CN2713368Y

CN2713368Y - Heat-exchanger for gas-fired water heater

Info

Publication number: CN2713368Y
Application number: CN 200420086880
Authority: CN
Inventors: 覃记军
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-01
Filing date: 2004-08-01
Publication date: 2005-07-27
Anticipated expiration: 2014-08-01

Abstract

The utility model discloses a heat-exchanger for gas-fired water heater, comprising a knee, a covering and a heat absorption slice. The utility model is characterized in that a superheating tube and a heat-exchange tube at the periphery of a combustion chamber are flattened shape copper tubes; the middles of the tubes are filled with water and are heated; the inner cavity of a top-layer tube is provided with the heat absorption slice; the flattened shape tubes can be used to increase heating area and the purpose of raising heat efficiency is reached. The utility model has the advantages of simple structure, easy manufacture, easy installation, easy use and fast hot water heating speed. The heat efficiency is raised more than 30%. The utility model is an ideal heat-exchanger for gas-fired water heater.

Description

The gas heater heat exchanger

Technical field

The utility model relates to water heater, particularly a kind of gas heater heat exchanger.

Background technology

The superheater tube of existing gas heater is round, and its heat runs off easily like this, and the thermal efficiency is not high, and result of use is undesirable.

The purpose of this utility model is to provide a kind of and replaces existing round tube with the flat copper pipe, and is easy to manufacture, simple in structure, the gas heater heat exchanger that the thermal efficiency easy to install is high

Summary of the invention

Technical solution of the present utility model is such, comprise by water inlet elbow, tube connector, foreskin, outlet pipe, heating overheating layer, ground floor, the second layer, the 3rd layer, the 4th layer overheating layer are the flat pipes, the upper tube layer is equipped with heat absorbing sheet, each layer pipe polyphone is connected, and is pipe 12-pipe 13-pipe 14-pipe 15-pipe 8-pipe 7-pipe 16-pipe 10-pipe 11 in proper order by the Inlet and outlet water flow direction.Heat absorbing sheet in the middle of the 3rd layer, the 4th layer pipe crosses for the centre has superheater tube to arrange one by one, and the connection of the flat tube heat exchanger assembly of two ends and limit wall, the superheater tube assembly is logical in limit wall serial connection.First and second layer pipe middle cavity is the combustion chamber, inner chamber and heat absorbing sheet periphery also are the combustion chambers in the middle of third and fourth layer, top layer pipe is divided into the both sides assembly, 4 in parallel connections of pipe are an assembly on one side, the both sides component string is connected afterwards, and water inlet goes into to ground floor from managing 12 that------the 4th layer---the 3rd layer---goes out hot water to the second layer.Combustion gas is in heat exchanger inner chamber combustion chambers burn.

The utility model advantage is simple in structure, and is easy to manufacture, easy to install, and thermal efficiency height improves more than 30% than existing water heater, all can produce in existing water heater factory, and be a kind of desirable gas heater heat exchanger.

Description of drawings

It is such that structure of the present utility model constitutes:

Fig. 1 is an overall structure assembling front view of the present utility model.

Fig. 2 is an overall structure assembling left view of the present utility model.

Fig. 3 is that A-A cutaway view among Fig. 1 is pressed in overall structure assembling of the present utility model.

Fig. 4 is that B-B cutaway view among Fig. 1 is pressed in overall structure assembling of the present utility model.

Among Fig. 1-Fig. 4, flat pipe layer (1), flat pipe layer (2), heat exchange layers (3), heat exchange layers (4), heat absorbing sheet (5), foreskin (6), the 4th layer of water exit elbow (7,8), tube connector (9), water exit elbow (10,11), water inlet pipe (12), water inlet elbow (13), communicating pipe (14), second layer water exit elbow (15), the 3rd layer of entry elbow (16), heat exchanger assembly (17,18), overheated assembly (19,20), supporting shell (21), combustion chamber (22), water layer (23), superheater tube (24).

The specific embodiment

Most preferred embodiment of the present utility model is such, with reference to Fig. 1-Fig. 4, make with reference to existing water heater contour structures, but the tubular flat copper pipe that is transformed into of its heat exchange, heating part is crossed the water heating, to increase heating surface area, reaches and improves thermal efficiency effect.Be welded into box overheated water layer with copper sheet, each is integral separately, from level to level, can be square, circular, prismatic or other shape, afterwards each layer serial connection water flowing is installed, logical fuel gas buring gets final product.Flat pipe layer (1,2) holds fuel gas buring at first, second layer inner chamber cavity, flat pipe layer (1,2) ring wall is water layer (23), also can disposablely become with founding with the copper sheet splicing, and internal cavity dress current are logical, the first serial connection of first, second layer tail is communicated with, as the B-B cutaway view.Heat exchange layers (3,4) also be spliced into or cast copper is made with copper sheet, internal cavity dress heat absorbing sheet (5), as the A-A cutaway view, be that the branch two halves is box, there are 4 mistake heat-exchange tubes (24) to cross on one side, adorn heat absorbing sheet (5) between it, the 4th layer of heat exchange layers of top layer (4) dress heat absorbing sheet (5) is more intensive than the lower floor, the 3rd layer of heat exchange layers (3) dress heat absorbing sheet (5) is more sparse than the upper strata, the 3rd, the 4th layer of heat exchange layers (3,4) also be that box limit wall is the flat pipe, tube cavity is crossed the water heating, the 3rd, the 4th layer of heat exchange layers (3,4) also the first serial connection of tail is logical mutually, pipe (1 at the 1-4 layer, 2,3,4) serial connection is logical mutually, the pipe outside has foreskin (6) fixing, and foreskin is outward a housing.It is connected to series-mounting between the pipe of 1-4 layer be from pipe (12), and---------pipe (15)---is managed (8)---pipe (7)---pipe (16)---pipe (10)---pipe (11) to pipe (14) to pipe (13).Promptly from the pipe (12) water inlet through first, second, the 4th, the 3rd layer (1,2,4,3) afterwards from the pipe (11) go out hot water.

Claims

1, a kind of gas heater heat exchanger, comprise by water inlet elbow, tube connector, foreskin, outlet pipe, zone of heating, it is characterized in that ground floor, the second layer, the 3rd layer, the 4th layer (1,2,3,4) superheater tube are the flat pipes, the upper tube layer is equipped with heat absorbing sheet (5), it is logical that each pipe layer connects serial connection, and Inlet and outlet water flows to by pipe (12)----pipe (13)---pipe (14)---pipe (15)---pipe (8)---pipe (7)---pipe (16)---pipe (10)---pipe (11).

2, according to the described gas heater heat exchanger of claim 1, it is characterized in that the 3rd layer, the 4th layer (3,4) heat absorbing sheet (5) in the middle of crossing for the centre has superheater tube (24) to arrange one by one, and flat tube heat exchanger assembly (17, the 18) connection in parallel of two ends and limit wall, superheater tube assembly (19,20) is logical in limit wall serial connection, the middle cavity of pipe (1,2) is gas combustion chamber (22), and inner chamber and heat absorbing sheet (5) periphery also are gas combustion chamber (22) in the middle of the pipe (3,4).