CN108050778A - Vacuum dryer system and the low-temperature vacuum drying cabinet with the system - Google Patents
Vacuum dryer system and the low-temperature vacuum drying cabinet with the system Download PDFInfo
- Publication number
- CN108050778A CN108050778A CN201711224605.9A CN201711224605A CN108050778A CN 108050778 A CN108050778 A CN 108050778A CN 201711224605 A CN201711224605 A CN 201711224605A CN 108050778 A CN108050778 A CN 108050778A
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- CN
- China
- Prior art keywords
- temperature
- cabinet
- vacuum
- cavity
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/003—Supply-air or gas filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
- F26B23/06—Heating arrangements using electric heating resistance heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
Abstract
The invention discloses a kind of low-temperature vacuum drying cabinet, including cabinet, heating unit, vacuum plant, control device, wherein, heating unit, vacuum plant is electrically connected in the IC main controllers of control device；In vacuum plant, one high efficiency particle air filter is mounted on left upper portion in cabinet and is connected with solenoid valve connection tracheae, pressure transmitter is mounted on the outer top of cavity, vacuum pump is mounted on bottom in cabinet and is connected with connection tracheae with cavity, and noise elimination condenser is mounted on bottom in cabinet and is connected with connection tracheae with vacuum pump.The beneficial effects of the present invention are the present invention realizes the processing of the low temperature drying to cecum and small gaps tube chamber instrument, is switched fast air by inside and outside pressure difference and easily exchanges.
Description
Technical field
The present invention relates to field of medical device, and in particular to a kind of low-temperature vacuum drying cabinet.
Background technology
The medical instruments such as various precision instruments, tube chamber instrument present in a large amount of medical institutions are difficult to thorough before sterilization at present
The problem of bottom is dried, most of tube chamber instrument are for cecum and the long and narrow tube chamber instrument of minor diameter, while such instrument is because warm
Sensitive materials and design feature, equal non-refractory.
Clinical main drying means at present：High-temperature hot-air dries up and manually air gun drying effectively can not be handled or existed
Larger hidden danger.High temperature drying mode is also easy to produce wood color and deepens, Surface hardened layer, causes the insulated handle plastic cement aging of tube chamber instrument and leaks
Conductance electricity.The present invention relates to temperature control within 60 degrees Celsius.Artificial air gun drying mode is extremely difficult, and to be blown into gas blind
Inside end pipe chamber instrument.
The content of the invention
The present invention relates to a kind of drying system for handling tube chamber instrument inner wall, to solve medical instrument tube chamber class instrument inner wall
The problem of quick thoroughly dry under cryogenic conditions can not be carried out after cleaning.From liquid water, the boiling point under subnormal ambient reduces the present invention
Characteristic, the rapid air movement that the pressure difference being mutated by instrument inside and outside is brought, establish pressure change and temperature change it
Between mapping relations, so as to fulfill be able to after cavity inner wall liquid water explosive evaporation Quick air exchange, it is fast to reach cavity inner wall
It is fast thoroughly dry so that tube chamber instrument perplexs from high temperature ageing, easily dry problem before processing sterilizing.
The key point of the present invention is to reach tube chamber under low temperature by the mapping relations between pressure change and temperature change
Mode thoroughly dry inside instrument.Good control and design, outstanding PID and working cycles algorithm are had both simultaneously, remarkably
Man-machine interface, full-automatic vacuum drying flow, easily remote maintenance and data traceability, are by following technical solution
It realizes.
A kind of low-temperature vacuum drying cabinet, including cabinet, heating unit, vacuum plant, control device, wherein, including preceding
Afterwards the middle part on two sides respectively open up there are one visual hermatic door, in cabinet middle part working cavity；
Heating unit includes multiple PTC heating units, a temperature-detecting device and a temperature control equipment；
Vacuum plant includes air inlet high efficiency particle air filter, connection tracheae, solenoid valve, pressure transmitter, vacuum pump, noise elimination
Condenser；
Control device includes display, PIC main controllers；
Heating unit, vacuum plant is electrically connected in PIC main controllers；
One air inlet high efficiency particle air filter is mounted on left upper portion in cabinet and is connected with solenoid valve connection tracheae,
Pressure transmitter is mounted on the outer top of working cavity, and vacuum pump is mounted on bottom in cabinet and is connected with connection tracheae and working cavity
It connects, noise elimination condenser is mounted on bottom in cabinet and is connected with connection tracheae with vacuum pump.
System based on above device, including：Control and display system, pressure and temperature measurement system, PTC heating system
System, vacuum pump, working cavity and sealing system.Using MICROCHIP PIC32MZ series monolithics as core processor, take
Build control system.It is realized by control system and each work package of equipment is controlled, by PTC heating elements to working chamber
Body is heated, and is needed to control between 10-60 degrees Celsius according to operating condition, is then started vacuum pump and working cavity is carried out
It vacuumizes, as cavity internal pressure constantly declines, can realize at the corresponding temperature, working cavity domestic demand dry goods institute
The moisture vaporization of attachment.The inside and outside exchange gas of multifrequency time is carried out at the same time, air exchange of the inside containing steam is gone out, to realize phase
To the drying under low temperature.
After temperature reaches target temperature, according to equipment requirement, working cavity keeps temperature constant state.
After pressure value reaches setting value, according to equipment requirement, working cavity keeps vacuum state.
Temperature change is persistently monitored in the process, and during below or above target temperature, PID adaptively adjusts heater work
Make, realize temperature control.
Each working condition is persistently monitored in the process, and output switching signal when having exception starts warning light, buzzer etc..
The beneficial effects of the invention are as follows：The present invention is realized at the low temperature drying to cecum and small gaps tube chamber instrument
Reason, is switched fast air by inside and outside pressure difference and easily exchanges.
Description of the drawings
Fig. 1 is the overall structure front view of the present invention.
Fig. 2 is the overall structure side view of the present invention.
Fig. 3 is the structure diagram of specific embodiments of the present invention.
Fig. 4 is the electrical block diagram of vacuum dryer system.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
It refer to Fig. 1 to Fig. 2, a kind of low-temperature vacuum drying cabinet, including cabinet 1, heating unit 2, vacuum plant 3, control
Device 4 processed.
Cabinet 1 is placed vertically.Cabinet 1 is respectively opened up including front and rear two Middle face there are one visual hermatic door 12, in cabinet 1
The cavity 13 at middle part.
Heating unit 2 includes nine PTC and heats 31, and a temperature detection 32 and a temperature control 33.
Vacuum plant 3 includes air inlet high efficiency particle air filter 21, connection tracheae 22, solenoid valve 23, pressure transmitter 24, true
Sky pump 25, noise elimination condenser 26.
Control device 4 includes two displays, 41, PIC main controllers 42.
Heating unit 2, vacuum plant 3 is electrically connected in PIC main controllers 42.
Nine PTC heating 31 are separately mounted to outside of cavity 13 or so and bottom, a temperature detection 32 and a temperature
Degree control 33 is mounted on the outer top of cavity 13.
One air inlet high efficiency particle air filter 21 is mounted on left upper portion and a solenoid valve 23 connection tracheae in cabinet 1
22 connections, pressure transmitter 24 are mounted on the outer top of cavity 13, vacuum pump 25 be mounted in cabinet 1 bottom with connection tracheae 22 with
Cavity 13 connects, and noise elimination condenser 26 is mounted on bottom connection tracheae 22 in cabinet 1 and is connected with vacuum pump 25.
Two displays 41 are placed in the middle mounted on front upper in cabinet 1, and PIC main controllers 42 are mounted on 1 internal upper part of cabinet.
As shown in Figure 3-4, the system based on above device, including：Control and display system, pressure and temperature survey system
System, PTC heating systems, vacuum pump, working cavity and sealing system.
Wherein, control uses MICROCHIP PIC32MZ series monolithics to be built as core processor with display system
Control system, display use LOD liquid crystal displays.It is realized by control system and each work package of equipment is controlled,
PTC heating systems heat working cavity by PTC heating elements, need to control according to operating condition Celsius in 10-60
Between degree, then start vacuum pump and working cavity is vacuumized, as cavity internal pressure constantly declines, can realize
Under relevant temperature, intracavitary needs the moisture accompanying by dry goods to vaporize.The inside and outside exchange gas of multifrequency time is carried out at the same time, by inside
Air exchange containing steam goes out, to realize the drying under relative low temperature.
The principle of the present invention is：Liquid water evaporation is exactly the process that liquid hydrone is left away from liquid level.Due in liquid
Hydrone is all ceaselessly making random motion, the size of their mean kinetic energy is that the temperature with liquid in itself is adapted.
Due to the random motion and mutually collision of molecule, always there are some molecules that there is also bigger than mean kinetic energy move at any time
Energy.These hydrones with sufficiently large kinetic energy, as near liquid level, kinetic energy is intermolecular in liquid more than overcoming when flying out
Gravitation needed for work(when, these hydrones outwards fly out with regard to that can depart from liquid level, become the vapour of this liquid, here it is evaporations
Phenomenon.
In evaporation process, liquid evaporation, which is not only absorbed heat, also makes the effect of surrounding objects cooling, passes through external heat at this time
Source temperature compensates so that evaporation process not multi-cycle progress.
In addition to providing heat and increasing liquid water kinetic energy, by reducing pressure hydrone in liquid can also be made more living
Jump, to increase the rate of liquid water evaporation.
The air exchange of a large amount of humidity is gone out by the rapid air movement that pressure change is formed.
As shown in Figure 3-4, in specific embodiments of the present invention, system electrical structure uses 220V Alternating Current Power Supplies, and logic is defeated
Enter output for 5V, every self-test can be carried out by being first powered on rear complete machine, the pattern then selected according to user determine operating temperature and
Pressure spot and extraction gas cycling condition etc., temperature sensor 32, model are that PT1000 can carry out relevant temperature detection, sampled measurements
Circuit can carry out sampling calibration and identify, after obtaining the sampling of temperature sensor 32 by I/O drive circuit boards 55, system confirms
After needing heating, start PID programs, be output to solid-state relay 56,9 PTC heating elements 31 of control are heated, and arrival is set
After determining temperature spot, vacuum pump 25 starts action and is evacuated and reaches specified pressure point, working chamber body temperature and pressure condition
Boiling vapor state is now in, conversion of the moisture content to steam is realized, keeps the state after a certain period of time, opens vent valve to work
Make to deflate in cavity, while continue to be evacuated, realize the exchange of gas in working cavity.The cycling is different according to object to be dried,
Cycling condition and number carry out corresponding different setting, to realize final drying.
In appliance circuit structure, whole system needs power module 51 to power, and ensures the normal work of each module, and electric leakage is protected
Shield switch 52 and overcurrent protection switch 54 are connected with power module, for ensureing circuit Electrical Safety, are connected with main control board 42
Connect and connect be controlled by it further include headlamp 61, tripper 62, gate inhibition 63 and breath light 64, governor circuit also controls and electricity
Road connects display screen 41 and the capacitance plate with display screen cooperation, for the conversion of touching signals.
After temperature reaches target temperature, according to equipment requirement, by temperature protection switch 52, working cavity constant temperature shape is kept
State.
After pressure value reaches setting value, according to equipment requirement, working cavity vacuum state is kept.
Temperature change is persistently monitored in the process, and during below or above target temperature, PID adaptively adjusts heater work
Make, realize temperature control.
Each working condition is persistently monitored in the process, and output switching signal when having exception starts warning light, buzzer etc..
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of low-temperature vacuum drying cabinet, including cabinet, heating unit, vacuum plant, control device, wherein, including front and rear
The middle part on two sides respectively opens up that there are one the working cavities at middle part in visual hermatic door, cabinet；
Heating unit includes multiple PTC heating units, a temperature-detecting device and a temperature control equipment；
Vacuum plant includes air inlet high efficiency particle air filter, connection tracheae, solenoid valve, pressure transmitter, vacuum pump, condensation of eliminating the noise
Device；
Control device includes display, PIC main controllers；
Heating unit, vacuum plant is electrically connected in PIC main controllers；
One air inlet high efficiency particle air filter is mounted on left upper portion in cabinet and is connected with solenoid valve connection tracheae, pressure
Transmitter is mounted on the outer top of cavity, and vacuum pump is mounted on bottom in cabinet and is connected with connection tracheae with cavity, noise elimination condenser
Bottom is connected with connection tracheae with vacuum pump in cabinet.
2. low-temperature vacuum drying cabinet according to claim 1, which is characterized in that the cabinet is made of stainless steel, vertically
It places.
3. low-temperature vacuum drying cabinet according to claim 1, which is characterized in that multiple PTC heating are separately mounted to work
Outside of cavity or so and bottom, temperature-detecting device and temperature control equipment are separately mounted to the outer top of working cavity.
4. low-temperature vacuum drying cabinet according to claim 1, which is characterized in that control device include two displays, two
A display is placed in the middle mounted on front upper in cabinet, and PIC main controllers are mounted on cabinet internal upper part.
5. low-temperature vacuum drying cabinet according to claim 1, which is characterized in that the low-temperature vacuum drying cabinet further includes use
In lasting each working condition of monitoring, there is the switching signal exported during exception, start warning light, buzzer.
6. a kind of vacuum dryer system, which is characterized in that the system comprises control and display system, pressure and temperature are surveyed
Amount system, PTC heating systems, vacuum pump, working cavity and sealing system.
7. system according to claim 6, which is characterized in that PTC heating systems are by PTC heating elements to working cavity
It is heated, needs to control between 10-60 degrees Celsius according to operating condition.
8. system according to claim 6, which is characterized in that the vacuum pump vacuumizes working cavity, with
In working cavity pressure constantly decline, it can be achieved that after moisture vaporization accompanying by working chamber domestic demand dry goods multifrequency time it is inside and outside
Exchange gas discharge working cavity.
9. system according to claim 6, which is characterized in that after temperature, pressure value reach setting value, working cavity is kept
Constant temperature, vacuum state, pressure and temperature measurement system persistently monitor temperature change, and during below or above setting value, PID is adaptive
Heater work is adjusted, realizes temperature control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711224605.9A CN108050778A (en) | 2017-11-29 | 2017-11-29 | Vacuum dryer system and the low-temperature vacuum drying cabinet with the system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711224605.9A CN108050778A (en) | 2017-11-29 | 2017-11-29 | Vacuum dryer system and the low-temperature vacuum drying cabinet with the system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108050778A true CN108050778A (en) | 2018-05-18 |
Family
ID=62121092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711224605.9A Pending CN108050778A (en) | 2017-11-29 | 2017-11-29 | Vacuum dryer system and the low-temperature vacuum drying cabinet with the system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108050778A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826855A (en) * | 2018-08-08 | 2018-11-16 | 万盛精密钣金江苏有限公司 | A kind of medical vacuum drying cupboard and its working method |
| CN108844299A (en) * | 2018-08-08 | 2018-11-20 | 万盛精密钣金江苏有限公司 | A kind of medical vacuum drying cupboard and its working method with filtering function |
| CN108870886A (en) * | 2018-08-08 | 2018-11-23 | 万盛精密钣金江苏有限公司 | A kind of medical vacuum drying cupboard using water-holding cup |
| TWI813908B (en) * | 2020-10-05 | 2023-09-01 | 勤城工業有限公司 | vacuum dryer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0997695A2 (en) * | 1998-10-28 | 2000-05-03 | Kabushikikaisha Matsui Seisakusho | Vacuum-type automatic dehumidifying and drying apparatus for powdered or granular material |
| CN103090645A (en) * | 2011-11-01 | 2013-05-08 | 四川汇利实业有限公司 | Water condensation preventing microwave vacuum drier |
| CN103288154A (en) * | 2013-05-15 | 2013-09-11 | 中色科技股份有限公司 | Device and method for recovering metal material surface cleaning agent |
| CN204923695U (en) * | 2015-09-05 | 2015-12-30 | 陈健凯 | A vacuum freezing drying device for food processing |
| CN206430506U (en) * | 2017-01-22 | 2017-08-22 | 深圳飞世尔新材料股份有限公司 | A kind of low-temperature vacuum drying device of tape surface |
-
2017
- 2017-11-29 CN CN201711224605.9A patent/CN108050778A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0997695A2 (en) * | 1998-10-28 | 2000-05-03 | Kabushikikaisha Matsui Seisakusho | Vacuum-type automatic dehumidifying and drying apparatus for powdered or granular material |
| CN103090645A (en) * | 2011-11-01 | 2013-05-08 | 四川汇利实业有限公司 | Water condensation preventing microwave vacuum drier |
| CN103288154A (en) * | 2013-05-15 | 2013-09-11 | 中色科技股份有限公司 | Device and method for recovering metal material surface cleaning agent |
| CN204923695U (en) * | 2015-09-05 | 2015-12-30 | 陈健凯 | A vacuum freezing drying device for food processing |
| CN206430506U (en) * | 2017-01-22 | 2017-08-22 | 深圳飞世尔新材料股份有限公司 | A kind of low-temperature vacuum drying device of tape surface |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826855A (en) * | 2018-08-08 | 2018-11-16 | 万盛精密钣金江苏有限公司 | A kind of medical vacuum drying cupboard and its working method |
| CN108844299A (en) * | 2018-08-08 | 2018-11-20 | 万盛精密钣金江苏有限公司 | A kind of medical vacuum drying cupboard and its working method with filtering function |
| CN108870886A (en) * | 2018-08-08 | 2018-11-23 | 万盛精密钣金江苏有限公司 | A kind of medical vacuum drying cupboard using water-holding cup |
| TWI813908B (en) * | 2020-10-05 | 2023-09-01 | 勤城工業有限公司 | vacuum dryer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180518 |
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| RJ01 | Rejection of invention patent application after publication |