Uniform injection and flow guide system of plate quenching machine

Abstract

The utility model discloses a kind of uniform injection and flow guide system of plate quenching machine, install on plate quenching machine, and include: mother pipe;Branch pipe, including base body and backflow cover;Injection assembly, install in mother pipe end portion;Injection assembly includes injection base, a pair of injection clamping plate oppositely arranged and drive mechanism;Injection base is fixed in mother pipe end portion;Injection clamping plate is slidably connected on injection base;Drive mechanism includes motor and screw rod;Wherein, when motor rotates clockwise, drive oppositely arranged injection clamping plate moves towards each other, to make the fan-shaped circle central angle of fluid injection from mother pipe increase;When motor rotates counterclockwise, drive oppositely arranged injection clamping plate moves away from each other, to make the fan-shaped circle central angle of fluid injection from mother pipe decrease.The system can promote the rapid, uniform mixing of multi-component fluid under the premise of not significantly increasing system pressure loss, and can dynamically, accurately adjust injection angle.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology for metal materials, and in particular to a uniform spraying and guiding system for a plate quenching machine. Background Technology

[0002] In the field of heat treatment of metallic materials, quenching is one of the key processes for improving the mechanical properties of sheet metal. This process transforms austenitic structures into martensite or bainite through rapid cooling. The sheet metal quenching machine, as the core equipment for implementing this process, directly affects the uniformity of cooling, the consistency of microstructure transformation, and the flatness of the final product through the performance of its spray and flow guiding systems. In current industrial applications, the uniformity of mixing of the quenching medium and additives, the coverage of the spray flow field, and the impact strength are important parameters affecting the quenching quality.

[0003] In quenching media treatment, common systems deliver the main quenching fluid and additives separately through independent pipelines, and perform initial fusion in a mixing chamber. However, this static mixing method may suffer from insufficient fluid shear force and limited mixing efficiency, resulting in a need to improve the uniformity of the medium concentration distribution in the flow field, which in turn affects the uniformity of the cooling rate on the plate surface.

[0004] Therefore, it is necessary to design a flow guiding mechanism that can dynamically and precisely adjust the injection angle and optimize the internal flow state. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a uniform spraying and guiding system for a plate quenching machine. This system can promote the rapid and uniform mixing of multi-component fluids without significantly increasing the system pressure loss, and can dynamically and precisely adjust the spray angle.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a uniform spraying and guiding system for a plate quenching machine, which is installed on the plate quenching machine and includes:

[0008] The main pipe, one end of which is used to connect to the water pump to guide the flow of fluid;

[0009] A branch pipe is used to add additives into the main pipe; the branch pipe includes a base and a counterflow shroud; one end of the base is used to connect to the additive source, and the other end passes through the side wall of the main pipe and is inserted into the interior of the main pipe, and is bent towards the direction of fluid flow in the main pipe; the counterflow shroud is fixedly connected to the end of the base by a support column, and is used to change the flow direction of the fluid ejected from the base, so that the flow direction of the fluid ejected from the base is opposite to the original flow direction of the fluid in the main pipe, so as to enhance the mixing effect of the two fluids;

[0010] A spraying assembly is installed at the end of the main tube. The spraying assembly includes a spraying base, a pair of opposing spraying clamps, and a drive mechanism. The spraying base is fixed to the end of the main tube and has a slide rail. The spraying clamps cooperate with the slide rails through grooves to form a sliding pair, thereby allowing the spraying clamps to be slidably connected to the spraying base. The drive mechanism includes a motor and a lead screw mounted on the output shaft of the motor. The lead screw cooperates with screw holes on the opposing spraying clamps to form a screw-nut pair.

[0011] in,

[0012] When the motor rotates clockwise, it drives the oppositely arranged injection clamps to move towards each other, thereby increasing the central angle of the fan-shaped flow of the fluid injected from the main pipe.

[0013] When the motor rotates counterclockwise, it drives the oppositely arranged injection clamps to move in opposite directions, thereby reducing the central angle of the fan-shaped flow of the fluid injected from the main pipe.

[0014] Furthermore, the jet clamp includes a flow guide for increasing fluid pressure and a flow rectifyer for converting columnar fluid into a fan-shaped flow; the flow rectifyer is located on the side of the flow guide away from the main pipe.

[0015] Furthermore, the included angle between the drainage section and the rectifier section ranges from 120° to 160°.

[0016] Furthermore, the included angle between the drainage section and the rectifier section is 150°.

[0017] Furthermore, the spray clamp further includes:

[0018] An elastic portion is disposed on both sides of the drainage portion of the spray clamp and extends to the opposite side of the spray clamp;

[0019] In this configuration, two elastic portions on a pair of oppositely arranged spray clamps abut against each other to form a sealed space, preventing fluid leakage from the gap between the drainage portions.

[0020] Furthermore, the spraying assembly further includes:

[0021] A controller, electrically connected to the motor of the drive mechanism, is used to control the pair of oppositely arranged spray clamps to move closer or further apart.

[0022] Furthermore, the spray base further includes:

[0023] Mounting plate, used to mount the spray clamp and the drive mechanism;

[0024] A pressure booster valve is installed inside the main pipe, and the cross-section of its flow channel gradually decreases along the direction of fluid flow.

[0025] Furthermore, the flow passage of the pressure booster valve is truncated conical.

[0026] This utility model has at least the following advantages or beneficial effects:

[0027] This invention employs a branch pipe structure with a specific bending direction and a counterflow shield. This structure allows the additive jet to flow in the opposite direction to the main flow in the parent pipe, enhancing the shearing and mixing of the fluids. It also utilizes an adjustable jet clamp driven by a motor, lead screw, and sliding pair. This structure allows adjustment of the fan-shaped angle of the fluid jet by changing the clamp spacing. Overall, this invention promotes the uniformity of mixing between the quenching medium and the additive, and provides an adjustable jet flow field to adapt to different process requirements.

[0028] This invention employs a flow-guiding structure in the jet clamp, which serves to converge the fluid and increase the flow pressure; it also employs a flow-rectifying structure, which guides the columnar jet step by step and expands it into a fan-shaped flow field. Overall, this invention optimizes the fluid flow process from pressurization to shaping, contributing to the formation of a stable and uniform fan-shaped jet surface.

[0029] This invention employs a controller electrically connected to the drive mechanism, which controls the rotation of the motor. Overall, this invention enables automated adjustment of the spray clamp spacing, improving the ease of system operation and adjustment. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the uniform spraying and guiding system of a plate quenching machine;

[0032] Figure 2 A schematic diagram of the branch pipe structure (perspective view);

[0033] Figure 3 This is a schematic diagram of the spray assembly structure;

[0034] Figure 4 for Figure 3 A front view (perspective view) of the injection assembly;

[0035] Figure 5 for Figure 3 Right view (perspective) of the injection component.

[0036] Figure label:

[0037] 1-Mother tube;

[0038] 2-Branch pipe; 21-Base; 22-Reverse flow shield; 23-Support column;

[0039] 3-Spray assembly; 31-Spray base; 311-Slide rail; 312-Mounting plate; 313-Pressure booster valve; 32-Spray clamp; 321-Slide groove; 322-Screw hole; 323-Drainage section; 324-Rectifying section; 325-Elastic section; 33-Drive mechanism; 331-Motor; 332-Lead screw. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0042] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0043] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various parts or elements of this utility model and do not specifically refer to any part or element in this utility model. They should not be construed as limitations on this utility model.

[0044] In this utility model, terms such as "fixed", "connected", and "linked" should be interpreted broadly, indicating that it can be a fixed connection, an integral connection, or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For relevant scientific researchers or technicians in this field, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0045] The embodiments of this utility model will be described in detail below.

[0046] This utility model discloses a uniform spraying and guiding system for a plate quenching machine. The system is installed on the plate quenching machine and is used to uniformly cool the plate during the heat treatment process.

[0047] This embodiment of the invention employs a branch pipe 2 structure, in which the base 21 extends into the main pipe 1 and bends towards the fluid direction. Combined with the counterflow shield 22, this causes the additive jet to flow in the opposite direction to the mainstream of the main pipe 1. This structure promotes mixing by increasing the shear force between the fluids. Simultaneously, the spray assembly 3 is driven by a motor 331 to drive a lead screw 332, which in turn causes the spray clamps 32 to slide along the slide rail 311. This structure allows for continuous adjustment of the spacing between the spray clamps 32, thereby changing the fan-shaped central angle of the fluid outlet. Overall, the combination of these structures enables the system to dynamically adjust the spray range according to the plate size and process requirements, and improves the uniformity of the medium during the mixing stage, laying the foundation for subsequent uniform cooling. Specific details are as follows:

[0048] Figure 1 This is a schematic diagram of the uniform spraying and guiding system of a plate quenching machine; Figure 2 This is a schematic diagram of the branch pipe structure.

[0049] The main pipe 1 is the primary fluid channel of the system, with one end connected to a water pump to guide the flow of the main quenching fluid. The function of the main pipe 1 is to serve as the main flow channel for the quenching medium, ensuring directional fluid delivery. In this embodiment, the main pipe 1 is made of stainless steel with a circular cross-section. In other embodiments, the main pipe 1 can also be a pipe with a rectangular or elliptical cross-section, and the material can be selected from carbon steel, aluminum alloy, or composite materials. Carbon steel offers a lower cost, while aluminum alloy provides strength while reducing weight. The main pipe 1 is connected to the water pump via flange or welding to ensure a tight seal.

[0050] Branch pipe 2 is used to add additives into main pipe 1 to adjust the properties of the quenching medium. Branch pipe 2 includes a base 21 and a counterflow shroud 22.

[0051] One end of the substrate 21 is used to connect to the additive source, and the other end passes through the side wall of the mother pipe 1 and is inserted into the inside of the mother pipe 1, and is bent in the direction of fluid flow inside the mother pipe 1. The function of the substrate 21 is to guide the additive jet into the main fluid, and its bent design helps to reduce flow resistance.

[0052] The counter-flow shield 22 is fixedly connected to the end of the base 21 via support pillars 23, and is used to change the flow direction of the fluid ejected from the base 21, so that the flow direction of the fluid ejected from the base 21 is opposite to the original flow direction of the fluid in the main pipe 1. The function of the counter-flow shield 22 is to enhance the shear mixing effect between fluids by generating a reverse jet. In this embodiment, the counter-flow shield 22 adopts a conical structure and is manufactured by stamping. In other embodiments, the counter-flow shield 22 can also be a hemispherical or disc-shaped structure. Due to the reverse jet design of the counter-flow shield 22, the shear force between fluids is increased, thereby promoting the uniformity of mixing between the additive and the main quenching fluid. The number of support pillars 23 is 2 to 4, preferably 4.

[0053] Figure 3 This is a schematic diagram of the spray assembly structure; Figure 4 for Figure 3 A front view (perspective view) of the injection assembly; Figure 5 for Figure 3 Right view (perspective) of the injection component.

[0054] The injection assembly 3 is installed at the end of the main pipe 1 and is used to control the fluid injection pattern. The injection assembly 3 includes an injection base 31, a pair of opposing injection clamps 32, and a drive mechanism 33.

[0055] The spray base 31 is fixed to the end of the main pipe 1, and its function is to support and guide the movement of the spray clamp 32. A slide rail 311 is provided on the spray base 31. The cross-sectional shape of the slide rail 311 is rectangular, trapezoidal or hook-shaped.

[0056] The injection base 31 further includes a mounting plate 312 for mounting the injection clamp 32 and the drive mechanism 33. The mounting plate 312 provides a stable support platform. The mounting plate 312 is made of steel plate. A pressure boosting valve 313 is installed inside the main pipe 1, and the cross-section of its flow channel gradually decreases along the fluid flow direction. The function of the pressure boosting valve 313 is to pre-compress the fluid in the main pipe 1, increasing the injection speed. In this embodiment, the flow channel of the pressure boosting valve 313 is a truncated cone shape; this shape can guide the fluid to accelerate smoothly. The inlet diameter of the pressure boosting valve 313 matches the inner diameter of the main pipe 1; the outlet diameter ranges from 50% to 70% of the inlet diameter, preferably 60%. In other embodiments, the flow channel of the pressure boosting valve 313 can also be stepped or tapered, and the material can be stainless steel or cast iron. Stainless steel provides corrosion resistance, while cast iron is less expensive. Due to the tapering design of the pressure boosting valve 313, the fluid is accelerated as it passes through, thereby increasing the injection kinetic energy and improving the impact heat transfer effect.

[0057] The spray clamp 32 engages with the slide rail 311 via a groove 321, forming a sliding pair, thereby allowing the spray clamp 32 to be slidably connected to the spray base 31. The function of the slide rail 311 and the groove 321 is to ensure smooth linear movement of the spray clamp 32. The width of the groove 321 matches the width of the slide rail 311.

[0058] The jet clamp 32 includes a guide section 323 for increasing fluid pressure and a rectifying section 324 for converting columnar fluid into a fan-shaped flow. The rectifying section 324 is located on the side of the guide section 323 away from the main pipe 1. The function of the guide section 323 is to increase the fluid velocity by converging the flow channel; the function of the rectifying section 324 is to form a uniform fan-shaped jet by gradually expanding its shape. In this embodiment, the angle between the guide section 323 and the rectifying section 324 is 150°; this angle can be matched with the natural diffusion characteristics of the fluid to avoid flow separation; in other embodiments, the angle between the guide section 323 and the rectifying section 324 can be in the range of 120° to 160°; this angle design helps the fluid to smoothly change direction and reduces energy loss. The surface roughness of the guide section 323 and the rectifying section 324 is controlled to be below Ra 1 micrometer to reduce flow resistance. Due to the converging design of the guide section 323, the fluid is accelerated before entering the rectifying section 324, thereby increasing the jet pressure; the gradually expanding shape of the rectifying section 324 guides the fluid to be evenly distributed, forming a stable fan-shaped flow field.

[0059] The spray clamp 32 further includes elastic portions 325 disposed on both sides of the flow-guiding portions 323 of the spray clamp 32 and extending to the opposite side of the spray clamp 32. The two elastic portions 325 on a pair of opposing spray clamps 32 abut against each other to form a sealed space. The function of the elastic portions 325 is to prevent fluid leakage from the gap between the flow-guiding portions 323, ensuring concentrated spray energy. In this embodiment, the elastic portions 325 are made of rubber material; the thickness of the elastic portions 325 ranges from 1 mm to 3 mm, preferably 2 mm. In other embodiments, the elastic portions 325 may also be made of silicone or polyurethane material, wherein silicone material provides high-temperature resistance, while polyurethane material has good elastic recovery properties. The elastic portions 325 are fixed to the spray clamp 32 by adhesive bonding or molding to ensure sealing. The width of the elastic portions 325 ranges from 5 mm to 15 mm, preferably 10 mm, to cover any possible gaps. Due to the abutment design of the elastic part 325, a dynamic seal is maintained during the movement of the clamping plate, reducing fluid loss and thus improving the injection efficiency.

[0060] The spraying assembly 3 further includes a controller electrically connected to the motor 331 of the drive mechanism 33, used to control a pair of oppositely positioned spraying clamps 32 to move closer or further apart. The controller's function is to automate the adjustment of spraying parameters, improving operational convenience. In this embodiment, the controller is a PLC controller; the controller adjusts the speed and direction of the motor 331 using a PID algorithm. In other embodiments, the controller can also be a microprocessor or an embedded system, where a microprocessor provides fast response, while an embedded system is suitable for integrated control. The controller is connected to the motor 331 via cable or wireless communication; the cable is a shielded twisted pair to prevent interference. The controller can programmably set the clamp position parameters, such as automatically adjusting the spraying angle based on the plate width, thereby optimizing quenching uniformity.

[0061] The drive mechanism 33 includes a motor 331 and a lead screw 332 mounted on the output shaft of the motor 331. The lead screw 332 engages with screw holes 322 on the oppositely arranged injection clamping plate 32 to form a screw-nut pair. The function of the drive mechanism 33 is to drive the injection clamping plate 32 to move by rotating the motor 331, thereby adjusting the fluid injection angle. In this embodiment, the motor 331 is a stepper motor; in other embodiments, the motor 331 can also be a servo motor or a DC motor, wherein the servo motor can play a role in precise control, while the DC motor is suitable for low-cost applications.

[0062] When motor 331 rotates clockwise, it drives the oppositely positioned spray clamps 32 to move towards each other, thereby increasing the central angle of the fan-shaped flow of the fluid sprayed from the mother pipe 1. When motor 331 rotates counterclockwise, it drives the oppositely positioned spray clamps 32 to move away from each other, thereby decreasing the central angle of the fan-shaped flow of the fluid sprayed from the mother pipe 1. This adjustment mechanism allows the system to adapt to the quenching requirements of plates with different widths, optimizing the spray coverage range by changing the clamp spacing.

[0063] Specifically, this embodiment of the invention combines a main pipe 1, a branch pipe 2, and a jet assembly 3: the base 21 and the counterflow shroud 22 in the branch pipe 2 enhance the mixing uniformity through reverse jetting; the pressure booster valve 313 increases the fluid pressure; the adjustable jet clamp 32 and the drive mechanism 33 in the jet assembly 3 achieve dynamic control of the jetting angle through a sliding pair and a lead screw and nut pair; the controller achieves automatic adjustment; the flow guide 323 and the flow rectifying part 324 optimize the fluid forming process; and the elastic part 325 reduces leakage loss.

[0064] Overall, the combination of the above structures can improve the uniformity of quenching medium mixing and the coverage of the jet flow field to a certain extent, thereby improving the cooling uniformity of the plate and having a positive effect on improving quenching quality and process adaptability.

[0065] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A uniform spraying and guiding system for a plate quenching machine, installed on the plate quenching machine, characterized in that, include: The main pipe (1) is used to connect a water pump at one end to guide the flow of fluid; Branch pipe (2) is used to add additives into the main pipe (1); the branch pipe (2) includes a base (21) and a counterflow shroud (22); one end of the base (21) is used to connect to the additive source, and the other end passes through the side wall of the main pipe (1) and is inserted into the interior of the main pipe (1), and bends towards the direction of fluid flow in the main pipe (1); the counterflow shroud (22) is fixedly connected to the end of the base (21) by a support (23), and is used to change the flow direction of the fluid ejected from the base (21), so that the flow direction of the fluid ejected from the base (21) is opposite to the original flow direction of the fluid in the main pipe (1), so as to enhance the mixing effect of the two fluids; The spray assembly (3) is installed at the end of the main tube (1); the spray assembly (3) includes a spray base (31), a pair of opposing spray clamps (32), and a drive mechanism (33); the spray base (31) is fixed to the end of the main tube (1) and is provided with a slide rail (311); the spray clamps (32) cooperate with the slide rails (311) through the slide grooves (321) on them to form a sliding pair, so that the spray clamps (32) are slidably connected to the spray base (31); the drive mechanism (33) includes a motor (331) and a lead screw (332) installed on the output shaft of the motor (331); the lead screw (332) respectively cooperates with the screw holes (322) on the opposing spray clamps (32) to form a screw-nut pair; in, When the motor (331) rotates clockwise, it drives the oppositely arranged injection clamps (32) to move towards each other, so that the central angle of the fan-shaped fluid injected from the mother pipe (1) increases; When the motor (331) rotates counterclockwise, it drives the oppositely arranged injection clamps (32) to move in opposite directions, so as to reduce the central angle of the fan-shaped fluid injected from the mother pipe (1).

2. The uniform spraying and guiding system of the plate quenching machine according to claim 1, characterized in that, The jet clamp (32) includes a flow guide (323) for increasing fluid pressure and a flow straightener (324) for converting columnar fluid into fan-shaped flow; the flow straightener (324) is located on the side of the flow guide (323) away from the main pipe (1).

3. The uniform spraying and guiding system of the plate quenching machine according to claim 2, characterized in that, The angle between the drainage section (323) and the rectifier section (324) ranges from 120° to 160°.

4. The uniform spraying and guiding system of the plate quenching machine according to claim 3, characterized in that, The angle between the flow-guiding part (323) and the rectifier part (324) is 150°.

5. The uniform spraying and guiding system of the plate quenching machine according to claim 2, characterized in that, The spray clamp (32) further includes: An elastic portion (325) is provided on both sides of the drainage portion (323) of the spray clamp (32) and extends to the opposite side of the spray clamp (32); In this configuration, two elastic portions (325) on a pair of oppositely arranged spray clamps (32) abut against each other to form a sealed space, preventing fluid from leaking from the gap between the drainage portions (323).

6. The uniform spraying and guiding system of the plate quenching machine according to claim 1, characterized in that, The injection assembly (3) further includes: A controller, electrically connected to the motor (331) of the drive mechanism (33), is used to control a pair of oppositely arranged spray clamps (32) to move closer or further apart.

7. The uniform spraying and guiding system of the plate quenching machine according to claim 1, characterized in that, The spray base (31) further includes: Mounting plate (312) for mounting the spray clamp (32) and the drive mechanism (33). A pressure booster valve (313) is installed inside the main pipe (1), and the cross-section of its flow channel gradually decreases along the direction of fluid flow.

8. The uniform spraying and guiding system of the plate quenching machine according to claim 7, characterized in that, The flow passage of the pressure booster valve (313) is truncated conical.

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