CN2465056Y

CN2465056Y - Coal boiler grate protection and waste heat recovery device

Info

Publication number: CN2465056Y
Application number: CN 01204919
Authority: CN
Inventors: 尹延年
Original assignee: DUNHUA QUANXIN BOILER Manufacturing Co Ltd
Current assignee: DUNHUA QUANXIN BOILER Manufacturing Co Ltd
Priority date: 2001-02-04
Filing date: 2001-02-04
Publication date: 2001-12-12
Anticipated expiration: 2011-02-04

Abstract

The utility model relates to a coal-fired boiler grate protection and waste heat recovery device composed of a water inlet, a ventilating and ash cleaning opening, an upper blocking plate, a lower blocking plate, a connecting pipe, a water outlet, a cambered wind chamber plate, a left inner side plate, a right inner side plate and a steam discharging pipe, which are arranged below a boiler grate in a base of a boiler. Multiple heating surfaces which are connected in series into a return circuit by the connecting pipe and are composed of the left inner side plate, the right inner side plate, the upper blocking plate, the lower blocking plate and the cambered wind chamber plate are arranged at the lower part of the boiler grate. Cooling water enters the heating surfaces from the water inlet, absorbs the irradiating heat of the boiler grate and flows into a water tank through the water outlet. The whole cooling system needs one circulation water pump to realize the forcing flow of the water.

Description

A kind of coal-burning boiler fire grate protection and waste-heat recovery device

The utility model relates to a kind of Cooling protector of coal-burning boiler fire grate, particularly relates to a kind of fire grate cooling device that has arc air compartment plate.

The fire grate of coal-burning boiler all is fire grate is cooled off to wind when leaning on boiler operatiopn at present, but when the temporary transient blowing out of boiler, because of stopping to can not get cooling to wind furnace row, the temperature of fire grate is sharply raise, and to making the grate overheating distortion, serious can not using needs replacing.

Task of the present utility model is to propose a kind of boiler that can make when operation and temporary transient blowing out, the device and the manufacture method thereof that can both make fire grate obtain cooling off.

The method that solves the utility model task is: be used for boiler grate protection and waste-heat recovery device and comprise water inlet, upper plugging plate, lower plugging plate, arc air compartment plate, connecting tube, left interior plate, Right Inboard plate, delivery port, gland steam exhauster composition.Enter the cooling water that cools off heating surface by water inlet, in the cooling heating surface, absorb the radiant heat of fire grate, at last from delivery port row mouth.Because the cooling water that flows constantly absorbs the fire grate radiant heat, make fire grate obtain cooling, thereby prolonged the service life of fire grate, press the utility model, also should comprise a water circulating pump and an opening water tank, could guarantee the reliable mobile of cooling water like this.

The utility model is compared with other fire grate type of cooling, it not only has the boiler grate of guaranteeing under any circumstance can both well be cooled off, prolong the service life of fire grate, main is that heated cooling water also can be as the make-up water of boiler, the operating thermal efficiency of boiler is improved, has reduced the energy consumption of boiler.

The utility model will be illustrated in conjunction with the accompanying drawings by embodiment, wherein:

Fig. 1 is the main cutaway view of boiler grate protection and waste-heat recovery device;

Fig. 2 is A-A cutaway view of Fig. 1;

With reference to accompanying drawing, will be described in detail specific embodiments of the present utility model.

In Fig. 1, the bottom of this device fire grate 9 in boiler foundation 1, cooling water enters in the heating surface of being made up of upper plugging plate 4, lower plugging plate 5 and arc air compartment plate 8 by water inlet 2, enter next heating surface until delivery port 7 through connecting tube 6 again, hot water is admitted in the water tank, and this device is formed by steel plate and steel pipe weldering system.

In Fig. 2, the both sides of this device are left interior plate 10 and Right Inboard plate 11, have to ventilate and cleaning door 3 on the interior plate of the left and right sides, and each heating surface peak place of left and right sides is provided with gland steam exhauster 12, are used to get rid of the gas in the circulatory system.

Claims

1, a kind of in boiler foundation (1) fire grate 9 times and the coal-burning boiler fire grate protection and the waste-heat recovery device of water inlet (2), ventilation and cleaning door (3), upper plugging plate (4), lower plugging plate (5), connecting tube (6), delivery port (7), arc air compartment plate (8), left interior plate (10), Right Inboard plate (11), gland steam exhauster (12) are arranged; its feature is fire grate (9) bottom in boiler foundation (1), is furnished with the heating surface that arc air compartment plate (8) and upper plugging plate (4) and lower plugging plate (5) are formed between left interior plate (10) and Right Inboard plate (11).

2, protect and waste-heat recovery device according to the coal-burning boiler fire grate of claim 1; it is characterized in that to be connected into a loop by the heating surface that left interior plate (10), Right Inboard plate (11) and arc air compartment plate (5), upper plugging plate (4) and lower plugging plate (5) are formed by connecting tube (6); cooling water enters heating surface from water inlet (2) and enters water tank from delivery port (7), and whole system is made by steel plate and steel pipe.

3, according to the protection of coal-burning boiler fire grate and the waste-heat recovery device of claim 1, it is characterized in that the air compartment baffle under the fire grate is an arc air compartment plate (8).