An electrically heated water-washing type waste gas treatment device and its working method

Abstract

The present invention discloses an electric heating water-washing waste gas treatment device and a working method thereof, comprising a base plate, a pump pipe system, a water tank, a heating oxidation system, a condensation system and a water-washing system, wherein the pump pipe system is fixedly connected to the base plate, the pump pipe system is communicatively connected to the water tank, the pump pipe system passes through the condensation system, the water tank is fixedly connected to the base plate, the heating oxidation system is arranged directly above the base plate and is connected to the water-washing system, the pump pipe system and the water-washing system are connected by a hose, and double-cavity thermal oxidation is adopted to improve the treatment efficiency, and when a failure occurs in the waste gas treatment device, the waste gas treatment device can be automatically switched to a spare device for treatment.

Description

Technical Field

[0001] The present invention belongs to the technical field of environmental protection equipment, and in particular, relates to an electric heating water-washing type waste gas treatment device and a working method thereof. Background Art

[0002] In the semiconductor, photovoltaic, LED and other manufacturing industries, toxic, harmful or other polluting waste gases are generated during the production process.

[0003] The current electrically heated water-washing type waste gas treatment device adopts a single-chamber thermal oxidation method, and then washes the oxidized waste gas through a water tank to remove the water-soluble pollutant gases in the waste gas.

[0004] The defects of the prior art are:

[0005] 1. Using single-chamber thermal oxidation, the waste gas stays in the reaction chamber for a short time, is not fully oxidized, and is not completely treated. Then it enters the exhaust pipe, and the waste gas treatment effect is poor. The waste gas treatment efficiency is relatively low, and the treatment capacity is 200L / min;

[0006] 2. The oxidized waste gas is washed in a water pool. First, the speed of the airflow through the water pool directly affects the washing effect. If the speed is too fast, the washing effect is poor, and if the speed is too slow, the washing efficiency is low. There are also ways to increase the depth of the water pool so that the gas molecules can fully contact with the water, thereby improving the washing effect, which invisibly increases the height and size of the equipment.

[0007] 3. When an existing waste gas treatment device fails, the waste gas cannot be transferred to a spare waste gas treatment device for further treatment, so that when the device is disassembled for maintenance, the waste gas is discharged into the atmosphere, causing pollution, and causing harm to the maintenance personnel. Summary of the invention

[0008] The present invention provides an electric heating water washing type waste gas treatment device and a working method thereof, which solves the problems existing in the prior art.

[0009] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an electrically heated water-washing exhaust gas treatment device, comprising a base plate, a pump pipe system, a water tank, a heating oxidation system, a condensation system and a water washing system, the pump pipe system is fixedly connected to the base plate, the pump pipe system is communicated with the water tank, the pump pipe system passes through the condensation system, the water tank is fixedly connected to the base plate, the heating oxidation system is arranged directly above the base plate and is connected to the water washing system, and the pump pipe system and the water washing system are connected by a hose.

[0010] Preferably, the pump-pipe system consists of a water inlet pipe, a water pump, water pipe one, water pipe two, tee one, water pipe three, water pipe four, a sewage pipe and a diversion system, one end of the water inlet pipe is connected to an external water source, and the other end is communicated with the upper end of the water tank, the water inlet of the water pump is communicated with one end of water pipe one, the other end of water pipe one is communicated with the lower end of the water tank, the water outlet of the water pump is communicated with one end of water pipe two, the other end of water pipe two is communicated with tee one, the upper end of water pipe three is communicated with tee one, the lower end of water pipe three is connected to the condensation system, the lower end of water pipe four is connected to the condensation system, and water pipe three and water pipe four are communicated in the condensation system, the upper end of water pipe four is communicated with the diversion system, and the lower end of the sewage pipe is communicated with tee one.

[0011] Preferably, the water inlet pipe is provided with a manual valve 1, a tee valve 2, a pneumatic valve 1, a pneumatic valve 2, a manual valve 2 and a total flow meter in sequence along the water inlet direction; the tee valve 2 is externally connected to a water vapor system;

[0012] The water pipe 1 is provided with a manual valve 3;

[0013] The water pipe 2 is provided with a manual valve 4 and a Y-type filter;

[0014] The upper end of the water pipe 4 is provided with a three-way connection;

[0015] The sewage pipe is provided with a three-way valve four, a pneumatic valve three and a manual valve five in sequence along the drainage direction.

[0016] Preferably, the flow diversion system comprises a first flow diversion pipe and a second flow diversion pipe, and the first flow diversion pipe and the second flow diversion pipe are respectively connected to a three-way three-phase connection;

[0017] The first shunt pipe is provided with a manual valve 6, the end of the first shunt pipe is connected to a shunt flow meter 1, a tee 5 is provided at the water outlet of the shunt flow meter 1, one end of the tee 5 is connected to a double hose joint, the other end of the tee 5 is connected to a tee 6, and the two water outlet ends of the tee 6 are respectively connected to double hose joints;

[0018] The end of the second flow divider pipe is connected to a flow divider 2, a manual valve 7 is provided at the water outlet of the flow divider 2, and a double hose joint is provided at the water outlet of the manual valve 7.

[0019] Preferably, a partition frame is provided in the middle of the water tank, the partition frame divides the water tank into a sedimentation chamber and a purification chamber, and a microporous mesh is provided on the partition frame;

[0020] A water tank water inlet is provided at the upper end of the side wall of the purification chamber, and the water tank water inlet is connected to the end of the water inlet pipe, and a water tank water outlet is provided at the lower end of the side wall of the purification chamber, and the water tank water outlet is connected to one end of the water pipe;

[0021] A cleaning water inlet is provided at the upper end of the sedimentation chamber of the water tank;

[0022] An observation window and a thermocouple 1 are provided at the upper end of the water tank;

[0023] A pipe joint 1 is arranged at the corner of the upper end of the sedimentation chamber of the water tank, and a pipe joint 2 and a liquid level meter are arranged on the side wall of the purification chamber of the water tank.

[0024] Preferably, the heating oxidation system is composed of a rack, an air intake cylinder, an exhaust gas intake pipe, a first heating cylinder group, a connecting cylinder, a second heating cylinder group and a mixed gas input pipe. The rack is provided with two groups, the first heating cylinder group and the second heating cylinder group are connected in series in a U-shaped circuitous manner through the connecting cylinder, and the air intake cylinder is connected to the lower end of the first heating cylinder group;

[0025] A plurality of exhaust gas inlet ports and a gas interface 1 are evenly arranged on the outer wall of the air intake cylinder, the exhaust gas inlet pipe is connected to the exhaust gas inlet port, the mixed gas input pipe is connected to the gas interface 1, and a compressed air flow sensor and a water vapor flow sensor are connected to the mixed gas input pipe;

[0026] A supporting flange is provided inside the air inlet cylinder, and an annular groove is formed between the supporting flange and the air inlet cylinder, and the gas interface 1 is communicated and connected with the annular groove;

[0027] A two-way reversing valve is provided on the exhaust gas inlet pipe, and an air inlet interface, an air outlet interface 1 and an air outlet interface 2 are provided on the two-way reversing valve. The air inlet interface is connected to the exhaust gas source, the air outlet interface 1 is connected to the exhaust gas inlet pipe, and the air outlet interface 2 is connected to the air inlet interface of the two-way reversing valve of the adjacent electric heating water-washing exhaust gas treatment device.

[0028] Preferably, the first heating cylinder group is composed of an outer protective cylinder 1 and an inner heating cylinder 1, wherein the inner heating cylinder 1 is arranged at the center of the outer protective cylinder 1 and is fixedly mounted at both ends by flanges;

[0029] The lower end of the outer wall of the outer protective tube is provided with a compressed air inlet, the middle of the outer wall of the outer protective tube is provided with a thermocouple sensor installation port, the upper part of the outer wall of the outer protective tube is provided with a power line through-hole, and a fixed mounting seat is provided between the thermocouple sensor installation port and the power line through-hole, the fixed mounting seat is connected to the bracket, and an electric heating tube is provided on the inner side of the outer protective tube outside the inner heating tube;

[0030] The second heating cylinder group is composed of an outer protective cylinder 2 and an inner heating cylinder 2, wherein the inner heating cylinder 2 is arranged at the center of the outer protective cylinder 2 and fixedly installed at both ends by flanges;

[0031] The lower end of the outer wall of the outer protective tube is provided with a compressed air inlet port two, the middle part of the outer wall of the outer protective tube is provided with a thermocouple sensor installation port two, the upper part of the outer wall of the outer protective tube is provided with a power cord insertion port two, and a fixed mounting seat two is provided between the thermocouple sensor installation port two and the power cord insertion port two, the fixed mounting seat two is connected to the bracket, and an electric heating tube two is provided on the inner side of the outer protective tube two outside the inner heating tube two.

[0032] Preferably, the condensation system is composed of a condensation water inlet pipe, a condenser and a condensation water outlet pipe, wherein the condensation water inlet pipe is connected to the condenser, and the condensation water outlet pipe is connected to the condenser;

[0033] The condensate water inlet pipe is provided with a manual valve eight and a manual valve nine in sequence along the water inlet direction; the condensate water outlet pipe is provided with a manual valve eleven and a manual valve ten in sequence along the water outlet direction.

[0034] Preferably, the water washing system is composed of an inner water washing cylinder, an outer water washing cylinder, a bellows, a transition water tank, a primary water washing tower, a secondary water washing tower and a tertiary water washing tower, the inner water washing cylinder is inserted into the outer water washing cylinder, the lower end of the inner water washing cylinder is connected to the transition water tank, the upper end of the outer water washing cylinder is connected to the lower end of the second heating cylinder group, the lower end of the bellows is connected to the water tank, the lower end of the primary water washing tower is connected to the transition water tank, the lower end of the secondary water washing tower is connected to the upper end of the primary water washing tower, and the lower end of the tertiary water washing tower is connected to the upper end of the secondary water washing tower;

[0035] A plurality of spray heads are evenly arranged on the outer wall of the inner water washing cylinder;

[0036] Two spray heads are symmetrically arranged on the outer wall of the outer water washing cylinder;

[0037] A water tank is formed between the upper end of the inner water washing cylinder and the outer water washing cylinder, and the second spray head is connected to the water tank;

[0038] The first-level water washing tower is provided with a first-level spray head, and a blowing port 1 is provided at a symmetrical position of the first-level spray head;

[0039] The secondary water washing tower is provided with a secondary spray head, a second air inlet is provided at a symmetrical position of the secondary spray head, a third thermocouple is provided on one side above the secondary spray head, and a third gas interface is provided on the other side above the secondary spray head;

[0040] The installation direction of the plurality of spray heads is to be inserted along the chord length direction of the cross-section circle of the inner water washing cylinder, and to form an angle of 30°-60° with the horizontal plane;

[0041] The installation direction of the symmetrically arranged spray head 2 is to be inserted along the chord length direction of the cross-section circle of the outer water washing cylinder, and to form an angle of 10°-20° with the horizontal plane;

[0042] The transition water tank is provided with two thermocouples, and the transition water tank is a wedge-shaped structure with one end larger than the other end, and one side of the bellows is larger than the side of the primary water washing tower;

[0043] The first-level spray head sprays horizontally, and the second-level spray head sprays vertically downward.

[0044] A working method of an electric heating water-washing exhaust gas treatment device specifically comprises the following steps:

[0045] Step 1: Open the manual valve 1, pneumatic valve 1, pneumatic valve 2 and manual valve 2 on the water inlet pipe in sequence, and then the external water source enters the water tank through the total flow meter and the water inlet of the water tank, and observe the amount of water entering the water tank through the total flow meter;

[0046] Step 2: Manually close the manual valve 1 and the manual valve 2 or automatically close the pneumatic valve 1 and the pneumatic valve 2 through the liquid level gauge provided on the side wall of the purification chamber of the water tank;

[0047] Step 3: Open the manual valve 3 on the water pipe 1, open the manual valve 4 on the water pipe 2, open the manual valve 6 on the first diversion pipe, open the manual valve 7 on the second diversion pipe, and close the pneumatic valve 3 and the manual valve 5 on the sewage pipe;

[0048] Step 4: Start the water pump. The water pump draws the water from the water tank from the water tank outlet, passes through water pipe 1, and then passes through the Y-type filter on water pipe 2. Then, it enters water pipe 3 through tee 1, passes through the condensation system, and then enters tee 3 through water pipe 4. One side of the water enters the first diversion pipe, and the other side of the water enters the second diversion pipe.

[0049] The water entering the first diversion pipe passes through manual valve six and flow meter one to reach tee five, one way directly enters the double hose joint, and then is respectively connected to the primary sprinkler head and the secondary sprinkler head through two hoses, and the other way passes through tee six to enter the two double hose joints, and then is respectively connected to sprinkler head one through multiple hoses;

[0050] The water entering the second diversion pipe directly enters the double hose joint through the diversion flow meter 2 and the manual valve 7, and then is respectively connected to the second sprinkler head through two hoses;

[0051] Step 5: Start the condensation system, open the manual valve 8 and the manual valve 9 on the condensation water inlet pipe, open the manual valve 10 and the manual valve 11 on the condensation water outlet pipe, and the condensation water enters the condenser from the condensation water inlet pipe to cool the water flowing through the pump pipe system, and then the condensation water flows out from the condensation water outlet pipe;

[0052] Step 6: Start the heating oxidation system, firstly, energize and heat the internal electric heating tube 1 and electric heating tube 2 through the power line insertion interface 1 on the outer protective tube 1 and the power line insertion interface 2 on the outer protective tube 2, and then obtain the temperature through the temperature sensors installed at the thermocouple sensor installation port 1 on the outer protective tube 1 and the thermocouple sensor installation port 2 on the outer protective tube 2;

[0053] Step 7: When the temperature of the outer wall of the inner heating tube 1 and the inner heating tube 2 reaches 650°C, the compressed air is introduced into the inner heating tube 1 through the compressed air inlet 1 on the outer protective tube 1, and the compressed air is introduced into the inner heating tube 2 through the compressed air inlet 2 on the outer protective tube 2;

[0054] Step 8: Mix the compressed air passing through the compressed air flow sensor and the water vapor of the water vapor flow sensor in the mixed gas input pipe, and then respectively pass through the gas interface 1 into a ring groove formed between the support flange and the air inlet cylinder, and then go up to the inner heating cylinder 1, and enter the inner heating cylinder 2 through the connecting cylinder, and then pass through the outer water washing cylinder, the inner water washing cylinder, the transition water tank, the first water washing tower, the second water washing tower and the third water washing tower in turn into the atmosphere;

[0055] Step nine: Open the two-way reversing valve to connect the air inlet interface and the air outlet interface 1. The exhaust gas enters the supporting flange from the exhaust gas inlet pipe through the exhaust gas inlet port on the air inlet cylinder, and then goes up to enter the inner heating cylinder 1 in the first heating cylinder group, and then enters the inner heating cylinder 2 in the second heating cylinder group through the connecting cylinder. The exhaust gas is mixed with the mixed gas of compressed air and water vapor introduced from the gas interface 1 and the compressed air introduced from the compressed air inlet port 1 and the compressed air inlet port 2 in the inner heating cylinder 1 and the inner heating cylinder 2. The exhaust gas is oxidized and decomposed in the high temperature and high humidity environment of the inner heating cylinder 1 and the inner heating cylinder 2, and then enters the outer water washing cylinder and the inner water washing cylinder. When the decomposed exhaust gas passes through the water film formed by the spray head 1, the particulate matter in the exhaust gas is attached to the water and separated from the exhaust gas, and falls into the transition water tank. At the same time, the pollutant gas molecules that are easily soluble in water in the exhaust gas dissolve in the water, fall into the transition water tank with the water, and then flow into the sedimentation chamber of the water tank through the bellows;

[0056] The waste gas mixed with compressed air and water vapor enters the primary water scrubber through the transition water tank and passes through the water film sprayed horizontally from the primary spray head. The particles in the waste gas are attached to the water for the second time and separated from the waste gas and fall into the transition water tank. At the same time, the pollutant gas molecules in the waste gas that are easily soluble in water are dissolved in water for the second time, fall into the transition water tank with the water, and then flow into the sedimentation chamber of the water tank through the bellows.

[0057] The waste gas mixed with compressed air and water vapor enters the secondary water scrubber through the primary water scrubber and passes through the spray water sprayed vertically downward from the secondary spray head. The particles in the waste gas are attached to the water for the third time and separated from the waste gas, passing through the primary water scrubber and falling into the transition water tank. At the same time, the pollutant gas molecules that are easily soluble in water in the waste gas are dissolved in water for the third time, passing through the primary water scrubber, falling into the transition water tank with water, and then flowing into the sedimentation chamber of the water tank through the bellows.

[0058] Step 10: Repeat the operation of step 4 repeatedly to process the exhaust gas repeatedly. Large particles are filtered in the sedimentation chamber by the microporous mesh on the partition frame, and small particles are filtered by the Y-type filter;

[0059] Step 11: Close manual valve 6 and manual valve 7, open pneumatic valve 3 and manual valve 5 on the sewage pipe in sequence, and the water pump draws the water from the water tank through the water outlet of the water tank, passes through water pipe 1 and the Y-type filter on water pipe 2, and then is discharged through tee 1 and the sewage pipe, and discharged into the sewage purification tank;

[0060] Step 12: Fill the water tank with new water to prepare for the next work.

[0061] The beneficial effects of adopting the above technical solution are:

[0062] 1. The working process of the electric heating water washing exhaust gas treatment device is as follows:

[0063] Step 1: Open the manual valve 1, pneumatic valve 1, pneumatic valve 2 and manual valve 2 on the water inlet pipe in sequence, and then the external water source enters the water tank through the total flow meter and the water inlet of the water tank, and observe the amount of water entering the water tank through the total flow meter;

[0064] Step 2: Manually close the manual valve 1 and the manual valve 2 or automatically close the pneumatic valve 1 and the pneumatic valve 2 through the liquid level gauge provided on the side wall of the purification chamber of the water tank; under normal circumstances, the manual valve 1 and the manual valve 2 are in the normally open state, realizing the coexistence of the automatic control of the pneumatic valve and the manual control in case of emergency failure;

[0065] Step 3: Open the manual valve 3 on the water pipe 1, open the manual valve 4 on the water pipe 2, open the manual valve 6 on the first diversion pipe, open the manual valve 7 on the second diversion pipe, and close the pneumatic valve 3 and the manual valve 5 on the sewage pipe;

[0066] Step 4: Start the water pump. The water pump draws the water from the water tank from the water tank outlet, passes through water pipe 1, and then passes through the Y-type filter on water pipe 2. Then, it enters water pipe 3 through tee 1, passes through the condensation system, and then enters tee 3 through water pipe 4. One side of the water enters the first diversion pipe, and the other side of the water enters the second diversion pipe.

[0067] The water entering the first diversion pipe passes through manual valve six and flow meter one to reach tee five, one way directly enters the double hose joint, and then is respectively connected to the primary sprinkler head and the secondary sprinkler head through two hoses, and the other way passes through tee six to enter the two double hose joints, and then is respectively connected to sprinkler head one through multiple hoses;

[0068] The water entering the second shunt pipe directly enters the double hose joint through the shunt flow meter 2 and the manual valve 7, and then is respectively connected to the sprinkler head 2 through two hoses, thus realizing the continuous circulation and spraying operation of water;

[0069] Step 5: Start the condensation system, open the manual valve 8 and the manual valve 9 on the condensation water inlet pipe, open the manual valve 10 and the manual valve 11 on the condensation water outlet pipe, and the condensation water enters the condenser from the condensation water inlet pipe to cool the water flowing through the pump pipe system, and then the condensation water flows out from the condensation water outlet pipe; the cooling operation of the sprayed water is realized, thereby achieving the purpose of reducing the exhaust gas temperature;

[0070] Step 6: Start the heating oxidation system, firstly, energize and heat the internal electric heating tube 1 and electric heating tube 2 through the power line insertion interface 1 on the outer protective tube 1 and the power line insertion interface 2 on the outer protective tube 2, and then obtain the temperature through the temperature sensors installed at the thermocouple sensor installation port 1 on the outer protective tube 1 and the thermocouple sensor installation port 2 on the outer protective tube 2;

[0071] Step 7: When the temperature of the outer wall of the inner heating tube 1 and the inner heating tube 2 reaches 650°C, the compressed air is introduced into the inner heating tube 1 through the compressed air inlet 1 on the outer protective tube 1, and the compressed air is introduced into the inner heating tube 2 through the compressed air inlet 2 on the outer protective tube 2;

[0072] Step 8: Mix the compressed air passing through the compressed air flow sensor and the water vapor of the water vapor flow sensor in the mixed gas input pipe, and then respectively pass them into a ring groove formed between the support flange and the air inlet cylinder from the gas interface 1, and then go up to the inner heating cylinder 1, and enter the inner heating cylinder 2 through the connecting cylinder, and then pass through the outer water washing cylinder, the inner water washing cylinder, the transition water tank, the first water washing tower, the second water washing tower and the third water washing tower in turn into the atmosphere; so that the interior of the entire exhaust gas treatment device is in a high temperature and high humidity environment;

[0073] Step 9: Open the two-way reversing valve to connect the air inlet interface and the air outlet interface 1. The exhaust gas enters the support flange from the exhaust gas inlet pipe through the exhaust gas inlet port on the air inlet cylinder, and then goes up to the internal heating cylinder 1 in the first heating cylinder group, and then enters the internal heating cylinder 2 in the second heating cylinder group through the connecting cylinder. The first heating cylinder group and the second heating cylinder group are connected in series in a U-shaped circuit through the connecting cylinder, and dual-chamber thermal oxidation is adopted. The exhaust gas stays in the reaction chamber for a long time and is oxidized sufficiently, so that the exhaust gas is treated more completely, and then enters the exhaust pipe, which has a better exhaust gas treatment effect and a relatively high exhaust gas treatment efficiency, with a treatment capacity of 600L / min; the exhaust gas in the internal heating cylinder 1 and the internal heating In the second cylinder, the mixed gas of compressed air and water vapor introduced from the gas interface 1 is mixed with the compressed air introduced from the compressed air inlet 1 and the compressed air inlet 2, thereby ensuring the content of oxygen molecules in the inner heating cylinder 1 and the inner heating cylinder 2; the waste gas is oxidized and decomposed in the high temperature and high humidity environment of the inner heating cylinder 1 and the inner heating cylinder 2, and then enters the outer water washing cylinder and the inner water washing cylinder. When the decomposed waste gas passes through the water film formed by the spray head 1, the particulate matter in the waste gas is attached to the water and separated from the waste gas, and falls into the transition water tank. At the same time, the pollutant gas molecules in the waste gas that are easily soluble in water are dissolved in the water, fall into the transition water tank with the water, and then flow into the sedimentation chamber of the water tank through the bellows;

[0074] The waste gas mixed with compressed air and water vapor enters the primary water scrubber through the transition water tank and passes through the water film sprayed horizontally from the primary spray head. The particles in the waste gas are attached to the water for the second time and separated from the waste gas and fall into the transition water tank. At the same time, the pollutant gas molecules in the waste gas that are easily soluble in water are dissolved in water for the second time, fall into the transition water tank with the water, and then flow into the sedimentation chamber of the water tank through the bellows.

[0075] The waste gas mixed with compressed air and water vapor enters the secondary water washing tower through the primary water washing tower and passes through the spray water sprayed vertically downward from the secondary spray head. The particulate matter in the waste gas is attached to the water for the third time and separated from the waste gas, passes through the primary water washing tower, and falls into the transition water tank. At the same time, the pollutant gas molecules that are easily soluble in water in the waste gas are dissolved in water for the third time, pass through the primary water washing tower, fall into the transition water tank with water, and then flow into the sedimentation chamber of the water tank through the bellows. Compared with the traditional method of washing the oxidized waste gas through a water pool, the oxidized waste gas of the present invention passes through the vortex of the air flow at the water film position formed by the spray head, the waste gas is cut by the air flow at the water film position sprayed horizontally by the primary spray head, and the waste gas passes through the spray water sprayed vertically downward by the secondary spray head in a reverse direction, which does not affect the air flow passing speed, that is, the washing effect is guaranteed, and the washing efficiency is also guaranteed.

[0076] Step 10: Repeat the operation of step 4 repeatedly to process the exhaust gas repeatedly. Large particles are filtered in the sedimentation chamber by the microporous mesh on the partition frame, and small particles are filtered by the Y-type filter;

[0077] Step 11: Close manual valve 6 and manual valve 7, open pneumatic valve 3 and manual valve 5 on the sewage pipe in sequence, and the water pump draws the water from the water tank through the water outlet of the water tank, passes through water pipe 1 and the Y-type filter on water pipe 2, and then is discharged through tee 1 and the sewage pipe, and discharged into the sewage purification tank;

[0078] Step 12: Fill the water tank with new water to prepare for the next work.

[0079] Through the above steps 1 to 12, the particulate matter in the exhaust gas and the polluting gas molecules that are easily soluble in water are sprayed, attached, collected and settled for multiple times, with good decontamination effect and high decontamination efficiency.

[0080] 2. The working principle of the pump and pipe system of the electric heating water-washing exhaust gas treatment device is:

[0081] Step 1: Open the manual valve 1, pneumatic valve 1, pneumatic valve 2 and manual valve 2 on the water inlet pipe in sequence, and then the external water source enters the water tank through the total flow meter and the water inlet of the water tank, and observe the amount of water entering the water tank through the total flow meter;

[0082] Step 2: Manually close the manual valve 1 and the manual valve 2 or automatically close the pneumatic valve 1 and the pneumatic valve 2 through the liquid level gauge provided on the side wall of the purification chamber of the water tank;

[0083] Step 3: Open the manual valve 3 on the water pipe 1, open the manual valve 4 on the water pipe 2, open the manual valve 6 on the first diversion pipe, open the manual valve 7 on the second diversion pipe, and close the pneumatic valve 3 and the manual valve 5 on the sewage pipe;

[0084] Step 4: Start the water pump. The water pump draws the water from the water tank from the water tank outlet, passes through water pipe 1, and then passes through the Y-type filter on water pipe 2. Then, it enters water pipe 3 through tee 1, passes through the condensation system, and then enters tee 3 through water pipe 4. One side of the water enters the first diversion pipe, and the other side of the water enters the second diversion pipe.

[0085] The water entering the first diversion pipe passes through manual valve six and flow meter one to reach tee five, one way directly enters the double hose joint, and then is respectively connected to the primary sprinkler head and the secondary sprinkler head through two hoses, and the other way passes through tee six to enter the two double hose joints, and then is respectively connected to sprinkler head one through multiple hoses;

[0086] The water entering the second diversion pipe directly enters the double hose joint through the diversion flow meter 2 and the manual valve 7, and then is respectively connected to the second sprinkler head through two hoses;

[0087] Through the pump and pipe system, on the one hand, a new clean water source can be introduced into the water tank or a new clean water source can be replaced for the water tank. On the other hand, the water in the water tank can be repeatedly sprayed, attached and cooled until the spraying water can no longer attach particulate matter and dissolve polluting gas molecules that are easily soluble in water, thereby saving water resources.

[0088] 3. The electrically heated water-washing exhaust gas treatment device has a partition frame in the middle of the water tank, which divides the water tank into a sedimentation chamber and a purification chamber. The sedimentation chamber is used to precipitate particulate matter flowing in from the transition water tank; a microporous mesh is provided on the partition frame, which prevents particulate matter in the sedimentation chamber from entering the purification chamber under the suction action of the water pump, thereby preventing the narrow spray ports on the first spray head, the second spray head, the first-level spray head and the second-level spray head from being blocked, thereby ensuring the normal operation of the exhaust gas treatment device.

[0089] A water tank inlet is provided at the upper end of the side wall of the purification chamber, and the water tank inlet is communicated with the end of the water inlet pipe; a water tank outlet is provided at the lower end of the side wall of the purification chamber, and the water tank outlet is communicated with one end of the water pipe, thereby realizing the connection with an external water source and a water pump; a cleaning water inlet is provided at the upper end of the sedimentation chamber of the water tank, thereby ensuring the collection and circulation of the spray water for spraying; an observation window is provided at the upper end of the water tank, thereby facilitating the observation of the blockage of particles on the microporous net; a thermocouple is provided at the upper end of the water tank, thereby monitoring the particles collected in the water tank in real time the temperature of the spray water; a pipe joint 1 is provided at the corner of the upper end of the sedimentation chamber of the water tank, which ensures that the sedimentation chamber and the purification chamber in the water tank are connected to the outside atmosphere, ensuring the suction operation of the water pump; a pipe joint 2 is provided on the side wall of the purification chamber of the water tank, and air is blown into the purification chamber through the pipe joint 2, so that the particles attached to the microporous net by the suction action of the water pump are blown into the sedimentation chamber to avoid blocking the passability of the spray water; a liquid level gauge is provided on the side wall of the purification chamber of the water tank to observe the liquid level in the water tank to avoid excessive water entering the water tank.

[0090] 4. The electrically heated water-washing exhaust gas treatment device has a plurality of exhaust gas inlets and a gas interface 1 evenly arranged on the outer wall of the air intake cylinder, the exhaust gas inlet pipe is communicated with the exhaust gas inlet, the mixed gas input pipe is communicated with the gas interface 1, and a compressed air flow sensor and a water vapor flow sensor are connected to the mixed gas input pipe.

[0091] A supporting flange is provided inside the air intake cylinder, and an annular groove is formed between the supporting flange and the air intake cylinder, and the gas interface 1 is connected to the annular groove; the exhaust gas inlet port directly leads to the supporting flange in the air intake cylinder, and then the mixed gas of compressed air and water vapor input from the mixed gas input pipe enters the annular groove from the gas interface 1, so that the air pressure in the annular groove is greater than the air pressure in the supporting flange, which ensures that the exhaust gas will not stay in the annular groove on the one hand, and ensures that the mixed gas of compressed air and water vapor is fully mixed with the exhaust gas on the other hand.

[0092] The exhaust gas inlet pipe is provided with a two-way reversing valve, and the two-way reversing valve is provided with an air inlet interface, an air outlet interface 1 and an air outlet interface 2, and the air inlet interface is connected to the exhaust gas source, the air outlet interface 1 is connected to the exhaust gas inlet pipe, and the air outlet interface 2 is connected to the air inlet interface of the two-way reversing valve of the adjacent electric heating water-washing exhaust gas treatment device. After a failure of the exhaust gas treatment device, the two-way reversing valve connects the air inlet interface with the air outlet interface 2, so that the exhaust gas is switched to the spare exhaust gas treatment device for further treatment, so that when the exhaust gas is disassembled for maintenance, the exhaust gas will not be discharged into the atmosphere to cause pollution, and will not cause harm to the maintenance personnel.

[0093] 5. In the electrically heated water-washing exhaust gas treatment device, a plurality of spray heads are evenly arranged on the outer wall of the inner water-washing cylinder. The installation direction of the plurality of spray heads is inserted along the chord length direction of the cross-sectional circle of the inner water-washing cylinder, and forms an angle of 30°-60° with the horizontal plane; so that the spray water sprayed by the plurality of spray heads presents a vortex inverted cone, which does not affect the exhaust gas flow speed, thereby ensuring the washing effect and the washing efficiency.

[0094] Two spray heads are symmetrically arranged on the outer wall of the outer water washing cylinder. The installation direction of the symmetrically arranged two spray heads is to be inserted along the chord length direction of the cross-sectional circle of the outer water washing cylinder, and to form an angle of 10°-20° with the horizontal plane; the inner water washing cylinder is inserted into the outer water washing cylinder, and a water trough is formed between the upper end of the inner water washing cylinder and the outer water washing cylinder, and the two spray heads are connected to the water trough; the spray water sprayed by the two spray heads rotates in the water trough, then overflows the upper edge of the inner water washing cylinder, and flows into the transition water tank from the inner wall of the inner water washing cylinder, thereby preventing the particles attached by the spray water from adhering to the inner wall of the inner water washing cylinder.

[0095] The primary water washing tower is provided with a primary spray head, which sprays horizontally to form a horizontal water film. The exhaust gas passes through the horizontally sprayed water film, and the particulate matter in the exhaust gas is attached to the water for a second time and separated from the exhaust gas, and falls into the transition water tank. At the same time, the pollutant gas molecules that are easily soluble in water in the exhaust gas are dissolved in water for a second time; a blowing port 1 is provided at a symmetrical position of the primary spray head, so that the blowing port 1 blows air downward to blow the spray atomized water vapor downward to make it fall into the transition water tank and then enter the water tank, thereby avoiding the water vapor generated when the spray water is sprayed out of the water washing system, ensuring that the water capacity in the water tank is minimized, avoiding the operation of adding water to the water tank during the operation of the equipment, reducing the equipment operation process, and simplifying the operation.

[0096] The secondary water washing tower is provided with a secondary spray head, which sprays spray water vertically downward. The exhaust gas passes through the spray water sprayed vertically downward in reverse. The particulate matter in the exhaust gas is attached to the water for the third time and separated from the exhaust gas, passes through the primary water washing tower, and falls into the transition water tank. At the same time, the pollutant gas molecules that are easily soluble in water in the exhaust gas are dissolved in water for the third time, pass through the primary water washing tower, fall into the transition water tank with the water, and then flow into the sedimentation chamber of the water tank through the bellows; a second air blowing port is provided at a symmetrical position of the secondary spray head, so that the second air blowing port blows air downward, blows the spray atomized water vapor downward, makes it fall into the transition water tank and then enters the water tank, avoids taking the water vapor generated when the spray water is sprayed out of the water washing system, ensures that the water capacity in the water tank is minimized, avoids the operation of adding water to the water tank during the operation of the equipment, reduces the equipment operation process, and is simple to operate.

[0097] A thermocouple three is provided on one side above the secondary spray head to monitor the exhaust temperature of the secondary water washing tower in real time; a gas interface three is provided on the other side above the secondary spray head to blow air into the secondary spray head through the gas interface three to prevent the secondary spray head from being blocked.

[0098] The transition water tank is provided with two thermocouples, and the transition water tank is a wedge-shaped structure with one end larger than the other end, and one side of the bellows is larger than the side of the primary water washing tower, thereby ensuring that the spray water flowing from the inner water washing cylinder, the primary water washing tower and the secondary water washing tower can flow to one end of the transition water tank under the action of gravity, and then flow into the water tank through the bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0099] Figure 1 This is the overall assembly diagram of the electric heating water-washing exhaust gas treatment device;

[0100] Figure 2 This is a schematic diagram of the pump pipe system and condensation system structure. Figure 1 ;

[0101] Figure 3 This is a schematic diagram of the pump pipe system and condensation system structure. Figure 2 ;

[0102] Figure 4 The water tank structure diagram Figure 1 ;

[0103] Figure 5 The water tank structure diagram Figure 2 ;

[0104] Figure 6 It is a schematic diagram of the internal structure of the water tank;

[0105] Figure 7 It is the heating oxidation system assembly diagram;

[0106] Figure 8 It is an exploded diagram of the heating oxidation system;

[0107] Fig. 9 The structure of the air intake cylinder Figure 1 ;

[0108] Fig.10 The structure of the air intake cylinder Figure 2 ;

[0109] Fig.11 The structure of the air intake cylinder Figure 3 ;

[0110] Fig.12 is a cross-sectional view of the first heating cylinder assembly;

[0111] Fig.13 is a cross-sectional view of the second heating cylinder assembly;

[0112] Fig.14 It is the assembly diagram of the water washing system;

[0113] Fig.15 This is the assembly diagram of the inner and outer washing cylinders. Figure 1 ;

[0114] Fig.16 This is the assembly diagram of the inner and outer washing cylinders. Figure 2 ;

[0115] Fig.17 This is the assembly diagram of the inner and outer washing cylinders. Figure 3 ;

[0116] in:

[0117] 1. Base plate; 2. Pump pipe system; 3. Water tank; 4. Heating oxidation system; 5. Condensation system; 6. Water washing system;

[0118] 20, water inlet pipe; 20-1, manual valve 1; 20-2, tee 2; 20-3, pneumatic valve 1; 20-4, pneumatic valve 2; 20-5, manual valve 2; 20-6, total flow meter;

[0119] 21. Water pump;

[0120] 22. Water pipe 1; 22-1. Manual valve 3;

[0121] 23. Water pipe 2; 23-1. Manual valve 4; 23-2. Y-type filter;

[0122] 24. Three connections and one;

[0123] 25. Water pipe three;

[0124] 26, water pipe four; 26-1, three-way three;

[0125] 27, sewage pipe; 27-1, three-way four; 27-2, pneumatic valve three; 27-3, manual valve five;

[0126] 28, flow distribution system; 28-1, first flow distribution pipe; 28-10, manual valve six; 28-11, flow distribution meter one; 28-12, three-way five; 28-13, three-way six; 28-2, second flow distribution pipe; 28-20, flow distribution meter two; 28-21, manual valve seven; 280, double hose joint;

[0127] 3-1, sedimentation chamber; 3-2, purification chamber;

[0128] 30. Bulkhead frame; 30-1. Microporous mesh; 31. Water tank inlet; 32. Water tank outlet; 33. Cleaning water inlet; 34. Observation window; 35. Thermocouple 1; 36. Pipe joint 1; 37. Pipe joint 2; 38. Liquid level gauge;

[0129] 40. Hanging rack;

[0130] 41, air intake cylinder; 41-1, exhaust gas inlet; 41-2, gas interface 1; 41-3, support flange; 41-4, ring groove;

[0131] 42, exhaust gas inlet pipe; 42-1, two-way reversing valve; 42-10, air inlet interface; 42-11, air outlet interface 1; 42-12, air outlet interface 2;

[0132] 43, first heating cylinder group; 43-1, an outer protective cylinder; 43-10, a compressed air inlet; 43-11, a thermocouple sensor installation port; 43-12, a power line threading port; 43-13, a fixed mounting base; 43-2, an inner heating cylinder; 43-3, an electric heating cylinder;

[0133] 44. Connecting tube;

[0134] 45, second heating tube group; 45-1, second outer protective tube; 45-10, second compressed air inlet; 45-11, second thermocouple sensor installation port; 45-12, second power line threading port; 45-13, second fixed mounting seat; 45-2, second inner heating tube; 45-3, second electric heating tube;

[0135] 46. ​​Mixed gas input pipe; 46-1. Compressed air flow sensor; 46-2. Water vapor flow sensor;

[0136] 50. Condensate inlet pipe; 50-1. Manual valve eight; 50-2. Manual valve nine;

[0137] 51. Condenser;

[0138] 52. Condensate outlet pipe; 52-1. Manual valve 10; 52-2. Manual valve 11;

[0139] 60, inner water washing cylinder; 60-1, spray head 1;

[0140] 61, external water washing cylinder; 61-1, spray head 2; 60-61, water tank;

[0141] 62. Bellows;

[0142] 63. Transition water tank; 63-1. Thermocouple 2;

[0143] 64, primary water washing tower; 64-1, primary spray head; 64-2, air inlet 1;

[0144] 65, secondary water washing tower; 65-1, secondary spray head; 65-2, air inlet 2; 65-3, thermocouple 3; 65-4, gas interface 3;

[0145] 66. Three-stage water washing tower. DETAILED DESCRIPTION

[0146] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and facilitating its implementation.

[0147] Specifically, Figures 1 to 17 As shown, an electric heating water washing type exhaust gas treatment device includes a base plate 1, a pump pipe system 2, a water tank 3, a heating oxidation system 4, a condensation system 5 and a water washing system 6, as shown in FIG. Figure 1 As shown, the pump pipe system 2 is fixedly connected to the base plate 1, the pump pipe system 2 is communicated with the water tank 3, the pump pipe system 2 passes through the condensation system 5, the water tank 3 is fixedly connected to the base plate 1, the heating oxidation system 4 is arranged directly above the base plate 1 and is connected to the water washing system 6, and the pump pipe system 2 and the water washing system 6 are connected by a hose.

[0148] like Figure 1 , Figure 2 , Figure 3As shown, the pump-pipe system 2 is composed of a water inlet pipe 20, a water pump 21, a water pipe 1 22, a water pipe 23, a three-way pipe 1 24, a water pipe 3 25, a water pipe 4 26, a sewage pipe 27 and a diversion system 28. One end of the water inlet pipe 20 is connected to an external water source, and the other end is connected to the upper end of the water tank 3. The water inlet of the water pump 21 is connected to one end of the water pipe 1 22, and the other end of the water pipe 1 22 is connected to the lower end of the water tank 3. The outlet of the water pump 21 is connected to the water source. The water inlet is connected to one end of water pipe 23, the other end of water pipe 23 is connected to tee 1 24, the upper end of water pipe 3 25 is connected to tee 1 24, the lower end of water pipe 3 25 is connected to the condensation system 5, the lower end of water pipe 4 26 is connected to the condensation system 5, and water pipe 3 25 and water pipe 4 26 are connected in the condensation system 5, the upper end of water pipe 4 26 is connected to the diversion system 28, and the lower end of the sewage pipe 27 is connected to tee 1 24.

[0149] like Figure 1 , Figure 2 , Figure 3 As shown, the water inlet pipe 20 is provided with a manual valve 1 20-1, a tee 20-2, a pneumatic valve 1 20-3, a pneumatic valve 20-4, a manual valve 2 20-5 and a total flow meter 20-6 in sequence along the water inlet direction; the tee 20-2 is externally connected to a water vapor system;

[0150] The water pipe 1 22 is provided with a manual valve 3 22-1;

[0151] The water pipe 23 is provided with a manual valve 23-1 and a Y-type filter 23-2;

[0152] The upper end of the water pipe 4 26 is provided with a tee 26-1;

[0153] The sewage pipe 27 is provided with a three-way valve 27-1, a pneumatic valve 27-2 and a manual valve 27-3 in sequence along the drainage direction.

[0154] like Figure 1 , Figure 2 , Figure 3 As shown, the flow dividing system 28 includes a first flow dividing pipe 28 - 1 and a second flow dividing pipe 28 - 2 , and the first flow dividing pipe 28 - 1 and the second flow dividing pipe 28 - 2 are respectively connected to the tee 26 - 1 ;

[0155] The first shunt pipe 28-1 is provided with a manual valve 6 28-10, the end of the first shunt pipe 28-1 is connected to a shunt flow meter 1 28-11, the outlet end of the shunt flow meter 1 28-11 is provided with a tee 5 28-12, one end of the tee 5 28-12 is connected to a double hose connector 280, the other end of the tee 5 28-12 is connected to a tee 6 28-13, and the two outlet ends of the tee 6 28-13 are respectively connected to double hose connectors 280;

[0156] The end of the second shunt pipe 28-2 is connected to a second shunt flow meter 28-20, a manual valve 28-21 is provided at the water outlet of the second shunt flow meter 28-20, and a double hose joint 280 is provided at the water outlet of the manual valve 28-21.

[0157] like Figure 6 As shown, a partition frame 30 is provided in the middle of the water tank 3, and the partition frame 30 divides the water tank 3 into a sedimentation chamber 3-1 and a purification chamber 3-2, and a microporous mesh 30-1 is provided on the partition frame 30;

[0158] like Figure 4 , Figure 6 As shown, a water tank inlet 31 is provided at the upper end of the side wall of the purification chamber 3-2, and the water tank inlet 31 is connected to the end of the water inlet pipe 20, and a water tank outlet 32 ​​is provided at the lower end of the side wall of the purification chamber 3-2, and the water tank outlet 32 ​​is connected to the end of the water pipe 22;

[0159] like Figure 4 , Figure 5 , Figure 6 As shown, a cleaning water inlet 33 is provided at the upper end of the sedimentation chamber 3-1 of the water tank 3;

[0160] like Figure 4 , Figure 5 As shown, an observation window 34 and a thermocouple 35 are provided at the upper end of the water tank 3;

[0161] like Figure 5 As shown, a pipe joint 1 36 is provided at the corner of the upper end of the sedimentation chamber 3 - 1 of the water tank 3 , and a pipe joint 2 37 and a liquid level meter 38 are provided on the side wall of the purification chamber 3 - 2 of the water tank 3 .

[0162] like Figure 7 , Figure 8 As shown, the heating oxidation system 4 is composed of a rack 40, an air intake cylinder 41, an exhaust gas intake pipe 42, a first heating cylinder group 43, a connecting cylinder 44, a second heating cylinder group 45 and a mixed gas input pipe 46. The rack 40 is provided with two groups, the first heating cylinder group 43 and the second heating cylinder group 45 are connected in series in a U-shaped circuitous manner through the connecting cylinder 44, and the air intake cylinder 41 is connected to the lower end of the first heating cylinder group 43;

[0163] like Fig. 9 , Fig.10 , Fig.11 As shown, a plurality of exhaust gas inlet ports 41-1 and a gas interface 1 41-2 are evenly arranged on the outer wall of the air inlet cylinder 41, the exhaust gas inlet pipe 42 is connected to the exhaust gas inlet port 41-1, the mixed gas input pipe 46 is connected to the gas interface 1 41-2, and the mixed gas input pipe 46 is connected to a compressed air flow sensor 46-1 and a water vapor flow sensor 46-2;

[0164] like Fig. 9 , Fig.10 , Fig.11 As shown, a support flange 41-3 is provided inside the air inlet cylinder 41, and an annular groove 41-4 is formed between the support flange 41-3 and the air inlet cylinder 41, and the gas interface 1 41-2 is connected to the annular groove 41-4;

[0165] like Figure 7 , Figure 8 As shown, the exhaust gas inlet pipe 42 is provided with a two-way reversing valve 42-1, and the two-way reversing valve 42-1 is provided with an inlet interface 42-10, an outlet interface 1 42-11 and an outlet interface 2 42-12, and the inlet interface 42-10 is connected to the exhaust gas source, the outlet interface 1 42-11 is connected to the exhaust gas inlet pipe 42, and the outlet interface 2 42-12 is connected to the inlet interface 42-10 of the two-way reversing valve 42-1 of the adjacent electric heating water washing type exhaust gas treatment device.

[0166] like Figure 7 , Figure 8 , Fig.12 As shown, the first heating cylinder group 43 is composed of an outer protective cylinder 43-1 and an inner heating cylinder 43-2. ​​The inner heating cylinder 43-2 is arranged at the center of the outer protective cylinder 43-1, and both ends are fixedly installed by flanges.

[0167] like Figure 7 , Figure 8 , Fig.12 As shown, a compressed air inlet 43-10 is provided at the lower end of the outer wall of the outer protective cylinder 43-1, a thermocouple sensor installation port 43-11 is provided in the middle of the outer wall of the outer protective cylinder 43-1, a power line insertion port 43-12 is provided at the upper part of the outer wall of the outer protective cylinder 43-1, and a fixed mounting seat 43-13 is provided between the thermocouple sensor installation port 43-11 and the power line insertion port 43-12, the fixed mounting seat 43-13 is connected to the bracket 40, and an electric heating cylinder 43-3 is provided on the inner side of the outer protective cylinder 43-1 outside the inner heating cylinder 43-2;

[0168] like Figure 7 , Figure 8 , Fig.13 As shown, the second heating cylinder group 45 is composed of an outer protective cylinder 45-1 and an inner heating cylinder 45-2. The inner heating cylinder 45-2 is arranged at the center of the outer protective cylinder 45-1, and both ends are fixedly installed by flanges.

[0169] like Figure 7 , Figure 8 , Fig.13As shown, a compressed air inlet port 45-10 is provided at the lower end of the outer wall of the outer protective tube 45-1, a thermocouple sensor installation port 45-11 is provided in the middle of the outer wall of the outer protective tube 45-1, a power cord insertion port 45-12 is provided at the upper part of the outer wall of the outer protective tube 45-1, and a fixed mounting seat 45-13 is provided between the thermocouple sensor installation port 45-11 and the power cord insertion port 45-12, the fixed mounting seat 45-13 is connected to the bracket 40, and an electric heating tube 45-3 is provided on the inner side of the outer protective tube 45-1 outside the inner heating tube 45-2.

[0170] like Figure 1 , Figure 2 , Figure 3 As shown, the condensation system 5 is composed of a condensation water inlet pipe 50, a condenser 51 and a condensation water outlet pipe 52, wherein the condensation water inlet pipe 50 is connected to the condenser 51, and the condensation water outlet pipe 52 is connected to the condenser 51;

[0171] The condensate inlet pipe 50 is provided with a manual valve eight 50-1 and a manual valve nine 50-2 in sequence along the water inlet direction; the condensate outlet pipe 52 is provided with manual valves ten 52-1-52-2 and a manual valve ten 52-1 in sequence along the water outlet direction.

[0172] like Figure 1 , Fig.14 , Fig.15 , Fig.16 , Fig.17 As shown, the water washing system 6 is composed of an inner water washing cylinder 60, an outer water washing cylinder 61, a bellows 62, a transition water tank 63, a primary water washing tower 64, a secondary water washing tower 65 and a tertiary water washing tower 66. The inner water washing cylinder 60 is inserted into the outer water washing cylinder 61, the lower end of the inner water washing cylinder 60 is connected to the transition water tank 63, the upper end of the outer water washing cylinder 61 is connected to the lower end of the second heating cylinder group 45, the lower end of the bellows 62 is connected to the water tank 3, the lower end of the primary water washing tower 64 is connected to the transition water tank 63, the lower end of the secondary water washing tower 65 is connected to the upper end of the primary water washing tower 64, and the lower end of the tertiary water washing tower 66 is connected to the upper end of the secondary water washing tower 65;

[0173] A plurality of spray heads 60-1 are evenly arranged on the outer wall of the inner water washing cylinder 60;

[0174] The outer wall of the outer water washing cylinder 61 is symmetrically provided with a second spray head 61-1;

[0175] The inner water washing cylinder 60 is inserted into the outer water washing cylinder 61, and a water tank 60-61 is formed between the upper end of the inner water washing cylinder 60 and the outer water washing cylinder 61, and the second spray head 61-1 is connected to the water tank 60-61;

[0176] The primary water washing tower 64 is provided with a primary spray head 64-1, and a blowing port 1 64-2 is provided at a symmetrical position of the primary spray head 64-1;

[0177] The secondary water washing tower 65 is provided with a secondary spray head 65-1, a second air blowing port 65-2 is symmetrically provided at the secondary spray head 65-1, a third thermocouple 65-3 is provided on one side above the secondary spray head 65-1, and a third gas interface 65-4 is provided on the other side above the secondary spray head 65-1;

[0178] The installation direction of the plurality of spray heads 60-1 is to be inserted along the chord length direction of the cross-sectional circle of the inner water washing tube 60, and to form an angle of 30°-60° with the horizontal plane;

[0179] The installation direction of the symmetrically arranged spray head 2 61-1 is to be inserted along the chord length direction of the cross-section circle of the outer water washing cylinder 61, and to form an angle of 10°-20° with the horizontal plane;

[0180] The transition water tank 63 is provided with a thermocouple 2 63-1, and the transition water tank 63 is a wedge-shaped structure with one end larger than the other end, and one side of the bellows 62 is larger than the first water washing tower 64 side.

[0181] The first-level spray head 64-1 sprays horizontally, and the second-level spray head 65-1 sprays vertically downward.

[0182] A working method of an electric heating water-washing exhaust gas treatment device specifically comprises the following steps:

[0183] Step 1: Open the manual valve 1 20-1, the pneumatic valve 1 20-3, the pneumatic valve 2 20-4 and the manual valve 2 20-5 on the water inlet pipe 20 in sequence, and then the external water source enters the water tank 3 through the total flow meter 20-6 and the water tank inlet 31, and observe the water volume entering the water tank 3 through the total flow meter 20-6;

[0184] Step 2: manually close the manual valve 1 20-1 and the manual valve 2 20-5 or automatically close the pneumatic valve 1 20-3 and the pneumatic valve 2 20-4 through the liquid level gauge 38 provided on the side wall of the purification chamber 3-2 of the water tank 3;

[0185] Step 3: Open the manual valve 3 22-1 on the water pipe 1 22, open the manual valve 4 23-1 on the water pipe 2 23, open the manual valve 6 28-10 on the first branch pipe 28-1, open the manual valve 7 28-21 on the second branch pipe 28-2, and close the pneumatic valve 3 27-2 and the manual valve 5 27-3 on the sewage pipe 27;

[0186] Step 4: Start the water pump 21. The water pump 21 pumps the water in the water tank 3 out of the water tank outlet 32, passes through the water pipe 1 22, and then passes through the Y-type filter 23-2 on the water pipe 2 23, and then enters the water pipe 20-3 through the tee 1 24, passes through the condensation system 5, and then enters the tee 3 26-1 through the water pipe 4 26. One side of the water enters the first diversion pipe 28-1, and the other side of the water enters the second diversion pipe 28-2;

[0187] The water entering the first branch pipe 28-1 passes through the manual valve 6 28-10 and the branch flow meter 1 28-11 to reach the tee 5 28-12, one way directly enters the double hose joint 280, and then communicates with the first-level sprinkler head 64-1 and the second-level sprinkler head 65-1 through two hoses, and the other way passes through the tee 6 28-13 to enter the two double hose joints 280, and then communicates with the sprinkler head 1 60-1 through multiple hoses.

[0188] The water entering the second flow distribution pipe 28-2 directly enters the double hose joint 280 through the flow distribution meter 28-20 and the manual valve 7 28-21, and then communicates with the second sprinkler head 61-1 through two hoses;

[0189] Step 5: Start the condensation system 5, open the manual valve eight 50-1 and the manual valve nine 50-2 on the condensation water inlet pipe 50, open the manual valve ten 52-1 and the manual valve ten 52-1-52-2 on the condensation water outlet pipe 52, and the condensation water enters the condenser 51 from the condensation water inlet pipe 50 to cool the water flowing through the pump pipe system 2, and then the condensation water flows out from the condensation water outlet pipe 52;

[0190] Step 6: Start the heating oxidation system 4, firstly, energize and heat the internal electric heating tube 1 43-3 and electric heating tube 2 45-3 through the power line insertion interface 1 43-12 on the outer protective tube 1 43-1 and the power line insertion interface 2 45-12 on the outer protective tube 2 45-1, and then obtain the temperature through the temperature sensors installed at the thermocouple sensor installation interface 1 43-11 on the outer protective tube 1 43-1 and the thermocouple sensor installation interface 2 45-11 on the outer protective tube 2 45-1;

[0191] Step 7: When the temperature of the outer wall of the inner heating cylinder 1 43-2 and the inner heating cylinder 2 45-2 reaches 650°C, compressed air is introduced into the inner heating cylinder 1 43-2 through the compressed air inlet 1 43-10 on the outer protective cylinder 1 43-1, and compressed air is introduced into the inner heating cylinder 2 45-2 through the compressed air inlet 2 45-10 on the outer protective cylinder 2 45-1;

[0192] Step 8: The compressed air passing through the compressed air flow sensor 46-1 and the water vapor of the water vapor flow sensor 46-2 are mixed in the mixed gas input pipe 46, and then respectively pass through the gas interface 1 41-2 into the annular groove 41-4 formed between the support flange 41-3 and the air inlet cylinder 41, and then go up to the inner heating cylinder 1 43-2, enter the inner heating cylinder 2 45-2 through the connecting cylinder 44, and then pass through the outer water washing cylinder 61, the inner water washing cylinder 60, the transition water tank 63, the primary water washing tower 64, the secondary water washing tower 65 and the tertiary water washing tower 66 to enter the atmosphere;

[0193] Step 9: Open the two-way reversing valve 42-1 to connect the air inlet interface 42-10 and the air outlet interface 1 42-11. The exhaust gas enters the support flange 41-3 from the exhaust gas inlet pipe 42 through the exhaust gas inlet port 41-1 on the air inlet cylinder 41, and then goes up to enter the inner heating cylinder 1 43-2 in the first heating cylinder group 43, and then enters the inner heating cylinder 2 45-2 in the second heating cylinder group 45 through the connecting cylinder 44. The exhaust gas is mixed with the mixed gas of compressed air and water vapor introduced from the gas interface 1 41-2 in the inner heating cylinder 1 43-2 and the inner heating cylinder 2 45-2, and is mixed with the mixed gas of compressed air and water vapor introduced from the compressed air inlet. The compressed air introduced from the air port 1 43-10 and the compressed air inlet 2 45-10 is mixed, and the waste gas is oxidized and decomposed in the high temperature and high humidity environment of the inner heating cylinder 1 43-2 and the inner heating cylinder 2 45-2, and then enters the outer water washing cylinder 61 and the inner water washing cylinder 60. When the decomposed waste gas passes through the water film formed by the spray head 1 60-1, the particles in the waste gas are attached to the water and separated from the waste gas, and fall into the transition water tank 63. At the same time, the pollutant gas molecules in the waste gas that are easily soluble in water are dissolved in the water, fall into the transition water tank 63 with the water, and then flow into the sedimentation chamber 3-1 of the water tank 3 through the bellows 62;

[0194] The waste gas mixed with compressed air and water vapor enters the primary water washing tower 64 through the transition water tank 63, and passes through the water film sprayed horizontally from the primary spray head 64-1. The particulate matter in the waste gas is attached to the water for the second time and separated from the waste gas, and falls into the transition water tank 63. At the same time, the pollutant gas molecules in the waste gas that are easily soluble in water are dissolved in water for the second time, fall into the transition water tank 63 with the water, and then flow into the sedimentation chamber 3-1 of the water tank 3 through the bellows 62;

[0195] The waste gas mixed with compressed air and water vapor enters the secondary water scrubber 65 through the primary water scrubber 64 and passes through the spray water sprayed vertically downward from the secondary spray head 65-1. The particles in the waste gas are attached to the waste gas for the third time by the water and separated from the waste gas. The particles pass through the primary water scrubber 64 and fall into the transition water tank 63. At the same time, the pollutant gas molecules that are easily soluble in water in the waste gas are dissolved in water for the third time, pass through the primary water scrubber 64, fall into the transition water tank 63 with the water, and then flow into the sedimentation chamber 3-1 of the water tank 3 through the bellows 62.

[0196] Step 10: Repeat the operation of step 4 to repeatedly process the exhaust gas, large particles are filtered by the microporous mesh 30-1 on the partition frame 30 in the sedimentation chamber 3-1, and small particles are filtered by the Y-type filter 23-2;

[0197] Step 11: Close the manual valve 6 28-10 and the manual valve 7 28-21, open the pneumatic valve 3 27-2 and the manual valve 5 27-3 on the sewage pipe 27 in sequence, and the water pump 21 pumps the water in the water tank 3 from the water tank outlet 32 ​​through the water pipe 1 22 and the Y-type filter 23-2 on the water pipe 2 23, and then discharges through the tee 1 24 and the sewage pipe 27 and discharges into the sewage purification tank;

[0198] Step 12: Fill the water tank 3 with new water to prepare for the next work.

[0199] The specific working method is described below with specific embodiments:

[0200] Embodiment 1:

[0201] The working process of the electric heating water washing exhaust gas treatment device is as follows:

[0202] Step 1: Open the manual valve 1 20-1, the pneumatic valve 1 20-3, the pneumatic valve 2 20-4 and the manual valve 2 20-5 on the water inlet pipe 20 in sequence, and then the external water source enters the water tank 3 through the total flow meter 20-6 and the water tank inlet 31, and observe the water volume entering the water tank 3 through the total flow meter 20-6;

[0203] Step 2: Manually close the manual valve 1 20-1 and the manual valve 2 20-5 or automatically close the pneumatic valve 1 20-3 and the pneumatic valve 2 20-4 through the liquid level gauge 38 provided on the side wall of the purification chamber 3-2 of the water tank 3; under normal circumstances, the manual valve 1 20-1 and the manual valve 2 20-5 are in the normally open state, realizing the coexistence of the automatic control of the pneumatic valve and the manual control in case of emergency failure;

[0204] Step 3: Open the manual valve 3 22-1 on the water pipe 1 22, open the manual valve 4 23-1 on the water pipe 2 23, open the manual valve 6 28-10 on the first branch pipe 28-1, open the manual valve 7 28-21 on the second branch pipe 28-2, and close the pneumatic valve 3 27-2 and the manual valve 5 27-3 on the sewage pipe 27;

[0205] Step 4: Start the water pump 21. The water pump 21 pumps the water in the water tank 3 out of the water tank outlet 32, passes through the water pipe 1 22, and then passes through the Y-type filter 23-2 on the water pipe 2 23, and then enters the water pipe 3 25 through the tee 1 24, passes through the condensation system 5, and then enters the tee 3 26-1 through the water pipe 4 26. One side of the water enters the first diversion pipe 28-1, and the other side of the water enters the second diversion pipe 28-2;

[0206] The water entering the first branch pipe 28-1 passes through the manual valve 6 28-10 and the branch flow meter 1 28-11 to reach the tee 5 28-12, one way directly enters the double hose joint 280, and then communicates with the first-level sprinkler head 64-1 and the second-level sprinkler head 65-1 through two hoses, and the other way passes through the tee 6 28-13 to enter the two double hose joints 280, and then communicates with the sprinkler head 1 60-1 through multiple hoses.

[0207] The water entering the second shunt pipe 28-2 directly enters the double hose joint 280 through the shunt flow meter 28-20 and the manual valve 7 28-21, and then communicates with the second sprinkler head 61-2 through two hoses, thereby realizing the continuous circulation and spraying operation of the water.

[0208] Step 5: Start the condensation system 5, open the manual valve eight 50-1 and the manual valve nine 50-2 on the condensation water inlet pipe 50, open the manual valve ten 52-1 and the manual valve eleven 52-2 on the condensation water outlet pipe 52, and the condensation water enters the condenser 51 from the condensation water inlet pipe 50 to cool the water flowing through the pump pipe system 2, and then the condensation water flows out from the condensation water outlet pipe 52; the cooling operation of the sprayed water is realized, so as to achieve the purpose of reducing the exhaust gas temperature;

[0209] Step 6: Start the heating oxidation system 4, firstly, energize and heat the internal electric heating tube 1 43-3 and electric heating tube 2 45-3 through the power line insertion interface 1 43-12 on the outer protective tube 1 43-1 and the power line insertion interface 2 45-12 on the outer protective tube 2 45-1, and then obtain the temperature through the temperature sensors installed at the thermocouple sensor installation interface 1 43-11 on the outer protective tube 1 43-1 and the thermocouple sensor installation interface 2 45-11 on the outer protective tube 2 45-1;

[0210] Step 7: When the temperature of the outer wall of the inner heating cylinder 1 43-2 and the inner heating cylinder 2 45-2 reaches 650°C, compressed air is introduced into the inner heating cylinder 1 43-2 through the compressed air inlet 1 43-10 on the outer protective cylinder 1 43-1, and compressed air is introduced into the inner heating cylinder 2 45-2 through the compressed air inlet 2 45-10 on the outer protective cylinder 2 45-1;

[0211] Step eight: the compressed air passing through the compressed air flow sensor 46-1 and the water vapor of the water vapor flow sensor 46-2 are mixed in the mixed gas input pipe 46, and then respectively pass through the gas interface 1 41-2 into the annular groove 41-4 formed between the support flange 41-3 and the air inlet cylinder 41, and then go up into the inner heating cylinder 1 43-2, enter the inner heating cylinder 2 45-2 through the connecting cylinder 44, and then pass through the outer water washing cylinder 61, the inner water washing cylinder 60, the transition water tank 63, the primary water washing tower 64, the secondary water washing tower 65 and the tertiary water washing tower 66 into the atmosphere in sequence; the whole exhaust gas treatment device is in a high temperature and high humidity environment;

[0212] Step nine: open the two-way reversing valve 42-1, so that the air inlet interface 42-10 and the air outlet interface 1 42-11 are connected, and the exhaust gas enters the support flange 41-3 from the exhaust gas inlet pipe 42 through the exhaust gas inlet port 41-1 on the air inlet cylinder 41, and then goes up to enter the inner heating cylinder 1 43-2 in the first heating cylinder group 43, and then enters the inner heating cylinder 2 45-2 in the second heating cylinder group 45 through the connecting cylinder 44. The first heating cylinder group 43 and the second heating cylinder group 45 are connected in series in a U-shaped circuitous manner through the connecting cylinder 44, and dual-chamber thermal oxidation is adopted. The exhaust gas stays in the reaction chamber for a long time and is sufficiently oxidized, so that the exhaust gas is treated more completely, and then enters the exhaust pipe, which has a better exhaust gas treatment effect and a relatively high exhaust gas treatment efficiency, with a treatment capacity of 600L / min; the exhaust gas in the inner heating cylinder 1 43- 2 and the inner heating cylinder 2 45-2, mixed with the mixed gas of compressed air and water vapor introduced from the gas interface 1 41-2, and mixed with the compressed air introduced from the compressed air inlet 1 43-10 and the compressed air inlet 2 45-10, to ensure the content of oxygen molecules in the inner heating cylinder 1 43-2 and the inner heating cylinder 2 45-2; the exhaust gas is oxidized and decomposed in the high temperature and high humidity environment of the inner heating cylinder 1 43-2 and the inner heating cylinder 2 45-2, and then enters the outer water washing cylinder 61 and the inner water washing cylinder 60. When the decomposed exhaust gas passes through the water film formed by the spray head 1 60-1, the particulate matter in the exhaust gas is attached to the waste by the water, and at the same time, the pollutant gas molecules that are easily soluble in water in the exhaust gas are dissolved in the water, fall into the transition water tank 63 with the water, and then flow into the sedimentation chamber 3-1 of the water tank 3 through the bellows 62;

[0213] The water film sprayed horizontally from the first-level spray head 64-1 of the first-level water washing tower 64 passes through, and the particulate matter in the exhaust gas is attached to the water for the second time and separated from the exhaust gas, and falls into the transition water tank 63. At the same time, the pollutant gas molecules in the exhaust gas that are easily soluble in water are dissolved in the water for the second time, fall into the transition water tank 63 with the water, and then flow into the sedimentation chamber 3-1 of the water tank 3 through the bellows 62;

[0214] The waste gas mixed with compressed air and water vapor enters the secondary water washing tower 65 through the primary water washing tower 64 and passes through the spray water sprayed vertically downward from the secondary spray head 65-1. The particulate matter in the waste gas is attached to the water for the third time and separated from the waste gas, passes through the primary water washing tower 64, and falls into the transition water tank 63. At the same time, the pollutant gas molecules that are easily soluble in water in the waste gas are dissolved in water for the third time, pass through the primary water washing tower 64, fall into the transition water tank 63 with water, and then flow into the sedimentation chamber 3-1 of the water tank 3 through the bellows 62. Compared with the traditional method of washing the oxidized waste gas through a water pool, the oxidized waste gas of the present invention passes through the vortex of the air flow at the water film position formed by the spray head 60-1, the waste gas is cut off by the air flow at the water film position sprayed horizontally by the primary spray head 64-1, and the waste gas passes through the spray water sprayed vertically downward by the secondary spray head 65-1 in a reverse direction, which does not affect the air flow passing speed, that is, the washing effect is guaranteed, and the washing efficiency is also guaranteed;

[0215] Step 10: Repeat the operation of step 4 to repeatedly process the exhaust gas, large particles are filtered by the microporous mesh 30-1 on the partition frame 30 in the sedimentation chamber 3-1, and small particles are filtered by the Y-type filter 23-2;

[0216] Step 11: Close the manual valve 6 28-10 and the manual valve 7 28-21, open the pneumatic valve 3 27-2 and the manual valve 5 27-3 on the sewage pipe 27 in sequence, and the water pump 21 pumps the water in the water tank 3 from the water tank outlet 32 ​​through the water pipe 1 22 and the Y-type filter 23-2 on the water pipe 2 23, and then discharges through the tee 1 24 and the sewage pipe 27 and discharges into the sewage purification tank;

[0217] Step 12: Fill the water tank 3 with new water to prepare for the next work.

[0218] Through the above steps 1 to 12, the particulate matter in the exhaust gas and the polluting gas molecules that are easily soluble in water are sprayed, attached, collected and settled for multiple times, with good decontamination effect and high decontamination efficiency.

[0219] Embodiment 2:

[0220] The working principle of the pump pipe system 2 in the electric heating water washing type waste gas treatment device is:

[0221] Step 1: Open the manual valve 1 20-1, the pneumatic valve 1 20-3, the pneumatic valve 2 20-4 and the manual valve 2 20-5 on the water inlet pipe 20 in sequence, and then the external water source enters the water tank 3 through the total flow meter 20-6 and the water tank inlet 31, and observe the water volume entering the water tank 3 through the total flow meter 20-6;

[0222] Step 2: manually close the manual valve 1 20-1 and the manual valve 2 20-5 or automatically close the pneumatic valve 1 20-3 and the pneumatic valve 2 20-4 through the liquid level gauge 38 provided on the side wall of the purification chamber 3-2 of the water tank 3;

[0223] Step 3: Open the manual valve 3 22-1 on the water pipe 1 22, open the manual valve 4 23-1 on the water pipe 2 23, open the manual valve 6 28-10 on the first branch pipe 28-1, open the manual valve 7 28-21 on the second branch pipe 28-2, and close the pneumatic valve 3 27-2 and the manual valve 5 27-3 on the sewage pipe 27;

[0224] Step 4: Start the water pump 21. The water pump 21 pumps the water in the water tank 3 out of the water tank outlet 32, passes through the water pipe 1 22, and then passes through the Y-type filter 23-2 on the water pipe 2 23, and then enters the water pipe 3 25 through the tee 1 24, passes through the condensation system 5, and then enters the tee 3 26-1 through the water pipe 4 26. One side of the water enters the first diversion pipe 28-1, and the other side of the water enters the second diversion pipe 28-2;

[0225] The water entering the first branch pipe 28-1 passes through the manual valve 6 28-10 and the branch flow meter 1 28-11 to reach the tee 5 28-12, one way directly enters the double hose joint 280, and then communicates with the first-level sprinkler head 64-1 and the second-level sprinkler head 65-1 through two hoses, and the other way passes through the tee 6 28-13 to enter the two double hose joints 280, and then communicates with the sprinkler head 1 60-1 through multiple hoses.

[0226] The water entering the second flow distribution pipe 28-2 directly enters the double hose joint 280 through the flow distribution meter 28-20 and the manual valve 7 28-21, and then communicates with the second sprinkler head 61-2 through two hoses respectively;

[0227] Through the pump pipe system 2, on the one hand, a new clean water source is introduced into the water tank 3 or the water tank 3 is replaced with a new clean water source. On the other hand, the water in the water tank 3 is repeatedly sprayed, attached and cooled until the sprayed water can no longer attach particulate matter and dissolve polluting gas molecules that are easily soluble in water, thereby saving water resources.

[0228] Embodiment 3:

[0229] In the electrically heated water-washing type waste gas treatment device, a partition frame 30 is provided in the middle of the water tank 3, and the partition frame 30 divides the water tank 3 into a sedimentation chamber 3-1 and a purification chamber 3-2. The sedimentation chamber 3-1 is used to precipitate particulate matter flowing in from the transition water tank 63; a microporous mesh 30-1 is provided on the partition frame 30, and under the suction action of the water pump 21, particulate matter in the sedimentation chamber 3-1 is prevented from entering the purification chamber 3-2, and blockage of the narrow spray ports on the spray head 1 60-1, the spray head 2 61-2, the first-level spray head 64-1 and the second-level spray head 65-1 is avoided, thereby ensuring the normal operation of the waste gas treatment device.

[0230] A water tank inlet 31 is provided at the upper end of the side wall of the purification chamber 3-2, and the water tank inlet 31 is connected to the end of the water inlet pipe 20, and a water tank outlet 32 ​​is provided at the lower end of the side wall of the purification chamber 3-2, and the water tank outlet 32 ​​is connected to the end of the water pipe 22, thereby realizing the connection with the external water source and the water pump 21; a cleaning water inlet 33 is provided at the upper end of the sedimentation chamber 3-1 of the water tank 3, thereby ensuring the collection and circulation of the spray water for spraying; an observation window 34 is provided at the upper end of the water tank 3, thereby facilitating the observation of the blockage of particles on the microporous mesh 30-1; a thermocouple 35 is provided at the upper end of the water tank 3, thereby monitoring the spray water collected in the water tank 3 in real time. The temperature of the water; a pipe joint 36 is provided at the upper corner of the sedimentation chamber 3-1 of the water tank 3, which ensures that the sedimentation chamber 3-1 and the purification chamber 3-2 in the water tank 3 are connected to the outside atmosphere, ensuring the suction operation of the water pump 21; a pipe joint 37 is provided on the side wall of the purification chamber 3-2 of the water tank 3, and air is blown into the purification chamber 3-2 through the pipe joint 37, so that the particles attached to the microporous mesh 30-1 by the suction action of the water pump 21 are blown into the sedimentation chamber 3-1 to avoid blocking the passability of the spray water; a liquid level gauge 38 is provided on the side wall of the purification chamber 3-2 of the water tank 3 to observe the liquid level in the water tank 3 to avoid excessive water entering the water tank 3.

[0231] Embodiment 4:

[0232] In the electrically heated water-washing exhaust gas treatment device, a plurality of exhaust gas inlets 41-1 and a gas interface 41-2 are evenly arranged on the outer wall of the air inlet cylinder 41, the exhaust gas inlet pipe 42 is communicated with the exhaust gas inlet 41-1, the mixed gas input pipe 46 is communicated with the gas interface 41-2, and the mixed gas input pipe 46 is connected to a compressed air flow sensor 46-1 and a water vapor flow sensor 46-2.

[0233] A supporting flange 41-3 is provided inside the air intake cylinder 41, and an annular groove 41-4 is formed between the supporting flange 41-3 and the air intake cylinder 41, and the gas interface 41-2 is communicated with the annular groove 41-4; the exhaust gas inlet port 41-1 directly passes into the supporting flange 41-3 in the air intake cylinder 41, and then the mixed gas of compressed air and water vapor input from the mixed gas input pipe 46 passes into the annular groove 41-4 from the gas interface 41-2, so that the air pressure in the annular groove 41-4 is greater than the air pressure in the supporting flange 41-3, which ensures that the exhaust gas will not stay in the annular groove 41-4 on the one hand, and ensures that the mixed gas of compressed air and water vapor is fully mixed with the exhaust gas on the other hand.

[0234] A two-way reversing valve 42-1 is provided on the exhaust gas inlet pipe 42, and an air inlet interface 42-10, an air outlet interface 1 42-11 and an air outlet interface 2 42-12 are provided on the two-way reversing valve 42-1. The air inlet interface 42-10 is connected to the exhaust gas source, the air outlet interface 1 42-11 is connected to the exhaust gas inlet pipe 42, and the air outlet interface 2 42-12 is connected to the air inlet interface 42-10 of the two-way reversing valve 42-1 of the adjacent electrically heated water-washing exhaust gas treatment device. When the exhaust gas treatment device fails, the two-way reversing valve 42-1 connects the air inlet interface 42-10 with the air outlet interface 2 42-12, so that the exhaust gas is switched to the spare exhaust gas treatment device for further treatment. When the exhaust gas is disassembled for maintenance, the exhaust gas will not be discharged into the atmosphere to cause pollution, and will not cause harm to the maintenance personnel.

[0235] Embodiment 5:

[0236] In the electrically heated water-washing exhaust gas treatment device, a plurality of spray heads 60-1 are evenly arranged on the outer wall of the inner water-washing cylinder 60. The installation direction of the plurality of spray heads 60-1 is to be inserted along the chord length direction of the cross-sectional circle of the inner water-washing cylinder 60, and to form an angle of 30°-60° with the horizontal plane; so that the spray water sprayed by the plurality of spray heads 60-1 presents a vortex inverted cone, which does not affect the exhaust gas flow speed, thereby ensuring the washing effect and the washing efficiency.

[0237] The outer wall of the outer water washing cylinder 61 is symmetrically provided with a second spray head 61-2, and the installation direction of the symmetrically arranged second spray head 61-2 is inserted along the chord length direction of the cross-sectional circle of the outer water washing cylinder 61, and forms an angle of 10°-20° with the horizontal plane; the inner water washing cylinder 60 is inserted into the outer water washing cylinder 61, and a water trough 60-61 is formed between the upper end of the inner water washing cylinder 60 and the outer water washing cylinder 61, and the second spray head 61-2 is connected to the water trough 60-61; so that the spray water sprayed by the two second spray heads 61-2 rotates in the water trough 60-61, and then overflows the upper edge of the inner water washing cylinder 60, and flows into the transition water tank 63 from the inner wall of the inner water washing cylinder 60, thereby preventing the particles attached by the spray water from adhering to the inner wall of the inner water washing cylinder 60.

[0238] The primary water washing tower 64 is provided with a primary spray head 64-1, which sprays horizontally to form a horizontal water film. The exhaust gas passes through the horizontally sprayed water film, and the particulate matter in the exhaust gas is attached to the water for a second time and separated from the exhaust gas, and falls into the transition water tank 63. At the same time, the pollutant gas molecules that are easily soluble in water in the exhaust gas are dissolved in water for a second time; a blowing port 64-2 is symmetrically provided at the primary spray head 64-1, so that the blowing port 64-2 blows air downward to blow the sprayed atomized water vapor downward to make it fall into the transition water tank 63 and then enter the water tank 3, so as to avoid taking the water vapor generated when the spray water is sprayed out of the water washing system 6, thereby ensuring that the water capacity in the water tank 3 is not reduced as much as possible, avoiding the operation of adding water to the water tank 3 during the operation of the equipment, reducing the equipment operation process, and simplifying the operation.

[0239] The secondary water scrubber 65 is provided with a secondary spray head 65-1, which sprays water vertically downward. The exhaust gas passes through the spray water sprayed vertically downward in reverse direction. The particles in the exhaust gas are attached to the water for the third time and separated from the exhaust gas. The particles pass through the primary water scrubber 64 and fall into the transition water tank 63. At the same time, the pollutant gas molecules that are easily soluble in water in the exhaust gas are dissolved in water for the third time, pass through the primary water scrubber 64, fall into the transition water tank 63 with the water, and then pass through the bellows 6. 2 flows into the sedimentation chamber 3-1 of the water tank 3; a second blowing port 65-2 is provided at a symmetrical position of the secondary spray head 65-1, so that the second blowing port 65-2 blows air downward, blows the spray atomized water vapor downward, makes it fall into the transition water tank 63 and then enters the water tank 3, avoids the water vapor generated when the spray water is sprayed out of the water washing system 6, ensures that the water capacity in the water tank 3 is not reduced as much as possible, avoids the operation of adding water to the water tank 3 during the operation of the equipment, reduces the equipment operation process, and is simple to operate.

[0240] A thermocouple three 65-3 is provided on one side above the secondary spray head 65-1 to monitor the exhaust temperature of the secondary water washing tower 65 in real time; a gas interface three 65-4 is provided on the other side above the secondary spray head 65-1, and air is blown into the secondary spray head 65-1 through the gas interface three 65-4 to prevent the secondary spray head 65-1 from being blocked.

[0241] The transition water tank 63 is provided with a thermocouple 2 63-1, and the transition water tank 63 is a wedge-shaped structure with one end larger and the other end smaller, and one side of the bellows 62 is larger and the side of the primary water washing tower 64 is smaller, thereby ensuring that the spray water flowing down from the inner water washing drum 60, the primary water washing tower 64 and the secondary water washing tower 65 can flow to one end of the transition water tank 63 under the action of gravity, and then flow into the water tank 3 through the bellows 62.

[0242] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above-mentioned concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An electrically heated water-washing type waste gas treatment device, characterized in that: The invention comprises a base plate (1), a pump pipe system (2), a water tank (3), a heating oxidation system (4), a condensation system (5) and a water washing system (6), wherein the pump pipe system (2) is fixedly connected to the base plate (1), the pump pipe system (2) is in communication with the water tank (3), the pump pipe system (2) passes through the condensation system (5), the water tank (3) is fixedly connected to the base plate (1), the heating oxidation system (4) is arranged directly above the base plate (1) and is connected to the water washing system (6), and the pump pipe system (2) and the water washing system (6) are connected via a hose; The pump-pipe system (2) is composed of a water inlet pipe (20), a water pump (21), a water pipe 1 (22), a water pipe 2 (23), a three-way pipe 1 (24), a water pipe 3 (25), a water pipe 4 (26), a sewage pipe (27) and a diversion system (28). One end of the water inlet pipe (20) is connected to an external water source, and the other end is connected to the upper end of the water tank (3). The water inlet of the water pump (21) is connected to one end of the water pipe 1 (22), and the other end of the water pipe 1 (22) is connected to the lower end of the water tank (3). The outlet of the water pump (21) is connected to the water source. The water inlet is connected to one end of water pipe 2 (23), the other end of water pipe 2 (23) is connected to tee 1 (24), the upper end of water pipe 3 (25) is connected to tee 1 (24), the lower end of water pipe 3 (25) is connected to the condensation system (5), the lower end of water pipe 4 (26) is connected to the condensation system (5), and water pipe 3 (25) and water pipe 4 (26) are connected in the condensation system (5), the upper end of water pipe 4 (26) is connected to the diversion system (28), and the lower end of the sewage pipe (27) is connected to tee 1 (24); A partition frame (30) is provided in the middle of the water tank (3), the partition frame (30) divides the water tank (3) into a sedimentation chamber (3-1) and a purification chamber (3-2), and a microporous mesh (30-1) is provided on the partition frame (30); A water tank water inlet (31) is provided at the upper end of the side wall of the purification chamber (3-2), and the water tank water inlet (31) is connected to the end of the water inlet pipe (20); a water tank water outlet (32) is provided at the lower end of the side wall of the purification chamber (3-2), and the water tank water outlet (32) is connected to the end of the water pipe (22); The upper end of the sedimentation chamber (3-1) of the water tank (3) is provided with a cleaning water inlet (33); The upper end of the water tank (3) is provided with an observation window (34) and a thermocouple (35); A pipe joint 1 (36) is provided at the corner of the upper end of the sedimentation chamber (3-1) of the water tank (3), and a pipe joint 2 (37) and a liquid level meter (38) are provided on the side wall of the purification chamber (3-2) of the water tank (3); The heating oxidation system (4) is composed of a rack (40), an air intake cylinder (41), an exhaust gas intake pipe (42), a first heating cylinder group (43), a connecting cylinder (44), a second heating cylinder group (45) and a mixed gas input pipe (46). The rack (40) is provided with two groups. The first heating cylinder group (43) and the second heating cylinder group (45) are connected in series in a U-shaped circuitous manner through the connecting cylinder (44). The air intake cylinder (41) is connected to the lower end of the first heating cylinder group (43). A plurality of exhaust gas inlet ports (41-1) and gas interface 1 (41-2) are evenly arranged on the outer wall of the air inlet cylinder (41); the exhaust gas inlet pipe (42) is connected to the exhaust gas inlet port (41-1); the mixed gas input pipe (46) is connected to the gas interface 1 (41-2); and the mixed gas input pipe (46) is connected to a compressed air flow sensor (46-1) and a water vapor flow sensor (46-2); A supporting flange (41-3) is provided inside the air inlet cylinder (41), and an annular groove (41-4) is formed between the supporting flange (41-3) and the air inlet cylinder (41), and the gas interface 1 (41-2) is in communication with the annular groove (41-4); The waste gas inlet pipe (42) is provided with a two-way reversing valve (42-1), and the two-way reversing valve (42-1) is provided with an inlet interface (42-10), a first outlet interface (42-11) and a second outlet interface (42-12), wherein the inlet interface (42-10) is connected to a waste gas source, the first outlet interface (42-11) is connected to the waste gas inlet pipe (42), and the second outlet interface (42-12) is connected to the inlet interface (42-10) of the two-way reversing valve (42-1) of the adjacent electric heating water-washing waste gas treatment device; The condensation system (5) is composed of a condensation water inlet pipe (50), a condenser (51) and a condensation water outlet pipe (52), wherein the condensation water inlet pipe (50) is connected to the condenser (51), and the condensation water outlet pipe (52) is connected to the condenser (51); The condensed water inlet pipe (50) is provided with a manual valve eight (50-1) and a manual valve nine (50-2) in sequence along the water inlet direction; the condensed water outlet pipe (52) is provided with a manual valve eleven (52-2) and a manual valve ten (52-1) in sequence along the water outlet direction; The water washing system (6) is composed of an inner water washing cylinder (60), an outer water washing cylinder (61), a bellows (62), a transition water tank (63), a primary water washing tower (64), a secondary water washing tower (65) and a tertiary water washing tower (66). The inner water washing cylinder (60) is inserted into the outer water washing cylinder (61). The lower end of the inner water washing cylinder (60) is connected to the transition water tank (63). The upper end of the outer water washing cylinder (61) is connected to the lower end of the second heating cylinder group (45). The lower end of the bellows (62) is connected to the water tank (3). The lower end of the primary water washing tower (64) is connected to the transition water tank (63). The lower end of the secondary water washing tower (65) is connected to the upper end of the primary water washing tower (64). The lower end of the tertiary water washing tower (66) is connected to the upper end of the secondary water washing tower (65). A plurality of spray heads (60-1) are evenly arranged on the outer wall of the inner water washing cylinder (60); The outer wall of the outer water washing cylinder (61) is symmetrically provided with two spray heads (61-1); A water tank (60-61) is formed between the upper end of the inner water washing cylinder (60) and the outer water washing cylinder (61), and the second spray head (61-1) is connected to the water tank (60-61); The primary water washing tower (64) is provided with a primary spray head (64-1), and a blowing port 1 (64-2) is provided at a symmetrical position of the primary spray head (64-1); The secondary water washing tower (65) is provided with a secondary spray head (65-1), a second air blowing port (65-2) is provided at a symmetrical position of the secondary spray head (65-1), a third thermocouple (65-3) is provided on one side above the secondary spray head (65-1), and a third gas interface (65-4) is provided on the other side above the secondary spray head (65-1); The installation direction of the plurality of spray heads (60-1) is to be inserted along the chord length direction of the cross-sectional circle of the inner water washing cylinder (60), and to form an angle of 30°-60° with the horizontal plane; The installation direction of the symmetrically arranged spray head 2 (61-1) is to be inserted along the chord length direction of the cross-section circle of the outer water washing cylinder (61), and to form an angle of 10°-20° with the horizontal plane; The transition water tank (63) is provided with a second thermocouple (63-1), and the transition water tank (63) is a wedge-shaped structure with one end larger and the other end smaller, and one side of the bellows (62) is larger and one side of the primary water washing tower (64) is smaller; The first-level spray head (64-1) sprays horizontally, and the second-level spray head (65-1) sprays vertically downward.

2. The electrically heated water-washing exhaust gas treatment device according to claim 1 is characterized in that: The water inlet pipe (20) is provided with a manual valve 1 (20-1), a tee valve 2 (20-2), a pneumatic valve 1 (20-3), a pneumatic valve 2 (20-4), a manual valve 2 (20-5) and a total flow meter (20-6) in sequence along the water inlet direction; the tee valve 2 (20-2) is externally connected to a water vapor system; The water pipe one (22) is provided with a manual valve three (22-1); The water pipe 2 (23) is provided with a manual valve 4 (23-1) and a Y-type filter (23-2); The upper end of the water pipe 4 (26) is provided with a three-way connection 3 (26-1); The sewage pipe (27) is provided with a three-way valve (27-1), a pneumatic valve (27-2) and a manual valve (27-3) in sequence along the drainage direction.

3. The electrically heated water-washing exhaust gas treatment device according to claim 1 is characterized in that: The flow distribution system (28) comprises a first flow distribution pipe (28-1) and a second flow distribution pipe (28-2), and the first flow distribution pipe (28-1) and the second flow distribution pipe (28-2) are respectively connected to the three-way valve (26-1); The first flow diversion pipe (28-1) is provided with a manual valve six (28-10), the end of the first flow diversion pipe (28-1) is connected to a flow diversion meter one (28-11), a three-way five (28-12) is provided at the water outlet of the flow diversion meter one (28-11), one end of the three-way five (28-12) is connected to a double hose joint (280), the other end of the three-way five (28-12) is connected to a three-way six (28-13), and the two water outlet ends of the three-way six (28-13) are respectively connected to double hose joints (280); The end of the second flow diversion pipe (28-2) is connected to a second flow diversion meter (28-20), a manual valve (28-21) is provided at the water outlet of the second flow diversion meter (28-20), and a double hose joint (280) is provided at the water outlet of the manual valve (28-21).

4. The electrically heated water-washing exhaust gas treatment device according to claim 1 is characterized in that: The first heating cylinder group (43) is composed of an outer protective cylinder (43-1) and an inner heating cylinder (43-2), wherein the inner heating cylinder (43-2) is arranged at the center of the outer protective cylinder (43-1) and is fixedly installed at both ends by flanges; The lower end of the outer wall of the outer protective tube (43-1) is provided with a compressed air inlet (43-10), the middle of the outer wall of the outer protective tube (43-1) is provided with a thermocouple sensor installation port (43-11), the upper part of the outer wall of the outer protective tube (43-1) is provided with a power line insertion port (43-12), and a fixed installation seat (43-13) is provided between the thermocouple sensor installation port (43-11) and the power line insertion port (43-12), the fixed installation seat (43-13) is connected to the bracket (40), and an electric heating tube (43-3) is provided on the inner side of the outer protective tube (43-1) outside the inner heating tube (43-2); The second heating cylinder group (45) is composed of an outer protective cylinder 2 (45-1) and an inner heating cylinder 2 (45-2), wherein the inner heating cylinder 2 (45-2) is arranged at the center of the outer protective cylinder 2 (45-1) and is fixedly installed at both ends by flanges; The lower end of the outer wall of the second outer protective tube (45-1) is provided with a compressed air inlet port (45-10), the middle part of the outer wall of the second outer protective tube (45-1) is provided with a thermocouple sensor installation port (45-11), the upper part of the outer wall of the second outer protective tube (45-1) is provided with a power line threading interface (45-12), and a fixed mounting seat (45-13) is provided between the thermocouple sensor installation port (45-11) and the power line threading interface (45-12), the fixed mounting seat (45-13) is connected to the bracket (40), and an electric heating tube (45-3) is provided on the inner side of the second outer protective tube (45-1) outside the second inner heating tube (45-2).

5. A working method of an electrically heated water-washing exhaust gas treatment device, characterized in that: The specific steps include: Step 1: Open the manual valve 1 (20-1), the pneumatic valve 1 (20-3), the pneumatic valve 2 (20-4) and the manual valve 2 (20-5) on the water inlet pipe (20) in sequence, and then the external water source enters the water tank (3) through the total flow meter (20-6) and the water tank inlet (31), and observe the amount of water entering the water tank (3) through the total flow meter (20-6); Step 2: manually closing the manual valve 1 (20-1) and the manual valve 2 (20-5) or automatically closing the pneumatic valve 1 (20-3) and the pneumatic valve 2 (20-4) through a liquid level gauge (38) provided on the side wall of the purification chamber (3-2) of the water tank (3); Step 3: Open the manual valve 3 (22-1) on the water pipe 1 (22), open the manual valve 4 (23-1) on the water pipe 2 (23), open the manual valve 6 (28-10) on the first branch pipe (28-1), open the manual valve 7 (28-21) on the second branch pipe (28-2), and close the pneumatic valve 3 (27-2) and the manual valve 5 (27-3) on the sewage pipe (27); Step 4: Start the water pump (21), the water pump (21) pumps the water in the water tank (3) out of the water tank outlet (32), passes through the water pipe 1 (22), passes through the Y-type filter (23-2) on the water pipe 2 (23), then enters the water pipe 3 (25) through the tee 1 (24), passes through the condensation system (5), and then enters the tee 3 (26-1) through the water pipe 4 (26), and enters the first diversion pipe (28-1) on one side and the second diversion pipe (28-2) on the other side; The water entering the first diversion pipe (28-1) passes through the manual valve six (28-10) and the diversion flow meter one (28-11) to reach the three-way five (28-12), one way directly enters the double hose joint (280), and then is respectively connected to the first-stage sprinkler head (64-1) and the second-stage sprinkler head (65-1) through two hoses, and the other way passes through the three-way six (28-13) to enter the two double hose joints (280), and then is respectively connected to the sprinkler head one (60-1) through multiple hoses; The water entering the second flow distribution pipe (28-2) directly enters the double hose joint (280) through the flow distribution meter 2 (28-20) and the manual valve 7 (28-21), and then communicates with the second sprinkler head (61-1) through two hoses respectively; Step 5: Start the condensation system (5), open the manual valve eight (50-1) and the manual valve nine (50-2) on the condensation water inlet pipe (50), open the manual valve ten (52-1) and the manual valve eleven (52-2) on the condensation water outlet pipe (52), and the condensation water enters the condenser (51) from the condensation water inlet pipe (50) to cool the water flowing through the pump pipe system (2), and then the condensation water flows out from the condensation water outlet pipe (52); Step 6: Start the heating oxidation system (4), firstly, energize and heat the internal electric heating tube 1 (43-3) and the electric heating tube 2 (45-3) through the power line insertion interface 1 (43-12) on the outer protective tube 1 (43-1) and the power line insertion interface 2 (45-12) on the outer protective tube 2 (45-1), and then obtain the temperature through the temperature sensors installed at the thermocouple sensor installation interface 1 (43-11) on the outer protective tube 1 (43-1) and the thermocouple sensor installation interface 2 (45-11) on the outer protective tube 2 (45-1); Step 7: When the temperature of the outer wall of the inner heating cylinder 1 (43-2) and the inner heating cylinder 2 (45-2) reaches 650°C, compressed air is introduced into the inner heating cylinder 1 (43-2) through the compressed air inlet 1 (43-10) on the outer protective cylinder 1 (43-1), and compressed air is introduced into the inner heating cylinder 2 (45-2) through the compressed air inlet 2 (45-10) on the outer protective cylinder 2 (45-1); Step 8: The compressed air passing through the compressed air flow sensor (46-1) and the water vapor from the water vapor flow sensor (46-2) are mixed in the mixed gas input pipe (46), and then respectively pass from the gas interface 1 (41-2) into an annular groove (41-4) formed between the support flange (41-3) and the air inlet cylinder (41), and then upwardly enter the inner heating cylinder 1 (43-2), enter the inner heating cylinder 2 (45-2) through the connecting cylinder (44), and then enter the atmosphere through the outer water washing cylinder (61), the inner water washing cylinder (60), the transition water tank (63), the primary water washing tower (64), the secondary water washing tower (65) and the tertiary water washing tower (66); Step 9: Open the two-way reversing valve (42-1) to connect the air inlet interface (42-10) and the air outlet interface 1 (42-11). The exhaust gas enters the support flange (41-3) from the exhaust gas inlet pipe (42) through the exhaust gas inlet port (41-1) on the air inlet cylinder (41), and then enters the inner heating cylinder 1 (43-2) in the first heating cylinder group (43), and then enters the inner heating cylinder 2 (45-2) in the second heating cylinder group (45) through the connecting cylinder (44). The exhaust gas is mixed with the mixed gas of compressed air and water vapor introduced from the gas interface 1 (41-2) in the inner heating cylinder 1 (43-2) and the mixed gas of compressed air and water vapor introduced from the gas interface 1 (41-2). The compressed air introduced from the air inlet port 1 (43-10) and the compressed air inlet port 2 (45-10) is mixed, and the waste gas is oxidized and decomposed in the high temperature and high humidity environment of the inner heating cylinder 1 (43-2) and the inner heating cylinder 2 (45-2), and then enters the outer water washing cylinder (61) and the inner water washing cylinder (60). When the decomposed waste gas passes through the water film formed by the spray head 1 (60-1), the particulate matter in the waste gas is attached to the water and separated from the waste gas, and falls into the transition water tank (63). At the same time, the pollutant gas molecules in the waste gas that are easily soluble in water are dissolved in the water, fall into the transition water tank (63) with the water, and then flow into the sedimentation chamber (3-1) of the water tank (3) through the bellows (62); The waste gas mixed with compressed air and water vapor enters the primary water washing tower (64) through the transition water tank (63) and passes through the water film sprayed horizontally from the primary spray head (64-1). The particulate matter in the waste gas is attached to the water for a second time and separated from the waste gas and falls into the transition water tank (63). At the same time, the pollutant gas molecules in the waste gas that are easily soluble in water are dissolved in the water for a second time and fall into the transition water tank (63) with the water, and then flow into the sedimentation chamber (3-1) of the water tank (3) through the bellows (62); The waste gas mixed with compressed air and water vapor enters the secondary water scrubber (65) through the primary water scrubber (64) and passes through the spray water sprayed vertically downward from the secondary spray head (65-1). The particulate matter in the waste gas is attached to the water for the third time and separated from the waste gas, passes through the primary water scrubber (64), and falls into the transition water tank (63). At the same time, the pollutant gas molecules in the waste gas that are easily soluble in water are dissolved in water for the third time, pass through the primary water scrubber (64), fall into the transition water tank (63) with the water, and then flow into the sedimentation chamber (3-1) of the water tank (3) through the bellows (62); Step 10: Repeat the operation of step 4 to repeatedly process the exhaust gas, large particles are filtered by the microporous mesh (30-1) on the partition frame (30) in the sedimentation chamber (3-1), and small particles are filtered by the Y-type filter (23-2); Step 11: close the manual valve six (28-10) and the manual valve seven (28-21), open the pneumatic valve three (27-2) and the manual valve five (27-3) on the sewage pipe (27) in sequence, and the water pump (21) pumps the water in the water tank (3) from the water tank outlet (32), passes through the water pipe one (22), passes through the Y-type filter (23-2) on the water pipe two (23), and then is discharged through the three-way one (24) and the sewage pipe (27) and discharged into the sewage purification tank; Step 12: Fill the water tank (3) with new water to prepare for the next operation.

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