Oil sampling device

Abstract

The invention relates to the technical field of petrochemical engineering sampling equipment, in particular to an oil sampling device. Comprising an oil tank, a tank top mechanism, an outside-tank ground host and a connecting pipe cable. The tank top mechanism is located above the oil tank, the outside-tank ground host is located on the ground outside the oil tank, and the connecting pipe cable is connected with the tank top mechanism and the outside-tank ground host. The tank top mechanism comprises a mounting frame, a multi-channel pipe row traction wheel, a multi-channel hydraulic rotary joint and an in-tank connecting unit, the multi-channel pipe row traction wheel is arranged on the mounting frame, and the multi-channel hydraulic rotary joint is connected with the multi-channel pipe row traction wheel and located on one side of the multi-channel pipe row traction wheel; the in-tank connecting unit is connected with the multi-channel pipe row traction wheel, and the connecting pipe cable is connected with the multi-channel hydraulic rotary joint, by adopting the mode, the sampling depth and speed can be accurately controlled, the layering or pollution of samples can be prevented, the device is suitable for sampling shallow liquid and deep liquid, and the operation is very convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil and chemical sampling equipment, and particularly relates to an oil sampling device. BACKGROUND

[0002] In the oil and chemical industry, periodic sampling of oil in the oil storage tank is a core link for guaranteeing product quality and safety in production, and manual sampling is the most basic sampling method, which is usually performed by lowering a sampling rope or a sampling bottle from the top opening of the storage tank to a target depth. The traditional manual sampling method relies on the experience of an operator, and the sampling depth and speed are difficult to accurately control, which may easily lead to stratification or pollution of the sample. The method is only suitable for sampling of shallow liquid, and it is difficult to obtain a representative sample of deep liquid in a large storage tank. In addition, manual operation has serious safety hazards in a toxic, harmful, flammable or explosive medium environment.

[0003] In the above existing method, the existing manual sampling method mainly relies on the experience of an operator, and the sampling depth and speed are difficult to accurately control, which may easily lead to stratification or pollution of the sample. The method is only suitable for sampling of shallow liquid, and it is difficult to obtain a representative sample of deep liquid in a large storage tank, and sampling is very inconvenient. SUMMARY

[0004] The present application aims to provide an oil sampling device, which solves the problem that the existing manual sampling method mainly relies on the experience of an operator, and the sampling depth and speed are difficult to accurately control, which may easily lead to stratification or pollution of the sample. The method is only suitable for sampling of shallow liquid, and it is difficult to obtain a representative sample of deep liquid in a large storage tank, and sampling is very inconvenient.

[0005] To achieve the above-mentioned purpose, the present application adopts an oil sampling device, which comprises an oil tank, a tank top mechanism, an out-of-tank ground main machine and a connecting pipe cable. The oil tank, the tank top mechanism, the out-of-tank ground main machine and the connecting pipe cable are connected with each other. The tank top mechanism is located above the oil tank, and the out-of-tank ground main machine is located on the ground outside the oil tank. The connecting pipe cable is connected with the tank top mechanism and the out-of-tank ground main machine.

[0006] The tank top mechanism comprises a mounting frame, a multi-channel pipe row traction wheel, a multi-channel hydraulic rotary joint and an in-tank connecting unit. The multi-channel pipe row traction wheel is arranged on the mounting frame. The multi-channel hydraulic rotary joint is connected with the multi-channel pipe row traction wheel and located on one side of the multi-channel pipe row traction wheel. The in-tank connecting unit is connected with the multi-channel pipe row traction wheel. The connecting pipe cable is connected with the multi-channel hydraulic rotary joint.

[0007] The multi-channel pipe row traction wheel comprises a pneumatic motor, a traction wheel bearing seat and a traction wheel body, the pneumatic motor is fixedly arranged in the mounting frame, the traction wheel body is arranged in the mounting frame, the traction wheel bearing seat is connected with the pneumatic motor and the traction wheel body respectively, the multi-channel hydraulic rotary joint is connected with the traction wheel body and located on the side of the traction wheel body away from the traction wheel bearing seat.

[0008] The tank-in connecting unit comprises a micro gear pump, a shaft coupling, a hydraulic motor and a multi-channel pipe row, the multi-channel pipe row is connected with the multi-channel hydraulic rotary joint, the hydraulic motor is arranged below the multi-channel pipe row, one end of the shaft coupling is connected with the hydraulic motor, and the other end of the shaft coupling is connected with the micro gear pump.

[0009] The tank-out ground main machine comprises a hydraulic station, a pneumatic diaphragm pump, an oil storage tank, a sampling bottle and a main machine rack, the main machine rack is located outside the oil tank, the hydraulic station, the pneumatic diaphragm pump, the oil storage tank and the sampling bottle are fixedly arranged on the main machine rack respectively, the sampling bottle is connected with the oil storage tank, the pneumatic diaphragm pump is connected with the oil storage tank, and the connecting pipe cable is connected with the hydraulic station and the pneumatic diaphragm pump respectively.

[0010] The connecting pipe cable is a multi-core sleeve structure.

[0011] The oil liquid sampling device of the present application, the tank top mechanism is fixed to the top of the oil tank through the flange opening, which is the core execution unit of driving and sampling function, the tank top mechanism is composed of multi-channel pipe row traction wheel, the tank connection unit and multi-channel hydraulic rotary joint; the multi-channel pipe row traction wheel reel and release the multi-channel pipeline into the oil tank, ensure the orderly arrangement in the pipeline retraction process, avoid winding or distortion, the multi-channel hydraulic rotary joint is used to connect the tank connection unit and the connecting cable, the internal configuration of multiple independent sealing channels is used for hydraulic oil and sample liquid transmission respectively, ensure the continuous transmission of medium in the rotation process and no leakage, the ground main machine outside the tank is arranged in the ground area near the oil tank, which is the control and power center of the system, the connecting cable is arranged along the outer wall of the tank body of the oil tank, the connecting cable is used to connect the tank top mechanism and the ground main machine outside the tank, in the above-mentioned mode, the driving, retraction and sampling functions are integrated, the external traction steel wire and pulley block are cancelled, the overall equipment area is reduced, the installation efficiency is improved significantly, secondly, the safety redundancy design, the hydraulic system is equipped with double circuit pressure protection and overload cut-off function, the multi-channel pipe row traction wheel is provided with mechanical brake locking device, which prevents the oil pipe from falling caused by accidental gas cutting or fault, furthermore, the operation is simple, the key operation is supported, the whole process of pipe down, sampling and recovery is completed, the artificial intervention demand is reduced to the minimum, finally, online installation, online maintenance are supported, quick disassembly and replacement of key parts are supported, maintenance is convenient, the pipeline system adopts corrosion-resistant material, the service life is long, the sampling depth and speed can be accurately controlled, the sample stratification or pollution is prevented, which is suitable for shallow liquid and deep liquid sampling, and the operation is very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating labor.

[0013] Figure 1 It is a structural schematic diagram of the oil liquid sampling device of the present application.

[0014] Figure 2 It is a structural schematic diagram of the tank top mechanism of the present application.

[0015] Figure 3 It is an internal structure schematic diagram of the tank top mechanism of the present application.

[0016] Figure 4 It is a structural schematic diagram of the multi-channel pipe row traction wheel of the present application.

[0017] Figure 5is a structural schematic diagram of the tank-outside ground host of the application.

[0018] Figure 6 is a structural schematic diagram of the tank-in connecting unit of the application.

[0019] Figure 7 is a structural schematic diagram of the internal structure of the tank-outside ground host of the application.

[0020] 1-oil tank, 2-tank top mechanism, 3-tank-outside ground host, 4-connecting pipe cable, 21-tank-in connecting unit, 22-multi-channel pipe row traction wheel, 23-multi-channel hydraulic rotary joint, 24-mounting frame, 31-hydraulic station, 32-pneumatic diaphragm pump, 33-oil storage tank, 34-sampling bottle, 35-host rack, 211-micro gear pump, 212-coupling, 213-hydraulic motor, 214-multi-channel pipe row, 221-pneumatic motor, 222-traction wheel bearing seat, 223-traction wheel body. DETAILED DESCRIPTION

[0021] The embodiments of the application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the application, and cannot be understood as a limitation of the application.

[0022] Please refer to Figures 1-7 The application provides an oil sampling device, comprising an oil tank 1, a tank top mechanism 2, a tank-outside ground host 3 and a connecting pipe cable 4, the tank top mechanism 2 is located above the oil tank 1, the tank-outside ground host 3 is located on the ground outside the oil tank 1, and the connecting pipe cable 4 is connected with the tank top mechanism 2 and the tank-outside ground host 3 respectively.

[0023] The tank top mechanism 2 comprises a mounting frame 24, a multi-channel pipe row traction wheel 22, a multi-channel hydraulic rotary joint 23 and a tank-in connecting unit 21, the multi-channel pipe row traction wheel 22 is arranged on the mounting frame 24, the multi-channel hydraulic rotary joint 23 is connected with the multi-channel pipe row traction wheel 22 and located on one side of the multi-channel pipe row traction wheel 22, the tank-in connecting unit 21 is connected with the multi-channel pipe row traction wheel 22, and the connecting pipe cable 4 is connected with the multi-channel hydraulic rotary joint 23.

[0024] In the embodiment, the tank top mechanism 2 is fixed to the top of the oil tank 1 through a flange opening, is the core execution unit of driving and sampling function, the tank top mechanism 2 is composed of a multi-channel pipe row traction wheel 22, the tank inner connecting unit 21 and a multi-channel hydraulic rotary joint 23; the multi-channel pipe row traction wheel 22 winds and retracts the multi-channel pipeline into the oil tank 1, ensures the orderly arrangement in the pipeline retraction process, avoids winding or twisting, the multi-channel hydraulic rotary joint 23 is used for connecting the tank inner connecting unit 21 and the connecting pipe cable 4, a plurality of independent sealing channels are arranged inside, are respectively used for hydraulic oil and sample liquid transmission, ensure that the medium is continuously transmitted and has no leakage in the rotating process, the ground main machine 3 outside the tank is arranged in the ground area near the oil tank 1, is the control and power center of the system, the connecting pipe cable 4 is arranged along the outer wall of the tank body of the oil tank 1, the connecting pipe cable 4 is used for connecting the tank top mechanism 2 and the ground main machine 3 outside the tank, in the above mode, the driving, retraction and sampling functions are integrated, the external traction steel wire and pulley set are cancelled, the overall equipment occupies less area, the installation efficiency is significantly improved, secondly, the safety redundancy design, the hydraulic system is provided with double-loop pressure protection and overload cut-off function, the multi-channel pipe row traction wheel 22 is provided with a mechanical brake locking device, prevents the oil pipe from falling caused by accidental gas break or fault, further, the operation is simple, supports key operation, completes the whole process of pipe down, sampling and recovery, the requirement of manual intervention is reduced to the minimum, finally, supports online installation, online maintenance, supports quick disassembly and replacement of key components, maintenance is convenient, the pipeline system adopts corrosion-resistant materials, has a long service life, realizes that the sampling depth and speed can be accurately controlled, prevents sample stratification or pollution, is suitable for shallow liquid and deep liquid sampling, and operation is very convenient.

[0025] Further, the multi-channel pipe row traction wheel 22 includes a pneumatic motor 221, a traction wheel bearing seat 222 and a traction wheel body 223, the pneumatic motor 221 is fixedly arranged in the mounting frame 24, the traction wheel body 223 is rotatably arranged in the mounting frame 24, the traction wheel bearing seat 222 is connected with the pneumatic motor 221 and the traction wheel body 223 respectively, the multi-channel hydraulic rotary joint 23 is connected with the traction wheel body 223 and is located on the side, away from the traction wheel bearing seat 222, of the traction wheel body 223.

[0026] In the embodiment, the traction wheel body 223 adopts high-strength nylon or other required materials, and integrates a slip ring structure inside, to ensure continuous medium transmission of the pipeline in the rotating state, the pneumatic motor 221 drives the traction wheel body 223 to rotate through the traction wheel bearing seat 222.

[0027] Further, the in-tank connection unit 21 comprises a micro gear pump 211, a shaft coupling 212, a hydraulic motor 213 and a multi-channel pipe row 214, the multi-channel pipe row 214 is connected with the multi-channel hydraulic rotary joint 23, the hydraulic motor 213 is arranged below the multi-channel pipe row 214, one end of the shaft coupling 212 is connected with the hydraulic motor 213, and the other end of the shaft coupling 212 is connected with the micro gear pump 211.

[0028] In the embodiment, the hydraulic motor 213 controls the rotation of the shaft coupling 212, and drives the micro gear pump 211 to rotate through the shaft coupling 212, the multi-channel pipe row 214 is connected with the multi-channel hydraulic rotary joint 23, and the hydraulic oil enters the hydraulic rotary joint 23 through the multi-channel pipe row 214.

[0029] Further, the out-of-tank ground main machine 3 comprises a hydraulic station 31, a pneumatic diaphragm pump 32, an oil storage tank 33, a sampling bottle 34 and a main machine rack 35, the main machine rack 35 is located outside the oil tank 1, the hydraulic station 31, the pneumatic diaphragm pump 32, the oil storage tank 33 and the sampling bottle 34 are respectively fixedly arranged on the main machine rack 35, the sampling bottle 34 is connected with the oil storage tank 33, the pneumatic diaphragm pump 32 is connected with the oil storage tank 33, and the connecting pipe cable 4 is connected with the hydraulic station 31 and the pneumatic diaphragm pump 32.

[0030] In the embodiment, the hydraulic station 31 is internally provided with a built-in cylinder, a mechanical reversing device and a pressure regulating valve assembly, which provides stable hydraulic power for the in-tank hydraulic motor 213 and adjusts the output power in real time through pressure feedback, the pneumatic diaphragm pump 32 extracts the residual liquid in the connecting pipe cable 4 and the tank top mechanism 2 on one hand, and transports the oil in the oil storage tank 33 to the tank through the connecting pipe cable 4 on the other hand, the oil storage tank 33 is used for storing sample liquid that does not meet the requirements, and has an explosion-proof material shell and a gas-tight valve, the sampling bottle 34 is distributed in a disc type and supports quick disassembly and replacement.

[0031] Further, the connecting pipe cable 4 has a multi-core sleeve structure.

[0032] In the embodiment, the connecting pipe cable 4 has a sleeve structure and internally has a plurality of pipelines for transporting hydraulic oil, sampling sample liquid and oil in the oil storage tank 33, the outer wall of the pipeline is covered with a protective layer and a heating belt, and the connecting pipe cable 4 has connectors at both ends for connection, which supports the quick docking of the tank top mechanism 2 and the out-of-tank ground main machine 3 and reduces the installation complexity.

[0033] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. An oil sampling device, characterized in that: The system comprises an oil tank, a tank top mechanism, a main engine on the ground outside the tank, and a connecting pipe cable. The tank top mechanism is located above the oil tank, the main engine on the ground outside the oil tank is located on the ground outside the oil tank, and the connecting pipe cable is connected to the tank top mechanism and the main engine on the ground outside the tank respectively. The tank top mechanism includes a mounting frame, a multi-channel pipe row traction wheel, a multi-channel hydraulic rotary joint and an in-tank connection unit. The multi-channel pipe row traction wheel is arranged on the mounting frame. The multi-channel hydraulic rotary joint is connected to the multi-channel pipe row traction wheel and is located on one side of the multi-channel pipe row traction wheel. The in-tank connection unit is connected to the multi-channel pipe row traction wheel, and the connecting cable is connected to the multi-channel hydraulic rotary joint.

2. The oil sampling device according to claim 1, characterized in that: The multi-channel tube row traction wheel includes a pneumatic motor, a traction wheel bearing seat and a traction wheel body. The pneumatic motor is fixedly arranged in the mounting frame, the traction wheel body is arranged in the mounting frame, the traction wheel bearing seat is connected to the pneumatic motor and the traction wheel body respectively, and the multi-channel hydraulic rotary joint is connected to the traction wheel body and is located on the side of the traction wheel body away from the traction wheel bearing seat.

3. The oil sampling device according to claim 2, characterized in that: The in-tank connection unit includes a micro gear pump, a coupling, a hydraulic motor and a multi-channel pipe row. The multi-channel pipe row is connected to the multi-channel hydraulic rotary joint. The hydraulic motor is arranged below the multi-channel pipe row. One end of the coupling is connected to the hydraulic motor, and the micro gear pump is connected to the other end of the coupling.

4. The oil sampling device according to claim 1, characterized in that: The off-tank ground host includes a hydraulic station, a pneumatic diaphragm pump, an oil storage tank, a sampling bottle and a host frame. The host frame is located on the outside of the oil tank. The hydraulic station, the pneumatic diaphragm pump, the oil storage tank and the sampling bottle are respectively fixed on the host frame. The sampling bottle is connected to the oil storage tank, the pneumatic diaphragm pump is connected to the oil storage tank, and the connecting pipes and cables are respectively connected to the hydraulic station and the pneumatic diaphragm pump.

5. The oil sampling device according to claim 1, characterized in that: The connecting pipe cable is a multi-core sleeve structure.

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