A passive voltage-controlled intrinsically safe explosive process product collection device

Abstract

The present application relates to the technical field of safety in mining, chemical industry, manufacturing industry processing and the like, and particularly relates to a passive voltage control intrinsically safe explosion process product collecting device, comprising: a high-speed fluid collector, a passive voltage control driving module, a multi-stage series connection assembly and a fixing support, the passive voltage control driving module is located inside the high-speed fluid collector, the high-speed fluid collector is fixed at a sampling position through the fixing support, and a plurality of groups of the high-speed fluid collectors are connected in series through the multi-stage series connection assembly. The passive voltage control intrinsically safe explosion process product collecting device provided by the present application adopts a passive voltage control mode, all components are mechanical structures, and the device cannot induce or cause secondary explosion and the like, effectively compensates for the shortcomings that electronic components are not suitable for high pressure, high temperature and high-speed fluid, the device does not exist explosion, combustion and the like, and intrinsically safe is achieved.

Description

Technical Field

[0001] This invention relates to the field of safety technology in industries such as mining, chemical industry, and manufacturing, and specifically to a passive pressure-controlled intrinsically safe explosion process product collection device. Background Technology

[0002] Gas and dust (coal dust, industrial dust, metal dust, etc.) explosions pose a significant safety hazard to coal mines, chemical plants, and manufacturing industries. The high-pressure shockwave, high-temperature flames, and toxic gases generated by the explosion pose a major threat to enterprise safety and personnel safety. An explosion is a rapidly releasing energy process; the process is highly complex, and the process products are difficult to identify. It is challenging to capture the development process and formed process products through experimental methods. Therefore, current analyses of explosion accidents in various production sectors are limited to post-disaster damage and static residue analysis, and research on the explosion process remains theoretical. Explosion accidents are often accompanied by a chain reaction of "initial explosion - product diffusion - secondary / continuous explosions." The high temperature and pressure generated by the initial explosion ignites unreacted media, and its process products (such as...) Combustible gases and toxic dust can exacerbate the subsequent explosion, posing significant safety hazards to personnel and equipment. Furthermore, due to a lack of precise understanding of the explosion's products, there remains a critical technological gap in accident tracing and risk prediction. While electronic valves can rapidly open and close the air inlet, the intense impact of high temperatures, pressures, and flow rates during an explosion, especially when dust explosions generate or stir up unexploded dust, can easily cause the electronic valve to malfunction, leading to sampling failure. Additionally, electronic valves require corresponding power supplies (or wired external power supplies) and control chips. In explosive environments, particularly when collecting explosion products, close contact with the explosion source can cause the sampling device to explode or induce a secondary explosion, resulting in sampling failure and equipment damage. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this invention provides a passive pressure-controlled intrinsically safe explosion process product collection device, which can effectively solve the problems of existing electronic collection devices being prone to failure in explosive environments, posing safety hazards, and being unable to continuously collect explosion process products.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This invention provides a passive pressure-controlled intrinsically safe explosion process product collection device, comprising: a high-speed fluid collector, a passive pressure-controlled braking module, a multi-stage series connection assembly, and a fixed bracket. The passive pressure-controlled braking module is located inside the high-speed fluid collector, and the high-speed fluid collector is fixed to the sampling position by the fixed bracket. Several groups of the high-speed fluid collectors are connected in series by the multi-stage series connection assembly.

[0006] The high-speed fluid collector includes a sampling chamber, a control chamber, a front cover, and a rear cover. The front end of the sampling chamber is detachably connected to the front cover, and the rear end of the control chamber is detachably connected to the rear cover. A passive pressure control plate is provided inside the control chamber. The front cover has a first double V-shaped air inlet and an air outlet. The air outlet is connected to a connecting valve through a pipeline.

[0007] Furthermore, the sampling chamber and the control chamber are sealed together by a first sealing ring, and the front cover is detachably sealed to the front side of the sampling chamber by a first lateral pin and a second sealing ring; the rear cover is detachably sealed to the rear end of the control chamber by a second lateral pin and a third sealing ring, the top of the front cover is provided with a first threaded hole, and the top of the rear cover is provided with a second threaded hole.

[0008] Furthermore, the passive pressure control braking module includes a plug, a connecting rod, a spring, a guide stabilizer, a connecting rod, and a buckle. The plug is coaxially opposite to the first double V-shaped air inlet. A groove is provided on the front side of the plug, and a fourth sealing ring is embedded in the groove. One end of the connecting rod is fixedly connected to the rear cover, and the other end of the connecting rod is threadedly connected to one side of the guide stabilizer. One end of the connecting rod passes through the spring and the central hole in sequence and is fixedly connected to the plug. A locking position is provided on the connecting rod. The spring is sleeved on the connecting rod and located between the plug and the guide stabilizer. The buckle is provided on the top of the connecting rod, and the locking rod of the buckle contacts the locking position to achieve locking before sampling. The top of the guide stabilizer is provided with a third threaded hole for connection.

[0009] Furthermore, the buckle includes a positioning rod, a locking rod, and a second hinge. The positioning rod is fixedly connected to the top of the connecting fixing rod, and the locking rod is rotatably connected to the positioning rod through the second hinge.

[0010] Furthermore, the multi-stage series connection assembly includes a connecting member, a second double V-shaped air inlet, a third lateral pin, and a fifth sealing ring. The second double V-shaped air inlet is located at the center of the connecting member. Both ends of the connecting member are detachably and sealingly connected to adjacent high-speed fluid collectors. The two ends of the connecting member are detachably and sealingly connected to adjacent high-speed fluid collectors through the third lateral pin and the fifth sealing ring.

[0011] Furthermore, the fixed bracket includes a base, an expansion joint, a grooved fixing platform, and a double-opening sleeve. The expansion joint is fixedly connected to the base, the grooved fixing platform is fixedly connected to the top of the expansion joint, and the double-opening sleeve is hinged to the top of the grooved fixing platform. The expansion joint includes an outer cylinder, an inner cylinder, and a screw thread. The inner cylinder is fitted inside the outer cylinder and fixed by tightening the screw thread.

[0012] Furthermore, the passive pressure control plate is a short L-shaped component, and one end of the passive pressure control plate is rotatably connected to the inner wall of the control cavity through a first hinge. A limiter is fixedly connected to the inner wall of the control cavity, and the limiter is fixedly connected to the passive pressure control plate. Beneficial effects

[0013] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0014] I. The passive pressure-controlled intrinsically safe explosion process product collection device provided by the present invention adopts a passive pressure control method. All components are mechanical structures, which will not induce or cause secondary explosions and other problems. It effectively makes up for the shortcomings of electronic components that are not suitable for high pressure, high temperature and high speed fluids. The device does not have dangerous situations such as explosion or combustion, and achieves intrinsic safety.

[0015] Second, the device provided by this invention realizes multi-level series linkage control, which can realize continuous collection of process products at different stages of the same explosion. At the same time, it can realize collection at any position and any angle through a fixed support, providing new experimental methods and means for subsequent accident reconstruction and explosion process law revelation.

[0016] Third, the device provided by the present invention adopts a modular design, with each connection port using the same standard. It achieves quick connection through threads, pins, etc., which facilitates assembly and disassembly. Valves and pipelines are standardized, with good component interchangeability. The device is easy to clean and has good repeatability.

[0017] Fourth, the device provided by this invention has a simple structure and good stability. The collected fluid can be separated into gas and solid phases and sampled in a closed manner through the gas sampling port. The testing process has zero emissions, ensuring that the collected samples are not contaminated, and realizing the green and environmentally friendly experimental process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1This is a schematic diagram of the structure of a passive pressure-controlled intrinsically safe explosion process product collection device provided by the present invention;

[0020] Figure 2 This is a side view of the high-speed fluid collector in a passive pressure-controlled intrinsically safe explosion process product collection device provided by the present invention;

[0021] Figure 3 This is a front view schematic diagram of the high-speed fluid collector in a passive pressure-controlled intrinsically safe explosion process product collection device provided by the present invention;

[0022] Figure 4 This is a side view of the passive pressure control braking module in a passive pressure-controlled intrinsically safe explosion process product collection device provided by the present invention;

[0023] Figure 5 This is a side view of the multi-stage series sampling structure in a passive pressure-controlled intrinsically safe explosion process product collection device provided by the present invention.

[0024] Reference numerals: 1-High-speed fluid collector; 2-Passive pressure control braking module; 3-Multi-stage series connection assembly; 4-Fixed bracket; 1-1-Sampling chamber; 1-2-Control chamber; 1-3-Front cover; 1-4-Rear cover; 1-5-Passive pressure control plate; 1-6-First sealing ring; 1-3-1-First double V-shaped air inlet; 1-3-2-Air outlet; 1-3-3-Connecting valve; 1-3-4-First lateral pin; 1-3-5-Second sealing ring; 1-3-6-First threaded hole; 1-4-1-Third sealing ring; 1-4-2-Second threaded hole; 1-4-3-Second lateral pin; 1-5-1-Short L-shaped component; 1-5-2-First hinge; 1-5- 3-Limiter; 2-1-Plug; 2-2-Connecting rod; 2-3-Fourth sealing ring; 2-4-Spring; 2-5-Positioning; 2-6-Guide straightener; 2-7-Connecting fixing rod; 2-8-Snap fastener; 2-6-1-Center hole; 2-6-2-Third threaded hole; 2-8-1-Positioning rod; 2-8-2-Bayonet rod; 2-8-3-Second hinge; 3-1-Connecting component; 3-2-Second double V-shaped air inlet; 3-3-Third lateral pin; 3-4-Fifth sealing ring; 4-1-Base; 4-2-Expansion joint; 4-3-Slotted fixing platform; 4-4-Double-opening sleeve with hinge; 4-2-1-Outer cylinder; 4-2-2-Inner cylinder; 4-2-3-Threaded thread. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] The present invention will be further described below with reference to embodiments.

[0027] See Figure 1 This invention provides a passive pressure-controlled intrinsically safe explosion process product collection device, comprising: a high-speed fluid collector 1, a passive pressure-controlled braking module 2, a multi-stage series connection assembly 3, and a fixed bracket 4; the passive pressure-controlled braking module 2 is placed inside the high-speed fluid collector 1 and is threadedly fixed to the rear cover 1-4; the fixed bracket 4 is threadedly fixed to any wall surface of the ground or tunnel, and the high-speed fluid collector 1 is fixed to the slotted fixed platform 4-3 by a hinge sleeve 4-4; the multi-stage series connection assembly 3 is used to provide a sealed connection condition when multiple sets of high-speed fluid collectors 1 are used in series.

[0028] See Figure 2 , Figure 3 The high-speed fluid collector 1 includes at least: a sampling chamber 1-1, a control chamber 1-2, a front cover 1-3, a rear cover 1-4, a passive pressure control plate 1-5, and a first sealing ring 1-6; the rear end of the sampling chamber 1-1 and the front end of the control chamber 1-2 are connected by a threaded seal via the first sealing ring 1-6; the front end of the sampling chamber 1-1 and the front cover 1-3 are connected by a first lateral pin 1-3-4 via a second sealing ring 1-3-5; the rear end of the control chamber 1-2 and the rear cover 1-4 are connected by a second lateral pin 1-4-3 via a third sealing ring 1-4-1; a passive pressure control plate 1-5 is located on the inner side of the control chamber 1-2 near the front end. The passive pressure control plate 1-5 is a short L-shaped component 1-5-1, with one end connected to the inner wall of the control chamber 1-2 via a first hinge. Chain 1-5-2 is fixedly connected, and the other end is connected to buckle 2-8. The passive pressure control plate 1-5 is equipped with limiter 1-5-3. Limiter 1-5-3 is fixed to the inner wall of control cavity 1-2 adjacent to short L-shaped component 1-5-1. The front cover 1-3 has a first double V-shaped air inlet 1-3-1 at the center and an air outlet 1-3-2 at an off-center position. The air outlet 1-3-2 is sealed to control valve 1-3-3 through a pipeline. The first double V-shaped air inlet 1-3-1 and the air outlet 1-3-2 are perpendicular to the axis of the first double V-shaped air inlet 1-3-1 and the air outlet 1-3-2. The outer end face of the front cover has a first threaded hole 1-3-6 to facilitate the assembly and disassembly of the front cover 1-3. The outer end face of the rear cover 1-4 has a second threaded hole 1-4-2 off-center from the central axis to facilitate the assembly and disassembly of the rear cover 1-4.

[0029] The fixed bracket 4 includes at least: a base 4-1, an expansion joint 4-2, a grooved fixing platform 4-3, a double-opening sleeve with hinges 4-4, an outer cylinder 4-2-1, an inner cylinder 4-2-2, and screws 4-2-3; the base 4-1 is threadedly fixed to the ground or any wall of the tunnel; the upper end of the base 4-1 is threadedly fixed to the lower end of the outer cylinder 4-2-1 of the expansion joint; the inner cylinder 4-2-2 of the expansion joint is fitted into the outer cylinder 4-2-1 and fixed and slidable by the screws 4-2-3; the top end of the inner cylinder 4-2-2 is threadedly fixed to the bottom end of the grooved fixing platform 4-3; the grooved fixing platform 4-3 is a short L-shaped concave platform, and the upper surface of the platform is grooved. The upper end face is fixedly connected to the hinged double-opening sleeve 4-4. In use, first fix the fixed bracket 4-1 at the sampling position, adjust the orientation and position of the groove-shaped fixed platform 4-3 through the telescopic device 4-2, tighten the screw 4-2-3 to position the fixed platform 4-3, open the sleeve 4-4, place the high-speed fluid collector 1 in the groove of the fixed platform 4-3, and the rear cover 1-4 of the high-speed fluid collector contacts the short L-shaped component 1-5-1 of the groove-shaped fixed platform 4-3. Clamp the sleeve 4-4 so that the inner side of the sleeve 4-4 is in close contact with the outer wall of the high-speed fluid collector 1, thereby realizing fluid collection at any position.

[0030] See Figure 4The passive pressure control braking module 2 includes at least: a plug 2-1, a connecting rod 2-2, a fourth sealing ring 2-3, a spring 2-4, a locking position 2-5, a guide stabilizer 2-6, a connecting fixing rod 2-7, a buckle 2-8, a center hole 2-6-1, a third threaded hole 2-6-2, a positioning rod 2-8-1, a locking rod 2-8-2, and a second hinge 2-8-3; the plug 2-1, connecting rod 2-2, guide stabilizer 2-6, and the first double V-shaped air inlet 1-3-1 are on the same axis; the front end of the plug 2-1 is provided with a locking groove, and the fourth sealing ring 2-3 is fixed in the locking groove by elastic force; the rear end of the plug 2-1 is threadedly fixed to the front end of the connecting rod 2-2; the connecting rod 2-2 passes through the first double V-shaped air inlet 1-3-1 in sequence. Spring 2-4 and guide center hole 2-6-1 are threadedly sealed to locking position 2-5. One end of spring 2-4 is fixed to the rear end of plug 2-1, and the other end is fixed to the front end face of guide center 2-6. Guide center 2-6 has third threaded holes 2-6-2 at both ends and center hole 2-6-1 at the central axis position. One end of connecting rod 2-7 is fixedly connected to the third threaded hole 2-6-2 of guide center 2-6-2, and the other end of connecting rod 2-7 is fixedly connected to the inner thread of rear cover 1-4. Connecting rod 2-2 passes through the center hole, thus providing a guiding and straightening function for plug 2-1. Buckle 2-8 is an L-shaped hinge structure, and one end of positioning rod 2-8-1 is fixed to the connecting rod. On 2-7, the other end is connected to the bayonet rod 2-8-2 via the second hinge 2-8-3. The bayonet rod 2-8-2 is a connecting rod with one straight end and a triangular barb on the other. The straight end is connected to the positioning rod 2-8-1 via a hinge, and the other end is in contact with the passive pressure control plate 1-5 and the locking position 2-5 respectively. Before sampling, the plug 2-1 is compressed towards the guide stabilizer 2-6, and the plug 2-1 is separated from the first double V-shaped air inlet 1-3-1. The first double V-shaped air inlet 1-3-1 is opened, and the spring 2-4 is in a compressed state. It is fixed by the locking position 2-5 and the buckle 2-8. The passive pressure control plate 1-5 and the buckle 2-8 have no pressure line contact. When the high-speed fluid passes through the first double V-shaped air inlet 1-8-1, the spring 2-4 is in a compressed state and is fixed by the locking position 2-5 and the buckle 2-8. The passive pressure control plate 1-5 and the buckle 2-8 have no pressure line contact. After the V-shaped air inlet 1-3-1 enters the sampling chamber 1-1, the high-speed, high-pressure fluid acts on the passive pressure control plate 1-5, causing the passive pressure control plate 1-5 to bend towards the rear cover 1-4, thereby pushing the buckle 2-8 to disengage from the locking position 2-5. Under the reverse elastic force of the compression spring 2-4 and the action of the guide stabilizer 2-6, the assembly of the plug 2-1, connecting rod 2-2, and locking position 2-5 moves rapidly towards the first double V-shaped air inlet 1-3-1. The fourth sealing ring 2-3 achieves a sealed connection between the plug 2-1 and the first double V-shaped air inlet 1-3-1. At this time, the first double V-shaped air inlet 1-3-1 is closed, and the high-speed fluid no longer enters the sampling chamber 1-1, thus completing the sampling.

[0031] See Figure 5The multi-stage series connection assembly 3 includes at least: a connecting member 3-1, a second double V-shaped air inlet 3-2, a third lateral pin 3-3, and a fifth sealing ring 3-4; when the high-speed fluid collector 1 is continuously controlled for multi-stage series sampling, the rear cover 1-4 and the front cover 1-3 of adjacent high-speed fluid collectors 1 are removed respectively, and they are sealed to the front and rear ends of the connecting member 3-1 through the fifth sealing ring 3-4 and the third lateral pin 3-3; the connecting member 3-1 is provided with a second double V-shaped air inlet 3-2 at the central axis position, connecting the front and rear high-speed fluid collectors 1; in the multi-stage series mode, the position of the air intake 1-3-2 of the front high-speed fluid collector 1 remains unchanged, and the air intake 1-3-2 of the other high-speed fluid collectors is provided on the side wall of the sampling chamber 1-1.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A passive pressure-controlled intrinsically safe explosion process product collection device, comprising a high-speed fluid collector (1), a passive pressure-controlled braking module (2), a multi-stage series connection assembly (3), and a fixed bracket (4), characterized in that: The passive pressure control braking module (2) is located inside the high-speed fluid collector (1). The high-speed fluid collector (1) is fixed to the sampling position by a fixed bracket (4). Several groups of the high-speed fluid collectors (1) are connected in series by a multi-stage series connection component (3). The high-speed fluid collector (1) includes a sampling chamber (1-1), a control chamber (1-2), a front cover (1-3), and a rear cover (1-4). The front end of the sampling chamber (1-1) is detachably connected to the front cover (1-3), and the rear end of the control chamber (1-2) is detachably connected to the rear cover (1-4). A passive pressure control plate (1-5) is provided inside the control chamber (1-2). The front cover (1-3) is provided with a first double V-shaped air inlet (1-3-1) and an air outlet (1-3-2). The air outlet (1-3-2) is connected to a connecting valve (1-3-3) through a pipeline. The passive pressure control braking module (2) includes a plug (2-1), a connecting rod (2-2), a spring (2-4), a guide stabilizer (2-6), a connecting rod (2-7), and a buckle (2-8). The plug (2-1) is coaxially opposite to the first double V-shaped air inlet (1-3-1). A slot is provided on the front side of the plug (2-1), and a fourth sealing ring (2-3) is embedded in the slot. One end of the connecting rod (2-7) is fixedly connected to the rear cover (1-4), and the other end of the connecting rod (2-7) is threadedly connected to one side of the guide stabilizer (2-6). The connecting rod (2-4) is... One end of the -2) passes through the spring (2-4) and the center hole (2-6-1) in sequence, and is fixedly connected to the plug (2-1). The connecting rod (2-2) is provided with a locking position (2-5). The spring (2-4) is sleeved on the connecting rod (2-2) and located between the plug (2-1) and the guide stabilizer (2-6). The buckle (2-8) is provided at the top of the connecting fixing rod (2-7). The buckle rod (2-8-2) of the buckle (2-8) contacts the locking position (2-5) to achieve locking before sampling. The top of the guide stabilizer (2-6) is provided with a third threaded hole (2-6-2) for connection. The passive pressure control plate (1-5) is a short L-shaped component (1-5-1), and one end of the passive pressure control plate (1-5) is rotatably connected to the inner wall of the control cavity (1-2) through the first hinge (1-5-2). The inner wall of the control cavity (1-2) is fixedly connected to a limiter (1-5-3), and the limiter (1-5-3) is fixedly connected to the passive pressure control plate (1-5).

2. The passive pressure-controlled intrinsically safe explosion process product collection device according to claim 1, characterized in that, The sampling chamber (1-1) and the control chamber (1-2) are sealed together by a first sealing ring (1-6). The front cover (1-3) is detachably sealed to the front of the sampling chamber (1-1) by a first lateral pin (1-3-4) and a second sealing ring (1-3-5). The rear cover (1-4) is detachably sealed to the rear end of the control chamber (1-2) by a second lateral pin (1-4-3) and a third sealing ring (1-4-1). The top of the front cover (1-3) is provided with a first threaded hole (1-3-6), and the top of the rear cover (1-4) is provided with a second threaded hole (1-4-2).

3. The passive pressure-controlled intrinsically safe explosion process product collection device according to claim 1, characterized in that, The buckle (2-8) includes a positioning rod (2-8-1), a locking rod (2-8-2), and a second hinge (2-8-3). The positioning rod (2-8-1) is fixedly connected to the top of the connecting fixing rod (2-7), and the locking rod (2-8-2) is rotatably connected to the positioning rod (2-8-1) through the second hinge (2-8-3).

4. The passive pressure-controlled intrinsically safe explosion process product collection device according to claim 1, characterized in that, The multi-stage series connection assembly (3) includes a connecting member (3-1), a second double V-shaped air inlet (3-2), a third lateral pin (3-3), and a fifth sealing ring (3-4). The second double V-shaped air inlet (3-2) is located at the center of the connecting member (3-1). Both ends of the connecting member (3-1) are detachably and sealed to the adjacent high-speed fluid collector (1). The two ends of the connecting member (3-1) are detachably and sealed to the adjacent high-speed fluid collector (1) through the third lateral pin (3-3) and the fifth sealing ring (3-4).

5. A passive pressure-controlled intrinsically safe explosion process product collection device according to claim 1, characterized in that, The fixed bracket (4) includes a base (4-1), a telescopic device (4-2), a grooved fixing platform (4-3), and a double-opening sleeve (4-4). The telescopic device (4-2) is fixedly connected to the base (4-1), and the grooved fixing platform (4-3) is fixedly connected to the top of the telescopic device (4-2). The double-opening sleeve (4-4) is hinged to the top of the grooved fixing platform (4-3). The telescopic device (4-2) includes an outer cylinder (4-2-1), an inner cylinder (4-2-2), and a screw thread (4-2-3). The inner cylinder (4-2-2) is fitted inside the outer cylinder (4-2-1) and fixed by tightening the screw thread (4-2-3).

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