CN201259336Y

CN201259336Y - Novel flat-plate solar heat collector

Info

Publication number: CN201259336Y
Application number: CNU2008201090908U
Authority: CN
Inventors: 赵耀华; 刁彦华; 张楷荣
Original assignee: Individual
Current assignee: Zhang Kairong; Zhao Yaohua; Nanjing Ecoway Energy Technology Co Ltd
Priority date: 2008-07-08
Filing date: 2008-07-08
Publication date: 2009-06-17
Anticipated expiration: 2018-07-08

Abstract

The utility model provides a novel flat-plate solar heat collector, which comprises a flat-plate solar heat collector framework. The flat-plate solar heat collector is characterized in that a fin is arranged in the framework of the flat-plate solar heat collector; the fin is positioned between the upper end and the lower end of the framework; the fin divides the internal space of the framework into a plurality of poroid channels; the internal part of the framework adopts a vacuum structure, and working medium is filled in the internal part of the framework; heat pipe effect is naturally formed after working medium is filled in each channel; one end of the flat-plate solar heat collector is arranged in a water storage tank; and condensing and heat releasing are performed to the water stored in the water storage tank to prepare hot water. The flat-plate solar heat collector has the advantages of simple structure, reliable operation, low cost, maintenance free, high heat-collecting efficiency, freeze proof and energy saving.

Description

The novel plate type solar heat collection device

Technical field

The utility model relates to technical field of solar utilization technique, particularly a kind of novel flat-plate collector.

Background technology

The exhaustive exploitation of traditional energy such as coal and oil and use causes the day by day exhausted of this non-renewable biomass energy, and solar energy just more and more is subjected to the attention of current society as reproducible environmental protection new forms of energy.

The key areas that solar thermal collector utilizes as solar energy, for other solar utilization technique, it is not only simple in structure, with low cost, be convenient to safeguard, and dependability height, after the once mounting, need not to consume any extrinsic motive, can provide a large amount of hot water, greatly make things convenient for, improved people's quality of life for people's life, activity in production.

At present, the solar thermal collector of widespread usage mainly comprises following four kinds on the market: flat, electron tubes type, heat pipe-type, U type tubular type.Four types respectively have pluses and minuses, all are that the user selectes according to local climate feature and required hot water temperature, purposes generally.

The advantage of flat type solar heat collector is very outstanding: the high board-like structure of metal tube that adopts of the thermal efficiency, and intensity, life-span and functional reliability are all very good, can be non-maintaining, working life can reach 15 years, has very high cost performance; Its topmost shortcoming is exactly not freeze proof, be positioned at the user of southern area for Guangdong, Fujian, Hainan, Guangxi, Yunnan etc., because this area's free of frost in winter weather, owing to need not consider freeze proof problem in winter, the user of this area adopts flat type solar heat collector the most suitable.

The electron tubes type solar thermal collector had both had freeze proof characteristic, and cost performance is also than heat pipe-type, U type tube type solar collector height, and its major defect is: not pressure-bearing, easily scaling, easily explosion; User for the Changjiang river, area, the Huanghe valley has the frost weather winter, and its general temperature is higher than-20 ℃, therefore can select the electron tubes type solar thermal collector for use.

Hot pipe type solar heat collector can be resisted-40 ℃ low temperature, this is that flat type solar heat collector and electron tubes type solar thermal collector are incomparable, but the cost of hot pipe type solar heat collector is very high, and the thermal efficiency is very low, therefore three provinces, the Inner Mongol, Xinjiang, Tibet region northeastward, because this area's winter temperature is extremely low, the user in the one's respective area just must select hot pipe type solar heat collector.

For the hot water supply of industrial use, selecting preferably is the flat solar water heater.Industry hot water requirement is big, needs very large-area solar thermal collector, but requires that heat collector is not fragile, the easy care pressure-bearing, the plate type solar collection

Hot device has significant superiority in this respect, and electron tubes type, heat pipe-type, U type tube type solar collector all are unsuitable for this large scale industry and use.For example, the electron tubes type solar thermal collector has 8 ‰ breakage rate every year on average, and in whole collecting system, breaking of a pipe will cause the paralysis of whole system.

In sum, the various solar thermal collectors of using exist such or such defective on freezing tolerance, the thermal efficiency, functional reliability at present, thereby making to use is subjected to bigger restriction, has reduced popularization and development that solar energy utilizes.

The utility model content

At defective that exists in the prior art and deficiency, the purpose of this utility model is to provide a kind of novel flat type solar heat collector with high collection effciency with extensive practicality, and solar thermal collector of the present utility model has had the advantage of hot pipe type solar heat collector and flat type solar heat collector concurrently.

The technical solution of the utility model is as follows:

A kind of novel plate type solar heat collection device, comprise the flat-plate collector framework, it is characterized in that: be provided with fin in the framework of described flat-plate collector, described fin is between the upper and lower end face of framework, described fin is separated into some poroid passages with the inside of frame space, and framework inside is vacuum structure, is filled with working medium in each passage, tabular heat collector one end is arranged in the storage tank, condensation heat release in the water storage in water tank.

Described fin for that make by hard material, that have the penetrating hole of plurality of integral in it, have a network structure with the suitable profile of plate frame interior shape.

Described fin is a W shape corrugated board chip architecture, and each W-shaped peak paddy position and frame inner wall join, and forms the triangle duct that is arranged alternately.

Each duct path that described fin forms is that an end is open at the framework inner chamber, the sealing of joining of the other end and frame inner wall.

Each its two ends of duct path that described fin forms are all open in the framework inner chamber, and each duct path communicates at two ends in the framework inner chamber.

Described each framework that includes inner fins is a heat absorbing units, or the framework that comprises inner fins respectively more than 2 or 2 is common forms a heat absorbing units, and described heat collector can link to each other the condensing heat-exchange end of several heat absorbing units with total hot-water heating system.

Described fin and framework connection are all by integral braze-welded being structure as a whole in the soldering oven.

Described flat plate collector arranged outside has light-passing board

Described flat plate collector bottom is provided with heat insulation layer.

Technique effect of the present utility model:

The utility model has some fins of arranging duct or conduit in the same way by being provided with in flat framework, in the plate frame after application of vacuum the can refrigeration working medium, refrigeration working medium is in duct or conduit that fin forms, naturally form the heat pipe effect, the plate frame end at the condensation end place of heat pipe is arranged in the storage tank, and described condensation end carries out condensing heat-exchange to make hot water in the water storage of water tank.This solar heat collection method has the high efficiency of full platen surface thermal-arrest on the one hand, the characteristic of the efficient thermotransport of inner heat pipe, make this flat plate collector have high efficiency, anti-low temperature, and wing has good characteristics such as augmentation of heat transfer and very big stiffened flat plate heat pipe bearing strength in the flat-plate heat pipe, this flat type solar heat collector has the structural strength height, non-maintaining advantage, moreover but the framework internal cavity is separated into some a large amount of open type pore passage structures by inner fin, by can refrigeration working medium after the application of vacuum, thereby make each duct in the inner chamber all form heat pipe structure, this heat pipe structure has then possessed the freeze proof characteristic of hot pipe type solar heat collector, thereby make solar thermal collector of the present utility model not only possess the advantage of flat type solar heat collector, and had the freeze proof characteristic of hot pipe type solar heat collector concurrently, make solar thermal collector of the present utility model have range of application and collecting efficiency more widely, combine flat and advantage heat pipe type heat collector, eliminated defective and deficiency separately simultaneously, had simple in structure, reliable operation, with low cost, non-maintaining, the collecting efficiency height, freeze proof characteristics.

In order further to improve the freeze proof characteristic of flat type solar heat collector of the present utility model, can also adopt freeze proof refrigeration working medium with further raising anti-freezing property, make flat type solar heat collector of the present utility model have bigger freeze proof applicability.

Adopt built-in fin in the framework, fin can play the effect of support reinforcing to framework, can further improve the intensity of frame structure, on the contrary, adopt plate armature of the present utility model, can further reduce the sheet metal thickness of frame structure, just reduce the material consumption of framework, reduce the material cost of product, have energy-saving and cost-reducing effect.

Description of drawings

Shown in Figure 1 is a kind of example structure schematic diagram of the utility model solar thermal collector;

Shown in Figure 2 is a kind of example structure schematic diagram of the utility model solar thermal collector;

Shown in Figure 3 is a kind of modularization example structure schematic diagram of the utility model solar thermal collector;

Shown in Figure 4 is a kind of modularization example structure schematic diagram of the utility model solar thermal collector;

Shown in Figure 5 is the dull and stereotyped internal cross section structural representation of the utility model solar thermal collector;

Shown in Figure 6 is the part enlarged diagram of the dull and stereotyped internal cross section structure of the utility model solar thermal collector;

Shown in Figure 7 is the structural representation of the dull and stereotyped interior heat pipe both ends open of the utility model solar thermal collector;

Shown in Figure 8 is the open structural representation of dull and stereotyped interior heat pipe one end of the utility model solar thermal collector.

The specific embodiment

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

Be illustrated in figure 1 as the structural representation of solar thermal collector of the present utility model.

Solar thermal collector comprises absorber plate 1, heat exchanger 2 and import and export---the water pipe 3 and the water pipe 4 of slab construction in the present embodiment, wherein the endotherm section 12 of absorber plate 1 is exposed on the sunny side is provided with to absorb sunray, heat release section 13 is arranged in the heat exchanger 2, heat release section 13 is the condensation heat release in heat exchanger 2, and the water storage in the heat exchanger 2 is heated.

The side that endotherm section 12 faces south is the extinction face, its heat absorbing coating 8 that is provided with energy efficient absorption solar energy is (referring to Fig. 5, Fig. 6), to improve heat absorption efficiency as far as possible, be provided with fin 11 in the plate frame of absorber plate 1, fin 11 is between the upper and lower end face of framework, fin shown in the figure 11 is for having the plate of W shape ripple struction, the peak valley position of the ripple struction of fin 11 joins with the plate inwall of absorber plate 1 respectively, each peak valley on the fin 11 all and form a poroid pipeline between the wooden partition, whole fin 11 is separated into some poroid pipelines with the inside of frame space, framework inside is vacuum structure, and be filled with refrigeration working medium, filling is in an end of each poroid passage respectively for working medium, and these poroid passages are with regard to the corresponding heat pipe that becomes.

The operation principle of present embodiment: endotherm section 12 absorbs solar radiant heat, working medium heat absorption evaporation in the heat pipe, high-temperature vapour enters endotherm section 12 by each pipeline respectively and carries out the condensation heat release, with heat exchanger 2 in the water heat-shift after be condensed into liquid and flow back to absorber plate 1 bottom, liquid heat absorption evaporation again ... so go round and begin again, just the radiations heat energy that absorber plate 1 is absorbed can be passed to continuously the water in the heat exchanger 2, thereby will reach the purpose of utilizing solar radiation heat.

Fin 11 also can be made the reticulate body with through-hole structure, and the inwall of itself and absorber plate 1 joins, and it is inner and form some passage pipelines respectively with the wooden partition adjacent, also forms the integral heat pipe structure after the can working medium.

For fin 11 formed each pipeline, if having a large amount of through holes on the tube wall that forms each pipeline, then each pipeline is interconnected, and the inner chamber of whole absorber plate 1 forms a total heat pipe structure.

Fin 11 is formed each heat pipe 14 in absorber plate 1, both can seal an end between heat pipe 14 two ends and absorber plate 1 wooden partition and keep other end opening, be heat pipe end 16 sealings, heat pipe end 15 is interconnected, thereby forms separate between each heat pipe (as Fig. 8); Also can adopt each heat pipe two

ends

15,16 all open, thereby the two ends of each heat pipe are communicated with mutually, thereby can be used as a total heat pipe structure (as Fig. 7) between each heat pipe again.

Heat exchanger 2 can adopt tubular structure, as present embodiment (as Fig. 1), also can adopt the water tank type structure, heat exchanger 5 as shown in Figure 2, and it is provided with upper hose 6 and outlet pipe 7.

In order further to improve the thermal-arrest usefulness of the utility model heat collector, absorber plate 1 heat absorbing side top is provided with the light-passing board 9 that prevents heat leakage, light-passing board 9 is made by the material with good printing opacity and fine heat-insulating property, be provided with air layer between light-passing board 9 and the absorber plate 1, absorber plate 1 opposite side is provided with heat insulation layer 10.Heat insulation layer 10 is made by the material with well insulated ability, and for rigidity and the intensity that increases whole device, heat insulation layer can select for use polytetrafluoroethylmaterial material to make.The cross-sectional structure of absorber plate as shown in Figure 5

Absorber plate 1 can adopt aluminum material, and the hydraulic fluid of absorber plate 1 is suitable working medium.

Absorber plate also can adopt modularized design, absorber plate module 8 as shown in Figure 3.Each modular unit all can comprise the heat insulation layer 10 at air blanketing between glass plate 9, glass plate 9 and absorber plate 1 upper surface and place, absorber plate lower surface.

This absorber plate 1 that has a plurality of fine conduits, absorber plate 1 can utilize REFRIGERATION SYSTEM DRIVEN BY CAPILLARY FORCE to make every effort to promote the steam of evaporator section is moved to condensation segment faster, simultaneously also can impel condensate liquid to turn back to evaporator section faster evaporates once more, circulation successively, clearly, this absorber plate structure has than the existing bigger collecting efficiency of common thermal-arrest plate.

The above only is a preferred implementation of the present utility model.For a person skilled in the art, can also make a lot of modification and improvement, but these modification and improvement all will fall into protection domain of the present utility model according to essence of the present utility model.

Claims

1, a kind of novel plate type solar heat collection device, comprise the flat-plate collector framework, it is characterized in that: be provided with fin in the framework of described flat-plate collector, described fin is between the upper and lower end face of framework, described fin is separated into some poroid passages with the inside of frame space, and framework inside is vacuum structure, is filled with working medium in each passage, tabular heat collector one end is arranged in the storage tank, condensation heat release in the water storage in water tank.

2, novel plate type solar heat collection device as claimed in claim 1 is characterized in that: described fin for that make by hard material, that have the penetrating hole of plurality of integral in it, have a network structure with the suitable profile of plate frame interior shape.

3, novel plate type solar heat collection device as claimed in claim 1 is characterized in that: described fin is a W shape corrugated board chip architecture, and each W-shaped peak paddy position and frame inner wall join, and forms the triangle duct that is arranged alternately.

4, novel plate type solar heat collection device as claimed in claim 1 is characterized in that: each duct path that described fin forms is that an end is open at the framework inner chamber, the sealing of joining of the other end and frame inner wall.

5, novel plate type solar heat collection device as claimed in claim 1 is characterized in that: each its two ends of duct path that described fin forms are all open in the framework inner chamber, and each duct path communicates at two ends in the framework inner chamber.

6, novel plate type solar heat collection device as claimed in claim 1, it is characterized in that: described each framework that includes inner fins is a heat absorbing units, or the framework that comprises inner fins respectively more than 2 or 2 is common forms a heat absorbing units, and described heat collector can link to each other the condensing heat-exchange end of several heat absorbing units with total storage tank.

7, novel plate type solar heat collection device as claimed in claim 1 is characterized in that: described fin and framework connection are all by integral braze-welded being structure as a whole in the soldering oven.

8, novel plate type solar heat collection device as claimed in claim 1 is characterized in that: described flat plate collector arranged outside has light-passing board.

9, novel plate type solar heat collection device as claimed in claim 8 is characterized in that: described flat plate collector bottom is provided with heat insulation layer.