CN215027184U - High-temperature malodorous gas purification system with heat recovery function - Google Patents
High-temperature malodorous gas purification system with heat recovery function Download PDFInfo
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- CN215027184U CN215027184U CN202120663333.8U CN202120663333U CN215027184U CN 215027184 U CN215027184 U CN 215027184U CN 202120663333 U CN202120663333 U CN 202120663333U CN 215027184 U CN215027184 U CN 215027184U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
A high-temperature malodorous gas purification system with a heat recovery function relates to the field of waste gas treatment and comprises a primary spray tower circulation system, a secondary spray tower circulation system and a heat recovery system, wherein the primary spray tower is connected with a first back-flushing filter, a first water discharge pump, a heat exchanger and a heat pump unit in sequence by pipelines and then connected back to a spray head, the secondary spray tower is connected with a second back-flushing filter, a second water discharge pump and a heat pump unit in sequence by pipelines and then connected back to the spray head, the primary spray tower is used for cooling and dust-settling flue gas, the secondary spray tower is used for oxidizing and degrading malodorous gas, spray liquid of the two-stage spray tower is recycled under the action of an auxiliary pipeline facility after fully absorbing the heat of the flue gas, and the heat is recovered in the heat pump unit to output hot water and can be used for bathing, heating or steam production, thereby realizing the purposes of reducing the energy consumption of enterprises and reducing the carbon emission, the method has the characteristics of safe and reliable process, simple system structure and capability of synergistically reducing pollutant emission and energy consumption.
Description
Technical Field
The utility model relates to a waste gas treatment field, in particular to high temperature foul gas clean system with heat recovery function.
Background
In the production process of the industries such as biological pharmacy, feed processing, food processing and the like, steam is often used for heating the raw materials, and waste steam is discharged in high altitude after products are formed. Two problems are usually brought about by the production process, namely that the waste steam contains malodorous gas generated by raw material curing, and environmental petition complaints are easily caused during discharge; and secondly, the direct discharge of waste steam is energy waste, and heat pollution is caused to the surrounding environment. However, the malodorous waste gas is high in temperature and humidity and often carries certain raw material dust, so that the commonly used malodorous treatment technologies such as photocatalysis, chemical filtration, biotrickling filtration and the like are difficult to effectively eliminate the odorous gas, and even if the technologies are combined for use, the problem of energy waste in waste gas emission cannot be solved.
Disclosure of Invention
The utility model aims at providing a high temperature foul gas clean system with heat recovery function to the not enough of prior art existence.
The technical scheme adopted by the utility model is as follows: a high-temperature malodorous gas purification system with a heat recovery function comprises a primary spray tower circulation system and a secondary spray tower circulation system, and is technically characterized by also comprising a heat recovery system, wherein the primary spray tower circulation system receives waste gas by using a waste gas inlet at the bottom of the primary spray tower, is connected with a gas inlet of the secondary spray tower by using a waste gas pipeline connected with a waste gas outlet at the top of the primary spray tower, and discharges the waste gas from a waste gas outlet at the top of the secondary spray tower after the waste gas is oxidized and degraded in the secondary spray tower; spray heads are arranged in the first-stage spray tower and the second-stage spray tower, a spray liquid circulating discharge port at the bottom of the first-stage spray tower is connected with a first backwashing filter, a first water discharge pump and a heat exchanger sequentially by pipelines and then is connected to a first heat input end inlet of a heat pump unit, and a first heat input end outlet of the heat pump unit is connected to the spray head at the top of the first-stage spray tower by a first spray circulating pump through a pipeline to form a first circulating spray loop; a spray liquid circulation discharge port at the bottom of the secondary spray tower is sequentially connected with a second backwashing filter and a second draining pump by using pipelines and then is connected to an inlet of a second heat input end of the heat pump unit, and an outlet of the second heat input end of the heat pump unit is connected with a second spray circulating pump by using pipelines and then is connected to a spray head at the top of the secondary spray tower to form a second spray loop; in the heat recovery system, the water inlet tank is connected with the third back-washing filter, the cooling water pump and the heat exchanger in sequence by using pipelines and then is connected with the inlet of the heat output end of the heat pump unit, and the outlet of the heat end of the heat pump unit is connected with the water outlet water pump by using pipelines and then is connected with the water outlet water tank to form an outer output loop.
In the above scheme, the spraying liquid in the pipeline of the first circulating spraying loop is water, and the spraying liquid in the pipeline of the second circulating spraying loop is sodium hypochlorite solution.
In the above scheme, the heat pump unit is used for heat recovery and mainly comprises a first evaporator, a second evaporator, a throttle valve, a condenser and a compressor, wherein the first evaporator is connected with the second evaporator, the throttle valve, the condenser and the compressor by pipelines and then connected to the first evaporator.
The utility model has the advantages that: the high-temperature malodorous gas purification system with the heat recovery function comprises a primary spray tower circulating system, a secondary spray tower circulating system and a heat recovery system, wherein the primary spray tower circulating system is sequentially connected with a first backwashing filter, a first water discharge pump, a heat exchanger and a heat pump unit by pipelines and then connected back to a spray head, the secondary spray tower circulating system is sequentially connected with a second backwashing filter, a second water discharge pump and the heat pump unit by pipelines and then connected back to the spray head, the primary spray tower is used for cooling and dust-settling of flue gas, the secondary spray tower is used for oxidizing and degrading malodorous gas, spray liquid in the two-stage spray towers is recycled under the action of an auxiliary pipeline facility after fully absorbing the heat of the flue gas, and heat is recovered in the heat pump unit to output hot water, and the hot water output by the heat pump can be used for bathing, heating or steam production, thereby realizing the reduction of enterprise energy consumption, the method has the advantages of reducing carbon emission, along with safe and reliable process, simple system structure and capability of synergistically reducing pollutant emission and energy consumption.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a high-temperature malodorous gas purification system with a heat recovery function in an embodiment of the present invention;
the numbers in the figure illustrate the following: 1 first-stage spray tower, 1-1 first backwashing filter, 1-2 first water discharge pump, 1-3 first spray circulation pump, 2 second-stage spray tower, 2-1 second backwashing filter, 2-2 second water discharge pump, 2-3 second spray circulation pump, 3 heat exchanger, 4 heat pump unit, 4-1 first evaporator, 4-2 second evaporator, 4-3 compressor, 4-4 condenser, 4-5 throttle valve, 5 heat recovery system, 5-1 water inlet tank, 5-2 third backwashing filter, 5-3 cooling water pump, 5-4 water outlet pump, 5-5 water outlet tank, a first-stage spray tower spray liquid circulation discharge port, b heat pump unit first heat input end inlet, c heat pump unit first heat input end outlet, A second-stage spray tower spray liquid circulation discharge port, A second heat input end inlet of the heat pump unit B, a second heat input end outlet of the heat pump unit C, a heat output end inlet of the heat pump unit D and a heat output end outlet of the heat pump unit D.
Detailed Description
The above objects, features and advantages of the present invention will become more apparent and the present invention will be explained in more detail with reference to the accompanying drawings 1 and the detailed description thereof.
The high-temperature malodorous gas purification system with the heat recovery function adopted by the embodiment comprises a primary spray tower circulating system, a secondary spray tower circulating system and a heat recovery system 5. The first-stage spray tower circulating system 1 receives waste gas by using a waste gas inlet at the bottom, is connected with a gas inlet of the second-stage spray tower circulating system 2 by using a waste gas pipeline connected with a waste gas outlet at the top of the first-stage spray tower circulating system, and is discharged by a waste gas outlet at the top of the second-stage spray tower circulating system 2 after the waste gas is oxidized and degraded in the second-stage spray tower circulating system 2.
In the embodiment, the top parts of the first-stage spray tower 1 and the second-stage spray tower 2 are respectively provided with a spray head. In the first-stage spray tower circulating system, a spray liquid circulating discharge port a is arranged at the bottom of a first-stage spray tower 1, the discharge port is sequentially connected with a first backwashing filter 1-1, a first water discharge pump 1-2 and a heat exchanger 3 and is connected to a first heat input end inlet b of a heat pump unit, and an outlet c of the first heat input end of the heat pump unit is connected with a spray head at the top of the first-stage spray tower 1 through a first spray circulating pump 1-3. In the second-stage spray tower circulation system in this embodiment, a second-stage spray tower spray liquid circulation discharge port a is arranged at the bottom of the second-stage spray tower 2, and is sequentially connected with a second backwashing filter 2-1 and a second drainage pump 2-2, and is connected to a second heat input end inlet B of the heat pump unit, and a second heat input end outlet C of the heat pump unit is connected with a spray head at the top of the second-stage spray tower 2 through a second spray circulation pump 2-3. In the heat recovery system 5, a water inlet tank 5-1 is connected with a third backwashing filter 5-2, a cooling water pump 5-3 and a heat exchanger 3 in sequence and then is connected to a heat output end inlet D of a heat pump unit, and a heat output end outlet D of the heat pump unit is connected to a water outlet tank 5-5 through a water outlet pump 5-4.
In the first-level spray tower circulation system and the second-level spray tower circulation system, the first-level spray tower 1 adopts water as spray liquid for dedusting and cooling flue gas, and the second-level spray tower 2 adopts sodium hypochlorite solution as spray liquid for oxidizing and removing gaseous pollutants.
In the heat recovery system 5, a one-driving-multiple heat pump unit 4 is used for heat recovery, a first evaporator 4-1 is arranged between a first heat input end inlet B and a first heat input end outlet C of the heat pump unit, a second evaporator 4-2 is arranged between a second heat input end inlet B and a second heat input end outlet C of the heat pump unit, a condenser 4-4 is arranged between a heat output end inlet D of the heat pump unit and a heat output end outlet D of the heat pump unit, and a refrigerant is subjected to continuous phase change circulation among the condenser 4-4, a throttle valve 4-5, the second evaporator 4-2, the first evaporator 4-1 and the compressor 4-3 to extract heat in spray liquid and output hot water outwards.
In the heat recovery system, before spraying liquid discharged from the bottom of the first-stage spraying tower 1 enters the heat pump unit 4, cooling water is heated by the heat exchanger 3 in a natural heat exchange mode, so that the temperature difference between the cooling water and the cooling water is reduced, and the power load of the rear-end heat pump unit is reduced.
The working process of the high-temperature malodorous gas purification system with the heat recovery function in the embodiment is as follows:
the high-temperature malodorous waste gas is firstly cooled and dusted through the first-stage spray tower 1, then enters the second-stage spray tower 2 to oxidize and degrade the malodorous gas, and then is discharged into the atmospheric environment. Water in the first-stage spray tower 1 is ejected from a nozzle, fully contacts with high-temperature odorous waste gas to absorb the temperature of the smoke and then falls into the bottom, particles are removed through a first backwashing filter 1-1, the water flows into a heat exchanger 3 under the action of a first drainage pump 1-2 to heat and raise the temperature of cooling water, the spray water passes through a heat pump unit 4 to complete heat exchange and temperature rise of the cooling water again, and finally flows back to the nozzle of the first-stage spray tower 1 under the action of a first spray circulating pump 1-3 to realize circulating spray. Meanwhile, sodium hypochlorite solution in the second-stage spray tower 2 is ejected from the spray head, fully contacts with waste gas to absorb heat and then falls into the bottom, particles are removed through a second backwashing filter 2-1, the sodium hypochlorite solution enters a heat pump unit 4 under the action of a second drainage pump 2-2, heat exchange and temperature rise of cooling water are completed, and finally the sodium hypochlorite solution flows back to the spray head of the second-stage spray tower under the action of a second spray circulating pump 2-3 to realize circulating spray. The cooling water obtains the heat in the spray liquid through the heat exchanger 3 and the heat pump unit 4, and hot water is outwards output, so that the shower, heating or steam production can be realized, and the aims of reducing the energy consumption of enterprises and reducing the carbon emission are fulfilled.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. A high-temperature malodorous gas purification system with a heat recovery function comprises a primary spray tower circulation system and a secondary spray tower circulation system, and is characterized by also comprising the heat recovery system, wherein the primary spray tower circulation system mainly comprises a water inlet tank (5-1), a third backwashing filter (5-2), a cooling water pump (5-3), a heat exchanger (3) and a heat pump unit (4), the primary spray tower circulation system receives waste gas by using a waste gas inlet at the bottom of the primary spray tower (1), is connected with a gas inlet of a secondary spray tower (2) of the secondary spray tower circulation system by using a waste gas pipeline connected with a waste gas outlet at the top of the primary spray tower (1), and discharges the waste gas from a waste gas outlet at the top of the secondary spray tower (2) after oxidative degradation in the secondary spray tower (2); the spray heads are arranged in the first-stage spray tower (1) and the second-stage spray tower (2), a spray liquid circulation discharge port (a) at the bottom of the first-stage spray tower (1) is sequentially connected with a first backwashing filter (1-1), a first water discharge pump (1-2) and a heat exchanger (3) by pipelines and then is connected to a first heat input end inlet (b) of a heat pump unit (4), and a first heat input end outlet (c) of the heat pump unit is connected to the spray head at the top of the first-stage spray tower by a first spray circulation pump (1-3) through a pipeline to form a first circulation spray loop; a spray liquid circulation discharge port (A) at the bottom of the secondary spray tower (2) is sequentially connected with a second backwashing filter (2-1) and a second drainage pump (2-2) by virtue of pipelines and then is connected to a second heat input end inlet (B) of the heat pump unit, and a second heat input end outlet (C) of the heat pump unit is connected with a second spray circulation pump (2-3) by virtue of pipelines and then is connected to a spray head at the top of the secondary spray tower to form a second spray loop; in the heat recovery system, a water inlet tank (5-1) is connected with a third backwashing filter (5-2), a cooling water pump (5-3) and a heat exchanger (3) in sequence by pipelines and then is connected with a heat output end inlet (D) of a heat pump unit, and a hot end outlet (D) of the heat pump unit is connected with an outlet water pump (5-4) by pipelines and then is connected with an outlet water tank (5-5) to form an outer output loop.
2. A high-temperature malodorous gas purification system with heat recovery function as claimed in claim 1, wherein the spray liquid in the pipeline of the first circulating spray circuit is water, and the spray liquid in the pipeline of the second circulating spray circuit is sodium hypochlorite solution.
3. The high-temperature malodorous gas purification system with the heat recovery function as claimed in claim 1, wherein the heat pump unit (4) mainly comprises a first evaporator (4-1), a second evaporator (4-2), a throttle valve (4-5), a condenser (4-4) and a compressor (4-3), and the first evaporator (4-1) is sequentially connected with the second evaporator (4-2), the throttle valve (4-5), the condenser (4-4) and the compressor (4-3) by pipelines and then connected to the first evaporator (4-1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120663333.8U CN215027184U (en) | 2021-04-01 | 2021-04-01 | High-temperature malodorous gas purification system with heat recovery function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120663333.8U CN215027184U (en) | 2021-04-01 | 2021-04-01 | High-temperature malodorous gas purification system with heat recovery function |
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| CN215027184U true CN215027184U (en) | 2021-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114489175A (en) * | 2021-12-31 | 2022-05-13 | 北京京仪自动化装备技术股份有限公司 | Temperature control system |
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2021
- 2021-04-01 CN CN202120663333.8U patent/CN215027184U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114489175A (en) * | 2021-12-31 | 2022-05-13 | 北京京仪自动化装备技术股份有限公司 | Temperature control system |
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