CN102678984A - Differential pressure type automatic relief valve - Google Patents
Differential pressure type automatic relief valve Download PDFInfo
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- CN102678984A CN102678984A CN2011100551176A CN201110055117A CN102678984A CN 102678984 A CN102678984 A CN 102678984A CN 2011100551176 A CN2011100551176 A CN 2011100551176A CN 201110055117 A CN201110055117 A CN 201110055117A CN 102678984 A CN102678984 A CN 102678984A
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- cabin
- differential pressure
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Abstract
The invention relates to a differential pressure type automatic relief valve which is applicable to automatic adjustment of inner air pressure of a mining rescue capsule. A valve body of the differential pressure type automatic relief valve is provided with two gas chambers inside. One gas chamber is communicated with the interior of the mining rescue capsule, and the other gas chamber is connected with the outside of the mining rescue capsule. Under pressure difference of the two gas chambers, a deformable elastic plate between the two gas chambers is driven to deform elastically to drive a valve stem and a spool connected to the deformable elastic plate to reciprocate, so that open and close of the gas chambers are achieved, and release of high-pressure gas from inside of the capsule to the outside is achieved. The differential pressure type automatic relief valve has the advantages that the valve is simple and reasonable in structure and quick and convenient to mount, pressure relief is automatic and flexible, and the like.
Description
Technical field
The present invention relates to a kind of differential pressure type Decompression valves, relate in particular to a kind of structural type of differential pressure type automatic decompression valve, be specially adapted to the automatic adjusting of mining rescue capsule inner air pressure, belong to gas-pressure component manufacturing technology field.
Background technique
Be in the positive confinement state in the cabin in mining rescue capsule because during hedging, for satisfying hedging personnel's oxygen uptake needs, oxygen cylinder that has been equipped with in the cabin or oxygen generator must constantly provide the oxygen of needed by human body, thereby the air pressure in the cabin will constantly increase.For guaranteeing that the air pressure in the cabin is in normal state all the time; Existing mining rescue capsule is provided with cabin inner air pressure display list and manual Decompression valves; When the hedging personnel find that from air manometer air pressure in the cabin exceeds normal range (NR). can be through manual control Decompression valves to discharging air out of my cabin, thus the air pressure in the cabin is returned in the normal range (NR).Such controlling method is cumbersome and must arrange the special messenger to note the reading of air manometer at any time, and this has increased by one heavy psychological burden undoubtedly again for being in high-strung hedging personnel.Therefore it is necessary designing a kind of can self-relieving Decompression valves being used in the mining rescue capsule.
Summary of the invention
Can not self-regulating defective to present mining rescue capsule inner air pressure, the present invention provides a kind of differential pressure type automatic decompression valve, to realize the automatic adjusting purpose of mining rescue capsule inner air pressure.
To achieve these goals, the present invention takes following technological scheme to implement: it comprises a valve body, and the valve body outer upper ends is shaped on outside thread; Inside upper part is provided with cylindrical hole; The bottom is provided with bellmouth orifice, and sidewall is provided with an axial elongated orifices, and an end of this axial elongated orifices links to each other with the air chamber that piston surrounds with atmosphere, the other end and valve body out of my cabin; Also be provided with radially air outlet hole on the sidewall, radially gas communicates in an end and the cabin of air outlet hole, the other end links to each other with the air chamber that valve body and spool surround for this; Said cylindrical hole face and valve body upper-end surface intersect potted line; Two Spielpassung are in the valve body cylindrical hole and lay respectively at the radially guide sleeve of air outlet hole upper and lower, and the wall of last guide sleeve is provided with many axial vents; The valve rod of one Spielpassung in upper and lower guide sleeve; One piston; One trim ring; A plurality of fastening screw trip bolts, it is characterized in that said piston be one can deformation elastic plate, it presses through a trim ring and a plurality of fastening screw trip bolt and is sealed on the bottom plane of valve body bellmouth orifice; The upper end of said valve rod is provided with a cone table shape spool; The middle part is provided with fine thread; Be rotary with adjusting nut and fastening screw nut on the fine thread, be provided with a spring between adjusting nut and the last guide sleeve, stem lower portion is passed piston and is passed through backing plate, pad and fastening screw compression seal on piston.The pressure difference of the present invention through two air chambers of valve inner drives that but deformation between two air chambers is dull and stereotyped, and the elasticity sex change takes place, and makes axially reciprocating thereby drive valve rod, realizes the logical of two air chambers and closes, and reaches pressurized gas in the cabin to the purpose of pressure release out of my cabin.
Advantages such as that the present invention has is simple and reasonable, quick and easy for installation, pressure release is flexible automatically.
Description of drawings
Accompanying drawing 1 is master's sectional structure schematic representation of the present invention;
Accompanying drawing 2 is the present invention left side sectional structure schematic representation.
In attaching Fig. 1 and 2: guide sleeve on 1 valve body, 2 spools, 3 valve rods, 4,5 jump rings, 6 adjusting nuts, 7 star-like seal rings, 8 fastening screws, 9 rubber pistons, 10 fastening screw trip bolts, 11 pads, 12 trim rings, 13 backing plates, 14O RunddichtringO, 15 times guide sleeves, 16 fastening screw nuts, 17 air outlet holes, 18 springs, 19 elongated orifices
Embodiment
Like accompanying drawing 1, shown in 2; Upper outside at valve body 1 is provided with outside thread; Inside upper part is provided with cylindrical hole, and the bottom is provided with bellmouth orifice, and axial elongated orifices 19, air outlet hole 17 radially are set on the sidewall; And make that cylindrical hole and bellmouth orifice are coaxial to communicate, axially elongated orifices 19 from the upper-end surface of valve body 1 straight-through bellmouth orifice; The cylindrical hole face of valve body 1 and the intersection, upper-end surface of valve body 1 are ground to form potted line; Rubber piston 9 is pressed through trim ring 12 and fastening screw trip bolt 10 and is sealed on the inboard bottom plane of bellmouth orifice; Many axial vents are set on the wall of last guide sleeve 4; With last guide sleeve 4, down guide sleeve 15 Spielpassung in the cylindrical hole of valve body 1 and the upper and lower part that lays respectively at air outlet hole radially with jump ring 5 axially locating, and descending between guide sleeve 15 and the valve body 1 O RunddichtringO 14 is being set; Valve rod 3 Spielpassung in upper and lower guide sleeve 4 and 15, and are provided with star-like seal ring 7 between valve rod 3 and following guide sleeve 15; In the upper end of valve rod 2 cone table shape spool 2 is set; The middle part is provided with fine thread; Screw adjusting nut 6 and fastening screw nut 16 on the screw thread; Between the lower end of the upper end of adjusting nut 6 and last guide sleeve 4, spring 18 is set, and screws adjusting nut 6 and the precompression of spring 18 is adjusted in the scope of regulation again through fastening screw nut 16 and tight; The bottom of valve rod 3 is passed rubber piston 9 and gripped and be sealed on the rubber piston 9 through backing plate 13, pad 11 and fastening screw 8; So form an air chamber that surrounds between the frustum face, valve rod 3 of last plane, the spool 2 of cylindrical hole and last guide sleeve 4 in air chamber surrounding between the bottom plane, valve rod 3 of bellmouth orifice and rubber piston 9, time guide sleeve 15 in the valve body 1 and the valve body 1, wherein the former air chamber with communicate out of my cabin, link to each other in latter's air chamber and the cabin.On any wall of mining rescue capsule, load onto the present invention, and make bellmouth orifice on the valve body 1 in the cabin through the outside thread on the valve body 1.When the inside and outside gas pressure in cabin was in state of equilibrium, valve rod 3 was close on the potted line of valve body 1 at spool 2 conical surfaces of its upper end under the effect of spring 18 all the time, in the cabin, gas out of my cabin is isolated fully.When the oxygen cylinder in the cabin or oxygen generator provide oxygen in the cabin; Gas pressure in the cabin constantly raises thereupon; When this gas pressure that constantly raises can overcome the elastic force of spring 18; This gas pressure that constantly raises will be oppressed rubber piston 9 and heaved to the air chamber inner elastomeric at place, valve body 1 inside trumpet hole, and the air chamber gas at place, valve body 1 inside trumpet hole is discharged through axial elongated orifices 19, move upward thereby make rubber piston 9 drive valve rod 3; Frustum spool 2 on the valve rod 3 is thrown off with the potted line on the valve body 1; The air chamber here communicates thereupon with out of my cabin, and cabin inner high voltage gas passes through air outlet hole 17 on the valve body 1, goes up vent and the discharge of the sealed airspace on the potted line on guide sleeve 4 walls, and the air pressure in the cabin reduces.When the air pressure in the cabin with out of my cabin air pressure during near balance, valve rod 3 moves downward under the spring power effect of spring 18, comes back to original position, valve rod 3 drives frustum spools 2 and fits tightly on the potted line of valve body 1, the inside and outside gas in cabin is isolated once again.So never equilibrate to the constantly conversion automatically of relative equilibrium, realized that the air pressure in the mining rescue capsule is in the state of controlled range all the time.
Claims (2)
1. Y type differential pressure automatic decompression valve; It comprises a valve body, and the valve body outer upper ends is shaped on outside thread, and inside upper part is provided with cylindrical hole; The bottom is provided with bellmouth orifice; Sidewall is provided with an axial elongated orifices, and an end of said axial elongated orifices links to each other with the air chamber that piston surrounds with atmosphere, the other end and valve body out of my cabin, and sidewall is provided with radially air outlet hole; Gas communicates in one end of said radially air outlet hole and the cabin, the other end links to each other with the air chamber that valve body and spool surround, and cylindrical hole face and valve body upper-end surface intersect potted line; Two Spielpassung are in the valve body cylindrical hole and lay respectively at the radially guide sleeve of air outlet hole upper and lower, and the wall of last guide sleeve is provided with many axial vents; The valve rod of one Spielpassung in upper and lower guide sleeve; One piston; One trim ring; A plurality of fastening screw trip bolts, it is characterized in that said piston be one can deformation elastic plate, it presses through a trim ring and a plurality of fastening screw trip bolt and is sealed on the bottom plane of valve body inner bore: the upper end of said valve rod is provided with a cone table shape spool, and the bottom is connected with piston.
2. a kind of Y type differential pressure automatic decompression valve as claimed in claim 1 is characterized in that described valve rod middle part is provided with fine thread, is rotary with adjusting nut and fastening screw nut on the fine thread, is provided with a spring between adjusting nut and the last guide sleeve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2011100551176A CN102678984A (en) | 2011-03-05 | 2011-03-05 | Differential pressure type automatic relief valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011100551176A CN102678984A (en) | 2011-03-05 | 2011-03-05 | Differential pressure type automatic relief valve |
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CN102678984A true CN102678984A (en) | 2012-09-19 |
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CN2011100551176A Pending CN102678984A (en) | 2011-03-05 | 2011-03-05 | Differential pressure type automatic relief valve |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103016952A (en) * | 2012-12-29 | 2013-04-03 | 天台县铭通机械有限公司 | Automatic gas source distributor with safety function |
CN104422557A (en) * | 2013-08-30 | 2015-03-18 | 侨雄实业股份有限公司 | Pressure release valve device applicable to pressure gauge |
CN109186885A (en) * | 2018-10-16 | 2019-01-11 | 黄茴茴 | A kind of water-cooled machine air-leakage test instrument for battery production |
CN109269736A (en) * | 2018-10-16 | 2019-01-25 | 黄茴茴 | A kind of detection device of the water cooling motor housing convenient for conveying |
CN113730718A (en) * | 2021-08-13 | 2021-12-03 | 中国人民解放军火箭军特色医学中心 | Automatic pressurizing infusion device for emergency rescue |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2410508Y (en) * | 2000-02-02 | 2000-12-13 | 阜新化工设备有限责任公司 | Differential pressure regulator |
CN1918416A (en) * | 2004-02-05 | 2007-02-21 | 沃尔夫冈·福斯 | Pressure limiting valve with hydraulic sealing ring |
US20090126805A1 (en) * | 2005-06-16 | 2009-05-21 | Vladimir Olshanetsky | Double Check Valve for a Fuel System |
CN201672116U (en) * | 2010-05-05 | 2010-12-15 | 厦门市神手科技有限公司 | Safe valve |
CN202047860U (en) * | 2011-03-05 | 2011-11-23 | 江苏中煤机电科技有限公司 | Automatic Y-type differential pressure relief valve |
-
2011
- 2011-03-05 CN CN2011100551176A patent/CN102678984A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2410508Y (en) * | 2000-02-02 | 2000-12-13 | 阜新化工设备有限责任公司 | Differential pressure regulator |
CN1918416A (en) * | 2004-02-05 | 2007-02-21 | 沃尔夫冈·福斯 | Pressure limiting valve with hydraulic sealing ring |
US20090126805A1 (en) * | 2005-06-16 | 2009-05-21 | Vladimir Olshanetsky | Double Check Valve for a Fuel System |
CN201672116U (en) * | 2010-05-05 | 2010-12-15 | 厦门市神手科技有限公司 | Safe valve |
CN202047860U (en) * | 2011-03-05 | 2011-11-23 | 江苏中煤机电科技有限公司 | Automatic Y-type differential pressure relief valve |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103016952A (en) * | 2012-12-29 | 2013-04-03 | 天台县铭通机械有限公司 | Automatic gas source distributor with safety function |
CN104422557A (en) * | 2013-08-30 | 2015-03-18 | 侨雄实业股份有限公司 | Pressure release valve device applicable to pressure gauge |
CN109186885A (en) * | 2018-10-16 | 2019-01-11 | 黄茴茴 | A kind of water-cooled machine air-leakage test instrument for battery production |
CN109269736A (en) * | 2018-10-16 | 2019-01-25 | 黄茴茴 | A kind of detection device of the water cooling motor housing convenient for conveying |
CN113730718A (en) * | 2021-08-13 | 2021-12-03 | 中国人民解放军火箭军特色医学中心 | Automatic pressurizing infusion device for emergency rescue |
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Application publication date: 20120919 |