CN207570009U - Liquid nitrogen cooling and dehumidifying device - Google Patents
Liquid nitrogen cooling and dehumidifying device Download PDFInfo
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- CN207570009U CN207570009U CN201721657253.1U CN201721657253U CN207570009U CN 207570009 U CN207570009 U CN 207570009U CN 201721657253 U CN201721657253 U CN 201721657253U CN 207570009 U CN207570009 U CN 207570009U
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Abstract
The utility model provides a kind of liquid nitrogen cooling and dehumidifying device, and including heat exchanger, heat exchanger includes：Multiple liquid nitrogen heat exchanger tubes are equipped with gap between two neighboring liquid nitrogen heat exchanger tube；Liquid collecting room, liquid collecting room connect with multiple liquid nitrogen heat exchanger tubes, and set on the bottom of multiple liquid nitrogen heat exchanger tubes；Liquid nitrogen inlet tube, liquid nitrogen inlet tube are connected with liquid collecting room.The compact in design of the utility model, simple in structure, no complex component；The heat-exchange temperature of the utility model is low, and air can be made to reach extremely low dew point, and effect on moisture extraction is good；The utility model further dilutes the vapor in dry air by the nitrogen generated after liquid nitrogen vaporization, more reduces vapor mixing ratio；The utility model can carry out temperature control to the dry air for sending room back to, to meet different condition demand.
Description
Technical field
The utility model is related to a kind of liquid nitrogen cooling and dehumidifying devices.
Background technology
There are vapor in air, and the temperature of air is higher, and the ability that it accommodates vapor is higher.For certain special
Equipment, need to work in dry environments, it is necessary to control the humidity of its working environment.At present, common dehumidifying technology master
Including：Cooling and dehumidifying, adsorption and dehumidification, absorption dehumidifying, compression dehumidifying, membrane method dehumidifying etc..Cooling and dehumidifying is with being less than by gas
The wall surface contact of the liquid of its dew-point temperature either solid dielectric makes moisture condensation stay in liquid or solid interfaces, from
And remove vapor therein.Adsorption and dehumidification refers to realize effect on moisture extraction with the steam in solid absorbent adsorbed gas, turn
Wheel dehumidifying be a kind of relatively common adsorption and dehumidification apparatus-form, but adsorption and dehumidification usually have adsorption capacity it is small, absorption
Agent regeneration difficulty or high energy consumption easily cause the deficiencies of secondary pollution part.Absorption dehumidifying refers to connect gas and hygroscopicity solution
It touches and carries out, reduce water vapour content therein to reach dehumidifying purpose, but the dehumidizer used at present often has such as viscosity
The difference problem such as high, volatile, corrosivity, regeneration temperature height causes its application limited.Compression dehumidifying is by gas compression to one
Fixed pressure makes it below saturated vapour pressure at this temperature, so as to make Water vapor condensation, is commonly available under high humidity
Low capacity gas dehumidification.The pressure that the compression dehumidification process needs is high, and energy consumption is big, have to device fabrication and application it is unfavorable it
Place.Membrane method dehumidifying usually selects hydrophilic organic high molecular layer, using the pressure differential of membrane tube both sides, makes hydrone envelope surface
It captures and penetrates organic film to the opposite side of film, so as to fulfill the dehumidifying to gas.But membrane method dehumidifying technique is to organic film
Performance and installation requirement are higher, while also tend to that there are the problems such as short life, intensity difference.
In industrial equipment application, cooling and dehumidifying is most commonly seen technology type.But existing refrigerated dehumidification is past
Toward being that refrigerant is recycled by compressor, the refrigerant of low temperature in evaporator evaporation endothermic, make the near dew point of air with
Lower vapor generates condensation, then sends dried air back to room.The dehumidification equipment of this cooling and dehumidifying mode is complicated,
Volume is big, of high cost.And since conventional refrigerant evaporating temperature can only reach -30~0 DEG C or so, the refrigeration of more low temperature
Agent needs huge and complicated system, so this cooling and dehumidifying mode can not meet the requirement of very high degree of dryness, it is most of all
It is used as normal domestic household electrical appliances.Liquid nitrogen dehumidifies, though the existing application in dehumidification process, often using after liquid nitrogen vaporization
Gas phase nitrogen dehumidify, and do not make full use of liquid phase nitrogen, carry out it come aqueous in dehumidifying space needed for replacing
Gas, such as the invention content in Chinese Patent Application No. ZL 200920038446.8 and ZL201420581285.8.
Utility model content
The technical problems to be solved in the utility model is the dehumidification equipment in order to overcome cooling and dehumidifying mode in the prior art
Complicated, the defects of volume is big, of high cost, provide a kind of liquid nitrogen cooling and dehumidifying device.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of liquid nitrogen cooling and dehumidifying device, feature are, including heat exchanger, the heat exchanger includes：
Multiple liquid nitrogen heat exchanger tubes are equipped with gap between the two neighboring liquid nitrogen heat exchanger tube；
Liquid collecting room, the liquid collecting room connect with multiple liquid nitrogen heat exchanger tubes, and set on multiple liquid nitrogen heat exchanger tubes
Bottom；
Liquid nitrogen inlet tube, the liquid nitrogen inlet tube are connected with the liquid collecting room.
In the technical program, by setting the simple structure of heat exchanger, that is, by multiple liquid nitrogen heat exchanger tubes
Low temperature liquid phase nitrogen cools down the air to be dried by its gap, and air to be dried is enable to reach extremely low dew
Point so as to remove the vapor in air to be dried, and reaches good effect on moisture extraction.
Preferably, the liquid nitrogen cooling and dehumidifying device further includes hothouse, be equipped at intervals on the hothouse air inlet and
Air outlet, the hothouse is interior to be equipped with accommodating cavity, and the air inlet and the air outlet are connected with the accommodating cavity, described to change
Hot device is located in the accommodating cavity.
Preferably, the liquid nitrogen cooling and dehumidifying device further includes air intake passage and air-out passage, the air intake passage and institute
Air-out passage is stated to be respectively positioned on outside the hothouse, the air intake passage is connected with the air inlet, the air-out passage with it is described
Air outlet connects.
Preferably, the heat exchanger further includes collection chamber, the collection chamber is connected with multiple liquid nitrogen heat exchanger tubes, and
Set on the top of multiple liquid nitrogen heat exchanger tubes, the collection chamber is equipped with nitrogen outlet, and the nitrogen outlet passes through nitrogen outlet
Pipe is connected with the air-out passage.
Preferably, gas heater and the first leaving air temp sensor are equipped in the air-out passage, the gas heating
Device is located at the air-out passage close to one end of the air outlet, and the first leaving air temp sensor is located at gas heating
Side of the device far from the air outlet.
Preferably, the side of the collection chamber is equipped with circuit air-valve, be equipped with air inlet air-valve in the air intake passage, it is described go out
Outlet air air-valve is additionally provided in wind channel, the outlet air air-valve is set on remote in the air-out passage and the nitrogen outlet pipe junction
Side from the first leaving air temp sensor is equipped with wind turbine, the wind turbine between the outlet air air-valve and the air outlet
Central axis overlapped with the central axis of the air-out passage.
In the technical program, by setting circuit air-valve, air inlet air-valve and outlet air air-valve, liquid nitrogen cooling and dehumidifying can be made
Device switches between dehumidifying working condition and defrost working condition, is removed so as to make liquid nitrogen cooling and dehumidifying device that can not only have
Wet function can also be completed to eliminate by heating the air flow channel of defrost when dehumidifying working condition, liquid nitrogen heat exchange pipe outer wall
The frosting generated in upper and other positions.
Preferably, the second leaving air temp sensor is additionally provided in the air-out passage, the second leaving air temp sensor
Set on the side of the outlet air air-valve far from the air outlet.
Preferably, being additionally provided with reducing pipe in the air-out passage, one end of the reducing pipe is interior with the air-out passage
Wall is tightly connected, the other end of the reducing pipe along the air-out passage central axial direction from radial direction to the air-out passage
Extension, and positioned at the air-out passage and the nitrogen outlet pipe junction.
In the technical program, Venturi effect is generated, that is, described in reducing pipe by the structure for setting reducing pipe
The end of the inner wall sealing connection of air-out passage can generate low pressure, and the nitrogen discharged in collection chamber is filled in low-pressure area and dry air
Divide and mix, the water vapour content in further diluent air sends room back to finally by air-out passage.
Preferably, the heat exchanger further includes liquid level sensor, the liquid level sensor is located therein a liquid nitrogen
Heat exchanger tube is close to one end of the collection chamber.
In the technical program, by setting liquid nitrogen level sensor, the height of liquid nitrogen level can be detected, so as to timely
Liquid nitrogen in liquid nitrogen heat exchanger tube is supplemented by liquid nitrogen inlet tube.
Preferably, the liquid nitrogen cooling and dehumidifying device further includes drainpipe, described drainpipe one end and the accommodating cavity
Bottom connects, and the other end is located at outside the hothouse, and the drainpipe is equipped with drain solenoid valve.
The positive effect of the utility model is：
1st, the compact in design of the utility model, simple in structure, no complex component；
2nd, the heat-exchange temperature of the utility model is low, and air can be made to reach extremely low dew point, and effect on moisture extraction is good；
3rd, the utility model further dilutes the vapor in dry air by the nitrogen generated after liquid nitrogen vaporization, more
Adding reduces vapor mixing ratio；
4th, the utility model can carry out temperature control to the dry air for sending room back to, to meet different condition demand.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of the liquid nitrogen cooling and dehumidifying device of one preferred embodiment of the utility model.
Fig. 2 is the structure diagram of the heat exchanger of the liquid nitrogen cooling and dehumidifying device of one preferred embodiment of the utility model.
When Fig. 3 is that the liquid nitrogen cooling and dehumidifying device of one preferred embodiment of the utility model is in dehumidifying working condition, air
The schematic diagram of flow direction.
When Fig. 4 is that the liquid nitrogen cooling and dehumidifying device of one preferred embodiment of the utility model is in defrost working condition, air
The schematic diagram of flow direction.
Reference sign
Hothouse 10
Air inlet 11
Air outlet 12
Side wall 13
Accommodating cavity 14
Insulating layer 15
Guide plate 16
Drip tray 17
Heat exchanger 20
Liquid nitrogen heat exchanger tube 21
Gap 211
Liquid level sensor 212
Liquid collecting room 22
Liquid nitrogen temperature sensor 221
Liquid nitrogen inlet tube 23
Liquid nitrogen solenoid valve 231
Collection chamber 24
Nitrogen outlet 241
Nitrogen outlet pipe 242
Circuit air-valve 243
Air intake passage 30
Enter the wind air-valve 31
Air-out passage 40
Gas heater 41
First leaving air temp sensor 42
Wind turbine 43
Reducing pipe 44
Outlet air air-valve 45
Second leaving air temp sensor 46
Drainpipe 50
Drain solenoid valve 51
Vertical direction H
Specific embodiment
Name preferred embodiment, and become apparent from completely illustrating the utility model with reference to attached drawing.
As depicted in figs. 1 and 2, the present embodiment provides a kind of liquid nitrogen cooling and dehumidifying device, including hothouse 10, heat exchanger
20th, air intake passage 30 and air-out passage 40.Air inlet 11 and air outlet 12 are equipped at intervals on hothouse 10, is equipped in hothouse 10
Accommodating cavity 14, air inlet 11 and air outlet 12 are connected with accommodating cavity 14, and heat exchanger 20 is located in accommodating cavity 14.In the present embodiment
In, the outside wall surface of hothouse 10 is covered with insulating layer 15, and air inlet 11 and air outlet 12 are respectively arranged on what hothouse 10 was oppositely arranged
On two side 13, and position of the position higher than the vertically H of air outlet 12 of the vertically H of air inlet 11.
Heat exchanger 20 includes：Multiple liquid nitrogen heat exchanger tubes 21, liquid collecting room 22, liquid nitrogen inlet tube 23 and collection chamber 24.Adjacent two
Gap 211 is equipped between a liquid nitrogen heat exchanger tube 21.Multiple liquid nitrogen heat exchanger tubes 21 are mutually parallel, and vertically H be set on it is dry
In dry room 10.The one end of liquid nitrogen inlet tube 23 far from liquid collecting room 22 is equipped with liquid nitrogen solenoid valve 231, and liquid nitrogen solenoid valve 231 is located at dry
Outside dry room 10.Liquid collecting room 22 connects with multiple liquid nitrogen heat exchanger tubes 21, and set on the bottom of multiple liquid nitrogen heat exchanger tubes 21.Liquid nitrogen into
Liquid pipe 23 is connected with liquid collecting room 22.Collection chamber 24 is connected with multiple liquid nitrogen heat exchanger tubes 21, and set on multiple liquid nitrogen heat exchanger tubes 21
Top, collection chamber 24 is equipped with nitrogen outlet 241, and nitrogen outlet 241 connected by nitrogen outlet pipe 242 with air-out passage 40.
In this way, the simple structure by setting heat exchanger 20, that is, pass through the low temperature liquid phase nitrogen pair in multiple liquid nitrogen heat exchanger tubes 21
It is cooled down by the air to be dried in its gap 211, air to be dried is enable to reach extremely low dew point, so as to remove
Vapor in air to be dried, and reach good effect on moisture extraction.
In the present embodiment, heat exchanger 20 further includes liquid nitrogen temperature sensor 221, liquid level sensor 212 and liquid nitrogen overflow
It manages (not indicated in figure).Liquid nitrogen temperature sensor 221 is set on the bottom of liquid collecting room 22.In this way, by the way that liquid nitrogen temperature is set to sense
Device 221, can detect whether liquid nitrogen has run out of.Liquid level sensor 212 is located therein a liquid nitrogen heat exchanger tube 21 close to collection
One end of gas chamber 24.In this way, by setting liquid nitrogen level sensor 212, the height of liquid nitrogen level can be detected, to lead in time
Cross the liquid nitrogen opened in the supplement liquid nitrogen of the liquid nitrogen solenoid valve 231 on liquid nitrogen inlet tube 23 heat exchanger tube 21.Liquid nitrogen overflow pipe is arranged on
On one of liquid nitrogen heat exchanger tube 21, and vertically H is between liquid nitrogen level sensor 212 and collection chamber 24, to work as
When liquid nitrogen in liquid nitrogen heat exchanger tube 21 is more than the height of target level, by excessive liquid nitrogen export liquid nitrogen heat exchanger tube 21.
Air intake passage 30 and air-out passage 40 are respectively positioned on outside hothouse 10, and air intake passage 30 is connected with air inlet 11, outlet air
Channel 40 is connected with air outlet 12.41 and first leaving air temp sensor 42 of gas heater, gas are equipped in air-out passage 40
Heater 41 is located at air-out passage 40 close to one end of air outlet 12, and the first leaving air temp sensor 42 is located at gas heater 41
Side far from air outlet 12.
The side of collection chamber 24 is equipped with circuit air-valve 243, is equipped in air intake passage 30 and enters the wind air-valve 31, in air-out passage 40
Outlet air air-valve 45 is additionally provided with, outlet air air-valve 45 is set on air-out passage 40 and the first outlet air separate in 242 junction of nitrogen outlet pipe
The side of temperature sensor 42 is equipped with wind turbine 43, the central axis of wind turbine 43 and outlet air between outlet air air-valve 45 and air outlet 12
The central axis of channel 40 overlaps.In this way, by setting circuit air-valve 243, air inlet air-valve 31 and outlet air air-valve 45, liquid can be made
Nitrogen cooling and dehumidifying device switches between dehumidifying working condition and defrost working condition, so as to make liquid nitrogen cooling and dehumidifying device not only
There can be dehumidification function, can also be completed to eliminate by heating the air flow channel of defrost when dehumidifying working condition, liquid nitrogen
The frosting generated on 21 outer wall of heat exchanger tube and in other positions.The second leaving air temp sensor 46 is additionally provided in air-out passage 40,
Second leaving air temp sensor 46 is set on side of the outlet air air-valve 45 far from air outlet 12.
In the present embodiment, reducing pipe 44, one end and the air-out passage 40 of reducing pipe 44 are additionally provided in air-out passage 40
Inner wall sealing connects, and the other end of reducing pipe 44 prolongs along the central axial direction of radial direction to the air-out passage 40 of air-out passage 40
It stretches, and positioned at air-out passage 40 and 242 junction of nitrogen outlet pipe.In this way, by the way that the structure of reducing pipe 44 is set to generate literary mound
In effect, that is, can generate low pressure in the end that connects of inner wall sealing of 44 air-out passage 40 of reducing pipe, be arranged in collection chamber 24
The nitrogen gone out is sufficiently mixed in low-pressure area and dry air, the water vapour content in further diluent air, finally by outlet air
Channel 40 sends room back to.
In the present embodiment, hothouse 10 includes guide plate 16, and guide plate 16 is located in accommodating cavity 14, and positioned at air inlet
Between 11 and air outlet 12, a part of outer peripheral edge of guide plate 16 is resisted against the inner wall of hothouse 10, another portion of guide plate 16
Opening is exceptionally formed between the inner wall of periphery and hothouse 10, liquid nitrogen heat exchanger tube 21 is arranged in guide plate 16.In this way, by setting
Guide plate 16 is put, air to be dried can be oriented to, the distance for causing air flow through heat exchanger tube lengthens, and reaches and preferably removes
Wet effect.
In the present embodiment, liquid nitrogen cooling and dehumidifying device further includes drainpipe 50,50 one end of drainpipe and accommodating cavity 14
Bottom connects, and the other end is located at outside hothouse 10, and drainpipe 50 is equipped with drain solenoid valve 51.Further, in accommodating cavity
14 bottom can be provided with drip tray 17, and drip tray 17 is connect with drainpipe 50, and the bottom plate of drip tray 17 is to 50 side of drainpipe
To inclination, so as to which preferably water is discharged from accommodating cavity 14.
Liquid nitrogen cooling and dehumidifying device includes two kinds of working conditions, and respectively dehumidify working condition and defrost working condition.
Liquid nitrogen cooling and dehumidifying device is when dehumidifying working condition, as shown in figure 3, air inlet air-valve 31 and outlet air air-valve 45 are beaten
It opens, and circuit air-valve 243 and drain solenoid valve 51 are closed, air flow channel to be dried is as shown by arrows in FIG..Liquid nitrogen solenoid valve
231 open and pour into liquid nitrogen into heat exchanger 20, until liquid nitrogen level sensor 212 detects that liquid nitrogen level reaches target level
Afterwards, liquid nitrogen solenoid valve 231 is closed.Start wind turbine 43 and gas heater 41, and by the second leaving air temp sensor 46 come anti-
Feedback is to adjust the power of gas heater 41, and central controller can set a target leaving air temp, when the second leaving air temp
When the leaving air temp that sensor 46 measures is less than the target leaving air temp of setting, then starting gas heater 41, difference is bigger,
Then 41 output power of gas heater is bigger.Under the draft effect of wind turbine 43, air to be dried is from air intake passage in room
30 enter in closed hothouse 10, by the guiding of guide plate 16, the extremely low liquid nitrogen heat exchanger tube 21 of transversal flow temperature, by water
Steam condensation is on liquid nitrogen heat exchanger tube 21.Meanwhile the liquid nitrogen in liquid nitrogen heat exchanger tube 21 absorbs the heat of vaporization in air, nitrogen converges
Collection is in collection chamber 24.Dried air flows through gas heater 41 and carries out heated for controlling temperature, passes through wind turbine 43 and reducing pipe
44, in 44 end of reducing pipe due to Venturi effect, generate low pressure, the nitrogen in collection chamber 24 is by low-pressure area and dry air
It is sufficiently mixed, the water vapour content in further diluent air, room is sent back to finally by air-out passage 40.
After the liquid nitrogen that liquid nitrogen temperature sensor 221 is detected in liquid nitrogen heat exchanger tube 21 runs out of, outside liquid nitrogen heat exchanger tube 21
Frost on wall also condenses to a certain extent, then needs defrost at this time.Liquid nitrogen cooling and dehumidifying device is such as schemed in defrost working condition
Shown in 4, enter the wind air-valve 31 and outlet air air-valve 45 is all closed, circuit air-valve 243 and drain solenoid valve 51 are opened, the air stream of defrost
Road is as shown by arrows in FIG..Full power starts wind turbine 43 and gas heater 41, under 43 draft of wind turbine effect, close drying room
Air in 10 is heated into gas heater 41 is crossed, and flows through wind turbine 43 and reducing pipe 44, and gas collection is flowed by nitrogen outlet pipe 242
Room 24, and flow through circuit air-valve 243 and return in closed hothouse 10, form a closed loop cycle.Air after heating is close
Liquid nitrogen heat exchanger tube 21 is heated in the hothouse 10 closed, so as to 21 outer wall of liquid nitrogen heat exchanger tube and other positions
Frost, the water generated after thawing fall into drip tray 17, and closed hothouse 10 is discharged by drainpipe 50.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Under the premise of the principle and essence without departing substantially from the utility model, many changes and modifications may be made,
But these change and modification each fall within the scope of protection of the utility model.
Claims (10)
1. a kind of liquid nitrogen cooling and dehumidifying device, which is characterized in that it includes heat exchanger, and the heat exchanger includes：
Multiple liquid nitrogen heat exchanger tubes are equipped with gap between the two neighboring liquid nitrogen heat exchanger tube；
Liquid collecting room, the liquid collecting room connect with multiple liquid nitrogen heat exchanger tubes, and set on the bottom of multiple liquid nitrogen heat exchanger tubes
Portion；
Liquid nitrogen inlet tube, the liquid nitrogen inlet tube are connected with the liquid collecting room.
2. liquid nitrogen cooling and dehumidifying device as described in claim 1, which is characterized in that the liquid nitrogen cooling and dehumidifying device further includes
Hothouse is equipped at intervals with air inlet and air outlet on the hothouse, is equipped with accommodating cavity in the hothouse, the air inlet and
The air outlet is connected with the accommodating cavity, and the heat exchanger is located in the accommodating cavity.
3. liquid nitrogen cooling and dehumidifying device as claimed in claim 2, which is characterized in that the liquid nitrogen cooling and dehumidifying device further includes
Air intake passage and air-out passage, the air intake passage and the air-out passage are respectively positioned on outside the hothouse, the air intake passage
It is connected with the air inlet, the air-out passage is connected with the air outlet.
4. liquid nitrogen cooling and dehumidifying device as claimed in claim 3, which is characterized in that the heat exchanger further includes collection chamber, institute
It states collection chamber to connect with multiple liquid nitrogen heat exchanger tubes, and set on the top of multiple liquid nitrogen heat exchanger tubes, the collection chamber
Equipped with nitrogen outlet, the nitrogen outlet is connected by nitrogen outlet pipe with the air-out passage.
5. liquid nitrogen cooling and dehumidifying device as claimed in claim 4, which is characterized in that gas is equipped in the air-out passage and is heated
Device and the first leaving air temp sensor, the gas heater are located at the air-out passage close to one end of the air outlet, institute
It states the first leaving air temp sensor and is located at side of the gas heater far from the air outlet.
6. liquid nitrogen cooling and dehumidifying device as claimed in claim 5, which is characterized in that the side of the collection chamber is equipped with circuit wind
Valve, the air intake passage is interior to be equipped with air inlet air-valve, outlet air air-valve is additionally provided in the air-out passage, the outlet air air-valve is set on institute
State air-out passage and the side far from the first leaving air temp sensor in the nitrogen outlet pipe junction, the outlet air wind
Wind turbine is equipped between valve and the air outlet, the central axis of the wind turbine is overlapped with the central axis of the air-out passage.
7. liquid nitrogen cooling and dehumidifying device as claimed in claim 6, which is characterized in that second is additionally provided in the air-out passage and is gone out
Air temperature sensor, the second leaving air temp sensor are set on the side of the outlet air air-valve far from the air outlet.
8. liquid nitrogen cooling and dehumidifying device as claimed in claim 6, which is characterized in that be additionally provided in the air-out passage tapered
Pipe, one end of the reducing pipe connect with the inner wall sealing of the air-out passage, and the other end of the reducing pipe is along the outlet air
The radial direction of channel extends to the central axial direction of the air-out passage, and positioned at the air-out passage and the nitrogen outlet pipe
Junction.
9. liquid nitrogen cooling and dehumidifying device as claimed in claim 4, which is characterized in that the heat exchanger further includes level sensing
Device, the liquid level sensor are located therein a liquid nitrogen heat exchanger tube close to one end of the collection chamber.
10. liquid nitrogen cooling and dehumidifying device as claimed in claim 2, which is characterized in that the liquid nitrogen cooling and dehumidifying device also wraps
Drainpipe is included, described drainpipe one end is connected with the bottom of the accommodating cavity, and the other end is located at outside the hothouse, and the row
Water pipe is equipped with drain solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721657253.1U CN207570009U (en) | 2017-12-01 | 2017-12-01 | Liquid nitrogen cooling and dehumidifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721657253.1U CN207570009U (en) | 2017-12-01 | 2017-12-01 | Liquid nitrogen cooling and dehumidifying device |
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| CN207570009U true CN207570009U (en) | 2018-07-03 |
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ID=62689783
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| CN201721657253.1U Active CN207570009U (en) | 2017-12-01 | 2017-12-01 | Liquid nitrogen cooling and dehumidifying device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940574A (en) * | 2017-12-01 | 2018-04-20 | 上海原能细胞生物低温设备有限公司 | Liquid nitrogen cooling and dehumidifying device |
| CN112325395A (en) * | 2020-10-23 | 2021-02-05 | 重庆阿泰可科技股份有限公司 | Air duct structure for manufacturing low dew point air |
| CN113154799A (en) * | 2021-03-09 | 2021-07-23 | 杭州杭氧低温液化设备有限公司 | Liquid oxygen jet evaporator of air separation equipment |
-
2017
- 2017-12-01 CN CN201721657253.1U patent/CN207570009U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940574A (en) * | 2017-12-01 | 2018-04-20 | 上海原能细胞生物低温设备有限公司 | Liquid nitrogen cooling and dehumidifying device |
| CN112325395A (en) * | 2020-10-23 | 2021-02-05 | 重庆阿泰可科技股份有限公司 | Air duct structure for manufacturing low dew point air |
| CN112325395B (en) * | 2020-10-23 | 2021-08-10 | 重庆阿泰可科技股份有限公司 | Air duct structure for manufacturing low dew point air |
| CN113154799A (en) * | 2021-03-09 | 2021-07-23 | 杭州杭氧低温液化设备有限公司 | Liquid oxygen jet evaporator of air separation equipment |
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