CN1837538A

CN1837538A - Horizontal concentrating solar heat collecting roof

Info

Publication number: CN1837538A
Application number: CNA200610050335XA
Authority: CN
Inventors: 傅莉霞; 张建高; 郑荣进
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2006-04-14
Filing date: 2006-04-14
Publication date: 2006-09-27

Abstract

The invention relates to a transverse light gathering solar-energy roof, which is characterized in that: several heat collecting tubes 3 and light gathering heat collectors 4 are mounted on the thermal-insulated layer 1; one end of 3 are connected to the longitudinal coupling tubes 5, while they are alternatively distributed along the left and right of 5; the angle alphabetween the heat collecting tube and the coupling tube 5 is 66-84degrees; and the reflective surface of 4 is the composite paraboloid. The invention has the advantages that: it has the first and second roof waterproof and discharge layers, and the light gathering collectors are downwards inclined distributed; the hollow chamber temperature of frame 2 is reduced; and the composite paraboloid light gathering heat collector 4 can reflect light to the heat adsorption tube most. The invention has lower producing cost.

Description

Horizontal light-concentrating solar heat-collection roof

Technical field

The present invention relates to a kind of helioplant, particularly a kind of horizontal light-concentrating solar heat-collection roof.

Background technology

Solar energy and architecture-integral are the developing direction of solar energy industry, also be national regenerative resource in building field, use give priority to direction.

The heat collection component of solar energy and architecture-integral should have heat collection function, and the architectural exterior-protecting construction function is arranged again; The heat collection component product will develop to standard block, composite module, whole roofing or three directions of whole metope.The particularly technical development of solar airconditioning, the requirement of high-temperature-hot-water during proposition can be produced to solar energy collector.The present invention is on the basis of Chinese patent CN 200610049846.X, for further improving complicated roof applicability, reduces cost, and accelerates toggle speed, further improves the hot water temperature and solar heat-collection roof that the integral installation of developing becomes.

Summary of the invention

The purpose of this invention is to provide a kind of horizontal light-concentrating solar heat-collection roof, the solar heat-collection roof of this integral body, can reach building roof insulation heat-proof quality and water resistance requirement, the draining smoothness, it is higher to have collecting efficiency simultaneously, and toggle speed is faster, middle high-temperature-hot-water is provided, make building aesthetic in appearance, and, satisfy the requirement of difference in functionality roof (if any skylight, dormer window) by changing the length of thermal-collecting tube.

A kind of horizontal light-concentrating solar heat-collection roof, comprise the thermal insulation layer, fixed frame, thermal-collecting tube, concentrating collector, union pipe, transparent cover plate, it is characterized in that: thermal insulation layer 1 is installed on the concrete roof, fixed frame 2 places on the thermal insulation layer 1, and be fixed on the roofing supporting seat, a plurality of thermal-collecting tubes 3 and concentrating collector 4 are installed on the thermal insulation layer 1, one end of a plurality of thermal-collecting tubes 3 is communicated with the union pipe 5 of vertical layout respectively, and be arranged in the left side and the right of union pipe 5 with interlacing, angle α between thermal-collecting tube 3 and the union pipe 5 is 66 °～84 °, the reflective surface of concentrating collector 4 adopts the combined type parabola, its input and output channel of solar energy heat absorbing medium by union pipe 5 is connected with heat storage water tank respectively, the outside of union pipe 5 is provided with insulation layer 6, its first half insulation layer 6a is installed on the union pipe 5, Lower Half insulation layer 6b and thermal insulation layer 1 are connected as a single entity, and be fixed on the roofing supporting seat, transparent cover plate 7 is installed in fixed frame 2 tops, and rhone 8 is arranged in the bottom of concentrating collector 4; In union pipe 5, heat-exchange tube 5a can be housed; Fixed frame 2 adopts hot bridge cutoff type hermetically-sealed construction.

With prior art relatively, advantage of the present invention is: thermal insulation layer 1 is installed on concrete roof, fixed frame 2 be arranged in thermal insulation layer 1 on, and be fixed on the roofing supporting seat, fixed frame 2 satisfies the building roofing incubation and thermal insulation function better for disconnected heat bridge-hermetically-sealed construction; The transparent cover plate 7 on fixed frame 2 and its top is formed first road roof waterproof and the drainage blanket, and concentrating collector 4, rhone 8 are formed second road roof waterproof and the drainage blanket, guarantee the roof water-proof function; To be downward low dip transversely arranged because of concentrating collector 4, and rhone 8 is arranged in the bottom of concentrating collector 4, makes roof drainage smooth especially; Adopting all-glass heat pipe vacuum collector tube or hot pipe type vacuum heat collection pipe is endothermic tube, can bearing operation, reduce the cavity temperature in the fixed frame 2, and reduce roof heat insulation isolation layer thickness; Compound parabolic concentrator collector 4, the sunlight that can will be radiated at concentrating collector 4 reflexes on the endothermic tube to greatest extent, significantly improves heat-collecting temperature and collecting efficiency; The heat-collecting roof covering cost is low.

Description of drawings

Fig. 1 is the elevation in house, and the S face is that south is domatic among the figure, K ₁, K ₂The input and output pipeline of representing heat-absorbing medium respectively.

Fig. 2 is the structural representation that is contained in the horizontal light-concentrating solar heat-collection roof of south on domatic.

Fig. 3 is the A partial sectional view of Fig. 1.

Fig. 4 is Fig. 2 partial front structural representation.

Fig. 5 is the C-C sectional drawing of Fig. 4.

Fig. 6 is the D-D sectional drawing of Fig. 4.

Fig. 7 is the B partial sectional view of Fig. 4.

The horizontal light-concentrating solar heat-collection roof outline drawing that Fig. 8 adopts for embodiment.

The specific embodiment

Embodiment 1:

A kind of horizontal light-concentrating solar heat-collection roof of integral body, be contained in the inclination angle and be 30 ° of south domatic on, as shown in Figure 8, collector area is 9900 * 3700mm, the fixed frame that adopts plastic-steel or aluminium alloys to make, the same roofing of size; Insulating is a hard-foam polyurethane, and thickness is 30mm; φ 58 * 1600 all-glass heat pipe vacuum collector tubes, the transverse pipe number is 26, and pipe is apart from being the minute surface aluminium sheet for 130mm light and heat collection modulator material, and composite parabolic is for being the reverse involute surface of base cylinder with 47mm, involute surface is of a size of involute surface and launches 160.3 degree, and length is 1550mm; The union pipe material is a copper, and diameter is 40mm, and wall thickness is 3mm; Union pipe insulation layer material is a hard-foam polyurethane, and thickness is 30mm; Angle α between thermal-collecting tube and the union pipe is 81 °; Transparent cover plate is that thickness is the high-transparent glass plate of 3mm; The rhone material is an aluminium sheet, and cross dimensions is 40 * 40mm.

Embodiment 2:

A kind of horizontal light-concentrating solar heat-collection roof of integral body, be contained in the inclination angle and be 22 ° of south domatic on, as shown in Figure 8, collector area is 9900 * 3700mm, the fixed frame that adopts plastic-steel or aluminium alloys to make, the same roofing of size; Insulating is a hard-foam polyurethane, and thickness is 30mm; φ 58 * 1600 all-glass heat pipe vacuum collector tubes, transverse pipe number are 26, and the pipe distance is 130mm; The light and heat collection modulator material is the minute surface aluminium sheet, and composite parabolic is for being the reverse involute surface of base cylinder with φ 47mm, and involute surface is of a size of involute surface and launches 160.3 degree, and length is 1550mm; The union pipe material is a copper, and diameter is 40mm, and wall thickness is 3mm; Union pipe insulation layer material is a hard-foam polyurethane, and thickness is 30mm; Angle α between thermal-collecting tube and the union pipe is 68 °; Transparent cover plate is that thickness is the high-transparent glass plate of 3mm; The rhone material is an aluminium sheet, and cross dimensions is 40 * 40mm.

Claims

1. horizontal light-concentrating solar heat-collection roof, comprise the thermal insulation layer, fixed frame, thermal-collecting tube, concentrating collector, union pipe, transparent cover plate, it is characterized in that: thermal insulation layer (1) is installed on the concrete roof, fixed frame (2) places on the thermal insulation layer (1), and be fixed on the roofing supporting seat, a plurality of thermal-collecting tubes (3) and concentrating collector (4) are installed on the thermal insulation layer (1), one end of a plurality of thermal-collecting tubes (3) is communicated with the union pipe (5) of vertical layout respectively, and be arranged in the left side and the right with union pipe (5) with interlacing, angle (α) between thermal-collecting tube (3) and the union pipe (5) is 66 °～84 °, the reflective surface of concentrating collector (4) adopts the combined type parabola, its input and output channel of solar energy heat absorbing medium by union pipe (5) is connected with heat storage water tank respectively, the outside of union pipe (5) is provided with insulation layer (6), its first half insulation layer (6a) is installed on the union pipe (5), Lower Half insulation layer (6b) is connected as a single entity with thermal insulation layer (1), and be fixed on the roofing supporting seat, transparent cover plate (7) is installed in fixed frame (2) top, and rhone (8) is arranged in the bottom of concentrating collector (4).

2. horizontal light-concentrating solar heat-collection roof according to claim 1 is characterized in that: heat-exchange tube (5a) can be housed in union pipe (5).

3. horizontal light-concentrating solar heat-collection roof according to claim 1 is characterized in that: fixed frame (2) adopts hot bridge cutoff type hermetically-sealed construction.