CN113280529B - Heat pump circulation system of jet compression type deep condensation exhaust steam - Google Patents
Heat pump circulation system of jet compression type deep condensation exhaust steam Download PDFInfo
- Publication number
- CN113280529B CN113280529B CN202110573060.2A CN202110573060A CN113280529B CN 113280529 B CN113280529 B CN 113280529B CN 202110573060 A CN202110573060 A CN 202110573060A CN 113280529 B CN113280529 B CN 113280529B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- refrigerant
- refrigerant pipeline
- heat pump
- inlet end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a heat pump circulating system for jet compression type deep condensation exhaust steam, and relates to the technical field of heat pump systems. The problems that the heat pump of the existing heat pump circulating system is low in evaporation temperature, low in coefficient of performance and efficiency of the heat pump, poor in energy-saving performance of the system, and high in energy consumption and running cost are solved. The heat pump system comprises a first compressor, a heat pump condenser, a first throttle expansion valve, a heat pump first evaporator, a second throttle expansion valve, a heat pump second evaporator, an ejector, a first heat-carrying medium pipeline, a second heat-carrying medium pipeline, a first refrigerant pipeline, a second refrigerant pipeline, a third refrigerant pipeline, a fourth refrigerant pipeline, a fifth refrigerant pipeline, a sixth refrigerant pipeline, a seventh refrigerant pipeline, an eighth refrigerant pipeline, a ninth refrigerant pipeline, a first steam exhaust pipeline, a second steam exhaust pipeline and a third steam exhaust pipeline. The invention improves the coefficient of performance of the heat pump by 15-20% through the cascade evaporation and the cascade compression, and effectively saves energy consumption and operation cost by utilizing the ejector to replace the compressor.
Description
Technical Field
The invention relates to the technical field of heat pump circulating systems, in particular to a heat pump circulating system of jet compression type deep condensation exhaust steam.
Background
Due to the rising energy price, the domestic coal price is greatly increased, and the energy conservation and the reduction of the enterprise cost become urgent tasks of each enterprise. And a large amount of low-pressure steam and flash steam (dead steam) are generated and discharged outwards by a deaerator and a boiler fixed-discharge flash tank and a drainage flash tank which are arranged in a steam-water system in the operation of a large amount of industrial state and power station boilers of enterprises. In addition, in the process of using the steam, a large amount of low-pressure steam is generated due to the process, so that great energy loss and waste are caused, the recovery economic value is great, and if the waste steam with the recovery value is reasonably recycled, the economic value is obvious.
In the evaporation production, the yield of secondary steam is large and the secondary steam contains a large amount of latent heat, and a multi-effect evaporator is adopted for saving the consumption of heating steam. Theoretically, 1kg of heated steam can evaporate approximately 1kg of water. However, since there is a heat loss and the latent heat of vaporization of water in the separation chamber is larger than the latent heat of condensation in the heating chamber, the heating vapor required to evaporate 1kg of water actually exceeds 1 kg. As the efficiency increases, the increase rate of the steam economy (U ═ W/D) gradually decreases, the loss of the temperature difference of heat transfer increases, the production intensity of the evaporator greatly decreases, and the equipment cost increases in multiples. When the exhaust steam heat recovery is processed, a steam compression type heat pump technology which takes Freon as a refrigerant is generally adopted, the higher the evaporation temperature is, the higher the performance coefficient and the efficiency of the heat pump are, in the recovery process, the latent heat of condensation can ensure that the heat pump operates at the higher evaporation temperature, and the sensible heat of temperature drop can cause the temperature of the exhaust steam condensate water to be continuously reduced, so that the vacuum degree of the system can be ensured, but the performance of the system can be deteriorated.
The invention discloses a double-stage compression heat pump circulating system for deeply condensing exhaust steam, which is disclosed as CN209230074U and is used for deeply recovering the exhaust steam of a roller conveyor line and realizing step evaporation and step compression by arranging a double-stage compression heat pump, so that the performance coefficient of the heat pump is improved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows:
the heat pump circulation system aims to solve the problems that the existing heat pump circulation system is low in heat pump evaporation temperature, low in heat pump performance coefficient and efficiency, poor in system energy conservation, and high in energy consumption and operation cost.
The invention adopts the technical scheme for solving the technical problems that:
the first scheme is as follows: the invention provides a heat pump circulating system of jet compression type deep condensation exhaust steam, which is characterized in that: comprises a first compressor, a heat pump condenser, a first throttle expansion valve, a heat pump first evaporator, a second throttle expansion valve, a heat pump second evaporator, an ejector, a first heat-carrying medium pipeline, a second heat-carrying medium pipeline, a first refrigerant pipeline, a second refrigerant pipeline, a third refrigerant pipeline, a fourth refrigerant pipeline, a fifth refrigerant pipeline, a sixth refrigerant pipeline, a seventh refrigerant pipeline, an eighth refrigerant pipeline, a ninth refrigerant pipeline, a first dead steam pipeline, a second dead steam pipeline and a third dead steam pipeline,
the outlet end of the first heat-carrying medium pipeline is connected with the heat medium inlet end of the heat pump condenser, and the heat medium outlet end of the heat pump condenser is connected with the inlet end of the second heat-carrying medium pipeline;
the inlet end of the first refrigerant pipeline is connected with the refrigerant outlet end of the heat pump condenser, the outlet end of the first refrigerant pipeline is respectively connected with the inlet end of the second refrigerant pipeline and the inlet end of the third refrigerant pipeline, the second refrigerant pipeline is provided with a first throttle expansion valve, the outlet end of the second refrigerant pipeline is connected with the refrigerant inlet end of the first evaporator of the heat pump, the refrigerant outlet end of the first evaporator of the heat pump is connected with the inlet end of the fourth refrigerant pipeline, the third refrigerant pipeline is provided with a second throttle expansion valve, the outlet end of the third refrigerant pipeline is connected with the refrigerant inlet end of the second evaporator of the heat pump, the refrigerant outlet end of the second evaporator of the heat pump is connected with the inlet end of the fifth refrigerant pipeline, the fifth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, and the refrigerant outlet end of the ejector is connected with the inlet end of the sixth refrigerant pipeline, the outlet end of the sixth refrigerant pipeline is converged with the outlet end of the fourth refrigerant pipeline and is connected with the inlet end of the seventh refrigerant pipeline, the seventh refrigerant pipeline is connected with the inlet end of the first compressor along the medium flowing direction, the outlet end of the first compressor is respectively connected with the inlet end of the eighth refrigerant pipeline and the inlet end of the ninth refrigerant pipeline, the outlet end of the ninth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, and the outlet end of the eighth refrigerant pipeline is connected with the refrigerant inlet end of the heat pump condenser;
the outlet end of the first exhaust steam pipeline is connected with the heat-releasing inlet end of the first heat pump evaporator, the heat-releasing outlet end of the first heat pump evaporator is connected with the inlet end of the second exhaust steam pipeline, the outlet end of the second exhaust steam pipeline is connected with the heat-releasing inlet end of the second heat pump evaporator, and the heat-releasing outlet end of the second heat pump evaporator is connected with the inlet end of the third exhaust steam pipeline.
Scheme II: a jet compression type deep condensation exhaust steam heat pump circulating system is characterized by comprising a first compressor, a heat pump condenser, a first throttle expansion valve, a heat pump first evaporator, a second throttle expansion valve, a heat pump second evaporator, an ejector, a first heat-carrying medium pipeline, a second heat-carrying medium pipeline, a first refrigerant pipeline, a second refrigerant pipeline, a third refrigerant pipeline, a fourth refrigerant pipeline, a fifth refrigerant pipeline, a sixth refrigerant pipeline, a seventh refrigerant pipeline, an eighth refrigerant pipeline, a ninth refrigerant pipeline, a first exhaust steam pipeline, a second exhaust steam pipeline and a third exhaust steam pipeline,
the outlet end of the first heat-carrying medium pipeline is connected with the heat medium inlet end of the heat pump condenser, and the heat medium outlet end of the heat pump condenser is connected with the inlet end of the second heat-carrying medium pipeline;
the inlet end of a first refrigerant pipeline is connected with the refrigerant outlet end of the heat pump condenser, a first throttle expansion valve is arranged on the first refrigerant pipeline, the outlet end of the first refrigerant pipeline is respectively connected with the inlet end of a second refrigerant pipeline and the inlet end of a third refrigerant pipeline, the outlet end of the second refrigerant pipeline is connected with the refrigerant inlet end of a first evaporator of the heat pump, the refrigerant outlet end of the first evaporator of the heat pump is connected with the inlet end of a fourth refrigerant pipeline, a second throttle expansion valve is arranged on the third refrigerant pipeline, the outlet end of the third refrigerant pipeline is connected with the refrigerant inlet end of a second evaporator of the heat pump, the refrigerant outlet end of the second evaporator of the heat pump is connected with the inlet end of a fifth refrigerant pipeline, the fifth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, and the refrigerant outlet end of the ejector is connected with the inlet end of a sixth refrigerant pipeline, the outlet end of the sixth refrigerant pipeline is converged with the outlet end of the fourth refrigerant pipeline and is connected with the inlet end of the seventh refrigerant pipeline, the seventh refrigerant pipeline is connected with the inlet end of the first compressor along the medium flowing direction, the outlet end of the first compressor is respectively connected with the inlet end of the eighth refrigerant pipeline and the inlet end of the ninth refrigerant pipeline, the outlet end of the ninth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, and the outlet end of the eighth refrigerant pipeline is connected with the refrigerant inlet end of the heat pump condenser;
the outlet end of the first exhaust steam pipeline is connected with the heat-releasing inlet end of the first heat pump evaporator, the heat-releasing outlet end of the first heat pump evaporator is connected with the inlet end of the second exhaust steam pipeline, the outlet end of the second exhaust steam pipeline is connected with the heat-releasing inlet end of the second heat pump evaporator, and the heat-releasing outlet end of the second heat pump evaporator is connected with the inlet end of the third exhaust steam pipeline.
The third scheme is as follows: the utility model provides a heat pump circulation system of jet compression degree of depth condensation exhaust steam which characterized in that: comprises a first compressor, a heat pump condenser, a first throttle expansion valve, a heat pump first evaporator, a second throttle expansion valve, a heat pump second evaporator, an ejector, a first heat-carrying medium pipeline, a second heat-carrying medium pipeline, a first refrigerant pipeline, a second refrigerant pipeline, a third refrigerant pipeline, a fourth refrigerant pipeline, a fifth refrigerant pipeline, a sixth refrigerant pipeline, a seventh refrigerant pipeline, an eighth refrigerant pipeline, a ninth refrigerant pipeline, a first steam exhaust pipeline, a second steam exhaust pipeline, a third throttle expansion valve, an economizer, a tenth refrigerant pipeline, an eleventh refrigerant pipeline and a twelfth refrigerant pipeline,
the outlet end of the first heat-carrying medium pipeline is connected with the heat medium inlet end of the heat pump condenser, and the heat medium outlet end of the heat pump condenser is connected with the inlet end of the second heat-carrying medium pipeline;
the inlet end of the first refrigerant pipeline is connected with the refrigerant outlet end of the heat pump condenser, the outlet end of the first refrigerant pipeline is respectively connected with the inlet ends of a tenth refrigerant pipeline and an eleventh refrigerant pipeline, the tenth refrigerant pipeline is connected with the economizer along the medium flowing direction, the outlet end of the tenth refrigerant pipeline is respectively connected with the inlet ends of a second refrigerant pipeline and a third refrigerant pipeline, the eleventh refrigerant pipeline is provided with a third throttle expansion valve, the outlet end of the eleventh refrigerant pipeline is connected with the inlet end of the economizer, the outlet end of the economizer is connected with the inlet end of a twelfth refrigerant pipeline, the outlet end of the twelfth refrigerant pipeline is connected with the inlet end of the first compressor, the second refrigerant pipeline is provided with a first throttle expansion valve, and the outlet end of the second refrigerant pipeline is connected with the refrigerant inlet end of the first evaporator of the heat pump, the refrigerant outlet end of the first evaporator of the heat pump is connected with the inlet end of a fourth refrigerant pipeline, a second throttle expansion valve is arranged on a third refrigerant pipeline, the outlet end of the third refrigerant pipeline is connected with the refrigerant inlet end of a second evaporator of the heat pump, the refrigerant outlet end of the second evaporator of the heat pump is connected with the inlet end of a fifth refrigerant pipeline, the fifth refrigerant pipeline is connected with the refrigerant inlet end of an ejector, the refrigerant outlet end of the ejector is connected with the inlet end of a sixth refrigerant pipeline, the outlet end of the sixth refrigerant pipeline is converged with the outlet end of the fourth refrigerant pipeline and is connected with the inlet end of a seventh refrigerant pipeline, the seventh refrigerant pipeline is connected with the inlet end of a first compressor along the medium flowing direction, and the outlet end of the first compressor is respectively connected with the inlet end of an eighth refrigerant pipeline and the inlet end of a ninth refrigerant pipeline, the outlet end of the ninth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, and the outlet end of the eighth refrigerant pipeline is connected with the refrigerant inlet end of the heat pump condenser;
the outlet end of the first exhaust steam pipeline is connected with the heat-releasing inlet end of the first heat pump evaporator, the heat-releasing outlet end of the first heat pump evaporator is connected with the inlet end of the second exhaust steam pipeline, the outlet end of the second exhaust steam pipeline is connected with the heat-releasing inlet end of the second heat pump evaporator, and the heat-releasing outlet end of the second heat pump evaporator is connected with the inlet end of the third exhaust steam pipeline.
And the scheme is as follows: the utility model provides a heat pump circulation system of jet compression degree of depth condensation exhaust steam which characterized in that: comprises a first compressor, a heat pump condenser, a first throttle expansion valve, a heat pump first evaporator, a second throttle expansion valve, a heat pump second evaporator, an ejector, a first heat-carrying medium pipeline, a second heat-carrying medium pipeline, a first refrigerant pipeline, a second refrigerant pipeline, a third refrigerant pipeline, a fourth refrigerant pipeline, a fifth refrigerant pipeline, a sixth refrigerant pipeline, an eighth refrigerant pipeline, a ninth refrigerant pipeline, a first steam exhaust pipeline, a second steam exhaust pipeline, a third throttle expansion valve, a heat regenerator, a thirteenth refrigerant pipeline and a fourteenth refrigerant pipeline,
the outlet end of the first heat-carrying medium pipeline is connected with the heat medium inlet end of the heat pump condenser, and the heat medium outlet end of the heat pump condenser is connected with the inlet end of the second heat-carrying medium pipeline;
the inlet end of the first refrigerant pipeline is connected with the refrigerant outlet end of the heat pump condenser, the first refrigerant pipeline is connected with the heat regenerator along the medium flowing direction, the outlet end of the heat regenerator is respectively connected with the inlet end of the second refrigerant pipeline and the inlet end of the third refrigerant pipeline, the second refrigerant pipeline is provided with a first throttle expansion valve, the outlet end of the second refrigerant pipeline is connected with the refrigerant inlet end of the first evaporator of the heat pump, the refrigerant outlet end of the first evaporator of the heat pump is connected with the inlet end of the fourth refrigerant pipeline, the outlet end of the fourth refrigerant pipeline is connected with the medium inlet end of the heat regenerator, the medium outlet end of the heat regenerator is connected with the inlet end of the thirteenth refrigerant pipeline, the third refrigerant pipeline is provided with a second throttle expansion valve, and the outlet end of the third refrigerant pipeline is connected with the refrigerant of the second evaporator of the heat pump, the refrigerant outlet end of the second evaporator of the heat pump is connected with the inlet end of a fifth refrigerant pipeline, the fifth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, the refrigerant outlet end of the ejector is connected with the inlet end of a sixth refrigerant pipeline, the outlet end of the sixth refrigerant pipeline is converged with the outlet end of a seventh refrigerant pipeline and is connected with the inlet end of a fourteenth refrigerant pipeline, the outlet end of the fourteenth refrigerant pipeline is connected with the inlet end of a first compressor, the outlet end of the first compressor is respectively connected with the inlet ends of an eighth refrigerant pipeline and a ninth refrigerant pipeline, the outlet end of the ninth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, and the outlet end of the eighth refrigerant pipeline is connected with the refrigerant inlet end of the heat pump condenser;
the outlet end of the first exhaust steam pipeline is connected with the heat-releasing inlet end of the first heat pump evaporator, the heat-releasing outlet end of the first heat pump evaporator is connected with the inlet end of the second exhaust steam pipeline, the outlet end of the second exhaust steam pipeline is connected with the heat-releasing inlet end of the second heat pump evaporator, and the heat-releasing outlet end of the second heat pump evaporator is connected with the inlet end of the third exhaust steam pipeline.
Compared with the prior art, the invention has the beneficial effects that:
(1) the ejector is used for replacing a compressor in the existing heat pump system, high-pressure refrigerant steam pressurized by the first compressor enters the ejector through the ninth refrigerant pipeline, is mixed with low-pressure refrigerant steam in the second evaporator of the heat pump, and is pressurized to the refrigerant steam pressure generated by the first evaporator of the heat pump through the spray pipe;
(2) the invention realizes the cascade evaporation of the refrigerant through the first evaporator of the heat pump and the second evaporator of the heat pump, is set as double-effect evaporation, has smaller loss of heat transfer temperature difference, reduces the equipment cost while ensuring the production intensity of the evaporator, realizes the cascade compression of the refrigerant steam through the first compressor and the ejector, avoids all the refrigerant steam from needing deep compression, finally realizes the improvement of the performance coefficient of a heat pump circulating system through the cascade recovery of waste steam and waste heat and the cascade improvement of the energy quality, and can improve by 15 to 20 percent according to the display of test data;
(3) the economizer and the heat regenerator can be arranged according to budget and system requirements, the refrigerant in the tenth refrigerant pipeline is cooled in the economizer, and enters the heat pump for heat exchange after being deeply condensed by the first throttle expansion valve and the second throttle expansion valve, so that the heat pump efficiency can be effectively improved; the high-temperature refrigerant flows through the first refrigerant pipeline and enters the heat regenerator, and exchanges heat with low-temperature refrigerant steam flowing out of the first evaporator of the heat pump in the heat regenerator, so that the temperature of the high-temperature refrigerant is reduced, the refrigerating capacity and the heat pump efficiency are effectively improved, the exhaust temperature of the first compressor can be reduced by arranging the economizer and the heat regenerator, the power consumption of the compressor is reduced, the energy-saving purpose is achieved, more than 5 ten thousand yuan of water cost can be saved according to actual application, more than 100 ten thousand yuan of steam annual benefit is saved, and 800 tons/year of natural gas is saved.
Drawings
FIG. 1 is a schematic overall structure diagram of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of the overall structure of a second embodiment of the present invention;
FIG. 3 is a schematic diagram of the overall structure of a third embodiment of the present invention;
FIG. 4 is a schematic diagram of the overall structure of a fourth embodiment of the present invention;
wherein the direction of the arrows indicates the direction of the medium flow.
Description of reference numerals:
1-a first compressor, 2-a heat pump condenser, 3-a first throttle expansion valve, 4-a heat pump first evaporator, 5-a second throttle expansion valve, 6-a heat pump second evaporator, 7-an ejector, 8-a first heat carrier pipe, 9-a second heat carrier pipe, 10-a first refrigerant pipe, 11-a second refrigerant pipe, 12-a third refrigerant pipe, 13-a fourth refrigerant pipe, 14-a fifth refrigerant pipe, 15-a sixth refrigerant pipe, 16-a seventh refrigerant pipe, 17-an eighth refrigerant pipe, 18-a ninth refrigerant pipe, 19-a first steam exhaust pipe, 20-a second steam exhaust pipe, 21-a third steam exhaust pipe, 22-a third throttle expansion valve, 23-an economizer, 24-tenth refrigerant line, 25-eleventh refrigerant line, 26-twelfth refrigerant line, 27-regenerator, 28-thirteenth refrigerant line, 29-fourteenth refrigerant line.
Detailed Description
In the description of the present invention, it should be noted that terms such as "upper", "lower", "front", "rear", "left", "right", and the like in the embodiments indicate terms of orientation, and are used only for simplifying the positional relationship based on the drawings of the specification, and do not represent that the elements, devices, and the like indicated in the description must operate according to the specific orientation and the defined operation, method, and configuration, and such terms are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "first", "second" and "third" mentioned in the embodiments of the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The first specific embodiment is as follows: referring to fig. 1, the present invention provides a heat pump cycle system of jet compression type deep condensation exhaust steam, including a first compressor, a heat pump condenser, a first throttle expansion valve, a first evaporator of the heat pump, a second throttle expansion valve, a second evaporator of the heat pump, an ejector, a first heat carrier pipeline, a second heat carrier pipeline, a first refrigerant pipeline, a second refrigerant pipeline, a third refrigerant pipeline, a fourth refrigerant pipeline, a fifth refrigerant pipeline, a sixth refrigerant pipeline, a seventh refrigerant pipeline, an eighth refrigerant pipeline, a ninth refrigerant pipeline, a first exhaust steam pipeline, a second exhaust steam pipeline, and a third exhaust steam pipeline,
the outlet end of the first heat-carrying medium pipeline is connected with the heat medium inlet end of the heat pump condenser, and the heat medium outlet end of the heat pump condenser is connected with the inlet end of the second heat-carrying medium pipeline;
the inlet end of a first refrigerant pipeline is connected with the refrigerant outlet end of a heat pump condenser, the outlet end of the first refrigerant pipeline is respectively connected with the inlet end of a second refrigerant pipeline and the inlet end of a third refrigerant pipeline, a first throttle expansion valve is arranged on the second refrigerant pipeline, the outlet end of the second refrigerant pipeline is connected with the refrigerant inlet end of a first evaporator of the heat pump, the refrigerant outlet end of the first evaporator of the heat pump is connected with the inlet end of a fourth refrigerant pipeline, a second throttle expansion valve is arranged on the third refrigerant pipeline, the outlet end of the third refrigerant pipeline is connected with the refrigerant inlet end of a second evaporator of the heat pump, the refrigerant outlet end of the second evaporator of the heat pump is connected with the inlet end of a fifth refrigerant pipeline, the fifth refrigerant pipeline is connected with the refrigerant inlet end of an ejector, and the refrigerant outlet end of the ejector is connected with the inlet end of a sixth refrigerant pipeline, the outlet end of the sixth refrigerant pipeline is converged with the outlet end of the fourth refrigerant pipeline and is connected with the inlet end of the seventh refrigerant pipeline, the seventh refrigerant pipeline is connected with the inlet end of the first compressor along the medium flowing direction, the outlet end of the first compressor is respectively connected with the inlet end of the eighth refrigerant pipeline and the inlet end of the ninth refrigerant pipeline, the outlet end of the ninth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, and the outlet end of the eighth refrigerant pipeline is connected with the refrigerant inlet end of the heat pump condenser;
the outlet end of the first exhaust steam pipeline is connected with the heat-releasing inlet end of the first heat pump evaporator, the heat-releasing outlet end of the first heat pump evaporator is connected with the inlet end of the second exhaust steam pipeline, the outlet end of the second exhaust steam pipeline is connected with the heat-releasing inlet end of the second heat pump evaporator, and the heat-releasing outlet end of the second heat pump evaporator is connected with the inlet end of the third exhaust steam pipeline.
The operation principle of the embodiment is as follows:
the exothermic process of the dead steam comprises the following steps: the exhaust steam firstly enters a first heat pump first evaporator through a first exhaust steam pipeline to be condensed and released heat, the exhaust steam condensation is a phase change process, the temperature is kept unchanged, after the exhaust steam is condensed into water, the exhaust steam continuously enters a second heat pump first evaporator to be cooled and released heat, the temperature of the exhaust steam condensation is continuously reduced, in the heat pump first evaporator and the heat pump second evaporator, the exhaust steam transfers the whole condensation latent heat and part of temperature difference sensible heat to a refrigerant of the heat pump, and the recovery of the exhaust steam waste heat is realized;
thermodynamic cycle process of refrigerant: the ejector mixes the refrigerant steam generated by the second evaporator of the heat pump with the steam pressurized by the first compressor, so that the steam ejected from the ejector reaches the refrigerant steam pressure generated by the first evaporator of the heat pump, then the two refrigerant steams are converged and enter the first compressor for compression and pressure boosting, the exhaust gas of the first compressor enters the condenser of the heat pump for condensation and heat release (the heat is released to a heat-carrying medium), and is condensed into liquid refrigerant to flow out of the condenser of the heat pump;
the liquid refrigerant is divided into two paths after flowing out of the heat pump condenser through a first refrigerant pipeline, wherein the path with larger flow enters a first evaporator of the heat pump after being throttled, depressurized and cooled by a first throttle expansion valve through a second refrigerant pipeline, and absorbs the condensation latent heat of the dead steam in the first evaporator of the heat pump, the vapor is in a gaseous state, the other path with smaller flow enters the second evaporator of the heat pump after being throttled, depressurized and cooled by the second throttle expansion valve through the third refrigerant pipeline, and the sensible heat of the dead steam condensate is absorbed in the second evaporator of the heat pump, the dead steam condensate is evaporated into a gas state, then the gas refrigerant enters the ejector to be compressed and boosted to reach the refrigerant vapor pressure generated by the first evaporator of the heat pump, the exhaust gas of the ejector is converged with the refrigerant vapor generated by the first evaporator of the heat pump, and then the gas refrigerant enters the first compressor to be compressed and boosted, so that a complete refrigerant thermodynamic cycle process is completed.
Heat absorption process of heat transfer medium: the heat-carrying medium enters the heat pump condenser from the first heat-carrying medium pipeline, and because the temperature of the heat-carrying medium is lower than the saturation temperature of the exhaust gas of the refrigerant of the first compressor, the heat-carrying medium is heated by the high-pressure high-temperature refrigerant steam exhausted by the first compressor in the heat pump condenser, the recovered heat of the exhaust steam is transferred to the heat-carrying medium, and meanwhile, the grade of the heat is improved.
The invention analyzes the reason of energy saving:
because a multi-effect evaporation system needs high vacuum degree guarantee, the temperature of the exhaust steam condensate is required to be reduced to be low, if a conventional heat pump circulation is adopted, the evaporation temperature of a heat pump needs to be designed according to the outlet temperature of the exhaust steam condensate, the condensation temperature of the heat pump needs to be designed according to the outlet temperature of a heat-carrying medium, the difference between the condensation temperature and the evaporation temperature of the heat pump is large, the coefficient of performance of the heat pump system is very low according to the refrigeration common sense, and the energy conservation and the economy of the exhaust steam heat recovery by adopting the heat pump system are difficult to embody.
The basic reason that the conventional heat pump cycle is not economical is that only one-stage evaporation is adopted, so that the evaporation temperature is too low, and the advantages of higher saturation temperature and unchanged temperature during the phase change of the dead steam are not fully utilized. It can be found by calculation that the first evaporator of the heat pump bears most of the latent heat of condensation in the exhaust steam heat recovery, while the second evaporator of the heat pump bears only a smaller part of the sensible heat in the exhaust steam heat recovery. That is, most of the waste heat of the exhaust steam is released under the condition of higher temperature, and is used for recovering the sensible heat of only a small part of the exhaust steam condensate. The small part of the refrigerant vapor can be independently compressed by an ejector, and after reaching the corresponding saturation pressure of the refrigerant, the small part of the refrigerant vapor is mixed with the most part of the refrigerant vapor and enters the first compressor for compression. Through the cascade evaporation and the cascade compression, the cascade recovery of the waste steam and the waste heat and the cascade promotion of the energy quality are realized, and the deep compression of all refrigerant steam is avoided, so that the performance coefficient of the heat pump circulating system is improved.
The present invention replaces the conventional compressor with an ejector. The ejector is a device which mixes two fluids with different pressures with each other to form one fluid and directly increases the pressure of the ejection fluid without consuming mechanical energy. The high-pressure refrigerant steam pressurized by the first compressor enters the ejector through the ninth refrigerant pipeline, is mixed with the low-pressure refrigerant steam in the second evaporator of the heat pump, and is pressurized to the refrigerant steam pressure generated by the first evaporator of the heat pump through the spray pipe. The ejector is effective in saving energy and cost compared to conventional compressors.
The dead steam in the invention can be various low-pressure secondary steam of various evaporation concentration processes, and can also be flash steam or secondary steam of a steam system. The heat-carrying medium can be water, heat-carrying oil, air and other heat-carrying media which can be used for process production or heat supply. The refrigerant can use freon working medium, or ammonia, alkane working medium and other working medium.
When the temperature reduction range of the exhaust steam condensate is large, the method is suitable for adopting the embodiment. Because the larger the cooling amplitude of the dead steam condensate is, the larger the difference between the evaporating pressure of the second evaporator of the heat pump and the evaporating pressure of the first evaporator of the heat pump is, the exhaust pressure of the ejector may not reach the intermediate air supply pressure of the first compressor, and therefore, the exhaust gas of the ejector can only be mixed with the refrigerant steam generated by the first evaporator of the heat pump and then enters the first compressor from the main air inlet of the first compressor.
The second specific embodiment: referring to fig. 2, a heat pump cycle system of jet compression type deep condensation exhaust steam includes a first compressor, a heat pump condenser, a first throttle expansion valve, a first evaporator of the heat pump, a second throttle expansion valve, a second evaporator of the heat pump, an ejector, a first heat-carrying medium pipeline, a second heat-carrying medium pipeline, a first refrigerant pipeline, a second refrigerant pipeline, a third refrigerant pipeline, a fourth refrigerant pipeline, a fifth refrigerant pipeline, a sixth refrigerant pipeline, a seventh refrigerant pipeline, an eighth refrigerant pipeline, a ninth refrigerant pipeline, a first exhaust steam pipeline, a second exhaust steam pipeline, and a third exhaust steam pipeline,
the outlet end of the first heat-carrying medium pipeline is connected with the heat medium inlet end of the heat pump condenser, and the heat medium outlet end of the heat pump condenser is connected with the inlet end of the second heat-carrying medium pipeline;
the inlet end of a first refrigerant pipeline is connected with the refrigerant outlet end of the heat pump condenser, a first throttle expansion valve is arranged on the first refrigerant pipeline, the outlet end of the first refrigerant pipeline is respectively connected with the inlet end of a second refrigerant pipeline and the inlet end of a third refrigerant pipeline, the outlet end of the second refrigerant pipeline is connected with the refrigerant inlet end of a first evaporator of the heat pump, the refrigerant outlet end of the first evaporator of the heat pump is connected with the inlet end of a fourth refrigerant pipeline, a second throttle expansion valve is arranged on the third refrigerant pipeline, the outlet end of the third refrigerant pipeline is connected with the refrigerant inlet end of a second evaporator of the heat pump, the refrigerant outlet end of the second evaporator of the heat pump is connected with the inlet end of a fifth refrigerant pipeline, the fifth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, and the refrigerant outlet end of the ejector is connected with the inlet end of a sixth refrigerant pipeline, the outlet end of the sixth refrigerant pipeline is converged with the outlet end of the fourth refrigerant pipeline and is connected with the inlet end of the seventh refrigerant pipeline, the seventh refrigerant pipeline is connected with the inlet end of the first compressor along the medium flowing direction, the outlet end of the first compressor is respectively connected with the inlet end of the eighth refrigerant pipeline and the inlet end of the ninth refrigerant pipeline, the outlet end of the ninth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, and the outlet end of the eighth refrigerant pipeline is connected with the refrigerant inlet end of the heat pump condenser;
the outlet end of the first exhaust steam pipeline is connected with the heat-releasing inlet end of the first heat pump evaporator, the heat-releasing outlet end of the first heat pump evaporator is connected with the inlet end of the second exhaust steam pipeline, the outlet end of the second exhaust steam pipeline is connected with the heat-releasing inlet end of the second heat pump evaporator, and the heat-releasing outlet end of the second heat pump evaporator is connected with the inlet end of the third exhaust steam pipeline.
The operation principle of the embodiment is as follows: the present embodiment is different from the first embodiment in that the first expansion valve is connected to the first refrigerant pipe in the medium flow direction, and the present embodiment aims to improve the heat pump efficiency by deeply condensing the refrigerant vapor entering the second evaporator of the heat pump in a step-throttling manner. Other combinations and connections of this embodiment are the same as those of the first embodiment.
The third concrete implementation scheme is as follows: referring to fig. 3, a heat pump cycle system of jet compression type deep condensation exhaust steam includes a first compressor, a heat pump condenser, a first throttle expansion valve, a first evaporator of the heat pump, a second throttle expansion valve, a second evaporator of the heat pump, an ejector, a first heat-carrying medium pipeline, a second heat-carrying medium pipeline, a first refrigerant pipeline, a second refrigerant pipeline, a third refrigerant pipeline, a fourth refrigerant pipeline, a fifth refrigerant pipeline, a sixth refrigerant pipeline, a seventh refrigerant pipeline, an eighth refrigerant pipeline, a ninth refrigerant pipeline, a first exhaust steam pipeline, a second exhaust steam pipeline, a third throttle expansion valve, an economizer, a tenth refrigerant pipeline, an eleventh refrigerant pipeline, and a twelfth refrigerant pipeline,
the outlet end of the first heat-carrying medium pipeline is connected with the heat medium inlet end of the heat pump condenser, and the heat medium outlet end of the heat pump condenser is connected with the inlet end of the second heat-carrying medium pipeline;
the inlet end of the first refrigerant pipeline is connected with the refrigerant outlet end of the heat pump condenser, the outlet end of the first refrigerant pipeline is respectively connected with the inlet ends of a tenth refrigerant pipeline and an eleventh refrigerant pipeline, the tenth refrigerant pipeline is connected with the economizer along the medium flowing direction, the outlet end of the tenth refrigerant pipeline is respectively connected with the inlet ends of a second refrigerant pipeline and a third refrigerant pipeline, a third throttle expansion valve is arranged on the eleventh refrigerant pipeline, the outlet end of the eleventh refrigerant pipeline is connected with the inlet end of the economizer, the outlet end of the economizer is connected with the inlet end of a twelfth refrigerant pipeline, the outlet end of the twelfth refrigerant pipeline is connected with the inlet end of the first compressor, a first throttle expansion valve is arranged on the second refrigerant pipeline, and the outlet end of the second refrigerant pipeline is connected with the refrigerant inlet end of the first evaporator of the heat pump, the refrigerant outlet end of the first evaporator of the heat pump is connected with the inlet end of a fourth refrigerant pipeline, a second throttle expansion valve is arranged on a third refrigerant pipeline, the outlet end of the third refrigerant pipeline is connected with the refrigerant inlet end of a second evaporator of the heat pump, the refrigerant outlet end of the second evaporator of the heat pump is connected with the inlet end of a fifth refrigerant pipeline, the fifth refrigerant pipeline is connected with the refrigerant inlet end of an ejector, the refrigerant outlet end of the ejector is connected with the inlet end of a sixth refrigerant pipeline, the outlet end of the sixth refrigerant pipeline is converged with the outlet end of the fourth refrigerant pipeline and is connected with the inlet end of a seventh refrigerant pipeline, the seventh refrigerant pipeline is connected with the inlet end of a first compressor along the medium flowing direction, and the outlet end of the first compressor is respectively connected with the inlet end of an eighth refrigerant pipeline and the inlet end of a ninth refrigerant pipeline, the outlet end of the ninth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, and the outlet end of the eighth refrigerant pipeline is connected with the refrigerant inlet end of the heat pump condenser;
the outlet end of the first exhaust steam pipeline is connected with the heat-releasing inlet end of the first heat pump evaporator, the heat-releasing outlet end of the first heat pump evaporator is connected with the inlet end of the second exhaust steam pipeline, the outlet end of the second exhaust steam pipeline is connected with the heat-releasing inlet end of the second heat pump evaporator, and the heat-releasing outlet end of the second heat pump evaporator is connected with the inlet end of the third exhaust steam pipeline.
The operation principle of the embodiment is as follows: the present embodiment is different from the first embodiment in that an economizer and a third throttle expansion valve are added. The economizer is a heat exchanger which absorbs heat through throttling evaporation of a refrigerant, so that the other part of the refrigerant is supercooled, the refrigerant in a tenth refrigerant pipeline is cooled in the economizer in a heat dissipation manner, and enters a heat pump for heat exchange after being deeply condensed by a first throttling expansion valve and a second throttling expansion valve, and the heat pump efficiency can be effectively improved. The refrigerant passing through the third expansion valve is heated in the economizer and then enters the first compressor, so that the exhaust temperature of the compressor can be effectively reduced, the power consumption of the compressor is reduced, and the purpose of energy conservation is achieved. Other combinations and connections of this embodiment are the same as those of the first embodiment.
The fourth specific embodiment: referring to fig. 4, a heat pump cycle system of jet compression type deep condensation exhaust steam includes a first compressor, a heat pump condenser, a first throttle expansion valve, a first evaporator of the heat pump, a second throttle expansion valve, a second evaporator of the heat pump, an ejector, a first heat carrier pipeline, a second heat carrier pipeline, a first refrigerant pipeline, a second refrigerant pipeline, a third refrigerant pipeline, a fourth refrigerant pipeline, a fifth refrigerant pipeline, a sixth refrigerant pipeline, an eighth refrigerant pipeline, a ninth refrigerant pipeline, a first exhaust steam pipeline, a second exhaust steam pipeline, a third throttle expansion valve, a heat regenerator, a thirteenth refrigerant pipeline, and a fourteenth refrigerant pipeline,
the outlet end of the first heat-carrying medium pipeline is connected with the heat medium inlet end of the heat pump condenser, and the heat medium outlet end of the heat pump condenser is connected with the inlet end of the second heat-carrying medium pipeline;
the inlet end of the first refrigerant pipeline is connected with the refrigerant outlet end of the heat pump condenser, the first refrigerant pipeline is connected with the heat regenerator along the medium flowing direction, the outlet end of the heat regenerator is respectively connected with the inlet end of the second refrigerant pipeline and the inlet end of the third refrigerant pipeline, the second refrigerant pipeline is provided with a first throttle expansion valve, the outlet end of the second refrigerant pipeline is connected with the refrigerant inlet end of the first evaporator of the heat pump, the refrigerant outlet end of the first evaporator of the heat pump is connected with the inlet end of the fourth refrigerant pipeline, the outlet end of the fourth refrigerant pipeline is connected with the medium inlet end of the heat regenerator, the medium outlet end of the heat regenerator is connected with the inlet end of the thirteenth refrigerant pipeline, the third refrigerant pipeline is provided with a second throttle expansion valve, and the outlet end of the third refrigerant pipeline is connected with the refrigerant inlet end of the second evaporator of the heat pump, the refrigerant outlet end of the second evaporator of the heat pump is connected with the inlet end of a fifth refrigerant pipeline, the fifth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, the refrigerant outlet end of the ejector is connected with the inlet end of a sixth refrigerant pipeline, the outlet end of the sixth refrigerant pipeline is converged with the outlet end of a seventh refrigerant pipeline and is connected with the inlet end of a fourteenth refrigerant pipeline, the outlet end of the fourteenth refrigerant pipeline is connected with the inlet end of a first compressor, the outlet end of the first compressor is respectively connected with the inlet ends of an eighth refrigerant pipeline and a ninth refrigerant pipeline, the outlet end of the ninth refrigerant pipeline is connected with the refrigerant inlet end of the ejector, and the outlet end of the eighth refrigerant pipeline is connected with the refrigerant inlet end of the heat pump condenser;
the outlet end of the first exhaust steam pipeline is connected with the heat-releasing inlet end of the first heat pump evaporator, the heat-releasing outlet end of the first heat pump evaporator is connected with the inlet end of the second exhaust steam pipeline, the outlet end of the second exhaust steam pipeline is connected with the heat-releasing inlet end of the second heat pump evaporator, and the heat-releasing outlet end of the second heat pump evaporator is connected with the inlet end of the third exhaust steam pipeline.
The operation principle of the embodiment is as follows: the difference between the first embodiment and the second embodiment is that a heat regenerator, also called a gas-liquid heat exchanger, is added, and is a heat exchange device for supercooling refrigerant liquid and superheating steam. The high-temperature refrigerant flows into the heat regenerator through the first refrigerant pipeline, and exchanges heat with low-temperature refrigerant steam flowing out of the first evaporator of the heat pump in the heat regenerator, so that the temperature of the high-temperature refrigerant is reduced, and the refrigerating capacity and the heat pump efficiency are effectively improved. The low-temperature refrigerant steam is heated and then enters the first compressor, and the exhaust temperature of the compressor can be effectively reduced, so that the power consumption of the compressor is reduced, and the purpose of energy conservation is achieved. Other combinations and connections of this embodiment are the same as those of the first embodiment.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (4)
1. The utility model provides a heat pump circulation system of jet compression degree of depth condensation exhaust steam which characterized in that: comprises a first compressor (1), a heat pump condenser (2), a first throttle expansion valve (3), a heat pump first evaporator (4), a second throttle expansion valve (5), a heat pump second evaporator (6), an ejector (7), a first heat-carrying medium pipeline (8), a second heat-carrying medium pipeline (9), a first refrigerant pipeline (10), a second refrigerant pipeline (11), a third refrigerant pipeline (12), a fourth refrigerant pipeline (13), a fifth refrigerant pipeline (14), a sixth refrigerant pipeline (15), a seventh refrigerant pipeline (16), an eighth refrigerant pipeline (17), a ninth refrigerant pipeline (18), a first steam exhaust pipeline (19), a second steam exhaust pipeline (20) and a third steam exhaust pipeline (21),
the outlet end of the first heat-carrying medium pipeline (8) is connected with the heat medium inlet end of the heat pump condenser (2), and the heat medium outlet end of the heat pump condenser (2) is connected with the inlet end of the second heat-carrying medium pipeline (9);
the inlet end of a first refrigerant pipeline (10) is connected with the refrigerant outlet end of a heat pump condenser (2), the outlet end of the first refrigerant pipeline (10) is respectively connected with the inlet end of a second refrigerant pipeline (11) and the inlet end of a third refrigerant pipeline (12), a first throttle expansion valve (3) is arranged on the second refrigerant pipeline (11), the outlet end of the second refrigerant pipeline (11) is connected with the refrigerant inlet end of a first evaporator (4) of the heat pump, the refrigerant outlet end of the first evaporator (4) of the heat pump is connected with the inlet end of a fourth refrigerant pipeline (13), a second throttle expansion valve (5) is arranged on the third refrigerant pipeline (12), the outlet end of the third refrigerant pipeline (12) is connected with the refrigerant inlet end of a second evaporator (6) of the heat pump, the refrigerant outlet end of the second evaporator (6) of the heat pump is connected with the inlet end of a fifth refrigerant pipeline (14), the fifth refrigerant pipeline (14) is connected with the refrigerant inlet end of the ejector (7), the refrigerant outlet end of the ejector (7) is connected with the inlet end of a sixth refrigerant pipeline (15), the outlet end of the sixth refrigerant pipeline (15) is converged with the outlet end of a fourth refrigerant pipeline (13) and is connected with the inlet end of a seventh refrigerant pipeline (16), the seventh refrigerant pipeline (16) is connected with the inlet end of the first compressor (1) along the medium flowing direction, the outlet end of the first compressor (1) is respectively connected with the inlet end of an eighth refrigerant pipeline (17) and the inlet end of a ninth refrigerant pipeline (18), the outlet end of the ninth refrigerant pipeline (18) is connected with the refrigerant inlet end of the ejector (7), and the outlet end of the eighth refrigerant pipeline (17) is connected with the refrigerant inlet end of the heat pump condenser (2);
the outlet end of the first exhaust steam pipeline (19) is connected with the heat-releasing inlet end of the first heat pump evaporator (4), the heat-releasing outlet end of the first heat pump evaporator (4) is connected with the inlet end of the second exhaust steam pipeline (20), the outlet end of the second exhaust steam pipeline (20) is connected with the heat-releasing inlet end of the second heat pump evaporator (6), and the heat-releasing outlet end of the second heat pump evaporator (6) is connected with the inlet end of the third exhaust steam pipeline (21).
2. A jet compression type heat pump circulating system for deeply condensing exhaust steam is characterized by comprising a first compressor (1), a heat pump condenser (2), a first throttle expansion valve (3), a heat pump first evaporator (4), a second throttle expansion valve (5), a heat pump second evaporator (6), an ejector (7), a first heat-carrying medium pipeline (8), a second heat-carrying medium pipeline (9), a first refrigerant pipeline (10), a second refrigerant pipeline (11), a third refrigerant pipeline (12), a fourth refrigerant pipeline (13), a fifth refrigerant pipeline (14), a sixth refrigerant pipeline (15), a seventh refrigerant pipeline (16), an eighth refrigerant pipeline (17), a ninth refrigerant pipeline (18), a first exhaust steam pipeline (19), a second exhaust steam pipeline (20) and a third exhaust steam pipeline (21),
the outlet end of the first heat-carrying medium pipeline (8) is connected with the heat medium inlet end of the heat pump condenser (2), and the heat medium outlet end of the heat pump condenser (2) is connected with the inlet end of the second heat-carrying medium pipeline (9);
the inlet end of a first refrigerant pipeline (10) is connected with the refrigerant outlet end of a heat pump condenser (2), a first throttle expansion valve (3) is arranged on the first refrigerant pipeline (10), the outlet end of the first refrigerant pipeline (10) is respectively connected with the inlet end of a second refrigerant pipeline (11) and the inlet end of a third refrigerant pipeline (12), the outlet end of the second refrigerant pipeline (11) is connected with the refrigerant inlet end of a first evaporator (4) of the heat pump, the refrigerant outlet end of the first evaporator (4) of the heat pump is connected with the inlet end of a fourth refrigerant pipeline (13), a second throttle expansion valve (5) is arranged on the third refrigerant pipeline (12), the outlet end of the third refrigerant pipeline (12) is connected with the refrigerant inlet end of a second evaporator (6) of the heat pump, the refrigerant outlet end of the second evaporator (6) of the heat pump is connected with the inlet end of a fifth refrigerant pipeline (14), the fifth refrigerant pipeline (14) is connected with the refrigerant inlet end of the ejector (7), the refrigerant outlet end of the ejector (7) is connected with the inlet end of a sixth refrigerant pipeline (15), the outlet end of the sixth refrigerant pipeline (15) is converged with the outlet end of a fourth refrigerant pipeline (13) and is connected with the inlet end of a seventh refrigerant pipeline (16), the seventh refrigerant pipeline (16) is connected with the inlet end of the first compressor (1) along the medium flowing direction, the outlet end of the first compressor (1) is respectively connected with the inlet end of an eighth refrigerant pipeline (17) and the inlet end of a ninth refrigerant pipeline (18), the outlet end of the ninth refrigerant pipeline (18) is connected with the refrigerant inlet end of the ejector (7), and the outlet end of the eighth refrigerant pipeline (17) is connected with the refrigerant inlet end of the heat pump condenser (2);
the outlet end of the first exhaust steam pipeline (19) is connected with the heat-releasing inlet end of the first heat pump evaporator (4), the heat-releasing outlet end of the first heat pump evaporator (4) is connected with the inlet end of the second exhaust steam pipeline (20), the outlet end of the second exhaust steam pipeline (20) is connected with the heat-releasing inlet end of the second heat pump evaporator (6), and the heat-releasing outlet end of the second heat pump evaporator (6) is connected with the inlet end of the third exhaust steam pipeline (21).
3. The utility model provides a heat pump circulation system of jet compression degree of depth condensation exhaust steam which characterized in that: the heat pump air conditioner comprises a first compressor (1), a heat pump condenser (2), a first throttle expansion valve (3), a heat pump first evaporator (4), a second throttle expansion valve (5), a heat pump second evaporator (6), an ejector (7), a first heat-carrying medium pipeline (8), a second heat-carrying medium pipeline (9), a first refrigerant pipeline (10), a second refrigerant pipeline (11), a third refrigerant pipeline (12), a fourth refrigerant pipeline (13), a fifth refrigerant pipeline (14), a sixth refrigerant pipeline (15), a seventh refrigerant pipeline (16), an eighth refrigerant pipeline (17), a ninth refrigerant pipeline (18), a first steam exhaust pipeline (19), a second steam exhaust pipeline (20), a third steam exhaust pipeline (21), a third throttle expansion valve (22), an economizer (23), a tenth refrigerant pipeline (24), an eleventh refrigerant pipeline (25), A twelfth refrigerant line (26),
the outlet end of the first heat-carrying medium pipeline (8) is connected with the heat medium inlet end of the heat pump condenser (2), and the heat medium outlet end of the heat pump condenser (2) is connected with the inlet end of the second heat-carrying medium pipeline (9);
the inlet end of a first refrigerant pipeline (10) is connected with the refrigerant outlet end of a heat pump condenser (2), the outlet end of the first refrigerant pipeline (10) is respectively connected with the inlet end of a tenth refrigerant pipeline (24) and the inlet end of an eleventh refrigerant pipeline (25), the tenth refrigerant pipeline (24) is connected with an economizer (23) along the medium flowing direction, the outlet end of the tenth refrigerant pipeline (24) is respectively connected with the inlet end of a second refrigerant pipeline (11) and the inlet end of a third refrigerant pipeline (12), the eleventh refrigerant pipeline (25) is provided with a third throttling expansion valve (22), the outlet end of the eleventh refrigerant pipeline (25) is connected with the economizer (23), the outlet end of the economizer (23) is connected with the inlet end of a twelfth refrigerant pipeline (26), the outlet end of the twelfth refrigerant pipeline (26) is connected with the inlet end of a first compressor (1), a first throttle expansion valve (3) is arranged on the second refrigerant pipeline (11), the outlet end of the second refrigerant pipeline (11) is connected with the refrigerant inlet end of the heat pump first evaporator (4), the refrigerant outlet end of the heat pump first evaporator (4) is connected with the inlet end of the fourth refrigerant pipeline (13), a second throttle expansion valve (5) is arranged on the third refrigerant pipeline (12), the outlet end of the third refrigerant pipeline (12) is connected with the refrigerant inlet end of the heat pump second evaporator (6), the refrigerant outlet end of the heat pump second evaporator (6) is connected with the inlet end of the fifth refrigerant pipeline (14), the fifth refrigerant pipeline (14) is connected with the refrigerant inlet end of the ejector (7), the refrigerant outlet end of the ejector (7) is connected with the inlet end of the sixth refrigerant pipeline (15), the outlet end of the sixth refrigerant pipeline (15) is converged with the outlet end of the fourth refrigerant pipeline (13) and is joined with the seventh refrigerant pipeline (c) 16) The seventh refrigerant pipeline (16) is connected with the inlet end of the first compressor (1) along the medium flowing direction, the outlet end of the first compressor (1) is respectively connected with the inlet end of the eighth refrigerant pipeline (17) and the inlet end of the ninth refrigerant pipeline (18), the outlet end of the ninth refrigerant pipeline (18) is connected with the refrigerant inlet end of the ejector (7), and the outlet end of the eighth refrigerant pipeline (17) is connected with the refrigerant inlet end of the heat pump condenser (2);
the outlet end of the first exhaust steam pipeline (19) is connected with the heat-releasing inlet end of the first heat pump evaporator (4), the heat-releasing outlet end of the first heat pump evaporator (4) is connected with the inlet end of the second exhaust steam pipeline (20), the outlet end of the second exhaust steam pipeline (20) is connected with the heat-releasing inlet end of the second heat pump evaporator (6), and the heat-releasing outlet end of the second heat pump evaporator (6) is connected with the inlet end of the third exhaust steam pipeline (21).
4. The utility model provides a heat pump circulation system of jet compression degree of depth condensation exhaust steam which characterized in that: comprises a first compressor (1), a heat pump condenser (2), a first throttle expansion valve (3), a heat pump first evaporator (4), a second throttle expansion valve (5), a heat pump second evaporator (6), an ejector (7), a first heat-carrying medium pipeline (8), a second heat-carrying medium pipeline (9), a first refrigerant pipeline (10), a second refrigerant pipeline (11), a third refrigerant pipeline (12), a fourth refrigerant pipeline (13), a fifth refrigerant pipeline (14), a sixth refrigerant pipeline (15), an eighth refrigerant pipeline (17), a ninth refrigerant pipeline (18), a first steam exhaust pipeline (19), a second steam exhaust pipeline (20), a third steam exhaust pipeline (21), a third throttle expansion valve (22), a heat regenerator (27), a thirteenth refrigerant pipeline (28) and a fourteenth refrigerant pipeline (29),
the outlet end of the first heat-carrying medium pipeline (8) is connected with the heat medium inlet end of the heat pump condenser (2), and the heat medium outlet end of the heat pump condenser (2) is connected with the inlet end of the second heat-carrying medium pipeline (9);
the inlet end of a first refrigerant pipeline (10) is connected with the refrigerant outlet end of a heat pump condenser (2), the first refrigerant pipeline (10) is connected with a heat regenerator (27) along the medium flowing direction, the outlet end of the heat regenerator (27) is respectively connected with the inlet end of a second refrigerant pipeline (11) and the inlet end of a third refrigerant pipeline (12), a first throttle expansion valve (3) is arranged on the second refrigerant pipeline (11), the outlet end of the second refrigerant pipeline (11) is connected with the refrigerant inlet end of a first evaporator (4) of the heat pump, the refrigerant outlet end of the first evaporator (4) of the heat pump is connected with the inlet end of a fourth refrigerant pipeline (13), the outlet end of the fourth refrigerant pipeline (13) is connected with the medium inlet end of the heat regenerator (27), and the medium outlet end of the heat regenerator (27) is connected with the inlet end of a thirteenth refrigerant pipeline (28), a second throttle expansion valve (5) is arranged on the third refrigerant pipeline (12), the outlet end of the third refrigerant pipeline (12) is connected with the refrigerant inlet end of the heat pump second evaporator (6), the refrigerant outlet end of the heat pump second evaporator (6) is connected with the inlet end of a fifth refrigerant pipeline (14), the fifth refrigerant pipeline (14) is connected with the refrigerant inlet end of an ejector (7), the refrigerant outlet end of the ejector (7) is connected with the inlet end of a sixth refrigerant pipeline (15), the outlet end of the sixth refrigerant pipeline (15) is converged with the outlet end of a seventh refrigerant pipeline (16) and is connected with the inlet end of a fourteenth refrigerant pipeline (29), the outlet end of the fourteenth refrigerant pipeline (29) is connected with the inlet end of the first compressor (1), the outlet end of the first compressor (1) is respectively connected with the inlet end of an eighth refrigerant pipeline (17) and the inlet end of a ninth refrigerant pipeline (18), the outlet end of a ninth refrigerant pipeline (18) is connected with the refrigerant inlet end of the ejector (7), and the outlet end of an eighth refrigerant pipeline (17) is connected with the refrigerant inlet end of the heat pump condenser (2);
the outlet end of the first exhaust steam pipeline (19) is connected with the heat-releasing inlet end of the first heat pump evaporator (4), the heat-releasing outlet end of the first heat pump evaporator (4) is connected with the inlet end of the second exhaust steam pipeline (20), the outlet end of the second exhaust steam pipeline (20) is connected with the heat-releasing inlet end of the second heat pump evaporator (6), and the heat-releasing outlet end of the second heat pump evaporator (6) is connected with the inlet end of the third exhaust steam pipeline (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110573060.2A CN113280529B (en) | 2021-05-25 | 2021-05-25 | Heat pump circulation system of jet compression type deep condensation exhaust steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110573060.2A CN113280529B (en) | 2021-05-25 | 2021-05-25 | Heat pump circulation system of jet compression type deep condensation exhaust steam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113280529A CN113280529A (en) | 2021-08-20 |
| CN113280529B true CN113280529B (en) | 2022-06-14 |
Family
ID=77281494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110573060.2A Active CN113280529B (en) | 2021-05-25 | 2021-05-25 | Heat pump circulation system of jet compression type deep condensation exhaust steam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113280529B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101082454A (en) * | 2007-03-28 | 2007-12-05 | 魏仕英 | Rotating fluid-jet spray pressure charging type cold water preparation method and water cooling machine |
| CN101825372A (en) * | 2010-04-14 | 2010-09-08 | 东南大学 | Device and method for combined ejection refrigeration and vapor compression refrigeration cycle |
| CN207963226U (en) * | 2018-01-11 | 2018-10-12 | 西安交通大学 | A kind of injector expansion self-cascade refrigeration system system |
| CN109442804A (en) * | 2018-12-17 | 2019-03-08 | 上海新奥新能源技术有限公司 | A kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust |
-
2021
- 2021-05-25 CN CN202110573060.2A patent/CN113280529B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101082454A (en) * | 2007-03-28 | 2007-12-05 | 魏仕英 | Rotating fluid-jet spray pressure charging type cold water preparation method and water cooling machine |
| CN101825372A (en) * | 2010-04-14 | 2010-09-08 | 东南大学 | Device and method for combined ejection refrigeration and vapor compression refrigeration cycle |
| CN207963226U (en) * | 2018-01-11 | 2018-10-12 | 西安交通大学 | A kind of injector expansion self-cascade refrigeration system system |
| CN109442804A (en) * | 2018-12-17 | 2019-03-08 | 上海新奥新能源技术有限公司 | A kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust |
Non-Patent Citations (2)
| Title |
|---|
| Thermodynamic analysis of ejector cooling cycles with heat-driven feed pumping devices;Guangming Chen等;《Energy》;20190131;第186卷;第1-14页 * |
| 蒸汽压缩/喷射制冷系统喷射器设计及节能分析;戚大威等;《制冷学报》;20140228;第35卷(第1期);第103-108页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113280529A (en) | 2021-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203848433U (en) | Heat pipe and heat pump dual-mode air conditioner with evaporative condenser | |
| US20180172320A1 (en) | Multi-stage plate-type evaporation absorption cooling device and method | |
| CN202216448U (en) | Diffusion absorption refrigeration and vapor compression refrigeration combined recycle system | |
| CN102322705B (en) | Circulating device combining diffusing absorption-type refrigeration and vapor compression refrigeration | |
| CN103398485A (en) | Steam compression refrigerating system device and supercooling method | |
| KR101138970B1 (en) | Defrosting system using air cooling refrigerant evaporator and condenser | |
| CN110552749A (en) | Transcritical carbon dioxide circulation waste heat power generation system of coupling lithium bromide absorption refrigeration | |
| CN101737998B (en) | Absorption type refrigerating unit for fully recovering waste heat | |
| CN212299530U (en) | Refrigerating system with pressure control device | |
| CN109442804B (en) | Double-stage compression heat pump circulation system for deep condensation of exhaust steam | |
| CN113280529B (en) | Heat pump circulation system of jet compression type deep condensation exhaust steam | |
| CN204902309U (en) | Multistage plate type evaporation absorbed refrigeration device | |
| CN216204314U (en) | Waste heat recovery type high-temperature hot water-steam unit | |
| CN105066502A (en) | Direct burning absorption refrigeration method and device for recovering phase change heat | |
| CN209230074U (en) | A kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust | |
| CN210751315U (en) | Air source multiple-effect vacuum evaporation system applied to cutting fluid concentration | |
| CN113091349A (en) | High-efficient absorption heat pump | |
| CN113932472A (en) | Operation method based on gas engine heat pump and organic Rankine cycle coupling system | |
| CN110986425A (en) | Take vapor heat pump system of solar energy concurrent heating | |
| CN210718177U (en) | Regenerative fuel oil cooling device | |
| CN220152983U (en) | Composite condenser exhaust steam waste heat recovery device | |
| CN215002381U (en) | High-efficient absorption heat pump | |
| CN215216753U (en) | Cascade refrigerating unit | |
| CN214065298U (en) | Oil field heat pump heating system | |
| CN216281670U (en) | Hot water supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |