CN202506163U - Evaporating crystallizer device with mechanical vapor compressor - Google Patents
Evaporating crystallizer device with mechanical vapor compressor Download PDFInfo
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- CN202506163U CN202506163U CN 201220089427 CN201220089427U CN202506163U CN 202506163 U CN202506163 U CN 202506163U CN 201220089427 CN201220089427 CN 201220089427 CN 201220089427 U CN201220089427 U CN 201220089427U CN 202506163 U CN202506163 U CN 202506163U
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- heat exchanger
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Abstract
The utility model relates to evaporating crystallization equipment for production in enterprises of light industry, food industry, petrochemical industry and biological pharmacy. According to an evaporating crystallizer device with a mechanical vapor compressor, a vapor outlet end of a heat exchanger is communicated with an air inlet end of a crystallizer; the crystallizer is provided with a feed end, and a discharge end of the crystallizer is provided with a discharge pump; the evaporating crystallizer device is mainly characterized in that a vapor inlet end of the heat exchanger is communicated with a vapor outlet of the mechanical vapor compressor; and an air inlet of a high-speed centrifugal fan of the mechanical vapor compressor is communicated with a vapor outlet end of the crystallizer. Materials to be crystallized circulate in the heat exchanger and the crystallizer at large flow, the materials are hated by the heat exchanger and then subjected to flash evaporation in the crystallizer, the concentration of the materials is increased, and after certain supersaturation is formed, the materials are crystallized. Secondary vapor produced by evaporation in the crystallizer is sucked into the compressor by the mechanical vapor compressor, and then is compressed, the vapor of which the pressure and the pressure are increased provides a heat source for the shell-and-tube heat exchanger again, and the process is circulated repeatedly, so that energy resources are saved.
Description
Technical field
The utility model relates to light industry and food, petrochemical industry, bio-pharmaceuticals class enterprise production and uses evaporation crystallization equipment.
Background technology
The chemical industry crystallization process is the important chemical operating unit; Develop rapidly along with national economy; The chemical industry crystallization is widely used in the production of various chemical products and other industrial products and intermediate products; Especially the indispensable especially process of production of products such as salt, alkali, sugar, medicine, and applicating history is remote.The raising product competitiveness that reduces production costs is a modern production enterprise Eternal Theme.Because traditional crystallizer energy consumption is bigger, therefore, the MVR crystallizing evaporator that the utlity model has remarkable energy-saving significance has great application prospect on market.
The utility model content
The purpose of the utility model is to avoid the deficiency of prior art that a kind of evaporative crystallization apparatus that has the mechanical vapour compressor is provided; This crystallizer is with the supporting use of MVR and traditional crystallizer, and the occupation of land space is little, heat transfer efficiency is high, treating capacity is big, energy consumption is extremely low.
The technical scheme that the utility model solves the problems of the technologies described above is following: a kind of evaporative crystallization apparatus that has the mechanical vapour compressor includes at the steam (vapor) outlet end of heat exchanger and is connected with inlet end on the crystallizer; Crystallizer is provided with feed end; Its discharge end is provided with discharging pump; Its main feature is that the steam inlet end that also includes heat exchanger is connected with the steam (vapor) outlet of the compressor of mechanical vapour compressor, and the inlet end of the high-speed centrifugal fan of mechanical vapour compressor is connected with steam outlet side on the crystallizer.
The described evaporative crystallization apparatus that has the mechanical vapour compressor, the inlet end that also includes the high-speed centrifugal fan of mechanical vapour compressor is provided with plate-type condenser, and the outlet side of said plate-type condenser is communicated with the inlet end of mechanical vapour compressor; Also be provided with second condensate pump and vavuum pump on the said plate-type condenser.
The described evaporative crystallization apparatus that has the mechanical vapour compressor, described crystallizer are forced circulation crystallizer or fluidized bed type crystallizer (Oslo) or hide conduction crystallizer (DTB).
The described evaporative crystallization apparatus that has the mechanical vapour compressor, the high-speed centrifugal fan of described mechanical vapour compressor are that the crystallizing evaporator of little evaporation capacity adopts high rate turbine compression fan or roots-type blower fan.
The described evaporative crystallization apparatus that has the mechanical vapour compressor is provided with the steam inlet end on the steam (vapor) outlet of the compressor of the steam inlet of described heat exchanger end and mechanical vapour compressor, be connected with the steam (vapor) outlet of steam boiler.
The described evaporative crystallization apparatus that has the mechanical vapour compressor also is provided with the steam inlet end on the steam (vapor) outlet of the compressor of the steam inlet of described heat exchanger end and mechanical vapour compressor, be connected with the steam (vapor) outlet of steam boiler.
The described evaporative crystallization apparatus that has the mechanical vapour compressor, heat exchanger is shell-and-tube heat exchanger or plate type heat exchanger, is used to heat material to be evaporated.
The beneficial effect of the utility model is: the maximum innovative point of this vaporising device is that mechanical vapour compressor and crystal system are used, and makes whole system need not use live steam, and the operation of device is more energy-conservation, has reduced equipment operating cost.
The high-efficiency evaporating and crystallizing device of large-scale band MVR (Mechanical Vapor Recompression mechanical vapour compressor is called for short MVR, or Mechanical Vapor Compression, is called for short MVC).This equipment is the evaporative crystallization device that one is formed by MVR centrifugal blower, shell-and-tube heat exchanger, crystallizer, pump valve, electric-control system, and the characteristics of this equipment are advanced technology, and evaporation capacity is big, and the occupation of land space is little, and energy consumption is low, heat transfer coefficient, crystallization yields height.Technical scheme is: in the crystal system of being made up of shell-and-tube heat exchanger and Oslo crystallizer or DTB crystallizer, increase the MVR centrifugal blower, form new evaporation and crystallization system, the indirect steam that the crystallizer evaporation produces is sucked by the MVR centrifugal blower; After the overcompression increasing temperature and pressure; Get into heat exchanger, to the concentrated material heating of treating of circulation, the material of heating evaporates in crystallizer; Produce indirect steam again, so repeatedly circulation.
Description of drawings
Do further to detail below in conjunction with the most preferred embodiment shown in the accompanying drawing:
Fig. 1 looks sketch map for the master of the utility model embodiment.
MVR (mechanical vapour compressor); 1-1. compressor; 1-2. steam (vapor) outlet; 1-3. centrifugal blower; 1-4. mechanical vapour compressor inlet end; 2. heat exchanger; 2-1. steam inlet end; 2-2. steam (vapor) outlet end; 2-3. arrival end; 3, the first condensate pumps; 4. crystallizer; 4-1. inlet end; 4-2. steam outlet side; 4-3. feed end; 4-4. discharge end; 5. discharging pump; 6. plate-type condenser; 6-1. the outlet side of plate-type condenser; 7. second condensate pump; 8. vavuum pump.
The specific embodiment
Below in conjunction with accompanying drawing the principle and the characteristic of the utility model are described, institute gives an actual example and only is used to explain the utility model, is not the scope that is used to limit the utility model.
Embodiment 1: see Fig. 1, and a kind of evaporative crystallization apparatus that has the mechanical vapour compressor, the steam (vapor) outlet end 2-2 that includes at shell-and-tube heat exchanger 2 is connected with the inlet end 4-1 on the crystallizer 4; Crystallizer 4 is provided with feed end 4-3, and its discharge end 4-4 is provided with discharging pump 5; The steam inlet end 2-1 that also includes heat exchanger 2 is connected with the steam (vapor) outlet 1-2 of the compressor 1-1 of mechanical vapour compressor 1, and the inlet end 1-4 of the high-speed centrifugal fan 1-3 of mechanical vapour compressor 1 is connected with steam outlet side 4-2 on the crystallizer 4.
Material to be crystallized is big flow circulation in shell-and-tube heat exchanger and crystallizer, material after the shell-and-tube heat exchanger heating, flash distillation in crystallizer, material concentration increases, and forms certain degree of supersaturation post crystallization.Compress after the indirect steam that the mechanical vapour compressor produces evaporation in the crystallizer sucks compressor, the steam after the increasing temperature and pressure circulates energy savings so repeatedly once more for shell-and-tube heat exchanger provides thermal source.
The inlet end 1-4 of the high-speed centrifugal fan 1-3 of mechanical vapour compressor 1 is provided with plate-type condenser 6, and the outlet side 6-1 of said plate-type condenser 6 is communicated with the inlet end 1-4 of mechanical vapour compressor 1; Also be provided with second condensate pump 7 and vavuum pump 8 on the said plate-type condenser 6.Vacuum system makes and forms certain negative pressure in the crystallizer, and the material boiling point is reduced, and reduces evaporating temperature.Between the arrival end 2-3 of the feed end 4-3 of crystallizer 4 and heat exchanger 2, be provided with first condensate pump 3.
Described crystallizer 4 is the forced circulation crystallizer.
The high-speed centrifugal fan of described mechanical vapour compressor is that the crystallizing evaporator of little evaporation capacity adopts high rate turbine compression fan or roots-type blower fan.
On the steam (vapor) outlet 1-2 of the compressor 1-1 of the steam inlet of described heat exchanger 2 end 2-1 and mechanical vapour compressor 1, be provided with the steam inlet end, be connected with the steam (vapor) outlet of steam boiler.
Embodiment 2: a kind of evaporative crystallization apparatus that has the mechanical vapour compressor; On the steam (vapor) outlet 1-2 of the compressor 1-1 of the steam inlet of described heat exchanger 2 end 2-1 and mechanical vapour compressor 1, also be provided with the steam inlet end, be connected with the steam (vapor) outlet of steam boiler.Beginning in system works; Need to system provide working steam or when the temperature rise of mechanical vapour compressor not enough; Then can replenish the part live steam at compressor outlet; With the raising heat transfer efficiency, or adopt two mechanical vapour compressors series connection to use, to improve the mechanical vapour compressor exit temperature.All the other structures are identical with embodiment 1.
Embodiment 3: a kind of evaporative crystallization apparatus that has the mechanical vapour compressor, and the described evaporative crystallization apparatus that has the mechanical vapour compressor, heat exchanger 2 is a plate type heat exchanger, is used to heat material to be evaporated.All the other structures are identical with embodiment 1.
Embodiment 4: a kind of evaporative crystallization apparatus that has the mechanical vapour compressor, described crystallizer 4 is fluidized bed type crystallizer (Oslo).All the other structures are identical with embodiment 1.
Embodiment 5: a kind of evaporative crystallization apparatus that has the mechanical vapour compressor, described crystallizer 4 is for hiding conduction crystallizer (DTB).All the other structures are identical with embodiment 1.
Being used of mechanical vapour compressor and all kinds of crystallizers, MVR sucks compressor with evaporating the indirect steam that in the crystallizer, and compressor is converted into mechanical energy with electric energy; The indirect steam that compression sucks; Make the indirect steam increasing temperature and pressure of suction, become superheated steam, simultaneously; Replenish a certain amount of water in the compressor, make superheated steam absorb water and change saturated vapor into.After the compression intensification through single-stage compressor, the MVR outlet temperature promotes about 8 ℃ than inlet temperature.Saturated vapor after the intensification is entered shell-and-tube heat exchanger by MVR, carries out heat exchange with treating concentrated material, for the material evaporation provides thermal source.Get in the crystallizer after material is heated and carry out vapor-liquid separation, isolated indirect steam then continues to get into the MVR compression and heats up, and so repeatedly, then the circulatory system is set up.
Whole system also is aided with the vacuum condensation system, extracts not condensing out to keep certain system vacuum degree with vavuum pump.Condenser then is condensed into water with unnecessary part water vapour and discharges, owing to adopt closed circulation system, condenser needs the water vapour amount of condensation few, and cooling water amount is few, needs 1/10th of common evaporimeter approximately, practices thrift cooling water greatly.
In evaporation and crystallization system,, can replenish a small amount of live steam in the MVR outlet, to improve heat exchanger heat transfer efficient if the MVR temperature rise is lower.
Because MVR adopted the mode that electric energy is converted into mechanical energy, low-temperature steam exhaust is directly compressed recycle repeatedly again after the intensification, need not live steam, practice thrift secondary exhaust steam condensation again and use cooling water, practice thrift operating cost greatly.Having adopted the method for evaporation and concentration that material concentration is improved, formed certain degree of supersaturation and make the material crystallization, can be evaporative crystallization or freezing and crystallizing, and the final material that forms is not to be with the crystallization water or the band crystallization water.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. evaporative crystallization apparatus that has the mechanical vapour compressor includes at the steam (vapor) outlet end of heat exchanger and is connected with inlet end on the crystallizer; Crystallizer is provided with feed end, and its discharge end is provided with discharging pump; It is characterized in that the steam inlet end that also includes heat exchanger is connected with the steam (vapor) outlet of the compressor of mechanical vapour compressor, the inlet end of the high-speed centrifugal fan of mechanical vapour compressor is connected with steam outlet side on the crystallizer.
2. the evaporative crystallization apparatus that has the mechanical vapour compressor as claimed in claim 1; The inlet end that it is characterized in that also including the high-speed centrifugal fan of mechanical vapour compressor is provided with plate-type condenser, and the outlet side of said plate-type condenser is communicated with the inlet end of mechanical vapour compressor; Also be provided with condensate pump and vavuum pump on the said plate-type condenser.
3. the described evaporative crystallization apparatus that has the mechanical vapour compressor of claim 1 is characterized in that described crystallizer is forced circulation crystallizer or fluidized bed type crystallizer or hides the conduction crystallizer.
4. the evaporative crystallization apparatus that has the mechanical vapour compressor as claimed in claim 1, the high-speed centrifugal fan that it is characterized in that described mechanical vapour compressor are that the crystallizing evaporator of little evaporation capacity adopts high rate turbine compression fan or roots-type blower fan.
5. the evaporative crystallization apparatus that has the mechanical vapour compressor as claimed in claim 1; It is characterized in that on the steam (vapor) outlet of the compressor of the steam inlet of described heat exchanger end and mechanical vapour compressor, being provided with the steam inlet end, be connected with the steam (vapor) outlet of steam boiler.
6. the evaporative crystallization apparatus that has the mechanical vapour compressor as claimed in claim 1; It is characterized in that on the steam (vapor) outlet of the compressor of the steam inlet of described heat exchanger end and mechanical vapour compressor, also being provided with the steam inlet end, be connected with the steam (vapor) outlet of steam boiler.
7. like the described evaporative crystallization apparatus that has the mechanical vapour compressor of claim 1 to 6, it is characterized in that described heat exchanger is shell-and-tube heat exchanger or plate type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220089427 CN202506163U (en) | 2012-03-11 | 2012-03-11 | Evaporating crystallizer device with mechanical vapor compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220089427 CN202506163U (en) | 2012-03-11 | 2012-03-11 | Evaporating crystallizer device with mechanical vapor compressor |
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| Publication Number | Publication Date |
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| CN202506163U true CN202506163U (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220089427 Expired - Fee Related CN202506163U (en) | 2012-03-11 | 2012-03-11 | Evaporating crystallizer device with mechanical vapor compressor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641607A (en) * | 2012-03-11 | 2012-08-22 | 甘肃蓝科石化高新装备股份有限公司 | Vaporization crystallizer device with mechanical vapor compressor |
| CN103241749A (en) * | 2013-05-10 | 2013-08-14 | 甘肃蓝科石化高新装备股份有限公司 | Anhydrous sodium sulfate production system and production method |
| CN103566621A (en) * | 2013-11-06 | 2014-02-12 | 江苏赛格尔环保工程有限公司 | Evaporative crystallization device for extracting ammonium salt by utilizing vapor recompression technique |
-
2012
- 2012-03-11 CN CN 201220089427 patent/CN202506163U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641607A (en) * | 2012-03-11 | 2012-08-22 | 甘肃蓝科石化高新装备股份有限公司 | Vaporization crystallizer device with mechanical vapor compressor |
| CN103241749A (en) * | 2013-05-10 | 2013-08-14 | 甘肃蓝科石化高新装备股份有限公司 | Anhydrous sodium sulfate production system and production method |
| CN103566621A (en) * | 2013-11-06 | 2014-02-12 | 江苏赛格尔环保工程有限公司 | Evaporative crystallization device for extracting ammonium salt by utilizing vapor recompression technique |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20170311 |
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| CF01 | Termination of patent right due to non-payment of annual fee |