Civil energy-saving building heating system suitable for northwest region

Abstract

The utility model provides a civil energy-saving building heating system suitable for northwest districts, which relates to the technical field of building heating and comprises a heat storage water tank, a phase change heat storage heatable brick bed, a solar cell panel, a temperature control module and a cooking range, the heat storage water tank is in pipeline connection with the phase change heat storage heatable brick bed, and the heat storage water tank is electrically connected with the temperature control module. The temperature control module is electrically connected with the solar cell panel, the upper portion and the lower portion of the heat storage water tank are each provided with three upper water outlet ends and three lower water return ends, the lower water return ends communicate with circulating water pumps, and the circulating water pumps communicate with the water collector through pipelines. The solar heat collector and stove smoke waste heat are complementary with the solar cell panel to serve as a heat source of the phase change heat storage kang, solar energy resources serve as main energy to heat a room, power consumption can be effectively reduced, the use experience of a user is improved, and the problem that electricity consumption of residents is increased due to an electric appliance heating mode is solved. In order to save electricity, residents will idle electric appliances, and the heating experience in winter is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of building heating, in particular to a civil energy-saving building heating system applicable to the northwest region. Background Art

[0002] In regions with limited economic development levels such as the northwest, most rural residential buildings and other buildings still use earthen kang heated by fire as the main heating method. This heating method has low energy utilization efficiency, serious environmental pollution, and poor heating effect, making it difficult to meet people's requirements for room thermal comfort, and also severely restricting the achievement of energy conservation, emission reduction, and the "dual carbon" goal.

[0003] Using other heating methods such as electric heating in buildings will increase the electricity consumption of residents, and the cost of building heating will be higher compared to the cost of earthen kang heated by fire. As a result, in order to save electricity, residents will idle the electrical appliances and only use them at night or in colder weather, resulting in a poor winter heating experience. Moreover, the northwest region has a large amount of abundant sunlight resources. By utilizing the sunlight resources during the day, the electricity consumption of residents can be effectively reduced, and the winter heating experience of buildings can be improved. Summary of the Invention

[0004] The civil energy-saving building heating system applicable to the northwest region in the embodiments of the present disclosure uses a solar collector to utilize sufficient sunlight to heat and store heat in a hot water storage tank for indoor heating, directly performing solar heating. At the same time, the excess heat is used to heat a phase change capsule through a hot kang heating pipe. The heat storage material of the phase change capsule absorbs latent heat and melts, and the heat is stored in the heat storage material of the phase change capsule. At night, the heat storage material changes from a liquid state to a solid state, releasing heat during the solidification process to keep the temperature of the kang surface at 27°C and stable. At the same time, the excess heat of the heat storage material can also provide heating for the room, providing heating during the night sleep stage to achieve the purpose of uniform heating. Using the solar collector, the waste heat of the stove flue gas, and the solar panel as complementary heat sources for the phase change heat storage kang, and using solar energy resources as the main energy source to heat the room can effectively reduce power consumption and improve the user experience.

[0005] In the first aspect of the present disclosure, a civil energy-saving building heating system applicable to the northwest region is provided, which specifically includes: a hot water storage tank, a phase change heat storage kang, a solar panel, a temperature control module, and a stove. The hot water storage tank is connected to the phase change heat storage kang through pipelines, the hot water storage tank is electrically connected to the temperature control module, the temperature control module is electrically connected to the solar panel. Three upper water outlets and three lower water inlets are provided at the upper and lower parts of the hot water storage tank respectively. A circulating water pump is connected to each of the lower water inlets, and the circulating water pump is connected to a water collector through pipelines. The water collector is respectively connected to an indoor heating pipe and a hot kang heating pipe, and the ends of the indoor heating pipe and the hot kang heating pipe are connected to a water distributor.

[0006] In at least some embodiments, the water separator is connected to the valve and the electronic flowmeter through a pipeline and finally connected to the upper water outlet end. The upper water outlet end and the lower water return end of the hot water storage tank are respectively connected to both ends of the solar collector. The solar panel and the solar collector are arranged on the roof or in a shaded-free position.

[0007] In at least some embodiments, a phase change heat storage kang is fixedly provided with phase change capsules and an upper temperature equalizing plate at the top. The upper temperature equalizing plate is fixed on the top of the phase change capsules. The inside of the phase change capsules is a composite phase change material made of 97% paraffin No. 30 and 3% expanded graphite as the matrix. When heating the phase change material of the phase change capsules, the paraffin absorbs heat and melts. After all the paraffin has melted, the high-temperature water continues to heat the phase change capsules of the phase change heat storage kang, and the paraffin begins to store latent heat, and the heat is stored in the heat storage material of the phase change capsules.

[0008] In at least some embodiments, the hot kang heating pipes are arranged in a serpentine shape on the top of the phase change heat storage kang. The diameter of the hot kang heating pipes is 25 mm, and the pipe spacing of the hot kang heating pipes is 80 mm. The phase change capsules are located at the intervals of the hot kang heating pipes. The bottom of the upper temperature equalizing plate is in contact with the hot kang heating pipes. The excess heat of the hot water storage tank is controlled by a circulating pump to make the water flow to the hot kang heating pipes to heat the phase change capsules, and the heat storage material of the phase change capsules absorbs latent heat and melts.

[0009] In at least some embodiments, the solar panel is electrically connected to a storage battery, and the storage battery is electrically connected to a temperature control module. The storage battery supplies power to the heating pipe of the hot water storage tank.

[0010] In at least some embodiments, the temperature control module is electrically connected to a ventilator. The temperature control module is provided with a temperature sensor. The ventilator is used to connect the indoor and outdoor ventilation ducts of the building. The ventilator optimizes the indoor air quality and controls the indoor temperature. The temperature control module is electrically connected to the heating pipe and the high-temperature sensor of the hot water storage tank. The temperature control module is electrically connected to the circulating pump and the electronic flowmeter. The temperature control module performs intelligent control on the indoor temperature.

[0011] In at least some embodiments, the smoke outlet of the stove is connected to a flue gas waste heat recovery heat exchanger. The upper end of the flue gas waste heat recovery heat exchanger is connected to a smoke pipe. The tail end of the smoke pipe is provided with a filter screen composed of a layer of fiber material and a layer of activated carbon and is provided with a smoke exhaust fan to filter and purify the smoke exhaust. The two ends of the flue gas waste heat recovery heat exchanger are respectively connected to the upper water outlet end and the lower water return end.

[0012] The civil energy-saving building heating system applicable to the northwest region provided by the present utility model has the following beneficial effects:

[0013] The sufficient sunlight is utilized by a solar collector to heat and store heat in a hot water storage tank for indoor heating, directly providing solar heating. Meanwhile, the excess heat is used to heat a phase change capsule through a hot kang heating pipe. The heat storage material of the phase change capsule absorbs latent heat and melts, and the heat is stored in the heat storage material of the phase change capsule. At night, the heat storage material changes from a liquid state to a solid state, releasing heat during the solidification process to maintain the temperature of the kang surface at 27°C and keep it stable. Meanwhile, the excess heat of the heat storage material can also provide heating for the indoor area during the night sleep stage, achieving the purpose of uniform heating. Using the solar collector, the waste heat of the stove flue gas, and the solar panel as complementary heat sources for the phase change heat storage kang, and using solar energy resources as the main energy source to heat the room can effectively reduce the consumption of traditional energy sources.

[0014] During the day, the solar panel utilizes solar energy for power generation and stores it in the storage battery. The storage battery supplies power to the heating pipe of the hot water storage tank at night to heat it, balancing the heating demand at night and further reducing additional power consumption, making full use of the sufficient sunlight resources. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0016] The drawings in the following description only relate to some embodiments of the present utility model and do not limit the present utility model.

[0017] In the drawings:

[0018] Figure 1 A schematic diagram of the structure of the hot water storage tank of the present application is shown;

[0019] Figure 2 A schematic diagram of the structure of the solar panel of the present application is shown;

[0020] Figure 3 A schematic diagram of the cross-sectional structure of the upper temperature equalizing plate of the present application is shown;

[0021] Figure 4 A schematic diagram of the structure of the indoor heating pipe of the present application is shown;

[0022] Figure 5 A schematic diagram of the cross-sectional structure of the flue gas waste heat recovery heat exchanger of the present application is shown;

[0023] Figure 6 A schematic diagram of the structure of the simulated use state of the housing building of the present application is shown;

[0024] List of Reference Numerals

[0025] 1. Hot water storage tank; 101. Lower return water end; 102. Circulation water pump; 103. Header; 104. Indoor heating pipe; 105. Heatable kang heating pipe; 106. Flow divider; 107. Electronic flowmeter; 108. Upper water outlet end; 109. Solar collector;

[0026] 2. Phase change heat storage heatable kang; 201. Phase change capsule; 202. Upper temperature equalizing plate;

[0027] 3. Solar panel; 301. Storage battery;

[0028] 4. Temperature control module; 401. Ventilator;

[0029] 5. Stove; 501. Flue gas waste heat recovery heat exchanger; 502. Smoke outlet pipe. Specific implementation mode

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0031] Embodiment 1: Please refer to Figures 1 to 6 :

[0032] The utility model provides a civil energy-saving building heating system applicable to the northwest region, which includes: a hot water storage tank 1, a phase change heat storage kang 2, a solar panel 3, a temperature control module 4, and a stove 5. Three upper water outlets 108 and three lower water inlets 101 are provided at the upper and lower parts of the hot water storage tank 1 respectively. A circulation pump 102 is connected to each of the lower water inlets 101. The circulation pump 102 is connected to a water collector 103 through a pipeline. The water collector 103 is respectively connected to an indoor heating pipe 104 and a kang heating pipe 105. The ends of the indoor heating pipe 104 and the kang heating pipe 105 are connected to a water distributor 106. The water distributor 106 is connected to a valve and an electronic flowmeter 107 through a pipeline and finally connected to the upper water outlet 108. The upper water outlet 108 and the lower water inlet 101 of the hot water storage tank 1 are respectively connected to both ends of a solar collector 109. The solar panel 3 and the solar collector 109 are arranged on the roof or in a shaded-free position. The hot water storage tank 1 is connected to the phase change heat storage kang 2 through a pipeline. A phase change capsule 201 and an upper temperature equalizing plate 202 are fixedly arranged on the top of the phase change heat storage kang 2. The upper temperature equalizing plate 202 is fixed on the top of the phase change capsule 201. The inside of the phase change capsule 201 is a composite phase change material made of 97% paraffin No. 30 and 3% expanded graphite as the matrix. When heating the phase change material in the phase change capsule 201, the paraffin absorbs heat and melts. After all the paraffin melts, the high-temperature water continues to heat the phase change capsule 201 of the phase change heat storage kang 2, and the paraffin begins to store latent heat. The heat is stored in the heat storage material of the phase change capsule 201. At night, as the temperature gradually decreases, the heat storage material of the phase change capsule 201 changes from liquid to solid and releases heat. The hot water storage tank 1 is electrically connected to the temperature control module 4. The temperature control module 4 is electrically connected to the solar panel 3. The solar panel 3 is electrically connected to a storage battery 301. The storage battery 301 is electrically connected to the temperature control module 4. The temperature control module 4 is electrically connected to a ventilator 401. The temperature control module 4 is provided with a temperature sensor. The ventilator 401 is used to connect the indoor and outdoor ventilation ducts of the building. The ventilator 401 optimizes the indoor air quality and controls the indoor temperature. When the indoor temperature is higher than 28 °C, ventilation and heat dissipation are automatically carried out to ensure the comfort of the indoor living environment. The temperature control module 4 is electrically connected to the heating pipe and the temperature sensor of the hot water storage tank 1. The temperature control module 4 is electrically connected to the circulation pump 102 and the electronic flowmeter 107. The temperature control module 4 intelligently controls the indoor temperature. The storage battery 301 supplies power to the heating pipe of the hot water storage tank 1, making full use of the abundant sunlight resources and further reducing the consumption of commercial power.

[0033] In the embodiments of the present disclosure, the hot kang heating pipe 105 is arranged in a serpentine shape on the top of the phase change heat storage kang 2. The diameter of the hot kang heating pipe 105 is 25 mm, and the pipe spacing of the hot kang heating pipe 105 is 80 mm. The phase change capsules 201 are located at the intervals of the hot kang heating pipe 105. The bottom of the upper temperature equalizing plate 202 is in contact with the hot kang heating pipe 105. The excess heat of the hot water storage tank 1 is controlled by the circulating water pump 102 to make the water flow to the hot kang heating pipe 105 to heat the phase change capsules 201. The heat storage material of the phase change capsules 201 absorbs latent heat and melts, heating the phase change material. The paraffin absorbs heat and melts. After all the paraffin has melted, the high-temperature water continues to heat the phase change capsules 201 of the phase change heat storage kang 2, and the paraffin begins to store latent heat. The heat is stored in the heat storage material of the phase change capsules 201. At night, the temperature of the phase change heat storage kang 2 gradually decreases, and the heat storage material of the phase change capsules 201 changes from a liquid state to a solid state, releasing heat during the solidification process to keep the temperature of the kang surface at 27°C.

[0034] In the embodiments of the present disclosure, the smoke outlet of the stove 5 is connected to a flue gas waste heat recovery heat exchanger 501. The upper end of the flue gas waste heat recovery heat exchanger 501 is connected to the smoke outlet pipe 502. A filter screen composed of a layer of fiber material and a layer of activated carbon is provided at the tail end of the smoke outlet pipe 502, and a smoke exhaust fan is provided to filter and purify the smoke exhaust, realizing the up-to-standard emission of rural residential cooking smoke. The two ends of the flue gas waste heat recovery heat exchanger 501 are respectively connected to the upper water outlet end 108 and the lower water return end 101, recovering the waste heat of the stove 5 flue gas and purifying the flue gas, which can effectively reduce the consumption of traditional energy and reduce greenhouse gas emissions, meeting the concept of sustainable development.

[0035] In Embodiment 2, based on Embodiment 1, for some existing buildings in which the smoke outlet pipe 502 of the stove 5 is embedded in the wall, the flue gas waste heat recovery heat exchanger 501 can be not set, eliminating the need for wall-breaking renovation, reducing the renovation cost, and realizing the compatible renovation with the existing buildings.

[0036] Working principle of this embodiment: The solar collector 109 and the solar panel 3 are arranged on the roof or outdoors, and other components are arranged inside the building. The building walls, etc. are omitted in the illustration. The sun shines on the solar collector 109 to heat the water inside the solar collector 109. The hot water storage tank 1 controls the water flow through the solar collector 109 for the heating process by means of the circulation pump 102. The solar collector 109 uses sufficient sunlight to heat the water inside the hot water storage tank 1, store heat, and use it for indoor heating. The hot water storage tank 1 controls the water flow through the indoor heating pipe 104 by means of the circulation pump 102. The indoor heating pipe 104 can be connected to the floor heating pipe or the radiator to achieve indoor heating, directly perform solar heating, use hot water as the heat medium and the circulation pump 102 as the circulation power. The hot water is transported to the indoor heating pipe 104 and the hot kang heating pipe 105 through the water distributor 106 connected to the upper water outlet end 108 for heating up, and the cooled cold water is circulated back to the hot water storage tank 1 along the water collector 103 to the lower water return end 101. The excess heat of the hot water storage tank 1 controls the water flow through the circulation pump 102 to flow to the hot kang heating pipe 105 to heat the phase change capsule 201. The heat storage material of the phase change capsule 201 absorbs latent heat and melts, heating the phase change material. The paraffin absorbs heat and melts. After all the paraffin has melted, the high-temperature water continues to heat the phase change capsule 201 of the phase change heat storage kang 2, and the paraffin begins to store latent heat. The heat is stored in the heat storage material of the phase change capsule 201. At night, the temperature of the phase change heat storage kang 2 gradually decreases, and the heat storage material of the phase change capsule 201 changes from liquid to solid, releasing heat during the solidification process to keep the temperature of the kang surface at 27°C and stable. At the same time, the excess heat of the heat storage material heats the hot kang heating pipe 105, and the indoor heating pipe 104 connected to the hot water storage tank 1 provides heating for the room for the night sleep stage to achieve the purpose of uniform heating. In this way, the phase change heat storage material of the phase change capsule 201 repeats the endothermic-exothermic process. The flue gas temperature of the stove 5 is about 200°C, and there is more waste heat that can be recycled. Horizontally arranged inside the flue gas waste heat recovery heat exchanger 501 is a DN32 seamless steel pipe. The circulation pump 102 installed in the hot water storage tank 1 makes the cold water enter the pipe of the flue gas waste heat recovery heat exchanger 501 and uses the waste heat of the flue gas of the stove 5 to heat the water flow, and then flows back into the hot water storage tank 1 to form a cold and hot water cycle. Using the solar collector 109, the waste heat of the flue gas of the stove 5 and the solar panel 3 are complementary as the heat source of the phase change heat storage kang 2, using solar energy resources as the main energy source to heat the room, which can effectively reduce the consumption of traditional energy, be energy-saving and environmentally friendly, reduce greenhouse gas emissions, and conform to the concept of sustainable development;

[0037] The temperature sensors in the hot water storage tank 1 and the indoor temperature control module 4 detect the indoor temperature and the temperature of the heating water, convert the obtained current signal into a voltage signal, convert the voltage signal into a digital signal by an A / D converter, and the single-chip microcomputer of the indoor temperature control module 4 processes the received digital signal and determines whether electric heating assistance is required for temperature increase. At the same time, a ventilator 401 is equipped to optimize the indoor air quality and control the indoor temperature. When the indoor temperature is higher than 28 °C, ventilation and heat dissipation are automatically carried out to ensure the comfort of the indoor living environment. It can automatically adjust the operation time and temperature to ensure the best thermal comfort and energy efficiency; during the day, the solar panel 3 uses solar energy to generate electricity and stores it in the storage battery 301. At night, the storage battery 301 supplies power to the heating pipe of the hot water storage tank 1 to heat the internal water, balance the heating demand at night, further reduce the additional power consumption, make full use of the abundant sunlight resources, and further reduce the consumption of the commercial power.

[0038] In this article, the following points need to be noted:

[0039] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0040] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0041] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A civil energy-saving building heating system applicable to the northwest region, comprising: A hot water storage tank (1), a phase change heat storage kang (2), a solar panel (3), a temperature control module (4) and a stove (5); characterized in that the hot water storage tank (1) is connected to the phase change heat storage kang (2) through pipelines, the hot water storage tank (1) is electrically connected to the temperature control module (4), the temperature control module (4) is electrically connected to the solar panel (3), three upper water outlets (108) and three lower water return ends (101) are provided at both the upper and lower parts of the hot water storage tank (1), a circulation pump (102) is connected to each lower water return end (101) in a communicating way, the circulation pump (102) is connected to a water collector (103) through pipelines, the water collector (103) is respectively connected to an indoor heating pipe (104) and a kang heating pipe (105) in a communicating way, and the ends of the indoor heating pipe (104) and the kang heating pipe (105) are connected to a water distributor (106).

2. The civil energy-saving building heating system applicable to the northwest region according to claim 1, characterized in that the water distributor (106) is connected to a valve and an electronic flowmeter (107) through pipelines and finally connected to the upper water outlet (108), and the upper water outlet (108) and the lower water return end (101) of the hot water storage tank (1) are respectively connected to both ends of a solar collector (109).

3. The civil energy-saving building heating system applicable to the northwest region according to claim 2, characterized in that a phase change capsule (201) and an upper temperature equalizing plate (202) are fixedly arranged on the top of the phase change heat storage kang (2), and the upper temperature equalizing plate (202) is fixed on the top of the phase change capsule (201).

4. The civil energy-saving building heating system applicable to the northwest region according to claim 3, characterized in that the kang heating pipe (105) is arranged in a serpentine shape on the top of the phase change heat storage kang (2), the phase change capsule (201) is located at the interval of the kang heating pipe (105), and the bottom of the upper temperature equalizing plate (202) is in contact with the kang heating pipe (105).

5. The civil energy-saving building heating system applicable to the northwest region according to claim 1, characterized in that the solar panel (3) is electrically connected to a storage battery (301), and the storage battery (301) is electrically connected to the temperature control module (4).

6. The civil energy-saving building heating system applicable to the northwest region according to claim 2, characterized in that the temperature control module (4) is electrically connected to a ventilator (401), the temperature control module (4) is provided with a temperature sensor, and the temperature control module (4) is electrically connected to the circulation pump (102) and the electronic flowmeter (107).

7. The civil energy-saving building heating system applicable to the northwest region according to claim 2, characterized in that the smoke outlet of the stove (5) is connected to a flue gas waste heat recovery heat exchanger (501), the upper end of the flue gas waste heat recovery heat exchanger (501) is connected to a smoke outlet pipe (502), and both ends of the flue gas waste heat recovery heat exchanger (501) are respectively connected to the upper water outlet (108) and the lower water return end (101).

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