Pressure vessel end socket sealing performance detection equipment

Abstract

The utility model relates to the field of sealing performance detection equipment, in particular to pressure vessel sealing head sealing performance detection equipment, which comprises a detection box, a sealing plate, an air cylinder, a pressing plate, a control module, an air pump and a water pump, according to the utility model, the three groups of cylinders are connected with the pressure sensors to respectively detect the three groups of end sockets, so that the detection period is effectively shortened, the requirements of mass production are met, the equipment can process more end sockets within a fixed time, the idle time of the equipment is reduced, and the overall detection efficiency is improved; the three groups of detection modes can provide multiple detection modes for a user to select, detection parameters are flexibly set according to specific requirements of the seal heads, the detection modes of different seal heads are met, meanwhile, the three groups of air cylinders independently operate and do not interfere with one another, when a single air cylinder goes wrong, detection of other stations cannot be affected, the downtime is shortened, and the working efficiency is improved. And stable operation of equipment is ensured.

Description

Technical Field

[0001] This utility model relates to the field of sealing performance testing equipment, and in particular to a sealing performance testing equipment for pressure vessel heads. Background Technology

[0002] Pressure vessel heads are an important component of pressure vessels, typically used to seal the ends of the vessel, serving to seal and withstand pressure. They are connected to the vessel body by welding or other methods to form a complete pressure vessel. The shape, size, and material selection of the head are crucial to the safety, reliability, and service life of the pressure vessel. When conducting a sealing test on a pressure vessel head, testing equipment is needed to check whether the pressure vessel head has good sealing performance. It is mainly used to verify whether the head can effectively prevent media leakage under design pressure and operating conditions, ensuring the safe operation of the pressure vessel.

[0003] Existing testing equipment typically requires batch testing of container heads. Since the equipment can only test individual container heads, it cannot meet the testing needs of large-scale production, increasing the time consumed in seal testing and reducing overall testing efficiency.

[0004] Therefore, the existing testing equipment can only test a single container head, which cannot meet the testing needs of large-scale production. This increases the time consumed in sealing testing and reduces the overall testing efficiency. A pressure vessel head sealing performance testing device can be developed, which is equipped with three sets of placement slots to place the heads and test the three sets of heads separately. This shortens the testing cycle, meets the needs of mass production, reduces equipment downtime, and improves the overall testing efficiency. Utility Model Content

[0005] To overcome the problem that existing testing equipment can only test a single container head, which cannot meet the testing needs of large-scale production, increases the time consumed in seal testing, and reduces the overall testing efficiency.

[0006] The technical solution of this utility model is as follows: a pressure vessel head sealing performance testing device, including a testing box, a sealing plate, a cylinder, a pressure plate, a control module, an air pump and a water pump. A sealing plate is provided on the top of the testing box. Three sets of cylinders are fixed on the upper end of the sealing plate. A hydraulic rod is installed at one end of the three sets of cylinders at the lower end of the sealing plate. A pressure plate is fixed at the end of the hydraulic rod away from the sealing plate. Several sets of balance rods are welded circumferentially on the upper end of the pressure plate. A support platform is installed inside the testing box. Three sets of placement slots corresponding to the pressure plate are opened inside the support platform. Two sets of partitions are welded to the lower end of the support platform. Through holes are opened inside the placement slots.

[0007] Preferably, the outer wall of the testing box is equipped with three sets of control modules. The three sets of control modules are electrically connected to the cylinder. One end of each set of control modules is equipped with a connecting wire. The connecting wire passes through the sealing plate and extends into the interior of the pressure plate. One end of the connecting wire is located at the lower end of the pressure plate and is fixedly installed with a pressure sensor.

[0008] Preferably, the outer side of the testing box is provided with multiple sets of support plates, and an air pump is installed at the upper end of each set of support plates. A transmission pipe is fixed to the outer end of the air pump, and one end of the transmission pipe extends through the pressure plate to the outside. Two sets of limit bolts are installed on the outer wall of each set of support plates.

[0009] Preferably, a sealing ring is fixed on the outer side of the placement groove at the upper end of the support platform, and a connecting groove for accommodating the sealing ring is opened inside the pressure plate.

[0010] Preferably, three sets of conveying pipes are installed at the outer end of the testing box below the support plate. The three sets of conveying pipes extend through the testing box into the interior. A docking plate is installed at one end of each of the three sets of conveying pipes, and a water pump is fixed at the outer end of the docking plate.

[0011] Preferably, a connecting column is welded at the upper corner of the test box, and a connecting hole for accommodating the connecting column is opened inside the sealing plate. The sealing plate is movably set along the outer wall of the connecting column.

[0012] Preferably, a connecting frame is symmetrically welded to the upper end of the sealing plate, and a sealing strip is fixed to the lower end of the sealing plate.

[0013] The beneficial effects of this utility model are:

[0014] Compared to traditional testing devices, this system uses three sets of cylinders connected to pressure sensors to test three sets of end caps, effectively shortening the testing cycle and meeting the needs of mass production. This allows the equipment to process more end caps within a fixed time, reducing downtime and improving overall testing efficiency. Furthermore, the three testing methods offer multiple testing modes for users to choose from, allowing for flexible parameter settings based on the specific requirements of each end cap. The three sets of cylinders operate independently without interference, ensuring that a problem with a single cylinder will not affect the testing of other stations, reducing downtime and guaranteeing stable equipment operation. Attached Figure Description

[0015] Figure 1 The diagram shown is a schematic representation of the overall structure of a pressure vessel head sealing performance testing device according to this utility model.

[0016] Figure 2 The diagram shown is a schematic diagram of the pressure plate structure of a pressure vessel head sealing performance testing device according to this utility model;

[0017] Figure 3The diagram shown is a schematic of the air pump structure of a pressure vessel head sealing performance testing device according to this utility model.

[0018] Figure 4 The diagram shown is a schematic diagram of the water pump structure of a pressure vessel head sealing performance testing device according to this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Detection box; 2. Sealing plate; 3. Cylinder; 4. Hydraulic rod; 5. Pressure plate; 6. Sealing ring; 7. Control module; 8. Pressure sensor; 9. Support plate; 10. Limit bolt; 11. Air pump; 12. Transmission pipe; 13. Conveying pipe; 14. Connecting plate; 15. Water pump; 16. Connecting column; 17. Connecting frame; 18. Sealing strip. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-4 This utility model provides an embodiment: a pressure vessel head sealing performance testing device, including a testing box 1, a sealing plate 2, a cylinder 3, a pressure plate 5, a control module 7, an air pump 11, and a water pump 15. The sealing plate 2 is provided above the testing box 1. Three sets of cylinders 3 are fixed to the upper end of the sealing plate 2. One end of the three sets of cylinders 3 is located at the lower end of the sealing plate 2 and a hydraulic rod 4 is installed thereon. The end of the hydraulic rod 4 away from the sealing plate 2 is fixed to the pressure plate 5. Several sets of balance rods are welded circumferentially to the upper end of the pressure plate 5. A support platform is installed inside the testing box 1. Three sets of placement slots corresponding to the pressure plate 5 are opened inside the support platform. Two sets of partitions are welded to the lower end of the support platform. Through holes are opened inside the placement slots.

[0022] Please see Figures 1-3 In this embodiment, three sets of control modules 7 are installed on the outer wall of the detection box 1. The three sets of control modules 7 are electrically connected to the cylinder 3. One end of each set of control modules 7 is connected to a connecting wire, which passes through the sealing plate 2 and extends into the interior of the pressure plate 5. One end of the connecting wire is fixedly installed with a pressure sensor 8 at the lower end of the pressure plate 5. By using the three sets of control modules 7 in combination with the pressure sensor 8 to independently detect the three sets of end caps, the pressure change of each end cap can be monitored in real time to ensure the accuracy of the detection data and adapt to various detection needs. Multiple sets of support plates 9 are provided on the outer side of the detection box 1. Air pumps 11 are installed on the upper end of each set of support plates 9. A transmission pipe 12 is fixed to the outer end of the air pump 11. One end of the transmission pipe 12 passes through the pressure plate 5 and extends to the outside. Two sets of limit bolts 10 are installed on the outer wall of each set of support plates 9. By using the air pump 11 in combination with the transmission pipe 12 to extract or transport gas during detection, rapid pressurization or depressurization can be achieved, significantly shortening the detection time and improving the detection efficiency.

[0023] Please see Figures 2-3In this embodiment, a sealing ring 6 is fixed on the outer side of the placement groove at the upper end of the support platform. A connecting groove for accommodating the sealing ring 6 is opened inside the pressure plate 5. By installing the sealing ring 6 at the end cap placement location and fitting it with the pressure plate 5, the tiny gaps at the end cap placement location are effectively filled, preventing gas or liquid leakage during the testing process and improving the reliability of the test. Three sets of conveying pipes 13 are installed at the outer end of the test box 1 below the support plate 9. The three sets of conveying pipes 13 extend through the test box 1 into the interior. A docking plate 14 is installed at one end of each of the three sets of conveying pipes 13. A water pump 15 is fixed at the outer end of the docking plate. By using the water pump 15 to transmit water flow into the test box 1, the water injection and pressure control inside the test box 1 are achieved, providing a stable test environment for the hydrostatic test of the end cap.

[0024] Please see Figures 2-4 In this embodiment, a connecting column 16 is welded at the upper corner of the test box 1, and a connecting hole for accommodating the connecting column 16 is opened inside the sealing plate 2. The sealing plate 2 is movably arranged along the outer wall of the connecting column 16. A connecting frame 17 is symmetrically welded to the upper end of the sealing plate 2, and a sealing strip 18 is fixed to the lower end of the sealing plate 2. By using the sealing strip 18 to assist the sealing plate 2 in fastening and sealing with the test box 1, the stability of the sealing environment during the test is ensured.

[0025] During operation, firstly, using a lifting device combined with a hook to attach the connecting frame 17, the sealing plate 2 is pulled up and opened from the top of the test box 1. After the sealing plate 2 is opened, the three sets of container heads to be tested for sealing are placed into the placement slot. After the container heads are stably placed inside the placement slot, the lifting device slowly lowers the sealing plate 2, allowing it to slide along the outer wall of the connecting column 16 and engage with the sealing strip 18 to seal the test box 1. After the sealing plate 2 is engaged, three sets of control modules 7 control three sets of cylinders 3 connected to hydraulic rods 4 to drive the pressure plate 5 down, so that the connecting groove inside the pressure plate 5 fits and seals the sealing ring 6, filling the tiny gaps where the heads are placed. Secondly, the partition divides the support platform into three independent test chambers. The air pump 11 is started and connected to the transmission pipe 12 to extract gas from the inside of each test chamber, achieving rapid pressurization. When the extracted gas reaches the preset value, the pressure is transmitted... Sensor 8 detects and records the current value. Next, water pump 15 controls the water flow and injects it into the test chamber through delivery pipe 13. When the injected water flow reaches the preset value, water pump 15 is turned off. Pressure sensor 8 detects the value inside the placement tank. After a period of time, pressure sensor 8 is used to detect the value inside the placement tank after water injection for the second time. When the value does not change, the container head is well sealed. If the value fed back by pressure sensor 8 is inconsistent with the value taken by the injected water, the container head is poorly sealed and there is air leakage. Three sets of cylinders 3 are connected to pressure sensor 8 to test three sets of heads respectively, which effectively shortens the test cycle and meets the needs of mass production. If a single cylinder 3 has a problem, the other cylinders 3 can perform a sealing test independently to ensure the stable operation of the equipment and realize the multi-group test of pressure vessel heads.

[0026] Through the above steps, by using three sets of cylinders 3 connected to pressure sensors 8 to detect three sets of end caps respectively, the detection cycle is effectively shortened, meeting the needs of mass production. This allows the equipment to process more end caps within a fixed time, reducing equipment downtime and improving overall detection efficiency. Furthermore, the three detection methods provide multiple detection modes for users to choose from, allowing for flexible setting of detection parameters according to the specific requirements of the end caps to meet the detection needs of different end caps. At the same time, the three sets of cylinders 3 operate independently without interference. When a single cylinder 3 malfunctions, it will not affect the detection of other stations, reducing downtime and ensuring stable operation of the equipment.

Claims

1. A pressure vessel head sealing performance testing device, comprising a testing chamber (1); characterized in that: It also includes a sealing plate (2), a cylinder (3), a pressure plate (5), a control module (7), an air pump (11), and a water pump (15). The sealing plate (2) is located above the test box (1). Three sets of cylinders (3) are fixed at the upper end of the sealing plate (2). One end of the three sets of cylinders (3) is located at the lower end of the sealing plate (2) and a hydraulic rod (4) is installed. The end of the hydraulic rod (4) away from the sealing plate (2) is fixed with a pressure plate (5). Several sets of balance rods are welded around the upper end of the pressure plate (5). A support platform is installed inside the test box (1). Three sets of placement slots corresponding to the pressure plate (5) are opened inside the support platform. Two sets of partitions are welded at the lower end of the support platform. Through holes are opened inside the placement slots.

2. The pressure vessel head sealing performance testing device according to claim 1, characterized in that: Three control modules (7) are installed on the outer wall of the detection box (1). The three control modules (7) are electrically connected to the cylinder (3). A connecting wire is installed at one end of the three control modules (7). The connecting wire passes through the sealing plate (2) and extends to the inside of the pressure plate (5). A pressure sensor (8) is fixedly installed at the lower end of the pressure plate (5).

3. The pressure vessel head sealing performance testing device according to claim 2, characterized in that: The outer side of the test box (1) is provided with multiple sets of support plates (9). Each set of support plates (9) is equipped with an air pump (11). The outer end of the air pump (11) is fixed with a transmission pipe (12). One end of the transmission pipe (12) passes through the pressure plate (5) and extends to the outside. Each set of support plates (9) is equipped with two sets of limit bolts (10).

4. The pressure vessel head sealing performance testing device according to claim 1, characterized in that: A sealing ring (6) is fixed on the outer side of the placement groove at the upper end of the support platform, and a connecting groove for accommodating the sealing ring (6) is opened inside the pressure plate (5).

5. The pressure vessel head sealing performance testing device according to claim 4, characterized in that: Three sets of conveying pipes (13) are installed at the outer end of the test box (1) below the support plate (9). The three sets of conveying pipes (13) extend through the test box (1) into the interior. A docking plate (14) is installed at one end of each of the three sets of conveying pipes (13). A water pump (15) is fixed at the outer end of the docking plate.

6. The pressure vessel head sealing performance testing device according to claim 1, characterized in that: A connecting column (16) is welded at the upper corner of the test box (1). The sealing plate (2) has a connecting hole for accommodating the connecting column (16) inside. The sealing plate (2) is movably arranged along the outer wall of the connecting column (16).

7. The pressure vessel head sealing performance testing device according to claim 1, characterized in that: A connecting frame (17) is symmetrically welded to the upper end of the sealing plate (2), and a sealing strip (18) is fixed to the lower end of the sealing plate (2).

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