Voltage-controlled high-speed fluid precision trapping device

Abstract

The application provides a voltage-controlled high-speed fluid precise trapping device, and belongs to the technical field of chemical industry.The voltage-controlled high-speed fluid precise trapping device comprises a high-speed fluid trap, a precise voltage control unit module, a multistage sampling connection assembly and a positioning support.The device provided by the application realizes multistage series linkage control through a connecting assembly, can realize continuous collection of high-speed fluid and products in different stages of the same event, and can realize trapping at any position and any angle through the positioning support, thereby providing a new experimental method and means for revealing the change of high-speed fluid carriers and the law of explosion processes.The device provided by the application adopts modular design, each connecting port adopts the same standard, and is quickly connected through threads, pins and the like, so that the device is convenient to assemble and disassemble, the valve and the pipeline have a unified standard, the parts have good universality, the device is convenient to clean in the later period, and has good repeatability.

Description

Technical Field

[0001] This invention relates to the fields of chemical engineering and other technologies, specifically to a pressure-controlled high-speed fluid precision capture device. Background Technology

[0002] The chemical industry is prone to generating flammable gases and dust during production. Improper handling may cause gas / dust explosions, which seriously threaten safe production. Especially in sewage or waste discharge pipeline environments, gas explosions are extremely dangerous. Their shock waves can carry other flammable deposited dust, causing secondary explosions with even greater destructive power, and the turbulence can accelerate the spread of flames.

[0003] Currently, research on the explosion process mainly focuses on the measurement of macroscopic parameters and post-explosive static analysis. Due to the influence of high temperature, high pressure and strong impact environment, it is difficult to capture information on chemical products at different stages in real time during the explosion process. Existing collection devices generally have slow response and low triggering accuracy, and cannot achieve millisecond-level rapid opening and closing and precise collection at the pressure stage. Therefore, it is difficult to reveal the chemical evolution law of the explosion process, which restricts the active development of explosion suppression technology. Summary of the Invention

[0004] The purpose of this invention is to provide a pressure-controlled high-speed fluid precision capture device to solve the problems mentioned in the prior art as described in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pressure-controlled high-speed fluid precision capture device includes a high-speed fluid trap, a precision pressure control unit module, a multi-stage sampling connection assembly, and a positioning bracket. The high-speed fluid trap is electrically connected to the precision pressure control unit module, which is located at the rear end of the inner cavity of the high-speed fluid trap. The positioning bracket is fixedly connected to an external plane, and the high-speed fluid trap is fixed on the positioning bracket. The multi-stage sampling connection assembly is detachably connected to multiple sets of high-speed fluid traps.

[0007] Furthermore, the high-speed fluid trap includes a pressure-bearing sleeve, a front end cover, a rear end cover, a front connecting rod, a rear connecting rod, a straightening and fixing base, an electromagnet, a guide and straightening bracket, and a sealing plug with a spring.

[0008] The pressure-bearing sleeve is located inside the high-speed fluid trap. The front end cover and the rear end cover are respectively fixedly connected to the two ends of the pressure-bearing sleeve. The rear connecting rod is threaded to one end of the rear end cover. The straightening and fixing base is threaded to one end of the fixing electromagnet. The front connecting rod is threaded to one end of the guide straightening bracket. The guide straightening bracket is located inside the pressure-bearing sleeve. The spring-loaded sealing plug is movably located inside the front end cover. The electromagnet is movably located inside the pressure-bearing sleeve.

[0009] Furthermore, the precision pressure control unit module includes a power supply, a current inverter, a test lamp, a control switch, a rupture disc, a positive sealing conductive groove, and a negative sealing conductive groove;

[0010] The power supply and current inverter are both fixed to the inside of the rear connecting rod by threads. The control switch and inspection lamp are both installed at one end of the rear end cover. The rupture disc is installed at one end of the front end cover. The positive sealing conductive groove and the negative sealing conductive groove are both opened at one end of the rear end cover.

[0011] Furthermore, the pressure-bearing sleeve is a cylindrical body with openings at both ends. The two ends of the pressure-bearing sleeve are respectively sealed to the front end cover and the rear end cover through a first lateral pin and a first sealing ring. The front end cover has a double V-shaped through hole at the central axis position and an air intake hole at the position off the central axis position. The air intake hole is connected to the control valve through a pipeline.

[0012] Furthermore, the outer end face of the front cover is provided with a pressing groove, and an insulating threaded hole is opened in the pressing groove. A sealing plug is provided at the central shaft position of the rear end cover. The outer end face of the rear end cover is provided with a switch groove and a lamp groove, and the inner end face is provided with a second fixing hole for threaded connection with the rear connecting rod.

[0013] Furthermore, one end of the rear connecting rod is threadedly fixed to the rear end cover, and the other end is threadedly fixed to the back of the straightening and fixing base. The center of the front of the straightening and fixing base is fixedly connected to the electromagnet bolt, and a third threaded hole is provided at the edge of the front to be threadedly fixed to one end of the front connecting rod. The other end of the front connecting rod is threadedly fixed to the back of the guide straightening bracket. One end of the guide straightening bracket is provided with a T-shaped component, a first connecting hole is provided at the central axis, and a fourth threaded hole is provided at the edge to connect to the front connecting rod.

[0014] Furthermore, the multi-stage sampling connection assembly includes a connecting block, a second connecting hole, a wire guide groove, an L-shaped wire guide groove, a second lateral pin buckle, a third sealing ring, a first fixing hole, and a lateral pressing plate groove;

[0015] The connecting block is installed inside the pressure-bearing sleeve. The second connecting hole, the wire guide groove, and the L-shaped wire guide groove are all opened at one end of the connecting block. The second lateral pin is set inside the pressure-bearing sleeve. The third sealing ring is fixedly connected to one end of the connecting block. The first fixing hole is opened on the inner end face of the connecting block facing the front end cover. The lateral pressure plate groove is opened on the outer side face of the connecting block.

[0016] Furthermore, the positioning bracket includes a second base, a telescopic device, a grooved platform, and a double-opening sleeve with hinges;

[0017] The second base is fixed to the ground by threads, the telescopic device is fixedly connected to the upper end of the second base, the groove platform is opened at one end of the telescopic device, and the double-opening sleeve with hinge is set in the groove platform.

[0018] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0019] 1. The pressure-controlled high-speed fluid precision capture device provided by the present invention uses the dual action of spring and electromagnet magnetic reversal to achieve extremely fast response and capture of explosion process products. At the same time, by utilizing the precise control of the pressure-bearing capacity of the rupture disc, the precise control of the capture of explosion process products is achieved.

[0020] 2. The device provided by the present invention achieves precise control of different pressure zones by controlling the thickness of the rupture disc. The rupture disc is fixed to the groove on the opposite end face of the shock wave by threads, which can maximize the sensing of pressure changes brought by high-speed fluid, thereby achieving high-precision, multi-time period, and multi-segment high-speed fluid accurate capture.

[0021] 3. The device provided by this invention realizes multi-level series linkage control through connecting components, which can realize continuous collection of high-speed fluid and process products at different stages of the same event. At the same time, the positioning bracket can realize collection at any position and any angle, providing new experimental methods and means for revealing the laws of high-speed fluid carrier changes and explosion processes.

[0022] 4. The device provided by this 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.

[0023] 5. 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

[0024] 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.

[0025] Figure 1 This is a schematic diagram of the structure of a pressure-controlled high-speed fluid precision capture device provided by the present invention.

[0026] Figure 2 This is a side view of the high-speed fluid collector and the precision pressure control unit module in a pressure-controlled high-speed fluid precision capture device provided by the present invention.

[0027] Figure 3 This is a front view structural diagram of the front cover and rear cover of a pressure-controlled high-speed fluid precision capture device provided by the present invention.

[0028] Figure 4 This is a side view schematic diagram of the multi-stage sampling connection component and the multi-stage series structure of the high-speed fluid collector in a pressure-controlled high-speed fluid precision collection device provided by the present invention.

[0029] Figure 5 This is a side view of the positioning bracket structure of a pressure-controlled high-speed fluid precision capture device provided by the present invention.

[0030] In the diagram: 1-High-speed fluid trap, 2-Precision pressure control unit module, 3-Multi-stage sampling connection assembly, 4-Positioning bracket, 1-1-Pressure-bearing sleeve, 1-2-Front end cover, 1-3-Rear end cover, 1-4-Front connecting rod, 1-5-Rear connecting rod, 1-6-Straightening and fixing base, 1-7-Electromagnet, 1-8-Guide and straightening bracket, 1-9-Sealing plug with spring, 1-1-1-Cylinder body, 1-1-2-First lateral pin, 1-1-3-First sealing ring, 1-2-1 - Double V-shaped through hole, 1-2-2- Air intake hole, 1-2-3- Control valve, 1-2-4- Pressing plate groove, 1-2-5- Insulating threaded hole, 1-2-6- First threaded hole, 1-3-1- Lamp groove, 1-3-2- Switch groove, 1-3-3- Sealing plug, 1-3-4- Second fixing hole, 1-3-5- Second threaded hole, 1-6-1- First base, 1-6-2- Third threaded hole, 1-6-3- Bolt, 1-8-1- T-shaped component, 1-8-2- First Connecting hole, 1-8-3-Fourth threaded hole, 1-9-1-Plug with slot, 1-9-2-Second sealing ring, 1-9-3-Spring, 1-9-4-Guide rod, 1-9-5-Permanent magnet, 2-1-Power supply, 2-2-Current inverter, 2-3-Inspection lamp, 2-4-Control switch, 2-5-Rupture disc, 2-6-Positive sealing conductive groove, 2-7-Negative sealing conductive groove, 2-2-1-Input terminal 1, 2-2-2-Output terminal 1, 2-2-3 - Input terminal 2, 2-2-4- Output terminal 2, 3-1- Connecting block, 3-2- Second connecting hole, 3-3- Wire guide groove, 3-4- L-shaped wire guide groove, 3-5- Second lateral pin, 3-6- Third sealing ring, 3-7- First fixing hole, 3-8- Lateral pressure plate groove, 4-1- Second base, 4-2- Telescopic device, 4-3- Groove platform, 4-4- Double-opening sleeve with hinge, 4-2-1- Inner cylinder, 4-2-2- Outer cylinder, 4-2-3- Threaded thread. Detailed Implementation

[0031] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] See Figure 1 This invention provides a pressure-controlled high-speed fluid precision collection device, comprising: a high-speed fluid collector 1, a precision pressure control unit module 2, a multi-stage sampling connection assembly 3, and a positioning bracket 4. The high-speed fluid collector 1 is electrically connected to the precision pressure control unit module 2, which is located at the rear end of the inner cavity of the high-speed fluid collector 1 and is threadedly connected to the rear end cover 1-4 via a rear connecting rod 1-5. The positioning bracket 4 is threadedly connected to any wall surface of the ground or tunnel. The high-speed fluid collector 1 is fixed to the positioning bracket 4 via a hinged double-opening sleeve 4-4 and a grooved platform 4-3. The multi-stage sampling connection assembly 3 provides a sealed connection when multiple sets of high-speed fluid collectors 1 are used in series, so as to realize continuous or multi-scale sampling of high-speed fluid under different conditions.

[0033] See Figure 2 , Figure 3The high-speed fluid trap 1 includes at least: a pressure-bearing sleeve 1-1, a front end cover 1-2, a rear end cover 1-3, a front connecting rod 1-4, a rear connecting rod 1-5, a straightening and fixing base 1-6, an electromagnet 1-7, a guide and straightening bracket 1-8, a spring-loaded sealing plug 1-9, a cylinder 1-1-1, a first lateral pin buckle 1-1-2, a first sealing ring 1-1-3, a double V-shaped through hole 1-2-1, an air intake hole 1-2-2, a control valve 1-2-3, a pressure plate groove 1-2-4, and an insulating threaded hole 1-2-5. First threaded hole 1-2-6, lamp groove 1-3-1, switch groove 1-3-2, sealing plug 1-3-3, second fixing hole 1-3-4, second threaded hole 1-3-5, first base 1-6-1, third threaded hole 1-6-2, bolt 1-6-3, T-shaped component 1-8-1, first connecting hole 1-8-2, fourth threaded hole 1-8-3, plug with slot 1-9-1, second sealing ring 1-9-2, spring 1-9-3, guide rod 1-9-4, permanent magnet 1-9-5.The pressure-bearing sleeve 1-1 is a cylindrical body 1-1-1 with openings at both ends. The pressure-bearing sleeve 1-1 has lateral openings at both ends, which are sealed to the front cover 1-2 and the rear cover 1-3 respectively via a first lateral pin 1-1-2 and a first sealing ring 1-1-3. The front cover 1-2 has a double V-shaped through hole 1-2-1 at its central axis position, and an air intake hole 1-2-2 offset from the central axis position. The air intake hole 1-2-2 is connected to the control valve 1-2-3 via a pipeline. A pressure plate groove 1-2-4 is provided on the outer end face of the front cover 1-2 at a position symmetrical to the central axis of the air intake hole 1-2-2. An insulating threaded hole 1-2-5 is opened inside the pressure plate groove 1-2-4. The air intake hole 1-2-2 and the pressure plate... The outer end face of the front cover perpendicular to the line connecting slots 1-2-4 is provided with a first threaded hole 1-2-6; the central axis position of the rear cover 1-3 is provided with a sealing plug 1-3-3 for sealing the wire outlet and the pressure-bearing sleeve 1-1; the outer end face of the rear cover 1-3 is provided with a switch slot 1-3-2, a lamp slot 1-3-1, and a second threaded hole 1-3-5; the inner end face of the rear cover 1-3 is provided with a second fixing hole 1-3-4, which is threadedly fixed to the rear connecting rod 1-5; one end of the rear connecting rod 1-5 is threadedly fixed to the inner side of the rear cover 1-3, and the other end is threadedly fixed to the back of the straightening and fixing base 1-6; the center position of the front of the first base 1-6-1 is bolted to the electromagnet 1-7. 1-6-3 is a fixed connection. A third threaded hole 1-6-2 is provided on the front edge of the straightening and fixing base 1-6, which is threadedly fixed to one end of the front connecting rod 1-4. The other end of the front connecting rod 1-4 is threadedly fixed to the back of the guide straightening bracket 1-8. The guide straightening bracket 1-8 has a T-shaped cross-section 1-8-1. A first connecting hole 1-8-2 is provided at the central axis of the guide straightening bracket 1-8. A fourth threaded hole 1-8-3 is provided on the edge of the guide straightening bracket 1-8, which is threadedly fixed to one end of the front connecting rod 1-4. The spring-loaded sealing plug 1-9 is coaxial with the double V-shaped through hole 1-2-1. The front end of the spring-loaded sealing plug 1-9 has a groove. The plug 1-9-1 and the second sealing ring 1-9-2 are elastically bound to the slot position. The front end of the plug 1-9-1 is squeezed and sealed to the double V-shaped through hole 1-2-1. The rear end of the plug 1-9-1 is threadedly fixed to the guide rod 1-9-4. The guide rod 1-9-4 passes through the spring 1-9-3 and the first connecting hole 1-8-2 of the guide and straightening bracket 1-8 in sequence. The other end is threadedly fixed to the permanent magnet 1-9-5. The outer end face of the permanent magnet 1-9-5 is magnetically attracted to the electromagnet 1-7. One end of the spring 1-9-3 is threadedly fixed to the rear end of the plug 1-9-1. The other end is threadedly fixed to the outer end face of the guide and straightening bracket 1-8.When electromagnet 1-7 is energized in the forward direction, under the action of magnetic force and the guide support, the spring-loaded plug 1-9 moves towards electromagnet 1-7. The permanent magnet 1-9-5 contacts the magnetic attraction surface of electromagnet 1-7. At this time, the plug 1-9-1 separates from the double V-shaped through hole 1-2-1, the spring 1-9-3 is compressed, and the cylinder 1-1 is connected to the outside. When electromagnet 1-7 is de-energized, the magnetic force disappears, and the plug 1-9-1, under the influence of spring 1-9-3 and the guide support 1-8... Under the action of the electromagnet 1-7, the plug 1-9-1 moves towards the double V-shaped through hole 1-2-1, and the front end of the plug 1-9-1 is squeezed and sealed with the double V-shaped through hole 1-2-1, and the inside of the pressure sleeve 1-1 is sealed. When the electromagnet 1-7 is energized in the reverse direction, the plug 1-9-1 moves towards the double V-shaped through hole 1-2-1 under the combined action of the magnetic force, the spring 1-9-3 and the guide and straightening bracket 1-8, and the front end of the plug 1-9-1 is squeezed and sealed with the double V-shaped through hole 1-2-1, and the inside of the pressure sleeve 1-1 is sealed.

[0034] The precision pressure control unit module includes at least: a power supply 2-1, a current inverter 2-2, an inspection lamp 2-3, a control switch 2-4, a rupture disc 2-5, a positive sealing conductive groove 2-6, a negative sealing conductive groove 2-7, a first input terminal 2-2-1, a first output terminal 2-2-2, a second input terminal 2-2-3, and a second output terminal 2-2-4. The power supply 2-1 and the current inverter 2-2 are threaded to the inside of the rear connecting rod 1-5. The positive and negative terminals of the power supply 2-1 are electrically connected to the first input terminal 2-2-1 and the second output terminal 2-2-4 of the current inverter, respectively. The first output terminal 2-2-2 of the current inverter is electrically connected to the input terminal of the positive sealing conductive groove 2-6, and the second input terminal 2-2-3 of the current inverter is electrically connected to the output terminal of the electromagnet 1-7. The positive sealing conductive groove 2-6 and the negative sealing conductive groove 2-7 pass through the sealing plug 1-3. 3. It is sealed and connected to the control switch 2-4 and the inspection lamp 2-3 in sequence. The control switch 2-4 and the inspection lamp 2-3 are respectively threaded and fixed in the switch groove 1-3-2 and the lamp groove 1-3-1 of the rear cover. The rupture disc 2-5 is fixed in the pressing groove 1-2-4, one end of which is electrically connected to the output end of the inspection lamp 2-3, and the other end is electrically connected to the input end of the negative sealing conductive groove 2-7. The output end of the negative sealing conductive groove 2-7 is electrically connected to the input end of the electromagnet 1-7. When the control switch 2-4 is closed and the rupture disc 2-5 is intact, the inspection lamp 2-3 is lit, the electromagnet 1-7 is energized in the forward direction, and it generates an attractive force on the permanent magnet 1-9-5. When the rupture disc 2-5 is damaged, the inspection lamp 2-3 is turned off, the current inverter is adjusted, the electromagnet 1-7 is energized in the reverse direction, and it generates a repulsive force on the permanent magnet 1-9-5.

[0035] See Figure 4The multi-stage sampling connection assembly 3 includes at least: a connecting block 3-1, a second connecting hole 3-2, a wire guide groove 3-3, an L-shaped wire guide groove 3-4, a second lateral pin 3-5, a third sealing ring 3-6, a first fixing hole 3-7, and a lateral pressing groove 3-8. The first fixing hole 3-7 is located on the inner end face of the connecting block 3-1 facing the front end cover 1-2, and the lateral pressing groove 3-8 is located on the outer side face of the connecting block 3-1. The second connecting hole 3-2 is located at the central axis of the connecting block 3-1, and the wire guide groove 3-3 and the L-shaped wire guide groove 3-4 are located off the central axis. One end of the L-shaped wire guide groove 3-4 is connected to the front cylinder 1-1-1, and the other end is connected to the lateral pressing groove 3-8. The rupture disc 2-5 is fixed in the lateral pressing groove 3-8. When multiple high-speed fluid traps 1 are used in series, the rear end cover 1-3 of the front high-speed fluid trap 1 and the front end cover 1-2 of the rear high-speed fluid trap 1 are removed and respectively connected to the two ends of the multi-stage sampling connection assembly 3. The sealing connection between the multi-stage sleeves is achieved through the second lateral pin buckle 3-5 and the third sealing ring 3-6. When multiple stages are connected in series, they can share a power supply 2-1 or have a single-stage independent power supply 2-1. When using a single-stage independent power supply 2-1, the wires pass through the guide groove 3-3 and the L-shaped wires pass through the guide groove 3-4 for direct soft sealing. When used in common power supply 2-1, the connecting wire of the front electromagnet 1-7 must be sealed and passed through the wire guide groove 3-3 and connected to the rear current inverter 2-2. One end of the rupture disc 2-5 is electrically connected to the electromagnet 1-7 through the L-shaped wire guide groove 3-4. In addition, except for the rupture disc 2-5 and the air intake 1-2-2 of the first high-speed fluid trap 1, which remain unchanged, the rupture disc 2-5 of the other high-speed fluid traps is located on the side of the connecting block 3-1, and the air intake 1-2-2 is located on the side wall of the cylinder 1-1-1.

[0036] Reference Figure 5The positioning bracket 4 includes at least: a second base 4-1, an expansion joint 4-2, a grooved platform 4-3, a hinged double-opening sleeve 4-4, an inner cylinder 4-2-1, an outer cylinder 4-2-2, and a screw thread 4-2-3. The second base 4-1 is threadedly fixed to the ground or any wall of the tunnel. The upper end of the second base 4-1 is threadedly fixed to the lower end of the outer cylinder 4-2-2 of the expansion joint 4-2. The inner cylinder 4-2-1 is fitted into the outer cylinder 4-2-2 and fixed by the screw thread 4-2-3. The top end of the inner cylinder 4-2-1 is threadedly fixed to the bottom end of the grooved platform 4-3. The grooved platform 4-3 is a short L-shaped concave platform with a grooved upper surface. The upper surface of the platform is hingedly fixed to the double-opening sleeve 4-4. In use, first fix the positioning bracket 4 at the sampling position, adjust the orientation and position of the groove platform 4-3 through the telescopic device 4-2, and tighten the screw 4-2-3 to fix the platform. Open the sleeve 4-4 and place the high-speed fluid collector 1 in the groove of the fixed platform 4-3. The rear cover 1-3 of the high-speed fluid collector 1 contacts the short L-shaped component. 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.

[0037] 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 pressure-controlled high-speed fluid precision capture device, characterized in that: The system includes a high-speed fluid trap (1), a precision pressure control unit module (2), a multi-stage sampling connection assembly (3), and a positioning bracket (4). The high-speed fluid trap (1) is electrically connected to the precision pressure control unit module (2). The precision pressure control unit module (2) is located at the rear end of the inner cavity of the high-speed fluid trap (1). The positioning bracket (4) is fixedly connected to the external plane. The high-speed fluid trap (1) is fixed on the positioning bracket (4). The multi-stage sampling connection assembly (3) is detachably connected to multiple sets of high-speed fluid traps (1). The high-speed fluid trap (1) and the precision pressure control unit module (2) cooperate to achieve precise capture of fluid by pressure. The multi-stage sampling connection assembly (3) includes a connecting block (3-1), a second connecting hole (3-2), a wire guide groove (3-3), an L-shaped wire guide groove (3-4), a second lateral pin (3-5), a third sealing ring (3-6), a first fixing hole (3-7), and a lateral pressing groove (3-8). The high-speed fluid trap (1) includes a pressure-bearing sleeve (1-1), a connecting block (3-1) installed inside the pressure-bearing sleeve (1-1), a second connecting hole (3-2), a wire guide groove (3-3) and an L-shaped wire guide groove (3-4) all opened at one end of the connecting block (3-1), a second lateral pin buckle (3-5) disposed inside the pressure-bearing sleeve (1-1), a third sealing ring (3-6) fixedly connected to one end of the connecting block (3-1), and a lateral pressing groove (3-8) and a first fixing hole (3-7) respectively opened at one end and the upper end of the connecting block (3-1).

2. The pressure-controlled high-speed fluid precision capture device according to claim 1, characterized in that, The high-speed fluid trap (1) also includes a front cover (1-2), a rear cover (1-3), a front connecting rod (1-4), a rear connecting rod (1-5), a straightening and fixing base (1-6), an electromagnet (1-7), a guide and straightening bracket (1-8), and a sealing plug with a spring (1-9). The pressure-bearing sleeve (1-1) is located inside the high-speed fluid trap (1). The front end cover (1-2) and the rear end cover (1-3) are respectively fixedly connected to the two ends of the pressure-bearing sleeve (1-1). The rear connecting rod (1-5) is threaded to one end of the rear end cover (1-3). The straightening and fixing base (1-6) is threaded to one end of the fixing electromagnet (1-7). The front connecting rod (1-4) is threaded to one end of the guide straightening bracket (1-8). The guide straightening bracket (1-8) is located inside the pressure-bearing sleeve (1-1). The spring-loaded sealing plug (1-9) is movably located inside the front end cover (1-2). The electromagnet (1-7) is movably located inside the pressure-bearing sleeve (1-1).

3. The pressure-controlled high-speed fluid precision collection device according to claim 2, characterized in that, The precision pressure control unit module (2) includes a power supply (2-1), a current inverter (2-2), an inspection lamp (2-3), a control switch (2-4), a rupture disc (2-5), a positive sealing conductive groove (2-6), and a negative sealing conductive groove (2-7). The power supply (2-1) and the current inverter (2-2) are both fixed to the inside of the rear connecting rod (1-5) by threads. The control switch (2-4) and the inspection lamp (2-3) are both installed at one end of the rear end cover (1-3). The rupture disc (2-5) is installed at one end of the front end cover (1-2). The positive sealing conductive groove (2-6) and the negative sealing conductive groove (2-7) are both opened at one end of the rear end cover (1-3).

4. The pressure-controlled high-speed fluid precision collection device according to claim 2, characterized in that, The pressure-bearing sleeve (1-1) is a cylindrical body (1-1-1) with openings at both ends. The two ends of the pressure-bearing sleeve (1-1) are respectively sealed to the front end cap (1-2) and the rear end cap (1-3). One end of the front end cap (1-2) is provided with a double V-shaped through hole (1-2-1) and an air intake hole (1-2-2). The air intake hole (1-2-2) is connected to the control valve (1-2-3) through a pipeline.

5. The pressure-controlled high-speed fluid precision capture device according to claim 2, characterized in that, The front end cover (1-2) has a pressing groove (1-2-4) on its outer end face, and an insulating threaded hole (1-2-5) is opened in the pressing groove (1-2-4). The rear end cover (1-3) has a sealing plug (1-3-3) at the central axis position.

6. The pressure-controlled high-speed fluid precision collection device according to claim 2, characterized in that, One end of the rear connecting rod (1-5) is threadedly fixed to the rear end cover (1-3), and the other end is threadedly fixed to the back of the straightening and fixing base (1-6). The center of the front of the straightening and fixing base (1-6) is bolted to the electromagnet (1-7). A third threaded hole (1-6-2) is provided at the edge of the front and is threadedly fixed to one end of the front connecting rod (1-4). The other end of the front connecting rod (1-4) is threadedly fixed to the back of the guide straightening bracket (1-8). One end of the guide straightening bracket (1-8) is provided with a T-shaped component (1-8-1), a first connecting hole (1-8-2) is provided at the center axis, and a fourth threaded hole (1-8-3) is provided at the edge to connect to the front connecting rod (1-4).

7. The pressure-controlled high-speed fluid precision collection device according to claim 1, characterized in that, The positioning bracket (4) includes a second base (4-1), a telescopic device (4-2), a grooved platform (4-3), and a double-opening sleeve (4-4) with hinges. The second base (4-1) is fixed to the ground by threads, the telescopic device (4-2) is fixedly connected to the upper end of the second base (4-1), the groove platform (4-3) is opened at one end of the telescopic device (4-2), and the hinged double-opening sleeve (4-4) is set in the groove platform (4-3).

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