CN216278489U - Vacuumizing system and sealing oil supply device - Google Patents
Vacuumizing system and sealing oil supply device Download PDFInfo
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- CN216278489U CN216278489U CN202120442856.XU CN202120442856U CN216278489U CN 216278489 U CN216278489 U CN 216278489U CN 202120442856 U CN202120442856 U CN 202120442856U CN 216278489 U CN216278489 U CN 216278489U
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Abstract
The application discloses a vacuum pumping system, which comprises a rotary vane vacuum pump and an air oil separator and also comprises an oil drum; wherein: the gas-oil separator is arranged at the inlet of the rotary vane vacuum pump; an oil accumulation chamber is arranged in the gas-oil separator and is used for accommodating oil separated from gas sucked into the inlet by the gas-oil separator from the rotary vane vacuum pump; the oil drum is detachably connected with the oil accumulation chamber; an oil discharge door capable of being opened and closed is arranged at the joint of the oil drum and the oil accumulation chamber; the oil drum is in when the fuel outlet door is in the open mode hold from the interior outflow of ponding. Through this application scheme keep vacuum oil tank's vacuum not reduce when having realized carrying on the oil extraction of vacuum pump. The application also discloses a sealing oil supply unit.
Description
Technical Field
The application relates to the technical field of oil supply devices, in particular to a vacuum pumping system and a sealing oil supply device.
Background
The sealing oil used for the shaft seal of the generator comes from a sealing oil supply device which comprises a vacuum oil tank provided with a vacuum pump, a hydrogen side oil return tank and a sealing oil storage tank. The oil in the vacuum oil tank is taken from a sealed oil reservoir, and a float level control valve (float valve) in the vacuum oil tank is capable of maintaining the oil level in the oil tank at a predetermined level, and when the oil level is low, the valve is capable of drawing out oil from the sealed oil reservoir and a hydrogen-side oil return tank to replenish the oil.
The vacuum oil tank is provided with a vacuum pump which is used for removing air and hydrogen in the sealing oil in the vacuum oil tank. The vacuum pump can keep the sealing oil in the vacuum oil tank in a vacuum state, and can also pump out most of gas absorbed when the sealing oil is in contact with hydrogen and air, so that the reduction of the purity of the hydrogen in the generator is avoided. The vacuum pump can take out sealed oil simultaneously when taking out gas, and the vacuum pump inspiratory sealed oil need stop the operation of vacuum pump and carry out the oil extraction when reaching a quantitative, and this vacuum that can lead to in the vacuum oil tank reduces to lead to potential safety hazards such as hydrogen purity reduction in the generator.
How to avoid the reduction of the vacuum degree of the vacuum oil tank caused by the oil discharge of the vacuum pump is a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide an evacuation system to solve the problem that prior art exists because the vacuum pump oil extraction leads to the vacuum oil tank's vacuum to reduce.
In a first aspect, an embodiment of the present application provides a vacuum pumping system, including: the rotary vane vacuum pump and the gas oil separator also comprise an oil drum; wherein:
the gas-oil separator is arranged at the inlet of the rotary vane vacuum pump;
an oil accumulation chamber is arranged in the gas-oil separator and is used for accommodating oil separated from gas sucked into the inlet by the gas-oil separator from the rotary vane vacuum pump;
the oil drum is detachably connected with the oil accumulation chamber; an oil discharge door capable of being opened and closed is arranged at the joint of the oil drum and the oil accumulation chamber;
the oil drum is in when the fuel outlet door is in the open mode hold from the interior outflow of ponding.
Optionally, be provided with the observation window on the oil drum.
Optionally, the viewing window comprises a transparent upper cover.
Optionally, the transparent upper cover is made of organic glass.
Optionally, the transparent upper cover is fastened on the oil drum through a bolt, and a bolt hole of the bolt is a counter bore.
Optionally, the volume of the oil drum is 2-7 times of the volume of the oil accumulation chamber.
Optionally, the oil drum pass through both ends have the pipe of joint with the fuel outlet door links to each other.
Optionally, the gas-oil separator is connected to a vacuum oil tank, and the rotary vane vacuum pump sucks gas from the vacuum oil tank to the inlet.
Optionally, the system further comprises an exhaust filter arranged at the outlet of the rotary vane vacuum pump, wherein the exhaust filter is used for filtering oil in the gas exhausted from the rotary vane vacuum pump 2.
Optionally, the material of oil drum is stainless steel.
In a second aspect, an embodiment of the present application provides a seal oil supply device including the above-mentioned vacuum pumping system, including: the vacuum oil tank is provided with a floating ball liquid level control valve, when the oil level of the vacuum oil tank is lower than a preset oil level, the floating ball liquid level control valve leads oil out of the sealed oil storage tank and the hydrogen side oil return tank for supplement until the oil level of the vacuum oil tank reaches the preset oil level, and the vacuum oil tank is connected with the vacuumizing system.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
by adopting the vacuum-pumping system provided by the embodiment of the application, the oil barrel is detachably connected outside the oil accumulation chamber, so that the oil flowing out of the oil accumulation chamber can be contained and stored; after the oil drum is full of oil, carry out the oil extraction when the fuel outlet door is in the closed condition, keep the vacuum degree of vacuum oil tank not reduce when can realizing carrying out the oil extraction of vacuum pump.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a vacuum pumping system provided in an embodiment of the present application;
fig. 2 is the concrete structure schematic diagram of the oil drum that this application embodiment provided.
1-motor, 2-rotary vane vacuum pump, 3-gas-oil separator, 4-oil drum, 5-oil-accumulating chamber and 6-exhaust filter
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
As described above, when a certain amount of sealing oil is sucked by the conventional vacuum pump, the operation of the vacuum pump needs to be stopped to discharge the oil, which may reduce the vacuum degree in the vacuum oil tank, thereby causing potential safety hazards such as reduction in the purity of hydrogen gas in the generator. Based on this, this application embodiment provides a vacuum pumping system, can realize not reducing the vacuum of vacuum oil tank and carry out the oil extraction of vacuum pump. As shown in fig. 1, a specific structural diagram of the vacuum pumping system is shown, and the vacuum pumping system includes: rotary vane vacuum pump 2, gas-oil separator 3 and oil drum 4.
Wherein, the rotary vane vacuum pump 2 is connected with a motor shaft of the motor 1 through an elastic coupling structure. The rotary vane vacuum pump 2 is an oil seal rotary sliding vane pump, and the motor 1 is directly arranged on the pump shell of the rotary vane vacuum pump 2 by a flange. All bearings are sliding bearings and are lubricated by forced oil. The rotary vane vacuum pump 2 is used for removing air and hydrogen in the sealing oil in the vacuum oil tank, so that the sealing oil in the vacuum oil tank is kept in a vacuum state, most of gas absorbed when the sealing oil is in contact with the hydrogen and the air can be pumped out, and the reduction of the purity of the hydrogen in the generator is avoided.
The gas-oil separator 3 is arranged at the inlet of the rotary vane vacuum pump 2; an oil accumulation chamber 5 is arranged in the gas-oil separator 3, and the oil accumulation chamber 5 is used for accommodating oil separated from gas sucked into the inlet of the rotary vane vacuum pump 2 by the gas-oil separator 3.
As shown in fig. 2, which is a schematic diagram of a specific structure of an oil drum, the oil drum 4 is detachably connected with the oil accumulation chamber 5; moreover, an open-close accelerator is arranged at the joint of the oil drum 4 and the oil accumulation chamber 5; the oil drum 4 accommodates oil flowing out of the oil accumulation chamber 5 when the oil drain door is in an open state. The oil drum 4 is under vacuum (-30-40 kPa). By detachably connecting the oil drum 4 outside the oil accumulation chamber 5, oil separated from gas sucked by the rotary vane vacuum pump 2 can flow into the oil drum 4 through the oil accumulation chamber 5 and is stored in the oil drum 4; after the oil drum 4 is full of oil, the oil drain door discharges oil when being in a closed state. After the accumulated oil is removed from the oil drum 4, the oil drum 4 is connected to the oil accumulation chamber 5, and the oil discharge door is opened for continuous use. Therefore, the oil can be discharged without stopping the operation of the vacuum pump and maintaining the vacuum degree of the vacuum oil tank.
The volume of the oil drum 4 is 2-7 times of the volume of the oil accumulation chamber 5. For example, the volume of the oil drum 4 is 5 times of the volume of the oil accumulation chamber 5 of the gas-oil separator, and the oil discharge time can be increased to 15 months from 3 months when the oil drum is not arranged. The frequency of oil discharge is greatly reduced, and the vacuum degree of the system and the operation of equipment are not influenced. The shape of the oil drum 4 is not limited, and includes but is not limited to a cylinder, a cuboid, a cube, and the like. For example, a cylinder, with unlimited height and diameter, preferably 30-60cm in height and 10-20cm in diameter, for example, oil drum 4 50cm in height and 15cm in diameter. The oil drum 4 can be made of stainless steel, the thickness of the shell is preferably 4-10mm, such as 6mm, and the thickness of the upper cover is preferably 10-20mm, such as 12 mm.
Automatic flow to in oil drum 4 when having the trapped fuel in the ponding oil room 3, can observe through the transparent upper cover of oil drum 4 whether full oil, can close the fuel outlet door of ponding oil room when oil drum oil is full, pull down oil drum 4 and discharge ponding oil, then be connected to ponding oil room with oil drum 4 again, open the fuel outlet door and continue to use. The operation of the vacuum pump is not required to be stopped in the whole process, and the vacuum degree of the sealing oil system is not influenced. The operation of other equipment of the system is not involved, so that the system can be operated at any time.
Be provided with observation window 7 on oil drum 4, observation window 7 includes transparent upper cover. The transparent upper cover can be made of organic glass. The thickness of the transparent upper cover is not limited, and is preferably 5 to 15mm, for example 10 mm. In order to observe the oil level in the oil drum 4 conveniently, the observation window is arranged on the oil drum 4, so that the oil level condition in the oil drum 4 can be observed at any time.
The transparent upper cover is fastened on the oil drum 4 through a bolt 8, and a bolt hole of the bolt 8 is a counter bore. In order to ensure the sealing of the barrel and the negative pressure born by the barrel, a sealing gasket is additionally arranged between the transparent upper cover and the upper cover of the oil barrel 4 and is uniformly and tightly fixed by bolts, the number of the bolts is not limited, for example, six M8 bolts are uniformly and tightly fixed. The upper cover bolt hole of barrel is the counter bore to guarantee that the vacuum in the oil drum 4 can not destroyed by bolted connection.
The oil drum 4 is connected with the oil drain door through a connecting pipe 9, and the connecting pipe 9 can be a steel wire braided hose with movable joints at two ends.
The gas-oil separator 3 is connected to a vacuum tank, from which the rotary vane vacuum pump 2 sucks gas to an inlet of the rotary vane vacuum pump 2.
The vacuum pumping system further comprises an exhaust filter 6 arranged at the outlet of the rotary vane vacuum pump, and the exhaust filter 6 is used for filtering oil in the gas exhausted from the rotary vane vacuum pump 2.
By adopting the vacuum-pumping system provided by the embodiment of the application, the oil barrel is detachably connected outside the oil accumulation chamber, so that the oil flowing out of the oil accumulation chamber can be contained and stored; after the oil drum is full of oil, carry out the oil extraction when the fuel outlet door is in the closed condition, keep the vacuum degree of vacuum oil tank not reduce when can realizing carrying out the oil extraction of vacuum pump.
The embodiment of the present application further provides a sealing oil supply unit, include: the vacuum oil tank is provided with a floating ball liquid level control valve, when the oil level of the vacuum oil tank is lower than a preset oil level, the floating ball liquid level control valve leads oil out of the sealed oil storage tank and the hydrogen side oil return tank for supplement until the oil level of the vacuum oil tank reaches the preset oil level, and the vacuum oil tank is connected with the vacuumizing system.
Adopt the sealed oil feeding unit that this application embodiment provided, through in the vacuum pumping system with detachable mode connection oil drum, can keep the vacuum degree of vacuum oil tank not reduce when vacuum pumping system oil extraction.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A vacuum pumping system comprises a rotary vane vacuum pump and an air oil separator, and is characterized by also comprising an oil drum; wherein:
the gas-oil separator is arranged at the inlet of the rotary vane vacuum pump;
an oil accumulation chamber is arranged in the gas-oil separator and is used for accommodating oil separated from gas sucked into the inlet by the gas-oil separator from the rotary vane vacuum pump;
the oil drum is detachably connected with the oil accumulation chamber; an oil discharge door capable of being opened and closed is arranged at the joint of the oil drum and the oil accumulation chamber;
the oil drum is in when the fuel outlet door is in the open mode hold from the interior outflow of ponding.
2. The evacuation system of claim 1, wherein the oil drum is provided with a viewing window.
3. The evacuated system according to claim 2, wherein the viewing window comprises a transparent upper cover.
4. The vacuum pumping system of claim 3, wherein the transparent top cover is made of organic glass.
5. The vacuum pumping system of claim 3, wherein the transparent upper cover is fastened on the oil drum by a bolt, and a bolt hole of the bolt is a countersunk hole.
6. The evacuation system of claim 1, wherein the volume of the oil drum is 2-7 times the volume of the oil accumulation chamber.
7. The vacuum pumping system of claim 1, wherein the oil drum is connected to the drain door by a tube having joints at both ends.
8. The evacuation system of claim 1, wherein the gas-oil separator is coupled to a vacuum reservoir, the rotary vane vacuum pump drawing gas from the vacuum reservoir to the inlet.
9. The evacuation system of claim 1, further comprising an exhaust filter disposed at an outlet of the rotary vane vacuum pump, the exhaust filter for filtering oil from the gas exhausted from the rotary vane vacuum pump.
10. A seal oil supplying apparatus including the vacuum pumping system according to any one of claims 1 to 9, comprising: the vacuum oil tank is characterized in that the vacuum oil tank is connected with the vacuumizing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120442856.XU CN216278489U (en) | 2021-03-01 | 2021-03-01 | Vacuumizing system and sealing oil supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120442856.XU CN216278489U (en) | 2021-03-01 | 2021-03-01 | Vacuumizing system and sealing oil supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216278489U true CN216278489U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120442856.XU Active CN216278489U (en) | 2021-03-01 | 2021-03-01 | Vacuumizing system and sealing oil supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216278489U (en) |
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2021
- 2021-03-01 CN CN202120442856.XU patent/CN216278489U/en active Active
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