Local oxygen-enriched precise directional combustion-supporting device and system

Abstract

The invention relates to the technical field of oxygen-enriched injection control, and discloses a local oxygen-enriched precise directional combustion-supporting device which comprises a nozzle assembly, the nozzle assembly comprises a nozzle body arranged in a steam furnace, a combustion head arranged on the nozzle body and an extension spray pipe arranged on the combustion head, and a micro-motion changing piece is arranged on the extension spray pipe; the oxygen-enriched combustion-supporting assembly comprises an oxygen jetting piece arranged on the nozzle body, a combustion-supporting flow channel arranged on the oxygen jetting piece and a combustion-supporting direction changing part arranged on the combustion-supporting flow channel; according to the adjusting assembly, when a rotating plate rotates, a plurality of connecting rods move from the direction close to each other to the direction far away from each other by means of the matching relation between a first guide groove and a second guide groove, so that oxygen-enriched nozzles at the upper ends are close to each other, and the spraying position of oxygen enrichment is closer to a burner; therefore, the oxygen-enriched gas is directly jetted into the most oxygen-deficient area of the combustion flame center to support combustion, and the temperature of the combustion flame center area reaches the highest.

Description

Technical Field

[0001] This invention relates to the technical field of oxygen-enriched injection control, and more particularly to a local oxygen-enriched precision directional combustion-supporting device and system. Background Technology

[0002] The implementation of oxygen-enriched combustion for energy saving in the heating furnaces of oil refineries has been successfully achieved only by the inventor, Wei Boqing, on the vacuum furnace of China National Petroleum Corporation's Dagang Petrochemical Company, and has been operating safely and normally for more than two years. When implementing oxygen-enriched energy-saving projects in oil refineries, it is necessary to consider not only their energy-saving effect, but also their safety, especially the changes in combustion flame control and furnace temperature distribution caused by the increase in combustion flame temperature. All these factors must be taken into account to ensure the safety of oxygen-enriched combustion.

[0003] Therefore, when performing oxygen enrichment operations in the furnace, it is necessary to control the oxygen enrichment delivery location and delivery point. However, the existing oxygen enrichment delivery is only carried out through fixed pipelines, which makes it difficult to accurately deliver oxygen enrichment according to the position of the flame combustion. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above-mentioned local oxygen-enriched precision directional combustion-supporting devices and systems, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a local oxygen-enriched, precise, directional combustion-supporting device and system.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a local oxygen-enriched precision directional combustion-supporting device, comprising: a nozzle assembly, including a nozzle body disposed in a steam furnace, a burner head disposed on the nozzle body, and an extension nozzle disposed on the burner head, wherein the extension nozzle is provided with a micro-motion changing component; an oxygen-enriched combustion-supporting component, including an oxygen injection component disposed on the nozzle body, a combustion-supporting flow channel disposed on the oxygen injection component, and a combustion-supporting direction changing component disposed in the extension nozzle; and an adjustment component, wherein the adjustment component is disposed on the oxygen injection component.

[0008] As a preferred embodiment of the local oxygen-enriched precision directional combustion aid device of the present invention, wherein: the extended nozzle is disposed at the front end of the nozzle body, and the micro-motion alteration component includes a first rotating cylinder disposed inside the extended nozzle, a first micro-motion plate disposed on the first rotating cylinder, a plurality of through holes opened on the first micro-motion plate, and a micro-motion tube opened on the through holes.

[0009] As a preferred embodiment of the local oxygen-enriched precision directional combustion-supporting device of the present invention, the oxygen injection component includes an oxygen-enriched nozzle, a receiving plate disposed on the nozzle body, a mounting column disposed on the receiving plate, and a receiving plate connected to the mounting column. The receiving plate is provided with a plurality of mounting grooves, which are arranged in a circular array on the surface of the receiving plate.

[0010] As a preferred embodiment of the local oxygen-enriched precision directional combustion-aiding device of the present invention, the combustion-aiding direction changing component includes an adjusting rod rotatably connected in the mounting groove, an adjusting rod rotatably connected to the lower end of the adjusting rod, and a rotating plate disposed in the extension nozzle. The oxygen-enriched nozzle is disposed at the end of the spray bar. A first guide groove is provided on the rotating plate. A fixing plate is provided on the rotating plate. A second guide groove is provided on the fixing plate. The first guide groove is arc-shaped, and the two ends of the first guide groove correspond to the two ends of the second guide groove. The second guide groove is disposed along the radial direction of the fixing plate. A connecting rod is provided between the first guide groove and the second guide groove, and the connecting rod is disposed corresponding to the adjusting rod.

[0011] As a preferred embodiment of the local oxygen-enriched precision directional combustion-supporting device of the present invention, the adjustment component includes a clamping cylinder disposed within the nozzle body, a covering cylinder disposed outside the clamping cylinder, and a baffle plate rotatably connected between the clamping cylinder and the covering cylinder. A rotating shaft is provided at one end of the baffle plate extending out of the covering cylinder. An oxygen-enriched storage cavity is formed between the clamping cylinder and the covering cylinder. The rear end of each adjustment rod extends into the oxygen-enriched storage cavity. A flexible connecting cylinder is provided at the connection between the adjustment rod and the oxygen-enriched storage cavity. A driving component for driving the baffle plate to rotate is provided inside the connecting cylinder.

[0012] As a preferred embodiment of the local oxygen-enriched precision directional combustion-supporting device of the present invention, the driving component includes a connecting collar disposed outside each rotating shaft, a connecting ring disposed on the rotating shaft, and a connecting rod extending from the side wall of the connecting ring. A driven connecting rod is hinged between the lower ends of every two connecting rods. A motor connected to the rotating shaft is provided on the abutment cylinder.

[0013] As a preferred embodiment of the local oxygen-enriched precision directional combustion-supporting device of the present invention, wherein: a plurality of driven connecting rods are provided with a connecting plate, a telescopic rod is provided between the lower end of each driven connecting rod and the connecting plate, a sliding plate connected to the connecting plate is provided on the connecting ring, and a connecting rod extends outward from each connecting plate and is connected to the rotating plate.

[0014] This invention discloses a localized oxygen-enriched precision directional combustion system, comprising: a control module, including a motor control module, an oxygen-enrichment control module, and a nozzle control module; the motor control module controls the motor and further controls the rotation angle of the baffle plate; the oxygen-enrichment control module controls the oxygen flow rate in the combustion channel; and the nozzle control module controls the combustion intensity of the nozzle; a monitoring module, used to monitor the oxygen concentration in the oxygen-enrichment storage chamber; and a camera monitoring module, used to observe the combustion status of the burner head via video.

[0015] The beneficial effects of this invention are as follows: When the motor drives the rotating shaft to rotate, it will synchronously drive the connecting rod to rotate. The rotation of the rotating rod will push the driven connecting rod at the lower end to slide in a straight line. The sliding of the driven connecting rod will drive the rotation of the next rotating rod, and so on, to achieve the rotation of all the rotating rods, thereby driving the rotation of several rotating shafts, thus realizing the rotation of the barrier plate. This allows control over the amount of oxygen enriched transported per unit time and the flow rate of the oxygen enriched transport.

[0016] When several driven connecting rods move, they will drive the telescopic rod to move horizontally, thereby driving the slide plate to move horizontally. Since several slide plates form a ring, the movement of all slide plates will merge into a horizontal rotation. The slide plates drive the connecting rod to rotate, thereby driving the upper rotating plate to rotate.

[0017] When the rotating plate rotates, the cooperation between the first guide groove and the second guide groove causes several connecting rods to move from a direction that is close to each other to a direction that is far away from each other. This causes the oxygen-enriched nozzles at the top to come closer together, making the oxygen-enriched injection position closer to the burner. This allows the oxygen-enriched gas to be directly jetted into the most oxygen-deficient area in the center of the combustion flame to aid combustion and make the temperature in the center of the combustion flame reach its highest level. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of the local oxygen-enriched precision directional combustion-supporting device of the present invention.

[0020] Figure 2 This is a three-dimensional cross-sectional view of the overall structure of the local oxygen-enriched precision directional combustion-supporting device of the present invention.

[0021] Figure 3This is a cross-sectional schematic diagram of the overall structure of the local oxygen-enriched precision directional combustion-supporting device of the present invention.

[0022] Figure 4 This is a cross-sectional schematic diagram of the combustion direction changing component of the local oxygen-enriched precision directional combustion-supporting device of the present invention.

[0023] Figure 5 This is a schematic diagram of the combustion direction changing component of the local oxygen-enriched precision directional combustion-supporting device of the present invention.

[0024] Figure 6 This invention relates to a localized oxygen-enriched, precise, directional combustion-supporting device. Figure 3 Enlarged schematic diagram of component A.

[0025] Figure 7 This is a schematic diagram of the explosion state of the combustion direction changing component of the local oxygen-enriched precision directional combustion-supporting device of the present invention.

[0026] Figure 8 This is a schematic diagram of the adjustment components of the local oxygen-enriched precision directional combustion-supporting device of the present invention.

[0027] Figure 9 This is an enlarged schematic diagram of the driving component of the local oxygen-enriched precision directional combustion-supporting device of the present invention.

[0028] Figure 10 This is a schematic diagram of the modules of the local oxygen-enriched precision directional combustion-supporting system of the present invention.

[0029] Explanation of reference numerals in the attached drawings: 100, Nozzle assembly; 101, Nozzle body; 102, Combustion head; 103, Extended nozzle; 104, Micro-motion alteration component; 200, Oxygen-enriched combustion assembly; 201, Oxygen injection component; 202, Combustion channel; 203, Combustion direction changing component; 104a, First rotating cylinder; 104b, First micro-motion plate; 104c, Through hole; 104d, Micro-motion tube; 201a, Oxygen-enriched nozzle; 201b, Receiving plate; 201c, Mounting post; 201d, Mounting groove; 203a, Spray bar; 203b, Adjusting rod; 203c, Rotating plate; 203d, First guide groove; 203e, Fixing plate; 203f, First... 2. Guide groove; 203g, connecting rod; 300, adjusting component; 301, clamping sleeve; 301a, abutting sleeve; 302, covering sleeve; 303, baffle plate; 304, rotating shaft; 305, flexible connecting sleeve; 306, suction pump body; 400, driving component; 401, connecting collar; 402, connecting ring; 403, linkage rod; 404, driven connecting rod; 405, motor; 406, linkage disc; 407, telescopic rod; 408, sliding plate; 409, connecting rod; 500, control module; 501, motor control module; 502, oxygen enrichment control module; 503, nozzle control module; 504, monitoring module; 505, camera monitoring module. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0034] Example 1

[0035] Reference Figures 1-9 The first embodiment of the present invention provides a local oxygen-enriched precision directional combustion aid device, including a nozzle assembly 100. In this embodiment, the nozzle assembly 100 includes a nozzle body 101 disposed in a steam furnace, a burner head 102 disposed on the nozzle body 101, and an extension nozzle 103 disposed on the burner head 102. A micro-motion changer 104 is provided on the extension nozzle 103.

[0036] The nozzle body 101 is located in the combustion chamber of the steam furnace, and the combustion chamber is completely sealed, with only the necessary pipeline for gas flow. The nozzle body 101 is made of high-temperature resistant material and is located at the center of the combustion chamber. The burner head 102 is located at the front end of the nozzle body 101. This arrangement allows the burner head 102 to guide the ejected flame.

[0037] Preferably, the extended nozzle 103 is used to lengthen the burner head 102, so that the flame is ejected further forward.

[0038] Furthermore, the present invention also includes an oxygen-enriched combustion-supporting component 200. In this embodiment, the oxygen-enriched combustion-supporting component 200 includes an oxygen injector 201 disposed in the extended nozzle 103, a combustion-supporting channel 202 disposed on the oxygen injector 201, and a combustion-supporting direction changing component 203 disposed on the combustion-supporting channel 202. The oxygen injector 201 is used to inject oxygen-enriched material. The oxygen injector 201 is arranged in a circumferential manner to allow combustion to be more complete. The combustion-supporting channel 202 is mainly used to supply oxygen-enriched material to the oxygen injector 201.

[0039] Preferably, the combustion direction changing component 203 can change the orientation of the oxygen injection component 201, thereby adjusting the degree of combustion.

[0040] Furthermore, the present invention also includes an adjustment component 300, which is disposed within the nozzle body 101.

[0041] Furthermore, the extended nozzle 103 is disposed at the front end of the nozzle body 101. In this embodiment, the extended nozzle 103 is disposed at the front end of the nozzle body 101. The micro-motion changer 104 includes a first rotating cylinder 104a disposed in the extended nozzle 103, a first micro-motion plate 104b disposed on the first rotating cylinder 104a, a plurality of through holes 104c opened on the first micro-motion plate 104b, and a micro-motion tube 104d opened on the through holes 104c.

[0042] In this embodiment, the oxygen injection component 201 includes an oxygen-enriched nozzle 201a, a receiving plate 201b disposed within the extended nozzle 103, a mounting post 201c disposed on the receiving plate 201b, and a receiving plate 201b disposed on the mounting post 201c. The oxygen-enriched nozzle 201a is a normally open nozzle that allows airflow to be ejected. The mounting post 201c is connected to the receiving plate 201b by bolts. The upper end of the receiving plate 201b is configured as a semi-circular spherical shape. Several mounting grooves 201d are provided at the upper end of the receiving plate 201b, and the several mounting grooves 201d are arranged in a circular array on the upper surface of the receiving plate 201b.

[0043] Furthermore, in this embodiment, the combustion direction changing component 203 includes a spray bar 203a rotatably connected in the mounting groove 201d and an adjusting rod 203b rotatably connected to the spray bar 203a. The oxygen-enriching nozzle 201a is disposed on the spray bar 203a. A rotating plate 203c is disposed in the extension nozzle 103. A first guide groove 203d is formed on the rotating plate 203c. A fixing plate 203e is disposed on the rotating plate 203c. A second guide groove 203f is formed on the fixing plate 203e. The first guide groove 203d is arc-shaped, and the two ends of the first guide groove 203d correspond to the two ends of the second guide groove 203f. The second guide groove 203f is formed along the radial direction of the fixing plate 203e. A connecting rod 203g is disposed between the first guide groove 203d and the second guide groove 203f. Each connecting rod 203g is disposed corresponding to the adjusting rod 203b.

[0044] Furthermore, in this embodiment, the adjustment assembly 300 includes a retaining cylinder 301 disposed within the nozzle body 101, a covering cylinder 302 disposed outside the retaining cylinder 301, an abutment cylinder 301a disposed between the retaining cylinder 301 and the covering cylinder 302, and a baffle plate 303 rotatably connected between the retaining cylinder 301 and the abutment cylinder 301a. A rotating shaft 304 is provided at one end of the baffle plate 303 extending out of the abutment cylinder 301a, forming an oxygen-enriched storage cavity between the retaining cylinder 301 and the covering cylinder 302. The rear end of each adjustment rod 203b extends into the oxygen-enriched storage cavity. A flexible connecting cylinder 305 is provided at the connection between the adjustment rod 203b and the oxygen-enriched storage cavity. A suction pump body 306 is provided at one end of the covering cylinder 302 away from the oxygen injection component 201. A driving component 400 for driving the baffle plate 303 to rotate is provided on the abutment cylinder 301a.

[0045] Preferably, the covering cylinder 302 wraps around the cartridge 301, and while the covering cylinder 302 wraps around the cartridge 301, the front end of the covering cylinder 302 is sealed to the nozzle body 101, and the resulting annular oxygen-enriched storage cavity is annular.

[0046] In this embodiment, the driving component 400 includes a connecting collar 401 disposed outside each rotating shaft 304. The connecting collar 401 is connected to the outer wall of the abutment cylinder 301a by bolts. A connecting ring 402 is also connected to the rotating shaft 304. A connecting rod 403 extends from the side wall of the connecting ring 402 and rotates with the rotation of the rotating shaft 304. A driven connecting rod 404 is hinged between the ends of every two connecting rods 403. Both ends of the driven connecting rod 404 are hinged, so that only one rotating shaft 304 needs to be driven to rotate to drive the other rotating shafts 304 to rotate.

[0047] A locking block is provided at one end of the rotating shaft 304 near the connecting ring 402. The locking blocks are symmetrically arranged on the rotating shaft 304, and the two locking blocks are located in the radial diameter direction of the rotating shaft 304. At the same time, a locking groove is provided on the connecting ring 402 to cooperate with the locking blocks. The angle between the connecting line of the two locking blocks and the length direction line of the connecting rod 403 is between 45° and 50°. A bracket is also provided on the abutment cylinder 301a, and a motor 405 is provided on the bracket. The rotation of the rotating shaft 304 can be controlled by the motor 405.

[0048] A series of driven connecting rods 404 extend outwards to a connecting plate 406. A telescopic rod 407 is provided between each driven connecting rod 404 and the connecting plate 406. A sliding plate 408 is provided on the abutment ring and is slidably connected to the connecting plate 406. The sliding plate 408 guides the connecting plate 406. A connecting rod 409 extends outwards from each connecting plate 406 and is connected to the rotating plate 203c. After being bent, the connecting rod 409 is connected to the side wall of the rotating plate 203c.

[0049] Operation process: When the motor 405 drives the rotating shaft 304 to rotate, it will synchronously drive the connecting rod 403 to rotate. The rotation of the connecting rod 403 will push the driven connecting rod 404 to slide in a linear direction. The sliding of the driven connecting rod 404 will drive the rotation of the next connecting rod 403, and so on, so that all the connecting rods 403 can rotate, thereby driving the rotation of several rotating shafts 304, thereby realizing the rotation of the baffle plate 303. This allows control of the amount of oxygen enriched conveyed per unit time and the flow rate of oxygen enrichment.

[0050] When several driven connecting rods 404 move, they will drive the telescopic rod 407 to move laterally, thereby driving the slide plate 408 to move. Since several slide plates 408 form a ring, the movement of all slide plates 408 will merge into rotation. The slide plate 408 drives the connecting rod 409 to rotate, thereby driving the rotating plate 203c to rotate.

[0051] When the rotating plate 203c rotates, the cooperation between the first guide groove 203d and the second guide groove 203f causes several connecting rods 203g to move from a direction that is close to each other to a direction that is far away from each other. This causes the oxygen-enriched nozzles 201a to move closer to each other, making the oxygen-enriched injection position closer to the burner. This allows the oxygen-enriched gas to be directly jetted into the most oxygen-deficient area in the center of the combustion flame to aid combustion and make the temperature in the center of the combustion flame reach its highest level.

[0052] Example 2

[0053] Reference Figure 10The difference between this embodiment and the previous embodiment is that the present invention also discloses a local oxygen-enriched precision directional combustion system, including a control module 500. In this embodiment, the control module 500 includes a motor control module 501, an oxygen-enrichment control module 502, and a nozzle control module 503. The motor control module 501 is used to control the motor 405 and further control the rotation angle of the baffle plate 303. The oxygen-enrichment control module 502 controls the oxygen flow rate in the combustion channel 202. The nozzle control module 503 is used to control the combustion intensity of the nozzle.

[0054] Furthermore, it also includes a monitoring module 504, which is used to monitor the oxygen concentration in the oxygen-enriched storage chamber. A camera monitoring module 505 is also provided in the combustion chamber, which is used to observe the combustion of the burner head 102 via video.

[0055] The control module 500 can be used to monitor the internal oxygen content;

[0056] Each area is equipped with a differential pressure sensor. Based on the real-time feedback from the differential pressure sensor, the opening and closing status of the baffle plate 303 is automatically adjusted. The differential pressure data is transmitted to the central control console in real time via a wireless communication module.

[0057] HEPA and ULPA filters are installed at the oxygen outlet, combined with an electronic dust collector, and RFID tags are fitted to the filters to track their lifespan and replacement cycle.

[0058] The airflow direction inside the nozzle body is simulated and predicted using CFD software, and combined with the automated baffle plate 303 adjustment system, the oxygen flow direction is dynamically adjusted, thereby affecting the nozzle combustion.

[0059] Deploy IoT technology and sensor networks to monitor the oxygen content and pressure difference inside the nozzle body in real time. The data is transmitted to a central database in real time for data analysis. When an anomaly occurs, an alarm is automatically triggered. The collected data is then subjected to big data analysis and deep learning to automatically optimize the flow rate of oxygen content and the control strategy for oxygen content per unit time.

[0060] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0061] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0062] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A localized oxygen-enriched precision-directed combustion-supporting device, characterized in that: include: The nozzle assembly (100) includes a nozzle body (101) disposed in a steam furnace, a burner head (102) disposed on the nozzle body (101) and an extension nozzle (103) disposed on the burner head (102), wherein the extension nozzle (103) is provided with a micro-motion changer (104); The oxygen-enriched combustion-supporting assembly (200) includes an oxygen injection element (201) disposed on the nozzle body (101), a combustion-supporting flow channel (202) disposed on the oxygen injection element (201), and a combustion-supporting direction changing component (203) disposed in the extension nozzle (103); An adjustment assembly (300) is disposed on the oxygen injector (201).

2. The local oxygen-enriched precision directional combustion-supporting device as described in claim 1, characterized in that: The extended nozzle (103) is disposed at the front end of the nozzle body (101), and the micro-motion changer (104) includes a first rotating cylinder (104a) disposed in the extended nozzle (103), a first micro-motion plate (104b) disposed on the first rotating cylinder (104a), a plurality of through holes (104c) opened on the first micro-motion plate (104b), and a micro-motion tube (104d) opened on the through holes (104c).

3. The local oxygen-enriched precision directional combustion-supporting device as described in claim 1, characterized in that: The oxygen injection component (201) includes an oxygen-enriched nozzle (201a), a receiving plate (201b) disposed in an extension nozzle (103), and mounting posts (201c) disposed on the receiving plate (201b). The receiving plate (201b) is provided with a plurality of mounting grooves (201d), which are arranged in a circular array on the surface of the receiving plate (201b).

4. The local oxygen-enriched precision directional combustion-supporting device as described in claim 1, characterized in that: The combustion direction changing component (203) includes a spray bar (203a) rotatably connected in the mounting groove (201d), an adjusting rod (203b) rotatably connected to the lower end of the spray bar (203a), and a rotating plate (203c) disposed in the extension nozzle (103). The oxygen-enriching nozzle (201a) is disposed at the end of the spray bar (203a). A first guide groove (203d) is provided on the rotating plate (203c), and a fixing plate (203e) is provided on the rotating plate (203c). A second guide groove (203f) is provided on the fixed plate (203e). The first guide groove (203d) is arc-shaped, and the two ends of the first guide groove (203d) are corresponding to the two ends of the second guide groove (203f). The second guide groove (203f) is provided along the radial direction of the fixed plate (203e). A connecting rod (203g) is provided between the first guide groove (203d) and the second guide groove (203f). The connecting rod (203g) is provided corresponding to the adjusting rod (203b).

5. The local oxygen-enriched precision directional combustion-supporting device as described in claim 1, characterized in that: The adjustment assembly (300) includes a retaining cylinder (301) disposed within the nozzle body (101), a covering cylinder (302) disposed outside the retaining cylinder (301), an abutment cylinder (301a) disposed within the covering cylinder (302), and a baffle plate (303) rotatably connected between the retaining cylinder (301) and the abutment cylinder (301a). A rotating shaft (304) is provided at one end of the baffle plate (303) extending beyond the abutment cylinder (301a). 1) An oxygen-enriched storage cavity is formed between the covering cylinder (302) and the oxygen-enriched storage cavity. The rear end of each adjusting rod (203b) extends into the oxygen-enriched storage cavity. A suction pump body (306) is provided at the end of the covering cylinder (302) away from the oxygen injection component (201). A flexible connecting cylinder (305) is provided at the connection between the adjusting rod (203b) and the oxygen-enriched storage cavity. A driving component (400) for driving the baffle plate (303) to rotate is provided on the abutting cylinder (301a).

6. The localized oxygen-enriched precision directional combustion-supporting device as described in claim 5, characterized in that: The drive component (400) includes a connecting collar (401) disposed outside each rotating shaft (304), a connecting ring (402) disposed on the rotating shaft (304), and a connecting rod (403) extending from the side wall of the connecting ring (402). A driven connecting rod (404) is hinged between the lower ends of every two connecting rods (403). The abutment cylinder (301a) is provided with a motor (405) connected to the rotating shaft (304).

7. The localized oxygen-enriched precision directional combustion-supporting device as described in claim 6, characterized in that: A linkage disc (406) is provided on several of the driven connecting rods (404), and a telescopic rod (407) is provided between the lower end of each driven connecting rod (404) and the linkage disc (406). A sliding plate (408) is provided on the abutment cylinder (301a) to guide the sliding of the linkage disc (406). A connecting rod (409) extends outward from each linkage disc (406) and is connected to the rotating plate (203c).

8. A localized oxygen-enriched precision-directed combustion-supporting system, used in any one of the localized oxygen-enriched precision-directed combustion-supporting devices as described in claims 1-7, characterized in that: include, The control module (500) includes a motor control module (501), an oxygen enrichment control module (502), and a nozzle control module (503). The motor control module (501) is used to control the motor (405) and further control the rotation angle of the baffle plate (303). The oxygen enrichment control module (502) controls the oxygen flow rate in the combustion channel (202). The nozzle control module (503) is used to control the combustion intensity of the nozzle. A monitoring module (504) is used to monitor the oxygen concentration in the oxygen-enriched storage chamber; The camera monitoring module (505) is used to observe the combustion status of the burner head (102) via video.

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