Thermal storage heated brick bed capable of being warm in winter and cool in summer

Abstract

The invention discloses a thermal storage heated brick bed capable of being warm in winter and cool in summer, which belongs to the technical field of indoor heating facilities. The invention provides a thermal storage heated brick bed which is good in instant heat performance, convenient, clean, environmental-friendly and energy-saving, can basically control the room temperature, and is warm in winter and cool in summer. The thermal storage heated brick bed comprises a stove, a bed body and a chimney, wherein the stove comprises a hearth and an ash dropping chamber; the ash dropping chamber is arranged below the hearth; a grate is arranged between the hearth and the ash dropping chamber; a hot blast feeding chamber is arranged above the interior of the hearth; the bed body comprises a bed surface, a bed plate, an upper smoke and fire channel, a lower smoke and fire channel, a smoke distribution chamber, a pebble thermal storage bed, a bed wall and a heating pipe; a gap is reserved between the bed plate and the scree thermal storage bed, so as to form the upper smoke and fire channel; the lower smoke and fire channel is arranged below the upper smoke and fire channel; the heating pipe is arranged in the upper smoke and fire channel; the smoke distribution chamber is arranged between the upper smoke and fire channel and the lower smoke and fire channel; the smoke distribution chamber is communicated with the hot blast feeding chamber through a smoke exhaust cavity column; and smoke vents are respectively formed between the upper smoke and fire channel and the chimney and between the lower smoke and fire channel and the chimney, so that the upper smoke and fire channel is communicated with the lower smoke and fire channel.

Description

technical field [0001] The invention belongs to the technical field of indoor heating facilities, and in particular relates to a thermal storage kang which is warm in winter and cool in summer. Background technique [0002] Kang has a long history and rich cultural heritage. It is the crystallization of wisdom of the working people in northern my country who have lived in the severe cold climate for a long time. It has become one of the earliest heating methods mastered and used by human beings. The heated kang is low in cost and uses renewable biomass energy. It has certain ecological connotations and rich technical experience. It conforms to the concept of sustainable development and the national energy conservation and emission reduction policy, and has certain development potential. [0003] At present, rural energy consumption in northern China accounts for 56% of the total rural energy consumption in the country, and more than 80% of rural energy consumption is used fo...

AI Technical Summary

Problems solved by technology

Therefore, the heating capacity of the traditional floor-standing heated kang is very limited and there are the following problems: ① firewood consumption is large, fuel is wasted, thermal efficiency is low, indoor heat dissipation is small, and the heating effect is not good

According to the survey, the thermal efficiency of the kang body is about 14-18%, and the comprehensive thermal efficiency of the kang and stove is less than 45%.

②The heat storage effect of the kang body is poor, and the heat provided by cooking alone cannot meet the demand for heating throughout the day in winter, and local heating or other consumable heating methods are needed for auxiliary heating

④The kang is poor in instant heating, and the heating rate of the room is slow

Although the overhead kang has been greatly improved, it also has its own defects and deficiencies: ①The heated kang mainly uses radiation heat dissipation, and the distance between the lower kang board and the ground is only 200-300mm. If only one side of the lower kang board is ventilated, the other The heat is difficult to enter the personnel activity area and is mainly transferred to the ground in the form of radiation heat dissipation, and the heat is finally lost through the ground

② Hanging kang heats up quickly and cools down quickly. If the building envelope is not well insulated, the heat released will be quickly transferred to the outside through the envelope. It is only suitable for rooms with small heat loads

However, the flue wall type heated kang still has the following disadvantages: ①When the fire is fired inside the flue wall, the temperature of the exhaust smoke from the chimney is high, and the heat loss of the heated kang system is relatively large, which wastes fuel; ②When only the stove is burned, the smoke inside the heated kang cannot be dispersed evenly in time , leading to uneven temperature on the kang surface, and smoke falling will occur when the weather is bad; ③The temperature of the middle and rear ends of the kang wall is too low, and the utilization rate of the heat of the smoke on the kang wall is too low; ④In late autumn and early winter, people only burn The stove can only rely on the waste heat from cooking to heat the room. However, the surface of the kang directly above the fire wall is composed of two layers of concrete slabs and soil layers, and does not directly exchange heat with the high-temperature flue gas. Uncomfortable on the kang

And when deep winter comes, when cooking alone cannot meet the heating needs of the room, people need to start the Kang fire wall to heat the Kang. High, when the human body touches, there is a hot feeling

⑤When the fuel in the fire wall is burning, the temperature in the high temperature area of ​​the Kang wall fluctuates between 80 and 140°C. Since the outer surface of the Kang wall is directly exposed to the indoor environment, it is easy to burn people.

[0009] 1. The consumption of firewood is large, fuel is wasted, and the thermal efficiency needs to be improved

[0010] 2. The heat storage effect of the kang body is poor. The kang is intermittently heated. Due to the long intermittent time at night and the very low outdoor temperature in the early morning of severe winter, when people wake up in the morning, the indoor temperature is even lower than 5°C

[0011] 3. The temperature of the kang surface is uneven

[0012] 4. 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 an outdoor headwind (the wind direction is opposite to the smoke flow direction), when the wind pressure and heat pressure have opposite effects When it is used, the stove will not burn well, causing the flue gas to flow back and causing indoor air pollution.

[0013] 5. In summer, the indoor temperature is too high due to the heating of the kang body due to cooking.

For stoves with ash chambers, the ash chambers are 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. After the material fuel is added into the stove, it also blocks the air intake, so the combustion lacks oxygen and cannot achieve full combustion

The hoisting height of the stove without ash chamber is too high, more than 300mm, so the high-temperature flame cannot touch the bottom of the pot, the heat cannot be fully utilized, and the cooking time is prolonged. People often add a lot of fuel to make the high-temperature flame contact the bottom of the pot as much as possible. Too much fuel will still block the air intake, and the oxygen supply is not enough, and it will also not achieve full combustion

[0016] 2. The height difference between the kang and the stove is too small, and the smoke flow is not smooth

[0018] The low thermal efficiency of the kang is mainly due to the poor heat storage effect of the kang, and secondly, the heat loss will be increased if the contact parts of the kang and the outer wall are not insulated

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