CN2204032Y

CN2204032Y - Hot water boiler with moveable furnace chamber with double combustion layer at normal pressure

Info

Publication number: CN2204032Y
Application number: CN 94245275
Authority: CN
Inventors: 余林森
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-11
Filing date: 1994-11-11
Publication date: 1995-07-26
Anticipated expiration: 2004-11-11

Abstract

The utility model relates to a coal saving normal pressure water heating boiler with a double combustion layer and a moveable hearth, which is composed of a preheating water feeding device, a boiler body and a base. The top of the boiler is provided with the preheating water feeding device, the high-temperature zone of the hearth is provided with a unique moveable hearth, and the upper part of a smoke gas outlet of the hearth is provided with a multiple pipe vertical type fire pipe which is a characteristic of the utility model compared with an ordinary device. The purpose of the utility model is to enhance thermal efficiency, the utility model structurally forms necessary rising and descending functions of gas water closed type natural circulation absorbing radiant heat of the hearth as main energy source, and the inside of the hearth is provided with a cyclone guide blade for causing smoke gas on the outlet to be evenly distributed and dust particles to be shocked and subsided. The utility model has the advantages of high thermal efficiency, good effect of environmental protection, convenient repair and little resistance of natural ventilation after the boiler is tried out.

Description

Hot water boiler with moveable furnace chamber with double combustion layer at normal pressure

The utility model belongs to the heat power engineering field, is a kind of normal pressure burner hearth hot-water boiler alive specifically.

Present small scale vertical boiler, double-deck combustion system is comparatively general, fire grate between layer and the layer is many with the water-cooled grate pipe also, the product that has also is designed to enclosed burner hearth alive, but having certain deficiency aspect the carbonated drink Natural Circulation, this to minor diameter boiler heating still can, big because of its water capacity to the major diameter boiler, the thermal efficiency is affected.

The purpose of this utility model is with burner hearth high temperature section calory burning, by the carbonated drink Natural Circulation method that water conducts heat rapidly in pot, and is developed into a kind of double-deck combustion coal-saving normal pressure burner hearth hot-water boiler alive, thermal efficiency height, and convenient maintenance and replacement.

Structure of the present utility model such as Fig. 1, Fig. 2, shown in Figure 3, it is made up of feed water heater 5, boiler furnace 7 and base three parts.

Feed water heater, integrally welded by garden shape water tank 27 and flue gas taper gas skirt 25, and in gas skirt, be provided with horizontal heat pipe 26.

Boiler furnace is made up of shell 29 and flue 33.Shell bottom and flue bottom are welded together by base plate 18, flue upper end orifice plate 23 and the vertical fire tube 30 bottom welding of multitube, upper end and up-hole plate 24 welding, orifice plate periphery in upper end welds together with the shell top then, the perforation of the perforation of the pot 31 and the 37 whole pots of cooking in the formation, burner hearth and gas skirt outlet flue gas.The burner hearth alive 21 of dismantled and assembled replacing has been designed in combustion space, fire grate 36 top in flue, and it is made up of water inlet pipe 35, the distributing pipe 34 that catchments, pipe canopy 22, water-cooled grate 20 and water jacket door 12 and carbonated drink outlet 10 thereof; Pipe canopy and water-cooled grate all design 10 ° inclination angle; Upper furnace still is provided with whirlwind stator 32, and the plain grave that all burning blocks all help combustion conditions closes and the insulation measure.

Base is made up of pressure-bearing garden shape short tube 17, ashpit 16, floor and base plate.

In addition, feed water heater is located at the boiler top, chimney seat 42, heating water return import 4, and the overflow pipe 39 of this device just all is arranged in the feed water heater top, and the interface and the liquid level gauge 3 of this device water inlet and the shared pipe of water outlet still is equipped with in the side.Boiler face is arranged: hearth water sleeve door 12 alive is arranged, and the communicating pipe 10 that has carbonated drink outlet and last pot to join thereon, the burner hearth fire door 11 of living is removed the pipe plug 13 that the water-cooled grate in-tube fouling is used; The fire door 14 that has cleaning fire grate coal quarrel and secondary wind to transfer wind to use; The muck removal door 16 that has scarfing cinder and tertiary air to transfer wind to use; Still indicate the nameplate of characterisitic parameter, factory number, factory's name etc. in this conspicuous position, face top.The low section in side has the boiler feedwater import of certain dirt settling height from sewage draining exit 43; Heating hot water outlet 8 and hot water outlet commonly used 15 are positioned at opposite side; Boiler liquid level meter 2 and water thermometer 9 are contained in feedwater side and water outlet side respectively.Boiler back side top end is provided with steam drain 41; The bottom is enclosed the catchment connection pipeline section 40 of distributing pipe water inlet usefulness of burner hearth of living.

The structural member that the utility model is different from general device by:

1, feed water heater.This device except preheating feedwater, compile the flue gas, still can substitute the effect of the swollen case that rises that general device must be provided with at return water system to the hot water heating backwater.

2, the burner hearth alive of carbonated drink natural cycle system.This device has not only increased the radiation of burner hearth heating surface, and the effect that structurally has the carbonated drink rising and descend, and radiation of burner hearth heat and flue gas enthalpy can be changed into steam water interface and a rapid upwards pot heat transfer water by feedwater in managing.The characteristics of this enclosed carbonated drink natural cycle system, thermal efficiency height, although salt easily precipitation fouling when high temperature in the water, but the design has considered to delay fouling and convenient for maintaining measure, has considered that as horizontal heat pipe the inclination angle, caliber of separation of two necessity select to have considered to have on certain circulating ratio, the structure folding dress burner hearth of living easily.The necessary fashion of this version can be used for can realizing the purposes of two kinds of water quality of a stove to stove outer water tank heat transfer water.

3, the vertical fire tube of multitube.Both increase convection heating surface, improved the flue gas flow rate in the single tube again.Be heated evenly in the pot, be difficult for dust stratification in the pipe.

4, outward appearance appearance uniqueness, technology is simple, and pipeline section is the seamless pipe in stove, and other are the Q235 steel plate, and the interface pipe fitting is standard component.

The utility model compared with prior art, with regard to the hot-water boiler field, double-deck combustion system is comparatively general, fire grate between layer and the layer also substitutes with water-cooled grate, but it is quite a lot that water-cooled grate and collector pipe and flue weld together, even the product that has also is designed to water-cooled grate or upper furnace removable, but all do not form carbonated drink enclosed Natural Circulation of the present utility model, the horizontal pipeline section that is heated lacks the mobile necessary inclination angle of separation of two, heat transfer efficiency when burner hearth high temperature section perisporium metal covering has only been considered high-temperature water, ignored igniting, during low water temperature to the unfavorable factor of fuel combustion, so that general vertical type water heater boiler is all in the not isometrical single big fire tube of exhanst gas outlet, be provided with the horizontal convection current heat pipe of multilayer, this to minor diameter boiler heating still can, very big to the thermal efficiency influence of major diameter vertical boiler.The utility model improves with regard to above deficiency.

Fig. 1 is the utility model front schematic view.

Fig. 2 is the upright sectional schematic diagram of the utility model.

Fig. 3 is the utility model part schematic cross-sectional view.

Enforcement of the present utility model can be as Fig. 1, Fig. 2, shown in Figure 3, and boiler furnace rolls with the Q235 steel plate and is welded.

Claims

Double-deck combustion coal-saving normal pressure stove hall alive hot-water boiler is characterized in that:

A, feed water heater 7, it is integrally welded by garden shape water tank 27 and flue gas taper gas skirt 25, and is provided with horizontal heat pipe 26 in gas skirt, is arranged in the boiler top, can weld with the boiler top, but also bolt loose joint; Be provided with chimney seat 42 at this device top, heating water return import 4, the overflow pipe 39 of this device; This device water inlet and shared single tube interface and liquid level gauge 3 of water outlet is housed in this device side;

The stove hall 21 alive of b, carbonated drink enclosed Natural Circulation, it connects water inlet pipe 35 in pipeline section 40, the stove, the distributing pipe 34 that catchments, pipe canopy 22, water-cooled grate 20 and water jacket door 12 by the boiler back side and carbonated drink outlet 10 is formed; Pipe canopy and water-cooled grate all design 10 ° inclination angle, and the pipe canopy of burning block and the both sides grave of all being always or usually as specified closes measure;

C, the vertical fire tube 30 of multitube are located at the furnace outlet section, this pipe bottom and orifice plate 33 welding of flue upper end, and upper end and 24 welding of shell top up-hole plate form the perforation of burner hearth exhanst gas outlet and feed water heater gas skirt;

D, the appearance of boiler outward appearance and positive layout, outward appearance appearance has the cover plate and the bigger feed water heater of water capacity of certain taper, is arranged on the boiler top, has replaced the hemispherical compacting end socket of general garden shape; Carbonated drink outlet cross over pipe 10 on the positive hearth water sleeve door 12 of living, the specification different according to boiler, its quantity has the layout of 2 above multitubes, and its caliber is selected for use between Dg40-Dg50.