CN219752849U - Turbine vacuum pump system for pulp molding - Google Patents
Turbine vacuum pump system for pulp molding Download PDFInfo
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- CN219752849U CN219752849U CN202320697353.6U CN202320697353U CN219752849U CN 219752849 U CN219752849 U CN 219752849U CN 202320697353 U CN202320697353 U CN 202320697353U CN 219752849 U CN219752849 U CN 219752849U
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- vacuum pump
- gas
- turbine vacuum
- pipeline
- water separator
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- 238000000465 moulding Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000000605 extraction Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 abstract description 21
- 230000008569 process Effects 0.000 abstract description 21
- 230000018044 dehydration Effects 0.000 description 7
- 238000006297 dehydration reaction Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Abstract
The utility model provides a turbine vacuum pump system for pulp molding, which belongs to the technical field of vacuum pumps and comprises a paper die machine, a gas-water separator, a buffer tank and a turbine vacuum pump, wherein one side of the paper die machine is fixedly connected with the side surface of the gas-water separator through a first pipeline, the top end of the gas-water separator is fixedly connected with the top end of the buffer tank through a second pipeline, one side of the buffer tank is fixedly connected with the turbine vacuum pump through a third pipeline, the turbine vacuum pump is connected with an air outlet pipeline, and a vacuum degree detector is arranged on the turbine vacuum pump. The turbine vacuum pump system consists of the paper die machine, the turbine vacuum pump, the buffer tank and the steam-water separator, has the characteristics of high operation efficiency, simple system and good process matching property, and is suitable for wide use.
Description
Technical Field
The utility model relates to the technical field of vacuum pumps, in particular to a turbine vacuum pump system for pulp molding.
Background
The vacuum system is one of the most important complete systems in the production process of paper machines and pulp molding machines, and has the main functions of vacuum dehydration, paper mold dryness improvement, finished product transfer, mold cleaning and the like. The performance of the vacuum system directly affects whether the pulp molding machine can normally operate or not, and also affects the yield, the product quality and the energy consumption, and a vacuum pump is the most critical equipment of the vacuum system of the paper molding machine.
The utility model provides a vacuum system of a paper machine, which is disclosed in the prior publication No. CN 201820078550.9. The paper machine vacuum system comprises a paper machine dehydration vacuum box and a vacuum system, wherein the vacuum system is arranged on the paper machine dehydration vacuum box and connected with the paper machine dehydration vacuum box, the vacuum system comprises a vacuum fan, a vacuum pump, a vacuumizing tube and a vacuum switch, the vacuum fan is connected with the paper machine dehydration vacuum box through the vacuumizing tube, the vacuum pump is connected with the paper machine dehydration vacuum box through the vacuumizing tube, the vacuum switch is arranged on the vacuum pump, and the vacuum pump is a water ring vacuum pump. The utility model adopts the structure of the water ring vacuum pump, takes water as a medium, and can circularly utilize the water to carry out vacuum pumping work.
However, the prior art disclosed above has the following disadvantages:
1. the water ring vacuum pump has low operation efficiency, the operation power of the whole machine is 40-55%, and the operation power consumption is high;
2. when the water ring vacuum pump operates, water is needed to be used as a working medium, and a water supply system is needed to be equipped;
3. the water ring vacuum pump is a positive displacement vacuum pump, the extraction quantity is in direct proportion to the rotating speed, the vacuum degree fluctuation in the working process of the paper mould is easy to be caused, the product quality is influenced, the vacuum degree fluctuation is inconsistent with the requirements of a pulp moulding vacuum process system, the extraction quantity is required to be correspondingly changed when the vacuum degree is changed, for example, the extraction quantity is required to be reduced when the vacuum degree is high, the extraction quantity is required to be increased when the vacuum degree is low, the change frequency is extremely high, and the operation efficiency of the vacuum pump is reduced due to poor process matching.
Disclosure of Invention
The utility model aims to provide a turbine vacuum pump system for pulp molding, which solves the technical problems of low operation efficiency, complex system and poor process matching of the existing water ring vacuum pump. The turbine vacuum pump system consists of the paper die machine, the turbine vacuum pump, the buffer tank and the steam-water separator, has the characteristics of high operation efficiency, simple system and good process matching property, and is suitable for wide use.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a paper pulp is turbine vacuum pump system for moulding, includes paper mould machine, gas-water separator, buffer tank and turbine vacuum pump, and one side of paper mould machine and gas-water separator's side pass through first pipeline fixed connection, and gas-water separator's top passes through second pipeline fixed connection with the top of buffer tank, and one side of buffer tank passes through third pipeline fixed connection with the turbine vacuum pump, and the turbine vacuum pump is connected with the pipeline of giving vent to anger, is provided with vacuum degree detector on the turbine vacuum pump.
Further, a paper die machine air extraction opening is formed in one side of the paper die machine, and the paper die machine air extraction opening is fixedly connected with one end of the first pipeline through an external flange.
Further, a gas-water separator gas inlet is formed in the side face of the gas-water separator, the gas-water separator gas inlet is fixedly connected with the other end of the first pipeline through an external flange, a gas-water separator gas outlet is formed in the top end of the gas-water separator, the gas-water separator gas outlet is fixedly connected with one end of the second pipeline through an external flange, and the bottom of the inner side of the gas-water separator is provided with a gas-water separator water outlet.
Further, the top of buffer tank is provided with the buffer tank air inlet, and buffer tank air inlet passes through external flange fixed connection with the other end of second pipeline, and one side of buffer tank is provided with the buffer tank gas outlet, and buffer tank gas outlet passes through external flange fixed connection with the one end of third pipeline.
Further, the turbine vacuum pump comprises a power motor, a high-speed gear box, a centrifugal impeller, a volute, a turbine vacuum pump air inlet and a turbine vacuum pump air outlet, wherein the power motor is fixedly connected with the high-speed gear box through a diaphragm coupler, a high-speed shaft of the high-speed gear box is fixedly connected with the centrifugal impeller, the volute is arranged on the high-speed gear box, the turbine vacuum pump air inlet is arranged at an axial air inlet of the volute, and the turbine vacuum pump air outlet is arranged at a tangential air outlet of the volute.
Further, an air inlet of the turbine vacuum pump is fixedly connected with the other end of the third pipeline, and an air outlet pipeline of the turbine vacuum pump is fixedly connected with the air outlet pipeline through an external flange.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
1. the utility model can improve the operation efficiency of the vacuum system, has high operation efficiency of the turbine vacuum pump, improves the efficiency by more than 30 percent compared with the water ring type vacuum pump, and has obvious energy-saving effect.
2. The utility model has good process matching performance, the performance curve of the centrifugal impeller of the turbine vacuum pump is matched with the process requirement of the paper molding machine, the extraction amount of the turbine vacuum pump is reduced along with the increase of vacuum under the condition of constant rotating speed, and the extraction amount is increased along with the decrease of vacuum degree, thereby meeting the change requirement of a process system, reducing the fluctuation of the vacuum degree of the system and maintaining the stability of the vacuum degree of the system.
3. The turbine vacuum pump system is simple, and water is not needed as a medium during operation, so that a water supply system is not needed to be configured.
Drawings
FIG. 1 is a schematic view of the construction of a turbine vacuum pump system of the present utility model;
FIG. 2 is an elevation view of the turbine vacuum pump of the present utility model;
FIG. 3 is a cross-sectional view of a turbine vacuum pump of the present utility model.
In the drawing, a 1-paper molding machine, a 11-paper molding machine extraction opening, a 2-gas-water separator, a 21-gas-water separator air inlet, a 22-gas-water separator air outlet, a 23-gas-water separator water outlet, a 3-buffer tank, a 31-buffer tank air inlet, a 32-buffer tank air outlet, a 4-turbine vacuum pump, a 41-power motor, a 42-high-speed gear box, a 43-centrifugal impeller, a 44-volute, a 45-turbine vacuum pump air inlet, a 46-turbine vacuum pump air outlet, a 47-diaphragm coupling, a 5-first pipeline, a 6-second pipeline, a 7-third pipeline, an 8-air outlet pipeline and a 9-vacuum degree detector.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail below by referring to the accompanying drawings and by illustrating preferred embodiments. It should be noted, however, that many of the details set forth in the description are merely provided to provide a thorough understanding of one or more aspects of the utility model, and that these aspects of the utility model may be practiced without these specific details.
As shown in fig. 1-3, a turbine vacuum pump system for pulp molding comprises a paper molding machine 1, a gas-water separator 2, a buffer tank 3 and a turbine vacuum pump 4, wherein one side of the paper molding machine 1 is fixedly connected with the side surface of the gas-water separator 2 through a first pipeline 5, the top end of the gas-water separator 2 is fixedly connected with the top end of the buffer tank 3 through a second pipeline 6, one side of the buffer tank 3 is fixedly connected with the turbine vacuum pump 4 through a third pipeline 7, the turbine vacuum pump 4 is connected with an air outlet pipeline 8, a vacuum degree detector 9 is arranged on the turbine vacuum pump 4, and the vacuum degree detector 9 can detect the vacuum degree on the turbine vacuum pump 4. The turbine vacuum pump system provided by the utility model consists of the paper die machine 1, the turbine vacuum pump 4, the buffer tank 3 and the gas-water separator 2, the vacuum degree requirement of the paper die machine 1 is met through the turbine vacuum pump 4, the operation efficiency is high, in addition, the system is enabled to operate more stably through the gas-water separator 2 and the buffer tank 3, the turbine vacuum system is simple in structure, good in process matching performance and suitable for wide use.
As shown in fig. 1, a paper molding machine air extracting opening 11 is arranged at one side of the paper molding machine 1, the paper molding machine air extracting opening 11 is fixedly connected with one end of the first pipeline 5 through an external flange, the paper molding machine 1 needs a vacuum system to realize the functions of vacuum dehydration, improving the dryness of paper molding, transferring finished products, cleaning molds and the like, the vacuum degree is a key parameter for ensuring the normal operation of the paper molding machine 1, the vacuum degree fluctuation is large according to the operation state of the paper molding machine 1, and the air extracting amount is small under the condition of large vacuum degree; under the condition of smaller vacuum degree, the pumping quantity is larger; the running state of the paper molding machine 1 is similar to the opening and closing state of a valve, when the valve is closed, the vacuum degree is increased, and the flow is reduced; when the valve is opened, the vacuum degree is reduced, and the flow is increased; the side of the gas-water separator 2 is provided with a gas-water separator gas inlet 21, the gas-water separator gas inlet 21 is fixedly connected with the other end of the first pipeline 5 through an external flange, the top end of the gas-water separator 2 is provided with a gas-water separator gas outlet 22, the gas-water separator gas outlet 22 is fixedly connected with one end of the second pipeline 6 through an external flange, the bottom of the inner side of the gas-water separator 2 is provided with a gas-water separator water outlet 23, and the gas-water separator 2 is used for effectively separating the gas mixed with water pumped from the paper die machine 1 so as to ensure air drying at the gas inlet of the turbine vacuum pump 4 and simultaneously avoid water vapor from corroding the centrifugal impeller 43; the top end of the buffer tank 3 is provided with a buffer tank air inlet 31, the buffer tank air inlet 31 is fixedly connected with the other end of the second pipeline 6 through an external flange, one side of the buffer tank 3 is provided with a buffer tank air outlet 32, the buffer tank air outlet 32 is fixedly connected with one end of the third pipeline 7 through an external flange, the buffer tank 3 is a key part in a pulp molding turbine vacuum pump system for adapting to the vacuum fluctuation buffer tank 3 in the working state of the paper mold machine 1, the effect of stabilizing the vacuum degree can be achieved, when the paper mold is used for improving the vacuum degree of the paper mold 1, and when the air extraction quantity is reduced, the vacuum pump can extract air from the buffer tank 3, and surging caused by the excessive vacuum degree at the inlet of the turbine vacuum pump 4 is avoided; when the vacuum degree of the paper die machine 1 is reduced and the air extraction amount is increased, the buffer tank 4 can store a certain air extraction amount, so that the vacuum degree of the inlet of the turbine vacuum pump 4 can be maintained, and the instantaneous overpower operation of the turbine vacuum pump 4 caused by the rapid reduction of the vacuum degree is avoided.
As shown in fig. 2-3, the turbine vacuum pump 4 comprises a power motor 41, a high-speed gear box 42, a centrifugal impeller 43, a volute 44, a turbine vacuum pump air inlet 45 and a turbine vacuum pump air outlet 46, wherein the power motor 41 is fixedly connected with the high-speed gear box 42 through a diaphragm coupler 47, a high-speed shaft of the high-speed gear box 42 is fixedly connected with the centrifugal impeller 43, the volute 44 is arranged on the high-speed gear box 42, the turbine vacuum pump air inlet 45 is arranged at an axial air inlet of the volute 44, and the turbine vacuum pump air outlet 46 is arranged at a tangential air outlet of the volute 44; the turbine vacuum pump air inlet 45 is fixedly connected with the other end of the third pipeline 7, and the turbine vacuum pump air outlet 46 is fixedly connected with the air outlet pipeline 8 through an external flange. The turbine vacuum pump 4 is used as a core component in a vacuum system, the turbine vacuum pump 4 adopts a high-speed gear box 42 to increase the rotating speed of a power motor 41 to the working rotating speed of a centrifugal impeller 43, and converts kinetic energy into fluid potential energy in a volute 44 after accelerating airflow so as to form vacuum at an air inlet of the centrifugal impeller 43, thereby forming airflow flow and vacuum gradient from a paper die machine 1 to an air outlet of the turbine vacuum pump 4; the turbine vacuum pump 4 has high operation efficiency, improves the efficiency by more than 30 percent compared with the water ring type vacuum pump, can improve the operation efficiency of a vacuum system and has obvious energy-saving effect; the process matching of the turbine vacuum pump 4 is good, and the performance curve of the centrifugal impeller 43 of the turbine vacuum pump 4 is matched with the process requirement of the paper die machine 1; the vacuum degree is a key parameter for ensuring the normal operation of the paper molding machine 1, the turbine vacuum pump 4 can realize the change of the vacuum degree and the extraction amount through the rotation speed adjustment, the process operation state of the paper molding machine 1 can be well adapted, under the condition that the rotation speed is unchanged, the extraction amount of the turbine vacuum pump 4 is reduced along with the increase of the vacuum, along with the decrease of the vacuum degree, the change requirement of a process system is met, and the fluctuation of the system vacuum degree can be reduced; in addition, the turbine vacuum pump 4 can adjust the rotating speed in real time according to the process requirement, and the actual requirement of a process system is matched, so that the stability of the vacuum degree of the system is maintained.
The turbine vacuum pump 4 is adopted, the operation efficiency of the turbine vacuum pump 4 is high, the operation efficiency of a vacuum system can be improved, the starting losses of the turbine vacuum pump 4, a pipeline, the buffer tank 3 and the steam-water separator 2 are minimized by combining the arrangement of the buffer tank 3 and the steam-water separator 2, the process matching performance is good, the fluctuation of the vacuum degree is reduced, the product quality and the stability can be improved, the efficiency of the water-ring type vacuum system is improved by more than 30%, and the energy-saving effect is obvious; the process matching performance of the utility model is good, the performance curve of the centrifugal impeller 43 of the turbine vacuum pump 4 is matched with the process requirement of the paper die machine 1, under the condition of constant rotating speed, the extraction quantity of the turbine vacuum pump is reduced along with the increase of vacuum, and along with the decrease of vacuum, the extraction quantity is increased along with the decrease of vacuum, thereby meeting the change requirement of a process system and reducing the fluctuation of the vacuum of the system; in addition, the turbine vacuum pump can adjust the rotating speed in real time according to the process requirement, and the actual requirement of a process system is matched, so that the stability of the vacuum degree of the system is maintained.
Principle of operation
The gas mixed with water in the paper die machine 1 is discharged from the paper die machine air suction port 11, is pumped into the steam-water separator 2 from the steam-water separator air inlet 21 through the first pipeline 5 to be effectively separated, the water separated from the steam-water separator 2 is discharged from the steam-water separator air outlet 23, the gas separated from the steam-water separator 2 is discharged from the steam-water separator air outlet 22, the gas enters the buffer tank 3 from the buffer tank air inlet 31 through the second pipeline 6, the gas is buffered in the buffer tank 3 and then discharged from the buffer tank air outlet 32, the buffered gas enters the turbine vacuum pump 4 from the turbine vacuum pump air inlet 45 through the third pipeline 7, the turbine vacuum pump 4 adopts the high-speed gear box 42 to increase the rotating speed of the power motor 41 to the working rotating speed of the centrifugal impeller 43, the kinetic energy is converted into fluid potential energy in the volute 44 after the gas flow is accelerated, and vacuum is formed at the air inlet of the centrifugal impeller 43, so that the gas flow and the vacuum gradient from the paper die machine 1 to the air outlet of the turbine vacuum pump 4 are formed.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (6)
1. A turbine vacuum pump system for pulp molding, characterized by: including paper mould machine (1), gas-water separator (2), buffer tank (3) and turbine vacuum pump (4), one side of paper mould machine (1) and the side of gas-water separator (2) are through first pipeline (5) fixed connection, the top of gas-water separator (2) and the top of buffer tank (3) are through second pipeline (6) fixed connection, one side of buffer tank (3) and turbine vacuum pump (4) are through third pipeline (7) fixed connection, turbine vacuum pump (4) are connected with pipeline (8) of giving vent to anger, be provided with vacuum degree detector (9) on turbine vacuum pump (4).
2. A turbine vacuum pump system for pulp molding as defined in claim 1, wherein: one side of the paper die machine (1) is provided with a paper die machine air extraction opening (11), and the paper die machine air extraction opening (11) is fixedly connected with one end of the first pipeline (5) through an external flange.
3. A turbine vacuum pump system for pulp molding as defined in claim 1, wherein: the side of the gas-water separator (2) is provided with a gas-water separator gas inlet (21), the gas-water separator gas inlet (21) is fixedly connected with the other end of the first pipeline (5) through an external flange, the top end of the gas-water separator (2) is provided with a gas-water separator gas outlet (22), the gas-water separator gas outlet (22) is fixedly connected with one end of the second pipeline (6) through an external flange, and the bottom of the inner side of the gas-water separator (2) is provided with a gas-water separator water outlet (23).
4. A turbine vacuum pump system for pulp molding as defined in claim 1, wherein: the top of buffer tank (3) is provided with buffer tank air inlet (31), and buffer tank air inlet (31) and the other end of second pipeline (6) pass through external flange fixed connection, and one side of buffer tank (3) is provided with buffer tank gas outlet (32), and buffer tank gas outlet (32) and the one end of third pipeline (7) pass through external flange fixed connection.
5. A turbine vacuum pump system for pulp molding as defined in claim 1, wherein: the turbine vacuum pump (4) comprises a power motor (41), a high-speed gear box (42), a centrifugal impeller (43), a volute (44), a turbine vacuum pump air inlet (45) and a turbine vacuum pump air outlet (46), wherein the power motor (41) is fixedly connected with the high-speed gear box (42) through a diaphragm coupler (47), a high-speed shaft of the high-speed gear box (42) is fixedly connected with the centrifugal impeller (43), the volute (44) is arranged on the high-speed gear box (42), the turbine vacuum pump air inlet (45) is arranged at an axial air inlet of the volute (44), and the turbine vacuum pump air outlet (46) is arranged at a tangential air outlet of the volute (44).
6. A turbine vacuum pump system for pulp molding as recited in claim 5, wherein: an air inlet (45) of the turbine vacuum pump is fixedly connected with the other end of the third pipeline (7), and an air outlet pipeline (8) of the turbine vacuum pump (46) is fixedly connected with an external flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320697353.6U CN219752849U (en) | 2023-03-31 | 2023-03-31 | Turbine vacuum pump system for pulp molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320697353.6U CN219752849U (en) | 2023-03-31 | 2023-03-31 | Turbine vacuum pump system for pulp molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219752849U true CN219752849U (en) | 2023-09-26 |
Family
ID=88084432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320697353.6U Active CN219752849U (en) | 2023-03-31 | 2023-03-31 | Turbine vacuum pump system for pulp molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219752849U (en) |
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2023
- 2023-03-31 CN CN202320697353.6U patent/CN219752849U/en active Active
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