Chemical reaction pipeline explosion emergency protection device and protection method thereof

Abstract

The application discloses an emergency protection device for chemical reaction pipeline explosion, which comprises an inner explosion-proof sleeve, a chemical reaction pipeline penetrating through the inner explosion-proof sleeve, an outer mounting sleeve sleeved with the inner explosion-proof sleeve, a buffer mechanism assembled and connected between the inner explosion-proof sleeve and the outer mounting sleeve, a spring assembly fixedly connected to the inner explosion-proof sleeve and fixedly connected to the inner side wall of the outer mounting sleeve, and a fire extinguishing agent spraying mechanism. The fire extinguishing agent spraying mechanism comprises a plurality of filler pipes filled with fire extinguishing agent and arranged between the chemical reaction pipelines, and a plurality of spring plug assemblies arranged on the filler pipes. The device realizes the damping movement of the spring assembly to continuously reduce the explosion energy, the spring plug assemblies are immediately ejected from the filler pipes, the fire extinguishing agent with a certain pressure is sprayed out of the filler pipes and quickly acts on the burning organic solvent to extinguish the fire. The application also discloses a protection method of the device.

Description

Technical Field

[0001] This invention relates to the field of explosion protection technology for chemical reaction pipelines, and more particularly to an emergency protection device and method for explosion protection of chemical reaction pipelines. Background Technology

[0002] Chemical reactions are an important part of chemical production. Specifically, chemical reactions involve reacting materials used to produce chemical products in containers such as reaction kettles.

[0003] In chemical reaction processes, reactants, solvents, and other liquid materials are first pumped into the reactor through pipelines installed within the workshop. Therefore, the safety performance of the pipelines used for pumping materials is crucial for improving production safety.

[0004] Specifically, during the production process, the organic solvents pumped are flammable and explosive materials, and they often have low flash points and high explosiveness. If a spark occurs in the pipeline during the pumping process (in actual production, the spark is formed due to static electricity on the pipeline), the organic solvent being transported in the pipeline will immediately explode.

[0005] Since most pipes are made of metal, an explosion causes pipe fragments to scatter. Firstly, the high-energy fragments can easily cause other pipes to rupture, and solvents under certain pressure can easily gush out. Secondly, the explosion can ignite organic solvents, which can easily ignite other normal pipes, especially those that ruptured after the impact, triggering a chain reaction of explosions.

[0006] Based on this, in order to improve the safety of solvent pumping in chemical pipelines, Chinese Patent Publication No. CN217273581U discloses an explosion-proof safety system for chemical pipelines. This system mainly includes a pressure gauge for detecting pipeline pressure and a shut-off valve. The pressure gauge is installed on the pipeline and connected to a controller signal, which in turn is connected to the shut-off valve. A detection device is also installed on the pipeline, comprising a detection mechanism and a warning mechanism. The detection mechanism is installed on the pipeline, and the warning mechanism is installed on a shock-absorbing support. The detection mechanism drives the warning mechanism via a linkage rod, and the expansion component in the warning mechanism inflates the air bladder to issue a leak warning.

[0007] However, existing technologies, such as the technical solutions disclosed in the aforementioned patents, all handle the situation through early warning, that is, when the pipeline experiences abnormal pressure, an alarm system is used to handle it.

[0008] In actual production processes, early warning systems are simply insufficient to handle emergencies in a timely manner, such as pipeline explosions. Pipeline explosions are often characterized by short explosion times, unpredictable blast locations, and high sporadic, unpredictable occurrences. Once an explosion triggers a chain reaction, it inevitably leads to serious production accidents. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to provide an emergency protection device for chemical reaction pipeline explosions.

[0010] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0011] An emergency protection device for explosion of a chemical reaction pipeline includes an inner explosion-proof sleeve through which the chemical reaction pipeline passes.

[0012] The inner explosion-proof sleeve is fitted with an outer mounting sleeve;

[0013] The inner explosion-proof sleeve and the outer mounting sleeve are assembled and connected by a buffer mechanism;

[0014] The buffer mechanism includes a spring assembly fixedly connected to the inner explosion-proof sleeve, and the spring assembly is fixedly connected to the inner sidewall of the outer mounting sleeve.

[0015] The emergency protection device for explosions in chemical reaction pipelines also includes a fire extinguishing agent spraying mechanism;

[0016] The fire extinguishing agent spraying mechanism includes several filler tubes filled with fire extinguishing agent, and the filler tubes are arranged between chemical reaction pipelines;

[0017] The packing tube is equipped with several spring plug assemblies. When the chemical reaction pipeline explodes, the spring plug assemblies automatically pop open, releasing the fire extinguishing agent inside the packing tube.

[0018] Preferably, end caps are respectively assembled and connected to the front and rear ends of the outer mounting sleeve;

[0019] During operation, when a chemical reaction pipeline explodes, the explosion impact causes pipeline fragments and burning organic solvents to strike the inner explosion-proof sleeve. The inner explosion-proof sleeve then violently sways inside the outer mounting sleeve. During this swaying process, the damping motion of the spring assembly continuously reduces the explosive energy.

[0020] During the explosion, under the action of the high-temperature burning organic solvent, the spring plug assembly immediately loses its supporting force and is ejected from the packing tube. The extinguishing agent with a certain pressure is sprayed outward from the packing tube and quickly acts on the burning organic solvent to extinguish the fire.

[0021] With the protection of the inner explosion-proof sleeve and the outer mounting sleeve, the impact force generated by the explosion is blocked, protecting the remaining pipelines and chemical reaction equipment in the production workshop.

[0022] The left and right sides of the end cover plate are fastened to the outer mounting sleeve by several fastening screws.

[0023] Preferably, the rear end of the packing tube is connected to a pumping pipe for pumping extinguishing agent; the pumping pipe passes through the end cover plate.

[0024] The pump feed pipe is equipped with a pump feed nozzle pipe, and a valve is also equipped with and connected to the pump feed pipe.

[0025] Preferably, the spring assembly includes a plurality of upper springs fixedly connected to the top of the inner explosion-proof sleeve;

[0026] The upper spring is fixedly connected to the top inside the outer mounting sleeve;

[0027] The bottom of the inner explosion-proof sleeve is fixedly connected to several lower springs, which are fixedly connected to the bottom position inside the outer mounting sleeve.

[0028] During operation, the damping action of the upper and lower springs buffers the explosive energy, especially the high-energy fragments that impact the inner explosion-proof sleeve, preventing the fragments from splashing and impacting other pipes and reactor equipment, thus avoiding secondary chain explosions.

[0029] Preferably, a plurality of side springs are fixedly connected to the left and right side walls of the inner explosion-proof sleeve, and the side springs are fixedly connected to the left and right side walls inside the outer mounting sleeve.

[0030] Preferably, the filler tube has a plurality of spray holes, and the spring plug assembly is assembled and connected to the spray holes.

[0031] Preferably, the spring plug assembly includes a rubber sealing plug pressed into the nozzle;

[0032] A spring is fixedly connected to the bottom of the rubber sealing plug, and the bottom of the spring is fixedly connected to the bottom position inside the packing tube.

[0033] Preferably, the spring plug assembly further includes a fusible rod fixedly connected to the top of the rubber sealing plug, and the fusible rod is fixedly connected to the inner explosion-proof sleeve.

[0034] During operation, under high temperature and heat, the fuse rod melts quickly. Under the elastic force of the spring, the rubber sealing plug that is pressed and sealed on the spray hole is quickly opened, and the extinguishing agent with a certain pressure, such as dry powder extinguishing agent, is quickly sprayed from the spray hole to extinguish the fire.

[0035] Preferably, the top of the outer mounting sleeve is fixedly connected with a plurality of suspension mounting screws.

[0036] This invention also discloses a protection method based on the above-mentioned emergency protection device for chemical reaction pipeline explosions, comprising the following steps:

[0037] (1) When a chemical reaction pipeline explodes, the pipeline fragments and burning organic solvents impact the inner explosion-proof sleeve under the impact force of the explosion. The inner explosion-proof sleeve swings violently inside the outer installation sleeve. During the swinging process, the explosion energy is continuously reduced by the damping motion of the spring assembly.

[0038] (2) During the explosion, under the action of the organic solvent burning at high temperature, the spring plug assembly immediately loses its supporting force and is ejected from the packing tube. The extinguishing agent with a certain pressure is sprayed outward from the packing tube and quickly acts on the burning organic solvent to extinguish the fire.

[0039] (3) Under the protection of the inner explosion-proof sleeve and the outer installation sleeve, the impact force generated by the explosion is blocked, and the remaining pipelines and chemical reaction equipment in the production workshop are protected.

[0040] The present invention has the following advantages over the prior art:

[0041] 1. During operation, if a pipeline explodes, the explosion impact force will cause pipeline fragments and burning organic solvents to impact the inner explosion-proof sleeve. The inner explosion-proof sleeve will then violently sway inside the outer mounting sleeve. During this swaying process, the damping motion of the spring assembly will continuously reduce the explosion energy.

[0042] Specifically, the damping action of the upper spring, lower spring, and side springs buffers the explosive energy, especially the high-energy fragments that impact the inner explosion-proof sleeve, preventing the fragments from splashing and impacting other pipes and reactor equipment, thus avoiding secondary chain explosions.

[0043] 2. With the protection of the inner explosion-proof sleeve and the outer mounting sleeve, the impact of the explosion is contained, protecting the remaining pipelines and chemical reaction equipment in the production workshop. Specifically, under the double protection, the flames of the explosion and combustion are confined within the cavities of the inner explosion-proof sleeve and the outer mounting sleeve. This prevents the fire from spreading uncontrollably and ensures that the explosion and combustion remain localized, facilitating firefighting in the shortest possible time.

[0044] 3. During the explosion process, under the action of the high-temperature burning organic solvent, the rubber sealing plug immediately loses the supporting force of the fused rod, and under the elastic restoring force of the spring, it is quickly ejected from the spray hole. The extinguishing agent with a certain pressure is sprayed outward from the spray hole on the packing tube, and quickly acts on the burning organic solvent to extinguish the fire.

[0045] This method utilizes the explosive and thermal characteristics of the pipeline, using the high temperature generated by the explosion to promote the spraying of extinguishing materials, thereby enabling the rapid and concentrated spraying of fire that is contained within the inner and outer installation sleeves for fire suppression. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0047] Figure 2 This is a schematic diagram of the structure in which the spring assembly is fixedly connected to the inner explosion-proof sleeve in an embodiment of the present invention;

[0048] Figure 3 This is a schematic diagram of the spring assembly in an embodiment of the present invention;

[0049] Figure 4 This is a schematic diagram of the spring plug assembly in an embodiment of the present invention;

[0050] Figure 5 This is a schematic diagram of the structure of the inner explosion-proof sleeve for fixing the lower spring in an embodiment of the present invention;

[0051] Figure 6 This is an embodiment of the present invention. Figure 1 A structural diagram from another perspective;

[0052] Figure 7 This is an embodiment of the present invention. Figure 1 Top view. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0054] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0055] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0056] Example 1

[0057] like Figure 1-7As shown, an emergency protection device for chemical reaction pipeline explosions includes an inner explosion-proof sleeve 2 (the inner explosion-proof sleeve 2 is made of an alloy material such as aluminum alloy, and its inner wall is coated with a high-temperature resistant material using existing methods), through which the installed chemical reaction pipeline 4 passes. Simultaneously, an outer mounting sleeve 1 (made of an alloy material such as aluminum alloy) is fitted onto the inner explosion-proof sleeve 2; the longitudinal cross-sectional shape of the inner explosion-proof sleeve 2 is rectangular.

[0058] The inner explosion-proof sleeve 2 and the outer mounting sleeve 1 are connected by a buffer mechanism; specifically, the buffer mechanism includes a spring assembly fixedly connected to the inner explosion-proof sleeve 2, and the spring assembly is fixedly connected to the inner side wall of the outer mounting sleeve 1.

[0059] Specifically, the spring assembly includes several upper springs 21 fixedly connected to the top of the inner explosion-proof sleeve 2; the upper springs 21 are fixedly connected to the top of the outer mounting sleeve 1;

[0060] Similarly, the bottom of the inner explosion-proof sleeve 2 is fixedly connected with several lower springs 23, which are fixedly connected to the bottom position inside the outer mounting sleeve 1.

[0061] Similarly, several side springs 22 are fixedly connected to the left and right side walls of the inner explosion-proof sleeve 2, and the side springs 22 are fixedly connected to the left and right side walls inside the outer mounting sleeve 1.

[0062] During operation, if pipe 4 explodes, the explosive impact will cause fragments of pipe 4 and burning organic solvents to impact the inner explosion-proof sleeve 2. The inner explosion-proof sleeve 2 will then violently sway inside the outer mounting sleeve 1. During this swaying process, the damping motion of the spring assembly will continuously reduce the explosive energy.

[0063] Specifically, under the damping action of the upper spring 21, the lower spring 23, and the side spring 22, the explosive energy, especially the high kinetic energy fragments that impact the inner explosion-proof sleeve 2, is buffered to prevent the fragments from splashing and impacting other pipes 4 and reaction vessel equipment, thus preventing secondary chain explosions.

[0064] Meanwhile, under the protection of the inner explosion-proof sleeve 2 and the outer mounting sleeve 1, the impact force generated by the explosion is blocked, protecting the remaining pipelines and chemical reaction equipment in the production workshop. Specifically, under the double protection, the flames of the explosion and combustion are confined within the cavities of the inner explosion-proof sleeve 2 and the outer mounting sleeve 1. This prevents the fire from spreading uncontrollably and ensures that the explosion and combustion remain localized, facilitating firefighting in the shortest possible time.

[0065] Example 2

[0066] like Figure 1-7As shown, based on the structure of Example 1, in order to quickly extinguish the hot flames when the package explodes, the above-mentioned emergency protection device for chemical reaction pipeline explosion also includes a fire extinguishing agent spraying mechanism.

[0067] Specifically, the extinguishing agent spraying mechanism includes several filler tubes 5 filled with extinguishing agent (in accordance with existing conventional methods, the extinguishing agent can be a dry powder extinguishing agent), and the filler tubes 5 are arranged between the chemical reaction pipelines 4.

[0068] Meanwhile, several spring plug assemblies are installed on the packing tube 5. When the chemical reaction pipeline 4 explodes, the spring plug assemblies automatically pop open, releasing the fire extinguishing agent in the packing tube 5.

[0069] Specifically, the front and rear ends of the aforementioned outer mounting sleeve 1 are respectively fitted with end cover plates 31 (the left and right sides of the end cover plates 31 are fastened to the outer mounting sleeve 1 by several fastening screws); the rear end of the packing tube 5 is connected to the pumping material extinguishing agent pumping pipe 51; the pumping material pipe passes through the end cover plate 31; the pumping material pipe 51 is fitted with a pumping nozzle pipe, and the pumping material pipe 51 is fitted with a valve.

[0070] When installing pipe 4, the extinguishing agent is pumped into the packing pipe 5. In order to maintain a certain pressure in the packing pipe 5, nitrogen gas at a certain pressure can be pumped into the packing pipe 5 in the existing manner, and then the valve is closed.

[0071] Specifically, the filler tube 5 has several spray holes, and the spring plug assembly is assembled and connected to the spray holes. The spring plug assembly includes a rubber sealing plug 62 that is pressed into the spray hole (the elastic compression of the rubber sealing plug 62 improves the sealing performance and increases the friction force under elastic compression to resist the pressure of the filler tube 5, ensuring that the rubber sealing plug 62 seals the spray hole under normal conditions).

[0072] Meanwhile, a spring 61 is fixedly connected to the bottom of the rubber sealing plug 62, and the bottom of the spring 61 is fixedly connected to the bottom position inside the packing tube 5. Under normal circumstances, the spring 61 is in a compressed state. The spring plug assembly also includes a fusible rod 621 fixedly connected to the top position of the rubber sealing plug 62, and the fusible rod 621 is fixedly connected to the inner explosion-proof sleeve 2 (specifically, the fusible rod 621 provides contact pressure to the rubber sealing plug 62 to prevent the rubber sealing plug 62 from ejecting).

[0073] The 621 fuse rod is made of a material that is easy to melt at high temperatures, such as plastic.

[0074] During the explosion, under the action of the organic solvent burning at high temperature, the rubber sealing plug 62 immediately loses the supporting force of the fusible rod 621, and under the elastic restoring force of the spring 61, it is quickly ejected from the spray hole. The extinguishing agent with a certain pressure is sprayed outward from the spray hole on the packing tube 5 and quickly acts on the burning organic solvent to extinguish the fire.

[0075] This method utilizes the explosive and heat characteristics of the fundamental pipeline 4, and uses the high temperature generated by the explosion to promote the spraying of fire extinguishing materials, thereby achieving rapid and concentrated spraying of fire extinguishing agents to contain the burning fire within the inner and outer installation sleeves 1.

[0076] Example 3

[0077] like Figure 1-7 As shown, in this embodiment, based on the structure of Embodiment 1, several suspension mounting screws 11 are fixedly connected to the top of the outer mounting sleeve 1. Specifically, several threaded tube seats with front and rear spacing are fixedly connected to the left and right sides of the top of the outer mounting sleeve 1, and are fixed by threading the suspension mounting screws 11 to the threaded tube seats. Furthermore, the suspension mounting screws 11 are adjusted and locked to the ceiling of the workshop by means of tools such as wrenches, using the hexagonal protrusions on the suspension mounting screws 11.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An emergency protection device for explosions in chemical reaction pipelines, characterized in that, Including an internal explosion-proof sleeve, the chemical reaction pipeline passes through the location of the internal explosion-proof sleeve; The inner explosion-proof sleeve is fitted with an outer mounting sleeve; The inner explosion-proof sleeve and the outer mounting sleeve are assembled and connected by a buffer mechanism; The buffer mechanism includes a spring assembly fixedly connected to the inner explosion-proof sleeve, and the spring assembly is fixedly connected to the inner side wall of the outer mounting sleeve; The spring assembly includes several upper springs fixedly connected to the top of the inner explosion-proof sleeve; the upper springs are fixedly connected to the top of the outer mounting sleeve; several lower springs are fixedly connected to the bottom of the inner explosion-proof sleeve, and the lower springs are fixedly connected to the bottom of the outer mounting sleeve; several side springs are fixedly connected to the left and right side walls of the inner explosion-proof sleeve, and the side springs are fixedly connected to the left and right side walls of the outer mounting sleeve. Emergency protection devices for chemical reaction pipeline explosions also include fire extinguishing agent spraying mechanisms; The extinguishing agent spraying mechanism includes several packing tubes filled with extinguishing agent, which are installed between chemical reaction pipelines; several spring plug assemblies are installed on the packing tubes. When the chemical reaction pipeline explodes, the spring plug assemblies automatically pop open, releasing the extinguishing agent in the packing tubes; The packing tube has several spray holes, and the spring plug assembly is assembled and connected to the spray holes. The spring plug assembly includes a rubber sealing plug that is pressed into the spray hole. A spring is fixedly connected to the bottom of the rubber sealing plug, and the bottom of the spring is fixedly connected to the bottom position inside the packing tube. The spring plug assembly also includes a fusible rod fixedly connected to the top position of the rubber sealing plug, and the fusible rod is fixedly connected to the inner explosion-proof sleeve.

2. The emergency protection device for chemical reaction pipeline explosions according to claim 1, characterized in that, End caps are respectively assembled and connected to the front and rear ends of the outer mounting sleeve; The left and right sides of the end cover plate are fastened to the outer mounting sleeve by several fastening screws.

3. The emergency protection device for chemical reaction pipeline explosions according to claim 2, characterized in that, The rear end of the packing tube is connected to the pumping material extinguishing agent pumping pipe; the pumping material pipe passes through the end cover plate. The pump feed pipe is equipped with a pump feed nozzle pipe, and a valve is also equipped with and connected to the pump feed pipe.

4. The emergency protection device for chemical reaction pipeline explosions according to claim 1, characterized in that, The top of the outer mounting sleeve is fixedly connected with several suspension mounting screws.

5. The protection method of the emergency protection device for chemical reaction pipeline explosions according to any one of claims 1-4, characterized in that, Includes the following steps: (1) When a chemical reaction pipeline explodes, the pipeline fragments and burning organic solvents impact the inner explosion-proof sleeve under the impact force of the explosion. The inner explosion-proof sleeve swings violently inside the outer installation sleeve. During the swinging process, the explosion energy is continuously reduced by the damping motion of the spring assembly. (2) During the explosion, under the action of the organic solvent burning at high temperature, the spring plug assembly immediately loses its supporting force and is ejected from the packing tube. The extinguishing agent with a certain pressure is sprayed outward from the packing tube and quickly acts on the burning organic solvent to extinguish the fire. (3) Under the protection of the inner explosion-proof sleeve and the outer installation sleeve, the impact force generated by the explosion is blocked, and the remaining pipelines and chemical reaction equipment in the production workshop are protected.

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