Heat converter of plate-type gas water heater
A technology for gas water heaters and heat exchangers, applied in heat exchange equipment, water heaters, fluid heaters, etc., can solve the problems of reduced corrosion resistance and oxidation resistance, affecting the service life of gas water heaters, and reducing heat exchange effects , to achieve the effects of reducing the extrusion process, increasing the effective heat transfer area, and intensifying fluid fluctuations
Inactive Publication Date: 2008-08-20
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
Sn-lead alloy has a low melting point, is easy to melt and evaporate, and has great pollution to the human body and the environment. Even in the atmosphere, it is easy to change color and affects the appearance quality. After a period of use, the heat exchange effect is reduced.
[0005] (3) The heat collector is made of red copper, which oxidizes very quickly under the action of high-temperature gas, and at the same time, the corrosion resistance and oxidation resistance of the thin shell are reduced at high temperature, so the service life of the gas water heater is affected
Method used
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[0018] The specific embodiments of the invention will be further described below in conjunction with the accompanying drawings, and the invention is not limited thereto.
[0019] Figure 1 is a schematic diagram of a single plate in the heat exchanger plate of a gas water heater. It can be seen from Figure 1 that several grooves 2 are evenly distributed on the wall surface of the plate, and the inclination between the bottom surface of each groove and the horizontal position is 30- 60°, the groove is formed by one stamping of the mold, and the depth of the groove depends on the specific production situation.
[0020] Fig. 2 is a schematic structural view of a single plate body of a heat exchanger of a gas water heater. It can be seen from Fig. 2 that a single plate body is composed of two plates, and a flow channel 3 is arranged between the two plates, and the cross-sectional shape of the flow channel 3 is It is circular, and the flow channel is formed on the surface of the pla...
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The invention discloses a heat exchanger of a plate-typed fuel gas heater, belonging to the heat exchanger technical field, comprising a plate body, a runner, a total water outlet, a total water inlet, a fixed bolt, a diversion conduit, a runner inlet, a runner outlet, etc. The heat exchanger of the plate-typed fuel gas heater is mainly characterized in that the heat exchanger consists of more than two plate bodies in parallel which are fixed by the fixed bolt; each plate body consists of two stainless steel plates; the stainless steel plate forms a plurality of concave troughs on the surface after one-step punching and forms the runner on the surface of the plate after secondary punching; two stainless steel plates where the runners are punched are matched with each other and are hermetically welded at the circumferences that are contacted with each other so as to form the plate body which is provided with one runner; the middle of every two plate bodies is provided with a burner. The heat exchanger of the plate-typed fuel gas heater has the advantages of good heat transmission effect, saving the fuel, long service life, flexible and changeable structure, simple manufacture, small volume and beautiful appearance.
Description
technical field [0001] The invention relates to the technical field of heat exchangers, more specifically, it relates to a heat exchanger of a gas water heater. Background technique [0002] At present, household gas water heaters are mainly composed of water pipes installed in the shell, large rows of burners, water tanks and heat exchangers. The main problems of the heat exchangers of this gas water heater are: [0003] (1) The heat exchanger is composed of heat exchange tubes and cooling fins, in which the cooling fins are extruded on the heat exchange tubes. During the use of the heat exchanger with this structure, due to thermal expansion and contraction, the heat exchanger inside The gap between the heat exchange tube and the heat sink will gradually increase due to the oxidation of the heat exchange tube and the heat sink, resulting in a gradual decrease in the heat exchange efficiency of the heat exchanger, so the heat energy utilization rate is low, the thermal effi...
Claims
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Login to View More IPC IPC(8): F24H1/12F28F3/12F28F9/24
Inventor 朱冬生李元希吴治将涂爱民
Owner SOUTH CHINA UNIV OF TECH