CN108150997A - Waste heat boiler dosing blowdown control system - Google Patents

Waste heat boiler dosing blowdown control system Download PDF

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Publication number
CN108150997A
CN108150997A CN201810015674.7A CN201810015674A CN108150997A CN 108150997 A CN108150997 A CN 108150997A CN 201810015674 A CN201810015674 A CN 201810015674A CN 108150997 A CN108150997 A CN 108150997A
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CN
China
Prior art keywords
dosing
drum
controller
control
stove water
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.)
Pending
Application number
CN201810015674.7A
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Chinese (zh)
Inventor
王晓晶
王岗
王雁飞
薛昊洋
刘小辉
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China ENFI Engineering Corp
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China ENFI Engineering Corp
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Priority to CN201810015674.7A priority Critical patent/CN108150997A/en
Publication of CN108150997A publication Critical patent/CN108150997A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/48Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/486Devices for removing water, salt, or sludge from boilers
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00Control systems for steam boilers
    • F22B35/007Control systems for waste heat boilers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/38Determining or indicating operating conditions in steam boilers, e.g. monitoring direction or rate of water flow through water tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/48Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/54De-sludging or blow-down devices
    • F22B37/545Valves specially adapted therefor

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Control Of Non-Electrical Variables (AREA)

Abstract

The invention discloses a kind of waste heat boiler dosing blowdown control systems, are related to waste heat boiler field.The system is arranged at waste heat boiler, and the waste heat boiler includes the drum, feed-regulating valve and the circulating pump that are connected through pipeline, the system comprises:Medicine system, drainage, detection device and controller.Medicine system is used for into the drum dosing to clear up incrustation scale therein;Drainage is used to periodically exhaust the stove water in the drum;Detection device is used to detect the data of the stove water of the drum discharge;Controller is used to receive the data of the detection device detection, and analyzes the data, control signal is sent out according to analysis result, the medicine system and the drainage to be controlled to work automatically.Therefore system automation degree of the present invention is high, shortens reaction time, reduces cost of labor.

Description

Waste heat boiler dosing blowdown control system
Technical field
The present invention relates to waste heat boiler field, more particularly, to a kind of waste heat boiler dosing blowdown control system.
Background technology
Waste heat boiler is key link indispensable in smelting process as a kind of energy saving, emission abatement device, is mainly made With being that the flue gas that furnace body in smelting process generates cools down, while the heat that flue gas cool-down link is discharged is for generating steaming Vapour, steam are used for other production processes again.Waste heat boiler operation stability be directly related to smelting process operating rate and The reliability service of follow-up related system.
Waste heat boiler initial operating stage, evaporation capacity is smaller in temperature-rise period, and stove water quality is held essentially constant.With drum The continuous evaporation of middle stove water, the concentration of stove water scale forming matter calcium and magnesium ion gradually increase, when content has been more than at this temperature molten When solution is spent, part of compounds will be precipitated from solution.The compound of precipitation may form crystal in water, it is also possible to heated Crystal is formed on face, if crystal suspension in water or formed deposit, as sediment.If crystallization process is happened at heated On face and it is solid be adhered on heating surface, then as incrustation scale.To ensure the normal operation of waste heat boiler, need to carry out incrustation scale Cleaning, calcium, magnesium compound are mostly the compound for being insoluble in water, correction additives phosphate are added in into boiler, while periodically will It is that mesh proceeds to one of effective method that stove water, which exhausts,.
Above equipment is referred to as waste heat boiler dosing blowdown control system in afterheat boiler system, the system is by dosing system System is formed with drainage two parts.Medicine system is to add in phosphate in phosphate solution case (being commonly called as dosing tank) by removing Brine forms solution, is passed in waste heat boiler drum with dosing pump and is chemically reacted with the calcium and magnesium ion in stove water, made Scale forming matter in stove water is transformed into soft grain slag.Drainage is the stove water quality in order to ensure waste heat boiler, periodically by one Part stove water exhausts, and with discharge part salinity and grain slag, ensures the salinity stabilization of stove water in certain level.Existing waste heat boiler The simple in equipment of dosing blowdown control system, the valve in drug feeding pipeline are manipulated, and blowdown only with manually-operated gate System is also according only to field experience, and periodically by being accomplished manually the manipulation of waste removal equipment, not only reaction time is long, and consumes big The human cost of amount.
Invention content
The present invention is directed at least solve the technology of length reaction time in the prior art and a large amount of human costs of consumption One of problem.For this purpose, the present invention proposes a kind of waste heat boiler dosing blowdown control system.
The present invention provides a kind of waste heat boiler dosing blowdown control systems, are arranged at waste heat boiler, the waste heat pot Stove includes the drum, feed-regulating valve and the circulating pump that are connected through pipeline, the system comprises:
Medicine system, for into the drum dosing to clear up incrustation scale therein;
Drainage, for periodically exhausting the stove water in the drum;
Detection device, for detecting the data of the stove water of the drum discharge;With
Controller for receiving the data of the detection device detection, and is analyzed the data, is sent out according to analysis result Signal is controlled, the medicine system and the drainage to be controlled to work automatically.
Further, the detection device is counted including PH, between the feed-regulating valve and the circulating pump, with Detect the pH value of the stove water of the drum discharge;
The medicine system includes:
Dosing tank is used to form and houses phosphate radical salting liquid;
Dosing pump is connected with the dosing tank, for the phosphate solution in the dosing tank to be pumped into the vapour In packet;
Dosing switch valve, between the dosing pump and the drum, the phosphate solution to be controlled to enter institute State drum;
First control cabinet is connected with the controller and the dosing pump, is believed with the control sent out according to the controller Number control dosing pump work;With
Second control cabinet is connected with the controller and the dosing tank, is believed with the control sent out according to the controller Number control dosing tank work;
Wherein, the controller is analyzed and determined, according to the pH detected values of the stove water received with described in control Dosing pump and dosing switch valve interlocking, it is ensured that the pH value of the drum is in preset threshold range.
Further, the controller is configured to:
When judging that the pH detected values of the stove water received are higher than the upper limit, first control cabinet is controlled to make the dosing Pump stops, and closes the dosing switch valve;Or
When judging that the pH detected values of the stove water received are less than lower limit, the dosing switch valve is controlled to open, and control Making first control cabinet makes the dosing pump startup.
Further, the detection device further includes fluid level transmitter, is installed at the dosing tank, described for detecting The liquid level condition of dosing tank;
The medicine system further includes dosing blow valve, is installed at the dosing tank, for discharging in the dosing tank Phosphate solution;
Wherein, the controller is configured to, according to the liquid level condition of the dosing tank received, the dosing be controlled to put Empty valve and medicine system work.
Further, the controller is configured to:
When judging that the liquid level of dosing tank received is higher than the upper limit, the dosing blow valve is controlled to open;
When judging that the liquid level of dosing tank received is less than the upper limit, the dosing blow valve is controlled to close;Or
When judging that the liquid level of dosing tank received is less than lower limit, first control cabinet is controlled to stop the dosing pump Only, the dosing switch valve is controlled to close.
Further, the detection device further includes phosphate analytical instrument, is followed mounted on the feed-regulating valve with described Between ring pump, for detecting the phosphoric acid root of the stove water of the drum discharge;
The drainage includes:
Sewage discharging regulation valve is connected by pipeline with the drum, for discharging the stove water in the drum;
Periodical blowdown expander is connected by pipeline with the sewage discharging regulation valve, for by the stove moisture in the drum From for indirect steam and spent hot water;With
Blowdown cooling bay is connected by pipeline with the periodical blowdown expander, for collecting the spent hot water after cooling down;
Wherein, the controller is analyzed and determined, according to the phosphoric acid root of the stove water received with described in control Sewage discharging regulation valve acts, it is ensured that discharges the spent hot water in time.
Further, the controller is configured to:
When judging that the phosphoric acid root of the stove water received is higher than the upper limit, the sewage discharging regulation valve is controlled to open;
When judging the phosphoric acid root of the stove water received less than the upper limit and being higher than lower limit, the blowdown is controlled to adjust Valve is closed;Or
When judging that the phosphoric acid root of the stove water received is less than lower limit, the medicine system is opened.
Further, the controller includes:
Receiving module, for receiving the data of the detection device detection;
Monitoring module is interlocked, for analyzing the real time data in the receiving module and proposing interlocked control;With
Control module, for controlling the medicine system and the drainage.
Further, the detection device further includes temperature element, is installed on the feed-regulating valve and the circulating pump Between, for detecting the stove coolant-temperature gage of the discharge of the drum.
Waste heat boiler dosing blowdown control system of the present invention detects the stove water of the drum discharge by detection device Data, data that the detection device detects are received by controller and analyze the data, control is sent out according to analysis result Signal processed, the medicine system and the drainage to be controlled to work automatically.Therefore system automation degree of the present invention Height shortens reaction time, reduces cost of labor.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description It obtains significantly or is recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment Significantly and it is readily appreciated that, wherein:
Fig. 1 is the schematic diagram of waste heat boiler dosing blowdown control system according to an embodiment of the invention;
Fig. 2 is the schematic diagram of waste heat boiler dosing blowdown control system in accordance with another embodiment of the present invention.
Reference numeral:
1st, waste heat boiler, 2, drum, 3, feed-regulating valve, 4, circulating pump, 5, sewage discharging regulation valve, 6, dosing switch valve, 7, Dosing blow valve, 8, periodical blowdown expander, 9, dosing pump, 10, dosing tank, 11, blowdown cooling bay, the 12, first control cabinet, 13rd, the second control cabinet, 14, dosing tank fluid level transmitter, 15, pH meter, 16, temperature element, 17, phosphate analytical instrument, 18 controls Device, 19 medicine systems, 20 drainages, 21 detection devices,
181st, receiving module, 182, interlocking monitoring module, 183, control module,
100th, waste heat boiler dosing blowdown control system.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
Fig. 1 is the schematic diagram of waste heat boiler dosing blowdown control system according to an embodiment of the invention.Such as Shown in Fig. 1, the present invention provides a kind of waste heat boiler dosing blowdown control systems 100, are arranged at waste heat boiler 1, described remaining Heat boiler 1 includes the drum 2, feed-regulating valve 3 and the circulating pump 4 that are connected through pipeline.The drum 2 passes through after detaching carbonated drink compound The flue that stove water is sent back to the waste heat boiler 1 by the feed-regulating valve 3 and the circulating pump 4 carries out Reusability.The system System includes:Medicine system 19, drainage 20, detection device 21 and controller 18.Medicine system 19 is used for into the drum 2 Dosing is to clear up incrustation scale therein.Drainage 20 is used to periodically exhaust the stove water in the drum 2.Detection device 21 is used to examine Survey the data for the stove water that the drum 2 is discharged.Controller 18 is used to receive the data that the detection device 21 detects, and analyze institute Data are stated, control signal is sent out according to analysis result, the medicine system 19 and the drainage 20 to be controlled to work automatically.
Waste heat boiler dosing blowdown control system 100 of the present invention detects the drum 2 by detection device 21 and discharges Stove water data, data that the detection device 21 detects are received by controller 18 and analyze the data, according to analysis As a result control signal is sent out, the medicine system 19 and the drainage 20 to be controlled to work automatically.Therefore it is of the present invention System automation degree is high, shortens reaction time, reduces cost of labor.
In addition, the present invention improves the service life of waste heat boiler while ensuring safety in production.
Fig. 2 is the schematic diagram of waste heat boiler dosing blowdown control system in accordance with another embodiment of the present invention. As shown in Fig. 2, in the present embodiment, the detection device 21 (referring to Fig. 1) includes pH meter 15, mounted on the feed-regulating valve 3 Between the circulating pump 4, to detect the pH value for the stove water that the drum 2 is discharged.Medicine system 19 (referring to Fig. 1) packet It includes:Dosing tank 10, dosing pump 9, dosing switch valve 6, the first control cabinet 12 and the second control cabinet 13.Wherein, dosing tank 10 is used for Formation and accommodating phosphate radical salting liquid.Dosing pump 9 is connected with the dosing tank 10, for by the phosphorus in the dosing tank 10 Acid salt solution is pumped into the drum 2.Dosing switch valve 6 is mounted between the dosing pump 9 and the drum 2, to control Phosphate solution is stated into the drum 2.First control cabinet 12 is connected with the controller 18 and the dosing pump 9, with basis The control signal that the controller 18 is sent out controls the dosing pump 9 to work.Second control cabinet 13 and the controller 18 and institute It states dosing tank 10 to be connected, the dosing tank 10 is controlled to work with the control signal sent out according to the controller 18.Wherein, it is described Controller 18 analyzed and determined according to the pH detected values of the stove water received, with control the dosing pump 9 and it is described plus Medicine switch valve 6 interlocks, it is ensured that the pH value of the drum 2 is in preset threshold range.
As shown in Fig. 2, in the present embodiment, more specifically, the controller 18 is configured to:
When judging that the pH detected values of the stove water received are higher than the upper limit, first control cabinet 12 is controlled to make described add Teat pipette 9 stops, and closes the dosing switch valve 6;Or
When judging that the pH detected values of the stove water received are less than lower limit, the dosing switch valve 6 is controlled to open, and control Making first control cabinet 12 starts the dosing pump 9.
As shown in Fig. 2, in the present embodiment, the detection device 21 further includes fluid level transmitter (referring to Fig. 1), is installed on institute It states at dosing tank 10, for detecting the liquid level condition of the dosing tank 10.The medicine system 19 further includes dosing blow valve 7, It is installed at the dosing tank 10, for discharging the phosphate solution in the dosing tank 10.Wherein, the controller 18 is configured Into according to the liquid level condition of the dosing tank 10 received, the dosing blow valve 7 and the medicine system 19 is controlled to work.
As shown in Fig. 2, more specifically, in the present embodiment, the controller 18 is configured to:
When judging that the liquid level of dosing tank 10 received is higher than the upper limit, the dosing blow valve 7 is controlled to open;
When judging that the liquid level of dosing tank 10 received is less than the upper limit, the dosing blow valve 7 is controlled to close;Or
When judging that the liquid level of dosing tank 10 received is less than lower limit, first control cabinet 12 is controlled to make the dosing pump 9 stop, and the dosing switch valve 6 is controlled to close.
As shown in Fig. 2, in the present embodiment, the detection device 21 further includes phosphate analytical instrument 17 (referring to Fig. 1), installation Between the feed-regulating valve 3 and the circulating pump 4, for detecting the phosphoric acid root for the stove water that the drum 2 is discharged.It is described Drainage 20 includes (referring to Fig. 1):Sewage discharging regulation valve 5, periodical blowdown expander 8 and blowdown cooling bay 11.Sewage discharging regulation valve 5 It is connected by pipeline with the drum 2, for discharging the stove water in the drum 2.Periodical blowdown expander 8 passes through pipeline and institute It states sewage discharging regulation valve 5 to be connected, for the stove water in the drum 2 to be separated into indirect steam and spent hot water.Blowdown cooling bay 11 It is connected by pipeline with the periodical blowdown expander 8, for collecting the spent hot water after cooling down.Wherein, the controller 18 It according to the phosphoric acid root of the stove water received, is analyzed and determined, the sewage discharging regulation valve 5 to be controlled to act, it is ensured that in time Discharge the spent hot water.The course of work of drainage 20 is that the stove water in drum 2 is sent by sewage discharging regulation valve 5 to regular row Dirty expander 8 is separated into indirect steam and spent hot water wherein, and indirect steam is drawn by special pipeline, is sent after spent hot water's cooling To blowdown cooling bay 11.
As shown in Fig. 2, more specifically, in the present embodiment, the controller 18 is configured to:
Judge that the phosphoric acid root of the stove water received higher than the upper limit, controls the sewage discharging regulation valve 5 to open;
Judge that the phosphoric acid root of the stove water received less than the upper limit and higher than lower limit, controls the sewage discharging regulation valve 5 close;Or
Judge that the phosphoric acid root of the stove water received less than lower limit, opens the medicine system 19, that is, opens dosing Switch valve 6, and start dosing pump 9.
As shown in Fig. 2, in the present embodiment, the controller 18 includes:Receiving module 181, interlocking monitoring module 182 and control Molding block 183.Receiving module 181 is used to receive the data that the detection device 21 detects.In the present embodiment, detection device 21 is wrapped Include pH meter 15, dosing tank fluid level transmitter 14, temperature element 16 and phosphate analytical instrument 17.The data of detection include the pH of stove water Detected value, dosing tank liquid level, the phosphoric acid root of stove coolant-temperature gage and stove water.Interlocking monitoring module 182 is used to analyze the reception mould Real time data in block 181 simultaneously proposes interlocked control.Wherein, interlocked control refers to the interlocking between dosing pump 9 and dosing switch valve 6 Control.When so-called interlocked control refers to that dosing switch valve 6 is opened, dosing pump 9 starts;When dosing pump 9 is closed, dosing switch valve 6 It closes.Control module 183 is used to control the medicine system 19 and the drainage 20.In the present embodiment, control module 183 For control of sewage disposal regulating valve 5, dosing switch valve 6, the first control cabinet 12,7 and second control cabinet 13 of dosing blow valve.
As shown in Fig. 2, further, in the present embodiment, the detection device 21 further includes temperature element 16, is installed on institute It states between feed-regulating valve 3 and the circulating pump 4, for detecting the stove coolant-temperature gage of the discharge of the drum 2.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe Structure, material or feature are contained at least one embodiment of the present invention or example.In the present specification, to above-mentioned term Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description Point can in an appropriate manner combine in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that:Not In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this The range of invention is limited by claim and its equivalent.

Claims (9)

1. a kind of waste heat boiler dosing blowdown control system, is arranged at waste heat boiler, the waste heat boiler includes connecting through pipeline Drum, feed-regulating valve and the circulating pump connect, which is characterized in that the system comprises:
Medicine system, for into the drum dosing to clear up incrustation scale therein;
Drainage, for periodically exhausting the stove water in the drum;
Detection device, for detecting the data of the stove water of the drum discharge;With
Controller for receiving the data of the detection device detection, and analyzes the data, control is sent out according to analysis result Signal, the medicine system and the drainage to be controlled to work automatically.
2. system according to claim 1, which is characterized in that the detection device is counted including PH, mounted on the feedwater Between regulating valve and the circulating pump, to detect the pH value of the stove water of the drum discharge;
The medicine system includes:
Dosing tank is used to form and houses phosphate radical salting liquid;
Dosing pump is connected with the dosing tank, for the phosphate solution in the dosing tank to be pumped into the drum;
Dosing switch valve, between the dosing pump and the drum, the phosphate solution to be controlled to enter the vapour Packet;
First control cabinet is connected with the controller and the dosing pump, with the control signal control sent out according to the controller Make the dosing pump work;With
Second control cabinet is connected with the controller and the dosing tank, with the control signal control sent out according to the controller Make the dosing tank work;
Wherein, the controller is analyzed and determined, according to the pH detected values of the stove water received to control the dosing Pump and dosing switch valve interlocking, it is ensured that the pH value of the drum is in preset threshold range.
3. system according to claim 2, which is characterized in that the controller is configured to:
When judging that the pH detected values of the stove water received are higher than the upper limit, first control cabinet is controlled to stop the dosing pump Only, and the dosing switch valve is closed;Or
When judging that the pH detected values of the stove water received are less than lower limit, the dosing switch valve is controlled to open, and control institute Stating the first control cabinet makes the dosing pump startup.
4. system according to claim 2, which is characterized in that the detection device further includes fluid level transmitter, is installed on At the dosing tank, for detecting the liquid level condition of the dosing tank;
The medicine system further includes dosing blow valve, is installed at the dosing tank, for discharging the phosphorus in the dosing tank Acid salt solution;
Wherein, the controller is configured to, according to the liquid level condition of the dosing tank received, control the dosing blow valve And the medicine system work.
5. system according to claim 4, which is characterized in that the controller is configured to:
When judging that the liquid level of dosing tank received is higher than the upper limit, the dosing blow valve is controlled to open;
When judging that the liquid level of dosing tank received is less than the upper limit, the dosing blow valve is controlled to close;Or
When judging that the liquid level of dosing tank received is less than lower limit, first control cabinet is controlled to stop the dosing pump, control The dosing switch valve is made to close.
6. system according to claim 1, which is characterized in that the detection device further includes phosphate analytical instrument, installation Between the feed-regulating valve and the circulating pump, for detecting the phosphoric acid root of the stove water of the drum discharge;
The drainage includes:
Sewage discharging regulation valve is connected by pipeline with the drum, for discharging the stove water in the drum;
Periodical blowdown expander is connected by pipeline with the sewage discharging regulation valve, for the stove water in the drum to be separated into Indirect steam and spent hot water;With
Blowdown cooling bay is connected by pipeline with the periodical blowdown expander, for collecting the spent hot water after cooling down;
Wherein, the controller is analyzed and determined, according to the phosphoric acid root of the stove water received to control the blowdown Adjust valve events, it is ensured that discharge the spent hot water in time.
7. system according to claim 6, which is characterized in that the controller is configured to:
When judging that the phosphoric acid root of the stove water received is higher than the upper limit, the sewage discharging regulation valve is controlled to open;
When judging the phosphoric acid root of the stove water received less than the upper limit and being higher than lower limit, the sewage discharging regulation valve is controlled to close It closes;Or
When judging that the phosphoric acid root of the stove water received is less than lower limit, the medicine system is opened.
8. according to the system described in claim any one of 1-7, which is characterized in that the controller includes:
Receiving module, for receiving the data of the detection device detection;
Monitoring module is interlocked, for analyzing the real time data in the receiving module and proposing interlocked control;With
Control module, for controlling the medicine system and the drainage.
9. system according to claim 1, which is characterized in that the detection device further includes temperature element, is installed on institute It states between feed-regulating valve and the circulating pump, for detecting the stove coolant-temperature gage of the discharge of the drum.
CN201810015674.7A 2018-01-08 2018-01-08 Waste heat boiler dosing blowdown control system Pending CN108150997A (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN109539227A (en) * 2018-10-31 2019-03-29 山西钢科碳材料有限公司 A kind of method that boiler system reduces blowdown rate
CN111439820A (en) * 2019-01-17 2020-07-24 新奥数能科技有限公司 Boiler water pH value adjusting method and adjusting system

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Publication number Priority date Publication date Assignee Title
CN2937832Y (en) * 2006-08-16 2007-08-22 辽宁省锅炉技术研究所 On-line water quantity automatic monitoring and blow-down system of steam boiler
CN201363712Y (en) * 2009-03-11 2009-12-16 中冶京诚工程技术有限公司 Medicine adding system of boiler
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CN204420968U (en) * 2014-12-30 2015-06-24 山东省药用玻璃股份有限公司 Coal-fired steam boiler stove water ph value automatic analysis and automatic sewage discharging device
CN104678878A (en) * 2015-02-09 2015-06-03 江苏凯弘新能源管理有限公司 Automatic control system for water quality of industrial boiler
CN207796997U (en) * 2018-01-08 2018-08-31 中国恩菲工程技术有限公司 Waste heat boiler dosing blowdown control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109539227A (en) * 2018-10-31 2019-03-29 山西钢科碳材料有限公司 A kind of method that boiler system reduces blowdown rate
CN111439820A (en) * 2019-01-17 2020-07-24 新奥数能科技有限公司 Boiler water pH value adjusting method and adjusting system

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