CN201093776Y

CN201093776Y - Double glass vacuum metal tube type solar heat collector outputting high temperature

Info

Publication number: CN201093776Y
Application number: CNU2007200455055U
Authority: CN
Inventors: 黄永年
Original assignee: Individual
Current assignee: Huang Yongli
Priority date: 2007-08-23
Filing date: 2007-08-23
Publication date: 2008-07-30
Anticipated expiration: 2017-08-23

Abstract

The utility model provides a double layer glass vacuum metal tube type solar energy collector of which the output temperature is high, and relates to a heat utilization technology of solar energy. The outer surface of an inner glass blind tube is provided with a solar energy heat-absorbing film; blind ends of the metal tube one and the metal tube two in the inner glass blind tube are mutually communicated; at least two metal fins are arranged outside the metal tube one, and the metal pipe two is arranged between gaps of the fins of the metal pipe one; end parts of metal tubes one and two pass out of the inner glass blind tube to be supported on the opening end of the inner glass blind tube in an intermittent type, and the end parts are positioned at the opening ends of the inner glass blind tube. The elevation of temperature of the medium in the metal pipe one and the metal pipe two is fast and high, and the utility model can greatly improve the output temperature of the heat transmission medium. The effect hot water productive rate and the temperature of the heat transmission medium in a heat storage tank are favorable to be increased, and the filed of the appliance is expanded.

Description

The double-layer glass vacuum metal pipe type solar heat-collector that output temperature is high

Technical field

The utility model relates to solar energy utilization technique.

Background technology

Utilizing the solar energy heating technology is an environment-friendly type advanced technology that extensively adopts in recent years, be applied on the water heater in large quantities at present, although the structure of various solar thermal collectors is not quite similar, but all be to rely on vacuum heat collection pipe fully to absorb the energy of sunshine, and be translated into heat energy and be transferred to medium (as water).Vacuum heat collection pipe is the heat collecting element that solar thermal collector generally uses.In the prior art, thermal-collecting tube is made of inside and outside glass blind pipe, is evacuated between two pipes, and coated heat-absorbing material on the outer wall of inner tube is full of water in the interior pipe, relies on outer wall of inner tube to absorb solar radiant energy water is heated, and vacuum layer plays insulation effect.In use, this vacuum heat collection pipe is because of there being water all the time in managing, and therefore exists easily to freeze shortcomings such as damages, easy fouling, the thermal efficiency are low.In addition,, has only an end, again as hot water outlet, so the medium in the thermal-collecting tube can not carry out heat exchange with its outer medium swimmingly both as cooling water inlet because this thermal-collecting tube one end is a cecum.Each thermal-collecting tube accumulates heat collector by header again, and this heat collector is difficult for the higher temperature of output because the WATER AS FLOW MEDIUM quantity of internal memory is big.

The utility model content

The utility model purpose is to design a kind of double-layer glass vacuum metal pipe type solar heat-collector that can improve the heat transfer medium output temperature significantly.

The utility model comprises at least three case heat-collection pipes, every case heat-collection pipe comprises two transparent inside and outside glass blind pipes of mutual socket in the same way, inside and outside two glass blind pipes are in the mutual welding of openend, and between two glass blind pipes, vacuum chamber is set, it is characterized in that: the outer surface at interior glass blind pipe is provided with solar energy decalescence films; In interior glass blind pipe, be arranged in parallel metal tube one and metal tube two, metal tube one, two cecums at interior glass blind pipe are interconnected, and at least two metal fins are set outside metal tube one, between the fin space of metal tube one metal tube two are set; The end that metal tube one, two is positioned at glass blind pipe openend passes the openend that glass blind pipe and clearance-type are supported on the glass blind pipe.

The utility model is provided with on metal fin and the metal tube two by metal tube one metal fin is not set, and the medium in metal tube one and metal tube two forms the temperature difference; Because the medium amount that is full of fully in the medium amount in metal tube one and the metal tube two and the vacuum tube is compared and is wanted much less, thereby the medium in metal tube one and the metal tube two heats up faster higher, this will help improving the heat collector effective output rate of hot water, help improving the temperature of heat transfer medium in the heat storage box, help enlarging the field that heat collector is used.

Metal fin described in the utility model is radial, and an end of each metal fin is fixedly connected on respectively outside the metal tube one.

Metal fin described in the utility model is two, and is curved, and an end of two metal fins is fixedly connected on respectively outside the metal tube one, other end bending in opposite directions respectively.

The utility model also is provided with the optically focused reflecting element between inside and outside two glass blind pipes.The optically focused reflecting element has enlarged daylighting area, and the sunlight after the convergence has also improved energy-flux density, makes the temperature of thermal-collecting tube output be able to further raising, for solar energy has been expanded the application space in other field, as high temperature heating, refrigeration, desalinization etc.

The metal tube one, two of two adjacent groups thermal-collecting tube also can be connected in series successively, and two ports that serial connection forms are connected to two and gather on the pipe.

Description of drawings

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

Fig. 2 is an another kind of structural representation of the present utility model.

Fig. 3 is the syndeton schematic diagram of inside and outside glass blind pipe.

Fig. 4 is that cut-away view amplifies in I portion among Fig. 1.

Fig. 5 is a kind of A-A sectional drawing among Fig. 1.

Fig. 6 is second kind of A-A sectional drawing among Fig. 1.

The specific embodiment

As shown in Figure 1, the utility model is made up of quadruplet thermal-collecting tube 1 at least, and the metal tube 1 that passes in each thermal-collecting tube 1 is attempted by respectively and gathers on the high-temperature conduit 4, and the metal tube 23 that passes in each thermal-collecting tube 1 is attempted by respectively and gathers on the low temperature water pipe 5.

As shown in Figure 2, the metal tube one, two of two adjacent groups thermal-collecting tube also can be connected in series successively, and two ports that serial connection forms are connected to and gather pipe 14 and gather on the pipe 15.

As shown in Figure 3, form mutually in the same way by transparent interior glass blind pipe 6, outer glass blind pipe 7, metal tube 1 and the metal tube 23 of socket by two for every case heat-collection pipe 1, inside and outside two glass

blind pipes

6,7 are in the mutual welding of openend, and between two glass blind pipes vacuum chamber are set.

As shown in Figure 4, openend clearance-type at interior glass blind pipe 6 cooperates the circular flexible glue pad 8 of a slice, on circular flexible glue pad 8, offer two through holes, each hole size, shape are suitable with external diameter size, the shape of metal tube 1 and metal tube 23 respectively, and metal tube 1 and metal tube 23 are set in respectively in these two through holes.

The openend of metal tube 23 is connected and gathers on the low temperature water pipe 5 after gather high-temperature conduit 4 and cross out.

As shown in Figure 5, interior glass blind pipe 6 arranged off-centre are outside in the glass blind pipe 7, interior glass blind pipe 6 and outside W shape optically focused reflecting element 9 is set between the glass blind pipe 7.Solar energy decalescence films 11 is established in plating outside interior glass blind pipe 6.

23, two pipes of metal tube 1 and metal tube that are arranged in parallel in interior glass blind pipe 6 are interconnected at the cecum of interior glass blind pipe 6.

The cross section of metal tube 1 and metal tube 23 is the full circle ring-type respectively, fixedly is four metal fins 10 of radial arrangement in the welding of metal tube one 2 outer surfaces.

As shown in Figure 6, fix two

curved metal fins

12,13 in the welding of metal tube one 2 outer surfaces, one end of metal fin 12 is fixedly connected on outside the metal tube 1, and an end of metal fin 13 also is fixedly connected on outside the metal tube 1, the bending in opposite directions respectively of an end of two

metal fins

12,13.

During actual production, two

curved metal fins

12,13 and metal tube 1 can be passed through the mould integral production.

Claims

1. the high double-layer glass vacuum metal pipe type solar heat-collector of output temperature, comprise at least three case heat-collection pipes, every case heat-collection pipe comprises two transparent inside and outside glass blind pipes of mutual socket in the same way, inside and outside two glass blind pipes are in the mutual welding of openend, and between two glass blind pipes, vacuum chamber is set, it is characterized in that: the outer surface at interior glass blind pipe is provided with solar energy decalescence films; In interior glass blind pipe, be arranged in parallel metal tube one and metal tube two, metal tube one, two cecums at interior glass blind pipe are interconnected, and at least two metal fins are set outside metal tube one, between the fin space of metal tube one metal tube two are set; The end that metal tube one, two is positioned at glass blind pipe openend passes the openend that glass blind pipe and clearance-type are supported on the glass blind pipe.

2. according to the high double-layer glass vacuum metal pipe type solar heat-collector of the described output temperature of claim 1, it is characterized in that described metal fin is radial, an end of each metal fin is fixedly connected on respectively outside the metal tube one.

3. according to the high double-layer glass vacuum metal pipe type solar heat-collector of the described output temperature of claim 1, it is characterized in that described metal fin is two, curved, an end of two metal fins is fixedly connected on respectively outside the metal tube one, other end bending in opposite directions respectively.

4. according to the high double-layer glass vacuum metal pipe type solar heat-collector of the described output temperature of claim 1, it is characterized in that between inside and outside two glass blind pipes, the optically focused reflecting element being set.

5. according to claim 1 or 2 or the 3 or 4 high double-layer glass vacuum metal pipe type solar heat-collectors of described output temperature, the metal tube one, two that it is characterized in that respectively organizing thermal-collecting tube is attempted by respectively and gathers high-temperature conduit and gather on the low temperature water pipe.

6. according to claim 1 or 2 or 3 or the 4 or 5 high double-layer glass vacuum metal pipe type solar heat-collectors of described output temperature, the metal tube one, two that it is characterized in that the two adjacent groups thermal-collecting tube is connected in series successively, and two ports that serial connection forms are connected to two and gather on the pipe.