CN101922740A

CN101922740A - Thermal circulation overhead kang

Info

Publication number: CN101922740A
Application number: CN 201010264624
Authority: CN
Inventors: 李桂文; 任洪国; 方修睦
Original assignee: Harbin Institute of Technology Shenzhen
Current assignee: Harbin Institute of Technology Shenzhen
Priority date: 2010-08-27
Filing date: 2010-08-27
Publication date: 2010-12-22
Anticipated expiration: 2030-08-27
Also published as: CN101922740B

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 type elevated heatable brick bed

One, technical field:

What the present invention relates to is the novel heated kang that uses in the village-town house, and what be specifically related to is thermal circulation type elevated heatable brick bed.

Two, background technology:

Heated kang uses still very general in vast rural area at present, heated kang links to each other with stove and is arranged at respectively in two rooms, heat to heated kang by burning stove, heated kang utilizes material compositions such as brick clay, the a heatable brick bed plate of heated kang is sun-dried mud brick mostly, brick, cement plate etc., built on stilts a heatable brick bed is a kind of of heated kang, built on stilts a heatable brick bed directly used sun-dried mud brick on the ground, brick, cement plates etc. are built into, the a heatable brick bed body have three faces respectively directly with two of room between wall and back wall build and be one, block has flue, the bottom surface of this a heatable brick bed to have the heat retention area in a heatable brick bed, it is obstructed to circulate, the indoor air temperature exchange velocity is slow, and the thermal efficiency is low, causes indoor temperature inhomogeneous.

Three, summary of the invention:

The purpose of this invention is to provide thermal circulation type elevated heatable brick bedly, it is used for existing built on stilts a heatable brick bed and has the heat retention area, the problem that indoor heat convection is bad.

The technical solution adopted for the present invention to solve the technical problems is: in this thermal circulation type elevated heatable brick bed a heatable brick bed body flue is arranged, the a heatable brick bed body contacts with ground by support column, form air duct between a heatable brick bed body bottom surface and the ground, the back of a heatable brick bed body is the heat radiation wall, the heat radiation wall stands on a heatable brick bed face, the back of heat radiation wall is the back wall in room, and air flow channel is arranged between the two, and air duct communicates with air flow channel.

The heat radiation wall is made of heat radiation iron plate in the such scheme.

The heat radiation wall is provided with iron skill heat dissipating housing in the such scheme.

Support column is set up in parallel along former and later two edges of a heatable brick bed body in the such scheme, wherein the support column of back directly leans against behind the room on the wall, a heatable brick bed body seat is after on the support column, the upper surface part of support column is exposed at a heatable brick bed external, this mode is owing to support column leans against on the wall of back, more firm, and support column exposes in the external part of a heatable brick bed, promptly forms the air flow channel between heat radiation wall and the back wall.

Beneficial effect:

1, the present invention props up a heatable brick bed body by support column, simultaneously three on original heated kang is contacted with wall, changing into two contacts with wall, a heatable brick bed body back and Hou Qiang are separated, form air flow channel, air duct and air flow channel below a heatable brick bed body have constituted air circulation duct, produced stack effect, well like this solved the problem that there is the heat retention area in existing built on stilts a heatable brick bed, thereby room air is really flowed, improve the thermal efficiency of heated kang, also reduced simultaneously because the greenhouse effects that the too much combustible of burning causes etc.

2, the present invention is simple in structure, has improved the thermal diffusivity of heated kang, makes heated kang not only be used for having a rest, and can also be used for being indoor heating, makes its effect that has more heating, has also saved the energy simultaneously.

Four, description of drawings:

Fig. 1 is the side sectional view of the embodiment of the invention 1;

Fig. 2 is the front view of the embodiment of the invention 1;

Fig. 3 is the vertical view after the embodiment of the invention 1 is installed;

Fig. 4 is the side sectional view of the embodiment of the invention 2.

12 walls of 1 a heatable brick bed body, 2 a heatable brick bed face 3 flues, 4 support column 5 ground, 6 heat radiation wall 7 heat sinks, 8 heat dissipating housing 9 air flow channels, 10 back 11 walls of wall, 13 chimneys, 14 stoves

Five, the specific embodiment:

The present invention is described further below in conjunction with accompanying drawing:

Embodiment 1:

In conjunction with Fig. 1, Fig. 2, shown in Figure 3, in this thermal circulation type elevated heatable brick bed a heatable brick bed body 1 flue 3 is arranged, a heatable brick bed body 1 contacts with ground 5 by support column 4, support column 4 is with 1 of a heatable brick bed body built on stilts 5 that gets up, make between a heatable brick bed body 1 bottom surface and the ground 5 and form air duct, the right and left of a heatable brick bed body 1 wall 11 respectively and between the left side, wall 12 is built together between the right side, the back of a heatable brick bed body 1 is a heat radiation wall 6, heat radiation wall 6 stands on a heatable brick bed face 2, the back of heat radiation wall 6 is the back walls 10 in room, heat radiation wall 6 is isolated with back wall 10, space between the two is an air flow channel 9, the top of air flow channel 9 is the circulation port outlet, and air duct communicates with air flow channel 9, and the two constitutes a right angle channel.Heat radiation wall 6 is made of heat radiation iron plate.Heat radiation wall 6 is provided with iron skill heat dissipating housing 8.After stove 14 is lighted, flue gas is by 1 heating of 3 pairs of a heatable brick bed bodies of flue, flow out by chimney 13, a heatable brick bed body 1 is heated its heat of back by on a heatable brick bed body 1, lower surface comes out, the space of air on a heatable brick bed body 1 of heat, air duct below a heatable

brick bed body

1,9 of air flow channels between heat radiation wall 6 and the back wall 10 carry out active cycle, form heat convection, thereby make the real rice that flowed of room air, solved the problem that there is the heat retention area in existing built on stilts a heatable brick bed, improved the thermal efficiency of heated kang, made heated kang have more the effect of heating installation, in addition, because a heatable brick bed body 1 does not directly contact with ground, can also play dampproof effect.

Embodiment 2:

Fig. 4 is the side sectional view of the embodiment of the invention 2, as shown in the figure, thermal circulation type elevated heatable brick bed difference among this thermal circulation type elevated heatable brick bed and the embodiment 1 is, there is row's support column 4 in the forward position of a heatable brick bed body 1, also there is row's support column 4 back of a heatable brick bed body 1, wherein the support column 4 of back directly leans against behind the room on the

wall

10,1 of a heatable brick bed body is after on the support column 4, the upper surface part of support column 4 is exposed outside a heatable brick bed body 1, this mode is owing to support column 4 leans against on the wall 10 of back, more firm, and support column 4 exposes the part outside a heatable brick bed body 1, promptly forms the air flow channel 9 between heat radiation wall 6 and the back wall 10.

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

Q _Heat=ρ _S* V * Δ t * 24h

＝ρ _S×u×S×Δt×24h

Wherein: 1) Q _HeatBe the heat exchange amount;

2) ρ _S=273 ÷ (273+T _s) * ρ _N, ρ _NBe standard air density 1.34kg/m ³

3) T _S: be air flow channel circulation port outlet temperature;

4) V is the outlet volume flow, and V=u * S, u are outlet air average speed, is the air average speed that the air flow channel circulation port between the back wall in heat radiation wall and room exports, and S is the area of section of this air flow channel;

5) Δ t is the temperature difference, i.e. the difference of air flow channel circulation port outlet temperature and room temperature; Test through maintaining secrecy:

Being measured as u is 2.7m/s, and recording S is 2.3 * 0.06m ², recording Δ t is 3 ℃.

Heated kang with 2.3 meters long, 0.06 meter wide structure slit (air flow channel wide) is example, calculates through experiment measuring and according to following formula, draws, and the heat internal circulating load is 125328.63J.

Claims

One kind thermal circulation type elevated heatable brick bed, it is characterized in that: in this thermal circulation type elevated heatable brick bed a heatable brick bed body (1) flue (3) is arranged, a heatable brick bed body (1) contacts with ground (5) by support column (4), form air duct between a heatable brick bed body (1) bottom surface and ground (5), the back of a heatable brick bed body (1) is a heat radiation wall (6), and heat radiation wall (6) stands on a heatable brick bed face (2), and the back of heat radiation wall (6) is the back wall (10) in room, air flow channel (9) is arranged between the two, and air duct communicates with air flow channel (9).
2. according to claim 1 thermal circulation type elevated heatable brick bed, it is characterized in that: described heat radiation wall (6) is made of heat radiation iron plate.
3. according to claim 2 thermal circulation type elevated heatable brick bed, it is characterized in that: described heat radiation wall (6) is provided with iron skill heat dissipating housing (8).
4. according to claim 1 thermal circulation type elevated heatable brick bed, it is characterized in that: described support column (4) is set up in parallel along former and later two edges of a heatable brick bed body (1), wherein the support column of back (4) directly leans against on the room Hou Qiang (10), a heatable brick bed body (1) seat is after support column (4) is gone up, and the upper surface part of support column (4) is exposed outside a heatable brick bed body (1).