CN201285174Y

CN201285174Y - Tube core connection heat-preserving structure of vacuum heat-collecting tube

Info

Publication number: CN201285174Y
Application number: CNU2008201885290U
Authority: CN
Inventors: 周福云
Original assignee: DONGGUAN CAMDA GENERATOR WORK Co Ltd
Current assignee: CAMDA NEW ENERGY EQUIPMENT CO., LTD.
Priority date: 2008-08-13
Filing date: 2008-08-13
Publication date: 2009-08-05
Anticipated expiration: 2018-08-13

Abstract

The utility model relates to a heat-preservation structure of connection between vacuum heat collecting pipe cores, which is a structure of connection between two vacuum heat collecting pipe cores in a solar groove type thermal power generation system. A sleeve pipe is coated at the connecting point between two pipe cores and is connected with the pipe cores in a gap transition way, the sleeve pipe system is a double-layer hollow pipe and comprises an inner pipe, an outer pipe, two seal heads and a vacuum sandwich layer formed by sealing the inner pipe, the outer pipe and the two seal heads, wherein insulating ceramic particles are filled in the sandwich layer; and the sleeve pipe system is taken as the heat-preservation structure through the design of the insulating ceramic particles filled in the sleeve pipe and an insulating ceramic end socket. The utility model fully utilizes the chrematistics of insulating ceramic, for example, the insulating ceramic has the performances of high temperature resistance and very small coefficient of heat transfer, so that the sleeve pipe has the heat-preservation action integrally, the purpose of heat loss prevention can be achieved when the heat-transfer medium floes the connecting part, and under the supporting action of the insulating ceramic particles, the sleeve pipe does not distort under vacuum, therefore, the convenience is provided for use.

Description

The tube core of vacuum heat collection pipe connects insulation construction

Technical field

The utility model relates to a kind of tube core syndeton of vacuum heat collection pipe, refers in particular to the structure of the continuous insulation of two vacuum heat collection pipe tube cores in a kind of solar groove type heat generating system.

Background technology

At present, in the solar groove type heat generating system, often need fit over together, to satisfy the demand of lengthening use organizing the thermal-collecting tube die groupings more; Generally also need to coat insulation by a sleeve pipe, but this sleeve pipe heat insulation effect is undesirable, causes the bigger heat loss in tube core coupling part except one deck articulamentum is arranged in the coupling part, tube core termination of wherein adjacent two thermal-collecting tubes.

The utility model content

The utility model is at the existing disappearance of above-mentioned prior art, and main purpose is to provide a kind of tube core of vacuum heat collection pipe to connect insulation construction, and it both can prevent heat loss, and convenient again installation and attractive in appearance, brought convenience to use.

For realizing above-mentioned purpose, the utility model is taked following technical scheme:

A kind of tube core of vacuum heat collection pipe connects insulation construction, be that two tube core junctions are coated with a sleeve pipe, between this sleeve pipe and tube core is that transition is connected, described sleeve pipe is the pair of lamina hollow pipe, it comprises that pipe, an outer tube, two end sockets and are filled with the insulating ceramic particle by the airtight vacuum interlayer that forms of pipe, outer tube and end socket in this in one in this interlayer.

Described interlayer is a vacuum layer.

On outer tube, be provided with a mouth of bleeding that communicates with interlayer.

Piping is made for the material that can bear high temperature more than 550 ℃ in described.

Described outer tube is can bear-50 ℃ to make to 100 ℃ material.

Described end socket is made by the insulating ceramic material.

The particle diameter of described porous ceramics particle is about 1～5mm.

The advantage of the utility model is that design by being filled with insulating ceramic particle and insulating ceramic end socket in the sleeve pipe is as insulation construction, it has made full use of the insulating ceramic own characteristic, for example have high temperature resistant, performances such as the coefficient of heat conduction is very little, and then make sleeve pipe integral body have insulation effect, can realize the purpose of anti-heat loss when heat transfer medium is flowed through this coupling part by this, and the support of insulating ceramic particle is arranged, can make sleeve pipe indeformable when vacuum, so bring convenience to use.

Description of drawings

Fig. 1 is the utility model unitary construction schematic diagram;

Fig. 2 is the local enlarged diagram of Fig. 1.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is further described.

As shown in Figure 1 and Figure 2, a kind of tube core of vacuum heat collection pipe connects insulation construction, is tube core 1 connected structure of two thermal-collecting tubes 10, and this tube core 1 is that stainless steel material is made usually.Each thermal-collecting tube 10 also includes members such as glass tube 4 and expansion joint 5 except that tube core 1, the structure of this thermal-collecting tube 10 is to be mature technology, does not add to give at this and gives unnecessary details.

Above-mentioned two thermal-collecting tube tube cores 1 junction is coated with a sleeve pipe 2, this sleeve pipe 2 is to be connected by transition with 1 of tube core, wherein this sleeve pipe 2 is the pair of lamina hollow pipe, it comprises that pipe 21, one outer tube 22 in, two end sockets 23 and one by the vacuum interlayer 24 of managing 21 in this, outer tube 22 and end socket 23 form, are filled with insulating ceramic particle 4 in this interlayer 24; Wherein:

Pipe 21 is that the material that can bear high temperature more than 550 ℃ is made in described, so that it can bear the high temperature of tube core 1; Should can be two semicircle pipes formations by interior pipe 21.

Described outer tube 22 is can bear-50 ℃ to make to 100 ℃ material.This outer tube 22 also can be two semicircle pipes and constitutes, and then combines an integral body with two semicircles of interior pipe formation, so that easy for installation.

Described end socket 23 is to be made by the insulating ceramic material, can play insulation effect.

Described interlayer 24 is a vacuum layer, wherein on outer tube 22, be provided with a mouth 221 of bleeding that communicates with interlayer 24, wherein the sleeve pipe of the utility model will be evacuated interlayer 24 by the mouth 221 of bleeding after tying up to and having loaded the insulating ceramic particle again, to prevent to manage interior heat loss, mouth 221 sealings of will bleeding then get final product.

The particle diameter of described insulating ceramic particle 4 is about 1～5mm, and the diameter of its hole is very little, and diameter is about 0.1～0.5nm, and domestic existing production at present is prior art, does not add at this and gives detailed description.

The utility model design focal point is that its design by being filled with insulating ceramic particle and insulating ceramic end socket in the sleeve pipe is as insulation construction, it has made full use of the insulating ceramic own characteristic, for example have high temperature resistant, performances such as the coefficient of heat conduction is very little, and then make sleeve pipe integral body have insulation effect, can realize the purpose of anti-heat loss when heat transfer medium is flowed through this coupling part by this, and the support of insulating ceramic particle is arranged, can make sleeve pipe indeformable when vacuum, so bring convenience to use.

The above, it only is the utility model preferred embodiment, be not that technical scope of the present utility model is imposed any restrictions, so every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of tube core of vacuum heat collection pipe connects insulation construction, be two thermal-collecting tube tube core (1) connected structures, wherein two tube core junctions are coated with a sleeve pipe (2), between this sleeve pipe (2) and tube core (1) is that transition is connected, it is characterized in that: described sleeve pipe (2) is the pair of lamina hollow pipe, it comprises that pipe (21), an outer tube (22) in, two end sockets (23) and by pipe (21), outer tube (22) and the airtight vacuum interlayers that form of two end sockets (23) (24) in this, are filled with insulating ceramic particle (4) in this interlayer (24).

2, the tube core according to the described vacuum heat collection pipe of claim 1 connects insulation construction, and it is characterized in that: described interlayer (24) is a vacuum layer.

3, the tube core according to the described vacuum heat collection pipe of claim 2 connects insulation construction, it is characterized in that: be provided with a mouth of bleeding (221) that communicates with interlayer (24) on outer tube (22).

4, the tube core according to the described vacuum heat collection pipe of claim 1 connects insulation construction, it is characterized in that: pipe (21) is that the material that can bear high temperature more than 550 ℃ is made in described.

5, connect insulation construction according to the tube core of the described vacuum heat collection pipe of claim 1, it is characterized in that: described outer piping (22) is can bear-50 ℃ to make to 100 ℃ material.

6, the tube core according to the described vacuum heat collection pipe of claim 1 connects insulation construction, and it is characterized in that: described end socket (23) is made by the insulating ceramic material.

7, the tube core according to the described vacuum heat collection pipe of claim 1 connects insulation construction, and it is characterized in that: the particle diameter of described insulating ceramic particle (4) is about 1～5mm.