CN106499889A - A kind of perforate flange and the safety valve pressure pilot system based on perforate flange - Google Patents
A kind of perforate flange and the safety valve pressure pilot system based on perforate flange Download PDFInfo
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- CN106499889A CN106499889A CN201611203103.3A CN201611203103A CN106499889A CN 106499889 A CN106499889 A CN 106499889A CN 201611203103 A CN201611203103 A CN 201611203103A CN 106499889 A CN106499889 A CN 106499889A
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- Prior art keywords
- safety valve
- flange
- ring flange
- valve
- pressure
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Classifications
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/006—Attachments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of perforate flange and the safety valve pressure pilot system based on perforate flange, a kind of perforate flange includes ring flange, the duct with ring flange concentric co-axial is offered at ring flange center axle, offers external hole, external hole and hole link on the side wall of ring flange.Present invention utilizes flange easy to disassemble, install advantage, extend the service life of safety valve pressure pilot system, pressurized equipment is connected with the pipe-line system in safety valve pressure pilot system by ring flange and carries out safety valve detection and enable that pressurized equipment is repetitious to be dismantled, install, realize to the timing maintenance of pressurized equipment, cleaning in safety valve pressure pilot system, installation cost is also reduced, mounting process is simplified；The installation of compression system in a kind of safety valve pressure pilot system based on perforate flange of the present invention, dismounting do not interfere with the air-tightness of safety valve detecting system, and the testing result of safety valve pressure pilot system is accurate.
Description
Technical field
The present invention relates to safety valve field, and in particular to a kind of perforate flange and the safety valve pressure based on perforate flange are tried
Check system.
Background technology
It is lower in normally off by external force effect that safety valve is opening and closing element, when the pressure medium in equipment or pipeline rise superb
When crossing setting, exceed the particular usage valve of specified value by pressure medium in pipeline or equipment is prevented to discharge medium outside system
Door；When pressure medium value is higher than setting, safety valve can be automatically turned on, unnecessary medium of releasing, and make interior drops, work as internal pressure
After value is down to specified value, safety valve is automatically switched off, stopping of releasing.Safety valve belongs to automatic valve class, is mainly used in boiler, pressure
On container and pipeline, control pressure has run important protective effect less than setting to personal safety and equipment.Note safety valve
Have to pass through pressure test to use.
When providing additonal pressure to the medium inside pipeline, it is necessary to assure pressurized equipment is fully sealed with pipeline, therefore, mesh
Front often pressurized equipment is connected on pipeline, pressurized equipment be welded on pipeline be not easy to pressurized equipment dismounting, maintenance, once plus
Pressure equipment is leaked, then pipeline can also be leaked, and changes pipeline equivalent to whole equipment is changed, and increased medium transport
The maintenance cost of equipment；Pressurized equipment can not carry out dismounting is repeated several times, and on the one hand can shorten the service life of pressurized equipment,
On the one hand air-tightness, the bearing strength in medium delivery pipe road can be weakened, the economic loss that all factory, enterprise can be caused huge is high
Pressure leakage can also cause serious personal injury.
Content of the invention
The technical problem to be solved is that pressurized equipment is repeated several times dismounting, installs, meeting in safety valve detection
Shorten the service life of safety valve pressure pilot system, it is therefore intended that provide a kind of perforate flange and the safety based on perforate flange
Valve pressure pilot system, solves how to play, in safety valve is detected and tested, the advantage that flange is easy to disassemble, install, increases safety
The problem of the service life of valve pressure pilot system.
The present invention is achieved through the following technical solutions：
A kind of perforate flange, including ring flange, offers the duct with ring flange concentric co-axial, institute at ring flange center axle
State and on the side wall of ring flange, offer external hole, external hole and hole link.
Ring flange of the present invention with external hole is used for the peace in the fields such as industrial gas oil, chemical engineering industry, power plant
Full valve detection check；Safety valve Cleaning Principle is：External pressure is applied to safety valve by pressurized equipment, so as to get safety valve is located
In pipe-line system, pressure value reaches the set-pressure value of safety valve, by judging that safety valve is have unlatching sentencing under set-pressure
Whether disconnected safety valve is qualified；In the present invention, ring flange is in the pipe-line system for connect pressurized equipment and detector for safety valve
Between equipment, pressurized equipment connected by the external hole with ring flange and is passed through adscititious gases to the duct of ring flange, ring flange
Duct is connected with the pipe-line system of detector for safety valve, and therefore adscititious gases can pass sequentially through ring flange, pipe-line system and reach
Safety valve, and then safety valve is detected；In the present invention, ring flange can directly be installed at Jie of safety valve pressure pilot system
On matter pipeline system, it is not necessary to when using, directly dismantle, installation, convenient disassembly, the multiple of ring flange is pacified repeatedly
Dress, dismounting can't affect the air-tightness of whole detecting system so as to increased the service life of safety valve pressure pilot system,
Detection data on the contrary than pressurized equipment on pipeline is accurate, and in the flow process of medium conveying, the installation of ring flange,
Dismounting all will not produce impact to the conveying equipment of medium, after safety valve detection, convey the conveying equipment in flow process according to medium
To choose whether to dismantle ring flange.
The ring flange be through type ring flange, offer through hole on the through type ring flange, the through hole with described
Duct is equal to.In the present invention, ring flange adopts through type ring flange, it is adaptable to which, in safety valve pressure pilot system, safety valve sets
The situation of safety valve root valve is equipped with, safety valve root is sent out has good air-tightness, in safety valve detection, directly will be described straight-through
Formula ring flange be arranged between safety valve and safety valve root valve, then by pressurized equipment be connected on through type ring flange with external
Hole connection can carry out pressurization detection to safety valve；The present invention, need not be stopped production when safety valve is detected from through type ring flange,
After safety valve detection, safety valve can be dismantled, it is also possible to do not dismantle, through type ring flange is easy for installation, detection data is accurate.
The ring flange is blind plate, and the center of blind plate offers blind hole, and the bottom of blind hole is in closed state, the blind hole
It is equal to duct.The present invention is using offering the blind plate of external hole as pressurized equipment and the centre of safety valve pressure pilot system
Connection equipment, it is adaptable to which safety valve lower end is fitted without the situation of safety valve root valve, in safety valve pressure pilot system, does not have
Safety valve root valve is installed, air-tightness is bad；It is the circulation passage of gas-pressurized in the blind hole of blind plate, and the bottom of blind hole is closing
, with good air-tightness, therefore, gas-pressurized directly can reach safety valve by blind hole and safety valve detected；This
Invention is detected from blind plate, in detection, needs to stop production；After having detected, need to disassemble blind plate, the dismounting of blind plate,
Easy for installation, it is not necessary to for a long time in the flow process of medium transmission.
A kind of safety valve pressure pilot system based on perforate flange, including pressure pipeline, pressure pipeline passed through gas and led to
Road is connected to pressure release passage, and crossing gas passage includes that safety valve, safety valve are connected with pressure pipeline, the outlet root of safety valve with let out
Pressure passageway is connected, and crossing gas passage also includes the flange group of the short tube and short tube connection being arranged between safety valve and pressure pipeline,
The short tube is connected with the air inlet root of pressure pipeline, safety valve by flange group, and the flange group includes ring flange, ring flange
Capstan is communicated with by external hole, capstan is communicated with gas bomb, on capstan, is provided with the first stop valve, first
Stop valve is located between gas bomb and ring flange.
In the present invention, pressure pipeline is used for being passed through pumped (conveying) medium, and short tube is the connecting tube between pressure pipeline and safety valve
Road, the short tube are connected with pressure pipeline, safety valve by being connected with flange group；Safety valve plays a part of protection equipment；
First stop valve is used for adjusting the rate-of flow in pressure pipeline and control medium one-way flow；Gas bomb is situated between for storing pressurized
Matter simultaneously provides additonal pressure to short tube, gas bomb, capstan and the various valves being connected on capstan, parts be plus
Pressure system.In prior art, gas bomb is connected on short tube, the capstan between gas bomb and short tube is welded to short tube
On, to dismounting, need to be cut off with cutter, also need to again when can destroy the air-tightness of short tube and secondary connection
Welding, the fragility that same position multiple welding can increase weld cause welding not closed, not only result in short tube damage or
Burst in hyperbaric environment so that detector for safety valve cannot be used, and cannot also accurately measure the setting valve of safety valve；This
Compression system in bright safety valve pressure pilot system is by the conveyance conduit system in ring flange and safety valve pressure pilot system
System connection and then safety valve is pressurizeed, it is achieved that compression system is relatively independent with pipeline system, the installation of compression system, tears open
Unload and follow the installation of ring flange, dismounting to realize that compression system just can't affect the air-tightness and pipe-line system of pipe-line system
Often use, compression system is installed repeatedly, dismantled, and safety valve pressure pilot system is also not in poor air-tightness, and testing result is not
Accurate problem.
Having served as gas passage also includes safety valve root valve, and safety valve root valve working condition good when, safety valve root valve and pressure
Hydraulic piping is connected, and flange group is connected with pressure pipeline by safety valve root valve, and the ring flange of the flange group adopts through type method
Blue disk, offers through hole on the through type ring flange, and the through hole is equal to the duct.The ring flange is outer for offering
Connect ring flange in the ring flange present invention in hole and adopt through type ring flange, it is adaptable in safety valve pressure pilot system, safety
Valve is provided with the situation of safety valve root valve, and safety valve root is sent out has good air-tightness, in safety valve detection, directly will be described
Through type ring flange be arranged between safety valve and safety valve root valve, then by pressurized equipment be connected on through type ring flange with
External hole connection can carry out pressurization detection to safety valve；The present invention from through type ring flange when safety valve is detected, need not
Stop production, after safety valve detection, safety valve can be dismantled, it is also possible to do not dismantle, through type ring flange is easy for installation, detection data is accurate
Really.
Having served as gas passage also includes safety valve root valve, but safety valve root valve working condition is when having gas leakage or having served as gas leads to
There is no safety valve root valve in road, i.e., when flange group is directly connected with pressure pipeline；The perforate flange of the flange group adopts blind plate,
The center of blind plate offers blind hole, and in closed state, the blind hole is equal to duct for the bottom of blind hole, and the ring flange is to open
It is provided with the ring flange of external hole.The present invention tests system as pressurized equipment with safety valve pressure using the blind plate for offering external hole
The Intermediate connection device of system, it is adaptable to which safety valve lower end is fitted without the situation of safety valve root valve, in safety valve pressure test system
In system, safety valve root valve is fitted without, air-tightness is bad；It is the circulation passage of gas-pressurized in the blind hole of blind plate, and blind hole
Bottom is closing, and with good air-tightness, therefore, gas-pressurized directly can reach safety valve by blind hole and safety valve is entered
Row detection；The present invention is detected from blind plate, in detection, needs to stop production；After having detected, need to disassemble blind plate, blind
The dismounting of plate, easy for installation, it is not necessary to for a long time installed in flow process (the pipeline system of safety valve pressure pilot system of medium transmission
System) on.
The flange group includes that first flange group, second flange group, the inlet end of first flange group are connected with pressure pipeline,
The outlet side of first flange group is connected with short tube, and the inlet end of second flange group is connected with short tube, the outlet side of second flange group
Connect with safety valve.One flange group includes two flanges, upper flange and lower flange, then two flange groups just have four flanges simultaneously
And the position of four flanges is different, there is each flange connection function, the upper flange of first flange group to be connected with short tube, the
The lower flange of one flange group is connected with the first ball valve；The lower flange of second flange group is connected with short tube, the upper method of second flange group
Orchid is connected with the air inlet root of safety valve.Even in flange four flanges of group, any one flange may be configured as being provided with external hole
Ring flange.
The first signal inductor is provided with the air inlet root of safety valve, and the first signal inductor is connected with computer.The
One signal inductor is used for detecting the actual pressure by safety valve；If the actual pressure is with safety valve setting in error
In the range of, safety valve is opened, then safety valve is qualified, and the set-pressure of safety valve meets safety standard；If
The actual pressure that first signal inductor is detected has reached the set-pressure of safety valve and safety valve is not turned on or actual
Pressure is not up to safety valve set pressure safety valve and opens, then safety valve is unqualified.
Drain is provided with capstan between the gas bomb and the first stop valve.Drain is used for releasing pressurization
Medium on pipeline, plays release effect, protective effect, additionally it is possible to avoids the pressure in pressure pipeline excessive and causes in short tube
Pressure-bearing limiting value of portion's pressure more than short tube, damages short tube.
Secondary signal inductor, the secondary signal inductor is communicated with capstan between gas bomb and drain
It is connected to computer.When the closing presure for needing to detect safety valve, gas bomb is closed, open drain valve, work as pressure value
When reaching blowdown pressure of safety valve, whether stable by the data that observes on secondary signal inductor, judge the closing of safety valve
Whether pressure is qualified, the data stabilization on secondary signal inductor, then qualified, if under the data that detect of secondary signal inductor
Drop, then safety valve poor air-tightness.
The present invention compared with prior art, has the following advantages and advantages：
1st, a kind of perforate flange of the invention make use of flange easy to disassemble, install advantage extend safety valve pressure test
The service life of system, pressurized equipment are connected with the pipe-line system in safety valve pressure pilot system by ring flange and carry out safety
Valve detection enables that pressurized equipment is repetitious to be dismantled, install, and realization is to pressurized equipment in safety valve pressure pilot system
Timing maintenance, cleaning, also reduce installation cost, simplify mounting process；
2nd, compression system and safety valve pressure examination in a kind of safety valve pressure pilot system based on perforate flange of the present invention
Pipe-line system in check system for medium transmission is in relatively independent relation, and the installation of compression system, dismounting do not interfere with pipe
The air-tightness of road system；
3rd, a kind of safety valve pressure pilot system low cost based on perforate flange of the present invention, the present invention are keeped in repair, are mounted to
This is low, and flange connects through bolt connection, and intensity is big, good airproof performance, low cost；
5th, a kind of safety valve pressure pilot system based on perforate flange of the present invention can avoid medium delivery pipe road due to
Capstan is installed and causes the problem that sealing is poor, bearing capacity is weak of pipeline；
6th, using safety, the present invention is due to air-tightness for a kind of safety valve pressure pilot system based on perforate flange of the present invention
Do not result in high-pressure leakage well and operating personnel are carried out with personal injury, and the present invention does not adopt welding, cutting means, safety
Coefficient is high.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is perforate flange arrangement schematic diagram of the present invention；
Fig. 2 is through type flange plate structure schematic diagram of the present invention；
Fig. 3 is blind plate structure schematic diagram of the present invention；
Fig. 4 is the structural representation of safety valve detecting system of the present invention.
Mark and corresponding parts title in accompanying drawing：
1- ring flanges, 2- external holes, 3- ducts, 4- through type ring flanges, 5- through holes, 6- blind plates, 7- blind holes, 8- force pipes
Road, 9- safety valves, 10- short tubes, 11- flange groups, 12- capstans, 13- gas bombs, the first stop valves of 14-, 15- safety valve roots
Valve.
Specific embodiment
For making the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in figure 1, a kind of perforate flange of the invention, including ring flange 1,1 central axis of ring flange are offered and flange
The duct 3 of 1 concentric co-axial of disk, offers external hole 2 on the side wall of the ring flange 1, external hole 2 is connected with duct 3.
Ring flange of the present invention with external hole is used for the peace in the fields such as industrial gas oil, chemical engineering industry, power plant
Full valve detection check；Safety valve Cleaning Principle is：External pressure is applied to safety valve by pressurized equipment, so as to get safety valve is located
In pipe-line system, pressure value reaches the set-pressure value of safety valve, by judging that safety valve is have unlatching sentencing under set-pressure
Whether disconnected safety valve is qualified；In the present invention, ring flange is in the pipe-line system for connect pressurized equipment and detector for safety valve
Between equipment, pressurized equipment connected by the external hole with ring flange and is passed through adscititious gases to the duct of ring flange, ring flange
Duct is connected with the pipe-line system of detector for safety valve, and therefore adscititious gases can pass sequentially through ring flange, pipe-line system and reach
Safety valve, and then safety valve is detected；In the present invention, ring flange can directly be installed at Jie of safety valve pressure pilot system
On matter pipeline system, it is not necessary to when using, directly dismantle, installation, convenient disassembly, the multiple of ring flange is pacified repeatedly
Dress, dismounting can't affect the air-tightness of whole detecting system so as to increased the service life of safety valve pressure pilot system,
Detection data on the contrary than pressurized equipment on pipeline is accurate, and in the flow process of medium conveying, the installation of ring flange,
Dismounting all will not produce impact to the conveying equipment of medium, after safety valve detection, convey the conveying equipment in flow process according to medium
To choose whether to dismantle ring flange.
Embodiment 2
As shown in Figure 1 and Figure 2, based on embodiment 1, the ring flange 1 be through type ring flange 4, the through type ring flange
Through hole 5 is offered on 4, and the through hole 5 is equal to the duct 3.
In the present invention, ring flange adopts through type ring flange, it is adaptable to which, in safety valve pressure pilot system, safety valve sets
The situation of safety valve root valve is equipped with, safety valve root is sent out has good air-tightness, in safety valve detection, directly will be described straight-through
Formula ring flange be arranged between safety valve and safety valve root valve, then by pressurized equipment be connected on through type ring flange with external
Hole connection can carry out pressurization detection to safety valve；The present invention, need not be stopped production when safety valve is detected from through type ring flange,
After safety valve detection, safety valve can be dismantled, it is also possible to do not dismantle, through type ring flange is easy for installation, detection data is accurate
Embodiment 3
As shown in Figure 1, Figure 3, based on embodiment 1, the ring flange 1 is blind plate 6, and the center of blind plate 6 offers blind hole
7, in closed state, the blind hole 7 is equal to duct 3 for the bottom of blind hole 7.
The present invention is connected as the centre of pressurized equipment and safety valve pressure pilot system using the blind plate for offering external hole
Connect equipment, it is adaptable to which safety valve lower end is fitted without the situation of safety valve root valve, in safety valve pressure pilot system, do not pacify
Dress safety valve root valve, air-tightness are bad；It is the circulation passage of gas-pressurized in the blind hole of blind plate, and the bottom of blind hole is closing
, with good air-tightness, therefore, gas-pressurized directly can reach safety valve by blind hole and safety valve detected；This
Invention is detected from blind plate, in detection, needs to stop production；After having detected, need to disassemble blind plate, the dismounting of blind plate,
Easy for installation, it is not necessary to for a long time in the flow process of medium transmission.
Embodiment 4
As shown in figure 4, embodiment 1 is based on, a kind of safety valve pressure of the perforate flange based on described in claim 1 of the present invention
Power pilot system, including pressure pipeline 8, pressure pipeline 8 passed through gas passage and was connected to pressure release passage, and crossing gas passage includes safety
Valve 9, safety valve 9 are connected with pressure pipeline 8, and the outlet root 52 of safety valve 9 is connected with pressure release passage, and crossing gas passage also includes setting
The flange group 11 of short tube 10 and short tube 10 connection between safety valve 9 and pressure pipeline 8 is put, the short tube 10 passes through flange
Group 11 is connected with the air inlet root 51 of pressure pipeline 8, safety valve 9, it is characterised in that the flange group 11 includes ring flange 1, method
Blue disk 1 is communicated with capstan 12 by external hole 2, and capstan 12 is communicated with gas bomb 13, is provided with capstan 12
First stop valve 14, the first stop valve 14 are located between gas bomb 13 and ring flange 1.
In prior art, gas bomb is connected on short tube, the capstan between gas bomb and short tube is welded to short
On pipe, to dismounting, need to be cut off with cutter, also need to again when can destroy the air-tightness of short tube and secondary connection
Secondary welding, the fragility that same position multiple welding can increase weld cause welding not closed, not only result in short tube damage or
Burst in hyperbaric environment so that detector for safety valve cannot be used, and cannot also accurately measure the setting valve of safety valve；This
Compression system in invention safety valve pressure pilot system is by the conveyance conduit in ring flange and safety valve pressure pilot system
System connectivity is further pressurizeed to safety valve, it is achieved that compression system is relatively independent with pipeline system, the installation of compression system,
Dismounting follows the installation of ring flange, dismounting to realize that compression system can't affect the air-tightness and pipe-line system of pipe-line system
Normal use, compression system is installed repeatedly, is dismantled, and safety valve pressure pilot system is also not in poor air-tightness, testing result
Inaccurate problem.
Embodiment 5
Embodiment 4 is based on, having served as gas passage also includes safety valve root valve 15, and safety valve root 15 working conditions of valve are good
When, safety valve root valve 15 is connected with pressure pipeline 8, and flange group 11 is connected with pressure pipeline 8 by safety valve root valve 15, the method
The ring flange 1 of blue group 11 offers through hole 5, the through hole 5 and institute using through type ring flange 4 on the through type ring flange 4
State duct 3 to be equal to.The ring flange 1 is the ring flange for offering external hole.In the present invention, ring flange adopts through type ring flange,
Suitable for, safety valve pressure pilot system, safety valve is provided with the situation of safety valve root valve, safety valve root is sent out to be had well
Air-tightness, safety valve detection in, directly by the through type ring flange be arranged between safety valve and safety valve root valve, so
Being connected to pressurized equipment by connecting with external hole on through type ring flange afterwards carries out pressurization detection to safety valve；Present invention choosing
With through type ring flange when safety valve is detected, without the need for stopping production, after safety valve detection, safety valve can be dismantled, it is also possible to do not tear open
Unload, through type ring flange is easy for installation, detection data is accurate.
Embodiment 6
Based on embodiment 4, having served as gas passage also includes safety valve root valve, but safety valve root valve working condition is when having gas leakage
Or having served as gas passage does not have safety valve root valve, i.e., when flange group is directly connected with pressure pipeline, the method for the flange group 11
Blue disk 1 adopts the center of blind plate 6, blind plate 6 to offer blind hole 7, and the bottom of blind hole 7 is in closed state, the blind hole 7 and duct
3 equivalents.The ring flange 1 is the ring flange for offering external hole.The present invention is using offering the blind plate of external hole as pressurization
Equipment and the Intermediate connection device of safety valve pressure pilot system, it is adaptable to which safety valve lower end is fitted without the feelings of safety valve root valve
Condition, in safety valve pressure pilot system, is fitted without safety valve root valve, and air-tightness is bad；It is pressurization gas in the blind hole of blind plate
The circulation passage of body, and the bottom of blind hole is closing, with good air-tightness, therefore, gas-pressurized directly passes through blind hole
Can reach safety valve to detect safety valve；The present invention is detected from blind plate, in detection, needs to stop production；After having detected,
Need to disassemble blind plate, the dismounting of blind plate, easy for installation, it is not necessary to for a long time in the flow process of medium transmission.Blind
Plate unloads the effect of the normal connecting pipe that can't affect flange group.
Embodiment 7
Embodiment 5 is based on, the flange group 11 includes first flange group, second flange group, the inlet end of first flange group
Connect with pressure pipeline 8, the outlet side of first flange group is connected with short tube 10, the inlet end of second flange group is connected with short tube 10
Logical, the outlet side of second flange group is connected with safety valve 9.The lower flange of first flange group using the ring flange 1 for being provided with external hole,
The lower flange pressure pipeline connection of first flange group, the present embodiment are provided with peace in safety valve detecting system embodiment 5
The situation of full valve root valve, need not stop work in test process, and the gas that the gas bomb in capstan is passed through to short tube is first
The gas mixing being passed through to short tube with pressure pipeline at the lower flange of flange group, mixed gas are mixed during being upwardly into safety valve
More uniform, the distance of the lower flange to safety valve of first flange group is remote, and the gas mixing time is long, so the mixing of gas energy structure
More uniform, the pressure of mixed gas is more stable, will not produce partial high pressure, and partial high pressure can cause capstan and pipe
Damage and economic loss is caused so as to increase maintenance cost in road.
Embodiment 8
As different from Example 7, the upper flange of first flange group is using the ring flange 1 for being provided with external hole, upper flange with
Capstan is connected, and the present embodiment has the advantages that in embodiment 2, is the further optimization to embodiment 2, and the present embodiment is in guarantor
Under the conditions of card mixed gas are mixed uniformly, the incorporation time of mixed gas has been shortened in right amount, and gas has been avoided in upper flange
Intensity, sealing with the junction generation leakage of lower flange, upper flange and lower flange junction is all relatively weak, easily in height
Pressure is impaired.
Embodiment 9
Embodiment 6 is based on, the flange group 11 includes first flange group, second flange group, the inlet end of first flange group
Connect with pressure pipeline 8, the outlet side of first flange group is connected with short tube 10, the inlet end of second flange group is connected with short tube 10
Logical, the outlet side of second flange group is connected with safety valve 9.In the present embodiment, the lower flange of second flange group is using being provided with external hole
Ring flange 1, be fitted without the feelings of safety valve root valve in the safety detecting system that the present embodiment is proposed suitable for embodiment 6
Condition, the gas bomb in the present embodiment in capstan provide whole pressure of safety valve testing, present embodiment to safety valve
To shorten the distance of capstan and safety valve as far as possible, test rate can be accelerated and air-tightness is good.
Embodiment 10
As different from Example 9, in the present embodiment the upper flange of second flange group using the ring flange for being provided with external hole
1, the present embodiment is the optimization to embodiment 9, this embodiment avoids upper flange and laxative remedy of the gases at high pressure in second flange group
Blue junction leaks, and the intensity of upper flange and lower flange junction, sealing are all relatively weak, easily receive under high pressure
Damage；And from safety valve recently, detection time is most short for the upper flange of second flange group.
Embodiment 11
Based on above-described embodiment, the first signal inductor, the first induction of signal on the air inlet root 51 of safety valve 9, is provided with
Device is connected with computer.First signal inductor is used for detecting the actual pressure by safety valve；If the actual pressure with
Safety valve setting in error range, open by safety valve, then safety valve is qualified, and the set-pressure of safety valve is
Meet safety standard；If the actual pressure that the first signal inductor is detected has reached the set-pressure of safety valve and safety valve
It is not turned on or actual pressure is not up to safety valve set pressure safety valve and opens, then safety valve is unqualified.
Embodiment 12
Based on above-described embodiment, on the capstan 12 between the gas bomb 13 and the first stop valve 14, emptying is provided with
Mouthful.Secondary signal inductor, the secondary signal inductor is communicated with capstan 12 between gas bomb 13 and drain
It is connected to computer.Drain is used for releasing the medium on capstan, plays release effect, protective effect, additionally it is possible to avoid
Pressure in capstan is excessive and cause pressure-bearing limiting value of the short tube internal pressure more than pipeline, damage short tube.When needing to examine
During the closing presure of survey safety valve, gas bomb is closed, open drain valve, when pressure value reaches blowdown pressure of safety valve,
Whether stable by the data that observes on secondary signal inductor, judge whether the closing presure of safety valve is qualified, secondary signal
Data stabilization on inductor, then qualified, if the data that secondary signal inductor is detected decline, safety valve poor air-tightness；
Pressure-reducing valve is used for the speed of control pressure pipeline release.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, the be should be understood that specific embodiment that the foregoing is only the present invention is not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements that within the spirit and principles in the present invention, is done etc. all should include
Within protection scope of the present invention.
Claims (10)
1. a kind of perforate flange, including ring flange (1), ring flange (1) central axis are offered and ring flange (1) concentric co-axial
Duct (3), it is characterised in that offer external hole (2) on the side wall of ring flange (1), external hole (2) is with duct (3) even
Logical.
2. a kind of perforate flange according to claim 1, it is characterised in that described ring flange (1) is through type ring flange
(4) through hole (5) is offered on through type ring flange (4), and through hole (5) are equal to the duct (3).
3. a kind of perforate flange according to claim 1, it is characterised in that described ring flange (1) is blind plate (6), blind plate
(6) center offers blind hole (7), and the bottom of blind hole (7) is in closed state, and blind hole (7) are equal to duct (3).
4. a kind of safety valve pressure pilot system of the perforate flange based on described in claim 1, including pressure pipeline (8), presses
Hydraulic piping (8) passed through gas passage and was connected to pressure release passage, and crossing gas passage includes safety valve (9), safety valve (9) and pressure pipeline
(8) connect, the outlet root (52) of safety valve (9) connect with pressure release passage, mistake gas passage also include being arranged on safety valve (9) and
The flange group (11) that short tube (10) and short tube (10) between pressure pipeline (8) connects, described short tube (10) pass through flange group
(11) connect with the air inlet root (51) of pressure pipeline (8), safety valve (9), it is characterised in that described flange group (11) include method
Blue disk (1), ring flange (1) are communicated with capstan (12) by external hole (2), and capstan (12) is communicated with gas bomb
(13) the first stop valve (14), is provided with capstan (12), and the first stop valve (14) is located at gas bomb (13) and ring flange
(1) between.
5. a kind of safety valve pressure pilot system based on perforate flange according to claim 4, it is characterised in that cross gas
Passage also includes safety valve root valve (15), and safety valve root valve (15) working condition good when, safety valve root valve (15) and pressure
Pipeline (8) is connected, and flange group (11) is connected with pressure pipeline (8) by safety valve root valve (15), the method for flange group (11)
Blue disk (1) offers through hole (5), through hole (5) and institute using through type ring flange (4) on through type ring flange (4)
State duct (3) equivalent.
6. a kind of safety valve pressure pilot system based on perforate flange according to claim 4, it is characterised in that served as
Gas passage also includes safety valve root valve (15), but safety valve root valve (15) working condition is when having gas leakage, flange group (11)
Ring flange (1) adopt blind plate (6), the center of blind plate (6) to offer blind hole (7), the bottom of blind hole (7) is in closed state,
Blind hole (7) are equal to duct (3).
7. a kind of safety valve pressure pilot system based on perforate flange according to claim 4, it is characterised in that served as
There is no safety valve root valve (15) in gas passage, i.e., when flange group (11) is directly connected with pressure pipeline (8), flange group (11)
Ring flange (1) adopt blind plate (6), the center of blind plate (6) to offer blind hole (7), the bottom of blind hole (7) is in closed state,
Blind hole (7) are equal to duct (3).
8. a kind of safety valve pressure based on perforate flange according to any one CLAIM OF BENEFIT in claim 4-7 is tested
System, it is characterised in that described flange group (11) include first flange group, second flange group, the inlet end of first flange group with
Pressure pipeline (8) is connected, and the outlet side of first flange group connected with short tube (10), the inlet end of second flange group and short tube (10)
Connection, the outlet side of second flange group is connected with safety valve (9).
9. a kind of safety valve pressure pilot system based on perforate flange according to claim 8, it is characterised in that safety
The first signal inductor is provided with the air inlet root (51) of valve (9), the first signal inductor is connected with computer.
10. a kind of safety valve pressure pilot system based on perforate flange according to claim 8, it is characterised in that institute
State drain is provided with the capstan (12) between gas bomb (13) and the first stop valve (14)；Gas bomb (13) and emptying
Secondary signal inductor is communicated with capstan (12) between mouthful, the secondary signal inductor is connected to computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203103.3A CN106499889B (en) | 2016-12-23 | 2016-12-23 | A kind of safety valve pressure pilot system based on trepanning flange |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203103.3A CN106499889B (en) | 2016-12-23 | 2016-12-23 | A kind of safety valve pressure pilot system based on trepanning flange |
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| CN106499889A true CN106499889A (en) | 2017-03-15 |
| CN106499889B CN106499889B (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611203103.3A Active CN106499889B (en) | 2016-12-23 | 2016-12-23 | A kind of safety valve pressure pilot system based on trepanning flange |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109084973A (en) * | 2018-09-03 | 2018-12-25 | 江苏核电有限公司 | A kind of device for medium self-powered movable valve switch test |
| CN115554640A (en) * | 2022-06-17 | 2023-01-03 | 王小东 | Fire water channel check out test set |
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| CN115554640A (en) * | 2022-06-17 | 2023-01-03 | 王小东 | Fire water channel check out test set |
| CN115554640B (en) * | 2022-06-17 | 2023-12-01 | 广东天一建设工程有限公司 | Fire fighting water channel detection equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106499889B (en) | 2018-09-28 |
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Effective date of registration: 20200108 Address after: 610000 area C, Tianfu Jingrong center, Chengdu Science City, No. 6, west section of Hupan Road, Xinglong Street, Tianfu New District, Chengdu, Sichuan Province Patentee after: Sichuan Safety Measurement Technology Co., Ltd. Address before: 400000 Chongqing District of Beibei City, the town of salt dam No. 63 of No. 2 Patentee before: Wang Xiaodong |
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