CN209623240U - A kind of Analysis of Heat Pump Drying System - Google Patents
A kind of Analysis of Heat Pump Drying System Download PDFInfo
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- CN209623240U CN209623240U CN201920123260.6U CN201920123260U CN209623240U CN 209623240 U CN209623240 U CN 209623240U CN 201920123260 U CN201920123260 U CN 201920123260U CN 209623240 U CN209623240 U CN 209623240U
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Abstract
The utility model proposes a kind of Analysis of Heat Pump Drying System comprising the heat pump refrigerating unit and drying unit being connected, heat pump refrigerating unit include compressor, auxiliary condenser, condenser, evaporator and the first valve；Condenser is connected with the outlet of compressor；Auxiliary condenser is connected with the outlet of compressor, and is in parallel with condenser；Evaporator is connected with the import of condenser, auxiliary condenser and compressor；First valve is at least used to control the flow of first medium between condenser, auxiliary condenser and evaporator；Drying unit includes hothouse, and hothouse is connected with condenser and evaporator；It can be realized and be similar to natural rapid draing, the consumption of the energy can be reduced when the indoor substance of drying is dried, have great importance for alleviating China's energy shortage situation.
Description
Technical field
The utility model relates to dry processing technique field more particularly to a kind of Analysis of Heat Pump Drying System.
Background technique
Traditional handicraft drying in China's mostly uses greatly the heating methods such as electric heating, coal burning and gas burning boiler, heating, drying Interior Space
Gas and material contained humidity is discharged to outdoor, while supplementing partially dried fresh air.This traditional heating mode is not only to atmosphere dirt
Dye, and energy waste, are unfavorable for the sustainable development of national economy.In addition, the high temperature and humidity air of existing dryer is big
Part is all directly to be drained by exhaust outlet, and being expelled directly out causes heat waste serious, lacks recycle heat utilization.Secondly, existing
Air supply mode in the drying space of some dryers is single, cannot switch over adjustment, to air supply mode so as to cause drying
Dry material, which will appear, has local location to dry problem not in place, how to realize that comprehensive 3d air delivery drying is in the industry
Technical staff's technical problem in the urgent need to address.
Dry processing needs to consume mass energy, and energy consumption will usually account for 80% or more of dry processing cost, because
This, research energy-saving drying technology and equipment has important practical usage.In general, improving drying temperature, transformation can be improved
Rate reduces drying cost, and still, to many heat sensitive materials, for agricultural product, excessively high drying temperature will affect product
Quality.Therefore, drying efficiency how is improved under lower drying temperature, reduces energy consumption for drying, and being that current agricultural product are dry adds
The main bugbear that work technology and equipment faces.
Vacuum drying, material is dried in direct-fired mode under vacuum conditions for use, due in vacuum environment
Under, the moisture of material, which can be evaporated at a lower temperature with higher rate, to be removed, and therefore, vacuum drying has drying quality
Well, the features such as rate of drying is fast is especially suitable for the dry processing of thermal sensitivity agricultural product or food.But China's vacuum is dry at present
Dry owner will be based on steam or radiant heating, and steam heats mostly using fire coal as heat source, and not only the thermal efficiency is low, and specific heat consumption is high,
And coal burning can generate larger pollution to environment, do not meet national environmental protection policy requirements, be very limited.Radiant heating
Mainly use infrared heating or microwave heating, the deficiencies of it is big that there are power consumptions, and material uneven heating is even.
In addition, phenomena such as being easy to appear mildew, agglomerate, causing when moisture content is excessively high in the food of some such as flour
Shelf-life shortens, and product quality is irregular, is not easy to the long-distance transportation and sale of finished product.To solve this problem, each face
Energy-saving and environment-friendly flour drying device is all constantly being sought by powder producer.
By various experiments, flour drying cannot take the mode of solarization, have producer to use outside flour delivery pipe at present
The mode of heat-conducting medium is installed, heat-conducting medium is provided with heater element.The technology has the drawback that: heat is transmitted by medium
It is transmitted in flour again to after outer wall, heating efficiency is low, and drying efficiency is low；And drying is not filled when heat-conducting medium temperature is low
Point, flour is easy to change rotten when heat-conducting medium temperature is high, and flour drying quality is poor, and drying quality is difficult to control；Equipment simultaneously
It is relative complex, occupied space is big；Usual heater element is electric heating, and drying cost is high, increases the burden of user, is unfavorable for the whole nation
It is widely applied.
Heat-pump-type or air energy formula are dry, by making low grade heat energy be converted into high-grade from low-temperature heat source draw heat
Thermal energy can obtain output thermal energy more more than input energy, output and input energy than being a kind of section usually up to 3:1 or more
The dry technology of energy effect highly significant.But by technical restriction, the heated-air drying of heat is provided by heat pump, hot blast temperature is generally all
No more than 60 degree, heat pump is primarily adapted for use in middle low temperature drying.Due to when indirect heating and drying temperature it is low, heat pump drying
Usually all there are problems that drying time length, low efficiency.The present invention will be dried in vacuo and heat pump drying technology blends, and creates
A kind of heat pump drier of vacuum type band revolution agitating function, for the granulated solid agricultural product of various moisture content and other heat
Quick property dry materials, drying quality is good, rate of drying is fast to reach, while significant energy-efficient purpose again.
Currently, Analysis of Heat Pump Drying System can be divided into closed system, semi-open type system, open system by structure, wherein closed type hot
Pump drying system can effectively recycle the condensation heat in dry waste gas because of it, and energy utilization efficiency with higher.
But for enclosed Analysis of Heat Pump Drying System, the air circulation process carried out, what is taken is successively by evaporator
With the structure type of condenser, the degree of regulation of initial stage heating rate and latter temperature is limited.The temperature of hothouse therein
It is easy to rise, so that enclosed Analysis of Heat Pump Drying System needs intermittent heat extraction, and in summer, outdoor high temperature, so that closing
The condensing condition of formula Analysis of Heat Pump Drying System is deteriorated, and the efficiency of system reduces.It can be seen that traditional enclosed Analysis of Heat Pump Drying System is deposited
In certain limitation, the raising of the control precision and system effectiveness to temperature is limited, enclosed Analysis of Heat Pump Drying System is caused
Drying quality reduces and the increase of energy consumption.
Therefore, dry initial stage can be effectively lifted at there is an urgent need to develop a kind of enclosed Analysis of Heat Pump Drying System out at present
Stage dry indoor temperature increase rate, and the heat of hothouse input can be adjusted in real time, so that optimizing drying system exists
The operating condition in heat extraction stage improves the whole efficiency of energy utilization of drying system.
In addition, heat pump itself is a kind of energy-efficient energy conversion device, it can be by the heat energy transfer of low-temperature heat source to height
Temperature-heat-source.Heat pump drying has energy-saving and environment-friendly advantage, can effectively improve resource utilization, reduces greenhouse effects bring ozone
Damage layer needs material to provide dry source for most agricultural product with other.Therefore it provides Analysis of Heat Pump Drying System optimization side
Case is the key that guarantee that its is energy-efficient.However, it is less that heat pump system is currently used for dry research.
For the status of current technology, it is necessary to propose a kind of new Analysis of Heat Pump Drying System.
Utility model content
The purpose of this utility model is that proposing a kind of new Analysis of Heat Pump Drying System, it is intended to establish a kind of energy-efficient heat
Pump drying system, the Analysis of Heat Pump Drying System of the utility model are of great significance for alleviating China's energy shortage situation.
To realize the purpose of this utility model, the utility model proposes a kind of Analysis of Heat Pump Drying System, the heat pump drying
System includes: the heat pump refrigerating unit and drying unit being connected；
The heat pump refrigerating unit includes:
Compressor；
Condenser is connected with the outlet of the compressor；
Auxiliary condenser is connected with the outlet of the compressor, and is in parallel with the condenser；
Evaporator is connected with the import of the condenser, the auxiliary condenser and the compressor；
First valve, at least for controlling first Jie between the condenser, the auxiliary condenser and the evaporator
The flow of matter；
The drying unit includes hothouse, and the hothouse is connected with the condenser and the evaporator；
In the heat pump refrigerating unit, first medium by the compressor separately flow into the in parallel condenser and
The auxiliary condenser, the first medium flowed out from the condenser and the auxiliary condenser flows into the evaporator, from institute
The first medium for stating evaporator outflow flows into the compressor to constitute circulation loop；
In the drying unit, second medium followed by the evaporator, the condenser and the hothouse, and
And the medium flowed out from the hothouse flows into the evaporator to constitute circulation loop.
Analysis of Heat Pump Drying System as described above, wherein the condenser and the auxiliary condenser pass through the first branch
It is connected with the evaporator, first valve is set in the first branch.
Analysis of Heat Pump Drying System as described above, wherein water lines are set out on the evaporator, the outlet pipeline is equipped with
Control valve.
Analysis of Heat Pump Drying System as described above, wherein the pipeline that the condenser is connected with the hothouse is equipped with
Blower, the blower are connected with motor.
Analysis of Heat Pump Drying System as described above, wherein the pipeline that the condenser is connected with the compressor is equipped with
Second valve.
Analysis of Heat Pump Drying System as described above, wherein on the pipeline that the auxiliary condenser is connected with the compressor
Equipped with third valve.
Analysis of Heat Pump Drying System as described above, wherein first valve, second valve and the third valve are equal
For heating power expansion valve.
Analysis of Heat Pump Drying System as described above, wherein the auxiliary condenser is open type auxiliary condenser.
Analysis of Heat Pump Drying System as described above, wherein the auxiliary condenser is semi-enclosed auxiliary condenser.
Analysis of Heat Pump Drying System as described above, wherein the auxiliary condenser is closed auxiliary condenser.
The Analysis of Heat Pump Drying System of the utility model is based on auxiliary condenser, can be realized and is similar to natural rapid draing,
Guarantee the energy-efficient of product quantity and quality, the energy can be reduced when the indoor substance of drying is dried and disappeared
Consumption, therefore, the Analysis of Heat Pump Drying System of the utility model has great importance for alleviating China's energy shortage situation.
Detailed description of the invention
It, below will be to embodiment or existing in order to illustrate more clearly of the utility model embodiment or existing technical solution
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only this reality
With some embodiments of novel middle record, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of the Analysis of Heat Pump Drying System of the utility model；
Fig. 2 is the schematic diagram of another embodiment of the Analysis of Heat Pump Drying System of the utility model；
Fig. 3 is the schematic diagram of another embodiment of the Analysis of Heat Pump Drying System of the utility model.
In the accompanying drawings, identical component uses identical appended drawing reference.Attached drawing is not according to actual ratio.
1- compressor；2- auxiliary condenser；
3- condenser；4- evaporator；
5- hothouse；The first valve of 6-；
The second valve of 7-；8- third valve；
The first access of 9-；10- second branch；
11- third branch；The 12- first branch；
13- alternate path；14- third path；
15- fourth passage；16- fifth passage；
The 6th access of 17-；The 7th access of 18-；
19- pipe type fan；20- motor；
21- outlet pipeline；22- control valve.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below in conjunction with specific embodiment and phase
The technical solution of the utility model is clearly and completely described in the attached drawing answered.Obviously, described embodiment is only this reality
With novel a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work belongs to the model of the utility model protection
It encloses.
Fig. 1 to Fig. 3 is respectively the heat pump drying system of the schematic diagram of the Analysis of Heat Pump Drying System of the utility model, the utility model
The schematic diagram of another embodiment of the Analysis of Heat Pump Drying System of the schematic diagram and the utility model of another embodiment of system, now in conjunction with
The Analysis of Heat Pump Drying System of the utility model is described in detail in Fig. 1 to Fig. 3, so that the utility model understands.
In addition, it should be noted that ground is, in the present invention, the terms such as " first ", " second ", " third " and " the 4th "
It is only used for indicating the sequence of component, is not to be defined to component, such as the first pump, the second pump, third pump and the 4th
Pump is to indicate four pumps, here, " first ", " second ", " third " and " 4th " is only to each pumping section in four pumps
Part distinguishes, not to the limitation of pump.
It is described in detail now in conjunction with Analysis of Heat Pump Drying System of the Fig. 1 to the utility model, as shown in Figure 1, this is practical new
The Analysis of Heat Pump Drying System of type includes the heat pump refrigerating unit and drying unit being connected, wherein heat pump refrigerating unit includes compression
Machine 1, auxiliary condenser 2, condenser 3, evaporator 4 and the first valve 6.Condenser 3 and the outlet of compressor 1 (are i.e. pressed in Fig. 1
The interface in 3 left side of condenser in the interface namely Fig. 1 that contracting machine 1 is directly connected to condenser 3) it is connected；Auxiliary condenser 2 with
The outlet of compressor 1 is connected, and is in parallel with condenser 3；Evaporator 4 and condenser 3, auxiliary condenser 2 and compressor 1
Import be connected；First valve 6 is at least for controlling first medium between condenser 3, auxiliary condenser 2 and evaporator 4
Flow.Drying unit includes hothouse 5, and hothouse 5 is connected with condenser 3 and evaporator 4.
As illustrated by the arrows in fig. 1, in heat pump refrigerating unit, first medium (such as heat pump fluid) is divided by compressor 1
Condenser 3 and auxiliary condenser 2 in parallel are not flowed into, and the first medium flowed out from condenser 3 and auxiliary condenser 2 flows into evaporation
Device 4, the first medium flowed out from evaporator 4 flow into compressor 1 to constitute circulation loop；
In the drying unit, second medium (such as dried medium) is followed by evaporator 4, condenser 3 and hothouse
5, and the medium flowed out from hothouse 5 flows into evaporator 4 to constitute circulation loop.
The Analysis of Heat Pump Drying System of the utility model can guarantee energy-efficient.Heat pump system is used for dry research at present
It is less, and the present embodiment is based on auxiliary condenser, proposes that one kind is similar to natural rapid draing, guarantees product quantity and quality
Energy-efficient Analysis of Heat Pump Drying System.Since the present embodiment establishes a kind of energy-efficient Analysis of Heat Pump Drying System, for slow
Solution China's energy shortage situation is of great significance.
In one embodiment, auxiliary condenser 2 is connected by the first branch 12 with evaporator 4, and condenser 3 is same
It is connected by the first branch 12 with evaporator 4.
Specifically, in one embodiment, auxiliary condenser 2 is connected by alternate path 13 with subsequent evaporator 4 first
And be connected to, condenser 3 is connected and is connected to subsequent evaporator 4 by third path 14 first, then alternate path 13 and the
Three-way 14 converges to the first branch 12, passes through the first branch 12 for alternate path 13 and third path 14 and evaporation to realize
Device 4 is connected.
Further, the first branch 12 is equipped with the first valve 6, controls the first branch by the first valve 6 to realize
12 on-off and the flow that medium can be adjusted.
In a preferred embodiment, the first valve 6 is heating power expansion valve, so that realize can be by being gone out by evaporator
The degree of superheat of mouth gaseous refrigerant controls expansion valve opening, to realize the flow of adjustment cooling medium, such as passes through temperature sensing package
The variation for experiencing evaporator outlet refrigerant temperature carrys out adjusting refrigerant flow rate.
In one embodiment, auxiliary condenser 2 is open type auxiliary condenser.
In another embodiment, auxiliary condenser 2 is semi-enclosed auxiliary condenser.
In another embodiment, auxiliary condenser 2 is closed auxiliary condenser.
Further, the pipeline that condenser 3 is connected with compressor 1 is equipped with the second valve 7, in a specific embodiment
In, the second valve 7 is set in second branch 10, specifically, compressor 1 first by the first access 9 it is external with condenser 3 and
Auxiliary condenser 2 is connected, and the first access 9 branches out two second branchs 10 and third branch 11 in parallel, passes through the second valve
Door 7 is to realize the flow for passing through the on-off of control second branch 10 and capable of adjusting medium.
In a preferred embodiment, the second valve 7 is heating power expansion valve, can be by passing through evaporator outlet with realization
The degree of superheat of gaseous refrigerant controls expansion valve opening, to realize the flow of adjustment cooling medium, such as passes through temperature sensing package sense
Carried out adjusting refrigerant flow rate by the variation of evaporator outlet refrigerant temperature.
Further, in the Analysis of Heat Pump Drying System of the utility model, wherein auxiliary condenser 2 is connected with compressor 1
Pipeline be equipped with third valve 8, specifically, compressor 1 first by the first access 9 it is external with condenser 3 and assist cold
Condenser 2 is connected, and the first access 9 branches out two second branchs 10 and third branch 11 in parallel, and the setting of third valve 8 is the
On three branches 11, the on-off by control third branch 11 is realized by third valve 8 and the flow of medium can be adjusted.
In a preferred embodiment, third valve 8 is heating power expansion valve, can be by passing through evaporator outlet with realization
The degree of superheat of gaseous refrigerant controls expansion valve opening, to realize the flow of adjustment cooling medium, such as passes through temperature sensing package sense
Carried out adjusting refrigerant flow rate by the variation of evaporator outlet refrigerant temperature.
Further, as shown in Fig. 2, the pipeline that condenser 3 is connected with hothouse 5 is equipped with pipe type fan 19, institute
It states pipe type fan 19 to connect with motor 20, motor 20 drives pipe type fan 19 to run, to be conducive to dried medium
Circulation in circulation loop further increases dry efficiency.
Further, as shown in figure 3, setting out water lines 21 on evaporator 4, the outlet pipeline 21 is equipped with control valve
22, be conducive to by the opening and closing that control valve 22 controls outlet pipeline 21 in addition, outlet pipeline is arranged on evaporator 4
Moisture in dried medium in cyclic process containing water is removed.
It is described in detail in conjunction with Analysis of Heat Pump Drying System of the Fig. 1 to Fig. 3 to a specific embodiment of the utility model, such as
Described in Fig. 1, in this specific embodiment, Analysis of Heat Pump Drying System includes compressor 1, auxiliary condenser 2, condenser 3, evaporator 4
And hothouse 5, wherein compressor 1 is external to be connected with condenser 3 and auxiliary condenser 2 by the first access 9 first,
First access 9 branches out two second branchs 10 and third branch 11 in parallel, and second branch 10 is equipped with the second valve 7, the
Three branches 11 are equipped with third valve 8, and compressor 1 is by second branch 10 and third branch 11 is realized respectively and auxiliary condenser
2 are connected to condenser 3.Auxiliary condenser 2 is connected and is connected to subsequent evaporator 4 by alternate path 13 first, is condensed
Device 3 is connected and is connected to subsequent evaporator 4 by third path 14 first, and then alternate path 13 and third path 14 converge
To the first branch 12, alternate path 13 and third path 14 are connected with evaporator 4 by the first branch 12 to realize.The
One branch 12 is equipped with the first valve 6.Evaporator 4 is connected by fourth passage 15 with compressor 1, to realize in compressor
1, the circulation loop of closure is formed between auxiliary condensation 2, condenser 3 and evaporator 4.
Also it is connected by fifth passage 16 between evaporator 4 and condenser 3, condenser 3 and hothouse 5 are logical by the 6th
Road 17 is connected, and hothouse 5 is connected by the 7th access 18, thus the shape between evaporator 4, condenser 3 and hothouse 5
At the circulation loop of closure.
In a preferred embodiment, for convenient for adjust condensation temperature, realize that energy-efficient Analysis of Heat Pump Drying System is done
Dry, the Analysis of Heat Pump Drying System of the utility model chooses the air circulation of closed auxiliary condenser.Certainly, in the utility model
In Analysis of Heat Pump Drying System, it can also be dried using open type, semi-enclosed auxiliary condenser, but both auxiliary condensers
It is affected by environment larger in practical applications, system effectiveness will be caused to be decreased obviously in the low area of environment temperature, and in humidity
Material when causing dry end is reached the water capacity of setting by excessively high environment；And closed auxiliary condenser can evade environment
Factor, it is therefore preferred to select this kind of auxiliary condenser.
In addition, the Analysis of Heat Pump Drying System of the utility model is made of heat pump refrigeration system circulation and drying cycles two parts.
Via the heat dissipation that the auxiliary condenser in heat pump refrigeration cycle generates, received by closed space, by the indoor farming of drying
Object is dry, achievees the purpose that energy-efficient drying.Waste heat in system is inhaled using cooling blower or air circulation heat exchange
It receives, to realize thermal balance in hothouse, to reach the energy saving system effect of optimization of heat pump drying.
Entire Analysis of Heat Pump Drying System is mainly made of two independent circulations, i.e. system of the heat pump fluid in heat pump system
Drying cycles (the edge of SAPMAC method (arrow direction along the middle and upper part Analysis of Heat Pump Drying System Fig. 1 of the utility model) and dried medium
The arrow direction of the middle and lower part Analysis of Heat Pump Drying System Fig. 1 of the utility model), the two cycle through condenser and connect with evaporator
Get up.The heat vaporization of working medium absorption dehydration medium inside evaporator is inhaled into compressor, and compressor is by this low pressure working fluid
Gas compression is sent into condenser at high temperature, high pressure gas, part, and condenser makes heat pump fluid be condensed into liquid, simultaneously as hot
Pump refrigeration cycle in heating capacity be greater than refrigerating capacity, therefore part high temperature and pressure heat pump fluid through receiver and cooling water heat exchange after,
Extra heat is discharged.And the heat that heat pump fluid condensation is released needs dried medium for heating, the heat pump work in evaporator
Matter absorption dehydration medium heat becomes saturation or superheated steam by gas-liquid mixture, while realizing the cooling to dried medium
Dehumidifying.Dried medium, which is left, to be formed the stream of hot air of high temperature and humidity after hothouse and crosses the evaporator of heat pump, and certain moisture is removed
The air for becoming low temperature and low humidity then passes through after condenser is heated to set temperature and enters following for hothouse completion dried medium
Ring.
The above description is only the embodiments of the present invention, is not intended to limit the utility model.For this field
For technical staff, various modifications and changes may be made to the present invention.All institutes within the spirit and principle of the utility model
Any modification, equivalent substitution, improvement and etc. of work, should be included within the scope of the claims of the utility model.
Claims (10)
1. a kind of Analysis of Heat Pump Drying System, which is characterized in that the Analysis of Heat Pump Drying System include the heat pump refrigerating unit that is connected and
Drying unit；
The heat pump refrigerating unit includes:
Compressor；
Condenser is connected with the outlet of the compressor；
Auxiliary condenser is connected with the outlet of the compressor, and is in parallel with the condenser；
Evaporator is connected with the import of the condenser, the auxiliary condenser and the compressor；
First valve, at least for controlling first medium between the condenser, the auxiliary condenser and the evaporator
Flow；
The drying unit includes hothouse, and the hothouse is connected with the condenser and the evaporator；
In the heat pump refrigerating unit, first medium separately flows into the in parallel condenser and described by the compressor
Auxiliary condenser, the first medium flowed out from the condenser and the auxiliary condenser flows into the evaporator, from the steaming
The first medium of hair device outflow flows into the compressor to constitute circulation loop；
In the drying unit, second medium followed by the evaporator, the condenser and the hothouse, and from
The medium of the hothouse outflow flows into the evaporator to constitute circulation loop.
2. Analysis of Heat Pump Drying System according to claim 1, which is characterized in that the condenser and the auxiliary condenser are equal
It is connected by the first branch with the evaporator, first valve is set in the first branch.
3. Analysis of Heat Pump Drying System according to claim 2, which is characterized in that water lines are set out on the evaporator, it is described
Outlet pipeline is equipped with control valve.
4. Analysis of Heat Pump Drying System according to claim 3, which is characterized in that the condenser is connected with the hothouse
Pipeline be equipped with blower, the blower is connected with motor.
5. Analysis of Heat Pump Drying System according to claim 2, which is characterized in that the condenser is connected with the compressor
Pipeline be equipped with the second valve.
6. Analysis of Heat Pump Drying System according to claim 5, which is characterized in that the auxiliary condenser and the compressor phase
The pipeline of connection is equipped with third valve.
7. Analysis of Heat Pump Drying System according to claim 6, which is characterized in that first valve, second valve and
The third valve is heating power expansion valve.
8. Analysis of Heat Pump Drying System according to any one of claim 1 to 7, which is characterized in that the auxiliary condenser is
Open type auxiliary condenser.
9. Analysis of Heat Pump Drying System according to any one of claim 1 to 7, which is characterized in that the auxiliary condenser is
Semi-enclosed auxiliary condenser.
10. Analysis of Heat Pump Drying System according to any one of claim 1 to 7, which is characterized in that the auxiliary condenser is
Closed auxiliary condenser.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076509A (en) * | 2019-12-25 | 2020-04-28 | 江门丽宫国际食品股份有限公司 | Dried orange peel drying method based on heat pump system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076509A (en) * | 2019-12-25 | 2020-04-28 | 江门丽宫国际食品股份有限公司 | Dried orange peel drying method based on heat pump system |
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