CN217402889U

CN217402889U - Single refrigeration system, multichannel supply liquid demand liquid cooling device

Info

Publication number: CN217402889U
Application number: CN202220920018.3U
Authority: CN
Inventors: 刘杰; 吴敏
Original assignee: Hefei Swan Refrigeration Technology Co Ltd
Current assignee: Hefei Swan Refrigeration Technology Co Ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-09-09
Anticipated expiration: 2032-04-20

Abstract

The utility model discloses a single refrigeration system and a multi-path liquid cooling device with liquid supply requirements, wherein a compressor is connected with one end of a condenser through an exhaust pipe, and the other end of the condenser is connected with each path of evaporator through each path of fluorine solenoid valve; each path of liquid supply pump is connected between each path of water tank and each path of evaporator, each path of heat load water inlet end is connected with the water outlet end of the corresponding liquid supply pump, and the water outlet end is connected with the corresponding evaporator to form 1#, 2#, and 3# liquid supply loops; the electric control device is connected with the compressor, the liquid supply electromagnetic valves, the liquid supply pumps, the liquid supply temperature sensors and the fluorine low-pressure controller through cable assemblies, and the liquid supply temperature sensors are arranged on the liquid outlet and supply pipelines of the liquid supply pumps. The utility model discloses gather fault information such as each supplies liquid temperature and compressor, each liquid feed pump protection, implement logic control to each way liquid feed pump, each fluorine way solenoid valve, compressor, realize that liquid cooling device multichannel supplies the liquid demand.

Description

Single refrigeration system, multichannel supply liquid demand liquid cooling device

Technical Field

The utility model relates to a liquid cooling device multichannel supplies liquid control technical field, especially relates to a single refrigerating system, multichannel supply liquid demand liquid cooling device.

Background

The main purpose of the liquid chiller is to provide a circulating coolant, i.e., a cooling liquid, with certain temperature, flow rate and pressure requirements for the object to be cooled. With the rapid development of some high-power radars, lasers, cabinets and other equipment in recent years, the demand for liquid cooling machines serving as guarantee equipment of the high-power radars, lasers, cabinets and other equipment is increasing. The liquid supply device can realize multi-path liquid supply with different requirements, particularly different temperature requirements, in a compact space, has a perfect display and control interface, and has the important subject direction of high-precision control of the liquid supply temperature and the like.

At present, the liquid cooling devices for multi-path liquid supply generally have the following two types:

1. the single compression refrigeration system, the single evaporator and the single water pump are used, the liquid supply temperature is uniform, and the liquid supply loop realizes multi-path liquid supply through the water collecting and distributing device. The liquid cooling device has small volume, the flow of each path can realize the required requirement through valve adjustment, but the liquid supply temperature can not meet the different requirements of each path.

2. A plurality of compression refrigeration systems correspond multichannel evaporimeter, and the confession liquid return circuit establishes corresponding independent water pump, and each way confession liquid temperature is independent to be gathered and control, and this kind of type liquid cooling device supplies liquid and can satisfy the demand of multichannel different pressure, different flow and different temperatures simultaneously, but compression refrigeration system is more, and fluorine pipeline is complicated, and occupation space is bulky, is unfavorable for the maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is exactly in order to remedy prior art's defect, provides a single refrigerating system, multichannel liquid supply demand liquid cooling device for realize the coolant liquid supply of the different pressure of multichannel, different flow and different temperatures in the narrow and small space.

The utility model discloses a realize through following technical scheme:

a single refrigeration system and a multi-path liquid cooling device requiring liquid supply comprise a compressor, a condenser heat dissipation assembly, a multi-path liquid supply loop and an electric control device, wherein each path of liquid supply loop comprises a fluorine electromagnetic valve, an evaporator, a water tank, a liquid supply pump and a heat load; the heat load water inlet end is connected with the water outlet end of the corresponding liquid supply pump, the heat load water outlet end is connected with the corresponding evaporator, the evaporator is connected with the water tank inlet, and the water tank outlet is connected with the water inlet end of the corresponding liquid supply pump; and the electric control device is electrically connected with the compressor, the fluorine electromagnetic valves of all paths, the liquid supply pumps of all paths and the liquid supply temperature sensors of all paths respectively through cable components.

Each path of fluorine electromagnetic valve is of a normally closed type, the fluorine electromagnetic valve is in a cut-off state when the current liquid supply loop has no refrigeration requirement, the fluorine electromagnetic valve is opened when the current liquid supply loop has the refrigeration requirement, and the corresponding evaporator is filled with liquid refrigerant to carry out evaporation heat exchange.

And a fluorine low-pressure controller is arranged on the air suction pipeline of the compressor and is electrically connected with an electric control device.

The refrigerating side is a single refrigerating system and only has one set of compressor and refrigerating and heat-dissipating system.

And the liquid supply pumps of all paths carry out model selection according to the liquid supply flow and liquid supply pressure requirements of all paths, and the capacity of the liquid supply pumps meets the liquid supply requirements of the corresponding paths and keeps the allowance.

The liquid supply temperature sensor collects liquid supply temperature information and uploads an actual liquid supply temperature value to the electric control device.

The compressor is started after a starting command of the liquid cooling device is issued and when any liquid supply loop has a refrigeration requirement, the compressor is closed after being started except for self fault or low suction pressure, and other moments are not influenced by other conditions including liquid supply temperature.

The area of each path of evaporator is distributed according to the refrigerating capacity, and the Freon side of the evaporator is designed according to equal resistance, so that the reasonable distribution of each path of liquid supply is realized.

The electric control device collects fault information such as temperature of each path of liquid supply, information of a fluorine low-pressure controller, fault protection of the compressor and the liquid supply pump and the like, logic control is carried out on a compressor condensing system, each path of liquid supply pump and each path of electromagnetic valve, and liquid supply requirements of each path of the device are guaranteed.

The heating power of each path of heat load is different, and the flow, pressure and temperature of the required cooling liquid are different but work at the same time; the electric control device integrates and circularly displays the liquid supply information of each path, the liquid path identification display is arranged at the front end of the information, the information display can be locked by a combined key to observe a liquid supply loop required by a user, the current liquid supply temperature target value TS of the liquid path is set, and the circular display is returned by the combined key after the observation and the setting are finished; after the liquid cooling device is started, the liquid supply pumps are sequentially started, when the liquid supply temperature T of a certain liquid path is more than or equal to TS +0.8, the corresponding liquid path fluorine electromagnetic valve is opened, when T is less than TS +0.5, the corresponding liquid path electromagnetic valve is closed, the heat exchange quantity of the evaporator is controlled by opening and closing the electromagnetic valve, and the liquid supply temperature precision is controlled within the range of +/-1 ℃ of the set temperature; the compressor is opened when any fluorine electromagnetic valve works, and in a normal working state, after all the electromagnetic valves are closed, the air suction loop of the compressor is disconnected, the low-pressure controller is disconnected and transmits a signal to the electric control device, and the electric control device sends a command to close the compressor.

When the utility model works, the liquid supply flow and the liquid supply pressure of each path are ensured by the selection of each path of liquid supply pump and are realized by the adjustment of a manual flow regulating valve and a bypass valve of the water path; the temperature control of each path of liquid supply is realized by the heat exchange quantity of the corresponding evaporator, and the control of the heat exchange quantity of the evaporator is realized by opening or closing the corresponding fluorine electromagnetic valve; the compression refrigeration system is started when any one path has refrigeration demand, after the compression refrigeration system is started, if the three paths have no refrigeration demand, the air suction loop of the compressor is cut off, the signal of the fluorine low-pressure controller is disconnected, the electric control device closes the compressor, and the compressor does not break down and continues to run.

The utility model has the advantages that:

1. the utility model discloses a single refrigerating system, the pipeline is realized simply, and occupation space is small.

2. The utility model discloses avoided the compressor to open and stop the accuse temperature, adopted the liquid freon of multichannel solenoid valve control to supply with, realized that the multichannel supplies liquid temperature control.

3. The utility model discloses, the low trouble that does not regard as of suction pressure does not show the fault code for each way all does not have refrigeration demand signal and cuts off the compressor, avoids the wrong report alert.

4. The utility model discloses, multichannel supplies liquid temperature, pressure, flow information circulation to concentrate the demonstration to the required liquid way of lockable provides perfect accuse in the narrow and small space and protects information.

5. The utility model discloses each way evaporimeter area is according to the refrigerating output distribution, and the evaporimeter freon side is according to the design of resistance such as waiting, and it is reasonable to realize the distribution that each way supplied liquid.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in fig. 1, a single refrigeration system and a multi-channel liquid cooling device with liquid supply requirements comprises a compressor 1, a condenser heat dissipation assembly 2, fluorine solenoid valves I, II, III 3, 4, 5, evaporators I, II, III 6, 7, 8, water tanks I, II, III 9, 10, 11, liquid supply pumps I, II, III 12, 13, 14, liquid supply temperature sensors I, II, III 15, 16, 17, heat loads I, II, III 18, 19, 20, a fluorine low-pressure controller 21, a fluorine pipeline system 22, a water pipeline system 23, a cable assembly 24 and an electric control device 25.

The compressor 1 is connected with the condenser radiating assembly 2 through an exhaust pipe of the fluorine pipeline system 22; the other end of the condenser radiating component 2 is connected with a first evaporator 6 through a first fluorine electromagnetic valve 3, connected with a second evaporator 6 through a second fluorine electromagnetic valve 4 and connected with a third evaporator 8 through a third fluorine electromagnetic valve 5; the other ends of the first evaporator 6, the second evaporator 7 and the third evaporator 8 are respectively connected with the air suction end of the compressor 1. The fluorine low pressure controller 21 is installed on the suction line of the compressor 1.

The water tank I9, the evaporator I6, the liquid supply pump I12, the liquid supply temperature sensor I15 and the heat load I18 are sequentially connected through a water pipeline assembly 23 according to a drawing to form a No. 1 liquid supply loop, and the liquid supply temperature sensor I15 is installed on an outlet pipeline of the liquid supply pump I12.

The second water tank 10, the second evaporator 7, the second liquid supply pump 13, the second liquid supply temperature sensor 16 and the second heat load 19 are connected in sequence according to the figure through a water pipeline assembly 23 to form a No. 2 liquid supply loop, and the second liquid supply temperature sensor 16 is installed on an outlet pipeline of the second liquid supply pump 13.

The third water tank 11, the third evaporator 8, the third liquid supply pump 14, the third liquid supply temperature sensor 17 and the third heat load 20 are sequentially connected through a water pipeline assembly 23 according to a diagram to form a 3# liquid supply loop, and the third liquid supply temperature sensor 17 is installed on an outlet pipeline of the third liquid supply pump 14.

The electric control device 25 is connected with the compressor 1, each path of fluorine electromagnetic valve, each path of liquid supply temperature sensor, each path of liquid supply pump and the fluorine low-voltage controller 21 through the cable assembly 24. The electric control device 4 is composed of a low-voltage apparatus and a program controller, and performs information acquisition and logic control on connected components according to a preset program.

The utility model discloses before work at every turn, at first need accomplish each heat load side water piping connection, then electrically controlled device adds the electric self-checking trouble, sets for each way at the electrically controlled device part at last and supplies liquid temperature, start the liquid cooling device. After the liquid cooling device is started, the liquid supply circulation of each path is started in sequence, and the liquid cooling device operates according to data such as the liquid supply temperature of each path, the liquid supply temperature set value and the like according to a preset program to provide cooling liquid with proper temperature for a heat load and ensure the normal working requirement of the heat load.

Claims

1. The utility model provides a single refrigerating system, multichannel supply liquid demand liquid cooling device which characterized in that: the condenser heat dissipation assembly comprises a compressor, a condenser heat dissipation assembly, a plurality of paths of liquid supply loops and an electric control device, wherein each path of liquid supply loop comprises a fluorine electromagnetic valve, an evaporator, a water tank, a liquid supply pump and a heat load; the heat load water inlet end is connected with the water outlet end of the corresponding liquid supply pump, the heat load water outlet end is connected with the corresponding evaporator, the evaporator is connected with the water tank inlet, and the water tank outlet is connected with the water inlet end of the corresponding liquid supply pump; and a liquid supply temperature sensor is arranged on a water outlet pipeline of each liquid supply pump, and the electric control device is respectively and electrically connected with the compressor, the fluorine electromagnetic valves of all channels, the liquid supply pumps of all channels and the liquid supply temperature sensors of all channels through cable components.

2. The single refrigeration system, multi-channel liquid cooling device with liquid supply requirement of claim 1, wherein: each path of fluorine electromagnetic valve is of a normally closed type, the fluorine electromagnetic valve is in a cut-off state when the current liquid supply loop has no refrigeration requirement, the fluorine electromagnetic valve is opened when the current liquid supply loop has the refrigeration requirement, and the corresponding evaporator is filled with liquid refrigerant to carry out evaporation heat exchange.

3. The single refrigeration system, multi-channel liquid cooling device with liquid supply requirement of claim 1, wherein: and a fluorine low-pressure controller is arranged on the air suction pipeline of the compressor and is electrically connected with an electric control device.