CN201652380U - Pressure-resistant membrane type barrel slag cooler for boilers - Google Patents
Pressure-resistant membrane type barrel slag cooler for boilers Download PDFInfo
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- CN201652380U CN201652380U CN2010201817962U CN201020181796U CN201652380U CN 201652380 U CN201652380 U CN 201652380U CN 2010201817962 U CN2010201817962 U CN 2010201817962U CN 201020181796 U CN201020181796 U CN 201020181796U CN 201652380 U CN201652380 U CN 201652380U
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- slag
- pipe
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- inner barrel
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- 239000002893 slag Substances 0.000 title claims abstract description 69
- 239000012528 membrane Substances 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000003466 welding Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000010884 boiler slag Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model relates to a pressure-resistant membrane type barrel slag cooler for boilers, comprising an outer barrel body (3). A slag inlet chamber (21), a slag outlet chamber (7) and a rotary joint (8) are arranged on the outer barrel body (3). The rotary joint (8) is communicated with a center water distributing pipe (20). The slag cooler is characterized in that an inner barrel body formed by a membrane type wall pipe (11) and fins (13) is fixed in the outer barrel body (3); the membrane type wall pipe (11) is communicated with a water inlet header (22) and a water outlet header (17); the water inlet header (22) is communicated with the center water distributing pipe (20); the water outlet header (17) is communicated with a water outlet pipe; a subsection rack formed by a subsection membrane type wall pipe (10) and fins (13) is arranged in the inner barrel body; the subsection membrane type wall pipe (10) is communicated with a water inlet pipe and the water outlet header (17); the inner barrel body is separated into a plurality of heat exchange units by the subsection rack; the heat exchange units are communicated with the slag inlet chamber (21) and the slag outlet chamber (7); and a screw conveying blade (12) is fixed on the wall of the inner barrel body, and/or a screw conveying blade (14) is fixed on the subsection rack.
Description
One, technical field
The utility model relates to a kind of boiler slag removal cooling device, the pressure resisting film type barrel slag cooler for boiler of especially a kind of CFBB high temperature furnace slag heat recovery.
Two, background technology
Continuous development along with the CFBB technology, the design and fabrication technology of the cold slag slag removal equipment supporting with it has also obtained significant progress, emerge the cold-slag slagging equipment of the multiple type of cooling, multiple layout pattern on the market, and progressively having overcome normal defects such as cooling capacity deficiency, tapping temperature be higher, its range of application is also increasingly extensive.But along with applying on a large scale of cold-slag slagging equipment, its security weakness, the new problems such as difficulty, slagging channel obstruction that maximize also appear day by day, and the situation that the blast of cold-slag slagging device superpressure causes casualties once repeatedly occurs.The theory of safety in production be rooted in the hearts of the people day by day now, the security reliability of Boiler Used Coldly slag slag-draining device more and more obtains vast boiler and uses showing great attention to of producer.How common in the market cold-slag slagging equipment be cooling medium with recirculated water or steam turbine condensate water or boiler chemistry filled water.In special thermal power plant, mainly based on the steam turbine condensate water, its temperature is many about 40 degree, if adopt conventional cold-slag slagging device, because of its hydraulic pressure is low, so cooling water is vaporized above its saturation temperature behind the heat that has absorbed boiler slag easily.And conventional cold-slag slagging Design of device voltage endurance capability only is below the 1.0MPa, therefore very easily produces the superpressure explosion accident, thereby causes casualties.Most of cold slag machine deslagging temperature height, the wearing and tearing of producer's exploitation at present produce leaking and mechanical accident of water-cooling jacket greatly and easily, are difficult to realize the essential safety requirement of product.Simultaneously, because domestic slag granules is generally bigger than normal, goods fluid is not very desirable in the boiler operatiopn, and the situation of slag coking happens occasionally, and multitube cold-slag slagging device limits because of caliber, is easy to cause removing the gred the passage obstruction, exerts oneself thereby influence device.
Chinese patent discloses a kind of drum-type boiler slag-cooling machine of inventor's invention for No. 200720079851.5, comprise and be loaded on cylinder (8) on the frame (17) and that drive by transmission device (12), slag feed pipe (1) is equipped with at cylinder (8) top, by upper perforated plate (6), middle tube sheet (9) and cylinder (8) barrel surround waterway (18), between upper perforated plate (6) and the lower perforated plate (15) many heat exchanger tubes (7) are housed, it is characterized in that being provided with in the waterway (18) even numbered blocks dividing plate (19), every dividing plate (19) bottom is fixed on the middle tube sheet (9), dual-side is individually fixed on cylinder (8) barrel and the center water distributor (10), make adjacent two dividing plates (19), cylinder (8) barrel and center water distributor (10) tube wall are separated into independently water cooling chamber of even number with waterway (18), and the top of water cooling chamber is interconnected; At adjacent two independently in the water cooling chamber, water cooling chamber is communicated with inlet opening (23) on the center water distributor (10), and another water cooling chamber is communicated with backwater chuck (16) by the backwater hole (24) on the middle tube sheet (9).Practice finds that this technology exists still that bearing capacity is poor, safety device lacks, problems such as cooling effect is poor, operation and maintenance cost height.
Three, summary of the invention
The bearing capacity that existing boiler slag-cooling machine exists is low, safety device lacks, problems such as cooling effect is poor, operation and maintenance cost height in order to overcome, the utility model provides a kind of pressure resisting film type barrel slag cooler for boiler, its basic ideas are to adopt unique membrane wall tubular construction, unit-combination type layout, utilize spiral conveying blade to form the spiral way of propelling, exerting oneself according to equipment is divided into the autonomous channel that can bear the pressure more than the 3.0Mpa more than two to slag; Each passage turnover water end (W.E.) utilization collection case compiles, and cooling water flow path adopts the mode suitable, that adverse current combines, thereby the equipment that makes has also effectively guaranteed cooling water flow path in compact more, improved heat exchange efficiency becoming; Slag is by the slag input device, enter the cold slag passage of spirality that the spiral conveying blade that adopts heat-resistant and wear-resistant material to be made is formed respectively, slag rotates in heat exchanger channels sheds propelling, with the mode heat exchange of metal wall while with conduction and radiation, obtains higher heat exchange efficiency.
The concrete technical scheme that the utility model solves its technical problem is: a kind of pressure resisting film type barrel slag cooler for boiler, comprise and be loaded on outer cylinder body on the frame and that drive by drive unit, outer cylinder body one end is equipped with slag feed pipe, slag feed pipe is communicated with slag feeding chamber on being located at outer cylinder body, the outer cylinder body other end is provided with slag removing chamber and is provided with the swivel joint of bringing water pipe and outlet pipe into, swivel joint is communicated with the center water distributor, it is characterized in that:
In outer cylinder body, be fixed with inner barrel by support member, the barrel of inner barrel is made of the inner barrel membrane wall pipe and the fin of alternate welding, one end of inner barrel membrane wall pipe is communicated with water inlet collection case, the other end is communicated with water outlet collection case, water inlet collection case is communicated with the center water distributor, and water outlet collection case is communicated with outlet pipe;
Be provided with the subregion frame in the inner barrel, each subregion frame is made of the subregion membrane wall pipe and the fin of alternate welding, one side of each subregion frame is fixed on the water distributor tube wall of center, opposite side is fixed on the inner barrel barrel, one end of subregion membrane wall pipe is communicated with the subregion water inlet pipe, the subregion water inlet pipe is communicated with water inlet pipe, and the other end of subregion membrane wall pipe is communicated with the subregion outlet pipe, and the subregion outlet pipe is communicated with water outlet collection case;
The subregion frame is separated into a plurality of heat exchange units with inner barrel, and an end of each heat exchange unit is communicated with slag feeding chamber, and the other end is communicated with slag removing chamber;
Be fixed with spiral conveying blade on the barrel of inner barrel, and/or be fixed with spiral conveying blade on the subregion frame, promptly both can adopt wherein a kind of mode, also can adopt dual mode simultaneously.
Further scheme is: the barrel front end outside is equipped with the quick pressure releasing safety guard outside.
Characteristics of the present utility model are: 1) utilize water screen tube to replace traditional water-cooling jacket, utilize the curved surface of pipe to increase heat exchange area, utilize the whole bearing capacity of the voltage endurance capability raising equipment of seamless steel pipe, its bearing capacity reaches more than the 3.0MPa.Under the uniform pressure grade, the heating surface wall thickness is equivalent to 1/3rd of common jacket type cold slag machine drum body wall thickness, but because of the coefficient of heat transfer improves, exchange capability of heat is increased to more than 1.6 times; 2) adopt the heat exchange unit structure, utilize inner membrane type cooling tube that the device interior space is separated into independent heat exchange unit more than three, the inner general mode of full weld that adopts in each unit is welded spiral conveying blade, and adopt best soldering angle, make spiral conveying blade constitute the screw propulsion passage.3) water side Inlet and outlet water adopts the collection case, improves voltage endurance capability, and realizes the uniformity of water distribution, makes cold slag machine form the even temperature field; Adopt following current and adverse current in conjunction with the mode of arranging, prolong heat-exchange time, improve heat exchange efficiency.4) owing to adopt modular heat exchange combination, each slag input unit is than much bigger times of traditional steel pipe, thereby can satisfy the requirement of boiler slag removal to particle diameter fully, as long as can both be cooled off smoothly and discharge by the material of boiler slag removal pipe; 5) dependable performance, over-temp and over-pressure protector simple in structure are set on apparatus body,, still can play effective safeguard protection effect even under the malfunctioning situation of electric protective device, thus the intrinsic safety of the equipment of realization; 6) the utility model is simple and compact for structure, can adopt modularization making, can greatly improve the workmanship and the service life of equipment, and operation maintenance is convenient, and use cost is low, is easy to processing and manufacturing, and cost is low.
Four, description of drawings
Fig. 1 is the outline drawing of embodiment of the present utility model.
Fig. 2 is a kind of version of the A-A cutaway view of Fig. 1.
Fig. 3 is the B-B cutaway view of Fig. 2.
Fig. 4 is the another kind of version of the A-A cutaway view of Fig. 1.
Among the figure: 1, slag feed pipe, 2, sealing ring, 3, outer cylinder body, 4, drive unit; 5, wheel band, 6, take out ash mouthful, 7, slag removing chamber, 8, swivel joint; 9, quick pressure releasing safety guard, 10, subregion membrane wall pipe, 11, inner barrel membrane wall pipe, 12, spiral conveying blade; 13, fin, 14, spiral conveying blade, 15, support roller, 16, frame; 17, water outlet collection case, 18, the subregion outlet pipe, 19, the subregion water inlet pipe; 20, center water distributor, 21, slag feeding chamber, 22, water inlet collection case.
Five, the specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
As Fig. 1, Fig. 2, Fig. 3, a kind of pressure resisting film type barrel slag cooler for boiler, comprise and be loaded on outer cylinder body 3 on the frame 16 and that drive by drive unit 4, outer cylinder body 3 one ends are equipped with slag feed pipe 1, slag feed pipe 1 is communicated with slag feeding chamber 21 on being located at outer cylinder body 3, outer cylinder body 3 other ends are provided with slag removing chamber 7, outer cylinder body 3 other end terminations are provided with the swivel joint 8 of bringing water pipe and outlet pipe into, and swivel joint 8 is communicated with center water distributor 20, it is characterized in that:
In outer cylinder body 3, be fixed with inner barrel by support member, the barrel of inner barrel is made of the inner barrel membrane wall pipe 11 and the fin 13 of alternate welding, one end of inner barrel membrane wall pipe 11 is communicated with water inlet collection case 22, the other end is communicated with water outlet collection case 17, water inlet collection case 22 is communicated with center water distributor 20, and water outlet collection case 17 is communicated with outlet pipe;
Be provided with three subregion framves in the inner barrel, each subregion frame is made of the subregion membrane wall pipe 10 and the fin 13 of alternate welding, one side of each subregion frame is fixed on center water distributor 20 tube walls, opposite side is fixed on the inner barrel barrel, one end of subregion membrane wall pipe 10 is communicated with subregion water inlet pipe 19, subregion water inlet pipe 19 is communicated with water inlet pipe, and the other end of subregion membrane wall pipe 10 is communicated with subregion outlet pipe 18, and subregion outlet pipe 18 is communicated with water outlet collection case 17;
The subregion frame is separated into three heat exchange units with inner barrel, and an end of each heat exchange unit is communicated with slag feeding chamber 21, and the other end is communicated with slag removing chamber 7;
Be fixed with on the barrel of inner barrel on spiral conveying blade 12 and the subregion frame and be fixed with spiral conveying blade 14.
In outer cylinder body 3 front end outsides quick pressure releasing safety guard 9 is installed.
Weld gear ring on outer cylinder body 3, gear ring is connected with drive unit 4 through driving chain;
At the inner barrel water pipe all is seamless steel pipe, and fin 13 is band steel or angle bar etc.;
The general fixed form that adopts non-welding of subregion frame, easy access dismounting and replacing;
The general fixed form that adopts non-welding in subregion frame two ends is according to operating position field-strip flexibly.The flow area of each independent partitions all is far longer than traditional heat exchange steel pipe, so its trafficability characteristic strengthens greatly, and the unusual deslagging (coking) in the boiler operatiopn does not all influence its use; Because inner barrel has been carried out subregion, make the high temperature furnace slag that enters cylindrical shell obtain shunting again, can effectively improve the usage factor of barrel space, equipment volume is dwindled greatly under the identical situation of heat exchange area; Quick pressure releasing safety guard 9 is the security reliability of raising equipment operation effectively;
The said fixing welding that generally is meant in the utility model.
In slag feeding chamber 21, slag is sent in the subregion slag passage by uniform board, channel interior is radially welded the spiral conveying blade of heat-resisting alloy material, spiral conveying blade and inner barrel membrane wall pipe 11 adopt the full weld mode, increase thermal element wearability and heat exchange efficiency, along with cylinder 3 rotations, lime-ash rotates in every group of slag passage sheds propelling, realizes the alternately heat exchange of slag and metal pipe-wall, and cooled slag enters slag removing chamber 7.Cooling water (boiler feedwater or recirculated water) enters swivel joint 8 by metal hose, enter the subregion water inlet pipe 19 of subregion frame, and enter subregion outlet pipe 18 along subregion water inlet pipe 19, return water outlet collection case 17 through inner barrel membrane wall pipe 11 then, after the outlet pipe of swivel joint 8 leaves cold slag machine.
During work, high temperature furnace slag rotates to shed to slag removing chamber 7 in the heat exchanger channels of non-rule and advances.
Fig. 4 is the another kind of version of embodiment of the present utility model.Difference only has been five heat exchange units.
Claims (2)
1. pressure resisting film type barrel slag cooler for boiler, comprise and be loaded on outer cylinder body (3) on the frame (16) and that drive by drive unit (4), outer cylinder body (3) one ends are equipped with slag feed pipe (1), slag feed pipe (1) is communicated with slag feeding chamber (21) on being located at outer cylinder body (3), outer cylinder body (3) other end is provided with slag removing chamber (7) and is provided with the swivel joint (8) of bringing water pipe and outlet pipe into, swivel joint (8) is communicated with center water distributor (20), it is characterized in that:
In outer cylinder body (3), be fixed with inner barrel by support member, the barrel of inner barrel is made of the inner barrel membrane wall pipe (11) and the fin (13) of alternate welding, one end of inner barrel membrane wall pipe (11) is communicated with water inlet collection case (22), the other end is communicated with water outlet collection case (17), water inlet collection case (22) is communicated with center water distributor (20), and water outlet collection case (17) is communicated with outlet pipe;
Be provided with the subregion frame in the inner barrel, each subregion frame is made of the subregion membrane wall pipe (10) and the fin (13) of alternate welding, one side of each subregion frame is fixed on center water distributor (20) tube wall, opposite side is fixed on the inner barrel barrel, one end of subregion membrane wall pipe (10) is communicated with subregion water inlet pipe (19), subregion water inlet pipe (19) is communicated with water inlet pipe, and the other end of subregion membrane wall pipe (10) is communicated with subregion outlet pipe (18), and subregion outlet pipe (18) is communicated with water outlet collection case (17);
The subregion frame is separated into a plurality of heat exchange units with inner barrel, and an end of each heat exchange unit is communicated with slag feeding chamber (21), and the other end is communicated with slag removing chamber (7);
Be fixed with spiral conveying blade (12) on the barrel of inner barrel, and/or be fixed with spiral conveying blade (14) on the subregion frame.
2. pressure resisting film type barrel slag cooler for boiler according to claim 1 is characterized in that: in outer cylinder body (3) front end outside quick pressure releasing safety guard (9) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201817962U CN201652380U (en) | 2010-05-07 | 2010-05-07 | Pressure-resistant membrane type barrel slag cooler for boilers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201817962U CN201652380U (en) | 2010-05-07 | 2010-05-07 | Pressure-resistant membrane type barrel slag cooler for boilers |
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| Publication Number | Publication Date |
|---|---|
| CN201652380U true CN201652380U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201817962U Expired - Fee Related CN201652380U (en) | 2010-05-07 | 2010-05-07 | Pressure-resistant membrane type barrel slag cooler for boilers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813321A (en) * | 2010-05-07 | 2010-08-25 | 张英 | Pressure resisting film type barrel slag cooler for boiler |
| CN103672931A (en) * | 2013-12-24 | 2014-03-26 | 章丘市盛隆锅炉设备有限公司 | Slag cooler |
-
2010
- 2010-05-07 CN CN2010201817962U patent/CN201652380U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813321A (en) * | 2010-05-07 | 2010-08-25 | 张英 | Pressure resisting film type barrel slag cooler for boiler |
| CN103672931A (en) * | 2013-12-24 | 2014-03-26 | 章丘市盛隆锅炉设备有限公司 | Slag cooler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DEYANG KINGTEC ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHANG YING Effective date: 20130417 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 621000 MIANYANG, SICHUAN PROVINCE TO: 618508 DEYANG, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130417 Address after: 618508 Luojiang County in Sichuan Province town of Jinshan Industrial Park Soil Bridge Patentee after: KINGTEC ENERGY TECHNOLOGY CO., LTD. Address before: 621000, Sichuan City, Mianyang province Kai Qu Qu Jin Street, No. 356-15 Tatsu Tatsu technology company Patentee before: Zhang Ying |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20150507 |
|
| EXPY | Termination of patent right or utility model |