Roof heat insulation structure

Abstract

The utility model relates to the technical field of buildings, in particular to a roof heat insulation structure. A roof heat insulation structure comprises a heat insulation layer arranged on the outer surface of a roof and used for preventing external heat energy from being transmitted into a room through the roof; the water guide layer is arranged above the heat insulation layer, the water guide layer comprises a first surface and a second surface which are oppositely arranged, the first surface is in contact with the heat insulation layer, and at least one water guide groove is formed in the second surface; and the reflective layer is arranged above the second surface and is used for reflecting external heat radiation. The roof heat insulation structure can effectively prevent heat energy from being transmitted to the roof, liquid flows through the water guide grooves to evaporate and absorb heat to take away heat, and cooling of the roof is further achieved.

Description

Technical Field

[0001] The present application relates to the field of building technology, and in particular to a roof insulation structure. Background Art

[0002] Roof insulation is a key area of architectural technology. In related technologies, roof insulation is often achieved by installing both an insulating layer and a reflective layer. The insulating layer effectively prevents heat from transferring from the roof into the house, while the reflective layer reflects external heat radiation.

[0003] If only the heat-insulating layer and the reflective layer are considered in the heat-insulating structure of the roof, heat will easily accumulate on the heat-insulating layer and the reflective layer, causing the roof to continue to heat up and the heat-insulating effect to be poor. Utility Model Content

[0004] The present application discloses a roof insulation structure, in which a water-conducting layer is additionally provided between the heat-insulating layer and the reflective layer. The water-conducting layer comprises a water-conducting groove. When liquid flows through the water-conducting groove, it can absorb heat by evaporation and remove the heat accumulated in the heat-insulating layer and the reflective layer, thereby achieving cooling of the roof.

[0005] To achieve the above objectives, the present application discloses a roof insulation structure, which includes:

[0006] The heat insulation layer is provided on the outer surface of the roof of the house to prevent the heat energy from the outside from being transferred into the house through the roof;

[0007] a water-conducting layer, arranged above the heat-insulating layer, the water-conducting layer comprising a first surface and a second surface arranged opposite to each other, the first surface being arranged in contact with the heat-insulating layer, and the second surface being provided with at least one water-conducting groove;

[0008] The reflective layer is arranged above the second surface and is used for reflecting external heat radiation.

[0009] Optionally, the thermal insulation structure further includes:

[0010] The liquid supply component is connected to each of the water guide grooves and is used to input cooling liquid into each of the water guide grooves.

[0011] The liquid supply component includes a liquid storage component, a first connecting pipe and a pump body, the liquid outlet end of the first connecting pipe is respectively connected to each of the water guide grooves, the liquid inlet end of the first connecting pipe is connected to the output end of the pump body, and the input end of the pump body is connected to the liquid storage component.

[0012] Optionally, the outer surface of the roof includes a first slope and a second slope connected at the top, and the at least one water guide groove includes at least one first sub-water guide groove corresponding to the first slope and at least one second sub-water guide groove corresponding to the second slope, the first sub-water guide groove extends along the inclination direction of the first slope, and the second sub-water guide groove extends along the inclination direction of the second slope, and the liquid outlet end of the first connecting pipe is provided with at least two nozzles, at least one of which is used to spray coolant into the first sub-water guide groove, and at least one of which is used to spray coolant into the second sub-water guide groove.

[0013] Optionally, the thermal insulation structure further includes a receiving groove, wherein:

[0014] The receiving groove is arranged outside the house and at a position corresponding to the outlet of the at least one water guide groove.

[0015] Optionally, the liquid storage component is the receiving tank, and the liquid providing assembly further includes a second connecting pipe, and two ends of the second connecting pipe are respectively connected to the receiving tank and the input end of the pump body.

[0016] Optionally, the outer surface of the roof includes a first slope and a second slope connected at the top, the at least one water guide groove includes at least one first sub-water guide groove corresponding to the first slope and at least one second sub-water guide groove corresponding to the second slope, the receiving groove includes a first receiving groove corresponding to the at least one first sub-water guide groove and a second receiving groove corresponding to the at least one second sub-water guide groove, the second connecting pipe includes a first part second connecting pipe corresponding to the first receiving groove, and a second part second connecting pipe corresponding to the second receiving groove, and the liquid supply component also includes a tee, which is respectively connected to the first part second connecting pipe, the second part second connecting pipe and the pump body.

[0017] Optionally, the receiving tank includes an inclined plate, a filter plate and a receiving cavity, the inclined plate is arranged in the receiving cavity at an inclined angle at a preset angle, a through hole is provided at the lower end of the inclined plate, and the filter plate is fixedly arranged in the through hole, wherein:

[0018] The inclined plate is used to guide the liquid entering the receiving tank to the filter plate;

[0019] The filter plate is used to filter out impurities in the liquid directed to the filter plate and output the filtered liquid to the accommodating cavity.

[0020] Optionally, the lower end of the inclined plate is arranged on the side wall of the accommodating cavity, and the heat insulation structure further includes a drain pipe, which is connected to the side wall and is used to discharge impurities filtered by the filter plate.

[0021] Optionally, the lower end of the inclined plate is arranged at a target position of the side wall, the side wall is provided with an overflow port, the lowest end of the overflow port is higher than the target position, and the sewage pipe is connected to the side wall through the overflow port.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] In the present application, a water-conducting layer is provided between the heat-insulating layer and the reflective layer, and the water-conducting layer contains at least one water-conducting groove. When liquid flows through the water-conducting groove, the evaporation and heat absorption of the liquid will take away the heat energy accumulated on the heat-insulating layer and the reflective layer, thereby achieving the cooling of the heat-insulating layer and the reflective layer, thereby preventing the roof temperature from being too high and continuing to radiate heat into the house. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 is a schematic diagram of a roof insulation structure provided in an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of a roof water-conducting layer structure provided in an embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of another roof water-conducting layer structure provided in an embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of another roof water guide layer structure provided in an embodiment of the present application;

[0029] Figure 5 is a schematic diagram of the structure of a liquid providing assembly provided in an embodiment of the present application;

[0030] Figure 6 It is a schematic diagram of the receiving groove structure provided in an embodiment of the present application;

[0031] Figure 7 This is a top view of a nozzle structure provided in an embodiment of the present application;

[0032] Figure 8 is a top view of another nozzle structure provided in an embodiment of the present application;

[0033] Figure 9 This is a top view of another nozzle structure provided in an embodiment of the present application.

[0034] Explanation of the main reference numerals: 1-roof; 2-roof; 3-reflective layer; 4-water-conducting layer; 5-insulating layer; 6-spraying pipe; 7-nozzle; 8-water guide trough; 81-main water guide trough; 82-branch water guide trough; 9-first connecting pipe; 10-pump body; 11-tee pipe; 12-second connecting pipe; 13-receiving trough; 14-sewage pipe; 15-inclined plate; 16-filter plate; 17-overflow outlet; 18-accommodating chamber. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0037] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0038] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0039] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0040] The installation of roof insulation structure is very important in the field of building technology, which can effectively reduce the indoor temperature in summer. In related technologies, in order to achieve roof insulation, the method of installing an insulation layer or a reflective layer on the roof or a combination of the two is often adopted. There are usually three types of insulation layer installation: built-in insulation layer, which places the insulation material inside the roof structure, such as laying an insulation layer under the roof panel or on the ceiling; external insulation layer, which places the insulation layer outside the roof structure, such as laying insulation material on roof tiles or waterproof layer; intermediate insulation layer, which places the insulation material in the middle layer of the roof structure, such as installing an insulation layer between the roof panel and the waterproof layer. The reflective layer is often set on the surface of the roof to reflect the sun's radiant heat and reduce heat absorption.

[0041] In actual applications, the sun's radiant heat tends to accumulate between the insulation layer and the reflective layer. The heat energy continues to radiate downward, causing the roof to continue to heat up, resulting in poor insulation effect. To solve the above problem, an embodiment of the present application provides a roof insulation structure. In this insulation structure, a water-conducting layer is added between the insulation layer and the reflective layer. The water-conducting layer includes at least one water-conducting groove. When the coolant flows through the water-conducting groove, it absorbs heat by evaporation and can remove the heat accumulated between the insulation layer and the reflective layer, further reducing the temperature to achieve a high-temperature barrier effect. Even in extremely hot weather, as long as the coolant is continuously supplied to the water-conducting groove, the insulation structure involved in the present application can achieve the effect of roof insulation and cooling.

[0042] The following is a schematic diagram of the roof insulation structure of an embodiment of the present application to make the structural connection relationship involved in this solution clearer.

[0043] See also Figure 1 , is a schematic diagram of a roof insulation structure provided in an embodiment of the present application.

[0044] The roof insulation structure includes a housing 1 and a roof 2 mounted on the housing 1. The insulation structure of the roof 2 is composed of a reflective layer 3, a water-conducting layer 4, and an insulation layer 5. The top surface of the roof 2 is provided with an insulation layer 5. Optionally, the insulation layer 5 can be configured as: an internal insulation layer, in which the insulation material is placed inside the roof structure, such as beneath the roof deck or on the ceiling; an external insulation layer, in which the insulation material is placed outside the roof structure, such as above the roof tiles or waterproof layer; or an intermediate insulation layer, in which the insulation material is placed in the middle layer of the roof structure, such as between the roof deck and the waterproof layer. Preferably, an external insulation layer is used.

[0045] In some possible embodiments, the filling material of the thermal insulation layer 5 may include but is not limited to expanded polystyrene (EPS), extruded polystyrene (XPS), polyurethane foam (PU), mineral wool, glass wool, and the like.

[0046] The water-conducting layer 4 is divided into two surfaces. The lower surface is in contact with the heat-insulating layer 5 , and the upper surface is provided with at least one water-conducting groove 8 . When the coolant flows through the water-conducting groove 8 , it can absorb heat by evaporation.

[0047] The reflective layer 3 is arranged above the upper surface of the water-conducting layer and is in contact with the raised plane between the water-conducting grooves 8. The lower surface of the reflective layer 3 and the water-conducting grooves 8 together form a semi-enclosed pipe structure.

[0048] In some possible embodiments, the reflective material used on the upper surface of the reflective layer 3 includes but is not limited to white or light-colored paint, ceramic microbead paint, aluminum foil, galvanized steel plate, polyester reflective film, aluminized polyester film, coated steel plate, aluminum plate, etc.

[0049] To prevent the reflective material of the reflective layer 3 from being damaged by the coolant in the water-conducting layer, the lower surface of the reflective layer 3 needs to be waterproofed. In some possible embodiments, the waterproof material used on the lower surface of the reflective layer 3 includes, but is not limited to, asphalt waterproofing membrane, thermoplastic polyolefin membrane, polyvinyl chloride membrane, ethylene propylene rubber membrane, polyurethane waterproof coating, self-adhesive waterproofing membrane, liquid rubber waterproof coating, etc.

[0050] By arranging the water-conducting layer 4 between the heat-insulating layer 5 and the reflective layer 3, the accumulated heat can be effectively absorbed, thereby achieving continuous cooling of the roof.

[0051] According to the different roof structures, the structure of the corresponding water-conducting layer 4 should also be different. Traditional roofs include but are not limited to double-sided roofs, single-sided roofs, and four-sided roofs. Figure 2 、 3 , 4 are respectively a schematic diagram of the double-sided roof water guide layer structure, a schematic diagram of the single-sided roof water guide layer structure, and a schematic diagram of the four-sided roof water guide layer structure provided in the embodiments of the present application.

[0052] In one possible embodiment, Figure 2 As shown, the upper surface of the water-conducting layer 4 is evenly distributed with water-conducting grooves 8. Each water-conducting groove 8 has a corresponding nozzle 7 at its upper end. The nozzles 7 are connected in series with a spray pipe 6. The nozzles 7 spray coolant delivered by the spray pipe 6 into the water-conducting grooves 8. As the coolant flows through the water-conducting grooves 8, it evaporates, absorbs heat, and removes heat between the insulation layer 5 and the reflective layer 3. The roof 2 comprises two symmetrically arranged first and second sloping surfaces. Specifically, the water-conducting layer 4 comprises a first sub-water-conducting layer 4 corresponding to the first sloping surface and a second sub-water-conducting layer 4 corresponding to the second sloping surface. The water-conducting grooves 8 extend along the inclination of the sloping surfaces, and the water-conducting grooves 8 corresponding to the two sloping surfaces are symmetrically distributed.

[0053] In some possible embodiments, the water channel 8 needs to be made of corrosion-resistant and weather-resistant materials, including but not limited to galvanized steel, stainless steel, aluminum alloy, polyvinyl chloride (PVC), fiberglass reinforced plastic (FRP), etc.

[0054] In some possible embodiments, in order to prevent the coolant in the water-conducting layer 4 from penetrating into the insulation layer 5 and damaging the insulation layer 5, thereby affecting the service life of the insulation layer 5, the water-conducting layer 4 needs to be filled with waterproof materials, including but not limited to asphalt waterproof membranes, polymer waterproof membranes, etc.

[0055] In some possible embodiments, the angle between the water guide groove 8 and the lower end of the water guide layer 4 can be set to 0°-90°. Preferably, the angle between the water guide groove 8 and the lower end of the water guide layer 4 is set to 90°, that is, vertically. The lower end of the water guide layer 4 can be understood as the side with a lower distance from the ground when the water guide layer 4 is set along the roof.

[0056] In some possible embodiments, the coolant may be rainwater or a mixture of artificially added ethylene glycol and water.

[0057] The outlets of the water troughs 8 corresponding to the first and second inclined surfaces each correspond to a receiving groove 13. Receiving groove 13 is used to receive and store the coolant flowing down the water troughs 8. Since the roof has two inclined surfaces, each is provided with a sub-water-conducting layer. In this case, there are two receiving grooves 13, symmetrically located on the exterior of the house body 1, corresponding to the lower ends of the roof 2's inclined surfaces. It can be understood that the number of receiving grooves and sub-water-conducting layers is positively correlated.

[0058] In one possible embodiment, Figure 3 As shown, the roof is a single-sided roof, with the outer surface of the roof consisting of only one inclined surface. A nozzle 7 is installed at each liquid outlet end of the spray pipe 6. The nozzle is only installed on the side of the spray pipe 6 corresponding to the water channel 8. Each nozzle 7 corresponds to a coolant inlet at the upper end of the water channel 8. All nozzles 7 are arranged in series through the spray pipe 6. In this case, there is only one receiving groove 13, which is located on the outside of the roof body 1 near the lower outlet of the water channel 8.

[0059] In one possible embodiment, Figure 4As shown, the roof is a four-sided roof, the outer surface of which is composed of a first, second, third, and fourth sloping surface, each of which is connected by adjacent edges. The first, second, third, and fourth sloping surfaces are isosceles triangular planes. The first, second, third, and fourth sloping surfaces share a common vertex, at which a spray pipe 6 is disposed. The spray pipe 6 is a cylindrical pipe vertically disposed perpendicular to the ground. The spray pipe 6 includes four liquid outlets, each of which is provided with a nozzle 7. The centerline angle between adjacent nozzles 7 is set at 90°, and each nozzle 7 corresponds to the coolant inlet of a main water channel 81 on the sloping surface. The first main water channel 81 corresponding to the first sloping surface extends along the inclination direction of the first sloping surface and coincides with the perpendicular bisector of the first sloping surface. During the process of the first main water channel 81 extending along the inclined direction of the first slope, the first branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the first slope in a direction parallel to the adjacent side of the closest slope, and the first branch water channel 82 is symmetrically distributed with the perpendicular bisector of the first slope as the axis of symmetry. There is only one first main water channel 81, and there are at least two first branch water channels 82, and their number is an even number. The second main water channel 81 corresponding to the second slope extends along the inclined direction of the second slope, and the second main water channel 81 corresponding to the second slope coincides with the perpendicular bisector of the second slope. During the process of the second main water channel 81 extending along the inclined direction of the second slope, the second branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the second slope in a direction parallel to the adjacent side of the closest slope, and the second branch water channel 82 is symmetrically distributed with the perpendicular bisector of the second slope as the axis of symmetry. There is only one second main water channel 81, and there are at least two second branch water channels 82, and their number is an even number. The third main water channel 81 corresponding to the third slope extends along the inclination direction of the third slope, and the third main water channel 81 corresponding to the third slope coincides with the perpendicular bisector of the third slope. In the process of the third main water channel 81 extending along the inclination direction of the third slope, the third branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the third slope in a direction parallel to the adjacent side of the closest slope, and the third branch water channels 82 are symmetrically distributed with the perpendicular bisector of the third slope as the axis of symmetry. There is only one third main water channel 81, and there are at least two third branch water channels 82, and their number is an even number. The fourth main water channel 81 corresponding to the fourth slope extends along the inclination direction of the fourth slope, and the fourth main water channel 81 corresponding to the fourth slope coincides with the perpendicular bisector of the fourth slope.During the extension of the fourth main water channel 81 along the inclined direction of the fourth slope, the fourth branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the fourth slope in a direction parallel to the adjacent side of the closest slope, and the fourth branch water channel 82 is symmetrically distributed with the perpendicular bisector of the fourth slope as the axis of symmetry. There is only one fourth main water channel 81, and there are at least two fourth branch water channels 82, and their number is an even number. The receiving trough 13 includes a first receiving trough 13 corresponding to the lower outlet of the first main water channel 81 and the first branch water channel 82, a second receiving trough 13 corresponding to the lower outlet of the second main water channel 81 and the second branch water channel 82, a third receiving trough 13 corresponding to the lower outlet of the third main water channel 81 and the third branch water channel 82, and a fourth receiving trough 13 corresponding to the lower outlet of the fourth main water channel 81 and the fourth branch water channel 82.

[0060] In some possible embodiments, the four receiving grooves 13 are arranged in series to form a square annular receiving groove 13 surrounding the outer eaves of the house 1 .

[0061] In some possible embodiments, the four receiving grooves are independently arranged on the outside of the house body 1 near the lower end outlet of the water guide groove 8.

[0062] For roofs with different structures, by reasonably setting the distribution of the water channels 8 of the water-conducting layer 4 of the roof 2, the water channels 8 can cover most of the area of the slope of the roof 2, thereby being able to fully absorb the heat accumulated from the insulation layer 5 and the reflective layer 3, thereby achieving a better insulation effect.

[0063] Without the support of the liquid supply component, the water-conducting layer 4 cannot maintain a continuous supply of cooling liquid, and thus cannot achieve a continuous cooling effect. After introducing the structure of the roof water-conducting layer, the structure of the liquid supply component will be introduced next.

[0064] refer to Figure 5 , which is a schematic diagram of the liquid providing component structure provided in an embodiment of the present application.

[0065] As shown in the figure, the main structure of the liquid supply assembly includes a liquid storage component, a first connecting pipe 9, and a pump body 10, which is used to input cooling liquid into the water guide groove 8.

[0066] In some possible embodiments, the pump body 10 may include but is not limited to an electric pump, a submersible pump, a centrifugal pump, etc.

[0067] The output end of the pump body 10 is connected to the liquid inlet end of the first connecting pipe 9 , the input end of the pump body 10 is connected to the liquid storage element, and the liquid outlet end of the first connecting pipe 9 is connected to the liquid inlet end of the spray pipe 6 .

[0068] In one possible embodiment, the liquid storage element is a receiving trough 13. If the roof 2 is a double-sided roof, the outer surface of the roof is composed of a first inclined surface and a second inclined surface connected at the top. The first sub-water channel 8 corresponding to the first inclined surface extends along the inclined direction of the first inclined surface, and the second sub-water channel 8 corresponding to the second inclined surface extends along the inclined direction of the second inclined surface. The receiving trough 13 includes a first receiving trough 13 corresponding to the lower outlet of the first sub-water channel 8 and a second receiving trough 13 corresponding to the lower outlet of the second sub-water channel 8. The first receiving trough 13 and the second receiving trough 13 are symmetrically arranged on the outer side of the roof 1. The output end of the accommodating chamber 18 of the first receiving trough 13 is connected to the liquid inlet end of the first portion second connecting pipe 12, and the first liquid inlet end of the tee pipe 11 is connected to the liquid outlet end of the first portion second connecting pipe 12; the output end of the accommodating chamber 18 of the second receiving trough 13 is connected to the liquid inlet end of the second portion second connecting pipe 12, and the second liquid inlet end of the tee pipe 11 is connected to the liquid outlet end of the first portion second connecting pipe 12. The liquid outlet of the tee pipe 11 is connected to the input of the pump body 10. When it rains, rainwater falls into the receiving groove 13 and enters the receiving groove 13's accommodating chamber 18. The accommodating chamber 18 is connected to the pump body 10 via the second connecting pipe 12 and the tee pipe 11. The pump body 10 is configured as a centrifugal pump. The centrifugal pump draws liquid from the pump input through the rotating impeller. The centrifugal force of the impeller then throws the liquid toward the pump casing wall, causing the liquid to flow along the pump casing to the output. Rainwater flows through the output of the pump body 10 to the liquid inlet of the spray pipe 6. The spray pipe 6 is a horizontally arranged cylindrical pipe. Each liquid outlet of the spray pipe 6 is equipped with a nozzle 7. The nozzles 7 at both ends of the spray pipe 6 are symmetrically distributed, and each nozzle 7 corresponds to a coolant inlet at the upper end of the water guide groove 8. All nozzles 7 are arranged in series through the spray pipe 6. Under the action of pump body 10, rainwater is sprayed from nozzle 7 mounted at the outlet end of spray pipe 6 to the coolant inlet at the upper end of water channel 8. As the rainwater flows down water channel 8, its temperature drops below the average temperature of reflective layer 3 and insulation layer 5. This temperature difference promotes the evaporation of the rainwater into water vapor, which absorbs heat and removes the heat accumulated in reflective layer 3 and insulation layer 5, thereby cooling the roof. Rainwater that flows through water channel 8 and remains unevaporated flows back into chamber 18 of receiving trough 13, where it is used by pump body 10 to pump rainwater to spray pipe 6 for the next roof cooling operation.

[0069] In a possible embodiment, the liquid storage component can also be a water tank, the liquid outlet of the water tank is connected to the input end of the pump body 10, and the liquid inlet of the water tank can be filled with coolant, including but not limited to water and ethylene glycol solution. The water tank can be set on the ground inside the house or on the house frame. In the case that the roof 2 is a double-sided roof, the outer surface of the roof is composed of a first inclined surface and a second inclined surface connected at the top, and the first sub-water guide groove 8 corresponding to the first inclined surface extends along the inclined direction of the first inclined surface, and the second sub-water guide groove 8 corresponding to the second inclined surface extends along the inclined direction of the second inclined surface. The pump body 10 is configured as a centrifugal pump, which sucks coolant from the input end of the pump through the rotation of the impeller, and then throws the liquid to the pump casing wall through the centrifugal force of the impeller, so that the liquid flows along the pump casing to the output end, and the coolant flows to the liquid inlet end of the spray pipe 6 via the output end of the pump body 10. The spray pipe 6 is a horizontally arranged cylindrical pipe. A nozzle 7 is installed at each outlet of the spray pipe 6. The nozzles 7 are symmetrically distributed at both ends of the spray pipe 6, each corresponding to a coolant inlet at the upper end of the water channel 8. All nozzles 7 are arranged in series through the spray pipe 6. Under the action of the pump body 10, the coolant is sprayed from the nozzles 7 installed at the outlet end of the spray pipe 6 to the coolant inlet at the upper end of the water channel 8. Rainwater flows down the water channel 8. During the flow, the temperature of the coolant is lower than the average temperature of the reflective layer 3 and the thermal insulation layer 5. This temperature difference promotes the evaporation of the coolant and absorbs heat, removing heat accumulated in the reflective layer 3 and the thermal insulation layer 5, thereby cooling the roof.

[0070] In one possible embodiment, when roof 2 is a single-sided roof and the liquid storage element is a receiving trough 13, the roof's outer surface comprises only a single inclined surface, and the corresponding water channel 8 extends along the inclination of the inclined surface. Receiving trough 13 corresponds to the lower outlet of water channel 8 and is located on the exterior of roof 1 near the lower outlet of water channel 8. The output end of receiving chamber 18 of receiving trough 13 is connected to the liquid inlet end of second connecting pipe 12, and the input end of pump body 10 is connected to the liquid outlet end of second connecting pipe 12. When it rains, rainwater falls into the receiving groove 13 and enters the receiving groove 13's receiving chamber 18. The receiving chamber 18 is connected to the pump body 10 via the second connecting pipe 12. The pump body 10 is configured as a centrifugal pump. The centrifugal pump draws liquid from the pump's input end through the rotation of the impeller. The centrifugal force of the impeller then throws the liquid toward the pump casing wall, causing the liquid to flow along the pump casing to the output end. The rainwater flows through the output end of the pump body 10 to the liquid inlet end of the spray pipe 6. The spray pipe 6 is a horizontally arranged cylindrical pipe. Each liquid outlet end of the spray pipe 6 is equipped with a nozzle 7. The spray pipe 6 is only provided with a nozzle on the side corresponding to the water guide groove 8. Each nozzle 7 corresponds to a coolant inlet at the upper end of the water guide groove 8. All nozzles 7 are arranged in series through the spray pipe 6. Under the action of pump body 10, rainwater is sprayed from nozzle 7 mounted at the outlet end of spray pipe 6 to the coolant inlet at the upper end of water channel 8. As the rainwater flows down water channel 8, its temperature drops below the average temperature of reflective layer 3 and insulation layer 5. This temperature difference promotes the evaporation of the rainwater into water vapor, which absorbs heat and removes the heat accumulated in reflective layer 3 and insulation layer 5, thereby cooling the roof. Rainwater that flows through water channel 8 and remains unevaporated flows back into chamber 18 of receiving trough 13, where it is used by pump body 10 to pump rainwater to spray pipe 6 for the next roof cooling operation.

[0071] In one possible embodiment, when roof 2 is a single-sided roof and the liquid storage element is a water tank, the outer surface of the roof includes only a single inclined surface, and the water guide groove 8 corresponding to the inclined surface extends along the inclination direction of the inclined surface. Pump body 10 is configured as a centrifugal pump. The centrifugal pump draws coolant from the pump's input end through the rotation of the impeller. The centrifugal force of the impeller then flings the liquid toward the pump casing wall, causing the liquid to flow along the pump casing toward the output end. The coolant then flows through the output end of pump body 10 to the liquid inlet end of spray pipe 6. Spray pipe 6 is a horizontally arranged cylindrical pipe. Each liquid outlet end of spray pipe 6 is equipped with a nozzle 7. The nozzle is only installed on the side of spray pipe 6 corresponding to water guide groove 8. Each nozzle 7 corresponds to a coolant inlet at the upper end of water guide groove 8. All nozzles 7 are arranged in series through spray pipe 6. Under the action of the pump body 10, the coolant is sprayed from the nozzle 7 installed at the liquid outlet end of the spray pipe 6 to the coolant inlet at the upper end of the water guide trough 8. The rainwater flows down the water guide trough 8. During the flow, the temperature of the coolant is lower than the average temperature of the reflective layer 3 and the thermal insulation layer 5. This temperature difference will promote the evaporation of the coolant to absorb heat, take away the heat accumulated in the reflective layer 3 and the thermal insulation layer 5, and achieve cooling of the roof.

[0072] In one possible embodiment, when the roof 2 is a four-sided roof and the liquid storage element is a receiving trough 13, the roof's outer surface is composed of a first, second, third, and fourth inclined surfaces, each of which is connected by adjacent edges. The first, second, third, and fourth inclined surfaces are isosceles triangular planes. The first, second, third, and fourth inclined surfaces share a common vertex, at which a spray pipe 6 is disposed. The spray pipe 6 is a cylindrical pipe vertically disposed perpendicular to the ground. The spray pipe 6 includes four liquid outlets, each of which is equipped with a nozzle 7. The centerlines of adjacent nozzles 7 are arranged at an angle of 90°. Each nozzle 7 corresponds to the coolant inlet of a main water channel 81 on the inclined surface. The first main water channel 81 corresponding to the first inclined surface extends along the inclination direction of the first inclined surface and coincides with the perpendicular bisector of the first inclined surface. During the process of the first main water channel 81 extending along the inclined direction of the first slope, the first branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the first slope in a direction parallel to the adjacent side of the closest slope, and the first branch water channel 82 is symmetrically distributed with the perpendicular bisector of the first slope as the axis of symmetry. There is only one first main water channel 81, and there are at least two first branch water channels 82, and their number is an even number. The second main water channel 81 corresponding to the second slope extends along the inclined direction of the second slope, and the second main water channel 81 corresponding to the second slope coincides with the perpendicular bisector of the second slope. During the process of the second main water channel 81 extending along the inclined direction of the second slope, the second branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the second slope in a direction parallel to the adjacent side of the closest slope, and the second branch water channel 82 is symmetrically distributed with the perpendicular bisector of the second slope as the axis of symmetry. There is only one second main water channel 81, and there are at least two second branch water channels 82, and their number is an even number. The third main water channel 81 corresponding to the third slope extends along the inclination direction of the third slope, and the third main water channel 81 corresponding to the third slope coincides with the perpendicular bisector of the third slope. In the process of the third main water channel 81 extending along the inclination direction of the third slope, the third branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the third slope in a direction parallel to the adjacent side of the closest slope, and the third branch water channels 82 are symmetrically distributed with the perpendicular bisector of the third slope as the axis of symmetry. There is only one third main water channel 81, and there are at least two third branch water channels 82, and their number is an even number. The fourth main water channel 81 corresponding to the fourth slope extends along the inclination direction of the fourth slope, and the fourth main water channel 81 corresponding to the fourth slope coincides with the perpendicular bisector of the fourth slope.During the extension of the fourth main water channel 81 along the inclined direction of the fourth slope, the fourth branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the fourth slope in a direction parallel to the adjacent side of the closest slope, and the fourth branch water channel 82 is symmetrically distributed with the perpendicular bisector of the fourth slope as the axis of symmetry. There is only one fourth main water channel 81, and there are at least two fourth branch water channels 82, and their number is an even number. The receiving trough 13 includes a first receiving trough 13 corresponding to the lower outlet of the first main water channel 81 and the first branch water channel 82, a second receiving trough 13 corresponding to the lower outlet of the second main water channel 81 and the second branch water channel 82, a third receiving trough 13 corresponding to the lower outlet of the third main water channel 81 and the third branch water channel 82, and a fourth receiving trough 13 corresponding to the lower outlet of the fourth main water channel 81 and the fourth branch water channel 82. The first receiving groove 13 , the second receiving groove 13 , the third receiving groove 13 , and the fourth receiving groove 13 are arranged on the outside of the roof 1 .

[0073] When the receiving grooves 13 are arranged in series to form a square annular receiving groove 13 surrounding the outer eaves of the house 1, the accommodating chamber 18 of the first receiving groove 13 is connected to the accommodating chamber of the second receiving groove 13 through a connecting pipe, the accommodating chamber 18 of the second receiving groove 13 is connected to the accommodating chamber of the third receiving groove 13 through a connecting pipe, the accommodating chamber 18 of the third receiving groove 13 is connected to the accommodating chamber of the fourth receiving groove 13 through a connecting pipe, the output end of the accommodating chamber 18 of the fourth receiving groove 13 is connected to the liquid inlet end of the second connecting pipe 12, and the input end of the pump body 10 is connected to the liquid outlet end of the second connecting pipe 12. When it rains, rainwater falls into the receiving groove 13 and enters the receiving groove 13's receiving chamber 18. The four receiving chambers 18 are connected to each other and to the pump body 10 via the second connecting pipe 12 connected to the fourth receiving chamber 18. The pump body 10 is configured as a centrifugal pump. The centrifugal pump draws liquid from the pump's input end through the rotation of the impeller. The centrifugal force of the impeller then throws the liquid toward the pump casing wall, causing the liquid to flow along the pump casing to the output end. Rainwater flows through the output end of the pump body 10 to the liquid inlet end of the spray pipe 6. Each liquid outlet end of the spray pipe 6 is equipped with a nozzle 7. The centerline angle of the four nozzles 7 is set at 90 degrees. Each nozzle 7 corresponds to the coolant inlet at the upper end of the inclined main water tank 81. Under the action of the pump body 10, rainwater is sprayed from the nozzle 7 mounted at the outlet end of the spray pipe 6 to the coolant inlet at the upper end of the main water channel 81. The rainwater then flows down the main water channel 81, and at the junction of the branch water channel 82 and the main water channel 81, some of the coolant flows into the branch water channel 82. During this flow, the temperature of the rainwater is lower than the average temperature of the reflective layer 3 and the thermal insulation layer 5. This temperature difference promotes the evaporation of the rainwater into water vapor, absorbing heat and removing the heat accumulated in the reflective layer 3 and the thermal insulation layer 5, thereby cooling the roof. Rainwater that flows to the outlet of the water channel 8 without evaporation will flow back into the receiving chamber 18 of the receiving groove 13, and will be used by the pump body 10 to pump rainwater to the spray pipe 6 for the next operation of cooling the roof.

[0074] When the receiving grooves 13 are independently arranged on the outside of the housing 1 near the lower end outlet of the water guide groove 8, the output end of the accommodating chamber 18 of the first receiving groove 13 is connected to the liquid inlet end of the first part second connecting pipe 12, and the first liquid inlet end of the five-way pipe is connected to the liquid outlet end of the first part second connecting pipe 12; the output end of the accommodating chamber 18 of the second receiving groove 13 is connected to the liquid inlet end of the second part second connecting pipe 12, and the second liquid inlet end of the five-way pipe is connected to the liquid outlet end of the second part second connecting pipe 12; the output end of the accommodating chamber 18 of the third receiving groove 13 is connected to the liquid inlet end of the third part second connecting pipe 12, and the third liquid inlet end of the five-way pipe is connected to the liquid outlet end of the third part second connecting pipe 12; the output end of the accommodating chamber 18 of the fourth receiving groove 13 is connected to the liquid inlet end of the fourth part second connecting pipe 12, and the fourth liquid inlet end of the five-way pipe is connected to the liquid outlet end of the fourth part second connecting pipe 12. The liquid outlet end of the five-way pipe is connected to the input end of the pump body 10. When it rains, rainwater falls into the receiving groove 13 and enters the receiving groove 13's accommodating chamber 18. These four accommodating chambers are connected to the four liquid inlet ends of the five-way pipe through the second connecting pipe 12, and are connected to the pump body 10 through the five-way pipe. The pump body 10 is configured as a centrifugal pump. The centrifugal pump draws liquid from the pump's input end through the rotation of the impeller. The centrifugal force of the impeller then throws the liquid toward the pump casing wall, causing the liquid to flow along the pump casing to the output end. Rainwater flows through the output end of the pump body 10 to the liquid inlet end of the spray pipe 6. Each liquid outlet end of the spray pipe 6 is equipped with a nozzle 7. The centerline angle of the four nozzles 7 is set at 90 degrees. Each nozzle 7 corresponds to the coolant inlet at the upper end of the inclined main water tank 81. Under the action of the pump body 10, rainwater is sprayed from the nozzle 7 mounted at the outlet end of the spray pipe 6 to the coolant inlet at the upper end of the main water channel 81. The rainwater then flows down the main water channel 81, and at the junction of the branch water channel 82 and the main water channel 81, some of the coolant flows into the branch water channel 82. During this flow, the temperature of the rainwater is lower than the average temperature of the reflective layer 3 and the thermal insulation layer 5. This temperature difference promotes the evaporation of the rainwater into water vapor, absorbing heat and removing the heat accumulated in the reflective layer 3 and the thermal insulation layer 5, thereby cooling the roof. Rainwater that flows to the outlet of the water channel 8 without evaporation will flow back into the receiving chamber 18 of the receiving groove 13, and will be used by the pump body 10 to pump rainwater to the spray pipe 6 for the next operation of cooling the roof.

[0075] In one possible embodiment, when the roof 2 is a four-sided roof and the liquid storage element is a water tank, the roof's outer surface is composed of a first, second, third, and fourth slanted surfaces, each of which is connected by adjacent edges. The first, second, third, and fourth slanted surfaces are isosceles triangular planes. The first, second, third, and fourth slanted surfaces share a common vertex, at which a spray pipe 6 is disposed. The spray pipe 6 is a cylindrical pipe vertically disposed perpendicular to the ground. The spray pipe 6 includes four liquid outlets, each of which is equipped with a nozzle 7. The centerlines of adjacent nozzles 7 are arranged at an angle of 90°. Each nozzle 7 corresponds to the coolant inlet of a main water channel 81 on the corresponding slanted surface. The first main water channel 81 corresponding to the first slanted surface extends along the inclination direction of the first slanted surface and coincides with the perpendicular bisector of the first slanted surface. During the process of the first main water channel 81 extending along the inclined direction of the first slope, the first branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the first slope in a direction parallel to the adjacent side of the closest slope, and the first branch water channel 82 is symmetrically distributed with the perpendicular bisector of the first slope as the axis of symmetry. There is only one first main water channel 81, and there are at least two first branch water channels 82, and their number is an even number. The second main water channel 81 corresponding to the second slope extends along the inclined direction of the second slope, and the second main water channel 81 corresponding to the second slope coincides with the perpendicular bisector of the second slope. During the process of the second main water channel 81 extending along the inclined direction of the second slope, the second branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the second slope in a direction parallel to the adjacent side of the closest slope, and the second branch water channel 82 is symmetrically distributed with the perpendicular bisector of the second slope as the axis of symmetry. There is only one second main water channel 81, and there are at least two second branch water channels 82, and their number is an even number. The third main water channel 81 corresponding to the third slope extends along the inclination direction of the third slope, and the third main water channel 81 corresponding to the third slope coincides with the perpendicular bisector of the third slope. In the process of the third main water channel 81 extending along the inclination direction of the third slope, the third branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the third slope in a direction parallel to the adjacent side of the closest slope, and the third branch water channels 82 are symmetrically distributed with the perpendicular bisector of the third slope as the axis of symmetry. There is only one third main water channel 81, and there are at least two third branch water channels 82, and their number is an even number. The fourth main water channel 81 corresponding to the fourth slope extends along the inclination direction of the fourth slope, and the fourth main water channel 81 corresponding to the fourth slope coincides with the perpendicular bisector of the fourth slope.During the extension of the fourth main water channel 81 along the inclined direction of the fourth inclined surface, the fourth branch water channel 82 branches off from the main water channel 81 and extends to the lower end of the fourth inclined surface in a direction parallel to the adjacent side of the closest inclined surface, and the fourth branch water channel 82 is symmetrically distributed with the perpendicular bisector of the fourth inclined surface as the axis of symmetry. There is only one fourth main water channel 81, and there are at least two fourth branch water channels 82, and their number is an even number. The liquid outlet end of the water tank is connected to the input end of the pump body 10. The water tank can be set on the floor indoors or on a house frame. The pump body 10 is configured as a centrifugal pump, which sucks liquid from the input end of the pump through the rotation of the impeller, and then throws the liquid to the pump casing wall through the centrifugal force of the impeller, so that the liquid flows along the pump casing to the output end, and the cooling liquid flows to the liquid inlet end of the spray pipe 6 through the output end of the pump body 10. Each outlet of the spray pipe 6 is fitted with a nozzle 7. The centerline angle of the four nozzles 7 is set at 90°, and each nozzle 7 corresponds to a coolant inlet at the upper end of the inclined main water channel 81. Under the action of the pump body 10, rainwater is sprayed from the nozzles 7 mounted at the outlet end of the spray pipe 6 to the coolant inlet at the upper end of the main water channel 81. The rainwater then flows down the main water channel 81, and at the junction of the branch water channels 82 with the main water channel 81, some of the coolant flows into the branch water channels 82. During this flow, the temperature of the rainwater is lower than the average temperature of the reflective layer 3 and the thermal insulation layer 5. This temperature difference promotes the evaporation of the rainwater into water vapor, which absorbs heat and removes the heat accumulated in the reflective layer 3 and the thermal insulation layer 5, thereby cooling the roof.

[0076] In the case where the liquid storage member is the receiving tank 13 and other related components, the coolant flows back to the receiving tank 13 after flowing through the water guide groove 8 and can be used for the next cooling operation of the pump body 10. The receiving tank 13 realizes the collection and recycling of the coolant, achieving the effect of saving coolant resources and green circulation of coolant.

[0077] In the case where the liquid storage component is a water tank, the user can add different types of coolants into the water tank according to actual needs, so that the coolant can achieve a better cooling effect when flowing through the water guide groove 8.

[0078] In the above embodiment, the connection relationship between the receiving tank 13 and other structures and the function of the receiving tank 13 to collect and store the coolant are introduced. In order to make it clearer how the receiving tank 13 collects and reuses the coolant, the internal structure of the receiving tank 13 is introduced next.

[0079] refer to Figure 6 , is a schematic diagram of the receiving groove structure provided in an embodiment of the present application.

[0080] As shown in the figure, the receiving tank 13 is composed of a sewage pipe 14 , an inclined plate 15 , a filter plate 16 , an overflow port 17 , and an accommodating chamber 18 .

[0081] In some possible embodiments, the upper end of the inclined plate 15 is disposed at the end of the receiving groove 13 that communicates with the second connecting pipe 12. Optionally, the lower end of the inclined plate 15 is connected to the filter plate 16, or the lower end of the inclined plate 15 is provided with a through hole, in which the filter plate 16 is fixedly disposed. When the lower end of the inclined plate 15 is connected to the filter plate 16, the other end of the filter plate 16 is connected to the inner wall of the receiving groove 13. When the lower end of the inclined plate 15 is provided with a through hole, in which the filter plate 16 is fixedly disposed, the lower end of the inclined plate 15 is connected to the inner wall of the receiving groove 13.

[0082] In some possible embodiments, considering the drainage efficiency and the stability of the receiving groove 13 structure, optionally, the angle between the inclined plate 15 and the horizontal plane can be set to 15°-45°.

[0083] In some possible embodiments, the surface of the inclined plate 15 is designed to be a smooth plane or have guide grooves to guide the direction of water flow.

[0084] In some possible embodiments, the material selection of the inclined plate 15 includes, but is not limited to, stainless steel, aluminum alloy, fiberglass reinforced plastic (FRP), carbon fiber reinforced plastic, precast concrete panels, or lightweight concrete panels.

[0085] In some possible embodiments, the filter plate 16 is provided with evenly distributed holes to effectively filter impurities. Since the filtered substance is a coolant, the pore size can be set to be greater than 1 mm to filter large particles of impurities.

[0086] In some possible embodiments, the material of the filter plate 16 includes but is not limited to polypropylene (PP), polyvinyl chloride (PVC), a ceramic filter plate, and a porous metal material.

[0087] In some possible embodiments, the overflow port 17 is arranged at a position above the target position where the lower end of the inclined plate 15 is connected to the side wall of the accommodating chamber 18. Considering the coolant filtration efficiency, optionally, the overflow port 17 is 10-15 cm away from the lower end of the inclined plate 15.

[0088] In some possible embodiments, a valve may be provided at the overflow port 17, and a liquid level detection device may be provided on the valve. When the liquid level detection device detects that the coolant level exceeds the overflow port, the valve is controlled to open, allowing excess coolant to flow through the overflow port 17 into the drain pipe 14 for discharge.

[0089] In some embodiments, the drain pipe 14 is connected to the side wall of the receiving tank 13, and the inlet of the drain pipe 14 corresponds to the overflow port, which is used to discharge impurities filtered by the filter plate 16 and excess coolant.

[0090] In some possible embodiments, the inner wall of the accommodating cavity 18 is provided with a waterproof coating, including but not limited to polyurethane waterproof coating, acrylic waterproof coating, asphalt-based waterproof coating, cement-based penetrating crystallization waterproof coating, epoxy resin waterproof coating, etc., which is used to prevent the coolant from penetrating into the inner wall of the receiving groove 13.

[0091] In some possible embodiments, a valve may be provided at the output end where the side wall of the accommodating chamber 18 is connected to the liquid inlet end of the second connecting pipe 12. When the spray pipe 6 needs to be supplied with coolant or the coolant in the accommodating chamber 18 is fully stored, the valve is controlled to open, and the coolant can enter the spray pipe 6 through the first connecting pipe 9 via the second connecting pipe 12 under the action of the pump body 10.

[0092] In one possible embodiment, the coolant flows along the water guide trough 8 to the inclined plate 15 of the receiving tank 13. The inclined plate 15 guides the coolant to the filter plate 16. The filter plate 16 has uniformly distributed small holes, which can filter out large particles of impurities with larger diameters in the coolant. The filtered coolant, free of impurities, passes through the small holes of the filter 16 and enters the receiving tank 13 into the receiving chamber 18 for storage. The remaining impurities remain on the upper surface of the filter plate 16. When the coolant flow is strong during heavy rain, the excess coolant and impurities will overflow the overflow port and enter the sewage pipe for discharge of the impurities and excess coolant.

[0093] By arranging a filter plate 16 and a drain pipe 14 in the receiving tank 13, large particles of impurities with larger diameters in the coolant can be removed, preventing the large particles of impurities from entering the second connecting pipe 12, the tee pipe 11, the pump body 10, the first connecting pipe 9, the spray pipe 6, and the nozzle 7 and causing blockage, thereby extending the service life of the relevant structures.

[0094] After introducing the distribution of the water guide grooves 8 and the receiving grooves 13 corresponding to different roof types, the distribution of the nozzles 7 on the spray pipes 6 corresponding to different roof types will be introduced next.

[0095] See also Figure 7 , which is a top view of a nozzle structure provided in an embodiment of the present application.

[0096] In a possible embodiment, the roof 2 is a double-sided roof, the spray pipe 6 is a horizontally arranged cylindrical pipe, and each liquid outlet end of the spray pipe 6 is equipped with a nozzle 7. The nozzles 7 at both ends of the spray pipe 6 are symmetrically distributed, and each nozzle 7 corresponds to a coolant inlet at the upper end of the water guide trough 8. All the nozzles 7 are arranged in series through the spray pipe 6.

[0097] In some possible embodiments, the nozzle type of the spray head 7 may include but is not limited to an adjustable nozzle, a fixed nozzle, a rotating nozzle, and the like.

[0098] In some possible embodiments, the material type of the nozzle 7 may include but is not limited to stainless steel, brass, ABS plastic, polypropylene (PP), fiberglass reinforced plastic (FRP), etc.

[0099] In some possible embodiments, the connection method between the spray head 7 and the spray pipe 6 may include but is not limited to threaded connection, quick connector connection, etc.

[0100] In some possible embodiments, a filter screen or a filter may be provided at the inlet of the nozzle 7 to prevent impurities from clogging the nozzle.

[0101] See also Figure 8 , which is a top view of another nozzle structure provided in an embodiment of the present application.

[0102] In one possible embodiment, roof 2 is a single-sided roof, and spray pipe 6 is a horizontal cylindrical pipe. A nozzle 7 is mounted at each outlet of spray pipe 6. Spray pipe 6 is only provided on one side corresponding to water channel 8. Each nozzle 7 corresponds to a coolant inlet at the upper end of water channel 8, and all nozzles 7 are connected in series through spray pipe 6. Under the action of pump body 10, coolant is sprayed from nozzles 7 mounted at the outlet of spray pipe 6 to the coolant inlet at the upper end of water channel 8.

[0103] See also Figure 9 , which is a top view of another nozzle structure provided in an embodiment of the present application.

[0104] In a possible embodiment, the roof 2 is a four-sided roof, and the four sloping surfaces of the roof 2 have a common vertex. A spray pipe 6 is provided at the vertex, and the spray pipe 6 is a cylindrical pipe vertically arranged perpendicular to the ground. The spray pipe 6 includes four liquid outlet ends, each liquid outlet end is provided with a nozzle 7, and the centerline angle between adjacent nozzles 7 is set to 90°, and each nozzle 7 corresponds to the coolant inlet of a main water tank 81 on the sloping surface.

[0105] By designing different structures of the spray pipe 6 and the nozzle 7 for different types of roofs 2, the coolant can be accurately sprayed into the water channel 8 through the nozzle 7 without wasting the coolant, which is conducive to improving the utilization rate of the coolant.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A roof insulation structure, characterized in that: The thermal insulation structure comprises: The heat insulation layer is provided on the outer surface of the roof of the house to prevent the heat energy from the outside from being transferred into the house through the roof; a water-conducting layer, arranged above the heat-insulating layer, the water-conducting layer comprising a first surface and a second surface arranged opposite to each other, the first surface being arranged in contact with the heat-insulating layer, and the second surface being provided with at least one water-conducting groove; The reflective layer is arranged above the second surface and is used for reflecting external heat radiation.

2. The thermal insulation structure according to claim 1, characterized in that The thermal insulation structure further comprises: The liquid supply component is connected to each of the water guide grooves and is used to input cooling liquid into each of the water guide grooves. The liquid supply component includes a liquid storage component, a first connecting pipe and a pump body.

3. The thermal insulation structure according to claim 2, characterized in that: The liquid outlet end of the first connecting pipe is communicated with each of the water guide grooves respectively, the liquid inlet end of the first connecting pipe is connected to the output end of the pump body, and the input end of the pump body is connected to the liquid storage component.

4. The thermal insulation structure according to claim 3, characterized in that The outer surface of the roof includes a first slope and a second slope connected at the top, and the at least one water guide groove includes at least one first sub-water guide groove corresponding to the first slope and at least one second sub-water guide groove corresponding to the second slope, the first sub-water guide groove extends along the inclination direction of the first slope, and the second sub-water guide groove extends along the inclination direction of the second slope, and the liquid outlet end of the first connecting pipe is provided with at least two nozzles, at least one of which is used to spray coolant into the first sub-water guide groove, and at least one of which is used to spray coolant into the second sub-water guide groove.

5. The thermal insulation structure according to claim 2, characterized in that: The thermal insulation structure further includes a receiving groove, wherein: The receiving groove is arranged outside the house and at a position corresponding to the outlet of the at least one water guide groove.

6. The thermal insulation structure according to claim 5, characterized in that The liquid storage component is the receiving tank, and the liquid providing assembly further includes a second connecting pipe, and two ends of the second connecting pipe are respectively connected to the receiving tank and the input end of the pump body.

7. The thermal insulation structure according to claim 6, characterized in that The outer surface of the roof includes a first slope and a second slope connected at the top, the at least one water guide groove includes at least one first sub-water guide groove corresponding to the first slope and at least one second sub-water guide groove corresponding to the second slope, the receiving groove includes a first receiving groove corresponding to the at least one first sub-water guide groove and a second receiving groove corresponding to the at least one second sub-water guide groove, the second connecting pipe includes a first part second connecting pipe corresponding to the first receiving groove, and a second part second connecting pipe corresponding to the second receiving groove, and the liquid supply component also includes a tee pipe, which is respectively connected to the first part second connecting pipe, the second part second connecting pipe and the pump body.

8. The thermal insulation structure according to any one of claims 5 to 7, characterized in that: The receiving tank includes an inclined plate, a filter plate and a receiving cavity. The inclined plate is tilted at a preset angle in the receiving cavity. A through hole is provided at the lower end of the inclined plate. The filter plate is fixedly provided in the through hole, wherein: The inclined plate is used to guide the liquid entering the receiving tank to the filter plate; The filter plate is used to filter out impurities in the liquid directed to the filter plate and output the filtered liquid to the accommodating cavity.

9. The thermal insulation structure according to claim 8, characterized in that The lower end of the inclined plate is arranged on the side wall of the accommodating cavity. The heat insulation structure further includes a drain pipe, which is connected to the side wall and is used to discharge impurities filtered by the filter plate.

10. The thermal insulation structure according to claim 9, characterized in that: The lower end of the inclined plate is arranged at the target position of the side wall. The side wall is provided with an overflow port. The lowest end of the overflow port is higher than the target position. The sewage pipe is connected to the side wall through the overflow port.

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