CN1412498A

CN1412498A - Coal-fired water heating furnace

Info

Publication number: CN1412498A
Application number: CN 01127545
Authority: CN
Inventors: 王学斌; 李家勤; 李广忠; 王学全; 汪惠玲
Original assignee: ZAOZHUANG DUOLE HEATING EQUIPMENT CO Ltd
Current assignee: ZAOZHUANG DUOLE HEATING EQUIPMENT CO Ltd
Priority date: 2001-10-11
Filing date: 2001-10-11
Publication date: 2003-04-23
Anticipated expiration: 2021-10-11
Also published as: CN1284954C

Abstract

The present invention discloses an environment-protecting coal-fired water-heater furnace, and is characterized by that it has an ash-removing grate formed from tray and fire grate under the furnace cavity, the front and back of bottom of furnace cavity are equipped with air intake plate respectively to form secondary air admission, flame of secondary combustion chamber is formed into the vortex form, and the furnace cavity walls, flue walls, heat-exchange jacket and sandwich water jacket are connected and formed its combined heat-exchange device. Said coal-fired water-heating furnace can use soft coal, hard coal and briquette as fuel.

Description

A kind of coal-fired hot-water heating stove

Technical field

The invention belongs to coal-fired hot-water heating stove, be specifically related to the coal-fired hot-water heating stove that a kind of protection that conforms requires.

Background technology

Introduced a kind of closed warming stove for the 195th page to 196 pages in " moulded coal and energy-saving stove " book that scientific popularization publishing house publishes in September, 1994, a wind enters the top of burner hearth coal charge through a switch control, pass the coal seam against the direction of flame combustion then, the volatile matter material that discharges in the coal seam leads to flue, and " throat " at process burner hearth rear portion is heated when locating and drawing.For guaranteeing abundant burning, secondary air separating is not introduced from the duck eye eye of hollow brick, and locates to mix with the volatile matter material at " throat ", and in the second-time burning Indoor Combustion, secondary combustion chamber is positioned at the back lower place of fuel bed, is built into by special insulation refractory brick, and combustion gas heating boiler back is provided with chimney.This stove uses with being intended to the nonsmoking section through the approval of Britain Chinese Ministry of Environmental Protection, and overall thermal efficiency reaches 70%.But this stove also exists some can improved place: the coal storage space of upper furnace is less, must add fire coal continually on a small quantity during use; The geometry of secondary combustion chamber section is too simple, and secondary wind is only introduced from second-time burning chamber inlet top, influences combustion efficiency; Directly discharged by chimney through flue outlet behind the combustion gas heating boiler, not only the flue dust in the combustion gas enters atmosphere easily, and boiler is also insufficient to the absorption of heat, causes the part thermal loss; Also can be further perfect to burning and temperature controlling.

Summary of the invention

The purpose of this invention is to provide and a kind ofly carry out improved coal-fired hot-water heating stove at above-mentioned prior art, this coal-fired hot-water heating stove burning and heat exchange are more abundant, and smoke medicining dust-removing effect is reliable, is user-friendly to.

Coal-fired hot-water heating stove of the present invention, comprise the cinder chamber that grey slag bucket is housed on the base, the burner hearth of the ash disposal grate of cinder chamber top and ash disposal grate top, the burner hearth front upper has air inlet, the burner hearth back lower place is the exhaust gases passes that leads to secondary combustion chamber, secondary combustion chamber flame export top is a boiler, its inventive point comprises: described boiler is the box-shaped heat exchanging water-jacket of horizontally set, it is a part of combination heat-exchanger rig, in box-shaped heat exchanging water-jacket the place ahead is preceding intercalated water sleeve and the back intercalated water sleeve that constitutes burner hearth, in the box-shaped heat exchanging water-jacket back lower place is the preceding walling of flue intercalated water sleeve that constitutes flue, at box-shaped heat exchanging water-jacket's rear is the rear pass wall intercalated water sleeve that constitutes flue, and the flue partition intercalated water sleeve between the walling of flue before and after being clipped in, above-mentioned water jacket openings at two ends respectively with the inwall of the upright plate clevis layer water jacket in both sides on opening dock mutually, be welded into the integral body that an internal cavities connects, the leading edge of the plate clevis layer water jacket of both sides is corresponding with the outer wall of the preceding intercalated water sleeve of burner hearth, back edge is corresponding with the outer wall of rear pass wall intercalated water sleeve, the upper end of intercalated water sleeve before upper end and the burner hearth, the upper end of intercalated water sleeve behind the burner hearth, the upper end of box-shaped heat exchanging water-jacket's upper end and rear pass wall intercalated water sleeve at grade, the lower end of lower end and preceding walling of flue intercalated water sleeve, the lower end of rear pass wall intercalated water sleeve at grade, the coaming plate around on the back of the combination heat-exchanger rig of said structure and the bottom of two sides and the base links together, and below upright preceding walling of flue intercalated water sleeve, install dividing plate additional one, thereby be separated into the anterior cinder chamber and the flue dust chamber at rear portion, one side leaves dust-cleaning door in the flue dust chamber, and burner hearth is the rear wall by the preceding intercalated water sleeve of intilted plate shape, the inwall of the antetheca of back intercalated water sleeve and both sides intercalated water sleeve constitutes, on the roof of the furnace coal filling hole, be equipped with and upwards start and to cover around the coal that the rear portion bearing pin rotates, be installed in the ash disposal grate of burner hearth end opening, vertically have several fixedly grizzly bars in its tetragonal pallet, have in moving row's the rotating shaft with pallet adapt several to the grid pawl, lateral seat drops in the groove that the pallet central bottom is the garden cambered surface, one end of moving row rotating shaft stretches out outside the body of heater, fixedlys connected with ash disposal grate operating grip, at the leading edge of ash disposal grate, the preceding air intake plate of rectangle of horizontally set is equipped with in the lower end of intercalated water sleeve before the burner hearth, uniform fresh air inlet is arranged on the plate,, the back air intake plate of horizontally set is housed in the back edge of burner hearth bottom ash disposal grate, there is equally distributed fresh air inlet the middle and lower part of back air intake plate, in the one side towards burner hearth, the upper end of fresh air inlet is communicated with the ventilation slot that makes progress, in the one side of burner hearth dorsad, there is the step of one protrusion the fresh air inlet top, above the air intake plate of back, the lower end of intercalated water sleeve is welded with the secondary air channel of horizontally set behind the burner hearth, and its air vent is towards exhaust gases passes, the flue that secondary combustion chamber is made by two refractory materials that are oppositely arranged constitutes, be separately fixed at behind the burner hearth on the intercalated water sleeve rear wall and preceding walling of flue intercalated water sleeve antetheca, in addition, the lower end of back flue also is bearing on the step of back air intake plate, the center of secondary combustion chamber is horizontal cylindrical space, in the one side observation window that is exposed to outside the body of heater is arranged, the two ends of the secondary air channel of exhaust gases passes mouth top have the aid distributing pipe of being close to both sides intercalated water sleeve inwall to pass the back flue to the back lower place, and the both sides of secondary combustion chamber flame export are outward extending reflecting slant, in the box-shaped heat exchanging water-jacket, heat exchanger tube is housed, its water inlet and delivery port pass the intercalated water sleeve outer wall and extend outside the body of heater, and the rear pass intercalated water sleeve is a plate shape, stand upright on the rear portion of combination heat-exchanger rig, leave the flue outlet that passes water jacket samdwich in the middle and upper part, in addition, also leave the heating hot water mouth, heating water return outlet and relief valve connection have the flue change-over panel one in flue partition intercalated water sleeve upper end, the lower edge of plate is provided with turning cylinder, in the sleeve of one end bearing of turning cylinder on being welded on side intercalated water sleeve inside and outside wall, the other end of turning cylinder passes and is welded on the sleeve on the intercalated water sleeve inside and outside wall of another side and stretches out outside the body of heater, fixedlys connected with flue change lever, the flue cleanout is left at rear portion on cushion device is changed in combination, openable insulation cover plate is housed, outside burner hearth front upper air inlet, be to be fixed on burner hearth before the air channel antetheca and the sidewall in air channel, composition square-section on the interlayer water-jacket outer wall, the air channel extends downward coaming plate, communicate with cinder chamber, the air channel antetheca with burner hearth before leave the temperature adjustment air door, the porch in air channel above the temperature adjustment air door, a turnover air channel of horizontally set plate washer on the corresponding position of air intake plate, its turning cylinder is bearing on the two side near the air channel of interlayer water-jacket outer wall before the burner hearth, wherein an end stretches out the air channel sidewall to body of heater, fixedlys connected with the air channel change-over switch, in the both sides of combination heat-exchanger rig, the external packing plate is equipped with at back and top exposed position, filled heat insulating material between clad plate and the combination heat-exchanger rig outer wall outside, on the panel in body of heater front thermometer is housed, temperature probe is installed on the point for measuring temperature of combination heat-exchanger rig, is connected with thermometer by sense line, temperature adjustment knob also is housed on the panel in body of heater front, above the positive temperature adjustment air door of air channel antetheca the flame temperature adjuster is housed, between the two by the sprocket wheel chain drive, the lower end of flame temperature governor lever bar is connecting the air door cover plate of opening and closing the temperature adjustment air door, but the fire door of opening and closing is equipped with in the bottom in body of heater front, the fire door front upper has fresh air inlet, inwardly leads to the air-inlet window that stretch out backward the square-section from bottom to top, in the upper edge of air-inlet window outlet, hang the removable cover that to swing, between air-inlet window and coal lid, be provided with the interlock that the removable cover on the air-inlet window can be closed.

As a kind of improvement of the present invention, can install additional in preceding walling of flue intercalated water sleeve upper end together and the flue gas deflection plate of the same length of preceding walling of flue towards the back upper place.

As another kind of improvement the of the present invention, several plate clevis layer water jacket parallel with walling of flue can be set in the preceding flue between preceding walling of flue intercalated water sleeve and the flue partition intercalated water sleeve, and connect with the intercalated water sleeve of both sides, also can adopt the steel pipe of lateral arrangement and both sides intercalated water sleeve perforation.

Heat exchanger tube among the present invention among the box-shaped heat exchanging water-jacket preferably adopts the helix tube of copper pipe coiling, also can adopt the pipe of turning back.

Be arranged on the interlock between air-inlet window and the coal lid among the present invention, comprise be fixed on the removable cover back from bottom to top backward the inclined-plane of projection, by the two ends of the broken line shape of coal lid forward position to air-inlet window removable cover inclined-plane starting point be tappet, back-moving spring and the packing ring of garden cambered surface and be installed in the coal filling hole antetheca respectively and the air channel antetheca on the hold-down support that is used to support tappet and back-moving spring.

Rotating handle is equipped with at the center of grey slag bucket front panel among the present invention, and the back side of plate has the adjustable plate of a garden shape to fixedly connected with the axle of handle in front, and the center around handle has corresponding air vent on front panel and the adjustable plate.

The air inlet of burner hearth front upper is the bar shaped air inlet that passes its interlayer and tilt in burner hearth that intercalated water sleeve top is offered before burner hearth among the present invention.

In technique scheme, coal filling hole is located at roof of the furnace, and air inlet is intilted strip gab, and the coal storage space of burner hearth top is fully used, and one time coal quantity increases, and the coal number of times reduces; Secondary wind is introduced simultaneously from exhaust gases passes mouth upper and lower, helps the abundant mixing of smoke and gas, and the indoor flame of second-time burning is the eddy current shape, and smoke combustion is more abundant; High-temperature fuel gas is discharged from floss hole through the flue of turning back, and has not only reduced the flue dust in the combustion gas, and the heat in the combustion gas is further absorbed; By regulating the control of air intake realization, for manipulating of user offers convenience to burning and water temperature.

Description of drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a right view of the present invention.

Fig. 3 is the structural representation of parts 31 and associated components among the present invention.

Fig. 4, Fig. 5 are

parts

40 and 42 vertical view and lateral plans among the present invention.

Fig. 6, Fig. 7 are the front view and the left views of parts 25 among the present invention.

Fig. 8, Fig. 9, Figure 10 are front view, vertical view, the left views of parts 70 among the present invention.

Figure 11, Figure 12 are front view, the left views of parts 49 among the present invention.

Figure 13, Figure 14 are front view, the left views of parts 41 among the present invention.

Figure 15, Figure 16 are front view, the left views of parts 27 among the present invention.

The specific embodiment

Below in conjunction with drawings and Examples the present invention is described in further detail.

As Fig. 1, Fig. 2, shown in Figure 3:

On base 1 has the rectangle base plate of 4 legs, be welded with a corral plate 43 all around, be divided into the anterior cinder chamber and the flue dust chamber at rear portion by dividing plate 66, leave the rectangular aperture 46 of the grey slag bucket 41 of can packing in the front of cinder chamber, side in the flue dust chamber is the dust-cleaning door 19 that is used to remove flue dust, what weld on coaming plate 43 is back and two sides of combination heat-exchanger rig 31 bottoms, combination heat-exchanger rig 31 comprises the preceding intercalated water sleeve 50 that constitutes burner hearth 53 from front to back, back intercalated water sleeve 54, the heat exchanging water-jacket 55 of secondary combustion chamber top horizontally set, constitute the preceding walling of flue intercalated water sleeve 61 and the rear pass wall intercalated water sleeve 63 of flue, and be clipped between the two flue partition intercalated water sleeve 62, wherein preceding walling of flue intercalated water sleeve 61 upper ends are lower than heat exchanging water-jacket 55 bottom, above-mentioned water jacket openings at two ends respectively with the plate clevis layer water jacket inwall of both sides on opening dock mutually, be welded into the integral body that an internal cavities connects, the leading edge of the plate clevis layer water jacket of both sides is corresponding with intercalated water sleeve 50 outer walls before the burner hearth, back edge is corresponding with rear pass wall intercalated water sleeve 63 outer walls, the lower end of the lower end of lower end and preceding walling of flue intercalated water sleeve 61 and rear pass wall intercalated water sleeve 63 at grade, the upper end of intercalated water sleeve 50 before upper end and the burner hearth, the upper end of intercalated water sleeve 54 behind the burner hearth, the upper end of heat exchanging water-jacket 55 upper end and rear pass wall intercalated water sleeve 63 at grade, burner hearth 53 is positioned at the front portion of combination heat-exchanger rig 31, rear wall by the preceding intercalated water sleeve 50 of intilted plate shape, the inwall of the intercalated water sleeve that the antetheca of back intercalated water sleeve 54 and both sides are upright constitutes, burner hearth 53 tops have rectangle coal filling hole 29, there is hand-held handle 8 upwards to start above and can covers 9 around the coal that the rear portion bearing pin rotates, the end opening of burner hearth 53 is the ash disposal grates that keep flat, concrete structure is seen Fig. 4, Fig. 5, it comprises with bolt and nut and is fixed on several vertically fixing tetragonal pallets 40 of grizzly bar that have on former and later two tray supporters 71, comprise that also it is several moving rows 42 that the rotating shaft of the grid pawl that adapts with pallet 40 is constituted that have in the groove of garden cambered surface that lateral seat drops on the pallet central bottom, one end of its rotating shaft passes external packing plate 16, fixedlys connected with ash disposal grate operating grip 17.Leading edge at the ash disposal grate, the preceding air intake plate 25 of the horizontally set that connects by lapping plate 24 usefulness bolt and nuts is equipped with in the lower end of intercalated water sleeve 50 before the burner hearth, concrete structure is seen Fig. 6, Fig. 7, preceding air intake plate is the rectangular slab of bending, its equally distributed fresh air inlet 72 in middle part can be a mounting hole, it also can be the hole, garden, back edge at burner hearth 53 bottom ash disposal grates, by the connecting plate 69 on the intercalated water sleeve inwall of both sides, the back air intake plate 70 that is connecting horizontally set with bolt and nut, concrete structure is seen Fig. 8, Fig. 9, Figure 10, there is equally distributed fresh air inlet 73 middle and lower part of back air intake plate 70, it can be mounting hole, it also can be the hole, garden, in one side towards burner hearth, the upper end of fresh air inlet 73 is communicated with the ventilation slot that makes progress 74, in the one side of burner hearth dorsad, the fresh air inlet top is provided with the step of one protrusion, between the lower end of intercalated water sleeve behind the burner hearth 54 and back air intake plate 70 top edges is the exhaust gases passes mouth that connects secondary combustion chamber, ventilation slot 74 by air intake plate 70 tops, back, can feed secondary wind to secondary combustion chamber, be welded with the secondary air channel 49 of horizontally set in the lower end that is positioned at the burner hearth rear wall intercalated water sleeve 54 above the exhaust gases passes mouth, structure is seen Figure 11, Figure 12, its air vent 75 is towards exhaust gases passes 67, secondary combustion chamber is positioned at the burner hearth rear, by two flues made from refractory material 68 that are oppositely arranged, 65 constitute, be separately fixed at location-plate 57 on the antetheca of the rear wall of intercalated water sleeve 54 behind the burner hearth and preceding walling of flue intercalated water sleeve 61, the lower end of back flue 65 also is bearing on the step of back air intake plate 70, the center 64 of secondary combustion chamber is horizontal garden cylindrical space, the observation window 15 that passes intercalated water sleeve and the welding of intercalated water sleeve inside and outside wall and be exposed to external packing plate 16 outsides is arranged in the one side, the bottom at secondary combustion chamber center 64 has exhaust gases passes 67 to lead to the exhaust gases passes mouth of burner hearth 53, the two ends of the secondary air channel 49 of exhaust gases passes mouth top, having the aid distributing pipe 48 of being close to both sides intercalated water sleeve inwall to pass back flue 65 communicates with the space of cinder chamber, the both sides of secondary combustion chamber top flame export are outward extending reflecting slant, be the box-shaped heat exchanging water-jacket 55 who communicates with intercalated water sleeve 54 behind the burner hearth above it, heat exchanger tube 56 is equipped with in the centre, its water inlet 5, delivery port 6 passes intercalated water sleeve outer wall and the welding of intercalated water sleeve outer wall, and stretch out external packing plate 4, at the rear of secondary combustion chamber is upright preceding walling of flue intercalated water sleeve 61, the dividing plate 66 of it and below is separated the flue dust chambers of cinder chamber and flue bottom jointly, the rear portion of combination heat-exchanger rig 31 is rear pass wall intercalated water sleeves 63 of one upright plate shape, leave the flue outlet 37 that passes water jacket samdwich and inside and outside wall welding in the middle and upper part, heating hot water mouth 34 and relief valve connection 36 are also left in top, heating water return outlet 39 is left in the bottom, between preceding walling of flue intercalated water sleeve 61 and rear pass wall intercalated water sleeve 63, be provided with the flue partition intercalated water sleeve 62 that constitutes the flue 60 of turning back, and the flue change-over panel 59 of one rectangle is set in flue partition intercalated water sleeve upper end, the lower edge of plate is welded with turning cylinder, in the sleeve of one end bearing of turning cylinder on being welded on side intercalated water sleeve inside and outside wall, the other end of turning cylinder passes and is welded on the sleeve on the intercalated water sleeve inside and outside wall of another side and stretches out external packing plate 16, fixedly connected with flue change lever 13, when flue change-over panel 59 is covered the flue in its place ahead, smoke directly ventilating is to flue outlet 37, when flue change-over panel 59 blocks the flue outlet 37 at rear, flue gas can be turned back to rear pass by preceding flue and be led to flue outlet 37 then, and with handles 32 openable insulation cover plates 33 are housed on the flue cleanout above the flue.

In order to make the high temperature gas flow after the second-time burning better act on heat exchanging water-jacket 55, can install together flue gas deflection plate 58 additional in preceding walling of flue intercalated water sleeve 61 upper ends towards the back upper place with the same length of preceding walling of flue; For the more heat that absorbs in the flue gas, can in the preceding flue between preceding walling of flue intercalated water sleeve 61 and the flue partition intercalated water sleeve 62, set up several plate clevis layer water jacket 60 parallel with preceding walling of flue intercalated water sleeve 61 and flue partition intercalated water sleeve 62, and connect with the intercalated water sleeve of both sides, also can adopt the steel pipe of lateral arrangement and both sides intercalated water sleeve perforation; Heat exchanger tube 56 among the heat exchanging water-jacket 55 is a helix tube, the employing copper pipe is made, can be desirable the cold water of stove outside and the hot water in the stove are isolated heat exchange, when water inlet 6 inserts running water, delivery port 6 can produce clean hot water, can certainly adopt the purpose of form realization heat exchange such as the pipe of turning back.

The top of intercalated water sleeve 50 before burner hearth, have one and pass the bar shaped air inlet 52 that its interlayer tilts in burner hearth 53, air inlet 52 is outer by being fixed on air channel antetheca 51 and the sidewall of forming air channel, square-section 28 on intercalated water sleeve 50 outer walls before the burner hearth, air channel 28 extends downward the front portion of coaming plate 43, communicate with cinder chamber, adopt intilted bar shaped air inlet can avoid fire coal to enter the air channel, air channel antetheca 51 with burner hearth before leave the temperature adjustment air door 47 of rectangular aperture on the air intake plate 25 corresponding positions, the porch in air channel 28 above temperature adjustment air door 47, turnover air channel barrier 44 of horizontally set, its turning cylinder is bearing on the two side near the air channel 28 of 50 outer walls of intercalated water sleeve before the burner hearth, wherein an end stretches out air channel sidewall and external packing plate 16, fixedlys connected with air channel change-over switch 18.On the outer wall of both sides of making up heat-exchanger rig 31 and back, be welded with several connection supports 30 of the inward at both ends bending made from band iron, the square external packing plate of iron sheet being made with rivet or

screw

4,16 and 38 is fixed on and is connected on the support 30, and filling rock wool 35 or other insulation materials in the gap between clad plate and the combination heat-exchanger rig outer wall outside, same insulation measure is taked at exposed position on combination heat-exchanger rig 31.

Front at body of heater, be disposed with square control panel 7, fixed panel 14 and fire door 2 from top to bottom, control panel 7 is fixedlyed connected with 16 front end with both sides external packing plate 4 respectively with fixed panel 14, above control panel 7, be provided with the lintel plate 10 of fixedlying connected with 16 with both sides external packing plate 4, control panel 7 is equipped with thermometer 12, be connected with temperature probe by sense line, temperature probe is installed on the point for measuring temperature of combination heat-exchanger rig 31 intercalated water sleeves, thus the temperature of reflection heating hot water.Temperature adjustment knob 11 also is housed on the control panel 7, above air channel antetheca 51 positive temperature adjustment air doors 47, flame temperature adjuster 26 is housed, by the sprocket wheel chain drive that links to each other with temperature adjustment knob 11, drive the bolt and nut of flame temperature adjuster 26 and the upper end that promotes lever, the lower end of lever connecting can opening and closing temperature adjustment air door 47 air door cover plate 45, also can be by the opening degree between temperature adjustment knob 11 control temperature adjustment air doors 47 and the air door cover plate 45, thereby the intake of control temperature adjustment air door 47, and then the burning of control stove and the temperature of hot water.Fire door 2 is by two rotating being installed on the body of heater of bearing pin about the same side, can fire door 2 be closed by the positioner 21 of door handle 20 at opposite side, fire door 2 front upper have row's fresh air inlet 3, inwardly directly lead to the air-inlet window 23 that stretches out backward the square-section from bottom to top, upper edge in air-inlet window 23 outlets, hanging with bearing pin and connecting rotating removable cover 22, the back is welded with from bottom to top the inclined-plane of projection backward, do the time spent in no external force, removable cover 22 freely hangs, and air-inlet window 23 is an opening.Interlock between air-inlet window 23 and coal lid 9 comprises the inclined-plane and the chain executing agency 27 of removable cover 22 back, concrete structure is seen Figure 15, Figure 16, it comprises that covering 9 forward positions to the two ends of the broken line shape of air-inlet window removable cover 22 inclined-plane starting points by coal is the tappet 83 of arc surface, back-moving spring 81, back-up ring 80 and hold-down

support

82,84, hold-down support is installed in respectively on coal filling hole 29 antethecas and the air channel antetheca 51 with screw, opening when coal filling hole 29 is that coal lid 9 is when upwards being started, tappet 83 pops up under the effect of back-moving spring 81, the arc surface of its lower end moves to the inclined-plane of upper edge removable cover 22, promoting removable cover 22 swings forward, vent window 23 is closed, excessive flue gas when avoiding coal, also can adopt other mechanical chain mode, reach same purpose.

At the grey slag bucket 41 shown in Figure 13, Figure 14, rotating handle 76 is equipped with at the center of its front panel 77, the back side of plate 77 has the adjustable plate 78 of a circle to fixedly connected with the axle 79 of handle 76 in front, center around handle 76, front panel 77 and adjustable plate 76 have corresponding air vent, rotate the size that handle 76 can change air vent.

Preceding air intake plate 25 in the above-mentioned embodiment, back air intake plate 70, pallet 40 and moving row 42 all adopt cast member, help bearing high temperature and increase the service life.Preceding flue 68 and back flue 65 adopt refractory materials to fire, and also available refractory cement gives the type of making.

Coal-fired hot-water heating stove of the present invention adapts to many coals such as bituminous lump coal, moulded coal, anthracite, and one time coal used more than 10 hours, can supply comfortable house, the central heating voluntarily of medium and small institutional settings, and life hot water can be provided.Smoke dust discharge concentration is 49 milligrams/cubic metre when using bituminous coal; sulfur dioxide emissioning concentration is 157 milligrams/cubic metre; blackness of exhaustion meets the requirement of state environment protecting standard class one zone territory to the boiler Air Pollutant Emission fully less than 1 grade of Lin Geman, and positive balance efficiency can reach 80-85%.

Coal-fired hot-water heating stove of the present invention should be filled with water with heating system before igniting, go into lighter and firewood on ash disposal grate upper berth, and add an amount of coal cinder, light a fire from grey slag bucket porch, simultaneously flue change lever is moved to the in line position of flue outlet, the air channel change-over switch is threaded to open position, treat once to fill up coal after coal cinder ignites, and adjust temperature adjustment knob 80 ℃ of positions, when observation window sees that the secondary combustion chamber flame combustion is powerful, again flue change lever is moved to the position of turning back, the air channel change-over switch is threaded to the closed position, at this moment stove enters the destructive distillation state, normally smooth combustion and heat supply.Along with the prolongation of burner hearth fuel combustion time, lime-ash falls automatically, and the high temperature combustion zone grieshoch is thickeied gradually, at this moment can shake ash disposal grate operating grip, lime-ash is fallen in the grey slag bucket also in time lime-ash is outwelled.Along with the prolongation of burning time, fire coal constantly moves down in the burner hearth, for keeping continuing good combustion, should open the coal top capping in good time and fill fire coal.For keeping abundant heat exchange, should regularly open the dust stratification of the insulation cover plate cleaning heat exchanger plates face of flue top, and remove the indoor cigarette ash of flue dust by dust-cleaning door.Should drain lime-ash before banking up a fire, fill up fire coal, close the fresh air inlet of grey slag bucket, temperature adjustment knob is transferred to the appropriate location can bank up a fire.When restarting, need flue change lever is moved to the in line position of flue outlet, shake ash disposal grate operating grip, and open the fresh air inlet in grey slag bucket front, temperature adjustment knob is transferred to the high temperature position, waiting a moment can normal combustion and heat supply.

Claims

1, a kind of coal-fired hot-water heating stove, comprise the cinder chamber that grey slag bucket (41) are housed on the base (1), the burner hearth (53) of the ash disposal grate of cinder chamber top and ash disposal grate top, burner hearth (53) front upper has air inlet (52), burner hearth (53) back lower place is the exhaust gases passes (67) that leads to secondary combustion chamber, secondary combustion chamber flame export top is a boiler, it is characterized in that: described boiler is the box-shaped heat exchanging water-jacket (55) of horizontally set, it is one of part of combination heat-exchanger rig (31), in box-shaped heat exchanging water-jacket (55) the place ahead is preceding intercalated water sleeve (50) and the back intercalated water sleeve (54) that constitutes burner hearth (53), in box-shaped heat exchanging water-jacket's (55) the back lower place is the preceding walling of flue intercalated water sleeve (61) that constitutes flue, at box-shaped heat exchanging water-jacket's (55) rear is the rear pass wall intercalated water sleeve (63) that constitutes flue, and the flue partition intercalated water sleeve (62) between the walling of flue before and after being clipped in, above-mentioned water jacket openings at two ends respectively with the inwall of the upright plate clevis layer water jacket in both sides on opening dock mutually, be welded into the integral body that an internal cavities connects, the leading edge of the plate clevis layer water jacket of both sides is corresponding with preceding intercalated water sleeve (50) outer wall of burner hearth, back edge is corresponding with rear pass wall intercalated water sleeve (63) outer wall, the upper end of intercalated water sleeve (50) before upper end and the burner hearth, the upper end of back intercalated water sleeve (54), the upper end of box-shaped heat exchanging water-jacket's (55) upper end and rear pass wall intercalated water sleeve (63) at grade, the lower end of lower end and preceding walling of flue intercalated water sleeve (61), the lower end of rear pass wall intercalated water sleeve (63) at grade, the coaming plate (43) around the bottom of the combination heat-exchanger rig (31) of said structure and base (1) are gone up links together, and install one dividing plate (66) additional in the below of upright preceding walling of flue intercalated water sleeve (61), thereby be separated into the anterior cinder chamber and the flue dust chamber at rear portion, leave dust-cleaning door (19) in flue dust chamber one side, burner hearth (53) is by the rear wall of the preceding intercalated water sleeve (50) of intilted plate shape, the antetheca of back intercalated water sleeve (54) and the inwall of both sides intercalated water sleeve constitute, on burner hearth (53) top coal filling hole (29), be equipped with and upwards start and to cover (9) around the coal that the rear portion bearing pin rotates, be installed in the ash disposal grate of burner hearth (53) end opening, vertically have several fixedly grizzly bars in its tetragonal pallet (40), have several grid pawls in moving row's (42) the rotating shaft adapting with pallet, it is in the groove of garden cambered surface that lateral seat drops on pallet (40) central bottom, one end of moving row (42) rotating shaft stretches out outside the body of heater, fixedlys connected with ash disposal grate operating grip (17), at the leading edge of ash disposal grate, the preceding air intake plate (25) of rectangle of horizontally set is equipped with in the lower end of intercalated water sleeve (50) before the burner hearth, equally distributed fresh air inlet (72) is arranged on the plate,, the back air intake plate (70) of horizontally set is housed in the back edge of burner hearth (53) bottom ash disposal grate, there is equally distributed fresh air inlet (73) middle and lower part of back air intake plate (70), in the one side towards burner hearth (53), the upper end of fresh air inlet (73) is communicated with the ventilation slot that makes progress (74), in the one side of burner hearth (53) dorsad, there is the step of one protrusion fresh air inlet (73) top, in the top of back air intake plate (70), the lower end of intercalated water sleeve behind the burner hearth (54) is welded with the secondary air channel (49) of horizontally set, and its air vent (75) is towards exhaust gases passes (67), the flue (68 that secondary combustion chamber is made by two refractory materials that are oppositely arranged, 65) constitute, be separately fixed at behind the burner hearth on intercalated water sleeve (54) rear wall and preceding walling of flue intercalated water sleeve (61) antetheca, in addition, the lower end of back flue (65) also is bearing on the step of back air intake plate (70), the center of secondary combustion chamber (64) is horizontal garden cylindrical space, in the one side observation window (15) that is exposed to outside the body of heater is arranged, the two ends of the secondary air channel (49) of exhaust gases passes (67) inlet top have the aid distributing pipe (48) of being close to both sides intercalated water sleeve inwall to pass back flue (65) to the back lower place, and the both sides of secondary combustion chamber flame export are outward extending reflecting slant, heat exchanger tube (56) is housed in box-shaped heat exchanging water-jacket (55), its water inlet (5) and delivery port (6) pass the intercalated water sleeve outer wall and extend outside the body of heater, and rear pass wall intercalated water sleeve (63) is a plate shape, stand upright on the rear portion of combination heat-exchanger rig (31), leave the flue outlet (37) that passes water jacket samdwich in the middle and upper part, leave heating hot water mouth (34) in addition, heating water return outlet (39) and relief valve connection (36) have one flue change-over panel (59) in flue partition intercalated water sleeve (62) upper end, the lower edge of plate is provided with turning cylinder, in the sleeve of one end bearing of turning cylinder on being welded on side intercalated water sleeve inside and outside wall, the other end of turning cylinder passes and is welded on the sleeve on the intercalated water sleeve inside and outside wall of another side and stretches out outside the body of heater, fixedlys connected with flue change lever (13), the flue cleanout is left at rear portion on combination heat-exchanger rig (31), openable insulation cover plate (33) is housed, and is air channel antetheca (51) and the sidewall that is fixed on the air channel, composition square-section (28) on preceding intercalated water sleeve (50) outer wall of burner hearth outside the air inlet (52) of burner hearth front upper, and air channel (28) extend downward coaming plate (43), communicate with cinder chamber, air channel antetheca (51) with burner hearth before leave temperature adjustment air door (47) on the corresponding position of air intake plate (25), the porch in temperature adjustment air door (47) air channel, top (28), a turnover air channel barrier of horizontally set (44), its turning cylinder is bearing on the two side near the air channel (28) of intercalated water sleeve before the burner hearth (50) outer wall, wherein an end stretches out air channel (28) sidewall to body of heater, fixedlys connected with air channel change-over switch (18), in the both sides of combination heat-exchanger rig (31), external packing plate (4 is equipped with at back and top exposed position, 16,38), filled heat insulating material (35) between clad plate and combination heat-exchanger rig (31) outer wall outside, on the panel (7) in body of heater front thermometer (12) is housed, temperature probe is installed on the point for measuring temperature of combination heat-exchanger rig (31), is connected with thermometer (12) by sense line, temperature adjustment knob (11) also is housed on the panel (7), in the top of the positive temperature adjustment air door of air channel antetheca (51) (47) flame temperature adjuster (26) is housed, between the two by the sprocket wheel chain drive, the lower end of flame temperature adjuster (26) lever is connecting the air door cover plate (45) of opening and closing temperature adjustment air door (47), but the fire door (2) of opening and closing is equipped with in the bottom in body of heater front, fire door (2) front upper has fresh air inlet (3), inwardly leads to the air-inlet window (23) that stretches out backward the square-section from bottom to top, in the upper edge of air-inlet window (23) outlet, hang the removable cover (22) that to swing, between air-inlet window (23) and coal lid (9), be provided with the interlock that the removable cover (22) on the air-inlet window (23) can be closed.

2, a kind of coal-fired hot-water heating stove according to claim 1 is characterized in that: install additional in preceding walling of flue intercalated water sleeve (61) upper end together and the flue gas deflection plate (59) of the same length of preceding walling of flue intercalated water sleeve (61) towards the back upper place.

3, a kind of coal-fired hot-water heating stove according to claim 1, it is characterized in that: several plate clevis layer water jacket (60) parallel with flue partition intercalated water sleeve (62) with preceding walling of flue intercalated water sleeve (61) is set in the preceding flue between preceding walling of flue intercalated water sleeve (61) and flue partition intercalated water sleeve (62), and connect with the intercalated water sleeve of both sides, also can adopt the steel pipe of lateral arrangement and both sides intercalated water sleeve perforation.

4, a kind of coal-fired hot-water heating stove according to claim 1, it is characterized in that: the heat exchanger tube (56) among the box-shaped heat exchanging water-jacket (55) preferably adopts the helix tube of copper pipe coiling, also can adopt the pipe of turning back.

5, ask 1 described a kind of coal-fired hot-water heating stove according to right, it is characterized in that: be arranged on the interlock of air-inlet window (23) and coal lid between (9), comprise be arranged on removable cover (22) back from bottom to top backward the inclined-plane of projection, by the two ends of the broken line shape of coal lid (9) forward position to removable cover (22) inclined-plane starting point be tappet (83), back-moving spring (81) and the packing ring (80) of garden cambered surface and be installed in coal filling hole (29) antetheca respectively and air channel antetheca (51) on the hold-down support (82,84) that is used to support tappet (83) and back-moving spring (81)

6, a kind of coal-fired hot-water heating stove according to claim 1, it is characterized in that: rotating handle (76) is equipped with at the center of grey slag bucket front panel (77), the back side of plate (77) has the adjustable plate (78) of a garden shape to fixedly connected with the axle (79) of handle (76) in front, center around handle (76) has corresponding air vent on front panel (77) and the adjustable plate (78).

7, a kind of coal-fired hot-water heating stove according to claim 1 is characterized in that: the air inlet of burner hearth front upper (52) is the strip gab that passes its interlayer and tilt in burner hearth (53) that intercalated water sleeve before burner hearth (50) top is offered.