CN2202891Y

CN2202891Y - Solar energy water heater of normal glass tube

Info

Publication number: CN2202891Y
Application number: CN94207541U
Authority: CN
Inventors: 许清波
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-04
Filing date: 1994-04-04
Publication date: 1995-07-05
Anticipated expiration: 2004-04-04

Abstract

The utility model relates to a solar energy water heater with a normal glass tube, which provides the novel device of the solar water heater. The utility model is characterized in that a normal glass tube is used to replace the metal discharge tube which is connected with an upper and a lower collecting tubes in the water circulating system of the water heater, and magnesite foam plates are used for replacing a metal absorber plate, a heat-insulating layer and the shell of the metal water heater. Because the normal glass tube is used for replacing the metal (copper, steel, etc.) tube, the steel product is saved. Meanwhile, the defects of high cost easy corrosion and short life time of the metal product are effectively overcome. Because the magnesite foam plates are used for replacing the metal absorber plate, the heat-insulating layer and the shell of the metal water heater, the trouble caused by assembling with a plurality of pieces is reduced. The water heater has the advantages of material saving, low cost and easy installation. The utility model is convenient for the scale production.

Description

Solar energy water heater of normal glass tube

The utility model relates to solar water heater, particularly the tube-plate solar heater.

The existing tube-plate solar heater in domestic market, mainly by daylighting plate glass face, upper and lower collector, comb, absorber plate, heat-insulation layer and metal shell are formed.Wherein upper and lower collector, comb, absorber plate, heat-insulation layer and metal shell are metal tube, sheet material material (steel, copper entirely ...), these metal materials account for more than 80 percent of whole water heater totle drilling cost.Clearly make this water heater and will exhaust a large amount of metal tubes, sheet material, make complexity, cost is also high, metallic article also has perishable simultaneously, the defective that life-span is short, this has just directly influenced in the economically less developed region, especially promoting the use of in vast rural area, samll cities and towns.

The purpose of this utility model is that a kind of improved solar water heater will be provided.It not only can save a large amount of metal materials (pipe plate), it is a lot of that the water heater cost is reduced, face and can overcome that metallic article is perishable, defective that the life-span is short, simplified manufacture craft simultaneously, be convenient to that socialization production makes the product material-saving, cost is low, the life-span is long, easily install, thereby reach in vast cities and towns, the purpose of solar water heater is used in the rural area.

The purpose of this utility model is achieved in that the thermal-arrest part to the tube-plate solar heater, and water circulation system is done bigger improvement; Promptly replace heat absorption metallic plate, heat-insulation layer and metal shell with a surperficial blacking and reeded magnesia foam plate, becoming many is assembled into and gives the system integral piece, replace all metal combs in the device with the simple glass pipe, so both saved many metal tube sheet materials, also reduced cost, simplified the frock program, it is short to have eliminated metal cost height, perishable, life-span effectively, and defectives such as inconvenience are installed, and reaches to reduce cost, be beneficial to installation, the purpose that is extensive use of.

Below with reference to accompanying drawing utility model is described in further detail.

Fig. 1 is a kind of overall structure elevation of the utility model.

Fig. 2 is upper and lower collector of the present utility model and comb connection layout.

Fig. 3 is the cutaway view of Fig. 1 simple glass tube solar water heater along the A-A line.

Among the figure: 1, upper header 2, lower collector pipe 3, glass comb 4, magnesia foam plate (shell) 5, glass 6, heat-sink shell 7, heat-insulation layer 8, comb pipe nipple (steel) 9, rubber tube pipe nipple

Describe details and working condition in detail below in conjunction with Fig. 1 according to the concrete device that the utility model proposes.

Be welded in comb pipe nipple (8) and several glass comb (3) on upper header (1) lower collector pipe (2), get up by rubber leather hose pipe nipple (9) socket, form the peripheral passage, constitute water heater in the water heater, here be welded in all comb pipe nipples (8) on the upper and lower collector, it is horizontal flat vertical to require, and external diameter is identical with the external diameter of upper and lower collector connection place aperture, glass comb (3), and inside and outside smooth no burr.Whole heater is close on the magnesia foam plate (4), places in the closed enclosure of magnesia foam plate (4) and glass (5) formation.When water enters the peripheral passage along direction shown in the arrow, the closed enclosure that magnesia foam plate (4) and glass (5) constitute by illumination after, most of 0.3-3 micron thermal radiation ripple sees through glass smoothly in the light wave, magnesia foam plate inner surface by the heater of device inner surface blacking and surperficial blacking and band groove absorbs, change the long wave radiation ripple greater than 4 microns into, at this moment long wave radiation can not have been gone out through glass-reflected again.Like this, accept solar radiation in the device and in rising temperature and the glass comb (3) contained water carry out heat exchange, water temperature is raise, because hot water volume to weight ratio cold water unit weight is little, so enter the cold water of glass comb (3) heats the back rising remittance upper header (1) from lower collector pipe (2), again along direction of arrow output hot water, constantly accept the waste heat after the hydrothermal exchange in illumination intensification and all glass combs (3) simultaneously in the device, also make and form a heat space in the device, by conduction, the width of cloth is penetrated, convection type, the magnesia foam plate (4) that makes the surface be coated with the black-tape groove absorbs, because of magnesia foam plate is a magnesia;

Stone flour, mineral wool, expanded perlite (5:1:2:1) system of giving in proportion form, and interior-asthenia and exterior-sthenia so plate can be kept higher temperature for a long time, reaches heat insulating effect.

Fig. 2 mainly shows the method for attachment of upper header (1), lower collector pipe (2) and glass comb (3).All equidistantly on upper header, the lower collector pipe be welded with some equidistant comb pipe nipples (8), get up with several glass combs (3) socket with the rubber tube pipe nipple, for preventing pressurized seepage after the water flowing, available twice thin wire is tightened at the socket place two ends.

Among Fig. 3, heat-sink shell (6) is exactly a contact-making surface of being with groove and glass comb (3) on the magnesia foam plate, and its inner surface scribbles Berlin black, and whole magnesia foam plate also is the housing of solar water heater.

Claims

1, simple glass tube solar water heater is a peripheral passage that mainly is communicated with upper and lower collector (1), (2) and glass comb (3) for housing by magnesia foam plate (4), the hot water apparatus that constitutes, it is characterized in that having the comb pipe nipple (8) of glass comb (3) on putting rubber tube pipe nipple (9) and being welded in upper and lower collector (1), (2) to be communicated with and form the peripheral passage, constitute the device internal heater, and be close in the groove of magnesia foam plate (4).

2, simple glass tube solar water heater according to claim 1 is characterized in that all glass combs (3) brush berlin blacks paint black, is thermophore after the water flowing illumination.

3, simple glass tube solar water heater according to claim 1 and 2, the distance that it is characterized in that being welded between all the comb pipe nipples (8) on upper and lower collector (1), (2) is equal, horizontal vertically flat, the external diameter of the external diameter of comb short tube (8) and several glass combs (3) and identical with the aperture of upper and lower collector (1), (2) connection place, and interior light is slided no burr outward.

4, simple glass tube solar water heater according to claim 1 and 2 is characterized in that constituting the magnesia foam plate band groove of one, and inner surface is coated with Berlin black, the magnesia in its structure,

Stone flour, mineral wool, expanded perlite ratio are that 5:1:2:1 solidifies the back interior-asthenia and exterior-sthenia, can follow closely and can saw.