Plasma combustion torch wind disc

Abstract

The invention relates to the technical field of kiln combustion, and discloses a plasma combustion torch wind disc which comprises a disc body, a connecting assembly is arranged on the disc body, a mounting assembly is arranged in the connecting assembly, the disc body is connected with a spherical central electrode through the connecting assembly and the mounting assembly, a plurality of inclined groove blocks are annularly distributed on the outer side of the disc body, and the inclined groove blocks are arranged in the disc body. An air guide groove is formed between the inclined groove blocks and the disc body, a central air pipe is arranged in the middle of the disc body, a plurality of variable-diameter air holes are annularly distributed in the disc body and the central air pipe, and a plurality of circular axial air holes are formed in the disc body. Through the design of the inclined air flow guide groove and the variable-diameter air holes, airflow mixing is optimized, the combustion efficiency is improved, a spherical center electrode and plasma are adopted for ignition, mixed gas is rapidly ignited, the ignition delay problem is solved, and the device adapts to complex working conditions; the modular structure facilitates rapid disassembly and assembly of the electrodes, reduces maintenance time, and is more convenient to operate and safe and reliable to use compared with a traditional structure.

Description

Technical Field

[0001] The invention relates to the technical field of kiln combustion, in particular to a plasma combustion torch air disk. Background Art

[0002] A plasma combustion torch wind disk is an industrial equipment that combines plasma technology with combustion technology. It aims to improve combustion efficiency, reduce pollutant emissions, and enhance the stability and adaptability of the combustion system. The traditional wind disk has angled grooves on the edge to guide the air to form a cyclone moving along the axial direction. There are 10-20 circular axial air holes on the front of the wind disk, accounting for about 40% of the total air passing area. The upper end of the wind disk is the gas cap, and there are axial and radial air holes on the top and side of the gas cap respectively. Natural gas enters the burner from the two directions of air holes and mixes with the air; In actual use, the natural gas pressure is usually higher than the air pressure, and the two are prone to interference when mixed. As a result, the airflow is unevenly distributed in the combustion area, and local over-concentration or over-dilute phenomena are more common, which directly leads to incomplete combustion, unstable flames, and low energy utilization efficiency. In addition, this mixing method is prone to vibration due to turbulence, which increases equipment wear; Secondly, the ignition method is mostly mechanical spark ignition or electric heating element heating ignition. These methods are prone to failure in high pressure, low temperature or complex airflow environments, especially when the natural gas pressure is low or the air humidity is high. Ignition delay or ignition failure is not uncommon. In addition, the traditional ignition method has a high starting temperature, which leads to increased energy consumption and reduced combustion efficiency. This ignition solution has lagged behind in the face of the demand for efficient and fast combustion. The core components of the burner (such as electrodes or airflow control components) are often closely integrated with the main structure of the equipment, and professional tools and a long time are required for disassembly. This design makes the daily maintenance of the equipment inconvenient, and the replacement process of vulnerable parts such as electrodes is time-consuming and laborious. Especially after long-term operation, when the equipment needs regular maintenance, the disadvantages of complex disassembly and assembly steps will be further magnified, which directly affects the normal operation efficiency of the equipment. Therefore, a plasma combustion torch wind disk is proposed to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a plasma combustion torch wind disk, which solves the problem that, during use, due to the natural gas pressure being higher than the air wind pressure, interference is easily caused during mixing, resulting in uneven airflow distribution in the combustion area, local over-concentration or over-thinness, unstable flame, and low combustion efficiency. In addition, traditional mechanical ignition and electric heat ignition methods are prone to failure under conditions of high pressure, low temperature or high humidity, and ignition delays or failures are common. In addition, the starting temperature is high, and the energy consumption is increased, which is not suitable for the needs of efficient and rapid combustion. At the same time, the core components of the burner, such as the electrode, are closely integrated with the main structure, and the disassembly and assembly are complicated, and the maintenance is time-consuming and labor-intensive. These problems significantly affect the operating stability and efficiency of the equipment.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A plasma combustion torch wind disk, comprising a disk body, a connecting assembly is arranged on the disk body, a mounting assembly is arranged inside the connecting assembly, and the disk body is connected to a spherical central electrode through the connecting assembly and the mounting assembly; The connecting assembly includes a plurality of mounting blocks, a connecting groove is provided on the disc body, a plurality of the mounting blocks are arranged in the connecting groove, a pin hole is provided in the connecting groove, a latch is provided in the pin hole, the latch is arranged on the mounting block, a mounting ring is provided between the plurality of mounting blocks, and a traction assembly is provided on the mounting block.

[0005] Preferably, the traction assembly comprises a knob, the knob is arranged on the mounting block, a reeling shaft is arranged on the knob, the reeling shaft is connected to the latch by a cable, and a reset assembly is arranged in the mounting block.

[0006] Preferably, the reset assembly includes a connecting spring, a storage compartment is provided on the mounting block, and the connecting spring is arranged between the storage compartment and the latch.

[0007] Preferably, a plurality of chute blocks are annularly distributed on the outer side of the disk body, and the chute blocks and the disk body together form air guide grooves.

[0008] Preferably, the chute blocks and the formed air guide grooves are distributed at an inclined angle, and the inclined air guide grooves are helpful for forming a rotating airflow, which is used to enhance the mixing effect of natural gas and air and improve the combustion efficiency.

[0009] Preferably, a central air pipe is provided in the middle of the disc body, a plurality of variable-diameter air holes are annularly distributed in the disc body and the central air pipe, and three groups of axial fan-shaped holes are annularly distributed on the disc body.

[0010] Preferably, the opening diameter of the variable diameter air hole gradually increases from close to the central air pipe to the air guide groove, and the variable diameter air hole is used to alleviate the interference of natural gas flow on the cyclone and ensure the balance of air flow pressure and wind pressure.

[0011] Preferably, the mounting assembly includes a mounting ring 2, wherein the mounting ring 2 is arranged inside the mounting ring 1, a plurality of mounting grooves 2 are longitudinally distributed on the mounting ring 2, a plurality of mounting grooves 1 are arranged on the mounting ring 1, mounting steel balls are arranged in the mounting grooves 1, and an adjustment assembly is arranged on the mounting ring 1.

[0012] Preferably, the adjustment assembly comprises a mounting sleeve, the mounting sleeve is arranged on the outside of the mounting ring 1, and a mounting spring is arranged between the mounting ring 1 and the mounting sleeve.

[0013] Preferably, a mounting frame is provided inside the mounting ring 2 in the mounting assembly, and the spherical center electrode is provided on the mounting frame.

[0014] The present invention provides a plasma combustion torch wind disk, which has the following beneficial effects: 1. The present invention forms a stable rotating airflow through obliquely distributed air guide grooves, and uses variable-diameter air holes to gradually adjust the airflow pressure to promote the full mixing of natural gas and air. This design can reduce turbulent interference in the mixing process. Compared with the prior art where the natural gas pressure and air wind pressure do not match, resulting in uneven mixing, the combustion efficiency is significantly improved, the flame is more stable, and the combustion is more thorough.

[0015] 2. The present invention adopts an ignition method of a spherical center electrode and plasma discharge. The plasma ignition is not only fast, but also can greatly increase the initial temperature of the combustion zone. The air volume expansion effect is significant, which accelerates the combustion reaction of the mixed gas. The position of the spherical center electrode can be adjusted by using the mounting assembly. Compared with traditional mechanical ignition, the problems of ignition delay and unstable combustion start in the prior art have been solved. There is no need for a high starting temperature, and the ignition is efficient and stable, which is particularly suitable for the combustion requirements of low-pressure gas and complex working conditions.

[0016] 3. The present invention rotates the knob, which drives the reel-up shaft to rotate, so that the cable can move the pin, so that the mounting block and the first mounting can be removed from the disk, and then the mounting sleeve is slid, so that the position of the mounting steel ball is not restricted, the second mounting ring and the mounting frame can be removed, and the spherical center electrode on the mounting frame is also removed. The modular design makes the electrode easy and quick to disassemble and assemble, reducing downtime. Compared with the structure in the prior art that is complex to disassemble and time-consuming to maintain, the present invention greatly improves the convenience of operation. The positioning of the electrode is also more precise, safer and more reliable in use, showing extremely high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the splitting of the present invention; Figure 3It is a longitudinal cross-sectional schematic diagram of the present invention; Figure 4 It is a cross-sectional schematic diagram of the present invention; Figure 5 It is a top view schematic diagram of the present invention; Figure 6 It is a schematic diagram of the connection assembly of the present invention; Figure 7 It is a schematic diagram of the installation assembly of the present invention; Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0018] Among them, 1. disk body; 2. inclined slot block; 3. air guide slot; 4. variable diameter air hole; 5. spherical center electrode; 6. mounting frame; 7. axial fan-shaped hole; 8. connecting assembly; 801. connecting slot; 802. pin hole; 803. latch; 804. mounting block; 805. mounting ring one; 806. reeling shaft; 807. storage cabin; 808. connecting spring; 809. cable; 810. knob; 9. mounting assembly; 901. mounting ring two; 902. mounting slot one; 903. mounting slot two; 904. mounting steel ball; 905. mounting sleeve; 906. mounting spring; 10. center air pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Please see attached Figure 1 -Attached Figure 4 An embodiment of the present invention provides a plasma combustion torch wind disk, including a disk body 1, a plurality of chute blocks 2 are annularly distributed on the outer side of the disk body 1, and the chute blocks 2 and the disk body 1 together form air guide grooves 3, and the chute blocks 2 and the formed air guide grooves 3 are distributed at an inclined angle.

[0021] Specifically, the disc body 1, as the basic component of the equipment, can carry the remaining components. The thickness of the disc body 1 is increased from the original 10 mm to 20 mm, which extends the length of the wind slot and increases the guiding effect on the cyclone by more than 1 times. Under the condition of equal wind pressure, it is beneficial to the range of the flame. The inclined groove block 2 is used to form an inclined air guide groove 3 with the disc body 1. The inclined air guide groove 3 helps to form a rotating airflow, which is used to enhance the mixing effect of natural gas and air and improve the combustion efficiency.

[0022] Please see attached Figure 1 , Attachment Figure 3and attached Figure 4 A central air pipe 10 is provided in the middle of the disc body 1, and a plurality of variable-diameter air holes 4 are arranged in an annular manner in the disc body 1 and the central air pipe 10. Three groups of axial fan-shaped holes 7 are arranged in an annular manner on the disc body 1, and the opening diameter of the variable-diameter air holes 4 gradually increases from close to the central air pipe 10 to the air guide groove 3.

[0023] Specifically, the variable diameter air hole 4 is designed to be variable diameter, starting from a small opening of the central air pipe 10 and gradually increasing toward the air slot, respectively expanding from 1.2-1.8 mm to 2.2-2.5 mm, and the cross-sectional area of ​​the air hole is expanded by more than 1 / 3. With the expansion of the air hole area, the pressure of the natural gas is further released, gradually approaching the wind pressure of the air, and reducing the interference of the natural gas flow on the cyclone. In the present invention, the natural gas radial holes can be arranged in 2-3 layers as needed, and the disk body 1 has an axial fan-shaped hole 7. The purpose of the axial fan-shaped hole 7 is to allow the plasma arc to enter the combustion chamber through this hole to ignite the mixed gas, and the fan-shaped cross-section design can expand the range of passage; Axial airflow accelerates the cyclone: ​​Axial airflow will directly bring an accelerated motion component to the rotating airflow. If the axial airflow is upward, the rotating airflow will move upward as a whole, which is manifested as the lifting of the airflow; if the axial airflow is downward, the rotating airflow will settle downward. The axial airflow stretches the vortex of the cyclone: ​​The existence of the axial airflow will cause the vortex structure of the rotating airflow to stretch in the axial direction. When the axial airflow is upward, the vortex will be elongated, the rotation radius will increase, and the rotation intensity will be slightly weakened, thereby ensuring that the intensity of the new air disk cyclone is close to that of the original air disk, but the cyclone is complete, and ultimately achieves efficient mixing of air and fuel without affecting the overall working atmosphere of the combustion chamber. The axial airflow enhances the convection and mixing of the cyclone: ​​The axial airflow will promote the convection and mixing of the rotating airflow and the surrounding air. The upward axial airflow will carry the matter or energy in the rotating airflow upward and exchange with the air above.

[0024] Please see attached Figure 2 , Attachment Figure 3 , Attachment Figure 5 and attached Figure 6 The disk body 1 is provided with a connection assembly 8, the connection assembly 8 includes a plurality of mounting blocks 804, a connection groove 801 is provided on the disk body 1, a plurality of mounting blocks 804 are arranged in the connection groove 801, a pin hole 802 is provided in the connection groove 801, a latch 803 is provided in the pin hole 802, the latch 803 is arranged on the mounting block 804, a mounting ring 805 is provided between the plurality of mounting blocks 804, and a traction assembly is provided on the mounting block 804; The traction assembly includes a knob 810, which is disposed on the mounting block 804. A reeling shaft 806 is disposed on the knob 810. The reeling shaft 806 is connected to the latch 803 via a cable 809. A reset assembly is disposed in the mounting block 804. The reset assembly includes a connecting spring 808 . A storage compartment 807 is provided on the mounting block 804 . The connecting spring 808 is arranged between the storage compartment 807 and the latch 803 .

[0025] Specifically, the connecting groove 801 can provide a connecting space between the mounting block 804, the mounting ring 805 and the disk body 1, and the connecting relationship between the pin hole 802 and the latch 803 can be used to fix the mounting ring 805 on the disk body 1. The mounting block 804 is used as a component for accommodating and installing the latch 803. The knob 810 provides a point of action for manual disassembly. The winding shaft 806 can wind up the cable 809 so that the other end of the cable 809 can achieve a traction effect. The storage compartment 807 is used for temporary storage of the latch 803 during disassembly and installation of the connecting spring 808. The connecting spring 808 can quickly reset the latch 803 and also restrict the latch 803 in the pin hole 802 during connection.

[0026] Please see attached Figure 2 , Attachment Figure 3 , Attachment Figure 5 , Attachment Figure 7 and attached Figure 8 , a mounting assembly 9 is arranged in the connecting assembly 8, the mounting assembly 9 includes a second mounting ring 901, the second mounting ring 901 is arranged in the first mounting ring 805, a plurality of second mounting grooves 903 are longitudinally arranged on the second mounting ring 901, a plurality of first mounting grooves 902 are arranged on the first mounting ring 805, a mounting steel ball 904 is arranged in the first mounting groove 902, and an adjustment assembly is arranged on the first mounting ring 805; The adjustment assembly includes a mounting sleeve 905, which is arranged outside the mounting ring 1 805, and a mounting spring 906 is arranged between the mounting ring 1 805 and the mounting sleeve 905; A mounting frame 6 is arranged inside the mounting ring 2 901 in the mounting assembly 9 , and the spherical center electrode 5 is arranged on the mounting frame 6 .

[0027] Specifically, the second mounting ring 901 is a component that connects the first mounting ring 805 and the mounting frame 6. The mounting frame 6 can install and fix the spherical center electrode 5. The first mounting groove 902 can provide space for the installation of the steel ball 904. The mounting sleeve 905 is not only a component that can limit the installation steel ball 904, but also a manipulation component when manually disassembling the second mounting ring 901. When the mounting sleeve 905 limits the installation steel ball 904 in the second mounting groove 903, the second mounting ring 901 can be fixed in the first mounting ring 805. The mounting spring 906 is a component for realizing rapid disassembly and assembly, and can reset the mounting sleeve 905 through its own elastic potential energy. The extension length of the second mounting ring 901 can be adjusted through the second mounting groove 903 of different heights, thereby adjusting the position of the spherical center electrode 5. The spherical center electrode 5 is the core component of the plasma combustion torch wind disk. It adopts a spherical design. This shape can evenly distribute the electric field strength, making the plasma more stable during the discharge process. The discharge area is wide and there is no obvious tip concentration effect, avoiding local overheating or over-ionization. The electrode material is made of high-temperature resistant and corrosion-resistant high-performance alloys (such as tungsten and molybdenum alloys) or composite ceramic materials, which can withstand the impact of high temperature and long-term discharge on the material, while reducing carbon deposition and corrosion loss, and extending the service life. The spherical center electrode 5 generates plasma discharge through high voltage, and the discharge arc between the electrode and the fuel gas instantly forms a high-energy plasma area, which can quickly heat the air and natural gas entering the combustion area to a high temperature state, and realize the rapid ignition of the mixed gas. Through the three-phase symmetrical discharge design, the plasma discharge is more uniform, avoiding local gas ionization deficiency, and reducing electrode loss and carbon deposition probability. This design has higher adaptability to complex airflow conditions; In addition, the temperature of the plasma-heated air is 100 degrees higher than that of the air-fuel mixture. At room temperature and pressure, the thermal expansion coefficient of air is about 3.67×10 - ³ / ℃. According to the formula (in is the volume change, is the initial volume, is the coefficient of thermal expansion, is the temperature change), when the temperature rises by 100℃, the air volume expands by about 36.7% of the initial volume. The initial volume is 1 cubic meter of air, and the temperature rises by 100℃. , the volume after expansion is about 1.367 cubic meters. At this time, the air density becomes lower, and the air in the outer cyclone diffuses toward the center, which promotes the mixing of air and fuel, realizes rapid ignition, and drives the cyclone to burn further, forming a series of flame fronts of sufficient size and temperature on the cyclone, ensuring the full release of the chemical effect of the high temperature effect of combustion.

[0028] Working principle: Natural gas enters the wind disk through the mounting frame 6 and the central air pipe 10. At the same time, the air enters the air guide groove 3 of the disk body 1 along the axial and radial directions through the external air supply system. An inclined air guide groove 3 is formed between the chute block 2 and the disk body 1 to guide the air to form a rotating air flow. Natural gas enters the air guide groove 3 through the variable diameter air hole 4. When the natural gas passes through the variable diameter air hole 4, the pressure of the natural gas gradually approaches the wind pressure of the air, thereby reducing the interference between the air flows and improving the mixing efficiency. The installation sleeve 905 is slid to compress the installation spring 906 on the installation ring 1 805. At this time, the installation ring 2 901 can be slid. The installation steel ball 904 in the installation ring 2 901 lacks the fixation of the installation sleeve 905. The installation ring 2 901 pushes the installation steel ball 904 back into the installation groove 1 902. Then the installation frame 6 on the installation ring 2 901 moves accordingly. When the spherical center electrode 5 on the installation frame 6 reaches a suitable position, the installation sleeve 905 is released. The installation spring 906 releases the stored elastic potential energy and resets the installation sleeve 905. Then, the installation steel ball 904 is restricted by the installation sleeve 905 and enters the installation groove 2 903 to fix the installation ring 2 901. The spherical center electrode 5 is connected to the power supply through the plasma discharge system, and the high energy of the high-energy plasma can be generated to quickly ignite the premixed natural gas and air mixture. The plasma arc enters the combustion chamber through the axial fan-shaped hole 7 to ignite the mixed gas, and a stable flame is generated in the combustion chamber. The air and natural gas in the combustion zone are guided into the combustion area through the rotating airflow. The temperature of the air heated by the plasma is about 100°C higher than that of the mixed gas, which makes the air volume expand by about 36.7%, thereby increasing the combustion speed and temperature of the mixed gas flow, and ensuring the full release of the high temperature effect and chemical effect of the flame front; When replacement or maintenance is required after use, turn the knob 810, which causes the reel-in shaft 806 to rotate, and the reel-in shaft 806 reels the cable 809. Then, the other end of the cable 809 pulls the pin 803 from the pin hole 802 into the storage compartment 807. At this time, the mounting ring 805 and the mounting block 804 can be removed from the connecting groove 801, thereby separating the spherical center electrode 5 and the disk body 1.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plasma combustion torch air disk, comprising a disk body (1), characterized in that: The disk body (1) is provided with a connecting component (8), a mounting component (9) is provided inside the connecting component (8), and the disk body (1) is connected to a spherical central electrode (5) via the connecting component (8) and the mounting component (9); The connection assembly (8) comprises a plurality of mounting blocks (804); a connection groove (801) is provided on the disk body (1); the plurality of mounting blocks (804) are arranged in the connection groove (801); a pin hole (802) is provided in the connection groove (801); a latch (803) is provided in the pin hole (802); the latch (803) is arranged on the mounting block (804); a mounting ring 1 (805) is provided between the plurality of mounting blocks (804); and a traction assembly is provided on the mounting block (804).

2. A plasma combustion torch wind disk according to claim 1, characterized in that: The traction assembly comprises a knob (810) disposed on the mounting block (804); a reeling shaft (806) is disposed on the knob (810); the reeling shaft (806) is connected to the latch (803) via a cable (809); and a reset assembly is disposed in the mounting block (804).

3. A plasma combustion torch wind disk according to claim 2, characterized in that: The reset assembly comprises a connecting spring (808), a storage compartment (807) is provided on the mounting block (804), and the connecting spring (808) is arranged between the storage compartment (807) and the latch (803).

4. The plasma combustion torch wind disk according to claim 1, characterized in that: A plurality of inclined slot blocks (2) are arranged in an annular arrangement on the outer side of the disk body (1), and the inclined slot blocks (2) together with the disk body (1) form air guide slots (3).

5. A plasma combustion torch wind disk according to claim 4, characterized in that: The inclined slot blocks (2) and the formed air guide slots (3) are distributed at an inclined angle, and the inclined air guide slots (3) are helpful in forming a rotating airflow, and are used to enhance the mixing effect of natural gas and air and improve combustion efficiency.

6. The plasma combustion torch wind disk according to claim 1, characterized in that: A central air pipe (10) is arranged in the middle of the disk body (1), a plurality of variable-diameter air holes (4) are arranged in an annular manner in the disk body (1) and the central air pipe (10), and three groups of axial fan-shaped holes (7) are arranged in an annular manner on the disk body (1).

7. A plasma combustion torch wind disk according to claim 6, characterized in that: The opening diameter of the variable diameter air hole (4) gradually increases from close to the central air pipe (10) to the air guide groove (3), and the variable diameter air hole (4) is used to alleviate the interference of natural gas flow on the cyclone and ensure the balance between air flow pressure and wind pressure.

8. The plasma combustion torch wind disk according to claim 1, characterized in that: The mounting assembly (9) comprises a second mounting ring (901), the second mounting ring (901) being arranged inside the first mounting ring (805), the second mounting ring (901) being provided with a plurality of second mounting grooves (903) distributed longitudinally, the first mounting ring (805) being provided with a plurality of first mounting grooves (902), the first mounting grooves (902) being provided with mounting steel balls (904), and the first mounting ring (805) being provided with an adjustment assembly.

9. A plasma combustion torch wind disk according to claim 8, characterized in that: The adjustment assembly comprises a mounting sleeve (905), wherein the mounting sleeve (905) is arranged outside the mounting ring 1 (805), and a mounting spring (906) is arranged between the mounting ring 1 (805) and the mounting sleeve (905).

10. The plasma combustion torch wind disk according to claim 1, characterized in that: A mounting frame (6) is arranged inside the second mounting ring (901) in the mounting assembly (9), and the spherical center electrode (5) is arranged on the mounting frame (6).

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