CN103017246A - Heat storage pit warm in winter and cool in summer - Google Patents

Abstract

The invention relates to a heat storage pit warm in winter and cool in summer and belongs to the technical field of indoor worming facilities. The heat storage pit comprises a pit body, ranges and a chimney, wherein the pit body is positioned underground and comprises a pit plate and a grait heat storage bed; a flue is arranged between the pit plate and the grait heat storage bed; the chimney is vertical to the pit plate; the flue is communicated with the chimney; each range comprises a hearth and a dust falling chamber under the hearth, and a grate is arranged between the hearth and the dust falling chamber; the ranges are a winter range and a summer range; a hot water ring is arranged at the upper part in the hearth of the winter range; the two ends of the hot water ring are communicated with one end of a water supply pipe and one end of a water return pipe; the other ends of the water supply pipe and the water return pipe are communicated with a heating radiator; a smoke outlet of the hearth of the winter range is communicated with a smoke outlet cylinder; a smoke outlet of the smoke outlet cylinder is arranged in the chimney; a sleeve is arranged outside the smoke outlet cylinder in a sleeving manner; a hot air chamber is hermetically formed between the smoke outlet cylinder and the sleeve; one end of the hot air chamber is communicated with a blast pipe and a speed-regulating blast blower; and the other end of the hot air chamber is communicated with a hot air outlet pipe.

Description

A thermal storage kang that is warm in winter and cool in summer

technical field

The invention belongs to the technical field of indoor heating facilities, and in particular relates to a heat storage kang which is warm in winter and cool in summer.

Background technique

The kang has a long history and rich cultural heritage, and is one of the earliest life heating methods mastered and used by working people in northern my country for a long time under severe cold climate conditions. The kang has a low cost and uses renewable biomass energy. It has certain ecological connotations and rich technical experience. It is in line with the concept of sustainable development and in line with the national energy conservation and emission reduction policies.

The heated kang, also known as "kang" or "big kang", is a building facility of masonry structure with a height of about 600mm-700mm, a width of about 2m, and a length that can be determined with the length of the room. The kang is composed of a kang board and a kang wall. There is a flue in the kang wall, which is covered with a concrete kang board, and the top of the kang board is covered with soil to smooth it out. The fire pit is hollow to form a flue, and the heating is carried through the flue. The smoke is finally discharged outside through the chimney from the chimney of the kang. Generally, the kang is connected to the stove. In order to make the air in the room clean, the stove is not in the same room as the kang. When heating, the firewood is used to heat the kang, so it is not necessary to burn the kang separately.

At the end of 2004, there were approximately 67 million heated kangs in the country, with a user population of 175 million. Due to the large number of rural residents in northern my country and the large heating area, it is difficult to achieve central heating; at the same time, the kang can use any form of biomass energy to improve the indoor thermal environment and reduce commodity energy consumption, without increasing the economic burden of farmers. Therefore, from the application characteristics of my country's rural energy structure, rural economic level and heated kang, heated kang will be widely used in a long period of time.

Existing heated kangs are divided into traditional floor-type heated kangs, overhead heated kangs (hanging kangs) and fluted wall-type heated kangs. These three kangs have common limitations:

1. The consumption of firewood is large, fuel is wasted, and the thermal efficiency needs to be improved.

2. The heat storage effect of the kang body is poor. The kang is intermittently heated. Because the intermittent time at night is long, the indoor temperature is very low in the early morning of severe winter, even lower than 5°C.

3. Due to the high outdoor temperature in summer, or the low outdoor air pressure in rainy days, if the heat pressure in the chimney and kang body is too small, or in the case of outdoor headwind (the wind direction is opposite to the smoke flow direction), when the wind pressure and heat pressure are opposite Sometimes, the stove will not burn well, causing the flue gas to flow back and causing indoor air pollution.

4. In summer, the indoor temperature is too high due to heating of the kang body due to cooking. Sleeping on the heated kang surface at night, people will feel that the room is hotter and the comfort is poor. Therefore, summer heated kang heating and indoor cooling are a pair of contradictory problems always.

The main reason for the low thermal efficiency of the stove is that the biomass fuel cannot be fully burned to produce a large amount of carbon dust, CO, CO ₂ , and a small amount of SO ₂ and NO _X . The blacker the smoke from the chimney, the more biomass fuel The less complete the combustion, the more harmful gas content. Insufficient combustion of biomass fuel has the following reasons:

1. The oxygen intake of the stove is not enough. The ash chamber of the traditional stove is below the ground, and the grate is flush with the ground. After the fuel is burned, heat pressure is generated, and oxygen cannot enter from the ash chamber. Therefore, the air intake of the stove is almost completely entered from the stove door, while the biomass fuel is added. It also blocks the air intake behind the stove itself, so the combustion lacks oxygen and cannot achieve full combustion.

2. The height difference between the kang and the stove is too small, and the smoke flow is not smooth.

From the perspective of fluid mechanics, since the flue gas rises during the flow, the greater the height difference between the kang and the stove, the more favorable the flue gas flow. But the height of the heated kang body should be appropriate, neither too high nor too short, too high is not conducive to getting on the kang and sitting on the edge of the kang, and too short is not conducive to the flow of smoke and the transfer of heat. Roughly 600㎜～700㎜, while the stove height is generally around 500㎜.

The combustion process of the flame produced by the combustion of biomass fuel is divided into two stages: namely, volatile analysis combustion and coke combustion. The former accounts for about 10% of the combustion time, and the latter accounts for 90%. Biomass fuel has the following characteristics in the combustion process: 1) Biomass fuel has low density, relatively loose structure, high volatile content, thermal decomposition begins at 250°C, and becomes very active at 325°C. 80% of the volatile matter can be separated out. During the combustion process, the volatile analysis time is relatively short. If the air supply is improper, the organic volatiles are easily discharged without being burned, and the exhaust smoke is black, and in severe cases, it is thick yellow smoke. Therefore, there must be sufficient diffused air supply, and the combustion chamber must have sufficient volume and a certain fire stop, so as to have a certain combustion space and combustion time. At the same time, the amount of air supply is also one of the keys to combustion efficiency. 2) After the volatile matter is gradually precipitated and burnt out, the remainder of the fuel is loose coke, and the air flow movement will wrap a part of the carbon particles into the flue to reduce the combustion rate. 3) After the volatile matter is burned out, the burning of coke is affected by the difficulty of ash wrapping and air penetration, which hinders the burning of coke and causes residual carbon in the ash. Therefore, the enhanced ventilation of the ash chamber can promote the full combustion of coke and improve the combustion efficiency of biomass fuel.

Therefore, when the height of the heated kang is more than 300mm higher than the stove, and the height of the ash chamber is greater than 200mm, the smoke exhaust is not only smoother, but also the air intake is large, and CO, H ₂ , CH ₄ , and hydrocarbon C in the volatile components of the fuel are produced. _x H _y , etc. will be completely burned, and the volatile matter will gradually precipitate and burn out, and the remainder of the fuel will be loose coke. When the air supply and oxygen supply increase, the coke will burn more fully.

The low thermal efficiency of the kang is mainly due to the poor heat storage effect of the kang.

In the traditional sense, the kang is also called "burning pool", which evolved from the "hot kang" in traditional dwellings in some parts of Northeast my country. The working principle of fuel pool heating is that when winter comes, fuel is fed into the fuel pool from the inlet and outlet, and then it is squeezed hard to fill the pool space. The denser the fuel, the more material in the pool body, and the longer the burning time Longer, and the less air there is in the fuel gaps, the easier it is to control the rate of smoldering. Therefore, the combustion pool is a combustion space where the main body is located under the ground of the heating building. The broken roots, stems, leaves and sawdust of plants are used as fuel and the fuel is in an anaerobic smoldering state. The heat generated is passed through the cooling surface. A heating method that increases indoor temperature through conduction, radiation and convection.

From the point of view of satisfying the physiological needs of people's thermal comfort, the thermal comfort of floor heating is better than that of traditional heating, because the thermal gradient of the room is higher, upper, lower, and the thermal environment quality is better. And the upper gradually decreases, giving people a good feeling of warming the feet and cooling the head; improving blood circulation and promoting metabolism. At the same time, after floor heating is used, the room temperature is evenly distributed from bottom to top, air convection is weakened, water loss is reduced, and the humidity environment is more beneficial to the human body. In addition, people rest and fall asleep on the traditional heated kang at night. Because the surface of the traditional heated kang is covered with bedding, the radiation and heat dissipation performance of the heated kang is greatly reduced. Therefore, the room temperature drops faster. The major feature of floor heating is to heat the room under the dual effects of radiation intensity and temperature, forming a more reasonable indoor temperature field distribution and thermal radiation. Therefore, the biggest advantage of floor heating is energy saving, and the energy saving range can reach 30%. Therefore, when using floor heating to design the room temperature, the room temperature is 2°C lower than that of ordinary floor heating, which can meet the required effect of floor heating. This phenomenon is especially prominent when sleeping at night.

At present, the existing floor kang is convenient for people to enter and discharge materials into the fuel pool. The depth of the fuel pool is generally more than 1.5m, so the construction cost of building the fuel pool is increased; at the same time, the area of the fuel pool is generally limited, and the amount of fuel used is quite large. , and it needs to be processed into powder, so the cost of fuel usage is increased; in addition, the feeding and discharging of the fuel pool is laborious and labor-intensive, and the workload is large; The sealing effect of the board and the flue part is not good, which will pollute the indoor air and cause carbon monoxide poisoning.

Contents of the invention

Aiming at the problems existing in the existing heated kang and ground kang, the present invention provides a heat storage system that is warm in winter and cool in summer with water heating, hot air supply, and basically controllable room temperature. Kang.

In order to achieve the above object, the present invention adopts the following technical scheme, a kind of thermal storage heatable kang which is warm in winter and cool in summer, comprises three parts below the ground, a kang body, a stove and a chimney. For smoke exhaust components;

The kang body includes a kang board and a pebble heat storage bed, and there is a gap between the kang board and the pebble heat storage bed to form a flue; the chimney is arranged perpendicular to the kang board and has an outer end opening, and a chimney is opened at the junction of the chimney and the chimney. There is a flue outlet to connect the two;

The stove includes a hearth with a furnace door and an ash chamber with an ash chamber door, the ash chamber is arranged below the hearth, and a grate is arranged between the hearth and the ash chamber; the stove is divided into For winter stoves and summer stoves, a hot water ring is arranged above the hearth of the winter stove, and the hot water ring is fixed and supported by the hot water ring bracket; the inside of the hot water ring is hollow, and its two ends are respectively fixed to one end of the water supply pipe and the return pipe The other ends of the water supply pipe and the return pipe are fixedly connected with the radiator respectively, and the water supply pipe is connected with the expansion tank; the smoke outlet of the stove in winter is connected with the smoke exhaust chamber, and the inside of the smoke exhaust chamber is hollow The smoke outlet of the smoke exhaust chamber is set in the flue of the kang body; a sleeve is set outside the smoke exhaust chamber, and a hot air chamber is sealed between the smoke exhaust chamber and the sleeve, and one end of the hot air chamber is sent The air pipe is connected with the speed-regulating blower, and the other end is connected with the hot air outlet pipe. The outlet of the hot air outlet pipe is arranged in the room outside the body of the kang for heating; The smoke exhaust pipe of the stove is connected, and the outlet of the smoke exhaust pipe of the stove in summer is connected with the chimney, and a kang surface is arranged on the upper surface of the kang board.

The furnace door, the ash chamber door, the ash chamber, the air supply pipe, the stove, the fire grate, the hot water ring, the hot air outlet pipe and the smoke exhaust chamber are all made of heat-resistant metal.

The smoke exhaust pipe of the stove in summer is a cylinder tile pipe.

The height difference between the kang body and the stove is 600mm.

The height of the hearth of the stove is 900mm, the height of the ash chamber is 300mm, and the height of hanging fire is 200mm.

The smoke exhaust chamber is composed of a straight section and a straight section, the angle between the straight section and the horizontal is 60°, and the straight section is located in the flue of the kang body.

The kang board is a reinforced concrete kang board.

Beneficial effects of the present invention:

(1) The smoke exhaust chamber of the present invention can form secondary combustion; from the perspective of fluid mechanics, since the smoke rises during the flow, the greater the height difference between the kang and the stove, the more favorable the flow of smoke. The smoke exhaust can be smoother, and the thermal efficiency of the stove can be further improved; since the height difference between the Kang body and the stove is 600mm (that is, the height difference between the living room floor and the top surface of the stove is 600mm), and the straight section of the smoke exhaust chamber is in line with the The horizontal angle is 60°. Therefore, after the volatile matter is gradually precipitated and burned, the remainder of the fuel is loose coke, and the air flow movement will wrap a part of the coke particles into the inclined straight section of the smoke exhaust chamber to form secondary combustion (primary combustion) The intermediate product of combustion reacts with the surrounding air again to form a stable final product), the secondary combustion can increase the utilization of heat, and can eliminate smoke and dust, which has the effect of environmental protection;

(2) The hot water circle of the present invention can heat the water in the hot water circle when the biomass fuel is burned, and the hot water circle, the expansion tank and the radiator in the living room form a hot water circulation plumbing system, which increases the indoor temperature;

(3) The stove of the present invention is divided into a winter stove and a summer stove. The winter stove can be heated by a water heating system, a wind heating system, and an underground pebble heat storage bed; The smoke exhaust pipe of the stove is discharged outside through the chimney, thus achieving the effect of warming in winter and cooling in summer; while in spring and autumn, the stove can be used in winter, the wind heating system is turned off, and only the underground pebble heat storage bed and water heating system are used for heating to meet the room temperature requirements;

(4) The heat storage capacity of the floor kang of the present invention is greatly improved; pebbles are good sensible heat storage materials, and there are uniform pores between the pebbles, the overall heat capacity and thermal conductivity of the pebble heat storage bed are high, and the heat storage effect is good; The heat energy after biomass fuel combustion not only directly heats the kang surface, but also is stored in the pebble heat storage bed in the kang body to realize heat storage and heat release, and then heat the kang surface for a long time. Compared with the traditional kang, the heat loss is small and the thermal efficiency is high. Make the kang surface reach the thermal comfort temperature required by the human body for a long time, and generate the same heat and consume less fuel to achieve the effect of energy saving;

(5) The floor kang of the present invention has good thermal performance, and the temperature of the room rises rapidly; the hot air chamber is connected to the speed-regulating blower through the air supply pipe, and the heated air in the hot-air chamber is sent into the room through the blowing action of the speed-regulating blower, so that the room can quickly As the temperature rises, at the same time, the indoor cold air is replenished into the speed-adjustable blower, so that the hot and cold air moves quickly, forming a thermal air-conditioning effect, and the heating effect is good;

(6) The floor kang of the present invention is provided with an ash chamber with a height of 300 mm above the ground, which plays the role of secondary air intake, increases the oxygen intake, ignites easily and quickly, and fuel wood burns more fully; the height of hanging fire is 200mm, to ensure that the high-temperature flame touches the bottom of the pot, the heat can be fully utilized, and the cooking time is significantly shortened; the amount of ash produced by the complete combustion of biomass fuel is less, which is clean and reduces the labor intensity of ash removal;

(7) The underground pebble heat storage bed of the present invention can play the role of cooling in summer; summer is hot and hot, and the temperature can reach above 30°C, and the indoor underground pebble heat storage bed is placed underground, so the temperature of the pebbles will be lower than indoors Temperature, pebbles are good sensible heat storage materials, which will absorb the heat of indoor air, so that the indoor temperature will drop and the room will be cooler and more comfortable.

Description of drawings

Fig. 1 is a schematic diagram of a farm house plane applying an embodiment of the present invention;

Fig. 2 is A-A sectional view of Fig. 1;

Fig. 3 is a partially enlarged view of part A of Fig. 2;

Fig. 4 is the B-B sectional view of Fig. 1;

Fig. 5 is a partially enlarged view of part B of Fig. 4;

Fig. 6 is a schematic diagram of the plumbing system;

Fig. 7 is a schematic sectional view of a hot water ring;

Fig. 8 is the elevation schematic diagram of hot water ring;

Fig. 9 is a schematic structural view of the air heating system;

Fig. 10 is a C-C sectional view of Fig. 9;

In the figure: 1—kitchen, 2—main living room, 3—toilet, 4—living room, 5—storage room, 6—living room, 7—winter stove, 8—summer stove, 9—steps, 10—radiator, 11— Adjustable speed blower, 12—kitchen floor, 13—kang board, 14—pebble heat storage bed, 15—window, 16—chimney, 17—foundation, 18—roof, 19—smoke hole, 20—exhaust chamber, 21—Hot air outlet pipe, 22—Hot water ring, 23—Water supply pipe, 24—Water return pipe, 25—Expansion water tank, 26—Air supply pipe, 27—Smoke outlet of smoke exhaust chamber, 28—Smoke exhaust outlet, 29—flue, 30—exit of flue, 31—exhaust pipe of summer stove, 32—furnace door, 33—hearth, 34—furnace grate, 35—ash chamber, 36—pot, 37—ash Chamber door, 38—hot air chamber, 39—kang body, 40—kang face, 41—stove, 42—sleeve.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1, Fig. 2, and Fig. 4, a kind of thermal storage floor kang which is warm in winter and cool in summer includes three parts: a kang body 39 below the ground, a stove 41 and a chimney 16. The stove 41 is divided into a winter stove 7 and a summer stove 7. Stove 8, kang body 39 are heat dissipation components, and stove 7 is a heat source body in winter, and chimney 16 is a smoke exhaust component.

As shown in Fig. 2 and Fig. 4, the kang body 39 includes a kang board 13 and a pebble heat storage bed 14, and a gap is left between the kang board 13 and the pebble heat storage bed 14 to form a flue 29; the chimney 16 is vertical Arranged on the kang board 13 and open at the outer end, a flue outlet 30 is provided at the junction of the flue 29 and the chimney 16 to make the two communicate, and a smoke hole 19 is opened at the place where the flue 29 crosses the wall.

As shown in Figures 3 and 5, the stove 41 includes a stove 33 with a door 32 and an ash chamber 35 with an ash chamber door 37, the ash chamber 35 is arranged below the hearth 33, A gap-type fire grate 34 is arranged between the ash chamber 35 . As shown in FIG. 1 , the stove 41 is divided into a winter stove 7 and a summer stove 8 , and the winter stove 7 and the summer stove 8 are located in the kitchen 1 side by side. As shown in Fig. 2 and Fig. 3, a hot water ring 22 is arranged above the interior of the stove 7 and the hearth 33 in winter, and the hot water ring 22 is fixedly supported by a bracket of the hot water ring; as shown in Fig. 7 and Fig. 8, the hot water The inside of the ring 22 is hollow and filled with water. The two ends are fixedly communicated with one end of the water supply pipe 23 and the return pipe 24 respectively, and the other ends of the water supply pipe 23 and the return pipe 24 are respectively fixedly connected with the radiator 10. The expansion tanks 25 are connected to each other to form a water heating system with gravity natural circulation, as shown in Figure 6; the smoke exhaust port 28 on the upper part of the stove 7 stove 33 is connected to the smoke exhaust chamber 20 in winter, and the smoke exhaust chamber 20 is hollow inside. The smoke outlet 27 of the smoke exhaust chamber is arranged in the flue 29 of the kang body 39; a sleeve 42 is set outside the smoke exhaust chamber 20, and a hot air chamber is formed by sealing between the smoke exhaust chamber 20 and the sleeve 42 38, one end of the hot air chamber 38 communicates with the speed-regulating blower 11 arranged outside the kang through the air supply pipe 26, and the other end communicates with the hot air outlet pipe 21, and the outlet of the hot air outlet pipe 21 is arranged outside the kang body 39. In the room of heating, wind heating system is formed, as shown in Fig. 9, Fig. 10; By changing the speed of speed-regulating blower 11, send into the speed and the size of hot blast in air-supply pipe 26, thereby realize the adjustment of indoor temperature; Said summer Stove 8 is used when not needing heating in summer, and as shown in Figure 4 and Figure 5, there is no hot water circle 22 in 8 stoves 33 of stove in summer, and the smoke exhaust port 28 of top and the summer stove that are arranged on kang body 39 flue 29 The smoke exhaust pipe 31 is connected, and the outlet of the summer stove smoke exhaust pipe 31 is connected with the chimney 16 , and the upper surface of the kang board 13 is provided with a kang surface 40 .

The furnace door 32, the ash chamber door 37, the ash chamber 35, the air supply pipe 26, the stove 33, the grate 34, the hot water ring 22, the hot air outlet pipe 21 and the smoke exhaust chamber 20 are heat-resistant Made of metal.

The summer stove smoke exhaust pipe 31 is a cylinder tile pipe with higher thermal resistance and better heat insulation.

As shown in Fig. 2 and Fig. 4, in the present embodiment, the kitchen 1 ground is lower than main room 2, room 6 ground 1.5m, and kitchen 1 forms a semi-basement; The height is 900mm, forming an elevated stove, which is more comfortable to bend over for cooking than the traditional 600mm high stove; the height of the ash chamber 35 is 300mm, and the ash chamber 35 is located above the ground, which plays the role of secondary air intake , the oxygen intake is increased, the ignition is easy to ignite and the firewood burns more fully; the height of the hanging fire is 200mm, which ensures that the high-temperature flame contacts the bottom of the pot 36, the heat can be fully utilized, the cooking time is significantly shortened, and the biomass fuel is reduced by half; Due to the smooth flow of flue gas, the biomass fuel in the stove 41 is completely burned, which effectively improves the smoky and harsh environment in the stove, shortens the cooking time by half, reduces the labor intensity of rural women, and is beneficial to health; The fire height of the stove 41 is the distance between the grate 34 and the center of the bottom of the pot 36 (pot navel).

As shown in FIGS. 2 and 3 , the smoke exhaust chamber 20 is composed of an oblique straight section and a straight section, the angle between the oblique straight section and the horizontal is 60°, and the straight section is located in the flue 29 of the kang body 39 .

The kang board 13 is a reinforced concrete kang board.

Since the height difference between the kang body 39 and the stove 41 is 600 mm, and the angle between the straight section of the smoke exhaust chamber 20 and the horizontal is 60°, the air flow will wrap a part of the coke particles into the smoke exhaust chamber 20. Secondary combustion can be formed in the second stage, which can increase the utilization of heat and increase the combustion efficiency; it can also eliminate smoke and dust, which has the effect of environmental protection and reduces harmful gas emissions.

The heatable brick bed of the present invention stores the heat of flue gas flowing through the heatable brick bed body 39, and then releases the heat into the room for heating. The more heat that the ground kang body 39 absorbs, the stronger the heating capacity will be. The traditional heated kang only relies on the kang plate 13 to store heat, and the heat absorbed is less. As shown in Fig. 2 and Fig. 4, a heat storage bed 14 of pebbles is provided in the kang body 39 of the present invention. Pebbles are good sensible heat storage materials, and there are uniform pores between the pebbles. The heat capacity and thermal conductivity are high, and the heat storage effect is good, so that the heat storage capacity of the kang is greatly improved, and the surface of the kang 40 is kept warm for a longer time; and the thermal stability is good, and the temperature of the surface of the kang 40 is balanced.

The use process of the present invention is illustrated below in conjunction with accompanying drawing:

As shown in Figure 3, when using in winter, open the furnace door 32 and the ash chamber door 37, add biomass fuels such as crop stalks into the stove 33 and ignite, the air in the hot air chamber 38 will be heated immediately, and the speed-regulating blower 11 will be turned on. The power switch is connected with the air supply pipe 26 between the speed-regulating blower 11 and the hot-blast chamber 38, and the hot air in the hot-blast chamber 38 will be sent into the room through the hot-blast outlet pipe 21 under the blowing action of the speed-regulating blower 11, and the hot air will flow out. The air outlet temperature of the air duct 21 can exceed 120°C, and the indoor cold air is replenished into the speed-adjustable blower 11. In this way, the hot and cold air quickly convects to form a thermal air-conditioning effect, and the indoor temperature will quickly rise to achieve instant heating effect. It can be used within 20 minutes. The room temperature reaches 15° C.; when the indoor temperature reaches 18° C., the speed-regulating blower 11 is turned off to keep the required temperature in the room. Biomass fuel combustion can heat the water in the hot water circle 22 to boiling, and the hot water in the hot water circle 22 enters the radiator 10 through the water supply pipe 23, and the radiator 10 releases heat indoors. The pyrotechnics produced after biomass fuel combustion enters the flue 29 from the smoke exhaust chamber 20, the kang surface 40 is slowly heated, and at the same time, the pebbles in the pebble heat storage bed 14 are heated to store heat energy, and the flue gas is finally discharged outside through the chimney 16; Close furnace door 32 and ash chamber door 37 after material fuel burns out, air is no longer circulated in the ground kang body 39. Therefore, under the heat radiation effect of the kang surface 40, the heat conduction, heat convection, heat radiation effect and the heat convection of the hot air chamber 38 of the radiator 10, the thermal environment quality of the room is better.

As shown in Figure 3, when used in spring and autumn, the combustion of biomass fuel can heat the water in the hot water ring 22 to boiling, and the hot water in the hot water ring 22 enters the radiator 10 through the water supply pipe 23, and the radiator 10 flows into the room. Release the heat. The hot flue gas produced by the combustion of biomass fuel enters the flue 29 from the smoke exhaust chamber 20, the kang surface 40 is gradually heated, and at the same time, the pebbles in the pebble heat storage bed 14 are heated to store heat energy, and the flue gas is finally discharged outside through the chimney 16 Can open or close the furnace door 32 and the ash chamber door 37 depending on the weather temperature. Because the outdoor air temperature in spring and autumn is higher than the outdoor air temperature in winter, there is no need to open the speed-regulating blower 11, and three meals a day can satisfy the indoor heating temperature because of the heating of the Kang body 39 and the heating of the radiator 10 due to cooking.

As shown in Figure 5, summer stove 8 is used in summer, and the hot flue gas produced after biomass fuel combustion is passed through flue outlet 30 by summer stove exhaust pipe 31, and unheated kang surface 40 and pebble heat storage bed 14 are directly passed through. Chimney 16 is discharged outdoors, no longer makes indoor temperature increase because of cooking to the heat supply of heatable kang body 39.

Utilizing the thermal storage kang of the present invention, during the winter heating period, the waste heat from cooking for three meals can be used to meet the heating demand throughout the day, which can ensure that the average heating temperature of the living room reaches 18°C, and the average room temperature of auxiliary rooms such as kitchens and warehouses reaches 10°C; Can save fuel more than 50% compared with common heating stove or heated kang, and the thermal efficiency of the kang body 39 can reach 90%.

Practical research shows that: the heat storage kang which is warm in winter and cool in summer of the present invention utilizes renewable biomass energy to achieve full combustion of biomass fuel, which not only saves biomass fuel, but also reduces harmful gas emissions, greatly improving the performance of the kang. Its own thermal comfort and comprehensive efficiency improve the thermal environment quality and air quality of farm houses to a certain extent, which is of great significance to improving the heating conditions in rural areas of our country, and its energy saving and environmental protection are in line with the concept of sustainable development and the national energy saving and reduction. It has great potential for development and value for popularization and application.

Claims (7)

1. an accumulation of heat ground a heatable brick bed cool in summer and warm in winter is characterized in that comprising a heatable brick bed body, cooking stove and chimney three parts that locate below ground level, and a heatable brick bed body is thermal component, and cooking stove is heat source body, and chimney is the smoke evacuation parts;

Described a heatable brick bed body comprises a heatable brick bed plate and pebble heat storage bed, leaves the gap and form flue between a heatable brick bed plate and pebble heat storage bed; Described chimney arranges and outer end opening that perpendicular to a heatable brick bed plate flue offers the flue outlet flue with the chimney junction is communicated with both;

Described cooking stove comprises the chamber of a kitchen range with fire door and has the ash-falling chamber of ash-falling chamber's door that described ash-falling chamber is arranged on the below of the chamber of a kitchen range, is provided with fire grate between the chamber of a kitchen range and ash-falling chamber; Described cooking stove be divided into winter cooking stove and summer cooking stove, winter, the top of cooking stove chamber of a kitchen range inside was provided with Circle device for heating water, Circle device for heating water is by Circle device for heating water carriage fixed support; Described Circle device for heating water inner hollow, two ends fixedly are communicated with an end of feed pipe and return pipe respectively, and the other end of feed pipe and return pipe fixedly is communicated with radiator respectively, and described feed pipe is connected with expansion tank; Winter, the exhaust opening of the cooking stove chamber of a kitchen range was connected with the smoke extraction chamber cylinder, described smoke extraction chamber cylinder inner hollow, and smoke extraction chamber cylinder outlet flue is arranged in the flue of a heatable brick bed body; Outer cover at described smoke extraction chamber cylinder has sleeve, sealing forms hot air chamber between smoke extraction chamber cylinder and the sleeve, one end of hot air chamber is connected with speed governing blast blower through ajutage, and the other end is connected with the hot blast discharge pipe, and the outlet of hot blast discharge pipe is arranged on external the indoor of heating that need of a heatable brick bed; Summer, the exhaust opening of the cooking stove chamber of a kitchen range was connected with the cooking stove smoke exhaust pipe in summer that is arranged in a heatable brick bed body flue, and described summer, the outlet of cooking stove smoke exhaust pipe was connected with chimney, was provided with a heatable brick bed face at the upper surface of described a heatable brick bed plate.

2. accumulation of heat cool in summer and warm in winter according to claim 1 ground a heatable brick bed is characterized in that described fire door, ash-falling chamber's door, ash-falling chamber, ajutage, the chamber of a kitchen range, fire grate, Circle device for heating water, hot blast discharge pipe and smoke extraction chamber cylinder are heating resisting metal and make.

3. accumulation of heat cool in summer and warm in winter according to claim 1 ground a heatable brick bed is characterized in that described summer, the cooking stove smoke exhaust pipe was clay pipe.

4. accumulation of heat cool in summer and warm in winter according to claim 1 ground a heatable brick bed, the difference in height that it is characterized in that described a heatable brick bed body and cooking stove is 600mm.

5. accumulation of heat cool in summer and warm in winter according to claim 1 ground a heatable brick bed, the height that it is characterized in that the kitchen range top of described cooking stove is 900mm, and the height of ash-falling chamber is 300mm, and the height that hangs fire is 200mm.

6. accumulation of heat cool in summer and warm in winter according to claim 1 ground a heatable brick bed is characterized in that described smoke extraction chamber cylinder is comprised of oblique straight section and flat segments, and tiltedly straight section and horizontal sextant angle are 60 °, and flat segments is positioned at the flue of a heatable brick bed body.

7. accumulation of heat cool in summer and warm in winter according to claim 1 ground a heatable brick bed is characterized in that described a heatable brick bed plate is reinforced concrete adobe kang plate.

Images