CN211600641U - Quenching boiler with superheater - Google Patents
Quenching boiler with superheater Download PDFInfo
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- CN211600641U CN211600641U CN201922089304.0U CN201922089304U CN211600641U CN 211600641 U CN211600641 U CN 211600641U CN 201922089304 U CN201922089304 U CN 201922089304U CN 211600641 U CN211600641 U CN 211600641U
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Abstract
The utility model discloses a take over sharp quenching boiler of over heater, include: first fire tube boiler and second fire tube boiler, the pot shell of first fire tube boiler is first pot shell, and the pot shell of second fire tube boiler is second pot shell, its characterized in that: the flue gas input end of the first boiler shell is connected with an inlet smoke box, a superheater is arranged between the first fire tube boiler and the second fire tube boiler, the flue gas output end of the second boiler shell is connected with an outlet smoke box, and a smoke outlet is formed in the outlet smoke box; the steam drum is arranged above the first fire tube boiler and the second fire tube boiler, the steam drum is communicated with the first boiler shell and the second boiler shell through a plurality of descending pipes respectively, a plurality of first ascending pipes are arranged at the top of the first boiler shell, a steam outlet of the second ascending pipe steam drum is arranged at the top of the second boiler shell and communicated with a pipe pass input end of the superheater, and the superheater outputs superheated steam. The utility model has the advantages that: the total path from the entering to the discharging of the high-temperature flue gas is greatly shortened, the speed is greatly accelerated, and the quenching effect can be realized.
Description
Technical Field
The utility model relates to a waste heat boiler technical field, concretely relates to rapid cooling waste heat boiler.
Background
The requirement of domestic environmental protection is continuously improved, the total amount of daily domestic garbage and industrial garbage is huge, and the garbage has the characteristics of difficult storage, environmental pollution, difficult degradation, toxicity, harm and the like. The garbage disposal mode comprises landfill and incineration, but because the landfill treatment usually needs more fields and simultaneously is difficult to meet the environmental protection requirement, a lot of garbage is usually disposed by incineration.
The high temperature flue gas after present msw incineration all adopts traditional water tube boiler to carry out the waste heat and collects, traditional vertical water-cooling wall boiler, and traditional water-cooling wall boiler's defect lies in: the floor area of the vertical water-cooled wall boiler is large. Secondly, the boiler steam drum is supported and fixed by a steel frame, and the steel used by the steel frame is large, so that the manufacturing cost of the boiler is increased. And the heat exchange surface of the water-cooled wall boiler is a water-cooled wall, the smoke passes through the hearth, the speed is slow, and the heat exchange efficiency is low, so that the smoke cannot be rapidly cooled in a short time. Fourthly, the superheater is arranged in a flue of the boiler, and is difficult to overhaul. Fifthly, because the water wall boiler is difficult to realize structural sealing, if the flue gas contains acidic gas, such as HCL gas, the corrosion phenomenon is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve is: the quenching boiler with the superheater has the advantages of small occupied area, good heat exchange effect, convenience in maintenance and good sealing effect.
In order to solve the above problem, the utility model adopts the following technical scheme: a quench boiler with superheater, comprising: the boiler comprises two fire tube boilers which are transversely arranged, namely a first fire tube boiler and a second fire tube boiler, wherein the boiler shell of the first fire tube boiler is a first boiler shell, the boiler shell of the second fire tube boiler is a second boiler shell, the smoke input end of the first boiler shell is connected with an inlet smoke box, a superheater is arranged between the first fire tube boiler and the second fire tube boiler, the smoke output end of the first fire tube boiler is communicated with the smoke input end of a superheater cylinder, the smoke output end of the superheater cylinder is communicated with the smoke input end of the second boiler shell, the smoke output end of the second boiler shell is connected with an outlet smoke box, and a smoke outlet is formed in the outlet smoke box; a steam pocket is arranged above the first fire tube boiler and the second fire tube boiler, the steam pocket is communicated with the first boiler shell and the second boiler shell through a plurality of descending pipes respectively, a plurality of first ascending pipes are arranged at the top of the first boiler shell, the first ascending pipes are communicated with the steam pocket, a plurality of second ascending pipes are arranged at the top of the second boiler shell, and the second ascending pipes are communicated with the steam pocket; the steam outlet of the steam pocket is communicated with the tube pass input end of the superheater, and the superheater outputs superheated steam.
Further, in the quenching boiler with the superheater, the down pipes between the steam drum and the first shell and the down pipes between the steam drum and the second shell are respectively positioned on two sides of the bottom of the steam drum; each descending pipe sequentially comprises a first connecting pipe, a second connecting pipe, a transition elbow and a third connecting pipe from top to bottom, the first connecting pipe is arranged from inside to outside and obliquely downwards, the second connecting pipe is arranged vertically, the third connecting pipe is arranged from outside to inside and obliquely upwards, the upper end of the first connecting pipe is connected with the bottom of the steam drum, the lower end of the first connecting pipe is connected with the upper end of the second connecting pipe, the lower end of the second connecting pipe is connected with the third connecting pipe through the transition elbow, the third connecting pipe is connected to the lower end of the side face of the first boiler shell or the side face of the second boiler shell, and a sewage discharge interface is arranged at the bottom of the transition elbow.
Furthermore, in the quenching boiler with the superheater, two ends of the superheater cylinder are respectively connected with the first shell and the second shell, and the inlet smoke box, the first shell, the heat exchanger cylinder, the second shell and the outlet smoke box are sequentially and fixedly connected to form a whole.
Furthermore, in the quenching boiler with the superheater, the bottom of the first boiler shell and the bottom of the second boiler shell are both provided with the boiler shell supporting seats, the boiler shell supporting seats at the bottom of the first boiler shell are fixed, and the rest boiler shell supporting seats are all movable.
Further, aforementioned take rapid cooling boiler of over heater, wherein, all be provided with over heater access door on the over heater barrel of heat exchanger tube bank both sides in the over heater.
Further, the quenching boiler with the superheater is characterized in that a smoke box access door is arranged on the outlet smoke box.
Further, the quenching boiler with the superheater is characterized in that the smoke exhaust port is arranged at the top of the outlet smoke box.
The utility model has the advantages that: one, first firetube boiler, second firetube boiler and over heater have formed a horizontal boiler, first firetube boiler, second firetube boiler provides sufficient heat transfer surface, thereby make whole horizontal boiler's length shorten greatly, and high temperature flue gas is at first firetube boiler, the pipe pass of second firetube boiler is current, this makes high temperature flue gas shorten to exhaust total journey from entering into greatly, speed is effectively accelerated, thereby can realize the effect of rapid cooling, 1130 ℃ high temperature flue gas that msw incineration produced can be in 1 second rapid cooling to 200 ℃, heat exchange efficiency improves greatly. Secondly, the superheater is arranged between the first fire tube boiler and the second fire tube boiler, and saturated steam generated in the steam pocket is led out to the superheater so as to generate superheated steam, so that the heat energy of the whole boiler is fully utilized. And the down pipes among the steam drum, the first fire tube boiler and the second fire tube boiler not only play a role in introducing water in the steam drum into the first boiler shell and the second boiler shell and feeding steam water heated in the boiler shells into the steam drum to form natural water circulation, but also play a role in supporting the steam drum, so that the boiler has the advantages of compact structure, small occupied area and low manufacturing cost. And fourthly, the high-temperature flue gas passes through the tube passes of the first fire tube boiler and the second fire tube boiler, and the tube passes of the first fire tube boiler and the second fire tube boiler can be sealed and detected in advance in the manufacturing process, so that the flue gas tightness of the whole boiler is effectively improved, the leakage corrosion is reduced, and the service life of the boiler is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a quench boiler with a superheater according to the present invention.
Fig. 2 is a schematic view of the supporting structure of the steam pocket in the quenching boiler with the superheater of the present invention.
Detailed Description
The invention will be described in further detail with reference to the drawings and preferred embodiments.
As shown in fig. 1 and 2, a quench boiler with a superheater includes: two fire tube boilers which are transversely arranged, namely a first fire tube boiler 1 and a second fire tube boiler 2, wherein the shell of the first fire tube boiler 1 is a first shell 11, and the shell of the second fire tube boiler 2 is a second shell 21. The flue gas input end of first pot shell 11 is connected with import smoke box 3, is provided with over heater 4 between first fire tube boiler 1 and the second fire tube boiler 2. In order to facilitate maintenance, superheater access doors 42 are arranged on superheater cylinders 41 on two sides of the heat exchange tube bundle in the superheater 4.
The flue gas output end of first pot shell 11 is linked together with the flue gas input end of over heater barrel 41, and the flue gas output end of over heater barrel 41 is linked together with the flue gas input end of second pot shell 21, and the flue gas output end of second pot shell 21 is connected with export smoke box 5, has seted up exhaust port 51 on the export smoke box 5, and exhaust port 51 sets up at the top of export smoke box 5, is provided with smoke box access door 52 on the export smoke box 5.
A steam drum 6 is arranged above the first fire tube boiler 1 and the second fire tube boiler 2, and the steam drum 6 is communicated with the first boiler shell 11 and the second boiler shell 21 through a plurality of down pipes 7 respectively. The top of the first boiler shell 11 is provided with a plurality of first ascending pipes 12, the first ascending pipes 12 are communicated with the bottom of the steam drum 6, the top of the second boiler shell 21 is provided with a plurality of second ascending pipes 22, and the second ascending pipes 22 are communicated with the bottom of the steam drum 6. The steam outlet 61 of the steam pocket 6 is communicated with the input end of the tube pass in the superheater 4, and the tube pass output end of the superheater 4 outputs superheated steam.
In this embodiment, the downcomer 7 between the steam drum 6 and the first boiler shell 11, and the downcomer 7 between the steam drum 6 and the second boiler shell 21 are located at both sides of the bottom of the steam drum 6, respectively. As shown in fig. 2, each downcomer 7 comprises, from top to bottom, a first connecting pipe 71, a second connecting pipe 72, a transition bend 73, and a third connecting pipe 74. The first connecting pipe 71 is arranged from inside to outside and obliquely downwards, the second connecting pipe 72 is arranged vertically, the transition elbow 73 is an arc-shaped bent pipe, and the third connecting pipe 74 is arranged from outside to inside and obliquely upwards. The upper end of the first connecting pipe 71 is connected with the bottom of the steam drum 6, the lower end of the first connecting pipe 71 is connected with the upper end of the second connecting pipe 72, the lower end of the second connecting pipe 72 is connected with the third connecting pipe 71 through a transition elbow 73, the third connecting pipe 74 is connected to the lower end of the side surface of the first boiler shell 11 or the second boiler shell 21, the bottom of the transition elbow 73 is provided with a sewage draining interface 75, and the sewage draining interface 75 is used for periodically draining the deposition in the pipeline. Downcomer 7 has both played the intercommunication effect between steam pocket 6 and first pot shell 11 and the second pot shell 21 for water in the steam pocket 6 enters into in first pot shell 11 and the second pot shell 21 through every downcomer 7, and carry the hot water in the pot shell to steam pocket 6, downcomer 7 has played the supporting role to steam pocket 6 again simultaneously, need not additionally set up the steelframe again and support steam pocket 6, whole equipment cost of manufacture greatly reduced, the structure is compacter, area effectively reduces.
In this embodiment, two ends of the superheater cylinder 41 are respectively connected with the first boiler shell 11 and the second boiler shell 21, and the inlet smoke box 3, the first boiler shell 11, the heat exchanger cylinder 41, the second boiler shell 21 and the outlet smoke box 5 are sequentially and fixedly connected to form a whole. The bottom of the first pot shell 11 and the bottom of the second pot shell 21 are both provided with pot shell supporting seats 8, the pot shell supporting seats 8 positioned at the bottom of the first pot shell 11 are fixed, and the rest pot shell supporting seats 8 are all movable.
The working principle is as follows: flue gas flow: high-temperature flue gas generated by burning the garbage sequentially passes through the inlet smoke box 3, the tube pass of the first fire tube boiler 1, the heat exchanger cylinder 41, the tube pass of the second fire tube boiler 2 and the outlet smoke box 5, and then is discharged from the smoke outlet 51.
A water vapor flow: water with the temperature of 120 ℃ is fed into the steam drum 6, the water in the steam drum 6 enters the first boiler shell 11 and the second boiler shell 21 through the downcomer 7, the steam-water mixture in the first boiler shell 11 enters the steam drum 6 through the first riser 12, and the steam-water mixture in the second boiler shell 21 enters the steam drum 6 through the second riser 22. Saturated steam generated by separation in the steam drum 6 enters the tube pass of the superheater 4 through a pipeline, and the superheater 4 outputs superheated steam. The superheated steam can be adjusted in steam temperature by means of a water spray desuperheater.
The utility model has the advantages that: one, first firetube boiler 1, second firetube boiler 2 and over heater 4 have formed a horizontal boiler, first firetube boiler 1, second firetube boiler 2 provides sufficient heat transfer surface, thereby make the length of whole horizontal boiler shorten greatly, and high temperature flue gas is at first firetube boiler 1, second firetube boiler 2's tube side is current, this makes high temperature flue gas shorten to exhaust total journey from entering into greatly, speed is effectively accelerated, thereby can realize the effect of rapid cooling, 1130 ℃ high temperature flue gas that msw incineration produced can be in 1 second rapid cooling to 200 ℃, heat exchange efficiency improves greatly. Secondly, the superheater 4 is arranged between the first fire tube boiler 1 and the second fire tube boiler 2, and saturated steam generated in the steam pocket 6 is led out to the superheater 4, so that superheated steam is generated, and the heat energy of the whole boiler is fully utilized. And thirdly, the downcomer 7 between the steam drum 6 and the first and second fire tube boilers 1 and 2 plays a role in introducing water in the steam drum 6 into the first and second boiler shells 11 and 21 and conveying steam and water in the boiler shells into the steam drum 6, and also plays a role in supporting the steam drum 6, so that the boiler has the advantages of compact structure, small floor area and low manufacturing cost. Fourthly, high-temperature flue gas passes through in the tube side of first fire tube boiler 1 and second fire tube boiler 2, and the tube side of first fire tube boiler 1 and second fire tube boiler can seal the detection in advance in the manufacturing process to effectively improve the flue gas seal of whole boiler, reduce the condition emergence of leaking the corruption, improve the boiler life-span.
Claims (7)
1. A quench boiler with superheater, comprising: two fire tube boilers transversely arranged-a first fire tube boiler and a second fire tube boiler, wherein the boiler shell of the first fire tube boiler is a first boiler shell, and the boiler shell of the second fire tube boiler is a second boiler shell, and the boiler is characterized in that: the flue gas input end of the first boiler shell is connected with an inlet smoke box, a superheater is arranged between the first fire tube boiler and the second fire tube boiler, the flue gas output end of the first fire tube boiler is communicated with the flue gas input end of a superheater barrel, the flue gas output end of the superheater barrel is communicated with the flue gas input end of the second boiler shell, the flue gas output end of the second boiler shell is connected with an outlet smoke box, and a smoke exhaust port is formed in the outlet smoke box; a steam pocket is arranged above the first fire tube boiler and the second fire tube boiler, the steam pocket is communicated with the first boiler shell and the second boiler shell through a plurality of descending pipes respectively, a plurality of first ascending pipes are arranged at the top of the first boiler shell, the first ascending pipes are communicated with the steam pocket, a plurality of second ascending pipes are arranged at the top of the second boiler shell, and the second ascending pipes are communicated with the steam pocket; the steam outlet of the steam pocket is communicated with the tube pass input end of the superheater, and the superheater outputs superheated steam.
2. A quench boiler with superheater according to claim 1, characterized in that: a down pipe between the steam drum and the first pot shell and a down pipe between the steam drum and the second pot shell are respectively positioned at two sides of the bottom of the steam drum; each descending pipe sequentially comprises a first connecting pipe, a second connecting pipe, a transition elbow and a third connecting pipe from top to bottom, the first connecting pipe is arranged from inside to outside and obliquely downwards, the second connecting pipe is arranged vertically, the third connecting pipe is arranged from outside to inside and obliquely upwards, the upper end of the first connecting pipe is connected with the bottom of the steam drum, the lower end of the first connecting pipe is connected with the upper end of the second connecting pipe, the lower end of the second connecting pipe is connected with the third connecting pipe through the transition elbow, the third connecting pipe is connected to the lower end of the side face of the first boiler shell or the side face of the second boiler shell, and a sewage discharge interface is arranged at the bottom of the transition elbow.
3. A quench boiler with superheater according to claim 2, characterized in that: two ends of the superheater cylinder are respectively connected with the first boiler shell and the second boiler shell, and the inlet smoke box, the first boiler shell, the heat exchanger cylinder, the second boiler shell and the outlet smoke box are sequentially and fixedly connected to form a whole.
4. A quench boiler with superheater according to claim 3, characterized in that: the bottom of the first pot shell and the bottom of the second pot shell are both provided with pot shell supporting seats, the pot shell supporting seats positioned at the bottom of the first pot shell are fixed, and the rest pot shell supporting seats are movable.
5. A quench boiler with superheater according to claim 1, 2 or 3, characterized in that: superheater access doors are arranged on superheater cylinders on two sides of the heat exchanger tube bundle in the superheater.
6. A quench boiler with superheater according to claim 1, 2 or 3, characterized in that: the outlet smoke box is provided with a smoke box access door.
7. A quench boiler with superheater according to claim 1, 2 or 3, characterized in that: the smoke vent sets up the top at the export smoke box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089304.0U CN211600641U (en) | 2019-11-28 | 2019-11-28 | Quenching boiler with superheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089304.0U CN211600641U (en) | 2019-11-28 | 2019-11-28 | Quenching boiler with superheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211600641U true CN211600641U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922089304.0U Active CN211600641U (en) | 2019-11-28 | 2019-11-28 | Quenching boiler with superheater |
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|---|---|
| CN (1) | CN211600641U (en) |
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2019
- 2019-11-28 CN CN201922089304.0U patent/CN211600641U/en active Active
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