CN205990450U - A kind of device reclaiming heat in high temperature moist chlorine - Google Patents
A kind of device reclaiming heat in high temperature moist chlorine Download PDFInfo
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- CN205990450U CN205990450U CN201620957944.2U CN201620957944U CN205990450U CN 205990450 U CN205990450 U CN 205990450U CN 201620957944 U CN201620957944 U CN 201620957944U CN 205990450 U CN205990450 U CN 205990450U
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- heat exchanger
- liquid separator
- high temperature
- plate type
- chelate resin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model discloses a kind of device reclaiming heat in high temperature moist chlorine, this device passes through tubular heat exchanger, the combination of plate type heat exchanger, process characteristic in conjunction with production of caustic soda, heat in high temperature moist chlorine after being electrolysed using certain Self-control interlock system is fully recycled, save the consumption of recirculated water and the consumption of outer net saturated vapor, substantially reduce the operation unit consumption of unit product, improve the economy of device and the market competitiveness of enterprise.
Description
Technical field
This utility model belongs to chemical technology field, be related to diaphragm process or ionic membrane method alkali-chloride production equipment and in particular to
A kind of device reclaiming heat in high temperature moist chlorine.
Background technology
Chlorine industry is with electricity and crude salt as raw material, produces Caustic soda, chlorine and hydrogen using diaphragm process or ionic membrane method
Industry.China's chlorine industry production capacity fast lifting in recent years, presents the feature of scale, but the step of device technique levels
Cut down the swift and violent expansion lagging behind production capacity.If anode and cathode liquid is during electrolytic tank electrolysis, the heat in high temperature moist chlorine does not give
Reclaim, when entering subsequent processing, a large amount of circulating waters need to be leaned on so that the circulation water yield is huge, machine to reasonable temperature
Pump operation power consumption is high；The loss of heat simultaneously leads to system external net saturated vapor dependency degree big, and anolyte is before entering electrolysis bath
A large amount of saturated vapor heating need to be leaned on, this fractional saturation steam accounts for the significant proportion of outer net saturated vapor consumption.Ultimately result in product
Unit cost remains high, and Business Economic Benefit is depressed.
Utility model content
This utility model be directed to that highly energy-consuming chlorine industry electrolysis high temperature moist chlorine thermal capacitance is high, heat is big and steady sources but not
A kind of present situation being used, there is provided the device and method of heat in recovery high temperature moist chlorine.
This utility model is realized by following technology：A kind of device reclaiming heat in high temperature moist chlorine, including electricity
Solution groove, negative electrode gas-liquid separator, anode gas-liquid separator, tubular heat exchanger, plate type heat exchanger and chelate resin tower；Electrolysis bath
It is connected by pipeline with negative electrode gas-liquid separator, anode gas-liquid separator respectively, anode gas-liquid separator gas phase pipeline and tubulation
The tube-side inlet of formula heat exchanger connects, and the shell side inlet of tubular heat exchanger is connected with anolyte conveyance conduit, shell and tube heat exchange
The shell-side outlet of device is connected with plate type heat exchanger cold side input port by heat exchanger intermediate valve, and the shell side of tubular heat exchanger goes out simultaneously
Mouthful increase bypass, be connected with chelate resin tower entrance by recuperator bypass valve, plate type heat exchanger cold side outlet port and chelating resin
Tower entrance connects, and plate type heat exchanger hot side entrance is connected with the outer net saturated vapor pipeline being provided with steam inlet valve, plate-type heat-exchange
Device hot side outlet is connected with steam condensate recovery channel in system, and chelate resin tower porch arranges electronic temperature controller and steaming
Vapour inlet valve is interlocked, and chelate resin tower outlet is connected with electrolysis bath entrance.
Further, the tubular heat exchanger that described tubular heat exchanger is made from strong titanium TA2 of corrosion resistance.
Further, described tubular heat exchanger is U-tube shell heat exchanger.
A kind of method that employing said apparatus reclaim heat in high temperature moist chlorine, specifically includes following steps,
A, system are driven the initial stage, and material B flows through tubular heat exchanger, now no thermal source in tubular heat exchanger；Anolyte
Plate type heat exchanger is entered by heat exchanger intermediate valve, material B is heated to 55 by the outer net steam relying only on the offer of steam inlet valve
DEG C～60 DEG C of entrance chelate resin towers, enter chelate resin tower temperature and steam inlet valve interlocked control；
B, material B deliver in electrolysis bath after removing the divalent heavy metal ions such as calcium, magnesium in chelate resin tower, with simultaneously plus
There is electrolysis cell reaction in the material A entering electrolysis bath, the cathode product that electrolytic tank electrolysis produce enters negative electrode gas-liquid separator；Sun
Pole product enters anode gas-liquid separator, and the gaseous phase materials F that anode gas-liquid separator separates go out provides and stablizes heat, and material F enters
Enter the tube side of tubular heat exchanger, carry out heat exchange with the material B entering tubular heat exchanger shell side, material B is heated to
Uniform temperature；When system is run at low load, the material B flow of system consumption is less, only need to open board-like recuperator bypass
Valve, the heat of tubular heat exchanger is temperature required enough to the material B of necessary flow is heated to technique；System is under higher load
During operation, the shortage of heat of tubular heat exchanger is temperature required so that the material B of big flow is heated to technique, now by material B
Heating is assisted by plate type heat exchanger flow process, system realizes temperature according to material B temperature interlocking automatic switch steam inlet valve
Stablize precise control.
Further, in above-mentioned electrolysis bath by material A and material B electrolytically generated Caustic soda, chlorine in the presence of unidirectional current
With hydrogen chemical products.
Further, the product being electrolysed out is carried out preliminary air-liquid separation by described cathode and anode gas-liquid separator.
Further, the electrolysis liquid product of negative electrode gas-liquid separator is material C, and electrolysis gas-phase product is material E, material
C delivers to postorder storage at lower temperature as product caustic soda, and material E delivers to downstream hydrogen treatment process；The electrolyte of anode gas-liquid separator
Phase product is material D and electrolysis gas-phase product is described material F, and then the dechlorinated rear primary brine that returns reuses material D,
Material F delivers to chlorine treatment operation after heat recovery.
Further, the hot side of described tubular heat exchanger is high temperature moist chlorine, and the cold side of tubular heat exchanger is material
B, material F walk tube side, and material B walks shell side.
Further, described chelate resin tower porch arranges electronic temperature controller, and span of control is 55 DEG C～60 DEG C, enters
The temperature of chelate resin tower material B and the open degree interlocked control of steam inlet valve, this temperature value is set according to process conditions
In low report value L, high report value H and Gao Gao report value HH to DCS configuration program, and voice-control alarm is set guarantees into anode electrolytic cell liquid
Temperature.
The beneficial effects of the utility model are：This utility model passes through tubular heat exchanger, the combination of plate type heat exchanger,
In conjunction with the process characteristic of production of caustic soda, the heat in high temperature moist chlorine after being electrolysed using certain Self-control interlock system is filled
Divide and recycle, save the consumption of recirculated water and the consumption of outer net saturated vapor, substantially reduce the operation unit consumption of unit product.
Heat recovery rate up to more than 85%, simple to operate, energy-saving effect is obvious.
This utility model, at the initial stage of driving, relies on plate type heat exchanger outer net steam to be that anolyte is heated to suitable temperature and enters
Electrolysis bath, when out high temperature moist chlorine to be electrolysed can provide stable heat, can heat for anolyte in tubular heat exchanger,
Realize heat reuse, reduce follow-up steam consumption；This utility model passes through to arrange tubular heat exchanger, with the sun that system is to be heated
Pole liquid recycles this partial heat, and its heat utilization ratio, up to 85%, can reduce cold during high temperature moist chlorine entrance lower procedure
The consumption of required recirculated water；Outer net saturated vapor consumption can be reduced again, accomplished the abundant reuse of heat, effectively reduced product
The steam mono-consumption of product；Alleviate investment and the occupation of land of circulating water device simultaneously, save the operation power consumption of water circulating pump, high device
Economy and enterprise the market competitiveness.
Brief description
Fig. 1 is this utility model structural representation.
In figure：1- electrolysis bath；2- negative electrode gas-liquid separator；3- anode gas-liquid separator；4- tubular heat exchanger；5- is board-like
Heat exchanger；6- chelate resin tower；7- steam inlet valve；8- heat exchanger intermediate valve；9- recuperator bypass valve.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail：Material A-the catholyte of in figure；Material B-
Anolyte；Material C- finished product alkali liquor；Material D- light salt brine；Material E- wet hydrogen；Material F- moist chlorine.
As shown in figure 1, a kind of reclaim high temperature moist chlorine in heat device, including electrolysis bath 1, negative electrode gas-liquid separator 2,
Anode gas-liquid separator 3, tubular heat exchanger 4, plate type heat exchanger 5 and chelate resin tower 6；In the middle of steam inlet valve 7, heat exchanger
Valve 8, recuperator bypass valve 9；Electrolysis bath 1 is connected by pipeline with negative electrode gas-liquid separator 2, anode gas-liquid separator 3 respectively, sun
Pole gas-liquid separator 3 gas phase pipeline is connected with the tube-side inlet of tubular heat exchanger 4, the shell side inlet of tubular heat exchanger 4 with
Anolyte conveyance conduit connects, and the shell-side outlet of tubular heat exchanger 4 passes through heat exchanger intermediate valve 8 and plate type heat exchanger 5 cold side
Entrance connects, and the shell-side outlet of tubular heat exchanger 4 increases bypass simultaneously, is entered with chelate resin tower 6 by recuperator bypass valve 9
Mouthful connect, plate type heat exchanger 5 cold side outlet port is connected with chelate resin tower 6 entrance, plate type heat exchanger 5 hot side entrance be provided with steam
The outer net saturated vapor pipeline of inlet valve 7 connects, and plate type heat exchanger 5 hot side outlet is with steam condensate recovery channel in system even
Connect, chelate resin tower porch setting electronic temperature controller is interlocked with steam inlet valve 7, and chelate resin tower 6 exports and electrolysis bath 1
Entrance connects.The tubular heat exchanger that described tubular heat exchanger is made from strong titanium TA2 of corrosion resistance.Described shell and tube
Heat exchanger is U-tube shell heat exchanger.
A kind of method that employing said apparatus reclaim heat in high temperature moist chlorine, specifically includes following steps,
A, system are driven the initial stage, and anolyte flows through tubular heat exchanger 4, now no thermal source in tubular heat exchanger；Anode
Liquid enters plate type heat exchanger 5 by heat exchanger intermediate valve 8, rely only on the outer net steam of steam inlet valve 7 offer by anolyte plus
Heat, to 55 DEG C～60 DEG C entrance chelate resin towers 6, enters chelate resin tower temperature and steam inlet valve 7 interlocked control；
B, anolyte are delivered in electrolysis bath 1 after removing the divalent heavy metal ions such as calcium, magnesium in chelate resin tower 6, with
When the material A that adds there is electrolysis cell reaction, the cathode product that electrolysis bath 1 electrolysis produces enters negative electrode gas-liquid separator 2；Sun
Pole product enters anode gas-liquid separator 3, and the gas phase high temperature moist chlorine that anode gas-liquid separator 3 is isolated can provide stable heat
Amount, the hot side of tubular heat exchanger is high temperature moist chlorine, and the cold side of tubular heat exchanger is anolyte, anode gas-liquid separator 3
The gas phase high temperature moist chlorine isolated walks the tube side of tubular heat exchanger 4, and anolyte is walked the shell side of pipe heat exchanger 4, walked tube side
High temperature moist chlorine carry out heat exchange with the anolyte walking shell side, anolyte is heated to uniform temperature, realizes heat reuse；
When system is run at low load, the anode flow quantity of system consumption is less, only need to open board-like recuperator bypass valve 9, tubulation
The heat of formula heat exchanger 4 is temperature required enough to the anolyte of necessary flow is heated to technique；System is run under higher load
When, technique is temperature required to be heated to the anolyte of big flow for the shortage of heat of tubular heat exchanger, and now anolyte passes through
Valve transfer assists heating to plate type heat exchanger 5 flow process, and system interlocks automatic switch steam inlet valve 7 in fact according to anode temperature
The stable precise control of existing temperature.
Described tubular heat exchanger is to avoid thermal loss, outside need isothermal holding.By catholyte in above-mentioned electrolysis bath 1
With anolyte in the presence of unidirectional current electrolytically generated Caustic soda, chlorine and hydrogen chemical products.Cathode and anode gas-liquid separator is by electricity
Solution product out carries out preliminary air-liquid and separates.
Described chelate resin tower porch arranges electronic temperature controller, enters the temperature of chelate resin tower anolyte and steam supplies
The open degree interlocked control of material valve, this temperature value is set low report value L, high report value H and Gao Gao report value HH extremely according to process conditions
In DCS configuration program, and voice-control alarm is set guarantees the temperature into anode electrolytic cell liquid.
Embodiment 1
A kind of for this utility model device reclaiming heat in high temperature moist chlorine is applied to certain 200kt/a ion-exchange membrane caustic soda
Production system；Specifically include following steps：Drive the initial stage in this system, open heat exchanger intermediate valve 8, close recuperator bypass valve
9, material B pass through tubular heat exchanger 4 and heat exchanger intermediate valve 8 enters plate type heat exchanger 5, the saturated vapor being provided using outer net
By anolyte heat 60 DEG C after enter chelate resin tower 6, material B remove in chelate resin tower 6 the bivalence heavy metal such as calcium, magnesium from
Deliver in electrolysis bath 1 after son, with the material A being simultaneously introduced, electrolysis cell reaction, the cathode product that electrolysis bath 1 electrolysis produces occur
Enter negative electrode gas-liquid separator 2；Anodic product enters anode gas-liquid separator 3.The gas gas-phase objects that anode gas-liquid separator 3 is isolated
Material F can provide stable heat, and material F enters the tube side of tubular heat exchanger 4, with the material B entering tubular heat exchanger 4 shell side
Carry out heat exchange, when system is run at low load, the material B flow of system consumption is less, the heat of tubular heat exchanger
Temperature required enough to the material B of necessary flow is heated to technique, therefore only need to open board-like recuperator bypass valve 9, close heat exchange
Device intermediate valve 8；When system is run under higher load, the shortage of heat of tubular heat exchanger is to heat the material B of big flow
Temperature required to technique, now close recuperator bypass valve 9, open heat exchanger intermediate valve 8, material B is passed through plate type heat exchanger 5
Secondary auxiliary is heated to 60 DEG C, and system realizes the stable reasonable of temperature according to material B temperature interlocking automatic switch steam inlet valve 7
Control.Material C and material D is electrolysis liquid product, and material C delivers to postorder storage at lower temperature as product caustic soda, and material D is then dechlorinated
Return primary brine afterwards to reuse；Material E and material F is electrolysis gas-phase product, and material E delivers to downstream hydrogen treatment process,
Material F delivers to chlorine treatment operation after heat recovery.After said method, monthly about 90 tons of steam saving consumption, heat
Organic efficiency is up to 87%；Save circulation water consumption 5231m the moon3.
Embodiment 2
A kind of for this utility model device reclaiming heat in high temperature moist chlorine is applied to certain diaphragm membrane caustic soda system；
Specifically include following steps：Drive the initial stage in this system, open heat exchanger intermediate valve 8, close recuperator bypass valve 9, material B leads to
Cross tubular heat exchanger 4 and heat exchanger intermediate valve 8 and enter plate type heat exchanger 5, the saturated vapor being provided using outer net is by anolyte
After 65 DEG C of heating, enter chelate resin tower 6, material B send after removing the divalent heavy metal ions such as calcium, magnesium in chelate resin tower 6
To electrolysis bath 1, there is electrolysis cell reaction with the material A being simultaneously introduced, the cathode product that electrolysis bath 1 electrolysis produces enters cloudy
Pole gas-liquid separator 2；Anodic product enters anode gas-liquid separator 3.The gaseous phase materials F that anode gas-liquid separator 3 is isolated can
There is provided and stablize heat, material F enters the tube side of tubular heat exchanger 4, carry out heat exchange with the material B entering shell side.System
When running at low load, the material B flow of system consumption is less, and the heat of tubular heat exchanger be enough to the thing of necessary flow
It is temperature required that material B is heated to technique, therefore only need to open board-like recuperator bypass valve 9, closes heat exchanger intermediate valve 8；System is relatively
When running under high load capacity, the shortage of heat of tubular heat exchanger is temperature required so that the material B of big flow is heated to technique, now
Close recuperator bypass valve 9, open heat exchanger intermediate valve 8, material B is heated to 65 DEG C by 5 two auxiliary of plate type heat exchanger,
System is realized the stable of temperature according to anode temperature interlocking automatic switch steam inlet valve and is rationally controlled.Material C and material D is
Electrolysis liquid product, material C delivers to postorder storage at lower temperature as product caustic soda, and material D is then dechlorinated to return primary brine again afterwards
Using；Material E and material F is electrolysis gas-phase product, and material E delivers to downstream hydrogen treatment process, and material F send after heat recovery
To chlorine treatment operation.After said method, monthly about 43 tons of steam saving consumption, heat recovery efficiency is up to 85%；The moon saves
About circulate water consumption 2793m3.
Claims (3)
1. a kind of reclaim high temperature moist chlorine in heat device it is characterised in that:Including electrolysis bath（1）, negative electrode gas-liquid separator
（2）, anode gas-liquid separator（3）, tubular heat exchanger（4）, plate type heat exchanger（5）And chelate resin tower（6）；Electrolysis bath（1）
Respectively with negative electrode gas-liquid separator（2）, anode gas-liquid separator（3）Connected by pipeline, anode gas-liquid separator（3）Gas phase pipe
Road and tubular heat exchanger（4）Tube-side inlet connect, tubular heat exchanger（4）Shell side inlet and anolyte conveyance conduit even
Connect, tubular heat exchanger（4）Shell-side outlet pass through heat exchanger intermediate valve（8）With plate type heat exchanger（5）Cold side input port connects, with
When tubular heat exchanger（4）Shell-side outlet increase bypass, by recuperator bypass valve（9）With chelate resin tower（6）Entrance is even
Connect, plate type heat exchanger（5）Cold side outlet port and chelate resin tower（6）Entrance connects, plate type heat exchanger（5）Hot side entrance be provided with steaming
Vapour inlet valve（7）Outer net saturated vapor pipeline connect, plate type heat exchanger（5）Hot side outlet is reclaimed with steam condensate in system
Pipeline connects, and chelate resin tower porch arranges electronic temperature controller and steam inlet valve（7）Interlocking, chelate resin tower（6）Go out
Mouth and electrolysis bath（1）Entrance connects.
2. as claimed in claim 1 a kind of reclaim high temperature moist chlorine in heat device it is characterised in that:Described shell and tube changes
Hot device（4）The tubular heat exchanger made from strong titanium TA2 of corrosion resistance.
3. as claimed in claim 1 a kind of reclaim high temperature moist chlorine in heat device it is characterised in that:Described shell and tube changes
Hot device（4）For U-tube shell heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620957944.2U CN205990450U (en) | 2016-08-29 | 2016-08-29 | A kind of device reclaiming heat in high temperature moist chlorine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620957944.2U CN205990450U (en) | 2016-08-29 | 2016-08-29 | A kind of device reclaiming heat in high temperature moist chlorine |
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| CN205990450U true CN205990450U (en) | 2017-03-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367778A (en) * | 2016-08-29 | 2017-02-01 | 金川集团股份有限公司 | Device and method for recycling heat in high-temperature humid chlorine |
| CN107201531A (en) * | 2017-04-27 | 2017-09-26 | 新疆中泰化学阜康能源有限公司 | Highly acid light salt brine reclamation set after chlorate decomposer is decomposed in electrolysis process |
| CN108245919A (en) * | 2017-10-10 | 2018-07-06 | 江苏兄弟维生素有限公司 | A kind of device for continuously recycling and recovery method of the dichloromethane containing chlorine |
| CN113932620A (en) * | 2021-10-26 | 2022-01-14 | 山东钢铁集团日照有限公司 | Device and method for utilizing flue gas waste heat of sintering circular cooler |
-
2016
- 2016-08-29 CN CN201620957944.2U patent/CN205990450U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367778A (en) * | 2016-08-29 | 2017-02-01 | 金川集团股份有限公司 | Device and method for recycling heat in high-temperature humid chlorine |
| CN107201531A (en) * | 2017-04-27 | 2017-09-26 | 新疆中泰化学阜康能源有限公司 | Highly acid light salt brine reclamation set after chlorate decomposer is decomposed in electrolysis process |
| CN107201531B (en) * | 2017-04-27 | 2020-10-30 | 新疆中泰化学阜康能源有限公司 | Strong acid light salt water recycling device after chlorate decomposer decomposes in electrolysis process |
| CN108245919A (en) * | 2017-10-10 | 2018-07-06 | 江苏兄弟维生素有限公司 | A kind of device for continuously recycling and recovery method of the dichloromethane containing chlorine |
| CN113932620A (en) * | 2021-10-26 | 2022-01-14 | 山东钢铁集团日照有限公司 | Device and method for utilizing flue gas waste heat of sintering circular cooler |
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