CN104888479B - Modular MVR (mechanical vapor recompression) heat pump evaporation device - Google Patents
Modular MVR (mechanical vapor recompression) heat pump evaporation device Download PDFInfo
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- CN104888479B CN104888479B CN201510338763.1A CN201510338763A CN104888479B CN 104888479 B CN104888479 B CN 104888479B CN 201510338763 A CN201510338763 A CN 201510338763A CN 104888479 B CN104888479 B CN 104888479B
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- heat exchanger
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- cyclone separator
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Abstract
The invention relates to a modular MVR (mechanical vapor recompression) heat pump evaporation device and belongs to the technical field of evaporation and energy saving facilities. The device comprises a heat pump circulating system formed by a preheater, a heat exchanger, a cyclone separator, a compressor and a condensate box through communication pipelines, wherein the heat pump circulating system is mounted in a mounting frame forming a cubic cabinet. The device has significant advantages of small size and simple deployment, the device is a modular integrated device, field construction is changed into factory manufacturing, the construction period can be greatly shortened, and the quality can be guaranteed; a user is only required to order an integrated block and assemble pipelines for use, and the station building and debugging time is greatly saved.
Description
Technical field
The present invention relates to a kind of vaporising device, especially a kind of modularization MVR thermo-compression evaporation devices, belong to evaporation and energy-conservation
Facility technology field.
Background technology
MVR is writing a Chinese character in simplified form for English " Mechanical Vapor Recompress ion ", Chinese full name " mechanical steam
Recompression evaporator ", as environmentally friendly, the efficient energy saver of one kind, in recent years the fields such as chemical industry, the energy application increasingly
Extensively.But, according to the applicant understood, existing MVR thermo-compression evaporations plant operator skill is complicated at present, control cumbersome, floor space
Greatly, equipment investment is high, it usually needs assembled at the scene using unit, does not have set of integrated device, and production and maintenance are very
Inconvenience, while also increasing equipment investment and processing cost.Therefore, it is necessary to make improvements.
Retrieval finds that the Chinese patent application of Application No. 201210592964.0 discloses a kind of MVR thermo-compression evaporations system
System, it includes water vapor pressure compression system, evaporator, separator, energy storage water tank and residual neat recovering system, and the steam of energy storage water tank goes out
Steam inlet of the steam (vapor) outlet of mouth and separator with water vapor pressure compression system is connected, the steam (vapor) outlet of water vapor pressure compression system
It is connected with the steam inlet of evaporator, the steam (vapor) outlet of evaporator is connected with the steam inlet of separator, the stoste of evaporator enters
Mouth and concentrated solution outlet are connected with residual neat recovering system.Additionally, the Chinese patent application of Application No. 201310103497.5
A kind of positive displacement compressor MVR thermo-compression evaporation systems of pressure ratio climatic conditioning are disclosed, it includes feed pump, preheating device, divides
Level evaporator, positive displacement water compressor, separator, circulating pump, condensation water tank and discharging pump, the condensed water of stage evaporation device bottom
Secondary preheating can be carried out to fresh feed liquid.Further, the Chinese patent application of Application No. 201310239218.8 discloses a kind of MVR
Vapo(u)rization system, its evaporator uses horizontal tube evaporator, horizontal tube evaporator to be surrounded by housing and constitute sealed internal chamber, and inner chamber is by two tube sheets
Be divided into vaporization chamber, distribution cavity and reclaim chamber, condensation tube bank it is horizontally disposed in vaporization chamber and connect distribution cavity and reclaim chamber,
Film-distributing device is located at and condenses tube bank top, and vaporization chamber bottom sets concentrated solution outlet, and distribution cavity and recovery bottom of chamber portion set condensation
Water out；Be provided with the outside steam inlet tube with distribution cavity of connection, connect outside steam outlet pipe with vaporization chamber, steam goes out
Demister is provided with mouth pipe.
Above-mentioned prior art not only has that system architecture is not compact enough, install and use convenience and security is not good enough lacks
Point, and due to needing the high energy consumption device by compressor, circulating pump etc to realize heat pump cycle, what is had also needs to electrical heating
Device, therefore high energy consumption, efficiency are low.
The content of the invention
Primary and foremost purpose of the invention is the shortcoming for overcoming above-mentioned prior art, there is provided a kind of compact conformation, it is safe and reliable,
Modularization MVR thermo-compression evaporation devices easy to use.
Further aim of the present invention is to propose a kind of modularization MVR thermo-compression evaporations dress that can significantly reduce energy consumption
Put.
In order to reach above-mentioned primary and foremost purpose, the present invention is achieved by the following technical programs：
A kind of modularization MVR thermo-compression evaporation devices, containing by preheater, heat exchanger, cyclone separator, compressor, cold
The heat pump circulating system that lime set case is made up of connecting pipeline, it is characterised in that：The heat pump circulating system is installed in be formed
In the installation frame of cube cabinet.Specifically, the preheater is placed on the base plate in the corner of installation frame one, and the heat is handed over
Parallel operation support is placed in preheater adjacent angular drop height in the position of preheater, and the cyclone separator support is placed in installing frame
In the middle part of frame and higher than the position of heat exchanger, the motor of the compressor is arranged on installation frame away from preheater and heat exchanger
On base plate in the middle of side, the motor upper support disposes compressor, and the condensation liquid case is placed in heat exchanger and compression
On base plate between machine.
It can be appreciated that the present invention has small volume, simple remarkable advantage is disposed, due to modular integrated as one
Device, batch production manufacture is changed into by site operation, is substantially shorter the duration and is ensured quality；User need to only order one it is integrated
Block, mixes pipeline and can be used, greatly save build a station, debug time.
In order to reach further purpose, the outlet of the preheater is connected to whirlwind by pipeline through the tube side of heat exchanger
The whirlwind entrance of separator bottom, the middle and upper part of the cyclone separator is connected to the compressor after filter layer by gas outlet
Import, the bottom of the cyclone separator connects the tube side import of heat exchanger by pipeline, and the outlet of the compressor is by pipe
Road is connected to the top inlet of cyclone separator through the shell side of heat exchanger, and the leakage fluid dram of the heat exchanger shell side is connected to described cold
Lime set case, the bottom of the heat exchanger tube side is provided with leakage fluid dram, and the leakage fluid dram of the condensation liquid case is by changing in preheater
Pipe line is discharged.
During work, heating cycle is initially entered, stoste to be concentrated enters heat exchanger after pre-heater, using system
Interior air is heated via shell heat exchanger journey is entered after roots blower temperature-pressure to heat exchanger tube side stoste, is exchanged heat
Air afterwards enters roots blower circulating-heating after reaching cyclone separator top by the road, treats heat exchanger tube side stoste temperature
When reaching evaporating temperature, system enters concentration operating mode.During into concentration operating mode, enter after the preheated device preheating of stoste to be concentrated
Heat exchanger tube side, therein to vaporize composition heating vaporization and realize gas-liquid separation into cyclone separator, liquid returns to heat and hands over
Parallel operation tube side, gas componant enters compressor through filtering, through heat exchanger shell side and heat exchanger tube side liquid after increasing temperature and pressure
Condensed after heat exchange and enter condensation liquid case, and vaporization enters back into cyclone separator top after heat exchanger shell side liquid heat exchange, constantly
Circulation.The heat pump circulating system for so being formed can not only realize the concentration of infusion fluid by heat exchange circulation, and heat is handed over
Parallel operation can realize back liquid higher than condensation liquid case by gravity, and compressor outlet is connected through heat exchanger shell side with condensation liquid case
The pressure-fired for making it have can make its discharge liquor flow through preheater automatically to be then exhausted from, be not only effectively utilized contained by discharge liquor
Heat, and without separately adding transfusion power, rationally utilize pressure difference and gravitational difference to realize evaporation, separate hence in so that the present invention has
The self-loopa of flow, energy consumption is low, efficiency high remarkable advantage.Simultaneously as the shell side of heat exchanger is connected to cyclone separator
Top inlet, then compressor is connected to by its gas outlet, hence in so that pressure oscillation when system works is small, heat pump circulation is steady
It is fixed.
Further improving of the invention is that the condensation liquid case is additionally provided with the cooling by controlling valve to be connected to compressor inlet
Pipeline, therefore the temperature of regulation and control compressor when needed, can be cooled down.
The present invention is further improved, and the top of the condensation liquid case is also connected to heat exchanger through three ventilation pressure valves
Shell-side outlet pipeline, so can make its operation more stable by valve regulation and control condensation liquid case and the air pressure of assistant regulating and controlling system.
The present invention is further improved, and the bottom of the heat exchanger and the top of cyclone separator set spray
Pipeline, so as to can easily be cleaned when needed.
Brief description of the drawings
With reference to specific embodiment and its accompanying drawing, the present invention is described in more detail.
Fig. 1 is the general structure schematic diagram of one embodiment of the invention.
Fig. 2 is the system flow schematic diagram of Fig. 1 embodiments of the present invention.
Wherein, 1- installation frames, 2- electric-control systems, 3- motors, 4- steam pulse damper, 5- metal bellows, 6- pressures
Contracting machine, 7- condensations liquid case, 8- cyclone separators, 9- heat exchangers, 10- preheaters, 11- atomizers.
Specific embodiment
The present invention is described further below in conjunction with the accompanying drawings.
The modularization MVR thermo-compression evaporations device of the present embodiment as shown in Figure 1, mainly by preheater 10, heat exchanger 9,
Cyclone separator 8, compressor 6, condensation liquid case 7 are installed in form a cube cabinet by the heat pump circulating system that connecting pipeline is constituted
In the installation frame 1 of body.Compare by many weighing and considering for layout scheme, its specific placement takes：Preheater
10 are placed on the base plate in the corner of installation frame 1 one, and the support of heat exchanger 9 is placed in the adjacent angular drop height of preheater 10 in preheating
The position of device.The support of cyclone separator 8 is placed in the middle part of installation frame 1 and higher than the position of heat exchanger 9, the electricity of compressor 6
Machine 3 is arranged on installation frame 1 away from the base plate in the middle of preheater 10 and the side of heat exchanger 9.The top of motor 3 is by support branch
Support placement compressor 6, condensation liquid case 7 is placed on the base plate between heat exchanger 9 and compressor 6.Set in installation frame 1 every
Thermosphere；Electric-control system 2 is located at the side of installation frame 1, for controlled motor, operated pneumatic valve and instrument monitoring, is capable of achieving long-range
Monitoring.So not only compact conformation, while connecting line is shorter, each device of system adverse effect each other is small, makes original
It is separated from each other, separately installed each several part turns into a single unit system for combination, therefore can be manufactured before dispatching from the factory and base
This assembling is finished, and job site need to only install the modular unit being integrated with, very convenient, is greatlyd save installation, is adjusted
The examination time.
For effective reducing energy consumption, the heat pump circulating system of the present embodiment is as shown in Fig. 2 the outlet of preheater 10 is by pipe
Road is connected to the whirlwind entrance of the bottom of cyclone separator 8 through the tube side of heat exchanger 9.The middle and upper part of cyclone separator 8 is by three layers
The import of compressor 6 is connected to after filtering layer by gas outlet.The bottom of cyclone separator 8 is entered by the tube side that pipeline connects heat exchanger 9
Mouthful.The shell side exported by being connected to heat exchanger 9 after steam pulse damper 4 by metal bellows 5 of compressor 6, then by
The shell-side outlet of heat exchanger 9 is connected to the top inlet of cyclone separator 8.The leakage fluid dram of the shell side of heat exchanger 9 is through control valve
Condensation liquid case 7 is connected to, the leakage fluid dram for condensing liquid case 7 is discharged by the U-shaped countercurrent flow pipeline in preheater.Condensation liquid case 7 sets
There is the cooling line that the import of compressor 6 is connected to by corresponding control valve.The top for condensing liquid case 7 is also connected to heat through three ventilation pressure valves
The shell-side outlet pipeline of exchanger 9, to regulate and control the air pressure of condensation liquid case and assistant regulating and controlling system, it is ensured that its is stable.Heat
The tube side bottom of exchanger 9 is provided with leakage fluid dram, for the waste liquid discharge that will be concentrated.
Deflection plate and spiral board and wire mesh demister, the bottom of heat exchanger 9 and whirlwind point are set in cyclone separator 8
The spray pipeline for de-bubble or cleaning is respectively provided with every metafiltration layer of device 8, the spray pipeline is provided with atomizer 11.
During operation, enter shell heat exchanger journey to heat exchange after air in system enters compressor increasing temperature and pressure first
Device tube side stoste is heated, and the air after heat exchange enters cyclone separator top by pipeline, then reenters compressor,
Stoste in such circulating-heating heat exchanger, reaches evaporating temperature；Under normal concentration operating mode, stoste preheating to be concentrated reaches
Enter the high temperature gas heat exchange of shell side with after compression in the heat exchanger tube side after predetermined temperature, start to evaporate flow, stoste
In water is vaporized into steam, enter back into cyclone separator gas-liquid separation, the liquid isolated returns to heat exchange under gravity
The tube side of device, continues cycling through together with the stoste to be concentrated from preheater.The steam isolated then is extracted out by compressor and pressed
Contracting heats up, and then as the thermal source of heat exchanger shell side.After the indirect steam that these compressions heat up enters heat exchanger, in pipe
The heating surface bank external cause heat exchange of journey and lasting condensation, condensate liquid flow into condensation liquid case, enter back into original of the preheater to firm input
Liquid is discharged after being heated, and it is then compressor moisturizing separately to have a small amount of condensate liquid, regulates and controls its operating temperature.
Compared with prior art, the device of the present embodiment has following features：
1) modularized design forms integrating device, and all devices and control system are integrated on installation frame；
2) cyclone separator is provided with difference in height with heat exchanger, realizes the self-loopa of evaporation separation process；
3) bottom inlet (steam inlet) of cyclone separator is connected with tube side (indirect steam) outlet of heat exchanger, steams
Vapour sucks cyclone separator naturally by negative pressure；
4) bottom liquid outlet of cyclone separator is connected with heat exchanger tube side entrance, and the liquid isolated is leaned on from density current
Returning heat-exchanger；
5) deflection plate, spiral board and wire mesh demister are set in cyclone separator, helps to strengthen vehicle repair major mixture
Separating effect；
6) cyclone separator has defoaming function, defoamer uniformly to be sprayed into by atomizer after entering separator, to eliminate
The foam produced during gas-liquid separation；And detergent line can uniformly be sprayed into deionized water by atomizer, in case cleaning whirlwind
Separator and heat exchanger fouling are blocked；
7) compressor is in addition to indirect steam is heated, also with keeping the effect that is carried out under subnormal ambient of evaporation process；
8) entrance and exit of compressor is respectively provided with metal bellows, with preferably every vibrating effect；
9) compressor is provided with water pipe, and a small amount of condensate liquid in condensation liquid case can be filled on demand；
10) heat exchanger is vertical tube-type heat exchanger, is provided with on-condensible gas pipeline, can be inside blowdown exchanger not
Solidifying gas, bottom is provided with conical discharge mouthful, and waste liquid is discharged by deadweight；
11) preheater uses adverse current U-tube heat exchanger, recyclable waste heat to improve efficiency；
It is summed up, the remarkable advantage of the present embodiment is：The original each separation equipment part of system is made modular collection
Into device, small volume is mixed pipeline and be can be used, and a large amount of saving are built a station, debug time, are greatly shortened the duration and are advantageously ensured that
Installation quality；Arranged by rational equipment and structure design, using pressure difference and gravity realize evaporation, separation process from
Circulation；Safe and reliable to operation, heating efficiency is high, energy consumption is small, running cost is low；It is remote controlled, it is applicable not only to commonly use
Medium, is also applied for the treatment to special media (such as poisonous, with radiation danger medium), has a wide range of application.
The above embodiments merely illustrate the technical concept and features of the present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this that it is not intended to limit the scope of the present invention, people in the art
Member is under the enlightenment of the technology of the present invention marrow, it is also possible to make other changes, all use equivalents or equivalent transformation and shape
Into all technical schemes, be within the scope of the present invention.
Claims (3)
1. a kind of modularization MVR thermo-compression evaporation devices, containing by pre-heater, heat exchanger, cyclone separator, compressor, cold
The heat pump circulating system that lime set case is made up of connecting pipeline, it is characterised in that：The heat pump circulating system is installed in be formed
In the installation frame of cube cabinet；The pre-heater is placed on the base plate in the corner of installation frame one, the heat exchanger branch
Support is placed in pre-heater adjacent angular drop height in the position of hot heater, and the cyclone separator support is placed in installation frame
Middle part and higher than the position of heat exchanger, the motor of the compressor is arranged on installation frame away from pre-heater and heat exchanger
On base plate in the middle of side, the motor upper support disposes compressor, and the condensation liquid case is placed in heat exchanger and compression
On base plate between machine；The outlet of the pre-heater is connected to cyclone separator bottom by pipeline through the tube side of heat exchanger
Whirlwind entrance, the middle and upper part of the cyclone separator is connected to the import of the compressor, the rotation after filter layer by gas outlet
The bottom of wind separator connects the tube side import of heat exchanger by pipeline, and the outlet of the compressor passes through pipeline through heat exchanger
Shell side be connected to the top inlet of cyclone separator, the leakage fluid dram of the heat exchanger shell side is connected to the condensation liquid case, described
The leakage fluid dram for condensing liquid case is discharged by the heat exchanging pipe in pre-heater；The condensation liquid case is additionally provided with and is connected to by controlling valve
The cooling line of compressor inlet.
2. modularization MVR thermo-compression evaporation devices according to claim 1, it is characterised in that：The top of the condensation liquid case
The shell-side outlet pipeline of heat exchanger is also connected to through three ventilation pressure valves.
3. modularization MVR thermo-compression evaporation devices according to claim 2, it is characterised in that：The bottom of the heat exchanger
And the top of cyclone separator sets spray pipeline.
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| CN201510338763.1A CN104888479B (en) | 2015-06-17 | 2015-06-17 | Modular MVR (mechanical vapor recompression) heat pump evaporation device |
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| CN201510338763.1A CN104888479B (en) | 2015-06-17 | 2015-06-17 | Modular MVR (mechanical vapor recompression) heat pump evaporation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106807098A (en) * | 2016-12-27 | 2017-06-09 | 中山市中环环保废液回收有限公司 | A kind of low-temperature evaporation equipment |
| CN109603183A (en) * | 2019-01-25 | 2019-04-12 | 常州科滤水处理科技有限公司 | A kind of skid-mounted type single screw compressor MVR evaporator |
| CN114906894A (en) * | 2022-05-31 | 2022-08-16 | 广州市心德实业有限公司 | MVR steam-free starting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204910815U (en) * | 2015-06-17 | 2015-12-30 | 航天晨光股份有限公司 | Modularization MVR heat pump evaporation device |
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| DE10358015A1 (en) * | 2003-12-11 | 2005-07-14 | Gea Wiegand Gmbh | evaporation |
| US8460553B2 (en) * | 2007-06-25 | 2013-06-11 | Houghton Technical Corp. | Recovery by vapor recompression of industrial process fluid components |
| CN104069642B (en) * | 2013-03-28 | 2015-12-23 | 中国科学院理化技术研究所 | The positive displacement compressor MVR thermo-compression evaporation system of pressure ratio climatic conditioning |
| CN103908789A (en) * | 2014-04-02 | 2014-07-09 | 江苏科化节能环保设备有限公司 | MVR (mechanical vapor recompression) heat pump vaporization system for accelerating to start up by adopting energy accumulation water tank |
| CN104692477B (en) * | 2015-02-26 | 2016-09-28 | 江苏新纪元环保有限公司 | Integral structure water processes low-temp low-pressure vaporizer |
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| CN204910815U (en) * | 2015-06-17 | 2015-12-30 | 航天晨光股份有限公司 | Modularization MVR heat pump evaporation device |
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Address after: 211100 No. 188 middle Tianyuan Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee after: AEROSUN Corp. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: 211100 No. 188 middle Tianyuan Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: AEROSUN Corp. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address after: 211100 No. 188 middle Tianyuan Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee after: AEROSUN Corp. Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: 211100 No. 188 middle Tianyuan Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: AEROSUN Corp. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |