CN107631047A - Gas pipeline fracture blast self-closing valve - Google Patents
Gas pipeline fracture blast self-closing valve Download PDFInfo
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- CN107631047A CN107631047A CN201711094971.7A CN201711094971A CN107631047A CN 107631047 A CN107631047 A CN 107631047A CN 201711094971 A CN201711094971 A CN 201711094971A CN 107631047 A CN107631047 A CN 107631047A
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- housing
- shaped piston
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- gas
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Abstract
The technical scheme of gas pipeline fracture blast self-closing valve,Including housing,Input port and delivery outlet are formed with housing exterior walls,Input port and delivery outlet connect input pipe and efferent duct respectively,The lower section connection downtake of the junction of input pipe and input port leads to the lower air admission hole of lower housing portion,The top connection epithelium healing of the junction of efferent duct and delivery outlet leads to the enterprising stomata of housing upper,I-shaped piston and cylinder are set in housing,I-shaped piston includes upper plate,Lower plate and connecting rod,Cylinder inner cylinder liner top is fixedly connected with case top inwall,Steam vent is set in case top with being communicated in inner cylinder liner,Spring is set in inner cylinder liner,Cylinder seal circle is set in inner cylinder liner bottom outer wall,Cylinder seal circle contacts with outer cylinder sheath inwall,Outer cylinder sheath bottom is fixedly connected with I-shaped piston upper plate,I-shaped piston upper plate and lower plate set upper piston seal circle and lower piston sealing ring respectively,On,Lower piston sealing ring is engaged with inner walls.
Description
Technical field
The present invention relates to gas pipeline to be broken blast self-closing valve.
Background technology
General gas flow pipeline（Such as liquefied gas etc.）Solenoid valve control is all used, solenoid valve control needs power-supply device and sensing
Device etc. is arranged in house, and how distant the distance of each magnetic valve installation is, will if magnetic valve is burnt out in a fire
It is out of control, make that the gas loss in pipeline is big, and gas stream is scattered in air, because there is power supply, be easy for that fire occurs, cause to put out a fire
It is difficult.
The content of the invention
The shortcomings that the invention aims to overcome prior art to exist, there is provided a kind of mechanical structure, using pipeline certainly
The pressure difference of body gas, air inlet pipeline section and outlet pipeline section block automatically, cut off the gas pipeline fracture blast self-closing valve of gas circuit.
The technical scheme of gas pipeline fracture blast self-closing valve of the present invention, including housing, are formed with housing exterior walls
Input port and delivery outlet, input port and delivery outlet connect input pipe and efferent duct respectively, in the junction of input pipe and input port
Lower section connection downtake, downtake connect lower housing portion lower air admission hole, in the top of efferent duct and the junction of delivery outlet
Epithelium healing is connected, epithelium healing connects the enterprising stomata of housing upper, I-shaped piston, described I-shaped work are set in housing
Plug includes upper plate, lower plate and connecting rod, and cylinder is set in the top of housing, and described cylinder includes inner cylinder liner and outer cylinder sheath,
The top of inner cylinder liner is fixedly connected with case top inwall, sets steam vent, steam vent and phase in inner cylinder liner on top of the housing
It is logical, spring is set in inner cylinder liner, cylinder seal circle, cylinder seal circle and outer cylinder sheath inwall are set in the bottom outer wall of inner cylinder liner
Contact, the bottom of outer cylinder sheath are fixedly connected with the upper plate of I-shaped piston, and the upper plate and lower plate of I-shaped piston are set respectively
Piston packing and lower piston sealing ring, upper and lower piston packing are engaged with inner walls, on described housing bottom inwall
Shock-proof block is set, and the lower plate of I-shaped piston contacts with shock-proof block.
The invention discloses a kind of gas pipeline to be broken blast self-closing valve, the self-closing valve installation of the technical program
On gas pipeline, the housing of self-closing valve has an input port and delivery outlet, input port and delivery outlet connect respectively input pipe and
Efferent duct, downtake being connected in the lower section of the junction of input pipe and input port, downtake connects the lower air admission hole of lower housing portion,
The concrete structure of described downtake connecting tube, lower connecting tube can be used to connect input pipe and input under housing exterior walls setting
The junction of mouth and the lower air admission hole of lower housing portion, epithelium healing, upper gas are connected in the top of efferent duct and the junction of delivery outlet
Road connects the enterprising stomata of housing upper, and the concrete structure of described epithelium healing can set connecting tube in the outer wall of housing,
Upper connecting tube is used for junction and the enterprising stomata of housing upper for connecting efferent duct and delivery outlet, is set in housing I-shaped
Piston, described I-shaped piston include upper plate, lower plate and connecting rod, cylinder, described cylinder are set in the top of housing
Including inner cylinder liner and outer cylinder sheath, the top of inner cylinder liner is fixedly connected with case top inwall, sets steam vent on top of the housing,
For steam vent with being communicated in inner cylinder liner, steam vent is used for air pressure discharge caused by internal, outer cylinder sheath motion, or is sucked during negative pressure empty
Gas, make the inner cylinder liner and outer cylinder sheath normal work of cylinder, spring is set in inner cylinder liner, gas is set in the bottom outer wall of inner cylinder liner
Cylinder sealing ring, cylinder seal circle contact with outer cylinder sheath inwall, there is cylinder seal circle, make the gas in housing will not be from cylinder
Leaked at cooperation, the bottom of outer cylinder sheath is fixedly connected with the upper plate of I-shaped piston, upper plate and the lower plate difference of I-shaped piston
Upper piston seal circle and lower piston sealing ring, upper and lower piston packing is set to be engaged with inner walls, described housing bottom
Shock-proof block is set on inwall, and the lower plate of I-shaped piston is in contact with shock-proof block, there is shock-proof block, I-shaped piston slide downward
Contacted with shock-proof block, reduce vibrations（Collision）, I-shaped piston is shielded.During work, gas enters shell from input pipe
In vivo, the bottom that is flow to through lower air admission hole in housing of downtake, the I-shaped piston of gas push, by I-shaped piston are flowed into and
Pushing up, drive the outer cylinder sheath upward sliding on I-shaped piston, the spring in inner cylinder liner is compressed, until I-shaped piston
The bottom surface of upper plate is slided on delivery outlet, the gas in valve is flowed out from delivery outlet, and flows into epithelium healing through upper air
Hole flows into the top of housing, and now, the gas flowed into from input pipe enters housing, and flows into housing from downtake through lower air admission hole
Bottom, from housing outflow gas from delivery outlet flow out and through epithelium healing through enterprising stomata flow into housing top, due to shell
The area on body top is occupied by cylinder, so the gas pressure of housing upper is plus under the pressure and housing of cylinder inner spring
The gas pressure in portion keeps balance, makes I-shaped piston held stationary state, make cavity outside I-shaped piston brace rod with it is defeated
Entrance and delivery outlet keep an aeration status.When the gas pressure of input pipe loses（Such as fracture or blast occur for pipe
When）, the gas pressure of lower housing portion loses, the gas pressure of housing upper and the opening force of cylinder inner spring make I-shaped piston to
Glide, the lower plate of I-shaped piston contacts with the shock-proof block of the bottom of housing, and the upper plate of I-shaped piston cuts off delivery outlet, makes
Gas in efferent duct is not lost in；When the gas pressure of efferent duct loses（Such as pipe is when being broken）, housing upper
Gas pressure loses, and the gas pressure of lower housing portion is more than the pressure of cylinder inner spring, and spring is compressed, make I-shaped piston to
Upper cunning, the upper plate of I-shaped piston contact with the bottom of cylinder inner cylinder liner, and the lower plate of I-shaped piston cuts off input port, makes defeated
The gas entered in pipe is not lost in.The self-closing valve of the technical program can be used in various gas pipelines（Particularly liquefied gas pipeline）
In, any one segment pipe between two self-closing valves goes wrong（Such as it is broken）, the both ends of the pipeline that goes wrong by
This self-closing valve is closed automatically, cuts off gas circuit, avoids that gas leakage occurs, and because this self-closing valve is mechanical structure, is utilized
The pressure difference of pipeline itself gas, air inlet pipeline section and outlet pipeline section block automatically, gas circuit are cut off, without power supply, first, in power-off
In the case of, energy normal work, second, in gas leakage（A few gases are revealed because of pipeline break）In the case of reduce occur fire,
Two subsidiary risks such as blast, can fast and effectively repair problematic pipeline in the short time.
Gas pipeline fracture blast self-closing valve of the present invention, described housing upper set manually-operated gate, manually-operated gate
Connection recovers air flue, recovers the input pipe that the lower end connection of air flue connects with input port.After efferent duct fracture restoration, hand is opened
Movable valve, the recovered air flue of gas of input pipe is flowed into housing upper, increase the pressure of housing internal upper part, make housing upper
Gas pressure and the pressure of cylinder inner spring promote I-shaped piston downward, the gas pressure of housing upper is plus bullet in cylinder
The pressure of spring and the gas pressure of lower housing portion keep balancing, and I-shaped piston is returned to plateau, make self-closing valve
I-shaped piston brace rod outside cavity and input port and delivery outlet keep an aeration status, then close manually-operated gate；
After input pipe fracture restoration, manually-operated gate is opened, the recovered air flue of gas of efferent duct is flowed into lower housing portion, increases shell
The pressure of internal bottom, the gas pressure of bottom promotes I-shaped piston upward in housing, the gas pressure and shell of lower housing portion
The gas pressure on body top keeps balance plus the pressure of cylinder inner spring, I-shaped piston is returned to plateau, makes certainly
Cavity outside the I-shaped piston brace rod of dynamic shutoff valve keeps an aeration status with input port and delivery outlet, then closes hand
Movable valve.
Brief description of the drawings
Fig. 1 is gas pipeline fracture blast self-closing valve normal operating conditions schematic diagram of the present invention；
Fig. 2 is gas pipeline fracture blast self-closing valve cut-out input port of the present invention, the gas in efferent duct is not lost in shape
State schematic diagram；
Fig. 3 is gas pipeline fracture blast self-closing valve cut-out delivery outlet of the present invention, the gas in input pipe is not lost in shape
State schematic diagram.
Embodiment
The present invention relates to a kind of gas pipeline to be broken blast self-closing valve, as shown in Fig. 1-Fig. 3, the technical program
Self-closing valve is arranged on gas pipeline, and the housing of self-closing valve has input port 2 and delivery outlet 3, input port 2 and delivery outlet
3 connect input pipe 4 and efferent duct 5 respectively, and downtake 6, downtake 6 are connected in the lower section of input pipe 4 with the junction of input port 2
Connect the lower air admission hole 7 of lower housing portion, the concrete structure of described downtake can under housing exterior walls setting connecting tube, lower company
The junction for connecting input pipe and input port and the lower air admission hole of lower housing portion are taken over, in the company of efferent duct 5 and delivery outlet 3
The top connection epithelium healing 8 at place is connect, epithelium healing 8 connects the enterprising stomata 9 of housing upper, and the concrete structure of described epithelium healing can
With the connecting tube in the setting of the outer wall of housing, upper connecting tube is used for junction and the housing upper for connecting efferent duct and delivery outlet
Enterprising stomata, I-shaped piston is set in housing 1, described I-shaped piston includes upper plate 21, lower plate 22 and connecting rod 10,
Cylinder is set in the top of housing 1, and described cylinder includes inner cylinder liner 13 and outer cylinder sheath 14, the top of inner cylinder liner 13 and housing
Top inner wall is fixedly connected, and sets steam vent 15 on top of the housing, with being communicated in inner cylinder liner 13, steam vent is used for steam vent 15
Internally, air pressure discharge caused by outer cylinder sheath motion, or air is sucked during negative pressure, make the inner cylinder liner of cylinder and the normal work of outer cylinder sheath
Make, spring 16 be set in the inner cylinder liner 13, cylinder seal circle 17 is set in the bottom outer wall of inner cylinder liner 13, cylinder seal circle 17 with
The inwall of outer cylinder sheath 14 contacts, and has cylinder seal circle 17, the gas in housing is not leaked at the cooperation of cylinder, outer cylinder sheath
14 bottom is fixedly connected with the upper plate 21 of I-shaped piston, and the upper plate 21 and lower plate 22 of I-shaped piston set upper piston respectively
Sealing ring 11 and lower piston sealing ring 12, upper and lower piston packing 11,12 are engaged with inner walls, described housing bottom
Shock-proof block 18 is set on inwall, the lower plate 22 of I-shaped piston is in contact with shock-proof block 18, there is a shock-proof block, I-shaped piston to
Lower slider contacts with shock-proof block, reduces vibrations（Collision）, I-shaped piston is shielded.During work, gas is from input pipe 4
Into in housing, and flow into the bottom that downtake 6 is flow in housing through lower air admission hole 7, the I-shaped piston of gas push, by work
Font piston pushes up, and drives the upward sliding of outer cylinder sheath 14 on I-shaped piston, and the spring 16 in inner cylinder liner 13 is compressed, directly
Slided into the bottom surface of the upper plate 21 of I-shaped piston on delivery outlet 3, the gas in valve is flowed out from delivery outlet 3, and
The top that epithelium healing 8 flows into housing through enterprising stomata 9 is flowed into, now, the gas flowed into from input pipe 4 enters housing, and under
Air flue 6 flows into the bottom of housing through lower air admission hole 7, is flowed out from the gas of housing outflow from delivery outlet 3 and through epithelium healing 8 through enterprising
Stomata 9 flows into the top of housing, because the area of housing upper is occupied by cylinder, so the gas pressure of housing upper adds
The pressure of upper cylinder inner spring and the gas pressure of lower housing portion keep balancing, and make I-shaped piston held stationary state, make work
Cavity 23 outside font piston brace rod 10 keeps an aeration status with input port 2 and delivery outlet 3.When the gas of input pipe 4
When pressure loses（Such as fracture or explosion time occur for pipe）, the gas pressure of lower housing portion loses, the gas pressure of housing upper
Power and the opening force of cylinder inner spring make I-shaped piston to downslide, the lower plate 22 of I-shaped piston and the shock-proof block of the bottom of housing
18 contacts, the upper plate 21 of I-shaped piston cut off delivery outlet 3, the gas in efferent duct 5 is not lost in；When the gas of efferent duct 5
When body pressure loses（Such as pipe is when being broken）, the gas pressure of housing upper loses, and the gas pressure of lower housing portion is big
In the pressure of cylinder inner spring 16, spring 16 is compressed, slides up I-shaped piston, the upper plate 21 and cylinder of I-shaped piston
The bottom contact of inner cylinder liner 13, the lower plate 22 of I-shaped piston cut off input port 2, the gas in input pipe 3 is not lost in.This
The self-closing valve of technical scheme can be used in various gas pipelines（Particularly liquefied gas pipeline）In, two self-closing valves it
Between any one segment pipe go wrong（Such as it is broken）, the both ends for the pipeline that goes wrong are closed automatically by this self-closing valve,
Gas circuit is cut off, avoids that gas leakage occurs, because this self-closing valve is mechanical structure, using the pressure difference of pipeline itself gas, enters
Tracheae section and outlet pipeline section block automatically, cut off gas circuit, without power supply, when in the event of a power failure, energy normal work, second,
In gas leakage（A few gases are revealed because of pipeline break）In the case of reduce fire, two subsidiary risks such as blast, Ke Yi occur
Problematic pipeline is fast and effectively repaired in short time.Described housing upper sets manually-operated gate 19, and manually-operated gate 19 connects
Connect and recover air flue 20, recover the input pipe 3 that the lower end connection of air flue 20 connects with input port 2.After efferent duct fracture restoration, open
Manually-operated gate is opened, the recovered air flue of gas of input pipe is flowed into housing upper, increases the pressure of housing internal upper part, make housing
The gas pressure on top and the I-shaped piston of pressure promotion of cylinder inner spring are downward, and the gas pressure of housing upper adds cylinder
The pressure of inner spring and the gas pressure of lower housing portion keep balancing, and I-shaped piston is returned to plateau, make to close automatically
Cavity outside the I-shaped piston brace rod of valve closing keeps an aeration status with input port and delivery outlet, then closes hand-operated valve
Door；After input pipe fracture restoration, manually-operated gate is opened, the recovered air flue of gas of efferent duct is flowed into lower housing portion, increases
The pressure of bottom in shell adding body, the gas pressure of bottom promotes I-shaped piston upward in housing, the gas pressure of lower housing portion
Keep balancing plus the pressure of cylinder inner spring with the gas pressure of housing upper, I-shaped piston is returned to plateau,
The cavity outside the I-shaped piston brace rod of self-closing valve is kept an aeration status with input port and delivery outlet, then close
Close manually-operated gate.
Claims (2)
1. gas pipeline fracture blast self-closing valve, it is characterised in that including housing（1）, in housing（1）It is formed with outer wall defeated
Entrance（2）And delivery outlet（4）, input port（2）And delivery outlet（4）Input pipe is connected respectively（3）And efferent duct（5）, in input pipe
（3）With input port（2）Junction lower section connection downtake（6）, downtake（6）Connect the lower air admission hole of lower housing portion（7）,
In efferent duct（5）With delivery outlet（4）Junction top connection epithelium healing（8）, epithelium healing（8）Connect the enterprising of housing upper
Stomata（9）, I-shaped piston is set in housing, and described I-shaped piston includes upper plate（21）, lower plate（22）And connecting rod
（10）, in housing（1）Top in cylinder is set, described cylinder includes inner cylinder liner（13）And outer cylinder sheath（14）, inner cylinder liner
（13）Top be fixedly connected with case top inwall, steam vent is set on top of the housing（15）, steam vent（15）With inner casing
Set（13）Inside communicate, in inner cylinder liner（13）Interior setting spring（16）, inner cylinder liner（13）Bottom outer wall on set cylinder seal circle
（17）, cylinder seal circle（17）With outer cylinder sheath（14）Inwall contacts, outer cylinder sheath（14）Bottom and I-shaped piston upper plate
（21）It is fixedly connected, the upper plate of I-shaped piston（21）And lower plate（22）Upper piston seal circle is set respectively（11）It is close with lower piston
Seal（12）, upper and lower piston packing（11、12）With housing（1）Inwall is engaged, and is set on described housing bottom inwall anti-
Shake block（18）, the lower plate of I-shaped piston（22）With shock-proof block（18）Contact.
2. gas pipeline fracture blast self-closing valve as claimed in claim 1, it is characterised in that described housing upper is set
Put manually-operated gate（19）, manually-operated gate（19）Connection recovers air flue（20）, the lower end for recovering air flue connects what is connected with input port
Input pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711094971.7A CN107631047A (en) | 2017-11-09 | 2017-11-09 | Gas pipeline fracture blast self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711094971.7A CN107631047A (en) | 2017-11-09 | 2017-11-09 | Gas pipeline fracture blast self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107631047A true CN107631047A (en) | 2018-01-26 |
Family
ID=61108154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711094971.7A Withdrawn CN107631047A (en) | 2017-11-09 | 2017-11-09 | Gas pipeline fracture blast self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107631047A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440015A (en) * | 2019-08-09 | 2019-11-12 | 启东市金猴除尘成套设备有限公司 | A kind of pulse valve |
| CN117823464A (en) * | 2024-03-05 | 2024-04-05 | 盐城海纳汽车零部件有限公司 | Oil return mechanism of oil inlet and outlet balance type electric control water pump |
-
2017
- 2017-11-09 CN CN201711094971.7A patent/CN107631047A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440015A (en) * | 2019-08-09 | 2019-11-12 | 启东市金猴除尘成套设备有限公司 | A kind of pulse valve |
| CN117823464A (en) * | 2024-03-05 | 2024-04-05 | 盐城海纳汽车零部件有限公司 | Oil return mechanism of oil inlet and outlet balance type electric control water pump |
| CN117823464B (en) * | 2024-03-05 | 2024-05-14 | 盐城海纳汽车零部件有限公司 | Oil return mechanism of oil inlet and outlet balance type electric control water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180126 |
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| WW01 | Invention patent application withdrawn after publication |