CN114821944B - Smoke sensor convenient to install and provided with positioning display - Google Patents
Smoke sensor convenient to install and provided with positioning display Download PDFInfo
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- CN114821944B CN114821944B CN202210511351.3A CN202210511351A CN114821944B CN 114821944 B CN114821944 B CN 114821944B CN 202210511351 A CN202210511351 A CN 202210511351A CN 114821944 B CN114821944 B CN 114821944B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
Abstract
The invention discloses a smoke sensor with positioning display, which is convenient to install, one end of the sensor is connected with a water pipe, the smoke sensor with positioning display comprises a fixing device, an adjusting device, a flow guiding device and a detecting device, the water pipe is communicated with the pipeline of the fixing device, the fixing device is connected with the adjusting device, the adjusting device is connected with the flow guiding device, the detecting device is connected with the fixing device, the fixing device comprises a base, a shell, an electromagnet and a positioning magnet, the base is connected with the water pipe, the shell is movably connected with the base, a detecting cavity is arranged on the shell, the detecting device is arranged in the detecting cavity, a plurality of fixing grooves are arranged on the base, the electromagnet is arranged in the fixing grooves, a limiting groove is arranged on the shell, the positioning magnet is arranged in the fixing grooves, the positioning magnet is in sliding connection with the limiting grooves, one side of the positioning magnet, which is far away from the limiting groove, is inserted into the fixing grooves, and the positioning magnet is arranged opposite to the adjacent electromagnet.
Description
Technical Field
The invention relates to the technical field of smoke detection, in particular to a smoke sensor with positioning display, which is convenient to install.
Background
In recent years, with the continuous development of the mechanical manufacturing industry and intelligent equipment, labor resources are greatly liberated, and more enterprises tend to automatically construct the enterprises. The smoke sensor is an important device in the field of automatic detection of smoke, and the safety of enterprise processing and product storage is guaranteed by monitoring smoke in the initial stage of smoldering fire.
Most smoke sensors can only monitor a space in a certain area, so that when a large space is monitored, a plurality of sensors are required to be monitored in a partitioned mode, and when smoke is generated due to local ignition, the plurality of sensors are easy to alarm simultaneously along with gas flowing, and the ignition point cannot be accurately positioned. When the fire is extinguished, only the alarm area of the smoke sensor can be sequentially inspected, so that the fire extinguishing efficiency is greatly influenced, and even the best time for extinguishing the fire can be delayed.
In addition, current smoke sensor detects when detecting, can only detect passively, when monitoring space air flow to the inside of sensor promptly, when monitoring space air flow velocity is slower, causes the detection delay easily, influences initial detection quality.
Disclosure of Invention
The present invention aims to provide a smoke sensor with a positioning display, which is convenient to install, so as to solve the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a smoke sensor convenient to installation has location to show, sensor one end and water piping connection, smoke sensor with location to show includes fixing device, adjusting device, guiding device and detection device, water pipe and fixing device pipeline intercommunication, fixing device and adjusting device connect, adjusting device and guiding device connect, detection device and fixing device connect, fixing device includes the base, a housing, electro-magnet and location magnet, base and water piping connection, housing and base swing joint are equipped with the detection chamber on the housing, detection device arranges in the detection intracavity, be equipped with a plurality of fixed slots on the base, the electro-magnet is arranged in the fixed slot, be equipped with the spacing groove on the housing, location magnet is arranged in the fixed slot, location magnet and spacing groove sliding connection, location magnet keeps away from spacing inslot, location magnet and adjacent electro-magnet are arranged in opposite directions.
The smoke sensor is connected with the water pipe to control the fire-fighting waterway to automatically extinguish fire, the smoke monitoring quality is improved, the angle adjustment is carried out through the adjusting device, thereby the fire-fighting waterway is automatically positioned, medium diversion is carried out through the diversion device, the medium is pressurized, the flowing property of gas to be detected is improved, smoke concentration detection is carried out through the detecting device, the base is clamped on the water pipe, the water pipe is a rigid pipe, fire-fighting water is connected, the shell is initially positioned through the base, the limiting groove is arranged on the shell, the positioning magnet is installed, the positioning magnet can slide along the limiting groove along the horizontal direction, the base is fixed to the electromagnet through the fixing groove, in the initial state, the positioning magnet is inserted in the limiting groove, when the shell is installed, the electromagnet is fixed, the positioning magnet slides along the limiting groove under the magnetic attraction effect, thereby the fixing groove is inserted, the electromagnet is attracted with the electromagnet, when the shell is clamped with the base, current is introduced into the electromagnet, the electromagnet and the same name of magnetic pole is opposite to the positioning magnet, the positioning magnet automatically slides out of the fixing groove under the repulsive force effect, and the shell and the base is separated from the fixing groove, and the installation and the detachment convenience is improved.
Further, be equipped with the gyration groove on the base, casing and gyration groove rotate to be connected, the gyration groove upside is equipped with the mounting groove, adjusting device includes driving motor and commentaries on classics shell, driving motor arranges the mounting groove in, the driving motor output is equipped with the voussoir, be equipped with the wedge groove on the casing, driving motor passes through voussoir and wedge groove transmission to be connected, the casing is equipped with a plurality of guide slots along circumference, it arranges the guide slot in to changeing the shell, guiding device includes miniature air pump, be equipped with the plenum on the casing, miniature air pump arranges the plenum in, miniature air pump output is equipped with a plurality of tuber pipes, be equipped with the conducting channel on the commentaries on classics shell, tuber pipe and conducting channel intercommunication, be equipped with the inlet channel on the commentaries on classics shell, inlet channel is equipped with the inlet flue, inlet channel one end and detection chamber intercommunication are kept away from to the inlet channel, plenum and detection chamber intercommunication, miniature air pump inlet end orientation detection chamber, detection device includes transmitting tube and receiving tube, the side is arranged in the detection chamber side to the receiving tube, the detection chamber upside is arranged in to the receiving tube, transmitting tube and power supply and receiving tube constitute detection circuit, the spacing groove is the cyclic annular.
The base rotates the direction through the gyration groove to the casing, fix driving motor through the mounting groove, driving motor is rotatory power supply, output torque, drive the casing through the voussoir of tip and rotate along the gyration groove, the spacing groove is cyclic annular arrangement, make the casing rotate the in-process, the location magnet both ends card respectively in mounting groove and spacing inslot, the voussoir card is in the wedge inslot of casing upside, improve joint quality, the casing is installed the shell through the guide way, miniature air pump is gaseous supercharged power supply, through gaseous pressure boost, carry out forced circulation ventilation, thereby actively detect the sensor periphery, through setting up a plurality of shells of changeing, carry out the multiple spot and survey cigarette, improve the detection sensitivity, it is rotatory to drive the shell of changeing, improve circumference detection efficiency, install miniature air pump through the plenum, the gas after the tuber pipe of pressure boost is carried out the air supply, and exhaust through the conducting channel, miniature air pump inlet end and detection chamber intercommunication, make the detection intracavity produce the negative pressure, inlet air through the upside, and get into the detection intracavity through inlet, transmitting tube and power intercommunication, after the transmission light, receiving current receiving tube, thereby produce current receiving tube and receiving current, detecting current and detecting current concentration are big, detecting current value and detecting current value are big, smoke concentration is big, and smoke concentration is big, the particle is detected, and the particle concentration is detected, and is relevant.
Further, adjusting device still includes the response subassembly, be equipped with the expansion chamber on the commentaries on classics shell, the response subassembly is arranged in the expansion chamber, the response subassembly includes inflation gasbag, heat exchanger fin and coil, the inflation gasbag is arranged in the expansion chamber, in the expansion gasbag was inserted to heat exchanger fin one end, the heat exchanger fin is kept away from inflation gasbag one end and is inserted in the air inlet channel, inflation gasbag one side is equipped with the drive plate, drive plate is kept away from inflation gasbag one side and is equipped with induction magnet, drive plate and air inlet channel sliding connection, the coil is arranged in the expansion chamber and is kept away from inflation gasbag one end, induction magnet and coil central line collinearly arrange, induction magnet and coil constitute adjusting circuit.
Carry out calorific value detection through sensing assembly to smog, in the object ignition process, produce high temperature smog, carry out supplementary detection through sensing assembly, thereby carry out dual detection to smog, improve detection precision, sensing assembly arranges in the expansion chamber, carry out unilateral spacing to the inflation gasbag through the expansion chamber, carry out heat transfer through the heat exchanger, in the expansion gasbag is inserted to heat exchanger one end, the other end is arranged in the air inlet channel, in the flue gas gets into the air inlet channel, be compressed gas in the inflation gasbag, carry out heat transfer through the heat exchanger, carry out heat transfer to compressed gas, heated expansion gasbag volume inflation, output displacement through the drive plate, drive the induction magnet and remove, induction magnet moves, make the coil do cutting magnetism induction line motion, produce induced current on the coil, through monitoring the induction current size, carry out preliminary detection to the air current, thereby screen dust-laden air current, improve detection precision, through rotating the shell, improve cycle detection performance, induction magnet and coil constitute adjusting circuit, detect the air current calorific value, thereby supplementary detection circuit detects, improve detection precision.
Further, the flow guiding device further comprises a clamping ring and a plurality of hanging pipes, a plurality of flow discharging channels are arranged on the base, the clamping ring is in sliding connection with the flow discharging channels, the water pipes are communicated with the flow discharging channels, the upper ends of the hanging pipes are communicated with the flow discharging channels through the clamping ring, the lower ends of the hanging pipes are intermittently communicated with the flow guiding channels, the middle sections of the hanging pipes are arranged in a disc shape on the upper side of the shell, the electromagnet, the detection circuit and the regulating circuit are sequentially connected in series, and the positioning magnet is in sliding connection with the limiting groove;
the separation is as follows: the opposite surfaces of the positioning magnet and the electromagnet are provided with the same-name magnetic poles, and the positioning magnet is retracted from the fixing groove.
The automatic alarm device is characterized in that the clamping connection is carried out through the flow leakage channel and the clamping ring, the flow leakage channel is communicated with the water pipe, the lifting pipe is communicated with the flow leakage channel through the clamping ring, the clamping ring is driven to rotate along the flow leakage channel through the lifting pipe when the shell rotates, the lower end of the lifting pipe is intermittently communicated with the flow guide channel, the lifting pipe is in disc-shaped winding connection with the upper side of the shell, the electromagnet, the detection circuit and the regulating circuit are connected in series, the alarm circuit is cut off in an initial state, when the heat value detection and the concentration detection of dust-containing air flow exceed standards simultaneously, the alarm circuit is conducted, the smoke sensor close to the ignition point is communicated with the alarm, the smoke sensor far away from the ignition point does not respond, the smoke sensor responding to convert a position signal into an electric signal for transmission, the alarm and the positioning are automatically carried out, larger induction current is generated on the electromagnet, the electromagnet and the same-name magnetic pole of the opposite surface of the positioning magnet are retracted from the fixed groove under the repulsive force effect, the positioning magnet is retracted into the limit groove, the shell is separated from the base under the self-weight effect, the shell drives the rotating shell to move downwards, the lifting pipe in the disc-shaped winding connection process is gradually straightened in the downward moving process, and the smoke sensor is further reduced, and the smoke inlet detection accuracy is further shortened, and the whole detection accuracy is further shortened.
Further, the adjusting device further comprises a reversing plate, the reversing plate is in transmission connection with the transmission plate, the reversing plate is provided with a diversion trench on the rotating shell, the reversing plate is in sliding connection with the diversion trench, the diversion trench is intermittently communicated with the diversion trench, the reversing plate is sequentially provided with a first through hole and a second through hole, and the air pipe and the hanging pipe are alternately communicated with the diversion trench through the reversing plate;
when exhausting, the following steps are carried out: the air pipe is communicated with the flow guide channel through the first through hole, and the second through hole is blocked from the flow guide channel;
when liquid is discharged, the following steps are carried out: the hanging pipe is communicated with the guide channel through the second through hole, and the first through hole is blocked with the guide channel.
The gas path and the waterway are controlled to be on-off through the reversing plate, the first through hole is communicated with the guide channel in an initial state, air compressed by the miniature air pump is conveyed into the guide channel through the air pipe for real-time monitoring, when local temperature rise occurs in the monitoring space, the air flow performance is improved through forced circulation, so that the detection precision is improved, when local ignition occurs in the monitoring space, the periphery is radiated, the flame sectional area is gradually increased from top to bottom, an inclined upward slope is formed, the air pressure is increased through heat radiation, the air moves upwards along the flame interface, the air exhausted through the guide channel faces the high-temperature air flow which is heated and moves, heat transfer is carried out, the air is subjected to reverse acting force, the air is sucked through the air inlet channel, the heat value of the forced circulation air flow is detected, when the local temperature rise is overlarge, the output displacement of the expansion air bag is increased, the movement distance of the transmission plate is driven to be increased, the first through hole and the guide channel are cut off, the second through hole is communicated with the guide channel, and the waterway is communicated, and fire extinguishing is carried out automatically.
Further, the guide channel comprises a speed increasing section, a advection section and a slow flow section, wherein the diameter of the speed increasing section is gradually reduced along the flowing direction of the medium, the diameter of the advection section is unchanged, the diameter of the slow flow section is gradually expanded along the flowing direction of the medium, a negative pressure groove is formed in one side of the advection section, and the negative pressure groove is far away from an opening in one side of the advection section.
Through the gradual reduction of speed-up section diameter setting, make the water velocity of flow increase, the velocity of flow is fastest when reaching the advection section, through the gradual expansion setting of slow flow section diameter, make the velocity of flow reduce, the advection section passes through negative pressure groove atmosphere contact, under the negative pressure effect, make external gas get into in the water, thereby form the gas core in the water of advection section, when the water is spouted from slow flow section, along with the diameter increase, local pressure in the water reduces, the gas core grows rapidly, the expansion, form the bubble, thereby make the water atomizing form the water smoke, make the velocity of flow further reduce, when the water smoke is discharged to flame interface from slow flow section, flame heat radiation drives the gas flow, make the water smoke receive reverse effort, produce the ascending displacement of skew, draw through the inlet channel, the water of atomizing is along with smog gets into the inlet channel together, carry out heat transfer through the heat transfer piece, produce the heat transfer when the gas contact after entering the inlet channel, thereby make the holistic humidity of smog increase, thereby make specific heat and heat transfer coefficient increase, in the rated time, heat through the heat transfer piece increases, thereby make the displacement that the expansion gasbag output, make second through-hole and lifting pipe overlap area increase, thereby improve and carry out local adjustment to the fire extinguishing water path.
As optimization, the outer ring of the first through hole is provided with an air port, the rotary shell is provided with a drainage port, and the first through hole is intermittently communicated with the drainage port through the air port. When the communication between the first through hole and the flow guide channel is interrupted, the air port is used for reversing, and the exhaust port is used for exhausting, so that circulation is performed.
As optimization, one side of the second through hole is provided with a liquid port, the rotating shell is provided with a sub-runner, the second through hole is intermittently communicated with the sub-runner through the liquid port, the shell is circumferentially provided with a plurality of self-cooling grooves, the sub-runner is communicated with the self-cooling grooves, and the self-cooling grooves are arranged in an arc shape. Carry out the water conservancy diversion through the liquid mouth, when putting out a fire, second through-hole and guide runner intercommunication, partial water produces the bleeder stream from the liquid mouth, gets into the subchannel through the liquid mouth to get into from cold inslot through the subchannel, arrange from cold inslot along the casing outside, arrange through the arc and carry out the water conservancy diversion, carry out from the cooling to the casing, prevent that whole temperature from rising, influence detection performance improves scene of a fire detection stability.
As optimization, the lower end of the detection cavity is arranged in an arc shape, an arc quenching channel is arranged between the detection cavity and the pressurizing chamber, and the diameter of the arc quenching channel is gradually reduced. The arc setting of detection chamber lower extreme reduces flame propagation distance through the gradual reduction setting of arc passageway diameter, carries out automatic fire extinguishing, prevents to detect intracavity circuit and fires and cause the spark to reveal, in the monitoring space of external, influences monitoring security performance.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, forced circulation ventilation is carried out through gas pressurization, so that the periphery of the sensor is actively detected, and the detection sensitivity and the circumferential detection efficiency are improved through multi-point smoke detection; when the heat value detection and the concentration detection of the dust-containing air flow exceed the standard at the same time, larger induction current is generated on the electromagnet, and the opposite surfaces of the electromagnet and the positioning magnet are homonymous magnetic poles, so that the shell and the base are separated, the lifting pipe which is in a disc-shaped winding connection gradually straightens in the downward moving process, the overall height of the sensor is reduced, the distance between the air inlet flow channel and the smoke starting point is shortened, further detection is carried out, and the detection precision is improved; when local ignition is performed in the monitoring space, the flame is radiated to the periphery to form an inclined upward slope, the gas moves upwards along the flame interface through heat radiation, the gas exhausted by the flow guide channel flows towards the heated high-temperature airflow to transfer heat and is subjected to reverse acting force so as to move upwards, and then the air is sucked through the air inlet channel so as to detect the heat value of the forced circulation airflow; the advection section is contacted with the atmosphere through the negative pressure groove, and external gas is enabled to enter the water body under the action of negative pressure, so that gas nuclei are formed in the water body of the advection section, and when the water body is sprayed out of the slow flow section, the gas nuclei rapidly grow and expand to form bubbles along with the increase of the diameter and the reduction of the local pressure in the water body, so that the water body is atomized to form water mist; when water mist is discharged from the slow flow section to the flame interface, flame heat radiation drives gas to flow, so that the water mist is subjected to reverse acting force to generate upward displacement, the water mist is drawn through the air inlet flow passage, atomized water enters the air inlet flow passage along with the smoke, heat exchange is generated when the atomized water contacts with heated gas, the whole humidity of the smoke is increased after the atomized water enters the air inlet flow passage, so that the specific heat and the heat transfer coefficient are increased, the heat transmitted by the heat exchange plates is increased in rated time, the displacement output by the expansion air bag is increased, the overlapping area of the second through hole and the hanging pipe is increased, the overcurrent area is increased, and the size of a waterway is locally adjusted, so that the fire extinguishing efficiency is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic general construction of the present invention;
FIG. 2 is a partial cross-sectional view of the fixation device of the present invention;
FIG. 3 is a schematic representation of a power transmission of the present invention;
FIG. 4 is a schematic view of the water diversion of the present invention;
FIG. 5 is an enlarged view of part B of the view of FIG. 4;
FIG. 6 is a schematic diagram of the forced circulation of media of the present invention;
FIG. 7 is an enlarged view of part C of the view of FIG. 6;
FIG. 8 is an enlarged view of part A of the view of FIG. 2;
in the figure: 1-fixing device, 11-base, 111-rotary groove, 112-drainage channel, 113-installation groove, 114-fixing groove, 12-shell, 121-smoke inlet, 122-detection cavity, 123-pressurizing chamber, 124-guiding groove, 125-limit groove, 126-self-cooling groove, 13-electromagnet, 14-positioning magnet, 2-adjusting device, 21-induction component, 211-heat exchanging piece, 212-expansion air bag, 213-driving plate, 214-induction magnet, 215-coil, 22-rotating shell, 221-expansion chamber, 222-guiding channel, 2221-lifting speed section, 2222-advection section, 2223-slow flow section, 223-air inlet channel, 224-drainage channel, 225-intercepting groove, 226-diversion channel, 23-driving motor, 24-reversing plate, 241-first through hole, 242-second through hole, 3-diversion device, 31-miniature air pump, 32-air pipe, 33-clasp, 34-heat exchanging piece, 4-detection device, 41-transmitting pipe, 42-receiving pipe, 5-hanging pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides the technical scheme that:
as shown in figures 1-8, the smoke sensor with positioning display is convenient to install, one end of the sensor is connected with a water pipe 5, the smoke sensor with positioning display comprises a fixing device 1, an adjusting device 2, a flow guiding device 3 and a detecting device 4, the water pipe 5 is communicated with the fixing device 1 through a pipeline, the fixing device 1 is connected with the adjusting device 2, the adjusting device 2 is connected with the flow guiding device 3, the detecting device 4 is connected with the fixing device 1, the fixing device 1 comprises a base 11, a shell 12, an electromagnet 13 and a positioning magnet 14, the base 11 is connected with the water pipe 5, the shell 12 is movably connected with the base 11, a detecting cavity 122 is formed in the shell 12, the detecting device 4 is arranged in the detecting cavity 122, a plurality of fixing grooves 114 are formed in the base 11, the electromagnet 13 is arranged in the fixing grooves 114, a limiting groove 125 is formed in the shell 12, the positioning magnet 14 is arranged in the fixing grooves 114, the positioning magnet 14 is in sliding connection with the limiting grooves 125, one side of the positioning magnet 14 is far away from the limiting grooves 125, and the positioning magnet 14 is arranged in the direction to the adjacent electromagnet 13.
The smoke sensor is connected with the water pipe 5 to control the on-off of a fire-fighting waterway so as to automatically extinguish fire and improve smoke monitoring quality, the adjusting device 2 is used for adjusting the angle, thereby automatically positioning a fire area, the guide device 3 is used for guiding media, pressurizing the media, improving the flowing performance of gas to be detected, the detection device 4 is used for detecting the smoke concentration, the base 11 is clamped on the water pipe 5, the water pipe 5 is a rigid pipe and is connected with fire-fighting water, the base 11 is used for initially positioning the shell 12, the shell 12 is provided with the limiting groove 125, the positioning magnet 14 is installed, the positioning magnet can slide along the limiting groove 125 along the horizontal direction, the base 12 is used for fixing the electromagnet 13 through the fixing groove 114, in an initial state, the positioning magnet is inserted in the limiting groove 125, when the shell 12 is installed, the electromagnet 13 is fixed, the positioning magnet slides along the limiting groove under the action of magnetic attraction, and is then inserted into the fixing groove 114, the electromagnet 13 is sucked, the shell 12 and the base 11 are clamped, when the plug is needed, the current is introduced into the electromagnet 13, the electromagnet 13 and the positioning magnet 14 is the same name, the positioning magnet 14 and the positioning magnet is positioned in the same, and the magnetic pole is separated from the fixing groove 114, and the convenience of the installation is improved.
As shown in fig. 1-4, a rotary groove 111 is arranged on a base 11, a shell 12 is rotationally connected with the rotary groove 111, an installation groove 113 is arranged on the upper side of the rotary groove 111, an adjusting device 2 comprises a driving motor 23 and a rotary shell 22, the driving motor 23 is arranged in the installation groove 113, a wedge block is arranged at the output end of the driving motor 23, a wedge groove is arranged on the shell 12, the driving motor 23 is in transmission connection with the wedge block through the wedge block and the wedge groove, a plurality of guide grooves 124 are circumferentially arranged on the shell 12, the rotary shell 22 is arranged in the guide grooves 124, the flow guiding device 3 comprises a micro air pump 31, a pressurizing chamber 123 is arranged on the shell 12, the micro air pump 31 is arranged in the pressurizing chamber 123, a plurality of air pipes 32 are arranged at the output end of the micro air pump 31, the rotary shell 22 is provided with a flow guide channel 222, the air pipe 32 is communicated with the flow guide channel 222, the rotary shell 22 is provided with an air inlet channel 223, the shell 12 is provided with a smoke inlet 121, the air inlet channel 223 is communicated with the smoke inlet 121 through a pipeline, one end of the smoke inlet 121, which is far away from the air inlet channel 223, is communicated with the detection cavity 122, the pressurizing chamber 123 is communicated with the detection cavity 122, the air inlet end of the miniature air pump 31 faces the detection cavity 122, the detection device 4 comprises a transmitting pipe 41 and a receiving pipe 42, the transmitting pipe 41 is arranged on the side edge of the detection cavity 122, the receiving pipe 42 is arranged on the upper side of the detection cavity 122, the transmitting pipe 41 is electrically connected with a power supply, the transmitting pipe 41, the power supply and the receiving pipe 42 form a detection circuit, and the limiting groove 125 is annularly arranged.
The base 11 rotationally guides the shell 12 through the rotary groove 111, the driving motor 23 is fixed through the mounting groove 113, the driving motor 23 is a rotary power source, torque is output, the shell 12 is driven by wedge blocks at the end to rotate along the rotary groove 111, the limit grooves 125 are annularly arranged, in the process of rotating the shell, the two ends of the positioning magnet 14 are respectively clamped in the mounting groove 113 and the limit grooves 125, the wedge blocks are clamped in wedge grooves at the upper side of the shell 12, the clamping quality is improved, the shell 12 mounts the rotary shell 22 through the guide groove 124, the micro air pump 31 is a gas pressurizing power source, forced circulation ventilation is carried out through gas pressurization, thereby actively detecting the periphery of the sensor, multi-point smoke measurement is carried out through arranging a plurality of rotary shells 22, the detection sensitivity is improved, the shell 12 drives the rotary shell 22 to rotate, the circumferential detection efficiency is improved, the micro air pump 31 is installed through the plenum 123, pressurized air is supplied through the air pipe 32 and exhausted through the guide channel 222, the air inlet end of the micro air pump is communicated with the detection cavity 122, negative pressure is generated in the detection cavity 122, air is supplied through the air inlet channel 223 at the upper side and enters the detection cavity 122 through the smoke inlet 121, the emitting pipe 41 is communicated with the power supply, light is emitted, after being scattered by smoke particles, the light is received by the receiving pipe 42, so that current is generated, the emitting pipe 41 and the receiving pipe 42 form a detection circuit, the current value of the detection circuit is related to the concentration of the smoke particles, and the smoke monitoring efficiency is improved through monitoring the concentration of the smoke particles.
As shown in fig. 2-5, the adjusting device 2 further includes a sensing component 21, an expansion chamber 221 is disposed on the rotating shell 22, the sensing component 21 is disposed in the expansion chamber 221, the sensing component 21 includes an expansion air bag 212, a heat exchange plate 211 and a coil 215, the expansion air bag 212 is disposed in the expansion chamber 221, one end of the heat exchange plate 211 is inserted into the expansion air bag 212, one end of the heat exchange plate 211, which is far away from the expansion air bag 212, is inserted into an air inlet runner 223, a transmission plate 213 is disposed on one side of the expansion air bag 212, a sensing magnet 214 is disposed on one side of the transmission plate 213, which is far away from the expansion air bag 212, the transmission plate 213 is slidably connected with the air inlet runner 223, the coil 215 is disposed in one end, which is far away from the expansion air bag 212, center lines of the sensing magnet 214 and the coil 215 are arranged in a collinear manner, and the sensing magnet 214 and the coil 215 form an adjusting circuit.
The smoke is subjected to heat value detection through the induction component 21, the high-temperature smoke is generated in the object ignition process, auxiliary detection is performed through the induction component 21, thereby double detection is performed on the smoke, detection precision is improved, the induction component 21 is arranged in the expansion chamber 221, the expansion air bag 212 is subjected to unilateral limiting through the expansion chamber 221, heat exchange is performed through the heat exchange plate 211, one end of the heat exchange plate 211 is inserted into the expansion air bag 212, the other end of the heat exchange plate is arranged in the air inlet flow passage 223, smoke enters the air inlet flow passage 223, compressed gas is in the expansion air bag 212, heat exchange is performed through the heat exchange plate 211, the compressed gas is subjected to heat exchange, the heated expansion air bag 212 is subjected to volume expansion, displacement is output through the transmission plate 213, the induction magnet 214 is driven to move, the induction magnet 214 and the coil 215 are arranged in a collinear manner, the induction magnet moves, the coil 215 is subjected to cutting magnetic induction line movement, induction current is generated on the coil, primary detection is performed on the air flow through monitoring, dust-containing air flow is screened, detection precision is improved, circulation detection performance is improved through rotating the rotating shell 22, the induction magnet 214 and the coil 215 forms an adjusting circuit, the detection circuit, the air flow is subjected to detection, and the auxiliary detection circuit is subjected to detection, and the heat value detection precision is improved.
As shown in fig. 3-7, the flow guiding device 3 further comprises a clamping ring 33 and a plurality of hanging pipes 34, a plurality of flow discharging channels 112 are arranged on the base 11, the clamping ring 33 is in sliding connection with the flow discharging channels 112, the water pipe 5 is communicated with the flow discharging channels 112, the upper ends of the hanging pipes 34 are communicated with the flow discharging channels 112 through the clamping ring 33, the lower ends of the hanging pipes 34 are intermittently communicated with the flow guiding channels 222, the middle sections of the hanging pipes 34 are arranged in a disc shape on the upper side of the shell 12, the electromagnet 13, the detection circuit and the regulating circuit are sequentially connected in series, and the positioning magnet 14 is in sliding connection with the limiting groove 125;
the separation is as follows: the positioning magnet 14 and the electromagnet 13 have the same magnetic poles in opposite directions, and the positioning magnet 14 is retracted from the fixing groove 114.
Through the clamping connection between the drainage channel 112 and the clamping ring 33, the drainage channel 112 is communicated with the water pipe 5, the hanging pipe 34 is communicated with the drainage channel 112 through the clamping ring 33, when the shell 12 rotates, the clamping ring 33 is driven to rotate along the drainage channel 112 through the hanging pipe 34, the lower end of the hanging pipe 34 is intermittently communicated with the guide channel 222, the hanging pipe 34 is in a disc-shaped winding connection on the upper side of the shell 12, the electromagnet 13, the detection circuit and the regulating circuit are connected in series, when the heat value detection and the concentration detection of dust-containing air flow exceed the standard simultaneously, larger induction current is generated on the electromagnet 13, the electromagnet 13 and the positioning magnet 14 are provided with the same-name magnetic poles on the opposite surfaces, the positioning magnet 14 is withdrawn from the fixed groove 114 under the repulsive force effect, and retracted into the limiting groove 125, so that the shell 12 is separated from the base 11, the shell 12 drives the rotating shell 22 to move downwards under the self weight effect, the hanging pipe 34 in the disc-shaped winding connection is gradually straightened in the downward moving process, so that the overall height of the sensor is reduced, the distance between the air inlet channel 223 and the smoke starting point is shortened, further detection is carried out, and the detection precision is improved.
As shown in fig. 4-5 and 6, the adjusting device 2 further comprises a reversing plate 24, the reversing plate 24 is in transmission connection with the transmission plate 213, a diversion trench 225 is arranged on the rotating shell 22, the reversing plate 24 is in sliding connection with the diversion trench 225, the diversion trench 225 is intermittently communicated with the diversion trench 222, the reversing plate 24 is sequentially provided with a first through hole 241 and a second through hole 242, and the air pipe 32 and the hanging pipe 34 are alternately communicated with the diversion trench 222 through the reversing plate 24;
when exhausting, the following steps are carried out: the air pipe 32 is communicated with the flow guide channel 222 through the first through hole 241, and the second through hole 242 is blocked from the flow guide channel 222;
when liquid is discharged, the following steps are carried out: the hanger tube 34 communicates with the guide passage 222 through the second through hole 242, and the first through hole 241 is blocked from the guide passage 222.
The on-off of the gas path and the water path is controlled by the reversing plate 24, the first through hole 241 is communicated with the flow guide channel 222 in an initial state, air compressed by the micro air pump 31 is conveyed into the flow guide channel 222 through the air pipe 32 for real-time monitoring, when the local temperature rise occurs in the monitoring space, the air flow performance is improved through forced circulation, so that the detection precision is improved, when the local ignition occurs in the monitoring space, the air is radiated to the periphery, the flame sectional area is gradually increased from top to bottom, an inclined upward slope is formed, the air pressure is increased through heat radiation, the air is moved upwards along the flame interface, the air exhausted through the flow guide channel 222 conducts heat transfer towards the high-temperature air flow which is heated and is subjected to reverse acting force, the air is sucked through the air inlet channel 223, the heat value detection is conducted on the forced circulation air flow, when the local temperature rise is overlarge, the output displacement of the expansion air bag 212 is increased, the movement distance of the transmission plate 213 is driven to be increased, the first through hole 241 and the flow guide channel 222 is cut off, the second through hole 242 is communicated with the flow guide channel 222, so that the water path is communicated, and the fire is automatically extinguished.
As shown in fig. 3-5, the flow guide 222 includes a rising section 2221, a advection section 2222 and a slow flow section 2223, the diameter of the rising section 2221 is gradually reduced along the flow direction of the medium, the diameter of the advection section 2222 is unchanged, the diameter of the slow flow section 2223 is gradually expanded along the flow direction of the medium, a negative pressure groove is arranged on one side of the advection section 2222, and the negative pressure groove is arranged far away from the opening on one side of the advection section.
Through the gradual reduction setting of the diameter of the up-flow section 2221, the velocity of water flow increases, the velocity of flow is fastest when reaching the advection section 2222, the diameter of the slow flow section 2223 gradually expands and sets up, the velocity of flow decreases, the advection section 2222 passes through negative pressure groove atmosphere contact, under the negative pressure effect, make external gas get into the water, thereby form the gas core in the water of advection section 2222, when the water is from the slow flow section 2223 blowout, as the diameter increases, local pressure in the water decreases, the gas core grows rapidly, expand, form the bubble, thereby make the water atomize and form the water smoke, make the velocity of flow further reduce, when the water smoke is discharged to the flame interface from slow flow section 2223, flame heat radiation drives gas flow, make the water smoke receive reverse effort, produce the displacement that inclines upwards, draw through the air inlet flow channel 223, the atomized water passes through heat exchange piece 211 and produces heat exchange when smog gets into the air inlet flow channel 223 together, make holistic humidity increase of smog after entering air inlet flow channel 223, thereby make whole humidity increase, make coefficient increase with the heat transfer coefficient, in time, increase through heat transfer piece 211 transmission heat, thereby make expansion output 212 and output and flow rate increase, thereby, the water channel 34 is small is adjusted, and the water path is large, and the rated area is adjusted.
Preferably, the outer ring of the first through hole 241 is provided with an air port, the rotary shell 22 is provided with a drainage port 224, and the first through hole 241 is intermittently communicated with the drainage port 224 through the air port. When the communication between the first through hole 241 and the flow guide 222 is interrupted, the flow is reversed through the gas port and exhausted through the exhaust port 224, thereby circulating.
As an optimization, a liquid port is arranged on one side of the second through hole 242, a sub-channel 226 is arranged on the rotating shell 22, the second through hole 242 is intermittently communicated with the sub-channel 226 through the liquid port, a plurality of self-cooling grooves 126 are circumferentially arranged on the shell 12, the sub-channel 226 is communicated with the self-cooling grooves 126, and the self-cooling grooves 126 are arranged in an arc shape. The water body is guided through the liquid port, when putting out a fire, the second through hole 242 and the diversion channel 222 are communicated, partial water body generates a leakage flow from the liquid port, enters the diversion channel 226 through the liquid port, and enters the self-cooling groove 126 through the diversion channel 226, the self-cooling groove 126 is arranged along the outer side of the shell 12, the diversion is carried out through arc arrangement, the shell 12 is self-cooled, the whole temperature is prevented from rising, the detection performance is influenced, and the fire scene detection stability is improved.
As an optimization, the lower end of the detection cavity 122 is arc-shaped, an arc-extinguishing channel is arranged between the detection cavity 122 and the pressurizing chamber 123, and the diameter of the arc-extinguishing channel is gradually reduced. The arc setting of detection chamber 122 lower extreme reduces flame propagation distance through the gradual reduction of arc passageway diameter setting, carries out automatic fire extinguishing, prevents to detect the internal circuit of chamber 122 and fires and cause the spark to reveal, in the monitoring space of external world, influences monitoring security performance.
The working principle of the invention is as follows: the forced circulation ventilation is carried out through the pressurization of the gas, so that the periphery of the sensor is actively detected, the multi-point smoke measurement is carried out through the arrangement of the plurality of rotating shells 22, the detection sensitivity is improved, and the rotating shells 22 are driven to rotate through the shell 12, so that the circumferential detection efficiency is improved; when the heat value detection and the concentration detection of the dust-containing air flow exceed the standard at the same time, larger induction current is generated on the electromagnet 13, the opposite surfaces of the electromagnet 13 and the positioning magnet 14 are provided with the same-name magnetic poles, the positioning magnet 14 is withdrawn from the fixed groove 114 and retracted into the limit groove 125 under the repulsive force action, so that the shell 12 and the base 11 are separated, the lifting pipe 34 which is in a disc-shaped winding connection is gradually straightened in the downward moving process, the overall height of the sensor is reduced, the distance between the air inlet flow passage 223 and the smoke starting point is shortened, further detection is carried out, and the detection precision is improved; when local ignition is performed in the monitoring space, the flame cross section area is gradually increased from top to bottom to form an inclined upward slope, the gas pressure is increased by heat radiation to move upwards along the flame interface, the gas exhausted through the flow guide channel 222 flows towards the heated high-temperature gas flow to transfer heat and is subjected to reverse acting force to move upwards, and then the gas is sucked through the gas inlet channel 223 to detect the heat value of the forced circulation gas flow; the advection section 2222 is in air contact through the negative pressure groove, and external gas enters the water body under the action of negative pressure, so that gas nuclei are formed in the water body of the advection section 2222, and when the water body is ejected from the slow flow section 2223, the gas nuclei rapidly grow and expand to form bubbles along with the increase of the diameter of the water body, so that the water body is atomized to form water mist; when the water mist is discharged from the slow flow section 2223 to the flame interface, the flame heat radiation drives gas to flow, so that the water mist is subjected to reverse acting force to generate upward displacement, the water mist is drawn through the air inlet flow passage 223, atomized water enters the air inlet flow passage 223 along with the smoke, heat exchange is generated when the atomized water contacts with heated gas, the whole humidity of the smoke is increased after the atomized water enters the air inlet flow passage 223, so that the specific heat and the heat transfer coefficient are increased, the heat transmitted by the heat exchange plate 211 is increased in rated time, the displacement output by the expansion air bag 212 is increased, the overlapping area of the second through hole 242 and the hanging pipe 34 is increased, the overcurrent area is increased, the size of a waterway is locally adjusted, and the fire extinguishing efficiency is improved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a smoke transducer that has location demonstration is convenient for install, smoke transducer one end and water pipe (5) that has location demonstration are connected, its characterized in that to be convenient for install: the smoke sensor with the positioning display is convenient to install and comprises a fixing device (1), an adjusting device (2), a flow guiding device (3) and a detecting device (4), a water pipe (5) is communicated with a pipeline of the fixing device (1), the fixing device (1) is connected with the adjusting device (2), the adjusting device (2) is connected with the flow guiding device (3), the detecting device (4) is connected with the fixing device (1), the fixing device (1) comprises a base (11), a shell (12), an electromagnet (13) and a positioning magnet (14), the base (11) is connected with the water pipe (5), the shell (12) is movably connected with the base (11), a detecting cavity (122) is arranged on the shell (12), the detecting device (4) is arranged in the detecting cavity (122), a plurality of fixing grooves (114) are formed in the base (11), the electromagnet (13) is arranged in the fixing grooves (114), a limiting groove (125) is formed in the shell (12), the positioning magnet (14) is arranged in the fixing groove (114), the fixing groove (114) and the positioning magnet (14) is connected with the limiting magnet (125) in a sliding mode, one side of the positioning magnet (125) is far away from the fixing groove (125), the positioning magnet (14) and the adjacent electromagnet (13) are arranged in opposite directions;
the base (11) is provided with a rotary groove (111), the shell (12) is rotationally connected with the rotary groove (111), the upper side of the rotary groove (111) is provided with a mounting groove (113), the regulating device (2) comprises a driving motor (23) and a rotary shell (22), the driving motor (23) is arranged in the mounting groove (113), the output end of the driving motor (23) is provided with a wedge block, the shell (12) is provided with a wedge groove, the driving motor (23) is in transmission connection with the wedge block through the wedge block and the wedge groove, the shell (12) is provided with a plurality of guide grooves (124) along the circumferential direction, the rotary shell (22) is arranged in the guide groove (124), the guide device (3) comprises a miniature air pump (31), the shell (12) is provided with a pressurizing chamber (123), the miniature air pump (31) is arranged in the pressurizing chamber (123), the output end of the miniature air pump (31) is provided with a plurality of air pipes (32), the rotary shell (22) is provided with a guide channel (222), the air pipes (32) are communicated with the guide channel (222), the rotary shell (22) is provided with an air inlet (121) and the air inlet (121) is communicated with the air inlet (121), the utility model provides a cigarette mouth (121) is kept away from air inlet channel (223) one end and detection chamber (122) intercommunication, boost room (123) and detection chamber (122) intercommunication, miniature air pump (31) inlet end orientation detection chamber (122), detection device (4) are including transmitting tube (41) and receiver tube (42), detection chamber (122) side is arranged in transmitting tube (41), detection chamber (122) upside is arranged in to receiver tube (42), transmitting tube (41) and power electricity link, transmitting tube (41), power and receiver tube (42) constitute detection circuit, spacing groove (125) are cyclic annular and arrange.
2. A smoke sensor with a positional display for facilitating installation as defined in claim 1, wherein: the adjusting device (2) further comprises an induction component (21), an expansion chamber (221) is arranged on the rotating shell (22), the induction component (21) is arranged in the expansion chamber (221), the induction component (21) comprises an expansion air bag (212), a heat exchange plate (211) and a coil (215), the expansion air bag (212) is arranged in the expansion chamber (221), one end of the heat exchange plate (211) is inserted into the expansion air bag (212), one end of the heat exchange plate (211) is far away from the expansion air bag (212) and is inserted into an air inlet runner (223), a transmission plate (213) is arranged on one side of the expansion air bag (212), one side of the transmission plate (213) is far away from the expansion air bag (212) and is in sliding connection with the air inlet runner (223), the coil (215) is arranged in the expansion chamber (221) and is far away from one end of the expansion air bag (212), and the central lines of the induction magnet (214) and the coil (215) are arranged in a collinear mode, and the induction magnet (214) and the coil (215) form an adjusting circuit.
3. A smoke sensor with a positional display for facilitating installation as defined in claim 2, wherein: the flow guiding device (3) further comprises a clamping ring (33) and a plurality of hanging pipes (34), the base (11) is provided with a plurality of flow discharging channels (112), the clamping ring (33) is in sliding connection with the flow discharging channels (112), the water pipes (5) are communicated with the flow discharging channels (112), the upper ends of the hanging pipes (34) are communicated with the flow discharging channels (112) through the clamping ring (33), the lower ends of the hanging pipes (34) are intermittently communicated with the flow guiding channels (222), the middle sections of the hanging pipes (34) are arranged on the upper side of the shell (12) in a disc shape, the electromagnets (13), the detection circuit and the regulating circuit are sequentially connected in series, and the positioning magnets (14) are in sliding connection with the limiting grooves (125);
the separation is as follows: the positioning magnet (14) and the electromagnet (13) are opposite to each other and present the same-name magnetic poles, and the positioning magnet (14) is retracted from the fixing groove (114).
4. A smoke sensor with a positional display for facilitating installation as claimed in claim 3, wherein: the adjusting device (2) further comprises a reversing plate (24), the reversing plate (24) is in transmission connection with the transmission plate (213), the rotary shell (22) is provided with a diversion trench (225), the reversing plate (24) is in sliding connection with the diversion trench (225), the diversion trench (225) is intermittently communicated with the diversion trench (222), the reversing plate (24) is sequentially provided with a first through hole (241) and a second through hole (242), and the air pipe (32) and the hanging pipe (34) are alternately communicated with the diversion trench (222) through the reversing plate (24);
when exhausting, the following steps are carried out: the air pipe (32) is communicated with the guide channel (222) through a first through hole (241), and the second through hole (242) is blocked from the guide channel (222);
when liquid is discharged, the following steps are carried out: the hanging pipe (34) is communicated with the guide channel (222) through a second through hole (242), and the first through hole (241) and the guide channel (222) are blocked.
5. A smoke sensor with a positional display for facilitating installation as defined in claim 4, wherein: the flow guide channel (222) comprises a speed increasing section (2221), a advection section (2222) and a slow flow section (2223), wherein the diameter of the speed increasing section (2221) is gradually reduced along the flow direction of a medium, the diameter of the advection section (2222) is unchanged, the diameter of the slow flow section (2223) is gradually expanded along the flow direction of the medium, a negative pressure groove is formed in one side of the advection section (2222), and the negative pressure groove is far away from an opening on one side of the advection section.
6. A smoke sensor with a positional display for facilitating installation as defined in claim 5, wherein: the outer ring of the first through hole (241) is provided with an air port, the rotating shell (22) is provided with a drainage port (224), and the first through hole (241) is intermittently communicated with the drainage port (224) through the air port.
7. A smoke sensor with a positional display for facilitating installation as defined in claim 6, wherein: the utility model discloses a shell, including shell (12), second through-hole (242), runner (22) are equipped with liquid mouth, be equipped with branch runner (226) on changeing shell (22), second through-hole (242) are through liquid mouth and branch runner (226) intermittent type intercommunication, casing (12) are equipped with a plurality of from cooling tank (126) along circumference, branch runner (226) and from cooling tank (126) intercommunication, from cooling tank (126) arc setting.
8. A smoke sensor with a positional display for facilitating installation as defined in claim 7, wherein: the arc-shaped detection cavity (122) is arranged at the lower end of the detection cavity, an arc-extinguishing channel is arranged between the detection cavity (122) and the pressurizing chamber (123), and the diameter of the arc-extinguishing channel is gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210511351.3A CN114821944B (en) | 2022-05-12 | 2022-05-12 | Smoke sensor convenient to install and provided with positioning display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210511351.3A CN114821944B (en) | 2022-05-12 | 2022-05-12 | Smoke sensor convenient to install and provided with positioning display |
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| CN114821944A CN114821944A (en) | 2022-07-29 |
| CN114821944B true CN114821944B (en) | 2023-09-19 |
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| CN113299028A (en) * | 2021-07-27 | 2021-08-24 | 江苏河马自动化设备有限公司 | Automatic alarm device with fire smoke detection function |
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| EP2937843A1 (en) * | 2014-04-24 | 2015-10-28 | Pradeep Ramdeo | Smoke multi-gas detector alarm and transmitter device |
| WO2018227897A1 (en) * | 2017-06-14 | 2018-12-20 | 苏州珀斯方得电子有限公司 | Miniature smoke alarm |
| CN207822339U (en) * | 2017-12-14 | 2018-09-07 | 山东科技大学 | A kind of intelligent scalable fire extinguisher of all direction multifunctional |
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| CN114821944A (en) | 2022-07-29 |
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