CN206929753U - Membrane wall waste heat steam boiler - Google Patents
Membrane wall waste heat steam boiler Download PDFInfo
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- CN206929753U CN206929753U CN201720770003.2U CN201720770003U CN206929753U CN 206929753 U CN206929753 U CN 206929753U CN 201720770003 U CN201720770003 U CN 201720770003U CN 206929753 U CN206929753 U CN 206929753U
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- membrane wall
- wall
- boiler
- waste heat
- cooling chamber
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Abstract
The utility model discloses a kind of membrane wall waste heat steam boiler, boiler body includes front wall membrane wall, rear wall membrane wall and both walls membrane wall, single middle membrane wall is set close to rear wall membrane wall in boiler body, boiler separating is the first cooling chamber and the second cooling chamber by middle membrane wall；Smoke inlet is arranged on the front wall membrane wall of the first cooling chamber, and exhanst gas outlet is arranged on the top of the second cooling chamber；Drum is set at the top of boiler body, and bottom sets ash bucket.Boiler is divided into two cooling chambers by the utility model using middle membrane wall, and the distance between the bottom of middle membrane wall and ash bucket are very big, and flue gas is by being not easy dust stratification blocking pipeline herein, and backhaul space is big, and maintenance, inspection, coke cleaning are convenient；Pneumatic cover plate valve control ash discharge is set in the bottom of ash bucket, and its rigidity and sealing are very good, because pneumatic cover plate valve is straight channel, in the absence of traditional discharge valve and the blade of mucking machine, therefore are not easy to block.
Description
Technical field
Boiler plant field is the utility model is related to, more particularly, to a kind of membrane wall waste heat steam boiler.
Background technology
Membrane wall waste heat steam boiler is waste heat utilization equipment crucial on dangerous waste incinerator system, is burnt for hazardous waste
Handling process after burning is particularly important, because it has both been connected smoke processing system, is also related to grey Slag treatment, therefore equipment
Normal operation is related to the stability of whole system.Dangerous waste species are more, and characteristic is different, the caused cigarette after revolution is burned
Gas easily produces strong bonding ash and ash quantity is big, is adhered on the convection heating surface of boiler, so as to block flue.Chinese patent
ZL2007200891815 discloses a kind of exhaust-heating boiler of dangerous castoff incineration furnace, is divided boiler by membrane wall among three
Four exhaust gases passes are divided into, in actual use, because middle membrane wall bottom and the gap of bottom deslagging device are small, saliferous
Grey easily product knot blocks flue here, and the small flue gas separation in backhaul space is not thorough, and boiler bottom is gone out using spiral tapping machine
Ash, in actual use spiral tapping machine easily bond dust, the easy card slag of blade, long-term use of mucking machine ash discharge effect meeting
Worse and worse.In the market is also had the boiler of three backhauls or the boiler of spiral tapping machine is substituted using single discharge valve, actual
In use, though boiler clogging makes moderate progress, but still not ideal enough, the easy card slag of blade of discharge valve.For it is easy for construction,
Strengthen heat transfer effect, reduce the consideration of the device space etc., existing membrane wall waste heat steam boiler can enter in boiler mostly
Some tubulations are provided with outlet, multiple rows of convection tube is provided with cooling chamber, in actual use at tubulation and convection tube
Dust stratification often occurs, dust stratification the more is tied the more more until blocking flue.
Utility model content
The applicant easily accumulates for flue, ash discharging gear and the exhanst gas outlet of above-mentioned existing membrane wall waste heat steam boiler
The shortcomings of ash blocks, there is provided a kind of membrane wall waste heat steam boiler rational in infrastructure, long-term use are not in that dust stratification blocks now
As, it can be ensured that equipment normal table in actual motion is run.
Technical scheme is as follows used by the utility model：
A kind of membrane wall waste heat steam boiler, boiler body include front wall membrane wall, rear wall membrane wall and both walls membrane type
Wall, single middle membrane wall is set in boiler body close to rear wall membrane wall, and boiler separating is first cold by middle membrane wall
But room and the second cooling chamber；Smoke inlet is arranged on the front wall membrane wall of the first cooling chamber, and it is cold that exhanst gas outlet is arranged on second
But the top of room；Drum is set at the top of boiler body, and bottom sets ash bucket.
Further improvement as above-mentioned technical proposal：
The exhanst gas outlet is opening up.
The bottom of the ash bucket is provided with pneumatic cover plate valve.
Tubulation is provided with the refractory insulating layer of the boiler body.
The bottom of the middle membrane wall is provided with expansion joint.
The front wall membrane wall, rear wall membrane wall, middle membrane wall and pipeline in both walls membrane wall and roof tube and
Bottom tube forms circulation loop.
The superheater and evaporator are arranged on the lower section of drum at the top of boiler body.
The beneficial effects of the utility model are as follows：
Boiler is divided into two cooling chambers by the utility model using middle membrane wall, the bottom and ash bucket of middle membrane wall it
Between distance it is very big, flue gas is by being not easy dust stratification blocking pipeline herein, and backhaul space is big, maintenance, check, coke cleaning it is convenient；
Pneumatic cover plate valve control ash discharge is set in the bottom of ash bucket, and its rigidity and sealing are very good, because pneumatic cover plate valve is straight-through
Road, in the absence of traditional discharge valve and the blade of mucking machine, therefore it is not easy to block, mechanical breakdown is few, and an only electromagnetism
Valve, compared to discharge valve and mucking machine more power saving；Exhanst gas outlet is arranged to opening up, and compared to lateral openings, flue gas circulates more
Add smooth, it is not easy to dust stratification；Tubulation in inlet and outlet is changed and is located in heat-insulation layer, on the premise of former heat transfer effect is not changed,
Ensure that tubulation is not easy dust stratification so as to block flue simultaneously, while cancel the convection tube of smoke outlet, avoid the strong ash that bonds and exist
Assemble on convection tube, further reduce blocking risk.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 left view.
Fig. 3 is Fig. 1 top view.
In figure：1st, smoke inlet；2nd, exhanst gas outlet；3rd, boiler body；4th, drum；5th, front wall membrane wall；6th, ash bucket；7th, after
Wall membrane wall；8th, middle membrane wall；9th, side wall membrane wall；10th, bottom tube；11st, roof tube；12nd, expansion joint；13rd, pneumatic cover plate valve.
Embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is illustrated.
As shown in Figure 1 and Figure 2, membrane wall waste heat steam boiler described in the utility model is single drum horizontal formula water pipe knot
Structure.Drum 4 is horizontally installed on the top of boiler body 3, and the supporting of its weight is heavy wall common downcomer, is self supporting structure,
Integrally upward free wxpansion during boiler operatiopn.Superheater and evaporator（Not shown in figure）It is arranged on the top drum 4 of boiler body 3
Lower section.Boiler body 3 uses membrane wall structure, front wall membrane wall 5, rear wall membrane wall 7 and the surrounding of both walls membrane wall 9 arrangement
There is steelframe, single middle membrane wall 8 is set close to rear wall membrane wall 7 in boiler body 3, middle membrane wall 8 is by boiler separating
For the first cooling chamber and the second cooling chamber.The bottom of middle membrane wall 8 is provided with expansion joint 12, and expansion joint 12 is used to compensate because of temperature
Degree difference and additional stress caused by mechanical oscillation.Front wall membrane wall 5, rear wall membrane wall 7, middle membrane wall 8 and both walls membrane type
Pipeline in wall 9 forms circulation loop with roof tube 11 and bottom tube 10.As shown in Figure 1, Figure 3, smoke inlet 1 is arranged on boiler sheet
On the front wall membrane wall 5 of body 3, exhanst gas outlet 2 is opening up, is arranged on the boiler body 3 on the second cooling chamber top.In boiler
The bottom of body 3 sets ash bucket 6, sets pneumatic cover plate valve 13 to control ash discharge in the bottom of ash bucket 6.By tubulation（Not shown in figure）
Be arranged in the refractory insulating layer of boiler body 3, flue gas by when be not easy to be bonded in so as to block flue on tubulation, while can
To reduce membrane wall heating surface area, boiler integrally firm consumption is reduced, is not provided with convection tube in boiler, corresponding area is set up in film
On formula wall, there is identical heat transfer effect so as to ensure and be provided with the boiler of convection tube.
Four automatic impact deashing devices are provided with boiler diaphragm type wall（Not shown in figure）, can be absorption in tube wall
On dust shake off, dust falls into ash bucket 6 and is finally cleared out, it is ensured that the heating surface of boiler remains cleaning, protect
Hold good heat exchange state.
During utility model works, the high-temperature dust-containing flue gas that incinerator comes is absorbed, and add using the heat of high-temperature flue gas
Water in hot diaphragm type wall water pipe produces steam, and steam is discharged by the evaporator at top, and the steam of production can supply other works
Industry is used, while a large amount of dusts contained in flue gas cooling is separated.Specific work process is as follows, high-temperature dust-containing flue gas from
Smoke inlet 1 enters boiler, and into the first cooling chamber, average flue gas flow rate about 7m/s, higher cigarette speed makes ash-laden gas the
One cooling chamber is flung downwards, and for flue gas in the presence of inertia and gravity, part cigarette ash, which is separated, falls into ash bucket 6.Flue gas is swollen
Turned at swollen section 12 through 180o and realize centrifugation, soot concentration further reduces, and the setting of two chambers makes middle membrane wall 8
The distance between bottom and ash bucket 6 substantially increase, it is not easy to which knot ash blocks.Flue gas is upwardly into the second cooling chamber, average flue gas
Flow velocity about 3.5m/s, flow velocity is relatively low, cigarette ash further gravitational settling in the second cooling chamber, falls into bottom ash bucket 6.Flue gas drops
Wen Hou, finally discharged from the exhanst gas outlet 2 at the top of the second cooling chamber.Pneumatic cover plate valve 13 is set to control out in the bottom of ash bucket 6
Ash, its rigidity and sealing are very good, because pneumatic cover plate valve 13 is straight channel, in the absence of traditional discharge valve and mucking machine
Blade, therefore be not easy to block, mechanical breakdown is few, and an only magnetic valve, compared to discharge valve and mucking machine more power saving.
Above description is to explanation of the present utility model, is not the restriction to utility model, without prejudice to the utility model
In the case of spirit, the utility model can make any type of modification.
Claims (7)
- A kind of 1. membrane wall waste heat steam boiler, it is characterised in that：Boiler body（3）Including front wall membrane wall（5）, rear wall membrane type Wall（7）With both walls membrane wall（9）, in boiler body（3）Interior close rear wall membrane wall（7）Single middle membrane wall is set（8）, Middle membrane wall（8）It is the first cooling chamber and the second cooling chamber by boiler separating；Smoke inlet（1）It is arranged on the first cooling chamber Front wall membrane wall（5）On, exhanst gas outlet（2）It is arranged on the top of the second cooling chamber；In boiler body（3）Top set drum （4）, bottom sets ash bucket（6）.
- 2. according to the membrane wall waste heat steam boiler described in claim 1, it is characterised in that：The exhanst gas outlet（2）Be open court On.
- 3. according to the membrane wall waste heat steam boiler described in claim 1, it is characterised in that：The ash bucket（6）Bottom set There is pneumatic cover plate valve（13）.
- 4. according to the membrane wall waste heat steam boiler described in claim 1, it is characterised in that：The boiler body（3）Fire resisting Tubulation is provided with heat-insulation layer.
- 5. according to the membrane wall waste heat steam boiler described in claim 1, it is characterised in that：The middle membrane wall（8）Bottom Portion is provided with expansion joint（12）.
- 6. according to the membrane wall waste heat steam boiler described in claim 1, it is characterised in that：The front wall membrane wall（5）, rear wall Membrane wall（7）, middle membrane wall（8）With both walls membrane wall（9）Interior pipeline and roof tube（11）And bottom tube（10）Formation follows Loop back path.
- 7. according to the membrane wall waste heat steam boiler described in claim 1, it is characterised in that：Superheater and evaporator are arranged on pot Furnace body（3）Top drum（4）Lower section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720770003.2U CN206929753U (en) | 2017-06-29 | 2017-06-29 | Membrane wall waste heat steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720770003.2U CN206929753U (en) | 2017-06-29 | 2017-06-29 | Membrane wall waste heat steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206929753U true CN206929753U (en) | 2018-01-26 |
Family
ID=61353319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720770003.2U Active CN206929753U (en) | 2017-06-29 | 2017-06-29 | Membrane wall waste heat steam boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN206929753U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532583A (en) * | 2021-07-16 | 2021-10-22 | 山东国舜建设集团有限公司 | Moisture condensation prevention material level measuring device and method for measuring height of ash bucket |
| CN113654053A (en) * | 2021-08-04 | 2021-11-16 | 鞍山锅炉厂有限公司 | Hazardous waste burns tail gas exhaust-heat boiler |
-
2017
- 2017-06-29 CN CN201720770003.2U patent/CN206929753U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532583A (en) * | 2021-07-16 | 2021-10-22 | 山东国舜建设集团有限公司 | Moisture condensation prevention material level measuring device and method for measuring height of ash bucket |
| CN113654053A (en) * | 2021-08-04 | 2021-11-16 | 鞍山锅炉厂有限公司 | Hazardous waste burns tail gas exhaust-heat boiler |
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