CN206207966U - Water circulation type function of mechanical steam recompression MVR drying systems - Google Patents
Water circulation type function of mechanical steam recompression MVR drying systems Download PDFInfo
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- CN206207966U CN206207966U CN201621214427.2U CN201621214427U CN206207966U CN 206207966 U CN206207966 U CN 206207966U CN 201621214427 U CN201621214427 U CN 201621214427U CN 206207966 U CN206207966 U CN 206207966U
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Abstract
The utility model is related to a kind of water circulation type function of mechanical steam recompression MVR drying systems, belongs to dry materials technical field.The system constitutes superheat steam drying circulation loop by compressor, one-level drier, cyclone dust collectors, condenser；Water-flow circuit is constituted by condensate water pot, circulating pump, secondary drying device, air heater, condenser；Air drying cycle loop is constituted by secondary drying device, air heater, circulating fan；Superheat steam drying circulation loop is of coupled connections with water-flow circuit by condenser；Water-flow circuit is of coupled connections with air drying cycle loop by secondary drying device and air heater.System rate of drying is fast, efficient energy-saving, be easy to regulation and control.
Description
Technical field
The utility model is related to a kind of drying system, and specifically a kind of water circulation type function of mechanical steam recompression MVR dries system
System.
Background technology
Drying is the important process process in industrial production, is added in agricultural, food, chemical industry, ceramics, medicine, agricultural byproducts
Nearly all industrial field such as work is directed to dry link.The energy requirement of drying process is larger, develops efficient, energy-saving drying
System significance is great.
Superheat steam drying is a kind of brand-new drying means developed in recent years, big, dry with heat transfer coefficient is dried
The advantages of dry efficiency high, resistance to mass tranfer are small, product drying quality is good.The generation of superheated steam can use heating or both vapor compression
Method.Function of mechanical steam recompression MVR is dried：To the indirect steam that drying process is produced machinery pressure is carried out by compressor and contracts to reach
To superheat state, superheated steam is re-used for the heating of drying process afterwards.Due to the degree of superheat after the pressure of water vapour compressor
It is relatively small, if superheated steam degree of superheat during dried material is eliminated, that is, reach saturation state, drying process is by nothing
Method proceeds, and material even occurs and is saturated the phenomenons such as steam humidification condensation, and dried material is difficult to obtain relatively low aqueous
Rate.
Utility model content
The purpose of this utility model is directed to the deficiency that above-mentioned prior art is present, there is provided a kind of water circulation type machinery steams
Vapour recompresses MVR drying systems.
A kind of water circulation type function of mechanical steam recompression MVR drying systems, it is characterised in that：Including compressor, cyclone dust removal
Device, one-level drier, condenser, condensate water pot, circulating pump, secondary drying device, air heater, circulating fan；The condensation
Utensil has steam inlet, steam (vapor) outlet, circulation water inlet, circulating water outlet, condensation-water drain；Second drier is provided with circulation
Water flow passage interlayer, the second drying appliance has air intake, air outlet slit, circulation water inlet, circulating water outlet；Air heater has
There are circulation water inlet, circulating water outlet, circulated air entrance, circulated air to export；The outlet of above-mentioned compressor and the first drier
Entrance is connected, and the outlet of the first drier is connected with the entrance of cyclone dust collectors, and the outlet of cyclone dust collectors is divided into tie point
With the second branch road, wherein tie point is connected with the steam inlet of condenser, the steam (vapor) outlet of condenser and above-mentioned second branch road
Together superheat steam drying circulation loop is connected to form with the entrance of compressor；On compressor outlet to the pipeline of the first drier
It is further connected with raw steam pipe；The solidifying water out of above-mentioned condenser is connected with condensate water pot entrance, and condensate water pot is exported by circulating pump
It is connected with the circulation water inlet of the second drier, the circulating water outlet of the second drier and the circulation water inlet phase of air heater
Even, the circulating water outlet of air heater is connected with the circulation water inlet of condenser, the circulating water outlet and condensed water of condenser
Tank entrance is connected, and constitutes water-flow circuit；The circulated air entrance phase of the air outlet slit of above-mentioned secondary drying device and air heater
Even, the circulated air outlet of air heater is connected by circulating fan with the air intake of secondary drying device, and composition is air-dried
Circulation loop；Exhaust valve and air inlet valve are respectively equipped with air drying cycle loop, air inlet valve entrance location is provided with air intake blower fan；
Above-mentioned superheat steam drying circulation loop is of coupled connections with water-flow circuit by condenser；Water-flow circuit is followed with being air-dried
Loop back path is of coupled connections by secondary drying device and air heater.
The drying means of described water circulation type function of mechanical steam recompression MVR drying systems, it is characterised in that：System starts
Afterwards, the material in raw steam heating one-level drier is opened, after material is heated to drying temperature, raw steam is closed, and open
Compressor is opened, the indirect steam of material moisture gasification generation is through entrained dust of cyclone dust collectors removing etc. in one-level drier
After impurity, a part goes to condenser condensation liquefaction, and another part is back to suction port of compressor and is not coagulated with condensator outlet
Steam is heated up by compressor boost again together, forms the superheated steam with certain degree of superheat, and superheated steam enters one afterwards
Level drier, and realize that the caloic for treating dry material is exchanged；When the moisture content of material in one-level drier is down to critical moisture content,
I.e. at the end of the freeze-day with constant temperature process of material, the material in one-level drier is transferred in secondary drying device, and one-level is done
New material is reentered into dry device；The moisture that dry materials are produced in one-level drier is condensed at condenser, and flows into condensation
Water pot, in the presence of circulating pump, high-temperature condensation water initially enters the circulating water passage interlayer of secondary drying device, by heat transfer
Mode heated material, the air of air inlet heater, and heat cycles afterwards, the recirculated water after cooling returns to condenser and reclaims one
The condensation latent heat of the indirect steam that level drier is produced；Air in second drier is heated up by air heater,
Enter the second drier in the presence of circulating fan and realize to the hot and humid area of material, when the relative humidity increasing of circulation air
To setting value, exhaust valve and air inlet valve, the highly humid air in removal system are opened, and fill into fresh dry air;Two grades are done
Dry materials in dry device under circulating water heat conducting is heated and cross-ventilation is heated double action by carrying out.
The compressor can be centrifugal compressor or screw compressor or Roots Compressor.
The one-level drier and secondary drying device）Chamber dryer or drum dryer can be.
The condenser can be fin-tube heat exchanger or plate type heat exchanger.
The condenser can be direct contact condenser, and the condensation-water drain and circulating water outlet can be a mouth.
The air heater can be fin-tube heat exchanger or plate type heat exchanger..
The circulating fan and air intake blower fan can be axial flow blower.
Compared with prior art, the beneficial effects of the utility model are：
Water circulation type function of mechanical steam recompression MVR drying systems of the present utility model, connected applications superheat steam drying
Technology and hot-air dry technology.The latent heat of condensation of superheat steam drying cyclic steam, recirculated water are reclaimed by water circulation system
A heat part for recovery heats the material of secondary drying device by heat exchange pattern, and another part is air-dried for heating and follows
The air of loop back path, hot-air heats the material of secondary drying device under the drive of circulating fan by convection type.After cooling
Recirculated water be back to condenser and be heated again intensification, while realizing the dehumidification by condensation to superheat steam drying cyclic steam.
Material uses the constant rate of drying of stage drying mode, material to be completed by the Convective Heating of superheated steam in one-level drier,
The falling-rate periods of drying of material is heated and convection current of the hot-air to material by recirculated water in secondary drying device to the heat transfer of material
Completed under the double action of heating, system has fast rate of drying, efficient energy-saving, is easy to the features such as regulating and controlling.
Brief description of the drawings
Fig. 1 is the systematic schematic diagram of embodiment one；
Fig. 2 is the secondary drying device structural representation of the application of embodiment one；
Fig. 3 is the systematic schematic diagram of embodiment two；
Fig. 4 is the systematic schematic diagram of embodiment three.
In figure, 1 is compressor, and 2 is cyclone dust collectors, and 3 is one-level drier, and 4 is condenser, and 5 is condensate water pot, and 6 are
Circulating pump, 7 is secondary drying device, and 8 is air heater, and 9 is circulating fan, and 10 is air inlet valve, and 11 is air intake blower fan, and 12 is row
Air-valve.
Specific embodiment
The utility model is described in further details with specific embodiment below in conjunction with the accompanying drawings, example is served only for solution
The utility model is released, scope of the present utility model is not intended to limit.
Embodiment one：
Fig. 1 is schematic diagram of the present utility model.Water circulation type function of mechanical steam recompression MVR drying systems, including compressor
1, cyclone dust collectors 2, one-level drier 3, condenser 4, condensate water pot 5, circulating pump 6, secondary drying device 7, air heater 8,
Circulating fan 9, air inlet valve 10, air intake blower fan 11, exhaust valve 12.
System is made up of superheat steam drying circulation, water circulation, three sub- loops of air drying cycle.By compressor 1,
Level drier 3, cyclone dust collectors 2, condenser 4 join end to end constitute superheat steam drying circulation loop successively, loop back herein
By the air outlet of cyclone dust collectors and suction port of compressor UNICOM on road, raw steaming is set on the pipeline of compressor outlet to one-level drier
Vapour inlet pipe.The condenser is provided with drainpipe, and passes to condensate water pot 5.By condensate water pot 5, circulating pump 6, secondary drying device 7,
Air heater 8, condenser 4 join end to end composition water-flow circuit successively.By secondary drying device 7, air heater 8, circulation
Blower fan 9 is joined end to end constitute air drying cycle loop successively, and exhaust valve 12 and air inlet valve 10, air inlet valve are respectively equipped with loop
Entrance location is provided with air intake blower fan 11.Superheat steam drying circulation loop is of coupled connections with water-flow circuit by condenser；Water
Circulation loop is of coupled connections with air drying cycle loop by secondary drying device and air heater.
The compressor 1 uses centrifugal compressor, one-level drier 3 to use chamber dryer, condenser 4 and air to add
Hot device 8 uses fin-tube heat exchanger；As shown in Fig. 2 secondary drying device uses chamber dryer, material disc bottom sets circulation
Water flow passage interlayer；Circulating fan 9 and air intake blower fan 11 use axial flow blower.
Operation principle of the present utility model is as follows：
After system starts, the material in raw steam heating one-level drier 3 is opened, treat that material is heated to drying temperature
Afterwards, raw steam is closed, and opens compressor 1.The indirect steam of material moisture gasification generation is through cyclone dust removal in one-level drier
After device 2 removes the impurity such as entrained dust, a part goes to the condensation liquefaction of condenser 4, and another part is back to compressor and enters
Mouth is simultaneously heated up by compressor boost again together with the uncondensated steam of condensator outlet, forms the overheat with certain degree of superheat and steams
Vapour, superheated steam enters one-level drier afterwards, and realizes that the caloic for treating dry material is exchanged.When material in one-level drier
At the end of moisture content is down to the freeze-day with constant temperature process of critical moisture content, i.e. material, the material in one-level drier is transferred to two
In level drier 7, and new material will be reentered into one-level drier.The moisture that dry materials are produced in one-level drier is cold
Condensed at condenser 4, and flow into condensate water pot 5, in the presence of circulating pump 6, high-temperature condensation water initially enters secondary drying device and leads to
Heat exchange pattern heated material is crossed, the air of air inlet heater 8, and heat cycles afterwards, the recirculated water after cooling returns cold
Condenser reclaims the condensation latent heat of the indirect steam that one-level drier is produced.Dry materials in secondary drying device are led by recirculated water
Carried out under the double action of heat heating and cross-ventilation heating.
Embodiment two：
System principle is as shown in figure 3, the system composition of the present embodiment is identical with embodiment one with operation principle.
Compressor 1 in the present embodiment uses screw compressor, one-level drier 3 to use drum dryer, condenser 4
And air heater 8 uses plate type heat exchanger, secondary drying device 7 to use the drum dryer of built-in circulating water sandwich, circulated air
Machine 9 and air intake blower fan 11 use axial flow blower.
Embodiment three：
System principle is as shown in figure 4, the system composition of the present embodiment is identical with embodiment one with operation principle.
Compressor 1 in the present embodiment uses Roots Compressor；One-level drier 3 uses drum dryer；Two grades are done
Dry device 7 uses the drum dryer of built-in circulating water sandwich；Condenser 4 uses the recirculated water of direct contact condenser, backflow to spray into
Condenser, and the indirect steam direct contact heat transfer produced with one-level drier, realize the recovery to steam condensation latent heat；Air
Heater 8 uses fin-tube heat exchanger；Circulating fan 9 and air intake blower fan 11 use axial flow blower.
The drying process of material is divided into two sections of completions by the utility model, and constant speed drying section is dry using superheated steam circulation
Dry, deceleration drying section uses hot-air cyclic drying.System heats secondary drying by the high-temperature condensation water that superheated steam is circulated
Material and circulation air in device.The features such as system has fast rate of drying, efficient energy-saving, is easy to regulation and control.
Although being described to the utility model above in association with accompanying drawing, the utility model is not limited to above-mentioned
Specific embodiment, above-mentioned specific embodiment is only illustrative, rather than restricted, the ordinary skill people of this area
Member, in the case where the utility model objective is not departed from, can also make many variations under enlightenment of the present utility model, these
Belong to protection domain of the present utility model.
Claims (7)
1. a kind of water circulation type function of mechanical steam recompression MVR drying systems, it is characterised in that：
Including compressor（1）, cyclone dust collectors（2）, one-level drier（3）, condenser（4）, condensate water pot（5）, circulating pump
（6）, secondary drying device（7）, air heater（8）, circulating fan（9）；
The condenser（4）With steam inlet, steam (vapor) outlet, circulation water inlet, circulating water outlet, condensation-water drain；
Second drier（7）Circulating water passage interlayer is provided with, the second drying appliance has air intake, air outlet slit, recirculated water
Entrance, circulating water outlet；
Air heater（8）With circulation water inlet, circulating water outlet, circulated air entrance, circulated air outlet；
Above-mentioned compressor（1）Outlet and the first drier（3）Entrance be connected, the first drier（3）Outlet removed with whirlwind
Dirt device（2）Entrance be connected, cyclone dust collectors（2）Outlet be divided into tie point and the second branch road, wherein tie point with it is cold
Condenser（4）Steam inlet be connected, condenser（4）Steam (vapor) outlet together with above-mentioned second branch road with compressor（1）Entrance
It is connected to form superheat steam drying circulation loop；Compressor（2）It is exported to the first drier（3）Pipeline on be further connected with raw steam
Pipe；
Above-mentioned condenser（4）Solidifying water out and condensate water pot（5）Entrance is connected, condensate water pot（5）Outlet is by circulating pump（6）
With the second drier（7）Circulation water inlet be connected, the second drier（7）Circulating water outlet and air heater（8）Follow
Ring water inlet is connected, air heater（8）Circulating water outlet and condenser（4）Circulation water inlet be connected, condenser（4）'s
Circulating water outlet and condensate water pot（5）Entrance is connected, and constitutes water-flow circuit；
Above-mentioned secondary drying device（7）Air outlet slit and air heater（8）Circulated air entrance be connected, air heater（8）
Circulated air export by circulating fan（9）With secondary drying device（7）Air intake be connected, composition air drying cycle return
Road；Air drying cycle is respectively equipped with exhaust valve on loop（12）With air inlet valve（10）, air inlet valve entrance location is provided with air intake wind
Machine（11）；
Above-mentioned superheat steam drying circulation loop passes through condenser with water-flow circuit（4）It is of coupled connections；Water-flow circuit and sky
Gas drying cycles loop passes through secondary drying device（7）And air heater（8）It is of coupled connections.
2. water circulation type function of mechanical steam recompression MVR drying systems according to claim 1, it is characterised in that：The pressure
Contracting machine（1）It is centrifugal compressor or screw compressor or Roots Compressor.
3. water circulation type function of mechanical steam recompression MVR drying systems according to claim 1, it is characterised in that：Described one
Level drier（3）With secondary drying device（7）It is chamber dryer or drum dryer.
4. water circulation type function of mechanical steam recompression MVR drying systems according to claim 1, it is characterised in that：It is described cold
Condenser（4）It is fin-tube heat exchanger or plate type heat exchanger.
5. water circulation type function of mechanical steam recompression MVR drying systems according to claim 1, it is characterised in that：It is described cold
Condenser（4）It is direct contact condenser, the condensation-water drain and circulating water outlet are a mouth.
6. water circulation type function of mechanical steam recompression MVR drying systems according to claim 1, it is characterised in that：The sky
Hot-air heater（8）It is fin-tube heat exchanger or plate type heat exchanger.
7. water circulation type function of mechanical steam recompression MVR drying systems according to claim 1, it is characterised in that：It is described to follow
Ring blower fan（9）And air intake blower fan（1）It is axial flow blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214427.2U CN206207966U (en) | 2016-11-11 | 2016-11-11 | Water circulation type function of mechanical steam recompression MVR drying systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214427.2U CN206207966U (en) | 2016-11-11 | 2016-11-11 | Water circulation type function of mechanical steam recompression MVR drying systems |
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| Publication Number | Publication Date |
|---|---|
| CN206207966U true CN206207966U (en) | 2017-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621214427.2U Withdrawn - After Issue CN206207966U (en) | 2016-11-11 | 2016-11-11 | Water circulation type function of mechanical steam recompression MVR drying systems |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500492A (en) * | 2016-11-11 | 2017-03-15 | 江苏乐科节能科技股份有限公司 | Water circulation type function of mechanical steam recompression MVR drying systems and its method |
| CN107514627A (en) * | 2017-09-22 | 2017-12-26 | 天津科技大学 | The superheater of mechanical compression type compressor inlet steam |
| CN107594583A (en) * | 2017-09-26 | 2018-01-19 | 南昌航空大学 | A kind of energy-efficient drying device of fruits and vegetables low-pressure superheated steam and method |
-
2016
- 2016-11-11 CN CN201621214427.2U patent/CN206207966U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500492A (en) * | 2016-11-11 | 2017-03-15 | 江苏乐科节能科技股份有限公司 | Water circulation type function of mechanical steam recompression MVR drying systems and its method |
| CN106500492B (en) * | 2016-11-11 | 2022-05-03 | 江苏乐科节能科技股份有限公司 | Water circulation type mechanical vapor recompression MVR drying system and method thereof |
| CN107514627A (en) * | 2017-09-22 | 2017-12-26 | 天津科技大学 | The superheater of mechanical compression type compressor inlet steam |
| CN107594583A (en) * | 2017-09-26 | 2018-01-19 | 南昌航空大学 | A kind of energy-efficient drying device of fruits and vegetables low-pressure superheated steam and method |
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Legal Events
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170531 Effective date of abandoning: 20220503 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170531 Effective date of abandoning: 20220503 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |