CN222950647U - An online oil discharge device for vacuum unit - Google Patents
An online oil discharge device for vacuum unit Download PDFInfo
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- CN222950647U CN222950647U CN202421748653.3U CN202421748653U CN222950647U CN 222950647 U CN222950647 U CN 222950647U CN 202421748653 U CN202421748653 U CN 202421748653U CN 222950647 U CN222950647 U CN 222950647U
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Abstract
The utility model relates to the field of cured product processing equipment, and discloses an online oil discharging device of a vacuum unit. The utility model can condense the noncondensable gas in the pipeline and then remain in the connecting pipe, and can guide the condensed water into the oil drain tank through the communicating pipe, thereby avoiding the conditions of pipeline blockage and vacuum pump oil pollution, and further ensuring the vacuumizing capability of the vacuum unit main body.
Description
Technical Field
The utility model relates to the field of cured product processing equipment, in particular to an online oil discharging device of a vacuum unit.
Background
The raw materials are pressurized by a feed pump in a tank area and then are fed into a first-stage film feed preheater, the materials are heated instantly by the film feed preheater, light components are condensed and cooled by a condenser and then enter a film light phase collecting tank, and then are extracted out of the tank area by a film light phase extracting pump.
The whole set of vacuum unit mainly comprises a first-stage Roots pump, a second-stage Roots pump, a third-stage Roots pump and a liquid ring pump, wherein the inlet of the first-stage Roots pump is connected with the film feeding preheater, the outlet of the first-stage Roots pump is connected with the inlet of the third-stage Roots pump through a pipeline, the outlet of the third-stage Roots pump is connected with the inlet of the liquid ring pump, the vacuum unit mainly provides vacuum for the film feeding preheater, in the vacuumizing process, partial noncondensable gas enters the vacuum unit, and after condensation, the noncondensable gas stays in the unit pipeline to cause pipeline blockage, and even enters the liquid ring pump to cause vacuum pump oil pollution, so that the vacuumizing capacity of the vacuum unit is reduced, and the vacuum degree of the film feeding preheater is reduced.
Disclosure of utility model
Based on the above problems, the present utility model aims to provide an on-line oil discharging device for a vacuum unit, so as to solve the problems existing in the prior art.
The utility model adopts the following technical scheme:
the utility model provides an online oil discharge device of a vacuum unit, which comprises a vacuum unit main body and further comprises:
The connecting pipe is detachably connected to a pipeline of the vacuum unit main body, a cooling pipe is arranged in the connecting pipe, and two ends of the cooling pipe respectively penetrate through the outer side of the connecting pipe in a sealing mode and are connected with a cooling water circulation system;
The oil drain tank, the oil drain tank set up in the below of connecting pipe, top one side of oil drain tank pass through the communicating pipe with the bottom of connecting pipe links to each other, and the top opposite side is equipped with the blow-down pipe, the communicating pipe the last valve one that all is equipped with of blow-down pipe.
Further, an oil drain pipe is arranged at the bottom of one side of the oil drain tank, and a valve II is arranged on the oil drain pipe.
Still further, the oil drain tank bottom is equipped with a plurality of landing legs.
Still further, the cooling tube is provided in a U-shaped configuration.
Still further, be provided with vacuum sensor on the pipeline, be provided with the valve III on the communication pipe, vacuum sensor the valve III respectively with the controller electric connection.
Compared with the prior art, the utility model has the beneficial technical effects that:
Through connecting pipe, cooling tube, cooling water circulation system, oil drain tank, communicating pipe, blow-down pipe and valve one that set up, can keep in the connecting pipe after condensing noncondensable gas in the pipeline to can pass through the communicating pipe with the comdenstion water and introduce in the oil drain tank, avoid appearing the condition that the pipeline is stopped up and vacuum pump oil pollutes, thereby guaranteed the evacuation ability of vacuum unit main part.
Drawings
The utility model is further described with reference to the following description of the drawings.
Fig. 1 is a schematic structural diagram of an on-line oil discharging device of a vacuum unit according to a first embodiment of the present utility model;
fig. 2 is a schematic structural diagram of an on-line oil discharging device of a vacuum unit according to a second embodiment of the present utility model.
The reference numerals indicate that 1, a vacuum unit main body, 101, a first-stage Roots pump, 102, a second-stage Roots pump, 103, a pipeline, 2, a connecting pipe, 3, a cooling pipe, 4, an oil discharge tank, 5, a communicating pipe, 6, a blow-down pipe, 7, a valve I, 8, an oil discharge pipe, 9, a valve II, 10, a supporting leg, 11, a vacuum sensor, 12 and a valve III.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments.
Example 1
As shown in fig. 1, the embodiment discloses an online oil discharging device of a vacuum unit, which comprises a vacuum unit main body 1, wherein a connecting pipe 2 is detachably connected to a pipeline 103 of the vacuum unit main body 1, a cooling pipe 3 is arranged in the connecting pipe 2, two ends of the cooling pipe 3 respectively penetrate through the outer side of the connecting pipe 2 in a sealing manner and are connected with a cooling water circulation system, an oil discharging tank 4 is arranged below the connecting pipe 2, one side of the top of the oil discharging tank 4 is fixedly communicated with the bottom of the connecting pipe 2 through a communication pipe 5, the other side of the top is fixedly communicated with a blow-down pipe 6, and valves I7 are fixedly arranged on the communication pipe 5 and the blow-down pipe 6.
In the embodiment, the connecting pipe 2 is detachably connected with the pipeline 103 in a flange connection mode, the pipe diameter of the connecting pipe 2 is larger than that of the pipeline 103, the bottom surface of the connecting pipe 2 is located below the bottom surface of the pipeline 103, the cooling pipe 3 is of a U-shaped structure, two side walls of the cooling pipe 3 are fixedly connected with the connecting pipe 2, cooling water can be led into the cooling pipe 3 from one end of the cooling pipe 3 through a cooling water circulation system, water in the cooling pipe 3 can flow back into the cooling water circulation system, and the cooling water can be led into the cooling pipe 3 again after cooling treatment of the cooling water circulation system.
According to a further optimization scheme, an oil drain pipe 8 is fixedly communicated with the bottom of one side of the oil drain tank 4, and a valve II 9 is fixedly installed on the oil drain pipe 8. A plurality of supporting legs 10 are fixed at the bottom of the oil drain tank 4.
The technical scheme comprises the steps of connecting a connecting pipe 2 with a pipeline 103 of a vacuum unit, connecting two ends of a cooling pipe 3 with a cooling water circulation system respectively, opening a valve I7 on a blow-down pipe 6 and a valve II 9 on an oil discharge pipe 8, starting the cooling water circulation system to introduce cooling water into the cooling pipe 3, starting a vacuum unit main body 1 to vacuumize, closing the valve I7 on the connecting pipe 5 when the interiors of the pipeline 103, the connecting pipe 2, the communicating pipe 5 and an oil discharge tank 4 are all in a vacuum environment, then normally operating the vacuum unit main body 1, enabling part of noncondensable gas to enter the pipeline 103 in the process, enabling the part of noncondensable gas to form condensate under the cooling action of the cooling pipe 3, and storing the condensate in the bottom of the connecting pipe 2, and after the condensate stored in the connecting pipe 2 reaches a certain amount, reducing the vacuum degree in the connecting pipe 2 and the pipeline 103, opening the valve I7 on the connecting pipe 5, enabling the condensate in the bottom of the connecting pipe 2 and the interior of the oil discharge tank 4 to form the same pressure, enabling the condensate in the bottom of the connecting pipe 2 to flow into the oil tank to be in the oil discharge tank 4 under the action of gravity, and enabling the condensate in the bottom of the connecting pipe 2 to continue to normally closing the pipeline 7.
It should be noted that, since the bottom surface of the connection pipe 2 is located below the bottom surface of the pipe 103, condensate remains in the bottom region of the connection pipe 2, and the liquid surface thereof is lower than the inner bottom surface of the pipe 103, and condensate does not enter the liquid ring pump through the pipe 103 in the whole process. The cooling water circulation system is in the prior art, and the working principle and the using method are known.
It should be noted that, the condensate in the drain tank 4 needs to be drained periodically, when draining, the valve one 7 on the communicating pipe 5 is closed, the valve one 7 on the drain pipe 6 is opened to make the interior of the drain tank 4 communicate with the outside, then the valve two 9 on the drain pipe 8 is opened to drain the condensate in the drain tank 4, after the condensate draining is completed, the valve one 7 on the drain pipe 6 and the valve two 9 on the drain pipe 8 are closed, the valve one 7 on the communicating pipe 5 is opened, the vacuum unit main body 1 is started to perform vacuum pumping, when the interior of the pipeline 103, the connecting pipe 2, the communicating pipe 5 and the drain tank 4 is in vacuum environment, the valve one 7 on the communicating pipe 5 is closed, and then the vacuum unit main body 1 operates normally.
Through the arrangement of the structure, the non-condensable gas in the pipeline 103 can be condensed and then remain in the connecting pipe 2, and the condensed water can be led into the oil discharge tank 4 through the communication pipe 5, so that the conditions of blockage of the pipeline 103 and pollution of the vacuum pump oil are avoided, and the vacuumizing capacity of the vacuum unit main body 1 is ensured.
Example two
As shown in fig. 2, in the first embodiment, the second embodiment is different from the first embodiment in that in the second embodiment, the vacuum sensor 11 is fixedly installed on the pipeline 103, the valve three 12 is fixedly installed on the communication pipe 5, and the vacuum sensor 11 and the valve three 12 are respectively electrically connected with the controller.
In the second embodiment, the vacuum sensor 11 is located on one side of the connecting pipe 2 close to the second-stage Roots pump 102, the third valve 12 is a pneumatic valve, the vacuum sensor 11 is used for detecting the vacuum degree in the pipeline 103 and the connecting pipe 2 and sending a signal to the controller, and the controller can receive the signal of the vacuum sensor 11 and control the third valve 12 to be opened or closed.
The working process of the second embodiment comprises the steps of firstly connecting a connecting pipe 2 with a pipeline 103 of a vacuum unit, connecting two ends of a cooling pipe 3 with a cooling water circulation system respectively, closing a valve I7 on a blow-down pipe 6 and a valve II 9 on an oil discharge pipe 8, starting the cooling water circulation system to guide cooling water into the cooling pipe 3, starting a vacuum unit main body 1 to vacuumize, closing a valve III 12 on the connecting pipe 5 when the interiors of the pipeline 103, the connecting pipe 2, the communicating pipe 5 and an oil discharge tank 4 are all in vacuum environments, then normally operating the vacuum unit main body 1, enabling partial noncondensable gas to enter the pipeline 103 in the process, forming condensate under the cooling effect of the cooling pipe 3, and storing the condensate at the bottom of the connecting pipe 2, detecting the vacuum degree of the connecting pipe 2 and the pipeline 103 by a vacuum sensor 11 after the condensate reserved in the connecting pipe 2 reaches a certain amount, sending a signal to a controller, automatically controlling the valve III 12 on the connecting pipe 5 after the signal of the vacuum sensor 11 is received, and controlling the gravity of the valve III 12 to flow into the connecting pipe 2 and the oil discharge tank 4 after the condensate is normally opened, and the vacuum sensor 2 is controlled to be in the vacuum tank 2 and the vacuum tank is controlled to be in the bottom after the condensate is normally opened.
It should be noted that, when condensate in the oil drain tank 4 needs to be drained periodically, the controller controls the valve three 12 to be closed, the valve one 7 on the drain pipe 6 is opened to enable the interior of the oil drain tank 4 to be communicated with the outside, then the valve two 9 on the drain pipe 8 is opened to drain condensate in the oil drain tank 4, after condensate draining is completed, the valve one 7 on the drain pipe 6 and the valve two 9 on the drain pipe 8 are closed, the valve three 12 on the communication pipe 5 is opened through the controller, the vacuum unit main body 1 is started to perform vacuumizing, and when the interiors of the pipeline 103, the connecting pipe 2, the communication pipe 5 and the oil drain tank 4 are all in a vacuum environment, the valve three 12 on the communication pipe 5 is closed through the controller, and then the vacuum unit main body 1 operates normally.
In the second embodiment, by the arrangement of the above structure, the condensate remaining in the connecting pipe 2 can be automatically discharged into the drain tank 4 as compared with the first embodiment.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421748653.3U CN222950647U (en) | 2024-07-23 | 2024-07-23 | An online oil discharge device for vacuum unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421748653.3U CN222950647U (en) | 2024-07-23 | 2024-07-23 | An online oil discharge device for vacuum unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222950647U true CN222950647U (en) | 2025-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421748653.3U Active CN222950647U (en) | 2024-07-23 | 2024-07-23 | An online oil discharge device for vacuum unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222950647U (en) |
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2024
- 2024-07-23 CN CN202421748653.3U patent/CN222950647U/en active Active
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