CN106422114A - Active explosion suppression system - Google Patents

Abstract

The invention provides an active detonation suppression system, which is arranged in a channel, comprising: a sensing device, fixed in the channel and used for sensing a deflagration signal or a detonation signal in the channel; a first shock tube, which is equipped with explosives , arranged downstream of the sensing device and communicated with the sensing device, and the explosives inside the first shock tube can be ignited by the sensing device when the sensing device senses a deflagration signal or a detonation signal to generate a directional explosion in the tube; and the first explosion suppression The anti-explosion device is equipped with anti-explosion material inside, and is arranged downstream of the first shock tube and communicated with the first shock tube, and the anti-explosion material in the first anti-explosion release device explodes inside the first shock tube. When the substance explodes, it can be released to suppress the deflagration or detonation in the channel. This kind of active explosion suppression system is completely independent, it can start work by itself without any power supply or electronic control device, and it works quickly, efficiently, with high reliability, wide application range and low cost.

Description

active explosion suppression system

technical field

The invention relates to the fields of oil, gas and chemical industry, in particular to an active explosion suppression system.

Background technique

In most oil and gas and chemical companies, pipelines are the main form of transportation for combustible gases. Due to the round and long characteristics of pipelines, any ignition source inside the pipeline will cause local combustion flames to accelerate along the pipeline, and in the It turns into a detonation in a very short period of time, causing great harm. Therefore, it has always been the goal of human exploration to study the anti-explosion suppression technology of combustible gas in pipelines. At the same time, the same situation will also occur in the places of similar pipeline structures such as mine shafts of coal mines and lift passages of grain storage warehouses.

Contents of the invention

In view of the problems existing in the background technology, the purpose of the present invention is to provide an active explosion suppression system, which can quickly suppress the occurrence of explosion accidents, has high reliability, wide application range and low cost.

In order to achieve the above object, the present invention provides an active detonation suppression system, which is arranged in the channel, including: a sensing device, fixed in the channel and used for sensing the deflagration signal or detonation signal in the channel; the first shock tube, Explosives are installed inside, arranged downstream of the sensing device and connected to the sensing device, and the explosives inside the first shock tube can be ignited by the sensing device when the sensing device senses a deflagration signal or a detonation signal to produce a directional explosion in the tube; And the first anti-explosion substance release device, which is equipped with anti-explosion substances, is arranged downstream of the first shock tube and communicated with the first shock tube, and the anti-explosion substances inside the first anti-explosion substance release device Explosives inside the wave tube can be released when detonated to suppress deflagration or detonation in the channel.

The beneficial effects of the present invention are as follows:

In the active detonation suppression system according to the present invention, when a deflagration signal or a detonation signal is generated in the channel, the sensing device can sense the signal in time and quickly ignite the explosives inside the first shock tube, so that in the first A directional explosion is generated in the shock tube and triggers the detonation port of the first explosion-suppression release device to release the explosion-suppressant inside the first explosion-suppression release device, thereby preventing explosion accidents in the channel. This active explosion suppression system is completely independent, it can start to work without any power supply or electronic control device, and it works quickly, efficiently and with high reliability. In addition, the active explosion suppression system of the present invention has a wide application range and low cost.

Description of drawings

Figure 1 is a simplified schematic diagram of an active explosion suppression system according to the present invention;

Fig. 2 is a sectional view cut along the A-A line in Fig. 1;

Fig. 3 is a cross-sectional view cut along line B-B in Fig. 1 .

Wherein, the reference signs are explained as follows:

1 induction device

2 first shock tube

3 The first explosion suppression release device

4 second shock tube

5 Second explosion suppression release device

6 protection net

T channel

detailed description

The active explosion suppression system according to the present invention will be described in detail below with reference to the accompanying drawings.

Referring to Fig. 1 to Fig. 3, the active explosion suppression system according to the present invention is arranged in the channel T (flowing combustible gas mixture, dust, air or other oxidant mixture), which includes: induction device 1, fixed in the channel T and used for The deflagration signal or detonation signal in the induction channel T; the first shock tube 2 is equipped with explosives inside, arranged downstream of the induction device 1 and communicated with the induction device 1, and the explosives inside the first shock tube 2 are in the When the sensing device 1 senses a deflagration signal or a detonation signal, it can be ignited by the sensing device 1 to generate a directional explosion in the tube; and a first explosion suppressant release device 3 is equipped with an explosion suppressant inside and is arranged downstream of the first shock tube 2 And connected to the first shock tube 2, and the explosion suppressant inside the first explosion suppressant release device 3 can be released when the explosive inside the first shock tube 2 explodes, so as to prevent the deflagration or detonation in the channel T Boom inhibits.

In the active detonation suppression system according to the present invention, when a deflagration signal or a detonation signal is generated in the channel T, the sensing device 1 can sense the signal in time and quickly ignite the explosive inside the first shock tube 2, thereby A directional explosion is generated in the first shock tube 2 and triggers the detonation port of the first anti-explosion release device 3 to release the anti-explosion materials inside the first anti-explosion release device 3, thus preventing the explosion in the passage T Explosion accident. This active explosion suppression system is completely independent, it can start to work without any power supply or electronic control device, and it works quickly, efficiently and with high reliability. In addition, the active explosion suppression system of the present invention has a wide application range and low cost.

In the active detonation suppression system according to the present invention, when a deflagration occurs in the channel T, the deflagration signal can be a deflagration flame transmitted from the upstream of the sensing device 1, or a deflagration pressure wave. What is added here is that the pressure change of the deflagration pressure wave generated in the channel T during deflagration is small during the transmission process along the channel T, and the sensing device 1 is usually the first to sense the pressure change of the deflagration flame instead of the deflagration pressure wave .

In the active detonation suppression system according to the present invention, when detonation occurs in the channel T, the detonation signal can be the detonation pressure wave transmitted from the upstream of the induction device 1, or the detonation flame. What is added here is that the pressure of the detonation pressure wave generated in the channel T during the detonation changes rapidly during the transmission process along the channel T, and the sensing device 1 is usually the first to sense the sudden pressure change of the detonation pressure wave and Non-detonation flames.

In the active explosion suppression system according to the present invention, referring to Fig. 1, the active explosion suppression system may further include: a second shock tube 4, inside of which explosives are housed, arranged downstream of the first explosion suppression release device 3 and via the second An anti-explosion release device 3 is connected to the first shock tube 2, and the explosive inside the second shock tube 4 can be ignited by the explosion of the explosive in the first shock tube 2 when detonation occurs in the channel T. Generate a directional explosion in the tube, wherein the mass density of the explosive in the second shock tube 4 is greater than the mass density of the explosive in the first shock tube 2; and the second explosion suppressant release device 5 is equipped with an explosion suppressant , arranged downstream of the second shock tube 4 and communicated with the second shock tube 4, and the explosion suppressant inside the second explosion suppressant release device 5 can be released when the explosive inside the second shock tube 4 explodes Come out to suppress the detonation in the channel T. It is supplemented here that, since the mass density of the explosives in the second shock tube 4 is greater than the mass density of the explosives in the first shock tube 2, when a deflagration occurs in the channel T, the first shock tube 2 When the explosives in the explosion-suppressant release device 3 explode, the intensity is not enough to ignite the explosives in the second shock tube 4, so the second shock tube 4 and the second explosion-suppression release device 5 only Works when a detonation occurs in channel T.

In the active explosion suppression system according to the present invention, with reference to Fig. 1, the active explosion suppression system may also include: a protective net 6, fixed on the inner wall of the channel T, and used to place the induction device 1 so that the induction device 1 is fixed on the channel T Inside. The protective net 6 wraps the induction device 1 completely to ensure that the induction device 1 will not be improperly activated (as artificially activated by miners in the mine due to improper operation). In addition, the protection net 6 and the induction device 1 are usually placed on the top of the channel T, and the induction device 1 must ensure that no additional fire source is generated in the channel T during operation, so as to prevent interference with the normal operation of the active explosion suppression system.

In the active detonation suppression system according to the present invention, the sensing device 1 may be a sensitive substance sensitive to deflagration signals and detonation signals. Further, the sensitive substance may be lead azide, of course it is not limited to this, and the sensitive substance may also be any other suitable substance.

In the active explosion suppression system according to the present invention, the explosive inside the first shock tube 2 may be pentaerythritol tetranitrate (abbreviated as PETN) or a mixture of PETN and aluminum. Further, the mass density of PETN may be 3 mg/m.

In the active explosion suppression system according to the present invention, the explosive inside the second shock tube 4 can be PETN or a mixture of PETN and aluminum. Further, the mass density of PETN may be 15-20 mg/m.

In the active explosion suppression system according to the present invention, the explosion suppression substance inside the first explosion suppression substance release device 3 may be one or more of silicon dioxide, water, and fire retardant particles.

In the active explosion suppression system according to the present invention, the explosion suppression substance inside the second explosion suppression substance release device 5 may be one or more of silicon dioxide, water, and fire retardant particles.

In the active explosion suppression system according to the present invention, referring to FIG. 2 , there may be multiple induction devices 1 , which are respectively arranged in the channel T along the circumferential direction of the channel T at intervals.

In the active explosion suppression system according to the present invention, referring to FIG. 3 , there may be multiple first explosion suppression release devices 3 , which are respectively arranged in the channel T along the circumferential direction of the channel T at intervals.

According to the active explosion suppression system of the present invention, in one embodiment (such as during deflagration), the number of the first explosion suppression material release device 3, the first shock tube 2, and the induction device 1 are all the same, and they are connected correspondingly.

According to the active explosion suppression system of the present invention, in one embodiment (such as during detonation), the first shock tube 2, the first explosion suppression material release device 3, the second shock tube 4, and the second explosion suppression material release The number of devices 5 is consistent with the number of sensing devices 1 , and they are connected correspondingly.

In the active explosion suppression system according to the present invention, both the first shock tube 2 and the first explosion suppression release device 3 are fixed on the inner wall of the channel T.

In the active explosion suppression system according to the present invention, both the second shock tube 4 and the second explosion suppression release device 5 are fixed on the inner wall of the channel T.

In the active explosion suppression system according to the present invention, the channel T can be a pipeline, a dust collector, a coal mine corridor, or a grain storage elevator.

According to the active explosion suppression system of the present invention, in one embodiment, the active explosion suppression system can be a linear system.

Claims (10)

1. a kind of active explosion suppression system, is arranged in passage (T), it is characterised in that active explosion suppression system includes：

Induction installation (1), is fixed in passage (T) and for the detonating signal in induction channels (T) or detonation signal；

First shock pipe (2), inside is equipped with explosive, is arranged on induction installation (1) downstream and is communicated in induction installation (1), and The internal explosive of first shock pipe (2) sensed can be filled when induction installation (1) senses detonating signal or detonation signal Put (1) to light and produce the blast of pipe interior orientation；And

First datonation-inhibition thing release device (3), internal equipped with datonation-inhibition thing, it is arranged on first shock pipe (2) downstream and is communicated in first Shock tube (2), and the internal datonation-inhibition thing in first datonation-inhibition thing release device (3) is in the internal explosive blast of first shock pipe (2) When can be released so as to produce inhibitory action to the detonation in passage (T) or detonation.

2. active explosion suppression system according to claim 1, it is characterised in that

When detonation is produced in passage (T), detonating signal is the deflagration flame and/or detonation for transmitting from induction installation (1) upstream Pressure wave；

When detonation is produced in passage (T), detonation signal is the detonation flame and/or detonation for transmitting from induction installation (1) upstream Pressure wave.

3. active explosion suppression system according to claim 1, it is characterised in that active explosion suppression system also includes：

Second shock pipe (4), internal equipped with explosive, it is arranged on the first datonation-inhibition thing release device (3) downstream and via the first suppression Quick-fried thing release device (3) are communicated in first shock pipe (2), and the internal explosive of second shock pipe (4) is produced in passage (T) Can be lighted by the explosive blast in first shock pipe (2) during detonation and the blast of pipe interior orientation is produced, wherein second shock pipe (4) mass density of the explosive in is more than the mass density of the explosive in first shock pipe (2)；And

Second datonation-inhibition thing release device (5), internal equipped with datonation-inhibition thing, it is arranged on second shock pipe (4) downstream and is communicated in second Shock tube (4), and the internal datonation-inhibition thing in second datonation-inhibition thing release device (5) is in the internal explosive blast of second shock pipe (4) When can be released so as to in passage (T) detonation produce inhibitory action.

4. active explosion suppression system according to claim 1, it is characterised in that active explosion suppression system also includes：

Catch net (6), is fixed on the inwall of passage (T), and for placing induction installation (1) so that induction installation (1) is fixing In passage (T).

5. active explosion suppression system according to claim 1, it is characterised in that induction installation (1) be to detonating signal and quick-fried The sensitive materials of Hong signal sensitivity.

6. active explosion suppression system according to claim 1, it is characterised in that active explosion suppression system be.

7. active explosion suppression system according to claim 1, it is characterised in that the internal explosive of first shock pipe (2) is The mixture of PETN or PETN and aluminum.

8. active explosion suppression system according to claim 4, it is characterised in that the internal explosive of second shock pipe (4) is The mixture of PETN or PETN and aluminum.

9. active explosion suppression system according to claim 1, it is characterised in that

Induction installation (1) for multiple, being provided at circumferentially spaced in passage (T) along passage (T) respectively；

Wherein, first shock pipe (2) is all consistent with the quantity of induction installation (1) with the quantity of first datonation-inhibition thing release device (3), Corresponding connection respectively.

10. explosion suppression system according to claim 3, it is characterised in that

Induction installation (1) for multiple, being provided at circumferentially spaced in passage (T) along passage (T) respectively；

First shock pipe (2), first datonation-inhibition thing release device (3), second shock pipe (4) and the second datonation-inhibition thing release device (5) quantity is all consistent with the quantity of induction installation (1), respectively corresponding connection.