CN208365508U

CN208365508U - condensing steam boiler

Info

Publication number: CN208365508U
Application number: CN201820820344.0U
Authority: CN
Inventors: 刘亚东; 刘芹; 刘文博; 王坤
Original assignee: Henan Heng De Boiler Co Ltd
Current assignee: Henan Heng De Boiler Co Ltd
Priority date: 2018-05-29
Filing date: 2018-05-29
Publication date: 2019-01-11
Anticipated expiration: 2028-05-29

Abstract

The utility model relates to a kind of condensing steam boilers.The condensing steam boiler of the utility model is when in use, hot gas in flue after return combustion chamber by entering in smoke pipe, hot-air enters in smoke pipeline after flowing out in smoke pipe, flue gas is flowed out from the outlet of flue, and during flow of flue gas, heat exchange occurs with the water in heat exchanging chamber, the water entered in cylinder lumen is preheated in advance, the heat waste in flue gas is avoided, makes heat exchange cavity configuration simple using double-layer sleeve structure, cost reduces.

Description

Condensing steam boiler

Technical field

The utility model relates to a kind of condensing steam boilers.

Background technique

Steam boiler, which is mainly used for heating in water, generates steam, existing mainly by vertical double return structures and three times horizontal Two kinds of journey structure.Existing boiler is most of all to use horizontal boiler, burner by during fuel to the water in boiler into Row heating, until boiling generates high-temperature steam.By to horizontal boiler in the prior art the study found that most boiler fire The flue gas of burning is directly discharged in atmosphere by pipeline, and these flue gases temperature all with higher causes heat Waste.There are also boilers to recycle the heat in flue gas in the prior art, but general structure is complicated, and cost is very It is high.

Utility model content

The utility model provides a kind of condensing steam boiler, when carrying out flue gas heat recycling to solve existing steam boiler The problem that structure is complicated, at high cost.

A kind of condensing steam boiler of the utility model adopts the following technical scheme that

Condensing steam boiler, including the cylinder and flue that extend along the longitudinal direction and smoke pipe, the cylinder is equipped with Steam tube socket, the condensing steam boiler further includes return combustion chamber, and the front end of the return combustion chamber is arranged in the flue and smoke pipe It above and with the return combustion chamber is connected to, is provided with outside the cylinder and extends smoke pipeline along the longitudinal direction, the pipe stage property The outlet for having the import for being connected to the smoke pipe and being communicated with the atmosphere, the smoke pipeline be double-layer sleeve structure, two The heat exchanging chamber extended along the longitudinal direction is formed between layer casing, the rear end of the heat exchanging chamber is equipped with water inlet line, front end is equipped with Waterpipe, lower position of the water outlet connection of the water inlet line in the heat exchanging chamber, the water inlet of the outlet conduit It is arranged at the upper position of the heat exchanging chamber, water outlet is connected to the inner cavity of the cylinder.

The smoke pipeline is cylinder-like structure.

The rear end of the return combustion chamber is connect by strut with the inner wall of the cylinder.

The flue is equipped with radiating segment wave-shaped.

The beneficial effects of the utility model are: the condensing steam boiler of the utility model is when in use, the heat in flue Gas enters in smoke pipe after passing through return combustion chamber, and hot-air enters in smoke pipeline after flowing out in smoke pipe, and flue gas is from flue Outlet outflow, during flow of flue gas, in heat exchanging chamber water occur heat exchange, to the water entered in cylinder lumen It preheats in advance, avoids the heat waste in flue gas, make heat exchange cavity configuration simple using double-layer sleeve structure, cost reduces.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the specific embodiment of the condensing steam boiler of the utility model；

In figure: 1, pedestal；2, cylinder；3, burner；4, flue；5, return combustion chamber；6, smoke pipe；7, outlet flue；8, pipe Road；21, steam tube socket；51, strut；81, outlet conduit；82, water inlet line；83, vertical pipeline.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The embodiment of the condensing steam boiler of the utility model, as shown in Figure 1, condensing steam boiler, including along preceding The cylinder 2 and flue 4 and smoke pipe 6 that rear direction extends, cylinder 2 are arranged on pedestal 1, and the cylinder is equipped with steam tube socket 21, the condensing steam boiler further includes return combustion chamber 5, the flue and smoke pipe be arranged on the front end of the return combustion chamber and with The return combustion chamber is connected to, and is provided with outside the cylinder and is extended smoke pipeline 8 along the longitudinal direction, and the smoke pipeline 8, which has, to be used In the import being connected to the smoke pipe and the outlet being communicated with the atmosphere, the smoke pipeline be double-layer sleeve structure, two layers set The heat exchanging chamber extended along the longitudinal direction is formed between pipe, the rear end of the heat exchanging chamber is equipped with water inlet line 82, front end is equipped with water outlet Pipeline 81, lower position of the water outlet connection of the water inlet line in the heat exchanging chamber, the water inlet of the outlet conduit It is arranged at the upper position of the heat exchanging chamber, water outlet is connected to the inner cavity of the cylinder.

In the present embodiment, the smoke pipeline is cylinder-like structure, easy to process.Certainly, in other embodiments, also It can be rhs-structure

In the present embodiment, the rear end of the return combustion chamber is connect by strut with the inner wall of the cylinder.

In the present embodiment, the flue is equipped with radiating segment wave-shaped, increasing heat radiation area.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims

1. condensing steam boiler, it is characterised in that: including the cylinder and flue that extend along the longitudinal direction and smoke pipe, the cylinder Body is equipped with steam tube socket, and the condensing steam boiler further includes return combustion chamber, and the flue and smoke pipe setting are strile-backd described Be connected on the front end of room and with the return combustion chamber, be provided with outside the cylinder and extend smoke pipeline along the longitudinal direction, it is described go out Smoke pipeline is bilayer sleeve with the import for being connected to the smoke pipe and the outlet being communicated with the atmosphere, the smoke pipeline Structure, forms the heat exchanging chamber extended along the longitudinal direction between two layers of casing, and the rear end of the heat exchanging chamber is equipped with water inlet line, front end Equipped with outlet conduit, the water outlet of the water inlet line is connected to the lower position in the heat exchanging chamber, the outlet conduit Water inlet is arranged at the upper position of the heat exchanging chamber, water outlet is connected to the inner cavity of the cylinder.

2. condensing steam boiler according to claim 1, it is characterised in that: the smoke pipeline is cylinder-like structure.

3. condensing steam boiler according to claim 1, it is characterised in that: the rear end of the return combustion chamber by strut with The inner wall of the cylinder connects.

4. condensing steam boiler described in any one of -3 according to claim 1, it is characterised in that: the flue is equipped with Radiating segment wave-shaped.