CN103771462A - Vaporization system for recycling secondary steam heat of magnesium chloride - Google Patents
Vaporization system for recycling secondary steam heat of magnesium chloride Download PDFInfo
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- CN103771462A CN103771462A CN201410029790.6A CN201410029790A CN103771462A CN 103771462 A CN103771462 A CN 103771462A CN 201410029790 A CN201410029790 A CN 201410029790A CN 103771462 A CN103771462 A CN 103771462A
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- magnesium chloride
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to a vaporization system for recycling secondary steam heat of magnesium chloride. A heat exchanger is arranged between a steam outlet of a magnesium chloride evaporator and a steam inlet of a mixing condenser; a feed liquid is communicated with a feeding hole of the magnesium chloride evaporator through a heat exchanger tube pass; the steam outlet of the magnesium chloride evaporator is communicated with the heat exchanger tube pass through a secondary steam pipeline; heat exchanged residual steam is connected with the steam inlet of the mixing condenser. Not only is the recycle of the secondary steam heat ensured, but also the aims of energy saving and emission reduction are achieved. The heat exchanger is made of a titanium material, and the secondary steam pipeline is made of glass fiber reinforced plastics, so that equipment and the pipeline are prevented from being corroded by acidic steam, and the service lives of the equipment and the pipeline are prolonged. The system has the advantages that the heat exchanger is additionally arranged between the original evaporator and mixing condenser, and other equipment is not modified, so that the convenience is provided, and meanwhile, the problem that the evaporator can not be used for production because the heat exchange of the evaporator is affected by positive pressure generated in the evaporator by steam from the magnesium chloride evaporator is solved.
Description
Technical field
The present invention relates to a kind of magnesium chloride vapo(u)rization system, particularly relate to a kind of vapo(u)rization system of magnesium chloride secondary steam heat energy recycle.
Background technology
In prior art, magnesium chloride vapo(u)rization system is to extract thickening equipment, adopts the hot principle of work of shell and tube circulation, external, adds a certain amount of solution in evaporation equipment, and heating makes solution explosive evaporatoin.In evaporative process, the concentration of solution and boiling point improve constantly, and liquid level declines, and now to make-up solution in vaporizer, keep liquid level constant, and the liquid surface evaporations such as implementations, till requiring concentration.After a discharge, supplement new solution again concentrated.As shown in Figure 1, this system comprises for evaporating feed liquid and being respectively equipped with the vaporizer 1 of opening for feed, discharge port, steam inlet, vapour outlet and condensation-water drain, discharge port 12 and the connected transfering material pump 2 of described vaporizer 1, described vaporizer vapour outlet 31 is connected to the steam inlet 41 of a mixing condenser 4, and the steam outlet 42 of described mixing condenser also connects the liquid seal trough 5 for absorbing sour gas; Feed liquid is the concentrated brine that is rich in Cl-, Mg2+ etc., adopts magnesium chloride vapo(u)rization system to evaporate moisture, obtains magnesium chloride product.Its technical process is: as Fig. 1, feed liquid enters magnesium chloride vaporizer 1; Heating steam is carried out heating evaporation as the thermal source of magnesium chloride vaporizer 1 to feed liquid, completes liquid and is discharged by discharge gate 12, is discharged to jacket heat-preservation groove by transfering material pump 2.Steam condensate after heating is discharged, and the secondary steam producing after feed liquid heating is discharged by secondary steam pipeline 3 by the mouth of pipe 31, enters mixing condenser 4, enters into the interior discharge system of liquid seal trough 5.At present, in magnesium chloride vaporizer, the steam that enters magnesium chloride vaporizer is used for and feed liquid heat exchange, so that feed liquid is improved to temperature evaporation concentration, in the time that feed liquid is evaporated, part MgCl2 wherein issues raw hydrolytic action in higher temperature, produce hydrogen chloride gas, it is acid that this steam is, easily etching apparatus and pipeline, two vapor temperatures that go out through magnesium chloride evaporator evaporation are 90 ℃ of left and right, heat enthalpy value is at 633.4Kcal/kg, there is higher heat, but this steam is entered outside mixing condenser is exhausted from system after condensation, the heat energy of this steam is not utilized, lose in vain, do not reach the object of energy-saving and emission-reduction.If the steam that magnesium chloride evaporator evaporation goes out is not outside removal system, can cause in vaporizer and produce malleation, affect vaporizer heat exchange, vaporizer can not be produced, thereby a kind of magnesium chloride secondary steam heat energy recycle vapo(u)rization system is provided, become industry concerned issue.
Summary of the invention
The object of the invention is for the defect existing in prior art, a kind of magnesium chloride vapo(u)rization system of secondary steam heat energy recycle is provided.
For realizing the technical scheme that object of the present invention adopts be:
A kind of vapo(u)rization system of magnesium chloride secondary steam heat energy recycle, an interchanger is set between the vapour outlet of magnesium chloride vaporizer and the steam inlet of mixing condenser, feed liquid is communicated with magnesium chloride evaporation feed liquor mouth by heat exchanger tube pass, the vapour outlet of magnesium chloride vaporizer is communicated with heat exchanger shell pass by secondary steam pipeline, and the residue vapor after heat exchange is connected with mixing condenser steam inlet.
Described interchanger adopts the titanium interchanger that material is titanium.
Described vaporizer is vacuum-evaporator.
Described vaporizer is provided with tensimeter and thermometer.
Described vaporizer secondary steam pipeline material is glass reinforced plastic.
Compared with prior art, the invention has the beneficial effects as follows:
(1) the invention provides a kind of secondary steam heat energy recycle magnesium chloride vapo(u)rization system, between original vaporizer and mixing condenser, set up interchanger, the secondary steam that vaporizer is discharged is by the shell side of interchanger, feed liquid is by the tube side of this interchanger, both guarantee the heat recovery and utilization of secondary steam, reached the object of energy-saving and emission-reduction.
(2) in the present invention, interchanger adopts titanium material, secondary vapor pipeline to adopt glass steel material, avoided acid vapors etching apparatus and pipeline, has extended the work-ing life of equipment, pipeline.
(3) this system just adds interchanger between original vaporizer and mixing condenser, do not relate to the transformation of other equipment, so both convenient, have and solved the steam that magnesium chloride evaporator evaporation goes out, can cause generation malleation in vaporizer, affect vaporizer heat exchange, make the not fertile problem of vaporizer.
Accompanying drawing explanation
Figure 1 shows that the front view of magnesium chloride vapo(u)rization system in prior art;
Figure 2 shows that the front view of magnesium chloride vapo(u)rization system of the present invention.
In figure: 1. vaporizer, 11. evaporation feed liquor mouths, 12. vaporizer discharge ports, 21. vaporizer steam inlets, 22. evaporator condensation water outs, 31, the outlet of vaporizer secondary steam, 3, vaporizer secondary steam pipeline, 4. mixing condenser, 41. mixing condenser steam inlets, 42. mixing condenser steam outlets, 43, mixing condenser entrance of cooling water, 5, liquid seal trough, 12, vaporizer completes liquid outlet, 2, transfering material pump, 6, titanium heat exchanger, 9, titanium heat exchanger liquor inlet, 10, titanium heat exchanger material liquid outlet, 61, the import of titanium heat exchanger secondary steam, 62, the outlet of titanium heat exchanger secondary steam, 63, condensed water discharge outlet.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 2, the magnesium chloride vapo(u)rization system that a kind of secondary steam is recycled, this system comprises for evaporating feed liquid and being respectively equipped with the vaporizer 1 of opening for feed, discharge port, steam inlet, vapour outlet and condensation-water drain, discharge port 12 and the connected transfering material pump 2 of described vaporizer 1, described vaporizer vapour outlet 31 is connected to the steam inlet 41 of a mixing condenser 4, and the steam outlet 42 of described mixing condenser also connects the liquid seal trough 5 for absorbing sour gas; Feed liquid is the concentrated seawater that is rich in Cl-, Mg2+ etc., adopts magnesium chloride vapo(u)rization system to evaporate moisture, obtains magnesium chloride, and its technical process is: as Fig. 1, feed liquid enters magnesium chloride vaporizer 1; Feeding temperature is 40 ℃ of left and right, vaporizer is vacuum-evaporation, be controlled at-0.065MPa of vacuum pressure, vaporization temperature is controlled at 130 ℃ of discharges, heating steam is carried out heating evaporation as the thermal source of magnesium chloride vaporizer 1 to feed liquid, complete liquid and discharged by discharge gate 12, be discharged to jacket heat-preservation groove by transfering material pump 2.Steam condensate after heating is discharged, and the secondary steam producing after feed liquid heating is discharged by secondary steam pipeline 3 by the mouth of pipe 31, enters mixing condenser 4, enters into the interior discharge system of liquid seal trough 5.Between the secondary steam outlet of described vaporizer and the steam inlet of described mixing condenser, set up one for reclaiming the 90m2 titanium 10 material interchanger of vaporizer secondary steam heat, described feed liquid is communicated with described evaporation feed liquor mouth by described heat exchanger tube pass, and secondary steam is walked shell side, feed liquid is walked tube side.Because secondary steam temperature is 90 ℃ of left and right, utilize its heat to pass to feed liquid by titanium heat exchanger, make the feed temperature that enters interchanger bring up to 60 ℃ of left and right of temperature out from 40 ℃ of left and right, so just reduce the steam consumption in evaporator evaporation process.Guarantee the heat recovery and utilization of secondary steam, reached the object of energy-saving and emission-reduction.Because interchanger adopts titanium material, vaporizer secondary vapor pipeline adopts glass steel material to extend the work-ing life of interchanger and secondary steam pipeline.And this system just adds interchanger between original magnesium chloride vaporizer and mixing condenser, do not relate to the replacing of other equipment, therefore the transformation degree of whole system is low, easy and simple to handle, easily realizes, and is applicable to the needs that large-scale industrial is produced.Best embodiment be described interchanger 6 to adopt material be the titanium interchanger of titanium, the material with titanium as interchanger, to the good corrosion resistance of sour gas, has extended the work-ing life of equipment; Described vaporizer is vacuum-evaporator, can evaporate more efficiently feed liquid like this, enhances productivity; Described vaporizer is equipped with tensimeter and thermometer, and convenient operation personnel are adjusting process condition more exactly, reaches good product quality, effect that capacity usage ratio is high; Described transfering material pump 2 is chemical flow-process pump, and corrosion-resistant, running efficiency is high, thereby enhances productivity.Above-mentioned interchanger, vaporizer, chemical flow-process pump pump, tensimeter, thermometer all adopt commercially available conventional products.
Unit type: interchanger: titanium interchanger 90m
2
Vaporizer: titanium compound plate evaporator specification is: ￠ 2600 × 8220
Chemical-process pump type: HJ125-100-250
Tensimeter model: YZ-150
Thermometer model: WZPF-230
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. the vapo(u)rization system of a magnesium chloride secondary steam heat energy recycle, it is characterized in that: an interchanger is set between the vapour outlet of magnesium chloride vaporizer and the steam inlet of mixing condenser, feed liquid is communicated with magnesium chloride evaporation feed liquor mouth by heat exchanger tube pass, the vapour outlet of magnesium chloride vaporizer is communicated with heat exchanger shell pass by secondary steam pipeline, and the residue vapor after heat exchange is connected with mixing condenser steam inlet.
2. vapo(u)rization system according to claim 1, is characterized in that: described interchanger adopts the titanium interchanger that material is titanium.
3. vapo(u)rization system according to claim 1, is characterized in that: described vaporizer is vacuum-evaporator.
4. vapo(u)rization system according to claim 1, is characterized in that: described vaporizer is provided with tensimeter and thermometer.
5. vapo(u)rization system according to claim 1, is characterized in that: described vaporizer secondary steam pipeline material is glass reinforced plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029790.6A CN103771462A (en) | 2014-01-22 | 2014-01-22 | Vaporization system for recycling secondary steam heat of magnesium chloride |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029790.6A CN103771462A (en) | 2014-01-22 | 2014-01-22 | Vaporization system for recycling secondary steam heat of magnesium chloride |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2555909A1 (en) * | 2004-02-10 | 2005-08-25 | The Texas A&M University System | Vapor-compression evaporation system and method |
| CN202590405U (en) * | 2012-05-31 | 2012-12-12 | 方亚飞 | Triple effect concentration evaporator |
| CN103182193A (en) * | 2011-12-31 | 2013-07-03 | 上海金皮宝制药有限公司 | Energy-saving and efficient concentration system |
| CN103386207A (en) * | 2013-07-22 | 2013-11-13 | 天津长芦汉沽盐场有限责任公司 | Potassium chloride triple-effect evaporation system capable of improving heat energy utilization rate |
-
2014
- 2014-01-22 CN CN201410029790.6A patent/CN103771462A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2555909A1 (en) * | 2004-02-10 | 2005-08-25 | The Texas A&M University System | Vapor-compression evaporation system and method |
| CN103182193A (en) * | 2011-12-31 | 2013-07-03 | 上海金皮宝制药有限公司 | Energy-saving and efficient concentration system |
| CN202590405U (en) * | 2012-05-31 | 2012-12-12 | 方亚飞 | Triple effect concentration evaporator |
| CN103386207A (en) * | 2013-07-22 | 2013-11-13 | 天津长芦汉沽盐场有限责任公司 | Potassium chloride triple-effect evaporation system capable of improving heat energy utilization rate |
Non-Patent Citations (1)
| Title |
|---|
| 蒋国海: "多效蒸发末效二次蒸汽利用对节能的研究", 《四川食品与发酵》 * |
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Application publication date: 20140507 |