CN107128867B - Connecting device for loading arm and tank opening - Google Patents
Connecting device for loading arm and tank opening Download PDFInfo
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- CN107128867B CN107128867B CN201710495413.5A CN201710495413A CN107128867B CN 107128867 B CN107128867 B CN 107128867B CN 201710495413 A CN201710495413 A CN 201710495413A CN 107128867 B CN107128867 B CN 107128867B
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- cover plate
- cylinder
- gas collecting
- clamping lever
- collecting cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/42—Filling nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a connecting device of a loading arm and a tank opening.A gas collecting cylinder and a cylinder are arranged on a cover plate, a gas outlet flange is arranged on the side surface of the gas collecting cylinder and is used for connecting a gas recovery channel, and a cylinder cover is arranged above the gas collecting cylinder; the upper surface of the cover plate is provided with a groove, a gas collecting cylinder is arranged in the groove, the cover plate is provided with a threaded hole, the threaded hole is used for installing a cylinder, a through hole is formed in the middle of the cover plate, the flow-through pipe penetrates through the through hole, a gap is formed between the cover plate and the outer circumferential surface of the flow-through pipe, and the gap is connected with the gas collecting cylinder; the lower surface of the cover plate is provided with a fan-shaped plate, the upper part of the overflow pipe is provided with an external thread, and a round nut arranged on the external thread can tightly press the cylinder cover; the device has simple structure, is convenient to manufacture, and reduces the production cost; the applicability is strong, can be used for the car loading of most of liquid types and tank mouths with different sizes; the reliability of similar structures is improved, the safety is improved for the loading of dangerous and harmful fluids, and the environmental pollution is reduced.
Description
Technical Field
The invention belongs to the technical field of fluid loading and unloading, and particularly relates to a connecting device of a loading arm and a tank opening.
Background
The patent relates to the technical field of fluid loading and unloading, in particular to loading and unloading of liquid which has strong volatility, is inflammable and explosive or has environmental hazard; the tail end of the loading arm is provided with a vertical pipe, the vertical pipe is provided with a conical sealing cap, and the vertical pipe and the conical sealing cap jointly form a connecting structure of the loading arm and a tank car. The vertical pipe extends to the bottom of the tank in a telescopic mode, the loading and unloading arm loads liquid into the tank car through the vertical pipe during working, and the conical sealing cap is tightly matched with the tank opening of the tank car to block the annular gap between the vertical pipe and the tank opening. And after the loading is finished, taking the vertical pipe out of the tank car. The cone-shaped sealing cap is added on the vertical pipe or other sealing devices are added on the vertical pipe, generally the sealing element is pressed on the opening of the tank by the dead weight of the vertical pipe and the sealing element or the cylinder from the outside of the opening of the tank. During loading, because the liquid has strong volatility, airflow with larger pressure is generated in the tank car, and in certain time periods of loading, the pressing force provided by the connecting structures is often smaller than the impact force of the airflow, so that the airflow is easy to rush out of the connecting part of the loading arm and the tank opening; in addition, in the loading process, the pressure of the heavy vehicle tire is reduced, the binding force between the connecting structure and the tank opening is reduced, the leakage is increased, and potential explosion hazard or environmental hazard is caused. After the tank car is used for many years, the tank opening has the problems of unevenness, deformation and the like, the connection between the connecting structure and the tank opening cannot be well sealed, and the sealing effect is poorer.
In recent years, better connection methods have been sought for solving the above problems. The basic principle of the connection mode is that a sealing cover with a certain shape is arranged on the vertical pipe, the sealing cover covers the upper end face of the tank opening, clamping is carried out from the inside of the tank opening, the connection structure is firmly clamped with the tank opening, and the connection structure descends together with a tank car during loading. According to the principle, new structures with use value are obtained, but in practical use, the new structures have respective problems.
For example, 1: chinese patent application No. 201210464639.6, published (announced) No. CN 102927388A, discloses a locking type oil gas recovery sealing device on the top of an automobile, which comprises a vertical pipe and a sealing cover matched with a tank opening on the top of an oil tank truck, wherein a vertical pipe through hole is arranged in the center of the sealing cover, a gas-liquid phase cylinder body is arranged above the sealing cover, a vertical pipe lifting cylinder is arranged in the gas-liquid phase cylinder body, a piston is sleeved on the vertical pipe and fixedly connected with the vertical pipe, the vertical pipe body forms a piston rod of the vertical pipe lifting cylinder, a cover plate cylinder body is arranged below the sealing cover, and a bottom buckling and pressing mechanism matched with the inner edge of the tank opening of the oil tank truck is arranged at the lower part of the cover plate cylinder body.
The device uses a vertical pipe as a piston rod, can not adopt a general standard cylinder, needs to manufacture a special cylinder, is inconvenient to manufacture and has high cost; secondly, the clamping jaw is buckled and pressed in the tank opening of the device, the clamping can be realized only under the condition that the lower end face of the tank opening is flat, and the clamping effect is poor in use.
For example, 2: chinese patent application No. 201610155508.8, granted publication No. CN 105692539B, discloses a sealing vertical pipe for a loading crane, which comprises a fixed outer pipe and a telescopic inner pipe, wherein a sealing cap lifting pipe is sleeved outside the fixed outer pipe, and the lower end of the sealing cap lifting pipe is provided with a sealing cap matched with a tank opening of a tank truck; the sealing cap is equipped with the sealing cap panel, and the below of sealing cap panel is equipped with the stand pipe of sealing cap panel, and stand pipe and the coaxial setting of sealing cap fall way, the lower extreme of flexible inner tube be equipped with stand pipe lower extreme complex keep off the ring, the lower surface of sealing cap panel is equipped with the inflatable sealing mechanism of round and jar mouth close fit, be equipped with on the sealing cap panel between inflatable sealing mechanism and the stand pipe with jar mouth inner wall cooperation make the clamping mechanism of sealing cap panel and jar mouth closely laminating.
The device has a complex structure, the inflatable liner is easy to age and damage, the friction part is too much (sparks can be generated due to steel friction), and the level of the clamping jaw cannot be ensured when the connecting rod mechanism is clamped. The safety is poor when the explosive fluid loading and unloading device is used for loading and unloading explosive fluid.
Disclosure of Invention
The invention provides a novel connecting device aiming at the defects of the prior art, aims to realize reliable connection between a loading arm and a loading tank opening, has simple structure, convenient manufacture and strong universality, reduces the cost and improves the use safety.
The technical scheme adopted by the invention is as follows:
loading arm and jar mouth connecting device, including the apron, its characterized in that: the cover plate is provided with a gas collecting cylinder and a cylinder, the side surface of the gas collecting cylinder is provided with a gas outlet flange, the gas outlet flange is used for connecting a gas recovery channel, and a cylinder cover is arranged above the gas collecting cylinder;
the upper surface of the cover plate is provided with an annular groove, a gas collecting cylinder is arranged in the groove, the cover plate is provided with a threaded hole for installing a cylinder, the middle of the cover plate is provided with a through hole, the overflowing pipe penetrates through the through hole, a gap is arranged between the cover plate and the outer circumferential surface of the overflowing pipe, and the gap is connected with the gas collecting cylinder;
the lower surface of the cover plate is provided with a fan-shaped plate, the upper part of the overflow pipe is provided with an external thread, and a round nut arranged on the thread can tightly press the cylinder cover;
the lower surface of a piston rod of the air cylinder is provided with a U-shaped lifting lug, a hollow part of the U-shaped lifting lug is provided with a mandrel, a rotating stop block and a clamping lever are arranged on the mandrel, and the rotating stop block and the clamping lever can rotate around the mandrel together; the lower surface of the cover plate is provided with a rod-collecting copper plate, and a groove in the plumb direction is arranged in the middle of the rod-collecting copper plate and used for collecting and releasing the clamping lever.
Furthermore, the clamping lever is connected with the mandrel through a torsion spring.
Further, the groove on the upper surface of the cover plate is an annular groove.
Furthermore, the cylinder, the U-shaped lifting lug, the torsion spring, the rotating stop block, the clamping lever and the rod-retracting copper plate are arranged in two groups in a manner of being symmetrical about the center of the cover plate.
Furthermore, the gaps are fan-shaped gaps, and the number of the gaps is two.
Furthermore, a connecting flange is arranged at the upper part of the overflow pipe.
Furthermore, a sealing gasket is arranged between the cover plate and the tank opening.
The invention has the following beneficial effects:
the device has simple structure, is convenient to manufacture, and reduces the production cost; the device has strong applicability, and can be used for loading most of liquid types and tank mouths with different sizes; the device improves the reliability of similar structures, improves the safety of dangerous and harmful fluid loading, and reduces the environmental pollution.
This device has divided into four modules with the connection structure of loading and unloading arm and jar mouth, realizes overflowing respectively, the gas collection exhausts, presss from both sides tightly, receives four functions of pole, according to module design, manufacturing, and the design of whole device is far more reliable, simple, practical than current structure. The concrete points are as follows:
1. the device can be used for clamping common tank openings with various specifications;
2. 2 universal standard cylinders are adopted to provide clamping power, so that the cost is low and the manufacturing is convenient; the contact points are symmetrical and reliable;
3. a lever structure is adopted to clamp the connecting device of the loading arm and the tank opening from the tank opening; 2 levers clamp four points, the height position of each clamping point can be automatically adjusted, and the height adjustment device adapts to various condition changes of a tank opening;
4. a simple and novel rod retracting structure is adopted;
5. the gas cylinder and the overflow pipe are formed uniquely and practically.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic view of the invention taken from the direction of B-B in a middle section of a gas cylinder.
FIG. 3 is a schematic view of the lid panel gasket taken along the line D-D of the present invention.
Fig. 4 isbase:Sub>A side viewbase:Sub>A-base:Sub>A of the structure of the present invention (with the clamping lever in the horizontal clamping position).
Figure 5 is a bottom partial view of the inventive structure taken from the center of the mandrel.
Fig. 6 isbase:Sub>A side viewbase:Sub>A-base:Sub>A of the inventive structure (clamping lever in the plumb-collapsed position).
Detailed Description
The invention is further described with reference to the accompanying drawings:
as shown in fig. 1-6, the connecting device of the loading arm and the tank opening comprises a cover plate 2, and is characterized in that: the cover plate 2 is provided with a gas collecting cylinder 4 and a cylinder 6, the side surface of the gas collecting cylinder 4 is provided with a gas outlet flange 13, the gas outlet flange 13 is used for connecting a gas recovery channel, and a cylinder cover 7 is arranged above the gas collecting cylinder 4;
the upper surface of the cover plate 2 is provided with a groove, a gas collecting cylinder 4 is arranged in the groove, the cover plate 2 is provided with a threaded hole, the threaded hole is used for installing a cylinder 6, a through hole is formed in the middle of the cover plate, the flow-through pipe penetrates through the through hole, a gap 31 is formed between the cover plate and the outer circumferential surface of the flow-through pipe, and the gap 31 is connected with the gas collecting cylinder 4;
the lower surface of the cover plate 2 of the overflow pipe is provided with a sector plate 51, the upper part of the overflow pipe 5 is provided with an external thread, and a round nut 9 arranged on the thread can press the cylinder cover 7;
the lower surface of a piston rod of the air cylinder 6 is provided with a U-shaped lifting lug 10, the hollow part of the U-shaped lifting lug 10 is provided with a mandrel 12, the mandrel 12 is provided with a rotating stop block 14 and a clamping lever 15, and the rotating stop block and the clamping lever can rotate around the mandrel; the lower surface of the cover plate 2 is provided with a take-up copper plate 16, and a groove 161 in the plumb direction is arranged in the middle of the take-up copper plate 16 and used for taking up and paying off a clamping lever.
The clamping lever 15 is connected with the spindle 12 through a torsion spring 11. The groove on the upper surface of the cover plate 2 is an annular groove. Two groups of cylinders 6, U-shaped lifting lugs 10, torsion springs 11, rotating stoppers 14, clamping levers 15 and take-up copper plates 16 are symmetrically arranged at the center of the cover plate 2. The gaps 31 are fan-shaped gaps, and the number of the gaps is two. The upper part of the overflow pipe is provided with a connecting flange 8; and a sealing gasket 3 is arranged between the cover plate 2 and the tank opening 1.
The device is arranged on a tank opening 1 (not forming part of the device) in a mode of figure 1, a cover plate 2 presses the tank opening 1, a sealing gasket 3 is arranged between the cover plate 2 and the tank opening 1, an annular groove is formed in the upper surface of the cover plate 2, a gas collecting cylinder 4 is arranged in the groove, a gas outlet flange 13 is arranged on the side surface of the gas collecting cylinder 4 and used for connecting a gas recovery channel, a cylinder cover 7 is arranged above the gas collecting cylinder 4, two threaded holes which are symmetrically distributed are formed in the cover plate 2 and used for installing two same standard cylinders 6 respectively, a through hole is formed in the middle of the cover plate 2, and a flow passing pipe penetrates through the through hole.
As shown in fig. 2, two fan-shaped gaps 31 are further provided between the cover plate 2 and the outer circumferential surface of the flow-through pipe 5, and the air flow generated during loading is discharged to the air collecting cylinder 4 through the gaps.
As shown in fig. 1 and 3, a fan-shaped plate 51 is arranged at the contact position of the lower surface of the cover plate 2 of the overflow pipe 5, threads are arranged at the upper part of the overflow pipe 5, a round nut 9 arranged on the threads can press the cylinder cover 7, the cylinder cover 7 presses the gas collecting cylinder 4, the gas collecting cylinder 4 presses the cover plate 2, the fan-shaped plate 51 on the overflow pipe 5 supports the cover plate 2, and the overflow pipe 5, the cover plate 2, the gas collecting cylinder 4, the cylinder cover 7 and the round nut 9 are combined into a tight whole. The upper part of the overflow pipe 5 is provided with a connecting flange 8 which connects all the devices to the crane pipe of the loading arm.
As shown in fig. 1 and 4, a U-shaped lifting lug 10 is mounted on the lower surface of a piston rod of the air cylinder 6, a mandrel 12 is mounted in a hollow part of the U-shaped lifting lug 10, a rotation stop 14 and a clamping lever 15 are mounted on the mandrel 12 and can rotate on the mandrel 12, the clamping lever 15 assembly is connected with the mandrel 12 through a torsion spring 11, and the torsion spring 11 forces the clamping lever 15 assembly to rotate relatively around the mandrel 12. When the piston rod of the standard air cylinder 6 moves upwards to a certain position, the torsion spring 11 forces the rotating stopper 14 and the clamping lever 15 to rotate towards the horizontal position, and when the clamping lever 15 rotates to slightly exceed the horizontal position, the rotating stopper 14 contacts with the side surface of the U-shaped lifting lug 10, so that the clamping lever 15 and the rotating stopper 14 cannot rotate continuously. The piston rod of the cylinder 6 continues to move upwards, the clamping lever 15 is kept basically horizontal until the clamping lever is in contact with the lower end face of the tank opening 1 to bear force, and the two sides of the clamping lever 15 firmly clamp the whole connecting device on the tank opening 1. When the lower end face of the can opening 1 is uneven, the clamping lever 15 can rotate around the mandrel 12 to be adjusted, and the two ends of the lever 15 are guaranteed to be in reliable contact with the lower end face of the can opening 1 within a certain range.
As shown in fig. 1, 4 and 5, a take-up copper plate 16 is disposed on the lower surface of the cover plate 2, a groove 161 in the plumb direction is disposed in the middle of the take-up copper plate 16, when the clamping lever 15 is in a horizontal position, one side of the clamping lever 15 passes through the groove, when the piston rod of the cylinder 6 pushes the clamping lever assembly to move downward to a certain position, the lower surface of one side of the clamping lever 15 contacts with the bottom surface of the groove in the plumb direction, the piston rod of the cylinder 6 continues to push the clamping lever assembly to move downward, and the take-up copper plate 16 can force the clamping lever 15 to rotate to the plumb position, as shown in fig. 6.
The standard cylinder 6, the lifting lug 10, the torsion spring 11, the clamp rotating stop dog 14, the clamping lever 15 and the rod-retracting copper plate 16 of the device are all provided with two symmetrical groups.
As shown in fig. 6, in the unloaded state, the clamp lever 15 is restrained by the take-up copper plate 16 to be in the plumb position. When loading, the part below the cover plate 2 is inserted into the tank opening 1, the cylinder 6 is opened, the two piston rods move upwards to a certain position, the central line of the mandrel 12 is higher than the height of the bottom of the copper take-up rod plate 16, the rotating stop block 14 and the clamping lever 15 expand towards the horizontal direction under the action of the elasticity of the torsion spring, the piston rods continue to move upwards, and when the bottom surface of the clamping lever 15 exceeds the height of the bottom of the copper take-up rod plate 16, the two clamping levers 15 are completely unfolded to the horizontal position. The piston rod of the cylinder 6 continues to move upwards to drive the clamping lever 15 to move upwards, the clamping lever 15 basically keeps horizontal until the clamping lever contacts and is stressed with the lower end face of the tank opening 1, the cylinder 6 drives the two sides of the clamping lever 15 to firmly clamp the whole connecting device on the tank opening 1, and the loading and unloading arm is tightly connected with the tank opening 1. The liquid enters the lower vertical pipe through the flow pipe 5 and then enters the tank car; the generated volatile gas enters the gas collecting cylinder 4 through the fan-shaped gap 31 between the cover plate 2 and the outer circumferential surface of the flow-through pipe 5, and then is discharged into an external gas recovery channel.
After the clamping lever 15 is flattened, the clamping lever can continuously move upwards in a large range, and can load the tank mouths 1 with different depths; the device can also load the tank mouths 1 with different diameters, the distribution positions of the two groups of the take-up copper plates 16 determine the minimum diameter of the tank mouth 1 which can be loaded, and the length of the clamping lever 15 determines the maximum diameter of the tank mouth 1.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention.
Claims (1)
1. Loading arm and jar mouth connecting device, including apron (2), its characterized in that: the gas collecting cylinder (4) and the cylinder (6) are arranged on the cover plate (2), a gas outlet flange (13) is arranged on the side surface of the gas collecting cylinder (4), the gas outlet flange (13) is used for connecting a gas recovery channel, and a cylinder cover (7) is arranged above the gas collecting cylinder (4);
the upper surface of the cover plate (2) is provided with an annular groove, a gas collecting cylinder (4) is arranged in the groove, the cover plate (2) is provided with a threaded hole used for installing a cylinder (6), a through hole is formed in the middle of the cover plate, a flow-through pipe penetrates through the through hole, a gap (31) is formed between the cover plate and the outer circumferential surface of the flow-through pipe, and the gap (31) is connected with the gas collecting cylinder (4);
the lower surface of the cover plate (2) of the overflow pipe is provided with a sector plate (51), the upper part of the overflow pipe (5) is provided with an external thread, and a round nut (9) arranged on the external thread can press the cylinder cover (7);
the lower surface of a piston rod of the air cylinder (6) is provided with a U-shaped lifting lug (10), a mandrel (12) is arranged at the hollow part of the U-shaped lifting lug (10), a rotating stop block (14) and a clamping lever (15) are arranged on the mandrel (12), and the rotating stop block and the clamping lever can rotate around the mandrel together; a draw-in bar copper plate (16) is arranged on the lower surface of the cover plate (2), and a groove (161) in the plumb direction is formed in the middle of the draw-in bar copper plate (16) and used for drawing and releasing the clamping lever; the clamping lever (15) is connected with the mandrel (12) through a torsion spring (11); the groove on the upper surface of the cover plate (2) is an annular groove; the air cylinder (6), the U-shaped lifting lug (10), the torsion spring (11), the rotating stop block (14), the clamping lever (15) and the rod-retracting copper plate (16) are arranged in two groups in a manner of centrosymmetry of the cover plate (2); the gaps (31) are fan-shaped gaps, and the number of the gaps is two; the upper part of the overflow pipe is provided with a connecting flange (8); and a sealing gasket (3) is arranged between the cover plate (2) and the tank opening (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495413.5A CN107128867B (en) | 2017-06-26 | 2017-06-26 | Connecting device for loading arm and tank opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495413.5A CN107128867B (en) | 2017-06-26 | 2017-06-26 | Connecting device for loading arm and tank opening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107128867A CN107128867A (en) | 2017-09-05 |
| CN107128867B true CN107128867B (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710495413.5A Active CN107128867B (en) | 2017-06-26 | 2017-06-26 | Connecting device for loading arm and tank opening |
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| Country | Link |
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| CN (1) | CN107128867B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110872094A (en) * | 2018-09-03 | 2020-03-10 | 中国石油化工股份有限公司 | Crane tube for unloading tank car and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103662487A (en) * | 2013-12-28 | 2014-03-26 | 连云港天邦科技开发有限公司 | Truck top locking type oil-gas recovery and sealing device |
| CN203728565U (en) * | 2013-12-31 | 2014-07-23 | 中国石油化工股份有限公司 | Oil gas recycling cover |
| CN105692539A (en) * | 2016-03-18 | 2016-06-22 | 连云港佳普石化机械有限公司 | Sealing vertical tube for loading arm |
| CN206050597U (en) * | 2016-08-10 | 2017-03-29 | 连云港佳普石化机械有限公司 | For the interior buckle-type sealing device of tank car closed loading |
| CN206927601U (en) * | 2017-06-26 | 2018-01-26 | 连云港宏泽机械设备有限公司 | Loading arm and tank mouth attachment means |
-
2017
- 2017-06-26 CN CN201710495413.5A patent/CN107128867B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103662487A (en) * | 2013-12-28 | 2014-03-26 | 连云港天邦科技开发有限公司 | Truck top locking type oil-gas recovery and sealing device |
| CN203728565U (en) * | 2013-12-31 | 2014-07-23 | 中国石油化工股份有限公司 | Oil gas recycling cover |
| CN105692539A (en) * | 2016-03-18 | 2016-06-22 | 连云港佳普石化机械有限公司 | Sealing vertical tube for loading arm |
| CN206050597U (en) * | 2016-08-10 | 2017-03-29 | 连云港佳普石化机械有限公司 | For the interior buckle-type sealing device of tank car closed loading |
| CN206927601U (en) * | 2017-06-26 | 2018-01-26 | 连云港宏泽机械设备有限公司 | Loading arm and tank mouth attachment means |
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| CN107128867A (en) | 2017-09-05 |
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