CN2310284Y

CN2310284Y - Atmosphere pressure vertical type water-heating boiler

Info

Publication number: CN2310284Y
Application number: CN 97226879
Authority: CN
Inventors: 马文仁
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-10
Filing date: 1997-09-10
Publication date: 1999-03-10
Anticipated expiration: 2007-09-10

Abstract

The utility model relates to a normal-pressure vertical type water-heating boiler. The upper part of a boiler barrel is provided with an air through hole, or a safety valve, a steam outlet and an explosion prevention piece. The upper part of the fire grate of the lower part of the inner cavity of the boiler barrel is provided with a lower boiler chamber. The lower boiler chamber is communicated with a combusting-out chamber through a central smoke pipe and a smoke pipe bundle. The central smoke pipe whose round holes of the two ends have different diameters is connected with a lower pipe plate. The upper part of the combusting-out chamber is communicated with a chimney. The utility model has the advantages of simple structure, convenient manufacturing technology, effective raw material saving, low production cost, sufficient combustion of the fuel, full heat absorption of the heating surface, high heat efficiency, good energy-saving effect, safe utilization, wide use range, simple operation and convenient maintenance.

Description

The atmospheric vertical hot-water boiler

The utility model relates to a kind of fluid heater that thermal source is arranged, particularly atmospheric vertical hot-water boiler.

Usually, the boiler type that people are used for heating, drinking water, shower is a lot, is according to the size of heating area and definite for the size of used boiler.When the heating area of building surpasses 5000 square metres, adopt the horizontal steam boiler or the hot-water boiler of pressure-bearing mostly.At present, be used for heating and once adopted a kind of DZL ₄-13 type steam boilers.It is mainly by drum, smoke pipe, and water screen tube, down-comer, left and right collection case, traveling-grate stoker, front smoke box, economizer, pressure fan, burner hearth and heat-insulation layer constitute.This boiler is single drum, longitudinal chain grate boiler, and its total heating surface is long-pending to be 130.8 square metres, evaporation capacity be 4 tons/time.This boiler not only floor space is big, and required raw material are many, production cost height, and complex structure, and manufacturing process is loaded down with trivial details; Operation easier is big, and security is not good enough.In addition, for drinking water, bathe and the heating of building below 5000 square metres, once adopted a kind of LS0.4-8 type vertical steam boiler.It mainly is by base and passes through the shell that U type figure is connected with base, the shell Lower Half has fire door, hand hole, both sides, middle part to be communicated with the ear shape pipe of band heat-insulation layer and smoke box, there is manhole the top, and at the inner chamber of shell flue is arranged, and the cavity between flue and the shell constitutes for the retaining chamber.This kind boiler belongs to the small pressure boiler, and its pressure is 8Kg/cm ², use dangerously, radiation heating-surface is long-pending big in the boiler, can only be fuel with the fat coal, and easily cause coal combustion incomplete, waste energy, simultaneously, and the manufacturing process complexity, the scope of application is less.

The purpose of this utility model is to provide a kind of atmospheric vertical hot-water boiler, and it is simple in structure, can save raw material effectively, and production cost is low, and can make fuel combustion complete, heating surface heat absorption fully, the thermal efficiency is from, the wide and safety of the scope of application.

Its solution is: there is the hole that communicates with atmosphere the top of drum, and the fire grate top of drum inner chamber bottom is provided with down furnace chamber; It is made of horizontal water tube, the horizontal water tube arch of lower furnace and interior setting thereof and the lower perforated plate that is connected with lower furnace one end, following furnace chamber by being connected lower perforated plate middle part the center smoke pipe and the smoke pipe bundle that is distributed on around the smoke pipe of center be connected with upper perforated plate on being positioned at secondary furnace one end, and and secondary furnace be connected, secondary furnace is by the horizontal water tube of upper furnace and interior setting thereof, the upper perforated plate that is connected with upper furnace one end constitutes, there is the chimney that is communicated with it top of secondary furnace, but smoke pipe one end Circularhole diameter in aforesaid center is big and other end Circularhole diameter is little.

In addition then, safety valve, steam (vapor) outlet and anti-waterfall sheet are set above drum, promptly can be the dual purpose steam water boiler of band minute-pressure, the pressure of this moment only is 1Kg/cm ²

The utility model mainly is to be provided with the hole that communicates with atmosphere above drum, or is provided with safety valve, steam (vapor) outlet and anti-waterfall sheet, in the fire grate top of drum inner chamber bottom following furnace chamber is arranged, it is communicated with by smoke pipe and the secondary furnace that is connected with upper and lower tube sheet, and there is the chimney that is communicated with it the secondary furnace top, so it is simple in structure, rationally distributed, manufacturing process is easy, can save raw material effectively, and production cost is low, and can make fuel combustion complete, the heating surface heat absorption is fully; Thermal efficiency height; Good energy-conserving effect.Because the thermal power rating of this boiler is 0.07-4.2MW, operating pressure is zero again, and the outlet water temperature is 95 ℃, and return water temperature is 70 ℃, so it is safe in utilization, and scope is wide, and operation easily is easy to maintenance simultaneously.

Embodiment of the present utility model is described in detail in conjunction with the accompanying drawings.

Fig. 1 is embodiment 1, the front view of atmospheric vertical hot-water boiler.

Fig. 2 is the A-A cutaway view.

Fig. 3 is that the K of upper perforated plate is to view.

Fig. 4 is that the N of lower perforated plate is to view.

Fig. 5 is embodiment 2, the front view of atmospheric vertical steam water boiler.

Embodiment 1:

Among Fig. 1 to Fig. 4, drum (14) is welded as a whole by U type circle (3) and the base (1) with its welding, and the top of drum (14) is welded with end socket (24), and the hole (25) and the Pressure gauge (26) that communicate with atmosphere are arranged on it.Drum (14) inner chamber bottom is placed with casting furnace grate (30) by the fire grate support (29) that is welded on the base (1), the top of fire grate (30) is following furnace chamber, it is by lower end and the welding of U type circle (3) inwall, and the upper end through with the lower furnace (15) of the lower perforated plate (17) of its welding sealing, its inner chamber has horizontal water tube (16), horizontal water tube arch (29) and go up horizontal water tube (28) and constitute down with a row of lower furnace (15) inwall welding from bottom to top successively.The lower end of center smoke pipe (27) is the great circle nose end, it is welded on the middle part of lower perforated plate (17) and is communicated with following furnace chamber, around center smoke pipe (27), divide the two-layer smoke pipe bundle that is evenly equipped with 24 smoke pipes (18) composition that is communicated with following furnace chamber, and the upper end of center smoke pipe (27) is the roundlet nose end, it and uniform on every side smoke pipe bundle are communicated with by upper perforated plate (19) and the secondary furnace that is attached thereto, secondary furnace is by upper furnace (21), its upper end is welded with end socket (22), the lower end is welded with upper perforated plate (19), and the horizontal water tube (20) that inwall welding is with it arranged in it and become cross-like to arrange constitutes.The lower end of chimney (23) is welded on the end socket (22), and is communicated with secondary furnace.On the end socket (24) of drum, two hangers (8) are arranged, lateral surface is equipped with thermometer (7) from top to bottom successively, water level meter (9), effluent pipe mouth (10), upper and lower shoot door (11), (12), hot water valve (6), upper and lower fire door (13), (5), water inlet pipe mouth (4), and cleanout door (2) is arranged on the front of base (1).

Embodiment 2:

Among Fig. 5, be connected with the safety valve (32), steam (vapor) outlet (34) and the anti-waterfall sheet (33) that are communicated with drum (14) on drum end socket (24), other is all with embodiment 1.

During use, coal drops on the fire grate (31) from lower furnace door (5), coal-fired Fire Radiation is on lower furnace (15) and horizontal water tube (16), they the two radiant heat is passed to WATER AS FLOW MEDIUM, through horizontal water tube arch (29) reverberation, help coal combustion, and the water pipe that encircles in (29) by horizontal water tube conducts heat to WATER AS FLOW MEDIUM, and red-hot flue gas is upwards mobile from the venthole of horizontal water tube arch (29), successively by horizontal water tube (28), smoke pipe (18) and center smoke pipe (27) continue upwards to flow and carry out heat exchange with WATER AS FLOW MEDIUM simultaneously, thereafter enter secondary furnace, at this moment, by unburnt fuel gas in the open firing point burning fume of center smoke pipe (27) aperture introducing secondary furnace, carry out completing combustion, and through horizontal water tube (20), upper furnace (21) and end socket (22) carry out heat exchange with WATER AS FLOW MEDIUM, surplus cigarette is discharged from chimney (23), and hot water is discharged from effluent pipe mouth (10), and for using, backwater enters recycle applications in the boiler from water inlet pipe mouth (4).

Claims

1, a kind of atmospheric vertical hot-water boiler, comprise drum and flue, it is characterized in that there is big vent hole (25) drum (14) top, fire grate (31) top of drum (14) inner chamber bottom is provided with down furnace chamber, it is by the horizontal water tube (16) of lower furnace (15) and interior setting thereof, (28), horizontal water tube arch (29) and the lower perforated plate (17) that is connected with lower furnace (15) one ends constitute, center smoke pipe (27) and the on every side uniform smoke pipe (18) thereof of following furnace chamber by being connected lower perforated plate (17) middle part is connected with upper perforated plate (19) on being arranged on secondary furnace one end, and and secondary furnace be communicated with, and secondary furnace is by the horizontal water tube (20) of upper furnace (21) and interior setting thereof, the upper perforated plate (19) that is connected with upper furnace (21) one ends constitutes, and there is the chimney (23) that is communicated with it top of secondary furnace.

2, atmospheric vertical hot-water boiler as claimed in claim 1 is characterized in that center smoke pipe (27) two terminal circle pore diameter size difference.

3, atmospheric vertical hot-water boiler as claimed in claim 1 is characterized in that drum (14) top is provided with safety valve (32), steam (vapor) outlet (34) and anti-waterfall sheet (33).