CN2357253Y

CN2357253Y - Vertical atmospheric boiler

Info

Publication number: CN2357253Y
Application number: CN 98239358
Authority: CN
Inventors: 钟家生
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-13
Filing date: 1998-11-13
Publication date: 2000-01-05
Anticipated expiration: 2008-11-13

Abstract

The utility model relates to a vertical atmospheric boiler which is mainly characterized in that the upper part of a grate is provided with an arch ring sleeve-shaped hot fire gathering flue device 4 made of firebricks or fireproof concrete, black smoke generated by the combustion of the grate is heated and carried out with combustion again in the annular flue device, and therefore, the utility model can eliminate the black smoke generated by the combustion of the grate. The utility model has convenient use and is suitable for combusting different coal.

Description

Vertical normal-pressure boiler

The utility model relates to vertical normal-pressure hot-water boiler.

Vertical normal-pressure hot-water boiler has much in prior art, include body of heater, fire grate, combustion chamber, flue, heat exchanger tube formation, the difference of various vertical boilers, mainly show combustion chamber, the constructional difference of heat exchanger tube flue, to improve the thermal efficiency is main purpose, its structure constitutes varied, each has its oneself characteristics, and its oneself shortcoming deficiency is also arranged.The vertical positive burning water-heating boiler that adopts double-layer grate is also arranged in prior art, as the vertical pressure-less boiler that just burning of a kind of double-layer grate of CN94228568 patent disclosure, its top at the casting furnace grate of combustion chamber is provided with one deck water pipe furnace grate and secondary air duct, form two combustion fronts, the sleeved flue heat-exchanger rig of multilayer is set in stove, though this boiler has its characteristics, the promptly double-deck upper strata combustion front that burns can advance burning once more to the black smoke that lower floor's burning produces and eliminate black smoke, but its upper grate combustion front must use anchracite ball just can reach the effect of eliminating black smoke, it uses two kinds of coal combustions to cause a lot of inconvenience to the user, the user often puts into big bituminous coal with levels and burns, and lose the black smoke effect of eliminating, this ring shell type flue heat exchange structure complexity in addition, the easily long-pending cigarette ash of hanging of flue heat-transfer surface, and can not remove, have a strong impact on heat exchange efficiency after collecting ash for a long time.

The purpose of this utility model provides a kind of easy to use, can eliminate black smoke effectively, the vertical normal-pressure hot-water boiler that the thermal efficiency is high.

The real novel technical scheme of this practicality is to include body of heater, fire grate, combustion chamber, upper of furnace body water tank, heat exchanger tube flue formation, its major technique is characterised in that, is provided with the heat build-up fire arch ring cover shape flue device of being made by refractory brick or refractory concrete in combustion chamber, fire grate top.

The flue gas of the utility model fire grate burning is offered on the ring wall face of heat build-up fire arch ring shape flue advances mouth, enter ring set flue inner chamber one side, after the circulation of ring set flue inner chamber flue, discharge from the gas outlet that the opposite side upper end is offered, enter the hot smoke-box of upper furnace----that is separated by heat build-up fire arch ring shell type flue device, discharge outside the body of heater via the heat exchanger tube smoke pipe in the body of heater water tank again.Owing in boiler furnace, be provided with heat build-up fire arch ring shell type flue device, the burned indoor flame high temperature heating of annular walling of flue, walling of flue becomes the red heat state, the black smoke that the fire grate burning produces is heated in ring shadow flue device once more to burn, thereby can eliminate the black smoke that the fire grate burning produces, therefore, no matter body of heater is to adopt individual layer fire grate or double-layer grate, all can eliminate the black smoke that the fire grate burning produces effectively, and when adopting double-layer grate, upper grate needn't use the anchracite ball burning, and is easy to use.

Fig. 1 is the utility model example structure schematic diagram.

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

Fig. 3 is the B-B cutaway view of Fig. 1.

Fig. 4 is that Fig. 1 is the C-C cutaway view.

Further describe the utility model below in conjunction with accompanying drawing.

Shown in accompanying drawing 1, the utility model includes vertical water-jacket typ body of heater 1, be provided with water tank 11 on body of heater 1 top, heat exchange flue device in water tank 11 bodies, be provided with combustion chamber 2 in body of heater 1 bottom, fire grate 3, and be opened in exhaust opening on the body of heater, water inlet, delivery port, ash discharging hole, formations such as fire door, it is characterized in that in combustion chamber, fire grate 3 top 2, being provided with the heat build-up fire arch ring shell type flue device of making by refractory brick or refractory concrete 4, it comprises by last crown face 46, constitute with the annular flue 42 that constitutes by inner ring sleeve 47 and outer ring set 48, in annular flue 42, be provided with perpendicular wall 45, it cuts off annular flue 42, side at annular flue 42 offers into mouth 41,41 ', on the upper surface of the opposite side of annular flue 42, be communicated with and offer outlet flue 43 with last crown face 46.The advance mouth 41 of the flue gas of fire grate 3 burning on (inner ring sleeve 49 tops advance mouth 41 ' and) annular flue 42 enters after circulation being heated the elimination black smoke that burns annular flue 42 in, discharge by outlet flue 43, enter into the hot smoke-box 2 ' of upper furnace----that is separated by the last crown face 46 of heat build-up fire arch ring shell type flue device 4, discharge via the smoke evacuation heat exchanger tube smoke pipe in the body of heater water tank 11 again.

The utility model is provided with two-layer fire grate in burner hearth, promptly be provided with lower floor's casting furnace grate 3 and upper strata water pipe furnace grate 3 ', and on the furnace body wall of the top of upper strata water pipe furnace grate 3 ', offer secondary air mouth 30, with further raising fire box temperature and combustion efficiency, and help to eliminate black smoke and adapt to various coals.

Shown in accompanying drawing 1 embodiment, the utility model is provided with smoke-box 5 in body of heater water tank 11, following smoke-box 6, smoke evacuation chamber 7, be provided with the heat exchange flue tube 25 that a plurality of vertical tubes are formed at hot smoke-box 2 ' of upper furnace and 5 of last smoke-boxes, hot smoke-box 2 ' is communicated with last smoke-box 5, be provided with the heat exchange flue tube 56 that a plurality of vertical tubes are formed at last smoke-box 5 and 6 of following smoke-boxes, smoke-box 5 is communicated with following smoke-box 6, be provided with the heat exchange flue tube 67 that a plurality of vertical tubes are formed at following smoke-box 6 and 7 of chambers of smoke evacuation, smoke-box 6 is communicated with smoke evacuation chamber 7, flue gas is through hot smoke-box 2 ', heat exchanger tube 25, last smoke-box 5, heat exchanger tube 56, following smoke-box 6, heat exchanger tube 67, smoke evacuation chamber 7, body of heater exhaust opening 8 discharges out of the furnace, and smoke-box 5 on correspondence on the body of heater 1, following smoke-box 6, smoke evacuation chamber 7 offers cleaning door 50 respectively, 60,70.This flue structure is simple, and is reasonable in design, and heat-transfer surface is big, and the heat exchange efficiency height can regularly in time be removed dust fouling in flue and each heat exchange smoke pipe by cleaning door, makes heat-transfer surface keep best heat exchange state.

Claims

1, a kind of vertical normal-pressure boiler, include vertical water-jacket typ body of heater (1), be provided with water tank (11) on body of heater (1) top, heat exchange flue device in water tank (11) body, be provided with combustion chamber (2) in body of heater (1) lower furnace, fire grate (3), and be opened in exhaust opening on the body of heater, water inlet, delivery port, ash discharging hole, fire door constitutes, it is characterized in that, in fire grate (3) combustion chamber, top (2), be provided with the heat build-up fire arch ring shell type flue device of making by refractory brick or refractory concrete (4), it is by last crown face (46), constitute with the annular flue (42) that constitutes by inner ring sleeve (47) and outer ring set (48), side at annular flue (42) offers into mouth (41,41 '), on the upper surface of the opposite side of annular flue (42), be communicated with and offer outlet flue (43) with last crown face (46).

2, vertical normal-pressure boiler according to claim 1, it is characterized in that, in burner hearth, be provided with lower floor's casting furnace grate (3) and the two-layer fire grate of upper strata water pipe furnace grate (3 '), on the furnace body wall of the top of upper strata water pipe furnace grate (3 '), offer secondary air mouth (30).

3, vertical normal-pressure boiler according to claim 1 and 2, it is characterized in that, in body of heater water tank (11), be provided with smoke-box (5), following smoke-box (6), smoke evacuation chamber (7), between hot smoke-box of upper furnace (2 ') and last smoke-box (5), be provided with heat exchange flue tube (25), between last smoke-box (5) and following smoke-box (6), be provided with heat exchange flue tube (56), be provided with heat exchange flue tube (67) between smoke-box (6) and smoke evacuation chamber (7) down, flue gas is through hot smoke-box (2 '), heat exchanger tube (25), last smoke-box (5), heat exchanger tube (56), following smoke-box (6), heat exchanger tube (67), smoke evacuation chamber (7), body of heater exhaust opening (8) discharges out of the furnace, go up the corresponding smoke-box (5) of going up at body of heater (1), following smoke-box (6), smoke evacuation chamber (7) offers cleaning door (50 respectively, 60,70).