CN101126452B - Double magnet attraction superposed type fuel gas motor magnetic-control relief valve - Google Patents
Double magnet attraction superposed type fuel gas motor magnetic-control relief valve Download PDFInfo
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- CN101126452B CN101126452B CN2006100301540A CN200610030154A CN101126452B CN 101126452 B CN101126452 B CN 101126452B CN 2006100301540 A CN2006100301540 A CN 2006100301540A CN 200610030154 A CN200610030154 A CN 200610030154A CN 101126452 B CN101126452 B CN 101126452B
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Abstract
The invention discloses a double magnetic-attraction overlapping-type magnetically-controlled relief valve for the gas turbine, which is technically characterized in that a primary steel magnet and a secondary steel magnet which have different polarities and are attractive to each other are adopted to organically combine with a back-attraction steel magnet; the mutual attraction of the primary and secondary steel magnets can open the valve, and the mutual attraction of the back-attraction steel magnet and the secondary steel magnet can close the valve, the two sets of the steel magnets attract alternatively and repeatedly to open and close the valve; Owing to the isolated area formed by the magnetic field between the primary and the secondary steel magnets, the engine can be arranged in a completely-sealed case, and realizes the purpose of completely and reliably isolating the engine from the gas; furthermore, the part of the valve cover overlaps with the completely-sealed engine case, which shortens the total height of the valve, and meets the present market demand of 'miniaturization of the valve'; at the same time, the valve has long opening and closing travel, the pressure loss is small, the failure rate is low, and has high value of popularization.
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 by spool and valve body two big unit architectures, but, in the IC-card gas meter, IC-card gas meter tool shell is regarded as valve body, its port of giving vent to anger is considered as the valve body port of giving vent to anger, the independent existing example that uses spool, therefore, the performance of spool, quality have become the key technology of structure combustion gas motor valve, and the technological scheme of spool employing mainly contains usually: under the drive of motor, through spur gear tooth bar transmission or gear screw drive, promote the valve cover displacement and finish out valve and close valve events.Because the seal approach of this class formation 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 Valve travel, and the build-up of pressure loss ratio is bigger, again because such valve cover swing degree when action is bigger, not only air-tightness is relatively poor when closing valve, and internal leakage very easily takes place, and, cause 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, two magnetic valve of gas electric machine magnetic control safety that valve driving machine and combustion gas are cut off fully.
For achieving the above object, the present invention adopts the valve of gas electric machine magnetic control safety of the spool technical construction of two magnetic coincide type magnetic controls, its technological scheme is, a kind of double magnet attraction superposed type fuel gas motor magnetic-control safety valve, the framework of its spool mainly is made up of two groups of magnet steel that there is a natural attraction between the sexes, full closed electric machine case, motor screw-drive mechanism, U type valve cover mechanism and valve body etc., and its characteristics are, and: a provides two groups of actings in conjunction to be constructed to the power source of open and close valve in main magnet steel secondary magnet steel, that there is a natural attraction between the sexes and back suction magnet steel; B., the full closed electric machine case of one motor case and main magnetic steel displacement box structure is provided; C., the motor screw-drive mechanism of one driving main magnetic steel displacement is provided, is sealed in the totally-enclosed machine box cavity; D. the secondary magnet steel that provides is configured to U type valve cover mechanism whole, that be synchronized with the movement with the valve cover integration; E. the U type valve cover mechanism that provides can overlap with the main magnetic steel displacement case in displacement stroke.
Described one group of major and minor magnet steel has played isolation features: the magnetic field space between major and minor magnet steel forms the isolation zone, motor and screw-drive mechanism and main magnet steel are sealed in the totally-enclosed machine box cavity, fully, block passage between motor and combustion gas reliably, the work of absolute assurance motor safety, this isolation simultaneously also guarantees the action of a magnetic field between the major and minor magnet steel fully.The motor screw-drive mechanism that drives main magnetic steel displacement can be for a kind of mechanism that selects for use: motor and screw-thread drive shaft link, the main magnet steel that contains internal thread and displacement guide rail screws in screw-thread drive shaft, and the secondary guide rail of the displacement of main magnet steel is constructed screw-drive mechanism jointly, its function is: motor is a motive force, the forward and reverse rotation of motor, drive power screw rotation motion is transformed into straight reciprocating motion, main magnet steel is along the screw-thread drive shaft shift reciprocately.The U type valve cover mechanism here, U type adapter can be set secondary magnet steel, valve cover integration are configured to mechanism whole, that be synchronized with the movement, its function is: secondary magnet steel is subjected to the suction displacement of main magnet steel magnetic field, U type valve cover mechanism synchronous shift, major and minor magnet steel loses the effect that magnetic field suction, secondary magnet steel are subjected to back suction magnet steel adsorption force, secondary magnet steel and the synchronous backward displacement of valve cover mechanism, resets.U type valve cover mechanism can overlap with the main magnetic steel displacement case in displacement stroke and be meant: the displacement of U type valve cover mechanism exists closes the valve motion and opens two processes of valve motion, when U type valve cover mechanism reaches and finishes out valve events through opening the valve movement travel, when being moved to out the valve final state, its U type indent position overlaps with the main magnetic steel displacement box outer wall that constitutes full closed electric machine case, or partially overlap, its superiority not only shows the framework of optimizing valve cover mechanism and full closed electric machine case, make the valve mechanism advantages of simple that more becomes, and, embody because two mechanism's portion sizes overlap, shortened the total size of two structures, reduced the total height of valve, enlarge the application area of valve, met the market demand of current manufacturing " valve miniaturization " simultaneously.The power source of open and close valve is meant: motor is a motive force, drive the displacement of main magnet steel linear reciprocation by the motor screw-drive mechanism, the main magnet steel that realization hockets loses magnetic field suction to the magnetic field suction and the back suction magnet steel of secondary magnet steel to secondary magnet steel, perhaps, main magnet steel loses the magnetic field suction of secondary magnet steel and the back suction magnet steel magnetic field suction to secondary magnet steel, when major and minor magnet steel adsorbed, the back suction magnet steel lost magnetic field suction to secondary magnet steel, and the magnetic field suction between major and minor magnet steel realizes opening the valve motion; When major and minor magnet steel lost magnetic field suction, the back suction magnet steel adsorbed secondary magnet steel, and the magnetic field suction between back suction magnet steel, secondary magnet steel realizes closing the valve motion, and the magnetic field suction of two groups of magnet steel is power sources of open and close valve.Main, the magnetic intensity of secondary magnet steel not only affects mutual the action of a magnetic field power, and the displacement height of valve cover played a leading role, promptly splitting the Valve travel height 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 selecting magnet steel, described " spacings of two magnet steel adsorption sites " are meant: valve is in and closes the valve final state, main magnet steel is in main magnetic steel displacement case bottom, secondary magnet steel is apart from main magnetic steel displacement case bottom maximum value, at this moment, the action of a magnetic field power between main magnet steel and the secondary magnet steel reaches: main magnet steel is enough to overcome the adsorption force of back suction magnet steel to secondary magnet steel, can adsorb the synchronous relative motion of secondary magnet steel interlock U type valve cover mechanism, valve is driven in realization, 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 ", and is main, magnetic field suction between secondary magnet steel claims " two magnet steel magnetic field suction ".Two magnet steel magnetic field suction are big, can increase the valve cover displacement height, increase to open Valve travel, reduce pressure loss.
Owing to adopt such scheme, 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 have been avoided the burning that may cause, explosion phenomenon, 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 ", the correct field intensity of selecting magnet steel, can increase valve open and close stroke, reduce pressure loss to greatest extent, and the movement locus that U type valve cover mechanism displacement guide rail can the venting valve door closure, thus possess better than the flexibility of conventional motors valve, 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 the technical solution of the present invention framework;
Accompanying drawing 2 is structural representations of the present invention.
Embodiment
Motor screw-drive mechanism 5; U type adapter is set valve cover, secondary magnet steel are integrated the U type valve cover mechanism 6 that structure is synchronized with the movement, annular back suction magnet steel 3 fixed in position are in bottom, valve body outlet side, and valve cover seals up the valve body port 7 of giving vent to anger.Its movement step is as follows: be moved to main magnetic steel displacement case bottom downwards when motor rotary drive motor screw-drive mechanism is converted to main magnet steel, the major-minor magnet steel is in " two magnet steel adsorption sites " respectively, magnetic field suction between main magnet steel 1 and the secondary magnet steel 2, adsorb secondary magnet steel and link U type valve cover mechanism synchronously to top offset, valve cover breaks away from the valve body port 7 of giving vent to anger, valve is driven in realization, and simultaneously, back suction magnet steel 3 loses the magnetic field suction to secondary magnet steel 2; When motor counter-rotating, the drive motor screw-drive mechanism be converted to main magnet steel 1 to top offset, reset, lose magnetic field suction between the major and minor magnet steel, the secondary magnet steel of back suction magnet steel 3 absorption 2 interlock U type valve cover mechanisms 6 synchronously to bottom offset, reset, realize closing valve.So go round and begin again, the magnetic field suction alternating action of two groups of magnet steel is finished valve open and close valve function.As shown in Figure 1, (1) motor is fixedly mounted on the positioning plate, can be provided with the positioning hole combination confession installation screw-thread drive shaft special use that positioning hole and main magnetic steel displacement box cavity bottom is provided with on the positioning plate; (2) motor and screw-thread drive shaft link, and can be directly to link, and also can link through speed change gear, to increase the screw-drive mechanism moment of torsion; (3) a kind of displacement guide rail of easy main magnet steel is to be provided with groove or projection at main magnet steel outer wall, and its shape can be arc, rectangle, columniform; (4) the secondary guide rail of the displacement of described main magnet steel must be complementary, help the displacement of main magnet steel linear reciprocation with the displacement guide rail of main magnet steel, the secondary guide rail of the displacement of main magnet steel can be arranged on the main magnetic steel displacement chamber interior wall and be projection or groove shape, also can be standalone configuration, its shape can be leg-of-mutton, arc, rectangle, columniform; (5) positioning plate can be provided with the connection pedestal that the extension position becomes motor case, main magnetic steel displacement box structure full closed electric machine case; (6) the back suction magnet steel also adopts annular magnetic steel to be placed in bottom, valve body outlet side; (7) system connector is that valve body becomes whole connection pedestal with spool construction, can be arranged on the epitaxial part that positioning plate prolongs; (8) U type adapter inwall matches mutually with the main magnetic steel displacement box outer wall, constructs the displacement guide rail of U type valve cover mechanism jointly, to reduce the swing degree of U-shaped valve cover mechanism, venting valve door closure movement locus.
2 couples of a kind of double magnet attraction superposed type fuel gas motor magnetic-control safety valve embodiments of the present invention are described in detail below in conjunction with accompanying drawing, see shown in the accompanying drawing 2: valve is in and closes the valve final state, in the present embodiment, main magnet steel 1 is inhaled mutually with secondary magnet steel 2 different polies, be provided with the positioning plate of positioning hole, the connection pedestal of full closed electric machine case and the system connector 13 that system connector is combined into integral body, motor case 8, main magnetic steel displacement case 19 are configured to full closed electric machine case; For increasing screw-thread drive shaft 10 moments of torsion, be provided with speed change gear group and the motor 9 of generator shaft gear 12 and spur gear 11 structures and contain internal thread and the main magnet steel screw-in screw-thread drive shaft 10 of displacement guide rail links, the main magnetic steel displacement chamber interior wall is provided with the secondary guide rail 20 common structure motor screw-drive mechanisms of displacement of main magnet steel, is sealed in the full closed electric machine case; Be provided with U type adapter 15, secondary magnet steel 2 is placed in its intracavity bottom, valve cover 16 is placed in its outer bottom, constructs U type valve cover mechanism jointly; Main magnetic steel displacement case 19 outer walls and U type adapter 15 inwalls are constructed the displacement guide rail of U type valve cover mechanism jointly; Valve body 21 is fixedly mounted on system connector 13 bottoms; Valve inlet, valve export, the valve port 7 of giving vent to anger all links with valve body 21 integral body; Motor case, main magnetic steel displacement case and system connector binding site are respectively with 17,18 sealings of sealing gasket circle; Be installed in bottom, valve outlet side with the secondary magnet steel annular back suction magnet steel 3 that there is a natural attraction between the sexes.Working principle of the present invention is below described: when motor 9 is connected the power supply rotation, be suitable moment of torsion and rotating speed by generator shaft gear 12 and spur gear 11 speed changes, drive screw-thread drive shaft 10 rotations, and act on main magnet steel 1, be subjected to the leading role of the displacement guide rail and the secondary guide rail 20 of displacement of main magnet steel, along the downward moving linearly of screw-thread drive shaft 10 axis to main magnetic steel displacement case 19 cavity bottoms---two magnet steel adsorption sites, under the effect of magnetic force, the secondary magnet steel of main magnet steel 1 absorption 2 interlock U type valve cover mechanisms are synchronously to top offset, valve cover 16 breaks away from the valves port 7 of giving vent to anger and finishes out valve, the suction that the magnet steel of back suction simultaneously 3 loses secondary magnet steel 2; Otherwise, when motor 9 is connected the reversal of power rotation, be suitable moment of torsion and rotating speed by generator shaft gear 12 and spur gear 11 speed changes, drive screw-thread drive shaft 10 rotations, and act on main magnet steel 1, be subjected to the leading role of the displacement guide rail and the secondary guide rail 20 of displacement of main magnet steel, make progress moving linearly to screw-thread drive shaft 10 tops along screw-thread drive shaft 10 axis, main magnet steel 1 weakens until the suction that loses secondary magnet steel 2, the secondary magnet steel of back suction magnet steel 3 absorption 2 interlock U type valve cover mechanisms finish the pass valve to bottom offset synchronously, simultaneously secondary magnet steel 2 synchronous resets.And so forth, realized the function of valve open and close valves.Present embodiment is owing to provide two groups of magnet steel, and the magnetic field space between major and minor magnet steel forms the isolation zone, blocks built-in motor of full closed electric machine case and the passage between the combustion gas fully, reliably, stops potential safety hazard; Owing to suitably selected the magnetic intensity of main magnet steel, secondary magnet steel and back suction magnet steel, increase valve and opened Valve travel again, effectively reduced pressure loss; And, be provided with the secondary guide rail of the displacement guide rail of U type valve cover mechanism and displacement, under its common leading role, stablized the movement locus of valve cover, reduce its swing degree, therefore, strengthened valve tightness and flexibility, reduced internal leakage and rate of fault.
Claims (8)
1. double magnet attraction superposed type fuel gas motor magnetic-control safety valve, the framework of its spool mainly is made up of two groups of magnet steel that there is a natural attraction between the sexes, full closed electric machine case, motor screw-drive mechanism, U type valve cover mechanism and valve body, it is characterized in that: a. provides two groups of actings in conjunction to be constructed to the power source of open and close valve in main magnet steel secondary magnet steel, that there is a natural attraction between the sexes and back suction magnet steel; B., the full closed electric machine case of one motor case and main magnetic steel displacement box structure is provided; C., the motor screw-drive mechanism of one driving main magnetic steel displacement is provided, is sealed in the totally-enclosed machine box cavity; D. the secondary magnet steel that provides is configured to U type valve cover mechanism whole, that be synchronized with the movement with the valve cover integration; E. the U type valve cover mechanism that provides can overlap with the main magnetic steel displacement case in displacement stroke.
2. a kind of double magnet attraction superposed type fuel gas motor magnetic-control safety valve as claimed in claim 1, it is characterized in that: described motor is installed on the positioning plate, and positioning hole is set on the positioning plate, at positioning plate extension position structure full closed electric machine case pedestal.
3. a kind of double magnet attraction superposed type fuel gas motor magnetic-control safety valve as claimed in claim 1, it is characterized in that: described motor screw-drive mechanism is: motor and screw-thread drive shaft link, the main magnet steel that contains internal thread and displacement guide rail screws in screw-thread drive shaft, constructs screw-drive mechanism jointly with the secondary guide rail of the displacement of main magnet steel.
4. a kind of double magnet attraction superposed type fuel gas motor magnetic-control safety valve as claimed in claim 1 is characterized in that: described U type valve cover mechanism is provided with U type adapter and secondary magnet steel, valve cover are integrated is configured to mechanism whole, that be synchronized with the movement.
5. a kind of double magnet attraction superposed type fuel gas motor magnetic-control safety valve as claimed in claim 1 is characterized in that: described U type valve cover mechanism inwall matches mutually with the outer wall of main magnetic steel displacement case, constructs the displacement guide rail of U type valve cover mechanism jointly.
6. a kind of double magnet attraction superposed type fuel gas motor magnetic-control safety valve as claimed in claim 2 is characterized in that: described positioning plate forms system connector at its epitaxial part.
7. a kind of double magnet attraction superposed type fuel gas motor magnetic-control safety valve as claimed in claim 3 is characterized in that: the displacement guide rail of described main magnet steel, be placed in main magnet steel outer wall, and be matrix.
8. a kind of double magnet attraction superposed type fuel gas motor magnetic-control safety valve as claimed in claim 3 is characterized in that: the secondary guide rail of the displacement of described main magnet steel, be projection, and the displacement guide rail that is arranged on main magnetic steel displacement chamber interior wall and main magnet steel is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100301540A CN101126452B (en) | 2006-08-17 | 2006-08-17 | Double magnet attraction superposed type fuel gas motor magnetic-control relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100301540A CN101126452B (en) | 2006-08-17 | 2006-08-17 | Double magnet attraction superposed type fuel gas motor magnetic-control relief valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101126452A CN101126452A (en) | 2008-02-20 |
| CN101126452B true CN101126452B (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100301540A Expired - Fee Related CN101126452B (en) | 2006-08-17 | 2006-08-17 | Double magnet attraction superposed type fuel gas motor magnetic-control relief valve |
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| Country | Link |
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| CN (1) | CN101126452B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993025832A1 (en) * | 1992-06-12 | 1993-12-23 | Mks Instruments, Inc. | Motor controlled throttling poppet valve |
| CN2243585Y (en) * | 1996-06-18 | 1996-12-25 | 李惠铭 | Electronic expansion valve controlled by computer |
| CN2325607Y (en) * | 1997-02-18 | 1999-06-23 | 重庆大学 | Micro power consumption electric valve |
| CN2337379Y (en) * | 1998-04-15 | 1999-09-08 | 重庆先锋电子有限公司 | Micro-consumption electric valve |
| CN2535620Y (en) * | 2002-03-28 | 2003-02-12 | 沈定金 | Gas-controlling combined switch valve |
-
2006
- 2006-08-17 CN CN2006100301540A patent/CN101126452B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993025832A1 (en) * | 1992-06-12 | 1993-12-23 | Mks Instruments, Inc. | Motor controlled throttling poppet valve |
| CN2243585Y (en) * | 1996-06-18 | 1996-12-25 | 李惠铭 | Electronic expansion valve controlled by computer |
| CN2325607Y (en) * | 1997-02-18 | 1999-06-23 | 重庆大学 | Micro power consumption electric valve |
| CN2337379Y (en) * | 1998-04-15 | 1999-09-08 | 重庆先锋电子有限公司 | Micro-consumption electric valve |
| CN2535620Y (en) * | 2002-03-28 | 2003-02-12 | 沈定金 | Gas-controlling combined switch valve |
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| Publication number | Publication date |
|---|---|
| CN101126452A (en) | 2008-02-20 |
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Granted publication date: 20101027 Termination date: 20110817 |