CN211146893U - Hot water system combining air compressor waste heat and air energy heat pump - Google Patents
Hot water system combining air compressor waste heat and air energy heat pump Download PDFInfo
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- CN211146893U CN211146893U CN201921799334.4U CN201921799334U CN211146893U CN 211146893 U CN211146893 U CN 211146893U CN 201921799334 U CN201921799334 U CN 201921799334U CN 211146893 U CN211146893 U CN 211146893U
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Abstract
The utility model relates to an energy saving and emission reduction technical field especially relates to an utilize hot water system that air compressor machine waste heat and air energy heat pump unite. The hot water system comprises an air compressor waste heat heating device, an air energy heat pump heating device and a first water storage tank, the air compressor waste heat heating device and the air energy heat pump heating device are arranged in parallel, the second water storage tank is communicated with a hot water main pipeline through a first hot water outlet pipeline, and the third water storage tank is communicated with the hot water main pipeline through a second hot water outlet pipeline. This hot-water heating system preferentially adopts air compressor machine waste heat heating device to heat, utilizes the air compressor machine waste heat effectively, also utilizes used heat to promote the temperature when maintaining the normal, safe operation of air compressor machine, when the heat supply breach appears, increases and supplys the heat source, and operation air can heat pump heating device, has improved the stability of hot-water heating system when the air compressor machine does not operate or can not satisfy the heat demand.
Description
Technical Field
The utility model relates to an energy saving and emission reduction technical field especially relates to an utilize hot water system that air compressor machine waste heat and air energy heat pump unite.
Background
The air compressor machine can consume a large amount of electric energy as compressed air's producer in process of production, and the electric energy of overwhelming majority will convert heat energy into, and these heat energy are usually through cooling blower, refrigerated water, and modes and equipment such as cooling tower, cooling water pump help dispel the heat to the external world to maintain normal, the safe operation of air compressor machine.
The heat energy generated by the air compressor is not utilized, and additional energy is consumed to help cooling, which further causes heat pollution. Therefore, the heat energy of the air compressor is recycled, the comprehensive utilization of energy is greatly improved, and the heat/gas co-production can be realized.
In the existing air compressor waste heat utilization technology, waste heat generated in the compression process of an air compressor is generally recovered by using water as a medium through an air compressor waste heat recovery device. The waste heat is utilized to raise the water temperature, and then the hot water is conveyed to the heat storage water tank through the circulating water pump, so that the hot water requirement of a user is met, and the energy-saving purpose is achieved.
However, in practical situations, the air compressor is affected by environmental conditions and other factors, and is not operated continuously, and particularly, when the air compressor is overhauled or fails to operate, a stable heat source cannot be provided to generate hot water.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To the technical problem that exists now, the utility model provides an utilize hot water system that air compressor machine waste heat and air energy heat pump are united has solved among the prior art low, the unstable problem of hot water system of energy utilization.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
the utility model provides a hot water system combining air compressor waste heat and an air energy heat pump, which comprises an air compressor waste heat heating device, an air energy heat pump heating device and a first water storage tank;
the air compressor waste heat heating device comprises an air compressor, a waste heat recovery device, a second water storage tank, a second booster pump and a first circulating pipeline, wherein the second water storage tank and the second booster pump are arranged on the first circulating pipeline in series;
the first circulating pipeline passes through the waste heat recovery device;
the waste heat recovery device comprises a heat exchanger, a three-way temperature control valve and a control switch valve which are arranged in series, and is respectively communicated with an oil cooler of the air compressor and an oil-gas separator of the air compressor through pipelines;
the air energy heat pump heating device comprises a third water storage tank, a third booster pump, an air energy heat pump and
the third water storage tank, the third booster pump and the air energy heat pump are arranged on the second circulating pipeline in series;
a cold water inlet of the second water storage tank is communicated with a cold water end through a pipeline, and a hot water outlet of the second water storage tank is communicated with the first water storage tank through a pipeline and a first booster pump;
the cold water inlet of the third water storage tank is communicated with the cold water end through a pipeline, and the hot water outlet of the third water storage tank is communicated with the first water storage tank through a pipeline and a first booster pump.
According to the utility model discloses, cold water inlet pipe says through the cold water entry intercommunication of cold water inlet first branch pipeline and second storage water tank, and cold water inlet pipe says through the cold water inlet intercommunication of cold water inlet second branch pipeline and third storage water tank, is equipped with first ooff valve on the cold water inlet first branch pipeline, is equipped with the second ooff valve on the cold water inlet second branch pipeline.
According to the utility model discloses, air compressor machine waste heat heating device still is equipped with electronic proportional valve.
According to the utility model discloses, air energy heat pump is circulation heating formula air energy heat pump.
According to the utility model discloses, first booster pump, second booster pump and third booster pump are the inverter pump.
According to the utility model discloses, be equipped with the third ooff valve on the first hot water outlet pipe way, be equipped with the fourth ooff valve on the second hot water outlet pipe way.
(III) advantageous effects
The utility model has the advantages that:
the utility model provides a pair of utilize hot water heating system that air compressor machine waste heat and air energy heat pump are united, air compressor machine waste heat heating device and the parallelly connected setting of air energy heat pump heating device, hot water system preferentially adopts the heating of air compressor machine waste heat heating device, effectively utilize the air compressor machine waste heat, it is normal to maintain the air compressor machine, also utilize waste heat to promote the temperature when the safe operation, when the heat supply breach appears, the increase supplements the heat source, operation air energy heat pump heating device, the stability of hot water system when the air compressor machine does not operate or can not satisfy the heat demand has been improved.
Drawings
Fig. 1 is the utility model discloses an utilize air compressor machine waste heat and air energy heat pump combined's hot water system's overall structure schematic diagram.
[ description of reference ]
1: a first water storage tank; 2: a second water storage tank; 3: a second booster pump;
4: a first circulation line; 5: a waste heat recovery device; 51: a heat exchanger;
52: a three-way temperature control valve; 53: controlling the switch valve; 6: a third water storage tank;
7: a third booster pump; 8: an air-source heat pump; 9: a second circulation line;
10: a first booster pump; 11: a first branch pipeline for cold water to enter;
12: a cold water inlet second branch pipeline; 13: a first on-off valve; 14: a second on-off valve;
15: an electrically operated proportional valve; 16: a first hot water outlet pipeline; 17: a second hot water outlet pipeline;
18: a third on-off valve; 19: a fourth switching valve; 20: an oil cooler;
21: and an oil-gas separator.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
The embodiment provides a hot water system combining air compressor waste heat and an air energy heat pump, which comprises an air compressor waste heat heating device, an air energy heat pump heating device and a first water storage tank 1.
The air compressor waste heat heating device comprises an air compressor, a waste heat recovery device 5, a second water storage tank 2, a second booster pump 3 and a first circulating pipeline 4, wherein the second water storage tank 2 and the second booster pump 3 are arranged on the first circulating pipeline 4 in series, and the first circulating pipeline 4 penetrates through the waste heat recovery device 5. The waste heat recovery device 5 comprises a heat exchanger 51, a three-way temperature control valve 52 and a control switch valve 53 which are arranged in series, the waste heat recovery device 5 is communicated with an oil cooler 20 of an air compressor and an oil-gas separator 21 of the air compressor respectively through pipelines, wherein the three-way temperature control valve 52 automatically controls the flow direction of oil according to the oil spraying temperature of the air compressor, the three-way temperature control valve 52 is switched back to an original air compressor system and does not enter the heat exchanger 51 when the oil temperature is lower than a set temperature, and the oil temperature in the oil cooler 20 is prevented from being too low and diluted to release condensate water to.
The air energy heat pump heating device comprises a third water storage tank 6, a third booster pump 7, an air energy heat pump 8 and a second circulating pipeline 9, wherein the third water storage tank 6, the third booster pump 7 and the air energy heat pump 8 are arranged on the second circulating pipeline 9 in series. The cold water inlet of the second water storage tank 2 is communicated with the cold water end through a pipeline, the hot water outlet of the second water storage tank 2 is communicated with the first water storage tank 1 through a pipeline by a first booster pump 10, the cold water inlet of the third water storage tank 6 is communicated with the cold water end by a pipeline, and the hot water outlet of the third water storage tank 6 is communicated with the first water storage tank 1 through a pipeline by a first booster pump 10.
In practical application, cold water is preferentially heated by adopting an air compressor waste heat heating device, and when a heat supply gap occurs, a supplementary heat source is added to operate the air energy heat pump heating device. In this embodiment, the waste heat of the air compressor is effectively utilized, the water temperature is increased by utilizing the waste heat while the normal and safe operation of the air compressor is maintained, and the water temperature of the water can be heated to 60 ℃ by oil-water heat exchange, so that the hot water requirement of a user is met, the energy utilization rate is improved, and the purposes of energy conservation and emission reduction are achieved. Meanwhile, the combined air energy heat pump 8 is used as a supplementary heat source, and when the air compressor does not operate or cannot meet heat requirements, the stability of the hot water system is improved.
The air-source heat pump 8 is a device for preparing hot water by energy conversion, is a device for efficiently collecting heat and transferring heat, and mainly comprises a compressor, an air heat exchanger (evaporator), a water heat exchanger (condenser) and an expansion valve (throttle valve). The transportation of low-temperature heat energy to high-temperature heat energy is realized, the energy efficiency ratio can reach 4-6, and the power consumption is low. The energy efficiency ratio of the air energy heat pump 8 changes along with the temperature change, the higher the environmental temperature is, the higher the thermal efficiency is, the remarkable energy saving effect is achieved in non-heating seasons, particularly in summer, and the environmental adaptability is also high. And the air energy heat pump 8 is a clean and renewable energy source, the heating effect is ensured, no pollutant is discharged, and the occupied area is relatively small.
Specifically, the first hot water outlet pipeline 16 is provided with a third on-off valve 18, and the second hot water outlet pipeline 17 is provided with a fourth on-off valve 19. The third switch valve 18 and the fourth switch valve 19 can respectively control the first hot water outlet pipeline 16 and the second hot water outlet pipeline 17 to be switched on and off according to the final outlet water temperature set in the hot water system.
Specifically, the first on-off valve 13 is opened, the third on-off valve 18 is closed, cold water is input, and the hot water heated by the waste heat recovery device 5 is stored in the second water storage tank 2. The third switching valve 18 is opened and the first switching valve 13 is closed to deliver the hot water to the first storage tank 1 by the first pressurizing pump 10. After the third on-off valve 18 is closed, the second water storage tank 2 can also store hot water. In practical application, when the waste heat provided by the normal operation of the air compressor is sufficient, the first switch valve 13 is opened, the second switch valve 14 is closed, cold water is preferentially heated by the air compressor waste heat heating device, and the waste heat of the air compressor is fully utilized.
Further, the air compressor waste heat heating device is also provided with an electric proportional valve 15, and the electric proportional valve 15 can realize remote control and can continuously and proportionally control the pressure and flow of a hydraulic system. In practical application, the opening degree of the electric proportional valve 15 is automatically adjusted according to the temperature of the heat recovery outlet water.
Specifically, the air-source heat pump 8 is a circulation heating type air-source heat pump, when the air-source heat pump heating device is operated, the second switch valve 14 is opened, the fourth switch valve 19 is closed, cold water is input, the cold water flows through the condenser inside the air-source heat pump 8 for multiple times through the third booster pump 7 and gradually reaches the temperature set by the user, and when the fourth switch valve 19 is opened, the second switch valve 14 is closed, and hot water in the third water storage tank 6 is delivered to the first water storage tank 1 through the first booster pump 10. The third storage tank 6 can also store hot water after the fourth switching valve 19 is closed. The rated power of the air energy heat pump 8 is smaller, and the operation cost is saved.
Further, the first booster pump 10, the second booster pump 3 and the third booster pump 7 are all variable frequency pumps. In practical application, the booster pump adopts a variable frequency pump, and the operation flow can be adjusted according to the operation condition of the air compressor and the waste heat condition.
The working process of the hot water system combining the waste heat of the air compressor and the air energy heat pump 8 is as follows:
in the hot water system, cold water is preferentially heated by adopting an air compressor waste heat heating device, firstly, the cold water enters the second water storage tank 2 through the cold water inlet first branch pipeline 11, the cold water enters the waste heat recovery device 5 through the second water storage tank 2 to be heated and then is stored in the second water storage tank 2, when the water temperature does not reach the set temperature, the cold water continues to be circularly heated through the waste heat recovery device 5, and after the temperature requirement is met, the cold water enters the first water storage tank 1.
When a heat supply gap occurs, a supplementary heat source is added, and meanwhile, an air energy heat pump heating device is operated; when the air compressor waste heat heating device is stopped, the air energy heat pump heating device is operated independently. Cold water enters the third water storage tank 6 through the cold water inlet second branch pipeline 12, the cold water enters the air energy heat pump heating device through the third water storage tank 6 to be heated and then is stored in the third water storage tank 6, when the water temperature does not reach the set temperature, the cold water continues to be circularly heated through the air energy heat pump heating device, and after the water temperature reaches the temperature requirement, the cold water enters the first water storage tank 1.
The hot water system is mainly applied to bathing water and domestic water of users in large factories and dormitory living quarters, the hot water can be used in peak time periods and valley time periods, the first water storage tank 1, the second water storage tank 2 and the third water storage tank 6 respectively adjust the water storage capacity according to the peak time periods, and the stability of the hot water system is improved.
The hot water system that utilizes air compressor machine waste heat and air energy heat pump to unite that this embodiment provided, air compressor machine waste heat heating device and air energy heat pump heating device parallel arrangement, hot water system preferentially adopts air compressor machine waste heat heating device to heat, utilizes the air compressor machine waste heat effectively, also utilizes waste heat to promote the temperature when maintaining the air compressor machine normal, safe operation. When a heat supply gap occurs, a supplementary heat source is added, the air energy heat pump heating device is operated, and meanwhile, when the temperature does not reach the set temperature, the air compressor waste heat heating device and the air energy heat pump heating device can respectively perform circulating heating. The stability of the hot water system is improved.
It should be understood that the above description of the embodiments of the present invention is only for illustrating the technical lines and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, but the present invention is not limited to the above specific embodiments. All changes and modifications that come within the scope of the claims are to be embraced within their scope.
Claims (6)
1. A hot water system combining air compressor waste heat and an air energy heat pump is characterized by comprising an air compressor waste heat heating device, an air energy heat pump heating device and a first water storage tank;
the waste heat heating device of the air compressor comprises the air compressor, a waste heat recovery device, a second water storage tank, a second booster pump and a first circulating pipeline, wherein the second water storage tank and the second booster pump are arranged on the first circulating pipeline in series;
the first circulating pipeline penetrates through the waste heat recovery device;
the waste heat recovery device comprises a heat exchanger, a three-way temperature control valve and a control switch valve which are arranged in series, and is respectively communicated with an oil cooler of the air compressor and an oil-gas separator of the air compressor through pipelines;
the air energy heat pump heating device comprises a third water storage tank, a third booster pump, an air energy heat pump and a second circulating pipeline, wherein the third water storage tank, the third booster pump and the air energy heat pump are arranged on the second circulating pipeline in series;
a cold water inlet of the second water storage tank is communicated with a cold water end through a pipeline, and a hot water outlet of the second water storage tank is communicated with the first water storage tank through a first hot water outlet pipeline and a first booster pump;
and a cold water inlet of the third water storage tank is communicated with a cold water end through a pipeline, and a hot water outlet of the third water storage tank is communicated with the first water storage tank through a second hot water outlet pipeline by passing through the first booster pump.
2. The hot water system combined with the air-source heat pump by using the waste heat of the air compressor as claimed in claim 1, wherein the cold water inlet pipeline is communicated with a cold water inlet of the second water storage tank through a cold water inlet first branch pipeline, the cold water inlet pipeline is communicated with a cold water inlet of the third water storage tank through a cold water inlet second branch pipeline, the cold water inlet first branch pipeline is provided with a first switch valve, and the cold water inlet second branch pipeline is provided with a second switch valve.
3. The water heating system combining the air compressor waste heat and the air-source heat pump according to claim 2, wherein the air compressor waste heat heating device is further provided with an electric proportional valve.
4. The hot water system combining air compressor waste heat and air-source heat pump according to claim 3, characterized in that the air-source heat pump is a circulation heating type air-source heat pump.
5. The hot water system combining air compressor waste heat and air energy heat pump according to claim 4, wherein the first booster pump, the second booster pump and the third booster pump are all variable frequency pumps.
6. The hot water system utilizing the waste heat of the air compressor and the air-source heat pump as claimed in claim 5, wherein a third switch valve is arranged on the first hot water outlet pipeline, and a fourth switch valve is arranged on the second hot water outlet pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921799334.4U CN211146893U (en) | 2019-10-24 | 2019-10-24 | Hot water system combining air compressor waste heat and air energy heat pump |
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| CN201921799334.4U CN211146893U (en) | 2019-10-24 | 2019-10-24 | Hot water system combining air compressor waste heat and air energy heat pump |
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| CN211146893U true CN211146893U (en) | 2020-07-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631255A (en) * | 2019-10-24 | 2019-12-31 | 国电龙源节能技术有限公司上海分公司 | Hot water system combining air compressor waste heat and air energy heat pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631255A (en) * | 2019-10-24 | 2019-12-31 | 国电龙源节能技术有限公司上海分公司 | Hot water system combining air compressor waste heat and air energy heat pump |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 217-7, 1158 Xiehe Road, Changning District, Shanghai 200335 Patentee after: Guoneng Longyuan Lantian Energy Saving Technology Co.,Ltd. Shanghai Branch Address before: Room 217-7, 1158 Xiehe Road, Changning District, Shanghai 200335 Patentee before: Guodian Longyuan Energy Saving Technology Co.,Ltd. Shanghai Branch |
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| CP01 | Change in the name or title of a patent holder |