CN209801165U - Negative pressure vacuum replacement device for gas pipeline - Google Patents
Negative pressure vacuum replacement device for gas pipeline Download PDFInfo
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- CN209801165U CN209801165U CN201920559459.3U CN201920559459U CN209801165U CN 209801165 U CN209801165 U CN 209801165U CN 201920559459 U CN201920559459 U CN 201920559459U CN 209801165 U CN209801165 U CN 209801165U
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- negative pressure
- replacement device
- vacuum
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Abstract
The utility model relates to a gas pipeline engineering's technical field to a gas pipeline negative pressure vacuum replacement device is disclosed, including vacuum pump, vacuum manometer, cross connection, bellows and with the connecting pipe that the vacuum pump is connected, the middle part of connecting pipe inserts cartridge filter and check valve in proper order, cross connection's first opening is connected to the end of connecting pipe, the vacuum manometer with the bellows corresponds respectively to be connected to cross connection's second opening and third opening, the bellows with be provided with the copper ball valve between the cross connection, the bellows is connected with the gas pipeline, cross connection's fourth opening sets up to the inspection opening, detect the mouth and cooperate with outside gas detector. The utility model has the characteristics of the security performance is high, simple structure.
Description
Technical Field
The utility model relates to a gas pipeline engineering's technical field specifically is a gas pipeline negative pressure vacuum replacement device.
Background
At present, the gas pipeline of a newly-received building is replaced by directly replacing the replaced object in the later period, but because the current developers have different types of gas pipeline design and installation due to aesthetic requirements, the operation difficulty and operation safety danger are increased in the later period replacement, the replacement coverage of the pipeline cannot be comprehensive, and the ventilation personnel going to the door in the later period need to continue to replace the common vertical pipe by the indoor pipeline for the second time, so that the operation safety of the ventilation personnel in the door is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas pipeline negative pressure vacuum replacement device, it has the security performance height, simple structure's characteristics.
In order to realize the purpose, the utility model adopts the technical scheme that:
The utility model provides a gas pipeline negative pressure vacuum replacement device, include vacuum pump, vacuum manometer, cross connection, bellows and with the connecting pipe that the vacuum pump is connected, cartridge filter and check valve are inserted in proper order to the middle part of connecting pipe, cross connection's first opening is connected to the end of connecting pipe, vacuum manometer with the bellows corresponds respectively to be connected to cross connection's second opening and third opening, the bellows with be provided with the copper ball valve between the cross connection, the bellows is connected with the gas pipeline, cross connection's fourth opening sets up to the inspection mouth, it cooperatees with outside gas detector to detect the mouth.
Further, a gas pipeline negative pressure vacuum replacement device still includes drags coil and removal mounting bracket, be provided with in dragging the coil and be connected to the electric wire of vacuum pump, drag the coil with the vacuum pump is all installed on removing the mounting bracket, remove the mounting bracket lower part and be provided with the gyro wheel.
Furthermore, a control valve is installed at the fourth port.
Furthermore, the first port with the third port sets up relatively, the second port with the fourth port sets up relatively.
Further, the copper ball valve is a quarter ball valve.
Further, the vacuum pump is a rotary vane vacuum pump.
Further, the corrugated pipe is a quarter corrugated pipe.
The utility model has the advantages that: the utility model discloses utilize the vacuum pump to make the pipeline reach vacuum state and carry out the natural gas replacement of later stage building gas pipeline, need not to discharge the mixture of natural gas replacement outdoor, the operational safety can be high.
On the other hand, design drag coil and removal mounting bracket, make the utility model discloses wholly can remove, thereby the order the utility model discloses an enlarge application area, utilize the gyro wheel to remove convenient operation during the removal.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the device comprises a vacuum pump 1, a vacuum manometer 2, a four-way joint 3, a corrugated pipe 4, a connecting pipe 5, a cylindrical filter 6, a check valve 7, a copper ball valve 8, an inspection port 9 and a coil dragging 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
As shown in fig. 1, a gas pipeline negative pressure vacuum replacement device is disclosed, including vacuum pump 1, vacuum manometer 2, cross connection 3, bellows 4 and with connecting pipe 5 that the vacuum pump is connected, the middle part of connecting pipe 5 inserts cartridge filter 6 and check valve 7 in proper order, cross connection 3's first opening is connected to connecting pipe 5's end, vacuum manometer 2 with bellows 4 corresponds respectively to be connected to cross connection 3's second opening and third opening, bellows 4 with be provided with copper ball valve 8 between the cross connection 3, bellows 4 is connected with the gas pipeline, cross connection 3's fourth opening sets up to inspection opening 9, it cooperatees with outside gas detector to detect the mouth. Wherein the external gas detector is a conventional tester for detecting whether the gas pipeline leaks gas or not.
Further, still including dragging coil 10 and removal mounting bracket, be provided with in dragging coil 10 and be connected to the electric wire of vacuum pump 1, drag coil 10 with vacuum pump 1 all installs on removal mounting bracket, removal mounting bracket lower part is provided with the gyro wheel.
Furthermore, a control valve is installed at the fourth port.
Furthermore, the first port with the third port sets up relatively, the second port with the fourth port sets up relatively.
Further, the copper ball valve 8 is a quarter ball valve.
Further, the vacuum pump 1 is a rotary vane vacuum pump.
Further, the corrugated pipe 4 is a quarter corrugated pipe.
The utility model has the advantages that: the utility model discloses utilize vacuum pump 1 to make the pipeline reach vacuum state and carry out the natural gas replacement of later stage building gas pipeline, need not to discharge the mixture of natural gas replacement outdoor, the operation security performance is high.
On the other hand, design and drag coil 10 and removal mounting bracket, make the utility model discloses wholly can remove, thereby the order the utility model discloses an enlarge application area, utilize the gyro wheel to remove convenient operation during the removal.
The scheme of the utility model can be operated in the basement, thereby greatly improving the flexibility of the operation space; the natural gas replacement is in-pipe replacement, and the safety of operators is greatly reduced without discharging a natural gas mixture outside the pipe; the utility model discloses it is consuming time to reduce the replacement, provides work efficiency.
The working process of the utility model is mainly as follows: closing a pipeline valve behind a gas pipe pressure regulating device to be replaced, detecting whether an inspection opening 9 is in a sealing state by using an external gas detector, vacuumizing by using a vacuum pump 1 until the vacuum degree reaches-0.08 MPa after the inspection opening is detected to be in the sealing state, and then performing natural gas replacement. When the internal vacuum degree of the gas pipeline reaches-0.08 MPa, the concentration of air in the pipeline is diluted to a certain degree, so that the concentration in the pipeline reaches the acceptance standard when natural gas is used for replacement in the later period, the replacement coverage can be more comprehensively covered due to the characteristic of vacuum, and the natural gas replacement process is in-pipeline operation, so that the mixture replaced by the natural gas does not need to be discharged outdoors.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (7)
1. the utility model provides a gas pipeline negative pressure vacuum replacement device which characterized in that: including vacuum pump, vacuum manometer, four way connection, bellows and with the connecting pipe that the vacuum pump is connected, cylinder filter and check valve are inserted in proper order to the middle part of connecting pipe, four way connection's first opening is connected to the end of connecting pipe, the vacuum manometer with the bellows corresponds respectively to be connected to four way connection's second opening and third opening, the bellows with be provided with the copper ball valve between the four way connection, the bellows is connected with the gas pipeline, four way connection's fourth opening sets up to the inspection opening, the inspection opening cooperatees with outside gas detector.
2. The negative pressure vacuum replacement device for the gas pipeline as claimed in claim 1, wherein: still including dragging coil and removal mounting bracket, be provided with in dragging the coil and be connected to the electric wire of vacuum pump, drag the coil with the vacuum pump is all installed on removal mounting bracket, removal mounting bracket lower part is provided with the gyro wheel.
3. The negative pressure vacuum replacement device for the gas pipeline as claimed in claim 1, wherein: and a control valve is installed at the fourth port.
4. The negative pressure vacuum replacement device for the gas pipeline as claimed in claim 1, wherein: the first through opening with the third through opening sets up relatively, the second through opening with the fourth through opening sets up relatively.
5. The negative pressure vacuum replacement device for the gas pipeline as claimed in claim 1, wherein: the copper ball valve is a quarter ball valve.
6. The negative pressure vacuum replacement device for the gas pipeline as claimed in claim 1, wherein: the vacuum pump is a rotary vane vacuum pump.
7. The negative pressure vacuum replacement device for the gas pipeline as claimed in claim 1, wherein: the corrugated pipe is a quarter corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920559459.3U CN209801165U (en) | 2019-04-23 | 2019-04-23 | Negative pressure vacuum replacement device for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920559459.3U CN209801165U (en) | 2019-04-23 | 2019-04-23 | Negative pressure vacuum replacement device for gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209801165U true CN209801165U (en) | 2019-12-17 |
Family
ID=68830614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920559459.3U Active CN209801165U (en) | 2019-04-23 | 2019-04-23 | Negative pressure vacuum replacement device for gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209801165U (en) |
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2019
- 2019-04-23 CN CN201920559459.3U patent/CN209801165U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528000 Jihua five road, Chancheng District, Foshan, Guangdong Province, No. 25 Patentee after: Fo ran Energy Group Co.,Ltd. Address before: 528000 Jihua five road, Chancheng District, Foshan, Guangdong Province, No. 25 Patentee before: FOSHAN GAS GROUP CO.,LTD. |