CN103216643B - Fuel gas valve for assisting gas supply and ignition - Google Patents
Fuel gas valve for assisting gas supply and ignition Download PDFInfo
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- CN103216643B CN103216643B CN201310125608.2A CN201310125608A CN103216643B CN 103216643 B CN103216643 B CN 103216643B CN 201310125608 A CN201310125608 A CN 201310125608A CN 103216643 B CN103216643 B CN 103216643B
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Abstract
The invention relates to a fuel gas valve for assisting gas supply and ignition, which comprises a valve body provided with a solenoid valve cavity and a valve element cavity, wherein a gas inlet and a gas outlet are formed in the side wall of the valve body, a solenoid valve is arranged in the solenoid cavity, a valve element is arranged in the valve element cavity, and a valve rod is arranged on the valve element in a penetrating mode. The fuel gas valve is characterized in that a steeped hole is formed in the valve element, and is provided with a large fire hole and at least one small fire hole in the periphery wall, the side wall of the small-hole part of the stepped hole is provided with an assisting gas supplying hole communicated with the large fire hole, a first seal ring is arranged at the lower end of the valve rod, is downwards separated from the stepped hole to enable the assisting gas supplying hole to be communicated with the valve element cavity under a valve element moving down state, and forms seal together with the large-hole part of the stepped hole under the reset state of the valve element, and a permanent lighting fire port directly communicated with the valve element cavity is formed in the side wall of the valve body. During ignition, fuel gas is communicated with the gas outlet by the large fire hole as well as the assisting gas supplying hole, thus supplying sufficient fuel gas during ignition and ensuring the success rate of ignition.
Description
Technical field
The present invention relates to a kind of gas range safety valve, relate in particular to a kind of gas valve of helping air supply igniting.
Background technique
Gas valve in various gas utensils is the manual operating valve of controlling source of the gas supply.Common gas valve generally comprises the valve body that has gas-entered passageway and outlet passageway, in valve body, be provided with revolvable spool, spool top has spring chamber, spool bottom is provided with venting cavity, on valve body, be equipped with the valve rod that can drive Spool rotating, on spool, there is slot, on the sidewall of valve rod, there is attachment post, the lower end of valve rod holds and makes valve rod keep moving and disengaging is connected the spring of trend with spool, this spring is positioned at the spring chamber on spool, has to be communicated with large fire hole and the small fire hole of gas-entered passageway and outlet passageway on the venting cavity sidewall of spool.Press down valve rod, attachment post on valve rod inserts in slot, rotational valve core igniting or adjusting firepower gear, when large fire hole is communicated with air outlet, in maximum gear, gas output is maximum, when small fire hole is communicated with air outlet, in minimum gear, gas output is minimum, valve rod loses after downforce, and valve rod resets under spring action.Traditional gas valve, after accident extinguishment of gas stove, can not be realized automatic cut-out combustion gas, and combustion gas continues to leak, and Security is poor.
If a patent No. is the Chinese utility model patent < < gas control valve > > of ZL91221315.9 (notification number is CN2096678U), the patent No. is Chinese utility model patent < < safe gas valve > > of ZL201120074778.9 (notification number is CN201954067U), they have disclosed a kind of so similar gas valve, include valve body, valve seat, spool, valve rod and stage clip, also comprise solenoid valve, driving mechanism and thermocouple, solenoid valve comprises solenoid valve seat and electromagnetic valve core, has air-inlet cavity and the electromagnetic valve core chamber vertical with air-inlet cavity on solenoid valve seat, and electromagnetic valve core chamber and air-inlet cavity intersection have the core print seat of electromagnetic valve core, and the air outlet hole in electromagnetic valve core chamber is communicated with connecting tube on valve seat, driving mechanism is arranged on solenoid valve seat and coordinates with the core of electromagnetic valve core, the wire of thermocouple is connected with electromagnetic valve core.Owing to adopting such structure, at the lower valve rod of pressing, spool is communicated with suction port and air outlet; Meanwhile, driving mechanism leaves the core of electromagnetic valve core, and after burner combustion, the thermoelectricity of thermocouple, makes electromagnetic valve work, continues burner for combustion gas; When burner extinguishes, thermocouple is without thermoelectricity, and the core of electromagnetic valve core and core print seat laminating, cut off fuel gas pipeline, prevents gas leakage, eliminated potential safety hazard.
For guaranteeing gas valve, light a fire successfully, need to when igniting, there is larger gas output, therefore generally only have and just can be lighted a fire in valve core rotation to big fire position during igniting, existing gas valve is when actual ignition, even if forward big fire position to, its gas output can not fine satisfied igniting requirement, sometimes be also difficult for being lighted fast, need relight repeatedly, if only increase the aperture of large fire hole, although can improve ignition success rate, can make gas valve excessive in big fire working procedure moderate heat amount, cause combustion gas waste.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned prior art present situation, to provide a kind of in igniting process, to have assisted gas supplement igniting and after igniting completes, cut off the supplementary gas valve of assisted gas, this gas valve can be guaranteed the one-time success rate of igniting, can the gas output after having lighted a fire not exerted an influence again.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of gas valve of helping air supply igniting, comprise the valve body with electromagnetism valve pocket and spool chamber, on the sidewall of valve body, have the suction port being communicated with electromagnetism valve pocket, and the air outlet being communicated with spool chamber, between electromagnetism valve pocket and spool chamber, by valve port, be communicated with, in electromagnetism valve pocket, be provided with the solenoid valve that control signal is provided by thermocouple, the armature of solenoid valve can cover or open described valve port, in spool chamber, be provided with spool, on spool, run through to be provided with by spring and hold the valve rod that moves trend in maintenance, valve rod move down the armature that can promote solenoid valve, it is characterized in that: the shoulder hole being provided with in described spool, on the perisporium of shoulder hole, have and axially run through spool bottom surface and in order to be communicated with the large fire hole of spool chamber and air outlet and at least one small fire hole, on the aperture portion sidewall of shoulder hole, have the helping air supply hole communicating with large fire hole, the lower end of described valve rod is provided with and can forms the first seal ring being sealed and matched with the macropore portion of shoulder hole, under spool under shifting state, the first seal ring leaves shoulder hole downwards, described helping air supply hole is communicated with spool chamber, under valve core reset state, the macropore portion inwall of described the first seal ring and shoulder hole forms sealing, with being communicated with of blocking-up helping air supply hole and spool chamber, on the sidewall of described valve body, have the burner kept burning day and night being directly communicated with spool chamber, the flame interaction producing by this ever-burning flame confession gas is in described electroheat pair.
Owing to needing there is lubricant oil between spool periphery and spool chamber inwall, for preventing that spool lubricant oil in rotation process from stopping up big or small fire hole, the periphery wall of above-mentioned spool is provided with large oil trap and at least one little oil trap, described large oil trap communicates with large fire hole and helping air supply hole, and described little oil trap communicates with corresponding small fire hole.
Above-mentioned small fire hole has two to be respectively the first small fire hole and the second small fire hole, described little oil trap has two, be respectively the first little oil trap and the second little oil trap, wherein the first small fire hole communicates with the first little oil trap, and the second small fire hole and the second little oil trap communicate.Two or more small fire holes are set can increase the adjusting gear of gas valve, two different small fire holes of pore size is set and can allows one of them small fire hole as little fire gear, and another small fire hole is used as moderate heat gear.
Above-mentioned helping air supply hole has two.Helping air supply more fully.
The top of above-mentioned spool is provided with opening up spring chamber, and described spring is positioned at spring chamber, is arranged with spring chamber inner circle wall and forms the second seal ring being sealed and matched on described valve rod.Spring chamber is set and to spring, provides suitable installation position, spring can not depart from, and guaranteeing provides elastic force upwards to valve rod, and seal ring setting prevents gas leakage.
Above-mentioned valve body is comprised of valve casing, valve gap and screw thread valve seat, valve gap is fixed by screws on the upper-end surface of valve casing, the cavity that valve gap and valve casing form forms described spool chamber, screw thread valve seat is threaded in the lower end of valve casing, the cavity that screw thread valve seat and valve casing form forms described electromagnetism valve pocket, described suction port, air outlet and burner kept burning day and night are arranged on valve casing, and described valve rod upper end passes renovates.This valve body structure is convenient to spool, valve rod, spool and solenoid valve to be assemblied in valve body
Compared with prior art, the invention has the advantages that: during igniting, valve rod moves down and opens the armature of solenoid valve, and combustion gas is communicated with spool chamber via valve port from suction port, simultaneously, the first seal ring on valve rod leaves shoulder hole downwards, helping air supply hole is communicated with spool chamber, not only has combustion gas to be communicated with air outlet via large fire hole during igniting, also has combustion gas to be communicated with air outlet by helping air supply hole, while making to light a fire, there is enough tolerance, guarantee ignition success rate; After igniting finishes, on valve rod resets, move, the macropore portion inwall of the first seal ring on valve rod and shoulder hole forms and seals simultaneously, to block being communicated with of helping air supply hole and spool chamber, only has large fire hole to work, and guarantees that tolerance can be not excessive, causes waste; After fire surprisingly extinguishes, fire no longer provides heat to thermocouple in addition, and thermocouple is generation current not, controls closed electromagnetic valve valve port, blocks combustion gas gas circuit, prevents that combustion gas from leaking.
Accompanying drawing explanation
Fig. 1 is the perspective view of the embodiment of the present invention;
Fig. 2 is the three-dimensional cutaway view of the embodiment of the present invention;
Fig. 3 is the sectional view (fired state) of the embodiment of the present invention;
Fig. 4 is the sectional view (igniting complete after and in big fire gear state) of the embodiment of the present invention;
Fig. 5 is the perspective view one of spool in the embodiment of the present invention;
Fig. 6 is the perspective view of spool in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Fig. 1～6, it is a preferred embodiment of the present invention.
A kind of gas valve of helping air supply igniting, comprise the valve body 1 with electromagnetism valve pocket 2 and spool chamber 3, on the sidewall of valve body 1, have the suction port 21 being communicated with electromagnetism valve pocket 2, and the air outlet 31 being communicated with spool chamber 3, between electromagnetism valve pocket 2 and spool chamber 3, by valve port 4, be communicated with, in electromagnetism valve pocket 2, be provided with the solenoid valve 5 that control signal is provided by thermocouple, the armature 51 of solenoid valve can cover or open described valve port 4, in spool chamber 3, be provided with spool 6, on spool 6, run through and be provided with the valve rod 7 that is held the trend of moving in maintenance by spring 10, on the lower end side face of valve rod 7, there is the protruding attachment post of side, on the side face of spool, have the opening up slot inserting for attachment post, slot axially arranges, at valve rod under raised state, attachment post 7 is positioned at the top of slot, under the state moving down at valve rod 7, attachment post is positioned at slot, just can be with ovable valve stem rotation.Valve rod 7 move down the armature 51 that simultaneously can promote solenoid valve, the top of spool 6 is provided with opening up spring chamber 69, spring 10 is positioned at spring chamber 69, is arranged with spring chamber 69 inner circle walls and forms the second seal ring 9 being sealed and matched on valve rod 7.On the sidewall of valve body 1, have the burner kept burning day and night 32 being directly communicated with spool chamber 3, the flame interaction producing by these burner 32 air feed kept burning day and night is in electroheat pair, and thermocouple does not show in drawing.
Valve body 1 is comprised of valve casing 11, valve gap 12 and screw thread valve seat 13, valve gap 12 is fixed by screws on the upper-end surface of valve casing 11, the cavity that valve gap 12 and valve casing 11 form forms spool chamber 3, screw thread valve seat 13 is threaded in the lower end of valve casing 11, the cavity that screw thread valve seat 13 and valve casing 11 form forms electromagnetism valve pocket 2, suction port 21, air outlet 31 and burner kept burning day and night 32 are arranged on valve casing 11, and valve rod 7 upper ends pass valve gap 12.
As shown in Figure 5,6, the shoulder hole 61 being provided with in spool 6, on the perisporium of shoulder hole 61, have and axially run through spool 6 bottom surfaces and in order to be communicated with large fire hole 62 and at least one small fire hole 63,64 of spool chamber 3 and air outlet 31, on the aperture portion sidewall of shoulder hole 61, have the helping air supply hole 65 communicating with large fire hole 62, helping air supply hole 65 has two.The lower end of valve rod 7 is provided with and can forms the first seal ring 8 being sealed and matched with the macropore portion of shoulder hole 61, under 6 times shifting states of spool, the first seal ring 8 leaves shoulder hole 61 downwards, helping air supply hole 65 is communicated with spool chamber 3, under spool 6 reset modes, the first seal ring 8 forms sealing with the macropore portion inwall of shoulder hole 61, to block being communicated with of helping air supply hole 65 and spool chamber 3.
The periphery wall of spool 6 is provided with large oil trap 66 and at least one little oil trap 67,68, and large oil trap 66 communicates with large fire hole 62 and helping air supply hole 65, and little oil trap 67,68 communicates with corresponding small fire hole 63,64.
Small fire hole has two to be respectively the first small fire hole 63 and the second small fire hole 64, the first small fire hole 63 and the second small fire hole 64, the first small fire hole 63 is two holes that pore size is different with the second small fire hole 64, the aperture of the first small fire hole 63 is slightly larger than the aperture of the second small fire hole 64, the first small fire hole 63 is used as moderate heat gear, and the second small fire hole 64 is used as little fire gear.Little oil trap has two, is respectively the first little oil trap 67 and the second little oil trap 68, and wherein the first small fire hole 63 communicates with the first little oil trap 67, and the second small fire hole 64 and the second little oil trap 68 communicate.
As shown in Figure 3, during igniting, press down and rotation valve rod 7, valve rod 7 band movable valve plugs 6 rotate to big fire and keep off, it is large fire hole 62, large oil trap 66, air outlet 31 and spool chamber 3 are communicated with, moving down of valve rod 7, make the first seal ring 8 on valve rod 7 leave shoulder hole 61 downwards, helping air supply hole 65 is communicated with spool chamber 3, the armature 51 of the solenoid valve of the lower end of valve rod 7 promotion simultaneously moves down, armature 51 is opened valve port 4, electromagnetism valve pocket 2 and spool chamber 3 are communicated with, at this moment combustion gas one road from suction port 21 via valve port 4, spool chamber 3, large fire hole 62 and large oil trap 66, another road from suction port 21 via valve port 4, spool chamber 3, the macropore portion of shoulder hole 61, helping air supply hole 65 and large oil trap 66, finally this two-way combustion gas all 31 is discharged air feed and is lighted a fire from air outlet, two-way gas circuit provides sufficient combustion gas to igniting, guarantee the success rate of igniting.
As shown in Figure 4, also have in addition Third Road combustion gas to the thermocouple being connected with solenoid valve 5, to heat via valve port 4, spool chamber 3, burner kept burning day and night 32 from suction port 21, thermocouple is under the heating of ever-burning flame, thermocouple produces electromotive force, and this electromotive force is added to coil the two poles of the earth of solenoid valve 5, and making has electric current by producing electromagnetic force in coil, absorption armature 51, the spring force that armature 51 overcomes solenoid valve 5 moves down, and makes valve port 4 in open mode all the time, guarantees that combustion gas is continuous.
After igniting finishes, as need be switched to, moderate heat keeps off or little fire gear, only need again press down and rotation valve rod 7, the second oil trap 67 is communicated with air outlet 21, or the 3rd oil trap 68 is communicated with air outlet 21.
When fire is gone out by wind or other surprisingly extinguishes, at this moment ever-burning flame is no longer heated to thermocouple, thermocouple no longer produces electromotive force, coil loses electric current, the armature 51 of solenoid valve upwards resets and blocks valve port 4 under spring action, the connection of blocking-up electromagnetism valve pocket 2 and spool chamber 3, whole gas circuit cuts off, and prevents that combustion gas from leaking.
Claims (6)
1. the gas valve of helping air supply igniting, comprise the valve body (1) with electromagnetism valve pocket (2) and spool chamber (3), on the sidewall of valve body (1), have the suction port (21) being communicated with electromagnetism valve pocket (2), and the air outlet (31) being communicated with spool chamber (3), between electromagnetism valve pocket (2) and spool chamber (3), by valve port (4), be communicated with, in electromagnetism valve pocket (2), be provided with the solenoid valve (5) that control signal is provided by thermocouple, the armature of solenoid valve (51) can cover or open described valve port (4), in spool chamber (3), be provided with spool (6), on spool (6), run through to be provided with by spring (10) and hold the valve rod (7) that moves trend in maintenance, valve rod (7) move down the armature (51) that can promote solenoid valve, it is characterized in that: the shoulder hole (61) being provided with in described spool (6), on the perisporium of shoulder hole (61), have and axially run through spool (6) bottom surface and in order to be communicated with large fire hole (62) and at least one small fire hole (63 of spool chamber (3) and air outlet (31), 64), on the aperture portion sidewall of shoulder hole (61), have the helping air supply hole (65) communicating with large fire hole (62), the lower end of described valve rod (7) is provided with and can forms the first seal ring (8) being sealed and matched with the macropore portion of shoulder hole (61), under the lower shifting state of spool (6), the first seal ring (8) leaves shoulder hole (61) downwards, described helping air supply hole (65) is communicated with spool chamber (3), under spool (6) reset mode, described the first seal ring (8) forms sealing with the macropore portion inwall of shoulder hole (61), with blocking-up helping air supply hole (65) and being communicated with of spool chamber (3), on the sidewall of described valve body (1), have the burner kept burning day and night (32) being directly communicated with spool chamber (3), the flame interaction producing by this burner kept burning day and night (32) air feed is in described thermocouple.
2. the gas valve that helping air supply according to claim 1 is lighted a fire, it is characterized in that: the periphery wall of described spool (6) is provided with large oil trap (66) and at least one little oil trap (67,68), described large oil trap (66) communicates with large fire hole (62) and helping air supply hole (65), and described little oil trap (67,68) communicates with corresponding small fire hole (63,64).
3. the gas valve that helping air supply according to claim 2 is lighted a fire, it is characterized in that: described small fire hole has two to be respectively the first small fire hole (63) and the second small fire hole (64), described little oil trap has two, be respectively the first little oil trap (67) and the second little oil trap (68), wherein the first small fire hole (63) communicates with the first little oil trap (67), and the second small fire hole (64) and the second little oil trap (68) communicate.
4. the gas valve of helping air supply igniting according to claim 1, is characterized in that: described helping air supply hole (65) has two.
5. the gas valve that helping air supply according to claim 1 is lighted a fire, it is characterized in that: the top of described spool (6) is provided with opening up spring chamber (69), described spring (10) is positioned at spring chamber (69), is arranged with spring chamber (69) inner circle wall and forms the second seal ring (9) being sealed and matched on described valve rod (7).
6. the gas valve that helping air supply according to claim 1 is lighted a fire, it is characterized in that: described valve body (1) is by valve casing (11), valve gap (12) and screw thread valve seat (13) form, described valve gap (12) is fixed by screws on the upper-end surface of valve casing (11), the cavity that valve gap (12) and valve casing (11) form forms described spool chamber (3), described screw thread valve seat (13) is threaded in the lower end of valve casing (11), the cavity that screw thread valve seat (13) and valve casing (11) form forms described electromagnetism valve pocket (2), described suction port (21), air outlet (31) and burner kept burning day and night (32) are arranged on valve casing (11), described valve rod (7) upper end passes valve gap (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125608.2A CN103216643B (en) | 2013-04-11 | 2013-04-11 | Fuel gas valve for assisting gas supply and ignition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125608.2A CN103216643B (en) | 2013-04-11 | 2013-04-11 | Fuel gas valve for assisting gas supply and ignition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103216643A CN103216643A (en) | 2013-07-24 |
| CN103216643B true CN103216643B (en) | 2014-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310125608.2A Active CN103216643B (en) | 2013-04-11 | 2013-04-11 | Fuel gas valve for assisting gas supply and ignition |
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| CN (1) | CN103216643B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104048329B (en) * | 2014-06-16 | 2016-02-24 | 阿诗丹顿电气(中山)有限公司 | A kind of gas control valve of infrared burner |
| CN106499850B (en) * | 2016-12-22 | 2018-09-21 | 邹启榆 | A kind of gas safe Anti-leakage self-close device |
| CN106918057A (en) * | 2017-04-21 | 2017-07-04 | 曹丁 | A kind of control device for infrared burner |
| CN108413104B (en) * | 2018-02-14 | 2024-06-11 | 尹祖军 | Gas path control method of straight-through electromagnetic valve and electromagnetic valve |
| CN108679255A (en) * | 2018-07-23 | 2018-10-19 | 华帝股份有限公司 | Plug valve capable of assisting in supplementing flow |
| CN110242771B (en) * | 2019-07-05 | 2024-06-25 | 宁波来特燃气具有限公司 | Temperature control valve with improved structure and long open fire function |
| CN114033868A (en) * | 2021-11-24 | 2022-02-11 | 台州美亚第流体智控有限公司 | Gas valve |
| CN114151575B (en) * | 2021-12-12 | 2022-09-16 | 台州美亚第流体智控有限公司 | Gas valve |
| CN114151576B (en) * | 2021-12-12 | 2023-09-26 | 台州美亚第流体智控有限公司 | Gas valve core |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2425617A1 (en) * | 1978-05-08 | 1979-12-07 | Saunier Duval | DEVICE FOR ADJUSTING THE SMALL FLOW OF A SOLENOID VALVE FOR APPLIANCES OF THE GAS BOILER TYPE |
| CN201772109U (en) * | 2010-08-19 | 2011-03-23 | 宁波大力微分电机有限公司 | Automatic temperature control gas safety valve |
| CN202708209U (en) * | 2012-07-02 | 2013-01-30 | 普鲁卡姆电器（上海）有限公司 | Double gas supply gas valve |
| CN203248782U (en) * | 2013-04-11 | 2013-10-23 | 宁波朝阳家用燃气具有限公司 | Fuel gas valve assisting ignition through gas supplying |
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2013
- 2013-04-11 CN CN201310125608.2A patent/CN103216643B/en active Active
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| CN103216643A (en) | 2013-07-24 |
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