Arrange compound cool down device line-focusing solar strengthening thermal-collecting tube

Arrange compound cool down device line-focusing solar strengthening thermal-collecting tube

  • CN 102,393,094 B
  • Filed: 12/09/2011
  • Issued: 11/25/2015
  • Est. Priority Date: 12/09/2011
  • Status: Active Grant
First Claim
Patent Images

1. arrange cool down line-focusing solar strengthening thermal-collecting tube cuts pipe by outer glass tube, glass, metal inner pipe, metal transfer ring, metal end, iron nickel can cut down part, unloading bellows, pipe connecting piece, compound the are cooled down device of device, blast pipe, spoiler, glass sealing material, plumbous hot-press sealing end protective device of compound to form, it is characterized in that:

  • part can be cut down by iron nickel, discharge mechanism that metal transfer ring, metal end, unloading bellows, pipe connecting piece are sequentially welded to form is arranged on thermal-collecting tube two ends;

    Discharge mechanism divides external unloading wave line pipe or built-in unloading bellows two kinds of unloading modes;

    Iron nickel can cut down part and outer glass tube or glass and cut the direct hot melt sealing-in in pipe one end;

    Iron nickel can cut down part and outer glass tube or glass and cut the glass inner flange of pipe one end or outward flange implements plumbous hot-press sealing;

    Or iron nickel can cut down the welding ring that part is band Baltimore groove, glass cuts pipe insertion iron nickel and can cut down in part Baltimore groove by the sealing-in of glass sealing material indirect hot melting;

    Iron nickel can cut down the part other end and connect with unloading bellows or metal transfer boxing;

    Pipe connecting piece and metal inner pipe argon arc welding;

    Blast pipe is welded on outer glass tube or glass cuts on pipe, after vacuum exhaust, form vacuum chamber between metal inner pipe and outer glass tube;

    Metal inner pipe outer surface vacuum sputtering is high temperature resistant selective thermal absorber coatings;

    Compound device of cooling down is weldingly fixed on metal inner pipe or discharge mechanism or metal end or metal transfer ring, is all arranged on blast pipe side;

    Plumbous hot-press sealing end arranges protective device;

    1) described outer glass tube selects linear expansion coefficient to be 33 ×

    10 -7/ DEG C high-boron-silicon glass pipe;

    Or select linear expansion coefficient to be (40-65) ×

    10 -7/ DEG C neutrality 5.0 Pyrex;

    Or select neutral 5.0 boron-free glasses;

    Direct sealing by fusing connects need pay special attention to destressing of annealing, and prevents sealed end devitrification of glass and bursts, guaranteeing sealing-in air-tightness;

    2) described glass cuts pipe is glass-cutting outer tube and the short glass tube that formed according to requirements, adopts during the direct process for sealing of hot melt and should focus on annealing destressing;

    Adopt during plumbous hot-press sealing and cut pipe one end making outward flange or inner flange at outer glass tube or glass, end face of flange is smooth;

    3) described iron nickel can cut down part and is divided into three kinds of structures according to process for sealing, and directly molten process for sealing adopts becket structure, and indirect sealing by fusing connects and adopts Baltimore groove becket structure, and hot-press sealing adopts end cover structure;

    One end and outer glass tube or glass cut pipe sealing-in, and the other end connects with unloading bellows or metal transfer boxing;

    Select iron nickel cobalt glass sealing alloy 4J29,4J44, linear expansion coefficient is (46-55) ×

    10 when 20-450 DEG C -7/ DEG C, consistent with the line expansion curve of neutral 5.0 outer glass tube;

    Plumbous hot-press sealing selects iron nickel kovar alloy 4J42,4J45, and linear expansion coefficient is (40-75) ×

    10 when 20-450 DEG C -7/ DEG C;

    Wall thickness is advisable with 0.1-2mm;

    4) linear expansion coefficient of described glass sealing material is (40-65) ×

    10 -7/ DEG C, cut pipe and iron nickel can cut down between part between glass, softening and wandering temperature is 300-800 DEG C;

    The low-melting-point glass powder lead oxide content selected is between 30-60%;

    If outer glass tube is that lead-free low-melting-point glass powder then selected by neutral 5.0 borosilicates or boron-free glass;

    5) described unloading ripple tube wave joint number is at 2-20 ripple, and bellows wall thickness is 0.18-0.3mm, bellows inside nominal diameter 32-100mm;

    Anti-fatigue life should be greater than 30,000 times;

    Select SUS304,321 or SUS316,316L stainless steel material;

    It is 1.33 ×

    10 that slip controls when operating mode 120 DEG C -10pa.m 3/ sec;

    6) described metal end is the spill dome of the center drilling that stainless steel materials is stamped to form, wall thickness 0.3-2mm;

    Inner circle welding unloading bellows, cylindrical welding iron nickel can cut down part or metal transfer ring;

    7) described metal transfer ring is the metal ring that highlighted Thin Stainless Steel plate stretching is made into, and minute surface outwardly, can outbox weld with iron nickel, and the other end welds with metal end by one end;

    Wall thickness 0.3-2mm;

    8) described pipe connecting piece adopts SUS304,321 or the highlighted stainless sheet steel of SUS316,316L;

    Wall thickness is 0.3-2mm.The plate-like piece of inside port blockage centered by thio-glycidyl ether structural tube fitting, endoporus welds with metal inner pipe, and planar section end connects with unloading bellows argon arc welding or soldering;

    Interior unloading structure pipe connecting piece is one end reducing that drawn technique is formed, the tube-like piece of other end enlarging, and minute surface is inwardly in the face of metal inner pipe;

    Necking end and metal inner pipe argon arc welding, flared end and unloading bellows-welding;

    9) described metal inner pipe inside nominal diameter is between 25-90mm, wall thickness is between 0.3-5mm, nominal pressure, between 0.6-25MPa, selects SUS304,321 or SUS316,316L gapless stainless steel tube or ultra-supercritical boiler XA704, TP347H, SUPER304H, TP310HCbN alloy seamless steel pipe that is high temperature resistant, intergranular corrosion resistance;

    Metal inner pipe is metal straight pipe, or bellows tube, or inner helix pipe, or outer spiral tube, or the luxuriant bulk wave pipe joint luxuriant on regular of metal straight pipe surface;

    10) described spoiler is stainless steel substrates, strikes out tail-like, and one end flanging welded is on metal inner pipe port inner wall, and the other end is suitably bending with disturbance working fluid, each thermal-collecting tube welding one to three spoiler;

    Or spoiler is designed to the width rectangle identical with metal inner pipe diameter or square, punched openings is respectively to both sides flange in echelon in centre, and spoiler two ends are welded on the inwall of metal inner pipe one end;

    11) described blast pipe is 33 ×

    10 -7/ DEG C high-boron-silicon glass pipe or neutral 5.0 borosilicate glass tubes or neutral 5.0 boron-free glasses;

    Internal diameter 3-20mm, welding cuts on pipe at outer glass tube or glass.

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