Water vapor energy heat pump air conditioning device soaked with evaporator

Abstract

A water vapor energy heat pump air conditioning device soaked with an evaporator comprises a water vapor energy purification platform, the evaporator and heat transfer mechanisms, the evaporator is installed in a heat exchange cavity below the bottom of the water vapor energy purification platform, and the heat transfer mechanisms are installed on the two sides of the water vapor energy purification platform; and water vapor energy heat generated by condensation phase change heat release of water vapor contained in the atmosphere in the internal space is transferred to the heat exchange solution, and then heat exchange with the evaporator is carried out in a circulating mode. Under the two different working conditions of refrigeration and heating, the evaporator can conduct conversion between the condensation effect and the evaporation effect, and therefore the purposes of heating in winter and refrigeration and air conditioning in summer are achieved. The pipe is not frozen, and the latent heat of water vapor in the air can be well absorbed.

Description

Technical Field

[0001] This invention relates to an air conditioning device, and more particularly to a water vapor energy heat pump air conditioning device with an evaporator immersed in it. Background Technology

[0002] Building energy consumption remains high, exceeding 46.7% of total societal energy consumption. Heating, in particular, indirectly accounts for over 20% of total societal energy consumption, making it a crucial element in carbon reduction. Lowering building energy consumption will play a pivotal role. Currently, heating primarily relies on energy conversion methods. Finding new energy sources to replace traditional fossil fuels will undoubtedly be a new trend in future economic development. Extensive research into new energy central air conditioning systems, especially water vapor energy heat pumps that extract low-temperature heat through energy transfer, is particularly important. This could save the country 1 trillion yuan in power infrastructure investment and reduce annual standard coal consumption by 335 million tons.

[0003] Generally, water vapor accounts for 0.003% to 4% of the total air mass, but it contains over 99% of the heat source in the air. When the relative humidity reaches 60% or higher, a temperature drop of 5°C or more is usually sufficient to obtain a significant amount of latent heat from the water vapor, which accounts for at least 80% of the total air energy. The sensible heat of the air, on the other hand, is very low and sometimes negligible. By referring to the relative humidity and absolute moisture content table, we can find the relative humidity, absolute moisture content, and corresponding dew point temperature at different temperatures, thus determining the required temperature drop to begin obtaining the latent heat of water vapor in the air. If the relative humidity is 30%, it is impossible to cool the air to -18°C at an ambient temperature of -10°C to obtain the latent heat of water vapor in the air. This is because the latent heat of water vapor can only be obtained by lowering the temperature below the dew point. At this temperature, the dew point is -22°C when the relative humidity is 30%. It is obviously not worthwhile to continue cooling the air to obtain the latent heat of water vapor. Unless a cascade heat pump technology is used, it will not have any economic value. A conventional single-stage heat pump cycle will inevitably cause an excessive pressure difference between the evaporator and the condenser, which will significantly reduce its energy efficiency ratio, thus losing its economic value. When the relative humidity increases to 60%, the latent heat of water vapor in the air only needs to be obtained by cooling the ambient temperature from -10℃ to below -15℃, since the dew point temperature is -15℃ at this point. Therefore, the latent heat of water vapor obtainable by cooling to -20℃ is more than 98 times the heat of an equal volume of air, while the sensible heat of the air is almost negligible. If the relative humidity reaches 100%, the absolute moisture content of air at -10℃ and -15℃ is 2.3 g / m³, respectively. 3 1.6g / m 3If the relative humidity is 100%, the current temperature is its dew point temperature. At this point, the latent heat of water vapor release will be 277 times the sensible heat of an equal volume of air, because the sensible heat released when the air cools by 5°C is 1.003 J / (kg·K) × 1.29 kg / m³. 3 ×5m 3 1K = 6.46935J = 0.0015kcal. This means that when relative humidity reaches 100%, a temperature drop of only 2℃ to 3℃ is sufficient to obtain sensible heat a hundred times greater than the same volume of air. By focusing on the research and development of absorbing the latent heat of water vapor in the air, we can reduce the size of the air source heat exchange tower equipment, as well as the power of the axial fan motor and the solution circulation motor. Most importantly, it can reduce the output power of the compressor. In southern my country, the relative humidity in winter generally exceeds 70%, while in most inhabited areas of the north, the relative humidity exceeds 60% for most of the time. This provides excellent air environment conditions for the application of water vapor energy heat pumps. Unlike existing ground source heat pumps and water source heat pumps, which are greatly limited by geographical conditions and related equipment costs, water vapor energy heat pumps are not plagued by defrosting problems. Air source heat pumps reach their peak heating efficiency during the initial frosting stage. When the frost layer blocks the air channels for heat exchange, the heating capacity not only decreases sharply but may even fail to operate normally. This is because without an air heat source, the evaporator becomes subcooled, increasing the compression ratio and causing the compressor to malfunction. Defrosting not only delays heating time but also consumes some of the latent heat of vaporization absorbed by the unit, requiring an equivalent amount of latent heat of condensation to defrost. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art and provide a water vapor energy heat pump air conditioning device with an evaporator that can make full use of the water vapor energy contained in the atmosphere.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] An air conditioning device using a water vapor energy heat pump with an evaporator includes a water vapor energy purification platform and an evaporator. A heat exchange solution is injected into the water vapor energy purification platform. A wind duct is located at the top of the platform, and an axial fan is installed inside the duct. An air inlet is located on the platform. A heat exchange chamber and a liquid tray are located at the bottom of the platform. The evaporator is installed inside the heat exchange chamber. One end of the heat exchange chamber is connected to the water vapor energy purification platform via a first circulation pipe, and the other end is connected to the platform via a second circulation pipe. A solution circulation pump is provided, and a heat transfer mechanism is provided inside the water vapor purification platform. The heat transfer mechanism transfers heat in the space of the water vapor purification platform to the heat exchange solution. A pre-fluid flow distribution device is provided on the side of the heat exchange chamber near the first circulation pipeline, and a post-fluid flow distribution device is provided on the side of the heat exchange chamber near the second circulation pipeline. The pre-fluid flow distribution device and the post-fluid flow distribution device are orifice plates with a number of holes. The density of the holes or the spacing of the holes are used to achieve balanced fluid flow by utilizing the size of the holes to improve the heat exchange effect.

[0007] The axial fan operates at variable speed via frequency conversion, drawing air into the internal space of the water vapor purification platform. Air then exchanges heat with the heat exchange solution within this space, causing some water vapor in the air to dissolve in the solution and release latent heat, thus raising the solution's temperature. The air, cooled by the released latent heat, is forced into the duct by the axial fan and discharged into the atmosphere. The heat exchange solution, after acquiring the latent heat of the water vapor and a small amount of sensible heat from the air, drips into the liquid tray and then flows through the first circulation pipe into the heat exchange chamber containing the evaporator. The heat exchange solution undergoes counter-current heat exchange with the refrigerant inside the evaporator through an orifice plate. After releasing latent heat to the refrigerant, the solution flows through the orifice plate to the second circulation pipe and is sprayed out again by the solution circulation pump. The heat exchange solution drips directly into the liquid tray, where atmospheric water vapor exchanges heat with the solution before returning to the liquid tray.

[0008] Preferably, the upper space of the water vapor purification platform is provided with a packing support, and the packing support is filled with heat dissipation packing for falling film heat exchange.

[0009] Preferably, the air inlet is located on the side or below the heat dissipation filler.

[0010] Preferably, the end of the second circulation pipeline away from the heat exchange chamber is connected to the upper part of the water vapor energy purification platform and extends into the water vapor energy purification platform. The heat transfer mechanism consists of a plurality of spray heads arranged on the second circulation pipeline, and the spray heads are arranged above the heat exchange solution.

[0011] Preferably, the end of the second circulation pipeline away from the heat exchange chamber is connected to the lower part of the water vapor energy purification platform. The heat transfer mechanism consists of several heat pipes, one end of which is inserted into the heat exchange solution, and the other end of which is exposed in the upper space of the water vapor energy purification platform.

[0012] Preferably, the heat pipes achieve heat circulation through a non-gravity siphon method, and their arrangement adopts a vertical staggered alternating pattern to exchange heat with the air.

[0013] Preferably, the evaporator is composed of multiple evaporators connected in parallel or in series, or a combination of series and parallel connections.

[0014] Preferably, it also includes a condenser, a main unit throttling device, and a main unit compressor. A refrigerant switching valve is provided on the connecting pipe between the evaporator and the condenser. The refrigerant switching valve is used to switch the functions of the evaporator and the condenser.

[0015] Preferably, the bottom of the water vapor purification platform is provided with a sound insulation plate, and the inner wall of the water vapor purification platform is provided with a silencer and a sound absorption device.

[0016] Preferably, the heat exchange solution is antifreeze during winter heating operation and cooling water during summer cooling operation.

[0017] The present invention has the following beneficial effects:

[0018] This invention installs an evaporator in a heat exchange chamber below the bottom of a water vapor purification platform. A heat transfer mechanism transfers the water vapor energy contained in the atmosphere within the platform to a heat exchange solution, which then circulates to exchange heat with the evaporator, achieving the desired heat exchange effect. Under both cooling and heating conditions, the evaporator can switch between condensation and evaporation, thus achieving the purpose of heating in winter and cooling / air conditioning in summer. It not only avoids freezing but also effectively absorbs the latent heat of water vapor in the air. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0022] Figure 3This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of Embodiment 4 of the present invention. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1:

[0026] like Figure 1 As shown, this embodiment includes a water vapor purification platform 15, an axial flow fan 1, a wind duct 2, a spray head 3, a falling film heat exchange packing 4, an air inlet 5, a first circulation pipe 7, a second circulation pipe 18, a first orifice plate 8, an evaporator refrigerant outlet pipe 9, an evaporator 10, an evaporator refrigerant inlet pipe 11, a second orifice plate 12, and a solution circulation pump 13.

[0027] The air duct 2 is located at the top of the water vapor energy purification platform 15. The bottom of the water vapor energy purification platform 15 is formed by a liquid support plate 6. The axial flow fan 1 is installed inside the air duct 2. The heat exchange solution 16 is injected into the water vapor energy purification platform 15. A heat exchange chamber 17 is provided at the bottom of the water vapor energy purification platform 15. The evaporator 10 is installed inside the heat exchange chamber 17. One end of the heat exchange chamber 17 is connected to the water vapor energy purification platform through a first circulation pipe 7, and the other end of the heat exchange chamber 17 is connected to the water vapor energy purification platform through a second circulation pipe 18.

[0028] In this embodiment, the end of the second circulation pipeline 18 away from the heat exchange chamber is connected to the upper part of the water vapor energy purification platform 15. The second circulation pipeline 18 extending into the water vapor energy purification platform 15 is provided with multiple spray heads 3, and a solution circulation pump 13 is provided on the second circulation pipeline.

[0029] In this embodiment, the upper space of the water vapor purification platform is provided with a packing support, and the packing support is filled with heat dissipation packing 4 for falling film heat exchange.

[0030] In this embodiment, the side wall of the water vapor purification platform 15 is provided with an air inlet 5.

[0031] In this embodiment, the first orifice plate 8 and the second orifice plate 12 employ varying degrees of spacing between the baffles or the holes to achieve balanced fluid flow and improve heat exchange efficiency. This prevents some heat exchange solution 16 from being pumped away by the solution circulation pump 13 before exchanging heat with the refrigerant for a short period. The first orifice plate 8 is essential for optimizing heat exchange. The second orifice plate 12 serves a similar function, but the first orifice plate 8 is considered more important.

[0032] The axial fan 1 operates at variable speed through frequency conversion control, which can draw air from the air inlet 5 on the water vapor purification platform 15 into the internal space of the water vapor purification platform 15, and exchange heat with the spray liquid in the internal space or with the liquid film falling on the heat dissipation packing 4, so that some water vapor in the air dissolves in the heat exchange solution and releases latent heat to increase the temperature of the heat exchange solution. After releasing the latent heat of water vapor to the falling film liquid, the cooled air is forced into the air duct 2 by the axial fan 1 and discharged into the atmosphere. The heat exchange solution 16, after acquiring the latent heat of water vapor in the air and a small portion of the sensible heat of the air, drips into the liquid tray 6 at the bottom of the water vapor purification platform 15, and then flows into the heat exchange chamber 17 soaked with the evaporator 10 through the first circulation pipe 7. After passing through the first perforated plate 8, the heat exchange solution 16 exchanges heat with the refrigerant inside the evaporator 10 in a counter-current manner. After releasing the latent heat to the refrigerant, the heat exchange solution 16 flows out through the second perforated plate 12 to the second circulation pipe 18, and is sprayed out again by the solution circulation pump 13 and the spray head 3. The heat exchange solution 16 drips directly into the liquid tray 6, or forms a liquid film on the heat dissipation packing 4 on the packing support. During this process, the water vapor in the atmosphere will exchange heat with the heat exchange solution 16 and the liquid film on the heat dissipation packing 4, and then the heat exchange solution 16 returns to the liquid tray 6.

[0033] The above process enables the heat exchange solution to circulate 16 times continuously, constantly exchanging heat with the air, absorbing the latent heat of water vapor in the air and transferring it to the refrigerant in the evaporator 10. After acquiring the latent heat, the refrigerant is pressed into the condenser of the heat pump unit by the main compressor through the evaporator refrigerant outlet pipe 9 to release the latent heat to the heating medium water. After releasing the latent heat and condensing, the refrigerant becomes a liquid fluid, which then enters the evaporator 10 again through the evaporator refrigerant inlet pipe 11 through the main unit throttling device to acquire the latent heat of water vapor in the heat exchange solution. In this way, the heat exchange process of three series cycles is completed.

[0034] In winter heating mode, heat exchange solution 16 is antifreeze; in summer cooling mode, heat exchange solution 16 is cooling water.

[0035] In addition, a refrigerant switching valve is installed on the connecting pipe between the evaporator and the condenser, which is used to switch the functions of the evaporator and the condenser.

[0036] Example 2:

[0037] like Figure 2 As shown, in this embodiment, the air inlet 5 is located below the falling film packing 4, instead of using a side air inlet as in Embodiment 1. It is entirely a counter-current airflow method for heat exchange with the falling film liquid. Of course, this invention is not limited to the falling film heat exchange method, and also uses a spray counter-current heat exchange method as in Embodiment 1.

[0038] Example 3:

[0039] like Figure 3 As shown, in this embodiment, the end of the second circulation pipeline 18 furthest from the heat exchange chamber 17 is connected to the lower part of the water vapor energy purification platform. The heat transfer mechanism consists of several superconducting heat pipes 14, one end of which is inserted into the heat exchange solution, and the other end of which is exposed in the upper space of the water vapor energy purification platform 15. The insertion of the superconducting heat pipes 14 into the solution in the liquid tray enables rapid transfer of air heat energy into the heat exchange solution 16.

[0040] In this embodiment, the superconducting heat pipes 14 are staggered in the liquid tray 6. The condensation section of the superconducting heat pipe 14 is inserted into the heat exchange solution 16 in the liquid tray 6 and supported by a fixed bracket. Air is introduced into the water vapor purification platform 15 from the air inlet 5 by the axial flow fan 1 to exchange heat with the superconducting heat pipes. After releasing the latent heat and sensible heat of the water vapor, the air is discharged into the atmosphere through the air duct 2 by the axial flow fan 1. The evaporation section of the superconducting heat pipe 14 is exposed in the internal space of the water vapor purification platform 15. After absorbing heat from the air, the liquid superconducting medium in the evaporation section is evaporated. The evaporated superconducting medium is condensed by the low-temperature heat exchange solution 16 outside the condensation section. The superconducting (phase change medium) medium releases latent heat to the heat exchange solution 16 and becomes liquid superconducting medium again. Under the action of the siphon material inside the superconducting heat pipe 14, it is drawn into the evaporation section to absorb heat from the air again and evaporate. In this way, the cycle of evaporation, condensation, re-evaporation, and re-condensation is repeated to enable the superconducting heat pipe 14 to quickly transfer heat from the air to the heat exchange solution.

[0041] The heat exchange solution 16 is drawn into the heat exchange chamber 17 equipped with the evaporator by the solution circulation pump 13. It passes through the first orifice plate 8 to exchange heat with the refrigerant in the evaporator 10, then flows through the second orifice plate 12, and then into the liquid tray 6 to exchange heat with the superconducting medium in the condensing section of the superconducting heat pipe 14. The refrigerant in the evaporator 10 absorbs the latent heat of the heat exchange solution 16 and then evaporates. The evaporated refrigerant flows from the evaporator refrigerant outlet pipe 9 into the condenser of the heat pump unit to release its latent heat. After releasing its latent heat, it is condensed into liquid refrigerant and flows through the main unit throttling device and enters the evaporator 10 again through the evaporator refrigerant inlet pipe 11 to complete the refrigerant circulation process.

[0042] This embodiment has the ability to bring the heat exchange solution 16 close to the ambient temperature because the superconducting heat pipe has a temperature difference response sensitivity of 0.1℃, thereby increasing the temperature and pressure of the evaporator 10, reducing the compression ratio between the evaporator and the condenser, and improving the system's energy efficiency ratio. This is equivalent to a cascade heat pump, except that the primary thermodynamic cycle does not involve a compressor.

[0043] Comparing existing mature air-source cascade heat pumps with traditional air-source heat pump units, they each have their own advantages. First, the investment cost of air-source cascade heat pumps is definitely higher than that of traditional air-source heat pumps. However, traditional air-source heat pumps cannot cope with extremely low temperature environments, while cascade heat pumps are different. When the ambient temperature is zero degrees Celsius, the energy efficiency ratio of cascade heat pumps can still reach 5.0, and its system energy efficiency ratio is still 3.11. Under the same operating conditions, the energy efficiency ratio of traditional air-source heat pumps is only 2.5. Its energy efficiency ratio is 24.4% higher than that of traditional heat pumps, and its application temperature range is significantly expanded. Traditional air-source heat pumps generally cannot operate normally when the ambient temperature is below -10°C, unless the outlet water temperature is lowered, which makes it difficult to meet the heating temperature requirements. Air-source cascade heat pumps generally have a 24.4% higher energy efficiency ratio than traditional air-source heat pumps. However, this energy-saving advantage disappears when the ambient temperature exceeds 10℃, and traditional air-source heat pumps are slightly stronger. This is the perplexing aspect of cascade heat pumps. Therefore, using superconducting heat pipes to replace the low-temperature stage cycle of cascade heat pumps not only reduces costs but also eliminates this problem. As a low-temperature stage thermodynamic cycle, superconducting heat pipes not only have the advantages of cascade heat pumps but also resolve this issue. Thus, the heat exchange chamber 17 at the bottom of the water vapor purification platform 15 is equivalent to the intermediate heat exchanger of the cascade heat pump.

[0044] Example 4:

[0045] like Figure 4 As shown, this embodiment is based on Embodiments 1, 2, and 3, employing a combined structure of three water vapor purification platforms 15 connected in series to exchange heat with air. However, it is not limited to the series connection of three water vapor purification platforms 15. The evaporators 10 within the bottom heat exchange chamber 17 of each water vapor purification platform 15 can share the same refrigerant inlet and outlet pipes, forming multiple evaporators 10 connected in parallel to achieve capacity expansion. The main solution circulation pump 13 then sprays or drains water onto the upper part of the water vapor purification platforms 15 to create a falling film.

[0046] Although other heat pump main units such as the main compressor, main throttling device, and condenser are not shown in the figure, it does not mean that they do not exist. The solution concentration device is not shown or marked, but it does not mean that it does not exist. The main compressor is not limited to being placed in the machine room. It can also be integrated with the water vapor energy purification platform 15 or set up nearby.

[0047] The motor speed of the axial fan 1 is adjusted using frequency conversion technology. Its control information is collected by an air humidity detector and a temperature probe. The data is then digitally processed by the chip, and the built-in program of the chip calculates the optimal scheme to regulate the frequency of the motor speed and outputs its signal, thereby realizing the regulation of the motor speed and achieving the purpose of energy saving.

[0048] Those skilled in the art can make various modifications and variations to this invention. If such modifications and variations are within the scope of the claims of this invention and their equivalents, then such modifications and variations are also within the protection scope of this invention.

[0049] The contents not described in detail in the specification are prior art known to those skilled in the art.

Claims

1. A water vapor energy heat pump air conditioning device with an evaporator, comprising a water vapor energy purification platform and an evaporator, characterized in that: A heat exchange solution is injected into the water vapor energy purification platform. A wind duct is located at the top of the platform, and an axial fan is installed inside the duct. The platform has an air inlet, and a heat exchange chamber and a liquid tray are located at the bottom. The evaporator is installed inside the heat exchange chamber. One end of the heat exchange chamber is connected to the platform via a first circulation pipe, and the other end is connected via a second circulation pipe. A solution circulation pump is installed on the second circulation pipe. A heat transfer mechanism is provided to transfer heat from the water vapor purification platform space to the heat exchange solution. A pre-fluid flow distribution device is provided on the side of the heat exchange chamber near the first circulation pipeline, and a post-fluid flow distribution device is provided on the side of the heat exchange chamber near the second circulation pipeline. The pre-fluid flow distribution device and the post-fluid flow distribution device are orifice plates with a number of holes. The density of the holes or the spacing of the holes are used to achieve balanced fluid flow and improve the heat exchange effect. The axial fan operates at variable speed via frequency conversion, drawing air into the internal space of the water vapor purification platform. Air then exchanges heat with the heat exchange solution within this space, causing some water vapor in the air to dissolve in the solution and release latent heat, thus raising the solution's temperature. The air, cooled by the released latent heat, is forced into the duct by the axial fan and discharged into the atmosphere. The heat exchange solution, after acquiring the latent heat of the water vapor and a small amount of sensible heat from the air, drips into the liquid tray and then flows through the first circulation pipe into the heat exchange chamber containing the evaporator. The heat exchange solution undergoes counter-current heat exchange with the refrigerant inside the evaporator through an orifice plate. After releasing latent heat to the refrigerant, the solution flows through the orifice plate to the second circulation pipe and is sprayed out again by the solution circulation pump. The heat exchange solution drips directly into the liquid tray, where atmospheric water vapor exchanges heat with the solution before returning to the liquid tray.

2. The water vapor energy heat pump air conditioning device with an evaporator as described in claim 1, characterized in that: The upper space of the water vapor energy purification platform is equipped with a packing support, and the packing support is filled with heat dissipation packing for falling film heat exchange.

3. The water vapor energy heat pump air conditioning device with an evaporator as described in claim 2, characterized in that: The air inlet is located on the side or below the heat dissipation filler.

4. The water vapor energy heat pump air conditioning device with an evaporator as described in claim 3, characterized in that: The end of the second circulation pipeline away from the heat exchange chamber is connected to the upper part of the water vapor energy purification platform and extends into the water vapor energy purification platform. The heat transfer mechanism consists of several spray heads arranged on the second circulation pipeline, with the spray heads positioned above the heat exchange solution.

5. The water vapor energy heat pump air conditioning device with an evaporator as described in claim 1, characterized in that: The end of the second circulation pipeline away from the heat exchange chamber is connected to the lower part of the water vapor energy purification platform. The heat transfer mechanism consists of several heat pipes, one end of which is inserted into the heat exchange solution, and the other end of which is exposed in the upper space of the water vapor energy purification platform.

6. The water vapor energy heat pump air conditioning device with an evaporator as described in claim 5, characterized in that: The heat pipes achieve heat circulation through a non-gravity siphon method, and their arrangement adopts a vertical staggered alternating pattern to exchange heat with the air.

7. The water vapor energy heat pump air conditioning device with an evaporator as described in any one of claims 1-6, characterized in that: The evaporator is composed of multiple evaporators connected in parallel or in series, or a combination of series and parallel connections.

8. The water vapor energy heat pump air conditioning device with an evaporator as described in any one of claims 1-6, characterized in that: It also includes a condenser, a main unit throttling device, and a main unit compressor. A refrigerant switching valve is provided on the connecting pipe between the evaporator and the condenser. The refrigerant switching valve is used to switch the functions of the evaporator and the condenser.

9. The water vapor energy heat pump air conditioning device with an evaporator as described in any one of claims 1-6, characterized in that: The bottom of the water vapor energy purification platform is equipped with a sound insulation board, and the inner wall of the water vapor energy purification platform is equipped with a silencer and a sound absorption device.

10. The water vapor energy heat pump air conditioning device with an evaporator as described in any one of claims 1-6, characterized in that: In winter heating mode, the heat exchange solution is antifreeze, and in summer cooling mode, the heat exchange solution is cooling water.

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