CN106196001B - The vertical convection superheater of medium-pressure boiler - Google Patents

The vertical convection superheater of medium-pressure boiler Download PDF

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Publication number
CN106196001B
CN106196001B CN201610749052.8A CN201610749052A CN106196001B CN 106196001 B CN106196001 B CN 106196001B CN 201610749052 A CN201610749052 A CN 201610749052A CN 106196001 B CN106196001 B CN 106196001B
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China
Prior art keywords
hanger bracket
superheater
convection
jet chimney
column
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CN201610749052.8A
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Chinese (zh)
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CN106196001A (en
Inventor
陈伟
陈云龙
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Jiangsu Huineng Heavy Industry Co., Ltd
Original Assignee
JIANGSU HUINENG BOILER Co Ltd (DANYANG BOILER AUXILIARY MACHINERY PLANT Co LTD)
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Application filed by JIANGSU HUINENG BOILER Co Ltd (DANYANG BOILER AUXILIARY MACHINERY PLANT Co LTD) filed Critical JIANGSU HUINENG BOILER Co Ltd (DANYANG BOILER AUXILIARY MACHINERY PLANT Co LTD)
Priority to CN201610749052.8A priority Critical patent/CN106196001B/en
Publication of CN106196001A publication Critical patent/CN106196001A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22GSUPERHEATING OF STEAM
    • F22G3/00Steam superheaters characterised by constructional features; Details of component parts thereof
    • F22G3/009Connecting or sealing of superheater or reheater tubes with collectors or distributors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22GSUPERHEATING OF STEAM
    • F22G7/00Steam superheaters characterised by location, arrangement, or disposition
    • F22G7/12Steam superheaters characterised by location, arrangement, or disposition in flues

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)

Abstract

The invention discloses the vertical convection superheaters of medium-pressure boiler, the superheater includes hanger bracket, several columns convection type jet chimney is equipped on the hanger bracket, the both ends of convection type jet chimney described in each column are welded with connector, the connector cooperates and is fastenedly connected with the hanger bracket, and the air outlet side of convection type jet chimney described in several columns is equipped with flue gas distributor;The superheater can be realized uniform gas distributed effect, and vapor (steam) temperature is uniform, use convenient for preferably recycling, and it ensure that the degree of being heated evenly of each column convection superheater pipeline, and the mounting structure of entire superheater is simple, and stability is high, easy to disassemble, maintenance.

Description

The vertical convection superheater of medium-pressure boiler
Technical field
The present invention relates to a kind of vertical convection superheaters of medium-pressure boiler.
Background technique
Superheater (superheater) is that the saturated steam under certain pressure is heated under relevant pressure in boiler The heating surface of overheated steam.Steam is further heated to the component of overtemperature, also known as steam in boiler from saturation temperature Superheater.Most of Industrial Boiler does not install superheater, because many industrial process streams and living facilities only need to be saturated steaming Vapour.In power station, locomotive and marine boiler, in order to improve the thermal efficiency of cycle of entire Steam Power Equipment, it was typically equipped with Hot device.The moisture content in turbine discharge can be reduced using superheated steam.
Superheater can also reduce flue-gas temperature, and the heat in recovered flue gas improves boiler efficiency, the flue gas temperature of furnace outlet Spend it is relatively high, be 1000---1100 degree, wherein contain many heats, for flue gas after superheater, temperature is down to 700---800 Degree, superheater have recycled part of smoke heat;Although what is used in existing middle pressure superheater is convection superheater mostly, But when flue gas and superheater jet chimney are contacted, flow velocity is not easy to control, does not adapt to the mistake of medium-pressure boiler Hot device uses, and the flow velocity that cannot preferably adjust flue gas acts on it preferably with convection superheater, causes pair Flow superheater heating surface is uneven, and there are larger differences for the temperature that steam is taken out of.
Summary of the invention
In view of the above problems, the present invention is intended to provide the vertical convection superheater of medium-pressure boiler, the superheater It can be realized uniform gas distributed effect, vapor (steam) temperature is uniform, uses convenient for preferably recycling, and ensure that each column convection current The degree of being heated evenly of formula superheater pipeline, and the mounting structure of entire superheater is simple, and stability is high, easy to disassemble, maintenance.
To achieve the goals above, the technical solution adopted in the present invention is as follows:
The vertical convection superheater of medium-pressure boiler, the superheater includes hanger bracket, if being equipped on the hanger bracket Dry column convection type jet chimney, the both ends of convection type jet chimney described in each column are welded with connector, the connector with The hanger bracket cooperates and is fastenedly connected, and the air outlet side of convection type jet chimney described in several columns is equipped with flue gas distributor.
Preferably, the flue gas distributor includes the exhaust gases passes case that two opposite sides are open, in the exhaust gases passes The equally spaced several adjustable type distribution grids of setting of two open sides of case.
Preferably, the both ends of every piece of adjustable type distribution grid pass through movable sleeve, to be movably connected in the flue gas logical On road case.
Preferably, the movable sleeve of several adjustable type distribution grid bottoms of every side is integrally attached in adjustment axis, and And one end of the adjustment axis is threadedly coupled by thread barrel.
It is positive pentagonal fixed column preferably, exhaust gases passes case top is equipped with cross section, in the fixed column Upper integrally molded circular adapter sleeve, and a circle stepped tooth has been integrally machined on the adapter sleeve, stepped tooth described in every two Between form binding groove.
Preferably, being inwardly provided with the regular pentagon positioning matched with the adapter sleeve in the side of the hanger bracket Slot.
Preferably, being additionally provided with auxiliary positioning mechanism on the top of the hanger bracket.
Preferably, the auxiliary positioning mechanism includes positioning ratchet and rotating cylinder, one end of the positioning ratchet is logical It crosses rotation axis to be movably connected in the rotating cylinder, other end positioning is clamped in the binding groove.
Preferably, the bolt for passing through at least one hexagon between the positioning ratchet and the hanger bracket connects.
Preferably, being also equipped with pipe clamp on the convection type jet chimney described in each column.
The beneficial effects of the present invention are: compared with prior art, of the invention thes improvement is that,
Firstly, the present invention can be by the cigarette in boiler by flue gas distributor in flue gas upstream end setting flue gas distributor Gas is uniformly and block form is distributed, and can also be collected the ash of part in the exhaust gases passes case, prevents, excessive ash adherency On the surface of convection type jet chimney, increase thickness, reduces heat transfer coefficient;
Secondly, the present invention also sets up connector, convection type jet chimney can be fixedly connected with hanger bracket by connector, It realizes, the stability of entire superheater, and can guarantee the flatness of each column convection type jet chimney by the setting of pipe clamp, Guarantee that each column convection type jet chimney does not generate inclination, realizes the accuracy of heat transfer.
Detailed description of the invention
Fig. 1 is schematic front view of the present invention.
Side schematic view when Fig. 2 is not set flue gas distributor of the invention.
Fig. 3 is the schematic diagram of flue gas distributor of the present invention.
Fig. 4 is the partial structure diagram of positioning mechanism of the present invention.
Fig. 5 is the schematic top plan view of hanger bracket of the present invention.
Wherein: 1- hanger bracket, 2- convection type jet chimney, 3- connector, 4- exhaust gases passes case, 5- adjustable type distribution grid, 6- movable sleeve, 7- adjustment axis, 8- thread barrel, 9- fixed column, 10- adapter sleeve, 11- stepped tooth, 12- binding groove, 13- regular pentagon Locating slot, 14- position ratchet, 15- rotating cylinder, 16- bolt, 17- pipe clamp.
Specific embodiment
In order to make those skilled in the art be better understood on technical solution of the present invention, with reference to the accompanying drawing and Embodiment is further described technical solution of the present invention.
The vertical convection superheater of medium-pressure boiler referring to shown in attached drawing 1-5, the superheater includes hanger bracket 1, The hanger bracket 1 is equipped with several columns convection type jet chimney 2, is also equipped with pipe on the convection type jet chimney 2 described in each column The convection type jet chimney 2 of each column can be fixed on same plane by pipe clamp 17, guarantee each column convection type steam pipe by folder 17 The flatness in road 2, the both ends of convection type jet chimney 2 described in each column are welded with connector 3, the connector 3 with it is described Hanger bracket 1 cooperates and is fastenedly connected, and the connector 3 is specially cylindrical structure, is fixedly attached to the convection type steam pipe At the air inlet and air outlet in road 2, smoke distribution is equipped in the air outlet side of the convection type jet chimney 2 described in several columns Device.
In the present invention, the flue gas distributor includes the exhaust gases passes case 4 that two opposite sides are open, logical in the flue gas The equally spaced several adjustable type distribution grids 5 of setting of two open sides of road case 4, the both ends of every piece of adjustable type distribution grid 5 are equal It is movably connected on the exhaust gases passes case 4 by movable sleeve 6, the activity of several 5 bottoms of adjustable type distribution grid of every side Set 6 is integrally attached in adjustment axis 7, and one end of the adjustment axis 7 is threadedly coupled by thread barrel 8;Adjustable type one by one Distribution grid 5 is fixed in adjustment axis 7, and adjustment axis 7 is movable in movable sleeve 6, and thread barrel 8 is connect with the end thread of adjustment axis 7, The gradient of adjustable type distribution grid 5 is adjusted by rotation of the adjustment axis 7 in thread barrel 8, and then adjusts the flue gas of distribution grid Flow velocity, structure is simple, easy to adjust, flexibly, laborsaving.
In the present invention, 4 top of exhaust gases passes case is set is positive pentagonal fixed column 9 there are two cross section, and two Fixed column 9 is located at the both ends position of 4 top end face of exhaust gases passes case, the integrally molded circle in the fixed column 9 Adapter sleeve 10, and a circle stepped tooth 11 has been integrally machined on the adapter sleeve 10,11 isosceles trapezoidal structures of stepped tooth, often Binding groove 12 is formed between two stepped tooths 11, is inwardly provided with and 10 phase of adapter sleeve in the side of the hanger bracket 1 The regular pentagon locating slot 13 of cooperation, the area of fixed column 9 is greater than the area of the regular pentagon locating slot 13, if flue gas point Cloth device is fixedly welded on hanger bracket 1, although the stability of structure can be improved, more troublesome, Er Qiegong is repaired in disassembly Work amount is big, and operation is difficult, and therefore, the present invention is on the installation question for further solving flue gas distributor using detachable peace Assembling structure, convenient disassembly, maintenance are easy.
In the present invention, it is additionally provided with auxiliary positioning mechanism on the top of the hanger bracket 1, two in each fixing sleeve are opposite Side is equipped with the auxiliary positioning mechanism, and the auxiliary positioning mechanism includes positioning ratchet 14 and rotating cylinder 15, the positioning One end of ratchet 14 is movably connected in the rotating cylinder 15 by rotation axis, and other end positioning is clamped on the binding groove 12 It is interior, it is connected between the positioning ratchet 14 and the hanger bracket 1 by the bolt 16 of at least one hexagon;In installation flue gas point When cloth device, directly first fixed column 9 is fastened in the regular pentagon locating slot 13 of hanger bracket 1, is positioned, while the structure is protected The position for having demonstrate,proved fixed column 9 is motionless, further, in order to guarantee the stability of flue gas distributor installation, therefore has good positioning in fixed column 9 Afterwards, positioning ratchet 14 is fastened in binding groove 12 by position of the rotary motion axis in rotating cylinder 15, then the spiral shell for passing through hexagon The insertion of bolt 16 is arranged in the hexagonal hole on hanger bracket 1, and this makes it possible to flue gas distributor fastening is arranged in the suspension On frame 1.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (2)

1. the vertical convection superheater of medium-pressure boiler, it is characterised in that: the superheater includes hanger bracket, in the hanger bracket It is equipped with several columns convection type jet chimney, the both ends of convection type jet chimney described in each column are welded with connector, described Connector cooperates and is fastenedly connected with the hanger bracket, and the air outlet side of convection type jet chimney described in several columns is equipped with flue gas Distributor, the flue gas distributor includes the exhaust gases passes case that two opposite sides are open, in two openings of the exhaust gases passes case The equally spaced several adjustable type distribution grids of setting in side, the both ends of every piece of adjustable type distribution grid pass through movable sleeve activity and connect It connects on the exhaust gases passes case, the movable sleeve of several adjustable type distribution grid bottoms of every side is integrally attached to adjustment axis On, and one end of the adjustment axis is threadedly coupled by thread barrel, and exhaust gases passes case top is equipped with cross section and is positive five The fixed column of side shape, the integrally molded circular adapter sleeve in the fixed column, and one has been integrally machined on the adapter sleeve Stepped tooth is enclosed, binding groove is formed between stepped tooth described in every two, is inwardly provided with and the fastening in the side of the hanger bracket The regular pentagon locating slot matched is covered, is additionally provided with auxiliary positioning mechanism, the auxiliary positioning machine on the top of the hanger bracket Structure includes positioning ratchet and rotating cylinder, and one end of the positioning ratchet is movably connected in the rotating cylinder by rotation axis, Other end positioning is clamped in the binding groove, passes through at least one hexagon between the positioning ratchet and the hanger bracket It is bolted.
2. the vertical convection superheater of medium-pressure boiler according to claim 1, it is characterised in that: the convection current described in each column Pipe clamp is also equipped on formula jet chimney.
CN201610749052.8A 2016-08-30 2016-08-30 The vertical convection superheater of medium-pressure boiler Active CN106196001B (en)

Priority Applications (1)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323241B (en) * 2018-10-25 2020-05-22 单东海 Rear screen type superheater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1402214A2 (en) * 2001-07-02 2004-03-31 Vattenfall Europe Generation AG & Co. KG Steam generator heating surface comprising a multitude of approximately parallel heating tubes through which a cooling agent passes
CN201973706U (en) * 2010-12-17 2011-09-14 四川川锅锅炉有限责任公司 Boot type abrasion-resistant platen superheater
CN203364631U (en) * 2013-05-28 2013-12-25 上海海陆昆仑高科技工程有限公司 Heat-absorbing surface tube bundle structure of pyritic acid making waste heat boiler
CN203940411U (en) * 2014-06-25 2014-11-12 伟明环保设备有限公司 A kind of arrangement of convection superheater
CN206094027U (en) * 2016-08-30 2017-04-12 江苏汇能锅炉有限公司 Medium pressure boiler uses vertical convection superheater

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1402214A2 (en) * 2001-07-02 2004-03-31 Vattenfall Europe Generation AG & Co. KG Steam generator heating surface comprising a multitude of approximately parallel heating tubes through which a cooling agent passes
CN201973706U (en) * 2010-12-17 2011-09-14 四川川锅锅炉有限责任公司 Boot type abrasion-resistant platen superheater
CN203364631U (en) * 2013-05-28 2013-12-25 上海海陆昆仑高科技工程有限公司 Heat-absorbing surface tube bundle structure of pyritic acid making waste heat boiler
CN203940411U (en) * 2014-06-25 2014-11-12 伟明环保设备有限公司 A kind of arrangement of convection superheater
CN206094027U (en) * 2016-08-30 2017-04-12 江苏汇能锅炉有限公司 Medium pressure boiler uses vertical convection superheater

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《汽包锅炉过热器蓄热能的分析与计算》;刘吉臻;《热能动力工程》;20120930;第27卷(第5期);582-585 *

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Effective date of registration: 20191018

Address after: Erling Town, Danyang City, Zhenjiang City, Jiangsu Province

Patentee after: Jiangsu Huineng Heavy Industry Co., Ltd

Address before: 212362, Jiangsu, Zhenjiang province Danyang Er hill town

Patentee before: Jiangsu Huineng Boiler Co., Ltd.