CN216521584U - Multi-heat-source thermotechnical hybrid compression steam generation system - Google Patents
Multi-heat-source thermotechnical hybrid compression steam generation system Download PDFInfo
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- CN216521584U CN216521584U CN202123298308.3U CN202123298308U CN216521584U CN 216521584 U CN216521584 U CN 216521584U CN 202123298308 U CN202123298308 U CN 202123298308U CN 216521584 U CN216521584 U CN 216521584U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a multi-heat-source thermotechnical hybrid compression steam generation system. The multi-heat-source thermal mixed compression steam generation system comprises a multi-heat-source steam generation system, a thermal compression system and a mechanical compression system. The multi-heat source steam generation system comprises a solar heat collector and a high-temperature evaporating pot. The multi-heat-source steam generation system further comprises a heat pump evaporator, a heat pump compressor, a low-temperature evaporating tank and a heat pump expansion valve. The hot compression system comprises an injection pump and a gas storage cooling water tank. The mechanical compression system includes a water vapor compressor. The multi-heat-source thermal mixed compression steam generation system realizes the conversion from solar energy and low-grade waste heat sources to high-temperature and high-pressure steam meeting the requirements of users through the combination of multi-heat-source steam generation, thermal compression and mechanical compression, and fully utilizes clean and renewable solar energy and low-grade waste heat resources. In addition, the multi-heat-source thermal mixed compression steam generation system also has the advantages of cleanness, environmental protection, low energy consumption, high efficiency and the like.
Description
Technical Field
The utility model relates to the technical field of industrial heat, in particular to a multi-heat-source thermal mixed compressed steam generation system.
Background
As an industrial device capable of providing high-temperature and high-pressure steam, a steam boiler is widely used in various process flows of industrial production and daily life. Currently, the types of steam boilers on the market mainly include fuel boilers and electric boilers. The fuel boilers generally include coal boilers and gas boilers.
However, both fuel boilers and electric boilers have their own disadvantages that are difficult to overcome. In the fuel combustion process of the fuel boiler, due to the existence of impurities in the fuel, pollutants such as nitrogen oxides and greenhouse gases such as carbon dioxide can be generated, and the environment is greatly polluted and damaged. The electric heat conversion efficiency of the electric boiler is lower than 1, namely one part of electric energy can only be converted into less than one part of heat energy. Therefore, the electric boiler has the disadvantages of huge electric energy consumption, high use cost and large load impact on the power grid.
Under the background of 'carbon peak reaching, carbon neutralization' and large energy and environment, the realization of thermal energy conservation and emission reduction in the industrial field has very important significance, so that a new technology which is efficient and environment-friendly is urgently needed to solve the problems and provide green and energy-saving industrial steam.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multi-heat-source thermal mixed compression steam generation system. The multi-heat-source steam generation system in the multi-heat-source thermal mixed compression steam generation system reduces the consumption of primary energy through the use of solar energy and low-grade waste heat, thereby assisting energy conservation and emission reduction and promoting the early realization of carbon neutralization. Meanwhile, the use of solar energy and low-grade waste heat is also beneficial to reducing the production cost and improving the production benefit. In addition, the multi-heat-source thermal mixed compression steam generation system realizes the conversion from solar energy and low-grade waste heat to high-temperature and high-pressure steam meeting the requirements of users through the combination of multi-heat-source steam generation, thermal compression and mechanical compression, and fully utilizes clean and renewable solar energy and low-grade waste heat resources.
In order to achieve the purpose, the utility model provides the following technical scheme: a multi-heat-source thermal mixed compression steam generation system. The multi-heat-source thermal mixed compression steam generation system comprises a multi-heat-source steam generation system, a thermal compression system and a mechanical compression system.
The multi-heat-source steam generation system comprises a solar heat collector and a high-temperature evaporation tank, wherein the solar heat collector and the high-temperature evaporation tank form a fluid flow loop.
The multi-heat-source steam generation system further comprises a heat pump evaporator, a heat pump compressor, a low-temperature evaporation tank and a heat pump expansion valve, wherein the heat pump evaporator is provided with a heat release pipe and a heat absorption pipe, and a low-temperature evaporation spiral pipe is arranged inside the low-temperature evaporation tank. The heat absorption pipe, the heat pump compressor, the low-temperature evaporation spiral pipe and the heat pump expansion valve on the heat pump evaporator are sequentially arranged to form a fluid circulation loop.
The hot compression system comprises an ejector pump and a gas storage cooling water tank, wherein a working fluid inlet of the ejector pump is connected with a high-temperature evaporation tank in the multi-heat-source steam generation system through a power air inlet pipe, an ejector fluid inlet of the ejector pump is connected with a low-temperature evaporation tank in the multi-heat-source steam generation system through an ejector air inlet pipe, and a mixed fluid outlet of the ejector pump is connected with the gas storage cooling water tank through an ejector air outlet pipe.
The mechanical compression system comprises a high-temperature evaporation tank, a compressor water replenishing pump, a water vapor compressor and a gas storage cooling water tank, wherein the water vapor compressor and the gas storage cooling water tank form a fluid flow passage, and the high-temperature evaporation tank, the compressor water replenishing pump and the water vapor compressor form a fluid flow passage.
Preferably, the water outlet of the solar heat collector is connected with the water inlet of the high-temperature evaporating pot through a solar water return pipe, a first pressure reduction regulating valve is arranged on the solar water return pipe, the water outlet of the high-temperature evaporating pot is connected with the water inlet of the solar heat collector through a solar water inlet pipe, and a first regulating valve and a solar circulating pump are arranged on the solar water inlet pipe.
The outlet of the heat absorption pipe on the heat pump evaporator is connected with the inlet of the heat pump compressor through a heat pump air inlet pipe, the outlet of the heat pump compressor is connected with the inlet of the low-temperature evaporation spiral pipe through a heat pump air outlet pipe, the outlet of the low-temperature evaporation spiral pipe is connected with the inlet of the heat pump expansion valve through a heat pump water return pipe, and the outlet of the heat pump expansion valve is connected with the inlet of the heat absorption pipe on the heat pump evaporator through a heat pump water inlet pipe.
The air inlet of the vapor compressor is connected with the air storage cooling water tank in the thermal compression system through the air suction pipe of the compressor, and the air outlet of the vapor compressor is connected with the exhaust pipe of the compressor.
Preferably, the inlet of the heat-releasing pipe on the heat pump evaporator is connected with the heat source water inlet pipe, and the outlet of the heat-releasing pipe on the heat pump evaporator is connected with the heat source water outlet pipe.
Preferably, the solar water inlet pipe is communicated with a water replenishing pipe, and a second regulating valve is arranged on the water replenishing pipe.
Preferably, the connecting point of the solar water inlet pipe communicated with the water replenishing pipe is positioned between the first regulating valve and the solar circulating pump.
Preferably, a high-temperature evaporation tank drain pipe is further arranged on the high-temperature evaporation tank, and a first stop valve is arranged on the high-temperature evaporation tank drain pipe. A low-temperature evaporation tank drain pipe is further arranged on the low-temperature evaporation tank, and a second stop valve is arranged on the low-temperature evaporation tank drain pipe.
Preferably, the low-temperature evaporating pot and the high-temperature evaporating pot are connected through a decompression pipe, and a second decompression adjusting valve is arranged on the decompression pipe.
Preferably, the low-temperature evaporation tank is connected with the gas storage cooling water tank through a water tank return pipe, and a third regulating valve is arranged on the water tank return pipe.
Preferably, the low-temperature evaporation tank is connected with the gas storage cooling water tank through a water tank circulating pipe, and a water tank circulating pump and a fourth regulating valve are arranged on the water tank circulating pipe.
Preferably, the high-temperature evaporation tank is connected with the water vapor compressor through a compressor water replenishing pipe, and a compressor water replenishing pump and a fifth regulating valve are arranged on the compressor water replenishing pipe.
Drawings
The present application may be better understood by describing embodiments thereof in conjunction with the following drawings, in which:
fig. 1 is a schematic structural diagram of a multi-heat-source thermal hybrid compression steam generation system in an embodiment of the present invention.
The reference numerals and names in the figures are as follows:
10. a solar heat collector; 11. a high temperature evaporator; 111. a drain pipe of the high-temperature evaporation tank; 112. a first shut-off valve; 12. a solar energy water return pipe; 13. a first pressure reducing regulating valve; 14. a solar water inlet pipe; 15. a first regulating valve; 16. a solar circulating pump; 17. a water replenishing pipe; 18. a second regulating valve; 20. a heat pump evaporator; 201. a heat releasing pipe; 202. a heat absorbing tube; 21. a heat pump compressor; 22. a low-temperature evaporating pot; 221. a low temperature evaporation spiral tube; 222. a low-temperature evaporation tank drain pipe; 223. a second stop valve; 23. a heat pump expansion valve; 24. a heat pump air inlet pipe; 25. a heat pump air outlet pipe; 26. a heat pump water return pipe; 27. a heat pump water inlet pipe; 28. a heat source water inlet pipe; 29. a heat source water outlet pipe; 30. a pressure reducing tube; 31. a second pressure reducing regulating valve; 40. an ejector pump; 41. a gas storage cooling water tank; 42. a power air inlet pipe; 43. injecting an air inlet pipe; 44. an ejector pump exhaust pipe; 45. a water return pipe of the water tank; 46. a third regulating valve; 47. a water tank circulation pipe; 48. a water tank circulation pump; 49. a fourth regulating valve; 50. a water vapor compressor; 51. a compressor discharge pipe; 52. a compressor suction duct; 53. a compressor water replenishing pump; 54. a compressor water replenishing pipe; 55. and a fifth regulating valve.
Detailed Description
Unless otherwise defined, technical or scientific terms used herein in the specification and claims should have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the application relates to a multi-heat-source thermal mixing compression steam generation system as shown in figure 1. The multi-heat-source thermal mixed compression steam generation system comprises a multi-heat-source steam generation system, a thermal compression system and a mechanical compression system.
The multi-heat-source steam generation system comprises a solar heat collector 10 and a high-temperature evaporation tank 11, wherein the solar heat collector 10 and the high-temperature evaporation tank 11 form a fluid flow loop. In some embodiments, the water outlet of the solar heat collector 10 is connected to the water inlet of the high temperature evaporation tank 11 through a solar water return pipe 12, a first pressure reducing regulating valve 13 is disposed on the solar water return pipe 12, the water outlet of the high temperature evaporation tank 11 is connected to the water inlet of the solar heat collector 10 through a solar water inlet pipe 14, and a first regulating valve 15 and a solar circulating pump 16 are disposed on the solar water inlet pipe 14.
The multi-heat-source steam generation system further comprises a heat pump evaporator 20, a heat pump compressor 21, a low-temperature evaporation tank 22 and a heat pump expansion valve 23, wherein the heat pump evaporator 20 is provided with a heat release pipe 201 and a heat absorption pipe 202, and the low-temperature evaporation spiral pipe 221 is arranged inside the low-temperature evaporation tank 22. The heat absorption pipe 201, the heat pump compressor 21, the low-temperature evaporation spiral pipe 221, and the heat pump expansion valve 23 of the heat pump evaporator 20 are sequentially disposed to form a fluid circulation circuit. In some embodiments, the outlet of the heat absorption pipe 202 on the heat pump evaporator 20 is connected to the inlet of the heat pump compressor 21 through a heat pump intake pipe 24, the outlet of the heat pump compressor 21 is connected to the inlet of the low-temperature evaporation spiral pipe 221 through a heat pump outlet pipe 25, the outlet of the low-temperature evaporation spiral pipe 221 is connected to the inlet of the heat pump expansion valve 23 through a heat pump return pipe 26, and the outlet of the heat pump expansion valve 23 is connected to the inlet of the heat absorption pipe 202 on the heat pump evaporator 20 through a heat pump inlet pipe 27.
The hot compression system comprises an ejector pump 40 and a gas storage cooling water tank 41, wherein a working fluid inlet of the ejector pump 40 is connected with the high-temperature evaporation tank 11 in the multi-heat-source steam generation system through a power air inlet pipe 42, an ejector fluid inlet of the ejector pump 40 is connected with the low-temperature evaporation tank 22 in the multi-heat-source steam generation system through an ejector air inlet pipe 43, and a mixed fluid outlet of the ejector pump 40 is connected with the gas storage cooling water tank 41 through an ejector air outlet pipe 44.
The mechanical compression system comprises a water vapor compressor 50, wherein the water vapor compressor 50 and the gas storage cooling water tank 41 form a fluid flow passage. In some embodiments, the air inlet of the water vapor compressor 50 is connected to the air storage cooling water tank 41 in the thermal compression system through the compressor suction pipe 52, and the air outlet of the water vapor compressor 50 is connected to the compressor discharge pipe 51.
In some embodiments, the inlet of the heat-discharging pipe 201 on the heat pump evaporator 20 is connected to the heat source water inlet pipe 28, and the outlet of the heat-discharging pipe 201 on the heat pump evaporator 20 is connected to the heat source water outlet pipe 29.
In some embodiments, the solar water inlet pipe 14 is communicated with a water replenishing pipe 17, and a second adjusting valve 18 is arranged on the water replenishing pipe 17. In some embodiments, the connection point where the solar inlet pipe 14 communicates with the make-up pipe 17 is located between the first regulating valve 15 and the solar circulation pump 16. In the embodiment shown in fig. 1, make-up water may flow into the solar inlet pipe 14 through the make-up water pipe 17 and participate in the circulation. The make-up water may be used to make up for the water working fluid lost to the high temperature evaporator tank 11 due to evaporation by heating.
In some embodiments, the high temperature evaporation tank 11 is further provided with a high temperature evaporation tank drain pipe 111, and the high temperature evaporation tank drain pipe 111 is provided with a first stop valve 112. The waste water working medium and the excessive water working medium in the high temperature evaporation tank 11 can be discharged through the high temperature evaporation tank drain pipe 111, and the first stop valve 112 can be used for controlling the discharge of the water working medium in the high temperature evaporation tank 11.
In some embodiments, a low temperature evaporator drain 222 is further disposed on the low temperature evaporator 22, and a second stop valve 223 is disposed on the low temperature evaporator drain 222. Waste water working medium and excessive water working medium in the low-temperature evaporation tank 22 can be discharged through a low-temperature evaporation tank water discharge pipe 222, and a second stop valve 223 can be used for controlling the discharge of the water working medium in the low-temperature evaporation tank 22.
In some embodiments, the low temperature evaporator 22 and the high temperature evaporator 11 are connected by a pressure reducing pipe 30, and the pressure reducing pipe 30 is provided with a second pressure reducing regulating valve 31. In the embodiment shown in the figure, the high temperature evaporation tank 11 may contain a high temperature and high pressure water working medium, and the high temperature and high pressure water working medium may flow through the second pressure reducing and regulating valve 31 through the pressure reducing pipe 30, and flow into the low temperature evaporation tank 22 after being cooled and depressurized. The high-temperature and high-pressure working medium is decompressed and then is flashed into low-temperature and low-pressure water vapor and low-temperature and low-pressure saturated water, so that on one hand, the low-temperature and high-pressure water vapor can be used for supplementing the water working medium lost by heating and evaporation in the low-temperature evaporation tank 22, and on the other hand, part of the low-temperature and low-pressure water vapor can be generated.
In some embodiments, the low temperature evaporation tank 22 and the air storage cooling water tank 41 are connected through a water tank return pipe 45, and a third regulating valve 46 is disposed on the water tank return pipe 45. The gas storage and temperature reduction water tank 41 may contain a medium-temperature liquid water working medium, and the medium-temperature liquid water working medium may flow through the water tank return pipe 45 and the third regulating valve 46 to flow into the low-temperature evaporation tank 22, and may make up for the consumption of the water working medium in the low-temperature evaporation tank 22 due to evaporation.
In some embodiments, the low temperature evaporation tank 22 is connected to the stored gas cooling water tank 41 through a tank circulation pipe 47, and a tank circulation pump 48 and a fourth adjustment valve 49 are disposed on the tank circulation pipe 47. The low-temperature evaporator 22 may include a low-temperature water working medium, and the low-temperature water working medium may be delivered into the gas storage cooling water tank 41 through the tank circulation pipe 47 via the fourth regulating valve 49 by the tank circulation pump 48. Further, the loss of water in the air storage and cooling water tank 41 caused by evaporation can be compensated.
In some embodiments, the high temperature evaporation tank 11 is connected to the water vapor compressor 50 through a compressor water replenishing pipe 54, and a compressor water replenishing pump 53 and a fifth regulating valve 55 are disposed on the compressor water replenishing pipe 54. In the embodiment shown in fig. 1, during the operation of the water vapor compressor 50, the water medium from the high temperature evaporation tank 11 can be fed into the compression chamber of the water vapor compressor 50 by the compressor make-up water pump 53 through the compressor make-up water pipe 54 via the fifth regulating valve 55. Furthermore, the final exhaust temperature can be reduced, and the safe and stable operation of the unit is ensured.
The operation of the multi-heat-source thermal hybrid compression steam generation system according to this embodiment will be briefly described with reference to fig. 1.
When the multi-heat-source steam generating system starts to work, the water medium in the high-temperature evaporating tank 11 is fed into the solar heat collector 10 through the solar water inlet pipe 14, the first adjusting valve 15 and the solar circulating pump 16. The solar heat collector 10 heats the water working medium by using solar energy, so that the water working medium absorbs heat and becomes a high-temperature water working medium. The high-temperature water working medium flows out of a water outlet of the solar heat collector 10 and flows through a first pressure reduction regulating valve 13 through a solar water return pipe 12 to be conveyed into a high-temperature evaporation tank 11. The high-temperature water medium is flashed by the temperature and pressure decrease when passing through the first pressure-reducing regulator 13, and high-temperature high-pressure steam is generated in the high-temperature evaporator 11.
The low-grade heat source working medium flows into the heat release pipe 201 of the heat pump evaporator 20 through the heat source water inlet pipe 28, and releases heat in the heat pump evaporator 20, so that the heat pump circulating working medium in the heat absorption pipe 202 of the heat pump evaporator 20 is heated and evaporated into low-temperature and low-pressure steam. The low-grade heat source working medium after heat release flows out of the system through the heat source water outlet pipe 29.
The low-temperature and low-pressure vapor generated after being heated in the heat pump evaporator 20 is sucked by the heat pump compressor 21 through the heat pump intake pipe 24 and compressed into high-temperature and high-pressure vapor. Subsequently, the high-temperature and high-pressure steam flows into the low-temperature evaporation spiral pipe 221 in the low-temperature evaporation tank 22 through the heat pump air outlet pipe 25, and is condensed and released in the low-temperature evaporation spiral pipe 221, so that the low-temperature water medium in the low-temperature evaporation tank 22 is heated, and the low-temperature water medium is evaporated to form low-temperature and low-pressure steam. The condensed heat pump cycle fluid flows into the heat pump expansion valve 23 through the heat pump return pipe 26, expands in the heat pump expansion valve 23, and is cooled and depressurized. Subsequently, the heat pump cycle fluid flows into the heat pump evaporator 20 through the heat pump inlet pipe 27, forming a low temperature heat pump cycle. In the circulation, the heat of the low-grade waste heat can be extracted and used for heating the water working medium in the low-temperature evaporation tank 22 to generate steam, so that the utilization of the low-grade heat source is realized. The temperature and the pressure of the water vapor generated by heat exchange after the temperature of the heat pump compressor 21 is raised are both raised, so that the overall pressure in the system can be further raised, and the final suction pressure of the compressor can be also improved.
In this embodiment, the high-temperature evaporator 11 and the low-temperature evaporator 22 not only have the function of generating water vapor but also are storage bodies of water working medium and water vapor.
Then, the thermal compression system operates. The high-temperature and high-pressure steam in the high-temperature evaporation tank 11 flows into the ejector pump 40 through the power inlet pipe 42, and ejects the steam with low temperature and pressure generated in the low-temperature evaporation tank 22. The water vapor with lower temperature and pressure in the low temperature evaporation tank 22 flows into the ejector pump 40 through the ejector air inlet pipe 43 and is thermally compressed by the high temperature and high pressure water vapor in the high temperature evaporation tank 11. After compression, the two are mixed to form intermediate pressure steam with possibly some degree of superheat. The intermediate pressure steam flows into the gas storage cooling water tank 41 through the ejector pump exhaust pipe 44 below the liquid level. The gas storage and temperature reduction water tank 41 contains a medium-temperature liquid water working medium, and the medium-temperature liquid water working medium absorbs the superheat of the intermediate-pressure water vapor and evaporates to increase the generated steam quantity, and realizes the reduction of the superheat degree of the intermediate-pressure water vapor. In this embodiment, the gas storage cooling water tank 41 not only has the function of generating steam, but also is a storage body for water working medium and steam.
Subsequently, the mechanical compression system operates. The intermediate-pressure water vapor in the air storage cooling water tank 41 is sucked and compressed by the water vapor compressor 50 through the compressor suction pipe 52. Thus, the water vapor with higher temperature and pressure is generated and supplied to the user through the compressor discharge pipe 51.
The solar heat collector 10 and the high-temperature evaporation tank 11 in the multi-heat source steam generation system in the multi-heat source thermal mixed compression steam generation system realize the generation of high-temperature high-pressure steam by utilizing green renewable energy, namely solar energy. Meanwhile, the low-temperature evaporation tank 22 in the multi-heat source steam generation system realizes the purpose of utilizing the energy which is often ignored and wasted, namely low-grade waste heat, to generate water vapor with lower temperature and pressure. The low-grade heat source can be an air source, residual heat water, a geothermal source, a water source and the like. The use of solar energy and low-grade waste heat is beneficial to reducing the consumption of primary energy, thereby helping energy conservation and emission reduction and promoting the early realization of carbon neutralization. Meanwhile, the use of solar energy and low-grade waste heat is also beneficial to reducing the production cost and improving the production benefit.
The hot compression system in the multi-heat-source thermal mixing compression steam generation system thermally compresses the steam with lower temperature and pressure generated by low-grade waste heat by using the high-temperature and high-pressure steam generated by solar energy by using the ejector pump 40 to generate the medium-pressure steam. Further, the pressure of the water vapor at a lower temperature and pressure is increased, which is advantageous for increasing the suction pressure of the water vapor compressor 50. Therefore, the high-efficiency recycling of the low-grade waste heat is realized, the energy efficiency of the whole system is further improved, and the power consumption of the system is reduced.
The mechanical compression system in the multi-heat-source thermal mixed compression steam generation system further compresses, boosts and heats medium-pressure steam by mechanical compression through the steam compressor 50 to generate steam with higher temperature and pressure, so as to meet the use requirements of users. The mechanical compression has high efficiency and strong stability, and can effectively improve the steam pressure and the temperature to ensure the efficient and stable operation of the system.
The multi-heat-source thermal mixed compression steam generation system realizes the high-temperature and high-pressure steam from solar energy and low-grade waste heat to meet the requirements of users through the combination of multi-heat-source steam generation, thermal compression and mechanical compression, and fully utilizes clean and renewable solar energy and low-grade waste heat resources. Compared with the existing coal-fired and gas-fired boilers, the system only consumes part of electric energy to provide steam, and is cleaner and more environment-friendly. Compared with an electric boiler, the system utilizes solar energy to efficiently recover low-grade waste heat to generate steam, and power consumption and energy consumption are greatly reduced.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A multi-heat-source thermal mixed compression steam generation system is characterized by comprising a multi-heat-source steam generation system, a thermal compression system and a mechanical compression system,
the multi-heat-source steam generation system comprises a solar heat collector and a high-temperature evaporation tank, wherein the solar heat collector and the high-temperature evaporation tank form a fluid flow loop;
the multi-heat-source steam generation system further comprises a heat pump evaporator, a heat pump compressor, a low-temperature evaporation tank and a heat pump expansion valve, wherein the heat pump evaporator is provided with a heat release pipe and a heat absorption pipe, and a low-temperature evaporation spiral pipe is arranged inside the low-temperature evaporation tank; the heat absorption pipe, the heat pump compressor, the low-temperature evaporation spiral pipe and the heat pump expansion valve on the heat pump evaporator are sequentially arranged to form a fluid circulation loop;
the hot compression system comprises an ejector pump and a gas storage cooling water tank, a working fluid inlet of the ejector pump is connected with the high-temperature evaporation tank in the multi-heat-source steam generation system through a power air inlet pipe, an ejector fluid inlet of the ejector pump is connected with the low-temperature evaporation tank in the multi-heat-source steam generation system through an ejector air inlet pipe, and a mixed fluid outlet of the ejector pump is connected with the gas storage cooling water tank through an ejector pump exhaust pipe;
the mechanical compression system comprises a high-temperature evaporation tank, a compressor water replenishing pump, a water vapor compressor and a gas storage cooling water tank, wherein the water vapor compressor and the gas storage cooling water tank form a fluid flow passage, and the high-temperature evaporation tank, the compressor water replenishing pump and the water vapor compressor form a fluid flow passage.
2. The multi-heat-source thermal mixing compression steam generation system according to claim 1, wherein a water outlet of the solar heat collector is connected with a water inlet of the high-temperature evaporation tank through a solar water return pipe, a first pressure reduction regulating valve is arranged on the solar water return pipe, a water outlet of the high-temperature evaporation tank is connected with a water inlet of the solar heat collector through a solar water inlet pipe, and a first regulating valve and a solar circulating pump are arranged on the solar water inlet pipe;
an outlet of a heat absorption pipe on the heat pump evaporator is connected with an inlet of the heat pump compressor through a heat pump air inlet pipe, an outlet of the heat pump compressor is connected with an inlet of the low-temperature evaporation spiral pipe through a heat pump air outlet pipe, an outlet of the low-temperature evaporation spiral pipe is connected with an inlet of the heat pump expansion valve through a heat pump water return pipe, and an outlet of the heat pump expansion valve is connected with an inlet of the heat absorption pipe on the heat pump evaporator through a heat pump water inlet pipe;
the air inlet of the steam compressor is connected with the air storage cooling water tank in the thermal compression system through a compressor air suction pipe, and the air outlet of the steam compressor is connected with a compressor exhaust pipe.
3. The multi-heat-source thermotechnical hybrid compression steam generation system according to claim 1, wherein an inlet of a heat release pipe on the heat pump evaporator is connected with a heat source water inlet pipe, and an outlet of the heat release pipe on the heat pump evaporator is connected with a heat source water outlet pipe.
4. The multi-heat-source thermal mixed compression steam generation system as claimed in claim 2, wherein the solar water inlet pipe is communicated with a water replenishing pipe, and a second regulating valve is arranged on the water replenishing pipe.
5. The multi-heat-source thermal hybrid compressed steam generation system according to claim 2, wherein a connection point at which the solar water inlet pipe is communicated with the water replenishing pipe is located between the first regulating valve and the solar circulating pump.
6. The multi-heat-source thermal mixed compression steam generation system according to claim 1, wherein a high-temperature evaporation tank drain pipe is further arranged on the high-temperature evaporation tank, and a first stop valve is arranged on the high-temperature evaporation tank drain pipe; the low-temperature evaporation tank is further provided with a low-temperature evaporation tank drain pipe, and a second stop valve is arranged on the low-temperature evaporation tank drain pipe.
7. The multi-heat-source thermal hybrid compression steam generation system according to claim 1, wherein the low-temperature evaporator and the high-temperature evaporator are connected through a pressure reducing pipe, and a second pressure reducing regulating valve is arranged on the pressure reducing pipe.
8. The multi-heat-source thermal mixed compression steam generation system according to claim 1, wherein the low-temperature evaporation tank and the gas storage cooling water tank are connected through a water tank return pipe, and a third regulating valve is arranged on the water tank return pipe.
9. The multi-heat-source thermal mixing compression steam generation system according to claim 1, wherein the low-temperature evaporation tank and the gas storage and cooling water tank are connected through a water tank circulation pipe, and a water tank circulation pump and a fourth regulating valve are arranged on the water tank circulation pipe.
10. The multi-heat-source thermal mixed compression steam generation system according to claim 1, wherein the high-temperature evaporation tank is connected with the steam compressor through a compressor water replenishing pipe, and a compressor water replenishing pump and a fifth regulating valve are arranged on the compressor water replenishing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202123298308.3U CN216521584U (en) | 2021-12-24 | 2021-12-24 | Multi-heat-source thermotechnical hybrid compression steam generation system |
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| CN202123298308.3U CN216521584U (en) | 2021-12-24 | 2021-12-24 | Multi-heat-source thermotechnical hybrid compression steam generation system |
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| CN115127139A (en) * | 2022-06-29 | 2022-09-30 | 上海交通大学 | Cold supply, steam supply and heat supply triple supply system and working method thereof |
| CN115127139B (en) * | 2022-06-29 | 2024-04-16 | 上海交通大学 | Cooling, steam supplying and heat supplying triple supply system and working method thereof |
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