CN2518039Y

CN2518039Y - Dual-opening large capacity solar vacuum collector

Info

Publication number: CN2518039Y
Application number: CN02228188U
Authority: CN
Inventors: 谭建安
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-18
Filing date: 2002-01-18
Publication date: 2002-10-23
Anticipated expiration: 2012-01-18

Abstract

The utility model relates to a double-opening type large capacity solar energy vacuum heat collection tube. The utility model comprises an inner liner, a heat absorption layer and an outer casing, a closed vacuum layer is arranged between the inner liner and the outer casing, the heat absorption layer is located in the outer casing, and covered at the outer side of the inner liner, and a fixing supporting frame is arranged between the heat absorption layer and the outer casing. The structure and the processing technology of the utility model are simple, compared with the vacuum coating technology, the technology of the heat absorption layer is simper, and the production technology of the existing thermos bottle liner can be fully utilized. The structure and material of the heat absorption layer are advantageous for the increase of the heat absorption area, the light-heat conversion rate is enhanced, and the utility model has the same heat preservation effect as the thermos bottle. In addition, the single tube volume of the utility model is big, when the water heater is assembled, the single machine and no tube can be realized, the utility model can be agilely assembled according to the desired volume, and a plurality of single machines can be connected to form a large and medium solar energy hot water supplying state. The utility model adopts common material, the market price is cheap, and thereby the cost is inexpensive.

Description

The big capacity solar vacuum heat-collecting pipe of dual-opening type

(1) technical field:

The utility model relates to a kind of new type solar energy vacuum glass heat collection tube, relates in particular to the big capacity solar vacuum heat-collecting pipe of a kind of dual-opening type.

(2) background technology:

At present, China's solar energy vacuum glass thermal-collecting tube (to call vacuum tube in the following text) technology maturation, good product quality, low price has become the leading products of the market supply.But because the vacuum tube internal diameter is little, be generally 33～40mm, volume 0.8～1.2L/m only possesses heat collection function, must rely on water storage cylinder to carry out heat exchange.Though the vacuum tube price is not high, water storage cylinder processing technology more complicated cost height, thereby influenced popularizing of solar vacuum-tube water heater.Though thermal-arrest has appearred in market and water storage is the vacuum tube of one, but because of this type vacuum tube is doleiform single port structure, the heat absorbing coating complex process of vacuum coating, the cost height, add when this pipe has only an end opening to use as the water heater heat collection water storage can only the mouth of pipe up, the blowdown difficulty can not be installed electrothermal tube, also is difficult at present promote.

(3) summary of the invention

The purpose of this utility model provides a kind of rational in infrastructure, technology is simple, the thermal efficiency is high, low price, thermal-arrest and water storage unite two into one big capacity solar vacuum heat-collecting pipe of dual-opening type.

Purpose of the present invention is achieved through the following technical solutions: it is made up of inner bag, heat-sink shell and shell, is totally enclosed vacuum layer between inner bag and shell, and heat-sink shell is positioned at shell, and covers the outside of inner bag, and two of inner bag and shell is provided with opening.

The utlity model has following advantage:

1, the single tube volume is big, realizes that unit does not have tubeization.Modal 5 pounds, 8 pounds thermos flask internal diameters are respectively 110mm, 133mm at present, as vacuum heat collection pipe with reference to the long 1.6m of its internal diameter manufacturing (containing reducing closes up partly), its capacity reaches 15～20L approximately, make the specification standards part after, just capacity carries out flexible combination according to demand.Such as, the vacuum tube of 10 15L is connected and fixed with corresponding framework and interface, just can assemble the solar water heater of 150L.On this basis, also some unit multi packs can be become large and medium-sized solar energy heating water stop.

2, simple in structure, technical maturity.Vacuum tube is made up of inner bag, heat-sink shell, shell, and inner bag and shell are made of wall thickness 3mm glass tube, and the 10mm interlayer is a vacuum layer between the two.Heat-sink shell is made of layer of copper (aluminium) gauze and layer of copper (aluminium) sheet, becomes the superimposed inner bag outer surface that covers up and down.Be the support fixation inner bag, the stainless steel zone circle of band spring leaf has been installed in interlayer specially.And, vacuumize processing at last after fusion process closes up inner bag and outer casing shell pipe and seals.Whole process flow is very simple.It is much simpler than technique for vacuum coating that particularly heat-sink shell adopts the covering of copper (aluminium) net sheet, can make full use of the production technology process of existing thermos flask glass refills.

3, aesthetic in appearance, convenient and practical.Because without water storage cylinder, only need fixedly connected with frame with the connecting leg interface at the two ends of vacuum tube.Can also install electric heating tube additional as required.Because the thickness of water heater is consistent with the diameter of vacuum tube, seems very light and handy, as is installed on the various pitched roof, more helps the harmony attractive in appearance of building.

4, thermal efficiency height, good heat preservation performance.The vacuum tube heat absorbing material helps increasing endotherm area because of adopting copper (aluminium) sheet and copper (aluminium) gauze composite construction, improves the photo-thermal conversion ratio.Above-mentioned material is through electroplating the melanism treatment process, and black coating is prolonged constant, and thermal conversion rate can reach about 60%.Because the vacuum tube layer vacuum is≤5 * 10Pa ^-2, have the heat insulation effect identical with thermos bottle.

5, cost is low, easily promotes.Because manufactured materials is general material, ample supply of commodities on the market, low price adds that production line only needs existing thermos flask glass refills production line is transformed a little and can be produced, and do not need big investment, so cost is low.Through measuring and calculating, behind employing the utility model vacuum tube, domestic solar water heater's price of 100～150L is controlled at about 1000～1200 yuan, compares with the like product price of present band water storage cylinder and reduces about 30%～40%.Therefore, it is all very high to predict the enthusiasm that the manufacturer production and the common people select for use.

(4) description of drawings:

Fig. 1 is a structural representation of the present utility model.

The A-A cutaway view of Fig. 2 bitmap 1.

The structural representation of Fig. 3 position copper aluminium heat absorption net sheet.

Fig. 4 is the expansion schematic diagram of fixed support steel band.

(5) specific embodiment:

In order to make the utility model structure clear more complete, be described further below in conjunction with accompanying drawing.

As shown in Figure 1, 2, dual-opening type high-capacity vacuum pipe is similar to the inner flask of both ends open outward, and it is made up of shell 1, heat-sink shell 2, inner bag 3 and fixed support 5.Shell 1 and inner bag 3 are made according to principle, the technology of family expenses thermos flask by the high-boron-silicon glass pipe of three millimeters of wall thickness, printing opacity good heat resistance, are ten millimeters vacuum layer 6 between the two.As shown in Figure 3, heat-sink shell 2 is by through melanism or electroplate layer of copper or aluminium gauze 2-1 and the layer of copper that the melanism treatment process makes or aluminium flake 2-2 is superimposed constitutes, and copper or aluminium gauze cover on copper or the aluminium flake.Adopt the copper of the utility model structure or aluminium gauze to help increasing the area of the glory heat absorption of vacuum tube as the heat-sink shell structure.As shown in Figure 4, the heat-sink shell 2 outer fixed supports 5 that are provided with, the heat-sink shell 2 that is used for fixing inner bag 3 outsides, and inner bag 3 is supported in the shell 1, fixed support 5 is made by the stainless steel zone circle of band spring leaf, and spring leaf 5-1 is evenly distributed on the steel band 5-2, be respectively equipped with connecting plate 5-3 and locking hole 5-4 at the two ends of steel band 5-2, connecting plate 5-3 is inserted in the locking hole 5-4, make steel band 5-2 in the form of a ring, and heat-sink shell 2 is locked in tightly the outside of inner bag 3.Earlier metal heat-sink shell 2 is covered the outside of inner bag 3 during making, use then stainless steel zone circle 5 with heat-sink shell 2 lock rings in inner bag 3 outsides, again shell 1 is enclosed within the outer ring of heat-sink shell 3, then shell 1 and inner bag 3 are closed up and seal, carry out vacuum-pumping and sealing and handle by vacuumizing tail pipe 4 at last with fusion process.

Dual-opening type high-capacity vacuum pipe is contained on the solar water heater, only needs the opening two ends of vacuum tube are connected with the fixed frame of band water pipe, and heat-sink shell absorbs the heat of the sun, the cold water in the heating, vacuum pipe inner bag, and the vacuum layer of the interlayer of thermal-collecting tube plays insulation effect.

Claims

1. big capacity solar vacuum heat-collecting pipe of dual-opening type, it is characterized in that: it is made up of inner bag, heat-sink shell and shell, is totally enclosed vacuum layer between inner bag and shell, and heat-sink shell is positioned at shell, and cover the outside of inner bag, be provided with opening at the two ends of inner bag and shell.

2. the big capacity solar vacuum heat-collecting pipe of dual-opening type according to claim 1 is characterized in that: heat-sink shell is by through melanism or electroplate copper or aluminium gauze and the copper that the melanism treatment process makes or aluminium flake is compound constitutes, and copper or aluminium gauze cover on copper or the aluminium flake.

3. the big capacity solar vacuum heat-collecting pipe of dual-opening type according to claim 1, it is characterized in that: heat-sink shell is provided with fixed support outward.

4. the big capacity solar vacuum heat-collecting pipe of dual-opening type according to claim 3 is characterized in that: fixed support is made by the stainless steel zone circle of band spring leaf, and spring leaf is evenly distributed on the steel band, is respectively equipped with connecting plate and locking hole at the two ends of steel band.

5. the big capacity solar vacuum heat-collecting pipe of dual-opening type according to claim 3 is characterized in that: shell and inner bag are made by the high-boron-silicon glass pipe of three millimeters of wall thickness, printing opacity good heat resistance, and interlamellar spacing between the two is ten millimeters.