CN202074089U - Ultra-high pressure proportional pressure-reducing valve - Google Patents

Ultra-high pressure proportional pressure-reducing valve Download PDF

Info

Publication number
CN202074089U
CN202074089U CN2011201367664U CN201120136766U CN202074089U CN 202074089 U CN202074089 U CN 202074089U CN 2011201367664 U CN2011201367664 U CN 2011201367664U CN 201120136766 U CN201120136766 U CN 201120136766U CN 202074089 U CN202074089 U CN 202074089U
Authority
CN
China
Prior art keywords
pressure
pressure chamber
valve
rod
liquid outlet
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
CN2011201367664U
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 CN2011201367664U priority Critical patent/CN202074089U/en
Application granted granted Critical
Publication of CN202074089U publication Critical patent/CN202074089U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model discloses an ultra-high pressure proportional pressure-reducing valve which comprises a valve block and a valve rod, wherein a pressure chamber is arranged inside the valve block, a bolt hole is arranged at the top of the valve block, the valve rod is hermetically arranged in the pressure chamber of the valve block through a bolt and a seal ring A, a liquid inlet hole and a liquid outlet hole are arranged on the valve block, the pressure chamber is composed of upper, middle and lower round holes to form a step shape, a throttling opening is arranged at the position where the liquid inlet hole is communicated with the pressure chamber, the valve rod is formed by fixedly connecting of an upper rod and a lower rod, the diameter of the upper rod is matched with the internal diameter of the middle round hole of the pressure chamber, the diameter of the lower rod is matched with the internal diameter of the lower round hole of the pressure chamber, the lower end of the lower rod is matched with the throttling opening, the upper end of the upper rod is connected with a spring in a sleeving way, the spring is positioned in the upper round hole of the pressure chamber, a pressing block is fixed at the top end of the upper rod, a channel is arranged in the valve block, one end of the channel is communicated with the liquid outlet hole, the other end of the channel is communicated with the upper round hole of the pressure chamber, and a throttling core is arranged on the channel. The pressure-reducing valve has high working pressure and long service life, and leads the pressure relief process to be gradual and at uniform speed.

Description

The ultrahigh pressure Proprutioning pressure reducing valve
Technical field
The utility model relates to a kind of reduction valve, particularly a kind of ultrahigh pressure Proprutioning pressure reducing valve.
Background technique
At present domestic and even in the world, the high-pressure pressure-reducing valve that is used for actual use, maximum working (operation) pressure (MWP) is basically all below 35MPa, output flow is less, and the working pressure of existing reduction valve is low, can not satisfy more than the 35MPa, even the decompression of the Superhigh Pressure Hydraulic System of hundreds of MPa, make the working life of the pressure-relief valve in the Superhigh Pressure Hydraulic System short, when ultrahigh pressure, stress-relief process can not be gently at the uniform velocity realization control automatically.
Summary of the invention
The purpose of this utility model just is to provide a kind of working pressure height, and the life-span is long, and stress-relief process is at the uniform velocity ultrahigh pressure Proprutioning pressure reducing valve gently.
To achieve these goals, the technical solution adopted in the utility model is such: ultrahigh pressure Proprutioning pressure reducing valve of the present utility model, comprise valve piece and valve rod, valve piece inside is provided with pressure chamber, valve piece top is provided with screw, screw communicates with pressure chamber, valve rod is arranged in the pressure chamber of valve piece by bolt and seal ring A sealing, the valve piece is provided with inlet opening and liquid outlet opening, inlet opening and liquid outlet opening all communicate with pressure chamber, described pressure chamber is by last, in, following three circular holes are from large to small formed and are ladder-type, described inlet opening is provided with restriction with the pressure chamber place of connection, described valve rod is formed by fixedly connecting by upper boom and lower beam, the internal diameter of circular hole is complementary in the diameter of upper boom and the pressure chamber, the internal diameter of circular hole is complementary under the diameter of lower beam and the pressure chamber, the lower end and the restriction of lower beam are complementary, upper boom upper end socket one spring, spring is positioned at the last circular hole of pressure chamber, a briquetting is fixed on the upper boom top, also be provided with passage in the valve piece, passage one end communicates with liquid outlet opening, and with liquid outlet opening on same horizontal plane, the other end communicates with the last circular hole of pressure chamber and the close bolt in joint, also is provided with the throttling core on the passage.
As preferably, described lower beam is provided with seal ring B.
As preferably, described restriction is the conical surface or spheric structure.
Compared with prior art, advantage of the present utility model is: after container inner pressure was reduced pressure by a certain percentage, highly pressurised liquid unloaded oil sump tank through the pressure-relief valve in the equipment again, can guarantee that stress-relief process is even gently continuous, and reduce the power of washing away greatly, thereby improve its working life the release valve member; This reduction valve Maximum operating pressure is consistent with ultrahigh pressure vessel pressure, can reach hundreds of Mpa, has been applied to simultaneously on the isostatic press 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 Proprutioning pressure reducing valve of the present utility model, comprise valve piece 1 and valve rod 2, valve piece 1 inside is provided with pressure chamber, valve piece 1 top is provided with screw, screw communicates with pressure chamber, valve rod 2 is arranged in the pressure chamber of valve piece 1 by bolt 8 and seal ring A9 sealing, valve piece 1 is provided with inlet opening 3 and liquid outlet opening 4, inlet opening 3 and liquid outlet opening 4 all communicate with pressure chamber, described pressure chamber is by last, in, following three circular holes are from large to small formed and are ladder-type, described inlet opening 3 is provided with restriction with the pressure chamber place of connection, described valve rod 2 is formed by fixedly connecting by upper boom and lower beam, the internal diameter of circular hole is complementary in the diameter of upper boom and the pressure chamber, the internal diameter of circular hole is complementary under the diameter of lower beam and the pressure chamber, the lower end and the restriction of lower beam are complementary, upper boom upper end socket one spring 5, spring 5 is positioned at the last circular hole of pressure chamber, and a briquetting is fixed on the upper boom top, also is provided with passage 6 in the valve piece 1, passage 6 one ends communicate with liquid outlet opening 4, and with liquid outlet opening 4 on same horizontal plane, the other end communicate with the last circular hole of pressure chamber and the joint near bolt 8, also be provided with throttling core 7 on the passage 6, described lower beam is provided with seal ring B10, and described restriction is the conical surface or spheric structure.
Superhigh pressure liquid enters from the inlet opening 3 of valve piece 1, the pressure of inlet opening 3 is P1, behind the restriction of valve piece 1 and valve rod 2, enter liquid outlet opening 4, the pressure of liquid outlet opening 4 is P2, the pressure liquid of liquid outlet opening 4 flows into the other end of valve rod 2 through passage 6 throttling cores 7, the big end of valve rod 2 is certain ratio K with the ratio of small end area, spring 5 produces cracking pressure P0, when liquid outlet opening 4 pressure during more than or equal to P1/K+P0, the restriction of valve piece 1 and valve rod 2 reduces even closes, liquid outlet opening 4 pressure maintain P1/K+P0, thereby realize proportional pressure reducing.When P1 equals P0 for a short time, by spring 5 valve rod 2 is opened entirely, at this moment liquid outlet opening 4 pressure equal inlet opening 3 pressure.

Claims (3)

1. ultrahigh pressure Proprutioning pressure reducing valve, comprise valve piece and valve rod, valve piece inside is provided with pressure chamber, valve piece top is provided with screw, screw communicates with pressure chamber, valve rod is arranged in the pressure chamber of valve piece by bolt and seal ring A sealing, the valve piece is provided with inlet opening and liquid outlet opening, inlet opening and liquid outlet opening all communicate with pressure chamber, it is characterized in that: described pressure chamber is by last, in, following three circular holes are from large to small formed and are ladder-type, described inlet opening is provided with restriction with the pressure chamber place of connection, described valve rod is formed by fixedly connecting by upper boom and lower beam, the internal diameter of circular hole is complementary in the diameter of upper boom and the pressure chamber, the internal diameter of circular hole is complementary under the diameter of lower beam and the pressure chamber, the lower end and the restriction of lower beam are complementary, upper boom upper end socket one spring, spring is positioned at the last circular hole of pressure chamber, a briquetting is fixed on the upper boom top, also be provided with passage in the valve piece, passage one end communicates with liquid outlet opening, and with liquid outlet opening on same horizontal plane, the other end communicate with the last circular hole of pressure chamber and the joint near bolt, also be provided with the throttling core on the passage.
2. ultrahigh pressure Proprutioning pressure reducing valve according to claim 1 is characterized in that: described lower beam is provided with seal ring B.
3. ultrahigh pressure Proprutioning pressure reducing valve according to claim 1 is characterized in that: described restriction is the conical surface or spheric structure.
CN2011201367664U 2011-05-04 2011-05-04 Ultra-high pressure proportional pressure-reducing valve Expired - Lifetime CN202074089U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201367664U CN202074089U (en) 2011-05-04 2011-05-04 Ultra-high pressure proportional pressure-reducing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201367664U CN202074089U (en) 2011-05-04 2011-05-04 Ultra-high pressure proportional pressure-reducing valve

Publications (1)

Publication Number Publication Date
CN202074089U true CN202074089U (en) 2011-12-14

Family

ID=45112192

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201367664U Expired - Lifetime CN202074089U (en) 2011-05-04 2011-05-04 Ultra-high pressure proportional pressure-reducing valve

Country Status (1)

Country Link
CN (1) CN202074089U (en)

Similar Documents

Publication Publication Date Title
CN204692595U (en) Industrial refrigeration right-angle type screw down nonreturn valve
CN204358193U (en) A kind of leading gas safety relief valve
CN202074089U (en) Ultra-high pressure proportional pressure-reducing valve
CN203845759U (en) Automatic-leveling hydraulic device of scissor lift
CN203264104U (en) Valve core bottle valve of air fire extinguisher
CN205918670U (en) Beat sign indicating number hydraulic press hydraulic control system
CN203241202U (en) Explosion-proof product hydraulic test device
CN202392214U (en) Piston-type cavitation-preventing adjustable reducing valve with large pressure difference
CN205384115U (en) Pressure boost liquid pump in succession pressurizes
CN203836304U (en) High-pressure safety pilot valve
CN205155542U (en) Modified torch gas divides fluid reservoir to press liquid system
CN201043451Y (en) Hydraulic cylinder supercharging device of blowout preventer
CN202371285U (en) Diaphragm type anti-cavitation and high-pressure-difference adjustable pressure-reducing valve
CN108488400A (en) Pilot-operated type pressure limiting preliminary filling valve arrangement
CN204628666U (en) Balance back pressure type explosion needle-valve
CN204647841U (en) Indoor pressurized gas preparing apparatus
CN203906415U (en) Supercharger
CN204357815U (en) Proportional pressure control valve
CN103071268A (en) High-pressure sprinkler water control valve
CN208058080U (en) A kind of pressure relief device
CN102434691A (en) Ultrahigh-pressure safety valve
CN202629086U (en) Discharging regulating valve
CN208686685U (en) A kind of novel energy-conserving rapid forge machine hydraulic system
CN202250797U (en) Novel oil distribution valve for ultrahigh pressure radial plunger pump
CN202116273U (en) Vacuum filtration output system

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20111214