CN209438074U - A kind of citric acid concentration and evaporation system - Google Patents
A kind of citric acid concentration and evaporation system Download PDFInfo
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- CN209438074U CN209438074U CN201822021896.8U CN201822021896U CN209438074U CN 209438074 U CN209438074 U CN 209438074U CN 201822021896 U CN201822021896 U CN 201822021896U CN 209438074 U CN209438074 U CN 209438074U
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- evaporator
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- continuous concentration
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Abstract
The utility model provides a kind of citric acid concentration and evaporation system, the device includes 1- multi-effect evaporator, 2- multi-effect evaporator waste heat outlet pipe, 3- steam feeds pipeline, 4- valve, 5- compression fan, 6- continuous concentration evaporator steam line and 7- continuous concentration evaporator, technical scheme combines continuous concentration evaporator and multi-effect evaporator, heating pressurization is carried out to multi-effect evaporator waste heat by compression fan and generates high temperature and high pressure gas for the use of continuous concentration evaporator, using this system, originally discarded multi-effect evaporator waste heat is made full use of, not only reduce the consumption of steam, it ensure that stability requirement of the continuous concentration evaporator to evaporated vapor simultaneously, improve the stability of product quality, extend the service life of tubulation.
Description
Technical field
The utility model relates to vapo(u)rization system technical fields, and in particular to a kind of citric acid concentration and evaporation system.
Background technique
Multiple-effect evaporation is common evaporation equipment in Citric Acid Production industry, in traditional Multi-effect Evaporation Processes, is steamed
The secondary steam for sending out a certain effect of device cannot be directly as this effect heat source, can only be as the heat source of time effect or secondary a few effects.Such as this
Effect heat source must additionally give its energy, improve its temperature (pressure).Steam jet pump can only compression section secondary steam, simultaneously
Last steam waste heat carries out cooling by cooling water and wastes thermal energy, and the appearance of MVR technology changes disadvantage mentioned above, and MVR steams
Secondary steam all in the compressible evaporator of device is sent out, secondary steam passes through the compression of compression fan, and pressure and temperature is risen
Height, heat content increase therewith, and the heating room for being sent to evaporator is used as the i.e. raw steam of heating steam, and feed liquid is made to maintain evaporation shape
State, and heat steam itself and transfer heat to material itself and be condensed into water.In this way, the steam to be discarded originally is just filled
The utilization divided, has recycled latent heat, and improve the thermal efficiency.However some materials for needing high temperature evaporation are evaporated using MVR
Otherwise device can make airflow path too narrow, influence flow efficiency since the single-machine capacity of compression fan cannot be too small；And because according to
It can be converted to pressure energy by speed, speed is limited by factors such as the strengths of materials again, and the pressure ratio of every grade of compression fan is little,
When pressure is relatively high, multi-stage compression need to be used；It is lower that by multi-stage compression production capacity is limited in the high evaporation process of equipment investment, continuously
Excessively high to will lead to product peculiar smell, knot tubulation, evaporator service life short for vapor (steam) temperature used in process of production for concentration evaporator
The defects of.
Summary of the invention
For many shortcomings existing for prior art device, the utility model patent provides a kind of citric acid evaporation
System.
The specific technical solution of the utility model is:
A kind of citric acid concentration and evaporation system, the device include multi-effect evaporator, multi-effect evaporator waste heat outlet pipe, steam
Hot repair is to pipeline, valve, compression fan, continuous concentration evaporator steam line and continuous concentration evaporator, and specific structure is such as
Under:
The gas outlet of multi-effect evaporator is connected by multiple-effect evaporation waste heat outlet pipe with the import of compression fan, continuous dense
The air inlet of contracting evaporator is connected by continuous concentration evaporator steam line with the outlet of compression fan (5).
Steam supply pipeline is connected on the multi-effect evaporator waste heat outlet pipe, steam feeds pipeline and is equipped with valve；
The compression fan parameter: two-shipper centrifugal compressor, 180 kilowatts of power motor, by the secondary saturated vapor in three schools
From suction condition pressure -72Kpa, 74 DEG C of temperature are compressed to pressure -60KPa, and 80 DEG C of temperature.
After this structure, the waste heat that multiple-effect steaming device issues enters compression fan by multiple-effect evaporation waste heat outlet pipe
In carry out heating pressurization, the high temperature and high pressure gas of generation enters continuous concentration evaporation by continuous concentration evaporator steam line
Device, when the waste heat that multi-effect evaporator generates is less, openable valve feeds pipeline by steam and is passed through steam, thus the company of realization
The work of continuous evaporator more steady and continuous.
A part of steam preheating is needed when compressor start, after normal operation, in fan forced device to three school secondary steams
The thermal energy of steam is converted into pressure process by electric energy, evaporator temperature is always at 60 degrees Celsius during the entire process of continuous crystallisation
Left and right, the temperature difference between the steam and product of compressor increasing temperature and pressure remain at 5-8 degrees Celsius, product and heat medium
Between the Hu temperature difference it is smaller be more conducive to protect product quality, effectively prevent tying strong pipe；Compression fan continuous concentration evaporator and
Multi-effect evaporator combines, and compression fan may be implemented and carry out heating pressurization generation high temperature height to multi-effect evaporator waste heat
Body of calming the anger is used for continuous concentration evaporator, using this system, originally discarded multi-effect evaporator waste heat is made full use of, no
The consumption of steam is only reduced, while ensure that stability requirement of the continuous concentration evaporator to evaporated vapor, improves product
The stability of quality extends the service life of tubulation.
Using such design can using compression fan by multi-effect evaporator generate more than heat-staple supply continuous concentration
Evaporator.Since the steam supply of continuous concentration evaporator is stablized, evaporator tubulation ensure that the stabilization of evaporator evaporation by thermal balance
The stability of property and product quality, has reached the requirement of client.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of citric acid vapo(u)rization system described in the utility model；
In figure: 1 is multi-effect evaporator, and 2 be multi-effect evaporator waste heat outlet pipe, and 3 feed pipeline for steam, and 4 be valve,
5 be compression fan, and 6 be continuous concentration evaporator steam line, and 7 be continuous concentration evaporator.
Specific embodiment
Shown in referring to Fig.1, a kind of citric acid concentration and evaporation system provided by the invention includes that 1 multi-effect evaporator, 2 multiple-effect are steamed
It is continuous to send out device waste heat outlet pipe, 3 steam supply pipeline, 4 valves, 5 compression fans, 6 continuous concentration evaporator steam lines and 7
Concentration evaporator.
The gas outlet of multi-effect evaporator 1 is connected by multiple-effect evaporation waste heat outlet pipe 2 with the import of compression fan 5, more
Steam supply pipeline 3 and valve 4 are connected on effect evaporation waste heat outlet pipe 2, the air inlet of continuous concentration evaporator 7 passes through continuous
Concentration evaporator steam line 6 is connected with the outlet of compression fan 5.
In operational process, the waste heat that multi-effect evaporator 1 issues enters compression fan by multiple-effect evaporation waste heat outlet pipe 2
Heating pressurization is carried out in 5, the high temperature and high pressure gas of generation enters continuous concentration by continuous concentration evaporator steam line 6 and evaporates
Device 7 is to open valve 4 to be passed through steam by steam supply pipeline 3 when the waste heat that multi-effect evaporator generates is less, to guarantee
The steam supply of continuous concentration evaporator is stablized, and improves the stability of product quality.
Claims (2)
1. a kind of citric acid concentration and evaporation system, including multi-effect evaporator (1), it is characterised in that: the outlet of multi-effect evaporator (1)
Mouth is connected by multiple-effect evaporation waste heat outlet pipe (2) with the import of compression fan (5), the air inlet of continuous concentration evaporator (7)
Mouth is connected by continuous concentration evaporator steam line (6) with the outlet of compression fan (5).
2. citric acid concentration and evaporation system according to claim 1, it is characterised in that: multiple-effect evaporation waste heat outlet pipe
(2) steam supply pipeline (3) and valve (4) are connected on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822021896.8U CN209438074U (en) | 2018-12-04 | 2018-12-04 | A kind of citric acid concentration and evaporation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822021896.8U CN209438074U (en) | 2018-12-04 | 2018-12-04 | A kind of citric acid concentration and evaporation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209438074U true CN209438074U (en) | 2019-09-27 |
Family
ID=68013482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822021896.8U Active CN209438074U (en) | 2018-12-04 | 2018-12-04 | A kind of citric acid concentration and evaporation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209438074U (en) |
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2018
- 2018-12-04 CN CN201822021896.8U patent/CN209438074U/en active Active
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