CN2343538Y

CN2343538Y - Double fire grate back-fire horizontal boiler

Info

Publication number: CN2343538Y
Application number: CN 98244209
Authority: CN
Inventors: 李全发
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-17
Filing date: 1998-09-17
Publication date: 1999-10-13
Anticipated expiration: 2008-09-17

Abstract

The utility model relates to a back-fire horizontal boiler with double fire grate. The external form of the utility model is an oblong. The utility model is composed of an upper part and a lower part. The upper part is a preheating water tank. The front part of the lower part is a combustion chamber, and the back part of the lower part is a smoke box. The interior of the upper part and the lower part is provided with an upper boiler container and a lower boiler container. An upper water clamping layer and a lower water clamping layer are arranged between the outer wall of the boiler container and the inner wall of the boiler body. The utility model fully utilizes the residual heat, reduces the discharge quantity of the smoke dust, reduces the pollution on the air, and has the advantages of high heat efficiency, natural ventilation, no electricity use, low labor intensity, simple operation, little coal consumption, energy saving, and requirement of environmental protection conforming.

Description

The anti-horizontal boiler that burns of double grate

The utility model relates to the anti-horizontal boiler that burns of a kind of double grate.

Relevant existing boiler exists that heating surface area is little, volume big, complex structure, labour intensity are big, needs air inducing, gives wind devices, wastes energy, and outfit equipment is many, shortcomings such as operating difficulties.

The purpose of this utility model is for addressing the above problem, provide a kind of heating surface area higher 2.5 times than same specification vertical boiler, the thermal efficiency improves more than 78%, volume is little, floor space is little, and flame is long in the body of heater internal end of travel, and it is many to circle round, heat is fully utilized, again can smoke abatement and dust control, gravity-flow ventilation, not electricity consumption, noiselessness, the anti-horizontal boiler that burns of double grate simple to operate.

The purpose of this utility model is achieved in that its profile of the utility model is a rectangle, it is made of two parts up and down, top is the preheating water tank, the place ahead, bottom is the combustion chamber, its rear portion is a smoke box, be provided with up and down two-layer flue up and down in two parts, between furnace outer wall and the inboard wall of furnace body be about water trapping layer.

The utility model compared with prior art has the following advantages, and it is good to make full use of waste heat, quick heating, sufficient combustion, smoke medicining dust-removing effect, and smoke density is lower than 200 millimeters/mark rice ³The flue dust blackness is less than 1 grade, the thermal efficiency is more than 76%, compact conformation, gravity-flow ventilation, not electricity consumption, noiseless, safe and reliable, per tour only needs a fireman, labour intensity is low, simple to operate, be enterprises and institutions' heating such as army, petroleum base, office, school, restaurant, have a bath, the ideal product of drinking water.

Fig. 1 is a main TV structure schematic diagram of the present utility model;

Fig. 2 is the utility model A-A cutaway view;

Fig. 3 is the utility model B-B cutaway view;

Fig. 4 is the utility model backsight structural representation;

Fig. 5 is the utility model left side structural representation;

Fig. 6 is the movable water pipe furnace grate structural representation of the utility model.

Below in conjunction with accompanying drawing the utility model is further described: as shown in Figure 1, 2, 3, its profile of the utility model is a rectangle, it is made of two parts up and down, top is the preheating water tank, the place ahead, bottom is the combustion chamber, its rear portion is a smoke box 29, is provided with up and down two-layer flue 15,5 up and down in two parts, between flue 15,5 outer walls and body of heater 2 inwalls be about water trapping layer 6,13.Shown in Fig. 2,3, the preheating water tank is made up of economizer bank 8, last water trapping layer 13, flue 12, economizer bank 8 is a y-type structure, its front end is communicated with last water trapping layer 13 fronts, its other end is communicated with last water trapping layer 13 back, and flue 12 is communicated with the combustion chamber by lower furnace 5 center top flues 14, and flue 12 other ends are communicated with smoke box 29, the preheating water tank also is provided with inspection opening 27, is convenient to check, clean.The combustion chamber, it is by lower furnace 5, two-layer burner hearth 3ab up and down, each burner hearth is provided with a fire door 17,18, two-layer up and down fire grate 19,21, U type water jacket 4, ash storage chamber 25, ashpit 23 is formed, being provided with U type water jacket 4 above the two-layer up and down burner hearth 3ab, is flue between its outside and the lower furnace 5, and both sides are communicated with the water inlet pipe and water outlet pipe 26,35 of upper fire-grating 19 in its front end, two ends, U type water jacket 4 left and right sides are communicated with lower furnace 5 left and right sides inwalls, upper fire-grating 19 is movable water pipe furnace grate, and its two ends are communicated with water inlet pipe and water outlet pipe 26,35, can disassembled and assembled freely.Lower fire grating 21 is common fire grate, be placed on the grate support 22, be provided with ash storage chamber 25 below it, ash storage chamber 25 is the passage that is communicated with before and after the body of heater, mouth respectively is provided with an ash door 23,33 before and after it, and the right side, combustion chamber is provided with inspection opening 16, and the hot-water outlet pipe 20, blow-off pipe 24, its left side is provided with inspection opening 1, water level meter 34, inspection opening 37.As shown in Figure 2, be provided with laterally parallel uniform convection tube 31 in the smoke box 29, its two ends are communicated with following water trapping layer 6 left and right sides.Shown in Fig. 1,3,5, water trapping layer 15,5 is communicated with by the water inlet pipe and water outlet pipe 35,26 of body of heater 2 outer walls with communicating pipe 30, relief tube 28, upper fire-grating 19 up and down.Both sides, body of heater 2 top are provided with water inlet pipe 11, overflow pipe 10, return pipe 36, a pair of liquid level gauge 9,7, and they are communicated with last water trapping layer 15.

Cold water enters down water trapping layer 6 from water inlet pipe 11 by communicating pipe 30 during use, and the gas in the following water trapping layer 6 enters the preheating water tank by overflow pipe 28, and last all gas is discharged from overflow pipe 10.Water in the movable water pipe furnace grate 19 enters from water inlet pipe 35, enters down water trapping layer 6,13 from outlet pipe 26 again after the heating, and the hot water in the stove flows out from outlet pipe 20, and the sewage in the stove is discharged from blow-off pipe 24.With fuel after drying destructive distillation burning on the upper fire-grating 19, flame moves downwards, flame on the lower fire grating 21 is operation upwards, this just forms a high-temperature region in whole combustion chamber, flame is by entering the water the flue 12 heating preheating water tanks from U type water jacket both sides, then in the smoke box of operation heating downwards 29 to overflow pipe 31, discharge from smoke exhaust pipe 32 at last, because stroke is long in the fuel gas stove, it is many to circle round, sufficient combustion, temperature reduced when flame passed through overflow pipe 31, and flue dust reduces, and has so promptly reached the purpose that makes full use of waste heat, reduced smoke discharge amount again, reduced pollution, and the consumption coal is few, about 16 kilograms in ton boiling water consumption coal to atmosphere, save fuel, reached national requirements for environmental protection.

Claims

1. anti-horizontal boiler that burns of double grate, its profile is a rectangle, it is made of two parts up and down, it is characterized in that top is the preheating water tank, the place ahead, bottom is the combustion chamber, its rear portion is smoke box (29), is provided with up and down two-layer flue (15,5) up and down in two parts, between flue (15,5) outer wall and body of heater (2) inwall be about water trapping layer (6,13).

2. the anti-horizontal boiler that burns of double grate as claimed in claim 1, it is characterized in that the preheating water tank is made up of economizer bank (8), last water trapping layer (13), flue (12), economizer bank (8) is a y-type structure, its front end is communicated with last water trapping layer (13) front, its other end is communicated with the rear end of last water trapping layer (13), flue (12) is communicated with the combustion chamber by lower furnace (5) center top flue (14), and flue (12) other end is communicated with smoke box (29), and the preheating water tank is provided with inspection opening (27).

3. the anti-horizontal boiler that burns of double grate as claimed in claim 1, it is characterized in that the combustion chamber is by lower furnace (5), two-layer up and down burner hearth (3ab), each burner hearth is provided with a fire door (17,18), two-layer up and down fire grate (19,21), U type water jacket (4), ash storage chamber (25), ash door (23) is formed, be provided with U type water jacket (4) above the two-layer up and down burner hearth (3ab), between outer both sides of U type water jacket (4) and the lower furnace (5) is flue, the water inlet pipe and water outlet pipe (26 of both sides and upper fire-grating (19) in its front end, 35) be communicated with, U type water jacket (4) two ends, the left and right sides are connected with lower furnace (5) left and right sides inwall; Upper fire-grating (19) is movable water pipe furnace grate, its two ends are communicated with water inlet pipe and water outlet pipe (26,35), lower fire grating (21) is common fire grate, be placed on the grate support (22), be provided with ash storage chamber (25) below it, ash storage chamber (25) is the passage that is communicated with before and after the body of heater, mouth is respectively established an ash door (23,33) before and after it, the right side, combustion chamber is provided with inspection opening (16), hot-water outlet pipe (20), blow-off pipe (24), and its left side is provided with inspection opening (1), water level meter (34), inspection opening (37).

4. the anti-horizontal boiler that burns of double grate as claimed in claim 1 is characterized in that being provided with in the smoke box (29) laterally parallel uniform to overflow pipe (31), and its two ends are communicated with following water trapping layer (6) left and right sides, and smoke box (29) bottom is communicated with smoke exhaust pipe (32).

5. the anti-horizontal boiler that burns of double grate as claimed in claim 1 is characterized in that water trapping layer (15,5) is communicated with by the water inlet pipe and water outlet pipe (35,26) of body of heater (2) outer wall with communicating pipe (30), relief tube (28), upper fire-grating (19) up and down; Body of heater (2) both sides, top are provided with water inlet pipe (11), overflow pipe (10), return pipe (36), a pair of liquid level gauge (7,9), and they are communicated with last water trapping layer (13).