CN209242854U - CN+DN sewage treatment control system based on PLC - Google Patents
CN+DN sewage treatment control system based on PLC Download PDFInfo
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- CN209242854U CN209242854U CN201821771923.7U CN201821771923U CN209242854U CN 209242854 U CN209242854 U CN 209242854U CN 201821771923 U CN201821771923 U CN 201821771923U CN 209242854 U CN209242854 U CN 209242854U
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Abstract
The utility model discloses a kind of CN+DN sewage treatment control system based on PLC, including the sewage conditioning tank being sequentially communicated by pipeline, multiple filter tanks CN, multiple filter tanks DN, clear water reserviors, PLC system, PLC system by the automatic height of ultrasonic level gage in sewage conditioning tank open it is low stop control sewage pump, automatic adjustment Aeration fan is compared with setting value by the value of feedback of the dissolved oxygen instrument in the filter tank CN, by to backwash water pump, the control of backwash blower and respective valves, automatic fitration/the backwash in the filter tank timing controlled CN and the filter tank DN, the CN+DN sewage treatment control system based on PLC of the utility model, the process of CN+DN sewage treatment is set to obtain centralized control, improve the degree of automation, reduce artificial execute-in-place, preferably realize to whole process Automation control, improve benefit, achieve the purpose that the personnel reduction, synergy, effluent quality be effectively ensured.
Description
Technical field
The utility model relates to sewage disposal device, especially a kind of CN+DN sewage treatment control system based on PLC.
Background technique
CN+DN is the abbreviation of denitrification process, and CN+DN processing technique is one of sewage treatment treatment process, practical
In, it is not high that there is the degree of automation, needs on-site manual operation and field data that cannot grasp in time, leads to scene
Operation maintenance personnel is more, equipment fault is more, fault point is difficult to find that and is discharged and is difficult to the defects of up to standard.
Summary of the invention
In order to make the process control of sewage treatment, the automation of process and the minimizing of the energy, medicament, operation maintenance personnel are realized
Personnel reduction and enlargement, and reduce the failure rate of equipment, effective to guarantee that effluent quality is up to standard, the utility model provides one kind and is based on
The CN+DN sewage treatment control system of PLC.
The technical solution adopted in the utility model is as follows: the CN+DN sewage treatment control system based on PLC, including passes through
Sewage conditioning tank that pipeline is sequentially communicated, multiple filter tanks CN, multiple filter tanks DN, clear water reserviors, PLC system, the sewage conditioning tank
Interior to be equipped with ultrasonic level gage, sewage pump, sewage lifting pump discharge and pipeline pass through sewage pump outlet electric valve door
Connection, each filter tank CN connects corresponding Aeration fan and backwash blower, and passes through pipeline and the backwash being arranged in clear water reserviors
Water pump connection, in respective line be equipped with inlet valve, aeration valve, backwash intake valve, backwash inlet valve, backwash outlets flap valve,
Exhaust-valve, outlet pneumatic gate valve, and it is interior equipped with ultrasonic level gage, dissolved oxygen instrument；Each filter tank DN connects corresponding backwash wind
Machine is simultaneously connect with the backwash water pump being arranged in clear water reserviors by pipeline, in respective line equipped with inlet valve, backwash intake valve,
Backwash inlet valve, backwash outlets flap valve, exhaust-valve and outlet pneumatic gate valve, and interior set ultrasonic level gage；In clear water reserviors
Equipped with backwash water pump, ultrasonic level gage, backwash water pump outlet is connect with pipeline by backwash water pump outlet electric valve door；PLC
System includes a main PLC and multiple first substations PLC, multiple 2nd substations PLC, the corresponding inlet valve in each filter tank CN, exposure
It is air valve, backwash intake valve, backwash inlet valve, backwash outlets flap valve, exhaust-valve, outlet pneumatic gate valve, ultrasonic level gage, molten
It solves oxygen instrument and configures the first substation PLC, the corresponding inlet valve in each filter tank DN, backwash intake valve, backwash inlet valve, backwash go out
Mouth flap valve, exhaust-valve, outlet pneumatic gate valve, ultrasonic level gage configure the 2nd substation PLC, the dirt in sewage conditioning tank
Water elevator pump, ultrasonic level gage, sewage pump outlet electric valve door and the backwash water pump in clear water reserviors, supersonic liquid level
Meter, backwash water pump outlet electric valve door access main PLC, between main PLC and the first substation PLC, the 2nd substation PLC by industry with
Too network switch is connected.
Further, main PLC by the automatic height of ultrasonic level gage in sewage conditioning tank open it is low stop control sewage lifting
Pump, is arranged chain between sewage pump and sewage pump outlet valve.
Further, the first substation PLC is compared by the value of feedback of the dissolved oxygen instrument in the filter tank CN with setting value certainly
Dynamic to adjust Aeration fan, Aeration fan is arranged chain with corresponding aeration valve.
Further, PLC system passes through the control to backwash water pump, backwash blower and respective valves, timing controlled CN
Automatic fitration/the backwash in filter tank and the filter tank DN, the filter tank CN and the backwash in turn of the filter tank DN, one pond of each backwash.
The beneficial effects of the utility model are as follows: the CN+DN sewage treatment control system based on PLC of the utility model,
So that the process of CN+DN sewage treatment is obtained centralized control, improves the degree of automation, reduce artificial execute-in-place, it is preferably real
It now to the automation control of whole process, improves benefit, achievees the purpose that the personnel reduction, synergy, effluent quality is effectively ensured.
Detailed description of the invention
Fig. 1 is the system structure diagram of the utility model.
Specific embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model
Work more comprehensively, meticulously describes, but the protection scope of the utility model is not limited to embodiment in detail below.
As shown in Figure 1, the CN+DN sewage treatment control system based on PLC of the utility model, including successively by pipeline
The sewage conditioning tank 101 of connection, multiple filter tanks CN 202, multiple filter tanks DN 302, clear water reserviors 401, PLC system, the sewage tune
It saves and is equipped with ultrasonic level gage, sewage pump 102 in pond 101, the outlet of sewage pump 102 passes through sewage pump with pipeline
Outlet electric valve door 103 connects, and each filter tank CN connects corresponding Aeration fan 204 and backwash blower 206, and by pipeline with
Backwash water pump 402 in clear water reserviors 401 is arranged in connect, be equipped in respective line inlet valve 201, aeration valve 203, backwash into
Air valve 205, backwash inlet valve 207, backwash outlets flap valve 209, exhaust-valve 210, outlet pneumatic gate valve 208, and interior be equipped with surpasses
Sonic liquid-level meter, dissolved oxygen instrument；Each filter tank DN connects corresponding backwash blower 206 and by pipeline and setting in clear water reserviors
Backwash water pump 402 in 401 connects, be equipped in respective line inlet valve 301, backwash intake valve 303, backwash inlet valve 304,
Backwash outlets flap valve 306, exhaust-valve 307 and outlet pneumatic gate valve 305, and interior set ultrasonic level gage；In clear water reserviors 401
Equipped with backwash water pump 402, ultrasonic level gage, the outlet of backwash water pump 402 passes through backwash water pump outlet electric valve door 403 with pipeline
Connection；PLC system include a main PLC and multiple first substations PLC, multiple 2nd substations PLC, each filter tank CN it is corresponding into
Water valve, aeration valve, backwash intake valve, backwash inlet valve, backwash outlets flap valve, exhaust-valve, outlet pneumatic gate valve, ultrasonic solution
Position meter, dissolved oxygen instrument configure the first substation PLC, the corresponding inlet valve in each filter tank DN, backwash intake valve, backwash water inlet
Valve, backwash outlets flap valve, exhaust-valve, outlet pneumatic gate valve, ultrasonic level gage configure the 2nd substation PLC, sewage tune
Save sewage pump, ultrasonic level gage, sewage pump outlet electric valve door and backwash water pump in clear water reserviors in pond,
Ultrasonic level gage, backwash water pump outlet electric valve door access main PLC, between main PLC and the first substation PLC, the 2nd substation PLC
It is connected by industrial ethernet switch.
Main PLC by the automatic height of ultrasonic level gage in sewage conditioning tank open it is low stop control sewage pump (high liquid level
Open pump, low liquid level termination of pumping), chain (valve feedback " standard-sized sheet " shape is set between sewage pump and sewage pump outlet valve
When state, pump be can star；When valve does not feed back " standard-sized sheet " state, pump cannot start), water pump can be effectively protected in this way,
Prolong the service life.
First substation PLC is compared automatic adjustment aeration by the value of feedback of the dissolved oxygen instrument in the filter tank CN with setting value
To control dissolved oxygen in pond, near setting value, Aeration fan is aerated the frequency control fan outlet air quantity of blower with corresponding
Valve setting is chain, and (when valve feeds back " standard-sized sheet " state, blower be can star；When valve does not feed back " standard-sized sheet " state, blower is not
It can start).
PLC system passes through the control to backwash water pump, backwash blower and respective valves, the filter tank timing controlled CN and DN filter
Automatic fitration/the backwash in pond, the filter tank CN and the backwash in turn of the filter tank DN, one pond of each backwash.When the ultrasound in clear water reserviors
The liquid level of wave liquidometer feedback is automatically stopped backwash water pump when low；The unlatching of PLC control backwash water pump must have a preposition item
Part: backwash inlet valve has been switched on；The unlatching of control backwash blower must have a precondition: backwash intake valve has been opened
It opens；The unlatching of control Aeration fan must have a precondition: aeration valve has been switched on；The unlatching for controlling sewage pump must
Must have a precondition: inlet valve has been switched on.
There are two types of the methods of operation of whole system, the backwash of filtering and timing when normal operation.The pond CN is by normal filtration
When switching to backwash state, PLC system, which controls the motion flow of equipment, are as follows: closing water inlet valve --- -- closes Aeration fan --- -- and closes aeration
Valve --- -- closes outlet pneumatic gate valve --- -- to open backwash outlets flap valve --- -- to open backwash inlet valve --- -- and open backwash air inlet
Valve --- -- opens backwash blower --- -- and opens backwash water pump.When the pond CN switchs to filtration condition by backwash, PLC controls the movement of equipment
Process are as follows: closing backwash water pump, --- -- --- -- --- -- Guan Fanxi intake valve --- -- opens aeration to Guan Fanxi blower to Guan Fanxi inlet valve
Valve --- -- opens Aeration fan --- -- to drive water valve into --- -- to output a mouthful pneumatic gate valve --- -- and close backwash outlets flap valve.When the pond DN
When switching to backwash state by normal filtration, PLC controls the motion flow of equipment are as follows: closing water inlet valve --- -- closes outlet pneumatic brake
Door --- -- opens backwash outlets flap valve --- -- to open backwash inlet valve --- -- to open backwash intake valve and --- -- open backwash blower --- --
Open backwash water pump.When the pond DN switchs to filtration condition by backwash, PLC controls the motion flow of equipment are as follows: closes backwash water pump --- --
Closing backwash inlet valve, --- -- --- -- Guan Fanxi intake valve --- -- drives water valve --- -- into and outputs a mouthful pneumatic brake Guan Fanxi blower
Door --- -- closes backwash outlets flap valve.
With the help of the introduction present in aforementioned specification and relevant drawings, the technology people of the utility model fields
Member will be appreciated that many modifications and other embodiments of the utility model.It will consequently be understood that the utility model is not limited to
Disclosed specific embodiment, modification and other embodiments are to be considered as included in scope of the appended claims.Although this
Specific term is used in text, they are only used with generic and descriptive sense, rather than limitation.
Claims (4)
1. the CN+DN sewage treatment control system based on PLC, it is characterised in that: including the sewage tune being sequentially communicated by pipeline
Pond, multiple filter tanks CN, multiple filter tanks DN, clear water reserviors, PLC system are saved,
Ultrasonic level gage, sewage pump are equipped in the sewage conditioning tank, sewage lifting pump discharge and pipeline pass through sewage
The connection of elevator pump outlet electric valve door,
Each filter tank CN connects corresponding Aeration fan and backwash blower, and passes through pipeline and the backwash water being arranged in clear water reserviors
Pump connection is equipped with inlet valve, aeration valve, backwash intake valve, backwash inlet valve, backwash outlets flap valve, row in respective line
Empty valve, outlet pneumatic gate valve, and it is interior equipped with ultrasonic level gage, dissolved oxygen instrument；
Each filter tank DN connects corresponding backwash blower and is connect by pipeline with the backwash water pump being arranged in clear water reserviors, in phase
Pipeline is answered to be equipped with inlet valve, backwash intake valve, backwash inlet valve, backwash outlets flap valve, exhaust-valve and outlet pneumatic brake
Door, and interior set ultrasonic level gage；
Backwash water pump, ultrasonic level gage are equipped in clear water reserviors, backwash water pump outlet exports with pipeline by backwash water pump electronic
Valve connection；
PLC system include a main PLC and multiple first substations PLC, multiple 2nd substations PLC, each filter tank CN it is corresponding into
Water valve, aeration valve, backwash intake valve, backwash inlet valve, backwash outlets flap valve, exhaust-valve, outlet pneumatic gate valve, ultrasonic solution
Position meter, dissolved oxygen instrument configure the first substation PLC, the corresponding inlet valve in each filter tank DN, backwash intake valve, backwash water inlet
Valve, backwash outlets flap valve, exhaust-valve, outlet pneumatic gate valve, ultrasonic level gage configure the 2nd substation PLC, sewage tune
Save sewage pump, ultrasonic level gage, sewage pump outlet electric valve door and backwash water pump in clear water reserviors in pond,
Ultrasonic level gage, backwash water pump outlet electric valve door access main PLC, between main PLC and the first substation PLC, the 2nd substation PLC
It is connected by industrial ethernet switch.
2. the CN+DN sewage treatment control system based on PLC as described in claim 1, it is characterised in that: main PLC passes through dirt
The automatic height of ultrasonic level gage in water conditioning tank, which opens, low to stop controlling sewage pump, sewage pump and sewage lifting pump discharge
It is arranged between valve chain.
3. the CN+DN sewage treatment control system based on PLC as described in claim 1, it is characterised in that: the first substation PLC
Automatic adjustment Aeration fan is compared with setting value by the value of feedback of the dissolved oxygen instrument in the filter tank CN, Aeration fan and corresponding
Aeration valve setting it is chain.
4. the CN+DN sewage treatment control system based on PLC as described in claim 1, it is characterised in that: PLC system passes through
Automatic fitration/the backwash in the control to backwash water pump, backwash blower and respective valves, the filter tank timing controlled CN and the filter tank DN,
The filter tank CN and the backwash in turn of the filter tank DN, one pond of each backwash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821771923.7U CN209242854U (en) | 2018-10-30 | 2018-10-30 | CN+DN sewage treatment control system based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821771923.7U CN209242854U (en) | 2018-10-30 | 2018-10-30 | CN+DN sewage treatment control system based on PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209242854U true CN209242854U (en) | 2019-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821771923.7U Active CN209242854U (en) | 2018-10-30 | 2018-10-30 | CN+DN sewage treatment control system based on PLC |
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| Country | Link |
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| CN (1) | CN209242854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111495009A (en) * | 2020-04-09 | 2020-08-07 | 哈尔滨理工大学 | Self-cleaning filtering system based on P L C |
-
2018
- 2018-10-30 CN CN201821771923.7U patent/CN209242854U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111495009A (en) * | 2020-04-09 | 2020-08-07 | 哈尔滨理工大学 | Self-cleaning filtering system based on P L C |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.9 Muxia Road, Kaifu District, Changsha City, Hunan Province Patentee after: Hunan Xinyuan Environmental Technology Co., Ltd Address before: 410000 No. 199 Furong North Road, Kaifu District, Changsha City, Hunan Province Patentee before: Hunan Xinyuan Environmental Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |