CN217604422U - Multi-connection supply system based on heat pump - Google Patents
Multi-connection supply system based on heat pump Download PDFInfo
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- CN217604422U CN217604422U CN202221745266.5U CN202221745266U CN217604422U CN 217604422 U CN217604422 U CN 217604422U CN 202221745266 U CN202221745266 U CN 202221745266U CN 217604422 U CN217604422 U CN 217604422U
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Abstract
An aspect of the present invention is to provide a multi-connection system based on a heat pump. The multi-combined supply system comprises a cold storage and supply system, a heat storage system, a heat pump system and a flash evaporation and heat supply system. The cold storage and supply system comprises a cold storage water tank in which a cold supply coil is arranged. The heat storage system comprises a heat storage water tank internally provided with an electric heater, and a water outlet of the heat storage water tank is formed in the heat storage water tank. The heat pump system comprises an evaporation and cold storage coil, a heat pump compressor, a condensation and heat storage coil and a heat pump expansion valve which are sequentially connected and form a circulation loop, wherein the evaporation and cold storage coil is arranged in the cold storage water tank and close to the position of the cold supply coil, and the condensation and heat storage coil is arranged in the heat storage water tank and close to the position of the electric heater. The flash evaporation heat supply system comprises a flash evaporation tank with a flash evaporation atomizing nozzle arranged inside, and a water outlet of the heat storage water tank is communicated with the flash evaporation atomizing nozzle. The multi-connection supply system has the advantages of safety, stability, low operation cost of equipment and high economical efficiency of steam generation.
Description
Technical Field
The utility model relates to a heat pump technology field, concretely relates to confession system more that ally oneself with based on heat pump.
Background
Steam boilers are often used in various process flows of industry and daily life as equipment for providing high-temperature and high-pressure steam.
The steam boiler mainly comprises a fuel boiler and an electric boiler.
A fuel boiler is a boiler that generates steam by directly using combustion heat of fuel, and has a relatively low operation cost but a large environmental impact, and thus has been banned and modified in recent years.
Compared with a fuel boiler, the electric heating boiler is more environment-friendly and has more flexible adjusting capability. However, the electric heat conversion efficiency of the electric heating boiler is lower than 1, that is, one part of electric energy can only be converted into less than one part of heat energy, so that the energy conversion efficiency of the electric heating boiler is low. The electric boiler has the advantages of huge electric energy consumption, higher use cost and larger load impact on national power grids.
Therefore, an efficient, energy-saving and low-pollution industrial boiler adopting clean fuel and corresponding new technology is a trend of market development, and boiler technology adopting new energy-saving technology like a heat pump steam system and the like is developed more quickly. However, the heat pump steam system on the market is still not developed and matured at present, and has the characteristic of strong dependence on heat source conditions and environment generally. In addition, the heat pump steam supply system has high operation power consumption, so the operation cost is high during peak electricity, and the energy efficiency is low. And the existing heat pump steam supply system has limited use mode and is difficult to meet different requirements of users.
Therefore, a new technology to solve the above problems is urgently needed.
SUMMERY OF THE UTILITY MODEL
In order to make up for the deficiency of prior art, the application provides a many confession systems that ally oneself with based on heat pump. The multi-connection supply system can heat the water working medium in the heat storage water tank by using the heat pump system based on the double effects of refrigeration and heating of the heat pump, realizes first-stage medium temperature heat storage, cools the water working medium in the cold storage water tank, and realizes simultaneous cold storage and heat storage. This ally oneself with confession system more can also be through the mode of millet electric heating with water working medium further heating become high temperature high pressure hot water and store, realize second grade high temperature heat-retaining. And this many confession system that ally oneself with can produce corresponding high temperature and high pressure vapor and hot water through flash evaporation heating system when using to coupling flash evaporation compressor further improves the temperature and the pressure of flash evaporation steam, makes the system can satisfy the steam of supplying high temperature hot water, different temperature and pressure, satisfies different operating mode demands. Meanwhile, the cold supply and storage system can realize cold supply by directly supplying cold water or supplying cold air through heat exchange.
In addition, the multi-supply system also has the advantages of safety, stability, low operation cost of equipment and high economical efficiency of steam generation.
In order to achieve the above purpose, the utility model provides a following technical scheme: a multi-connection supply system based on a heat pump.
The multi-combined supply system comprises a cold storage and supply system, a heat storage system, a heat pump system and a flash evaporation and heat supply system. The cold storage and supply system comprises a cold storage water tank in which a cold supply coil is arranged. The heat storage system comprises a heat storage water tank, an electric heater is arranged in the heat storage water tank, and a water outlet of the heat storage water tank is formed in the heat storage water tank. The heat pump system comprises an evaporation and cold storage coil, a heat pump compressor, a condensation and heat storage coil and a heat pump expansion valve which are sequentially connected and form a circulation loop, wherein the evaporation and cold storage coil is arranged in the cold storage water tank and close to the position of the cold supply coil, and the condensation and heat storage coil is arranged in the heat storage water tank and close to the position of the electric heater. The flash evaporation heat supply system comprises a flash evaporation tank, a flash evaporation atomizing nozzle is arranged in the flash evaporation heat supply system, and a water outlet of the heat storage water tank is communicated with the flash evaporation atomizing nozzle.
Preferably, the cold storage and supply system comprises a cold storage water tank water inlet pipe and a cold storage water tank water inlet stop valve arranged on the cold storage water tank water inlet pipe, a cold storage water tank water inlet is arranged on the cold storage water tank, and the cold storage water tank water inlet pipe is communicated with the cold storage water tank water inlet. The cold storage and supply system further comprises a cold storage water tank outlet pipe and a cold storage water tank outlet stop valve arranged on the cold storage water tank outlet pipe, a cold storage water tank outlet is arranged on the cold storage water tank, and the cold storage water tank outlet pipe is communicated with the cold storage water tank outlet.
Preferably, the cold storage and supply system further comprises a cold storage water tank drain pipe and a cold storage water tank drain stop valve arranged on the cold storage water tank drain pipe, wherein a cold storage water tank drain opening is arranged on the cold storage water tank, and the cold storage water tank drain pipe is communicated with the cold storage water tank drain opening.
Preferably, the heat storage system further comprises a heat storage water tank drain pipe and a heat storage water tank drain stop valve arranged on the heat storage water tank drain pipe, a heat storage water tank water outlet is formed in the heat storage water tank, and the heat storage water tank drain pipe is communicated with the heat storage water tank water outlet.
Preferably, the heat storage system comprises a heat storage water supplementing pipe, the heat storage system further comprises a heat storage water supplementing pump and a heat storage water supplementing stop valve which are arranged on the heat storage water supplementing pipe, a heat storage water tank water supplementing opening is formed in the heat storage water tank, and the heat storage water tank water supplementing pipe is communicated with the heat storage water tank water supplementing opening.
Preferably, the flash distillation heating system further includes the flash distillation inlet tube, and heat storage water tank delivery port and flash distillation atomizing nozzle are linked together through the flash distillation inlet tube, further is provided with flash distillation inlet reducing valve, flash distillation inlet circulating pump and flash distillation inlet stop valve on the flash distillation inlet tube.
Preferably, the flash evaporation heating system further comprises a flash evaporation compressor, a flash evaporation tank air outlet is formed in the flash evaporation tank, an air inlet of the flash evaporation compressor is communicated with the flash evaporation tank air outlet through a flash evaporation compression pipe, and a flash evaporation compression stop valve is arranged on the flash evaporation compression pipe.
Preferably, the flash evaporation heating system further comprises a flash evaporation exhaust by-pass pipe, one end of the flash evaporation exhaust by-pass pipe is communicated with the gas outlet of the flash evaporation tank, the other end of the flash evaporation exhaust by-pass pipe is communicated with the gas outlet of the flash evaporation compressor, and a flash evaporation exhaust by-pass stop valve is arranged on the flash evaporation exhaust by-pass pipe.
Preferably, the flash distillation heating system further includes the flash distillation moisturizing pump, and the flash distillation moisturizing pump is linked together through the flash distillation moisturizing pipe with the moisturizing mouth of flash distillation compressor, is provided with flash distillation moisturizing stop valve on the flash distillation moisturizing pipe.
Preferably, the flash evaporation heat supply system comprises a flash evaporation circulating pipe, the flash evaporation heat supply system further comprises a flash evaporation circulating pump and a flash evaporation circulating stop valve which are arranged on the flash evaporation circulating pipe, a circulating water inlet is formed in the heat storage water tank, a circulating water outlet is formed in the flash evaporation tank, one end of the flash evaporation circulating pipe is communicated with the circulating water inlet, and the other end of the flash evaporation circulating pipe is communicated with the circulating water outlet.
The multi-connected system based on the heat pump is based on the double effects of refrigeration and heating of the heat pump, the heat pump system is used for heating the water working medium in the heat storage water tank, the first-stage medium-temperature heat storage is realized, the water working medium in the cold storage water tank is cooled, and the cold storage and the heat storage are simultaneously realized. The multi-connection supply system based on the heat pump effectively utilizes the performance advantage of the heat pump, reduces the consumption of electric energy and reduces the operation cost and expense. In addition, the multi-connected system based on the heat pump does not need an additional heat source, and effectively solves the problem that an application production site depends on the heat source.
In addition, the multi-connected system based on the heat pump can also store heat by utilizing valley electricity. Specifically, the multi-connected system based on the heat pump can store heat energy in an electric heating mode at the valley period of urban electricity at night, further solves the problem that an application and production site depends on a heat source, and can be directly used in a plurality of heat-source-free application scenes.
In addition, the multi-connected system based on the heat pump stores heat by using valley electricity and generates high-temperature and high-pressure steam in a flash evaporation and steam compression mode, so that the huge power consumption of an electric boiler is avoided, the operation cost of equipment is reduced, and the economical efficiency of steam generation is improved.
In addition, the multi-supply system based on the heat pump can store heat through high-temperature and high-pressure hot water. The water working medium has low price, low use cost, no corrosion to the water tank and low use cost. This many confession system that ally oneself with based on heat pump produces high temperature high pressure steam through the mode that carries out the flash distillation with high temperature high pressure hot water, need not extra heat transfer system, and heat exchange efficiency is high and equipment cost is low.
In addition, the multi-connection supply system based on the heat pump can meet the requirements of high-temperature and high-pressure steam of more than 200 ℃ and the requirements of medium-temperature and medium-pressure steam of 100-200 ℃ in a flash evaporation and coupling flash evaporation compressor mode, and can meet the steam requirements in almost all industrial heat supply ranges.
The multi-connected supply system based on the heat pump can be a cold, hot and steam triple supply system, and particularly can supply cold water, cold air, hot water and steam with different temperatures and pressures for users according to the requirements of the users. The multi-supply system based on the heat pump further expands the available range and can meet more user demands.
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-supply system based on a heat pump in an embodiment of the present application.
The reference numbers illustrate:
100. a cold water storage tank; 102. a cooling coil; 104. a water inlet of the cold storage water tank; 106. a water outlet of the cold storage water tank; 108. a cold water storage tank water outlet; 120. a cold water storage tank air inlet pipe; 122. an air inlet stop valve of the cold water storage tank; 130. an air outlet pipe of the cold storage water tank; 132. an air outlet stop valve of the cold water storage tank; 140. a cold water storage tank water inlet pipe; 142. a water inlet stop valve of the cold storage water tank; 150. a cold water storage tank outlet pipe; 152. a cold water storage tank water outlet stop valve; 160. a cold water storage tank drain pipe; 162. a cold water storage tank drainage stop valve; 200. a heat storage water tank; 202. an electric heater; 204. a water outlet of the heat storage water tank; 206. a water outlet of the heat storage water tank; 208. a water replenishing port of the heat storage water tank; 210. a circulating water inlet; 220. a heat storage water tank drain pipe; 222. a drainage stop valve of the heat storage water tank; 230. a heat storage water replenishing pipe; 232. a heat storage water replenishing pump; 234. a heat storage and water replenishing stop valve; 300. evaporating and storing the cold coil; 302. a heat pump compressor; 304. condensing the heat storage coil; 306. a heat pump expansion valve; 400. a flash tank; 402. a flash vaporization atomizing nozzle; 404. a water outlet of the flash tank; 406. an air outlet of the flash tank; 408. a circulating water outlet; 420. a water outlet pipe of the flash tank; 422. a flash tank water outlet stop valve; 430. a flash evaporation water inlet pipe; 432. a flash evaporation water inlet pressure reducing valve; 434. a flash evaporation water inlet circulating pump; 436. a flash evaporation water inlet stop valve; 440. a flash compressor; 450. flash evaporating the compressed tube; 452. a flash compression stop valve; 460. a flash evaporation exhaust bypass pipe; 462. a flash exhaust bypass stop valve; 470. a flash evaporation water replenishing pump; 472. a flash evaporation water replenishing pipe; 474. a flash evaporation water replenishing stop valve; 480. a flash evaporation circulating pipe; 482. a flash circulating pump; 484. flash evaporation circulation stop valve.
Detailed Description
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as is understood by those of ordinary skill in the art to which the 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Embodiments of the present application relate to a multiple supply system based on a heat pump as shown in fig. 1. The multi-connected system comprises a cold storage and supply system, a heat storage system, a heat pump system and a flash evaporation and heat supply system.
The cold storage and supply system includes a cold storage water tank 100 in which a cooling coil 102 is provided. In some embodiments, one end of the cooling coil 102 in the cold storage water tank 100 is connected to a cold storage water tank inlet pipe 120, and a cold storage water tank inlet shutoff valve 122 may be provided on the cold storage water tank inlet pipe 120. The other end of the cold supply coil 102 is connected to a cold storage tank outlet pipe 130, and a cold storage tank outlet shutoff valve 132 may be disposed on the cold storage tank outlet pipe 130. The cold water storage tank 100 may be used to store a water working medium having a relatively low temperature.
The heat storage system comprises a heat storage water tank 200 with an electric heater 202 arranged inside, and a heat storage water tank water outlet 204 is arranged on the heat storage water tank 200. The hot water storage tank 200 may be used to store a water working medium having a relatively high temperature.
The heat pump system comprises an evaporation and cold storage coil 300, a heat pump compressor 302, a condensation and heat storage coil 304 and a heat pump expansion valve 306 which are sequentially connected and form a circulation loop, wherein the evaporation and cold storage coil 300 is arranged in the cold storage water tank 100 and close to the cold supply coil 102, and the condensation and heat storage coil 304 is arranged in the heat storage water tank 200 and close to the electric heater 202.
The flash evaporation heat supply system comprises a flash evaporation tank 400, a flash evaporation atomizing nozzle 402 is arranged in the flash evaporation heat supply system, and a water outlet 204 of the hot water storage tank is communicated with the flash evaporation atomizing nozzle 402. In some embodiments, the flash tank 400 is provided with a flash tank water outlet 404, and the flash tank water outlet 404 is communicated with a flash tank water outlet pipe 420. A flash tank water outlet stop valve 422 can be arranged on the flash tank water outlet pipe 420.
In some embodiments, the cold storage and supply system further includes a cold storage water tank inlet pipe 140 and a cold storage water tank inlet shut-off valve 142 disposed on the cold storage water tank inlet pipe 140, the cold storage water tank 100 is provided with a cold storage water tank inlet 104, and the cold storage water tank inlet pipe 140 is in communication with the cold storage water tank inlet 104. The cold storage tank inlet pipe 140 and the cold storage tank inlet shutoff valve 142 may be used to control the replenishment of the water working substance into the cold storage tank 100.
In some embodiments, the cold storage and supply system further includes a cold storage water tank outlet pipe 150 and a cold storage water tank outlet stop valve 152 disposed on the cold storage water tank outlet pipe 150, the cold storage water tank 100 is provided with the cold storage water tank outlet 106, and the cold storage water tank outlet pipe 150 is communicated with the cold storage water tank outlet 106. The cold water storage tank outlet pipe 150 and the cold water storage tank outlet shutoff valve 152 may be used to control the supply of water working fluid in the cold water storage tank 100 to the user.
In some embodiments, the cold storage and supply system further includes a cold storage tank drain 160 and a cold storage tank drain shut-off valve 162 disposed on the cold storage tank drain 160, the cold storage tank 100 is provided with a cold storage tank drain 108, and the cold storage tank drain 160 is in communication with the cold storage tank drain 108. The cold storage tank drain 160 and the cold storage tank drain shut-off valve 162 may be used to control the discharge of waste water or unused water in the cold storage tank 100.
In some embodiments, the heat storage system further includes a hot water storage tank drain 220 and a hot water storage tank drain stop valve 222 disposed on the hot water storage tank drain 220, the hot water storage tank 200 is provided with a hot water storage tank drain 206, and the hot water storage tank drain 220 is communicated with the hot water storage tank drain 206. The hot-storage-tank drain pipe 220 and the hot-storage-tank drain cut-off valve 222 may be used to control the discharge of the water medium in the hot-storage tank 200.
In some embodiments, the heat storage system includes a heat storage water supply pipe 230, the heat storage system further includes a heat storage water supply pump 232 and a heat storage water supply stop valve 234 disposed on the heat storage water supply pipe 230, the heat storage water tank 200 is provided with a heat storage water tank water supply port 208, and the heat storage water tank 200 water supply pipe is communicated with the heat storage water tank water supply port 208. The heat storage water replenishing pipe 230, the heat storage water replenishing pump 232 and the heat storage water replenishing stop valve 234 can be used for controlling the water working medium to be replenished into the heat storage water tank 200.
In some embodiments, the flash heating system further includes a flash water inlet pipe 430, the hot water storage tank outlet 204 and the flash atomization nozzle 402 are communicated through the flash water inlet pipe 430, and the flash water inlet pipe 430 is further provided with a flash water inlet pressure reducing valve 432, a flash water inlet circulation pump 434 and a flash water inlet stop valve 436.
In some embodiments, the flash heating system further includes a flash compressor 440, the flash tank 400 is provided with a flash tank outlet 406, an air inlet of the flash compressor 440 is communicated with the flash tank outlet 406 through a flash compression pipe 450, and the flash compression pipe 450 is provided with a flash compression stop valve 452. A flash compressor 440 may be used to further compress the vapor flowing from the flash tank outlet 406.
In some embodiments, the flash heating system further comprises a flash exhaust bypass pipe 460, one end of the flash exhaust bypass pipe 460 is communicated with the flash tank outlet 406, the other end of the flash exhaust bypass pipe 460 is communicated with the outlet of the flash compressor 440, and a flash exhaust bypass stop valve 462 is disposed on the flash exhaust bypass pipe 460.
In some embodiments, the flash evaporation heating system further includes a flash evaporation water replenishing pump 470, the flash evaporation water replenishing pump 470 is communicated with the water replenishing port of the flash evaporation compressor 440 through a flash evaporation water replenishing pipe 472, and a flash evaporation water replenishing stop valve 474 is arranged on the flash evaporation water replenishing pipe 472. The flash evaporation water supplementing pipe 472 can convey external supplementing water into a compression cavity of the flash evaporation compressor 440, so that the superheat degree of the compression process is reduced, and the safety and the high efficiency of the compression process are ensured.
In some embodiments, the flash heating system includes a flash circulation pipe 480, the flash heating system further includes a flash circulation pump 482 and a flash circulation stop valve 484 disposed on the flash circulation pipe 480, the hot water storage tank 200 is provided with a circulation water inlet 210, the flash tank 400 is provided with a circulation water outlet 408, one end of the flash circulation pipe 480 is communicated with the circulation water inlet 210, and the other end of the flash circulation pipe 480 is communicated with the circulation water outlet 408.
The operation of the multi-supply system based on the heat pump will be briefly described with reference to fig. 1.
When the electricity is in the valley at night, the electricity price is low, the electricity load is sufficient, and the multi-connected system can realize the heat storage of the valley electricity by utilizing the high-temperature high-pressure water working medium. The specific operation mode may be as follows:
when the system works at night, the heat pump system works, and working media sequentially flow through the evaporation and cold storage coil 300, the heat pump compressor 302, the condensation and heat storage coil 304 and the heat pump expansion valve 306 to form a complete cycle. When the working medium flows through the evaporation cold-storage coil 300, heat energy can be absorbed from the water working medium in the cold-storage water tank 100, and the temperature of the water working medium in the cold-storage water tank 100 is reduced to below 10 ℃. When the working medium flows through the condensation heat storage coil 304, heat energy can be released to the water working medium in the heat storage water tank 200, and the temperature of the water working medium in the heat storage water tank 200 is raised to about 120 ℃, so that the first-stage heating of the water working medium in the heat storage water tank 200 is realized.
In addition, the electric heater 202 arranged in the heat storage water tank 200 works and heats the water working medium in the heat storage water tank 200, so that the temperature of the water working medium is further increased to more than 200 ℃, and the corresponding pressure is more than 1.555 Mpa. At this time, most of the water in the hot water storage tank 200 exists in a liquid state, and only a small amount of the water exists in a vapor state. So far, the electric heater 202 arranged in the heat storage water tank 200 realizes the second-stage heating of the water working medium in the heat storage water tank 200, and finally realizes the technical effect that the multi-combined supply system realizes the valley electricity heat storage by utilizing the high-temperature and high-pressure water working medium.
When the system is operated at night, enough water working medium should be stored in the hot water storage tank 200 and the cold water storage tank 100. By opening the heat storage and water supplement stop valve 234, the water working medium can flow into the heat storage water tank 200 through the heat storage and water supplement water pump 232 and the heat storage and water supplement pipe 230, so that sufficient water working medium is stored in the heat storage water tank 200. In addition, it is possible to ensure sufficient water medium is stored in the cold water storage tank 100 by opening the cold water storage tank water inlet shut-off valve 142 to allow the water medium to flow into the cold water storage tank 100 through the cold water storage tank water inlet pipe 140.
And when the peak power is in the daytime, the electricity price is more expensive and the electric load is less sufficient, and the multi-connection system can fully utilize the energy stored by the valley power to perform multi-connection supply. The specific operation mode can be as follows:
when the system works in the daytime, the flash evaporation heat supply system works, the flash evaporation water inlet stop valve 436 is opened, the opening degree of the flash evaporation water inlet pressure reducing valve 432 is adjusted, high-temperature and high-pressure water working medium in the heat storage water tank 200 flows into the flash evaporation tank 400 through the flash evaporation water inlet circulating pump 434 through the flash evaporation water inlet pipe 430 and is subjected to pressure reduction and flash evaporation in the flash evaporation tank 400, and therefore high-temperature and high-pressure steam with the temperature of 100-200 ℃ and the pressure of 0.10142-1.5549 MPa and high-temperature and high-pressure saturated water with the temperature of 100-200 ℃ and the pressure of 0.10142-1.5549 MPa are generated.
The multi-connected supply system based on the heat pump can be a cold, hot and steam triple supply system, and particularly can supply cold water, cold air, hot water and steam with different temperatures and pressures for users according to the requirements of the users.
When the user needs the supply of the cold water, the cold water storage tank water outlet stop valve 152 may be opened, so that the cold water in the cold water storage tank 100 is supplied to the user through the cold water storage tank water outlet pipe 150. Meanwhile, the cold water storage tank water inlet shutoff valve 142 may be opened, so that return water and supplementary water may flow into the cold water storage tank 100 through the cold water storage tank water inlet pipe 140 to supplement the aqueous medium in the cold water storage tank 100.
When the user needs the supply of cold air, the cold storage water tank air inlet stop valve 122 and the cold storage water tank air outlet stop valve 132 can be opened, so that the air flows into the cold supply coil 102 through the cold storage water tank air inlet pipe 120 and is cooled, and the cooled air is supplied to the user through the cold storage water tank air outlet pipe 130.
When a user needs hot water supply, the water outlet stop valve 422 of the flash tank can be opened, so that high-temperature and high-pressure saturated water with the temperature of 100-200 ℃ and the pressure of 0.10142-1.5549 MPa in the flash tank 400 is supplied to the user through the water outlet pipe 420 of the flash tank.
When a user does not need hot water supply, the water outlet stop valve 422 of the flash tank can be closed, and the flash circulation stop valve 484 is opened, so that high-temperature and high-pressure saturated water with the temperature of 100-200 ℃ and the pressure of 0.10142-1.5549 MPa in the flash tank 400 flows into the hot water storage tank 200 through the flash circulation pump 482 and the flash circulation pipe 480.
According to different user demands, the multi-supply system based on the heat pump can have different steam supply modes.
In the first supply mode, high-temperature and high-pressure steam with the temperature of 100-200 ℃ and the pressure of 0.10142-1.5549 MPa can be directly supplied to users through the flash exhaust bypass pipe 460 by opening the flash exhaust bypass stop valve 462 and closing the flash compression stop valve 452.
In the second supply mode, the flash exhaust bypass stop valve 462 is closed, the flash compression stop valve 452 is opened, high-temperature high-pressure steam with the temperature of 100-200 ℃ and the pressure of 0.10142-1.5549 MPa flows into the flash compressor 440 through the flash compression pipe 450, and is further compressed into high-temperature high-pressure steam with the temperature of more than 200 ℃ and the pressure of more than 1.5549MPa to be supplied to customers for use, so that the heat demand of the steam with the temperature of more than 200 ℃ can be met. When the flash evaporation compressor 440 works, the flash evaporation water supplementing stop valve 474 can be opened, so that external supplementing water flows into the compression cavity of the flash evaporation compressor 440 through the flash evaporation water supplementing pump 470 through the flash evaporation water supplementing pipe 472, thereby reducing the superheat degree of the compression process and ensuring the safety and high efficiency of the compression process.
In summary, the multi-split supply system based on the heat pump is based on the refrigeration and heating double effects of the heat pump, the heat pump system is used for heating the water working medium in the heat storage water tank 200, the first-stage medium temperature heat storage is realized, the water working medium in the cold storage water tank 100 is cooled, and the cold storage and the heat storage are simultaneously realized. The multi-connection supply system based on the heat pump effectively utilizes the performance advantage of the heat pump, reduces the consumption of electric energy and reduces the operation cost and expense. In addition, the multi-connected system based on the heat pump does not need an additional heat source, and effectively solves the problem that an application production site depends on the heat source.
In addition, the multi-connected system based on the heat pump can also store heat by utilizing valley electricity. Specifically, the multi-connected system based on the heat pump can store heat energy in an electric heating mode at the valley period of urban electricity at night, further solves the problem that an application and production site depends on a heat source, and can be directly used in a plurality of heat-source-free application scenes.
In addition, the multi-connected system based on the heat pump stores heat by using valley electricity and generates high-temperature and high-pressure steam in a flash evaporation and steam compression mode, so that the huge power consumption of an electric boiler is avoided, the operation cost of equipment is reduced, and the economical efficiency of steam generation is improved.
In addition, the multi-supply system based on the heat pump can store heat through high-temperature and high-pressure hot water. The water working medium has low price, low use cost, no corrosion to the water tank and low use cost. This many confession system that ally oneself with based on heat pump produces high temperature high pressure steam through the mode that carries out the flash distillation with high temperature high pressure hot water, need not extra heat transfer system, and heat exchange efficiency is high and equipment cost is low.
In addition, the multi-split supply system based on the heat pump can meet the requirements of high-temperature and high-pressure steam of more than 200 ℃ and the requirements of medium-temperature and medium-pressure steam of 100-200 ℃ in a flash evaporation and coupling flash evaporation compressor 440 mode, and can meet the steam requirements in almost all industrial heating ranges.
The multi-connection supply system based on the heat pump can be a cold, hot and steam three-connection supply system, and particularly can supply cold water, cold air, hot water and steam with different temperatures and pressures to users according to the requirements of the users. The multi-connection supply system based on the heat pump further expands the available range and can meet the requirements of more users.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A multi-combined supply system based on a heat pump is characterized in that the multi-combined supply system comprises a cold storage and supply system, a heat storage system, a heat pump system and a flash evaporation and heat supply system, wherein the cold storage and supply system comprises a cold storage water tank internally provided with a cooling coil; the heat storage system comprises a heat storage water tank internally provided with an electric heater, and a water outlet of the heat storage water tank is formed in the heat storage water tank; the heat pump system comprises an evaporation and cold storage coil, a heat pump compressor, a condensation and heat storage coil and a heat pump expansion valve which are sequentially connected and form a circulation loop, wherein the evaporation and cold storage coil is arranged in the cold storage water tank and close to the cold supply coil, and the condensation and heat storage coil is arranged in the heat storage water tank and close to the electric heater; the flash evaporation heating system comprises a flash evaporation tank with a flash evaporation atomizing nozzle arranged inside, and a water outlet of the heat storage water tank is communicated with the flash evaporation atomizing nozzle.
2. A multiple supply system based on heat pump as claimed in claim 1, wherein the cold storage and supply system comprises a cold storage water tank inlet pipe and a cold storage water tank inlet stop valve disposed on the cold storage water tank inlet pipe, the cold storage water tank is provided with a cold storage water tank inlet, and the cold storage water tank inlet pipe is communicated with the cold storage water tank inlet; the cold storage and cold supply system further comprises a cold storage water tank water outlet pipe and a cold storage water tank water outlet stop valve arranged on the cold storage water tank water outlet pipe, a cold storage water tank water outlet is formed in the cold storage water tank, and the cold storage water tank water outlet pipe is communicated with the cold storage water tank water outlet.
3. A multi-split system based on heat pump as set forth in claim 1, wherein the cold storage and supply system further comprises a cold storage water tank drain pipe and a cold storage water tank drain stop valve disposed on the cold storage water tank drain pipe, the cold storage water tank is provided with a cold storage water tank drain opening, and the cold storage water tank drain pipe is communicated with the cold storage water tank drain opening.
4. A multi-split system based on heat pump as claimed in claim 1, wherein the heat storage system further comprises a heat storage water tank drain pipe and a heat storage water tank drain stop valve arranged on the heat storage water tank drain pipe, a heat storage water tank drain port is arranged on the heat storage water tank, and the heat storage water tank drain pipe is communicated with the heat storage water tank drain port.
5. A multi-split supply system based on heat pump as claimed in claim 1, wherein the heat storage system comprises a heat storage water replenishing pipe, the heat storage system further comprises a heat storage water replenishing pump and a heat storage water replenishing stop valve which are arranged on the heat storage water replenishing pipe, a heat storage water tank water replenishing port is arranged on the heat storage water tank, and the heat storage water tank water replenishing pipe is communicated with the heat storage water tank water replenishing port.
6. A multi-connected system based on heat pump as claimed in claim 1, wherein the flash evaporation heat supply system further comprises a flash evaporation water inlet pipe, the heat storage water tank water outlet and the flash evaporation atomizing nozzle are communicated through the flash evaporation water inlet pipe, and a flash evaporation water inlet pressure reducing valve, a flash evaporation water inlet circulating pump and a flash evaporation water inlet stop valve are further arranged on the flash evaporation water inlet pipe.
7. A multi-split supply system based on a heat pump as claimed in claim 1, wherein the flash heat supply system further comprises a flash compressor, the flash tank is provided with a flash tank gas outlet, the gas inlet of the flash compressor is communicated with the flash tank gas outlet through a flash compression pipe, and the flash compression pipe is provided with a flash compression stop valve.
8. A multi-supply system based on heat pump as claimed in claim 7, wherein the flash heat supply system further comprises a flash exhaust by-pass pipe, one end of the flash exhaust by-pass pipe is communicated with the flash tank gas outlet, the other end of the flash exhaust by-pass pipe is communicated with the gas outlet of the flash compressor, and a flash exhaust by-pass stop valve is arranged on the flash exhaust by-pass pipe.
9. A multi-connected heat pump-based system according to claim 7, wherein the flash evaporation heat supply system further comprises a flash evaporation water replenishing pump, the flash evaporation water replenishing pump is communicated with a water replenishing port of the flash evaporation compressor through a flash evaporation water replenishing pipe, and a flash evaporation water replenishing stop valve is arranged on the flash evaporation water replenishing pipe.
10. A multi-connection supply system based on heat pump as claimed in claim 1, wherein the flash evaporation heat supply system comprises a flash evaporation circulation pipe, the flash evaporation heat supply system further comprises a flash evaporation circulation pump and a flash evaporation circulation stop valve arranged on the flash evaporation circulation pipe, the heat storage water tank is provided with a circulation water inlet, the flash evaporation tank is provided with a circulation water outlet, one end of the flash evaporation circulation pipe is communicated with the circulation water inlet, and the other end of the flash evaporation circulation pipe is communicated with the circulation water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221745266.5U CN217604422U (en) | 2022-07-06 | 2022-07-06 | Multi-connection supply system based on heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221745266.5U CN217604422U (en) | 2022-07-06 | 2022-07-06 | Multi-connection supply system based on heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217604422U true CN217604422U (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221745266.5U Active CN217604422U (en) | 2022-07-06 | 2022-07-06 | Multi-connection supply system based on heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217604422U (en) |
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2022
- 2022-07-06 CN CN202221745266.5U patent/CN217604422U/en active Active
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