CN208366038U - Continuous displaced type dehumidifying drying equipment - Google Patents
Continuous displaced type dehumidifying drying equipment Download PDFInfo
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- CN208366038U CN208366038U CN201820676390.8U CN201820676390U CN208366038U CN 208366038 U CN208366038 U CN 208366038U CN 201820676390 U CN201820676390 U CN 201820676390U CN 208366038 U CN208366038 U CN 208366038U
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Abstract
The utility model discloses a kind of continuous displaced type dehumidifying drying equipment, including air heat exchanger, the first evaporator, the new blower set on the first evaporator air inlet, condenser, the condensation fan between condenser exhaust outlet and drying chamber hot run test entrance, the second evaporator and the exhaust blower at the second evaporator exhaust outlet, air heat exchanger has the first and second air duct, first air duct is equipped with the first air intake vent and the first air outlet, second air duct is equipped with the second air intake vent and the second air outlet, and the second air intake vent is matched with the outlet of the hot wet wind of drying chamber；The exhaust outlet of first evaporator is matched with the first air intake vent, and an air inlet of condenser is matched with the first air outlet, and another air inlet is matched with drying chamber return air inlet, and the air inlet of the second evaporator is matched with the second air outlet；The equipment utilization displacement dehumidification principle, hot dry air and the high temperature and humidity air in drying chamber are replaced, and are excluded high temperature and humidity air in time, are achieved the purpose that dried material.
Description
Technical field
The utility model relates to dryer technical fields, specifically provide a kind of continuous displaced type dehumidifying drying equipment.
Background technique
Currently, the drying technology that drying chamber uses mainly uses air-cooled heat pump drying technology.So-called air-cooled heat pump dries skill
Art is exactly to utilize heat pump principle, extracts external heat and uses for drying chamber.However in practical applications, above-mentioned air-cooled heat pump dries skill
Art is shown there is also there is some shortcomings: 1) efficiency of air-cooled heat pump drying technology depends entirely on outside climatic condition.
With the reduction of outdoor temperature, heating capacity can be lower and lower, especially under 0~5 DEG C of humid conditions, air-cooled heat pump
Frost can be very serious, needs frequent defrost, heating capacity attenuation amplitude is big at that time, and heating efficiency is at a fairly low.2) in humidity
When weather, the long operational time of air-cooled heat pump drying technology and it is not easy to dry.Drying chamber in the process of running, need in time take a breath,
To exclude the vapor in drying chamber, especially phase after the drying, surface of material can be seriously affected into the humid air in drying chamber
Water evaporation rate, thus make material be not easy drying and drying time can also extend.3) air-cooled heat pump drying technology is not suitable for
Depth dries demand.Material water ratio can only be down to 10% or so mostly currently with the drying chamber of heat pump dryer, if you need into
The drying of one step is then abnormal difficult.4) efficiency that dehumidifies to air-cooled heat pump drying technology is low.The highest of air-cooled heat pump drying technology dehumidifies
Efficiency is about 3.5, and comprehensive energy efficiency is only 2.5 or so.
In view of this, special propose the utility model.
Summary of the invention
In order to overcome drawbacks described above, the utility model provides a kind of continuous displaced type dehumidifying drying equipment, can be real
Now continuous displacement dehumidifying, and also have that whole-process high-efficiency, drying rate is fast, heat utilization rate is high, can carry out depth drying, is applicable in area
The advantages that domain range is wide, energy-saving effect is significant.
The utility model is to solve technical solution used by its technical problem: a kind of continuous displaced type dehumidifying drying
Equipment, be provided on drying chamber one enter for external dry hot-air hot run test entrance, one arranged for high temperature and humidity air in drying chamber
The outlet of hot wet wind and a return air inlet out, which includes air heat exchanger, fresh air
Machine, the first evaporator, condenser, condensation fan, the second evaporator and exhaust blower, wherein the air heat exchanger, which has, to be supplied
First air duct of Cryogenic air circulation and the second air duct for high temperature air circulation, are provided with the first inlet air on first air duct
Mouthful and the first air outlet, be provided with the second air intake vent and the second air outlet on second air duct, and second air intake vent is also
Cooperation corresponding with the hot wet wind outlet, to receive the high temperature and humidity air of the hot wet wind outlet discharge；The new blower
It is laid in the air inlet of first evaporator, outdoor fresh air is imported in first evaporator, and described first steams
The exhaust outlet cooperation also corresponding with first air intake vent for sending out device, the low temperature and low humidity air that first evaporator is discharged
It imports in first air intake vent；The condenser is laid between the air heat exchanger and the drying chamber, and described cold
The cooperation corresponding with first air outlet of one air inlet of condenser, it is empty with the medium temperature low humidity for receiving the first air duct discharge
Gas, another air inlet of condenser cooperation corresponding with the return air inlet, to receive the return air returned from the drying chamber；
The condensation fan is laid between the exhaust outlet of the condenser and the hot run test entrance, and the condenser is discharged
Hot dry air imports in the hot run test entrance；Second evaporator is laid in the second air outlet of the air heat exchanger
Place, and the air inlet of second evaporator cooperation also corresponding with second air outlet simultaneously, to receive second wind
The middle warm air of road discharge；The exhaust blower is laid at the exhaust outlet of second evaporator, by second evaporator
The Cryogenic air of discharge is discharged to outdoor.
It is additionally provided between the condensation fan and the hot run test entrance as a further improvement of the utility model,
One electric heater.
Being additionally provided with one between the new blower and the exhaust blower as a further improvement of the utility model, can
The partition that the new blower and exhaust blower are separated out completely, and one side ventilation valve is also equipped on the partition, and work as institute
When stating bypass air-valve opening, the Cryogenic air of the exhaust blower discharge can enter in the new blower.
First evaporator, the condenser and second evaporator as a further improvement of the utility model,
In be all respectively arranged with for refrigerant liquid/or refrigerant vapour circulation pipeline；
The continuous displaced type dehumidifying drying equipment further includes having compressor and condensation water- to-water heat exchanger, the exhaust of the compressor
Mouthful connect and be connected to pipeline one end of the condenser, the pipeline other end of the condenser also with the condensation water- to-water heat exchanger
Inlet connection and be connected to；Two bye-passes are drawn at the liquid outlet of the condensation water- to-water heat exchanger, wherein a branch pipe
Road is connected to pipeline one end of first evaporator, and another bye-pass is connected to the pipeline one of second evaporator
End, and the pipeline other end of the pipeline other end of first evaporator and second evaporator is further averaged and is not connected to
The air inlet of the compressor.
Solenoid valve and swollen is respectively separately installed on bye-pass described in each as a further improvement of the utility model,
Swollen valve.
As a further improvement of the utility model, in pipeline one end of the exhaust outlet of the compressor and the condenser
Between be additionally provided with a pre- cool condenser.
The beneficial effects of the utility model are: 1. the dehumidifying drying equipment can be realized continuous displacement dehumidifying, and whole high
Effect, drying rate is fast, and drying time can shorten 20% or so than existing air-cooled heat pump technology.2. the dehumidifying drying equipment can be right
Waste heat is sufficiently recycled, and heat utilization rate is high, extracts heat without from the external world.3. the dehumidifying drying equipment not climate condition
Limitation, suitable application region range is wide, can use in any area of temperature≤45 DEG C.4. being dried compared to existing air-cooled heat pump technology
For moisture content 10% or so, which can realize the depth drying of moisture content 5% or so afterwards.5. the dehumidifying drying is set
Standby dehumidifying drying efficiency (moisture removal/power consumption) is very high, and up to 4.8 or more, energy-saving effect is significant, than air-cooled heat pump technology
25% or more energy conservation (the dehumidifying drying efficiency of air-cooled heat pump technology only 3.5 or so).6. be different from existing air-cooled heat pump be only capable of into
Row closed cycle operating mode, the dehumidifying drying equipment can carry out closed cycle operating mode and open circulation work as needed
Arbitrary switch between mode, to meet more stoving process demands.7. the dehumidifying drying equipment is than existing air-cooled heat pump skill
Art more suitable for high water capacity continuous drying process requirement, wherein especially prominent in transition season and winter advantage.
Detailed description of the invention
Fig. 1 is the operation principle schematic diagram of continuous displaced type dehumidifying drying equipment described in the utility model.
In conjunction with attached drawing, make the following instructions:
1 --- drying chamber 10 --- hot run test entrance
11 --- hot wet wind outlet 12 --- return air inlets
20 --- air heat exchanger 21 --- new blowers
22 --- the first evaporator 23 --- condensers
24 --- condensation fan 25 --- second evaporators
26 --- exhaust blower 27 --- electric heaters
28 --- bypass air-valve 290 --- compressors
291 --- condensation water- to-water heat exchanger 292 --- pre- cool condensers
Specific embodiment
It is described in detail referring to preferred embodiment of the figure to the utility model.
It please refers to shown in attached drawing 1, it illustrates the work of continuous displaced type dehumidifying drying equipment described in the utility model originals
Manage schematic diagram.It is high for high temperature in drying chamber 1 for the external hot run test entrance 10, one for drying hot-air entrance that one is provided on drying chamber 1
The hot wet wind outlet 11 of humid air discharge and a return air inlet 12, the continuous displaced type dehumidifying drying equipment include free
Gas-heat exchanger 20, new blower 21, the first evaporator 22, condenser 23, condensation fan 24, the second evaporator 25 and exhaust blower
26, wherein the air heat exchanger 20 is with the first air duct circulated for Cryogenic air and for the second of high temperature air circulation
Air duct is provided with the first air intake vent and the first air outlet on first air duct, is provided with the second inlet air on second air duct
Mouth and the second air outlet, and second air intake vent also exports 11 corresponding cooperations with the hot wet wind, it is wet to receive the heat
The high temperature and humidity air of 11 discharge of wind outlet；The new blower 21 is laid in the air inlet of first evaporator 22, will
Outdoor fresh air imports in first evaporator 22, and the exhaust outlet of first evaporator 22 also with the first air intake vent phase
Corresponding matching, the low temperature and low humidity air that first evaporator 22 is discharged import in first air intake vent；The condensation
Device 23 is laid between the air heat exchanger 20 and the drying chamber 1, and an air inlet of the condenser 23 and described the
The corresponding cooperation of one air outlet, to receive the medium temperature low-humidity air of first air duct discharge, the condenser 23 it is another into
Air port cooperation corresponding with the return air inlet 12, to receive the return air returned from the drying chamber 1；The condensation fan 24 is laid
Between the exhaust outlet and the hot run test entrance 10 of the condenser 23, the hot dry air that the condenser 23 is discharged is led
Enter in the hot run test entrance 10；Second evaporator 25 is laid at the second air outlet of the air heat exchanger 20,
And the air inlet of second evaporator 25 cooperation also corresponding with second air outlet simultaneously, to receive second air duct
The middle warm air of discharge；The exhaust blower 26 is laid at the exhaust outlet of second evaporator 25, and described second is evaporated
The Cryogenic air that device 25 is discharged is discharged to outdoor.
In the present embodiment, it is preferred that be additionally provided with one between the condensation fan 24 and the hot run test entrance 10
Electric heater 27, the heating for drying chamber initial stage are heated.
In the present embodiment, it is preferred that one is additionally provided between the new blower 21 and the exhaust blower 26 to incite somebody to action
The new blower 21 and exhaust blower 26 separate the partition opened completely, and one side ventilation valve 28 is also equipped on the partition, and
When the bypass air-valve 28 is opened, the Cryogenic air that the exhaust blower 26 is discharged can enter in the new blower 21.It is described
Mainly there are two effects for bypass air-valve 28: 1. under cold climate conditions, the bypass air-valve 28 being opened a part, is allowed a small amount of
Air draft and outdoor fresh air mixing, be then sent into first evaporator 22 by the new blower 21 again, can prevent in this way because
Outdoor fresh air temperature is too low and temperature in drying chamber is caused to decline.And since the water capacity of above-mentioned mixing wind at this time is still very low,
So the effect of fresh air displacement dehumidifying can still guarantee.2. the bypass air-valve 28 can be beaten completely when situation needs
It opens, air draft is allowed to fully enter in new blower 21, thus enter circulating dehumidification in enclosed and dry mode.
In the present embodiment, it is preferred that in first evaporator 22, the condenser 23 and second evaporator 25
All it is respectively arranged with the pipeline for refrigerant liquid/or refrigerant vapour circulation；
The continuous displaced type dehumidifying drying equipment further includes having compressor 290 and condensation water- to-water heat exchanger 291 (for reducing system
The degree of supercooling of cryogen increases refrigerating capacity and moisture removal, to reach more energy-efficient purpose), the exhaust outlet of the compressor 290
It connect and is connected to pipeline one end of the condenser 23 by pipeline, the pipeline other end of the condenser 23 also passes through pipeline
It connect and is connected to the inlet of the condensation water- to-water heat exchanger 291；Two are drawn at the liquid outlet of the condensation water- to-water heat exchanger 291
Bye-pass, wherein a bye-pass is connected to pipeline one end of first evaporator 22, another bye-pass connects
Pass through pipeline one end of second evaporator 25, and the pipeline other end of first evaporator 22 and second steaming
The pipeline other end of hair device 25 further averages the air inlet for not being connected to the compressor 290.
It is further preferred that being respectively separately installed with solenoid valve and expansion valve on bye-pass described in each.
It is further preferred that also being set between the exhaust outlet of the compressor 290 and pipeline one end of the condenser 23
It is equipped with a pre- cool condenser 292, guarantees the stabilization of drying room temperature for excluding waste heat.
In addition, the invention also discloses the working principle of the continuous displaced type dehumidifying drying equipment, are as follows: this is practical
It is novel to utilize displacement dehumidification principle, i.e., by the hot dry air (about 60 DEG C of hot winds) after dehumidifying and heating and the high temperature in drying chamber 1
Highly humid air is replaced, and the high temperature and humidity air in drying chamber 1 is continuously excluded in time, to achieve the purpose that dried material.
In replacement process, the relative humidity of air can maintain lower or even very low state in drying chamber；Separately due to surface of material water
The concentration of molecule is significantly larger than the concentration of air water molecule in drying chamber, and the speed that surface of material hydrone is spread into air can pole
Fastly, while also greatly accelerate material internal water molecule toward surface of material migration velocity.In addition, hot dry air can also provide
To the latent heat of vaporization needed for moisture evaporation in drying chamber, realizes the maximization of heat utilization ratio, finally reach efficient flash baking object
The purpose of material.
In addition, the utility model additionally provides the workflow of the continuous displaced type dehumidifying drying equipment, specifically:
(1) dehumidifying drying process is continuously replaced:
Outdoor fresh air is sent by the new blower 21 into first evaporator 22, and fresh air is in first evaporator 22
It is cooled to dew-point temperature or less and removes large quantity of moisture, become low temperature and low humidity air, and low temperature and low humidity air is from described first
Enter in first air duct after evaporator 22 is discharged and through the first air intake vent；From the height of 11 discharge of hot wet wind outlet of drying chamber 1
Warm highly humid air enters in second air duct through second air intake vent；
The high temperature and humidity air in low temperature and low humidity air and second air duct in first air duct carries out heat exchange,
Realize that low temperature and low humidity air absorbs heat and becomes medium temperature low-humidity air, it is empty that high temperature and humidity air release heat becomes medium temperature high humidity
Gas；Wherein, medium temperature low-humidity air escapes and enter in the condenser 23 from the first air outlet, while medium temperature low-humidity air also exists
It is mixed in the condenser 23 with the return air returned in drying chamber 1, becomes hot dry air after absorption condensation heat together, heat
Dry air is sent into the hot run test entrance 10 after the condenser 23 discharge through the exhaust blower 26, and then enters drying chamber 1
It is interior；Medium temperature highly humid air escapes and enter in second evaporator 25 from the second air outlet, and medium temperature highly humid air is described
Heat is discharged by further cooling in two evaporators 25, becomes Cryogenic air, finally again by the exhaust blower 26 by Cryogenic air
It is expelled to outdoor.
(2) refrigerant circulation process:
The refrigerant vapour for the high temperature and pressure that the compressor 290 is discharged is cooled down in the condenser 23, is become
The refrigerant liquid of cryogenic high pressure；Refrigerant liquid is again through the condensation water- to-water heat exchanger 291 further cooling and the expansion
After valve reducing pressure by regulating flow, respectively enter in first evaporator 22 and second evaporator 25；Refrigerant liquid is described
In one evaporator 22 and second evaporator 25 after evaporation endothermic, become the refrigerant vapour of low-temp low-pressure, finally again by institute
The sucking of compressor 290 is stated, the circulation of refrigerant is completed.
It illustrates, in this patent, first evaporator 22 and second evaporator 25 are not necessarily together
When work, the working condition of two evaporators is determined by the difference of outdoor fresh air operating condition, can be divided into following four Working mould
Formula:
(a) summer mode: because outdoor fresh air enthalpy is high, refrigerant evaporates the heat of absorption in first evaporator 22
It is enough to maintain the stabilization of drying room temperature, thus under this operating mode, second evaporator 25 is not have to work.
(b) transition mode: in transition season, first evaporator 22 and second evaporator 25 are to need simultaneously
Work, wherein the heat that part of refrigerant evaporates absorption in first evaporator 22, which is used as, carries out outdoor fresh air
Cool-down dehumidification, another part refrigerant evaporate the heat of absorption for maintaining the steady of drying room temperature in second evaporator 25
It is fixed.
(c) it winter mode: because the enthalpy of outdoor fresh air, water capacity are very low, does not need to cool down to outdoor fresh air at this time
Dehumidifying, so first evaporator 22 does not have to work；At this point, all refrigerants evaporate suction in second evaporator 25
Heat carries out whole recuperations of heat to air draft.
(d) high-efficiency internal circulation mode: when equipment is in the operation of interior circulation pattern, first evaporator 22 and described the
Two evaporators 25 are simultaneously operable, at this point, first evaporator 22 is used as main evaporator, second evaporator 25 is made
For precooling evaporator use.At dehumidifying drying initial stage, the enthalpy of drying chamber return air is high, water capacity is big, evaporating temperature is higher, at this time only
First evaporator 22 is needed to work, refrigerant all flows through first evaporator 22；And in the dehumidifying drying middle and later periods,
Drying chamber return air enthalpy and water capacity are relatively low, need lower evaporating temperature and biggish disengagement area, and described first steams at this time
Hair device 22 and second evaporator 25 need to work at the same time, and more refrigerant flows through first evaporator 22, remaining system
Cryogen flows through second evaporator 25.
In conclusion compared to the prior art, continuous displaced type dehumidifying drying equipment described in the utility model have with
Lower advantage: 1. the dehumidifying drying equipment can be realized continuous displacement dehumidifying, and whole-process high-efficiency, and drying rate is fast, drying time ratio
Existing air-cooled heat pump technology can shorten 20% or so.2. the dehumidifying drying equipment can sufficiently recycle waste heat, thermal energy benefit
With rate height, heat is extracted without from the external world.3. climate condition does not limit the dehumidifying drying equipment, suitable application region range is wide, can
It is used in any area of temperature≤45 DEG C.4., should compared to moisture content after the drying of existing air-cooled heat pump technology 10% or so
Dehumidifying drying equipment can realize the depth drying of moisture content 5% or so.5. the dehumidifying drying efficiency (dehumidifying of the dehumidifying drying equipment
Amount/power consumption) it is very high, up to 4.8 or more, energy-saving effect is significant, than 25% or more air-cooled heat pump technical energy saving.6. being different from
Existing air-cooled heat pump only can be carried out closed cycle operating mode, which can carry out closed cycle work as needed
Arbitrary switch between mode and open circulation operating mode, to meet more stoving process demands.7. the dehumidifying drying is set
It is standby than existing air-cooled heat pump technology more suitable for the process requirement of high water capacity continuous drying, wherein excellent in transition season and winter
Gesture is especially prominent.
The above is only the preferred embodiment of the utility model, but is not intended to limit the utility model, and should refer to
It out, for those skilled in the art, without deviating from the technical principle of the utility model, can be with
Several improvements and modifications are made, these improvements and modifications also should be regarded as within the protection scope of the present utility model.
Claims (6)
1. a kind of continuous displaced type dehumidifying drying equipment, it is dry that the heat that one enters for external dry hot-air is provided on drying chamber (1)
The hot wet wind outlet (11) and a return air inlet (12) of wind entrance (10), one for the interior high temperature and humidity air discharge of drying chamber (1),
Be characterized in that: the continuous displaced type dehumidifying drying equipment includes air heat exchanger (20), new blower (21), the first evaporator
(22), condenser (23), condensation fan (24), the second evaporator (25) and exhaust blower (26), wherein the air heat exchanger
(20) the second air duct for having the first air duct circulate for Cryogenic air and circulating for high temperature air is arranged on first air duct
There are the first air intake vent and the first air outlet, the second air intake vent and the second air outlet, and described are provided on second air duct
The cooperation also corresponding with the hot wet wind outlet (11) of two air intake vents, it is high with the high temperature for receiving hot wet wind outlet (11) discharge
Humid air；The new blower (21) is laid in the air inlet of first evaporator (22), outdoor fresh air is imported described in
In first evaporator (22), and the cooperation also corresponding with first air intake vent of the exhaust outlet of first evaporator (22), with
The low temperature and low humidity air of first evaporator (22) discharge is imported in first air intake vent；The condenser (23) is laid
Between the air heat exchanger (20) and the drying chamber (1), and an air inlet and described first for the condenser (23)
The corresponding cooperation of air outlet, to receive the medium temperature low-humidity air of first air duct discharge, the condenser (23) it is another into
Air port cooperation corresponding with the return air inlet (12), to receive the return air returned from the drying chamber (1)；The condensation fan
(24) it is laid between the exhaust outlet of the condenser (23) and the hot run test entrance (10), the condenser (23) is arranged
Hot dry air out imports in the hot run test entrance (10)；Second evaporator (25) is laid in the air heat exchanger
(20) at the second air outlet, and the air inlet of second evaporator (25) is also corresponding with second air outlet simultaneously matches
It closes, to receive the middle warm air of the second air duct discharge；The exhaust blower (26) is laid in second evaporator (25)
At exhaust outlet, the Cryogenic air that second evaporator (25) is discharged is discharged to outdoor.
2. continuous displaced type dehumidifying drying equipment according to claim 1, it is characterised in that: in the condensation fan (24)
An electric heater (27) are additionally provided between the hot run test entrance (10).
3. continuous displaced type dehumidifying drying equipment according to claim 1, it is characterised in that: in the new blower (21) and
One is additionally provided between the exhaust blower (26) to separate the partition opened completely for the new blower (21) and exhaust blower (26),
And one side ventilation valve (28) are also equipped on the partition, and when the bypass air-valve (28) is opened, the exhaust blower
(26) Cryogenic air being discharged can enter in the new blower (21).
4. continuous displaced type dehumidifying drying equipment according to claim 1, it is characterised in that: first evaporator
(22), it is all respectively arranged in the condenser (23) and second evaporator (25) for refrigerant liquid/or refrigerant steaming
The logical pipeline of steam flow；
The continuous displaced type dehumidifying drying equipment further includes having compressor (290) and condensation water- to-water heat exchanger (291), the compressor
(290) exhaust outlet connect and is connected to pipeline one end of the condenser (23), the pipeline other end of the condenser (23)
Also it connect and is connected to the inlet of condensation water- to-water heat exchanger (291)；Draw at the liquid outlet of condensation water- to-water heat exchanger (291)
Two bye-passes out a, wherein bye-pass is connected to pipeline one end of first evaporator (22), described in another
Bye-pass is connected to pipeline one end of second evaporator (25), and the pipeline other end of first evaporator (22), with
And the pipeline other end of second evaporator (25) further averages the air inlet for not being connected to the compressor (290).
5. continuous displaced type dehumidifying drying equipment according to claim 4, it is characterised in that: bye-pass described in each
On be respectively separately installed with solenoid valve and expansion valve.
6. continuous displaced type dehumidifying drying equipment according to claim 4, it is characterised in that: in the compressor (290)
Exhaust outlet and the condenser (23) pipeline one end between be additionally provided with a pre- cool condenser (292).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820676390.8U CN208366038U (en) | 2018-05-08 | 2018-05-08 | Continuous displaced type dehumidifying drying equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820676390.8U CN208366038U (en) | 2018-05-08 | 2018-05-08 | Continuous displaced type dehumidifying drying equipment |
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| CN208366038U true CN208366038U (en) | 2019-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444278A (en) * | 2018-05-08 | 2018-08-24 | 苏州末尘节能科技有限公司 | Continuous displaced type dehumidifying drying equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444278A (en) * | 2018-05-08 | 2018-08-24 | 苏州末尘节能科技有限公司 | Continuous displaced type dehumidifying drying equipment |
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