CN210509534U - Hot air curtain system of garbage bin discharge door based on air compressor machine waste heat utilization - Google Patents
Hot air curtain system of garbage bin discharge door based on air compressor machine waste heat utilization Download PDFInfo
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- CN210509534U CN210509534U CN201921388025.8U CN201921388025U CN210509534U CN 210509534 U CN210509534 U CN 210509534U CN 201921388025 U CN201921388025 U CN 201921388025U CN 210509534 U CN210509534 U CN 210509534U
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Abstract
The utility model provides a hot-air curtain system of garbage bin discharge door based on air compressor machine waste heat utilization, the cold water pump is connected to the water inlet of gas heat recovery device right side below through first cold water pipeline, gas heat recovery device left side top sets up the delivery port, gas heat recovery device delivery port links to each other with the water inlet of oil heat recovery device right side below through the second cold water pipe, oil heat recovery device left side top sets up the delivery port, oil heat recovery device delivery port links to each other with hot-water pump and hot-air curtain device through first hot-water line in proper order, hot-air curtain device carries back to the water storage tank through the second hot-water line; the air compressor is connected with an air inlet on the left side of the air heat recoverer through an air pipeline, and the hot oil recoverer is connected with the air compressor through an oil outlet pipeline on the right lower side and an oil return pipeline on the left lower side. Through setting up hot-blast curtain, play the separation effect, effectively utilize the used heat of air compressor machine, improve rubbish fermentation effect, improve the generated energy, effectively prevent simultaneously that the interior foul smell of garbage bin is excessive.
Description
Technical Field
The utility model belongs to the technical field of energy-saving equipment, in particular to hot-blast curtain system of garbage bin discharge door based on air compressor machine waste heat utilization.
Background
With the continuous development of environmental protection economy and the iterative upgrade of environmental protection technology, the energy-saving requirements for energy equipment in the environmental protection industry are more and more stringent. The air compressor is used as conventional important equipment in the environmental protection industry, and has large use amount and long continuous operation time. The air compressor machine power consumption is big, and the air compressor machine availability factor is generally lower in domestic. For example, in main electric equipment of a waste incineration power plant, the air compressor which has large power consumption accounts for about 10% -15% of the power consumption of the whole plant, but the utilization degree of a large amount of waste heat generated in the preparation process of compressed air is very limited.
In the operation process of the air compressor, a large amount of heat energy is generated along with the potential energy conversion of air molecules, but according to statistical data, the electric energy consumed for really increasing the potential energy of the air only accounts for a small part of the total electric energy consumption, about 20 percent, and about 80 percent of the electric energy is converted into heat. If the heat generated by the air compressor is not discharged in time, the normal work of the compressor is influenced, and the quality of the compressed air is reduced. The heat dissipation mode of the existing air compressor is usually to discharge a large amount of heat to the environment through air cooling or water cooling. Therefore, a large amount of heat energy is wasted, heat pollution is caused, the ambient temperature is increased, and the greenhouse effect is aggravated.
In a waste incineration power plant, the discharge door of the waste bin is kept in an open state during discharging, and the waste bin is kept at a certain negative pressure under the normal operation condition. This causes the air outside the garbage bin to continuously flow into the garbage bin, which causes the air pressure in the garbage bin to rise, and is not favorable for controlling the odor. When the temperature of the outside air is lower in autumn and winter, the temperature of the garbage bin can be directly reduced, and the fermentation effect in the garbage bin is affected.
Disclosure of Invention
To the problem that exists, the utility model discloses an effectively utilize the used heat of air compressor machine to do, set up hot-blast curtain, play the separation effect, improve rubbish fermentation effect, improve the generated energy, effectively prevent simultaneously that the interior foul smell of garbage bin is excessive, provide a garbage bin discharge door hot-blast curtain system based on air compressor machine used heat utilization.
The purpose of the invention is realized by the following technical scheme:
a garbage bin discharge door hot air curtain system based on air compressor waste heat utilization comprises a water storage tank, a hot air curtain device, a cold water pump, a gas heat recoverer, an oil heat recoverer and a hot water pump, wherein the water storage tank is connected with the cold water pump, the cold water pump is connected to a water inlet in the right lower part of the gas heat recoverer through a first cold water pipeline, a water outlet is formed in the upper left part of the gas heat recoverer, the water outlet of the gas heat recoverer is connected with the water inlet in the right lower part of the oil heat recoverer through a second cold water pipeline, a water outlet is formed in the upper left part of the oil heat recoverer, the water outlet of the oil heat recoverer is sequentially connected with the hot water pump and the; the hot oil recoverer is connected with the air compressor through an oil outlet pipeline at the right lower part and an oil return pipeline at the left lower part;
the hot air curtain device is arranged right above a door opening of a discharge door of the garbage bin and comprises an air supply box, a heating plate and a grid from top to bottom.
Furthermore, the water storage tank is cylinder type, and the tank deck is equipped with the exhaust hole, and the exhaust hole top is equipped with hemispherical dust hood, dust hood is supported by the welding at the peripheral billet of exhaust hole, and the back-off is in the top in exhaust hole.
Furthermore, a plurality of layers of S-shaped PVC film fillers are arranged above the inside of the water storage tank.
Furthermore, a plurality of groups of shower type stainless steel spray heads are installed at the top in the water storage tank.
Furthermore, a cold water pump front manual valve and a cold water pump front electric valve are arranged between the cold water pump and the water storage tank.
Furthermore, a manual valve in front of the hot water pump and an electric valve in front of the hot water pump are arranged between the hot water pump and the oil heat recoverer.
Furthermore, an overhaul bypass is arranged between the hot water pump and the section of the second hot water pipeline behind the hot air curtain device, and a bypass manual valve is arranged on the overhaul bypass.
Furthermore, the material of the air supply box is glass fiber reinforced plastic, and the material of the heating plate and the material of the grating are both 304 stainless steel.
Furthermore, the width of the hot air curtain device is larger than that of the door opening, and the left side and the right side of the hot air curtain device extend outwards for 5-15 cm along the edge of the door opening respectively.
The utility model discloses compare prior art's beneficial effect does:
1. the garbage bin discharge door hot air curtain system based on air compressor waste heat utilization utilizes two groups of heat exchange devices of the oil heat recoverer and the gas heat recoverer to respectively carry out water-oil heat exchange and water-gas heat exchange, reduces the temperature of lubricating oil and compressed air of the air compressor, recovers a large amount of waste heat generated by the air compressor in the working engineering, replaces the steam heating or electric heating mode of a conventional hot air curtain, reduces the consumption of steam or electric quantity in a factory, and indirectly reduces the power consumption of the factory;
2. the garbage bin discharging door hot air curtain system based on waste heat utilization of the air compressor utilizes the recovered heat to heat the air supply, forms a hot air curtain outside a door opening of a garbage bin discharging door, and plays a role in separating cold air, thereby not only reducing the oil temperature of lubricating oil of the air compressor, improving the compression efficiency of the air compressor, reducing the heat waste and the thermal pollution degree to the environment, but also solving the problem of door opening sealing when the garbage bin discharging door is opened;
3. hot-blast curtain system of garbage bin discharge door based on air compressor machine waste heat utilization, wherein in the operation of hot-blast curtain can prevent external cold air entering garbage bin effectively, play certain heat preservation effect to the fermentation environment in the garbage bin, avoided the foul smell in the garbage bin outward simultaneously.
Drawings
Fig. 1 is a schematic structural view of a hot air curtain system of a discharge door of a garbage bin based on waste heat utilization of an air compressor of the present invention;
the system comprises a water storage tank 1, a hot air curtain device 2, a cold water pump front manual valve 3, a cold water pump front electric valve 4, a cold water pump 5, a gas heat recoverer 6, an oil heat recoverer 7, a hot water pump front manual valve 8, a hot water pump front electric valve 9, a hot water pump 10, a bypass manual valve 11, an air compressor 12, a garbage bin discharge door 13, a discharge door opening 14 and a water storage tank water replenishing manual valve 15;
101-spray head, 102-filler, 103-dust-proof cover, 104-exhaust hole;
201-air supply box, 202-heating plate, 203-grating.
Detailed Description
As shown in fig. 1, the present embodiment provides a hot air curtain system of a discharge door of a garbage bin based on waste heat utilization of an air compressor, and the system includes a water storage tank 1, a hot air curtain device 2, a cold water pump 5, a gas heat recoverer 6, an oil heat recoverer 7 and a hot water pump 10.
The water storage tank 1 is cylindrical and has a total volume of 100m3Wherein the water storage volume accounts for about 30-40% of the total volume of the tank body. The tank body is made of carbon steel, the outer wall of the tank body is painted, and the inner wall of the tank body is subjected to anti-corrosion treatment. The tank top is provided withA circular exhaust hole 104 with the diameter of 30cm, and a hemispherical dustproof cover 103 is arranged above the exhaust hole 104. The ash-proof cover 103 is supported by four steel bars welded on the periphery of the exhaust hole and is reversely buckled above the hole opening, so that ash can be prevented from falling into the water storage tank. A plurality of layers of S-shaped PVC film fillers 102 are arranged above the interior of the water storage tank, and the total height of the fillers is 1.5 m. The top of the water storage tank is provided with a backwater main pipe and a branch pipe, the tail end of the branch pipe is provided with a plurality of groups of shower type stainless steel spray heads 101, and the spray heads are arranged at the top in the tank. When the return water used by the hot air curtain device flows back, the return water is firstly distributed to each branch pipe through the return water main pipe, then is sprayed onto the filler through the spray head 101, and then slowly flows into the lower half part of the tank body along each layer of the filler 102.
The water storage tank 1 is connected with a cold water pump 5, the cold water pump 5 is connected to a water inlet on the lower right of the gas heat recoverer 6 through a first cold water pipeline A, a water outlet is formed in the upper left of the gas heat recoverer 6, the water outlet of the gas heat recoverer 6 is connected with a water inlet on the lower right of the oil heat recoverer 7 through a second cold water pipeline B, a water outlet is formed in the upper left of the oil heat recoverer 7, the water outlet of the oil heat recoverer 7 is sequentially connected with a hot water pump 10 and a hot air curtain device 2 through a first hot water pipeline C, and the hot air curtain device 2 is conveyed back; the air compressor 12 is connected with an air inlet on the left side of the air heat recoverer 6 through an air pipeline E, and the hot oil recoverer 7 is connected with the air compressor 12 through an oil outlet pipeline F on the right lower side and an oil return pipeline G on the left lower side. In addition, a cold water pump front manual valve 3 and a cold water pump front electric valve 4 are arranged between the cold water pump 5 and the water storage tank 1; and a manual valve 8 in front of the hot water pump and an electric valve 9 in front of the hot water pump are arranged between the hot water pump and the oil heat recoverer 7.
The hot air curtain device 2 is arranged right above a door opening 14 of a discharge door 13 of the garbage bin and comprises an air supply box 201, a heating plate 202 and a grating 203 from top to bottom. The width of the hot air curtain device is larger than that of the door opening, the width of the sent hot air is slightly wider than that of the door opening, the left side and the right side of the hot air curtain device extend outwards for 5-15 cm along the edge of the door opening respectively, the air supply intensity is high enough, the wind power can reach the lowest end of the door opening, and the generated air curtain can completely cover the door opening. In order to prevent odor in the garbage bin from corroding the hot air curtain device, the heating plate 202, the grating 203 and the air duct are all made of 304 stainless steel, the air supply box 201 is made of glass fiber reinforced plastic, and an anticorrosive material is coated outside. The internal pipelines of the heating plate 202 are in a grid shape, and gaps are reserved among the pipelines. When hot water flows through the heating plate, the hot water exchanges heat with the supplied air and then is converged into the second hot water pipeline D.
An overhaul bypass H is arranged between the front part of the hot water pump 10 and the section of the second hot water pipeline D behind the hot air curtain device 2, and a bypass manual valve 11 is arranged on the overhaul bypass. During the period that the hot air curtain device 2 is not used or has a fault, the manual valve 8 in front of the hot water pump is closed, the manual bypass valve 11 is opened, and hot water is converged back to the second hot water pipeline D through the maintenance bypass H.
The elevation of the arrangement position of the hot air curtain device 2 is about 15m, the elevation of the oil and gas heat recoverer is 0 m-2 m, the height difference between devices in the system and the on-way resistance of each heat exchanger and each pipeline are considered, the cold water pump 5 and the hot water pump 10 are all provided with a multistage centrifugal pump, the rated flow is small, the design lift is large, and the water circulation requirement of the whole system can be met.
The work flow of the garbage bin discharge door hot air curtain system based on the waste heat utilization of the air compressor is as follows:
cold water collected in the water storage tank 1 is sent into an air heat recoverer 6 through a cold water pump 5, and exchanges heat with compressed air prepared by an air compressor 12. The first cold water pipe a enters from the lower right side of the air heat recovery unit 6 and exits from the upper left side, and the compressed air enters from the left side of the air heat recovery unit 6 and exits from the right side. The compressed air is conveyed to the next equipment for drying after heat exchange. The cold water and the compressed air adopt a countercurrent heat exchange mode. The gas heat recoverer 6 adopts a stainless steel shell-and-tube heat exchanger.
The water outlet of the gas heat recoverer 6 is fed into the oil heat recoverer 7 through a second cold water pipe B, and cold water in the oil heat recoverer 7 exchanges heat with high-temperature lubricating oil of the air compressor 12. And the lubricating oil is fed from the right side to the left side of the oil heat recovery unit 7. The lubricating oil flows back into the air compressor 12 after heat exchange. And a concurrent heat exchange mode is adopted between the cold water and the lubricating oil. The oil heat recoverer 7 adopts a full-brazed plate heat exchanger.
Compressed air prepared by normal operation of the air compressor 12 is sent into an air pipeline of the air heat recoverer 6 through an air pipeline E, exchanges heat with cold water in the air heat recoverer 6, reduces the temperature of the compressed air, is sent into subsequent compressed air processing equipment (such as an adsorption dryer) for drying, and is finally sent into a compressed air storage tank for storage.
High-temperature lubricating oil (about 90-95 ℃) generated when the air compressor 12 normally operates is connected to the oil heat recovery device 7 through the oil outlet pipeline F, and exchanges heat with cooling water sent by the water outlet pipeline behind the gas heat recovery device in the oil heat recovery device 7. After the oil temperature is reduced (about 55-60 ℃), the lubricating oil is returned to the air compressor 12 through the oil return pipeline G and continuously circulated.
After two-stage heat exchange of the gas heat recoverer 6 and the oil heat recoverer 7, the cooling water is heated into hot water with the temperature of about 55-65 ℃. Hot water is fed into the heating plate 202 of the hot air curtain device 2 by the hot water pump 10, and cold air fed from the air feeding box 201 above the heating plate 202 exchanges heat with the hot water in the plate. The wind temperature in spring and summer is increased from 15-25 ℃ to about 35-45 ℃, and the wind temperature in autumn and winter is increased from-5 ℃ to about 15-25 ℃. The hot air blown out from top to bottom forms an air curtain, plays a role in blocking the discharge door 13 of the garbage bin in the vertical direction, and isolates the space outside the garbage bin from the space inside the bin.
After the heat exchange of the hot water flowing through the heating plate 202 is completed, the hot water is sent back to the water storage tank 1 through the second hot water pipeline D. In the water storage tank 1, the returned warm water is sprayed to the cooling filler 102 arranged at the upper part in the water storage tank through the spray head in a spraying and heat-dissipating mode. The hot steam rises to take away part of the heat and is discharged through the exhaust hole 104 arranged on the water storage tank. In the process, the return water gradually dissipates heat and reduces the temperature. The cold water (the temperature is about 20-30 ℃) after the temperature reduction is sent back to the first cold water pipeline of the gas heat recoverer 6 through the cold water pump 5 and enters the next working cycle. The water storage tank is provided with a water replenishing pipeline, when the water level in the tank is reduced, the water lost due to heat dissipation can be replenished according to the requirement, and the water replenishing pipeline is provided with a water storage tank water replenishing manual valve 15.
The system controls the on-off of the water amount entering the gas heat recoverer 6 and the oil heat recoverer 7 through the switch of a manual valve in front of the pump, and the circulating flow of cold water and hot water is adjusted through an electric valve in front of the pump. The air quantity of the hot air curtain device 2 is adjusted through the opening of the air outlet of the air supply box.
When cold water needs to be supplemented in the water storage tank, the water supplementing manual valve is opened, and circulating cooling water from the water supplementing pipe network is injected into the tank. The tank bottom is provided with a sewage draining outlet, and sewage can be drained from the tank regularly.
Claims (9)
1. A hot air curtain system of a discharge door of a garbage bin based on waste heat utilization of an air compressor is characterized in that, the system comprises a water storage tank (1), a hot air curtain device (2), a cold water pump (5), a gas heat recoverer (6), an oil heat recoverer (7) and a hot water pump (10), the water storage tank (1) is connected with a cold water pump (5), the cold water pump (5) is connected to a water inlet at the lower right of a gas heat recoverer (6) through a first cold water pipeline (A), a water outlet is formed at the upper left of the gas heat recoverer (6), the water outlet of the gas heat recoverer (6) is connected with a water inlet at the lower right of an oil heat recoverer (7) through a second cold water pipeline (B), a water outlet is formed at the upper left of the oil heat recoverer (7), the water outlet of the oil heat recoverer (7) is sequentially connected with a hot water pump (10) and a hot air curtain device (2) through a first hot water pipeline (C), and the hot air curtain device (2) is conveyed back to the water storage tank (1); the air compressor (12) is connected with an air inlet at the left side of the gas heat recoverer (6) through an air pipeline (E), and the oil heat recoverer (7) is connected with the air compressor (12) through an oil outlet pipeline (F) at the lower right side and an oil return pipeline (G) at the lower left side;
the hot air curtain device (2) is arranged right above a door opening (14) of a discharge door (13) of the garbage bin and comprises an air supply box (201), a heating plate (202) and a grating (203) from top to bottom.
2. The garbage bin discharge door hot air curtain system based on air compressor waste heat utilization is characterized in that the water storage tank (1) is cylindrical, an exhaust hole (104) is formed in the top of the tank, a hemispherical dust cover (103) is arranged above the exhaust hole, and the dust cover is supported by steel bars welded on the periphery of the exhaust hole and is buckled upside down on the exhaust hole.
3. The garbage bin discharge door hot air curtain system based on air compressor waste heat utilization according to claim 1 or 2, characterized in that a plurality of layers of S-shaped PVC film fillers (102) are arranged above the inside of the water storage tank (1).
4. The garbage bin discharge door hot air curtain system based on air compressor waste heat utilization according to claim 1 or 2, characterized in that a plurality of groups of shower type stainless steel nozzles (101) are installed at the top inside the water storage tank (1).
5. The garbage bin discharge door hot air curtain system based on air compressor waste heat utilization according to claim 1 or 2, characterized in that a cold water pump front manual valve (3) and a cold water pump front electric valve (4) are arranged between the cold water pump (5) and the water storage tank (1).
6. The garbage bin discharge door hot air curtain system based on air compressor waste heat utilization is characterized in that a hot water pump front manual valve (8) and a hot water pump front electric valve (9) are arranged between the hot water pump and the oil heat recoverer (7).
7. The garbage bin discharge door hot air curtain system based on air compressor waste heat utilization is characterized in that a maintenance bypass (H) is arranged between the section of equipment from the front of the hot water pump (10) to the rear of the hot air curtain device (2) and the section of equipment of the second hot water pipeline (D), and a bypass manual valve (11) is arranged on the maintenance bypass.
8. The garbage bin discharge door hot air curtain system based on air compressor waste heat utilization of claim 1, wherein the material of the air supply box (201) is glass fiber reinforced plastic, and the material of the heating plate (202) and the material of the grating (203) are 304 stainless steel.
9. The garbage bin discharge door hot air curtain system based on air compressor waste heat utilization is characterized in that the width of the hot air curtain device (2) is larger than that of the door opening (14), and the left side and the right side of the hot air curtain device extend outwards for 5-15 cm along the edge of the door opening respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921388025.8U CN210509534U (en) | 2019-08-26 | 2019-08-26 | Hot air curtain system of garbage bin discharge door based on air compressor machine waste heat utilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921388025.8U CN210509534U (en) | 2019-08-26 | 2019-08-26 | Hot air curtain system of garbage bin discharge door based on air compressor machine waste heat utilization |
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| Publication Number | Publication Date |
|---|---|
| CN210509534U true CN210509534U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921388025.8U Active CN210509534U (en) | 2019-08-26 | 2019-08-26 | Hot air curtain system of garbage bin discharge door based on air compressor machine waste heat utilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210509534U (en) |
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2019
- 2019-08-26 CN CN201921388025.8U patent/CN210509534U/en active Active
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