CN100494842C - Vacuum drying apparatus - Google Patents
Vacuum drying apparatus Download PDFInfo
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- CN100494842C CN100494842C CNB2006100082666A CN200610008266A CN100494842C CN 100494842 C CN100494842 C CN 100494842C CN B2006100082666 A CNB2006100082666 A CN B2006100082666A CN 200610008266 A CN200610008266 A CN 200610008266A CN 100494842 C CN100494842 C CN 100494842C
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- heat exchanger
- straight tube
- pump
- minton dryer
- hot plate
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Abstract
The invention is about a kind of Minton dryer, composing of case vacuum pump and heating groupware. The heating groupware composes of hot plate set in the case and heater offering heat energy to the hot plate out of the case; the vacuum is made up of Roots pump and rotary vane pump, concatenating refrigerating catcher between the Roots pump and rotary vane pump. The refrigerating catcher, expansion valve and heat exchanger build up refrigeration circular system. The invention can recover organic solvent, benefit lowering production costs and environmental protection, reduce pressure quickly, keep vacuum effectiveness good, dries quickly under the low temperature and consume less energy.
Description
Technical field
The present invention relates to a kind of Minton dryer.
Background technology
It is low that vacuum drying has a baking temperature, relative anoxic in the hothouse, can avoid fat oxidation, series of advantages such as pigment brown stain, the drying that is suitable for the heat sensitivity material, equipment cost, dry expense are also relatively low in addition, so vacuum drying is widely used in industries such as food, pharmacy, chemical industry.
Traditional Minton dryer has vacuum subassembly, heating component and casing, vacuum subassembly has vavuum pump, heating component has the polylith hollow heating tube that is arranged in the casing, the general logical steam heated in heating tube the inside, and material adds the transmission of heat mainly by the heat conduction.Material is placed on and places in the metal dish on the heating tube, and heat arrives material inside by the heat conduction, makes other organic solvent heating evaporations in moisture content or the material, vacuumizes in the casing simultaneously, to reduce the boiling point of moisture content or organic solvent, accelerates dry process.But the gas that traditional Minton dryer is extracted out is directly to be discharged in the atmosphere, if contain organic solvent in the material, is to reclaim organic solvent, is unfavorable for reducing production costs and environmental protection.Minton dryer is favourable to come step-down with water ring vacuum pump, owing to influenced by the water saturation vapour pressure, the boiling point of water is usually greater than 50 ℃ in its drying box, the baking temperature of most conventional vacuum drying chamber has rate of drying faster during greater than 80 ℃, 50 ℃ ~ 80 ℃ slower when dry, and baking temperature is difficult to during less than 50 ℃ dry, and traditional vacuum drying dress vacuum suction amount is less, pressure decay rate is slower, and energy consumption is bigger.
Summary of the invention
Purpose of the present invention just provide a kind of recyclable organic solvent, pressure decay rate fast, can in low temperature range, carry out rapid draing and the lower Minton dryer of energy consumption.
Minton dryer of the present invention has casing, vavuum pump and heating component, and heating component has and is arranged on the hot plate in the casing and is arranged on the outer heater that heat energy is provided for hot plate of casing; Described vavuum pump is made up of lobe pump and sliding vane rotary pump, and serial connection condensation catcher between lobe pump and the sliding vane rotary pump is formed cooling recirculation system by heat exchanger in the above-mentioned condensation catcher and compressor, expansion valve, heat exchanger; A described heat exchanger outside has housing, heat exchanger bends to the three-dimensional coiled pipe that straight tube, bend pipe are provided with at interval by a long tube, the straight tube dislocation of a heat exchanger is arranged, making the gas channel in the housing is bending channel, gas flow direction is perpendicular to straight tube, and heat exchanger is in spacing between the anterior straight tube greater than the spacing between the straight tube that is in the rear portion.
The heater of above-mentioned Minton dryer has the conduction oil case, is provided with electric heating tube or No. two heat exchangers in the heat conduction fuel tank, and heat conduction fuel tank peripheral hardware has hot oil pump; Described hot plate inside has passage, and the inlet of passage is connected with hot oil pump, and the outlet of passage is connected with the heat conduction fuel tank; It is by hot oil pump conduction oil to be transported to carry out thermal cycle in the passage of hot plate and realize that described heater provides heat energy to hot plate.
The hot plate of above-mentioned Minton dryer adopts fine copper to manufacture, and surface blackening is handled.
The heat exchanger of above-mentioned Minton dryer places the heat conduction fuel tank, and conduction oil is heated.
The cooling recirculation system of above-mentioned Minton dryer is provided with subcooler.
An above-mentioned heat exchanger is in spacing between the anterior straight tube at least greater than 3 centimetres of the spacings between the straight tube that is in the rear portion.
It is 1.5 times of straight tube caliber at least that an above-mentioned heat exchanger is in spacing between the anterior straight tube.
The pressure parameter control range of the casing of above-mentioned Minton dryer is: absolute pressure 0Pa is to 1500Pa; The temperature parameter control range is :-40 ℃ to+120 ℃.
The pressure parameter control range of the condensation catcher of above-mentioned Minton dryer is: absolute pressure 20Pa is to 6000Pa; The temperature parameter control range is :-30 ℃ to+50 ℃.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) vavuum pump of the present invention helps reducing production costs and environmental protection for by lobe pump, sliding vane rotary pump and be connected the sundstrand pump that the condensation catcher that is used to reclaim organic solvent is between the two formed.(2) straight tube of condensation catcher of the present invention heat exchanger is that the condenser pipe dislocation is arranged, but strengthened the contact area of condensing body and condenser pipe, but condensing body and huyashi-chuuka (cold chinese-style noodles) collision frequency are many, can fully reclaim gas, and play the effect of cryosorption pump, so pressure decay rate is fast, vacuum effectiveness good can be carried out rapid draing in low temperature range.The auxiliary heating of the heat energy that produces when (3) the present invention utilizes freezing unit to freeze, and between freezing unit and condensation catcher, be provided with the subcooler that can carry out heat exchange, so energy consumption is lower.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below according to a particular embodiment of the invention and in conjunction with the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of condensation catcher among the present invention.
Fig. 3 is that the straight tube of a heat exchanger is arranged schematic diagram.
The specific embodiment
See Fig. 1, Minton dryer of the present invention has casing 1, vavuum pump 2 and heating component 3, and heating component 3 has the hot plate 31 that is arranged in the casing 1 and is arranged on the outer heat exchanger 32 that heat energy is provided for hot plate 31 of casing.
Vavuum pump 2 is made up of lobe pump 21 and sliding vane rotary pump 22, serial connection condensation catcher 4 between lobe pump 21 and the sliding vane rotary pump 22, and described condensation catcher 4 and compressor 51, expansion valve 57, heat exchanger 52 are formed cooling recirculation system 5.
Described heater 32 has heat conduction fuel tank 32-1, be provided with electric heating tube or No. two heat exchanger 32-2 in the heat conduction fuel tank, heat conduction fuel tank 32-1 is provided with hot oil pump 7 outward, and hot plate 31 inside have passage, the inlet of passage is connected with hot oil pump 7, and the outlet of passage is connected with heat conduction fuel tank 32-1; It is by hot oil pump 7 conduction oil to be transported to carry out thermal cycle in the passage of hot plate 31 and realize that described heater 32 provides heat energy to hot plate 31.Cooling recirculation system 5 also has compressor 51, oil content 53, heat exchanger 52, air cooler 54, liquid storage filling 55, subcooler 56 and expansion valve 57, described subcooler 56 is a heat-exchange device, have housing and be arranged on the interior coil pipe of housing, housing and coil pipe have import and outlet respectively, and condensate liquid is finished once circulation by housing → compressor 51 that compressor 51 → oil content 53 → heat exchanger 52 → air cooler 54 → liquid storage is irritated coil pipe → expansion valve 57 → condensation catcher 4 → subcooler 56 of 55 → subcooler 56 in cooling recirculation system 5.Heat exchanger 52 places heat conduction fuel tank 32-1, and conduction oil is heated.
See Fig. 2 and Fig. 3, the outside of a heat exchanger 40 of described condensation catcher 4 has housing, No. one heat exchanger 40 bends to straight tube 41, the bend pipe 42 three-dimensional coiled pipe of setting at interval by a long tube, straight tube 41 dislocation of a heat exchanger 40 are arranged, making the gas channel in the housing is bending channel, gas flow direction is in spacing between the anterior straight tube 41 greater than the spacing between the straight tube 41 that is in the rear portion perpendicular to 41, numbers heat exchangers of a heat exchanger straight tube; Heat exchanger is in spacing between the anterior straight tube 41 at least greater than 3 centimetres of the spacings between the straight tube 41 that is in the rear portion in the present embodiment, and it is 1.5 times of straight tube caliber at least that heat exchanger is in spacing between the anterior straight tube 41.
Material is evenly put into charging tray and is placed on casing 1 hot plate 31, close casing 1, starting up's cooling recirculation system 5, restart sliding vane rotary pump 22 and carry out forvacuum, when the startup that reaches lobe pump 21 when vacuum in the casing 1 requires, start lobe pump 21 and heater 32, enter the rapid draing stage, the pressure parameter control range of casing 1 is: absolute pressure 0Pa is to 1500Pa, and the temperature parameter control range of hot plate (31) is :-40 ℃ to+120 ℃.The temperature parameter control range of condensation catcher 4 is :-30 ℃ to+50 ℃, the pressure parameter control range is: absolute pressure 20Pa is to 6000Pa.The heat of heat conduction fuel tank 32-1 is provided by the heat exchanger 52 and the heating tube 32-2 of cooling recirculation system 5; Can not extract by sliding vane rotary pump by the condensing body, appropriately control condensation catcher 4 temperature and pressures, become liquid after making the condenser pipe heat exchange of gas and condensation catcher 4, and by the condensate collector discharging or reclaim, when reaching the dry back shutdown that requires.
Claims (9)
1, a kind of Minton dryer has casing (1), vavuum pump (2) and heating component (3), and heating component (3) has and is arranged on the hot plate (31) in the casing (1) and is arranged on casing (1) provides heat energy outward for hot plate heater (32); It is characterized in that: described vavuum pump (2) is made up of lobe pump (21) and sliding vane rotary pump (22), serial connection condensation catcher (4) is formed cooling recirculation system (5) by the heat exchanger (40) in the above-mentioned condensation catcher (4) and compressor (51), expansion valve (57), heat exchanger (52) between lobe pump (21) and the sliding vane rotary pump (22); The outside of a described heat exchanger (40) has housing, a heat exchanger (40) bends to straight tube (41), bend pipe (42) the three-dimensional coiled pipe of setting at interval by a long tube, straight tube (41) dislocation of a heat exchanger (40) is arranged, making the gas channel in the housing is bending channel, gas flow direction is perpendicular to straight tube (41), and a heat exchanger (40) is in spacing between the anterior straight tube (41) greater than the spacing between the straight tube that is in the rear portion (41).
2, Minton dryer according to claim 1 is characterized in that: described heater (32) has heat conduction fuel tank (32-1), is provided with electric heating tube or No. two heat exchangers (32-2) in the heat conduction fuel tank, and heat conduction fuel tank peripheral hardware has hot oil pump (5); Described hot plate (31) inside has passage, and the inlet of passage is connected with hot oil pump (5), and the outlet of passage is connected with heat conduction fuel tank (32-1); It is by hot oil pump (5) conduction oil to be transported to carry out thermal cycle in the passage of hot plate (31) and realize that described heater (32) provides heat energy to hot plate (31).
3, Minton dryer according to claim 2 is characterized in that: hot plate (31) adopts fine copper to manufacture, and surface blackening is handled.
4, Minton dryer according to claim 3 is characterized in that: described heat exchanger
(52) place heat conduction fuel tank (32-1), conduction oil is heated.
5, Minton dryer according to claim 4 is characterized in that: cooling recirculation system
(6) be provided with subcooler (56).
6, Minton dryer according to claim 1 is characterized in that: a described heat exchanger (40) is in spacing between the anterior straight tube (41) at least greater than 3 centimetres of the spacings between the straight tube that is in the rear portion (41).
7, Minton dryer according to claim 6 is characterized in that: it is 1.5 times of straight tube caliber at least that a heat exchanger (40) is in spacing between the anterior straight tube (41).
8, according to the described Minton dryer of one of claim 1-7, it is characterized in that: the pressure parameter control range of described casing (1) is: absolute pressure 0Pa is to 1500Pa; The temperature parameter control range is :-40 ℃ to+120 ℃.
9, according to the described Minton dryer of one of claim 1-7, it is characterized in that: the pressure parameter control range of described condensation catcher (4) is: absolute pressure 20Pa is to 6000Pa; The temperature parameter control range is :-30 ℃ to+50 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100082666A CN100494842C (en) | 2006-02-20 | 2006-02-20 | Vacuum drying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100082666A CN100494842C (en) | 2006-02-20 | 2006-02-20 | Vacuum drying apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101025330A CN101025330A (en) | 2007-08-29 |
| CN100494842C true CN100494842C (en) | 2009-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100082666A Expired - Fee Related CN100494842C (en) | 2006-02-20 | 2006-02-20 | Vacuum drying apparatus |
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| Country | Link |
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| CN (1) | CN100494842C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514108B (en) * | 2009-03-13 | 2012-05-30 | 中国科学院上海硅酸盐研究所 | Multistep drying method for gelatin casting biscuit |
| CN102297573A (en) * | 2010-06-25 | 2011-12-28 | 丽王化工(南通)有限公司 | Vacuum dryer |
| CN103307857A (en) * | 2012-03-16 | 2013-09-18 | 东莞新科技术研究开发有限公司 | Vacuum drying method |
| CN103102055B (en) * | 2013-01-25 | 2013-12-04 | 隋轶聪 | Energy-recycling type dryer |
| CN103123208B (en) * | 2013-03-11 | 2015-07-22 | 江苏安华电气自动化有限公司 | Multifunctional vacuum drying oven and stage drying process thereof |
| CN103196282A (en) * | 2013-03-28 | 2013-07-10 | 沈南飞 | Simple household drying box |
| CN105004154B (en) * | 2015-08-27 | 2017-09-19 | 胡奇峰 | Middle control wax boils drying equipment and its application method |
| CN107166897B (en) * | 2017-05-23 | 2019-04-09 | 中国农业大学 | A kind of method and apparatus of the dry Poria cocos of vacuum impulse |
| TWI626412B (en) * | 2017-08-18 | 2018-06-11 | Wei jun yi | Kitchen waste recycling vacuum drying system and method thereof |
| CN109140908A (en) * | 2018-08-17 | 2019-01-04 | 深圳市信宇人科技股份有限公司 | New and effective cold-hot type automatic vacuum oven |
| CN109579437B (en) * | 2018-11-16 | 2020-09-22 | 湖南美可达生物资源股份有限公司 | Constant-temperature oil bath drying system and method for improving total alkali content in macleaya cordata extract |
| CN110243145A (en) * | 2019-06-21 | 2019-09-17 | 深圳市时代高科技设备股份有限公司 | Vacuum drying system |
| CN114904864A (en) * | 2022-06-20 | 2022-08-16 | 上海亘满科技有限公司 | High-cleanness drying and replacing integrated equipment and using method thereof |
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| US5353519A (en) * | 1991-10-30 | 1994-10-11 | Saibu Gas Co., Ltd. | Vacuum drying equipment |
| CN2399690Y (en) * | 2000-01-05 | 2000-10-04 | 沈阳新阳速冻设备制造公司 | Vacuum freezing and drying appts for foodstuff |
| CN2436899Y (en) * | 2000-08-21 | 2001-06-27 | 边新虎 | Timber vacuum dry box |
| CN2651678Y (en) * | 2003-06-26 | 2004-10-27 | 上海俊乐制冷自控元件有限公司 | Multifunctional experimental refrigerating drier |
| CN2670877Y (en) * | 2003-12-02 | 2005-01-12 | 管永建 | Heat recovering vacuum freezing drying case with frequency variable circulating pump |
| CN2695888Y (en) * | 2004-04-29 | 2005-04-27 | 上海远东制药机械总厂 | Vacuum freezing drier |
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2006
- 2006-02-20 CN CNB2006100082666A patent/CN100494842C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5353519A (en) * | 1991-10-30 | 1994-10-11 | Saibu Gas Co., Ltd. | Vacuum drying equipment |
| CN2399690Y (en) * | 2000-01-05 | 2000-10-04 | 沈阳新阳速冻设备制造公司 | Vacuum freezing and drying appts for foodstuff |
| CN2436899Y (en) * | 2000-08-21 | 2001-06-27 | 边新虎 | Timber vacuum dry box |
| CN2651678Y (en) * | 2003-06-26 | 2004-10-27 | 上海俊乐制冷自控元件有限公司 | Multifunctional experimental refrigerating drier |
| CN2670877Y (en) * | 2003-12-02 | 2005-01-12 | 管永建 | Heat recovering vacuum freezing drying case with frequency variable circulating pump |
| CN2695888Y (en) * | 2004-04-29 | 2005-04-27 | 上海远东制药机械总厂 | Vacuum freezing drier |
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| CN101025330A (en) | 2007-08-29 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Fanqun Drying Equipment Co., Ltd. Assignor: Fan Bingxi Contract record no.: 2010320000723 Denomination of invention: Vacuum drying apparatus Granted publication date: 20090603 License type: Common License Open date: 20070829 Record date: 20100603 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20160220 |