CN107879362A - A kind of induction system for evaporation of chlorine-alkali - Google Patents
A kind of induction system for evaporation of chlorine-alkali Download PDFInfo
- Publication number
- CN107879362A CN107879362A CN201610871880.9A CN201610871880A CN107879362A CN 107879362 A CN107879362 A CN 107879362A CN 201610871880 A CN201610871880 A CN 201610871880A CN 107879362 A CN107879362 A CN 107879362A
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- CN
- China
- Prior art keywords
- alkali
- alkali lye
- liquid level
- valve
- level gauge
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/42—Concentration; Dehydration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention discloses a kind of induction system for evaporation of chlorine-alkali, including：Alkali lye medial launder, lye pump, master control valve, auxiliary valve, heat exchanger, finished pot, alkali lye surge tank, first liquid level gauge and control device；Wherein, first liquid level gauge is arranged in alkali lye surge tank；Control device is connected with master control valve, auxiliary valve, first liquid level gauge；Alkali lye medial launder is connected by main control valve door with alkali lye surge tank all the way by pipeline, lye pump, and another way is connected by auxiliary valve, heat exchanger with finished pot.Chain control of the invention by setting first liquid level gauge and Self controlling valve, so that electrowinning process high temperature alkaline solution can be fed directly to standby in evaporation and buffering tank, reduce evaporated vapor consumption, simultaneously, when evaporization process produce load adjusts, unnecessary high temperature alkaline solution can be adjusted by Self controlling valve, and finished product tank field is delivered to after cooling by heat exchanger, reduce corrosion of the alkali lye to pipeline.
Description
Technical field
The present invention relates to technical field of chlor-alkali industry, is specifically related to a kind of induction system for evaporation of chlorine-alkali.
Background technology
In the alkali evaporization process of chlorine industry 50%, it is necessary to from (temperature is about for 32% finished product high-temperature alkali caused by electrolysis
75 DEG C) it is transported to next step evaporization process and is made 50% alkali, the following two methods of conveying generally use of traditional evaporation alkali：
(1) 32% high-temperature alkali is delivered into tank field after heat exchanger is cooled to 35~40 DEG C, then evaporation alkali lye is pumped to by tank field alkali lye and delayed
Rush standby in tank；(2) 32% high-temperature alkali is directly sent without product caustic soda heat exchanger 02 standby in evaporization process alkali lye surge tank.
Above two method can have problems with respectively：Evaporation is sent to cause steam in evaporization process after the cooling of (1) 32% high-temperature alkali
Consumption increase；(2) directly conveyed if do not reduced by 32% alkali temperature, when vapo(u)rization system produces failure, high-temperature alkali send finished product
Tank field will be to sending alkali pipeline to produce corrosion；(3) both approaches easily cause to fluctuate to evaporation and electrowinning process produce load,
Prevent vapo(u)rization system from held stationary running status.
The content of the invention
In order to solve problem above, the present invention provides following technical scheme：
A kind of induction system for evaporation of chlorine-alkali, including：Alkali lye medial launder, lye pump, master control valve, auxiliary valve,
Heat exchanger, finished pot, alkali lye surge tank, first liquid level gauge and control device；Wherein, the first liquid level gauge is arranged on the alkali
In liquid surge tank；
The control device is connected with master control valve, auxiliary valve, first liquid level gauge, for main control valve described in Staged cotrol
Door and the auxiliary valve, and the master control valve is opposite with auxiliary valve effect；
The alkali lye medial launder is connected by main control valve door with the alkali lye surge tank all the way by pipeline, lye pump, separately
Connected all the way by auxiliary valve, heat exchanger with the finished pot.
Further, second liquid level gauge is provided with the alkali lye medial launder, the second liquid level gauge fills with the control
Put connection.
Further, the master control valve and the auxiliary valve are regulating valve.
Beneficial effects of the present invention：The invention is by setting the chain control of first liquid level gauge and Self controlling valve so that will
Electrowinning process high temperature alkaline solution can be fed directly to standby in evaporation and buffering tank, reduce evaporated vapor consumption, meanwhile, work as evaporator man
When sequence produce load adjusts, unnecessary high temperature alkaline solution can be adjusted by Self controlling valve, and finished product tank field is delivered to after cooling by heat exchanger,
Corrosion of the alkali lye to pipeline is reduced, ensures evaporization process production system even running.
Brief description of the drawings
Fig. 1 is a kind of structural representation of induction system for evaporation of chlorine-alkali provided by the invention.
Embodiment
With reference to embodiment, the present invention will be further described, but the present invention is not limited to following examples.
Reference picture 1, the invention provides a kind of induction system for evaporation of chlorine-alkali, including：Control device (does not show in figure
Go out), alkali lye medial launder 01, heat exchanger 02, finished pot 03, alkali lye surge tank 04, first liquid level gauge 05, lye pump 06, electrolytic alkali
Liquid pump 07, second liquid level gauge (not shown), master control valve T1, auxiliary valve T2；Caused high temperature alkaline solution in electrowinning process
It is delivered to by electrolytic alkali liquid pump 07 in alkali lye medial launder 01, the alkali lye medial launder 01 passes through pipeline, the a-road-through of lye pump 06
Cross master control valve T1 to connect with the alkali lye surge tank 04, for the high temperature alkaline solution in alkali lye medial launder 01 directly to be transported into alkali
In liquid surge tank 04, another way is connected by auxiliary valve T2, heat exchanger 02 with the finished pot 03, for being sent out when vapo(u)rization system
The high temperature alkaline solution in alkali lye medial launder 01 is delivered to after cooling in finished pot 03 during raw failure；Wherein, the master control valve
The T1 and auxiliary valve T2 is regulating valve, and return line 08 is additionally provided between lye pump 06 and the alkali lye medial launder, is used
In the pressure that balance lye pump 06 exports.
The first liquid level gauge 05 is arranged in the alkali lye surge tank 04, the first liquid level gauge 05, master control valve T1, auxiliary
Valve T2 is helped to be connected with control device, for master control valve T1 described in Staged cotrol and the auxiliary valve T2, and the master control
Valve T1 is opposite with the auxiliary valve T2 effects；When the first liquid level gauge 05 detects that the liquid in alkali lye surge tank 04 surpasses
When crossing setting value, the control device turns master control valve down automatically according to the output signal of the first liquid level gauge 05 received
T1, while auxiliary valve T2 is tuned up, unnecessary high temperature alkaline solution is delivered in finished pot 03 after the cooling of alkali lye heat exchanger 02.
The second liquid level gauge is arranged in alkali lye medial launder 01, and the second liquid level gauge is connected with the control device；
When the liquid that the second liquid level gauge is detected in alkali lye medial launder 01 exceedes setting value, the control device is according to receiving
The output signal of the second liquid level gauge, auxiliary valve T2 is fully open, liquid of the master control valve T1 in alkali lye surge tank 04
Position flow automatic regulation.
A kind of method using the progress alkali lye conveying of above-mentioned induction system is as follows：
When evaporization process normally produces, i.e., when described alkali lye medial launder, alkali lye surge tank liquid level are less than setting value, open
Master control valve T1, auxiliary valve T2 is closed, the alkali lye in alkali lye medial launder 01 is transported to alkali lye surge tank by master control valve T1
In it is standby, for next step evaporization process；When vapo(u)rization system produces failure, and produce load reduces, the liquid level of alkali lye surge tank 04
It will raise, and now turn master control valve T1 down, and open auxiliary valve, sent after unnecessary high temperature alkaline solution is cooled by alkali lye heat exchanger 02
The area of finished pot 03, it effectively prevent and corrosion is produced to the alkali lye pipeline for sending the area of finished pot 03.Or among electrowinning process alkali lye
The liquid level of groove 01 is too high when exceeding setting value, opens auxiliary valve T2, while automatically adjust master according to the liquid level of alkali lye surge tank 04
Valve T1 is controlled, therefore ensure that electrolysis system normally produces.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help the device and its core concept that understand the present invention；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, there will be changes in specific embodiments and applications, in summary, this specification content is not
It is interpreted as limitation of the present invention.
Claims (3)
1. a kind of induction system for evaporation of chlorine-alkali, including：Alkali lye medial launder, lye pump, master control valve, auxiliary valve, change
Hot device, finished pot, alkali lye surge tank, first liquid level gauge and control device；Wherein, the first liquid level gauge is arranged on the alkali lye
In surge tank；
The control device is connected with master control valve, auxiliary valve, first liquid level gauge, for master control valve described in Staged cotrol and
The auxiliary valve, and the master control valve is opposite with auxiliary valve effect；
The alkali lye medial launder is connected by main control valve door with the alkali lye surge tank all the way by pipeline, lye pump, another way
Connected by auxiliary valve, heat exchanger with the finished pot.
2. it is used for the induction system of evaporation of chlorine-alkali as claimed in claim 1, wherein, it is provided with second in the alkali lye medial launder
Liquid level gauge, the second liquid level gauge are connected with the control device.
3. it is used for the induction system of evaporation of chlorine-alkali as claimed in claim 1, wherein, the master control valve and the auxiliary valve
For regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871880.9A CN107879362A (en) | 2016-09-29 | 2016-09-29 | A kind of induction system for evaporation of chlorine-alkali |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871880.9A CN107879362A (en) | 2016-09-29 | 2016-09-29 | A kind of induction system for evaporation of chlorine-alkali |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107879362A true CN107879362A (en) | 2018-04-06 |
Family
ID=61769145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610871880.9A Pending CN107879362A (en) | 2016-09-29 | 2016-09-29 | A kind of induction system for evaporation of chlorine-alkali |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107879362A (en) |
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2016
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| CN201107668Y (en) * | 2007-09-21 | 2008-08-27 | 浙江大学 | Mercerization aqueous alkali automatic preparing instrument |
| CN201581083U (en) * | 2009-10-13 | 2010-09-15 | 南宁苏格尔科技有限公司 | Liquid level adjustable type sugar juice single-layer settling system |
| CN102061353A (en) * | 2010-11-16 | 2011-05-18 | 天津钢管集团股份有限公司 | Method for optimizing runtime value of steel-making closed-loop circulating water buffer tank |
| CN202453744U (en) * | 2012-01-09 | 2012-09-26 | 文安县天澜新能源有限公司 | Liquid unloading linkage device |
| CN202674833U (en) * | 2012-05-31 | 2013-01-16 | 莱芜钢铁集团有限公司 | Low-temperature liquid evaporating and transporting device |
| CN103537104A (en) * | 2013-10-25 | 2014-01-29 | 昆山市盛兴设备安装有限公司 | Fructose-glucose syrup evaporating system |
| CN203686582U (en) * | 2013-12-27 | 2014-07-02 | 安徽淮化股份有限公司 | Conveying device for preparing hydrogenation working section dimethyl oxalate in glycol with synthesis gas |
| CN204005254U (en) * | 2014-07-03 | 2014-12-10 | 佛山市南海绿电再生能源有限公司 | A kind of novel lime slurry pipe controller |
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