CN207148028U - It is a kind of can automatical dosing recirculated water on-line monitoring system - Google Patents
It is a kind of can automatical dosing recirculated water on-line monitoring system Download PDFInfo
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- CN207148028U CN207148028U CN201720986779.8U CN201720986779U CN207148028U CN 207148028 U CN207148028 U CN 207148028U CN 201720986779 U CN201720986779 U CN 201720986779U CN 207148028 U CN207148028 U CN 207148028U
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- line monitoring
- monitoring system
- acid
- recirculated water
- control system
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Abstract
The utility model discloses it is a kind of can automatical dosing recirculated water on-line monitoring system, including on-line monitoring system, control system and automatic device of adding acid, it is characterized in that, on-line monitoring system gathers circulating water quality signal, and transmitted by transmitter to control system, control system converts and shows the water quality parameter of recirculated water in real time, and controls the acid adding amount of the acid adding measuring pump of automatic device of adding acid.The recirculated water on-line monitoring system design science of the automatical dosing, it is rational in infrastructure, solve the problems, such as manual analysis data hysteresis band adjust pH value not in time, threaten safety in production, while automatically continuously acid adding solves the defects of artificial interruption acid adding, easy to use and reliable.
Description
Technical field
A kind of petrochemical industry, electric power and chemical industry environmental protection equipment are the utility model is related to, specifically one kind can automatical dosing
Recirculated water on-line monitoring system.
Background technology
The cooling tower circulating water system of petrochemical industry, electric power and chemical industry is Open recirling cooling water system mostly, and its is cold
But mode is based on ventilating and cooling.During system operation, with cooling water the dissolubility such as continuous evaporation, Ca2+, Mg2+ salt and
Other ion concentrations constantly raise, so as to be attached to heat exchange pipeline (on the inside of condenser copper tube), blower fan surface and cooling tower water drenching
On filler, a series of serious consequences such as fouling and corrosion are caused, system effectiveness can be not only reduced, can also shorten system and use the longevity
Life.In order that circulating cooling water quality is in stable state, it is necessary to it is high to discharge a part of constantly concentration, salt content in time
Water, while a certain amount of fresh water is filled into, to maintain the balance of system water.However, with the growing tension of water resource, as
Circulation, it is the carbonate hardness in water is converted into non-carbonate hardness the purpose of acid adding, prevents recirculated water high magnification numbe from transporting
Carbonic acid salts out during row, improves saturation calcium ion concentration；Generation free carbon dioxide is also beneficial to suppress carbonic acid in reaction in addition
The precipitation of salt crust.Run in the prescribed limit of the pH value of acid adding control recirculated water (depending on calcium ion concentration in water), water
Fouling tendency weakens the purpose for reaching and suppressing to change cool equipment fouling.Power plant generally uses at present adds sulfuric acid and inhibition resistance simultaneously
The Combined Treatment scheme of dirty agent, recirculated water can under high concentration ratio are safely and steadily run.
It is careless slightly because acid adding operation is very high to the technical requirements of operations staff, it will result in the danger to operating personnel
The corrosion of evil and circulating water condensing system and pipeline.The manual acid adding of past generally use, i.e., by manually entering to circulating water quality
Row right place sampling analysis, acid adding, blowdown and moisturizing are then carried out according to analysis result.Using manually acid adding, not only
Labor intensity is big, and the accuracy of acid adding amount is also low, certain manual control hysteresis quality be present, so as to cause cooling tower to circulate
The problem of water running is unstable.
At present, elaborate the acid adding that automatically controls of electric power plant circulating water in the paper and patent delivered, on-line checking and from
Dynamic acid adding part existing defects, after PH detection probes break down, how acid adding amount, which controls, is not resolved, circulating cooling
Corrosion rate and scale index inside the condenser of water system do not have solution yet.
Utility model content
The purpose of this utility model be to provide it is a kind of can automatical dosing recirculated water on-line monitoring system, it is above-mentioned to solve
The problem of being proposed in background technology.
To achieve the above object, the utility model provides following technical scheme：
It is a kind of can automatical dosing recirculated water on-line monitoring system, including on-line monitoring system, control system and it is automatic plus
Sour device, it is characterised in that one end of the on-line monitoring system is connected to cooling tower, cooling tower circulation by backwater sample pipeline
Water outlet pipe is connected by water sampling pipeline with on-line monitoring system；On-line monitoring system is communicatively connected to control system, automatically
Means for feeding acid is electrically connected with control system；The automatic device of adding acid includes the acid adding measuring pump of controlled system control, adds
The sour tank of one end connection storage acid solution of sour measuring pump, the other end connection cooling-tower circulating water inlet pipeline of acid adding measuring pump
The mouth of pipe；On-line monitoring system gathers circulating water quality signal, and is transmitted to control system, control system by transmitter and turned in real time
Change and show the water quality parameter of recirculated water, and control the acid adding amount for the acid adding measuring pump for adding automatic device of adding acid；The online prison
Examining system includes PH probes, conductometric detector, residual chlorine detecting instrument, foundry loam hapteron and the corrosion simulated device of condenser pipe；PH probes, electricity
Lead detector, residual chlorine detecting instrument detection real time data and be transferred to control system.
As further program of the utility model：The control system is DCS control systems or PLC control system.
As further program of the utility model：Also include being used for remote-operated host computer, control system communication link
It is connected to host computer.
As further program of the utility model：Remote switch amount control acid adding amount is included in PLC or DCS control systems
Analog control acid adding amount on the spot.
As further program of the utility model：Described foundry loam hapteron and the corrosion simulated device of condenser pipe include
Test strip.
Compared with prior art, the beneficial effects of the utility model are：
This can automatical dosing recirculated water on-line monitoring system it is reasonable in design, it is simple and compact for structure, solve manual analysis
Data hysteresis band come adjust pH value not in time, threaten the problem of safety in production, while automatically continuously acid adding solve it is artificial between
It is the defects of disconnected acid adding, easy to use and reliable；When PH, which pops one's head in, to break down, after remote switch amount can not control acid adding amount, on the spot
Analog quantity can control acid adding amount；, can by foundry loam hapteron and the periodic detection of the test strip of simulation condenser etching apparatus
Realize the monitoring inside condenser；Monitored and grasped using LCD as man-machine interface from the control model of PLC or DCS+ host computers
Make, can be achieved to monitor, automatically control in real time, the historical trending analysis of figure dynamic simulation and procedure parameter, possess alarm, pressure release
The functions such as protection, electric motor protecting, historical trace and report printing.It is of the present utility model can automatical dosing recirculated water on-line monitoring
System can be used in the cooling circulating water system of power system, adds sulfuric acid to reduce the pH value of system to circulation, makes
Carbonate hardness is converted into non-carbonate hardness in water, prevents that carbonic acid salts out when recirculated water high concentration multiple from running, improves full
And calcium ion concentration；So as to improve the concentration rate of recirculated water, rate of water make-up and blowdown flow rate are reduced, plays the work for environmental protection of saving water and energy
With.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of on-line monitoring system in the utility model.
Wherein：1st, cooling tower；2nd, on-line monitoring system；3rd, control system；4th, automatic device of adding acid；5th, host computer；6th, take
Water sample pipeline；7th, acid adding pipeline；8th, backwater sample pipeline；21st, PH pops one's head in；22nd, conductometric detector；23rd, residual chlorine detecting instrument；24th, glue
Mud hapteron；25th, the corrosion simulated device of condensation tubulation.
Embodiment
The purpose of this utility model is that providing one kind monitors water quality parameter on-line, can monitor water quality situation in real time, remote
Journey and on the spot situation control automatical dosing, can also simulate cooling system inner condenser tubulation internal corrosion and fouled condition.
The technical scheme of this patent is described in more detail with reference to embodiment.
Refer to Fig. 1-2, it is a kind of can automatical dosing recirculated water on-line monitoring system, including on-line monitoring system 2, control
System 3 and automatic device of adding acid 4；On-line monitoring system 2 gathers circulating water quality signal, and is transmitted by transmitter to control and be
System 3, control system 3 converts in real time and shows pH value, conductance, the water quality parameter of chlorine residue of recirculated water, and passes through Frequency Converter Control
Add the acid adding amount of the acid adding measuring pump of automatic device of adding acid 4；One end of the on-line monitoring system 2 is connected by backwater sample pipeline 8
Cooling tower 1 is connected to, the circulating water outlet pipe of cooling tower 1 is connected by water sampling pipeline 6 with on-line monitoring system 2；On-line monitoring system
System 2 is communicatively connected to control system 3, and automatic device of adding acid 4 is electrically connected with control system 3；
The on-line monitoring system 2 includes PH probes 21, conductometric detector 22, residual chlorine detecting instrument 23, foundry loam hapteron 24
Device 25 corrosion simulated with condenser pipe；PH probes 21, conductometric detector 22, residual chlorine detecting instrument 23 detect real time data and are transferred to control
System 3 processed；Online PH instrument is passed to control system by sample tap gathered data of the PH probes 21 in the upper end of water sampling pipeline 6
3, the state by control system 3 according to the PH scope adjustment acid adding metering pump works set, so as to realize the high efficiency of recirculated water
Use；Foundry loam hapteron 24 and the corrosion simulated device 25 of condenser pipe include test strip, and the periodic detection of test strip is realized
Monitoring inside condenser, the heater block inside the corrosion simulated device 25 of condenser pipe press down temperature in water sample and condenser to be measured
System, monitoring test piece is consistent with condenser material, so as to reach fouling and the corrosion condition inside effective simulation condenser, and leads to
The corrosion rate and scale index of condenser tubulation can be drawn by crossing detection of the timing to test piece；
The automatic device of adding acid 4 includes the acid adding measuring pump of controlled system 3 control, one end connection of acid adding measuring pump
The sour tank of acid solution is stored, the other end of acid adding measuring pump is communicated to the pipe on the circulating water inlet road of cooling tower 1 by acid adding pipeline 7
Mouthful；The forebay of cooling tower 1 is may be provided in, the signal that control system 3 is gathered by on-line monitoring system 2 is converted to analog quantity or control
Amount, by the acid adding amount of Frequency Converter Control acid adding measuring pump, when acid adding come pH value exceed default scope when, PH probes just general
Monitoring signals are transmitted to frequency converter, acid adding measuring pump can pump trip, during less than scope, measuring pump can automatic start, default
Value scope reaches height and opens low stop；
Preferably, the control system 3 is DCS control systems or PLC control system, is included in PLC or DCS control systems
Remote switch amount controls acid adding amount and on the spot Analog control acid adding amount；Under each equipment normal operation state, can start it is long-range and
Control on the spot, after having equipment failure, be converted to control on the spot, pass through the Analog control acid adding amount of setting；
Preferably, in addition to it is used for remote-operated host computer 5, control system 3 is communicatively connected to host computer 5；Run people
Member can be monitored in control room by host computer 5 to each controlled device of system, including motor opens, stops controlling, valve
Off status, the switching state of a distant place/on the spot and main technologic parameters have been opened in either on or off operation, equipment start-stop state, valve
Monitoring, and complete the interlock protection of equipment.
This can automatical dosing recirculated water on-line monitoring system it is reasonable in design, it is simple and compact for structure, solve manual analysis
Data hysteresis band come adjust pH value not in time, threaten the problem of safety in production, while automatically continuously acid adding solve it is artificial between
It is the defects of disconnected acid adding, easy to use and reliable；When PH, which pops one's head in, to break down, after remote switch amount can not control acid adding amount, on the spot
Analog quantity can control acid adding amount；, can by foundry loam hapteron and the periodic detection of the test strip of simulation condenser etching apparatus
Realize the monitoring inside condenser；Monitored and grasped using LCD as man-machine interface from the control model of PLC or DCS+ host computers
Make, can be achieved to monitor, automatically control in real time, the historical trending analysis of figure dynamic simulation and procedure parameter, possess alarm, pressure release
The functions such as protection, electric motor protecting, historical trace and report printing.It is of the present utility model can automatical dosing recirculated water on-line monitoring
System can be used in the cooling circulating water system of power system, adds sulfuric acid to reduce the pH value of system to circulation, makes
Carbonate hardness is converted into non-carbonate hardness in water, prevents that carbonic acid salts out when recirculated water high concentration multiple from running, improves full
And calcium ion concentration；So as to improve the concentration rate of recirculated water, rate of water make-up and blowdown flow rate are reduced, plays the work for environmental protection of saving water and energy
With.
Originally can automatical dosing recirculated water on-line monitoring system description in, it is necessary to explanation, unless otherwise clear and definite
Regulation and restriction, term " setting ", " connected " and " connection " should be interpreted broadly, can also for example, it may be fixedly connected
It is to be detachably connected, or is integrally connected；Can be joined directly together, can also be indirectly connected by intermediary, can be two
Individual element internal connection.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in this practicality
Concrete meaning in new.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Various changes can be made.
Claims (5)
1. it is a kind of can automatical dosing recirculated water on-line monitoring system, including on-line monitoring system (2), control system (3) and from
Dynamic means for feeding acid (4), it is characterised in that one end of the on-line monitoring system (2) is connected to cooling by backwater sample pipeline (8)
Tower (1), cooling tower (1) circulating water outlet pipe are connected by water sampling pipeline (6) with on-line monitoring system (2)；On-line monitoring system
System (2) is communicatively connected to control system (3), and automatic device of adding acid (4) is electrically connected with control system (3)；The automatical dosing
Device (4) includes the acid adding measuring pump of controlled system (3) control, and one end connection of acid adding measuring pump stores the sour tank of acid solution,
The mouth of pipe on other end connection cooling tower (1) circulating water inlet road of acid adding measuring pump；On-line monitoring system (2) gathers recirculated water
Water quality signal, and transmitted by transmitter to control system (3), control system (3) and convert in real time and show the water quality of recirculated water
Parameter, and control the acid adding amount for the acid adding measuring pump for adding automatic device of adding acid (4)；The on-line monitoring system (2) is visited including PH
Head (21), conductometric detector (22), residual chlorine detecting instrument (23), foundry loam hapteron (24) and the corrosion simulated device of condenser pipe (25)；PH
Probe (21), conductometric detector (22), residual chlorine detecting instrument (23) detection real time data are simultaneously transferred to control system (3).
2. it is according to claim 1 can automatical dosing recirculated water on-line monitoring system, it is characterised in that it is described control system
System (3) is DCS control systems or PLC control system.
3. it is according to claim 2 can automatical dosing recirculated water on-line monitoring system, it is characterised in that also include be used for
Remote-operated host computer (5), control system (3) are communicatively connected to host computer (5).
4. according to Claims 2 or 3 can automatical dosing recirculated water on-line monitoring system, it is characterised in that PLC or
In DCS control systems acid adding amount and on the spot Analog control acid adding amount are controlled comprising remote switch amount.
5. it is according to claim 1 can automatical dosing recirculated water on-line monitoring system, it is characterised in that described foundry loam
Hapteron (24) and the corrosion simulated device of condenser pipe (25) include test strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720986779.8U CN207148028U (en) | 2017-08-09 | 2017-08-09 | It is a kind of can automatical dosing recirculated water on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720986779.8U CN207148028U (en) | 2017-08-09 | 2017-08-09 | It is a kind of can automatical dosing recirculated water on-line monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN207148028U true CN207148028U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720986779.8U Expired - Fee Related CN207148028U (en) | 2017-08-09 | 2017-08-09 | It is a kind of can automatical dosing recirculated water on-line monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112062252A (en) * | 2020-09-03 | 2020-12-11 | 西安热工研究院有限公司 | Automatic control device and control method for pH of industrial circulating water |
-
2017
- 2017-08-09 CN CN201720986779.8U patent/CN207148028U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112062252A (en) * | 2020-09-03 | 2020-12-11 | 西安热工研究院有限公司 | Automatic control device and control method for pH of industrial circulating water |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180327 Termination date: 20190809 |