Device and method for collecting oil liquid during disassembly of conduit joint

Abstract

The invention discloses a guide pipe connector dismounting oil collecting device and method, and the device comprises an oil collecting bottle which is internally provided with a semi-open space and a semi-sealed space, the semi-sealed space is connected with an oil suction hose, and the oil suction hose communicates with the semi-sealed space; the oil suction unit is used for extracting air in the semi-sealed space, so that negative pressure can be formed in the semi-sealed space; the connecting unit comprises two connecting assemblies, each connecting assembly comprises a bandage and a rope, the bandage is used for being connected with the guide pipe, one end of the rope is connected with the bandage, the other end of the rope is connected with the oil collecting bottle, and the connecting point of the rope and the oil collecting bottle is located within the opening range of the oil collecting bottle. By adopting a connection mode of the binding band and the rope, the device can be suitable for oil collection during disassembly of conduits at different angles, the problems of oil leakage, flowing, splashing and the like during disassembly of the conduits can be well solved, and the device is easy and convenient to install and disassemble, low in cost and wide in application range.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of disassembling a conduit, and particularly relates to a conduit joint disassembling oil collecting device and a collecting method. BACKGROUND

[0002] The oil conduit is a conduit with oil or other liquid in the conduit, and the conduit mainly plays a role of transferring the oil or other liquid. In a system pipeline, a plurality of conduits are connected in series to form a pipeline system, so that the oil in the pipeline system can flow in the pipeline and play its role. However, when replacing a conduit in the pipeline system, the oil in the conduit needs to be discharged first. When disassembling the conduit on an airplane, the dead oil (i.e. the oil that cannot be discharged from the conduit) in the conduit will flow out when the conduit joint nut is loosened. The oil will flow or drip onto the conduit surface, the cable surface, the product surface, the airplane structure surface, the worker disassembling the conduit and the surrounding area of the working area, which can easily cause corrosion to the conduit, the cable, the product and the airplane structure surface and harm to the human body, and can also generate oil hazardous waste, pollute the environment and cause other problems.

[0003] For ordinary conduit disassembly occasions without protection requirements, the oil can be discharged or simply collected, and as long as the dead oil or other liquid in the conduit is discharged, the next step can be performed. However, in the field of aviation, aerospace equipment and other fields with high standards and high requirements, the oil in the conduit cannot be discharged at will. When disassembling the conduit, a plurality of workers need to use an oil basin to collect the oil. If the oil splashes on the conduit surface, the cable surface, the product surface and the airplane structure surface, the workers need to quickly wipe the oil splashed on the conduit, the cable, the product and the airplane structure surface, which is a large workload and low in efficiency. Moreover, the oil has a corrosive effect. If the oil splashed on the conduit, the cable, the product and the airplane structure surface is not wiped clean, the conduit, the cable, the product and the airplane structure surface on the airplane can be corroded, which will cause immeasurable loss. Therefore, the traditional oil collecting method cannot meet the requirements of conduit disassembly.

[0004] Patent document CN207212494U discloses a snow blower aircraft engine oil leakage collecting system, which is a method of discharging and collecting the leaked oil at each sealing position and the unused fuel in the fuel pipe after the engine is turned off. The oil in the conduit can be collected, but the problem of collecting the dead oil that cannot be discharged from the oil conduit cannot be solved.

[0005] A universal telescopic aircraft oil collecting vehicle is disclosed in patent document CN211033069U, which can flexibly adjust the overall height of the device, and the waste oil collecting disc can rotate by 360 degrees to collect oil, but for the case where the complex pipeline system and the aircraft structure, cables, finished products, etc. are intertwined with each other, the telescopic rod of the universal telescopic aircraft oil collecting vehicle cannot reach the required position, and the universal telescopic aircraft oil collecting vehicle can only solve the oil dripping down from the pipe joint, and cannot solve the oil flowing down along the pipe wall. SUMMARY

[0006] The purpose of the present application is to provide a pipe joint disassembly oil collecting device and a collecting method to solve the problems of oil leakage, flow, and splashing during the disassembly of the pipe joint nut.

[0007] The present application is implemented by the following technical solutions: The pipe joint disassembly oil collecting device is used for collecting oil flowing out of the pipe when disassembling the joint nut connecting two pipes, comprising: The oil collecting bottle is internally provided with a semi-open space and a semi-sealed space, and an oil suction hose is connected to the semi-sealed space; The oil suction unit draws air in the semi-sealed space, so that a negative pressure can be formed in the semi-sealed space; The connecting unit includes two groups of connecting components, the connecting components include a bandage and a rope, the bandage is used for connecting with the pipe, one end of the rope is connected with the bandage, the other end is connected with the oil collecting bottle, and the connection point of the rope and the oil collecting bottle is located within the opening range of the oil collecting bottle.

[0008] In some embodiments of the present application, the bandage is wrapped around the pipe, and the two connecting ends of the bandage are oppositely arranged and fixedly connected by a clip, one end of the rope is arranged between the two connecting ends of the bandage, so that the rope can be connected with the bandage when the two connecting ends are fixedly connected by the clip, and the connection length of the rope can be adjusted.

[0009] In some embodiments of the present application, the side edge of the bandage towards the joint nut is provided with an inward chamfer, the chamfers of the two connecting ends of the bandage form a guide groove, and the rope passes through the guide groove, so that the oil flowing into the guide groove can flow into the oil collecting bottle through the rope.

[0010] In some embodiments of the present application, the oil suction unit includes an oil pump and an air suction pipe, the oil pump is arranged on the oil collecting bottle, one end of the air suction pipe is connected with the oil pump, and the other end is in communication with the semi-sealed space, and air is drawn in the semi-sealed space by the oil pump.

[0011] In some embodiments of the present application, the opening of the oil collecting bottle is funnel-shaped, and the connection position of the bandage on the conduit is located within the coverage of the lower opening of the oil collecting bottle, so that the oil dripping from the bandage position can fall into the opening of the oil collecting bottle.

[0012] In some embodiments of the present application, a switch valve is arranged between the semi-sealed space and the semi-open space, and an oil discharge pipe connected with the semi-open space is arranged on the oil collecting bottle.

[0013] In some embodiments of the present application, a liquid level sensor for detecting the liquid level in the semi-sealed space is arranged on the oil collecting bottle.

[0014] In some embodiments of the present application, a wire is connected to the oil absorbing hose in the axial direction.

[0015] In another aspect, the present application also provides a conduit joint disassembly oil collecting method, which uses the conduit joint disassembly oil collecting device to collect the oil flowing from the conduit during disassembly of the conduit, and comprises the following steps: The two bandages are respectively fixedly connected with the conduits on both sides of the joint; The connection length of the two ropes is adjusted, the opening of the oil collecting bottle is adjusted to be horizontal, and the oil absorbing end of the oil absorbing hose is located below the joint nut; The oil absorbing unit is started to form negative pressure in the semi-sealed space; The joint nut is disassembled.

[0016] In some embodiments of the present application, the oil absorbing end of the oil absorbing hose is adjusted to be located at a position 2-3 mm below the joint nut.

[0017] Compared with the prior art, the present application has the following advantages and beneficial effects: The connection mode of the bandage and the rope can be applied to the oil collecting during disassembly of the conduit at different angles (horizontal direction-75°-75° and 105°-255°), and can be conveniently installed in different spaces, which is convenient to install and can well solve the problems of oil leakage, flow, and splashing during disassembly of the conduit, and the device installation and disassembly process is simple, the cost is low, and the application range is wide.

[0018] The present application utilizes the connection and cooperation between the bandage and the rope, utilizes the bandage to prevent the flow of oil along the conduit, and through the cooperation between the formed guide groove and the rope, guides the oil flowing on the pipe wall into the oil collecting bottle, which well solves the problems of oil flow and splashing.

[0019] According to the loosening degree of the joint nut during the dismounting process, different motor gears are selected, so that the best oil collecting effect can be achieved; the high-efficiency collection of the dead oil in the pipeline system during the dismounting of the pipeline system can be realized, the oil liquid can be prevented from splashing on the surface of the duct, the surface of the cable, the surface of the product, the surface of the aircraft structure, the body of the worker dismounting the duct and the surrounding of the working area, the corrosion to the duct, the cable, the product and the surface of the aircraft structure is avoided, the harm to the human body is avoided, and the problems of a large amount of oil liquid hazardous waste and environmental pollution are avoided.

[0020] The present application does not need an external hydraulic source, but only needs to provide suction through the oil pump motor drive to realize the stable collection of the oil liquid, keep the cleaning and sanitation of the oil pipe dismounting working area; the dead oil collection in the whole operation cycle of the pipe joint dismounting can be realized by adapting to the instantaneous large-flow discharge of the dead oil in the pipe and the oil liquid flowing along the outer wall of the duct. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and other related drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings.

[0022] Figure 1 It is a use state structure schematic view of the collecting device of the embodiment of the present application.

[0023] Figure 2 It is a main view of the structure of the collecting device of the embodiment of the present application.

[0024] Figure 3 It is a structure schematic view of the collecting device of the embodiment of the present application in the exploded state.

[0025] Figure 4 It is a connection structure schematic view of the collecting device of the embodiment of the present application.

[0026] Figure 5 It is a schematic view of the installation state of the collecting device of the embodiment of the present application on the inclined duct.

[0027] Figure 6 It is a structure schematic view of the oil suction unit of the collecting device of the embodiment of the present application.

[0028] Figure 7 It is a connection structure schematic view between the semi-sealed space and the semi-open space in the collecting device of the embodiment of the present application.

[0029] Among them: 11, duct joint, 12, joint nut; 21. Oil collection bottle; 211. Semi-sealed space; 212. Semi-open space; 22. Oil suction hose; 23. Oil pump; 24. Air extraction pipe; 25. Oil discharge pipe; 26. Switch valve. 31. Strap; 311. Connecting end; 312. Guide groove; 32. Rope; 33. Clip. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0031] Reference Figure 1 Figure 2 and Figure 3 In some embodiments of the present invention, the conduit connector 11 is disassembled with an oil collection device for collecting oil flowing out of the conduits when the connector nut 12 connecting the two conduits is disassembled, including: The oil collection bottle 21 has a semi-open space 212 and a semi-sealed space 211 inside. An oil suction hose 22 is connected to the semi-sealed space and the oil suction hose 22 is connected to the semi-sealed space 211. The oil suction unit extracts air from the semi-sealed space, creating a negative pressure within it. The connecting unit includes two sets of connecting components, each including a strap 31 and a rope 32. The strap 31 is used to connect to the conduit, and one end of the rope 32 is connected to the strap, while the other end is connected to the oil collecting bottle 21. The connection point between the rope and the oil collecting bottle is located within the opening of the oil collecting bottle.

[0032] In some embodiments, the strap 31 is wrapped around the conduit, and the two connecting ends of the strap 31 are arranged opposite to each other and fixedly connected by the clip 33. One end of the rope 32 is disposed between the two connecting ends 311 of the strap, so that the rope can be connected to the strap when the two connecting ends are fixedly connected by the clip, and the connection length of the rope can be adjusted.

[0033] In some embodiments, the strap 31 has an inward chamfer on the side facing the connector nut, and the chamfers at the two connecting ends of the strap form a guide groove 312. The rope 32 passes through the guide groove so that the oil flowing into the guide groove can flow into the oil collection bottle through the rope.

[0034] like Figure 1 and 2 The device consists of a strap 31, an adjustable rope 32, an oil suction hose 22, an oil collection bottle 21, and an oil pump 23. Figure 2 , Figure 3 As shown.

[0035] The strap 31 has a chamfer on the inner side of one side, so that an annular liquid collection groove is formed between the strap and the conduit wall. The oil in the liquid collection groove flows into the oil collection bottle through the guide groove and rope, preventing the oil from flowing, dripping and splashing.

[0036] The oil collection bottle 21 includes a semi-closed space and a semi-open space.

[0037] The oil suction hose 22 generates suction through the oil pump and transmits it to the semi-enclosed space of the oil collection bottle, creating a negative pressure in the semi-enclosed space, which enables the oil suction hose to generate suction for the oil.

[0038] A liquid level sensor, buzzer, alarm light, and switch valve are installed on the oil collection bottle 21 in a semi-enclosed space.

[0039] An oil drain pipe 25 is installed on the oil collection bottle 21 in a semi-open space, and a valve is installed on the oil drain pipe 25.

[0040] The oil pump 23 includes a motor, a motor speed switch, and a power supply.

[0041] like Figure 4 and Figure 5 As shown, the strap 31 is fixed on the conduit on both sides of the connector nut 12, with the chamfered side of the strap facing the connector nut. The connecting end of the strap is placed below the conduit, and the connecting end is clamped with a clip to fix the strap to the conduit.

[0042] One end of the rope 32 is fixed to the oil collection bottle 21, and the other end is connected to the strap 31.

[0043] Adjust the connection length of the two ropes so that the oil collection bottle is always perpendicular to the horizontal plane and the opening of the oil collection bottle is in an upward horizontal position. After adjusting the length of the rope, fix the clips on the strap to secure the rope and connect the rope to the strap.

[0044] Insert the lower end of the oil suction hose into the semi-enclosed space of the oil collection bottle, and position the oil suction end of the hose 2-3mm below the connector nut of the conduit to be disassembled.

[0045] like Figure 6 The oil pump 23 is fixed to the bottom of the oil collection bottle. One end of the suction pipe 24 is connected to the suction port of the oil pump, and the other end is connected to the insertion hole on the side of the semi-enclosed space of the oil collection bottle.

[0046] like Figure 7 A switch valve 26 is provided below the intermediate isolation zone between the semi-enclosed space and the semi-open space, and an oil drain pipe 25 is provided below the side of the semi-open space.

[0047] The working principle and data collection method of the device specifically include the following steps: (1) Secure the straps to both sides of the conduit nut joint. The straps are made of elastic rubber pads and can be quickly installed on conduits with a diameter of no more than 150mm. After installation, they are secured with clips.

[0048] The inner edge of the strap is designed with a chamfered structure at an angle of 30°, and a guide groove is formed on the inner side of the strap connection end. When the oil flows along the outer wall of the conduit, it can effectively prevent the oil from continuing to flow along the outer wall of the conduit, and at the same time guide the oil into the guide groove below the inner edge structure of the strap, thus playing the role of stopping and guiding the oil.

[0049] (2) Adjust the length of the rope The rope is used to connect the strap and the oil collection bottle, and serves to guide the oil in the strap guide groove into the oil collection bottle.

[0050] When installing the collection device, adjust the rope length according to the current inclination angle of the conduit. By adjusting the rope, adjust the oil collection bottle to always be perpendicular to the horizontal plane and the bottle mouth to be horizontal and upward, so as to ensure the oil collection effect of the oil collection bottle and prevent the oil from flowing outside the oil collection bottle. After adjusting the angle of the oil collection bottle to the correct position, fix the rope with the clamp and fix the rope to the strap.

[0051] (3) Adjust the direction and position of the oil suction hose Adjust the direction and position of the oil suction hose. Position the suction end of the oil suction hose 2-3mm below the connector nut of the conduit to be disassembled, and suck up the leaking oil into the semi-enclosed space of the oil collection bottle to prevent oil from dripping and splashing onto the conduit, cable, finished product, and aircraft structural surface.

[0052] To address the issue of springback after bending the suction hose, a 1mm wire is fixed to the inner or outer wall of the suction hose. This allows the suction hose to be easily adjusted to the desired shape and prevents springback, ensuring that the suction hose is always aligned with the oil leakage point of the nut.

[0053] (4) Start the oil pump to draw oil. Turn on the oil pump motor switch to draw the oil flowing from the conduit connector into the semi-enclosed space of the oil collection bottle. The pump motor's suction end is connected to the suction hose above the semi-enclosed space of the oil collection bottle. After the pump motor starts running, the upper end of the suction hose above the semi-enclosed space will generate suction on the oil at the conduit connector, drawing the oil into the semi-enclosed space of the oil collection bottle. The oil drawn into the semi-enclosed space eventually falls to the bottom of the oil collection bottle due to gravity.

[0054] Oil pump motor power: Based on actual on-site operations, the flow rate of leaking oil at the joint is 0-50 L / h, and the oil density ρ on the machine is 0.9 g / cm³. 3 The power P of the oil pump motor can be obtained from the following formula: ; In the formula, Q is the flow rate of the oil pump motor, η is the efficiency of the pump, H is the head, and g is the acceleration due to gravity.

[0055] A typical miniature oil pump has a flow rate Q of approximately 60-120 L / h, an efficiency η of approximately 0.7-0.8, and a head H of 20-40 cm. In this configuration, the pump power P is approximately 5-10 W, which is sufficient for on-site operation requirements.

[0056] (5) Select the appropriate oil collection mode according to the degree of looseness of the nut. The specific operation is as follows: a) Loosen the tubing connector by 3-5 turns of thread. When the nut of the conduit connector is unscrewed 3-5 turns, the oil inside the conduit begins to drip outward.

[0057] b) Turn on the oil pump motor and set it to the first gear. At this point, turn the oil pump motor of the oil collection device to the first position, and the dripping oil will be sucked into the semi-closed oil collection bottle by the oil suction hose above the semi-closed oil collection bottle.

[0058] c) Loosen the catheter connector until only the last 1-2 threads remain. With the oil pump motor running continuously, slowly loosen the conduit connector nut until only the last 1-2 threads remain, then stop loosening the conduit connector nut.

[0059] d) Adjust the oil pump motor to second gear. When the nut of the conduit connector is loosened to the last 1-2 threads, the oil pump motor of the oil collection device is adjusted to the second gear. At this time, the oil leaking at the conduit connector changes from dripping to a thin stream, and the oil is sucked into the semi-enclosed space of the oil collection bottle by the oil suction hose.

[0060] e) Collect oil through the funnel-shaped opening of the oil collecting bottle. When some conduits are at an angle to the horizontal plane, although most of the oil is drawn into the semi-enclosed space of the oil collecting bottle, some oil will flow obliquely downwards along the outer wall of the conduit. At this time, when the oil flows to the strap, the chamfered structure on the inner edge of the strap comes into play. The strap prevents the oil from continuing to flow along the outer wall of the conduit, and at the same time guides the oil into the guide groove below the inner edge structure of the strap, and flows along the telescopic rope to the conical funnel structure above the oil collecting bottle, and finally enters the semi-open space of the oil collecting bottle.

[0061] f) Completely loosen the catheter connector When the oil at the conduit joint forms drops again, unscrew the joint nut to completely separate the two conduit joints. At this point, all the remaining oil in the conduit will flow out. Under the combined action of the bandage drainage and the oil suction hose, all the oil in the conduit will be collected into the oil collection bottle.

[0062] It should be noted that when the oil changes from a thin stream to a dripping state again, the oil pump motor needs to be adjusted to the lowest setting again until the oil in the guide tube stops dripping. Then, turn off the oil pump motor to complete the oil collection process.

[0063] g) Oil removal When there is a lot of oil in the disassembled conduit and the oil level in the semi-open space of the oil collecting bottle is high, the valve at the bottom of the semi-open space of the oil collecting bottle can be opened to drain all the oil in the semi-open space of the oil collecting bottle through the drain pipe. Then the valve can be closed to drain the oil from the semi-open space of the oil collecting bottle. Two level sensors are installed in the semi-enclosed space of the oil collecting bottle. When the oil level in the semi-enclosed space reaches the height of level sensor a, a buzzer sounds an alarm signal and an alarm light flashes green, prompting the operator to prepare for oil drainage. When the oil level in the semi-enclosed space reaches the height of level sensor b, a buzzer sounds an alarm signal and an alarm light flashes red, prompting the operator to open the valve at the bottom of the semi-enclosed space of the oil collecting bottle, allowing the oil in the semi-enclosed space to flow into the semi-open space, thus draining the oil from the semi-enclosed space. Then, the valve at the bottom of the semi-enclosed space is closed to isolate the semi-sealed space from the semi-open space.

[0064] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this invention is usually placed in during use. They are only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0065] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this invention does not imply that the components are required to be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0066] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A pipe fitting disassembly oil collection device, used to collect oil flowing out of the pipes when disassembling the fitting nut connecting two pipes, characterized in that, include: The oil collection bottle has a semi-open space and a semi-sealed space inside. An oil suction hose is connected to the semi-sealed space, and the oil suction hose is in communication with the semi-sealed space. The oil suction unit evacuates air from the semi-sealed space, creating a negative pressure within the semi-sealed space. The connecting unit includes two sets of connecting components, each including a strap and a rope. The strap is used to connect to the conduit, one end of the rope is connected to the strap, and the other end is connected to the oil collecting bottle. The connection point between the rope and the oil collecting bottle is located within the opening of the oil collecting bottle.

2. The oil collection device for disassembling conduit fittings according to claim 1, characterized in that, The strap is wrapped around the guide tube, and the two connecting ends of the strap are arranged opposite each other and fixedly connected by a clip. One end of the rope is placed between the two connecting ends of the strap, so that the rope can be connected to the strap when the two connecting ends are fixedly connected by the clip, and the connection length of the rope can be adjusted.

3. The oil collection device for disassembling conduit fittings according to claim 2, characterized in that, The strap has an inward chamfer on the side facing the connector nut. The chamfers at the two connecting ends of the strap form guide grooves. The rope passes through the guide grooves so that the oil flowing into the guide grooves can flow into the oil collection bottle via the rope.

4. The oil collection device for disassembling conduit fittings according to claim 1, characterized in that, The oil suction unit includes an oil pump and an air extraction pipe. The oil pump is installed on the oil collection bottle. One end of the air extraction pipe is connected to the oil pump, and the other end is connected to the semi-sealed space. The oil pump is used to extract air from the interior of the semi-sealed space.

5. The oil collection device for disassembling conduit fittings according to claim 1, characterized in that, The opening of the oil collecting bottle is funnel-shaped, and the connection point of the strap on the conduit is located within the coverage area of ​​the opening of the lower oil collecting bottle, so that the oil dripping from the strap position can fall into the opening of the oil collecting bottle.

6. The oil collection device for disassembling conduit fittings according to claim 1, characterized in that, A switch valve is provided between the semi-sealed space and the semi-open space, and an oil drain pipe connected to the oil collection bottle and communicating with the semi-open space is connected to the oil collection bottle.

7. The oil collection device for disassembling conduit fittings according to claim 1, characterized in that, The oil collecting bottle is equipped with a liquid level sensor for detecting the liquid level in the semi-sealed space.

8. The oil collection device for disassembling conduit fittings according to claim 1, characterized in that, An iron wire is connected axially to the oil suction hose.

9. A method for collecting oil after disassembling a conduit connector, characterized in that, The oil collection device for collecting oil flowing out of the conduit during conduit disassembly, as described in any one of claims 1-8, comprises the following steps: Secure the two straps to the conduits located on both sides of the connector; Adjust the connection length of the two ropes, adjust the opening of the oil collection bottle to be horizontal, and position the oil suction end of the suction hose below the connector nut; Activating the oil suction unit creates negative pressure within the semi-sealed space; Remove the connector nut.

10. The method for collecting oil during conduit fitting disassembly according to claim 9, characterized in that, Adjust the suction end of the suction hose so that it is located 2-3mm below the connector nut.

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