Circulating water washing type waste gas treatment device

Abstract

The utility model discloses a circulating water washing type waste gas treatment device which comprises a device main body, a water storage tank, an induced draft fan, a spraying chamber and water washing channels, the water storage tank is arranged at the bottom of the device main body, the water washing channels are all arranged in the device main body above the water storage tank, and an absorption net plate is arranged above the water washing channels. An air inlet pipe is mounted on the outer wall of the device main body at the position of the washing channel, the spraying chamber is arranged at the top of the device main body above the washing channel, first spraying pipes are mounted in the spraying chamber, first nozzles are mounted at the bottom ends of the first spraying pipes at equal intervals, and the induced draft fan is mounted at the top end of the device main body. According to the utility model, the flow velocity of the waste gas is delayed, the circulation path of the waste gas is prolonged, the waste gas and the washing liquid are fully reacted, a circulating washing function is adopted, the waste gas can be thoroughly purified, and a water shortage alarm function is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a circulating water washing type waste gas treatment device. Background Art

[0002] Waste gas treatment is a technology that aims to reduce or eliminate harmful substances in waste gas generated by industrial, transportation, household and other activities to protect the environment and human health. Water-soluble waste gas mainly comes from organic waste gas generated in industrial production, chemical, pharmaceutical, coating and other processes, which usually contain organic compounds that are easily soluble in water. The characteristic of water-soluble waste gas is that it easily interacts with water, so that the waste gas can be purified by contact with water. The waste gas enters the water washing device and is fully contacted with the washing liquid. In this process, the water-soluble organic compounds in the waste gas will be absorbed by the washing liquid, thereby achieving the purification of the waste gas.

[0003] The waste gas treatment device usually discharges the gas after washing it with water once. After the waste gas enters the device, the flow rate is fast, the flow path is short, and the contact time with the washing liquid is short, resulting in the waste gas being discharged without being thoroughly treated, causing environmental pollution. Moreover, when the washing liquid is insufficient, it is inconvenient to remind the staff to replenish it in time, so improvement is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to provide a circulating water washing type waste gas treatment device to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circulating water-washing type waste gas treatment device, comprising a device body, a water storage tank, an induced draft fan, a spray chamber and a water washing channel, wherein the water storage tank is arranged at the bottom of the device body, the water washing channels are all arranged inside the device body above the water storage tank, and the water washing channels are connected through an opening, and the water washing channels are connected to the water storage tank through a leakage hole, an absorption mesh plate is installed above the water washing channel, an air intake pipe is installed on the outer wall of the device body at the position of the water washing channel, and the spray chamber The top of the device body is arranged above the water washing channel, and a first spray pipe is installed inside the spray chamber, and the bottom end of the first spray pipe is installed with first nozzles at equal intervals, the induced draft fan is installed at the top of the device body, and the input end of the induced draft fan is connected with the device body through a conduit, and a circulation pipe is installed at the output end of the induced draft fan, and the circulation pipe is connected with the water washing channel, a liquid storage tank is arranged on one side of the device body, and a water pump is installed on the top of the liquid storage tank, and an alarm is installed on the outer wall of one side of the liquid storage tank.

[0006] Preferably, a purification box is provided on the other side of the device body, one end of the purification box is connected to the water storage tank through a first drain pipe, and an activated carbon block is provided inside the purification box.

[0007] Preferably, an exhaust pipe is installed at the top end of the circulation pipe.

[0008] Preferably, a sealing cover is threadedly connected to the other end of the purification box, and a second drain pipe is installed on the outer wall of one side of the sealing cover.

[0009] Preferably, the input end of the water pump extends to the bottom of the liquid storage tank, and the output end of the water pump is connected to the first spray pipe and the second spray pipe respectively.

[0010] Preferably, a water level monitoring hollow tube is fixed to one side of the interior of the liquid storage tank, and a float is arranged inside the water level monitoring hollow tube.

[0011] Preferably, a second spray pipe is installed on the inner wall of the device body at the position of the water washing channel, and second spray heads are installed at equal intervals on the surface of the second spray pipe.

[0012] Preferably, waterproof boxes are fixed on both outer walls of the bottom of the water level monitoring hollow tube, and a laser transmitter and a laser receiver are respectively installed inside the waterproof box.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The water pump extracts the washing liquid in the liquid storage tank and transports it to the first spray pipe and the second spray pipe respectively. The first nozzle and the second nozzle spray the washing liquid. The waste gas enters the water washing channel inside the device body through the air inlet pipe. The washing liquid sprayed by the second nozzle fully contacts the waste gas. The setting of the water washing channel slows down the flow rate of the waste gas and extends the flow path of the waste gas, so that the waste gas and the washing liquid fully react. At the same time, part of the waste gas enters the spray chamber through the absorption mesh plate and reacts with the washing liquid in the spray chamber. The induced draft fan extracts the treated gas through the duct and re-transports it into the water washing channel through the circulation pipe for circulation treatment, thereby completely purifying the waste gas;

[0015] (2) The float inside the water level monitoring hollow tube moves downward as the water level inside the liquid storage tank drops. When the water level drops to a low level, the float moves down to the bottom of the water level monitoring hollow tube and is located between the waterproof boxes, blocking the laser receiver from receiving the laser signal from the laser transmitter, triggering the alarm to sound an alarm, reminding the staff to replenish the detergent in time, thereby realizing the water shortage alarm function. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3 It is a cross-sectional enlarged structural schematic diagram of the liquid storage tank of the utility model;

[0019] Figure 4 This is a schematic diagram of an enlarged side cross-sectional structure of a water level monitoring hollow tube of the utility model;

[0020] Figure 5 It is a schematic diagram of the enlarged cross-sectional structure of the purification box of the utility model.

[0021] In the figure: 1. device body; 2. water storage tank; 3. purification box; 301. activated carbon block; 4. air inlet pipe; 5. circulation pipe; 6. exhaust pipe; 7. induced draft fan; 8. duct; 9. spray chamber; 10. first spray pipe; 11. first nozzle; 12. water pump; 13. liquid storage tank; 14. water washing channel; 15. opening; 16. second spray pipe; 17. second nozzle; 18. absorption mesh plate; 19. leakage hole; 20. water level monitoring hollow tube; 2001. float; 2002. waterproof box; 2003. laser transmitter; 2004. laser receiver; 21. alarm; 22. first drain pipe; 23. sealing cover; 24. second drain pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides an embodiment: a circulating water-washing type waste gas treatment device, comprising a device body 1, a water storage tank 2, an induced draft fan 7, a spray chamber 9 and a water washing channel 14, the water storage tank 2 is arranged at the bottom of the device body 1, the water washing channels 14 are all arranged inside the device body 1 above the water storage tank 2, and the water washing channels 14 are connected through an opening 15, and the water washing channels 14 are connected with the water storage tank 2 through a leakage hole 19, an absorption mesh plate 18 is installed above the water washing channel 14, an air intake pipe 4 is installed on the outer wall of the device body 1 at the position of the water washing channel 14, the spray chamber 9 is arranged at the top of the device body 1 above the water washing channel 14, and a first spray pipe 10 is installed inside the spray chamber 9, and the bottom end of the first spray pipe 10 is installed with a first nozzle 11 at equal intervals;

[0024] The induced draft fan 7 is installed at the top of the device body 1, and the input end of the induced draft fan 7 is connected to the device body 1 through the conduit 8, and the output end of the induced draft fan 7 is installed with a circulation pipe 5, and the circulation pipe 5 is connected with the water washing channel 14. A liquid storage tank 13 is provided on one side of the device body 1, and a water pump 12 is installed on the top of the liquid storage tank 13, and an alarm 21 is installed on the outer wall of one side of the liquid storage tank 13;

[0025] Specifically, the exhaust gas enters the water washing channel 14 inside the device body 1 through the air inlet pipe 4, and the exhaust gas flows from left to right inside the water washing channel 14 through the opening 15, and then enters the spray chamber 9. The washing liquid sprayed by the second nozzle 17 fully contacts the exhaust gas, and the setting of the water washing channel 14 slows down the flow rate of the exhaust gas, prolongs the flow path of the exhaust gas, so that the exhaust gas and the washing liquid fully react. At the same time, part of the exhaust gas enters the spray chamber 9 through the absorption mesh plate 18 and reacts with the washing liquid in the spray chamber 9. In this process, the water-soluble organic compounds in the exhaust gas will be absorbed by the washing liquid, thereby achieving the purification of the exhaust gas.

[0026] The induced draft fan 7 extracts the treated gas through the conduit 8 and re-transports it into the water washing channel 14 through the circulation pipe 5 for circulation treatment, so that the exhaust gas can be thoroughly purified and then discharged through the exhaust pipe 6;

[0027] A purification box 3 is provided on the other side of the device body 1, and one end of the purification box 3 is connected to the water storage tank 2 through the first drain pipe 22, and an activated carbon block 301 is provided inside the purification box 3 to purify the discharged wastewater;

[0028] An exhaust pipe 6 is installed at the top of the circulation pipe 5;

[0029] The other end of the purification box 3 is threadedly connected to a sealing cover 23, and a second drain pipe 24 is installed on the outer wall of one side of the sealing cover 23 to facilitate the removal and replacement of the activated carbon block 301;

[0030] The input end of the water pump 12 extends to the bottom of the liquid storage tank 13, and the output end of the water pump 12 is connected to the first spray pipe 10 and the second spray pipe 16 respectively;

[0031] A water level monitoring hollow tube 20 is fixed to one side of the liquid storage tank 13, and a floating ball 2001 is arranged inside the water level monitoring hollow tube 20;

[0032] A second spray pipe 16 is installed on the inner wall of the device body 1 at the location of the water washing channel 14, and second spray heads 17 are installed on the surface of the second spray pipe 16 at equal intervals;

[0033] A waterproof box 2002 is fixed on both outer walls of the bottom of the water level monitoring hollow tube 20, and a laser transmitter 2003 and a laser receiver 2004 are installed inside the waterproof box 2002 respectively;

[0034] Specifically, when the washing liquid is transported into the device body 1, the float 2001 inside the water level monitoring hollow tube 20 moves downward as the water level inside the liquid storage tank 13 drops. When the water level drops to a low level, the float 2001 moves down to the bottom of the water level monitoring hollow tube 20 and is located between the waterproof box 2002, blocking the laser receiver 2004 from receiving the laser signal of the laser transmitter 2003. At this time, the alarm 21 is triggered to sound an alarm, reminding the staff to replenish the washing liquid in time, thereby realizing the water shortage alarm function.

[0035] When the embodiment of the present application is in use: first, the water pump 12 draws out the washing liquid in the liquid storage tank 13 and transports it to the first spray pipe 10 and the second spray pipe 16 respectively, and the first nozzle 11 and the second nozzle 17 spray the washing liquid, so that water mist is formed in the spray chamber 9 and the water washing channel 14, and a water film is formed in the absorption mesh plate 18. At the same time, the exhaust gas enters the water washing channel 14 inside the device body 1 through the air inlet pipe 4, and the exhaust gas flows from left to right inside the water washing channel 14 through the opening 15. Then it enters the spray chamber 9, the washing liquid sprayed by the second nozzle 17 fully contacts with the waste gas, and the setting of the water washing channel 14 slows down the flow rate of the waste gas, prolongs the flow path of the waste gas, and makes the waste gas fully react with the washing liquid. At the same time, part of the waste gas enters the spray chamber 9 through the absorption mesh plate 18 and reacts with the washing liquid in the spray chamber 9. In this process, the water-soluble organic compounds in the waste gas will be absorbed by the washing liquid, thereby achieving the purification of the waste gas, and the waste water flows into the water storage tank through the leakage hole 19. 2, the induced draft fan 7 extracts the treated gas through the conduit 8 and re-transports it into the water washing channel 14 through the circulation pipe 5 for circulation treatment, so that the exhaust gas can be thoroughly purified and then discharged through the exhaust pipe 6. The waste water inside the water storage tank 2 flows into the purification box 3 through the first drainage pipe 22, and the activated carbon block 301 inside the purification box 3 adsorbs and purifies the waste water, and then discharges it through the second drainage pipe 24. The sealing cover 23 is unscrewed to remove and replace the activated carbon block 301. In addition, when the washing liquid is transported into the device body 1, the float 2001 inside the water level monitoring hollow tube 20 moves down as the water level inside the liquid storage tank 13 drops. When the water level drops to a low level, the float 2001 moves down to the bottom of the water level monitoring hollow tube 20 and is located between the waterproof box 2002, blocking the laser receiver 2004 from receiving the laser signal of the laser transmitter 2003. At this time, the alarm 21 is triggered to sound an alarm, reminding the staff to replenish the washing liquid in time, thereby realizing the water shortage alarm function.

Claims

1. A circulating water washing type waste gas treatment device, characterized in that: The invention comprises a device body (1), a water storage tank (2), an induced draft fan (7), a spray chamber (9) and a water washing channel (14), wherein the water storage tank (2) is arranged at the bottom of the device body (1), the water washing channel (14) is arranged inside the device body (1) above the water storage tank (2), and the water washing channel (14) is connected through an opening (15), and the water washing channel (14) is connected to the water storage tank (2) through a liquid leakage hole (19), an absorption mesh plate (18) is installed above the water washing channel (14), an air intake pipe (4) is installed on the outer wall of the device body (1) at the position of the water washing channel (14), and the spray chamber (9) is arranged on the device body above the water washing channel (14). (1) top, and a first spray pipe (10) is installed inside the spray chamber (9), and the bottom ends of the first spray pipes (10) are all installed with first nozzles (11) at equal intervals, the induced draft fan (7) is installed at the top of the device body (1), and the input end of the induced draft fan (7) is connected to the device body (1) through a conduit (8), and a circulation pipe (5) is installed at the output end of the induced draft fan (7), and the circulation pipe (5) is connected to a water washing channel (14), a liquid storage tank (13) is arranged on one side of the device body (1), and a water pump (12) is installed on the top of the liquid storage tank (13), and an alarm (21) is installed on the outer wall of one side of the liquid storage tank (13).

2. The circulating water washing type waste gas treatment device according to claim 1 is characterized in that: A purification box (3) is provided on the other side of the device body (1), and one end of the purification box (3) is connected to the water storage tank (2) through a first drainage pipe (22), and an activated carbon block (301) is provided inside the purification box (3).

3. The circulating water washing type waste gas treatment device according to claim 1 is characterized in that: An exhaust pipe (6) is installed at the top end of the circulation pipe (5).

4. The circulating water washing type waste gas treatment device according to claim 2 is characterized in that: The other end of the purification box (3) is threadedly connected to a sealing cover (23), and a second drainage pipe (24) is installed on the outer wall of one side of the sealing cover (23).

5. The circulating water washing type waste gas treatment device according to claim 1 is characterized in that: The input end of the water pump (12) extends to the bottom of the liquid storage tank (13), and the output end of the water pump (12) is respectively connected to the first spray pipe (10) and the second spray pipe (16).

6. The circulating water washing type waste gas treatment device according to claim 1 is characterized in that: A water level monitoring hollow tube (20) is fixed to one side of the interior of the liquid storage tank (13), and a floating ball (2001) is arranged inside the water level monitoring hollow tube (20).

7. The circulating water washing type waste gas treatment device according to claim 1 is characterized in that: A second spray pipe (16) is installed on the inner wall of the device body (1) at the position of the water washing channel (14), and second spray heads (17) are installed at equal intervals on the surface of the second spray pipe (16).

8. The circulating water washing type waste gas treatment device according to claim 6 is characterized in that: A waterproof box (2002) is fixed on both outer walls of the bottom of the water level monitoring hollow tube (20), and a laser transmitter (2003) and a laser receiver (2004) are respectively installed inside the waterproof box (2002).

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