CN202056129U - Ultrahigh pressure relief valve - Google Patents

Ultrahigh pressure relief valve Download PDF

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Publication number
CN202056129U
CN202056129U CN2011201368671U CN201120136867U CN202056129U CN 202056129 U CN202056129 U CN 202056129U CN 2011201368671 U CN2011201368671 U CN 2011201368671U CN 201120136867 U CN201120136867 U CN 201120136867U CN 202056129 U CN202056129 U CN 202056129U
Authority
CN
China
Prior art keywords
pressure
valve
cavity
valve rod
screw
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.)
Expired - Lifetime
Application number
CN2011201368671U
Other languages
Chinese (zh)
Inventor
卫焱
邓锡
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.)
SICHUAN BAIRUILONG MACHINERY EQUIPMENT CO LTD
Original Assignee
SICHUAN BAIRUILONG MACHINERY EQUIPMENT 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.)
Filing date
Publication date
Application filed by SICHUAN BAIRUILONG MACHINERY EQUIPMENT CO LTD filed Critical SICHUAN BAIRUILONG MACHINERY EQUIPMENT CO LTD
Priority to CN2011201368671U priority Critical patent/CN202056129U/en
Application granted granted Critical
Publication of CN202056129U publication Critical patent/CN202056129U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an ultrahigh pressure relief valve, which comprises a valve block. The upper end and the lower end of the valve block are provided with screw holes respectively. A pressure adjusting cavity is formed by connecting the upper portion of the valve block through a screw in sealing mode, an air exhausting cavity is arranged in the middle of the valve block, and an air inlet cavity is formed by connecting the lower portion in sealing mode through a plug screw. A liquid inlet hole and a liquid outlet hole are arranged on the valve block, a valve rod is arranged inside the air exhausting cavity, two ends of the valve rod respectively extend into the pressure adjusting cavity and the air inlet cavity, a pressing block is arranged at the lower end of the screw, and parallel springs are arranged between the pressing block and the upper end of the valve rod. Cross section area of the upper end of the valve rod is larger than that of the lower end of the valve rod, a spool is arranged at the lower end of the valve rod, a return spring is arranged between the spool and the plug screw, and a pressure device for measuring pressure of the pressure adjusting cavity is arranged on the valve block. The pressure device is composed of a pressure sensor, a pressure gauge and a pressure switch, the pressure sensor and the pressure gauge are connected with the pressure adjusting cavity through a channel, and a throttle core is arranged on the channel. The relief valve is long in service life, and automatic gradual control which is uniform in speed can be realized during pressure relief.

Description

The ultrahigh pressure reduction valve
Technical field
The utility model relates to a kind of reduction valve, particularly a kind of ultrahigh pressure reduction valve.
Background technique
At present domestic and even in the world, be used for the high-pressure pressure-reducing valve of actual use, all below 35MPa, output flow is less, and the working life of existing reduction valve is shorter basically for maximum working (operation) pressure (MWP), can not be gently in stress-relief process at the uniform velocity realization control automatically.
Summary of the invention
The purpose of this utility model just is a kind of long service life is provided, can be gently during release at the uniform velocity the realization ultrahigh pressure reduction valve of control automatically.
To achieve these goals, the technical solution adopted in the utility model is such: ultrahigh pressure reduction valve of the present utility model, comprise the valve piece, on the valve piece, the lower end is respectively equipped with screw, valve piece top is tightly connected by screw and forms a pressure regulating cavity, the middle part is provided with exhaust cavity, the bottom is tightly connected by plug screw and forms an air-inlet cavity, pressure regulating cavity, exhaust cavity and air-inlet cavity communicate, the valve piece is provided with inlet opening and liquid outlet opening, inlet opening communicates with air-inlet cavity, liquid outlet opening communicates with exhaust cavity, be provided with valve rod in the exhaust cavity, the valve rod two ends extend to respectively in pressure regulating cavity and the air-inlet cavity, described screw lower end is provided with briquetting, between briquetting and valve rod upper end portion, be provided with parallel spring, the cross-section area of described valve rod upper end is greater than the cross-section area of lower end, the valve rod lower end is provided with a spool, one Returnning spring is set between spool and plug screw, also be provided with a pressure unit that is used to test pressure regulating cavity on the described valve piece, pressure unit is by pressure transducer, pressure gauge and pressure switch are formed, and pressure transducer is connected with pressure regulating cavity by passage with pressure gauge, also is provided with a throttling core on the passage.
As preferably, have a through hole on the described plug screw, through hole communicates with air-inlet cavity.
As preferably, be provided with seal ring A on the described valve rod, the lower end is provided with seal ring B.
Compared with prior art, advantage of the present utility model is: by after reducing pressure, highly pressurised liquid unloads oil sump tank through pressure-relief valve again with container inner pressure, can guarantee that stress-relief process is even gently continuous, and reduce the power of washing away to the release valve member greatly, thereby improve its working life; This reduction valve Maximum operating pressure is consistent with ultrahigh pressure vessel pressure, can reach hundreds of Mpa, also is applied to simultaneously on the isostatic press equipment of my company's production.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, ultrahigh pressure reduction valve of the present utility model, comprise valve piece 4, on the valve piece 4, the lower end is respectively equipped with screw, valve piece 4 tops are tightly connected by screw 15 and form a pressure regulating cavity, the middle part is provided with exhaust cavity, the bottom is tightly connected by plug screw 1 and forms an air-inlet cavity, pressure regulating cavity, exhaust cavity and air-inlet cavity communicate, valve piece 4 is provided with inlet opening 5 and liquid outlet opening 12, inlet opening 5 communicates with air-inlet cavity, liquid outlet opening 12 communicates with exhaust cavity, be provided with valve rod 11 in the exhaust cavity, valve rod 11 two ends extend to respectively in pressure regulating cavity and the air-inlet cavity, described screw 15 lower ends are provided with briquetting 14, between briquetting 14 and valve rod 11 upper end portions, be provided with parallel spring 13, the cross-section area of described valve rod 11 upper ends is greater than the cross-section area of lower end, valve rod 11 lower ends are provided with a spool 3, one Returnning spring 2 is set between spool 3 and plug screw 1, Returnning spring 2 is by the control of hydraulic oil control mode, also be provided with a pressure unit that is used to test pressure regulating cavity on the described valve piece 4, pressure unit is by pressure transducer 8, pressure gauge 10 and pressure switch 9 are formed, pressure transducer 8 is connected with pressure regulating cavity by passage 6 with pressure gauge 10, also be provided with a throttling core 7 on the passage 6, have a through hole 16 on the described plug screw 1, through hole 16 communicates with air-inlet cavity, described valve rod 11 upper ends are provided with seal ring A, and the lower end is provided with seal ring B.
Superhigh pressure liquid enters from the inlet opening 5 of valve piece 4 or the through hole 16 of plug screw 1, restriction through valve piece 4 and throttling core 7 enters liquid outlet opening 12, liquid outlet opening 12 pressure liquid flow into decompression feedback pressure regulating cavity through passage 6 throttling cores 7, valve rod 11 bears the pressure of power F1 upwards for the area S liquid outlet opening 12 of decompression feedback pressure regulating cavity, the downward force F2 that screw 15 is set up by briquetting 14, spring handle passes to valve rod 11, when F1>F2, valve rod 11 moves upward, restriction reduces even closes, thereby realizes the decompression of liquid outlet opening 12.Adjusting screw 15 changes the size of F2, thereby changes the size of liquid outlet opening 12 pressure.By pressure transducer 8 force value behind the system decompression is passed to the electrical equipment operating table, can observe prison and show, also can from pressure gauge 10, directly read numerical value simultaneously.

Claims (3)

1. ultrahigh pressure reduction valve, comprise the valve piece, on the valve piece, the lower end is respectively equipped with screw, valve piece top is tightly connected by screw and forms a pressure regulating cavity, the middle part is provided with exhaust cavity, the bottom is tightly connected by plug screw and forms an air-inlet cavity, pressure regulating cavity, exhaust cavity and air-inlet cavity communicate, the valve piece is provided with inlet opening and liquid outlet opening, inlet opening communicates with air-inlet cavity, and liquid outlet opening communicates with exhaust cavity, is provided with valve rod in the exhaust cavity, the valve rod two ends extend to respectively in pressure regulating cavity and the air-inlet cavity, described screw lower end is provided with briquetting, is provided with parallel spring between briquetting and valve rod upper end portion, it is characterized in that: the cross-section area of described valve rod upper end is greater than the cross-section area of lower end, the valve rod lower end is provided with a spool, one Returnning spring is set between spool and plug screw, also is provided with a pressure unit that is used to test pressure regulating cavity on the described valve piece, pressure unit is by pressure transducer, pressure gauge and pressure switch are formed, pressure transducer is connected with pressure regulating cavity by passage with pressure gauge, also is provided with a throttling core on the passage.
2. ultrahigh pressure reduction valve according to claim 1 is characterized in that: have a through hole on the described plug screw, through hole communicates with air-inlet cavity.
3. ultrahigh pressure reduction valve according to claim 1 is characterized in that: described valve rod upper end is provided with seal ring A, and the lower end is provided with seal ring B.
CN2011201368671U 2011-05-04 2011-05-04 Ultrahigh pressure relief valve Expired - Lifetime CN202056129U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201368671U CN202056129U (en) 2011-05-04 2011-05-04 Ultrahigh pressure relief valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201368671U CN202056129U (en) 2011-05-04 2011-05-04 Ultrahigh pressure relief valve

Publications (1)

Publication Number Publication Date
CN202056129U true CN202056129U (en) 2011-11-30

Family

ID=45016100

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201368671U Expired - Lifetime CN202056129U (en) 2011-05-04 2011-05-04 Ultrahigh pressure relief valve

Country Status (1)

Country Link
CN (1) CN202056129U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102996550A (en) * 2012-10-31 2013-03-27 无锡鸿声铝业有限公司 Controlled oil-intake pressure reducing valve of rubber molding equipment
CN102996544A (en) * 2012-10-31 2013-03-27 无锡鸿声铝业有限公司 Dual-oil-circuit pressure reducing valve of rubber molding equipment
CN105697454A (en) * 2014-11-27 2016-06-22 无锡市海骏液压机电设备有限公司 Pressure measurement device with pressure relief adjustment function for hydraulic cylinder
CN107269624A (en) * 2017-05-24 2017-10-20 南京理工大学 It is a kind of to realize the computational methods that valve element opens the throttling rod cutting depth of rule

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102996550A (en) * 2012-10-31 2013-03-27 无锡鸿声铝业有限公司 Controlled oil-intake pressure reducing valve of rubber molding equipment
CN102996544A (en) * 2012-10-31 2013-03-27 无锡鸿声铝业有限公司 Dual-oil-circuit pressure reducing valve of rubber molding equipment
CN102996550B (en) * 2012-10-31 2016-08-17 无锡鸿声铝业有限公司 A kind of rubber-moulding equipment controlled oil-feed air relief valve
CN105697454A (en) * 2014-11-27 2016-06-22 无锡市海骏液压机电设备有限公司 Pressure measurement device with pressure relief adjustment function for hydraulic cylinder
CN107269624A (en) * 2017-05-24 2017-10-20 南京理工大学 It is a kind of to realize the computational methods that valve element opens the throttling rod cutting depth of rule

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GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20111130