Household full anti-freezing solution straight-through type solar heating and hot water supply system

Abstract

A household full anti-freezing solution straight-through type solar heating and hot water supplying system comprises a solar heat collecting mechanism, a radiation floor energy storage tail end, a domestic hot water tank and a circulating power mechanism, and the radiation floor energy storage tail end and the domestic hot water tank are both connected with the solar heat collecting mechanism in parallel through the circulating power mechanism. Through reasonable arrangement of component structures, an indoor heating circulation loop and a domestic hot water circulation loop are formed, so that solar heat collection quantity is transmitted to an indoor radiation floor energy storage tail end and a domestic hot water tank; the system has the advantages of being simple, convenient to operate and control, low in cost, flexible in heat supply, free of frost crack of the heat collector and the connecting pipeline, capable of meeting the heat supply requirement without sunlight for a short time and the like, is suitable for winter heat supply in northwest rural areas of China, effectively solves the problem of winter heat supply in the northwest rural areas of China, improves the indoor heat environment of the rural areas, saves energy consumption, and is suitable for popularization and application. The safety and the reliability are improved, and the payback period is short.

Description

Technical Field

[0001] The utility model belongs to the technical field of solar heating, and in particular relates to a household full antifreeze liquid direct-through solar heating and hot water supply system. Background Art

[0002] The heating demand in rural areas of northwest my country is large, and solar energy resources are relatively abundant. Solar heating systems use renewable solar energy for heating, which has the advantages of energy saving and environmental protection. At present, the use of solar energy in rural areas is mostly for hot water supply by solar water heaters, and the application of solar heating systems is limited. In addition, the existing commonly used solar heating systems are mostly regional solar heating systems. The structure and control of household solar heating systems are relatively complex, with high investment and long payback period, which is difficult to apply to rural household heating. Summary of the invention

[0003] In view of the above problems, the purpose of the utility model is to provide a household full antifreeze liquid direct solar heating and hot water supply system to solve the winter heating problem for residents in rural areas of my country.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model includes:

[0005] A household all-antifreeze direct-flow solar heating and hot water supply system comprises a solar heat collecting mechanism, a radiation floor energy storage terminal, a domestic hot water tank and a circulation power mechanism. The radiation floor energy storage terminal and the domestic hot water tank are connected in parallel with the solar heat collecting mechanism through the circulation power mechanism.

[0006] Preferably, the inlet and outlet of the radiant floor energy storage terminal are respectively provided with a first regulating valve and a second regulating valve, and the inlet and outlet of the domestic hot water tank are respectively provided with a third regulating valve and a fourth regulating valve.

[0007] Preferably, a first temperature sensor and a second temperature sensor are respectively provided at the outlet and the inlet of the solar heat collection mechanism, and a third temperature sensor is provided in the domestic hot water tank.

[0008] Preferably, a pressure sensor is also provided at the outlet of the solar heat collection mechanism.

[0009] Preferably, the domestic hot water tank is externally connected to an auxiliary electric heating mechanism.

[0010] Preferably, the circulation power mechanism comprises an expansion tank and a circulation pump connected in series.

[0011] Preferably, the circulation power mechanism also includes a display unit connected to the first temperature sensor, the second temperature sensor, the third temperature sensor and the pressure sensor, and also includes a switch unit connected to the first regulating valve, the second regulating valve, the third regulating valve, the fourth regulating valve, the circulation pump and the auxiliary electric heating mechanism.

[0012] Preferably, it also includes a control unit, which is connected to each sensor, and the control unit is connected to each regulating valve, circulating pump and auxiliary electric heating mechanism.

[0013] Preferably, the radiant floor energy storage terminal includes, from top to bottom, a ground decoration layer, a dry hard cement mortar, a pebble heat storage layer, a cast-in-place concrete layer, a wire mesh, a protective layer, an insulating layer and a moisture-proof layer. A plurality of floor heating pipes are arranged in the cast-in-place concrete layer, and the floor heating pipes are connected to the inlet and outlet of the radiant floor energy storage terminal.

[0014] Preferably, the pebble heat storage layer is divided into a uniform array distribution by steel plates in the horizontal direction.

[0015] Compared with the prior art, the advantages of the utility model are:

[0016] (1) The utility model discloses a household all-antifreeze direct-flow solar heating and hot water supply system. Through the reasonable arrangement of the component structure, the heat collecting medium heated by the solar thermal collection system is powered by a circulation power mechanism and directly enters the radiation floor energy storage terminal and the domestic hot water tank for heating, and then circulates back to the solar thermal collection system to form an indoor heating circulation loop and a domestic hot water circulation loop, thereby transferring the solar energy collected heat to the indoor radiation floor energy storage terminal and the domestic hot water tank. The system has the characteristics of simple system, convenient operation and control, low cost, flexible heating, the collector and the connecting pipes will not freeze and crack, and the heating demand can be met even in the short-term absence of sunshine. It is particularly suitable for the heating needs of rural residents in northwest my country in winter.

[0017] (2) The utility model is a household all-antifreeze direct-flow solar heating and hot water supply system. Through the reasonable arrangement of component structures, it is suitable for winter heating in rural areas of northwest my country. It effectively solves the problem of winter heating in rural areas of northwest my country, improves the indoor thermal environment in rural areas, saves energy consumption, improves safety and reliability, and has a short investment payback period.

[0018] (3) The utility model is a household full antifreeze direct-flow solar heating and hot water supply system. Through the reasonable arrangement of the component structure, manual control and automatic control can be selected according to the situation. The system control is flexible and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the system structure implementation of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure implementation of the radiant floor heat storage terminal of the utility model;

[0022] Figure 3 It is a schematic diagram of a domestic hot water tank of the utility model;

[0023] Figure 4 It is a schematic diagram of the circulation power mechanism of the utility model;

[0024] Figure 5 This is a schematic diagram of the system parameter monitoring and control process of the utility model;

[0025] Figure 6 This is the control logic flow chart of the utility model system;

[0026] The symbols in the figure represent:

[0027] 1 Solar thermal collection mechanism, 2 Radiant floor energy storage terminal, 3 Domestic hot water tank, 4 Circulation power mechanism;

[0028] 201 floor decoration layer, 202 dry hard cement mortar, 203 pebble heat storage layer, 204 cast-in-place concrete layer, 205 steel wire mesh, 206 protective layer, 207 insulation layer, 208 moisture-proof layer, 209 floor heating pipe;

[0029] 301 pressure water tank, 302 auxiliary electric heating mechanism, 303 heat exchange coil;

[0030] 401 display unit, 402 switch unit, 403 circulation pump, 404 expansion tank;

[0031] 501 is a first regulating valve, 502 is a second regulating valve, 503 is a third regulating valve, 504 is a fourth regulating valve;

[0032] 601 is a first temperature sensor, 603 is a second temperature sensor, 604 is a third temperature sensor, and 602 is a pressure sensor. DETAILED DESCRIPTION

[0033] The utility model is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the utility model. All components and devices in the utility model, unless otherwise specified, are all components and devices known in the prior art.

[0034] A household all-antifreeze direct-flow solar heating and hot water supply system, comprising a solar heat collection mechanism 1, a radiation floor energy storage terminal 2, a domestic hot water tank 3 and a circulation power mechanism 4, wherein the radiation floor energy storage terminal 2 and the domestic hot water tank 3 are both connected in parallel with the solar heat collection mechanism 1 through the circulation power mechanism 4;

[0035] Its function is: the heat collecting medium heated by the solar thermal collection system 1 is powered by the circulation power mechanism 4 and directly enters the radiation floor energy storage terminal 2 and the domestic hot water tank 3 for heating, and then circulates back to the solar thermal collection system 1 to form an indoor heating circulation loop and a domestic hot water circulation loop, thereby transferring the solar energy collection heat to the indoor radiation floor energy storage terminal 2 and the domestic hot water tank 3. The system has the characteristics of simple system, convenient operation and control, low cost, flexible heating, the collector and connecting pipes will not freeze and crack, and the heating demand can be met even without sunshine for a short period of time. It is especially suitable for the heating needs of rural residents in northwest my country in winter.

[0036] The solar heat collection mechanism 1 is connected to the radiation floor energy storage terminal 2 and the domestic hot water tank 3 via a connecting pipe 7 .

[0037] The radiation floor energy storage terminal 2 disclosed in this embodiment includes, from top to bottom, a ground decoration layer 201, a dry hard cement mortar 202, a pebble heat storage layer 203, a cast-in-place concrete layer 204, a wire mesh 205, a protective layer 206, an insulating layer 207 and a moisture-proof layer 208. A plurality of floor heating pipes 209 are arranged in the cast-in-place concrete layer 204 and are connected to the inlet and outlet of the radiation floor energy storage terminal 2. Pebbles are used as heat storage bodies to store the collected heat of the solar thermal collection system. The pebble heat storage layer 203 is divided into a uniform array distribution by steel plates in the horizontal direction, which helps to improve the uniformity of temperature distribution and enhance the stability of the ground structure.

[0038] Specifically, the inlet and outlet of the radiant floor energy storage terminal 2 are respectively provided with a first regulating valve 501 and a second regulating valve 502, and the inlet and outlet of the domestic hot water tank 3 are respectively provided with a third regulating valve 503 and a fourth regulating valve 504; the outlet and inlet of the solar energy collection mechanism 1 are respectively provided with a first temperature sensor 601 and a second temperature sensor 603, and the domestic hot water tank 3 is provided with a third temperature sensor 604; the outlet of the solar energy collection mechanism 1 is also provided with a pressure sensor 602.

[0039] The domestic hot water tank 3 disclosed in the present application adopts a pressure water tank 301, in which a heat exchange coil 303 is arranged. The heat collecting medium heats the hot water in the water tank through the heat exchange coil 303. The domestic hot water tank 3 is externally connected to an auxiliary electric heating mechanism 302. When the water tank temperature is lower than 40°C, the auxiliary electric heating device 302 is turned on to supplement heat; the water tank is directly connected to tap water, and the tap water pressure is used to maintain the constant pressure state of the water tank and provide the pressure required for hot water supply. When the hot water user takes hot water, the internal pressure of the water tank is reduced, and the tap water automatically replenishes the water tank.

[0040] The circulating power mechanism 4 disclosed in the present application includes an expansion tank 404 and a circulating pump 403 connected in series, and also includes a display unit 401 connected to each sensor to display the data of each sensor; and also includes a switch unit 402 connected to each regulating valve, the circulating pump 403 and the auxiliary electric heating mechanism 302. It also includes a control unit 8, which is used to obtain the data of each sensor and control the switch unit 402 to open and close each regulating valve, the circulating pump 403 and the auxiliary electric heating mechanism 302.

[0041] Among them, each sensor includes a first temperature sensor, a second temperature sensor, a third temperature sensor and a pressure sensor, and each regulating valve includes a first regulating valve, a second regulating valve, a third regulating valve and a fourth regulating valve.

[0042] like Figure 6 As shown, the household full antifreeze direct solar heating and hot water supply system disclosed in this application has two built-in control modes: manual control and automatic control. When manual control is selected, the start and stop of each device can be controlled manually through the control button; when the automatic control mode is selected, the system automatically starts and stops the circulation pump 403 and controls the temperature of the domestic hot water tank 3 according to the control parameters. The start and stop control of the circulation pump 403 adopts temperature difference control, and the start temperature difference is set to 5°C and the shut-down temperature difference is set to 2°C; the temperature control of the domestic hot water tank 3 adopts fixed temperature control. When the water tank temperature is lower than 40°C, the auxiliary electric heating mechanism 302 is turned on to supplement the water tank heat.

[0043] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0044] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0045] In addition, the various different implementation modes disclosed in this solution may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the content invented by the present disclosure.

Claims

1. A household full antifreeze direct solar heating and hot water supply system, characterized in that: It comprises a solar heat collection mechanism (1), a radiation floor energy storage terminal (2), a domestic hot water tank (3) and a circulation power mechanism (4), wherein the radiation floor energy storage terminal (2) and the domestic hot water tank (3) are connected in parallel with the solar heat collection mechanism (1) via the circulation power mechanism (4); The inlet and outlet of the radiant floor energy storage terminal (2) are respectively provided with a first regulating valve (501) and a second regulating valve (502), and the inlet and outlet of the domestic hot water tank (3) are respectively provided with a third regulating valve (503) and a fourth regulating valve (504); The outlet and the inlet of the solar heat collection mechanism (1) are respectively provided with a first temperature sensor (601) and a second temperature sensor (603), and the domestic hot water tank (3) is provided with a third temperature sensor (604); The outlet of the solar heat collection mechanism (1) is also provided with a pressure sensor (602); The domestic hot water tank (3) is externally connected to an auxiliary electric heating mechanism (302); The radiant floor energy storage terminal (2) comprises, from top to bottom, a floor decoration layer (201), dry hard cement mortar (202), a pebble heat storage layer (203), a cast-in-place concrete layer (204), a wire mesh (205), a protective layer (206), an insulating layer (207) and a moisture-proof layer (208); a plurality of floor heating pipes (209) are arranged in the cast-in-place concrete layer (204); and the floor heating pipes (209) are connected to the inlet and outlet of the radiant floor energy storage terminal (2).

2. The household full antifreeze liquid direct-flow solar heating and hot water supply system according to claim 1, characterized in that: The circulating power mechanism (4) comprises an expansion tank (404) and a circulating pump (403) connected in series.

3. The household full antifreeze liquid direct-flow solar heating and hot water supply system as claimed in claim 2, characterized in that: The circulation power mechanism (4) further comprises a display unit (401) connected to the first temperature sensor (601), the second temperature sensor (603), the third temperature sensor (604) and the pressure sensor (602), and further comprises a switch unit (402) connected to the first regulating valve (501), the second regulating valve (502), the third regulating valve (503), the fourth regulating valve (504), the circulation pump (403) and the auxiliary electric heating mechanism (302).

4. The household full antifreeze liquid direct-flow solar heating and hot water supply system as claimed in claim 3, characterized in that: It also includes a control unit (8), wherein the control unit (8) is connected to each sensor, and the control unit (8) is connected to each regulating valve, a circulation pump (403) and an auxiliary electric heating mechanism (302).

5. The household full antifreeze direct-flow solar heating and hot water supply system according to claim 4, characterized in that: The pebble heat storage layer (203) is divided into a uniform array distribution by steel plates in the horizontal direction.

Images