CN108869821A - Pressure relief device for oil field pressure medium - Google Patents
Pressure relief device for oil field pressure medium Download PDFInfo
- Publication number
- CN108869821A CN108869821A CN201810968913.0A CN201810968913A CN108869821A CN 108869821 A CN108869821 A CN 108869821A CN 201810968913 A CN201810968913 A CN 201810968913A CN 108869821 A CN108869821 A CN 108869821A
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- pressure
- safety valve
- threaded hole
- plug
- pipeline
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- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000008676 import Effects 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 241000233855 Orchidaceae Species 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000004397 blinking Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000004087 circulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
- B01D35/046—Plug, tap, or cock filters filtering elements mounted in or on a faucet the filtering element being mounted in the faucet plug
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of pressure relief devices for oil field pressure medium, including relief pipeline and the safety valve being connected on the relief pipeline, it further include the filter being mounted on safety valve input end, the filter includes plate ring annular in shape and is fixed in the strainer on plate ring, and the strainer is in net bag-shaped；The safety valve is connected by connecting flange with relief pipeline, and installation of the filter on safety valve input end is held between connecting flange by plate ring and is realized.The structure of this pressure relief device design so that safety valve for medium for example petroleum when, be conducive to the pressure relief capability for ensureing safety valve.
Description
Technical field
The present invention relates to oil equipment technical fields, fill more particularly to a kind of pressure release for oil field pressure medium
It sets.
Background technique
Safety valve is that opening and closing element is lower in normally off by external force (generally spring force) effect, when in equipment or pipeline
When pressure medium is increased more than specified value, the normally off of safety valve is converted to open state, passes through the discharge medium to outside system
It is more than specified value to prevent in pipeline or equipment pressure medium, is mainly used for boiler, on pressure vessels and pipes, in production
Important safeguard protection pipe fitting.
It is more and more in the items of equipment engineering with pressure management with the fast development of economic construction of China, in view of
The needs of equipment pressure release, safety valve play the role of vital, steam boiler, liquefied petroleum gas vapour in protection device procedures
Recessing vehicle or liquefied petroleum gas railway tanker, producing well, the high pressure turbine by of steam generating equipment, pressure pipeline, pressure vessel etc.
On have extensive utilization.
In petroleum industry, safety valve is also widely used, and safety valve is answered extensively with the rapid development of science and technology
With oil equipment safety valve has also obtained technological improvement, and such as application No. is the technical sides that 201720953851.7 invention provides
Case provides a kind of safety valve with triggering alarm function, can reach the warning close danger of personnel nearby, improves safety valve peace
The purpose of overall coefficient.
Advanced optimize in the prior art safety valve in the utilization of field of petroleum machinery, be those skilled in the art institute urgently
The technical issues of solution.
Summary of the invention
It, in the utilization of field of petroleum machinery, is this field for the safety valve in the prior art that advanced optimizes set forth above
The problem of technical staff's technical problem urgently to be resolved, the present invention provides a kind of pressure releases for oil field pressure medium
Device, the structure of this pressure relief device design so that safety valve for medium for example petroleum when, be conducive to the pressure release for ensureing safety valve
Ability.
The technological means of this programme is as follows, for the pressure relief device of oil field pressure medium, including relief pipeline and company
The safety valve being connected on the relief pipeline, further includes the filter being mounted on safety valve input end, and the filter includes
It plate ring annular in shape and is fixed in the strainer on plate ring, the strainer is in net bag-shaped；
The safety valve is connected by connecting flange with relief pipeline, and peace of the filter on safety valve input end
Dress is held between connecting flange by plate ring to be realized.
In the present solution, the relief pipeline is connected with the pipeline of transfer oil or mechanical equipment, for passing through safety thereon
Valve limits the maximum pressure of corresponding pressure system to protect the operational safety of pressure system.
Petroleum media is different from other fluids, due to wherein adulterating just like impurity such as cinder, stones, therefore in the prior art,
Safety valve front end for the protection of petroleum media pressure system is typically provided with filter, to avoid the above impurity effect safety valve
Spool returns seat playback or above impurity high speed flows through spool and causes to scratch to spool.
In the prior art, the strainer on filter is typically provided to the plane reticular being tauted.In the present solution, passing through setting
Be the strainer be in net bag-shaped, compared to the prior art in be in plane reticular strainer, can get bigger filter area, it is above
Bigger filter area after strainer is locally blocked, may make strainer still and have enough or bigger negotiabilities with
Enable safety valve complete within the shorter time pressure release or within the regular hour have bigger pressure relief capability in favor of
The overvoltage protection of pressure system.
As those skilled in the art, realize that the pipe fitting of connection includes two pieces of connection methods in connecting flange position by flange
Orchid, therefore in the present solution, being set as strainer is held in the installation that strainer is realized between connecting flange by plate ring thereon, in need
When cleaning strainer or carrying out safe valve core clean and maintenance, it is only necessary to filter can be completed by this by dismantling connection flange
It is removed on device and safety valve in the present apparatus by removing, is i.e. the cleaning of strainer synchronous can be carried out with the maintenance of safety valve, in this way
It can reach the purpose for improving present apparatus easy to maintain.
Preferably, being set as the strainer is stainless steel material, and strainer is integrally in semicircle spherical shape or semielliptical, filter
The open end of net connects with for the plate boxing of stainless steel.Using this programme, may make strainer integrally has certain rigidity, to pacify
In the full valve course of work or safety valve returns when sitting, and the fluid flow by flowing through filter occurs sharply to change or wear by fluid
The introduced vibration of filter screen forces the impurity being enriched on strainer and is detached from because of shake with strainer, to optimize the fluid of strainer
Negotiability.
Further technical solution is：
The quantity of the safety valve is two, and two safety valves pass through pipeline section and are connected with relief pipeline, two safety valves
Relativeness be in parallel relationship；
It is in series with block valve on pipeline between two safety valves and relief pipeline, between the connecting flange of each safety valve
It is clamped with filter.In above scheme, being set as the safety valve is two, and when in use, may be configured as any time only makes
With one of safety valve, while in the safety valve upper filter Severe blockage used or because on corresponding safe valve core
When having impurity effect spool to return seat and lead to safety valve escape, block valve corresponding with the safety valve is closed, it will corresponding filter
Or/and safety valve unload after cleaned, in above procedure, switch to another safety valve to pressure system carry out over-voltage guarantor
Shield is installed after corresponding safety valve cleaning to spare on relief pipeline.Using this programme, continue work in pressure system
During work, can effectively avoid filter service or safety valve maintenance causes pressure system overvoltage protection to be in cycle in time.
The safety valve includes safe valve body, and the safe valve body includes import pipeline section, outlet pipe section and setting
Spool between import pipeline section and outlet pipe section further includes pressure sensor, and the pressure sensor is connected to import pipeline section
On, and the pressure sensor is used to monitor the pressure in import pipeline section in fluid flow passageway, further includes believing for output light
Number warning device, the signal output end of the pressure sensor is connected on the signal input part of warning device, pressure sensing
The control signal that the output result of device works as warning device.In the prior art, safety valve especially exists in take-off pressure release
The biggish use occasion of pressure in the biggish use occasion of nominal diameter and import pipeline section end pipe road or equipment, often with prominent
The loud noise of hair and there is a large amount of fluid to spray.In the prior art, in view of the above-mentioned problems, safety valve generally needs during installation
Specific outlet pipe section outlet end direction is set, also there is the technical side using the outlet pipe section end joint noise reduction device in safety valve
Case.But after above-mentioned processing, burst loud noise, the fluid ejected can be rapid when still remaining safety valve pressure release work
Leading to the problem of burst to circumferential passages influences, in view of the above-mentioned problems, in the prior art, occur such as application No. is
Pressure is passed to pressure inductor by spring using the program by the technical solution that 201720953851.7 invention provides
It is interior, alarm acoustical generator is then acted on by pressure inductor and carries out alarm sounds.
However, in the prior art, since the movement of spring and the pressure release movement of safety valve are synchronization action, therefore the above safety
When valve scheme is not easy to the early warning of output pressure rising in advance, i.e. acoustical generator early warning, safety valve is inherently in pressure release opening state.
In the present solution, pressure above sensor is for monitoring in import pipeline section by being set as including pressure sensor
Fluid pressure, in this way, before import pipeline section internal pressure power rises to safety valve jumping up pressure, warning device, that is, exportable alarm signal
Number with to surrounding people carry out early warning, with prompt surrounding people will generate safety valve jumping up noise and prompt surrounding people i.e.
There to be pressure medium release, i.e., using this programme capable of emitting warning before safety valve pressure release triggering, so that near safety valve
There are personnel more times far from safety valve or to carry out psychological preparation.
In the present solution, the warning device that the warning device is output optical signal is set as, in this way, when intrinsic safety full valve is used for
It is such as blinking light by the optical signal of output when environment full of noise, aloowing safety valve, nearby personnel are clear
Safety valve is obtained i.e. for take-off signal.Preferably, it is multiple for being set as warning device, and warning device passes through with pressure sensor
Wireless signals connection, in this way, when specifically used multiple warning devices can be installed in the peripheral region of safety valve, and report
Alarm device is circular layout around safety valve, so that this programme realizes that warning range is bigger and makes the equal energy of the pedestrian of different directions
Enough obtain intuitive alarm signal.
In the prior art, since the valve body material of valve mostly uses cast iron materials, to make pressure sensor and inlet tube
Section has more structurally sound switching performance, facilitates aperture so that pressure sensor is at the space communicated with import pipeline section
Interior and make after connecting pressure sensor, the import pipeline section material near pressure sensor still is able to meet mechanical property
It is required that being set as：Pressure sensor is connected on the connecting flange.Using this programme, it can be used and drilled on connecting flange
The through-hole in outside in it is penetrated through, pressure sensor is embedded in the through-hole.
As connection type that is a kind of detachable and being easy to implement, the pressure sensor is by being arranged on connecting flange
Threaded hole be threadedly coupled with connecting flange.
In the prior art, safety valve is typically mounted at the top of container or pipeline, the medium in corresponding container or pipeline
When for liquid medium, it is to reduce the chance of liquid medium and pressure sensor contacts to protect pressure sensor, is set as：It is described
Threaded hole is angling hole, and the one end of threaded hole on the inside of import pipeline section is the lower end of threaded hole.
As a kind of specific pressure sensor form and the connection type of specific pressure sensor and connecting flange, if
It is set to：The pressure sensor includes cylindrical plug, is provided with external screw thread on the plug, in described plug one end
Centre is provided with Hexagon hole, and holding tank is additionally provided on the plugged end where Hexagon hole, pressure is provided in the holding tank
Power inductive component；
The pressure sensitive component includes the sensing chip for piezoelectric material, and promising sealing is also wrapped up in the outside of the sensing chip
The clad of insulating materials further includes the cable being electrically connected with the sensing chip；
Fairlead is additionally provided on the plug, the cable is drawn by the fairlead by the other end of plug；
The threaded hole is in that the step with a step surface is poroid, and threaded hole is close to one end of connecting flange axis
The one end being relatively large in diameter, the internal screw thread on threaded hole are arranged on one end that threaded hole is relatively large in diameter；
The plug is threadedly coupled with threaded hole, and axis of the one end close to connecting flange of Hexagon hole is provided on plug
Line is additionally provided with sealing ring between the step surface on plug and threaded hole.Above scheme in the preparation, to make the threaded hole
Facilitate processing, an isometrical through-hole can be drilled on connecting flange first, then uses a cylindrical material, and internal thread hole is added
Cylindrical material is then embedded in after the isometrical through-hole on the cylindrical material and realizes cylindrical material and company using girth joint by work
The anti-leak of acting flange connects.In above scheme, the Hexagon hole of setting facilitates installation personnel to use allen wrench for plug
Apply torque, so that sealing ring obtains enough deformations to seal the gap between end and threaded hole, the clad of setting
The operating condition of safety valve should be adapted to, such as considers corresponding medium temperature, media type, such as using rubber as clad sealing sense
Piece is answered to can be used for 200 DEG C of fluid lines below.Using above scheme, not only avoids sensing chip and directly connect with corresponding medium
Touching, while realizing the insulation between sensing chip and plug.
The invention has the advantages that：
In the present solution, by being set as the strainer in net bag-shaped, compared to the prior art in be in plane reticular strainer,
It can get bigger filter area, the above bigger filter area may make strainer still to have after strainer is locally blocked
Enough or bigger negotiabilities are so that safety valve can complete within the shorter time pressure release or in the regular hour
It is interior to have bigger pressure relief capability in favor of the overvoltage protection of pressure system.
As those skilled in the art, realize that the pipe fitting of connection includes two pieces of connection methods in connecting flange position by flange
Orchid, therefore in the present solution, being set as strainer is held in the installation that strainer is realized between connecting flange by plate ring thereon, in need
When cleaning strainer or carrying out safe valve core clean and maintenance, it is only necessary to filter can be completed by this by dismantling connection flange
It is removed on device and safety valve in the present apparatus by removing, is i.e. the cleaning of strainer synchronous can be carried out with the maintenance of safety valve, in this way
It can reach the purpose for improving present apparatus easy to maintain.
Detailed description of the invention
Fig. 1 is safety in pressure relief device one specific embodiment of the present invention for oil field pressure medium
The schematic perspective view of valve；
Fig. 2 is reflection in pressure relief device one specific embodiment of the present invention for oil field pressure medium
The cross-sectional view of pressure sensor structure and pressure sensor and connecting flange connection relationship；
Fig. 3 is the partial enlarged view in the portion A shown in Fig. 2；
Fig. 4 is that the structure of pressure relief device one specific embodiment of the present invention for oil field pressure medium is shown
It is intended to；
Fig. 5 is filtering in pressure relief device one specific embodiment of the present invention for oil field pressure medium
The structural schematic diagram of device.
Appended drawing reference in figure is respectively：1, outlet pipe section, 2, import pipeline section, 3, pressure sensor, 31, plug, 32, close
Seal, 33, clad, 34, sensing chip, 35, Hexagon hole, 36, cable, 4, connecting flange, 41, threaded hole, 5, relief pipeline,
6, filter, 7, strainer, 8, safety valve, 9, plate ring, 10, block valve.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, but structure of the invention be not limited only to it is following
Embodiment.
Embodiment 1：
As shown in Figures 1 to 5, the pressure relief device for oil field pressure medium, including relief pipeline 5 and it is connected to institute
The safety valve 8 on relief pipeline 5 is stated, further includes the filter 6 being mounted on 8 input end of safety valve, the filter 6 includes being in
It cricoid plate ring 9 and is fixed in the strainer 7 on plate ring 9, the strainer 7 is in net bag-shaped；
The safety valve 8 is connected by connecting flange 4 with relief pipeline 5, and the filter 6 is in 8 input end of safety valve
On installation be held between connecting flange 4 and realize by plate ring 9.
In the present solution, the relief pipeline 5 is connected with the pipeline of transfer oil or mechanical equipment, for passing through safety thereon
Valve 8 limits the maximum pressure of corresponding pressure system to protect the operational safety of pressure system.
Petroleum media is different from other fluids, due to wherein adulterating just like impurity such as cinder, stones, therefore in the prior art,
8 front end of safety valve for the protection of petroleum media pressure system is typically provided with filter 6, to avoid the above impurity effect safety
8 spool of valve returns seat playback or above impurity high speed flows through spool and causes to scratch to spool.
In the prior art, the strainer 7 on filter 6 is typically provided to the plane reticular being tauted.In the present solution, by setting
The strainer 7 is set in net bag-shaped, compared to the prior art in be in plane reticular strainer 7, can get bigger filter area,
After bigger filter area is blocked in 7 part of strainer above, it may make strainer 7 that still there is enough or bigger circulations
Ability is so that safety valve 8 can complete pressure release within the shorter time or have bigger pressure relief capability within the regular hour
In favor of the overvoltage protection of pressure system.
As those skilled in the art, realize that the pipe fitting of connection includes two pieces in 4 position of connecting flange and connects by flange
Flange 4, therefore in the present solution, being set as strainer 7 is held in the peace that strainer 7 is realized between connecting flange 4 by plate ring 9 thereon
Dress, when needing to clean strainer 7 or carrying out 8 spool clean and maintenance of safety valve, it is only necessary to can be completed by dismantling connection flange 4
By removing in the present apparatus, i.e. the cleaning of strainer 7 and the maintenance of safety valve 8 can by removal and safety valve 8 in the present apparatus for filter 6
It is synchronous to carry out, it can reach the purpose for improving present apparatus easy to maintain in this way.
Preferably, being set as the strainer 7 is stainless steel material, and strainer 7 is whole in semicircle is spherical or semielliptical,
It is welded with for the plate ring 9 of stainless steel the open end of strainer 7.Using this programme, it may make strainer 7 that integrally there is certain rigidity,
With in 8 course of work of safety valve or when safety valve 8 returns seat, the fluid flow by flowing through filter 6 occur sharply to change or
Passing through the introduced vibration of strainer 7 by fluid forces the impurity being enriched on strainer 7 because of shake and strainer 7 are detached from, with
Optimize the fluid negotiability of strainer 7.
Embodiment 2：
As shown in Figures 1 to 5, the present embodiment is further qualified on the basis of embodiment 1：
The quantity of the safety valve 8 is two, and two safety valves 8 are connected by pipeline section with relief pipeline 5, two safety
The relativeness of valve 8 is in parallel relationship；
Block valve 10, the connecting flange 4 of each safety valve 8 are in series on pipeline between two safety valves 8 and relief pipeline 5
Between be clamped with filter 6.In above scheme, being set as the safety valve 8 is two, when in use, be may be configured as any
One of safety valve 8 is used only in moment, while in 8 upper filter of safety valve, 6 Severe blockage used or because corresponding to
When thering is impurity effect spool to return seat on 8 spool of safety valve and safety valve 8 being caused to leak, truncation corresponding with the safety valve 8 is closed
Valve 10 cleans after unloading corresponding filter 6 or/and safety valve 8, in above procedure, it is right to switch to another safety valve 8
Pressure system carries out overvoltage protection, installs after corresponding safety valve 8 cleans to spare on relief pipeline 5.Using this
Scheme, during pressure system continues working, can effectively avoid the maintenance of filter 6 or the maintenance of safety valve 8 causes pressure system
Overvoltage protection is in cycle in time.
The safety valve 8 includes safe valve body, and the safe valve body includes import pipeline section 2, outlet pipe section 1 and sets
Set the spool between import pipeline section 2 and outlet pipe section 1, further include pressure sensor 3, the pressure sensor 3 be connected into
On mouth pipeline section 2, and the pressure sensor 3 is used to monitor the pressure in import pipeline section 2 in fluid flow passageway, further includes being used for
The signal output end of the warning device of output optical signal, the pressure sensor 3 is connected on the signal input part of warning device,
The control signal that the output result of pressure sensor 3 works as warning device.In the prior art, safety valve 8 is in take-off pressure release
When, the especially biggish use occasion of pressure in the biggish use occasion of nominal diameter and 2 end pipe road of import pipeline section or equipment,
Often with the loud noise of burst and there is a large amount of fluid to spray.In the prior art, in view of the above-mentioned problems, safety valve 8
The specific 1 outlet end direction of outlet pipe section of setting is generally required during installation, is also had using at 1 end of outlet pipe section of safety valve 8
The technical solution of joint noise reduction device.But after above-mentioned processing, the loud noise that happens suddenly when still remaining 8 pressure release of safety valve work,
The fluid ejected, which can lead to the problem of burst to circumferential passages rapidly, to be influenced, in view of the above-mentioned problems, in the prior art, occurring
The technical solution such as provided application No. is 201720953851.7 invention using the program is conveyed pressure by spring
Into pressure inductor, alarm acoustical generator is then acted on by pressure inductor and carries out alarm sounds.
However, in the prior art, since the movement of spring and the pressure release movement of safety valve 8 are synchronization action, therefore the above peace
When 8 scheme of full valve is not easy to the early warning of output pressure rising in advance, i.e. acoustical generator early warning, safety valve 8 is inherently opened in pressure release
State.
In the present solution, pressure above sensor 3 is for monitoring in import pipeline section 2 by being set as including pressure sensor 3
Fluid pressure, in this way, pressure rises to before 8 release pressure of safety valve in import pipeline section 2, warning device, that is, exportable report
Alert signal is to carry out early warning to surrounding people, to prompt surrounding people that will generate around 8 take-off noise of safety valve and prompt
Personnel will have pressure medium release, i.e., using this programme capable of emitting warning before 8 pressure release of safety valve triggering, so that safety
Nearby there are personnel valve 8 more times far from safety valve 8 or to carry out psychological preparation.
In the present solution, the warning device that the warning device is output optical signal is set as, in this way, when intrinsic safety full valve 8 is used
It is such as blinking light by the optical signal of output when being full of the environment of noise, aloowing safety valve 8, nearby personnel are clear
Clear acquisition safety valve 8 is i.e. by take-off signal.Preferably, being set as warning device is multiple, and warning device and pressure sensor 3
It is connected by wireless signals, in this way, multiple warning devices can be installed in the peripheral region of safety valve 8 when specifically used,
And warning device is circular layout around safety valve 8, so that this programme realization warning range is bigger and makes the row of different directions
Intuitive alarm signal can be obtained per capita.
In the prior art, since the valve body material of valve mostly uses cast iron materials, to make pressure sensor 3 and inlet tube
Section 2 with more structurally sound switching performance, facilitate aperture so that pressure sensor 3 is at and communicates with import pipeline section 2
In space and make after connecting pressure sensor 3,2 material of import pipeline section near pressure sensor 3 still is able to meet
Mechanical property requirements are set as：Pressure sensor 3 is connected on the connecting flange 4.Using this programme, it can be used and connecting
The through-hole in its interior outside of perforation is drilled on flange 4, pressure sensor 3 is embedded in the through-hole.
As connection type that is a kind of detachable and being easy to implement, the pressure sensor 3 is by being arranged in connecting flange 4
On threaded hole 41 be threadedly coupled with connecting flange 4.
In the prior art, safety valve 8 is typically mounted at the top of container or pipeline, the medium in corresponding container or pipeline
When for liquid medium, to reduce chance that liquid medium is contacted with pressure sensor 3 to protect pressure sensor 3, it is set as：Institute
Stating threaded hole 41 is angling hole, and the one end of threaded hole 41 on the inside of import pipeline section 2 is the lower end of threaded hole 41.
As a kind of specific 3 form of pressure sensor and the connection side of specific pressure sensor 3 and connecting flange 4
Formula is set as：The pressure sensor 3 includes cylindrical plug 31, and external screw thread is provided on the plug 31, described stifled
The center of first 31 one end is provided with Hexagon hole 35, is additionally provided with holding tank on 31 end of plug where Hexagon hole 35, institute
It states and is provided with pressure sensitive component in holding tank；
The pressure sensitive component includes the sensing chip 34 for piezoelectric material, and the outside of the sensing chip 34 is also wrapped up promising
The clad 33 of sealed insulating material further includes the cable 36 being electrically connected with the sensing chip 34；
Fairlead is additionally provided on the plug 31, the cable 36 is drawn by the fairlead by the other end of plug 31
Out；
The threaded hole 41 is in that the step with a step surface is poroid, and threaded hole 41 is close to 4 axis of connecting flange
One end is the one end being relatively large in diameter, and the internal screw thread on threaded hole 41 is arranged on one end that threaded hole 41 is relatively large in diameter；
The plug 31 is threadedly coupled with threaded hole 41, and one end of Hexagon hole 35 is provided on plug 31 close to connection method
The axis of orchid 4 is additionally provided with sealing ring 32 between the step surface on plug 31 and threaded hole 41.Above scheme in the preparation, is
So that the threaded hole 41 facilitates processing, an isometrical through-hole can be drilled on connecting flange 4 first, then uses a cylinder material
Material, and internal thread hole 41 is machined on the cylindrical material, then cylindrical material is embedded in after the isometrical through-hole using ring
Weld seam realizes that cylindrical material is connect with the anti-leak of connecting flange 4.In above scheme, the Hexagon hole 35 of setting facilitates installation people
Member uses allen wrench to apply torque for plug 31, so that sealing ring 32 obtains enough deformations to seal end and screw thread
Gap between hole 41, the clad 33 of setting should adapt to the operating condition of safety valve 8, such as consider corresponding medium temperature, medium class
Type etc. such as can be used for 200 DEG C of fluid lines below as 33 sealing sensing chip 34 of clad using rubber.It uses with top
Case not only avoids sensing chip 34 and corresponding physical contact between media, while realizing the insulation between sensing chip 34 and plug 31.
The above content is combine specific preferred embodiment to the further description of the invention made, and it cannot be said that originally
The specific embodiment of invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs,
The other embodiments obtained in the case where not departing from technical solution of the present invention should be included in the protection scope of corresponding invention.
Claims (7)
1. being used for the pressure relief device of oil field pressure medium, including relief pipeline (5) and it is connected on the relief pipeline (5)
Safety valve (8), further include the filter (6) being mounted on safety valve (8) input end, the filter (6) includes annular in shape
Plate ring (9) and be fixed in the strainer (7) on plate ring (9), which is characterized in that the strainer (7) be in net bag-shaped；
The safety valve (8) is connected by connecting flange (4) with relief pipeline (5), and the filter (6) is in safety valve (8)
Installation on input end is held between connecting flange (4) by plate ring (9) to be realized.
2. the pressure relief device according to claim 1 for oil field pressure medium, which is characterized in that the safety valve
(8) quantity is two, and two safety valves (8) are connected with relief pipeline (5) by pipeline section, two safety valves (8) it is opposite
Relationship is in parallel relationship；
It is in series on pipeline between two safety valves (8) and relief pipeline (5) block valve (10), the connection of each safety valve (8)
Filter (6) are clamped between flange (4).
3. the pressure relief device according to claim 1 for oil field pressure medium, which is characterized in that the safety valve
It (8) include safe valve body, the safe valve body includes import pipeline section (2), outlet pipe section (1) and is arranged in import pipeline section
(2) spool between outlet pipe section (1) further includes pressure sensor (3), and the pressure sensor (3) is connected to inlet tube
In section (2), and the pressure sensor (3) is used to monitor the pressure in import pipeline section (2) interior fluid flow passageway, further includes using
In the warning device of output optical signal, the signal output end of the pressure sensor (3) is connected to the signal input of warning device
On end, control signal that the output result of pressure sensor (3) works as warning device.
4. the pressure relief device according to claim 3 for oil field pressure medium, which is characterized in that pressure sensor
(3) it is connected on the connecting flange (4).
5. the pressure relief device according to claim 4 for oil field pressure medium, which is characterized in that the pressure passes
Sensor (3) is threadedly coupled by the threaded hole (41) being arranged on connecting flange (4) with connecting flange (4).
6. the pressure relief device according to claim 5 for oil field pressure medium, which is characterized in that the threaded hole
It (41) is angling hole, the one end of threaded hole (41) on the inside of import pipeline section (2) is the lower end of threaded hole (41).
7. the pressure relief device according to claim 5 for oil field pressure medium, which is characterized in that the pressure passes
Sensor (3) includes cylindrical plug (31), is provided with external screw thread on the plug (31), in described plug (31) one end
Centre is provided with Hexagon hole (35), is additionally provided with holding tank, the receiving on plug (31) end where Hexagon hole (35)
Pressure sensitive component is provided in slot；
The pressure sensitive component includes the sensing chip (34) for piezoelectric material, and the outside of the sensing chip (34) is also wrapped up promising
The clad (33) of sealed insulating material further includes the cable (36) being electrically connected with the sensing chip (34)；
Fairlead is additionally provided on the plug (31), the cable (36) is by the fairlead by the other end of plug (31)
It draws；
The threaded hole (41) is in that the step with a step surface is poroid, and threaded hole (41) is close to connecting flange (4) axis
One end be the one end being relatively large in diameter, internal screw thread on threaded hole (41) is arranged on one end that threaded hole (41) is relatively large in diameter；
The plug (31) is threadedly coupled with threaded hole (41), and one end of Hexagon hole (35) is provided on plug (31) close to even
The axis of acting flange (4) is additionally provided with sealing ring (32) between the step surface on plug (31) and threaded hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968913.0A CN108869821A (en) | 2018-08-23 | 2018-08-23 | Pressure relief device for oil field pressure medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968913.0A CN108869821A (en) | 2018-08-23 | 2018-08-23 | Pressure relief device for oil field pressure medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869821A true CN108869821A (en) | 2018-11-23 |
Family
ID=64321657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810968913.0A Withdrawn CN108869821A (en) | 2018-08-23 | 2018-08-23 | Pressure relief device for oil field pressure medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869821A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113209743A (en) * | 2021-04-14 | 2021-08-06 | 成都润封电碳有限公司 | Self-explosion filtering device and method arranged in front of safety valve of curing tank |
| CN114790877A (en) * | 2022-06-15 | 2022-07-26 | 李奇伟 | Be applied to pressure build-up prevention device of production tree |
-
2018
- 2018-08-23 CN CN201810968913.0A patent/CN108869821A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113209743A (en) * | 2021-04-14 | 2021-08-06 | 成都润封电碳有限公司 | Self-explosion filtering device and method arranged in front of safety valve of curing tank |
| CN114790877A (en) * | 2022-06-15 | 2022-07-26 | 李奇伟 | Be applied to pressure build-up prevention device of production tree |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181123 |
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| WW01 | Invention patent application withdrawn after publication |