CN207073657U - A kind of Gas Stations of multi-purpose ring flange and its composition are vented temporarily and nitrogen injection device - Google Patents
A kind of Gas Stations of multi-purpose ring flange and its composition are vented temporarily and nitrogen injection device Download PDFInfo
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- CN207073657U CN207073657U CN201721090644.XU CN201721090644U CN207073657U CN 207073657 U CN207073657 U CN 207073657U CN 201721090644 U CN201721090644 U CN 201721090644U CN 207073657 U CN207073657 U CN 207073657U
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- ring flange
- aperture
- joint
- vented
- temporarily
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Abstract
The utility model discloses a kind of interim emptying of the Gas Stations of multi-purpose ring flange and its composition and nitrogen injection device, including horizontally disposed ring flange body, its circular hole is run through in the center of the ring flange body provided with about one, the ring flange body is provided with N groups and runs through its aperture up and down, aperture described in every group is equipped with multiple, and it is circumferentially distributed in the surrounding of the circular hole, the N groups aperture is sequentially distributed the surrounding in the circular hole from inside to outside, the equal screw thread of all apertures wherein enclosed by the N 1 of innermost circle aperture to outer ring is provided with plug, the ring flange body lower end is located at the pipe joint that the own perimeter is downwardly extending tubular perpendicular to ring flange body.The utility model is easy to it to be connected with the ring flange of different size, when the aperture of a certain circle is connected with ring flange, aperture on its interior is required to carry out plug-hole using plug, keeps the air-tightness of ring flange by setting multi-turn aperture.
Description
Technical field
A kind of Gas Stations of ring flange and its composition emptying and nitrogen injection device temporarily are the utility model is related to, more particularly to
A kind of ring flange of flange that can match Multiple Type and its interim emptying of the Gas Stations of composition and nitrogen injection device.
Background technology
The commonly used voltage adjusting device of Gas Stations mainly includes pry regulator and personal gas is prized.Pry regulator is mainly adjusted by work
Pressure valve, monitoring pressure regulator valve and safety cut-off valve composition；Safety cut-off valve, monitoring pressure regulator valve, work pressure regulator valve are separate
Equipment.Its main operational principle is：Under normal operating conditions, safety cut-off valve and monitoring pressure regulator valve are in fully open position, by
Work regulating valve is controlled to downstream pressure.When work regulating valve failure, uncontrollable downstream pressure, pressure regulation is monitored
Valve is started working, to maintain the safe range of downstream pressure.If monitoring pressure regulator valve also breaks down, it is impossible to controls downstream pressure
When, safety cut-off valve then automatically cuts off source of the gas.In pry regulator work pressure regulator valve downstream there is provided impulse tube bank, one is installed on the pipe
Ball valve is blocked, is easy to be vented on the spot when pry regulator safety cut-off valve, the site pressure setting of monitoring pressure regulator valve.Equally, use by oneself
Gas prizes one-level pressure regulation and the composition and operation principle of second voltage regulation are identical with pry regulator, and in the downstream of personal gas sled one-level pressure regulation
Blowdown emptying device on the spot also is provided with, is easy to be vented on the spot when safety cut-off valve, the site pressure setting of monitoring pressure regulator valve.
Because the natural gas of gas transmission station place conveying belongs to inflammable and explosive medium, natural gas vent is into air, when its is dense
When degree reaches explosion limit (5%-15%), running into burning things which may cause a fire disaster will be exploded, therefore natural gas is discharged on the spot, be existed larger
Potential safety hazard.To ensure safety, safety cut-off valve, monitoring pressure regulator valve typically to voltage-regulating system carry out emptying amount during pressure setting
Seldom or static voltage adjustment is carried out without emptying, but the operating mode of static voltage adjustment and actual motion differs greatly, pressure regulation essence
Degree is inaccurate.
In addition, Gas Stations are put in reorganization and expansion and daily checking maintenance, it is necessary to carry out nitrogen to the maintenance pipeline section after emptying
Change, nitrogen displacement to overhaul after concentration of natural gas is qualified less than 0.5% in pipeline section, can carry out getting angry etc. and upkeep operation or beat
Open pipe section.Nitrogen displacement note nitrogen point is typically chosen in pressure gauge or pressure transmitter root or one smaller diameter valve of dismounting is carried out
Nitrogen is noted, but if selecting the former to note nitrogen, because root valve is needle-valve, causes note nitrogen speed slower；If the latter is selected, due to tearing open
The valve flanges size unloaded is different, causes nitrogen injection device inconvenience to be connected with note nitrogen point.Simultaneously as maintenance pipeline section is often present
Cecum so that repeatedly note nitrogen could replace qualified after building the pressure, and delay the repair time, and extend to stop the supple of gas or steam to door station user and recover to supply again
The time of gas.
Utility model content
In order to solve the above-mentioned technical problem, one of the purpose of this utility model is to provide a kind of sizes that adapt to
The ring flange of flange.
To achieve the above object, the technical solution of the utility model is：A kind of multi-purpose ring flange, including horizontally disposed method
Its circular hole is run through in blue disk body, the center of the ring flange body provided with about one, and the ring flange body is provided with group
Run through its aperture up and down, aperture described in every group is equipped with surroundings that are multiple, and being circumferentially distributed in the circular hole, and N groups are described small
Hole is sequentially distributed the surrounding in the circular hole from inside to outside, wherein all apertures enclosed by the N-1 of innermost circle aperture to outer ring
Locate equal screw thread and plug is installed, the ring flange body lower end is located at the own perimeter and extended downwardly perpendicular to ring flange body
Form the pipe joint of tubular.
The beneficial effect of above-mentioned technical proposal is：Multi-turn aperture is set, is easy to it to be connected with the ring flange of different size,
When the aperture of a certain circle is connected with ring flange, aperture on its interior is required to carry out plug-hole using plug, keeps flange
The air-tightness of disk.
Plug described in above-mentioned technical proposal is a screw, and its end of thread is engaged with the internal thread of the aperture, and
The length of its end of thread is less than or equal to the depth of aperture.
The beneficial effect of above-mentioned technical proposal is：The air-tightness of plug is kept, while is not influenceed also between ring flange
It is connected with each other.
Ring flange body described in above-mentioned technical proposal is circle, and the N is ＞ 1 natural number, and the N is 3 or 4.
The beneficial effect of above-mentioned technical proposal is：So that the number of turns of aperture is set rationally.
The two of the purpose of this utility model are that providing a kind of natural gas transmission yard that is used for is vented and notes temporarily the two of nitrogen
Use device.
To achieve these goals, the technical solution of the utility model is a kind of emptying temporarily of Gas Stations and note nitrogen dress
Put, including multiple multi-purpose as described above ring flange, two switching devices and a straight coupling, two switching devices
Wherein one end is connected and connected with blowdown piping and nitrogen injection device by a multi-purpose ring flange respectively, two switching devices
The other end respectively by use the emptying block valve of ring flange and the upstream of the straight coupling and natural-gas transfer pipeline with
And the emptying ring flange in downstream is connected and connected.
The beneficial effect of above-mentioned technical proposal is, by switching device by natural gas transportation pipeline at cecum with
Blowdown piping is connected and connected so that the natural gas in natural gas transportation pipeline quickly drains clearly net and replaces qualified, contracts significantly
Short time swap.
In above-mentioned technical proposal, two switching devices include threeway, pressure gauge and high-pressure hose, the multi-purpose flange
The pipe joint of disk is connected and connected with any one interface of threeway, two interfaces of remainder of the threeway respectively with pressure gauge
Connect and connect with one end of the high-pressure hose of two switching devices, the high-pressure hose of one of them switching device
The other end is connected and connected by the downstream emptying ring flange of multi-purpose ring flange and natural-gas transfer pipeline；Another described switching
The other end of the high-pressure hose of device is connected and connected by the emptying block valve of straight coupling and the upstream of natural-gas transfer pipeline
It is logical.
The beneficial effect of above-mentioned technical proposal is, by setting threeway to be easily installed the whole emptying of pressure gauge monitoring in real time
With the pressure in note nitrogen loop.
The both ends of high-pressure hose described in above-mentioned technical proposal are mounted on joint, and described joint one end is located at gas passage
Side wall be provided with internal thread, be interference fitted in other end insertion high-pressure hose and with high-pressure hose, one of them described joint with
Corresponding threeway connect and connect, the corresponding multi-purpose ring flange of another described joint or straight coupling connection are simultaneously
Connection.
The beneficial effect of above-mentioned technical proposal is, facilitates the connection of high-pressure hose using joint.
Nitrogen device is stored up described in above-mentioned technical proposal as storage nitrogen bottle.
The beneficial effect of above-mentioned technical proposal is, stores up nitrogen bottle convenience in transport.
Straight coupling described in above-mentioned technical proposal is cylindrical tubular structure, and its both ends is equipped with external screw thread, and described
Straight coupling distinguishes corresponding joint and the screw thread installation of emptying block valve.
The beneficial effect of above-mentioned technical proposal is, simple in construction, and good leak tightness.
Brief description of the drawings
Fig. 1 is the sectional view that ring flange is used described in the utility model embodiment；
Fig. 2 is the top view that ring flange is used described in the utility model embodiment；
Fig. 3 is the connection sketch of switching device described in the utility model embodiment；
Fig. 4 is the connection sketch of switching device described in the utility model embodiment；
Fig. 5 is the structure diagram of Gas Stations emptying and nitrogen injection device described in the utility model embodiment.
In figure：1 multi-purpose ring flange, 11 ring flange bodies, 12 apertures, 13 plugs, 14 pipe joints, 21 threeways, 22 pressure
Table, 23 high-pressure hoses, 24 joints, 3 straight couplings, 4 storage nitrogen devices, 5 natural gas transportation pipelines, 51 emptying ring flanges, 52 emptying
Block valve, 6 blowdown pipings.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
Embodiment 1
As depicted in figs. 1 and 2, a kind of multi-purpose ring flange, including horizontally disposed ring flange body are present embodiments provided
11, its circular hole is run through in the center of the ring flange body 11 provided with about one, and the ring flange body 11 is provided with group
Run through its aperture 12 down, aperture 12 is equipped with multiple described in every group, and is circumferentially distributed in the surrounding of the circular hole, described in N groups
Aperture 12 is sequentially distributed the surrounding in the circular hole from inside to outside, wherein the institute enclosed by the N-1 of innermost circle aperture 12 to outer ring
There is equal screw thread at aperture 12 that plug 13 is installed, the lower end of ring flange body 11 is located at the own perimeter perpendicular to ring flange
Body 11 is downwardly extending the pipe joint 14 of tubular.
Plug 13 described in above-described embodiment is a screw, and its end of thread is engaged with the internal thread of the aperture 12,
And the length of its end of thread is less than or equal to the depth of aperture 12.
Ring flange body 11 described in above-described embodiment is circle, and the N is ＞ 1 natural number.
Preferably, N described in above-described embodiment is 3 or 4.
When a certain circle aperture of multi-purpose ring flange is connected with the ring flange docked, the inner ring aperture positioned at the circle aperture is equal
It is provided with plug to block aperture, prevents the leakage of natural gas gas.
Wherein, the aperture of preferable two groups of adjacent apertures is distribution straggly, i.e. the apertures of adjacent two layers intersects point
Cloth.
Embodiment 2
As seen in figures 3-5, present embodiments provide a kind of Gas Stations temporarily emptying and nitrogen injection device, including it is multiple such as
1, two switching device 2 of multi-purpose ring flange and a straight coupling 3 described in embodiment 1, one end of two switching devices 2
Be connected and connect by a multi-purpose ring flange 1 and blowdown piping 6 and storage nitrogen device 4 respectively, two switching devices 2 it is another
One end passes through the emptying block valve 52 and downstream of multi-purpose ring flange 1 and straight coupling 6 with the upstream of natural-gas transfer pipeline 5 respectively
Emptying ring flange 51 connect and connect.
Switching device 2 described in the present embodiment includes threeway 21, pressure gauge 22 and high-pressure hose 23, the multi-purpose ring flange
1 pipe joint 14 is connected and connected with any one interface of threeway 21, two interfaces of remainder of the threeway 21 respectively with
Pressure gauge 22 is connected and connected with one end of the high-pressure hose 23 of two switching devices 2, one of switching device 2
The other end of high-pressure hose 23 is connected and connected by the downstream emptying ring flange 51 of multi-purpose ring flange 1 and natural-gas transfer pipeline 5
It is logical；The other end of the high-pressure hose 23 of another switching device 2 passes through the upstream of straight coupling 3 and natural-gas transfer pipeline 5
Emptying block valve 52 is connected and connected.
The both ends of high-pressure hose 23 described in the present embodiment are mounted on joint 24, and the both ends of joint 24, which are run through, is provided with gas
Body passage, the side wall that its one end is located at gas passage are provided with internal thread, and the other end inserts in high-pressure hose 23 and and high-pressure hose
23 interference fits, the end of thread of one of them joint 24 distinguish corresponding threeway 21 and connect and connect, another
The end of thread of joint 24 distinguishes corresponding multi-purpose ring flange 1 or straight coupling 3 and connects and connect.
Nitrogen device 4 is stored up described in the present embodiment as storage nitrogen bottle.
Straight coupling 3 described in the present embodiment is cylindrical tubular structure, and its both ends is equipped with external screw thread, and described straight-through
Joint 3 distinguishes corresponding joint 24 and the screw thread installation of emptying block valve 52.
The principle of the present embodiment is by toward injecting nitrogen in natural-gas transfer pipeline and by the natural gas in pipeline through nitrogen
Gas displacement is clean, is easy to maintain pipeline.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (9)
1. a kind of multi-purpose ring flange, it is characterised in that including horizontally disposed ring flange body (11), the ring flange body
(11) its circular hole is run through in center provided with about one, and the ring flange body (11) is provided with N groups up and down through the small of its
Hole (12), aperture (12) described in every group are equipped with surroundings that are multiple, and being circumferentially distributed in the circular hole, the N groups aperture (12)
The surrounding in the circular hole is sequentially distributed from inside to outside, wherein being enclosed by the N-1 of innermost circle aperture (12) to outer ring all small
The equal screw thread in hole (12) place is provided with plug (13), and ring flange body (11) lower end is located at the own perimeter perpendicular to flange
Disk body (11) is downwardly extending the pipe joint (14) of tubular.
2. multi-purpose ring flange according to claim 1, it is characterised in that the plug (13) is screw.
3. multi-purpose ring flange according to claim 1, it is characterised in that the ring flange body (11) is circular, and institute
State the natural number that N is ＞ 1.
4. multi-purpose ring flange according to claim 3, it is characterised in that the N is 3 or 4.
5. a kind of Gas Stations are vented temporarily and nitrogen injection device, it is characterised in that including multiple such as any one of claim 1-4
Described multi-purpose ring flange (1), two switching devices (2) and a straight coupling (3), two switching devices (2) its
Middle one end is connected and connected with blowdown piping (6) and storage nitrogen device (4) by a multi-purpose ring flange (1) respectively, described in two
The other end of switching device (2) passes through multi-purpose ring flange (1) and the straight coupling (6) and natural-gas transfer pipeline (5) respectively
Upstream emptying block valve (52) and downstream emptying ring flange (51) connect and connect.
6. Gas Stations according to claim 5 are vented temporarily and nitrogen injection device, it is characterised in that the switching device
(2) threeway (21), pressure gauge (22) and high-pressure hose (23), the pipe joint (14) and three of the multi-purpose ring flange (1) are included
Any one interface of logical (21) is connected and connected, two interfaces of remainder of the threeway (21) respectively with pressure gauge (22) and two
One end of the high-pressure hose (23) of the individual switching device (2) connects and connected, the high pressure of one of them switching device (2)
The other end of flexible pipe (23) is connected by using ring flange (1) with the downstream emptying ring flange (51) of natural-gas transfer pipeline (5)
And connect；The other end of the high-pressure hose (23) of another switching device (2) passes through straight coupling (3) and natural gas transportation
The emptying block valve (52) of the upstream of pipeline (5) is connected and connected.
7. Gas Stations according to claim 6 are vented temporarily and nitrogen injection device, it is characterised in that the high-pressure hose
(23) both ends are mounted on joint (24), in joint (24) one end insertion high-pressure hose (23) and with high-pressure hose (23)
Interference fit, one of them corresponding threeway of the joint (24) (21) are connected and connected, another described joint
(24) connect and connect with corresponding multi-purpose ring flange (1) or straight coupling (3).
8. Gas Stations according to claim 7 are vented temporarily and nitrogen injection device, it is characterised in that the storage nitrogen device
(4) it is storage nitrogen bottle.
9. Gas Stations according to claim 7 are vented temporarily and nitrogen injection device, it is characterised in that the straight coupling
(3) it is cylindrical tubular structure, its both ends is equipped with external screw thread, and the joint that the straight coupling (3) difference is corresponding
(24) installed with emptying block valve (52) screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090644.XU CN207073657U (en) | 2017-08-29 | 2017-08-29 | A kind of Gas Stations of multi-purpose ring flange and its composition are vented temporarily and nitrogen injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090644.XU CN207073657U (en) | 2017-08-29 | 2017-08-29 | A kind of Gas Stations of multi-purpose ring flange and its composition are vented temporarily and nitrogen injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207073657U true CN207073657U (en) | 2018-03-06 |
Family
ID=61521194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721090644.XU Active CN207073657U (en) | 2017-08-29 | 2017-08-29 | A kind of Gas Stations of multi-purpose ring flange and its composition are vented temporarily and nitrogen injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207073657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014194A (en) * | 2019-11-29 | 2020-04-17 | 安徽金昊天塑胶科技发展有限公司 | Plastic pipeline sweeps mechanism |
| CN114043172A (en) * | 2021-11-12 | 2022-02-15 | 保定市立中车轮制造有限公司 | Commercial vehicle hub machining process |
-
2017
- 2017-08-29 CN CN201721090644.XU patent/CN207073657U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014194A (en) * | 2019-11-29 | 2020-04-17 | 安徽金昊天塑胶科技发展有限公司 | Plastic pipeline sweeps mechanism |
| CN114043172A (en) * | 2021-11-12 | 2022-02-15 | 保定市立中车轮制造有限公司 | Commercial vehicle hub machining process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200914 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: SINOPEC CHUANQI DONGSONG NATURAL GAS PIPELINE Co.,Ltd. Patentee after: China Petroleum & Chemical Corp. Address before: 430223 Hubei Wuhan City, Wuhan City, East Lake New Technology Development Zone Optics Valley Avenue No. 126 Sichuan Gas East pipeline project, the 1-5 layer of the Wuhan control center Patentee before: SINOPEC CHUANQI DONGSONG NATURAL GAS PIPELINE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sichuan East Natural Gas Pipeline Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: SINOPEC CHUANQI DONGSONG NATURAL GAS PIPELINE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211105 Address after: Room 08-10, 6 / F, block a, No. 5, Dongtucheng Road, Chaoyang District, Beijing 100013 Patentee after: National Petroleum and natural gas pipeline network Group Co.,Ltd. Patentee after: Sichuan East Natural Gas Pipeline Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: Sichuan East Natural Gas Pipeline Co.,Ltd. |