Sealed liquid storage device

Abstract

The present invention discloses a sealed liquid storage device, including a pressure storage tank, the upper part of which is connected with an inlet and outlet pipe, the inlet and outlet pipes are respectively connected with a differential pressure check valve, the pressure storage tank is respectively connected with a water pipe trunk through an upper and lower branch pipes, the lower branch pipe is connected with a valve and a check valve, and the upper branch pipe is connected with a differential pressure bypass valve. The present invention has a novel and reasonable structure, and can perform constant pressure liquid replenishment and recovery of circulating liquid under the condition of keeping the liquid replenishment tank relatively sealed from the outside.

Description

Technical Field

[0001] The invention relates to the technical field of liquid cooling, in particular to a sealed liquid storage device. Background Art

[0002] With the development of the national economy, large-scale high-power heating equipment for military and industrial purposes has appeared, and the corresponding liquid cooling technology has also appeared accordingly. The liquid storage tank is set on the water circulation system of the liquid cooling system to realize the storage function of the solution during the system's liquid replenishment, constant pressure and cold liquid recovery process. The liquid storage tank needs to be set to open due to the change in the internal solution capacity. The open liquid storage tank has a simple structure and does not need to consider the pressure-bearing structure. However, the solution in the tank is in contact with the atmosphere, the solution is easy to deteriorate, and is seriously polluted by atmospheric particles. Summary of the invention The object of the present invention is to provide a sealed liquid storage device, which can realize constant-pressure liquid replenishment and recovery of circulating liquid under the condition that the liquid replenishment tank is kept relatively sealed from the outside.

[0003] In order to achieve the above object, the technical solution adopted by the present invention is:

[0004] A sealed liquid storage device, characterized in that it includes a sealable pressure liquid storage tank, the upper part of the pressure liquid storage tank is connected with an inlet and outlet pipe, the inlet and outlet pipes are respectively connected with a pressure differential one-way valve, wherein the conducting direction of the pressure differential one-way valve on the inlet pipe is from the outside of the pressure liquid storage tank to the inside of the pressure liquid storage tank, and the conducting direction of the pressure differential one-way valve on the outlet pipe is from the inside of the pressure liquid storage tank to the outside of the pressure liquid storage tank, the pressure liquid storage tank is connected with a water pipe trunk through an upper and a lower branch pipe, respectively, wherein the lower branch pipe is connected with a valve, a water pump, and a one-way valve in sequence, the conducting direction of the one-way valve is from the pressure liquid storage tank to the water pipe trunk, and the upper branch pipe is connected with a pressure differential bypass valve.

[0005] The sealed liquid storage device is characterized in that the pressure liquid storage box is composed of a box body with a liquid inlet on the top and a cover sealed and connected to the liquid inlet.

[0006] The sealed liquid storage device is characterized in that a liquid level display device is arranged on the side of the pressure liquid storage tank.

[0007] The sealed liquid storage device is characterized in that a liquid filter is connected between the valve and the water pump in the downward branch pipe.

[0008] The sealed liquid storage device is characterized in that the air inlet pipe is connected to a gas filter.

[0009] The sealed liquid storage device is characterized in that the conduction pressure difference values ​​of the pressure difference check valves on the inlet and outlet pipes are the same, and the conduction pressure difference value of the pressure difference bypass valve on the upward branch pipe is greater than the conduction pressure difference value of the pressure difference check valve on the outlet pipe.

[0010] In the present invention, differential pressure check valves are provided on the air intake and exhaust pipes (the differential pressure is selected according to the requirements), and a filter can be provided on the air intake pipe according to the cleanliness requirements.

[0011] The present invention is connected to the water main, and the upward branch pipe is provided with a pressure difference bypass valve, which can collect the solution in the water main according to the demand. The pressure difference value of the pressure difference bypass valve is greater than the conduction pressure difference value of the pressure difference check valve on the air outlet pipe. The downward branch pipe is provided with a valve, a filter, a water pump, and a check valve, which can replenish the solution in the pressure storage tank into the water main.

[0012] The advantages of the present invention are:

[0013] The relatively sealed liquid storage device can isolate the solution in the liquid storage tank from the atmosphere, delay the deterioration period of the solution, and reduce particle pollution. The invention has a novel and reasonable structure, can perform constant pressure liquid replenishment and recycling of circulating liquid under the condition of keeping the liquid replenishment tank relatively sealed from the outside world, and has the advantages of simple structure, easy implementation, and high working reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] like Figure 1 As shown, a sealed liquid storage device comprises a sealable pressure storage tank 1, the upper part of the pressure storage tank 1 is connected with an inlet and an outlet pipe, the inlet and outlet pipes are connected with pressure differential check valves 3.1 and 3.2 respectively, and the inlet pipe is also connected with a gas filter 4. The conduction direction of the pressure differential check valve 3.1 on the inlet pipe is from the outside of the pressure storage tank 1 to the inside of the pressure storage tank 1, and the conduction direction of the pressure differential check valve 3.2 on the outlet pipe is from the inside of the pressure storage tank 1 to the outside of the pressure storage tank 1. The pressure storage tank 1 is connected with a water pipe trunk 11 through an upper and lower branch pipes respectively, wherein the lower branch pipe is connected with a valve 6, a water pump 8, and a check valve 9 in sequence, and the conduction direction of the check valve 9 is from the pressure storage tank 1 to the water pipe trunk 11, and the upper branch pipe is connected with a pressure differential bypass valve 10.

[0017] The pressure liquid storage tank 1 is composed of a box body with a liquid inlet at the top and a cover 5 sealed and connected to the liquid inlet. A liquid level display device 2 is arranged on the side of the pressure liquid storage tank 1.

[0018] A liquid filter 7 is connected between the valve 6 and the water pump 8 in the downstream branch pipe.

[0019] The conduction pressure difference value of the differential pressure check valves 3.1 and 3.2 on the inlet and outlet pipes is the same, and the conduction pressure difference value of the differential pressure bypass valve 10 on the upward branch pipe is greater than the conduction pressure difference value of the differential pressure check valve 3.2 on the outlet pipe.

[0020] The working process of the present invention is as follows:

[0021] (1) Fluid refilling function in the fluid refilling tank

[0022] Open the lid 5, add liquid into the pressure liquid storage tank 1, observe the liquid level display device 2, and when the liquid level reaches a certain height, stop adding liquid into the tank and cover it with a tape 5 with a sealing function.

[0023] (2) Fluid rehydration process

[0024] When the solution in the water main pipe 11 is insufficient, the valve 6 is opened and the water pump 8 is started; the coolant in the pressure storage tank 1 is injected into the water main pipe 11 through the liquid filter 7 and the one-way valve 9; as the solution in the pressure storage tank 1 decreases, negative pressure appears in the tank, and when the negative pressure is greater than the pressure value of the differential pressure one-way valve 3.1 on the intake pipe, the external air enters the pressure storage tank 1 through the filter 4. After the liquid replenishment is completed, the valve 6 can be closed.

[0025] (3) Liquid storage process

[0026] When the pressure in the water main pipe 11 is too high, the pressure differential bypass valve 10 opens, and part of the coolant in the water main pipe is discharged into the pressure storage tank 1. As the solution in the pressure storage tank 1 increases, positive pressure appears in the tank. When the positive pressure is greater than the pressure value of the pressure differential check valve 3.2 on the outlet pipe, the internal air is discharged through the pressure differential check valve 3.2. When the pressure in the closed water system drops to the set value, the pressure differential bypass valve 10 closes;

[0027] The above embodiments are not limited to the protection scope of the present invention, and all modifications or changes based on the basic concept of the present invention belong to the protection scope of the present invention.

Claims

1. A sealed liquid storage device, characterized in that: It includes a sealable pressure storage tank, the upper part of which is connected with an inlet and an outlet pipe, and the inlet and outlet pipes are respectively connected with a pressure differential one-way valve, wherein the conduction direction of the pressure differential one-way valve on the inlet pipe is from the outside of the pressure storage tank to the inside of the pressure storage tank, and the conduction direction of the pressure differential one-way valve on the outlet pipe is from the inside of the pressure storage tank to the outside of the pressure storage tank, and the pressure storage tank is respectively connected with a water pipe trunk through an upward and downward branch pipe, wherein the downward branch pipe is connected with a valve, a water pump, and a one-way valve in sequence, and the conduction direction of the one-way valve is from the pressure storage tank to the water pipe trunk, and the upward branch pipe is connected with a pressure differential bypass valve; The pressure liquid storage tank is composed of a box body with a liquid inlet on the top, and a cover sealed and connected to the liquid inlet; A liquid level display device is provided on the side of the pressure liquid storage tank; A liquid filter is connected between the valve and the water pump in the downstream branch pipe; The air inlet pipe is connected to a gas filter; The conduction pressure difference value of the pressure difference check valve on the inlet and outlet pipes is the same, and the conduction pressure difference value of the pressure difference bypass valve on the upward branch pipe is greater than the conduction pressure difference value of the pressure difference check valve on the outlet pipe.

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