CN111964532A - People's air defense intelligent smoke screen transmitting system - Google Patents
People's air defense intelligent smoke screen transmitting system Download PDFInfo
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- CN111964532A CN111964532A CN202010486908.3A CN202010486908A CN111964532A CN 111964532 A CN111964532 A CN 111964532A CN 202010486908 A CN202010486908 A CN 202010486908A CN 111964532 A CN111964532 A CN 111964532A
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- air defense
- smoke screen
- civil air
- injection
- intelligent smoke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H9/00—Equipment for attack or defence by spreading flame, gas or smoke or leurres; Chemical warfare equipment
- F41H9/06—Apparatus for generating artificial fog or smoke screens
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a civil air defense intelligent smoke screen launching system which is mainly used for emergency protection of important strategic targets, economic targets, civil air defense and other projects, so that smoke screen guarantee is quickly formed around the smoke screen launching system, and attacks of interfering incoming accurate guided weapons on the important strategic targets, the economic targets, the civil air defense and other projects are shielded. The invention comprises a powder storing and conveying device, a feeding fan device, an injection device and an injection angle adjusting system, wherein the particle powder conveys materials to the feeding fan device through the storing and conveying device according to a set rotating speed, and is driven to the injection device along with the airflow of the negative pressure of the feeding fan, and the injection device realizes the intelligent control of the injection port angle through the injection angle adjusting system.
Description
Technical Field
The invention belongs to the field of civil air defense engineering, and particularly relates to a civil air defense intelligent smoke screen launching system.
Background
The intelligent smoke screen releasing system is mainly used for emergency protection of important strategic targets, economic targets, civil air defense projects and the like, so that smoke screen guarantee is quickly formed around the intelligent smoke screen releasing system, attacks of attacking accurately guided weapons on the important strategic targets, the economic targets, the civil air defense projects and the like are shielded and interfered, the viability of the important strategic targets, the economic targets and the civil air defense projects can be effectively improved through the cooperation of active systems, passive systems and the like, and important support is provided for war victory. The intelligent smoke screen discharge system is used as a mode of a camouflage protection system in an important strategic target, an economic target, civil air defense and other engineering comprehensive protection systems, automatic technologies such as flow control, spray direction adjustment and the like are adopted, and powder smoke agents are blown and diffused through wind power to form a smoke screen with strong wind resistance, wide diffusion area and multi-band (visible light and red light) shielding interference, so that camouflage protection is provided for the important strategic and economic targets, and the purpose of protecting the important economic targets from air attack by enemies or reducing loss degree is achieved. The protection has the characteristics of sustainable release, start and stop at any time, repeated use and the like.
The design requirements of the product are fully implemented with the national military standard and the current factory standard, the design quality is ensured, the reliability is improved, and the product design is ensured to be successful at one time. On the premise of meeting the operational performance requirements of the battle, the system adopts mature technology as much as possible, simplifies system composition, and implements the design ideas of generalization, systematization and combination so as to shorten the development period, reduce the cost of the whole life cycle and ensure higher reliability at the same time. On the principle of index priority, the function expansibility of the product is emphasized, and a function interface is reserved for the development of the future smoking material.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides a civil air defense intelligent smoke screen emission system, which aims to continuously and stably emit powder smoke agent with adjustable speed and emission direction to form a smoke screen with strong wind resistance, wide diffusion area and multi-band (visible light and red light) shielding interference,
the intelligent smoke screen emission system comprises a powder storage and conveying device, a feeding fan device, an injection angle adjusting system and a control cabinet, wherein particle powder is conveyed to the feeding fan device through the storage and conveying device according to a set rotating speed, and is driven to the injection device along with the air flow of the feeding fan negative pressure.
The method is characterized in that: powder storage and conveyor including the spiral pay-off structure, adopts direct current motor as drive power source, with the continuous propelling movement of the internal particulate matter of jar.
Furthermore, the feeding fan device comprises a feeding fan and a three-way pipeline which is vertically arranged at a right angle, and an air outlet of the feeding fan is horizontally arranged and is connected with a horizontal port of the three-way pipeline.
Furthermore, the vertical port of the three-way pipeline is connected with a discharge hole of the powder storage and conveying device.
Furthermore, the injection device comprises an axial flow fan and a jet orifice, the interior of the jet orifice is in conical contraction, a feed inlet is arranged on the side edge of the jet orifice, and the feed inlet is connected with a horizontal port of a three-way pipeline of the feeding fan device through a hose.
Furthermore, the injection angle adjusting system comprises a horizontal rotation driving device, a vertical rotation driving device, an injection device rotating support, a wind speed and direction sensing system and a PLC control system.
Furthermore, the spraying device, the horizontal rotation driving device, the vertical rotation driving device and the wind speed and direction sensing system are all arranged on the rotating bracket of the spraying device.
Further, the injection angle adjustment system comprises two control modes, namely manual control and automatic control.
Further, in the automatic control mode of the injection angle adjusting system, the PLC control system is used for acquiring signals of the wind speed and wind direction sensing system and controlling the horizontal rotation driving device and the vertical rotation driving device to rotate by corresponding angles according to a preset program.
Further, the horizontal rotation driving device is adjusted according to the wind direction signal, so that the spraying direction is consistent with the downwind direction.
Further, the vertical rotation driving device is adjusted according to the wind speed signal, and the smaller the wind speed is, the larger the vertical adjustment angle is.
Further, the control cabinet comprises a control panel, and the control panel comprises a start-stop button, an injection device angle display panel, various change-over switches and an indicator lamp.
Further, the change-over switches include a 1SC change-over switch, a 2SC change-over switch and a 3SC change-over switch.
Further, the 1SC change-over switch is switched to different positions and respectively corresponds to different discharging speeds.
Further, the 2SC change-over switch is switched to different positions and respectively corresponds to two control modes of manual control and automatic control of the injection angle adjusting system
Further, the 3SC change-over switch is switched to different positions and respectively corresponds to two material conveying speeds.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
(1) the civil air defense intelligent smoke screen launching system can realize the function of multi-gear feeding speed adjustment.
(2) The civil air defense intelligent smoke screen launching system can automatically adjust the jetting angle according to the ambient wind speed and the wind volume.
(3) The civil air defense intelligent smoke screen launching system has good sealing performance on small-particle materials.
(4) The civil air defense intelligent smoke screen launching system has the characteristics of generalization, systematization and combinatization.
Drawings
Fig. 1 is a front view of a schematic structural diagram of a civil air defense intelligent smoke screen launching system according to an embodiment of the invention;
FIG. 2 is a side view of a schematic structural diagram of a civil air defense intelligent smoke screen launching system according to an embodiment of the invention;
FIG. 3 is a front view of a horizontal driving device of a spray angle adjusting system of a civil air defense intelligent smoke screen launching system according to an embodiment of the invention;
fig. 4 is a schematic diagram of a control cabinet of a civil air defense intelligent smoke screen launching system according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1-2 are schematic structural views of a civil air defense intelligent smoke screen launching system according to an embodiment of the invention. The civil air defense intelligent smoke screen launching system is placed at an upper air inlet at a position where a smoke screen is to be formed to jet along the wind during working.
As shown in fig. 1 and 2, the civil air defense intelligent smoke screen launching system mainly comprises a powder storing and conveying device 1, a feeding fan device 2, an injection device 4, an injection device rotating support 6, a wind speed and direction sensing system 5, a vertical rotation driving device 5 and a horizontal rotation driving device 7.
Preferably, the powder storage and conveying device 1 adopts a military standard barrel, the barrel is screwed with a specially-made discharging cover, and the powder storage and conveying device is manually conveyed into a discharging chute at the upper part of the tank body to be compressed, and a pulling plate is pulled out. The method is simple, convenient, fast and practical, and convenient for field operation at any time. The conveying device adopts a direct current motor as a driving power source to drive the spiral feeding structure, so that the particles in the tank body are continuously pushed.
The feeding fan device 2 utilizes the feeding fan to convey the conveyed particles to the injection device 4 through a three-way pipeline, the injection device 4 is installed on an injection device rotating support 6, the wind speed and wind direction sensing system 5 is arranged above a shell of the powder storage and conveying device 1, collected signals are sent to the PLC control system, then the vertical direction rotating driving device 5 and the horizontal direction rotating driving device 7 are respectively controlled to carry out adjustment of a certain angle in two planes according to the wind speed and the wind direction of the external environment, further automatic adjustment of the angle of the injection port is realized, the angle adjustment mode can be changed into manual adjustment through corresponding switches of the rotating control cabinet, and the manual adjustment mode is manual angle adjustment through a crank of a miniature electric actuator. After the angle of the injection device 4 is adjusted, the injection fan runs to inject the material out, and a mist smoke screen with the length more than or equal to 100 meters and the diameter no less than 30 meters is formed outside.
As shown in fig. 3, the horizontal driving device includes a rotating plate 4, a crank 8, a pin 9, a micro electric actuator 1, a fan support base 10, a ball 5, an intermediate support 2, and a center bearing (an outer ring 3 and an inner ring 7). The casing (stator) of miniature electric actuator 1 is fixed in on middle support 2, middle support 2 links firmly with middle bearing inner circle 7, center bearing inner circle 7 links firmly with complete machine base 6, 8 one ends of cranks are fixed in miniature electric actuator 1's active cell, the round hole installation round pin post 9 of the other end, the round pin post 9 lower extreme inserts the cylindrical downthehole of rotor plate 4 and fan support base 10, middle bearing outer lane 3 is in the same place with rotor plate 4 and fan support base 10 welding, complete machine base 6 is along circumference installation ball 5, the lower surface of rotor plate 4 places on ball 5. The micro electric actuator 1 generates a rotation angle, the rotor rotates to drive the crank 8 to rotate, and then the fan support base 10 is driven to rotate, the horizontal rotation of the injection device is realized, and the balls distributed in the circumferential direction of the whole machine base are beneficial to rotation.
The wind speed and direction sensing system collects wind direction and wind force signals and is used for horizontal angle adjustment and vertical angle adjustment respectively. Preferably, the horizontal angle adjustment range is-30 to +30, and the vertical angle adjustment range is 0 to + 60.
Preferably, the horizontal rotation driving device only considers the wind direction changes within 45 degrees anticlockwise and 45 degrees clockwise, and the axial flow fan changes correspondingly (but cannot break through the original range of-30 degrees to +30 degrees) when the wind direction changes every 5 degrees regardless of the 45 degrees anticlockwise and 45 degrees clockwise, namely, the actual wind direction change angles of the fan are only 10 degrees left and right when the axial flow fan rotates 20 degrees anticlockwise manually; if the axial flow fan is manually rotated by 30 degrees in a counterclockwise way, the actual wind direction-variable angle of the fan is only 0 degree. Otherwise, if the axial flow fan rotates clockwise manually, the actual angle of the fan which can change along with the wind direction can be the same as the angle.
Preferably, only considering that the vertical adjustment of the spraying device is influenced by the wind speed change within the range of 0-11 m/s, 11 sections are arranged within the range of 0-60 degrees in the vertical direction, and the spraying device is changed by 6 degrees when the wind speed is increased or decreased by 1 m/s. The maximum wind speed of 11m/s should be set to 0 deg., except after the vertical position of the axial fan has been set manually. Different from the horizontal direction, if an angle is manually set in the vertical direction, the minimum working angle is only 20 degrees downwards and only 40 degrees upwards as the angle is manually set to be 20 degrees, then the 20 degrees at the moment are new 0 points (the 0 position is realized by the instant electrification of switching from manual operation to automatic switch opening), the wind speed axial flow fan which is reduced by 1m/s is also raised by 6 degrees at the moment, but the maximum value of the upward adjustment is only 40 degrees at the moment, and similarly, the wind speed axial flow fan which is increased by 1m/s is automatically lowered by 6 degrees at the moment, but the maximum value of the downward adjustment is 20 degrees at the limit.
Fig. 4 is a schematic view of a control cabinet which ensures optimized volume by reasonable matching and optimized design, and preferably includes a control panel including start and stop buttons, a jet angle display panel, various change-over switches and indicator lights.
Preferably, the discharging speed is set to be 6 gears, the speed is adjusted by switching the 1SC change-over switch to different positions, meanwhile, two sets of conveying speed parameters of different gears are built in a program according to different specific gravities of the injected materials, and the switching can be carried out by rotating the 3SC change-over switch.
And when the material level in the bin is lowered to a low limit position, the program starts countdown, and the equipment is automatically stopped in a delayed mode. The stop button can be pressed to stop the equipment running at any time during the equipment running. The horizontal/vertical angle of the nozzle of the jet fan can be automatically controlled by a program according to wind direction and wind speed signals, and the angle adjusting mode can be changed into manual adjustment by switching a 2SC change-over switch to different positions.
Claims (13)
1. The utility model provides a people's air defense intelligent smoke screen transmitting system, its includes powder storage and conveyor, pay-off fan device, injection apparatus, injection angle governing system and switch board, its characterized in that:
the storage and conveying device feeds materials according to a set speed, the feeding fan device conveys particle powder to the injection device to be injected to form a smoke screen, the injection angle adjusting system realizes intelligent control of injection port angles through measurement of environmental wind direction and wind speed, and control hardware of the whole system is installed in the control cabinet.
2. The civil air defense intelligent smoke screen launching system as claimed in claim 1, wherein: powder storage and conveyor, but the continuous propelling movement of particulate matter in the jar body with adjustable speed, according to the different proportion that sprays the material, possess two sets of conveying speed parameters that keep off the position differently.
3. The civil air defense intelligent smoke screen launching system as claimed in claim 1, wherein: the feeding fan device comprises a feeding fan and a three-way pipeline (and another anti-return type three-way pipeline) which is arranged in a vertical right angle mode, the air outlet of the feeding fan is horizontally arranged and connected with the horizontal port of the three-way pipeline, and the vertical port of the three-way pipeline is connected with the discharge port of the powder storage and conveying device.
4. The civil air defense intelligent smoke screen launching system as claimed in claim 1, wherein: the injection device comprises an axial flow fan and an injection port, wherein the injection port is in a contraction cone shape, and a feed inlet is formed in the side surface of the injection port.
5. The civil air defense intelligent smoke screen launching system as claimed in claims 3 and 4, wherein the feed inlet is connected with the horizontal port of the three-way pipeline of the feeding fan device through a hose.
6. The civil air defense intelligent smoke screen launching system as claimed in claim 1, wherein: the spraying angle adjusting system comprises a horizontal rotation driving device, a vertical rotation driving device, a spraying device rotating support, a wind speed and direction sensing system and a PLC control system.
7. The civil air defense intelligent smoke screen launching system as claimed in claim 6, wherein: the spraying device and the vertical rotary driving device are both arranged on the spraying device rotary bracket. The horizontal rotation driving device drives the rotating bracket to rotate horizontally.
8. The civil air defense intelligent smoke screen launching system as claimed in claim 6, wherein: and the PLC control system acquires signals of the wind speed and wind direction sensing system and controls the horizontal rotation driving device and the vertical rotation driving device to rotate at corresponding angles according to a preset program.
9. The civil air defense intelligent smoke screen launching system as claimed in claim 6, wherein: the injection angle adjusting system comprises a manual control mode and an automatic control mode.
10. The civil air defense intelligent smoke screen launching system of claim 9, wherein: the automatic control mode of the spray angle adjusting system is used for automatically adjusting the horizontal spray angle and the vertical spray angle according to the wind direction and the wind speed, the horizontal spray angle is equal to the wind direction through automatic adjustment, and the maximum spray distance is realized through automatic adjustment in the horizontal direction.
11. The civil air defense intelligent smoke screen launching system as claimed in claim 1, wherein: the device is characterized in that electrical equipment is integrated in the control cabinet, the control cabinet comprises a control panel, and the control panel comprises a start-stop button, an injection device angle display panel, a change-over switch and an indicator lamp.
12. The civil air defense intelligent smoke screen launching system as claimed in claim 11, wherein: the change-over switch comprises a 1SC change-over switch, a 2SC change-over switch and a 3SC change-over switch. The 1SC change-over switch is switched to different positions and respectively corresponds to different discharging speeds, the 2SC change-over switch is switched to different positions and respectively corresponds to two control modes of manual operation and automatic operation of the injection angle adjusting system, and the 3SC change-over switch is switched to different positions and respectively corresponds to two material conveying speeds.
13. The civil air defense intelligent smoke screen launching system as claimed in claim 11, wherein: when the material level in the bin is lowered to the low limit, the program starts countdown, and the equipment is automatically stopped in a delayed mode. The stop button can be pressed to stop the equipment running at any time during the equipment running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010486908.3A CN111964532A (en) | 2020-06-02 | 2020-06-02 | People's air defense intelligent smoke screen transmitting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010486908.3A CN111964532A (en) | 2020-06-02 | 2020-06-02 | People's air defense intelligent smoke screen transmitting system |
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| CN111964532A true CN111964532A (en) | 2020-11-20 |
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| CN202010486908.3A Pending CN111964532A (en) | 2020-06-02 | 2020-06-02 | People's air defense intelligent smoke screen transmitting system |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659013A (en) * | 1984-11-14 | 1987-04-21 | Board Of Trustees Of Michigan State Univ. | Spray unit for controlled droplet atomization |
| US5233927A (en) * | 1989-05-10 | 1993-08-10 | Raufoss A/S | Arrangement in a smoke camouflage system |
| CN2151373Y (en) * | 1993-03-25 | 1993-12-29 | 福州钜升机械有限公司 | Screw feeding unit of burner |
| US5394139A (en) * | 1992-09-12 | 1995-02-28 | Dards; Paul A. | Smoke screen intruder deterrent system |
| US5937141A (en) * | 1998-02-13 | 1999-08-10 | Swiatosz; Edmund | Smoke generator method and apparatus |
| GB8713360D0 (en) * | 1986-06-18 | 2000-08-23 | Marconi Co Ltd | Missile decoy system |
| CN101091821A (en) * | 2006-06-22 | 2007-12-26 | 西安新竹防灾救生设备有限公司 | Fire fighting tank by using airflow in supersonic velocity |
| CN101520934A (en) * | 2008-02-26 | 2009-09-02 | 马田专业公司 | Intruder deterrent system |
| WO2012028257A1 (en) * | 2010-08-31 | 2012-03-08 | Rheinmetall Waffe Munition Gmbh | Device and method for producing an effective fog wall or fog cloud |
| CN104274988A (en) * | 2013-07-12 | 2015-01-14 | 马田专业公司 | Smoke generator and method of controlling a smoke generation |
| CN104596358A (en) * | 2013-10-31 | 2015-05-06 | 北京航天长征飞行器研究所 | Infrared smoke screen generation device |
| CN107610397A (en) * | 2017-10-10 | 2018-01-19 | 中核第四研究设计工程有限公司 | Intelligent smog occurrence of equipment and its control system |
| CN109764757A (en) * | 2019-02-28 | 2019-05-17 | 贵州黎阳天翔科技有限公司 | It is a kind of using turbojet as the Infrared jamming smoke generator of fuel gas generating system |
| CN110026306A (en) * | 2017-11-21 | 2019-07-19 | 创科（澳门离岸商业服务）有限公司 | Cold spray device |
| CN110108164A (en) * | 2019-04-30 | 2019-08-09 | 重庆军通汽车有限责任公司 | One kind can automatic reverse formula smoking device |
| CN110332856A (en) * | 2019-07-11 | 2019-10-15 | 湖南孝文电子科技有限公司 | A kind of cool flame fire-fighting hair equipment |
-
2020
- 2020-06-02 CN CN202010486908.3A patent/CN111964532A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659013A (en) * | 1984-11-14 | 1987-04-21 | Board Of Trustees Of Michigan State Univ. | Spray unit for controlled droplet atomization |
| GB8713360D0 (en) * | 1986-06-18 | 2000-08-23 | Marconi Co Ltd | Missile decoy system |
| US5233927A (en) * | 1989-05-10 | 1993-08-10 | Raufoss A/S | Arrangement in a smoke camouflage system |
| US5394139A (en) * | 1992-09-12 | 1995-02-28 | Dards; Paul A. | Smoke screen intruder deterrent system |
| CN2151373Y (en) * | 1993-03-25 | 1993-12-29 | 福州钜升机械有限公司 | Screw feeding unit of burner |
| US5937141A (en) * | 1998-02-13 | 1999-08-10 | Swiatosz; Edmund | Smoke generator method and apparatus |
| CN101091821A (en) * | 2006-06-22 | 2007-12-26 | 西安新竹防灾救生设备有限公司 | Fire fighting tank by using airflow in supersonic velocity |
| CN101520934A (en) * | 2008-02-26 | 2009-09-02 | 马田专业公司 | Intruder deterrent system |
| WO2012028257A1 (en) * | 2010-08-31 | 2012-03-08 | Rheinmetall Waffe Munition Gmbh | Device and method for producing an effective fog wall or fog cloud |
| EP2612101A1 (en) * | 2010-08-31 | 2013-07-10 | Rheinmetall Waffe Munition GmbH | Device and method for producing an effective fog wall or fog cloud |
| CN104274988A (en) * | 2013-07-12 | 2015-01-14 | 马田专业公司 | Smoke generator and method of controlling a smoke generation |
| CN104596358A (en) * | 2013-10-31 | 2015-05-06 | 北京航天长征飞行器研究所 | Infrared smoke screen generation device |
| CN107610397A (en) * | 2017-10-10 | 2018-01-19 | 中核第四研究设计工程有限公司 | Intelligent smog occurrence of equipment and its control system |
| CN110026306A (en) * | 2017-11-21 | 2019-07-19 | 创科（澳门离岸商业服务）有限公司 | Cold spray device |
| CN109764757A (en) * | 2019-02-28 | 2019-05-17 | 贵州黎阳天翔科技有限公司 | It is a kind of using turbojet as the Infrared jamming smoke generator of fuel gas generating system |
| CN110108164A (en) * | 2019-04-30 | 2019-08-09 | 重庆军通汽车有限责任公司 | One kind can automatic reverse formula smoking device |
| CN110332856A (en) * | 2019-07-11 | 2019-10-15 | 湖南孝文电子科技有限公司 | A kind of cool flame fire-fighting hair equipment |
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