CN102155809A

CN102155809A - Full-glass vacuum solar heat collection tube with extending section on inner tube

Info

Publication number: CN102155809A
Application number: CN 201110132448
Authority: CN
Inventors: 李衡权; 罗赞继; 程翠英
Original assignee: BEIJING TIANPU SOLAR ENERGY INDUSTRY Co Ltd
Current assignee: BEIJING TIANPU SOLAR ENERGY INDUSTRY Co Ltd
Priority date: 2011-05-20
Filing date: 2011-05-20
Publication date: 2011-08-17

Abstract

The invention provides a full-glass vacuum solar heat collection tube with an extending section on an inner tube, and belongs to the field of solar utilization devices. The inner tube (2) of the vacuum tube outward and coaxially extends to form the extending section (4); the port of the extending section (4) is an opening end (5) of the vacuum tube; the outer diameter of the extending section (4) is equal to or less than that of the inner tube (2); the length L of the extending section (4) is determined according to a design requirement; the full-glass vacuum solar heat collection tube accords with the condition that the opening end (5) can be assembled with a corresponding tank reliably and effectively through a matched sealing ring (6) in a matching way; the vacuum tubes of a whole machine can be arranged compactly to the largest extent, so the thermal performance index of the whole machine accords with the national first-level energy efficiency standard, and the vacuum cavities of the vacuum tubes can all realize the function of absorbing sunshine; moreover, the full-glass vacuum solar heat collection tube has simple and reliable structure, stable performance, high economical efficiency and social benefit, and is applicable to mass production.

Description

Interior pipe has the complete glass vacuum sun thermal-collecting tube of extension

Technical field

The invention belongs to the helioplant field, pipe has the complete glass vacuum sun thermal-collecting tube of extension in relating to.

Background technology

In the prior art, conventional complete glass vacuum sun thermal-collecting tube (hereinafter to be referred as vacuum tube), promptly an end is a blind end, one end is an openend, weak point is: pipe is welded together for neat mouthful at openend with outer tube in it, pipe is that the vacuum chamber of forming is each other sealed in level and smooth being welded together mutually of arcuation with the port of outer tube at openend promptly, in application, this structure makes openend need bigger pilot hole of diameter and supporting sealing ring when directly being assemblied on the tube inner bag of header of the case inner bag of boiler of solar water heater or solar thermal collector, therefore, be difficult to realize that vacuum tube closely arranges, thereby influence effective heat that gets of unit are, be difficult to reach the country-level efficiency standard of domestic solar hot-water heating system---be comprehensive thermal property coefficient (CTPC) primary standard; In addition, vacuum tube inserts the part in boiler or the header---and be that vacuum chamber inserts the part in boiler or the header, general length is 5～6cm, and this insertion portion can not be brought into play the effect that absorbs sunlight, wastes.

Summary of the invention

The technical problem that solves:

Change the structure of conventional vacuum tube openend, under the prerequisite that does not influence its vacuum chamber, the outside coaxial extension of pipe in it is constituted the extension, the port of extension is the openend of vacuum tube, during application, the extension is with openend, and reliable and effective being assembled together of the supporting formula of pilot hole on the tube inner bag of the header of the case inner bag of the boiler by supporting sealing ring and solar water heater or solar thermal collector, can overcome the deficiencies in the prior art, the realization vacuum tube is closely arranged, make the hot property index of complete machine reach country-level efficiency standard, and reduce the cost of vacuum tube.

The technical scheme that adopts:

Interior pipe has the complete glass vacuum sun thermal-collecting tube of extension, basic structure with conventional complete glass vacuum sun thermal-collecting tube, the location steel card, getter and the openend that are equipped with in absorber coatings, vacuum chamber and the vacuum chamber on the outer surface of outer tube, interior pipe and interior pipe, it is characterized in that: under the prerequisite that guarantees vacuum chamber, the outside coaxial extension of interior pipe constitutes the extension, and the port of extension is the openend of vacuum tube; The radially specification of extension is identical with the radially specification of interior pipe, and perhaps the external diameter of extension is less than the external diameter of interior pipe; The length L of extension needs according to design and decide, and the shortest openend that should guarantee passes through supporting sealing ring, can with reliable and effective being assembled together of the supporting formula of pilot hole on the inner bag of the header of the case inner bag of the boiler of solar water heater or solar thermal collector.

Beneficial effect:

In the present invention, because pipe has the extension in it, therefore, its openend by the reliable and effective boiler that is assemblied in solar water heater of supporting sealing ring the case inner bag or the pilot hole on the tube inner bag of the header of solar thermal collector on the time, do not comprise vacuum chamber, again because the external diameter of extension is equal to or less than the external diameter of interior pipe, therefore, the diameter of the pilot hole on the corresponding inner bag is littler than the diameter of pilot hole of the prior art, as seen, in the vacuum tube of same diameter is arranged, and under the condition that the effective spacing between the adjacent vacuum tube equates, compare, use when of the present invention, effective spacing between the adjacent pilot hole on the corresponding inner bag, during than the employing prior art, effective spacing between the adjacent pilot hole on the corresponding inner bag is big, therefore, use when of the present invention, effective spacing between the adjacent pilot hole on the corresponding inner bag can be dwindled, neither can influence the intensity and the assembly quality of corresponding inner bag, therefore can dwindle again vacuum tube arrange in effective spacing between the adjacent vacuum tube, thereby can realize to greatest extent that the complete machine vacuum tube closely arranges, make the hot property index of complete machine reach country-level efficiency standard; In addition, in the present invention, when suitably extending in the extension, guaranteeing under the reliable and effective prerequisite that is assemblied on the corresponding inner bag of openend, the vacuum chamber of vacuum tube can all expose to outside the header of the boiler of solar water heater or solar thermal collector and the shell of adjacent described boiler or header, can make the vacuum chamber of vacuum tube all bring into play the effect that absorbs sunlight, thereby reduce the cost of vacuum tube; Simple and reliable for structure, stable performance, the suitable production in enormous quantities in enormous quantities, good economy performance, social benefit is good.

Description of drawings

Fig. 1, general structure schematic diagram;

Fig. 2, assembling schematic diagram ();

Fig. 3, assembling schematic diagram (two);

Fig. 4, solar water heater schematic diagram;

Fig. 5, solar thermal collector schematic diagram;

The specific embodiment

Further explanation in detail in conjunction with the accompanying drawings;

Example among the figure, the 15-weld bond, the 16-absorber coatings, 17-location steel card, 18---getter;

Shown in Fig. 1～5, in the present invention, side at the openend 5 of vacuum tube, under the prerequisite that guarantees vacuum chamber 3, promptly be welded together mutually and seal under the prerequisite of the vacuum chamber of forming each other 3 at outer tube 1 and interior pipe 2, the 2 outside coaxial extensions of interior pipe constitute extension 4, and the port of extension 4 is the openend 5 of vacuum tube; The radially specification of extension 4 is identical with the radially specification of interior pipe 2, and perhaps the external diameter of extension 4 is less than the external diameter of interior pipe 2; The length L of extension 4 is the shortest should to guarantee openend 5 by supporting sealing ring 6, can supporting formula is reliable and effective is assembled together with pilot hole 7 on the tube inner bag 11 of the header 9 of the case inner bag 10 of the boiler 8 of solar water heater or solar thermal collector.

As shown in Figure 2, the length L of extension 4, can make vacuum tube when using assembling, the vacuum chamber 3 of vacuum tube all exposes to outside the header 9 of the boiler 8 of solar water heater or solar thermal collector, and the shell 12 of adjacent described boiler 8 of an end of vacuum chamber 3 or header 9, when using assembling, on end of vacuum chamber 3 and shell 12 adjacent positions, supporting external seal protector 13 is housed.

As shown in Figure 3, the length L of extension 4, can make vacuum tube when using assembling, some can insert the vacuum chamber 3 of vacuum tube in the heat-insulation layer 14 of header 9 of the boiler 8 of solar water heater or solar thermal collector, when using assembling, on the jack contact position of vacuum chamber 3 and shell 12, supporting external seal protector 13 is housed.

When the external diameter of extension 4 during less than the external diameter of interior pipe 2, the internal diameter scaled down of extension 4.

According to the diameter of GB regulation is that the vacuum tube of Φ 58mm is an example:

Adopt the present invention to realize that vacuum tube closely arranges, the effective spacing between the adjacent vacuum tube can narrow down to 5～6mm, through thermal performance test, can reach the country-level efficiency standard of domestic solar hot-water heating system.

Adopt the vacuum tube of prior art, the effective spacing between the adjacent vacuum tube is more than the 15mm, and hot property does not reach country-level efficiency standard.

Described " effectively spacing " is meant clear spacing, the gap that promptly is commonly called as.

Claims

1. interior pipe has the complete glass vacuum sun thermal-collecting tube of extension, basic structure with conventional complete glass vacuum sun thermal-collecting tube, the location steel card, getter and the openend that are equipped with in absorber coatings, vacuum chamber and the vacuum chamber on the outer surface of outer tube, interior pipe and interior pipe, it is characterized in that: under the prerequisite that guarantees vacuum chamber, the outside coaxial extension of interior pipe constitutes the extension, and the port of extension is the openend of vacuum tube; The radially specification of extension is identical with the radially specification of interior pipe, and perhaps the external diameter of extension is less than the external diameter of interior pipe; The length L of extension needs according to design and decide, and the shortest openend that should guarantee passes through supporting sealing ring, can with reliable and effective being assembled together of the supporting formula of pilot hole on the inner bag of the header of the case inner bag of the boiler of solar water heater or solar thermal collector.

2. pipe has the complete glass vacuum sun thermal-collecting tube of extension in according to claim 1, it is characterized in that: the length L of extension (4), can make vacuum tube when using assembling, the vacuum chamber of vacuum tube (3) all exposes to outside the header (9) of the boiler (8) of solar water heater or solar thermal collector, and the shell (12) of adjacent described boiler of an end of vacuum chamber (3) (8) or header (9), perhaps can make vacuum tube when using assembling, some can insert the vacuum chamber of vacuum tube (3) in the heat-insulation layer (14) of header (9) of the boiler (8) of solar water heater or solar thermal collector.