Inner floating disc sealability detection pool

Abstract

The application discloses a kind of inner floating disc leak detection pool, including water storage pool, water supply pool is communicated in the bottom of water storage pool, water supply pool is communicated with water storage pool by water supply pipeline and backwater pipeline, water pump and control valve are installed on water supply pipeline and backwater pipeline;A plurality of annular steps for cooperating with inner floating disc are sequentially arranged from top to bottom in water storage pool, and the diameter of annular step sequentially decreases from top to bottom;Support frame is installed above water storage pool, vacuum chuck for taking and placing inner floating disc is installed on support frame, vacuum chuck is installed on support frame by lifting drive device, horizontal drive device for driving lifting drive device to move horizontally is also installed on support frame, limit switch I cooperating with horizontal drive device is installed on support frame directly above water storage pool.The application can realize the rapid detection of inner floating disc sealing in production process, and has the authenticity of working condition simulation and the efficiency of detection process.

Description

Technical Field

[0001] This utility model relates to the field of floating roof production and testing technology, and in particular to an internal floating roof sealing test tank. Background Technology

[0002] In industries such as petrochemicals and energy storage and transportation, internal floating roofs serve as key energy-saving and environmentally friendly devices within storage tanks. By adaptively floating with the liquid level to form a physical isolation layer, they can effectively reduce the evaporation loss of volatile liquids within the tank by more than 80%, and significantly suppress the risk of combustion and explosion caused by oil and gas accumulation, as well as the emission of toxic and harmful gases. However, their sealing performance, a core indicator determining the safety and environmental effectiveness of storage tanks, currently faces challenges in testing technology during the production of internal floating roofs.

[0003] Some testing solutions only involve static measurements of external dimensions, lacking performance verification of the sealing interface under actual working conditions such as dynamic liquid level fluctuations and changes in media pressure. As a result, approximately 12%-18% of products with potential micro-leakage issues pass factory testing. Other testing solutions, while introducing multi-parameter monitoring systems, rely on high-cost precision equipment and lengthy operating procedures (with a single testing cycle of 6-10 hours). This increases the quality inspection costs for enterprises by 20%-30% and limits production capacity due to low testing efficiency. This contradiction between "testing accuracy and efficiency" has become a technical bottleneck restricting the high-quality development of the industry. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an internal floating roof sealing test pool that can quickly detect the sealing performance of the internal floating roof during the production process, and has the advantages of realistic working condition simulation and high efficiency in the detection process, in order to overcome the shortcomings of the existing technology.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution. This utility model is an internal floating roof sealing test tank, including a water storage tank for testing the sealing performance of the internal floating roof. A water supply tank is connected to the bottom of the water storage tank, and the water supply tank is connected to the water storage tank through a water supply pipe and a return water pipe. A water pump and a control valve are installed on both the water supply pipe and the return water pipe. Several annular steps for cooperating with the internal floating roof are arranged sequentially from top to bottom in the water storage tank, with the diameter of the annular steps decreasing sequentially from top to bottom. A support frame is installed above the water storage tank, and a vacuum suction cup for picking up and placing the internal floating roof is installed on the support frame. The vacuum suction cup is mounted on the support frame via a lifting drive device. A horizontal drive device for driving the lifting drive device to move horizontally is also installed on the support frame. A limit switch I cooperating with the horizontal drive device is installed on the support frame directly above the water storage tank.

[0006] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the internal floating disk sealing test pool mentioned above, the lifting drive device is a drive cylinder, the drive cylinder is installed upside down at the drive end of the horizontal drive device, and the vacuum suction cup is installed at the piston rod end of the drive cylinder.

[0007] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the internal floating disk sealing test pool described above, the vacuum suction cup is installed at the drive end of the lifting drive device by a number of buffer springs.

[0008] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the internal floating disk sealing test pool mentioned above, the horizontal drive device is a ball screw pair. The screw shaft of the ball screw pair is mounted on the support frame through bearings and bearing seats. The lifting drive device is mounted on the nut of the ball screw pair. A servo motor for driving the screw shaft to rotate and causing the nut to move horizontally is installed on the support frame.

[0009] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the internal floating disk sealing test pool described above, a guide slider is also installed on the nut of the ball screw pair, and a guide groove that cooperates with the guide slider is provided on the support frame.

[0010] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the above-mentioned internal floating disk sealing test pool, limit switches II and III for cooperating with the horizontal drive device are also installed on both sides of the support frame.

[0011] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the internal floating disk sealing test pool described above, the annular steps are provided with 2-3 steps.

[0012] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the internal floating plate sealing test pool mentioned above, the water storage pool is a cylindrical device and the water supply pool is a cuboid.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. Realism of working condition simulation: By setting an annular step with the diameter decreasing from top to bottom, the sealing environment of the inner floating board under different diameter working conditions can be simulated, making the test results closer to the actual use scenario and effectively improving the accuracy and reliability of the test.

[0015] 2. High efficiency of the testing process: The vacuum suction cup enables the rapid placement and removal of the inner floating plate. Combined with the lifting and horizontal driving devices, the position of the inner floating plate can be flexibly adjusted to quickly complete the testing preparation work. At the same time, the water supply tank and the water storage tank are connected by water supply pipes and return pipes, and water pumps and control valves are installed on the pipes to facilitate rapid adjustment of water level and circulating water flow, further shortening the testing time and improving testing efficiency.

[0016] 3. Ease of operation and automation: The combined use of vacuum suction cup, lifting drive device, horizontal drive device and limit switch I realizes the automated control of the internal floating plate picking, placement, position adjustment and detection process, reduces manual intervention, reduces labor intensity and improves the ease of operation and safety.

[0017] 4. Structural rationality and multifunctionality: The overall structure of the testing pool is rationally designed, and all components work together to meet the requirements of internal floating roof sealing test, while also having a certain degree of flexibility and expandability. It can be appropriately adjusted and optimized according to actual needs to adapt to the testing of internal floating roofs of different specifications and types. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the vacuum suction cup of this utility model;

[0020] Figure 3 This is a diagram showing one usage state of the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Reference Figure 1-3 An internal floating roof sealing performance testing tank is designed to simulate the actual usage environment of the internal floating roof, achieving efficient and accurate testing of its sealing performance while ensuring the reliability and authenticity of the test results. Specifically:

[0023] The testing pool includes a water storage tank 1 for testing the sealing performance of the internal floating roof. Its dimensions are designed according to actual testing requirements to ensure it can accommodate the internal floating roof and provide sufficient testing space. A water supply tank 2 is connected to the bottom of the water storage tank 1. Its dimensions are designed according to the water consumption and circulation requirements of the water storage tank 1 to ensure a stable water source. The water supply tank 2 is connected to the water storage tank 1 via a water supply pipe 3 and a return water pipe 4 to form a closed water circulation system. Water pumps and control valves are installed on both the water supply pipe 3 and the return water pipe 4. By controlling the start and stop of the water pumps and the opening of the control valves, the flow rate and pressure of the water can be adjusted to meet the needs of different testing conditions. Preferably, the water storage tank 1 is cylindrical, which facilitates the uniform distribution of water flow and the stable placement of the internal floating roof. The water supply tank 2 is cuboid, which is convenient for manufacturing and installation, and also facilitates water storage and transportation.

[0024] To accommodate the testing of internal floating roofs of different diameters, several annular steps 5 are arranged sequentially from top to bottom in the water storage tank 1 to cooperate with the internal floating roofs. The diameter of the annular steps 5 decreases sequentially from top to bottom, so that different annular steps 5 can cooperate with internal floating roofs of different diameters to achieve the testing of their sealing performance. Preferably, there are 2-3 annular steps 5, and the specific diameter is determined according to the actual situation.

[0025] To facilitate the retrieval, placement, and movement of the inner floating disk, a support frame 17 is installed above the water storage tank 1. A vacuum suction cup 6 for retrieval and placement of the inner floating disk is mounted on the support frame 17. By generating negative pressure, the inner floating disk is adsorbed onto the vacuum suction cup 6, achieving stable gripping and release. Preferably, the vacuum suction cup 6 is mounted on the drive end of the lifting drive device 8 via several buffer springs 7. The buffer springs 7 act as a buffer during the retrieval and placement of the inner floating disk, preventing damage due to excessive impact force. Simultaneously, the buffer springs 7 can adapt to uneven surfaces of the inner floating disk, ensuring good contact between the vacuum suction cup 6 and the inner floating disk, and improving the reliability of the adsorption.

[0026] The vacuum suction cup 6 is mounted on the support frame 17 via a lifting drive device 8, which facilitates the rapid and accurate lifting movement of the vacuum suction cup 6. Preferably, the lifting drive device 8 is a drive cylinder, which is inverted and mounted on the drive end of the horizontal drive device. The vacuum suction cup 6 is mounted on the piston rod end of the drive cylinder. The drive cylinder has the advantages of simple structure, rapid action, and convenient control.

[0027] A horizontal drive device for driving the lifting drive device 8 to move laterally is also installed on the support frame 17. Preferably, the horizontal drive device is a ball screw pair. The lead screw shaft 9 of the ball screw pair is installed on the support frame 17 through bearings and bearing seats. The lifting drive device 8 is installed on the nut 10 of the ball screw pair. A servo motor 11 for driving the lead screw shaft 9 to rotate and drive the nut 10 to move laterally is installed on the support frame 17. The servo motor 11 is connected to the lead screw shaft 9 through a coupling, converting the rotational motion of the motor into the rotational motion of the lead screw shaft 9, thereby driving the nut 10, the lifting drive device 8 installed on the nut 10, and the vacuum suction cup 6 to move horizontally. In order to ensure that the nut 10 maintains linear motion during horizontal movement and improve the accuracy and stability of horizontal movement, a guide slider 12 is also installed on the nut 10 of the ball screw pair. A guide groove 13 that cooperates with the guide slider 12 is provided on the support frame 17.

[0028] In practice, to ensure that the inner floating roof can be accurately inserted into the water storage tank 1, a limit switch I14 that cooperates with the horizontal drive device is installed on the support frame 17 directly above the water storage tank 1. To ensure that the vacuum suction cup 6 can accurately reach the pick-up and drop position of the inner floating roof, limit switches II15 and III16 that cooperate with the horizontal drive device are also installed on both sides of the support frame 17. Preferably, limit switches I14, II15 and III16 are all photoelectric limit switches.

[0029] The actual testing process for the internal floating roof sealing performance testing tank provided in this application is as follows:

[0030] First, the vacuum suction cup 6 is moved to the storage position of the inner floating disk by the horizontal drive device and the lifting drive device 8, and the inner floating disk is picked up by the vacuum suction cup 6.

[0031] Then, the inner floating plate is moved to the top of the water storage tank 1 by the horizontal drive device, and then the inner floating plate is placed into the water storage tank 1 by the lifting drive device 8. Specifically, the sealing test can be carried out on the annular step 5 with the corresponding diameter of the inner floating plate.

[0032] During the testing process, the water level and flow rate in the water storage tank 1 are adjusted by the water pump and control valve on the water inlet pipe so that the water level in the water storage tank 1 reaches the position of the inner floating plate and moves the inner floating plate upward a certain distance to simulate the actual working conditions. Then, it is manually observed (an external elevator can be used to raise the height for easy observation) whether there are air bubbles at the connection between the inner floating plate and the water storage tank 1. If no air bubbles are generated, it means that the sealing is qualified; otherwise, it is unqualified.

[0033] After the test is completed, the inner floating plate is removed from the water storage tank 1 by the lifting drive device 8 and the horizontal drive device and returned to the storage position.

Claims

1. A test tank for the sealing performance of an internal floating roof, characterized in that: The system includes a water storage tank for testing the sealing performance of the internal floating roof. A water supply tank is connected to the bottom of the water storage tank, which is connected to the water storage tank via supply and return water pipes. Water pumps and control valves are installed on both the supply and return water pipes. Several annular steps, arranged sequentially from top to bottom, are designed to cooperate with the internal floating roof within the water storage tank. The diameter of the annular steps decreases sequentially from top to bottom. A support frame is installed above the water storage tank. A vacuum suction cup for lifting and lowering the internal floating roof is mounted on the support frame. The vacuum suction cup is mounted on the support frame via a lifting drive device. A horizontal drive device for driving the lifting drive device to move laterally is also installed on the support frame. A limit switch I, cooperating with the horizontal drive device, is installed on the support frame directly above the water storage tank.

2. The internal floating roof sealing test tank according to claim 1, characterized in that: The lifting drive device is a drive cylinder, which is installed upside down at the drive end of the horizontal drive device, and a vacuum suction cup is installed at the piston rod end of the drive cylinder.

3. The internal floating disc sealing performance testing tank according to claim 1 or 2, characterized in that: The vacuum suction cup is mounted on the drive end of the lifting drive device via several buffer springs.

4. The internal floating roof sealing test tank according to claim 1, characterized in that: The horizontal drive device is a ball screw pair. The screw shaft of the ball screw pair is mounted on the support frame through bearings and bearing seats. The lifting drive device is mounted on the nut of the ball screw pair. A servo motor for driving the screw shaft to rotate and causing the nut to move horizontally is mounted on the support frame.

5. The internal floating roof sealing test tank according to claim 4, characterized in that: A guide slider is also installed on the nut of the ball screw assembly, and a guide groove that mates with the guide slider is provided on the support frame.

6. The internal floating roof sealing performance testing tank according to claim 1 or 4, characterized in that: Limit switches II and III are also installed on both sides of the support frame for use with the horizontal drive device.

7. The internal floating roof sealing test tank according to claim 1, characterized in that: The circular staircase has 2-3 sections.

8. The internal floating roof sealing test tank according to claim 1, characterized in that: The water storage tank is cylindrical, and the water supply tank is rectangular.

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