CN203036641U - Gas-air mixing device and multi-gas-source gas control system with same - Google Patents
Gas-air mixing device and multi-gas-source gas control system with same Download PDFInfo
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- CN203036641U CN203036641U CN 201220707853 CN201220707853U CN203036641U CN 203036641 U CN203036641 U CN 203036641U CN 201220707853 CN201220707853 CN 201220707853 CN 201220707853 U CN201220707853 U CN 201220707853U CN 203036641 U CN203036641 U CN 203036641U
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- gas
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- air inlet
- mixing arrangement
- air mixing
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Abstract
The utility model discloses a gas-air mixing device. The gas-air mixing device comprises a tube body, wherein one end of the tube body is a high-calorific-value gas inlet, the other end of the tube body is a gas outlet, an air baffle with a gas inlet spraying nozzle is arranged in the position of the high-calorific-value gas inlet, and an air inlet window is formed in the tube wall, connected with the tube body, of the air baffle, so that the high-calorific-value gas inlet is capable of carrying air into the tube body in the gas inlet process. A notch is arranged in the position, far away from the air inlet window, of the tube body to serve as a low-calorific-value gas inlet, and the gas enters through a spraying nozzle. The utility model further provides a corresponding multi-gas-source gas control system by modifying the structure of the gas-air mixing device, the switching between high calorific value and low calorific value of multiple gas sources is achieved simply, the structure is simple, the manufacturing is simple and convenient, and hidden unsafe factors are overcome.
Description
Technical field
The utility model relates to a kind of gas-air mixing arrangement and many sources of the gas gas control system, more particularly, is many sources of the gas gas control system of a kind of gas-air mixing arrangement and band gas-air mixing arrangement.
Background technology
After the general burner typing, its " primary air ratio " is certain, and the combustion gas and the AIR Proportional that namely enter in the burner are certain substantially.Yet for desirable fuel gas buring effect, the needed AIR Proportional of the combustion gas of different calorific values is different, general high heating value need air capacity many, the low-calorie air capacity that needs is few.
So in the double-source gas system, just need to switch the structure of burner, adjust " primary air ratio ".For example, usually just like the way shown in Fig. 1 a, Fig. 1 b and Fig. 2 a, Fig. 2 b, Fig. 1 a and Fig. 1 b are by regulating the distance between air catch 1 and the body 2, the size of regulating air inlet window 3; Fig. 2 a and Fig. 2 b regulate the air inlet amount by at nozzle 4 places baffle plate 13 being set.It all is the size of regulating air inlet window 3 in essence, to change the purpose of primary air ratio.
But need manually or by other means to change the structure of burner like this, make it make difficulty, cost increases.In addition, also need the client to cooperate to make other actions to cooperate and to realize.This has just increased some potential unsafe factors.
The utility model content
Need to change burner structure owing to exist in the prior art, make difficulty and defective with high costs, the utility model proposes a kind of many sources of the gas gas control system with the novel gas air mixing device, it can effectively solve the problems referred to above of prior art.
The utility model addresses the above problem by the following technical programs:
A kind of gas-air mixing arrangement, this mixing arrangement comprises a body, and an end of this body is the high heating value gas inlet, and the other end is the gas outlet; Described high heating value gas inlet place is provided with an air catch that has a nozzle of air inlet, offers an air inlet window on this air catch and the tube wall that described body links to each other, and the portability air enters described body when making described high heating value air inlet air inlet; On described body, offer a breach as the fuel gas with low heat value air inlet away from described air inlet window place, and by a nozzle air inlet.
Be made as venturi type air mixing tube between described air inlet window and the described breach.
Outwards connect behind the pipeline air inlet with this pipeline as the fuel gas with low heat value air inlet by described breach.
Be provided with a venturi type air mixing tube between described fuel gas with low heat value air inlet and the described breach.
This gas control system comprises pressure-reducing valve, some fire safety devices, control valve, igniter, burner and gas-air mixing arrangement.
Wherein, described pressure-reducing valve is provided with two gas source air inlet, and is connected with described some fire safety devices, control valve and gas-air mixing arrangement respectively by pipeline; Described some fire safety devices is provided with two air inlets, and two air inlets of described some fire safety devices link to each other with pressure-reducing valve by pipeline, and this fire safety devices also connects described igniter and control valve; Described gas-air mixing arrangement, its gas outlet end connects described burner, and described fuel gas with low heat value import is connected with described pressure-reducing valve; Described control valve, it comprises an air inlet and two gas outlets, the air inlet of described control valve is connected with described pressure-reducing valve respectively with a gas outlet wherein, another gas outlet of described control valve links to each other with described high heating value gas inlet with described pressure-reducing valve respectively after connecting a threeway, and this control valve is also controlled described some fire safety devices.
Since the utility model by changing the gas-air mixing arrangement structure and provide a cover corresponding many sources of the gas gas control system, can simply realize high heating value and the low-calorie conversion of many sources of the gas, simple in structure, simple for production, and can overcome potential unsafe factor.
Description of drawings
Fig. 1 a, Fig. 2 a are the duties of gas-air mixing arrangement during the high heating value combustion gas in the prior art.
Fig. 1 b, Fig. 2 b are the duties of gas-air mixing arrangement during fuel gas with low heat value in the prior art.
Duty schematic diagram when Fig. 3 a, Fig. 4 a are gas-air mixing arrangement high heating value combustion gas of the present utility model.
Duty schematic diagram when Fig. 3 b, Fig. 4 b are gas-air mixing arrangement fuel gas with low heat value of the present utility model.
Fig. 5 a is the main diagram of gas control system of the present utility model.
Fig. 5 b is the vertical view of gas control system of the present utility model.
Fig. 6 a is the schematic diagram of gas-air mixing arrangement of the present utility model.
Fig. 6 b is the cutaway view of gas-air mixing arrangement of the present utility model.
Fig. 6 c is the cutaway view of another embodiment of gas-air mixing arrangement of the present utility model.
Fig. 7 a when connecing liquefied gas, the trend of gas of the present utility model.
Fig. 7 b when connecing liquefied gas, the cutaway view of the working state figure of gas-air mixing arrangement of the present utility model.
Fig. 8 a is many sources of the gas gas control system of band novel gas air mixing device of the present utility model when connecing natural gas, the trend of gas.
Fig. 8 b is many sources of the gas gas control system of band novel gas air mixing device of the present utility model when connecing natural gas, the cutaway view of the working state figure of novel gas air mixing device.
The specific embodiment:
Below in conjunction with the specific embodiment, describe the utility model in detail.
Shown in Fig. 6 a and Fig. 6 b, be schematic diagram and the cutaway view of gas-air mixing arrangement of the present utility model.
A kind of gas-air mixing arrangement 5 comprises a body 2, and an end of this body 2 is high heating value gas inlet 52, and the other end is gas outlet 51; Described high heating value gas inlet 52 places are provided with an air catch 1 that has a nozzle 4 of air inlet, offer an air inlet window 3 on this air catch 1 and the tube wall that described body 2 links to each other, the portability air enters described body 2 when making described high heating value air inlet 52 air inlets; On described body 2, offer a breach 6 as fuel gas with low heat value air inlet 53 away from described air inlet window 3 places, and by a nozzle 4 air inlets, do not carry air when making 53 air inlets of fuel gas with low heat value air inlet and enter.
Be made as venturi type air mixing tube 21 between described air inlet window 3 and the described breach 6, air and the combustion gas that enters in the body 2 mixed.
Shown in Fig. 6 c, the cutaway view of another embodiment of gas-air mixing arrangement of the present utility model.After outwards connecting pipelines by described breach 6 on the basis of Fig. 6 b with the air inlet of this pipeline as fuel gas with low heat value air inlet 53.Between described fuel gas with low heat value air inlet 53 and described breach 6, be provided with simultaneously a venturi type air mixing tube 21.
Shown in Fig. 5 a and Fig. 5 b, be front view and the vertical view of gas control system of the present utility model.
Among the figure, this gas control system comprises pressure-reducing valve 7, some fire safety devices 8, control valve 9, igniter 10, burner 11 and gas-air mixing arrangement 5.
Wherein, described pressure-reducing valve 7 is provided with two gas source air inlet 71 and 72, and is connected with described some fire safety devices 8, control valve 9 and gas-air mixing arrangement 5 respectively by pipeline;
Described some fire safety devices 8 is provided with two air inlets 81 and 82, and two air inlets 81 of described some fire safety devices 8 link to each other with pressure-reducing valve 7 by pipeline with 82, and this fire safety devices 8 also connects described igniter 10 and control valve 9;
Described gas-air mixing arrangement 5, its gas outlet 51 connects described burner 11, and described fuel gas with low heat value import 53 is connected with described pressure-reducing valve 4;
Described control valve 9, it comprises an air inlet 91 and two gas outlets 92 and 93, the air inlet 91 of described control valve 9 is connected with described pressure-reducing valve 7 by pipeline respectively with a gas outlet 92 wherein, link to each other with described high heating value gas inlet 52 with described pressure-reducing valve 7 respectively after another gas outlet 93 of described control valve 9 connects a threeway 12, this control valve 9 is also controlled described some fire safety devices 8.
Shown in Fig. 7 a, when connecing liquefied gas for many sources of the gas gas control system of the present utility model, the trend of gas.Open the switch 711 of the control liquefied gas on the pressure-reducing valve 7, make liquefied gas begin to enter pressure-reducing valve 7, the air inlet 91 back redistribution section liquefied gas that are transported to control valve 9 by pipeline are got back to the air inlet 81 that is transported to a fire safety devices 8 behind the pressure-reducing valve 7 again via pipeline.Simultaneously control valve 9 also the distribution portion liquefied gas be transported in the pressure-reducing valve 7 respectively through a threeway 12 and in the high heating value fuel gas inlet 52 of gas-air mixing arrangement 5.The liquefied gas that enters in the pressure-reducing valve 7 can not pass through, and enters to be transported to burner 11 after high heating value fuel gas inlet 52 interior liquefied gas mix with liquefied gas with by the air that air inlet window 3 enters through the venturi type air mixing tubes 21 in the gas-air mixing arrangement 5.
Shown in Fig. 7 b, Fig. 3 a and Fig. 4 a, when connecing liquefied gas, high heating value gas inlet 52 is brought air simultaneously into and is entered in the gas-air mixing arrangement 5, the 53 not air inlets of low heat value air inlet by nozzle 4 air inlets.Entering air in the gas-air mixing arrangement 5 and the ratio of combustion gas this moment is V
Air/ V
High
Shown in Fig. 8 a, when connecing natural gas for gas control system of the present utility model, the trend of gas.Open the switch 721 of the control natural gas on the pressure-reducing valve 7, make natural gas begin to enter pressure-reducing valve 7, the air inlet 91 back redistribution section natural gases that are transported to control valve 9 by pipeline are got back to the air inlet 82 that is transported to a fire safety devices 8 behind the pressure-reducing valve 7 again via pipeline.Simultaneously control valve 9 also the distribution portion natural gas be transported in the pressure-reducing valve 7 respectively through a threeway 12 and in the high heating value fuel gas inlet 52 of gas-air mixing arrangement 5.Enter natural gas in the pressure-reducing valve 7 again in pipeline is transported to the fuel gas with low heat value import 53 of gas-air mixing arrangement 5, enter and be transported to burner 11 after liquefied gas in the high heating value fuel gas inlet 52 mix with liquefied gas with by the air that air inlet window 3 enters through the venturi type air mixing tubes 21 in the gas-air mixing arrangement 5.
Shown in Fig. 8 b, Fig. 3 b and Fig. 4 b, when connecing natural gas, fuel gas with low heat value air inlet 53 and high heating value gas inlet 52 are respectively through nozzle 4 air inlets simultaneously, simultaneously the nozzle 4 at high heating value gas inlet 52 places is brought air into and is entered in the gas-air mixing arrangement 5, and fuel gas with low heat value air inlet 53 place's nozzles 4 are owing to can not bring air into away from air inlet window 3, so the air that enters this moment in the gas-air mixing arrangement 5 only becomes fixed proportion V with the combustion gas at nozzle 4 places at high value gas inlet 52 places
Empty/ V
Low 1, add the combustion gas V at fuel gas with low heat value air inlet 53 place's nozzles 4 places
Low 2, then total " primary air ratio " is V
Empty/ (V
Low 1+ V
Low 2).
When general burner is finalized the design, V
Empty/ V
HighBasically with V
Empty/ V
Low 1Equate, so, V
Empty/ (V
Low 1+ V
Low 2)＜V
Empty/ V
High, like this, need not change structure with regard to having realized same burner, be applicable to the combustion gas of two kinds of different calorific values simultaneously.
Should be understood that these embodiments only are used for explanation the utility model and are not used in the scope of the present utility model that limits.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (6)
1. gas-air mixing arrangement, it is characterized in that: this mixing arrangement comprises a body, and an end of this body is the high heating value gas inlet, and the other end is the gas outlet; Described high heating value gas inlet place is provided with an air catch that has a nozzle of air inlet, offers an air inlet window on this air catch and the tube wall that described body links to each other, and the portability air enters described body when making described high heating value air inlet air inlet; On described body, offer a breach as the fuel gas with low heat value air inlet away from described air inlet window place, and by a nozzle air inlet.
2. gas-air mixing arrangement according to claim 1 is characterized in that: be made as venturi type air mixing tube between described air inlet window and the described breach.
3. gas-air mixing arrangement according to claim 1 and 2 is characterized in that: outwards connect behind the pipeline air inlet with this pipeline as the fuel gas with low heat value air inlet by described breach.
4. according to the described gas-air mixing arrangement of claim 3, it is characterized in that: be provided with a venturi type air mixing tube between described fuel gas with low heat value air inlet and the described breach.
5. a gas control system that has an any described gas-air mixing arrangement of claim 1-4, it is characterized in that: this gas control system comprises pressure-reducing valve, some fire safety devices, control valve, igniter, burner and gas-air mixing arrangement.
6. gas control system according to claim 5, it is characterized in that: wherein, described pressure-reducing valve is provided with two gas source air inlet, and is connected with described some fire safety devices, control valve and gas-air mixing arrangement respectively by pipeline; Described some fire safety devices is provided with two air inlets, and two air inlets of described some fire safety devices link to each other with pressure-reducing valve by pipeline, and this fire safety devices also connects described igniter and control valve; Described gas-air mixing arrangement, its gas outlet end connects described burner, and described fuel gas with low heat value import is connected with described pressure-reducing valve; Described control valve, it comprises an air inlet and two gas outlets, the air inlet of described control valve is connected with described pressure-reducing valve respectively with a gas outlet wherein, another gas outlet of described control valve links to each other with described high heating value gas inlet with described pressure-reducing valve respectively after connecting a threeway, and this control valve is also controlled described some fire safety devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707853 CN203036641U (en) | 2012-12-19 | 2012-12-19 | Gas-air mixing device and multi-gas-source gas control system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707853 CN203036641U (en) | 2012-12-19 | 2012-12-19 | Gas-air mixing device and multi-gas-source gas control system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203036641U true CN203036641U (en) | 2013-07-03 |
Family
ID=48688760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220707853 Expired - Lifetime CN203036641U (en) | 2012-12-19 | 2012-12-19 | Gas-air mixing device and multi-gas-source gas control system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203036641U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017170A (en) * | 2012-12-19 | 2013-04-03 | 普鲁卡姆电器（上海）有限公司 | Multi-gas source gas control system with gas-air mixing device |
| CN114060184A (en) * | 2020-07-31 | 2022-02-18 | 比亚迪股份有限公司 | Water-gas mixing device and engine |
-
2012
- 2012-12-19 CN CN 201220707853 patent/CN203036641U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017170A (en) * | 2012-12-19 | 2013-04-03 | 普鲁卡姆电器（上海）有限公司 | Multi-gas source gas control system with gas-air mixing device |
| CN114060184A (en) * | 2020-07-31 | 2022-02-18 | 比亚迪股份有限公司 | Water-gas mixing device and engine |
| CN114060184B (en) * | 2020-07-31 | 2023-04-07 | 比亚迪股份有限公司 | Water-gas mixing device and engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
|
| CX01 | Expiry of patent term |