Self-sufficient water source heat pump and using method

Abstract

The invention relates to the technical field of water source heat pumps, in particular to a self-sufficient water source heat pump and a using method.The circulating assembly comprises a cold water tank, the cold water tank is fixedly connected to the inner wall of the bottom of a protective shell, the interior of the cold water tank fixedly communicates with a conveying pipe, and the top of the cold water tank fixedly communicates with the conveying pipe; the side surface of the conveying pipe fixedly communicates with a water distribution pipe, one end of the water distribution pipe fixedly communicates with a connecting pipe, the other end of the connecting pipe is fixedly connected with a partition plate, the top of the partition plate is fixedly connected to the inner wall of the top of the protective shell, and the other side of the partition plate is fixedly connected with a hot water tank. According to the self-sufficient water source heat pump and the using method thereof, the problem that a traditional water source heat pump cannot be used when no large-area clean water source exists or the water source cannot continuously provide heat energy is effectively solved, and meanwhile the problem that a medium-grade solar water heater cannot heat water to meet the requirement of a user, so that resources are wasted is solved; a large amount of hot water use cost is saved for users.

Description

Technical Field

[0001] The present invention relates to the technical field of water source heat pumps, in particular to a self-sufficient water source heat pump and a use method thereof. Background Art

[0002] The water source heat pump includes a heat pump heating module, a dual-effect solar heat absorption module, an intermediate water source module and intelligent control components. The core components of the heat pump heating module are composed of a compressor, a water-cooled condenser, a heat regenerator, a throttle valve, a water source evaporator, etc.; the dual-effect solar heat absorption module is composed of a solar collector, a heat exchange copper tube, heat collection and heat exchange fins, an exhaust fan, an exhaust main pipe, etc.; the intermediate water source module is composed of an intermediate water tank, a water feed pump, a reverse valve, a water supply float valve, etc. Azeotropic refrigerants are made by mixing two or more refrigerants in a specific ratio. During the phase change process, the gas and liquid phases remain consistent and have a fixed boiling point. Their properties are similar to those of a single substance, and the evaporation temperature is constant. Non-azeotropic refrigerants are mixed components without a fixed boiling point. During the phase change, the gas and liquid phases have different compositions, and there is a temperature glide. The evaporation or condensation process is accompanied by temperature changes, which is a non-isothermal phase change. The dual-effect solar heat absorption module and the heat pump heating module have poor linkage. For example, when there is sufficient sunshine, the solar heat collection temperature reaches 60°C, but the optimal operating temperature of the heat pump evaporator is 15~25°C. The high-temperature water source can easily cause the heat pump condensing pressure to be too high, and the energy efficiency ratio drops by more than 30%. When it is cloudy or at night when solar heat is insufficient, the forced ventilation heat exchange efficiency is limited, and the water temperature in the intermediate water tank may drop below 5°C. The heat pump enters the low-temperature protection mode and shuts down. The temperature range of solar heat collection and heat pump heating is not effectively connected. At the same time, when used for a long time, calcium carbonate scale forms on the surface of the heat exchanger inside the water tank, resulting in reduced heat exchange efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a self-sufficient water source heat pump and a method of use, so as to solve the problem of poor linkage between the dual-effect solar heat absorption module and the heat pump heating module proposed in the above background technology. For example, when there is sufficient sunshine, the solar heat collection temperature reaches 60°C, but the optimal operating temperature of the heat pump evaporator is 15~25°C. The high-temperature water source can easily cause the heat pump condensation pressure to be too high, and the energy efficiency ratio drops by more than 30%. When there is insufficient solar heat on cloudy days or at night, the forced ventilation heat exchange efficiency is limited, and the water temperature in the intermediate water tank may drop below 5°C. The heat pump enters the low-temperature protection mode and shuts down. The temperature range of solar heat collection and heat pump heating is not effectively connected. At the same time, when used for a long time, calcium carbonate scale forms on the surface of the heat exchanger inside the water tank, resulting in reduced heat exchange efficiency. In order to achieve the above purpose, the present invention provides the following technical solutions: a self-sufficient water source heat pump and a method of use, comprising a protective shell, wherein a circulation component is provided inside the protective shell; The circulation component includes a cold water tank, which is fixedly connected to the bottom inner wall of the protective shell, the interior of the cold water tank is fixedly connected to a delivery pipe, the top of the cold water tank is fixedly connected to a delivery pipe, the side surface of the delivery pipe is fixedly connected to a water distribution pipe, one end of the water distribution pipe is fixedly connected to a connecting pipe, the other end of the connecting pipe is fixedly connected to a partition plate, the top of the partition plate is fixedly connected to the top inner wall of the protective shell, the other side of the partition plate is fixedly connected to a hot water tank, the top of the hot water tank is fixedly connected to a water inlet hose, the other end of the water inlet hose is fixedly connected to a water distributor, and the bottom end of the water distributor is fixedly connected to several flow pipes.

[0004] Further preferably, the water flow pipes are symmetrically distributed in the water flow pipes, the bottom end of one of the water flow pipes is fixedly connected to a water inlet pipe, and the other end of the water inlet pipe is fixedly connected to a water inlet 1. The water in the hot water tank is heated and stored. When there is too much hot water in the hot water tank, it is circulated through the circulation pipe to maintain its heat. When using water, the cold water valve and the hot water valve are opened respectively, and the water in the cold water tank and the hot water tank is heated and stored.

[0005] Further preferably, the other end of the water inlet pipe is fixedly connected to water inlet 2, and the water inlet 2 is symmetrically distributed with water inlet 1. The bottom end of the water flow pipe is fixedly connected to the heat exchanger, and water enters the heat exchanger through the delivery pipe and the water inlet hose respectively, and at the same time flows out of the water outlet pipe for use by users. A spiral plate heat exchanger partition is set in the middle water tank, and the upper layer directly supplies domestic hot water to the user through a three-way valve, and the lower layer is connected to the heat pump evaporator to avoid high-temperature water source impacting the heat pump system.

[0006] Further preferably, a side surface of the heat exchanger is fixedly connected to a water outlet pipe, a water outlet end of the water outlet pipe is fixedly connected to a cold water valve, and a water outlet end of the water outlet pipe is fixedly connected to a hot water valve.

[0007] Further preferably, the cold water valve and the hot water valve are symmetrically distributed, a circulation pipe is fixedly connected to the interior of the protective shell, and the circulation pipe is connected to the hot water tank.

[0008] Further preferably, a heat dissipation hole is opened on one side of the protective shell, a protective net is fixedly connected to the front of the protective shell, and a fixing frame is fixedly connected to the inside of the protective shell, which effectively solves the problem that the traditional water source heat pump cannot be used when there is no large-scale clean water source or the water source cannot continuously provide heat energy. At the same time, it solves the problem that medium-grade solar water heaters cannot heat the water temperature to meet user requirements, causing resource waste, saving users a lot of hot water usage costs.

[0009] Further preferably, a rotating fan is fixedly connected to one side of the fixing frame, a through hole is opened on the front side of the protective shell, and the rotating fan is located inside the through hole and is adapted to the through hole.

[0010] Further preferably, a protective door is movably connected to one side of the protective shell, and two supporting legs are fixedly connected to the bottom of the protective shell, and the two supporting legs are symmetrically distributed at the bottom of the protective shell.

[0011] A method for using a self-sufficient water source heat pump comprises the following steps: S1: The internal water source heat pump is fixed and protected by supporting legs and a protective shell. At the same time, the internal part of the protective shell is cooled by rotating the fan and the heat dissipation holes. During the heat dissipation process, water is introduced through water inlet 1 and water inlet 2. After the water enters, the other end of the water inlet pipe is fixedly connected to water inlet 2, so that the water from water inlet 1 and water inlet 2 enters the water inlet pipe, and then enters the cold water tank and hot water tank respectively through the water distributor. The water in the hot water tank is heated and stored; S2: When there is too much hot water in the hot water tank, it circulates through the circulation pipe to maintain its heat. When using water, the cold water valve and the hot water valve are opened respectively. The water in the cold water tank and the hot water tank enters the heat exchanger through the delivery pipe and the water inlet hose respectively, and at the same time flows out of the water outlet pipe for the user to use; S3: A spiral plate heat exchanger partition is set in the middle water tank. The upper layer directly supplies domestic hot water to users through a three-way valve, and the lower layer is connected to the heat pump evaporator to avoid high-temperature water source impacting the heat pump system. This effectively solves the problem that traditional water source heat pumps cannot be used when there is no large-scale clean water source or the water source cannot continuously provide heat energy. At the same time, it solves the problem of resource waste caused by the inability of medium-grade solar water heaters to heat the water to the user's required temperature, saving users a lot of hot water usage costs.

[0012] In the self-contained water-source heat pump system of the present invention, the heat exchanger is preferably used in conjunction with a non-azeotropic refrigerant mixture. During the condensation or evaporation process within the heat exchanger, the temperature of the non-azeotropic refrigerant mixture changes continuously with the phase change process, better matching the water-side temperature curve and significantly reducing the temperature difference between the two ends of the heat exchanger, thereby improving overall heat exchange efficiency. By using a non-azeotropic refrigerant mixture, the system achieves more efficient heat transfer between the cold water tank and the hot water tank, effectively increasing the hot water outlet temperature or the cold water outlet temperature, and enhancing the adaptability and energy efficiency of the heat pump under conditions with large temperature differences.

[0013] It uses R1234yf, an environmentally friendly alternative refrigerant to R134a, and adds a certain proportion of R1234ze(E). Both are new-generation low-GWP environmentally friendly refrigerants with extremely low global warming potential (GWP), no damage to the ozone layer, and are in line with the current international trend of green environmental protection and sustainable development. Through the different boiling point characteristics of the two refrigerants, the condensing pressure is effectively reduced in the medium and low temperature working areas, and the temperature glide brought about by their non-azeotropic mixing characteristics is utilized to make the temperature changes in the heat exchanger better adapt to the large temperature rise heat exchange requirements between the cold water tank and the hot water tank, thereby further improving the heat exchange efficiency and overall energy efficiency of the system.

[0014] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the water in the hot water tank is heated and stored. When there is too much hot water in the hot water tank, it is circulated through the circulation pipe to maintain its heat. When using water, the cold water valve and the hot water valve are opened respectively. The water in the cold water tank and the hot water tank enters the heat exchanger through the delivery pipe and the water inlet hose respectively, and at the same time, the water is discharged from the outlet pipe for use by the user. A spiral plate heat exchanger partition is set in the middle water tank. The upper layer directly supplies domestic hot water to the user through a three-way valve, and the lower layer is connected to the heat pump evaporator to avoid high-temperature water source impacting the heat pump system.

[0015] The present invention effectively solves the problem that traditional water source heat pumps cannot be used when there is no large-scale clean water source or the water source cannot continuously provide heat energy. At the same time, it solves the problem that medium-grade solar water heaters cannot heat the water temperature to meet user requirements, causing resource waste, saving users a lot of hot water usage costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional main structure of the present invention; Figure 2 This is a schematic diagram of the overall explosion structure of the present invention; Figure 3 This is a schematic diagram of the structure of the circulation component of the present invention; Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention; Figure 5 For the present invention Figure 4 A in the middle is an enlarged structural diagram; Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B in the middle.

[0017] In the figure: 1. Protective shell; 2. Heat dissipation holes; 3. Protective net; 4. Fixed frame; 5. Rotating fan; 6. Through hole; 7. Protective door; 8. Partition plate; 9. Circulation component; 10. Support leg; 901. Cold water tank; 902. Delivery pipe; 903. Water distribution pipe; 904. Connecting pipe; 905. Hot water tank; 906. Water inlet hose; 907. Water distributor; 908. Water flow pipe; 909. Water inlet pipe; 910. Heat exchanger; 911. Water outlet pipe; 912. Cold water valve; 913. Hot water valve; 914. Circulation pipe; 915. Water inlet 1; 916. Water inlet 2. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] See also Figures 1-6 , the present invention provides a technical solution: a self-sufficient water source heat pump, comprising a protective shell 1, wherein a circulation component 9 is provided inside the protective shell 1; The circulation component 9 includes a cold water tank 901, which is fixedly connected to the bottom inner wall of the protective shell 1. The interior of the cold water tank 901 is fixedly connected to a delivery pipe 902, and the top of the cold water tank 901 is fixedly connected to the delivery pipe 902. The side surface of the delivery pipe 902 is fixedly connected to a water distribution pipe 903. One end of the water distribution pipe 903 is fixedly connected to a connecting pipe 904, and the other end of the connecting pipe 904 is fixedly connected to a partition plate 8. The top of the partition plate 8 is fixedly connected to the top inner wall of the protective shell 1, and the other side of the partition plate 8 is fixedly connected to a hot water tank 905. The top of the hot water tank 905 is fixedly connected to a water inlet hose 906, and the other end of the water inlet hose 906 is fixedly connected to a water distributor 907. The bottom end of the water distributor 907 is fixedly connected to several water pipes 908, and the water pipes 908 are symmetrically distributed in the water pipes 908. The bottom end of one of the water pipes 908 is fixedly connected to a water inlet pipe 909.

[0020] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, the other end of the water inlet pipe 909 is fixedly connected to water inlet 1 915, and the other end of the water inlet pipe 909 is fixedly connected to water inlet 2 916, and water inlet 2 916 and water inlet 1 915 are symmetrically distributed. The bottom end of the flow pipe 908 is fixedly connected to the heat exchanger 910, and the side surface of the heat exchanger 910 is fixedly connected to the outlet pipe 911, and the outlet end of the outlet pipe 911 is fixedly connected to the cold water valve 912, and the outlet end of the outlet pipe 911 is fixedly connected to the hot water valve 913, and the cold water valve 912 and the hot water valve 913 are symmetrically distributed. The interior of the protective shell 1 is fixedly connected to a circulation pipe 914, and the circulation pipe 914 is connected to the hot water tank 905.

[0021] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, protective housing 1 has heat dissipation holes 2 on one side, a protective net 3 fixedly connected to the front of protective housing 1, a fixing bracket 4 fixedly connected to the interior of protective housing 1, and a rotating fan 5 fixedly connected to one side of fixing bracket 4. A through-hole 6 is formed on the front of protective housing 1, and rotating fan 5 is located inside and adapted to through-hole 6. A protective door 7 is movably connected to one side of protective housing 1, and two support legs 10 are fixedly connected to the bottom of protective housing 1, and the two support legs 10 are symmetrically distributed on the bottom of protective housing 1. A method for using a self-sufficient water source heat pump comprises the following steps: S1: The internal water source heat pump is fixed and protected by the support legs 10 and the protective housing 1. At the same time, the interior of the protective housing 1 is cooled by rotating the fan 5 and the heat dissipation holes 2. During the heat dissipation process, water enters through the water inlet 1 915 and the water inlet 2 916. After the water enters, the other end of the water inlet pipe 909 is fixedly connected to the water inlet 2 916, so that the water from the water inlet 1 915 and the water inlet 2 916 enters the water inlet pipe 909, and then passes through the water distributor 907 to enter the cold water tank 901 and the hot water tank 905 respectively. The water in the hot water tank 905 is heated and stored; S2: When there is too much hot water in the hot water tank 905, it circulates through the circulation pipe 914 to maintain its heat. When the water is used, the cold water valve 912 and the hot water valve 913 are opened respectively. The water in the cold water tank 901 and the hot water tank 905 enter the heat exchanger 910 through the delivery pipe 902 and the water inlet hose 906 respectively, and then flows out of the water outlet pipe 911 for the user to use. S3: A spiral plate heat exchanger 910 partition is set in the middle water tank. The upper layer directly supplies domestic hot water to users through a three-way valve, and the lower layer is connected to the heat pump evaporator to avoid high-temperature water source impacting the heat pump system. This effectively solves the problem that traditional water source heat pumps cannot be used when there is no large-scale clean water source or the water source cannot continuously provide heat energy. At the same time, it solves the problem of resource waste caused by the inability of medium-grade solar water heaters to heat the water to the temperature required by users, saving users a lot of hot water usage costs.

[0022] The use method and advantages of the present invention: The self-sufficient water source heat pump and its use method, when in use, the working process is as follows: like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, when using the self-sufficient water source heat pump, first fix and protect the internal water source heat pump through the support legs 10 and the protective shell 1, and dissipate heat to the inside of the protective shell 1 by rotating the fan 5 and the heat dissipation hole 2. During the heat dissipation process, water is introduced through the water inlet 1 915 and the water inlet 2 916. After the water comes in, the other end of the water inlet pipe 909 is fixedly connected with the water inlet 2 916, so that the water from the water inlet 1 915 and the water inlet 2 916 enters the water inlet pipe 909, and then enters the cold water tank 901 and the hot water tank 905 respectively through the water distributor 907. The water in the hot water tank 905 is heated and stored. When there is too much hot water in the hot water tank 905, it is circulated through the circulation pipe 914 to maintain its heat. When using water, open the cold water valve 912 and the hot water valve 913 respectively, and the water in the cold water tank 901 and the hot water tank 905 enter the heat exchanger 910 through the delivery pipe 902 and the water inlet hose 906 respectively, and at the same time discharge the water from the outlet pipe 911 for the user to use. A spiral plate heat exchanger 910 partition is set in the middle water tank. The upper layer directly supplies domestic hot water to the user through a three-way valve, and the lower layer is connected to the heat pump evaporator to avoid high-temperature water source impacting the heat pump system. This effectively solves the problem that traditional water source heat pumps cannot be used when there is no large-scale clean water source or the water source cannot continuously provide heat energy. At the same time, it solves the problem that medium-grade solar water heaters cannot heat the water temperature to meet user requirements, causing resource waste, saving users a lot of hot water usage costs.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-sufficient water source heat pump, characterized in that: It comprises a protective shell (1), wherein a circulation component (9) is provided inside the protective shell (1); The circulation component (9) comprises a cold water tank (901), the cold water tank (901) being fixedly connected to the bottom inner wall of the protective shell (1), the interior of the cold water tank (901) being fixedly connected to a delivery pipe (902), the top of the cold water tank (901) being fixedly connected to the delivery pipe (902), the side surface of the delivery pipe (902) being fixedly connected to a water distribution pipe (903), one end of the water distribution pipe (903) being fixedly connected to a connecting pipe (904), the other end of the connecting pipe (904) being fixedly connected to a partition plate (8), the top of the partition plate (8) being fixedly connected to the top inner wall of the protective shell (1), the other side of the partition plate (8) being fixedly connected to a hot water tank (905), the top of the hot water tank (905) being fixedly connected to a water inlet hose (906), the other end of the water inlet hose (906) being fixedly connected to a water distributor (907), and the bottom end of the water distributor (907) being fixedly connected to a plurality of water flow pipes (908).

2. A self-sufficient water source heat pump according to claim 1, characterized in that: The water flow pipes (908) are symmetrically distributed in the water flow pipe (908), wherein the bottom end of one of the water flow pipes (908) is fixedly connected to a water inlet pipe (909), and the other end of the water inlet pipe (909) is fixedly connected to a water inlet port 1 (915).

3. A self-sufficient water source heat pump according to claim 2, characterized in that: The other end of the water inlet pipe (909) is fixedly connected to a second water inlet (916), and the second water inlet (916) and the first water inlet (915) are symmetrically distributed. The bottom end of the water flow pipe (908) is fixedly connected to a heat exchanger (910).

4. A self-sufficient water source heat pump according to claim 3, characterized in that: A water outlet pipe (911) is fixedly connected to the side surface of the heat exchanger (910), a water outlet end of the water outlet pipe (911) is fixedly connected to a cold water valve (912), and a water outlet end of the water outlet pipe (911) is fixedly connected to a hot water valve (913).

5. A self-sufficient water source heat pump according to claim 4, characterized in that: The cold water valve (912) and the hot water valve (913) are symmetrically distributed, and a circulation pipe (914) is fixedly connected to the interior of the protective shell (1), and the circulation pipe (914) is connected to the hot water tank (905).

6. The self-sufficient water source heat pump according to claim 5, characterized in that: A heat dissipation hole (2) is provided on one side of the protective shell (1), a protective net (3) is fixedly connected to the front of the protective shell (1), and a fixing frame (4) is fixedly connected to the interior of the protective shell (1).

7. The self-sufficient water source heat pump according to claim 5, characterized in that: A rotating fan (5) is fixedly connected to one side of the fixing frame (4), a through hole (6) is provided on the front of the protective housing (1), and the rotating fan (5) is located inside the through hole (6) and is adapted to fit the through hole (6).

8. The self-sufficient water source heat pump according to claim 5, characterized in that: A protective door (7) is movably connected to one side of the protective shell (1), and two supporting legs (10) are fixedly connected to the bottom of the protective shell (1), and the two supporting legs (10) are symmetrically distributed at the bottom of the protective shell (1).

9. A method for using a self-sufficient water source heat pump, characterized in that: The following steps are involved: S1: The internal water source heat pump is fixed and protected by the support legs (10) and the protective shell (1), and the interior of the protective shell (1) is cooled by rotating the fan (5) and the heat dissipation holes (2). During the heat dissipation process, water is introduced through the first water inlet (915) and the second water inlet (916). After the water enters, the other end of the water inlet pipe (909) is fixedly connected to the second water inlet (916), so that the water from the first water inlet (915) and the second water inlet (916) enters the water inlet pipe (909), and then enters the cold water tank (901) and the hot water tank (905) respectively through the water distributor (907). The water in the hot water tank (905) is heated and stored; S2: When there is too much hot water in the hot water tank (905), it circulates through the circulation pipe (914) to maintain its heat. When the water is used, the cold water valve (912) and the hot water valve (913) are opened respectively. The water in the cold water tank (901) and the hot water tank (905) enters the heat exchanger (910) through the delivery pipe (902) and the water inlet hose (906), respectively, and simultaneously flows out of the water outlet pipe (911) for use by the user. S3: A spiral plate heat exchanger (910) is set in the middle water tank to partition the area. The upper layer directly supplies domestic hot water to users through a three-way valve, and the lower layer is connected to the heat pump evaporator to avoid high-temperature water source impacting the heat pump system. This effectively solves the problem that traditional water source heat pumps cannot be used when there is no large-scale clean water source or the water source cannot continuously provide heat energy. At the same time, it solves the problem that medium-grade solar water heaters cannot heat water to the temperature required by users, causing resource waste, thereby saving users a lot of hot water usage fees.

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