Heat pump steam supply system

Abstract

The utility model provides a heat pump steam supply system which comprises a heat pump, a flash tank, a water storage tank and a first three-way valve. When the heat pump steam supply system is started, the first three-way valve communicates with the heat pump and the flash tank, and after the heat pump heats water to the first temperature, hot water is conveyed to the flash tank for flash evaporation, and steam is obtained. When the heat pump steam supply system stops, the first three-way valve is communicated with the heat pump and the water storage tank, the heat pump conveys hot water to the water storage tank, the flash tank stops flash evaporation and stops conveying steam to the steam using end, and the delay time for the heat pump steam supply system to stop conveying steam to the steam using end can be shortened. The water storage tank stores hot water, when the heat pump steam supply system is started again, the hot water in the water storage tank can be conveyed to the heat pump to be heated, the time for the heat pump to heat the water to the first temperature is shortened, and the delay time for the heat pump steam supply system to start to convey steam to the steam using end can be shortened. Therefore, during intermittent steam use, the steam supply stability of the heat pump steam supply system can be improved, and the steam supply quality of the heat pump steam supply system can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heat pump steam supply system, especially relates to a heat pump steam supply system. BACKGROUND

[0002] For the heat pump steam supply system, the steam supply load will fluctuate with the steam use load, and when the steam use end intermittently stops steam supply, it not only affects the economic operation of the heat pump, but also directly affects the steam quality and product quality. For example, when the heat pump steam user is a wine making enterprise, steam is needed during steaming and wine making, and steam supply needs to be stopped during grain replacement. Due to the requirement of the wine making process, there is an intermittent steam use situation. If a conventional heat pump steam supply system is used for control, when the steam use end stops steam use, the heat cannot be discharged from the system and will soon reach the upper limit of the set parameter, and the heat pump main machine stops running; when the steam use end uses steam again, the steam quality rapidly decreases due to the fact that the main machine does not start, and the system needs to be started after a delay due to the influence of the equipment, the system response is lagged, the steam quality is decreased, and the product quality of the enterprise is seriously affected and great losses are caused.

[0003] At present, some heat pump steam supply systems use a combined energy storage method in the system to adjust, and when the energy use decreases, a part of the excess heat energy is stored in a closed water tank; when the energy use increases, the part of the excess heat is released. Due to a series of problems such as low heat storage, large investment, complex control, slow response, unchangeable steam quality fluctuation, and heat pump energy efficiency decrease during energy storage, the conventional heat pump steam supply system using the energy storage method is not ideal for the intermittent steam use situation, and how to control the system to stably supply steam and keep the steam quality unchanged is a difficult problem to be solved. UTILITY MODEL CONTENTS

[0004] The technical purpose of the utility model is to provide a heat pump steam supply system, which aims to solve the problem that when the heat pump steam supply system starts / stops, the steam output to the steam use end is delayed, and the steam supply to the steam use end is unstable and the steam quality changes when the steam is intermittently used.

[0005] To solve the above technical problem, the utility model provides a heat pump steam supply system, which comprises:

[0006] A heat pump, comprising a first inlet and a first hot water outlet, is used for heating water entering from the first inlet to make the water reach a first temperature and then discharge the water from the first hot water outlet;

[0007] A flash tank, comprising a second inlet, a second hot water outlet and a steam outlet, is used for receiving hot water discharged from the first hot water outlet, the second hot water outlet is connected with the first inlet, and the steam outlet is connected with a steam use end;

[0008] a water storage tank, comprising a third inlet, a fourth inlet and a first outlet, the third inlet is connected to the first hot water outlet, the fourth inlet is connected to an external water source, the first outlet is connected to the first inlet;

[0009] a first three-way valve, comprising a first interface, a second interface and a third interface, the first interface is connected to the first hot water outlet, the second interface is connected to the second inlet, the third interface is connected to the third inlet, the first three-way valve is used to control the flow direction of the hot water discharged from the first hot water outlet to the flash tank or the water storage tank.

[0010] Further, the water storage tank comprises a second outlet;

[0011] The heat pump steam supply system comprises a second three-way valve, the second three-way valve comprises a fourth interface, a fifth interface and a sixth interface, the fourth interface is connected to the second hot water outlet, the fifth interface is connected to the first inlet, and the sixth interface is connected to the second outlet.

[0012] Further, the heat pump steam supply system comprises a first circulating pump and a second circulating pump, the inlet of the first circulating pump is connected to the outlet of the second circulating pump and the fifth interface respectively, and the outlet of the first circulating pump is connected to the first inlet;

[0013] The inlet of the second circulating pump is connected to the first outlet.

[0014] Further, a first electric valve is arranged in the connecting pipeline between the inlet of the first circulating pump and the outlet of the second circulating pump;

[0015] The flash tank is provided with a first liquid level sensor, and the first liquid level sensor is connected to the first electric valve and the second circulating pump respectively.

[0016] Further, the heat pump steam supply system comprises a flow sensor, the flow sensor is connected to the steam outlet and is used to detect the steam flow of the steam outlet;

[0017] The flow sensor is connected to the first three-way valve and the second three-way valve respectively.

[0018] Further, the heat pump steam supply system comprises a second electric valve, the second electric valve is connected to the fourth inlet and the external water source respectively.

[0019] Further, the water storage tank is provided with a first temperature sensor and a second liquid level sensor, the first temperature sensor is used for detecting the water temperature of the water storage tank, the second liquid level sensor is used for detecting the liquid level of the water storage tank, and the first temperature sensor and the second liquid level sensor are respectively connected with the second electric valve signal.

[0020] Further, when the hot water of the first temperature output by the heat pump is transported to the flash tank, the second liquid level sensor detects that the liquid level of the water storage tank is less than a first preset liquid level, the second electric valve is opened to supply water to the water storage tank; and / or

[0021] When the first temperature sensor detects that the water temperature of the water storage tank is greater than a first preset temperature, the second electric valve is opened to supply water to the water storage tank.

[0022] Further, the heat pump steam supply system comprises a third electric valve connected with the steam outlet.

[0023] Further, the flash tank is provided with a second temperature sensor for detecting the temperature of the flash tank, and the second temperature sensor is connected with the third electric valve signal.

[0024] The utility model relates to a heat pump steam supply system, including heat pump, flash tank, water storage tank and first three -way valve, when the heat pump steam supply system starts, first three -way valve connects heat pump and flash tank, and heat pump transports hot water to flash tank and carries out flash evaporation after heating water to first temperature, obtains steam, when the heat pump steam supply system stops, first three -way valve connects heat pump and water storage tank, and heat pump transports hot water to water storage tank, and flash tank stops flash evaporation and stops steam to steam end delivery, can reduce the delay time of heat pump steam supply system to steam to steam end delivery. Water storage tank stores hot water, when the heat pump steam supply system starts again, can transport the hot water of water storage tank to heat pump and heat, and heat pump heats water to first temperature shortens the time, can reduce the delay time of heat pump steam supply system to steam to steam end delivery, and keep steam quality. Like this, when intermittent steam, can improve the stability of heat pump steam supply system steam and guarantee the steam quality of heat pump steam supply system. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the whole structure schematic diagram of heat pump steam supply system in the utility model embodiment.

[0026] In the drawings, the same reference signs represent the same elements or elements having the same function throughout the drawings. The embodiments described below are examples in which reference signs are shown in the drawings, and the embodiments described below are intended to explain the present application, and should not be construed as limiting the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, in which the same reference signs represent the same elements or elements having the same function throughout the drawings. The embodiments described below are examples intended to explain the present application, and should not be construed as limiting the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and therefore cannot be construed as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application.

[0029] In addition, the terms "first", "second" are used only for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0030] In the use of the heat pump steam supply system, the ideal state is that the steam end uses steam, the heat pump steam supply system provides steam, and the steam end stops using steam, and the heat pump steam supply system stops supplying steam. However, in actual conditions, when the steam end starts / stops using steam, the steam supply system will delay starting / stopping supplying steam, and when the steam end uses steam intermittently due to the opening or closing of the end steam valve, the steam quality provided to the steam end changes constantly. The steam end can be a wine brewing device.

[0031] Understandably, in the related art, the heat pump steam supply system includes a heat pump, a flash tank and a water storage tank, but the hot water heated by the heat pump can only be delivered to the flash tank, and when the heat pump steam supply system receives a stop steam supply instruction, that is, when the heat pump steam supply system stops, the heat pump will still deliver hot water heated to a first temperature to the flash tank, and the flash tank will still continue to generate steam, and the heat cannot be consumed, resulting in an increase in steam supply quality. Or, when the heat pump steam supply system receives a stop steam supply instruction, that is, when the heat pump steam supply system stops, the heat pump is controlled to stop heating, and the time point at which the flash tank is controlled to stop flashing is delayed, resulting in an increase in steam quality in the steam supply pipeline. The steam quality can be the output steam temperature, steam pressure, etc. Similarly, when the heat pump steam supply system receives a start steam supply instruction, that is, when the heat pump steam supply system starts, the heat pump needs to be started to heat up in delay due to the protection of the unit, and the time for delivery to the flash tank is long, the heat provided is less than the heat consumed by the steam end, resulting in a decrease in steam quality in the steam supply pipeline.

[0032] In view of the above technical problems, the utility model provides a heat pump steam supply system, which aims to solve the problem of unstable steam supply and changing steam quality caused by delay of the heat pump steam supply system when the steam end uses steam intermittently.

[0033] As shown in the accompanying Figure 1 Fig. 1 is a schematic diagram of the overall structure of the heat pump steam supply system in the embodiment of the utility model. As shown in the accompanying Figure 1 Fig. 2 is a schematic diagram of the heat pump steam supply system in the embodiment of the utility model, and the heat pump steam supply system includes a heat pump 1, a flash tank 2, a water storage tank 3 and a first three-way valve 8.

[0034] The heat pump 1 includes a first inlet 11 and a first hot water outlet 12, and the heat pump 1 is used to heat the water entering from the first inlet 11 so that the water reaches a first temperature and is discharged from the first outlet 34.

[0035] The flash tank 2 comprises a second inlet 21, a second hot water outlet 22 and a steam outlet 23, the second inlet 21 is used for receiving the hot water discharged from the first hot water outlet 12, the second hot water outlet 22 is connected with the first inlet 11, and the steam outlet 23 is connected with a steam end. The flash tank 2 flashes the hot water heated to the first temperature by the heat pump 1 into steam of a second temperature and hot water of a third temperature, the steam of the second temperature is discharged from the steam outlet 23 and is delivered to the steam end, and the hot water of the third temperature is discharged from the second hot water outlet 22 and is returned to the heat pump to be heated to the hot water of the first temperature, and the third temperature is less than the first temperature.

[0036] The water storage tank 3 comprises a third inlet 31, a fourth inlet 32 and a first outlet 34, the third inlet 31 is used for receiving the hot water discharged from the first hot water outlet 12, the fourth inlet 32 is connected with an external water source, and the first outlet 34 is connected with the first inlet 11. The water storage tank 3 is used for storing water and replenishing the flash tank 2.

[0037] The first three-way valve 8 comprises a first interface 81, a second interface 82 and a third interface 83, the first interface 81 is connected with the first hot water outlet 12, the second interface 82 is connected with the second inlet 21, and the third interface 83 is connected with the third inlet 31. The first three-way valve 8 is used for controlling the hot water discharged from the first hot water outlet 12 to flow to the flash tank 2 or the water storage tank 3.

[0038] The first three-way valve 8 is connected with the heat pump 1, the flash tank 2 and the water storage tank 3 respectively, can control the heat pump 1 to be connected with the flash tank 2 to form a circulation or control the heat pump 1 to be connected with the water storage tank 3 to form a circulation. When the heat pump steam supply system starts, the first three-way valve 8 connects the heat pump 1 and the flash tank 2, and the heat pump 1 heats the water to the first temperature and then delivers the hot water to the flash tank 2. When the heat pump steam supply system stops, the first three-way valve 8 connects the heat pump 1 and the water storage tank 3, and the heat pump 1 delivers the hot water to the water storage tank 3, and at this time, the flash tank 2 stops flashing and / or stops delivering the steam to the steam end, so that the delay time of the heat pump steam supply system stopping delivering the steam to the steam end can be reduced. The water storage tank 3 stores the hot water, and when the heat pump steam supply system starts again, the hot water in the water storage tank 3 is delivered to the heat pump 1 for heating, so that the time of the heat pump 1 heating the water to the first temperature is shortened, the delay time of the heat pump steam supply system starting delivering the steam to the steam end can be reduced, and the steam quality can be maintained. In this way, the stability of the heat pump steam supply system supplying steam and the steam quality of the heat pump steam supply system can be ensured.

[0039] Exemplarily, the inner wall of the water storage tank 3 is provided with a heat preservation coating, the hot water input into the water storage tank 3 can be heat preserved, so that the energy consumption of the heat pump steam supply system during intermittent steam use can be saved.

[0040] Through the above embodiment, it can be known that the heat pump steam supply system can improve the stability of the heat pump steam supply system supplying steam and ensure the steam quality of the heat pump steam supply system.

[0041] In some embodiments, the water storage tank 3 comprises a second outlet 33, and the heat pump steam supply system comprises a second three-way valve 9, the second three-way valve 9 comprising a fourth interface 91, a fifth interface 92 and a sixth interface 93, the fourth interface 91 being connected to the second hot water outlet 22, the fifth interface 92 being connected to the first inlet 11, and the sixth interface 93 being connected to the second outlet 33. The second three-way valve 9 is used to control the flow of hot water in the flash tank 2 or the water storage tank 3 to the first inlet 11. The second three-way valve 9 can control the connection of the flash tank 2 to the heat pump 1, so that the hot water of the third temperature generated in the flash tank 2 is transported to the heat pump 1 for heating. The second three-way valve 9 can also control the connection of the water storage tank 3 to the heat pump 1, so that the water storage tank 3 supplies water to the heat pump 1.

[0042] When the steam end is in use, the first three-way valve 8 and the second three-way valve 9 connect the heat pump 1 and the flash tank 2 to form a circulation, and the heat pump 1 heats the hot water of the third temperature discharged from the flash tank 2 to the first temperature, and then flashes the steam of the second temperature and the hot water of the third temperature in the flash tank 2; when the steam end stops using steam, the first three-way valve 8 and the second three-way valve 9 connect the heat pump 1 and the water storage tank 3, and the heat pump 1 circulates to heat the low-temperature water in the water storage tank 3, and the heat pump 1 generates excess heat and stores it in the water storage tank; when the steam end is used again, the first three-way valve 8 and the second three-way valve 9 connect the heat pump 1 and the flash tank 2 to form a circulation, and since the system does not need to delay the start, steam can be quickly provided to prevent fluctuations in steam quality caused by system delays.

[0043] In some embodiments, the heat pump steam supply system comprises a first circulating pump 7 and a second circulating pump 62, the inlet of the first circulating pump 7 is connected to the outlet of the second circulating pump 62 and the fifth interface 92 respectively, and the outlet of the first circulating pump 7 is connected to the first inlet 11. The inlet of the second circulating pump 62 is connected to the first outlet 34. The first circulating pump 7 provides power to the water flowing out of the second hot water outlet 22 and the second outlet 33, so that the water can be transported to the heat pump 1. Similarly, the second circulating pump 62 provides power to the water flowing out of the first outlet 34, so that the water can be transported to the flash tank 2.

[0044] In some embodiments, the connecting pipe 6 between the inlet of the first circulating pump 7 and the outlet of the second circulating pump 62 is provided with a first electric valve 61. The first electric valve 61 is opened to make the water flowing out of the first outlet 34 flow to the flash tank 2. The first electric valve 61 is closed to stop the first outlet 34 from delivering water to the flash tank 2. The flash tank 2 is provided with a first liquid level sensor 25, which is respectively connected with the first electric valve 61 and the second circulating pump 62. The first liquid level sensor 25 is used to detect the liquid level in the flash tank 2. When the liquid level in the flash tank 2 is detected to be less than a second preset liquid level, the first electric valve 61 is controlled to be opened to make the water storage tank 3 supply water to the flash tank 2. When the liquid level in the flash tank 2 is less than the second preset liquid level, it indicates that the water circulating in the heat pump steam supply system is insufficient to continue to evaporate the preset flow of steam, and water needs to be supplied to make the water in the heat pump steam supply system continue to evaporate the preset flow of steam to be delivered to the steam end.

[0045] In some embodiments, the heat pump steam supply system comprises a flow sensor 42 connected with the steam outlet 23 to detect the steam flow of the steam outlet 23. The flow sensor 42 is respectively connected with the first three-way valve 8 and the second three-way valve 9. When the steam end normally uses steam, the flow of the steam outlet 23 needs to be greater than a first preset flow, the first three-way valve 8 controls the heat pump 1 to communicate with the flash tank 2, and the second three-way valve 9 controls the second hot water outlet 22 to communicate with the first circulating pump 7 to normally supply steam. When the steam is intermittently stopped, the flow of the steam outlet 23 needs to be less than or equal to the first preset flow, the first three-way valve 8 controls the first hot water outlet 12 of the heat pump 1 to communicate with the third inlet 31 of the water storage tank 3, and the second three-way valve 9 controls the second outlet 33 to communicate with the first circulating pump 7, so that when the heat pump 1 does not stop working, the excess heat of the heat pump 1 is stored in the water storage tank 3 to store energy and reduce the waste of energy consumption. When the steam end uses steam again, the heat pump 1 re-circulates with the flash tank 2, and since the system does not need to delay the start, steam can be quickly provided to prevent the steam quality from fluctuating due to system delay.

[0046] In some embodiments, the heat pump steam supply system comprises a second electric valve 51 connected with the fourth inlet 32 and an external water source. The second electric valve 51 controls the external water source to supply water to the water storage tank 3. When the second electric valve 51 is closed, the external water source stops supplying water to the water storage tank 3. When the second electric valve 51 is opened, the external water source supplies water to the water storage tank 3. The external water source can be a pure water pipeline, or the external water source can be another water storage tank 3. The fourth inlet 32 is connected with the external water source through a second external connecting pipe 5, and the second electric valve 51 is arranged in the second external connecting pipe 5.

[0047] In some embodiments, the water storage tank 3 is provided with a first temperature sensor 35 for detecting the water temperature of the water storage tank 3 and a second liquid level sensor 36 for detecting the liquid level of the water storage tank 3, and the first temperature sensor 35 and the second liquid level sensor 36 are respectively connected with the second electric valve 51. The water supply to the water storage tank 3 is controlled by the first temperature sensor 35 and the second liquid level sensor 36 to open the second electric valve 51.

[0048] In some embodiments, when the hot water of the first temperature output by the heat pump 1 is transported to the flash tank 2, the second liquid level sensor 36 detects that the liquid level of the water storage tank 3 is less than the first preset liquid level, the second electric valve 51 is controlled to be opened, otherwise it is closed. When the temperature of the water storage tank 3 is greater than the first preset temperature, the second electric valve 51 is controlled to be opened, otherwise it is closed. When the hot water of the first temperature output by the heat pump 1 is transported to the water storage tank 3, the water supply is controlled according to the temperature detected by the first temperature sensor 35. As the heat pump 1 operates, the water temperature of the water storage tank 3 continuously rises, when the water temperature of the water storage tank 3 is greater than the first preset temperature, the second electric valve 51 is controlled to be opened to supplement cold water for cooling, until the highest water level line is reached, the second electric valve 51 is controlled to be closed, and according to the intermittent time in the design, the water supply will not reach the highest water level line. The first preset liquid level and the first preset temperature can be determined according to the actual situation, and the utility model does not limit the first preset liquid level and the first preset temperature.

[0049] In some embodiments, the heat pump steam supply system comprises a third electric valve 41 connected with the steam outlet 23. The third electric valve 41 is used to control the steam output of the steam outlet 23. The steam outlet 23 is connected with the steam user end through the first external pipeline 4, and the third electric valve 41 is arranged in the first external pipeline 4.

[0050] In some embodiments, the flash tank 2 is provided with a second temperature sensor 24 for detecting the temperature of the flash tank 2, and the second temperature sensor 24 is connected with the third electric valve 41. When the temperature of the flash tank 2 is detected to be less than the second preset temperature, the opening degree of the third electric regulating valve is reduced, and when the temperature of the flash tank 2 is detected to be greater than the second preset temperature, the opening degree of the third electric regulating valve is increased, until the temperature of the flash tank 2 tends to be equal to the second preset temperature, so that the steam supply parameters meet the design requirements and the steam quality is kept unchanged.

[0051] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A heat pump steam supply system, characterized by, The heat pump steam supply system comprises: a heat pump comprising a first inlet and a first hot water outlet, the heat pump being configured to heat water entering from the first inlet to a first temperature and discharge the water from the first hot water outlet; a flash tank comprising a second inlet, a second hot water outlet and a steam outlet, the second inlet being configured to receive hot water discharged from the first hot water outlet, the second hot water outlet being connected to the first inlet, and the steam outlet being connected to a steam user; a water storage tank comprising a third inlet, a fourth inlet and a first outlet, the third inlet being configured to receive hot water discharged from the first hot water outlet, the fourth inlet being connected to an external water source, and the first outlet being connected to the first inlet; a first three-way valve comprising a first interface, a second interface and a third interface, the first interface being connected to the first hot water outlet, the second interface being connected to the second inlet, and the third interface being connected to the third inlet, the first three-way valve being configured to control the flow direction of hot water discharged from the first hot water outlet to the flash tank or the water storage tank.

2. The heat pump vapor supply system of claim 1, wherein, The water storage tank comprises a second outlet. The heat pump steam supply system comprises a second three-way valve comprising a fourth interface, a fifth interface and a sixth interface, the fourth interface being connected to the second hot water outlet, the fifth interface being connected to the first inlet, and the sixth interface being connected to the second outlet.

3. The heat pump vapor supply system of claim 2, wherein, The heat pump steam supply system comprises a first circulating pump and a second circulating pump, the inlet of the first circulating pump being connected to the outlet of the second circulating pump and the fifth interface, and the outlet of the first circulating pump being connected to the first inlet. The inlet of the second circulating pump is connected to the first outlet.

4. The heat pump vapor supply system of claim 3, wherein, A connecting pipeline between the inlet of the first circulating pump and the outlet of the second circulating pump is provided with a first electric valve. The flash tank is provided with a first liquid level sensor, the first liquid level sensor being connected to the first electric valve and the second circulating pump.

5. The heat pump vapor supply system of claim 2, wherein, The heat pump steam supply system comprises a flow sensor connected to the steam outlet for detecting the steam flow of the steam outlet. The flow sensor is connected to the first three-way valve and the second three-way valve.

6. The heat pump vapor supply system of claim 1, wherein, The heat pump steam supply system comprises a second electric valve connected to the fourth inlet and the external water source.

7. The heat pump vapor supply system of claim 6, wherein, The water storage tank is provided with a first temperature sensor for detecting the water temperature of the water storage tank and a second liquid level sensor for detecting the liquid level of the water storage tank, and the first temperature sensor and the second liquid level sensor are connected to the second electric valve.

8. The heat pump vapor supply system of claim 7, wherein, When the first temperature hot water output by the heat pump is transported to the flash tank, and the second liquid level sensor detects that the liquid level of the water storage tank is less than a first preset liquid level, the second electric valve is opened to supply water to the water storage tank; and / or When the first temperature sensor detects that the water temperature of the water storage tank is greater than a first preset temperature, the second electric valve is opened to supply water to the water storage tank.

9. The heat pump vapor supply system of claim 1, wherein, The heat pump steam supply system comprises a third electric valve connected with the steam outlet.

10. The heat pump vapor supply system of claim 9, wherein, The flash tank is provided with a second temperature sensor for detecting the temperature of the flash tank, and the second temperature sensor is connected with the third electric valve signal.

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