Liquid heaters and vaporizers – Heat transmitter – Corrugated and finned heat transmitters
Patent
1997-08-11
1999-04-06
Walberg, Teresa
Liquid heaters and vaporizers
Heat transmitter
Corrugated and finned heat transmitters
165154, F22B 2306
Patent
active
058904581
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a water heater using light oil, heavy oil and liquid fuel like LNG and LPG as fuel, particularly a multistep water heater which has high combustion efficiency and improved space for fuel combustion and heat transfer surface in the water heater so that the harmful component in the exhaustion gas is reduced and the heat transfer efficiency is increased.
Generally, in most conventional water heaters such as a boiler it cannot be expected that the fuel be completely combusted. Since the conventional water heater has a small heat transfer surface, a small heat transfer region and a short heat transfer time, it also cannot be expected that the high temperature of the combustion gas from the water heater can be fully used. Therefore the high temperature of 200.degree. C.-350.degree. C. is directly exhausted to the atmosphere and the loss of the heat is high.
Furthermore, as the boiler using the lighter oil, heavy oil or gas as fuel is increased, the problems of environment sanitation caused by the harmful component contained in the exhaustion gas are increased.
SUMMARY OF THE INVENTION
The principle object of the invention is to provide a multistep water heater having a means for increasing the combustion efficiency of fuel, which is installed in a flue tube and leads to the complete combustion of the fuel.
It is the other object of the invention to provide a multistep water heater having a plurality of the heat transfer plates in which a water jacket is provided and water guide pins are vertically and alternatively fixed on the top end and the bottom end of the wall so that the total heat transfer surface is increased and the heater transfer efficiency becomes high.
To accomplish the above objects the present invention includes: a means for increasing the combustion efficiency of fuel which is composed of the steel plate having a number of holes pierced, the steel plate is curved in multistep and installed in a flue tube of the water heater; and a plurality of heat transfer panels composed of an inner wall, an outer wall and a water jacket between the inner wall and the outer.
A plurality of water guide pins are vertically installed in the water jacket of the heat transfer plate. The ends of the water guide pins are alternatively fixed to the top of the water jacket or the bottom of the water jacket. The other end of the water guide pins are alternatively opened between the top or the bottom of the water jacket so that the opening portion between the other end of the water guide pin and the top or the bottom of the water jacket become a passage way of water in the heat transfer panels.
A plurality of the heat transfer panels are arranged in the shell of the water heater in opposite directions about a central flue with a same space. The heat transfer panels are connected by a water pipe with each other so that the water in the panels can flow from one heat transfer panel to other heat panel continuously. Water to be heated is supplied to the heat transfer panels through a water supply pipe, and the heated water is exhausted through a water outlet pipe. The water supply pipe and the water outlet pipe are connected with the heat transfer panel which is positioned in the left and right outer heat transfer panels respectively.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the water heater according to the present invention, a part of which is broken away to show the inner construction of the water heater;
FIG. 2 is a section view along the line A--A in FIG. 1;
FIG. 3 is a section view along the line B--B in FIG. 1; and
FIG. 4 is a perspective view of a combustion increasing plate according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 schematically shows the inner construction of a water heater according to the present invention, the water heater comprises a body portion 10 including a water supply pipe 12, a water outlet pipe 14, a combustion gas outlet port 16, and a fuel combustion port 18 in it
REFERENCES:
patent: 4282833 (1981-08-01), Giesen
patent: 4285666 (1981-08-01), Burton et al.
patent: 4385501 (1983-05-01), Ziegler
Walberg Teresa
Wilson Gregory A.
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