CN208794751U

CN208794751U - A kind of medium temperature solar energy heat conducting pipe device

Info

Publication number: CN208794751U
Application number: CN201820585291.9U
Authority: CN
Inventors: 何斌
Original assignee: Dongguan Sun Energy Technology Co Ltd
Current assignee: Dongguan Sun Energy Technology Co Ltd
Priority date: 2018-04-23
Filing date: 2018-04-23
Publication date: 2019-04-26
Anticipated expiration: 2028-04-23

Abstract

The utility model relates to medium temperature solar energy heat conducting pipe product technical field, especially a kind of medium temperature solar energy heat conducting pipe device.A kind of medium temperature solar energy heat conducting pipe device includes: heat conducting pipe, the inner tube for working fluid channel, limit fastener, U-bend folding part has been bent to form in the inner tube, in the U-bend folding part insertion heat conducting pipe, and constitute U-bend folding part two pipelines, between be fixedly connected by limit fastener, two pipelines of U-bend folding part are enabled by the support of limit fastener, fit in the inner wall of heat conducting pipe respectively.The utility model by adopting the above technical scheme after, the U-bend folding part of inner tube is embedded in thermally conductive inside pipe wall, simultaneously between U-bend folding part and heat conducting pipe not by the way of being welded and fixed, but two pipelines of U-bend folding part are enabled to be close to the inner wall of heat conducting pipe by limit fastener, even if U-bend folding part generates the deformation expanded with heat and contract with cold in this way, this stress will not be conducted to heat conducting pipe, thus the bending deformation of the heat conducting pipe avoided, it is ensured that vacuum tube using safe in heat collector.

Description

A kind of medium temperature solar energy heat conducting pipe device

Technical field

The utility model relates to medium temperature solar energy heat conducting pipe product technical field, especially a kind of medium temperature solar energy heat conducting pipe Device.

Background technique

A key areas of the solar thermal collector as Solar use, relative to other solar utilization techniques Speech, it is not only of simple structure and low cost, convenient for safeguarding, and also use reliability is high, and it is any without consuming after once mounting Extrinsic motive can provide a large amount of hot water for people's lives, production activity, greatly convenient, raising people's lives quality.

Evacuated collector tube structure is mostly used in current solar thermal collector, and one is usually provided in evacuated collector tube Then the U-tube of working fluid channel is embedded in big aluminum pipe inner wall by thermally conductive big aluminum pipe.Due to being often subject to cooling thermal impact, can draw Contraction, the expansion for playing U-tube, cause U-tube to be bent, and the deformation pressure that the bending of U-tube generates is conducted to big aluminum pipe inner wall, greatly Aluminum pipe finally conducts stress to vacuum tube, and vacuum tube is enabled to burst.In order to solve this defect, present inventors have proposed following skills Art scheme.

Utility model content

Technical problem to be solved in the utility model, which is that, to be overcome the shortcomings of to provide one kind present in current product Can autobalance U-tube stress, the medium temperature solar energy heat conducting pipe device improved service life.

In order to solve the above-mentioned technical problem, the utility model adopts the technical scheme that a kind of medium temperature solar energy heat conducting Pipe device includes: heat conducting pipe, the inner tube for working fluid channel, limit fastener, has been bent to form U-bend folding in the inner tube Portion, in the U-bend folding part insertion heat conducting pipe, and constitute U-bend folding part two pipelines, between it is solid by limit fastener Fixed connection enables two pipelines of U-bend folding part by the support of limit fastener, fits in the inner wall of heat conducting pipe respectively.

Furthermore, in above-mentioned technical proposal, the limit fastener include: upper detent, lower detent and be located at it is upper, Lower detent, between support plate, the limit fastener be located at U-bend folding part two pipelines, between, wherein upper detent is resisted against pipeline Inside and to pipeline formed support；Lower detent is resisted against the inner wall of another pipeline, and is formed and supported to the pipeline.

Furthermore, in above-mentioned technical proposal, the upper detent and lower detent are in the arc with pipeline, cooperation.

It has been bent to form most U-bend folding parts in the inner tube, has been inserted into heat conducting pipe on each U-bend folding part, And it is connected between two U-bend folding parts by connecting tube.

When using the utility model, the utility model is placed in solar energy medium temperature evacuated collector tube, evacuated collector tube is received The solar thermal energy of collection passes to heat conducting pipe first, and then passes to the U-bend folding part of inner tube again, and heat the two of U-bend folding part Working medium in pipeline is exported solar heat to need to use position by working medium circulation.Even if because cold during Working fluid flow Thermal shock causes two pipelines of U-bend folding part locally to expand with heat and contract with cold, but because two pipelines of U-bend folding part pass through in limit fastener Embedded in the inside of heat conducting pipe.When two pipelines of U-bend folding part generate dilation, it can generate sliding inside heat conducting pipe Displacement, without heat conducting pipe bending deformation is caused, also avoids " bombing " phenomenon of vacuum tube because of cooling thermal impact.It greatly enhances The stability and reliability of heat collector.

The utility model is after adopting the above technical scheme, it has the advantages that in the utility model with respect to existing product The U-bend folding part of inner tube is embedded in thermally conductive inside pipe wall, while not using the side being welded and fixed between U-bend folding part and heat conducting pipe Formula, but enable two pipelines of U-bend folding part be close to the inner wall of heat conducting pipe by limit fastener, even if U-bend folding part is enabled to produce in this way The raw deformation expanded with heat and contract with cold, will not conduct this stress to heat conducting pipe, thus the bending deformation of the heat conducting pipe avoided, it is ensured that collection Vacuum tube using safe in hot device.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the cross-sectional view in Fig. 1 at A.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and examples.

As shown in FIGS. 1 and 2 the utility model is a kind of medium temperature solar energy heat conducting pipe device comprising: heat conducting pipe 1 is used for The inner tube 2 of working fluid channel, limit fastener 3.

The heat conducting pipe 1 uses the biggish aluminum pipe of bore, is used to receive the heat of vacuum tube transmitting.

The inner tube 2 is using the lesser copper pipe of bore, aluminum pipe or stainless steel tube.As needed, curved in inner tube 2 Folding is formed with multiple U-bend folding parts 20.As shown in Figure 1, there are four U-bend folding part 20, this four U-shapeds for setting altogether in the present embodiment Bending part 20 will be inserted into corresponding four heat conducting pipes 1, be connected between two U-bend folding parts 20 by connecting tube 23.Thermally conductive use After working medium is entered by the import of inner tube 2, first U-bend folding part 20 is initially entered, is then entered again by connecting tube 23 next A U-bend folding part 20, until working medium is flowed out by the outlet of inner tube 2.

The U-bend folding part 20 is inserted into the heat conducting pipe 1, and constitutes two pipelines 21,22 of U-bend folding part 20 Between be fixedly connected by limit fastener 3, enable two pipelines 21,22 of U-bend folding part 20 paste respectively by the support of limit fastener 3 Together in the inner wall of heat conducting pipe 1.For better stable U-bend folding part 20, in corresponding two pipelines 21,22 patch of the inner wall of heat conducting pipe 1 Coincidence, which is set, has been separately formed arc-shaped recess portion 11,12.

As shown in connection with fig. 2, the limit fastener 3 include: upper detent 31, lower detent 32 and be located at upper and lower detent 31, Support plate 33 between 32, the limit fastener 3 are located between two pipelines 21,22 of U-bend folding part 20, wherein upper detent 31 against Pipeline 21 inside and to pipeline 21 formed support；Lower detent 32 is resisted against the inner wall of another pipeline 22, and to the pipeline 22 Form support.Since pipeline 21,22 uses circular pipe, so, in order to preferably position, the upper detent 31 and lower detent 32 in the arc cooperated with pipeline 21,22.Certainly, can also by two pipelines 21,22 directly by welding with upper detent 31 It is welded with lower detent 32.

When using the utility model, the utility model is placed in solar energy medium temperature evacuated collector tube, evacuated collector tube is received The solar thermal energy of collection passes to heat conducting pipe first, and then passes to the U-bend folding part of inner tube again, and heat the two of U-bend folding part Working medium in pipeline is exported solar heat to need to use position by working medium circulation.Even if because cold during Working fluid flow Thermal shock causes two pipelines of U-bend folding part locally to expand with heat and contract with cold, but because two pipelines of U-bend folding part pass through in limit fastener Embedded in the inside of heat conducting pipe.When two pipelines of U-bend folding part generate dilation (axial elongation or shortening), it can led Inside heat pipe generates slide displacement, without heat conducting pipe bending deformation is caused, also avoids vacuum tube " frying because of cooling thermal impact Pipe " phenomenon.Greatly enhance the stability and reliability of heat collector.

It certainly, is not to limit the utility model and implement the foregoing is merely specific embodiment of the utility model Range, all equivalent change or modifications done according to structure, feature and principle described in present utility model application the scope of the patents, should all wrap It includes in present utility model application the scope of the patents.

Claims

1. a kind of medium temperature solar energy heat conducting pipe device comprising: heat conducting pipe (1), for the inner tube (2) of working fluid channel, limiting card It detains (3), it is characterised in that:

U-bend folding part (20) are bent to form in the inner tube (2), the U-bend folding part (20) the insertion heat conducting pipe (1) It is interior, and constitute and connected between two pipelines (21,22) of U-bend folding part (20) by limit fastener (3), pass through limit fastener (3) support enables two pipelines (21,22) of U-bend folding part (20) fit in the inner wall of heat conducting pipe (1) respectively.

2. a kind of medium temperature solar energy heat conducting pipe device according to claim 1, it is characterised in that: the limit fastener It (3) include: upper detent (31), lower detent (32) and the support plate (33) between upper and lower detent (31,32), the limit Buckle (3) is located between two pipelines (21,22) of U-bend folding part (20), wherein upper detent (31) are resisted against the interior of pipeline (21) Side simultaneously forms support to pipeline (21)；Lower detent (32) is resisted against the inner wall of another pipeline (22), and to the pipeline (22) formation Support.

3. a kind of medium temperature solar energy heat conducting pipe device according to claim 2, it is characterised in that: the upper detent (31) It is in the arc cooperated with pipeline (21,22) with lower detent (32).

4. a kind of medium temperature solar energy heat conducting pipe device described in any one of -3 according to claim 1, it is characterised in that: described Inner tube (2) on be bent to form most U-bend folding parts (20), be inserted into heat conducting pipe (1) on each U-bend folding part (20) In, and connected between two U-bend folding parts (20) by connecting tube (23).