CN109059449A - A kind of high vacuum dry device - Google Patents
A kind of high vacuum dry device Download PDFInfo
- Publication number
- CN109059449A CN109059449A CN201811000856.3A CN201811000856A CN109059449A CN 109059449 A CN109059449 A CN 109059449A CN 201811000856 A CN201811000856 A CN 201811000856A CN 109059449 A CN109059449 A CN 109059449A
- Authority
- CN
- China
- Prior art keywords
- high vacuum
- material cavity
- vacuum
- valve group
- pump
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 150000002367 halogens Chemical class 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 3
- 125000005843 halogen group Chemical group 0.000 claims 1
- 230000002452 interceptive effect Effects 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract description 17
- 238000001035 drying Methods 0.000 abstract description 9
- 238000005086 pumping Methods 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000005457 ice water Substances 0.000 description 5
- 239000003595 mist Substances 0.000 description 3
- 238000001291 vacuum drying Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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
- 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
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- 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
- F26B5/06—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 the process involving freezing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention relates to glass cleaning drying field more particularly to a kind of high vacuum dry device, which includes: material cavity, high vacuum pump group, high vacuum valve group, vacuum breaker valve group, heating device, cryogenic system, sealing device and water cooling equipment；Material cavity is equipped with chamber door, and material cavity interior bottom portion is equipped with material basket limited block, and material cavity surrounding inner wall is equipped with heating device；Cryogenic system is connect with material cavity by vacuum pipe；High vacuum pump group is connected by being equipped with inside the vacuum pipe and material cavity of high vacuum valve group；Vacuum breaker valve group is connected with inside material cavity by vacuum pipe；Material cavity, high vacuum valve group, in vacuum breaker valve group, is equipped with sealing device by the position that vacuum pipe connects at high vacuum pump group；Water cooling equipment is connected by water pipe with high vacuum valve group, for cooling down to high vacuum valve group.Classification is carried out to material cavity to vacuumize, is freezed simultaneously, accelerates vacuum pumping rate, under vacuum conditions material drying, guarantees material yield, reduces production cost.
Description
Technical field
The present invention relates to the dry field of glass cleaning more particularly to a kind of high vacuum dry devices.
Background technique
With popularizing for full frame smart phone, mobile phone industry is increasing for the demand of the glass of high transparency, and by
In glassware, beautiful and feel is preferable, and many mobile phone producers, which have begun, all uses glassware for mobile phone dorsal shield, removes this
Except, in other industries, the use of the glassware of the high grade of transparency is also more and more extensive, and the glass of the high grade of transparency was producing
Cheng Zhong will undergo the operation of a series of complex such as cutting, hardening, polishing, cleaning, plating, wherein the cleaning before plated film will guarantee
Glass surface has not a particle of impurity, and the glass after cleaning will be dried thoroughly.
The prior art is typically all to be rinsed using cleaning machine to glass in toilet, then carries out wind to glass
It is dry, but air-dry it is inefficient, and toilet be not it is completely dustless, glass, which is exposed to air-dry in air, can be stained with ash
Dirt causes glass yields low, and the amount of doing over again is big, increases production cost.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of high vacuum dry device is provided, above-mentioned skill is solved
Art problem.
The present invention realizes that the technical solution of above-mentioned purpose is:
A kind of high vacuum dry device, comprising: material cavity, high vacuum pump group, high vacuum valve group, vacuum breaker valve group, heating device,
Cryogenic system, sealing device and water cooling equipment；
The material cavity is equipped with chamber door, and the material cavity interior bottom portion is equipped with material basket limited block, the material cavity surrounding inner wall
It is equipped with the heating device；
The cryogenic system is connected to the material cavity by vacuum pipe；
The high vacuum pump group is connected to by being equipped with inside high vacuum valve group and vacuum pipe and the material cavity；
The vacuum breaker valve group is connected to inside the material cavity by vacuum pipe；
The material cavity, the high vacuum valve group, in the vacuum breaker valve group, is connected the high vacuum pump group by vacuum pipe
The position connect is equipped with the sealing device；
The water cooling equipment is connected by water pipe with the high vacuum valve group, for cooling down to the high vacuum valve group.
The invention has the benefit that providing a kind of high vacuum dry device, material cavity is carried out by high vacuum pump group
It is classified vacuum pumping, and the hydrogenesis in material cavity is discharged at water mist by cryogenic system, the pumping for accelerating material cavity is true
Then air speed degree, while reducing the moisture of material cavity integrated environment heats up to material cavity by heat by lalonge lamp, to material into
Row drying, accelerates Drying Rates, and material is allowed to dry under vacuum conditions, ensure that the cleanliness of drying materials environment, it is ensured that
Without dust in material cavity, product defect rate is reduced, production cost is effectively reduced.
Detailed description of the invention
Fig. 1 shows a kind of high vacuum dry apparatus structure schematic diagram suitable for the embodiment of the present invention；
Fig. 2 shows a kind of automatically controlled figure of vacuum system of high vacuum dry device suitable for the embodiment of the present invention；
Fig. 3 shows a kind of material cavity schematic internal view of high vacuum dry device suitable for the embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, a kind of high vacuum dry device, including material cavity 1, chamber door 2, heating device 3, cryogenic system 4, height
Vacuum valve group 5, molecular pump 6, the first mechanical pump 7, the second mechanical pump 8, lobe pump 9, connecting pipe 10.
In embodiments of the present invention, cryogenic system 4 is the deep cooling copper pipe for protruding into material cavity segment, is externally connected to freezing
Machine, refrigerator are cooled down by deep cooling copper pipe to material cavity, are not shown in the drawings refrigerator, but its set-up mode is routine techniques
Means are not described further herein.
In embodiments of the present invention, molecular pump 6, the first mechanical pump 7, the second mechanical pump 8, lobe pump 9 collectively constitute Gao Zhen
Empty pump group 5, and high vacuum pump group is connected with frozen water machine by ice water pipeline, frozen water machine generates ice water and cools down for high vacuum pump group,
One frozen water machine provides ice water cooling simultaneously for the high vacuum pump group of 4 high-vacuum installations, is not shown in the drawings frozen water machine, but
Its set-up mode is conventional technical means, is not specifically described herein.
In embodiments of the present invention, molecular pump 6, the first mechanical pump 7, the second mechanical pump 8, lobe pump 9 all pass through vacuum tube
Road is mounted on the right side of material cavity, and high vacuum pump group, high vacuum valve group and cryogenic system collective effect provide one for material cavity
The automatically controlled figure of the dry environment of high vacuum, connection relationship and vacuum system as shown in Fig. 2, wherein take out valve 501, preceding step valve in advance
503, it pumps vent valve 504 and three high thresholds 502 collectively forms high vacuum valve group, enter atmos-valve 1102 slowly and enter atmos-valve fastly
1101 constitute vacuum breaker valve group, and three lobe pumps 9, two first of molecular pump 6, one connect mechanical pump 7 and one second mechanical
Pump 8 constitutes high vacuum pump group, and cryogenic system 4 is deep cooling copper pipe, is externally connected to refrigerator in material cavity 1；Wherein, valve is taken out in advance
501 interlock with preceding step valve 503, and one is opened then another closing；Material cavity 1 is also circumscribed with compound gauge vacuum meter 12 and is used to measure
Vacuum degree in material cavity, molecular pump pipeline is equipped with Pirani gauge vacuum meter 13, for measuring the true of molecular pump vacuum pipe
Reciprocal of duty cycle is designed with high temperature resistant, etch-proof sealing device at above-mentioned all connecting interfaces, for preventing equipment from leaking vacuum.
In embodiments of the present invention, material cavity 1 is in rectangular parallelepiped structure, as shown in figure 3, inner wall polishes smooth, bottom is equipped with
Material basket limiting device 13 influences dry materials effect, material for preventing material basket from changing position in vacuum drying
The position of basket limiting device is adjusted according to the actual size of material basket；Heating device 3 is halogen lamp, is mounted on material by lamp bracket
On the inner wall of chamber 1,1 liang of long side of the material cavity respectively installs two lamp brackets, and two short sides respectively install 1 lamp bracket, each lamp bracket
3 halogen lamp are installed, the power of every halogen lamp is 300W.
The course of work that the embodiment of the present invention carries out vacuumizing and drying to glass is given below:
Device booting preheating 30 minutes, the second mechanical pump 8 for maintaining pump group is in operating status to be preheated, completed by preheating
Afterwards, the material basket for filling glass to be dried is put into material cavity, closes chamber door, opened pre- pumping valve 501, simultaneously close off preceding step valve
503, high threshold 6 is in close state at this time, opens the first mechanical pump 7 and lobe pump 9 brings into operation and carries out thick take out very to material cavity
Sky, when compound gauge vacuum meter 12 measures vacuum degree reaches preset value in material cavity after (6*10 of the embodiment of the present invention-3Pa), close
It closes pre- pumping valve 501, and step valve 502 before opening, while successively opening three high thresholds, 502, three molecular pumps 6, to material cavity into one
Pumping high vacuum is walked, while cryogenic system brings into operation, and temperature in material cavity is dropped to -130 DEG C by deep cooling copper pipe, makes air
In moisture condensation be discharged at water mist, accelerate the extraction speed of high vacuum；It is preset when the vacuum degree in material cavity reaches high vacuum
(the embodiment of the present invention 10 when value-3Pa), cryogenic system is closed, and molecular pump maintains operating status, keeps material cavity vacuum degree not
Become, open heating device, increases material cavity temperature, glass is dried.After the completion of drying, heating device, molecule are closed
Pump and high threshold are opened and enter atmos-valve slowly, start to carry out vacuum breaker to material cavity, when vacuum values reach vacuum breaker preset value (this
Inventive embodiments are 6*10-3Pa) when, unlatching enters atmos-valve fastly, the vacuum state of material cavity is quickly abolished, when the gas of material cavity
When pressing consistent with atmospheric pressure, and vacuum breaker valve group can be closed, open chamber door, take out glass.
In embodiments of the present invention, when high vacuum pump group brings into operation, frozen water machine starts simultaneously at operation, passes through ice water pipe
Road and vacuum pump group are that water pipe forms a circulation, and it is that high vacuum pump group cools down that frozen water machine, which manufactures ice water, and frozen water machine can be with
It is simultaneously the high vacuum pump group cooling of 4 high vacuum dry devices.
In embodiments of the present invention, high vacuum pump group bottom is equipped with rack, is used to support and stablizes high vacuum pump group, will be high
Vacuum pump group is isolated with ground, prevents pump group moisture damage.
The embodiment of the present invention carries out classification vacuum pumping to material cavity by high vacuum pump group, and is made by cryogenic system
Hydrogenesis in material cavity is discharged at water mist, accelerates the vacuum pumping rate of material cavity, while reducing material cavity integrated environment
Moisture, then heated up by heat by lalonge lamp to material cavity, glass dried, accelerated Drying Rates, and glass is allowed to exist
It is dried under vacuum environment, ensure that the cleanliness of glass drying environment, it is ensured that without dust in material cavity, it is bad to reduce product
Rate effectively reduces production cost.
As further embodiment of the present invention, this high vacuum dry device further includes automatic control system and human-computer interaction dress
It sets, wherein human-computer interaction device is provided with touch display screen, and automatic control system can automatically control this according to the parameter of setting
High vacuum dry device realizes above-mentioned vacuum drying process, can also be manually by touch display screen to above-mentioned vacuum drying
Process disengaging operation.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of high vacuum dry device characterized by comprising material cavity, high vacuum pump group, high vacuum valve group, vacuum breaker
Valve group, heating device, cryogenic system, sealing device and water cooling equipment；
The material cavity is equipped with chamber door, and the material cavity interior bottom portion is equipped with material basket limited block, the material cavity surrounding inner wall
It is equipped with the heating device；
The cryogenic system is fixedly mounted on inside the material cavity on short side side wall；
The high vacuum pump group is connected to by being equipped with inside high vacuum valve group and vacuum pipe and the material cavity；
The vacuum breaker valve group is connected to inside the material cavity by vacuum pipe；
The material cavity, the high vacuum valve group, in the vacuum breaker valve group, is connected the high vacuum pump group by vacuum pipe
The position connect is equipped with the sealing device；
The water cooling equipment is connected by water pipe with the high vacuum valve group, for cooling down to the high vacuum valve group.
2. a kind of high vacuum dry device according to claim 1, which is characterized in that the material cavity is in cuboid knot
Structure, inner wall polish smooth；The chamber door is arranged at the top of the material cavity, and rotates with a long side at the top of the material cavity
Connection.
3. a kind of high vacuum dry device according to claim 1, which is characterized in that the heating device is halogen lamp,
It is mounted on by lamp bracket on the inner wall of the material cavity, two long side of material cavity respectively installs two lamp brackets, two short sides
1 lamp bracket is respectively installed in side, and each lamp bracket installs 3 halogen lamp, and the power of every halogen lamp is 300W.
4. a kind of high vacuum dry device according to claim 1, which is characterized in that the cryogenic system is refrigerator,
The deep cooling copper pipe of the refrigerator is fixedly mounted on the short side inner wall of the material cavity, for drop inside the material cavity
Temperature.
5. a kind of high vacuum dry device according to claim 1, which is characterized in that the high vacuum pump group includes:
One mechanical pump, the second mechanical pump, lobe pump and molecular pump；Second mechanical pump is used to maintain pump group in operating status,
For tentatively vacuumizing, the molecular pump is vacuumized for essence for first mechanical pump and the lobe pump；Described first is mechanical
Pump, second mechanical pump, the molecular pump and the lobe pump pass through vacuum valve and vacuum pipe and the material respectively
Chamber is connected, and each vacuum valve constitutes the vacuum valve group.
6. a kind of high vacuum dry device according to claim 1, which is characterized in that the vacuum breaker valve group includes entering slowly
Atmos-valve and enter atmos-valve fastly, it is described to enter atmos-valve slowly and described enter atmos-valve fastly and connected by vacuum pipe and the material cavity
It connects.
7. a kind of high vacuum dry device according to claim 1, which is characterized in that the water cooling equipment is frozen water machine,
The frozen water machine is connected by water pipe with the high vacuum valve group, for cooling down to the high vacuum valve group.
8. a kind of high vacuum dry device according to claim 1, which is characterized in that the sealing device uses high temperature resistant
With etch-proof material.
9. a kind of high vacuum dry device according to claim 1, which is characterized in that high vacuum pump group bottom is equipped with
Rack is used to support the high vacuum pump group and is isolated with ground.
10. a kind of high vacuum dry device according to claim 1, which is characterized in that further include automatic control system and
Human-computer interaction device, the automatic control system are used to automatically control the workflow of the high vacuum dry device, the people
Machine interactive device is arranged on the outside of the material cavity, for manually controlling the course of work and technique of the high vacuum dry device
Parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000856.3A CN109059449A (en) | 2018-08-30 | 2018-08-30 | A kind of high vacuum dry device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000856.3A CN109059449A (en) | 2018-08-30 | 2018-08-30 | A kind of high vacuum dry device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109059449A true CN109059449A (en) | 2018-12-21 |
Family
ID=64757809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811000856.3A Pending CN109059449A (en) | 2018-08-30 | 2018-08-30 | A kind of high vacuum dry device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109059449A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1956758A (en) * | 2004-05-01 | 2007-05-02 | 农业研究有限公司 | Drying process and apparatus |
| CN101046350A (en) * | 2006-03-28 | 2007-10-03 | 顺德职业技术学院 | Vacuum freeze drier |
| CN201964745U (en) * | 2011-02-28 | 2011-09-07 | 南通思瑞机器制造有限公司 | Worktable and vacuum chamber structure of vacuum drier |
| CN102818439A (en) * | 2012-08-30 | 2012-12-12 | 西安隆基硅材料股份有限公司 | Drying device and drying method for high-purity silicon materials |
| CN204299835U (en) * | 2014-12-08 | 2015-04-29 | 连云港杰瑞自动化有限公司 | A kind of vacuum heat-insulating plate production pumped vacuum systems |
| CN104832398A (en) * | 2015-04-14 | 2015-08-12 | 山西南烨立碁光电有限公司 | Vacuum extraction equipment |
| CN105588409A (en) * | 2015-12-07 | 2016-05-18 | 无锡市医用仪表厂 | Pharmaceutical drying equipment |
| CN107606966A (en) * | 2017-11-23 | 2018-01-19 | 长兴华阁耐物流装备有限公司 | A kind of condenser is classified vaccum-pumping equipment |
| CN208832872U (en) * | 2018-08-30 | 2019-05-07 | 深圳市智创谷技术有限公司 | A kind of high vacuum dry device |
-
2018
- 2018-08-30 CN CN201811000856.3A patent/CN109059449A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1956758A (en) * | 2004-05-01 | 2007-05-02 | 农业研究有限公司 | Drying process and apparatus |
| CN101046350A (en) * | 2006-03-28 | 2007-10-03 | 顺德职业技术学院 | Vacuum freeze drier |
| CN201964745U (en) * | 2011-02-28 | 2011-09-07 | 南通思瑞机器制造有限公司 | Worktable and vacuum chamber structure of vacuum drier |
| CN102818439A (en) * | 2012-08-30 | 2012-12-12 | 西安隆基硅材料股份有限公司 | Drying device and drying method for high-purity silicon materials |
| CN204299835U (en) * | 2014-12-08 | 2015-04-29 | 连云港杰瑞自动化有限公司 | A kind of vacuum heat-insulating plate production pumped vacuum systems |
| CN104832398A (en) * | 2015-04-14 | 2015-08-12 | 山西南烨立碁光电有限公司 | Vacuum extraction equipment |
| CN105588409A (en) * | 2015-12-07 | 2016-05-18 | 无锡市医用仪表厂 | Pharmaceutical drying equipment |
| CN107606966A (en) * | 2017-11-23 | 2018-01-19 | 长兴华阁耐物流装备有限公司 | A kind of condenser is classified vaccum-pumping equipment |
| CN208832872U (en) * | 2018-08-30 | 2019-05-07 | 深圳市智创谷技术有限公司 | A kind of high vacuum dry device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104062083A (en) | Air conditioner leak detection system and leak detection method thereof | |
| CN205192124U (en) | Drying cabinet | |
| CN203745156U (en) | Workpiece leak detecting device | |
| CN208832872U (en) | A kind of high vacuum dry device | |
| CN104501497B (en) | A kind of refrigerator with external antistaling vacuum container | |
| CN106802218A (en) | A kind of vacuum coating cavity leak detection system and leak hunting method | |
| CN206453665U (en) | A kind of fresh-keeping type cooking apparatus of negative pressure | |
| CN109059449A (en) | A kind of high vacuum dry device | |
| CN201885524U (en) | Vacuum drying device | |
| CN207596951U (en) | Heavy rare earth expands the magnetic control film coating equipment in cementation process | |
| CN206677157U (en) | A kind of cooling device of lost-foam casting model mould | |
| CN101485510B (en) | Improved vacuum-sulfurizing, bottom-sticking, freezing-moulding technique for processing boots and device thereof | |
| CN208418161U (en) | A kind of gas cylinder pretreatment unit | |
| CN204404696U (en) | A kind of monitor-type intelligence freeze drier | |
| CN110726293A (en) | Drying device is used in gallium oxide production | |
| CN205106276U (en) | Food vacuum freezing drying oven | |
| CN209944859U (en) | Dry air blowing structure of anti-frosting glass door for high-low temperature box | |
| CN206857078U (en) | Ultra-clean Vacuum Packing System | |
| CN104096839B (en) | A kind of method of metal powder vacuum sinter molding | |
| CN105439476A (en) | Device and method for efficiently degassing for vacuum glass | |
| CN212293493U (en) | White spirit brewing system | |
| CN102249558B (en) | Manufacturing system for vacuum glass | |
| CN206298638U (en) | A kind of protective atmosphere quickly cooling device | |
| CN101231141A (en) | Drawer type electro-heat vacuum drier | |
| CN204330223U (en) | The cool-down ventilation machine structure of riveting plug sealing integrated form pick-up unit |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181221 |