CN215109491U - Roots vacuum water ring unit - Google Patents
Roots vacuum water ring unit Download PDFInfo
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- CN215109491U CN215109491U CN202023351018.6U CN202023351018U CN215109491U CN 215109491 U CN215109491 U CN 215109491U CN 202023351018 U CN202023351018 U CN 202023351018U CN 215109491 U CN215109491 U CN 215109491U
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- roots vacuum
- vacuum pump
- water ring
- roots
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Abstract
The utility model discloses a Roots vacuum water ring unit, which comprises an air inlet pipeline and an air outlet pipeline, wherein a first-stage Roots vacuum pump, a second-stage Roots vacuum pump, a liquid ring vacuum pump and an air-water separator are arranged between the air inlet pipeline and the air outlet pipeline, and the first-stage Roots vacuum pump, the second-stage Roots vacuum pump, the liquid ring vacuum pump and the air-water separator are connected through pipelines; the gas inlet pipeline is connected with a gas inlet of the Roots vacuum water ring unit, and a pneumatic regulating valve is arranged on the gas inlet pipeline. The Roots vacuum water ring unit can prevent the vacuum oil emulsification of the Roots vacuum pump during vacuum pumping, and avoid the phenomenon that the equipment cannot be operated as usual; the failure rate of the Roots vacuum water ring unit is reduced, and the workload of maintenance personnel is reduced; the vacuum pumping efficiency is effectively improved.
Description
Technical Field
The utility model relates to a vacuum pump technical field, concretely relates to roots vacuum water ring unit.
Background
Use vacuum unit mainly to have a one-level lobe pump, a second grade lobe pump to constitute at present, carry out the evacuation to reation kettle, the saturated steam that in-process reation kettle of evacuation was come is more, through one-level lobe pump after, at the ponding of one-level lobe pump below formation, gets into second grade lobe pump to cause the emulsification of vacuum oil. The existing vacuum unit structure has the advantages that water vapor easily enters the oil cavity in the roots pump to enable the roots pump to run for a week without complete emulsification of vacuum oil, so that the sealing element in the pump is damaged, the bearing is dry-ground and blocked, the failure rate of the roots liquid ring vacuum unit is high, the vacuumizing efficiency is greatly influenced, and the production is influenced. In the process of vacuum pumping, materials in the reaction kettle are possibly pumped into a unit pipeline and deposited into blocks, so that the vacuum pump is blocked.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a roots vacuum water ring unit to effectively solve prior art's weak point.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a Roots vacuum water ring unit comprises an air inlet pipeline and an air outlet pipeline, wherein a primary Roots vacuum pump, a secondary Roots vacuum pump, a liquid ring vacuum pump and an air-water separator are arranged between the air inlet pipeline and the air outlet pipeline, and the primary Roots vacuum pump, the secondary Roots vacuum pump, the liquid ring vacuum pump and the air-water separator are connected through pipelines; the gas inlet pipeline is connected with a gas inlet of the Roots vacuum water ring unit, and a pneumatic regulating valve is arranged on the gas inlet pipeline.
Compared with the prior art, roots vacuum water ring unit improved the efficiency of evacuation, roots vacuum pump vacuum oil emulsification when can preventing the evacuation avoids appearing the phenomenon that equipment can't move.
Furthermore, a vacuum breaking valve is arranged at an oil filling port of the secondary Roots vacuum pump. When the roots vacuum pump stops pumping, system water vapor is prevented from entering an oil chamber of the roots vacuum pump.
Furthermore, the device also comprises a liquid accumulation tank which is connected with a liquid outlet arranged below the first-stage Roots vacuum pump through a liquid discharge pipeline. Prevent the accumulated water below the first-stage roots vacuum pump from entering the second-stage roots vacuum pump.
Further, the hydrops jar includes the support and a jar body, jar body top is equipped with the water inlet, and jar body bottom is equipped with the outlet, and jar side wall is equipped with the tonifying qi mouth.
Furthermore, the liquid accumulation tank is also provided with a liquid level meter, and the liquid level meter is in electric signal connection with the unit. The liquid level meter interlocks the liquid level to realize automatic drainage.
Further, a heat exchanger connected through a pipeline is arranged between the gas-water separator and the liquid ring vacuum pump.
Furthermore, shaft seals are arranged on the first-stage roots vacuum pump and the second-stage roots vacuum pump, and the shaft seals are three-lip shaft seals. The sealing effect is better.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a liquid accumulation tank according to an embodiment of the present invention;
wherein the reference numerals are: 1. an air intake duct; 2. an air outlet pipe; 3. a first-stage Roots vacuum pump; 4. a second-stage Roots vacuum pump; 5. a liquid ring vacuum pump; 6. a gas-water separator; 7. a heat exchanger; 8. a liquid accumulation tank; 11. a pneumatic regulating valve; 31. a liquid discharge port; 41. breaking a vacuum electromagnetic valve; 81. a support; 82. a tank body; 821. a water inlet; 822. a water outlet; 823. air supplement port.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and embodiments.
Referring to fig. 1, a roots vacuum water ring unit comprises an air inlet pipeline 1, an air outlet pipeline 2, a primary roots vacuum pump 3, a secondary roots vacuum pump 4, a liquid ring vacuum pump 5, a heat exchanger 7, a gas-water separator 6 and a liquid accumulation tank 8, wherein the primary roots vacuum pump 3, the secondary roots vacuum pump 4, the liquid ring vacuum pump 5 and the gas-water separator 6 are sequentially connected through pipelines between the air inlet pipeline 1 and the air outlet pipeline 2, and the heat exchanger 7 is arranged between the liquid ring vacuum pump 5 and the gas-water separator 6.
And a pneumatic regulating valve 11 is arranged on the gas inlet pipeline 1 and used for controlling the gas amount in the pipeline.
A liquid discharge port 31 is arranged below the first-stage roots vacuum pump 3, and the liquid discharge port 31 is connected with the liquid accumulation tank 8 through a liquid discharge pipeline and used for discharging accumulated water of the first-stage roots vacuum pump 3.
And a vacuum breaking electromagnetic valve 41 is arranged at the oil filling port of the secondary roots vacuum pump 4, so that the vacuum pumping state can be broken when the pump is stopped.
The liquid accumulation tank 8 comprises a support 81 and a tank body 82, the tank body 82 is fixed on the support 81, a water inlet 821 is arranged at the top of the tank body 82, a water outlet 822 is arranged at the bottom of the tank body 82, and an air supplementing opening 823 is arranged on the side wall of the tank body 82. The liquid accumulation tank 8 is provided with a liquid level meter, the interlocking control liquid level is increased, and automatic drainage is realized.
The first-stage Roots vacuum pump 3 and the second-stage Roots vacuum pump 4 are both provided with three-lip shaft seals,
in the actual working process, the air outlet of the vacuumized equipment is connected with the air inlet of the Roots vacuum water ring unit through the air inlet pipeline 1, and the Roots vacuum unit starts to vacuumize the vacuumized equipment. The opening degree of the valve is controlled according to the pressure reduction speed of the pumped equipment through the pneumatic regulating valve 11, so that the air quantity of the air inlet pipeline 1 is controlled, and the phenomenon that the material pumped by the equipment is pumped into the pipeline due to overlarge or unstable air quantity is prevented. In the process of vacuumizing, saturated vapor of vacuumized equipment enters the first-stage roots pump and is discharged into the accumulated liquid tank 8 through the liquid outlet 31, and when the liquid level reaches a certain value, the accumulated liquid tank 8 is controlled to automatically drain water in an interlocking mode. The vacuum breaking electromagnetic valve 41 arranged at the oil filling port of the secondary roots vacuum pump 4 can break the vacuum state when the roots pump stops pumping, and prevents the water vapor of the system from entering the oil chamber of the roots vacuum pump. Compared with the prior art, the Roots vacuum water ring unit can prevent the vacuum oil emulsification of the Roots vacuum pump during vacuum pumping, and avoid the phenomenon that the equipment can not be operated as usual; the failure rate of the Roots vacuum water ring unit is reduced, and the workload of maintenance personnel is reduced; the vacuum pumping efficiency is effectively improved.
The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (7)
1. The utility model provides a roots vacuum water ring unit, includes inlet line and outlet line, its characterized in that:
a first-stage roots vacuum pump, a second-stage roots vacuum pump, a liquid ring vacuum pump and an air-water separator are connected between the gas inlet pipeline and the gas outlet pipeline through pipelines;
the gas inlet pipeline is connected with a gas inlet of the Roots vacuum water ring unit, and a pneumatic regulating valve is arranged on the gas inlet pipeline.
2. The roots vacuum water ring machine set according to claim 1, wherein: and a vacuum breaking valve is arranged at the oil filling port of the secondary Roots vacuum pump.
3. The roots vacuum water ring machine set according to claim 1, wherein: the vacuum pump also comprises a liquid accumulation tank which is connected with a liquid outlet arranged below the first-stage Roots vacuum pump through a liquid discharge pipeline.
4. The roots vacuum water ring machine set according to claim 3, wherein: the hydrops jar includes the support and a jar body, jar body top is equipped with the water inlet, and jar body bottom is equipped with the outlet, and jar side wall is equipped with the tonifying qi mouth.
5. The roots vacuum water ring machine set according to claim 4, wherein: the liquid accumulation tank is also provided with a liquid level meter which is connected with the unit through an electric signal.
6. The roots vacuum water ring machine set according to claim 1, wherein: and a heat exchanger connected through a pipeline is arranged between the gas-water separator and the liquid ring vacuum pump.
7. The roots vacuum water ring machine set according to claim 1, wherein: and shaft seals are arranged on the first-stage Roots vacuum pump and the second-stage Roots vacuum pump and are three-lip shaft seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023351018.6U CN215109491U (en) | 2020-12-31 | 2020-12-31 | Roots vacuum water ring unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023351018.6U CN215109491U (en) | 2020-12-31 | 2020-12-31 | Roots vacuum water ring unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215109491U true CN215109491U (en) | 2021-12-10 |
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ID=79323024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023351018.6U Active CN215109491U (en) | 2020-12-31 | 2020-12-31 | Roots vacuum water ring unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215109491U (en) |
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2020
- 2020-12-31 CN CN202023351018.6U patent/CN215109491U/en active Active
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