CN103470829A - Direct-viewed-pointer pressure relief valve capable of presetting opening pressure - Google Patents
Direct-viewed-pointer pressure relief valve capable of presetting opening pressure Download PDFInfo
- Publication number
- CN103470829A CN103470829A CN2013104278435A CN201310427843A CN103470829A CN 103470829 A CN103470829 A CN 103470829A CN 2013104278435 A CN2013104278435 A CN 2013104278435A CN 201310427843 A CN201310427843 A CN 201310427843A CN 103470829 A CN103470829 A CN 103470829A
- Authority
- CN
- China
- Prior art keywords
- pressure
- pointer
- valve body
- valve
- pressure relief
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000005336 cracking Methods 0.000 claims description 18
- 230000006837 decompression Effects 0.000 claims description 18
- 241000669003 Aspidiotus destructor Species 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Safety Valves (AREA)
Abstract
The invention discloses a direct-viewed-pointer pressure relief valve capable of presetting opening pressure. The pressure relief valve comprises a lower valve body (1), wherein the middle interior of the lower valve body (1) contains a sealing seat (3), a valve stem (4), a valve-stem O-shaped ring (5) and a valve chamber (18). The pressure relief valve further comprises an upper valve body (9), wherein pressure regulating springs (10) and a pointer (15) are both located inside the upper valve body; a pressure regulating screw (12) protrudes outwards through the upper valve body (9), is locked by a lock nut (14) and is covered by a guarding cover (13). The pressure relief valve is characterized in that the valve stem (4) is ball-headed cylindrical and is enabled to form a piston, so that any influence on the valve stem (4) cannot be caused regardless of any change of the internal pressure of the valve chamber (18), and the stress, from the pressure regulating springs (10), on the valve stem (4), which forms the piston, directly forms the opening pressure of the pressure relief valve; the pointer (15) is arranged on a spring pad (11) and is driven to rotate by using the pressure regulating springs. The pressure relief valve is simple in structure, low in cost and small in size, and an operator can predict pressure magnitude so as to reach the aim of correct operation.
Description
technical field:
The present invention relates to a kind of valve, particularly can a kind ofly can directly show pressure, directly pipeline, fluid container pressure are presetted the Decompression valves of cracking pressure.
background technique:
Have the structure of oil, gas two-fluid connecting tube in " production tree " structure of oil, gas field oil recovery well, and in this structure, the air pressure in tracheae must preset when the pressure of the oil pressure higher than in oil pipe, just to the pressed gas that injects tracheae in oil pipe.And in oil pipe, fluid at all never allows to enter into tracheae; The second, likely stage of development variation of the oil pressure in the oil pipe of a certain " production tree ", at this moment often adjusted the cracking pressure that is arranged on the Decompression valves on tracheae with regard to needing; The 3rd, in an oil-producing region, oil well is numerous, and the oil pressure of each oil well is different, so just need to a kind ofly can, according to various different pressures requirements, can carry out the simple and convenient Decompression valves of setting accurately cracking pressure to the Decompression valves be arranged on tracheae at any time.
On present market, common Decompression valves has two kinds, and a kind of is fixing cracking pressure, by the manufacturer, before dispatching from the factory, is set up; A kind of cracking pressure of regulating, but must coordinate at the scene pressure gauge, according to the actual pressure of pipeline, container, set up.Obviously, even the Decompression valves of this adjustable cracking pressure carries out scene in " production tree " structure of oil recovery well, set up, be also bother very much, very difficult.
Valve rod in general pressure-relief valve structure is all to adopt steel ball basically, and the pressure in the valve pocket of this internal discharging type Decompression valves also produces the downward power of closing to steel ball, and this power is unmeasured, this is difficult to be presetted with regard to the cracking pressure that makes general Decompression valves.
summary of the invention:
The purpose of this invention is to provide and a kind ofly can directly show pressure, directly pipeline, fluid container pressure are presetted the Decompression valves of cracking pressure.
For achieving the above object, the technical solution used in the present invention is:
Pointer is looked at predeterminable cracking pressure Decompression valves straight, comprising: lower valve body 1; In described lower valve body 1, inside comprises sealing seat 3, valve rod 4, valve rod O shape circle 5, valve pocket 18; Also comprise upper valve body 9, pressure adjusting spring 10, pointer 15 all are positioned at upper valve body inside; Voltage regulation screw 12 is outwards outstanding by upper valve body 9, by locking nut 14 lockings, and is insured and covers 13 and cover.
Described valve rod 4, i.e. flap, cylindrical for bulb, and make it to form piston; Like this, can not produce any impact to valve rod 4 in any case the pressure in valve pocket 18 changes also, and the suffered power from pressure adjusting spring 10 of valve rod 4 of formation piston just directly forms the cracking pressure of Decompression valves.
Described pointer (15) is on spring pad 11, and offered an elongate slots window 17 on upper valve body 9, pointer 15 can be moved up and down at groove, a transparent scale film 16 has been set pointer groove window 17 is outer, coordinate pointer 15 to move up and down, can show presetted cracking pressure.Simultaneously, also can prevent that sand and dust, rainwater from entering upper valve body 9 and causing the infringement of Decompression valves.
The present invention is simple in structure, cost is low, volume is little, and the operator can predict the pressure size at any time, thereby reaches the purpose of proper operation.
the accompanying drawing explanation:
Fig. 1 is schematic appearance of the present invention;
Fig. 2 is sectional drawing of the present invention.
Mark in figure: lower valve body 1 sealing seat back-up ring 2 sealing seat 3 valve rod 4 valve rod O shapes are enclosed 5 valve rod guide pin bushing 6 valve rod back-up ring 7 lower spring pad 8 upper valve body 9 pressure adjusting spring 10 upper spring pad 11 voltage regulation screw 12 protecting cap 13 locking nut 14 pointer 15 transparent scale film 16 pointer groove window 17 valve pocket 18 sealing lead holes 19.
embodiment:
Pointer is looked at predeterminable cracking pressure Decompression valves straight, comprising: lower valve body 1; In described lower valve body 1, inside comprises sealing seat 3, valve rod 4, valve rod O shape circle 5, valve pocket 18; Also comprise upper valve body 9, pressure adjusting spring 10, spring pad 11, pointer 15 all are positioned at upper valve body inside; Voltage regulation screw 12 is outwards outstanding by upper valve body 9, by locking nut 14 lockings, and is insured and covers 13 and cover.
It is characterized in that: described valve rod 4 is cylindrical for bulb, and makes it to form piston; Like this, can not produce any impact to valve rod 4 in any case the pressure in valve pocket 18 changes also, and the suffered power from pressure adjusting spring 10 of valve rod 4 of formation piston just directly forms the cracking pressure of Decompression valves.
Described pointer (15) is on spring pad 11, and offered an elongate slots window 17 on upper valve body 9, pointer 15 can be moved up and down at groove, a transparent scale film 16 has been set pointer groove window 17 is outer, coordinate pointer 15 to move up and down, can show presetted cracking pressure.Simultaneously, also can prevent that sand and dust, rainwater from entering upper valve body 9 and causing the infringement of Decompression valves.
During work, rotation voltage regulation screw 14, pointer 15 is followed upper spring pad 11 and is moved up and down; On the pressure scale that pointer 15 is needed shown in stopping on transparent scale film 16.At this moment the power that the pressure that pressure adjusting spring 10 produces produces valve rod 4 is exactly the cracking pressure of the Decompression valves that presets.
Claims (1)
1. pointer is looked at predeterminable cracking pressure Decompression valves straight, it is characterized in that: comprise lower valve body (1); In described lower valve body (1), inside comprises sealing seat (3), valve rod (4), valve rod O shape circle (5), valve pocket (18); Also comprise upper valve body (9), pressure adjusting spring (10), pointer (15) all are positioned at upper valve body inside; Voltage regulation screw (12) is outwards outstanding by upper valve body (9), and by locking nut (14) locking, and the lid (13) that is insured covers; Described valve rod (4) is that bulb is cylindrical, and makes it to form piston; Described pointer (15) is on spring pad (11), and offered an elongate slots window (17) on upper valve body (9), pointer (15) can be moved up and down at groove, a transparent scale film (16) is set outside pointer groove window (17), coordinate pointer (15) to move up and down, can show presetted cracking pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104278435A CN103470829A (en) | 2013-09-21 | 2013-09-21 | Direct-viewed-pointer pressure relief valve capable of presetting opening pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104278435A CN103470829A (en) | 2013-09-21 | 2013-09-21 | Direct-viewed-pointer pressure relief valve capable of presetting opening pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103470829A true CN103470829A (en) | 2013-12-25 |
Family
ID=49795809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104278435A Pending CN103470829A (en) | 2013-09-21 | 2013-09-21 | Direct-viewed-pointer pressure relief valve capable of presetting opening pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103470829A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286914A (en) * | 2016-08-15 | 2017-01-04 | 赵士民 | A kind of aobvious pressure memory caution type relief valve |
| CN107289629A (en) * | 2017-07-17 | 2017-10-24 | 深圳市火王燃器具有限公司 | A kind of hutch water device for water circulating pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88212234U (en) * | 1988-03-04 | 1988-11-23 | 奚长寿 | Adjustable temp. and pressure valve for pressure cooker |
| JP2001065722A (en) * | 1999-08-24 | 2001-03-16 | Maruyama Mfg Co Ltd | Pressure regulating valve |
| JP2001065721A (en) * | 1999-08-31 | 2001-03-16 | Nabco Ltd | Pressure control valve and dehumidifier system of compressed air using it |
| CN201013995Y (en) * | 2007-03-26 | 2008-01-30 | 姜家麒 | Adjustable automatic water discharge regulation valve |
| CN102428253A (en) * | 2009-04-29 | 2012-04-25 | 布西鲁斯欧洲有限公司 | Pressure relief valve |
| CN203131138U (en) * | 2013-03-22 | 2013-08-14 | 胜利油田胜机石油装备有限公司 | Pressure regulating valve |
-
2013
- 2013-09-21 CN CN2013104278435A patent/CN103470829A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88212234U (en) * | 1988-03-04 | 1988-11-23 | 奚长寿 | Adjustable temp. and pressure valve for pressure cooker |
| JP2001065722A (en) * | 1999-08-24 | 2001-03-16 | Maruyama Mfg Co Ltd | Pressure regulating valve |
| JP2001065721A (en) * | 1999-08-31 | 2001-03-16 | Nabco Ltd | Pressure control valve and dehumidifier system of compressed air using it |
| CN201013995Y (en) * | 2007-03-26 | 2008-01-30 | 姜家麒 | Adjustable automatic water discharge regulation valve |
| CN102428253A (en) * | 2009-04-29 | 2012-04-25 | 布西鲁斯欧洲有限公司 | Pressure relief valve |
| CN203131138U (en) * | 2013-03-22 | 2013-08-14 | 胜利油田胜机石油装备有限公司 | Pressure regulating valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286914A (en) * | 2016-08-15 | 2017-01-04 | 赵士民 | A kind of aobvious pressure memory caution type relief valve |
| CN107289629A (en) * | 2017-07-17 | 2017-10-24 | 深圳市火王燃器具有限公司 | A kind of hutch water device for water circulating pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204226765U (en) | A kind of spring safety valve and Anesthesia machine | |
| CN103470829A (en) | Direct-viewed-pointer pressure relief valve capable of presetting opening pressure | |
| CN103291986A (en) | Directly-operated type reducing valve | |
| CN103362878B (en) | Adjustable volume diaphragm-type pulsation absorbs accumulator | |
| CN205533962U (en) | One -way adjustable damping ware | |
| CN203131138U (en) | Pressure regulating valve | |
| CN204717028U (en) | Pressure break ball screw flap type | |
| CN204420230U (en) | A kind of high-pressure solenoid valve of docking with pressure reducing regulator | |
| CN203823164U (en) | Pressure regulating valve | |
| CN103727256A (en) | Airtightness leakage quantity adjusting valve | |
| CN205859281U (en) | A kind of air relief valve | |
| CN213393720U (en) | Two-stage safety valve with real-time pressure monitoring function for fracturing pipeline | |
| CN104265933A (en) | Totally-closed anti-ageing corrosion-resistant and long-life ball valve | |
| CN205190764U (en) | Novel control pneumatic valve | |
| CN205172562U (en) | Dual range manometer automatic control valve | |
| CN206655855U (en) | A kind of inverse-proportion pressure reducing valve of hydraulic coupling control | |
| CN203051864U (en) | Sealing structure of safety valve | |
| CN203404449U (en) | Embedded type reducing valve of pressure meter | |
| CN203939470U (en) | A kind of down-hole frock pneumatic unit | |
| CN203131081U (en) | High-tightness flat gate valve | |
| CN206988439U (en) | Well head constant pressure switch controller | |
| CN201738875U (en) | Hyperpressure/pressure-loss pilot valve used for controlling safety block valve in petroleum gas well | |
| CN202371241U (en) | Safety valve | |
| CN105067183A (en) | Pressure measuring valve | |
| CN207197728U (en) | A kind of pressure gauge tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131225 |
|
| RJ01 | Rejection of invention patent application after publication |