CN2930315Y - Material dewatering and fresh keeping device - Google Patents
Material dewatering and fresh keeping device Download PDFInfo
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- CN2930315Y CN2930315Y CN 200620038883 CN200620038883U CN2930315Y CN 2930315 Y CN2930315 Y CN 2930315Y CN 200620038883 CN200620038883 CN 200620038883 CN 200620038883 U CN200620038883 U CN 200620038883U CN 2930315 Y CN2930315 Y CN 2930315Y
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Abstract
A materiel dehydration, cooling and preservation device is provided, which comprises a vacuum processing room(1), a cooling heat exchanger(12), a vacuum air pump(9) used to vacuumize for the vacuum processing room(1), a vacuum valve C(8) arranged on the connection pipeline of the vacuum air pump(9), a fan(7) that one end is communicated with the cooling heat exchanger(12) to draw out air from the vacuum processing room and the other end is communicated with the heating heat exchanger (3)to supply air to the heating heat exchanger(3); a heating heat exchanger(3), a vacuum valve A (5)and a vacuum valve B(6) which are separately arranged on the pipeline between the cooling heat exchanger(12) and the heating heat exchanger(7) and the pipeline between the heating heat exchanger and the fan(7), a filter(19) valve used to circle air to the vacuum processing room(1) and a control cabinet(18). The utility model is characterized in that the energy consumption of processing is low, the temperature and humidity inside and outside of the material are well- distributed, the humidity after processing can be controlled in 70-88 percent without deforming, and the machine can be used in storage and transport of long time and low temperature.
Description
Technical field
The utility model relates to a kind of easy wholefood that evaporates of internal moisture of edible mushroom or dehydration, cooled fresh-keeping device of material of comprising, particularly, the utility model relates to a kind of material dewatering, cooled fresh-keeping device.
Background technology
In recent years, comprise the easily wholefood or the fast development of material industry of evaporation of internal moisture of edible mushroom, but its storage, transportation and sell freezing, can and the dry product forms of adopting more.But it is low that the humiture of these form natural edible product or material requires, and especially the freshness of edible mushroom is poor, influences its edible and commercial value thereby go up largely.Therefore, comprise that the easy wholefood that evaporates of internal moisture of edible mushroom or the long-period freshness preserving storage and the transportation of material become this area one big problem.
For to the internal moisture that comprises edible mushroom easily the wholefood of evaporation or material carry out fresh-keepingly, taked the method and the device thereof of freezing or cool drying in the past.
For example, number of patent application provides a kind of vacuum freshness retaining complete set of equipments for China of " CN200410013945.3 " applies for a patent, and solve a big volume fruit-vegetable food storage equipment cost degradation difficult problem, but this patent is limited to storage facilities.Again, number of patent application is a kind of for the Chinese utility model patent of " CN03228869.7 " relates to prevents the vacuum cooled freshness preserving equipment that damages to plants caused by sudden drop in temperature.This equipment mainly comprises vacuum tank, water vessel, refrigeration unit, vavuum pump etc., it is characterized in that being communicated with on the vacuum tank the anti-mechanism of damaging to plants caused by sudden drop in temperature, and can carry out fresh-keeping precooling to fruits and vegetables etc.But its effect on moisture extraction is non-adjustable, and is difficult to the water capacity of food such as really dredging is controlled at below the certain level.
Number of patent application relates to a kind of external cold source type vacuum cooled freshness preserving equipment for the Chinese utility model patent of " CN03228870.0 ".This equipment mainly comprises vacuum tank, water vessel, vavuum pump etc., it is characterized in that external low-temperature receiver device.Owing to saved refrigeration unit, make complete equipment comparatively light, cost is low.But, as above-mentioned, edible fungi is carried out Preservation Treatment as desire, then its effect on moisture extraction is non-adjustable, and not pre-dehumidifying part is difficult to the fresh food bacterium is cooled off fast, dehumidifies, and can't reach the temperature and humidity of fresh-keeping requirement.And be difficult to the water capacity of edible mushroom is controlled at certain level.
Again, number of patent application has disclosed the freeze drying plant of a kind of food, medicine etc. for the Chinese utility model patent of " CN02123067.6 ", its main part is made up of the upright cylindric pipeline and the chuck that are used for liquid material is frozen on the inner-walls of duct face, described chuck is trapped among each pipeline periphery with the roughly concentrically ringed cylindrical tubular around pipeline, and hot media circulates in described chuck.Number of patent application has disclosed a kind of automatic continuous vacuum freeze drier for the Chinese utility model patent of " CN02224675.4 ", partly form by unit main drying module, small-sized refrigerator, vavuum pump and control system etc., but the production line of the synthetic different scales of random set, article one, circular orbit has connected all production links, guarantee the uninterrupted continuously running of production line, thereby reduce vacuum freeze drier cost and operating cost thereof.Number of patent application is used for food freeze-drying processing for the Chinese utility model patent of " CN02292077.3 " has disclosed continuously or intermittently foods freezing drying device of a kind of water vapour coagulator overhead.Its structure is: it comprises square dryness storehouse, and the middle part of square dryness storehouse is provided with heating plate; The bottom is provided with the ground rail, on the top, the inside of dryness storehouse water vapour coagulator is housed, and water vapour coagulator is provided with switch, and links to each other with hinge, hydraulic cylinder.Realize intermittent duty.
In sum, the carrying out the deficiency that precooling, dehumidifying exist with cooling such as freezer or freeze drying plant and be of conventional art: the speed of cooling is slow; Effect on moisture extraction is poor; Inside and outside humidity is very inhomogeneous, or need freeze earlier, has destroyed the form as materials such as fresh food bacterium, causes the distortion of edible fungi surface, that is, and and the generation of shrivelled, collapse phenomenon.Can't be used for fresh-keeping processing with the edible mushroom of aquatic foods product form sale.Though and the cooling velocity of vacuum cooled is very fast, dehumidifying is even, and its moisture removal to edible mushroom can not be controlled, and can not realize that the fresh food bacterium of various water capacities all reaches the water capacity of fresh-keeping requirement.In addition, said method can't carry out long fresh-keeping storage or transportation to edible mushroom etc.
For realizing being suitable for long-time fresh-keeping storage and transportation, the fresh-retaining preserving phase that how to prolong as fresh material such as fresh food bacterium becomes this area one big problem.
Expert's result of study shows both at home and abroad: fresh-keeping and its breathing of edible mushroom, enzymatic reaction, germ contamination etc. are factor-related.On this basis, multiple preservation methods such as precooling, radiation, subatmospheric pressure storage, Electromagnetic Treatment, chemicals have successively been proposed, and cooperate deepfreeze or controlled atmosphere deepfreeze to control the residing environmental condition of edible mushroom, suppress the activity of its metabolism and corruptibility microorganism, obtained certain effect.
For example, radiation preservation is the new technology of edible fungus fresh-keeping, is to use radiation source (as radio isotope cobalt 60 etc.) that edible mushroom is carried out radiation and can suppresses its metabolic response speed, kills putrefactive microorganisms and pathogen, prolongs the freshness date of edible mushroom.But China edible mushroom place of production does not generally possess radiation condition mainly in the rural area, and therefore, this preservation technique practical range also has certain limitation at present.
And for example, decompression fresh-keeping storage is further developing of controlled atmosphere cold storage, and its principle is to reduce air pressure, makes all corresponding reduction of dividing potential drop (content) of all gases component in the air, creates a low O
2The condition of dividing potential drop plays the effect of similar air conditioned storage.But subatmospheric pressure storage is very high to the requirement of strength of container, and the subatmospheric pressure storage storehouse cost of big volume is higher.Remote transportation difficulty.
Electromagnetic Treatment is fresh-keeping to be edible mushroom to be placed in high frequency magnetic field or the high voltage electric field handle, and can reach to suppress breathing, delay senility, the rotten purpose of minimizing.But also be not used in the utility unit of large-scale production at present.
Chemicals is fresh-keeping to be to comprehend with appropriate locations such as growth inhibitor, enzymatic inactivation agent, anticorrisive agent, antioxidants to obtain certain effect, but has the medicament residue phenomenon, and the scale processing cost is bigger, and the fresh-keeping date is limited.
In existing processing method for keeping fresh, adopting back fast precooling cooperation deepfreeze is one of basic skills that generally adopts at present.
Precooling freshness retaining be exactly wholefoods such as the edible mushroom of will newly gather or material in transportation, storage or first being processed, remove the heat that brings in mushroom room (bed) as early as possible, make its temperature drop to the process of predetermined value (as 0-3 ℃) rapidly.
Precooling is the first step of creating good temperature environment.At first, remain lived organism behind the edible mushroom collection, carrying out vigorous breathing and evaporation, emit respiration heat, in addition, all have certain heat from the mushroom room during edible mushroom collection, the temperature after both interactions can make and adopt around the edible mushroom constantly raises, the nutritional labeling of decomposition and consumption self causes edible mushroom aging fast, freshness to descend.The temperature of edible mushroom is high more, and respiratory intensity is high more.Can reduce edible mushroom product temperature rapidly through precooling, effectively suppress its respiration, make edible mushroom keep low life level, reduce the consumption of nutritional labeling, reduce acetate releasing quantity, delay its aging.The edible mushroom temperature is reduced to about zero degree from twenties degree, and respiratory intensity can reduce 80～90%.
After precooling again the storage can prolong storage period, behind the edible mushroom collection precooling more early, fast more, the consumption of nutritional labeling is few more, freshness date is long more.
The inside and outside humidity of thalline is inhomogeneous, the distortion of edible fungi surface can not be controlled, be caused to its moisture removal to edible mushroom but the existing preservation method of adopting back fast precooling cooperation deepfreeze still can't solve, that is the problem of the generation of shrivelled or brown stain,, putrefactive phenomenon.
In addition, in the fresh-keeping transporting procedures of reality, also find, if adopt the existing back fast precooling of adopting to cooperate the preservation method of deepfreeze that edible mushroom is carried out fresh-keeping storage, after the then same precooling, the different bright mushroom of water capacity after storing and transporting at a distance, fresh-keeping effect is the widely different of fresh keeping time.That is, can't carry out suitable Preservation Treatment to the edible mushroom of different water capacities.
Summary of the invention
For addressing the above problem, the purpose of this utility model is: the wholefood of the easy evaporation of a kind of internal moisture or dehydration, the cooled fresh-keeping device of material are provided, particularly, provide a kind of material dewatering, cooled fresh-keeping device.
Material dewatering of the present utility model, cooled fresh-keeping device are to adopt dehumidifying and precooling to process at one time technology to wholefood such as fresh food bacterium or material.The wind circulating condensing that in the enclosed vacuum Processing Room fresh food bacterium is carried out under the normal temperature dehumidifies earlier, reach after the temperature and moisture removal of setting, again the fresh food bacterium is carried out the fast vacuum cooling, further remove the water capacity in the edible mushroom thalline, realize the purpose of control dehumidifying.In the humiture balance that keeps the edible fungi inside and outside, one or many ground carries out the dehumidifying of wind circulating condensing and vacuum is subsequently cooled off fast, dehumidified.Take this, can not cause the pollution of fresh food bacterium, also can not damage the mode of appearance of fresh food bacterium, keep its normal metabolic.
According to material dewatering of the present utility model, cooled fresh-keeping device, the moisture removal of edible mushroom can be regulated according to the difference of the water capacity of edible mushroom after gathering of different cultivars and the water capacity of fresh-keeping requirement, the fresh food bacterium can cooled off fast, evenly in the dehumidifying, reaching the temperature and humidity of different fresh-keeping requirement thus.
Material dewatering of the present utility model, cooled fresh-keeping device power consumption of polymer processing are low; Temperature, humidity inside and outside the thalline are even; Edible mushroom moisture content after the Preservation Treatment can be controlled in 70～88%; No areal deformation can be used for long deepfreeze and stores, transports (30～60 days).Storage under the normal temperature, delivery period can reach 6～10 days.When edible mushroom eats, keep original color, shape and nutrition, as before fresh.
Material dewatering of the present utility model, cooled fresh-keeping device are used for following preservation method:
1. the wind circulating condensing dehumidifies in advance
Constituting airtight system of processing, be equipped with in the vacuum Processing Room of the wholefood of adopting back fresh food bacterium etc. or material, carrying out the wind circulating condensing 10～40 ℃ of wind-warm syndrome dehumidifies in advance, with the humid air in this vacuum Processing Room with suction vacuum-1～-pressure of 40Kpa under, suck surface temperature and be in 4～-20 ℃ the cooling heat exchanger, make the steam in the humid air be condensed into aqueous water, enter in the water receiver at this;
The air that steam is wherein removed in condensation is blown in the heating heat exchanger with blast pressure 0～2Kpa, is heated to be 10～40 ℃ dry air at this;
Dry air after the above-mentioned heating is back in the vacuum Processing Room again, enter the edible mushroom that places in the vacuum Processing Room, take the wholefood or the steam in the material of fresh food bacterium etc. out of after, be inhaled in the cooling heat exchanger again, condensation goes out water wherein, enters in the water receiver;
Take this, remove wholefood or material surface and the shallow top layer contained humidity of fresh food bacterium etc., that is, remove wholefood of fresh food bacterium etc. or the moisture 1～10% in the material body, simultaneously, with the scope of adjustment to 20～35 in the wholefood of fresh food bacterium etc. or the material body ℃.
According to material dewatering of the present utility model, cooled fresh-keeping device, the method of the pre-dehumidifying of control is: wholefood by pre-water removal and fresh food bacterium etc. or material dehumidify in advance temperature combined value or make the edible mushroom indeformable permission water removal (generally being no more than 10%) that dehumidifies in advance continuously, control the pre-dehumidifying stage and remove wholefood or the contained amount of moisture of material of fresh food bacterium etc., be generally 1～10%;
2-A.. vacuum is cooled off fast, dehumidifying, sam
After the water removal after the pre-dehumidifying of the wholefood of fresh food bacterium etc. or material and the temperature after the pre-dehumidifying reach setting range, the vacuum Processing Room is vacuumized, air pressure in the vacuum Processing Room was dropped to absolute pressure 480～2000Pa at 10～40 minutes, make wholefood or the material temperature of fresh food bacterium etc. in 10-40 minute, be reduced to-1～18 ℃, further control dehumidifying.
According to material dewatering of the present utility model, cooled fresh-keeping device, the foundation that cool off fast in vacuum, the control of dehumidifying stage dehumidifies is, vacuum cooled is in closed container, when reducing air pressure to 480～2000Pa, make moisture rapid evaporation in the wholefood of fresh food bacterium etc. or the material, and therefrom capture the latent heat of vaporization.The difference of wholefood of the fresh food bacterium the when water yield that evaporation is removed and vacuum cooled begin etc. or temperature of charge and the final precooling temperature that requires has direct relation.Because the heat that wholefood of fresh food bacterium etc. or material cooling are discharged is almost all taken away by the latent heat of vaporization of water evaporates in the material, therefore, to concrete cooling device and concrete material kind, the quantitative relation (Psz=PwK (Tx-Tz)) that has it to determine.Moisture removal in the time of thus can be to vacuum cooled is controlled.Water removal when Psz is vacuum cooled (Kg) is usually in 3%～6% scope.
3. temperature, the humidity when the wholefood of fresh food bacterium etc. or material inside and outside is even, when moisture content reaches 70-88%, recovers air pressure in the vacuum Processing Room to atmospheric pressure, takes out.
According to material dewatering of the present utility model, cooled fresh-keeping device, can adjust the water capacity of material to be machined by the kind and the requirement of different material, fresh material is cooled off fast, evenly dehumidified, reach the temperature and humidity of fresh-keeping requirement.In addition, the power consumption of polymer processing of material dewatering of the present utility model, cooled fresh-keeping device is low, the efficient height, and the temperature of material inside and outside, humidity are evenly, moisture content is at 70-88%, and no areal deformation can be used for long-time storage, transportation under the low temperature.
Material dewatering of the present utility model, cooled fresh-keeping device are to adopt dehumidifying and precooling to process at one time technology to wholefood of fresh food bacterium etc. or material.The wind circulating condensing that in the enclosed vacuum Processing Room fresh material is carried out under the normal temperature dehumidifies earlier, reach after the pre-dehumidifying temperature and pre-moisture removal combination of setting, again fresh material is carried out the fast vacuum cooling, further remove the water capacity in the material body, in the humiture balance that keeps the material inside and outside, dehumidifying of wind circulating condensing and vacuum subsequently that one or many ground carries out under the normal temperature are cooled off fast, are dehumidified.Take this, can not cause the pollution of fresh material, also can not damage the mode of appearance of fresh material, keep its normal metabolic.
In addition, according to material dewatering of the present utility model, cooled fresh-keeping device, power consumption of polymer processing is low, and the temperature of material inside and outside, humidity are evenly, moisture content is 70～88%, and no areal deformation can be used for deepfreeze and stores, transports.Storage under the low temperature, delivery period can reach 30～60 days.Storage under the normal temperature, delivery period can reach 10～20 days.
According to material dewatering of the present utility model, cooled fresh-keeping device, the airtight system of processing device of described device for being made of following member comprises:
Be used for material is carried out the enclosed vacuum Processing Room of Preservation Treatment;
The cooling heat exchanger that is communicated with above-mentioned vacuum Processing Room;
Be arranged at this cooling heat exchanger below, be used to accept water receiver from the condensed water of cooling heat exchanger;
Be used for the vavuum pump that in the vacuum Processing Room, vacuumizes;
Be arranged at the vacuum valve on the connecting line of vavuum pump;
One end is communicated with cooling heat exchanger, is used for the blower fan to aspirating wind, the connection of one end in the vacuum Processing Room and blowing to heating heat exchanger;
The heating heat exchanger that is communicated with the vacuum Processing Room;
Be arranged at the vacuum valve on the pipeline between cooling heat exchanger and the blower fan and be arranged at blower fan and heating heat exchanger between vacuum valve on the pipeline;
Be used in the vacuum Processing Room, carrying out the Filter valve of return-air;
Switch board.
It is desirable to, according to material dewatering of the present utility model, cooled fresh-keeping device, in the vacuum Processing Room of described preservation device, at the nearly cooling heat exchanger end of body feed tank, install around the airtight described body feed tank and the deep bead in vacuum Processing Room wall gap, stop from the hot blast of heating heat exchanger along body feed tank all around and the gap of vacuum Processing Room wall directly enter cooling heat exchanger.
It is desirable to,, be provided with vacuum pressure, temperature sensor and the water removal sensor that is used to monitor interior vacuum pressure of vacuum Processing Room and temperature with water receiver on the described vacuum Processing Room according to material dewatering of the present utility model, cooled fresh-keeping device.In addition, on the described water receiver discharging valve is set, is used to discharge water.
It is desirable to,, separate by dividing plate between the lower end of described heating heat exchanger and the body feed tank according to material dewatering of the present utility model, cooled fresh-keeping device.Thus, make the hot blast that is blown into heating heat exchanger, all enter the vacuum Processing Room and keep clear of cooling heat exchanger one end, make hot blast all through entering cooling heat exchanger behind the material.
It is desirable to, according to material dewatering of the present utility model, cooled fresh-keeping device, described cooling heat exchanger is provided with and is used for providing in cooling heat exchanger the feed liquor of low-temperature receiver to take over and the return-air adapter, and described heating heat exchanger is provided with the liquid, the vapour that are used for providing thermal source in heating heat exchanger and enters adapter and return the liquid adapter.
Devices such as described switch board comprises the Programmable Logic Controller that is used to install connected system and starts, monitor, change, stop, be arranged at vacuum pressure sensor on the vacuum Processing Room, temperature sensor, water sensor, display, protector, switch, relay.
It is desirable to,, on the air pipeline of described cooling heat exchanger outlet side and heating heat exchanger inlet end, vacuum valve is installed according to material dewatering of the present utility model, cooled fresh-keeping device.
On the air pipeline of cooling heat exchanger outlet side and heating heat exchanger inlet end, vacuum valve is installed, when the gas leakage of blower fan (air pump) has influence on pressure in the further reduction vacuum Processing Room, close the vacuum valve on blower fan (air pump) and suction, the blowing pipeline, partition blower fan (air pump) is communicated with vacuum system.Realize the strictness sealing of vacuum system.Guarantee that vacuum system meets the requirements of force value in the time of technological requirement.
Thereby, it is desirable to, when the wooden rotten mushroom of processing (as mushroom), in above-mentioned material dewatering of the present utility model, cooled fresh-keeping device, air pressure in the vacuum Processing Room to be dropped to absolute pressure 500～700Pa, make the temperature of edible mushroom in 10-40 minute, be reduced to-1～2 ℃.Humidity is controlled at 74～76%.At this moment, on the air pipeline of cooling heat exchanger outlet side and heating heat exchanger inlet end, vacuum valve is installed, when the gas leakage of blower fan (air pump) has influence on pressure in the further reduction vacuum Processing Room, close the vacuum valve on blower fan (air pump) and suction, the blowing pipeline, partition blower fan (air pump) is communicated with vacuum system, realizes the strictness sealing of vacuum system.Guarantee that vacuum system meets the requirements of force value in the time of technological requirement.
According to material dewatering of the present utility model, cooled fresh-keeping device, can carry out the aforesaid pre-dehumidification treatments of wind circulating condensing, aforesaid in the vacuum Processing Room to the wholefood of fresh food bacterium etc. or material by the vacuum in the vacuum Processing Room cool off fast, the dehumidify uniform dehumidification treatments of further temperature that constitutes and the processing of suitable water capacity.In the above-mentioned wind circulating condensing pre-dehumidification treatments stage, wholefood or the material of fresh food bacterium etc. are being controlled dehumidifying, promptly remove wholefood of fresh food bacterium etc. or the part moisture in the material in advance, remove the wholefood of fresh food bacterium etc. or the moisture of material surface and shallow-layer, when reaching elementary dehumidifying, wholefood or the material temperature that can regulate fresh food bacterium etc.; In the described further temperature uniform dehumidification treatments stage of cooling off fast, dehumidifying by the vacuum in the vacuum Processing Room, in uniform decrease in temperature that wholefood or material to fresh food bacterium etc. carry out the material inside and outside, dehumidifying, can be according to different material varieties, make in the wholefood of fresh food bacterium etc. or the material body to keep suitable moisture content.
According to material dewatering of the present utility model, cooled fresh-keeping device, power consumption of polymer processing is low, and the temperature of material inside and outside, humidity are evenly, moisture content is at 70-88%, and no areal deformation can be used for long term storage, transportation under low temperature or the normal temperature.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the concrete organigram of an embodiment of the present utility model.
Fig. 3 is among Fig. 2 embodiment, and B-B is to the cutaway view in cross section.
1. vacuum Processing Rooms among the figure, 2. thermal source feed liquor (vapour) is taken over, 3. heating heat exchanger, 4. thermal source returns liquid adapter, 5. vacuum valve A, 6. vacuum valve B, 7. blower fan (air pump), 8. vacuum valve C, 9. vavuum pump, 10. the low-temperature receiver feed liquor is taken over, and 11. low-temperature receiver return-airs (liquid) are taken over, 12. cooling heat exchangers, 13. water receiver, 14. discharging valves, 15. deep beads, 16. body feed tank, 17. water sensor, 18. switch boards, 19. return-air Filter valves, 20. pressure sensor, 21. dividing plate, 22. vacuum Processing Room outer wall reinforcements, 23. vacuum Processing Room housings, 24. temperature sensor, 25. vacuum Processing Room doors.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The brown mushroom of fresh food bacterium of gathering is carried out Preservation Treatment.The edible mushroom water content height of newly gathering is between 90%-95%.Require fresh-keeping processing back temperature at 0～3 ℃, humidity is 85～88%.
The material dewatering of present embodiment, cooled fresh-keeping apparatus structure are as follows.
In the structural representation of material dewatering of the present utility model shown in Figure 1, cooled fresh-keeping device and embodiment shown in Figure 2, connect cooling heat exchanger 12 at the B of enclosed vacuum Processing Room 1 end, upper end at vacuum Processing Room 1, heating heat exchanger 3 is installed, dividing plate 21 is set between heating heat exchanger and material.
The inlet end of cooling heat exchanger 12 is communicated with the B end of vacuum Processing Room 1, the outlet side of cooling heat exchanger 12 is communicated with the suction line of vavuum pump 9 and the suction line of blower fan (air pump) 7, the air entry place of the vavuum pump 9 on the pipeline that vavuum pump 9 is connected to cooling heat exchanger 12 is provided with vacuum valve C8.
Thermal source feed liquor (vapour) adapter 2 and thermal source are set on heating heat exchanger 3 return liquid adapter 4.Thermal source can be hot water, deep fat, hot blast or steam.Also can utilize the exhaust of refrigeration compressor to make thermal source, but need special-purpose heat exchanger.
Below above-mentioned cooling heat exchanger 12, be provided with the water receiver 13 that is used to accept from the condensed water of this cooling heat exchanger.Be provided with discharging valve 14 below water receiver 13, be provided with water sensor 17 in water receiver 13 sides, the signal of water sensor is connected on the controller in the switch board 18.
On the housing that is positioned at vacuum Processing Room 1B end top, offer the perforate of the gas blow pipe that connects blower fan (air pump) 7, heating heat exchanger 3 is communicated with blower fan (air pump) 7, on the air blowing pipeline of blower fan (air pump) 7 and suction line, install vacuum valve A5 and vacuum valve B6 respectively additional, be used for being communicated with or interrupt blower fan (air pump) 7 with being connected of vacuum Processing Room 1.
Below heating heat exchanger 3 and between the body feed tank 16,, dividing plate 21 separates because being set.Thus, as described below, make the hot blast that is blown into heating heat exchanger 3 only enter the A end of vacuum Processing Room 1 above the dividing plate 21 along this.
B end in vacuum Processing Room 1, as Fig. 2, shown in Figure 3, nearly cooling heat exchanger 12 inlet ends of the body feed tank in the vacuum Processing Room are installed around the airtight described body feed tank 16 and vacuum Processing Room 1 deep bead 15 in locular wall gap all around.Hot blast from heating heat exchanger 3 is all passed through from be placed in the edible mushroom body feed tank.Take away the moisture in the edible mushroom and adjust the edible mushroom temperature.Thus, can avoid hot blast from around the space directly flow to cooling heat exchanger 12.
Be useful on system's switch board 18 that operation is controlled to system in vacuum Processing Room 1 arranged outside.
In addition, perforate connects vacuum pressure sensor 20 and temperature sensor 24 on vacuum Processing Room housing 23, so that vacuum pressure, temperature signal in the vacuum Processing Room 1 are electrically connected on the controller in the switch board 18.
The fresh-keeping operation of wholefoods such as the edible mushroom of the utility model embodiment 1 or material is as follows.
The fresh food bacterium (as brown mushroom) of gathering is packed in the basket that ventilates, be placed in the vacuum Processing Room 1.
(1) the wind circulating condensing dehumidifies in advance
Constituting airtight system of processing, be equipped with in the vacuum Processing Room 1 of adopting back fresh food bacterium, start blower fan (air pump) 7,20～40 ℃ of wind-warm syndrome, carrying out the wind circulating condensing dehumidifies in advance, with the humid air in this vacuum Processing Room with suction vacuum-10～-pressure of 20Kpa under, suck surface temperature and be in 4～-20 ℃ the cooling heat exchanger 12, make the steam in the humid air be condensed into aqueous water, enter in the water receiver 13 at this.
Shown in arrow among the figure flowed to, the air that steam is wherein removed in condensation, entered in the heating heat exchanger 3 with blast pressure 0～2Kpa through blower fan (air pump) 7, is heated to be 20～40 ℃ dry air at this.
Shown in arrow among the figure flows to, the hot-air channel that dry air after the above-mentioned heating forms along dividing plate 21 upper spaces is back to the A end in the vacuum Processing Room 1 again, since deep bead 15 sealed around the body feed tank 16 with vacuum Processing Room 1 around the gap of locular wall, the hot blast from heating heat exchanger 3 all passed through from be placed in the edible mushroom body feed tank.Take away temperature and moisture in the edible mushroom thalline via this described hot blast.Described deep bead 15 avoid hot blast from around the space directly flow to cooling heat exchanger 12.
Above-mentioned hot blast enters the edible mushroom that places in the vacuum Processing Room, take the steam in the edible mushroom out of after, be inhaled into again in the cooling heat exchanger 12, condensation goes out water wherein, enters in the water receiver 13.
Take this, remove edible fungi surface and shallow top layer contained humidity, that is, remove the moisture 1～10% in the edible mushroom thalline, simultaneously, with the scope of adjustment to 25～30 in the edible mushroom thalline ℃.
The control of pre-moisture removal is, surveys the actual temperature of processed edible mushroom by temperature sensor, by the water removal of the pre-dehumidifying of water sensor actual measurement, data sent into Programmable Logic Controller, and Programmable Logic Controller is according to aforementioned mathematic(al) mode of the present utility model, that is,
Ps＝Pw[Lz-0.0025～0.0018(Tx-Tz)] .....................(1)
Wherein:
The weight of material that Pw-packs into (Kg);
The pre-dehumidifying of Tx-reach temperature (℃), usually 25～30 ℃ of scopes;
The final precooling temperature that requires of Tz-(℃), usually 0～3 ℃ of scope;
Lz-requires total dehumidifying rate (%), usually in 3～10% scopes;
The water removal (Kg) of the pre-dehumidifying of Ps-is usually in 1%～10% scope;
Check comparison, when the Ps value of the Ps value of actual measurement 〉=calculate by Mathematical Modeling (1) according to actual measurement Tx, dehumidifying stage end in advance, the startup vacuum operation of cooling off fast, dehumidify.
(2-A). vacuum is cooled off fast, dehumidifying, sam
After temperature after water removal in the pre-dehumidification process of edible mushroom and the pre-dehumidifying reaches and sets combination range, start vavuum pump 9, vacuum Processing Room 1 is vacuumized, air pressure in the vacuum Processing Room 1 was dropped to absolute pressure 600～800Pa at 10～40 minutes, make the temperature of edible mushroom in 10-40 minute, be reduced to 0～3 ℃, further dehumidifying.
(3) temperature, the humidity when the edible fungi inside and outside is even, when the thalline moisture content reaches 85-88%, recover air pressure in the vacuum Processing Room to atmospheric pressure, form thus the inside and outside temperature of thalline, humidity evenly, moisture content is at 85-88%, the bright brown mushroom of the Preservation Treatment of no areal deformation.Take out freezer or delivery.
Carry out the brown mushroom of Preservation Treatment according to embodiment 1, the inside and outside temperature of thalline, humidity are evenly, moisture content is at 85-88%, and no areal deformation can be used for storage, transportation under the low temperature.Storage under the low temperature, transportation can reach 40-60 days.
New fresh mushroom is carried out Preservation Treatment.The mushroom water content of newly gathering requires fresh-keeping processing back temperature at-1～2 ℃ between 85%-90%, and humidity is 74～76%.
Except in the fresh-keeping operation of the edible mushroom of the utility model embodiment 1, in the quick cooling and dehumidifying operation of above-mentioned operation 2-A.. vacuum, with the air pressure in the vacuum Processing Room at 10～30 minutes, drop to absolute pressure 800～1000Pa, make the temperature of edible mushroom in 10-40 minute, be reduced to 5～8 ℃, afterwards, outside following operation in addition, other carry out Preservation Treatment as embodiment 1.
2-B. the wind circulating condensing dehumidifies again
That is, in described vacuum Processing Room, 5～35 ℃ of wind-warm syndrome, carry out wind circulating condensing dehumidifying once more, it is that airborne steam is removed in condensation in 4～-20 ℃ the cooling heat exchanger that the air in this vacuum Processing Room is sucked surface temperature;
Remove condensation wherein that the air of steam is blown in the heating heat exchanger, be heated to be 10～35 ℃ dry air at this;
Dry air after the above-mentioned heating is back in the vacuum Processing Room again, enters the edible mushroom that places in the vacuum Processing Room, take the steam in the edible mushroom out of after, be inhaled into again in the cooling heat exchanger, condensation goes out water wherein, enters in the water receiver;
Take this, remove edible fungi surface and shallow top layer contained humidity once more, that is, remove the moisture 1～5% in the edible mushroom thalline, simultaneously, with the scope of adjustment in the edible mushroom thalline to-1～2 ℃.
(2-C) in the water removal after the dehumidifying again of edible mushroom and after temperature reaches setting range, the vacuum Processing Room is vacuumized, air pressure in the vacuum Processing Room was dropped to absolute pressure 480～2000Pa at 10～40 minutes, make the temperature of edible mushroom in 10-40 minute, be reduced to-1～2 ℃, further dehumidifying.
Form thus the inside and outside temperature of thalline, humidity evenly, moisture content is at 74-76%, the mushroom edible mushroom of the Preservation Treatment of no areal deformation.Take out freezer or delivery.
Carry out the mushroom of Preservation Treatment according to embodiment 2, the inside and outside temperature of thalline, humidity are evenly, moisture content is at 74-76%, and no areal deformation can be used for storage, transportation under the low temperature.Storage under the low temperature, transportation can reach 40-60 days.
New fresh mushroom is carried out Preservation Treatment.The mushroom water content height of newly gathering between 90%-95%, requires fresh-keeping processing back temperature at-1～2 ℃, and humidity is 74～76%.
Except in the fresh-keeping operation of the mushroom edible mushroom of the utility model embodiment 2, carry out above-mentioned operation 2-B and the operation 2-C except repeating 2 times, other carry out Preservation Treatment as embodiment 2.Form thus the inside and outside temperature of thalline, humidity evenly, moisture content is at 74-76%, the mushroom edible mushroom of the Preservation Treatment of no areal deformation.
Carry out the mushroom of Preservation Treatment according to embodiment 3, the inside and outside temperature of thalline, humidity are evenly, moisture content is at 74-76%, and no areal deformation can be used for storage, transportation under the low temperature.Storage under the low temperature, transportation can reach 40-60 days.
Fresh straw mushroom is carried out Preservation Treatment.The straw mushroom water content of newly gathering requires fresh-keeping processing back temperature at 15～18 ℃ between 89%-94%, and humidity is 84～86%.
Except in the fresh-keeping operation of the edible mushroom of the utility model embodiment 1, in the quick cooling and dehumidifying operation of above-mentioned operation 2-A.. vacuum, with the air pressure in the vacuum Processing Room at 10～30 minutes, drop to absolute pressure 1600～2000Pa, make the temperature of edible mushroom in 10-30 minute, be reduced to 15～18 ℃, other carry out Preservation Treatment as embodiment 1.
Carry out the straw mushroom of Preservation Treatment according to embodiment 4, the inside and outside temperature of thalline, humidity are evenly, moisture content is 84～86%, and no areal deformation, is transported and can be reached 40-60 days at the storage under the low temperature.Storage under 15-20 ℃, transportation can reach 6-8 days.
According to material dewatering of the present utility model, cooled fresh-keeping device, in the above-mentioned wind circulating condensing pre-dehumidification treatments stage, wholefood or the material of fresh food bacterium etc. are being controlled dehumidifying, promptly remove wholefood of fresh food bacterium etc. or the part moisture in the material in advance, remove the moisture of material surface and shallow-layer, when reaching elementary dehumidifying, wholefood or the material temperature that can regulate fresh food bacterium etc.; In the described further temperature uniform dehumidification treatments stage of cooling off fast, dehumidifying by the vacuum in the vacuum Processing Room, in uniform decrease in temperature that wholefood or material to fresh food bacterium etc. carry out the material inside and outside, dehumidifying, can be according to different material varieties, make in the wholefood of fresh food bacterium etc. or the material body to keep suitable moisture content.The moisture removal of material can be regulated according to the difference of the water capacity of different material and the water capacity of fresh-keeping requirement, can cool off fast at wholefood or material thus, evenly in the dehumidifying, reach the temperature and humidity of different fresh-keeping requirement fresh food bacterium etc.
Wholefood or the material power consumption of polymer processing of fresh food bacterium of the present utility model etc. are low; Temperature, humidity inside and outside the thalline are even; Wholefood or the material moisture content of fresh food bacterium after the Preservation Treatment etc. can be controlled in 70～88%; No areal deformation can be used for long-term deepfreeze and stores, transports (30～60 days).Obviously, the wholefood of evaporation or dehydration, the cooling of material store and fresh-keeping storage easily applicable to other internal moisture for wholefood of fresh food bacterium of the present utility model etc. or material.
Claims (5)
1. a material dewatering, cooled fresh-keeping device is characterized in that, the airtight system of processing device of described device for being made of following member comprises:
Be used for material is carried out the enclosed vacuum Processing Room (1) of Preservation Treatment;
The cooling heat exchanger (12) that is communicated with above-mentioned vacuum Processing Room (1);
Be arranged at this cooling heat exchanger (12) below, be used to accept water receiver (13) from the condensed water of cooling heat exchanger;
Be used for the vavuum pump (9) that in vacuum Processing Room (1), vacuumizes;
Be arranged at the vacuum valve C (8) on the connecting line of vavuum pump (9);
One end is communicated with cooling heat exchanger (12), is used for the blower fan (7) to aspirating wind, the connection of one end in the vacuum Processing Room and blowing to heating heat exchanger (3);
The heating heat exchanger (3) that is communicated with vacuum Processing Room (1);
Be arranged at the vacuum valve A (5) on the pipeline between cooling heat exchanger (12) and the blower fan (7) and be arranged at blower fan (7) and heating heat exchanger (3) between vacuum valve B (6) on the pipeline;
Be used in the vacuum Processing Room (1) and carry out the Filter valve (19) of return-air;
Switch board (18).
2. material dewatering as claimed in claim 1, cooled fresh-keeping device, it is characterized in that, nearly cooling heat exchanger (12) end of body feed tank (16) in the vacuum Processing Room (1) of described device, install around the airtight described body feed tank and the deep bead (15) in vacuum Processing Room wall gap, prevention directly enters cooling heat exchanger (12) with the gap of vacuum Processing Room (1) wall from the hot blast of heating heat exchanger (3) all around along body feed tank (16).
3. material dewatering as claimed in claim 1, cooled fresh-keeping device, it is characterized in that, be respectively arranged with the vacuum pressure sensor, temperature sensor and the water removal sensor that are used to monitor interior vacuum pressure of vacuum Processing Room and temperature on the vacuum Processing Room (1) and on the water receiver (13).
4. material dewatering as claimed in claim 1, cooled fresh-keeping device is characterized in that, are separated by dividing plate (21) between described heating heat exchanger (3) and the body feed tank (16).
5. material dewatering as claimed in claim 1, cooled fresh-keeping device, it is characterized in that, described cooling heat exchanger (12) is provided with and is used for providing in cooling heat exchanger the feed liquor of low-temperature receiver to take over (10) and return-air adapter (11), and described heating heat exchanger (3) is provided with the liquid, the vapour that are used for providing thermal source in heating heat exchanger and enters adapter (2) and return liquid adapter (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620038883 CN2930315Y (en) | 2006-01-12 | 2006-01-12 | Material dewatering and fresh keeping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620038883 CN2930315Y (en) | 2006-01-12 | 2006-01-12 | Material dewatering and fresh keeping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2930315Y true CN2930315Y (en) | 2007-08-08 |
Family
ID=38346818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620038883 Expired - Lifetime CN2930315Y (en) | 2006-01-12 | 2006-01-12 | Material dewatering and fresh keeping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2930315Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100506048C (en) * | 2006-01-12 | 2009-07-01 | 上海大生泰保鲜设备有限公司 | Edible fungus antistaling method and apparatus |
| CN106509971A (en) * | 2017-01-20 | 2017-03-22 | 中国烟草总公司郑州烟草研究院 | Device for detecting cooling characteristics of dried cut tobacco and cut tobacco cooling method |
| CN113290022A (en) * | 2021-05-24 | 2021-08-24 | 北京国原新技术有限公司 | Method and apparatus for treating radioactive organic waste |
| RU210990U1 (en) * | 2021-11-29 | 2022-05-16 | Общество с ограниченной ответственностью "КОНЦЕРН "СДА" | Freeze drying device |
-
2006
- 2006-01-12 CN CN 200620038883 patent/CN2930315Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100506048C (en) * | 2006-01-12 | 2009-07-01 | 上海大生泰保鲜设备有限公司 | Edible fungus antistaling method and apparatus |
| CN106509971A (en) * | 2017-01-20 | 2017-03-22 | 中国烟草总公司郑州烟草研究院 | Device for detecting cooling characteristics of dried cut tobacco and cut tobacco cooling method |
| CN113290022A (en) * | 2021-05-24 | 2021-08-24 | 北京国原新技术有限公司 | Method and apparatus for treating radioactive organic waste |
| RU210990U1 (en) * | 2021-11-29 | 2022-05-16 | Общество с ограниченной ответственностью "КОНЦЕРН "СДА" | Freeze drying device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090701 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |