CN113339242A - Continuous vacuum gas-liquid separation device - Google Patents
Continuous vacuum gas-liquid separation device Download PDFInfo
- Publication number
- CN113339242A CN113339242A CN202110582684.0A CN202110582684A CN113339242A CN 113339242 A CN113339242 A CN 113339242A CN 202110582684 A CN202110582684 A CN 202110582684A CN 113339242 A CN113339242 A CN 113339242A
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- Prior art keywords
- gas
- vacuum
- liquid
- liquid separation
- storage tank
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
Abstract
The invention relates to the technical field of vacuum, in particular to a continuous vacuum gas-liquid separation device, which comprises a gas-liquid separation tank main body, a gas-liquid separation tank liquid discharge three-way valve, a vacuum liquid storage tank liquid discharge valve, a vacuum liquid storage tank vacuum breaking gas inlet pipe and a gas-liquid gravity extension separation protection pipe, wherein the gas-liquid separation tank main body is provided with a gas-liquid separation tank liquid discharge three-way valve; the gas-liquid gravity extension separation protection pipe is positioned in the gas-liquid separation tank main body, a gas-liquid vacuum inlet is formed in the top end of the gas-liquid separation tank main body, the top end of the gas-liquid gravity extension separation protection pipe is communicated with the gas-liquid vacuum inlet, and a gas vacuum outlet is communicated with one side of the gas-liquid separation tank main body; the device can realize continuous vacuum gas-liquid separation, thereby achieving the functions of protecting the vacuum pump, continuously operating and realizing gas-liquid separation.
Description
Technical Field
The invention relates to the technical field of vacuum, in particular to a continuous vacuum gas-liquid separation device.
Background
Many modern high precision products must be manufactured using varying degrees of vacuum at certain stages of the manufacturing process, such as semiconductors, hard disks, lenses, etc.; by utilizing the characteristic of low density of gas molecules in vacuum, various electric vacuum devices such as electric light source, electronic tube, etc. can be made. The vacuum environment is favorable for welding and smelting of certain metals, the fractionation and purification of certain low-melting-point metals such as Mg, Li, Zn and the like, the reduction of oxides of certain active metals such as Ca, Li, Cs and the like, the low-temperature dehydration under the vacuum environment (1-10 < -1 > Pa), and the vacuum drying are successfully used for concentrating food, milk powder, manufacturing plasma and the like. Isotope separation, large-scale integrated circuit processing, film coating and the like are also required to be carried out in a vacuum environment. In scientific research, such as surface physical experiments, various accelerators, fusion reactions, space environment simulation and the like, vacuum can not be separated. Vacuum is also commonly used in industrial cleaning, industrial production and industrial chemical industry; such as vacuum filtration, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum moisture regain, vacuum degassing and the like.
A method of creating a vacuum in laboratories and factories is to use a pump to draw air in a closed space to achieve a certain degree of vacuum. Generally, vacuum technology including vacuum is mainly achieved by using a piston pump, a rotary vane pump and the like to change the volume of a pump body through the continuous movement of a piston or a rotary vane, and exhaust gas to obtain vacuum.
Therefore, in industrial production, industrial cleaning and other fields requiring vacuum utilization, the simplest and most direct way to obtain vacuum is to pump out the gas in a closed space through a pump body to obtain a corresponding vacuum environment.
However, under the condition of relatively large water vapor environment in current industrial production and industrial cleaning, if water vapor directly enters the rotary vane pump, emulsification of pump oil is caused, and not only the performance of the pump is influenced, but also the pump body is damaged; for the vacuum pump with higher vacuum degree, when the vacuum pump operates in the environment, the phenomenon of cavitation usually occurs when water vapor directly enters the interior of the pump body, and the obvious sign of the phenomenon is noise and vibration in the pump. Cavitation can cause damage to parts such as the pump body, impeller, etc., such that the pump cannot operate.
In order to protect a vacuum pump, a device capable of continuously separating gas and liquid in vacuum is designed, water vapor at the front section of the vacuum pump can be effectively removed, and the gas and liquid separation is realized, so that the operation of the vacuum pump is greatly protected.
Disclosure of Invention
The invention aims to solve the defect that water vapor directly enters a pump body in the prior art, and provides a continuous vacuum gas-liquid separation device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a continuous vacuum gas-liquid separation device is designed, which comprises a gas-liquid separation tank main body, a gas-liquid separation tank liquid discharge three-way valve, a vacuum liquid storage tank liquid discharge valve, a vacuum liquid storage tank vacuum breaking gas inlet pipe and a gas-liquid gravity extension separation protection pipe;
the gas-liquid gravity extension separation protection pipe is positioned in the gas-liquid separation tank main body, a gas-liquid vacuum inlet is formed in the top end of the gas-liquid separation tank main body, the top end of the gas-liquid gravity extension separation protection pipe is communicated with the gas-liquid vacuum inlet, and a gas vacuum outlet is communicated with one side of the gas-liquid separation tank main body;
the three-way liquid valve of the gas-liquid separation tank comprises A, B and C connectors, wherein A is communicated with the gas-liquid separation tank body, B is communicated with the vacuum breaking air inlet pipe of the vacuum liquid storage tank, C is communicated with the vacuum liquid storage tank, and the liquid discharge valve of the vacuum liquid storage tank is communicated with the vacuum liquid storage tank.
Preferably, a silencing filter is arranged at the end part of the vacuum breaking air inlet pipe of the vacuum liquid storage tank.
The continuous vacuum gas-liquid separation device provided by the invention has the beneficial effects that: the continuous vacuum gas-liquid separation device can realize continuous vacuum gas-liquid separation, thereby achieving the functions of protecting the vacuum pump, continuously operating and realizing gas-liquid separation.
Drawings
Fig. 1 is a schematic structural diagram of a continuous vacuum gas-liquid separation device provided by the invention.
In the figure: the device comprises a gas-liquid vacuum inlet 1, a gas vacuum outlet 2, a gas-liquid separation tank main body 3, a gas-liquid separation tank liquid discharge three-way valve 4, a vacuum liquid storage tank 5, a vacuum liquid storage tank liquid discharge valve 6, a vacuum liquid storage tank vacuum breaking gas inlet pipe 7, a silencing filter 8 and a gas-liquid gravity extension separation protection pipe 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a continuous vacuum gas-liquid separation device comprises a gas-liquid separation tank main body 3, a gas-liquid separation tank liquid discharge three-way valve 4, a vacuum liquid storage tank 5, a vacuum liquid storage tank liquid discharge valve 6, a vacuum liquid storage tank vacuum breaking gas inlet pipe 7 and a gas-liquid gravity extension separation protection pipe 9;
the gas-liquid gravity extension separation protection tube 9 is positioned inside the gas-liquid separation tank main body 3, the top end of the gas-liquid separation tank main body 3 is provided with a gas-liquid vacuum inlet 1, the gas-liquid vacuum inlet 1 is used for being connected with a device N to be vacuumized, the top end of the gas-liquid gravity extension separation protection tube 9 is communicated with the gas-liquid vacuum inlet 1, one side of the gas-liquid separation tank main body 3 is communicated with a gas vacuum outlet 2, and the gas vacuum outlet 2 is used for being connected with a gas inlet of a vacuum pump G;
the three-way liquid valve 4 of the gas-liquid separation tank comprises A, B and C, wherein A is communicated with the main body 3 of the gas-liquid separation tank, B is communicated with the vacuum breaking air inlet pipe 7 of the vacuum liquid storage tank, the end part of the vacuum breaking air inlet pipe 7 of the vacuum liquid storage tank is provided with a silencing filter 8, C is communicated with the vacuum liquid storage tank 5, and the liquid valve 6 of the vacuum liquid storage tank is communicated with the vacuum liquid storage tank 5.
The working principle is as follows:
the device N needing to be vacuumized is communicated with the gas-liquid vacuum inlet 1, the gas inlet of the vacuum pump G is connected with the gas vacuum outlet 2, and thus the device N needing to be vacuumized is connected with the vacuum pump G and the continuous vacuum gas-liquid separation device to form a whole.
After the vacuum pump G is started, a gas-liquid mixture in the device N to be vacuumized enters the gas-liquid gravity extension separation protection tube 9 through the gas-liquid vacuum inlet 1, and under the action of gravity, the gas-liquid mixture in the gas-liquid gravity extension separation protection tube 9 enters the gas-liquid separation tank main body 3;
in the process that the gas-liquid mixture passes through the gas-liquid gravity extension separation protection pipe 9, because the densities of gas and liquid in the liquid mixture are different, the liquid firstly enters the bottom of the gas-liquid separation tank main body 3, the gas can be sucked from the gas vacuum outlet 2 by the vacuum pump G after entering the gas-liquid separation tank main body 3, and the liquid is left at the bottom of the gas-liquid separation tank main body 3, so that the gas and the liquid in the gas-liquid mixture are separated, and the liquid is prevented from entering the vacuum pump G to damage a pump head.
Liquid is collected at the bottom of the gas-liquid separation tank main body 3 and is discharged, and the working process is as follows:
first, the liquid discharge three-way valve 4 of the gas-liquid separation tank is turned on a → C, turned off a → B, and turned off B → C; the drain valve 6 of the vacuum liquid storage tank is in a closed state;
the vacuum pump G continuously pumps away the separated gas under the continuous operation, the separated liquid can enter the vacuum liquid storage tank 5 under the influence of gravity, and at the moment, the liquid discharge valve 6 of the vacuum liquid storage tank is closed, so that the continuous vacuum gas-liquid separation device is equivalent to the continuous vacuum gas-liquid separation device with the unchanged internal environment.
Secondly, when the amount of liquid in the vacuum liquid storage tank 5 reaches a threshold value, the liquid discharge three-way valve 4 of the gas-liquid separation tank is closed A → C, closed A → B and communicated B → C; the drain valve 6 of the vacuum liquid storage tank is in a closed state;
b → C, the vacuum liquid storage tank 5 is communicated with the outside through a vacuum breaking air inlet pipe 7 of the vacuum liquid storage tank, the vacuum liquid storage tank 5 is used for silencing external air through a silencing filter 8 by negative pressure, the air is sucked through the vacuum breaking air inlet pipe 7 of the vacuum liquid storage tank after noise reduction, the negative pressure in the vacuum liquid storage tank 5 is gradually restored to normal pressure, and the pressure in the gas-liquid separation tank main body 3 is ensured not to be influenced when the liquid discharged from the vacuum liquid storage tank 5 is restored to the normal pressure.
Finally, after the negative pressure in the vacuum liquid storage tank 5 becomes the normal pressure, the liquid discharge three-way valve 4 of the gas-liquid separation tank is closed A → C, closed A → B and communicated B → C; the drain valve 6 of the vacuum liquid storage tank is in an open state;
the liquid in the vacuum liquid storage tank 5 is discharged from a liquid discharge valve 6 of the vacuum liquid storage tank under the action of gravity;
after the liquid in the vacuum liquid storage tank 5 is completely discharged, the liquid discharge valve 6 of the vacuum liquid storage tank is closed again, and the liquid discharge three-way valve 4 of the gas-liquid separation tank is restored to the state of A → C conduction, A → B closing and B → C closing.
The actions are continuously and circularly operated, but the vacuum pump G does not stop running, and continuous vacuum gas-liquid separation can be realized; thereby achieving the functions of protecting the vacuum pump G, continuously operating and realizing gas-liquid separation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. A continuous vacuum gas-liquid separation device is characterized by comprising a gas-liquid separation tank main body (3), a gas-liquid separation tank liquid discharge three-way valve (4), a vacuum liquid storage tank (5), a vacuum liquid storage tank liquid discharge valve (6), a vacuum breaking gas inlet pipe (7) of the vacuum liquid storage tank and a gas-liquid gravity extension separation protection pipe (9);
the gas-liquid gravity extension separation protection pipe (9) is positioned inside the gas-liquid separation tank main body (3), a gas-liquid vacuum inlet (1) is formed in the top end of the gas-liquid separation tank main body (3), the top end of the gas-liquid gravity extension separation protection pipe (9) is communicated with the gas-liquid vacuum inlet (1), and a gas vacuum outlet (2) is communicated with one side of the gas-liquid separation tank main body (3);
the liquid discharge three-way valve (4) of the gas-liquid separation tank comprises A, B and C connectors, wherein A is communicated with the gas-liquid separation tank main body (3), B is communicated with the vacuum breaking air inlet pipe (7) of the vacuum liquid storage tank, C is communicated with the vacuum liquid storage tank (5), and the liquid discharge valve (6) of the vacuum liquid storage tank is communicated with the vacuum liquid storage tank (5).
2. The continuous vacuum gas-liquid separation device according to claim 1, wherein a noise reduction filter (8) is provided on the end of the vacuum breaking inlet pipe (7) of the vacuum liquid storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110582684.0A CN113339242A (en) | 2021-05-27 | 2021-05-27 | Continuous vacuum gas-liquid separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110582684.0A CN113339242A (en) | 2021-05-27 | 2021-05-27 | Continuous vacuum gas-liquid separation device |
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| Publication Number | Publication Date |
|---|---|
| CN113339242A true CN113339242A (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110582684.0A Pending CN113339242A (en) | 2021-05-27 | 2021-05-27 | Continuous vacuum gas-liquid separation device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204798996U (en) * | 2015-07-03 | 2015-11-25 | 南京阿克赛斯科技有限公司 | A gas -liquid separation for vacuum system |
| CN109268237A (en) * | 2018-08-03 | 2019-01-25 | 广东长盈精密技术有限公司 | A kind of gas-liquid separator for CNC equipment |
-
2021
- 2021-05-27 CN CN202110582684.0A patent/CN113339242A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204798996U (en) * | 2015-07-03 | 2015-11-25 | 南京阿克赛斯科技有限公司 | A gas -liquid separation for vacuum system |
| CN109268237A (en) * | 2018-08-03 | 2019-01-25 | 广东长盈精密技术有限公司 | A kind of gas-liquid separator for CNC equipment |
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Application publication date: 20210903 |