Container-type steam boiler device and mobile steam power generation equipment including same

Abstract

According to the present invention, a steam boiler device comprises: a container including a starting oil storage tank for storing starting oil, which is a fuel source for starting the steam boiler device, and a pyrolysis oil storage tank for storing plastic pyrolysis oil, which is one of fuel sources for operating the steam boiler device; a combustion unit provided in the container and configured to provide combustion heat to generate steam in a steam boiler unit; the steam boiler unit which is configured to receive water and generate steam using the combustion heat provided by the combustion unit; a fuel injection unit for supplying the steam generated by the steam boiler unit and waste plastic pyrolysis oil to the combustion unit; and a control unit for controlling the operation of the combustion unit and the steam boiler unit, wherein the temperature of the steam supplied to the combustion unit is controlled in a range of 200-600°C.

Description

Container-type steam boiler device and mobile steam power generation equipment including the same

[0001] The present invention relates to a container-type steam boiler device and a mobile steam power generation device including the same. More specifically, the invention relates to a container-type mobile steam boiler device that can be moved and installed for operation anywhere a boiler device is required, and to a device that generates steam using a fuel source including waste plastic pyrolysis oil obtained by processing waste plastics, which can be used as a source for power generation or heating, and particularly to a container-type steam boiler device and a mobile steam power generation device including the same that can ensure operational stability and reliability of the equipment by preventing clogging of the waste plastic pyrolysis oil supply line.

[0002] Humankind has achieved convenience by manufacturing and applying various polymer compounds to daily life following the Industrial Revolution and the development of the petrochemical industry. However, the disposal of waste resulting from industrial development aimed at convenience is currently a major concern for countries around the world. Products made of synthetic resins, such as tires, vinyl, and plastics—which are widely used in various industrial sectors and daily life—are recycled in only a tiny fraction after use, while the majority are classified as waste and disposed of through landfilling or incineration.

[0003] Plastic waste, such as synthetic resins, is considered a social nuisance because its volume is significantly large relative to its weight, resulting in higher landfill costs than general waste, and it does not decompose even after burial. In particular, the recycling rate of waste plastic is low compared to other types of waste. Specifically, looking at the year 2005 alone in Korea, the recycling rates for waste paper were 55%, waste tires 67%, glass bottles 58%, and scrap metal 43%, whereas plastic remained at only 15%. Furthermore, 4 to 5 million tons of waste plastic are generated annually, and the volume is increasing significantly every year.

[0004] Methods for treating such combustible waste include recycling, incineration, and landfilling. However, there are limitations on the materials that can be recycled, and in the case of incineration, there are serious secondary air pollution problems caused by the emission of air pollutants such as dust, hydrogen chloride (HCl), sulfur oxides (SOx), nitrogen oxides (NOx), and dioxins. In the case of landfilling, there are also serious pollution problems caused by soil contamination due to the non-biodegradability of combustible waste and by leachate.

[0005] Accordingly, as a means of recycling combustible waste without incineration or landfilling, research and development of emulsification methods or devices capable of obtaining useful oil by pyrolyzing combustible waste are actively underway.

[0006] Meanwhile, steam boilers heat water to generate high-temperature steam and utilize this generated steam; they are widely used in heating facilities, industrial applications, and food preparation.

[0007] This steam boiler is constructed with a structure in which a steam chamber and a water chamber are formed on the upper and lower sides within an outer tube containing insulation, and multiple water tubes are installed vertically between the steam chamber and the water chamber.

[0008] In such steam boilers, the combustion device is a very important component, and is structured to obtain a heat source by injecting fuel supplied from a fuel tank through a nozzle to cause combustion inside the combustion incineration chamber.

[0009] These combustion devices have the disadvantage of having weak heat output and high costs as they only directly burn fuel, and there was also the problem that inexpensive liquid fuels, such as pyrolysis oil containing bunker fuel oil, caused increased air pollution due to incomplete combustion.

[0010] Therefore, due to high oil prices, active research is currently being conducted to induce complete combustion and enhance firepower through the pulverization and activation of fuel by injecting inexpensive liquid fuel together with high-temperature steam obtained by heating water.

[0011] As part of an effort to solve the problem of using only liquid fuel, an emulsion combustion system has been proposed that utilizes the emulsion effect by mixing water or steam with the liquid fuel for direct combustion or steam mixing in a burner.

[0012] Combustion systems utilizing the emulsion effect have adopted methods of mixing water and fuel for direct combustion or supplying steam generated through a direct burner to mix and combust with oil.

[0013] Combustion systems utilizing the emulsion effect take advantage of the additional heat generated when carbon and water in the fuel mix to become water gas. Therefore, if the fuel and water mix and all become water gas, the total heat is significantly increased compared to the case where only fuel is burned.

[0014] However, since high temperatures and catalysts are required for carbon and water in the fuel to mix and form water gas, conventional combustion methods cannot meet these high-temperature conditions before the carbon is combusted. Consequently, water gasification occurs only after combustion, meaning that water inevitably reacts with the unburned carbon after most of the carbon components have already been burned. This is because water gasification does not occur before combustion due to the necessity of high-temperature conditions.

[0015] In addition, even though there have been attempts to achieve water gasification by mixing fuel and water, the research was conducted without considering the properties of heat, so it failed to provide the thermal conditions necessary for water and carbon to react structurally and achieve water gasification.

[0016] Therefore, structurally, water gasification could not be achieved in the combustion device; furthermore, under conditions where air is mixed in for combustion, cooling in the combustion chamber by air was inevitable. Consequently, since the rate of water gasification was bound to be very low at the temperature of the combustion chamber, increasing the content of water or steam only resulted in an increase in the latent heat loss of water vaporization or the heating heat of the steam.

[0017] Meanwhile, steam power generation is generally broadly categorized into nuclear, thermal, coal, and geothermal power; however, due to significantly low power generation efficiency, severe environmental and air pollution are occurring, necessitating urgent improvement measures. Yet, there are currently no clear solutions available with existing technology. Therefore, measures to enhance energy efficiency are urgently required.

[0018] Furthermore, a problem with steam power generation systems is the issue of handling fuel gases generated during fuel combustion. Fuel gases contain fine dust and components harmless to the human body resulting from incomplete combustion; if these are released directly into the atmosphere, they cause air pollution.

[0019] Meanwhile, conventionally, power needs requiring small to medium-sized power generation, such as 300 kW, require fixed power facilities, and there is a need for research and development on devices and equipment that can be implemented as mobile systems and easily moved to power needs requiring small to medium-sized power generation.

[0020]

[0021] Accordingly, the present invention, which aims to solve the aforementioned conventional problems, provides a container-type steam boiler device and a mobile steam power generation equipment including the same, which can generate steam using a fuel source including waste plastic pyrolysis oil obtained by processing waste plastics and use it as a source for power generation or heating, and can be implemented as a container-type mobile unit so that it can be moved, installed, and operated anywhere a boiler equipment is required.

[0022] In addition, another objective of the present invention is to provide a container-type steam boiler device and a mobile steam power generation equipment including the same, which can ensure operational stability and reliability of the equipment by preventing the blockage of the waste plastic pyrolysis oil supply pipeline caused by the hardening of the waste plastic pyrolysis oil in the waste plastic pyrolysis oil supply pipeline due to the characteristics of using waste plastic pyrolysis oil.

[0023] The problems solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0024] According to one aspect of the present invention for achieving the above objectives and other features of the present invention, a steam boiler device comprises: a container having a starting oil storage tank for storing starting oil, which is a fuel source for starting the steam boiler device, and a pyrolysis oil storage tank for storing plastic pyrolysis oil, which is one of the fuel sources for operating the steam boiler device; a combustion device unit provided in the container and configured to provide combustion heat to generate steam in the following steam boiler device unit; a steam boiler device unit configured to receive water and generate steam using the combustion heat of the combustion device unit; a fuel injection unit that supplies the steam generated in the steam boiler device unit and waste plastic pyrolysis oil to the combustion device unit; and a control device unit that controls the operation of the combustion device unit and the steam boiler device unit; wherein the temperature of the steam supplied to the combustion device unit is controlled to a range of 200℃ to 600℃.

[0025]

[0026] The container-type steam boiler device according to the present invention and the mobile steam power generation equipment including the same provide the following effects.

[0027] First, the present invention has the effect of providing an eco-friendly steam boiler device and steam power generation equipment by using relatively inexpensive waste plastic pyrolysis oil (waste plastic recycled oil) as one of the fuel sources for the steam boiler device or steam power generation equipment, and using steam for an emulsion effect as another.

[0028] Second, the present invention has the effect of providing excellent economic efficiency by minimizing the use of crude oil refined oil (kerosene) while maximizing the use of waste plastic pyrolysis oil.

[0029] Third, the present invention is implemented as a container-type mobile unit, which has the effect of allowing it to be moved, installed, and operated anywhere that requires small to medium-sized boiler equipment or steam power generation.

[0030] Fourth, due to the characteristics of using waste plastic pyrolysis oil, the present invention has the effect of preventing the blockage of the waste plastic pyrolysis oil supply pipeline caused by the hardening of the waste plastic pyrolysis oil in the waste plastic pyrolysis oil supply pipeline, thereby ensuring operational stability and operational reliability of the equipment.

[0031] Fifth, the present invention forms a sediment discharge section in the longitudinal and transverse joint zone or the bending zone (bend) of the waste plastic pyrolysis oil supply pipeline provided between the waste plastic pyrolysis oil tank and the pyrolysis oil injection nozzle, thereby enabling easy discharge of sediment contained in the waste plastic pyrolysis oil, which has the effect of excellent manageability and maintainability.

[0032] The effects of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below.

[0033]

[0034] FIG. 1 is a diagram schematically illustrating the configuration of a container-type steam boiler device according to the present invention.

[0035] FIG. 2 is a drawing showing a fuel injection unit included in a container-type steam boiler device according to the present invention.

[0036] FIG. 3 is a diagram schematically illustrating the overall configuration of a container-type steam boiler device according to the present invention when a pyrolysis oil blockage prevention means of one embodiment is provided.

[0037] Figure 4 is a drawing showing an enlarged view of section "A" of Figure 3.

[0038] FIG. 5 is a cross-sectional diagram schematically showing a means for preventing pyrolysis oil blockage of another embodiment included in a container-type steam boiler device according to the present invention.

[0039] FIG. 6 is a diagram schematically illustrating the configuration of a mobile steam power generation equipment including a container-type steam boiler device according to the present invention.

[0040]

[0041] Further objects, features, and advantages of the present invention can be more clearly understood from the following detailed description and the accompanying drawings.

[0042] Before providing a detailed description of the present invention, it should be understood that the present invention is capable of various modifications and may have various embodiments, and that the examples described below and illustrated in the drawings are not intended to limit the present invention to specific embodiments, but rather include all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention.

[0043] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0044] The terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0045] Additionally, terms such as "...part," "...unit," and "...module" as described in the specification refer to a unit that processes at least one function or operation, and this may be implemented in hardware, software, or a combination of hardware and software.

[0046] Furthermore, in the description referring to the attached drawings, identical components are assigned the same reference numeral regardless of drawing symbols, and redundant descriptions thereof are omitted. In describing the present invention, if it is determined that a detailed description of related prior art could unnecessarily obscure the essence of the present invention, such detailed description is omitted.

[0047] Hereinafter, a container-type steam boiler device according to a preferred embodiment of the present invention and a mobile steam power generation equipment including the same will be described in detail with reference to the attached drawings.

[0048] First, a container-type steam boiler device according to the present invention will be described in detail with reference to FIGS. 1 to 5.

[0049] FIG. 1 is a schematic diagram illustrating the configuration of a container-type steam boiler device according to the present invention, FIG. 2 is a diagram showing a fuel injection unit included in a container-type steam boiler device according to the present invention, FIG. 3 is a schematic diagram illustrating the overall configuration of a device in which a pyrolysis oil blockage prevention means of one embodiment is provided in a container-type steam boiler device according to the present invention, FIG. 4 is an enlarged view of section "A" of FIG. 3. FIG. 5 is a cross-sectional diagram schematically illustrating a pyrolysis oil blockage prevention means of another embodiment included in a container-type steam boiler device according to the present invention.

[0050] As shown in FIGS. 1 to 5, the container-type steam boiler device according to the present invention comprises a container (100), a combustion device part (200), a steam boiler device part (300), a combustion exhaust gas treatment device part (400), and a control device part (500).

[0051] Specifically, the container-type steam boiler device according to the present invention comprises: a container (100) formed in a predetermined size as shown in FIGS. 1 to 5; a combustion device (200) provided in the container (100) and configured to provide combustion heat to generate steam in the steam boiler device part (300) below; a steam boiler device part (300) provided inside the container (100) and configured to generate steam through combustion (heat) of the combustion device part (200); a combustion exhaust gas treatment device part (400) provided inside the container (100) and receiving the combustion gas (or exhaust gas) of the combustion device part (200) generated while heating the boiler device part (300), purifying it, and discharging it to the outside; and a control device part (500) that controls the operation of each device part of the mobile steam boiler device, namely the combustion device part (200), the steam boiler device part (300), and the combustion exhaust gas treatment device part (400).

[0052] The above container (100) is formed in a predetermined size and configured to accommodate a combustion device part (200), a steam boiler device part (300), a combustion exhaust gas treatment device part (400), and a control device part (500).

[0053] In the present invention, the container (100) is configured to be a container that can be mounted on a conventional container cargo vehicle, and since the detailed configuration of such a container is a known matter, a detailed description thereof is omitted. Here, the container (100) of the present invention may be configured so that one side can be opened for mounting, fixing, and maintenance of each device part provided inside it.

[0054] Furthermore, the combustion device unit (200) is provided inside the container (100) and comprises a combustion device body (210) having a combustion chamber, a starting oil supply unit (220) provided inside the container (100) and configured to supply starting oil (ignition fuel) for starting the combustion device unit (200) as a fuel source for the combustion device unit (200), a waste plastic pyrolysis oil supply unit (230) provided inside the container (100) and configured to supply (waste) plastic pyrolysis oil (hereinafter abbreviated as 'pyrolysis oil') as one of the fuel sources for the combustion operation of the combustion device unit (200), and a water supply unit (240) provided inside the container (100) and configured to supply water to the steam boiler unit (300) to generate steam in the steam boiler unit (300) and to supply water to the steam boiler unit (300) to provide steam, which is another fuel source for the combustion operation of the combustion device unit (200). The combustion device unit (200) comprises a fuel injection unit (250) configured to receive the above-mentioned starting oil, pyrolysis oil, and steam and to inject them within the combustion device body (210); an ignition means (260) provided on one side of the fuel injection unit (250) and configured to ignite the ignition fuel injected from the fuel injection unit (250); and an air supply unit (270) configured to supply air to the combustion chamber of the combustion device body (210) and / or the fuel injection unit (250). In addition, the combustion device unit (200) may further include a pyrolysis oil blockage prevention means (600) configured to prevent blockage by pyrolysis oil in the pyrolysis oil supply pipe (233) of the waste plastic pyrolysis oil supply unit (230).

[0055] The above combustion device body (210) is a tubular body configured to withstand high-temperature flames (combustion heat) by generating a flame in a combustion chamber.

[0056] The above-described starting oil supply unit (220) comprises a starting oil storage tank (221) in which starting oil is stored, a starting oil supply pump (222) that pumps starting oil from the starting oil storage tank (221) and supplies it to a fuel injection unit (250), a starting oil control solenoid valve (224) provided in a starting oil supply pipeline (223) through which starting oil is supplied from the starting oil storage tank (221) to control the supply of starting oil, a starting oil flow control valve (225) provided in the starting oil supply pipeline (223) to control the supply flow rate of starting oil, and a starting oil flow measuring gauge (226) provided in the starting oil supply pipeline (223) to measure the supply flow rate of starting oil. In the present invention, the starting oil may be diesel oil or kerosene.

[0057] And the waste plastic pyrolysis supply unit (230) is provided inside the container (100) and is configured to supply pyrolysis oil as one of the fuel sources for the combustion operation of the combustion device (200).

[0058] Specifically, the waste plastic pyrolysis oil supply unit (230) comprises a pyrolysis oil storage tank (231) in which pyrolysis oil is stored, a pyrolysis oil supply pump (232) that pumps pyrolysis oil from the pyrolysis oil storage tank (231) and supplies it to a fuel injection unit (250), a pyrolysis oil control solenoid valve (234) that controls the supply of pyrolysis oil and is provided in a pyrolysis oil supply pipeline (233) through which waste plastic pyrolysis oil is supplied from the pyrolysis oil storage tank (231), a pyrolysis oil flow rate control valve (235) that controls the supply flow rate of pyrolysis oil and is provided in the pyrolysis oil supply pipeline (233), and a pyrolysis oil flow rate measuring gauge (236) that measures the supply flow rate of pyrolysis oil and is provided in the pyrolysis oil supply pipeline (233).

[0059] Additionally, the waste plastic pyrolysis oil supply unit (230) may further include a preheating means (237) configured on the pyrolysis oil supply pipeline (233) to heat the pyrolysis oil supplied from the pyrolysis oil storage tank (231) through the pyrolysis oil supply pipeline (233) to a predetermined temperature so that the pyrolysis oil is supplied preheated to a predetermined degree.

[0060] Furthermore, the water supply unit (240) is provided inside the container (100) and is configured to supply water to a steam boiler unit (300) to provide steam, which is another fuel source for the combustion operation of the combustion unit (200).

[0061] Specifically, the water supply unit (240) includes a water storage tank (241) in which water is stored, a water supply pump (242) that pumps water from the water storage tank (241) and supplies it to a fuel injection unit (250), a water control solenoid valve (244) provided in a water supply pipeline (243) to control the supply of water, a water flow control valve (245) provided in the water supply pipeline (243) to control the supply flow rate of water, and a water flow measuring gauge (246) provided in the water supply pipeline (243) to measure the supply flow rate of water.

[0062] In the present invention, since the container-type steam boiler device of the present invention can be configured to receive water at the location where it is installed, the water supply unit (240) can be omitted.

[0063] Furthermore, the fuel injection unit (250) is provided in the combustion device body (210) and is configured to receive the starting oil, pyrolysis oil, and steam and to inject them within the combustion device body (210).

[0064] Specifically, the fuel injection unit (250) comprises a nozzle body (251; 251-1, 251-2, 251-3) formed with a venturi section (251a) for generating a venturi effect inside, a combustion fuel source supply connector (253) provided in the nozzle body (251) and connected to receive starting oil and pyrolysis oil by selectively communicating with a starting oil supply pipeline (223) or a pyrolysis oil supply pipeline (233) through a three-way valve (252), an air supply connector (254) provided in the nozzle body (251) and connected to receive external air from an air supply unit (260), and a steam supply connector (255) provided in the nozzle body (251) and connected to receive steam by connecting to a steam supply branch line (350) of a steam boiler unit (300).

[0065] The nozzle body (250; 251-1, 251-2, 251-3) is composed of a central body part (251-1) in which a venturi part (251a) is formed inside, a head part (251-2) coupled to the front of the central body part (251-1) and having an outlet (251b) formed in the center of the front end for spraying starting oil, and a cover cap part (251-3) coupled to the rear of the central body part (251-1).

[0066] The air supply connector (254) is connected to the central body part (251-1) to form an air inlet passage through which air (outside air) is introduced. The air inlet passage is formed by a first inlet passage (254a-1) formed perpendicularly or intersectingly with respect to the central axis (central axis in the direction of fluid flow) of the central body part (251-1), a second inlet passage (254a-2) parallel to the central axis of the central body part (251-1) at the extended end of the first inlet passage (254a-1), and a third inlet passage (254a-3) formed perpendicularly at the extended end of the second inlet passage (254a-2).

[0067] Here, an introduction chamber (254a-4) forming a space of a predetermined size is formed at the upper part of the third introduction passage (254a-3). The third introduction passage (254a-3) is formed to open on the downstream side of the flow direction from the venturi section (251a).

[0068] Furthermore, the combustion fuel source supply connector (253) and the steam supply connector (255) are provided in the cover cap portion (251-3), and their respective communication ports may be formed facing each other on the same line, or, as shown in the drawing, may be formed offset from each other without facing each other.

[0069] Preferably, the combustion fuel source supply connector (253) and the steam supply connector (255) are each formed such that the connecting port forms a tangent to the inner wall surface of the cover cap portion (251-3) and is formed inclined toward the central body portion (251-1).

[0070] This allows the flow of fuel and steam, which are respectively introduced through the combustion fuel source supply connector (253) and the steam supply connector (255), to be mixed quickly and uniformly while forming a vortex along the wall surface within the nozzle body (251), thereby improving the water gasification of the combustion fuel source and increasing combustion efficiency so that the combustion fuel source can be completely combusted.

[0071] The above nozzle body (251) may be configured to be provided in multiple nozzle mounting portions (251-1) having supply passages for supplying steam, starting oil, or pyrolysis oil.

[0072] And the ignition means (260) is a component configured to be provided on one side of the fuel injection unit (250) and to ignite the ignition fuel ejected from the fuel injection unit (250). The ignition means (260) may employ a known ignition means, and a detailed description thereof is omitted.

[0073] Furthermore, the air supply unit (270) is a component configured to supply air (outside air) to the combustion chamber of the combustion device body (210).

[0074] The air supply unit (270) comprises a fan (271) or an air pump (271) inside a housing having an air intake formed on one side and an air exhaust formed on the other side, an air supply conduit (272) connected to an air supply connector (254) of a fuel injection unit (250) to provide air supplied by the fan (271) to the fuel injection unit (250), and an air control solenoid valve (273) provided in the air supply conduit (272) to control the supply of air.

[0075] The air intake formed in the housing equipped with the fan (271) is preferably formed at the bottom of the housing, but this is just one example and it may also be formed on any other side of the housing.

[0076] A fan (271) installed inside the above housing is connected to a motor, and when the power to the motor is turned on, the motor operates and the fan rotates, drawing in air from the atmosphere through an air intake formed on one side of the housing and discharging it through an air exhaust to supply it to the air supply connector (254) of the fuel injection unit (250).

[0077] In addition, the air supply unit (270) may be equipped with a means for controlling the amount of outside air inflow to control the degree of opening and closing of the air intake.

[0078] The above external air intake volume control means is installed with a damper that rotates in an air intake formed on one side of the housing, and is controlled by the control unit of the control device unit (500) in conjunction with the supply volume of the supplied fuel source (ignition fuel and / or first and second combustion fuel sources).

[0079] Next, the steam boiler unit (300) is provided inside the container (100) and is a unit configured to generate steam through combustion (heat) of the combustion unit (200).

[0080] The above steam boiler unit (300) includes a boiler unit housing (310) connected to one side of the lower part to transfer combustion heat (or flame) of the combustion unit (200), a heat exchange pipe module (320) provided in one stage or two or more stages inside the boiler unit housing (310) to receive water supplied from the water supply unit (240) and convert it into steam, a water supply tank (not shown) that supplies water to the heat exchange pipe module (320), a steam discharge pipe (340) connected to the other end of the heat exchange pipe module (320) and configured to supply steam generated from the heat exchange pipe module (320) to the outside, and a steam supply branch line (350) branched from the steam discharge pipe (340), with the other end connected to the steam supply connector (255) of the fuel injection unit (250) to supply steam generated in the steam boiler unit (300) to the fuel injection unit (250).

[0081] The inner lower part of the boiler device housing (310) forms a space for receiving flames ejected from a combustion device part (200) provided on one side of the lower part, and the upper side may be configured with one or more heat exchange pipe modules (320).

[0082] The heat exchange pipe module (320) is configured such that, as shown in the drawing, unit pipe modules are provided in two or more stages (three stages in the drawing) so that the supplied water can be sufficiently steamed and discharged.

[0083] The above heat exchange pipe module (320) can withstand high temperatures and is formed of a metal material with excellent thermal conductivity, and can be configured to form a zigzag flow or a spiral flow, but is not limited thereto.

[0084] In the present invention, it is preferable that the heat exchange pipe module (320) be configured so that water supplied from the water supply unit (240) can be steamed as it flows in an upward flow.

[0085] The above water supply tank (not shown) may share the water storage tank (241). Additionally, water supply to the heat exchange pipe module (320) may be supplied from a water supply network or water supply network in the mobile installation area, in which case the water supply tank may be omitted.

[0086] The above steam discharge pipe (340) may include a flow control valve (341) and a flow measuring gauge (342) for measuring the supply flow rate in the line.

[0087] The above steam discharge pipe (340) can be supplied, for example, to a steam power generation device that generates electricity using steam as an energy source.

[0088] In the present invention, the steam boiler unit (300) may be composed of two or more, and the drawing shows an example in which two steam boiler units (300) are provided.

[0089] Next, the combustion exhaust gas treatment unit (400) is provided inside the container (100) and is a unit provided to receive the combustion gas (or exhaust gas) of the combustion unit (200) generated while heating the steam boiler unit (300), purify it, and discharge it to the outside.

[0090] The above combustion exhaust gas treatment unit (400) includes an exhaust gas discharge line (410) connected to a boiler unit housing (410), and a known purification treatment device (420, 430) provided on the downstream side of the exhaust gas discharge line (410) to purify and treat the exhaust gas.

[0091] For example, the purification treatment device (420, 430) may include a cyclone dust collector (420) and a deodorizing device (430).

[0092] In other words, the purification treatment device may be composed of a multi-cyclone (420) as a known dust collector that collects and landfills fly ash through a catalytic reduction tower, and may be composed of a bag filter section (430) as a known air purification device that filters foreign substances contained in the exhaust gas.

[0093] The above combustion exhaust gas treatment unit (400) may be a known one, so a detailed description thereof is omitted.

[0094] Furthermore, the control unit (500) is a component that controls the operation of each unit of the mobile steam boiler device, namely the combustion unit (200), the steam boiler unit (300), and the combustion exhaust gas treatment unit (400), and may include a control module configured to turn the entire device on / off and execute a control operation based on a preset program.

[0095] The above control unit (500) is configured to control the temperature of the steam supplied to the combustion unit (200) in real time. Specifically, the steam generated in the steam boiler unit (300) is supplied to the fuel injection unit (250) through a steam supply branch line, and the steam temperature is controlled to be maintained in the range of 200°C to 600°C. When such high-temperature steam is supplied to the combustion unit together with waste plastic pyrolysis oil, ① the atomization of the fuel is promoted, ② local high-temperature peaks within the combustion zone are mitigated, and ③ the combustion reaction proceeds more uniformly, thereby significantly suppressing the generation of thermal nitrogen oxides (thermal NOx) produced during the combustion process. As a result, the concentration of nitrogen oxides (NOx) in the emitted exhaust gas can be stably maintained in the range of 5 ppm to 100 ppm.

[0096] Preferably, the control unit (500) feedback controls the steam supply amount and steam temperature based on signals from a steam temperature detection means provided in the steam boiler unit, a combustion unit, or an exhaust gas measurement means provided in the exhaust gas treatment unit. That is, when the steam temperature is less than 200°C, the steam supply is restricted or the boiler output conditions are changed, and when the steam temperature exceeds 600°C, the steam supply amount or fuel injection conditions are adjusted, thereby enabling control to simultaneously satisfy combustion stability and nitrogen oxide (NOx) reduction performance. This control enables the maintenance of constant emission characteristics despite changes in the mobile installation environment of the containerized steam boiler unit.

[0097] Accordingly, the present invention enables the simultaneous achievement of combustion stabilization using high-temperature steam, promotion of complete combustion of waste plastic pyrolysis oil, substantial reduction of nitrogen oxides (NOx) (5~100 ppm), and reduced dependence on separate post-treatment facilities, thereby significantly improving the environmental compliance and commercial utility of the container-type mobile steam boiler device.

[0098] Meanwhile, the container-type steam boiler device of the present invention uses waste plastic pyrolysis oil, and since waste plastic pyrolysis oil hardens at a temperature of about 14°C, the combustion device part (200) may further include a pyrolysis oil blockage prevention means (600) configured to prevent blockage by pyrolysis oil in the pyrolysis oil supply pipe (233) of the waste plastic pyrolysis oil supply unit (230).

[0099] Specifically, in the present invention, waste plastic pyrolysis oil is pumped from a pyrolysis oil storage tank (231) by a pyrolysis oil supply pump (232) and supplied to a fuel injection unit (250) through a pyrolysis oil supply pipeline (233). Since the pyrolysis oil is produced by recycling various types of waste plastic, the quality of the pyrolysis oil is not homogeneous, and precipitates exist within the pyrolysis oil. And since the pyrolysis oil supply pipeline (233) from the pyrolysis oil storage tank (231) to the fuel injection unit (250) cannot be configured at the same height, there exists a pyrolysis oil supply pipeline longitudinal-transverse joint zone between the pyrolysis oil storage tank (231) and the fuel injection unit (250) where the longitudinal pyrolysis oil supply pipeline and the transverse pyrolysis oil supply pipeline are connected, and sediment of waste plastic pyrolysis oil accumulates in this pyrolysis oil supply pipeline longitudinal-transverse joint zone, thereby blocking the pyrolysis oil supply pipeline (233). Accordingly, the present invention may further include a pyrolysis oil blockage prevention means (600) configured to prevent blockage by pyrolysis oil in the pyrolysis oil supply pipeline (233).

[0100] The above pyrolysis oil blockage prevention means (600) is, in one embodiment, a sediment discharger (611) provided in the longitudinal and transverse joint zone of the pyrolysis oil supply pipeline (233), the pyrolysis oil interruption solenoid valve (224) disposed in the pyrolysis oil supply pipeline (233) between the pyrolysis oil storage tank (231) and the sediment discharger (611), a starting oil bypass pipeline (612) with one end connected to the starting oil supply pipeline (223) and the other end connected to the pyrolysis oil supply pipeline (233) between the pyrolysis oil interruption solenoid valve (224) and the sediment discharger (611), a bypass starting oil interruption solenoid valve (613) provided in the starting oil bypass pipeline (612), and one end connected to the air supply pipeline (272) and the other end connected to the sediment It includes an air bypass conduit (614) connected to a discharger (611), a bypass air interruption solenoid valve (615) provided in the air bypass conduit (614), an outlet solenoid valve (616) provided on the outlet side of the sediment discharger (611) in a pyrolysis oil supply conduit (233) connecting the sediment discharger (611) and the fuel injection unit (250), a discharge conduit (617) formed to communicate with the outside at the bottom of the sediment discharger (611), and a discharge interruption solenoid valve (618) provided in the discharge conduit (617).

[0101] The operation of removing sediment by the pyrolysis oil blockage prevention means (600) of this embodiment is described as follows.

[0102] With the pyrolysis oil shut-off solenoid valve (234) closed to block the supply of pyrolysis oil to the fuel injection unit (250), the bypass starting oil shut-off solenoid valve (613), the starting oil shut-off solenoid valve (224), and the outlet solenoid valve (616) are opened to supply starting oil to the pyrolysis oil supply pipeline (233) at a pressure of 2 to 12 bar for about 10 to 80 seconds. At this time, increasing the supply pressure of the starting oil can shorten the supply time, and lowering the supply pressure can lengthen the supply time. Alternatively, 5 to 500 times the internal volume of the pyrolysis oil supply pipeline (233) can be supplied. Then, the pyrolysis oil sediment removal procedure is terminated by closing the starting oil shut-off solenoid valve (224), the bypass starting oil shut-off solenoid valve (613), and the outlet solenoid valve (616).

[0103] Next, the operation of discharging foreign substances present in the above sediment discharger (611) will be explained.

[0104] With the pyrolysis oil shut-off solenoid valve (234), the bypass engine oil shut-off solenoid valve (613), and the outlet solenoid valve (616) closed and the bypass air shut-off solenoid valve (615) and the discharge shut-off solenoid valve (618) open, the air pump (271) introduces air of a predetermined pressure into the sediment discharger (611) for a predetermined time (e.g., 1 to 10 minutes), and the sediment settled at the bottom of the sediment discharger (116) is discharged to the outside through the discharge pipe (617) by the air introduced accordingly.

[0105] And when the above predetermined time has elapsed, the operation of the air pump (271) is terminated, and the bypass air shut-off solenoid valve (615) and the discharge shut-off solenoid valve (618) are closed to terminate the sediment discharge procedure.

[0106] Meanwhile, in the present invention, the pyrolysis oil blockage prevention means (600) is provided in another embodiment as shown in FIG. 5, either inside or outside the combustion device body (210) of the combustion device part (200), and includes a heating body generating pipe (621) (see FIG. 3) which is connected to receive water by connecting one end to a water supply branch pipe (243a) branched from the water supply pipe (243) of the water supply unit (240), and a heating body supply pipe (622) (see FIG. 5) which is positioned with a gap inside the pyrolysis oil supply pipe (233) (i.e., provided to surround the pyrolysis oil supply pipe (233) with a gap), one end is connected to receive a heating body heated by the heating body supply pipe (621), and the other end is configured to discharge the heat-exchanged heating body to the outside or provide it to a receiving tank that receives the heating body.

[0107] The above water supply branch pipe (243a) is equipped with a water supply branch pipe interruption solenoid valve (243b).

[0108] The above heating element generating channel (621) may be configured to be arranged in a coil or spiral shape along the outer and / or inner longitudinal direction of the combustion device body (210), or arranged in a zigzag shape along the outer and / or inner longitudinal direction of the combustion device body (210).

[0109] The heating element supply conduit (622) may be provided from the pyrolysis oil storage tank (231) to the front side of the fuel injection unit (250). In the drawing, the heating element supply conduit (622) is indicated by a dotted line to distinguish it from other conduits.

[0110] The other end of the heating element supply pipe (622) may be configured to be connected to a receiving tank for steam or water (steam or water that is heat-exchanged and discharged to the outside) that has melted the hardened pyrolysis oil in the pyrolysis oil supply pipe (233), and in this case, the receiving tank may be a water storage tank or a water supply tank.

[0111] In the pyrolysis oil blockage prevention means (600) of this other embodiment, when the waste plastic pyrolysis oil supply unit (230) includes a pyrolysis oil interruption solenoid valve (234), a pyrolysis oil flow control valve (235), and a pyrolysis oil flow measurement gauge (236), they penetrate the heating element supply pipe (622) and are exposed to the outside, and the penetration part is sealed.

[0112] In this other embodiment, the pyrolysis melt blockage prevention unit (600) has the water shut-off solenoid valve (244) and the water supply branch pipe shut-off solenoid valve (243b) opened during initial startup, and water is supplied from the water supply unit (240) and heated in the heating body generating pipe (621) to generate a heating body of high-temperature water or steam, and the heated water (high-temperature water) or steam heating body is supplied to the heating body supply pipe (622) to heat the pyrolysis oil supply pipe (233) provided therein with the heating body to melt the hardened pyrolysis oil inside the pyrolysis oil supply pipe (233), thereby ensuring that the pyrolysis oil is supplied smoothly during subsequent device operation.

[0113] After a predetermined time, the open state of the water control solenoid valve (244) is maintained to supply water to the steam boiler unit (300), and the water supply branch pipe control solenoid valve (243b) is closed to block the supply of water to the water supply branch pipe (243a).

[0114] In addition, in the present invention, the pyrolysis oil blockage prevention means (600) may be configured to include both the pyrolysis oil blockage prevention means of the above-described embodiment and the pyrolysis oil blockage prevention means of another embodiment.

[0115] Meanwhile, FIG. 6 is a diagram schematically illustrating the configuration of a mobile steam power generation equipment including a container-type steam boiler device according to the present invention. A mobile steam power generation equipment including the steam boiler device described above may be provided. The steam power generation device part of the steam power generation equipment may be provided within a container (100) in which the previously described steam boiler device (part) is provided, or it may be provided in a separate container and configured to receive steam generated from the steam boiler device (part) to generate steam.

[0116] The steam power generation unit may be configured to include a steam turbine (710), a power generator (720), an air-cooled condenser (730), a condensate tank (740), and a control panel.

[0117] In the above description of the present invention, an interrupting solenoid valve for interrupting the supply of fluid, a flow control valve for controlling the flow rate of fluid, and a flow measuring gauge for measuring the flow rate of fluid may be omitted, or one or more thereof may be optionally applied.

[0118] According to the container-type steam boiler device and mobile steam power generation equipment including the same according to the present invention as described above, by using relatively inexpensive waste plastic pyrolysis oil (waste plastic recycled oil) as one of the fuel sources for the steam boiler device or steam power generation equipment and using steam for an emulsion effect as another, it is possible to provide an eco-friendly steam boiler device and steam power generation equipment, and it has the advantage of excellent economic efficiency by minimizing the use of crude oil refined oil (kerosene) while maximizing the use of waste plastic pyrolysis oil.

[0119] In addition, the present invention is implemented as a container-type mobile unit, allowing it to be moved and installed for operation anywhere requiring small to medium-sized boiler equipment or steam power generation. Furthermore, due to the nature of utilizing waste plastic pyrolysis oil, it has the advantage of preventing blockage of the waste plastic pyrolysis oil supply pipeline caused by the hardening of the waste plastic pyrolysis oil, thereby ensuring operational stability and reliability of the equipment.

[0120] In addition, the present invention has the advantage of excellent maintenance by forming a sediment discharge section in the longitudinal and transverse joint zone or the bending zone (bend) of the waste plastic pyrolysis oil supply pipeline provided between the waste plastic pyrolysis oil tank and the pyrolysis oil injection nozzle, thereby enabling easy discharge of sediment contained in the waste plastic pyrolysis oil.

[0121] The embodiments described in this specification and the accompanying drawings are merely illustrative of a part of the technical concept included in the present invention. Accordingly, since the embodiments disclosed in this specification are intended to explain, not limit, the technical concept of the present invention, it is obvious that the scope of the technical concept of the present invention is not limited by these embodiments. All variations and specific embodiments that can be easily deduced by a person skilled in the art within the scope of the technical concept included in the specification and drawings of the present invention should be interpreted as being included within the scope of the rights of the present invention.

Claims

1. In a steam boiler device, A container equipped with a starting oil storage tank for storing starting oil, which is a fuel source for starting a steam boiler device, and a pyrolysis oil storage tank for storing plastic pyrolysis oil, which is one of the fuel sources for operating a steam boiler device; A combustion device part provided in the above container and configured to provide combustion heat to generate steam in the following steam boiler device part; A steam boiler unit configured to generate steam using the combustion heat of the combustion unit by receiving water; A fuel injection unit that supplies steam generated in the above steam boiler unit and waste plastic pyrolysis oil to the above combustion unit; and It includes a control unit that controls the operation of the combustion unit and the steam boiler unit; The temperature of the steam supplied to the combustion device is controlled within a range of 200℃ to 600℃. Container-type steam boiler unit.

2. In Paragraph 1, The above combustion device part Combustion device body having a combustion chamber; A starting oil supply unit configured to receive starting oil from the above-mentioned starting oil storage tank and supply it to the following fuel injection unit; A waste plastic pyrolysis oil supply unit configured to receive waste plastic pyrolysis oil from the above-mentioned pyrolysis oil storage tank and supply it to the following fuel injection unit; A fuel injection unit configured to receive the above-mentioned starting oil, pyrolysis oil, and steam generated in the above-mentioned steam boiler unit and to eject it within the above-mentioned combustion device body; Ignition means provided on one side of the above fuel injection unit; and Includes an air supply unit that supplies air to the fuel injection unit; Characterized by controlling the measured value of nitrogen oxides (NOx) in the exhaust gas emitted after combustion to be between 5 ppm and 100 ppm. Container-type steam boiler unit.

3. In Paragraph 2, The above steam boiler unit Boiler unit housing; A heat exchange pipe module provided in one or more stages inside the above boiler device housing; A water supply unit that supplies water to the above heat exchange pipe module; A steam discharge pipe connected to the above heat exchange pipe module and configured to supply steam generated in the heat exchange pipe module to the outside; and Characterized by including a steam supply branch line that branches off from the steam discharge pipeline and has its other end connected to the steam supply connector of the fuel injection unit to supply steam generated in the steam boiler unit. Container-type steam boiler unit.

4. In Paragraph 3, The invention is characterized by further including a pyrolysis oil blockage prevention means configured to prevent blockage caused by the hardening of pyrolysis oil in a pyrolysis oil supply pipeline through which waste plastic pyrolysis oil is supplied from the waste plastic pyrolysis oil supply unit to the fuel injection unit. Container-type steam boiler unit.

5. In Paragraph 4, The above pyrolysis oil blockage prevention means is A sediment discharger provided in the longitudinal and transverse joint zone of the pyrolysis oil supply pipeline of the above-mentioned pyrolysis oil supply pipeline; A pyrolysis oil intermittent solenoid valve placed in the pyrolysis oil supply pipeline between the above-mentioned pyrolysis oil storage tank and the sediment discharger; A starting oil bypass pipeline, one end of which is connected to a starting oil supply pipeline to which starting oil is supplied, and the other end of which is connected to a pyrolysis oil supply pipeline between the pyrolysis oil interruption solenoid valve and the sediment discharger; A bypass starting fluid interruption solenoid valve provided in the above starting fluid bypass pipeline; an air bypass pipeline, one end of which is connected to the air supply pipeline of the above air supply unit and the other end of which is connected to the above sediment discharger; A bypass air interruption solenoid valve provided in the above air bypass conduit; An outlet solenoid valve provided on the outlet side of the sediment discharger in the pyrolysis oil supply pipeline connecting the sediment discharger and the fuel injection unit; A discharge pipe formed to communicate with the outside at the bottom portion of the above-mentioned sediment discharger; and Characterized by including a discharge interruption solenoid valve provided in the above discharge pipeline. Container-type steam boiler unit.

6. In Paragraph 4, The above pyrolysis oil blockage prevention means is A heating element generating conduit provided inside or outside the body of the combustion device, with one end connected to receive water from the water supply unit; and Characterized by including a heating element supply pipe, wherein the heating element supply pipe is provided with the pyrolysis oil supply pipe inside, one end of which is connected to receive water or steam heated in the heating element supply pipe, and the other end of which is configured to discharge water or steam to the outside. Container-type steam boiler unit.

7. A container-type steam boiler device according to Claim 1; and Characterized by including a steam power generation device provided on one side inside a container included in the above-mentioned container-type steam boiler device, which generates power by receiving steam generated from the above-mentioned container-type steam boiler device. Mobile steam power generation equipment.

8. A container-type steam boiler device according to Claim 1; and A steam power generation device provided in a container, which generates power by receiving steam generated from the container-type steam boiler device through a steam supply line; characterized by including Mobile steam power generation equipment.

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