CN111665277A - Visual gas cylinder cabinet explosion venting experimental device and experimental method - Google Patents
Visual gas cylinder cabinet explosion venting experimental device and experimental method Download PDFInfo
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- CN111665277A CN111665277A CN202010573685.4A CN202010573685A CN111665277A CN 111665277 A CN111665277 A CN 111665277A CN 202010573685 A CN202010573685 A CN 202010573685A CN 111665277 A CN111665277 A CN 111665277A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
- G01N25/54—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining explosibility
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- G—PHYSICS
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/14—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force of explosions; for measuring the energy of projectiles
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Abstract
The invention relates to a visual gas cylinder cabinet explosion venting experimental device and an experimental method, which comprises a gas cylinder cabinet model, a pore plate and an explosion membrane, wherein the front side surface of the gas cylinder cabinet model is provided with an observation port, the top surface of the gas cylinder cabinet model is not closed, the observation port is provided with an observation window, the explosion membrane is covered on the top surface of the gas cylinder cabinet model, the pore plate is covered on the explosion membrane, the pore plate is locked with the gas cylinder cabinet, the periphery of the gas cylinder cabinet model is provided with an adaptive hole for installing an ignition electrode, the side wall of the gas cylinder cabinet model is provided with a pressure sensor and a gas distribution pipe communicated with the interior of the gas cylinder cabinet model, and the gas distribution pipe is provided with a gas distribution valve. The flame propagation device has the characteristics of flexible and convenient use, multiple variable parameters, reusability and visualized flame propagation process.
Description
Technical Field
The invention belongs to the field of industrial explosion and protection, and particularly relates to a visual gas cylinder cabinet explosion venting experimental device and an experimental method.
Background
Explosion pressure relief techniques are widely used. In the initial stage after explosion occurs in the equipment, when the internal pressure exceeds the opening pressure of the explosion diaphragm, the explosion diaphragm is broken, and unburned and burned gas is quickly released to the outside of the equipment through the explosion release port; therefore, the explosion pressure in the equipment is greatly reduced, and the purpose of protecting the equipment is achieved.
The explosion venting process is influenced by various parameters including explosion venting area, opening pressure of a blasting diaphragm, ignition position, type and concentration of combustible gas and the like, so that experimental research needs to be carried out on gas explosion pressure relief under different explosion venting conditions to determine the optimal explosion venting parameters. The existing explosion venting experimental device has no observation window and fixed explosion venting parameters, and cannot shoot the flame propagation process in equipment, and is also not convenient for researching the influence of multiple parameters on explosion pressure relief. In addition, at present, no device specially aiming at explosion venting research of the gas cylinder cabinet exists.
Disclosure of Invention
The invention provides a visual gas cylinder cabinet explosion venting experimental device and an experimental method.
The invention solves the technical problem by adopting the scheme that the visual gas cylinder cabinet explosion venting experimental device comprises a gas cylinder cabinet model, an orifice plate and an explosion diaphragm, wherein an observation port is arranged on the front side surface of the gas cylinder cabinet model, the top surface of the gas cylinder cabinet model is not closed, an observation window is arranged at the observation port, a rupture diaphragm cover is arranged on the top surface of the gas cylinder cabinet model, the orifice plate cover is arranged on the explosion diaphragm, the orifice plate is locked with a gas cylinder cabinet, an adaptive hole for installing an ignition electrode is formed in the peripheral side of the gas cylinder cabinet model, a pressure sensor and a gas distribution pipe communicated with the interior of the gas cylinder cabinet model are arranged on the side wall of the gas cylinder cabinet model, and a.
Furthermore, the observation window includes the framework, installs the transparent plate body in the framework, and the viewing aperture periphery is provided with flange A, and the framework is through bolt and flange A lock solid.
Furthermore, explosion venting holes are formed in the middle of the pore plate, a plurality of bolt holes are uniformly distributed in the periphery of the pore plate, a connecting flange B is arranged in the periphery of the top surface of the gas cylinder cabinet model, and the pore plate is locked with the connecting flange B through bolts.
Furthermore, at least two gas distribution pipes are arranged, and the two gas distribution pipes are respectively positioned at the upper part and the lower part of the peripheral side of the gas cylinder cabinet model.
Furthermore, the adapter holes are arranged at intervals from top to bottom.
Furthermore, the number of the adapting holes is at least three, and the three adapting holes are respectively positioned at the upper part, the middle part and the lower part of the periphery of the gas cylinder cabinet model.
Further, the gas cylinder cabinet model is a cuboid formed by welding steel plates.
An explosion venting experiment method for a gas cylinder cabinet comprises the following steps: (1) determining the explosion venting area, the opening pressure of a blasting diaphragm, the ignition position, the type and the concentration of combustible gas to be researched; (2) mounting the selected pore plate and the selected blasting diaphragm at an opening at the top of the explosion venting experimental model of the gas cylinder cabinet, and mounting the ignition electrode on a specified adaptive hole; (3) according to the Dalton partial pressure law, filling combustible gas to be researched into the gas cylinder cabinet explosion venting experimental model; (4) igniting the combustible gas by using an ignition electrode, shooting a flame propagation process through an observation window, and measuring explosion venting pressure by using a pressure sensor; (5) purging the gas cylinder cabinet for explosion venting by using fresh air through the air distribution pipe, and replacing combustion products; (6) changing explosion venting area, opening pressure of a blasting diaphragm, ignition position, combustible gas type and concentration parameters, repeating the steps (1) - (5), and researching an explosion pressure release mechanism by analyzing flame propagation and explosion pressure data.
Compared with the prior art, the invention has the following beneficial effects: simple structure, reasonable in design can adjust a plurality of parameters that influence explosion pressure to release, through the interact of analysis flame propagation and explosion pressure, explosion pressure release mechanism under the research multi-parameter coupling effect, and the data that obtain can be used to guide the gas cylinder cabinet design, has the characteristics that use is nimble convenient, variable parameter is many, repeatedly usable, the flame propagation process is visual, is convenient for study the influence of multiple parameter to explosion pressure to release.
Drawings
The invention is further described with reference to the following figures.
FIG. 1 is a schematic structural view of the apparatus;
FIG. 2 is a side view of the construction of an orifice plate.
In the figure: 1-gas cylinder cabinet model; 2-an observation window; 3-connecting flange a; 4-orifice plate; 5-explosion venting; 6-bolt; 7-blasting the membrane; 8-an upper fitting hole; 9-a fitting hole in the middle; 10-lower fitting hole; 11-an ignition electrode; 12-a pressure sensor; 13-an upper distributing valve; 14-gas distribution valve at lower part; 15-bolt hole.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1-2, a visual gas cylinder cabinet explosion venting experimental device comprises a gas cylinder cabinet model 1, an orifice plate 4 and an explosion membrane 7, wherein a viewing port is arranged on the front side surface of the gas cylinder cabinet model, the top surface of the gas cylinder cabinet model is not closed, a viewing window 2 is arranged at the viewing port, the explosion membrane is covered on the top surface of the gas cylinder cabinet model, an orifice plate cover is arranged on the explosion membrane, the orifice plate and the gas cylinder cabinet are locked by bolts 6, so that the explosion membrane is clamped between the orifice plate and the opening at the top of the gas cylinder cabinet model, an adaptive hole for installing an ignition electrode 11 is arranged on the peripheral side of the gas cylinder cabinet model, a pressure sensor 12 and a gas distribution pipe communicated with the inside of the gas cylinder cabinet model are arranged on the side wall of the gas cylinder cabinet model, and combustible gases of different types and. During experiment, according to the Dalton partial pressure law, combustible gas with certain concentration is filled in the closed experimental device; after ignition, when the explosion pressure in the device exceeds the opening pressure of the explosion diaphragm, the explosion diaphragm is broken and begins to explode; flame propagation in the explosion venting process is shot through the observation window, and meanwhile, the explosion venting pressure is measured by the pressure sensor.
In this embodiment, a threaded hole for installing the pressure sensor is formed in the side wall of the gas cylinder cabinet model.
In this embodiment, the observation window includes the framework, installs the transparent plate body in the framework, and the transparent plate body is with high transparent antiknock ya keli board, and the viewing aperture periphery is provided with flange A, and the framework is through the bolt and flange A lock solid.
In this embodiment, explosion venting holes 5 are formed in the middle of the pore plate, a plurality of bolt holes 15 are uniformly distributed in the periphery of the pore plate, a connecting flange B is arranged in the periphery of the top surface of the gas cylinder cabinet model, and the pore plate is locked with the connecting flange B through bolts.
In this embodiment, at least two gas distribution pipes are provided, and the two gas distribution pipes are respectively located at the upper part and the lower part of the periphery of the gas cylinder cabinet model.
In this embodiment, the plurality of the fitting holes are arranged from top to bottom at intervals.
In this embodiment, the number of the adapting holes is at least three, and the three adapting holes are respectively located at the upper part, the middle part and the lower part of the periphery of the gas cylinder cabinet model.
In this embodiment, the gas cylinder cabinet model is the cuboid that the steel sheet welding formed.
An explosion venting experiment method for a gas cylinder cabinet comprises the following steps: (1) determining the explosion venting area, the opening pressure of a blasting diaphragm, the ignition position, the type and the concentration of combustible gas to be researched; (2) mounting the selected pore plate and the selected blasting diaphragm at an opening at the top of the explosion venting experimental model of the gas cylinder cabinet, and mounting the ignition electrode on a specified adaptive hole; (3) according to the Dalton partial pressure law, filling combustible gas to be researched into the gas cylinder cabinet explosion venting experimental model; (4) igniting the combustible gas by using an ignition electrode, shooting a flame propagation process through an observation window, and measuring explosion venting pressure by using a pressure sensor; (5) purging the gas cylinder cabinet for explosion venting by using fresh air through the air distribution pipe, and replacing combustion products; (6) changing explosion venting area, opening pressure of a blasting diaphragm, ignition position, combustible gas type and concentration parameters, repeating the steps (1) - (5), and researching an explosion pressure release mechanism by analyzing flame propagation and explosion pressure data.
During the experiment, the pore plates with openings of different areas are selected to adjust the explosion venting area, the type and the thickness of the explosion membrane are changed to adjust the opening pressure of the explosion membrane, and ignition electrodes of different lengths are arranged on the adaptive holes at different positions to adjust the ignition position.
The device can adjust a plurality of parameters influencing the release of the explosion pressure, and the mechanism of the release of the explosion pressure under the multi-parameter coupling action is researched by analyzing the interaction of flame propagation and the explosion pressure. The data obtained can be used to guide the cabinet design.
The device has the characteristics of flexible and convenient use, multiple variable parameters, reusability and visual flame propagation process, and is convenient for researching the influence of various parameters on the explosion pressure relief.
The device can be used for carrying out the influence of parameters including explosion venting area, ignition position, explosion diaphragm opening pressure, combustible gas type and concentration on the explosion pressure relief in the gas cylinder cabinet.
If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected may be understood as: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a visual gas cylinder cabinet is let out and is exploded experimental apparatus which characterized in that: the gas cylinder cabinet type gas distribution device comprises a gas cylinder cabinet model, a pore plate and a blasting diaphragm, wherein the front side surface of the gas cylinder cabinet model is provided with an observation port, the top surface of the gas cylinder cabinet model is not sealed, an observation window is arranged at the observation port, the blasting diaphragm is covered on the top surface of the gas cylinder cabinet model, the pore plate is covered on the blasting diaphragm, the pore plate is locked with the gas cylinder cabinet, an adaptive hole for installing an ignition electrode is arranged on the peripheral side of the gas cylinder cabinet model, a pressure sensor and a gas distribution pipe communicated with the interior of the gas cylinder cabinet model are arranged on the side wall of the.
2. The visual explosion venting experimental device for the gas cylinder cabinet according to claim 1, characterized in that: the observation window includes the framework, installs the transparent plate body in the framework, and the viewing aperture periphery is provided with flange A, and the framework is through bolt and flange A lock solid.
3. The visual explosion venting experimental device for the gas cylinder cabinet according to claim 1, characterized in that: the gas cylinder cabinet model is characterized in that explosion venting holes are formed in the middle of the pore plate, a plurality of bolt holes are uniformly distributed in the periphery of the pore plate, a connecting flange B is arranged in the periphery of the top surface of the gas cylinder cabinet model, and the pore plate is locked with the connecting flange B through bolts.
4. The visual explosion venting experimental device for the gas cylinder cabinet according to claim 1, characterized in that: the gas distribution pipes are arranged at least two and are respectively positioned at the upper part and the lower part of the peripheral side of the gas cylinder cabinet model.
5. The visual explosion venting experimental device for the gas cylinder cabinet according to claim 1, characterized in that: the adapter holes are arranged at intervals from top to bottom.
6. The visual explosion venting experimental device for the gas cylinder cabinet according to claim 5, characterized in that: the number of the adapting holes is at least three, and the three adapting holes are respectively positioned at the upper part, the middle part and the lower part of the periphery of the gas cylinder cabinet model.
7. The visual explosion venting experimental device for the gas cylinder cabinet according to claim 1, characterized in that: the gas cylinder cabinet model is a cuboid formed by welding steel plates.
8. A gas cylinder cabinet explosion venting experimental method adopts the visual gas cylinder cabinet explosion venting experimental device as claimed in claim 1, and is characterized by comprising the following steps: (1) determining the explosion venting area, the opening pressure of a blasting diaphragm, the ignition position, the type and the concentration of combustible gas to be researched; (2) mounting the selected pore plate and the selected blasting diaphragm at an opening at the top of the explosion venting experimental model of the gas cylinder cabinet, and mounting the ignition electrode on a specified adaptive hole; (3) according to the Dalton partial pressure law, filling combustible gas to be researched into the gas cylinder cabinet explosion venting experimental model; (4) igniting the combustible gas by using an ignition electrode, shooting a flame propagation process through an observation window, and measuring explosion venting pressure by using a pressure sensor; (5) purging the gas cylinder cabinet for explosion venting by using fresh air through the air distribution pipe, and replacing combustion products; (6) changing explosion venting area, opening pressure of a blasting diaphragm, ignition position, combustible gas type and concentration parameters, repeating the steps (1) - (5), and researching an explosion pressure release mechanism by analyzing flame propagation and explosion pressure data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010573685.4A CN111665277A (en) | 2020-06-22 | 2020-06-22 | Visual gas cylinder cabinet explosion venting experimental device and experimental method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010573685.4A CN111665277A (en) | 2020-06-22 | 2020-06-22 | Visual gas cylinder cabinet explosion venting experimental device and experimental method |
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| CN111665277A true CN111665277A (en) | 2020-09-15 |
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| CN202010573685.4A Pending CN111665277A (en) | 2020-06-22 | 2020-06-22 | Visual gas cylinder cabinet explosion venting experimental device and experimental method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575719A (en) * | 2022-03-02 | 2022-06-03 | 常州大学 | Let out and explode a mouthful area adjustable device |
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| JP2011220813A (en) * | 2010-04-08 | 2011-11-04 | Sumitomo Chemical Co Ltd | Dust explosion test apparatus and dust explosion test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575719A (en) * | 2022-03-02 | 2022-06-03 | 常州大学 | Let out and explode a mouthful area adjustable device |
| CN114575719B (en) * | 2022-03-02 | 2024-04-30 | 常州大学 | Explosion venting port area adjustable device |
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Application publication date: 20200915 |