Liquid cooling circulation device for low-temperature bath

Abstract

The utility model discloses a low-temperature bath liquid cooling circulation device which comprises a low-temperature bath body, a bath body of the low-temperature bath body is of a rectangular groove-shaped structure, a magnetic stirring mechanism is arranged at the bottom of the bath body, and a liquid collecting tank is arranged below the magnetic stirring mechanism. One side of the liquid collecting tank is connected with the liquid inlet end of a circulating pump through a liquid guide pipe, and the liquid outlet end of the circulating pump is connected with a three-way control valve. And while forced circulation of the heat exchange medium is achieved, the opening positions of the backflow liquid injection assembly are evenly arranged, and the uniformity of the temperature of the heat exchange medium can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature baths, in particular to a low-temperature bath liquid cooling circulation device. Background Art

[0002] Low-temperature thermostatic baths are suitable for high-precision constant temperature direct heating and cooling in scientific fields such as biology, chemistry, physics, plants, and chemical engineering. Low-temperature thermostatic baths are usually equipped with circulating pumps to force convection of the heat exchange medium (such as alcohol or ethylene glycol, etc.) in the bath to maintain temperature uniformity in the entire working space, so that the object being measured can obtain a uniform temperature distribution; however, the existing circulation mechanisms are relatively simple, and most of them adopt the traditional one-in-one circulation method, which has a poor forced convection mixing effect on the heat exchange medium, affecting the temperature uniformity in the working space, and the heat exchange medium (such as alcohol or ethylene glycol, etc.) needs to be manually exported after use, which is a cumbersome operation. In view of this, in-depth research was conducted on the above-mentioned issues, and this case was created. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a low-temperature bath liquid cooling circulation device, which solves the problems raised in the background technology.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a low-temperature bath liquid cooling circulation device, including a low-temperature bath body, the tank body of the low-temperature bath body is a rectangular tank structure, a magnetic stirring mechanism is arranged at the bottom of the tank body, a liquid collecting tank is arranged below the magnetic stirring mechanism, one side of the liquid collecting tank is connected to the liquid inlet end of a circulation pump through a liquid guide tube, the liquid outlet end of the circulation pump is connected to a three-way control valve, one outlet of the three-way control valve is connected to a circulation pipe, a reflux injection assembly is arranged inside the tank body, one end of the reflux injection assembly is connected to the circulation pipe, the other outlet of the three-way control valve is connected to a drain pipe, and the drain pipe is connected to a liquid collecting tank.

[0005] The reflux injection assembly comprises a symmetrically arranged U-shaped pipeline, one end of the U-shaped pipeline is connected to the circulation pipe through a three-way joint, and injection pipes are evenly installed on the lower side of the U-shaped pipeline.

[0006] A grid baffle is arranged at the opening position of the upper end of the liquid collecting tank.

[0007] A cone-shaped bucket is arranged at the lower part of the liquid collecting tank.

[0008] A liquid supply pump is connected to one side of the liquid collecting tank, and the outlet end of the liquid supply pump is connected to the circulation pipe through a liquid supply pipe, and a control valve and an electromagnetic flowmeter are installed on the liquid supply pipe.

[0009] A drain valve is arranged at the bottom of the liquid collecting tank.

[0010] The utility model provides a low-temperature bath liquid cooling circulation device. It has the following beneficial effects: the low-temperature bath liquid cooling circulation device improves the existing low-temperature bath body, and a liquid collecting tank is arranged at the lower side of the magnetic stirring mechanism. The heat exchange medium is collected downward under the action of gravity, and is drawn out by a circulation pump and then injected back into the tank body through a circulation pipe and a reflux injection component. While realizing the forced circulation of the heat exchange medium, the opening positions of the reflux injection component are evenly arranged, which can further improve the uniformity of the temperature of the heat exchange medium. In addition, after use, the heat exchange medium can be directly introduced into the liquid collecting tank by using a circulation pump, so as to realize the automatic emptying of the heat exchange medium, which greatly reduces the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of a low-temperature bath liquid cooling circulation device described in the utility model.

[0012] Figure 2 The utility model is a schematic diagram of a top view of the structure of a low-temperature bath liquid cooling circulation device.

[0013] Figure 3 It is a partial cross-sectional structural schematic diagram of a low-temperature bath liquid cooling circulation device described in the utility model.

[0014] Figure 4 It is a schematic diagram of the partial axonometric structure of the reflux injection component of the utility model.

[0015] In the figure: 1. Low temperature bath body; 2. bath body; 3. magnetic stirring mechanism; 4. liquid collecting tank; 5. liquid guide tube; 6. circulation pump; 7. three-way control valve; 8. circulation pipe; 9. liquid discharge pipe; 10. liquid collecting box; 11. U-shaped pipeline; 12. three-way joint; 13. liquid injection pipe; 14. grid baffle; 15. cone bucket; 16. liquid supply pump; 17. liquid supply pipe; 18. control valve; 19. electromagnetic flowmeter; 20. liquid discharge valve. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Embodiment: In conjunction with the specification Figure 1-4It can be seen that the present application specifically designs a low-temperature bath liquid cooling circulation device, including a low-temperature bath body 1, a tank body 2 of the low-temperature bath body 1 is a rectangular tank structure, a magnetic stirring mechanism 3 is arranged at the bottom of the tank body 2, a liquid collecting tank 4 is arranged below the magnetic stirring mechanism 3, one side of the liquid collecting tank 4 is connected to the liquid inlet end of the circulation pump 6 through a liquid guide tube 5, the liquid outlet end of the circulation pump 6 is connected to a three-way control valve 187, one outlet of the three-way control valve 187 is connected to a circulation pipe 8, a reflux injection assembly is arranged on the inner side of the tank body 2, one end of the reflux injection assembly is connected to the circulation pipe 8, the other outlet of the three-way control valve 187 is connected to a drain pipe 9, the drain pipe 9 is connected to a liquid collecting box 10, a drain valve 20 is arranged at the bottom of the liquid collecting box 10, and the heat exchange medium may be ineffective after being used for a certain number of times or for a certain period of time, and the drain valve 2 can be used to discharge the heat exchange medium. 0 The heat exchange medium in the liquid collecting tank 10 is emptied. The device is based on the technical improvement of the existing low-temperature bath body 1. The liquid collecting tank 4 is arranged on the lower side of the magnetic stirring mechanism 3. The heat exchange medium is collected downward under the action of gravity, and is extracted through the circulation pump 6 and then injected back into the tank body 2 through the circulation pipe 8 and the reflux injection component. While realizing the forced circulation of the heat exchange medium, the opening positions of the reflux injection component are evenly arranged, which can further improve the uniformity of the temperature of the heat exchange medium. In addition, after use, the heat exchange medium can be directly introduced into the liquid collecting tank 10 by using the circulation pump 6 to realize the automatic emptying of the heat exchange medium, which greatly reduces the labor intensity of the operator. It should be pointed out that the low-temperature bath body used in the scheme includes but is not limited to the DC series low-temperature constant temperature bath produced by Nanjing Shunma Instrument Equipment Co., Ltd.

[0018] In the specific implementation process, the above-mentioned reflux injection component includes a symmetrically arranged U-shaped pipeline 11, one end of the U-shaped pipeline 11 is connected to the circulation pipe 8 through a three-way joint 12, and injection pipes 13 are evenly installed on the lower side of the U-shaped pipeline 11. The U-shaped pipeline 11 is symmetrically arranged and connected to the circulation pipe 8 through the three-way joint 12. The heat exchange medium is injected into the U-shaped pipeline 11 through the circulation pipe 8 and the three-way joint 12, and is further injected into the tank body 2 through the injection pipe 13, which can further improve the uniformity of the heat exchange medium temperature.

[0019] In the specific implementation process, a grid baffle 14 is set at the upper opening of the above-mentioned collecting tank 4 to effectively prevent external foreign matter from entering the collecting tank 4 and causing blockage of the circulation pipe 8; a conical bucket 15 is set at the lower part of the collecting tank 4 to improve the flow efficiency of the heat exchange medium.

[0020] During the specific implementation process, a liquid supply pump 16 is connected to one side of the above-mentioned liquid collecting tank 10, and the outlet end of the liquid supply pump 16 is connected to the circulation pipe 8 through the liquid supply pipe 17. A control valve 18 and an electromagnetic flowmeter 19 are installed on the liquid supply pipe 17. Before the equipment is used, the heat exchange medium in the liquid storage tank can be automatically supplied to the tank body 2 through the liquid supply pump 16, and the control valve 18 and the electromagnetic flowmeter 19 can be used to adjust and measure the amount of injected heat exchange medium.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low temperature bath liquid cooling circulation device, comprising a low temperature bath body, characterized in that: The trough body of the low-temperature bath body is a rectangular trough structure, a magnetic stirring mechanism is arranged at the bottom of the trough body, a liquid collecting trough is arranged below the magnetic stirring mechanism, one side of the liquid collecting trough is connected to the liquid inlet end of the circulation pump through a liquid guide tube, the liquid outlet end of the circulation pump is connected to a three-way control valve, one outlet of the three-way control valve is connected to a circulation pipe, a reflux injection assembly is arranged inside the trough body, one end of the reflux injection assembly is connected to the circulation pipe, the other outlet of the three-way control valve is connected to a drain pipe, and the drain pipe is connected to the liquid collecting tank.

2. A low temperature bath liquid cooling circulation device according to claim 1, characterized in that: The reflux injection assembly comprises a symmetrically arranged U-shaped pipeline, one end of the U-shaped pipeline is connected to the circulation pipe through a three-way joint, and injection pipes are evenly installed on the lower side of the U-shaped pipeline.

3. A low temperature bath liquid cooling circulation device according to claim 1, characterized in that: A grid baffle is arranged at the opening position of the upper end of the liquid collecting tank.

4. A low temperature bath liquid cooling circulation device according to claim 1, characterized in that: A cone-shaped bucket is arranged at the lower part of the liquid collecting tank.

5. The low-temperature bath liquid cooling circulation device according to claim 1, characterized in that: A liquid supply pump is connected to one side of the liquid collecting tank, and the outlet end of the liquid supply pump is connected to the circulation pipe through a liquid supply pipe, and a control valve and an electromagnetic flowmeter are installed on the liquid supply pipe.

6. A low temperature bath liquid cooling circulation device according to claim 1, characterized in that: A drain valve is arranged at the bottom of the liquid collecting tank.

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