A kind of steam boiler
Technical field
The utility model belongs to boiler manfacturing technical field, is related to a kind of boiler, more particularly to a kind of steam boiler.
Background technology
Biomass molding fuel is a kind of clean energy resource of low-carbon environment-friendly, and the zero-emission of carbon dioxide can be reached in burning
Put, sulfur content is only 20% of coal or so.Its nutrient content is high, easily lights, and combustion rate is higher than coal, and production cost is low, resource point
Cloth is wide, and therefore, people make improvement to steam generator, can use biomass granule fuel.
Such as Chinese patent literature data discloses a kind of steam boiler [application number:201420108051.1;Granted publication
Number:CN203731372U], it includes the boiler body that sidepiece has charging aperture, is provided with boiler body bottom and is located at charging aperture
The fire grate structure of lower section, boiler body offer outlet flue relative to the sidepiece of charging aperture, water storage are fixed with the top of boiler body
Case, the top of water storage box have gas outlet valve, and being set up in boiler body has the more heat-exchange tubes that water is conveyed into water storage box, water storage
The more horizontal heat-exchange tubes laterally set are equipped with case, are fixed with the horizontal all ends in heat-exchange tube side on boiler body
Portion be located at outlet flue together with front smoke box, be also fixed with horizontal all end covers of heat-exchange tube opposite side on boiler body
It is located at together and there is the rear smoke box of venthole.
Above-mentioned steam boiler is higher to the utilization rate of high-temperature flue gas, but its rate of heat exchange is still relatively low, and upper vapour amount is slower.
The content of the invention
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, there is provided a kind of heat exchanger effectiveness
High, the upper fireballing steam boiler of vapour.
The purpose of this utility model can be realized by following technical proposal:A kind of steam boiler, including with charging aperture
Housing, is provided with burner hearth made of refractory brick in described housing, it is characterised in that be fixed with described burner hearth and divide burner hearth
Combustion chamber and the partition wall of flue gas chamber are divided into, described combustion chamber is connected with charging aperture, and smoke through hole is offered on described partition wall,
Described housing is equipped with the water inlet pipe in flue gas chamber, the water storage box that is provided with described housing at the top of flue gas chamber and
Steam chest at the top of combustion chamber, described water inlet pipe is connected with more in flue gas chamber and what is be connected with water storage box enters
Water branch pipe, more heat-exchange tubes is equipped with described water storage box, one end of water storage box, which is fixed with, owns heat-exchange tube side
The rear smoke box that end cover is set, the other end of water storage box are fixed with the front smoke box for setting all end covers of heat-exchange tube opposite side, institute
The front smoke box or rear smoke box stated, which are provided with, to be made flue gas into heat-exchange tube and can discharge the smoke discharging structure of flue gas, described water storage box
The water inlet extended in combustion chamber is connected with to be in charge of, described water inlet be in charge of be connected with more in the combustion chamber and with steam chest phase
The water inlet branched pipe of connection, described steam chest top are connected with steam pipe.
In use, water enters from water inlet pipe, fuel burns this steam boiler in the combustion chamber of burner hearth, is produced in combustion chamber
High-temperature flue gas flue gas chamber is entered by smoke through hole, in water inlet pipe and water inlet pipe in flue gas chamber water carry out heat exchange, add
Water after heat enters in water storage box, and high-temperature flue gas is entered in heat-exchange tube by smoke discharging structure, and the water in water storage box is entered again
Row heat exchange, then high-temperature flue gas discharged by smoke discharging structure, heated water is flow into water by intaking to be in charge of in water storage box
In branched pipe, flame and high-temperature flue gas in combustion chamber carry out heat exchange, branched pipe of now intaking to the water in water inlet branched pipe
The high vaporization of interior coolant-temperature gage is to form the steam entered in steam chest, and steam is discharged from steam pipe, and said process is to high-temperature flue gas
Utilization rate it is high, heat exchanger effectiveness is high, heated water heat exchange again at combustion chamber in water inlet pipe, forms steam
Speed is fast.
In a kind of above-mentioned steam boiler, described water inlet branched pipe includes more vertical in combustion chamber and intervals
The VERTICAL TUBE of arrangement, the bottom of described VERTICAL TUBE is in charge of with water inlet to be connected, and the top of described VERTICAL TUBE is connected with one
Root is laterally set and the transverse pipe at the top of the combustion chamber, described transverse pipe be connected with some connected with steam chest go out vapour
Pipe.Such reasonable structural arrangement, combustion chamber is high to vertical tube heat exchange degree, and transverse pipe serves buffering charge for remittance effect, laterally
Pipe is abundant with combustion chamber heat exchange, and established steam is entered in steam chest from steam outlet pipe in it.
In a kind of above-mentioned steam boiler, described smoke through hole is set close to side wall of the burner hearth away from charging aperture, institute
The smoke discharging structure stated offers the smoke inlet connected with flue gas chamber including front smoke box bottom, and water is fixed with the middle part of described front smoke box
Put down and front smoke box is separated into the dividing plate of cavity of resorption and epicoele, described front smoke box is connected with the smoke door at epicoele.
High-temperature flue gas passes through whole combustion chamber, then enters flue gas chamber from smoke through hole, again from entering cigarette after whole flue gas chamber
Mouth enters cavity of resorption, and then high-temperature flue gas entering part heat-exchange tube passes to rear smoke box, and then high-temperature flue gas enters other part
Heat exchange passes to epicoele, then is discharged from smoke door, and such high-temperature flue gas is when delay in combustion chamber, flue gas chamber and heat-exchange tube
Between it is long, heat exchange is abundant, high to the heat utilization ratio of high-temperature flue gas.
In a kind of above-mentioned steam boiler, air-introduced machine is connected with the top of described front smoke box.So make it that smoke is suitable
Freely.
In a kind of above-mentioned steam boiler, described burner hearth is connected with the ash-digging gate communicated with combustion chamber, described stove
Thorax is also associated with the shoot door communicated with flue gas chamber, and described rear smoke box is connected with ash door, described ash-digging gate and shoot door
It is respectively positioned in side wall of the burner hearth away from charging aperture.It is convenient and swift so to clear up ashes.
In a kind of above-mentioned steam boiler, safety valve, pressure gauge are connected with the top of described steam chest.Such steam chest
Interior pressure observation is convenient, and safety valve ensure that the safe to use of steam chest.
Compared with prior art, the structure setting of this steam boiler is reasonable, high to the utilization rate of high-temperature flue gas, heat exchange effect
Rate is high, and upper vapour speed is fast, and clears up conveniently, safe to use.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of this steam boiler.
Fig. 2 is the structural representation that this steam boiler removes housing and partial hearth.
Fig. 3 is that this steam boiler removes housing and partial hearth in the structural representation of another angle.
Fig. 4 is the backsight structural representation that this steam boiler removes housing and partial hearth.
In figure, 1, housing;1a, charging aperture;2nd, burner hearth;2a, combustion chamber;2b, flue gas chamber;3rd, partition wall;3a, smoke through hole;4、
Water inlet pipe;5th, water storage box;6th, steam chest;7th, water inlet pipe;8th, heat-exchange tube;9th, rear smoke box;10th, front smoke box;10a, smoke inlet;
10b, cavity of resorption;10c, epicoele;11st, water inlet is in charge of;12nd, water inlet branched pipe;12a, VERTICAL TUBE;12b, transverse pipe;12c, steam outlet pipe;
13rd, steam pipe;14th, dividing plate;15th, smoke door;16th, air-introduced machine;17th, ash-digging gate;18th, shoot door;19th, ash door;20th, safety
Valve;21st, pressure gauge.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, this steam boiler includes the housing 1 with charging aperture 1a, is provided with housing 1
Burner hearth 2 made of refractory brick, the partition wall 3 that burner hearth 2 is divided into combustion chamber 2a and flue gas chamber 2b, combustion chamber are fixed with burner hearth 2
2a is connected with charging aperture 1a, and smoke through hole 3a is offered on partition wall 3, and housing 1 is equipped with the water inlet pipe 4 in flue gas chamber 2b,
The water storage box 5 and the steam chest 6 at the top of combustion chamber 2a, water inlet pipe 4 being provided with housing 1 at the top of flue gas chamber 2b are connected with
More are equipped with more heat-exchange tubes 8 in the water inlet pipe 7 that flue gas chamber 2b is interior and is connected with water storage box 5, water storage box 5,
One end of water storage box 5 is fixed with the rear smoke box 9 for setting all end covers in the side of heat-exchange tube 8, and the other end of water storage box 5 is fixed with
The front smoke box 10 that all end covers of the opposite side of heat-exchange tube 8 are set, front smoke box 10 or rear smoke box 9, which are provided with, makes flue gas enter heat friendship
Change pipe 8 and the smoke discharging structure of flue gas can be discharged, water storage box 5 is connected with the water inlet extended in combustion chamber 2a and is in charge of 11, and water inlet is in charge of
The water inlet branched pipe 12 that 11, which are connected with more, is connected in combustion chamber 2a and with steam chest 6, the top of steam chest 6 are connected with steaming
Steam pipe 13.
Further describe in detail, water inlet branched pipe 12 includes more vertical in the combustion chamber 2a and spaced VERTICAL TUBEs
12a, VERTICAL TUBE 12a bottom are in charge of 11 with water inlet and are connected, and VERTICAL TUBE 12a top is connected with one and laterally sets simultaneously position
Transverse pipe 12b at the top of combustion chamber 2a, transverse pipe 12b are connected with three steam outlet pipe 12c connected with steam chest 6.Smoke through hole
3a is set close to side wall of the burner hearth 2 away from charging aperture 1a, and smoke discharging structure offers and flue gas chamber 2b including the bottom of front smoke box 10
The smoke inlet 10a of connection, the middle part of front smoke box 10 be fixed with level and by front smoke box 10 be separated into cavity of resorption 10b and epicoele 10c every
Plate 14, front smoke box 10 are connected with the smoke door 15 at epicoele 10c.
The top of front smoke box 10 is connected with air-introduced machine 16, and burner hearth 2 is connected with the ash-digging gate 17 communicated with combustion chamber 2a, burner hearth
2 are also associated with the shoot door 18 that is communicated with flue gas chamber 2b, and rear smoke box 9 is connected with ash door 19, and ash-digging gate 17 and shoot door 18 are equal
In side wall of the burner hearth 2 away from charging aperture 1a, the top of steam chest 6 is connected with safety valve 20, pressure gauge 21.
This steam boiler is in use, water enters from water inlet pipe 4, and fuel burns in the combustion chamber 2a of burner hearth 2, combustion chamber 2a
High-temperature flue gas caused by interior enters flue gas chamber 2b by smoke through hole 3a, to the water in water inlet pipe 4 and water inlet pipe 7 in flue gas chamber 2b
Heat exchange is carried out, water after heating enters in water storage box 5, and high-temperature flue gas enters cavity of resorption 10b from smoke inlet 10a again, then high
Warm flue gas entering part heat-exchange tube 8 passes to rear smoke box 9, and then high-temperature flue gas passes to epicoele 10c into other part heat exchange,
Hydrothermal exchange in water storage box 5 is abundant, and high-temperature flue gas is discharged from smoke door 15 afterwards, in water storage box 5 heated water by
Water inlet is in charge of 11 and flow into water branched pipe 12, and the flame and high-temperature flue gas in combustion chamber 2a are to VERTICAL TUBE 12a heat exchange degree
Height, transverse pipe 12b serve buffering charge for remittance effect, and transverse pipe 12b and combustion chamber 2a heat exchanges are abundant, established steam in it
Entered from steam outlet pipe 12c in steam chest 6, steam is discharged from steam pipe 13, and said process is high to the utilization rate of high-temperature flue gas, heat
Exchange efficiency is high, heated water heat exchange again at combustion chamber 2a in water inlet pipe 7, it is fast to form vapor (steam) velocity.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.