CN204944055U - A kind of energy-saving type vacuum drying system - Google Patents
A kind of energy-saving type vacuum drying system Download PDFInfo
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- CN204944055U CN204944055U CN201520712551.0U CN201520712551U CN204944055U CN 204944055 U CN204944055 U CN 204944055U CN 201520712551 U CN201520712551 U CN 201520712551U CN 204944055 U CN204944055 U CN 204944055U
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- vacuum drier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a kind of energy-saving type vacuum drying system, after material enters vacuum drier, the steam from heat exchanger enters vacuum drier, and material dehydrates under low-pressure low-temperature state; Indirect steam is discharged through entering heat exchanger and heating agent condensed water carries out heat exchange after jet pump pressurization jet pump system from vacuum drier; Heating agent condensed water is heated rear formation saturated vapor and is entered vacuum drier, completes the dry run of material as heating agent; After steam enters vacuum drier heated material, steam-condensation is water, and high-temperature condensation water enters heat exchanger, the water vapour overflowed with jet pump system in heat exchanger carries out heat exchange, generated water vapour by heating, water vapour enters vacuum drier circulation, completes the drying of material.The energy-saving type vacuum drying process that the utility model proposes and system, recycle dry waste heat, and in systems in which, fully carry out cascade utilization to heat, the whole system thermal efficiency is high, Btu utilization is abundant, system energy consumption is low.
Description
Technical field
The utility model relates to technical field of drying, is specifically related to a kind of energy-saving type vacuum drying system.
Background technology
Vacuum drying has many advantages compared with other drying means: time under low pressure dry, oxygen content is low, can prevent dried material oxidation deterioration, can dry inflammable and explosive dangerous material; The moisture in material can be made at low temperatures to vaporize, be easy to dry heat sensitive material; Valuable and the useful composition in dried material can be reclaimed; The discharge of poisonous and harmful substance in dried material can be prevented, " green " that can become environmental protection type is dry, and its major defect is the vacuum system needing a set of steam that can draw water, such that energy consumption is high, equipment investment expense is large, running expense is high, production efficiency of equipment is low, output is little.But because of the many obvious advantage of institute's tool, vacuum drying obtains a wide range of applications in fields such as food, chemical industry, grains.
Utility model content
For solving the deficiency that prior art exists, the utility model discloses a kind of energy-saving type vacuum drying process and system, the utility model adopts vacuum dehydrating at lower temperature and after drying device, reclaims the heat of indirect steam, and improve the efficiency of energy utilization of system, system rate of drying is large, energy consumption is low.
For achieving the above object, concrete scheme of the present utility model is as follows:
A kind of energy-saving type vacuum drying process, comprises the following steps:
After material enters vacuum drier, the saturated vapor from heat exchanger enters vacuum drier, and material dehydrates under low-pressure low-temperature state;
After saturated vapor enters vacuum drier heated material, saturated vapor is condensed into water, and high-temperature condensation water enters heat exchanger;
The indirect steam that in vacuum drier, material moisture evaporation produces is by the injected liquid ejecting of jet pump system, after jet pump pressurization, temperature raises, then overflow from atomizing of liquids as water vapor, be separated with atomizing of liquids, steam enters heat exchanger heating heating agent condensed water, heating agent condensed water is heated rear formation saturated vapor and is entered vacuum drier, completes the dry run of material as heating agent.
Further, vacuum drier is inner, and pressure maintains-0.092--0.098MPa.Vacuum drier, with tracing system, is enabled during start.The pressure setting of vacuum drier is convenient to material and is dehydrated under low-pressure low-temperature.
Further, installed heater in jet pump system, before vacuum drier start, industrial exhaust heat or Electric heating heated spray liquid can be adopted to assigned temperature, after vacuum drier runs, heater is stopped using.The safe operation of whole system is convenient in the installation of heater, and the ruuning situation according to system determines whether heater, ensure that the stability of system.
Further, jet pump system atomizing of liquids temperature is higher than 100 DEG C, and indirect steam, after jet pump injection, mixes with atomizing of liquids, is forced into after playpipe outlet back pressure overflows in the form of water vapour through jetting fluid, enters heat exchanger heating heat medium water.Better make use of the waste heat of vacuum desiccator discharge by increasing jet pump system, producing saturated vapor and being back to vacuum desiccator again, being convenient to recycling of energy.
Further, material enters vacuum drier by feeding device, inner at vacuum drier, when temperature of charge rises to about 70 DEG C, dehydrates in a low voltage state, and dried material water ratio reduces.
A kind of energy-saving type vacuum drying system, comprise vacuum drier, the entrance of vacuum drier inner-heating tube is connected with the outlet of heat exchanger by pipeline, the outlet of vacuum drier inner-heating tube is connected with the entrance of heat exchanger by pipeline, an outlet of vacuum drier is connected with jet pump system, the indirect steam that in vacuum drier, material moisture evaporation produces is by the injected liquid ejecting of jet pump system, after jet pump pressurization, temperature raises, then overflow from atomizing of liquids as water vapor, be separated with atomizing of liquids, steam enters heat exchanger heating heat medium water, heating agent condensed water is heated rear formation saturated vapor and is entered vacuum drier.
Described jet pump system comprises jet pump, pump and heater, and vacuum drier is connected with jet pump, and jet pump is connected with pump, and jet pump is all connected with heater with pump, is provided with heater in heater.
The beneficial effects of the utility model:
The utility model utilizes jet pump to recompress secondary vapour, and improve waste heat taste, effectively can reclaim the latent heat of secondary vapour, thermal loss is little, and system thermal efficiency is high.
The energy-saving type vacuum drying process that the utility model proposes and system, recycle dry waste heat, and in systems in which, fully carry out cascade utilization to heat, the whole system thermal efficiency is high, Btu utilization is abundant, system energy consumption is low.
Accompanying drawing explanation
Fig. 1 overall structure schematic diagram of the present utility model;
In figure, 1-vacuum drier, 2-heat exchanger, 3-jet pump system, 4-jet pump, 5-pump, 6-heater.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in detail:
In Fig. 1, a kind of energy-saving type vacuum drying system comprises at least 1 vacuum drier 1, heat exchanger 2 and 1 and overlaps jet pump system 3.
A kind of energy-saving type vacuum drying process, comprising:
A. material enters vacuum drier by feeding device, inner at vacuum drier, when temperature of charge rises to about 70 DEG C, dehydrates in a low voltage state, and dried material water ratio reduces.
B., after steam enters drying machine heated material, steam-condensation is water, and high-temperature condensation water enters heat exchanger, heat exchange is carried out with steam (water vapour that jet pump system overflows) in heat exchanger, generated water vapour by heating, water vapour enters vacuum drier circulation, completes the drying of material.
C. the indirect steam that in vacuum drier, material moisture evaporation produces is by the injected liquid ejecting of jet pump, and after jet pump pressurization, temperature raises, and then overflows from atomizing of liquids with the form of saturated steam, is separated with atomizing of liquids.
Inner at vacuum drier 1, pressure maintains-0.092--0.098MPa, and after material enters vacuum drier 1 by feeding device, temperature of charge raises, and dehydrates in a low voltage state.
Vacuum drier 1 mode of heating is internal heat type, after steam enters drying machine 1 heated material, steam-condensation is water, high-temperature condensation water enters heat exchanger 2, heat exchange is carried out with steam (water vapour that jet pump system 3 overflows) in heat exchanger 2, generated saturated vapor by heating, water vapour enters vacuum drier 1 and circulates, and completes the drying of material.
The indirect steam that in vacuum drier 1, material moisture evaporation produces is overflowed injection liquid by jet pump 4 in the form of water vapour by after high-temperature injection liquid ejecting, enters heat exchanger 2 and carries out heat exchange with heat medium water.
Heating agent condensed water is heated rear formation saturated vapor and is entered vacuum drier 1, completes the dry run of material as heating agent.
The core apparatus of this technique adopts vacuum drier 1, and heating agent is water vapour.Under negative pressure of vacuum condition, the boiling point of water reduces, and water evaporates at low temperatures.Vacuum drying solves a difficult problem for some material difficulty dehydration, the problem that the heat-sensitive ingredients simultaneously avoiding some material at high temperature volatilizees.Installed heater 6 in jet pump system 3, can adopt the mode such as industrial exhaust heat or electrical heating heated spray liquid when system boot, after system is normally run, heater 6 is stopped using.Jet pump system 3 atomizing of liquids temperature is higher than 100 DEG C, and indirect steam, after jet pump injection, mixes with atomizing of liquids, is forced into after playpipe outlet back pressure and overflows system with the form of saturated vapor, enter heat exchanger 2 and heat heat medium water through jetting fluid.
There is heat exchanger tube vacuum drier 1 inside, and vacuum drier 1 is connected with jet pump system 3, and after the injected liquid ejecting heating of the indirect steam that vacuum drier 1 produces, steam and heating agent heat exchange, reclaimed the heat of secondary vapour.
Jet pump system 3 comprises jet pump 4, and pump 5, heater 6 etc., atomizing of liquids is high boiling liquid.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (2)
1. an energy-saving type vacuum drying system, it is characterized in that, comprise vacuum drier, the entrance of vacuum drier is connected with the outlet of heat exchanger by pipeline, an outlet of vacuum drier is connected with the entrance of heat exchanger by pipeline, another outlet of vacuum drier is connected with jet pump system, the indirect steam that in vacuum drier, material moisture evaporation produces is by the injected liquid ejecting of jet pump system, after jet pump pressurization, temperature raises, then overflow from atomizing of liquids with the form of saturated steam, be separated with atomizing of liquids, saturated steam enters heat exchanger heating heat medium water, heating agent condensed water is heated rear formation saturated vapor and is entered vacuum drier.
2. a kind of energy-saving type vacuum drying system as claimed in claim 1, it is characterized in that, described jet pump system comprises jet pump, pump and heater, vacuum drier is connected with jet pump, jet pump is connected with pump, and jet pump is all connected with heater with pump, is provided with heater in heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520712551.0U CN204944055U (en) | 2015-09-15 | 2015-09-15 | A kind of energy-saving type vacuum drying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520712551.0U CN204944055U (en) | 2015-09-15 | 2015-09-15 | A kind of energy-saving type vacuum drying system |
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| Publication Number | Publication Date |
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| CN204944055U true CN204944055U (en) | 2016-01-06 |
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| CN201520712551.0U Active CN204944055U (en) | 2015-09-15 | 2015-09-15 | A kind of energy-saving type vacuum drying system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157358A (en) * | 2015-09-15 | 2015-12-16 | 山东天力干燥股份有限公司 | Energy-saving vacuum drying technique and system |
| CN113004932A (en) * | 2021-02-25 | 2021-06-22 | 中山凯旋真空科技股份有限公司 | Jet evaporation system |
-
2015
- 2015-09-15 CN CN201520712551.0U patent/CN204944055U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157358A (en) * | 2015-09-15 | 2015-12-16 | 山东天力干燥股份有限公司 | Energy-saving vacuum drying technique and system |
| CN113004932A (en) * | 2021-02-25 | 2021-06-22 | 中山凯旋真空科技股份有限公司 | Jet evaporation system |
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