CN101008528A

CN101008528A - Profiled inner pipe all-glass vacuum solar collector tube

Info

Publication number: CN101008528A
Application number: CNA2007100629136A
Authority: CN
Inventors: 于学德; 罗赞继; 程翠英
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-22
Filing date: 2007-01-22
Publication date: 2007-08-01

Abstract

A special-shaped inner tube all-glass vacuum solar-energy collecting tube is characterized in that: the wall of inner tube (2) is a polyhedral cylinder axially extending along the inner tube (2); the inner and outer faces of the wall of inner tube (2) are relative to the cylinder; the radial section of inner tube (2) is relative to the polyhedral cylinder of the wall of inner tube (2); the face of polyhedral cylinder is plane, or the convex arc or the concave arc. The invention has the advantages in the replace function on the general full-glass vacuum solar-energy collecting tube, to improve the inner and outer faces of inner tube (2), to improve heat adsorption, reduce the water volume of inner tube, improve the heat efficiency and improve the strength, while it can resist the inner water pressure, the axial bend and the explosion. The invention has simple production and low cost.

Description

Profiled inner pipe all-glass vacuum solar collector tube

Technical field

The invention belongs to the helioplant field, relate to a kind of profiled inner pipe all-glass vacuum solar collector tube.

Background technology

In the prior art, family expenses close-coupled solar water heater all uses conventional complete glass vacuum sun thermal-collecting tube, the glass evacuated tubular construction of this Guan Weiyi end sealing one end opening, the openend group row formula of each pipe inserts the thermal storage water tank respectively, the sensitive surface of accepting the sun for the complete glass vacuum sun thermal-collecting tube that increases this routine, the general way that increases diameter of inner pipe that adopts, but diameter of inner pipe increases, its capacity obviously increases, thereby increased water capacity, but the recruitment of water capacity and the recruitment of sensitive surface also do not match, and can cause water temperature low, under identical solar irradiation amount, water temperature in the large scale in the pipe is also lower than the water temperature in the pipe in the small size, supply with thereby influence external available heat, the thermal efficiency is low on the contrary, and makes the solar energy that has collected cause unnecessary loss and can not in time utilize fully; Chinese patent ZL022334602 discloses " a kind of three chamber glass vacuum heat collection tube of solar energy ", promptly in interior pipe inner bag is housed, and with the water capacity of pipe in reducing, improves water temperature, and its weak point is that consumptive material increases, and production cost increases; In addition, inner tube structure does not become decades, be circular smooth straight shape for radial section always, its main deficiency is that the interior pipe light receiving surface of vacuum tube is long-pending and heat transfer area is all less, turbulent flow shape in hot and cold water place in the pipe, it is smooth and easy mobile to influence hot water, also just influence the thermal efficiency, and intensity is low, especially anti-inner pipe water pressure, anti-axial bending and anti-vexed solarization explosion ability are low.

Summary of the invention

The technical problem that solves:

Have under the prerequisite of the replaceability of being easy at the complete glass vacuum sun thermal-collecting tube that helps routine, the structure by pipe in changing does not increase consumptive material, does not increase production cost and its multiple performance is improved comprehensively; Can overcome the deficiencies in the prior art, technology is simple, easily manufactures, and is strong to the complete glass vacuum sun thermal-collecting tube replaceability of routine; Its sensitive surface of increase that can be bigger, reduce water capacity, the turbulent flow of hot and cold water in the pipe in reducing again, therefore can strengthen heat absorption, exchange capability of heat, improve the thermal efficiency and available heat utilization rate, simultaneously can increase its intensity, especially can improve the intensity of its anti-inner pipe water pressure, anti-axial bending and anti-vexed solarization explosion.

The technical scheme that adopts:

Profiled inner pipe all-glass vacuum solar collector tube, basic structure with conventional complete glass vacuum sun thermal-collecting tube is formed, outer tube, interior pipe, vacuum chamber and an end opening, it is characterized in that: the wall of interior pipe is the axially extended multi-faceted column type according to interior pipe, and the inside and outside face side of the wall of interior pipe is corresponding mutually with the multi-faceted column type according to extending axially of interior pipe; The radial section of interior pipe is corresponding with the multi-faceted column that wall was of interior pipe.

Beneficial effect:

Complete glass vacuum sun thermal-collecting tube to routine has replaceability, the inside and outside surface of pipe in the bigger increase, and therefore heat absorption is many, heat transfer is fast, and thermal efficiency height has reduced interior pipe water capacity, thereby increases useful work, improves heat utilization efficiency; Intensity increases, and especially can improve the intensity of its anti-inner pipe water pressure, anti-axial bending and anti-vexed solarization explosion; Simultaneously, do not increase consumptive material, do not increase production cost, technology is simple, easily manufactures.

Description of drawings

Fig. 1, general structure schematic diagram;

The face of Fig. 2, multi-faceted column is the plane, and the radial section of interior pipe 2 is an equilateral polygon formula schematic diagram, (a) square, (b) regular hexagon, (c) positive pentalpha, (d) positive anistree star;

The face of Fig. 3, multi-faceted column is the plane, and the radial section of interior pipe 2 is the polygon form schematic diagram of inequilateral, and is (e) trapezoidal, (f) parallelogram, (g) spear shape;

The face of Fig. 4, multi-faceted column is male type cambered surface or inner concave shape cambered surface, and the radial section of interior pipe 2 is positive multi-disc petal form schematic diagram, (h) evagination positive four petal, (i) evagination positive eight petal, (j) indent positive six petal;

The face of Fig. 5, multi-faceted column is male type cambered surface or inner concave shape cambered surface, and the radial section of interior pipe 2 is the petal schematic diagram of non-positive multi-disc; (k) Long Circle, (l) dumbbell shape, (m) ellipse, (n) spindle, (o) " heart " shape;

The face of Fig. 6, multi-faceted column is plane, male type cambered surface or the inner concave shape cambered surface form schematic diagram that mutually combines;

The specific embodiment

Further explanation in detail in conjunction with the accompanying drawings;

As shown in Figure 1, be vacuum chamber 3 between outer tube 1 and the interior pipe 2, have absorber coatings 4 on the outer surface of interior pipe 2, pipe 2 location steel card frame 5 in being equipped with in the vacuum chamber 3, and getter 6, upper end are arranged is connection opening 7; The wall of interior pipe 2 is the multi-faceted column type.

As shown in Figure 2, the face of the multi-faceted column that wall was of interior pipe 2 is the plane, and the radial section of interior pipe 2 is the equilateral polygon formula, and the intersection of adjacent surface is the camber line transition; The face number of multi-faceted column is preferably and contains the four sides more than interior four sides; The summit of the rib of multi-faceted column is S apart from the spacing of the inwall of outer tube 1, and S must be generally 2～6mm greater than zero, and the radial section of interior pipe 2 is (a) square formula, (b) regular hexagon formula, (c) positive five-pointed star form, (d) positive octagonal star form.

As shown in Figure 3, the face of the multi-faceted column that wall was of interior pipe 2 is the plane, the radial section of interior pipe 2 is the polygon form of inequilateral, the intersection of adjacent surface is the camber line transition, the summit of each rib of multi-faceted column is S apart from the spacing of the inwall of outer tube 1, S equates or does not wait, but all must be generally 2～6mm greater than zero; The radial section of interior pipe 2 is (e) trapezoidal formula, (f) parallelogram formula, (g) spear form.

As shown in Figure 4, be vacuum chamber 3 between outer tube 1 and the interior pipe 2, have absorber coatings 4 on the outer surface of interior pipe 2, pipe 2 location steel card frame 5 in being equipped with in the vacuum chamber 3, and getter 6, upper end are arranged is connection opening 7; The face of the multi-faceted column that wall was of interior pipe 2 is male type cambered surface or inner concave shape cambered surface, and the radial section of interior pipe 2 is positive multi-disc petal form, and the intersection of adjacent surface is the camber line transition; The face number of multi-faceted column is preferably and contains the four sides more than interior four sides, and the summit of the rib of multi-faceted column is S apart from the spacing of the inwall of outer tube 1, and S must be generally 2～6mm greater than zero; The radial section of interior pipe 2 is the positive four petal forms of (h) evagination, (i) the positive eight petal forms of evagination, (j) the positive six petal forms of indent.

As shown in Figure 5, the face of the multi-faceted column that wall was of interior pipe 2 is male type cambered surface or inner concave shape cambered surface, and the radial section of interior pipe 2 is non-positive multi-disc petal form, and the intersection of adjacent surface is the camber line transition; The summit of each rib of multi-faceted column is S apart from the spacing of the inwall of outer tube 1, and S equates or do not wait, but all must be greater than zero, be generally 2～6mm, the radial section of interior pipe 2 is (k) oval form, (l) dumbbell shape formula, (m) elliptical form, (n) spindle form, (o) " heart " form.

As shown in Figure 6, in the face of pipe 2 the multi-faceted column that wall was be plane, male type cambered surface or the inner concave shape cambered surface form that mutually combines, the intersection of adjacent surface is the camber line transition, the summit of each rib of multi-faceted column is S apart from the spacing of the inwall of outer tube 1, S equates or does not wait, but all must be generally 2～6mm greater than zero, the radial section of interior pipe 2 is (p) pentagon formula, (q) hexagon form.

Described " extending axially of interior pipe " axially, be meant with the orientation of the axis of outer tube 1 corresponding in the direction that axis determined of pipe 2.

" rib " of described multi-faceted column, be meant the adjacent surface and the formed solid of intersection thereof of multi-faceted column, perhaps be meant the formed solid of its male type cambered surface, and " summit of rib " is meant the adjacent surface of multi-faceted column in the intersection place of a side of vacuum chamber 3, perhaps is meant the outermost physical dimension line place of its male type cambered surface in a side of vacuum chamber 3.

Claims

1, profiled inner pipe all-glass vacuum solar collector tube, basic structure with conventional complete glass vacuum sun thermal-collecting tube is formed, outer tube, interior pipe, vacuum chamber and an end opening, it is characterized in that: the wall of interior pipe is the axially extended multi-faceted column type according to interior pipe, and the inside and outside face side of the wall of interior pipe is corresponding mutually with the multi-faceted column type according to extending axially of interior pipe; The radial section of interior pipe is corresponding with the multi-faceted column that wall was of interior pipe.

2, profiled inner pipe all-glass vacuum solar collector tube according to claim 1 is characterized in that: the face of the multi-faceted column that wall was of interior pipe (2) is the plane, perhaps is male type cambered surface or inner concave shape cambered surface, and the intersection of two adjacent surfaces is the camber line transition; The summit of the rib of multi-faceted column must be greater than zero apart from the spacing of the inwall of outer tube (1).

3, profiled inner pipe all-glass vacuum solar collector tube according to claim 2 is characterized in that: the face of multi-faceted column is the plane, and the radial section of interior pipe (2) is the equilateral polygon formula.

4, profiled inner pipe all-glass vacuum solar collector tube according to claim 2 is characterized in that: the face of multi-faceted column is the plane, and the radial section of interior pipe (2) is the polygon form of inequilateral.

5, profiled inner pipe all-glass vacuum solar collector tube according to claim 2 is characterized in that: the face of multi-faceted column is male type cambered surface or inner concave shape cambered surface, and the radial section of interior pipe (2) is positive multi-disc petal form.

6, profiled inner pipe all-glass vacuum solar collector tube according to claim 2 is characterized in that: the face of multi-faceted column is male type cambered surface or inner concave shape cambered surface, and the radial section of interior pipe (2) is non-positive multi-disc petal form.

7, profiled inner pipe all-glass vacuum solar collector tube according to claim 2 is characterized in that: the face of multi-faceted column is plane, male type cambered surface or the inner concave shape cambered surface form that mutually combines.

8, according to the described profiled inner pipe all-glass vacuum solar collector tube of claim 1～7, it is characterized in that: the face number of multi-faceted column is to contain the four sides more than interior four sides.