CN104457142B - The intermittent vacuum freeze drying plant of a kind of greenery based food - Google Patents
The intermittent vacuum freeze drying plant of a kind of greenery based food Download PDFInfo
- Publication number
- CN104457142B CN104457142B CN201410588284.0A CN201410588284A CN104457142B CN 104457142 B CN104457142 B CN 104457142B CN 201410588284 A CN201410588284 A CN 201410588284A CN 104457142 B CN104457142 B CN 104457142B
- Authority
- CN
- China
- Prior art keywords
- vacuum
- cold
- trap
- greenery
- heat exchange
- 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.)
- Expired - Fee Related
Links
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The present invention relates to Vacuum Freezing & Drying Technology field, particularly relate to the intermittent vacuum freeze drying plant of a kind of greenery based food, include Controlling System, cabinet, vacuum tank, cold-trap, vacuum pump, and composition quick-frozen, the heat exchange coil of heating system, gas-liquid separator, refrigeration compressor, container for storing liquid and condenser; Described cabinet comprises on cabinet that under chamber and cabinet chamber, described vacuum tank, cold-trap are located on cabinet chamber, described heat exchange coil is located in vacuum tank, be also provided with in described vacuum tank food box and place food box put frame, the bottom of described heat exchange coil and food box touches; Described vacuum pump and the gas-liquid separator connected successively, refrigeration compressor, container for storing liquid, condenser are all arranged under cabinet chamber. This vacuum freezing drying device set multi-functional Collaborative Control such as quick freezing, the seizure of cold-trap water vapour, heating under vacuum sublimation drying, in one, can automatically be changed and complete vacuum lyophilization process quickly and efficiently, and structure is simple, and cost is lower.
Description
Technical field
The present invention relates to Vacuum Freezing & Drying Technology field, particularly relate to the intermittent vacuum freeze drying plant of a kind of greenery based food.
Background technology
Vacuum lyophilization be by water-containing materials under low-temperature condition, water-cooled in material is frozen into solid-state ice crystal, when cryogenic vacuum, material is heated, its ice crystal is directly distilled, the steam of distillation is caught by cold-trap, thus make material obtain drying at a lower temperature, it is a kind of collect machinery, refrigeration, vacuum and be controlled in the application of an integrated technology of one. Compare other drying meanss, it is clear that due to the drying under low temperature and vacuum condition, avoid high temperature to the effect of biologically active substance and oxidation, save the biologically active substance in article to greatest extent; Again due to sublimation drying, the ice crystal in material directly distils, and dried goods are porous spongy structure, and material profile originally can well be retained, and its rehydration performance is very good, color and luster after rehydration and state as before fresh.
These features of vacuum lyophilization, manufacture the advantage required for high-quality nutrition, protective foods just, are also that the class meeting modern people's life requirement is pursued. The key of vacuum freeze-drying method divides " quick-frozen " and " heating under vacuum sublimation drying " these two function links, it both can utilize facility independent separately to implement, elder generation's " quick-frozen " then " heating under vacuum sublimation drying " can also be combined, the former can realize successive drying food, the latter just can only many batches of process, i.e. intermittent type process. As, fresh and dried garden sauce etc. in instant food, owing to treatment capacity is general relatively big, its " quick-frozen " can adopt independent quick freezing repository first fresh vegetables (comprising fresh green onion, garlic etc.) to be carried out fast frozen, then implements " heating under vacuum sublimation drying " process in vacuum drying tank. But for producing the greenery based foods such as high-grade tealeaves, owing to output is relatively little, adopting the equipment needed for processing mode of separate type to comprise quick freezing unit and heating sublimation equipment, the part of two complete equipments can not utilize mutually, and cost is higher.
Therefore, for existing problems of the prior art, need badly and provide nested structure technology simple, that " quick-frozen " and " heating under vacuum sublimation drying " apparatus integration can be realized to seem particularly important.
Summary of the invention
It is an object of the invention to avoid weak point of the prior art and the vacuum freezing drying device of a kind of high-grade greenery class article such as tealeaves, fruit and vegetable is provided, this vacuum freezing drying device set multi-functional Collaborative Control such as quick freezing, the seizure of cold-trap water vapour, heating under vacuum sublimation drying are in one, can automatically change and complete vacuum lyophilization process quickly and efficiently, structure is simple, and cost is lower.
The object of the present invention is achieved through the following technical solutions:
The intermittent vacuum freeze drying plant of a kind of greenery based food is provided, include Controlling System, cabinet, vacuum tank, cold-trap, vacuum pump, and composition quick-frozen, the heat exchange coil of heating system, gas-liquid separator, refrigeration compressor, container for storing liquid and condenser, described cabinet comprises on cabinet that under chamber and cabinet chamber, described vacuum tank, cold-trap are located on cabinet chamber, described heat exchange coil is located in vacuum tank, be also provided with in described vacuum tank food box and place food box put frame, the bottom of described heat exchange coil and food box touches, described vacuum pump and the gas-liquid separator connected successively, refrigeration compressor, container for storing liquid, condenser are all arranged under cabinet chamber, the inlet pipe of described vacuum pump is connected by normally closed vacuum solenoid with the outlet pipe of cold-trap, and the inlet pipe of described cold-trap is connected with the vacuum outlet pipe of vacuum tank by back pressure manual ball valve, the refrigeration agent effuser of described cold-trap is connected with gas-liquid separator and is connected with gas-liquid separator, the expansion valve of described cold-trap is connected with container for storing liquid by normally closed solenoid valve LDF, one end of described heat exchange coil by quick-frozen expansion valve respectively with container for storing liquid, condenser connects, normally closed solenoid valve SDF1 it is provided with between quick-frozen expansion valve and container for storing liquid, quick-frozen expansion valve, condenser, container for storing liquid realizes connecting by three-way solenoid valve, this three-way solenoid valve is used for adding hot-swap, the other end of described heat exchange coil respectively with gas-liquid separator, container for storing liquid connects, normally closed solenoid valve SDF2 it is provided with between heat exchange coil and gas-liquid separator, normally closed solenoid valve GDF2 it is provided with between heat exchange coil and container for storing liquid, this normally closed solenoid valve GDF2 is used for adding hot-swap.
Wherein, the top of described food box and bottom are equipped with some micropores.
Wherein, the shaking device shaken about control food box also it is provided with in described vacuum tank.
Wherein, described shaking device comprises micromotor, cam and food box vibrator, and described micromotor is electrically connected with cam and drives cam rotation, shakes about described cam driven food box vibrator.
Wherein, described Controlling System comprises micro-chip and touch display screen.
Wherein, described heat exchange coil top is provided with sample box, is also provided with the video frequency pick-up head of sample state in shooting, monitoring sample box in described vacuum tank.
Wherein, described cold-trap outer disk is wound with ptc heater.
Wherein, described cold-trap comprises four cold-trap tanks, connects after the parallel connection between two of described cold-trap tank again; The pipe outer wall of cold-trap tank described in each all coils the vaporizing coil for lowering the temperature.
Wherein, described vacuum tank is provided with vacuum tank door, and the junction of vacuum tank door and vacuum tank is provided with multiple spot screw thread spinning silica gel sealing bar.
Wherein, described cabinet comprises frame, insulation can door and dismountable thermal insulation box plate.
The useful effect of the present invention is:
Heat exchange coil in the vacuum tank of the intermittent vacuum freeze drying plant of a kind of greenery based food of the present invention is both as the vaporizer of quick-frozen process, again as the part of heat pump device condenser for sublimation drying process, save material, simultaneously, it is to increase the efficient drying volume of vacuum tank. This vacuum freezing drying device set multi-functional Collaborative Control such as quick freezing, the seizure of cold-trap water vapour, heating under vacuum sublimation drying, in one, can automatically be changed and complete vacuum lyophilization process quickly and efficiently, and structure is simple, and cost is lower.
Accompanying drawing explanation
The present invention will be further described to utilize accompanying drawing, but the content in accompanying drawing does not form any limitation of the invention.
Fig. 1 is the structural representation that the intermittent vacuum freeze drying plant of a kind of greenery based food of the present invention takes side thermal insulation box plate apart.
Fig. 2 is the structural representation that the intermittent vacuum freeze drying plant of a kind of greenery based food of the present invention takes another side thermal insulation box plate apart.
Fig. 3 is the vertical view taking top thermal insulation box plate apart of Fig. 2.
Fig. 4 is the assembly structure schematic diagram of the intermittent vacuum freeze drying plant of a kind of greenery based food of the present invention.
Fig. 1 to Fig. 4 includes:
1 vacuum tank door; 2 right folding doors;
3 vacuum tanks; 4 cold-traps;
The expansion valve of 5 cold-traps; 6 quick-frozen expansion valves;
10 multiple spot screw thread spinning silica gel sealing bars;
11 video frequency pick-up heads; 12 sample boxs;
13 LED; 14 food boxes;
15 food box vibrators; 16 micromotors;
The inlet pipe of 17 cold-traps; 18 back pressure manual ball valves;
The refrigeration agent effuser of 19 cold-traps; The vacuum outlet pipe of 20 vacuum tanks;
21 cold-trap water discharge valves; 22 control enclosurees;
23 normally closed solenoid valve SDF1; 24 normally closed solenoid valve LDF;
25 condensers; 26 normally closed solenoid valve SDF2;
27 normally closed solenoid valve GDF2; 28 three-way solenoid valves;
29 container for storing liquids; 30 gas-liquid separators;
31 refrigeration compressors; 32 vacuum pumps;
The outlet pipe of 33 vacuum pumps; The inlet pipe of 34 vacuum pumps;
35 normally closed vacuum solenoids; 36 vacuum meters;
37 left flat doors.
Embodiment
In order to make the object of invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.
Embodiment:
As shown in Figures 1 to 4, the intermittent vacuum freeze drying plant of a kind of greenery based food, include Controlling System, cabinet, vacuum tank 3, cold-trap 4, vacuum pump 32, and composition quick-frozen, the heat exchange coil of heating system, gas-liquid separator 30, refrigeration compressor 31, container for storing liquid 29 and condenser 25. As shown in Figure 1, this apparatus design can rationally be assemblied in each functional component the cabinet of one, weld with cold-reduced sheet material primarily of square steel, the moulding process such as bending plate form frame and detachable box plate structure, frame and each removable boxboard, carry out integral surface process and the antirust treatment that dusts after shaping. Cabinet comprises on cabinet that under chamber and cabinet chamber, and vacuum tank 3, cold-trap 4 are located on cabinet chamber, and vacuum tank shell, cold-trap shell carry out polyurethane foamed thermal-insulating process after pipeline has connected so that vacuum tank 3 and cold-trap 4 have good adiabatic condition. Owing to not only to be completed quick-frozen task in vacuum tank 3, mainly need to complete the dry task of heating sublimation, thus, heat exchange coil is located in vacuum tank 3, also be provided with in vacuum tank 3 food box 14 and place food box 14 put frame, the bottom of heat exchange coil and food box 14 touches, and contributes to reducing thermal conduction resistance; Meanwhile, in order to meet food sanitation safe requirement, in tank, frame all needs to adopt 304 stainless materials to make to the heat exchange coil of installing with putting; Heat exchange coil is the food coming on freezing shelf as vaporizer in the quick-frozen stage, and at heating sublimation drying stage, it then takes the dry food putting on frame of heating sublimation as well heater (a part of condenser 25 when cold-trap 4 is lowered the temperature). The connection importing and exporting the quick-frozen expansion valve 6 being connected and heating switching solenoid valve (normally closed solenoid valve GDF227, three-way solenoid valve 28) with heat exchange coil is see Fig. 2 and Fig. 4. Under cabinet, chamber is mainly as equipment chamber, vacuum pump 32 and the gas-liquid separator 30 connected successively, refrigeration compressor 31, container for storing liquid 29, condenser 25 are all arranged under cabinet chamber, under cabinet, the boxboard all around in chamber is the cold rolling spray coating plate of removable formula, band air grid, mainly plays decoration function; On cabinet, the upper frame in the base plate (top board in lower chamber) in chamber and lower chamber is used as support and the installation of the parts such as vacuum tank 3, cold-trap 4.
The outlet pipe 33 of vacuum pump is connected with outside air, and the inlet pipe 34 of vacuum pump is connected by normally closed vacuum solenoid 35 with the outlet pipe of cold-trap 4, and the inlet pipe 17 of cold-trap is connected with the vacuum outlet pipe 20 of vacuum tank by back pressure manual ball valve 18, the refrigeration agent effuser 19 of cold-trap is connected with gas-liquid separator 30 and is connected with gas-liquid separator 30, the expansion valve 5 of cold-trap is connected with container for storing liquid 29 by normally closed solenoid valve LDF24, the bottom of cold-trap is also connected with cold-trap water discharge valve 21, and chamber is located under cabinet by cold-trap water discharge valve 21, one end of heat exchange coil by quick-frozen expansion valve 6 respectively with container for storing liquid 29, condenser 25 connects, normally closed solenoid valve SDF123 it is provided with between quick-frozen expansion valve 6 and container for storing liquid 29, quick-frozen expansion valve 6, condenser 25, container for storing liquid 29 realizes connecting by three-way solenoid valve 28, this three-way solenoid valve 28 is for adding hot-swap, the other end of heat exchange coil respectively with gas-liquid separator 30, container for storing liquid 29 connects, normally closed solenoid valve SDF226 it is provided with between heat exchange coil and gas-liquid separator 30, normally closed solenoid valve GDF227 it is provided with between heat exchange coil and container for storing liquid 29, this normally closed solenoid valve GDF227 is used for adding hot-swap.
In order to ensure the stopping property of system, the joint that vacuum tank 3 connects vacuum system adopts conical surface copper pipe hydraucone to connect, copper pipe is connected also employing conical surface copper pipe hydraucone and connects with magnetic valve, tube and tube is directly by brazing, reduce leak rate as far as possible, vacuum tightness required when ensureing sublimation drying when vacuum pump 32 pumping speed is stable.
Wherein, the top of food box 14 and bottom are equipped with some micropores. For loading the greenery based food box 14 of dry goods, its box body and lid all adopt the bending of stainless steel porous plate and are welded, its box-packed structure prevents descending slowly and lightly and splashing of light article, and its microvoid structure can be used as air-flow passage, contribute to the convection current of air during quick-frozen and improve chilling rate, ensure the homogeneity of quick-frozen, contribute to as the distillation passage of steam when heating sublimation is dry improving drying rate, ensureing dry homogeneity.
Wherein, the shaking device that control food box about 14 shakes also it is provided with in vacuum tank 3.
Wherein, shaking device comprises micromotor 16, cam and food box vibrator 15, and described micromotor 16 is electrically connected with cam and drives cam rotation, and described cam driven food box vibrator about 15 shakes. Micromotor 16 is as cam rotary power, food box vibrator 15 is the interlinked mechanism being arranged at and putting frame left and right sides band fulcrum, cam rotarily drive interlinked mechanism, thus make food box 14 can periodically left and right microseismic activity again after overall micro-rising, thus improve vacuum-sublimation drying rate.
Wherein, Controlling System comprises micro-chip and touch display screen. Vacuum tank 3 is also connected with the vacuum meter 36 of pressure in monitoring tank. Controlling System is located in control enclosure 22; control enclosure 22 is installed on cabinet middle front part; Controlling System mainly adopts micro-chip to add the control man-machine interface mode of touch-screen; its control is except overcurrent, overvoltage, the protecting control such as overheated, and the control of its function is main adopts sequential control mode and temperature, pressure video measuring record.
Wherein, heat exchange coil top is provided with sample box 12, is also provided with the video frequency pick-up head 11 of sample state in shooting, monitoring sample box 12 in vacuum tank 3. In order to monitor the process situation of food, vacuum tank 3 heat exchange coil with put top of the trellis, an ad hoc sample box 12, and irradiate with LED 13, video frequency pick-up head 11 camera monitoring and record sample drying process appearance change situation.
Wherein, cold-trap outer disk is wound with ptc heater. Adopt the method for the steam that the mode manually starting the ptc heater coiling molten frost of cold-trap wall, intermittent discharge cold-trap 4 catch, ensure that cold-trap 4 again vacuum catch not decaying of distillation moisture capacity.
Wherein, cold-trap 4 comprises four cold-trap tanks, connects after the parallel connection between two of cold-trap tank again; The pipe outer wall of cold-trap tank described in each all coils the vaporizing coil for lowering the temperature. In order to the vacuum pressure in the ability of steam when the compact of structure and guarantee cold-trap 4 catch sublimation drying, as much as possible reduction vacuum suction resistance, guarantee vacuum tank 3 is lower than the triple point pressure (640Pa) of water, have employed outer coil evaporator tank and make cold-trap tank. The pipe of vaporizing coil is apart from the mode adopting front wide and rear narrow layout, before making cold-trap top tank structure temperature, height is rear low, to avoid the frost heap plug sublimated in cold-trap tank anterior at cold-trap inlet mouth or cold-trap tank, so then can reduce the resistance of bleeding of vacuum pump 32 to greatest extent, thus described vacuum tank 3 interior required vacuum tightness when realizing ensureing sublimation drying. Cold-trap expansion valve outlet is connected to cold-trap tank lower connection pipe, and the gas-liquid separator 30 that gas is directly connected and installed under cabinet chamber is returned on top. Cold-trap 4 can adopt polyurethane foam and realize the insulation of cold-trap shell, ensures the low temperature that cold-trap inwall is enough, to make steam sublimate in process of vacuum drying while save energy, it is achieved the efficient object catching steam.
Wherein, vacuum tank 3 is provided with vacuum tank door 1, and vacuum tank door 1 is provided with multiple spot screw thread spinning silica gel sealing bar 10 with the junction of vacuum tank 3. Have employed the mode of multiple spot screw thread spinning silica gel sealing bar 10 between vacuum tank 3 and vacuum tank door 1 to seal, meet vacuum level requirements during heating sublimation drying. In addition, vacuum tank shell (comprises vacuum tank door 1) and PE warming plate can be adopted to be incubated, to realize loss of refrigeration capacity when reducing quick-frozen while shell does not coagulate dew.
Wherein, cabinet comprises frame, insulation can door and dismountable thermal insulation box plate. The case door of cabinet comprises left flat door 37 and right folding door 2. On cabinet, front, chamber is the flat door 37 in right folding door 2 and a left side, on cabinet above chamber, the back side and left and right side all establish detachable heat-insulating boxboard, main play insulation and decoration function.
This device combines function link needed for vacuum lyophilization, and can reliably complete following function course: be well placed in vacuum drying tank article (tealeaves) �� startup quick-frozen system �� article reach quick-frozen requirement �� quick-frozen terminate �� start cold-trap cooling system �� cold-trap reach preset temp continue to run �� start triple point that vacuum pump makes system vacuum maintain water with overdraft �� enter heating sublimation drying �� article (tealeaves) reach dry requirement �� stop heating �� stop vacuum pump �� stoppings cold-trap �� unlatchings check valve �� open vacuum tank �� packaging dry goods (tealeaves) �� vacuum lyophilization terminate �� open cold-trap molten white heat �� water �� preparation got off of sublimating of eliminating cold-trap enters new round vacuum lyophilization process.
With reference to Fig. 4, in above process, quick-frozen system cloud gray model is the refrigeration system startup optimization taking refrigeration compressor 31 as core, refrigeration agent is through " refrigeration compressor, oil separator, condenser " etc. the compression condensation effect of parts, form high pressure room temperature liquid refrigerant, flow through three-way solenoid valve 28 (normality) and enter high pressure container for storing liquid 29, now normally closed solenoid valve SDF123 energising conducting, refrigerant flow direction quick-frozen expansion valve 6 (external-balancing thermal expansion valve), through throttling expansion, low temperature (can reach-35 DEG C), and low-pressure gas-liquid two phase refrigerant is assigned to evaporation endothermic in shelf-type vaporizing coil by skimmer, the article heat being positioned in food box 14 that shelf-type vaporizing coil puts on frame is taken out of vacuum tank 3, thus article in food box 14 are lowered the temperature gradually and reaches the object of frozen state, the magnetic valve SDF2 that the low pressure refrigerant evaporated in shelf-type vaporizing coil flows through energising conducting flows back to gas-liquid separator 30, return to compressor suction duct again, complete a complete quick-frozen refrigeration cycle. during quick-frozen system cloud gray model, cold-trap and vacuum system do not work, and other are not all energized for the magnetic valve of handoff functionality, are in the state of blocking.
With reference to Fig. 4, before quick-frozen system cloud gray model reaches target, prepares to enter drying phase under vacuum, in order to ensure the reliability of vacuum pump long-time running, first the inner wall temperature of cold-trap tank is needed to reduce, now, Condensing unit continues work during quick-frozen, connect magnetic valve LDF about 20 seconds, close magnetic valve SDF1, SDF2, refrigeration cycle switch to cold-trap cooling refrigeration circulation, when cold-trap top tank structure temperature reach relatively low temperature target time (being less than about-30 DEG C) just start normally closed vacuum solenoid 35 and vacuum pump.
With reference to Fig. 4, the operation of drying sublimation system refers to after cold-trap and vacuum system operation enter steady state, three-way solenoid valve 28 and normally closed solenoid valve GDF227 energising conducting, enter in former shelf-type vaporizing coil through the switching of condenser 25 condensed refrigeration agent, heat to the article being positioned in vacuum tank 3 that in food box 14, quick-frozen is good, owing to shelf-type vaporizing coil now is as the sublimation drying of cold-trap continuation cooling refrigeration circulation, unit enters process.
The time of the main function link of said process can set in a big way, such as quick-frozen time, heating sublimation time of drying. In addition, by sequential switching control, a set of refrigeration compressor 31 had not only completed that " quick-frozen " requires but also create " that cold-trap 4 " carries out steam and catches foot, thus make full use of refrigeration compressor 31 more valuable in refrigeration system, it is achieved reduce manufacturing cost object.
The principal feature of the vacuum freezing drying device of the present invention is:
(1) in vacuum tank 3, component (comprising: heat exchange coil is with putting frame, greenery based food pallet) all adopt the stainless steel meeting food sanitation safe requirement.
(2) heat exchange coil in vacuum tank 3 is both as the vaporizer of quick-frozen process, again as the part of heat pump device condenser 25 for sublimation drying process, save material, simultaneously, it is to increase the efficient drying volume of vacuum tank 3.
(3) stainless steel porous plate is adopted to make greenery based food pallet, prevent descending slowly and lightly and scattering and disappearing of light based food on the one hand, on the other hand owing to a large amount of micropores is as air-flow passage, contribute to improving chilling rate and sublimation drying speed, ensure quick-frozen and dry homogeneity.
(4) adopt micromotor 16 to promote the mode of cam, food trays is carried out regular left and right vibrations by vacuum-sublimation drying process, to improve sublimation drying speed, thus effectively improves whole efficiency and dry mass.
(5) feature sublimated for cold-trap, it is easy to block the problem of vacuum-lines to avoid frosting, adopt patten's design four cartridge type interlayer cold-traps of " front wide and rear narrow; loose at first but afterwards tight ", ensureing effectively to catch on the basis of steam, reduce vacuum-lines resistance, ensure the vacuum tightness of vacuum suction speed and sublimation drying, thus ensure dry mass.
(6) adopting delayed switching Controlling solenoid valve method, the thermal source that cold and hot amount is used as heated under vacuum distillation is crossed in condensation when cold-trap 4 is run, it may be achieved the energy-conservation object of cold and heat combined supply, ensure that the effect of not overtemperature and evenly conduction heating distillation simultaneously.
(7) adopt LED 13 irradiate sampling and video camera, can automatic semi-automatic monitoring and record drying process food outward appearance.
(8) system adopts sequential control, has the functions such as temperature corresponding to monitoring, vacuum tightness simultaneously, and the time setting of each function link adopts open, contributes to regulating and determining fast the freeze-drying curve of different greenery based food.
(9) adopt and directly it is wound around the mode of ptc heater in cold-trap refrigeration agent interlayer outer wall place cold-trap is carried out defrosting process.
(10) R407 environmental-protection refrigeration working medium is adopted, to meet international requirement.
Finally should be noted that; above embodiment only for illustration of the technical scheme of the present invention but not limiting the scope of the invention; although the present invention being explained in detail with reference to better embodiment; it will be understood by those within the art that; the technical scheme of the present invention can be modified or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. the intermittent vacuum freeze drying plant of a greenery based food, it is characterized in that: include Controlling System, cabinet, vacuum tank, cold-trap, vacuum pump, and composition quick-frozen, the heat exchange coil of heating system, gas-liquid separator, refrigeration compressor, container for storing liquid and condenser, described cabinet comprises on cabinet that under chamber and cabinet chamber, described vacuum tank, cold-trap are located on cabinet chamber, described heat exchange coil is located in vacuum tank, be also provided with in described vacuum tank food box and place food box put frame, the bottom of described heat exchange coil and food box touches, described vacuum pump and the gas-liquid separator connected successively, refrigeration compressor, container for storing liquid, condenser are all arranged under cabinet chamber, the inlet pipe of described vacuum pump is connected by normally closed vacuum solenoid with the outlet pipe of cold-trap, and the inlet pipe of described cold-trap is connected with the vacuum outlet pipe of vacuum tank by back pressure manual ball valve, the refrigeration agent effuser of described cold-trap is connected with gas-liquid separator, the expansion valve of described cold-trap is connected with container for storing liquid by normally closed solenoid valve LDF, one end of described heat exchange coil by quick-frozen expansion valve respectively with container for storing liquid, condenser connects, it is provided with normally closed solenoid valve SDF1 between described quick-frozen expansion valve and container for storing liquid, quick-frozen expansion valve, condenser, container for storing liquid realizes connecting by three-way solenoid valve, the other end of described heat exchange coil respectively with gas-liquid separator, container for storing liquid connects, normally closed solenoid valve SDF2 it is provided with between described heat exchange coil and gas-liquid separator, normally closed solenoid valve GDF2 it is provided with between described heat exchange coil and container for storing liquid.
2. the intermittent vacuum freeze drying plant of a kind of greenery based food according to claim 1, it is characterised in that: the top of described food box and bottom are equipped with some micropores.
3. the intermittent vacuum freeze drying plant of a kind of greenery based food according to claim 1, it is characterised in that: the shaking device shaken about being also provided with control food box in described vacuum tank.
4. the intermittent vacuum freeze drying plant of a kind of greenery based food according to claim 3, it is characterized in that: described shaking device comprises micromotor, cam and food box vibrator, described micromotor is electrically connected with cam and drives cam rotation, shakes about described cam driven food box vibrator.
5. the intermittent vacuum freeze drying plant of a kind of greenery based food according to claim 1, it is characterised in that: described Controlling System comprises micro-chip and touch display screen.
6. the intermittent vacuum freeze drying plant of a kind of greenery based food according to claim 5, it is characterised in that: described heat exchange coil top is provided with sample box, is also provided with the video frequency pick-up head of sample state in shooting, monitoring sample box in described vacuum tank.
7. the intermittent vacuum freeze drying plant of a kind of greenery based food according to claim 1, it is characterised in that: described cold-trap outer disk is wound with ptc heater.
8. the intermittent vacuum freeze drying plant of a kind of greenery based food according to claim 1, it is characterised in that: described cold-trap comprises four cold-trap tanks, connects after the parallel connection between two of described cold-trap tank again; The pipe outer wall of cold-trap tank described in each all coils the vaporizing coil for lowering the temperature.
9. the intermittent vacuum freeze drying plant of a kind of greenery based food according to claim 1, it is characterised in that: described vacuum tank is provided with vacuum tank door, and the junction of vacuum tank door and vacuum tank is provided with multiple spot screw thread spinning silica gel sealing bar.
10. the intermittent vacuum freeze drying plant of a kind of greenery based food according to claim 1, it is characterised in that: described cabinet comprises frame, insulation can door and dismountable thermal insulation box plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410588284.0A CN104457142B (en) | 2014-10-28 | 2014-10-28 | The intermittent vacuum freeze drying plant of a kind of greenery based food |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410588284.0A CN104457142B (en) | 2014-10-28 | 2014-10-28 | The intermittent vacuum freeze drying plant of a kind of greenery based food |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104457142A CN104457142A (en) | 2015-03-25 |
| CN104457142B true CN104457142B (en) | 2016-06-01 |
Family
ID=52903593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410588284.0A Expired - Fee Related CN104457142B (en) | 2014-10-28 | 2014-10-28 | The intermittent vacuum freeze drying plant of a kind of greenery based food |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104457142B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043019A (en) * | 2015-07-01 | 2015-11-11 | 苏州赛弗尔机械有限公司 | Low-temperature freeze dryer |
| CN105077539B (en) * | 2015-08-03 | 2018-02-27 | 天津市傲绿农副产品集团股份有限公司 | A kind of energy-saving fruits and vegetables vacuum freeze-drying system |
| CN107525349A (en) * | 2016-06-21 | 2017-12-29 | 上海拓纷机械设备有限公司 | A kind of family expenses freeze dryer |
| CN106440672A (en) * | 2016-11-23 | 2017-02-22 | 重庆市万盛区军均林业开发有限公司 | Quick-freezing and drying system of lemons |
| CN108013122A (en) * | 2017-11-17 | 2018-05-11 | 湖南神乐生态庄园有限公司 | A kind of quick-frozen product freezing plant of organic vegetable fruits and vegetables |
| CN109883162A (en) * | 2019-02-22 | 2019-06-14 | 上海卫星装备研究所 | Cold-hot integrated formula vacuum freeze-drying machine |
| CN112833625A (en) * | 2021-01-21 | 2021-05-25 | 定州康拓科技有限公司 | Drying device for biological fertilizer and using method thereof |
| CN113720106A (en) * | 2021-09-02 | 2021-11-30 | 南京蒙故奇科技有限公司 | Medical vacuum freeze drying device |
| CN118049841B (en) * | 2024-04-16 | 2024-06-07 | 山东祥隆医药研究院有限公司 | Drying and sterilizing equipment and method for traditional Chinese medicine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3963126B2 (en) * | 2002-06-06 | 2007-08-22 | 株式会社大川原製作所 | Vacuum dryer with freezing mechanism for liquid raw materials |
| CN100342839C (en) * | 2005-01-28 | 2007-10-17 | 云南昆船设计研究院 | Chinese medicine preparation and set of apparatuses thereof |
| CN201731727U (en) * | 2009-11-26 | 2011-02-02 | 浙江大学 | Experimental saturated wooden antiquity freezing dryer |
| CN201744286U (en) * | 2010-06-12 | 2011-02-16 | 陈蓉 | Adjustable refrigerant flow refrigerated dryer |
-
2014
- 2014-10-28 CN CN201410588284.0A patent/CN104457142B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104457142A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104457142B (en) | The intermittent vacuum freeze drying plant of a kind of greenery based food | |
| CN201706831U (en) | Energy-saving constant-temperature constant-humid preserving refrigeratory system | |
| CN204787394U (en) | Fountain refrigerating plant | |
| CN105333672B (en) | Drawer-type refrigerator | |
| CN106871551B (en) | Refrigerator and its do not shut down defrosting control method | |
| CN206812752U (en) | A kind of refrigerator car refrigeration system | |
| CN105627667B (en) | Microwave disinfection dries refrigerator | |
| CN209181354U (en) | A kind of intelligent antistaling experimental box for fruits and vegetables | |
| CN109163510A (en) | It is a kind of to fix mobile foods freezing drying device | |
| CN108007075B (en) | The defrosting de-icing method of vacuum freeze drier system and the system | |
| CN107543351A (en) | Refrigerator and its control method | |
| CN207035701U (en) | A kind of vacuum freeze drier | |
| CN2736717Y (en) | Refrigerator | |
| CN106225371A (en) | Refrigerator compartment and control system thereof | |
| CN108981258A (en) | A kind of refrigerator-freezer with convenient for storage article | |
| CN2371148Y (en) | Container device for storing cold or hot food | |
| CN209136330U (en) | Purification water tank | |
| CN111854276B (en) | Refrigerating appliance | |
| CN218936817U (en) | Domestic freeze drying equipment | |
| CN110953845A (en) | LNG vacuum freeze drying system and using method | |
| CN106858271B (en) | Heat pump type low-temperature high-humidity air unfreezing device | |
| CN109008693A (en) | Purification water tank | |
| CN204594073U (en) | Refrigerator | |
| CN106016898A (en) | Air cooling compressor freezing and refrigerating box and moisture preservation control method thereof | |
| CN109140893B (en) | Refrigerator with heat preservation and humidification functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20201028 |