CN214763960U - Natural gas ball valve blowdown, unloading safety device - Google Patents
Natural gas ball valve blowdown, unloading safety device Download PDFInfo
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- CN214763960U CN214763960U CN202120995921.1U CN202120995921U CN214763960U CN 214763960 U CN214763960 U CN 214763960U CN 202120995921 U CN202120995921 U CN 202120995921U CN 214763960 U CN214763960 U CN 214763960U
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- natural gas
- separation
- safety device
- ball valve
- pressure pipe
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Abstract
The utility model discloses a natural gas ball valve blowdown, unloading safety device, including but the substitution fixer, but mouth and oil and gas separator are connected to the substitution, but install the separation lid in the oil and gas separator, the separation is covered and is provided with the air vent, the separation lid separates oil and gas separator for the first disengagement chamber and the second disengagement chamber of mutual intercommunication, but one side of second disengagement chamber is connected the mouth intercommunication through the air inlet high-pressure pipe and substitution, but the substitution is connected the mouth and is connected fixedly through substitution fixer and valve blowdown mouth, but the opposite side of second disengagement chamber passes through pipeline and blowoff valve intercommunication, but first disengagement chamber passes through exhaust high-pressure pipe and spark arrester intercommunication. The utility model discloses compact structure, the dismouting of being convenient for, but reutilization effectively reduces gaseous impact injury to the operation personnel, and the safety in operation space is guaranteed to the environmental protection.
Description
Technical Field
The utility model relates to a leak test and dimension in the valve in natural gas station and the valve well and protect the field, especially relate to a natural gas ball valve blowdown, unloading safety device.
Background
The natural gas valve well belongs to airtight space, carries out the blowdown of valve in the valve well and during interior hourglass test, has the natural gas emission in the valve well, has the condition of natural gas in the valve well, for the measure that guarantee operation personnel safety was usually taken: firstly, an explosion-proof fan is used for ventilation during operation to reduce the natural gas content in the well; detecting the natural gas content in the well in the whole process, stopping immediately after the content is increased, and withdrawing the valve well; and thirdly, the safety of the operating personnel is ensured by wearing breathing equipment, wearing safety ropes, rescue tripods and the like during operation. Even if various protective measures are taken in the operation process, the operation of the closed space is easy to cause casualties.
When the valve cavity is used for sewage disposal and emptying, the natural gas and the sewage liquid discharged from the valve cavity bring hidden troubles and dangers to operators. Risk one: the discharged natural gas easily reaches the explosion range of the fuel gas; risk two: the toxic and gassy can cause suffocation of operators; risk three: the dirty liquid discharged by the valve pollution discharge nozzle can pollute the working environment.
In order to ensure the operation safety, natural gas is led to a high place to be discharged when the station discharges sewage and performs internal leakage test, so that the impact injury of the gas to operating personnel is reduced; when the valve in the closed space is emptied and the internal leakage test is carried out, the natural gas is reduced or prevented from being discharged in the closed space, the discharged natural gas is led to the outside of the valve well, and the discharged dirty liquid is collected in the container, so that the safety of the operation space is ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a natural gas ball valve blowdown, unloading safety device leaks the problem that has the risk when testing and dimension are protected in the valve in solving natural gas station and the valve shaft, provides a safe operation space for the operation workman.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a natural gas ball valve blowdown, unloading safety device, but connect mouth and oil and gas separator including alternate fixer, alternate, but install the separation lid in the oil and gas separator, the separation is covered and is provided with the air vent, the separation lid will oil and gas separator separates for the first disengagement chamber and the second disengagement chamber of mutual intercommunication, one side of second disengagement chamber through the air inlet high-pressure pipe with alternate connection mouth intercommunication, the alternate is connected the mouth and is passed through alternate fixer is connected fixedly with valve blowdown mouth, the opposite side of second disengagement chamber passes through pipeline and blowoff valve intercommunication, first disengagement chamber passes through exhaust high-pressure pipe and flame arrester intercommunication.
Further, but the substitution fixer includes handle, screw rod, connecting piece and activity kicking block, the handle is connected screw rod upper portion, the upper portion of connecting piece with screw rod threaded connection, the lower part of connecting piece with but substitution connection mouth threaded connection, the activity kicking block is connected the lower part of screw rod, the bottom of activity kicking block with the top of valve blowdown mouth is closely laminated.
Further, the shape of the connecting piece is provided as an arch or a frame.
Further, the replaceable connecting nozzle is a conical connecting nozzle or a convex connecting nozzle; and a sealing ring is arranged at the position where the convex connecting nozzle is connected with the valve sewage draining nozzle.
Furthermore, one end of the air inlet high-pressure pipe is fixed with the lower end of the replaceable connecting nozzle through an air inlet pipe connector, and the other end of the air inlet high-pressure pipe is communicated with an air inlet of the second separation cavity through an air inlet quick connector.
Furthermore, a flange blind plate is arranged at the top end of the first separation cavity, and the separation cover is fixedly connected with the flange blind plate through a fixing rod.
Furthermore, one end of the exhaust high-pressure pipe is communicated with the inlet of the flame arrester through an exhaust pipe joint, and the other end of the exhaust high-pressure pipe is communicated with the air outlet of the first separation cavity through an air outlet quick coupler.
Further, the oil-gas separator is a container formed by welding steel pipes.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model discloses when airtight space valve unloading, blowdown and interior hourglass test, reduce or avoid the natural gas emission in airtight space, send into oil separator with greasy dirt, gas through the high-pressure pipe of admitting air and separate, the exhaust greasy dirt is collected in oil and gas separator, leads exhaust natural gas to the valve well outside through the high-pressure pipe of exhausting, the spark arrester avoids the natural gas spontaneous combustion, reduces the impact injury of gas to the operation personnel, the environmental protection, guarantee the safety of operation space;
the utility model discloses but well alternate form fixer, alternate form connect mouth, various coupling and quick-assembling joint all for the ease of dismouting, still can change according to the use scene of difference.
The utility model discloses compact structure, the dismouting of being convenient for, but reutilization effectively reduces gaseous impact injury to the operation personnel, and the safety in operation space is guaranteed to the environmental protection.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a schematic structural view of the natural gas ball valve blowdown and blowdown safety device of the present invention;
FIG. 2 is a schematic structural view of the frame-shaped holder of the present invention;
FIG. 3 is a schematic structural view of the bow-shaped fastener of the present invention;
FIG. 4 is a schematic structural view of the cone-shaped connection nozzle of the present invention;
FIG. 5 is a schematic structural view of the male connector of the present invention;
description of reference numerals: 1. a replaceable retainer; 101. a handle; 102. a screw; 103. a connecting member; 104. a movable top block; 2. a replaceable connection nozzle; 201. a seal ring; 3. a valve sewage draining nozzle; 4. an oil-gas separator; 401. a separating cover; 402. a vent hole; 403. a flange blind plate; 404. a first separation chamber; 405. a second separation chamber; 406. a blowoff valve; 407. fixing the rod; 5. an air inlet high pressure pipe; 501. an air inlet pipe joint; 502. a quick air inlet joint; 6. an exhaust high pressure pipe; 601. an exhaust pipe joint; 602. an air outlet quick connector; 7. a flame arrester.
Detailed Description
As shown in fig. 1, the natural gas ball valve pollution discharge and emptying safety device comprises a replaceable fixer 1, a replaceable connecting nozzle 2 and an oil-gas separator 4, wherein the oil-gas separator 4 is a container formed by welding DN150 steel pipes, a separation cover 401 is installed in the oil-gas separator 4, a vent hole 402 is formed in the separation cover 401, a flange blind plate 403 is arranged at the top end of a first separation cavity 404, the separation cover 401 is fixedly connected with the flange blind plate 403 through a fixing rod 407, and the separation cover 401 divides the oil-gas separator 4 into a first separation cavity 404 and a second separation cavity 405 which are communicated with each other; one side of the second separation cavity 405 is communicated with the replaceable connecting nozzle 2 through an air inlet high-pressure pipe 5, the replaceable connecting nozzle 2 is fixedly connected with the valve blow-down nozzle 3 through a replaceable fixer 1, and the other side of the second separation cavity 405 is communicated with the blow-down valve 406 through a pipeline; the first separation chamber 404 communicates with the flame arrestor 7 via the exhaust high pressure tube 6.
Specifically, but alternate form fixer 1 includes handle 101, screw rod 102, connecting piece 103 and activity kicking block 104, and handle 101 is connected on screw rod 102, and the upper portion and the screw rod 102 threaded connection of connecting piece 103, the lower part and the alternate form of connecting piece 103 are connected mouth 2 threaded connection, and activity kicking block 104 is connected in the lower part of screw rod 102, and the bottom and the valve blowdown mouth 3 of activity kicking block 104 closely laminate.
Referring to fig. 2 and 3, the connecting member 103 is provided in an arcuate or frame shape.
In the embodiment, the frame-shaped fixer is suitable for ball valve operation with large space of the sewage discharge nozzle, the arch-shaped fixer is suitable for ball valve operation with small space of the sewage discharge nozzle, and the handle 101 is used for screwing the lifting screw 102 to realize the effect of pressing the sewage discharge port on the valve sewage discharge nozzle 3.
Specifically, referring to fig. 4 and 5, the replaceable connection nozzle 2 is a tapered connection nozzle or a convex connection nozzle, and a sealing ring 201 is disposed above the convex connection nozzle and connected to the valve sewage nozzle 3.
The connecting nozzle that links to each other with valve blowdown mouth 3 in this embodiment adopts the tin bronze material, and this material intensity, wearability are strong, and the processability is good, adopts tin bronze not only explosion-proof, can realize valve blowdown mouth 3 effectively sealed moreover, can select the connecting nozzle of different models according to the characteristics of valve blowdown mouth 3.
Specifically, one end of the air inlet high-pressure pipe 5 is fixed to the lower end of the replaceable connection nozzle 2 through an air inlet pipe joint 501, and the other end of the air inlet high-pressure pipe 5 is communicated with an air inlet of the second separation cavity 405 through an air inlet quick-assembly joint 502.
One end of the exhaust high-pressure pipe 6 is communicated with the inlet of the flame arrester 7 through an exhaust pipe joint 601, and the other end of the exhaust high-pressure pipe 6 is communicated with the air outlet of the first separation cavity 404 through an air outlet quick coupler 602.
The working process of the utility model is as follows:
firstly, mounting a replaceable connecting nozzle 2 on a replaceable fixer 1;
connecting the replaceable connecting nozzle 2 with an air inlet on the second separation cavity 405 by using an air inlet high-pressure pipe 5, connecting a flame arrester 7 with an air outlet on the first separation cavity 404 by using an exhaust high-pressure pipe 6, and fixing the exhaust pipe to a safe diffusion area;
thirdly, closing the blowdown valve 406;
fourthly, the replaceable fixer 1 is installed on a drain outlet of the valve and the handle 101 is screwed tightly;
fifthly, screwing off a thimble of the valve pollution discharge nozzle 3, allowing natural gas and dirty liquid to enter a second separation cavity 405 of the oil-gas separator 4 through an air inlet, allowing the dirty liquid to fall to the bottom along the pipe wall of the second separation cavity 405 after collision, allowing the gas to enter a first separation cavity 404 of the oil-gas separator 4 through a vent hole 402 of an oil-gas separation cover 401, discharging the gas to a safe area through an air outlet, an exhaust high-pressure pipe 6 and a flame arrester 7, and allowing the dirty liquid to sink to the bottom of the second separation cavity 405;
and sixthly, after the sewage discharge work is finished, the high-pressure pipe on the oil-gas separator 4 is disassembled, the high-pressure pipe is moved to a safe area to be treated with sewage, the gas in the cavity is replaced by inert gas, and the sewage is discharged.
In the embodiment, when the station is used for pollution discharge and internal leakage test, the natural gas is led to a high place to be discharged, so that the impact injury of the gas to operating personnel is reduced, and the operation safety is guaranteed; when the valve in the closed space is emptied and the internal leakage test is carried out, the natural gas is reduced or avoided being discharged in the closed space, the discharged natural gas is led to the outside of the valve well, and the discharged dirty liquid is collected in the container, so that the safety of the operation space is ensured.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (8)
1. The utility model provides a natural gas ball valve blowdown, unloading safety device which characterized in that: but including alternate form fixer (1), alternate form connection mouth (2) and oil and gas separator (4), install separation lid (401) in oil and gas separator (4), be provided with on separation lid (401) air vent (402), separation lid (401) will oil and gas separator (4) are separated for first separation chamber (404) and second separation chamber (405) of mutual intercommunication, one side of second separation chamber (405) through admit air high-pressure pipe (5) with alternate form connection mouth (2) intercommunication, but alternate form connection mouth (2) pass through alternate form fixer (1) are connected fixedly with valve blowdown mouth (3), the opposite side of second separation chamber (405) passes through pipeline and blowoff valve (406) intercommunication, first separation chamber (404) are through exhaust high-pressure pipe (6) and fire arrestor (7) intercommunication.
2. The natural gas ball valve blowdown, blow down safety device of claim 1, wherein: the replaceable fixer (1) comprises a handle (101), a screw rod (102), a connecting piece (103) and a movable top block (104), wherein the handle (101) is connected to the upper portion of the screw rod (102), the upper portion of the connecting piece (103) is in threaded connection with the screw rod (102), the lower portion of the connecting piece (103) is in threaded connection with the replaceable connecting nozzle (2), the movable top block (104) is connected to the lower portion of the screw rod (102), and the bottom of the movable top block (104) is tightly attached to the top of the valve sewage discharging nozzle (3).
3. A natural gas ball valve blowdown, blow down safety device according to claim 2, wherein: the connecting piece (103) is provided with an arched shape or a frame shape.
4. The natural gas ball valve blowdown, blow down safety device of claim 1, wherein: the replaceable connecting nozzle (2) is a conical connecting nozzle or a convex connecting nozzle; and a sealing ring (201) is arranged at the position where the convex connecting nozzle is connected with the valve sewage discharging nozzle (3).
5. The natural gas ball valve blowdown, blow down safety device of claim 1, wherein: one end of the air inlet high-pressure pipe (5) is fixed with the lower end of the replaceable connecting nozzle (2) through an air inlet pipe joint (501), and the other end of the air inlet high-pressure pipe (5) is communicated with an air inlet of the second separation cavity (405) through an air inlet quick connector (502).
6. The natural gas ball valve blowdown, blow down safety device of claim 1, wherein: the top end of the first separation cavity (404) is provided with a flange blind plate (403), and the separation cover (401) is fixedly connected with the flange blind plate (403) through a fixing rod (407).
7. The natural gas ball valve blowdown, blow down safety device of claim 1, wherein: one end of the exhaust high-pressure pipe (6) is communicated with an inlet of the flame arrester (7) through an exhaust pipe joint (601), and the other end of the exhaust high-pressure pipe (6) is communicated with an air outlet of the first separation cavity (404) through an air outlet quick connector (602).
8. The natural gas ball valve blowdown, blow down safety device of claim 1, wherein: the oil-gas separator (4) is a container formed by welding steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120995921.1U CN214763960U (en) | 2021-05-11 | 2021-05-11 | Natural gas ball valve blowdown, unloading safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120995921.1U CN214763960U (en) | 2021-05-11 | 2021-05-11 | Natural gas ball valve blowdown, unloading safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214763960U true CN214763960U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120995921.1U Active CN214763960U (en) | 2021-05-11 | 2021-05-11 | Natural gas ball valve blowdown, unloading safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214763960U (en) |
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2021
- 2021-05-11 CN CN202120995921.1U patent/CN214763960U/en active Active
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