Combustion and explosion experiment system
阅读说明:本技术 燃爆实验系统 (Combustion and explosion experiment system ) 是由 陈志峰 王悦 陆卫东 郭新武 韦刚 陈香瑾 于 2019-11-05 设计创作,主要内容包括:本申请提供了一种燃爆实验系统,涉及燃爆实验领域,包括:燃爆容器;混合气源,用于提供混合气体,并与燃爆容器连通,以将混合气体通入燃爆容器;气体组分检测装置,混合气源与气体组分检测装置连通,气体组分检测装置用于检测混合气体中的各气体组分占比。本申请通过设置与混合气源连通的气体组分检测装置,检测混合气体中的气体组分占比,一定程度上解决现有技术中,燃爆实验过程中多组分气体混合浓度缺乏精准控制,容易导致实验数据产生较大的误差的技术问题。(The application provides a blasting experiment system relates to the blasting experiment field, includes: a blasting container; the mixed gas source is used for providing mixed gas and is communicated with the blasting container so as to lead the mixed gas into the blasting container; and the gas component detection device is used for detecting the proportion of each gas component in the mixed gas. This application is through setting up the gaseous component detection device with mixed air supply intercommunication, and the gaseous component that detects among the mist accounts for the ratio, solves prior art to a certain extent, and the gas mixture concentration that explodes in the experimentation lacks accurate control, leads to the technical problem that experimental data produced great error easily.)
1. The explosion experiment system is characterized by comprising:
a blasting container;
the mixed gas source is used for providing mixed gas and is communicated with the blasting container so as to lead the mixed gas into the blasting container;
and the mixed gas source is communicated with the gas component detection device, and the gas component detection device is used for detecting the proportion of each gas component in the mixed gas.
2. The blasting experiment system of claim 1, wherein the mixed gas source comprises a first gas mixing mechanism, the first gas mixing mechanism comprising:
a pressure vessel, the pressure of the gas output by the pressure vessel being adjustable;
the gas mixing chamber is communicated with the pressure container through the third path;
the first flow component is arranged on the third path and is used for displaying and controlling the flow of the gas flowing through the first flow component;
and a second valve member provided in the third path for connecting or disconnecting the pressure vessel to the gas mixing chamber.
3. The blasting experiment system according to claim 2, wherein the first gas mixing mechanism further comprises a gas mixing spiral pipe, the gas mixing spiral pipe is formed into a spiral shape and is communicated with the gas mixing chamber, and a passivation layer for preventing the gas mixing spiral pipe from being corroded is formed on the inner wall of the gas mixing spiral pipe.
4. The blasting experiment system of claim 3, wherein the first gas mixing mechanism further comprises:
a first path communicating the gas mixing spiral tube with the gas component detecting device;
the second path is communicated with the gas mixing spiral pipe and the blasting container;
a first valve member or valve assembly disposed at the intersection of the first path and the second path and for controlling: the opening of the first path and the opening of the second path, the opening of the first path and the closing of the second path, the closing of the first path and the opening of the second path, and the closing of the first path and the closing of the second path;
and the first check valve member is arranged on the second path and used for limiting the gas in the blasting container to flow to the gas mixing spiral pipe.
5. The blasting test system of claim 3,
a cavity portion formed in the air mixing chamber, the cavity portion being formed in a segment shape, the plurality of pressure vessels being communicated with the cavity portion via a bottom surface of the segment-shaped cavity portion; the air mixing spiral pipe is communicated with the cavity part through the cambered surface of the cavity part in the shape of a spherical segment;
the junction of the bottom surface and the cambered surface is formed into a fillet.
6. The blasting experiment system according to any one of claims 1 to 5, wherein the mixed gas source further comprises a second gas mixing mechanism, and the second gas mixing mechanism comprises:
a vaporizing chamber for containing a mixed liquid and vaporizing the mixed liquid into a mixed vapor;
a gas homogenizing chamber which is communicated with the gasification chamber and is used for stabilizing the flow rate of the mixed steam;
and a fourth path communicating the gas equalizing chamber with the gas component detecting device.
7. The blasting experiment system of claim 6, wherein the second gas mixing mechanism further comprises:
a second flow member disposed on the fourth path for displaying and controlling a flow rate of the mixed vapor flowing through the second flow member;
a fifth path for communicating the gas equalizing chamber with the blasting container;
a third valve member or valve assembly disposed at the intersection of the fourth path and the fifth path and configured to control: the fourth path is opened and the fifth path is opened, the fourth path is opened and the fifth path is closed, the fourth path is closed and the fifth path is opened, and the fourth path is closed and the fifth path is closed;
and the second check valve member is arranged on the fifth path and used for limiting the gas in the blasting container to flow to the gas equalizing chamber.
8. The blasting experiment system of claim 7, wherein the gas equalizing chamber comprises:
the gas homogenizing fan blade is arranged at the communication position of the gas homogenizing chamber and the gasification chamber and used for fully mixing the mixed steam and stabilizing the flow rate of the mixed steam.
9. The blasting experiment system of claim 6, wherein the gasification chamber comprises:
a containing and heating section for containing the mixed liquid and heating the mixed liquid;
a first plate member disposed above the receiving heating part, one end of the first plate member in a first direction defining a first preset gap together with an inner side portion of the gasification chamber;
a second plate member disposed above the first plate member on a side opposite the first predetermined gap, the second plate member defining a second predetermined gap in the first direction with an inner side of the gasification chamber.
10. The blasting test system according to claim 6, further comprising a vacuum extraction device in communication with the blasting vessel.
Technical Field
The application relates to the field of combustion and explosion experiments, in particular to a combustion and explosion experiment system.
Background
Disclosure of Invention
In view of this, the application provides an explosion experimental system, and aim at to a certain extent solves among the prior art, and the explosion experimental process multicomponent gas mixture concentration lacks accurate control, leads to the technical problem that experimental data produces great error easily.
The application provides an explosion experimental system, explosion experimental system includes:
a blasting container;
the mixed gas source is used for providing mixed gas and is communicated with the blasting container so as to lead the mixed gas into the blasting container;
and the mixed gas source is communicated with the gas component detection device, and the gas component detection device is used for detecting the proportion of each gas component in the mixed gas.
Preferably, the mixed gas source comprises a first gas mixing mechanism, and the first gas mixing mechanism comprises:
a pressure vessel, the pressure of the gas output by the pressure vessel being adjustable;
the gas mixing chamber is communicated with the pressure container through the third path;
the first flow component is arranged on the third path and is used for displaying and controlling the flow of the gas flowing through the first flow component;
and a second valve member provided in the third path for connecting or disconnecting the pressure vessel to the gas mixing chamber.
Preferably, the first gas mixing mechanism further comprises a gas mixing spiral pipe, the gas mixing spiral pipe is formed into a spiral shape and is communicated with the gas mixing chamber, and a passivation layer for preventing the gas mixing spiral pipe from being corroded is formed on the inner wall of the gas mixing spiral pipe.
Preferably, the first air mixing mechanism further comprises:
a first path communicating the gas mixing spiral tube with the gas component detecting device;
the second path is communicated with the gas mixing spiral pipe and the blasting container;
a first valve member or valve assembly disposed at the intersection of the first path and the second path and for controlling: the opening of the first path and the opening of the second path, the opening of the first path and the closing of the second path, the closing of the first path and the opening of the second path, and the closing of the first path and the closing of the second path;
and the first check valve member is arranged on the second path and used for limiting the gas in the blasting container to flow to the gas mixing spiral pipe.
Preferably, the air mixing chamber is formed with a cavity portion formed in a segment shape, and the plurality of pressure vessels communicate with the cavity portion via a bottom surface of the segment-shaped cavity portion; the air mixing spiral pipe is communicated with the cavity part through the cambered surface of the cavity part in the shape of a spherical segment;
the junction of the bottom surface and the cambered surface is formed into a fillet.
Preferably, the mixed gas source further comprises a second gas mixing mechanism, and the second gas mixing mechanism comprises:
a vaporizing chamber for containing a mixed liquid and vaporizing the mixed liquid into a mixed vapor;
a gas homogenizing chamber which is communicated with the gasification chamber and is used for stabilizing the flow rate of the mixed steam;
and a fourth path communicating the gas equalizing chamber with the gas component detecting device.
Preferably, the second air mixing mechanism further comprises:
a second flow member disposed on the fourth path for displaying and controlling a flow rate of the mixed vapor flowing through the second flow member;
a fifth path for communicating the gas equalizing chamber with the blasting container;
a third valve member or valve assembly disposed at the intersection of the fourth path and the fifth path and configured to control: the fourth path is opened and the fifth path is opened, the fourth path is opened and the fifth path is closed, the fourth path is closed and the fifth path is opened, and the fourth path is closed and the fifth path is closed;
and the second check valve member is arranged on the fifth path and used for limiting the gas in the blasting container to flow to the gas equalizing chamber.
Preferably, the gas equalizing chamber comprises:
the gas homogenizing fan blade is arranged at the communication position of the gas homogenizing chamber and the gasification chamber and used for fully mixing the mixed steam and stabilizing the flow rate of the mixed steam.
Preferably, the gasification chamber comprises:
a containing and heating section for containing the mixed liquid and heating the mixed liquid;
a first plate member disposed above the receiving heating part, one end of the first plate member in a first direction defining a first preset gap together with an inner side portion of the gasification chamber;
a second plate member disposed above the first plate member on a side opposite the first predetermined gap, the second plate member defining a second predetermined gap in the first direction with an inner side of the gasification chamber.
Preferably, the blasting experiment system further comprises a vacuum extraction device, and the vacuum extraction device is communicated with the blasting container.
This application is through setting up the gaseous component detection device with mixed air supply intercommunication, and the gaseous component that detects among the mist accounts for the ratio, solves prior art to a certain extent, and the gas mixture concentration that explodes in the experimentation lacks accurate control, leads to the technical problem that experimental data produced great error easily.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 shows a schematic view of an assembly drawing of a blasting test system;
FIG. 2 is a schematic view showing the connection between the air mixing chamber and the air mixing spiral pipe;
FIG. 3 shows a schematic view of the connection of the surge chamber to the gasification chamber;
fig. 4 shows a schematic diagram of the operation of the explosion experiment system.
Reference numerals:
1-a gas cylinder; 2-a pressure reducing valve; 3-a first flow meter; 4, switching on and off the electromagnetic valve; 5-air mixing chamber; 6-gas mixing spiral pipe; 7-a first valve member; 8-a first one-way stop valve; 9-a second one-way stop valve; 10-line pressure sensor; 11-a third valve member; 12-a second flow meter; 13-gas homogenizing chamber; 14-homogenizing fan blades; 15-an air pump; 16-a gasification chamber; 17 a-a first plate member; 17 b-a second plate member; 171-a first preset gap; 172-a second preset gap; 18-steamer and heating plate; 19-liquid inlet; 20-gas chromatography; 21-gas chromatograph workstation; 22-high pressure inlet end; 23-an intake valve; 24-an air compressor; 25-air compressor pressure gauge; 26-a third one-way stop valve; 27-a liquid and powder storage chamber; 28-vacuum pump; 29-sensor test point; 30-a temperature sensor; 31-vacuum degree meter; 32-ball safety valve; 33-wire electrode; 34-an intra-ball pressure sensor; 35-observation window; 36-ball pressure gauge; 37-blasting ball. a-a first path; b-a second path; c-a third path; d-a fourth path; e-the fifth path.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically 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 application can be understood in a specific case by those of ordinary skill in the art.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
FIG. 1 shows a schematic view of an assembly drawing of a blasting test system; FIG. 2 is a schematic view showing the connection between the air mixing chamber and the air mixing spiral pipe; FIG. 3 shows a schematic view of the connection of the surge chamber to the gasification chamber; fig. 4 shows a schematic diagram of the operation of the explosion experiment system.
Referring to fig. 1 to 4, the explosion experiment system provided in this embodiment includes: the explosion container, the mixed gas source, the gas component detection device and the vacuum extraction device, and the connection relationship and the working principle among the above structures will be described in detail below.
In this embodiment, the mixed gas source is used for providing mist, and the blasting container communicates with the mixed gas source to make mist can be let in the inside experiment that explodes that carries on of blasting container. In this embodiment, the blasting vessel employs a
In this embodiment, the first gas mixing mechanism can mix a plurality of gases that are gaseous at normal temperature to obtain a mixed gas. The first gas mixing mechanism comprises a pressure container and a
The pressure container may include a gas cylinder 1 storing a certain amount of gas and a pressure regulating member, the third path c and each path described below may be an explosion-proof pipeline common in the prior art, and the pressure regulating member may be a
In this embodiment, the first gas mixing mechanism has a plurality of third paths c, the components arranged on the third paths c are the same as those mentioned in the above description, and each third path c communicated with the
As shown in fig. 2, in the present embodiment, the
Because the third paths c are communicated with the cavity through the bottom surface of the cavity, and the tail ends of the third paths c are all in the same plane, when multiple gases flow into the cavity through the third paths c, except for the possibility of different speeds, the other physical states (such as speed directions) are the same, and under the condition, the airflow of the multiple gases is naturally converged at the joint of the gas mixing
In the present embodiment, in order to further increase the time for mixing the plurality of gases and improve the mixing efficiency, as shown in fig. 2, when viewed in the direction of fig. 2, the cross section of the
It should be noted that, in this embodiment, a rounded corner is formed at the boundary between the bottom surface of the cavity and the arc surface, so that the whole cavity of the
On the basis of the above-described features, the first air mixing mechanism may further include an air mixing
Because in the experimental process, the gas for the experiment may have corrosiveness, and to the gas mixing
In this embodiment, the gas mixing
In this embodiment, before the explosion experiment, each gas component in the mixed gas mixed by the gas-mixing
In this embodiment, the first path a and the second path b have an intersection, the
According to the above description, that is, when the first path a is turned on and the second path b is turned off, the
In order to avoid the interference of the air inside the blasting
In this embodiment, the vacuum extraction device may be a
In addition, in the present embodiment, the third path c may be provided with a line pressure sensor 10 (not shown on the third path c) to monitor the pressure change of the third path c in real time.
However, it is not limited thereto. In this embodiment, the control of the opening and closing of the first path a and the second path b may also be: the four-position three-way valve has the advantages that the on-off electromagnetic valve is arranged on the first path a behind the intersection of the first path a and the second path b, the other on-off electromagnetic valve is arranged on the second path b behind the intersection, and the two on-off electromagnetic valves form the first valve component.
According to the technical characteristics described above, the working process of the explosion experimental system in the case where the first gas mixing mechanism provides the mixed gas will be described below.
The method comprises the following steps: the
Step two: the
Step three: the
Step four: detonating the gas and measuring the parameters.
It should be noted that:
first, in the present embodiment, since the component ratios of each gas in the mixed gas are adjusted by adjusting the pressure and flow rate of each gas, the mixing process of the gases is a real-time and synchronous process. When the total amount of the required mixed gas reaches a preset value, all the third paths c can be closed.
Secondly, in this embodiment, the blasting
Thirdly, the above-mentioned gas refers to the gas stored in the single gas cylinder 1, but it does not mean that the gas stored in the single gas cylinder 1 is pure, that is, the gas stored in the single gas cylinder 1 itself may be a mixture of gases, such as natural gas.
Fourthly, at the moment of closing the first path a and opening the second path b, because the second path b is in a vacuum state, the pressure in the third path c, the
In this embodiment, the explosion experiment system further includes a control system, and the control system may be a PIC (Programmable Interrupt Controller) control system.
When the power supply of the explosion experiment system is started, the PIC control system controls the
In this embodiment, the mixed gas source further includes a second gas mixing mechanism, and in this embodiment, the second gas mixing mechanism mainly mixes the vapor generated by the evaporation of the multiple liquids, which will be described in detail below.
The second gas mixing mechanism comprises a
In this embodiment, an
As shown in fig. 3, the first direction may be a horizontal direction in the drawing, and a first
In this embodiment, the air-equalizing
In this embodiment, the
In addition, a second check valve member is further disposed on the fifth path e, and the second check valve member may be a second
According to the technical characteristics described above, the working process of the explosion experimental system in the case where the second gas mixing mechanism provides the mixed gas will be described below.
The method comprises the following steps: the
Step two: and the
Step three: the
Step four: detonating the gas and measuring the parameters.
In addition, in the present embodiment, the fifth path e may also be provided with the
In this embodiment, the gas mixing device further includes a third gas mixing mechanism, where the third gas mixing mechanism includes a high-pressure
In this embodiment, the third air mixing mechanism is a structure approximately symmetrical with respect to the blasting
In this embodiment, the third air mixing mechanism further includes a powder storing and storing
The working process of the third gas mixing mechanism for gas blasting experiment is described as follows:
the method comprises the following steps: the high-pressure
step two: and (5) detonating the mixed gas and measuring parameters.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all changes that can be made in the details of the description and drawings, or directly/indirectly implemented in other related technical fields, are intended to be embraced therein without departing from the spirit of the present application.
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