CN2620840Y

CN2620840Y - Thin pill box type high efficient heat-collecting plate with volume-increasing edge

Info

Publication number: CN2620840Y
Application number: CNU032346840U
Authority: CN
Inventors: 张喜国
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-05-29
Filing date: 2003-05-29
Publication date: 2004-06-16
Anticipated expiration: 2013-05-29

Abstract

The utility model is a thin and flat cassette based heat collecting plate of high effeciency with margins of volume gain. The present thin-flat cassette based heat collecting plate has a slow thermal circulation, which lowers the thermal efficiency. The structure of the product is that a thin and flat metal cassette is provided with a marginal part of volume gain, and the union joints of a pressure pipe and a drain pipe which are linked with a cavum of the flat cassette are arranged at the margins of volume gain. The thermal efficiency of the heat collecting plate is maximal when a distance between an upper shoe and a lower shoe in the thin and flat cassette is 2 to 10 millimeters. Due to that the thin and flat metal cassette having the marginal part of volume gain and the union joints of the pressure pipe and the drain pipe which are linked with the cavum of the flat cassette are positioned at the margins of volume gain, the distance between the upper shoe and the lower shoe in the flat cassette can be reduced and the water capacity in the cavum can be at the best range. The heat collecting plate has the advantages of fast thermal circulation and remarkable increase of the thermal efficiency. Besides, the heat collecting plate has strong frost resistant capacity, simple structure and low production cost with a good expansion character.

Description

The slim flat box type efficient heat-collecting plate on band increase-volume limit

Affiliated technical field

The utility model relates to the solar water heater technology, is specially a kind of slim flat box type efficient heat-collecting plate with the increase-volume limit.

Background technology

The widely used tube wing type thermal-arrest of solar water heater plate, its complex structure, heat conduction link are many, and efficient is low, and anti-freezing property is poor.Application number is that 97246308.9 Chinese patent file has been announced a kind of " flat box type thermal-arrest plate ", and its structure is the flat box of a simple shape, has the water inlet pipe and water outlet pipe joint on the box body.Because the water inlet pipe and water outlet pipe joint directly is located on the flat box box body, therefore flat box must be thicker, causes water capacity excessive, and thermal cycle is slow, has reduced the thermal efficiency.

The utility model content

The purpose of this utility model is to overcome the shortcoming of prior art, and a kind of slim flat box type efficient heat-collecting plate with the increase-volume limit is provided, and it is not only simple in structure, good frost resistance, and can further improve the thermal efficiency.

Structure of the present utility model is: the slim flat tape of a metal has the marginal portion that increases volume, is located at the edge that increases volume with the water inlet and the titting water outlet of flat box cavity UNICOM.Slim flat box can be multiple shapes such as square (comprising rectangle or square), parallel four limit types, hexagon, circle, ellipse, but is preferably square.Square slim flat box is better than its two opposite side most and has the edge that increases volume, Yi Bian wherein establish admitting pipe joint, its opposite side sets out water pipe head.Experimental study is the result show, the thermal efficiency of thermal-arrest plate is the highest when the distance between the inner upper and lower bottom plate of slim flat box is 2～10 millimeters.

In order to strengthen the rigidity of slim flat box, can be in slim flat box inside with the fastening connection in upper and lower bottom plate compartment of terrain.Securing members such as both available rivet, bolt are realized fastening connection, also can to stamp out a plurality of one sides be point-like or the strip convex-concave thing recessed, that another side is projection making on the plate face of slim flat box first compartment of terrain, the part of projection is connected by electric resistance welding is fastening with another plate face of flat box.Like this, the space that existing Rong Shui and water flow in the slim flat box, add hydraulic pressure after the slim flat box of metal not yielding again.

The beneficial effects of the utility model: because flat box type thermal-arrest strip has the marginal portion that increases volume and is located at the edge that increases volume with the water inlet and the titting water outlet of flat box cavity UNICOM, distance between the inner upper and lower bottom plate of therefore flat box can diminish, water capacity can be in optimum range, effect is that thermal cycle is fast, and the thermal efficiency significantly improves.Thermal-arrest plate expansion character is good in addition, thereby freezing tolerance is strong, and structure is still simple, and production cost is low.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of embodiment 1.

Fig. 2 is the perspective view of embodiment 2.

The specific embodiment

Embodiment 1: see Fig. 1.The both sides of upper plate 1 and lower shoe 2 are bent into arcuation limit 3 and 4 respectively, and arcuation limit 3 is connected airtight with 4 usefulness seamings 5, make to have the flat box of rectangle that increases volume opposite side 6 and 7.Water inlet and titting water outlet are located at opposite side 6 and 7 places that increase volume respectively.Distance between inner upper plate 1 of flat box and the lower shoe 2 is 4 millimeters.The material of upper plate 1 and lower shoe 2 is a galvanized sheet metal.The compartment of terrain stamps out some spot-like projections 8 on lower shoe 2, and the usefulness electric resistance welding is fastening connects for spot-like projections 8 and upper plate 1.Be coated with the black heat-absorbing paint at whole outside of deivce face.

Embodiment 2: see Fig. 2.Two opposite side of the thin flat box 9 of rectangular metal are fastening with two strip metal water pipes 10 and 11 welding respectively, and the inner chamber of flat box 9 communicates with the inner chamber of water pipe 10 and 11.Water pipe 10 and 11 just becomes two increase-volume limits of thermal-arrest plate.Water pipe 10 and an end of 11 seal with plug, and the other end taps into water and outlet pipe respectively.The outer surface of whole device is coated with the black heat-absorbing paint equally.

Above embodiment is only for the utility model is described in further detail, and scope of the present utility model is not subjected to the limitation of illustrated embodiment.

Claims

1, a kind of slim flat box type efficient heat-collecting plate with the increase-volume limit is characterized in that the slim flat tape of a metal has the marginal portion that increases volume, is located at the edge that increases volume with the water inlet and the titting water outlet of flat box cavity UNICOM.

As the said thermal-arrest plate of claim 1, it is characterized in that 2, have the edge that increases volume in its two opposite side, Yi Bian wherein establish admitting pipe joint, its opposite side sets out water pipe head for square.

3,, it is characterized in that the distance between the inner upper and lower bottom plate of slim flat box is 2～10 millimeters as the said thermal-arrest plate of claim 1.

4,, it is characterized in that in slim flat box inside the fastening connection in upper and lower bottom plate compartment of terrain as the said thermal-arrest plate of claim 1.