A hazardous chemical leakage emergency treatment device

Abstract

The present invention relates to the field of hazardous chemical emergency treatment equipment, and in particular to a hazardous chemical leakage emergency treatment device. It includes a leakage blocking frame, a purification cylinder and a recovery cylinder; the leakage blocking frame includes a frame body; a leakage blocking part, a sealing part and a recovery part are arranged on the frame body; the leakage blocking part sprays out refrigerant and covers the leak; the sealing part surrounds the leakage blocking part and forms a seal; the recovery part recovers the leaked hazardous chemicals; the purification cylinder includes a cylinder body; a buffer chamber, a refrigeration chamber and a purification chamber are arranged in sequence from top to bottom in the cylinder body, and a purification auxiliary component is also arranged in the cylinder body; the buffer chamber is connected to the recovery part; the refrigeration chamber is connected to the leakage blocking part; the purification chamber is connected to the recovery cylinder. The present invention effectively prevents the spread of leakage through leak-proof treatment, recovery, adsorption, cooling and purification treatment, reduces the incidence of safety accidents such as explosion and combustion, and reduces the harm of hazardous chemicals to the refinery environment and people.

Description

Technical Field

[0001] The present invention relates to the field of hazardous chemical emergency treatment equipment, and in particular to a hazardous chemical leakage emergency treatment device. Background Art

[0002] Refineries use a large number of hazardous chemicals, such as crude oil, natural gas, hydrogen, hydrogen sulfide, and carbon monoxide, during their production processes. These chemicals are flammable, explosive, toxic, and hazardous. Leaks pose serious risks to personnel, equipment, and the environment. For example, hazardous chemical leaks can cause casualties such as poisoning, asphyxiation, and burns. Leaked hazardous chemicals can contaminate soil, water, and air, causing long-term ecological impacts. Specific causes of hazardous chemical leaks include: Refinery equipment is complex and operates under harsh conditions such as high temperature, high pressure, and corrosion. This can lead to equipment aging, damage, or failure, potentially causing hazardous chemical leaks. Operators can cause hazardous chemical leaks through improper operation, negligence, or violations of operating procedures. Flaws or shortcomings in refinery design, such as inappropriate equipment selection and inefficient process flows, can increase the risk of hazardous chemical leaks. Natural disasters such as earthquakes, floods, and typhoons can damage refinery facilities, leading to hazardous chemical leaks.

[0003] A Chinese patent document with authorization publication number CN114904366B discloses a high-efficiency emergency treatment device for leakage of gaseous hazardous chemicals, which includes: a main reactor, which includes: an outer shell, which is a cylindrical structure, and a spray absorption layer is provided on the upper part of the outer shell; and a sleeve, which is coaxially arranged in the outer shell and is located below the spray absorption layer, the lower end of the sleeve is connected to the outer shell, the upper end of the inner cylinder of the sleeve is connected to the spray absorption layer, and a plurality of through holes are provided on the side wall of the inner cylinder; a Venturi reactor, which is inclined downward and passes through the outer cylinder of the outer shell and the sleeve; and a solid recovery chamber, which is connected to the bottom of the outer shell.

[0004] Existing emergency response devices for hazardous chemical leaks suffer from the following shortcomings: While emergency response methods primarily focus on purifying the hazardous chemicals, the leak remains. If left untreated, it will continue to leak, leading to the continued spread of hazardous chemicals and potentially causing safety accidents. Furthermore, hazardous chemicals in refineries contain high levels of oil, as well as fluid, volatile, and flammable components. Therefore, a single purification method is limited in its effectiveness in emergency response to hazardous chemical leaks. Summary of the Invention

[0005] In response to the problems existing in the background technology, a hazardous chemical leakage emergency treatment device is proposed. Through leak prevention treatment, recovery, adsorption, cooling and purification treatment, it can effectively prevent the leakage and spread, reduce the incidence of safety accidents such as explosion and combustion, and alleviate the harm of hazardous chemicals to the refinery environment and people.

[0006] The present invention proposes an emergency treatment device for hazardous chemical leakage, comprising a leakage blocking rack, a purification cylinder and a recovery cylinder connected in sequence; the leakage blocking rack comprises a frame body that is detachably installed at the leakage location; a leakage blocking part, a sealing part and a recovery part are arranged on the mounting surface of the frame body; the leakage blocking part sprays refrigerant to cool and freeze the leakage location on the one hand, and covers the leakage location to prevent the spread of hazardous chemicals on the other hand; the sealing part surrounds the leakage blocking part and forms a seal by fitting with the leakage location; the recovery part uses negative pressure adsorption to recover the leaked hazardous chemicals; the purification cylinder comprises a cylinder body; a buffer chamber, a refrigeration chamber and a purification chamber are arranged in sequence from top to bottom in the cylinder body, and a purification auxiliary component that passes through the buffer chamber, the refrigeration chamber and the purification chamber is also arranged in the cylinder body; the buffer chamber is connected to the recovery part through pipe one; the refrigeration chamber is connected to the leakage blocking part through pipe two; purification liquid is arranged in the purification chamber, and is connected to the recovery cylinder through pipe three.

[0007] Preferably, the frame is a U-shaped structure and is connected to the pipeline by snap-fitting; the recovery component is located on both sides of the outer wall of the frame; the leakage blocking component is located at the top of the inner wall of the frame; the sealing component is arranged along the inner wall of the frame and extends to the outside of the frame.

[0008] Preferably, the leakage plugging component includes a leak-proof cover; the leak-proof cover is arc-shaped, the convex surface of the leak-proof cover fits the concave surface of the frame, and the concave surface of the leak-proof cover is open; the nozzle is located on the top of the leak-proof cover, and sprays refrigerant toward the opening; the leakage sensor is located on the side wall of the leak-proof cover; multiple groups of leakage sensors are arranged along the side wall of the leak-proof cover, and correspond one-to-one to the nozzles; a refrigeration pipe is arranged inside the frame; the refrigeration pipe is connected to the nozzle and the refrigeration chamber through a pump and a pipe.

[0009] Preferably, the recovery member is a telescopic tube rotatably arranged on the outer wall of the frame; the recovery tube is arranged inside the frame; the recovery tube is connected to the telescopic tube and the buffer chamber through pump 2 and pipeline 2.

[0010] Preferably, the frame, recovery pipe and refrigeration pipe are all made of cold-conducting metal material; the recovery parts correspond to the two sides of the frame, with two groups set on one side; two groups of recovery pipes are set, located on both sides of the refrigeration pipe, and at the same time, the two ends of each group of recovery pipes are respectively connected to the recovery parts on both sides; the frame corresponds to the four groups of recovery parts and is provided with four groups of leakage sensors located in the front, back, left and right.

[0011] Preferably, the sealing member includes a flexible adhesive tape; the flexible adhesive tape is arranged as a U-shaped structure that fits the concave surface of the frame, a through groove surrounding the leak-proof cover is arranged in the middle, and two extended adhesive strips extending out of the frame are formed by setting notches at both ends; an adhesive layer is arranged on the surface of the flexible adhesive tape.

[0012] Preferably, an upper partition plate is provided in the cylinder to separate the buffer chamber and the refrigeration chamber, and a lower partition plate is also provided to separate the refrigeration chamber and the purification chamber; corresponding and connected through holes are provided on the upper and lower partition plates; the refrigeration channel passes through the refrigeration chamber, and the two ends are fixed in the upper and lower through holes respectively; a pressure regulating plate is provided in the buffer chamber; a pressure regulating chamber is provided above the pressure regulating plate; the pressure regulating device pressurizes / depressurizes the pressure regulating chamber to drive the pressure regulating plate to move up and down; the leakage blocking member is a retractable structure, the upper end of which is connected to the pressure regulating plate, and the lower end passes through the refrigeration channel and is connected to the purification chamber.

[0013] Preferably, the leakage plugging member includes a mounting base connected to the pressure regulating plate, a telescopic rod connected to the bottom of the purification chamber, and a dredging rod connecting the two; an adsorbent is arranged in the refrigeration channel; the dredging rod passes through the refrigeration channel, and a dredging frame is arranged along the length direction of the refrigeration channel.

[0014] Preferably, multiple groups of telescopic rods are provided, one group is located in the center, and the remaining groups of telescopic rods are arranged around the telescopic rods of the central group; the stirring outer ring is sleeved on the telescopic section of the peripheral telescopic rod; the stirring inner ring is located on the telescopic section of the central telescopic rod; the stirring outer ring and the stirring inner ring are connected by a stirring rod to form a stirring structure for mixing the purified liquid.

[0015] Preferably, a spray head is provided on the hole wall of the lower through hole; the spray head absorbs the purification liquid through the suction pipe and the pump, and then sprays it from the lower through hole.

[0016] Compared to existing technologies, the present invention offers the following beneficial technical advantages: a leak-blocking frame is provided, and a leak-proof cover is installed to cover the leaking area after snapping in. Flexible adhesive tape simultaneously adheres to the outer wall of the pipe, creating a sealed environment. Refrigerant is sprayed at the leaking location, cooling the pipe and the gaseous hazardous chemicals, promoting their solidification and freezing, and reducing further leakage and spread. The rotation and extension of the recovery unit allows for targeted recovery, reducing the hazards posed by the gaseous hazardous chemicals. The recovered gaseous hazardous chemicals are cooled by a primary cooling process before entering the purification cylinder. The pressure regulating plate is raised and lowered, and the telescopic rod is simultaneously extended and retracted. The clearing rod moves up and down within the refrigeration channel, stirring the adsorbent to ensure adsorption and circulation. It also promotes pressurization of the gaseous hazardous chemicals through the refrigeration channel for secondary cooling. Finally, it promotes the movement of the stirring mechanism, promoting mixing of the purified liquid and gaseous hazardous chemicals. By creating a sealed environment and preventing leaks at the leaking location, the gaseous hazardous chemicals are then processed through recovery, adsorption, cooling, and purification, ultimately entering the recovery cylinder. The emergency response is simple and efficient, which buys time for leak inspection and repair, effectively prevents the spread of leaks, reduces the incidence of safety accidents such as explosions and combustion, and alleviates the harm of gaseous hazardous chemicals to the refinery environment and people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic structural diagram of the hazardous chemical leakage emergency treatment device of the present invention;

[0018] Figure 2 This is a schematic structural diagram of the leakage blocking frame of the present invention;

[0019] Figure 3 This is a structural schematic diagram of the leakage blocking frame of the present invention with the sealing member removed;

[0020] Figure 4 is a cross-sectional view of the frame of the present invention;

[0021] Figure 5 Schematic diagram of the structure of the sealing member in the present invention;

[0022] Figure 6 is a cross-sectional view of the purification cartridge of the present invention;

[0023] Figure 7 Schematic diagram of the combination of the upper baffle, purification auxiliary component and lower baffle in the present invention (viewing angle 1);

[0024] Figure 8 Schematic diagram of the combination of the upper baffle, purification auxiliary component and lower baffle in the present invention (viewing angle 2);

[0025] Figure 9 for Figure 7 A in the middle is an enlarged schematic diagram;

[0026] Figure 10 Schematic diagram of the stirring structure in the present invention;

[0027] Figure 11 for Figure 8 Enlarged schematic diagram of point B in the middle.

[0028] Reference numerals: 1. Leakage blocking frame; 101. Frame; 102. Sealing member; 10201. Flexible adhesive tape; 10202. Through groove; 10203. Notch; 103. Leakage blocking member; 10301. Leakage cover; 10302. Nozzle; 10303. Leakage sensor 1; 104. Recovery member; 105. Handle; 106. Refrigeration pipe; 107. Recovery pipe; 108. Leakage sensor 2; 2. Purification cylinder; 201. Cylinder body; 202. Buffer chamber; 203. Purification chamber; 204. Pressure regulating device; 20 5. Pressure regulating plate; 206. Buffer spring; 207. Upper partition plate; 208. Refrigeration chamber; 209. Purification auxiliary component; 20901. Mounting seat; 20902. Telescopic rod; 20903. Clearing rod; 20904. Stirring outer ring; 20905. Leakage hole; 20906. Stirring inner ring; 20907. Stirring rod; 20908. Clearing rack; 210. Lower partition plate; 211. Refrigeration channel; 212. Suction tube; 213. Sprinkler head; 3. Recovery cylinder; 4. Pipeline 2; 5. Pipeline 1; 6. Pipeline 3. DETAILED DESCRIPTION

[0029] Example 1, as Figure 1 As shown, the present invention provides an emergency treatment device for hazardous chemical leakage, which includes a leakage blocking frame 1, a purification cylinder 2 and a recovery cylinder 3 connected in sequence.

[0030] like Figure 2 The leakage plugging rack 1 includes a frame 101 that is detachably installed at the leakage site; a leakage plugging component 103, a sealing component 102 and a recovery component 104 are provided on the mounting surface of the frame 101; the leakage plugging component 103 sprays refrigerant to cool and freeze the leakage site on the one hand, and covers the leakage site on the other hand to prevent the diffusion of gaseous hazardous chemicals; the sealing component 102 surrounds the leakage plugging component 103 and forms a seal by fitting with the leakage site; the recovery component 104 uses negative pressure adsorption to recover the leaked hazardous chemical gas.

[0031] like Figure 6 As shown, the purification cylinder 2 includes a cylinder body 201; a buffer chamber 202, a refrigeration chamber 208 and a purification chamber 203 are sequentially arranged in the cylinder body 201 from top to bottom, and a purification auxiliary component 209 is also arranged in the cylinder body 201, which passes through the buffer chamber 202, the refrigeration chamber 208 and the purification chamber 203; the buffer chamber 202 is connected to the recovery component 104 through the pipe 1 5; the refrigeration chamber 208 is connected to the leakage blocking component 103 through the pipe 2 4; the purification liquid is set in the purification chamber 203, and is connected to the recovery cylinder 3 through the pipe 3 6.

[0032] like Figure 3As shown, the frame 101 is a U-shaped structure, which is connected to the pipe by snapping, and a handle 105 is provided on the outer wall; the recovery part 104 is located on both sides of the outer wall of the frame 101; the leakage blocking part 103 is located at the top of the inner wall of the frame 101; the sealing part 102 is arranged along the inner wall of the frame 101 and extends to the outside of the frame 101.

[0033] When a hazardous chemical leaks from a pipeline, it will be detected by nearby leak sensing equipment and a leak warning will be issued to the staff. Before the maintenance personnel arrive, the nearby staff can clamp the frame 101 on the leaking pipeline to carry out emergency treatment.

[0034] like Figure 3-Figure 4 As shown, the leakage plugging component 103 includes a leak-proof cover 10301; the leak-proof cover 10301 is arc-shaped, the convex surface of the leak-proof cover 10301 fits with the concave surface of the frame 101, and the concave surface of the leak-proof cover 10301 is open; the nozzle 10302 is located at the top of the leak-proof cover 10301, spraying refrigerant toward the opening; the leakage sensor 10303 is located on the side wall of the leak-proof cover 10301.

[0035] It should be further explained that multiple groups of leakage sensors 10303 are set along the side wall of the leak-proof cover 10301 and correspond one-to-one to the nozzles 10302.

[0036] It should be further explained that a refrigeration pipe 106 is provided inside the frame 101; the refrigeration pipe 106 is connected to the nozzle 10302 and the refrigeration chamber 208 through the pump 1 and the pipe 1 5.

[0037] Refrigeration chamber 208 is used to store refrigerant, which is dry ice in this case. During emergency response to hazardous chemical leaks, leak shield 10301 covers the pipe, creating a sealed space. Leak sensor 10303 detects pressure changes at different locations to determine the leak's location. Spray nozzles 10302 at corresponding locations spray refrigerant, cooling the pipe and oil, mitigating safety hazards caused by high temperatures. This also reduces the fluidity and volatility of the hazardous chemicals, freezing the oil and fat within them to block leaks, preventing further leakage and buying more time for maintenance personnel.

[0038] like Figure 3-Figure 4 As shown, the recovery member 104 is a telescopic tube rotatably arranged on the outer wall of the frame 101; a recovery pipe 107 is arranged inside the frame 101; the recovery pipe 107 is connected to the telescopic tube and the buffer chamber 202 through the pump 2 and the pipe 2 4.

[0039] Since the recovery part 104 is a rotatable and retractable pipe, the position of the pipe mouth of the retractable pipe can be adjusted according to the location of the leaked hazardous chemicals, so that the leaked hazardous chemicals can be recovered in a targeted manner to avoid further spread of the hazardous chemicals.

[0040] It should be further explained that the frame 101, the recovery pipe 107 and the refrigeration pipe 106 are all made of cold-conducting metal material; the recovery parts 104 correspond to the two sides of the frame 101, with two groups set on one side; two groups of recovery pipes 107 are set, located on both sides of the refrigeration pipe 106, and at the same time, the two ends of each group of recovery pipes 107 are respectively connected to the recovery parts 104 on both sides.

[0041] It should be further explained that the recovery pipe 107 and the refrigeration pipe 106 are arc-shaped pipes arranged in parallel.

[0042] It should be further explained that the frame 101 is provided with four sets of leakage sensors 108 located at the front, back, left and right sides corresponding to the four sets of recovery components 104 .

[0043] Leak sensor 2 108 detects locations with high concentrations of leaking gas, and staff adjust recovery unit 104 to that location for targeted recovery. While refrigerant flows through refrigeration pipe 106, recovery pipe 107 simultaneously recovers leaking hazardous chemicals. Both flow simultaneously through rack 101. The refrigerant cools rack 101 and the hazardous chemical gases. Cooling rack 101 and the hazardous chemicals reduces the risk of leaks, spread, explosions, and combustion.

[0044] like Figure 5 As shown, the sealing member 102 includes a flexible adhesive tape 10201; the flexible adhesive tape 10201 is configured as a U-shaped structure that fits the concave surface of the frame 101, with a through groove 10202 surrounding the leak-proof cover 10301 in the middle, and two extended adhesive strips extending out of the frame 101 are formed by setting notches 10203 at both ends.

[0045] It should be further explained that an adhesive layer is provided on the surface of the flexible adhesive tape 10201 .

[0046] It should be further explained that a release layer is provided on the surface of the adhesive layer.

[0047] During emergency repairs, the release layer is removed. Leak-proof cover 10301 covers the leak, while flexible adhesive tape 10201 adheres to the outer wall of the pipe. The worker then wraps the extended adhesive layer around the pipe along its length, further sealing it and minimizing the spread of the leak, buying time for repairs.

[0048] like Figure 6-Figure 8As shown, an upper partition plate 207 is provided within the cylinder 201, separating the buffer chamber 202 from the refrigeration chamber 208. A lower partition plate 210 is also provided, separating the refrigeration chamber 208 from the purification chamber 203. Both the upper partition plate 207 and the lower partition plate 210 are provided with corresponding, interconnecting through-holes. A refrigeration channel 211 extends through the refrigeration chamber 208, with its ends secured in the upper and lower through-holes, respectively. A pressure regulating plate 205 is provided within the buffer chamber 202. A pressure regulating chamber is provided above the pressure regulating plate 205. A pressure regulating device 204 pressurizes and depressurizes the pressure regulating chamber, driving the pressure regulating plate 205 to move up and down.

[0049] It should be further explained that a buffer spring 206 is provided in the pressure regulating chamber to act on the pressure regulating plate 205 .

[0050] It should be further explained that the leakage blocking member 103 is a retractable structure, with the upper end connected to the pressure regulating plate 205 and the lower end passing through the refrigeration channel 211 and then connected to the purification chamber 203.

[0051] When the recovered leaked hazardous chemical gas enters the buffer chamber 202, the pressure in the pressure regulating chamber changes, causing the pressure regulating plate 205 to move up and down. This movement of the pressure regulating plate 205 pressurizes the recovered hazardous chemical, forcing it to pass through the cooling channel 211. This movement also causes the leakage plugging member 103 to expand and contract. This expansion and contraction of the leakage plugging member 103 clears the cooling channel 211 and stirs the purified liquid.

[0052] like Figure 6-Figure 9 As shown, the leak plugging member 103 includes a mounting base 20901 connected to the pressure regulating plate 205, a telescopic rod 20902 connected to the bottom of the purification chamber 203, and a dredging rod 20903 connecting the two. Adsorbent is placed in the cooling channel 211; the dredging rod 20903 penetrates the cooling channel 211, and a dredging bracket 20908 is arranged along the length of the cooling channel 211.

[0053] It should be further explained that the adsorbent is activated carbon granules; the dredging rack 20908 is arranged in a "cross" configuration. When hazardous chemical gases pass through the activated carbon bed, organic pollutants are adsorbed by the micropores on the activated carbon surface, thereby purifying the gas.

[0054] When the pressure regulating plate 205 rises and falls, the telescopic rod 20902 extends and retracts synchronously, the dredging rod 20903 moves up and down in the cooling channel 211, and the dredging frame 20908 stirs the adsorbent, which not only promotes the circulation and refrigeration of the recovered hazardous chemicals, but also ensures the adsorption effect.

[0055] like Figure 10As shown, multiple groups of telescopic rods 20902 are provided, one group is located in the center, and the remaining groups of telescopic rods 20902 are arranged around the central group of telescopic rods 20902; the stirring outer ring 20904 is sleeved on the telescopic section of the peripheral telescopic rod 20902; the stirring inner ring 20906 is located on the telescopic section of the central telescopic rod 20902; the stirring outer ring 20904 and the stirring inner ring 20906 are connected by the stirring rod 20907, forming a stirring structure for mixing the purified liquid.

[0056] It should be further explained that a leakage hole 20905 is provided on the stirring outer ring 20904 for the purification liquid to flow.

[0057] When the pressure regulating plate 205 rises and falls, the telescopic rod 20902 extends and retracts synchronously, and the stirring structure moves up and down synchronously, driving the purified liquid to shake, mixing the purified liquid and the recovered hazardous chemicals, and promoting the purification effect of the purified liquid.

[0058] like Figure 11 As shown, a spray head 213 is provided on the hole wall of the lower through hole; the spray head 213 absorbs the purification liquid through the suction pipe 212 and the pump, and then sprays it from the lower through hole, so that the effect of hazardous chemicals and purification liquid is more thorough and comprehensive.

[0059] Common purification fluids used in refineries include oil-water separators, demulsifiers, and hydrogen sulfide gas leak purifiers. Oil-water separators are primarily used to treat oil leaks in refineries, separating oil and water through physical or chemical methods to purify the environment. These purifiers typically possess excellent emulsifying, dispersing, and flocculating properties, effectively separating leaked oil from water. Demulsifiers are primarily used to treat emulsified oil leaks in refineries. They destabilize the emulsified oil, breaking it into oil and water, facilitating subsequent disposal. Hydrogen sulfide gas leak purifiers react with leaked hydrogen sulfide gas, slowing and controlling its spread, thus buying valuable time for emergency response and evacuation of personnel in the leak area. The choice of purification fluid can be determined based on the actual distribution of hazardous chemicals within the refinery.

[0060] The purified waste gas and waste liquid mixture is transferred to the recovery drum 3 for further processing and testing before being discharged. The recovery drum 3 can be set in multiple groups and stored uniformly on the base for emergency use.

[0061] Example 2: Based on the hazardous chemical leakage emergency treatment device in Example 1, this example proposes a hazardous chemical leakage emergency treatment method, the steps are as follows:

[0062] S1. The leak sensing device detects a hazardous chemical leak in a certain section of the pipeline and issues a leak warning to the staff;

[0063] S2. A nearby worker removes the release layer and places the frame 101 on the leaking pipe. The leak-proof cover 10301 covers the leaking area, and the flexible adhesive tape 10201 adheres to the outer wall of the pipe. The worker then wraps the extended adhesive layer around the pipe along its length to further seal it.

[0064] S3. Leak sensor 10303 determines the leak location; the nozzle 10302 at the corresponding location sprays refrigerant to cool the pipe and hazardous chemicals; leak sensor 2 108 detects the location with a high concentration of leaked gas, and the staff rotates and adjusts the recovery unit 104 to the corresponding position for targeted recovery;

[0065] S4, the refrigeration pipe 106 performs refrigeration, and the recovery pipe 107 recovers the leaked hazardous chemicals simultaneously; through the cooling, the hazardous chemicals are cooled down once;

[0066] S5. Hazardous chemicals enter the buffer chamber 202. The pressure regulating plate 205 rises and falls, the telescopic rod 20902 simultaneously extends and retracts, the dredging rod 20903 moves up and down in the refrigeration channel 211, and the dredging frame 20908 stirs the adsorbent. The hazardous chemicals are pressurized and pass through the refrigeration channel 211. The refrigerant in the refrigeration chamber 208 cools the hazardous chemicals a second time.

[0067] S6. After the spray head 213 absorbs the purification liquid, it sprays it from the through hole below to purify the hazardous chemicals.

[0068] S7: Hazardous chemicals enter the purification chamber 203. The stirring structure moves synchronously with the rise and fall of the pressure regulating plate 205, causing the purified liquid to shake, promoting the mixing of the purified liquid and hazardous chemicals, and performing secondary purification on the hazardous chemicals.

[0069] S8. The purified waste gas and waste liquid mixture is transferred to the recovery drum 3 and discharged after further processing and testing.

[0070] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A hazardous chemical leakage emergency treatment device, characterized in that: It comprises a leak blocking frame (1), a purification cylinder (2) and a recovery cylinder (3) which are connected in sequence; The leakage blocking frame (1) comprises a frame body (101) which is detachably mounted on a leakage site; a leakage blocking member (103), a sealing member (102) and a recovery member (104) are provided on the mounting surface of the frame body (101); the leakage blocking member (103) sprays refrigerant to cool and freeze the leakage site on the one hand, and covers the leakage site on the other hand to prevent the spread of hazardous chemicals; the sealing member (102) surrounds the leakage blocking member (103) and forms a seal by fitting with the leakage site; the recovery member (104) recovers the leaked hazardous chemicals by utilizing negative pressure adsorption; The purification cylinder (2) includes a cylinder (201); a buffer chamber (202), a refrigeration chamber (208) and a purification chamber (203) are sequentially arranged in the cylinder (201) from top to bottom, and a purification auxiliary component (209) is also arranged in the cylinder (201) and passes through the buffer chamber (202), the refrigeration chamber (208) and the purification chamber (203); the buffer chamber (202) is connected to the recovery component (104) through the first pipe (5); the refrigeration chamber (208) is connected to the leakage blocking component (103) through the second pipe (4); a purification liquid is arranged in the purification chamber (203), and is connected to the recovery cylinder (3) through the third pipe (6); The frame (101) is a U-shaped structure and is connected to the pipeline by snapping; the recovery member (104) is located on both sides of the outer wall of the frame (101); the leakage blocking member (103) is located on the top of the inner wall of the frame (101); the sealing member (102) is arranged along the inner wall of the frame (101) and extends to the outside of the frame (101); The leakage blocking member (103) includes a leak-proof cover (10301); the leak-proof cover (10301) is arc-shaped, the convex surface of the leak-proof cover (10301) is in contact with the concave surface of the frame (101), and the concave surface of the leak-proof cover (10301) is open; the nozzle (10302) is located at the top of the leak-proof cover (10301) and sprays refrigerant toward the open opening; the leakage sensor (10303) is located on the side wall of the leak-proof cover (10301); multiple groups of the leakage sensors (10303) are arranged along the side wall of the leak-proof cover (10301), and correspond one to one with the nozzles (10302); A refrigeration pipe (106) is provided inside the frame (101); the refrigeration pipe (106) is connected to the nozzle (10302) and the refrigeration chamber (208) through a pump 1 and a pipe 1 (5); the recovery member (104) is a telescopic pipe rotatably provided on the outer wall of the frame (101); A recovery pipe (107) is provided inside the frame (101); the recovery pipe (107) is connected to the telescopic pipe and the buffer chamber (202) through pump 2 and pipeline 2 (4).

2. The hazardous chemical leakage emergency treatment device according to claim 1, characterized in that: The frame (101), the recovery pipe (107) and the refrigeration pipe (106) are all made of a cold-conducting metal material; The recovery parts (104) correspond to both sides of the frame (101), with two groups arranged on each side; two groups of recovery pipes (107) are arranged, located on both sides of the refrigeration pipe (106), and at the same time, the two ends of each group of recovery pipes (107) are respectively connected to the recovery parts (104) on both sides; The frame (101) is provided with four sets of leakage sensors (108) located at the front, back, left and right sides corresponding to the four sets of recovery parts (104).

3. The hazardous chemical leakage emergency treatment device according to claim 1, characterized in that: The sealing member (102) comprises a flexible adhesive tape (10201); the flexible adhesive tape (10201) is configured as a U-shaped structure that fits the concave surface of the frame (101), a through groove (10202) surrounding the leak-proof cover (10301) is provided in the middle, and notches (10203) are provided at both ends to form two extended adhesive strips extending out of the frame (101); An adhesive layer is provided on the surface of the flexible adhesive tape (10201).

4. The hazardous chemical leakage emergency treatment device according to claim 1, characterized in that: An upper partition plate (207) is provided in the cylinder (201) for separating the buffer chamber (202) and the refrigeration chamber (208), and a lower partition plate (210) is provided for separating the refrigeration chamber (208) and the purification chamber (203); the upper partition plate (207) and the lower partition plate (210) are both provided with corresponding and communicating through holes; a refrigeration channel (211) passes through the refrigeration chamber (208), and both ends are fixed in the upper and lower through holes respectively; A pressure regulating plate (205) is provided in the buffer cavity (202); a pressure regulating chamber is provided above the pressure regulating plate (205); a pressure regulating device (204) pressurizes / depressurizes the pressure regulating chamber to drive the pressure regulating plate (205) to move up and down; The leakage blocking member (103) is a retractable structure, with an upper end connected to the pressure regulating plate (205) and a lower end passing through the refrigeration channel (211) and then connected to the purification chamber (203).

5. The hazardous chemical leakage emergency treatment device according to claim 4, characterized in that: The leakage blocking member (103) comprises a mounting seat (20901) connected to the pressure regulating plate (205), a telescopic rod (20902) connected to the bottom of the purification chamber (203), and a dredging rod (20903) connecting the two. An adsorbent is provided in the refrigeration channel (211); a dredging rod (20903) passes through the refrigeration channel (211), and a dredging frame (20908) is provided along the length direction of the refrigeration channel (211).

6. The hazardous chemical leakage emergency treatment device according to claim 5, characterized in that: The telescopic rods (20902) are arranged in multiple groups, one group is located in the center, and the remaining groups of telescopic rods (20902) are arranged around the central group of telescopic rods (20902); The stirring outer ring (20904) is sleeved on the telescopic section of the peripheral telescopic rod (20902); the stirring inner ring (20906) is located on the telescopic section of the central telescopic rod (20902); the stirring outer ring (20904) and the stirring inner ring (20906) are connected by a stirring rod (20907), forming a stirring structure for mixing the purified liquid.

7. The hazardous chemical leakage emergency treatment device according to claim 4, characterized in that: A spray head (213) is provided on the wall of the through hole at the lower end; the spray head (213) absorbs the purified liquid through the suction pipe (212) and the pump, and then sprays the purified liquid from the through hole below.

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