CN2851872Y - Secure air and gas premixing apparatus - Google Patents
Secure air and gas premixing apparatus Download PDFInfo
- Publication number
- CN2851872Y CN2851872Y CN 200520067014 CN200520067014U CN2851872Y CN 2851872 Y CN2851872 Y CN 2851872Y CN 200520067014 CN200520067014 CN 200520067014 CN 200520067014 U CN200520067014 U CN 200520067014U CN 2851872 Y CN2851872 Y CN 2851872Y
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- gas
- air
- combustion
- complete
- combustion gas
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Abstract
The utility model provides a novel complete air and gas premixing apparatus capable of realizing complete premix of the air and the gas, and particularly providing necessary conditions for complete premixing combustion. The utility model is composed of a motor, a wind wheel, a mixing cavity, an air leading-in part, a gas supply part, etc. The motor drives the wind wheel arranged in the mixing cavity to rotate at certain speed so as to generate the airflow with high energy. After a certain amount of gas enters the mixing cavity from the position of a gas nozzle of the gas supply part through the injection of the air with high energy so as to be premixed completely, the premixed air and gas is sent into a burner for burning. The application of the complete air and gas premixing apparatus solves the problem of the complete air and gas premixing supply required by the complete premixing combustion mode. Owing to the adoption of the fully novel mode of inducing and ejecting the gas by the air, the utility model ensures more uniform and sufficient air and gas mixture. Meanwhile, the size of the gas quantity forms linear variation along with the variation of the rotation speed of the wind wheel. As a consequence, the utility model can conveniently adjust the size of heat load of burners by controlling the rotation speed of the motor.
Description
Technical field
The utility model belongs to the gas heater and the gas two-purpose field of boilers of household electrical appliance, particularly relates to a kind of be used for realizing on gas heater and the gas two-purpose boiler air and the fully premixed device of combustion gas.
Technical background
Partly-premixed combustion system design is generally generally adopted in the burning of existing domestic gas-fired water heater and gas two-purpose boiler, the mode of combustion gas injection air that generally adopts the fuel gas supply of this partly-premixed burner realizes that combustion gas and air mix, because the restriction of supply gas pressure makes by the combustion gas finite energy of gas nozzle ejection, be difficult to the needed air capacity of injection completing combustion, need replenishing of auxiliary air in the combustion process, because the restriction of this structure, thereby can only adopt partly-premixed combustion system and can't realize fully premixed combustion system.This partly-premixed combustion system and full premix combustion mode more also come with some shortcomings: combustion gas mixing portion air before burning at first needs auxiliary air to replenish incomplete combustion during burning; Secondly, its excess air coefficient is big (being generally 1.3-1.8), and combustion flame temperature is lower; In addition, since the chemically incomplete combustion of combustion gas, the CO of generation, and pernicious gas content such as NOx are higher, do not meet the environmental protection demand.
Summary of the invention
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of and can realize the necessary air of fully premixed combustion system, the full premix feedway of combustion gas.
The technical scheme of the utility model air, the full pre-mixing apparatus of combustion gas is: a kind of air, the full pre-mixing apparatus of combustion gas, comprise fuel gas supply part and the air lead-in portion that is provided with air intake, gas nozzle in the fuel gas supply part is connected with fuel gas inlet by fuel gas path, it is characterized in that: gas nozzle, air intake are connected with air, combustion gas mixing mechanism by the air ejection combustion gas.
Described air, combustion gas mixing mechanism comprise hybrid chamber, are arranged on the wind wheel in the hybrid chamber and are arranged on the motor that hybrid chamber drives the wind wheel rotation outward; Described hybrid chamber is fixed on the fuel gas supply part, and hybrid chamber is provided with the mixed gas outlet of air and combustion gas.
Especially, described motor is a dc brushless motor.
As further improvement of the utility model, described fuel gas path is provided with more than one burnt gas switch.
Specifically, the burnt gas switch that described fuel gas path is provided with is two magnetic valves, also is being provided with the metastable gas pressure device on the fuel gas path between these two burnt gas switch magnetic valves.Like this, the burnt gas switch magnetic valve cuts out fuel gas path rapidly during accident extinguishing, and pressure makes at wind speed round one regularly not because of the change of supply gas pressure changes before the gas nozzle, keeps constant by the gas quantity of injection by gas nozzle.
Further improve as of the present utility model, the fuel gas path between described metastable gas pressure device and one of them the burnt gas switch magnetic valve is provided with air volume regulating device.When source of the gas changes, can make suitable adjusting, and needn't change other parts by air volume regulating device.
The beneficial effects of the utility model are, by direct current generator and wind wheel are set, the necessary air of full premix combustion mode, the full premix supply of combustion gas have been solved, the wind wheel that driven by motor places hybrid chamber produces the high-energy air-flow with certain rotating speed rotation, and the fuel gas inlet place in the fuel gas supply part is entered hybrid chamber and sends in the burner after fully premixed and burn by a certain amount of combustion gas of high-octane air ejection.Owing to adopt the brand-new mode of air ejection combustion gas, make air and combustion gas mixing more evenly fully, the size of while gas quantity is linear change with motor (both wind wheels) change in rotational speed, can regulate burner thermic load size by the control motor speed easily.
Description of drawings
Fig. 1 is the front view of this practical air, the full pre-mixing apparatus of combustion gas;
Fig. 2 is the cutaway view of Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples the utility model air, the full pre-mixing apparatus of combustion gas are described further.Shown in accompanying drawing 1,2, thisly air and the fully premixed device of combustion gas be can realize, motor 1, wind wheel 2, mixed chamber 3, the air lead-in portion 15 that is provided with air intake 4, mixed gas outlet 11 and the fuel gas supply part that is provided with fuel gas inlet 5, magnetic valve 6, metastable gas pressure device 7, gas quantity adjusting device 8, magnetic valve 9, gas nozzle 10 comprised.Wind wheel 2 is installed in the hybrid chamber 3, and the output shaft of motor 1 and wind wheel 2 be coaxial to be connected or by being in transmission connection, hybrid chamber 3 is fixedly connected on the fuel gas supply part, and the bottom of hybrid chamber 3 is provided with the mixed gas outlet 11 of air and combustion gas.Form blast tube 14 between the fuel gas inlet 5 of fuel gas supply part and the gas nozzle 10, on blast tube 14, be provided with metastable gas pressure device 7, on the place ahead of metastable gas pressure device 7 and rear blast tube 14, be respectively equipped with burnt gas switch magnetic valve 6 and 9, also be provided with a gas quantity adjusting device at burnt gas switch magnetic valve 9 and metastable gas pressure device 7.
The master controller (not shown) is according to inflow temperature, these three groups of data of leaving water temperature that discharge and user set calculate the thermic load size automatically and give the certain magnitude of voltage of motor 1 input (under certain thermic load the correspondent voltage value being arranged), motor 1 rotates with certain rotating speed under given magnitude of voltage, the wind wheel 2 that drives in the hybrid chamber 3 produces a certain amount of high-energy air air-flow with the rotating speed rotation of identical or a certain ratio, and this high-energy air air communication crosses that a certain amount of combustion gas of gas nozzle 10 injections enters that hybrid chamber 3 mixes fully after mixed air exports 11 sends in the burner (not shown) and burn.The size of the gas quantity of injection is linear change with motor 1 (both wind wheel 3) change in rotational speed, can regulate burner thermic load size by control motor 1 rotating speed easily.
On fuel gas path 14, be provided with metastable gas pressure device 7 and two burnt gas switch magnetic valves 6 and 9, like this, burnt gas switch magnetic valve 6 cuts out fuel gas path 14 rapidly during accident extinguishing, rely on metastable gas pressure device 7, pressure does not change because of the change of supply gas pressure before the gas nozzle 10, make regularly, keep constant by the gas quantity of injection by gas nozzle 11 at wind wheel 2 rotating speeds one.And the fuel gas path 14 between metastable gas pressure device 7 and the burnt gas switch magnetic valve 9 is provided with air volume regulating device 8.When source of the gas changes, can make suitable adjusting, and needn't change other parts by air volume regulating device 8.
The technical solution of the utility model is not limited to and is used for gas heater and gas two-purpose boiler, can be applied to similar field according to the actual needs.
Claims (6)
1. an air, the full pre-mixing apparatus of combustion gas, comprise fuel gas supply part (12) and be provided with the air lead-in portion (15) of air intake (4), gas nozzle (10) in the fuel gas supply part (12) is connected with fuel gas inlet (5) by fuel gas path (14), it is characterized in that: gas nozzle (10), air intake (4) are connected with air, combustion gas mixing mechanism (13) by the air ejection combustion gas.
2. air according to claim 1, the full pre-mixing apparatus of combustion gas is characterized in that: described air, combustion gas mixing mechanism (13) comprise hybrid chamber (3), are arranged on the wind wheel (2) in the hybrid chamber (3) and are arranged on the outer motor (1) that drives wind wheel (2) rotation of hybrid chamber (3); Described hybrid chamber (3) is fixed on the fuel gas supply part (12), and hybrid chamber (3) is provided with the mixed gas outlet (11) of air and combustion gas.
3. air according to claim 2, the full pre-mixing apparatus of combustion gas is characterized in that: described motor (1) is a dc brushless motor.
4. according to each described air of claim 1 to 3, the full pre-mixing apparatus of combustion gas, it is characterized in that: described fuel gas path (14) is provided with more than one burnt gas switch.
5. air according to claim 4, the full pre-mixing apparatus of combustion gas, it is characterized in that: the burnt gas switch that described fuel gas path (14) is provided with is two magnetic valves (6,9), also is provided with metastable gas pressure device (7) on the fuel gas path (14) between these two burnt gas switch magnetic valves (6,9).
6. air according to claim 5, the full pre-mixing apparatus of combustion gas is characterized in that: the fuel gas path (14) between described metastable gas pressure device (7) and one of them the burnt gas switch magnetic valve is provided with air volume regulating device (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520067014 CN2851872Y (en) | 2005-11-08 | 2005-11-08 | Secure air and gas premixing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520067014 CN2851872Y (en) | 2005-11-08 | 2005-11-08 | Secure air and gas premixing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851872Y true CN2851872Y (en) | 2006-12-27 |
Family
ID=37585830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520067014 Expired - Lifetime CN2851872Y (en) | 2005-11-08 | 2005-11-08 | Secure air and gas premixing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2851872Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818746A (en) * | 2009-02-27 | 2010-09-01 | 德昌电机(深圳)有限公司 | Premixing boiler fan |
| CN108144464A (en) * | 2018-03-01 | 2018-06-12 | 佛山市骏渔信息科技有限公司 | A kind of gas of gas range mixing arrangement |
-
2005
- 2005-11-08 CN CN 200520067014 patent/CN2851872Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818746A (en) * | 2009-02-27 | 2010-09-01 | 德昌电机(深圳)有限公司 | Premixing boiler fan |
| CN108144464A (en) * | 2018-03-01 | 2018-06-12 | 佛山市骏渔信息科技有限公司 | A kind of gas of gas range mixing arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528415 Jiuzhou Town, Xiaolan Town, Guangdong City, Zhongshan Province Patentee after: Vatti Co., Ltd. Address before: 528415 Jiuzhou Town, Xiaolan Town, Guangdong City, Zhongshan Province Patentee before: Zhongshan City Huadi Combustion Utensils Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061227 |
|
| EXPY | Termination of patent right or utility model |