US20160273760A1 - Apparatus for generating reheat steam - Google Patents

Apparatus for generating reheat steam Download PDF

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Publication number
US20160273760A1
US20160273760A1 US15/032,229 US201415032229A US2016273760A1 US 20160273760 A1 US20160273760 A1 US 20160273760A1 US 201415032229 A US201415032229 A US 201415032229A US 2016273760 A1 US2016273760 A1 US 2016273760A1
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US
United States
Prior art keywords
steam
heating pipe
chamber
steam heating
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/032,229
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English (en)
Inventor
Sung Kon Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hankook Technology Inc
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Hankook Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hankook Technology Inc filed Critical Hankook Technology Inc
Assigned to HANKOOK TECHNOLOGY INC. reassignment HANKOOK TECHNOLOGY INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIM, SUNG KON
Publication of US20160273760A1 publication Critical patent/US20160273760A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G7/00—Steam superheaters characterised by location, arrangement, or disposition
    • F22G7/08—Steam superheaters characterised by location, arrangement, or disposition in fire-boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G1/00—Steam superheating characterised by heating method
    • F22G1/02—Steam superheating characterised by heating method with heat supply by hot flue gases from the furnace of the steam boiler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G1/00—Steam superheating characterised by heating method
    • F22G1/16—Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
    • F22G3/001—Steam tube arrangements not dependent of location
    • F22G3/002—Steam tube arrangements not dependent of location with helical steam tubes
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Definitions

  • the present invention relates to an apparatus for generating reheat steam, and more particularly, to an apparatus for supplying and generating steam and mist in the form of reheat steam.
  • Boilers are apparatuses that transfer fuel and combustion heat to water or the like to generate steam having high temperature and pressure, and are used to supply the steam to steam engines such as thermal power plants and vessels, working and heating of various factories and the like.
  • a once-through boiler corresponding to a forced circulation boiler is a boiler of only pipes made by bending water pipes and long pipes and is also referred to as a forced once-through boiler.
  • the once-through boiler is a boiler of a type in which water is supplied at one end of the long pipe, pumped by a pump and is sequentially heated, evaporated and superheated on the way, and superheated steam is sent out of the other end of the pipe.
  • the once-through boiler is suitable for generation of high pressure steam, and in particular, in the case of a supercritical pressure boiler, the once-through boiler is a kind of forced circulation boiler.
  • the superheated steam is a high-temperature colorless transparent gas of 0.89° C. or higher that is generated by heating steam generated by boiling the water, without applying the pressure.
  • the heat transfer using the air is limited to the convection heat transfer
  • the superheated steam has a high thermal efficiency by additionally performing the radiation heat transfer and the heat transfer using a condensation heat in addition to the convection heat transfer, and thus, the superheated steam is very effective in cooking of food.
  • the heat transfer rate of the superheated steam is approximately 10 times faster than the heated air. Particularly, by performing the heat treatment in a low oxygen state, it is possible to suppress the oxidation and combustion of a heated object.
  • a common superheater produces steam of 183.3° C. at the time of the pressurized pressure of 10 kg/cm 3 G, and usually produces steam of 170° C. at the time of 7 to 8 kg/cm 3 G.
  • a method of directly heating a primarily heated steam using a burner a method of indirectly heating a heat accumulation material or the like using a heater, and a method of performing electromagnetic induction heating.
  • Korean Patent Registration No. 10-0597429 discloses an apparatus that generates a low-pressure high-temperature superheated steam. This has an integral construction in which a spiral superheater is mounted inside a combustion chamber of a boiler to perform heating and reheating using a single burner, an amount of evaporation is 30 kg/h, a steam temperature is 541.9° C., and a steam pressure is 0.12 kg/cm 3 , and a cost for producing the steam is low.
  • Korean Registered Patent No. 10-0910594 discloses a technique that enhances a volume of the superheated steam by increasing the temperature of the steam generated in the boiler.
  • An embodiment of the present invention is directed to an apparatus for generating reheat steam that generates a saturated vapor such as steam supplied from the outside or the sprayed and atomized mist by the reheat steam having a constant temperature through heating, and can reuse the waste heat generated in the process of a generation of the reheat steam.
  • an apparatus for generating reheat steam including: a combustion chamber that is formed with a space portion having a specific volume and has a burner installed at a center of an upper end of the inside; a steam chamber which is provided with a space portion having a specific volume around the outer circumference of the combustion chamber, and preliminarily heats the steam or atomized mist of a specific temperature supplied from the outside using the heat transferred from the combustion chamber; a plurality of steam-heating pipes which are wound inside the combustion chamber in the form of a coil to secondarily heat the steam or the mist supplied after being preliminarily heated in the steam chamber into reheat steam at a specific temperature by means of flames generated from the burner; an exhaust chamber which is formed at a specific volume around the outer circumference of the steam chamber and communicates with the combustion chamber to discharge the exhaust gas combusted in the combustion chamber through the gas exhaust pipe; and a heating chamber which is formed at a specific volume around the outer circumference of the exhaust chamber to heat
  • a first steam heating pipe and a second steam heating pipe with an inlet communicating with the steam chamber and an outlet connected to the steam discharge pipe are installed in proximate with an inner wall surface of the combustion chamber, the second steam heating pipe is located on the top of the first steam heating pipe at a fixed distance, the first steam heating pipe and the second the steam heating pipe are alternately formed in a coil shape, a third steam heating pipe and a fourth steam heating pipe with an inlet communicating with the steam chamber and an outlet connected to the steam discharge pipe are installed in proximate with the first steam heating pipe and the second steam heating pipe, the fourth steam heating pipe is located on the top of the third steam heating pipe at a fixed distance, the third steam heating pipe and the fourth the steam heating pipe are alternately formed in a coil shape.
  • a heat insulating material having a specific thickness may be mounted on the outer circumference of the heating chamber for heat insulation.
  • the steam heating pipe may be aligned and installed so that flame injected from the burner does not come into directly contact with the steam heating pipe.
  • the present invention there are advantages as follows. Since it is possible to produce a reheat steam by primarily and secondarily heating the steam and mist supplied from the outside by the installation structure of a plurality of steam heating pipes, it is possible to improve the generation efficiency of the reheated steam. Since it is possible to heat the sucked steam or air using the waste heat of the combusted exhaust gas, the secondary high-temperature steam and air can be produced, it is possible to save the fuel consumed in accordance with the energy utilization of high efficiency, in addition to the improvements in the apparatus for generating the apparatus for generating reheat steam.
  • FIG. 1 is a perspective view illustrating a state of vertically cutting an apparatus for generating reheat steam as an embodiment according to the present invention
  • FIG. 2 is a perspective view illustrating a steam heating pipe in the apparatus for generating reheat steam according to the present invention
  • FIG. 3 is a cross-sectional view illustrating an apparatus for generating reheat steam according to the present invention.
  • FIG. 4 is a cross-sectional view illustrating an operation of generating the high-temperature steam and air, using the generation and waste heat of the reheat steam in the apparatus for generating reheat steam according to the present invention.
  • an apparatus 1 for generating reheat steam according to the present invention generates water supplied in an approximately cylindrical shape into a great capacity of reheat steam.
  • a combustion chamber 10 is formed with a constant volume of a space portion.
  • a burner 11 is installed at the center of the top of the combustion chamber 10 .
  • the burner 11 uses a liquid fuel or a gaseous fuel for generating thermal energy.
  • the burner 11 generates flame from the top to the bottom.
  • a steam discharge pipe 14 is connected to the upper end of the combustion chamber 10 .
  • the center of the lower end of the combustion chamber 10 communicates with the exhaust chamber 15 and is formed so that exhaust gas generated from the flame generated by the burner 11 is discharged.
  • a steam chamber 13 is provided so that a space portion of a constant volume is formed over the outer circumference of the combustion chamber 10 , i.e., the side surface and the lower side surface.
  • Steam supplied from the outside via the inlet pipe 12 i.e., saturated vapor or mist obtained by atomizing the water is introduced into the steam chamber 13 .
  • the steam and mist introduced into the steam chamber 13 is primarily heated by heat transferred from the combustion chamber 10 , and is raised to a certain temperature.
  • a steam heating pipe 20 is placed in a coil shape from the lower portion to the upper portion of the interior of the combustion chamber 10 .
  • the steam heating pipe 20 secondarily heats the steam and mist supplied after being primarily heated from the steam chamber 13 , by means of flame generated by the burner 11 , and generates the reheat steam of constant temperature.
  • a plurality of steam heating pipes 20 is installed in the combustion chamber 10 .
  • the steam heating pipes 20 are arranged inside the combustion chamber 10 in two rows, a first steam heating pipe 21 and a second steam heating pipe 22 are arranged and installed sequence in proximity to the inner wall surface of the combustion chamber 10 , and a third steam heating pipe 23 and a fourth steam heating pipe 24 are arranged and installed in proximity to the first steam heating pipe 21 and the second steam heating pipe 22 .
  • each of the first steam heating pipe 21 and the second steam heating pipe 22 is in communication with the steam chamber 13 through an inlet and is connected to the steam discharge pipe 14 through an outlet.
  • the first steam heating pipe 21 and the second steam heating pipe 22 are installed in proximity to the inner wall surface of the combustion chamber 10 , and the first steam heating pipe 21 and the second steam heating pipe 22 are alternately arranged and installed in a coil shape, while the second steam heating pipe 22 is located on the top of the first steam heating pipe 21 at a predetermined distance.
  • each of the third steam heating pipe 23 and the fourth steam heating pipe 24 is in communication with the steam chamber 13 through an inlet and is connected to the steam discharge pipe 14 through an outlet.
  • the third steam heating pipe 23 and the fourth steam heating pipe 24 are installed in proximity to the first steam heating pipe 21 and the second steam heating pipe 22 , and the third steam heating pipe 23 and the fourth steam heating pipe 24 are alternately arranged and installed in a coil shape, while the fourth steam heating pipe 24 is located on the top of the third steam heating pipe 23 at a predetermined distance.
  • the third steam heating pipe 23 and the fourth steam heating pipe 24 may be arranged and installed so that flame injected from the burner 11 does not come into direct contact therewith.
  • first steam heating pipe 21 and the second steam heating pipe 22 of the steam heating pipe 20 are installed in a coil shape in proximity to the inner wall surface of the combustion chamber 10 , three or more steam heating pipes may be sequentially and alternately installed in a coil shape.
  • third steam heating pipe 23 and the fourth steam heating pipe 24 are installed in a coil shape, three or more steam heating pipes may be sequentially alternately installed in a coil shape.
  • each of two steam heating pipes of the steam heating pipe 20 is installed in a coil shape inside the combustion chamber 10 in two rows, steam heating pipes of three or more rows may be sequentially and alternately installed in a coil shape. Accordingly, the production capacity of the reheat steam may vary depending on the arrangement and number of installations of the steam heating pipes. Furthermore, it is also possible to adjust the temperature of the reheat steam, depending on the arrangement and number of installations of the steam heating pipes.
  • the exhaust chamber 15 is formed on the outer circumference of the steam chamber 13 to have a constant volume.
  • the exhaust chamber 15 is in communication with the combustion chamber 10 to discharge the combustion exhaust gas combusted in the combustion chamber 10 through the gas discharge pipe 16 .
  • the heat of the exhaust gas discharged through the exhaust chamber 15 heats the steam and mist flowing into the steam chamber 13 and is also transmitted to the heating chamber 18 .
  • the heating chamber 18 is formed on the outer circumference of the exhaust chamber 15 at a constant volume.
  • the heating chamber 18 heats the steam or air supplied from the outside by heat from the exhaust chamber 15 , and discharges steam or air heated to a constant temperature through the discharge pipe 19 .
  • the heat insulating material 30 having a constant thickness is coupled to the outer circumference of the apparatus 1 for generating reheat steam for heat insulation, and a housing 31 is coupled to the outside of the heat insulating member 30 .
  • the steam and mist of the steam chamber 13 is converted into the reheat steam after being introduced through the inlets of the first steam heating pipe 21 through the fourth steam heating pipe 24 , and is discharged into the steam discharge pipe 14 via the outlets of each steam heating pipe 20 . Therefore, the apparatus for generating reheat steam of the present invention may generate and discharge a large quantity of reheat steam through first steam heating pipe 21 through the fourth steam heating pipe 24 .
  • the steam and air supplied to the heating chamber 18 through the supply pipe 17 of the apparatus 1 for generating reheat steam is heated to a constant temperature by the heat transferred from the exhaust chamber 15 and then is discharged through the discharge pipe 19 .
  • the combustion chamber 10 can generate the reheat steam in the plurality of steam heating pipes 20 by flame generated in the burner 11 and can primarily heat the steam and mist by heat transferred to the steam chamber 13 , and the exhaust gas generated after being combusted the combustion chamber 10 transfers heat to the steam chamber 13 , while passing through the exhaust chamber 15 , and heat is transferred to the steam chamber 13 even in the heating chamber 18 to heat steam and mist. Accordingly, the steam and mist are primarily heated by heat transferred from the combustion chamber 10 and the exhaust chamber 15 in the steam chamber 13 , and the primarily heated steam and mist are converted into the reheat steam, while passing through the plurality of steam heating pipes 20 .
  • the reheat steam generated from the steam heating pipe 20 is discharged through the steam discharge pipe 14 .
  • the steam and air introduced into the heating chamber 18 through the supply pipe 17 are heated to the constant temperature transmitted from the exhaust chamber 15 and are discharged via the discharge pipe 19 .
  • the gas discharged through the gas discharge pipe 16 can be utilized as a waste heat via the heat exchanger.
  • the apparatus for generating reheat steam according to the present invention can improve the reheat steam generation efficiency and can heat the sucked steam and air, by utilizing the waste heat of the combusted exhaust gas and the secondary high-temperature steam and air can be produced.
  • the apparatus for generating reheat steam can improve the reheat steam generation efficiency and can heat the sucked steam and air, by utilizing the waste heat of the combusted exhaust gas and the secondary high-temperature steam and air can be produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Commercial Cooking Devices (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Drying Of Solid Materials (AREA)
  • Devices For Medical Bathing And Washing (AREA)
US15/032,229 2013-10-30 2014-10-28 Apparatus for generating reheat steam Abandoned US20160273760A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020130129726A KR101420346B1 (ko) 2013-10-30 2013-10-30 재열증기 발생장치
KR10-2013-0129726 2013-10-30
PCT/KR2014/010158 WO2015064995A1 (ko) 2013-10-30 2014-10-28 재열증기 발생장치

Publications (1)

Publication Number Publication Date
US20160273760A1 true US20160273760A1 (en) 2016-09-22

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ID=51742366

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Application Number Title Priority Date Filing Date
US15/032,229 Abandoned US20160273760A1 (en) 2013-10-30 2014-10-28 Apparatus for generating reheat steam

Country Status (8)

Country Link
US (1) US20160273760A1 (ko)
KR (1) KR101420346B1 (ko)
CN (1) CN105637291B (ko)
AU (1) AU2014340858B2 (ko)
CA (1) CA2927105C (ko)
PH (1) PH12016500784A1 (ko)
RU (1) RU2016121002A (ko)
WO (1) WO2015064995A1 (ko)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110947194A (zh) * 2019-12-26 2020-04-03 陈玉平 一种列文蒸发器的加热室
US11054130B2 (en) * 2018-06-11 2021-07-06 Korea Institute Of Energy Research Apparatus for raising the temperature of superheated steam and ultra-high temperature steam generator
JP2023011427A (ja) * 2021-07-12 2023-01-24 株式会社流機エンジニアリング 過熱蒸気生成利用システム

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6886685B2 (ja) * 2017-02-27 2021-06-16 トクデン株式会社 過熱水蒸気生成装置及び当該装置に用いられる導体管の製造方法
CN108714344A (zh) * 2018-06-28 2018-10-30 镇江市富昌塑胶有限公司 用于人造革生产的尾气回收系统
CN113375140A (zh) * 2021-06-18 2021-09-10 广东念智节能科技有限公司 一种超导涡旋换热装置及其蒸汽发生器
KR102466432B1 (ko) * 2021-08-02 2022-11-14 (주)윈텍글로비스 활성탄 재생시스템의 과열증기 보일러 구조

Citations (10)

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US1168631A (en) * 1915-04-08 1916-01-18 Lars Olof Hedblom Hot-water heater and steam-generator.
US1814605A (en) * 1927-10-04 1931-07-14 Siemens Ag Steam generator
US2173115A (en) * 1934-08-21 1939-09-19 Pressure Generators Inc Combustion apparatus
US3596639A (en) * 1969-08-11 1971-08-03 American Radiator & Standard Telescoping sleeve heater
EP0053503A2 (en) * 1980-11-28 1982-06-09 Helot And Company Limited Water heating apparatus
US4771738A (en) * 1987-10-07 1988-09-20 Sundstrand Corporation Dual sleeve boiler mounting apparatus
US5033413A (en) * 1989-05-08 1991-07-23 Hri, Inc. Fluidized bed combustion system and method utilizing capped dual-sided contact units
US5337728A (en) * 1992-04-27 1994-08-16 Noboru Maruyama Liquid heating apparatus
US5888273A (en) * 1996-09-25 1999-03-30 Buxbaum; Robert E. High temperature gas purification system
US20030029441A1 (en) * 2001-06-13 2003-02-13 Dick David R. Hot gas liquid heater

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US1366207A (en) * 1918-01-07 1921-01-18 Ernest A Craig Steam-generator
US2571540A (en) * 1948-04-29 1951-10-16 Vapor Heating Corp Boiler circulating system
US4073267A (en) * 1975-10-03 1978-02-14 General Atomic Company Vapor generator
CN1074028A (zh) * 1992-11-02 1993-07-07 中国人民解放军总后勤部军需装备研究所 燃油低压铝制锅炉
CN2381954Y (zh) * 1999-01-14 2000-06-07 招志明 蒸汽热水两用炉
KR200257645Y1 (ko) 2001-08-28 2001-12-24 대림로얄보일러 주식회사 열매체유를 이용하는 산업용 보일러의 폐열 이용장치
KR100597429B1 (ko) * 2004-07-13 2006-07-05 (주)청명씨에스 관류 보일러
KR200449919Y1 (ko) 2008-07-10 2010-08-20 이경원 에너지 절약형 보일러
JP5739229B2 (ja) 2010-12-10 2015-06-24 大阪瓦斯株式会社 過熱蒸気発生器
KR101216769B1 (ko) 2011-12-15 2012-12-28 한국서부발전 주식회사 대용량의 과열증기를 이용한 석탄 건조 시스템

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1168631A (en) * 1915-04-08 1916-01-18 Lars Olof Hedblom Hot-water heater and steam-generator.
US1814605A (en) * 1927-10-04 1931-07-14 Siemens Ag Steam generator
US2173115A (en) * 1934-08-21 1939-09-19 Pressure Generators Inc Combustion apparatus
US3596639A (en) * 1969-08-11 1971-08-03 American Radiator & Standard Telescoping sleeve heater
EP0053503A2 (en) * 1980-11-28 1982-06-09 Helot And Company Limited Water heating apparatus
US4771738A (en) * 1987-10-07 1988-09-20 Sundstrand Corporation Dual sleeve boiler mounting apparatus
US5033413A (en) * 1989-05-08 1991-07-23 Hri, Inc. Fluidized bed combustion system and method utilizing capped dual-sided contact units
US5337728A (en) * 1992-04-27 1994-08-16 Noboru Maruyama Liquid heating apparatus
US5888273A (en) * 1996-09-25 1999-03-30 Buxbaum; Robert E. High temperature gas purification system
US20030029441A1 (en) * 2001-06-13 2003-02-13 Dick David R. Hot gas liquid heater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11054130B2 (en) * 2018-06-11 2021-07-06 Korea Institute Of Energy Research Apparatus for raising the temperature of superheated steam and ultra-high temperature steam generator
CN110947194A (zh) * 2019-12-26 2020-04-03 陈玉平 一种列文蒸发器的加热室
JP2023011427A (ja) * 2021-07-12 2023-01-24 株式会社流機エンジニアリング 過熱蒸気生成利用システム
JP7228925B2 (ja) 2021-07-12 2023-02-27 株式会社流機エンジニアリング 過熱蒸気生成利用システム

Also Published As

Publication number Publication date
CA2927105A1 (en) 2015-05-07
CA2927105C (en) 2017-09-05
AU2014340858B2 (en) 2016-11-10
PH12016500784A1 (en) 2016-06-20
WO2015064995A1 (ko) 2015-05-07
AU2014340858A1 (en) 2016-05-05
RU2016121002A (ru) 2017-12-05
CN105637291B (zh) 2017-05-17
KR101420346B1 (ko) 2014-07-16
CN105637291A (zh) 2016-06-01

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AS Assignment

Owner name: HANKOOK TECHNOLOGY INC., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KIM, SUNG KON;REEL/FRAME:038525/0894

Effective date: 20160321

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION