CN101922740B - Thermal circulation type elevated heatable brick bed - Google Patents

Abstract

The invention relates to a heat circulation type overhead kang, which belongs to a new type of fire kang used in villages and towns. The heat circulation type overhead kang has a flue nailed in the body of the kang, and the kang body is in contact with the ground through support columns. Air channel is formed, the back of the kang body is a heat dissipation wall, the heat dissipation wall stands on the surface of the kang, the back wall of the heat dissipation wall is the back wall of the room, there is an air flow channel between the two, and the air channel communicates with the air flow channel. The air channel under the kang body of the present invention and the air flow channel between the heat dissipation wall and the back wall constitute an air circulation channel, which produces a chimney effect, and solves the problem of heat stagnation area in the existing elevated kang well, making indoor The air really flows, improving the thermal efficiency of the kang.

Description

Thermal circulation overhead kang

1. Technical field:

The invention relates to a novel heated kang used in houses in villages and towns, in particular to a thermal cycle overhead kang.

2. Background technology:

At present, the heated kang is still very common in vast rural areas. The heated kang is connected to the stove and is arranged in two rooms respectively. The heated kang is heated by burning the stove. The heated kang is made of materials such as brick and soil. Bricks, cement boards, etc. The overhead kang is a kind of heated kang. The overhead kang is directly built on the ground with adobe, bricks, cement boards, etc. The three sides of the kang body are directly connected with the two walls and the back wall of the room. One piece, the kang is built with a flue, and there is a heat stagnation area on the lower bottom of this kind of kang, the circulation is not smooth, the indoor air temperature exchange rate is slow, and the thermal efficiency is low, resulting in uneven indoor heat.

3. Contents of the invention:

The object of the present invention is to provide a heat circulation type overhead kang, which can be used for the problem that the existing overhead kang has a heat stagnation area and indoor convective heat transfer is not good.

The technical solution adopted by the present invention to solve its technical problems is: there is a flue in the body of the thermal cycle overhead kang, the body of the kang contacts the ground through the support columns, an air passage is formed between the bottom surface of the body of the kang body and the ground, and the body of the kang body The back is a cooling wall, the cooling wall stands on the Kang surface, the back wall of the cooling wall is the back wall of the room, there is an air flow channel between the two, and the air channel communicates with the air flow channel.

In the above scheme, the heat dissipation wall is made of heat dissipation iron plates.

In the above scheme, a wrought iron heat dissipation cover is arranged on the heat dissipation wall.

In the above scheme, the support columns are arranged side by side along the front and rear edges of the Kang body, and the support columns at the back are directly against the back wall of the room. The first way is more stable because the support column leans against the back wall, and the exposed part of the support column outside the body of the kang forms an air flow channel between the heat dissipation wall and the back wall.

Beneficial effect:

1. The present invention supports the kang body through support columns, and simultaneously changes the three sides of the original heated kang into contact with the wall, and changes the two sides into contact with the wall, and separates the back of the kang body from the rear wall to form an air flow channel. The air channel and the air flow channel constitute the air circulation channel, which produces the chimney effect, which solves the problem of the heat stagnation area in the existing overhead kang, so that the indoor air can really flow, improve the thermal efficiency of the kang, and at the same time It also reduces the greenhouse effect caused by burning too much combustibles.

2. The present invention has a simple structure and improves the heat dissipation of the heated kang, so that the heated kang is not only used for rest, but also can be used for indoor heating, making it more effective for heating and saving energy.

4. Description of drawings:

Fig. 1 is a side sectional view of Embodiment 1 of the present invention;

Fig. 2 is the front view of Embodiment 1 of the present invention;

Fig. 3 is the plan view after the installation of Embodiment 1 of the present invention;

Fig. 4 is a side sectional view of Embodiment 2 of the present invention.

1 Kang body 2 Kang surface 3 Flue 4 Support column 5 Floor 6 Radiating wall 7 Radiating plate 8 Radiating cover 9 Air channel 10 Rear wall 11 Walls 12 Walls 13 Chimney 14 Stove

5. Specific implementation methods:

Below in conjunction with accompanying drawing, the present invention will be further described:

Example 1:

As shown in Fig. 1, Fig. 2, and Fig. 3, there is a flue 3 in the body 1 of the thermal cycle overhead kang, and the body 1 of the kang is in contact with the ground 5 through the support column 4, and the body 1 is supported by the support column 4. Leave the ground 5 to form an air passage between the bottom surface of the kang body 1 and the ground 5. The left and right sides of the kang body 1 are respectively built with the left side wall 11 and the right side wall 12. The back of the kang body 1 is a heat dissipation wall 6 for heat dissipation. Wall 6 stands on the kang surface 2, and the back wall 10 of the room is behind the heat dissipation wall 6, and the heat dissipation wall 6 and the rear wall 10 are spaced apart, and the space between the two is the air flow channel 9, and the space between the air flow channel 9 The top is the outlet of the circulation port, and the air channel communicates with the air flow channel 9, and the two form a right-angle channel. The heat dissipation wall 6 is made of heat dissipation iron plates. The heat dissipation wall 6 is provided with a wrought iron heat dissipation cover 8 . After the stove 14 was ignited, the flue gas heated the kang body 1 through the flue 3, and flowed out through the chimney 13. After the kang body 1 was heated, its heat was released through the upper and lower surfaces of the kang body 1, and the hot air was heated on the kang body 1. The space in the space, the air channel under the kang body 1, and the air flow channel 9 between the heat dissipation wall 6 and the rear wall 10 are actively circulated to form convective heat exchange, so that the indoor air can really flow, which solves the problem of the existing overhead kang There is the problem of heat stagnation area, which improves the thermal efficiency of the heated kang, and makes the heated kang more have the effect of heating. In addition, because the kang body 1 does not directly contact with the ground, it can also play the role of moisture-proof.

Example 2:

Fig. 4 is a side sectional view of Embodiment 2 of the present invention. As shown in the figure, the difference between this heat-circulating overhead kang and the thermal-circulation overhead kang in embodiment 1 is that there is a row of support columns 4 on the front of the kang body 1, There is also a row of supporting columns 4 behind the kang body 1, wherein the supporting columns 4 at the back are directly against the back wall 10 of the room, and the kang body 1 is seated on the supporting columns 4, and the upper end surface of the supporting columns 4 is partially exposed on the kang body 1. In addition, this method is more stable because the back support column 4 leans against the rear wall 10, and the exposed part of the support column 4 outside the kang body 1 is formed as an air flow channel between the heat dissipation wall 6 and the rear wall 10 9.

The present invention designs the structure of heated kang according to the principle of chimney effect, and the whole day (24 hours) heat exchange of the present invention is:

Q _heat = ρ _S × V × Δt × 24h

= _ρS ×u×S×Δt×24h

Among them: 1) Q _heat is heat exchange;

2)ρ _S ＝273÷(273+T _S )×ρ _N , ρ _N is the standard air density of 1.34kg/m ³ ;

3) T _S : is the outlet temperature of the circulation port of the air flow channel;

4) V is the outlet volume flow rate, V=u×S, u is the average velocity of the outlet air, that is, the average velocity of the air at the outlet of the air flow channel circulation port between the cooling wall and the back wall of the room, and S is the air flow channel cross-sectional area;

5) Δt is the temperature difference, that is, the difference between the outlet temperature of the air flow channel circulation port and the room temperature;

After a confidential experiment:

The measured u is 2.7 m/s, the measured S is 2.3×0.06 m ² , and the measured Δt is 3°C.

Taking a heated kang with a length of 2.3 meters and a width of 0.06 meters (the width of the air flow channel) as an example, through experimental measurement and calculation according to the above formula, it can be concluded that the amount of heat circulation is 125328.63J.

Claims (4)

1. a kind of thermal circulation type overhead kang is characterized in that: flue (3) is arranged in the kang body (1) of this thermal circulation type overhead kang, and the kang body (1) is connected with ground (5) by support column (4) ) contact, an air passage is formed between the bottom surface of the Kang body (1) and the ground (5), and the heat dissipation wall (6) is behind the Kang body (1), and the heat dissipation wall (6) stands on the Kang surface (2), and the heat dissipation wall The back of (6) is the back wall (10) of room, and there is air passage (9) between the two, and air passage communicates with air passage (9). 2. The thermal cycle overhead kang according to claim 1, characterized in that: the heat dissipation wall (6) is made of heat dissipation iron plates. 3. The thermal cycle overhead kang according to claim 2, characterized in that: the heat dissipation wall (6) is provided with an iron heat dissipation cover (8). 4. The heat-circulating overhead kang according to claim 1, characterized in that: the supporting columns (4) are arranged side by side along the front and rear edges of the kang body (1), wherein the supporting columns (4) at the back directly Lean on the room back wall (10), after the kang body (1) is seated on the support column (4), the upper end surface part of the support column (4) is exposed outside the kang body (1).

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