CN212522785U - Dust explosion suppression system - Google Patents
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- CN212522785U CN212522785U CN202020692675.8U CN202020692675U CN212522785U CN 212522785 U CN212522785 U CN 212522785U CN 202020692675 U CN202020692675 U CN 202020692675U CN 212522785 U CN212522785 U CN 212522785U
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Abstract
The utility model provides a dust explosion suppression system uses on being protected equipment, include: one end of the controller is connected with the suppressor, and the other end of the controller is connected with the explosion pressure monitor; the suppressor is connected to the communicating pipeline of the protected equipment; the explosion pressure monitor is installed on the protected equipment, the installation position of the explosion pressure monitor is not fixed, and the explosion pressure monitor can be adjusted according to the type of the protected equipment. The utility model discloses mainly utilize explosion pressure monitor monitoring system internal pressure and pressure rate of rise, when monitoring by protective apparatus internal pressure and pressure rate of rise exceed the setting value, give controller transmission alarm signal, simultaneous control inhibitor work, the inhibitor can be in a few milliseconds through the pressure change that detects the explosion emergence initial stage, releases the inhibitor and stops the explosion process before reaching the destructive pressure.
Description
Technical Field
The utility model relates to a dust explosion suppression technical field particularly, especially relates to a dust explosion suppression system.
Background
In industrial production, a large amount of powder and dust is generated, and when the powder and dust are mixed with oxygen in air and reach a certain concentration, if a fire source exists, an explosion accident is generated. In industry, handling, transporting or storing certain materials is done by means of devices of light construction, but these devices are not designed to withstand the high pressures generated by the explosion of dust in a very short time, so that it is necessary to take safety precautions to protect the devices in order to handle the combustible solid particles.
SUMMERY OF THE UTILITY MODEL
In accordance with the technical problem set forth above, a dust suppression system is provided. The utility model discloses mainly utilize explosion pressure monitor monitoring system internal pressure and pressure rate of rise, when monitoring by protective apparatus internal pressure and pressure rate of rise exceed the setting value, give controller transmission alarm signal, simultaneous control inhibitor work, the inhibitor can be in a few milliseconds through the pressure change that detects the explosion emergence initial stage, releases the inhibitor and stops the explosion process before reaching the destructive pressure.
The utility model discloses a technical means as follows:
a dust suppression system applied to protected equipment comprises: one end of the controller is connected with the suppressor, and the other end of the controller is connected with the explosion pressure monitor; the suppressor is connected to the communicating pipeline of the protected equipment; the explosion pressure monitor is installed on the protected equipment, the installation position of the explosion pressure monitor is not fixed, and the explosion pressure monitor can be adjusted according to the type of the protected equipment.
Further, the controller comprises an intelligent detection unit and a control unit;
the intelligent detection unit comprises an integrated control panel for collecting static explosion pressure and explosion pressure rising rate in protected equipment, a control panel protective shell for protecting the integrated control panel from explosion hazard at any time according to explosion-proof grade requirements, and a connecting lead for transmitting collected alarm feedback signals to the control unit;
the control unit is used for recording static explosion pressure, explosion pressure rising rate, alarm times and time in protected equipment in real time and comprises a single-zone control unit and a multi-zone control unit; the single-zone control unit is used for controlling an explosion suppression system of one zone; the multi-zone control unit is used for controlling 8, 16 or 32 zone explosion suppression systems.
Further, the suppressor comprises a suppression bottle, a limit switch and an umbrella-shaped spray head assembly;
the limiting switch comprises a shell, the top of the shell is provided with a restraining bottle connecting end, the bottleneck of the restraining bottle enters the shell and is connected with the restraining bottle through the restraining bottle connecting end, an inlet channel is arranged at the bottom of the restraining bottle connecting end in the shell, a limiting cavity is arranged at the bottom of the inlet channel in the shell, and the outer diameter of the limiting cavity is larger than that of the inlet channel;
a channel block is arranged at the bottom of the inlet channel, the outer diameter of the channel block is matched with the inner diameter of the inlet channel, part of the channel block enters the inlet channel to block the inlet channel, the bottom of the channel block is fixedly connected with a limiting block, an O-shaped elastic sealing ring is arranged between the electrified block and the limiting block, the limiting block is arranged in the limiting cavity, one side of the limiting block is hinged with a fixed shaft fixed in the limiting cavity, and the other side of the limiting block is in contact connection with a trigger device;
the trigger device comprises a vertically arranged thimble, the bottom end of the thimble penetrates into the limiting cavity and is in contact connection with the upper surface of the high end of the obliquely arranged fixed block, the top end of the thimble is arranged in an explosive device protective shell, an explosive device is arranged in the explosive device protective shell, and the explosive device is connected with an explosive device for igniting the explosive device; the middle of the bottom of the fixed block is in contact connection with a fixed block puller bolt horizontally penetrating into the shell, and the outer edge of one side of the limiting block, which is far away from the fixed shaft, is in contact connection with the outer edge of the top of the lower end of the fixed block;
an inhibitor for high pressure is arranged in the inhibition bottle;
the bottom of the shell is connected with the umbrella-shaped spray head assembly through a pipeline.
Furthermore, the umbrella-shaped spray head assembly comprises a spray head shell and a spray head arranged in the spray head shell, the head of the spray head is umbrella-shaped, and a plurality of spray head holes uniformly distributed around the axis of the spray head are formed in the head of the spray head.
Furthermore, a spray head protective shell matched with the spray head is fixed at the head of the spray head, and a baffle clamped in the spray head shell is arranged at one end, close to the spray head, of the spray head shell.
Furthermore, a peephole is formed in the pipeline, and a blocking cover is installed at the peephole.
Furthermore, a pressure gauge connected with the bottle opening of the suppression bottle is arranged at the connection end of the suppression bottle.
Further, the inhibitor is a dried sodium bicarbonate reagent.
Further, the restraining bottle is made of 304 stainless steel materials.
Further, the explosion pressure monitor comprises a static explosion pressure monitoring device and/or a dynamic explosion pressure monitoring device;
the static explosion pressure monitoring device comprises a pressure sensing probe and an intrinsically safe explosion-proof lead, wherein the intrinsically safe explosion-proof lead is connected with the controller and is used for transmitting an alarm signal to the controller when the pressure in the protected equipment exceeds a set value;
the dynamic explosion pressure monitoring device comprises a pressure sensing probe, a pressure rising rate sensing probe and an intrinsically safe explosion-proof type conducting wire which are the same as the static explosion pressure monitoring device, wherein the intrinsically safe explosion-proof type conducting wire is connected with the controller, and when the pressure and the pressure rising rate of protected equipment exceed set values at the same time, the intrinsically safe explosion-proof type conducting wire is used for transmitting an alarm signal to the controller.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model provides a dust explosion suppression system, its explosion pressure monitor have the sensitive, fast, accurate advantage in the twinkling of an eye of action response.
2. The utility model provides a dust explosion suppression system, its controller can continuous monitoring probably lead to the dangerous condition of explosion, simultaneously, can handle the warning feedback signal that detects immediately, and actuating system suppresses the action, keeps apart the explosion of initial stage.
3. The utility model provides a dust explosion suppression system, its inhibitor can detect the pressure variation that the explosion took place the initial stage in several milliseconds, releases the inhibitor before reaching destruction pressure and stops the explosion process, and wherein, the inhibitor comes the lowering temperature to being less than the required temperature of material burning through the heat that absorbs the flame leading edge, can form the protective screen between the granule that does not burn, prevents that the heat from continuing the transmission.
Based on the reason, the utility model discloses can be in the dust field extensive popularization such as explosion-suppression.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced 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 inventive labor.
Fig. 1 is a schematic view of a dust explosion suppression system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a dust explosion suppression device according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a limit switch according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of an umbrella-shaped nozzle assembly according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of an explosion suppression process of a dust explosion suppression system in the embodiment of the present invention.
Fig. 6 is a schematic view of an explosion suppression system of a spray drying device according to an embodiment of the present invention.
Fig. 7 is a schematic view of an explosion suppression system of a grinding and pulverizing machine according to an embodiment of the present invention.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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 is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1, the utility model provides a dust explosion suppression system is used on being protected equipment, include: one end of the controller 8 is connected with the suppressor 7, and the other end of the controller 8 is connected with the explosion pressure monitor 6; the suppressor 7 is connected to a communicating pipeline of the protected equipment; the explosion pressure monitor 6 is mounted on the protected equipment, and the mounting position of the explosion pressure monitor is not fixed and can be adjusted according to the type of the protected equipment. Specifically, the method comprises the following steps:
the controller 8 comprises an intelligent detection unit and a control unit;
the intelligent detection unit comprises an integrated control panel for collecting static explosion pressure and explosion pressure rising rate in protected equipment, a control panel protective shell for protecting the integrated control panel from explosion hazard at any time according to explosion-proof grade requirements, and a connecting lead for transmitting collected alarm feedback signals to the control unit.
The control unit is used for recording static explosion pressure, explosion pressure rising rate, alarm times and time in protected equipment in real time and comprises a single-zone control unit and a multi-zone control unit; the single-zone control unit is used for controlling an explosion suppression system of one zone; the multi-zone control unit is used to control 8, 16 or 32 zone explosion suppression systems.
As shown in fig. 2, 3 and 4, the inhibitor 7 comprises an inhibitor bottle 1, a limit switch 2 and an umbrella-shaped spray head assembly 3;
the limit switch 2 comprises a shell 21, the top of the shell 21 is provided with a suppression bottle connecting end 22, the mouth of the suppression bottle 1 enters the shell 21 and is connected with the suppression bottle 1 through the suppression bottle connecting end 22, the shell 21 is provided with an inlet channel 23 at the bottom of the suppression bottle connecting end 22, the shell 21 is provided with a limit cavity 24 at the bottom of the inlet channel 23, and the outer diameter of the limit cavity 24 is larger than that of the inlet channel 23;
a channel block 25 is arranged at the bottom of the inlet channel 23, the outer diameter of the channel block 25 is matched with the inner diameter of the inlet channel 23, part of the channel block 25 enters the inlet channel 23 to block the inlet channel 23, the bottom of the channel block 25 is fixedly connected with a limit block 26, an O-shaped elastic sealing ring 27 is arranged between the electrified block 25 and the limit block 26, the limit block 27 is arranged in the limit cavity 24, one side of the limit block 26 is hinged with a fixed shaft 28 fixed in the limit cavity 24, and the other side of the limit block 26 is in contact connection with the trigger device 4;
the triggering device 4 comprises a vertically arranged thimble 41, the bottom end of the thimble 41 penetrates into the limiting cavity 24 and is in contact connection with the upper surface of the high end of an obliquely arranged fixed block 42, the top end of the thimble 41 is arranged in an explosive device protective shell 43, an explosive device 44 is arranged in the explosive device protective shell 43, and the explosive device 44 is connected with an explosive device 45 for detonating the explosive device 44; the middle of the bottom of the fixed block 42 is in contact connection with a fixed block tightening bolt 46 horizontally penetrating into the shell 21, and the outer edge of one side of the limiting block 26 far away from the fixed shaft 28 is in contact connection with the outer edge of the top of the lower end of the fixed block 42;
a high-pressure inhibitor 11 is arranged in the inhibition bottle 1;
the bottom of the shell 21 is connected with the umbrella-shaped spray head component 3 through a pipeline 5.
Preferably, the umbrella-shaped spray head assembly 3 comprises a spray head housing 31 and a spray head 32 arranged in the spray head housing 31, wherein the head of the spray head 32 is umbrella-shaped, and a plurality of spray head holes 33 uniformly distributed around the axis of the spray head 32 are arranged on the head of the spray head.
Preferably, a nozzle protective shell 34 matched with the nozzle 32 is fixed at the head of the nozzle 32, and a baffle 35 clamped in the nozzle shell 31 is arranged at one end of the nozzle shell 31 close to the nozzle 32.
Preferably, a peephole 51 is formed in the pipeline 5, and a blocking cover 52 is installed at the peephole 51.
Preferably, the suppression bottle connecting end 22 is provided with a pressure gauge 12 connected with the bottle mouth of the suppression bottle 1.
Preferably, the inhibitor 11 is a dried sodium bicarbonate reagent.
Preferably, the restraining bottle is made of 304 stainless steel materials.
Preferably, the explosion device 44 is a detonator, the detonation device 45 is an external control box, and after the control box sends a signal, a lead wire of the detonator is triggered and detonates the detonator.
The explosion pressure monitor 6 comprises a static explosion pressure monitoring device and/or a dynamic explosion pressure monitoring device;
the static explosion pressure monitoring device comprises a pressure sensing probe and an intrinsically safe explosion-proof conducting wire, wherein the intrinsically safe explosion-proof conducting wire is connected with the controller 8 and is used for transmitting an alarm signal to the controller 8 when the pressure in the protected equipment exceeds a set value. Wherein, static explosion pressure monitoring devices have the phenomenon of false alarm in the in-service use, for example, the sudden shutdown in the protected equipment, or the maloperation, can cause the pressure rise in the protected equipment, lead to the wrong report to produce, so the utility model discloses in not as preferred implementation mode, so the embodiment of the utility model does not do the detailed introduction;
the dynamic explosion pressure monitoring device comprises a pressure sensing probe, a pressure rising rate sensing probe and an intrinsically safe explosion-proof lead which are the same as the static explosion pressure monitoring device, the intrinsically safe explosion-proof lead is connected with the controller 8, and when the pressure and the pressure rising rate of the protected equipment exceed set values at the same time, the intrinsically safe explosion-proof lead is used for transmitting an alarm signal to the controller 8.
As shown in fig. 5, for the explosion suppression process schematic diagram of the dust explosion suppression system provided by the present invention, in the initial stage of explosion, the time recorded by the controller 8 is 0ms, and the pressure in the protected device is 0bar (g); when the time is 20ms, the explosion pressure monitor 6 monitors the pressure and the pressure rising rate in the protected equipment, the pressure is 0.05bar (g), the explosion pressure monitor 6 starts to work, an alarm signal is transmitted to the controller 8, the suppressor 7 is controlled to work, the time recorded by the controller 8 is 35ms, and the pressure is 0.08bar (g); when the inhibitor 7 acts, the limit switch is opened, the inhibitor in the inhibitor bottle is injected into protected equipment connected with the communicating pipeline at a high speed, explosion is inhibited, and the explosion process is stopped; when the time is 80ms, the pressure in the protected equipment is 0.2bar (g), and the explosion suppression is finished.
Example 1
As shown in fig. 6, the utility model provides a dust explosion suppression system is used on spraying, drying equipment, include: one end of the controller 8 is connected with the suppressor 7, and the other end of the controller 8 is connected with the explosion pressure monitor 6; the suppressor 7 is connected with a communicating pipeline of the spraying and drying equipment; the explosion pressure monitor 6 is installed on the spraying and drying equipment. Specifically, the method comprises the following steps:
the controller 8 comprises an intelligent detection unit and a control unit; the intelligent detection unit comprises an integrated control panel for collecting static explosion pressure and explosion pressure rising rate in the spraying and drying equipment, a control panel protective shell for protecting the integrated control panel from explosion hazard at any time according to explosion-proof grade requirements, and a connecting lead for transmitting collected alarm feedback signals to the control unit. The control unit is used for recording static explosion pressure, explosion pressure rising rate, alarm times and time in the spraying and drying equipment in real time and comprises a single-zone control unit and a multi-zone control unit; the single-zone control unit is used for controlling an explosion suppression system of one zone; the multi-zone control unit is used to control 8, 16 or 32 zone explosion suppression systems.
The inhibitor 7 comprises an inhibitor bottle 1, a limit switch 2 and an umbrella-shaped spray head assembly 3, when the inhibitor bottle 7 acts, the limit switch 2 is opened, the inhibitor 11 in the inhibitor bottle 1 is injected into a communication pipeline of spraying and drying equipment at a high speed, explosion is inhibited, and the explosion process is stopped.
The explosion pressure monitor 6 comprises a static explosion pressure monitoring device and/or a dynamic explosion pressure monitoring device; the static explosion pressure monitoring device comprises a pressure sensing probe and an intrinsically safe explosion-proof lead, wherein the intrinsically safe explosion-proof lead is connected with the controller 8 and is used for transmitting an alarm signal to the controller 8 when the pressure in the protected equipment exceeds a set value; the dynamic explosion pressure monitoring device comprises a pressure sensing probe, a pressure rising rate sensing probe and an intrinsically safe explosion-proof lead which are the same as the static explosion pressure monitoring device, the intrinsically safe explosion-proof lead is connected with the controller 8, and when the pressure and the pressure rising rate of the protected equipment exceed set values at the same time, the intrinsically safe explosion-proof lead is used for transmitting an alarm signal to the controller 8. Wherein, static explosion pressure monitoring devices have the phenomenon of false alarm in the in-service use, for example, the sudden shutdown in the protected equipment, or the maloperation, can cause the pressure rise in the protected equipment, lead to the wrong report to produce, so the utility model discloses in not as preferred implementation mode, so the embodiment of the utility model does not do the detailed introduction;
in the initial explosion stage, the controller 8 records time and pressure values; after a period of time, the explosion pressure monitor 6 monitors the pressure and the pressure rising rate in the spraying and drying equipment, when the pressure and the pressure rising rate in the spraying and drying equipment are monitored to exceed set values, an alarm signal is transmitted to the controller 8, the controller 8 records the time and the pressure value at the moment, the inhibitor 7 is controlled to work at the same time, the inhibitor 7 can detect the pressure change at the initial stage of explosion within a few milliseconds, and the inhibitor is released to stop the explosion process before the pressure reaches the destruction pressure.
Example 2
As shown in fig. 7, on the basis of embodiment 1, the dust explosion suppression system is also applied to a grinding and crushing machine. The method comprises the following steps: one end of the controller 8 is connected with the suppressor 7, and the other end of the controller 8 is connected with the explosion pressure monitor 6; the suppressor 7 is connected on a communicating pipeline of the grinding and crushing machine; the explosion pressure monitor 6 is mounted on the grinding and crushing machine. Specifically, the method comprises the following steps:
the controller 8 comprises an intelligent detection unit and a control unit; the intelligent detection unit comprises an integrated control panel for collecting static explosion pressure and explosion pressure rising rate in the grinding and crushing machine, a control panel protective shell for protecting the integrated control panel from explosion hazard at any time according to explosion-proof grade requirements, and a connecting lead for transmitting collected alarm feedback signals to the control unit. The control unit is used for recording static explosion pressure, explosion pressure rising rate, alarm times and time in the grinding and crushing machine in real time and comprises a single-zone control unit and a multi-zone control unit; the single-zone control unit is used for controlling an explosion suppression system of one zone; the multi-zone control unit is used to control 8, 16 or 32 zone explosion suppression systems.
The inhibitor 7 comprises an inhibitor bottle 1, a limit switch 2 and an umbrella-shaped spray head assembly 3, when the inhibitor bottle 7 acts, the limit switch 2 is opened, the inhibitor 11 in the inhibitor bottle 1 is injected into a communication pipeline of spraying and drying equipment at a high speed, explosion is inhibited, and the explosion process is stopped.
The explosion pressure monitor 6 comprises a static explosion pressure monitoring device and/or a dynamic explosion pressure monitoring device; the static explosion pressure monitoring device comprises a pressure sensing probe and an intrinsically safe explosion-proof lead, wherein the intrinsically safe explosion-proof lead is connected with the controller 8 and is used for transmitting an alarm signal to the controller 8 when the pressure in the protected equipment exceeds a set value; the dynamic explosion pressure monitoring device comprises a pressure sensing probe, a pressure rising rate sensing probe and an intrinsically safe explosion-proof lead which are the same as the static explosion pressure monitoring device, the intrinsically safe explosion-proof lead is connected with the controller 8, and when the pressure and the pressure rising rate of the protected equipment exceed set values at the same time, the intrinsically safe explosion-proof lead is used for transmitting an alarm signal to the controller 8. Wherein, static explosion pressure monitoring devices have the phenomenon of false alarm in the in-service use, for example, the sudden shutdown in the protected equipment, or the maloperation, can cause the pressure rise in the protected equipment, lead to the wrong report to produce, so the utility model discloses in not as preferred implementation mode, so the embodiment of the utility model does not do the detailed introduction;
in the initial explosion stage, the controller 8 records time and pressure values; after a period of time, the explosion pressure monitor 6 monitors the pressure and the pressure rising rate in the grinding and crushing machine, when the pressure and the pressure rising rate in the grinding and crushing machine are monitored to exceed set values, an alarm signal is transmitted to the controller 8, the controller 8 records the time and the pressure value at the moment, the inhibitor 7 is controlled to work at the same time, the inhibitor 7 can detect the pressure change at the initial stage of explosion within a few milliseconds, and the inhibitor is released to stop the explosion process before the pressure reaches the destruction pressure.
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. A dust suppression system applied to protected equipment is characterized by comprising: one end of the controller is connected with the suppressor, and the other end of the controller is connected with the explosion pressure monitor; the suppressor is connected to the communicating pipeline of the protected equipment; the explosion pressure monitor is installed on the protected equipment, the installation position of the explosion pressure monitor is not fixed, and the explosion pressure monitor can be adjusted according to the type of the protected equipment.
2. A dust suppression system as set forth in claim 1 wherein said controller includes a smart detection unit and a control unit;
the intelligent detection unit comprises an integrated control panel for collecting static explosion pressure and explosion pressure rising rate in protected equipment, a control panel protective shell for protecting the integrated control panel from explosion hazard at any time according to explosion-proof grade requirements, and a connecting lead for transmitting collected alarm feedback signals to the control unit;
the control unit is used for recording static explosion pressure, explosion pressure rising rate, alarm times and time in protected equipment in real time and comprises a single-zone control unit and a multi-zone control unit; the single-zone control unit is used for controlling an explosion suppression system of one zone; the multi-zone control unit is used for controlling 8, 16 or 32 zone explosion suppression systems.
3. A dust suppression system as set forth in claim 1 wherein said suppressor comprises a suppression bottle, a limit switch and an umbrella spray head assembly;
the limiting switch comprises a shell, the top of the shell is provided with a restraining bottle connecting end, the bottleneck of the restraining bottle enters the shell and is connected with the restraining bottle through the restraining bottle connecting end, an inlet channel is arranged at the bottom of the restraining bottle connecting end in the shell, a limiting cavity is arranged at the bottom of the inlet channel in the shell, and the outer diameter of the limiting cavity is larger than that of the inlet channel;
a channel block is arranged at the bottom of the inlet channel, the outer diameter of the channel block is matched with the inner diameter of the inlet channel, part of the channel block enters the inlet channel to block the inlet channel, the bottom of the channel block is fixedly connected with a limiting block, an O-shaped elastic sealing ring is arranged between the electrified block and the limiting block, the limiting block is arranged in the limiting cavity, one side of the limiting block is hinged with a fixed shaft fixed in the limiting cavity, and the other side of the limiting block is in contact connection with a trigger device;
the trigger device comprises a vertically arranged thimble, the bottom end of the thimble penetrates into the limiting cavity and is in contact connection with the upper surface of the high end of the obliquely arranged fixed block, the top end of the thimble is arranged in an explosive device protective shell, an explosive device is arranged in the explosive device protective shell, and the explosive device is connected with an explosive device for igniting the explosive device; the middle of the bottom of the fixed block is in contact connection with a fixed block puller bolt horizontally penetrating into the shell, and the outer edge of one side of the limiting block, which is far away from the fixed shaft, is in contact connection with the outer edge of the top of the lower end of the fixed block;
an inhibitor for high pressure is arranged in the inhibition bottle;
the bottom of the shell is connected with the umbrella-shaped spray head assembly through a pipeline.
4. A dust suppression system as set forth in claim 3 wherein said umbrella-shaped spray head assembly includes a spray head housing and a spray head disposed within said spray head housing, the head of said spray head being umbrella-shaped and having a plurality of spray head holes uniformly distributed about its axis.
5. A dust explosion suppression system according to claim 4, wherein a nozzle protective shell matched with the nozzle is fixed at the head of the nozzle, and a baffle plate clamped in the nozzle shell is arranged at one end of the nozzle shell close to the nozzle.
6. A dust suppression system according to claim 3, wherein a peephole is provided in said pipe, and a plug is installed at said peephole.
7. A dust suppression system as set forth in claim 3 wherein a pressure gauge is provided at said suppression bottle connection end in connection with the mouth of the suppression bottle.
8. A dust suppression system according to claim 3, wherein said suppressant is a dried sodium bicarbonate reagent.
9. A dust suppression system as set forth in claim 3 wherein said suppression bottle is made of 304 stainless steel material.
10. A dust suppression system according to claim 1, wherein said explosion pressure monitor comprises a static explosion pressure monitoring device and/or a dynamic explosion pressure monitoring device;
the static explosion pressure monitoring device comprises a pressure sensing probe and an intrinsically safe explosion-proof lead, wherein the intrinsically safe explosion-proof lead is connected with the controller and is used for transmitting an alarm signal to the controller when the pressure in the protected equipment exceeds a set value;
the dynamic explosion pressure monitoring device comprises a pressure sensing probe, a pressure rising rate sensing probe and an intrinsically safe explosion-proof type conducting wire which are the same as the static explosion pressure monitoring device, wherein the intrinsically safe explosion-proof type conducting wire is connected with the controller, and when the pressure and the pressure rising rate of protected equipment exceed set values at the same time, the intrinsically safe explosion-proof type conducting wire is used for transmitting an alarm signal to the controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020692675.8U CN212522785U (en) | 2020-04-29 | 2020-04-29 | Dust explosion suppression system |
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| CN202020692675.8U CN212522785U (en) | 2020-04-29 | 2020-04-29 | Dust explosion suppression system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111494837A (en) * | 2020-04-29 | 2020-08-07 | 大连理工度达安全工程有限公司 | Dust explosion suppression system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111494837A (en) * | 2020-04-29 | 2020-08-07 | 大连理工度达安全工程有限公司 | Dust explosion suppression system |
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