CN216593012U - Explosion reaction transient voltage measuring system - Google Patents

Abstract

The utility model relates to an explosion reaction parameter measurement technical field provides an explosion reaction transient voltage measurement system, include: the explosion-proof device, the excitation device and the signal processing device; the explosion-proof device comprises an explosion-proof cylinder, an outer cylinder and an inner cylinder which are sequentially sleeved from outside to inside; the outer cylinder comprises a conductive first cylinder bottom, the inner cylinder comprises a conductive second cylinder bottom, a preset gap is reserved between the first cylinder bottom and the second cylinder bottom, and the inner cylinder is used for placing explosives; the excitation device is arranged outside the explosion-proof cylinder and is used for generating an excitation source to excite the explosive to generate an explosion reaction; the signal processing device is respectively electrically connected with the first cylinder bottom and the second cylinder bottom, the original electric potentials of the first cylinder bottom and the second cylinder body are changed by electric charges generated in the explosion reaction process to form a potential difference, and the transient voltage in the explosion reaction process can be obtained by the signal processing device according to the potential difference, so that a reference basis is provided for researching the explosion reaction process.

Description

Explosion reaction transient voltage measuring system

Technical Field

The utility model belongs to the technical field of the explosion reaction parameter measurement technique and specifically relates to an explosion reaction transient voltage measurement system is related to.

Background

The explosion of explosives is mostly based on rapid chemical reaction, and the essence of the chemical reaction is the problem of electron gain and loss, and in the research of the formulation of explosive materials, the design of initiating explosive devices and the understanding of the mechanism of explosion, the research of the electron transport and charge accumulation of explosive particles is important, and the basic parameters and performance of explosive performance are determined.

The reaction process of the explosive is that after the main explosive is detonated, other fuels, oxidants and the like and detonation products generate continuous secondary reaction and release a large amount of energy, and the duration of the explosive reaction reaches tens of microseconds or even tens of microseconds. Due to the short explosion reaction time and the huge energy, the prior art cannot detect the explosion process, so that the charge change condition in the explosion reaction process cannot be known.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion reaction transient voltage measurement system to solve the problem that prior art can't know the change of charge among the explosion reaction process.

The embodiment of the utility model provides an explosion reaction transient voltage measurement system, include: the explosion-proof device, the excitation device and the signal processing device; the explosion-proof device comprises an explosion-proof cylinder, an outer cylinder and an inner cylinder which are sequentially sleeved from outside to inside; the outer cylinder comprises a first conductive cylinder bottom, the inner cylinder comprises a second conductive cylinder bottom, a preset gap is reserved between the first cylinder bottom and the second cylinder bottom, and the inner cylinder is used for containing explosives; the excitation device is arranged outside the explosion-proof cylinder and is used for generating an excitation source to excite the explosive to generate an explosion reaction; the signal processing device is electrically connected with the first barrel bottom and the second barrel bottom respectively and used for determining the transient voltage of the explosive in the explosion reaction process according to the potential difference value between the first barrel bottom and the second barrel bottom in the explosion reaction process.

Optionally, the preset distance between the first cylinder bottom and the second cylinder bottom is 200 to 500 micrometers.

Optionally, the explosion-proof cylinder comprises an explosion-proof cylinder body and an explosion-proof cover, and the explosion-proof cylinder body is of a cylinder structure with one open end; the explosion-proof cover is rotationally connected with one open end of the explosion-proof cylinder body and is used for sealing the explosion-proof cylinder body; the explosion-proof cover is provided with a cable opening, the signal processing device is electrically connected with the first cylinder bottom and the second cylinder bottom through connecting wires respectively, and the connecting wires penetrate through the cable opening.

Optionally, a transparent window is arranged on the explosion-proof cover, and the excitation device faces the transparent window and is used for generating a light excitation source to excite an explosive substance to generate an explosion reaction; alternatively, the energiser device comprises an electrically conductive lead extending from the cable opening to the inner barrel for generating an electrical energising source to energise explosives to initiate an explosive reaction.

Optionally, a plurality of first groove structures are arranged on the inner side of the cylinder wall of the explosion-proof cylinder, the outer cylinder further comprises a first cylinder wall, and a plurality of first protrusion structures corresponding to the first groove structures are arranged on the outer side of the first cylinder wall; the inner side of the first cylinder wall is provided with a plurality of second groove structures, the inner cylinder further comprises a second cylinder wall, and the outer side of the second cylinder wall is provided with a plurality of second bulge structures corresponding to the second groove structures; the explosion-proof cylinder and the outer cylinder are in socket joint through the alignment matching of the first groove structure and the first protruding structure, and the outer cylinder and the inner cylinder are in socket joint through the alignment matching of the second groove structure and the second protruding structure.

Optionally, a plurality of third protruding structures are arranged on the inner side of the cylinder wall of the explosion-proof cylinder, the outer cylinder further comprises a first cylinder wall, and a plurality of third groove structures corresponding to the third protruding structures are arranged on the outer side of the first cylinder wall; the inner side of the first cylinder wall is provided with a plurality of fourth protruding structures, the inner cylinder further comprises a second cylinder wall, and the outer side of the second cylinder wall is provided with a plurality of fourth groove structures corresponding to the fourth protruding structures; the explosion-proof cylinder is sleeved with the outer cylinder through the alignment matching of the third protruding structure and the third groove structure, and the outer cylinder is sleeved with the inner cylinder through the alignment matching of the fourth protruding structure and the fourth groove structure.

Optionally, the plurality of first protrusion structures and the plurality of first groove structures are all arranged in a spiral shape;

and/or the plurality of second protruding structures and the plurality of second groove structures are spirally arranged.

Optionally, the explosion reaction transient voltage measurement system further comprises: a shielding box; the explosion-proof device is surrounded by the shielding box, and the excitation device is positioned outside the shielding box; and the inner side wall and/or the outer side wall of the shielding box are/is coated with electromagnetic shielding materials.

Optionally, the explosion reaction transient voltage measurement system comprises at least one of the following technical features:

the first cylinder wall and the second cylinder wall are both ceramic cylinder walls;

the first cylinder bottom and the second cylinder bottom are both high-strength metal cylinder bottoms;

the first cylinder wall and the second cylinder wall are coated with electromagnetic shielding materials;

the explosion-proof cylinder body and the explosion-proof cover are coated with electromagnetic shielding materials.

Optionally, the explosion reaction transient voltage measurement system further comprises: and the pressure sensor is arranged on the explosion-proof cover and used for detecting the pressure in the explosion-proof device in the explosion reaction process.

The embodiment of the utility model provides a following technological effect has at least:

the embodiment of the utility model provides an explosion reaction transient voltage measurement system can provide the excitation source for the explosive in the inner tube through the excitation device, makes the explosive take place the explosion reaction under the effect of excitation source, because the explosion reaction is gone on in explosion-proof equipment, can avoid the damage that the explosion reaction brought; meanwhile, the charges generated in the explosion reaction process are transferred to the second cylinder bottom, the transferred charges change the original potential balance of the first cylinder bottom and the second cylinder body and form a potential difference, and the transient voltage in the explosion reaction process can be obtained according to the potential difference by using the signal processing device, so that a basis is provided for researching the charge change in the explosion reaction process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of an overall structure of an explosion reaction transient voltage measurement system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an explosion-proof device of an explosion-response transient voltage measurement system according to an embodiment of the present invention;

fig. 3 is a schematic view of a matching structure of an explosion-proof cylinder and an outer cylinder of an explosion reaction transient voltage measurement system according to an embodiment of the present invention;

fig. 4 is a schematic view of a matching structure of an outer cylinder and an inner cylinder of an explosion reaction transient voltage measurement system according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an outer cylinder of an explosion reaction transient voltage measurement system according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an inner barrel of an explosion transient voltage measurement system according to an embodiment of the present invention.

Icon:

100-an excitation device;

200-an explosion-proof device; 210-an explosion-proof cylinder; 210 a-an explosion proof cylinder body;

210 b-an explosion-proof cover; 210 c-a shaft; 210 d-bolt;

211-a first groove structure; 212-transparent window;

220-outer cylinder; 220 a-a first cartridge wall; 220 b-first drum bottom; 221-a first raised structure; 222-a second groove structure;

230-an inner cylinder; 230 a-a second cartridge wall; 230 b-a second drum bottom; 231-second bump structures;

300-signal processing means;

400-shielding box.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

With reference to fig. 1 and 2, an embodiment of the present invention provides an explosion reaction transient voltage measurement system, including: explosion-proof device 200, excitation device 100 and signal processing device 300.

Specifically, the explosion-proof device 200 includes an explosion-proof cylinder 210, an outer cylinder 220 and an inner cylinder 230, which are sequentially sleeved from outside to inside, that is, the inner cylinder 230 is sleeved inside the outer cylinder 220, and the outer cylinder 220 is sleeved inside the explosion-proof cylinder 210. The outer barrel 220 includes a first conductive barrel bottom 220b, the inner barrel 230 includes a second conductive barrel bottom 230b, and a predetermined gap is left between the first barrel bottom 220b and the second barrel bottom 230b, so that a capacitance model is formed between the first barrel body and the second barrel body. The inner cylinder 230 is used for placing explosives, and the explosives are subjected to an explosion reaction in the inner cylinder 230 under the excitation action of the excitation source.

It should be noted that the sleeve joint in this embodiment means that one of the two cylinder bodies is sleeved inside the other cylinder body, and the two cylinder bodies are fixedly connected to prevent relative movement during the explosion reaction.

Further, the excitation device 100 is disposed outside the explosion-proof cylinder 210, and the excitation device 100 is used for generating an excitation source by which an explosive is excited to generate an explosion reaction. Different sources of excitation may be selected for different types of explosives. For example: when the explosive is a light excitation explosive, the selected excitation device 100 generates a light excitation source, and the explosive is irradiated by the light excitation source to generate an explosion reaction; when the explosive is an electrically-stimulated explosive, the selected stimulation device 100 generates an electrically-stimulated source, and the explosive is detonated by the electrically-stimulated source and then undergoes an explosive reaction.

It is understood that in the initial state, there is no voltage applied between the first bottom 220b and the second bottom 230b, and there is no potential difference therebetween. The explosive is arranged in the inner cylinder 230, under the excitation action of the external excitation source, the explosive molecules and particles are gradually charged (in the detonation stage), the charge accumulation is gradually realized on the explosive particles, and the charge is transferred to the first cylinder bottom 220b of the inner cylinder, so that the transient voltage difference is realized between the first cylinder bottom 220b and the second cylinder bottom 230 b.

When an explosive reaction occurs (in an explosive stage), the detonation product near the detonation wavefront is in a high-temperature and high-pressure state, the product molecules are thermally dissociated, so that the detonation wavefront is conductive, and the conductive charges are transferred to the first bottom 220b of the inner cylinder 230, so that the first bottom 220b is charged, thereby forming a transient voltage difference (potential difference) between the first bottom 220b and the second bottom 230 b.

Further, the signal processing device 300 is a data processing component of the entire transient voltage measurement system, the signal processing device 300 is electrically connected to the first bottom 220b and the second bottom 230b, respectively, the signal processing device 300 can determine a potential difference between the first bottom 220b and the second bottom 230b by obtaining electrical signals of the first bottom 220b and the second bottom 230b, and then determine the transient voltage of the explosive in the explosion reaction process (including the initiation stage and the explosion stage) according to the potential difference.

It should be noted that, because the electric charge accumulated by the explosion reaction is limited, the electric signals acquired by the first bottom 220b and the second bottom 230b are weak, and in order to improve the measurement accuracy of the transient voltage, the signal processing apparatus 300 may convert and process the corresponding electric signals as needed.

Illustratively, the signal processing apparatus 300 may specifically include a signal transforming module, a signal amplifying module and a signal calculating module, wherein the signal transforming module is configured to transform and noise-process a signal, the signal amplifying module is configured to amplify the signal (a signal amplifier may be used), and the calculating module is configured to perform calculation processing on the signal to obtain a desired output result.

The embodiment of the utility model provides an explosion reaction transient voltage measurement system, through excitation device 100, can provide the excitation source for the explosive in inner tube 230 for the explosive takes place the explosion reaction under the effect of excitation source, because the explosion reaction is gone on in explosion-proof device 200 inside, can avoid the damage that the explosion reaction brought; meanwhile, the charges generated in the explosion reaction process are transferred to the second cylinder bottom 230b, and the transferred charges change the original potential balance between the first cylinder bottom 220b and the second cylinder body and form a potential difference, so that the transient voltage in the explosion reaction process can be obtained by using the signal processing device 300 according to the potential difference, thereby providing a basis for researching the explosion reaction process.

In some embodiments, because the duration of the explosive reaction is very short, typically in the order of microseconds, and very little charge is generated. Therefore, in order to improve the detection accuracy of the transient voltage, the distance between the first bottom 220b and the second bottom 230b needs to be controlled in this embodiment.

Alternatively, as shown in fig. 1 and 2, the distance d between the first bottom 220b and the second bottom 230b is controlled to be between 200 micrometers and 500 micrometers (inclusive).

In an alternative embodiment, referring to fig. 1 to 3, the explosion-proof cylinder 210 includes an explosion-proof cylinder body 210a and an explosion-proof cover 210b, the explosion-proof cylinder body 210a is a cylinder structure with an open end, and one side of the explosion-proof cover 210b is rotatably connected to the open end of the explosion-proof cylinder body 210a through a rotating shaft 210c, so that the explosion-proof cylinder body 210a can be sealed and opened.

Further, the explosion-proof cover 210b and the explosion-proof cylinder body 210a are also provided with a connecting component, and after the explosion-proof cover 210b is rotated to be sealed with the explosion-proof cylinder body 210a, the connecting component on the explosion-proof cover 210b and the explosion-proof cylinder body 210a can be fixed by bolts 210d to prevent the explosion of the explosive from impacting the explosion-proof cover 210 b.

Optionally, a cable opening is formed in the explosion-proof cover 210b, since the signal processing device 300 is electrically connected to the first bottom 220b and the second bottom 230b through two connecting wires, and the signal processing device 300 is located outside the explosion-proof device 200, the connecting wire connected to the signal processing device 300 needs to pass through the cable opening to be connected to the first bottom 220b and the second bottom 230b inside.

Alternatively, and with continued reference to fig. 3, for explosives that require a light-activated source to be activated, a transparent window 212 is provided in the blast resistant cover 210b with the activation device 100 facing the transparent window 212 such that the light-activated source can be directed at the explosive to activate the explosive to react explosively. Wherein, light-transmitting window body adopts high strength light material to make, for example: organic glass.

Alternatively, for explosives that require an electrical activation source to be activated, activation device 100 includes a conductive lead extending from the cable opening to inner barrel 230 for generating an electrical activation source (e.g., a spark) to activate the explosive to cause an explosive reaction.

It will be appreciated that the conductive leads of this embodiment share the same cable openings as the connecting wires of the previous embodiments. Of course, the explosion-proof cover 210b may be provided with an opening for passing a conductive lead.

Alternatively, the open ends of the inner cylinder 230 and the outer cylinder 220 are not flush with the open end of the explosion-proof cylinder 210, specifically, the open ends of the inner cylinder 230 and the outer cylinder 220 are flush with each other and are lower than the open end of the explosion-proof cylinder 210, so that an inner explosion-proof cover can be respectively arranged at the open ends of the inner cylinder 230 and the outer cylinder 220, thereby further improving the safety of the explosion-proof device 200.

Further, the inner explosion-proof covers provided at the open ends of the inner cylinder 230 and the outer cylinder 220 are also provided with light-transmitting windows (not shown in the figure) corresponding to the transparent windows 212 of the explosion-proof cover 210b on the explosion-proof cylinder 210, respectively, so that the light excitation source can be emitted into the inner cylinder 230 through the two explosion-proof covers at the outside and inside.

In another embodiment, an internal explosion proof cover may be provided over only the opening of the inner barrel 230 for protection.

In an alternative embodiment, as shown in fig. 3, the embodiment provides a sleeving manner between the outer cylinder 220 and the explosion-proof cylinder 210, and between the inner cylinder 230 and the outer cylinder 220, which is as follows:

the inner side of the wall of the explosion-proof cylinder 210 is provided with a plurality of first groove structures 211, and the plurality of first groove structures 211 can be distributed annularly, linearly or spirally. The outer cylinder 220 includes a first cylinder bottom 220b and a first cylinder wall 220a, and the first cylinder bottom 220b and the first cylinder wall 220a form a cylinder structure with one open end.

In order to facilitate the sleeving of the outer cylinder 220 and the explosion-proof cylinder 210, a plurality of first protruding structures 221 are arranged on the outer side of the first cylinder wall 220a, and the plurality of first protruding structures 221 and the plurality of first groove structures 211 are arranged in a one-to-one correspondence manner, so that the sleeving of the explosion-proof cylinder 210 and the outer cylinder 220 can be realized through the alignment matching of the first groove structures 211 and the first protruding structures 221.

As shown in fig. 4, a plurality of second groove structures 222 are disposed on the inner side of the first cylinder wall 220a, and the plurality of second groove structures 222 may be distributed in a ring shape, a linear shape or a spiral shape. The inner cylinder 230 includes a second cylinder wall 230a and a second cylinder bottom 230b, the second cylinder bottom 230b and the second cylinder wall 230a form a cylinder structure with one open end, the inner cylinder 230 is consistent with the open end of the outer cylinder 220, and a preset space is provided between the first cylinder bottom 220b and the second cylinder bottom 230 b.

In fig. 4, a plurality of second protrusion structures 231 are arranged on the outer side of the second cylinder wall 230a, and the plurality of second protrusion structures 231 and the plurality of second groove structures 222 are arranged in a one-to-one correspondence manner, so that the outer cylinder 220 and the inner cylinder 230 can be sleeved by the alignment matching of the second groove structures 222 and the second protrusion structures 231.

In a specific assembling process, for convenience of installation, the inner cylinder 230 may be installed inside the outer cylinder 220, and then the inner cylinder 230 and the outer cylinder 220 may be installed together inside the explosion-proof cylinder 210.

Optionally, in order to improve the stability of the fit between the sample explosion-proof cylinder 210 and the outer cylinder 220, the plurality of first protrusion structures 221 and the plurality of first groove structures 211 are arranged in a spiral shape.

Alternatively, as shown in fig. 5 and 6, in order to improve the stability of the fit between the sample outer cylinder 220 and the inner cylinder 230, the plurality of second protrusion structures 231 and the plurality of second groove structures 222 are spirally arranged.

Alternatively, the first protrusion structures 221 and the second protrusion structures 231 may be continuous protrusions, or may be composed of a plurality of separated protrusions, as long as the whole is arranged in a spiral shape; the first groove structure 211 and the second groove structure 222 may be continuous grooves or may be composed of a plurality of separated grooves, as long as the whole is spirally arranged.

In another alternative embodiment, considering that the protrusion structures and the groove structures on different barrels can be interchanged, the inner side of the barrel wall of the explosion-proof barrel 210 in this embodiment is provided with a plurality of third protrusion structures (not shown), the outer barrel 220 comprises a first barrel bottom 220b and a first barrel wall 220a, and the outer side of the first barrel wall 220a is provided with a plurality of third groove structures (not shown) corresponding to the third protrusion structures.

The first cylinder wall 220a is provided at an inner side thereof with a plurality of fourth protrusion structures (not shown), the inner cylinder 230 includes a second cylinder bottom 230b and a second cylinder wall 230a, and the second cylinder wall 230a is provided at an outer side thereof with a plurality of fourth groove structures (not shown) corresponding to the fourth protrusion structures.

The explosion-proof cylinder 210 and the outer cylinder 220 are in socket joint through the alignment matching of the third protruding structure and the third groove structure, and the outer cylinder 220 and the inner cylinder 230 are in socket joint through the alignment matching of the fourth protruding structure and the fourth groove structure.

Optionally, in order to improve the stability of the fit between the sample explosion-proof cylinder 210 and the outer cylinder 220, the plurality of third protrusion structures and the plurality of third groove structures are all arranged in a spiral shape.

Alternatively, in order to improve the stability of the fit between the outer barrel 220 and the inner barrel 230, the plurality of fourth protrusion structures and the plurality of fourth groove structures are spirally arranged.

Alternatively, the third protrusion structure and the fourth protrusion structure may be continuous protrusions or may be composed of a plurality of separated protrusions, as long as the whole protrusions are arranged in a spiral shape; the third groove structure and the fourth groove structure can be continuous grooves or can be formed by a plurality of separated grooves, and the third groove structure and the fourth groove structure can be arranged spirally as long as the third groove structure and the fourth groove structure are integrally formed.

The embodiment of the utility model provides an in between explosion-proof section of thick bamboo 210 and urceolus 220 recess and arch be the spiral and arrange to all fix urceolus 220 in explosion-proof section of thick bamboo 210 in axial and circumference, all fix inner tube 230 in urceolus 220 in axial and circumference simultaneously, thereby effectively guarantee the influence of explosion shock wave to position between outer section of thick bamboo 220 and explosion-proof section of thick bamboo 210, inner tube 230 and urceolus 220, promoted measurement system's environmental stability.

Optionally, with continued reference to fig. 1, an embodiment of the present invention provides an explosion reaction transient voltage measurement system further including: a shielding case 400; the shielding box 400 surrounds the whole explosion-proof device 200, and the excitation device 100 is positioned outside the shielding box 400, so that the measurement accuracy of the transient voltage in the explosion reaction process is prevented from being influenced.

Specifically, the inner side wall and/or the outer side wall of the shielding box 400 are/is coated with electromagnetic shielding materials, and the anti-interference performance of the shielding box 400 is improved by using the electromagnetic shielding materials.

Optionally, with continued reference to fig. 2 and 3, the explosion-proof cylinder 210 is made of a metal cylinder structure and has high strength, so as to ensure explosion safety.

Optionally, since the areas of the first and second cylinder walls 220a and 230a are larger than the areas of the first and second cylinder bottoms 220b and 230b, in order to avoid diluting the capacitance and improving the accuracy of measuring the potential difference, the first and second cylinder walls 220a and 230a may be made of insulating materials, for example: the first cylinder wall 220a and the second cylinder wall 230a are ceramic cylinder walls.

Optionally, in order to improve explosion safety, the first bottom 220b and the second bottom 230b are both high-strength metal bottoms, such as: first base 220b and second base 230b are both made of copper material. The first bottom 220b and the first wall 220a are integrally formed or welded together, and the second bottom 230b and the second wall 230a are also integrally formed or welded together.

Optionally, the inner sidewall and/or the outer sidewall of the first cylinder wall 220a is coated with an electromagnetic shielding material.

Optionally, the inner sidewall and/or the outer sidewall of the second cylinder wall 230a is coated with an electromagnetic shielding material.

Optionally, the inner side wall and/or the outer side wall of the explosion-proof cylinder body 210a are coated with electromagnetic shielding material.

Optionally, the inner and/or outer side walls of the explosion-proof cover 210b are coated with electromagnetic shielding material.

Since the duration of the explosion is very short, in the order of microseconds, the generated charges are very small, and thus the explosion is very sensitive to external electromagnetic interference. Therefore, on the basis that the shielding box 400 is arranged outside the explosion-proof device 200, the embodiment realizes multiple shielding by coating the electromagnetic shielding material on the inner cylinder 230, the outer cylinder 220, the explosion-proof cylinder body 210a and the explosion-proof cover 210b, thereby effectively preventing external electromagnetic interference and further improving the accuracy of the measurement result

In an optional embodiment, the transient voltage measurement system for an explosion reaction provided in this embodiment further includes a pressure sensor disposed on the explosion-proof cover 210b, where the pressure sensor is configured to detect a pressure inside the explosion-proof device 200 during an explosion reaction of an explosive, and a pushing speed during explosion can be calculated from the measured explosion pressure, so as to provide a relevant parameter support for a kinetic study of the explosion reaction.

Those skilled in the art will appreciate that the various operations, methods, steps, measures, and arrangements of steps in the processes, methods, and arrangements of steps in the invention that have been discussed can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this disclosure can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present invention may also be alternated, modified, rearranged, decomposed, combined, or deleted.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in a specific situation by those skilled in the art.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. An explosion reaction transient voltage measurement system comprising:

the explosion-proof device comprises an explosion-proof cylinder, an outer cylinder and an inner cylinder which are sequentially sleeved from outside to inside; the outer cylinder comprises a first conductive cylinder bottom, the inner cylinder comprises a second conductive cylinder bottom, a preset gap is reserved between the first cylinder bottom and the second cylinder bottom, and the inner cylinder is used for containing explosives;

the excitation device is arranged outside the explosion-proof cylinder and is used for generating an excitation source so as to excite the explosive to generate an explosion reaction;

and the signal processing device is electrically connected with the first barrel bottom and the second barrel bottom respectively and is used for determining the transient voltage of the explosive in the explosion reaction process according to the potential difference value between the first barrel bottom and the second barrel bottom in the explosion reaction process.

2. The explosion reaction transient voltage measurement system of claim 1, wherein the predetermined distance between the first barrel bottom and the second barrel bottom is 200 to 500 micrometers.

3. The explosion reaction transient voltage measuring system of claim 1, wherein the explosion-proof cylinder comprises an explosion-proof cylinder body and an explosion-proof cover, the explosion-proof cylinder body is a cylinder structure with one end open;

the explosion-proof cover is rotationally connected with one open end of the explosion-proof cylinder body and is used for sealing the explosion-proof cylinder body; the explosion-proof cover is provided with a cable opening, the signal processing device is electrically connected with the first cylinder bottom and the second cylinder bottom through connecting wires respectively, and the connecting wires penetrate through the cable opening.

4. The explosion reaction transient voltage measuring system of claim 3, wherein a transparent window is disposed on the explosion-proof cover, and the excitation device faces the transparent window and is used for generating a light excitation source to excite explosives to generate an explosion reaction;

alternatively, the energiser device comprises an electrically conductive lead extending from the cable opening to the inner barrel for generating an electrical energising source to energise explosives to initiate an explosive reaction.

5. The system according to claim 3, wherein a plurality of first groove structures are disposed on an inner side of a wall of the explosion-proof cylinder, the outer cylinder further comprises a first wall, a plurality of first protrusion structures corresponding to the first groove structures are disposed on an outer side of the first wall, and the explosion-proof cylinder and the outer cylinder are sleeved by aligning and matching the first groove structures and the first protrusion structures;

the inner side of the first cylinder wall is provided with a plurality of second groove structures, the inner cylinder further comprises a second cylinder wall, the outer side of the second cylinder wall is provided with a plurality of second protruding structures corresponding to the second groove structures, and the outer cylinder and the inner cylinder are in sleeve joint through alignment matching of the second groove structures and the second protruding structures.

6. The system according to claim 3, wherein a plurality of third protrusion structures are disposed on an inner side of a wall of the explosion-proof cylinder, the outer cylinder further comprises a first cylinder wall, a plurality of third groove structures corresponding to the third protrusion structures are disposed on an outer side of the first cylinder wall, and the explosion-proof cylinder and the outer cylinder are sleeved by aligning and matching the third protrusion structures and the third groove structures;

the inner side of the first cylinder wall is provided with a plurality of fourth protruding structures, the inner cylinder further comprises a second cylinder wall, the outer side of the second cylinder wall is provided with a plurality of fourth groove structures corresponding to the fourth protruding structures, and the outer cylinder and the inner cylinder are in sleeve joint through alignment matching of the fourth protruding structures and the fourth groove structures.

7. The explosion reaction transient voltage measurement system of claim 5, wherein a plurality of the first protrusion structures and a plurality of the first groove structures are each arranged in a spiral shape;

and/or the plurality of second protruding structures and the plurality of second groove structures are spirally arranged.

8. The explosion reaction transient voltage measurement system of any one of claims 1 to 6, further comprising: a shielding box;

the explosion-proof device is surrounded by the shielding box, and the excitation device is positioned outside the shielding box; and the inner side wall and/or the outer side wall of the shielding box are/is coated with electromagnetic shielding materials.

9. The explosion reaction transient voltage measurement system of claim 5 or 6, comprising at least one of the following technical features:

the first cylinder wall and the second cylinder wall are both ceramic cylinder walls;

the first cylinder bottom and the second cylinder bottom are both high-strength metal cylinder bottoms;

the first cylinder wall and the second cylinder wall are coated with electromagnetic shielding materials;

the explosion-proof cylinder body and the explosion-proof cover are coated with electromagnetic shielding materials.

10. The explosion reaction transient voltage measurement system of claim 5 or 6, further comprising: and the pressure sensor is arranged on the explosion-proof cover and used for detecting the pressure in the explosion-proof device in the explosion reaction process.

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