CN113101750A - Natural gas ball valve blowdown, unloading safety device - Google Patents
Natural gas ball valve blowdown, unloading safety device Download PDFInfo
- Publication number
- CN113101750A CN113101750A CN202110512141.1A CN202110512141A CN113101750A CN 113101750 A CN113101750 A CN 113101750A CN 202110512141 A CN202110512141 A CN 202110512141A CN 113101750 A CN113101750 A CN 113101750A
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- Prior art keywords
- natural gas
- safety device
- ball valve
- replaceable
- nozzle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a natural gas ball valve blowdown and emptying safety device which comprises a replaceable fixer, a replaceable connecting nozzle and an oil-gas separator, wherein a separating cover is arranged in the oil-gas separator, a vent hole is formed in the separating cover, the separating cover divides the oil-gas separator into a first separating cavity and a second separating cavity which are mutually communicated, one side of the second separating cavity is communicated with the replaceable connecting nozzle through an air inlet high-pressure pipe, the replaceable connecting nozzle is fixedly connected with a valve blowdown nozzle through the replaceable fixer, the other side of the second separating cavity is communicated with a blowdown valve through a pipeline, and the first separating cavity is communicated with a flame arrester through an exhaust high-pressure pipe. The invention has compact structure, convenient disassembly and assembly, secondary utilization, effective reduction of impact injury of gas to operators, environmental protection and guarantee of the safety of operation space.
Description
Technical Field
The invention relates to the field of valve internal leakage testing and maintenance in natural gas stations and valve shafts, in particular to a natural gas ball valve pollution discharge and emptying 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.
Disclosure of Invention
The invention aims to provide a natural gas ball valve blowdown and emptying safety device, which solves the problem of risks in valve internal leakage test and maintenance in a natural gas station and a valve well and provides a safe operation space for operation workers.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a natural gas ball valve blowdown and emptying safety device which comprises a replaceable fixer, a replaceable connecting nozzle and an oil-gas separator, wherein a separating cover is installed in the oil-gas separator, a vent hole is formed in the separating cover, the separating cover divides the oil-gas separator into a first separating cavity and a second separating cavity which are mutually communicated, one side of the second separating cavity is communicated with the replaceable connecting nozzle through an air inlet high-pressure pipe, the replaceable connecting nozzle is fixedly connected with a valve blowdown nozzle through the replaceable fixer, the other side of the second separating cavity is communicated with a blowdown valve through a pipeline, and the first separating cavity is communicated with a flame arrester through an exhaust high-pressure pipe.
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 invention has the beneficial technical effects that:
according to the invention, when the valve in the closed space is emptied, the pollution discharge and the internal leakage test are carried out, the natural gas is reduced or avoided being discharged in the closed space, oil stain and gas are sent into the oil-liquid separator for separation through the gas inlet high-pressure pipe, the discharged oil stain is collected in the oil-gas separator, the discharged natural gas is led to the outside of the valve well through the gas outlet high-pressure pipe, the fire arrester avoids the spontaneous combustion of the natural gas, the impact injury of the gas to operating personnel is reduced, the environment is protected, and the safety of the operating space is ensured;
the replaceable fixer, the replaceable connecting nozzle, various pipe joints and the quick connector are convenient to disassemble and assemble and can be replaced according to different use scenes.
The invention has compact structure, convenient disassembly and assembly, secondary utilization, effective reduction of impact injury of gas to operators, environmental protection and guarantee of the safety of operation space.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic structural view of a natural gas ball valve blowdown and blowdown safety device of the present invention;
FIG. 2 is a schematic structural view of a frame-shaped holder according to the present invention;
FIG. 3 is a schematic view of the construction of the arcuate retainer of the present invention;
FIG. 4 is a schematic view of the construction of the tapered connector of the present invention;
FIG. 5 is a schematic view of the male connection nozzle 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 invention 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-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the scope of the present invention is defined by the claims.
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 |
|---|---|---|---|
| CN202110512141.1A CN113101750A (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 |
|---|---|---|---|
| CN202110512141.1A CN113101750A (en) | 2021-05-11 | 2021-05-11 | Natural gas ball valve blowdown, unloading safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113101750A true CN113101750A (en) | 2021-07-13 |
Family
ID=76721691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110512141.1A Withdrawn CN113101750A (en) | 2021-05-11 | 2021-05-11 | Natural gas ball valve blowdown, unloading safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113101750A (en) |
-
2021
- 2021-05-11 CN CN202110512141.1A patent/CN113101750A/en not_active Withdrawn
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Application publication date: 20210713 |
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| WW01 | Invention patent application withdrawn after publication |