CN2322049Y

CN2322049Y - Double-grate coal-burning heat-pipe boiler

Info

Publication number: CN2322049Y
Application number: CN 98235316
Authority: CN
Inventors: 朱新厂; 朱中秋; 王磊
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-02-27
Filing date: 1998-02-27
Publication date: 1999-06-02
Anticipated expiration: 2008-02-27

Abstract

The utility model belongs to a coal burning boiler. The utility model mainly solves the defect that the existing coal burning boiler has high temperature of the exhaust smoke, large coal consumption and severe smoke dust pollution. The utility model is characterized in that a smoke gas heat exchanger and a boiler hearth are respectively provided with a plurality of heat pipes; one end of the heat pipe is positioned in a water tank; the both ends of a plurality of smoke pipes are respectively communicated with the lower parts of the edge walls of the smoke gas heat exchanger and the boiler hearth; the interior of the boiler hearth is also provided with a plurality of water pipes which have the function of boiler tooth; the both ends of the water pipe are respectively communicated with the water tank; the number of the fire door is two; the two fire doors are respectively positioned on the upper parts of the stove tooth and the water pipe.

Description

The coal-fired heat pipe boiler of double grate

The utility model belongs to coal-burning boiler.

Existing coal-burning boiler is lower to the recovery and the utilization rate of waste heat, has that exhaust gas temperature is higher, the heavy heavier shortcoming of smoke contamination that reaches more greatly of consumption coal.

The purpose of this utility model provides the coal-fired heat pipe boiler of the lighter double grate of a kind of heat utilization efficiency height, good energy-conserving effect, smoke contamination.

The utility model comprises smoke evacuation tube, the burner hearth that fire door and stove tooth are housed, cleanout door and the stove pin that the stove outer covering that safety valve, steam outlet pipe, water level meter, peep hole, scale cleaning hole, blow-off pipe, water inlet pipe and hot-water outlet pipe are housed, the flue gas heat exchange device that ashpit is housed, an end communicate with the flue gas heat exchange device.

The utility model is achieved in that flue gas heat exchange device and burner hearth all are equipped with several heat pipes, and an end of heat pipe is positioned at water tank, the two ends of several smoke pipes communicate with the Bian Bi bottom of flue gas heat exchange device and burner hearth respectively, several water pipes that play the effect of stove tooth also are housed in the burner hearth, and the two ends of water pipe all communicate with water tank, said fire door has two, and lays respectively at the top of stove tooth and water pipe.

The position that above-mentioned several smoke pipe communicates with burner hearth is the burner hearth limit wall between stove tooth and the water pipe, and several smoke pipe is arranged for the semicircle cast.

Efficient heat absorption and heat release function that the utility model utilizes heat pipe to have, with heat pipe as conducting-heat elements of the present utility model, the width of cloth that makes the utility model both have conventional boiler is penetrated heat transmission function, has the phase-change heat transfer function again, thereby fully absorb the waste heat of flue gas, accelerate heat transfer speed, improve the heat utilization efficiency of coal, reach and reduce exhaust gas temperature and purpose of energy saving, adopt the double grate structure simultaneously, make flue dust after upper furnace is returned the bottom, enter the flue gas heat exchange device, reduce smoke contamination and purpose of energy saving thereby reach by smoke pipe.

Accompanying drawing 1 is the utility model structural representation.

Fig. 2 is the A-A cutaway view.

Fig. 3 is a schematic top plan view.

Among the figure: 1-burner hearth limit wall, 2-safety valve, 3-steam outlet pipe, 4-water level meter, 5-peep hole, 6-scale cleaning hole, 7-blow-off pipe, 8-water inlet pipe, 9-hot-water outlet pipe, 10-stove outer covering, 11-ashpit, 12-flue gas heat exchange device, 13-smoke evacuation tube, 14-fire door, 15-stove tooth, 16-burner hearth, 17-cleanout door, 18-stove pin, 19-heat pipe, 20-water tank, 21-smoke pipe, 22-water pipe.

Further specify embodiment below in conjunction with accompanying drawing:

Stove outer covering 10 adopts the iron plate of thick 4mm to make, high 3000mm, diameter 1100mm, flue gas heat exchange device 12 and smoke evacuation tube 13 all adopt the iron plate of thick 6mm to make, the high 600mm of flue gas heat exchange device 12 wherein, diameter 800mm, the high 900mm of smoke evacuation tube 13, diameter 220mm, burner hearth 16 adopts the iron plate of thick 8mm to make, high 1300m, diameter 800mm, the length of heat pipe 19 is respectively 600mm and 1000mm, wherein 600mm long totally 60 be installed in the flue gas heat exchange device 12,1000mm long totally 90 be installed in the burner hearth 16, smoke pipe 21 and water pipe 22 all adopt thick 6mm, diameter is respectively the seamless steel pipe manufacturing of 90mm and 70mm, and assembling each parts by aforementioned manner promptly becomes the utility model.

Claims

1, the coal-fired heat pipe boiler of a kind of double grate, comprise and being equipped with, safety valve, steam outlet pipe, the water level meter, peep hole, scale cleaning hole, blow-off pipe, water inlet pipe and hot-water outlet pipe's stove outer covering, the flue gas heat exchange device of ashpit is housed, the smoke evacuation tube that one end communicates with the flue gas heat exchange device, the burner hearth of fire door and stove tooth is housed, cleanout door and stove pin, it is characterized in that flue gas heat exchange device and burner hearth all are equipped with several heat pipes, and an end of heat pipe is positioned at water tank, the two ends of several smoke pipes communicate with the Bian Bi bottom of flue gas heat exchange device and burner hearth respectively, several water pipes that play the effect of stove tooth also are housed in the burner hearth, and the two ends of water pipe all communicate with water tank, said fire door has two, and lays respectively at the top of stove tooth and water pipe.

2,, it is characterized in that position that said several smoke pipe communicates with burner hearth is the burner hearth limit wall between stove tooth and the water pipe, and several smoke pipe is arranged for the semicircle cast by the coal-fired heat pipe boiler of the described a kind of double grate of claim 1.