CN201897327U

CN201897327U - Progressive circulating heating solar thermal collector

Info

Publication number: CN201897327U
Application number: CN2010205517420U
Authority: CN
Inventors: 李卫山; 于占臣; 李昌
Original assignee: SHANDONG HAINADE SOLAR ENERGY CO Ltd
Current assignee: SHANDONG HAINADE SOLAR ENERGY CO Ltd
Priority date: 2010-10-08
Filing date: 2010-10-08
Publication date: 2011-07-13
Anticipated expiration: 2020-10-08

Abstract

The utility model discloses a progressive circulating heating solar thermal collector; circulating tubes are arranged in parallel, each circulating tube is respectively provided with a water inlet circulating tube at the lower part and a water outlet circulating tube at the upper part, each glass heat collecting tube is wrapped outside the water inlet circulating tube and the water outlet circulating tube of each circulating tube, and a plurality of circulating tubes are sequentially arranged from bottom to top. The progressive circulating heating solar thermal collector has the advantages of high heating speed and high heating efficiency, and can be applied to the field balcony wall hanging solar water heaters and other solar water heaters.

Description

Laddering circulation heating solar heat-collector

Technical field

The utility model belongs to technical field of solar water heaters, especially relates to a kind of laddering circulation heating solar heat-collector.

Background technology

Present balcony wall-hanging solar water heater mainly contains following several form: the one, and U type tubular type balcony wall-hanging solar water heater, U type pipe is to be converted into the U type with φ 8 copper pipes or φ 8 stainless steel tubes, form by the welding runner, add heat-conducting medium by the heat exchanger in the water tank, utilize vacuum tube heating heat-conducting medium, through the water in the natural circulation heating water tank, be to make water reach uniform temperature by secondary heat exchange, spring, summer, 60 ℃ of the average water temperatures of Qiu Sanji, winter, average water temperature was 40 ℃, U type tubular type balcony wall-hanging solar water heater is water in the heating water tank by heat exchange, therefore, certain heat loss is arranged in heat transfer process, so, hot water temperature in the water tank is limited, and the efficiency of heating surface is low; The 2nd, single hose balcony wall-hanging solar water heater, be to link together with many stainless steel single tubes and water flow passage, utilize the water in the vacuum tube heating single tube, by the current Natural Circulation, make water heating in the water tank, because the logical circulation of current is slow, so the water temperature in the water tank on average reaches 65 ℃ at spring, summer, Qiu Sanji, because current are at a pipe, hot water is up walked from one side, and cold water is past dirty from one side, so certain resistance is arranged, the water Natural Circulation is slow, and the heating water temperature is restricted, and thermal efficiency ratio U type pipe height a bit; The 3rd, flat balcony wall-hanging solar water heater, flat plate collector is to plate black chromium film by plating mode on copper sheet, to be coated with black chromium film copper sheet through supersonic welder is welded on φ 10 copper pipes, make the thermal-arrest plate, welding is connected a plurality of thermal-arrest plates on the water pipe through main body, form flat plate collector, couple together, add heat-conducting medium with heat exchanger in the water tank, heat collector is collected sunlight heating heat-conducting medium, by the water in the heat exchanger heating water tank, make water intensification gradually, summer, average water temperature was 60 ℃, water temperature in winter is at 40 ℃, because heat medium arrives heat exchanger by circulation through Natural Circulation, adds hot water again, the thermal efficiency is low, in the winter time owing to there is not insulation, so heat has lost a part again, therefore, the flat-plate collector thermal efficiency is low.More than three kinds of endless form, the thermal efficiency is generally lower, water temperature is not high, especially in the winter time, water temperature is lower.

Summary of the invention

The purpose of this utility model is: the technical problem of avoiding prior art to exist provides a kind of laddering circulation heating solar heat-collector fast, that the thermal efficiency is high that heats.

The technical solution of the utility model is: comprise some glass heat collection tubes and circulation pipe, each circulation pipe is arranged in parallel, every circulation pipe have one below the fill cycle pipe and superincumbently go out water-circulating pipe, the fill cycle pipe of every circulation pipe and go out water-circulating pipe end at one end and be communicated with, every glass heat collection tube wraps in the fill cycle pipe and the outside that goes out water-circulating pipe of every circulation pipe, some circulation pipes are arranged in order from lower to upper, the water-circulating pipe that goes out between the adjacent circulation pipe is connected in other end end with the fill cycle pipe, the fill cycle pipe that is positioned at nethermost circulation pipe connects storage tank by pipeline, the water-circulating pipe that goes out that is positioned at uppermost circulation pipe connects storage tank by pipeline, and recirculated water is entered by the fill cycle pipe of nethermost circulation pipe, go out the water-circulating pipe water outlet by uppermost circulation pipe.Circulation pipe can adopt corrugated stainless steel tubing.

The beneficial effects of the utility model are: cold water enters water circulation pipeline from nethermost fill cycle pipe, heat by first order vacuum heat collection pipe, recirculation flows into second level vacuum heat collection pipe heating, water temperature is higher than first order heating, recirculation flows into the heating of third level vacuum heat collection pipe, and so one-level one-level heating is heated up to N level vacuum heat collection pipe, be recycled to storage tank, so repeatedly circulation.All concentration of energy of heat collector are on a water flow passage, and water heats the back light specific gravity, and cold water is than heavy, and Natural Circulation speeds up like this, and it is fast that the storage tank water temperature is risen, and the water temperature height can reach 80 ℃ summer, can reach 55 ℃ winter; Owing to be directly to add hot water, without secondary heat exchange, reduced heat loss, make the water heating fast, flow velocity is fast, can be applicable to balcony wall-hanging solar water heater and other solar water heater field.

Description of drawings

Fig. 1 is the structural representation of the laddering circulation heating solar heat-collector of the utility model;

Fig. 2 is an A-A cutaway view shown in Figure 1;

Fig. 3 is an operating position schematic diagram of the present utility model.

The specific embodiment

From the A-A cutaway view of the structural representation of the laddering circulation heating solar heat-collector of the utility model shown in Figure 1 and Fig. 2 as can be seen, the utility model comprises some glass heat collection tubes 6 and circulation pipe 7, circulation pipe 7 is a corrugated stainless steel tubing, each circulation pipe 7 horizontally set, be arranged in parallel, every circulation pipe 7 have one below fill cycle pipe 5 and superincumbently go out water-circulating pipe 4, the fill cycle pipe 5 of every circulation pipe 7 and go out water-circulating pipe 4 and be arranged in parallel, and end at one end is communicated with, every glass heat collection tube 6 wraps in the fill cycle pipe 5 and the outside that goes out water-circulating pipe 4 of every circulation pipe 7, makes glass heat collection tube 6 heating fill cycle pipes 5 and goes out water-circulating pipe 4.Some circulation pipes 7 are arranged in order from lower to upper, and the radical of circulation pipe 7 and glass heat collection tube 6 is decided according to water tank volume and actual needs, can adopt quantity such as 11,12,18,24.The water-circulating pipe 4 that goes out between the adjacent circulation pipe 7 is connected in other end end 1 with fill cycle pipe 5 and communicates, and is surrounded by insulation material on the tube connector.

From operating position schematic diagram of the present utility model shown in Figure 3 as can be seen, the fill cycle pipe 5 that is positioned at nethermost circulation pipe 7 connects storage tank 8 by pipeline 2, the water-circulating pipe 4 of going out that is positioned at uppermost circulation pipe 7 connects storage tanks 8 by pipeline 3, and recirculated water is entered, gone out water-circulating pipe 4 water outlets by uppermost circulation pipe 7 by the fill cycle pipe 5 of nethermost circulation pipe 7.Be surrounded by insulation material on pipeline 2, the pipeline 3.

Operation principle of the present utility model is as follows: cold water enters water circulation pipeline from pipeline 2, heat by first order vacuum heat collection pipe, recirculation flows into second level vacuum heat collection pipe heating, water temperature is higher than first order heating, recirculation flows into the heating of third level vacuum heat collection pipe, so one-level one-level heating, heat up to N level vacuum heat collection pipe, be recycled to storage tank by pipeline 3, circulation so repeatedly, water heating back light specific gravity, cold water is than heavy, Natural Circulation speeds up like this, and it is fast that the storage tank water temperature is risen.The logical endless form of its current is the incremental heating, by the first order vacuum heat collection pipe heating of bottom circulation pipe, upwards again to N vacuum heat collection pipe heating.Because one of water flow passage, heating-up temperature is high more, and the flow velocity of water is fast more, and the heating of the water in the water tank is fast more like this, and in several cycles of this Natural Circulation, its water temperature is quite high, and summer, water temperature can reach 80 ℃, and water temperature in winter on average can reach 55 ℃.

Selecting for use according to different situations of the utility model material selected, fill cycle pipe and go out the diameter of water-circulating pipe: (1), adopt 304 corrugated stainless steel tubings: G3/8 cun, G1/2 cun, G3/4 cun, G1 cun; (2) adopt 304 stainless steel tubes: φ 16, φ 20, φ 25, φ 33; (3) adopt purple steel pipe: φ 16, φ 20, φ 25, φ 33.Select the vacuum heat collection pipe of respective diameters according to fill cycle pipe and the diameter that goes out water-circulating pipe.

Claims

1. laddering circulation heating solar heat-collector, comprise some glass heat collection tubes (6) and circulation pipe (7), it is characterized in that: described each circulation pipe (7) is arranged in parallel, every circulation pipe (7) have one below fill cycle pipe (5) and superincumbently go out water-circulating pipe (4), the fill cycle pipe (5) of every circulation pipe (7) and go out water-circulating pipe (4) end at one end and be communicated with, every glass heat collection tube (6) wraps in the fill cycle pipe (5) of every circulation pipe (7) and goes out the outside of water-circulating pipe (4), some circulation pipes (7) are arranged in order from lower to upper, the water-circulating pipe (4) that goes out between the adjacent circulation pipe (7) is connected in other end end (1) with fill cycle pipe (5), the fill cycle pipe (5) that is positioned at nethermost circulation pipe (7) connects storage tank by pipeline (2), the water-circulating pipe (4) that goes out that is positioned at uppermost circulation pipe (7) connects storage tank by pipeline (3), and recirculated water is entered by the fill cycle pipe (5) of nethermost circulation pipe (7), go out water-circulating pipe (4) water outlet by uppermost circulation pipe (7).

2. laddering circulation heating solar heat-collector according to claim 1 is characterized in that: described circulation pipe (7) is a corrugated stainless steel tubing.