CN214619077U - Vacuumizing replacement ventilation system - Google Patents
Vacuumizing replacement ventilation system Download PDFInfo
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- CN214619077U CN214619077U CN202023267660.6U CN202023267660U CN214619077U CN 214619077 U CN214619077 U CN 214619077U CN 202023267660 U CN202023267660 U CN 202023267660U CN 214619077 U CN214619077 U CN 214619077U
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- outlet pipe
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Abstract
The utility model discloses a vacuumizing displacement ventilation system, which comprises a gas pipeline, a displacer, a vacuumizing mechanism and a steel cylinder, wherein the displacer comprises a shell, and an air inlet pipe, a filter, an air outlet pipe and a collecting pipe which are arranged in the shell; this evacuation replacement ventilation system collects the transfer station of sample as the natural gas through setting up the displacer, wherein utilizes the steel bottle to collect the natural gas, then utilizes the evacuation mechanism to carry out the evacuation in steel bottle and the displacer to ensure that there is not the air in steel bottle and the displacer basically, realize the accurate sample of natural gas.
Description
Technical Field
The utility model belongs to the technical field of the gas technique and specifically relates to a vacuum-pumping replacement ventilation system is related to.
Background
In the gas pipe network, after every interval, need detect the quality of the natural gas before entering the family to guarantee security, service quality etc. that the user used, current natural gas sample adopts the steel bottle directly to collect the natural gas at gas pipeline's sample connection usually, and the natural gas purity of this kind of mode is not high, contains a large amount of air in the steel bottle, so can influence subsequent testing result.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art, the utility model aims to provide an evacuation replacement ventilation system of accurate sample.
In order to achieve the above purpose, the utility model provides a scheme does: a vacuum-pumping replacement ventilation system, which comprises a gas pipeline, a displacer, a vacuum-pumping mechanism and a steel cylinder, the displacer comprises a shell, and an air inlet pipe, a filter, an air outlet pipe and a collecting pipe which are arranged in the shell, the gas inlet pipe is connected with the gas pipeline, a filter cavity is arranged in the filter, the filter is respectively provided with a gas inlet, a gas outlet and a discharge port, the air inlet is connected with the air inlet pipe, the air outlet is connected with the air outlet pipe, a filter screen is arranged in the filter cavity and used for filtering impurities in the fuel gas, and the bottom of the filter cavity is provided with a material collecting groove for collecting impurities in the fuel gas, the discharge opening is upwards connected with the material collecting groove for discharging the impurities in the material collecting groove, a switch valve is arranged at the discharge port, a collection port is formed in the gas outlet pipe and is connected with the collection pipe, and the collection pipe is detachably connected with the steel cylinder;
the vacuumizing mechanism comprises a vacuum pump, an adjusting valve, a negative pressure safety valve and two explosion-proof hoses, wherein the adjusting valve is connected with the air outlet pipe through one explosion-proof hose, the adjusting valve is connected with the vacuum pump through the other explosion-proof hose, and the vacuum pump is connected with the negative pressure safety valve.
The utility model has the advantages that: the vacuumizing displacement ventilation system is provided with a displacer and used as a transfer station for collecting and sampling natural gas, wherein a steel cylinder is used for collecting the natural gas, and then a vacuumizing mechanism is used for vacuumizing the steel cylinder and the displacer so as to ensure that air does not exist in the steel cylinder and the displacer basically and realize the accurate sampling of the natural gas; simultaneously, utilize the filter to filter in the natural gas of gas pipeline output to the impurity of filtering and collecting the natural gas, thereby ensure that the natural gas in the steel bottle does not contain other impurity, thereby influence subsequent natural gas testing result.
Furthermore, the gas pipeline is provided with a detection port, the detection port is provided with a switch valve, and the detection port is connected with the gas inlet pipe through a connecting hose. The utility model adopts the above structure after, realize gas pipeline connection intake pipe.
Furthermore, switch valves are arranged on the collecting pipe and the air outlet pipe. The utility model adopts the above structure after, realize opening or close collecting pipe and outlet duct.
Furthermore, the air outlet pipe is arranged in the shell in an S-shaped winding mode.
Further, the vacuum pumping mechanism further comprises a vacuum negative pressure gauge, and the vacuum negative pressure gauge is arranged on the regulating valve and used for detecting the pressure of the regulating valve. The utility model adopts the above structure after to the pressure of real-time detection governing valve, so that adjust the governing valve in real time.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the displacer according to the present invention.
The gas detection device comprises a gas pipeline 1, a detection port 11, a connecting hose 12, a displacer 2, a shell 21, an air inlet pipe 22, a filter 23, an air inlet 231, an air outlet 232, a discharge port 233, a material collecting tank 234, a filter screen 235, an air outlet pipe 24, a collecting pipe 25, a vacuum pump 31, a regulating valve 32, a negative pressure safety valve 33, an explosion-proof hose 34, a vacuum negative pressure gauge 35, a steel cylinder 4 and a switch valve 5.
Detailed Description
The invention will be further described with reference to the following specific embodiments:
referring to fig. 1 to 2, a vacuumizing displacement ventilation system comprises a gas pipeline 1, a displacer 2, a vacuumizing mechanism and a steel cylinder 4, wherein the displacer 2 comprises a shell 21, an air inlet pipe 22, a filter 23, an air outlet pipe 24 and a collecting pipe 25 which are arranged in the shell 21, the air inlet pipe 22 is connected with the gas pipeline 1, a filter chamber 236 is arranged in the filter 23, the filter 23 is respectively provided with an air inlet 231, an air outlet 232 and a material outlet 233, the air inlet 231 is connected with the air inlet pipe 22, the air outlet 232 is connected with the air outlet pipe 24, a filter screen 235 is arranged in the filter chamber 236 for filtering impurities in the gas, a material collecting groove 234 is arranged at the bottom of the filter chamber 236 for collecting the impurities in the gas, the material outlet 233 is upwards connected with the material collecting groove 234 for discharging the impurities in the material collecting groove 234, a switch valve 5 is arranged at the material outlet 233, and a collecting opening is arranged on the air outlet pipe 24, the collecting port is connected with a collecting pipe 25, and the collecting pipe 25 is detachably connected with the steel cylinder 4; the gas pipeline 1 is provided with a detection port 11, the detection port 11 is provided with a switch valve 5, and the detection port 11 is connected with an air inlet pipe 22 through a connecting hose 12.
The vacuumizing mechanism comprises a vacuum pump 31, an adjusting valve 32, a negative pressure safety valve 33, two anti-explosion hoses 34 and a vacuum negative pressure meter 35, the adjusting valve 32 is connected with the air outlet pipe 24 through one anti-explosion hose 34, the adjusting valve 32 is connected with the vacuum pump 31 through the other anti-explosion hose 34, the vacuum pump 31 is connected with the negative pressure safety valve 33, and the vacuum negative pressure meter 35 is arranged on the adjusting valve 32 and used for detecting the pressure of the adjusting valve 32.
The collecting pipe 25 and the air outlet pipe 24 are provided with a switch valve 5, and the air outlet pipe 24 is arranged on the shell 21 in an S-shaped winding manner.
In this embodiment, the specific natural gas sampling process is: firstly, connecting a steel cylinder 4 with a collecting pipe 25, then closing a switch valve 5 on the collecting pipe 25, and synchronously opening the switch valve 5 of an air outlet pipe 24; at the moment, the vacuum pump 31 is started to suck and draw away the air in the air inlet pipe 22, the filter 23 and the air outlet pipe 24 in the displacer 2, the regulating valve 32 is adjusted according to the actual conditions, then the switch valve 5 of the collecting pipe 25 is opened, the switch valve 5 of the air outlet pipe 24 is closed, at the moment, the air in the steel cylinder 4 enters the air pipe 22, the filter 23 and the air outlet pipe 24 due to pressure difference, but the air in the steel cylinder 4 can be diluted, then the switch valve 5 of the detection port 11 is opened, the natural gas enters the air inlet pipe 22, the filter 23, the air outlet pipe 24 and the steel cylinder 4 through the connecting hose 12, finally the switch valve 5 of the detection port 11 is closed, the switch valve 5 of the air outlet pipe 24 is opened, and the vacuum pump 31 sucks the natural gas and the air in the air inlet pipe 22, the filter 23, the air outlet pipe 24 and the steel cylinder 4;
repeating the steps for 2-4 times, the air in the air inlet pipe 22, the filter 23, the air outlet pipe 24 and the steel cylinder 4 can be discharged, so that the air inlet pipe 22, the filter 23, the air outlet pipe 24 and the steel cylinder 4 are filled with natural gas, the sampling of the natural gas is realized, and the quality of the natural gas in the steel cylinder 4 is ensured.
The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way. Those skilled in the art can make further changes and modifications to the invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention. Therefore, the content of the technical scheme of the utility model, according to the equivalent change made by the idea of the utility model, should be covered in the protection scope of the utility model.
Claims (5)
1. The utility model provides a vacuum pumping replacement ventilation system, includes gas pipeline (1), displacer (2), evacuation mechanism and steel bottle (4), its characterized in that: the displacer (2) comprises a shell (21) and an air inlet pipe (22), a filter (23), an air outlet pipe (24) and a collecting pipe (25) which are arranged in the shell (21), wherein the air inlet pipe (22) is connected with the gas pipeline (1), a filter chamber (236) is arranged in the filter (23), the filter (23) is respectively provided with an air inlet (231), an air outlet (232) and a discharge outlet (233), the air inlet (231) is connected with the air inlet pipe (22), the air outlet (232) is connected with the air outlet pipe (24), a filter screen (235) is arranged in the filter chamber (236) and used for filtering impurities in gas, a material collecting groove (234) is arranged at the bottom of the filter chamber (236) and used for collecting impurities in gas, the discharge outlet (233) is upwards connected with the material collecting groove (234) and used for discharging the impurities in the material collecting groove (234), a switch valve (5) is arranged at the discharge port (233), the gas outlet pipe (24) is provided with a collecting port, the collecting port is connected with the collecting pipe (25), and the collecting pipe (25) is detachably connected with the steel cylinder (4);
the vacuumizing mechanism comprises a vacuum pump (31), a regulating valve (32), a negative pressure safety valve (33) and two explosion-proof hoses (34), wherein the regulating valve (32) is connected with the air outlet pipe (24) through one explosion-proof hose (34), meanwhile, the regulating valve (32) is connected with the vacuum pump (31) through the other explosion-proof hose (34), and the vacuum pump (31) is connected with the negative pressure safety valve (33).
2. An evacuated replacement vent system according to claim 1, wherein: gas pipeline (1) is gone up to open has detection mouth (11), detection mouth (11) department is provided with ooff valve (5), just detection mouth (11) are connected through a connecting hose (12) intake pipe (22).
3. An evacuated replacement vent system according to claim 1, wherein: and the collecting pipe (25) and the air outlet pipe (24) are provided with switch valves (5).
4. An evacuated replacement vent system according to claim 1, wherein: the air outlet pipe (24) is arranged in the shell (21) in an S-shaped winding mode.
5. An evacuated replacement vent system according to claim 1, wherein: the vacuumizing mechanism further comprises a vacuum negative pressure meter (35), and the vacuum negative pressure meter (35) is arranged on the regulating valve (32) and used for detecting the pressure of the regulating valve (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023267660.6U CN214619077U (en) | 2020-12-30 | 2020-12-30 | Vacuumizing replacement ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023267660.6U CN214619077U (en) | 2020-12-30 | 2020-12-30 | Vacuumizing replacement ventilation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214619077U true CN214619077U (en) | 2021-11-05 |
Family
ID=78433844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023267660.6U Active CN214619077U (en) | 2020-12-30 | 2020-12-30 | Vacuumizing replacement ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214619077U (en) |
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2020
- 2020-12-30 CN CN202023267660.6U patent/CN214619077U/en active Active
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