Efficient and automatic oil fume collecting hood device for quenching oil bath

Abstract

The utility model discloses a high-efficiency automatic oil smoke collecting hood device for a quenching oil bath, which relates to the technical field of quenching smoke exhaust and comprises a gas collecting hood main body piece, a movable door and a smoke outlet, the bottom edge of the gas-collecting hood main body piece is fixedly connected with the pool edge of an oil pool, the bottom edge of the gas-collecting hood main body piece is attached to the pool edge of the oil pool after the fixed connection, the smoke exhaust port is fixedly connected with the gas-collecting hood main body piece, and a through channel is formed between the smoke exhaust port and the gas-collecting hood main body piece after the smoke exhaust port and the gas-collecting hood main body piece are connected; the gas-collecting hood main body part is fixedly connected with the movable door, the movable door comprises a guide rail and a door plate sliding along the direction of the guide rail, the gas-collecting hood is fixedly connected with the oil pool, the connected gas-collecting hood is attached to the pool surface of the oil pool, and the movable door is closed, so that quenching oil fume is always located in the gas-collecting hood, and the quenching oil fume is prevented from being blocked. Therefore, the problem of environmental pollution caused by the fact that the working position surface and the workshop are full of oil gas due to drifting of oil fume generated in the quenching process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of quenching smoke exhaust, and in particular to a high-efficiency automatic quenching oil pool oil fume collecting hood device. Background Art

[0002] Quenching fume is a smoke produced during the quenching process that contains harmful substances such as high-temperature grease, coke, and rust. These fumes can cause harm to the environment and human health. In the treatment of quenching fume, the gas collection hood plays a vital role.

[0003] In conventional top-suction fume hoods, the oil fume is generated at the oil surface in the oil pool. Due to the height limit of the equipment in the oil pool, the height of the hood is basically located on the top of the equipment, causing most of the oil fume to drift around the oil pool and into the workshop space. Long-term oil fume drifting makes the walls, ground and equipment around the oil pool covered with oil stains. More serious locations will produce a more serious quenching oil layer, causing environmental pollution. Utility Model Content

[0004] The utility model aims to provide a highly efficient and automated quenching oil pool fume collecting hood device, so as to solve the problem that when collecting the fume generated by the quenching oil pool, the fume of the conventional top suction type fume collecting hood will drift into the surrounding environment, thereby causing environmental pollution.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-efficiency automated quenching oil pool fume collecting hood device comprises: a hood main body, a movable door, and a smoke exhaust port. The bottom edge of the hood main body is fixedly connected to the pool edge of the oil pool and the bottom edge of the hood main body fits together after the fixed connection. The smoke exhaust port is fixedly connected to the hood main body and a through passage is formed between the smoke exhaust port and the hood main body after the connection. The hood main body is fixedly connected to the movable door, and the movable door comprises a guide rail and a door panel that slides along the guide rail.

[0007] In conventional top-suction fume hoods, the location where oil fumes are generated is at the oil surface in the oil pool. Due to the height limit of the equipment in the oil pool, the height of the hood is basically located at the top of the equipment, causing most of the oil fumes to escape around the oil pool and into the workshop space. Long-term oil fume escape causes the walls, floors and equipment around the oil pool to be covered with oil stains. More serious locations will cause a more serious quenching oil layer. By adopting a hood and fixing it to the oil pool, the hood fits the surface of the oil pool after the connection is completed, and then the movable door is closed, so that the oil fume is always located inside the hood, thereby avoiding the oil fume generated during the quenching process. The fume is scattered and the work surface and the interior of the workshop are covered with oil and gas, causing environmental pollution.

[0008] Furthermore, the air collecting hood main body is provided with a notch, and the movable door controls the opening size of the notch by sliding along the guide rail.

[0009] When the air collecting hood is working, workers need to understand the internal operation of the device. By setting a notch and using the notch as an observation port, it is convenient for operators to observe the operation of the equipment when the workpiece is quenched. At the same time, the notch also serves as an air supply port for the air collecting hood. The smaller the notch, the faster the wind speed and the greater the suction force, thereby improving the gas collection effect of the oil fume in the device and preventing the quenching oil fume and heat from the high-temperature workpiece from overflowing.

[0010] Furthermore, the air collecting hood device also includes a placement table for placing quenching workpieces and an air supply device, the placement table is fixedly connected to the outer wall of the oil pool, and the air supply device is used to bring the oil smoke generated by the workpiece on the placement table into the interior of the air collecting hood main body.

[0011] By adding a placement table, which can be a cubic table or a conveyor chain, the high-temperature workpiece to be quenched can be placed or directly transferred to the movable door of the gas collecting hood, which is convenient for clamping by the fixture. The air supply device can increase the flow rate of the quenching oil fume, improve the oil fume emission effect, and ensure that the oil fume on the workpiece will not drift in the external environment.

[0012] Furthermore, the gas collecting hood device also includes an inspection door, which is detachably connected to the gas collecting hood main body and is embedded in the gas collecting hood main body after the connection.

[0013] In order to ensure the normal operation of the inside of the hood, it is necessary to set up a passage for maintenance personnel to enter the inside of the hood. By setting up a maintenance door, it is convenient for maintenance personnel to enter the hood for maintenance. The maintenance door is embedded in the main body of the hood. The purpose is to reduce the air leakage rate of the hood and prevent oil droplets in the hood from penetrating to the outside of the oil pool.

[0014] Furthermore, the distance from the inner wall of the air collecting hood main body to the center of the oil pool is smaller than the distance from the inner wall of the oil pool to the center of the oil pool.

[0015] Some of the oil smoke in the hood will condense into liquid and fall after it touches the inner wall of the hood. By designing the inner wall of the hood main body to be closer to the center of the oil pool than the inner wall of the oil pool, it is ensured that the condensed oil can fall into the oil pool and will not drip into the external environment to cause pollution.

[0016] Furthermore, the air collecting hood device also includes an inspection channel, which is fixedly connected to the air collecting hood main body and a stiffening member is provided at the fixed connection, and the inspection channel is arranged on a side of the movable door close to the oil pool.

[0017] When the movable door fails, especially when the failure occurs at the top position, the maintenance personnel need to go to the top of the air hood for maintenance. By adding a maintenance channel, it is convenient for the maintenance personnel to inspect and maintain the movable door at any time. At the same time, the maintenance channel needs to bear the weight of the maintenance personnel and needs to have a strong bearing capacity. By setting stiffeners, the overall strength and stability of the structure are increased, and the compression, bending and torsion resistance are improved, thereby improving the durability and bearing capacity of the structure to ensure the safety of the maintenance personnel.

[0018] Furthermore, an air regulating valve for adjusting the smoke exhaust flow rate is provided at the smoke exhaust port.

[0019] Normally, the oil smoke discharged from the smoke exhaust port needs to be processed by exhaust gas recovery. In order to ensure the smooth operation of the exhaust gas recovery device, the oil smoke flow discharged from the smoke exhaust port is required to be uniform. By setting an air regulating valve at the smoke exhaust port, the air volume of each smoke exhaust duct is adjusted to achieve uniform air suction in each smoke exhaust duct, so that the subsequent exhaust gas treatment device can operate smoothly.

[0020] Furthermore, the movable door also includes a push-pull rod, which is fixedly connected to the door panel and performs a push-pull action along the guide rail.

[0021] Pushing and pulling the sliding door solely by manpower is time-consuming and laborious. There is also the risk of mechanical injury due to improper force applied by the operator. By using a push-pull rod to operate the sliding door, pushing and pulling the door panel electrically or pneumatically can make the movement of the door panel smoother and more reliable.

[0022] Furthermore, the overall frame structure of the gas collecting hood main body adopts profile columns and / or square tubes.

[0023] As an important component of the entire hood, the main body of the hood needs to have a high structural strength to ensure the stability of the entire hood. The frame structure formed by welding profile columns and square tubes can provide stable load-bearing support. At the same time, the frame structure has strong structural stability and is more solid when subjected to external loads, reducing the risk of structural deformation and tilting, thereby ensuring that the hood will not collapse or lose stability during use.

[0024] Furthermore, the movable door adopts a square tube or angle iron welded frame and the outer surface of the movable door is covered with a galvanized sheet.

[0025] While ensuring the structural stability of the sliding door, it also needs to have certain fire resistance. By using a welded frame of square tubes or angle irons for the sliding door and covering the surface with galvanized sheets, the sliding door's own weight can be reduced while ensuring its own structural strength, reducing the energy loss of the sliding door when pushing and pulling. The galvanized sheet covering the sliding door has a good fire prevention effect, reducing the risk of flames generated during the quenching process entering the surrounding environment and causing a fire.

[0026] One or more technical solutions provided by the utility model have at least the following technical effects or advantages:

[0027] 1. The utility model adopts a gas collecting hood and connects it to the oil pool in a fixed manner. After the connection is completed, the gas collecting hood fits the pool surface of the oil pool, and the movable door is closed, so that the oil smoke is always located inside the gas collecting hood, thereby avoiding the oil smoke generated during the quenching process from drifting and causing the working surface and the interior of the workshop to be filled with oil and gas, thereby reducing environmental pollution;

[0028] 2. The utility model designs the inner wall of the gas collecting hood main body to be closer to the center of the oil pool than the inner wall of the oil pool, thereby ensuring that the condensed oil can fall into the oil pool and will not drip into the external environment to cause pollution, and also realizes the recovery of quenching oil;

[0029] 3. When the movable door of the air collecting hood adopted by the utility model is closed, a certain gap is retained as an observation port, which is convenient for the operator to observe the operation of the equipment. At the same time, the gap also serves as an air supply port for the air collecting hood. The smaller the gap, the faster the wind speed and the greater the suction force, thereby improving the air collection effect of the oil fume in the device to prevent the quenching oil fume and the heat of the high-temperature workpiece from overflowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of the present utility model, and do not constitute a limitation on the embodiments of the present utility model;

[0031] Figure 1 It is a structural schematic diagram of the oil fume collecting hood of the quenching oil pool in the utility model;

[0032] Figure 2 It is a structural schematic diagram of a quenching oil pool fume collecting hood including a placing table and an air supply device in the utility model;

[0033] Among them, 1-air collecting hood main body, 2-movable door, 201-door panel, 202-guide rail, 3-smoke exhaust port, 4-oil pool, 5-gap, 6-placing table, 7-air supply device, 8-inspection door, 9-inspection passage, 10-air regulating valve, 11-push-pull rod. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those within the scope of this description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0036] Embodiment 1

[0037] Please refer to Figure 1, an efficient and automated quenching oil pool fume collecting hood device provided by an embodiment of the utility model comprises a hood main body 1, a movable door 2 and a smoke outlet 3, the hood main body 1 is fixedly connected as a whole by a profile column or a square tube or a combination of the two, the fixed connection method can be welding or bolt connection, the material of the hood main body 1 can be nickel-chromium-iron alloy and stainless steel, the material of the profile column or the square tube can be aluminum alloy or carbon steel, the bottom edge of the hood main body 1 is fixedly connected to the pool edge of the oil pool 4, the fixed connection can be welding or bolt connection, the smoke outlet 3 is fixedly connected to the hood main body 1 and after the connection, a through channel is formed between the smoke outlet 3 and the hood main body 1, through which the quenching oil fume is discharged and collected or connected to other related devices for exhaust post-treatment, and the hood main body 1 after the fixed connection is completed fits with the pool edge of the oil pool 4, ensuring that the other parts of the hood as a whole except the movable door 2 and the smoke outlet 3 are sealed structures to prevent oil fume from overflowing. After the connection is completed, a notch 5 is provided on one side of the gas collecting hood main body, and a movable door 2 fixedly connected to the gas collecting hood main body 1 is provided at the notch 5. The fixed connection can be welded or bolted. The movable door 2 includes a guide rail 202 and a door panel 201. The door panel 201 can slide in the vertical direction along the guide rail 202. At the same time, the opening size of the notch 5 can be controlled by the vertical sliding of the door panel 201. When the operator quenches the workpiece, the workpiece is sent into the oil pool through the notch, and there is a certain gap between the movable door 2 and the edge of the oil pool 4 after the movable door 2 moves downward. The operator passes through the notch 202 to move the movable door 2 downward. The gap is used to observe the internal working condition of the air collecting hood, the movable door 2 adopts a square tube or angle iron welded frame and the outer surface of the movable door is covered with galvanized sheet, the square tube can be a plain carbon steel square tube and a low alloy steel square tube, while ensuring the stability of the movable door structure, it has certain fireproof performance, the distance from the inner wall of the air collecting hood main body 1 to the center of the oil pool 4 is smaller than the distance from the inner wall of the oil pool 4 to the center of the oil pool 4, by designing the inner wall of the air collecting hood main body to be closer to the center of the oil pool than the inner wall of the oil pool, it is ensured that the condensed oil can fall into the oil pool, and will not drip into the external environment to cause pollution.When quenching, the operator puts the high-temperature workpiece into the quenching oil pool. The way of putting it in can be by manually holding a clamp or using a clamp in the oil pool. The generated oil smoke rises and is discharged through the exhaust port. When quenching, the door panel 201 moves downward to fit the edge of the oil pool 4 to prevent the oil smoke from drifting into the environment. The exhaust port 3 can be equipped with an exhaust fan to increase the flow rate of the quenching oil smoke. The exhaust port 3 is provided with an air regulating valve 10. The air regulating valve can be a butterfly valve or a ball valve. The exhaust flow rate can be adjusted by adjusting the air valve. The adjustment method can be manual on-site adjustment or remote adjustment. Control and adjustment, the remote control and adjustment method uses existing technology. During the quenching process, the relevant operators can open the door panel 201 to observe the internal working conditions. The movement of the movable door 2 and the clamping of the workpiece can be completed by automatic control. For example, the movable door 2 is given an operation signal by the clamping device in the oil pool 4. When the worker puts the workpiece into the device and starts it, the device starts and gives a closing signal to the movable door to close the movable door. The clamping device can be a hot forging manipulator clamp or a six-degree-of-freedom manipulator arm. The clamping of the workpiece can also be done manually by using pliers to clamp and send the workpiece into the oil pool. Among them, the automatic control used in the utility model is all existing prior art, and the programs or codes for controlling the automatic operation of the equipment are all existing programs or codes. The methods corresponding to these codes are also methods in the prior art. The utility model is a utility model that utilizes these existing automatic control technologies and codes or programs and applies them to the quenching oil fume collection hood.

[0038] The air collecting hood also includes a push-pull rod 11, which is fixedly connected to the door panel 201. The fixed connection can be a threaded connection or a welding connection. The power source of the push-pull rod 11 can still be pneumatic or electric. The push-pull rod 11 can move vertically up and down along the guide rail 202 and drive the door panel 201 to move vertically up and down. By using the push-pull rod 11 to operate the movable door 2, time and manpower can be saved. At the same time, using an electric or pneumatic method to open and close the door panel 201 can make the movement of the door panel more stable and reliable.

[0039] The air collecting hood also includes an inspection passage 9 and an inspection door 8. The inspection passage 9 is located at the top of the air collecting hood main body. The inspection passage 9 is located on the side of the movable door 3 close to the oil pool 4. The inspection passage 9 is fixedly connected to the air collecting hood main body 1. The fixed connection can be welded or bolted, and a stiffener is provided at the connection. The stiffener can be a stiffening column or a stiffening plate. The material of the stiffener can be reinforced concrete or cast iron. An inclined ladder is fixedly connected at both ends of the inspection passage 9. The inclined ladder is used for maintenance personnel to go up to the inspection passage. The material of the inclined ladder can be stainless steel or aluminum alloy. By adding an inspection passage, it is convenient for maintenance personnel to inspect the movable door 3 at any time. Maintenance, the inspection door 8 is arranged on the side of the air collecting hood main body 1, and the inspection door 8 adopts a square tube or angle iron welded frame and the outer surface is covered with galvanized plate. While ensuring the structural stability of the inspection door 8, the weight of the inspection door 8 is reduced and the inspection door has certain fire resistance. The inspection door 8 is detachably connected to the air collecting hood main body 1 and the inspection door is embedded in the air collecting hood main body after connection. The detachable connection can be a clamp connection or a flange connection. The square tube can be a plain carbon steel square tube and a low alloy steel square tube. By embedding the inspection door 8 in the air collecting hood frame, the overall air leakage rate of the air collecting hood is reduced, and oil droplets in the hood are prevented from penetrating to the outside of the oil pool 4.

[0040] Embodiment 2

[0041] Please refer to Figure 2The utility model provides a high-efficiency automatic quenching oil pool fume collecting hood device based on the first embodiment, which also includes a placement table 6 and an air supply device 7. The placement table 6 is fixedly connected to the outer wall of the oil pool 4, and the fixed connection method can be welding or bolt connection. The placement table 6 can be a cubic table or a conveyor chain. The placement table 6 is used to place the workpiece to be quenched, and its material can be cast iron or carbon steel. Preferably, when the placement table 6 is a conveyor chain, the high-temperature workpiece after heating can be transported to the movable door of the air collecting hood by the conveyor chain, which is efficient and convenient and does not require manual operation. The air supply device 7 can bring the quenching oil fume emitted by the workpiece into the exhaust port 3 in the air collecting hood to ensure that the oil fume on the workpiece will not float in the external environment. Among them, the air supply device 7 can be an exhaust fan, a hair dryer or a centrifugal induced draft fan. When the air supply device 7 is an exhaust fan, it is arranged on the side of the placement table 6 close to the oil pool 4. When the air supply device 7 is a hair dryer, it is arranged on the side of the placement table 6 away from the oil pool 4. When the air supply device 7 is a centrifugal induced draft fan, the air supply device 7 is connected to the smoke exhaust port through a pipeline. The material of the pipeline can be 304 stainless steel or carbon steel. After quenching, the workpiece can be taken out by a clamping machine equipment, or it can be taken out manually by pliers. A conveying chain can also be set at the bottom of the oil pool 4 to bring the workpiece out through the conveying chain. The conveying chain at the bottom of the oil pool 4 is inclined to ensure that the workpiece can be conveyed above the oil surface. At the same time, when the workpiece is placed in the oil pool, the position of the workpiece in the oil pool is located on the conveying chain at the bottom of the oil pool 4. The conveying chain located at the bottom of the oil pool 4 can also be connected to the conveying chain of the placement table 6 as a whole, and the workpiece completes the process of entering and exiting the oil pool through the conveying chain.

[0042] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A highly efficient and automated quenching oil pool fume collecting hood device, characterized in that: include: A gas hood main body (1), a movable door (2) and a smoke exhaust port (3); the bottom edge of the gas hood main body (1) is fixedly connected to the pool edge of an oil pool (4); after the fixed connection, the bottom edge of the gas hood main body (1) and the pool edge of the oil pool (4) fit together; the smoke exhaust port (3) is fixedly connected to the gas hood main body (1); after the connection, a through passage is formed between the smoke exhaust port (3) and the gas hood main body (1); the gas hood main body (1) is fixedly connected to the movable door (2); the movable door (2) comprises a guide rail (202) and a door panel (201) that slides along the guide rail.

2. The high-efficiency automatic quenching oil pool fume collecting hood device according to claim 1 is characterized in that: The gas collecting hood main body (1) is provided with a notch (5), and the movable door (2) controls the opening size of the notch (5) by sliding along a guide rail.

3. The high-efficiency automatic quenching oil pool fume collecting hood device according to claim 2 is characterized in that: The gas collecting hood device also includes a placement table (6) for placing quenching workpieces and an air supply device (7), wherein the placement table (6) is fixedly connected to the outer wall of the oil pool (4), and the air supply device is used to bring the oil smoke generated by the workpieces on the placement table (6) into the interior of the gas collecting hood main body (1).

4. The high-efficiency automatic quenching oil pool fume collecting hood device according to claim 1 is characterized in that: The gas collecting hood device further comprises an inspection door (8), wherein the inspection door (8) is detachably connected to the gas collecting hood main body (1), and after the connection, the inspection door (8) is embedded in the gas collecting hood main body (1).

5. The high-efficiency automatic quenching oil pool fume collecting hood device according to claim 1 is characterized in that: The distance from the inner wall of the gas collecting hood main body (1) to the center of the oil pool (4) is smaller than the distance from the inner wall of the oil pool (4) to the center of the oil pool (4).

6. The high-efficiency automatic quenching oil pool fume collecting hood device according to claim 1 is characterized in that: The gas collecting hood device further comprises an inspection channel (9), wherein the inspection channel (9) is fixedly connected to the gas collecting hood main body (1) and a stiffening member is provided at the fixed connection, and the inspection channel is arranged on a side of the movable door (2) close to the oil pool (4).

7. The high-efficiency automatic quenching oil pool fume collecting hood device according to claim 1 is characterized in that: The smoke exhaust port (3) is provided with an air regulating valve (10) for adjusting the smoke exhaust flow rate.

8. The high-efficiency automatic quenching oil pool fume collecting hood device according to claim 1 is characterized in that: The movable door further comprises a push-pull rod (11), wherein the push-pull rod (11) is fixedly connected to the door panel (201) and performs a push-pull action along the guide rail (202).

9. The high-efficiency automatic quenching oil pool fume collecting hood device according to claim 1 is characterized in that: The overall frame structure of the gas collecting hood main body (1) adopts profile columns and / or square tubes.

10. The high-efficiency automatic quenching oil pool fume collecting hood device according to claim 1, characterized in that: The movable door (2) adopts a square tube or angle iron welded frame and the outer surface of the movable door (2) is covered with a galvanized sheet.

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