WO2017091916A1 - Plasma boiler with exhaust gas closed-loop ionisation combustion - Google Patents

Plasma boiler with exhaust gas closed-loop ionisation combustion Download PDF

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Publication number
WO2017091916A1
WO2017091916A1 PCT/CN2015/000831 CN2015000831W WO2017091916A1 WO 2017091916 A1 WO2017091916 A1 WO 2017091916A1 CN 2015000831 W CN2015000831 W CN 2015000831W WO 2017091916 A1 WO2017091916 A1 WO 2017091916A1
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plasma
boiler
exhaust gas
water
combustion
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PCT/CN2015/000831
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French (fr)
Chinese (zh)
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王守国
燕恩亮
王龙哲
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王守国
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Priority to PCT/CN2015/000831 priority Critical patent/WO2017091916A1/en
Priority to CN201580084982.XA priority patent/CN108291778A/en
Publication of WO2017091916A1 publication Critical patent/WO2017091916A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a plasma boiler for exhaust gas closed-cycle ionization combustion, in particular to a heating method for directly heating a boiler bottom by a thermal plasma combustion torch.
  • the plasma working gas is a mixed gas of air and water vapor
  • the exhaust gas is A closed-loop plasma boiler that does not use fossil fuels and that does not emit any exhaust gas.
  • the thermal resistance layer is easily formed on the outer wall of the electrode tube, the energy conversion efficiency is low and it is difficult to promote.
  • Atmospheric pressure thermal plasma technology has been widely used in recent years, for example, for plasma cutting, plasma cladding, plasma propulsion, and plasma-assisted combustion for power plant ignition.
  • CN 101848595A discloses an energy-saving boiler that uses a high-frequency high-pressure dielectric barrier discharge electrolysis steam to produce hydrogen after being sprayed into a furnace of a conventional boiler, and can achieve fuel economy by 30%.
  • the invention utilizes a conventional boiler, combined with a plasma hydrogen plant, to add some hydrolyzed hydrogen to the boiler to assist combustion.
  • the invention is a combustion modification of a conventional fossil fuel combustion boiler.
  • the type of plasma used is a low-temperature cold plasma which is a dielectric barrier discharge. Due to the low temperature of the plasma, the hydrogen production efficiency is also difficult to increase.
  • CN 104315495A discloses the use of heat of a boiler furnace helium gas to heat liquid water to generate high temperature steam and then to be injected into the furnace coal for combustion combustion.
  • the invention is also a combustion-supporting retrofit to a fossil fuel fired boiler.
  • Korean Patent No. PCT/KR2010/004032 2010.06.22 discloses the use of mixed combustion of combustion water and waste oil. Although plasma heating is also used, the plasma uses argon as a working gas and is expensive to use. The combustion in the furnace is still based on fossil fuel combustion, which inevitably produces exhaust emissions, and the exhaust gas still needs further treatment.
  • Korean Patent No. 1020110032551 discloses a structure in which a plasma torch is used to heat a spiral water pipe.
  • the plasma heating efficiency of the structure is relatively low, and a lot of heat is lost to the peripheral space. This heating can only function as a heating water pipe. It is difficult to generate steam, and it will inevitably lead to environmental pollution.
  • U.S. Patent No. 1020110032551 discloses the use of a mirror to face multiple reflections of photons in a plasma, using photon vibration and radiant energy to heat a body of water. This form of heating is inefficient and it is difficult to manufacture a large capacity boiler.
  • the working gas is a boiler that uses air and moisture, and does not use any fossil fuel, and the exhaust gas is closed and ionized.
  • the invention provides a plasma boiler for exhaust gas closed-cycle ionization combustion, which is a heating method for directly heating a boiler bottom by a direct current thermal plasma torch.
  • the working gas of the plasma torch is a mixed gas of air and water gas, and the exhaust gas thereof It is closed recycling, does not use any other fossil fuel, and does not emit any exhaust gas.
  • the temperature of the plasma torch is several thousand degrees, which makes the water gas entering the plasma torch easily decomposed into hydrogen and oxygen by ionization and simultaneously realizes hydrogen and oxygen. Burning.
  • the temperature on the electrode nozzle of the plasma torch is maintained in the range of 500-700 degrees Celsius, in which the more moisture is thermally decomposed into hydrogen and oxygen, thereby producing more More hydrogen and oxygen combustion.
  • the boiler body of the invention is a cylindrical metal can body having a certain amount of water inside, and a bottom portion having a circular bottom surface, which is placed directly above a plasma torch nozzle and maintains a certain gap.
  • This heating method directly at the bottom of the furnace is also a heating method for efficient heat transfer.
  • the boiler body has an automatic water supply pipe and a valve on the bottom side thereof, and a water level display meter and a water level sensor connected to the side of the furnace body, and a steam outlet, a gas pressure gauge and a gas pressure gauge are arranged on the upper side of the furnace body. Steam overpressure explosion-proof device. These boiler fittings ensure the safe use of the boiler.
  • An exhaust gas collecting cover made of a metal plate is arranged on a periphery of the boiler body, and an air inlet is arranged at a top position of the exhaust gas collecting cover, and all the exhaust gas after the combustion is collected into the air inlet. Then enter the exhaust gas closed loop system. This ensures that the boiler does not have any exhaust emissions.
  • the plasma torch is a thermal plasma driven by a DC arc power source, which is composed of a water-cooled cathode and a water-cooled electrode with a circular nozzle.
  • the cathode is fixed below the ground electrode at the cathode and the ground.
  • An insulating material is disposed between the electrodes, and the insulating material is integrally formed with the two electrodes and placed under the boiler body.
  • Two inlet ports are provided on the insulating material of the plasma torch, and the gas is ionized to form a thermal plasma by rotating the air inlet, and the thermal plasma is driven by a certain air flow pressure.
  • the nozzle of the ground electrode is ejected upward to form a thermal plasma torch, which is directly injected to the bottom of the boiler for heating.
  • the cathode of the plasma torch is a water-cooled electrode connected to the cathode of the output of the DC power source; the ground electrode of the plasma torch is connected and fixed on a platform of a metal bracket, and the exhaust gas
  • the collecting cover constitutes the same pole and is connected to the earth; and the boiler body and the exhaust gas collecting cover, the bracket platform, and the steam output pipe and the water supply pipe are insulated by the insulating material, so that the boiler body is self-contained As a floating electrode. This connection ensures that the boiler body does not directly form an arc with the cathode to break through its bottom during use.
  • the exhaust gas closed loop system of the present invention comprises a gas pipeline, a heat exchanger, an air compressor, a water ultrasonic atomizer, a sealing ring and the like. After the exhaust gas is collected by the gas collecting hood, it first enters a heat exchanger, and the heat exchanger cools and cools the exhaust gas. This heat exchange is cooled on the one hand for heat reuse, and the other is to ensure The gas entering the air compressor is cooler and can be pressurized by normal compression because the hot gas is difficult to compress.
  • the purpose of the air compressor is as follows: one is to have sufficient suction to suck out all the exhaust gas after combustion; the other is to compress and pressurize the exhaust gas to ensure the gas flowing back to the plasma torch electrode. , with sufficient flow rate and flow rate to ensure the discharge length of the plasma torch.
  • the exhaust gas also flows through an ultrasonic atomizer, the purpose of which is to carry the ultrasonically atomized water and gas into the thermal plasma combustion torch, so that the water gas passes through the thermal plasma ionization and pyrolysis.
  • the intense combustion of hydrogen and oxygen is formed. .
  • the invention adopts a flange seal between the bottom of the exhaust gas collecting cover and the ground electrode table, and a window observation port on the bottom side thereof for observing and detecting the combustion state of the plasma burning torch.
  • the water of the ultrasonic atomizer is controlled by the water level sensor to control the automatic water supply valve switch to realize automatic water supply; the water supply of the boiler is also controlled by the water level sensor to control the automatic water supply valve switch to realize automatic water supply, the water is taken from the water in the water cooling tank.
  • the water in the water-cooling tank keeps the water at a certain heat balance temperature due to the cyclic heat exchange, and the water (having a certain temperature) is also used for energy saving of the boiler.
  • the water cooling of the cathode is a large-flow water-cooling method, and on the other hand, the working gas is rotated into a manner to avoid local arc; in order to maintain the surface temperature of the ground electrode nozzle In the high temperature range of 500-700 degrees Celsius, The water cooling of the ground electrode controls the flow of water and sets the water cooling position away from the bottom of the ground electrode nozzle.
  • the cooling water required by the heat exchanger is heat-exchanged and cooled by a set of independent circulating water pumps and water paths.
  • the boiler of the present invention may be in the form of a boiler in which a plurality of furnace bodies are respectively connected with a steam collecting tank, each of which is heated by a plasma combustion torch, and respectively adopts a tail gas closed circulation system and a water circulation.
  • the steam generated by the multiple furnaces is concentrated into a steam collector, which produces higher pressure and larger flow of steam.
  • FIG. 1 is a cross-sectional view showing the structure of a plasma boiler for exhaust gas closed-cycle ionization combustion according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing the structure of a plasma torch portion and a mounting bracket according to a first embodiment of the present invention.
  • FIG 3 is a cross-sectional view showing another structure of a plasma torch of a cooling ground electrode according to a first embodiment of the present invention.
  • FIG. 4 is a cross-sectional view showing the structure of a plasma boiler for exhaust gas closed-cycle ionization combustion of a plurality of furnace structures according to a second embodiment of the present invention.
  • the working gas comprising the boiler body 100, the exhaust gas collecting cover 101, the plasma burning torch 109, and the plasma burning torch 109 is a combined gas of air and water vapor, and plasma is arranged at the bottom of the boiler body 100.
  • the body torch nozzle 118, the plasma torch 103 sprayed by the nozzle 118 directly heats the bottom of the boiler, and a metal exhaust gas collecting cover 101 is disposed on the periphery of the boiler body 100 to collect all the exhaust gas after combustion.
  • 101 and the table top of the boiler bracket 136 are fixedly sealed by a flange 127.
  • the boiler body 100 is a cylindrical metal can body made of a carbon steel material.
  • An automatic water supply valve 117 and an inlet pipe 120 are disposed on the bottom side of the boiler body 100, and a water level display 107 and a water level sensor 107A penetrating therethrough are disposed on the side of the furnace body, and a steam outlet 108 and an outlet are disposed at an upper portion thereof.
  • the valve switch 108A at the top of the boiler body 100, also has a gas pressure gauge 133 and a vapor pressure explosion damper 132.
  • the plasma torch 103 is a thermal plasma driven by a DC power source 111, the cathode 114 of which is connected to the cathode of the output end of the DC power source 111; the ground electrode 113 of the plasma torch is connected and fixed in a On the platform of the boiler support 136, it forms the same pole and grounded with the exhaust gas collection cover 101; the boiler furnace body 100 serves as a floating electrode, which is insulated from the exhaust gas collection cover 101, the support platform 136, the water supply pipe 120, and the steam outlet 108.
  • the material connection sleeve 119 is insulated.
  • the exhaust gas closed circulation system comprises a gas conduit 103, a heat exchanger 104, an air compressor 105, and an ultrasonic atomizer 106.
  • the exhaust gas after combustion of the plasma burning torch 109 is collected by the collecting cover 101 and enters into the exhaust gas closed circulation system.
  • the circulation path is in the direction of the arrow indicated by FIG. 1 : the exhaust gas first enters a heat exchanger 104 to perform heat exchange cooling on the exhaust gas. After cooling, the exhaust gas enters an air compressor 105 and is compressed and pressurized, flows through the ultrasonic atomizer 106, and carries a water gas flow back between the plasma electrodes to ionize to form a plasma combustion torch 109.
  • the circulating water cooling system includes a makeup water tank 130, a water cooling tank 135, water pipes 120, 121, 122, 123, 124, 125, and 126, and the like, and a circulating water pump 131 and valves 108A, 129, and 115, and the like.
  • the flow direction of the cooling water is directed with reference to the arrow calibrated in FIG.
  • FIG. 3 there is shown a cross-sectional view of another water-cooled plasma torch of a specific embodiment of the present invention.
  • the water cooling method of the plasma generator electrode 113 of this structure is an indirect water cooling method in which the water-cooling tube 137 is wound under the ground electrode 113.
  • the utility model is characterized in that: the boiler can also adopt a boiler form in which a plurality of furnace bodies 100 are respectively connected with a steam collecting tank 138, and each furnace body 100 is separately heated by a plasma combustion torch, and separate exhaust gas closed cycles are respectively adopted.
  • the steam generated by the plurality of furnace bodies is concentrated in one of the steam collecting tanks 138 and is discharged outward from the same steam outlet 108 to generate steam of higher pressure and larger flow rate.
  • the air compressor in the exhaust gas circulation system of the present invention requires regular inspection during use and periodically discharges the condensed water in its air compression tank.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Plasma Technology (AREA)
  • Chimneys And Flues (AREA)

Abstract

A plasma boiler with exhaust gas closed-loop ionisation combustion, comprising a boiler body (100), a plasma combustion torch (109), an exhaust gas collection cover (101), an exhaust gas closed-loop system, a water replenishing system, and a water circulation cooling system. The plasma combustion torch (109) employs a direct current plasma combustion torch, the working gas being air or water vapour, the boiler body (100) being arranged directly above a nozzle of the plasma combustion torch (109), the boiler body (100) being a suspended electrode insulated from the ground, and an exhaust gas collection cover (101) being arranged around the periphery of the boiler body (100); the exhaust gas after plasma combustion is entirely collected by the exhaust gas collection cover (101) and introduced into the exhaust gas closed-loop system for repeated ionisation combustion.

Description

尾气闭循环电离燃烧的等离子体锅炉Plasma boiler with exhaust gas closed-cycle ionization combustion 技术领域Technical field
本发明涉及一种尾气闭循环电离燃烧的等离子体锅炉，尤其是涉及一个采用热等离子体燃烧炬直接加热锅炉炉底的加热方式，等离子体工作气体是采用空气和水蒸气的混合气体、尾气是闭循环的、不采用石化燃料的、无任何废气排放的等离子体锅炉。The invention relates to a plasma boiler for exhaust gas closed-cycle ionization combustion, in particular to a heating method for directly heating a boiler bottom by a thermal plasma combustion torch. The plasma working gas is a mixed gas of air and water vapor, and the exhaust gas is A closed-loop plasma boiler that does not use fossil fuels and that does not emit any exhaust gas.
背景技术Background technique
传统锅炉是采用石化燃料：煤、油或天燃气，采用这些石化燃料不可避免的会带来废气排放，污染大气环境，传统锅炉必须要添加辅助烟气处理设备，能耗大、使用成本高。Conventional boilers use fossil fuels: coal, oil or natural gas. The use of these fossil fuels will inevitably lead to exhaust emissions and pollute the atmosphere. Traditional boilers must be supplemented with auxiliary flue gas treatment equipment, which consumes a lot of energy and costs.
至于过去所见到的电加热管锅炉，由于容易在电极管外壁容易结垢形成热阻层，因此能量转换效率低，不易推广。As for the electric heating tube boiler seen in the past, since the thermal resistance layer is easily formed on the outer wall of the electrode tube, the energy conversion efficiency is low and it is difficult to promote.
大气压热等离子体技术在近几年已得到广泛应用，例如已经用于：等离子体切割、等离子体熔覆、等离子体推进、以及等离子体辅助燃烧对电厂点火等。Atmospheric pressure thermal plasma technology has been widely used in recent years, for example, for plasma cutting, plasma cladding, plasma propulsion, and plasma-assisted combustion for power plant ignition.
CN 101848595A公开了采用高频高压介质阻挡放电电解水蒸汽制氢后在喷到传统锅炉炉膛内助燃的节能锅炉，可以实现节约燃料30％。该发明是利用了传统锅炉，结合一个等离子体制氢设备，在锅炉中添加一些水解氢气来助燃，该发明是对传统石化燃料燃烧锅炉的一种助燃改造。其所采用的等离子体类型是属于介质阻挡放电的低温冷等离子体，由于这种等离子体的温度较低，其制氢效率也很难提高。 CN 101848595A discloses an energy-saving boiler that uses a high-frequency high-pressure dielectric barrier discharge electrolysis steam to produce hydrogen after being sprayed into a furnace of a conventional boiler, and can achieve fuel economy by 30%. The invention utilizes a conventional boiler, combined with a plasma hydrogen plant, to add some hydrolyzed hydrogen to the boiler to assist combustion. The invention is a combustion modification of a conventional fossil fuel combustion boiler. The type of plasma used is a low-temperature cold plasma which is a dielectric barrier discharge. Due to the low temperature of the plasma, the hydrogen production efficiency is also difficult to increase.
CN 104315495A公开了利用锅炉炉膛气的热量对液态水进行加热生成高温水蒸汽再喷射到炉膛的煤炭中进行助燃燃烧。该发明也是对石化燃料燃烧锅炉的一种助燃改造。CN 104315495A discloses the use of heat of a boiler furnace helium gas to heat liquid water to generate high temperature steam and then to be injected into the furnace coal for combustion combustion. The invention is also a combustion-supporting retrofit to a fossil fuel fired boiler.
韩国专利号为PCT/KR2010/004032 2010.06.22公开了采用燃烧水和废油的混合燃烧，尽管也采用了等离子体加热助燃，但该等离子体是采用氩气作为工作气体，使用成本高，在炉膛内的燃烧仍是在石化燃料基础上的燃烧，不可避免的会产生废气排放物，其尾气仍需要进一步处理。Korean Patent No. PCT/KR2010/004032 2010.06.22 discloses the use of mixed combustion of combustion water and waste oil. Although plasma heating is also used, the plasma uses argon as a working gas and is expensive to use. The combustion in the furnace is still based on fossil fuel combustion, which inevitably produces exhaust emissions, and the exhaust gas still needs further treatment.
韩国专利号为1020110032551公开了采用等离子体燃烧炬来加热螺旋水管的一种结构，该结构的等离子体加热效率比较低，很多热量流失到外围空间中，这种加热只能是加热水管的功能，难以产生蒸汽，也不可避免的会代来环境污染。Korean Patent No. 1020110032551 discloses a structure in which a plasma torch is used to heat a spiral water pipe. The plasma heating efficiency of the structure is relatively low, and a lot of heat is lost to the peripheral space. This heating can only function as a heating water pipe. It is difficult to generate steam, and it will inevitably lead to environmental pollution.
美国专利号为1020110032551公开了利用反射镜面对等离子体中光子的多次反射，利用光子的振动和辐射能来对水体加热，这种形式的加热效率低，很难制造大容量的锅炉。U.S. Patent No. 1020110032551 discloses the use of a mirror to face multiple reflections of photons in a plasma, using photon vibration and radiant energy to heat a body of water. This form of heating is inefficient and it is difficult to manufacture a large capacity boiler.
目前看来，采用热等离子体燃烧炬直接来加热锅炉炉体底部，且工作气体是采用空气和水气，且不用任何石化燃料，尾气闭循环电离燃烧的锅炉，目前仍没有先例。At present, there is still no precedent for using a thermal plasma torch to directly heat the bottom of the boiler body, and the working gas is a boiler that uses air and moisture, and does not use any fossil fuel, and the exhaust gas is closed and ionized.
发明内容Summary of the invention
本发明是提供尾气闭循环电离燃烧的等离子体锅炉，它是采用直流热等离子体燃烧炬直接加热锅炉炉底的加热方式，等离子体燃烧炬的工作气体是空气和水气的混合气体，其尾气是闭循环利用，不采用其它任何石化燃料，无任何废气排放。The invention provides a plasma boiler for exhaust gas closed-cycle ionization combustion, which is a heating method for directly heating a boiler bottom by a direct current thermal plasma torch. The working gas of the plasma torch is a mixed gas of air and water gas, and the exhaust gas thereof It is closed recycling, does not use any other fossil fuel, and does not emit any exhaust gas.
由于本发明是采用直流热等离子体燃烧炬，其等离子体燃烧炬的温度为几千度，这使得进入到等离子体燃烧炬中的水气很容易被电离分解成氢气和氧气并同时实现氢氧的燃烧。 Since the present invention uses a direct current thermal plasma torch, the temperature of the plasma torch is several thousand degrees, which makes the water gas entering the plasma torch easily decomposed into hydrogen and oxygen by ionization and simultaneously realizes hydrogen and oxygen. Burning.
由于在本发明中，等离子体燃烧炬地电极喷口上的温度是保持在500-700摄氏度的范围，在该高温区间是有助于更多的水气被热分解成氢气和氧气，从而产生更多的氢氧燃烧。Since in the present invention, the temperature on the electrode nozzle of the plasma torch is maintained in the range of 500-700 degrees Celsius, in which the more moisture is thermally decomposed into hydrogen and oxygen, thereby producing more More hydrogen and oxygen combustion.
本发明锅炉炉体为圆筒形状的金属罐体，其内部设有一定量的水，其底部是圆形底面，它是放置在一个等离子体燃烧炬喷口的正上方，并保持一定的间隙。这种直接在炉底底部的加热方式也是一种高效传热的加热方式。The boiler body of the invention is a cylindrical metal can body having a certain amount of water inside, and a bottom portion having a circular bottom surface, which is placed directly above a plasma torch nozzle and maintains a certain gap. This heating method directly at the bottom of the furnace is also a heating method for efficient heat transfer.
所述的锅炉炉体，在其底侧设有一个自动补水管和阀门，在炉体侧面设有一个与其贯通的水位显示计和水位传感器，在其上部设有一个蒸汽出口、气体压力表和蒸汽过压防爆器。这些锅炉配件，保证了锅炉的安全使用。The boiler body has an automatic water supply pipe and a valve on the bottom side thereof, and a water level display meter and a water level sensor connected to the side of the furnace body, and a steam outlet, a gas pressure gauge and a gas pressure gauge are arranged on the upper side of the furnace body. Steam overpressure explosion-proof device. These boiler fittings ensure the safe use of the boiler.
所述的锅炉炉体的外围设有一个金属板制成的尾气收集罩，在该尾气收集罩的顶部位置设有一个吸气口，燃烧后的尾气全部被收集进入到该吸气口后，随后进入到尾气闭循环系统。这保证了该锅炉无任何尾气排放。An exhaust gas collecting cover made of a metal plate is arranged on a periphery of the boiler body, and an air inlet is arranged at a top position of the exhaust gas collecting cover, and all the exhaust gas after the combustion is collected into the air inlet. Then enter the exhaust gas closed loop system. This ensures that the boiler does not have any exhaust emissions.
所述的等离子体燃烧炬是采用直流电弧电源驱动的热等离子体，它是由一个水冷阴极和一个带有圆形喷口的水冷地电极构成，阴极是固定在地电极的下方，在阴极和地电极之间设有一个绝缘材料，该绝缘材料与两个电极构成一个整体，放置在锅炉炉体的下方。The plasma torch is a thermal plasma driven by a DC arc power source, which is composed of a water-cooled cathode and a water-cooled electrode with a circular nozzle. The cathode is fixed below the ground electrode at the cathode and the ground. An insulating material is disposed between the electrodes, and the insulating material is integrally formed with the two electrodes and placed under the boiler body.
在等离子体炬的绝缘材料上设有两个进气口，气体是通过旋转进气的方式进入到两个电极之间被电离形成热等离子体，该热等离子体在一定气流压力驱动下，从地电极的喷口向上喷出形成热等离子体燃烧炬，并直接喷射到锅炉的底部来加热。Two inlet ports are provided on the insulating material of the plasma torch, and the gas is ionized to form a thermal plasma by rotating the air inlet, and the thermal plasma is driven by a certain air flow pressure. The nozzle of the ground electrode is ejected upward to form a thermal plasma torch, which is directly injected to the bottom of the boiler for heating.
所述的等离子体燃烧炬的阴极是带有水冷的电极，它是与直流电源的输出端阴极连接；等离子体燃烧炬的地电极是连接与并固定在一个金属支架的平台上，它与尾气收集罩构成同一极并连接大地；而锅炉炉体与尾气收集罩、支架平台、以及蒸汽输出管和补水管通过绝缘材料绝缘开，使锅炉炉体自 身为一个悬浮电极。这种连接方式保证该锅炉炉体在使用过程中，不会与阴极直接形成电弧击穿其底部。The cathode of the plasma torch is a water-cooled electrode connected to the cathode of the output of the DC power source; the ground electrode of the plasma torch is connected and fixed on a platform of a metal bracket, and the exhaust gas The collecting cover constitutes the same pole and is connected to the earth; and the boiler body and the exhaust gas collecting cover, the bracket platform, and the steam output pipe and the water supply pipe are insulated by the insulating material, so that the boiler body is self-contained As a floating electrode. This connection ensures that the boiler body does not directly form an arc with the cathode to break through its bottom during use.
本发明说述的尾气闭循环系统，它是包含气体管道、换热器、空气压缩机、水超声雾化器和密封圈等。燃烧后的尾气由集气罩收集后，先进入到一个换热器，换热器会对尾气进行换热冷却降温，这种换热降温，一方面是为了热量再利用，另一方面是保证进入到空气压缩机的气体温度较低，能被正常压缩增压，因为热气是很难被压缩的。The exhaust gas closed loop system of the present invention comprises a gas pipeline, a heat exchanger, an air compressor, a water ultrasonic atomizer, a sealing ring and the like. After the exhaust gas is collected by the gas collecting hood, it first enters a heat exchanger, and the heat exchanger cools and cools the exhaust gas. This heat exchange is cooled on the one hand for heat reuse, and the other is to ensure The gas entering the air compressor is cooler and can be pressurized by normal compression because the hot gas is difficult to compress.
在尾气闭循环系统，采用空气压缩机的目的：一为了有足够的吸力来把燃烧后尾气全部吸出；二是对尾气进行压缩增压，以保证回流到等离子体燃烧炬电极之间时的气体，具有足够的流速和流量，从而保证等离子体燃烧炬的喷出长度。In the exhaust gas closed circulation system, the purpose of the air compressor is as follows: one is to have sufficient suction to suck out all the exhaust gas after combustion; the other is to compress and pressurize the exhaust gas to ensure the gas flowing back to the plasma torch electrode. , with sufficient flow rate and flow rate to ensure the discharge length of the plasma torch.
在尾气闭循环系统，尾气还流经一个超声雾化器，其目的是为了携带超声雾化后的水气一起进入到热等离子体燃烧炬中，使水气通过热等离子体电离和热解，形成氢和氧的剧烈燃烧。。In the exhaust gas closed loop system, the exhaust gas also flows through an ultrasonic atomizer, the purpose of which is to carry the ultrasonically atomized water and gas into the thermal plasma combustion torch, so that the water gas passes through the thermal plasma ionization and pyrolysis. The intense combustion of hydrogen and oxygen is formed. .
本发明在尾气收集罩的底部与地电极台面之间采用法兰密封，在其底侧设有一个视窗观察口，以便观察检测等离子体燃烧炬的燃烧状态。The invention adopts a flange seal between the bottom of the exhaust gas collecting cover and the ground electrode table, and a window observation port on the bottom side thereof for observing and detecting the combustion state of the plasma burning torch.
超声雾化器的水是通过水位传感器来控制自动补水阀开关来实现自动补水；锅炉的补水也是通过水位传感器来控制自动补水阀开关来实现自动补水，该水是取自水冷槽中的水，该水冷槽的水由于循环换热，使这些水能保持在一定的热平衡温度，采用该水(具有一定温度)对锅炉补水也起到节能的目的。The water of the ultrasonic atomizer is controlled by the water level sensor to control the automatic water supply valve switch to realize automatic water supply; the water supply of the boiler is also controlled by the water level sensor to control the automatic water supply valve switch to realize automatic water supply, the water is taken from the water in the water cooling tank. The water in the water-cooling tank keeps the water at a certain heat balance temperature due to the cyclic heat exchange, and the water (having a certain temperature) is also used for energy saving of the boiler.
为了延长等离子体燃烧炬阴极的使用寿命，一方面对阴极的水冷是采用大流量的水冷方式，另一方面工作气体是旋转进入的方式，从而避免局部电弧；为了保持地电极喷嘴的表面温度是在500-700摄氏度的高温范围，对 地电极的水冷要控制水的流量，并使水冷位置设置在远离地电极喷嘴的底部。In order to prolong the service life of the plasma torch cathode, on the one hand, the water cooling of the cathode is a large-flow water-cooling method, and on the other hand, the working gas is rotated into a manner to avoid local arc; in order to maintain the surface temperature of the ground electrode nozzle In the high temperature range of 500-700 degrees Celsius, The water cooling of the ground electrode controls the flow of water and sets the water cooling position away from the bottom of the ground electrode nozzle.
为了保证尾气闭循环系统中换热器的冷却效果，换热器所需要的冷却水是通过一套独立的循环水泵和水路来进行换热冷却的。In order to ensure the cooling effect of the heat exchanger in the exhaust gas closed circulation system, the cooling water required by the heat exchanger is heat-exchanged and cooled by a set of independent circulating water pumps and water paths.
为了提高锅炉的容量，本发明锅炉可以采用多个炉体分别与一个蒸汽集汽罐贯通的锅炉形式，每个炉体分别采用一个等离子体燃烧炬来加热，并分别采用的尾气闭循环系统和水循环冷却系统，多个炉体产生的蒸汽集中到一个蒸汽集汽罐中，可产生更高压力和更大流量的蒸汽。In order to increase the capacity of the boiler, the boiler of the present invention may be in the form of a boiler in which a plurality of furnace bodies are respectively connected with a steam collecting tank, each of which is heated by a plasma combustion torch, and respectively adopts a tail gas closed circulation system and a water circulation. In the cooling system, the steam generated by the multiple furnaces is concentrated into a steam collector, which produces higher pressure and larger flow of steam.
附图说明DRAWINGS
下面结合附图对本发明进一步的描述。Further description of the invention is provided below in conjunction with the drawings.
图1为本发明实施例一为尾气闭循环电离燃烧的等离子体锅炉结构剖视示意图。1 is a cross-sectional view showing the structure of a plasma boiler for exhaust gas closed-cycle ionization combustion according to a first embodiment of the present invention.
图2为本发明实施例一为等离子体燃烧炬部分以及安装支架的结构剖视示意图。2 is a cross-sectional view showing the structure of a plasma torch portion and a mounting bracket according to a first embodiment of the present invention.
图3为本发明实施例一所采用的另一种冷却地电极方式的等离子体燃烧炬结构剖视示意图。3 is a cross-sectional view showing another structure of a plasma torch of a cooling ground electrode according to a first embodiment of the present invention.
图4为本发明实施例二为多个炉体结构的尾气闭循环电离燃烧的等离子体锅炉结构剖视示意图。4 is a cross-sectional view showing the structure of a plasma boiler for exhaust gas closed-cycle ionization combustion of a plurality of furnace structures according to a second embodiment of the present invention.
附图标记清单List of reference signs
100锅炉炉体(不锈钢制成)100 boiler body (made of stainless steel)
101尾气收集罩(金属板材料制成)101 exhaust gas collection cover (made of sheet metal material)
102尾气收集罩顶部出气口102 exhaust gas collection cover top air outlet
103排气管道 103 exhaust pipe
104换热器104 heat exchanger
105空气压缩机105 air compressor
106超声雾化器106 ultrasonic nebulizer
107水位显示计107 water level display
107A水位传感器107A water level sensor
108锅炉蒸汽出口108 boiler steam outlet
108锅炉蒸汽出口阀门108 boiler steam outlet valve
109等离子体燃烧炬109 plasma torch
110锅炉内的水体Water body in 110 boiler
111等离子体电源111 plasma power supply
112绝缘材料112 insulation material
113地电极113 ground electrode
114阴极114 cathode
115超声雾化器自动补软化水箱115 ultrasonic atomizer automatic softening water tank
116进气管116 intake pipe
117锅炉补水阀开关117 boiler water supply valve switch
118等离子体燃烧炬喷口118 plasma torch nozzle
119绝缘材料连接管套119 insulation material connection sleeve
120锅炉补水管 120 boiler water supply pipe
121地电极水冷进水管121 ground electrode water cooling inlet pipe
122地电极水冷出水管122 ground electrode water cooling outlet pipe
123阴极水冷进水管(塑料管)123 cathode water cooling inlet pipe (plastic pipe)
124阴极水冷出水管(塑料管)124 cathode water cooling outlet pipe (plastic pipe)
125换热器水冷进水管125 heat exchanger water cooled inlet pipe
126换热器水冷出水管126 heat exchanger water cooling outlet pipe
127密封定位圈127 sealing positioning ring
128软化水补水箱128 softened water filling tank
129自动补水阀开关129 automatic water filling valve switch
130循环水池130 circulation pool
131水泵131 water pump
132蒸汽过压防爆器132 steam overpressure explosion-proof device
133气压表133 barometer
134观察窗134 observation window
135软化水135 softened water
136锅炉支架136 boiler bracket
137缠绕在地电极外的水冷铜管137 water-cooled copper tube wrapped around the ground electrode
138蒸汽集汽罐 138 steam collector
具体实施方式detailed description
实施例一Embodiment 1
参照附图1和2所给出的是本发明具体实施例一的详细描述。其特征在于：包含锅炉炉体100、尾气收集罩101、等离子体燃烧炬109、该等离子体燃烧炬109的工作气体是采用空气和水蒸汽的组合气体，在锅炉炉体100的底部设有等离子体燃烧炬喷嘴118，该喷嘴118所喷出的等离子体燃烧炬109直接加热锅炉的底部，在锅炉炉体100的外围设有一个金属尾气收集罩101来收集燃烧后的全部尾气，该收集罩101与锅炉支架136的台面采用法兰127固定密封。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to Figures 1 and 2, a detailed description of a specific embodiment 1 of the present invention is given. The utility model is characterized in that: the working gas comprising the boiler body 100, the exhaust gas collecting cover 101, the plasma burning torch 109, and the plasma burning torch 109 is a combined gas of air and water vapor, and plasma is arranged at the bottom of the boiler body 100. The body torch nozzle 118, the plasma torch 103 sprayed by the nozzle 118 directly heats the bottom of the boiler, and a metal exhaust gas collecting cover 101 is disposed on the periphery of the boiler body 100 to collect all the exhaust gas after combustion. 101 and the table top of the boiler bracket 136 are fixedly sealed by a flange 127.
参照附图1和2所给出的是本发明具体实施例一的详细描述。其特征还在于：锅炉炉体100为圆筒形状的金属罐体，它是采用碳钢材料制成。在锅炉炉体100的底侧设有一个自动补水阀117和进水管120，在炉体侧面设有一个与其贯通的水位显示计107和水位传感器107A，在其上部设有一个蒸汽出口108以及出口阀门开关108A、在锅炉炉体100的顶部还有气体压力表133和蒸汽压力防爆器132。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to Figures 1 and 2, a detailed description of a specific embodiment 1 of the present invention is given. It is also characterized in that the boiler body 100 is a cylindrical metal can body made of a carbon steel material. An automatic water supply valve 117 and an inlet pipe 120 are disposed on the bottom side of the boiler body 100, and a water level display 107 and a water level sensor 107A penetrating therethrough are disposed on the side of the furnace body, and a steam outlet 108 and an outlet are disposed at an upper portion thereof. The valve switch 108A, at the top of the boiler body 100, also has a gas pressure gauge 133 and a vapor pressure explosion damper 132.
参照附图1和2所给出的是本发明具体实施例一的详细描述。其特征还在于：等离子体燃烧炬109是采用直流电源111驱动的热等离子体，它的阴极114是与直流电源111的输出端阴极连接；等离子体燃烧炬的地电极113是连接并固定在一个锅炉支架136的平台上，它与尾气收集罩101构成同一极并接地，；锅炉炉体100作为一个悬浮电极，它与尾气收集罩101、支架平台136、补水管120以及蒸汽输出口108通过绝缘材料连接管套119绝缘。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to Figures 1 and 2, a detailed description of a specific embodiment 1 of the present invention is given. It is also characterized in that the plasma torch 103 is a thermal plasma driven by a DC power source 111, the cathode 114 of which is connected to the cathode of the output end of the DC power source 111; the ground electrode 113 of the plasma torch is connected and fixed in a On the platform of the boiler support 136, it forms the same pole and grounded with the exhaust gas collection cover 101; the boiler furnace body 100 serves as a floating electrode, which is insulated from the exhaust gas collection cover 101, the support platform 136, the water supply pipe 120, and the steam outlet 108. The material connection sleeve 119 is insulated.
参照附图1和2所给出的是本发明具体实施例一的详细描述。在等离子体燃烧炬的阴极114和地电极113之间，设有绝缘材料112绝缘，在该绝缘材料上设有两个进气口，气体是通过两路进气管116，并采用旋转进气方式 进入到两个电极之间被电离燃烧的。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to Figures 1 and 2, a detailed description of a specific embodiment 1 of the present invention is given. Between the cathode 114 of the plasma torch and the ground electrode 113, an insulating material 112 is provided, and two inlet ports are provided on the insulating material, and the gas passes through the two intake pipes 116 and adopts a rotary air inlet mode. Entering between the two electrodes is ionized and burned.
参照附图1和2所给出的是本发明具体实施例一的详细描述。其特征还在于：尾气闭循环系统包括气体管道103、换热器104、空气压缩机105以及超声雾化器106构成。等离子体燃烧炬109燃烧后的尾气全部被收集罩101收集后进入到尾气闭循环系统，其循环路径如图1所指示的箭头方向：尾气先进入到一个换热器104对尾气进行换热冷却，冷却后的尾气再进入到一个空气压缩机105被压缩增压后，流经超声雾化器106，并携带水气流回到等离子体电极之间进行电离形成等离子体燃烧炬109。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to Figures 1 and 2, a detailed description of a specific embodiment 1 of the present invention is given. It is also characterized in that the exhaust gas closed circulation system comprises a gas conduit 103, a heat exchanger 104, an air compressor 105, and an ultrasonic atomizer 106. The exhaust gas after combustion of the plasma burning torch 109 is collected by the collecting cover 101 and enters into the exhaust gas closed circulation system. The circulation path is in the direction of the arrow indicated by FIG. 1 : the exhaust gas first enters a heat exchanger 104 to perform heat exchange cooling on the exhaust gas. After cooling, the exhaust gas enters an air compressor 105 and is compressed and pressurized, flows through the ultrasonic atomizer 106, and carries a water gas flow back between the plasma electrodes to ionize to form a plasma combustion torch 109.
参照附图1和2所给出的是本发明具体实施例一的详细描述。循环水冷系统包括一个补水箱130、水冷槽135、水管120、121、122、123、124、125和126等，以及循环水泵131和阀门108A、129和115等。冷却水的流动方向参照图1中所标定的箭头指向。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to Figures 1 and 2, a detailed description of a specific embodiment 1 of the present invention is given. The circulating water cooling system includes a makeup water tank 130, a water cooling tank 135, water pipes 120, 121, 122, 123, 124, 125, and 126, and the like, and a circulating water pump 131 and valves 108A, 129, and 115, and the like. The flow direction of the cooling water is directed with reference to the arrow calibrated in FIG.
参照图3所示给出的是本发明具体实施例一的另一种水冷方式的等离子体燃烧炬结构剖视示意图。该结构的等离子体发生器地电极113的水冷方式是采用水冷管137缠绕在地电极113下方的间接水冷方式。Referring to Figure 3, there is shown a cross-sectional view of another water-cooled plasma torch of a specific embodiment of the present invention. The water cooling method of the plasma generator electrode 113 of this structure is an indirect water cooling method in which the water-cooling tube 137 is wound under the ground electrode 113.
实施例二Embodiment 2
本发明具体实施例二的描述。其特征在于：该锅炉也可以采用多个炉体100分别与一个蒸汽集汽罐138贯通的锅炉形式，每个炉体100分别单独采用一个等离子体燃烧炬来加热，并分别采用独立的尾气闭循环系统和水循环冷却系统，多个炉体产生的蒸汽是集中在一个集汽罐138中，并由同一个蒸汽出口108向外排出，可以产生更高压力和更大流量的蒸汽。Description of the second embodiment of the present invention. The utility model is characterized in that: the boiler can also adopt a boiler form in which a plurality of furnace bodies 100 are respectively connected with a steam collecting tank 138, and each furnace body 100 is separately heated by a plasma combustion torch, and separate exhaust gas closed cycles are respectively adopted. In the system and water circulation cooling system, the steam generated by the plurality of furnace bodies is concentrated in one of the steam collecting tanks 138 and is discharged outward from the same steam outlet 108 to generate steam of higher pressure and larger flow rate.
本发明尾气循环系统中的空气压缩机，在使用过程中需要定时检查，并定时排放掉其空气压缩罐中的冷凝积水。 The air compressor in the exhaust gas circulation system of the present invention requires regular inspection during use and periodically discharges the condensed water in its air compression tank.

Claims (9)

  1. 一种尾气闭循环电离燃烧的等离子体锅炉，包含有锅炉炉体、等离子体燃烧炬、尾气收集罩、尾气闭循环系统、补水系统和水循环冷却系统等。该等离子体燃烧炬是采用直流热等离子体的燃烧炬，它采用的工作气体是空气和水气，锅炉炉体是放置在等离子体燃烧炬喷嘴正上方，该锅炉炉体是与大地绝缘的悬浮电极，在锅炉炉体的外围设有一个尾气收集罩，等离子体燃烧后的尾气全部被收集罩收集进入到尾气闭循环系统实现重复电离燃烧。The utility model relates to a plasma boiler with exhaust gas closed cycle ionization combustion, which comprises a boiler furnace body, a plasma combustion torch, an exhaust gas collection cover, a tail gas closed circulation system, a water supply system and a water circulation cooling system. The plasma torch is a combustion torch using a direct current thermal plasma. The working gas used is air and water gas. The boiler body is placed directly above the plasma torch nozzle. The furnace body is suspended from the earth. The electrode is provided with an exhaust gas collecting cover on the periphery of the boiler body, and the exhaust gas after the plasma combustion is collected by the collecting cover into the exhaust gas closed circulation system to realize repeated ionization combustion.
  2. 根据权利要求1所述的尾气闭循环电离燃烧的等离子体锅炉，其特征在于：锅炉炉体为圆筒形状的金属罐体，其内部设有一定量的水，在炉体的底侧设有一个自动补水管和阀门，在炉体侧面设有一个与其贯通的水位显示计和水位传感器，在其上部设有一个蒸汽出口、阀门开关、气体压力表和蒸汽过压防爆器，锅炉炉体是放置在等离子体燃烧炬喷嘴正上方，并保持一定的间隙。The plasma boiler for exhaust gas closed-cycle ionization combustion according to claim 1, wherein the boiler body is a cylindrical metal can body having a certain amount of water inside, and a bottom side of the furnace body is provided. The automatic water supply pipe and the valve are provided with a water level display meter and a water level sensor on the side of the furnace body, and a steam outlet, a valve switch, a gas pressure gauge and a steam overpressure explosion-proof device are arranged at the upper part thereof, and the boiler body is placed It is directly above the plasma torch nozzle and maintains a certain gap.
  3. 根据权利要求1所述的尾气闭循环电离燃烧的等离子体锅炉，其特征在于：在锅炉炉体的外围设有一个金属板制成的尾气收集罩，该尾气收集罩的顶部设有一个出气口，等离子体燃烧后的全部被收集进入到尾气闭循环系统，实现循环重复利用。The plasma boiler for tail gas closed-cycle ionization combustion according to claim 1, characterized in that: a tail gas collecting cover made of a metal plate is arranged on the periphery of the boiler body, and an exhaust port is arranged at the top of the exhaust gas collecting cover. After the plasma is burned, it is collected into the exhaust gas closed loop system to achieve recycling.
  4. 根据权利要求1所述的尾气闭循环电离燃烧的等离子体锅炉，其特征在于：所采用的等离子体燃烧炬是直流热等离子体燃烧炬，它是由一个阴极和地电极构成，在阴极和阳极之间设有绝缘材料绝缘，在地电极上设有一个圆形喷口，在阴极和地电极上分别设有水冷通道，在正常工作时，地电极上的温度是保持在500-700摄氏度的范围。The plasma boiler for exhaust gas closed-cycle ionization combustion according to claim 1, wherein the plasma torch is a direct current thermal plasma torch, which is composed of a cathode and a ground electrode at the cathode and the anode. Insulated with insulation material, a circular nozzle is arranged on the ground electrode, and water cooling channels are respectively arranged on the cathode and the ground electrode. During normal operation, the temperature on the ground electrode is maintained in the range of 500-700 degrees Celsius. .
  5. 根据权利要求1和4所述的尾气闭循环电离燃烧的等离子体锅炉，其特征在于：等离子体燃烧炬的阴极是连接直流电源的阴极输出端，，其地电极是连接电源的地电极输出端并与锅炉固定平台支架、尾气收集罩构成同一接地极；而锅炉炉体是通过绝缘材料与地电极绝缘，形成一个悬浮电极。 The plasma boiler for exhaust gas closed-cycle ionization combustion according to claims 1 and 4, wherein the cathode of the plasma torch is a cathode output terminal connected to a direct current power source, and the ground electrode is a ground electrode output terminal connected to the power source. And the boiler fixed platform bracket and the exhaust gas collecting cover form the same grounding pole; and the boiler furnace body is insulated from the ground electrode by the insulating material to form a floating electrode.
  6. 根据权利要求1和4所述的尾气闭循环电离燃烧的等离子体锅炉，其特征在于：该等离子体燃烧炬采用的工作气体是空气和水气的混合气体，该混合气体是从电极之间绝缘材料上的进气口进入到电极之间，被电离形成热等离子体，并从地电极的喷口向上喷出形成热等离子体炬来加热锅炉炉体的底部。The plasma boiler for tail gas closed-cycle ionization combustion according to claims 1 and 4, characterized in that the working gas used in the plasma torch is a mixed gas of air and moisture, and the mixed gas is insulated from between the electrodes. The air inlet on the material enters between the electrodes, is ionized to form a thermal plasma, and is ejected upward from the nozzle of the ground electrode to form a thermal plasma torch to heat the bottom of the boiler body.
  7. 根据权利要求1所述的尾气闭循环电离燃烧的等离子体锅炉，其特征在于：等离子体燃烧后的尾气是进入到尾气闭循环系统，该系统是把集气罩收集到的气体通过管道先引入到一个换热器，流经换热器，实现换热冷却后再进入到一个空气压缩机，经空气压缩机压缩增压后再进入到一个超声雾化器，并携带雾化器所产生的水气回流进入到等离子体燃烧炬，进行循环电离闭环燃烧。The plasma boiler for tail gas closed-cycle ionization combustion according to claim 1, wherein the exhaust gas after the plasma combustion enters the exhaust gas closed circulation system, and the system first introduces the gas collected by the gas collecting hood through the pipeline. Go to a heat exchanger, flow through the heat exchanger, realize heat exchange cooling, then enter an air compressor, pressurize and pressurize the air compressor, then enter an ultrasonic atomizer, and carry the atomizer The water vapor is returned to the plasma torch for cyclic ionization closed-loop combustion.
  8. 根据权利要求1所述的尾气闭循环电离燃烧的等离子体锅炉，其特征在于：等离子体燃烧炬的阴极、阳极以及尾气闭循环系统中的换热器分别采用独立的循环水冷却，循环冷却系统包括水泵、水管、阀开关和水槽等。The plasma boiler for tail gas closed-cycle ionization combustion according to claim 1, wherein the cathode of the plasma torch, the anode and the heat exchanger in the exhaust gas closed loop system are respectively cooled by independent circulating water, and the circulating cooling system is used. Including pumps, water pipes, valve switches and sinks.
  9. 根据权利要求1所述的尾气闭循环电离燃烧的等离子体锅炉，其特征在于：这种尾气闭循环电离燃烧的等离子体锅炉也可以采用多个炉体分别与一个蒸汽集汽罐贯通的形式，每个炉体分别用一个等离子体燃烧炬来加热，并分别采用相应的尾气闭循环系统和水循环冷却系统，多个炉体产生的蒸汽集中在一个蒸汽集汽罐中，可产生更高压力和更大量的蒸汽。 The plasma boiler for tail gas closed-cycle ionization combustion according to claim 1, wherein the plasma boiler with closed-end ionization combustion can also adopt a form in which a plurality of furnace bodies are respectively connected with a steam collecting tank. The furnace bodies are respectively heated by a plasma torch, and the corresponding exhaust gas closed circulation system and water circulation cooling system are respectively adopted, and the steam generated by the plurality of furnace bodies is concentrated in one steam collecting tank, which can generate higher pressure and a larger amount. Steam.
PCT/CN2015/000831 2015-11-30 2015-11-30 Plasma boiler with exhaust gas closed-loop ionisation combustion WO2017091916A1 (en)

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