Efficient gas pressurization and pressure stabilizing tank for safety valve testing platform
By using a flip-up carrier structure design with a flip-up frame and support structure, the safety valve calibration bench equipment can be flexibly transferred and stably operated in mobile calibration operations. This solves the problem of insufficient portability of existing equipment and improves the convenience and efficiency of equipment calibration in multiple locations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN LINXIN ENGINEERING INSPECTION CO LTD
- Filing Date
- 2025-10-14
- Publication Date
- 2026-07-21
Smart Images
Figure CN224528719U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety valve testing technology, specifically to a high-efficiency gas pressurization and stabilization tank for a safety valve testing bench. Background Technology
[0002] In industrial production systems, safety valves are core safety accessories for pressure equipment. Their performance directly determines the operational safety of the pressure system. If a safety valve fails, it may cause the pressure equipment to operate under overpressure, leading to major safety accidents such as leaks and explosions. Therefore, regular calibration of safety valves is a mandatory requirement to ensure industrial production safety. The testing of core parameters such as the opening pressure and sealing performance of safety valves must be completed using a calibration bench. The calibration bench needs to simulate the actual working conditions of the safety valve to determine its performance indicators. During the calibration process, the calibration bench requires a stable supply of high-pressure gas to operate normally.
[0003] According to the authorization announcement number (CN219935277U), a pressurizer for a cryogenic safety valve testing bench includes a pressurizing tank with a piston and a transmission assembly inside. A pair of opposing U-shaped rods are fixedly installed inside the pressurizing tank, and a reel is fixedly installed at the center of each U-shaped rod. In practical operation, with the help of the transmission assembly installed inside the pressurizing tank, even without an external high-pressure gas supply, the transmission assembly can be manually driven to drive the reel and the rotating frame, thereby lifting the piston and pressurizing the gas inside the pressurizing tank.
[0004] The structure disclosed in this patent has defects in practical applications, specifically as follows: if the pressure tank is designed to be too large, it will directly lead to insufficient portability of the equipment. In mobile calibration operation scenarios, when workers transfer the equipment across sites, they will have to bear a high physical load, and the difficulty of a single person to complete the handling operation will be greatly increased. Even in conventional industrial environments with well-organized equipment layout and ample operating space, it is difficult to achieve flexible turnover of the equipment and cannot quickly respond to the needs of continuous calibration operations at multiple locations. Ultimately, this will significantly reduce the ease of use of the equipment in mobile calibration scenarios. Utility Model Content
[0005] The purpose of this utility model is to provide a high-efficiency gas pressurization and stabilization tank for a safety valve calibration bench. It addresses the problems of high physical load and poor turnover flexibility when workers transfer pressurization tanks across sites in the prior art, which makes it difficult to adapt to the efficient implementation of mobile calibration operations. It proposes a solution that can reduce the physical load of workers when transferring tanks across sites and ensure that mobile calibration operations can be carried out flexibly and efficiently.
[0006] This utility model is achieved through the following technical solution:
[0007] A high-efficiency gas pressurization and stabilization tank for a safety valve calibration bench includes: a tilting frame; at least two movable rollers, each rotatably mounted on one side of the tilting frame; a load-bearing cantilever mounted on the tilting frame; a ground support arm mounted on the tilting frame, with a preset distance between the ground support arm and the load-bearing cantilever; a positioning cylinder mounted on the load-bearing cantilever; and a tank body installed inside the positioning cylinder. In operation, the tilting frame tilts to a vertical position, with the ground support arm resting against the ground for support. In repositioning, the tilting frame tilts to a horizontal position, with the movable rollers resting against the ground for rolling contact.
[0008] Furthermore, in this utility model, the two sides of the aforementioned ground support arm are respectively rotatably equipped with flipping rollers; wherein, during the process of the flipping frame switching between the working state and the displacement state, the flipping rollers can fit with the ground to form a rolling cooperation.
[0009] Furthermore, in this utility model, the rolling surface of the aforementioned flipping roller is coplanar with the bottom end face of the ground support arm; wherein, in the working state, the bottom end face of the ground support arm is in contact with the ground to form support, and the flipping roller is disengaged from the ground and rolls without contact.
[0010] Furthermore, in this utility model, the aforementioned tilting frame includes two parallel and oppositely arranged columns, with multiple crossbeams connecting the two columns to form a frame structure; the ground support arm includes a transverse frame section, with lifting guide rods connected to both sides of the transverse frame section, and the two lifting guide rods are distributed one-to-one with the two columns; the lifting guide rods slide through the inner side of the corresponding columns, and the lifting guide rods can be locked to a preset position inside the column; wherein, in the working state, the lifting guide rods are locked to a first preset position inside the column, and the transverse frame section is in contact with the load-bearing cantilever; in the displacement state, the lifting guide rods are locked to a second preset position inside the column, and a preset distance is formed between the transverse frame section and the load-bearing cantilever.
[0011] Furthermore, in this utility model, at least one column is provided with a first locking hole and a second locking hole in sequence; the corresponding lifting guide rod is provided with an assembly channel, and a locking component is installed in the assembly channel; wherein, in the working state, the lifting guide rod slides to a first preset position inside the column, and the locking component and the first locking hole form a locking engagement; in the displacement state, the lifting guide rod slides to a second preset position inside the column, and the locking component and the second locking hole form a locking engagement.
[0012] Furthermore, in this utility model, the locking component includes: a locking bolt, which is at least partially slidably disposed inside the assembly channel; and an elastic member, which is disposed inside the assembly channel, with one end of the elastic member connected to the locking bolt and the other end of the elastic member connected to the inner wall of the assembly channel; wherein, in its natural state, the locking bolt can be embedded in the first locking hole or the second locking hole.
[0013] Furthermore, in this invention, a push rod is rotatably mounted on the end of the aforementioned tilting frame away from the ground support arm.
[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0015] 1. This utility model effectively solves the problems of high physical load and difficult operation when transferring pressurized tanks across sites by switching between two postures of the flipping carrier. It avoids direct manual handling or large lifting, improves the transfer flexibility of the equipment in mobile calibration scenarios, and eliminates the situation of low turnover efficiency and difficulty in responding to continuous calibration at multiple locations due to inconvenient handling.
[0016] 2. The load transfer design of the transverse frame section and the load-bearing cantilever in this utility model, which is closely fitted, effectively solves the problem of structural overload deformation during operation of existing equipment, avoids the load-bearing cantilever bearing the load alone or the lifting guide rod deforming under stress, and improves the overall stability of the equipment in operation. In addition, combined with the adjustable characteristics of the distance between the transverse frame section and the load-bearing cantilever, it effectively solves the problem of lack of suitable operating space when loading and transporting the equipment. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0018] Figure 1 This is a schematic diagram of a high-efficiency gas pressurization and stabilization tank for a safety valve calibration bench in a displaced state.
[0019] Figure 2 This is a schematic diagram of a high-efficiency gas pressurization and stabilization tank for a safety valve calibration bench in operation.
[0020] Figure 3 for Figure 2 A cross-sectional view along the AA' direction;
[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0022] The attached diagram shows the markings and corresponding component names:
[0023] 1-Tilting frame, 2-Column, 3-Beam, 4-Positioning cylinder, 5-Tank body, 6-Moving roller, 7-Bearing cantilever, 8-Landing support arm, 9-Horizontal frame section, 10-Lifting guide rod, 11-Tilting roller, 12-Push rod, 13-Assembly channel, 14-Elastic element, 15-Locking bolt, 16-First locking hole, 17-Second locking hole. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0025] Example
[0026] Please refer to Figure 1 and Figure 2 This utility model provides a high-efficiency gas pressurization and stabilization tank for a safety valve calibration bench. Before the safety valve calibration operation, the equipment is transported over a long distance by a transport vehicle. After arriving at the periphery of the testing area, the operator unloads the equipment from the transport vehicle and adjusts the tilting frame 1 to a horizontal position. This allows the movable rollers 6 mounted on both sides of the tilting frame 1 to roll against the ground, pushing the entire equipment to the designated testing position. After the equipment is in place, the tilting frame 1 is tilted to a vertical position. At this time, the movable rollers 6 are lifted off the ground, and the ground support arm 8 is in contact with the ground to form a support structure. At the same time, the positioning cylinder 4 installed on the bearing cantilever 7 remains vertical, and the tank 5 assembled inside the positioning cylinder 4 is also in a vertical position, preparing for subsequent calibration operations.
[0027] During the calibration phase, the air inlet of tank 5 is sealed to the output of the booster pump via a sealed pipeline, and the air outlet of tank 5 is sealed to the air inlet of the calibration bench. The safety valve to be calibrated is connected to the air outlet of the calibration bench via a matching sealing interface, ensuring no gas leakage at any connection point. The booster pump delivers gas into tank 5 according to a preset program to increase the air pressure inside the tank. The air pressure sensor inside tank 5 collects the air pressure data in real time and transmits the data signal to the control center. The control center compares and analyzes the received real-time air pressure data with the preset stable pressure range, and dynamically adjusts the working state of the booster pump through closed-loop control logic to ensure that the air pressure inside tank 5 is always maintained within the preset stable range, providing a continuous and stable air pressure source for the safety valve calibration.
[0028] After the safety valve calibration is completed, the operator first adjusts the tilting frame 1 from a vertical position to a horizontal position, so that the moving roller 6 is in contact with the ground again. The operator then moves the entire equipment to the side of the transport vehicle, tilts the tilting frame 1 back to a vertical position, and operates the forklift so that the forklift forks are aligned and inserted into the preset distance between the ground support arm 8 and the load-bearing cantilever arm 7. The lifting action of the forklift forks raises the entire equipment, so that the equipment can be safely loaded onto the transport vehicle, completing the equipment recovery and subsequent transfer.
[0029] It should be noted that the positioning cylinder 4 has several perforated structures on its wall. These perforated structures can create air circulation channels, allowing natural ventilation to quickly remove the heat accumulated on the surface of the tank 5 during operation, effectively controlling the operating temperature of the tank 5. The inner wall of the positioning cylinder 4 is also fitted with an elastic buffer layer, which can buffer the impact force of collision between the tank 5 and the inner wall of the positioning cylinder 4 during equipment transportation, preventing direct impact damage to the tank 5 due to bumps. At the same time, the positioning cylinder 4 is equipped with strap-type components, which restrain the tank 5 within the positioning cylinder 4, effectively limiting the displacement of the tank 5 during equipment posture adjustments (such as the flipping of the tilting frame 1) or movement, preventing the tank 5 from shaking.
[0030] Please refer to Figure 1 and Figure 2 In some embodiments of this application, the tilting roller 11 provides auxiliary support and rolling guidance for the attitude transition of the tilting frame 1. When the operator drives the tilting frame 1 to switch between the working state and the displacement state, the tilting roller 11 can first contact the ground to form a temporary support fulcrum. At the same time, by utilizing its own rotatable characteristics, it converts the sliding friction between the tilting frame 1 and the ground during the attitude adjustment process into rolling friction, which significantly reduces the resistance when the tilting frame 1 is tilted, ensuring that the tilting frame 1 can complete the attitude transition from the working state to the displacement state (or vice versa) more effortlessly, and improving the ease of operation and the stability of the equipment attitude adjustment.
[0031] For example, when the tilting frame 1 is in operation, the bottom end face of the ground support arm 8 is fully in contact with the ground to form a support structure. At this time, since the rolling surface of the tilting roller 11 is coplanar with the bottom end face of the ground support arm 8, the tilting roller 11 is simultaneously disengaged from the ground along with the support posture of the ground support arm 8, ensuring that the ground support arm 8 achieves gapless support through the bottom end face and avoiding interference of the tilting roller 11 with the support.
[0032] When the operator drives the tilting frame 1 to switch between working and shifting states, the tilting roller 11 contacts the ground before the bottom end face of the landing support arm 8, thereby converting the sliding friction of the tilting frame 1 during the tilting process into rolling friction, significantly reducing the resistance to attitude adjustment, and improving the labor-saving and efficiency of the tilting frame 1 tilting operation.
[0033] Please refer to Figure 3 and Figure 4 In some embodiments of this application, the tilting frame 1 includes two parallel and oppositely arranged columns 2, which are fixedly connected by multiple crossbeams 3 to form the main body of the tilting frame 1. The ground support arm 8 consists of a transverse frame section 9 and two lifting guide rods 10. The two sides of the transverse frame section 9 are fixedly connected to the lifting guide rods 10 respectively. The two lifting guide rods 10 are distributed in a one-to-one correspondence with the two columns 2. The lifting guide rods 10 can slide through the inner cavity of the corresponding column 2 and can be locked in a preset position inside the column 2. This allows for flexible adjustment of the distance between the transverse frame section 9 and the load-bearing cantilever 7 to adapt to the needs of different working states of the equipment.
[0034] When the tilting frame 1 is in operation, the lifting guide rod 10 is locked in the first preset position inside the column 2. At this time, the transverse frame section 9 and the bearing cantilever 7 form a tightly fitted structural relationship. When bearing the tank 5, the lifting guide rod 10 is prevented from deforming due to bearing a concentrated load alone. On the other hand, the force on the bearing cantilever 7 is directly and evenly transmitted to the ground through the transverse frame section 9, effectively avoiding the risk of deformation caused by the bearing cantilever 7 being overloaded due to bearing a single force, and ensuring the load-bearing stability and structural reliability of the equipment during operation.
[0035] When the tilting frame 1 is in the displacement state, the lifting guide rod 10 is locked in the second preset position inside the column 2, so that a preset distance is formed between the transverse frame section 9 and the load-bearing cantilever 7. The distance provides the necessary operating space for loading and transporting the equipment. The operator can directly control the forklift forks to extend into the distance between the transverse frame section 9 and the load-bearing cantilever 7. The forklift lifts the entire equipment, which greatly improves the convenience and efficiency of the equipment relocation operation, while avoiding collision damage during the transfer process.
[0036] Please refer to Figure 4 At least one column 2 has a first locking hole 16 and a second locking hole 17 sequentially opened along its height direction. Two lifting guide rods 10 can synchronously move up and down along the inner cavity of the corresponding column 2 to ensure that the transverse frame section 9 always maintains a horizontal posture. When the tilting frame 1 is switched to the working state, the two lifting guide rods 10 slide synchronously along the inner side of the column 2 to the first preset position. At this time, the locking component on the lifting guide rod 10 moves to the position corresponding to the first locking hole 16. The locking component and the first locking hole 16 form a rigid locking engagement, limiting the lifting guide rod 10 to the first preset position, thereby making the transverse frame section 9 and the bearing cantilever 7 fit tightly together.
[0037] When the tilting frame 1 is switched to the displacement state, the two lifting guide rods 10 slide synchronously along the inner side of the column 2 to the second preset position, and the locking component moves synchronously to the position corresponding to the second locking hole 17, and forms a rigid locking engagement with the second locking hole 17 again, limiting the lifting guide rods 10 to the second preset position, ensuring that a preset distance is formed between the transverse frame section 9 and the bearing cantilever 7.
[0038] Please refer to Figure 4 Specifically, the locking assembly includes a locking bolt 15 and an elastic element 14. The locking bolt 15 and the mounting channel 13 form a sliding guide fit. The elastic element 14 (spring) is built into the mounting channel 13. One end of the elastic element 14 is rigidly connected to the inner end of the locking bolt 15, and the other end is fixedly connected to the inner wall of the mounting channel 13. In its natural state, the elastic element 14 always applies an outward elastic preload to the locking bolt 15, causing the outer end of the locking bolt 15 to extend out of the mounting channel 13 and be embedded in the first locking hole 16 or the second locking hole 17 at the corresponding position of the column 2, thereby achieving rigid locking between the lifting guide rod 10 and the column 2.
[0039] When the position of the lifting guide rod 10 needs to be adjusted to switch the equipment status, the operator presses the locking bolt 15 into the inner side of the assembly channel 13, so that it overcomes the pre-tightening force of the elastic element 14 and retracts into the assembly channel 13. This releases the locking engagement with the current lock hole (first lock hole 16 or second lock hole 17), driving the lifting guide rod 10 to slide along the inner side of the column 2 to the target preset position. The locking bolt 15 then corresponds to another lock hole (second lock hole 17 or first lock hole 16). The elastic element 14 releases the pre-tightening force, pushing the outer end of the locking bolt 15 out and into the lock hole, thus completing the relocking of the lifting guide rod 10 and the column 2.
[0040] Please refer to Figure 1 and Figure 2 In some embodiments of this application, the push rod 12 can be adjusted in multiple angles around the pivot point. When the equipment is in a displacement state, the push rod 12 can be rotated to a position where force can be applied, and the operator can move the entire equipment by holding the push rod 12 and applying pushing force. When the equipment is switched to the working state, the push rod 12 can be flipped downwards and attached to the surface of the flipping frame 1. The retractable design avoids forming a protruding structure, thereby preventing interference with the verification process or the movement of other parts of the equipment, ensuring the effectiveness of the working space and the safety of the operation process.
[0041] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A high-efficiency gas pressurization and stabilization tank for a safety valve testing bench, characterized in that, include: Tilting the carrier (1); At least two movable rollers (6) are respectively rotatably mounted on both sides of the tilting frame (1); A load-bearing cantilever (7) is mounted on the tilting frame (1); A ground support arm (8) is installed on the flipping frame (1), and a preset distance can be formed between the ground support arm (8) and the bearing cantilever (7); Positioning cylinder (4), which is mounted on the bearing cantilever (7); Tank body (5), the tank body (5) is installed inside the positioning cylinder (4); In operation, the flipping frame (1) flips to a vertical position, and the ground support arm (8) is in contact with the ground to form support. In the shifted state, the flipping carrier (1) flips to a horizontal position, and the moving roller (6) is in contact with the ground to form a rolling engagement.
2. The high-efficiency gas pressurization and stabilization tank for the safety valve calibration bench according to claim 1, characterized in that, The two sides of the ground support arm (8) are respectively equipped with rotating rollers (11); During the process of switching between the working state and the displacement state, the flipping roller (11) can be in contact with the ground to form a rolling fit.
3. The high-efficiency gas pressurization and stabilization tank for the safety valve calibration bench according to claim 2, characterized in that, The rolling surface of the flipping roller (11) is coplanar with the bottom end face of the ground support arm (8); In the working state, the bottom end face of the ground support arm (8) is in contact with the ground to form support, and the flipping roller (11) is disengaged from the ground and rolls.
4. The high-efficiency gas pressurization and stabilization tank for the safety valve calibration bench according to claim 3, characterized in that, The flipping frame (1) includes two parallel and opposite columns (2), and multiple crossbeams (3) are connected between the two columns (2) to form a frame structure; The ground support arm (8) includes a horizontal frame section (9), and lifting guide rods (10) are connected to both sides of the horizontal frame section (9). The two lifting guide rods (10) are distributed one-to-one with the two columns (2). The lifting guide rod (10) is slidably inserted through the inner side of the corresponding column (2), and the lifting guide rod (10) can be locked to a preset position inside the column (2); In the working state, the lifting guide rod (10) is locked in the first preset position inside the column (2), and the transverse frame section (9) is in contact with the bearing cantilever (7); In the displaced state, the lifting guide rod (10) is locked in the second preset position inside the column (2), and a preset distance is formed between the transverse frame section (9) and the bearing cantilever (7).
5. The high-efficiency gas pressurization and stabilization tank for the safety valve calibration bench according to claim 4, characterized in that, At least one of the columns (2) is provided with a first lock hole (16) and a second lock hole (17) in sequence; The corresponding lifting guide rod (10) is provided with an assembly groove (13), and a locking component is installed in the assembly groove (13); In the working state, the lifting guide rod (10) slides to the first preset position inside the column (2), and the locking component forms a locking engagement with the first lock hole (16); In the shifted state, the lifting guide rod (10) slides to the second preset position inside the column (2), and the locking component forms a locking engagement with the second lock hole (17).
6. The high-efficiency gas pressurization and stabilization tank for the safety valve calibration bench according to claim 5, characterized in that, The locking component includes: A locking pin (15) is at least partially slidably disposed inside the assembly channel (13); An elastic element (14) is disposed in the assembly channel (13), one end of the elastic element (14) is connected to the locking bolt (15), and the other end of the elastic element (14) is connected to the inner wall of the assembly channel (13). In its natural state, the elastic element (14) allows the locking bolt (15) to be inserted into either the first locking hole (16) or the second locking hole (17).
7. The high-efficiency gas pressurization and stabilization tank for a safety valve testing bench according to any one of claims 1 to 6, characterized in that, A push rod (12) is rotatably mounted on the end of the tilting frame (1) away from the ground support arm (8).