CN2434622Y

CN2434622Y - Efficiency plate recess type solar Water heater

Info

Publication number: CN2434622Y
Application number: CN00231391U
Authority: CN
Inventors: 李沂清; 李娟�; 李海涛
Original assignee: 李沂清
Priority date: 2000-04-03
Filing date: 2000-04-03
Publication date: 2001-06-13
Anticipated expiration: 2010-04-03

Abstract

The utility model relates to an efficiency plate recess type solar water heater, which is characterized in that a thin glass plate which closes over a group of glass recesses is coated with an aluminium-nitrogen/aluminium selective solar absorbing coating; the thin glass plate and the glass recesses are arranged in a rectangular glass casing in vacuum to form a thin solar absorbing plate; a water tap which is inserted in a heat insulating water tank is arranged above the thin absorbing plate; water in the recesses and the water tank form heat convection; the heat absorbing coating area of the high efficiency plate recess type solar water heater is 73 percents more than that of a vacuum pipe water heater in the present market. Namely, under the same light irradiation, the utility model can produce hot water of 73 percents more than that of a vacuum pipe water heater. For the manufacture processing, main parts can all be made by mould hot forming. The utility model has the advantages of simple manufacturing processing and is suitable for large-scale production.

Description

High-efficient flat-plate fluted body solar water heater

The utility model relates to solar water heater, a kind of high-efficient flat-plate fluted body solar water heater of saying so more specifically.

Current solar water heater kind is a lot, and dull and stereotyped vexed solarization type, vacuum tube heat collection type and vacuum heat-pipe type, currently marketed product mostly are the vacuum tube collector of Solar Energy ﹠ Electronic Factory, Qinghua Univ development; Another kind of with the do product of heat pipe type vacuum pipe heat collection type of representative of Beijing solar energy research, but product is less relatively on the market, and price is higher relatively to be one of reason.

The vacuum tube heat collection type has higher solar collecting performance, but it is complicated to exist technology, the process equipment costliness, problems such as one-time investment is big, but topmost shortcoming is the heat absorbing coating on the interior pipe only account for monoblock diffuse reflector area 50%, between the thermal-collecting tube 30 mm distance will be arranged, this can not intensively again cause because of leading to the attemperater pore.Moreover same area curved surface is good not as the plane light transmission, and heat absorption efficiency is also not as the plane height; With Beijing solar energy research do the representative pipe type solar heat collector heat, its advantage is that the heat conduction is fast, but deficiency is will be with a large amount of red coppers or other metals, heat pipe itself is exactly the complicated high vacuum product of a kind of technology, in order to guarantee the vacuum leakproofness of heat pipe outer vestlet of living in, outer vestlet glass and metal heat pipe are sealed, make and be in for a long time in the very big various environment of difference variation, keep metal and glass-sealed sealing, the gas leakage of long-time no crack is easier said than done, this complex process, difficulty is big, consume a large amount of copper materials again, certainly will cause the expensive of product, its product is difficult to be promoted, perhaps this reason of seldom seeing on market of product just.Another point also is noted that same, and pipe type solar heat collector heat also exists on monoblock diffuse reflector area, effectively the low defective of endotherm area occupation rate.

The purpose of this utility model at the deficiency of above-mentioned solar water heater, provides a kind of heat absorption efficiency height, and technology is simple relatively, and full glass is fit to use mold hot die mould, the novel Cheap solar energy water heater that can be mass-produced.

The utility model scheme can adopt measure to realize.

On the square glass plate of a block length, produce many rectangular recess with touching the tool hot forming, capping one deck thin glass plate on the rectangular recess plate is formed the middle thin rectangular shape body that many BODY WITH SQUARE APERTURE are arranged, and is coated with gradual change aluminium one nitrogen/aluminium solar selective heat-absorbing coating on the thin rectangular shape body.The public water that each groove all communicates in the two ends sealing-in of thin rectangular shape body is chewed; Perhaps each square slotted eye road of an end is shut, and locating piece in the sealing-in, only public water is chewed (shown in figure one) in another auspicious sealing-in.For the thin rectangular shape body is in the vacuum, make a big slightly rectangle outer cover, at two ends and water is chewed or locating piece is sealed, make the thin rectangular shape body that is in the outer cover become the state in the vacuum that is suspended in.Destructiveness and the glass outer cover of considering atmospheric pressure again can not be too thick, so the thin rectangular shape body can not be too wide, and 10 centimetres of wide being advisable.Locating piece in the sealing-in of the bottom of glass outer cover, upper end water are chewed and are injected in the attemperater that is in the top, and water tank and water seal with silicon rubber loop between chewing.If want to connect the Outer Tube thermal cycle with water tank, the water of lower end is chewed with the glass outer cover and is sealed, and chew by the water at two ends and be positioned on the diffuse reflector this moment.

Further describe the utility model below in conjunction with accompanying drawing.

Fig. 1 is a main schematic diagram of the present utility model.

Wherein: 1, Shui Zui, 2, groove, 3, the groove cover plate, 4, the rectangle outer cover, 5, locating piece between glass outer cover and the thin rectangular shape body, 6, glass outer cover locating piece.

Fig. 2 is the sectional drawing of the utility model Fig. 1

Wherein: 7, thin rectangular shape body section, 8, glass outer cover section.

Fig. 3 is the overall schematic that each unit of the utility model is assembled together.

Wherein: 9, rectangle outer cover locator rod, 10, hard rubber locator, 11, the diffuse reflector frame, 12, the thin rectangular plate heat absorbing units, 13, water is chewed the tank seal circle, 14, attemperater, 15, spillway hole, 16, the inlet opening, 17, insulation material, 18, dewatering orifice, 19, support, 20, zinc-plated diffuse reflector.

Water in the water tank flows into (shown in Figure 1 is that an end has water to chew situation) in each thin rectangular shape body groove 2 grade, cover glass is pulled and is coated with gradual change aluminium one nitrogen/aluminium solar selective heat-absorbing coating and is among the vacuum on the thin rectangular shape body, the sunlight heat that is injected on the heat absorbing coating is irreversible (sub-fraction is penetrated by the width of cloth) basically, water is heated afterwards and the formation of the water in the attemperater 14 thermal convection current in the groove, water in the whole attemperater 14 is heated, water boiling in water tank, steam flows out from spillway hole 15.

According to the utility model, as if 110 millimeters of rectangle outer cover width, length is 1100 millimeters, is to place 8 thin rectangular plate unit on 900 millimeters at the diffuse reflector width, and the heat absorbing coating area is 9152 centimetres ², on same width, only put into 12 vacuum heat absorbing pipes of same length above the diffuse reflector, its heat absorbing coating area is 5280 centimetres ²The utility model heat absorbing coating area Duos 73.3% than vacuum tube type heat absorbing coating area, that is to say that on same illumination and same diffuse reflector area, the utility model is Duoed the hot water of production 73.3% same temperature than vacuum tube water heater in the market.If calculate at 4 in afternoon from last 9, if the mean power of solar energy is 750 watts/meter ², the utility model scheme can calculate every square metre in theory can produce 106 kilograms of hot water that rise to 60 ℃ from 20 ℃, and boiling water is 53 kilograms.

Should also be noted that the utility model heat absorption set of data is glass entirely, and be rectangular channel that can adopt and simply touch the tool hot forming, production technology is simpler than vacuum heat absorbing pipe technology, is fit to mass mechanized production, cost will reduce significantly.

To attemperater, prior aries such as support repeat no more.

Claims

1, a kind of efficient plane fluted body solar water heater, comprise attemperater, full glass high-efficiency plane groove type solar energy heat absorbing thin rectangular shape body unit, and diffuse reflector, hard rubber thin rectangular shape body locator, feature of the present utility model is in rectangle glass outer cover vacuum, place one have many dull and stereotyped grooves (2) that are filled with water above, sealing-in one deck and is had the coated glass thin plate (3) that absorbs solar energy, form the heat absorption thin rectangular shape body that many rectangle ducts that are filled with water are arranged, locating piece (5) after the bottom is sealed is sealed with rectangle glass outer cover (4) bottom, bottom and the rectangle glass outer cover of chewing (1) at top and public water are sealed, public water is chewed (1) and is inserted in the attemperater (6), and is sealed by silicon rubber loop.

2, root a tree name claim 1 is described, and dull and stereotyped fluted body solar water heater is characterized in that on Duo Tiaoshui groove (2), sealing-in one deck have the glass plate (3) that absorbs solar film plating.

3, root a tree name claim 1 or 2 is described, and dull and stereotyped fluted body solar water heater is characterized in that in the attemperater above many public water of the rectangular channel that is filled with water are chewed insertion, public water chew and attemperater between seal with silicon rubber loop.

4, root a tree name claim 1 or 2 is described, and dull and stereotyped fluted body solar water heater is characterized in that the bottom that the common public water of rectangle glass outer cover (4) and top and multiple-grooved is chewed (1) seals; Seal with the locating piece of multiple-grooved thin rectangular shape body (5) rectangle glass outer cover (4) bottom, makes multiple-grooved thin rectangular shape body be positioned at the centre of rectangle glass outer cover (4).

5, root a tree name claim 1 or 2 is described, and dull and stereotyped plate fluted body solar water heater is characterized in that the locating piece (6) of rectangle glass outer cover bottom inserts in the hard rubber locator holes (2).