WO2015064995A1 - Apparatus for generating reheat steam - Google Patents

Apparatus for generating reheat steam Download PDF

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Publication number
WO2015064995A1
WO2015064995A1 PCT/KR2014/010158 KR2014010158W WO2015064995A1 WO 2015064995 A1 WO2015064995 A1 WO 2015064995A1 KR 2014010158 W KR2014010158 W KR 2014010158W WO 2015064995 A1 WO2015064995 A1 WO 2015064995A1
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WO
WIPO (PCT)
Prior art keywords
steam
chamber
steam heating
combustion chamber
heating pipe
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PCT/KR2014/010158
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French (fr)
Korean (ko)
Inventor
김성곤
Original Assignee
주식회사 한국테크놀로지
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Application filed by 주식회사 한국테크놀로지 filed Critical 주식회사 한국테크놀로지
Priority to US15/032,229 priority Critical patent/US20160273760A1/en
Priority to AU2014340858A priority patent/AU2014340858B2/en
Priority to RU2016121002A priority patent/RU2016121002A/en
Priority to CN201480056415.9A priority patent/CN105637291B/en
Priority to CA2927105A priority patent/CA2927105C/en
Publication of WO2015064995A1 publication Critical patent/WO2015064995A1/en
Priority to PH12016500784A priority patent/PH12016500784A1/en

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    • 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
    • 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
    • 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 generating and supplying steam or mist as reheat steam.
  • a boiler is a device that generates fuel with high temperature and pressure by transmitting fuel and heat of combustion to water and the like, and is used to supply steam to steam engines such as thermal power plants and ships, and for work or heating in various factories.
  • boilers are divided into several types in structure.
  • Once-through Boiler which is a forced circulation boiler, is a boiler made by bending a water pipe and a long pipe, also called a forced-flow boiler. It is a type of boiler that feeds water from one end, pumps it, and heats, evaporates, and overheats it in turn, and sends superheated steam from the other end of the pipe.
  • Perfusion boilers are suitable for the generation of high pressure steam, and especially in the case of supercritical pressure boilers.
  • superheated steam is a hot, colorless, transparent gas of 100 ° C. or higher produced by heating the steam generated by boiling water without applying pressure.
  • Heat transfer by air is limited to convective heat, but superheated steam is highly effective in cooking food due to high heat efficiency by radiating heat and condensation heat.
  • the heat transfer rate of superheated steam is about 10 times faster than that of heating air.
  • a general superheater produces a steam of 183.3 ° C. under a pressurized pressure of 10 kg / cm 3 G, and typically produces a steam of 170 ° C. at 7-8 kg / cm 3 G.
  • the present invention provides a combustion chamber in which a predetermined volume of space is formed and a burner is installed at an inner top center thereof;
  • a steam chamber in which a predetermined volume of space is formed at an outer circumference of the combustion chamber and primarily heats steam or atomized mist of a predetermined temperature supplied from the outside by heat transferred from the combustion chamber;
  • a plurality of steam heating tubes wound around the inside of the combustion chamber in a coil shape and secondly heating steam or mist supplied after being heated in a steam chamber to a reheat steam having a predetermined temperature by a flame generated from a burner;
  • An exhaust chamber formed in a predetermined volume on the outer circumference of the steam chamber and communicating with the combustion chamber to discharge the exhaust gas combusted in the combustion chamber through a gas discharge pipe;
  • a heating chamber formed in a predetermined volume on an outer circumference of the exhaust chamber and heating steam or air supplied from the outside with heat transferred from the exhaust chamber, wherein the steam heating pipe has an inlet.
  • the first steam heating pipe and the second steam heating pipe connected to the steam chamber and connected to the steam discharge pipe are installed close to the inner wall of the combustion chamber, and the second steam heating pipe is positioned at a certain distance above the first steam heating pipe.
  • the first steam heating pipe and the second steam heating pipe are alternately installed in a coil shape, and the third steam heating pipe and the fourth steam heating pipe connected to the steam chamber and the outlet are connected to the steam discharge pipe are the first steam heating pipe and the first steam heating pipe. 2
  • the fourth steam heating pipe is positioned at a certain distance on the upper part of the third steam heating pipe so that the third steam heating pipe and the fourth steam heating pipe can be alternately installed in a coil shape. All.
  • a heat insulating material of a predetermined thickness may be mounted on the outer circumference of the heating chamber.
  • the steam heating pipe can be arranged so that the flame injected from the burner does not directly contact.
  • reheat steam can be generated by heating steam or mist supplied from the outside in a primary and secondary manner by the installation structure of a plurality of steam heating tubes, thereby improving the efficiency of reheat steam generation and improving combustion efficiency.
  • waste heat to heat inhaled steam or air, it can generate secondary high temperature steam or air, improving the function of the reheat steam generator and reducing the fuel consumed by high efficiency energy utilization. There is this.
  • FIG. 1 is a perspective view of a state in which the reheat steam generator is vertically cut in an embodiment according to the present invention.
  • FIG. 2 is a perspective view showing a steam heating tube in the reheat steam generator according to the present invention.
  • FIG 3 is a cross-sectional view showing a reheat steam generator according to the present invention.
  • Figure 4 is a cross-sectional view showing the operation of generating high-temperature steam or air using the generation of reheat steam and waste heat in the reheat steam generator according to the present invention.
  • the reheat steam generator 1 is to generate a large amount of reheat steam to the water supplied in a substantially cylindrical.
  • the combustion chamber 10 is provided with a space portion of a constant volume.
  • the burner 11 is installed at the upper center of the combustion chamber 10.
  • the burner 11 uses a liquid fuel or a gaseous fuel that generates thermal energy. Burner 11 allows the flame to be produced from top to bottom.
  • the steam discharge pipe 14 is connected to the top of the combustion chamber (10).
  • the lower center of the combustion chamber 10 is formed to communicate with the exhaust chamber 15 so that the exhaust gas generated from the flame generated by the burner 11 is discharged.
  • the steam chamber 13 is formed of a predetermined volume of space over the outer periphery of the combustion chamber 10, that is, the side surface and the lower surface.
  • steam supplied from the outside through the inlet pipe 12, that is, mist that atomizes saturated steam or water is introduced.
  • Steam or mist introduced into the steam chamber 13 is primarily heated by the heat transferred from the combustion chamber 10 to be raised to a predetermined temperature.
  • the steam heating tube 20 is installed in a coil shape from the bottom to the top of the combustion chamber 10.
  • the steam heating tube 20 is to heat the steam or mist supplied after the primary heating in the steam chamber 13 with the flame generated from the burner 11 to generate reheat steam at a predetermined temperature.
  • the steam heating pipe 20 is provided in plurality in the combustion chamber 10.
  • the steam heating tube 20 is arranged in two rows inside the combustion chamber 10, and the first steam heating tube 21 and the second steam heating tube 22 are arranged close to the inner wall of the combustion chamber 10.
  • the third steam heating pipe 23 and the fourth steam heating pipe 24 are arranged in close proximity to the first steam heating pipe 21 and the second steam heating pipe 22.
  • first steam heating pipe 21 and the second steam heating pipe 22 are connected to the steam chamber 13 and the outlet is connected to the steam discharge pipe 14, respectively.
  • the first steam heating tube 21 and the second steam heating tube 22 are installed in close proximity to the inner wall of the combustion chamber 10, but the second steam heating tube 22 is fixed on the first steam heating tube 21. While positioned at a distance, the first steam heating pipe 21 and the second steam heating pipe 22 are alternately installed in a coil shape.
  • each of the third steam heating pipe 23 and the fourth steam heating pipe 24 has an inlet connected to the steam chamber 13 and an outlet connected to the steam discharge pipe 14.
  • the third steam heating tube 23 and the fourth steam heating tube 24 are installed in close proximity to the first steam heating tube 21 and the second steam heating tube 22, and the upper portion of the third steam heating tube 23 is provided. While the fourth steam heating tube 24 is positioned at a predetermined distance, the third steam heating tube 23 and the fourth steam heating tube 24 are alternately installed in a coil shape.
  • the third steam heating pipe 23 and the fourth steam heating pipe 24 may be arranged so that the flame sprayed from the burner 11 does not directly contact.
  • the steam heating pipe 20 is provided with a coil shape of the first steam heating pipe 21 and the second steam heating pipe 22 close to the inner wall of the combustion chamber 10, but three or more steam heating pipes are alternately sequentially. It may be installed in a coil shape.
  • the 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 installed in a coil shape.
  • the steam heating pipe 20 is installed in the combustion chamber 10 in two rows, respectively, two steam heating pipes in a coil shape, three or more rows of steam heating pipes may be alternately installed in a coil shape. Therefore, the production capacity of reheat steam may vary according to the arrangement and the number of installation of the steam heating tube. In addition, the temperature of the reheat steam may be adjusted according to the arrangement and the number of installation of the steam heating tube.
  • the exhaust chamber 15 is formed in a constant volume on the outer circumference of the steam chamber 13.
  • the exhaust chamber 15 communicates with the combustion chamber 10 to discharge the 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 steam or mist introduced into the steam chamber 13 and is also transmitted to the heating chamber 18.
  • the heating chamber 18 is formed in a constant volume on the outer periphery of the exhaust chamber 15.
  • the heating chamber 18 heats steam or air supplied from the outside with the heat transferred from the exhaust chamber 15, and discharges the steam or air warmed to a predetermined temperature through the discharge pipe 19.
  • the reheat steam generator 1 is a heat insulating material 30 of a predetermined thickness is coupled to the outer periphery for heat insulation, the housing 31 is coupled to the outside of the heat insulating material (30).
  • the reheat steam generator of the present invention can generate and discharge a large amount of reheat steam through the first steam heating tube 21 to the fourth steam heating tube 24.
  • reheat steam is generated in the plurality of steam heating tubes 20 by the flame generated from the burner 11, and the steam or mist is primarily heated by the heat transferred to the steam chamber 13.
  • the exhaust gas generated after the combustion in the combustion chamber 10 is transferred to the steam chamber 13 while passing through the exhaust chamber 15, and also from the heating chamber 18 to the steam chamber 13. Heat is transferred to allow steam or mist to heat up. Therefore, steam or mist is primarily heated by heat transferred from the combustion chamber 10 and the exhaust chamber 15 from the steam chamber 13, and the steam or mist heated first is reheated while passing through the plurality of steam heating tubes 20. Turns into steam. Reheat steam generated in the steam heating pipe 20 is discharged through the steam discharge pipe (14).
  • the gas discharged through the gas discharge pipe 16 may be used as waste heat through heat exchange.
  • the reheat steam generator according to the present invention improves the efficiency of reheat steam generation and can heat steam or air sucked by using the waste heat of the burned exhaust gas to generate secondary high temperature steam or air. In addition to improving the function of the generator, it is possible to reduce the fuel consumed by the use of high-efficiency energy, there is industrial potential.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Commercial Cooking Devices (AREA)
  • Drying Of Solid Materials (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)

Abstract

The present invention relates to an apparatus for generating and supplying steam or mist in the form of reheat steam, and provides the apparatus for generating reheat steam comprising: a combustion chamber provided with a space portion having a specific volume and a burner which is installed at the center of the upper end of the inside of the combustion chamber; a steam chamber, which is provided with a space portion having a specific volume around the outer circumference of the combustion chamber, for heating for the first time using heat transferred from the combustion chamber, steam or dissipated mist at a specific temperature that is supplied from the outside; a plurality of steam-heating pipes, which are wound in the form of a coil inside the combustion chamber, for heating for the second time by means of flames generated from the burner, the steam or the mist supplied after being heated for the first time in the steam chamber, into reheat steam at a specific temperature; an exhaust chamber having a specific volume, which is formed around the outer circumference of the steam chamber and communicates with the combustion chamber, for discharging exhaust gas combusted in the combustion chamber through a gas exhaust pipe; and a heating chamber having a specific volume, which is formed around the outer circumference of the exhaust chamber, for heating steam or air supplied from the outside using heat transferred from the exhaust chamber.

Description

재열증기 발생장치Reheat steam generator
본 발명은 재열증기를 발생하는 장치에 관한 것으로, 더욱 상세하게는 스팀이나 연무를 재열증기로 생성하여 공급하는 장치에 관한 것이다.The present invention relates to an apparatus for generating reheat steam, and more particularly, to an apparatus for generating and supplying steam or mist as reheat steam.
보일러(Boiler)는, 연료와 연소열을 물 등에 전하여 온도와 압력이 높은 증기를 발생시키는 장치로서, 화력발전소와 선박 등의 증기기관, 각종 공장의 작업용이나 난방용 등에 증기를 공급하는 데 사용한다.A boiler is a device that generates fuel with high temperature and pressure by transmitting fuel and heat of combustion to water and the like, and is used to supply steam to steam engines such as thermal power plants and ships, and for work or heating in various factories.
더욱이 보일러는 구조상 여러 종류로 나누어지고, 그 중에서 강제순환식 보일러에 해당하는 관류보일러(Once-through Boiler)는 수관 및 긴 관 등을 휘어서 만든 관만의 보일러로서, 강제 관류 보일러라고도 하는데, 긴 관의 한쪽 끝에서 급수하고 펌프로 압송하여 도중에서 차례로 가열, 증발 및 과열되어 관의 다른 한쪽 끝에서 과열증기가 송출되는 형식의 보일러이다. 관류보일러는 고압증기의 발생에 적합하고, 특히 초임계압 보일러인 경우에는 강제순환식 보일러의 일종이다.Moreover, boilers are divided into several types in structure. Among them, Once-through Boiler, which is a forced circulation boiler, is a boiler made by bending a water pipe and a long pipe, also called a forced-flow boiler. It is a type of boiler that feeds water from one end, pumps it, and heats, evaporates, and overheats it in turn, and sends superheated steam from the other end of the pipe. Perfusion boilers are suitable for the generation of high pressure steam, and especially in the case of supercritical pressure boilers.
일반적으로 압력을 일정하게 해 두고 액체를 가열하면 온도가 올라가고, 일정온도에 달하면 증발하기 시작한다. 이 경우 다시 가열하더라도 전부가 증발할 때까지는 온도가 변하지 않고 액체와 증기가 공존한다. 이것을 습윤 포화증기라 하고, 전부 증기가 되어 버린 것을 건조포화증기라 한다. 건조포화증기를 다시 가열하면 증기의 온도는 상승하는데, 이것을 과열증기(Superheated Vapor)라 한다. 이 증기를 이용하면 보일러나 엔진 또는 터빈의 효율을 향상시킬 수 있다.In general, when the pressure is kept constant and the liquid is heated, the temperature rises, and when it reaches a certain temperature, it starts to evaporate. In this case, even if it is heated again, the temperature does not change until all evaporates and liquid and vapor coexist. This is called wet saturated steam, and it is called dry saturated steam that has become all steam. Heating the dry saturated steam again raises the temperature of the steam, which is called Superheated Vapor. Using this steam can improve the efficiency of boilers, engines or turbines.
더욱이 과열증기는 물을 비등시켜 발생한 증기에 압력을 가하지 않고 가열하여 생성된 100℃ 이상의 고온 무색의 투명한 기체이다. 공기에 의한 전열은 대류전열에 한하지만, 과열증기는 대류전열에 추가로 방사전열과 응축전열에 의한 전열을 함으로써 열효율이 높아 음식의 조리에 매우 효과적이다. 그리고 통상 대류전열의 경우에는 과열증기의 전열속도가 가열공기에 비하여 약 10배 정도 빠르다. 특히 저 산소상태에서 열처리함으로써 피 가열물의 산화 및 연소를 억제할 수 있다. 그리고 일반적인 과열기(Superheater)는 가압된 압력 10kg/㎤G 시 183.3℃의 증기를 생산하고, 통상적으로는 7~8kg/㎤G 시 170℃의 증기를 생산하게 된다. 한편, 저압의 과열증기를 생산하기 위해서는 1차 가열된 증기를 버너로 직접 가열하거나 히터를 이용하여 축온재 등을 간접 가열하는 방법과 전자유도 가열하는 방식이 있다.Furthermore, superheated steam is a hot, colorless, transparent gas of 100 ° C. or higher produced by heating the steam generated by boiling water without applying pressure. Heat transfer by air is limited to convective heat, but superheated steam is highly effective in cooking food due to high heat efficiency by radiating heat and condensation heat. In general, in the case of convective heat transfer, the heat transfer rate of superheated steam is about 10 times faster than that of heating air. In particular, by heat treatment in a low oxygen state, oxidation and combustion of the heated object can be suppressed. In addition, a general superheater produces a steam of 183.3 ° C. under a pressurized pressure of 10 kg / cm 3 G, and typically produces a steam of 170 ° C. at 7-8 kg / cm 3 G. On the other hand, in order to produce low-pressure superheated steam, there is a method of directly heating the first heated steam with a burner or indirectly heating the heat storage material using a heater and an electromagnetic induction heating method.
과열증기를 발생시키는 증기발생장치로서, 대한민국 등록특허공보 제10-0597429호(2006. 7. 5. 공개)에는 저압의 고온 과열증기를 발생하는 장치가 공지되어 있다. 이는 보일러의 연소실 내에 나선형 과열기를 장착하여 1개의 버너로 가열 및 재가열하는 일체형 구조이고, 증발량이 30kg/h 로서 증기온도는 541.9℃ 이며, 증기압력은 0.12kg/㎤ 로 증기를 생산하는 비용이 적다. 대한민국 등록특허공보 제10-0910594호(2009. 8. 3. 공개)는 보일러에서 발생되는 증기의 온도를 상승시켜 과열증기의 용량을 증대시키는 것이 개시되어 있다.As a steam generator for generating superheated steam, Korean Patent Publication No. 10-0597429 (published on July 5, 2006) discloses a device for generating a high pressure superheated steam of low pressure. It is a one-piece structure that heats and reheats with a single burner by installing a spiral superheater in the combustion chamber of the boiler. The evaporation rate is 30kg / h, the steam temperature is 541.9 ℃, and the steam pressure is 0.12kg / cm3. . Republic of Korea Patent Publication No. 10-0910594 (published Aug. 3, 2009) discloses increasing the temperature of the steam generated in the boiler to increase the capacity of the superheated steam.
본 발명은 외부에서 공급된 스팀과 같은 포화증기나 분무되어 무화된 연무를 가열하여 일정 온도의 재열증기로 발생시킴과 더불어 재열증기의 발생 과정에서 생성되는 폐열을 재활용할 수 있도록 하기 위한 것이 목적이다.It is an object of the present invention to generate a reheat steam at a constant temperature by heating saturated atomization such as steam supplied from outside or sprayed atomized mist, and to recycle waste heat generated in the process of generating reheat steam. .
본 발명은 상기 목적을 달성하기 위하여, 일정 체적의 공간부가 형성되고 내측 상단 중심에 버너가 설치된 연소실; 상기 연소실 외주연에 일정 체적의 공간부가 형성되고 연소실에서 전달된 열로 외부에서 공급된 일정 온도의 스팀이나 무화된 연무를 1차 가열하는 증기실; 상기 연소실 내부에 코일 형상으로 감겨 증기실에서 1차 가열된 후 공급된 스팀이나 연무를 버너에서 발생된 화염에 의해 일정 온도의 재열증기로 2차 가열시키는 복수의 증기히팅관; 상기 증기실 외주연에 일정 체적으로 형성되고 연소실과 연통되어 연소실에서 연소된 배기가스를 가스배출관을 통해 배출시키는 배기실; 및 상기 배기실 외주연에 일정 체적으로 형성되고 배기실에서 전달된 열로 외부에서 공급된 스팀이나 에어를 가열하는 가열실;을 포함하는 재열증기 발생장치를 제공한 것인데, 상기 증기히팅관은 입구가 증기실과 연통되고 출구가 증기배출관에 연결된 제1증기히팅관과 제2증기히팅관이 연소실 내측 벽면에 근접하여 설치되되, 제1증기히팅관 상부에 제2증기히팅관이 일정 거리를 두고 위치되면서 제1증기히팅관과 제2증기히팅관이 번갈아 코일 형상으로 설치되고, 입구가 증기실과 연통되고 출구가 증기배출관에 연결된 제3증기히팅관과 제4증기히팅관이 제1증기히팅관과 제2증기히팅관에 근접하여 설치되되, 제3증기히팅관 상부에 제4증기히팅관이 일정 거리를 두고 위치되면서 제3증기히팅관과 제4증기히팅관이 번갈아 코일 형상으로 설치할 수 있다.In order to achieve the above object, the present invention provides a combustion chamber in which a predetermined volume of space is formed and a burner is installed at an inner top center thereof; A steam chamber in which a predetermined volume of space is formed at an outer circumference of the combustion chamber and primarily heats steam or atomized mist of a predetermined temperature supplied from the outside by heat transferred from the combustion chamber; A plurality of steam heating tubes wound around the inside of the combustion chamber in a coil shape and secondly heating steam or mist supplied after being heated in a steam chamber to a reheat steam having a predetermined temperature by a flame generated from a burner; An exhaust chamber formed in a predetermined volume on the outer circumference of the steam chamber and communicating with the combustion chamber to discharge the exhaust gas combusted in the combustion chamber through a gas discharge pipe; And a heating chamber formed in a predetermined volume on an outer circumference of the exhaust chamber and heating steam or air supplied from the outside with heat transferred from the exhaust chamber, wherein the steam heating pipe has an inlet. The first steam heating pipe and the second steam heating pipe connected to the steam chamber and connected to the steam discharge pipe are installed close to the inner wall of the combustion chamber, and the second steam heating pipe is positioned at a certain distance above the first steam heating pipe. The first steam heating pipe and the second steam heating pipe are alternately installed in a coil shape, and the third steam heating pipe and the fourth steam heating pipe connected to the steam chamber and the outlet are connected to the steam discharge pipe are the first steam heating pipe and the first steam heating pipe. 2 It is installed close to the steam heating pipe, the fourth steam heating pipe is positioned at a certain distance on the upper part of the third steam heating pipe so that the third steam heating pipe and the fourth steam heating pipe can be alternately installed in a coil shape. All.
또한, 본 발명에서, 상기 가열실 외주연에 단열을 위하여 일정 두께의 단열재를 장착할 수 있다.In addition, in the present invention, a heat insulating material of a predetermined thickness may be mounted on the outer circumference of the heating chamber.
그리고, 본 발명에서, 상기 증기히팅관을 버너로부터 분사된 화염이 직접 접촉되지 않도록 배열 설치할 수 있다.And, in the present invention, the steam heating pipe can be arranged so that the flame injected from the burner does not directly contact.
본 발명에 따르면, 복수의 증기히팅관의 설치 구조에 의하여 외부에서 공급된 스팀이나 연무를 1차 및 2차로 가열함으로써 재열증기를 생성할 수 있어 재열증기 발생 효율을 향상시키고, 연소된 배기가스의 폐열을 이용하여 흡입된 스팀이나 에어를 가열할 수 있어 부차적인 고온의 증기나 에어를 생성할 수 있어 재열증기 발생장치의 기능 향상과 더불어 고효율의 에너지 활용에 따라 소모되는 연료를 절감할 수 있는 이점이 있다.According to the present invention, reheat steam can be generated by heating steam or mist supplied from the outside in a primary and secondary manner by the installation structure of a plurality of steam heating tubes, thereby improving the efficiency of reheat steam generation and improving combustion efficiency. By using waste heat to heat inhaled steam or air, it can generate secondary high temperature steam or air, improving the function of the reheat steam generator and reducing the fuel consumed by high efficiency energy utilization. There is this.
도 1은 본 발명에 따른 실시 예로, 재열증기 발생장치를 수직으로 절개한 상태의 사시도이다.1 is a perspective view of a state in which the reheat steam generator is vertically cut in an embodiment according to the present invention.
도 2는 본 발명에 따른 재열증기 발생장치에서 증기히팅관을 나타낸 사시도이다.2 is a perspective view showing a steam heating tube in the reheat steam generator according to the present invention.
도 3은 본 발명에 따른 재열증기 발생장치를 나타낸 단면도이다.3 is a cross-sectional view showing a reheat steam generator according to the present invention.
도 4는 본 발명에 따른 재열증기 발생장치에서 재열증기의 발생과 폐열을 이용하여 고온의 스팀이나 공기를 발생시키는 작동을 나타낸 단면도이다.Figure 4 is a cross-sectional view showing the operation of generating high-temperature steam or air using the generation of reheat steam and waste heat in the reheat steam generator according to the present invention.
이하 본 발명에 따른 재열증기 발생장치에 관하여 첨부된 도면을 참조하여 상세하게 설명하면 다음과 같다.Hereinafter, the reheat steam generator according to the present invention will be described in detail with reference to the accompanying drawings.
도 1에서, 본 발명에 의한 재열증기 발생장치(1)는 대략 원통형으로 공급된 물을 대용량의 재열증기로 생성하는 것이다.In Figure 1, the reheat steam generator 1 according to the present invention is to generate a large amount of reheat steam to the water supplied in a substantially cylindrical.
연소실(10)은 일정 체적의 공간부가 형성된다. 연소실(10) 상부 중심에는 버너(11)가 설치된다. 버너(11)는 열에너지를 발생하는 액체 연료나 기체 연료가 사용된다. 버너(11)는 상부에서 하부로 화염이 생성되도록 한다. 연소실(10) 상단에 증기배출관(14)이 연결된다. 연소실(10) 하단 중심은 배기실(15)과 연통되어 버너(11)에서 발생된 화염으로부터 발생되는 배기가스가 배출되도록 형성되어 있다.The combustion chamber 10 is provided with a space portion of a constant volume. The burner 11 is installed at the upper center of the combustion chamber 10. The burner 11 uses a liquid fuel or a gaseous fuel that generates thermal energy. Burner 11 allows the flame to be produced from top to bottom. The steam discharge pipe 14 is connected to the top of the combustion chamber (10). The lower center of the combustion chamber 10 is formed to communicate with the exhaust chamber 15 so that the exhaust gas generated from the flame generated by the burner 11 is discharged.
증기실(13)은 연소실(10) 외주연, 즉 측면과 하측면에 걸쳐 일정 체적의 공간부가 형성된 것이다. 증기실(13)은 유입관(12)을 통해 외부에서 공급된 스팀, 즉 포화증기나 물을 무화시킨 연무가 유입된다. 증기실(13)로 유입된 스팀이나 연무는 연소실(10)로부터 전달된 열에 의하여 1차적으로 가열되어 일정 온도까지 상승된다.The steam chamber 13 is formed of a predetermined volume of space over the outer periphery of the combustion chamber 10, that is, the side surface and the lower surface. In the steam chamber 13, steam supplied from the outside through the inlet pipe 12, that is, mist that atomizes saturated steam or water is introduced. Steam or mist introduced into the steam chamber 13 is primarily heated by the heat transferred from the combustion chamber 10 to be raised to a predetermined temperature.
증기히팅관(20)은 연소실(10) 내부의 하부에서 상부까지 코일 형상으로 설치된다. 증기히팅관(20)은 증기실(13)에서 1차 가열된 후 공급된 스팀이나 연무를 버너(11)에서 발생된 화염으로 2차적으로 가열시켜 일정 온도의 재열증기를 발생시키는 것이다. 증기히팅관(20)은 연소실(10) 내에 복수로 설치된다.The steam heating tube 20 is installed in a coil shape from the bottom to the top of the combustion chamber 10. The steam heating tube 20 is to heat the steam or mist supplied after the primary heating in the steam chamber 13 with the flame generated from the burner 11 to generate reheat steam at a predetermined temperature. The steam heating pipe 20 is provided in plurality in the combustion chamber 10.
도 2에서, 증기히팅관(20)은 연소실(10) 내부에 2열로 배열되는데, 연소실(10) 내측 벽면에 근접하여 제1증기히팅관(21)과 제2증기히팅관(22)이 배열 설치되고, 제1증기히팅관(21)과 제2증기히팅관(22)과 근접하여 제3증기히팅관(23)과 제4증기히팅관(24)이 배열 설치된다.In FIG. 2, the steam heating tube 20 is arranged in two rows inside the combustion chamber 10, and the first steam heating tube 21 and the second steam heating tube 22 are arranged close to the inner wall of the combustion chamber 10. The third steam heating pipe 23 and the fourth steam heating pipe 24 are arranged in close proximity to the first steam heating pipe 21 and the second steam heating pipe 22.
도 3에서, 제1증기히팅관(21)과 제2증기히팅관(22)은 각각 입구가 증기실(13)과 연통되고 출구가 증기배출관(14)에 연결된다. 제1증기히팅관(21)과 제2증기히팅관(22)은 연소실(10) 내측 벽면에 근접하여 설치되되, 제1증기히팅관(21) 상부에 제2증기히팅관(22)이 일정 거리를 두고 위치되면서 제1증기히팅관(21)과 제2증기히팅관(22)이 번갈아 코일 형상으로 배열 설치된다.In FIG. 3, the first steam heating pipe 21 and the second steam heating pipe 22 are connected to the steam chamber 13 and the outlet is connected to the steam discharge pipe 14, respectively. The first steam heating tube 21 and the second steam heating tube 22 are installed in close proximity to the inner wall of the combustion chamber 10, but the second steam heating tube 22 is fixed on the first steam heating tube 21. While positioned at a distance, the first steam heating pipe 21 and the second steam heating pipe 22 are alternately installed in a coil shape.
또한, 제3증기히팅관(23)과 제4증기히팅관(24)은 각각 입구가 증기실(13)과 연통되고 출구가 증기배출관(14)에 연결된다. 제3증기히팅관(23)과 제4증기히팅관(24)은 제1증기히팅관(21)과 제2증기히팅관(22)에 근접하여 설치되되, 제3증기히팅관(23) 상부에 제4증기히팅관(24)이 일정 거리를 두고 위치되면서 제3증기히팅관(23)과 제4증기히팅관(24)이 번갈아 코일 형상으로 배열 설치된다. 제3증기히팅관(23)과 제4증기히팅관(24)은 버너(11)로부터 분사된 화염이 직접 접촉되지 않도록 배열 설치하는 것이 좋다.In addition, each of the third steam heating pipe 23 and the fourth steam heating pipe 24 has an inlet connected to the steam chamber 13 and an outlet connected to the steam discharge pipe 14. The third steam heating tube 23 and the fourth steam heating tube 24 are installed in close proximity to the first steam heating tube 21 and the second steam heating tube 22, and the upper portion of the third steam heating tube 23 is provided. While the fourth steam heating tube 24 is positioned at a predetermined distance, the third steam heating tube 23 and the fourth steam heating tube 24 are alternately installed in a coil shape. The third steam heating pipe 23 and the fourth steam heating pipe 24 may be arranged so that the flame sprayed from the burner 11 does not directly contact.
증기히팅관(20)은 연소실(10) 내측 벽면에 근접하여 제1증기히팅관(21)과 제2증기히팅관(22)이 코일 형상으로 설치되지만, 3개 이상의 증기히팅관이 순차적으로 번갈아 코일 형상으로 설치될 수 있다. 또한, 제3증기히팅관(23)과 제4증기히팅관(24)이 코일 형상으로 설치되지만, 3개 이상의 증기히팅관이 순차적으로 번갈아 코일 형상으로 설치될 수 있다. 또한, 증기히팅관(20)은 연소실(10) 내에 2열로 각각 2개의 증기히팅관이 코일 형상으로 설치되지만, 3열 이상의 증기히팅관이 순차적으로 번갈아 코일 형상으로 설치될 수 있다. 따라서 증기히팅관의 배열 및 설치 개수에 따라 재열증기의 생산용량이 달라질 수 있다. 또한, 증기히팅관의 배열 및 설치 개수에 따라 재열증기의 온도를 조절할 수도 있을 것이다.The steam heating pipe 20 is provided with a coil shape of the first steam heating pipe 21 and the second steam heating pipe 22 close to the inner wall of the combustion chamber 10, but three or more steam heating pipes are alternately sequentially. It may be installed in a coil shape. In addition, although the 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 installed in a coil shape. In addition, the steam heating pipe 20 is installed in the combustion chamber 10 in two rows, respectively, two steam heating pipes in a coil shape, three or more rows of steam heating pipes may be alternately installed in a coil shape. Therefore, the production capacity of reheat steam may vary according to the arrangement and the number of installation of the steam heating tube. In addition, the temperature of the reheat steam may be adjusted according to the arrangement and the number of installation of the steam heating tube.
배기실(15)은 증기실(13) 외주연에 일정 체적으로 형성된다. 배기실(15)은 연소실(10)과 연통되어 연소실(10)에서 연소된 배기가스를 가스배출관(16)을 통해 배출시키는 것이다. 배기실(15)을 통해 배출되는 배기가스의 열이 증기실(13)로 유입된 스팀이나 연무를 가열시키고 가열실(18)에도 전달된다.The exhaust chamber 15 is formed in a constant volume on the outer circumference of the steam chamber 13. The exhaust chamber 15 communicates with the combustion chamber 10 to discharge the 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 steam or mist introduced into the steam chamber 13 and is also transmitted to the heating chamber 18.
가열실(18)은 배기실(15) 외주연에 일정 체적으로 형성된다. 가열실(18)은 배기실(15)에서 전달된 열로 외부에서 공급된 스팀이나 에어를 가열시키고, 일정 온도로 데워진 스팀이나 에어를 배출관(19)을 통해 배출시킨다.The heating chamber 18 is formed in a constant volume on the outer periphery of the exhaust chamber 15. The heating chamber 18 heats steam or air supplied from the outside with the heat transferred from the exhaust chamber 15, and discharges the steam or air warmed to a predetermined temperature through the discharge pipe 19.
또한, 재열증기 발생장치(1)는 단열을 위하여 외주연에 일정 두께의 단열재(30)가 결합되고, 단열재(30) 외측에는 하우징(31)이 결합된다.In addition, the reheat steam generator 1 is a heat insulating material 30 of a predetermined thickness is coupled to the outer periphery for heat insulation, the housing 31 is coupled to the outside of the heat insulating material (30).
이와 같이 이루어진 본 발명에 따른 재열증기 발생장치의 작용을 설명한다.The operation of the reheat steam generator according to the present invention made as described above will be described.
도 4에서, 재열증기 발생장치(1)의 유입관(12)을 통해 공급된 스팀이나 연무가 증기실(13)에 채워진 상태에서 버너(11)를 작동시켜 화염이 분사되면, 복수의 증기히팅관(20)을 통해 유입된 스팀이나 연무는 재열증기가 된다. 이때, 버너(11)를 작동시켜 연소실(10) 내부의 온도를 상승시킨 후에 유입관(12)을 통해 증기실(13)로 스팀이나 연무가 공급될 경우에 연소실(10)에서 증기실(13)로 전달된 열로 스팀이나 연무는 1차적으로 가열된다. 그리고 연소실(10)에서 연소된 가스는 배기실(15)을 통해 가스배출관(16)을 통해 배출되는 동안 증기실(13)에 폐열을 전달함으로써 증기실(13)의 스팀이나 연무를 더욱 가열시킬 수 있다.In FIG. 4, when the flame is injected by operating the burner 11 while the steam or mist supplied through the inlet pipe 12 of the reheat steam generator 1 is filled in the steam chamber 13, a plurality of steam heating Steam or mist introduced through the pipe 20 is reheat steam. At this time, when the burner 11 is operated to raise the temperature inside the combustion chamber 10, when steam or mist is supplied to the steam chamber 13 through the inlet pipe 12, the steam chamber 13 is discharged from the combustion chamber 10. The heat transferred to) heats steam or mist primarily. In addition, the gas combusted in the combustion chamber 10 transfers waste heat to the steam chamber 13 while being discharged through the gas discharge pipe 16 through the exhaust chamber 15 to further heat steam or mist in the steam chamber 13. Can be.
더욱이 증기실(13)의 스팀이나 연무는 제1증기히팅관(21) 내지 제4증기히팅관(24)의 입구를 통해 유입된 후에 재열증기가 되어 각 증기히팅관(20)의 출구를 통해 증기배출관(14)으로 배출된다. 따라서 본 발명의 재열증기 발생장치는 제1증기히팅관(21) 내지 제4증기히팅관(24)을 통해 많은 양의 재열증기를 생성 및 배출시킬 수 있다.Furthermore, steam or mist in the steam chamber 13 is introduced through the inlet of the first steam heating tube 21 to the fourth steam heating tube 24 and then reheated to steam through the outlet of each steam heating tube 20. It is discharged to the steam discharge pipe (14). Therefore, the reheat steam generator of the present invention can generate and discharge a large amount of reheat steam through the first steam heating tube 21 to the fourth steam heating tube 24.
또한, 재열증기 발생장치(1)의 공급관(17)을 통해 가열실(18)로 공급된 스팀이나 에어는 배기실(15)로부터 전달된 열로 인하여 일정 온도로 가열된 후에 배출관(19)을 통해 배출된다.In addition, steam or air supplied to the heating chamber 18 through the supply pipe 17 of the reheat steam generator 1 is heated to a predetermined temperature due to the heat transferred from the exhaust chamber 15 and then through the discharge pipe 19. Discharged.
이와 같이 연소실(10)에서는 버너(11)에서 발생된 화염으로 복수의 증기히팅관(20)에서 재열증기가 생성되도록 함과 더불어 증기실(13)에 전달된 열로 스팀이나 연무를 1차적으로 가열할 수 있도록 하고, 연소실(10)에서 연소된 후에 발생된 배기가스는 배기실(15)을 통과하면서 증기실(13)로 열을 전달함과 더불어 가열실(18)에서도 증기실(13)로 열이 전달되어 스팀이나 연무가 가열되도록 한다. 따라서 증기실(13)에서 연소실(10) 및 배기실(15)에서 전달된 열로 스팀이나 연무가 1차 가열되고, 1차 가열된 스팀이나 연무는 복수의 증기히팅관(20)을 통과하면서 재열증기로 변한다. 증기히팅관(20)에서 생성된 재열증기는 증기배출관(14)을 통해 배출된다.As such, in the combustion chamber 10, reheat steam is generated in the plurality of steam heating tubes 20 by the flame generated from the burner 11, and the steam or mist is primarily heated by the heat transferred to the steam chamber 13. The exhaust gas generated after the combustion in the combustion chamber 10 is transferred to the steam chamber 13 while passing through the exhaust chamber 15, and also from the heating chamber 18 to the steam chamber 13. Heat is transferred to allow steam or mist to heat up. Therefore, steam or mist is primarily heated by heat transferred from the combustion chamber 10 and the exhaust chamber 15 from the steam chamber 13, and the steam or mist heated first is reheated while passing through the plurality of steam heating tubes 20. Turns into steam. Reheat steam generated in the steam heating pipe 20 is discharged through the steam discharge pipe (14).
또한, 공급관(17)을 통해 가열실(18)로 유입된 스팀이나 에어는 배기실(15)에서 전달된 열로 일정 온도로 가열되어 배출관(19)을 통해 배출된다.In addition, steam or air introduced into the heating chamber 18 through the supply pipe 17 is heated to a predetermined temperature by heat transferred from the exhaust chamber 15 and discharged through the discharge pipe 19.
따라서 증기배출관(14)을 통해 배출되는 일정 온도의 재열증기와 더불어 배출관(19)을 통해 배출되는 일정 온도의 스팀이나 에어를 다양하게 이용할 수 있다. 또한, 가스배출관(16)을 통해 배출된 가스는 열교환을 통해 폐열로 이용할 수 있다.Therefore, in addition to the reheat steam at a constant temperature discharged through the steam discharge pipe 14, it is possible to use a variety of steam or air at a constant temperature discharged through the discharge pipe 19. In addition, the gas discharged through the gas discharge pipe 16 may be used as waste heat through heat exchange.
이상의 설명에서 본 발명은 특정의 실시 예와 관련하여 도시 및 설명하였지만, 특허청구범위에 의해 나타난 발명의 사상 및 영역으로부터 벗어나지 않는 한도 내에서 다양한 개조 및 변화가 가능하다는 것을 이 기술분야에서 통상의 지식을 가진 자라면 누구나 쉽게 알 수 있을 것이다.While the invention has been shown and described in connection with specific embodiments thereof, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who has a can easily know.
본 발명에 따른 재열증기 발생장치는 재열증기 발생 효율을 향상시키고, 연소된 배기가스의 폐열을 이용하여 흡입된 스팀이나 에어를 가열할 수 있어 부차적인 고온의 증기나 에어를 생성할 수 있어 재열증기 발생장치의 기능 향상과 더불어 고효율의 에너지 활용에 따라 소모되는 연료를 절감할 수 있으므로, 산업상 이용 가능성이 있다.The reheat steam generator according to the present invention improves the efficiency of reheat steam generation and can heat steam or air sucked by using the waste heat of the burned exhaust gas to generate secondary high temperature steam or air. In addition to improving the function of the generator, it is possible to reduce the fuel consumed by the use of high-efficiency energy, there is industrial potential.

Claims (3)

  1. 일정 체적의 공간부가 형성되고 내측 상단 중심에 버너가 설치된 연소실;A combustion chamber in which a predetermined volume of space is formed and a burner is installed at an inner top center thereof;
    상기 연소실 외주연에 일정 체적의 공간부가 형성되고 연소실에서 전달된 열로 외부에서 공급된 일정 온도의 스팀이나 무화된 연무를 1차 가열하는 증기실;A steam chamber in which a predetermined volume of space is formed at an outer circumference of the combustion chamber and primarily heats steam or atomized mist of a predetermined temperature supplied from the outside by heat transferred from the combustion chamber;
    상기 연소실 내부에 코일 형상으로 감겨 증기실에서 1차 가열된 후 공급된 스팀이나 연무를 버너에서 발생된 화염에 의해 일정 온도의 재열증기로 2차 가열시키는 복수의 증기히팅관;A plurality of steam heating tubes wound around the inside of the combustion chamber in a coil shape and secondly heating steam or mist supplied after being heated in a steam chamber to a reheat steam having a predetermined temperature by a flame generated from a burner;
    상기 증기실 외주연에 일정 체적으로 형성되고 연소실과 연통되어 연소실에서 연소된 배기가스를 가스배출관을 통해 배출시키는 배기실; 및An exhaust chamber formed in a predetermined volume on the outer circumference of the steam chamber and communicating with the combustion chamber to discharge the exhaust gas combusted in the combustion chamber through a gas discharge pipe; And
    상기 배기실 외주연에 일정 체적으로 형성되고 배기실에서 전달된 열로 외부에서 공급된 스팀이나 에어를 가열하는 가열실;을 포함하되,And a heating chamber formed in a predetermined volume on the outer circumference of the exhaust chamber and heating steam or air supplied from the outside with the heat transferred from the exhaust chamber.
    상기 증기히팅관은 입구가 증기실과 연통되고 출구가 증기배출관에 연결된 제1증기히팅관과 제2증기히팅관이 연소실 내측 벽면에 근접하여 설치되되, 제1증기히팅관 상부에 제2증기히팅관이 일정 거리를 두고 위치되면서 제1증기히팅관과 제2증기히팅관이 번갈아 코일 형상으로 설치되고,The steam heating tube has a first steam heating tube and a second steam heating tube connected to the steam chamber of the inlet and the outlet of the steam chamber in close proximity to the inner wall of the combustion chamber, and a second steam heating tube on the upper part of the first steam heating tube. The first steam heating pipe and the second steam heating pipe are alternately installed in a coil shape while being positioned at a predetermined distance.
    입구가 증기실과 연통되고 출구가 증기배출관에 연결된 제3증기히팅관과 제4증기히팅관이 제1증기히팅관과 제2증기히팅관에 근접하여 설치되되, 제3증기히팅관 상부에 제4증기히팅관이 일정 거리를 두고 위치되면서 제3증기히팅관과 제4증기히팅관이 번갈아 코일 형상으로 설치된 재열증기 발생장치.A third steam heating pipe and a fourth steam heating pipe, each of which has an inlet communicating with the steam chamber and an outlet connected to the steam discharge pipe, are installed adjacent to the first steam heating pipe and the second steam heating pipe, and the fourth steam heating pipe is located above the fourth steam heating pipe. Reheat steam generator is installed in a coil shape alternately the third steam heating pipe and the fourth steam heating pipe while the steam heating pipe is positioned at a certain distance.
  2. 제 1항에 있어서, The method of claim 1,
    상기 가열실 외주연에 단열을 위하여 일정 두께의 단열재가 장착된 재열증기 발생장치.Reheat steam generator equipped with a heat insulating material of a predetermined thickness for insulating the outer periphery of the heating chamber.
  3. 제 1항에 있어서, The method of claim 1,
    상기 증기히팅관을 버너로부터 분사된 화염이 직접 접촉되지 않도록 배열 설치된 재열증기 발생장치.Reheat steam generator is installed in the steam heating pipe arranged so that the flame injected from the burner does not directly contact.
PCT/KR2014/010158 2013-10-30 2014-10-28 Apparatus for generating reheat steam WO2015064995A1 (en)

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US15/032,229 US20160273760A1 (en) 2013-10-30 2014-10-28 Apparatus for generating reheat steam
AU2014340858A AU2014340858B2 (en) 2013-10-30 2014-10-28 Apparatus for generating reheat steam
RU2016121002A RU2016121002A (en) 2013-10-30 2014-10-28 DEVICE FOR FORMING AN INTERMEDIATE HEATING STEAM
CN201480056415.9A CN105637291B (en) 2013-10-30 2014-10-28 Apparatus for generating reheat steam
CA2927105A CA2927105C (en) 2013-10-30 2014-10-28 Apparatus for generating reheat steam
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