CN202154632U - Central dust collection system with constant adjustable negative pressure - Google Patents
Central dust collection system with constant adjustable negative pressure Download PDFInfo
- Publication number
- CN202154632U CN202154632U CN2011202345200U CN201120234520U CN202154632U CN 202154632 U CN202154632 U CN 202154632U CN 2011202345200 U CN2011202345200 U CN 2011202345200U CN 201120234520 U CN201120234520 U CN 201120234520U CN 202154632 U CN202154632 U CN 202154632U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- pressure
- programmable logic
- negative pressure
- logic controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model relates to a central dust collection system with constant adjustable negative pressure. The central dust collection system comprises a programmable logic controller, a vacuum pump, a dust collection box body, pressure sensors, a dust collection main pipeline, a backblowing pipeline, a dust collection branch pipeline and a pipeline, wherein the upper end part of the dust collection box body is sleeved with a filter element, the top surface of the filter element is provided with an installation hole and a vent hole and an air backblowing pipe is arranged at the inner part of the filter element; one end of the backblowing pipeline is connected with the air backblowing pipe, while the other end of the backblowing pipeline is provided with a pulse backblowing control valve; the dust collection box body is provided with a dust inlet hole; one end of the dust collection branch pipeline is connected with a body of the dust collection main pipeline, while the other end of the dust collection branch pipeline is connected with a dust collection terminal; the vacuum pump is connected with the vent hole of the filter element; the filter element is internally provided with a second pressure sensor; the dust collection box body is internally provided with a third pressure sensor; and the vacuum pump, the second pressure sensor and the third pressure sensor are respectively and electrically connected with the programmable logic controller. The air backblowing pipe can be controlled to clear dust from the filter element, so that the service life of the filter element can be prolonged.
Description
Technical field
The utility model relates to a kind of central dust collecting system, relates in particular to a kind of central dust collecting system of constant scalable negative pressure that has.
Background technology
Development forms central authorities' dust collecting system according to the separate unit dust catcher; People are when using dust catcher that the operation area is cleaned; Find plurality of advantages such as dust catcher high efficiency, cleaning and non-secondary pollution, but for large-area working region, the power of separate unit dust catcher can not meet the demands; The dust catcher that moves around is not only taken a lot of work, and also receives the constraint of power line, sweep-up pipe simultaneously; So people were fixed on vacuum cleaner somewhere afterwards, be connected to a plurality of zones that the workshop needs the dust suction cleaning to the dust sucting pipeline of dust catcher, as long as suction tool is connected with dust sucting pipeline, opens valve and get final product dust suction during the dust suction cleaning.But the operating efficiency that such people carries out cleaning operation is lower, and people adopted the power that improves dust sucting pipeline, increase dust suction main frame afterwards, strengthens the exhausting amount of main frame; Carry out the same workshop of dust suction cleaning operation with two or more people, can accomplish cleaning in the short period of time.
Central authorities' dust collecting system mainly applies in the dedusting operation in dust cleaning, dust recovery, waste material cleaning, corrective maintenance and each commercial residential building sub-district of industrial enterprise's workshop, large-scale hotel or the like.Present central dust collecting system adopts one or more powerful vavuum pump to make the dust suction dynamic host, its vacuum and exhausting amount can both satisfy suction ports all in the central dust suction network when opening the simultaneously needed blast of dust suction operation, air quantity; By the look of it, can improve the operating efficiency of whole dust suction operation, there is more defective in the central dust collecting system of actual this type: wherein maximum defective is: working state of system cannot be regulated, and often is high power operation, and energy resource consumption is very big; And central dust collecting system is not monitored the duty of its filter core, to such an extent as to the action of the deashing of filter core is untimely inaccurate, causes the filter core life-span shorter, and the maintenance frequency of system is more frequent, improves the operating cost of system.
Summary of the invention
The utility model has solved the deficiency of prior art, and a kind of central dust collecting system of constant scalable negative pressure that has is provided, and this system can realize real unattended operation; And can autostop when no dust suction terminal works, realize energy-saving run to greatest extent, simultaneously the duty of monitoring filtering filter core in real time; And in time filter core is carried out deashing and handle; Can prolong the service life of filter core, keep system stability work, and through pipeline deashing control model; Pipeline is carried out clean, reduce accumulation and the propagation of bacterium.
The technical scheme that the utility model adopts is: a kind of have a constant scalable negative pressure central authorities dust collecting system, and it comprises programmable logic controller (PLC), vavuum pump, dust box, second pressure sensor, the 3rd pressure sensor, dust suction trunk line, dust suction branch pipe(tube), blowback pipeline and pipeline; The filter core of the nested cartridge type in the upper end of said dust box; The end face of filter core has installing hole and venthole; The inner accommodation space of filter core is provided with the air anti-blowpipe; The installing hole that one end of blowback pipeline passes the filter core end face is connected with the inlet end of air anti-blowpipe, and the other end of blowback pipeline is provided with the pulse backblowing control valve; Said dust box has into dirt hole, enters the dirt hole and is connected with the dirt end that goes out of dust suction trunk line; One end of dust suction branch pipe(tube) is connected with the pipe shaft of dust suction trunk line, and the other end of dust suction branch pipe(tube) is connected with the dust suction terminal; The suction port of vavuum pump is connected with the venthole of filter core through pipeline; Said second pressure sensor is arranged on filter core inside, and the 3rd pressure sensor is arranged in the dust box, and vavuum pump, second pressure sensor and the 3rd pressure sensor are electrically connected with programmable logic controller (PLC) respectively.
As preferably; Be provided with vacuum buffer tank between said vavuum pump and the dust box; Said vacuum buffer tank is provided with air inlet and gas outlet, and the suction port of vavuum pump is connected with said gas outlet through pipeline, and said air inlet is connected with the venthole of filter core through pipeline; The housing of said vacuum buffer tank is provided with the superpressure Machine guarding.
As preferably; Also be provided with pressure protection valve on the said air intake vacuum buffer tank shell; The control module of pressure protection valve is electrically connected with programmable logic controller (PLC), and the wind outlet of vavuum pump is provided with temperature sensor, and temperature sensor is electrically connected with programmable logic controller (PLC).
As preferably, the set inside of vacuum buffer tank has first pressure sensor, and first pressure sensor is electrically connected with programmable logic controller (PLC).
As preferably, said vavuum pump is a high pressure positive blower.
As preferably, air anti-blowpipe and blowback pipeline flexibly connect.
As preferably, the superpressure Machine guarding is a pressure relieving valve.
As preferably, described a kind of constant scalable negative pressure central authorities dust collecting system that has also comprises frequency converter, and the control module of vavuum pump is electrically connected with frequency converter, and the signal input part of frequency converter is electrically connected with programmable logic controller (PLC).
As preferably, said a kind of constant scalable negative pressure central authorities dust collecting system that has also comprises a display screen and input equipment, and display screen all is electrically connected with programmable logic controller (PLC) with, input equipment.
As preferably, said a kind of constant scalable negative pressure central authorities dust collecting system that has also comprises a touch-screen, and touch-screen is electrically connected with programmable logic controller (PLC).
As preferably, said a kind of constant scalable negative pressure central authorities dust collecting system that has also comprises a cabinet, DC power supply unit, AC power supplies switch and fan; The cabinet middle part is provided with dividing plate; Dividing plate is divided into accommodation space and following accommodation space with cabinet inside, and vacuum buffer tank, vavuum pump are installed on down in the accommodation space, and programmable logic controller (PLC), frequency converter, DC power supply unit and AC power supplies switch are installed in the accommodation space; Cabinet is provided with the fan installing hole; Fan is fixed on the solid through installing hole, and cabinet inside is provided with temperature sensor, and the control module of fan and temperature sensor all are electrically connected with programmable logic controller (PLC).
As preferably, programmable logic controller (PLC) comprises temperature control modules, pressure control module, pressure reduction control module, current control module and pressure protection valve driver module.
As preferably, the other end of blowback pipeline is provided with the compressed air heating cabinet.
As preferably, the dust suction trunk line is provided with pipeline deashing control valve.
Relative negative pressure is meant a relative atmospheric negative pressure described in the literary composition.
The beneficial effect that the utility model is obtained is: a kind of have a constant scalable negative pressure central authorities dust collecting system, comprises programmable logic controller (PLC), vavuum pump, dust box, second pressure sensor, the 3rd pressure sensor, dust suction trunk line, dust suction branch pipe(tube), blowback pipeline and pipeline; The filter core of the nested cartridge type in the upper end of said dust box; The end face of filter core has installing hole and venthole; The inner accommodation space of filter core is provided with the air anti-blowpipe; The installing hole that one end of blowback pipeline passes the filter core end face is connected with the inlet end of air anti-blowpipe, and the other end of blowback pipeline is provided with the pulse backblowing control valve; Said dust box has into dirt hole, enters the dirt hole and is connected with the dirt end that goes out of dust suction trunk line; One end of dust suction branch pipe(tube) is connected with the pipe shaft of dust suction trunk line; The other end of dust suction branch pipe(tube) is connected with the dust suction terminal; The suction port of vavuum pump is connected with the venthole of filter core through pipeline; Said second pressure sensor is arranged on filter core inside, and the 3rd pressure sensor is arranged in the dust box, and vavuum pump, second pressure sensor and the 3rd pressure sensor are electrically connected with programmable logic controller (PLC) respectively.The utility model can be realized real unattended operation, and can autostop when no dust suction terminal works, realizes energy-saving run to greatest extent; Simultaneously through the special control mode; The control air anti-blowpipe carries out dirt processing clearly to filter core, prolongs the service life of filter core, can also pass through pipeline deashing control model; Pipeline is carried out clean, reduce accumulation and the propagation of bacterium.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Reference numeral is:
1-AC power supplies switch, 2-frequency converter, 3-temperature sensor
4-fan, 5-vavuum pump, 6-vacuum buffer tank
7-filter core, 8-air anti-blowpipe, 9-dust box
10-dust suction branch pipe(tube), 11-dust suction terminal, 12-deashing by-pass valve control
13-dust suction trunk line, 14-the three pressure sensor, 15-the second pressure sensor
16-compressed air heating cabinet, 17-pulse backblowing control valve, 18-blowback pipeline
19-pipeline, 20-the first pressure sensor, 21-programmable logic controller (PLC)
22-DC power supply unit, 23-touch-screen, 24-pressure protection valve
25-pressure relieving valve.
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment the utility model is further described.
Embodiment:
As shown in Figure 1; A kind of have a constant scalable negative pressure central authorities dust collecting system, comprises programmable logic controller (PLC) 21, vavuum pump 5, dust box 9, second pressure sensor 15, the 3rd pressure sensor 14, dust suction trunk line 13, dust suction branch pipe(tube) 10 and pipeline 19; The filter core 7 of the nested cartridge type in the upper end of said dust box 9; The end face of filter core 7 has installing hole and venthole; Filter core 7 inner accommodation spaces are provided with air anti-blowpipe 8; The installing hole that one end of blowback pipeline 18 passes filter core 7 end faces is connected with the inlet end of air anti-blowpipe 8, and the other end of blowback pipeline 18 is provided with pulse backblowing control valve 17; Said dust box 9 has into dirt hole, enters the dirt hole and is connected with the dirt end that goes out of dust suction trunk line 13; One end of dust suction branch pipe(tube) 10 is connected with the pipe shaft of dust suction trunk line 13; The other end of dust suction branch pipe(tube) 10 is connected with dust suction terminal 11; The suction port of vavuum pump 5 is connected with the venthole of filter core 7 through pipeline 19; Said second pressure sensor 15 is arranged on filter core 7 inside, and said the 3rd pressure sensor 14 is arranged in the dust box 9, and vavuum pump 5, second pressure sensor 15 and the 3rd pressure sensor 14 are electrically connected with programmable logic controller (PLC) 21 respectively.
During system works; 5 pairs of dust suction trunk lines 13 of programmable logic controller (PLC) 21 control vavuum pumps, dust suction branch pipe(tube) 10 are bled; Make the relative atmospheric pressure of air pressure of 10 li of dust box 9, dust suction trunk line 13 and dust suction branch pipe(tube)s keep being negative pressure state; When the dust suction processing need be carried out in the zone at certain 11 place, dust suction terminal, open this terminal and carry out the dust suction operation; Dust or other fouling products get in the dust box 9 along dust suction branch pipe(tube) 10, dust suction trunk line 13, drop at the dust collection section of dust box 9 bottoms; After the dust that body is light gets in the dust box 9, may be attached to the surface of filter core 7, filter core 7 plays the foreign material that body is light isolates, and makes the gas that gets into vavuum pump 5 not contain solid impurity, the stable operation of protection vavuum pump 5.
During the system operate as normal, air gets into the dust suction casings from dust suction trunk line 13, gets into filter core 7 again, discharges from vavuum pump 5 at last; Along with system works; Dust attached to the light weight on filter core 7 surface is more and more; When the dust of light weight adheres to mostly, will have influence on the dust suction work of system, need carry out filter core 7 deashings this moment and handle; The deashing that the utility model carries out filter core 7 through 5 kinds of modes is handled, and is specific as follows:
1, pressure reduction control deashing; During the system operate as normal, the airflow smooth of internal system, the pressure differential between second pressure sensor 15 and the 3rd pressure sensor 14 remains on low scope; As less than 3KPa, after work a period of time, the surface attachment of filter core 7 has a large amount of dusts; Air-flow is hindered when dust box 9 gets into filter core 7 inside; Make the pressure differential between second pressure sensor 15 and the 3rd pressure sensor 14 increase, set numerical value when pressure differential increases to surpass, like 8KPa; This moment, programmable logic controller (PLC) 21 control systems carried out the processing of filter core 7 deashings; Treatment step is following: being in the outside end of filter core 7 and the compressed air casing is housed is connected of blowback pipeline 18, and to control compressed air and get into filter core 7 inside with the mode at certain hour interval through blowback pipeline 18, filter core 7 body internal pressures increase rapidly; A compressed air part sucks vavuum pump 5 through pipeline 19; A part gets into dust box 9 through filter core 7, and compressed air carries out blowback to filter core 7, makes to drop in the dust box 9 attached to the dust on the filter core 7; Simultaneity factor is in running order always; Pressure differential between second pressure sensor 15 and the 3rd pressure sensor 14 returns in the numerical value of setting; Then stop deashing, close the pulse backblowing control valve 17 of blowback pipeline 18 other ends, handle through the clear dirt that filter core 7 is carried out; The service life of prolongation system, the service property (quality) of raising system.
2, Current Control deashing; During the system operate as normal, filter core 7 inside or dust box 9 inside are in the state of relative negative pressure, before system's operation, this relative negative pressure value are set, and are kept the size of current of this relative negative-pressure vacuum pump 5 during the setting operate as normal; After the system works; System detects the running current size of vavuum pump 5 automatically; When if system runs to the relative negative pressure value of setting, detect vavuum pump 5 electric currents obviously greater than setting size of current, as greater than setting more than the electric current 0.5A; Programmable logic controller (PLC) 21 controlled filter filter cores 7 deashings action this moment equates with setting value or close up to the current value of vavuum pump 5.
3, FREQUENCY CONTROL deashing; Behind the system boot, when system's operate as normal, and the dust suction terminal 11 that is connected with dust suction branch pipe(tube) 10 is not when working, and the pressure of internal system drops to certain value; Be reduced to certain negative pressure relatively like the pressure in filter core 7 inside or the dust box 9, vavuum pump 5 quits work, and the pressure of internal system slowly rises; Rise to certain value, vavuum pump 5 is restarted work, and the pressure of internal system descends; Drop to certain value, vavuum pump 5 stops again, so repeatedly; When system just often; The frequency of vavuum pump 5 work is stable and maintains certain scope; If detecting the running frequency of vavuum pump 5 automatically, system obviously exceeds this scope, such as the upper limit 8Hz that exceeds this scope, and programmable logic controller (PLC) 21 controlled filter filter cores 7 deashings action this moment; Running frequency up to vavuum pump 5 returns in this scope, or near this scope.
4, timing controlled deashing; System is no matter filter core 7 is in any state, and programmable logic controller (PLC) 21 control systems regularly give filter core 7 deashings.
5, workflow deashing; Programmable logic controller (PLC) 21 control systems carried out a deashing operation before each start or shutdown.
Further; Be provided with vacuum buffer tank 6 between said vavuum pump 5 and the dust box 9; Said vacuum buffer tank 6 is provided with air inlet and gas outlet, and the suction port of vavuum pump 5 is connected with said gas outlet through pipeline 19, and said air inlet is connected with the venthole of filter core 7 through pipeline 19; The housing of said vacuum buffer tank 6 is provided with the superpressure Machine guarding, and the superpressure Machine guarding is a pressure relieving valve 25, pressure relieving valve 25 and vacuum buffer tank 6 mechanical connections.
Vacuum buffer tank 6 is arranged between vavuum pump 5 and the dust box 9, can play the effect of protection vavuum pump 5; When the instrument of system malfunctioning, as: second pressure sensor 15 and the 3rd pressure sensor 14 are malfunctioning, and pipeline 19 is in blocked state again; Vavuum pump 5 just possibly be in the superpressure running status, and promptly the pressure values at the suction port place of vavuum pump 5 is very low, makes that the load of vavuum pump 5 is bigger; At this moment; Pressure relieving valve 25 is opened automatically, and air gets into vacuum buffer tanks 6 and vavuum pumps 5 through pressure relieving valve 25, and protection vavuum pump 5 can superpressure, overlond running.
Further; Also be provided with pressure protection valve 24 on said air intake vacuum buffer tank 6 housings; The control module of pressure protection valve 24 is electrically connected with programmable logic controller (PLC) 21, and the wind outlet of vavuum pump 5 is provided with temperature sensor 3, and temperature sensor 3 is electrically connected with programmable logic controller (PLC) 21.
When pressure relieving valve 25 work also situation occurs; The gas flow that gets into vavuum pump 5 is not enough; Vavuum pump 5 overlond runnings, the leaving air temp of vavuum pump 5 rises gradually simultaneously, when leaving air temp reaches certain value; Programmable logic controller (PLC) 21 protects valve 24 to open gradually controlled pressure, increases the air inlet; When situation also appears in pressure protection valve 24 work, to such an extent as to leaving air temp rises always, up to surpassing a certain setting value, programmable logic controller (PLC) 21 will be controlled system-down, need maintenance and inspection with prompting.When just bringing into operation in system simultaneously, open pressure protection valve 24 earlier, No Load Start vavuum pump 5 guarantees vavuum pump 5 even runnings.
Further, the set inside of vacuum buffer tank 6 has first pressure sensor, 20, the first pressure sensors 20 to be electrically connected with programmable logic controller (PLC) 21.
During the system operate as normal; Vacuum buffer tank 6 internal pressures need maintain in certain range of negative pressure relatively; First pressure sensor 20 detects the pressure of vacuum buffer tank 6 in real time; Be transferred to programmable logic controller (PLC) 21 then, after handling through signal, the running status of programmable logic controller (PLC) 21 control vavuum pumps 5.
The pressure that detects in the vacuum buffer tank 6 when first pressure sensor 20 increases suddenly, as in 0.5 second, being increased to an atmospheric pressure, and keeps more than the 500ms, and system judges that vavuum pump 5 breaks down, and it is out of service that programmable logic controller (PLC) 21 will be controlled system.
Further, said vavuum pump 5 is a high pressure positive blower.
Further, described a kind of central dust collecting system of constant scalable negative pressure that has also comprises frequency converter 2, and the control module of vavuum pump 5 is electrically connected with frequency converter 2, and the signal input part of frequency converter 2 is electrically connected with programmable logic controller (PLC) 21.
Through frequency converter 2 is set, can control high pressure positive blower and do corresponding acceleration, deceleration action, the vacuum of accuracy-control system lets system remain on the stable vacuum value.
Further, said a kind of central dust collecting system of constant scalable negative pressure that has also comprises a touch-screen 23, and touch-screen 23 is electrically connected with programmable logic controller (PLC) 21.
Can observe the situation of change of each parameter of system through touch-screen 23, and system's state of living in, like states such as normal, the warnings that needs repairing; Can revise simultaneously the parameter value of setting, make system works at a preferable state.
As a kind of distortion of present embodiment, can touch-screen 23 be replaced with a display screen and input equipment, display screen and input equipment all are electrically connected with programmable logic controller (PLC) 21.
Further; Said a kind of central dust collecting system of constant scalable negative pressure that has; Also comprise a cabinet, DC power supply unit 22, AC power supplies switch 1 and fan 4, the cabinet middle part is provided with dividing plate, and dividing plate is divided into accommodation space and following accommodation space with cabinet inside; Vacuum buffer tank 6, high pressure positive blower are installed on down in the accommodation space; Programmable logic controller (PLC) 21, frequency converter 2, DC power supply unit 22 and AC power supplies switch 1 are installed in the accommodation space, and cabinet is provided with the fan installing hole, and fan 4 is fixed on the cabinet through the fan installing hole; Cabinet inside is provided with temperature sensor 3, and the control module of fan 4 and temperature sensor 3 all are electrically connected with programmable logic controller (PLC) 21.
Device is integrated in the cabinet, is convenient to management, cabinet inside can be through the method for operation of PLC controls fan simultaneously; And then the heat dissipating state in the adjusting cabinet, in the utility model, be provided with three groups of radiator fans and carry out temperature control; When system boot, control wherein one group of fan runs well, when the operating frequency of frequency converter is equal to or less than 28Hz; Control second group of fan operation, strengthen the cross-ventilation in the casing, strengthen radiating effect; Be higher than 45 when spending when cabinet temperature inside sensor 3 detects temperature in the cabinet, control the 3rd group of fan operation.DC power supply unit 22 is set, can when the power failure state of emergency, still can keeps system works.
Further, programmable logic controller (PLC) 21 comprises temperature control modules, pressure control module, pressure reduction control module, current control module and pressure protection valve driver module.
Further, air anti-blowpipe 8 flexibly connects with blowback pipeline 18.
At different scenes, connected modes such as fixing, rotation, up-down are arranged between air anti-blowpipe 8 and the blowback pipeline 18, thereby realize satisfying the deashing requirement of filter core under the different occasions, to reach the deashing purpose.
Further, the other end of blowback pipeline 18 is provided with compressed air heating cabinet 16.
System is when carrying out blowback cleaning and filtering filter core 7, and compressed air is by compressed air heating cabinet 16 heating, has avoided the compressed air of blowback because temperature is low when contacting with dust, and dust is condensate on the filter core 7, and ash-removal effect is better.
Further, the dust suction trunk line is provided with pipeline deashing by-pass valve control 12.
Pipeline deashing by-pass valve control 12 generally is installed in the end away from dust box 9 of dust suction trunk line 13; Or the terminal of dust suction trunk line 13; When system gets into pipeline deashing program, other valves of shutdown system, opening conduits deashing by-pass valve control 12 full-speed operation vavuum pumps 5; If when a plurality of pipeline deashing by-pass valve control 12 is wherein arranged, open each pipeline deashing by-pass valve control 12 in turn; System works keeps a period of time to get final product.
Present embodiment has following evident characteristic with respect to general central dust collecting system:
1, automaticity is high, fully unmanned;
2, pressure stability, constant, can adjust setting arbitrarily, satisfy different needs and carry out dust and material suction occasion;
3, energy-saving run; System quickens or the speed-down action step-less adjustment speed of service according to what of dust suction terminal works quantity automatically, and when no dust suction terminal works; System's meeting autostop; Reach energy-conservation to greatest extent, and the running current of system time detection vavuum pump, the vavuum pump overlond running prevented;
4, reduce maintenance frequency, the deashing of automatic controlled filter filter core of programmable logic controller (PLC) and pipeline is handled, and system is stable, the life-span is long, saves cost;
5, pipeline dust foreign matter is piled up and is lacked, the cleaning free from extraneous odour.
The utility model has been done at length explanation, and those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model, and does not break away from the essence and the scope of the utility model technical scheme.
Claims (10)
1. one kind has the central dust collecting system of constant scalable negative pressure, and it is characterized in that: it comprises programmable logic controller (PLC), vavuum pump, dust box, second pressure sensor, the 3rd pressure sensor, dust suction trunk line, dust suction branch pipe(tube), blowback pipeline and pipeline; The filter core of the nested cartridge type in the upper end of said dust box; The end face of filter core has installing hole and venthole; The inner accommodation space of filter core is provided with the air anti-blowpipe; The installing hole that one end of blowback pipeline passes the filter core end face is connected with the inlet end of air anti-blowpipe, and the other end of blowback pipeline is provided with the pulse backblowing control valve; Said dust box has into dirt hole, enters the dirt hole and is connected with the dirt end that goes out of dust suction trunk line; One end of dust suction branch pipe(tube) is connected with the pipe shaft of dust suction trunk line, and the other end of dust suction branch pipe(tube) is connected with the dust suction terminal; The suction port of vavuum pump is connected with the venthole of filter core through pipeline; Said second pressure sensor is arranged on filter core inside, and the 3rd pressure sensor is arranged in the dust box, and vavuum pump, second pressure sensor and the 3rd pressure sensor are electrically connected with programmable logic controller (PLC) respectively.
2. a kind of central dust collecting system of constant scalable negative pressure that has according to claim 1; It is characterized in that: be provided with vacuum buffer tank between said vavuum pump and the dust box; Said vacuum buffer tank is provided with air inlet and gas outlet; The suction port of vavuum pump is connected with said gas outlet through pipeline, and said air inlet is connected with the venthole of filter core through pipeline; The housing of said vacuum buffer tank is provided with the superpressure Machine guarding.
3. a kind of central dust collecting system of constant scalable negative pressure that has according to claim 2; It is characterized in that: also be provided with pressure protection valve on the said air intake vacuum buffer tank shell; The control module of pressure protection valve is electrically connected with programmable logic controller (PLC); The wind outlet of vavuum pump is provided with temperature sensor, and temperature sensor is electrically connected with programmable logic controller (PLC).
4. according to claim 2 or 3 described a kind of central dust collecting systems of constant scalable negative pressure that have, it is characterized in that: the set inside of vacuum buffer tank has first pressure sensor, and first pressure sensor is electrically connected with programmable logic controller (PLC).
5. a kind of central dust collecting system of constant scalable negative pressure that has according to claim 2, it is characterized in that: said vavuum pump is a high pressure positive blower, and blowback tracheae and blowback pipeline flexibly connect, and the superpressure Machine guarding is a pressure relieving valve.
6. a kind of central dust collecting system of constant scalable negative pressure that has according to claim 2; It is characterized in that: described a kind of central dust collecting system of constant scalable negative pressure that has; Also comprise frequency converter; The control module of vavuum pump is electrically connected with frequency converter, and the signal input part of frequency converter is electrically connected with programmable logic controller (PLC).
7. according to claim 1 or 2 or 3 or 5 or 6 described a kind of central dust collecting systems of constant scalable negative pressure that have, it is characterized in that: the other end of blowback pipeline is provided with the compressed air heating cabinet; The dust suction trunk line is provided with pipeline deashing control valve.
8. a kind of central dust collecting system of constant scalable negative pressure that has according to claim 7 is characterized in that: said a kind of central dust collecting system of constant scalable negative pressure that has, also comprise a touch-screen, and touch-screen is electrically connected with programmable logic controller (PLC).
9. a kind of central dust collecting system of constant scalable negative pressure that has according to claim 6; It is characterized in that: said a kind of central dust collecting system of constant scalable negative pressure that has; Also comprise a cabinet, DC power supply unit, AC power supplies switch and fan, the cabinet middle part is provided with dividing plate, and dividing plate is divided into accommodation space and following accommodation space with cabinet inside; Vacuum buffer tank, vavuum pump are installed on down in the accommodation space; Programmable logic controller (PLC), frequency converter, DC power supply unit and AC power supplies switch are installed in the accommodation space, and cabinet is provided with the fan installing hole, and fan is fixed on the solid through installing hole; Cabinet inside is provided with temperature sensor, and the control module of fan and temperature sensor all are electrically connected with programmable logic controller (PLC).
10. a kind of central dust collecting system of constant scalable negative pressure that has according to claim 1, it is characterized in that: programmable logic controller (PLC) comprises temperature control modules, pressure control module, pressure reduction control module, current control module and pressure protection valve driver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202345200U CN202154632U (en) | 2011-07-05 | 2011-07-05 | Central dust collection system with constant adjustable negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202345200U CN202154632U (en) | 2011-07-05 | 2011-07-05 | Central dust collection system with constant adjustable negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202154632U true CN202154632U (en) | 2012-03-07 |
Family
ID=45762286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202345200U Expired - Lifetime CN202154632U (en) | 2011-07-05 | 2011-07-05 | Central dust collection system with constant adjustable negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202154632U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283612A (en) * | 2011-07-05 | 2011-12-21 | 东莞市佛尔盛机电科技有限公司 | Central dust collection system with constantly-adjustable negative pressure |
| CN105763104A (en) * | 2016-04-07 | 2016-07-13 | 苏州工业园区职业技术学院 | Pneumatic anti-dust device for bearingless motor |
| WO2021237985A1 (en) * | 2020-05-29 | 2021-12-02 | 天佑电器（苏州）有限公司 | Method for cleaning filter of vacuum cleaner, and vacuum cleaner |
-
2011
- 2011-07-05 CN CN2011202345200U patent/CN202154632U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283612A (en) * | 2011-07-05 | 2011-12-21 | 东莞市佛尔盛机电科技有限公司 | Central dust collection system with constantly-adjustable negative pressure |
| CN105763104A (en) * | 2016-04-07 | 2016-07-13 | 苏州工业园区职业技术学院 | Pneumatic anti-dust device for bearingless motor |
| WO2021237985A1 (en) * | 2020-05-29 | 2021-12-02 | 天佑电器（苏州）有限公司 | Method for cleaning filter of vacuum cleaner, and vacuum cleaner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102283612B (en) | Central dust collection system with constantly-adjustable negative pressure | |
| CN101995055A (en) | Air conditioner capable of automatically removing dust | |
| CN207604908U (en) | A kind of central dust-removing system | |
| CN102512888B (en) | Automatic cleaner for filter screen | |
| CN111760388B (en) | Bag dust collector oriented to environmental protection monitoring and energy saving optimization | |
| CN202154632U (en) | Central dust collection system with constant adjustable negative pressure | |
| CN205341463U (en) | Dust pelletizing system is with linkage economizer | |
| CN110345597A (en) | A kind of system and method for air-conditioning return air dedusting | |
| CN205913882U (en) | Automatic blowback dust remover of coordinated control | |
| CN105797510A (en) | Industrial dust-collecting and environment-friendly device | |
| CN205815325U (en) | A kind of Factory Building cleaning dust-removing system | |
| CN210463537U (en) | Ventilation system device capable of automatically detecting and replacing filter cotton and filter cotton blockage detection device | |
| CN205102326U (en) | Air supplying device | |
| CN207035250U (en) | A kind of smoke exhaust ventilator with filter screen life tests | |
| CN105180341A (en) | Air supply device | |
| CN203425626U (en) | Full-automatic reverse-blowing high-efficiency air filter | |
| CN103230715B (en) | A kind of air filtering core cleaner | |
| CN202510425U (en) | Direct-current network controlled fan filter unit (FFU) | |
| CN115307300A (en) | Safe and efficient FFU intelligent group control system | |
| CN203678167U (en) | Dust remover | |
| CN200972233Y (en) | Ventilation energy-saving equipment for machine room | |
| CN203494309U (en) | Constant pressure air suction and dust removal device | |
| CN206709231U (en) | Intelligent air purification device | |
| CN110242603A (en) | A kind of small-sized low noise intelligence precipitron | |
| CN219826985U (en) | Deicing structure and gas turbine air inlet system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 523000 Guangdong city of Dongguan province Nancheng District of Sanyuanli Tong Peng industrial zone the first building first floor Patentee after: DONGGUAN FOERSHENG INTELLIGENT ELECTROMECHANICAL CO., LTD. Address before: The first building the first layer of Dongguan city in Guangdong Province, the 523130 Southern District of Dongguan City Industrial Zone Sanyuanli Peng Tong Sheng Electrical Technology Co. Ltd. Patentee before: Dongguan Foersheng Mechanical & Electronic Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120307 |