CN209428169U - A kind of MVR concentration and evaporation system - Google Patents
A kind of MVR concentration and evaporation system Download PDFInfo
- Publication number
- CN209428169U CN209428169U CN201822157349.2U CN201822157349U CN209428169U CN 209428169 U CN209428169 U CN 209428169U CN 201822157349 U CN201822157349 U CN 201822157349U CN 209428169 U CN209428169 U CN 209428169U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- evaporator
- tank
- preheater
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of MVR concentration and evaporation system, including head tank, raw material pump is provided on the discharge pipe of head tank；Head tank is pumped by raw material to be connected with level-one preheater；Level-one preheater is connected by second level preheater with evaporator；The outlet end of evaporator is connected by pipeline with the liquid feeding end of waste liquid tank；The high-temperature condensation water of waste liquid tank is back to circulating and evaporating in level-one preheater by pipeline；The discharge end of evaporator is connected with crystallizer is separated；Separation crystallizer is connected by forced circulation pump with evaporator；The top outlet side of separation crystallizer is connected by pipeline with the inlet end of vapour compression machine；The discharge end of separation crystallizer is connected with centrifuge；The outlet end of centrifuge is connected by pipeline with the liquid feeding end of concentration tank.The utility model not only alleviates the load of vapour compression machine, but also reduces the operation power consumption of vapour compression machine, to reduce the whole energy consumption of MVR system, has wide applicability.
Description
Technical field
The utility model relates to a kind of vapo(u)rization system more particularly to a kind of MVR concentration and evaporation systems.
Background technique
Waste component is complicated in the industries such as petroleum, chemical industry, pharmacy, plating, enormous amount, although using biochemistry, electrodialysis,
Most of water body qualified discharge can be achieved after the methods of reverse osmosis processing, but part high-concentration hardly-degradable Industrial Wastewater Treatment is still
It is technological difficulties, it is comparatively ideal technical method that inorganic salts in waste water, which are separated removal, using the method for evaporative crystallization.Traditional
There is the problems such as energy consumption is high, the device is complicated, cost for wastewater treatment is high in reaction kettle, single effect evaporation, multi-effect evaporation system etc., utilize
MVR technical treatment high-concentration hardly-degradable waste water is technique direction.Traditional MVR system only includes evaporator, separator, vapor
Compressor and other ancillary equipments.When high slat-containing wastewater is concentrated into nearly saturation, often there is part in existing MVR device separator
Inorganic salts crystallization, causes heat exchanger or line clogging, influences system effectiveness and reliability.
MVR (mechanical steam recompression technology) is that secondary steam is carried out recompression by mechanical vapor compressor to mention
High enthalpy, the heat source being then concentrated as weak solution in evaporator.But MVR system in the prior art has the disadvantage in that
The secondary steam separated from vapour liquid separator is compressed and improves its enthalpy by vapour compression machine needs.Vapour compression machine is inhaled
When port and larger exhaust outlet steam temperature rise, the overload of compressor will lead to, and keep vapour compression machine operation power consumption high,
MVR system integrally consumes energy height.
Utility model content
In order to solve shortcoming present in above-mentioned technology, the utility model provides a kind of MVR concentration and evaporation system.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of MVR concentration and evaporation system,
Including head tank, it further includes vapour compression machine, vapour liquid separator；Raw material pump is provided on the discharge pipe of head tank；Raw material
Tank is pumped by raw material to be connected with level-one preheater；Level-one preheater is connected by second level preheater with evaporator；Evaporator
Outlet end be connected by pipeline with the liquid feeding end of waste liquid tank；It is pre- that the high-temperature condensation water of waste liquid tank by pipeline is back to level-one
Circulating and evaporating in hot device；The steam output end of waste liquid tank is connected with the admission end of condenser；Condenser passes through pipeline and vacuum pump set
It is connected；The liquid outlet of waste liquid tank is connected with the water inlet of water circulating pump；
The discharge end of evaporator is connected with crystallizer is separated；Separation crystallizer is connected by forced circulation pump with evaporator
It connects；The top outlet side of separation crystallizer is connected by pipeline with the inlet end of vapour compression machine；Vapour compression machine passes through vapour
Liquid/gas separator is connected with evaporator；
The discharge end of separation crystallizer is connected with centrifuge；Crystal salt is discharged in the discharge end of centrifuge；Centrifuge goes out
Liquid end is connected by pipeline with the liquid feeding end of concentration tank；The outlet of concentration tank is connected by pipeline with the feed inlet of head tank
It connects.
The isolated secondary steam of separation crystallizer enters evaporation by vapour liquid separator after vapour compression machine is pressurized
Device.
It is provided on the connecting pipe of centrifuge and concentration tank by the concentrated water valve of concentrating spent liquor discharge system.
Condenser is connected by condensate water pot with vacuum pump set；Condensate water pot is connected with the condensed water that condensed water is discharged
Pump；The outlet pipeline of condensate pump is equipped with outlet valve；Vacuum pump set is connected at the top of condensate water pot；The outlet of vacuum pump set with
Atmosphere communicates.
The utility model not only alleviates the load of vapour compression machine, but also reduces the operation power consumption of vapour compression machine,
To reduce the whole energy consumption of MVR system, there is wide applicability.
Detailed description of the invention
Fig. 1 is that the overall structure of the utility model connects block diagram.
Specific embodiment
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
A kind of MVR concentration and evaporation system as shown in Figure 1, including head tank, it further includes vapour compression machine, vapor-liquid separation
Device；Raw material pump is provided on the discharge pipe of head tank；Head tank is pumped by raw material to be connected with level-one preheater；Level-one preheating
Device is connected by second level preheater with evaporator；The outlet end of evaporator is connected by pipeline with the liquid feeding end of waste liquid tank；
The high-temperature condensation water of waste liquid tank is back to circulating and evaporating in level-one preheater by pipeline；The steam output end of waste liquid tank and condenser
Admission end is connected；Condenser is connected by pipeline with vacuum pump set；The liquid outlet of waste liquid tank and the water inlet of water circulating pump
It is connected；
The discharge end of evaporator is connected with crystallizer is separated；Using forced-circulation evaporator, there is heat transfer coefficient height, steam
The advantages that sending out big intensity, reduction knot wall and plugging is particularly suitable for generating the material of crystal in evaporation process；Separate crystallizer point
Enter evaporator by vapour liquid separator after vapour compression machine is pressurized from obtained secondary steam.Separation crystallizer passes through pressure
Circulating pump is connected with evaporator；Using pump self-circulation system, crystal and mother liquor moment is made to keep circulation, avoid crystal settling stifled
Pipe.Separation crystallizer is connected with the forced circulation pump for being pumped to concentrating spent liquor again and being evaporated in evaporator.Discharging uses
Separator increases discharging crystalline content, most of crystal is obtained after separation, and mother liquor reflux is few, the thermal energy that needs to consume again
It is few, it is especially energy saving.
The top outlet side of separation crystallizer is connected by pipeline with the inlet end of vapour compression machine；Vapour compression machine is logical
Vapour liquid separator is crossed to be connected with evaporator；Vapour compression machine, which leads to plus sends out on the exhaust pipe of device, is provided with bypass high-temperature steam
Pipeline, bypass high temperature steam pipeline are equipped with steam valve.
The discharge end of separation crystallizer is connected with centrifuge；Crystal salt is discharged in the discharge end of centrifuge；Centrifuge goes out
Liquid end is connected by pipeline with the liquid feeding end of concentration tank；The outlet of concentration tank is connected by pipeline with the feed inlet of head tank
It connects.It is provided on the connecting pipe of centrifuge and concentration tank by the concentrated water valve of concentrating spent liquor discharge system.Evaporator, preheater and
Condenser tube plate is all made of integral tubesheet, extends the service life of equipment.
Condenser is connected by condensate water pot with vacuum pump set；Condensate water pot is connected with the condensed water that condensed water is discharged
Pump；The outlet pipeline of condensate pump is equipped with outlet valve；Vacuum pump set is connected at the top of condensate water pot；The outlet of vacuum pump set with
Atmosphere communicates.
The process flow of the utility model are as follows: raw material recycles condensate liquid by preheater by raw material pump from head tank and shows
Heat,
The waste water come out from head tank enters level-one preheater by raw material pump；Waste water successively passes through level-one preheater, two
Enter evaporator after grade preheater preheating heating；Solution passes through the bottom for dropping to evaporator in vaporization chamber, then passes through steam
Compressor is pumped into plate heat exchanger heating；Secondary steam in evaporator and separation crystallizer is moved upwards into both vapor compression
Machine, Returning evaporimeter shell side discharges latent heat after secondary steam is compressed to technological design temperature by vapour compression machine, and condensed water enters
In lime set collecting tank, the concentrate after evaporation enters separation crystallizer evaporative crystallization；The outlet end of evaporator is by pipeline and gives up
The liquid feeding end of flow container is connected；High-temperature condensation water in waste liquid tank is back to circulating and evaporating in level-one preheater by pipeline；It is useless
High-temperature steam in flow container enters condenser condensation, and condensed water is discharged condensate water pot by condensate pump；It is useless in waste liquid tank
Water is discharged by water circulating pump；Liquid-vapor mixture in evaporator enters separation crystallizer, separation crystallizer point by outlet end
Enter evaporator by vapour liquid separator after vapour compression machine is pressurized from obtained secondary steam；Separate crystallizer and evaporator
Between pass through forced circulation pump circulating liquid；The isolated solidliquid mixture of separation crystallizer is crystallized by centrifuge
Salt, isolated waste liquid enter concentration tank；Liquid in concentration tank enters head tank through feed pump.
The working principle of the utility model are as follows: the secondary steam come out from evaporator passes through the compression of vapour compression machine, pressure
Power and temperature increase, and heat content increases therewith, and the heating room for being sent to evaporator makes as the i.e. raw steam of heating steam source
With, so that feed liquid is maintained evaporating state, and heat steam and transfer heat to material itself and be condensed into water, in this way, to discard originally
Steam be just fully utilized, recycled latent heat, and improve the thermal efficiency.Its course of work is low-grade steam warp
Compressor compresses, temperature, pressure improve, and heat content increases, and condenses subsequently into condenser, to make full use of latent heat of the steam.
The utility model is discharged using separator, increases discharging crystalline content, and most of crystal, mother liquor are obtained after separation
Reflux less, the thermal energy that needs to consume again it is few, it is especially energy saving；Not only occupied area is small, is not limited by setting occasion, Er Qiecao
Make convenient for management, it is easy to accomplish automation；Using automatic Control Systems of Liquids Height, automatic feed, condensed water automatic-discharging；Using pump
Self-circulation system makes crystal and mother liquor moment keep circulation, avoid crystal settling plugging, can be widely applied to each Waste water concentrating and steams
Hair system.
Above embodiment is not limitations of the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made within the scope of the technical solution of the utility model,
Also the protection scope of the utility model is belonged to.
Claims (4)
1. a kind of MVR concentration and evaporation system, including head tank, it is characterised in that: it further includes vapour compression machine, vapor-liquid separation
Device；Raw material pump is provided on the discharge pipe of the head tank；Head tank is pumped by raw material to be connected with level-one preheater；It is described
Level-one preheater is connected by second level preheater with evaporator；The outlet end of the evaporator by pipeline and waste liquid tank into
Liquid end is connected；The high-temperature condensation water of the waste liquid tank is back to circulating and evaporating in level-one preheater by pipeline；Waste liquid tank
Steam output end is connected with the admission end of condenser；The condenser is connected by pipeline with vacuum pump set；Waste liquid tank goes out liquid
Mouth is connected with the water inlet of water circulating pump；
The discharge end of the evaporator is connected with crystallizer is separated；The separation crystallizer passes through forced circulation pump and evaporator
It is connected；The top outlet side of separation crystallizer is connected by pipeline with the inlet end of vapour compression machine；The both vapor compression
Machine is connected by vapour liquid separator with evaporator；
The discharge end of the separation crystallizer is connected with centrifuge；Crystal salt is discharged in the discharge end of the centrifuge；Centrifuge
Outlet end be connected by pipeline with the liquid feeding end of concentration tank；The outlet of the concentration tank passes through the charging of pipeline and head tank
Mouth is connected.
2. MVR concentration and evaporation system according to claim 1, it is characterised in that: the separation crystallizer is isolated
Secondary steam enters evaporator by vapour liquid separator after vapour compression machine is pressurized.
3. MVR concentration and evaporation system according to claim 2, it is characterised in that: the connection of the centrifuge and concentration tank
It is provided on pipeline by the concentrated water valve of concentrating spent liquor discharge system.
4. MVR concentration and evaporation system according to claim 3, it is characterised in that: the condenser by condensate water pot with
Vacuum pump set is connected；The condensate water pot is connected with the condensate pump that condensed water is discharged；The outlet pipe of the condensate pump
Road is equipped with outlet valve；Vacuum pump set is connected at the top of the condensate water pot；The outlet of the vacuum pump set is communicated with atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822157349.2U CN209428169U (en) | 2018-12-21 | 2018-12-21 | A kind of MVR concentration and evaporation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822157349.2U CN209428169U (en) | 2018-12-21 | 2018-12-21 | A kind of MVR concentration and evaporation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209428169U true CN209428169U (en) | 2019-09-24 |
Family
ID=67972767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822157349.2U Expired - Fee Related CN209428169U (en) | 2018-12-21 | 2018-12-21 | A kind of MVR concentration and evaporation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209428169U (en) |
-
2018
- 2018-12-21 CN CN201822157349.2U patent/CN209428169U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102616973A (en) | Method and device for processing high-saline organic wastewater | |
| CN111362492A (en) | Double-effect MVR evaporation treatment method | |
| CN106957122A (en) | It is a kind of to be used to handle the evaporative crystallisation process of brine waste and realize the device of this method | |
| CN106315717B (en) | A kind of MVR waste water evaporation concentration device | |
| CN104707350B (en) | A kind of steam-powered super gravity field enhanced water evaporation system | |
| CN113307433B (en) | Four-effect cross-flow pharmaceutical wastewater evaporation crystallization system with external replacement heater | |
| CN104014143A (en) | Multiple-effect evaporation system steam condensation water heat energy reutilizationoun device | |
| CN112093954A (en) | Concentration and separation device for air contact circulating wastewater | |
| CN209428169U (en) | A kind of MVR concentration and evaporation system | |
| CN211971803U (en) | Novel materialized wastewater triple-effect evaporation system | |
| CN211486555U (en) | MVR evaporation equipment adapting to fluctuation of material solution | |
| CN116282282A (en) | MVR evaporation system for wheat starch process wastewater | |
| CN215136953U (en) | Double-effect evaporation system | |
| CN212832917U (en) | Flue gas desulfurization waste water evaporation equipment | |
| CN213865455U (en) | Reclaimed water triple-effect evaporator | |
| CN213294703U (en) | Fly ash desalination system containing potassium chloride salt | |
| CN210261427U (en) | Concentration and separation device for air contact circulating wastewater | |
| CN104014144A (en) | Multiple-effect evaporation system evaporation condensation water heat energy reutilizationoun device | |
| CN210419326U (en) | High-efficient single-effect evaporation system of high salt waste water | |
| CN209507647U (en) | A kind of system based on MVR system clean waste water | |
| CN220745451U (en) | MVR evaporation crystallization drying system for high-salt wastewater | |
| CN105854339A (en) | MVR (mechanical vapor recompression) evaporative crystallizer with scale removing and preventing functions | |
| CN219001997U (en) | System for reduce MVR strong brine evaporation energy consumption | |
| CN217202398U (en) | MSR-NF divides salt crystal system | |
| CN218478566U (en) | High concentration sewage concentration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190924 Termination date: 20211221 |