Vacuum-pumping liquid injection anti-suck-back structure

Abstract

The utility model provides a vacuumizing liquid injection anti-suck-back structure, which relates to the technical field of liquid cooling equipment and comprises a box body, a water inlet pipe is arranged on one side of the box body, an inverted U-shaped pipe is mounted at the top end of the box body, absorbent cotton is arranged in the inverted U-shaped pipe, and the other end of the inverted U-shaped pipe is connected with a water blocking protector in a penetrating manner. The other end of the water blocking protector is connected with an air extracting pump in a penetrating mode. According to the utility model, through the arrangement of the box body, a mixture of liquid and water vapor firstly enters the box body, the liquid is deposited in the box body due to gravity, gas flows out through the inverted U-shaped pipe and then passes through the absorbent cotton, the absorbent cotton adsorbs a small amount of water vapor, and finally only a very small amount of water vapor reaches the water blocking protector; and water vapor can be completely prevented from entering the air extracting pump, so that the air extracting pump is protected from being influenced by the water vapor, the service life is prolonged, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling equipment, in particular to a vacuum pumping and liquid injection anti-backflow structure. Background Technique

[0002] The main component of the energy storage system is the battery module. The battery module generates a large amount of heat. In order to ensure the normal operation of the battery module, it is necessary to cool and dissipate heat. The liquid cooling system has the characteristics of better cooling effect and more uniform temperature. Therefore, the liquid cooling system is gradually more and more widely used in the energy storage field;

[0003] Before the existing liquid cooling system starts, it is necessary to use a vacuum pumping and liquid adding device to evacuate the liquid and gas in the pipeline, and then inject the refrigerant into the liquid cooling system; however, during the process of evacuating the pipeline, usually a water tank is connected to the pipeline. When the extracted liquid flows through the pipeline, the liquid enters the water tank under the action of gravity, as Figure 1 shown; but there will also be water vapor mixed with gas entering the pump body of the vacuum pump. Under the action of the water vapor, it is easy to cause damage to the vacuum pump, and the service life will also be greatly reduced. Content of the Utility Model

[0004] The utility model provides a vacuum pumping and liquid injection anti-backflow structure to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the utility model discloses a vacuum pumping and liquid injection anti-backflow structure, which includes a box body. A water inlet pipe is arranged on one side of the box body. An inverted U-shaped pipe is installed at the top of the box body. Absorbent cotton is arranged in the inverted U-shaped pipe. The other end of the inverted U-shaped pipe is connected through a water blocking protector, and the other end of the water blocking protector is connected through a vacuum pump.

[0006] Preferably, a water level display is arranged on the box body, and a warning water level line is also opened on the box body.

[0007] Preferably, a water outlet pipe is connected through the lower surface of the box body, and a valve is also arranged on the water outlet pipe.

[0008] Preferably, a condensing pipe is arranged in the left vertical section of the inverted U-shaped pipe.

[0009] Preferably, the other end of the inverted U-shaped pipe is connected through a water trap.

[0010] Preferably, an opening and closing door is arranged on the water trap.

[0011] Preferably, the other end of the water trap is connected through a pipeline one, and the other end of the pipeline one is rotatably connected through a pipeline two.

[0012] Preferably, the diameter of the pipeline two is larger than that of the pipeline one.

[0013] Preferably, a cross link rod is fixedly arranged inside the second pipeline. A plurality of water absorption strips are arranged on the cross link rod. A rotating rod is fixedly arranged on the cross link rod, and the other end of the rotating rod is fixedly provided with a blade.

[0014] Preferably, the other end of the second pipeline is rotatably connected through the third pipeline in a penetrating manner. The other end of the third pipeline is connected to a water blocking protector in a penetrating manner. The other end of the water blocking protector is connected to the fourth pipeline in a penetrating manner. The other end of the fourth pipeline is connected to an air extraction pump in a penetrating manner.

[0015] Compared with the prior art, the utility model provides a vacuum pumping and liquid injection anti-backflow structure, which relates to the technical field of liquid cooling equipment. By arranging a box body, a mixture of liquid and water vapor will first enter the box body. Due to gravity, the liquid will deposit in the box body, and the gas will flow out through the inverted U-shaped pipe and then pass through the water absorption cotton. The water absorption cotton adsorbs a small amount of water vapor, and finally only a very small amount of water vapor reaches the water blocking protector, which can completely prevent the water vapor from entering the air extraction pump, thereby protecting the air extraction pump from the influence of water vapor and further extending the service life. It has strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the utility model and constitute a part of the specification. They are used together with the embodiments of the utility model to explain the utility model, but do not constitute a limitation to the utility model. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the prior art;

[0018] Figure 2 is a schematic structural diagram of the utility model;

[0019] Figure 3 is the Figure 2 enlarged view of part A of the utility model;

[0020] Figure 4 is a schematic sectional view of the second pipeline of the utility model.

[0021] In the figure: 1, box body; 1A, water tank; 2, water inlet pipe; 2A, pipeline; 3, water outlet pipe; 4, inverted U-shaped pipe; 5, water level display; 6, warning water level line; 7, condenser pipe; 8, water absorption cotton; 9, opening and closing door; 10, water trap; 11, first pipeline; 12, second pipeline; 13, cross link rod; 14, third pipeline; 15, water blocking protector; 16, fourth pipeline; 17, air extraction pump; 18, water absorption strip; 19, rotating rod; 20, blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] Embodiment 1

[0026] An embodiment of the present invention provides a vacuum pumping and liquid injection anti-backflow structure, as Figures 2 - 4 shown, which includes a box body 1. A water inlet pipe 2 is provided on one side of the box body 1. An inverted U-shaped pipe 4 is installed at the top of the box body 1. A water-absorbing cotton 8 is arranged inside the inverted U-shaped pipe 4. The other end of the inverted U-shaped pipe 4 is connected through a water-blocking protector 15 in a penetrating manner. The other end of the water-blocking protector 15 is connected through a vacuum pump 17 in a penetrating manner.

[0027] As Figure 1 shown, in the prior art, usually a water tank 1A is installed on a pipeline 2A. When liquid flows through the pipeline 2A, under the action of gravity, the liquid will enter the water tank 1A, and then the liquid can be discharged. However, when using this method, there will still be gas mixed with water vapor entering the pump body of the vacuum pump, which is likely to cause damage to the vacuum pump;

[0028] In the present utility model, by starting the air extraction pump 17, the water inlet pipe 2 inputs liquid into the box body 1. The gas and a small amount of water vapor pass through the inverted U-shaped pipe 4 at the top of the box body 1. The water-absorbing cotton 8 in the inverted U-shaped pipe 4 adsorbs the water vapor, and then passes through the water-blocking protector 15. The gas enters the air extraction pump 17, and the water vapor is completely blocked.

[0029] By arranging the box body 1, the mixture of liquid and water vapor will first enter the box body 1. Due to gravity, the liquid will deposit in the box body. The gas flows out through the inverted U-shaped pipe 4 at the top of the box body 1, and then passes through the water-absorbing cotton 8. The water-absorbing cotton 8 adsorbs a small amount of water vapor. Finally, only a very small amount of water vapor reaches the water-blocking protector 15, which can completely prevent the water vapor from entering the air extraction pump 17, thereby protecting the air extraction pump 17 from the influence of water vapor and extending its service life. It has strong practicability.

[0030] Embodiment 2

[0031] On the basis of the above Embodiment 1, as Figure 2 shown, a water level indicator 5 is arranged on the box body 1, and a warning water level line 6 is also opened on the box body 1.

[0032] Among them, preferably, the lower surface of the box body 1 is connected with a water outlet pipe 3 in a penetrating manner, and a valve is also arranged on the water outlet pipe 3.

[0033] The working principle and beneficial effects of the above technical solution are as follows: As the water level in the box body 1 continuously rises, when the water level reaches the warning water level line 6, open the valve on the water outlet pipe 3 to drain the water in the box body 1; effectively prevent the water level from being too high and causing water to enter the inverted U-shaped pipe 4. The structure is simple and has strong practicability.

[0034] Embodiment 3

[0035] On the basis of the above Embodiment 2, as Figure 2 shown, a condensing pipe 7 is arranged in the left vertical section of the inverted U-shaped pipe 4.

[0036] Among them, preferably, the other end of the inverted U-shaped pipe 4 is connected with a water trap 10 in a penetrating manner.

[0037] Among them, preferably, an opening and closing door 9 is arranged on the water trap 10.

[0038] The working principle and beneficial effects of the above technical solution are as follows: By arranging the condensing pipe 7, when a gas mixed with water vapor enters the inverted U-shaped pipe 4, as the temperature in the inverted U-shaped pipe 4 decreases, most of the water vapor can be liquefied, thereby adhering to the inner wall of the inverted U-shaped pipe 4 and then flowing back into the box body 1 under the action of gravity.

[0039] By setting the opening and closing door 9, after the opening and closing door 9 is opened, the water absorption cotton 8 can be installed into the inverted U-shaped pipe 4 or the water absorption cotton 8 can be taken out, which is more convenient to use. In addition, a water seal 10 is provided. When the water vapor adsorbed by the water absorption cotton 8 is relatively saturated, water will flow out and flow to the water seal 10. When the opening and closing door 9 is opened, the water can be discharged, and the functionality is stronger.

[0040] Embodiment 4

[0041] On the basis of the above-mentioned Embodiments 1-3, as Figures 2 - 4 shown, the other end of the water seal 10 is connected through a pipeline 11, and the other end of the pipeline 11 is rotatably connected through a pipeline 12.

[0042] Among them, preferably, the diameter of the pipeline 12 is larger than the diameter of the pipeline 11.

[0043] Among them, preferably, a cross-linking rod 13 is fixedly arranged in the pipeline 12, a number of water absorption strips 18 are arranged on the cross-linking rod 13, a rotating rod 19 is fixedly arranged on the cross-linking rod 13, and the other end of the rotating rod 19 is fixedly provided with a blade 20.

[0044] Among them, preferably, the other end of the pipeline 12 is rotatably connected through a pipeline 14, the other end of the pipeline 14 is connected through a water block protector 15, the other end of the water block protector 15 is connected through a pipeline 16, and the other end of the pipeline 16 is connected to an air pump 17.

[0045] Among them, the water block protector 15 is a common product on the market, and those skilled in the art can select it according to needs. The water block protector 15 only allows gas to pass through and prevents liquid from passing through.

[0046] The working principle and beneficial effects of the above technical solutions are as follows: when gas enters the pipeline 12, the gas drives the blade 20 to rotate, the blade 20 drives the rotating rod 19 to rotate, the rotating rod 19 drives the cross-linking rod 13 to rotate, and a number of water absorption strips 18 on the cross-linking rod 13 adsorb the water vapor in the gas; then the gas enters the water block protector 15 through the pipeline 14, the water block protector 15 only allows gas to pass through and prevents liquid from passing through, and then the gas enters the air pump 17 through the pipeline 16;

[0047] And the diameter of the pipeline 12 is larger than the diameter of the pipeline 11. When the gas enters the pipeline 12, the speed will decrease, which is convenient for a number of water absorption strips 18 to adsorb the water vapor in the gas. In addition, the increase in diameter will also cause the volume of the cross-linking rod 13 to increase, that is, the volume of a number of water absorption strips 18 increases, and the water absorption range is larger;

[0048] In addition, the rotation of the second pipeline 12 enables a plurality of water absorption strips 18 to continuously contact with the gas, resulting in a larger gas suction range. At the same time, the cross connecting rod 13 will also disperse the gas, thereby making the water absorption efficiency of the plurality of water absorption strips 18 higher, effectively reducing the water vapor entering the third pipeline 14, that is, reducing the water vapor entering the water blocking protector 15, thus increasing the service life of the water blocking protector 15, with high functionality and strong practicability.

[0049] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A vacuum injection anti-backflow structure, characterized in that: The invention comprises a box body (1), a water inlet pipe (2) is arranged on one side of the box body (1), an inverted U-shaped pipe (4) is installed on the top of the box body (1), water-absorbing cotton (8) is arranged in the inverted U-shaped pipe (4), the other end of the inverted U-shaped pipe (4) is connected to a water-blocking protector (15), and the other end of the water-blocking protector (15) is connected to an air pump (17).

2. A vacuum liquid injection anti-backflow structure according to claim 1, characterized in that: The box body (1) is provided with a water level display gauge (5), and the box body (1) is also provided with a warning water level line (6).

3. The vacuum liquid injection anti-backflow structure according to claim 1, characterized in that: A water outlet pipe (3) is connected through the lower surface of the box body (1), and a valve is also provided on the water outlet pipe (3).

4. The vacuum liquid injection anti-backflow structure according to claim 1, characterized in that: A condensation pipe (7) is arranged in the left vertical section of the inverted U-shaped pipe (4).

5. The vacuum liquid injection anti-backflow structure according to claim 1, characterized in that: The other end of the inverted U-shaped pipe (4) is connected through a water trap (10).

6. A vacuum liquid injection anti-backflow structure according to claim 5, characterized in that: An opening and closing door (9) is arranged on the water trap (10).

7. The vacuum liquid injection anti-backflow structure according to claim 5, characterized in that: The other end of the trap (10) is connected to pipeline one (11), and the other end of pipeline one (11) is connected to pipeline two (12) in a rotatable manner.

8. The vacuum liquid injection anti-backflow structure according to claim 7, characterized in that: The diameter of pipeline 2 (12) is greater than the diameter of pipeline 1 (11).

9. The vacuum liquid injection anti-backflow structure according to claim 7, characterized in that: A cross connecting rod (13) is fixedly arranged in the second pipeline (12), a plurality of water absorbing strips (18) are arranged on the cross connecting rod (13), a rotating rod (19) is fixedly arranged on the cross connecting rod (13), and a blade (20) is fixedly arranged at the other end of the rotating rod (19).

10. A vacuum liquid injection anti-backflow structure according to claim 9, characterized in that: The other end of pipeline two (12) is connected to pipeline three (14) in a rotatable manner, the other end of pipeline three (14) is connected to a water blocking protector (15), the other end of the water blocking protector (15) is connected to pipeline four (16), and the other end of pipeline four (16) is connected to an air extraction pump (17).

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