CN2388564Y

CN2388564Y - Screw straight-flow glass solar vacuum heat-collecting tube

Info

Publication number: CN2388564Y
Application number: CN99248088U
Authority: CN
Inventors: 李先航
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-10-08
Filing date: 1999-10-08
Publication date: 2000-07-19
Anticipated expiration: 2009-10-08

Abstract

The utility model relates to a screw thread straight-flow type whole glass solar vacuum heat collecting tube, which comprises an outer tube (1), a vacuum chamber (2), an inner tube (3), a water inlet connecting tube which led out from the inner tube (3), a heat collecting coating (6) which arranged on the outer surface of the inner tube (3), and an upper and a lower brackets. The screw thread straight-flow type whole glass solar vacuum heat collecting tube is characterized in that the tube wall of the inner tube (3) forms the shape of a continuous screw thread body (9). The screw thread straight-flow type whole glass solar vacuum heat collecting tube has the advantages of large reception area of sunlight irradiation, small influence of solar azimuth, large capacity, little resistance for one-way straight cycle, high heat efficiency, favorable retractility for resisting the cold contraction and heat expansion, easy discharge of water in the inner tube (3), long service life, and correspondingly easy processing and manufacture.

Description

Screw thread straight-flow type whole-glass solar vacuum heat-collecting pipe

The utility model belongs to the helioplant field, relates to a kind of screw thread line straight-flow type whole-glass solar vacuum heat-collecting pipe.

In the prior art, full-glass solar energy collecting vacuum tube has following several types substantially: common single straight cast, its vacuum heat collection pipe caliber is less, inner tube outer surface is the light face, it is little to receive the sunlight area, takes over because of its Inlet and outlet water again and is all one, and water is difficult for circulation in the pipe, be difficult for emitting, the thermal efficiency is greatly affected; Heat pipe type, it accepts sunlight board is flat, and it is bigger influenced by solar azimuth, and because of its secondary heat exchange influence, the thermal efficiency is also undesirable again; U type cast, its U type bottom water is difficult for putting only, and easily cause freezing winter; Spiral straight-flow type, see Chinese patent application number: 992111323, plant no comparable advantage though have first three: reception sunlight area is big, the water one-way flow, circulation smoothly, start soon, the thermal efficiency is high, but still has following deficiency: pipe is thinner in the spiral, capacity is little, the water circulation resistance is big, easy cleaning not after the fouling, and the difficulty height is manufactured in processing.

The purpose of this utility model is to provide a kind of screw thread straight-flow type whole-glass solar vacuum heat-collecting pipe, can overcome the deficiencies in the prior art, it is big to receive the solar radiation area, and it is little influenced by solar azimuth, capacity is big, the unidirectional direct current circulation resistance of water is little, and thermal efficiency height has the retractility when resisting cold shrinkage and thermal expansion preferably, interior Guan Shuiyi is put only, long service life especially is fit to family and uses, and processing is manufactured relatively and is easier to.

Concrete scheme of the present utility model is as follows:

Screw thread straight-flow type whole-glass solar vacuum heat-collecting pipe, have outer tube 1, vacuum chamber 2, interior pipe 3 and on draw and be tightly connected with outer tube 1 that together water inlet takes over 4, water outlet takes over 5, with and outer surface on thermal-arrest coating 6 and bracket 7, bottom bracket 8, it is characterized in that: the tube wall of interior pipe 3 is and has continuous threaded body 9 types.

Usefulness of the present utility model is: it is big to receive the solar radiation area, it is little influenced by solar azimuth, capacity is big, the unidirectional direct current circulation resistance of water is little, and thermal efficiency height has the retractility when resisting cold shrinkage and thermal expansion preferably, water in the interior pipe 3 is easily put only, long service life especially is fit to family and uses, and processing is manufactured difficulty and is easier to relatively.

Accompanying drawing 1, general structure schematic diagram;

Accompanying drawing 2, amplification I;

Accompanying drawing 3, A-A cutaway view;

Accompanying drawing 4, Inlet and outlet water adapter 4 or 5 be the type schematic diagram in the shape of a spiral;

Embodiment: in conjunction with the accompanying drawings, further auspiciously add explanation.

Water inlet take over 4 and water outlet take over 5 be connected on respectively in the two ends of pipe 3, and pass respectively by two ends and to draw after outer tube 1 is tightly connected together with it simultaneously, as shown in Figure 1.

Water inlet take over 4 and water outlet take over 5 and select one or type in the shape of a spiral jointly, the retractility when improving its opposing cold shrinkage and thermal expansion is difficult for explosion, as shown in Figure 4.

Between interior pipe 3 and the outer tube 1 intermediate bracket 10 is housed, to improve its bearing.

Shown in attached Fig. 1 and 2, the tube wall of interior pipe 3 is and has continuous threaded body 9 types, comprises following two kinds of versions:

First kind: the threaded line one that is meant continuous threaded body 9 is its corresponding crest and be respectively identical number and mutually disjoint helix continuously by valley line, the helix of plain bolt outer surface roughly the same, the tube wall of interior pipe 3 is continuous spiral three-dimensional-structure.

Second kind: the threaded line one that is meant continuous threaded body 9 is its corresponding each crest and trough all respectively do for oneself an independence of enclosing and the circumference of disjoint sealing, the ripples streakline of concentric-ring pattern roughly the same, the tube wall of interior pipe 3 is continuous ripple three-dimensional-structure.

Claims

1, screw thread straight-flow type whole-glass solar vacuum heat-collecting pipe, have outer tube (1), vacuum chamber (2), interior pipe (3) and on draw, and be tightly connected with outer tube (1) that (4) are taken in together water inlet, (5) are taken in water outlet, with and outer surface on thermal-arrest coating (6) and bracket (7), bottom bracket (8), it is characterized in that: the tube wall of interior pipe (3) is and has continuous threaded body (9) type.

2, screw thread straight-flow type whole-glass solar vacuum heat-collecting pipe according to claim 1, it is characterized in that: (4) are taken in water inlet and the two ends that (5) are connected on interior pipe (3) are respectively taken in water outlet, and pass outer tube (1) respectively by two ends, draw after being tightly connected together with it simultaneously.

3, screw thread straight-flow type whole-glass solar vacuum heat-collecting pipe according to claim 1 and 2 is characterized in that: water inlet is taken over (4) and water outlet adapter (5) and is selected one or type in the shape of a spiral jointly.

4, screw thread straight-flow type whole-glass solar vacuum heat-collecting pipe according to claim 1 and 2 is characterized in that: between interior pipe (3) and the outer tube (1) intermediate bracket (10) is housed.

5, screw thread straight-flow type whole-glass solar vacuum heat-collecting pipe according to claim 3 is characterized in that: between interior pipe (3) and the outer tube (1) intermediate bracket (10) is housed.