CN2426079Y

CN2426079Y - Upper combustion type ordinary pressure hot water boiler using square briquet

Info

Publication number: CN2426079Y
Application number: CN 00211846
Authority: CN
Inventors: 时春和
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-16
Filing date: 2000-05-16
Publication date: 2001-04-04
Anticipated expiration: 2010-05-16

Abstract

The utility model relates to an upper combustion type ordinary-pressure hot water boiler using square briquet, which is suitable for water-fire pipe boilers, and the utility model comprises a boiler body, a boiler barrel, a convection heat-exchanging pipe, a combustion chamber, a header communicating pipe group and a water-cooling wall pipe. The outer part of the boiler body is provided with a fume outlet, a boiler door, an air distributing door, a water outlet valve, a drainage valve, etc. The utility model is characterized in that two orbits are symmetrically arranged on the header communicating pipe group in parallel along the boiler body, rolling push-feeding fire grate sheets are arranged on the orbits, an intermittent type mechanical push-feeding device corresponding to the fire grate sheets is arranged on the front end of the boiler body, and the front end of the combustion chamber is provided with an ascending pipe. The utility model has the advantages of reasonable structure, ordinary-pressure operation, continuous and constant-temperature heat supply, low integrated cost, etc.

Description

Square briquette upper-burning normal-pressure hot-water boiler

The utility model belongs to the civil boiler technical field, specifically a kind of upper-burning normal-pressure hot-water boiler that utilizes moulded coal to make fuel.

At present; the hot-water boiler that on China thermal source market, uses; mostly be back and forth, traveling-grate stoker hot-water boiler or a considerable amount of fixed grate normal-pressure hot-water boiler; this hot-water boiler uses diffusing coal, layer coal; severe contamination atmosphere and environment, the requirement of more and more incompatible country and even international environmental protection.In addition, also use a kind of honeycomb briquette boiler on the market, although this boiler relative remission the air environmental pollution problem, but because project organization is limit, the welding of angle type, parallel vertical pulling are not considered the thermal expansion INFLUENCE ON FATIGUE STRENGTH, thus the welding road often by drawing crack, leak, had a strong impact on user's use, and the time be everlasting unit interval internal cause burning not thoroughly and the heating load deficiency.

The purpose of this utility model provide a kind of rational in infrastructure, can the antifatigue drawing crack, adopt to roll and push away the square briquette upper-burning normal-pressure hot-water boiler of raising.

The purpose of this utility model is achieved in that it comprises body of heater, heat convection pipe in the drum of upper of furnace body and the drum, the body of heater bottom is provided with the combustion chamber, be provided with the water screen tube that collects on case connection nest of tubes and the sidewall of combustion chamber in the bottom, combustion chamber, outside at body of heater also is equipped with exhanst gas outlet, the ash door, fire door, the air distribution door, outlet valve, atmospheric valve, back-water valve (BWV), temperature is taken into account blowoff valve, it is characterized in that being communicated with the track that nest of tubes upper edge body of heater symmetrical parallel is provided with two interior water flowings at the collection case, being provided with in orbit rolls pushes away the grate sheet, also is provided with a discontinuous translation machinery and pushes away and raise device on the front end of body of heater and the corresponding position of fire grate segment; Be communicated with between nest of tubes and the drum at the collection case of chamber front end portion and be connected with 2-16 root tedge.Above-mentioned water flowing track is square water flowing track.

The utility model has been realized directed upper-burning burning owing to adopt square briquette discontinuous coal supply, thus after-flame when making fugitive constituent through last combustion layer, no black smoke, Yan Qiheidu ﹠amp; Lt; The Lin Geman one-level, and moulded coal has solid dirt, solid sulphur, nitrogen fixation, therefore do not establishing in addition under the situation of dust arrester, makes boiler dust-exhausting quantity, row's amount of sulfur dioxide reach the regulation in I district among the GB13271 " boiler pollutant atmospheric emission standard " too; Coal adaptability is strong in addition, the burning low-grade coal, and anthracite, II, III class coal combustion efficiency are better.This structure need not drum, air-introduced machine and cleaner, noiseless when therefore moving; Fuel cost reduces about 2/3rds than fuel oil, combustion liquefied gas furnace under same area of heat-supply service.But that the utility model also has is rational in infrastructure, the heat supply of normal pressure operation continuous constant temperature, safe and reliable, integrated cost is low, applied range advantages such as (heating, bathing, drinking water).

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is a sectional structure simplified schematic diagram of the present utility model

Fig. 2 is the side view of Fig. 1

Shown in Fig. 1-2,3 among the figure is body of heater, is the heat convection pipe 2 in drum 8 and the drum on the top of body of heater 3 that this heat convection pipe is the tilted convection heat exchanger tube that moves towards setting along flue gas.The body of heater bottom is provided with combustion chamber 9, be provided with the inflatable water screen tube 7 that collects on case connection nest of tubes 6 and the sidewall of combustion chamber in 9 bottoms, combustion chamber, the collection case is communicated with nest of tubes 6 and collects case, front and back header and square hollow water flowing track 15 about by the bottom, combustion chamber and form, this square track is the track along two interior water flowings of body of heater symmetrical parallel setting, square track 15 is provided with to roll and pushes away the grate sheet, and this rolling pushes away the grate sheet and is made of roller 16, wheel shaft 18 and fire grate segment 10.Also being provided with a discontinuous translation leading screw machinery on the front end of body of heater 3 and fire grate segment 10 corresponding positions pushes away to raise device 21 and push away and raises plate 20; Be communicated with between nest of tubes and the drum at the collection case of chamber front end portion and also be connected with 2 tedges 5 (quantity of tedge is decided according to the size of boiler), like this when boiler combustion, flame burns to the stokehold after by stove, high-temperature flue gas must be through the stokehold tedge, and enter drum in the unrestrained heat exchanger tube, risings so the water in the tedge is heated moved to the stokehold after making the interior water of square water flowing track by stove.In addition, exhanst gas outlet 4, ash door 1, fire door 12, air distribution door 19, outlet valve 14, atmospheric valve 11, back-water valve (BWV) 22, thermometer 13 and blowoff valve 17 also are installed in the outside of body of heater.This novel course of work is: earlier the square briquette of thick 100 millimeter is put on the fire grate segment 10 of stokehold end, 3-4 piece square briquette is placed in the reply hole on short transverse, place a square briquette for 10 millimeters at horizontal every interval, after laterally being covered with, push combustion chamber 9 through fire door 12, the roller 16 of fire grate segment bottom is placed on the square water flowing track 15, raise plate 20 and discontinuous translation leading screw machinery and push away and raise after device 21 pushes combustion chamber 9 through pushing away then, machinery is pushed away raise device 21 and push away and raise plate 20 and keep in the center, to treat next coal supply.Generally per hour left and right sides coal supply once, behind the each coal supply in combustion chamber, and outside the combustion chamber other end (rear portion) the slag of after-flame be pulled to the fire door place of combustion chamber, behind spray cooling, remove the gred.

Claims

1, a kind of square briquette upper-burning normal-pressure hot-water boiler that is applicable to single combustion chamber or double combustion chamber's fire tube boiler, it comprises body of heater, heat convection pipe in the drum of upper of furnace body and the drum, the body of heater bottom is provided with the combustion chamber, be provided with the water screen tube that collects on case connection nest of tubes and the sidewall of combustion chamber in the bottom, combustion chamber, outside at body of heater also is equipped with exhanst gas outlet, the ash door, fire door, the air distribution door, outlet valve, atmospheric valve, back-water valve (BWV), temperature is taken into account blowoff valve, it is characterized in that being communicated with the track that nest of tubes upper edge body of heater symmetrical parallel is provided with two interior water flowings at the collection case, being provided with in orbit rolls pushes away the grate sheet, also is provided with a discontinuous translation machinery and pushes away and raise device on the front end of body of heater and the corresponding position of fire grate segment; Be communicated with between nest of tubes and the drum at the collection case of chamber front end portion and be connected with 2-16 root tedge.

2,, it is characterized in that the water flowing track is square water flowing track according to the described square briquette upper-burning of claim 1 normal-pressure hot-water boiler.

3,, it is characterized in that water screen tube is the inflatable water screen tube according to the described square briquette upper-burning of claim 1 normal-pressure hot-water boiler.

4,, it is characterized in that rolling pushes away the grate sheet and is made of roller, wheel shaft and fire grate segment according to the described square briquette upper-burning of claim 1 normal-pressure hot-water boiler.

5,, it is characterized in that the tilted convection heat exchanger tube of heat convection pipe in the drum for moving towards along flue gas to be provided with according to the described square briquette upper-burning of claim 1 normal-pressure hot-water boiler.