CN1027555C - Horizontal, reverse, quick-heating, atmospheric boiler capable of removing smoke and dust - Google Patents

Abstract

The present invention relates to a horizontal, reverse, quick-heating and normal pressure boiler capable of removing smoke and dust, which comprises a boiler body, an arch water jacket, an elliptical water jacket, header convection pipe groups of both sides, a rear header convection pipe group and a boiler bottom seat, wherein the water jackets and the header convection pipe groups are communicated by communicating pipelines to form a two-pass return water path. The arch water jacket is provided with a smoke deflector to form a three-pass smoke path The boiler has the advantages of compact structure, small volume and high heat exchange effectiveness, the boiler chamber and a flue can be made of non-fireproofing material, the flow directions of the water in the water path and the smoke in the smoke path are mutually reverse, an additional blower and additional dedusting equipment are not used, the combustion can be carried out sufficiently, and the exhaust smoke can achieve the environmental protecting requirements.

Description

Horizontal, reverse, quick-heating, atmospheric boiler capable of removing smoke and dust

The present invention is a kind of boiler, refers more particularly to a kind of normal-pressure boiler of heating, having a bath of being used to.

Existing horizontal heating have a bath boiler, normally extreme misery pipe or water-tube boiler.The boiler of these types has many defectives and deficiency, and their burner hearth or flue are all or part of to be to be constructed by refractory material to form, and therefore in boiler transportation, installation or baker process furnace wall is burst apart, and directly influence is burnt combustion and maintenance cost is increased; Such in addition boiler must be furnished with additional Fan Equipment and cleaner in the course of the work, could guarantee the fuel normal combustion and make institute's discharged flue gas reach environmental protection standard.Therefore above-mentioned existing boiler volume is bigger, and the thermal efficiency is low, complex process, manufacturing, operation and maintenance cost are higher.

The object of the present invention is to provide a kind of burner hearth and flue not to adopt refractory material, do not adopt additional Fan Equipment and cleaner and can carry out good combustion and can make smoke evacuation reach the heating of environmental protection standard, the normal-pressure boiler of having a bath.This kind boiler volume is little, the thermal efficiency is high, technology is simple, manufacturing, operation and maintenance cost are lower.

Boiler major technique feature of the present invention is, this boiler includes body of heater, arch water jacket, oval water jacket, two side collection case convection tube groups, rear set box convection tube group, furnace base.The arch water jacket is positioned at the middle part of body of heater, the space that the arch water jacket is surrounded constitutes burner hearth, oval water jacket is positioned at the top of body of heater, both sides collection case convection tube group is positioned at the inboard of body of heater two side respectively, installed inside at the body of heater aft bulkhead has rear set box convection tube group, keep at a certain distance away between this Guan Zuyu arch water jacket aft bulkhead, constitute a local expansion space, be separately installed with smoke barrier on the outer surface of arch water jacket two side and on the outer surface of aft bulkhead, smoke barrier extends upwardly to the body of heater top and is tightly connected with it, the two side ends of arch water jacket rear end wall smoke barrier is tightly connected mutually with the rear end of arch water jacket two side smoke barrier respectively, the front end and the body of heater front end wall of arch water jacket two side smoke barrier are spaced a distance, both sides collection case convection tube group is being equipped with water inlet pipe near its front end position, at oval water jacket front end face outlet pipe is installed, both sides collection case convection tube group respectively with rear set box convection tube group, the arch water jacket, oval water jacket is connected by pipeline successively, has smokestack on the arch water jacket aft bulkhead, have fire door on this water jacket front bulkhead, on the position of close its rear end of oval water jacket, smoke exhaust pipe is installed.

The major advantage of boiler of the present invention is, volume is little, the thermal efficiency is high, technology is simple, and manufacturing, operation and maintenance cost are lower, do not adopt additional Fan Equipment and cleaner just can make fuel combustion good, and makes smoke evacuation reach standard-required.

Fig. 1 is the end face half sectional view of boiler of the present invention;

Fig. 2 is an A-A cross section view shown in Figure 1;

Fig. 3 is a partial enlarged drawing shown in Figure 2.

Now in conjunction with the accompanying drawings, and by embodiment boiler of the present invention is described in detail.

Fig. 1 is the end face half sectional view of boiler of the present invention, and Fig. 2 is an A-A cross section view shown in Figure 1.This boiler mainly includes body of heater (27), arch water jacket (B1), oval water jacket (B2), both sides collection case convection tube groups (B3), rear set box convection tube group (B4), furnace base (B5).Arch water jacket (B1) is positioned at the middle part of body of heater (27), it is made up of inside and outside wall, the space that this water jacket (B1) is surrounded constitutes burner hearth (4), on the front end wall of body of heater (27) and water jacket (B1), fire door (2) is installed, smokestack (17) and following smokestack (19) are installed on the rear end wall of water jacket (B1); Oval water jacket (B2) is positioned at the top of body of heater (27), and be spaced a distance with arch water jacket (B1), the space that its distance is constituted is three backhaul flues (10), the position has the communicating pipe (8) that is connected with arch water jacket (B1) below close its front end of oval water jacket (B2), the front end face of oval water jacket (B2) is equipped with outlet pipe (7), thereafter end face is equipped with back collector (13), on wall near the top of the body of heater (27) of oval water jacket (B2) rear end and water jacket (B2), the smoke exhaust pipe (12) that is connected with three loop flues (10) is installed, has ash disposal mouth (6) on the antetheca of the body of heater (27) of three backhaul flue (10) front ends; Two side collection case convection tube groups (B3) lay respectively at the inboard of body of heater (27) two side, and and the outside of the two side of arch water jacket (B1) between be separated with distance, its space constitutes two return flue (24); Rear set box convection tube group (B4) is positioned at the inboard of body of heater (27) aft bulkhead, and be spaced a distance with the aft bulkhead of arch water jacket (B1), this is apart from constituting local expansion space (16), and this space promptly is a secondary combustion chamber, also is flue gas dilatation deceleration ash fall chamber; Be separately installed with smoke barrier (5) on the outer surface of the two side of arch water jacket (B1) and on the outer surface of aft bulkhead, smoke barrier (5) extends upwardly to the top of body of heater (27) and is tightly connected with it, the two side ends of arch water jacket (B1) rear end wall smoke barrier (5) is tightly connected mutually with the rear end of arch water jacket (B1) two side smoke barrier (5) respectively, the front end wall of the front end of arch water jacket (B1) two side smoke barrier (5) and body of heater (27) is spaced a distance, so that two return flue (24) is connected with three backhaul flues (10); Both sides collection case convection tube groups (B3) and rear set box convection tube group (B4) include respectively along the upper and lower collection case of body of heater (27) interior sidewall surface horizontal positioned, be communicated with one group of convection bank of vertically arranging between the upper and lower collection case, the front end of the next part case (26) of both sides collection case convection tube groups (B3) is connected with water inlet pipe (9) respectively; Both sides collection case convection tube groups (B3) respectively with rear set box convection tube group (B4), water tube arch (B1), oval water jacket (B2) is connected by pipeline successively and constitutes the two return water route, be connected with communicating pipe (18) between rear set box convection tube group (B4) and the arch water jacket (B1), as shown in Figures 2 and 3, the upper collecting chamber of the upper collecting chamber of both sides collection case convection tube groups (B3) and rear set box convection tube group (B4) is connected with back collector (13) by side communicating pipe (14) and back communicating pipe (15) respectively; Furnace base (B5) includes fire grate (1), ash disposal mouth (21) and (25), blow-off pipe (20).

Because the said structure of boiler of the present invention, make this boiler have two backhaul water routes and three loop Yan Lu, and the mutual reverse flow in water route and cigarette road, thereby the effect that has improved heat exchange have the higher thermal efficiency, have smaller volume, need not add blower fan and cleaner.

Technical characterictic of the present invention is had a bath the boiler except that the heating that is used for normal pressure, can also be applicable to the industry and the civil boiler of other types.

Claims (3)

1, a kind of horizontal, reverse, quick-heating, atmospheric boiler capable of removing smoke and dust, include body of heater (27), arch water jacket (B1), oval water jacket (B2), both sides collection case convection tube groups (B3), rear set box convection tube group (B4), furnace base (B5), the space that arch water jacket (B1) is surrounded constitutes burner hearth (4), oval water jacket (B2) is positioned at the top of body of heater (27), both sides collection case convection tube groups (B3) lay respectively at the inboard of body of heater (27) madial wall, it is characterized in that rear set box convection tube group (B4) is positioned at the inboard of body of heater (27) aft bulkhead, and be spaced a distance with the aft bulkhead of arch water jacket (B1) and constitute a local expansion space (16), be separately installed with smoke barrier (5) on the outer surface of arch water jacket (B1) two side and on the outer surface of aft bulkhead, smoke barrier (5) extends upwardly to the top of body of heater (27) and is tightly connected with it, the two side ends of arch water jacket (B1) rear end wall smoke barrier (5) is tightly connected mutually with the rear end of arch water jacket (B1) two side smoke barrier (5) respectively, the front end wall of the front end of arch water jacket (B1) two side smoke barrier (5) and body of heater (27) is spaced a distance, both sides collection case convection tube groups (B3) are equipped with water inlet pipe (9) at the position near its front end, outlet pipe (7) is installed on the front end face of oval water jacket (B2), both sides collection case convection tube groups (B3) respectively with rear set box convection tube group (B4), arch water jacket (B1), oval water jacket (B2) is connected by pipeline successively.

2, according to the described boiler of claim 1, it is characterized in that on the front end wall of body of heater (27) and arch water jacket (B1), fire door (2) being installed, smokestack (17) and following smokestack (19) are installed on the rear end wall of arch water jacket (B1), on wall, the smoke exhaust pipe (12) that is connected with three backhaul flues (10) is installed near the top of the body of heater (27) of the top of the body of heater (27) of oval water jacket (B2) rear end and water jacket (B2) rear end and water jacket (B2).

3, according to claim 1 or 2 described boilers, the front end that it is characterized in that the next part case (26) of both sides collection case convection tube groups (B3) is connected with water inlet pipe (9) respectively, be connected with communicating pipe (18) between rear set box convection tube group (B4) and the arch water jacket (B1), the position has the communicating pipe (8) that is connected with arch water jacket (B1) below close its front end of oval water jacket (B2), the upper collecting chamber of the upper collecting chamber of both sides collection case convection tube groups (B3) and rear set box convection tube group (B4) is connected with back collector (13) by side communicating pipe (14) and back communicating pipe (15) respectively.

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