CN2351713Y

CN2351713Y - Antifreezing whole glass vacuum tube solar energy thermal arrester

Info

Publication number: CN2351713Y
Application number: CN98222027U
Authority: CN
Inventors: 黄永年
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-05
Filing date: 1998-08-05
Publication date: 1999-12-01
Anticipated expiration: 2008-08-05

Abstract

The utility model relates to an anti-freezing whole glass vacuum pipe solar energy heat collecting device. A whole glass vacuum heat collecting pipe is inserted on a connecting and collecting device, and the other end of the whole glass vacuum heat collecting pipe is installed on a tail seat. The utility model is characterized in that an inner liner of the connecting and collecting device is composed of two or more than two cavity bodies which are not mutually communicated, wherein one cavity body is communicated with the whole glass vacuum heat collecting pipe, and the interior of the cavity body is filled with anti-freezing liquid. Other is a water cavity, a water inlet and a water outlet are arranged on the water cavity, and the water cavity and the cavity body which is filled with the anti-freezing liquid are provided with contact surfaces. The anti-freezing whole glass vacuum pipe solar energy heat collecting device resists extreme coldness, and the anti-freezing whole glass vacuum pipe solar energy heat collecting device can also normally work even if temperature is below-30 DGE C-50 DGE C. The utility model has simple structure, low cost, high heat efficiency and large pressure bearing capacity. The utility model can be connected in series and in parallel to form a heat collecting device with a large area.

Description

Solar heat collector of antifreezing full-glass vacuum pipes

The utility model belongs to a kind of heat collector that utilizes solar energy, mainly is that a kind of whole glass vacuum tube solar energy that can be freeze proof can heat collector.

All-glass solar vacuum tubular collector or hot water apparatus, because thermal efficiency height, cost is relatively low, is widely used.Wherein a kind of frame mode is: patch all-glass vacuum thermal-collecting tube in an accumulator (pipe) bottom, the other end of all-glass vacuum thermal-collecting tube is installed on the tailstock, and intake-outlet is arranged on the accumulator, constitutes circulation by intake-outlet and water tank.Water in water tank enters and rises to accumulator after vacuum heat collection pipe is heated and enter water tank again, but make-up water pump is used as power on the inlet and outlet pipe lines of water tank.Accumulator connection in series-parallel mutually forms the larger area heat collector.During use, the heat collector of formation such as accumulator and all-glass vacuum thermal-collecting tube is placed on the support, makes heat collector surface and plane form an inclined-plane.This all-glass solar vacuum tubular collector, cold zone in the winter time, during such as-30 ℃～-50 ℃, the water in the vacuum tube will freeze, and whole device can not be moved, and brings certain limitation to its application.

The purpose of this utility model is to overcome the defective that all-glass solar vacuum tubular collector can not resist severe cold, and it can normally be moved in cold season, and simple in structure, cost is low, and is easy to implement, can also form series parallel structure.

Solar heat collector of antifreezing full-glass vacuum pipes of the present utility model, comprise accumulator, all-glass vacuum thermal-collecting tube is plugged on the accumulator, the other end of all-glass vacuum thermal-collecting tube is installed on the tailstock, intake-outlet is arranged on the accumulator, its major technique characteristics are that the accumulator inner bag is made up of not connected two or more cavitys, wherein there is a cavity to communicate with vacuum heat collection pipe, in add and fill anti-icing fluid, all the other are water cavity, intake-outlet is arranged on the water cavity, and water cavity has contact-making surface with the cavity that is filled with anti-icing fluid.

The utility model is divided into antifreeze sap cavity and water cavity with accumulator, is full of anti-icing fluid in the vacuum heat collection pipe, under the very low situation of environment temperature, can not be damaged by frost because of freezing in the vacuum heat collection pipe.Anti-icing fluid in the vacuum heat collection pipe absorbs heat energy and to flowing in the accumulator, the anti-icing fluid contact-making surface through between antifreeze sap cavity and water cavity again carries out heat exchange, add the water in the hot-water cavity, the hot water in the water cavity in pipeline and outer tank water free convection or use the water pump forced circulation.The accumulator inner bag is outward heat-insulation layer and shell.Water in the water cavity constantly with water tank in water circulate, can remain on above zero and can not freeze, in particular cases, as overcast and rainy continuously, the water in the water tank can keep certain water temperature by electrical auxiliary heater.Because the thermal convection current effect of water is only obeyed hot water upwards, the characteristics of motion that cold water is downward, the heat energy of water has only energy seldom to conduct to the anti-icing fluid cavity by contact-making surface in the water cavity, past more bottom, the anti-icing fluid temperature is low more, still keep the lower temperature below 0 ℃, so the water by water pump circulation, dissipation of heat energy is seldom.Anti-icing fluid can be known material, or adds the water of antifreezing agent.

The form of the antifreeze sap cavity in the accumulator and the shape of water cavity and contact-making surface can be varied, water cavity can be in the anti-icing fluid cavity (being that water cavity is completely contained in the anti-icing fluid), also can be outside the anti-icing fluid cavity, preferably water cavity in the anti-icing fluid cavity the top or the top position outside the antifreeze sap cavity.Water cavity can be one or more, can be designed into 3-5.Water cavity is in the anti-icing fluid cavity, and water cavity can be multiple shape, best cylindrical or corrugated tube shape, and water cavity and anti-icing fluid have big contact-making surface and high heat-transfer effect, and high bearing capacity; Water cavity preferably partly is welded on tip position in the anti-icing fluid cavity by the mode of welding, and heat-transfer effect is better.Water cavity is outside the anti-icing fluid cavity, and their contact-making surface can be plate shaped, and circular arc preferably is pressed with ripple or groove on the contact-making surface, and its heat transfer efficiency height also increases the bearing capacity of contact-making surface.On the contact-making surface of water cavity and anti-icing fluid cavity fin can be arranged, generally be that the water cavity outer surface of the cylindrical or corrugated tube shape in the anti-icing fluid cavity has fin.

The infusion set of the external anti-icing fluid of anti-icing fluid cavity, this infusion set are to connect " U " type pipe in the bottom of a tank body, and " U " type pipe is connected with the anti-icing fluid cavity, and the purpose that " U " type pipe is set is to stop that heat reaches infusion set.Pore is arranged on the infusion set, infusion set is communicated with atmosphere.

The interface that the mutual connection in series-parallel of accumulator is used is all arranged on anti-icing fluid cavity on the accumulator and the water cavity, and the water inlet on the water cavity, delivery port also are the interfaces that connection in series-parallel is used.Make heat collector form the larger area heat collector by transverse and longitudinal.On the anti-icing fluid cavity of the terminal accumulator of connecting, have air bleeding valve.

Below in conjunction with the embodiment description of drawings:

Fig. 1 is structure of the present utility model and uses schematic flow sheet;

Fig. 2-Fig. 4 is the vertical section structure schematic diagram of accumulator;

Among the figure: 1 accumulator, 2 all-glass vacuum thermal-collecting tubes, 3 tailstocks, 4 water inlets, 5 delivery ports, 6 tank body 7U type pipes, 8 interfaces, 9 air bleeding valves, 10 inlet channels, 11 outlet conduits, 12 pumps, 13 water tanks, 14 anti-icing fluid cavitys, 15 water cavities, 16 heat-insulation layers, 17 shells

Fig. 1 is the cascaded structure that two heat collector units in series form, and water cavity 15 forms circulation with water tank 13, and pump 12 is used as power.Water inlet 4 on the water cavity and delivery port 5 also are the interfaces of series connection usefulness, and the interface 8 of series connection usefulness is also arranged on the anti-icing fluid cavity 14, and these interfaces are connected together by tube connector, on the anti-icing fluid cavity of the accumulator of end air bleeding valve 9 are arranged during series connection.

All-glass vacuum thermal-collecting tube 2 is plugged on the accumulator 1, the other end is installed on the tailstock 3, diffuse reflector (prior art is arranged below the all-glass vacuum thermal-collecting tube 2, not shown), bottom anti-icing fluid cavity 14 in the accumulator 1 communicates with all-glass vacuum thermal-collecting tube 2, and water cavity 15 does not communicate with anti-icing fluid cavity 14.The whole heat collector of formation such as accumulator 1 and all-glass vacuum thermal-collecting tube 2 can be placed on (prior art) on the support, connects normal using method and makes heat collector surface and plane, roof form an oblique angle or right angle.Anti-icing fluid in the tank body 6 enters in anti-icing fluid cavity 14 and the all-glass vacuum thermal-collecting tube 2 through U type pipe, after being heated, be by convection in the heat collector, by the contact-making surface of anti-icing fluid cavity and water cavity and the water generation heat exchange in the water cavity, water is heated, with the water circulation in the water tank.Behind the long-play, the anti-icing fluid in the tank body can replenish if loss (open to atmosphere pore is arranged on the tank body, have evaporation by this pore anti-icing fluid) is arranged.

Fig. 2-4 has enumerated the version of several accumulator anti-icing fluid cavitys 14 and water cavity 15, Fig. 2, and water cavity 15 is corrugated with the contact-making surface of anti-icing fluid cavity 14; Fig. 3 has three water cavities in anti-icing fluid cavity 14, and water cavity is a pipe; Fig. 4 has three tops of water cavity outside anti-icing fluid cavity 14.When a plurality of water cavity was arranged, the entery and delivery port of each water cavity can be parallel to respectively in the water-in and water-out pipeline.

Advantage of the present utility model:

Anti-severe cold, even under-30 ℃～-50 ℃, all-glass vacuum thermal-collecting tube can not freeze yet, whole heat collector can Normal operation, simple in structure, cost is low, and is easy to implement. Heat collector thermal efficiency height, bearing capacity is big, can go here and there also Connection forms large-area heat collector.

Claims

1, a kind of solar heat collector of antifreezing full-glass vacuum pipes, comprise accumulator (1), all-glass vacuum thermal-collecting tube (2) is plugged on the accumulator, the other end of all-glass vacuum thermal-collecting tube is installed on the tailstock (3), intake-outlet is arranged on the accumulator, it is characterized in that the accumulator inner bag is made up of not connected two or more cavitys, wherein there is a cavity (14) to communicate with vacuum heat collection pipe, in add and fill anti-icing fluid, all the other are water cavity (15), water cavity has intake-outlet on (15), and water cavity has contact-making surface with the cavity (14) that is filled with anti-icing fluid.

2, heat collector according to claim 1 is characterized in that water cavity can be in the anti-icing fluid cavity, also can be the upper position outside the anti-icing fluid cavity.

3, heat collector according to claim 2 is characterized in that the water cavity in the anti-icing fluid cavity is pipe or corrugated tube shape.

4, heat collector according to claim 3 is characterized in that the water cavity outer surface that is pipe or corrugated tube shape has fin.

5, heat collector according to claim 2 is characterized in that the water cavity that the anti-icing fluid cavity is outer and the contact-making surface of anti-icing fluid cavity are pressed with ripple or groove.

6, according to claim 1,2 described heat collectors, it is characterized in that the infusion set of the external anti-icing fluid of anti-icing fluid cavity (14), this infusion set is to connect " U " type pipe (7) in the bottom of a tank body (6), " U " type pipe is connected with the anti-icing fluid cavity.

7, heat collector according to claim 1 is characterized in that the interface of using for mutual connection in series-parallel is all arranged on the anti-icing fluid cavity of accumulator and the water cavity.

8, heat collector according to claim 7 is characterized in that having air bleeding valve (9) on the anti-icing fluid cavity of the terminal accumulator of connecting.

9, heat collector according to claim 1 is characterized in that the accumulator inner bag has heat-insulation layer (16) and shell (17) outward.