CN202421604U

CN202421604U - Two-dimensional adjustable solar groove type converging lens

Info

Publication number: CN202421604U
Application number: CN2011205209566U
Authority: CN
Inventors: 李明; 凌德力; 陈飞; 季旭
Original assignee: Yunnan Normal University
Current assignee: Yunnan Normal University
Priority date: 2011-12-14
Filing date: 2011-12-14
Publication date: 2012-09-05
Anticipated expiration: 2021-12-14

Abstract

The utility model provides a two-dimensional adjustable solar groove type converging lens, comprising an ultrathin silver lens with a high reflectivity. A heating temperature is controlled through heating EVA (Ethylene Vinyl Acetate) glue; glasses and a metal plate are tightly stuck together by a pressure bearing machine; the metal plate is fixed on a high-precision groove-shaped bracket; the groove-shaped bracket is further provided with a device with a fine tuning function and the device is composed of a supporting plate, a guide rail, a screw rod with a spherical fine wire and a fixing nut; the screw rod with the spherical fine wire can facilitate rotating a handle so as to achieve the aim of adjusting a surface shape, the surface of the supporting plate is conveniently adjusted to be tangent with the metal plate to guarantee the uniform stressing. The distribution of focal strips is analyzed and the screw rod with the spherical fine wire on the guide rail is moved to be fixed on an accurate position; and then the handle is rotated to carry out fine tuning so as to correct the surface shape of the lens. According to the utility model, the two-dimensional adjustable solar groove type converging lens is designed to greatly improve the solar heat utilization temperature; and the two-dimensional adjustable solar groove type converging lens has the advantages of simple structure, capability of finely tuning a lens surface, convenience for transportation, durability and capability of being produced in a large scale.

Description

A kind of two-dimensional adjustable solar groove type condenser

Technical field

The utility model relates to a kind of condenser, and particularly a kind of two-dimensional adjustable solar groove type condenser belongs to solar energy heat utilization field.

Background technology

The world today, because a large amount of petroleum resources are consumed, the whole world is faced with energy crisis, simultaneously because the use of fossil feedstock causes greenhouse effect thereby discharged a large amount of carbon dioxides.At present in this case, sun power has obtained widespread use as a kind of inexhaustible renewable and clean energy resource.In the product of solar thermal utilization; The most universal is solar water heater; People's daily life hot water only can be provided, and the current industrial hear rate accounts for 50%～70 % of industrial energy consumption, industrial heat temperature major part is between 80 ℃～300 ℃; Generally be no more than 300 ℃, therefore be necessary to improve the temperature of solar thermal utilization.Though sun power ubiquity; But the solar radiation energy flux density that arrives the earth is lower; Obtain the higher solar radiant energy of energy flux density, can adopt the optically focused means to obtain higher energy flux density, thereby effectively improve energy synthesis conversion efficiency and expanded application field.Outside the heat extraction generating; The heat energy that obtains behind the optically focused can also be used for industry and use heat with life, like the high-temperature shaping in the textile printing and dyeing industry, high temperature figure layer, high-temperature dyeing, the throwing process of tobacco business; Solar airconditioning refrigeration, and other need in the occasion of high temperature fluid working medium.Hot bending process is adopted in moulding to present condenser basically, and mould and die accuracy is required height, and energy consumption is big; Mirror is more thick and heavy; Face shape can not be adjusted, the more high unfavorable factor of cost, and the utility model designs a kind of two-dimensional adjustable solar groove type condenser; Improved the solar thermal utilization temperature greatly, and simple in structure, minute surface is fine-tuning, convenient transportation, durable in use.

Summary of the invention

The utility model purpose is to overcome the deficiency of existing solar energy condenser lens, provide a kind of simple in structure, quality is light and handy, minute surface is fine-tuning, convenient transportation, long-lived high-precision sun can the slot light collection mirrors, improved the temperature of solar thermal utilization greatly.

The utility model is accomplished through following technical scheme: a kind of two-dimensional adjustable solar groove type condenser; The silver mirror that comprises ultra-thin high reflectance; Tightly be glued together through EVA glue and sheet metal face, be fixed on the high precision grooved support, the device that has fine adjustment function also has been installed on the grooved support; This device by back up pad, guide rail, have spherical filament screw rod and hold-down nut is formed; Have spherical filament screw rod and can make things convenient for handle rotation to reach the purpose of adjustment face shape, it is tangent with sheet metal conveniently to adjust the back up pad face, guarantees stressed even.Distribute through analyzing burnt band, the spherical filament screw rod on the moving guide rail is fixed to appropriate position, and rotary handle is finely tuned again, proofreaies and correct the face shape of mirror.

The utility model possesses outside the function of general solar energy condenser lens; Special feature is that thin glass can solve heavy sheet glass and about 130 ℃, be difficult to crooked problem; The back side of mirror is coated with the argent of high reflectance on the parabolic lens; Silver has good reflectivity, and is more much better than the general specular reflectance of aluminizing, thereby reduced the loss of direct reflection.What mirror adopted is the thin glass of ultrawhite, and its effect has three: one, and the use of ultra-clear glasses is the transmitance that has increased sunray, has reduced the loss of sunray when passing glass; The 2nd, the thickness of thin glass is between 0.50～1.10mm, and the loss of minimizing sunshine further can be known by the optical correlation theory, and sunshine is when passing transparency material, and light path is big more, and sunshine absorbs many more, and light path is more little, and sunshine absorbs few more; Three are to use ultra-thin glass also to alleviate the deadweight of whole device, thereby make whole device lightly flexible.Adopt heating EVA glue, control its heating-up temperature, tightly be bonded together by silver mirror and sheet metal through the pressure-bearing machine; Again sheet metal is fixed on the high precision grooved support; The device that has fine adjustment function also has been installed on the grooved support, this device by back up pad, guide rail, have spherical filament screw rod and hold-down nut is formed, have spherical filament screw rod and can make things convenient for handle to rotate to reach the purpose of adjustment face shape; Can also conveniently adjust the back up pad face and sheet metal tangent, guarantee stressed evenly.Distribute through analyzing burnt band, the spherical filament screw rod on the moving guide rail is fixed to appropriate position, and rotary handle is finely tuned again, proofreaies and correct the face shape of mirror.

The utility model compared with prior art has following advantage:

1, condenser has adopted ultrawhite to approach glass silvering, improves the reflectivity of condenser, reduces the loss of luminous energy.

2, adopt fusion EVA glue, control its heating-up temperature, through the pressure-bearing machine that mirror and sheet metal is tightly bonding, compare simple and energy-conservation with hot bending technology.

3, adopt micromatic setting, can finely tune mirror face shape, obtain better Jiao and be with, it is higher to make this condenser and other compare precision.

4, the utility model apparatus structure is compact, and precision is high, is easy to install, and is easy to debugging, is easy to large-scale production, can be widely used among the heat utilization field.

Description of drawings

Fig. 1 is the utility model front elevation;

Fig. 2 is the parabolic lens structural drawing;

Fig. 3 is the utility model side view;

Fig. 4 is two-dimentional micromatic setting structural drawing.

Embodiment:

A kind of two-dimensional adjustable solar groove type condenser; Silver mirror (6) like Fig. 1, Fig. 2, ultra-thin high reflectance shown in Figure 3; The thin glass of special feature can solve heavy sheet glass and about 130 ℃, be difficult to crooked problem, and the back side of the last mirror of parabolic lens (1) is coated with the argent of high reflectance, and silver has good reflectivity; The specular reflectance of aluminizing than general is much better, thereby has reduced the loss of direct reflection.What mirror adopted is the thin glass of ultrawhite, and its effect has three: one, and the use of ultra-clear glasses is the transmitance that has increased sunray, has reduced the loss of sunray when passing glass; The 2nd, the thickness of thin glass is between 0.50～1.10mm, and the loss of minimizing sunshine further can be known by the optical correlation theory, and sunshine is when passing transparency material, and light path is big more, and sunshine absorbs many more, and light path is more little, and sunshine absorbs few more; Three are to use ultra-thin glass also to alleviate the deadweight of whole device, thereby make whole device lightly flexible.Adopt heating and melting EVA glue (7); Control its heating-up temperature, silver mirror (6) and sheet metal (8) face tightly are glued together, be fixed on the high precision grooved support (4) through the pressure-bearing machine; The parabolic of this grooved support (4) adopts cut; To guarantee its precision, 3 supporting traverses (2) have also been installed at sheet metal (8) back side, guarantee the face shape of sheet metal (8).Also installed on the last grooved support as shown in Figure 4 (4) and had micromatic setting (9); This device by back up pad (10), guide rail (3), have spherical filament screw rod (13) and hold-down nut (12) is formed; Having spherical filament screw rod (13) can make things convenient for handle (11) rotation to reach the purpose of adjustment face shape; It is tangent with sheet metal (8) conveniently to adjust back up pad face (10), guarantees stressed even.Distribute through analyzing burnt band (5), the spherical filament screw rod (13) on the moving guide rail (3) is fixed to appropriate position, and rotary handle (11) is finely tuned again, proofreaies and correct the face shape of parabolic lens (1).

Claims

1. two-dimensional adjustable solar groove type condenser comprises tightly being glued together the silver mirror of ultra-thin high reflectance through EVA glue and sheet metal face, is fixed on the high precision grooved support, and the device that has fine adjustment function also has been installed on the grooved support.

2. a kind of two-dimensional adjustable solar groove type condenser according to claim 1 is characterised in that and adopts EVA glue, lets the very thin even bonding coat of formations between mirror and the sheet metal, and the assurance minute surface is smooth indeformable.

3. a kind of two-dimensional adjustable solar groove type condenser according to claim 1 is characterised in that high-precision paraboloidal support, guarantees that sheet metal accurately is fitted on the paraboloidal support, lets minute surface form needed parabola.

4. a kind of two-dimensional adjustable solar groove type condenser according to claim 1 is characterised in that the employing micromatic setting, support plate upper surface smooth in this device; The back up pad lower surface has spherical groove; Head is put in the spherical groove in the spherical filament screw rod, and back up pad can be adjusted the arbitrarily angled sheet metal face of being close to, and spherical filament screw rod is fixed on the guide rail through nut; Can carry out move left and right by the degree of tightness nut; Through the handle rotation, the control back up pad moves up and down, and reaches the purpose of fine setting minute surface.