CN211952973U - A hot water stratified thermal storage type energy-saving kang - Google Patents

Abstract

The utility model discloses a hot water stratified thermal storage type energy-saving kang. A hot water storage tank is arranged inside the kang body; The space where the upper, middle and lower layers are connected to each other; the partition plate is provided with uniformly distributed water passages; the heat source water inlet pipe arranged on the upper side wall of the hot water storage tank and the heat source water return pipe arranged on the lower side wall; The hot water prepared by the heat source equipment is sent to the upper layer of the hot water storage tank through the heat source water inlet pipe, and the hot water in the lower layer of the hot water storage tank flows back to the heat source equipment through the heat source return pipe. The hot water storage tank is combined with the hanging kang to store water in layers at different temperatures, so that the upper kang surface can reach a suitable temperature through heat transfer through the water tank. The hot water storage tank can also heat the room through the kang body. No heat loss. It solves the problems that the existing heated kang biofuel is troublesome, unsanitary, easy to infiltrate the room and affects the indoor air quality, and the kang body contacts the ground and causes heat loss.

Description

A hot water stratified thermal storage type energy-saving kang

technical field

The utility model relates to the field of heating, ventilation and air conditioning, in particular to a hot water stratified thermal storage type energy-saving kang.

Background technique

Kang is one of the building facilities for heating residential houses in northern regions, especially rural houses in winter, among which the most common is the heated Kang and usually the floor-standing Kang. The kang is generally connected to the stove, so that the heat-bearing flue gas generated by the combustion of fuel during cooking can be used to heat the kang body. However, the heat utilization rate of the existing heated kang is low. Since the heated kang is directly grounded, the heat generated by the stove body is lost from the ground, resulting in large heat loss and a waste of resources. In addition, the fuel supply is troublesome, and the sanitary conditions are poor. The material of the heated kang is generally adobe, and the sealing performance is poor. It is easy to cause smoke to penetrate into the room and affect the indoor air quality.

Chinese patent CN202734035U discloses a new type of biomass energy-saving kang. The box body of the energy-saving kang is made of steel plates and is sealed and assembled into a set. It has the advantages of tight sealing, no smoke in winter, no moisture return in summer, fast heat dissipation and good heating effect. . However, the bottom of the energy-saving kang is connected to the ground, the heat lost from the bottom is not effectively utilized, and the problem of insufficient heat utilization of the original heated kang is not solved. In addition, this kind of kang is not suitable for use of other heat sources such as solar energy and air energy for thermal backup, and the use of biomass fuel has the disadvantage of troublesome fuel replenishment.

Chinese patent CN205825219U discloses an energy-saving kang, which adopts the form of a hanging kang, which effectively solves the problem of insufficient heat utilization. However, this kind of kang does not solve the problem that the smoke easily penetrates into the room and affects the indoor air quality, and it is also not suitable for the use of other heat sources such as solar energy and air energy.

Utility model content

In view of the above-mentioned deficiencies in the prior art, the purpose of this utility model is to provide a brand-new hot water stratified thermal storage type energy-saving kang, which uses the stored hot water as a carrier for heat transfer, and solves the trouble of supplementing the existing heated kang with biofuel. , unsanitary, flue gas easily penetrates into the room and affects the indoor air quality, the direct grounding of the kang body causes heat loss, and it can effectively maintain the suitable temperature of the kang surface, and the hot water tank can also be used as room heating equipment.

To solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A hot water stratified thermal storage type energy-saving kang comprises a kang body; a hot water storage tank is arranged in the kang body; The space where the upper, middle and lower layers are connected to each other; the partition plate is provided with uniformly distributed water passages; the heat source water inlet pipe arranged on the upper side wall of the hot water storage tank and the heat source water return pipe arranged on the lower side wall; The hot water prepared by the heat source equipment is sent to the upper layer of the hot water storage tank through the heat source water inlet pipe, and the hot water in the lower layer of the hot water storage tank flows back to the heat source equipment through the heat source return pipe.

Further, the hot water storage tank forms a hot water heating system through hot water pipelines, circulating water pumps, heat source equipment, and room heating equipment; The heating water return pipe arranged on the wall; the hot water on the upper layer of the hot water storage tank can provide heating hot water to the heating equipment in other rooms through the heating water supply pipe, and the heated hot water flows back to the hot water storage tank through the heating water return pipe .

Further, the bottom of the kang body is provided with a column for supporting the kang body, so that the kang body forms a hanging kang structure, which avoids the ineffective heat loss caused by the contact between the kang body and the ground. The efficiency of hot water utilization also saves the storage space of the hot water storage tank.

Wherein, the heat source equipment is a solar water heater, a biofuel boiler or an air source heat pump. Several devices can also be used in conjunction. In actual use, the heat source equipment suitable for local use can be selected according to the local energy situation.

In the utility model, the hot water heated by the heat source equipment is input into the hot water storage tank for heating the kang or/and the room. The hot water is sent to the upper layer of the water tank through the heat source water inlet pipe, and the kang surface is heated through the top of the water tank, so that the kang surface can reach a suitable temperature for people to rest; at the same time, the hot water stored in the upper layer of the water tank can also enter other rooms through the heating water supply pipe. The heating equipment performs heat dissipation and heating, and the water after heat dissipation flows into the middle layer of the water tank through the heating return pipe. The upper layer of the hot water storage tank dissipates heat and heats the kang surface, and the density of the upper layer of hot water will increase and then natural stratification will occur, so that the upper, middle and lower layers of cold and hot water are stored in layers in the water tank. It plays the role of stabilizing the flow and balancing the pressure. The lower temperature water is pumped to the heat source equipment through the heat source return pipe. After being heated by the heat source equipment, it is sent to the upper layer of the hot water storage tank again, so that the hot water stored in the water tank can be used for the kang and the room. Continuous heating.

Preferably, the kang body is made of high-hardness stone slabs of granite and marble, using slabs with abundant local resources such as granite or marble and other high-hardness stone materials, whose heat transfer performance and mechanical strength are better than those of traditional floor-standing kangs. adobe or brick.

The kang surface of the kang body is also provided with a cotton mattress-type thermal insulation layer with a thickness of 30-50 mm.

Preferably, a thermally conductive material is filled in the gap between the top of the hot water storage tank and the bottom surface of the kang body, and between the side wall of the water tank and the side wall of the kang body. The heat-conducting material is cobblestone or crushed stone, so as to increase the heat transfer efficiency of the water body in the water tank to the kang surface.

Preferably, the bottom of the kang body is also provided with a column for supporting the kang body, the column makes the whole kang body form a hanging kang structure, avoiding the ineffective heat loss caused by the contact between the kang body and the ground, and the heat storage and heat dissipation of the water tank are all used as room The heating heat improves the utilization efficiency of hot water, and also saves the space for placing the hot water storage tank.

Compared with the prior art, the utility model has the following advantages:

1. The present utility model provides a brand-new energy-saving, non-polluting hot water stratified thermal storage type water kang, which is transformed on the basis of the original kang, the water tank used does not occupy extra space, and is maintained by hot water thermal storage and heat dissipation. The use temperature of the kang surface avoids the easy occurrence of flue gas leakage affecting the indoor air quality, troublesome and unsanitary situations of biofuel replenishment during the use of the existing kang. The structure of the layered water tank is used to store cold and hot water with different temperatures in layers, and the interior of the hot water storage tank is divided into three layers by a perforated partition. The upper layer of hot water heats the kang surface and the cotton mattress insulation material, so that the kang surface reaches the suitable temperature for people to rest, and the temperature of the kang surface is evenly distributed.

2. After the heat dissipation of the upper layer of the hot water storage tank heats the kang surface, the density of the upper layer of hot water will increase and then natural stratification will occur, so that the upper, middle and lower layers of the water tank are stored in layers with holes. The partition plate plays the role of stabilizing the flow and balancing the pressure; the lower temperature water is pumped to the heat source equipment through the heat source return pipe, heated by the heat source equipment, and then sent to the upper layer of the hot water storage tank to realize the circulating hot water for the kang and the room. Continuous heating; the hot water in the upper layer of the hot water storage tank can also enter the heating equipment in other rooms through the heating water supply pipe on the upper layer of the water tank for heat dissipation, and the heating return water flows into the middle layer of the water tank. The hot water of each layer of the water tank is dissipated to the room through the kang body. The water tank can also store the hot water prepared by the heat source equipment. By adjusting the hot water level on the upper layer of the water tank, it can achieve continuous heating for multiple rooms at the same time.

3. The utility model uses hot water for heating, which replaces the high-temperature flue gas produced by the combustion of the traditional heated kang, avoids the situation that the flue gas leaks and pollutes the indoor environment due to the poor sealing of the kang body, and also avoids the easy leakage of electricity from the electric heated kang. The danger of a safety accident is more environmentally friendly and safer. The hot water stratified water storage tank adopts a hanging kang structure, which avoids the ineffective heat loss caused by the contact between the kang body and the ground. Box storage space.

4. The kang body of the present utility model adopts materials with good heat transfer performance and high mechanical strength, and the gaps between the top of the water tank and the kang surface, and between the side wall of the water tank and the side wall of the kang body are filled with thermally conductive materials, and the kang surface is matched with the heat-conducting material. The setting of the upper thermal storage layer maximizes the use of the heat of the thermal storage hot water.

5. The heat source of the hot water in the water tank of the utility model can use local abundant solar energy resources or biomass energy or air energy heat pump during the valley electricity price period, and the energy supply forms are various to meet different environmental conditions in different regions.

Description of drawings

Figure 1 is a schematic structural diagram of a hot water stratified thermal storage type energy-saving kang of the present invention.

Figure 2 is a schematic diagram of the structure of the water tank.

Figure 3 is a left side view of the water tank.

Figure 4 is a schematic diagram of the structure of the separator.

In the picture: 1- Kang body, 2- Hot water storage tank, 3- Wall body, 4- Thermometer and sensor, 5- Partition plate, 6- Water hole, 7- Heat source water inlet pipe, 8- Heat source return water pipe, 9 - Heating water supply pipe, 10- heating return pipe, 11- column.

Detailed ways

The utility model will be further described below with reference to the accompanying drawings and embodiments.

Example 1

Referring to FIG. 1 , a hot water stratified thermal storage type energy-saving kang is constructed by relying on the wall 3 in the kang body 1, and the hot water storage tank 2 is arranged in the kang body. The bottom of the kang body 1 is provided with a column 11 for supporting the kang body, so that the kang body forms a hanging kang structure, which avoids the ineffective heat loss caused by the contact between the kang body and the ground. The efficiency of hot water utilization also saves the storage space of the hot water storage tank.

1-2 , two partitions 5 are horizontally arranged in the hot water storage tank 2 to divide the hot water storage tank into upper, middle and lower three-layer interconnected spaces; the partitions 5 There are evenly distributed water holes 6 (see FIG. 4 ); the upper side of the hot water storage tank 2 is provided with a heat source water inlet pipe 7 to connect with the water supply end of the heat source; the lower layer of the hot water storage tank passes through the heat source. The return pipe 8 is connected to the return end of the heat source. The hot water prepared by the heat source equipment is fed into the upper layer of the hot water storage tank 2 through the heat source water inlet pipe 7 , and the hot water in the lower layer of the hot water storage tank 2 flows back to the heat source equipment through the heat source return pipe 8 . After heating for a period of time, the heat loss density of the upper layer of hot water in the hot water storage tank 2 will increase and then natural stratification will occur, so that the upper, middle and lower layers of the hot water storage tank 2 are stored in layers. The lower temperature water is pumped out by the circulating water pump, returned to the heat source equipment through the heat source return pipe 8 and reheated, and then enters the upper layer of the hot water storage tank 2 again through the heat source water inlet pipe 7 for heating.

Wherein, the heat source equipment is a solar water heater, a biofuel boiler or an air source heat pump.

Preferably, the kang body is made of high-hardness stone slabs of granite and marble. The kang surface of the kang body is also provided with a cotton mattress-like thermal insulation material (omitted in the figure), and the thickness is 30-50 mm. A thermally conductive material is filled in the space between the top of the hot water storage tank and the bottom surface of the kang body, and between the side wall of the water tank and the side wall of the kang body. The heat-conducting material is cobblestone or crushed stone, so as to increase the heat transfer efficiency of the water body in the water tank to the kang surface.

Example 2

Referring to FIG. 3 , on the basis of Embodiment 1, it also includes a heating water supply pipe 9 provided on the other side wall of the upper layer of the hot water storage tank and a heating water return pipe 10 provided on the side wall of the middle layer; the hot water storage tank 2 The hot water in the upper layer can be supplied to the heating equipment in other rooms through the heating water supply pipe 9 , and the heated hot water will flow back to the middle layer of the hot water storage tank 2 through the heating return pipe 10 .

Working process: The hot water generated by the heat source equipment enters from the upper layer of the water tank 2 through the heat source water inlet pipe 7, and then fills the entire water tank 2 through the water holes on the partition 5 in the water tank 2. After the heating is started, the hot water in the upper layer of the water tank 2 provides heat for the kang surface, so that the kang surface reaches a suitable temperature for people to rest. The hot water in the upper layer of the water tank 2 can also enter the heating equipment in other rooms through the heating water supply pipe 9, and then flow back to the middle layer of the water tank 2 through the heating water return pipe 10. After heating for a period of time, the density of the upper layer of hot water in the water tank 2 will increase after heat loss, and then natural stratification will occur, so that the upper, middle and lower layers of the water tank are stored in layers, and the lower temperature water is circulated through the circulation. The water pump is pumped out and returned to the heat source equipment through the heat source return pipe 8 to be reheated, and then enters the upper layer of the water tank 3 again through the heat source water inlet pipe 7 for heating.

Specific experiment: implemented in a base in Huining County, Baiyin City, Gansu Province. Under the heating condition in winter, the indoor design temperature is 18°C; the calculated outdoor air temperature is -10.7°C, and the average outdoor wind speed is 0.7m/s. The master bedroom with energy-saving kang and the side and guest bedrooms without energy-saving kang. The heating load of each room is composed of the heat consumption of each envelope structure and the heat consumption of infiltrated air.

经过设计，水箱的体积为4.2m×2.2m×0.3m,炕的尺寸为4.5m×2.5m×0.57m，立柱高0.1m。The master bedroom with energy-saving kang is 6.5m deep, 4.5m deep, 2.9m high, two external windows 1.8×1.8m, one external door 2.2×1.9m, and the length of the gap between the external doors and windows is 22.6m; the side without energy-saving kang The sleeping bay is 3.5m, the depth is 4.5m, the height is 2.9m, the exterior window is 1.8×1.8m, the exterior door is 2.2×0.95m, and the length of the gap between the exterior doors and windows is 13.5m; the guest bedroom bay without energy-saving kang is 4.5m and the depth is 2.5m. m, the height is 2.9m, the outer window is 1.8×1.8m, the outer door is 2.2×0.95m, and the length of the outer door and window gap is 13.5m. After calculation, the total heating load of the master bedroom, side bedroom and guest bedroom of the building is: 6520.424W. The supply and return water temperatures are 60°C and 40°C respectively, that is, Δt=20°C. The temperature of the top surface of the kang is 40°C, the temperature of the bottom surface of the kang is 20°C, and the temperatures of the three layers of the side of the kang are 40°C, 30°C, and 20°C, respectively. If the energy-saving kang heating time is 9 hours a day, the total heat load that the hot water storage heat in the water tank needs to bear includes the room load and the load required by the kang, then the total heat load is Q=2.29×10 ⁵ KJ, after calculation The volume of the tank is obtained as

After design, the volume of the water tank is 4.2m×2.2m×0.3m, the size of the kang is 4.5m×2.5m×0.57m, and the height of the column is 0.1m.

The utility model uses hot water for heating, which replaces the high-temperature flue gas generated by the combustion of the traditional kang, avoids the situation that the flue gas leaks and pollutes the indoor environment due to the poor sealing performance of the kang body, and also avoids the electric heating kang that is easy to leak and cause safety. The danger of accidents, more environmentally friendly and safer. The hot water stratified water storage tank adopts a hanging kang structure, which avoids the ineffective heat loss caused by the contact between the kang body and the ground. Box storage space.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the technical solutions. Those skilled in the art should understand that those modifications or equivalent replacements to the technical solutions of the present invention do not depart from the technical solutions of the present invention. The purpose and scope of the technical solution should be included in the scope of the claims of the present invention.

Claims (8)

1. A hot water layered heat storage type energy-saving kang comprises a kang body; it is characterized in that a heat storage water tank is arranged in the kang body; two clapboards are horizontally arranged in the heat storage water tank to divide the heat storage water tank into an upper layer space, a middle layer space and a lower layer space which are communicated with each other; the clapboard is provided with evenly distributed limber holes; a heat source water inlet pipe arranged on the upper layer side wall of the heat storage water tank and a heat source water return pipe arranged on the lower layer side wall of the heat storage water tank; hot water prepared by the heat source equipment is sent to the upper layer of the heat storage water tank through the heat source water inlet pipe, and hot water in the lower layer of the heat storage water tank flows back to the heat source equipment through the heat source water return pipe.

2. The hot water layered heat accumulating type energy-saving kang according to claim 1, wherein the heat accumulating water tank, a circulating water pump, a heat source device and a room heating device form a hot water heating system through a hot water pipeline; a heating water supply pipe arranged on the other side wall of the upper layer of the heat storage water tank and a heating water return pipe arranged on the side wall of the middle layer; the hot water on the upper layer of the heat storage water tank can provide heating hot water for heating equipment in other rooms through a heating water supply pipe, and the heated hot water flows back to the heat storage water tank through a heating water return pipe.

3. The hot water layered heat accumulating type energy-saving kang of claim 1, wherein the bottom of the kang body is provided with a column for supporting the kang body, so that the kang body forms a suspended kang structure.

4. The hot-water layered heat accumulating type energy-saving kang according to claim 1, wherein the heat source equipment is a solar water heater, a biofuel boiler or an air source heat pump.

5. The layered heat accumulating type energy-saving kang of claim 1, wherein the kang body is made of granite, marble stone slab with high hardness.

6. The hot water layered heat accumulating type energy-saving kang according to claim 1, wherein an insulating layer is further arranged on the kang surface of the kang body, and the thickness of the insulating layer is 30-50 mm.

7. The hot-water layered heat storage type energy-saving kang of claim 1, wherein gaps between the top of the heat storage water tank and the bottom surface of the kang body and gaps between the side walls of the water tank and the side walls of the kang body are filled with heat conductive materials.

8. The hot-water layered heat accumulating type energy-saving kang of claim 7, wherein the heat conducting material is cobblestones or broken stones to increase the heat transfer efficiency from the water body in the water tank to the kang surface.

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