CN-224215624-U - Phase-change cold accumulation liquid cooling device

Abstract

The utility model relates to a phase change cold accumulation liquid cooling device, wherein a compressor is connected with a heat exchanger through a condenser and then is connected with a back compressor, the other heat path of the heat exchanger is connected with a three-way valve to a first-stage water tank, the first-stage water tank is divided into two paths through a circulating pump, one path of the first-stage water tank is connected with the heat exchanger through a circulating pump, the other path of the first-stage water tank is connected with a direct cooling condenser and then is sent to a three-way valve, the lower end of the first-stage water tank is also connected with a liquid cooling heat exchanger through another circulating pump and an electric three-way valve, the liquid cooling heat exchanger is connected with the first-stage water tank, the electric three-way valve is also connected with the first-stage water tank, the liquid cooling heat exchanger is connected with a liquid return pipe through a load, a liquid return valve, a flow and a temperature sensor are sequentially arranged on the liquid return pipe, the liquid return pipe is connected with a liquid supply pipe to the load, the liquid supply pipe is connected with a second-stage water tank through a water tank temperature sensor, the lower end of the second-stage water tank is connected with the output through the circulating pump, a filter, a liquid supply temperature sensor and a liquid supply valve. The device has a simple structure, and can meet the requirements of constant-temperature refrigeration supply on the load side when the temperature difference is high and low and the instantaneous switching is carried out.

Inventors

• DING JIANGUO
• ZHOU WEIDONG
• ZHANG TONG
• GU CHENGZHI
• LI JIAHUI
• QIAN WENPING

Assignees

• 中天（江苏）防务装备有限公司

Dates

Publication Date

20260508

Application Date

20250414

Claims (5)

1. 1. The phase change cold accumulation liquid cooling device comprises a compressor, a condenser and a heat exchanger, wherein the compressor is connected with the heat exchanger through the condenser and then is connected with a back compressor, and is characterized by further comprising a first-stage water tank, a liquid cooling heat exchanger and a second-stage water tank, wherein the other heat path of the heat exchanger is connected with the first-stage water tank through a first electric three-way valve, a temperature sensor is arranged in the first-stage water tank, the lower end of the first-stage water tank is divided into two paths through a first circulating pump, one path of the first-stage water tank is connected with the other path of the first-stage water tank through the second circulating pump, the other path of the first-stage water tank is connected with the first heat path of the liquid cooling heat exchanger through a second electric three-way valve, the first heat path of the liquid cooling heat exchanger is connected with the first-stage water tank, the second electric three-way valve is connected with the first-stage water tank, the other heat path of the liquid cooling heat exchanger is connected with the first-stage water tank through a liquid return pipe, a liquid return valve, a flow sensor and a temperature sensor are sequentially arranged on the liquid return pipe, the other heat path of the liquid cooling heat exchanger is connected with a liquid supply pipe to the load through a water tank temperature sensor, the second-stage water tank temperature sensor is connected with the second-stage water tank, the second heat exchanger is connected with the second heat pump, and the second heat exchanger is connected with the temperature sensor through the third circulating water tank and the liquid return pipe sequentially.
2. 2. The phase-change cold accumulation liquid cooling device as in claim 1 wherein the condenser is connected to the heat exchanger via a liquid reservoir, a dry filter, and an expansion valve.
3. 3. The phase-change cold accumulation liquid cooling device as set forth in claim 1, wherein liquid level sensors are provided in the primary water tank and the secondary water tank, and liquid supplementing ports are provided in the primary water tank and the secondary water tank.
4. 4. The phase-change cold accumulation liquid cooling device as in claim 1 wherein the bypass line is connected back to the secondary tank after the filter, and a bypass valve is provided on the bypass line.
5. 5. The phase-change cold accumulation liquid cooling device as in claim 1 wherein the lower ends of the primary water tank and the secondary water tank are also connected through a communication pipeline, and the communication pipeline is provided with a communication valve and a bidirectional pump.

Description

Phase-change cold accumulation liquid cooling device Technical Field The utility model relates to a liquid cooling device, in particular to a phase change cold accumulation liquid cooling device. Background In the existing compression refrigeration liquid cooling structure, conventionally adopted compression refrigeration is subjected to heat exchange through a heat exchanger, load liquid returns are cooled in the heat exchanger and then are supplied to a load, along with the improvement of the requirement of load liquid cooling supply, the liquid cooling in some sensitive and high-precision electronic occasions needs to have a small fluctuation range and high precision, constant-temperature liquid supply is needed, but a compressor system forms a high-pressure side and a low-pressure side through boosting and throttling and depressurization, when the operation exceeds a threshold value, a pressure control forced compressor is stopped, the refrigerant supply of the compressor side forms periodic fluctuation, the refrigerant charge of the compressor side, the opening degree of an expansion valve is controlled or fails, and the gas-liquid separation of a gas-liquid separator cannot be stable, so that the cold quantity fluctuation of the cold side of the load liquid can be finally caused, and the requirement of constant-temperature refrigeration supply cannot be met. In addition, when the fluctuation of the temperature difference change occurs on the load side is large, the fluctuation of the change on the compression side is large, the power consumption on the compression side is high instantaneously, and the load side cannot meet the constant-temperature refrigeration supply at the fluctuation instantaneous rapidly. Disclosure of Invention The utility model provides a phase-change cold accumulation liquid cooling device which has a simple structure and can meet the constant-temperature refrigeration supply of a load side. The utility model adopts the technical scheme that the phase change cold accumulation liquid cooling device comprises a compressor, a condenser and a heat exchanger, wherein the compressor is connected with the heat exchanger through the condenser and then returns to the compressor after one heat stroke, the phase change cold accumulation liquid cooling device is characterized by further comprising a first-stage water tank, a liquid cooling heat exchanger and a second-stage water tank, the other heat stroke of the heat exchanger is connected to the first-stage water tank through a first electric three-way valve, a temperature sensor is arranged in the first-stage water tank, the lower end of the first-stage water tank is divided into two paths through a first circulating pump, one path is connected to the other heat stroke of the heat exchanger, the other path is connected to a direct cooling condenser and then is sent to the first electric three-way valve, the lower end of the first-stage water tank is also connected to the first heat stroke of the liquid cooling heat exchanger through a second circulating pump, the second electric three-way valve is also connected to the first-stage water tank, the other heat stroke of the liquid cooling heat exchanger is connected to the first-stage water tank through a liquid return pipe, a liquid return valve, a flow sensor and a temperature sensor are sequentially arranged on the liquid return pipe, the other heat stroke of the liquid cooling heat exchanger is connected to a liquid supply pipe through a second-stage water tank temperature sensor, the second heat exchanger is connected to the second-stage water tank, and the temperature sensor is connected to the second heat exchanger through the second heat pump, and the temperature sensor sequentially, and the temperature sensor is connected to the second heat exchanger. The condenser is connected with the heat exchanger through the liquid storage device, the dry filter and the expansion valve. Liquid level sensors are arranged in the primary water tank and the secondary water tank, and liquid supplementing ports are arranged on the primary water tank and the secondary water tank. The filter is characterized in that a bypass pipeline is separated from the filter and connected back to the secondary water tank, and a bypass valve is arranged on the bypass pipeline. The lower ends of the primary water tank and the secondary water tank are communicated through a communication pipeline, and a communication valve and a two-way pump are arranged on the communication pipeline. The utility model adopts the first-stage water tank to exchange heat with the heat exchanger, the refrigerant in the first-stage water tank controls the constant temperature, and then the liquid-cooled heat exchanger is fed to carry out refrigeration and heat exchange with the liquid return and supply pipe at the load side, and the liquid-cooled flow of the liquid return and supply is ensured to be stable by combining the second-stage