CN211059017U - Heat energy recovery system for air compressor - Google Patents
Heat energy recovery system for air compressor Download PDFInfo
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- CN211059017U CN211059017U CN201921617856.8U CN201921617856U CN211059017U CN 211059017 U CN211059017 U CN 211059017U CN 201921617856 U CN201921617856 U CN 201921617856U CN 211059017 U CN211059017 U CN 211059017U
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Abstract
The utility model discloses a heat recovery system for air compressor, including air compressor, oil and gas separator, oil cooler, gas cooler, oil water heat exchanger, control module and circulating water tank, wherein, air compressor is connected to oil and gas separator, and oil and gas separator is connected to oil cooler and oil water heat exchanger through oil pipe and is connected to gas cooler through the trachea; the oil pipe is connected in series with a first three-way temperature control valve and a second three-way temperature control valve which are both electrically connected with the control module, and the oil-gas separator is communicated with the oil cooler or the oil-water heat exchanger through the first three-way temperature control valve and the second three-way temperature control valve; the oil-water heat exchanger comprises a water channel and an oil channel, wherein the water channel is correspondingly connected to a circulating water inlet and a circulating water outlet of the circulating water tank through two water pipes respectively. The air compressor heat energy recovery system effectively recovers the heat energy of the air compressor and converts the heat energy into hot water for supply, thereby saving energy and cost.
Description
Technical Field
The utility model belongs to the technical field of air compressor, concretely relates to a heat recovery system for air compressor.
Background
The air compressor is a power device with large energy consumption, and converts electric energy into mechanical energy and converts the mechanical energy into high-pressure compressed air in a long-term and continuous operation process. In the process of converting mechanical energy into high-pressure compressed air, a large amount of heat is generated, and the heat is carried out of the machine body through lubricating oil, and finally the heat is dissipated in an air cooling or water cooling mode. The temperature of the lubricating oil of the air compressor is usually 80 ℃ (winter) to 97 ℃ (summer and autumn), and the heat energy is discharged to the environment as waste heat in vain through a heat dissipation system of the air compressor, so that great energy waste is caused, and the energy conservation and the environmental protection are not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems existing in the prior art, the utility model provides a heat recovery system for air compressor. The to-be-solved technical problem of the utility model is realized through following technical scheme:
the utility model provides a heat energy recovery system for an air compressor, which comprises an air compressor, an oil-gas separator, an oil cooler, a gas cooler, an oil-water heat exchanger, a control module and a circulating water tank, wherein,
the air compressor is connected to the oil-gas separator, and the oil-gas separator is connected to the oil cooler and the oil-water heat exchanger through oil pipes and is connected to the gas cooler through a gas pipe;
the oil pipe is connected with a first three-way temperature control valve and a second three-way temperature control valve in series, the first three-way temperature control valve and the second three-way temperature control valve are electrically connected with the control module, and the oil-gas separator is communicated with the oil cooler or the oil-water heat exchanger through the first three-way temperature control valve and the second three-way temperature control valve;
the oil-water heat exchanger comprises a water channel and an oil channel, wherein the water channel is correspondingly connected to a circulating water inlet and a circulating water outlet of the circulating water tank through two water pipes respectively.
In an embodiment of the present invention, a first end of the first three-way temperature control valve is connected to both an oil input end of the oil-water heat exchanger and an output end of the oil-gas separator, a second end of the first three-way temperature control valve is connected to an oil output end of the oil-water heat exchanger, and a third end of the first three-way temperature control valve is connected to a first end of the second three-way temperature control valve;
and the second end of the second three-way temperature control valve is connected to the input end of the oil cooler, and the third end of the second three-way temperature control valve is connected to the air compressor.
In one embodiment of the present invention, the set temperature of the first three-way temperature control valve is 40-50 ℃; the set temperature of the first three-way temperature control valve is 60-80 ℃.
The utility model discloses an embodiment, circulation water tank's circulating water inlet with between the oil water heat exchanger be provided with two-way temperature-sensing valve and circulating pump on the water pipe, two-way temperature-sensing valve with the circulating pump all is connected to control module.
In an embodiment of the invention, a filter is arranged at the outlet of the gas cooler.
In an embodiment of the present invention, an oil temperature sensor is disposed at an oil outlet of the oil-gas separator, and a water temperature sensor is disposed at a water outlet of the oil-water heat exchanger;
the oil temperature sensor and the water temperature sensor are both connected to the control module.
In an embodiment of the present invention, a drain outlet is provided at the bottom of the circulation water tank.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a heat recovery system for air compressor can effectively retrieve air compressor heat energy, converts industry or domestic hot water into, has not only solved air compressor high temperature problem, increases equipment life, and the hot water that produces can supply to bathe or the heating use, energy saving and cost.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of a heat energy recovery system for an air compressor according to an embodiment of the present invention.
Description of reference numerals:
1-an air compressor; 2-an oil-gas separator; 3-an oil cooler; 4-a gas cooler; 5-oil-water heat exchanger; 51-a water channel; 52-oil channel; 6-a control module; 7-a circulating water tank; 8-an oil pipe; 9-trachea; 10-a first three-way temperature control valve; 11-a second three-way temperature control valve; 12-a water pipe; 13-oil temperature sensor; 14-water temperature sensor; 15-two-way temperature control valve; 16-a circulation pump; 17-a filter; and 18-a sewage draining outlet.
Detailed Description
In order to further explain the technical means and effects of the present invention adopted to achieve the objectives of the present invention, the following description will be made in conjunction with the accompanying drawings and the detailed description of the embodiments, which illustrate a heat energy recovery system for an air compressor according to the present invention.
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings. The technical means and effects of the present invention to achieve the predetermined objects can be more deeply and specifically understood through the description of the specific embodiments, however, the attached drawings are only for reference and description and are not intended to limit the technical solution of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or device comprising the element.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a heat energy recovery system for an air compressor according to an embodiment of the present invention. The heat energy recovery system of the embodiment comprises an air compressor 1, an oil-gas separator 2, an oil cooler 3, a gas cooler 4, an oil-water heat exchanger 5, a control module 6 and a circulating water tank 7.
The air compressor 1 is connected to the oil-gas separator 2, and can convey a high-temperature oil-gas mixture generated in the operation process of the air compressor to the oil-gas separator 2 through a pipeline, and the oil-gas separator 2 is used for separating the oil-gas mixture from the air compressor 1. The oil-gas separator 2 is connected to the oil cooler 3 and the oil-water heat exchanger 5 through an oil pipe 8 and is connected to the gas cooler 4 through a gas pipe 9, hot oil and hot gas can be respectively transmitted to the oil cooler 3 and the gas cooler 4 after separation, and the oil cooler 3 and the gas cooler 4 can respectively cool the hot oil and the hot gas.
In the present embodiment, the oil cooler 3 and the gas cooler 4 may use any suitable coolant known in the art and will not be described in detail here. The outlet of the gas cooler 4 is provided with a filter 17, the gas cooler 4 is used for cooling the hot gas separated by the oil-gas separator 2, the filter 17 is used for filtering impurities such as oil stains in the gas to be discharged, the pollution to the atmosphere is avoided, and the filtered gas is discharged into the ambient air.
Further, a first three-way temperature control valve 10 and a second three-way temperature control valve 11 are connected in series on the oil pipe 8, the first three-way temperature control valve 10 and the second three-way temperature control valve 11 are electrically connected with the control module 6, and the oil-gas separator 2 is communicated with the oil cooler 3 or the oil-water heat exchanger 5 through the first three-way temperature control valve 10 and the second three-way temperature control valve 11. That is, by controlling the on-off of the first three-way temperature control valve 10 and the second three-way temperature control valve 11, whether hot oil from the oil-gas separator 2 in the oil-gas separator passes through the oil cooler 3 and the oil-water heat exchanger 5 can be controlled.
The oil-water heat exchanger 5 comprises a water channel 51 and an oil channel 52, wherein the water channel 51 is correspondingly connected to a circulating water inlet and a circulating water outlet of the circulating water tank 7 through two water pipes 12. The hot oil that enters the oil passage 52 of the oil-water heat exchanger 5 can exchange heat with the circulating water from the circulating water tank 7 in the water passage 51, thereby storing the heat in the body of water.
Further, a first end of the first three-way temperature control valve 10 is connected with an oil input end of the oil-water heat exchanger 5 and an output end of the oil-gas separator 2 at the same time, a second end of the first three-way temperature control valve 10 is connected with an oil output end of the oil-water heat exchanger 5, and a third end of the first three-way temperature control valve 10 is connected with a first end of the second three-way temperature control valve 11; the second end of the second three-way temperature control valve 11 is connected to the input end of the oil cooler 3, and the third end of the second three-way temperature control valve 11 is connected to the air compressor 1.
In the actual operation process, when the air compressor is started in a cold state, the temperature of lubricating oil is low, when the lubricating oil separated by the oil-gas separator 2 passes through the first three-way temperature control valve 10, the opening temperature of the valve at one end of the oil-water heat exchanger 5 is not reached, the valve at one end of the oil-water heat exchanger 5 is closed, the lubricating oil does not pass through the oil-water heat exchanger 5 and reaches the second three-way temperature control valve 11, at the moment, the opening temperature of the valve at one end of the oil cooler 3 is not reached, the valve at one end of the oil cooler 3 is closed, at the moment, the lubricating oil directly enters the compressor head without passing through the oil-water heat exchanger.
After the air compressor operates for a period of time, the temperature of the lubricating oil rises, when the lubricating oil separated by the oil-gas separator 2 passes through the first three-way temperature control valve 10, the opening temperature of the valve at one end of the oil-water heat exchanger 5 is reached, the valve at one end of the oil-water heat exchanger 5 is opened, the lubricating oil passes through the oil-water heat exchanger 5 and reaches the second three-way temperature control valve 11, at the moment, the temperature of the lubricating oil still does not reach the opening temperature of the valve at one end of the oil cooler 3, the valve at one end of the oil cooler 3 is closed, at the moment, the lubricating oil passes through the oil-water heat exchanger 5 and does not pass through the cooling.
The temperature of the lubricating oil is continuously increased along with the continuous operation of the air compressor, when the lubricating oil separated by the oil-gas separator 2 passes through the first three-way temperature control valve 10, the opening temperature of the valve at one end of the oil-water heat exchanger 5 is reached, the valve at one end of the oil-water heat exchanger 5 is opened, the lubricating oil passes through the oil-water heat exchanger 5 and reaches the second three-way temperature control valve 11, at the moment, the temperature of the lubricating oil is still higher than the opening temperature of the valve at one end of the oil cooler 3, the valve at one end of the oil cooler 3 is opened, at the moment, the lubricating oil sequentially passes through the oil-water heat exchanger 5 and the oil cooler 3 to be.
In addition, when hot water in the oil-water heat exchanger 5 is temporarily not needed and the supply is stopped, heat exchange does not occur in the oil-water heat exchanger 5, at this time, namely, the lubricating oil does not pass through the oil-water heat exchanger 5 and reaches the second three-way temperature control valve 11, the temperature of the lubricating oil is kept at a high temperature state at this time, the temperature is higher than the opening temperature of the valve at one end of the oil cooler 3, the valve at one end of the oil cooler 3 is opened, and at this time, the lubricating oil is cooled by the oil cooler 3 and then enters the head of the compressor so as to ensure.
Further, the set temperature of the first three-way temperature control valve 10 is 40-50 ℃; the set temperature of the first three-way temperature control valve 10 is 60-80 ℃. In the present embodiment, it is preferable that the set temperature of the first three-way thermo valve 10 is 49 ℃; the set temperature of the first three-way thermo-valve 10 is 71 ℃.
The water channel 51 is correspondingly connected to a circulating water inlet and a circulating water outlet of the circulating water tank 7 through two water pipes 12, respectively, so as to perform water circulation with the circulating water tank 7, that is, the heated water in the water channel 51 is transmitted to the circulating water tank 7, and meanwhile, a low-temperature water body is supplemented from the circulating water tank 7. Further, a two-way temperature control valve 15 and a circulating pump 16 are arranged on a water pipe 12 between a circulating water inlet of the circulating water tank 7 and the oil-water heat exchanger 5, and both the two-way temperature control valve 15 and the circulating pump 16 are connected to the control module 6. The two-way temperature control valve 15 is used for controlling the water temperature entering the circulating water tank 7 from the oil-water heat exchanger 5, and when the temperature is higher than the set temperature, the two-way temperature control valve 15 is opened, so that hot water enters the circulating water tank 7 from the oil-water heat exchanger 5, and the opening temperature of the two-way temperature control valve 15 can be set through the control module 6 according to actual needs.
The oil outlet of the oil-gas separator 2 is provided with an oil temperature sensor 13, the water outlet of the oil-water heat exchanger 5 is provided with a water temperature sensor 14, the oil temperature sensor 13 and the water temperature sensor 14 are both connected to the control module 6, the oil temperature sensor 13 is used for collecting the temperature of the high-temperature lubricating oil from the oil-gas separator 2 in real time and transmitting the temperature to the control module 6, the control module 6 of the embodiment comprises a display screen and can display the collected data in real time, similarly, the water temperature sensor 14 can collect the temperature of the hot water obtained through the thermal circulation in the heat energy recovery device 3 in real time and transmit the temperature to the control module 6 and display the temperature on the display screen, the control module 6 can perform analysis and calculation according to the obtained oil temperature data and water temperature data and control the operation of the circulating pump 16 to perform the water circulation between the oil-water heat exchanger 5 and the circulating water tank 7, in the embodiment, the control module 6 is arranged on the oil-.
Further, a drain outlet 18 is formed in the bottom of the circulating water tank 7, so that the circulating water tank 7 can be cleaned regularly.
Illustratively, the air compressor 1 of the present embodiment is an oil-injected screw air compressor, and includes a worm cavity and a worm assembly located inside the worm cavity, and the lubricating oil after being cooled circularly is returned to the worm cavity. In actual operation, a motor in the air compressor drives a worm assembly to rotate, air is sucked into a worm machine cavity through a filter and is compressed into high-pressure air, the high-pressure air and lubricating oil are mixed to form high-pressure high-temperature oil-gas mixed gas, the high-pressure high-temperature oil-gas mixed gas is conveyed into an oil-gas separator, and oil-gas separation is carried out in the oil-gas separator; when the temperature of the lubricating oil is higher than a certain temperature, the separated high-pressure gas and high-temperature oil are delivered to the oil-water heat exchanger 5, the heat energy stored in the high-temperature oil is converted into water through heat transfer, and the heated water is delivered and stored into the circulating water tank 7 for multipurpose use, such as domestic hot water supply. The gas after heat dissipation is discharged into the air after being filtered, and the oil after heat dissipation is input into the cavity of the worm machine again through the oil pipe for continuous use.
The air compressor heat recovery system of this embodiment can convert air compressor heat energy into industry or domestic hot water effectively, has not only solved air compressor high temperature problem, increases equipment life, and the hot water that produces can supply to bathe or the heating use, energy saving and cost.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (7)
1. A heat energy recovery system for an air compressor is characterized by comprising an air compressor (1), an oil-gas separator (2), an oil cooler (3), a gas cooler (4), an oil-water heat exchanger (5), a control module (6) and a circulating water tank (7), wherein,
the air compressor (1) is connected to the oil-gas separator (2), the oil-gas separator (2) is connected to the oil cooler (3) and the oil-water heat exchanger (5) through an oil pipe (8) and is connected to the gas cooler (4) through an air pipe (9);
a first three-way temperature control valve (10) and a second three-way temperature control valve (11) are connected to the oil pipe (8) in series, the first three-way temperature control valve (10) and the second three-way temperature control valve (11) are electrically connected with the control module (6), and the oil-gas separator (2) is communicated with the oil cooler (3) or the oil-water heat exchanger (5) through the first three-way temperature control valve (10) and the second three-way temperature control valve (11);
the oil-water heat exchanger (5) comprises a water channel (51) and an oil channel (52), wherein the water channel (51) is correspondingly connected to a circulating water inlet and a circulating water outlet of the circulating water tank (7) through two water pipes (12) respectively.
2. The heat energy recovery system for the air compressor as claimed in claim 1, wherein a first end of the first three-way thermostatic valve (10) is connected with an oil input end of the oil-water heat exchanger (5) and an output end of the oil-gas separator (2) at the same time, a second end of the first three-way thermostatic valve (10) is connected with an oil output end of the oil-water heat exchanger (5), and a third end of the first three-way thermostatic valve (10) is connected with a first end of the second three-way thermostatic valve (11);
the second end of the second three-way temperature control valve (11) is connected to the input end of the oil cooler (3), and the third end of the second three-way temperature control valve (11) is connected to the air compressor (1).
3. The heat energy recovery system for air compressor as claimed in claim 1, wherein the set temperature of the first three-way temperature controlled valve (10) is 40-50 ℃; the set temperature of the first three-way temperature control valve (10) is 60-80 ℃.
4. The heat energy recovery system for air compressor according to claim 1, characterized in that a two-way thermostat valve (15) and a circulation pump (16) are provided on the water pipe (12) between the circulating water inlet of the circulating water tank (7) and the oil-water heat exchanger (5), both the two-way thermostat valve (15) and the circulation pump (16) being connected to the control module (6).
5. The thermal energy recovery system for an air compressor according to claim 1, characterized in that a filter (17) is provided at the outlet of the gas cooler (4).
6. The heat energy recovery system for the air compressor as claimed in claim 1, characterized in that an oil temperature sensor (13) is arranged at an oil outlet of the oil-gas separator (2), and a water temperature sensor (14) is arranged at a water outlet of the oil-water heat exchanger (5); the oil temperature sensor (13) and the water temperature sensor (14) are both connected to the control module (6).
7. The heat energy recovery system for an air compressor according to any one of claims 1 to 6, characterized in that the bottom of the circulation tank (7) is provided with a sewage drain (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921617856.8U CN211059017U (en) | 2019-09-26 | 2019-09-26 | Heat energy recovery system for air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921617856.8U CN211059017U (en) | 2019-09-26 | 2019-09-26 | Heat energy recovery system for air compressor |
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| CN211059017U true CN211059017U (en) | 2020-07-21 |
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| CN201921617856.8U Active CN211059017U (en) | 2019-09-26 | 2019-09-26 | Heat energy recovery system for air compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855499A (en) * | 2020-12-30 | 2021-05-28 | 中盐华能储能科技有限公司 | Method for controlling inlet temperature of cascade compressor of compressed air energy storage power station |
-
2019
- 2019-09-26 CN CN201921617856.8U patent/CN211059017U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855499A (en) * | 2020-12-30 | 2021-05-28 | 中盐华能储能科技有限公司 | Method for controlling inlet temperature of cascade compressor of compressed air energy storage power station |
| CN112855499B (en) * | 2020-12-30 | 2022-04-19 | 中盐华能储能科技有限公司 | Method for controlling inlet temperature of cascade compressor of compressed air energy storage power station |
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