CN217327724U - Vacuum system with centrifugal vacuum pumps connected in series - Google Patents
Vacuum system with centrifugal vacuum pumps connected in series Download PDFInfo
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- CN217327724U CN217327724U CN202221337171.XU CN202221337171U CN217327724U CN 217327724 U CN217327724 U CN 217327724U CN 202221337171 U CN202221337171 U CN 202221337171U CN 217327724 U CN217327724 U CN 217327724U
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- vacuum pump
- multistage centrifugal
- pipeline
- centrifugal vacuum
- silencer
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Abstract
The utility model relates to a vacuum system is established ties to centrifugal vacuum pump, a vacuum system is constituteed to first multistage centrifugal vacuum pump, second multistage centrifugal vacuum pump, cooler and silencer, be provided with the silencer on the admission line of first multistage centrifugal vacuum pump, the pipeline of giving vent to anger of second multistage centrifugal vacuum pump, the pipeline of giving vent to anger, be provided with electric butterfly valve on the admission line of first multistage centrifugal vacuum pump, the admission line of second multistage centrifugal vacuum pump, the pipeline of giving vent to anger of first multistage centrifugal vacuum pump, pressure transmitter sets up respectively on the admission line of first multistage centrifugal vacuum pump, first pipeline and second pipeline, the motor provides power for multistage centrifugal pump, pressure transmitter, electric butterfly valve and motor are connected with the variable frequency control cabinet electricity. The utility model discloses utilize two multistage centrifugal vacuum pumps to establish ties and get up work, divide into two sections with vacuum, utilize two multistage centrifugal vacuum pumps to do work respectively, the relay realizes the requirement of entire system to the high vacuum.
Description
Technical Field
The utility model relates to a vacuum adsorption technology field, in particular to centrifugal vacuum pump series connection vacuum system.
Background
In a vacuum adsorption system, the requirement on the vacuum degree is higher and higher, and a single multi-stage centrifugal vacuum pump can provide the vacuum degree of less than-50 KPa; for the vacuum market of-50 to-75 KPa, a single multistage centrifugal vacuum pump cannot meet the requirement, and a roots vacuum pump or a two-machine series roots vacuum pump can meet the market requirement.
The vacuum pump systems commonly used in the market at present mainly comprise a roots vacuum pump, a double-machine series roots vacuum pump and a single multi-stage centrifugal vacuum pump. Although the vacuum degree of the Roots vacuum pump and the double-machine series Roots vacuum pump can meet the requirement, the working principle of the Roots vacuum pump is a positive displacement fan, so that under the working condition of variable flow or under the condition of variable frequency control, the flow regulator is not wide enough, the energy-saving effect is poor, the noise generated by the Roots vacuum pump belongs to low-frequency noise, the noise decibel is high, and the Roots vacuum pump is easy to cause human body diseases in the working environment for a long time; the single multi-stage centrifugal vacuum pump can meet the vacuum degree of less than or equal to-50 KPa and cannot meet the vacuum market of-50 to-75 KPa.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem provided in the above-mentioned background art, the utility model provides a centrifugal vacuum pump series connection vacuum system.
The utility model provides a pair of centrifugal vacuum pump series connection vacuum system adopts following technical scheme:
the utility model provides a centrifugal vacuum pump series connection vacuum system, includes multistage centrifugal vacuum pump, silencer, electric butterfly valve, cooler, pressure transmitter, variable frequency control cabinet and motor, multistage centrifugal vacuum pump includes first multistage centrifugal vacuum pump and second multistage centrifugal vacuum pump, the cooler sets up between first multistage centrifugal vacuum pump and second multistage centrifugal vacuum pump, the cooler is connected with first multistage centrifugal vacuum pump through first pipeline, the cooler passes through the second pipeline and is connected with second multistage centrifugal vacuum pump, the silencer includes first silencer, second silencer and third silencer, first silencer sets up on the admission line of first multistage centrifugal vacuum pump, the second silencer sets up on the pipeline of giving vent to anger of second multistage centrifugal vacuum pump, the third silencer sets up on first pipeline, electric butterfly valve includes first electric butterfly valve, electric butterfly valve, Second electric butterfly valve and third electric butterfly valve, first electric butterfly valve sets up on the pipeline between first silencer and the multistage centrifugal vacuum pump of second, second electric butterfly valve sets up on the admission line of the multistage centrifugal vacuum pump of second, third electric butterfly valve sets up on the pipeline of third silencer and first 1 pipe connection, pressure transmitter sets up respectively on admission line, first pipeline and the second pipeline of first multistage centrifugal vacuum pump, the motor is including the first motor that is used for driving first multistage centrifugal vacuum pump and the second motor that is used for driving second multistage centrifugal vacuum pump, pressure transmitter, electric butterfly valve and motor all are connected with the variable frequency control cabinet electricity.
By adopting the technical scheme, the two multi-stage centrifugal vacuum pumps are connected in series to work, the vacuum degree is divided into two sections, the two multi-stage centrifugal vacuum pumps are used for respectively applying work, the requirement of the whole system on the high vacuum degree is met in a relay mode, the cooler arranged in the system effectively reduces the gas temperature at the outlet of the first multi-stage centrifugal vacuum pump, the working efficiency of the second multi-stage centrifugal vacuum pump is improved, the pressure transmitter, the electric butterfly valve and the variable frequency control cabinet are used for realizing remote automatic control, and the flow range under a certain vacuum degree condition can be effectively adjusted.
Preferably, a corrugated compensator is arranged on the air inlet pipeline of the first multistage centrifugal vacuum pump, the air inlet end of the first pipeline, the air outlet end of the second pipeline and the air outlet pipeline of the second multistage centrifugal vacuum pump.
By adopting the technical scheme, noise and vibration reduction can be carried out on the pipeline.
Preferably, a check valve is arranged on the second pipeline.
Preferably, the third muffler and the first pipe are connected by a tee joint.
Preferably, a pressure gauge is arranged on the first pipeline.
Through adopting above-mentioned technical scheme, can show the pressure value in the pipeline in real time.
Preferably, the vacuum system further comprises a base, and the first multistage centrifugal vacuum pump and the second multistage centrifugal vacuum pump are arranged on the base.
To sum up, the utility model discloses following useful technological effect has:
the utility model utilizes two multi-stage centrifugal vacuum pumps to work in series, divides the vacuum degree into two sections, utilizes the two multi-stage centrifugal vacuum pumps to do work respectively, and realizes the requirement of the whole system on high vacuum degree in relay; the cooler equipped in the system effectively reduces the gas temperature at the outlet of the first multistage centrifugal vacuum pump, and improves the working efficiency of the second multistage centrifugal vacuum pump; by utilizing the pressure transmitter, the electric butterfly valve and the variable frequency control cabinet, remote automatic control can be realized, and noise damage is reduced; the flow range under a certain vacuum degree can be effectively adjusted, and the energy-saving effect is obvious.
Drawings
Fig. 1 is a schematic structural view of a centrifugal vacuum pump series vacuum system according to the present invention;
FIG. 2 is a schematic diagram of a side view of a first multi-stage centrifugal vacuum pump in a vacuum system with centrifugal vacuum pumps connected in series according to the present invention;
FIG. 3 is a schematic diagram of a side view of a second multi-stage centrifugal vacuum pump in a vacuum system with centrifugal vacuum pumps connected in series according to the present invention;
fig. 4 is a schematic top view of a vacuum system with centrifugal vacuum pumps connected in series according to the present invention;
fig. 5 is a schematic diagram of a local enlarged structure of a second electric butterfly valve in a vacuum system with a centrifugal vacuum pump connected in series.
Wherein, 1, a first multistage centrifugal vacuum pump; 2. a second multistage centrifugal vacuum pump; 3. a cooler; 4. a first pipe; 5. a second conduit; 6. a first muffler; 7. a second muffler; 8. a third silencer; 9. a first electric butterfly valve; 10. a second electric butterfly valve; 11. a third electric butterfly valve; 12. a pressure transmitter; 13. a first motor; 14. a second motor; 15. a variable frequency control cabinet; 16. a ripple compensator; 17. a check valve; 18. a pressure gauge; 19. a base.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the utility model discloses centrifugal vacuum pump series connection vacuum system.
Referring to fig. 1 to 5, the multistage centrifugal vacuum pump comprises a first multistage centrifugal vacuum pump 1 and a second multistage centrifugal vacuum pump 2, a cooler 3, a pressure transmitter 12, a variable frequency control cabinet 15 and a motor, the cooler 3 is arranged between the first multistage centrifugal vacuum pump 1 and the second multistage centrifugal vacuum pump 2, the cooler 3 is connected with the first multistage centrifugal vacuum pump 1 through a first pipeline 4, the cooler 3 is connected with the second multistage centrifugal vacuum pump 2 through a second pipeline 5, the muffler comprises a first muffler 6, a second muffler 7 and a third muffler 8, the first muffler 6 is arranged on an air inlet pipeline of the first multistage centrifugal vacuum pump 1, the second muffler 7 is arranged on an air outlet pipeline of the second multistage centrifugal vacuum pump 2, the third muffler 8 is arranged on the first pipeline 4, electric butterfly valve includes first electric butterfly valve 9, second electric butterfly valve 10 and third electric butterfly valve 11, first electric butterfly valve 9 sets up on the pipeline between first silencer 6 and first multistage centrifugal vacuum pump 1, second electric butterfly valve 10 sets up on the admission line of second multistage centrifugal vacuum pump 2, third electric butterfly valve 11 sets up on the pipeline that third silencer 8 is connected with first pipeline 4, pressure transmitter 12 sets up respectively on the admission line of first multistage centrifugal vacuum pump 1, first pipeline 4 and second pipeline 5, the motor is including first motor 13 that is used for driving first multistage centrifugal vacuum pump 1 and the second motor 14 that is used for driving second multistage centrifugal vacuum pump 2, pressure transmitter 12, electric butterfly valve and motor all are connected with frequency conversion switch board 15 electricity.
And corrugated compensators 16 are arranged on the air inlet pipeline of the first multistage centrifugal vacuum pump 1, the air inlet end of the first pipeline 4, the air outlet end of the second pipeline 5 and the air outlet pipeline of the second multistage centrifugal vacuum pump 2. A check valve 17 is provided on the second pipe 5. The third silencer 8 is connected with the first pipeline 4 through a tee joint. A pressure gauge 18 is arranged on the first pipeline 4. The vacuum system further comprises a base 19, and the first multistage centrifugal vacuum pump 1 and the second multistage centrifugal vacuum pump 2 are both arranged on the base 19.
The working principle is as follows: the first multistage centrifugal vacuum pump 1 and the second multistage centrifugal vacuum pump 2 provide a flow rate and a pressure of a high vacuum degree. The first multistage centrifugal vacuum pump 1, the second multistage centrifugal vacuum pump 2, the cooler 3, the first silencer 6, the second silencer 7 and the third silencer 8 are connected through pipelines to form a vacuum system, the cooler 3 is arranged between the first multistage centrifugal vacuum pump 1 and the second multistage centrifugal vacuum pump 2, the gas temperature at the outlet of the first multistage centrifugal vacuum pump 1 is reduced, the boosting capacity of the second multistage centrifugal vacuum pump 2 is improved, and energy is saved. The silencer is respectively connected with the air inlet pipeline of the first multistage centrifugal vacuum pump 1, the air outlet pipeline of the second multistage centrifugal vacuum pump 2 and the first pipeline 4 through flange bolts, so that the noise of a vacuum system is reduced, and the environmental noise pollution is reduced. The electric butterfly valves are respectively arranged on a pipeline between the first silencer 6 and the first multistage centrifugal vacuum pump 1, an air inlet pipeline of the second multistage centrifugal vacuum pump 2 and a pipeline connecting the third silencer 8 and the first pipeline 4. The electric butterfly valve is electrically connected with the variable frequency control cabinet, and the variable frequency control cabinet controls the opening and closing of the butterfly valve. Pressure transmitter 12 sets up respectively on the admission line of first multistage centrifugal vacuum pump 1, first pipeline 4 and second pipeline 5, and the pressure data of automatic acquisition fan air intake pipeline to real-time transmission is to variable frequency control cabinet, makes things convenient for operating personnel to adjust vacuum data. The variable frequency control cabinet is electrically connected with the first motor and the second motor, an operator adjusts the vacuum degree data according to the pipeline pressure data collected by the pressure transmitter, and the variable frequency control cabinet automatically starts and stops the motors according to the pipeline vacuum degree data, adjusts the frequency and adjusts the vacuum degree of the whole system.
Above is the preferred embodiment of the utility model, not limit according to this the utility model discloses a protection scope, the event: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. The utility model provides a centrifugal vacuum pump series connection vacuum system which characterized in that: comprises a multistage centrifugal vacuum pump, a silencer, an electric butterfly valve, a cooler (3), a pressure transmitter (12), a variable frequency control cabinet (15) and a motor, wherein the multistage centrifugal vacuum pump comprises a first multistage centrifugal vacuum pump (1) and a second multistage centrifugal vacuum pump (2), the cooler (3) is arranged between the first multistage centrifugal vacuum pump (1) and the second multistage centrifugal vacuum pump (2), the cooler (3) is connected with the first multistage centrifugal vacuum pump (1) through a first pipeline (4), the cooler (3) is connected with the second multistage centrifugal vacuum pump (2) through a second pipeline (5), the silencer comprises a first silencer (6), a second silencer (7) and a third silencer (8), the first silencer (6) is arranged on an air inlet pipeline of the first multistage centrifugal vacuum pump (1), the second silencer (7) is arranged on an air outlet pipeline of the second multistage centrifugal vacuum pump (2), the third silencer (8) is arranged on the first pipeline (4), the electric butterfly valve comprises a first electric butterfly valve (9), a second electric butterfly valve (10) and a third electric butterfly valve (11), the first electric butterfly valve (9) is arranged on the pipeline between the first silencer (6) and the first multistage centrifugal vacuum pump (1), the second electric butterfly valve (10) is arranged on the air inlet pipeline of the second multistage centrifugal vacuum pump (2), the third electric butterfly valve (11) is arranged on the pipeline connecting the third silencer (8) and the first pipeline (4), the pressure transmitters (12) are respectively arranged on the air inlet pipeline, the first pipeline (4) and the second pipeline (5) of the first multistage centrifugal vacuum pump (1), and the motors comprise a first motor (13) for driving the first multistage centrifugal vacuum pump (1) and a second motor (14) for driving the second multistage centrifugal vacuum pump (2), and the pressure transmitter (12), the electric butterfly valve and the motor are electrically connected with the variable frequency control cabinet (15).
2. A centrifugal vacuum pump in-line vacuum system as claimed in claim 1, wherein: corrugated compensators (16) are arranged on the air inlet pipeline of the first multistage centrifugal vacuum pump (1), the air inlet end of the first pipeline (4), the air outlet end of the second pipeline (5) and the air outlet pipeline of the second multistage centrifugal vacuum pump (2).
3. A centrifugal vacuum pump in-line vacuum system as claimed in claim 2, wherein: and a check valve (17) is arranged on the second pipeline (5).
4. A centrifugal vacuum pump in-line vacuum system as claimed in claim 1, wherein: the third silencer (8) is connected with the first pipeline (4) through a tee joint.
5. A centrifugal vacuum pump in-line vacuum system as claimed in claim 2, wherein: and a pressure gauge (18) is arranged on the first pipeline (4).
6. A centrifugal vacuum pump in-line vacuum system as claimed in claim 1, wherein: the vacuum system further comprises a base (19), and the first multistage centrifugal vacuum pump (1) and the second multistage centrifugal vacuum pump (2) are both arranged on the base (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221337171.XU CN217327724U (en) | 2022-05-31 | 2022-05-31 | Vacuum system with centrifugal vacuum pumps connected in series |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221337171.XU CN217327724U (en) | 2022-05-31 | 2022-05-31 | Vacuum system with centrifugal vacuum pumps connected in series |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217327724U true CN217327724U (en) | 2022-08-30 |
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ID=82986725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221337171.XU Active CN217327724U (en) | 2022-05-31 | 2022-05-31 | Vacuum system with centrifugal vacuum pumps connected in series |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217327724U (en) |
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2022
- 2022-05-31 CN CN202221337171.XU patent/CN217327724U/en active Active
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