CN201421196Y - A volumetric flat plate heat collector - Google Patents

Abstract

The utility model discloses a volumetric flat plate heat collector, which is characterized in that it has a frame body (10), and the frame body (10) is sequentially provided with a thermal insulation bottom plate (1), a thermal insulation board (2) and a thermal insulation layer (3), the inner side of the frame body (10) is provided with thermal insulation side panels (11), and at least one heat collector unit (18) is provided on the inner insulation layer (3) of the frame body (10), and the heat collector unit (18) It consists of a heat-collecting tank (15) with a heat-absorbing layer (4) attached to its surface and two heat-collecting tank inlet and outlet pipes (21). The two heat-collecting tank inlet and outlet pipes (21) are connected to the Two water inlet and outlet pipes (13) are connected, and at least one layer of transparent cover plate is provided on the upper part of the frame body (10), which has a simple structure, beautiful appearance, convenient transportation, wide application range, strong pressure bearing capacity, and heat transfer and storage medium , no need for electric energy, adjustable heat capacity, large lighting area, independent heat collection, and low cost of use.

Description

A volumetric flat plate heat collector

Technical field:

The utility model relates to a volumetric flat plate heat collector, which belongs to the technical field of comprehensive utilization of solar energy.

Background technique:

At present, among the solar collector products, there are mainly all-glass vacuum tube collectors and metal flow channel flat plate collectors. The all-glass vacuum tube collectors have the following series of problems: the assembly and transportation of glass tubes is inconvenient, and the on-site construction volume is large. Operated by professional workers; the seal between the glass tube and the metal container depends on the rubber ring, which has a short life and poor sealing reliability; because the glass tube is in the form of a blind tube, it is not easy to clean after the scale is deposited after the fluid is heated; the silicone seal and the brittleness of the glass are limited The pressure capacity of the system is limited, and the use is limited; the thermal insulation performance of the glass tube depends on the vacuum interlayer, and the maintenance of the vacuum degree is high. The glass tube is in direct contact with the heated fluid, and its breakage can easily cause system failure. The above problems determine that the all-glass vacuum tube water heater is difficult to realize the integrated design of the building. The metal runner type flat plate collector realizes that the heated fluid does not touch the glass, but due to the solar radiation energy, it is instant. The metal runner type flat plate collector is equivalent to a glass vacuum tube, which only plays a heating role and must be stored immediately, that is It needs to be equipped with a water pump to ensure that the heating fluid is forced to circulate and exchange heat between the heat collector and the heat preservation water tank, relying on electric energy, or combining itself with the heat preservation water tank, the system cost is high. One of the stuffy and flat box-type solar water heaters with large heat capacity has problems such as single structure, backward technology, poor heat preservation, narrow use range, and inability to meet the requirements of the construction industry. It has not yet formed a production scale and is facing the situation of being eliminated by the market.

Invention content:

The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a simple structure, beautiful appearance, convenient handling, wide range of use, strong pressure bearing capacity, storage of heat transfer and storage medium, no need for electric energy, adjustable heat capacity, Large lighting area, independent heat collection, and low-cost volumetric flat-plate heat collector.

The purpose of this utility model can be achieved through the following measures: a volumetric plate type heat collector, which is characterized in that it has a frame, and the frame is sequentially provided with a thermal insulation bottom plate, a thermal insulation board and a thermal insulation layer, and the inside of the frame is provided with Insulation side panels, at least one thermal collector unit is provided on the thermal insulation layer in the frame. The thermal collector unit is composed of a thermal collector with a heat-absorbing layer attached to the surface and two thermal collector inlet and outlet pipes. The water pipes are respectively connected with two water inlet and outlet pipes on the frame body, and at least one layer of transparent cover plate is arranged on the upper part of the frame body.

In order to further realize the purpose of the present utility model, at least one heat collecting plate unit is provided on the thermal insulation layer in the frame, and the heat collecting plate unit is composed of a heat collecting plate and a flow guide tube attached to the heat absorbing layer on the surface, and the flow guide tube The two ends are respectively connected with two water inlet and outlet pipes on the frame body.

In order to further realize the purpose of the utility model, the frame body is provided with a lower supporting plate.

In order to further realize the object of the present utility model, the transparent cover includes an upper transparent cover and a lower transparent cover.

In order to further realize the purpose of the utility model, the transparent cover plate is made of toughened glass or a photovoltaic power generation panel.

In order to further achieve the purpose of the utility model, the transparent cover is sealed by a sealing assembly and fixed by a stop screw.

In order to further realize the purpose of the utility model, the heat collector is flat oval.

In order to further realize the purpose of the utility model, the heat collector unit is fixed by a stop pressing plate on the frame.

In order to further realize the purpose of the utility model, the water inlet and outlet pipes are sealed with sealing plugs.

In order to further realize the purpose of the present utility model, the frame is provided with an installation pad.

Compared with the prior art, the utility model can produce the following positive effects: the utility model heat collector has the characteristics of simple structure, symmetrical design, convenient transportation, ready to use, no electricity, no professional installation and debugging, etc. Since the heat collector itself adopts a volumetric flat oval cross-section design, it has strong pressure bearing capacity, stores heat transfer and storage medium, adjustable heat capacity, independent heat collection, and low cost of use. The cover plate is made of toughened transparent glass, which has strong hail resistance. And the radiation heat loss is small. In addition, the cover plate can be increased or adopt transparent photovoltaic power generation panels, which improves the actual use value and application range of the utility model. The structure, material selection and assembly welding technology of this product have reached a very mature level, with strong corrosion resistance and various installation methods (balcony type, skylight type, sunshade type, etc.), so that The independent use of solar collectors is perfectly combined with the building structure, and the recycling value is high. It is equipped with reliable heating measures of electricity or gas, and can realize fully automatic control. It is the current flat panel collector combined with solar energy utilization in civil buildings. The direction of industry development.

Description of drawings:

Fig. 1 is a partial cross-sectional view of a first embodiment of the present utility model;

Fig. 2 is a partial sectional view of a second embodiment of the present invention;

Fig. 3 is a cross-sectional view of a third embodiment of the present invention;

FIG. 4 is a schematic plan view of a third embodiment of the present invention;

Fig. 5 is a cross-sectional view of a fourth embodiment of the present utility model;

Fig. 6 is a schematic plan view of a fourth embodiment of the present invention.

Detailed ways:

Below in conjunction with accompanying drawing, the best implementation mode of the present utility model is described in detail:

Embodiment 1: a kind of volumetric plate type heat collector (referring to Fig. 1), it has frame body 10, is provided with insulation bottom plate 1, heat insulation board 2 and insulation layer 3 successively in frame body 10, and frame body 10 inner side is provided with There are heat-insulating side plates 11, and a heat-collecting tank unit 18 is arranged on the heat-insulating layer 3. The heat-collecting tank unit 18 is fixed by the stop pressing plate 9 on the frame body 10, and the heat-collecting tank unit 18 is attached to the heat-absorbing layer 4 on the surface and set The heat collector 15 of two heat collector inlet and outlet water pipes 21 is arranged to form, and the heat collector 15 is flat oval. Two inlet and outlet water pipes 21 of the heat collector are respectively connected with two inlet and outlet water pipes 13 on the frame body 10, and the inlet and outlet water pipes 13 are sealed with a sealing plug 12, and the upper part of the frame body 10 is provided with an upper transparent cover plate 5 and a lower transparent cover plate 6, The lower transparent cover plate 6 is made of toughened glass, fully sealed, and the upper transparent cover plate 5 is made of a transparent photovoltaic power generation panel. The upper transparent cover plate 5 and the lower transparent cover plate 6 are sealed by a sealing assembly 7 and fixed by a stop screw 8. The body 10 is provided with a mounting block 14 .

Embodiment 2, a kind of volumetric plate type heat collector (referring to Fig. 2), it has frame body 10, is provided with insulation base plate 1, heat insulation board 2 and insulation layer 3 successively in frame body 10, and frame body 10 inner side is provided with There are heat-insulating side plates 11, and a heat-collecting tank unit 18 and a heat-collecting plate unit 16 are arranged on the heat-insulating layer 3, and the heat-collecting tank unit 18 is fixed by the stop pressing plate 9 on the frame body 10, and the heat-collecting tank unit 18 is fixed by the surface The heat-absorbing layer 4 is attached and is composed of a heat-collecting tank 15 with two heat-collecting tank inlet and outlet pipes 21. The heat-collecting plate unit 16 is composed of a heat-collecting plate 19 and a draft tube 20 with a heat-absorbing layer 4' attached to its surface. Both ends of the inlet and outlet pipes 21 of the heat collector and the two ends of the diversion pipe 20 are respectively connected with two inlet and outlet pipes 13 on the frame body 10, and the inlet and outlet pipes 13 are sealed with sealing plugs 12, and the upper part of the frame body 10 is provided with an upper transparent cover plate 5 and the lower transparent cover plate 6, the lower transparent cover plate 6 is made of tempered glass, fully sealed, the upper transparent cover plate 5 is made of a transparent photovoltaic power generation panel, the upper transparent cover plate 5 and the lower transparent cover plate 6 are sealed by a sealing assembly 7, and are sealed by The stop screw 8 is fixed, and the frame body 10 is provided with a mounting pad 14 .

Embodiment 3, a kind of volumetric plate type heat collector (referring to Fig. 1, Fig. 3, Fig. 4), its structure is basically the same as embodiment 1, only the quantity of heat collecting tank unit 18 is multiple (the present embodiment is 9 ), arranged in an array, and the frame body 10 is provided with a lower supporting plate 17, and the top of the frame body 10 is only provided with an upper transparent cover plate 5, and the lower transparent cover plate 6 is removed (in order to save costs).

Embodiment 4, a volumetric flat-plate heat collector (see Fig. 2, Fig. 5, Fig. 6), its structure is basically the same as that of Embodiment 2, except that the number of heat collecting tank unit 18 and heat collecting plate unit 16 is multiple (there are 6 heat collecting tank units 18 in this embodiment, and 3 heat collecting plate units 16), arranged in an array, and the frame body 10 is provided with a lower supporting plate 17, and the top of the frame body 10 is only provided with an upper transparent Cover plate 5, and remove lower transparent cover plate 6 (in order to save cost).

When using the utility model, the heat absorbing layer 4 of the heat collector 15 has a good effect of absorbing solar radiation, directly contacts with the heat storage medium, has a large lighting area, high heat conduction and convection efficiency, no combined thermal resistance, and the heat capacity can be adjusted. Regional differences increase the heat collector unit 16 to increase the temperature rise of the medium; the design of the all-metal flow channel makes the whole system have strong pressure bearing capacity and good stress resistance; the lower transparent cover plate 6 is made of tempered glass, fully sealed, and reduces the heat collector unit 18 or heat collector unit 16 for low-temperature radiation heat loss, and the upper transparent cover plate 5 adopts a transparent photovoltaic power generation panel, which comprehensively utilizes solar energy resources according to the different characteristics of solar power generation and thermal radiation bands; the frame body 10 is provided with an insulation layer 3. The heat insulation board 2, the heat preservation bottom plate 1 and the heat preservation side plate 11 make the loss of heat stored in the system small, and special working fluid can be used as the heat transmission storage medium to ensure the adaptability of the system to low temperature environments. The utility model adopts building material-based plate-type thermal insulation layer and alloy frame body, symmetrical structure design, material selection and welding technology have reached a very mature level, strong corrosion resistance, and diverse installation methods (balcony type, skylight type, sunshade type, etc.) ), so that the solar collectors can be used independently by households without affecting the view of the building structure, and the value of recycling is high. It is equipped with reliable heating measures of electricity or gas, which can realize fully automatic control.

Claims (10)

1, a kind of positive displacement flat plate collector, it is characterized in that it has framework (10), be provided with insulation base plate (1) in the framework (10) successively, thermal insulation board (2) and heat-insulation layer (3), framework (10) inboard is provided with insulation side board (11), framework (10) inner thermal insulating layer (3) is provided with at least one thermal-arrest courage unit (18), thermal-arrest courage unit (18) is by surface attachment heat-sink shell (4) and be provided with thermal-arrest courage (15) formation that two thermal-arrest courages go out oral siphon (21), two thermal-arrest courages go out oral siphon (21) respectively with framework (10) on two go out oral siphon (13) and be connected, the top of framework (10) is provided with one deck transparent cover plate at least.

2, a kind of positive displacement flat plate collector according to claim 1, it is characterized in that described framework (10) inner thermal insulating layer (3) is provided with at least one thermal-arrest plate unit (16), thermal-arrest plate unit (16) is made of the thermal-arrest plate (19) of surface attachment heat-sink shell (4 ') and mozzle (20), mozzle (20) two ends respectively with framework (10) on two go out oral siphon (13) and be connected.

3, a kind of positive displacement flat plate collector according to claim 1 and 2 is characterized in that described framework (10) is provided with bottom plate (17).

4, a kind of positive displacement flat plate collector according to claim 1 is characterized in that described transparent cover plate comprises transparent cover plate (5) and following transparent cover plate (6).

5,, it is characterized in that described transparent cover plate adopts safety glass or photovoltaic generation plate to make according to claim 1 or 4 described a kind of positive displacement flat plate collectors.

6, according to claim 1 or 4 described a kind of positive displacement flat plate collectors, it is characterized in that described transparent cover plate by black box (7) sealing, and fixing by limit screw (8).

7, a kind of positive displacement flat plate collector according to claim 1 is characterized in that described thermal-arrest courage (15) is flat ellipse.

8, a kind of positive displacement flat plate collector according to claim 1 is characterized in that described thermal-arrest courage unit (18) is fixing by the stop pressing plate (9) on the framework (10).

9, a kind of positive displacement flat plate collector according to claim 1 is characterized in that describedly going out oral siphon (13) with sealing-plug (12) sealing.

10, a kind of positive displacement flat plate collector according to claim 1 is characterized in that being provided with in the described framework (10) installation cushion block (14).

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