CN114963836B - Energy recovery noise reduction water tank, exhaust noise reduction and waste heat recovery device - Google Patents
Energy recovery noise reduction water tank, exhaust noise reduction and waste heat recovery device Download PDFInfo
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- CN114963836B CN114963836B CN202210902113.5A CN202210902113A CN114963836B CN 114963836 B CN114963836 B CN 114963836B CN 202210902113 A CN202210902113 A CN 202210902113A CN 114963836 B CN114963836 B CN 114963836B
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- water
- noise reduction
- heat exchange
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The invention relates to an energy recovery noise reduction water tank and an exhaust noise reduction and waste heat recovery device. The technical scheme of the invention is an energy recovery noise reduction water tank, which is characterized in that: the device is provided with a box body, a heat exchange cavity body positioned at the upper part and a noise reduction cavity body positioned at the lower part are formed in the box body in a separating way through a partition plate, wherein the heat exchange cavity body is communicated with an air inlet, and a heat exchange coil is arranged in the heat exchange cavity body; the noise reduction cavity is internally provided with a heat exchange coil and is divided into a water storage area positioned at the lower part and an air outlet area positioned at the upper part, wherein cooling water is stored in the water storage area, and the air outlet area is communicated with an exhaust blow-down pipe; the noise reduction cavity is internally provided with a plurality of guide pipes, the upper ends of the guide pipes are communicated with the heat exchange cavity, and the lower ends of the guide pipes extend to the position below the water surface of cooling water in the water storage area. The invention is suitable for the technical field of compressed air energy storage.
Description
Technical Field
The invention relates to an energy recovery noise reduction water tank and an exhaust noise reduction and waste heat recovery device. The method is suitable for the technical field of compressed air energy storage.
Background
Compressed air energy storage is used as an energy storage system capable of realizing large-capacity and long-time electric energy storage, electricity which is not easy to store such as low ebb, wind energy and solar energy is used for the compressed air energy storage system, compressed high-pressure air is sealed in air storage equipment and is released to be converted into electric energy when needed.
The compressed air energy storage has the advantages of large installed capacity, flexible station layout, short construction period, environmental friendliness, alternating current synchronous generator characteristic and the like, and is a novel energy storage technology which can be compared favorably with pumped storage. The compressed air energy storage has a remarkable advantage in areas without the natural conditions of equipment pumped storage power stations and large wind power plants and solar power plants far away from consumption centers. In new power systems, compressed air energy storage power stations play an important role in peak shaving, frequency modulation, providing rotational inertia and rotational redundancy.
The noise of the unit can make the operating personnel have fidgetiness and interfere with the information exchange between people and machines, and the misoperation rate of the equipment is increased. In addition, the noise can cause neurasthenia, cardiovascular diseases, digestive system diseases and other diseases, and can also cause hearing function sensitivity reduction and even deafness in serious cases. Industrial production noise has been receiving increasing attention as production risk identification, and both workers and enterprises are paying more and more attention to the problem of preventing and treating noise pollution.
At present, compressed air energy storage in China is in a high-speed development stage, under the working condition of power generation, tail gas at the temperature of about 95 ℃ is directly exhausted to the atmosphere, the noise of a plant area is large, the working environment is severe, and residual heat and residual energy cannot be effectively utilized. Therefore, the key measures for improving the working environment and improving the comprehensive utilization of the compressed air energy storage are to solve the problems of energy saving and noise reduction in the exhaust.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: to the problems existing in the prior art, the energy recovery noise reduction water tank, the exhaust noise reduction and the waste heat recovery device are provided.
The technical scheme adopted by the invention is as follows: the utility model provides an energy recuperation water tank of making an uproar that falls which characterized in that: the device is provided with a box body, a heat exchange cavity body positioned at the upper part and a noise reduction cavity body positioned at the lower part are formed in the box body through separation of a partition plate, wherein the heat exchange cavity body is communicated with an air inlet, and a heat exchange coil is arranged in the heat exchange cavity body;
the noise reduction cavity is internally provided with a heat exchange coil and is divided into a water storage area positioned at the lower part and an air outlet area positioned at the upper part, wherein cooling water is stored in the water storage area, and the air outlet area is communicated with an exhaust blow-down pipe; a plurality of guide pipes are arranged in the noise reduction cavity, the upper ends of the guide pipes are communicated with the heat exchange cavity, and the lower ends of the guide pipes extend to the position below the surface of cooling water in the water storage area.
And a separation water filtering plate positioned between the water storage area and the air outlet area is arranged in the noise reduction cavity.
The heat exchange coil pipe in the cavity of making an uproar with heat exchange coil pipe in the heat exchange cavity, outside cold water flow through in proper order after getting into the box through the water inlet on the box heat exchange coil pipe in the cavity of making an uproar and the heat exchange coil pipe in the heat exchange cavity of making an uproar, follow the delivery port on the box and flow out the box again.
And a liquid level control mechanism which can keep the liquid level of the cooling water in the water storage area of the box body within a preset liquid level range is arranged on the outer side of the box body.
The liquid level control mechanism is including the level gauge that is used for acquireing the box water storage area internal cooling water liquid level and the moisturizing pipeline that is used for moisturizing in the water storage area, is furnished with the moisturizing pump on the moisturizing pipeline.
A rectification cavity communicated with the heat exchange cavity is arranged above the heat exchange cavity in the box body, the upper end of the rectification cavity is an air inlet of the box body, and a rectification grid is arranged in the rectification cavity.
The utility model provides an exhaust fall make an uproar and waste heat recovery device which characterized in that: the energy recovery and noise reduction water tank is provided with a waste heat recovery pipeline and the energy recovery and noise reduction water tank, compressed air tail gas after acting is connected into the energy recovery and noise reduction water tank from an air inlet, the waste heat recovery pipeline receives heat-absorbed water output by a heat exchange coil in the energy recovery and noise reduction water tank, and cold water is sent back to the heat exchange coil after heat recovery is carried out on the heat-absorbed water.
The waste heat recovery pipeline is provided with a plate type heat exchanger.
And the waste heat recovery pipeline is connected with a water replenishing pipeline capable of replenishing water for the waste heat recovery pipeline.
The beneficial effects of the invention are: according to the energy recovery noise reduction water tank device, heat exchange is carried out on tail gas through the heat exchange cavity, direct heat exchange is carried out through cooling water, the tail gas is discharged outdoors after twice heat exchange, the temperature of the tail gas is reduced step by step after the tail gas is subjected to twice heat exchange and temperature reduction, the volume flow is reduced step by step, the flow speed of the exhaust gas is reduced, and therefore friction noise is reduced. In the invention, the tail gas is secondarily rectified by the rectifying grid in the energy recovery noise reduction water tank and the water in the noise reduction cavity, and after twice rectification, the compressed air is uniformly discharged, thereby reducing turbulent flow noise.
The invention reduces the energy storage and exhaust noise of the compressed air by adopting two modes of rectification and heat exchange, reduces the noise hazard of production enterprises, improves the working environment and improves the labor enthusiasm of workers. The invention is an energy-saving waste heat recovery measure, absorbs the energy of the original directly-discharged atmosphere, is used for heating circulating hot water, supplies the waste energy to low-heat-load heat users, improves the heat utilization rate of a compressed air energy storage system, and brings additional benefits to a compressed air energy storage power plant. The invention is an environmental protection measure, accords with the energy reduction and emission reduction measure advocated in China, and is an important measure for vigorously developing compressed air energy storage and responding to the national energy development strategy.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
Fig. 2 is an enlarged view of a portion a of fig. 1.
FIG. 3 is a sectional view of an energy recovery and noise reduction water tank in an embodiment.
FIG. 4 is a sectional view of an energy recovery noise reduction water tank in the embodiment.
Fig. 5 is a schematic structural view of a separation water filter plate in the embodiment.
In the figure: 1. an energy recovery and noise reduction water tank; 1a, a rectification grid; 1b, a heat exchange coil; 1c, a middle partition plate; 1d, a flow guide pipe; 1e, separating a water filtering plate; 1g, spring support legs; 1h, a liquid level meter; 2. an exhaust blow-down pipe; 3. a hot water outlet shut-off valve; 4. an inlet cut-off valve of the heat exchanger; 5. a plate heat exchanger; 6. a heat exchanger outlet shut-off valve; 7. a heat exchanger outlet filter; 8. a water circulating pump; 9. an outlet check valve of the circulating water pump; 10. a circulating water pump outlet cut-off valve; 11. a cold water inlet cut-off valve; 12. a water replenishing tank; 13. a water replenishing outlet cut-off valve; 14. a water supplement outlet filter; 15. a water replenishing pump; 16. a water replenishing pump outlet check valve; 17. an outlet cut-off valve of the water replenishing pump; 18. a water replenishing valve; 19. and a water replenishing regulating valve.
Detailed Description
As shown in fig. 1 to 2, the present embodiment is a compressed air energy storage, exhaust, noise reduction and waste heat recovery device, which includes an energy recovery noise reduction water tank, a waste heat recovery pipeline, a water replenishing pipeline, and the like.
As shown in fig. 3 and 4, the energy recovery noise reduction water tank in this embodiment has a tank body, a heat exchange cavity at the upper part and a noise reduction cavity at the lower part are formed in the tank body by separation of a partition plate, a rectification cavity is arranged at the upper part of the heat exchange cavity in the tank body, the heat exchange cavity is communicated with an air inlet at the top end of the tank body by the rectification cavity at the top of the tank body, and a rectification grid is arranged in the rectification cavity.
In this embodiment, the cavity of making an uproar falls and separates through the separation strainer board (see fig. 5) and form the regional region of giving vent to anger that is located the below and the water storage area that is located the below, and the storage area is internal to store and is had the cooling water, is equipped with the gas vent on the box lateral wall that the regional correspondence of giving vent to anger, corresponds the gas vent installation air release pipe.
In the embodiment, a plurality of flow guide pipes are arranged in the noise reduction cavity, the upper ends of the flow guide pipes are connected with the partition plate and communicated with the heat exchange cavity above the partition plate, and the lower ends of the flow guide pipes penetrate through the separation water filtering plate and then extend to the position below the water surface of cooling water in the water storage area and close to the bottom of the water storage area.
In this embodiment, a water inlet is provided on the sidewall of the box body corresponding to the lower portion of the water storage region, and a water outlet is provided on the sidewall of the box body corresponding to the upper portion of the heat exchange cavity. All be equipped with heat exchange coil in cavity and the heat transfer cavity of making an uproar falls in this example, fall the water inlet on the heat exchange coil one end intercommunication box lateral wall in the cavity of making an uproar, the other end links up the one end of the internal heat exchange coil of heat transfer cavity, the delivery port on the other end intercommunication box lateral wall of the internal heat exchange coil of heat transfer cavity.
In this embodiment, the waste heat recovery pipeline communicates with the water inlet and the water outlet on the side wall of the box body, and is used for returning cold water to the heat exchange coil in the box body through the water inlet after heat recovery is performed on the water flowing out of the water outlet after absorbing heat.
The waste heat recovery pipeline in the embodiment is provided with a plate heat exchanger, a water outlet of an energy recovery noise reduction water tank is communicated with a primary side water inlet of the plate heat exchanger through a primary side heat supply pipeline, a hot water outlet stop valve and a heat exchanger inlet stop valve are arranged on the primary side heat supply pipeline, a primary side water outlet of the plate heat exchanger is communicated with a water inlet of the energy recovery noise reduction water tank through a primary heat return pipeline, and a heat exchanger outlet stop valve, a heat exchanger outlet filter, a circulating water pump outlet check valve, a circulating water pump outlet stop valve and a cold water inlet stop valve are arranged on the primary heat return pipeline.
Although the separation water filtering plate is arranged in the noise reduction cavity at the lower part of the energy recovery noise reduction water tank, most of water vapor is trapped, and a small part of water particles are still carried by high-speed air flow to be emptied. In order to ensure the liquid level in the noise reduction cavity at the lower part of the energy recovery noise reduction water tank, the embodiment is provided with a liquid level control mechanism which can keep the liquid level of cooling water in the water storage area of the tank body within a preset liquid level range.
In this example, the liquid level control mechanism comprises a liquid level meter for acquiring the liquid level of cooling water in the water storage area of the box body and a water supplementing pipeline for supplementing water into the water storage area, the water supplementing pipeline comprises a water supplementing tank, the water supplementing tank is communicated with the water storage area in the box body through the water supplementing pipeline, and a water supplementing outlet stop valve, a water supplementing outlet filter, a water supplementing pump outlet check valve, a water supplementing pump outlet stop valve and a water supplementing valve are arranged on the water supplementing pipeline.
And when the liquid level of the cooling water in the water storage area collected by the liquid level meter is lower than a preset low liquid level, starting the water replenishing pump to replenish water, and when the water level reaches a preset high liquid level, stopping the water replenishing pump.
Moisturizing pipeline and waste heat recovery pipeline intercommunication in this embodiment for the water replenishing of waste heat recovery pipeline, moisturizing pipeline in the moisturizing pipeline divides into two the tunnel behind moisturizing pump export trip valve, and water storage area in the moisturizing valve intercommunication box is all the way, and another way is through a backheat pipeline intercommunication between moisturizing governing valve intercommunication circulating pump export trip valve and the cold water import trip valve.
The working principle of the embodiment is as follows: under the compressed air energy storage power generation system operating mode, compressed air tail gas after the acting gets into the energy recovery through the air inlet of box upper end and falls the heat transfer cavity on water tank upper portion that makes an uproar through the rectification coral, with the heat transfer coil heat transfer cooling that sets up in the heat transfer cavity, compressed air after the heat transfer leads the energy recovery to fall the bottom of the cavity of making an uproar lower part of falling the water tank that makes an uproar, with the direct heat transfer of the cooling water in the cavity of making an uproar, tail gas further cools down the energy-absorbing, volume flow sharply reduces, tail gas after the heat transfer filters moisture through the drainage board, arrange to outdoor via gas vent and exhaust blow-down pipe. After the tail gas is subjected to heat exchange and temperature reduction twice, the volume flow is less by about 20%, and the temperature of the exhaust gas can be reduced to below about 50 ℃.
Cold circulating water after heat exchange of the plate heat exchanger sequentially enters a circulating water pump through a heat exchanger outlet stop valve and a heat exchanger outlet filter to be pressurized, the pressurized circulating water enters a heat exchange coil in the energy recovery noise reduction water tank through a circulating water pump outlet check valve, a circulating water pump outlet stop valve and a cold water inlet stop valve, the circulating water sequentially flows through a water storage area, an air outlet area and a heat exchange cavity, is heated by compressed air tail gas step by step, is discharged from a water outlet at the upper part of the energy recovery noise reduction water tank, and enters the plate heat exchanger through a hot water outlet stop valve and the heat exchanger inlet stop valve to exchange heat, so that heat supply circulation is completed.
In the embodiment, the water storage area is filled with rectified cooling water with a certain volume, and the rectified cooling water has the function of directly exchanging heat with the compressed air tail gas to reduce the temperature of the tail gas; secondly, preheating water inlet of the heat exchange coil; thirdly, tail gas is rectified, and exhaust noise is reduced.
The noise source of the compressed air energy storage system comes from the fact that after tail gas leaves a turbine and enters a pipeline, the flow speed of the tail gas is high, pressure change is large, and turbulent noise and friction noise are generated by airflow. The greater the flow velocity and local resistance, the greater the noise generated. Noise reduction measures, in addition to sound insulation, are most important to rectify and reduce the internal energy of the fluid.
This embodiment adopts rectification and heat transfer mode, according to the gas dynamics principle, with the gaseous twice rectification of turbine machine export high-speed turbulent flow, at first do once the rectification at energy recuperation noise reduction water tank entrance side, evenly introduce gaseous water tank upper portion heat transfer cavity, with the built-in heat transfer coil pipe of water tank after once the heat transfer, tail gas through the honeycomb duct with fall the water rectification in the noise reduction cavity, after twice rectification, compressed air evenly gets rid of, reduces turbulent flow noise. According to the heat exchange principle, the temperature of the tail gas is reduced step by step, the volume flow is reduced step by step, and the flow speed of the tail gas is reduced, so that the friction noise is reduced.
Any equivalent changes or equivalent changes made on the basis of the technical scheme still belong to the protection scope of the technical scheme of the invention according to the technical idea provided by the invention.
Claims (7)
1. The utility model provides an energy recuperation water tank of making an uproar that falls which characterized in that: the device is provided with a box body, a heat exchange cavity body positioned at the upper part and a noise reduction cavity body positioned at the lower part are formed in the box body through separation of a partition plate, wherein the heat exchange cavity body is communicated with an air inlet, and a heat exchange coil is arranged in the heat exchange cavity body;
the noise reduction cavity is internally provided with a heat exchange coil and is divided into a water storage area positioned at the lower part and an air outlet area positioned at the upper part, wherein cooling water is stored in the water storage area, and the air outlet area is communicated with an exhaust blow-down pipe; a plurality of guide pipes are arranged in the noise reduction cavity, the upper ends of the guide pipes are communicated with the heat exchange cavity, and the lower ends of the guide pipes extend to be below the water level of cooling water in the water storage area;
one end of the heat exchange coil in the noise reduction cavity is communicated with a water inlet on the side wall of the box body, the other end of the heat exchange coil is connected with one end of the heat exchange coil in the heat exchange cavity, and the other end of the heat exchange coil in the heat exchange cavity is communicated with a water outlet on the side wall of the box body; external cold water enters the box body through a water inlet on the box body, then sequentially flows through the heat exchange coil pipe in the noise reduction cavity and the heat exchange coil pipe in the heat exchange cavity, and then flows out of the box body from a water outlet on the box body;
a rectification cavity communicated with the heat exchange cavity is arranged above the heat exchange cavity in the box body, the upper end of the rectification cavity is an air inlet of the box body, and a rectification grid is arranged in the rectification cavity.
2. The energy recovery noise reduction water tank of claim 1, wherein: and a separation water filtering plate positioned between the water storage area and the air outlet area is arranged in the noise reduction cavity.
3. The energy recovery noise reduction water tank of claim 1, wherein: and a liquid level control mechanism which can keep the liquid level of the cooling water in the water storage area of the box body within a preset liquid level range is arranged outside the box body.
4. The energy recovery noise reduction water tank of claim 3, wherein: the liquid level control mechanism is including the level gauge that is used for acquireing the box water storage area internal cooling water liquid level and the moisturizing pipeline that is used for moisturizing in the water storage area, is furnished with the moisturizing pump on the moisturizing pipeline.
5. The utility model provides an exhaust fall make an uproar and waste heat recovery device which characterized in that: the energy recovery and noise reduction water tank is provided with a waste heat recovery pipeline and the energy recovery and noise reduction water tank as claimed in any one of claims 1 to 4, compressed air tail gas after acting is connected into the energy recovery and noise reduction water tank from an air inlet, the waste heat recovery pipeline receives heat-absorbed water output by a heat exchange coil in the energy recovery and noise reduction water tank, and cold water is sent back to the heat exchange coil after heat recovery is carried out on the heat-absorbed water.
6. The exhaust gas noise reduction and heat recovery device according to claim 5, wherein: the waste heat recovery pipeline is provided with a plate type heat exchanger.
7. The exhaust gas noise reduction and heat recovery device according to claim 5, wherein: and the waste heat recovery pipeline is connected with a water replenishing pipeline capable of replenishing water for the waste heat recovery pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210902113.5A CN114963836B (en) | 2022-07-29 | 2022-07-29 | Energy recovery noise reduction water tank, exhaust noise reduction and waste heat recovery device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210902113.5A CN114963836B (en) | 2022-07-29 | 2022-07-29 | Energy recovery noise reduction water tank, exhaust noise reduction and waste heat recovery device |
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| Publication Number | Publication Date |
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| CN114963836A CN114963836A (en) | 2022-08-30 |
| CN114963836B true CN114963836B (en) | 2022-10-21 |
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| CN202210902113.5A Active CN114963836B (en) | 2022-07-29 | 2022-07-29 | Energy recovery noise reduction water tank, exhaust noise reduction and waste heat recovery device |
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| CN215063848U (en) * | 2021-05-11 | 2021-12-07 | 上海廷亚冷却系统有限公司 | Reverse-flow closed cooling tower with good noise reduction performance |
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| JPH0919678A (en) * | 1995-07-05 | 1997-01-21 | Tokyo Gas Co Ltd | Structure of tank |
| KR20080003668A (en) * | 2006-07-03 | 2008-01-08 | 주식회사 대우일렉트로닉스 | Machinery room for reducing noise and vibration in emission apparatus of heat for refrigerator |
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| CN215063848U (en) * | 2021-05-11 | 2021-12-07 | 上海廷亚冷却系统有限公司 | Reverse-flow closed cooling tower with good noise reduction performance |
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| CN114963836A (en) | 2022-08-30 |
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