CN106286917A - Relief valve - Google Patents

Relief valve Download PDF

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Publication number
CN106286917A
CN106286917A CN201610837142.2A CN201610837142A CN106286917A CN 106286917 A CN106286917 A CN 106286917A CN 201610837142 A CN201610837142 A CN 201610837142A CN 106286917 A CN106286917 A CN 106286917A
Authority
CN
China
Prior art keywords
valve
water channel
hole
relief
connects
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610837142.2A
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Chinese (zh)
Other versions
CN106286917B (en
Inventor
金哲龙
姚文龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU LONGLISHEN FINE TECHNOLOGY Co Ltd
Original Assignee
JIANGSU LONGLISHEN FINE TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN201610837142.2A priority Critical patent/CN106286917B/en
Publication of CN106286917A publication Critical patent/CN106286917A/en
Application granted granted Critical
Publication of CN106286917B publication Critical patent/CN106286917B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0413Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/048Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0091For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K43/00Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose
    • F16K43/001Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose an auxiliary valve being actuated independently of the main valve

Abstract

The invention discloses a kind of relief valve, including: the parts such as valve body, piston, water channel transducer, executor, pressure transducer.Relative to conventional security valve, this relief valve used unit is reduced relatively, especially optimizes the structure of water channel transducer, the simplest.Simultaneously, it is only necessary to rotate maintenance screw and make the first water channel block, relief valve can be kept to be closed all the time, it is simple in the case of not taking off relief valve, the parts of relief valve are keeped in repair and censorship.After optimization, part vitals is positioned on dismountable valve gap, takes off valve gap and by relevant parts censorship, and the parts in valve pocket can be keeped in repair after taking off valve gap, more convenient.

Description

Relief valve
Technical field
The present invention relates to valve technology field, especially relate to a kind of relief valve.
Background technology
Relief valve is the one of safeguard protection valve, and it remains closed under atmospheric pressure state, the liquid in equipment or pipeline Body medium (the most also can be gas medium) pressure raises and automatically turns on when exceeding setting, guarantees system carrying out pressure release Safety.So, relief valve is mainly used on boiler, pressure vessels and pipes, controls pressure and is less than setting, to personal safety Important protective effect has been run with equipment.
At present, what domestic use was most is spring pound level security valve.This relief valve is internal to be controlled to open by spring.By Often change in the long-term stress of spring and elastic force, even if Producer selects optimal spring materials, use the most perfect spring raw Production. art, the life-span of spring is also limited, and As time goes on elastic force can change.Thus not only fault rate is high, and body Long-pending huge, need annual annual test.
To this end, the present inventor have developed a kind of deadweight safety valve, including: valve body, this valve body includes valve pocket, and this valve pocket has By connector dam face connection water inlet and outlet, meanwhile, this valve body is provided with one end and connects the first of this water inlet Water channel, one end connect the second water channel of this outlet, one end connects the 3rd water channel of this valve pocket;Piston, this piston can go up bottom Move and seal coordinate be positioned at this valve pocket, be provided with stage clip between this piston and bottom of this valve pocket, under normal conditions, this stage clip to On push piston and make valve remain turned-off under normal conditions, meanwhile, this piston is provided with the sealing member being positioned at this water inlet, and This sealing member and this connector face of damming matches;Triple-valve cap, this triple-valve cap includes the threeway valve pocket of lower openings, this threeway It is sealed with fixed switch piece at valve chamber open, this fixed switch piece is positioned at the axle center of this fixed switch piece and is provided with up/down perforation Middle through-hole and this middle through-hole be respectively arranged on the left side and the right side the left through hole of up/down perforation, right through hole, wherein, this left side leads to Hole, middle through-hole, the bottom of right through hole are respectively communicated with the other end of the three, the first, second water channels;It is positioned at this three-way valve intracavity The upper surface of the rotary switch member in portion, this rotary switch member lower surface and this fixed switch piece seals and coordinates, and meanwhile, this rotation is opened Pass part left part is provided with at the left connection hole of up/down perforation, axle center and is provided with middle part intercommunicating pore, right part lower surface is provided with radian and is more than The arcuate groove of 180, and in the middle part of this, intercommunicating pore connects with this middle through-hole;This executor of executor is connected by threeway valve rod should Rotary switch member;It is connected to the Pressure gauge of this threeway valve pocket;Wherein, the safe pressure of setting is reached when this manometric pressure After, Pressure gauge controls this executor's action;And after this executor drives this rotary switch member to rotate, this left connection hole and this left side Through hole connects, and when this executor drives this rotary switch member opposite direction to rotate, this arcuate groove connects this left through hole and this right side leads to Hole.That is, face of after sealing member upper and lower displacement damming this connector opens or closes, and the displacement of this sealing member is mainly passed through The change of pressure that this piston is formed by liquid medium and action, it is to avoid simple use spring promotes this sealing member to this connector The enforcement in face of damming opens or closes, thus occurs situation about losing efficacy or elastic force changes because of the long-term stress of spring, and then Fault rate is relatively low, it is not necessary to frequently proofread.Meanwhile, this deadweight safety valve beating by this deadweight safety valve of action control of executor Open or close and close, it is not necessary to use huge rotary handle, so that this deadweight safety valve possesses the condition being prepared as smaller size smaller.
The present invention is the further improvement to aforementioned hydraulic relief valve, to its in terms of maintenance more convenient, and make it Structure is the simplest.
Summary of the invention
It is an object of the invention to provide a kind of relief valve, it has simple in construction, and maintenance and censorship are the most square
Just feature.
The technical solution adopted in the present invention is: relief valve, including:
Valve body, this valve body includes valve pocket, this valve pocket have by connector dam face connection water inlet and outlet, meanwhile, This valve body is provided with that one end connects the first water channel of this water inlet, one end connects the second water channel of this outlet, one end connection should 3rd water channel of valve pocket;
Piston, this piston can upper and lower displacement and seal coordinate be positioned at this valve pocket, set between this piston and bottom of this valve pocket Having stage clip, meanwhile, this piston is provided with the sealing member being positioned at this water inlet, and this sealing member and this connector dam face phase Join;
Water channel transducer;
Executor, this executor and this water channel transducer match;
Pressure transducer, this pressure transducer senses the hydraulic pressure in this first water channel, and this pressure transducer is compatible with this execution Device;
Having a sealing screw on described valve body, be bolted with a sealed screw in this sealing screw, meanwhile, this first water channel includes Having the vertical portion and horizontal part linked together, this sealing screw is positioned on the extension line of this vertical portion, and this sealing screw Inner this first water channel that connects, and, the upper end of this vertical portion is provided with female thread, and this female thread is furnished with a maintenance screw.
Described maintenance screw upper surface is provided with instrument deep gouge.
Described valve body top is detachably and fixedly provided with valve gap, the upper opening of this this valve pocket of valve bonnet seal.
Described bonnet lower is provided with receiving chamber, and this water channel transducer is positioned at this receiving intracavity, meanwhile, this executor, pressure Sensor is respectively positioned on this valve gap.
Described water channel transducer includes: be fixed on the upper surface of the fixture of this receiving intracavity, lower surface and this fixture The conflict sealed revolving part together, wherein, this fixture is provided with lower pressurized hole and link slot, the bottom of this lower pressurized hole Connect this first water channel, this link slot curved, and this lower pressurized hole is positioned on the circle at this link slot place, the circle of this link slot The heart is positioned in the rotary shaft of this revolving part, and this revolving part is provided with relief hole and upper pressurized hole, and the top connection of this relief hole should Second water channel, on this, the top of pressurized hole connects the 3rd water channel, this relief hole and on this lower end of pressurized hole can connect simultaneously This link slot logical, and when on this, the lower end of pressurized hole aligns this lower pressurized hole, this relief hole is close by the upper surface of this fixture Closing, meanwhile, this executor connects to be had one in vertical valve rod, and the lower end of this valve rod connects this revolving part.
Described sealing member be fixedly arranged in the middle of a upwardly extending connecting rod, this piston is fixed on this connecting rod by a nut Upper end.
The relief valve of the present invention is advantageously:
1, simple in construction, maintenance and censorship are more convenient.Used unit is reduced relatively, especially optimizes water channel conversion The structure of device is the simplest.Simultaneously, it is only necessary to rotate maintenance screw and make the first water channel block, relief valve can be kept All the time it is closed, it is simple in the case of not taking off relief valve, the parts of relief valve are keeped in repair and censorship.Optimize After, part vitals is positioned on dismountable valve gap, taking off valve gap can be by relevant parts censorship, and after taking off valve gap Parts in valve pocket can be keeped in repair, more convenient.
2, safety and stability is run.Use pressure transducer control valve open rather than traditional mechanical system open Open, thus safety is higher, stability more preferably.
3, vibrations are preferably prevented.Meet relief valve and open the most important condition soon and timely.No matter relief valve bore is big Little switch dynamics can not be more than 3N, and the opening time does not surpass the 1-2 second.During unlatching, piston overpowers hydraulic pressure withstands the power of flap and down pushes away, Thus opening speed is uniform, shockproof during water outlet, adjust pressure release aperture during closedown, adjust the shut-in time, effectively prevent closedown Seismism.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the front sectional view of the relief valve of embodiments of the invention;
Fig. 2 is the section components front sectional view at another visual angle of the relief valve of embodiments of the invention;
Fig. 3 is the top view of the fixture of the present invention;
Fig. 4 is the upward view of the revolving part of the present invention;
Fig. 5 to Fig. 8 is the relief valve exploded view at different disassembly status of the present invention.
In figure:
10, valve body, 11, valve pocket, the 111, the 3rd water channel, 12, connector dam face, 13, water inlet, the 131, first water channel, 1311, Vertical portion, 13111, female thread, 1312, horizontal part, 14, outlet, the 141, second water channel, 15, seal screw;
20, piston, 21, sealing member, 22, stage clip, 23, connecting rod, 24, nut;
30, water channel transducer, 31, fixture, 311, lower pressurized hole, 312, link slot, 32, revolving part, 321, relief hole, 322, Upper pressurized hole;
40, executor, 41, valve rod;
50, pressure transducer;
61, sealed screw, 62, maintenance screw, 621, instrument deep gouge;
70, valve gap, 71, accommodate chamber.
Detailed description of the invention
Embodiment, as shown in Fig. 1 and Fig. 2: relief valve, including: valve body 10, piston 20, water channel transducer 30, executor 40, the parts such as pressure transducer 50.
Concretely:
This valve body 10 includes valve pocket 11, this valve pocket 11 have by connector dam face 12 connection water inlet 13 and outlet 14.That is, this connector dams and forms connecting or blocking of this water inlet 13 and this outlet 14 when face 12 opens or closes.Also That is, opening or closing of this relief valve is formed.Meanwhile, this valve body 10 is provided with one end and connects the first water channel of this water inlet 13 131, one end connects the second water channel 141 of this outlet 14, one end connects the 3rd water channel 111 of this valve pocket 11.Such as, this first Water channel the 131, second water channel the 141, the 3rd water channel 111 is respectively positioned on the sidewall of this valve body 10.
This piston 20 can upper and lower displacement and seal coordinate be positioned at this valve pocket 11.That is, this piston 20 can upper and lower displacement, and What two parts that this valve pocket 11 is positioned at this piston about 20 sealed against each other separates.Such as, the side of this piston 20 is provided with sealing Circle.And, it being provided with stage clip 22 between this piston 20 and bottom of this valve pocket 11, this stage clip 22 avoids in transport, installation process Or system is when bringing into operation, this piston 20, because the weight of self is toward moving down, in turn results in leakage or closes the tightest phenomenon.This place The bottom of the valve pocket 11 of meaning, refers to the opening part that this valve pocket 11 connects with this outlet 14.Meanwhile, this piston 20 lower end is provided with Being positioned at the sealing member 21 of this water inlet 13, this sealing member 21 and this connector face 12 of damming matches.That is, this sealing member 21 moves This connector of rear closedown dams face 12;Otherwise, this sealing member 21 is opened this connector and is dammed face 12 after moving down.
This executor 40 and this water channel transducer 30 match.That is, after this executor 40 work, this water channel transducer 30 is driven Action, makes this second water channel 141 connect with this first water channel 131 then, or makes the 3rd water channel 111 and this first water channel 131 connections, or make this first water channel not connect with this second water channel the 141, the 3rd water channel 111.
This pressure transducer 50 senses the hydraulic pressure in this first water channel 131, and this pressure transducer 50 is compatible with this execution Device 40.That is, experience after hydraulic pressure exceedes setting value when this pressure transducer 50, this executor 40 can be controlled and work.
Further say:
Shown in Fig. 5 and Fig. 6, this valve body 10 has a sealing screw 15, in this sealing screw 15, be bolted with a sealing spiral shell Silk 61.Meanwhile, this first water channel 131 includes the vertical portion 1311 and horizontal part 1312 linked together.That is, this first water channel 131 are turned round in the joint portion of this vertical portion 1311 and this horizontal part 1312.This sealing screw 15 is positioned at this vertical portion On the extension line of 1311, and the inner of this sealing screw 15 connects this first water channel 131.And, the upper end of this vertical portion 1311 Portion is provided with female thread 13111, and this female thread 13111 is furnished with a maintenance screw 62.That is, when every day use, can be by this maintenance Screw 62 unscrews, and keeps screwing of this sealed screw 61, then keeps the unimpeded of this first water channel 131;Otherwise, when needs are tieed up When repairing with censorship, it is only necessary to take off this sealed screw 61, and through this sealing screw 15, this maintenance screw 62 is screwed, can will be somebody's turn to do First water channel 131 blocks, in order to keeps in repair, maintain and censorship.
Obviously, for the ease of this maintenance screw 62 of turn, this maintenance screw 62 upper surface is provided with instrument deep gouge 621.Ratio As, this instrument deep gouge 621 is 1-shaped open, cross mouth or interior hex slot.
Optimize:
Shown in Fig. 7, this valve body 10 top is detachably and fixedly provided with valve gap 70, and the top that this valve gap 70 seals this valve pocket 11 is opened Mouthful.Such as, this valve gap 70 is fixed on this valve body 10 by screw, and the downside of this valve gap 70 i.e. act as this valve pocket 11 Upper side wall.So, take off this valve gap 70, the parts in this valve pocket 11 can be made to be able to exposed, in order to maintenance.
More excellent:
This valve gap 70 bottom is provided with receiving chamber 71.Obviously, this receiving chamber 71 is closed state.This water channel transducer 30 is positioned at this appearance Receive in chamber 71.Meanwhile, this executor 40, pressure transducer 50 are respectively positioned on this valve gap 70.That is, take off this valve gap 70 can take off The vitals such as aforementioned executor 40, pressure transducer 50, water channel transducer 30, in order to above-mentioned parts is individually taken off and carries out Censorship.
This water channel transducer 30 can use common structure.In the present embodiment, shown in Fig. 3 and Fig. 4, this water channel turns Parallel operation 30 includes: be fixed on the conflict that the upper surface of the fixture 31 in this receiving chamber 71, lower surface and this fixture 31 seals Revolving part 32 together.Preferably mode is, this fixture 31 and this revolving part 32 are the circle that ceramic is standby, and the two Coaxially.Wherein, this fixture 31 is provided with lower pressurized hole 311 and link slot 312, the bottom of this lower pressurized hole 311 connect this One water channel 131;This link slot 312 curved and its necessarily can not the upper and lower surface of this fixture 31 through, this lower pressurized hole 311 Being positioned on the circle at this link slot 312 place, the center of circle of this link slot 312 is positioned in the rotary shaft of this revolving part 32;This revolving part 32 are provided with relief hole 321 and upper pressurized hole 322, and the top of this relief hole 321 connects this second water channel 141, pressurized hole on this The top of 322 connects the 3rd water channel 111.This relief hole 321 can connect this connection with the lower end of pressurized hole on this 322 simultaneously Groove 312.That is, the lower end of this relief hole 321 can all connect this link slot 312 with the lower end of pressurized hole on this 322 simultaneously, from And form connecting of this relief hole 321 and pressurized hole on this 322.On this, the lower end of pressurized hole 322 aligns this lower pressurized hole 311 Time, this relief hole 321 is airtight by the upper surface of this fixture 31.That is, after this revolving part 32 rotates, it is possible to achieve this first water channel 131 with the connecting of the 3rd water channel 111, thus this water inlet 13 is connected with this outlet 14;Also this first water can be realized Road 131 is closed, and this second water channel 141 connects with the 3rd water channel 111, thus this outlet 14 connects with this valve pocket 11.As This, by the relative change of pressure, it is achieved this piston 20 moves up and down, and drives moving up and down of this sealing member 21.Meanwhile, this is held Row device 40 connects to be had one in vertical valve rod 41, and the lower end of this valve rod 41 connects this revolving part 32.That is, this executor 40 is by being somebody's turn to do Valve rod 41 drives this revolving part 32 to rotate.So, the structure making this water channel transducer 30 is the simplest, reasonable.
Continue to optimize:
Shown in Fig. 8, this sealing member 21 be fixedly arranged in the middle of a upwardly extending connecting rod 23, this piston 20 is by a nut 24 It is fixed on the upper end of this connecting rod 23.That is, dam on the premise of face 12 keeping this sealing member 21 to close this connector, this piston 20 And the parts such as stage clip 22 also can take off, in order to carry out the operations such as maintenance.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization Equivalent structure or equivalence flow process that description of the invention and accompanying drawing content are made convert, or it is relevant to be directly or indirectly used in other Technical field, be the most in like manner included in the scope of patent protection of the present invention.

Claims (6)

1. relief valve, including:
Valve body (10), this valve body (10) includes that valve pocket (11), this valve pocket (11) have and dams what face (12) connected by connector Water inlet (13) and outlet (14), meanwhile, this valve body (10) is provided with one end and connects first water channel of this water inlet (13) (131), one end connects second water channel (141) of this outlet (14), one end connects the 3rd water channel (111) of this valve pocket (11);
Piston (20), this piston (20) can upper and lower displacement and sealing coordinate be positioned at this valve pocket (11), this piston (20) and this Being provided with stage clip (22) between the bottom of valve pocket (11), meanwhile, this piston (20) lower end is provided with and is positioned at the close of this water inlet (13) Sealing (21), and this sealing member (21) and this connector face (12) of damming matches;
Water channel transducer (30);
Executor (40), this executor (40) and this water channel transducer (30) match;
Pressure transducer (50), this pressure transducer (50) senses the hydraulic pressure in this first water channel (131), and this pressure transducer (50) this executor (40) it is compatible with;
It is characterized in that: on described valve body (10), have a sealing screw (15), in this sealing screw (15), be bolted with a sealing Screw (61), meanwhile, this first water channel (131) includes the vertical portion (1311) and horizontal part (1312) linked together, should Seal screw (15) to be positioned on the extension line of this vertical portion (1311), and the inner of this sealing screw (15) connects this first water channel (131), and, the upper end of this vertical portion (1311) is provided with female thread (13111), and this female thread (13111) is furnished with a maintenance Screw (62).
Relief valve the most according to claim 1, it is characterised in that: described maintenance screw (62) upper surface is provided with instrument and sinks Groove (621).
Relief valve the most according to claim 1, it is characterised in that: described valve body (10) top is detachably and fixedly provided with valve gap (70), this valve gap (70) seals the upper opening of this valve pocket (11).
Relief valve the most according to claim 3, it is characterised in that: described valve gap (70) bottom is provided with receiving chamber (71), should Water channel transducer (30) is positioned at this receiving chamber (71), and meanwhile, this executor (40), pressure transducer (50) are respectively positioned on this valve gap (70) on.
Relief valve the most according to claim 4, it is characterised in that: described water channel transducer (30) including: is fixed on this appearance Receive the fixture (31) in chamber (71), lower surface and this fixture (31) upper surface seal conflict together with revolving part (32), wherein, this fixture (31) is provided with lower pressurized hole (311) and link slot (312), the bottom of this lower pressurized hole (311) Connect this first water channel (131), this link slot (312) curved, and this lower pressurized hole (311) is positioned at this link slot (312) institute Circle on, the center of circle of this link slot (312) is positioned in the rotary shaft of this revolving part (32), and this revolving part (32) is provided with pressure release Hole (321) and upper pressurized hole (322), the top of this relief hole (321) connects this second water channel (141), pressurized hole (322) on this Top connect the lower end of the 3rd water channel (111), this relief hole (321) and pressurized hole on this (322) can be connected this simultaneously Link slot (312), and when on this, the lower end of pressurized hole (322) aligns these lower pressurized hole (311), this relief hole (321) is by this The upper surface of fixture (31) is airtight, and meanwhile, this executor (40) connects to be had one in vertical valve rod (41), this valve rod (41) Lower end connects this revolving part (32).
Relief valve the most according to claim 1, it is characterised in that: being fixedly arranged in the middle of of described sealing member (21) one is upwards prolonged The connecting rod (23) stretched, this piston (20) is fixed on the upper end of this connecting rod (23) by a nut (24).
CN201610837142.2A 2016-09-21 2016-09-21 Safety valve Active CN106286917B (en)

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Application Number Priority Date Filing Date Title
CN201610837142.2A CN106286917B (en) 2016-09-21 2016-09-21 Safety valve

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Application Number Priority Date Filing Date Title
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CN106286917A true CN106286917A (en) 2017-01-04
CN106286917B CN106286917B (en) 2019-03-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108386583A (en) * 2018-03-09 2018-08-10 佛山市骏渔信息科技有限公司 A kind of relief valve applied widely

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Publication number Priority date Publication date Assignee Title
US3854494A (en) * 1974-02-04 1974-12-17 Crosby Valve & Gage Safety valve
CN88200110U (en) * 1988-01-15 1988-10-19 航天工业部第十一研究所 Pilot bellows type relief valve
CN2844598Y (en) * 2005-09-20 2006-12-06 上海日泰阀门制造有限公司 Direct-operated regulator
CN2929368Y (en) * 2006-06-23 2007-08-01 金哲龙 Valve
CN102128273A (en) * 2010-01-18 2011-07-20 江苏龙力神精工科技有限公司 Fire hydrant rapid valve
CN202048040U (en) * 2011-04-29 2011-11-23 佛山市顺德区震德塑料机械有限公司 Novel hydraulic safety valve
CN202209455U (en) * 2011-09-23 2012-05-02 福建福思特阀门集团有限公司 Safe power-driven pressure releasing and holding valve
CN202510785U (en) * 2012-03-29 2012-10-31 天正阀门有限公司 High-temperature high-pressure pneumatic control automatic pressure release valve
CN203413197U (en) * 2013-08-16 2014-01-29 湖北泰和石化设备有限公司 Self-reliance pilot-operated type flow control valve

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854494A (en) * 1974-02-04 1974-12-17 Crosby Valve & Gage Safety valve
CN88200110U (en) * 1988-01-15 1988-10-19 航天工业部第十一研究所 Pilot bellows type relief valve
CN2844598Y (en) * 2005-09-20 2006-12-06 上海日泰阀门制造有限公司 Direct-operated regulator
CN2929368Y (en) * 2006-06-23 2007-08-01 金哲龙 Valve
CN102128273A (en) * 2010-01-18 2011-07-20 江苏龙力神精工科技有限公司 Fire hydrant rapid valve
CN202048040U (en) * 2011-04-29 2011-11-23 佛山市顺德区震德塑料机械有限公司 Novel hydraulic safety valve
CN202209455U (en) * 2011-09-23 2012-05-02 福建福思特阀门集团有限公司 Safe power-driven pressure releasing and holding valve
CN202510785U (en) * 2012-03-29 2012-10-31 天正阀门有限公司 High-temperature high-pressure pneumatic control automatic pressure release valve
CN203413197U (en) * 2013-08-16 2014-01-29 湖北泰和石化设备有限公司 Self-reliance pilot-operated type flow control valve

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Publication number Priority date Publication date Assignee Title
CN108386583A (en) * 2018-03-09 2018-08-10 佛山市骏渔信息科技有限公司 A kind of relief valve applied widely

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