Device for cooling an alloy material after heat treatment

Abstract

The utility model relates to an alloy material cooling device after heat treatment, including box body, cooling assembly, waste gas filtering mechanism, the cooling assembly installs in the inside wall both sides in the box body for to the alloy material surface after heat treatment liquid cooling, the waste gas filtering mechanism installs at the box top for to the cooling exhaust gas carries out the filtration treatment, starts centrifugal fan, and the exhaust gas is inhaled into the intake pipe, and is discharged by the filter core in by centrifugal fan exhaust end, since the filter core both end portions are all conical groove, with the one end conical seat of intake pipe adaptation, also with centrifugal fan intake end conical seat adaptation, and conical seat surface fixed mounting has conical rubber layer, further improves the leakproofness, in spring push push block, make the intake pipe extrusion filter core, and the filter core is extruded between the intake pipe and centrifugal fan intake, produces extrusion pressure, and conical seat and conical groove cooperate, and the leakproofness is strengthened, and the filter core surface is equipped with transparent observation window, and the filter core service life is observed conveniently.

Description

Technical Field

[0001] This utility model relates to the field of alloy material production and processing technology, specifically to a cooling device for alloy materials after heat treatment. Background Technology

[0002] Heat treatment is a crucial step in improving material properties, and the cooling process after heat treatment directly affects the final quality of the alloy material. Currently, commonly used cooling methods in the industry include air cooling, water cooling, or spray cooling, among which spray cooling is widely used due to its high cooling efficiency and precise temperature control.

[0003] However, after high-temperature heat treatment, alloy materials retain oxide scale, oil, and other impurities on their surface. In liquid cooling scenarios, the spray cooling process generates a large amount of waste gas containing impurities when the high-temperature material comes into contact with the coolant. If this waste gas is directly discharged into the workshop environment, it will not only pollute the air and affect the health of operators, but may also corrode workshop equipment due to the corrosive components contained in the waste gas, increasing equipment maintenance costs. Most existing cooling devices lack dedicated waste gas treatment mechanisms, and even those equipped with simple filtration structures suffer from incomplete filtration and waste gas leakage, making it difficult to meet environmental protection requirements and workshop production environment standards.

[0004] In the exhaust gas filtration process, the filter element is the core component. Its performance and ease of replacement directly affect the filtration effect and equipment operating efficiency. Traditional filter elements are often connected to components such as air inlet pipes and fans by flat bonding or simple snap-fit, which has poor sealing performance and is prone to exhaust gas leakage from the connection, resulting in a significant reduction in filtration effect. Therefore, we need to provide a cooling device for alloy materials after heat treatment. Utility Model Content

[0005] The purpose of this utility model is to provide a cooling device for alloy materials after heat treatment. The top of the box is equipped with an exhaust gas filtration mechanism, which can adsorb and filter the exhaust gas generated after liquid cooling in the box, and facilitate the replacement of the filter element. The filter element is located between the air inlet pipe and the centrifugal fan. The end of the filter element is conical, which facilitates installation and improves the sealing performance, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for alloy materials after heat treatment, comprising:

[0007] The enclosure includes a cooling assembly and an exhaust gas filtration mechanism. The cooling assembly is installed on both sides of the inner wall of the enclosure and is used to spray liquid to cool the surface of the alloy material after heat treatment. The exhaust gas filtration mechanism is installed on the top of the enclosure and is used to filter the exhaust gas generated during cooling.

[0008] The exhaust gas filtration mechanism includes a filter element, a centrifugal fan, an air inlet pipe, and mounting components. The air inlet pipe is installed on the top of the housing, the filter element is installed between the air inlet pipe and the centrifugal fan, and the mounting components are located on the top of the housing for fixing the filter element between the air inlet pipe and the centrifugal fan.

[0009] Preferably, the filter element has conical grooves on both sides, and the centrifugal fan inlet end and the inlet pipe outlet end are both provided with conical seats, the conical seats being adapted to the conical grooves.

[0010] Preferably, a conical adhesive layer is fixedly installed on the surface of the conical seat, and the conical adhesive layer is located between the conical seat and the conical groove.

[0011] Preferably, the filter element has a transparent observation window embedded in its surface, and two brackets for supporting the filter element are fixedly installed on the top of the housing to achieve coaxiality between the filter element, the air inlet pipe, and the air inlet end of the centrifugal fan.

[0012] Preferably, the mounting component includes a frame, a push block, a slide rod, and a spring. The frame is fixed to the top of the housing and the slide rod is fixedly installed inside. The push block is slidably mounted on the surface of the slide rod. A spring is provided between the push block and the inner wall of the frame. The push block is fixedly installed with the air intake pipe.

[0013] Preferably, a corrugated pipe is installed inside the air intake pipe, and a transmission component for adjusting the movement of the push block is provided on the surface of the frame.

[0014] Preferably, an abutment bolt is threaded onto one side of the frame, and the abutment bolt is used to tighten and limit the push block.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model features an exhaust gas filtration mechanism at the top of the housing, capable of adsorbing and filtering the exhaust gas generated after liquid cooling within the housing. It also facilitates filter element replacement. The filter element is located between the inlet pipe and the centrifugal fan, with a tapered end for easy installation and improved sealing. The exhaust gas filtration mechanism at the top of the housing directly adsorbs and filters the exhaust gas generated by liquid cooling, preventing the direct emission of exhaust gas containing impurities and corrosive components. This effectively improves workshop air quality, reduces the impact on operator health and equipment corrosion, and meets environmental protection requirements. The tapered design of the filter element end ensures a precise fit with the inlet pipe's fitting structure, significantly enhancing the sealing at the connection point compared to traditional flat connections. This prevents exhaust gas leakage and ensures stable and reliable filtration. The tapered structure also reduces installation difficulty and improves operational convenience. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a partial three-dimensional structural view of the present invention;

[0019] Figure 3 This is a partial exploded perspective view of the structure of this utility model;

[0020] Figure 4 This is a perspective view of the mounting component of this utility model.

[0021] In the diagram: 1. Housing; 2. Cooling assembly; 3. Exhaust gas filtration mechanism; 31. Filter element; 32. Centrifugal fan; 33. Inlet pipe; 34. Mounting component; 341. Frame; 342. Push block; 343. Slide rod; 344. Spring; 4. Conical groove; 5. Conical seat; 6. Conical rubber layer; 7. Transparent observation window; 8. Bracket; 9. Corrugated pipe; 10. Abutment bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a cooling device for alloy materials after heat treatment, comprising:

[0024] Box 1, cooling assembly 2, and exhaust gas filtration mechanism 3. The cooling assembly 2 is installed on both sides of the inner wall of the box 1 and is used to spray liquid to cool the surface of the alloy material after heat treatment. The exhaust gas filtration mechanism 3 is installed on the top of the box 1 and is used to filter the exhaust gas generated during cooling.

[0025] The exhaust gas filtration mechanism 3 includes a filter element 31, a centrifugal fan 32, an air inlet pipe 33, and a mounting component 34. The air inlet pipe 33 is installed on the top of the housing 1, the filter element 31 is installed between the air inlet pipe 33 and the centrifugal fan 32, and the mounting component 34 is provided on the top of the housing 1 for fixing the filter element 31 between the air inlet pipe 33 and the centrifugal fan 32.

[0026] Specifically, an exhaust gas filtration mechanism 3 is installed at the top of the housing 1. This mechanism can adsorb and filter the exhaust gas generated after liquid cooling inside the housing 1, and facilitates the replacement of the filter element 31. The filter element 31 is located between the air inlet pipe 33 and the centrifugal fan 32. The end of the filter element 31 is conical, which facilitates installation and improves sealing. The exhaust gas filtration mechanism 3 at the top of the housing 1 can directly adsorb and filter the exhaust gas generated by liquid cooling, avoiding the direct emission of exhaust gas containing impurities and corrosive components. This effectively improves the air quality in the workshop, reduces the impact on the health of operators and the corrosion of equipment, and meets environmental protection requirements. The conical design at the end of the filter element 31 precisely fits the fitting structure of the air inlet pipe 33. Compared with the traditional flat connection, this significantly enhances the sealing of the connection, prevents exhaust gas leakage, and ensures stable and reliable filtration effect. At the same time, the conical structure also reduces the difficulty of installation and improves the ease of operation.

[0027] The filter element 31 has conical grooves 4 on both sides, and the centrifugal fan 32 and the air inlet pipe 33 are both provided with conical seats 5, which are adapted to the conical grooves 4.

[0028] Furthermore, since both ends of the filter element 31 are tapered grooves 4, which are compatible with the tapered seat 5 at one end of the air inlet pipe 33 and also compatible with the tapered seat 5 at the air inlet end of the centrifugal fan 32, it is convenient to install the filter element 31.

[0029] A conical adhesive layer 6 is fixedly installed on the surface of the conical seat 5, and the conical adhesive layer 6 is located between the conical seat 5 and the conical groove 4;

[0030] It is worth noting that the conical adhesive layer 6 is made of high-temperature resistant and chemically corrosion-resistant silicone rubber. This silicone rubber has a Shore hardness of 50-60 HA, and its physical properties change by no more than 10% even after long-term use at 200℃. During the operation of the cooling device, the conical adhesive layer 6 can tightly fit into the tiny gaps between the conical seat 5 and the conical groove 4, effectively filling any possible gaps and preventing exhaust gas from leaking from the connection point. This ensures the airtightness of the filtration system, thereby improving the adsorption and filtration effect of exhaust gas and preventing exhaust gas containing impurities and corrosive components from escaping and causing damage to the surrounding environment and equipment.

[0031] The filter element 31 has a transparent observation window 7 embedded in its surface. Two brackets 8 are fixedly installed on the top of the housing 1 to support the filter element 31, so as to make the filter element 31 coaxial with the air inlet pipe 33 and the air inlet end of the centrifugal fan 32.

[0032] It should be noted that the transparent observation window 7 is made of high-temperature resistant, high-transparency quartz glass with a thickness of 3-5mm and a visible light transmittance of ≥90%. The transparent observation window 7 and the filter element 31 are sealed together using a high-temperature sealant with a temperature resistance range of 150℃-250℃ and a shear strength of ≥5MPa. Operators can visually observe the color changes and impurity accumulation of the adsorbent material inside the filter element 31 through the transparent observation window 7, thereby accurately determining the service life of the filter element 31. When the color of the adsorbent material inside the filter element 31 becomes significantly darker and impurities accumulate excessively, affecting the adsorption and filtration effect, the filter element 31 can be replaced promptly to ensure the continuous and stable operation of the exhaust gas treatment function of the cooling device and avoid exhaust gas emissions failing to meet standards due to filter element 31 failure.

[0033] The bracket 8 is made of stainless steel with a chrome-plated surface, the thickness of which is 0.02-0.05mm. The bracket 8 is arc-shaped to fit the bottom of the filter element 31, with an arc angle of 120°-150°. During filter element 31 installation, the bracket 8 stably supports the filter element 31, ensuring it is coaxial with the air inlet pipe 33 and the air inlet end of the centrifugal fan 32. This guarantees even airflow through the filter element 31 and prevents uneven airflow distribution caused by tilting of the filter element 31, which would affect the exhaust gas filtration effect. Simultaneously, the stainless steel and chrome-plated bracket 8 has excellent corrosion resistance, enabling it to adapt to the complex working environment inside the cooling device, extending its service life and ensuring the stability and reliability of the filter element 31 installation.

[0034] Mounting component 34 includes frame 341, push block 342, slide rod 343 and spring 344. Frame 341 is fixed to the top of box 1 and slide rod 343 is fixedly installed inside. Push block 342 is slidably installed on the surface of slide rod 343. Spring 344 is provided between push block 342 and inner wall of frame 341. Push block 342 is fixedly installed with air intake pipe 33.

[0035] Furthermore, spring 344 is a compression spring made of piano wire with a wire diameter of 2-3mm. During operation of the cooling device, the elastic force generated by spring 344 pushes pusher block 342, thereby causing air inlet pipe 33 to move towards filter element 31, firmly pressing filter element 31 between air inlet pipe 33 and air inlet of centrifugal fan 32. The elastic force of spring 344 ensures that conical seat 5 and conical groove 4 always fit tightly, enhancing the sealing of the connection and preventing exhaust gas leakage. At the same time, the piano wire spring 344 has high strength and good elastic stability, and can continuously and stably provide the required compressive force during long-term operation, ensuring reliable operation of exhaust gas filtration mechanism 3 of the cooling device.

[0036] A bellows 9 is installed inside the air intake pipe 33, and a transmission component for adjusting the movement of the push block 342 is provided on the surface of the frame 341.

[0037] The transmission components include a pull frame and a transmission rod. The pull frame is rotatably mounted on the top of the housing 1 via a pin, and its surface is hardened to a hardness of HRC50-55. One end of the transmission rod is connected to the pull frame via a ball joint, and the other end is rotatably connected to the push block 342 via a pin. The pin connecting the transmission rod and the push block 342 has a diameter of 6-8mm and is also hardened. When the filter element 31 needs to be replaced, the pull frame is rotated, and the pull frame drives the push block 342 to slide on the slide rod 343 via the transmission rod, separating the air intake pipe 33 from the filter element 31. The operation is convenient and quick. This transmission structure allows for precise control of the movement of the push block 342, enabling quick and accurate disassembly of the air intake pipe 33 and the filter element 31, improving the filter element 31 replacement efficiency and reducing the downtime of the cooling device.

[0038] The bellows 9 is made of stainless steel (304 stainless steel) with a wall thickness of 0.2-0.3mm. The corrugation pitch is 5-8mm, and the corrugation height is 3-5mm. The bellows 9 is installed inside the intake pipe 33, and its two ends are welded to the inner wall of the intake pipe 33. The welding is done using argon arc welding, resulting in a smooth, strong weld free of defects such as porosity and cracks. During the movement of the intake pipe 33 with the pusher block 342, the bellows 9 can adapt to the deformation of the intake pipe 33, ensuring that the gas conveying function of the intake pipe 33 is not affected. Simultaneously, the stainless steel bellows 9 has good corrosion resistance and flexibility, enabling it to work stably for a long time in complex working environments, ensuring the normal operation of the exhaust gas conveying system of the cooling device and providing stable airflow conditions for the adsorption and filtration of exhaust gas.

[0039] A locking bolt 10 is threaded on one side of the frame 341. The locking bolt 10 is used to tighten and limit the push block 342.

[0040] The threaded connection between the contact bolt 10 and the frame 341 adopts a modified triangular thread with a self-locking function. The thread helix angle is 1.5°-2.5°. After phosphating, the thread surface is coated with an 8-12μm Dacromet coating and impregnated with silicone sealant to form a sealing layer. After the push block 342 moves to the appropriate position to separate the air intake pipe 33 from the filter element 31, the contact bolt 10 is tightened so that its end abuts against the push block 342, limiting the push block 342 and preventing it from moving due to unexpected factors during the replacement of the filter element 31, which would affect the filter element 31 replacement operation.

[0041] The centrifugal fan 32 involved in this application is implemented using existing mature technology and is connected to an external PLC controller and power supply. This is a conventional technical means in this field, so its specific circuit connection, control logic and working process will not be described in detail.

[0042] All threaded mounting surfaces in this application utilize a modified triangular thread with a self-locking function. The thread helix angle is designed to be 1.5°-2.5° to enhance the anti-loosening effect. After phosphating, the thread surface is coated with an 8-12μm Dacromet coating and impregnated with silicone sealant to form a sealing layer, resulting in excellent corrosion resistance. In addition, the thread can effectively expel dust, and it can still be used normally even if a small amount of dust adheres to it.

[0043] This device has hooks on the top of the inner wall of the housing 1 for placing the heat-treated alloy materials. The housing 1 has a door and a flow hole at the bottom for water drainage. The cooling assembly 2 includes a spray plate and a liquid supply pipe. Water is supplied through the liquid supply pipe to the spray plate via an external water supply component to cool the alloy materials, generating fumes. An air valve is installed on the door to replenish air into the housing 1. The centrifugal fan 32 is activated to draw the exhaust gas into the inlet pipe 33, through the filter element 31, and out of the exhaust end of the centrifugal fan 32. Since both ends of the filter element 31 have conical grooves 4, they are compatible with the conical seat 5 at one end of the inlet pipe 33 and also with the conical seat 5 at the inlet end of the centrifugal fan 32. A conical adhesive layer 6 is fixedly installed on the surface of the conical seat 5 to further improve the sealing performance. Spring 344... Pushing the pusher block 342 causes the air inlet pipe 33 to squeeze the filter element 31. The filter element 31 is squeezed between the air inlet pipe 33 and the air inlet of the centrifugal fan 32, generating compressive force. The conical seat 5 and the conical groove 4 cooperate to enhance the sealing performance and facilitate installation. The surface of the filter element 31 is provided with a transparent observation window 7 for easy observation of the service life of the filter element 31. The transmission components are a pull frame and a transmission rod. The pull frame is rotatably mounted on the top of the housing 1, and the transmission rod is rotatably mounted between the pull frame and the pusher block 342. Rotating the pull frame can drive the transmission rod to swing, so that the pusher block 342 and the air inlet pipe 33 can move, and the air inlet pipe 33 can be separated from the filter element 31 for easy replacement of the filter element 31. The air inlet rod is provided with a bellows 9 to allow the air inlet pipe 33 to deform. A stop bolt 10 is provided to limit the pusher block 342 as a safety measure.

[0044] It adopts a cylindrical or square modular design, with an outer high-strength heat-resistant plastic / metal shell (with quick-release buckles and sealing rings), and an internal composite of 5 layers of filter materials with different functions. Each layer is fixed by a support mesh or hot melt adhesive to ensure uniform airflow and prevent material from falling off.

[0045] The pre-filter layer consists of a high-temperature resistant metal mesh (304 stainless steel, pore size 50-100μm) and a fiberglass mat (2-3mm thick). This intercepts large particulate impurities in the exhaust gas (such as metal oxide scale fragments detached after heat treatment and oil droplets formed by coolant atomization), preventing clogging of subsequent adsorption layers. The metal mesh is high-temperature resistant (can withstand exhaust gas temperatures above 150℃), while the fiberglass mat enhances the initial adsorption of fine oil mist, reducing the load on subsequent layers.

[0046] The condensation guide layer is made of corrugated aluminum foil (with a hydrophilic / oleophilic surface treatment), forming a labyrinthine channel between the layers. Utilizing the high thermal conductivity of the aluminum foil, the high-temperature exhaust gas (80-150℃) is rapidly cooled as it passes through. The oil vapor and water vapor in the gas condense into small liquid droplets, which flow along the corrugated channels to the liquid collection tank at the bottom of the filter element 31 (a drain port is provided at the bottom of the housing for periodically draining condensed oil / water). This reduces the amount of gaseous oil entering the adsorption layer and extends the service life of the adsorption material.

[0047] The high-efficiency adsorption layer consists of composite adsorption particles (activated carbon + molecular sieve + modified silica gel, mixed in a 5:3:2 ratio), filled in a breathable non-woven bag. The activated carbon adsorbs non-polar volatile organic compounds (such as alkanes and aromatics); the molecular sieve (type 13X) adsorbs polar small molecules (such as water vapor and methanol); and the modified silica gel (with added nano zinc oxide) enhances the adsorption of odorous gases (such as sulfides) and has certain antibacterial properties to prevent mold growth.

[0048] The deep purification layer is made of honeycomb activated carbon fiber (ACF), with a thickness of 5-8 mm and a porosity >80%. The activated carbon fiber has a large specific surface area (>1500 m²). 2 / g), to deeply adsorb residual trace organic gases (such as volatile additives in cooling oil), ensuring that the pollutant concentration at the outlet is ≤10mg / m³. 3 (Meets workshop air quality standards). The honeycomb structure reduces air resistance and avoids excessive pressure loss in exhaust gas due to filtration.

[0049] The support and protective layer is a high-strength polyester fiber mesh (temperature resistance ≥120℃) + antibacterial non-woven fabric, which supports the entire filter element 31 structure and prevents the adsorbent material from loosening due to airflow impact; the antibacterial non-woven fabric intercepts adsorbent particles that may fall off, avoiding secondary pollution, and at the same time inhibits the reproduction of bacteria inside the filter element 31.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for alloy materials after heat treatment, characterized in that, include: Box body (1), cooling assembly (2), exhaust gas filtration mechanism (3). The cooling assembly (2) is installed on both sides of the inner wall of the box body (1) for spraying liquid to cool the surface of the alloy material after heat treatment. The exhaust gas filtration mechanism (3) is installed on the top of the box body (1) for filtering the exhaust gas generated by cooling. The exhaust gas filtration mechanism (3) includes a filter element (31), a centrifugal fan (32), an air inlet pipe (33), and a mounting component (34). The air inlet pipe (33) is installed on the top of the housing (1). The filter element (31) is installed between the air inlet pipe (33) and the centrifugal fan (32). The mounting component (34) is located on the top of the housing (1) and is used to fix the filter element (31) between the air inlet pipe (33) and the centrifugal fan (32).

2. The cooling device for alloy materials after heat treatment according to claim 1, characterized in that: The filter element (31) has conical grooves (4) on both sides. The centrifugal fan (32) inlet end and the inlet pipe (33) outlet end are both provided with conical seats (5). The conical seats (5) are adapted to the conical grooves (4).

3. The cooling device for alloy materials after heat treatment according to claim 2, characterized in that: A conical adhesive layer (6) is fixedly installed on the surface of the conical seat (5), and the conical adhesive layer (6) is located between the conical seat (5) and the conical groove (4).

4. The cooling device for alloy materials after heat treatment according to claim 1, characterized in that: The filter element (31) has a transparent observation window (7) embedded in its surface. The top of the housing (1) is fixedly equipped with two brackets (8) for supporting the filter element (31) so as to achieve coaxiality between the filter element (31) and the air inlet pipe (33) and the air inlet end of the centrifugal fan (32).

5. A cooling device for alloy materials after heat treatment according to claim 1, characterized in that: The mounting component (34) includes a frame (341), a push block (342), a slide rod (343), and a spring (344). The frame (341) is fixed to the top of the box (1), and the slide rod (343) is fixedly installed inside. The push block (342) is slidably installed on the surface of the slide rod (343). A spring (344) is provided between the push block (342) and the inner wall of the frame (341). The push block (342) is fixedly installed with the air intake pipe (33).

6. A cooling device for alloy materials after heat treatment according to claim 5, characterized in that: The intake pipe (33) is equipped with a bellows (9), and the surface of the frame (341) is provided with a transmission component for adjusting the movement of the push block (342).

7. A cooling device for alloy materials after heat treatment according to claim 6, characterized in that: A locking bolt (10) is threaded on one side of the frame (341), and the locking bolt (10) is used to tighten and limit the push block (342).

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