Condenser for air energy heat pump

Abstract

The utility model discloses a condenser for an air energy heat pump, which comprises an air energy heat pump machine, a condenser shell is arranged on the rear surface of the inner wall of the air energy heat pump machine, the upper surface of the condenser shell is connected with a collecting pipe, and the other end of the collecting pipe is sequentially connected with a compressor and an evaporator. A backflow pipe is connected to the lower surface of the condenser shell, the other end of the backflow pipe is sequentially connected with an expansion valve and an evaporator, the heat exchange pipe is installed on the side surface of the inner wall of the condenser shell in a penetrating mode, and a heat exchange structure is installed in the heat exchange pipe. According to the heat exchange structure, the heat exchange efficiency is improved by increasing the contact area of heat exchange media. According to the condenser for the air energy heat pump, the heat exchange structure is arranged, the heat exchange efficiency is improved through surrounding of the bent pipes in the heat exchange pipe in the shape of the Chinese character'ji 'and the heat conducting fins, the temperature control structure is arranged, water flow changes through temperature detection, the flow speed is changed, and heat exchange is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of air energy heat pumps, in particular to a condenser for an air energy heat pump. Background Art

[0002] The air source heat pump consists of four main components: evaporator, condenser, compressor, and expansion valve, forming a closed system, which is filled with an appropriate amount of working fluid. The basic principle of the unit operation is based on the reverse card cycle principle: the liquid working fluid first absorbs the heat in the air in the evaporator and evaporates to form steam (vaporization), and the latent heat of vaporization is the recovered heat, and then it is compressed into high-temperature and high-pressure gas by the compressor, enters the condenser and condenses into liquid, and sends the absorbed heat to the required heated water. The liquid working fluid returns to the expansion valve after the expansion valve reduces the pressure and expands, absorbs heat and evaporates to complete a cycle, and so on, continuously absorbing the heat from the low-temperature source and outputting it to the heated water, directly reaching the predetermined temperature, absorbing the low-temperature heat in the air, gasifying it through the fluorine medium, and then compressing it through the compressor to increase the pressure and temperature, and then converting it through the heat exchanger to heat the water, and the compressed high-temperature heat energy is used to heat the water temperature.

[0003] The condenser in the air source heat pump is a heat exchange component in the air source heat pump. Its working principle is: the medium compressed and heated by the compressor enters the interior of the condenser through the conduit and conducts heat conduction with the water pipe inside the condenser to heat the water pipe, so as to realize the heat exchange between the air source heat pump and the external cold water. The heat exchange efficiency of the condenser of the current air source heat pump needs to be improved. For example, a condenser with application number CN202010523695.7 includes a condenser shell, an air inlet pipe, a heat exchange tube group and a vibration device. The vibration device includes a triggering component and a transmission component. The triggering component is connected to the transmission component. The triggering component can be moved by the impact of the refrigerant vapor flowing from the air inlet pipe into the condenser shell. Simple vibration cannot improve the heat exchange efficiency and make the heat exchange effect better. Utility Model Content

[0004] The utility model aims to provide a condenser for an air energy heat pump to solve the problem of low heat exchange efficiency of the condenser proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a condenser for an air energy heat pump, comprising an air energy heat pump machine, a condenser shell is installed on the rear surface of the inner wall of the air energy heat pump machine, the upper surface of the condenser shell is connected to a collecting pipe, and the other end of the collecting pipe is connected to a compressor and an evaporator in sequence, the lower surface of the condenser shell is connected to a return pipe, and the other end of the return pipe is connected to an expansion valve and an evaporator in sequence, and also includes a heat exchange tube, the inner wall side surface of the condenser shell is penetrated by a heat exchange tube, and a heat exchange structure is installed inside the heat exchange tube, and the heat exchange structure improves the heat exchange efficiency by increasing the contact area of ​​the heat exchange medium.

[0006] Preferably, the heat exchange structure includes a bent pipe, which is installed inside the heat exchange pipe and is arranged in a "" shape. The upper end of the bent pipe is connected to a collecting pipe, and the lower end of the bent pipe is connected to a return pipe. A plurality of heat conducting plates are installed on the outer surface of the bent pipe.

[0007] By adopting the above technical solution, the contact area of ​​the exchange medium can be increased through the bends inside the heat exchange tubes, thereby improving the efficiency.

[0008] Preferably, the heat exchange structure also includes a slow flow net, and two slow flow nets are vertically arranged and installed on the inner wall of the heat exchange tube. The slow flow net is hollowed out and has fine holes. A water inlet pipe and a water outlet pipe are installed through the side surface of the condenser shell. The water inlet pipe is connected to the upper end of the heat exchange tube, and the lower end of the heat exchange tube is connected to the water outlet pipe.

[0009] By adopting the above technical solution, the heat exchange contact time can be prolonged through the slow flow net, and the heat exchange effect is better.

[0010] Preferably, the water inlet pipe and the water outlet pipe are installed with a temperature control structure.

[0011] By adopting the above technical solution, the flow rate can be controlled through the temperature control structure to ensure the heat exchange effect.

[0012] Preferably, the temperature control structure includes a thermal sensor, which is embedded in the side surface of the thermal sensor, and one end of the thermal sensor passes through the side wall of the condenser shell and is connected to the temperature control valve, and the temperature control valve is embedded in the water inlet pipe and the water outlet pipe.

[0013] Using the above technical solution, the thermal sensor is connected to the temperature control valve to control the flow of the water inlet and outlet.

[0014] Preferably, a connector is installed at the connection between the heat exchange tube, the collecting pipe and the return pipe, and a sealing structure is provided inside the connector.

[0015] By adopting the above technical solution, leakage can be avoided through the sealing structure.

[0016] Preferably, the sealing structure includes a sealing bag, the collecting pipe passes through the middle of the sealing bag, pistons are connected to both sides of the sealing bag and fixing rings are connected to the sides of the pistons, the fixing rings are arranged in a semi-arc shape, and the two fixing rings are connected by bolts, the lower surface of the sealing bag is connected to a clamping ring, and a protrusion is arranged on the rear section of the clamping ring, and the protrusion is connected to the fixing ring.

[0017] By adopting the above technical solution, leakage can be avoided when the heat exchange medium enters and exits.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the condenser for the air energy heat pump:

[0019] 1. A heat exchange structure is provided, which is surrounded in a "S" shape in the heat exchange tube through a bend. When the heat exchange medium enters through the header, the contact time and contact area with the heat exchange medium are increased. A plurality of heat conducting fins are also provided on the outer surface of the bend to speed up the heat exchange efficiency;

[0020] 2. The heat exchange structure is also provided with a slow flow net, so that after the water flows through the water inlet pipe, after reaching the circulation net, the water flow is buffered by the fine net, which is convenient for the water body to contact with the curved pipe, so that the heat conducting sheet can play a better role and improve the heat exchange efficiency;

[0021] 3. A temperature control structure is provided in the heat exchange structure. The thermal sensor provided can detect the internal heat exchange conditions and control the temperature control valve according to the temperature so that the water flow changes through the temperature detection, changes the flow rate, and makes the heat exchange uniform. In addition, temperature control structures are provided at the water inlet and outlet to make the heat exchange more uniform.

[0022] 4. Connectors are installed at the joints between the collecting pipe, the return pipe and the heat exchange pipe, and a sealing structure is arranged inside the connector. The sealing structure can avoid leakage during medium exchange and affect the heat exchange effect.

[0023] 5. In the sealing structure, the piston is pushed by the fixing ring, and then the sealing bag is expanded to clamp the pipe. Then, the fixing ring is connected by bolts, and the clamping ring under the sealing bag is clamped to obtain double sealing of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front cross-section structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the front cross-section structure of the condenser shell of the utility model;

[0026] Figure 3 This is a schematic diagram of the side cross-section structure of the utility model elbow;

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model slow flow net from top view;

[0028] Figure 5 This is a schematic diagram of the front cross-section structure of the sealing structure of the utility model;

[0029] Figure 6 It is a schematic diagram of the cross-sectional structure of the sealing structure of the utility model from top view.

[0030] In the figure: 1. air energy heat pump; 2. collecting pipe; 3. return pipe; 4. condenser shell; 5. water inlet pipe; 6. water outlet pipe; 7. heat exchange tube; 8. elbow; 9. slow flow net; 10. thermal sensor; 11. temperature control valve; 12. heat conductive plate; 13. connector; 14. sealing bag; 15. piston; 16. clamping ring; 17. fixing ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-6 The utility model provides a technical solution: a condenser for an air energy heat pump, including an air energy heat pump machine 1, a collecting pipe 2, a return pipe 3, a condenser shell 4, a water inlet pipe 5, a water outlet pipe 6, a heat exchange pipe 7, a curved pipe 8, a slow flow net 9, a thermal sensor 10, a temperature control valve 11, a heat conducting sheet 12, a connecting piece 13, a sealing bag 14, a piston 15, a clamping ring 16, and a fixing ring 17.

[0033] Example 1

[0034] The condenser is provided with a heat exchange structure to increase the contact area during heat exchange and improve the heat exchange efficiency, specifically:

[0035] The rear surface of the inner wall of the air energy heat pump 1 is equipped with a condenser shell 4, the upper surface of the condenser shell 4 is connected with a header 2, and the other end of the header 2 is connected to the compressor and the evaporator in sequence, the lower surface of the condenser shell 4 is connected with a return pipe 3, and the other end of the return pipe 3 is connected to the expansion valve and the evaporator in sequence, and also includes a heat exchange tube 7, the inner wall side surface of the condenser shell 4 is penetrated with the heat exchange tube 7, and the heat exchange structure is installed inside the heat exchange tube 7. The heat exchange structure improves the heat exchange efficiency by increasing the contact area of ​​the heat exchange medium. The heat exchange structure includes There is a bend pipe 8, which is installed inside the heat exchange tube 7, and the bend pipe 8 is arranged in a "" shape. The upper end of the bend pipe 8 is connected to the collecting pipe 2, and the lower end of the bend pipe 8 is connected to the return pipe 3. The outer surface of the bend pipe 8 is installed with a plurality of heat conducting plates 12. The heat exchange structure also includes a slow flow net 9. Two slow flow nets 9 are vertically arranged and installed on the inner wall of the heat exchange tube 7. The slow flow net 9 is hollowed out and has fine holes. The side surface of the condenser shell 4 is penetrated and installed with a water inlet pipe 5 and a water outlet pipe 6. The water inlet pipe 5 is connected to the upper end of the heat exchange tube 7, and the lower end of the heat exchange tube 7 is connected to the water outlet pipe 6.

[0036] like Figure 1 As shown, the condenser is installed inside the air energy heat pump 1, and the condenser is connected to the compressor, evaporator and expansion valve of the air energy heat pump 1 through the header 2 and the header 3. The condenser shell is installed on the inner wall surface of the air energy heat pump 1. After starting operation, Figure 2 As shown, the heat exchange medium enters the condenser shell through the collecting pipe 2, then enters the inside of the elbow 8, and reaches the heat exchange tube 7. At the same time, water flows into the heat exchange tube 7 through the water inlet pipe 5, and the water flows in contact with the elbow 8. At this time, the heat conductive plate 12 installed on the outer surface of the elbow 8 also contacts with the water flow, which speeds up the heat exchange efficiency. Then, the water flows through the slow flow net 9 to be buffered, so that the contact time between the water flow and the elbow 8 is prolonged, and the heat exchange efficiency is better.

[0037] Example 2

[0038] On the basis of Example 1, the heat exchange structure is further provided with a temperature control structure, and the temperature control structure makes the heat exchange effect better, specifically:

[0039] The water inlet pipe 5 and the water outlet pipe 6 are installed with a temperature control structure, which includes a thermal sensor 10, which is embedded in the side surface of the thermal sensor 10, and one end of the thermal sensor 10 passes through the side wall of the condenser shell 4 and is connected to the temperature control valve 11, and the temperature control valve 11 is embedded in the water inlet pipe 5 and the water outlet pipe 6;

[0040] The water flow in contact with the buffer net 9 can detect the heat exchange situation through the thermal sensor 10. When the heat exchange effect reaches the set temperature, the temperature control valve 11 connected to the thermal sensor 10 will automatically open to increase the water flow and push the water flow downward quickly. When the set temperature is not reached, the temperature control valve 11 will reduce the water flow to make the heat exchange more uniform. The thermal sensor 10 set on the slow flow net 9 below is as above, which can control the water flow by temperature to achieve better heat exchange effect.

[0041] Example 3

[0042] On the basis of Example 1 and Example 2, the sealing structure provided inside the connector 13 can prevent leakage of the heat exchange medium, specifically:

[0043] A connector 13 is installed at the connection between the heat exchange tube 7 and the header 2 and the return pipe 3, and a sealing structure is arranged inside the connector 13, the sealing structure includes a sealing bag 14, the header 2 passes through the middle of the sealing bag 14, pistons 15 are connected to both sides of the sealing bag 14, and the side of the piston 15 is connected to a fixing ring 17, the fixing ring 17 is set to be semi-arc-shaped, and the two fixing rings 17 are connected by bolts, the lower surface of the sealing bag 14 is connected to a clamping ring 16, and a protrusion is arranged at the rear section of the clamping ring 16, and the protrusion is connected to the fixing ring 17;

[0044] At the connection point where the heat exchange medium enters the heat exchange tube 7 through the header 2, a connector 13 is provided. The sealing structure provided inside the connector can prevent the heat exchange medium from leaking. Figure 6 As shown, first, the symmetrically arranged fixing rings 17 are fixedly connected by bolts, and at the same time, the front end of the fixing ring 17 is connected to the piston 15 to push, so that the airflow enters the sealing bag 14, and the sealing bag 14 clamps the pipeline for preliminary sealing, and then the clamping ring 16 connected to the fixing ring 17 is also clamped inward at the same time, so that the sealing structure further fixes and seals the pipeline. Through the sealing structure, the practicality of the condenser for the air energy heat pump is improved.

[0045] Working principle: When using the condenser for the air energy heat pump, the heat transfer efficiency is improved by the heat conducting sheet installed on the heat exchange structure, and a temperature control structure is provided to make the heat transfer more uniform. The sealing structure can avoid leakage during medium exchange, thereby increasing the overall practicality.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A condenser for an air energy heat pump, comprising an air energy heat pump (1), a condenser shell (4) being installed on the rear surface of the inner wall of the air energy heat pump (1), a header (2) being connected to the upper surface of the condenser shell (4), and the other end of the header (2) being connected to a compressor and an evaporator in sequence, a return pipe (3) being connected to the lower surface of the condenser shell (4), and the other end of the return pipe (3) being connected to an expansion valve and an evaporator in sequence, characterized in that: It also includes a heat exchange tube (7), the inner wall side surface of the condenser shell (4) is penetrated by the heat exchange tube (7), and a heat exchange structure is installed inside the heat exchange tube (7), and the heat exchange structure improves the heat exchange efficiency by increasing the contact area of ​​the heat exchange medium; the heat exchange structure includes a bend (8), the bend (8) is installed inside the heat exchange tube (7), and the bend (8) is arranged in a "" shape, the upper end of the bend (8) is connected to the collecting pipe (2), and the lower end of the bend (8) is connected to the return pipe (3), and the outer surface of the bend (8) is installed with a plurality of heat conducting plates (12).

2. The condenser for an air energy heat pump according to claim 1, characterized in that: The heat exchange structure also includes a slow flow net (9), and two slow flow nets (9) are installed vertically on the inner wall of the heat exchange tube (7), and the slow flow net (9) is hollowed out and provided with fine holes. A water inlet pipe (5) and a water outlet pipe (6) are installed through the side surface of the condenser shell (4), and the water inlet pipe (5) is connected to the upper end of the heat exchange tube (7), and the lower end of the heat exchange tube (7) is connected to the water outlet pipe (6).

3. The condenser for an air energy heat pump according to claim 2, characterized in that: The water inlet pipe (5) and the water outlet pipe (6) are equipped with a temperature control structure.

4. The condenser for an air energy heat pump according to claim 3, characterized in that: The temperature control structure comprises a thermal sensor (10), wherein the thermal sensor (10) is embedded in a side surface of the thermal sensor (10), and one end of the thermal sensor (10) penetrates through a side wall of a condenser housing (4) and is connected to a temperature control valve (11), and the temperature control valve (11) is embedded in a water inlet pipe (5) and a water outlet pipe (6).

5. The condenser for an air energy heat pump according to claim 1, characterized in that: A connector (13) is installed at the connection between the heat exchange tube (7) and the collecting tube (2) and the return tube (3), and a sealing structure is provided inside the connector (13).

6. The condenser for an air energy heat pump according to claim 5, characterized in that: The sealing structure comprises a sealing bag (14), the collecting pipe (2) passes through the middle of the sealing bag (14), pistons (15) are connected to both sides of the sealing bag (14), and the side of the piston (15) is connected to a fixing ring (17), the fixing ring (17) is arranged in a semi-arc shape, and the two fixing rings (17) are connected by bolts, the lower surface of the sealing bag (14) is connected to a clamping ring (16), and a protrusion is arranged at the rear section of the clamping ring (16), and the protrusion is connected to the fixing ring (17).

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