阅读说明：本技术 一种热管系统制冷剂流量的控制装置 (Control device for refrigerant flow of heat pipe system ) 是由 瞿红 *** 于 2018-06-21 设计创作，主要内容包括：本发明涉及热管换热技术领域,尤其涉及一种热管系统制冷剂流量的控制装置,包括室外冷凝器、储液器、电子膨胀阀、室内蒸发器、流量控制器和信号采集器,热管系统中的制冷剂通过室外冷凝器和室外的低温空气热交换,冷凝为过冷制冷剂液体进入储液器,储液器中的过冷制冷剂液体通过电子膨胀阀进入室内蒸发器,过冷制冷剂液体在室内蒸发器中吸热后蒸发为过热气体,将室内中的热量输送到室外冷凝器。本发明通过无级调节热管系统内制冷剂的流量,可以解决热管系统蒸发器内制冷剂的液位波动,提升热管系统的运行效率,实现机房温度精确控制,通过电子膨胀阀调节控制适当的蒸发温度,避免室内蒸发器表面的凝露。(The invention relates to the technical field of heat pipe heat exchange, in particular to a control device for the flow of a refrigerant of a heat pipe system, which comprises an outdoor condenser, a liquid storage device, an electronic expansion valve, an indoor evaporator, a flow controller and a signal collector, wherein the refrigerant in the heat pipe system is subjected to heat exchange with outdoor low-temperature air through the outdoor condenser and condensed into supercooled refrigerant liquid which enters the liquid storage device, the supercooled refrigerant liquid in the liquid storage device enters the indoor evaporator through the electronic expansion valve, the supercooled refrigerant liquid absorbs heat in the indoor evaporator and then is evaporated into superheated gas, and the heat in the room is transferred to the outdoor condenser. The invention can solve the liquid level fluctuation of the refrigerant in the evaporator of the heat pipe system by steplessly adjusting the flow of the refrigerant in the heat pipe system, improves the operating efficiency of the heat pipe system, realizes the accurate control of the temperature of the machine room, adjusts and controls the proper evaporation temperature through the electronic expansion valve, and avoids the condensation on the surface of the indoor evaporator.)

1. A control device for refrigerant flow of a heat pipe system, characterized in that: the heat pipe system comprises an outdoor condenser (1), a liquid storage device (2), an electronic expansion valve (3), an indoor evaporator (4), a flow controller (5) and a signal collector (6), wherein refrigerant in the heat pipe system is subjected to heat exchange with low-temperature air of the outdoor condenser (1) and an outdoor part (10) to be condensed into supercooled refrigerant liquid to enter the liquid storage device (2), the supercooled refrigerant liquid in the liquid storage device (2) enters the indoor evaporator (4) through the electronic expansion valve (3), the supercooled refrigerant liquid is evaporated into superheated gas after absorbing heat in the indoor evaporator (4), heat in a room (9) is conveyed to the outdoor condenser (1), the electronic expansion valve (3) is installed at an inlet of the indoor evaporator (4), and the flow controller (5) collects data information of the indoor evaporator (4) through the signal collector (6), the flow controller (5) adjusts the opening degree of the electronic expansion valve (3) according to the data information of the indoor evaporator (4), thereby adjusting the flow of the refrigerant in the heat pipe system and the evaporation temperature of the indoor evaporator (4).

2. A heat pipe system refrigerant flow control device as claimed in claim 1, wherein: the indoor evaporator (4) is one or more, and an electronic expansion valve (3) is arranged at the liquid inlet of each indoor evaporator (4).

3. A heat pipe system refrigerant flow control device as claimed in claim 2, wherein: the control device for the refrigerant flow of the heat pipe system further comprises a refrigerant liquid pipe (7), and the supercooled refrigerant liquid enters the accumulator (2) through the refrigerant liquid pipe (7).

4. A heat pipe system refrigerant flow control device as claimed in claim 2, wherein: the control device for the refrigerant flow of the heat pipe system also comprises a refrigerant gas pipe (8), and the superheated gas is conveyed to the outdoor condenser (1) through the refrigerant gas pipe (8).

Technical Field

The invention relates to the technical field of heat pipe heat exchange, in particular to a control device for the flow of a refrigerant of a heat pipe system.

Background

The heat pipe is a heat transfer part with high heat conductivity, transfers heat through evaporation and condensation of a refrigeration working medium in the totally-enclosed vacuum heat exchanger, and has a series of advantages of extremely high heat transfer performance, good isothermal performance, extremely low failure rate, capability of randomly changing heat transfer areas of indoor and outdoor cold and hot sides to adapt to different loads, capability of transferring heat remotely, capability of controlling temperature and the like. However, the heat pipe heat exchange system in the prior art is not provided with a refrigerant flow control device, and under the working condition that the temperature difference of the cold end and the hot end of the heat pipe system is large in change, the liquid level of the refrigerant in the evaporator of the heat pipe system fluctuates, so that the heat exchange efficiency of the heat pipe system is influenced; the existing data machine room is usually designed by adopting a high-density machine cabinet, the heat productivity is large, the cooling capacity of a heat pipe system is configured according to the design load of the machine room when the machine room is built, in the actual operation engineering, the load of the machine room at the initial stage is small, and under the condition of large indoor and outdoor temperature difference, the local supercooling of the machine room can be caused, even condensed water can be generated on the surface of a heat pipe evaporator, and the accurate control on the temperature of the machine room cannot be realized.

Disclosure of Invention

The invention provides a control device for the flow of a refrigerant of a heat pipe system, which can solve the problem of liquid level fluctuation of the refrigerant in an evaporator of the heat pipe system, improve the operating efficiency of the heat pipe system, realize accurate control of the temperature of a machine room and avoid condensation on the surface of an indoor evaporator.

In order to realize the purpose of the invention, the adopted technical scheme is as follows: a control device for the flow rate of refrigerant in heat pipe system is composed of outdoor condenser, liquid accumulator, electronic expansion valve, the heat pipe system comprises an indoor evaporator, a flow controller and a signal collector, wherein a refrigerant in the heat pipe system exchanges heat with outdoor low-temperature air through an outdoor condenser, the refrigerant is condensed into supercooled refrigerant liquid and enters a liquid storage device, the supercooled refrigerant liquid in the liquid storage device enters the indoor evaporator through an electronic expansion valve, the supercooled refrigerant liquid absorbs heat in the indoor evaporator and is evaporated into superheated gas, the heat in the room is conveyed to the outdoor condenser, the electronic expansion valve is installed at an inlet of the indoor evaporator, the flow controller collects data information of the indoor evaporator through the signal collector, and the flow controller adjusts the opening degree of the electronic expansion valve according to the data information of the indoor evaporator, so that the flow of the refrigerant in the heat pipe system and the evaporation temperature of the indoor evaporator.

As an optimized scheme of the invention, one or more indoor evaporators are provided, and an electronic expansion valve is arranged at an inlet of each indoor evaporator.

As an optimized scheme of the invention, the control device for the refrigerant flow of the heat pipe system further comprises a refrigerant liquid pipe, and the supercooled refrigerant liquid enters the accumulator through the refrigerant liquid pipe.

As an optimized scheme of the invention, the control device for the refrigerant flow of the heat pipe system further comprises a refrigerant gas pipe, and superheated gas is conveyed to the outdoor condenser through the refrigerant gas pipe.

The invention has the positive effects that: the invention can be applied to the construction or energy-saving reconstruction of communication machine rooms, computer machine rooms, laboratories, special factory buildings and other environments, has no outdoor air entering, does not need to filter the outdoor air, and has small maintenance amount. During operation, no water enters the machine room, and the safety of the machine room is guaranteed. The indoor unit has the advantages of ceiling type, cabinet type upper air supply, cabinet type under-floor air supply and the like, and can solve the problems of local overheating, small holes on the wall body and the like;

2) the invention can solve the liquid level fluctuation of the refrigerant in the evaporator of the heat pipe system by steplessly adjusting the flow of the refrigerant in the heat pipe system, improves the operating efficiency of the heat pipe system, realizes the accurate control of the temperature of the machine room, adjusts and controls the proper evaporation temperature through the electronic expansion valve, and avoids the condensation on the surface of the indoor evaporator.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is an overall structural view of the present invention.

Wherein: 1. the system comprises an outdoor condenser, 2, a liquid storage device, 3, an electronic expansion valve, 4, an indoor evaporator, 5, a flow controller, 6, a signal collector, 7, a refrigerant liquid pipe, 8, a refrigerant gas pipe, 9, indoor and 10 and outdoor.

Detailed Description

As shown in fig. 1, the present invention discloses a control device for refrigerant flow of a heat pipe system, comprising an outdoor condenser 1, a liquid reservoir 2, an electronic expansion valve 3, an indoor evaporator 4, a flow controller 5 and a signal collector 6, wherein the refrigerant in the heat pipe system is condensed into a supercooled refrigerant liquid by heat exchange between the outdoor condenser 1 and low-temperature air of an outdoor 10, the supercooled refrigerant liquid enters the liquid reservoir 2, the supercooled refrigerant liquid in the liquid reservoir 2 enters the indoor evaporator 4 through the electronic expansion valve 3, the supercooled refrigerant liquid is evaporated into a superheated gas after absorbing heat in the indoor evaporator 4, and the heat in an indoor 9 is transferred to the outdoor condenser 1, the electronic expansion valve 3 is installed at an inlet of the indoor evaporator 4, the flow controller 5 collects data information of the indoor evaporator 4 through the signal collector 6, the flow controller 5 adjusts the opening degree of the electronic expansion valve 3 according to the data information of, thereby adjusting the flow rate of the refrigerant in the heat pipe system and the evaporation temperature of the indoor evaporator 4. The outdoor condenser 1, the liquid storage device 2, the electronic expansion valve 3 and the indoor evaporator 4 form a loop heat pipe heat exchange system. The signal collector 6 collects data information of the indoor evaporator 4, the flow controller 5 collects the data information of the indoor evaporator 4 through the signal collector 6, and the flow controller 5 sends an adjusting instruction to the electronic expansion valve 3 according to preset logic. Wherein, the data information of the indoor evaporator 4 collected by the signal collector 6 comprises the data information of the evaporation temperature, the humidity and the steam volume.

One or more indoor evaporators 4 are provided, and an electronic expansion valve 3 is arranged at an inlet of each indoor evaporator 4. The flow of the heat pipe system refrigerant is steplessly adjusted by controlling (opening or closing) through the electronic expansion valve 3, the liquid level of the refrigerant in the indoor evaporator 4 is controlled, the temperature of the machine room is accurately controlled, and the problem of local overheating or supercooling is solved. The proper evaporation temperature is adjusted and controlled by the electronic expansion valve 3, and condensation and water on the surface of the indoor evaporator 4 are prevented.

The control device for the refrigerant flow of the heat pipe system further comprises a refrigerant liquid pipe 7, and the supercooled refrigerant liquid enters the accumulator 2 through the refrigerant liquid pipe 7.

The control device for the refrigerant flow of the heat pipe system also comprises a refrigerant gas pipe 8, and superheated gas is conveyed to the outdoor condenser 1 through the refrigerant gas pipe 8.

When the running condition of the heat pipe system is met, the refrigerant in the heat pipe system exchanges heat with outdoor low-temperature air through the outdoor condenser 1 and is condensed into supercooled refrigerant liquid; returns to the liquid accumulator 2 through the refrigerant liquid pipe 7 by gravity; the supercooled refrigerant liquid in the liquid storage device 2 enters the indoor evaporator 4 through the electronic expansion valve 3 through the liquid pipe, exchanges heat with indoor high-temperature air, evaporates into superheated gas after absorbing heat, takes away indoor heat, and is conveyed to the outdoor condenser 1 through the refrigerant air pipe 8, so that the whole heat pipe refrigeration cycle is completed. In the operation process, the flow controller 5 collects the parameter information of the indoor evaporator 4 through the signal collector 6, and according to the set logic relationship, the opening degree of the electronic expansion valve 3 is subjected to stepless regulation, the flow of the refrigerant is controlled, and the accurate control of the temperature of the machine room is realized.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.