CN111520610A - Silencing explosion venting device - Google Patents

Silencing explosion venting device Download PDF

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Publication number
CN111520610A
CN111520610A CN202010342236.9A CN202010342236A CN111520610A CN 111520610 A CN111520610 A CN 111520610A CN 202010342236 A CN202010342236 A CN 202010342236A CN 111520610 A CN111520610 A CN 111520610A
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CN
China
Prior art keywords
explosion
container
powder
explosion venting
venting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010342236.9A
Other languages
Chinese (zh)
Inventor
庞磊
赵俊娟
王文江
崔世奇
张志文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Institute of Petrochemical Technology
Beijing Municipal Institute of Labour Protection
Original Assignee
Beijing Institute of Petrochemical Technology
Beijing Municipal Institute of Labour Protection
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Institute of Petrochemical Technology, Beijing Municipal Institute of Labour Protection filed Critical Beijing Institute of Petrochemical Technology
Priority to CN202010342236.9A priority Critical patent/CN111520610A/en
Publication of CN111520610A publication Critical patent/CN111520610A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/02—Mixing fluids

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Basic Packing Technique (AREA)

Abstract

The utility model provides a device is exploded to noise elimination formula let out, includes: an explosive container; the vacuumizing device is used for vacuumizing the explosion container; the powder spraying device is used for injecting powder and air into the vacuumized explosion container; the ignition device ignites and detonates the mixture of the powder and the air injected into the explosion container; and an explosion venting portion for venting explosion generated in the explosion container.

Description

Silencing explosion venting device
Technical Field
The utility model belongs to the technical field of let out explode, this disclosure especially relates to a noise elimination formula let out explode device.
Background
The explosion venting technology is an effective disaster reduction technical means for preventing dust explosion disasters in industrial production.
However, due to space limitations, equipment density and other factors, in order to prevent the surrounding from being damaged by flame and pressure sprayed from the explosion venting port during explosion venting, enterprises often adopt a conduit explosion venting mode to perform safe explosion venting design of equipment when developing dust explosion-proof safety design or hidden danger treatment, and install a conduit outside the explosion venting port to guide explosion to a safety zone.
The noise generated by explosion venting of the dust explosion conduit has directivity, and the instantaneous impact noise is huge, so that once the noise occurs, the dust explosion conduit is extremely easy to damage human bodies. In the accident disaster assessment and related laboratory construction processes, instantaneous impact noise caused by effective control of the explosion venting of the conduit needs to be considered.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present disclosure provides a muffling explosion venting device.
The noise elimination type explosion venting device is realized by the following technical scheme.
A muffling explosion venting device comprising: an explosive container; the vacuumizing device is used for vacuumizing the explosion container; the powder spraying device is used for injecting powder and air into the vacuumized explosion container; the ignition device ignites and detonates the mixture of the powder and the air injected into the explosion container; and an explosion venting portion for venting explosion generated in the explosion container.
According to the noise elimination formula of at least one embodiment of this disclosure let out and explode the device, still include noise eliminator, noise eliminator is connected with letting out the portion of exploding, let out the portion of exploding and carry out the noise elimination.
According to the noise-elimination explosion venting device of at least one embodiment of the disclosure, the vacuumizing device comprises a vacuum pump, a first electromagnetic valve and a pressure gauge, the vacuum pump is communicated with the explosion container through the first electromagnetic valve, and the electromagnetic valve is used for controlling the air pumping speed of the vacuum pump to the explosion container; the pressure gauge is connected in the pipeline between the first electromagnetic valve and the explosion container and is used for measuring the gas pressure in the explosion container.
According to the muffling explosion venting device of at least one embodiment of the present disclosure, the powder spraying device includes a high pressure air bottle, a second electromagnetic valve, a pneumatic valve and a powder filling device, the powder filling device is used for placing powder for explosion, a part of the powder filling device is inserted into an explosion container, the high pressure air bottle is connected with the powder filling device through a pipeline, the second electromagnetic valve and the pneumatic valve are sequentially arranged in the pipeline between the high pressure air bottle and the powder filling device, and after the second electromagnetic valve is opened, high pressure air in the high pressure air bottle is enabled to flush the pneumatic valve and inject the powder in the powder filling device into the explosion container, so that a mixture of the powder and the air is formed in the explosion container.
According to the noise-reduction explosion venting device of at least one embodiment of the disclosure, the ignition device comprises a time delay switch and an ignition electrode connected with the time delay switch, the ignition electrode is inserted into the explosion container, the time delay switch is connected with the second electromagnetic valve, when the second electromagnetic valve is opened, the time delay switch is opened, and after a preset time delay time, the time delay switch starts the ignition electrode, and the ignition electrode detonates a mixture of powder and air injected into the explosion container.
According to at least one embodiment of this disclosure, the noise-abatement explosion venting device further includes a control and data acquisition system, the control and data acquisition system is respectively connected with the second electromagnetic valve and the time delay switch, the control and data acquisition system opens and closes the second electromagnetic valve, and the control and data acquisition system sets the time delay time.
According to the noise elimination formula of at least one embodiment of this disclosure let out and explode device, still include first pressure sensor and at least one second pressure sensor, first pressure sensor and second pressure sensor are connected with control and data acquisition system respectively, and first pressure sensor inserts explosion container for measure the pressure value in the explosion container, and second pressure sensor inserts to letting out among the explosion portion, is used for measuring the pressure value in letting out the explosion portion, and control and data acquisition system gathers and stores the pressure value that first pressure sensor gathered and the pressure value that second pressure sensor gathered.
According to the noise-elimination explosion venting device of at least one embodiment of the disclosure, the explosion venting part comprises an explosion venting film and an explosion venting pipe, the explosion venting film is arranged between the explosion container and the explosion venting pipe, and when the vacuum pumping device vacuumizes the explosion container, the explosion venting film prevents outside air from entering the explosion container through the explosion venting pipe.
According to the muffling explosion venting device of at least one embodiment of the present disclosure, the explosion venting membrane can be breached by the air flow generated by the explosion of the mixture of powder and air within the explosion container.
According to the noise-elimination explosion venting device of at least one embodiment of the present disclosure, the noise-elimination device includes a main pipe and an expansion pipe formed on the main pipe, a metal perforated plate is arranged in the expansion pipe, a cavity is formed between the metal perforated plate and the pipe wall of the expansion pipe, and glass fiber is arranged in the cavity.
According to at least one embodiment of the sound-deadening explosion venting device of the present disclosure, the pneumatic valve is a one-way valve.
According to the noise-elimination explosion venting device of at least one embodiment of the present disclosure, the explosion venting pipe is a stainless steel pipe.
According to the noise-damping explosion venting device of at least one embodiment of the present disclosure, the explosion venting membrane is a PE membrane.
According to the noise-damping explosion venting device of at least one embodiment of the disclosure, the main pipeline and the expansion pipeline are of an integrated structure.
According to the muffling explosion venting device of at least one embodiment of the present disclosure, the number of the second pressure sensors is three, and the three second pressure sensors are inserted into different axial positions of the explosion venting pipe of the explosion venting portion.
According to the noise-damping explosion venting device of at least one embodiment of the present disclosure, the main pipeline and the expansion pipeline are made of alloy materials.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
Fig. 1 is one of schematic structural views of a explosion venting apparatus according to one embodiment of the present disclosure.
Fig. 2 is a second schematic structural view of an explosion venting apparatus according to an embodiment of the present disclosure.
Fig. 3 is a schematic structural view of a muffler device of a explosion venting apparatus according to an embodiment of the present disclosure.
Description of the reference numerals
100 explosion venting device
11 vacuum-pumping device
111 vacuum pump
112 first electromagnetic valve
113 pressure gauge
12 powder spraying device
121 high-pressure air bottle
122 second electromagnetic valve
123 pneumatic valve
124 medicine filling device
13 control and data acquisition system
14 explosive container
141 observation mirror
15 ignition device
151 time delay switch
152 ignition electrode
16 explosion venting part
161 explosion venting film
162 explosion venting pipe
17 first pressure sensor
18 second pressure sensor
19 silencing device
191 main pipe
192 expansion conduit
193 glass fiber
194 perforated metal plate.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Accordingly, unless otherwise indicated, features of the various embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.
The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.
When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.
For descriptive purposes, the present disclosure may use spatially relative terms such as "below … …," below … …, "" below … …, "" below, "" above … …, "" above, "" … …, "" higher, "and" side (e.g., "in the sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.
Fig. 1 is a venting apparatus 100 of one embodiment of the present disclosure, comprising: an explosive container 14; a vacuumizing device 11, wherein the vacuumizing device 11 is used for vacuumizing the explosion container 14; the powder spraying device 12, the powder spraying device 12 is used for injecting powder and air into the evacuated explosion container 14; an ignition device 15, the ignition device 15 igniting and detonating the mixture of the powder and the air injected into the explosion container 14; and an explosion venting portion 16, the explosion venting portion 16 venting an explosion generated within the explosion container 14.
The explosion container 14 may be composed of a stainless steel cylindrical cavity and an observation mirror 141, the stainless steel cylindrical cavity and the observation mirror 141 are combined to form a cavity with a certain volume, so as to form a space where powder (dust) explodes, and the volume in the stainless steel cylindrical cavity is designed according to actual needs, such as 20L, 100L and the like; the observation mirror 141 is made of transparent explosion-proof glass and is used for observing the reaction process of dust or combustible gas explosion; the safe threshold of detonation pressure for the entire detonation vessel 14 is preferably 5 MPa.
The vacuum pumping device 11 is connected with the explosion container 14 through a pipeline.
According to a preferred embodiment of the present disclosure, as shown in fig. 1, the explosion venting device 100 further includes a noise eliminator 19, and the noise eliminator 19 is connected to the explosion venting portion 16 to eliminate noise of the explosion venting portion 16.
Fig. 3 shows the structure of the muffler device 19 of the explosion venting device 100.
As shown in fig. 3, the muffler device 19 includes a main pipe 191 and an expansion pipe 192 formed on the main pipe 191, a metal perforated plate 194 is disposed inside the expansion pipe 192, a cavity is formed between the metal perforated plate 194 and a pipe wall of the expansion pipe 192, and glass fibers 193 are disposed inside the cavity.
By connecting the muffler device 19 to the explosion venting portion 16, the noise of the air flow discharged from the explosion venting portion 16 enters the main pipe 191 and the expansion pipe 192 of the muffler device 19, and the noise energy is consumed by the metal perforated plate 194 resistant to pressure and high temperature, and then further consumed in the cavity filled with the glass fiber 193 having flame retardant property. Therefore, the noise of the airflow discharged from the explosion venting part 16 is controlled by the noise eliminator 19, and the harm caused by instantaneous impact noise during explosion venting of the explosion venting part 16 is effectively reduced.
The metal perforated plate 194 may be a metal micro-perforated plate.
Preferably, the main pipe 191 and the expansion pipe 192 are both cylindrical structures, and correspondingly, the metal perforated plate 194 is also cylindrical.
Preferably, the conduit 191 is of unitary construction with the expansion conduit 192.
Preferably, the main conduit 191 and the expansion conduit 192 are made of an alloy material, preferably an aluminum alloy material.
According to a preferred embodiment of the present disclosure, the explosion venting portion 16 includes an explosion venting membrane 161 and an explosion venting pipe 162, the explosion venting membrane 161 is disposed between the explosion container 14 and the explosion venting pipe 162, and when the vacuum pumping device 11 pumps vacuum to the explosion container 14, the explosion venting membrane 161 prevents outside air from entering the explosion container 14 through the explosion venting pipe 162.
The venting membrane 161 can be breached by the air stream created by the explosion of the mixture of powder and air within the explosive container 14. Preferably, the venting membrane 161 is a PE membrane.
The explosion venting pipe 162 is a stainless steel pipe.
According to an alternative embodiment of the present disclosure, a venting tube 162 is connected to the explosive container 14, and a venting membrane 161 is disposed within the venting tube 162 and adjacent to the explosive container 14.
According to a preferred embodiment of the present disclosure, as shown in fig. 1, the vacuum pumping device 11 of the explosion venting device 100 comprises a vacuum pump 111, a first electromagnetic valve 112 and a pressure gauge 113, wherein the vacuum pump 111 is communicated with the explosion container 14 through the first electromagnetic valve 112, and the electromagnetic valve 112 is used for controlling the air pumping speed of the explosion container 14 by the vacuum pump 111; a pressure gauge 113 is connected in the conduit between the first solenoid valve 112 and the explosive container 14 for measuring the gas pressure inside the explosive container 14.
The direction of the arrow in fig. 1 is the pumping direction of the vacuum pump 111.
According to a preferred embodiment of the present disclosure, the powder spraying device 12 of the explosion venting device 100 comprises a high pressure air bottle 121, a second electromagnetic valve 122, a pneumatic valve 123 and a medicine filling device 124, the medicine filling device 124 is used for placing powder for explosion, a part of the medicine filling device 124 is inserted into the explosion container 14, the high pressure air bottle 121 is connected with the medicine filling device 124 through a pipeline, the second electromagnetic valve 122 and the pneumatic valve 123 are sequentially arranged in the pipeline between the high pressure air bottle 121 and the medicine filling device 124, and when the second electromagnetic valve 122 is opened, the high pressure air in the high pressure air bottle 121 is enabled to flush the pneumatic valve 123 and inject the powder in the medicine filling device 124 into the explosion container 14, so that a mixture of the powder and the air is formed in the explosion container 14.
Since the powder (dust) in the filling device 124 is injected into the explosion container 14 by using the high-pressure air released from the high-pressure air bottle 121, the powder and the air form a uniform mixture, which facilitates the occurrence of an explosion in the explosion container 14.
The pneumatic valve 123 is a one-way valve, and the pneumatic valve 123 is opened only when the air flow from the high pressure air tank 121 to the explosion container 14 flows. The reverse explosive flow in the explosive container 14 does not blow open the pneumatic valve 123.
According to a preferred embodiment of the present disclosure, the ignition device 15 of the explosion venting device 100 includes a time delay switch 151 and an ignition electrode 152 connected to the time delay switch 151, the ignition electrode 152 is inserted into the explosion container 14, the time delay switch 151 is connected to the second electromagnetic valve 122, when the second electromagnetic valve 122 is opened, the time delay switch 151 is opened, and after a preset time delay time, the time delay switch 151 activates the ignition electrode 152, and the ignition electrode 152 ignites the mixture of the powder and the air injected into the explosion container 14.
According to the preferred embodiment of the present disclosure, the explosion venting device 100 further includes a control and data acquisition system 13, the control and data acquisition system 13 is respectively connected to the second electromagnetic valve 122 and the time delay switch 151, the control and data acquisition system 13 controls the second electromagnetic valve 122 to open and close, and the control and data acquisition system 13 sets the time delay time of the time delay switch 151.
The control and data acquisition system 13 may be a computer, a programmable logic device, an FPGA, or a single chip, etc.
According to the preferred embodiment of the present disclosure, the explosion venting device 100 further includes a first pressure sensor 17 and at least one second pressure sensor 18, the first pressure sensor 17 and the second pressure sensor 18 are respectively connected to the control and data acquisition system 13, the first pressure sensor 17 is inserted into the explosion container 14 for measuring the pressure value inside the explosion container 14, the second pressure sensor 18 is inserted into the explosion venting portion 16 for measuring the pressure value inside the explosion venting portion 16, and the control and data acquisition system 13 collects and stores the pressure value collected by the first pressure sensor 17 and the pressure value collected by the second pressure sensor 18.
As shown in fig. 1, the number of the second pressure sensors 18 is three, and three second pressure sensors 18 are inserted into different axial positions of the explosion venting pipe 162 of the explosion venting portion 16.
According to an alternative embodiment of the present disclosure, as shown in fig. 2, the explosion venting device 100 may not have the muffler device 19.
The explosion venting device 100 includes: an explosive container 14; a vacuumizing device 11, wherein the vacuumizing device 11 is used for vacuumizing the explosion container 14; the powder spraying device 12, the powder spraying device 12 is used for injecting powder and air into the evacuated explosion container 14; an ignition device 15, the ignition device 15 igniting and detonating the mixture of the powder and the air injected into the explosion container 14; and an explosion venting portion 16, the explosion venting portion 16 venting an explosion generated within the explosion container 14.
Preferably, the explosion venting portion 16 includes an explosion venting membrane 161 and an explosion venting pipe 162, the explosion venting membrane 161 is disposed between the explosion container 14 and the explosion venting pipe 162, and when the vacuum pumping device 11 pumps vacuum to the explosion container 14, the explosion venting membrane 161 prevents outside air from entering the explosion container 14 through the explosion venting pipe 162.
Preferably, the vacuum pumping device 11 of the explosion venting device 100 comprises a vacuum pump 111, a first electromagnetic valve 112 and a pressure gauge 113, the vacuum pump 111 is communicated with the explosion container 14 through the first electromagnetic valve 112, and the electromagnetic valve 112 is used for controlling the air pumping speed of the vacuum pump 111 to the explosion container 14; a pressure gauge 113 is connected in the conduit between the first solenoid valve 112 and the explosive container 14 for measuring the gas pressure inside the explosive container 14.
Preferably, the powder spraying device 12 of the explosion venting device 100 comprises a high pressure air bottle 121, a second electromagnetic valve 122, a pneumatic valve 123 and a medicine filling device 124, wherein the medicine filling device 124 is used for placing powder for explosion, a part of the medicine filling device 124 is inserted into the explosion container 14, the high pressure air bottle 121 is connected with the medicine filling device 124 through a pipeline, the second electromagnetic valve 122 and the pneumatic valve 123 are sequentially arranged in the pipeline between the high pressure air bottle 121 and the medicine filling device 124, and after the second electromagnetic valve 122 is opened, the high pressure air in the high pressure air bottle 121 is enabled to flush the pneumatic valve 123 and inject the powder in the medicine filling device 124 into the explosion container 14, so that a mixture of the powder and the air is formed in the explosion container 14.
Since the powder (dust) in the filling device 124 is injected into the explosion container 14 by using the high-pressure air released from the high-pressure air bottle 121, the powder and the air form a uniform mixture, which facilitates the occurrence of an explosion in the explosion container 14.
The pneumatic valve 123 is a one-way valve, and the pneumatic valve 123 is opened only when the air flow from the high pressure air tank 121 to the explosion container 14 flows. The reverse explosive flow in the explosive container 14 does not blow open the pneumatic valve 123.
Preferably, the ignition device 15 of the explosion venting device 100 comprises a time delay switch 151 and an ignition electrode 152 connected with the time delay switch 151, the ignition electrode 152 is inserted into the explosion container 14, the time delay switch 151 is connected with the second electromagnetic valve 122, when the second electromagnetic valve 122 is opened, the time delay switch 151 is opened, and after a preset time delay time, the time delay switch 151 activates the ignition electrode 152, and the ignition electrode 152 detonates the mixture of the powder and the air injected into the explosion container 14.
Preferably, the explosion venting device 100 further includes a control and data acquisition system 13, the control and data acquisition system 13 is respectively connected to the second electromagnetic valve 122 and the time delay switch 151, the control and data acquisition system 13 controls the second electromagnetic valve 122 to open and close, and the control and data acquisition system 13 sets the time delay time of the time delay switch 151.
Preferably, the explosion venting device 100 further comprises a first pressure sensor 17 and at least one second pressure sensor 18, the first pressure sensor 17 and the second pressure sensor 18 are respectively connected to the control and data acquisition system 13, the first pressure sensor 17 is inserted into the explosion container 14 and is used for measuring a pressure value inside the explosion container 14, the second pressure sensor 18 is inserted into the explosion venting portion 16 and is used for measuring a pressure value inside the explosion venting portion 16, and the control and data acquisition system 13 acquires and stores the pressure value acquired by the first pressure sensor 17 and the pressure value acquired by the second pressure sensor 18.
The explosion venting apparatus will be described in detail below in conjunction with its operation.
First, a mass of explosive powder is added by the powder filling device 124 of the powder spraying device 12.
Secondly, a venting membrane 161 is interposed between the explosion chamber and the venting tube 162 of the venting device 16 for isolating the two and preventing outside air from entering the explosion chamber through the venting tube 162.
Then, the vacuum pumping device 11 is turned on, the first electromagnetic valve 112 is used for adjusting the air pumping speed, the pressure gauge 113 is observed, and when the vacuum pressure value is reached, the first electromagnetic valve 112 is closed.
The time delay time of the time delay switch 151 of the ignition device 15 is set by the control and data acquisition system 13, the second electromagnetic valve 122 of the powder spraying device 12 is opened, high-pressure air enters the pipeline from the high-pressure air bottle 121, impacts the pneumatic valve 123 to continue to spread along the pipeline, and then powder in the powder filling device 124 is rapidly and uniformly injected into the cavity of the explosive container.
After a delay time elapses after the second electromagnetic valve 122 is opened, the delay switch 151 is opened to ignite the ignition electrode 152, and the homogeneous mixture of the powder and the air just injected into the explosion chamber 14 is ignited.
The blast of the homogeneous mixture of powder and air in the explosion container 14 will cause the blast to rupture the rupture disk 161 and the blast air flow will then be directed through the rupture tube 162 and through the rupture tube 162 to other zones.
The pressure value of the explosion air flow is collected and stored by the first pressure sensor 17 and the second pressure sensor 18 of the control and data acquisition system 13 during the whole explosion process.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims (10)

1. A noise-abatement explosion venting device, comprising:
an explosive container;
the vacuumizing device is used for vacuumizing the explosion container;
the powder spraying device is used for injecting powder and air into the vacuumized explosion container;
an ignition device that detonates the mixture of powder and air injected into the explosive container by ignition; and
a venting portion that vents an explosion generated within the explosive container.
2. The muffling explosion venting device of claim 1, further comprising a muffling device, wherein the muffling device is connected to the explosion venting portion to muffle the explosion venting portion.
3. A sound-deadening explosion venting device according to claim 1 or 2, wherein the vacuum pumping device comprises a vacuum pump, a first electromagnetic valve and a pressure gauge, the vacuum pump is communicated with the explosion container through the first electromagnetic valve, and the first electromagnetic valve is used for controlling the air pumping speed of the explosion container by the vacuum pump; the pressure gauge is connected in a pipeline between the first electromagnetic valve and the explosion container and used for measuring the gas pressure in the explosion container.
4. A sound-deadening explosion venting device according to claim 1 or 2, wherein the powder spraying device comprises a high-pressure air bottle, a second electromagnetic valve, a pneumatic valve and a powder filling device, the powder filling device is used for placing powder for explosion, a part of the powder filling device is inserted into the explosion container, the high-pressure air bottle is connected with the powder filling device through a pipeline, the second electromagnetic valve and the pneumatic valve are sequentially arranged in the pipeline between the high-pressure air bottle and the powder filling device, and after the second electromagnetic valve is opened, the high-pressure air in the high-pressure air bottle is enabled to flush the pneumatic valve and inject the powder in the powder filling device into the explosion container, so that a mixture of the powder and the air is formed in the explosion container.
5. The muffling explosion venting device of claim 4, wherein the ignition device comprises a time delay switch and an ignition electrode connected to the time delay switch, the ignition electrode is inserted into the explosion container, the time delay switch is connected to the second electromagnetic valve, when the second electromagnetic valve is opened, the time delay switch is opened, and after a preset time delay, the time delay switch activates the ignition electrode, and the ignition electrode detonates the mixture of the powder and the air injected into the explosion container.
6. The muffling explosion venting device according to claim 5, further comprising a control and data acquisition system, wherein the control and data acquisition system is connected to the second electromagnetic valve and the time delay switch, respectively, and the control and data acquisition system sets the time delay time by opening and closing the second electromagnetic valve.
7. The muffling explosion venting device according to claim 6, further comprising a first pressure sensor and at least one second pressure sensor, wherein the first pressure sensor and the second pressure sensor are respectively connected to the control and data acquisition system, the first pressure sensor is inserted into the explosion container for measuring a pressure value inside the explosion container, the second pressure sensor is inserted into the explosion venting portion for measuring a pressure value inside the explosion venting portion, and the control and data acquisition system acquires and stores the pressure value acquired by the first pressure sensor and the pressure value acquired by the second pressure sensor.
8. The muffled explosion venting device of claim 1, wherein the explosion venting portion comprises an explosion venting membrane and an explosion venting tube, the explosion venting membrane being disposed between the explosive container and the explosion venting tube, the explosion venting membrane preventing outside air from entering the explosive container through the explosion venting tube when the evacuation device evacuates the explosive container.
9. The muffling explosion venting device of claim 8, wherein the venting membrane is capable of being breached by an air stream resulting from the explosion of a mixture of powder and air within the explosion container.
10. The muffling explosion venting device according to claim 2, wherein the muffling device comprises a main pipe and an expansion pipe formed on the main pipe, a metal perforated plate is arranged in the expansion pipe, a cavity is formed between the metal perforated plate and the pipe wall of the expansion pipe, and glass fibers are arranged in the cavity.
CN202010342236.9A 2020-04-27 2020-04-27 Silencing explosion venting device Pending CN111520610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010342236.9A CN111520610A (en) 2020-04-27 2020-04-27 Silencing explosion venting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010342236.9A CN111520610A (en) 2020-04-27 2020-04-27 Silencing explosion venting device

Publications (1)

Publication Number Publication Date
CN111520610A true CN111520610A (en) 2020-08-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN111520610A (en)

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