TWM596320U - Coal-fired boiler structure - Google Patents

Abstract

This creation discloses a coal-fired boiler structure, especially a coal-fired boiler structure with a fuel injection device containing at least one nozzle on the external side of the boiler. A fuel injection device of a spray head; wherein, at least one spray head is connected to one end of the fuel injection device, and the at least one spray head is connected to a delivery pipe covering a fuel pipe with an annular intake pipe and extends to the other end. The fuel pipe at the other end of the circuit is connected to the fuel inlet to input the pressurized biomass fuel from the outside, and the annular intake pipe covering the fuel pipe at the other end is connected to the air inlet to input the pressurized air from the outside By this, the pressurized biomass fuel and air are atomized and injected into the small fire zone inside the boiler combustion chamber through at least one nozzle, so that the conventional coal-fired boiler can reduce the amount of coal combustion and use biomass fuel to support combustion , To play a higher thermal energy efficiency, and at the same time meet the latest environmental protection requirements for carbon reduction and air pollution emissions, and under the improved operation of the fuel injection device of at least one nozzle of the coal-fired boiler structure, the boiler user can meet the full The environmental protection requirements of boiler operation in the world have achieved multiple economic functions of reducing carbon annually and exerting the benefits of biomass fuel combustion.

Description

Coal-fired boiler structure

This creation relates to a coal-fired boiler structure, especially a coal-fired boiler structure with a fuel injection device containing at least one nozzle on the external side of the boiler, that is, the external installation of the boiler in a small fire zone inside its combustion chamber contains at least A fuel injection device of a nozzle, the coal-fired boiler structure basically includes: a combined structure of a boiler piping room, a coal storage tank, a transmission device, a fuel injection device, a chimney and a boiler combustion chamber; wherein, At least one nozzle is connected to one end of the fuel injection device, and the at least one nozzle is connected to a delivery pipe covering the fuel pipe with an annular intake pipe and extends to the other end. The fuel pipe at the other end of the delivery pipe is connected to the inlet The fuel port is used to input pressurized biomass fuel from the outside, and the ring-shaped intake pipe covering the fuel pipe at the other end is connected to the intake port to input pressurized air from the outside; thereby, the pressurized biomass After the fuel and air are mixed and atomized, they are injected into the small fire zone inside the boiler combustion chamber through at least one nozzle through the window. The atomized biomass fuel improves the combustion efficiency of the pre-heated crushed coal in the small fire zone. The conventional coal-fired boilers can be supported by biomass fuels, which can partially replace the conventional coal-fired fuels, reduce the amount of coal used to burn coal, and exert the higher thermal energy efficiency of conventional coal-fired boilers, while achieving annual carbon reduction and air reduction. The latest environmental protection requirements for pollutant and exhaust emissions, and under the improved operation of the fuel injection device of at least one nozzle of this coal-fired boiler structure, boiler users can quickly meet the environmental protection requirements of boiler operations around the world, and achieve annual carbon reduction and production Multiple economic functions of high-quality fuel combustion benefits.

For a long time, all kinds of boilers have become important thermal energy supply equipment in the national economy. For example, electric power, machinery, metallurgy, chemical industry, textile, papermaking, food and other industries, as well as industrial and civil heating, require boilers to supply a large amount of thermal energy.

The basic principle of the boiler is to use the heat or other energy released by the combustion of fuel to heat the intermediate heating medium to a certain temperature parameter. It is used to heat water to turn it into steam. The boiler is called steam boiler, also known as steam generation. It is used to heat water to increase the temperature and convert it to hot water. It is called a hot water boiler. It is used to heat kerosene to increase the temperature and convert it to hot kerosene boiler. From the perspective of energy utilization, the boiler is an energy conversion device In the boiler, the chemical storage of primary energy (fuel) can be converted into the thermal energy contained in the combustion products (flue gas and ash) through the combustion process, and then the heat is transferred to the intermediate heating medium (such as Water, steam or kerosene), relying on it to transfer heat to the heating equipment.

However, at present, various types of boiler burner equipment commonly used in various industries still use coal as a single fuel boiler equipment. The conventional boiler burns the preheated coal that has been crushed and the composition of the coal is burned. The exhaust gas contains a variety of harmful substances, such as CO ₂ , SOx and NOx, etc., which not only cause the greenhouse effect, global temperature rise, accelerated melting of polar ice sheets, the destruction of animal and plant ecology, and the accumulated air pollution directly affects human health; With the implementation of environmental protection requirements for boiler operation in the world, to improve the air pollution caused by the operation of coal-fired boilers for a long time, a major change must be made in the operation and selection of boiler fuel.

In view of the world's environmental protection trends and the urgent problem that the above-mentioned knowledge has existed for a long time and must be improved in the near future, this creator has gathered many years of development experience to develop a coal-fired boiler structure that can not only significantly reduce conventional coal-fired boilers immediately The primary issue of carbon emissions from combustion is to use biomass-fueled auxiliary combustion to reduce the amount of coal used in the boiler's only combustion, to play the multiple economic functions of the conventional coal-fired boilers with higher combustion efficiency, and to achieve annual carbon reduction and air pollution. The latest environmental requirements for emissions, and under the improved operation of the fuel injection device of at least one nozzle of this coal-fired boiler structure, boiler users can meet the environmental protection requirements of the world's boiler operations, which is the motivation for the creators to create.

Based on the above purpose, this creation relates to a coal-fired boiler structure, especially a coal-fired boiler structure with a fuel injection device including at least one nozzle on the external side of the boiler, that is, a boiler in a small fire zone inside its combustion chamber A fuel injection device including at least one spray head is provided externally; the coal-fired boiler structure basically includes a combination of a boiler piping room, a coal storage tank, a transmission device, a fuel injection device, a chimney and a boiler combustion chamber Structure; wherein, at one end of the fuel injection device is connected to at least one nozzle, the at least one nozzle is connected to the delivery line of the fuel pipe covered with an annular intake pipe and extends to the other end, the fuel at the other end of the delivery line The pipe is connected to the fuel inlet to input the pressurized biomass fuel from the outside, and the ring-shaped air inlet pipe covering the fuel pipe at the other end is connected to the air inlet to input the pressurized air from the outside; After the compressed biomass fuel is mixed with air under high pressure and atomized, it is injected into the small fire zone inside the boiler combustion chamber through at least one nozzle through the window outside the boiler combustion chamber. The atomized biomass fuel is raised in the small fire zone The combustion efficiency of the pre-heated crushed coal lump allows conventional coal-fired boilers to be supported by biomass fuels, which can partially replace conventional coal-fired fuels, reduce the boiler's use of only burning coal, and give play to the higher thermal energy of conventional coal-fired boilers. Benefits, and at the same time meet the latest environmental protection requirements of reducing carbon emissions and reducing air pollution and exhaust emissions year by year, and under the improved operation of the fuel injection device of at least one nozzle of this coal-fired boiler structure, boiler users can quickly reach the environmental protection of boiler operations worldwide The requirement also achieves multiple economic functions of reducing carbon year by year and exerting the benefits of biomass fuel combustion.

The structure of a coal-fired boiler disclosed in this creation is that the burning coal fuel is introduced from the coal storage tank at the back end of the boiler. The amount of use is adjusted at any time according to the operating needs. The coal fuel is crushed and heated... It falls to the conveyor crawler of the transmission device, and moves forward in the boiler combustion chamber in sequence according to the transmission speed, until the other end of the conveyor crawler, the conveyor crawler of the transmission device repeatedly introduces coal fuel.

In order to make a kind of coal-fired boiler structure of this creation play the role of coal-fired boilers in compliance with the world's environmental protection trends, and from the actual coal-fired boiler operations, biomass fuels can be used to support combustion, and can partially replace conventional coal-fired fuels, reducing boilers only The amount of coal burned is used to give play to the higher thermal energy efficiency of conventional coal-fired boilers, while at the same time meeting the latest environmental protection requirements for annual carbon reduction and air pollution emissions; this creation is a coal-fired boiler structure, especially a coal-fired boiler structure A fuel injection device including at least one spray head is provided outside the boiler in a small fire zone inside the combustion chamber of the boiler. The fuel injection device including at least one spray head is provided with more than one spray head at one end thereof, and the more than one spray head is a delivery pipeline At the front end, the nozzle is connected to the delivery pipe covered by the annular intake pipe and extends to the other end. That is, the center of the aforementioned delivery pipe is the fuel pipe. The annular intake pipe covers the fuel pipe and the annular inlet The gas pipe is a cylindrical column pipe around the fuel pipe; furthermore, the fuel pipe and the annular intake pipe at the other end of the delivery pipe are connected to the oil inlet and the air inlet respectively. Pressurized biomass fuel, and the air inlet is supplied with pressurized air from the outside, so that when the coal-fired boiler is operated, more than one nozzle at the front of the delivery pipeline mixes and pressurizes the compressed biomass fuel and air at high pressure. The at least one sprinkler passes through the window outside the boiler combustion chamber and is injected into the small fire zone inside the boiler combustion chamber, so as to achieve the carbon reduction of the coal-fired boiler and the reduction of air pollution emissions, and reduce the damage of the industry to the global environment.

As mentioned above, this creation discloses a coal-fired boiler structure, especially a coal-fired boiler structure with a fuel injection device including at least one nozzle on the external side of the boiler, that is, a boiler in a small fire zone inside its combustion chamber A fuel injection device including at least one nozzle is provided externally; the structure of the coal-fired boiler basically consists of: a boiler piping room, a coal storage tank, a transmission device, a fuel injection device, a chimney and a boiler combustion chamber Combined structure; wherein, one end of the fuel injection device is connected to at least one spray head, the at least one spray head is connected to the delivery pipe covering the fuel pipe with an annular intake pipe and extends to the other end, the other end of the delivery pipe The fuel pipe is connected to the fuel inlet to input the pressurized biomass fuel from the outside, and the annular intake pipe covering the fuel pipe at the other end is connected to the air inlet to input the pressurized air from the outside; thereby, The pressurized biomass fuel is mixed with air under high pressure and atomized, and then injected into the small fire zone inside the boiler combustion chamber through at least one nozzle through the window outside the boiler combustion chamber. The atomized biomass fuel increases in the small fire The combustion efficiency of the pre-heated crushed coal in the district allows conventional coal-fired boilers to be supported by biomass fuels, which can partially replace conventional coal-fired fuels, reduce the amount of coal used by the boiler to burn coal, and play a higher role in conventional coal-fired boilers. Thermal energy efficiency, while meeting the latest environmental protection requirements of reducing carbon emissions and air pollution emissions year by year, and under the improved operation of the fuel injection device of at least one nozzle of this coal-fired boiler structure, boiler users can quickly achieve compliance with boiler operations around the world The requirements of environmental protection meet the multiple economic functions of reducing carbon annually and exerting the benefits of biomass fuel combustion.

In order for your review committee to have a better understanding and understanding of the purpose, shape, characteristics of the construction device and its function of the creation, the examples are given in conjunction with the drawings, and the detailed description is as follows:

In order to better understand the characteristics, content and advantages of this creation and the achievable effects, the creation is combined with the drawings, and the expressions of the embodiments are described in detail below. The purpose of the drawings used is only For the purpose of illustration and supplementary instructions, it should not be based on the scale and configuration relationship of the attached drawings, and thus limit the scope of the rights of this creation in actual implementation.

The advantages, features and technical methods of this creation will be described in more detail with reference to the exemplary embodiments and the accompanying drawings to make it easier to understand. For those of ordinary skill in the art, the provided embodiments will enable This disclosure more thoroughly and comprehensively and completely conveys the scope of this creation.

Please refer to Figures 1 to 3; Figure 1 is a schematic diagram of the basic structure of the creation; Figure 2 is a schematic diagram of a partial cross-sectional mechanism of at least one nozzle 153 of the fuel injection device 15 of the creation; Figure 3 is the creation of the A schematic diagram of another partial cross-sectional mechanism of the fuel injection device 15; this creation relates to a coal-fired boiler structure 10, in particular a coal-fired boiler structure 10 is provided with a fuel injection device 15 including at least one nozzle 153 on the external side of the boiler, namely : A fuel injection device 15 including at least one nozzle 153 is provided outside the boiler relative to the small fire zone 161 of the boiler combustion chamber 16; the coal-fired boiler structure 10 basically includes: a boiler piping chamber 12, a coal storage tank 13. The combined structure of a transmission device 14, a fuel injection device 15, a chimney 11 and a boiler combustion chamber 16; wherein, one end of the fuel injection device 15 is connected to at least one nozzle 153, and the at least one nozzle 153 is connected to The annular intake pipe 152 covers the delivery pipe 150 of the fuel pipe 151 and extends to the other end. The fuel pipe 151 at the other end of the delivery pipe 150 is connected to the fuel inlet 1511 to input pressurized biomass fuel from the outside , And the annular intake pipe 152 covering the fuel pipe 151 at the other end is connected to the intake port 1521 to input pressurized air from the outside; by this, the pressurized biomass fuel and air are mixed and atomized at high pressure , Through at least one nozzle 153 through the outer window 155 of the boiler combustion chamber 16 and injected into the small fire zone 161 inside the boiler combustion chamber 16, the atomized biomass fuel is preheated in the small fire zone 161 (not shown) ) The burning efficiency of the broken coal lump enables conventional coal-fired boilers to be supported by biomass fuels, which can partially replace conventional coal-fired fuels, reduce the amount of coal used by boilers to burn coal only, and give play to the higher thermal energy efficiency of conventional coal-fired boilers. At the same time, it meets the latest environmental protection requirements of reducing carbon emissions and reducing air pollution and exhaust emissions year by year. With the improved operation of the fuel injection device 15 of at least one nozzle 153 of the coal-fired boiler structure 10 of this creation, boiler users can quickly achieve compliance with boiler operations worldwide. The requirements of environmental protection meet the multiple economic functions of reducing carbon annually and exerting the benefits of biomass fuel combustion.

In order for this creation to play the role of coal-fired boilers and conform to the world's environmental protection trends, among them, a coal-fired boiler structure 10 disclosed in this creation, the burning coal fuel is introduced from the coal storage tank 13 at the back end of the boiler. The amount of usage can be adjusted at any time according to the operating requirements. The coal fuel is crushed, heated... and other pre-operations (not shown), and finally falls on the conveyor crawler 141 that is linked to the transmission 14. The conveyor crawler 141 carries the coal fuel And move forward in the boiler combustion chamber 16 in order according to the conveying speed until the other end of the conveying crawler 141 is dumped, the conveying crawler 141 of the transmission 14 continues to introduce new crushed and heated coal fuel; and, the aforementioned so-called small fire Zone 161 refers to the coal fuel is introduced from the coal storage tank 13 at the rear end of the boiler, passes through the conveyor track 141 of the transmission device 14 and moves in the boiler combustion chamber 16 according to the conveyor speed. Depending on the structure of the chamber, it is generally about 3 to 5 meters to move forward within the range of the combustion space.

In addition, in order to make a kind of coal-fired boiler structure created in accordance with the requirements of the world's coal-fired boiler environmental protection trends, and from the actual coal-fired boiler operations, biomass fuels can be used to support combustion, and can partially replace conventional coal-based fuels, reducing The boiler only burns the amount of coal used, giving play to the higher thermal energy efficiency of conventional coal-fired boilers, and at the same time meeting the latest environmental protection requirements for reducing carbon emissions and reducing air pollution and exhaust emissions year by year, so that the exhaust gas discharged through the chimney can greatly reduce carbon dioxide (CO ₂ ) In addition to emissions, it also significantly reduces nitrogen oxide (NOx) exhaust emissions; further, by improving the oil quality of combustion-promoting biomass fuels, the reduction of coal carbon can also reduce sulfur oxide (SOx) exhaust emissions. This creation is a coal-fired boiler structure 10, in particular, a coal-fired boiler structure 10 is provided with a fuel injection device 15 including at least one spray head 153 outside the boiler in a small fire zone 161 inside the boiler combustion chamber 16 of the coal-fired boiler structure 10, which includes at least one spray head The fuel injection device 15 of 153 is provided with more than one nozzle 153 at one end thereof. The more than one nozzle 153 is the front end of the delivery pipe 150. The nozzle 153 is connected to a delivery tube covering the fuel pipe 151 with an annular intake pipe 152 The road 150 extends to the other end, that is, the center of the aforementioned delivery line 150 is the fuel pipe 151, the annular intake pipe 152 covers the fuel pipe 151, and the annular intake pipe 152 is a peripheral cylindrical annular pipe of the fuel pipe 151; Furthermore, the fuel pipe 151 and the annular intake pipe 152 at the other end of the delivery pipe 150 are connected to the oil inlet 1511 and the air inlet 1521 respectively. The oil inlet 1511 inputs pressurized biomass fuel from the outside. The air inlet 1521 is supplied with pressurized air from the outside, so that when the coal-fired boiler is operated, more than one nozzle 153 at the front end of the delivery pipeline 150 mixes and pressurizes the pressurized biomass fuel and air at high pressure, and then passes through the A nozzle 153 passes through the corresponding opening window 155 on the outside of the boiler combustion chamber 16 and injects atomized fuel from the oil injection port 154 to the small fire zone 161 inside the boiler combustion chamber 16 to achieve the reduction of carbon and air in coal-fired boilers Pollution emissions, reduce the destruction of industry to the global environment.

In summary, the present invention discloses a coal-fired boiler structure 10, in particular, a coal-fired boiler structure 10 is provided with a fuel injection device 15 including at least one nozzle 153 on the external side of the boiler, that is, relative to its boiler combustion chamber 16 A fuel injection device 15 including at least one nozzle 153 is provided outside the boiler of the small fire zone 161; the coal-fired boiler structure 10 of the present invention basically includes: a boiler piping chamber 12, a coal storage tank 13, and a transmission device 14, A combined structure of a fuel injection device 15, a chimney 11 and a boiler combustion chamber 16; wherein, one end of the fuel injection device 15 is connected with at least one spray head 153, and the at least one spray head 153 is connected with a ring-shaped intake pipe 152 package The delivery pipe 150 covering the fuel pipe 151 extends to the other end. The fuel pipe 151 at the other end of the delivery pipe 150 is connected to the fuel inlet 1511, and the pressurized biomass fuel is externally controlled by the fuel control lever 1512, and The annular intake pipe 152 covering the other end of the fuel pipe 151 is connected to the intake port 1521, and the intake control lever 1522 is used to control the input of pressurized air from the outside; thereby, the pressurized biomass fuel and air are mixed at high pressure, After atomization, the atomized fuel is injected from the fuel injection port 154 to the small fire zone 161 inside the boiler combustion chamber 16 through at least one nozzle 153 through the corresponding window 155 on the outer side of the boiler combustion chamber 16 and the mist Biomass fuel improves the combustion efficiency of pre-heated crushed coal in small fire areas, so that conventional coal-fired boilers can use biomass fuel to assist combustion, which can partially replace conventional coal-fired fuel and reduce the amount of coal used by the boiler to burn coal only , To take advantage of the higher thermal energy efficiency of conventional coal-fired boilers, and at the same time meet the latest environmental protection requirements for carbon reduction and air pollution emissions year by year, and under the improved operation of the fuel injection device 15 of at least one nozzle 153 of the original coal-fired boiler structure 10 , Boiler users can quickly achieve the multiple economic functions that meet the environmental protection requirements of coal-fired boiler operations around the world, and achieve carbon emission reduction and play the benefits of biomass fuel combustion.

The above-mentioned embodiments are only to illustrate the technical ideas and characteristics of this creation, and its purpose is to enable those who are familiar with this skill to understand the content of this creation and implement it accordingly, but should not limit the scope of the patent of this creation, That is to say, the equal changes or modifications made by Dafan according to the technical creativity disclosed in this creation should still be covered by the patent scope of this creation.

10: Coal-fired boiler structure 11: Chimney 12: Boiler piping room 13: coal storage tank 14: Transmission 15: Fuel injection device 16: boiler combustion chamber 141: conveyor track 150: delivery pipeline 151: Fuel pipe 152: annular intake pipe 153: sprinkler 154: fuel injection port 155: Windows 161: Small fire area 1511: Oil inlet 1512: Fuel control lever 1521: Air inlet 1522: Intake control lever

Figure 1 is a schematic diagram of the basic structure of this creation; Figure 2 is a schematic diagram of a partial cross-sectional mechanism of at least one nozzle of the fuel injection device of this creation; Figure 3 is a schematic diagram of another partial cross-sectional mechanism of the created fuel injection device.

10: Coal-fired boiler structure

11: Chimney

12: Boiler piping room

13: coal storage tank

14: Transmission

15: Fuel injection device

16: boiler combustion chamber

161: Small fire area

141: conveyor track

150: delivery pipeline

151: Fuel pipe

152: annular intake pipe

153: sprinkler

154: fuel injection port

155: Windows

Claims (3)

A coal-fired boiler structure basically includes: 1. Boiler piping room; 1. Coal storage tank: coal fuel is introduced into the coal storage tank from the back end of the boiler; A transmission device: the transmission device is linked with a conveyor crawler which carries the coal fuel introduced from the coal storage tank and moves forward in sequence according to the conveyor speed until the other end of the conveyor crawler is dumped. Conveyor crawlers continue to introduce new coal fuel; A boiler combustion chamber; the aforementioned coal fuel carried by the conveyor crawler passes through the boiler combustion chamber, and the conveyor crawler initially advances in the boiler combustion chamber and moves a few meters of the combustion space range is called a small fire zone; A fuel injection device: the fuel injection device is provided on the outer side of the boiler in the small fire zone of the boiler combustion chamber, one end of the fuel injection device includes at least one nozzle, the at least one nozzle is connected with a ring-shaped intake pipe to cover the fuel The delivery pipe of the pipe extends to the other end. The fuel pipe at the other end of the delivery pipe is connected to the fuel inlet and controls the input of the biomass fuel pressurized from the outside with a fuel control rod. The other end covers the fuel pipe. The ring-shaped air inlet pipe is connected to the air inlet, and the pressurized air input from the outside is controlled by an air inlet control rod; and, the at least one spray head passes through the external side of the boiler in the small fire zone of the boiler combustion chamber and is injected into the pressurized air Biofuel to the small fire area; and A chimney: the chimney exhausts the exhaust gas produced by the boiler combustion chamber. A coal-fired boiler structure as described in item 1 of the patent application scope; wherein, a window is provided corresponding to the outer side of the boiler relative to the small fire zone for at least one nozzle of the fuel injection device to pass into the boiler for combustion Those in the small fire area. A coal-fired boiler structure as described in item 1 of the patent application scope; wherein, after the burning coal fuel is introduced from the coal storage tank at the rear end of the boiler, the coal fuel is crushed, heated, etc. It falls on the conveyor crawler linked to the transmission.

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