A pressure regulating device for a storage tank
By combining a piston mechanism, an adjustment mechanism, a threaded mechanism, and a pressure relief mechanism, the problem of poor applicability of traditional storage tank pressure regulating devices in explosion-proof scenarios and the potential safety hazards caused by human operation is solved. Automatic adjustment and real-time monitoring of the pressure inside the storage tank are achieved, ensuring pressure stability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGZHOU JINBEI CHEM CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional storage tank pressure regulating devices are poorly suited for explosion-proof or power-free environments, and their reliance on manual operation can easily lead to safety hazards. They also cannot achieve precise pressure regulation and real-time monitoring.
The system employs a combination of piston mechanism, adjustment mechanism, screw mechanism, monitoring mechanism, and pressure relief mechanism to achieve automatic adjustment and real-time monitoring of gas pressure inside the storage tank through mechanical structure. This includes the coordinated work of piston plate, piston rod, slide plate, screw, spring, nut, lead screw, gear, dial, and pressure relief cylinder, enabling flexible setting and intuitive display of pressure thresholds.
It enables automatic adjustment and real-time monitoring of the pressure inside the storage tank, avoiding safety accidents caused by excessive pressure, ensuring that the pressure inside the storage tank remains stable within the set range, and improving safety and ease of operation.
Smart Images
Figure CN224534045U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of storage tank technology, and in particular to a storage tank pressure regulating device. Background Technology
[0002] In industries such as chemical and energy, storage tanks are commonly used to store high-pressure gases, liquefied petroleum gas, and other media. Their internal pressure is easily affected by factors such as ambient temperature and the amount of gas filled. Excessive pressure can lead to tank rupture, media leakage, and potentially explosions or poisoning accidents; conversely, insufficient pressure can affect media transport efficiency and even cause media contamination due to air infiltration. Therefore, precise regulation and real-time monitoring of storage tank pressure are crucial for ensuring production safety.
[0003] In practical use, it has been found that traditional pressure regulating devices mostly rely on electronic valves or manual operation, which has obvious limitations: electronic valves require electric drive, making them unsuitable for explosion-proof or power-free scenarios, and the signal delay between sensors and actuators may lead to regulation lag; manual regulation relies on the operator's experience, and pressure monitoring requires frequent checks of the pressure gauge, which is not only inefficient but also prone to safety hazards due to human negligence. Therefore, we propose a storage tank pressure regulating device to solve the above problems. Utility Model Content
[0004] The purpose of this application is to provide a storage tank pressure regulating device that has the functions of automatic pressure regulation, flexible threshold setting, and intuitive monitoring.
[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a storage tank pressure regulating device, comprising a storage tank, a piston cylinder fixedly installed on the top of the storage tank, an adjusting frame fixedly installed on the top of the piston cylinder, a function box fixedly installed on the top of the storage tank, the function box being located on the right side of the piston cylinder, a common vent hole being provided between the piston cylinder and the storage tank, a piston mechanism being provided inside the piston cylinder, and an adjusting mechanism being provided on the adjusting frame; a toggle mechanism being provided inside the function box, a cylinder hole being provided on the right side of the storage tank, a pressure relief mechanism being provided inside the cylinder hole, and a plate hole being provided on the top of the function box.
[0006] A further configuration of this application is: the piston mechanism includes a piston plate and a piston rod, the piston plate is slidably installed inside the piston cylinder, the piston rod is fixedly installed on the top of the piston plate, and the top end of the piston rod passes through the top of the piston cylinder.
[0007] By adopting the above technical solution and by setting up a piston mechanism, the gas inside the tank can enter the piston cylinder through the vent hole, and the gas pressure can push the piston plate to move upward, thereby achieving the purpose of moving the slide plate upward by the piston rod.
[0008] A further configuration of this application is as follows: the adjustment mechanism includes a sliding plate, a screw, a spring, and a nut. The sliding plate is slidably installed inside the adjustment frame. The screw is fixedly installed on the top of the sliding plate. The top end of the screw extends above the adjustment frame. A spring is sleeved on the screw. The two ends of the spring are fixedly connected to the top of the sliding plate and the inner wall of the top of the adjustment frame, respectively. A nut is threaded on the screw. The nut is fixedly connected to the top of the adjustment frame. The bottom of the sliding plate is fixedly connected to the top end of the piston rod.
[0009] By adopting the above technical solution and by setting an adjustment mechanism, the preload of the spring can be adjusted by rotating the nut on the screw, thereby achieving the purpose of flexibly setting the pressure adjustment threshold.
[0010] A further configuration of this application is as follows: the lead screw mechanism includes a lead screw and a lead screw seat, the lead screw is rotatably mounted on the inner wall of the left side of the function box, the right end of the lead screw extends to the outside of the function box, the lead screw seat is threaded on the lead screw, the lead screw seat is located inside the function box, and a monitoring mechanism is provided between the lead screw and the function box.
[0011] By adopting the above technical solution and by setting up a lead screw mechanism, the lead screw can drive the lead screw seat to move left and right, thereby achieving the purpose of driving the L-shaped plate to move left and right.
[0012] A further feature of this application is that a connecting plate is fixedly installed at the top of the screw, and a gear mechanism is provided between the connecting plate and the lead screw.
[0013] By adopting the above technical solution and by setting a connecting plate, the screw can drive the rack plate to move up and down through the connecting plate.
[0014] A further configuration of this application is as follows: the gear mechanism includes a rack plate and a gear, the rack plate is fixedly installed at the bottom of the connecting plate, the rack plate is adapted to the plate hole, the gear is fixedly sleeved on the lead screw, the gear is located on the left side of the lead screw seat, and the rack plate meshes with the gear.
[0015] By adopting the above technical solution and by setting a gear mechanism, the connecting plate can drive the lead screw to rotate.
[0016] A further feature of this application is that the monitoring mechanism includes a dial, a scale value, and a pointer. The dial is fixedly installed on the right side of the function box, and the inner wall of the dial is provided with a scale value. A pointer is provided at the bottom of the lead screw, and the pointer is located outside the function box. The pointer is matched with the scale value.
[0017] By adopting the above technical solution and setting up a monitoring mechanism, the lead screw can drive the pointer to rotate. The pointer points to the scale value on the inner wall of the dial, and the pressure change inside the tank is displayed in real time through the correspondence of the scale values, which can achieve the purpose of intuitive monitoring by the operator.
[0018] A further feature of this application is that an L-shaped plate is fixedly installed on the right side of the lead screw seat, the bottom end of the L-shaped plate extends to the outside of the function box, and the L-shaped plate is located below the dial.
[0019] By adopting the above technical solution and by setting an L-shaped plate, the screw seat can drive the pressure relief cylinder to move left and right.
[0020] A further feature of this application is that the pressure relief mechanism includes a pressure relief cylinder and a pressure relief port. The pressure relief cylinder is fixedly installed on the inner side of the L-shaped plate. An air inlet is provided on the left side of the pressure relief cylinder, and a pressure relief port is provided at the bottom of the pressure relief cylinder. The pressure relief cylinder is slidably connected to the cylinder hole.
[0021] By adopting the above technical solution and by setting up a pressure relief mechanism, when the L-shaped plate moves the pressure relief cylinder to the right, the pressure relief port moves out of the tank and connects with the outside. The high-pressure gas in the tank can enter the pressure relief cylinder through the air inlet and be discharged through the pressure relief port at the bottom. This can achieve the purpose of depressurizing the storage tank and avoiding safety accidents caused by excessive pressure.
[0022] A further provision of this application is that: a feed pipe is provided at the top of the storage tank, the feed pipe is located on the left side of the piston cylinder, and a discharge pipe is provided at the bottom of the storage tank.
[0023] By adopting the above technical solution, and by setting up a feed pipe and a discharge pipe, the feed pipe can replenish materials into the tank, and the discharge pipe at the bottom is used to discharge materials.
[0024] The beneficial effects of this application are:
[0025] (1) Through the cooperation of piston plate, piston rod, slide plate, screw, spring and nut, the gas in the storage tank can push the piston plate to move upward. The spring force can be used to balance the pressure in the tank. The preload of the spring can be adjusted by rotating the nut on the screw, thereby achieving the purpose of flexibly setting the pressure adjustment threshold.
[0026] (2) Through the cooperation of the connecting plate, rack plate, gear, screw, screw seat L-shaped plate and pressure relief cylinder, the screw can move upward to drive the pressure relief cylinder to move to the right, so that the high pressure gas in the tank can enter the pressure relief cylinder through the air inlet and be discharged through the pressure relief port at the bottom. This can achieve the purpose of depressurizing the storage tank and avoiding safety accidents caused by excessive pressure. When the pressure in the tank drops to a safe range, the spring force pushes the slide plate downward, which can drive the pressure relief cylinder to reset. The pressure relief port of the pressure relief cylinder is connected to the inside of the storage tank, and the pressure relief stops. This can achieve automatic adjustment, real-time monitoring and safe pressure relief of the pressure in the storage tank, and ensure that the pressure in the storage tank is stable within the set range. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a three-dimensional structural schematic diagram of a storage tank pressure regulating device according to this application;
[0029] Figure 2 This is a schematic diagram of the internal structure of a storage tank according to a storage tank pressure regulating device of this application;
[0030] Figure 3 This is a schematic diagram of the piston cylinder and internal structure of the functional box of a storage tank pressure regulating device according to this application;
[0031] Figure 4 This is a schematic diagram of structure A of a storage tank pressure regulating device according to this application.
[0032] In the diagram: 1. Storage tank; 2. Piston cylinder; 3. Adjusting frame; 4. Function box; 5. Connecting plate; 6. Pressure relief cylinder; 7. Plate hole; 8. Dial; 101. Vent hole; 201. Piston plate; 202. Piston rod; 301. Slide plate; 302. Screw; 303. Spring; 304. Nut; 401. Lead screw; 402. Lead screw seat; 403. L-shaped plate; 501. Rack plate; 502. Gear; 601. Pressure relief port; 801. Scale value; 802. Pointer. Detailed Implementation
[0033] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0034] See Figures 1-4 This application provides a pressure regulating device for a storage tank, including a storage tank 1. A piston cylinder 2 is fixedly installed on the top of the storage tank 1, an adjusting frame 3 is fixedly installed on the top of the piston cylinder 2, and a function box 4 is fixedly installed on the top of the storage tank 1. The function box 4 is located on the right side of the piston cylinder 2. A common vent hole 101 is opened between the piston cylinder 2 and the storage tank 1. A piston mechanism is provided inside the piston cylinder 2, and an adjusting mechanism is provided on the adjusting frame 3. A threaded mechanism is provided inside the function box 4. A cylinder hole is opened on the right side of the storage tank 1, and a pressure relief mechanism is provided inside the cylinder hole. A plate hole 7 is opened on the top of the function box 4.
[0035] Specifically, the piston mechanism includes a piston plate 201 and a piston rod 202. The piston plate 201 is slidably installed inside the piston cylinder 2, and the piston rod 202 is fixedly installed on the top of the piston plate 201. The top end of the piston rod 202 passes through the top of the piston cylinder 2.
[0036] Specifically, the adjustment mechanism includes a slide plate 301, a screw 302, a spring 303, and a nut 304. The slide plate 301 is slidably installed inside the adjustment frame 3. The screw 302 is fixedly installed on the top of the slide plate 301. The top end of the screw 302 extends above the adjustment frame 3. The spring 303 is sleeved on the screw 302. The two ends of the spring 303 are fixedly connected to the top of the slide plate 301 and the inner wall of the top of the adjustment frame 3, respectively. The nut 304 is threaded on the screw 302. The nut 304 is attached to the top of the adjustment frame 3. The bottom of the slide plate 301 is fixedly connected to the top end of the piston rod 202.
[0037] Specifically, the lead screw mechanism includes a lead screw 401 and a lead screw seat 402. The lead screw 401 is rotatably mounted on the inner left side of the function box 4. The right end of the lead screw 401 extends to the outside of the function box 4. The lead screw seat 402 is threaded onto the lead screw 401. The lead screw seat 402 is located inside the function box 4. A monitoring mechanism is provided between the lead screw 401 and the function box 4.
[0038] Specifically, a connecting plate 5 is fixedly installed at the top of the screw 302, and a gear mechanism is provided between the connecting plate 5 and the lead screw 401.
[0039] Specifically, the gear mechanism includes a rack plate 501 and a gear 502. The rack plate 501 is fixedly installed at the bottom of the connecting plate 5. The rack plate 501 is adapted to the plate hole 7. The gear 502 is fixedly sleeved on the lead screw 401. The gear 502 is located on the left side of the lead screw seat 402. The rack plate 501 and the gear 502 mesh with each other.
[0040] Specifically, the monitoring mechanism includes a dial 8, a scale value 801, and a pointer 802. The dial 8 is fixedly installed on the right side of the function box 4. The scale value 801 is set on the inner wall of the dial 8. The pointer 802 is set at the bottom of the lead screw 401. The pointer 802 is located on the outside of the function box 4 and is compatible with the scale value 801.
[0041] Specifically, an L-shaped plate 403 is fixedly installed on the right side of the lead screw seat 402. The bottom end of the L-shaped plate 403 extends to the outside of the function box 4, and the L-shaped plate 403 is located below the dial 8.
[0042] Specifically, the pressure relief mechanism includes a pressure relief cylinder 6 and a pressure relief port 601. The pressure relief cylinder 6 is fixedly installed on the inner side of the L-shaped plate 403. An air inlet is provided on the left side of the pressure relief cylinder 6, and a pressure relief port 601 is provided at the bottom of the pressure relief cylinder 6. The pressure relief cylinder 6 is slidably connected to the cylinder hole.
[0043] Specifically, a feed pipe is provided at the top of storage tank 1, which is located on the left side of piston cylinder 2, and a discharge pipe is provided at the bottom of storage tank 1.
[0044] In this application, when the pressure inside the tank exceeds a set threshold, the gas inside the tank can enter the piston cylinder 2 through the vent 101. The gas pressure can push the piston plate 201 to move upward, converting the pressure signal into mechanical displacement. The piston plate 201 can drive the piston rod 202 to move synchronously, thereby pushing the slide plate 301 in the adjusting frame 3 to slide along the inner wall of the adjusting frame 3. When the slide plate 301 moves, it can compress the spring 303. By utilizing the elastic force of the spring 303 to form a balance with the pressure inside the tank, the preload of the spring 303 can be adjusted by rotating the nut 304 on the screw 302, thereby achieving the purpose of flexibly setting the pressure adjustment threshold. When the slide plate 301 moves upward, the top screw 302 can drive the connecting plate 5 to move synchronously. The rack plate 501 at the bottom of the connecting plate 5 slides upward along the plate hole 7 of the function box 4. The rack plate 501 meshes with the gear 502 to drive the linear motion into rotational motion, thereby driving the lead screw 401 to rotate clockwise, causing the lead screw seat 402 to move to the right, which can drive the vent through the L-shaped plate 403. When the pressure cylinder 6 moves to the right, the pressure relief port 601 moves out of the tank and connects to the outside. High-pressure gas inside the tank can enter the pressure relief cylinder 6 through the air inlet and exit through the pressure relief port 601 at the bottom, thus achieving pressure relief and reducing the pressure in the storage tank to prevent excessive pressure from causing safety accidents. Simultaneously, when the lead screw 401 rotates, its bottom pointer 802 rotates with the lead screw 401 within the dial 8. The pointer 802 points to the scale value 801 on the inner wall of the dial 8, displaying the real-time pressure changes inside the tank through the correspondence of the scale values 801. It enables operators to monitor the pressure directly. When the pressure inside the tank drops to a safe range, the spring force of the spring 303 pushes the slide plate 301 downward, causing the rack plate 501, gear 502, and lead screw 401 to rotate in the opposite direction. The lead screw seat 402 moves to the left, and the L-shaped plate 403 drives the pressure relief cylinder 6 to reset. The pressure relief port 601 of the pressure relief cylinder 6 is connected to the inside of the storage tank 1, stopping the pressure relief. It can achieve automatic pressure adjustment, real-time monitoring, and safe pressure relief, ensuring that the pressure inside the storage tank remains stable within the set range.
Claims
1. A pressure regulating device for a storage tank, characterized in that, The system includes a storage tank (1), a piston cylinder (2) fixedly installed on the top of the storage tank (1), an adjusting frame (3) fixedly installed on the top of the piston cylinder (2), a function box (4) fixedly installed on the top of the storage tank (1), the function box (4) being located on the right side of the piston cylinder (2), a common vent (101) being provided between the piston cylinder (2) and the storage tank (1), a piston mechanism being provided inside the piston cylinder (2), and an adjusting mechanism being provided on the adjusting frame (3); The functional box (4) is equipped with a wire-driven mechanism, the storage tank (1) has a cylindrical hole on the right side, a pressure relief mechanism is installed in the cylindrical hole, and the functional box (4) has a plate hole (7) on the top.
2. The storage tank pressure regulating device according to claim 1, characterized in that: The piston mechanism includes a piston plate (201) and a piston rod (202). The piston plate (201) is slidably installed inside the piston cylinder (2). The piston rod (202) is fixedly installed on the top of the piston plate (201). The top end of the piston rod (202) passes through the top of the piston cylinder (2).
3. The storage tank pressure regulating device according to claim 1, characterized in that: The adjustment mechanism includes a sliding plate (301), a screw (302), a spring (303), and a nut (304). The sliding plate (301) is slidably installed inside the adjustment frame (3). The screw (302) is fixedly installed on the top of the sliding plate (301). The top end of the screw (302) extends above the adjustment frame (3). The spring (303) is sleeved on the screw (302). The two ends of the spring (303) are fixedly connected to the top of the sliding plate (301) and the inner wall of the top of the adjustment frame (3), respectively. The nut (304) is threaded on the screw (302). The nut (304) is above the adjustment frame (3). The bottom of the sliding plate (301) is fixedly connected to the top end of the piston rod (202).
4. The storage tank pressure regulating device according to claim 1, characterized in that: The lead screw mechanism includes a lead screw (401) and a lead screw seat (402). The lead screw (401) is rotatably installed on the inner left side of the functional box (4). The right end of the lead screw (401) extends to the outside of the functional box (4). The lead screw seat (402) is threaded on the lead screw (401). The lead screw seat (402) is located inside the functional box (4). A monitoring mechanism is provided between the lead screw (401) and the functional box (4).
5. A storage tank pressure regulating device according to claim 3, characterized in that: A connecting plate (5) is fixedly installed at the top of the screw (302), and a gear mechanism is provided between the connecting plate (5) and the lead screw (401).
6. A storage tank pressure regulating device according to claim 5, characterized in that: The gear mechanism includes a rack plate (501) and a gear (502). The rack plate (501) is fixedly installed at the bottom of the connecting plate (5). The rack plate (501) is adapted to the plate hole (7). The gear (502) is fixedly sleeved on the lead screw (401). The gear (502) is located on the left side of the lead screw seat (402). The rack plate (501) and the gear (502) mesh.
7. A storage tank pressure regulating device according to claim 4, characterized in that: The monitoring mechanism includes a dial (8), a scale value (801), and a pointer (802). The dial (8) is fixedly installed on the right side of the function box (4). The inner wall of the dial (8) is provided with a scale value (801). The bottom of the lead screw (401) is provided with a pointer (802). The pointer (802) is located outside the function box (4). The pointer (802) is compatible with the scale value (801).
8. A storage tank pressure regulating device according to claim 4, characterized in that: An L-shaped plate (403) is fixedly installed on the right side of the lead screw seat (402). The bottom end of the L-shaped plate (403) extends to the outside of the function box (4). The L-shaped plate (403) is located below the dial (8).
9. A storage tank pressure regulating device according to claim 8, characterized in that: The pressure relief mechanism includes a pressure relief cylinder (6) and a pressure relief port (601). The pressure relief cylinder (6) is fixedly installed on the inner side of the L-shaped plate (403). An air inlet is provided on the left side of the pressure relief cylinder (6), and a pressure relief port (601) is provided at the bottom of the pressure relief cylinder (6). The pressure relief cylinder (6) is slidably connected to the cylinder hole.
10. A storage tank pressure regulating device according to claim 1, characterized in that: The storage tank (1) is provided with a feed pipe at the top, which is located on the left side of the piston cylinder (2), and a discharge pipe is provided at the bottom of the storage tank (1).