CN215113503U - Refrigerating system - Google Patents

Abstract

The application provides a refrigerating system, relates to heat dissipation technical field, can solve the poor and inefficiency problem of current refrigerating system's precision. The refrigeration system includes: the system comprises a supply pipe, a return pipe and a plurality of refrigeration components; each refrigeration assembly includes: the refrigerator comprises a closed box body, a first refrigerant and a second refrigerant, wherein the first refrigerant is filled in the closed box body; the condenser is positioned in the closed box body and is positioned above the liquid level of the first refrigerant; the liquid inlet pipe is connected between the supply pipe and the inlet of the condenser; the liquid outlet pipe is connected between the outlet of the condenser and the return pipe; the first valve group is arranged on the liquid inlet pipe and/or the liquid return pipe.

Description

Refrigerating system

Technical Field

The application relates to the technical field of heat dissipation, in particular to a refrigerating system.

Background

In the immersion type liquid cooling technology, an insulating refrigerant is used for cooling electric equipment, and the latent heat of vaporization when the refrigerant boils can be used for heat dissipation according to the phase change heat exchange principle. However, at present, an immersion type liquid cooling system is usually provided with only one cooling box body, and all electric equipment is placed in the cooling box body, so that independent refrigeration according to refrigeration demands of different electric equipment cannot be realized, the refrigeration efficiency is low, and the precision is poor. In addition, the refrigeration power of the electric equipment with low refrigeration demand cannot be reduced, so that energy waste is caused.

SUMMERY OF THE UTILITY MODEL

The application provides a refrigerating system to solve the problem that current refrigerating system's precision is poor and inefficiency.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, the present application provides a refrigeration system. The refrigeration system includes: the system comprises a supply pipe, a return pipe and a plurality of refrigeration components; each refrigeration assembly includes: the refrigerator comprises a closed box body, a first refrigerant and a second refrigerant, wherein the first refrigerant is filled in the closed box body; the condenser is positioned in the closed box body and is positioned above the liquid level of the first refrigerant; the liquid inlet pipe is connected between the supply pipe and the inlet of the condenser; the liquid outlet pipe is connected between the outlet of the condenser and the return pipe; the first valve group is arranged on the liquid inlet pipe and/or the liquid return pipe.

Based on the refrigerating system that the first aspect provided, a plurality of refrigeration subassemblies are parallelly connected on supplying pipe and return pipe through drain pipe and feed liquor pipe to control the first valves that every seals box respectively corresponds in order to realize independent refrigeration, can refrigerate according to the heat source in each seal box, like the refrigeration demand of high-power consumer, accurately, thereby improve refrigerated precision.

In addition, because a plurality of closed boxes independently refrigerate according to the refrigeration demand, can realize the consumer quick refrigeration to high refrigeration demand to improve refrigeration efficiency, and can realize the consumer of low refrigeration demand slow refrigeration or stop the refrigeration, thereby the energy can be saved, reduce cost.

These and other aspects of the present application will be more readily apparent from the following description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a refrigeration system according to an embodiment of the present application;

fig. 2 is a second schematic structural diagram of a refrigeration system according to an embodiment of the present application.

Reference numerals:

101-a supply pipe; 102-a return pipe; 103-sealing the box body; 104-a condenser; 105-a liquid inlet pipe; 106-a liquid outlet pipe; 107-first valve group; 108-liquid supplement; 109-a power supply connection assembly; 110-a cover plate; 111-maintenance space; 112-a filter; 113-a sealing plate; 114-a liquid level of the first refrigerant; 201-a power supply base; 202-a liquid supplementing pipe; 203-second valve set.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

For the convenience of clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the terms "first", "second", and the like are used for distinguishing the same items or similar items with basically the same functions and actions, and those skilled in the art will understand that the terms "first", "second", and the like are not limited in number or execution order.

It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description of the present application, the meaning of "a plurality" means two or more unless otherwise specified.

The embodiment of the application provides a refrigerating system. Referring to fig. 1 and 2, the refrigeration system includes: a supply pipe 101, a return pipe 102, and a plurality of refrigeration components. Each refrigeration assembly includes: a closed box body 103, wherein a first refrigerant is filled in the closed box body 103; the condenser 104 is positioned in the closed box body 103 and is positioned above the liquid level 114 of the first refrigerant; an inlet pipe 105 connected between the supply pipe 101 and an inlet of the condenser 104; a liquid outlet pipe 106 connected between the outlet of the condenser 104 and the return pipe 102; the first valve set 107 is disposed on the liquid inlet pipe 105 and/or the liquid outlet pipe 106.

Specifically, the heat source to be cooled is placed in the closed box 103 and is immersed in the first refrigerant. The first refrigerant absorbs heat generated by the heat source and is converted from a liquid state to a gaseous state to cool the heat source. The first refrigerant converted into a gaseous state is cooled by contact with the condenser 104, and is converted from a gaseous state into a liquid state and falls back to the liquid surface 114 of the first refrigerant, thereby cooling the heat source by the phase change of the first refrigerant.

The entire heat source may be completely immersed in the first refrigerant, or may be only partially immersed in the first refrigerant. The soaking height of the heat source can be determined according to actual conditions, and the embodiment of the application is not particularly limited.

In the embodiment of the present application, the plurality of closed boxes 103 are connected in parallel to the supply pipe 101 and the return pipe 102 through the liquid inlet pipe 105 and the liquid outlet pipe 106, and the circulation, the cutoff, and the flow rate/flow rate of the second refrigerant in each refrigeration assembly can be controlled through the first valve group 107, so as to realize independent refrigeration of each closed box 103, and thus refrigeration can be accurately performed according to the refrigeration requirement of the heat source in each closed box 103, and the refrigeration accuracy is improved.

For example, when the temperature inside the closed box 103 is greater than or equal to the first temperature threshold and/or the air pressure is greater than or equal to the first air pressure threshold, the first valve set 107 is opened to circulate the second refrigerant, so that the gaseous first refrigerant is converted into a liquid state. When the temperature in the closed box 103 is greater than or equal to the second temperature threshold and/or the air pressure is greater than or equal to the second air pressure threshold, the opening degree of the first valve group 107 is increased to increase the flow rate of the second refrigerant, so that the gas-liquid phase change of the first refrigerant is accelerated, and the refrigeration power in the closed box 103 is increased. Conversely, when the temperature in the closed box 103 is reduced below the second temperature threshold and/or the air pressure is reduced below the second air pressure threshold, the opening degree of the first valve set 107 is decreased to decrease the flow rate of the second refrigerant, so as to slow down the gas-liquid phase change of the first refrigerant, and further decrease the refrigeration power in the closed box 103. When the temperature in the closed box 103 is reduced below the first temperature threshold and/or the air pressure is reduced below the first air pressure threshold, the first valve set 107 is closed to stop the second refrigerant, so that the gas-liquid phase change of the first refrigerant is further slowed until the first refrigerant stops. Wherein the second temperature threshold is greater than the first temperature threshold, and the second air pressure threshold is greater than the first air pressure threshold. In addition, the first temperature threshold, the second temperature threshold, the first air pressure threshold, and the second air pressure threshold may be determined according to actual situations, and embodiments of the present application are not particularly limited.

It should be understood that the rotational speed of the pump may also be adjusted according to the temperature, the air pressure, and/or the liquid level, so as to control the flow rate of the second refrigerant, and thus the refrigeration power.

Next, a heat source will be described as an example of an electric device. However, it should be understood that the refrigeration system is also applicable to refrigeration operations for other types of heat sources.

In addition, the electric device may be a high-power electronic device, such as a resistor, a capacitor, an inductor, a transformer, a diode, a transistor, a discrete component for transmitting or processing a high-power signal, a transmitter, a receiver, a power supply, a relay, a mainframe computer, a supercomputer, a server, a generator, a motor, a Printed Circuit Board Assembly (PCBA), and the like, which is not particularly limited in the embodiment of the present application.

In the embodiment of the present application, since the first cooling medium directly contacts the electrical device, the first cooling medium has an insulating property, and has good thermal conductivity, thermal stability, and chemical stability. For example, the first cooling medium may be an electron fluoride liquid or silicone oil. In addition, the first refrigerant has a stable boiling point, and the boiling point is far lower than the ignition point.

In addition, since the working temperature of the general electric equipment is 40 ℃ to 100 ℃, in order to ensure the normal operation of the electric equipment, the boiling point of the first refrigerant can be optionally 30 ℃ to 60 ℃.

Further, the condenser 104 is filled with a second refrigerant.

Specifically, the second refrigerant is filled in the condenser 104 through the liquid supply pipe 101 and the liquid inlet pipe 105, and is discharged out of the condenser 104 through the liquid outlet pipe 106 and the return pipe 16.

In the embodiment of the present application, the second refrigerant may be the same as the first refrigerant or different from the first refrigerant. For example, the first refrigerant and the second refrigerant may be an electron fluoride liquid, or the first refrigerant may be the electron fluoride liquid and the second refrigerant may be water or oil.

In addition, since the second refrigerant does not directly contact the electric device, the second refrigerant may not be insulated.

Alternatively, the condenser 104 may be a coiled tube.

In addition, the condenser 104 may be a net shape or a plate shape having a plurality of protrusions on the surface. The shape of the condenser 104 is not particularly limited in the present application as long as the contact area between the condenser 104 and the gaseous first refrigerant is as large as possible.

To achieve an automated control process, each refrigeration assembly may further comprise: a first detector and a first controller.

The first detector is disposed in the closed box 103 and configured to detect a first parameter in the closed box 103. Wherein the first parameter comprises one or more of: air pressure, temperature, or liquid level. The first controller is electrically connected to the first valve set 107 and the first detector, respectively, and controls the first valve set according to a first parameter.

For example, the first detector detects the temperature, the air pressure, and/or the liquid level inside the closed box 103, and the first controller controls the opening, closing, or opening of the first valve set 107 according to the temperature, the air pressure, and/or the liquid level, so as to increase or decrease the flow rate of the second refrigerant, thereby adjusting the cooling power inside the closed box 103. It should be appreciated that the first controller may also control the pump speed based on temperature, pressure, and/or liquid level to control the flow rate of the second refrigerant to regulate the cooling capacity within the enclosed tank 103. The embodiment of the present application is not particularly limited to this.

Optionally, each refrigeration assembly may further include a liquid replenisher 108 for replenishing the first refrigerant to the closed box 103, so as to adjust the amount of the first refrigerant in the closed box 103, so as to prevent the refrigeration effect from being affected by too little first refrigerant, or prevent the safety from being affected by too high air pressure, thereby improving the stability and safety of the operation of the machine room cooling system.

Specifically, each refrigeration assembly may further include: a refill tube 202, a second valve block 203, a second detector, and a second controller.

Wherein, the fluid infusion tube 202 is connected between the closed box body 103 and the fluid infusion device 108. The second valve set 203 is disposed on the fluid replenishing pipe 202. The second detector is disposed in the closed box 103 and is configured to detect a second parameter in the closed box 103. The second parameter includes one or more of: air pressure, temperature, or liquid level. The second controller is electrically connected to the second detector and the second valve set 203, and controls the second valve set according to a second parameter.

For example, the second valve block 203 may be a pressure switch. When the second detector detects that the liquid pressure at the bottom of the closed box 103 is lower than the liquid pressure threshold and/or the liquid level in the closed box 103 is lower than the liquid level threshold, the second controller controls the second valve set 203 to open, so that the liquid replenisher 108 replenishes the first refrigerant to the closed box 103 through the liquid replenishing pipe 202. When the second detector detects that the liquid pressure at the bottom in the closed box 103 is greater than or equal to the liquid pressure threshold and/or the liquid level in the closed box 103 is greater than or equal to the height threshold, the second controller controls the second valve set 203 to close to stop supplementing the first refrigerant to the closed box 103. Here, the liquid pressure threshold and the height threshold may be determined according to actual conditions, and the embodiments of the present application are not particularly limited.

It should be noted that the first detector and the second detector may be the same detector or different detectors. The first controller and the second controller may be the same controller or may be different controllers. The embodiment of the present application is not particularly limited to this.

In addition, the liquid replenisher 108 may be used to store the first refrigerant when the closed tank 103 is maintained.

Specifically, when the enclosed casing 103 is to be maintained, the second controller controls the second valve group 203 to open, so that the first refrigerant in the enclosed casing 103 flows into the liquid replenishing device 108 through the liquid replenishing pipe 202. When the maintenance of the closed box 103 is completed, the second controller controls the second valve set 203 to open, so that the first refrigerant in the liquid replenishing device 108 flows back to the closed box 103 through the liquid replenishing pipe 202.

In the embodiment of the present application, the supply pipe 101 and the return pipe 102 may be disposed under a raised floor, or may be disposed at other positions according to practical situations, and the embodiment of the present application is not particularly limited.

In the embodiment of the present application, a slot (not shown in fig. 1) may be further disposed in each of the closed boxes 103 for placing an electric device. It should be understood that the number, depth and width of the slots may be determined according to the size and number of the electrical devices to be placed, and the present application is not particularly limited.

In the embodiment of the present application, a cover plate 110 may be further disposed on an upper portion of each of the closed boxes 103 to prevent the first refrigerant from phase-changing and volatilizing outside the closed boxes 103. An openable and closable seal plate 113, such as a snap seal plate, is provided at the upper portion of the slot. A maintenance space 111 is formed between the sealing plate 113 and the cover plate 110. The maintenance space 111 can provide an operating space for maintenance of the refrigeration system, for example, for plugging and unplugging of electrical equipment. And a power supply base 201 is arranged at the bottom of the slot position and used for supplying power to the electric equipment.

In addition, the refrigeration system may further include a power supply connection assembly 109 for supplying power to various components of the overall refrigeration system.

In the present embodiment, each refrigeration system may further include a filter 112, and the filter 112 is disposed on the liquid inlet pipe 105. For example, the filter 112 may filter the second refrigerant, thereby preventing other components from being damaged due to deterioration of the second refrigerant, and further improving the service life of each component. Of course, the filter 112 may be disposed in other connecting pipes, which are not illustrated herein.

In addition, in order to reduce the refrigeration loss, in the refrigeration system of the embodiment of the application, the pipelines of each component can be heat insulation pipes, so that the refrigeration loss caused by indirect heat exchange between the first refrigerant and the outdoor air when the first refrigerant and the second refrigerant flow in the connecting pipelines can be reduced.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (6)

1. A refrigeration system, comprising: the system comprises a supply pipe, a return pipe and a plurality of refrigeration components;

the refrigeration assembly includes:

the refrigerator comprises a closed box body, a first refrigerant and a second refrigerant, wherein the first refrigerant is filled in the closed box body;

the condenser is positioned in the closed box body and is positioned above the liquid level of the first refrigerant;

the liquid inlet pipe is connected between the liquid supply pipe and the inlet of the condenser;

the liquid outlet pipe is connected between the outlet of the condenser and the return pipe;

the first valve group is arranged on the liquid inlet pipe and/or the liquid outlet pipe.

2. The refrigeration system of claim 1, wherein the first refrigerant has a boiling point of 30 ℃ to 60 ℃.

3. The refrigeration system of claim 1, wherein the condenser is filled with a second refrigerant.

4. The refrigerant system as set forth in claim 3, wherein said condenser is a coiled tube.

5. The refrigeration system according to any one of claims 1 to 4,

the refrigeration assembly further includes:

the first detector is arranged in the closed box body and used for detecting a first parameter; the first parameter includes one or more of: air pressure, temperature, or liquid level;

and the first controller is respectively electrically connected with the first valve bank and the first detector and is used for controlling the first valve bank according to the first parameter.

6. The refrigerant system as set forth in claim 5, further including: a liquid supplementing device;

the refrigeration assembly further includes:

the liquid supplementing pipe is connected between the closed box body and the liquid supplementing device;

the second valve bank is arranged on the liquid supplementing pipe;

the second detector is arranged in the closed box body and used for detecting a second parameter; the second parameter includes one or more of: air pressure, temperature, or liquid level;

and the second controller is respectively electrically connected with the second detector and the second valve bank and is used for controlling the second valve bank according to the second parameter.

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