CN2888275Y

CN2888275Y - Vacuum phase change boiler

Info

Publication number: CN2888275Y
Application number: CN 200620117344
Authority: CN
Inventors: 王永波; 张世仓
Original assignee: Qingdao Qingyi Energy Source Equipment Group Co Ltd
Current assignee: Qingdao Qingyi Energy Source Equipment Group Co Ltd
Priority date: 2005-11-24
Filing date: 2006-05-19
Publication date: 2007-04-11
Anticipated expiration: 2016-05-19

Abstract

A vacuum phase transitional oven contains an oven house, a burner installed inside one end of the oven chamber, a flue communicated with the rear smoke tank, and a radiator on the top of the rear smoke tank. The burner passing through the front door cover and the front smoke tank is connected with the central return burning chamber, the rear end of which is sealed, the front smoke tank is communicated with the flue. The oven has the advantages of high heating efficiency, low smoke resistance, validly lowering the nitrogen oxide producing in the smoke, simple manufacturing process and saving the metal steel.

Description

A kind of phase change vacuum boiler

(1) technical field

The utility model relates to a kind of boiler, a kind of specifically phase change vacuum boiler.

(2) background technology

Phase change vacuum boiler is a kind of integral body is born negative pressure in running a boiler plant, is after combustion medium is fully burnt in burner, by radiation, heat convection, with the water in the heat transferred boiler.The water boiling of being heated produces steam, condensation after the exchanger tube wall heat exchange of steam and low temperature, and with working medium mobile in the heat transferred heat exchanger.Combustion medium of the prior art through the combustion chamber, directly enters smoke pipe by the back smoke box and discharges after the ejection of burner internal combustion.Because its stroke is short, therefore be easy to generate the insufficient and not high phenomenon of heat energy utilization rate of burning, reduced the thermal efficiency of complete machine.

(3) summary of the invention

The utility model is in order to overcome the shortcoming in the above-mentioned technology, proposes a kind of sufficient combustion, phase change vacuum boiler that thermal conversion efficiency is high.

The purpose of this utility model is realized by following technical scheme: a kind of phase change vacuum boiler, comprise shell 7, be installed in the burner 1 of burner hearth one end, the smoke pipe 6 that is communicated with back smoke box 9, and the heat exchanger 12 of top, it is characterized in that burner 1 pass before door closure 2 and front smoke box 3, the combustion chamber 5 of strile-bacing, connection center, the strile-back rear end of combustion chamber 5, center is sealed, and front smoke box 3 is communicated with smoke pipes 6.

Combustion chamber 5 and smoke pipe 6 strile-back at front smoke box 3 connection centers.

Front smoke box 3 is between front tube sheet 4 and preceding door closure 2, and the end of smoke pipe 6 is communicated with the back smoke box 9 between back tube sheet 8 and the back door closure 10.

Fuel oil that burner 1 is suitable with ratio or combustion gas and the center that enters after air mixes 5 inside, combustion chamber of strile-bacing, the combustion chamber of strile-bacing, outflow center of strile-bacing along the center around the combustion chamber oppositely, bottom back, combustion chamber of strile-bacing, arrival center, form the inner secondary back of burner hearth, smoke box 9 is discharged after front smoke box 3 enters smoke pipe 6 and enters, owing to increased the stroke of combustion gas in boiler, make the high-temperature flue gas of backflow play a heat effect to low temperature combustion gas and the Air mixing gas that is just sprayed by burner, it is more abundant to burn; Reduced the content of the carbon dioxide of flue gas and oxynitrides and to the pollution of atmosphere.

The utility model has the advantages that: thermal efficiency height, the boiler smoke resistance is little, can effectively reduce the generation of nitrogen oxide in the flue gas; Manufacturing process is simple, saves steel.

(4) description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the side view of Fig. 1;

(5) specific embodiment

Fuel oil that burner 1 is suitable with ratio or combustion gas and air mixed combustion after the front smoke box 3 between front tube sheet 4 and the preceding door closure 2 enter in the combustion chamber 5 of strile-bacing, the rear end of combustion chamber 5 is sealed owing to strile-back, the burning gases combustion chamber of strile-bacing, outflow center of being forced to strile-back along the center around the combustion chamber oppositely enters smoke pipe 6 through front smoke box 3.Prolonged the stroke of high-temperature fuel gas in boiler, form the inner secondary back of burner hearth, high-temperature fuel gas is in the process that refluxes, self has carried out second-time burning, simultaneously low temperature combustion gas and the Air mixing gas that is just sprayed by burner has been played heat effect, make burning more abundant, when having increased burner hearth thermal capacity, heat radiation, heat convection amount have also been increased, strengthened the heat that passes to water in the boiler, reduced the content of the carbon dioxide of flue gas and oxynitrides simultaneously and the pollution of atmosphere.High-temperature fuel gas enters smoke pipe 6 through front smoke box 3 to be continued the water in the heat transferred boiler.Water is heated to seethe with excitement and produces steam, condensation after the exchanger tube wall heat exchange of steam and low temperature, and with the working medium that flow in the heat transferred heat exchanger 12.The condensed water of steam is continued heating vaporization heat exchange.Useless flue gas through back smoke box 9 from chimney 11 discharge boilers.So move in circles, realize the operation of boiler continous-stable.

Claims

1, a kind of phase change vacuum boiler, comprise shell (7), be installed in the burner (1) of burner hearth one end, the smoke pipe (6) that is communicated with back smoke box (9), and the heat exchanger of top (12), it is characterized in that burner (1) passes preceding door closure (2) and front smoke box (3), the combustion chamber (5) of strile-bacing, connection center, the strile-back rear end of combustion chamber (5), center is sealed, and front smoke box (3) is communicated with smoke pipe (6).

2, a kind of phase change vacuum boiler according to claim 1 is characterized in that front smoke box (3) connection center strile-back combustion chamber (5) and smoke pipe (6).

3, a kind of phase change vacuum boiler according to claim 1 and 2 is characterized in that front smoke box (3) is positioned between front tube sheet (4) and the preceding door closure (2), and the end of smoke pipe (6) is communicated with the back smoke box (9) between back tube sheet (8) and the back door closure (10).