Boiler ignition oil control device of thermal power plant

Abstract

The invention provides a thermal power plant boiler ignition oil control device which comprises an oil tank, a splitter plate and an oil control assembly, an oil storage cavity is formed in the oil tank, and the oil storage cavity is provided with an oil inlet and an oil outlet; the splitter plate is arranged in the oil storage cavity, the splitter plate is in an umbrella shape, and a plurality of splitter holes are formed in the splitter plate at equal intervals; the oil control assembly comprises an oil spray nozzle located at the oil outlet, a plugging head and an elastic piece are arranged in the oil spray nozzle, one end of the elastic piece is connected with the plugging head, the other end of the elastic piece is connected with the oil spray nozzle, and the plugging head is used for plugging or opening the oil outlet. According to the boiler ignition oil control device for the thermal power plant, accurate control and efficient utilization of fuel oil can be achieved, and the ignition stability and the combustion efficiency of the boiler are improved.

Description

Technical Field

[0001] The invention relates to the technical field of boiler oil injection, and in particular to an ignition oil control device for a boiler in a thermal power plant. Background Art

[0002] In the field of thermal power generation, oil guns are usually needed to start and maintain stable combustion of pulverized coal. The oil gun can spray high-pressure heavy oil to form atomized fuel, providing the necessary initial heat and combustion conditions for the pulverized coal, ensuring that the pulverized coal ignites smoothly and maintains stable combustion. However, different types of pulverized coal have different requirements for the type of heavy oil and injection pressure, which makes it difficult for operators to accurately judge and adjust the injection pressure based on experience alone. It is often the case that the pulverized coal cannot be ignited or the ignition is too large, which not only affects the stable combustion of the pulverized coal, but also causes serious waste of heavy oil. Summary of the invention

[0003] The present invention is based on the inventor's discovery and understanding of the following facts and problems:

[0004] In thermal power plants, oil guns atomize heavy oil through high-pressure injection. These tiny oil droplets can quickly mix with oxygen in the air to form a combustible mixed gas, providing the necessary initial heat and combustion conditions for coal powder. In practical applications, different types of coal powder have different requirements for combustion-supporting heavy oil due to their different physical and chemical properties. This includes but is not limited to key parameters such as the selection of heavy oil types and the adjustment of injection pressure. If the selected heavy oil does not match the combustion characteristics of coal powder, it will not only lead to poor combustion-supporting effect, but may also cause problems such as incomplete combustion and increased emission of pollutants. On the other hand, the adjustment of injection pressure is also crucial. Excessive injection pressure may cause excessive fuel atomization and form an excessively large flame, which not only wastes heavy oil resources, but also may damage the combustion equipment; while too low injection pressure may cause poor fuel atomization and affect the combustion-supporting effect.

[0005] To this end, an embodiment of the present invention provides an ignition and oil control device for a boiler in a thermal power plant, which includes an oil tank, a diverter plate and an oil control assembly, wherein an oil storage chamber is provided in the oil tank, and the oil storage chamber has an oil inlet and an oil outlet; the diverter plate is provided in the oil storage chamber, the diverter plate is configured in an umbrella shape, and a plurality of diverter holes are equidistantly provided on the diverter plate; the oil control assembly includes an oil nozzle located at the oil outlet, a plugging head and an elastic member are provided in the oil nozzle, one end of the elastic member is connected to the plugging head, and the other end of the elastic member is connected to the oil nozzle, and the plugging head is used to plug or open the oil outlet.

[0006] In summary, the ignition and oil control device for a thermal power plant boiler provided in an embodiment of the present invention can ensure that the fuel at the fuel injector is sprayed at a stable pressure through a diverter plate and an oil control assembly, thereby achieving precise control and efficient use of the fuel, and improving boiler ignition stability and combustion efficiency.

[0007] In some embodiments, it also includes an adjustable telescopic rod and a driver, wherein the two ends of the adjustable telescopic rod are correspondingly connected to the diverter plate and the oil tank so that the diverter plate can move between the oil inlet and the oil outlet, and the output end of the driver is transmission-connected to the adjustable telescopic rod to drive the adjustable telescopic rod and the diverter plate to rotate.

[0008] In some embodiments, the adjustable telescopic rod is configured as a hydraulic rod;

[0009] And / or, a sealing rubber ring is provided on the edge of the diverter plate;

[0010] And / or, the diversion hole is configured to be triangular.

[0011] In some embodiments, an explosion-proof layer is provided on the inner wall of the oil storage cavity.

[0012] In some embodiments, a long round belly-shaped movable cavity is provided in the fuel injector, and the plugging head is movably disposed in the movable cavity.

[0013] In some embodiments, the plugging head has a first shaft segment and a second shaft segment connected to each other, the outer diameter of the first shaft segment is smaller than the outer diameter of the second shaft segment, the first shaft segment can be movably inserted into the oil outlet, the second shaft segment is connected to the elastic member, and a sealing ring is sleeved on the first shaft segment.

[0014] In some embodiments, the oil control assembly also includes a magnetic block and a magnetic adsorption component, the elastic component abuts against the magnetic block, the magnetic block is movable in the active cavity, the magnetic adsorption component is arranged on the outside of the fuel injector, and the magnetic adsorption component drives the magnetic block to move along the outer wall of the fuel injector to adjust the deformation of the elastic component.

[0015] In some embodiments, the oil control assembly further includes a pressure monitor, which is disposed in the oil storage cavity and is used to monitor the oil pressure in the oil storage cavity.

[0016] In some embodiments, the ignition and oil control device for a boiler in a thermal power plant further includes a bracket having a receiving groove, the receiving groove being adapted to the outer shape of the oil tank, and the oil tank being arranged in the receiving groove.

[0017] In some embodiments, the ignition and oil control device for the boiler of a thermal power plant further includes a filter, and the filter is arranged at the oil inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic structural diagram of a boiler ignition and oil control device for a thermal power plant provided by an embodiment of the present invention.

[0019] Figure 2 It is a structural schematic diagram of a boiler ignition and oil control device for a thermal power plant provided by another embodiment of the present invention.

[0020] Reference numerals:

[0021] 10. Oil tank; 11. Oil storage chamber; 111. Oil inlet; 112. Oil outlet; 12. Explosion-proof layer; 13. Oil inlet pipe;

[0022] 20. Diverter plate; 21. Diverter hole; 22. Sealing rubber ring;

[0023] 30. Oil control assembly; 31. Oil injection nozzle; 311. Active cavity; 312. Slide groove; 32. Blocking head; 321. First shaft section; 322. Second shaft section; 323. Sealing ring; 33. Elastic member; 34. Magnetic block; 341. Sliding block; 35. Magnetic adsorption member;

[0024] 41. Adjustable telescopic rod; 42. Driver; 43. Pressure monitor; 44. Filter; 45. Bracket; 451. Receiving tank. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0026] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an ignition and oil control device for a boiler in a thermal power plant, which includes an oil tank 10, a diverter plate 20 and an oil control assembly 30. An oil storage chamber 11 is provided in the oil tank 10, and the oil storage chamber 11 has an oil inlet 111 and an oil outlet 112. The diverter plate 20 is arranged in the oil storage chamber 11, and the diverter plate 20 is arranged in an umbrella shape. A plurality of diverter holes 21 are equidistantly provided on the diverter plate 20. The oil control assembly 30 includes an oil nozzle 31 located at the oil outlet 112, and a plugging head 32 and an elastic member 33 are provided in the oil nozzle 31. One end of the elastic member 33 is connected to the plugging head 32, and the other end of the elastic member 33 is connected to the oil nozzle 31. The plugging head 32 is used to plug or open the oil outlet 112.

[0027] Specifically, the diverter plate 20 is set in an umbrella shape, which can effectively increase the contact area between the fuel and the diverter plate 20, so that the fuel can be more fully dispersed and guided when flowing through. The multiple diverter holes 21 evenly distributed on the diverter plate 20 further refine the fuel into countless small streams, which are evenly distributed in the oil storage cavity 11 and slowly flow to the oil outlet 112. This process not only greatly improves the uniformity and fineness of the fuel, but also lays a solid foundation for subsequent atomization and combustion.

[0028] Moreover, as a key component for controlling the fuel, the plugging head 32 can be pushed by the fuel to move when the fuel pressure in the fuel storage chamber 11 reaches a preset value, thereby opening the fuel outlet 112 and allowing the fuel to enter the boiler combustion chamber through the fuel injector 31. The elastic member 33 ensures that the plugging head 32 can automatically reset when the fuel pressure decreases, plugging the fuel outlet 112 and realizing precise control of the fuel. This design not only ensures the timeliness and accuracy of fuel injection, but also avoids fuel waste and pollution to a large extent.

[0029] That is to say, when the fuel pressure in the fuel storage chamber 11 is greater than the preset pressure, the plugging head 32 will be quickly pushed to open the fuel outlet 112. At this time, the fuel finely dispersed and guided by the diverter plate 20 will be sprayed into the boiler combustion chamber in a more delicate and uniform state through the fuel injection nozzle 31. This not only greatly improves the atomization effect of the fuel, but also enables the fuel to be more fully mixed with the air and burned, thereby significantly improving the combustion efficiency and fuel utilization. In this embodiment, the elastic member 33 can be set as a spring.

[0030] In summary, the ignition and oil control device for a thermal power plant boiler provided in an embodiment of the present invention can ensure that the fuel at the fuel injector 31 is sprayed at a stable pressure through the diverter plate 20 and the oil control assembly 30, thereby achieving precise control and efficient use of the fuel and improving the ignition stability and combustion efficiency of the boiler.

[0031] like Figure 2 As shown, in some embodiments, the ignition and oil control device for the boiler of a thermal power plant also includes an adjustable telescopic rod 41 and a driver 42. The two ends of the adjustable telescopic rod 41 are correspondingly connected to the diverter plate 20 and the oil tank 10, so that the diverter plate 20 can be moved between the oil inlet 111 and the oil outlet 112. The output end of the driver 42 is transmission-connected to the adjustable telescopic rod 41 to drive the adjustable telescopic rod 41 and the diverter plate 20 to rotate.

[0032] The adjustable telescopic rod 41 can drive the manifold plate 20 to move in the oil storage chamber 11, so that the manifold plate 20 is adjustable in spatial position, so that the position of the manifold plate 20 can be dynamically adjusted according to different operating requirements and fuel conditions, thereby optimizing the flow path and distribution state of the fuel. The driver 42 can drive the manifold plate 20 to rotate through the adjustable telescopic rod 41, so that the oil in the oil storage chamber 11 is mixed more evenly.

[0033] Furthermore, the adjustable telescopic rod 41, driven by the driver 42, can drive the diverter plate 20 to move in the oil storage chamber 11. This action is equivalent to exerting a squeezing effect on the oil, so that the oil is effectively squeezed from the oil inlet 111 to the oil outlet 112. In this process, the oil pressure in the oil storage chamber 11 is significantly increased, providing a more stable and sufficient pressure source for subsequent fuel injection. At the same time, since the diverter plate 20 continuously changes the flow direction and speed of the oil during the movement, this further promotes the mixing uniformity of the oil, so that the fuel can be better pre-mixed with the air before combustion, thereby improving the combustion efficiency and the release of heat energy.

[0034] Furthermore, the adjustable telescopic rod 41 can be set as a hydraulic rod. The hydraulic rod not only has excellent load-bearing capacity and stability, but also can maintain stable performance in extreme environments, and has the advantages of easy control and maintenance. By adjusting the pressure and flow of the hydraulic system, the extension and retraction speed of the hydraulic rod can be accurately controlled, thereby ensuring that the movement of the diverter plate 20 in the oil storage chamber 11 is both smooth and accurate. In this embodiment, the driver 42 can be set as a motor or a hydraulic motor or other components.

[0035] Furthermore, a sealing rubber ring 22 is provided at the edge of the manifold 20, wherein the sealing rubber ring 22 can act as a buffer layer between the manifold 20 and the wall of the oil tank 10, reducing direct contact and friction between the two. In this way, even if the manifold 20 collides or rubs against the wall of the oil tank 10 during movement, the sealing rubber ring 22 can still play a good protective role, thereby extending the service life of the manifold 20 and the wall of the oil tank 10.

[0036] In addition, the sealing rubber ring 22 can also absorb and disperse the vibration and impact force generated by the movement of the diverter plate 20 to a certain extent, making the overall operation of the device more stable and reliable.

[0037] like Figure 1 and Figure 2As shown, in some embodiments, the diverter hole 21 is set to be triangular. The triangular diverter hole 21 can produce a more complex flow field and turbulence effect during the flow of fuel. This effect helps to disperse the fuel more finely to every corner of the fuel storage cavity 11, so that the fuel can be better mixed with the air during the flow process, providing a more adequate preparation for the subsequent combustion process.

[0038] In addition, the triangular flow diversion hole 21 also has a certain guiding effect. When the fuel flows out of the flow diversion hole 21, its flow direction will be guided by the edge of the triangle, thereby forming a more uniform and stable fuel flow field. This feature helps to reduce the energy loss and eddy current phenomenon of the fuel during the flow process, and improves the utilization efficiency of the fuel.

[0039] like Figure 1 and Figure 2 As shown, in some embodiments, the inner wall of the oil storage chamber 11 is provided with an explosion-proof layer 12, so as to effectively resist the explosion impact caused by the combustion of fuel or abnormal pressure increase. Even in the most unfavorable situation, such as the fuel suddenly reacts violently or the pressure rises sharply for some reason, the explosion-proof layer 12 can absorb and disperse most of the explosion energy, thereby protecting the oil storage chamber 11 and the surrounding equipment from serious damage.

[0040] like Figure 1 As shown, in some embodiments, a long round belly-shaped active cavity 311 is provided in the fuel injector 31, and the plugging head 32 is movably disposed in the active cavity 311. It can be imagined that during the fuel injection process, the active cavity 311 can be fine-tuned according to the flow rate and pressure changes of the fuel, so as to maintain the best injection state. This feature enables the fuel injector 31 to better adapt to different operating conditions and fuel types, and provides strong support for efficient and stable combustion of thermal power plants.

[0041] Furthermore, the plugging head 32 has a first shaft section 321 and a second shaft section 322 connected to each other, the outer diameter of the first shaft section 321 is smaller than the outer diameter of the second shaft section 322, the first shaft section 321 can be movably inserted into the oil outlet 112, the second shaft section 322 is connected to the elastic member 33, and a sealing ring 323 is sleeved on the first shaft section 321 to effectively prevent the fuel from leaking from the gap between the plugging head 32 and the oil outlet 112 during the injection process. This design not only improves the sealing performance of the fuel injector 31, but also ensures that the fuel can flow out in a continuous and stable manner.

[0042] like Figure 2As shown, in some embodiments, the oil control assembly 30 also includes a magnetic block 34 and a magnetic adsorption component 35, the elastic component 33 abuts between the magnetic block 34 and the sealing head 32, the magnetic block 34 is movable in the active cavity 311, and the magnetic adsorption component 35 is arranged on the outside of the fuel injector 31. The magnetic adsorption component 35 drives the magnetic block 34 to move along the outer wall of the fuel injector 31 to adjust the deformation of the elastic component 33.

[0043] Specifically, the magnetic adsorption member 35 can generate a magnetic force of mutual attraction with the magnetic block 34, thereby realizing remote control of the magnetic block 34. In other words, the position of the magnetic block 34 in the active cavity 311 can be easily changed by adjusting the position or strength of the magnetic adsorption member 35, thereby adjusting the deformation of the elastic member 33, so that the oil control component 30 can flexibly adjust the position and strength of the plugging head 32 according to actual needs, thereby realizing precise control of the fuel injection amount.

[0044] Furthermore, a slide groove 312 is provided in the fuel injection nozzle 31 , and a slider 341 matching the slide groove 312 is provided on the magnetic block 34 to limit the moving distance of the magnetic block 34 .

[0045] Furthermore, the oil control component 30 also includes a pressure monitor 43, which is arranged in the oil storage chamber 11. The pressure monitor 43 is used to monitor the oil pressure in the oil storage chamber 11, so as to facilitate the control of the position of the magnetic block 34 and adjust the oil pressure sprayed at the control nozzle 31.

[0046] In some embodiments, the ignition and oil control device for a thermal power generation boiler further includes a filter 44, which is disposed at the oil inlet 111, which not only improves the purity and quality of the fuel, but also helps to extend the service life of the boiler ignition and oil control device. By preventing impurities from entering the fuel tank 10 and the fuel injector 31, the filter 44 reduces wear and blockage inside the equipment, and reduces the cost of maintenance and replacement. At the same time, pure fuel also helps to improve the combustion efficiency and thermal efficiency of the boiler, thereby reducing energy consumption and emissions. In this embodiment, the ignition and oil control device for a thermal power generation boiler further includes an oil inlet pipe 13, which connects an external oil source and the oil inlet 111 to form a closed fuel delivery channel.

[0047] In some embodiments, the boiler ignition and oil control device of a thermal power plant further includes a bracket 45, the bracket 45 has a receiving groove 451, the receiving groove 451 is adapted to the external shape of the oil tank 10, and the oil tank 10 is arranged in the receiving groove 451, so as to withstand various forces and vibrations generated by the boiler ignition and oil control device during operation. At the same time, the bracket 45 component also has a certain corrosion resistance, and can maintain long-term stable operation in a harsh operating environment.

[0048] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A boiler ignition oil control device for a thermal power plant, characterized in that: The invention comprises an oil tank (10), a flow divider plate (20) and an oil control assembly (30); the oil tank (10) is provided with an oil storage chamber (11), the oil storage chamber (11) having an oil inlet (111) and an oil outlet (112); the flow divider plate (20) is arranged in the oil storage chamber (11), the flow divider plate (20) is arranged in an umbrella shape, and a plurality of flow divider holes (21) are equidistantly arranged on the flow divider plate (20); the oil control assembly (30) comprises an oil injection nozzle (31) located at the oil outlet (112), a plugging head (32) and an elastic member (33) are arranged in the oil injection nozzle (31), one end of the elastic member (33) is connected to the plugging head (32), and the other end of the elastic member (33) is connected to the oil injection nozzle (31), and the plugging head (32) is used to plug or open the oil outlet (112).

2. The ignition and oil control device for a boiler in a thermal power plant according to claim 1, characterized in that: It also includes an adjustable telescopic rod (41) and a driver (42), wherein two ends of the adjustable telescopic rod (41) are correspondingly connected to the diverter plate (20) and the oil tank (10), so that the diverter plate (20) can move between the oil inlet (111) and the oil outlet (112), and the output end of the driver (42) is transmission-connected to the adjustable telescopic rod (41) to drive the adjustable telescopic rod (41) and the diverter plate (20) to rotate.

3. The ignition and oil control device for a boiler in a thermal power plant according to claim 2, characterized in that: The adjustable telescopic rod (41) is configured as a hydraulic rod; And / or, a sealing rubber ring (22) is provided on the edge of the diverter plate (20); And / or, the diversion hole (21) is configured to be triangular.

4. The ignition and oil control device for a boiler in a thermal power plant according to claim 1, characterized in that: The inner wall of the oil storage cavity (11) is provided with an explosion-proof layer (12).

5. The ignition and oil control device for a boiler in a thermal power plant according to claim 1, characterized in that: An elongated round belly-shaped movable chamber (311) is provided in the fuel injection nozzle (31), and the plugging head (32) is movably arranged in the movable chamber (311).

6. The ignition and oil control device for a boiler in a thermal power plant according to claim 5, characterized in that: The plugging head (32) comprises a first shaft section (321) and a second shaft section (322) which are connected to each other. The outer diameter of the first shaft section (321) is smaller than the outer diameter of the second shaft section (322). The first shaft section (321) can be movably inserted into the oil outlet (112). The second shaft section (322) is connected to the elastic member (33). A sealing ring (323) is sleeved on the first shaft section (321).

7. The ignition and oil control device for a boiler in a thermal power plant according to claim 5, characterized in that: The oil control component (30) further comprises a magnetic block (34) and a magnetic adsorption member (35); the elastic member (33) abuts against the magnetic block (34); the magnetic block (34) is movable in the movable cavity (311); the magnetic adsorption member (35) is arranged on the outer side of the oil injection nozzle (31); the magnetic adsorption member (35) drives the magnetic block (34) to move along the outer wall of the oil injection nozzle (31) so as to adjust the deformation amount of the elastic member (33).

8. The ignition and oil control device for a boiler in a thermal power plant according to claim 1, characterized in that: The oil control component (30) further comprises a pressure monitor (43), wherein the pressure monitor (43) is arranged in the oil storage chamber (11), and the pressure monitor (43) is used to monitor the oil pressure in the oil storage chamber (11).

9. The ignition and oil control device for a boiler in a thermal power plant according to claim 1, characterized in that: The thermal power plant boiler ignition oil control device further comprises a bracket (45), wherein the bracket (45) has a receiving groove (451), wherein the receiving groove (451) is adapted to the external shape of the oil tank (10), and the oil tank (10) is arranged in the receiving groove (451).

10. The ignition and oil control device for a boiler in a thermal power plant according to claim 1, characterized in that: The thermal power plant boiler ignition oil control device further comprises a filter (44), and the filter (44) is arranged at the oil inlet (111).

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