CN2708184Y

CN2708184Y - Heat collection unit for glass vacuum tube solar water heater

Info

Publication number: CN2708184Y
Application number: CNU2003201290297U
Authority: CN
Inventors: 阎建一
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-25
Filing date: 2003-12-25
Publication date: 2005-07-06
Anticipated expiration: 2013-12-25

Abstract

The utility model discloses an improvement for the heat collection unit of a vacuum tube solar water heater with a connecting and collecting tube. A core tube is added in a heat collecting tube so that the water in the heat collecting tube is reduced by 2/3 to 3/5; consequently, the water temperature in the heat collecting tube is increased fast and the temperature is high. Simultaneously, a flow-guided isolating plate is arranged in a connecting and collecting tube so that the water in the connecting and collecting tube is divided into the cold water and the hot water; therefore, the hot water in the heat collecting tube, which is solarized by the sun, enters rapidly the hot water cavity of the connecting and collecting tube, and the cold water enters the connecting and collecting tube through the cold water cavity of the connecting and collecting tube. Because of fluent convection between the heat and the cold, the defect that the hot and cold water circulation is hindered is overcome, and the scale deposit is not easy to accumulate in the heat collecting tube. The test shows that during the same time interval, the water temperature in the water storage tank of the solar water heater with the core tube is increased by 3-5 DEG C, compared with the water storage tank of the solar water heater without the core tube; the utility model fully utilizes the solar energy and enhances the heat efficiency.

Description

A kind of vacuum tubular glass solar collector's thermal-arrest unit

The utility model relates to a kind of vacuum tubular glass solar collector's thermal-arrest unit, particularly a kind of thermal-arrest unit of the glass vacuum tube solar energy water heater with connecting pipe.

Background technology

The vacuum tubular glass solar collector who has connecting pipe at present because thermal-collecting tube placement direction difference, and has two kinds on standpipe type and transverse tube type, all is to go to water tank by the heat delivery that connecting pipe is obtained thermal-collecting tube.All exist heat up slow, rate of heat exchange is slow, and since cold and hot convection circulation be obstructed and easily cause short-circuit cycle, simultaneously, in the thermal-collecting tube easily incrustation can not in the limited time, make full use of solar energy.

Summary of the invention

The problem the utility model that exists in view of prior art adopts hot and cold water to shunt and reduce the method for the water yield in the thermal-collecting tube in connecting pipe, heat up and improve the convection current performance to accelerate in the thermal-collecting tube water, the technical solution of the utility model is: a kind of vacuum tubular glass solar collector's thermal-arrest unit includes connecting pipe and thermal-collecting tube, it is characterized in that: in thermal-collecting tube, a core pipe is inserted solid on the central axis of thermal-collecting tube with another card that expands with the card that expands; In connecting pipe, fix a diaphragm, connecting pipe is divided into two parts, and diaphragm has semicircle long recess one side towards the thermal-collecting tube sunny slope, insert admittedly in a plurality of circular holes of connecting pipe a plurality of thermal-collecting tubes upper end that the core pipe is housed, and the back of the body sun cylinder that exposes the outer core pipe of thermal-collecting tube is close in the semicircle long recess of diaphragm.

Characteristics of the present utility model are: under the situation of same irradiation than the water quick heating in the thermal-collecting tube that does not add the core pipe, temperature height, accelerate with hot water or cold water's convection velocity in the connecting pipe, adopt hot water or cold water's shunting in the connecting pipe simultaneously, make hot and cold convection circulation smooth and easy, and no longer include the disadvantage of short-circuit cycle, incrustation is few in the thermal-collecting tube, in the limited time, made full use of solar energy, show by experiment, place the core pipe and in the same time period, improve 3-5 ℃ of water temperature than the solar water heater water-storage jar of not putting the core pipe.

Description of drawings

Fig. 1 is a vertical pipe type structural front view of the present utility model and as Figure of abstract

Fig. 2 is the vertical view of Fig. 1 structure

Fig. 3 is a transverse tube type structural representation of the present utility model

Fig. 4 is the vertical view of Fig. 3 structure

Fig. 5 is the thermal-collecting tube structural representation that has the core pipe of the present utility model

Among the figure: 1. connecting pipe, 2. thermal-collecting tube, 3. core pipe, 4. diaphragm, 5. cushion rubber, 6. hot water mouth, 7. cold water outlet, the card that 8. expands, card 9. expands.

The specific embodiment

As shown in Figure 5, core pipe (3) is the glass tube with vacuum of 1.5mm wall thickness, its length is longer than the interior length 30mm of thermal-collecting tube (2), the card (8) that expands is fixed in the face of cylinder first half of core pipe (3), the bottom that the card (9) that will expand is fixed in core pipe (3) inserts together in thermal-collecting tube (2), makes core pipe (3) block the bottom that (9) lean against thermal-collecting tube (2) on the axis of thermal-collecting tube (2) and by expanding.

Embodiment one, vertical pipe type structure of the present utility model

By Fig. 1, Fig. 2 as can be known, diaphragm (4) is to adopt the thick corrosion resistant plate punching press of 0.3mm to grow up, wide respectively with the length of connecting pipe (1), high measure-alike rectangular slab, simultaneously be pressed with a plurality of radiuses and the identical semicircle long recess of core pipe (3) outer radius at the plate face, flute length is wide half of diaphragm, the shaft core position of groove is identical with the circular hole center that connecting pipe (1) is gone up fixed set heat pipe (2), diaphragm (4) point is welded on the inwall of connecting pipe (1), make diaphragm (4) semicircle long recess one side be arranged, and make the semicircle long recess axial line that has on the diaphragm (4) aim at the circular hole center of connecting pipe (1) fixed set heat pipe (2) towards connecting pipe (1) sunny slope.The thermal-collecting tube (2) that will be inserted with core pipe (3) is inserted in the circular hole of connecting pipe (1) fixed set heat pipe (2), the back of the body sun cylinder that makes core pipe (3) expose thermal-collecting tube (2) part is close in the semicircle long recess of diaphragm (4), and thermal-collecting tube (2) upper end is fixed on the connecting pipe (1) by cushion rubber (5).

Embodiment two, transverse tube type structure of the present utility model

By Fig. 3, Fig. 4 as can be known, diaphragm (4) is to adopt the thick corrosion resistant plate punching press of 0.3mm to grow up, wide respectively with the length of connecting pipe (1), high measure-alike rectangular slab, be pressed with the long logical groove of a plurality of radiuses semicircle identical at the plate face simultaneously with core pipe (3) outer radius, the shaft core position of groove is identical with the circular hole center that connecting pipe (1) is gone up fixed set heat pipe (2), diaphragm (4) point is welded on the inwall of connecting pipe (1), make diaphragm (4) semicircle long logical groove one side be arranged, and make the semicircle long logical groove axial line that has on the diaphragm (4) aim at the circular hole center of the both sides fixed set heat pipes (2) of connecting pipe (1) towards connecting pipe (1) sunny slope.The thermal-collecting tube (2) that will be inserted with core pipe (3) is inserted in the circular hole of connecting pipe (1) fixed set heat pipe (2), the back of the body sun cylinder that makes core pipe (3) expose thermal-collecting tube (2) part is close in the semicircle long logical groove of diaphragm (4), and thermal-collecting tube (2) upper end is fixed on the connecting pipe (1) by cushion rubber (5).

Claims

1. a vacuum tubular glass solar collector thermal-arrest unit includes connecting pipe (1) and thermal-collecting tube (2), it is characterized in that: with a bloated card (8) and the card (9) that expands a core pipe (3) is inserted admittedly on the central axis of thermal-collecting tube (2) in thermal-collecting tube (2); In connecting pipe (1), fix a diaphragm (4), connecting pipe (1) is divided into two parts, and diaphragm (4) has semicircle long recess one side towards connecting pipe (1) sunny slope, insert admittedly in a plurality of circular holes of connecting pipe (1) a plurality of thermal-collecting tubes (2) upper end that core pipe (3) is housed, and the back of the body sun cylinder that exposes the outer core pipe (3) of thermal-collecting tube (2) is close in the semicircle long recess of diaphragm (4).

2. the thermal-arrest unit of a kind of glass vacuum tube solar energy water heater as claimed in claim 1, it is characterized in that: core pipe (3) is the circular thin-walled straight tube of a sealing, its length outline is longer than the interior length of thermal-collecting tube (2), its diameter is to make the inner capacities of thermal-collecting tube (2) reduce 2/3 to 3/5 after core pipe (3) inserts in the thermal-collecting tube (2), and its material is any water-fast material.

3. the thermal-arrest unit of a kind of glass vacuum tube solar energy water heater as claimed in claim 1, it is characterized in that: a plurality of equidistant semicircle long recess are arranged on the diaphragm (4), the radius of groove is identical with the outer radius of core pipe (3), and groove location is identical with the circular hole position that connecting pipe (1) is gone up placement thermal-collecting tube (2).