A matched gas collecting assembly of an atmospheric oil fume pollution negative pressure suction device

Abstract

The utility model discloses a kind of atmospheric oil fume pollutant negative pressure suction device's supporting gas collection components, belong to pollutant processing field.A kind of atmospheric oil fume pollutant negative pressure suction device's supporting gas collection components, including table body, the inner wall of the rear side of table body is clamped with collection bottle, the top of collection bottle is clamped with cover body, the top of cover body is inserted with negative pressure pipe, the top of cover body is inserted with collection pipe;The utility model is extended to the inside of cylindrical cylinder by collection pipe bottom end, and cooperate with the flow guide structure of conical body and slope, the originally vertical downward high-speed impact liquid surface airflow is converted into radial airflow along slope dispersion, and finally guided to the inside wall of collection bottle slowly flows down;To this avoid high-speed airflow directly blows to the accumulated liquid surface of the bottom of collection bottle, to eliminate the liquid wave, bubble and secondary spray due to airflow impact, prevent splashing oil-containing spray from being sucked into negative pressure pipeline, and further protect negative pressure equipment and filter core.

Description

Technical Field

[0001] This utility model relates to the field of pollutant treatment technology, and in particular to a matching gas collection component for a negative pressure suction device for atmospheric oil fume pollutants. Background Technology

[0002] In atmospheric environmental monitoring, negative pressure suction devices are used for sampling and collecting oil fume pollutants. They create a low-pressure environment inside the gas collection component using a negative pressure power source, and use the pressure difference to absorb polluting gases containing oil fumes, water vapor, and particulate matter from the outside. The pollutants are then drawn into the inner cavity of the gas collection component through the air inlet pipe. Inside the gas collection component, liquid oil and solid particles entrained in the gas are deposited at the bottom of the component, thereby achieving gas-liquid separation and pollutant collection.

[0003] However, existing gas collection components have significant technical defects in practical use. Currently, most gas collection components use a vertically downward design for the air inlet pipe, which is directly inserted into the inner cavity, with the pipe opening facing the bottom sediment surface. When the negative pressure device operates under high load or the airflow velocity is high, the high-speed airflow from the air inlet will vertically impact the already collected oily liquid surface at the bottom, generating a strong disturbance effect. This will agitate a large number of liquid waves, bubbles, and tiny droplets, resulting in secondary splashing. Due to the limited internal space of the gas collection component and the fact that the air outlet is usually located at the top of the component, these agitated secondary droplets are easily carried away by the negative pressure airflow above and directly sucked into the air outlet. This not only causes the equipment to misjudge the liquid level as too high and trigger an alarm, resulting in frequent shutdowns, but also, once the oily droplets enter the downstream pipeline, they will quickly clog the precision filter element or contaminate the vacuum pump body, seriously affecting the operational stability and service life of the equipment. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art mentioned above, and to propose a matching gas collection component for a negative pressure suction device for atmospheric oil fume pollutants.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A matching gas collection assembly for a negative pressure suction device for atmospheric oil fume pollutants includes a platform, a collection bottle snapped onto the inner wall of the rear side of the platform, a cover snapped onto the top of the collection bottle, a negative pressure tube inserted into the top of the cover, a collection tube inserted into the top of the cover, a buffer spring fixedly connected to the bottom end of the cover, a transverse plate fixedly connected to the bottom end of the buffer spring, a cylindrical body coaxially fixedly connected to the top end of the transverse plate, an air outlet groove formed on the side wall of the bottom of the cylindrical body, a ramp formed at the top end of the transverse plate, and a cone fixedly connected to the center of the top end of the transverse plate.

[0006] Preferably, a support rod is fixedly connected between the cover and the transverse plate, and the buffer spring is sleeved on the surface of the support rod.

[0007] Preferably, the bottom end of the collecting tube is coaxially arranged with the cylindrical body, and the bottom end of the collecting tube extends into the interior of the cylindrical body.

[0008] Preferably, the ramp is inclined, and the height of the ramp gradually and smoothly decreases as it moves away from the center of the transverse plate.

[0009] Preferably, the bottom end of the horizontal plate is provided with a slot, the bottom end of the horizontal plate is provided with a protective cover, the top end of the protective cover is attached to the bottom end of the horizontal plate, the top end of the protective cover is fixedly connected with a protrusion, the inside of the protrusion is slidably connected with a slider, a pressure spring is fixedly connected between the slider and the inner wall of the protrusion, and the top of the slider is adapted to be engaged in the inside of the slot.

[0010] Preferably, an electric heating strip is fixedly installed at the bottom end of the horizontal plate, and a power supply is fixedly installed on the surface of the protective cover, with the power supply and the electric heating strip being electrically connected.

[0011] Preferably, a drive assembly is fixedly installed at the center of the bottom wall of the protective cover, a connector is provided at the top of the output shaft of the drive assembly, telescopic rods are hinged to both sides of the other end of the connector, an impact block is hinged to the other end of the telescopic rod, a connecting spring is fixedly connected between the impact block and the connector, and impact balls are fixedly installed at equal intervals on the inner circumference of the cone, and the impact block and the impact balls are adapted to contact each other.

[0012] Preferably, a control panel is fixedly connected to the top of the platform, the end of the negative pressure pipe away from the cover is connected to the output end of the negative pressure suction device inside the platform, and the control panel and the negative pressure suction device are electrically connected.

[0013] Compared with the prior art, this utility model provides a matching gas collection component for a negative pressure suction device for atmospheric oil fume pollutants, which has the following beneficial effects: 1. The matching air collection component of this negative pressure suction device for atmospheric oil fume pollutants, by extending the bottom end of the collection pipe into the interior of the cylindrical body, and in conjunction with the flow guiding structure of the cone and the slope, transforms the airflow that originally impacts the liquid surface vertically at high speed into a radial airflow that diverges along the slope, and finally guides it to flow slowly down the inner wall of the collection bottle; this avoids the high-speed airflow blowing directly onto the accumulated liquid surface at the bottom of the collection bottle, thereby eliminating liquid waves, bubbles and secondary droplets generated by the airflow impact, preventing splashed oily droplets from being sucked into the negative pressure pipeline, and thus protecting the negative pressure equipment and filter element.

[0014] 2. The matching gas collection component of this negative pressure suction device for atmospheric oil fume pollutants uses an electric heating strip at the bottom of the horizontal plate to continuously heat the slope and guide surface. This prevents the oil fume from rapidly condensing and adhering to the wall when it comes into contact with low-temperature components. By maintaining the temperature of the contact surface, the viscosity of the oil is reduced, ensuring that even in low-temperature environments or when dealing with oil fumes with high freezing points, the oil can maintain good fluidity and quickly slide down the slope to the bottom of the bottle. This ensures the smooth flow of the gas collection channel and avoids the performance degradation of the device due to oil accumulation.

[0015] 3. The matching gas collection component of this negative pressure suction device for atmospheric oil fume pollutants, through the drive component, in conjunction with the telescopic rod, impact block and impact ball, generates periodic mechanical impact, causing the transverse plate and cone to vibrate. The vibration phenomenon cleans the oil stains attached to their surfaces, preventing pollutants from adhering and remaining on the guide surface. This not only further accelerates the collection speed of oil stains to the bottom, but also realizes the self-cleaning function of key components, reducing the frequency of manual disassembly and cleaning. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the matching gas collection component of the negative pressure suction device for atmospheric oil fume pollutants proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of the gas collection component of the negative pressure suction device for atmospheric oil fume pollutants proposed in this utility model. Figure 3 This is a cross-sectional structural diagram of the cover of the matching gas collection component of the negative pressure suction device for atmospheric oil fume pollutants proposed in this utility model; Figure 4 This is a cross-sectional view of the transverse plate of the matching gas collection component of the negative pressure suction device for atmospheric oil fume pollutants proposed in this utility model. Figure 5 This invention provides a matching gas collection component for a negative pressure suction device for atmospheric oil fume pollutants. Figure 4 Enlarged structural diagram of section A; Figure 6 This invention provides a matching gas collection component for a negative pressure suction device for atmospheric oil fume pollutants. Figure 4 Enlarged structural diagram of part B.

[0017] In the diagram: 1. Platform; 2. Control panel; 3. Collection bottle; 4. Cover; 5. Negative pressure pipe; 6. Collection pipe; 7. Support rod; 8. Buffer spring; 9. Horizontal plate; 10. Cylindrical cylinder; 11. Air outlet; 12. Slope; 13. Cone; 14. Slot; 15. Protective cover; 16. Protrusion; 17. Slider; 18. Pressure spring; 19. Electric heating strip; 20. Drive assembly; 21. Connector; 22. Telescopic rod; 23. Impact block; 24. Connecting spring; 25. Impact ball. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Reference Figures 1-4 A gas collection assembly for a negative pressure suction device for atmospheric oil fume pollutants includes a platform 1. A collection bottle 3 is snapped onto the inner wall of the rear side of the platform 1. The collection bottle 3 is made of high-strength transparent polycarbonate and has capacity graduation lines on its outer wall to allow operators to visually monitor the internal liquid level and oil fume status. A cover 4 is snapped onto the top of the collection bottle 3. A negative pressure tube 5 and a collection tube 6 are inserted into the top of the cover 4. The port of the negative pressure tube 5 inside the cover 4 is higher than the outlet of the collection tube 6, thereby extending the airflow path in space and preventing airflow short-circuiting. A buffer spring 8 is fixedly connected to the bottom of the cover 4, and a horizontal plate 9 is fixedly connected to the bottom of the buffer spring 8. A support rod 7 is fixedly connected between the cover 4 and the transverse plate 9. A buffer spring 8 is sleeved on the surface of the support rod 7. A cylindrical body 10 is coaxially fixedly connected to the top of the transverse plate 9. The bottom end of the collection pipe 6 is coaxially set with the cylindrical body 10. The bottom end of the collection pipe 6 extends into the interior of the cylindrical body 10. An air outlet groove 11 is opened on the side wall at the bottom of the cylindrical body 10. A ramp 12 is opened at the top of the transverse plate 9. The ramp 12 is inclined, and the height of the ramp 12 gradually decreases steadily as it moves away from the center of the transverse plate 9. The surface of the ramp 12 is coated with a Teflon coating to reduce the adhesion of the oil and increase the oil sliding speed. A cone 13 is fixedly connected to the center of the top of the transverse plate 9.

[0021] Reference Figures 3-5 A slot 14 is provided at the bottom end of the horizontal plate 9, and a protective cover 15 is provided at the bottom end of the horizontal plate 9. The top end of the protective cover 15 is attached to the bottom end of the horizontal plate 9. In actual use, an aerogel heat insulation pad can be added between the two contact surfaces to block the downward transfer of heat and ensure that the heat energy is concentrated and conducted upward to the horizontal plate 9. A protrusion 16 is fixedly connected to the top end of the protective cover 15. A slider 17 is slidably connected inside the protrusion 16. A pressure spring 18 is fixedly connected between the slider 17 and the inner wall of the protrusion 16. The top of the slider 17 is fitted and snapped into the inside of the slot 14.

[0022] Reference Figure 4 An electric heating strip 19 is fixedly installed at the bottom of the horizontal plate 9. A power supply is fixedly installed on the surface of the protective cover 15. The power supply and the electric heating strip 19 are electrically connected. The electric heating strip 19 uses a PTC ceramic heating element, which has self-temperature control characteristics and can maintain the working temperature of the horizontal plate 9 between 50℃ and 70℃. It can effectively melt solidified grease and prevent excessive temperature from causing carbonization of oil fumes or damage to the seals.

[0023] Reference Figure 4 and Figure 6 A drive assembly 20 is fixedly installed at the center of the bottom wall of the protective cover 15. The drive assembly 20 is a combination of a motor fixedly installed on the bottom wall of the protective cover 15 and a drive rod installed on the drive end of the motor. A connector 21 is provided at the top of the output shaft of the drive assembly 20. The connector 21 can be detachably installed on the top of the drive rod for easy maintenance. Telescopic rods 22 are hinged to both sides of the other end of the connector 21. The telescopic rods 22 are made of lightweight and high-strength carbon fiber to reduce rotational inertia and thus reduce starting load. An impact block 23 is hinged to the other end of the telescopic rod 22. A connecting spring 24 is fixedly connected between the impact block 23 and the connector 21. Impact balls 25 are fixedly installed at equal intervals on the inner circumference of the cone 13. The impact block 23 and the impact ball 25 are matched and contact each other. The surface of the impact block 23 is covered with an oil-resistant rubber buffer layer to ensure effective impact vibration, reduce mechanical noise and protect the impact ball 25 from hard damage.

[0024] Reference Figure 1 The top of the platform 1 is fixedly connected to the control panel 2. The end of the negative pressure pipe 5 away from the cover 4 is connected to the output end of the negative pressure suction device inside the platform 1. The control panel 2 and the negative pressure suction device are electrically connected.

[0025] In this invention, when using the matching gas collection assembly, the operator activates the negative pressure suction device connected inside the platform 1 via the control panel 2. At this time, the negative pressure suction device creates a continuous negative pressure environment in the internal cavity of the collection bottle 3 through the negative pressure pipe 5. Under the pressure difference between the external atmospheric pressure and the internal negative pressure, the external pollutant gas containing oil fumes, water vapor, and particulate matter is rapidly sucked into the collection pipe 6. Since the bottom end of the collection pipe 6 is coaxially arranged with the cylindrical body 10 and extends into its interior, the high-speed flowing oil fume gas is guided to the central area above the horizontal plate 9. At this time, the sprayed oil fume gas vertically impacts the area located on the horizontal plate 9. The cone 13 at the top center of plate 9 transforms the high-speed airflow that was originally vertically downward into a radial airflow that radiates along the cone surface. At this time, the gas and oil overflow through the gas outlet 11 opened on the bottom side wall of the cylindrical body 10. Then the airflow and oil diffuse in all directions along the slope 12 opened at the top of the transverse plate 9. Due to the inclined design of the slope 12, the oil flows smoothly to the edge of the transverse plate 9. Then the gas and oil impact the inner wall of the collection bottle 3, and then slowly flow down from the inner wall to the bottom to be collected, avoiding the gas directly impacting the liquid surface and agitating a large number of liquid waves, bubbles and tiny droplets.

[0026] During this process, to prevent the oil from rapidly condensing and accumulating when it comes into contact with the cooler horizontal plate 9, the operator can turn on the power through the control panel 2 to start the electric heating strip 19 fixedly installed at the bottom of the horizontal plate 9. The heat generated by the electric heating strip 19 is transferred to the horizontal plate 9 and the ramp 12 through heat conduction, keeping the temperature of the contact surface within a range that allows the oil to maintain good fluidity. This heating process reduces the viscosity of the oil on the surface of the ramp 12, ensuring that even in low-temperature environments or when dealing with high-freezing-point fumes, the separated oil can quickly slide down the ramp 12 to the bottom of the collection bottle 3, avoiding the problem of narrowing of the flow channel or blockage of the air outlet 11 caused by oil clumps, and ensuring the long-term stable operation of the device.

[0027] In addition, the operator can start the drive assembly 20, so that its output shaft drives the connector 21 at the top to rotate. Under the action of centrifugal force, the telescopic rods 22 hinged on both sides of the connector 21 extend outward against the tension of the connecting spring 24, driving the impact block 23 at the end to make a circular motion. During the rotation, the impact block 23 will periodically hit the impact ball 25 fixed on the inner circumference of the cone 13. The impact causes the cone 13 and the transverse plate 9 to vibrate slightly. Since the transverse plate 9 is elastically connected to the buffer spring 8 through the support rod 7 at the bottom of the cover 4, the entire transverse plate 9 assembly will vibrate. At this time, the oil droplets attached to the surface of the transverse plate 9 can be effectively shaken off, further accelerating their fall into the bottom of the collection bottle 3, thereby avoiding the adhesion of oil stains on the surface of the transverse plate 9 and affecting the subsequent oil collection efficiency.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A matching gas collection assembly for a negative pressure suction device for atmospheric oil fume pollutants, comprising a platform (1), a collection bottle (3) snapped onto the inner wall of the rear side of the platform (1), a cover (4) snapped onto the top of the collection bottle (3), a negative pressure tube (5) inserted into the top of the cover (4), and a collection tube (6) inserted into the top of the cover (4), characterized in that, A buffer spring (8) is fixedly connected to the bottom end of the cover (4), a horizontal plate (9) is fixedly connected to the bottom end of the buffer spring (8), a cylindrical body (10) is fixedly connected to the top end of the horizontal plate (9) on the same axis, an air outlet groove (11) is provided on the side wall at the bottom of the cylindrical body (10), a ramp (12) is provided on the top end of the horizontal plate (9), and a cone (13) is fixedly connected to the center of the top end of the horizontal plate (9).

2. The matching gas collection assembly of the negative pressure suction device for atmospheric oil fume pollutants according to claim 1, characterized in that, A support rod (7) is fixedly connected between the cover (4) and the transverse plate (9), and the buffer spring (8) is sleeved on the surface of the support rod (7).

3. The matching gas collection assembly of the negative pressure suction device for atmospheric oil fume pollutants according to claim 1, characterized in that, The bottom end of the collecting tube (6) is coaxially arranged with the cylindrical body (10), and the bottom end of the collecting tube (6) extends into the interior of the cylindrical body (10).

4. The matching gas collection assembly of the negative pressure suction device for atmospheric oil fume pollutants according to claim 1, characterized in that, The ramp (12) is inclined, and the height of the ramp (12) gradually and steadily decreases as it moves away from the center of the transverse plate (9).

5. The matching gas collection assembly of the negative pressure suction device for atmospheric oil fume pollutants according to claim 1, characterized in that, The bottom end of the horizontal plate (9) is provided with a slot (14), and the bottom end of the horizontal plate (9) is provided with a protective cover (15). The top end of the protective cover (15) is attached to the bottom end of the horizontal plate (9). The top end of the protective cover (15) is fixedly connected with a protrusion (16). The inside of the protrusion (16) is slidably connected with a slider (17). A pressure spring (18) is fixedly connected between the inner wall of the slider (17) and the protrusion (16). The top of the slider (17) is adapted to be engaged inside the slot (14).

6. The matching gas collection assembly of the negative pressure suction device for atmospheric oil fume pollutants according to claim 5, characterized in that, An electric heating strip (19) is fixedly installed at the bottom of the horizontal plate (9), and a power supply is fixedly installed on the surface of the protective cover (15). The power supply and the electric heating strip (19) are electrically connected.

7. The matching gas collection assembly of the negative pressure suction device for atmospheric oil fume pollutants according to claim 5, characterized in that, A drive assembly (20) is fixedly installed at the center of the bottom wall of the protective cover (15). A connector (21) is provided at the top of the output shaft of the drive assembly (20). Telescopic rods (22) are hinged to both sides of the other end of the connector (21). An impact block (23) is hinged to the other end of the telescopic rod (22). A connecting spring (24) is fixedly connected between the impact block (23) and the connector (21). Impact balls (25) are fixedly installed at equal intervals on the inner circumference of the cone (13). The impact block (23) and the impact ball (25) are adapted to each other and make contact.

8. The matching gas collection assembly of the negative pressure suction device for atmospheric oil fume pollutants according to claim 1, characterized in that, The top of the platform (1) is fixedly connected to a control panel (2). The end of the negative pressure pipe (5) away from the cover (4) is connected to the output end of the negative pressure suction device inside the platform (1). The control panel (2) and the negative pressure suction device are electrically connected.

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