Oil gas closed collecting device for loading arm loading

Abstract

A closed oil gas collecting device for loading of a crane tube comprises a supporting plate fixedly mounted on the crane tube and a movable plate slidably mounted on the crane tube below the supporting plate in a sleeving mode, driving equipment used for driving the movable plate to move up and down along the crane tube is mounted on the supporting plate, and a reciprocating type dynamic seal is mounted at the joint of the movable plate and the crane tube; the loading arm below the movable plate is further sleeved with a double-layer telescopic pipe used for being matched with a tank opening of a tank car, the top of the double-layer telescopic pipe is connected with the movable plate in a sealed mode, an annular soft magnet matched with the tank car is installed at the bottom of the double-layer telescopic pipe, an inflation cavity is formed in the double-layer telescopic pipe, and the inflation cavity is connected with an air pump through an inflation pipe; an exhaust port is further formed in the movable plate between the double-layer telescopic pipe and the crane pipe, the exhaust port is externally connected with an air storage tank through an exhaust pipe, and an exhaust control valve and an exhaust pump are further installed on the exhaust pipe. The device can flexibly adapt to different tank car tank opening specifications, and is easy to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of oil loading, in particular to an oil and gas closed collection device for loading with a loading arm. Background Art

[0002] At present, during the oil loading process, oil and gas volatilization and leakage often occur, which not only causes waste of resources, but also pollutes the environment and may even lead to safety accidents. To solve this technical problem, the existing technology generally installs a closed collection device during loading with a loading arm to avoid oil and gas leakage. However, the design of the existing closed collection device often relies on directly inserting into the tank mouth of the tank truck to achieve sealing. This design structure is unable to cope well with diverse tank mouth specifications of tank trucks and is difficult to achieve full adaptation. In addition, due to the generally used clamping and fixing method, the disassembly process after the loading operation is complicated and cumbersome, not only time-consuming and laborious, but also may affect work efficiency and operation safety. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an oil and gas closed collection device for loading with a loading arm that can flexibly adapt to different tank mouth specifications of tank trucks and is easy to install and disassemble in view of the deficiencies of the prior art.

[0004] The technical problem to be solved by the utility model is realized through the following technical solutions. The utility model is an oil and gas closed collection device for loading with a loading arm, including a support plate fixedly installed on the loading arm and a movable plate slidably sleeved on the loading arm below the support plate. A driving device for driving the movable plate to move up and down along the loading arm is installed on the support plate, and a reciprocating dynamic seal is installed at the connection between the movable plate and the loading arm; a double-layer telescopic pipe for cooperating with the tank mouth of the tank truck is also sleeved on the loading arm below the movable plate. The top of the double-layer telescopic pipe is hermetically connected to the movable plate, and an annular soft magnet cooperating with the tank truck is installed at the bottom of the double-layer telescopic pipe. An inflation chamber is arranged in the double-layer telescopic pipe, and the inflation chamber is connected to an air pump through an inflation pipe; an exhaust port is also arranged on the movable plate between the double-layer telescopic pipe and the loading arm, and the exhaust port is externally connected to a gas storage tank through an exhaust pipe. An exhaust control valve and an exhaust pump are also installed on the exhaust pipe.

[0005] The technical problem to be solved by the utility model can also be further realized through the following technical solutions. For the above-mentioned oil and gas closed collection device for loading with a loading arm, the driving device is a cylinder, the cylinder is installed on the support plate, and the piston rod of the cylinder is fixedly connected to the movable plate.

[0006] The technical problem to be solved by the utility model can also be further realized through the following technical solutions. For the above-mentioned oil and gas closed collection device for loading with a loading arm, a guide rod is also installed on the movable plate, and a guide hole cooperating with the guide rod is arranged on the support plate.

[0007] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned oil and gas closed collection device for loading with a loading arm, an inflation control valve is installed on the inflation pipe, and the air pump is installed on the movable plate.

[0008] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned oil and gas closed collection device for loading with a loading arm, the air pump is a two-way air pump.

[0009] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned oil and gas closed collection device for loading with a loading arm, the double-layer telescopic pipe is made of rubber or polyvinyl chloride.

[0010] The technical problem to be solved by the present utility model can also be further realized by the following technical solutions. For the above-mentioned oil and gas closed collection device for loading with a loading arm, a pressure gauge is also installed on the movable plate between the double-layer telescopic pipe and the loading arm.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. Through the design of the double-layer telescopic pipe and the cooperation with the annular soft magnet installed at the bottom, the device can flexibly adapt to the tank openings of various specifications and shapes of tank trucks, ensuring that the device can achieve a tight fit regardless of the size change of the tank opening of the tank truck, effectively preventing oil and gas leakage. At the same time, under the control of the driving device, the movable plate can move up and down along the loading arm, further enhancing the adaptability and flexibility of the device;

[0013] 2. The structural design of the whole device takes into account the convenience of operation. The double-layer telescopic pipe and the movable plate are connected in a sealed manner, which not only ensures the sealing performance but also facilitates disassembly and maintenance. In addition, the sliding sleeve design of the movable plate on the support plate makes the installation and disassembly process of the whole device simpler and faster, reducing the labor intensity of the operator and improving the work efficiency;

[0014] 3. The device also has an efficient oil and gas closed collection function. Through the design of the inflation chamber and the air pump, the double-layer telescopic pipe can be tightly attached to the tank opening of the tank truck after inflation to form an effective sealed space. At the same time, the combined use of the exhaust port, the exhaust pipe, the exhaust control valve and the exhaust pump ensures that the device can quickly discharge the internal gas when needed, further improving the collection efficiency and safety of oil and gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE INVENTION

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] Referring to Figure 1 , an oil and gas airtight collection device for loading with a loading arm, comprising a support plate 2 fixedly installed on the loading arm 1 and a movable plate 3 slidably sleeved on the loading arm 1 below the support plate 2. A driving device 4 for driving the movable plate 3 to move up and down along the loading arm 1 is installed on the support plate 2, and a reciprocating dynamic seal 5 is installed at the connection between the movable plate 3 and the loading arm 1; the support plate 2 serves as the basis for the entire device and is firmly fixed on the loading arm 1, providing a solid support platform for the movable plate 3; the movable plate 3 is cleverly slidably sleeved on the loading arm 1 below the support plate 2 and can move smoothly and precisely up and down along the loading arm 1 by the push of the driving device 4. This design not only ensures that the device can quickly adapt to the tank openings 12 of different heights of the tank trucks, but also greatly improves the operation convenience and efficiency; the setting of the reciprocating dynamic seal 5 can always maintain a tight fit with the loading arm 1 during the up and down movement of the movable plate 3, effectively blocking the path of oil and gas leakage.

[0018] Preferably, the driving device 4 is a cylinder. The cylinder is installed on the support plate 2, and the piston rod of the cylinder is fixedly connected to the movable plate 3. In order to prevent the movable plate 3 from running off, a guide rod 15 is also installed on the movable plate 3, and a guide hole cooperating with the guide rod 15 is provided on the support plate 2.

[0019] Secondly, a double-layer telescopic pipe 6 for cooperating with the tank truck manhole 12 is also sleeved on the loading arm 1 below the movable plate 3. The top of the double-layer telescopic pipe 6 is hermetically connected to the movable plate 3. An annular soft magnet 7 for cooperating with the tank truck 13 is installed at the bottom of the double-layer telescopic pipe 6. An inflation chamber 8 is arranged inside the double-layer telescopic pipe 6. The inflation chamber 8 is connected to an air pump 9 through an inflation pipe. The double-layer telescopic pipe 6 is one of the key components for the device to achieve airtight collection of oil and gas. Its top is hermetically connected to the movable plate 3, and an annular soft magnet 7 that closely cooperates with the tank truck manhole 12 is installed at the bottom. This design enables the double-layer telescopic pipe 6 to expand and contract as the movable plate 3 moves, so as to adapt to tank truck manholes 12 with different diameters. The application of the annular soft magnet 7 further enhances the adsorption force between the double-layer telescopic pipe 6 and the tank truck manhole 12, further improving the sealing effect of the device. At the same time, the inflation chamber 8 arranged inside the double-layer telescopic pipe 6 is connected to the air pump 9 through the inflation pipe, so that the inflation chamber 8 can be inflated when needed, making the double-layer telescopic pipe 6 fit more closely to the tank truck manhole 12, forming a more effective airtight space to avoid oil and gas leakage. Preferably, the double-layer telescopic pipe 6 is made of rubber or polyvinyl chloride material;

[0020] Preferably, an inflation control valve is installed on the inflation pipe, and the air pump 9 is installed on the movable plate 3. As a key component for providing inflation power, the air pump 9 is ingeniously installed on the movable plate 3 to ensure that it moves together with the movable plate 3, thus maintaining the connection stability with the inflation chamber 8. In particular, the air pump 9 is a two-way air pump, which means that it can not only inflate the inflation chamber 8, but also extract the gas therein when needed, providing more possibilities for the flexible operation of the device.

[0021] Before loading, after the loading arm 1 is inserted into the tank truck manhole 12, the double-layer telescopic pipe 6 is sleeved outside the tank truck manhole 12 and adsorbed to the outer wall of the tank truck 13 through the annular soft magnet 7, so as to form an airtight space among the tank truck 13, the double-layer telescopic pipe 6 and the movable plate 3 for oil and gas collection to avoid oil and gas leakage. An exhaust port 10 is also arranged on the movable plate 3 between the double-layer telescopic pipe 6 and the loading arm 1. The exhaust port 10 is externally connected to a gas storage tank 11 through an exhaust pipe. An exhaust control valve and an exhaust pump 9 are also installed on the exhaust pipe, facilitating the subsequent suction of the leaked oil and gas into the gas storage tank 11 by the exhaust pump 9 after loading to avoid oil and gas leakage. Preferably, a pressure gauge 14 is also installed on the movable plate 3 between the double-layer telescopic pipe 6 and the loading arm 1 for detecting the oil and gas pressure in the airtight space, facilitating the operator to take timely measures by observing the reading of the pressure gauge 14.

[0022] The usage method of the present utility model is as follows:

[0023] 1. Preparation work

[0024] Inspection of equipment: Before each use, a comprehensive inspection should be carried out to ensure that components such as the support plate 2, the movable plate 3, the driving device 4 (cylinder), the reciprocating dynamic seal 5, the double-layer telescopic pipe 6, the annular soft magnet 7, the air pump 9, the charging pipe, the exhaust port 10, and the exhaust pipe are in good condition without damage or leakage;

[0025] Connect the air source: Connect the air pump 9 to an external air source to ensure that the air pump 9 can operate normally and provide sufficient inflation pressure;

[0026] Prepare the tank truck 13: Ensure that the tank truck 13 has been correctly parked in the designated position, the tank opening 12 of the tank truck is clean without debris, and it is ready to receive the oil product.

[0027] 2. Installation and commissioning

[0028] Install the double-layer telescopic pipe 6: Slip the double-layer telescopic pipe 6 over the loading arm 1 and ensure that the annular soft magnet 7 at its bottom keeps a certain distance from the tank opening 12 of the tank truck for subsequent adjustment;

[0029] Connect the movable plate 3: Slide the movable plate 3 over the loading arm 1 under the support plate 2 and connect the piston rod of the cylinder to ensure that the movable plate 3 can move smoothly;

[0030] Adjust the guide rod 15: Ensure that the guide rod 15 on the movable plate 3 is aligned with the guide hole on the support plate 2 and insert it therein to limit the movement trajectory of the movable plate 3;

[0031] Test the sealing performance: Before formal use, a sealing performance test can be carried out first. Drive the movable plate 3 up and down through the cylinder, observe the sealing condition between the reciprocating dynamic seal 5 and the double-layer telescopic pipe 6 and the tank opening 12 of the tank truck, and ensure that there is no leakage.

[0032] 3. Loading of oil products

[0033] Start loading: First insert the loading arm 1 into the tank opening 12 of the tank truck, then use the driving device 4 to adjust the height of the movable plate 3 so that the double-layer telescopic pipe 6 is sleeved outside the tank opening 12 of the tank truck. Then start the air pump 9 to inflate the inflation chamber 8 in the double-layer telescopic pipe 6 so that the annular soft magnet 7 closely adheres to and adsorbs to the outer wall of the tank truck 13 around the tank opening 12, and then the oil product loading operation can be started. The oil product is transported into the tank of the tank truck 13 through the loading arm 1;

[0034] Monitor the oil and gas recovery: During the loading process, the oil and gas will volatilize from the tank opening 12 of the tank truck. These oil and gas will be collected by the double-layer telescopic pipe 6 and enter the gas storage tank 11 through the exhaust port 10 and the exhaust pipe for recovery treatment. The operator should regularly check the smoothness of the exhaust port 10 and the exhaust pipe to ensure that the oil and gas can be recovered smoothly.

Claims

1. An oil and gas airtight collection device for loading with a loading arm, characterized in that: It includes a support plate fixedly installed on the loading arm and a movable plate slidably sleeved on the loading arm below the support plate. A driving device for driving the movable plate to move up and down along the loading arm is installed on the support plate, and a reciprocating dynamic seal is installed at the connection between the movable plate and the loading arm; a double-layer telescopic pipe for cooperating with the tank truck manhole is also sleeved on the loading arm below the movable plate. The top of the double-layer telescopic pipe is hermetically connected to the movable plate, and an annular soft magnet for cooperating with the tank truck is installed at the bottom of the double-layer telescopic pipe. An inflation chamber is arranged in the double-layer telescopic pipe, and the inflation chamber is connected to an air pump through an inflation pipe; an exhaust port is also arranged on the movable plate between the double-layer telescopic pipe and the loading arm, and the exhaust port is externally connected to a gas storage tank through an exhaust pipe. An exhaust control valve and an exhaust pump are also installed on the exhaust pipe.

2. The vapor-tight collection device for loading with a loading arm according to claim 1, characterized in that: The driving device is a cylinder. The cylinder is installed on the support plate, and the piston rod of the cylinder is fixedly connected to the movable plate.

3. The vapor tight collection device for loading with loading arm according to claim 1 or 2, characterized in that: A guide rod is also installed on the movable plate, and a guide hole cooperating with the guide rod is arranged on the support plate.

4. The vapor tight collection device for loading with loading arm according to claim 1, characterized in that: An inflation control valve is installed on the inflation pipe, and the air pump is installed on the movable plate.

5. The vapor tight collection device for loading with loading arm according to claim 1 or 4, characterized in that: The air pump is a two-way air pump.

6. The vapor-tight collection device for loading with a loading arm according to claim 1, wherein: The double-layer telescopic pipe is made of rubber or polyvinyl chloride.

7. The vapor tight collection device for loading by loading arm according to claim 1, characterized in that: A pressure gauge is also installed on the movable plate between the double-layer telescopic pipe and the loading arm.

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