CN1821524A

CN1821524A - Solar vertical concentrating heat-collecting roof components

Info

Publication number: CN1821524A
Application number: CNA200610049846XA
Authority: CN
Inventors: 郑荣进; 张建高; 傅莉霞
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2006-03-15
Filing date: 2006-03-15
Publication date: 2006-08-23

Abstract

The longitudinal solar energy focusing and heat collecting roof member consists of a casing, a heat insulating layer, a heat collecting tube, a light focusing and heat collecting device, a header, a transparent cover plate, a draining channel and a header heat insulating layer. Compared with available technology, the present invention has the following advantages: heat blocking casing with high heat insulating function, no influence on roof waterproof effect, glass vacuum heat collecting pipe or heat pipe type vacuum heat collecting pipe as heat absorbing pipe with pressure bearing capacity and lowered cavity temperature inside the casing, high heat collecting efficiency and lowered cost.

Description

Solar energy longitudinal light focusing heat collecting type roof member

Technical field

The present invention relates to a kind of technology of utilizing of solar energy, particularly a kind of solar energy longitudinal light focusing heat collecting type roof member.

Background technology

Solar thermal utilization is more and more universal, but with the attachment form of structure of solar energy collector as building, outward appearance, the civic landscape of building is had a negative impact, and realize that solar energy and architecture-integral are the developing direction of solar energy industry.When flat plate collector was used for producing high-temperature-hot-water, the thermal efficiency was low, causes cavity temperature height simultaneously, should not adopt in solar energy and architecture-integral; Solar vacuum tube collector is because can not pressure-bearing, or because of the single tube damage can cause the whole system paralysis, also is not suitable for solar energy and building is integrated.In south weather sweltering heat in summer, the hot water consumption is few, and heat can be used as the refrigeration air-conditioner energy in the solar energy collector, and the hot-water air-conditioning association system is the developing direction of solar energy composite heat utilization.

Present solar energy and building are integrated, mostly be solar energy collector attached on the building, this is that solar energy combines with building, and solar energy truly and building are integrated, be solar energy collector as building member, become the ingredient of building.

Summary of the invention

The objective of the invention is to provide a kind of solar energy longitudinal light focusing heat collecting type roof member, and this member of polylith can be formed a complete roofing, and this building roofing has good thermal and insulating performance, water resistance, the collecting efficiency height, the hot water temperature's height that provides, building is aesthetic in appearance.

A kind of solar energy longitudinal light focusing heat collecting type roof member, comprise housing, the thermal insulation layer, concentrating collector, thermal-collecting tube, it is characterized in that: this roofing element is by housing 1, thermal insulation layer 2, thermal-collecting tube 3, concentrating collector 4, union pipe 5, transparent cover plate 6, rhone 7 and union pipe insulation layer 8 constitute, thermal insulation layer 2 is installed on the housing 1, housing 1 is fixed on the roofing, a plurality of thermal-collecting tubes 3 are arranged in the top of thermal insulation layer 2, be vertical arrangement, thermal-collecting tube 3 and concentrating collector 4 are installed in respectively on the thermal insulation layer 2, the reflective surface of concentrating collector 4 is that the endothermic tube with thermal-collecting tube is the reverse involute surface of base cylinder, the sunshine that reflects on a plurality of reverse involute surfaces accumulates in respectively on the endothermic tube of corresponding thermal-collecting tube 3, one end of thermal-collecting tube 3 is connected with union pipe 5, and mutually vertical union pipe 5, is connected with heat storage water tank by circulation line; Union pipe insulation layer 8 is made up of first half insulation layer 8a and Lower Half insulation layer 8b, first half insulation layer 8a is installed on the union pipe 5, Lower Half insulation layer 8b and thermal insulation layer 2 are connected as a single entity, and transparent cover plate 6 is installed in housing 1 top, and rhone 7 is arranged in the bottom of concentrating collector 4; Roofing housing 1 is disconnected heat bridge housing; Vacuum heat collection pipe 3 adopts all-glass heat pipe vacuum collector tube, perhaps hot pipe type vacuum heat collection pipe.

The transparent cover plate 6 of this roofing element becomes roofing first road waterproof and the drainage blanket, and concentrating collector 4 and rhone 7 constitute second road roof waterproof and the drainage blanket.This solar energy longitudinal light focusing heat collecting type roof member is sat and to be faced south and arrange, be installed in south, roof domatic on.

With prior art relatively, the present invention has following advantage: 1) housing 1 is equipped with the thermal insulation layer for disconnected heat bridge housing, makes the building roof have good thermal and insulating performance; 2) be provided with two road roof waterproof and drainage blankets, guarantee the roof water-proof requirement; 3) adopting all-glass heat pipe vacuum collector tube or hot pipe type vacuum heat collection pipe is endothermic tube, can bear pressure, reduces the cavity temperature in the housing; 4) with the endothermic tube be the concentrating collector of the reverse involute surface of base cylinder, sunlight almost all can be reflexed on the endothermic tube, significantly improve heat-collecting temperature and collecting efficiency, reduce cost.

Description of drawings

Fig. 1 is the structural representation of this solar energy longitudinal light focusing heat collecting type roof member.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 1, and the vertical black matrix in the union pipe 5 is the extension of thermal-collecting tube 3.

The left view of the solar energy longitudinal light focusing heat collecting type roof member of installing on a room with a northern exposure face of Fig. 4 for the double-pitch type roof of embodiment 2 usefulness.

Fig. 5 is the construction diagrams of a plurality of solar energy longitudinal light focusing heat collecting type roof members of embodiment 2 usefulness.

The specific embodiment

Embodiment 1:

A kind of solar energy longitudinal light focusing heat collecting type roof member: plastic-steel, the disconnected heat bridge housing of aluminium alloys, shell dimension 1300 * 1900 * 110mm; The hard-foam polyurethane insulating, thickness 30mm; φ 58 * 1800mm all-glass heat pipe vacuum collector tube is managed several 9; The light and heat collection modulator material is the minute surface aluminium sheet, is 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 1700mm; The union pipe material is a copper, and diameter is 40mm, wall thickness 3mm; Union pipe insulation layer material is a hard-foam polyurethane, thickness 30mm; Transparent cover plate is that thickness is the high-transparent glass plate of 3mm, and the rhone material is an aluminium sheet, is of a size of 50 * 30mm.According to the roof size, arrange several roofing element unit.

Embodiment 2:

A kind of southern domatic roof that solar energy longitudinal light focusing heat collecting type roof member has been installed, as shown in Figure 4 and Figure 5, Fig. 4 is the left view on double-pitch type roof, S is that south is domatic among the figure, N is the north slope face, solar energy longitudinal light focusing heat collecting type roof member be installed in south domatic on, totally two row, the house degree of depth is 6.8m; Fig. 5 is the domatic elevation in south, roof, and this roofing is assembled by 10 solar energy longitudinal light focusing heat collecting type roof members, and each grid is represented a solar energy longitudinal light focusing heat collecting type roof member, and the width in house is 13.2m.

Claims

1. solar energy longitudinal light focusing heat collecting type roof member, comprise housing, the thermal insulation layer, concentrating collector, thermal-collecting tube, it is characterized in that: this roofing element is by housing (1), thermal insulation layer (2), thermal-collecting tube (3), concentrating collector (4), union pipe (5), transparent cover plate (6), rhone (7) and union pipe insulation layer (8) constitute, thermal insulation layer (2) is installed on the housing (1), housing (1) is fixed on the roofing, a plurality of thermal-collecting tubes (3) are arranged in the top of thermal insulation layer (2), be vertical arrangement, thermal-collecting tube (3) and concentrating collector (4) are installed in respectively on the thermal insulation layer (2), the reflective surface of concentrating collector (4) is that the endothermic tube with thermal-collecting tube is the reverse involute surface of base cylinder, the sunshine that reflects on a plurality of reverse involute surfaces accumulates in respectively on the endothermic tube of corresponding thermal-collecting tube (3), one end of thermal-collecting tube (3) is connected with union pipe (5), and vertical mutually, and union pipe (5) is connected with heat storage water tank by circulation line; Union pipe insulation layer (8) is made up of first half insulation layer (8a) and Lower Half insulation layer (8b), first half insulation layer (8a) is installed on the union pipe (5), Lower Half insulation layer (8b) is connected as a single entity with thermal insulation layer (2), transparent cover plate (6) is installed in housing (1) top, and rhone (7) is arranged in the bottom of concentrating collector (4).

2. solar energy longitudinal light focusing heat collecting type roof member according to claim 1 is characterized in that: housing (1) is disconnected heat bridge housing.

3. solar energy longitudinal light focusing heat collecting type roof member according to claim 1 is characterized in that: thermal-collecting tube (3) adopts all-glass heat pipe vacuum collector tube or hot pipe type vacuum heat collection pipe.