CN221122248U - Waste gas combustion module with heat energy recovery device - Google Patents
Waste gas combustion module with heat energy recovery device Download PDFInfo
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- CN221122248U CN221122248U CN202322711461.7U CN202322711461U CN221122248U CN 221122248 U CN221122248 U CN 221122248U CN 202322711461 U CN202322711461 U CN 202322711461U CN 221122248 U CN221122248 U CN 221122248U
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- heat exchanger
- stage
- integrated plate
- pipeline
- output end
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 23
- 239000002912 waste gas Substances 0.000 title claims abstract description 19
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 53
- 238000007084 catalytic combustion reaction Methods 0.000 claims abstract description 26
- 238000003795 desorption Methods 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims description 18
- 238000001179 sorption measurement Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 15
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 239000010815 organic waste Substances 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract description 6
- 229910021536 Zeolite Inorganic materials 0.000 description 8
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 8
- 239000010457 zeolite Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model relates to the technical field of waste gas combustion, in particular to a waste gas combustion module with a heat energy recovery device. The utility model has the advantages that: the small air quantity and high-concentration organic waste gas after being desorbed through the filter module enter the catalytic combustion bed to be purified after being preheated, the organic waste gas is cracked to release heat to enable the gas temperature to be further increased, the purified tail gas is absorbed by the two-stage integrated plate type heat exchanger to be used for heating the cooling air and the desorption air of the filter module, the aim of saving energy is achieved, the temperature signal measured through the first temperature sensor is used as an opening and closing control signal of the heater, the opening and closing control signal of the heater can be started after the temperature of the waste gas is lower than a set value, and the temperature signal measured through the second temperature sensor is used as an opening and closing control signal of the electric heater, so that the auxiliary heating effect can be achieved when the preheating temperature of the two-stage integrated plate type heat exchanger cannot reach the requirement, and the integral energy saving effect is improved.
Description
Technical Field
The utility model relates to the technical field of waste gas combustion, in particular to a waste gas combustion module with a heat energy recovery device.
Background
The catalytic combustion bed is a common device in waste gas treatment, high-concentration organic waste gas enters the catalytic combustion bed after being preheated, under the action of a catalyst, the high-temperature pyrolysis is carried out to form CO2 and H2O, and organic components are purified, but the following problems exist in the use of a combustion module in the current waste gas treatment system:
At present, the waste gas combustion module is used for high-temperature combustion in a flame mode, the combusted air flow has higher temperature, and at present, cooling equipment is used for cooling and then discharging, so that a large amount of heat is wasted, waste heat cannot be utilized in the operation of waste gas treatment equipment, and the energy-saving effect is poor.
Disclosure of utility model
The object of the present utility model is to solve at least one of the technical drawbacks.
Therefore, an object of the present utility model is to provide an exhaust gas combustion module with a heat energy recovery device, so as to solve the problems mentioned in the background art and overcome the disadvantages in the prior art.
In order to achieve the above object, an embodiment of an aspect of the present utility model provides an exhaust gas combustion module with a heat energy recovery device, which includes a catalytic combustion bed, a two-stage integrated plate heat exchanger, and a filtration module, wherein a heater is fixedly connected in the combustion chamber of the catalytic combustion bed, a first temperature sensor is further installed in the catalytic combustion bed, the first temperature sensor is used for controlling the opening and closing of the heater, an exhaust gas input end of the two-stage integrated plate heat exchanger heat absorption stage is fixedly connected with a flame arrester, an input end of the flame arrester is communicated with a high concentration exhaust gas output end of the filtration module through a pipeline, an output end of the two-stage integrated plate heat exchanger heat absorption stage is communicated with an air flow input end of the catalytic combustion bed through a pipeline, a high temperature air output end of the catalytic combustion bed is communicated with an input end of the two-stage integrated plate heat exchanger heat absorption stage through a pipeline, an output end of the two-stage integrated plate heat exchanger heat absorption stage heat output end of the filtration module is communicated with an input end of the filtration module through a pipeline, and an output end of the filtration module is connected with a main heat exchange pipeline through a high concentration exhaust gas reflux pipeline.
By the above scheme, preferably, the output end of the heat exchange stage of the two-stage integrated plate heat exchanger is fixedly connected with an electric heater, the output end of the heat exchange stage of the two-stage integrated plate heat exchanger is communicated with an output pipeline through the electric heater, the output pipeline of the heat exchange stage of the two-stage integrated plate heat exchanger is fixedly connected with a second temperature sensor, and the second temperature sensor is used for controlling the opening and closing of the electric heater.
The technical effect achieved by adopting the scheme is as follows: the temperature signal measured by the second temperature sensor is used as an opening and closing control signal of the electric heater, so that the auxiliary heating function can be realized when the preheating temperature of the two-stage integrated plate heat exchanger cannot reach the requirement, and the integral energy-saving effect is improved.
By the above-mentioned scheme preferred, the hot gas connecting pipe fixedly connected with concentration sensor of catalytic combustion bed and two-stage integral plate heat exchanger, the main line fixedly connected with proportional valve that filtration module's high concentration waste gas output and two-stage integral plate heat exchanger are connected, concentration sensor is used for controlling the switching proportion of proportional valve.
The technical effect achieved by adopting the scheme is as follows: the concentration sensor monitors the exhaust gas concentration signal in the pipeline, the signal controls the opening and closing proportion of the proportional valve through the PLC controller, when the concentration is too high, the opening proportion is reduced, otherwise, the opening proportion is increased, so that the concentration of the input exhaust gas flow is controlled in a proper range, the exhaust gas is sufficiently purified, and the maximum effect is exerted.
In any of the above schemes, it is preferable that the exhaust gas output end of the two-stage integrated plate heat exchanger is connected with an exhaust chimney through a pipeline.
The technical effect achieved by adopting the scheme is as follows: the chimney can discharge the purified tail gas to the atmosphere.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. The waste gas combustion module with the heat energy recovery device is characterized in that small air quantity and high concentration organic waste gas after being desorbed by the filtering module enters the catalytic combustion bed after being preheated, is cracked into CO and HO at high temperature under the action of a catalyst, organic components are purified, meanwhile, the organic waste gas is cracked to release heat so that the temperature of the gas is further increased, the purified tail gas absorbs heat through a two-stage integrated plate type heat exchanger and is used for heating cooling air and desorption air of the filtering module, high-concentration waste gas is preheated, and heat is fully utilized so as to achieve the purpose of saving energy.
2. This take heat recovery unit's waste gas combustion module, the temperature signal that surveys through first temperature sensor comes as the switching control signal of heater, can just open after waste gas temperature is less than the setting value, and the temperature signal that surveys through the second temperature sensor simultaneously is as the switching control signal of electric heater, can play auxiliary heating's effect when two-stage integrative plate heat exchanger preheats the temperature and can not reach the needs to holistic energy-conserving effect has been improved.
Drawings
FIG. 1 is a schematic flow chart of the present utility model.
In the figure: 1-catalytic combustion bed, 2-two-stage integrated plate heat exchanger, 5-flame arrester, 6-heater, 7-first temperature sensor, 10-concentration sensor, 11-proportional valve, 12-filtration module, 13-exhaust chimney, 14-second temperature sensor, 15-electric heater.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following.
Embodiment one: as shown in fig. 1, an exhaust gas combustion module with a heat energy recovery device comprises a catalytic combustion bed 1, a two-stage integrated plate type heat exchanger 2 and a filtering module 12, wherein a heater 6 is fixedly connected in a combustion chamber of the catalytic combustion bed 1, a first temperature sensor 7 is further installed in the catalytic combustion bed 1, the first temperature sensor 7 is used for controlling the opening and closing of the heater 6, the waste gas input end of the heat absorption stage of the two-stage integrated plate type heat exchanger 2 is fixedly connected with a flame arrester 5, the input end of the flame arrester 5 is communicated with the high-concentration waste gas output end of the filtering module 12 through a pipeline, the output end of the heat absorption stage of the two-stage integrated plate type heat exchanger 2 is communicated with the air flow input end of the catalytic combustion bed 1 through a pipeline, the high-temperature air output end of the catalytic combustion bed 1 is communicated with the high-temperature air input end of the heat absorption stage of the two-stage integrated plate type heat exchanger 2 through a pipeline, the output end of the two-stage integrated plate type heat exchanger 2 is communicated with the input end of the filtering module 12 through a pipeline, the back flow output end of the filtering module 12 is connected with the high-concentration zeolite, the high-temperature zeolite can be purified by adopting a high-grade zeolite filter material, and the high-quality zeolite filter material can be used for purifying the zeolite, and the high-quality zeolite filter material can be used for purifying the raw materials by adopting a high-quality zeolite filter, and the filter material can be purified by adopting a high-quality zeolite filter, and a filter material.
As an alternative technical scheme of the utility model, the output end of the heat exchange stage of the two-stage integrated plate type heat exchanger 2 is fixedly connected with the electric heater 15, the output end of the heat exchange stage of the two-stage integrated plate type heat exchanger 2 is communicated with the output pipeline through the electric heater 15, the output pipeline of the heat exchange stage of the two-stage integrated plate type heat exchanger 2 is fixedly connected with the second temperature sensor 14, the second temperature sensor 14 is used for controlling the opening and closing of the electric heater 15, and the temperature signal measured by the second temperature sensor 14 is used as an opening and closing control signal of the electric heater 15, so that the auxiliary heating effect can be achieved when the preheating temperature of the two-stage integrated plate type heat exchanger 2 cannot reach the requirement, and the integral energy saving effect is improved.
As an alternative technical scheme of the utility model, a concentration sensor 10 is fixedly connected to a hot gas connecting pipeline of the catalytic combustion bed 1 and the two-stage integrated plate type heat exchanger 2, a proportional valve 11 is fixedly connected to a main pipeline of a high-concentration exhaust gas output end of a filtering module 12 and the two-stage integrated plate type heat exchanger 2, the concentration sensor 10 is used for controlling the opening and closing proportion of the proportional valve 11, an exhaust gas concentration signal in a pipeline monitored by the concentration sensor 10 is used as a control signal of the opening and closing proportion of the proportional valve 11, the opening proportion can be reduced when the concentration is too high, otherwise, the opening proportion is increased, so that the concentration of the input exhaust gas flow is controlled in a proper range, the exhaust gas is sufficiently purified, and the maximum effect is exerted.
As an alternative technical scheme of the utility model, the exhaust gas output end of the two-stage integrated plate heat exchanger 2 is connected with an exhaust chimney 13 through a pipeline, and purified tail gas can be discharged to the atmosphere through the chimney.
The first temperature sensor 7, the second temperature sensor 14 and the concentration sensor 10 are all connected with an industrial PLC controller, and the heater 6, the electric heater 15 and the proportional valve 11 are controlled by the PLC controller.
An exhaust gas combustion module with a heat energy recovery device has the following working principle:
1) The small-air-volume high-concentration organic waste gas desorbed by the filter module 12 enters a catalytic combustion bed after being preheated, is cracked into CO2 and H2O at high temperature under the action of a catalyst, and organic components are purified;
2) The organic waste gas is cracked to release heat to further raise the gas temperature, and the purified tail gas absorbs heat through the two-stage integrated plate type heat exchanger 2 to heat the cooling air and the desorption air of the filter module 12;
3) The heated air flow is input into an exhaust gas input pipeline to preheat high-concentration exhaust gas.
In summary, the exhaust gas combustion module with the heat recovery device, after being desorbed by the filtering module 12, is preheated, the low-air-volume and high-concentration organic exhaust gas enters the catalytic combustion bed 1, under the action of the catalyst, is cracked into CO2 and H2O at high temperature, organic components are purified, meanwhile, the organic exhaust gas is cracked to release heat to further raise the temperature of the gas, the purified exhaust gas is absorbed by the two-stage integrated plate heat exchanger 2 to heat the cooling air and the desorption air of the filtering module 12, the purpose of preheating the high-concentration exhaust gas is achieved, the heat is fully utilized, so that the purpose of saving energy is achieved, the temperature signal measured by the first temperature sensor 7 is used as an opening and closing control signal of the heater 6, the exhaust gas can be started after the temperature of the exhaust gas is lower than a set value, and the temperature signal measured by the second temperature sensor 14 is used as an opening and closing control signal of the electric heater 15, and the effect of auxiliary heating can be achieved when the preheating temperature of the two-stage integrated plate heat exchanger 2 is not required, and therefore the whole energy saving effect is improved.
Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a take heat recovery unit's exhaust gas combustion module, includes catalytic combustion bed (1), two-stage integral plate heat exchanger (2) and filtration module (12), its characterized in that: the catalytic combustion bed is characterized in that a heater (6) is fixedly connected in a combustion chamber of the catalytic combustion bed (1), a first temperature sensor (7) is further arranged in the catalytic combustion bed (1), the first temperature sensor (7) is used for controlling opening and closing of the heater (6), a flame arrester (5) is fixedly connected to an exhaust gas input end of an adsorption stage of the two-stage integrated plate heat exchanger (2), an input end of the flame arrester (5) is communicated with a high-concentration exhaust gas output end of the filter module (12) through a pipeline, an output end of the adsorption stage of the two-stage integrated plate heat exchanger (2) is communicated with an airflow input end of the catalytic combustion bed (1) through a pipeline, a high-temperature gas output end of the catalytic combustion bed (1) is communicated with a high-temperature gas input end of the adsorption stage of the two-stage integrated plate heat exchanger (2) through a pipeline, a desorption air output end of the filter module (12) is communicated with an input end of the two-stage integrated plate heat exchanger (2) through a pipeline, and an output end of the two-stage integrated plate heat exchanger (12) is communicated with an output end of the main heat exchanger (12) through a pipeline.
2. An exhaust gas combustion module with a heat energy recovery device according to claim 1, characterized in that: the output end of the heat exchange stage of the two-stage integrated plate heat exchanger (2) is fixedly connected with an electric heater (15), the output end of the heat exchange stage of the two-stage integrated plate heat exchanger (2) is communicated with an output pipeline through the electric heater (15), the output pipeline of the heat exchange stage of the two-stage integrated plate heat exchanger (2) is fixedly connected with a second temperature sensor (14), and the second temperature sensor (14) is used for controlling the opening and closing of the electric heater (15).
3. An exhaust gas combustion module with a heat energy recovery device according to claim 1, characterized in that: the catalytic combustion bed (1) is fixedly connected with a concentration sensor (10) with a hot gas connecting pipeline of the two-stage integrated plate heat exchanger (2), a main pipeline connected with the two-stage integrated plate heat exchanger (2) is fixedly connected with a proportional valve (11) at the high concentration waste gas output end of the filtering module (12), and the concentration sensor (10) is used for controlling the opening and closing proportion of the proportional valve (11).
4. An exhaust gas combustion module with a heat energy recovery device according to claim 1, characterized in that: the exhaust gas output end of the two-stage integrated plate heat exchanger (2) is connected with an exhaust chimney (13) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322711461.7U CN221122248U (en) | 2023-10-10 | 2023-10-10 | Waste gas combustion module with heat energy recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322711461.7U CN221122248U (en) | 2023-10-10 | 2023-10-10 | Waste gas combustion module with heat energy recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221122248U true CN221122248U (en) | 2024-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322711461.7U Active CN221122248U (en) | 2023-10-10 | 2023-10-10 | Waste gas combustion module with heat energy recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221122248U (en) |
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2023
- 2023-10-10 CN CN202322711461.7U patent/CN221122248U/en active Active
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