CN221096761U - Low pressure circulation device - Google Patents
Low pressure circulation device Download PDFInfo
- Publication number
- CN221096761U CN221096761U CN202323298160.2U CN202323298160U CN221096761U CN 221096761 U CN221096761 U CN 221096761U CN 202323298160 U CN202323298160 U CN 202323298160U CN 221096761 U CN221096761 U CN 221096761U
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- connecting pipeline
- hand valve
- output end
- low pressure
- gas
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- 230000000694 effects Effects 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to the technical field of low pressure, in particular to a low pressure circulating device which comprises a vacuum pump set and a connecting pipeline, wherein the connecting pipeline is in bolt connection with the output end of the vacuum pump set, the output end of the connecting pipeline is in bolt connection with a first hand valve, one end of the connecting pipeline, which is far away from the first hand valve, is in bolt connection with a second hand valve, one side of the connecting pipeline, which is located at the output end of the second hand valve, is provided with a user load end, one side of the connecting pipeline, which is far away from the user load end, is in bolt connection with a third hand valve, and one side of the connecting pipeline, which is located at the output end of the third hand valve, is provided with a gas mass flowmeter. According to the utility model, by arranging the vacuum pump set, the user load end, the gas mass flowmeter, the circulating assembly and the vacuum gauge, the vacuum degree and the leakage rate of the device are not influenced when a low-pressure circulating experiment is carried out, so that the problem that the vacuum degree and the leakage rate of the device are difficult to simultaneously take into account when the device is operated is solved, and the circulating effect and the environmental protection performance of equipment are further improved.
Description
Technical Field
The utility model relates to the technical field of low pressure, in particular to a low pressure circulating device.
Background
When pressure difference exists at two ends of the vacuum pipeline, gas automatically diffuses from a high pressure position to a low pressure position, so that gas flow is formed; as the flow rate and pressure decrease, in the low vacuum region, the flow changes from turbulent to regular laminar flow, each section having a different velocity flow layer, the streamlines being parallel to the tube axis, the viscous forces of the gas dominate the flow.
The inventor finds that in daily work, in the process of using a circulating device to carry out a low-pressure circulating experiment, the structure of the existing low-pressure circulating device is simpler, and a gas mass flowmeter and a vacuum gauge in the device are directly communicated, so that in the process of carrying out the experiment, when gas passes through the gas mass flowmeter and the vacuum gauge, the flow rate of the gas can be reduced, the gas in the device is difficult to flow at a constant speed, and the circulating effect of the gas is poor in the process of running the device.
Disclosure of utility model
The utility model aims to solve the defects that in the prior art, when gas passes through a gas mass flowmeter and a vacuum gauge, the flow rate of the gas can be reduced, so that the gas in the device is difficult to flow at a constant speed, and the gas circulation effect is poor in the running process of the device.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a low pressure circulating device, includes vacuum pump package and connecting tube, connecting tube and the bolt of the output of vacuum pump package mutually, connecting tube's output bolt has first hand valve.
Preferably, one end of the connecting pipeline far away from the first hand valve is bolted with the second hand valve, the first hand valve is arranged, and a worker can control the connection state between the vacuum pump set and the second hand valve through the first hand valve, so that the operation state of the equipment can be controlled conveniently.
Preferably, the connecting pipeline is provided with the user load end on one side of the output end of the second hand valve, and the second hand valve is arranged, so that the connection between the connecting pipeline and the user load end can be disconnected through the second hand valve, and the installation between the user load end and the connecting pipeline can be conveniently carried out by staff.
Preferably, a third hand valve is bolted to the side of the connecting pipe remote from the user load end.
Preferably, a gas mass flowmeter is arranged on one side of the connecting pipeline, which is positioned at the output end of the third hand valve, and the gas flowing in the pipeline can be detected through the gas mass flowmeter when the device operates so as to realize the detection effect on the gas flow rate.
Preferably, a circulating assembly is arranged on one side of the connecting pipeline, which is positioned at the output end of the gas mass flowmeter.
Preferably, the connecting pipeline is provided with the vacuum gauge on one side of the output end of the circulating assembly, the vacuum gauge is arranged, gas in the connecting pipeline can be monitored through the vacuum gauge, and meanwhile, whether leakage exists in the device or not can be detected through the action of the vacuum gauge body.
Compared with the prior art, the utility model has the advantages and positive effects that:
According to the utility model, when an experiment is carried out by arranging the vacuum pump set, the user load end, the gas mass flowmeter, the circulating assembly and the vacuum gauge, the first hand valve, the second hand valve and the third hand valve are operated, so that the states of the three hand valves are all in an open position, the switch of the vacuum pump set is immediately opened, the vacuum pump set is electrified to work, the gas in the connecting pipeline is pumped out by the vacuum pump set, the gas pressure of the gas in the connecting pipeline is gradually reduced under the action of the vacuum pump set, when the gas pressure is reduced to a preset experiment critical value, the first hand valve is closed, the connection between the vacuum pump set and the connecting pipeline is cut off, the connecting pipeline is enabled to form a circulation, the gas in the connecting pipeline is enabled to circulate in the connecting pipeline and the user load end under the action of the circulating assembly, the gas is guided by the connecting pipeline, the gas mass flowmeter and the vacuum gauge are gradually monitored in the gas flowing process, and the gas mass flowmeter and the vacuum gauge are arranged, the degree and the pressure of the gas are not influenced when the low-pressure circulation experiment is carried out, the vacuum experiment device is further reduced, the vacuum experiment efficiency is further improved, and the environment-friendly effect of the device is further improved.
Drawings
Fig. 1 is a schematic perspective view of a low pressure circulation device according to the present utility model;
FIG. 2 is a schematic side view of a low pressure circulation device according to the present utility model;
Fig. 3 is a schematic bottom view of a low pressure circulation device according to the present utility model.
Legend description:
1. A vacuum pump unit; 2. a connecting pipe; 3. a first hand valve; 4. a second hand valve; 5. a user load end; 6. a third hand valve; 7. a gas mass flow meter; 8. a circulation assembly; 9. and (5) a vacuum gauge.
Detailed Description
Referring to fig. 1-3, the present utility model provides a technical solution: a low-pressure circulating device comprises a vacuum pump set 1 and a connecting pipeline 2, wherein the connecting pipeline 2 is bolted with the output end of the vacuum pump set 1.
In this embodiment: the output end of the connecting pipeline 2 is bolted with a first hand valve 3.
Specifically, the one end of connecting tube 2 that keeps away from first hand valve 3 is bolted and is had second hand valve 4, sets up first hand valve 3, can supply the connected state between staff control vacuum pump package 1 and the second hand valve 4 through first hand valve 3 to be convenient for control the running state of equipment.
Specifically, the connecting pipe 2 is provided with a user load end 5 at one side of the output end of the second hand valve 4.
In this embodiment: the second hand valve 4 is arranged, and the connection between the connecting pipeline 2 and the user load end 5 can be disconnected through the second hand valve 4, so that a worker can conveniently install the connection pipeline 2 and the user load end 5.
In particular, the side of the connecting conduit 2 remote from the user load end 5 is bolted with a third hand valve 6.
In this embodiment: the connecting pipe 2 is provided with a gas mass flowmeter 7 at one side of the output end of the third hand valve 6.
In this embodiment: the gas mass flowmeter 7 is arranged, and the gas flowing in the pipeline can be detected when the device is operated through the gas mass flowmeter 7 so as to realize the detection effect on the gas flow rate.
Specifically, the connecting pipe 2 is provided with a circulation assembly 8 at one side of the output end of the gas mass flowmeter 7.
Specifically, the connecting pipe 2 is provided with a vacuum gauge 9 at one side of the output end of the circulation assembly 8.
In this embodiment: the vacuum gauge 9 is arranged, the gas in the connecting pipeline 2 can be monitored through the vacuum gauge 9, and meanwhile, whether the device leaks or not can be detected through the action of the vacuum gauge 9 body.
Working principle: when an experiment is carried out, the first hand valve 3, the second hand valve 4 and the third hand valve 6 are operated, the three hand valves are in an open position, the switch of the vacuum pump set 1 is opened immediately, the vacuum pump set 1 is electrified to work, gas in the connecting pipeline 2 is pumped out by the vacuum pump set 1, the gas pressure in the connecting pipeline 2 is gradually reduced under the action of the vacuum pump set 1, when the gas pressure is reduced to a preset experiment critical value, the first hand valve 3 is closed, the connection between the vacuum pump set 1 and the connecting pipeline 2 is cut off, the connecting pipeline 2 is enabled to form circulation, the gas in the connecting pipeline 2 is enabled to circulate in the connecting pipeline 2 and the user load end 5 under the action of the circulating component 8, the gas is guided by the connecting pipeline 2 and gradually passes through the gas mass flowmeter 7 and the vacuum gauge 9, the gas mass flowmeter 7 and the vacuum gauge 9 are monitored in the process of gas flow, and the flow rate and the pressure of the gas are set up, the vacuum pump set 1, the user load end 5, the gas mass flowmeter 7, the circulating component 8 and the vacuum gauge 9 are arranged, the low-pressure circulation device is enabled to not to influence the vacuum device, the vacuum device is further environment-friendly performance is further improved, and the leak rate of the experiment device is further improved, and the experiment device is difficult to run and the experiment is difficult to run.
Claims (7)
1. The utility model provides a low pressure circulation device, includes vacuum pump package (1) and connecting tube (2), its characterized in that: the connecting pipeline (2) is bolted with the output end of the vacuum pump set (1), and the output end of the connecting pipeline (2) is bolted with the first hand valve (3).
2. A low pressure circulation device according to claim 1, wherein: and one end of the connecting pipeline (2) far away from the first hand valve (3) is bolted with a second hand valve (4).
3. A low pressure circulation device according to claim 2, characterized in that: one side of the connecting pipeline (2) positioned at the output end of the second hand valve (4) is provided with a user load end (5).
4. A low pressure circulation device according to claim 3, wherein: and a third hand valve (6) is bolted to one side of the connecting pipeline (2) far away from the user load end (5).
5. The low pressure circulation device of claim 4, wherein: and one side of the connecting pipeline (2) positioned at the output end of the third hand valve (6) is provided with a gas mass flowmeter (7).
6. A low pressure circulation device according to claim 5, wherein: one side of the connecting pipeline (2) positioned at the output end of the gas mass flowmeter (7) is provided with a circulating assembly (8).
7. The low pressure circulation device of claim 6, wherein: one side of the connecting pipeline (2) positioned at the output end of the circulating assembly (8) is provided with a vacuum gauge (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323298160.2U CN221096761U (en) | 2023-12-05 | 2023-12-05 | Low pressure circulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323298160.2U CN221096761U (en) | 2023-12-05 | 2023-12-05 | Low pressure circulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221096761U true CN221096761U (en) | 2024-06-07 |
Family
ID=91316133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323298160.2U Active CN221096761U (en) | 2023-12-05 | 2023-12-05 | Low pressure circulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221096761U (en) |
-
2023
- 2023-12-05 CN CN202323298160.2U patent/CN221096761U/en active Active
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