WO2010063164A1

WO2010063164A1 - Gas stove

Info

Publication number: WO2010063164A1
Application number: PCT/CN2009/001354
Authority: WO
Inventors: 曾文洲
Original assignee: Zeng Wenzhou
Priority date: 2008-12-02
Filing date: 2009-12-01
Publication date: 2010-06-10
Also published as: CN201322332Y

Abstract

A gas stove comprises a stove frame (1), a stove body (2), a gas channel (15), an electronic ignition pin (5) and a clearance adjuster (4), wherein, the stove frame (1) supports cookware and is arranged on the stove body (2); the stove body (2) is a column with an opening at its upper end, an inner cavity of the stove body (2) is divided into an inlet area (13), a gas and air mixing area (7) and a combustion area (8) from bottom to top; the inlet area (13) is provided with an air inlet (16); the inlet area (13), the gas and air mixing area (7) and the combustion area (8) are communicated in sequence; the gas channel (15) extends from the outside of the stove body (2) to the gas and air mixing area (7); an inlet of the gas channel (15) is connected with a gas source (17); an outlet of the gas channel (15) is arranged in the gas and air mixing area (7); the electronic ignition pin (5) is arranged on the juncture of the gas and air mixing area (7) and the combustion area (8); the clearance adjuster (4) is arranged in the stove body (2) in the combustion area (8), and can move up and down in the stove body (2); and the upper part of the clearance adjuster (4) is contacted with the bottom of the cookware during assembling. The gas stove reduces leakage of heat, thereby saves gas.

Description

Stove technology

The invention relates to the field of stoves used in homes, restaurants and the like, and in particular to a stove for saving gas.

Background technique

Gas-fired stoves are now widely used in homes, restaurants, etc. How to improve the utilization of gas, that is, to reduce heat loss, has always been the focus of research in this field. A relatively energy-efficient stove is disclosed in the publication No. CN1584406A, entitled "Energy-saving stoves that enable full combustion of gas and digital display control functions." Referring to Figures 1 and 2, the energy-saving furnace mainly comprises a panel 27, a base 28 of the support panel 27, support legs 36 on the base 28, a cookware support 37 supporting the cookware, a tray 39 and an energy-saving burner 38. The fire cover 1 of the energy-saving burner head is placed on the fire cover seat 2, and the fire nozzle of the fire ring nozzle hole 17, the horizontal fire ring nozzle hole 16 and the longitudinal fire ring nozzle hole 19 is disposed at the center, and the fire nozzle is provided below the spray nozzle The two-way gas tank 12 and the inner gas chamber 1 1 are provided with an outer gas passage 13, an outer gas chamber 14 and a hot groove ring nozzle 15 on the side of the fuel injection nozzle, and a gas lateral inlet passage 10 is disposed below the inner gas chamber 11 And a high pressure injection pipe 4, below the gas lateral inlet passage 10, a gas longitudinal inlet passage 9, a gas entering the high pressure passage hole 6, a high pressure gas nozzle 7 and a high pressure gas passage 8; the gas entering from the high pressure gas passage 5, the above components Located on the gas seat 3.

When the above-mentioned stove is in use, the cookware is placed on the cookware holder 37, and the flame is ejected from the fire ring nozzle hole 17, the transverse fire ring nozzle hole 16, the longitudinal fire ring nozzle hole 19, the hot groove ring nozzle 15, and the like. heating.

The disadvantage of the above-mentioned stove is that the ignition zone, the gas and air mixing zone are almost at the top of the burner, the distance between the bottom of the cookware and each flame nozzle hole is large, the flame is exposed, the energy loss is large, and the gas utilization rate is low. Summary of the invention

It is an object of the present invention to provide a stove that is energy efficient.

To achieve the above objectives, the following technical solutions are provided:

Stove, including:

a cooker frame, which supports the cookware, and the cooker frame is mounted on the furnace body described below;

The furnace body is a columnar shape with an open upper end, and the inner body cavity of the furnace is an intake area, a gas-air mixing zone and a combustion zone from bottom to top, and an air inlet, an intake zone, a gas-air mixing zone and combustion in the intake zone. The districts are connected in sequence; The inlet of the gas passage is located outside the furnace body, and is connected to the gas source, and the outlet of the gas passage is located in the gas-air mixing zone;

An electronic ignition pin located at a junction of the gas-air mixing zone and the combustion zone;

The lash adjuster is placed in the furnace body located in the combustion zone, and the lash adjuster can move up and down in the furnace body, and the upper part of the lash adjuster contacts the bottom of the cookware during installation.

The stove of the invention has a relatively sealed furnace body. When the cookware is placed on the cooker frame, by adjusting the height of the lash adjuster, only a small gap can be left between the bottom of the cookware and the upper surface of the furnace body, and the gas is in the furnace. The combustion zone of the body burns, and the exhausted gas is discharged through the gap between the bottom of the cookware and the upper part of the furnace body, which greatly reduces the leakage of heat and saves gas.

Further technical solutions are:

There are at least three equally spaced cookware positioning posts on the upper portion of the lash adjuster. The upper half of each of the cookware positioning posts is made of plastic material and the lower half is made of heat resistant material.

The above-mentioned cookware positioning column can realize the positioning of different sizes of cookware, and the upper part of the cookware positioning column is a fusible plastic material, which can avoid the irregularity and instability of the bottom shape of some cookware, and the use of the positioning column is mainly used for Control the size of the gap between the bottom of the cookware and the upper part of the furnace.

A further technical solution is:

A fan is connected at the air inlet.

This ensures the supply of oxygen and avoids insufficient combustion of the gas due to insufficient air.

A further technical solution is:

The outlet of the gas passage is located on a lower plate, and an upper plate is disposed above the lower plate, and the distance between the edges of the upper and lower plates is between 0.05 mm and 50 mm.

When the gas flows out between the two plates, the distribution is more uniform, and the gas and air can be more fully mixed. A further technical solution is:

Above the upper plate is a cylindrical screen, the bottom of which is sealed by a gas impermeable plate, the upper portion of which is aligned with the combustion zone.

In this way, the mixed gas does not directly enter the combustion zone for combustion, but penetrates the filter, reduces the pressure, and mixes well and enters the combustion zone to burn, which also makes the gas combustion more fully. DRAWINGS

Figure 1 is a cross-sectional view of a portion of a prior art stove head;

Figure 2 is a partial perspective view of a prior art cooking stove; Figure 3 is a cross-sectional view of the cooker of the present invention;

Figure 4 is a partial cross-sectional view of the cooker of the present invention;

Figure 5 is a schematic view showing the structure of the upper and lower plates at the gas passage of the present invention. detailed description

Referring to Figure 3, the stove mainly includes a cooktop 1, a furnace body 2, and a gas passage 15. The cooktop frame 1 is used for supporting the cookware. The shape of the cooktop frame 1 is generally an elliptical shape similar to the shape of the bottom of the cookware. The cooktop frame is fixed to the outer wall of the furnace body 2 by connecting rods and the like, and the height of the connecting member such as the connecting rod can be adjusted. Adjust the height of the frame to accommodate cookware of different shapes and sizes. Of course, the cooktop frame 1 can also be fixed to the furnace body 2, which may limit the applicable range of the cookware. The whole body of the furnace body 2 is a column having an open upper end, and the inner cavity of the furnace body 2 is an intake area 13, a gas and air mixing area 7 and a combustion area 8 from bottom to top, and the air inlet 16 has an air inlet 16 for the furnace body. The combustion zone 8 has a boss 21 1 , and the intake zone 13, the gas-air mixing zone 7 and the combustion zone 8 are sequentially connected. In the present embodiment, the furnace body 2 is divided into three parts, that is, the combustion zone furnace body 21 1 forming the combustion zone 8 at the uppermost portion and the two-part furnace body forming the gas inlet zone 13 and the gas-air mixing zone 7, burning The upper part of the furnace body 21 1 has a concave surface which is the same as or similar to the bottom arc of the cookware, and the concave surface is provided with a plurality of dowels 3, which can absorb heat from a part of the exhaust gas to achieve better energy saving. effect. The furnace body 2 can of course also be formed as a one-piece structure. The design of the combustion zone furnace body 21 1 into the above-mentioned split structure has the following advantages. First, it is convenient to place the electronic ignition pin 5 and the flameout protection pin 6 between the combustion zone 8 and the gas and air mixing zone 7, and the second is convenient. Installation, the weight of the whole furnace body is large, and the split body is easy to move.

The gas passage 15 extends from the outside of the furnace body 2 through the intake region 13 of the furnace body into the gas-air mixing region 7 of the furnace body. The inlet of the gas passage 15 is located outside the furnace body, and is connected to the gas source 17 which is located in the gas-air mixing zone 7. Referring to FIG. 5, the gas passage outlet 151 is located on the lower plate 10, and the upper plate 101 is disposed above the lower plate 10. The distance between the edges of the upper plate 101 and the lower plate 10 is 0.05 mm to 50 mm, so that the gas passage can be exited. After the high pressure gas from 151 is depressurized, it flows to the gas and air mixing zone 7 to make the mixing of gas and air more sufficient.

The electronic ignition pin 5 and the flameout protection needle 6 are located at the junction of the gas-air mixing zone 7 and the combustion zone 8. Referring to Fig. 4, the lash adjuster 4 is placed on the boss 21 1 located in the furnace body 21 of the combustion zone, and the lash adjuster 4 and the boss 21 1 are connected by a plurality of screws 42 of adjustable height, so that the gap adjustment can be conveniently adjusted. The height of the device 4 within the furnace body 2. In the upper part of the lash adjuster, there are three equidistantly arranged cookware positioning posts 41. The upper half of each cookware positioning post 41 is made of plastic material, and the lower half is made of heat-resistant material, that is, when the bottom of the cookware contacts the cookware positioning post 41. At the upper portion, the upper portion of the cooker positioning post 41 is melted. In the gas-air mixing zone, there is a screen 9 above the upper plate 101, the filter 9 is cylindrical, the bottom of the cylindrical filter 9 is not gas-permeable, and the upper part of the filter 9 is connected to the inner wall of the furnace by threads, of course. It is also possible to fix the screen 9 by other commonly used connection methods. The bottom of the screen 9 is sealed by a gas impermeable plate, the upper portion of which is aligned with the combustion zone 8.

A fan 14 is provided at the air inlet 16, and the fan 14 blows air into the intake area to accelerate the supply of air. The wind speed of the fan 14 is controlled by the controller 12. The specific control method can be the same as that of the ordinary fan, and will not be described in detail here. In addition, the controller can also control the gas inlet size of the gas passage 15, thereby controlling the supply rate of the gas.

In the intake region 13, there is a flow divider 1 1 , the cross section of the flow divider 11 is a trapezoid having a large upper and lower cross section, and the position of the flow equalizer 1 1 is higher than the height of the air inlet, and is blown from the fan 14 The incoming high-pressure air can be dispersed and risen along the outer surface of the flow equalizer 1 1 to equalize the air pressure plane distribution and to make the air dispersion more evenly enter the gas-air mixing zone 7 .

The installation method and working process of the above stove are described below.

According to the size and model of the cookware, the height of the lash adjuster 4 is adjusted up and down. The specific process is that the cookware is first buckled on a platform, and then the lash adjuster 4 is buckled onto the cookware to make the three cookware positioning posts 41 contact. At the bottom of the cookware, the upper portion of the cooker body 21 is reversed on the lash adjuster 4, so that the distance between the lowest nail 3 on the furnace body 21 and the bottom of the cookware is maintained at about 10 mm, and the highest nail is placed. In contact with the bottom of the cookware, the lash adjuster 4 is fixed to the boss 21 1 at this time. Then, the furnace body 21 of the combustion zone is fixed to another part of the furnace body, and then the frame 1 is fixed to the furnace body 2, and then inverted, and other components can be installed in order.

It can be seen that after the cookware is placed on the stove, due to the presence of the positioning post 41, the bottom of the cookware almost seals the entire furnace body, leaving only a gap of about 4 mm between the positioning posts 41, and the exhaust gas can be burned therefrom. The gap is discharged, and during the exhaust gas discharge, a part of the heat carried by the exhaust gas is absorbed by the nail 3, thereby minimizing the loss of heat.

When the gas source 17 is turned on, the gas flows out uniformly from the upper plate 101 and the lower plate 10 through the gas passage 15, and the air that enters and exits the fan passes through the gater 1 1 to be depressurized and uniformly enters the gas and air mixing zone 7, the gas and the gas The mixed gas of air flows upward through the filter 9, and the electronic ignition pin 5 ignites the gas, and the gas is burned in the combustion zone 8. Since the combustion zone 8 has good sealing performance (relative sealing is good, but still needs to be provided The gap of the exhaust gas is exhausted. By controlling the distance between the bottom of the cookware and the furnace body 21 of the combustion zone, the gap of the exhaust gas can be made as small as possible, as long as the exhaust gas cannot be discharged and the explosion occurs.

In addition, after the above-mentioned stove is installed, the circumference of the cooktop is sealed, in order to be able to The exhaust gas from the gap is dissipated, and a plurality of gaps (not shown) for exhaust gas discharge may be opened at the edge of the cooktop frame. These gaps are preferably opened to the rear side of the cooktop frame, so as to prevent the exhaust gas from coming out and rushing to the chef.

The above-described embodiment of the cooktop may have other modifications. For example, the lash adjuster 4 may be slidably mounted to the inner wall of the combustion zone furnace body 21. In addition, it is obvious that the number of the positioning pins 41 of the cookware is not limited to three.

The above examples are only illustrative and not limiting of the technical solutions of the present invention. Any modifications or sub-commitations of the present invention are intended to be included within the scope of the appended claims.

Claims

Rights request

1. A stove, characterized in that it comprises:

The furnace body is a columnar shape with an open upper end, and the inner body cavity of the furnace is an intake area, a gas-air mixing zone and a combustion zone from bottom to top, and an air inlet, an intake zone, a gas-air mixing zone and combustion in the intake zone. The districts are connected in sequence;

a gas passage extending from the outside of the furnace body through the gas inlet region of the furnace body to the gas and air mixing region of the furnace body; the inlet of the gas passage is located outside the furnace body, connecting the gas source, and the outlet of the gas passage is located at the gas and air Mixed area

2. The cooktop according to claim 1, wherein the combustion zone of the furnace body has a boss, and the gap adjuster is placed on the boss, and the distance between the lash adjuster and the boss is adjustable.

3. The cooktop according to claim 1, wherein at least three equidistantly disposed cookware positioning posts are disposed on an upper portion of the lash adjuster, and the upper half of each of the cookware positioning posts is a plastic material, and the lower half Some are heat resistant materials.

4. The cooktop according to claim 1, wherein the air inlet is connected to a fan.

The stove according to claim 1, wherein the outlet of the gas passage is located on a lower plate, and an upper plate is disposed above the lower plate, and the distance between the edges of the upper and lower plates is between 0.05 mm and 50 mm. .

6. The range of claim 5, wherein a cylindrical screen is placed above the upper plate, the bottom of the screen is sealed by a gas impermeable plate, and the upper portion of the screen is aligned with the combustion zone. .

The stove according to claim 6, wherein a hooking device is disposed in the air inlet region, and the cross-section of the cross-flowing device is a trapezoid having a large upper and a lower cross section, and the position of the flow divider is higher than the The height of the air inlet.

The stove according to any one of claims 1 to 7, wherein the upper surface of the furnace body has the same concave shape as the bottom surface of the cookware, and a plurality of dowels are provided on the upper surface of the furnace body. .

9. The cooktop of claim 8 further comprising a controller for controlling the size of the gas passage opening and the fan speed. A cooktop according to claim 9 characterized in that it is opened at the edge of the cooktop