CN104913302A - Safety type double gas source control system - Google Patents
Safety type double gas source control system Download PDFInfo
- Publication number
- CN104913302A CN104913302A CN201510334444.3A CN201510334444A CN104913302A CN 104913302 A CN104913302 A CN 104913302A CN 201510334444 A CN201510334444 A CN 201510334444A CN 104913302 A CN104913302 A CN 104913302A
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- gas
- valve
- circuit
- firing device
- low heat
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/005—Regulating fuel supply using electrical or electromechanical means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention relates to gas-fired devices, in particular to a safety type double gas source control system. The safety type double gas source control system comprises a low calorific value pressure maintaining valve, a high calorific value pressure maintaining valve and a switch control valve, wherein the low calorific value pressure maintaining valve and the high calorific value pressure maintaining valve are connected with the switch control valve, the switch control valve has two circuits of gas to output, one circuit is pilot gas, the other circuit is a main gas circuit, the pilot gas is led to a corresponding fuel gas ignition device through a gas variety converter, the fuel gas ignition devices comprise the high calorific value fuel gas ignition device and the low calorific value fuel gas ignition device, the main gas circuit enters a main burner through an adjustable nozzle and is burned on the surface of the main burner, the sectional area of the adjustable nozzle is controlled by the gas variety converter, and an electromagnetic valve in the switch control valve is connected with the circuit of the thermocouple on the fuel gas ignition device and controlled by the gas variety converter and connected with the corresponding thermocouple. The safety type double gas source control system has the advantages that no potential safety hazard exists under the condition of faulty connection, and the use safety of a user is guaranteed.
Description
Technical field
The present invention relates to gas combustion apparatus, especially safety-type dual gas supply control system.
Background technology
There is various gas supply on the market at present, as liquefied gas, natural gas etc., corresponding gas utensil is also divided into liquefied gas and natural gas etc., because the characteristic difference (as calorific value etc.) of various combustion gas, the combustion gas that gas utensil correspondence uses can not with wrong, but because the gas utensil of the spray nozzle of gas kitchen ranges bore relative usage high heating value combustion gas using fuel gas with low heat value is larger, so when using gas utensil (as: Natural Gas tool) misconnection of fuel gas with low heat value to enter combustion gas (as: LNG gasifaction) of high heating value, the flame that gas utensil produces can be very high, then danger can be produced.
Summary of the invention
In order to solve the technical problem of above-mentioned gas utensil and combustion gas wrong, the invention provides safety-type dual gas supply control system.
Technical scheme of the present invention is as follows:
Safety-type dual gas supply control system, comprise low heat value pressure maintaining valve, high heating value pressure maintaining valve and switching control pilot, low heat value pressure maintaining valve, high heating value pressure maintaining valve are connected with switching control pilot, switching control pilot has tow channel gas to export, one tunnel is the gas that ignites, an other road is main gas circuit, the gas that ignites leads to corresponding gas ignition device after gas kind converter, gas ignition device is divided into high heating value gas ignition device and fuel gas with low heat value firing device, main gas circuit enters main burner and in its surface combustion through adjustable nozzle, adjustable
The sectional area of nozzle is controlled by gas kind converter, and the magnetic valve in switching control pilot and the circuit of the thermocouple on gas ignition device connect kind of converter of being bullied and control and be connected with corresponding thermocouple.
Described fuel gas with low heat value firing device comprises induction tunnel, ignition electrode, thermoelectric conversion device, induction tunnel there is free transom window, there is gas nozzle induction tunnel inside, combustion gas can be produced negative-pressure ejecting by gas nozzle ejection space-time transom window and enter after a certain amount of air mixes with combustion gas in induction tunnel and sprayed by the spout on induction tunnel, light after-combustion through ignition electrode and form pilot flame, thermoelectric conversion device is connected with the magnetic valve in switch valve, the connecting circuit of the magnetic valve in described thermoelectric conversion device and switch valve to be connected closed type temperature switch or open type temperature switch in parallel.
Described gas kind converter comprises valve body, described valve body left end is provided with adjustable nozzle, jet hole is provided with in the middle of adjustable nozzle inwall, primary air inlet is provided with on the right side of adjustable nozzle, low heat value firing device gas outlet, high heating value firing device gas outlet, firing device gas circuit air inlet, valve body right part is provided with valve seat, valve seat right part inwall slides and is provided with turn-knob bar, turn-knob bar left part is provided with lower valve rod, spool is provided with in valve seat, in the middle of spool, outer wall is provided with notch, rotational valve core makes notch be communicated with low heat value firing device gas outlet respectively, high heating value firing device gas outlet and firing device gas circuit air inlet, spool right part is provided with housing, housing is provided with interlock notch, pushing block is provided with in the middle part of turn-knob bar, Compress Spring is provided with between pushing block and spool, pushing block sticks into interlock notch band movable valve plug and rotates together, thus the gas circuit of carrying out high heating value combustion gas and fuel gas with low heat value switches, simultaneously lower valve rod changes distance between jet hole by left-right rotation, thus it is high to have adjusted jet hole correspondence, net sectional area needed for fuel gas with low heat value.
Described valve seat is provided with microswitch, pushing block can touch microswitch at specific gear, microswitch is respectively equipped with the magnetic valve circuit in the heat conversion device circuit of high heating value firing device, the heat conversion device circuit of low heat value firing device and switch valve.
Described notch is arc, and on the same line, firing device gas circuit air inlet is positioned at the vertical direction of low heat value firing device gas outlet and high heating value firing device gas outlet for low heat value firing device gas outlet and high heating value firing device gas outlet.
It is taper bottom described lower valve rod.
Be cylinder bottom described lower valve rod, cylinder and lower valve rod have inclined plane, and body diameter is less than the diameter of lower valve rod.
Be cylinder bottom described lower valve rod, adjustable nozzle is provided with multiple jet hole, and cylindrical outer wall is enclosed with O shape.
Be taper bottom described lower valve rod, adjustable nozzle is provided with multiple jet hole.
Described rotary knob rod carries out the switching of high and low calorific value fuel gas and nozzle net sectional area by the mode of left rotation and right rotation, or by rotary knob rod seesaw realize switch.
Use technical scheme of the present invention, high low heat value firing device gas circuit can be switched, adjust adjustable nozzle simultaneously
The net sectional area of installing port, change combustion gas environment, safety coefficient is higher, and convenient operation, convenient and practical, and in wrong situation also without potential safety hazard, guarantee the safety that user uses.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2,3,5,6 is structural representations of the present invention;
Fig. 4 be Fig. 3 B-B to cross-sectional view;
Fig. 7 is the structural representation of part of the present invention;
Fig. 8 be Fig. 3 A-A to cross-sectional view;
Fig. 9,10 is structural representations of embodiment 1;
Figure 11,12 is structural representations of embodiment 2;
Figure 13,14 is structural representations of embodiment 3;
Figure 15,16 is structural representations of embodiment 4;
Figure 17,18,21 is structural representations of fuel gas with low heat value firing device of the present invention;
Figure 19,20 is structural representations of the embodiment of the present invention 5;
Figure 22,23 is two states figure of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
embodiment 1
Safety-type dual gas supply control system as shown in Figure 1, comprise low heat value pressure maintaining valve 21, high heating value pressure maintaining valve 22 and switching control pilot 23, low heat value pressure maintaining valve 21, high heating value pressure maintaining valve 22 are connected with switching control pilot 23, switching control pilot 23 has tow channel gas to export, one tunnel is the gas that ignites, an other road is main gas circuit, the gas that ignites leads to corresponding gas ignition device after gas kind converter, gas ignition device is divided into high heating value gas ignition device 25 and fuel gas with low heat value firing device 26, and main gas circuit is through adjustable
Nozzle 6 enters main burner and in its surface combustion, the sectional area of adjustable nozzle 6 is controlled by gas kind converter, and the magnetic valve in switching control pilot 23 and the circuit of the thermocouple on gas ignition device connect kind of converter of being bullied and control and be connected with corresponding thermocouple.
As Figure 17, 18, shown in 21, described fuel gas with low heat value firing device comprises induction tunnel 31, ignition electrode 32, thermoelectric conversion device 33, induction tunnel 31 there is free transom window 36, there is gas nozzle 38 induction tunnel 31 inside, combustion gas is sprayed space-time transom window 36 by gas nozzle 38 and can produce negative-pressure ejecting and enter after a certain amount of air mixes with combustion gas in induction tunnel 31 and sprayed by the spout on induction tunnel 31, light after-combustion through ignition electrode 32 and form pilot flame, thermoelectric conversion device 33 is connected with the magnetic valve in switch valve, the connecting circuit of the magnetic valve in described thermoelectric conversion device 33 and switch valve to be connected closed type temperature switch, high heating value gas ignition device 25 is plain edition gas ignition devices, with fuel gas with low heat value firing device unlike closed type temperature switch or open type temperature switch in parallel that connecting circuit is not connected.
As Fig. 2, 3, 4, 5, 6, 8, 9, shown in 10, described gas kind converter, comprise valve body 2, described valve body 2 left end is provided with adjustable nozzle 6, jet hole 11 is provided with in the middle of adjustable nozzle 6 inwall, primary air inlet 7 is provided with on the right side of adjustable nozzle 6, low heat value firing device gas outlet 8, high heating value firing device gas outlet 9, firing device gas circuit air inlet 10, valve body 2 right part is provided with valve seat 3, valve seat 3 right part inwall slides and is provided with turn-knob bar 5, turn-knob bar 5 left part is provided with lower valve rod 1, it is taper bottom described lower valve rod 1, spool 12 is provided with in valve seat 3, the middle outer wall of spool 12 is provided with notch 13, rotational valve core 12 makes notch 13 be communicated with low heat value firing device gas outlet 8 respectively, high heating value firing device gas outlet 9 and firing device gas circuit air inlet 10, spool 12 right part is provided with housing 16, housing 16 is provided with interlock notch 17, pushing block 18 is provided with in the middle part of turn-knob bar 5, Compress Spring is provided with between pushing block 18 and spool 12, pushing block 18 sticks into interlock notch 17 and is with movable valve plug 12 to rotate together, thus the gas circuit of carrying out high heating value combustion gas and fuel gas with low heat value switches, lower valve rod 1 changes the distance between jet hole 11 by left-right rotation simultaneously, thus it is corresponding high to have adjusted jet hole 11, net sectional area needed for fuel gas with low heat value.
Described valve seat 3 is provided with microswitch 4, pushing block 18 can touch microswitch 4 at specific gear, microswitch 4 is respectively equipped with the magnetic valve circuit in the heat conversion device circuit of high heating value firing device, the heat conversion device circuit of low heat value firing device and switch valve, described rotary knob rod 5 carries out the switching of high and low calorific value fuel gas and nozzle net sectional area by the mode of left rotation and right rotation, or by rotary knob rod 5 seesaw realize switch.
Described notch 13 is arc, and on the same line, firing device gas circuit air inlet 10 is positioned at the vertical direction of low heat value firing device gas outlet 8 and high heating value firing device gas outlet 9 for low heat value firing device gas outlet 8 and high heating value firing device gas outlet 9.
During use, low-calorie combustion gas, gas kind converter is at low heat value gear, combustion gas enters switching control pilot 23 through low heat value pressure maintaining valve 21, the entrance of high heating value pressure maintaining valve is blocked, switching control pilot 23 has tow channel gas to export, gas circuit of igniting and main gas circuit, gas circuit of igniting enters fuel gas with low heat value firing device 26 through gas kind converter, namely safety-type fuel gas with low heat value firing device, closed type temperature switch is positioned near ignitron, when accessing correct combustion gas, pilot flame does not affect temperature switch, when the combustion gas (as liquefied gas) of high heating value has been tapped into the gas utensil that should use fuel gas with low heat value (as Natural Gas tool) by user, flame is longer and can have influence on temperature switch, now namely the duty of temperature switch can change, in normally open, thus be disconnected magnetic valve connecting circuit in thermoelectric conversion device and switch valve, gas circuit can not normally be opened, gas utensil cisco unity malfunction, thus ensure that safety, now the cross-section area of nozzle is relatively large through adjustable nozzle 6(for main gas circuit), the bottom pyramidal part of lower valve rod 1 is away from installed adjustable nozzle 6, the net sectional area of adjustable flow passage is increased, simultaneously, turn-knob bar 5 touches microswitch 4, make the thermoelectric conversion device on low heat value firing device and the solenoid valve conduction in switch valve, the gas that ignites enters main burner 24 and in its surface combustion, on circuit, magnetic valve in switch valve microswitch on gas kind converter is connected with the thermocouple on fuel gas with low heat value firing device, system access be the combustion gas of high heating value, gas kind converter is at high heating value gear, combustion gas enters switching control pilot 23 through high heating value pressure maintaining valve 22, the entrance of low heat value pressure maintaining valve is blocked, switching control pilot 23 has tow channel gas to export, gas circuit of igniting and main gas circuit, gas circuit of igniting enters high heating value gas ignition device through gas kind converter, main gas circuit enters main burner and in its surface combustion through adjustable nozzle (now adjustable nozzle sectional area is relatively little), on circuit, magnetic valve in switch valve microswitch on gas kind converter is connected with the thermocouple on high heating value gas ignition device.
embodiment 2
As shown in Figure 11,12, the present embodiment and embodiment 1 are unlike being cylinder, cylinder and lower valve rod bottom described lower valve rod 1
1 has inclined plane, and body diameter is less than the diameter of lower valve rod 1, switches gear when passing into fuel gas with low heat value, and cylinder departs from adjustable nozzle 6, and during high heating value gear, cylinder is filled in adjustable nozzle 6 completely, and make adjustable nozzle 6 become annular, net sectional area reduces.
embodiment 3
As shown in Figure 13,14, the present embodiment and embodiment 1 are unlike being cylinder bottom described lower valve rod 1, adjustable nozzle 6 is provided with multiple jet hole 11, cylindrical outer wall is enclosed with O shape, during low heat value gear, lower valve rod 1 departs from adjustable nozzle 6, during high heating value gear, jet hole 11 filled in by lower valve rod 1 lower end cylinder, thus reduces total cross-section area of nozzle.
embodiment 4
As shown in Figure 15,16, the present embodiment and embodiment 1 are unlike being taper bottom described lower valve rod 1, adjustable nozzle 6 is provided with multiple jet hole 11, during low heat value gear, lower valve rod 1 departs from adjustable nozzle 6, during high heating value gear, lower valve rod 1 lower end cone seal jet hole 11, thus reduce total cross-section area of nozzle.
embodiment 5
As shown in Figure 19,20, open type temperature switch in parallel on the connecting circuit of the magnetic valve of the present embodiment as different from Example 1 in described thermoelectric conversion device 3 and switch valve, when misconnection during the combustion gas of high heating value, by longer ignite fire impact after temperature switch be closure state, by the short circuit of thermoelectric conversion device, thus the magnetic valve in switch valve is disconnected, thus equally make gas utensil cisco unity malfunction, guarantee safety.
Claims (10)
1. safety-type dual gas supply control system, comprise low heat value pressure maintaining valve (21), high heating value pressure maintaining valve (22) and switching control pilot (23), low heat value pressure maintaining valve (21), high heating value pressure maintaining valve (22) is connected with switching control pilot (23), switching control pilot (23) has tow channel gas to export, one tunnel is the gas that ignites, an other road is main gas circuit, the gas that ignites leads to corresponding gas ignition device after gas kind converter, gas ignition device is divided into high heating value gas ignition device (25) and fuel gas with low heat value firing device (26), main gas circuit enters main burner and in its surface combustion through adjustable nozzle (6), the sectional area of adjustable nozzle (6)
Controlled by gas kind converter, the magnetic valve in switching control pilot (23) is connected with the circuit of the thermocouple on gas ignition device
Kind of converter of being bullied controls and is connected with corresponding thermocouple.
2. safety-type dual gas supply control system according to claim 1, it is characterized in that: described fuel gas with low heat value firing device comprises induction tunnel (31), ignition electrode (32), thermoelectric conversion device (33), induction tunnel (31) there is free transom window (36), there is gas nozzle (38) induction tunnel (31) inside, combustion gas can be produced after negative-pressure ejecting enters a certain amount of air and combustion gas mixes in induction tunnel (31) by gas nozzle (38) ejection space-time transom window (36) and be sprayed by the spout on induction tunnel (31), light after-combustion through ignition electrode (32) and form pilot flame, thermoelectric conversion device (33) is connected with the magnetic valve in switch valve, the connecting circuit of the magnetic valve in described thermoelectric conversion device (33) and switch valve to be connected closed type temperature switch or open type temperature switch in parallel.
3. safety-type dual gas supply control system according to claim 1, it is characterized in that: described gas kind converter comprises valve body (2), described valve body (2) left end is provided with adjustable nozzle (6), jet hole (11) is provided with in the middle of adjustable nozzle (6) inwall, adjustable nozzle (6) right side is provided with primary air inlet (7), low heat value firing device gas outlet (8), high heating value firing device gas outlet (9), firing device gas circuit air inlet (10), valve body (2) right part is provided with valve seat (3), valve seat (3) right part inwall slides and is provided with turn-knob bar (5), turn-knob bar (5) left part is provided with lower valve rod (1), spool (12) is provided with in valve seat (3), in the middle of spool (12), outer wall is provided with notch (13), rotational valve core (12) makes notch (13) be communicated with low heat value firing device gas outlet (8) respectively, high heating value firing device gas outlet (9) and firing device gas circuit air inlet (10), spool (12) right part is provided with housing (16), housing (16) is provided with interlock notch (17), turn-knob bar (5) middle part is provided with pushing block (18), Compress Spring is provided with between pushing block (18) and spool (12), pushing block (18) sticks into interlock notch (17) band movable valve plug (12) and rotates together, thus the gas circuit of carrying out high heating value combustion gas and fuel gas with low heat value switches, lower valve rod (1) changes the distance between jet hole (11) by left-right rotation simultaneously, thus it is corresponding high to have adjusted jet hole (11), net sectional area needed for fuel gas with low heat value.
4. safety-type dual gas supply control system according to claim 3, it is characterized in that: described valve seat (3) is provided with microswitch (4), pushing block (18) can touch microswitch (4) at specific gear, microswitch (4) is respectively equipped with the magnetic valve circuit in the heat conversion device circuit of high heating value firing device, the heat conversion device circuit of low heat value firing device and switch valve.
5. safety-type dual gas supply control system according to claim 3, it is characterized in that: described notch (13) is arc, on the same line, firing device gas circuit air inlet (10) is positioned at the vertical direction of low heat value firing device gas outlet (8) and high heating value firing device gas outlet (9) for low heat value firing device gas outlet (8) and high heating value firing device gas outlet (9).
6. safety-type dual gas supply control system according to claim 3, is characterized in that: described lower valve rod (1) bottom is taper.
7. safety-type dual gas supply control system according to claim 3, is characterized in that: described lower valve rod (1) bottom is cylinder, and cylinder and lower valve rod (1) have inclined plane, and body diameter is less than the diameter of lower valve rod (1).
8. safety-type dual gas supply control system according to claim 3, is characterized in that: described lower valve rod (1) bottom is cylinder, and adjustable nozzle (6) is provided with multiple jet hole (11), and cylindrical outer wall is enclosed with O shape.
9. safety-type dual gas supply control system according to claim 3, is characterized in that: described lower valve rod (1) bottom is taper, and adjustable nozzle (6) is provided with multiple jet hole (11).
10. safety-type dual gas supply control system according to claim 3, it is characterized in that: described rotary knob rod (5) carries out the switching of high and low calorific value fuel gas and nozzle net sectional area by the mode of left rotation and right rotation, or seesaw to realize switching by rotary knob rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334444.3A CN104913302B (en) | 2015-06-16 | 2015-06-16 | Safety-type dual gas supply control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334444.3A CN104913302B (en) | 2015-06-16 | 2015-06-16 | Safety-type dual gas supply control system |
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| CN104913302A true CN104913302A (en) | 2015-09-16 |
| CN104913302B CN104913302B (en) | 2017-12-22 |
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| CN201510334444.3A Active CN104913302B (en) | 2015-06-16 | 2015-06-16 | Safety-type dual gas supply control system |
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| CN105222221A (en) * | 2015-11-02 | 2016-01-06 | 广州祈信金属制品有限公司 | The two fuel gas heating apparatus of new type of safe |
| CN108916876A (en) * | 2018-07-05 | 2018-11-30 | 南京锐控机电制造有限公司 | Gas source automatic identification control device and gas source automatic identifying method |
| WO2019228415A1 (en) * | 2018-05-31 | 2019-12-05 | 青岛海尔智慧厨房电器有限公司 | Injector for gas stove |
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| WO2019228415A1 (en) * | 2018-05-31 | 2019-12-05 | 青岛海尔智慧厨房电器有限公司 | Injector for gas stove |
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| CN108916876A (en) * | 2018-07-05 | 2018-11-30 | 南京锐控机电制造有限公司 | Gas source automatic identification control device and gas source automatic identifying method |
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| Publication number | Publication date |
|---|---|
| CN104913302B (en) | 2017-12-22 |
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