CN101832584A - Long blast pipe gas stove used for reformation of coal and firewood stove - Google Patents

Abstract

The invention relates to a long blast pipe gas stove used for the reformation of a coal and firewood stove, which is provided with an extended blast pipe and can conveniently reform the coal and firewood stoves used in vast rural areas into the gas stoves, and particularly into methane stoves. The invention is suitable for the current situation of the rural areas and can save large amount of reformation fund. The long blast pipe gas stove is also provided with a high-efficiency environmental-protection combustor, a high-performance safety protection device and a mighty electric fire maker, which is in accordance with the technological development direction of the current high-performance gas appliances.

Description

Long blast pipe gas stove for retrofitting coal wood stove

Technical field: a gas stove with a long blast pipe (hereinafter referred to as a gas stove with a long blast pipe) which can be used for the transformation of coal stoves, which belongs to the field of gas stoves and is used for cooking and heating.

Technical background: At present, the vast rural areas are vigorously developing biogas, and gas is popularized as kitchen fuel, replacing coal and firewood, which is of great significance for energy saving and environmental protection.

The development of applicable gas stoves can easily change the coal firewood stoves in vast rural areas into gas stoves, or into coal firewood and gas dual-purpose stoves, especially into biogas stoves. Can save a lot of renovation funds. Gas stoves with long blast pipes should also be equipped with high-efficiency, environmentally friendly burners, high-performance safety protection devices and powerful electric lighters to solve the problems of difficult ignition and potential safety hazards, and follow the development direction of today's gas appliance technology.

For this purpose, it is necessary to solve the structural incompatibility of known household gas stoves and commercial gas Chinese cooking stoves and large pot stoves, and further improve performance:

1. Known domestic gas stoves, commercial gas Chinese cooking stoves, and large pot stoves cannot be directly installed in the hearth of a coal stove. The burner should be connected directly to the blower outlet with a blower tube of sufficient length to allow the burner to reach under the pot in the hearth of the wood stove. At the same time, the large shell of the stove and its supporting frame should be removed, and accessories such as pot brackets should be removed to simplify the structure.

2. It is inconvenient to use the ignition rod to ignite, and it is easy to spray fire and hurt people, and it takes a lot of energy. A powerful electric lighter should be configured to ensure the success rate of ignition. Eliminate the ignition stick.

3. The ignition needle is installed on the main burner, the ignition burner is omitted, and the main fire is ignited directly.

4. Most of the domestic Chinese food stoves, large pot stoves and household biogas stoves do not have safety protection configurations, and there are major safety hazards. The new national standard GB16410-2007 only mandates that household gas stoves must be equipped with a flameout protection device (not including biogas stoves), and stipulates that the ignition valve opening time is less than 45 seconds, and the valve closing protection time is less than 60 seconds to qualify. 60-second protection is still dangerous. Therefore, a high-standard protective device with 3-5 seconds of breath-holding should be configured.

5. Gas stoves with long blast pipes should also be equipped with high-efficiency and environmentally friendly burners.

Invention content:

Technical problem to be solved :

The structure is simplified so that the burner can extend into the hearth of the coal stove. It can be installed under the cauldron.

The structure is simplified, the ignition pin is installed on the main burner, and a powerful lighter is configured to directly ignite the main burner, and the ignition rod and ignition burner are eliminated.

Equipped with a high-standard safety protection device with 3-5 seconds to hold your breath. Thoroughly eliminate the potential safety hazard of holding your breath for 60 seconds.

Long-tube gas stoves should also be equipped with efficient and environmentally friendly burners.

Technical solution :

1. Known domestic gas stoves, commercial gas Chinese cooking stoves, and large pot stoves cannot be directly installed in the hearth of a coal stove. A long enough blast pipe can be directly connected between the burner and the air outlet of the blower so that the burner can be extended under the pot in the hearth of the coal-fired stove. Blast pipe (12) is thicker by one section of burner, and thinner by one section of air blower, and left and right sleeves are inserted together, can push and pull and change its length, adapt to the kitchen range of different sizes.

Moreover, the wide shell and its support frame of the stove should be removed, and accessories such as pot brackets should be removed, so that the structure is greatly simplified.

2. It is inconvenient to use the ignition rod to ignite, and it is easy to spray fire and hurt people. Powerful electric lighters should be equipped and ignition rods should be eliminated.

3. The ignition needle is installed on the main burner, the ignition burner is omitted, and the main fire is ignited directly.

4. Adopt advanced technology to increase the protection speed by 10-20 times. That is, a high-standard protective device with 3-5 seconds of breath-holding is configured.

5. The long-tube gas stove is equipped with an efficient and environmentally friendly burner.

If the detachable grate is retained during the transformation of the coal firewood stove, it will become a dual-purpose stove for firewood, coal and gas.

Beneficial effect:

Implementing this patent can easily change coal firewood stoves in vast rural areas into gas stoves, or into coal firewood and gas dual-purpose stoves, especially into biogas stoves. Moreover, the structure of the long blast pipe gas stove is greatly simplified, and the transformation cost can be reduced by at least one time. In addition, the long blast pipe gas stove is easy to use and maintain, energy-saving and environmentally friendly, and has leading safety performance. This technology can achieve good economic and social effects (already in application) in the construction of new countryside in my country.

Description of drawings:

Fig. 1 is a side view of a gas stove with a long blast pipe used for reforming a coal wood stove.

Fig. 2 is a side view of a gas stove with a long blast pipe placed in a coal stove or a firewood stove.

Fig. 3 is a sectional view of the fire hole of the gas range burner of the long blast pipe forming a burst flame and the ignition pin being installed on the main burner.

In the picture:

1 Flame probe 14 Air regulating plate

2 Burner distributors 15 Blower feet

3 Burner housing 16 Gas intake nozzle

4 ignition pin 17 power cord

5 wires 18 electronic controllers

6 gas pipe 19 coal stove chimney

7 heat shields 20 cauldrons

8 Safety valve 21 Coal stove hearth

9 Alarm lights 22 Coal stove mouth

10 gas regulating valve 23 pairs of flame blowing

11 Stove support feet 24 Combustion conical surface

12 Blast pipe JQ gas inlet direction

13 Blower Direction of YH premixed gas entering the burner

Detailed ways:

Below in conjunction with accompanying drawing and embodiment this patent is described.

Fig. 1 is a side view of a gas stove with a long blast pipe used for reforming a coal wood stove. Connect with long enough air blast pipe (12) between burner housing (3) and air blower (13) air outlet among the figure, thus burner can be stretched into cauldron (21) inner cauldron ( 20) below, air guide pipe (12) is thicker by one section of burner, and one section by blower is thinner, and left and right sleeves are inserted together, can push and pull, change its length, come to adapt to the fire hearth of different depths. The long air blast pipe gas stove is fixed on the ground by the cooking range support feet (11) and the blower support feet (15). In this way, the problem that the known domestic gas stoves, commercial gas Chinese cooking stoves, and large pot stoves cannot be directly installed in the hearth of the coal stove is solved. Moreover, the large shell of the known gas cooker and its support frame, accessories such as pan-saving brackets are removed, and the structure is greatly simplified.

The gas enters the gas inlet nozzle (16) according to the JQ gas inlet direction, and then connects the gas regulating valve (10), the safety valve (8) and the gas conduit (6) successively thereafter. The air blown in by the blower is premixed with the combustion gas in the middle part of the air guide pipe (12). Air regulating plate (14) is housed at blower blade place, and mixing ratio is regulated by the opening degree of air regulating plate (14). Finally, the mixture is injected into the burner housing (3). Power is supplied to the blower (13) and electronic controller (18) via the power cord (17). Another patent 200810017214.4 of the inventor is installed in the electronic controller (18) with a powerful timing ignition circuit and a safety valve opening maintenance circuit, and a warning lamp (9) is also installed in the electronic controller (18), and the known safety valve (8) and A known gas regulating valve (10).

The burner housing (3) is fixedly connected with the ignition needle (4). When the gas regulating valve (10) is supplying gas, the ignition circuit is connected, and the needle tip of the ignition needle (4) generates 50 times/second, which is faster than usual. The spark with 50 times the energy is enhanced to directly ignite the flame of the main burner, the known ignition burner is omitted, and the ignition rod is eliminated, which is safe and energy-saving. And inconvenient to operate with ignition rod ignition mode, easily spews fire and injures people. point

After the fire, the flame heats the food in the pot. Flame probe (1) is also fixedly connected on the burner housing (3), and this probe is another patent of the inventor: 200810017216.3 Dynamic overshoot fast thermocouple or known flame ion sub-probe, their electric signal Transmitted to the electronic controller (18) by the wire (5), all can realize the high-standard fire-off safety air-holding alarm of 3-5 seconds, and the warning light (9) also flickers. At present, most Chinese cooking stoves, large pot stoves and household biogas stoves in China do not have safety protection configurations, and there are major safety hazards. The new national standard GB16410-2007 is only mandatory for household gas stoves: a flameout protection device (not including biogas stoves) must be installed, and the ignition valve opening time is less than 45 seconds, and the valve closing protection time is less than 60 seconds to be qualified. It is still very dangerous to protect a high-power burner for 60 seconds! The key to safety protection is protection response speed, which is especially important for high-power burners.

The long blast tube gas stove combines two leading technologies of dynamic overshoot for 3-5 seconds fast thermocouple protection and 50 times enhanced spark energy ignition to achieve fast thermoelectric protection and powerful electronic ignition of the main burner. it's necessary.

The heat shield (7) is fixedly attached to the gas conduit (6), which is used to protect the electronic controller (18) and prevent the circuit from overheating.

Long blast pipe gas stoves are equipped with concentrated flame blast premixed burners. The burner consists of a burner housing (3), a flame distributor (2) covering the burner on it, and a blast pipe (12) at the bottom and the like.

The flame distributor (2) of the burner forms a flame gathering, high-efficiency combustion, and low emission.

Fig. 2 is a side view of a gas stove with a long blast pipe placed in a coal stove or a firewood stove. Among the figure, the long blast pipe (12) is directly connected between the burner housing (3) and the blower (13) air outlet, so that the burner can be stretched into the furnace from the coal stove mouth (22), And place the below of cauldron (20), and long tube gas range is fixed on the ground by stove supporting foot (11) and blower supporting foot (15). The gas enters the gas conduit (6) through the JQ gas inlet direction, and is premixed with the air blown in by the blower in the middle of the air guide pipe (12), and the mixing ratio is regulated by the opening of the air regulating plate (14). Power is supplied to the blower (13) and electronic controller (18) via the power cord (17). The electronic controller (18) includes a powerful timing ignition circuit and a safety valve opening maintenance circuit, and a warning light (9), also known safety valve (8) and known gas regulating valve (10). After ignition, the flame heats the food in the pot. Flue gas is discharged into atmosphere through chimney (19).

If the detachable grate is retained during the transformation of the coal firewood stove, it will become a dual-purpose stove for firewood, coal and gas.

Fig. 3 is the sectional view that the flame hole of the gas stove burner of the long blast pipe forms the flame burning and the ignition pin is installed on the main burner. In the figure, the premixed gas is sprayed into the burner housing (3) according to the direction of YH premixed gas, and the gas is ignited by the ignition needle (4). The accidental flameout is detected by the flame probe (1), and the flameout signal is sent to the electronic controller (18) through the wire (5).

The flame-gathering blast high-efficiency burner configured on the long blast pipe gas stove. Compared with the general high-power burner, the number of structural parts is doubled, and the cost is more than doubled. The outer ring of the burner housing (3) and the flame distributor (2) of the burner has a combustion conical surface (24) to form a continuous slit flame, and the flame is sprayed toward the center for high-efficiency combustion, high power density and low emission. On the other hand, the sub-circle fire hole of the fire distributor (2) of the burner is outwardly inclined, and then forms a confronting flame (23) with the gap flame, which can overcome the fire-off phenomenon that occurs when the air supply pressure is large, and make ignition and detection Fire works reliably.

Claims (4)

1. Ordinary blast gas stoves include main gas burners, ignition burners, blowers, gas distribution pipes, air regulating plates, gas regulating valves, panel shells, structural skeletons and pot supports, etc. This patent provides a The gas stove with a long blast pipe for reforming a coal firewood stove is characterized in that: connect them with a sufficiently long blast pipe (12) between the burner housing (3) and the air outlet of the blower (13), and then Stretch the burner into the firebox (21) of the coal firewood stove, and install it under the cauldron (20); save the wide panel shell and its structural skeleton of the known gas stove, and remove the pan support; The advanced device of 5-second safety air-holding protection and powerful ignition with 50 times the spark energy constitutes an electronic controller (18); the ignition burner is omitted; the outer ring of the burner is a flame-gathering conical surface (24), forming a continuous gap Flame outlet, the outer ring fire hole of the fire distributor (2) of the burner is inclined outwards, then forms opposite flame (23). 2. The gas cooker with long blast tube according to claim 1 is characterized in that: the gas conduit (6) communicates with the middle part of the air guide pipe (12), and gas premixing is carried out in the air guide pipe. 3. The feature of the long blast pipe gas cooker as claimed in claim 1 is: the gas guide pipe (12) is thicker by the burner section, and thinner by the blower section, and the left and right sleeves are inserted together, and the length can be changed by pushing and pulling. 4. The feature of the long blast pipe gas stove according to claim 1 is that a heat shield (7) is vertically fixed at one end close to the electronic controller (18).

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