CN206624926U - A kind of production of caustic soda waste heat utilization device - Google Patents
A kind of production of caustic soda waste heat utilization device Download PDFInfo
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- CN206624926U CN206624926U CN201720392452.8U CN201720392452U CN206624926U CN 206624926 U CN206624926 U CN 206624926U CN 201720392452 U CN201720392452 U CN 201720392452U CN 206624926 U CN206624926 U CN 206624926U
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- caustic soda
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model belongs to chemical industry alkali making technology field, more particularly to a kind of production of caustic soda waste heat utilization device, including ion-exchange membrane electrolyzer, alkali liquid high-level groove, circulation alkali heat exchanger, circulation alkali pump, catholyte storage tank, caustic product pump, product caustic soda cooler and product caustic soda heat exchanger；The cathode chamber of ion-exchange membrane electrolyzer is provided with lye export and alkali liquor inlet, and lye export is connected with catholyte storage tank, the outlet connection of alkali liquor inlet and alkali liquid high-level groove；Catholyte storage tank is provided with two liquid outlets, import of one of liquid outlet successively through circulation alkali pump, the circulation alkali heat exchanger and alkali liquid high-level groove that can be passed through steam connects, another liquid outlet is sequentially connected finished product alkali pump, product caustic soda heat exchanger and the product caustic soda cooler provided with recirculated water, heat exchange is carried out in product caustic soda heat exchanger and the pure water being passed through by the alkali lye of caustic product pump pumping, the pure water after heating enters circulation alkali heat exchanger and entered after steam heats in alkali liquid high-level groove.
Description
Technical field
The utility model belongs to chemical industry alkali making technology field, and in particular to a kind of production of caustic soda waste heat utilization device.
Background technology
In ion film caustic soda production process, salt solution carries out cell reaction in ion-exchange membrane electrolyzer, in electric tank cathode
High temperature caustic soda is generated in room, because high temperature caustic soda is stronger to stainless steel pipes and Corrosion of Tanks, it is therefore desirable to by finished product high temperature
Tank field is sent into after caustic soda cooling, 87 DEG C or so of high temperature caustic soda is typically cooled to 40 DEG C or so using recirculated water, can so be disappeared
Substantial amounts of recirculated water is consumed, while wastes substantial amounts of heat.
As shown in figure 1, being the schematic diagram of the production of caustic soda waste heat utilization device of prior art, the device includes ionic membrane electricity
Solve groove 1, alkali liquid high-level groove 2, circulation alkali heat exchanger 3, circulation alkali pump 4, catholyte storage tank 5, caustic product pump 6 and product caustic soda cooler
7.Ion-exchange membrane electrolyzer 1 prepares the total pipeline that the high temperature caustic lye of soda generated collects in alkali lye, into catholyte storage tank 5, by circulating
The part alkali lye that alkali pump 4 is sent out adjusts the temperature of alkali lye after it with the addition of pure water by the steam heating at circulation alkali heat exchanger 3
Section then returnes to ion-exchange membrane electrolyzer 1 and recycled to 85~90 DEG C, another part alkali lye of catholyte storage tank 5 through into
The product caustic soda that 6,87 DEG C of product alkali pump is exchanged heat in product caustic soda cooler 7 with recirculated water, cools the temperature to 40 DEG C, after cooling
Product caustic soda delivers to product caustic soda tank field, carries out filling and sells.
The production of caustic soda waste heat utilization device of prior art needs to consume substantial amounts of recirculated water in alkaline, and also by
Outside steam is heated, and the heat of high-temperature alkali fails to utilize, and causes great energy dissipation.
In view of this, it is special to propose the application.
Utility model content
The purpose of this utility model is to provide a kind of production of caustic soda waste heat utilization device, the production of caustic soda Waste Heat Reuse
Device can fully utilize the heat formed in running, and can significantly reduce the dosage of recirculated water, the burning of acquisition
Alkali product purity is high, furthermore it is also possible to fully utilize the accessory substance in electrolytic process to obtain multiple product, improve energy and
The comprehensive utilization ratio of material, preserve our planet environment and raising enterprise income.
In order to reach described beneficial effect, solve described technical problem, the technical solution adopted in the utility model
Basic Design thinking is as follows：
A kind of production of caustic soda waste heat utilization device, including ion-exchange membrane electrolyzer, alkali liquid high-level groove, circulation alkali heat exchanger, follow
Ring alkali pump, catholyte storage tank, caustic product pump, product caustic soda cooler and product caustic soda heat exchanger；
The cathode chamber of ion-exchange membrane electrolyzer is provided with lye export and alkali liquor inlet, and lye export connects with catholyte storage tank
Connect, the outlet connection of alkali liquor inlet and alkali liquid high-level groove；
Catholyte storage tank is provided with two liquid outlets, and one of liquid outlet is successively through circulating alkali pump, can be passed through following for steam
Ring alkali heat exchanger and alkali liquid high-level groove import connection, another liquid outlet be sequentially connected finished product alkali pump, product caustic soda heat exchanger and
Product caustic soda cooler provided with recirculated water, carried out by the alkali lye of caustic product pump pumping in product caustic soda heat exchanger and the pure water being passed through
Heat exchange, the pure water after heating enter circulation alkali heat exchanger and entered after steam heats in alkali liquid high-level groove.
Preferably, catholyte storage tank alkali lye is delivered to successively by a pipeline of caustic product pump product caustic soda heat exchanger, into
Product alkali cooler simultaneously enters finished pot area.
Preferably, the bottom of product caustic soda cooler side is provided with recirculated water filling pipe end, and the top of opposite side is provided with recirculated water
Water return outlet.
Preferably, alkali liquid high-level groove is horizontal tank body, and the left and right ends of horizontal tank body are to seamlessly transit company with middle part
The arc-shaped structure connect, the outlet of alkali liquid high-level groove are located at horizontal tank base, close to middle part.
Preferably, catholyte storage tank is horizontal tank body, and the left and right ends of horizontal tank body are to seamlessly transit company with middle part
The arc-shaped structure connect, two liquid outlets of catholyte storage tank are respectively provided at horizontal tank body left and right ends, close to middle part
Bottom.
Preferably, the top of the cathode chamber of ion-exchange membrane electrolyzer is provided with hydrogen outlet, and the top of anode chamber is provided with chlorine
Gas exports and light salt brine outlet, and the downside of anode chamber is provided with feed brine entrance.
Preferably, the chlorine gas outlet of ion-exchange membrane electrolyzer is connected by conveyance conduit with Chlorine Scrubber, dry by washing
Downstream user is delivered to after dry compression.
Preferably, the hydrogen outlet of ion-exchange membrane electrolyzer is connected by conveyance conduit with flush of hydrogen gas tower, dry by washing
Downstream user is delivered to after dry compression.
Preferably, ion-exchange membrane electrolyzer, alkali liquid high-level groove, circulation alkali heat exchanger, circulation alkali pump, catholyte storage tank, finished product
Connecting line between alkali pump, product caustic soda cooler and each device of product caustic soda heat exchanger uses the material of alkali corrosion resistance.
Preferably, circulation alkali heat exchanger and product caustic soda heat exchanger are respectively equipped with temperature-detecting device.
Compared to the prior art production of caustic soda waste heat utilization device described in the utility model, has following beneficial effect：
1st, the comprehensive utilization ratio of energy is improved, using the finished product high temperature caustic soda of ion-exchange membrane electrolyzer generation to the pure of entrance
Water heats, and reduces the dosage of steam and recirculated water, realizes maximum heat recovery, while economic benefit is created,
Realize energy-saving, low-carbon environment-friendly target；
2nd, corrosiveness of the high temperature alkaline solution to device is reduced as much as possible, improves the overall stability of device, more
Durable；
3rd, other accessory substances for forming production of caustic soda waste heat utilization device are converted into other products, improve the utilization of material
Rate, and add the income of enterprise.
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Accompanying drawing is further understood from, this practicality as a part of the present utility model for providing to of the present utility model
New schematic description and description is used to explain the utility model, but does not form to improper restriction of the present utility model.
Obviously, drawings in the following description are only some embodiments, to those skilled in the art, are not paying creation
Property work on the premise of, can also according to these accompanying drawings obtain other accompanying drawings.In the accompanying drawings：
Fig. 1 is the schematic diagram of the production of caustic soda waste heat utilization device of prior art；
Fig. 2 is the schematic diagram of production of caustic soda waste heat utilization device described in the utility model.
Marked in figure：1st, ion-exchange membrane electrolyzer, 2, alkali liquid high-level groove, 3, circulation alkali heat exchanger, 4, circulation alkali pump, 5, negative electrode
Liquid storage tank, 6, caustic product pump, 7, product caustic soda cooler, 8, product caustic soda heat exchanger.
It should be noted that these accompanying drawings and word description are not intended as limits design of the present utility model in any way
Scope, but be that those skilled in the art illustrate concept of the present utility model by reference to specific embodiment.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in embodiment is clearly and completely described, following examples are used to illustrate this
Utility model, but be not used to
The orientation or position relationship of the instruction such as " right side ", " vertical ", " interior ", " outer " are based on orientation shown in the drawings or position
Relation, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limit this reality to of the present utility model
With new scope.
, it is necessary to explanation in description of the present utility model, term " on ", " under ", "front", "rear", " left side ", limit.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary.
For the ordinary skill in the art, it can understand that specific in the utility model of above-mentioned term containing with concrete condition
Justice.
Embodiment one
Fig. 2 illustrates a kind of production of caustic soda waste heat utilization device described in the utility model, including ion-exchange membrane electrolyzer 1,
Alkali liquid high-level groove 2, circulation alkali heat exchanger 3, circulation alkali pump 4, catholyte storage tank 5, caustic product pump 6, product caustic soda cooler 7 and finished product
Alkali heat exchanger 8；
The cathode chamber of ion-exchange membrane electrolyzer 1 is provided with lye export and alkali liquor inlet, and lye export connects with catholyte storage tank 5
Connect, alkali liquor inlet is connected with the outlet of alkali liquid high-level groove 2；
Catholyte storage tank 5 is provided with two liquid outlets, and one of liquid outlet is successively through circulating alkali pump 4, can be passed through steam
Circulation alkali heat exchanger 3 is connected with the import of alkali liquid high-level groove 2, and another liquid outlet is sequentially connected finished product alkali pump 6, product caustic soda heat exchange
Device 8 and the product caustic soda cooler 7 provided with recirculated water, in product caustic soda heat exchanger 8 and it is passed through by the alkali lye that caustic product pump 6 pumps
Pure water carries out heat exchange, and the pure water after heating enters circulation alkali heat exchanger 3 and entered after steam heats in alkali liquid high-level groove 2.
Alkali lye is delivered to product caustic soda heat exchanger 8, product caustic soda by catholyte storage tank 5 successively by a pipeline of caustic product pump 6
Cooler 7 simultaneously enters finished pot area.
The bottom of the side of product caustic soda cooler 7 is provided with recirculated water filling pipe end, and the top of opposite side is provided with recirculated water water return outlet.
Alkali liquid high-level groove 2 is horizontal tank body, and the left and right ends of horizontal tank body are the circles being connected smoothly with middle part
Arcuate structure, the outlet of alkali liquid high-level groove 2 are located at horizontal tank base, close to middle part.
Catholyte storage tank 5 is horizontal tank body, and the left and right ends of horizontal tank body are the circles being connected smoothly with middle part
Arcuate structure, two liquid outlets of catholyte storage tank 5 are respectively provided at horizontal tank body left and right ends, close to the bottom of middle part.
The top of the cathode chamber of ion-exchange membrane electrolyzer 1 is provided with hydrogen outlet, and the top of anode chamber is provided with chlorine gas outlet
Exported with light salt brine, the downside of anode chamber is provided with feed brine entrance.
The chlorine gas outlet of ion-exchange membrane electrolyzer 1 is connected by conveyance conduit with Chlorine Scrubber, and compression is dried by washing
After be delivered to downstream user.
The hydrogen outlet of ion-exchange membrane electrolyzer 1 is connected by conveyance conduit with flush of hydrogen gas tower, and compression is dried by washing
After be delivered to downstream user.
Ion-exchange membrane electrolyzer 1, alkali liquid high-level groove 2, circulation alkali heat exchanger 3, circulation alkali pump 4, catholyte storage tank 5, product caustic soda
Connecting line between 8 each device of pump 6, product caustic soda cooler 7 and product caustic soda heat exchanger uses the material of alkali corrosion resistance.
Circulation alkali heat exchanger 3 and product caustic soda heat exchanger 8 are respectively equipped with temperature-detecting device.
Described production of caustic soda waste heat utilization device is carried out using the pure water added into circulation alkali liquor and high temperature product caustic soda
Heat exchange, 49 DEG C or so are cooled to by 87 DEG C of high-temperature alkali, then pass through product caustic soda cooler 7 again through circulating water to 40 DEG C.
Meanwhile 25 DEG C of pure water is heated to 80 DEG C, changed again by circulation alkali heat exchanger 3 with steam after being mixed with circulation alkali liquor
Heat is so that pure water is heated to 89 DEG C or so.
High temperature product caustic soda is precooled by using the pure water added in circulation alkali liquor, then passes through product caustic soda cooler 7 again
40 DEG C are cooled to, greatly reduces the dosage of recirculated water, pure water is preheated to 80 DEG C by 25 DEG C, then again by being steam heated to 89
DEG C, so as to reduce steam consumption.
Fig. 1 illustrates the production of caustic soda waste heat utilization device of prior art, and the device includes ion-exchange membrane electrolyzer 1, alkali lye
Head tank 2, circulation alkali heat exchanger 3, circulation alkali pump 4, catholyte storage tank 5, caustic product pump 6 and product caustic soda cooler 7.Ionic membrane electricity
Solution groove 1 prepares the total pipeline that the high temperature caustic lye of soda generated collects in alkali lye, into catholyte storage tank 5, is sent out by circulation alkali pump 4
Part alkali lye makes the temperature adjustment of alkali lye to 85~90 after it with the addition of pure water by the heating of steam at circulation alkali heat exchanger 3
DEG C, then return to ion-exchange membrane electrolyzer 1 and recycled, another part alkali lye of catholyte storage tank 5 is through caustic product pump 6,87
DEG C product caustic soda exchanged heat in product caustic soda cooler 7 with recirculated water, cool the temperature to 40 DEG C, the product caustic soda after cooling is delivered to
Product caustic soda tank field, carry out filling and sell.
The production of caustic soda waste heat utilization device of prior art needs to consume substantial amounts of recirculated water in alkaline, and also by
Outside steam is heated, and the heat of high-temperature alkali fails to utilize, and causes great energy dissipation.
Compared to the prior art production of caustic soda waste heat utilization device described in the present embodiment, has following beneficial effect：
1st, the comprehensive utilization ratio of energy is improved, using the finished product high temperature caustic soda of ion-exchange membrane electrolyzer generation to the pure of entrance
Water heats, and reduces the dosage of steam and recirculated water, realizes maximum heat recovery, while economic benefit is created,
Realize energy-saving, low-carbon environment-friendly target；
2nd, corrosiveness of the high temperature alkaline solution to device is reduced as much as possible, improves the overall stability of device, more
Durable；
3rd, other accessory substances for forming production of caustic soda waste heat utilization device are converted into other products, improve the utilization of material
Rate, and add the income of enterprise.
Described above is only preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, although the utility model is disclosed above with preferred embodiment, but is not limited to the utility model, any to be familiar with
The technical staff of this patent is not being departed from the range of technical solutions of the utility model, when the technology contents work using above-mentioned prompting
Go out a little change or be modified to the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solutions of the utility model,
Any simple modification, equivalent change and modification made according to the technical essence of the utility model to above example, still belongs to
In the range of the utility model.
Claims (10)
- A kind of 1. production of caustic soda waste heat utilization device, it is characterised in that including ion-exchange membrane electrolyzer (1), alkali liquid high-level groove (2), Circulation alkali heat exchanger (3), circulation alkali pump (4), catholyte storage tank (5), caustic product pump (6), product caustic soda cooler (7) and product caustic soda Heat exchanger (8)；The cathode chamber of ion-exchange membrane electrolyzer (1) is provided with lye export and alkali liquor inlet, and lye export connects with catholyte storage tank (5) Connect, alkali liquor inlet is connected with the outlet of alkali liquid high-level groove (2)；Catholyte storage tank (5) is provided with two liquid outlets, and one of liquid outlet is successively through circulating alkali pump (4), can be passed through steam Circulation alkali heat exchanger (3) is connected with the import of alkali liquid high-level groove (2), and another liquid outlet is sequentially connected finished product alkali pump (6), finished product Alkali heat exchanger (8) and the product caustic soda cooler (7) provided with recirculated water, exchanged heat by the alkali lye of caustic product pump (6) pumping in product caustic soda Device (8) place and the pure water being passed through carry out heat exchange, and it is laggard through steam heating again that the pure water after heating enters circulation alkali heat exchanger (3) Enter in alkali liquid high-level groove (2).
- 2. production of caustic soda waste heat utilization device according to claim 1, it is characterised in that catholyte storage tank (5) is by finished product Alkali lye is delivered to product caustic soda heat exchanger (8), product caustic soda cooler (7) and enters finished pot by one pipeline of alkali pump (6) successively Area.
- 3. production of caustic soda waste heat utilization device according to claim 1, it is characterised in that product caustic soda cooler (7) side Bottom be provided with recirculated water filling pipe end, the top of opposite side is provided with recirculated water water return outlet.
- 4. production of caustic soda waste heat utilization device according to claim 1, it is characterised in that alkali liquid high-level groove (2) is horizontal Tank body, the left and right ends of horizontal tank body have the arc-shaped structure being connected smoothly with middle part, alkali liquid high-level groove (2) Outlet is located at horizontal tank base, close to middle part.
- 5. production of caustic soda waste heat utilization device according to claim 1, it is characterised in that catholyte storage tank (5) is horizontal Tank body, the left and right ends of horizontal tank body have the arc-shaped structure being connected smoothly with middle part, catholyte storage tank (5) Two liquid outlets are respectively provided at horizontal tank body left and right ends, close to the bottom of middle part.
- 6. production of caustic soda waste heat utilization device according to claim 1, it is characterised in that the moon of ion-exchange membrane electrolyzer (1) The top of pole chamber is provided with hydrogen outlet, and the top of anode chamber is provided with chlorine gas outlet and light salt brine exports, under anode chamber Side is provided with feed brine entrance.
- 7. production of caustic soda waste heat utilization device according to claim 6, it is characterised in that the chlorine of ion-exchange membrane electrolyzer (1) Gas outlet is connected by conveyance conduit with Chlorine Scrubber, and downstream user is delivered to after compression is dried in washing.
- 8. production of caustic soda waste heat utilization device according to claim 6, it is characterised in that the hydrogen of ion-exchange membrane electrolyzer (1) Gas outlet is connected by conveyance conduit with flush of hydrogen gas tower, and downstream user is delivered to after compression is dried in washing.
- 9. production of caustic soda waste heat utilization device according to claim 1, it is characterised in that ion-exchange membrane electrolyzer (1), alkali lye Head tank (2), circulation alkali heat exchanger (3), circulation alkali pump (4), catholyte storage tank (5), caustic product pump (6), product caustic soda cooler (7) connecting line between product caustic soda heat exchanger (8) each device uses the material of alkali corrosion resistance.
- 10. production of caustic soda waste heat utilization device according to claim 1, it is characterised in that circulation alkali heat exchanger (3) and into Product alkali heat exchanger (8) is respectively equipped with temperature-detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392452.8U CN206624926U (en) | 2017-04-14 | 2017-04-14 | A kind of production of caustic soda waste heat utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392452.8U CN206624926U (en) | 2017-04-14 | 2017-04-14 | A kind of production of caustic soda waste heat utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206624926U true CN206624926U (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720392452.8U Active CN206624926U (en) | 2017-04-14 | 2017-04-14 | A kind of production of caustic soda waste heat utilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206624926U (en) |
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2017
- 2017-04-14 CN CN201720392452.8U patent/CN206624926U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gao Zijian Inventor after: Lang Xuxia Inventor after: Zhang Qingliang Inventor after: Bo Zhenhai Inventor after: Shi Jie Inventor before: Lang Xuxia Inventor before: Gao Zijian Inventor before: Zhang Qingliang Inventor before: Bo Zhenhai Inventor before: Shi Jie |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210707 Address after: No.66 Gangfeng Road, Boli Town, Huangdao District, Qingdao City, Shandong Province 266409 Patentee after: QINGDAO HAIWAN CHEMICAL Co.,Ltd. Address before: 266061, 29 floor, China commercial International Building, 8 Quling Ling Road, Laoshan, Qingdao, Shandong. Patentee before: QINGDAO HAIWAN GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.66 Gangfeng Road, Boli Town, Huangdao District, Qingdao City, Shandong Province 266409 Patentee after: Qingdao Gulf Chemical Co.,Ltd. Address before: No.66 Gangfeng Road, Boli Town, Huangdao District, Qingdao City, Shandong Province 266409 Patentee before: QINGDAO HAIWAN CHEMICAL Co.,Ltd. |