CN214893829U - Vacuum oil injection system - Google Patents
Vacuum oil injection system Download PDFInfo
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- CN214893829U CN214893829U CN202120755907.4U CN202120755907U CN214893829U CN 214893829 U CN214893829 U CN 214893829U CN 202120755907 U CN202120755907 U CN 202120755907U CN 214893829 U CN214893829 U CN 214893829U
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Abstract
The utility model discloses a vacuum oil filling system, including the oil cup, be equipped with silicon oil in the oil cup, this system still includes accuse gas valve subassembly and accuse oil valve subassembly, the part that the upper end of oil cup is higher than silicon oil liquid face is connected with the diffusion pump through accuse gas valve subassembly, vacuum pump and air collecting chamber, the lower extreme of oil cup is less than the part and the air collecting chamber of silicon oil liquid level and passes through accuse oil valve subassembly and external intercommunication, the measurement meter dress is on the oil-out of accuse oil valve subassembly, carry out evacuation processing to the measurement meter through the control switch to accuse gas valve subassembly by vacuum pump and diffusion pump, the vacuum of this vacuum mode is very improved than original mode, then fill silicon oil to the measurement meter from the oil cup by accuse oil valve subassembly, it is effectual to fill.
Description
Technical Field
The utility model relates to an oiling device technical field especially relates to a vacuum oiling system.
Background
Pressure differential pressure transmitter is a high accuracy, the high-reliability precision measurement instrument who is used for fluid pressure in the control pipeline, in order to guarantee its precision measurement's effect, need pour into silicon oil in the gauge on the pressure differential pressure transmitter after the evacuation, adopts the mode that directly fills silicon oil after the evacuation of vacuum pump at present more, but this kind of mode evacuation time is long, and sometimes can not reach the vacuum oil filling effect of needs.
Therefore, those skilled in the art are dedicated to develop a vacuum oil injection system with good vacuum effect.
Disclosure of Invention
In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that a vacuum oil injection system that vacuum effect is good is provided.
In order to realize the above object, the utility model provides a vacuum oil filling system, including the oil cup, be equipped with silicon oil in the oil cup, still include accuse valve subassembly and accuse valve subassembly, the upper end of oil cup is higher than the part of silicon oil liquid level passes through accuse valve subassembly is connected with diffusion pump, vacuum pump and air collecting chamber, the lower extreme of oil cup is less than the part of silicon oil liquid level with the air collecting chamber passes through accuse valve subassembly and external intercommunication.
The gas control valve component comprises a vacuum pump gas outlet valve, a diffusion pump gas inlet valve, a diffusion pump gas outlet valve, an oil cup gas outlet valve and a gas collecting chamber valve, wherein the gas outlet end of the diffusion pump gas inlet valve and the gas outlet end of the vacuum pump gas outlet valve are connected with the gas extraction opening of the vacuum pump, the gas inlet end of the diffusion pump gas inlet valve is connected with the gas outlet of the diffusion pump, the gas inlet end of the vacuum pump gas outlet valve is connected with the gas inlet end of the diffusion pump gas outlet valve, the gas outlet end of the gas collecting chamber valve is connected with the gas outlet end of the oil cup gas outlet valve, and the gas inlet end of the oil cup gas outlet valve is connected with the part, higher than the liquid level of the silicon oil, of the oil cup gas outlet valve.
The oil control valve component comprises an oil filling valve of the gas collection chamber and at least two oil-gas communication valves, the oil outlet end of the oil filling valve of the gas collection chamber is connected with the gas collection chamber, the oil inlet end of the oil filling valve of the gas collection chamber is connected with the part, lower end of the oil cup, of which the liquid level is lower than that of the silicone oil, the oil inlet end of the oil-gas communication valve is connected with the gas collection chamber, and the oil outlet end of the oil-gas communication valve is communicated with the outside.
The magnetic rod is placed in the oil cup, the oil cup is placed on a magnetic heating stirrer, and the magnetic heating stirrer drives the magnetic rod to rotate.
And the air extraction opening of the diffusion pump is also connected with an ionization gauge.
The upper end surface of the diffusion pump is wrapped with a water-cooling pipe, an inlet of the water-cooling pipe is connected with a circulating water pump, and outlets of the circulating water pump and the water-cooling pipe are immersed in a water tank.
The bottom of the diffusion pump is provided with a heater.
And a vacuum meter is arranged on the vacuum pump.
The utility model has the advantages that: the utility model discloses a vacuum oil filling system, including the oil cup, be equipped with silicon oil in the oil cup, this system still includes accuse gas valve subassembly and accuse oil valve subassembly, the part that the upper end of oil cup is higher than silicon oil liquid level is connected with the diffusion pump through accuse gas valve subassembly, vacuum pump and air collecting chamber, the part that the lower extreme of oil cup is less than the silicon oil liquid level and air collecting chamber pass through accuse oil valve subassembly and external intercommunication, the gauge dress is on the oil-out of accuse oil valve subassembly, carry out evacuation processing to the gauge through the control switch to accuse gas valve subassembly by vacuum pump and diffusion pump, the vacuum of this vacuum mode is very improved than original mode, then fill silicon oil to the gauge by accuse oil valve subassembly follow oil cup, it is effectual to fill.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein it is noted that, in the description of the invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in figure 1, a vacuum oil filling system comprises an oil cup 3, silicone oil 18 is filled in the oil cup 3, the vacuum oil filling system further comprises an air control valve component and an oil control valve component, the part, higher than the liquid level of the silicone oil 18, of the upper end of the oil cup 3 is connected with a diffusion pump 1, a vacuum pump 2 and an air collecting chamber 4 through the air control valve component, the part, lower than the liquid level of the silicone oil 18, of the lower end of the oil cup 3 and the air collecting chamber 4 are communicated with the outside through the oil control valve component, a measuring meter is arranged on an oil outlet of the oil control valve component, the vacuum pump and the diffusion pump are used for carrying out vacuumizing treatment on the measuring meter through control switching of the air control valve component, the vacuum degree of the vacuum mode is greatly improved compared with that of an original mode, then the oil control valve component is used for filling silicone oil into the measuring meter from the oil cup, and the filling effect is good.
In this embodiment, the gas control valve assembly includes a vacuum pump gas outlet valve 5, a diffusion pump gas inlet valve 6, a diffusion pump gas outlet valve 7, an oil cup gas outlet valve 8 and a gas collecting chamber valve 9, the gas outlet end of the diffusion pump gas inlet valve 6 and the gas outlet end of the vacuum pump gas outlet valve 5 are connected with the gas extraction opening of the vacuum pump 2, the gas inlet end of the diffusion pump gas inlet valve 6 is connected with the gas outlet of the diffusion pump 1, the gas inlet end of the vacuum pump gas outlet valve 5 is connected with the gas inlet end of the diffusion pump gas outlet valve 7, the gas outlet end of the gas collecting chamber valve 9 and the gas outlet end of the oil cup gas outlet valve 8, the gas inlet end of the gas collecting chamber valve 9 is connected with the gas collecting chamber 4, and the gas inlet end of the oil cup gas outlet valve 8 is connected with the portion of the upper end of the oil cup 3 higher than the liquid level of the silicone oil 18; the oil control valve component comprises an air collection chamber oil injection valve 10 and at least two oil-gas communication valves 11, the oil outlet end of the air collection chamber oil injection valve 10 is connected with an air collection chamber 4, the oil inlet end of the air collection chamber oil injection valve 10 is connected with the part, lower than the liquid level of the silicon oil 18, of the lower end of the oil cup 3, the oil inlet end of the oil-gas communication valve 11 is connected with the air collection chamber 4, and the oil outlet end of the oil-gas communication valve 11 is communicated with the outside.
In order to ensure that the silicone oil is not solidified, a magnetic bar is placed in the oil cup 3, the oil cup 3 is placed on a magnetic heating stirrer 12, and the magnetic heating stirrer 12 drives the magnetic bar to rotate.
The extraction opening of the diffusion pump 1 is further connected with an ionization gauge 13, the ionization gauge 13 measures the vacuum degree of the extraction opening of the diffusion pump 1, a vacuum meter is arranged on the vacuum pump 2, and the vacuum meter displays the degree of vacuum reached by the vacuum pump 2 in real time.
The upper end surface of diffusion pump 1 has wrapped up water-cooling tube 14, and water-cooling tube 14's entry linkage circulating water pump 15, and circulating water pump 15 and water-cooling tube 14's export all submerge in a water tank 16, and heater 17 is installed to the bottom of diffusion pump 1, improves the vacuum effect.
The utility model discloses a theory of operation is:
firstly, a magnetic bar is placed in an oil cup 3, a part of silicone oil 18 is poured into the oil cup 3, and the liquid level of the silicone oil 18 is ensured to be lower than the air inlet end of an exhaust valve 8 of the oil cup; then, a plurality of measuring meters are respectively arranged on oil outlets of a plurality of oil-gas communication valves 11, at least one oil-gas communication valve 11 is left to be specially used for communicating with the outside atmosphere for standby without being provided with a measuring meter, and the oil-gas communication valve is in a closed state under a normal state.
And secondly, filling water into a water tank 16, starting a circulating water pump 15, a heater 17, a diffusion pump 1, a vacuum pump 2 and a magnetic heating stirrer 12, driving a magnetic rod in an oil cup 3 to rotate and stir silicon oil 18 by the magnetic heating stirrer 12, closing a diffusion pump air inlet valve 6, a diffusion pump air outlet valve 7, an oil cup exhaust valve 8, a gas collection chamber valve 9, a gas collection chamber oil inlet valve 10 and all oil-gas communication valves 11, opening a vacuum pump air outlet valve 5, and vacuumizing a part of pipelines by the vacuum pump 2.
And step three, after opening the vacuum pump air outlet valve for 5 minutes, closing the vacuum pump air outlet valve 5, opening the diffusion pump air inlet valve 6, the diffusion pump air outlet valve 7, the oil cup exhaust valve 8, the gas collection chamber valve 9 and the oil-gas communication valve 11 provided with the measuring meter, vacuumizing the gas collection chamber 4, the oil cup 3 and the measuring meter by the diffusion pump 1 and the vacuum pump 2, wherein gas in the system has two flow paths, and the first flow path sequentially comprises the following steps: the device comprises a measuring meter, an oil-gas communication valve 11 provided with the measuring meter, a gas collection chamber 4, a gas collection chamber valve 9, a diffusion pump air outlet valve 7, a diffusion pump 1, a diffusion pump air inlet valve 6 and a vacuum pump 2, and finally the oil-gas communication valve is pumped into the atmosphere by the vacuum pump; the second flow path is in turn: the oil cup 3, the oil cup exhaust valve 8, the diffusion pump exhaust valve 7, the diffusion pump 1, the diffusion pump intake valve 6 and the vacuum pump 2 are finally pumped into the atmosphere by the vacuum pump.
And fourthly, when the vacuum expresses a set vacuum value, closing the gas collecting chamber valve 9, opening the gas collecting chamber oil injection valve 10, allowing the silicone oil in the oil cup 3 to sequentially flow through the gas collecting chamber valve 9, the gas collecting chamber 4 and the oil-gas communication valve 11 with the measuring meter under the action of negative pressure and then flow into the measuring meter, and closing the oil-gas communication valve 11 with the measuring meter after the silicone oil in the measuring meter is filled, thus finishing the filling. However, in this step, silicone oil sometimes remains in the gas collection chamber 4 and is not filled into the meter, at this time, the spare oil-gas communication valve 11 is opened to communicate with the external atmosphere, and the silicone oil in the gas collection chamber 4 is forced to be filled into the meter due to the external atmospheric pressure, so that the meter is filled.
And in the last step, after the filling operation is finished, closing the air collecting chamber oil injection valve 10 to completely discharge silicon oil in the air collecting chamber 4 and the oil-gas communication valve 11, then closing all valves except the vacuum pump air outlet valve 5, then opening the vacuum pump air outlet valve 5 to discharge residual air in the system, ensuring cleanness, and finally closing the diffusion pump 1, the vacuum pump 2, the circulating water pump 15, the heater 17 and the magnetic heating stirrer 12.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. A vacuum oil filling system comprises an oil cup (3), wherein silicone oil (18) is filled in the oil cup (3), and the vacuum oil filling system is characterized in that: the silicone oil pump is characterized by further comprising an air control valve assembly and an oil control valve assembly, wherein the part, higher than the liquid level of the silicone oil (18), of the upper end of the oil cup (3) is connected with a diffusion pump (1), a vacuum pump (2) and an air collection chamber (4) through the air control valve assembly, and the part, lower than the liquid level of the silicone oil (18), of the lower end of the oil cup (3) and the air collection chamber (4) are communicated with the outside through the oil control valve assembly.
2. The vacuum oiling system as defined in claim 1, wherein: the gas control valve component comprises a vacuum pump gas outlet valve (5), a diffusion pump gas inlet valve (6), a diffusion pump gas outlet valve (7), an oil cup gas outlet valve (8) and a gas collection chamber valve (9), the air outlet end of the diffusion pump air inlet valve (6) and the air outlet end of the vacuum pump air outlet valve (5) are connected with the air pumping port of the vacuum pump (2), the air inlet end of the diffusion pump air inlet valve (6) is connected with the air outlet of the diffusion pump (1), the air inlet end of the vacuum pump air outlet valve (5) is connected with the air inlet end of the diffusion pump air outlet valve (7), the air outlet end of the air collection chamber valve (9) and the air outlet end of the oil cup exhaust valve (8), the air inlet end of the air collection chamber valve (9) is connected with the air collection chamber (4), the air inlet end of the oil cup exhaust valve (8) is connected with the part, higher than the liquid level of the silicone oil (18), of the upper end of the oil cup (3).
3. The vacuum oiling system as defined in claim 1 or 2, wherein: the oil control valve component comprises a gas collection chamber oil injection valve (10) and at least two oil-gas communication valves (11), the oil outlet end of the gas collection chamber oil injection valve (10) is connected with the gas collection chamber (4), the oil inlet end of the gas collection chamber oil injection valve (10) is lower than the lower end of the oil cup (3) and is connected with the part of the liquid level of silicon oil (18), the oil inlet end of the oil-gas communication valve (11) is connected with the gas collection chamber (4), and the oil outlet end of the oil-gas communication valve (11) is communicated with the outside.
4. The vacuum oiling system as defined in claim 1, wherein: the magnetic rod is placed in the oil cup (3), the oil cup (3) is placed on a magnetic heating stirrer (12), and the magnetic heating stirrer (12) drives the magnetic rod to rotate.
5. The vacuum oiling system as defined in claim 1, wherein: the air extraction opening of the diffusion pump (1) is also connected with an ionization gauge (13).
6. The vacuum oiling system as defined in claim 1, wherein: the upper end surface of the diffusion pump (1) is wrapped with a water-cooling pipe (14), an inlet of the water-cooling pipe (14) is connected with a circulating water pump (15), and outlets of the circulating water pump (15) and the water-cooling pipe (14) are immersed in a water tank (16).
7. The vacuum oiling system as defined in claim 6, wherein: and a heater (17) is arranged at the bottom of the diffusion pump (1).
8. The vacuum oiling system as defined in claim 1, wherein: and a vacuum meter is arranged on the vacuum pump (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120755907.4U CN214893829U (en) | 2021-04-13 | 2021-04-13 | Vacuum oil injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120755907.4U CN214893829U (en) | 2021-04-13 | 2021-04-13 | Vacuum oil injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214893829U true CN214893829U (en) | 2021-11-26 |
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ID=78949635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120755907.4U Active CN214893829U (en) | 2021-04-13 | 2021-04-13 | Vacuum oil injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214893829U (en) |
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2021
- 2021-04-13 CN CN202120755907.4U patent/CN214893829U/en active Active
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