CN206247744U - Using the normal pressure and negative pressure combined drying equipment of self-produced superheated steam - Google Patents
Using the normal pressure and negative pressure combined drying equipment of self-produced superheated steam Download PDFInfo
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- CN206247744U CN206247744U CN201621302451.1U CN201621302451U CN206247744U CN 206247744 U CN206247744 U CN 206247744U CN 201621302451 U CN201621302451 U CN 201621302451U CN 206247744 U CN206247744 U CN 206247744U
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Abstract
The utility model discloses a kind of normal pressure using self-produced superheated steam and negative pressure combined drying equipment, including the self-produced superheat steam drying system of normal pressure and coupled logical negative pressure drying system；The self-produced superheat steam drying system of normal pressure includes atmospheric-compartment drier, first material tray rack, automatic temperature-controlled blower fan heating unit and the first weighing unit；Negative pressure drying system includes negative pressure drying room, second material tray rack, vapor heat exchanger, automatic temperature-controlled radio frequency source heating unit, vacuum unit, condensed steam collector unit and the second weighing unit.The drying equipment structure design science that the utility model is provided is reasonable, normal pressure operational security is high, it is low to equipment and materials requirement, dry it is time-consuming short, it is simple to operate, can continuity drying operation, efficiently solve the high energy consumption that existing dried material is present, time-consuming, the problem of high cost, is suitable to the large-scale promotion application in dry materials industry.
Description
Technical field
The utility model is related to a kind of material drying device, specifically using the normal pressure and negative pressure of self-produced superheated steam
Combined drying equipment.
Background technology
Drying can be prevented effectively from microorganism in surface of material Reproduction, so as to extend Food Shelf-life.But research report
Show that high energy consumption is current drying industry common problem, not only increase the cost of enterprise, while being caused to country
Certain financial burden.In countries such as Germany, Denmark, the energy for drying industry consumption accounts for the 20-25% of national gross energy, and
The U.S., Canada, Britain and France, energy consumption for drying have also accounted for 10-15%.These survey datas fully show：High energy consumption
Problem has become during the whole world dries industry and is difficult to the technical bottleneck that overcomes and solve.
At present, China dries generally using heated-air drying in industry, i.e., with hot-air as medium, by the moisture in material
（Or solvent）Diffusion inside from material gasifies to surface, then from surface of material, so as to reach dry purpose.Heated-air drying work
Skill is simple, relatively low to equipment requirement, but heated-air drying power consumption is excessive, and air has intervened dry as heat-carrying and load humid medium
Dry process, taken away substantial amounts of heat energy and together with smell and dust emission to air in, oxygen promotes the oxidation to make product under high temperature
Poor quality, heat-sensitive substance is easily destroyed, and time-consuming, high energy consumption, the low a series of problems of efficiency.Drying process avoids sky
The latent heat that vapor was intervened and recycled to gas makes saving energy consumption, the important channel of improve quality.
Superheat steam drying as novel dried technology representative, be using superheated steam as dried medium, convection drying
Material, the method for removing moisture removal using psychrometric difference and temperature difference between superheated steam and wet stock.Because its energy-saving effect is aobvious
Work, good drying quality, heat and mass efficiency high, without catching fire and the features such as explosion danger, be particularly well-suited to the product dryings such as food.
The world dries association chairman A. S. Mujumdar will turn into future superheat steam drying with great potential and development prospect
Dry new technology.However, at this stage, the technology of utilization and extention superheat steam drying material also owes maturation relatively in industry, general
The logical superheat steam drying equipment for using there is problems：（1）When drying, high pressure conditions are continuously in hothouse, it is right
Device structure and the requirement of equipment material therefor are higher, and manufacturing expense is high；（2）Vapor-recovery system is needed, whole equipment pole is caused
It is complexity；（3）Superheat steam drying rear end temperature is higher（≥120℃）, cause material burn and local heating and destroy nutrition
Material, and produce and the peculiar smell such as be charred, product quality is not good；（4）The moisture latent heat of vaporization is still in overheating steam drying process, in material
The material of relative low temperature can be heated as heating medium, but because the latent heat of vaporization produces certain condensed water to the cold,
Therefore drying effect of early stage, etc. is reduced.Problem above directly limit the large-scale promotion application of the technology.Thus may be used
See, also need to continue to research and develop more preferably superheat steam drying equipment in industry, the drying for especially reaching energy-efficient effect sets
Standby, this will be of great significance to the development of dry materials industry tool.
Utility model content
The purpose of this utility model is to provide a kind of normal pressure using self-produced superheated steam and negative pressure combined drying equipment, with
Solve the problems, such as that existing design of drying equipment is unreasonable, Steam Recovery utilization rate is low.
The purpose of this utility model is achieved through the following technical solutions：Using the normal pressure and negative pressure of self-produced superheated steam
Combined drying equipment, including the self-produced superheat steam drying system of normal pressure and negative pressure drying system；
The self-produced superheat steam drying system of normal pressure includes atmospheric-compartment drier, be arranged in the constant pressure and dry room the
First title of one material tray frame, the automatic temperature-controlled blower fan heating unit that heat energy is provided for dry materials and weighing weight of material
Weight unit；
The negative pressure drying system includes negative pressure drying room, the second material tray rack being arranged in the negative pressure drying room
The automatic temperature-controlled radio frequency source heating unit of heat energy is provided with vapor heat exchanger, for dry materials, is made in the negative pressure drying room
Make the vacuum unit of subnormal ambient, collect the condensed steam collector unit of condensed water and weighing material in the vapor heat exchanger
Second weighing unit of weight；
In the atmospheric-compartment drier and negative pressure drying system of the self-produced superheat steam drying system of normal pressure in negative pressure drying room
Vapor heat exchanger be connected by steam conveying pipe, the port of export of the vapor heat exchanger and the condensed steam are collected single
Unit is connected.
The automatic temperature-controlled blower fan heating unit includes blower fan, heater, deflector, first being arranged in front of heater
The thermocouple of temperature controller and temperature sensor, the electrical connection of the heater, the first temperature controller and thermocouple；The thermocouple and water conservancy diversion
Plate is arranged on the inside of atmospheric-compartment drier；The heater is circumferentially positioned at the outside of the blower fan or shrouds in the blower fan
It is outside.
It is additionally provided with for real-time monitoring in the self-produced superheat steam drying system of normal pressure and the negative pressure drying system
Dry the temperature monitoring unit of indoor temperature, the temperature monitoring unit include for temperature sense probe, Temperature sampler and
Temperature indicator.
First weighing unit and the second weighing unit include weight sensor, the line of induction and weight display.
The automatic temperature-controlled radio frequency source heating unit includes radio frequency source heater, import system device, the second temperature controller and light
Fine detector, one end of the optic fibre detector is arranged in the negative pressure drying room, the other end and second temperature controller electricity
Connection, second temperature controller is electrically connected with the radio frequency source heater, and the radio frequency source heater is connected with import system device；
The radio frequency source heater is microwave applicator or infrared heater.
The vacuum unit include vavuum pump and steam condenser, the vavuum pump by the steam condenser with it is described
Negative pressure drying room is connected.
The condensed steam collector unit includes water collector and the adjustable pressure fan being connected with the water collector, the collection
Hydrophone is connected by pipeline with the port of export of the vapor heat exchanger.
The vapor heat exchanger is shell and tube vapor heat exchanger, including multiple tubulations layer, and each tubulation layer is uniform side by side
Tubulation is constituted, and tubulation layer is arranged alternately with the pallet layer on second material tray rack, so that vapor heat exchanger is done with being more uniformly distributed
Material on dry pallet.
The chamber body outer wall of the atmospheric-compartment drier and negative pressure drying room is equipped with heat-insulation layer, and this can reduce unnecessary heat energy
Loss.
Compared with prior art, its Heterosis exists the utility model：
（1）The equipment that the utility model is provided avoids separately setting superheated steam producer in superheat steam drying system,
Vaporization is heated as vapour source by the use of material itself moisture, equipment production cost is saved, and reduces energy ezpenditure；
（2）The equipment and the working condition of drying means that the utility model is provided are normal pressure, it is to avoid traditional superheated steam
The working condition of drying equipment continuous high-pressure, so as to reduce the requirement to device structure and material, and then reduces device fabrication
Cost and the danger coefficient of production operation；
（3）The equipment that the utility model is provided can utilize the latent heat high efficiente callback of superheated steam, reach energy-saving and emission-reduction
Effect；
（4）The equipment that the utility model is provided is in drying process, and process time of the material in constant pressure and dry room is short, right
Materials quality is substantially without influence；Automatic temperature-controlled radio frequency source heating unit is provided with negative pressure drying room, drying efficiency is improve, and it is dry
Dry process temperature is relatively low, it is to avoid high temperature to the breakoff phenomenon of heat-sensitive substance, remain to greatest extent product nutritional ingredient and
Color, substantially increases value-added content of product；
（5）The equipment that the utility model is provided can carry out continuous drying operation, it is to avoid hothouse needs after drying
Cooling, reheats the problem of caused energy waste；
（6）The equipment that the utility model is provided is provided with automatic temperature-controlled blower fan and adds in the self-produced superheat steam drying system of normal pressure
Hot cell, automatic temperature-controlled radio frequency source heating unit is provided with negative pressure drying system temperature control system, this can precisely adjust and control
System dries indoor temperature, improves capacity usage ratio, while be provided with weighing sensor, can real-time monitoring dry materials degree, can be with
The degree of drying of product is controlled well, it also avoid energy dissipation.
In sum, innovative point of the present utility model be with material in constant pressure and dry room self-produced superheated steam as drying
, dexterously be combined for constant pressure and dry and negative pressure drying by medium, and high efficiente callback make use of the latent heat in the self-produced superheated steam of normal pressure,
The moisture of removal phase homogenous quantities is realized, its energy consumption saves the energy-saving effect of 25-40%.The drying equipment that the utility model is provided
Rationally, normal pressure operational security is high for scientific structure design, low to equipment and materials requirement, dry time-consuming short, simple to operate, can be continuous
Property drying operation, efficiently solve the high energy consumption that existing dried material is present, time-consuming, the problem of high cost, is very suitable for
Large-scale promotion application in dry materials industry.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model normal pressure and negative pressure combined drying equipment.
In figure：1st, the self-produced superheat steam drying system of normal pressure, 2, negative pressure drying system, 3, steam conveying pipe, 4, insulation
Layer, 5, weight display, 6, the line of induction, the 7, second weight sensor, the 10, first temperature controller, 11, atmospheric-compartment drier, 12, the
One material tray frame, 13, blower fan, 14, heater, 15, deflector, the 16, first weight sensor, 17, thermocouple, 18, temperature
Collector, 19, temperature sense probe, 20, temperature indicator, 21, negative pressure drying room, 22, second material tray rack, 23, steam
Heat exchanger, 24, optic fibre detector, the 25, second temperature controller, 26, radio frequency source heater, 27, import system device, 28, steam condensation
Device, 29, vavuum pump, 30, adjustable pressure fan, 31, water collector.
Specific embodiment
Example below is used to further describe the utility model, but does not limit the utility model in any form.
Embodiment 1
As shown in figure 1, the normal pressure and negative pressure combined drying equipment of the self-produced superheated steam of utilization that the utility model is provided, bag
The self-produced superheat steam drying system 1 of normal pressure and negative pressure drying system 2 are included, the self-produced superheat steam drying system 1 of normal pressure and negative pressure are dry
Drying system 2 is connected by steam conveying pipe 3, to realize that the superheated steam in the self-produced superheat steam drying system 1 of normal pressure leads to
Cross steam conveying pipe 3 and be transported in negative pressure drying system 2 and its latent heat is recycled.
Wherein the self-produced superheat steam drying system 1 of normal pressure includes atmospheric-compartment drier 11, is arranged in atmospheric-compartment drier 11
First material tray rack 12, the automatic temperature-controlled blower fan heating unit that heat energy is provided for dry materials, weigh weight of material first
Weighing unit and the first temperature monitoring unit for temperature in real-time monitoring atmospheric-compartment drier 11.Its automatic temperature-controlled blower fan adds
Hot cell includes blower fan 13, heater 14, deflector 15, the first temperature controller 10 and the temperature sensor being arranged in front of heater
Thermocouple 17, its collar of heater 14 is in the outside of blower fan 13 or shrouds in the outside of blower fan 13, its heater 14, the first temperature control
Device 10, thermocouple 17 are electrically connected；Its blower fan 13, the temperature controller 10 of heater 14 and first can be arranged in atmospheric-compartment drier 11,
May also be arranged on outside atmospheric-compartment drier 11, its thermocouple 17 and deflector 15 are arranged in atmospheric-compartment drier 11.It first is weighed
Unit includes the first weight sensor 16, the line of induction 6 and weight display 5, and the first weight sensor 16 and weight display 5 are logical
Cross the line of induction 6 to be connected, the first weight sensor 16 is arranged on the lower section of first material tray rack 12.Its first temperature monitoring list
Unit includes temperature sense probe 19, Temperature sampler 18 and temperature indicator 20, temperature sense probe 19, the and of Temperature sampler 18
Temperature indicator 20 observes the temperature variations in atmospheric-compartment drier 11 by electrical connection for real-time detection.
Wherein negative pressure drying system 2 includes negative pressure drying room 21, the second material pallet being arranged in negative pressure drying room 21
Frame 22 and vapor heat exchanger 23, the automatic temperature-controlled radio frequency source heating unit that heat energy is provided for dry materials, to negative pressure drying room 21
The condensed steam collector unit of condensed water, weighing material in the interior vacuum unit for manufacturing subnormal ambient, collection negative pressure drying room 21
Second weighing unit of weight and the second temperature monitoring unit for temperature in real-time monitoring negative pressure drying room 21.Its steam
Heat exchanger 23 be shell and tube vapor heat exchanger, including multiple tubulations layer, each tubulation layer by several columns tube side-by-side constitute, its row
Tube layer is arranged alternately with the pallet layer on second material tray rack 22, so that vapor heat exchanger 23 dries the second thing with being more uniformly distributed
Material on material torr plate rail 22.Its automatic temperature-controlled radio frequency source heating unit is arranged on outside negative pressure drying room 21, mainly including radio frequency
Source heater 26, import system device 27, the second temperature controller 25 and optic fibre detector 24, one end of optic fibre detector 24 are arranged on negative
Pressure hothouse 21 is interior, the other end is electrically connected with the second temperature controller 25, and the second temperature controller 25 is electrically connected with radio frequency source heater 26, is penetrated
Frequency source heater 26 is connected with import system device 27, and the heat energy that import system device 27 is responsible for producing radio frequency source heater 26 is imported
To in negative pressure drying room 21；Its radio frequency source heater 26 is microwave applicator or infrared heater.Its vacuum unit is arranged on negative
Outside pressure hothouse 21, including vavuum pump 29 and steam condenser 28, the vavuum pump 29 is by steam condenser 28 and negative pressure drying
Room 21 is connected.Its condensed steam collector unit includes water collector 31 and the adjustable pressure fan 30 being connected with water collector 31, collection
Hydrophone 31 is connected with the port of export of vapor heat exchanger 23, when in use, using adjustable pressure fan 30 by vapor heat exchanger 23
The condensed water of generation is pumped into water collector 31, so as to complete the recovery of condensed water.Its second weighing unit includes the second weight
Sensor 7, the line of induction 6 and weight display 5, the second weight sensor 7 are connected with weight display 5 by the line of induction 6, the
Two weight sensors 7 are arranged on the lower section of second material tray rack 22；The weighing number of the first weighing unit and the second weighing unit
Shown according to by weight display 5.Its second temperature monitoring unit is identical with the part setting of the first Temperature-control Monitoring unit, together
The temperature variations that sample is used in real-time detection observation negative pressure drying room 21.
Wherein one end of steam conveying pipe 3 is connected with the atmospheric-compartment drier 11 of the self-produced superheat steam drying system 1 of normal pressure
Logical, the other end is connected with the vapor heat exchanger 23 in negative pressure drying system 2.
To avoid energy loss, the chamber body outer wall of atmospheric-compartment drier 11 and negative pressure drying room 21 is equipped with heat-insulation layer 4.
Refer to the method for negative pressure combined drying equipment dried material using the normal pressure for preparing：In the self-produced superheated steam of normal pressure
In drying system 1, the part moisture in dried material is because by thermosetting superheated steam, the superheated steam passes through steam pipeline
Road 3 enters in negative pressure drying room in 21 vapor heat exchanger 23, and superheated steam continues dry as thermal source in negative pressure drying system 1
Dry material；Specifically include following steps：
The automatic temperature-controlled blower fan heating unit in the self-produced superheat steam drying system 1 of normal pressure is opened, atmospheric-compartment drier 11 is treated
When reaching setting drying temperature, material to be dried is placed on the first material tray rack 12 of atmospheric-compartment drier 11, it is closed normal
Pressure hothouse 11, starts dried material, and the moisture in atmospheric-compartment drier 11 in material is heated vaporization formation often at a set temperature
Vapours is pressed through, under the detection of the first weighing unit, when dry materials are to predetermined weight, material is taken out, next group is put into
Material to be dried, and the material of taking-up is transferred on the second material tray rack 22 in the negative pressure drying room 21；It is same with this
When, it is adjustable in opening condensed steam collector unit when superheated steam and indoor temperature stabilization are formed in atmospheric-compartment drier 11
Pressure fan 30, self-produced superheated steam is introduced in negative pressure drying room 21 by steam conveying pipe 3 in its atmospheric-compartment drier 11
In interior vapor heat exchanger 23, the automatic temperature-controlled radio frequency source heating unit and vacuum unit in negative pressure drying system 2 are opened, set
Continue dried material at fixed temperature and vacuum, the condensed water formed in vapor heat exchanger 23 in drying process is drained into cold
In the water collector 31 of solidifying steam collector unit, under the detection of the second weighing unit, by dry dry materials to predetermined weight
It is required that when, take out dried material；Then the dried next batch materials of atmospheric-compartment drier 11 are transferred in negative pressure drying room 21
Second material tray rack 22 on proceed drying, so circulation can complete dry materials.
Above-described embodiment is the utility model preferably implementation method, but implementation method of the present utility model is not by described
The limitation of embodiment, it is other it is any without departing from the change made under Spirit Essence of the present utility model and principle, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, be included within protection domain of the present utility model.
Claims (8)
1. a kind of normal pressure using self-produced superheated steam and negative pressure combined drying equipment, it is characterised in that including the self-produced mistake of normal pressure
Vapours drying system and negative pressure drying system；
The self-produced superheat steam drying system of normal pressure includes atmospheric-compartment drier, the first thing being arranged in the constant pressure and dry room
Material torr plate rail, the automatic temperature-controlled blower fan heating unit that heat energy is provided for dry materials and weigh the first of weight of material and weigh list
Unit；
The negative pressure drying system includes negative pressure drying room, the second material tray rack being arranged in the negative pressure drying room and steaming
Vapour heat exchanger, the automatic temperature-controlled radio frequency source heating unit that heat energy is provided for dry materials, to manufacturing negative in the negative pressure drying room
The vacuum unit in pressure ring border, collect in the vapor heat exchanger condensed steam collector unit of condensed water and weigh weight of material
The second weighing unit；
Steaming in the atmospheric-compartment drier and negative pressure drying system of the self-produced superheat steam drying system of normal pressure in negative pressure drying room
Vapour heat exchanger is connected by steam conveying pipe, the port of export of the vapor heat exchanger and the condensed steam collector unit phase
Connection.
2. the normal pressure using self-produced superheated steam according to claim 1 and negative pressure combined drying equipment, it is characterised in that
The automatic temperature-controlled blower fan heating unit include blower fan, heater, be arranged in front of heater deflector, the first temperature controller and
The thermocouple of temperature sensor, the electrical connection of the heater, the first temperature controller and thermocouple；The thermocouple and deflector are arranged on
The inside of atmospheric-compartment drier.
3. the normal pressure using self-produced superheated steam according to claim 1 and negative pressure combined drying equipment, it is characterised in that
The automatic temperature-controlled radio frequency source heating unit includes radio frequency source heater, import system device, the second temperature controller and optic fibre detector,
One end of the optic fibre detector is arranged in the negative pressure drying room, the other end is electrically connected with second temperature controller, described
Second temperature controller is electrically connected with the radio frequency source heater, and the radio frequency source heater is connected with import system device；The radio frequency
Source heater is microwave applicator or infrared heater.
4. the normal pressure using self-produced superheated steam according to claim 1 and negative pressure combined drying equipment, it is characterised in that
The vacuum unit includes vavuum pump and steam condenser, and the vavuum pump passes through the steam condenser and the negative pressure drying
Room is connected.
5. the normal pressure using self-produced superheated steam according to claim 1 and negative pressure combined drying equipment, it is characterised in that
The condensed steam collector unit includes water collector and the adjustable pressure fan being connected with the water collector, and the water collector passes through
Pipeline is connected with the port of export of the vapor heat exchanger.
6. the normal pressure using self-produced superheated steam according to claim 1 and negative pressure combined drying equipment, it is characterised in that
First weighing unit and the second weighing unit include weight sensor, the line of induction and weight display.
7. the normal pressure using self-produced superheated steam according to claim 1 and negative pressure combined drying equipment, it is characterised in that
It is additionally provided with real-time monitoring hothouse in the self-produced superheat steam drying system of normal pressure and the negative pressure drying system
The temperature monitoring unit of temperature, the temperature monitoring unit includes temperature sense probe, Temperature sampler and temperature indicator.
8. the normal pressure of the self-produced superheated steam of utilization according to claim any one of 1-7 and negative pressure combined drying equipment, its
It is characterised by, the chamber body outer wall of the atmospheric-compartment drier and negative pressure drying room is equipped with heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621302451.1U CN206247744U (en) | 2016-11-30 | 2016-11-30 | Using the normal pressure and negative pressure combined drying equipment of self-produced superheated steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621302451.1U CN206247744U (en) | 2016-11-30 | 2016-11-30 | Using the normal pressure and negative pressure combined drying equipment of self-produced superheated steam |
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| Publication Number | Publication Date |
|---|---|
| CN206247744U true CN206247744U (en) | 2017-06-13 |
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ID=59004321
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621302451.1U Active CN206247744U (en) | 2016-11-30 | 2016-11-30 | Using the normal pressure and negative pressure combined drying equipment of self-produced superheated steam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107692275A (en) * | 2017-08-18 | 2018-02-16 | 天津科技大学 | Effectively improve the drying device and method of vitamin C retention rate in fruit-vegetable dried product |
-
2016
- 2016-11-30 CN CN201621302451.1U patent/CN206247744U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107692275A (en) * | 2017-08-18 | 2018-02-16 | 天津科技大学 | Effectively improve the drying device and method of vitamin C retention rate in fruit-vegetable dried product |
| CN107692275B (en) * | 2017-08-18 | 2020-05-01 | 天津科技大学 | Drying device and method for effectively improving retention rate of vitamin C in dried fruit and vegetable products |
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