CN209279157U - Full premix combustion control system - Google Patents
Full premix combustion control system Download PDFInfo
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- CN209279157U CN209279157U CN201821374737.XU CN201821374737U CN209279157U CN 209279157 U CN209279157 U CN 209279157U CN 201821374737 U CN201821374737 U CN 201821374737U CN 209279157 U CN209279157 U CN 209279157U
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- pressure
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- burner
- base board
- gas
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Abstract
The utility model provides full premix combustion control system, including blower, burner, gas valve and control base board；The air outlet of the blower is connected by air flue and burner, and the gas outlet of the gas valve is connected by fuel gas path and burner, is equipped with pressure tap on air flue and fuel gas path；Full premix combustion control system further includes a differential pressure pickup, differential pressure pickup is connect with two pressure taps, for measuring the pressure difference between two pressure taps, and pressure difference is passed into control base board by signal, for control base board according to the signal received, the aperture of the revolving speed or gas valve that adjust blower makes the pressure difference of air flue and fuel gas path be zero.The utility model can initiatively adjustment of combustion gas flow or air mass flow, and the flow of an other side is adjusted according to pressure differential detection result, to guarantee that combustion system is constantly in correct air-fuel ratio.
Description
Technical field
The utility model relates to burner arts, in particular to full premix combustion control system.
Background technique
The country of requirement with to(for) environmental protection increasingly improves, and energy-efficient has been the theme of electrical appliance industry and development
Direction, full premix combustion technology have high burning efficiency, and high combustion intensity simultaneously has low NOx and low CO discharge etc.
Advantage is to become the emphasis direction of gas utensil industry from now on.
Full premix combustion is to complete combustion gas before burner to mix with whole air needed for burning, through fire hole after-combustion
Without the supplement of auxiliary air, so guaranteeing that stable air-fuel ratio is vital, current full premix combustion control
Scheme is provided by Ji Jia offshore company.
Shown in Figure 1, air enters injector 90 through blower, and pressure change, air pressure and combustion are generated at injector
The regulating valve of air valve 30 connects, and the gas valve 30 that combustion gas passes through mixes with air at injector 90, by adjusting regulating valve
Spring can guarantee that air capacity and gas quantity meet suitable ratio；Gaseous mixture is fired after entering burner 20 by fire hole
It burns, control base board 40 can adjust air quantity by adjusting 10 revolving speed of blower to change the size of thermic load, in the process of variation
The middle stabilization for keeping air-fuel ratio.
Currently existing scheme only adjusts blower, and combustion gas belongs to passive mechanical adjusting, so have the shortcomings that adjustable range is small,
It is likely to occur the drift of air-fuel ratio after going beyond the scope, causes reducing for efficiency of combustion exceeded with discharge.Meanwhile gas valve is answered
Miscellaneous gas circuit is also due to phenomena such as gas source impurity generates blocking.
Utility model content
The technical problem to be solved by the present invention is to provide it is a kind of can initiatively adjustment of combustion gas flow according to pressure difference ratio
Or the full premix combustion control system of air mass flow.
In order to achieve the above objectives, the technical solution of the utility model is as follows:
Full premix combustion control system, including blower, burner, gas valve and control base board；The outlet air of the blower
Mouth is connected by air flue and burner, and the gas outlet of the gas valve is connected by fuel gas path and burner, and air is logical
Pressure tap is equipped on road and fuel gas path；Full premix combustion control system further includes a differential pressure pickup, differential pressure pickup with
Two pressure tap connections, pass to control base by signal for measuring the pressure difference between two pressure taps, and by pressure difference
Plate, for control base board according to the signal received, the aperture of the revolving speed or gas valve that adjust blower makes air flue and combustion gas logical
The pressure difference on road is zero.
Through the above technical solutions, the beneficial effects of the utility model are:
Traffic conditions can be monitored in real time in the utility model, initiatively adjustment of combustion gas flow or air mass flow, control base
Plate adjusts the flow of an other side according to the pressure differential detection result of differential pressure pickup, to guarantee that combustion system is constantly in just
True air-fuel ratio.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is existing full premix combustion control system working principle diagram；
Fig. 2 is the utility model full premix combustion control system working principle diagram；
10, blower 11, air outlet 20, burner 30, gas valve 31, gas outlet 40, control base board 50, air flue 60,
Fuel gas path 70, pressure tap 80, differential pressure pickup 90, injector.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Shown in Figure 2, the utility model discloses full premix combustion control systems, including blower 10, burner 20, combustion
Air valve 30 and control base board 40；The air outlet 11 of blower 10 is connected by air flue 50 and burner 20, gas valve 30
Gas outlet 31 is connected by fuel gas path 60 and burner 20, is equipped with pressure tap 70 on air flue 50 and fuel gas path 60；
Full premix combustion control system further includes a differential pressure pickup 80, and differential pressure pickup 80 is connect with two pressure taps 70, for surveying
It measures the pressure difference between two pressure taps, and pressure difference is passed into control base board 40 by signal, control base board 40 is according to connecing
The aperture of the signal received, the revolving speed or gas valve 30 that adjust blower 10 makes air flue 50 and the pressure difference of fuel gas path 60 is
Zero；To meet suitable air-fuel ratio, if you need to the variation of thermic load, control base board 40 can actively regulate blower or gas valve
Change air capacity or gas quantity, controls an other side while variation and the result of differential pressure pickup is made to be zero.
The utility model cooperates control base board that can initiatively adjust using the full-time variation for monitoring flow of differential pressure pickup
Gas fuel saving flow or air mass flow, and the flow of an other side is adjusted according to pressure differential detection result, to guarantee to burn
System is constantly in correct air-fuel ratio；Meanwhile blower and combustion gas are common product than valve, can reduce system cost；
Since flow adjusting is not passive mechanical adjusting, heat load adjustment range is big, and air-fuel ratio is stablized.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (1)
1. full premix combustion control system, including blower, burner, gas valve and control base board；It is characterized in that, the wind
The air outlet of machine is connected by air flue and burner, and the gas outlet of the gas valve is connect by fuel gas path and burner
It is logical, pressure tap is equipped on air flue and fuel gas path；Full premix combustion control system further includes a differential pressure pickup, pressure difference
Sensor is connect with two pressure taps, is transmitted for measuring the pressure difference between two pressure taps, and by pressure difference by signal
To control base board, control base board makes air flue according to the signal received, the aperture of the revolving speed or gas valve that adjust blower
Pressure difference with fuel gas path is zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821374737.XU CN209279157U (en) | 2018-08-24 | 2018-08-24 | Full premix combustion control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821374737.XU CN209279157U (en) | 2018-08-24 | 2018-08-24 | Full premix combustion control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209279157U true CN209279157U (en) | 2019-08-20 |
Family
ID=67598891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821374737.XU Active CN209279157U (en) | 2018-08-24 | 2018-08-24 | Full premix combustion control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209279157U (en) |
-
2018
- 2018-08-24 CN CN201821374737.XU patent/CN209279157U/en active Active
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| GR01 | Patent grant |