Micro-channel dehumidification heat pipe capable of adjusting flow

Abstract

The utility model relates to the technical field of dehumidification heat pipes, in particular to a flow-adjustable micro-channel dehumidification heat pipe. The device comprises a micro-channel precooling heat exchanger, a micro-channel reheating heat exchanger, a gas collecting pipe and a liquid collecting pipe, the gas collecting pipe on the micro-channel precooling heat exchanger is externally connected with a gas outlet pipe, the gas collecting pipe on the micro-channel reheating heat exchanger is externally connected with a gas inlet pipe, the gas outlet pipe and the gas inlet pipe are communicated with each other through a first branch gas pipe, and the first branch gas pipe is communicated with the liquid collecting pipe through a second branch gas pipe. A liquid collecting pipe on the channel pre-cooling heat exchanger is externally connected with a liquid inlet pipe, a liquid collecting pipe on the micro-channel reheating heat exchanger is externally connected with a liquid outlet pipe, and the liquid inlet pipe and the liquid outlet pipe are communicated with each other through a first branch liquid pipe. The utility model has the beneficial effects that the technical scheme utilizes the start-stop three-way solenoid valve to change the flow channel loop of the branch liquid pipe, and fully utilizes the pipe diameter of the flow channel loop of the branch liquid pipe to change the flow of the refrigerant and adjust the heat exchange efficiency and the reheating temperature rise.

Description

Technical Field

[0001] The utility model relates to the technical field of dehumidification heat pipes, in particular to a flow-adjustable microchannel dehumidification heat pipe. Background Art

[0002] In the pharmaceutical industry, dehumidification heat pipes are widely used in constant temperature and humidity workshops to pre-cool air, reduce relative humidity, and then reheat. These applications not only help control the ambient humidity of pharmaceutical production but also significantly reduce the operating energy consumption of air conditioning systems.

[0003] Under high-temperature conditions, excessive heat exchange efficiency in the dehumidification heat pipe can cause the supply air temperature after reheating to exceed the set value, potentially increasing the equipment's operating load and energy consumption. Furthermore, excessive reheat temperature rise in the dehumidification heat pipe can cause changes in the moisture content of the air, which in turn can affect the moisture content of the medicine, affecting its stability and effectiveness.

[0004] For existing microchannel dehumidification heat pipes, the existing control mode is to reduce the reheating temperature by cutting off the connecting liquid pipe channel loop between the pre-cooling section and the reheating section of the microchannel dehumidification heat pipe. The heat exchange capacity and heat exchange efficiency of the dehumidification heat pipe cannot be adjusted. Under high temperature conditions, the energy consumption of pre-cooling and reheating offsets the most. The dehumidification heat pipe needs to cut off the circuit and stop using because the reheating temperature rise is too high, and its energy-saving effect is greatly reduced.

[0005] Therefore, it is necessary to design a flow-adjustable microchannel dehumidification heat pipe to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a flow-adjustable microchannel dehumidification heat pipe to overcome the above-mentioned deficiencies in the current prior art.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A flow-adjustable microchannel dehumidification heat pipe, comprising a microchannel precooling heat exchanger, a microchannel reheating heat exchanger, gas manifolds respectively arranged on the channel precooling heat exchanger and the microchannel reheating heat exchanger and connected to each other, and liquid manifolds respectively arranged under the channel precooling heat exchanger and the microchannel reheating heat exchanger and connected to each other, characterized in that: the gas manifold on the channel precooling heat exchanger is externally connected to an outlet pipe, the gas manifold on the microchannel reheating heat exchanger is externally connected to an inlet pipe, the outlet pipe and the inlet pipe are connected to each other through a first bronchial pipe, and the channel The liquid collecting pipe on the pre-cooling heat exchanger is externally connected to a liquid inlet pipe, and the liquid collecting pipe on the microchannel reheat heat exchanger is externally connected to a liquid outlet pipe. The liquid inlet pipe and the liquid outlet pipe are connected to each other through a first branch pipe. The first branch pipe is connected to a first three-way solenoid valve and a second three-way solenoid valve, the second three-way solenoid valve is externally connected to a third branch pipe, the fourth outlet pipe is externally connected to a second branch pipe, and the second branch pipe and the third branch pipe are connected to each other, the first branch pipe is externally connected to a fourth branch pipe, and the other end of the fourth branch pipe is connected to the third branch pipe.

[0009] Preferably, the left end of the first three-way solenoid valve is connected to the third liquid outlet pipe, the right end of the first three-way solenoid valve is connected to the second liquid inlet pipe, the front end of the first three-way solenoid valve is connected to the fourth liquid outlet pipe, and the third liquid outlet pipe and the second liquid inlet pipe are both connected to the first branch liquid pipe.

[0010] Preferably, the left end of the second three-way solenoid valve is connected to the first liquid outlet pipe, the front end of the first three-way solenoid valve is connected to the second liquid outlet pipe, the right end of the first three-way solenoid valve is connected to the first liquid inlet pipe, the first liquid outlet pipe and the first liquid inlet pipe are both connected to the first liquid branch pipe, the second liquid outlet pipe is connected to the third liquid branch pipe, and the other end of the fourth liquid branch pipe is placed at the rear end of the second three-way solenoid valve.

[0011] Preferably, the first three-way solenoid valve is placed at one end of the liquid outlet pipe, and the second three-way solenoid valve is placed at one end of the liquid inlet pipe.

[0012] The beneficial effects of the present invention are as follows: the present technical solution arranges two groups of three-way solenoid valves on the first branch liquid pipe and the second, third and fourth branch liquid pipes connected in conjunction therewith, utilizes the start-stop three-way solenoid valve to change the flow path loop of the branch liquid pipe, and fully utilizes the pipe diameter size of the branch liquid pipe flow path loop to change the flow rate of the refrigerant, thereby adjusting the heat exchange efficiency and reheating temperature rise of the dehumidification heat pipe, so as to solve the problems in the prior art where the dehumidification heat pipe cannot work under high temperature conditions, and at the same time adjusts and controls the supply air temperature according to the requirements of different working conditions, so as to achieve the best energy-saving effect under different dehumidification working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is a schematic structural diagram of a flow-adjustable microchannel dehumidification heat pipe according to the present invention;

[0014] In the figure: 1. Channel pre-cooling heat exchanger; 2. Microchannel reheat heat exchanger; 3. Gas manifold; 4. Liquid manifold; 5. Gas outlet pipe; 6. Gas inlet pipe; 7. First branch pipe; 8. Liquid outlet pipe; 9. Liquid inlet pipe; 10. First liquid branch pipe; 11. Second liquid branch pipe; 12. Third liquid branch pipe; 13. Fourth liquid branch pipe; 14. First three-way solenoid valve; 14-2. Third liquid outlet pipe; 14-1. Second liquid inlet pipe; 14-3. Fourth liquid outlet pipe; 15. Second three-way solenoid valve; 15-2. First liquid outlet pipe; 15-3. Second liquid outlet pipe; 15-1. First liquid inlet pipe. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0017] Reference Figure 1 A flow-adjustable microchannel dehumidification heat pipe comprises a microchannel precooling heat exchanger 1, a microchannel reheating heat exchanger 2, a gas manifold 3 respectively disposed on the precooling heat exchanger 1 and the microchannel reheating heat exchanger 2 and connected to each other, and a liquid manifold 4 respectively disposed under the precooling heat exchanger 1 and the microchannel reheating heat exchanger 2 and connected to each other;

[0018] The gas manifold 3 on the channel pre-cooling heat exchanger 1 is externally connected to an outlet pipe 5, and the gas manifold 3 on the microchannel reheat heat exchanger 2 is externally connected to an inlet pipe 6, and the outlet pipe 5 and the inlet pipe 6 are connected to each other through a first branch pipe 7;

[0019] The liquid manifold 4 on the channel pre-cooling heat exchanger 1 is externally connected to a liquid inlet pipe 9, and the liquid manifold 4 on the microchannel reheat heat exchanger 2 is externally connected to a liquid outlet pipe 8, and the liquid inlet pipe 9 and the liquid outlet pipe 8 are connected to each other through a first branch liquid pipe 10;

[0020] The first branch liquid pipe 10 is connected to a first three-way solenoid valve 14 and a second three-way solenoid valve 15;

[0021] The left end of the first three-way solenoid valve 14 is connected to a third liquid outlet pipe 14-2, the right end of the first three-way solenoid valve 14 is connected to a second liquid inlet pipe 14-1, and the front end of the first three-way solenoid valve 14 is connected to a fourth liquid outlet pipe 14-3. The third liquid outlet pipe 14-2 and the second liquid inlet pipe 14-1 are both connected to the first branch liquid pipe 10. The fourth liquid outlet pipe 14-3 is externally connected to the second branch liquid pipe 11, and the second branch liquid pipe 11 and the third branch liquid pipe 12 are connected to each other.

[0022] The left end of the second three-way solenoid valve 15 is connected to a first liquid outlet pipe 15-2, the front end of the first three-way solenoid valve is connected to a second liquid outlet pipe 15-3, and the right end of the first three-way solenoid valve is connected to a first liquid inlet pipe 15-1. Both the first liquid outlet pipe 15-2 and the first liquid inlet pipe 15-1 are connected to the first liquid branch pipe 10. The second liquid outlet pipe 15-3 is externally connected to the third liquid branch pipe 12. The first liquid branch pipe is externally connected to a fourth liquid branch pipe 13, and the other end of the fourth liquid branch pipe 13 is connected to the third liquid branch pipe 12. The other end of the fourth liquid branch pipe 13 is placed at the rear end of the second three-way solenoid valve 15, that is, after the first liquid outlet pipe 15-2.

[0023] The first three-way solenoid valve 14 is placed at one end of the liquid outlet pipe 8, and the second three-way solenoid valve 15 is placed at one end of the liquid inlet pipe 9;

[0024] In this embodiment, when the air is pre-cooled and reheated through the dehumidification heat pipe, the three-way solenoid valve 14-2 and the third liquid outlet pipe are not energized during normal operation; 14-1 and the second liquid inlet pipe; and 15-2, the first liquid outlet pipe 15-1, the first liquid inlet pipe connection circuit is normally open, and the refrigerant flows in the microchannel pre-cooling heat exchanger 1, the microchannel reheat heat exchanger 2, the first branch pipe 7, and the first branch liquid pipe 10 circulation loop and transfers heat; when it is detected that the supply air temperature is too high, that is, the reheating temperature rise is too high, the three-way solenoid valve 14 is energized, the third liquid outlet pipe 14-2 is disconnected, the second liquid inlet pipe 14-1 and the fourth liquid outlet pipe 14-3 are connected, and the refrigerant flows in the microchannel pre-cooling heat exchanger 1, the microchannel reheat heat exchanger 2, the first branch pipe 7, the branch pipe circuit, the liquid collecting pipe 4 of the microchannel reheat heat exchanger-the second branch liquid pipe 11-the fourth branch liquid pipe 1 3-channel pre-cooling heat exchanger circulates and transfers heat in the liquid manifold 4 of the pre-cooling heat exchanger; when the refrigerant conducts heat for a period of time in the liquid manifold 4 of the branch pipe loop microchannel reheat heat exchanger-the second branch pipe 11-the fourth branch pipe 13-the liquid manifold 4 of the pre-cooling heat exchanger, and detects that the supply air temperature is too high, that is, the reheating temperature rise is too high, the first three-way solenoid valve 14 is de-energized, the second three-way solenoid valve 15 is energized, the first liquid outlet pipe 15-2 is disconnected, the first liquid inlet pipe 15-1 and the second liquid outlet pipe 15-3 are connected, and the refrigerant circulates and transfers heat in the microchannel pre-cooling heat exchanger 1, the microchannel reheat heat exchanger 2, the first branch pipe 7, the liquid manifold 4 of the branch pipe loop microchannel reheat heat exchanger-the third branch pipe 12-the fourth branch pipe 13-the liquid manifold 4 of the pre-cooling heat exchanger.

[0025] The benefits of the present invention are that the present technical solution sets two groups of three-way solenoid valves on the first branch liquid pipe and the second, third and fourth branch liquid pipes connected in conjunction therewith, and uses the start-stop three-way solenoid valve to change the flow circuit of the branch liquid pipe, making full use of the pipe diameter size of the branch liquid pipe flow circuit to change the flow rate of the refrigerant, thereby adjusting the heat exchange efficiency and reheating temperature rise of the dehumidification heat pipe, so as to solve the problems in the prior art such as the dehumidification heat pipe being unable to work under high temperature conditions, and at the same time adjusting and controlling the supply air temperature according to the requirements of different working conditions to achieve the best energy-saving effect under different dehumidification working conditions.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flow-adjustable microchannel dehumidification heat pipe, comprising a microchannel precooling heat exchanger, a microchannel reheating heat exchanger, gas manifolds disposed on the precooling heat exchanger and the microchannel reheating heat exchanger and interconnected, and liquid manifolds disposed below the precooling heat exchanger and the microchannel reheating heat exchanger and interconnected, characterized in that: The gas collecting pipe on the channel pre-cooling heat exchanger is externally connected to an outlet pipe, the gas collecting pipe on the microchannel reheat heat exchanger is externally connected to an inlet pipe, the outlet pipe and the inlet pipe are connected to each other through a first branch pipe, the liquid collecting pipe on the channel pre-cooling heat exchanger is externally connected to a liquid inlet pipe, the liquid collecting pipe on the microchannel reheat heat exchanger is externally connected to a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are connected to each other through a first branch pipe, a first three-way solenoid valve and a second three-way solenoid valve are connected to the first branch pipe, the second three-way solenoid valve is externally connected to a third branch pipe, the fourth liquid outlet pipe is externally connected to a second branch pipe, and the second branch pipe and the third branch pipe are connected to each other, a fourth branch pipe is externally connected to the first branch pipe, and the other end of the fourth branch pipe is connected to the third branch pipe.

2. The flow-adjustable microchannel dehumidification heat pipe according to claim 1, characterized in that: The left end of the first three-way solenoid valve is connected to the third liquid outlet pipe, the right end of the first three-way solenoid valve is connected to the second liquid inlet pipe, the front end of the first three-way solenoid valve is connected to the fourth liquid outlet pipe, and the third liquid outlet pipe and the second liquid inlet pipe are both connected to the first branch liquid pipe.

3. The flow-adjustable microchannel dehumidification heat pipe according to claim 1, characterized in that: The left end of the second three-way solenoid valve is connected to the first liquid outlet pipe, the front end of the first three-way solenoid valve is connected to the second liquid outlet pipe, the right end of the first three-way solenoid valve is connected to the first liquid inlet pipe, the first liquid outlet pipe and the first liquid inlet pipe are both connected to the first liquid branch pipe, the second liquid outlet pipe is connected to the third liquid branch pipe, and the other end of the fourth liquid branch pipe is placed at the rear end of the second three-way solenoid valve.

4. The flow-adjustable microchannel dehumidification heat pipe according to claim 1, characterized in that: The first three-way solenoid valve is placed at one end of the liquid outlet pipe, and the second three-way solenoid valve is placed at one end of the liquid inlet pipe.

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