Flexible rapid plugging rescue device for dangerous chemical leakage

By using a flexible and rapid sealing and rescue device, which utilizes high-pressure injection of sealant to create centripetal force, the limitations of existing technologies for sealing hazardous chemical leaks are overcome. This enables rapid and safe sealing within a wide range of temperatures and pressures, and is suitable for leak points of various materials and shapes, especially for sealing highly corrosive and toxic media.

CN121828536APending Publication Date: 2026-04-10王欣煜
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-05
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing emergency plugging methods for hazardous chemical leaks have limitations in terms of applicable temperature, pressure, medium, and leak location, and are complex to operate and not safe or quick enough.

Method used

The flexible and rapid sealing and rescue device includes a high-quality manual high-pressure oil pump, gauge base connector, pressure gauge, quick-connect connector, high-pressure hose, automatic reset continuous injection gun, locking tools, and flange sealing sleeve. It uses high-pressure injection of sealant to form a uniform centripetal force, thereby achieving rapid sealing of leaks of different sizes and materials.

Benefits of technology

It achieves rapid, safe, and widely applicable sealing effects under conditions of -195℃ to 900℃ and vacuum to 20MPa. It is easy to operate, highly applicable, and suitable for leak points of various metal and non-metal materials, including sealing of highly corrosive, toxic, harmful, flammable, and explosive media.

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Abstract

The invention provides a flexible quick plugging rescue device for dangerous chemical leakage. The flexible quick plugging rescue device structurally comprises a high-quality manual high-pressure oil pump, a gauge stand connector, a pressure gauge, a quick coupler, a high-pressure hose, an automatic reset continuous injection gun, a lock tool and a flange plugging sleeve. The plugging device has the advantages that the plugging speed is high, the maneuvering performance is high, the on-site surveying and mapping time and the clamp designing and machining time before plugging are omitted, the emergency disposal speed is high, and plugging of common leakage points can be completed within 10 minutes; the device is high in applicability, wide in application range and convenient to carry, can be assembled and installed in real time on site, and is not influenced by factors such as the size, shape, environment and place of original equipment; the safety performance is high, the economic and social benefits are remarkable, no spark is generated, fire operation is not needed, no magnetism and explosion prevention are achieved, and safety is guaranteed; the operation is simple and easy to learn and master.
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Description

Technical Field

[0001] This invention relates to the field of flexible rapid sealing technology, and more specifically to a flexible rapid sealing and rescue device for hazardous chemical leaks. Background Technology

[0002] Hazardous chemicals are defined as any chemical that possesses dangerous properties such as flammability, explosiveness, corrosivity, toxicity, or radioactivity, and that, under certain conditions (such as being subjected to friction, impact, vibration, contact with a source of ignition, exposure to sunlight, contact with water, temperature changes, or contact with other substances with incompatible properties), can cause combustion, explosion, or accidents resulting in poisoning, burns, death, or property damage. Currently, the main methods for emergency sealing of hazardous chemical leaks include fixed clamp method, adhesive sealant sealing method, strong magnetic sealing method, and steel strapping method. These methods have their own technical characteristics and limitations in terms of applicable temperature, pressure, medium, leak location, and sealing speed. Adhesive sealant for leak sealing: It is not suitable for leaks under high system pressure, as the adhesive is difficult to bond to the metal at the leak point. The metal surface near the leak point must be thoroughly cleaned, otherwise the bonding effect will be affected. After the adhesive has cured, its elasticity is poor. If the leak is caused by temperature fluctuations, the thermal expansion and contraction of the metal material will have an adverse effect on the sealing effect. Fixed clamp method for leak sealing: Without stopping production or affecting normal operations; Wide range of applications: Applicable temperature: System temperature range is -195~900℃; Applicable pressure: The system pressure of the device is from vacuum to 32 MPa; Applicable media: This technology can eliminate leaks of almost all media, except for media with extremely high toxicity or extremely high solubility. Applicable parts: Relatively regular flanges, holes, cracks, welding defects, etc. in equipment and pipelines; Leak sealing method using steel strapping: There is no need to measure the relevant dimensions of the leak point on-site, or to carry out a series of preparatory work such as fixture design and manufacturing; Applicable pressure: <1MPa; Suitable for sealing leaks with a nominal diameter (DN) less than 600mm. This applies to pipe perforation diameters less than 5mm, concentric flanges of the same diameter with a flange clearance less than 10mm, and is suitable for short-term emergency applications. Applicable temperature: 0~120℃; Strong magnetic sealant: Primarily designed for magnetic steel containers, this system seals and mitigates leaks of different media caused by valve deformation and bulging leak holes under pressure and varying temperatures. It utilizes the attraction of strong magnetic materials and the sealing properties of soft gaskets to achieve the leak-stopping effect. Applicable temperature: <80℃; Applicable pressure: <2MPa; Applicable media: hazardous chemicals; The "flexible pressure hazardous chemical leak rapid sealing technology" not only makes up for the shortcomings of common leak sealing methods that are limited by objective conditions, but also highlights the superior characteristics of safety, speed and strong applicability. Summary of the Invention

[0003] The technical solution adopted by this invention to achieve its technical objective is: a flexible and rapid sealing and rescue device for hazardous chemical leaks, the structure of which includes: a high-quality manual high-pressure oil pump, a gauge base connector, a pressure gauge, a quick-connect connector, a high-pressure hose, an automatic reset continuous injection gun, a locking tool, and a flange sealing sleeve. The high-quality manual high-pressure oil pump is connected to the pressure gauge and the quick-connect connector through the gauge base structure. The quick-connect connector is connected to one end of the high-pressure hose, and the other end of the high-pressure hose is connected to the automatic reset continuous injection gun. The locking tool is connected to the automatic reset continuous injection gun and the flange sealing sleeve.

[0004] As a further improvement of the present invention, the locking tool also includes a locking belt, a front locking device, a rear locking device, a locking tensioner, a sealing slider, a copper pressure plate, a sealing strip, a set screw, and related flange sealing sleeves, straight pipe sealing sleeves, elbow sealing sleeves, root sealing, tank assembly sealing, and valve stuffing box sealing positions for coordinated sealing.

[0005] As a further improvement of the present invention, the flange of the flange sealing sleeve can be divided into elliptical / square flange, misaligned flange, reducer flange, and tank manhole flange, which are suitable for rapid sealing of leaks in different parts of various production devices.

[0006] As a further improvement of the present invention, the pipelines of the various production devices can be divided into straight pipes, elbows, tees, reducing pipes, and fixed connections with locking tools.

[0007] As a further improvement of the present invention, the flexible rapid rescue device can seal leaks of various shapes, such as holes, cracks, sand holes, and threads, in flanges, pipes and fittings, elbows, tanks, valves, stuffing boxes, etc. of different sizes and specifications. It is especially effective at difficult locations such as the base of the tank, irregularly shaped flanges such as square or elliptical ones, and threaded joints, and is not affected by the material of the leaking part. It can quickly seal devices made of various metal and non-metal materials.

[0008] As a further improvement of the present invention, the flexible rapid rescue device can seal the leakage of various media, including gaseous and liquid media such as hazardous chemicals (especially highly corrosive, toxic, flammable and explosive, high temperature and high pressure media, such as chlorine, butadiene, condensate oil, ethanol, ammonia, water vapor, etc.).

[0009] As a further improvement of the present invention, the flexible rapid rescue device is applicable to the following process conditions: Leakage medium temperature: -195℃ to 900℃; Leakage medium pressure: Vacuum - 20MPa (200kg / cm²) 2 ).

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention features fast sealing speed and strong mobility, eliminating the time required for on-site surveying, fixture design and processing before sealing. It also allows for rapid emergency response, enabling the sealing of general leaks within 10 minutes.

[0011] 2. This invention has strong applicability and wide application range. It is easy to carry and can be assembled and installed on site immediately, without being affected by factors such as the size, shape, environment, and location of the original equipment.

[0012] 3. This invention has high safety performance and significant economic and social benefits. It does not produce any sparks, requires no open flame, is non-magnetic and explosion-proof, thus ensuring safety.

[0013] 4. This invention is simple to operate and easy to learn and master. Attached Figure Description

[0014] Figure 1 This is a structural diagram of a flexible, rapid containment and rescue device for hazardous chemical leaks.

[0015] Figure 2 This is a schematic diagram representing a classification of various flange types.

[0016] Figure 3 This is a schematic diagram of a type of pipeline.

[0017] Figure 4 This is a schematic diagram of a straight pipe sealing structure.

[0018] Figure 5 This is a schematic diagram of a type of elbow pipe sealing structure.

[0019] In the picture: Premium manual high-pressure oil pump-1, gauge base connector-2, pressure gauge-3, quick-connect connector-4, high-pressure hose-5, automatic reset continuous injection gun-6, locking tools-7, flange sealing sleeve-8. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings: Example: Figures 1 to 5 As shown: This invention provides a flexible and rapid containment and rescue device for hazardous chemical spills. Its structure includes: a high-quality manual high-pressure oil pump 1, a gauge base connector 2, a pressure gauge 3, a quick-connect connector 4, a high-pressure hose 5, an automatic reset continuous injection gun 6, a locking tool 7, and a flange sealing sleeve 8. The high-quality manual high-pressure oil pump 1 is connected to the pressure gauge 3 and the quick-connect connector 4 through the gauge base structure 2. The quick-connect connector 4 is connected to one end of the high-pressure hose 5, and the other end of the high-pressure hose 5 is connected to the automatic reset continuous injection gun 6. The locking tool 7 is connected to the automatic reset continuous injection gun 6 and the flange sealing sleeve 8.

[0021] As a further improvement of the present invention, the locking tool 7 also includes a locking belt, a front locking device, a rear locking device, a locking tensioner, a sealing slider, a copper pressure plate, a sealing strip, a set screw, and related flange sealing sleeves, straight pipe sealing sleeves, elbow sealing sleeves, root sealing, tank body sealing, and valve stuffing box sealing positions for coordinated sealing.

[0022] As a further improvement of the present invention, the flange of the flange sealing sleeve 8 can be divided into elliptical / square flange, misaligned flange, reducer flange, and tank manhole flange, which are suitable for rapid sealing of leaks in different parts of various production devices.

[0023] As a further improvement of the present invention, the pipelines of the various production devices can be divided into straight pipes, elbows, tees, reducing pipes, and fixed connections with locking tools 7.

[0024] As a further improvement of the present invention, the flexible rapid rescue device can seal leaks of various shapes, such as holes, cracks, sand holes, and threads, in flanges, pipes and fittings, elbows, tanks, valves, stuffing boxes, etc. of different sizes and specifications. It is especially effective at difficult locations such as the base of the tank, irregularly shaped flanges such as square or elliptical ones, and threaded joints, and is not affected by the material of the leaking part. It can quickly seal devices made of various metal and non-metal materials.

[0025] As a further improvement of the present invention, the flexible rapid rescue device can seal the leakage of various media, including gaseous and liquid media such as hazardous chemicals (especially highly corrosive, toxic, flammable and explosive, high temperature and high pressure media, such as chlorine, butadiene, condensate oil, ethanol, ammonia, water vapor, etc.).

[0026] As a further improvement of the present invention, the flexible rapid rescue device is applicable to the following process conditions: Leakage medium temperature: -195℃ to 900℃; Leakage medium pressure: Vacuum - 20MPa (200kg / cm²) 2 ).

[0027] The specific functions and operation procedures of this embodiment are as follows: In this invention, the flexible and rapid sealing and rescue device for hazardous chemical leaks, when a leak occurs in a heated and pressurized system, uses a special flexible pressure-applying sealing and tightening device to tightly attach a special rigging to the leak site, generating a uniform centripetal force from the outside in, thereby forming a new sealing structure (a new sealing cavity). Then, using an external thrust greater than the pressure inside the medium system, a special sealant is injected into the channels and gaps through the injection point, filling the entire sealed cavity, blocking the leak holes and channels until there is no leakage, thereby achieving the purpose of eliminating the medium leak. The rapid sealing technology for emergency response to hazardous chemical leaks consists of three parts: specialized tools, sealants, and sealing operation techniques. No single component can form the technical capability for rapid sealing on its own. Each component has room for improvement, enhancement, and development and can independently develop to a higher level. In the actual application of sealing leaks, the three components should give full play to their comprehensive characteristics of mutual coordination, mutual influence, and complementarity. Neglecting the technical capabilities that any of the three components must achieve according to the relevant regulations may lead to the complete failure of the leak sealing work. Furthermore, the applicable process conditions for the flexible rapid containment and rescue device for hazardous chemical leaks are: leak medium temperature: -195℃~900℃, leak medium pressure: vacuum~20MPa (200kg / cm³). 2 ); Its applicable structures and locations for sealing leaks are as follows: Leakage locations: It can seal leaks of various shapes, such as holes, cracks, sand holes, and threads, in flanges, pipes and fittings, elbows, tanks, valve stuffing boxes, etc. of different sizes and specifications, especially difficult locations such as the root of the tank, square or oval flanges, and threaded joints. Moreover, this product is not affected by the material of the leak location and can quickly seal various metal and non-metal devices. Leakage media: It can seal leaks of various media, including gaseous and liquid media such as hazardous chemicals (especially highly corrosive, toxic, harmful, flammable and explosive, high temperature and high pressure media, such as chlorine, butadiene, condensate oil, ethanol, ammonia, water vapor, etc.). The flexible and rapid containment and rescue device for hazardous chemical leaks consists of the following components: a high-quality manual high-pressure oil pump (1), a gauge base connector (2), a pressure gauge (3), a quick-connect connector (4), a high-pressure hose (5), an automatic reset continuous injection gun (6), and locking tools (7). It is then combined with the locking tools, including the locking strap, front lock, rear lock, lock tensioner, sealing slider, copper pressure plate, sealing tape, set screw, and related flange sealing sleeves, straight pipe sealing sleeves, elbow sealing sleeves, root sealing, tank assembly sealing, and valve stuffing box sealing positions for effective sealing. The operation method for the flange sealing sleeve is as follows: The tools used include rigging straps, front rigging, rear rigging, rigging tensioners, etc.; depending on the working conditions, the sealant injector used can be an injection conduit or a new type of screw hole injection connector. Then observe the state after the leak point is sealed. (After applying the rapid sealing technology to seal each leak point, a certain amount of time must be allowed to observe the sealing effect, because the specific working conditions of each leak point are different when sealing each leak point, and the filling state of the sealant injected into the sealing cavity is different (whether it is compressed, whether there are unfilled dead corners, etc.). In addition, the sealant undergoes an inevitable process of volume change, all of which determine whether each leak point can maintain a stable sealing effect for a long time after sealing.) Its operation is as follows: Install rigging straps; Pressurize and tighten; Inject sealant; Connect the glue injection gun head to the new type of screw hole injection connector. The glue injection method is the same as the guide tube injection method. After the glue injection is completed, close the stopcock valve on the new type of screw hole injection connector, close the oil pump switch connected to the glue injection gun, depressurize, remove the glue injection gun, tighten the set screw of the front rigging, close the oil pump switch connected to the hydraulic rigging tensioner, depressurize, loosen the set screw of the rear rigging, and use hydraulic rigging shears to cut the rigging tape at the position between the front rigging and the hydraulic rigging tensioner to complete the final sealing operation. Observe the state of the leak point after sealing. The operating procedure for the straight pipe plugging (multi-purpose) kit is as follows: There are many reasons for pipeline leaks, which may be caused by various defects such as uniform corrosion, pitting corrosion, pinholes in pipeline welds, and cracks. The tools used in this sealing operation include rigging straps, sealing sliders, multi-purpose rigging, front rigging, rear rigging, sealing tape, hydraulic rigging shears, and rigging tensioners. Two rigging straps are cut according to the outer diameter of the pipe, and their length is the circumference of the equipment at the leak point + 1 meter; Open the straight pipe plugging (multi-purpose) kit. Depending on the size of the leak point, first use two rigging straps to wrap around the straight pipe at the leak point, and then pass them through the through holes on both sides of the multi-purpose front rigging, the rigging tensioner, and the through hole on the multi-purpose rear rigging. Install the sealing tape and matching copper pressure plate between the rigging strap and the leaking part; The manual high-pressure oil pump is connected to the rigging tensioner via a high-pressure hose, and is pressurized and tightened until there is no leakage at the leak point; Tighten the top screw of the front rigging, turn off the oil pump switch connected to the hydraulic rigging tensioner, and release the pressure; Loosen the top screw of the rear rigging, and use rigging shears to cut the rigging strap between the front rigging and the rigging tensioner to complete the final sealing operation; Observe the condition of the leak point after it has been sealed; The operation method for the straight pipe plugging kit is as follows: Select appropriate sealing sliders and sealing materials according to the pipe diameter. Fill the sealing material into the sealing groove of the sealing slider; Embed the rigging strap into the groove of the sealing slider, assemble it next to the leak point, and make the two ends of the rigging strap pass through the front rigging, rigging tensioner and rear rigging in sequence; The manual high-pressure oil pump is connected to the rigging tensioner via a high-pressure hose. Quickly move the assembled device to the leak point and pressurize it to ensure the sealing material adheres tightly to the leak point until there is no leakage. Tighten the top screw of the front rigging, turn off the oil pump switch connected to the hydraulic rigging tensioner, and release the pressure; Loosen the top screw of the rear rigging, and use rigging shears to cut the rigging strap between the front rigging and the rigging tensioner to complete the final sealing operation; Observe the condition of the leak point after it has been sealed; Elbow sealing sleeve operation method: Select appropriate sealing sliders and sealing materials based on the outer diameter of the elbow. Fill the sealing material into the sealing groove of the sealing slider; Embed the rigging strap into the groove of the sealing slider, assemble it next to the leak point, and make the two ends of the rigging strap pass through the front rigging, rigging tensioner and rear rigging in sequence; The manual high-pressure oil pump is connected to the rigging tensioner via a high-pressure hose. Quickly move the assembled device to the leak point and pressurize it to ensure the sealing material adheres tightly to the leak point until there is no leakage. Tighten the top screw of the front rigging, turn off the oil pump switch connected to the hydraulic rigging tensioner, and release the pressure; Loosen the top screw of the rear rigging, and use rigging shears to cut the rigging strap between the front rigging and the rigging tensioner to complete the final sealing operation; Observe the condition of the leak point after it has been sealed; Root sealing operation method: It is suitable for sealing various root and threaded connection leaks. The tools used for this sealing operation include rigging straps, positioning clips, front rigging, rear rigging, sealing tape, hydraulic rigging shears, and rigging tensioners. Select the appropriate positioning clip according to the pipe diameter and install it securely. Use sealing tape to partially wrap the rigging straps; Apply the sealing wrapping tape to the leak, and pass both ends of the rigging strap through the front rigging, rigging tensioner, and rear rigging in sequence. The manual high-pressure oil pump is connected to the rigging tensioner via a high-pressure hose to pressurize and tighten the rigging. Tighten the top screw of the front rigging, turn off the oil pump switch connected to the hydraulic rigging tensioner, and release the pressure; Loosen the top screw of the rear rigging, and use rigging shears to cut the rigging strap between the front rigging and the rigging tensioner to complete the final sealing operation; Observe the condition of the leak point after it has been sealed; Tank assembly operation method: The tools used in the sealing operation include rigging straps, special-shaped rigging, front rigging, rear rigging, sealing materials, rigging shears, and rigging tensioners; Cut the rigging straps. Cut three rigging straps according to the outer diameter of the tank for sealing. The length of each cut rigging strap is the circumference of the equipment at the leak point + 1 meter. Install irregularly shaped rigging near the leak point on the tank and keep the glue injection valve open; Pass the rigging strap through the front rigging, rigging tensioner and rear rigging in sequence, keeping the rigging strap embedded in the mounting groove of the irregular rigging, and tighten the set screw of the rear rigging; The manual high-pressure oil pump is connected to the rigging tensioner via a high-pressure hose to pressurize and tighten the rigging. Inject the sealant and connect the injection gun head to the irregular rigging via the injection valve; for details on the injection method, please refer to the flange sealing kit operation method. After the glue injection operation is completed, close the stopcock valve of the injection valve; Turn off the oil pump switch connected to the injection gun, release the pressure, and disconnect the injection gun; Tighten the front rigging set screw and turn off the oil pump switch connecting the rigging tensioner to release pressure; Loosen the top screw of the rear rigging, and use rigging shears to cut the rigging strap between the front rigging and the rigging tensioner to complete the final sealing operation; Observe the condition of the leak point after it has been sealed; The valve stuffing box leakage sealing operation is as follows: To facilitate operation, industrial enterprises use a large number of valves in the pipeline network of their production facilities. However, most valve leaks occur at the stuffing box. The reciprocating motion of the valve stem in the stuffing box and insufficient pressure from the packing against the stem and the inner wall of the stuffing box lead to media leakage at the stuffing box. Rapid sealing technology can effectively and quickly seal leaks (leaks from valve flanges or glands are treated as flange leaks). The rapid sealing technology, combined with a multi-purpose clamp, injects sealant into the leaking stuffing box to seal it. The powerful thrust fills the gaps between the original packing layers with sealant, pushing the original packing to create a new compressive force between the valve stem and the stuffing box wall, establishing a new sealing pressure and sealing the leak. Confirm the height and wall thickness of the valve stuffing box; Leak sealing of stuffing boxes with wall thickness > 10 mm A φ10.5 mm bottom hole can be drilled in the middle of the stuffing box near the side of the valve body; Drilling depth 8-9 mm, tapped with an M12 tapping hammer; Install the injection valve, open the stopcock, and use a φ4 mm long rod drill bit to drill through the remaining part to draw out the medium; Close the injection valve, connect the high-pressure glue gun, inject the sealant, and simultaneously open the injection valve handle. After observing the effect and stopping the leak, remove the high-pressure glue gun and close the injection valve; Leak sealing of stuffing boxes with a wall thickness of <10 mm; A notch is positioned in the lower middle part of the stuffing box to allow it to fit with the multi-purpose clamp bolt; Install the injection valve on the multi-purpose clamp bolt and open the injection valve stopcock; The clamp bolt is embedded in the positioning socket, and the fastening bolt clamps the stuffing box wall; Using a φ4mm long drill bit, drill through the stuffing box wall through the injection valve to draw out the medium and close the injection valve. Connect the injection valve to the high-pressure dispensing gun, inject the sealant and open the injection valve at the same time, move the valve handle to eliminate leakage; After observing the effect and stopping the leak, remove the high-pressure glue gun and close the injection valve stopcock; Before injecting the sealant, loosen the valve gland bolts by 0.5 to 1 turn. After the sealant has sealed the leak, return the loosened gland bolts to their original position to ensure the sealing pressure of the sealant within the stuffing box. After the stuffing box leak is sealed, the multi-purpose clamp can only be removed after the sealant has fully cured; Finally, the precautions for rapid sealing are as follows: During the sealing operation, the rigging screws must be tightened firmly; ensure that there is no slippage between the rigging strap and the rigging itself; The pressure of the high-pressure oil pump should be controlled below 28 MPa; If you hear a "crackling" sound from the rigging straps breaking during the pressurization process, you should stop pressurizing immediately. During the sealing operation, the products do not have a fixed fit relationship, so as to facilitate rapid on-site assembly; The application methods for this product are not limited to the specific examples mentioned above. They can be further refined in production practice. For example, by using rigging with clamps, leaks in elbows, tees, reducers, straight pipes, expansion joints, tanks, and other parts can be sealed with significant results.

[0028] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A flexible, rapid containment and rescue device for hazardous chemical spills, comprising: The package includes a high-quality manual high-pressure oil pump (1), a gauge base connector (2), a pressure gauge (3), a quick-connect connector (4), a high-pressure hose (5), an automatic reset continuous injection gun (6), a locking tool (7), and a flange sealing sleeve (8). The high-quality manual high-pressure oil pump (1) is connected to the pressure gauge (3) and the quick-connect connector (4) through the gauge base structure (2). The quick-connect connector (4) is connected to one end of the high-pressure hose (5), and the other end of the high-pressure hose (5) is connected to the automatic reset continuous injection gun (6). The locking tool (7) is connected to the automatic reset continuous injection gun (6) and the flange sealing sleeve (8). The package is characterized by: The locking tool (7) also includes a locking belt, a front lock, a rear lock, a locking tensioner, a sealing slider, a copper pressure plate, a sealing strip, a set screw, and related flange sealing sleeves, straight pipe sealing sleeves, elbow sealing sleeves, root sealing, tank body sealing, and valve stuffing box sealing positions for coordinated sealing.

2. The flexible rapid containment and rescue device for hazardous chemical leaks according to claim 1, characterized in that: The flange of the flange sealing sleeve (8) can be divided into elliptical / square flange, misaligned flange, reducer flange, tank manhole flange, which is suitable for rapid sealing of leakage in different parts of various production devices.

3. A flexible and rapid containment and rescue device for hazardous chemical leaks according to claim 1, characterized in that: The pipelines of the various production devices can be divided into straight pipes, elbows, tees, reducing pipes, and fixed connections with locking tools (7).

4. A flexible and rapid containment and rescue device for hazardous chemical leaks according to claim 1, characterized in that: The flexible rapid rescue device can seal leaks of various shapes, such as holes, cracks, sand holes, and threads, in flanges, pipes and fittings, elbows, tanks, valves, stuffing boxes, etc. of different sizes and specifications. It is especially effective at difficult locations such as the base of the tank, irregularly shaped flanges such as square or oval ones, and threaded joints. It is not affected by the material of the leaking part and can quickly seal various metal and non-metal devices.

5. A flexible and rapid containment and rescue device for hazardous chemical leaks according to claim 1, characterized in that: The flexible rapid rescue device can seal leaks of various media, including gaseous and liquid media such as hazardous chemicals (especially highly corrosive, toxic, flammable, explosive, high-temperature and high-pressure media, such as chlorine, butadiene, condensate oil, ethanol, ammonia, water vapor, etc.).

6. A flexible and rapid containment and rescue device for hazardous chemical leaks according to claim 1, characterized in that: The flexible rapid rescue device is applicable to the following process conditions: Leakage medium temperature: -195℃ to 900℃; Leakage medium pressure: Vacuum - 20MPa (200kg / cm²) 2 ).