CN202791939U - Modular bypass ventilation air waste heat boiler at kiln tail of cement kiln - Google Patents
Modular bypass ventilation air waste heat boiler at kiln tail of cement kiln Download PDFInfo
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- CN202791939U CN202791939U CN2012203423150U CN201220342315U CN202791939U CN 202791939 U CN202791939 U CN 202791939U CN 2012203423150 U CN2012203423150 U CN 2012203423150U CN 201220342315 U CN201220342315 U CN 201220342315U CN 202791939 U CN202791939 U CN 202791939U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
A modular bypass ventilation air waste heat boiler at a kiln tail of a cement kiln is mainly characterized in that heating surface modules are arranged on partial heating surfaces and are independent modules, structures of the heating surface modules are identical, in other words, the heating surface modules are provided with independent frames respectively, heat-insulation guard plates are arranged on the periphery of each frame to form a cylindrical shell, and hoisting mechanisms are further arranged on each frame; heating surfaces of the modules are respectively arranged on the frames inside the shells of the modules; inlet and outlet headers are respectively connected with the heating surfaces of the modules, and one end of each inlet and outlet header is arranged on the outside of the corresponding shell; upper and lower assemblies of the boiler are connected with one another, and upper and lower headers of the modules and up-flow and down-flow tubes of a boiler barrel are connected with one another by pipelines according to specifications. The modular bypass ventilation air waste heat boiler has the advantages that the installation period of the waste heat boiler can be greatly shortened, the labor cost is saved, and the installation expense is greatly lowered; the welding quality can be effectively controlled, and the service life of the boiler is prolonged; and damage to the heating surfaces of the boiler during transportation can be prevented to the greatest extent.
Description
Technical field
The utility model relates to a kind of waste heat boiler, particularly cement kiln tail bypass wind discharging exhaust-heat boiler.
Background technology
In quality coal in cement kiln systems, the crude fuel composition is larger to systematic influence, in order to make system that the faults such as skinning and obstruction not occur, by technological means kiln tail smoke-box to the gas of dore furnace uptake flue is emitted a part, can effectively alleviate on the one hand the generation of fault, can make on the other hand this part flue gas by the bypass boiler water is heated into steam and generate electricity.The bypass boiler adopts loose mail delivery, field erected mode at present, and installation period is 3 months, needs simultaneously a large amount of manpower and materials supports.The main heating surface field installation process flow process of bypass boiler is: the first step, with heating surface erecting by overhang hoisted in position; Second step is with heating surface import and export header hoisted in position; The 3rd step, ground check combination tube panel; The 4th step, the lifting tube panel; The 5th step, the assembly welding of the assembling of tube panel and erecting by overhang and tube panel and import and export header.Need in the above installation steps to carry out a large amount of welding operations under tens even tens welders working environment in the open, the welding job amount is large, and the welding difficulty is higher, and welding quality is difficult to control.The heat exchange efficiency of boiler directly affects the generating efficiency of Waste Heat Power Station, the installation quality of bypass boiler has determined again the height of boiler efficiency, owing to be the loose mail arrival, the job site condition is relatively poor, open work is subject to again season and weather Restricted requirement, be easy to cause hidden danger of quality, affect boiler efficiency.
Summary of the invention
The purpose of this utility model is to provide a kind of cement kiln tail bypass wind discharging exhaust-heat boiler simple in structure, quick for installation.The utility model mainly is that the part assembly with this waste heat boiler manufactures module in advance, and then Assembling is in place from the bottom to top.
The utility model mainly includes following assembly: steelframe platform, gas approach, water-cooling wall, heating surface module, heating surface loose mail, turn to flue, exhanst gas outlet and drum.The boiler integral body that is made of said modules is inverse u shape, around the vertical shaft near smoke inlet, adopt traditional loose mail mounting means that water-cooling wall is set, can not establish the heating surface loose mail in this water-cooling wall, also can establish part heating surface loose mail, described heating surface loose mail can be that the superheater loose mail can also be superheater loose mail and evaporimeter loose mail.In the vertical shaft of water-cooling wall outlet, establish successively each heating surface module along the direction of flow of flue gas.Described heating surface module can be superheater module, evaporator module and economizer module.The heating surface module respectively is independent module, and their structure is all identical to be each own independently framework, is provided with heat insulation backplate around the framework, consists of one section square tube shape shell body, and preferably backplate is double-deck, fill insulant material between the backplate; Framework is provided with ventilating mechanisms; Also be provided with hoisting mechanism on the framework; The heating surface loose mail all supports or is lifted on the framework in the shell body separately; With the import and export header that above-mentioned each heating surface module links to each other, they all have an end to be located at outside the shell body.For avoid the transportation and hoisting process in, rock the section of jurisdiction, crimp, is preferably in the section of jurisdiction fixed mechanism is set on the framework; In above-mentioned each heating surface module, be equipped with the ash removing mechanism corresponding with heating surface in addition.Above-mentioned up and down assembly links to each other, and preferably assembly links to each other by expansion mechanism up and down; The upper and lower header of each heating surface and all connect in accordance with regulations by pipeline with drum.
Its workflow of bypass boiler of the present utility model is summarized as follows: from the flue gas (being not less than 600 ℃) of cement kiln tail smoke taking mouth in gas approach enters the boiler vertical shaft, according to order from bottom to top, pass through first water-cooling wall and superheater, evaporimeter, by turning to flue, flue gas is according to from top to bottom order, the economizer of flowing through, high-temperature flue gas and heated surface bundle are drawn by exhanst gas outlet after carrying out exchange heat at last.The utility model is single boiler of pressing, its feedwater is introduced into the economizer in the boiler vertical shaft, after preheating, send into drum, water in the drum enters respectively again evaporimeter and water-cooling wall, turn back to drum by evaporimeter and water-cooling wall outlet header steam water interface out, the saturated vapor that carries out after carbonated drink is separated enters superheater, reach specified steam parameter through the steam of superheater after, be sent to steam turbine power generation through main steam line.
The utility model compared with prior art has following advantage:
(1) the utility model can be simplified on-the-spot installation procedure, saves labor cost, greatly reduces mounting cost, and expectation can be saved mounting cost about 30%, and developed country and the regional mounting cost relatively more expensive some labours can descend more than 50%;
(2) the utility model can significantly shorten construction period, and the duration can shorten to 1 month by 3 months of traditional approach, and the cement kiln Waste Heat Power Station is gone into operation in advance, and cement production enterprise is benefited early;
(3) the part nucleus equipment of bypass boiler such as superheater, evaporimeter, economizer body are made in boiler factory's plant building, and the processing and manufacturing condition is relatively superior, and welding quality is controlled easily.Because the part heating part (superheater, evaporimeter, economizer) of bypass boiler is made assembling in the boiler factory, so that the workmanship of waste heat boiler integral body improves greatly, this just provides reliably assurance for the long-term safety operation of boiler.
(4) the utility model has been taked the measure of casing encapsulation, the potential safety hazard of farthest having avoided boiler heating surface to be squeezed, to be out of shape and produce with boiler heating surface in transportation.
Description of drawings
Fig. 1 is the utility model example 1 main section simplified schematic diagram of looking.
Fig. 2 is the utility model example 2 main section simplified schematic diagram of looking.
Fig. 3 is the utility model example 3 main section simplified schematic diagram of looking.
Fig. 4 is that the master of the utility model module looks the section simplified schematic diagram.
The specific embodiment
Embodiment 1:
Master at the cement kiln tail modularization tail bypass wind discharging exhaust-heat boiler of example 1 shown in Figure 1 looks in the simplified schematic diagram, and the bypass boiler that this inverse u shape is arranged includes following assembly: steelframe platform 1, gas approach 2, water-cooling wall 3, superheater module 4, evaporator module 5, economizer module 6, turn to flue 7, exhanst gas outlet 8 and drum 9.Wherein, superheater module, evaporator module and economizer modular structure are all identical, as shown in Figure 4, their each own independently frameworks 10 are provided with heat insulation backplate 11 around the framework, consist of one section cylindrical outer casing body, backplate is double-deck, fill insulant material between the backplate, and this backplate is provided with manhole 12; Framework is provided with ventilating mechanisms 13; Also be provided with 2 pairs of hoisting mechanisms 14 on the framework; The heating surface 15 of superheater module, evaporator module and economizer module all is located on the framework in the shell body separately; With the import and export header 16,17 that the heating surface of above-mentioned superheater module, evaporator module and economizer module links to each other, they all have an end to be located at outside the shell body.At framework section of jurisdiction fixed mechanism 18 is set; In above-mentioned each module, be equipped with in addition the rapping-off-ash mechanism 19 corresponding with heating surface.In Fig. 1, above-mentioned up and down assembly links to each other by expansion mechanism 20 again; The upper and lower header of each module and the rising of drum and down-comer all connect in accordance with regulations by pipeline.
Gas approach side of the present utility model becomes inverted U-shaped single boiler of pressing with exhanst gas outlet side vertical shaft by turning to flue to link to each other, its top is provided with a drum, from the exhanst gas outlet to the gas approach, be provided with successively the economizer module, evaporator module and superheater module, its first order economizer lower header 21 links to each other with the feedwater water pump, the upper collecting chamber 22 of this economizer links to each other by tube connector 23 with second level economizer lower header, according to the design needs, economizer can be arranged multistage, be series connection between it, economizer module of the present utility model is 4 grades, the upper collecting chamber of afterbody economizer links to each other with drum by feed pipe 24, the down-comer 25 of drum links to each other with evaporimeter lower headers 26 at different levels respectively, and according to the design needs, evaporimeter can be arranged multistage, be in parallel between it, evaporator module of the present utility model is 4 grades.Evaporimeter upper collecting chambers 27 at different levels link to each other with drum by tedge 28, and drum links to each other with superheater upper collecting chamber 30 by steam fairlead 29 again, and superheater lower header 31 is delivered to steam turbine by pipeline and generated electricity.Bottom wall at gas approach side vertical shaft arranges water-cooling wall in addition, and this water-cooling wall upper collecting chamber 32 links to each other with drum by tedge, and water-cooling wall lower header 33 links to each other with drum by down-comer.
Embodiment 2:
Master at the cement kiln tail modularization tail bypass wind discharging exhaust-heat boiler of example 2 shown in Figure 2 looks in the simplified schematic diagram, and the bypass boiler that this inverse u shape is arranged includes following assembly: steelframe platform, gas approach, water-cooling wall, superheater loose mail 34, evaporator module, economizer module, turn to flue, exhanst gas outlet and drum.Wherein, evaporator module is all identical with the economizer modular structure, and as shown in Figure 4, their each own independently frameworks are provided with heat insulation backplate around the framework, consist of one section cylindrical outer casing body, and backplate is double-deck, fill insulant material between the backplate, and this backplate is provided with manhole; Framework is provided with ventilating mechanisms; Also be provided with 2 pairs of hoisting mechanisms on the framework; The heating surface of evaporator module and economizer module all is located on the framework in the shell body separately; With the import and export header that the heating surface of above-mentioned evaporator module and economizer module links to each other, they all have an end to be located at outside the shell body.At framework the section of jurisdiction fixed mechanism is set; In above-mentioned each module, be equipped with in addition the rapping-off-ash mechanism corresponding with heating surface.In Fig. 2, above-mentioned up and down assembly links to each other by expansion mechanism again; The upper and lower header of each module and the rising of drum and down-comer all connect in accordance with regulations by pipeline.
Gas approach side of the present utility model becomes inverted U-shaped single boiler of pressing with the exhanst gas outlet side by turning to flue to link to each other, its top is provided with a drum, from the exhanst gas outlet to the gas approach, be provided with successively the economizer module, evaporator module and superheater loose mail, its first order economizer lower header links to each other with the feedwater water pump, the upper collecting chamber of this economizer links to each other by tube connector with second level economizer lower header, according to the design needs, economizer can be arranged multistage, be series connection between it, economizer module of the present utility model is 4 grades, the upper collecting chamber of afterbody economizer links to each other with drum by feed pipe, the down-comer of drum links to each other with evaporimeter lower headers at different levels respectively, and according to the design needs, evaporimeter can be arranged multistage, be in parallel between it, evaporator module of the present utility model is 4 grades.Evaporimeter upper collecting chambers at different levels link to each other with drum by tedge, and drum links to each other with the superheater upper collecting chamber by the steam fairlead again, and the superheater lower header is delivered to steam turbine by pipeline and generated electricity.Establish water-cooling wall in addition in the gas approach side lower part, this water-cooling wall upper collecting chamber links to each other with drum by tedge, and the water-cooling wall lower header links to each other with drum by down-comer.
Embodiment 3:
Master at the cement kiln tail modularization tail bypass wind discharging exhaust-heat boiler of example 3 shown in Figure 3 looks in the simplified schematic diagram, and the bypass boiler that this inverse u shape is arranged includes following assembly: steelframe platform, gas approach, water-cooling wall, superheater loose mail, evaporimeter loose mail 35, evaporator module, economizer module, turn to flue, exhanst gas outlet and drum.Wherein, evaporator module is all identical with the economizer modular structure, and as shown in Figure 4, their each own independently frameworks are provided with heat insulation backplate around the framework, consist of one section cylindrical outer casing body, and backplate is double-deck, fill insulant material between the backplate, and this backplate is provided with manhole; Framework is provided with ventilating mechanisms; Also be provided with 2 pairs of hoisting mechanisms on the framework; The heating surface of evaporator module and economizer module all is located on the framework in the shell body separately; With the import and export header that the heating surface of above-mentioned evaporator module and economizer module links to each other, they all have an end to be located at outside the shell body.At framework the section of jurisdiction fixed mechanism is set; In above-mentioned each module, be equipped with in addition the rapping-off-ash mechanism corresponding with heating surface.In Fig. 3, above-mentioned up and down assembly links to each other by expansion mechanism again; The upper and lower header of each module and the rising of drum and down-comer all connect in accordance with regulations by pipeline.
Gas approach side of the present utility model becomes inverted U-shaped single boiler of pressing with the exhanst gas outlet side by turning to flue to link to each other, its top is provided with a drum, from the exhanst gas outlet to the gas approach, be provided with successively the economizer module, evaporator module, evaporimeter loose mail and superheater loose mail, its first order economizer lower header links to each other with the feedwater water pump, the upper collecting chamber of this economizer links to each other by tube connector with second level economizer lower header, according to the design needs, economizer can be arranged multistage, be series connection between it, economizer module of the present utility model is 4 grades, the upper collecting chamber of afterbody economizer links to each other with drum by feed pipe, the down-comer of drum links to each other with evaporimeter lower headers at different levels respectively, and according to the design needs, evaporimeter can be arranged multistage, be in parallel between it, evaporator module of the present utility model is 4 grades.Evaporimeter upper collecting chambers at different levels link to each other with drum by tedge, and drum links to each other with the superheater upper collecting chamber by the steam fairlead again, and the superheater lower header is delivered to steam turbine by pipeline and generated electricity.Establish water-cooling wall in addition in the gas approach side lower part, this water-cooling wall upper collecting chamber links to each other with drum by tedge, and the water-cooling wall lower header links to each other with drum by down-comer.
Claims (6)
1. cement kiln tail modularization tail bypass wind discharging exhaust-heat boiler, it includes following assembly: the steelframe platform, gas approach, water-cooling wall, the heating surface loose mail, turn to flue, exhanst gas outlet and drum, the boiler integral body that is made of said modules is inverse u shape, around the vertical shaft near smoke inlet, adopt traditional loose mail mounting means that water-cooling wall is set, it is characterized in that: in this water-cooling wall or do not establish the heating surface loose mail, or establish part heating surface loose mail, described heating surface loose mail or superheater loose mail or superheater loose mail and evaporimeter loose mail, in the vertical shaft of water-cooling wall outlet, establish successively each heating surface module along the direction of flow of flue gas, described heating surface module can be the superheater module, evaporator module and economizer module, they respectively are independent module, its structure is all identical to be each own independently framework, be provided with heat insulation backplate around the framework, consist of one section square tube shape shell body, also be provided with hoisting mechanism on the framework; The heating surface loose mail of each module all is located on the framework in the shell body separately; The import and export header that links to each other with the heating surface of above-mentioned each module, they all have an end to be located at outside the shell body; Above-mentioned up and down assembly links to each other, and the upper and lower header of each module and the rising of drum and down-comer all connect by pipeline.
2. a kind of cement kiln tail modularization tail bypass wind discharging exhaust-heat boiler according to claim 1 is characterized in that: assembly links to each other by expansion mechanism up and down.
3. a kind of cement kiln tail modularization tail bypass wind discharging exhaust-heat boiler according to claim 1 and 2 is characterized in that: backplate is for double-deck, fill insulant material between the backplate.
4. a kind of cement kiln tail modularization tail bypass wind discharging exhaust-heat boiler according to claim 3 is characterized in that: at module frame heating surface section of jurisdiction fixed mechanism is set.
5. a kind of cement kiln tail modularization tail bypass wind discharging exhaust-heat boiler according to claim 1, it is characterized in that: module frame is provided with ventilating mechanisms.
6. a kind of cement kiln tail modularization tail bypass wind discharging exhaust-heat boiler according to claim 1 is characterized in that: be equipped with the ash removing mechanism corresponding with heating surface in above-mentioned each module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203423150U CN202791939U (en) | 2012-07-16 | 2012-07-16 | Modular bypass ventilation air waste heat boiler at kiln tail of cement kiln |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012203423150U CN202791939U (en) | 2012-07-16 | 2012-07-16 | Modular bypass ventilation air waste heat boiler at kiln tail of cement kiln |
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| CN202791939U true CN202791939U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012203423150U Expired - Fee Related CN202791939U (en) | 2012-07-16 | 2012-07-16 | Modular bypass ventilation air waste heat boiler at kiln tail of cement kiln |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788337A (en) * | 2012-07-16 | 2012-11-21 | 大连易世达新能源发展股份有限公司 | Modular bypass vent waste heat boiler at tail of cement kiln |
| CN105972871A (en) * | 2016-05-06 | 2016-09-28 | 北京立化科技有限公司 | Submerged evaporator |
| CN110762502A (en) * | 2019-10-25 | 2020-02-07 | 上海九荣环境能源科技有限公司 | Modular waste heat boiler heating surface and use method thereof |
| WO2020029048A1 (en) * | 2018-08-06 | 2020-02-13 | 江苏东九重工股份有限公司 | Cement kiln rear portion and bypass waste heat boiler |
-
2012
- 2012-07-16 CN CN2012203423150U patent/CN202791939U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788337A (en) * | 2012-07-16 | 2012-11-21 | 大连易世达新能源发展股份有限公司 | Modular bypass vent waste heat boiler at tail of cement kiln |
| CN105972871A (en) * | 2016-05-06 | 2016-09-28 | 北京立化科技有限公司 | Submerged evaporator |
| WO2020029048A1 (en) * | 2018-08-06 | 2020-02-13 | 江苏东九重工股份有限公司 | Cement kiln rear portion and bypass waste heat boiler |
| CN110762502A (en) * | 2019-10-25 | 2020-02-07 | 上海九荣环境能源科技有限公司 | Modular waste heat boiler heating surface and use method thereof |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 20 / F, block B, No. 32a, Torch Road, high tech Industrial Park, Dalian, Liaoning Province Patentee after: Lida Group Co.,Ltd. Address before: 116023, B building, No. 32, Torch Road, Dalian hi tech Zone, Liaoning, 18 Patentee before: DALIAN EAST NEW ENERGY DEVELOPMENT Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210716 |