CN2140019Y - Cylinder stairs type combined boiler for oil waste gas - Google Patents

Abstract

The utility model relates to a cylinder stairs type combined boiler for oil waste gas, and is a marine boiler. As is shown in the attached figure, the gas part and the waste gas part are combined in the same cylinder shape boiler shell. The upper tube plates of the two parts are designed into the cylinder stairs type. The tube plate of a smoke tube is decreased below the water level of the boiler, the smoke tube is entirely merged in the water of the boiler, and the corrosion of the smoke tube on the gas and water dividing part is avoided. Not only the boiler is conveniently used and repaired, but also the repairing cost of the boiler is saved. Simultaneously, the cylinder strength calculation and the technical standard designed by the boiler conform to the design specification of current boiler of China, and the design and the processing manufacture are convenient. The utility model is a novel marine boiler with good effectiveness.

Description

Cylinder stairs type combined boiler for oil waste gas

Cylinder staged fuel oil waste gas composite boiler of the present utility model is a kind of marine boiler.

Marine Fuel Boiler is the visual plant in the Ship Power Equipment.How to improve the thermal efficiency of oil burning boiler, reclaim heat energy most effectively from waste gas, further reach purpose of energy saving, this is the problem that countries in the world marine boiler manufacturing is studying intensively.Qingdao Marine Boiler Factory is according to the existing defective of the present vertical fuel oil waste gas of employed three classes composite boiler (Gadelius of the AalborgAQ-5 type of Denmark, Japan and the Spanner of Britain), improved, having designed a kind of fuel oil semiconvection heating surface is that aciculiform pipe, waste gas part heating surface are the aciculiform pipe smoke pipe fuel oil waste gas composite boiler (number of patent application is 91226144.7) of smoke pipe.That this boiler has is rational in infrastructure, the thermal efficiency is high, volume is little, in light weight, good manufacturability, characteristics such as easy for installation.But the smoke pipe hypomere major part of the waste gas part of this boiler is immersed in the stove water, and the epimere sub-fraction is exposed in the carbonated drink space of boiler.At the seriously corroded of the boundary section smoke pipe of carbonated drink, the serious smoke pipe corrosion that only was about in two, three years in general four, five years penetrates, and needs often to change smoke pipe, on the ship use and maintenance brings great inconvenience, also increased maintenance cost simultaneously.At this problem, the Aalborg AQ-16 type ship of Denmark had once taked upper perforated plate is divided into ladder two parts of the circle of contact with boiler, the part upper perforated plate that waste gas smoke pipe epimere partly connects is reduced to below the water level, make smoke pipe all be immersed in the stove water, can solve the etching problem of smoke pipe at carbonated drink boundary position.But the pattern of this circle of contact hierarchic structure does not meet the existing relevant specification of China, lacks intensity and calculates and design considerations, is difficult to design and produce in China.Therefore, people's an urgent demand is improved existing boiler shape, releases a kind of fuel oil waste gas composite boiler that is applicable to China's design specification, structural shape novelty.

The objective of the invention is to avoid the defective and the weak point that exist in the above-mentioned prior art, designing a kind of smoke pipe that makes all is immersed in the stove water, structural design meets the novel fuel waste gas composite boiler of China's design specification, to avoid the heavy corrosion of disengagement surface, satisfy the requirement that boiler uses and keeps in repair.

In order to achieve the above object, the present invention has adopted and a kind of fuel oil part and waste gas partly has been combined in cylinder staged fuel oil waste gas composite boiler in the same cylindrical shape shell.The fuel oil part of this boiler is made up of cylindrical shape burner hearth and aciculiform tubular construction, is assemblied in a side of boiler.Chamber design is helped the water-cooling structure pattern.Opposite side has assembled the waste gas part of being made up of some smoke pipes, and smoke pipe can be one start screw pipe or smooth seamless steel pipe.For the smoke pipe that makes the waste gas part all is immersed in the stove water, avoid the corrosion of smoke pipe, this boiler is designed to the cylinder staged with the upper perforated plate of fuel oil part and waste gas part.Promptly in the fuel oil part, contain the aciculiform tube portion and be designed to circular drum tube sheet, with the joining tube sheet of smoke pipe epimere of waste gas part in open a circular hole that contains the aciculiform tube portion, the smoke pipe tube sheet is reduced to below the boiler water level, smoke pipe all is immersed in the stove water.The smoke pipe tube sheet connects with a cylinder with the drum tube sheet, forms boiler carbonated drink space.Contain the fuel oil part with one between smoke pipe tube sheet and the lower perforated plate and waste gas cylindrical shape shell partly connects.All be connected on the lower perforated plate at the burner hearth bottom of fuel oil part hypomere, thereby form the boiler furnace of a sealing, promptly make cylinder staged fuel oil waste gas composite boiler with check rod and waste gas smoke pipe partly.The boiler design standard that the cylinder intensity calculating of this boiler and designing requirement meet China, it manufactures and designs and can carry out with reference to existing technical standard.

Cylinder staged fuel oil waste gas composite boiler of the present invention is compared with existing fuel oil waste gas composite boiler, has following advantage:

1, the designed cylinder intensity of this boiler is calculated and technical standard, meets the existing boiler design standard of China, is convenient to design and processing and fabricating.Whole furnace binding is reasonable simultaneously, and raw materials consumption is saved in weight saving, has good social benefit and economic benefit.

2, the furnace binding of this boiler has adopted upper perforated plate has been designed to staged, the smoke pipe tube sheet is reduced to below the boiler water level, smoke pipe all is immersed in the stove water, thereby the heavy corrosion problem of the carbonated drink boundary section smoke pipe when having avoided smoke pipe to be exposed to the carbonated drink space, not only make the easy to use and maintenance of boiler, and saved maintenance cost.

Below in conjunction with accompanying drawing embodiments of the invention are further described.

Fig. 1 is the orthogonal view of cylinder staged fuel oil waste gas composite boiler of the present invention.

Fig. 2 is the top view of cylinder staged fuel oil waste gas composite boiler of the present invention.

By Fig. 1 and Fig. 2 as can be known, the present invention has adopted and a kind of fuel oil part and waste gas partly has been combined in the interior cylinder staged fuel oil waste gas composite boiler of same cylindrical shape shell 1.The fuel oil part of this boiler is made up of cylindrical shape burner hearth 2 and aciculiform tubular construction 3, is assemblied in a side of boiler.Chamber design is helped the water-cooling structure pattern.Opposite side has assembled the waste gas part of being made up of some smoke pipes 4, and smoke pipe can be one start screw pipe or smooth seamless steel pipe.For the smoke pipe that makes the waste gas part all is immersed in the stove water,, the fuel oil part of boiler and the upper perforated plate of waste gas part are designed to the cylinder staged to avoid the corrosion of smoke pipe.At first in the fuel oil part, to contain the aciculiform tube portion and be designed to circular drum tube sheet 5, with the joining tube sheet 6 of smoke pipe 4 epimeres of waste gas part in open a circular hole that contains the aciculiform tube portion, smoke pipe tube sheet 6 is reduced to below the boiler water level, smoke pipe all is immersed in the stove water.Smoke pipe tube sheet 6 connects with drum tube sheet 5 usefulness one cylinder 7, forms boiler carbonated drink space.Contain the fuel oil part with one between smoke pipe tube sheet 6 and the lower perforated plate 8 and waste gas cylindrical shape shell 1 partly connects.Hypomere in fuel oil burner hearth 2 bottoms partly with check rod and smoke pipe 4 all is connected on the lower perforated plate 8, thereby forms the boiler furnace of a sealing, has made cylinder staged fuel oil waste gas composite boiler.The cylindrical structure intensity of this boiler is calculated and technical standard, all can carry out according to China existing boiler design standard and standard.The welding assembly technology of whole cooker furnace body and each several part requires identical with the technological requirement that has boiler now.

Claims (1)

1, an a kind of side in same shell is an aciculiform pipe oil burning boiler, and a side is for being the cylinder staged fuel oil waste gas composite boiler of diesel exhaust heating surface with the smoke pipe.It is characterized in that the upper perforated plate of fuel oil part and waste gas part is designed to the cylinder staged, the smoke pipe tube sheet is reduced to and is made smoke pipe all be immersed in the water below the water level, and the drum tube sheet and the smoke pipe tube sheet that contain the aciculiform tube portion connect with a cylinder, form boiler carbonated drink space.

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