CN207324105U - A kind of MVR vapo(u)rization systems - Google Patents
A kind of MVR vapo(u)rization systems Download PDFInfo
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- CN207324105U CN207324105U CN201720568577.1U CN201720568577U CN207324105U CN 207324105 U CN207324105 U CN 207324105U CN 201720568577 U CN201720568577 U CN 201720568577U CN 207324105 U CN207324105 U CN 207324105U
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- valve
- heat exchanger
- compression machine
- pipeline
- vapour compression
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Abstract
It the utility model is related to a kind of MVR vapo(u)rization systems, including vapour compression machine and cyclone separator and shell-and-tube heat exchanger；The outlet of vapour compression machine is connected to the tube side import of the exchanger base by the first pipeline equipped with the first valve, while the shell side import of the exchanger base is connected to by the second pipeline equipped with the second valve；The shell side of heat exchanger is equipped with the exhaust branch of the 4th valve, and the tube side outlet on the heat exchanger top is connected to cyclone separator separation import；The top separation outlet of cyclone separator and lower part isolate the tube side import that mouth is respectively connected to below the entrance and heat exchanger of vapour compression machine and directly heat pipeline, heat exchanging pipe, row on-condensible gas pipeline and water pipe etc. by rationally setting, it is used for feed liquid to be heated to evaporating temperature before operating mode is evaporated, the equipment such as electrical auxiliary heater in general MVR system flows, energy storage water tank, extraneous steam are abandoned, system structure is simplified, improves system stand-alone capability.
Description
Technical field
A kind of function of mechanical steam recompression (MVR) system is the utility model is related to, belongs to evaporation industry energy-saving technology.
Background technology
Function of mechanical steam recompression (MVR) system can recycle indirect steam, and only need to inject a small amount of energy can maintain
System operation, therefore have the advantages that energy-saving effect is notable, floor space is small.
Understand that related patents have through retrieval：A kind of utility model patent " MVR heat pumps of Publication No. CN 103908788A
Vapo(u)rization system ", the utility model patent " a kind of function of mechanical steam recompression vaporising device " that notification number is CN 202777833U, public affairs
The number of opening be CN 103908789A utility model patent " it is a kind of using energy storage water tank accelerate start MVR thermo-compression evaporations system ",
Notification number is utility model patent " single-action falling liquid film MVR vapo(u)rization systems ", the Publication No. CN of CN 203208704U
Utility model patent " air dielectric pipeline start up by preheating MVR vapo(u)rization systems ", the notification number of 104958917A is CN 203355311U's
Utility model patent " a kind of improved MVR evaporators ", utility model patent " a kind of MVR that notification number is CN 203540084U
Inspissator ", a kind of utility model patent " economic benefits and social benefits roots-type MVR falling film evaporation systems " of Publication No. CN 104162283A, public affairs
Accuse a kind of number utility model patent " self-loopa MVR thermo-compression evaporations system " for being CN 104922921A.
Applicant thinks that the above-mentioned pre- thermal efficiency of patented technology generally existing is low, time length, and system forms complicated deficiency
Part.
Utility model content
The shortcomings that technical problem to be solved in the utility model is, overcomes the prior art, there is provided one kind preheating is fast, efficiency
Height, energy consumption are low, and the MVR vapo(u)rization systems that structure is simple and direct.
In order to solve the above technical problems, the utility model provides a kind of MVR vapo(u)rization systems, including vapour compression machine and
Cyclone separator and shell-and-tube heat exchanger；It is characterized in that：The outlet of the vapour compression machine passes through first equipped with the first valve
Pipeline is connected to the tube side import of the exchanger base, while is connected to the heat exchanger by the second pipeline equipped with the second valve
The shell side import of bottom；The shell side of the heat exchanger is equipped with the exhaust branch of the 4th valve, the tube side on the heat exchanger top
Outlet is connected to cyclone separator separation import；The top separation outlet of the cyclone separator and lower part are isolated mouth and are respectively connected to
Tube side import below the entrance and heat exchanger of vapour compression machine；The entrance of the compressor is equipped with the moisturizing branch of the 3rd valve
Road；The outlet of the compressor is equipped with the first temperature sensor, and the exchanger base is equipped with second temperature sensor；It is described to change
After hot device tube side adds feed liquid start to be concentrated：
When the detection temperature of the second temperature sensor is less than feed liquid evaporating temperature to be concentrated, second valve closes
Close, the first valve opening, form compressed gas through the heat exchanger tube pass and cyclone separator from ramp cycle circuit, to material
Liquid is preheated；By adjusting the aperture of the 6th valve, can be used to control vapour compression machine inlet pressure, this pressure is become with pressure difference
Device is sent to characterize, so that indirect control preheating time.In warm, the pressure difference that pressure difference transmitter measures is bigger, vapour compression machine
Temperature rise is faster, and unit interval energy consumption is more, and preheating time is shorter, this valve should keep standard-sized sheet in evaporation process；
When the detection temperature of the second temperature sensor reaches feed liquid evaporating temperature to be concentrated, second valve is beaten
Open and the closing of the first valve, form compressed gas and exchange heat what is evaporated to maintain feed liquid through the heat exchanger shell pass and tube side feed liquid
Circuit；
When the detection temperature of first temperature sensor reaches setting value, the 3rd valve is opened, and is opened and is maintained
The water pipe of system normal operation, forms moisturizing and is converted into after water vapour with the medium that gas medium in system mixes by the
Two pipelines, heat exchanger shell side transfer heat to the heat cycles of tube side feed liquid.
The technical solution that the utility model further limits as：Further include the first non-return for being arranged on the 3rd valve water inlet
Valve.Further include the second check-valve before being arranged on first pipeline the first valve water inlet.Further include and be arranged on vapour compression machine
Pressure difference transmitter.
Further, the pressure transmitter being arranged on cyclone separator is further included.Further include and be arranged on cyclone separator
5th valve of upper inlet and the 6th valve in exit.Described first, second, third and the 5th valve be pneumatic operated valve
Door；Four, the 6th valve is manually-operated gate.
Present invention also provides the pre-heating mean of the MVR vapo(u)rization systems, it is characterised in that comprises the following steps：1) start and steam
Hair system, opens the first valve, when the detection temperature of the second temperature sensor is less than feed liquid evaporating temperature to be concentrated, steams
Feed liquid is stirred preheating in vapour compressor starts heat exchanging device tube side；Compressed gas is through the vapour compression machine, Tube Sheet of Heat Exchanger
Journey and cyclone separator circuit are carried out from ramp cycle；
2) when the detection temperature of first temperature sensor reaches 140 ° of setting value, the 3rd valve opening, leads to
Cross water pipe L03 and moisturizing cooling is carried out to vapour compression machine, to ensure that vapour compression machine is safe for operation；
3) when the detection temperature of the second temperature sensor reaches 90 ° of feed liquid evaporating temperature to be concentrated, described second
Valve is opened and the first valve is closed, in system medium after vapour compression machine acting heating by shell side and heat exchanger tube pass it
Between heat exchange maintain the feed liquid to be concentrated in tube side to evaporate；
4) after feed concentration to be concentrated reaches predetermined concentration concentration, bottom row of the concentration feed liquid through heat exchanger tube pass
Liquid mouth is discharged.
Further, in step 1), when pressure transmitter detects that pressure is down to setting value 70kPa in cyclone separator
(a) when, the 5th controlled opening of valve, air is supplemented to system；When pressure rises to more than setting value, then the 5th valve closes automatically
Close.
Further, in step 2), the detection temperature of second temperature sensor reaches 90 ° of feed liquid evaporating temperature to be concentrated
And during the above, the gas and vapor blending agent of feed liquid evaporation to be concentrated enter separator by tube side upper outlet, and medium exists
Under the centrifugation of separator, wherein a small amount of drop being mingled with returns to tube side through separator bottom outlet；Vapor is by separator
Top exit enters vapour compression machine, then enters heat exchanger shell pass by vapour compression machine, by exchanging heat between shell side and tube side
Afterwards, water vapour cooling becomes condensed water, is discharged by pipeline E, incondensable gas is discharged by exhaust branch.
The beneficial effects of the utility model are：The utility model is produced high-temperature gas and directly stirred using compressor work to be added
In heat exchanger tube side while feed liquid to be concentrated, water pipe is also set up, it is excessive to avoid compressor temperature, ensures that its is long-term
Steady operation.Due to also stirring feed liquid while heat is directly passed to feed liquid, feed liquid is set to be heated evenly gas after heat transfer
Body comes back to vapour compression machine import by separator.The preheating method of the utility model uniqueness can ensure that compressor continues
Run well, without other exterior source of energy such as electrical auxiliary heater, and direct heat transfer preheating time is short, efficient.This practicality
The Novel extending function of vapour compression machine in systems, realizes its preheating to feed liquid.Directly heated by rationally setting
Pipeline, heat exchanging pipe, row on-condensible gas pipeline and water pipe etc., vapour compression machine not only can be used to secondary in evaporation operating mode
Steam pressurization heating, maintains system normal operation, and abandoned before operating mode is evaporated for feed liquid is heated to evaporating temperature
The equipment such as electrical auxiliary heater, energy storage water tank, extraneous steam in general MVR system flows, simplify system structure, improve
System stand-alone capability, while this direct-fired mode is utilized, preheating time is substantially reduced, improves the pre- thermal efficiency,
The progress of MVR technologies is promoted.
Brief description of the drawings
Fig. 1 is the system structure diagram of the utility model.
Wherein：1. vapour compression machine；2. pressure difference transmitter；3. the first temperature transmitter；4. the second operated pneumatic valve；5. second
Check-valves；6. the 3rd operated pneumatic valve；7. second temperature transmitter；8. first manual valve；9. heat exchanger；10. pressure transmitter；
11. the 4th operated pneumatic valve；12. separator；13. the second manually-operated gate；14. the first operated pneumatic valve；15. first check-valve；A. mend
The mouth of a river；B. on-condensible gas mouth is arranged；C. concentrate mouth is arranged；D. liquor inlet；L01. pipeline is directly heated；L02. heat exchanging pipe；
L03. water pipe；L04. on-condensible gas pipeline is arranged；Arrow represents the flow direction of medium.
Embodiment
Embodiment 1
A kind of MVR vapo(u)rization systems provided in this embodiment, as shown in Figure 1：Including vapour compression machine 1 and vapour compression machine 1
The separator 12 and heat exchanger 9 of connection；The heat exchanger 9 includes tube side and shell side；The outlet of the vapour compression machine 1 passes through
One pipeline L01 and the second pipeline L02 are respectively connected to the import below the tube side of heat exchanger 9 and the import below shell side；It is described
The tube side outlet of heat exchanger 9 is connected to the import of the lower section of separator 12 by pipeline；12 upper outlet of separator passes through pipe
Road is connected to the entrance of vapour compression machine 1.
The present embodiment further includes the 3rd pipeline L03 for being used for moisturizing installed in 1 inlet of vapour compression machine；3rd pipe
15 and the 3rd operated pneumatic valve 14 of first check-valve is installed on the L03 of road.Further include to be arranged at 9 shell side lower exit port of heat exchanger and use
In the gas exhaust piping L04 and condensed water discharge pipe road E of row's on-condensible gas；The 4th hand-operated valve is installed on the gas exhaust piping L04
Door 8.Further include the second operated pneumatic valve 4 being arranged on the second pipeline L02 and the second non-return being arranged on the first pipeline L01
5 and first operated pneumatic valve 6 of valve.Further include the 6th manually-operated gate being arranged between separator 12 and vapour compression machine 1 on pipeline
13.Further include the 5th operated pneumatic valve 11 for being arranged on 12 upper inlet of separator.Further include the pressure on vapour compression machine 1
Poor transmitter 2 and the first temperature transmitter 3 for being arranged on 1 exit of vapour compression machine.Further include at heat exchanger tube pass
Second temperature transmitter 7 and the liquor inlet D that is arranged on below heat exchanger and row's concentrate mouth C.Pacify on the separator 12
Equipped with pressure transmitter 10.
Present invention also provides the pre-heating mean of the MVR vapo(u)rization systems, comprise the following steps：
1) start vapo(u)rization system, close the second operated pneumatic valve 4 and open the first pneumatic operated valve 6 at the same time, open vapour compression machine 1,
Start to preheat feed liquid；When pressure transmitter 10 detects that pressure is down to setting value 70kPa (a) in separator 12, the
Five operated pneumatic valves, 11 controlled opening, air is supplemented to system；When pressure rises to more than setting value then the 5th operated pneumatic valve 11 from
It is dynamic to close；
2) 13 aperture of the 6th manually-operated gate is adjusted so that the vapour compression machine inlet outlet pressure differential that pressure difference transmitter 2 measures is about
For 40kPa.When the detection temperature of the second temperature sensor is less than feed liquid evaporating temperature to be concentrated, medium is through pressure in system
After the acting of contracting machine is heated, enters heat exchanger tube pass through directly heating pipeline, transfer heat to feed liquid, air dielectric in system
After vapour compression machine acting heating, enter heat exchanger tube pass through the first pipeline L01, transfer heat to feed liquid in tube side and
Feed liquid is stirred, is heated evenly feed liquid；Gas and vapor blending agent after cooling enter separator by tube side upper outlet
12, under the centrifugation of separator, it is mingled with drop and returns to tube side through separator bottom outlet blending agent；Air and water
Steam enters vapour compression machine by separator top exit, so circulation；
3) when the detection temperature of the second temperature sensor reaches 90 ° of feed liquid evaporating temperature to be concentrated, first is pneumatic
Valve 6 is automatically closed, and the second pneumatic operated valve 4 automatically turns on, and medium enters heat exchanger shell after vapour compression machine acting heating in system
Journey, is exchanged heat by pipe, shell side and provides energy maintenance feed liquid evaporation and concentration to feed liquid；In evaporation process, heat exchanger shell pass water steams
Vapour is discharged since heat exchange becomes condensed water from shell side outlet at bottom E, and the on-condensible gas in heat exchanger shell pass is by row's on-condensible gas pipe
Lime set gas port B is not discharged into air to the road i.e. row of the 4th pipeline L04；
4) in whole process, setting limit value is reached when the first temperature transmitter 3 measures vapour compression machine outlet temperature
At 140 °, show that vapour compression machine outlet temperature is excessive, the first operated pneumatic valve 14 automatically opens up, in water pipe i.e. the 3rd pipeline
The water supplement port A of L03 introduces extraneous condensed water, cools down to system water supplement, ensures that vapour compression machine is safe for operation, condensed water is heated
Become water vapour, form gaseous mixture with air in system, as the medium for carrying heat, feed liquid is preheated again；With
The rise of feed temperature, when second temperature transmitter 7 detects that temperature reaches evaporating temperature in tube side, continues to be concentrated by evaporation.
5) after feed concentration to be concentrated reaches predetermined concentration concentration, bottom row of the concentration feed liquid through heat exchanger tube pass
Liquid mouth C is discharged.
The utility model is arranged on the second check-valve directly heated on pipeline L01 and is used for preventing from flowing backwards in feed liquid pipeline,
First pneumatic operated valve 6 is automatically opened up when heating feed liquid, by the heated gas medium of vapour compression machine by directly heating pipeline
Into heat exchanger tube pass, feed liquid is not only directly transferred heat to, while stirs feed liquid, is heated evenly feed liquid, this valve is adding
It is automatically closed after thermal process.The second operated pneumatic valve 4 set on heat exchanging pipe L02 is used for realizing from heating cycle to evaporation
The conversion of operating mode, its heating cycle close, into evaporation operating mode when automatically open up.Row on-condensible gas pipeline L04 is remained
With atmosphere, it is mainly used for evaporating the on-condensible gas that heat exchanger shell pass is discharged in operating mode, first manual valve is set on its pipeline
Door 8, for adjusting connected entrance size, controls vapour compression machine outlet pressure.
The present embodiment is in step 2), when pressure transmitter detects that pressure is down to setting value 70kPa in cyclone separator
(a) when, the 5th controlled opening of valve, air is supplemented to system；When pressure rises to more than setting value, then the 5th valve closes automatically
Close.
For the present embodiment in step 3), the detection temperature of second temperature sensor reaches 90 ° of feed liquid evaporating temperature to be concentrated
And during the above, the gas and vapor blending agent of feed liquid evaporation to be concentrated enter separator by tube side upper outlet, and mixing is situated between
Matter is under the centrifugation of separator, wherein a small amount of drop being mingled with returns to tube side through separator bottom outlet；Vapor is by dividing
Enter vapour compression machine from device top exit, then heat exchanger shell pass is entered by vapour compression machine, by between shell side and tube side
Incondensable gas after heat exchange is discharged by exhaust branch, and condensed water is discharged by pipeline E.
In addition to the implementation, the utility model can also have other embodiment.It is all to use equivalent substitution or equivalent change
The technical solution to be formed is changed, all falls within the protection domain of the requires of the utility model.
Claims (7)
1. a kind of MVR vapo(u)rization systems, including vapour compression machine（1）And cyclone separator（12）And shell-and-tube heat exchanger（9）；Its
It is characterized in that：The outlet of the vapour compression machine passes through equipped with the first valve（6）The first pipeline（L01）It is connected to the heat exchanger
The tube side import of bottom, while by equipped with the second valve（4）The second pipeline（L02）It is connected to the shell side of the exchanger base
Import；The shell side of the heat exchanger is equipped with the 4th valve（8）Exhaust branch（L04）, the tube side on the heat exchanger top goes out
Mouth is connected to cyclone separator separation import；The top separation outlet of the cyclone separator and lower part isolate mouth and are respectively connected to steam
Tube side import below the entrance and heat exchanger of vapour compressor；The entrance of the compressor is equipped with the 3rd valve（14）Moisturizing
Branch；The outlet of the compressor is equipped with the first temperature sensor（T1）, the exchanger base is equipped with second temperature sensor
（T2）.
2. MVR vapo(u)rization systems according to claim 1, it is characterised in that：Further include and be arranged on the 3rd valve water inlet
First check-valve (15).
3. MVR vapo(u)rization systems according to claim 2, it is characterised in that：Further include and be arranged on the first pipeline（L01）First
Valve（6）Second check-valve before water inlet（5）.
4. MVR vapo(u)rization systems according to claim 3, it is characterised in that：Further include the pressure being arranged on vapour compression machine
Poor transmitter（2）.
5. MVR vapo(u)rization systems according to claim 4, it is characterised in that：Further include the pressure being arranged on cyclone separator
Power transmitter（10）.
6. MVR vapo(u)rization systems according to claim 5, it is characterised in that：Further include and be arranged on cyclone separator（12）On
5th valve of portion's import（11）With the 6th valve in exit（13）.
7. MVR vapo(u)rization systems according to claim 6, it is characterised in that：Described first, second, third and the 5th valve
Door is operated pneumatic valve；Four, the 6th valve is manually-operated gate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720568577.1U CN207324105U (en) | 2017-05-19 | 2017-05-19 | A kind of MVR vapo(u)rization systems |
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| CN201720568577.1U CN207324105U (en) | 2017-05-19 | 2017-05-19 | A kind of MVR vapo(u)rization systems |
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| CN207324105U true CN207324105U (en) | 2018-05-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126717A (en) * | 2017-05-19 | 2017-09-05 | 航天晨光股份有限公司 | A kind of MVR vapo(u)rization systems and its startup pre-heating mean |
| CN109529395A (en) * | 2019-01-16 | 2019-03-29 | 格瑞拓动力股份有限公司 | Evaporation control device and method |
| CN110639220A (en) * | 2019-10-31 | 2020-01-03 | 湖南汉华京电清洁能源科技有限公司 | Multi-effect evaporation system with pressure adjusting device and pressure adjusting method |
| CN113198190A (en) * | 2021-05-17 | 2021-08-03 | 辽宁麦格尼科技有限公司 | Process equipment for ammonia distillation of slurry |
-
2017
- 2017-05-19 CN CN201720568577.1U patent/CN207324105U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126717A (en) * | 2017-05-19 | 2017-09-05 | 航天晨光股份有限公司 | A kind of MVR vapo(u)rization systems and its startup pre-heating mean |
| CN109529395A (en) * | 2019-01-16 | 2019-03-29 | 格瑞拓动力股份有限公司 | Evaporation control device and method |
| CN109529395B (en) * | 2019-01-16 | 2021-08-27 | 格瑞拓动力股份有限公司 | Evaporation control apparatus and method |
| CN110639220A (en) * | 2019-10-31 | 2020-01-03 | 湖南汉华京电清洁能源科技有限公司 | Multi-effect evaporation system with pressure adjusting device and pressure adjusting method |
| CN110639220B (en) * | 2019-10-31 | 2021-10-26 | 湖南汉华京电清洁能源科技有限公司 | Multi-effect evaporation system with pressure adjusting device and pressure adjusting method |
| CN113198190A (en) * | 2021-05-17 | 2021-08-03 | 辽宁麦格尼科技有限公司 | Process equipment for ammonia distillation of slurry |
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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 |