Modular differential pressure bottle valve
Technical field
The present invention relates to high pressure holding bottle apparatus field, relate to a kind of modular differential pressure bottle valve.
Background technology
At present, bottle valve traditional on market is mainly made up of valve body, piston, valve gap, gland and diaphragm of releasing, need when starting such bottle valve to rely on external force to puncture diaphragm of releasing, the gas upwards QI invigorating of the endoporus on piston base in bottle, endoporus QI invigorating speed is reduced owing to endoporus being provided with steel wire, QI invigorating speed is broken formation pressure difference much smaller than venting speed, piston two-way pressure balance, the piston of bottle valve moves thus discharges the medium in gas cylinder.Diaphragm structure is punctured owing to have employed, traditional bottle valve in use needs repeatedly to change diaphragm, use and maintenance process is more complicated, diaphragm produces gas leak after puncturing always, it is not easily controlled gas flow, cause the most unreliable of conventional bottles head valve, simultaneously because diaphragm is usually stainless steel material, just can puncture when needing external force bigger, when electromagnetic start uses normal coil, power demand is bigger, and suitable explosion-proof firing pin type trigger cannot be provided, in petrochemical industry, offshore oil or the occasion of other Dangerous Places required application explosion-proof type electromagnetic starter, conventional bottles head valve cannot be suitable for.And, Pressure gauge is generally assemblied on pneumatic head by traditional bottle valve, and compress gasket seal realization compression sealing through binding nut, connect or isolated pressure table by screwing or unclamping binding nut, it is contemplated that problems such as the sealing properties of pad, traditional bottle valve is often only suitable for when checking gas pressure of the inside of a bottle unclamping binding nut, screws the most always, Pressure gauge does not show force value with gas cylinder isolation, and this causes a certain degree of inconvenience to user in productive life.Simultaneously; explosion tap structure on traditional bottle valve is rupture disk and pad; protection is realized by compressing rupture disk and pad; in advance the medium in bottle is attached with other conveyance conduits owing to cannot realize during explosion; so directly can only release in this locality by the medium in bottle under extreme case, this measure easily causes steel cylinder storage place potential safety hazard and chemical contamination.Conventional bottles head valve there is also many places and uses the defect of sealing ring, typically at least needs to arrange 7 road sealing rings inside a conventional bottles head valve, and seal point causes leakage point many too much, is susceptible to gas leakage, and it was found that cannot Solve on site during gas leakage.Conventional bottles head valve does not has relevant interface connection monitoring device to monitor pressure of the inside of a bottle change yet, it is impossible to be applicable to stricter commercial production application.
Summary of the invention
It is an object of the invention to: the defect existed for above-mentioned conventional bottles head valve, it is provided that a kind of modular differential pressure bottle valve, use modular designs based on the miniature needle-valve of technical grade, can configure according to the demand of user and install, realizing multiple purpose, be difficult to reveal, maintenance updates convenient.
To achieve these goals, the technical scheme is that
A kind of modular differential pressure bottle valve, including valve body, it is arranged on the valve port of valve body side, and it is arranged on the piston of valve inner, it is characterized in that, it is provided above crown cap at valve body, inside top cap, it is provided with needle-valve on the top cavity of piston, the side of piston is provided with stria along cross-sectional direction, side at valve body, the just slot position to piston is provided with and takes gas plug, take and on gas plug, be provided with the plug screw adapted with stria specification, rupture disk unit it is provided with below the side of valve body, the base of piston arranges pore or opening is set, opening is provided with steel wire to reduce circulation aperture, below valve body, gas cylinder contact portion is provided with screw thread and sealing ring, wherein, monitor plug it is additionally provided with below the side of valve body, Pressure gauge plug, the side of valve body is arranged above electromagnetic valve plug.
Described monitor plug, electromagnetic valve plug, Pressure gauge plug all use needle-valve module to replace, and described needle-valve module includes needle-valve and needle-valve module body.
As a kind of preferred version, the needle-valve module of the present invention can be combined with thimble module, and thimble module includes thimble and thimble module body, and thimble module can screw in during use needle-valve module, needle-valve is backed down by thimble, and the gas in gas cylinder can be made to be passed in the cavity of thimble module.
As a kind of preferred version, the rupture disk unit of the present invention includes explosion plug and explosion plug screw.
As a kind of preferred version, an O RunddichtringO it is horizontally arranged with below the top cap of the present invention, the upper end of described piston is vertically provided with the 2nd O RunddichtringO, and the lower end of piston is horizontally arranged with the 3rd O RunddichtringO, and piston bottom end is vertically provided with the 4th O RunddichtringO.
As a kind of preferred version, between piston and the top cap of the present invention, it is additionally provided with spring.
As a kind of preferred version, the manufacture material of the bottle valve of the present invention can be carbon steel, copper alloy or rustless steel.
Alternatively, valve body and the valve port of the bottle valve of the present invention can use one piece casting or split air conditioner processing mode manufacture.
Owing to have employed above technical scheme, the invention has the beneficial effects as follows:
Compared with conventional bottles head valve, bottle valve of the present invention can realize several functions, can coordinate and realize that anti-explosion is electromagnetic starts, pressure of the inside of a bottle monitors, show pressure of the inside of a bottle for a long time, Pressure gauge, electromagnetic valve and the monitor that adaptation is specified, and electromagnetic valve and monitor are changed in medium, replacing Pressure gauge and needle-valve, detection in the supplementary bottle in the scene that realizes, water conservancy diversion etc. after explosion, substantially increase the suitability of bottle valve and safeguard renewal convenience, and in bottle valve of the present invention release bottle, during article, ejected matter is uniform, uses reliable.
Accompanying drawing explanation
Fig. 1 is the front cut-away view of the present invention.
Fig. 2 is the side sectional view of the present invention.
Fig. 3 is needle-valve module sectional view.
Fig. 4 is thimble module sectional view.
Fig. 5 is rupture disk unit sectional view.
Labelling in figure: 1-valve body, 2-valve port, 3-top cap, 4-needle-valve, 5-piston, 6-base, 7-monitor plug, 8-electromagnetic valve plug, 9-Pressure gauge plug, 10-rupture disk unit, 11-takes gas plug, 12-needle-valve, 13-needle-valve module body, 14-thimble, 15-thimble module body, 16-explosion plug, 17-explosion plug screw, 18-the oneth O RunddichtringO, 19-the 2nd O RunddichtringO, 20-the 3rd O RunddichtringO, 21-the 4th O RunddichtringO
Detailed description of the invention
Embodiment 1:
nullWith reference to Fig. 1、Fig. 2、Fig. 3、Fig. 4、Fig. 5,Modular differential pressure bottle valve of the present invention,Including valve body 1、It is arranged on the valve port 2 of valve body 1 side,And it is arranged on the piston 5 within valve body 1,It is characterized in that,It is provided above crown cap 3 at valve body 1,Top cap 3 is internal、It is provided with needle-valve 4 on the top cavity of piston 5,The side of piston 5 is provided with stria along cross-sectional direction,Side at valve body 1、The just slot position to piston 5 is provided with and takes gas plug 11,Take and on gas plug 11, be provided with the plug screw adapted with stria specification,Rupture disk unit 10 it is provided with below the side of valve body 1,The base 6 of piston 5 arranges pore or opening is set,Opening is provided with steel wire to reduce circulation aperture,Below valve body 1, gas cylinder contact portion is provided with screw thread and sealing ring,Wherein,Monitor plug 7 it is additionally provided with below the side of valve body 1、Pressure gauge plug 9,The side of valve body 1 is arranged above electromagnetic valve plug 8,Described monitor plug 7、Electromagnetic valve plug 8、Pressure gauge plug 9 all uses needle-valve module to replace,Described needle-valve module includes needle-valve 12 and needle-valve module body 13.The needle-valve module of the present invention can be combined with thimble module, described thimble module includes thimble 14 and thimble module body 15, in order to make the gas in gas cylinder be passed in the cavity of thimble module, the rupture disk unit 10 of the present invention includes explosion plug 16 and explosion plug screw 17, it is horizontally arranged with an O RunddichtringO 18 below the top cap 3 of the present invention, the upper end of piston 5 is vertically provided with the 2nd O RunddichtringO 19, the lower end of piston 5 is horizontally arranged with the 3rd O RunddichtringO 20, piston 5 bottom is vertically provided with the 4th O RunddichtringO 21, the manufacture material of bottle valve of the present invention is carbon steel, the valve body of bottle valve and valve port use one piece casting.
First bottle valve of the present invention is connected on gas cylinder by bottom thread, by external air source pressurization and the opening regulation effect of piston base 6, piston 5 is compressed to bottom, the gentle pressure of the inside of a bottle of piston 5 upper cavity balances, again through the 3rd O RunddichtringO the 20, the 4th O RunddichtringO 21 twice isolating seal, serve the effect closing bottle valve.
In use; the thimble that would generally take manual starter, air starter or motor starter clashes into; thimble moves down the valve rod acting on needle-valve 4; needle-valve 4 is opened; cavity and ft connection above piston 5; produce slowly venting; owing to arranging opening on base 6; and opening is provided with steel wire to reduce circulation aperture; QI invigorating speed below piston 5 is lost heart speed less than top; piston 5 is upwards moved under the effect of pressure difference, finally opens valve port 2, and in bottle, gas and medium spray through valve port 2.
When needs use Pressure gauge to check pressure of the inside of a bottle, Pressure gauge is connected through needle-valve module and miniature thimble with valve body, and when screwing Pressure gauge, Pressure gauge connects the built-in thimble of end and backs down needle-valve 12, in bottle, medium connects with Pressure gauge, it is achieved force value in long-term display bottle.When Pressure gauge be damaged need to change time, Pressure gauge is unscrewed, its interior miniature thimble no longer acts on needle-valve 12, needle-valve module self-closed, does not results in gas leak, is connected use with miniature thimble and needle-valve module again after changing Pressure gauge.
When needs use pressure monitor, the connection end of thimble module with monitor can be directly connected to, it is also possible to by metal tube and high-pressure hose and monitor joint compact siro spinning technology.When being screwed with the needle-valve module replacing monitor plug 7 by thimble module, thimble 14 backs down needle-valve 12, and in bottle, medium connects with monitor, it is achieved monitored for prolonged periods of time pressure of the inside of a bottle value.When monitor be damaged need to change time, first thimble module is unscrewed, in it, thimble 14 no longer acts on needle-valve 12, needle-valve module self-closed, does not results in gas leak, is connected use again with thimble module after changing monitor.Easily being realized installation and removal by this kind of mode, present invention is particularly suitable for the explosion-proof type pressure monitor that overall dimensions is bigger, maintenance is convenient and swift.
When special occasions needs to use electromagnetic valve to start or explosion-proof type electromagnetic valve starts, the present invention is equally applicable, the joint of electromagnetic valve is connected with thimble module, thimble module is screwed in the needle-valve module that substituted for electromagnetic valve plug 8 again, thimble 14 in thimble module acts on needle-valve 12, needle-valve is opened, medium and electromagnetic valve inner space in bottle.When electromagnetic valve is for cutting out, bearing high pressure, when providing actuating signal, electromagnetic valve is opened, and valve pocket pressure reduces rapidly with aerofluxus, and bottle valve is opened.When electromagnetic valve needs regular maintenance, unscrew thimble module needle-valve 12 and i.e. close, now electromagnetic valve can be carried out maintenance work.
When needs carry out diaphragm explosion with bottle of releasing in material time, the present invention can select this locality to release or be guided to safety zone to release as required.When explosion plug 16 be spun on explosion plug screw 17 do not hinder release time, i.e. explosion plug screw 17 plane is concordant with explosion plug 16 outer face, and in bottle, medium can realize this locality and release by the aperture on explosion plug screw 17.When explosion plug screw 17 is directly connected to pipe joint, i.e. explosion plug 16 is replaced by pipeline nipple and is connected with bleeder pipe terminal.This pipe joint being threaded to explosion plug screw 17 thread root, blocks aperture of releasing thereon, medium of releasing can be guided to safety zone by pipeline and discharge.
nullOwing to the top of the present invention have employed integral design,And reinforced by two seals circle,So the top of the present invention occurs gas leakage probability the least,Usually piston 5 lower end causes gas leakage owing to O or needle-valve damage under relatively small probability,Need to change element and to when carrying out QI invigorating in bottle,First the plug screw taken on gas plug 11 can be screwed in the stria on piston 5 side,Lock piston 5 is no longer moved,Then the element of damage is replaced,The plug screw taken on gas plug 11 is screwed out stria,Then the breather line of thimble module with on-the-spot QI invigorating gas cylinder is connected,It is connected with modular differential pressure bottle valve of the present invention through top cap 3 hickey or electromagnetic valve plug 8,Carry out slow QI invigorating,When gas pressure of the inside of a bottle reaches top and the bottom pressure balance through the opening of base 6,After Pressure gauge confirms to reach predetermined value,The plug screw taken on gas plug 11 is screwed out stria,QI invigorating terminates.
Bottle valve of the present invention can realize several functions, can coordinate and realize that anti-explosion is electromagnetic starts, pressure of the inside of a bottle monitors, show pressure of the inside of a bottle for a long time, and realize scene replacing Pressure gauge, water conservancy diversion etc. after explosion, substantially increase the suitability of bottle valve and safeguard renewal convenience, and in bottle valve of the present invention release bottle, during article, ejected matter is uniform, uses and installs reliably.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.