CN108826554A - A kind of double multi-joint units of cold source heat pipe air conditioner - Google Patents

Abstract

A kind of double multi-joint units of cold source heat pipe air conditioner, including heat pipe end system, fluid reservoir, circulating pump, multiple groups parallel connection cold source system, temperature sensor and control module；The import of the circulating pump is connected to fluid reservoir；The outlet of the circulating pump is connected in the import of heat pipe end system, the outlet of heat pipe end system with fluid reservoir；The import of the cold source system of the multiple groups parallel connection is connected to fluid reservoir respectively with outlet；The heat pipe end system includes the heat pipe indoor unit of multiple groups parallel connection；Each group of heat pipe indoor unit includes heat pipe evaporator and corresponding electric expansion valve；Every group of cold source system includes natural cooling source and compressor cold source, natural cooling source and compressor cold source be it is parallel with one another, all groups of cold source systems later general imports in parallel are connected to the top of fluid reservoir, and general export is connected to fluid reservoir, there are three types of operational modes for the cold source system of whole device in this way, i.e.,：The mixed mode that compressor cold source mode, natural cooling source mode, compressor and natural cooling source use simultaneously.

Description

A dual cold source heat pipe air conditioner multi-connected unit

technical field

The present application relates to the technical field of refrigeration and air conditioning, in particular to a multi-unit air conditioner with dual cold source heat pipes.

Background technique

With the rapid development of my country's communication industry, the energy consumption and energy-saving problems of the computer room need to be solved urgently, and the new technology of using heat pipe technology in the air-conditioning and energy-saving of the communication computer room and the information center computer room, with its high efficiency, energy saving and green environmental protection, has triggered Widespread concern.

However, the cooling capacity of the heat pipe system is easily affected by the outdoor temperature of the computer room. When the outdoor temperature of the computer room is higher, the cooling capacity of the heat pipe system will be worse, that is, the temperature in the computer room that the heat pipe system can reduce is smaller; Especially when the temperature difference between the indoor and outdoor of the computer room is less than a certain value (such as 5°C), the heat pipe system may not be able to cool effectively. Therefore, it is difficult to effectively ensure that the temperature in the computer room can meet the temperature requirements of the equipment in the computer room by using the heat pipe system alone.

In the prior art, in order to solve this problem, the heat pipe system is usually combined with the conventional mechanical compression refrigeration air conditioner, so that when the outdoor temperature of the computer room is high, the conventional mechanical compression refrigeration air conditioner is used for cooling, providing suitable cooling for the equipment in the computer room. working temperature. However, there is also a major problem in the air-conditioning mode that uses this heat pipe system and the conventional mechanical compression refrigeration air-conditioning joint operation: if a single compressor is used for cooling, the system cannot be backed up; if dual compressors are used for cooling, it will cause compression. The uneven distribution of machine oil in the freezer will cause damage to the compressor and fail to achieve the effect of backup.

Therefore, how to design a cooling system that can not only improve the utilization rate of outdoor natural cooling sources, but also improve the overall performance and reliability of the unit, and then research and propose a better solution to ensure the normal and stable operation of data center or communication room equipment throughout the year device is a problem to be solved urgently in this field.

Contents of the invention

The purpose of the present invention is to overcome the problems existing in the above-mentioned prior art, and to provide a multi-connected air conditioner with dual cold sources and heat pipes, which realizes The device in the present invention can use the power heat pipe system as the end, and the natural cold source and mechanical refrigeration as the working mode of the cold source. While adapting to different outdoor environmental temperature conditions and satisfying the reliability and high efficiency of the annual indoor temperature control in the computer room, Extend the life of the device.

In order to achieve the above purpose, the technical solution of the present invention is: a multi-connected air conditioner with double cold source heat pipes, including a heat pipe end system, a liquid storage tank, a circulation pump, multiple sets of parallel cold source systems, temperature sensors and a control module; The inlet of the circulation pump is communicated with the liquid storage tank; the outlet of the circulation pump is communicated with the inlet of the heat pipe end system, and the outlet of the heat pipe end system is communicated with the liquid storage tank; the inlets and outlets of the multiple sets of parallel cold source systems are respectively It communicates with the liquid storage tank, wherein the inlets of multiple sets of parallel cold source systems are located on the top of the liquid storage tank; the heat pipe end system includes multiple sets of parallel heat pipe indoor units; each set of heat pipe indoor units includes a heat pipe evaporator and corresponding electronic The expansion valve, the electronic expansion valve is connected to the inlet of the heat pipe evaporator, so that the electronic expansion valves of all groups of heat pipe indoor units and the series branches of the heat pipe evaporator are connected in parallel to form a heat pipe end system; each group of cold source systems includes a natural cold source The natural cold source and the compressor cold source are connected in parallel. After all groups of cold source systems are connected in parallel, the total inlet is connected to the top of the liquid storage tank, and the total outlet is connected to the liquid storage tank. In this way, the cooling of the whole device The source system has three operating modes, namely: compressor cooling source mode, natural cooling source mode, and mixed mode in which the compressor and natural cooling source are used at the same time; the temperature sensor is used to detect the humidity difference inside and outside the machine room, and the signal input of the control module The terminal is connected with the signal output terminal of the temperature sensor, and the work of the heat pipe air conditioner is controlled according to the signal transmitted and recorded by the temperature sensor.

Further, the natural cold source of each group of cold source systems includes a heat pipe condenser, the inlet of the heat pipe condenser communicates with the top of the liquid storage tank, and the outlet of the heat pipe condenser communicates with the liquid storage tank.

Further, the cold source of the compressor includes an intermediate heat exchanger, a compressor, a compressor condenser and a first electronic expansion valve; the inlet of the heat pipe of the intermediate heat exchanger communicates with the top of the liquid storage tank, and the outlet It communicates with the liquid storage tank; the compressor circulation pipeline of the intermediate heat exchanger is connected between the compressor and the first electronic expansion valve.

Further, the intermediate heat exchanger is one of a plate heat exchanger, a shell-and-tube heat exchanger, a casing heat exchanger or a high-efficiency tank.

Further, the positions of the heat pipe condenser and the intermediate heat exchanger are higher than those of the liquid storage tank, so that the refrigerant condensed by the heat pipe condenser and the intermediate heat exchanger flows back to the liquid storage tank by gravity.

Further, the heat pipe condenser of the natural cold source and the compressor condenser of the compressor cold source system share a condenser fan, the compressor condenser and the heat pipe condenser are placed side by side, and the condenser fan is installed on the side of the compressor condenser On one side, the wind direction is from the heat pipe condenser to the compressor condenser, so that the outdoor air passes through the heat pipe condenser and the compressor condenser to exchange heat with it.

Further, the circulation pump is a fluorine pump or a two-phase flow pump.

Further, all the compressors are inverter compressors.

Compared with the prior art, the present invention has the following advantages:

1. Through the more complete structural design of the heat pipe terminal system and the cold source system and the more reasonable refrigeration method design, the device in the present invention can use the power heat pipe system as the end, and the natural cold source and compressor refrigeration as the working mode of the cold source , which solves the problem of extending the service life of the device and high energy consumption while adapting to different outdoor environmental temperature conditions and satisfying the reliability and high efficiency of the indoor temperature control in the computer room throughout the year;

2. Compressor refrigeration adopts variable frequency compressors. According to cooling capacity requirements, all compressors work together at low frequency, medium frequency or high frequency, and back up each other to reduce the number of compressor starts and stops, improve refrigeration efficiency, and prolong service life;

3. In addition, through the design of the throttling device at the end of the heat pipe, the optimal liquid filling rate of the refrigerant in each heat pipe end system can be realized to operate, reduce energy consumption, improve efficiency, and obtain a good energy-saving effect.

Description of drawings

Fig. 1 is a structural schematic diagram of the first embodiment of the heat pipe air conditioner of the present invention.

Fig. 2 is a schematic structural view of the second embodiment of the heat pipe air conditioner of the present invention.

Fig. 3 is a structural schematic diagram of a third embodiment of the heat pipe air conditioner of the present invention.

Fig. 4 is a structural schematic diagram of a fourth embodiment of the heat pipe air conditioner of the present invention.

In the figure: 100, end system of heat pipe; 101, first evaporator of heat pipe; 102, second evaporator of heat pipe; 103, third evaporator of heat pipe; 104, fourth evaporator of heat pipe; 10N, Nth evaporator of heat pipe; 200 , cold source system; 210, natural cold source; 220, compressor cold source; 2, heat pipe condenser; 3, compressor condenser; 4, intermediate heat exchanger; 5, liquid storage tank; 601, evaporator first Fan; 602, the second fan of the evaporator; 603, the third fan of the evaporator; 604, the fourth fan of the evaporator; 60N, the Nth fan of the evaporator; 7, the condenser fan; 71, the heat pipe condenser fan; 72, the compression 8. Circulation pump; 901. The first electronic expansion valve; 902. The second electronic expansion valve; 903. The third electronic expansion valve; 904. The fourth electronic expansion valve; 90N. The Nth electronic expansion valve; 10. Compressor; 11. Electronic expansion valve for compressor.

Detailed ways

The present invention is further described below with embodiment, and following description is only preferred embodiment of the present invention, is not intended to limit the present invention, although with reference to foregoing embodiment the present invention has been described in detail, for those skilled in the art In other words, it is still possible to modify the technical solutions described in the foregoing embodiments, or to perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Specific implementation mode one

Please refer to FIG. 1 as shown in FIG. 1 , a multi-unit air conditioner with dual cold source heat pipes of the present invention includes a heat pipe end system 100, a liquid storage tank 5, a circulation pump 8, a cold source system 200, a temperature sensor and a control module. The inlet of the circulation pump 8 communicates with the liquid storage tank 5, and the inlet goes deep into the bottom of the liquid storage tank 5; the outlet of the circulation pump 8 communicates with the inlet of the heat pipe end system 100, and the outlet of the heat pipe end system 100 is connected with the liquid storage tank 5. The tank 5 communicates; the inlet and outlet of the cold source system 200 communicate with the liquid storage tank 5 respectively, wherein the inlet of the cold source system 200 is located at the top of the liquid storage tank 5 .

The heat pipe terminal system 100 includes N groups of parallel heat pipe indoor units, each group of heat pipe indoor units includes a one-to-one corresponding heat pipe evaporator, evaporator fan and electronic expansion valve, wherein N is a natural number greater than or equal to 2; each The electronic expansion valves of the group heat pipe indoor units are connected in series at the inlet of the heat pipe evaporator; all heat pipe indoor units are connected in parallel, that is, the electronic expansion valves in all heat pipe indoor units are connected in parallel with the corresponding heat pipe evaporator series branches to form a heat pipe end system 100 evaporation circuits; the evaporator fans of each group of heat pipe indoor units are installed on one side of the corresponding heat pipe evaporator to promote heat exchange between the indoor air and the heat pipe evaporator.

In this embodiment, N=4, that is, the heat pipe terminal system 100 includes four sets of heat pipe indoor units connected in parallel; Electronic expansion valves 901~904, the electronic expansion valves 901~904 of each group of heat pipe indoor units are connected to the inlets of the corresponding heat pipe evaporators 101~104; the evaporator fans 601~604 of each group are installed on the corresponding heat pipe evaporators One side of 101-104 is used to promote heat exchange between indoor air and heat pipe evaporators 101-104.

The cold source system 200 includes a natural cold source 210 and a compressor cold source 220. After the natural cold source 210 and the compressor cold source 220 are connected in parallel, the total inlet is connected to the top of the liquid storage tank 5, and the total outlet is connected to the top of the liquid storage tank 5. connected.

Described natural cold source 210 comprises heat pipe condenser 2 and heat pipe condenser fan 71, and the inlet of heat pipe condenser 2 is communicated with the top of liquid storage tank 5, and the outlet of heat pipe condenser 2 is communicated with liquid storage tank; Heat pipe condenser fan 71 Installed on one side of the heat pipe condenser 2, it is used to promote the heat exchange between the natural cooling source and the heat pipe condenser 2.

The compressor cold source 220 includes an intermediate heat exchanger 4, a compressor 10, a compressor condenser 3, a compressor condenser fan 72, and a compressor electronic expansion valve 11. The intermediate heat exchanger 4, the compressor 10, The compressor condenser 3 and the compressor electronic expansion valve 11 are connected in accordance with the above sequence to form an independent cycle compression cold source system; the compressor condenser fan 72 is installed on one side of the compressor condenser 3 to promote the condensation of the compressor The device 3 dissipates heat to the environment.

The intermediate heat exchanger 4 is a kind of plate heat exchanger, shell and tube heat exchanger, casing heat exchanger or high-efficiency tank; the heat pipe pipeline of the intermediate heat exchanger 4 is used as the condenser of the heat pipe end system 100, and its The inlet is communicated with the top of the liquid storage tank 5, and the outlet is communicated with the liquid storage tank 5; the compressor circulation line of the intermediate heat exchanger 4 is used as the evaporator of the compressor cold source 220, which is connected to the compressor 10 and the compressor electronic expansion Between the valves 11 , the heat exchange of the compressor cold source 220 through the intermediate heat exchanger 4 is realized to provide cooling capacity for the heat pipe evaporator 1 of the heat pipe end system 100 .

The compressor 10 is an inverter compressor.

The circulation pump 8 is a fluorine pump or a two-phase flow pump.

The installation positions of the heat pipe condenser 2 and the intermediate heat exchanger 4 are higher than the position of the liquid storage tank 5, so that the gaseous refrigerant inside the liquid storage tank 5 can naturally ascend into the heat pipe condenser 2 or the intermediate heat exchanger 4. The heat pipes dissipate heat, and the refrigerant condensed in the heat pipes of the heat pipe condenser 2 or the intermediate heat exchanger 4 flows back to the liquid storage tank 5 by gravity.

The installation positions of the heat pipe condenser 2 and the intermediate heat exchanger 4 are located at a place greater than or equal to 200 mm above the liquid storage tank 5 .

The installation positions of the heat pipe condenser 2 and the intermediate heat exchanger 4 are located at a position greater than or equal to 300 mm above the liquid storage tank 5 .

The temperature sensor is used to detect the humidity difference inside and outside the computer room. The signal input terminal of the control module is connected to the signal output terminal of the temperature sensor, and the work of the heat pipe air conditioner is controlled according to the signal transmitted and recorded by the temperature sensor, that is, through the judgment and calculation of the temperature Finally, control the openings of the electronic expansion valve 11 of the compressor and the electronic expansion valves 901 to 904, and the speeds of the heat pipe condenser fan 71, the compressor condenser fan 72, and the compressor 10; so that the cold source system of the whole device has three types of operation Modes, namely: compressor cooling source mode, natural cooling source mode, mixed mode in which both compressor and natural cooling source are used at the same time. The three modes can maximize the use of outdoor cold sources, reduce the running time of the compressor, and greatly improve the annual energy efficiency of the refrigeration system.

When the outdoor weather is cold in winter, the indoor and outdoor temperature difference is large, the compressor 10 stops working, and the heat pipe terminal system 100 uses the outdoor natural cooling source 210 to cool down the room. In this working mode, the heat pipe heat exchangers 101~104 of all heat pipe indoor units The liquid refrigerant working medium inside absorbs the heat in the room and vaporizes into steam, and the vaporized refrigerant working medium and part of the liquid refrigerant working medium that has not been vaporized are directly sent into the liquid storage tank 5, and the gas-liquid separation is carried out in the liquid storage tank 5; due to the heat pipe There is a condensation process in the condenser 2, and the gaseous refrigerant working medium in the liquid storage tank 5 naturally goes up into the heat pipe condenser 2, and releases heat through the outdoor natural cold air, thereby condensing into liquid and flowing back to the liquid storage tank 5 by gravity; The liquid refrigerant in the liquid tank 5 flows back to the corresponding heat pipe evaporators 101 - 104 through the electronic expansion valves 901 - 904 respectively under the action of the circulation pump 8 .

In hot outdoor weather such as summer, when the temperature difference between indoor and outdoor is small or negative, the heat pipe terminal system 100 uses the compressor cooling source 220 alone to cool down the room. In this working mode, the frequency conversion of the compressor 10 is turned on, and the heat pipes of each heat pipe indoor unit evaporate The liquid refrigerant working medium in the devices 101~104 absorbs indoor heat and vaporizes into steam, and the vaporized refrigerant working medium and part of the liquid refrigerant working medium that is not vaporized are directly sent to the liquid storage tank 5, and the gas-liquid process is carried out in the liquid storage tank 5. separation; due to the condensation process in the heat pipe line of the intermediate heat exchanger 4, the gaseous refrigerant working medium in the liquid storage tank 5 naturally goes up into the heat pipe line of the intermediate heat exchanger 4 and the refrigerant in the compressor circulation line for heat Exchange and release heat, thereby condensing into liquid and flowing into the liquid storage tank 5 by gravity; the liquid refrigerant working medium in the liquid storage tank 5 is respectively throttled back to the corresponding heat pipe by the electronic expansion valve 901~904 under the action of the circulation pump 8 The evaporators 101~104; while the liquid refrigerant in the circulation pipeline of the compressor in the intermediate heat exchanger 4 absorbs the heat released by the refrigerant in the heat pipe pipeline and is vaporized into steam, which is sucked into the compressor 10, and the compressed high-pressure gas flows into the compressor Condenser 3 condenses into liquid, and re-flows into the compressor circulation line of intermediate heat exchanger 4 through compressor electronic expansion valve 11 .

When the outdoor weather changes in the spring and autumn transitional seasons, the compressor is turned on, and the heat pipe terminal system 100 simultaneously uses the outdoor natural cold source 210 and the compressor cold source 220 to cool down the room. In this working mode, the liquid refrigerant in the heat pipe evaporators 101~104 of each group of heat pipe indoor units absorbs indoor heat and vaporizes into steam, and the vaporized refrigerant and part of the liquid refrigerant that is not vaporized are directly sent to the storage tank. Liquid tank 5, the gas-liquid separation is carried out in the liquid storage tank 5; the gaseous refrigerant working medium in the liquid storage tank 5 naturally rises directly into the heat pipe condenser 2, releases heat through the outdoor natural cold air, and condenses into a liquid that flows in by gravity In the liquid storage tank 5; another part of the steam directly enters the heat pipe line of the intermediate heat exchanger 4 to exchange heat with the refrigerant in the compressor circulation line, releases heat, and condenses into a liquid that also flows into the liquid storage tank 5 by gravity; The liquid refrigerant in the liquid storage tank 5 is throttled back to the corresponding heat pipe evaporators 101-104 through the electronic expansion valves 901-904 under the action of the circulation pump 8; while the liquid in the circulation line of the intermediate heat exchanger 4 compressor The refrigerant absorbs the heat released by the refrigerant in the heat pipe pipeline and is vaporized into steam, which is sucked into the compressor 10, and the compressed high-pressure gas flows into the compressor condenser 3, condenses into a liquid, and flows into the intermediate converter through the electronic expansion valve 11 of the compressor. Heater 4 compressor circulation lines.

Specific implementation mode two

Please refer to Fig. 2, in this embodiment, the heat pipe condenser 2 of the natural cold source and the compressor condenser 3 of the compressor cold source share a condenser fan 7, the compressor condenser 3 and the heat pipe condenser 2 Placed side by side, the condenser fan 7 is installed on one side of the compressor condenser 3, and the wind direction is from the heat pipe condenser 2 to the compressor condenser 3, so that the outdoor air passes through the heat pipe condenser 2 and the compressor condenser 3 to exchange heat with it . All the other parts are the same as the first embodiment, and the working method is also the same.

Specific implementation mode three

Please refer to FIG. 3, in this embodiment, the heat pipe terminal system 100 includes N sets of parallel heat pipe indoor units, where N is a natural number greater than or equal to 2; each set of heat pipe indoor units includes one-to-one corresponding heat pipe evaporators 101~10N and electronic expansion valves 901~90N, the electronic expansion valves 901~90N of each group of heat pipe indoor units are connected to the inlets of corresponding heat pipe evaporators 101~10N; all heat pipe indoor units are connected in parallel as shown in Figure 3 to form a heat pipe end system 100 The total inlet of the heat pipe end system 100 is connected to the outlet of the circulation pump 8, and the outlet of the heat pipe end system 100 is connected to the liquid storage tank 5.

The heat pipe evaporators 101~10N of each group of heat pipe indoor units are equipped with evaporator fans 601~60N, which are used to promote heat exchange between the indoor air and the heat pipe evaporators 101~10N.

The cold source system of the heat pipe air conditioner multi-connected unit also includes L groups (where L is greater than or equal to 2, and L is a natural number) parallel cold source systems 200; each group of cold source systems 200 includes a natural cold source 210 and a compressor cold source 220, After the natural cold source 210 and the compressor cold source 220 of each group of cold source system 200 are connected in parallel, the total inlet thereof communicates with the top of the liquid storage tank 5 , and the total outlet communicates with the liquid storage tank 5 .

The structures and components of the natural cooling source 210 and the compressor cooling source 220 of each group of cooling source system are the same as in Embodiment 1, and the working method is also the same.

The working principle of the heat pipe multi-connected unit in this embodiment is:

When the outdoor weather is cold in winter, the indoor and outdoor temperature difference is large, the compressors 10 of all groups of cold source systems stop working, and the heat pipe end system 100 uses the outdoor natural cold source 210 of all groups of cold source systems to cool down the room; in this working mode , the liquid refrigerant working medium in the heat pipe evaporator 101~10N of all heat pipe indoor units absorbs indoor heat and vaporizes into steam, and the vaporized refrigerant working medium and part of the liquid refrigerant working medium that is not vaporized are directly sent to the liquid storage tank 5. Gas-liquid separation is carried out in the liquid storage tank 5; due to the condensation process in the heat pipe condenser 2 of each group of cold source systems, the gaseous refrigerant working medium in the liquid storage tank 5 naturally ascends into the heat pipe condenser 2 of each group of cold source systems, The heat is released by the outdoor natural cold air, so that the condensed liquid flows back into the liquid storage tank 5 by gravity; Corresponding heat pipe evaporators 101-104.

When it is in hot outdoor weather such as summer, the temperature difference between indoor and outdoor is small or negative, and the heat pipe end system 100 uses all compressor cold sources 220 to cool down the room. In this working mode, the compressor 10 is turned on, and all compressors 10 The corresponding cooling capacity is provided through frequency conversion; the liquid refrigerant working medium in the heat pipe evaporator 101~10N of each heat pipe indoor unit absorbs indoor heat and is vaporized into steam, and the vaporized refrigerant working medium and part of the liquid refrigerant working medium that has not been vaporized are directly absorbed into the liquid storage tank 5, and the gas-liquid separation is carried out in the liquid storage tank 5; because there is a condensation process in the heat pipes of all the intermediate heat exchangers 4, the gaseous refrigerant working medium in the liquid storage tank 5 naturally goes up into each group of cooling The heat pipe line of the intermediate heat exchanger 4 of the source system 200 exchanges heat with the refrigerant in the compressor circulation line to release heat, thereby condensing into liquid and flowing into the liquid storage tank 5 by gravity; the liquid in the liquid storage tank 5 Under the action of the circulating pump 8, the refrigerant is throttled back to the corresponding heat pipe evaporator 101~10N through the electronic expansion valve 901~90N; The liquid refrigerant absorbs the heat released by the refrigerant in the heat pipe pipeline and vaporizes into vapor, which is sucked into the compressor 10, and the compressed high-pressure gas flows into the compressor condenser 3, condenses into a liquid, and flows into the middle again through the electronic expansion valve 11 of the compressor. The compressor circulation line of the heat exchanger 4.

When the outdoor weather changes in the transitional season of spring and autumn, the compressor 10 is turned on, and all compressors 10 provide corresponding cooling capacity through frequency conversion as required; the heat pipe end system 100 uses all outdoor natural cooling sources 210 and mechanical cooling sources 220 to cool down the room. In this working mode, the liquid refrigerant in the heat pipe evaporator 101~10N of each group absorbs indoor heat and vaporizes into steam, and the vaporized refrigerant and part of the liquid refrigerant that has not been vaporized are directly sent to the liquid storage tank 5 , the gas-liquid separation is carried out in the liquid storage tank 5; a part of the gaseous refrigerant in the liquid storage tank 5 naturally goes up into the heat pipe condenser 2 of each group of cold source systems, and releases heat through the outdoor natural cold air, thereby condensing into a liquid. The gravity flows back into the liquid storage tank 5; another part of the steam in the liquid storage tank 5 enters each intermediate heat exchanger 4 of the cold source system 200. The heat pipe pipeline exchanges heat with the refrigerant in the compressor circulation pipeline to release heat. , the condensed liquid also flows into the liquid storage tank 5 by gravity; the liquid refrigerant working medium in the liquid storage tank 5 is throttled back to the corresponding heat pipe evaporator 101~ by the electronic expansion valve 901~90N under the action of the circulating pump 8 10N; while the liquid refrigerant in each intermediate heat exchanger 4 compressor circulation pipeline of the cold source system 200 absorbs the heat released by the refrigerant in the heat pipe pipeline and vaporizes into steam, which is sucked into the compressor 10, and the compressed high-pressure gas flows into The compressor condenser 3 is condensed into a liquid, and flows into the intermediate heat exchanger 4 and the compressor circulation line through the compressor electronic expansion valve 11 again.

Specific implementation mode four

Please refer to shown in Figure 4, in this embodiment, the heat pipe condenser 2 of the natural cooling source of each group of cooling source system and the compressor condenser 3 of the compressor cooling source share a condenser fan 7, and the compressor condenser 3 and The heat pipe condenser 2 is placed side by side, the condenser fan 7 is installed on one side of the compressor condenser 3, and the wind direction is from the heat pipe condenser 2 to the compressor condenser 3, so that the outdoor air passes through the heat pipe condenser 2 and the compressor condenser in sequence 3 exchange heat with it. The rest are the same as the third embodiment, and the working method is also the same.

It should be noted that, for the foregoing embodiments, for the sake of simple description, they are all expressed as components or combinations of components, but those skilled in the art should know that the present application is not limited by the names of the components described, because According to the present application, some components that can realize the functions of the above-mentioned corresponding components are also within the protection scope of the present application. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the components involved are not necessarily necessary for this application.

The serial numbers of the above embodiments of the present application are for description only, and do not represent the advantages and disadvantages of the embodiments.

In the above-mentioned embodiments of the present application, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

The above description is only the preferred embodiment of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, some improvements and modifications can also be made. These improvements and modifications are also It should be regarded as the protection scope of this application.

Claims (8)

1. a kind of double multi-joint units of cold source heat pipe air conditioner, which is characterized in that including heat pipe end system, fluid reservoir, circulating pump, more Group cold source system, temperature sensor and control module in parallel；The import of the circulating pump is connected to fluid reservoir；The circulating pump Outlet in the import of heat pipe end system, the outlet of heat pipe end system is connected to fluid reservoir；The multiple groups parallel connection The import of cold source system is connected to fluid reservoir respectively with outlet, and wherein the import of the cold source system of multiple groups parallel connection is located at fluid reservoir Top；The heat pipe end system includes the heat pipe indoor unit of multiple groups parallel connection；Each group of heat pipe indoor unit includes heat pipe evaporator With corresponding electric expansion valve, the electric expansion valve is connected to the import of heat pipe evaporator, all groups of heat pipe indoor units in this way Electric expansion valve and heat pipe evaporator series arm is parallel with one another forms heat pipe end system；Every group of cold source system includes certainly Right cold source and compressor cold source, natural cooling source and compressor cold source be it is parallel with one another, all groups of cold source systems are in parallel later General import is connected to the top of fluid reservoir, and general export is connected to fluid reservoir, and there are three types of operations for the cold source system of such whole device Mode, i.e.,：The mixed mode that compressor cold source mode, natural cooling source mode, compressor and natural cooling source use simultaneously；The temperature Degree sensor is used to detect the psychrometric difference inside and outside computer room, the signal input part of control module and the signal output end of temperature sensor It is connected, according to the work for the signal control heat pipe air conditioner device that temperature sensor transmission is included.

2. a kind of double multi-joint units of cold source heat pipe air conditioner according to claim 1, which is characterized in that every group of cold source system The natural cooling source of system includes heat pipe condenser, and the import of heat pipe condenser is connected to the top of fluid reservoir, and heat pipe condenser goes out Mouth is connected to fluid reservoir.

3. a kind of double multi-joint units of cold source heat pipe air conditioner according to claim 1, which is characterized in that the compressor cold source Including Intermediate Heat Exchanger, compressor, compressor condenser and the first electric expansion valve；The heat pipe pipeline of the Intermediate Heat Exchanger Import is connected to the top of fluid reservoir, and outlet is connected to fluid reservoir；The compressor cycle piping connection of Intermediate Heat Exchanger is being compressed Between machine and the first electric expansion valve.

4. a kind of double multi-joint units of cold source heat pipe air conditioner according to claim 3, which is characterized in that the Intermediate Heat Exchanger It is one of plate heat exchanger, shell-and-tube heat exchanger, double-tube heat exchanger or high-efficiency tank.

5. a kind of double multi-joint units of cold source heat pipe air conditioner according to claim 2 or 3, which is characterized in that the heat pipe cold The position of condenser and Intermediate Heat Exchanger is above the position of fluid reservoir, realizes the refrigeration of heat pipe condenser and Intermediate Heat Exchanger condensation Working medium is by gravity reflux to fluid reservoir.

6. a kind of double multi-joint units of cold source heat pipe air conditioner according to claim 2 or 3, which is characterized in that described naturally cold The compressor condenser of the heat pipe condenser in source and compressor cold source system shares a condenser fan, compressor condenser and Heat pipe condenser is placed side by side, and condenser fan is installed on the side of compressor condenser, and wind direction is from heat pipe condenser to pressure Contracting machine condenser, makes that outdoor air passes sequentially through heat pipe condenser and compressor condenser exchanges heat with it.

7. a kind of double multi-joint units of cold source heat pipe air conditioner according to claim 1, which is characterized in that the circulating pump is fluorine Pump or Two-phase fluid pump.

8. a kind of double multi-joint units of cold source heat pipe air conditioner according to claim 1, which is characterized in that all compressors It is frequency-changeable compressor.