CN111442638A - Defrosting cleaning device for cold trap of air-cooled vacuum freeze dryer - Google Patents
Defrosting cleaning device for cold trap of air-cooled vacuum freeze dryer Download PDFInfo
- Publication number
- CN111442638A CN111442638A CN202010362591.2A CN202010362591A CN111442638A CN 111442638 A CN111442638 A CN 111442638A CN 202010362591 A CN202010362591 A CN 202010362591A CN 111442638 A CN111442638 A CN 111442638A
- Authority
- CN
- China
- Prior art keywords
- cold trap
- cleaning
- water tank
- defrosting
- freeze dryer
- 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
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
Abstract
The invention discloses a defrosting and cleaning device for a cold trap of an air-cooled vacuum freeze dryer, and belongs to the technical field of freeze dryers. The device comprises a vacuum drying system and a refrigerating and cleaning system; the vacuum drying system comprises a material cabin, a cold trap and a vacuum pump, wherein the cold trap is arranged in a sealing manner, the top of the cold trap is provided with a pressurizing nozzle, and the bottom of the cold trap is provided with a drain pipe; the refrigeration cleaning system comprises an evaporator, a compressor, a cleaning water tank, a condenser and an expansion valve, wherein the evaporator, the compressor, the cleaning water tank, the condenser and the expansion valve are sequentially communicated in a circulating mode. According to the invention, the cleaning liquid in the cleaning water tank is heated by the heat generated by the compressor through the additionally arranged cleaning water tank, and finally the cleaning liquid is sprayed in the cold trap for defrosting and cleaning operation.
Description
Technical Field
The invention relates to a defrosting and cleaning device for a cold trap of an air-cooled vacuum freeze dryer, belonging to the technical field of freeze dryers.
Background
Vacuum freeze drying is to freeze the freeze-drying water-containing material or solution at low temperature in advance, then to dehydrate the material under vacuum environment to obtain the dry product, the vacuum freeze dryer generally has a material cabin, a cold trap and a refrigeration part, the refrigeration part is used to make the low temperature environment of the cold trap, the cold trap is used to sublimate the water of the product in the material cabin to trap the water in the cold trap, when the products in the same batch are dried, a layer of thick frost is formed in the cold trap due to the capture of water vapor, and the layer of frost needs to be removed so as not to influence the drying of subsequent products, the conventional device for defrosting the cold trap comprises a heating wire and a heat-insulating layer, the heating wire is wound on the outer side of the cold trap, the heat-insulating layer wraps the cold trap and the heating wire, and during defrosting, the heater wire circular telegram intensifies, and the temperature gives the cold-trap for its inside frost is heated and is melted, and the problem that above-mentioned device exists is: firstly, the time consumption is long, the energy consumption is high, the power of an electric heating mode is generally 500-900W, the heating wire is electrified and heated to 30-50 ℃, heat is transferred to the cold trap through a heat conduction mode, accordingly, frost in the cold trap is melted, the time consumption and the power consumption are long when the frost is completely melted, and the heating wire cannot be replaced at all when damaged. Secondly, the temperature of the cold trap is very low and can even reach-80 ℃, the heating wire is influenced by cold and hot alternation in the using process and is easy to age, so that short circuit is easy to occur and danger is generated, and the vacuum freeze dryer on the market does not have a function of specially cleaning the inside of the cold trap.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a cold trap of air-cooled vacuum freeze dryer is with changing white belt cleaning device, it energy consumption is high, efficiency is slow when having solved current vacuum freeze dryer and having changed the frost, changes the white device and takes place the short circuit easily and produce danger, also can't change after damaging to vacuum freeze dryer on the market does not have the problem of carrying out abluent function to the cold trap inside specially.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a defrosting and cleaning device for a cold trap of an air-cooled vacuum freeze dryer comprises a vacuum drying system and a refrigerating and cleaning system;
the vacuum drying system comprises a material cabin, a cold trap and a vacuum pump, wherein the cold trap is arranged in a sealing manner, the top of the cold trap is provided with a pressurizing spray head, and the bottom of the cold trap is provided with a drain pipe;
the refrigeration cleaning system comprises an evaporator, a compressor, a cleaning water tank, a condenser and an expansion valve, wherein the evaporator, the compressor, the cleaning water tank, the condenser and the expansion valve are sequentially communicated in a circulating manner, and the evaporator is connected with the cold trap and used for manufacturing a low-temperature environment of the cold trap;
the cleaning water tank is internally stored with cleaning liquid, the cleaning water tank heats the cleaning liquid by utilizing heat generated by the compressor, the cleaning liquid enters the cold trap through a pipeline, a circulating pump and a pressurizing nozzle, and the cleaning liquid is discharged from the cold trap through a drain pipe.
As a preferred example, the cleaning water tank comprises a tank body, a coil pipe and a water inlet pipe, wherein the coil pipe is arranged in the tank body, one end of the coil pipe is communicated with a high-temperature pipe of the compressor, the other end of the coil pipe is communicated with an air inlet pipe of the condenser, and one end of the pipeline extends to the interior of the tank body and is used for extracting cleaning liquid stored in the tank body.
As a preferred example, the box body is also provided with a heating rod.
As a preferable example, the top of the material cabin is also provided with a pressurizing spray head, and the material cabin and the pressurizing spray head on the cold trap are jointly communicated with the pipeline through a three-way joint.
As a preferable example, two electromagnetic valves are arranged on the pipeline and are respectively used for controlling the material cabin and the pressurized spray heads on the cold trap to spray cleaning liquid.
As a preferred example, the drain pipe is also provided with an electromagnetic valve.
The invention has the beneficial effects that: according to the invention, the cleaning liquid in the cleaning water tank is heated by the heat generated by the compressor through the additionally arranged cleaning water tank, and finally the cleaning liquid is sprayed in the cold trap for defrosting and cleaning operation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a cleaning water tank according to the present invention;
fig. 3 is a schematic view of the connection between the material tank and the cold trap in the present invention.
In the figure: the device comprises a vacuum drying system 1, a refrigeration cleaning system 2, an evaporator 3, a compressor 4, a cleaning water tank 5, a condenser 6, an expansion valve 7, a vacuum pump 8, a cold trap 9, a material cabin 10, a box body 11, a coil pipe 12, a pipeline 13, a heating rod 14, a water inlet pipe 15, a pressurizing nozzle 16, an electromagnetic valve 17, a circulating pump 18 and a water outlet pipe 19.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the invention easy to understand, the invention is further described with reference to the specific drawings.
As shown in fig. 1-3, a defrosting and cleaning device for a cold trap of an air-cooled vacuum freeze dryer comprises a vacuum drying system 1 and a refrigerating and cleaning system 2;
the vacuum drying system 1 comprises a material cabin 10, a cold trap 9 and a vacuum pump 8, wherein the material cabin 10 is communicated with the cold trap 9 through a connecting pipe and a valve, the vacuum pump 8 is communicated with the cold trap 9 and used for extracting air in the cold trap 9 to manufacture a vacuum environment, the cold trap 9 is arranged in a sealing mode, a pressurizing spray head 16 is arranged at the top of the cold trap 9, a drain pipe 19 is arranged at the bottom of the cold trap 9, and the cold trap 9 is vertically arranged instead of a traditional horizontal arrangement mode, so that cleaning liquid can be conveniently contacted with and discharged from the inner wall of the cold trap 9;
the refrigerating and cleaning system 2 comprises an evaporator 3, a compressor 4, a cleaning water tank 5, a condenser 6 and an expansion valve 7, wherein the evaporator 3, the compressor 4, the cleaning water tank 5, the condenser 6 and the expansion valve 7 are sequentially communicated in a circulating manner, and the evaporator 3 is connected with a cold trap 9 through a copper pipe and used for manufacturing a low-temperature environment of the cold trap 9;
the inside storage that washs water tank 5 has the washing liquid, and the washing liquid can select for use ordinary water, also can add the detergent according to actual demand in aqueous and mix, strengthens abluent effect, washs water tank 5 and utilizes the heat heating washing liquid that compressor 4 produced, and the washing liquid passes through pipeline 13, circulating pump 18 and 16 entering cold-trap 9 of pressurization shower nozzles in, and the washing liquid passes through drain pipe 19 and discharges in following cold-trap 9.
Adopt above-mentioned scheme, the heat that utilizes compressor 4 to produce is the washing liquid heating in wasing water tank 5, finally sprays the washing liquid and changes the frost and wash the operation in cold-trap 9, for traditional frost device that changes, the direct frost contact with the cold-trap 9 of tepid washing liquid, not only changes the frost process fast, the energy consumption is low, and the washing liquid can also play the cleaning action to cold-trap 9 inner wall moreover, prevents the residue of last batch of product.
By adopting the scheme, in the continuous working process of the compressor 4, the temperature of the internal working medium can reach 50-60 ℃, the warm working medium is introduced into the coil pipe 12 to heat the cleaning liquid in the box body 11, and the working medium after heat exchange enters the condenser 6, so that on one hand, the waste heat of the compressor 4 is utilized, the energy loss is reduced, the workload of the subsequent condenser 6 is reduced, and on the other hand, the warm cleaning liquid has better effects in defrosting and cleaning.
The box 11 is also provided with a heating rod 14.
By adopting the scheme, when a user only needs a cleaning function and the compressor 4 is stopped without refrigeration, the cleaning liquid in the box body 11 is heated by the heating rod 14, and the box body 11 is designed for heat preservation and is additionally provided with the temperature controller so as to maintain the temperature of the cleaning liquid.
The top of the material cabin 10 is also provided with a pressurizing spray head 16, and the material cabin 10 and the pressurizing spray head 16 on the cold trap 9 are communicated with the pipeline 13 together through a three-way joint.
By adopting the scheme, warm cleaning liquid can be sprayed into the cold trap 9 and the material cabin 10 through the pipeline 13, the circulating pump 18 and the pressurizing spray head 16, so that the effects that the interiors of the cold trap 9 and the material cabin 10 can be cleaned are achieved.
Two electromagnetic valves 17 are arranged on the pipeline 13 and are respectively used for controlling the material cabin 10 and the pressurizing spray heads 16 on the cold trap 9 to spray cleaning liquid, and the electromagnetic valve 17 is also arranged on the drain pipe 19.
By adopting the above scheme, the setting of the electromagnetic valve 17 can control the flow direction of the cleaning liquid, and it is worth mentioning that the control panel of the vacuum freeze dryer is additionally provided with a corresponding cleaning/defrosting button, and the independent defrosting and cleaning functions of the cold trap 9 and the material cabin 10 are realized by controlling the opening and closing of the electromagnetic valve 17 and the circulating pump 18.
The working principle is as follows: injecting cleaning liquid into the box body 11 through a water inlet pipe 15, wherein the refrigerating part of the vacuum freeze dryer normally works, heating the cleaning liquid by a warm working medium of a compressor 4 through a coil pipe 12, keeping the temperature of the cleaning liquid in the whole box body 11 at 40-50 ℃, directly pressing a defrosting button on a control panel when the cold trap 9 needs defrosting, starting a circulating pump 18 to pump the cleaning liquid through a pipeline 13, opening a corresponding electromagnetic valve 17, spraying the cleaning liquid into the cold trap 9 through a pressurizing nozzle 16 at a wide angle, directly contacting the warm cleaning liquid with frost, rapidly stripping and melting the frost from the inner wall of the cold trap 9, discharging the melted water through a drain pipe 19, and similarly, when the cold trap 9 and the material compartment 10 need to be cleaned, pressing the cleaning button on the control panel, opening the corresponding electromagnetic valve 17 according to a set program, and automatically spraying the cleaning liquid into the cold trap 9 and the material compartment 10, and (5) cleaning.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a cold trap of air-cooled vacuum freeze dryer is with changing white belt cleaning device which characterized in that: comprises a vacuum drying system (1) and a refrigeration cleaning system (2);
the vacuum drying system (1) comprises a material cabin (10), a cold trap (9) and a vacuum pump (8), wherein the cold trap (9) is arranged in a sealing manner, a pressurizing spray head (16) is arranged at the top of the cold trap (9), and a drain pipe (19) is arranged at the bottom of the cold trap;
the refrigeration cleaning system (2) comprises an evaporator (3), a compressor (4), a cleaning water tank (5), a condenser (6) and an expansion valve (7), wherein the evaporator (3), the compressor (4), the cleaning water tank (5), the condenser (6) and the expansion valve (7) are sequentially communicated in a circulating manner, and the evaporator (3) is connected with a cold trap (9) and used for manufacturing a low-temperature environment of the cold trap (9);
the inside of washing water tank (5) is stored with the washing liquid, washing water tank (5) utilizes the heat heating washing liquid that compressor (4) produced, the washing liquid passes through pipeline (13), circulating pump (18) and pressurization shower nozzle (16) and gets into in cold-trap (9), the washing liquid is discharged in cold-trap (9) through drain pipe (19).
2. The defrosting and cleaning device for the cold trap of the air-cooled vacuum freeze dryer according to claim 1, characterized in that: wash water tank (5) and include box (11), coil pipe (12) and inlet tube (15), coil pipe (12) set up in box (11), the wherein one end of coil pipe (12) and the high temperature pipe intercommunication of compressor (4), the other end and the intake pipe intercommunication of condenser (6), the one end of pipeline (13) extends to the inside of box (11) for the washing liquid of extraction box (11) internal storage.
3. The defrosting and cleaning device for the cold trap of the air-cooled vacuum freeze dryer according to claim 2, characterized in that: and a heating rod (14) is also arranged on the box body (11).
4. The defrosting and cleaning device for the cold trap of the air-cooled vacuum freeze dryer according to claim 1, characterized in that: the top of the material cabin (10) is also provided with a pressurizing spray head (16), and the material cabin (10) and the pressurizing spray head (16) on the cold trap (9) are communicated with the pipeline (13) through a three-way joint.
5. The defrosting and cleaning device for the cold trap of the air-cooled vacuum freeze dryer according to claim 4, wherein: and two electromagnetic valves (17) are arranged on the pipeline (13) and are respectively used for controlling the material cabin (10) and the pressurizing spray heads (16) on the cold trap (9) to spray cleaning liquid.
6. The defrosting and cleaning device for the cold trap of the air-cooled vacuum freeze dryer according to claim 5, wherein: the drain pipe (19) is also provided with an electromagnetic valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362591.2A CN111442638A (en) | 2020-04-30 | 2020-04-30 | Defrosting cleaning device for cold trap of air-cooled vacuum freeze dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362591.2A CN111442638A (en) | 2020-04-30 | 2020-04-30 | Defrosting cleaning device for cold trap of air-cooled vacuum freeze dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111442638A true CN111442638A (en) | 2020-07-24 |
Family
ID=71651987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010362591.2A Pending CN111442638A (en) | 2020-04-30 | 2020-04-30 | Defrosting cleaning device for cold trap of air-cooled vacuum freeze dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111442638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758051A (en) * | 2021-08-30 | 2021-12-07 | 刘亚超 | Energy-saving air source heat pump |
-
2020
- 2020-04-30 CN CN202010362591.2A patent/CN111442638A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758051A (en) * | 2021-08-30 | 2021-12-07 | 刘亚超 | Energy-saving air source heat pump |
| CN113758051B (en) * | 2021-08-30 | 2022-12-09 | 河北保尔科技发展有限公司 | Energy-saving air source heat pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201036546Y (en) | Tableware cleaning machine | |
| CN106691348B (en) | A kind of dish-washing machine | |
| CN104905745A (en) | Heat pump dish washing machine and control method thereof | |
| CN100390347C (en) | Washing/drying machine | |
| CN105716355B (en) | A kind of wind cooling refrigerator subsidiary defrosting device and method | |
| CN205878764U (en) | Red separately cooling freezes drying equipment | |
| CN105105695B (en) | The drying device and heat-pump-type dish-washing machine of heat-pump-type dish-washing machine | |
| US6422180B1 (en) | Flush line for dishwasher | |
| CN109381148B (en) | Heat pump type dish washing machine and control method | |
| JP2007125198A (en) | Dish washing and drying machine | |
| WO2019075991A1 (en) | Range hood, range hood cleaning device and control method therefor | |
| CN111442638A (en) | Defrosting cleaning device for cold trap of air-cooled vacuum freeze dryer | |
| CN104457142A (en) | Intermittent vacuum freeze-drying device for green leaf food | |
| CN212133250U (en) | Defrosting cleaning device for cold trap of air-cooled vacuum freeze dryer | |
| CN106362980A (en) | Dry-wet cold-hot all-purpose cleaning machine | |
| CN207471925U (en) | A kind of automatic cleaning steam drying dewaterer | |
| CN109381144B (en) | Heat pump type dish washing machine and control method | |
| CN107641940B (en) | Pump body device and washing machine | |
| EP3741908A1 (en) | Clothes drying apparatus and control method thereof | |
| CN207914234U (en) | A kind of medical instrument cycle perfusion cleaning device | |
| CN205784074U (en) | Vacuum cooling driers low temperature and low pressure steam replaces ice melting system | |
| CN101588747A (en) | Dish-washing machine | |
| CN208205639U (en) | Drying unit is used in a kind of processing of refrigeration accessory | |
| CN211526764U (en) | Frostless air source cascade heat pump for solution icing | |
| CN109381145B (en) | Heat pump type dish washing machine and control method |
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 |