CN103836829A

CN103836829A - Panel solar heat collection plate core and manufacturing method thereof

Info

Publication number: CN103836829A
Application number: CN201410111547.9A
Authority: CN
Inventors: 严光能; 杨保证
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-25
Filing date: 2014-03-25
Publication date: 2014-06-04

Abstract

A heat collection plate core is a core component of a panel solar water heater, and heat resistance and firmness are important parameters of the solar heat collection plate core. Due to the facts that according to an existing heat collection plate core, a metal plate and heat conduction pipes are welded together through a laser welding method or an ultrasonic welding method, and the multiple conduction pipes are connected with return pipes through a pipe-to-pipe welding method, the problems that the contact surface between the conduction tubes and the heat collection plate is small, binding force is poor, and the number of welding joints of the conduction pipes is large exist in the method. The invention relates to a panel solar heat collection plate core and a manufacturing method of the panel solar heat collection plate core. The heat collection plate core is made of copper or aluminum material. The heat collection plate core comprises a snake-shaped conduction pipe and a heat collection plate provided with grooves matched with the snake-shaped conduction pipe. The conduction pipe and the heat collection plate are connected into a whole through brazing or pouring, and because the conduction pipe is buried in the grooves of the heat collection plate in a coating mode and the conduction pipe and the heat collection plate are connected into a whole, the solar heat collection plate core is firm, small in heat resistance, low in cost and suitable for being produced in a large-batch mode.

Description

A kind of flat panel solar heat collecting plate core and manufacture method thereof

Technical field

The present invention relates to field of solar energy utilization, relate in particular to a kind of flat panel solar heat collecting plate core and manufacture method thereof

Background technology

Along with the development of modern industry, strengthen on the one hand the demand to the energy, cause energy crisis, in the use of conventional energy resource, discharge on the other hand a large amount of carbon dioxides, cause global " greenhouse effects ".For sustainable development, the dependence to conventional energy resource, accelerated development regenerative resource are tried hard to break away from by global various countries.As optimal regenerative resource, solar energy has the feature of " inexhaustible ", utilizes solar energy can prepare hot water, and heating, is the industry of energy-saving and environmental protection.

Plate type solar water heater has many good qualities, it have withstand voltage, the life-span is long, easily forms the exclusive features such as secondary circuit system.Plate type solar water heater easily and Integration of building, is easily arranged on roof, and architect is also melted into it among building than being easier in the time of design.The reproducible utilization rate of plate type solar water heater product material is high.Flat-plate solar heat collector material is taking copper aluminium as main, and recovery utilization rate is high.In addition, the product good in thermal property of plate type solar water heater, security of system is reliable, and effectively daylighting area is large.In recent years along with the development of solar building integrated technology, be outward appearance or on the whole can be with environment coordination no matter people need a kind of, be easy to building and form integrated solar thermal collector.

Heat-collecting plate core is the critical component of plate type solar water heater, is subject in recent years the impact of European high efficiency heat collector technology, and the design of domestic plate type solar heat-collecting plate core and manufacturing technology obtain improving greatly and improving.

Heat-collecting plate core transforms and transferring elements as important heat, and the quality of its structure and performance can directly affect the hot property of flat-plate solar heat collector.Existing most of heat-collecting plate core is by the method for Laser Welding or supersonic welding, metallic plate and heat pipe to be welded together, these two kinds of methods all exist baffle and conduit contact-making surface little, the problems such as adhesion is poor, firm and low thermal resistance is the important parameter of solar heat-collection plate core.

Therefore, how improving heat transfer property and the structural strength of existing flat-plate solar heat collector heat-collecting plate core, is the current anxious technical issues that need to address of those skilled in the art.

Summary of the invention

The object of this invention is to provide a kind of plate core and manufacture method thereof of flat-plate solar heat collector.A plate core for flat-plate solar heat collector, this heat-collecting plate core is made up of copper or aluminum metallic material.It is characterized in that: plate core comprises serpentine duct and have the collecting plate of the groove matching with conduit, conduit and collecting plate are to be connected by soldering or cast realization again, and because conduit is embedded in the groove of collecting plate, both are connected in one.

Compared with prior art, the collecting plate of plate type solar thermal-arrest of the present invention is to be connected with conduit, can produce hardly heat loss, and snakelike thermal-collecting tube is connected with heat collecting sheet, make solar energy impinges after heat collecting sheet, heat energy can be conducted in pipeline efficiently; And whole plate core is the monoblock sheet material being connected, therefore very firm.Meanwhile, conduit of the present invention adopts coiled pipe, and its bending part is arranged at collecting plate outside, can reduce like this welding quantity of conduit.Due to indent, soldering, cast is all now ripe technique, without special equipment, is applicable to producing in enormous quantities.Therefore, solar heat-collection plate core of the present invention is firm, and thermal resistance is little, with low cost, is suitable for producing in enormous quantities.

Brief description of the drawings

Fig. 1 (A) is the generalized section that the conduit of heat-collecting plate core of the present invention is connected with absorber plate.

Fig. 1 (B) is conduit and the absorber plate connected mode schematic diagram of the embodiment of the present invention two

Fig. 2 is the flat-plate solar collector structure front schematic view that the embodiment of the present invention one provides.

Fig. 3 is the manufacturing flow chart that the embodiment of the present invention provides.

Fig. 4 is existing flat-plate solar collector section of structure.

Fig. 5 is the floor map of Fig. 4 flat-plate solar collector.

Icon implication

1, collecting plate 2, conduit 3, welding material

Detailed description of the invention

In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

Embodiment mono-

As Fig. 3 ((A) and (B)

The first step is chosen the aluminium sheet of 0.4-2mm, and through mould, pressing forms many grooves, and single groove shape is as Fig. 3 (A).

The heat pipe of copper pipe or aluminum pipe is curved coiled pipe Fig. 3 (B) by second step, and the shape of heat pipe matches with the groove shapes of absorber plate

The 3rd step is placed on coiled pipe the groove of Fig. 3 (A), by soldering or cast, heat pipe is embedded in groove.

The 4th step completes after parts surface deposition heat absorbing coating above-mentioned, and flat panel solar heat collecting plate core of the present invention completes, as Fig. 2.

Embodiment bis-

The difference of the present embodiment and upper embodiment mono-is the degree of depth of the groove of absorber plate, more shallow than embodiment mono-, half buried, in order to increase the mechanical strength of heat-collecting plate core, on groove, width is than the large 0.05-0.2MM of conduit external diameter, in welding, weld metal is penetrated in the middle of both gaps like this.Follow-up process is the same with embodiment mono-.The difference of two embodiment can be with reference to please refer to Fig. 1 (A) and (B),

Above plate type solar energy heat collector plate core provided by the present invention and manufacture method thereof are described in detail.Applied concrete case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand core concept of the present invention.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.

Claims

1. flat panel solar heat collecting plate core and a manufacture method thereof, belong to field of solar energy utilization, comprises collecting plate and conduit, it is characterized in that: collecting plate has the groove matching with conduit, and conduit is embedded in groove; Collecting plate and conduit form one by soldering or cast.

2. plate core according to claim 1 and manufacture method thereof, is characterized in that, heat pipe is hosepipe, and its bending is arranged at outside collecting plate.

3. plate core according to claim 1 and manufacture method thereof, is characterized in that, described groove is that rectangle or its bottom are circular arc type.

4. plate core according to claim 1 and manufacture method thereof, is characterized in that, the groove of collecting plate is for to form by pressing.

5. plate core according to claim 1 and manufacture method thereof, is characterized in that, the melting point metal of soldering or cast is all lower than collecting plate or conduit.