CN214536901U - Natural working medium heat pump steam and hot water combined supply generation system - Google Patents
Natural working medium heat pump steam and hot water combined supply generation system Download PDFInfo
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- CN214536901U CN214536901U CN202023224235.9U CN202023224235U CN214536901U CN 214536901 U CN214536901 U CN 214536901U CN 202023224235 U CN202023224235 U CN 202023224235U CN 214536901 U CN214536901 U CN 214536901U
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Abstract
The utility model provides a steam and hot water combined supply generating system of a natural working medium heat pump, which comprises a carbon dioxide heat pump system and a steam generating system; the carbon dioxide heat pump system comprises a carbon dioxide compressor, an air cooler, an evaporator, a gas-liquid separator, a first expansion valve and an ejector; the water vapor generation system comprises a water supply pipeline and a water vapor generation pipeline. The utility model provides a natural working medium heat pump steam and hot water combined supply generating system, selects carbon dioxide and water as circulating working medium, can satisfy the demand of high heat supply temperature, can not produce the influence to the environment again; and the carbon dioxide heat pump system comprises two throttling modes, namely an expansion valve throttling mode and an ejector throttling mode, so that the system is ensured to operate under the optimal high-side pressure.
Description
Technical Field
The utility model relates to a heat pump technology field especially relates to a natural working medium heat pump steam hot water allies oneself with confession generating system.
Background
The production and utilization of heat energy are always accompanied with the birth and development of human civilization, and with the continuous development of society and industry, the demand and quality requirements of heat energy are higher and higher. The water is used as an excellent medium for heat energy transfer and is widely applied to various fields of industry, agriculture, medicine, commerce and the like. At present, high-temperature water and steam in China are mainly generated by consuming fossil energy mainly comprising coal, so that the energy consumption is high, and the influence on the environment is large. In order to reduce energy consumption and relieve environmental pressure, heat pump technology is gradually applied to steam hot water generating devices in recent years. The traditional heat pump has low heating temperature, generally below 80 ℃, and the traditional heat pump working media (such as R22, R134a and the like) are not environment-friendly, so that environmental problems such as ozone holes, global warming and the like can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a natural working medium heat pump steam and hot water allies oneself with and supplies emergence system, when aiming at satisfying the demand of high heating temperature, can not produce the influence to the environment again.
The utility model provides a steam and hot water combined supply generating system of a natural working medium heat pump, which comprises a carbon dioxide heat pump system and a steam generating system;
the carbon dioxide heat pump system comprises a carbon dioxide compressor, an air cooler, an evaporator, a gas-liquid separator, a first expansion valve and an ejector;
an inlet and an outlet of the carbon dioxide compressor are respectively communicated with an air outlet of the gas-liquid separator and a first heat exchange side inlet of the air cooler;
a first heat exchange side outlet of the air cooler is communicated with an inlet of the first expansion valve and a working fluid inlet of the ejector;
the mixed fluid outlet of the ejector is communicated with the inlet of the gas-liquid separator;
a first heat exchange side inlet of the evaporator is communicated with an outlet of the first expansion valve and a liquid outlet of the gas-liquid separator, and a first heat exchange side outlet of the evaporator is communicated with an injection fluid inlet of the ejector and an inlet of the gas-liquid separator;
the water vapor generation system comprises a water supply pipeline and a water vapor generation pipeline, the water supply pipeline is communicated with the second heat exchange side inlet of the air cooler, and the water vapor generation pipeline is communicated with the second heat exchange side outlet of the air cooler.
According to the utility model, a natural working medium heat pump steam and hot water combined supply generation system is provided, a first heat exchange side inlet of an evaporator is communicated with a liquid outlet of a gas-liquid separator through a second expansion valve;
and the inlet and the outlet of the second expansion valve are respectively communicated with the liquid outlet of the gas-liquid separator and the inlet of the first heat exchange side of the evaporator.
According to the utility model provides a natural working medium heat pump steam and hot water combined supply generation system, the outlet of the carbon dioxide compressor is communicated with the inlet of the first heat exchange side of the air cooler through a safety valve and an oil separator;
the inlet and the outlet of the safety valve are respectively communicated with the outlet of the carbon dioxide compressor and the inlet of the oil separator;
and the outlet of the oil separator is communicated with the first heat exchange side inlet of the air cooler.
According to the utility model provides a natural working medium heat pump steam and hot water combined supply generation system, the carbon dioxide heat pump system also comprises a heat regenerator;
a first heat exchange side inlet of the heat regenerator is communicated with a first heat exchange side outlet of the air cooler, and a first heat exchange side outlet of the heat regenerator is communicated with an inlet of the first expansion valve and a working fluid inlet of the ejector;
and an inlet and an outlet of the second heat exchange side of the heat regenerator are respectively communicated with the gas outlet of the gas-liquid separator and the inlet of the carbon dioxide compressor.
According to the utility model provides a natural working medium heat pump steam and hot water combined supply generation system, the carbon dioxide heat pump system also comprises a subcooler;
a first heat exchange side inlet of the subcooler is communicated with a first heat exchange side outlet of the heat regenerator, and a first heat exchange side outlet of the subcooler is communicated with an inlet of the first expansion valve and a working fluid inlet of the ejector;
the water supply pipeline comprises a water storage tank and a water supply pump, a water outlet of the water storage tank is communicated with an inlet of the water supply pump, and an outlet of the water supply pump is communicated with a second heat exchange side inlet of the subcooler and a second heat exchange side inlet of the air cooler.
According to the utility model provides a natural working medium heat pump steam and hot water combined supply generation system, the carbon dioxide heat pump system also comprises a drying filter;
and the inlet of the drying filter is communicated with the first heat exchange side outlet of the subcooler, and the outlet of the drying filter is communicated with the inlet of the first expansion valve and the working fluid inlet of the ejector.
According to the utility model provides a natural working medium heat pump steam and hot water combined supply generation system, the steam generation pipeline comprises a flash tank and a steam compressor;
an inlet and an outlet of the flash tank are respectively communicated with an outlet of a second heat exchange side of the air cooler and an inlet of the water vapor compressor;
and the outlet of the water vapor compressor is used for being communicated with a steam supply pipeline.
According to the utility model, the steam and hot water combined supply generation system of the natural working medium heat pump is provided, the steam generation pipeline also comprises a water replenishing pump;
and the inlet and the outlet of the water replenishing pump are respectively communicated with the water outlet of the flash tank and the water replenishing port of the water vapor compressor, and the outlet of the water replenishing pump is also used for being communicated with a hot water supply pipeline.
The utility model provides a natural working medium heat pump steam and hot water combined supply generating system, selects carbon dioxide and water as circulating working medium, can satisfy the demand of high heat supply temperature, can not produce the influence to the environment again; and the carbon dioxide heat pump system comprises two throttling modes, namely an expansion valve throttling mode and an ejector throttling mode, so that the system is ensured to operate under the optimal high-side pressure.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a steam and hot water combined supply generating system of a natural working medium heat pump provided by the present invention;
fig. 2 is a schematic structural diagram of an ejector throttling circuit in the natural working medium heat pump steam and hot water combined supply generating system provided by the utility model;
fig. 3 is a schematic structural diagram of an expansion valve throttling circuit in the natural working medium heat pump steam and hot water combined supply generating system provided by the utility model;
reference numerals:
1: a carbon dioxide compressor; 2: an oil separator; 3: an air cooler;
4: a heat regenerator; 5: a subcooler; 6: drying the filter;
7: an evaporator; 8: a fan; 9: a gas-liquid separator;
10: a water storage tank; 11: a flash tank; 12: a water vapor compressor;
131: a feed pump; 132: a water replenishing pump; 14: an ejector;
Ev1: a first expansion valve; ev (event)2: a second expansion valve; SV: a safety valve.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model discloses a natural working medium heat pump steam and hot water cogeneration generating system is described below with reference to fig. 1 to 3, and this natural working medium heat pump steam and hot water cogeneration generating system includes carbon dioxide heat pump system and steam generation system.
As shown in fig. 1 to 3, the carbon dioxide heat pump system includes a carbon dioxide compressor 1, an air cooler 3, an evaporator 7, a gas-liquid separator 9, and a first expansion valve Ev1And an ejector 14; the inlet and the outlet of the carbon dioxide compressor 1 are respectively connected with the air outlet of the gas-liquid separator 9 and the inlet of the first heat exchange side of the air cooler 3; the outlet of the first heat exchange side of the air cooler 3 is communicated with a first expansion valve Ev1And the working fluid inlet of the ejector 14; the mixed fluid outlet of the ejector 14 is connected with the inlet of the gas-liquid separator 9; the first heat exchange side inlet of the evaporator 7 is communicated with the first heat exchange side inletExpansion valve Ev1And the outlet of the evaporator 7 is communicated with the outlet of the gas-liquid separator 9, and the outlet of the first heat exchange side of the evaporator 7 is communicated with the injection fluid inlet of the ejector 14 and the inlet of the gas-liquid separator 9. The existing fossil energy burning heat production technology has high energy consumption and great pollution, and the heat pump technology can save 40 percent of primary energy and CO2、SO2、NO2The discharge amount can be respectively reduced by 68%, 92% and 73%. And, the first expansion valve Ev1And the ejector 14 are electrically connected to a solenoid valve (not shown in the drawings) to control the first expansion valve Ev through the solenoid valve1And the switch of the ejector 14. The carbon dioxide heat pump system comprises two throttling modes, namely an expansion valve throttling mode and an ejector throttling mode, so that the system is ensured to operate under the optimal high-side pressure. The throttling loss of the carbon dioxide heat pump is too large, and the system COP (coefficient of performance) can be improved by about 10% by adopting the throttling of the ejector.
As shown in fig. 1 to 3, the water vapor generation system includes a water supply line and a water vapor generation line, the water supply line is communicated with the second heat exchange side inlet of the air cooler 3, and the water vapor generation line is communicated with the second heat exchange side outlet of the air cooler 3. Specifically, in the present embodiment, the water vapor generation line includes a flash tank 11 and a water vapor compressor 12; an inlet and an outlet of the flash tank 11 are respectively communicated with an outlet of the second heat exchange side of the air cooler 3 and an inlet of the water vapor compressor 12; the outlet of the water vapor compressor 12 is used for communicating with a steam supply line. Carbon dioxide and water are selected as the circulating working medium, so that the requirement of high heat supply temperature can be met, and the influence on the environment can be avoided.
The steam and hot water combined supply generation system of the natural working medium heat pump can effectively improve the heat energy utilization rate of the system and cannot influence the environment; the system can heat low-temperature water below 40 ℃ to 70-100 ℃, and then heats the water to 20-60 ℃ through the coupling steam compressor 12 on the basis; the system can simultaneously meet the application scenes of steam demand and hot water demand; the COP of the carbon dioxide system can reach more than 3, and the COP of the high-temperature steam end can reach more than 3.5; both the carbon dioxide compressor 1 and the water vapor compressor 12 can operate between 0-70 Hz.
Further, in this embodiment, the steam generation pipeline further includes a water replenishing pump 132; the inlet and the outlet of the water replenishing pump 132 are respectively communicated with the water outlet of the flash tank 11 and the water replenishing port of the water vapor compressor 12, and the outlet of the water replenishing pump 132 is also used for being communicated with a hot water supply pipeline. The water below the flash tank 11 can be supplied to the user through the hot water supply pipeline through the water replenishing pump 132 on the one hand, and on the other hand, the water is used as a water replenishing source of the water vapor compressor 12, the superheat degree of the water vapor compressor 12 is eliminated, and the effects of sealing and lubricating can also be achieved.
The utility model provides a natural working medium heat pump steam and hot water combined supply generating system, selects carbon dioxide and water as circulating working medium, can satisfy the demand of high heat supply temperature, can not produce the influence to the environment again; and the carbon dioxide heat pump system comprises two throttling modes, namely an expansion valve throttling mode and an ejector throttling mode, so that the system is ensured to operate under the optimal high-side pressure.
As shown in fig. 1 and 2, in the present embodiment, the first heat exchange side inlet of the evaporator 7 and the liquid outlet of the gas-liquid separator 9 pass through the second expansion valve Ev2Communicating; second expansion valve Ev2Respectively connected to the liquid outlet of the gas-liquid separator 9 and the inlet of the first heat exchange side of the evaporator 7. In the throttle mode of the ejector throttle, the liquid in the gas-liquid separator 9 is throttled by the second expansion valve Ev2Throttling, reducing pressure into low-pressure liquid, and entering the evaporator 7 to evaporate and absorb heat.
As shown in fig. 1 to 3, in the present embodiment, the outlet of the carbon dioxide compressor 1 communicates with the first heat exchange side inlet of the air cooler 3 through the relief valve SV and the oil separator 2; the inlet and the outlet of the safety valve SV are respectively communicated with the outlet of the carbon dioxide compressor 1 and the inlet of the oil separator 2; the outlet of the oil separator 2 is communicated with the first heat exchange side inlet of the air cooler 3.
As shown in fig. 1 to 3, in the present embodiment, the carbon dioxide heat pump system further includes a regenerator 4; a first heat exchange side inlet of the heat regenerator 4 is communicated with a first heat exchange side outlet of the air cooler 3, and a first heat exchange side outlet of the heat regenerator 4 is communicated with a first expansion valve Ev1And the working fluid inlet of the ejector 14; the inlet and the outlet of the second heat exchange side of the heat regenerator 4 are respectively communicated with a gas-liquid separatorThe outlet of the separator 9 and the inlet of the carbon dioxide compressor 1. Therefore, the heat energy utilization rate of the steam and hot water combined supply generation system of the natural working medium heat pump can be effectively improved.
Further, as shown in fig. 1 to 3, in the present embodiment, the carbon dioxide heat pump system further includes a subcooler 5 (the subcooler 5 may be a plate-type subcooler or the like); the first heat exchange side inlet of the subcooler 5 is communicated with the first heat exchange side outlet of the heat regenerator 4, and the first heat exchange side outlet of the subcooler 5 is communicated with the first expansion valve Ev1And the working fluid inlet of the ejector 14; the water supply pipeline comprises a water storage tank 10 and a water feeding pump 131, the water outlet of the water storage tank 10 is communicated with the inlet of the water feeding pump 131, and the outlet of the water feeding pump 131 is communicated with the second heat exchange side inlet of the subcooler 5 and the second heat exchange side inlet of the air cooler 3. High-temperature hot water generated by heat exchange of the air cooler 3 enters the flash tank 11 through the second heat exchange side, low-temperature hot water generated by heat exchange of the subcooler 5 flows back to the water storage tank 10 through the second heat exchange side, namely, an outlet at the second heat exchange side of the subcooler 5 is communicated with a water inlet of the water storage tank 10. The carbon dioxide heat pump system comprises two throttling modes, namely an expansion valve throttling mode and an ejector throttling mode, wherein the two throttling modes are judged according to the outlet temperature of the subcooler 5 and are controlled through an electromagnetic valve.
Further, as shown in fig. 1 to 3, in the present embodiment, the carbon dioxide heat pump system further includes a dry filter 6; the inlet of the dry filter 6 is communicated with the outlet of the first heat exchange side of the subcooler 5, and the outlet of the dry filter 6 is communicated with the first expansion valve Ev1And the working fluid inlet of the ejector 14.
The temperature rise of a steam and hot water combined supply generating system of a natural working medium heat pump can reach 30-70 ℃, and COP can reach more than 3; the water vapor generation system increases the temperature of the original hot water by 20-60 ℃ and the COP of the vapor section is more than 3.5; and the throttling mode of the system is judged by regulating and controlling the supercooling degree, so that the system can be ensured to operate under the optimal high-pressure side pressure.
The utility model also provides an as above natural working medium heat pump steam hot water allies oneself with the operation method who supplies generating system, this operation method includes following step.
Step S10: the carbon dioxide compressor 1 is started, the carbon dioxide steam with low temperature and low pressure is compressed and enthalpy-increased to a supercritical state, then enters the air cooler 3 through the oil separator 2, and then enters the subcooler 5. The first heat exchange side of the air cooler 3 and the first heat exchange side of the subcooler 5 exchange heat of the supercritical carbon dioxide to cold water of 20-40 ℃ provided by the water pump 131. High-temperature hot water generated by heat exchange of the air cooler 3 enters the flash tank 11 through the second heat exchange side, and low-temperature hot water generated by heat exchange of the subcooler 5 flows back to the water storage tank 10 through the second heat exchange side. The carbon dioxide compressor 1 can operate at a variable frequency of 0-70 Hz.
Step S20: judging the temperature of the supercritical carbon dioxide passing through the first heat exchange outlet of the subcooler 5, if the temperature is less than a temperature threshold (for example, the temperature threshold is 10 ℃), opening the expansion valve for throttling, and executing step S30; otherwise, the injector throttle is opened, i.e., step S40 is executed.
Step S30: opening the throttle loop of the expansion valve, closing the throttle loop of the ejector (switching is completed by an electromagnetic valve, not shown in the figure), and allowing the supercritical carbon dioxide cooled by the cooler 5 to enter the first expansion valve Ev1The medium throttle is depressurized into a low-pressure liquid state and then enters the evaporator 7. The liquid carbon dioxide absorbs heat from the fan 8 in the evaporator 7, changes phase into gas, and enters the gas-liquid separator 9. The low-temperature carbon dioxide gas in the gas-liquid separator 9 is overheated by the heat regenerator 4 and then is sucked by the carbon dioxide compressor 1 to complete a cycle.
Step S40: the throttling circuit of the ejector is opened, the throttling circuit of the expansion valve is closed (the switching is completed through an electromagnetic valve, which is not shown in the figure), the supercritical carbon dioxide cooled by the cooler 5 enters the nozzle of the ejector 14, and the high-pressure supercritical carbon dioxide absorbs the low-pressure steam flowing out of the evaporator 7 at the nozzle of the ejector 14 and enters the gas-liquid separator 9 after being mixed. The liquid in the gas-liquid separator 9 is cooled by the second expansion valve Ev2Throttling, reducing pressure into low-pressure liquid, and entering the evaporator 7 to evaporate and absorb heat. The low-temperature carbon dioxide gas in the gas-liquid separator 9 is overheated by the heat regenerator 4 and then is sucked by the carbon dioxide compressor 1 to complete a cycle.
Step S50: high-temperature hot water at 70-100 ℃ generated by the second heat exchange side of the air cooler 3 enters the flash tank 11, the negative pressure generated by the operation of the steam compressor 12 can cause the high-temperature water in the flash tank 11 to boil, the steam boiled out from the upper part in the flash tank 11 is compressed by the steam compressor 12 to increase the enthalpy, and the temperature is increased by 20-60 ℃ on the basis of the fluid temperature in the flash tank 11 to become saturated steam or superheated steam for a user. The water below the flash tank 11 can be supplied to the user through the hot water supply pipeline through the water replenishing pump 132 on the one hand, and on the other hand, the water is used as a water replenishing source of the water vapor compressor 12, the superheat degree of the water vapor compressor 12 is eliminated, and the effects of sealing and lubricating can also be achieved. The water vapor compressor 12 can operate at a variable frequency of 0-70 Hz.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. A steam and hot water combined supply generation system of a natural working medium heat pump is characterized by comprising a carbon dioxide heat pump system and a water vapor generation system;
the carbon dioxide heat pump system comprises a carbon dioxide compressor, an air cooler, an evaporator, a gas-liquid separator, a first expansion valve and an ejector;
an inlet and an outlet of the carbon dioxide compressor are respectively communicated with an air outlet of the gas-liquid separator and a first heat exchange side inlet of the air cooler;
a first heat exchange side outlet of the air cooler is communicated with an inlet of the first expansion valve and a working fluid inlet of the ejector;
the mixed fluid outlet of the ejector is communicated with the inlet of the gas-liquid separator;
a first heat exchange side inlet of the evaporator is communicated with an outlet of the first expansion valve and a liquid outlet of the gas-liquid separator, and a first heat exchange side outlet of the evaporator is communicated with an injection fluid inlet of the ejector and an inlet of the gas-liquid separator;
the water vapor generation system comprises a water supply pipeline and a water vapor generation pipeline, the water supply pipeline is communicated with the second heat exchange side inlet of the air cooler, and the water vapor generation pipeline is communicated with the second heat exchange side outlet of the air cooler.
2. The natural working medium heat pump steam and hot water combined supply generation system as claimed in claim 1, wherein a first heat exchange side inlet of the evaporator is communicated with a liquid outlet of the gas-liquid separator through a second expansion valve;
and the inlet and the outlet of the second expansion valve are respectively communicated with the liquid outlet of the gas-liquid separator and the inlet of the first heat exchange side of the evaporator.
3. The natural working medium heat pump steam and hot water combined supply generation system as claimed in claim 1, wherein an outlet of the carbon dioxide compressor is communicated with a first heat exchange side inlet of the air cooler through a safety valve and an oil separator;
the inlet and the outlet of the safety valve are respectively communicated with the outlet of the carbon dioxide compressor and the inlet of the oil separator;
and the outlet of the oil separator is communicated with the first heat exchange side inlet of the air cooler.
4. The natural working medium heat pump steam and hot water combined supply generation system of claim 1, wherein the carbon dioxide heat pump system further comprises a heat regenerator;
a first heat exchange side inlet of the heat regenerator is communicated with a first heat exchange side outlet of the air cooler, and a first heat exchange side outlet of the heat regenerator is communicated with an inlet of the first expansion valve and a working fluid inlet of the ejector;
and an inlet and an outlet of the second heat exchange side of the heat regenerator are respectively communicated with the gas outlet of the gas-liquid separator and the inlet of the carbon dioxide compressor.
5. The natural working medium heat pump steam and hot water combined supply generation system of claim 4, wherein the carbon dioxide heat pump system further comprises a subcooler;
a first heat exchange side inlet of the subcooler is communicated with a first heat exchange side outlet of the heat regenerator, and a first heat exchange side outlet of the subcooler is communicated with an inlet of the first expansion valve and a working fluid inlet of the ejector;
the water supply pipeline comprises a water storage tank and a water supply pump, a water outlet of the water storage tank is communicated with an inlet of the water supply pump, and an outlet of the water supply pump is communicated with a second heat exchange side inlet of the subcooler and a second heat exchange side inlet of the air cooler.
6. The natural working medium heat pump steam and hot water combined supply generation system as claimed in claim 5, wherein the carbon dioxide heat pump system further comprises a drying filter;
and the inlet of the drying filter is communicated with the first heat exchange side outlet of the subcooler, and the outlet of the drying filter is communicated with the inlet of the first expansion valve and the working fluid inlet of the ejector.
7. The natural working medium heat pump steam and hot water combined supply generation system as claimed in any one of claims 1 to 6, wherein the steam generation pipeline comprises a flash tank and a steam compressor;
an inlet and an outlet of the flash tank are respectively communicated with an outlet of a second heat exchange side of the air cooler and an inlet of the water vapor compressor;
and the outlet of the water vapor compressor is used for being communicated with a steam supply pipeline.
8. The natural working medium heat pump steam and hot water combined supply generation system according to claim 7, wherein the steam generation pipeline further comprises a water replenishing pump;
and the inlet and the outlet of the water replenishing pump are respectively communicated with the water outlet of the flash tank and the water replenishing port of the water vapor compressor, and the outlet of the water replenishing pump is also used for being communicated with a hot water supply pipeline.
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| CN202023224235.9U CN214536901U (en) | 2020-12-28 | 2020-12-28 | Natural working medium heat pump steam and hot water combined supply generation system |
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| CN202023224235.9U CN214536901U (en) | 2020-12-28 | 2020-12-28 | Natural working medium heat pump steam and hot water combined supply generation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857802A (en) * | 2022-05-09 | 2022-08-05 | 北京工业大学 | Water and air mixing compression refrigerating system |
| CN115200220A (en) * | 2022-06-22 | 2022-10-18 | 江苏科技大学 | High-temperature industrial waste water heat recovery and steam/hot water supply system and operation method |
-
2020
- 2020-12-28 CN CN202023224235.9U patent/CN214536901U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857802A (en) * | 2022-05-09 | 2022-08-05 | 北京工业大学 | Water and air mixing compression refrigerating system |
| CN115200220A (en) * | 2022-06-22 | 2022-10-18 | 江苏科技大学 | High-temperature industrial waste water heat recovery and steam/hot water supply system and operation method |
| CN115200220B (en) * | 2022-06-22 | 2023-11-21 | 江苏科技大学 | High-temperature industrial wastewater heat recovery and steam/hot water supply system and operation method |
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