Single tube external draw type oil tank sampling device

Abstract

The utility model discloses a single pipe outer draws formula oil tank sampling device, include: the support platform of connecting oil tank oil outlet, one end of support platform is equipped with a pair of bearing support, is equipped with hollow shaft on bearing support, the hollow shaft is equipped with wire reel on, is equipped with flexible oil pipe on wire reel, the periphery of the disc piece formed by wire reel with flexible oil pipe is equipped with seal cover, one end of flexible oil pipe with hollow shaft intercommunication, the other end of flexible oil pipe is from the port place of seal cover lower part and passes through support platform body to the inside of oil tank, the end of flexible oil pipe still is equipped with counterweight, one end of hollow shaft is equipped with rocker arm, the other end of hollow shaft is equipped with rotary connector, one end of rotary connector with hollow shaft intercommunication, the other end of rotary connector passes through pipe fitting and is connected with the input end of pneumatic diaphragm pump, the output end of pneumatic diaphragm pump with the first port intercommunication of three -way valve, the second port of three -way valve connects oil nozzle.

Description

Technical Field

[0001] This utility model relates to the field of oil production equipment technology, and in particular to a single-pipe external extraction oil tank sampling device. Background Technology

[0002] In the process of petrochemical production, storage and transportation, in order to obtain parameters such as the physical properties of the media in these storage tanks, sampling personnel need to climb to the top of the tank to manually collect samples so that laboratory personnel can analyze and test them in a timely manner.

[0003] The current manual sampling method is as follows: The operator is on top of the tank, and through the sampling port reserved on the tank, uses a sampling bottle made of brass with the mouth of the bottle plugged. The sampling bottle is tied with a rope tied at intervals. After the sampling bottle is lowered to the desired position, the rope is pulled up to open the plug, and the medium at that position will automatically flow into the sampling bottle. The sampling bottle is then taken out by the rope, and the medium in the sampling bottle is transferred to another sampling bottle. This process is repeated multiple times to extract the medium from different positions.

[0004] This traditional manual sampling method is time-consuming, labor-intensive, and difficult to control in terms of sample representativeness. It also results in high labor intensity for sampling personnel and is often constrained by adverse weather conditions such as rain, snow, and strong winds. In particular, flammable, explosive, toxic, and harmful media can seriously threaten the lives of sampling personnel. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned technical problems by providing a single-tube external extraction oil tank sampling device, which provides a more convenient device for manual operation and solves the problems of time-consuming and labor-intensive traditional manual sampling.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a single-tube external extraction oil tank sampling device, characterized in that it comprises:

[0007] A support platform is connected to the oil inlet of the oil tank. One end of the support platform is equipped with a pair of bearing brackets. A hollow shaft is mounted on the bearing brackets. A wire reel is mounted on the hollow shaft. A flexible oil pipe is mounted on the wire reel. A sealing cover is provided on the outer periphery of the reel formed by the wire reel and the flexible oil pipe. One end of the flexible oil pipe is connected to the hollow shaft. The other end of the flexible oil pipe passes through the support platform body from the lower port of the sealing cover to the oil tank. A counterweight is also provided at the end of the flexible oil pipe.

[0008] One end of the hollow shaft is provided with a rocker arm, and the other end of the hollow shaft is provided with a rotary connector. One end of the rotary connector is connected to the hollow shaft, and the other end of the rotary connector is connected to the input end of the pneumatic diaphragm pump through a pipe fitting. The output end of the pneumatic diaphragm pump is connected to the first port of the three-way valve through a pipe fitting.

[0009] The second port of the three-way valve is connected to the oil nozzle;

[0010] The third port of the three-way valve is equipped with a return oil pipe, which passes through the support platform body to the oil tank.

[0011] A further preferred technical solution is that the lower port of the sealing cover is provided with an elbow that cooperates with a flexible oil pipe, and the elbow is shaped like an inverted oil pot.

[0012] A further preferred technical solution includes a plurality of sampling containers located below the nozzle, arranged in a row on a platform, a base on the support platform, a pair of guide rods on the base, a pair of sliders sliding along the guide rod axis on the pair of guide rods, the platform being connected to the sliders, a tray on the platform, and the sampling containers being placed sequentially in the container seats of the tray, with a handle on one side of the platform.

[0013] A further preferred technical solution is that the support platform body is also provided with a sealing flange that cooperates with the flexible oil pipe.

[0014] A further preferred technical solution is that a roller is provided on one side of the flexible oil pipe between the elbow and the support platform. The roller is in frictional connection with the flexible oil pipe. One end of the roller is connected to the input end of the reducer. The output end of the reducer is connected to a pointer, which cooperates with a dial provided on one side of the reducer.

[0015] A further preferred technical solution includes a tensioning wheel located on the side of the flexible oil pipe away from the roller. The tensioning wheel is rotatably mounted on a movable shaft, which is slidably mounted on the support base. A spring connection is provided between the movable shaft and the rotating shaft.

[0016] Compared with the prior art, the advantages of this utility model are: simple and reliable structure, small size of the whole device, easy to transport and install; greatly simplifies the workload of operators and reduces the possibility of toxic and harmful gases causing harm to personnel. Attached Figure Description

[0017] Figure 1 This is one of the isometric drawings of this utility model;

[0018] Figure 2 This is an isometric drawing of the present invention without a sealing cover;

[0019] Figure 3 This is the second isometric drawing of this utility model;

[0020] Figure 4 This is a diagram of the tensioner wheel axle of this utility model;

[0021] In the diagram: 1. Flange; 2. Sealing flange; 3. Flexible oil pipe; 4. Counterweight; 5. Handle; 6. Tray; 7. Platform; 8. Slider; 9. Base; 10. Guide rod; 11. Air source dual unit; 12. Pneumatic diaphragm pump; 13. Oil nozzle; 14. Rotary connector; 15. Sealing cover; 16. Rocker arm; 17. Hollow shaft; 18. Bearing bracket; 19. Three-way valve; 20. Port; 21. Return oil pipe; 22. Sampling container; 23. Elbow; 24. Roller; 25. Reducer; 26. Coil; 27. Blocking positioning block; 28. Dial; 29. ​​Pointer; 30. Spring; 31. Moving shaft; 32. Tensioner. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example

[0024] In the process of petrochemical production, storage and transportation, in order to obtain the physical properties and other parameters of the medium in these storage tanks, sampling personnel need to climb to the top of the tank to conduct manual sampling so that laboratory personnel can analyze and test them in a timely manner. Traditional manual sampling methods are time-consuming, labor-intensive, difficult to control the representativeness of the samples, and involve high labor intensity for sampling personnel. They are often restricted by adverse weather conditions such as rain, snow and strong winds. In particular, flammable, explosive, toxic and harmful media can seriously threaten the lives of sampling personnel. In order to solve the existing problems, this application provides a single-tube external extraction oil tank sampling device, including a support platform 1 connected to the oil tank intake port. One end of the support platform 1 has a stop that mates with the oil tank intake port, and the other end of the support platform 1 is provided with a pair of bearing brackets 18. A hollow shaft 17 is mounted on the support 18, and a wire reel 26 is mounted on the hollow shaft 17. A flexible oil pipe 3 is mounted on the wire reel 26. A sealing cover 15 is provided on the outer periphery of the reel formed by the wire reel 26 and the flexible oil pipe 3. The sealing cover 15 is fixed on the bearing support 18. One end of the flexible oil pipe 3 is connected to the hollow shaft 17, and the other end of the flexible oil pipe 3 extends from the lower part of the sealing cover 15 near the support platform 1 to the outside of the sealing cover 15. The support platform 1 has a through hole that penetrates the support platform body. The other end of the flexible oil pipe 3 penetrates the support platform 1 body from the outside of the through hole to the oil tank. A counterweight 4 is also provided at the other end of the flexible oil pipe 3.

[0025] like Figure 1 and 2 As shown, a sealing flange 2 is also provided at the through hole of the support platform 1 body to cooperate with the flexible oil pipe 3, so that the flexible oil pipe 3 forms a sealed cooperation with the support platform 1 body through the sealing flange 2.

[0026] One end of the hollow shaft 17 is provided with a rocker arm 16, and the other end of the hollow shaft 17 is provided with a rotary connector 14. One end of the rotary connector 14 is connected to the hollow shaft 17, and the other end of the rotary connector 14 is connected to the input end of the pneumatic diaphragm pump 12 through a pipe. The output end of the pneumatic diaphragm pump 12 is connected to the first port of the three-way valve 19 through a pipe. The pneumatic diaphragm pump 12 is connected to an external air source through an air source dual unit 12. The support platform 1 is provided with a bracket for installing the pneumatic diaphragm pump 12 and the air source dual unit 11.

[0027] The second port of the three-way valve 19 is connected to the oil nozzle 13. Several sampling containers 22 are arranged below the oil nozzle 13. The sampling containers 22 are arranged in a row on the platform 7. The support platform 1 is provided with a base 9. The base 9 is provided with a pair of guide rods 10. The pair of guide rods 10 is provided with a pair of sliders 8 that slide along the guide rod axis. The platform 7 is connected to the sliders 8. The platform 7 is provided with a tray 6. The sampling containers 22 are placed in the container seats of the tray 6 in sequence. The platform 7 is provided with a handle 5 on one side. The platform 7 can be pushed to move linearly back and forth along the guide rods 10 through the handle 5, so that the sampling containers 22 are aligned with the second port of the three-way valve 19 in sequence. The base 9 has a baffle on one side. The baffle is provided with positioning holes spaced apart along the guide rod axis. The platform 7 is provided with a position hole on the side corresponding to the baffle. Any positioning hole is connected to the position hole through a detachable blocking positioning block 27.

[0028] The third port of the three-way valve 19 is provided with a return oil pipe 21, which passes through the flange 1 body to the oil tank;

[0029] The three-way valve 19 is equipped with a switch, which controls the connection between the first port and the second or third port.

[0030] The lower port 20 of the sealing cover 15 is provided with an elbow 23 for the management and straightening of the flexible oil pipe 3. The elbow 23 is made of sheet metal and is shaped like an inverted oil can. The function of the elbow 23 is to manage the posture and direction of the flexible oil pipe 3 and prevent it from spreading out. On the other hand, it can also make the flexible oil pipe 3 move in and out more smoothly in cooperation with the sealing flange 2 of the flexible oil pipe 3.

[0031] like Figure 3As shown, a roller 24 is provided on one side of the flexible oil pipe 3 between the elbow 23 and the sealing flange 2. The roller 24 is frictionally connected to the flexible oil pipe 3. The roller 24 is rotatably mounted on the support seat via a rotating shaft. One end of the rotating shaft is connected to the roller 24, and the other end of the rotating shaft is provided with a reducer 25. The rotating shaft is connected to the input end of the reducer 25, and the output end of the reducer 25 is connected to a pointer 29. The pointer 29 cooperates with a dial 28 provided on one side of the reducer 25.

[0032] like Figure 4 As shown, a tensioning wheel 32 is provided on the side of the flexible oil pipe 3 away from the roller 24. The tensioning wheel 32 is rotatably mounted on a movable shaft 31. The movable shaft 31 is slidably mounted on the support base. A spring 30 is provided between the movable shaft 31 and the rotating shaft. Through a spring 30, the flexible oil pipe 3 always maintains frictional contact between the roller 24 and the tensioning wheel 32.

[0033] The reel 26, along with the sealing cover 15, hollow shaft 17, rocker arm 16, bearing bracket 18, and other components, constitute a hand-cranked lifting mechanism. The function of the hand-cranked lifting mechanism is to extend and retract the flexible oil pipe 3 so that the flexible oil pipe 3 can reach different depths. The flexible oil pipe 3 is arranged radially on the reel 26.

[0034] The roller 24, support base and reducer 25 form a meter counter. The roller 24 is in close contact with the outer wall of the flexible oil pipe 3. The pressure of the contact can be adjusted according to actual needs. The function of the meter counter is to count the lifting distance of the flexible oil pipe 3 and mark the sampling point position.

[0035] The oil suction pipe is composed of components such as counterweight 4, flexible oil pipe 3, rotary connector 14, three-way valve 19, pneumatic diaphragm pump 12, and oil nozzle 13; the function of the oil suction pipe is to extract the oil at the sampling point into the sampling container 22.

[0036] The entire oil pipeline circuit starts with a flexible oil pipe 3 inserted into the tank. After exiting the tank, it is connected to the input end of the pneumatic diaphragm pump 12 via a fitting. After passing through the pneumatic diaphragm pump 12, the output end of the pneumatic diaphragm pump 12 is connected to the first port of the three-way valve 19 via a fitting. The third port of the three-way valve 19 then returns to the oil tank through the return oil pipe 21. The first port of the three-way valve 19 is connected to the pneumatic diaphragm pump 12, the second port is connected to the sampling container 22, and the third port is connected to the return oil pipe 21. The connection between the first port and the second or third port of the three-way valve 19 is controlled by a switch. The connection between the first port and the second port of the three-way valve 19 is controlled by a switch, so that the oil pipeline circuit is connected to the sampling container 22. When the switch is opened, some oil can enter the sampling container 22. When the switch is closed, all the oil flows back into the tank through the return oil pipe 21.

[0037] The sampling container 22 positioning slide is composed of a guide rail 10, a slider 8, a platform 7, a blocking positioning block 27, a handle 5, and a tray 6 for the sampling container 22. The function of the sampling container 22 positioning slide is to support and position the sampling container 22 so that the sampling container 22 can be placed and switched quickly and accurately by the operator.

[0038] The oil tank sampling device is installed on the sampling port flange of the oil tank. After installation, the air source is connected to the air inlet of the air source dual unit 11 of the sampling device. The entire device can start sampling under manual operation. The specific operation procedure is as follows: Manually place an appropriate number of empty sampling containers 22 on the tray 6, pull out the blocking positioning block 27 so that the tray 6 can slide along the guide rod 10, push the sampling container 22 to the initial position so that the bottle mouth of the sampling container 22 is aligned with the oil nozzle 13, insert the blocking positioning block 27 into the position hole through the positioning hole to temporarily fix the tray 6; operate the rocker arm 16, observe the pointer 29 of the meter counter, place the flexible oil pipe 3 at the sampling point position, and start the pneumatic diaphragm pump 12. Connect the first and third ports of the three-way valve 19 by switching on the switch to drain the oil previously sucked into the flexible oil tube 3, confirming that the oil at the new sampling point has been sucked into the flexible oil tube 3; open the switch to connect the first and second ports of the three-way valve 19, injecting sufficient oil into the sampling container 22, then turn off the switch and the pneumatic diaphragm pump 12; pull out the blocking positioning block 27, then push the tray 6 to push the next sampling container 22 under the oil nozzle 13, operate the rocker arm 16, observe the pointer 29 of the meter counter, place the flexible oil tube 3 at the sampling point position, start the pneumatic diaphragm pump 12, and inject sufficient oil into the sampling container 22; repeat the above actions until all sampling is completed.

[0039] 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 single-tube external extraction oil tank sampling device, characterized in that, include: A support platform is connected to the oil inlet of the oil tank. One end of the support platform is equipped with a pair of bearing brackets. A hollow shaft is mounted on the bearing brackets. A wire reel is mounted on the hollow shaft. A flexible oil pipe is mounted on the wire reel. A sealing cover is provided on the outer periphery of the reel formed by the wire reel and the flexible oil pipe. One end of the flexible oil pipe is connected to the hollow shaft. The other end of the flexible oil pipe passes through the support platform body from the lower port of the sealing cover to the oil tank. A counterweight is also provided at the end of the flexible oil pipe. One end of the hollow shaft is provided with a rocker arm, and the other end of the hollow shaft is provided with a rotary connector. One end of the rotary connector is connected to the hollow shaft, and the other end of the rotary connector is connected to the input end of the pneumatic diaphragm pump through a pipe fitting. The output end of the pneumatic diaphragm pump is connected to the first port of the three-way valve through a pipe fitting. The second port of the three-way valve is connected to the oil nozzle; The third port of the three-way valve is equipped with a return oil pipe, which passes through the support platform body to the oil tank.

2. The single-tube external extraction oil tank sampling device according to claim 1, characterized in that, The lower port of the sealing cover is provided with an elbow that mates with a flexible oil pipe, and the elbow is shaped like an inverted oil pot.

3. A single-tube external extraction oil tank sampling device according to claim 1 or 2, characterized in that, Several sampling containers are arranged in a row below the nozzle on the platform. The platform has a base, a pair of guide rods, and a pair of sliders that slide along the guide rod axis. The platform is connected to the sliders. A tray is provided on the platform, and the sampling containers are placed in the container seats of the tray in sequence. A handle is provided on one side of the platform.

4. A single-tube external extraction oil tank sampling device according to claim 1 or 2, characterized in that, The support platform body is also equipped with a sealing flange that cooperates with the flexible oil pipe.

5. A single-tube external extraction oil tank sampling device according to claim 2, characterized in that, A roller is provided on one side of the flexible oil pipe between the elbow and the support platform. The roller is in frictional connection with the flexible oil pipe. One end of the roller is connected to the input end of the reducer. The output end of the reducer is connected to a pointer, which cooperates with a dial provided on one side of the reducer.

6. A single-tube external extraction oil tank sampling device according to claim 5, characterized in that, The flexible oil pipe is provided with a tensioning wheel on the side away from the roller. The tensioning wheel is rotatably mounted on a movable shaft. The roller is rotatably mounted on a support base via a rotating shaft. The movable shaft is slidably mounted on the support base. A spring connection is provided between the movable shaft and the rotating shaft.

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