CN2789620Y - Domestic gas back firing stove - Google Patents

Abstract

The utility model relates to a domestic gas back firing stove, which is characterized in that an outer shell 1 and a furnace pipe 3 are both of hollow interlayer structures communicated via a pipe 4. A chimney 6 is provided with an interlayer water jacket 5 which covers up the chimney and is provided with a water outlet 7 and a water inlet 8. A bottom plate 9 is provided with a group of air holes 9a communicated with an annular cavity between the outer shell and the furnace pipe. A cavity 10a arranged in a base 10 is communicated with the air holes 9a, 9b, 9c to ultimately communicate the chimney. Fuel in the furnace pipe of the utility model directly heats up water in the water jacket of the furnace pipe, so waste heat goes into the chimney from the annular cavity between the furnace pipe and the outer shell, the air holes on the bottom plate and the cavity on the base, which enlarges a heating area and raises burning heat efficiency. The utility model used in families can drive five groups of radiators 1 m long, can reach room temperature in 30 minutes in winter and can be conveniently used for heating water and cooking.

Description

Household gas burner

Technical field: The utility model relates to a heating device, in particular to a household coal stove with an interlayer water jacket.

Background technique:

With the worldwide energy crisis, people pay more attention to the development and utilization of coal, especially in northern my country, coal stove heating is still the mainstream method. The basic structure of the coal furnace is that the refractory furnace is installed on the base, the outer layer is added with a shell, and the insulation material is filled between the shell and the furnace. The thermal efficiency of this common coal stove is quite low, and it is also inconvenient to use. In order to solve the above problems, domestic coal stoves with interlayer water jackets on the furnace shell have appeared this year. On the one hand, it improves the utilization rate of coal calorific value, and on the other hand, the hot water in the interlayer water jacket provides convenience for people. However, this kind of coal stove still has not exerted its maximum efficiency. If it cannot drive indoor heating equipment, there is still room for further improvement in thermal efficiency. Extensive searches have been carried out for the above problems, but no solutions related to the present invention have been found.

Invention content:

The purpose of this utility model is exactly to design a kind of highly efficient household gas reburning furnace that can drive indoor heating equipment in order to solve the above-mentioned defects that exist in the prior art.

In order to achieve the above object, the utility model adopts the following technical solutions:

A household gas reburning furnace, which is composed of a shell, an upper cover, a furnace and a base, the upper cover is connected to the shell, and the lower part of the shell and the furnace is connected to the base, and it is characterized in that the shell and the furnace are both Hollow interlayer structure, a connecting pipe is provided between the shell and the furnace to connect their interlayer cavities, and an annular cavity is formed between the furnace and the shell. In order to further improve the thermal efficiency, a chimney can be set on the furnace body, and the chimney is surrounded by a chimney. The hollow interlayer water jacket wraps the chimney, and the upper and lower ends of the water jacket are respectively provided with water outlets and water inlets. A group of air holes are arranged on the bottom plate of the base to communicate with the annular cavity between the shell and the furnace and the cavity of the base. The chimney and the base The cavities are connected.

Since the utility model adopts the hollow water jacket furnace and the connected hollow water jacket shell, the fuel in the furnace directly heats the water in the furnace water jacket, and the waste heat is generated from the ring cavity of the furnace and the shell, and a set of bottom plate. The gas hole and base cavity enter the chimney, and the gas is burned back from top to bottom, so it is named the back-burning furnace. It increases the heating area and makes full use of the temperature gradient of the gas. The thermal efficiency of the fuel is greatly improved compared with other coal furnaces. Improvement, the furnace, shell and chimney water jacket are all connected, so that the water in the interlayer forms a thermal cycle from high temperature to low temperature. Generally, household use can drive 5 groups of 1-meter-long radiators, and it can reach room temperature in 30 minutes in winter. Water and cooking are very convenient.

In order to illustrate the utility model in more detail, the following drawings provide a preferred embodiment of the utility model.

Description of drawings:

Fig. 1 is the front view of the utility model;

Fig. 2 is the left view of Fig. 1;

FIG. 3 is a top view of FIG. 1 .

Detailed ways:

As shown in Figure 1, the structure of the present utility model is that the shell 1 of the belt hollow interlayer welded by stainless steel plate and the conical furnace 3 are installed on the base plate 9 of base 10, and the upper end of shell 1 is connected with loam cake 2, furnace 3 and the shell 1 are provided with communication pipes 4, 4a to communicate with their hollow inner cavities. Also connect hollow interlayer water jacket 5 on the bottom plate 9, its top is provided with water outlet 7, the bottom is provided with water inlet 8, is provided with chimney 6 in the water jacket, and its lower end communicates with the through hole 9c on the bottom plate 9. A connecting pipe 5a is provided between the water jacket 5 and the outer casing 1 to connect the outer casing with the water jacket and play a role of connection and fixation, as shown in Fig. 1 and Fig. 2 . A cavity 10a is provided in the base 10 to communicate with the air holes 9a, 9b, 9c, and a group of air holes 9a, 9b are communicated with the annular cavity between the shell and the furnace, and the air holes are gradually reduced from 9a to 9b. Let the gas passing through the bottom plate be heated evenly, as shown in Figure 3. The base 10 of the utility model is also provided with an ash storage box 11 and an ash cleaning hole 12, and the water jacket of the shell 1 is provided with a safety valve 1a, and these are conventional structures.

Claims (1)

1. A domestic gas burner, which is composed of a shell, an upper cover, a furnace and a base, the upper cover is connected to the shell, the shell and the furnace are connected to the base, and it is characterized in that the shell and the furnace Hollow interlayer structure, there is a connecting pipe between the shell and the furnace to connect their interlayer cavities, an annular cavity is formed between the furnace and the shell, a chimney is provided on the furnace body, and a hollow interlayer connected to the shell is provided on the chimney Water jacket, the upper and lower ends of the water jacket are respectively provided with a water outlet and a water inlet, and a group of air holes are provided on the bottom plate of the base to communicate with the annular cavity between the shell and the furnace and the cavity of the base, and the chimney is communicated with the cavity of the base.

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