CN212132933U

CN212132933U - Solar energy system for reducing building carbon emission

Info

Publication number: CN212132933U
Application number: CN202020412352.9U
Authority: CN
Inventors: 董喜欣; 周玉辉; 王朝询; 郭新想; 朱小波; 夏益峰
Original assignee: Tus-Design Group Co ltd
Current assignee: Tus-Design Group Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-11
Anticipated expiration: 2030-03-27

Abstract

The application discloses reduce solar energy system that building carbon discharged includes: solar collector, first heat storage jar, second heat storage jar, first heat storage jar goes out oil pipe, and first heat storage jar advances oil pipe, and second heat storage jar goes out oil pipe, and second heat storage jar advances oil pipe, first heat storage jar heating pipe, first heat storage jar backheat pipe, second heat storage jar heating pipe, second heat storage jar backheat pipe, connect the valve on corresponding pipeline, connect the circulating pump on corresponding pipeline. The intermittent energy storage and continuous energy utilization device overcomes the intermittence and instability of solar energy by converting the solar energy into heat energy for storage, and realizes intermittent energy storage and continuous energy utilization.

Description

Solar energy system for reducing building carbon emission

Technical Field

The present application relates to a solar energy system for reducing building carbon emissions.

Background

Solar energy is a renewable energy source, and has the advantages of large quantity, harmlessness, economy, zero emission of greenhouse gases and the like, so that the solar energy has wide development and utilization values at present when energy reserves and environmental problems are increasingly tense. However, the inherent disadvantage of solar energy is also very obvious, the large-range application of solar energy is greatly limited by the characteristics of small solar energy flux density, intermittency and instability, and the solar energy technology can be mainly divided into photovoltaic and photo-thermal.

With the signing and implementation of paris agreements, the use of renewable energy sources can effectively reduce building carbon emissions based on the annual increase in the proportion of buildings in the carbon emissions as a whole.

At present, the solar energy utilization mode of buildings is basically photovoltaic and photothermal.

In the aspect of photo-thermal utilization of solar energy, the solar energy is converged by using a heat collector, the defects of intermittency and instability of the solar energy are overcome by using an energy storage technology, and the solar energy is applied to a solar heat storage power station, but is still in a development stage in the building industry at present.

The present application is hereby presented.

Disclosure of Invention

The purpose of the application is: the solar energy system for reducing the carbon emission of the building is provided, and the intermittent and unstable solar energy is overcome by converting the solar energy into the heat energy for storage, so that the intermittent energy storage and the continuous energy utilization are realized.

The technical scheme of the application is as follows:

a solar energy system for reducing carbon emissions from a building, comprising:

a solar heat collector is provided with a solar heat collector,

a first heat storage tank storing heat transfer oil therein,

a second heat storage tank storing heat transfer oil therein,

an oil outlet pipe of the first heat storage tank and an oil inlet pipe of the first heat storage tank are connected with the first heat storage tank and the solar heat collector,

an oil outlet pipe of the second heat storage tank and an oil inlet pipe of the second heat storage tank are connected with the second heat storage tank and the solar heat collector,

a first heat storage tank heat supply pipe and a first heat storage tank heat return pipe which are connected with the first heat storage tank and the heat using unit,

a second heat storage tank heat supply pipe and a second heat storage tank heat return pipe which are connected with the second heat storage tank and the heat using unit,

connect in first heat storage tank goes out oil pipe first heat storage tank advances oil pipe second heat storage tank goes out oil pipe second heat storage tank advances oil pipe first heat storage tank heating pipe second heat storage tank heating pipe with valve on the second heat storage tank heating pipe to and

and the circulating pump is connected to the oil outlet pipe of the first heat storage tank, the oil outlet pipe of the second heat storage tank, the heat supply pipe of the first heat storage tank and the heat supply pipe of the second heat storage tank.

On the basis of the technical scheme, the application also comprises the following preferable scheme:

the first heat storage tank oil outlet pipe and the second heat storage tank oil outlet pipe are provided with a first common pipe section connected with the solar heat collector, and a first circulating pump is connected to the first common pipe section.

The first heat storage tank heat supply pipe and the second heat storage tank heat supply pipe are provided with a second common pipe section connected with the solar heat collector, and a second circulating pump is connected to the second common pipe section.

The heat utilization unit comprises a domestic hot water module, an air conditioner module and a building envelope performance improving module, and the building envelope performance improving module comprises a heat sending coil pipe embedded in a building wall body.

And the second common pipe section is provided with three oil outlets which are respectively connected with the oil inlet of the domestic hot water module, the oil inlet of the air conditioner module and the oil inlet of the containment performance improving module.

The first heat storage tank heat return pipe and the second heat storage tank heat return pipe are provided with a third common pipe section connected with the heat unit, three oil return ports are formed in the third common pipe section, and the three oil return ports are respectively connected with the oil outlet of the domestic hot water module, the oil outlet of the air conditioner module and the oil outlet of the enclosure performance improving module.

Valves are arranged at the oil inlet and the oil outlet of the domestic hot water module, at the oil inlet and the oil outlet of the air conditioner module and at the oil inlet and the oil outlet of the containment performance improving module.

The first heat storage tank heat supply pipe is in be provided with the valve on the pipeline section of second public pipeline section upper reaches, second heat storage tank heat supply pipe is in be provided with the valve on the pipeline section of second public pipeline section upper reaches, first heat storage tank backheat pipe is in be provided with the valve on the pipeline section of third public pipeline section lower reaches, second heat storage tank backheat pipe is in be provided with the valve on the pipeline section of third public pipeline section lower reaches.

The domestic hot water module includes:

a municipal water pipe, and

a heat exchanger having a water chamber and a heat exchange chamber;

the oil inlet and the oil outlet of the domestic hot water module are communicated with the heat exchange cavity, the municipal water pipe is provided with two water outlet pipe sections connected with the water use cavity, a fifteenth valve is arranged on one water outlet pipe section, a sixteenth valve and a seventeenth valve positioned on the downstream of the sixteenth valve are arranged on the other water outlet pipe section, and the seventeenth valve is connected with a domestic water pipe for guiding water outwards.

The solar heat collector is a groove type solar heat collector.

The application has the advantages that:

1. the solar energy intermittent type nature, unstable problem have been solved through the mode of heat accumulation to this application, have realized intermittent type energy storage, the purpose of continuous energy consumption. The trough heat collector improves the grade of energy, and achieves the purposes of producing domestic hot water by solar energy, serving as a heat source or a cold source of an air conditioner and improving the performance of an enclosure structure. And the carbon emission of the building is reduced.

2. This application adopts the slot type heat collector to assemble the sunlight, realizes improving the purpose of solar energy flux density. The operation temperature of the trough heat collector can reach 250-380 ℃ to meet the use requirement. Compared with a tower type heat collector, the solar heat collector has the advantages of small area and low cost, and is suitable for being installed and used on a building roof.

3. The heat conduction oil is adopted as a heat storage medium, has the advantages of difficult phase change, large specific heat capacity, low price and the like, and is suitable for being applied to buildings.

4. The alternating energy storage and utilization of the first heat storage tank and the second heat storage tank solve the intermittent and unstable conditions in the solar energy utilization process and realize the continuous supply of energy.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a solar energy system according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a domestic water module in an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a building envelope improvement module according to an embodiment of the present disclosure;

fig. 4 is a schematic view of an overall structure of a containment performance improving module in the embodiment of the present application;

wherein:

Detailed Description

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present application. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In the description of the present specification, the terms "connected", "mounted", "fixed", and the like are to be understood in a broad sense. For example, "connected" may be fixedly connected, detachably connected, or integrally connected; may be connected directly or indirectly through intervening media. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present specification, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present application.

Fig. 1 to 4 show a specific embodiment of the solar system of the present application, which mainly comprises a solar collector 1, a first thermal storage tank 2 and a second thermal storage tank 3. Wherein the solar heat collector 1 is a groove type solar heat collector, and a certain amount of heat conducting oil is stored in the first heat storage tank 2 and the second heat storage tank 3. An oil outlet pipe 4 of the first heat storage tank and an oil inlet pipe 5 of the first heat storage tank are connected between the first heat storage tank 2 and the solar heat collector 1. The oil outlet pipe 4 of the first heat storage tank is used for leading out the heat conducting oil in the first heat storage tank 2 to the solar heat collector 1. The first heat storage tank oil inlet pipe 5 is used for introducing the heat conduction oil flowing out of the solar heat collector 1 into the first heat storage tank 2. An oil outlet pipe 6 of the second heat storage tank and an oil inlet pipe 7 of the second heat storage tank are connected between the second heat storage tank 3 and the solar heat collector 1. The second heat storage tank oil outlet pipe 6 is used for leading out the heat conducting oil in the second heat storage tank 3 to the solar heat collector 1. And the second heat storage tank oil inlet pipe 7 is used for introducing the heat conduction oil flowing out of the solar heat collector 1 into the second heat storage tank 3. A first heat storage tank heat supply pipe 8 and a first heat storage tank heat return pipe 9 are connected between the first heat storage tank 2 and the heat using unit. The first heat storage tank heat supply pipe 8 is used for transmitting high-temperature heat conduction oil in the first heat storage tank 2 to the heat using unit so as to heat (exchange heat) the heat using unit. The first heat storage tank heat return pipe 9 returns the heat-exchanged heat transfer oil with relatively low temperature to the first heat storage tank 2. A second heat storage tank heat supply pipe 10 and a second heat storage tank heat return pipe 11 are connected between the second heat storage tank 3 and the heat using unit. The second heat storage tank heating pipe 10 is used to transfer high-temperature heat transfer oil in the second heat storage tank 3 to the heat using unit to heat (exchange heat) the heat using unit. The second heat storage tank heat return pipe 11 returns the heat-exchanged heat transfer oil with relatively low temperature to the second heat storage tank 3.

The oil inlet pipe 4 of the first heat storage tank, the oil inlet pipe 5 of the first heat storage tank, the oil outlet pipe 6 of the second heat storage tank, the oil inlet pipe 7 of the second heat storage tank, the heat supply pipe 8 of the first heat storage tank, the heat return pipe 9 of the first heat storage tank, the heat supply pipe 10 of the second heat storage tank and the heat return pipe 11 of the second heat storage tank are all provided with valves so as to control the connection and disconnection of each pipeline. And circulating pumps are arranged on the first heat storage tank oil outlet pipe 4, the second heat storage tank oil outlet pipe 6, the first heat storage tank heat supply pipe 8 and the second heat storage tank heat supply pipe 10, so that heat conduction oil is forcibly driven to flow in related pipelines by the aid of the circulating pumps.

Specifically, a first valve 17 is arranged on the oil outlet pipe 4 of the first heat storage tank. The first heat storage tank oil inlet pipe 5 is provided with a second valve 18. A third valve 19 is arranged on the oil outlet pipe 6 of the second heat storage tank, and a fourth valve 20 is arranged on the oil inlet pipe 7 of the second heat storage tank. A fifth valve 21 is arranged on the first heat storage tank heating pipe 8. And a sixth valve 22 is arranged on the first heat storage tank regenerative pipe 9. And a seventh valve 23 is arranged on the second heat storage tank heating pipe 10. And an eighth valve 24 is arranged on the second heat storage tank regenerative pipe 11.

Further, the aforementioned first and second heat storage

tank outlet lines

4 and 6 have a common pipe section connected to the solar collector 1. Since many of the lines in this embodiment have a common pipe section, for ease of description and ease of understanding the solution of this embodiment, the common pipe section of the first and second thermal

storage tank flowlines

4 and 6 will be referred to herein as the first common pipe section. A circulation pump, here referred to as first circulation pump 12, is connected to the aforementioned first common section. The advantage of so setting up lies in, need not to dispose the circulating pump for first heat storage tank oil outlet pipe 4 and second heat storage tank oil outlet pipe 6 respectively (like this needs two circulating pumps), first heat storage tank oil outlet pipe 4 and second heat storage tank oil outlet pipe 6 share same circulating pump-first circulating pump 12, have saved and have used circulating pump quantity.

The first and second heat storage tank heating pipes 8 and 10 have a second common pipe section connected to the heat using unit. A second circulation pump 13 is connected to the aforementioned second common pipe section. The first heat storage tank heat supply pipe 8 and the second heat storage tank heat supply pipe 10 share the same circulating pump, namely a second circulating pump 13, so that the quantity of the circulating pumps is further saved.

The heat utilization unit specifically comprises a domestic hot water module 14, an air conditioning module 15 and a containment performance improving module 16. Wherein the building envelope improving module 6 mainly comprises a heat-sending coil 16b embedded in the building wall 16 a. The building wall is generally a north outer wall of a building. When the device is actually used, the high-temperature heat conduction oil led into the heat-sending coil pipe is used for heating the building wall, so that the overall temperature level of a room close to the north facade is improved.

The second common pipe section is provided with three oil outlets in total, and the three oil outlets are respectively connected with an oil inlet of the domestic hot water module 14, an oil inlet of the air conditioner module 15 and an oil inlet of the containment performance improving module 6.

Further, the first and second heat storage tank

regenerative tubes

9 and 11 have a third common tube section connected to the heat using unit. And three oil return ports are formed in the third common pipe section and are respectively connected with the oil outlet of the domestic hot water module 14, the oil outlet of the air conditioner module 15 and the oil outlet of the containment performance improving module 6.

In order to realize the independent control of the oil supply and return of the three heat utilization modules, namely the domestic hot water module 14, the air conditioning module 15 and the enclosure performance improving module 6, in the embodiment, a ninth valve 25 is arranged at an oil inlet of the domestic hot water module 14, a tenth valve 26 is arranged at an oil outlet of the domestic hot water module 14, an eleventh valve 27 is arranged at an oil inlet of the air conditioning module 15, a twelfth valve 28 is arranged at an oil outlet of the air conditioning module 15, a thirteenth valve 29 is arranged at an oil inlet of the enclosure performance improving module 16, and a fourteenth valve 30 is arranged at an oil outlet of the enclosure performance improving module 16. In practical application, the high-temperature heat conduction oil can be supplied to the domestic hot water module 14, the air conditioning module 15 or/and the containment performance improving module 16 by opening and closing the relevant valves and electrifying the second circulating pump 13.

Referring to fig. 1, the fifth valve 21 of the first heat storage tank heating pipe 8 is specifically arranged on the pipe section at the upstream of the second common pipe section, and the returned heat conducting oil passes through the second common pipe section and then passes through the sixth valve 22. The sixth valve 22 of the first heat storage tank regenerative pipe 9 is specifically arranged on the pipe section downstream of the third common pipe section. The seventh valve 23 of the second heat storage tank heating pipe 10 is arranged in particular in the pipe section upstream of the second common pipe section. The eighth valve 24 of the fourth heat storage tank regenerative tube 11 is specifically arranged on the tube section downstream of the third common tube section.

The domestic hot water module 14 includes: municipal water pipes 14b and a heat exchanger 14a having a water chamber and a heat exchange chamber. An oil inlet and an oil outlet of the domestic hot water module 14 are both communicated with the heat exchange cavity. The municipal water pipe 14b has two outlet sections connected to the water-using chamber, wherein one of the outlet sections is provided with a fifteenth valve 14c, and the other outlet section is provided with a sixteenth valve 14d and a seventeenth valve 14e located downstream of the sixteenth valve. The seventeenth valve 14e is connected with a domestic water pipe 14f for introducing water outwards.

Referring to fig. 1 again, the main workflow of the solar energy system of the present embodiment is described as follows:

1. energy storage and utilization part:

1) energy storage and utilization parts of the heat storage tank:

a. the first heat storage tank 2 stores energy:

when the weather is fine: the first circulation pump 1 and the first and

second valves

17 and 18 are opened, and the third and

fourth valves

19 and 20 are closed. The first circulation circulating pump 12 pumps the low-temperature heat conduction oil in the first heat storage tank 2 out from the bottom and slowly pumps the low-temperature heat conduction oil into the solar heat collector 1. The solar heat collector 1 collects sunlight and heats heat-conducting oil. The heated heat transfer oil slowly flows into the first heat storage tank 2 from the upper part thereof through the second valve 18. When the whole heat conduction oil in the first heat storage tank 2 reaches the highest temperature of the groove type solar heat collector, the heat storage of the first heat storage tank 2 is completed. When the weather is rainy: the first circulation pump 12 and the first and

second valves

17 and 18 are closed, and the energy storage is stopped.

b. Energy consumption of the second heat storage tank 3:

the second circulation pump 13, the seventh valve 23, the eighth valve 24, the ninth valve 25, the tenth valve 26, the eleventh valve 27, and the twelfth valve 28 are opened, and the fifth valve 21 and the sixth valve 22 are closed. The second circulation pump 13 pumps the high-temperature heat transfer oil in the second heat storage tank 3 from the upper portion, and the heat energy is transferred to the domestic hot water module 14 through the second heat storage tank heat supply pipe 10, the seventh valve 23, the eighth valve 24, and the ninth valve 25, and the heat energy is transferred to the air conditioning module 15 through the second heat storage tank heat supply pipe 10, the seventh valve 23, the tenth valve 26, and the eleventh valve 27.

2) The second heat storage tank 3 stores energy, and when the first heat storage tank 2 uses energy:

a. the second heat storage tank 3 stores energy:

when the weather is fine: the first circulation pump 12 and the third and

fourth valves

19, 20 are opened and the first and

second valves

17, 18 are closed. The first circulating pump 12 pumps the low-temperature heat conduction oil in the second heat storage tank 3 out from the bottom and slowly pumps the low-temperature heat conduction oil into the solar heat collector 1. The solar heat collector 1 collects sunlight and heats heat conduction oil, and the heated heat conduction oil slowly flows into the second heat storage tank 3 from the upper part of the second heat storage tank through the third valve 19. When the whole heat conduction oil in the second heat storage tank 3 reaches the highest temperature of the groove type solar heat collector, the heat storage of the second heat storage tank 3 is completed. When the weather is rainy: first circulation pump 12 and third and

fourth valves

19, 20 are closed, and energy storage is stopped.

b. Energy consumption of the first heat storage tank 2:

the second circulation pump 13, the fifth valve 21, the sixth valve 22, the ninth valve 25, the tenth valve 26, the eleventh valve 27, and the twelfth valve 28 are opened, and the seventh valve 23 and the eighth valve 24 are closed. The second circulation pump 13 pumps the high-temperature heat transfer oil in the first heat storage tank 2 out of the upper portion, and the heat energy is transferred to the domestic hot water module 14 through the fifth valve 21, the ninth valve 25 and the tenth valve 26, and is transferred to the air conditioning module 15 through the fifth valve 21, the eleventh valve 27 and the twelfth valve 28.

The first heat storage tank 2 and the second heat storage tank 3 can be recycled to store energy and use energy according to the energy storage and use conditions of the first heat storage tank 2 and the second heat storage tank 3, and the purposes of intermittent energy storage and continuous energy use are achieved.

The building envelope performance enhancement module 16 has been described above as primarily including heat delivery coils 16b embedded within the building wall 16 a. The building envelope structure is the same for the same building, but due to the influence of sunshine factors, the heat gain of the north facade wall of the building in winter is obviously smaller than that of other facing walls, so that the overall temperature level of the room close to the south facade in winter is higher, and the overall temperature of the room close to the north facade is lower (the comfort is poor). The building enclosure performance improving module 16 conveys the collected solar energy to the heat conveying coil 16b of the north wall through a pipe network, and the purpose of improving the integral temperature level (comfort) of a north facade room is achieved by increasing the heat gain of the north wall building enclosure.

It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present application, and the present application is not limited thereto. All equivalent changes and modifications made according to the spirit of the main technical scheme of the application are covered in the protection scope of the application.

Claims

1. A solar energy system for reducing carbon emissions from a building, comprising:

a solar heat collector (1),

a first heat storage tank (2) which stores heat conducting oil,

a second heat storage tank (3) which stores heat conducting oil,

an oil outlet pipe (4) of the first heat storage tank and a first heat storage tank oil inlet pipe (5) of the solar heat collector are connected with the first heat storage tank,

an oil outlet pipe (6) of the second heat storage tank and a second heat storage tank oil inlet pipe (7) of the solar heat collector are connected with the second heat storage tank,

a first heat storage tank heat supply pipe (8) and a first heat storage tank heat return pipe (9) which are connected with the first heat storage tank and the heat using unit,

a second heat storage tank heat supply pipe (10) and a second heat storage tank heat return pipe (11) which are connected with the second heat storage tank and the heat using unit,

connect in first heat storage tank goes out oil pipe (4), first heat storage tank advances oil pipe (5), second heat storage tank goes out oil pipe (6), second heat storage tank advances oil pipe (7), first heat storage tank heating pipe (8), first heat storage tank heating pipe (9), second heat storage tank heating pipe (10) with valve on second heat storage tank heating pipe (11) to and

a circulating pump connected to the first heat storage tank oil outlet pipe (4), the second heat storage tank oil outlet pipe (6), the first heat storage tank heat supply pipe (8) and the second heat storage tank heat supply pipe (10).

2. The solar system for reducing carbon emissions from buildings according to claim 1, characterised in that the first and second thermal storage tank outlet pipes (4, 6) have a first common pipe section connected to the solar collector (1) and a first circulation pump (12) is connected to the first common pipe section.

3. The solar system for reducing carbon emissions from buildings according to claim 1, wherein the first and second thermal storage tank heating pipes (8, 10) have a second common pipe section connected to the solar collector (1), and a second circulation pump (13) is connected to the second common pipe section.

4. The solar system for reducing carbon emissions from a building of claim 3, wherein the heat using units comprise a domestic hot water module (14), an air conditioning module (15) and a containment performance enhancement module (16), the containment performance enhancement module (16) comprising heat delivery coils embedded in the walls of the building.

5. The solar system for reducing carbon emission of buildings according to claim 4, wherein the second common pipe section is provided with three oil outlets, and the three oil outlets are respectively connected with the oil inlet of the domestic hot water module (14), the oil inlet of the air conditioning module (15) and the oil inlet of the containment performance improving module (16).

6. The solar system for reducing carbon emission of buildings according to claim 5, wherein the first heat storage tank heat regenerative pipe (9) and the second heat storage tank heat regenerative pipe (11) have a third common pipe section connected with the heat using unit, and the third common pipe section is provided with three oil return ports respectively connected with the oil outlet of the domestic hot water module (14), the oil outlet of the air conditioning module (15) and the oil outlet of the containment performance improving module (16).

7. The solar system for reducing carbon emission of buildings according to claim 5, wherein valves are arranged at the oil inlet and the oil outlet of the domestic hot water module (14), the oil inlet and the oil outlet of the air conditioning module (15), and the oil inlet and the oil outlet of the enclosure performance improving module (16).

8. The solar system for reducing carbon emissions from buildings according to claim 6, wherein the first heat storage tank heating pipe (8) is provided with a valve on the pipe section upstream of the second common pipe section, the second heat storage tank heating pipe (10) is provided with a valve on the pipe section upstream of the second common pipe section, the first heat storage tank regenerative pipe (9) is provided with a valve on the pipe section downstream of the third common pipe section, and the second heat storage tank regenerative pipe (11) is provided with a valve on the pipe section downstream of the third common pipe section.

9. Solar system for reducing carbon emissions from buildings according to claim 5, characterised in that said domestic hot water module (14) comprises:

a municipal water pipe (14b), and

a heat exchanger (14a) having a water chamber and a heat exchange chamber;

the oil inlet and the oil outlet of the domestic hot water module (14) are communicated with the heat exchange cavity, the municipal water pipe (14b) is provided with two water outlet pipe sections connected with the water cavity, a fifteenth valve (14c) is arranged on one water outlet pipe section, a sixteenth valve (14d) and a seventeenth valve (14e) located on the downstream of the sixteenth valve are arranged on the other water outlet pipe section, and a domestic water pipe (14f) for guiding water outwards is connected to the seventeenth valve (14 e).

10. Solar system for reducing carbon emissions from buildings according to claim 1, characterized in that the solar collector (1) is a trough solar collector.