Vacuum oil pump capable of prolonging service life and oil-water separation device thereof
By installing an oil-water separation device on the vacuum oil pump, the layering principle of the separation tank is used to separate the moisture in the oil, which solves the problem of the vacuum oil pump being susceptible to water contamination, extends the service life and reduces maintenance costs.
Patent Information
- Application Number
- CN202421554356.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-03
AI Technical Summary
The vacuum oil pumps in existing freeze-dryers are easily contaminated by water during use, resulting in reduced oil quality, increased wear of parts, shortened service life, and regular oil changes are required, which increases costs.
An oil-water separation device is designed, including a separation tank, a liquid inlet pipe, a return pipe and a drain pipe. The oil and water are separated through the layering principle of the separation tank, and the water is discharged through the drain pipe, thereby extending the service life of the vacuum pump.
Effectively separate the moisture in the oil, extend the service life of the vacuum pump, reduce maintenance costs, and reduce the frequency of oil replacement.
Smart Images
Figure CN222871406U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of freeze dryers, in particular to a vacuum oil pump with a prolonged service life and an oil-water separation device thereof. Background Art
[0002] Freeze drying is a drying technology that uses the principle of sublimation. It is a process in which the dried material is quickly frozen at low temperature, and then the frozen water molecules are directly sublimated into water vapor and escape under a vacuum environment. The freeze dryer uses this principle. Existing freeze dryers generally use vacuum oil pumps to evacuate the freeze drying chamber. However, water often flows into the vacuum oil pump when it is in use, contaminating the oil in the pump body and reducing the quality of the oil, which will cause greater wear and tear on the parts in the pump, causing damage and reducing the service life. At the same time, the vacuum oil pump also needs to be changed regularly, which adds a lot of costs. Utility Model Content
[0003] In view of the above problems, the first purpose of the utility model is to provide a vacuum oil pump and an oil-water separation device with extended service life, which can effectively separate the water in the oil, extend the service life of the equipment and reduce maintenance costs.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: an oil-water separation device for a vacuum oil pump with a prolonged service life, comprising a separation tank, the upper part of which is connected to a liquid inlet pipe and an oil return pipe through a tee, the lower part of which is connected to a drain pipe, and the lower part of the separation tank is made of a transparent material.
[0005] In the above technical solution, a control valve is installed on the drain pipe.
[0006] In the above technical solution, the separation tank includes an upper tank body and a lower tank body, and the lower tank body is made of a transparent material.
[0007] In view of the above problems, the second object of the utility model is to provide a vacuum oil pump, comprising a pump body, on which the above-mentioned oil-water separation device is provided, and the separation tank is connected to the oil inlet at the upper part of the pump body and the mixed liquid outlet at the lower part of the pump body through a tee.
[0008] In the above technical solution, an observation window is provided at the lower part of the pump body.
[0009] To sum up, the technical solution of the utility model has the following beneficial effects compared with traditional technical means: the utility model is an oil-water separation device arranged on a vacuum oil pump. When in use, the oil-water mixture at the bottom of the pump body is first discharged into the separation tank. Because oil and water are immiscible and the density of oil is much lower than that of water, they will gradually separate into layers. The oil floats on the upper layer and is gradually squeezed upward and flows back to the oil inlet from the return oil pipe, while the water always remains in the lower part of the separation tank. When the water in the separation tank accumulates to a certain extent, the control valve on the lower drain pipe is opened to discharge the water. This effectively separates the water in the oil. On the one hand, the service life of the vacuum pump is extended, and on the other hand, there is no need to replace all the oil, which greatly saves costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The foregoing and other objects, features and advantages of the present invention will become apparent from the following detailed description in conjunction with the accompanying drawings.
[0011] Figure 1 It is a three-dimensional structural schematic diagram of the freeze dryer in use state of the utility model;
[0012] Figure 2 This is a schematic diagram of the three-dimensional structure of the freeze dryer with one side of the shell removed;
[0013] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;
[0014] The numbers are as follows: 100, oil-water separation device; 200, separation tank; 210, upper tank body; 220, lower tank body; 300, tee; 310, liquid inlet pipe; 320, oil return pipe; 400, drain pipe; 410, control valve; 500, pump body; 510, oil inlet; 520, mixed liquid outlet; 600, freeze dryer. DETAILED DESCRIPTION
[0015] The following is an ideal embodiment of the utility model. Through the following description, relevant staff can make various changes and modifications without departing from the technical concept of the utility model. The technical scope of the utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
[0016] The utility model is further described with reference to the following drawings:
[0017] like Figure 3 As shown, an oil-water separation device 100 of a vacuum oil pump with a prolonged service life comprises a separation tank 200, the upper portion of the separation tank 200 is connected to a liquid inlet pipe 310 and an oil return pipe 320 via a tee 300, the lower portion of the separation tank 200 is connected to a drain pipe 400, and the lower portion of the separation tank 200 is made of transparent material.
[0018] The drain pipe 400 is equipped with a control valve 410. When the oil and water are separated, the control valve 410 can be opened to drain the water at the bottom, while the oil floating on the top is pushed into the oil return pipe 320 by hydraulic pressure before drainage.
[0019] The separation tank 200 includes an upper tank body 210 and a lower tank body 220 . The lower tank body 220 is made of a transparent material, so that the liquid in the separation tank 200 can be directly observed visually.
[0020] Embodiment 2:
[0021] like Figure 1 , 2 As shown, a vacuum oil pump has a pump body 500, on which the oil-water separation device 100 described in Example 1 is provided, and the separation tank 200 is connected to the oil inlet 510 at the upper part of the pump body 500 and the mixed liquid outlet 520 at the lower part of the pump body 500 through a tee 300 respectively.
[0022] The lower part of the pump body 500 is provided with an observation window, through which the quality of the oil in the pump body 500 can be seen. According to the quality of the oil, the oil-water separator 100 is used regularly to remove water from the oil.
[0023] When the utility model is used, the compressor is first started, the heat conduction coil cooperates with the fan to refrigerate, freezes the material into ice crystals, then the vacuum pump evacuates, and finally the compressor changes mode, the heating layer plate sublimates the water in the material, and realizes freeze drying.
[0024] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An oil-water separation device for a vacuum oil pump with a prolonged service life, characterized in that: The utility model has a separation tank, the upper part of which is connected with a liquid inlet pipe and an oil return pipe through a tee, the lower part of which is connected with a drain pipe, and the lower part of which is made of transparent material.
2. The oil-water separation device for a vacuum oil pump with a prolonged service life according to claim 1, characterized in that: A control valve is arranged on the drain pipe.
3. The oil-water separation device for a vacuum oil pump with a prolonged service life according to claim 1, characterized in that: The separation tank comprises an upper tank body and a lower tank body, and the lower tank body is made of a transparent material.
4. A vacuum oil pump, characterized in that: A pump body is provided on which the oil-water separation device according to claim 1 or 3 is arranged, and the separation tank is connected to the oil inlet at the upper part of the pump body and the mixed liquid outlet at the lower part of the pump body respectively through a tee.
5. The vacuum oil pump according to claim 4, characterized in that: An observation window is arranged at the lower part of the pump body.