Automatic defrosting equipment for air energy heat exchanger

Abstract

The utility model relates to the technical field of air energy heat exchangers, and discloses an air energy heat exchanger automatic defrosting device which comprises a shell, a plate heat exchanger is arranged in an inner cavity of the shell, a flow guide pipe is fixedly connected to the outer wall of the plate heat exchanger, and a water inlet pipe is fixedly connected to the outer wall of the plate heat exchanger. According to the automatic defrosting equipment for the air energy heat exchanger, the fan equipment on the device and a bidirectional detector are used in cooperation, so that the fan equipment on the device outputs cold air outwards under normal use, and the air energy heat exchanger can be used for defrosting the air energy heat exchanger. And when the inside of the device needs to be defrosted, the normal-temperature environment temperature outside the device is detected firstly through the two-way detector, and when the external temperature is large, the fan equipment rotates reversely, so that the device defrosts the plate heat exchanger inside the device through external normal-temperature air.

Description

Technical Field

[0001] The utility model relates to the technical field of air energy heat exchangers, in particular to automatic defrosting equipment for air energy heat exchangers. Background Art

[0002] The air energy heat exchanger is a highly efficient heat exchanger that uses heat pump technology to transfer the heat energy of outdoor air to indoor through the heat exchange process to achieve indoor heating or cooling. Its working principle is to use the heat energy in the air for heat exchange, compress the refrigerant into high-temperature and high-pressure gas through the compressor, and then emit high-temperature heat energy through the condenser to achieve indoor heating.

[0003] The existing automatic defrosting equipment for air-energy heat exchangers can refer to the Chinese utility model patent with the authorization announcement number CN210374262U, which discloses an automatic defrosting equipment for air-energy heat exchangers, "including: a controller, a temperature sensor, a starting device, an insulated water tank, a heat exchange pipe and a flushing device; the insulated water tank stores high-temperature hot water; the heat exchange pipe passes through the insulated water tank, one end is connected to the water inlet device through the starting device; the other end is connected to the flushing device; the temperature sensor is arranged on the surface of the air-energy heat exchanger and connected to the controller; the controller controls the starting device to start or shut down according to the surface temperature of the air-energy heat exchanger."

[0004] When the above device is in use, the existing device uses an external automatic defrosting device to detect the temperature of the air energy heat exchanger, automatically trigger the automatic defrosting device, and continuously spray high-temperature and high-pressure water on the surface of the air energy heat exchanger to increase the surface temperature of the air energy heat exchanger. However, this will cause unnecessary waste of high-temperature water. For this reason, while solving the problem of defrosting of the air energy heat exchanger, the fan device on the device is used to reverse the normal temperature air outside the device and turn it into a power source for defrosting, thereby eliminating water waste. When the temperature outside the device is low, the heat flow introduced into the device is used to dissipate part of the heat to solve the defrosting problem, thereby avoiding the first process of the device being unable to solve the defrosting problem. Therefore, an air energy heat exchanger automatic defrosting device that solves the above problem is needed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides an air energy heat exchanger automatic defrosting device, which has the advantages of strong practicability, reverse fan, normal temperature wind, overflow heat, etc., and solves the problems raised by the above background technology.

[0006] The utility model provides the following technical solution: an air energy heat exchanger automatic defrosting device, comprising a shell, an inner cavity of the shell is provided with a plate heat exchanger, an outer wall of the plate heat exchanger is fixedly connected with a guide pipe, an outer wall of the plate heat exchanger is fixedly connected with a water inlet pipe, an inner wall of the shell is fixedly connected with a connecting rod, the top of the shell is fixedly connected with a top and bottom cover, an outer wall of the top and bottom cover is fixedly connected with a two-way detector, an outer wall of the shell is fixedly connected with a vent, an outer wall of the vent is fixedly connected with a barrier net, a fan device is provided in the inner cavity of the vent, an end of the guide pipe away from the plate heat exchanger is fixedly connected with a guide valve, an outer wall of the guide valve is provided with a controller, and an outer wall of the controller is fixedly connected with a flow air pipe.

[0007] As a preferred technical solution of the utility model, there are several plate heat exchangers, and the several plate heat exchangers are all provided with flow guide pipes and water inlet pipes.

[0008] As a preferred technical solution of the utility model, the number of the top and bottom covers is two, and the two top and bottom covers are arranged at the upper and lower ends of the shell.

[0009] As a preferred technical solution of the present invention, the vent is arranged on the left side of the shell, and a flow vent is arranged at the other end of the shell away from the vent.

[0010] As a preferred technical solution of the utility model, the bidirectional detector extends to the inner and outer walls of the top and bottom covers, and the bidirectional detector detects the temperature difference between the inside and outside of the top and bottom covers.

[0011] As a preferred technical solution of the utility model, the other end of the flow air pipe away from the controller is arranged in the inner cavity of the vent, and the controller controls the flow state of the flow air pipe.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The automatic defrosting device of the air energy heat exchanger uses the fan device and the two-way detector on the device in coordination with each other, so that the fan device on the device outputs cold air to the outside under normal use, and when the inside of the device needs to be defrosted, the two-way detector is used to first detect the normal temperature of the environment outside the device, and when the external temperature is high, the fan device is used to reverse, so that the device uses the external normal temperature wind to defrost the plate heat exchanger inside the device.

[0014] 2. The automatic defrosting device of the air-energy heat exchanger uses the fan device, the two-way detector, the flowing air pipe and the flowing air pipe in coordination with each other, so that the two-way detector on the device monitors the temperature inside and outside the device. When it is detected that the external normal temperature is low, the two-way detector is used to automatically start the valve port of the controller, and the heat flow flowing in the inner cavity of the guide pipe diverts part of the heat to the inner cavity of the flowing air pipe, so that the flowing air pipe on the device can exert its own internal heat, and then the fan device on the device blows the heat dissipated by the flowing air pipe to defrost the plate heat exchanger inside the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of the utility model from another viewing angle;

[0017] Figure 3 This is a schematic diagram of the structure of the diversion valve of the utility model;

[0018] Figure 4 It is a schematic diagram of the right side three-dimensional cross-sectional structure of the utility model;

[0019] Figure 5 For this utility model Figure 4 A schematic diagram of the enlarged structure in the middle.

[0020] In the figure: 1. Shell; 2. Plate heat exchanger; 3. Guide pipe; 4. Water inlet pipe; 5. Connecting rod; 6. Top and bottom covers; 7. Two-way detector; 8. Ventilation opening; 9. Barrier net; 10. Fan device; 11. Guide valve; 12. Controller; 13. Flow air pipe. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 5An air energy heat exchanger automatic defrosting device comprises a shell 1, an inner cavity of the shell 1 is provided with a plate heat exchanger 2, an outer wall of the plate heat exchanger 2 is fixedly connected with a guide pipe 3, an outer wall of the plate heat exchanger 2 is fixedly connected with a water inlet pipe 4, an inner wall of the shell 1 is fixedly connected with a connecting rod 5, a top and bottom cover 6 is fixedly connected to the top of the shell 1, a bidirectional detector 7 is fixedly connected to the outer wall of the top and bottom cover 6, a vent 8 is fixedly connected to the outer wall of the vent 8, a barrier net 9 is fixedly connected to the outer wall of the vent 8, a fan device 10 is provided in the inner cavity of the vent 8, and one end of the guide pipe 3 away from the plate heat exchanger 2 is fixedly connected to A guide valve 11 is connected, and a controller 12 is provided on the outer wall of the guide valve 11. A flow air pipe 13 is fixedly connected to the outer wall of the controller 12. Through the coordinated use of the fan device 10, the two-way detector 7 and the vent 8 on the device, the fan device 10 on the device outputs cold air to the outside under normal use, and when the inside of the device needs to be defrosted, the two-way detector 7 is used to first detect the normal temperature of the environment outside the device, and when the external temperature is relatively high, the fan device 10 is used to reverse, so that the device uses the external normal temperature wind to defrost the plate heat exchanger 2 inside the device.

[0023] In a preferred embodiment, there are several plate heat exchangers 2, and the several plate heat exchangers 2 are provided with a guide pipe 3 and a water inlet pipe 4. Through the several plate heat exchangers 2 on the device, the plate heat exchangers 2 on the device are all arranged in the inner cavity of the shell 1, and the guide pipe 3 and the water inlet pipe 4 are used for countercurrent exchange circulation, so that the device improves the efficiency of the exchanger.

[0024] In a preferred embodiment, the number of top and bottom covers 6 is two, and the two top and bottom covers 6 are arranged at the upper and lower ends of the outer shell 1. Through the two top and bottom covers 6 on the device, the outer shell 1 on the device is connected together with the top and bottom covers 6 at the upper and lower ends, so that the outer shell 1 on the device and the top and bottom covers 6 form an outer shell that is sleeved on the outside of the device.

[0025] In a preferred embodiment, the vent 8 is arranged on the left side of the shell 1, and a flow outlet is arranged on the other end of the shell 1 away from the vent 8. By setting the vent 8 on the device on the left side of the shell 1, the vent 8 on the device can be used for exhaust or intake of air, and a flow outlet is arranged on the other end away from the vent 8, so that the device can use the flow outlet at the other end to exhaust or intake of air.

[0026] In a preferred embodiment, the bidirectional detector 7 extends to the inner and outer walls of the top and bottom covers 6, and the bidirectional detector 7 detects the temperature difference between the inside and outside of the top and bottom covers 6. The bidirectional detector 7 on the device is extended to the inner and outer walls of the top and bottom covers 6, so that the bidirectional detector 7 on the device monitors the temperature of the inner and outer parts of the device on the outer wall of the top and bottom covers 6, and uses the bidirectional detector 7 to detect the temperature difference between the inner and outer ends of the device, so that the bidirectional detector 7 on the device designs the switch valve for the controller 12.

[0027] In a preferred embodiment, the other end of the flow air pipe 13 away from the controller 12 is arranged in the inner cavity of the vent 8, and the controller 12 controls the fluidity state of the flow air pipe 13. By setting the other end of the flow air pipe 13 on the device away from the controller 12 in the inner cavity of the vent 8, the flow air pipe 13 on the device can exert its own heat in the inner cavity of the vent 8, and the controller 12 is used to control the output of heat to the flow air pipe 13, so that the flow air pipe 13 on the device can normally exert its own heat.

[0028] The working principle is that the fan device 10 and the two-way detector 7 on the device cooperate with each other, so that the fan device 10 on the device outputs cold air to the outside under normal use, and when the inside of the device needs to be defrosted, the two-way detector 7 is used to first detect the normal temperature environment temperature outside the device, and when the external temperature is relatively high, the fan device 10 is reversed, so that the device uses the external normal temperature wind to defrost the plate heat exchanger 2 inside the device, and then the fan device 10, the two-way detector 7, the flow air pipe 13 and the flow air pipe 13 on the device cooperate with each other, so that the two-way detector 7 on the device monitors the temperature inside and outside the device. When it is detected that the external normal temperature is low, the two-way detector 7 is used to automatically start the valve port of the controller 12, and the heat flow flowing in the inner cavity of the guide pipe 3 diverts part of the heat to the inner cavity of the flow air pipe 13, so that the flow air pipe 13 on the device can exert its own internal heat, and then the fan device 10 on the device blows the heat dissipated by the flow air pipe 13 to defrost the plate heat exchanger 2 inside the device.

[0029] 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. An air energy heat exchanger automatic defrosting device, comprising a housing (1), characterized in that: The inner cavity of the shell (1) is provided with a plate heat exchanger (2), the outer wall of the plate heat exchanger (2) is fixedly connected with a flow guide pipe (3), the outer wall of the plate heat exchanger (2) is fixedly connected with a water inlet pipe (4), the inner wall of the shell (1) is fixedly connected with a connecting rod (5), the top of the shell (1) is fixedly connected with a top and bottom cover (6), the outer wall of the top and bottom cover (6) is fixedly connected with a two-way detector (7), the outer wall of the shell (1) is fixedly connected with a vent (8), the outer wall of the vent (8) is fixedly connected with a barrier net (9), the inner cavity of the vent (8) is provided with a fan device (10), the end of the flow guide pipe (3) away from the plate heat exchanger (2) is fixedly connected with a flow guide valve (11), the outer wall of the flow guide valve (11) is provided with a controller (12), and the outer wall of the controller (12) is fixedly connected with a flow air pipe (13).

2. The automatic defrosting device for air energy heat exchanger according to claim 1, characterized in that: The number of the plate heat exchangers (2) is several, and each of the plate heat exchangers (2) is provided with a flow guide pipe (3) and a water inlet pipe (4).

3. The automatic defrosting device for air energy heat exchanger according to claim 1, characterized in that: The number of the top and bottom covers (6) is two, and the two top and bottom covers (6) are arranged at the upper and lower ends of the outer shell (1).

4. The automatic defrosting device for air energy heat exchanger according to claim 1, characterized in that: The ventilation opening (8) is arranged on the left side of the housing (1), and a flow air outlet is arranged at the other end of the housing (1) away from the ventilation opening (8).

5. The automatic defrosting device for air energy heat exchanger according to claim 1, characterized in that: The bidirectional detector (7) extends to the inner and outer walls of the top and bottom covers (6), and the bidirectional detector (7) detects the temperature difference between the inside and outside of the top and bottom covers (6).

6. The automatic defrosting device for air energy heat exchanger according to claim 1, characterized in that: The other end of the flow air pipe (13) away from the controller (12) is arranged in the inner cavity of the ventilation port (8), and the controller (12) controls the flow state of the flow air pipe (13).

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