CN101943476B - Automatic temp. -regulating pressure-stabilizing water-gas linkage valve for gas water heater - Google Patents
Automatic temp. -regulating pressure-stabilizing water-gas linkage valve for gas water heater Download PDFInfo
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- CN101943476B CN101943476B CN2010102813111A CN201010281311A CN101943476B CN 101943476 B CN101943476 B CN 101943476B CN 2010102813111 A CN2010102813111 A CN 2010102813111A CN 201010281311 A CN201010281311 A CN 201010281311A CN 101943476 B CN101943476 B CN 101943476B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 230000033228 biological regulation Effects 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 104
- 239000000567 combustion gas Substances 0.000 claims description 54
- 230000005540 biological transmission Effects 0.000 claims description 33
- 230000007246 mechanism Effects 0.000 claims description 33
- 239000012528 membrane Substances 0.000 claims description 21
- 230000009467 reduction Effects 0.000 claims description 21
- 230000000087 stabilizing effect Effects 0.000 claims description 17
- 230000033001 locomotion Effects 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013527 convolutional neural network Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The invention discloses an automatic temperature-regulating pressure-stabilizing water-gas linkage valve of a gas water heater, which comprises a temperature-regulating valve body, a linkage valve and a water valve body, wherein a gas outlet channel, a gas positive pressure chamber, a first valve channel and an air inlet interface are arranged in the temperature-regulating valve body, a second valve for controlling the on-off of the gas outlet channel and a gas final outlet is arranged between the gas outlet channel and the gas positive pressure chamber, the gas outlet channel and the gas positive pressure chamber are communicated through a gas valve port, the gas valve port is provided with a gas pressure-stabilizing component for controlling the flow of gas, the gas positive pressure chamber is communicated with the first valve channel, and an electromagnetic valve for controlling the on-off. The invention provides a water-gas linkage valve which integrates the functions of gas temperature regulation and constant temperature, gas pressure stabilization, water pressure stabilization and water-gas linkage.
Description
[technical field]
The present invention relates to a kind of aqueous vapor interstage valve, specifically is that the combustion gas of a kind of confession gas and hot water metal v-belt is regulated automatically, the combustion gas voltage stabilizing, reaches the novel aqueous vapor interstage valve of automatic constant-temperature.
[background technique]
Existing aqueous vapor interstage valve on the market is not with the metastable gas compression functions, is not with combustion gas to regulate the constant temperature function automatically.In use, because supply gas pressure is unstable, cause the sometimes hot and sometimes cold phenomenon of hot water.When setting temperature, the manual rotary valve core to establish the joint temperature.
In order to realize the gas water-heater of constant temp gas voltage stabilizing function, supplier must use gas ratio valve on the market to replace general aqueous vapor interstage valve, causes the complete machine cost high.
Gas ratio valve working principle on the market is the electromagnetic force that electromagnetic coil was produced that is provided with outside spool, controls moving of spool, relies on the control coil electric current to change the displacement amount of controlling spool.Electromagnetic force is relevant with coil, coil current etc.Cross when low when input voltage, the control electric current is too small, electromagnetic force is crossed the young pathbreaker and caused being failure to actuate.Be confined to above-mentioned reason with and reason such as power consumption height, gas ratio valve is not suitable for using low voltage or dryelement cell as the input power supply.
For this reason, the inventor has designed this patent, to overcome the problems referred to above.
[summary of the invention]
The present invention has overcome the deficiency of above-mentioned technology, and a kind of aqueous vapor interstage valve that integrates combustion gas temperature-adjusting constant temperature, combustion gas voltage stabilizing, steady hydraulic pressure, aqueous vapor interlock function is provided.With the supporting use of automatical control system, can control gas flow automatically according to use condition, realize constant temperature.Can also adjust the size on gas valve doorway according to the regulating command that computer controller sends, realize control firepower size.When the suction pressure fluctuation changed, the gaseous-pressure stabipack was adjusted automatically, guaranteed that outlet pressure is stable, thereby guaranteed the stable of water heater water-exit temperature.
For realizing above-mentioned purpose, the present invention has adopted following technical proposal:
A kind of gas water-heater automatic temperature-control voltage stabilizing aqueous vapor interstage valve; Comprise temperature adjustment valve body 1, interstage valve 2, water valve valve-body 3; Be provided with gas outlet passage 11, combustion gas plemum 12, the first road valve passage 13, intake interface 14 in the temperature adjustment valve body 1; Gas outlet passage 11 and combustion gas are provided with the second road valve 111 of both break-makes of control eventually between the outlet 23; Be communicated with by gas valve doorway 121 between gas outlet passage 11, the combustion gas plemum 12; The gas valve doorway is provided with the gaseous-pressure stabipack 4 of control gas flow; Be provided with the solenoid valve 15 of controlling both break-makes between the combustion gas plemum 12 connection first road valve passage, 13, the first road valve passages 13 and the intake interface 14, said gaseous-pressure stabipack 4 comprises air film air chamber 41, combustion gas negative pressure chamber 42, pressure reduction transmission membrane 43, gas control valve door 44, transmission shaft 45, Returnning spring 46, gas flow Regulation spring 47, slide block 48, screw rod 481, motor 482; Air film air chamber 41 communicates through plemum pressure-taking hole 411 with combustion gas plemum 12, is separated by pressure reduction transmission membrane 43 between air film air chamber 41 and the combustion gas negative pressure chamber 42; The one side of pressure reduction transmission membrane 43 is supported by the Returnning spring 46 that is arranged in the air film air chamber 41; The one side of pressure reduction transmission membrane 43 connects an end of transmission shaft 45 simultaneously; The other end of transmission shaft 45 connects gas control valve door 44, and gas control valve door 44 cooperates with gas valve doorway 121; Pressure reduction transmission membrane 43 another sides are supported by gas flow Regulation spring 47, and gas flow Regulation spring 47 another sides are withstood by slide block 48, and the screw rod 481 that is driven by motor 482 is housed in the slide block 48;
Said water valve valve-body 3 comprises water transfer mechanism 31, water intake 32, hydraulic drive mechanism 33, water valve constant-current stabilizer 34; Interstage valve 2 is provided with linking mechanism 21, sensitive switch 22, combustion gas outlet 23 eventually, and hydraulic drive mechanism 33 connects linking mechanism 21, and linking mechanism is stirred sensitive switch 22; The second road valve connects the linking mechanism 21 that drives its motion;
Said combustion gas negative pressure chamber 42 communicates with barometric pressure through exhaust port 421, and combustion gas negative pressure chamber also establishes 42 inside chute 422 and supplies slide blocks 48 to slide; On combustion gas negative pressure chamber 42 1 end walls, set screw post 16 is housed, locality is parallel with screw rod 481;
Said gas control valve door 44 is provided with the air valve aperture 441 that communicates with heat control valve gas outlet passage 11;
Said hydraulic drive mechanism 33 comprises moisture film sheet 331, return spring 332, the thimble 1 that is arranged in the water valve valve-body 3, and return spring, thimble one prop up the moisture film sheet, and thimble one the other end passes water valve valve-body 3;
Said linking mechanism 21 comprises fitting seat 211, driving lever 212, thimble 2 213; Driving lever, thimble two are inserted in the fitting seat; The driving lever the other end passes interstage valve 2 and contacts with sensitive switch 22, and thimble two the other ends connect the second road valve 111, and fitting seat is connected with thimble 1.
Compared with prior art, the present invention has following advantage:
1, change in the past each function and disperse, the shortcoming that repeat to superpose, cost is high, volume of the present invention, installation dimension are little, and versatility is good, compact structure.
2, a kind of and the diverse aqueous vapor interstage valve of existing technology being provided, having integrated automatic Regulation, constant temperature function, is a kind of low voltage, low current, constant temperature aqueous vapor interstage valve that power consumption is low;
3, available dry cell power supply is realized temperature-adjusting constant temperature; The temperature adjustment part also can be used separately, also can make in forceful electric power gas water-heater constant temperature and use;
4, compare with general temperature adjustment gas ratio valve, cost is low;
5, dry combustion prevention does not have water just not have gas, and is safe and reliable; No water, the second road valve 111 is closed;
6, compare with aqueous vapor interstage valve commonly used, have the metastable gas compression functions, the suction pressure fluctuation does not influence outlet pressure, thereby guarantees flameholding.Have combustion gas automatic temperature-control function, regulate the combustion gas size automatically, realize the firepower adjusting according to actual conditions;
7. compare with general temperature adjustment gas ratio valve, (the temperature adjustment gas ratio valve has only control combustion gas function module not have the water route function on the market.When therefore on water heater, using gas ratio valve control gas circuit, the water route wants to be provided with separately in addition).This automatic temperature-control voltage stabilizing aqueous vapor interstage valve has water valve, air valve is integrated.Water valve has the current stabilization function, and air valve is that temperature adjustment valve body tool is used voltage stabilizing function, therefore uses on the constant-temperature hot water device, to obtain better constant temperature effect.
This automatic temperature-control voltage stabilizing aqueous vapor interstage valve second road valve keeps the interstage valve second road valve of former aqueous vapor interstage valve commonly used in addition, thereby saves with solenoid valve as the second road valve institute power consumption, and therefore more convenient realization use dryelement cell is as power supply.(5.1.2.4 indication among the GB6932-2001: " leading on arbitrary fuel gas path of burner, should be provided with and be no less than the closable valve of twice ... ".)
8, make power supply for better realizing with dryelement cell, motor 482 is preferably selected the small-power direct current micromotor that conforms to input supply voltage for use.As power supply its advantage is arranged with dryelement cell, for example some place does not have the forceful electric power facility, uses the water heater of dryelement cell as power supply so, can realize having a bath, and does not more have the security threat of forceful electric power.Also have the water heater of encamping and using as open-air, extremely convenient with dryelement cell as power supply, satisfied the camping amateur, or the like.
[description of drawings].
Fig. 1 is a structural drawing of the present invention;
Fig. 2 is the F-F sectional view of Fig. 1;
Fig. 3 temperature adjustment valve body, interstage valve, water valve valve-body partial sectional view.
[embodiment]
Be described in further detail below in conjunction with accompanying drawing and mode of execution of the present invention:
Referring to Fig. 1-3; The present invention is a kind of gas water-heater automatic temperature-control voltage stabilizing aqueous vapor interstage valve, comprises temperature adjustment valve body 1, interstage valve 2, water valve valve-body 3, and water valve valve-body 3 comprises water transfer mechanism 31, water intake 32, hydraulic drive mechanism 33; Water valve constant-current stabilizer 34; Interstage valve 2 is provided with linking mechanism 21, sensitive switch 22, combustion gas outlet 23 eventually, and hydraulic drive mechanism 33 connects linking mechanism 21, and linking mechanism is stirred sensitive switch 22; Be provided with gas outlet passage 11, combustion gas plemum 12, the first road valve passage 13, intake interface 14 in the temperature adjustment valve body 1; Gas outlet passage 11 and combustion gas are provided with the second road valve 111 of both break-makes of control eventually between the outlet 23; The second road valve connects the linking mechanism 21 that drives its motion; Be communicated with by gas valve doorway 121 between gas outlet passage 11, the combustion gas plemum 12, the gas valve doorway is provided with the gaseous-pressure stabipack 4 of control gas flow, and combustion gas plemum 12 is communicated with the first road valve passage 13; Be provided with the solenoid valve 15 of controlling both break-makes between the first road valve passage 13 and the intake interface 14, the action of solenoid valve is controlled by sensitive switch 22.The action of solenoid valve is controlled by matching used computer controller.
When using, at first open the cold valves that feeds water heater, tap water gets into water valve valve-body 3 from water intake 32; Under the effect of hydraulic drive mechanism 33, promote linking mechanism 21, linking mechanism 21 is stirred sensitive switch 22; Sensitive switch 22 is given signal of computer controller; The solenoid valve 15 on the temperature adjustment valve body 1 is opened in computer controller work, combustion gas by intake interface 14 get into, through the first road valve passage 13, combustion gas plemum 12; The work of gaseous-pressure stabipack 4 is controlled in instruction according to computer controller sends, enters into gas outlet passage 11 thereby control gas flow; Simultaneously, linking mechanism 21 drives 111 motions of the second road valve, and gas outlet passage 11 is communicated with between the outlet 23 with combustion gas eventually, and combustion gas comes out to be reached the temperature-adjusting constant temperature effect by the ignition utilization from the whole outlet 23 of combustion gas.When closing when feeding the water heater cold water valve, the first road valve passage 13, the second road valve 111 are closed, and water heater quits work.
Said gaseous-pressure stabipack 4 comprises air film air chamber 41, combustion gas negative pressure chamber 42, pressure reduction transmission membrane 43, gas control valve door 44, transmission shaft 45, Returnning spring 46, gas flow Regulation spring 47, slide block 48, screw rod 481, motor 482;
Air film air chamber 41 communicates through plemum pressure-taking hole 411 with combustion gas plemum 12, is separated by pressure reduction transmission membrane 43 between air film air chamber 41 and the combustion gas negative pressure chamber 42; The one side of pressure reduction transmission membrane 43 is supported by the Returnning spring 46 that is arranged in the air film air chamber 41; The one side of pressure reduction transmission membrane 43 connects an end of transmission shaft 45 simultaneously; The other end of transmission shaft 45 connects gas control valve door 44, and gas control valve door 44 cooperates with gas valve doorway 121; Pressure reduction transmission membrane 43 another sides are supported by gas flow Regulation spring 47, and gas flow Regulation spring 47 another sides are withstood by slide block 48, and the screw rod 481 that motor 482 drives is housed in the slide block 48.
Combustion gas negative pressure chamber 42 communicates with barometric pressure through exhaust port 421, and combustion gas negative pressure chamber also establishes 42 inside chute 422 and supplies slide block 48 to slide.On combustion gas negative pressure chamber 42 1 end walls, set screw post 16 is housed, locality is parallel with screw rod 481.Regulate this set screw post 16 and come positioning sliding block 48 distance that resets, before dispatching from the factory, regulate.
Like Fig. 2, one, the present invention can realize that the combustion gas ratio is regulated and control temperature:
Pressure is the combustion gas of P1; Combustion gas is via intake interface 14; Through the first road valve passage 13 and solenoid valve 15 to combustion gas plemum 12 air feed; The gas of plemum 12 to air film air chamber 41, and forms gaseous-pressure through pressure reduction transmission membrane 43 and transmission shaft 45 through plemum pressure-taking hole 411 on gas control valve door 44, direction by D to C.When gaseous-pressure was nominal value, gas flow became certain proportional relation with gas control valve door 44 apertures.Make the aperture control of gas control valve door 44 only relevant with the displacement that slide block 48 moves through the adjusting to Returnning spring 46 and gas flow Regulation spring 47, the required gas flow of gas outlet is then controlled the certain proportion displacement gained of slide block 48 through rotating screw bolt 481 by motor 482.
When computer controller sends instruction will increase required gas flow the time; Motor 482 control screw rods 481 turn clockwise; Promote slide block 48 to reach, compressed gas Flow-rate adjustment spring 47 and pressure reduction transmission membrane 43 make transmission shaft 45 drive gas control valve door 44 and are moved to the left, and the aperture that increases gas valve doorway 121 increases P2; Thereby reach the gas flow value of wanting, realize control firepower size.Otherwise in like manner.
Two, the present invention can realize that the combustion gas ratio regulates steady pressure
When slide block 48 shift invariants, suction pressure P1 changes the change that will cause gas control valve door 44 apertures.The aperture of gas control valve door 44 is followed the variation of border supply gas pressure P1 factually to carry out ratio and is regulated automatically.Its proportionate relationship is determined by physical parameters such as the area of Returnning spring 46 and gas flow Regulation spring 47, pressure reduction transmission membrane 43 and fuel gas supply pressure jointly.
If the instantaneous rising of incoming pressure P1; Delivery pressure P2 and combustion gas plemum 12 pressure will increase; Air film air chamber 41 internal pressures are raise, the corresponding increase of thrust that on pressure reduction transmission membrane 43, produces, this thrust has been destroyed original equilibrium of forces; Pressure reduction transmission membrane 43 is moved to C by D, and the fraction air of combustion gas negative pressure chamber 42 is outwards drained through exhaust port 421.Pressure reduction transmission membrane 43 when C moves, because of the interlock effect of transmission shaft 45, is also moved gas control valve door 44 by D to C by D; Turn down gas valve doorway 121, throttling action strengthens, and delivery pressure is descended; Till reaching new balance; Delivery pressure is got back to original value basically again, like this, makes the gas outlet secondary press that P2 is constant (to guarantee that promptly the required gas flow of gas outlet is constant in certain scope) in certain scope.Thereby guarantee that water heater in use keeps water-exit temperature stable.If the instantaneous decline of incoming pressure, in like manner.
Said hydraulic drive mechanism 33 comprises moisture film sheet 331, return spring 332, the thimble 1 that is arranged in the water valve valve-body 3, and return spring, thimble one prop up the moisture film sheet, and thimble one the other end passes water valve valve-body 3.
Said linking mechanism 21 comprises fitting seat 211, driving lever 212, thimble 2 213; Driving lever, thimble two are inserted in the fitting seat; The driving lever the other end passes interstage valve 2 and contacts with sensitive switch 22, and thimble two the other ends connect the second road valve 111, and fitting seat is connected with thimble 1.
When using, at first open the cold valves that feeds water heater, tap water gets into water valve valve-body 3 from water intake 32, under the effect of hydraulic pressure, promotes moisture film sheet 331, promotes thimble 1 by the moisture film sheet; Promote fitting seat 211 by thimble one, fitting seat is stirred driving lever 212, and when stirring driving lever, driving lever is stirred sensitive switch 22, and sensitive switch 22 is given signal of computer controller, computer controller work; Fitting seat 211 promotes thimble 2 213 simultaneously, and thimble two is opened the second road valve 111, and gas outlet passage 11 exports 23 eventually with combustion gas and is communicated with.
Water transfer mechanism 31 comprises water transfer driven gear 311, water transfer driving gear 312.
Gas control valve door 44 is provided with the air valve aperture 441 that communicates with heat control valve gas outlet passage 11.Said gas valve doorway 121 is a horn mouth.Air valve aperture purpose on the gas control valve door 44 is in order to prevent that 44 adjustings of gas control valve door are too small better to the control of minimum thermal load, to cause fire extinguishing to be shut down.
Claims (8)
1. gas water-heater automatic temperature-control voltage stabilizing aqueous vapor interstage valve; Comprise temperature adjustment valve body (1), interstage valve (2), water valve valve-body (3); Be provided with gas outlet passage (11), combustion gas plemum (12), the first road valve passage (13), intake interface (14) in the temperature adjustment valve body (1); Gas outlet passage (11) and combustion gas are provided with the second road valve (111) of both break-makes of control eventually between the outlet (23); Be communicated with by gas valve doorway (121) between gas outlet passage (11), the combustion gas plemum (12); The gas valve doorway is provided with the gaseous-pressure stabipack (4) of control gas flow; Combustion gas plemum (12) is communicated with the first road valve passage (13); Be provided with the solenoid valve (15) of controlling both break-makes between the first road valve passage (13) and the intake interface (14), said gaseous-pressure stabipack (4) comprises air film air chamber (41), combustion gas negative pressure chamber (42), pressure reduction transmission membrane (43), gas control valve door (44), transmission shaft (45), Returnning spring (46), gas flow Regulation spring (47), slide block (48), screw rod (481), motor (482); Air film air chamber (41) communicates through plemum pressure-taking hole (411) with combustion gas plemum (12), is separated by pressure reduction transmission membrane (43) between air film air chamber (41) and the combustion gas negative pressure chamber (42); The one side of pressure reduction transmission membrane (43) is supported by the Returnning spring (46) that is arranged in the air film air chamber (41); The one side of pressure reduction transmission membrane (43) connects an end of transmission shaft (45) simultaneously; The other end of transmission shaft (45) connects gas control valve door (44), and gas control valve door (44) cooperates with gas valve (121); Pressure reduction transmission membrane (43) another side is supported by gas flow Regulation spring (47), and gas flow Regulation spring (47) another side is withstood by slide block (48), and the screw rod (481) that is driven by motor (482) is housed in the slide block (48).
2. gas water-heater automatic temperature-control voltage stabilizing aqueous vapor interstage valve according to claim 1 is characterized in that water valve valve-body (3) comprises water transfer mechanism (31), water intake (32), hydraulic drive mechanism (33), water valve constant-current stabilizer (34); Interstage valve (2) is provided with linking mechanism (21), sensitive switch (22), combustion gas outlet (23) eventually, and hydraulic drive mechanism (33) connects linking mechanism (21), and linking mechanism is stirred sensitive switch (22); The second road valve connects the linking mechanism (21) that drives its motion.
3. gas water-heater automatic temperature-control voltage stabilizing aqueous vapor interstage valve according to claim 1 and 2; It is characterized in that said combustion gas negative pressure chamber (42) communicates with barometric pressure through exhaust port (421), combustion gas negative pressure chamber (42) also establishes inside chute (422) and supplies slide block (48) to slide; On combustion gas negative pressure chamber (42) one end walls, set screw post (16) is housed, locality is parallel with screw rod (481).
4. gas water-heater automatic temperature-control voltage stabilizing aqueous vapor interstage valve according to claim 1 and 2 is characterized in that said gas control valve door (44) is provided with the air valve aperture (441) that communicates with heat control valve gas outlet passage (11).
5. gas water-heater automatic temperature-control voltage stabilizing aqueous vapor interstage valve according to claim 1 and 2 is characterized in that said gas valve doorway (121) is a horn mouth.
6. gas water-heater automatic temperature-control voltage stabilizing aqueous vapor interstage valve according to claim 2; It is characterized in that said hydraulic drive mechanism (33) comprises moisture film sheet (331), return spring (332), the thimble one (333) that is arranged in the water valve valve-body (3); Return spring, thimble one prop up the moisture film sheet, and thimble one the other end passes water valve valve-body (3).
7. gas water-heater automatic temperature-control voltage stabilizing aqueous vapor interstage valve according to claim 6; It is characterized in that said linking mechanism (21) comprises fitting seat (211), driving lever (212), thimble two (213); Driving lever, thimble two are inserted in the fitting seat; The driving lever the other end passes interstage valve (2) and contacts with sensitive switch (22), and thimble two the other ends connect the second road valve (111), and fitting seat is connected with thimble one (333).
8. gas water-heater automatic temperature-control voltage stabilizing aqueous vapor interstage valve according to claim 2 is characterized in that said water transfer mechanism (31) comprises water transfer driven gear (311), water transfer driving gear (312).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102813111A CN101943476B (en) | 2010-09-08 | 2010-09-08 | Automatic temp. -regulating pressure-stabilizing water-gas linkage valve for gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102813111A CN101943476B (en) | 2010-09-08 | 2010-09-08 | Automatic temp. -regulating pressure-stabilizing water-gas linkage valve for gas water heater |
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| Publication Number | Publication Date |
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| CN101943476A CN101943476A (en) | 2011-01-12 |
| CN101943476B true CN101943476B (en) | 2012-09-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10073071B2 (en) | 2010-06-07 | 2018-09-11 | David Deng | Heating system |
| US10222057B2 (en) | 2011-04-08 | 2019-03-05 | David Deng | Dual fuel heater with selector valve |
| CN102748504B (en) * | 2012-07-02 | 2014-01-01 | 普鲁卡姆电器（上海）有限公司 | Dual-gas supply gas valve |
| US9739389B2 (en) | 2011-04-08 | 2017-08-22 | David Deng | Heating system |
| CN102506198B (en) | 2011-10-20 | 2013-05-22 | 南京普鲁卡姆电器有限公司 | Dual-gas-source gas self-adaptive main control valve |
| CN110319593B (en) * | 2016-04-18 | 2021-07-09 | 芜湖美的厨卫电器制造有限公司 | Automatic flow adjusting device and gas water heater with same |
| CN107676960A (en) * | 2017-10-13 | 2018-02-09 | 广东万和新电气股份有限公司 | Gas heater and its control method |
| CN111828678B (en) * | 2020-07-20 | 2022-05-17 | 帕意尼(鹤山)卫浴科技有限公司 | Valve control tap |
| CN114877260B (en) * | 2022-04-13 | 2024-03-08 | 中海石油气电集团有限责任公司 | High compact LNG sampling gasification device with self-adaptation function |
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| US7562673B1 (en) * | 2005-04-25 | 2009-07-21 | Martin James B | Automatic flow shut-off system |
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| C56 | Change in the name or address of the patentee |
Owner name: VATTI CO., LTD. Free format text: FORMER NAME: ZHONGSHAN CITY HUADI COMBUSTION UTENSILS CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 528400 Guangdong Province, Zhongshan City Xiaolan Industrial Avenue South Road No. 1 Patentee after: Vatti Co., Ltd. Address before: 528400 Guangdong Province, Zhongshan City Xiaolan Industrial Avenue South Road No. 1 Patentee before: Zhongshan City Huadi Combustion Utensils Co., Ltd. |