Hazardous chemical anti-dumping and diffusion device
By using a dual monitoring network consisting of a triaxial accelerometer and a pressure sensor in hazardous chemical storage devices, combined with an automatic telescopic fireproof and explosion-proof curtain and sealing auxiliary components, accurate monitoring and timely closure of hazards are achieved. This solves the problems of incomplete identification and lack of emergency isolation in traditional devices, and improves the accuracy of early warning and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI REETENG INSTR EQUIP
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional hazardous chemical storage facilities rely on a single sensor, resulting in incomplete hazard identification, a lack of effective emergency isolation mechanisms, and an early warning accuracy rate of less than 60%, often missing the best opportunity for response.
A dual monitoring network consisting of a triaxial accelerometer and a pressure sensor, along with an automatic telescopic fireproof and explosion-proof curtain and sealing auxiliary components, forms an emergency isolation and sealing system. Through precise monitoring by the triaxial accelerometer and pressure sensor, the automatic telescopic fireproof and explosion-proof curtain is triggered to fall and the air-filled sealing strip of the sealing auxiliary components is expanded, achieving comprehensive monitoring and emergency sealing.
It improved the accuracy of hazard monitoring and the efficiency of containment, ensuring timely isolation and sealing when hazards occur, and reducing the risk of accidents such as fires and poisoning.
Smart Images
Figure CN224448947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hazardous chemical safety, specifically to a device for preventing the tipping and diffusion of hazardous chemicals. Background Technology
[0002] Hazardous chemicals, such as flammable and explosive liquids, toxic gases, and corrosive chemicals, are prone to tipping, leakage, or even explosion during storage due to collisions, vibrations, temperature changes, or aging of the tank. Once they spread, they can cause serious consequences such as fires, poisoning, and environmental pollution.
[0003] Traditional devices often rely on a single sensor, such as a tilt switch or pressure alarm, which makes it difficult to fully identify potential hazards. For example, a device that only monitors the tilt angle cannot predict the risk of tank leakage, and a single pressure sensor is completely ineffective against physical leaks caused by tipping, resulting in an early warning accuracy rate of less than 60%, often missing the best time to deal with the situation. In addition, most storage tanks only achieve basic sealing through the tank door and lack an emergency isolation mechanism.
[0004] Therefore, it is necessary to invent a device to prevent the dumping and diffusion of hazardous chemicals to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a hazardous chemical anti-tipping and diffusion device. By setting up a dual monitoring network composed of a triaxial acceleration sensor and a pressure sensor, and combining it with an automatic telescopic fireproof and explosion-proof curtain and sealing auxiliary components, an emergency isolation and sealing system is formed. This can solve the problems in the existing technology where traditional devices rely on a single sensor, resulting in incomplete identification of hazards and a lack of an effective emergency isolation mechanism.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a hazardous chemical anti-dumping and anti-diffusion device, comprising;
[0007] The box body is used to support the overall device. A box door is provided on the right side of the box body. A storage tank is placed on the inner wall of the box body. An automatic telescopic fireproof and explosion-proof curtain is fixedly connected to the upper part of the side of the box body near the box door. A slide rail is fixedly connected to the inner side of the box body. The moving end of the automatic telescopic fireproof and explosion-proof curtain slides on the inner wall of the slide rail.
[0008] A sealing auxiliary component is disposed on the inner wall of the box. The sealing auxiliary component includes an air cylinder, which is fixedly connected to the inner wall of the box. A piston disc is connected to the inner wall of the air cylinder. A connecting rod is fixedly connected to the top center of the piston disc. A contact element is sleeved on the outer side of the top of the connecting rod. A compression rod is fixedly connected to the right surface of the automatic telescopic fireproof and explosion-proof curtain near the contact element. An inflatable sealing strip is embedded in the right inner wall of the slide rail. The air cylinder and the inflatable sealing strip are connected through a connecting pipe.
[0009] Preferably, the contact element is L-shaped, and the outer side of the contact element is made of rubber. The lower part of the piston disc is elastically connected to the inner side of the air cylinder by a return spring.
[0010] Preferably, the reset spring includes a spring, one end of which contacts the lower part of the piston disc, and the other end of which contacts the lower inner wall of the cylinder.
[0011] Preferably, the slide rail is U-shaped, and a groove is provided on the outer side of the slide rail for the automatic telescopic fireproof and explosion-proof curtain to slide. A sealing gasket is fixedly connected to the left side wall of the slide rail groove.
[0012] Preferably, an activated carbon adsorption device is fixedly connected to the left side of the box.
[0013] Preferably, a triaxial accelerometer and a pressure sensor are fixedly connected to the outside of the storage tank from top to bottom.
[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0015] The sealing auxiliary component of this utility model works in conjunction with the fireproof and explosion-proof curtain. When the curtain falls, the extrusion rod squeezes the L-shaped contact piece, and the piston disc in the air cylinder is pushed down through the connecting rod. The gas is then forced into the inflatable sealing strip in the slide rail through the connecting pipe, causing the strip to expand and tightly fit the gap between the curtain and the slide rail. The sealing gasket on the left side of the slide rail further enhances the sealing performance. At the same time, the combined use of a triaxial accelerometer and a pressure sensor can accurately capture the tilt angle of the tank, improving monitoring efficiency. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;
[0018] Figure 2 This is a bottom view of the three-dimensional structure of the overall device in this utility model;
[0019] Figure 3 This is a three-dimensional structural disassembly diagram of the sealing auxiliary component in this utility model;
[0020] Figure 4 This is a three-dimensional cross-sectional view of the inflatable sealing strip in this utility model.
[0021] Legend:
[0022] 1. Box body; 2. Box door; 3. Storage tank; 4. Triaxial accelerometer; 5. Pressure sensor; 6. Automatic telescopic fireproof and explosion-proof curtain; 7. Slide rail; 8. Sealing auxiliary components; 81. Air cylinder; 82. Piston disc; 83. Connecting rod; 84. Contact element; 85. Return spring; 86. Connecting pipe; 87. Inflatable sealing strip; 88. Extrusion rod; 9. Sealing gasket; 10. Activated carbon adsorption device. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0024] This utility model provides, for example Figure 1 - Figure 3 A hazardous chemical anti-dumping and diffusion device is shown, comprising a housing 1 and a sealing auxiliary component 8;
[0025] The enclosure 1 supports the entire device and is made of high-strength alloy material such as 304 stainless steel, which has impact resistance and corrosion resistance. It provides a stable installation space for the internal storage tank 3 and various components. A local touch screen is installed on the front right side. An alarm light is installed on the top of the enclosure 1. The enclosure 1 has a door 2 on the right side, which is connected by hinges and explosion-proof locks. It is used to put in and take out the storage tank 3 under normal circumstances. When closed, it forms a preliminary seal with the enclosure 1 to prevent gas leakage in non-hazardous situations. The storage tank 3 is placed on the inner wall of the enclosure 1 for storing various hazardous chemicals. An automatic telescopic fireproof and explosion-proof curtain 6 is fixedly connected to the upper part of the side of the enclosure 1 near the door 2. It is made of high-temperature resistant and impact-resistant composite fiber material such as fiberglass cloth + metal mesh. It is automatically telescopic through a rotating shaft and motor. Under normal circumstances, it is retracted at the top of the enclosure 1. In case of an emergency, it falls quickly along the slide rail 7 to form a physical isolation barrier. Its fire-resistant properties can block the spread of flames, and its explosion-proof performance can withstand the shock wave of the explosion of the storage tank 3, preventing the spread of danger. The inner side of the box 1 is fixedly connected with a slide rail 7, which provides a guide track for the curtain to rise and fall, ensuring that the falling process is smooth and without jamming. The moving end of the automatic telescopic fireproof and explosion-proof curtain 6 slides on the inner wall of the slide rail 7.
[0026] A sealing auxiliary component 8 is disposed on the inner wall of the housing 1. The sealing auxiliary component 8 includes an air cylinder 81, which is fixedly connected to the inner wall of the housing 1 and serves as the air source for the inflatable sealing strip 87. When the piston disc 82 is pressed down, the gas in the air cylinder 81 is delivered to the sealing strip through the connecting pipe 86 to provide power for sealing. The piston disc 82 is piston-connected to the inner wall of the air cylinder 81. When pushed by the connecting rod 83, the gas in the air cylinder 81 is compressed and delivered to the inflatable sealing strip 87. The connecting rod 83 is fixedly connected to the top center of the piston disc 82, which is a rigid rod connecting the piston disc 82 and the contact member 84. It converts the lateral extrusion force on the contact member 84 into an axial force that pushes the piston disc 82. The contact member 84 is sleeved on the outer side of the top of the connecting rod 83. The contact member 84 is L-shaped. The L-shaped structure ensures effective contact with the extrusion rod 88. The contact element 84 is made of rubber, which can buffer the impact force during compression. The right side surface of the automatic telescopic fireproof and explosion-proof curtain 6 is fixedly connected to the upper part of the contact element 84. When the curtain of the automatic telescopic fireproof and explosion-proof curtain 6 falls, the compression rod 88 moves down and squeezes the contact element 84, triggering the inflation action of the sealing auxiliary component 8. The right inner wall of the slide rail 7 is fitted with an inflatable sealing strip 87. The hollow rubber strip fitted into the right inner wall of the slide rail 7 is flat when not inflated. After inflation, it expands and tightly fits the side of the fireproof and explosion-proof curtain and the groove of the slide rail 7, filling the gap and achieving a seal. Its surface is smooth. The fireproof and explosion-proof curtain can squeeze the inflatable sealing strip 87 and close it with the inner wall of the slide rail 7. The air cylinder 81 and the inflatable sealing strip 87 are connected through the connecting pipe 86.
[0027] like Figure 2 - Figure 4 As shown, the lower part of the piston disc 82 is elastically connected to the inner side of the air cylinder 81 via a return spring 85. The return spring 85 includes a spring, one end of which contacts the lower part of the piston disc 82, and the other end of which contacts the lower inner wall of the air cylinder 81. It is composed of a high-strength spring and normally supports the piston disc 82 in the upper position. After sealing, when the pressure of the extrusion rod 88 disappears, the spring elastically returns to its original position, pushing the piston disc 82 upward, causing the air cylinder 81 to draw in air and the inflatable sealing strip 87 to contract, preparing for the next use.
[0028] like Figure 1 - Figure 3As shown, the slide rail 7 is U-shaped to enhance sealing. A groove is provided on the outer side of the slide rail 7 for the sliding of the automatic retractable fireproof and explosion-proof curtain 6. A sealing gasket 9 is fixedly connected to the left side wall of the groove in the slide rail 7. An activated carbon adsorption device 10 is fixedly connected to the left side of the housing 1. A fan is installed on the left side of the housing 1, which transports the volatile gas into the activated carbon adsorption device 10 for treatment. The treated gas is then discharged back into the housing 1. A triaxial accelerometer 4 and a pressure sensor 5 are fixedly connected sequentially from top to bottom on the outer side of the storage tank 3 to monitor pressure changes within the storage tank 3. The triaxial accelerometer 4 can detect the tilt angle, vibration frequency, and acceleration changes of the storage tank 3 in real time. When the storage tank 3 shows a tendency to tip over due to collision or shaking, it immediately sends a warning signal to the control system, triggering subsequent protective actions.
[0029] The working principle of this system is as follows: A triaxial accelerometer 4 and a pressure sensor 5 on the outside of the storage tank 3 form a dual monitoring network. The triaxial accelerometer 4 is fixed to the outside of the storage tank 3 at a height of 1 / 3 from the top of the tank with bolts. The sampling frequency is set to 100Hz, which can accurately capture the tilt angle (detection range ±180°), vibration frequency (0~50Hz), and instantaneous acceleration changes of the tank in the X, Y, and Z axes. When the tank tilts due to external impact, such as accidental contact by a forklift, if the tilt angle of the X or Y axis exceeds the safety threshold of 15° for 3 seconds, the sensor immediately sends a level signal to the control system to trigger a first-level warning. If the tilt angle suddenly increases to more than 30°, such as in the early stage of the tank tipping over, a pulse signal is sent to directly trigger the descent command of the automatic telescopic fireproof and explosion-proof curtain 6. At the same time, the sensor records the tilt trajectory and vibration spectrum to provide data support for subsequent hazard analysis.
[0030] Pressure sensor 5 is installed at the bottom of storage tank 3, at 1 / 4 height from the bottom of the tank. It has a measurement range of 0~1MPa and an accuracy of ±0.5%FS. It can be equipped with a built-in temperature compensation module to eliminate the influence of ambient temperature (-20~80℃) on the measurement. Under normal conditions, the internal pressure of the tank is stable at around 0.1 MPa, and the sensor transmits pressure data to the system every 5 seconds. If leakage occurs due to a loose valve in the tank, the internal pressure will drop below the leakage threshold of 0.05 MPa within 1 minute, and the sensor will immediately send a continuous fluctuation signal (frequency 5 Hz). If the internal pressure rises above the overpressure threshold of 0.2 MPa within 30 seconds due to a sudden increase in ambient temperature (such as direct sunlight), the sensor will output a stepped voltage signal. At this time, the automatic telescopic fireproof and explosion-proof curtain 6 will close within 3 seconds, and the fan of the activated carbon adsorption device 10 will start (air volume 100 m³ / h) to adsorb the volatile gases in the box 1. If only a single sensor triggers the threshold, such as only tilting without leakage or only leakage without tilting, the alarm light will flash red and the buzzer will sound an alarm. After a 10-second delay, the isolation action will be performed to avoid false triggering. The working principle of the above sensors is existing technology and can be implemented by those skilled in the art. Since it is existing technology, it will not be described in detail in this case.
[0031] During the descent of the automatic telescopic fireproof and explosion-proof curtain 6, the compression rod 88 on its right surface moves downward, gradually contacting and compressing the L-shaped contact piece 84. The rubber material on the outside of the contact piece 84 buffers the impact force, and at the same time, the force is transmitted to the piston disc 82 inside the air cylinder 81 through the connecting rod 83, pushing the piston disc 82 downward to compress the internal gas and squeeze the return spring 85. The gas is then transported through the connecting pipe 86 to the inflatable sealing strip 87 on the right side of the slide rail 7, causing the inflatable sealing strip 87 to expand and tightly fit the groove between the side of the automatic telescopic fireproof and explosion-proof curtain 6 and the slide rail 7, filling the gap and achieving a seal. At the same time, the sealing gasket 9 on the left side of the slide rail 7 makes tight contact with the left side of the automatic telescopic fireproof and explosion-proof curtain 6 for a second seal.
[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A hazardous chemical spill containment device, characterized by, include; The box (1) is used to support the overall device. The box (1) has a door (2) on the right side. The inner wall of the box (1) is filled with a storage tank (3). An automatic telescopic fireproof and explosion-proof curtain (6) is fixedly connected to the upper part of the side of the box (1) near the door (2). A slide rail (7) is fixedly connected to the inner side of the box (1). The moving end of the automatic telescopic fireproof and explosion-proof curtain (6) slides on the inner wall of the slide rail (7). A sealing auxiliary component (8) is provided on the inner wall of the box (1). The sealing auxiliary component (8) includes an air cylinder (81). The air cylinder (81) is fixedly connected to the inner wall of the box (1). A piston disc (82) is connected to the inner wall of the air cylinder (81). A connecting rod (83) is fixedly connected to the middle of the top of the piston disc (82). A contact element (84) is sleeved on the outer side of the top of the connecting rod (83). A squeezing rod (88) is fixedly connected to the right side surface of the automatic telescopic fireproof and explosion-proof curtain (6) above the contact element (84). An inflatable sealing strip (87) is embedded in the inner wall of the right side of the slide rail (7). The air cylinder (81) and the inflatable sealing strip (87) are connected through a connecting pipe (86).
2. The hazardous chemical spill-prevention device of claim 1, wherein: The contact (84) is L-shaped and the outer side of the contact (84) is made of rubber. The lower part of the piston disc (82) is elastically connected to the inner side of the air cylinder (81) by a return spring (85).
3. The hazardous chemical spill-prevention device of claim 2, wherein: The reset spring (85) includes a spring, one end of which contacts the lower part of the piston disc (82), and the other end of which contacts the lower inner wall of the air cylinder (81).
4. The hazardous chemical spill-prevention device of claim 1, wherein: The slide rail (7) is U-shaped, and a groove is provided on the outer side of the slide rail (7) for the automatic telescopic fireproof and explosion-proof curtain (6) to slide. A sealing gasket (9) is fixedly connected to the left side wall of the groove of the slide rail (7).
5. The hazardous chemical spill-prevention device of claim 1, wherein: An activated carbon adsorption device (10) is fixedly connected to the left side of the box (1).
6. The hazardous chemical spill prevention device of claim 1, wherein: A triaxial accelerometer (4) and a pressure sensor (5) are fixedly connected to the outside of the storage tank (3) from top to bottom.