Low-temperature air source heat pump hot water unit

Abstract

The utility model belongs to the technical field of air source heat pump hot water units, and particularly relates to a low-temperature type air source heat pump hot water unit which comprises a body, a compressor is fixedly connected to the inner bottom of the body, a first pipeline is fixedly connected to the input end of the compressor, and a heat supply box is fixedly connected to the outer surface of the first pipeline. A flow guide plate is fixedly connected to the inner surface of the heat supply box, a fixing seat is fixedly connected to the inner bottom of the main body, a heating box is fixedly connected to the upper end of the fixing seat, a water inlet pipe is fixedly connected to the side surface of the heating box, a first connecting pipe is fixedly connected to the outer surface of the water inlet pipe, and the lower end of the first connecting pipe is fixedly connected to the side surface of the heat supply box; the other side surface of the heating box is fixedly connected with a water outlet pipe, the outer surface of the water outlet pipe is fixedly connected with a second connecting pipe, and the lower end of the second connecting pipe is fixedly connected with the other side surface of the heating box. According to the utility model, enough heat can be transmitted for a refrigerant to be vaporized, so that the refrigerant is vaporized quickly, the vaporization efficiency of the refrigerant is greatly improved, and the use of equipment is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of air source heat pump water heater units, in particular to a low-temperature air source heat pump water heater unit. Background Art

[0002] As an energy-saving technology, heat pumps have been widely recognized by countries around the world. Air source heat pumps can absorb abundant low-grade energy from the ambient atmosphere. They are easy to use and have low installation costs. Therefore, air source heat pumps have become the most widely used type of heat pumps. The low-temperature air source heat pump hot water unit is suitable for a wide range of outdoor ambient temperatures, from outdoor low temperatures of -30°C to outdoor high temperatures of 48°C. Hot water needs to be produced, and the maximum water temperature needs to reach 50°C.

[0003] In the current existing technology, since the low-temperature air source heat pump hot water unit usually only uses a fan to transfer the heat in the air to the evaporator to vaporize the refrigerant therein, under ultra-low ambient temperature and high water outlet temperature conditions, the heat contained in the air is extremely low and it is impossible to transfer enough heat to the refrigerant to be vaporized, which greatly reduces the efficiency of refrigerant vaporization and is inconvenient to use the equipment. Summary of the invention

[0004] The purpose of the utility model is to provide a low-temperature air source heat pump hot water unit, which can transmit sufficient heat to the refrigerant to be vaporized, so that the refrigerant can be vaporized quickly, greatly improving the efficiency of refrigerant vaporization and facilitating the use of the equipment. At the same time, the hot water entering the water inlet pipe is mixed with the cold water to be heated, which increases the temperature of the cold water, further improves the efficiency of heating the cold water, and facilitates the use of the device.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a low-temperature air source heat pump water heater unit, including a main body, a compressor is fixedly connected to the inner bottom of the main body, the input end of the compressor is fixedly connected to a first pipe, the outer surface of the first pipe is fixedly connected to a heating box, the inner surface of the heating box is fixedly connected to a guide plate, the inner bottom of the main body is fixedly connected to a fixing seat, the upper end of the fixing seat is fixedly connected to the heating box, the side surface of the heating box is fixedly connected to a water inlet pipe, the outer surface of the water inlet pipe is fixedly connected to a first connecting pipe, the lower end of the first connecting pipe is fixedly connected to the side surface of the heating box, the other side surface of the heating box is fixedly connected to a water outlet pipe, the outer surface of the water outlet pipe is fixedly connected to a second connecting pipe, and the lower end of the second connecting pipe is fixedly connected to the other side surface of the heating box.

[0006] Optionally, the output end of the compressor is fixedly connected to a second pipe, the upper end of the second pipe passes through the surface of the heating box and extends to the interior of the heating box, and the upper end of the second pipe is fixedly connected to a spiral tube, one end of the spiral tube passes through the interior of the heating box and extends to the outside of the heating box.

[0007] Optionally, one end of the spiral tube is fixedly connected to an expansion valve, and a side surface of the expansion valve is fixedly connected to a third pipeline.

[0008] Optionally, one end of the third pipeline is fixedly connected to an evaporator, the evaporator is arranged in a serpentine shape, and the lower end of the evaporator is fixedly connected to one end of the first pipeline.

[0009] Optionally, a fixing plate is fixedly connected to the inner surface of the main body, the fixing plate is located on the right side of the evaporator, a motor is fixedly connected to the upper surface of the fixing plate, and a fan is fixedly connected to the output shaft of the motor.

[0010] Optionally, a filter is fixedly connected to the inner surface of the main body, and the filter is located at the outermost side of the main body.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model is provided with a heating box, a guide plate, a heating box, a water inlet pipe, a first connecting pipe, a water outlet pipe and a second connecting pipe. When in the working condition of ultra-low ambient temperature and high outlet water temperature, the first connecting pipe and the second connecting pipe are opened, and the heated hot water flows out from the water outlet pipe, flows into the heating box through the second connecting pipe, and flows under the guidance of the guide plate, so as to provide the required temperature for the refrigerant in the first pipe, accelerate the efficiency of refrigerant vaporization, and under the guidance of the guide plate, the hot water finally reaches the other end of the heating box, flows out from the first connecting pipe, enters the water inlet pipe, and is reheated. Compared with the existing technology, since the low-temperature air source heat pump water heater unit is in use, Usually, only a fan is used to transfer the heat in the air to the evaporator to vaporize the refrigerant therein. However, under conditions of ultra-low ambient temperature and high outlet water temperature, the heat contained in the air is extremely low and cannot transfer enough heat to the refrigerant to be vaporized, which greatly reduces the efficiency of refrigerant vaporization and is inconvenient to use the equipment. This low-temperature air source heat pump hot water unit can transfer enough heat to the refrigerant to be vaporized, so that the refrigerant can be vaporized quickly, greatly improving the efficiency of refrigerant vaporization and facilitating the use of the equipment. At the same time, the hot water entering the water inlet pipe is mixed with the cold water to be heated, which increases the temperature of the cold water, further improves the efficiency of heating the cold water, and facilitates the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of a partially cutaway three-dimensional structure of the utility model from a first viewing angle;

[0016] Figure 3 It is a schematic diagram of a partially cutaway three-dimensional structure of the utility model from a second viewing angle;

[0017] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the utility model.

[0018] In the figure: 1. main body; 2. compressor; 3. first pipeline; 4. heating box; 5. guide plate; 6. fixing seat; 7. heating box; 8. water inlet pipe; 9. first connecting pipe; 10. water outlet pipe; 11. second connecting pipe; 12. second pipeline; 13. spiral tube; 14. expansion valve; 15. third pipeline; 16. evaporator; 17. fixing plate; 18. motor; 19. fan; 20. filter. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0021] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] A low-temperature air source heat pump water heater provided by the present invention is now described. Figures 1 to 4 A low-temperature air source heat pump water heater unit comprises a main body 1, a compressor 2 is fixedly connected to the inner bottom of the main body 1, a first pipe 3 is fixedly connected to the input end of the compressor 2, a heating box 4 is fixedly connected to the outer surface of the first pipe 3, a guide plate 5 is fixedly connected to the inner surface of the heating box 4, the guide plate 5 is spirally connected, the inner side of the guide plate 5 is fixedly connected to the outer surface of the first pipe 3, and the hot water is guided to flow in the heating box 4, so as to accelerate the vaporization of the refrigerant, a fixing seat 6 is fixedly connected to the inner bottom of the main body 1, a heating box 7 is fixedly connected to the upper end of the fixing seat 6, a water inlet pipe 8 is fixedly connected to the side surface of the heating box 7, a first connecting pipe 9 is fixedly connected to the outer surface of the water inlet pipe 8, and the lower end of the first connecting pipe 9 is fixedly connected to the side surface of the heating box 4, and the first connecting pipe 9 introduces hot water into the water inlet pipe 8 so that it is connected with the cold medium. Water mixing can increase the temperature of cold water, save the time of heating cold water and improve the heating efficiency. The other side surface of the heating box 7 is fixedly connected with a water outlet pipe 10, and the outer surface of the water outlet pipe 10 is fixedly connected with a second connecting pipe 11, and the lower end of the second connecting pipe 11 is fixedly connected to the other side surface of the heating box 4. During specific use, when it is in ultra-low ambient temperature and high water outlet temperature, open the first connecting pipe 9 and the second connecting pipe 11, and the heated hot water flows out from the water outlet pipe 10, flows into the heating box 4 through the second connecting pipe 11, and flows under the guidance of the guide plate 5, providing the required temperature for the refrigerant in the first pipeline 3, and accelerating the efficiency of refrigerant vaporization. Under the guidance of the guide plate 5, the hot water finally reaches the other end of the heating box 4, and flows out from the first connecting pipe 9, enters the water inlet pipe 8, and is reheated.

[0024] In the embodiment of the present utility model, please refer to Figures 1 to 4 The output end of the compressor 2 is fixedly connected with a second pipe 12, the upper end of the second pipe 12 passes through the surface of the heating box 7 and extends to the inside of the heating box 7, the upper end of the second pipe 12 is fixedly connected with a spiral tube 13, one end of the spiral tube 13 passes through the inside of the heating box 7 and extends to the outside of the heating box 7, the high-temperature and high-pressure refrigerant gas compressed by the compressor 2 enters the spiral tube 13 through the second pipe 12, stays and liquefies in the spiral tube 13, transfers heat to the cold water to be heated, and then the liquefied refrigerant flows out of the spiral tube 13.

[0025] In the embodiment of the present utility model, please refer to Figures 1 to 4 One end of the spiral tube 13 is fixedly connected to the expansion valve 14, and the side surface of the expansion valve 14 is fixedly connected to the third pipe 15. One end of the third pipe 15 is fixedly connected to the evaporator 16. The evaporator 16 is arranged in a serpentine shape. The lower end of the evaporator 16 is fixedly connected to one end of the first pipe 3. The refrigerant flowing out of the spiral tube 13 flows into the expansion valve 14, and after being reduced in pressure and expanded by the expansion valve 14, it flows into the third pipe 15, and is finally input into the evaporator 16, evaporates and vaporizes in the evaporator 16, and then the vaporized refrigerant returns to the compressor 2 through the first pipe 3.

[0026] In the embodiment of the present utility model, please refer to Figures 1 to 4 A fixing plate 17 is fixedly connected to the inner surface of the main body 1, and the fixing plate 17 is located on the right side of the evaporator 16. A motor 18 is fixedly connected to the upper surface of the fixing plate 17, and a fan 19 is fixedly connected to the output shaft of the motor 18. A filter 20 is fixedly connected to the inner surface of the main body 1, and the filter 20 is located at the outermost side of the main body 1. The start of the motor 18 drives the fan 19 to rotate, and the outside air is sucked into the main body 1, so that the evaporator 16 can absorb heat to evaporate the refrigerant. The filter 20 can prevent larger particles from being brought into the main body 1, and protect the internal structure of the main body 1 from being damaged.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-temperature air source heat pump water heater unit, comprising a main body (1), characterized in that: The inner bottom of the main body (1) is fixedly connected to a compressor (2), the input end of the compressor (2) is fixedly connected to a first pipe (3), the outer surface of the first pipe (3) is fixedly connected to a heating box (4), the inner surface of the heating box (4) is fixedly connected to a guide plate (5), the inner bottom of the main body (1) is fixedly connected to a fixing seat (6), the upper end of the fixing seat (6) is fixedly connected to a heating box (7), the side surface of the heating box (7) is fixedly connected to a water inlet pipe (8), the outer surface of the water inlet pipe (8) is fixedly connected to a first connecting pipe (9), the lower end of the first connecting pipe (9) is fixedly connected to the side surface of the heating box (4), the other side surface of the heating box (7) is fixedly connected to a water outlet pipe (10), the outer surface of the water outlet pipe (10) is fixedly connected to a second connecting pipe (11), the lower end of the second connecting pipe (11) is fixedly connected to the other side surface of the heating box (4).

2. A low-temperature air source heat pump water heater unit as claimed in claim 1, characterized in that: The output end of the compressor (2) is fixedly connected to a second pipe (12), the upper end of the second pipe (12) passes through the surface of the heating box (7) and extends to the interior of the heating box (7), and the upper end of the second pipe (12) is fixedly connected to a spiral tube (13), one end of the spiral tube (13) passes through the interior of the heating box (7) and extends to the outside of the heating box (7).

3. A low-temperature air source heat pump water heater as claimed in claim 2, characterized in that: One end of the spiral tube (13) is fixedly connected to an expansion valve (14), and a side surface of the expansion valve (14) is fixedly connected to a third pipeline (15).

4. A low-temperature air source heat pump water heater as claimed in claim 3, characterized in that: One end of the third pipe (15) is fixedly connected to an evaporator (16), the evaporator (16) is arranged in a serpentine shape, and the lower end of the evaporator (16) is fixedly connected to one end of the first pipe (3).

5. A low-temperature air source heat pump water heater as claimed in claim 1, characterized in that: A fixing plate (17) is fixedly connected to the inner surface of the main body (1), and the fixing plate (17) is located on the right side of the evaporator (16). A motor (18) is fixedly connected to the upper surface of the fixing plate (17), and a fan (19) is fixedly connected to the output shaft of the motor (18).

6. A low-temperature air source heat pump water heater as claimed in claim 1, characterized in that: A filter screen (20) is fixedly connected to the inner surface of the main body (1), and the filter screen (20) is located at the outermost side of the main body (1).

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