CN205516740U - Back -flushing and filtering system - Google Patents
Back -flushing and filtering system Download PDFInfo
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- CN205516740U CN205516740U CN201620297038.4U CN201620297038U CN205516740U CN 205516740 U CN205516740 U CN 205516740U CN 201620297038 U CN201620297038 U CN 201620297038U CN 205516740 U CN205516740 U CN 205516740U
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- filter
- control valve
- discharging opening
- self
- charging aperture
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Abstract
The utility model discloses a back -flushing and filtering system, include: the filter is including feed inlet, filter core, discharge gate, drain, the control valve sets up in feed inlet, discharge gate, drain for open and close and the switching of the medium flow direction, the supplementary recoil of automatic compensation formula nitrogen gas jar, UNICOM to discharge gate is switched by the control valve, supplies to go into operation or to the anti - usefulness of sweeping of impurity when maintaining, differential pressure transmitter sets up between feed inlet and discharge gate for detect the pressure differential between feed inlet and the discharge gate, differential pressure transmitter and control valve are connected to the control box for receive the switching of pressure differential signal and control valve, improved the filter effect.
Description
Technical field
This utility model relates to factory automation technical field, more specifically, it relates to a kind of back-flushing filtering system.
Background technology
In prior art, owing in filter medium, the polymer such as solid particle and colloid enters filter, easily condense in filter and backwash process and form filter cake, cause backwash difficulty, it is difficult to maintain and run continuously, can only frequently unpick and wash, expending a large amount of manpower financial capacity, economic benefit is the highest.
Utility model content
The deficiency existed for prior art, this utility model provides a kind of back-flushing filtering system, improves filter effect.
For achieving the above object, this utility model provides following technical scheme: a kind of back-flushing filtering system, it is characterised in that including:
Filter, including charging aperture, filter element, discharging opening, sewage draining exit；
Control valve, is arranged at charging aperture, discharging opening, sewage draining exit, in order to the switching opened and closed and medium flows to；
Automatic compensation type nitrogen auxiliary recoil tank, UNICOM to discharging opening is also switched by control valve, sweeps impurity is anti-during for going into operation or safeguarding；
Differential pressure transmitter, is arranged between charging aperture and discharging opening, for detecting the pressure differential between charging aperture and discharging opening；
Control chamber, connects differential pressure transmitter and control valve, in order to receive the switching of pressure difference signal and control valve.
As preferably, described control chamber includes:
Driving module, utilizing filtrate self hydraulic energy transfer is mechanical energy, drives filter element to rotate, and relies on filter element to promote axially-movable with sewage draining exit external pressure differential simultaneously；
Perform module, in order to complete to adjust the task of filter duty, at water inlet, sewage draining exit and backwash mouth are respectively equipped with an electrical ball valve, the on off state of electrical ball valve is controlled by control chamber, by changing the on off state of these three electrical ball valve, reaches to change the purpose filtering duty.
As preferably, described execution module includes:
Self-cleaning number of times, in order to carry out stored count to self-cleaning number of times；
Pressure difference shows, in order to show that connection is arranged on the pressure reduction change of pressure difference transmitter between charging aperture and discharging opening；
Time-out warning function, sets the self-cleaning time, and self-cleaning completes once at predetermined time intervals, when exceeding setting value, sends alarm signal.
As preferably, described filter is connected with anti-explosion is electromagnetic.
Compared with prior art, this utility model provides a kind of self-cleaning filter, improves filter effect.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is this utility model system diagram；
Reference: 1, filter；2, charging aperture；3, filter element；4, discharging opening；5, sewage draining exit；6, control valve；7, automatic compensation type nitrogen auxiliary recoil tank；8, differential pressure transmitter；9, control chamber；10, module is driven；11, module is performed；12, electrical ball valve；13, self-cleaning number of times；14, pressure difference shows；15, time-out warning function；16, explosion-proof solenoid valve.
Detailed description of the invention
It is described in further detail below in conjunction with embodiment and figure this utility model, but embodiment of the present utility model is not limited only to this.
With reference to Fig. 1, during back-flushing filtering system real work, after filter 1 puts into operation, medium passes through from below to up, the outer surface of filter element 3 intercepted by the granule foreign material in raw material, and clean liquid, by interior discharge, flows out through filter 1 outlet.Along with the aggregation retained on filter element 3 increases, the differential pressure between import and export material house steward is gradually increased, and when this differential pressure reaches a certain setting value, filter 1 enters backwash duty.The solid particle piled up on the outer surface of filter 1 element, by reverse flow when filtering, is rinsed out by flushing liquor.System with automatic compensation type nitrogen auxiliary recoil tank 7 and can external auxiliary gas, sweep impurity is anti-during for going into operation or safeguarding.Soiling solution is entered out-of-bounds in soiling solution tank by the soiling solution floss hole of filter 1.
With reference to Fig. 2, filter 1 is furnished with differential pressure transmitter 8 and control chamber 9, and when the fluid differential pressure that filter 1 is imported and exported reaches setting value, differential pressure transmitter 8 outputs signal to control chamber 9, and control chamber 9 output signal can drive on-the-spot explosion-proof solenoid valve.16, explosion-proof solenoid valve.16 are transferred to gas signal enabling actuator switching control valve 6 by the signal of telecommunication.Utilizing filtered raw material and automatic compensation type nitrogen auxiliary recoil tank 7 pressure itself from inside to outside filter 1 filter element 3 to be carried out back flush, and carry out the most one by one, the differential pressure of system returns to normal operating conditions, and arrives to signal next time.
Driving means
Utilizing filtrate self hydraulic energy transfer is mechanical energy, drives the rotor that surges to rotate, and relies on filter cylinder and sewage draining exit 5 external pressure differential to promote the rotor that surges to axially move simultaneously, thus drives rotation and the axially-movable realizing self-stripping unit.
Perform module
Perform module 11 and complete to adjust the task of filter element duty, at water inlet, sewage draining exit 5 and backwash mouth respectively equipped with an electrical ball valve 12, the on off state of electrical ball valve 12 can be by PLC control, by changing the on off state of these three electromagnetic valve, reach to change the purpose filtering duty.
Control system also has self-cleaning number of times 13, pressure difference show 14 and time-out warning function 15.
Control to use three kinds of modes
The first, pressure reduction mode: when filter screen inside and outside differential pressure exceedes predetermined value, differential pressure controller one signal of conveying start self-cleaning to control system, filter 1, until dirt sucking tube being detected and filtering barrel joint, self-cleaning terminates.
The second, timing mode: needing to set the self-cleaning time according to medium situation and production, self-cleaning completes once at predetermined time intervals
The third, electronic mode: when pressing power button, control system requires filter 1 self-cleaning once.Depending on this control mode is according to concrete working condition, flexibly and easily.
Specific embodiment described herein is only to this utility model spirit explanation for example, described specific embodiment can be made various amendment or supplements or use similar mode to substitute by this utility model person of ordinary skill in the field, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (4)
1. a back-flushing filtering system, it is characterised in that including:
Filter (1), including charging aperture (2), filter element (3), discharging opening (4), sewage draining exit (5)；
Control valve (6), is arranged at charging aperture (2), discharging opening (4), sewage draining exit (5), in order to the switching opened and closed and medium flows to；
Automatic compensation type nitrogen auxiliary recoil tank (7), UNICOM to discharging opening (4) is also switched by control valve (6), sweeps impurity is anti-during for going into operation or safeguarding；
Differential pressure transmitter (8), is arranged between charging aperture (2) and discharging opening (4), is used for detecting the pressure differential between charging aperture (2) and discharging opening (4)；
Control chamber (9), connects differential pressure transmitter (8) and control valve (6), in order to receive pressure difference signal and the switching of control valve (6).
Back-flushing filtering system the most according to claim 1, it is characterised in that: described control chamber (9) including:
Driving module (10), utilizing filtrate self hydraulic energy transfer is mechanical energy, drives filter element (3) to rotate, and relies on filter element (3) to promote axially-movable with sewage draining exit (5) external pressure differential simultaneously；
Perform module (11), in order to complete to adjust the task of filter (1) duty, in charging aperture (2), discharging opening (4) and sewage draining exit (5) are each equipped with an electrical ball valve (12), the on off state of electrical ball valve (12) is controlled by control valve (6), by changing the on off state of these three electrical ball valve (12), reach to change the purpose filtering duty.
Back-flushing filtering system the most according to claim 2, it is characterised in that: described execution module (11) including:
Self-cleaning number of times (13), in order to carry out stored count to self-cleaning number of times；
Pressure difference shows (14), in order to show that connection is arranged on the pressure reduction change of pressure difference transmitter between charging aperture and discharging opening；
Time-out warning function (15), sets the self-cleaning time, and self-cleaning completes once at predetermined time intervals, when exceeding setting value, sends alarm signal.
Back-flushing filtering system the most according to claim 1, it is characterised in that: it is connected with explosion-proof solenoid valve (16) on described filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620297038.4U CN205516740U (en) | 2016-04-11 | 2016-04-11 | Back -flushing and filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620297038.4U CN205516740U (en) | 2016-04-11 | 2016-04-11 | Back -flushing and filtering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205516740U true CN205516740U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620297038.4U Active CN205516740U (en) | 2016-04-11 | 2016-04-11 | Back -flushing and filtering system |
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| CN (1) | CN205516740U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964182A (en) * | 2017-04-21 | 2017-07-21 | 周海兵 | Pressure of turning one's coat wash type filter |
| CN110731157A (en) * | 2019-09-09 | 2020-01-31 | 山西资环科技股份有限公司 | Treatment method of intelligent biogas slurry water fertilizer preparation system |
-
2016
- 2016-04-11 CN CN201620297038.4U patent/CN205516740U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964182A (en) * | 2017-04-21 | 2017-07-21 | 周海兵 | Pressure of turning one's coat wash type filter |
| CN110731157A (en) * | 2019-09-09 | 2020-01-31 | 山西资环科技股份有限公司 | Treatment method of intelligent biogas slurry water fertilizer preparation system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |