CN101210620A - Spring relaxation closed valve suspension combustion gas motor magnetic control safety valve - Google Patents
Spring relaxation closed valve suspension combustion gas motor magnetic control safety valve Download PDFInfo
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- CN101210620A CN101210620A CN 200610147872 CN200610147872A CN101210620A CN 101210620 A CN101210620 A CN 101210620A CN 200610147872 CN200610147872 CN 200610147872 CN 200610147872 A CN200610147872 A CN 200610147872A CN 101210620 A CN101210620 A CN 101210620A
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Abstract
The invention discloses a suspended-type combustible gas magnetic control safety valve capable of being closed upon spring relaxation, which comprises a magnetic field spring power source, a full-closed motor box, an electric helical transmission mechanism and a valve cover mechanism. The valve cover mechanism is suspended at the bottom of the full-closed motor box and is opened or closed under the action of a magnetic field force, so that a motor is arranged inside the full-closed motor box and completely and reliably isolated from a combustible gas passage. Additionally, the valve also has the advantages of large stroke of opening and closing the valve, less pressure loss, low failure rate and high promotion valve. The invention is mainly suitable for the use in pipelines and meters of combustible and explosive gases, particularly used as execution component in IC card gas meters and remote gas meters.
Description
Technical field
The invention belongs to combustion gas motor valve technology field, relate in particular to the fuel gas motor relief valve door that occasions such as a kind of pipeline at flammable explosive gas, measure meter are used.
Background technique
At present, the general combustion gas motor valve of Shi Yonging, be to be whole through coupler configuration by spool and valve body two big parts, but, in the IC-card gas meter, IC-card gas meter shell is regarded as valve body, its air outlet hole is considered as the valve body air outlet hole, the independent existing example that uses spool, in fact, the performance of spool, quality have become the key technology of structure combustion gas motor valve, and the technological scheme that adopts of spool mainly contains usually: transmission of spur gear tooth bar and screw drive, they comprise: motor case, motor are installed on the positioning plate, driving component, valve cover, Sealing etc.The valve of this type of spool construction, its valve cover and spur gear tooth bar or screw rod directly link, and motor connects with spur gear tooth bar or screw rod through speed change gear, and its working procedure is: under the drive of motor, through spur gear tooth bar or gear screw rod, the displacement of actuating valve door closure is finished out valve and is closed valve events.Because the valve cover of this class formation activity and spur gear tooth bar or screw rod, motor directly connects is integral body, therefore, seal approach is not enough to block fully the passage between motor and the combustion gas, so electrical spark that produces during machine operation, once contact with flammable explosive gas, very easily burn, explosive accident, the people life property safety is constituted a serious threat.Limited by the drive mechanism of such valve, it is shorter to open the Valve travel distance, the build-up of pressure loss ratio is bigger, because such valve cover swing degree when action is bigger, not only valve cover end face and valve air outlet hole end face form angle when closing valve, are not enough to both ends of the surface and fit like a glove again, air-tightness is relatively poor, and internal leakage very easily takes place, and " blocking " do not have the fault of complete opening or complete cut-off valve door closure easily, causes rate of fault higher.
Summary of the invention
The objective of the invention is to, provide a kind of and can effectively overcome above-mentioned defective, cut off the passage between motor and combustion gas fully, increase and open Valve travel, reduce pressure loss, improve valve cover action stability, reduce internal leakage and the valve of gas electric machine magnetic control safety that reduces rate of fault.
For achieving the above object, the present invention has adopted the valve of gas electric machine magnetic control safety of spring-relaxation-closing valve electric machine magnetic control spool technical construction, its technological scheme is a kind of spring-relaxation closed valve suspension combustion gas motor magnetic control safety valve, the Technical Architecture of its spool, see accompanying drawing 1 " spool technological scheme framework ", mainly by: a secondary magnet steel that there is a natural attraction between the sexes 10 is provided and contains the main magnet steel 3 that internal thread, outer wall are provided with main magnetic steel displacement guide rail 2, and a spring 9 is constructed to the power source mechanism of open and close valve; Provide an inwall to be provided with the main magnetic steel displacement case 5 and the adapter 11 of the secondary guide rail 4 of main magnetic steel displacement; Described main magnetic steel displacement case 5 and motor case 1 are configured to full closed electric machine case; Described motor 6 is installed on the positioning plate 7 and links with the screw-thread drive shaft 8 that screws in main magnet steel 3 and the secondary guide rail 4 of main magnetic steel displacement is configured to drive the motor screw-drive mechanism of main magnet steel 3 shift reciprocatelies jointly, be placed in the inner chamber of full closed electric machine case, the positioning plate 7 of fixed electrical machinery 6 can be installed in the junction of motor case 1 below and main magnetic steel displacement case 5; Described spring 9 movable ends are connected on the adapter 11, are configured to valve cover mechanism whole, that be synchronized with the movement jointly with secondary magnet steel 10, valve cover 12, are suspended on main magnetic steel displacement case 5 belows; Spring 9 fixed ends are supported on main magnetic steel displacement case 5 outsides.
Described one group of magnet steel has played buffer action, magnetic field space between major and minor magnet steel forms the isolation zone, the motor screw-drive mechanism is sealed in the totally-enclosed machine box cavity, fully, cut off passage between motor and combustion gas reliably, guarantee motor safety work, can guarantee the action of a magnetic field power between the major and minor magnet steel simultaneously again fully; Forward and reverse rotation behind the described electrical power drives main magnet steel shift reciprocately, and the kinetic energy of motor is the motive force of main magnet steel shift reciprocately; The described one major and minor magnet steel that there is a natural attraction between the sexes, and spring is constructed to the power source mechanism of open and close valve, main magnet steel is to the magnetic field suction of secondary magnet steel, valve, is simultaneously driven in realization, and spring is compressed store kinetic energy, loses magnetic field suction between the major and minor magnet steel, spring discharges kinetic energy, spring-relaxation power realizes closing valve, and magnetic force is being controlled the open and close valve, and magnetic field suction and spring-relaxation power are respectively the power sources of open and close valve; Described master, the action of a magnetic field power between the secondary magnet steel, splitting the Valve travel distance plays a leading role, can be according to opening the Valve travel needs, determine " spacings of two magnet steel adsorption sites ", the correct magnetic intensity of magnet steel and the work loads of spring selected, so-called " spacings of two magnet steel adsorption sites " are meant: valve is in close valve state, main magnet steel is in main magnetic steel displacement box cavity bottom, secondary magnet steel is apart from main magnetic steel displacement case outer bottom maximum value, spring is diastole state, the action of a magnetic field power between main magnet steel and the secondary magnet steel, be enough to overcome the diastole power of spring, main magnet steel adsorbs secondary magnet steel move toward one another, at this moment, the residing respectively position of main magnet steel and secondary magnet steel is called " two magnet steel adsorption sites ", and is main, the obverse distance of secondary magnet steel claims " spacings of two magnet steel adsorption sites "; Described valve cover mechanism can be provided with valve cover mechanism displacement guide rail, and the swing degree when reducing the valve cover action improves sealing, reduces rate of fault.
Its working principle is: the motor rotation, drive main magnet steel 3 and be moved to main magnetic steel displacement case 5 intracavity bottoms downwards along screw-thread drive shaft 8, major and minor magnet steel produces magnetic field suction, secondary magnet steel 10 is subjected to the effect of magnetic field suction to the 5 external bottom displacements of main magnetic steel displacement case, valve cover mechanism synchronous shift is finished valve and is opened the valve function, simultaneously, spring 9 bears compression, store kinetic energy; Motor counter-rotating, drive main magnet steel 3 along screw-thread drive shaft 8 to top offset, away from main magnetic steel displacement case 5 intracavity bottoms, secondary magnet steel 10 loses magnetic field suction, spring 9 discharges kinetic energy, diastole, the synchronous backward displacement of valve cover mechanism, resets, and finishes valve and closes the valve function.The forward and reverse again and again rotation of motor, the spool circulation realizes the function of open and close valve.
Owing to adopt such scheme, compared with prior art, be not difficult to draw as drawing a conclusion: the present invention is skillfully constructed, because this valve uses one group of magnet steel, magnetic field space between the major and minor magnet steel forms the isolation zone, reliably, fully cut off interior motor of full closed electric machine case and the passage between the combustion gas, electrical spark that has produced when thoroughly having blocked machine operation and contacts fuel gas, the phenomenon that may cause gas valve burning, blast of having avoided prior art to exist, stop potential safety hazard, guarantee that valve uses Security and the reliability in flammable explosive gas.Simultaneously, rationally determine " spacings of two magnet steel adsorption sites ", correctly select the field intensity of magnet steel and the work loads of spring, can increase valve and open Valve travel, reduce pressure loss to greatest extent; And by rational valve cover mechanism displacement guide rail is set, the movement locus of venting valve door closure, thus possess better than the flexibility of conventional motors valve, reducing internal leakage, the advantage that the switch valve rate of fault is low has promotional value.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail.
Accompanying drawing 1 is a spool technological scheme framework;
Accompanying drawing 2 is structural representations of embodiment.
Embodiment
Below in conjunction with accompanying drawing 2 " embodiment's structural representation " the present invention is described in further detail:
In the accompanying drawing 2, a secondary magnet steel that there is a natural attraction between the sexes 10 is provided and contains the main magnet steel 3 that internal thread, outer wall are provided with main magnetic steel displacement guide rail 2, and a spring 9 is constructed to the power source mechanism 20 of open and close valve; Provide an inwall to be provided with the main magnetic steel displacement case 5 and the adapter 11 of the secondary guide rail 4 of main magnetic steel displacement; Described main magnetic steel displacement case 5 and motor case 1 are configured to full closed electric machine case 21; Described motor 6 is installed on the positioning plate 7 through gear graduation 32 and the screw-thread drive shaft 8 that screws in main magnet steel 3 and links and the secondary guide rail 4 of main magnetic steel displacement is configured to drive the motor screw-drive mechanism 22 of main magnet steel 3 shift reciprocatelies jointly, be placed in the inner chamber of full closed electric machine case 21, the positioning plate 7 of fixed electrical machinery 6 can be installed in the junction of motor case 1 below and main magnetic steel displacement case 5; Described spring 9 movable ends are connected on the adapter 11, are configured to valve cover mechanism 23 whole, that be synchronized with the movement jointly with secondary magnet steel 10, valve cover 12, are suspended on main magnetic steel displacement case 5 belows, and spring 9 fixed ends are supported on main magnetic steel displacement case 5 outsides.Spool mainly is made up of power source mechanism 20, full closed electric machine case 21, motor screw-drive mechanism 22 and valve cover mechanism 23, and spool and valve body 14 are integrated into the spring-relaxation closed valve suspension combustion gas motor magnetic control safety valve through joiner 15.
In the present case, on positioning plate and bottom the main magnetic steel displacement box cavity positioning hole 31 is set respectively, lays screw-thread drive shaft, motor links with screw-thread drive shaft after gear graduation 32; Full closed electric machine case is set connects pedestal 33, be convenient to the motor case and connect with the main magnetic steel displacement case; Full closed electric machine case connects pedestal 33 and joiner 15 all is arranged on positioning plate extension position and positioning plate is connected into integral body; The adapter upper end is provided with spring movable end dunnage, valve cover mechanism displacement guide rail and hangs valve cover mechanism, this setting is integrated into the three-in-one, and the function of spring movable end dunnage, the function that valve cover mechanism displacement guide rail is realized in the side, the function that valve cover mechanism is realized hanging in the bottom surface are realized in the surface; The main magnetic steel displacement box outer wall is provided with the spring fixed end dunnage; The secondary guide rail of the valve cover mechanism displacement that is provided with is placed in the downward extending part inwall of main magnetic steel displacement box outer wall, and this extending part inwall lower end is settled and hung valve cover mechanism 23; Described motor case 1, main magnetic steel displacement case 5 connect the junction of pedestal 33 respectively with full closed electric machine case, settle the rubbery flat gasket sealing respectively, also settle the rubbery flat gasket sealing between valve body 14 and the joiner.
Working principle of the present invention is below described: when motor is connected the effect of power supply rotation by motor screw-drive mechanism 22, drive main magnet steel 3 and be moved to main magnetic steel displacement case 5 intracavity bottoms downwards along screw-thread drive shaft 8, major and minor magnet steel produces magnetic field suction, secondary magnet steel 10 is subjected to the effect of magnetic field suction to the 5 external bottom displacements of main magnetic steel displacement case, valve cover mechanism 23 synchronous shift are finished valve and are opened the valve function, simultaneously, spring 9 bears compression, store kinetic energy; The rotation of motor reversal connection reversal of power, effect by motor screw mechanism 22, drive main magnet steel 3 along screw-thread drive shaft 8 to top offset, away from main magnetic steel displacement case 5 intracavity bottoms, secondary magnet steel 10 loses magnetic field suction, spring 9 discharges kinetic energy, diastole, the 23 synchronous backward displacements of valve cover mechanism, reset, finish valve and close the valve function.The forward and reverse again and again rotation of motor, the spool circulation realizes the function of open and close valve.The described one group of magnet steel of present embodiment, magnetic field space between major and minor magnet steel forms the isolation zone, fully, cut off built-in motor of full closed electric machine case and the passage between combustion gas reliably, stop potential safety hazard, avoided that prior art exists may cause motor rotation the time and the combustion gas phenomenon of burning, exploding; Described motor is connected the power supply rotation, drives main magnet steel shift reciprocately, and the kinetic energy of motor is the reciprocating motive force of main magnet steel; Described main magnet steel realizes opening valve to the magnetic field suction of secondary magnet steel, lose magnetic field suction between the major and minor magnet steel, spring discharges kinetic energy, and spring-relaxation power realizes closing valve, magnetic force is being controlled the open and close valve, and magnetic field suction and spring-relaxation power are respectively the power sources of open and close valve; Described valve cover mechanism displacement guide rail is guaranteed the stability of valve cover mechanism kinematic, the valve cover end face contacts driving fit with valve body air outlet hole end face when closing valve, reduces internal leakage; Simultaneously, the stability of valve cover mechanism kinematic has promoted the flexibility of valve cover mechanism shift reciprocately, has reduced the rate of fault of open and close valves.The Valve travel distance of opening that major and minor magnet steel field intensity of selecting in the present embodiment and spring work loads reach improves 40% than prior art.
Claims (4)
1. spring-relaxation closed valve suspension combustion gas motor magnetic control safety valve, spool comprises: motor case, motor are installed on the positioning plate, driving component, valve cover, Sealing etc., and valve body, the joiner of spool and valve body is formed, it is characterized in that: a secondary magnet steel that there is a natural attraction between the sexes is provided and contains the main magnet steel that internal thread, outer wall are provided with main magnetic steel displacement guide rail, and a spring is constructed to the power source mechanism of open and close valve; Provide an inwall to be provided with the main magnetic steel displacement case and the adapter of the secondary guide rail of main magnetic steel displacement; Main magnetic steel displacement case and motor box structure that described inwall is provided with the secondary guide rail of main magnetic steel displacement are full closed electric machine case; Described motor is installed on the positioning plate and links with the screw-thread drive shaft that screws in main magnet steel and the secondary guide rail of main magnetic steel displacement is configured to drive the motor screw-drive mechanism of main magnetic steel displacement jointly, is placed in the inner chamber of full closed electric machine case; Its movable end of described spring is connected on the adapter, is configured to valve cover mechanism whole, that be synchronized with the movement jointly with secondary magnet steel, valve cover, is suspended on main magnetic steel displacement case below, and spring fixed end is supported on main magnetic steel displacement case outside.
2. a kind of spring-relaxation closed valve suspension combustion gas motor magnetic control safety valve as claimed in claim 1 is characterized in that: described motor links with screwing in main magnet steel screw-drive mechanism, can be direct connection, also can be to link through after the speed change.
3. a kind of spring-relaxation closed valve suspension combustion gas motor magnetic control safety valve as claimed in claim 1 is characterized in that: described outer wall is provided with the main magnet steel of main magnetic steel displacement guide rail and the secondary guide rail of main magnetic steel displacement that the main magnetic steel displacement chamber interior wall is provided with is slidingly matched mutually.
4. a kind of spring-relaxation closed valve suspension combustion gas motor magnetic control safety valve as claimed in claim 1, it is characterized in that: described motor is installed on the positioning plate, the positioning hole of screw-thread drive shaft can be set on the positioning plate, can form the joiner of spool and valve body at positioning plate extension position or be configured to the connection pedestal of full closed electric machine case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610147872 CN101210620A (en) | 2006-12-25 | 2006-12-25 | Spring relaxation closed valve suspension combustion gas motor magnetic control safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610147872 CN101210620A (en) | 2006-12-25 | 2006-12-25 | Spring relaxation closed valve suspension combustion gas motor magnetic control safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101210620A true CN101210620A (en) | 2008-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610147872 Pending CN101210620A (en) | 2006-12-25 | 2006-12-25 | Spring relaxation closed valve suspension combustion gas motor magnetic control safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101210620A (en) |
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2006
- 2006-12-25 CN CN 200610147872 patent/CN101210620A/en active Pending
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Open date: 20080702 |