Ultra-clean discharging device of heating boiler

Abstract

The utility model relates to the technical field of flue gas purification, in particular to an ultra-clean emission device of a heating boiler, which can recycle heat energy in flue gas while purifying the flue gas, saves energy, and is convenient to use and high in economical efficiency and practicability. Comprising a bottom plate, an induced draft fan, an exhaust pipe and a waste gas absorption tower, the induced draft fan is fixedly installed on the bottom plate, the exhaust pipe is arranged at the output end of the induced draft fan, a valve is arranged on the exhaust pipe, and the waste gas absorption tower is fixedly installed at the right end of the bottom plate and has a waste gas absorption function; the device further comprises a heat recovery mechanism and a filtering mechanism, the heat recovery mechanism and the filtering mechanism are both installed on the bottom plate, the heat recovery mechanism has the heat recovery function, the output end of the exhaust pipe is connected with the heat recovery mechanism, the heat recovery mechanism is connected with the filtering mechanism, and the filtering mechanism is connected with the waste gas absorption tower.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flue gas purification, in particular to a heat supply boiler ultra-clean emission device. BACKGROUND

[0002] The heat supply boiler is a device for heating, which heats water by burning coal, and then the heated water is introduced into the family for use to realize heating. A large amount of high-temperature flue gas is generated in the process of using the heat supply boiler, and the high-temperature flue gas contains a large amount of dust and harmful gases, which need to be purified by a purification device before being discharged to the outside. In the prior art, a flue gas recovery and purification equipment is disclosed in the utility model patent with the patent application number 202222544978.7, which is mainly composed of a filter tank and a purification tank. In use, the high-temperature flue gas is introduced into the filter tank for filtration, and then the filtered flue gas is introduced into the purification tank for purification treatment. The present inventor believes that the following problems exist in the use process: when the high-temperature flue gas is treated, it is only discharged to the outside after being filtered and purified, and the heat in the high-temperature flue gas is not recycled, which wastes the heat energy in the flue gas. SUMMARY

[0003] To solve the above technical problems, the utility model provides a heat supply boiler ultra-clean emission device which can recycle the heat energy in the flue gas during purification, save energy, is convenient to use, and is high in economy and practicability.

[0004] The heat supply boiler ultra-clean emission device of the utility model, including bottom plate, induced draft fan, exhaust pipe and waste gas absorption tower, induced draft fan fixed mounting is in the bottom plate, the output of induced draft fan is provided with exhaust pipe, be provided with valve on the exhaust pipe, waste gas absorption tower fixed mounting is in the right end of bottom plate, waste gas absorption tower has the function of absorbing waste gas;It also includes heat recovery mechanism and filter mechanism, the heat recovery mechanism and filter mechanism are all installed on the bottom plate, the heat recovery mechanism has the function of recovering heat, the output of exhaust pipe is connected with heat recovery mechanism, heat recovery mechanism is connected with filter mechanism, filter mechanism is connected with waste gas absorption tower;When treating the boiler flue gas, the high-temperature flue gas is input into the heat recovery mechanism through the exhaust pipe by the induced draft fan to recover heat, and the flue gas is cooled at the same time. Then the flue gas enters the filter mechanism to filter out dust, and the filtered flue gas is discharged to the outside after being purified in the waste gas absorption tower. The heat energy in the flue gas can be recycled during purification, which saves energy, is convenient to use, and is high in economy and practicability.

[0005] Preferably, the heat recovery mechanism comprises a support frame, a water tank and a heat exchange mechanism, the water tank is fixedly installed on the bottom plate through the support frame, a water cavity is arranged in the water tank, water inlet pipes and water outlet pipes which communicate with the water cavity are arranged on the upper and lower parts of the water tank, valves are arranged on the water inlet pipes and the water outlet pipes, the heat exchange mechanism is installed in the water cavity of the water tank, and the heat exchange mechanism has a heat exchange function; when the flue gas is treated, the water cavity of the water tank is filled with water, the flue gas at high temperature is conveyed into the heat exchange mechanism through the exhaust pipe by the induced draft fan, then the flue gas at high temperature exchanges heat with the water in the water cavity of the water tank through the heat exchange mechanism, and the water is heated; the water in the water cavity of the water tank can be taken out by people and used for bathing or heating, and the convenience is improved.

[0006] Preferably, the heat exchange mechanism comprises a disc A, a disc B, a plurality of heat exchange pipes, a gas conveying pipe and a blowdown pipe, the disc A and the disc B are fixedly installed on the upper and lower parts of the water cavity of the water tank respectively, cavities are arranged in the disc A and the disc B respectively, the output end of the exhaust pipe communicates with the cavity of the disc A, the upper and lower ends of the plurality of heat exchange pipes respectively communicate with the cavity of the disc B and the cavity of the disc A, the left end of the gas conveying pipe communicates with the cavity of the disc B, the output end of the gas conveying pipe communicates with the filtering mechanism, a valve is arranged on the gas conveying pipe, the upper end of the blowdown pipe communicates with the cavity of the disc A, the lower end of the blowdown pipe is located below the water tank, and a valve is arranged on the blowdown pipe; when the flue gas is heat exchanged, the induced draft fan is turned on, the flue gas at high temperature enters the disc A through the exhaust pipe, then the flue gas enters the plurality of heat exchange pipes through the disc A, the flue gas at high temperature exchanges heat with the water in the water cavity of the water tank through the side walls of the plurality of heat exchange pipes, the water in the water cavity is heated, then the flue gas is discharged into the filtering mechanism through the disc B and the gas conveying pipe for continuous treatment; when the water in the water cavity of the water tank is heated to a suitable temperature, the water in the water cavity can be replaced.

[0007] Preferably, the filtering mechanism comprises a filter cylinder, two groups of filter plates and an air outlet pipe, a support is arranged on the filter cylinder, the filter cylinder is fixedly installed on the blowdown pipe through the support, a filter cavity is arranged in the filter cylinder, the two groups of filter plates are fixedly installed in the filter cavity of the filter cylinder, a plurality of filter holes are arranged on the two groups of filter plates, the plurality of filter holes on the two groups of filter plates are staggered with each other, the output end of the gas conveying pipe communicates with the filter cavity of the filter cylinder, the output end of the gas conveying pipe is located below the filter plates, the input end of the air outlet pipe communicates with the upper part of the filter cavity of the filter cylinder, the output end of the air outlet pipe communicates with the waste gas absorption tower, a discharge pipe which communicates with the filter cavity is arranged on the lower part of the filter cylinder, a valve is arranged on the discharge pipe, and filter cloth is arranged on the filter plates; when the flue gas is discharged into the filter cavity of the filter cylinder through the gas conveying pipe, the flue gas is filtered through the two groups of filter plates and then enters the waste gas absorption tower through the air outlet pipe for continuous treatment; the filtration of dust in the flue gas is facilitated.

[0008] Preferably, the water pump, the drain pipe, the conveying pipe A and the conveying pipe B are further included, the water pump is fixedly installed on the bottom plate, the output end of the water pump is connected with the drain pipe, the input ends of the conveying pipe A and the conveying pipe B are communicated with the drain pipe, the output end of the conveying pipe A is communicated with the cavity of the disc B, the output end of the conveying pipe B is located at the upper portion of the filter cavity of the filter cylinder, a spray head is arranged on the output end of the conveying pipe B, and the valve doors are arranged on the conveying pipe A and the conveying pipe B; when the dust attached to the multiple groups of heat exchange pipes and the two groups of filter plates needs to be cleaned, the valve doors on the gas conveying pipe and the exhaust pipe are closed, the valve doors on the conveying pipe A and the conveying pipe B are opened, and the valve doors on the drain pipe and the discharge pipe are opened, then the input end of the water pump is connected with the water source outside, then the water pump is opened, water enters the conveying pipe A and the conveying pipe B through the drain pipe in sequence, then the water in the conveying pipe A is discharged to the outside through the disc B, the multiple groups of heat exchange pipes, the disc A and the drain pipe in sequence, when the water passes through the multiple groups of heat exchange pipes, the dust in the multiple groups of heat exchange pipes is washed clean, and the water on the conveying pipe B is sprayed on the filter plate to wash the filter plate, and the washed water is discharged to the outside through the discharge pipe, so that the filter plate and the multiple groups of heat exchange pipes are conveniently cleaned, and the convenience is improved.

[0009] Preferably, the water tank is provided with a thermometer; through the above arrangement, the temperature in the water cavity of the water tank is conveniently monitored.

[0010] Preferably, the material of the exhaust pipe is high-temperature-resistant material; through the above arrangement, the high-temperature-resistant effect of the exhaust pipe is improved, and the service life of the exhaust pipe is prolonged.

[0011] Compared with the prior art, the beneficial effects of the utility model are that: when the flue gas is purified, the heat energy in the flue gas can be recycled at the same time, energy is saved, use is convenient, and the economy and practicality are high. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the first axonometric structure schematic view of the utility model;

[0013] Figure 2 is the second axonometric structure schematic view of the utility model;

[0014] Figure 3 is the sectional structure schematic view of the utility model;

[0015] Figure 4 is the structure schematic view of the filter plate, the heat exchange pipe and the disc B;

[0016] Figure 5 is the front view structure schematic view of the utility model.

[0017] Marked in the drawing: 1, bottom plate; 2, induced draft fan; 3, exhaust pipe; 4, waste gas absorption tower; 5, support frame; 6, water tank; 7, disc A; 8, disc B; 9, heat exchange pipe; 10, gas conveying pipe; 11, blowdown pipe; 12, filter cartridge; 13, filter plate; 14, air outlet pipe; 16, water pump; 17, drain pipe; 18, conveying pipe A; 19, conveying pipe B. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0019] Example 1

[0020] As Figures 1 to 5 , the heat supply boiler ultra-clean emission device includes a bottom plate 1, an induced draft fan 2, an exhaust pipe 3, a waste gas absorption tower 4, a heat recovery mechanism and a filtering mechanism. The induced draft fan 2 is fixedly installed on the bottom plate 1. The output end of the induced draft fan 2 is provided with the exhaust pipe 3. The exhaust pipe 3 is provided with a valve. The waste gas absorption tower 4 is fixedly installed at the right end of the bottom plate 1. The waste gas absorption tower 4 has the function of absorbing waste gas. The heat recovery mechanism and the filtering mechanism are both installed on the bottom plate 1. The heat recovery mechanism has the function of recovering heat. The output end of the exhaust pipe 3 is connected with the heat recovery mechanism. The heat recovery mechanism is connected with the filtering mechanism. The filtering mechanism is connected with the waste gas absorption tower 4. When the boiler flue gas is treated, the high-temperature flue gas is input into the heat recovery mechanism through the exhaust pipe 3 by the induced draft fan 2 to recover heat, and at the same time, the flue gas is cooled. Then the flue gas enters the filtering mechanism to filter out dust. The filtered flue gas enters the waste gas absorption tower 4 to purify the waste gas, and then is discharged to the outside. When the flue gas is purified, the heat energy in the flue gas can be recovered at the same time, energy is saved, it is convenient to use, and it is high in economy and practicability.

[0021] As Figure 3 and Figure 4 , the heat recovery mechanism includes a support frame 5, a water tank 6 and a heat exchange mechanism. The water tank 6 is fixedly installed on the bottom plate 1 through the support frame 5. The water tank 6 is provided with a water cavity. The upper and lower parts of the water tank 6 are both provided with water inlet pipes and drain pipes which are in communication with the water cavity. The water inlet pipes and the drain pipes are both provided with valves. The heat exchange mechanism is installed in the water cavity of the water tank 6. The heat exchange mechanism has the function of heat exchange. When the flue gas is treated, the water cavity of the water tank 6 is filled with water. The high-temperature flue gas is conveyed into the heat exchange mechanism by the exhaust pipe 3 through the induced draft fan 2. Then the high-temperature flue gas exchanges heat with the water in the water cavity of the water tank 6 through the heat exchange mechanism, so that the water is heated. People can take out the water in the water cavity of the water tank 6 to take a bath or supply heat, thereby improving the convenience.

[0022] As Figure 4 , the heat exchange mechanism includes disc A7, disc B8, multiple sets of heat exchange pipes 9, gas conveying pipe 10 and sewage pipe 11, disc A7 and disc B8 are fixedly installed at upper and lower parts of the water cavity of water tank 6 respectively, chambers are arranged in disc A7 and disc B8 respectively, the output end of exhaust pipe 3 is communicated with the chamber of disc A7, the upper and lower ends of multiple sets of heat exchange pipes 9 are communicated with the chamber of disc B8 and the chamber of disc A7 respectively, the left end of gas conveying pipe 10 is communicated with the chamber of disc B8, the output end of gas conveying pipe 10 is communicated with the filtering mechanism, a valve is arranged on gas conveying pipe 10, the upper end of sewage pipe 11 is communicated with the chamber of disc A7, the lower end of sewage pipe 11 is located below water tank 6, a valve is arranged on sewage pipe 11; when the flue gas is subjected to heat exchange, the induced draft fan 2 is opened, the high-temperature flue gas enters disc A7 through exhaust pipe 3, then the flue gas enters multiple sets of heat exchange pipes 9 through disc A7, the high-temperature flue gas exchanges heat with the water in the water cavity of water tank 6 through the side wall of multiple sets of heat exchange pipes 9, so that the water in the water cavity is warmed up, then the flue gas is discharged into the filtering mechanism through disc B8 and gas conveying pipe 10 for further treatment; when the water in the water cavity of water tank 6 is warmed up to a suitable temperature, the water in the water cavity can be replaced.

[0023] As Figure 3 , the filtering mechanism includes filter cylinder 12, two sets of filter plates 13 and gas outlet pipe 14, a support is arranged on filter cylinder 12, filter cylinder 12 is fixedly installed on sewage pipe 11 through the support, a filter cavity is arranged in filter cylinder 12, two sets of filter plates 13 are fixedly installed in the filter cavity of filter cylinder 12, multiple sets of filter holes are arranged on two sets of filter plates 13 respectively, the multiple sets of filter holes on two sets of filter plates 13 are staggered with each other, the output end of gas conveying pipe 10 is communicated with the filter cavity of filter cylinder 12, the output end of gas conveying pipe 10 is located below filter plates 13, the input end of gas outlet pipe 14 is communicated with the upper part of the filter cavity of filter cylinder 12, the output end of gas outlet pipe 14 is communicated with waste gas absorption tower 4, a discharge pipe which is communicated with the filter cavity is arranged at the lower part of filter cylinder 12, a valve is arranged on the discharge pipe, filter cloth is arranged on filter plates 13; after the flue gas is discharged into the filter cavity of filter cylinder 12 through gas conveying pipe 10, the flue gas is filtered through two sets of filter plates 13 and then enters waste gas absorption tower 4 through gas outlet pipe 14 for further treatment; the filtration of dust in the flue gas is facilitated.

[0024] A thermometer is arranged on water tank 6, the material of exhaust pipe 3 is high-temperature-resistant material.

[0025] Example 2

[0026] As Figure 4 and Figure 3On the basis of embodiment 1, water pump 16, drain pipe 17, conveying pipe A 18 and conveying pipe B 19 are additionally provided, water pump 16 is fixedly installed on bottom plate 1, the output end of water pump 16 is connected with drain pipe 17, the input ends of conveying pipe A 18 and conveying pipe B 19 are communicated with drain pipe 17, the output end of conveying pipe A 18 is communicated with the cavity of disc B 8, the output end of conveying pipe B 19 is located at the upper portion of the filter cavity of filter cylinder 12, a spray head is arranged on the output end of conveying pipe B 19, and valves are arranged on conveying pipe A 18 and conveying pipe B 19; when it is needed to clean the dust attached on the multiple groups of heat exchange pipes 9 and the two groups of filter plates 13, the valves on gas conveying pipe 10 and exhaust pipe 3 are closed, the valves on conveying pipe A 18 and conveying pipe B 19 are opened, and the valves on blowdown pipe 11 and discharge pipe are opened, then the input end of water pump 16 is connected with a water source outside, then water pump 16 is opened, water enters conveying pipe A 18 and conveying pipe B 19 through drain pipe 17 in sequence, then the water in conveying pipe A 18 is discharged to the outside through disc B 8, multiple groups of heat exchange pipes 9, disc A 7 and blowdown pipe 11 in sequence, when the water passes through multiple groups of heat exchange pipes 9, the dust in multiple groups of heat exchange pipes 9 is washed clean, and the water on conveying pipe B 19 is sprayed on filter plate 13 to wash filter plate 13, and the washed water is discharged to the outside through discharge pipe, so that the cleaning of filter plate 13 and multiple groups of heat exchange pipes 9 is facilitated, and convenience is improved.

[0027] The induced draft fan 2, the waste gas absorption tower 4, the heat exchange pipe 9, the blowdown pipe 11, the filter cylinder 12, the filter plate 13 and the water pump 16 of the heat supply boiler ultra-clean discharge device are all purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0028] The above only describes the preferred embodiments of the present application, and it should be pointed out that, for ordinary technical personnel in the technical field, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the present application.

Claims

1. A heat supply boiler ultra-clean emission device, comprising a base plate (1), an air induction fan (2), an exhaust pipe (3) and a waste gas absorption tower (4), the air induction fan (2) is fixedly installed on the base plate (1), an output end of the air induction fan (2) is provided with the exhaust pipe (3), the exhaust pipe (3) is provided with a valve, the waste gas absorption tower (4) is fixedly installed at a right end of the base plate (1), and the waste gas absorption tower (4) has the function of absorbing waste gas. The heat recovery mechanism and the filtering mechanism are both installed on the bottom plate (1), the heat recovery mechanism has the function of recovering heat, the output end of the exhaust pipe (3) is connected with the heat recovery mechanism, the heat recovery mechanism is connected with the filtering mechanism, and the filtering mechanism is connected with the waste gas absorption tower (4).

2. A device for ultra-clean emission of a heat boiler according to claim 1, characterized in that, The heat recovery mechanism comprises a support frame (5), a water tank (6) and a heat exchange mechanism, the water tank (6) is fixedly installed on the bottom plate (1) through the support frame (5), a water cavity is arranged in the water tank (6), water inlet pipes and water outlet pipes in communication with the water cavity are arranged on the upper and lower parts of the water tank (6), valves are arranged on the water inlet pipes and the water outlet pipes, and the heat exchange mechanism is installed in the water cavity of the water tank (6) and has the function of heat exchange.

3. A device for ultra-clean emission of a heat boiler according to claim 2, characterized in that, The heat exchange mechanism comprises a disc A (7), a disc B (8), a plurality of heat exchange pipes (9), a gas conveying pipe (10) and a blowdown pipe (11), the disc A (7) and the disc B (8) are fixedly installed on the upper and lower parts of the water cavity of the water tank (6) respectively, chambers are arranged in the disc A (7) and the disc B (8) respectively, the output end of the exhaust pipe (3) is in communication with the chamber of the disc A (7), the upper and lower ends of the plurality of heat exchange pipes (9) are in communication with the chamber of the disc B (8) and the chamber of the disc A (7) respectively, the left end of the gas conveying pipe (10) is in communication with the chamber of the disc B (8), the output end of the gas conveying pipe (10) is in communication with the filtering mechanism, a valve is arranged on the gas conveying pipe (10), the upper end of the blowdown pipe (11) is in communication with the chamber of the disc A (7), the lower end of the blowdown pipe (11) is located below the water tank (6), and a valve is arranged on the blowdown pipe (11).

4. A device for ultra-clean emission of a heat boiler according to claim 3, characterized in that, The filtering mechanism comprises a filter cylinder (12), two groups of filter plates (13) and an air outlet pipe (14), a support is arranged on the filter cylinder (12), the filter cylinder (12) is fixedly installed on the blowdown pipe (11) through the support, a filter cavity is arranged in the filter cylinder (12), the two groups of filter plates (13) are fixedly installed in the filter cavity of the filter cylinder (12), a plurality of filter holes are arranged on the two groups of filter plates (13) respectively, the plurality of filter holes on the two groups of filter plates (13) are staggered with each other, the output end of the gas conveying pipe (10) is in communication with the filter cavity of the filter cylinder (12), the output end of the gas conveying pipe (10) is located below the filter plates (13), the input end of the air outlet pipe (14) is in communication with the upper part of the filter cavity of the filter cylinder (12), the output end of the air outlet pipe (14) is in communication with the waste gas absorption tower (4), a discharge pipe in communication with the filter cavity is arranged on the lower part of the filter cylinder (12), a valve is arranged on the discharge pipe, and filter cloths are arranged on the filter plates (13).

5. A device for ultra-clean emission of a heat boiler according to claim 4, characterised in that, Also include water pump (16), drain pipe (17), delivery pipe A (18) and delivery pipe B (19), water pump (16) is fixedly installed on the bottom plate (1), the output end of water pump (16) is connected with drain pipe (17), the input end of delivery pipe A (18) and delivery pipe B (19) are communicated with drain pipe (17), the output end of delivery pipe A (18) is communicated with the chamber of disc B (8), the output end of delivery pipe B (19) is located in the upper portion of the filter cavity of filter cartridge (12), the output end of delivery pipe B (19) is provided with a spray head, valve is arranged on delivery pipe A (18) and delivery pipe B (19).

6. A device for ultra-clean emission of a heat supply boiler according to claim 2, characterised in that, The water tank (6) is provided with a thermometer.

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