CN107817826B - Control device based on sensitive trigger silicon controlled rectifier - Google Patents

Control device based on sensitive trigger silicon controlled rectifier Download PDF

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Publication number
CN107817826B
CN107817826B CN201711167964.5A CN201711167964A CN107817826B CN 107817826 B CN107817826 B CN 107817826B CN 201711167964 A CN201711167964 A CN 201711167964A CN 107817826 B CN107817826 B CN 107817826B
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type
flue pipe
venturi
silicon controlled
base region
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CN107817826A (en
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魏广乾
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Chongqing Kxshy Electronic Technology Co ltd
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Chongqing Kxshy Electronic Technology Co ltd
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Prevention Of Fouling (AREA)
  • Ventilation (AREA)

Abstract

This scheme discloses a controlling means based on sensitive trigger silicon controlled rectifier, including flue pipe and the motor of setting outside the flue pipe, the flue intraductal pivot that is equipped with, pivot one end is fixed on the motor, be fixed with the flabellum on the pivot other end, the blade surface of flabellum is towards the flue pipe mouth of pipe, the flue pipe mouth of pipe is equipped with the solenoid valve, still include silicon controlled rectifier switch and two hoses, the solenoid valve is connected to silicon controlled rectifier switch electricity, flue pipe both sides are equipped with the through-hole respectively, two through-holes are located flue pipe upper portion, it is equipped with venturi respectively to be located flue pipe both sides, venturi is equipped with the raceway, the venturi below is equipped with the water tank, water tank intercommunication raceway, venturi one end intercommunication. In the scheme, the venturi tube integrates water, dust and wind into a whole to form water mist, and the water mist is sprayed into a plant, so that the dust in the plant is reduced, and the humidity in the plant can be increased.

Description

Control device based on sensitive trigger silicon controlled rectifier
Technical Field
The invention belongs to the technical field of controllable silicon, and particularly relates to a control device based on sensitive trigger controllable silicon.
Background
With the development of high and new technologies such as electronics, the concentration of pollutants in the environment may cause electrical drift or instability of the product. The concentration of gas-phase pollutants in a factory building for manufacturing electronic products must be less than 1ppt, therefore, in order to filter and remove dust, the existing method is to arrange a chemical filter at the air inlet of a fan on the ceiling of the factory building to reduce the dust, and for the conventional chemical filter at present, the effect of adsorbing organic pollutants is better in an initial state, clean air with lower pollutant concentration can be obtained, but the impurity removal effect is worse and worse along with the prolonging of the service time, and the pollutant concentration in the obtained clean air is higher and higher.
On the other hand, chemical filter can only be single gas in the filtration factory building, and can not increase the humidity in the factory building, functional ratio is more single, and there is chemical agent on chemical filter, in its chemical agent also can waft into the factory building, can cause the influence to the staff in the factory building, moreover, it all need not discharge the dust every day in the factory building, when not discharging, its factory building income wind gap also can not be closed, consequently, need one kind can control humidity in the factory building and control discharge the dust based on the controlling means of sensitive trigger silicon controlled rectifier.
Disclosure of Invention
The invention aims to provide a control device based on a sensitive trigger controlled silicon, which can control the humidity in a plant and the dust emission.
In order to solve the technical problem, the control device based on the sensitive trigger controlled silicon in the scheme comprises a flue pipe and a motor arranged outside the flue pipe, a rotating shaft is arranged in the flue pipe, one end of the rotating shaft is fixed on the motor, the other end of the rotating shaft is fixed with a fan blade, the leaf surface of the fan blade faces the pipe orifice of the flue pipe, the pipe orifice of the flue pipe is provided with an electromagnetic valve, and the flue pipe also comprises a silicon controlled switch and two hoses, the silicon controlled switch is electrically connected with the electromagnetic valve, through holes are respectively arranged at two sides of the flue pipe, the two through holes are positioned at the upper part of the flue pipe, Venturi tubes are respectively arranged at two sides of the flue pipe, a water delivery pipe is arranged at the throat part of the Venturi tube, a water tank is arranged below the Venturi tube and is communicated with the water delivery pipe, venturi one end intercommunication the through-hole, the venturi other end intercommunication the hose.
The principle of the scheme is as follows:
the water tank filled with water is prepared in advance, the water delivery pipe is inserted into the water tank, the flue pipe is arranged at the air inlet of the ceiling of the factory building, and the outlet of the hose extends into the factory building.
When dust in a factory building needs to be discharged, a silicon controlled switch is started, the silicon controlled switch starts an electromagnetic valve, the electromagnetic valve is opened, the dust in the factory building flows to a flue pipe, at the moment, a motor is started, the motor rotates to drive a rotating shaft to rotate, the rotating shaft rotates to drive a fan blade to rotate, and the blade surface of the fan blade faces the flue pipe opening, so that wind power generated on the front side of the fan blade blows to the flue pipe opening, the back side of the fan blade generates suction, the dust in the factory building is sucked into the flue pipe by airflow generated by the wind, and the airflow is mainly discharged through the flue pipe due to the large caliber of the flue pipe, namely the dust in the factory building is discharged out of the flue; close silicon controlled switch, close the solenoid valve promptly, the motor continues to work, it continues to produce wind-force to drive the flabellum, because the solenoid valve is closed, therefore, the air current that wind-force produced can't be discharged through the flue pipe, at this moment, the air current can flow to venturi through the through-hole, when through venturi throat, its velocity of flow can accelerate, this department pressure diminishes, make water in the water tank inhale venturi throat department along the raceway, mix with venturi throat wind and form water smoke, and in getting into the hose, in getting into the factory building along the hose, therefore, spout water smoke in to the factory building.
The beneficial effect of this scheme lies in:
(1) compared with the prior art, the controlling means who sets up in this scheme can open the solenoid valve according to the demand, simultaneously, opens the income wind gap on the ceiling for dust in the factory building reduces the dust to the factory building along with the air current outside through the flue pipe discharge factory building, owing to the silicon controlled switch who sets up, can quick switching, and it is fast to be fit for the reactive power change, makes the opening that the solenoid valve can be quick.
(2) Compared with the prior art, in the scheme, water, dust and wind are integrated through the Venturi tube to form water mist, and the water mist is sprayed into a plant, so that the dust in the plant is reduced, and the humidity in the plant can be increased.
Further, the silicon controlled switch includes the silicon controlled rectifier, be equipped with P type anode region on the silicon controlled rectifier, P type anode region upper surface is equipped with the long base region of N type, P type anode region lower surface is equipped with anode electrode A, be equipped with the short base region of P type on the long base region of N type, one side is equipped with the short base region of N on the short base region of P typeTen pieces of clothThe type emitter region, the opposite side is equipped with gate electrode G on the short base region of P type, be equipped with cathode electrode K on the N + type emitter region, the long base region of N type with be equipped with interior slot between the short base region of P type, interior slot surrounds the short base region of P type, gate electrode G and cathode electrode K, gate electrode G with be equipped with resistance between the cathode electrode K. Through test comparison, the temperature characteristic is obviously improved, the distribution of the trigger current is concentrated, and the dispersion coefficient is small.
Further, the resistance value of the resistor is 1 kilo-ohm. The high-speed ignition energy is greatly improved, and the switching speed is greatly improved.
Further, a water inlet is arranged in the water tank, and a wooden plug is arranged in the water inlet. After the water in the water tank is used up, water can be poured into the water tank through the water inlet, and the water inlet is sealed by using the wooden plug, so that the water in the water tank is prevented from flowing out.
Furthermore, the bottom of the water tank is provided with a support frame, and one end of the support frame is fixed on the outer pipe wall of the flue pipe. The support frame is used for supporting the water tank and preventing the water tank from falling off the ceiling.
Furthermore, the hose is made of natural latex. The natural latex has the advantages of mite prevention and antibiosis, moisture absorption and ventilation, high support, namely rebound, super silence, static resistance, no deformation and long service life.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a control device based on a sensitive trigger thyristor according to the present invention;
FIG. 2 is a cross-sectional view of the thyristor of the present invention;
fig. 3 is a longitudinal structural view of the thyristor of fig. 2.
Detailed Description
The present invention will be described in further detail below by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a flue pipe 1, fan blades 2, an electromagnetic valve 3, a silicon controlled rectifier 4, a cathode electrode K41, a gate electrode G42, a through hole 5, a Venturi tube 6, a hose 7, a water pipe 8, a water tank 9, a wood plug 10, a rotating shaft 11, a resistor 13, a P-type short base region 14, an N + type emitting region 15, a glass passivation 16, a P-type anode region 17, an N-type long base region 18 and an anode electrode A19.
As shown in FIG. 1, the control device based on sensitive trigger SCR in this embodiment comprises a flue pipe 1, a rotating shaft 11 is disposed in the flue pipe 1, one end of the rotating shaft 11 is fixedly connected to an output shaft of a motor, a fan blade 2 is fixed to the other end of the rotating shaft 11, when the motor is started, the motor drives the rotating shaft 11 to rotate, the fan blade 2 on the rotating shaft 11 rotates to generate wind power, dust in a factory building is sucked into the flue pipe 1 and discharged outside along the flue pipe 1, a solenoid valve 3 is disposed on the top of the flue pipe 1, the solenoid valve 3 is used for covering an air outlet of the flue pipe 1, a SCR switch is disposed on one side of the flue pipe 1, the SCR switch is electrically connected with the solenoid valve 3, through holes 5 are respectively disposed on both sides of the upper portion of the flue pipe 1, the through holes 5 are communicated with Venturi tubes 6, and two Venturi tubes 6 are respectively disposed on the outer sides of the pipe, 8 one end of raceway communicates venturi 6's throat, 8 other ends of raceway communicate water tank 9, water tank 9 is located venturi 6's below, be equipped with the water inlet on the water tank 9, be equipped with wooden plug 10 in this water inlet, it is in order to use wooden plug 10 to seal water tank 9 after filling water in water tank 9, prevent that the water in the water tank 9 from omitting out, water tank 9 bottom is equipped with the support frame, support frame one end is fixed on 1 outer pipe wall of flue pipe.
6 one end intercommunication through-hole 5 of venturi, 6 other ends of venturi intercommunication hose 7, hose 7 cup joints at the 6 other ends of venturi, and 7 one ends of hose are inserted in the factory building, and hose 7 adopts the latex material.
As shown in fig. 2 and 3, the thyristor switch includes a thyristor 4, the thyristor 4 includes a P-type anode region 17, an N-type long base region 18 is formed on the P-type anode region 17, an anode electrode a19 is disposed under the P-type anode region 17, a P-type short base region 14 is formed on the N-type long base region 18, an N + -type emitter region 15 is partially formed on the P-type short base region 14 and a gate electrode G42 is partially disposed, a cathode electrode K41 is disposed on the N + -type emitter region 15, inner trenches are disposed on the N-type long base region 18 and the P-type short base region 14, a glass passivation 16 is disposed in the inner trenches, the inner trenches surround the P-type short base region 14, the N + -type emitter region 15, the gate electrode G42 and the cathode electrode K41, a resistor 13 is disposed between the gate electrode G42 and the cathode electrode K41, and a resistance value of the resistor 13 is 1 kiloohm.
When dust in a factory building needs to be introduced to an external place, and current IG is applied between a gate electrode G42 and a cathode electrode K41, a voltage drop VR is generated on a resistor 13, when the voltage drop VR is larger than or equal to a threshold voltage of a P-N junction, a silicon controlled rectifier 4 is triggered to start a silicon controlled rectifier switch, an electromagnetic valve 3 is opened, namely an outlet of a flue pipe 1 is opened, meanwhile, a motor is started, a motor output shaft drives a rotating shaft 11 to rotate, the rotating shaft 11 drives a fan blade 2 to rotate, wind power generated by the rotation of the fan blade 2 blows towards a pipe opening of the flue pipe 1, wind power generated by the other side of the fan blade 2 forms suction force to suck the dust in the factory building into the flue pipe 1, and due to the large caliber of the flue pipe 1, airflow is mainly discharged through the flue pipe 1, meanwhile, the dust is discharged outside the factory building, and the silicon controlled rectifier switch is closed after the dust is discharged outside the factory building, close solenoid valve 3 promptly, the motor drives the wind-force that flabellum 2 rotated the production when passing through flue pipe 1, because solenoid valve 3 closes, the air current can flow in venturi 6, because venturi 6's throat is less than the longitudinal section area at both ends, therefore, when wind-force passes through venturi 6 throat, the wind-force velocity of flow accelerates, pressure diminishes, when pressure diminishes, the raceway 8 of throat department intercommunication inhales venturi 6 with the water in the water tank 9 in, wind and flowing water mix, flow to in the factory building through hose 7, carry out the humidification to the factory building, and still can reduce the circulation of dust.
By utilizing the high resistance characteristic of the sub-surface layer of the short base zone diffusion layer, the external 1K omega resistor 13 is integrated inside the chip between G and K to form the resistor 13, when current IG is added between the gate pole and the cathode of the controllable silicon 4, a voltage drop VR is generated on the resistor 13, and the controllable silicon 4 can be triggered only when the VR is larger than or equal to the threshold voltage VO of a P-N junction. The defects of poor temperature characteristic, large IGT discreteness, high holding current, low switching speed and large VTM of the micro-triggering one-way controllable silicon 4 in the current market are overcome, the performance of the controllable silicon 4 is effectively improved, and particularly the high-temperature characteristic of the triggering current is greatly improved.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (6)

1. Controlling means based on sensitive trigger silicon controlled rectifier, its characterized in that: including flue pipe and the motor of setting outside the flue pipe, the flue intraductal pivot that is equipped with, pivot one end is fixed on the motor, be fixed with the flabellum on the pivot other end, the blade surface orientation of flabellum the flue pipe mouth of pipe, the flue pipe mouth of pipe is equipped with the solenoid valve, still includes silicon controlled switch and two hoses, the silicon controlled switch electricity is connected the solenoid valve, flue pipe both sides are equipped with the through-hole respectively, two the through-hole is located flue pipe upper portion is located flue pipe both sides are equipped with venturi respectively, venturi throat is equipped with the raceway, the venturi below is equipped with the water tank, the water tank intercommunication the raceway, venturi one end intercommunication the through-hole, the venturi other end intercommunication the hose.
2. The control device based on the sensitive trigger thyristor of claim 1, wherein: the silicon controlled switch comprises a silicon controlled rectifier, a P-type anode region is arranged on the silicon controlled rectifier, an N-type long base region is arranged on the upper surface of the P-type anode region, an anode electrode A is arranged on the lower surface of the P-type anode region, a P-type short base region is arranged on the N-type long base region, and an N-type short base region is arranged on one side of the P-type short base regionTen pieces of clothThe type emitter region, the opposite side is equipped with gate electrode G on the short base region of P type, be equipped with cathode electrode K on the N + type emitter region, the long base region of N type with be equipped with interior slot between the short base region of P type, interior slot surrounds the short base region of P type, gate electrode G and cathode electrode K, gate electrode G with be equipped with resistance between the cathode electrode K.
3. The control device based on the sensitive trigger thyristor of claim 2, wherein: the resistance value of the resistor is 1 kilo-ohm.
4. The control device based on the sensitive trigger thyristor of claim 1, wherein: a water inlet is formed in the water tank, and a wood plug is arranged in the water inlet.
5. The control device based on the sensitive trigger thyristor of claim 4, wherein: the bottom of the water tank is provided with a support frame, and one end of the support frame is fixed on the outer pipe wall of the flue pipe.
6. The control device based on the sensitive trigger thyristor of claim 1, wherein: the hose is made of natural latex.
CN201711167964.5A 2017-11-21 2017-11-21 Control device based on sensitive trigger silicon controlled rectifier Active CN107817826B (en)

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Publication number Priority date Publication date Assignee Title
CN108599624B (en) * 2018-07-02 2024-02-02 浙江理工大学 Flue-indoor temperature difference energy collecting device

Citations (6)

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Publication number Priority date Publication date Assignee Title
CN101436611A (en) * 2008-11-18 2009-05-20 无锡创立达科技有限公司 Sensitive triggering unidirection silicon controlled
CN101619881A (en) * 2009-06-16 2010-01-06 长沙凯天环保科技有限公司 Dedusting system of whole factory building
CN201799192U (en) * 2010-09-15 2011-04-20 张步芳 Cyclone dust-removal desulphurization device
CN205627441U (en) * 2016-05-26 2016-10-12 周倩 Novel electric automatization removes dust device
CN106229579A (en) * 2016-08-19 2016-12-14 东莞力朗电池科技有限公司 A kind of battery management independence automatic cooling system
CN107137989A (en) * 2017-05-25 2017-09-08 贵港市鑫宏木业有限公司 A kind of sheet material factory building dust exhaust apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101468274A (en) * 2007-12-28 2009-07-01 海斯博特（北京）科技有限公司 Wet dust separator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101436611A (en) * 2008-11-18 2009-05-20 无锡创立达科技有限公司 Sensitive triggering unidirection silicon controlled
CN101619881A (en) * 2009-06-16 2010-01-06 长沙凯天环保科技有限公司 Dedusting system of whole factory building
CN201799192U (en) * 2010-09-15 2011-04-20 张步芳 Cyclone dust-removal desulphurization device
CN205627441U (en) * 2016-05-26 2016-10-12 周倩 Novel electric automatization removes dust device
CN106229579A (en) * 2016-08-19 2016-12-14 东莞力朗电池科技有限公司 A kind of battery management independence automatic cooling system
CN107137989A (en) * 2017-05-25 2017-09-08 贵港市鑫宏木业有限公司 A kind of sheet material factory building dust exhaust apparatus

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