High-Concentration Wastewater MVR Evaporator
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Efficient treatment of different types of solutions
- MVR evaporators
MVR evaporators are used in the manufacturing industry and in various industries. The introduction of evaporation equipment into production helps to save resources and reduce costs: clean distilled water is returned to production, and less money is needed for waste treatment. MVR evaporators can be used for liquid treatment in plants producing inorganic salts, nitrogen fertilizers, paint and varnish industry, electroplating production, pharmaceuticals and confectionery factories. The technology can significantly reduce the amount of waste treatment.
What can MVR evaporators bring?
- Provides evaporation of solutions with a wide range of capacities.
- There is no waste heat steam discharge, and the energy saving effect is very significant.
- Reduced energy costs compared to single-shell units.
- Only a very small amount of raw steam is required.
- Fully automatic operation, continuous operation.
Introduction to high concentration wastewater MVR evaporator
The high-concentration wastewater MVR evaporator is an advanced evaporation equipment using high-efficiency steam mechanical recompression technology (Mechanical Vapor Recompression, referred to as MVC), which is specially used to treat high-concentration industrial wastewater. By recompressing the secondary steam generated during the evaporation process and recovering its energy, this technology significantly reduces the demand for external energy and achieves high efficiency and energy saving.
In the high-concentration wastewater MVR evaporator, the evaporated secondary steam is recompressed by a mechanical compressor (or fan), thereby increasing its enthalpy value. These high-enthalpy steam are then returned to the heating chamber as a heat source to heat the high-concentration wastewater to be treated, and are then discharged after being condensed into water. The high-concentration wastewater that has been vaporized and concentrated is finally converted into final products, achieving effective recovery of resources and reduction of wastewater.
High concentration wastewater MVR evaporator composition
The high-concentration wastewater MVR evaporation system consists of evaporators, separators, compressors, vacuum pumps, circulation pumps, operating platforms, electrical instrument control cabinets, valves, pipelines and other major components, forming a complete and efficient evaporation system.
Features of high concentration wastewater MVR evaporator
1. The high-concentration wastewater MVR evaporator only requires a very small amount of steam, which can significantly reduce operating costs and reduce environmental pollution. There is no waste heat steam emission, and the energy saving effect is very significant.
2. A compressor is used to provide the heat source. Compared with traditional evaporators, the temperature difference is smaller, enabling gentle evaporation, greatly improving product quality and reducing scaling.
3. The equipment has a simple structure, optimized process design, supports fully automatic operation, can operate continuously, and is safe and reliable.
4. Built-in CIP cleaning pipeline enables on-site cleaning. The equipment is easy to operate and there are no dead ends.
5. All materials suitable for single-effect and multi-effect evaporators are suitable for treatment with high-concentration wastewater MVR evaporators. They are technically completely replaceable and have better environmental protection and energy-saving characteristics.
High concentration wastewater MVR evaporator component:
This device is mainly made up of preheating element, evaporator body, liquid gas separator, steam compressor, and core parts such as condenser. The components work together to complete efficient evaporator for high bod sewage. High concentration wastewater MVR evaporator advantages:
High efficiency and energy saving: vapor compression technology greatly reduces external energy needs and saves energy consumption.
Environmental Performance: no additional chemicals are required during processing, reduces the ability to secondary pollution.
High automation level: equipped with PLC control system to achieve high automation operation and reduce labor cost.
High application: can deal with high bod sewage with different ingredients and concentration, with good adaptation.
Considerable economic benefits: while saving energy, it can also collect soluble impurities from waste water and increasing economic benefits.
High concentration wastewater evaporator application area: This equipment is widely used in food processing, wine making, paper making, printing and dyeing, chemical industry, Particularly suitable for treatment of high-concentration organic waste water containing biodegraded organic agent.
Technical principle of
MVR steam mechanical recompression technology is the abbreviation of mechanical vapor recompression technology. MVR evaporator is an energy-saving technology that reuses the energy of the secondary steam it produces, thereby reducing the demand for external energy.
MVR evaporator uses a mechanical compressor (or fan) to recompress the evaporated secondary steam to increase its enthalpy value. The secondary steam with increased enthalpy value is sent to the heating chamber again as a heat source to heat the feed, and its own exothermic phase changes into condensed water and is discharged. The heated material is discharged from the system as the final product after vaporization and concentration.
The production process of
MVR system evaporation process:
A. Feeding process:
The wastewater raw liquid is sent to the preheating system through the feed pump to exchange heat with distilled water for heating, and the heated wastewater raw liquid enters the separator.
B. Evaporation process:
After entering the separator, the wastewater raw liquid is sent to the heater through the circulating pump, and heat is exchanged with the high-temperature secondary steam. The secondary steam condenses into water and enters the distilled water tank. The circulating liquid absorbs the heat of the steam, flashes in the separator, and separates the gas and liquid. The concentrated liquid is returned to the evaporator by the circulating pump to continue evaporation until the predetermined concentration is reached.
C. Discharging process:
When the predetermined evaporation concentration is reached, the system controls the discharging.
Non-condensable gases are automatically discharged through system control.
D. Drainage process:
The distilled water temporarily stored in the distilled water tank is transported to the preheating system through the distilled water pump, exchanges heat with the wastewater raw liquid for cooling, and then is sent out of the system.
Production of equipment
The company "WTEYA" has been engaged in the design and manufacture of a range of evaporation equipment for more than ten years. With the help of evaporation equipment, the problem of wastewater treatment by dehydration can be effectively solved.
Introducing evaporation equipment into production helps save resources and reduce costs: clean distilled water returns to production, and less money is needed for waste treatment. Various models of evaporation equipment, if you need, we can customize, OEM&ODM service.
MVR evaporator costing
How much does a Mechanical Vapor Recompression evaporator cost? In order to calculate the cost accurately, we recommend that you fill out a questionnaire and then we will be able to prepare a commercial offer, taking into account all the features of your project. We are always ready to provide you with detailed information about the different models, their technical characteristics, performance. We offer a full range of services, from advice and assistance in selecting equipment to its supply, installation and configuration. Our goal is to provide you with the necessary equipment to effectively solve the water treatment problem in your specific situation.
So, you need to email us at info@wteya.com
Our manager will prepare an excellent quote for you
Capacity and size
|
MVR system parameter board |
|||||
|
Evaporator (T/h) |
Evaporative way to make |
Total energy (kW/h) |
Steam consumption (T/h) |
Reuse water consumption (T/h) |
Area of the (length, height/m) |
|
0.5 |
MVR, loop required |
70 |
0-0.03 |
10 |
6*3*5 |
|
1 |
MVR, loop required |
110 |
0-0.05 |
10 |
9*8*6 |
|
1.5 |
MVR, loop required |
180 |
0-0.05 |
20 |
12*7.5*9 |
|
2 |
MVR, loop required |
213.5 |
0-0.1 |
30 |
12*8*10 |
|
3 |
MVR, loop required |
275 |
0-0.1 |
50 |
15*8*15 |
|
5 |
MVR, loop required |
425 |
0-0.2 |
50 |
15*10*15 |
|
7.5 |
MVR, loop required |
580 |
0-0.3 |
70 |
15*12*15 |
|
10 |
MVR, loop required |
815 |
0-0.3 |
100 |
12*6*18 |
|
Temperature panel parameters |
|||||
|
Evaporator (T/h) |
Heat exchanger type |
Specification (specification) |
The material is material |
Qty of the quantity |
Used to have |
|
0.5 |
Two horizontal pipe, Circulation required round |
S = 50m ², galls 500 × 6000 × 5mm |
TA2 |
1 |
|
|
1 |
Two horizontal pipe, Circulation required round |
S = 100m ², Nils 650 × 6000 × 5mm |
TA2 |
1 |
|
|
1.5 |
Two horizontal pipe, Circulation required round |
S = 150m ², galls 800 × 6000 × 5mm |
TA2 |
1 |
|
|
2 |
Two horizontal pipe, Circulation required round |
S = 200m ², Nils 800 × 5mm |
TA2 |
1 |
|
|
3 |
Two horizontal pipe, Circulation required round |
S = 260m ², galls 1000 × 6000 × 5mm |
TA2 |
1 |
|
|
5 |
Two horizontal pipe, Circulation required round |
S = 450m ², Nils 1300 × 6000 × 6mm |
TA2 |
1 |
|
|
7.5 |
Two horizontal pipe, Circulation required round |
S = 650m ², Nils 1500 × 6000 × 6mm |
TA2 |
1 |
|
|
10 |
Two horizontal pipe, Circulation required round |
S = 880m ², Nils 1800 × 6000 × 8mm |
TA2 |
1 |
|
Chart of effect chart
Frequently Asked Questions
Q: MVR forced evaporator to run?
Cause: could be the corrosion of secondary steam pipes or steam compressors, pure water quality does not meet the standards, or at the point of equipment such as welding, flange, sealing, expansion, and so on.
Solution: ensure water quality into standards, regularly cleaning the system, maintain stable cooling water temperature, and provide a complete amount of cooling water.
Q: The steam reduction charged by MVR?
Cause: could be due to system clogging or dirt in the hot water catheter.
Solution: do online purification programs for cleaning dirt.
Q: The effect of steam valve charged by MVR?
Cause: The material is processed after thickening, crystally, resulting in clogging.
Solution: The Prevention includes regular filter of salt and spray as well, once stuck, use juice or vacuum treatment.
Q: MVR compulsory evaporator effect?
Expression: Produces regular and loud sound, vibrates the pipes.
Solution: constant current stability compressor when counter rate is soft and open the valve through the appropriate rate; counter rate need to close the compressor immediately for testing, pay attention to liquid temperature to avoid counter rate.
Q: cool MVR evaporator don't work properly?
Cause: could be due to too thick dust, or vacuum drop.
Solution: add agent foaming agent, check detector and dehumidifying liquid, import steam valve adjustment, vacuum control.
| S/N | Single effect evaporator | Multi effect evaporator | TVR evaporator | MVR evaporator |
|---|---|---|---|---|
| Energy source | Using steam heating Steam pipe network Need boiler |
Using steam heating Steam pipe network Need boiler |
Need high pressure steam to drive, Need boiler |
Using electric power, no need steam pipe network close loop circulation system |
| Energy consumption | 1 tons steam for 1ton water evaporation | 0.3~1tons steam for 1ton water evaporation | Based on traditional multi effect, one more effect is used with high pressure steam drive | The most energy saving technology at present |
| Operation cost | Much higher | More energy saving | Lower | Lowest |
| Footprint | smaller | bigger | bigger | smaller |
| Product quality | Short residence time, Bigger temp. difference lead to easy scale. product quality not stable |
Longer residence time, Bigger temp. difference lead to easy scale. product quality not stable |
Short residence time, Smaller influence on product quality |
Short residence time, Low temp. evaporation, Minimum impact on product quality |
| Control type | Semi-automatic | Full automatic Uninterrupted evaporation |
Full automatic Uninterrupted evaporation |
Full automatic Uninterrupted evaporation |