CN104959338B - A kind of mist separator of desulfurization rinses valve group control method and system - Google Patents
A kind of mist separator of desulfurization rinses valve group control method and system Download PDFInfo
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- CN104959338B CN104959338B CN201510300996.2A CN201510300996A CN104959338B CN 104959338 B CN104959338 B CN 104959338B CN 201510300996 A CN201510300996 A CN 201510300996A CN 104959338 B CN104959338 B CN 104959338B
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- flushing valve
- flushing
- valve
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of mist separator of desulfurization rinses valve group control method and system, when (1) is connected to open command, PLC output point gives the first flushing valve open command；(2) the address A of PLC adds 1 every the time cumulation setting, and the size according to address A is controlled to the switch of flushing valve, and after last flushing valve is closed, address A is no longer cumulative；(3) after last flushing valve is closed, triggering address B is added up, and gives, in time interval T2 setting, the order that the first flushing valve is opened, and address B resets return to step (2) simultaneously, until being connected to the order of termination.Can avoid because open and close put in place disappearance and cause entirely to rinse the paralysis of valve group; after single valve cannot execute action or open and close put in place blackout, the sequentially-operating of valve group also can execute down; the flushing work of whole valve group will not be affected because of single valve; maximum protection is accomplished to demister equipment it is ensured that mist eliminator flushing system normally uses.
Description
Technical field
The present invention relates to a kind of mist separator of desulfurization rinses valve group control method and system.
Background technology
At present, mist separator of desulfurization flushing valve is to drive Open valve pair one by one by the input and output point of PLC module
Demister carries out clean in place, because valve quantity is excessive, under long use, due to site environment, valve Denso longevity
The uncertain factors such as life, valve frame for movement, PLC module life-span, the open and close state of each valve can be affected, and often goes out
Existing open and close put in place the faults such as blackout, lead to the sequence starting rinsing valve group it is impossible to be rinsed to demister.Can because
The fault of single valve and affect valve group sequentially-operating execution.
Content of the invention
The purpose of the present invention is exactly to solve the above problems, provide a kind of mist separator of desulfurization rinse valve group control method and
System, it is to avoid because open and close put in place disappearance and cause entirely to rinse the paralysis of valve group, even if single valve cannot execute action or
Open and close put in place blackout, and the sequentially-operating of valve group also can execute down, can't affect whole valve group because of single valve
Flushing work.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of mist separator of desulfurization rinses valve group control method, comprises the following steps：
(1), open the fresh water (FW) that flushing pump extracts in technique water tank, give to control the PLC open command rinsing threshold switch,
PLC output point gives the first flushing valve corresponding relay open command；
(2), the address A of PLC adds 1 every the time cumulation setting, and gives flushing valve according to size PLC of address A and corresponds to
Relay open command or closing order, PLC stops the control to flushing valve after being connected to the order of termination；Last control
After valve closing processed, address A is no longer cumulative enters step (3)；
(3), after PLC output point gives last flushing valve corresponding cut-off order disappearance, triggering address B opens
Begin to add up Jia 1 every setting time, the size according to address B gives the corresponding relay of first flushing valve again opens and order
Order, address B resets and returns described step (2) simultaneously.
Give the concrete side of the order of flushing valve open command or closing according to size PLC of address A in described step (2)
Method is：When address A is equal to nT1, judge whether nT1 is equal to NT1, wherein T1 is the time interval setting, and T1 is to be not equal to 0
Natural number；N is the natural number being less than or equal to N more than 0, and N is the total number of flushing valve, when nT1 is not equal to NT1, PLC output point
Give the (n+1)th flushing valve corresponding relay open command, give the n-th flushing valve corresponding cut-off order simultaneously；When
When nT1 is equal to NT1, give N flushing valve corresponding cut-off order, address A resets simultaneously.
Give first flushing valve corresponding relay open command again according to the size of address B in described step (3)
Concrete grammar be：When address B is equal to T2, give first flushing valve corresponding relay open command, wherein T2 is to set
Fixed time interval, T2 be not equal to 0 natural number.
In described step (2) and step (3), address A and address B is per second to be added up Jia 1.
A kind of employing mist separator of desulfurization rinses the system of valve group control method, and including technique water tank, described technique water tank leads to
Cross water-supply-pipe and connect demister, described water-supply-pipe is provided with flushing pump and mist eliminator flushing valve group；
Described mist eliminator flushing valve group includes three parallel branches of upper, middle and lower, and each branch road is designed with multiple series connection
Flushing valve；The action executing correspondence of each flushing valve is connected to the output of a PLC by a Control, each relay
Point.
6 flushing valves are designed with every branch road.
Described flushing pump is provided with two, flushing pump based on, and one is standby flushing pump, and two flushing pumps are connected in parallel on defeated
On waterpipe.
Beneficial effects of the present invention：This utility model can avoid because open and close put in place disappearance and cause entirely to rinse valve group
Paralysis, even if single valve cannot execute action or open and close put in place blackout, the sequentially-operating of valve group also can execute down
Go, can automatically skip trouble point, the flushing work of whole valve group can't be affected because of single valve, demister can be set
The standby protection accomplishing maximum is it is ensured that the normal use of mist eliminator flushing system.
Brief description
Fig. 1 is present system structural representation；
Wherein, 1. demister, 2. mist eliminator flushing valve group, 3. flushing pump, 4. technique water tank.
Specific embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of employing mist separator of desulfurization rinses the system of valve group control method, including technique water tank 4, described
Technique water tank 4 connects demister 1 by water-supply-pipe, and described water-supply-pipe is provided with flushing pump 3 and mist eliminator flushing valve group 2；
Described mist eliminator flushing valve group 2 includes three parallel branches of upper, middle and lower, and each branch road is designed with multiple series connection
Flushing valve；The action executing correspondence of each flushing valve is connected to the output of a PLC by a Control, each relay
Point.
6 flushing valves are designed with every branch road, come to 18 flushing valves, be respectively designated as the first flushing valve, second
Flushing valve ... the 18th flushing valve.
Described flushing pump sets 3 two, flushing pump based on, and one is standby flushing pump, and two flushing pumps 3 are connected in parallel on
On aqueduct.
A kind of mist separator of desulfurization rinses valve group control method, comprises the following steps：
Open the fresh water (FW) that flushing pump extracts in technique water tank, after the beginning control knob of PLC is pressed, PLC output point
Give the first flushing valve open command；As long as PLC not power-off, continue to send control command,
The address A of PLC is per second to be added up Jia 1, and when address A is equal to T1, the time interval that T1 sets for user, in this enforcement
4, T1 can be taken substantially to be not equal to 17T1 in example, now PLC output point gives the second flushing valve corresponding relay open command,
Give the first flushing valve corresponding cut-off order simultaneously；
When address A is equal to 2*4, now PLC output point gives the 3rd flushing valve corresponding relay open command, simultaneously
Give the second flushing valve corresponding cut-off order；The like,
When address A is equal to 17*4, now PLC output point gives the 18th flushing valve corresponding relay open command,
Give the 17th flushing valve corresponding cut-off order simultaneously；
Until when address A is equal to 18*4, address A is no longer added up, PLC output point gives the 18th flushing valve and corresponds to
Cut-off order；After PLC output point gives the 18th flushing valve corresponding cut-off order disappearance, trigger address
B is per second to be added up Jia 1, when address B is equal to T2, selects 3600, that is, after after an hour, give first in the present embodiment
Flushing valve corresponding relay open command, simultaneously address B reset and return address A re-start per second accumulative Jia 1, start newly
The flushing valve of one wheel controls, until PLC receives termination order.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not model is protected to the present invention
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not
Need to pay the various modifications that creative work can make or deformation still within protection scope of the present invention.
Claims (3)
1. a kind of mist separator of desulfurization rinses valve group control method, it is characterized in that, comprises the following steps：
(1), open the fresh water (FW) that flushing pump extracts in technique water tank, give to control the PLC open command rinsing threshold switch, PLC
Output point gives the first flushing valve corresponding relay open command；
(2), the address A of PLC adds 1 every the time cumulation setting, and gives according to size PLC of address A that flushing valve is corresponding to continue
Electrical equipment open command or the order of closing, PLC stops the control to flushing valve after being connected to the order of termination；Last flushing valve
After closing, address A is no longer cumulative enters step (3)；
(3), after PLC output point gives last flushing valve corresponding cut-off order disappearance, triggering address B starts often
Add up Jia 1 every setting time, the size according to address B gives first flushing valve corresponding relay open command again, together
When address B reset and return described step (2)；
Give the concrete grammar of the order of flushing valve open command or closing according to size PLC of address A in described step (2)
For：When address A is equal to nT1, judge that whether nT1 is equal to NT1, wherein T1 is the time interval setting, T1 be not equal to 0 oneself
So count；N is the natural number being less than or equal to N more than 0, and N is the total number of flushing valve, and when nT1 is not equal to NT1, PLC output point is given
Give the (n+1)th flushing valve corresponding relay open command, give the n-th flushing valve corresponding cut-off order simultaneously；Work as nT1
During equal to NT1, give N flushing valve corresponding cut-off order, address A resets simultaneously.
2. a kind of mist separator of desulfurization rinses valve group control method as claimed in claim 1, it is characterized in that, root in described step (3)
According to the concrete grammar that the size of address B gives the corresponding relay open command of first flushing valve again it is：When address, B is equal to
During T2, give first flushing valve corresponding relay open command, wherein T2 is the time interval setting, T2 is to be not equal to 0
Natural number.
3. a kind of mist separator of desulfurization rinses valve group control method as claimed in claim 1, it is characterized in that, described step (2) and step
Suddenly, in (3), address A and address B is per second to be added up Jia 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510300996.2A CN104959338B (en) | 2015-06-03 | 2015-06-03 | A kind of mist separator of desulfurization rinses valve group control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510300996.2A CN104959338B (en) | 2015-06-03 | 2015-06-03 | A kind of mist separator of desulfurization rinses valve group control method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104959338A CN104959338A (en) | 2015-10-07 |
| CN104959338B true CN104959338B (en) | 2017-03-01 |
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ID=54213518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510300996.2A Active CN104959338B (en) | 2015-06-03 | 2015-06-03 | A kind of mist separator of desulfurization rinses valve group control method and system |
Country Status (1)
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| CN (1) | CN104959338B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112691995A (en) * | 2020-12-31 | 2021-04-23 | 苏州欧赫电气自动化有限公司 | Pump set for vacuum cleaning and drying system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5296974A (en) * | 1976-02-12 | 1977-08-15 | Babcock Hitachi Kk | Washing of demister |
| JP3757609B2 (en) * | 1998-03-24 | 2006-03-22 | 石川島播磨重工業株式会社 | Mist eliminator cleaning method for flue gas desulfurization equipment |
| CN102423597B (en) * | 2011-10-14 | 2014-06-11 | 华南理工大学 | Intelligent anti-blocking demister used for wet flue gas desulfurization |
| CN203950166U (en) * | 2014-07-01 | 2014-11-19 | 辽宁省岭南环保高新技术产业园发展有限公司 | Mist separator of desulfurization timing, variable, transformation self-stripping system |
| CN204685550U (en) * | 2015-06-03 | 2015-10-07 | 济南伊斯达自控工程有限公司 | A kind of mist separator of desulfurization flushing valve set control system |
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| Publication number | Publication date |
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| CN104959338A (en) | 2015-10-07 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: A control method and system for flushing valve group of desulfurization demister Effective date of registration: 20220623 Granted publication date: 20170301 Pledgee: Shandong science and technology finance Company limited by guarantee Pledgor: Jinan Yisida Automation Engineering Co.,Ltd. Registration number: Y2022370000073 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230707 Granted publication date: 20170301 Pledgee: Shandong science and technology finance Company limited by guarantee Pledgor: Jinan Yisida Automation Engineering Co.,Ltd. Registration number: Y2022370000073 |