CN107940574A - Liquid nitrogen cooling and dehumidifying device - Google Patents
Liquid nitrogen cooling and dehumidifying device Download PDFInfo
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- CN107940574A CN107940574A CN201711250689.3A CN201711250689A CN107940574A CN 107940574 A CN107940574 A CN 107940574A CN 201711250689 A CN201711250689 A CN 201711250689A CN 107940574 A CN107940574 A CN 107940574A
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- air
- liquid nitrogen
- heat exchanger
- outlet
- dehumidifying device
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
- F24F2003/1446—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only by condensing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
Abstract
The present invention provides a kind of liquid nitrogen cooling and dehumidifying device, it includes heat exchanger, and 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 arranged 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 present invention, simple in structure, no complex component；The heat-exchange temperature of the present invention is low, air can be made to reach extremely low dew point, effect on moisture extraction is good；The present invention further dilutes the vapor in dry air by the nitrogen produced after liquid nitrogen vaporization, more reduces vapor mixing ratio；The present invention can carry out temperature control to the dry air for sending room back to, to meet different condition demand.
Description
Technical field
The present invention relates to a kind of liquid nitrogen cooling and dehumidifying device.
Background technology
There are vapor in air, the temperature of air is higher, and the ability that it accommodates vapor is higher.For some special
Equipment, it is necessary 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 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, turns
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
Touch and carry 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.It is by gas compression to one to compress dehumidifying
Fixed pressure, makes it below saturated vapour pressure at this temperature, so that 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 by film surface
Capture and pass through 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 circulated by compressor, the refrigerant of low temperature in evaporator evaporation endothermic, make the near dew point of air with
Lower vapor produces 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
Used as normal domestic household electrical appliances.Liquid nitrogen dehumidifies, though applied in dehumidification process, after often utilizing liquid nitrogen vaporization
Gas phase nitrogen dehumidify, and liquid phase nitrogen is not made full use of, carries out it come aqueous in dehumidifying space needed for replacing
Gas, such as the content of the invention in Chinese Patent Application No. ZL 200920038446.8 and ZL 201420581285.8.
The content of the invention
The technical problem to be solved in the present invention is in order to overcome the dehumidification equipment structure of cooling and dehumidifying mode in the prior art
A kind of complicated, the defects of volume is big, of high cost, there is provided liquid nitrogen cooling and dehumidifying device.
The present invention is to solve above-mentioned technical problem by following technical proposals：
A kind of liquid nitrogen cooling and dehumidifying device, its feature are 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 are arranged 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, air to be dried is reached extremely low dew
Point, so as to remove the vapor in air to be dried, and reaches good effect on moisture extraction.
It is preferred that the liquid nitrogen cooling and dehumidifying device further includes hothouse, be interval with 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.
It is preferred that 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.
It is preferred that the heat exchanger further includes collection chamber, the collection chamber is connected with multiple liquid nitrogen heat exchanger tubes, and
Arranged 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.
It is preferred that gas heater and the first leaving air temp sensor are equipped with 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 away from the air outlet.
It is preferred that the side of the collection chamber is equipped with circuit air-valve, be equipped with inlet air air-valve in the air intake passage, it is described go out
Outlet air air-valve is additionally provided with wind passage, the outlet air air-valve is arranged on remote in the air-out passage and the nitrogen outlet pipe junction
From the side of the first leaving air temp sensor, wind turbine, the wind turbine are equipped 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, inlet air air-valve and outlet air air-valve, liquid nitrogen cooling and dehumidifying can be made
Device switches between dehumidifying working status and defrost working status, is removed so that liquid nitrogen cooling and dehumidifying device can not only have
Wet function, can also be completed to eliminate when dehumidifying working status by heating the air flow channel of defrost, liquid nitrogen heat exchange pipe outer wall
The frosting produced in upper and other positions.
It is preferred that the second leaving air temp sensor is additionally provided with the air-out passage, the second leaving air temp sensor
Arranged on the side of the outlet air air-valve away from the air outlet.
It is preferred that 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, the structure by setting reducing pipe produces Venturi effect, that is, described in reducing pipe
The end of the inner wall sealing connection of air-out passage can produce 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, room is sent back to finally by air-out passage.
It is preferred that 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.
It is preferred that 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 present invention is：
1st, compact in design of the invention, simple in structure, no complex component；
2nd, heat-exchange temperature of the invention is low, air can be made to reach extremely low dew point, effect on moisture extraction is good；
3rd, the present invention further dilutes the vapor in dry air by the nitrogen produced after liquid nitrogen vaporization, more drops
Low vapor mixing ratio；
4th, the present invention can carry out temperature control to the dry air for sending room back to, to meet different condition demand.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of the liquid nitrogen cooling and dehumidifying device of a preferred embodiment of the present invention.
Fig. 2 is the structure diagram of the heat exchanger of the liquid nitrogen cooling and dehumidifying device of a preferred embodiment of the present invention.
When Fig. 3 is that the liquid nitrogen cooling and dehumidifying device of a preferred embodiment of the present invention is in dehumidifying working status, air flow direction
Schematic diagram.
When Fig. 4 is that the liquid nitrogen cooling and dehumidifying device of a preferred embodiment of the present invention is in defrost working status, air flow direction
Schematic diagram.
Description of reference numerals
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
Inlet air 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
Embodiment
Name preferred embodiment, and become apparent from intactly illustrating the present invention 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, it includes hothouse 10, heat exchanger
20th, air intake passage 30 and air-out passage 40.Air inlet 11 and air outlet 12 are interval with hothouse 10, is equipped with 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 arranged on it is dry
In dry room 10.The one end of liquid nitrogen inlet tube 23 away from liquid collecting room 22 is equipped with liquid nitrogen solenoid valve 231, and liquid nitrogen solenoid valve 231 is positioned at dry
Outside dry room 10.Liquid collecting room 22 connects with multiple liquid nitrogen heat exchanger tubes 21, and arranged 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 is arranged on multiple liquid nitrogen heat exchanger tubes 21
Top, collection chamber 24 is equipped with nitrogen outlet 241, and nitrogen outlet 241 is 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
Cooled down by the air to be dried in its gap 211, air to be dried is reached 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
Manage (not indicated in figure).Liquid nitrogen temperature sensor 221 is arranged on the bottom of liquid collecting room 22.In this way, by setting liquid nitrogen temperature 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 in the supplement liquid nitrogen of liquid nitrogen solenoid valve 231 heat exchanger tube 21 opened on liquid nitrogen inlet tube 23.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 exceedes 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
Passage 40 is connected with air outlet 12.41 and first leaving air temp sensor 42 of gas heater, gas are equipped with air-out passage 40
Heater 41 is located at air-out passage 40 and is located at gas heater 41 close to one end of air outlet 12, the first leaving air temp sensor 42
Side away from air outlet 12.
The side of collection chamber 24 is equipped with circuit air-valve 243, is equipped with inlet air air-valve 31 in air intake passage 30, in air-out passage 40
Outlet air air-valve 45 is additionally provided with, outlet air air-valve 45 is arranged on air-out passage 40 and remote first outlet air 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 passage 40 overlaps.In this way, by setting circuit air-valve 243, inlet air air-valve 31 and outlet air air-valve 45, liquid can be made
Nitrogen cooling and dehumidifying device switches between dehumidifying working status and defrost working status, so that liquid nitrogen cooling and dehumidifying device is not only
There can be dehumidification function, can also be completed to eliminate by heating the air flow channel of defrost when dehumidifying working status, liquid nitrogen
The frosting produced on 21 outer wall of heat exchanger tube and in other positions.The second leaving air temp sensor 46 is additionally provided with air-out passage 40,
Second leaving air temp sensor 46 is arranged on side of the outlet air air-valve 45 away 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 with 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
Stretch, and positioned at air-out passage 40 and 242 junction of nitrogen outlet pipe.In this way, by setting the structure of reducing pipe 44 to produce literary mound
In effect, that is, low pressure can be produced in the end that connects of inner wall sealing of 44 air-out passage 40 of reducing pipe, row 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
Passage 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 is located 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
Exceptionally guide plate 16 is arranged in formed with opening, liquid nitrogen heat exchanger tube 21 between the inner wall of periphery and hothouse 10.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 connected 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 statuses, and respectively dehumidify working status and defrost working status.
Liquid nitrogen cooling and dehumidifying device is when dehumidifying working status, as shown in figure 3, inlet air air-valve 31 and outlet air air-valve 45 are beaten
Open, 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 set, 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, produce 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 status
Shown in 4, inlet air air-valve 31 and outlet air air-valve 45 are all closed, and 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 into 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 produced after thawing fall into drip tray 17, and closed hothouse 10 is discharged by drainpipe 50.
Although the embodiment of the present invention is the foregoing described, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
On the premise of the principle of the present invention and essence, various changes or modifications can be made to these embodiments, but these changes and
Modification each falls within protection scope of the present invention.
Claims (10)
1. a kind of liquid nitrogen cooling and dehumidifying device, it is characterised 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 arranged 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 claimed in claim 1, it is characterised in that the liquid nitrogen cooling and dehumidifying device further includes
Hothouse, air inlet and air outlet are interval with the hothouse, are equipped with accommodating cavity in the hothouse, the air inlet with
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, it is characterised 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
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, it is characterised in that the heat exchanger further includes collection chamber, institute
Collection chamber is stated to connect with multiple liquid nitrogen heat exchanger tubes, and arranged 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, it is characterised in that gas is equipped with 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
State the first leaving air temp sensor and be located at side of the gas heater away from the air outlet.
6. liquid nitrogen cooling and dehumidifying device as claimed in claim 5, it is characterised in that the side of the collection chamber is equipped with circuit wind
Valve, the air intake passage is interior to be equipped with inlet air air-valve, outlet air air-valve is additionally provided with the air-out passage, the outlet air air-valve is arranged on institute
State air-out passage and the side away from the first leaving air temp sensor, the outlet air wind in the nitrogen outlet pipe junction
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, it is characterised in that second is additionally provided with the air-out passage and is gone out
Air temperature sensor, the second leaving air temp sensor are arranged on the side of the outlet air air-valve away from the air outlet.
8. liquid nitrogen cooling and dehumidifying device as claimed in claim 6, it is characterised in that be additionally provided with the air-out passage tapered
Pipe, one end of the reducing pipe is connected 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 passage 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, it is characterised 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, it is characterised 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 |
|---|---|---|---|
| CN201711250689.3A CN107940574A (en) | 2017-12-01 | 2017-12-01 | Liquid nitrogen cooling and dehumidifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711250689.3A CN107940574A (en) | 2017-12-01 | 2017-12-01 | Liquid nitrogen cooling and dehumidifying device |
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| CN107940574A true CN107940574A (en) | 2018-04-20 |
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| CN201711250689.3A Withdrawn CN107940574A (en) | 2017-12-01 | 2017-12-01 | Liquid nitrogen cooling and dehumidifying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686709A (en) * | 2018-12-13 | 2019-04-26 | 上海新储集成电路有限公司 | A kind of fast cooling device and method |
| CN112833629A (en) * | 2020-12-29 | 2021-05-25 | 安徽泽升科技有限公司 | Nuclear-magnetism pipe drying system |
| CN113719924A (en) * | 2021-09-15 | 2021-11-30 | 伊岛电器(宁波)有限公司 | Dehumidifier of high-efficient dehumidification |
| CN113719923A (en) * | 2021-09-15 | 2021-11-30 | 伊岛电器(宁波)有限公司 | Dehumidifier with fan for defrosting |
| CN113758079A (en) * | 2021-09-01 | 2021-12-07 | 广州韩秀科技有限公司 | Capillary liquid nitrogen pipeline iterative cycle water catching device and using method thereof |
| CN115751570A (en) * | 2022-12-05 | 2023-03-07 | 珠海格力电器股份有限公司 | Air purifier capable of dehumidifying and humidifying |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7306281A (en) * | 1972-05-05 | 1973-11-07 | ||
| CN201145497Y (en) * | 2007-12-24 | 2008-11-05 | 上海东富龙科技股份有限公司 | Tail gas heat exchanger of liquid nitrogen auxiliary refrigeration freezing device |
| CN201621793U (en) * | 2010-04-06 | 2010-11-03 | 栗钊 | Variable frequency refrigeration dehumidifier |
| CN201706848U (en) * | 2010-06-11 | 2011-01-12 | 上海东富龙科技股份有限公司 | Liquid nitrogen freeze dryer |
| CN201729046U (en) * | 2010-07-07 | 2011-02-02 | 岑显荣 | Liquid nitrogen air conditioner of motor vehicle |
| CN103033076A (en) * | 2012-12-12 | 2013-04-10 | 中国航天科技集团公司第六研究院第十一研究所 | High-pressure, large-flow, low-temperature liquid nitrogen/helium heat exchange device |
| CN202921152U (en) * | 2012-11-21 | 2013-05-08 | 深圳清华大学研究院 | Environmental testing machine and dehumidifying device thereof |
| CN206618163U (en) * | 2017-04-07 | 2017-11-07 | 江门东堡五金制品有限公司 | A kind of evaporative condenser with warm wind defroster |
| CN207570009U (en) * | 2017-12-01 | 2018-07-03 | 上海原能细胞生物低温设备有限公司 | Liquid nitrogen cooling and dehumidifying device |
-
2017
- 2017-12-01 CN CN201711250689.3A patent/CN107940574A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7306281A (en) * | 1972-05-05 | 1973-11-07 | ||
| CN201145497Y (en) * | 2007-12-24 | 2008-11-05 | 上海东富龙科技股份有限公司 | Tail gas heat exchanger of liquid nitrogen auxiliary refrigeration freezing device |
| CN201621793U (en) * | 2010-04-06 | 2010-11-03 | 栗钊 | Variable frequency refrigeration dehumidifier |
| CN201706848U (en) * | 2010-06-11 | 2011-01-12 | 上海东富龙科技股份有限公司 | Liquid nitrogen freeze dryer |
| CN201729046U (en) * | 2010-07-07 | 2011-02-02 | 岑显荣 | Liquid nitrogen air conditioner of motor vehicle |
| CN202921152U (en) * | 2012-11-21 | 2013-05-08 | 深圳清华大学研究院 | Environmental testing machine and dehumidifying device thereof |
| CN103033076A (en) * | 2012-12-12 | 2013-04-10 | 中国航天科技集团公司第六研究院第十一研究所 | High-pressure, large-flow, low-temperature liquid nitrogen/helium heat exchange device |
| CN206618163U (en) * | 2017-04-07 | 2017-11-07 | 江门东堡五金制品有限公司 | A kind of evaporative condenser with warm wind defroster |
| CN207570009U (en) * | 2017-12-01 | 2018-07-03 | 上海原能细胞生物低温设备有限公司 | Liquid nitrogen cooling and dehumidifying device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686709A (en) * | 2018-12-13 | 2019-04-26 | 上海新储集成电路有限公司 | A kind of fast cooling device and method |
| CN112833629A (en) * | 2020-12-29 | 2021-05-25 | 安徽泽升科技有限公司 | Nuclear-magnetism pipe drying system |
| CN113758079A (en) * | 2021-09-01 | 2021-12-07 | 广州韩秀科技有限公司 | Capillary liquid nitrogen pipeline iterative cycle water catching device and using method thereof |
| CN113719924A (en) * | 2021-09-15 | 2021-11-30 | 伊岛电器(宁波)有限公司 | Dehumidifier of high-efficient dehumidification |
| CN113719923A (en) * | 2021-09-15 | 2021-11-30 | 伊岛电器(宁波)有限公司 | Dehumidifier with fan for defrosting |
| CN115751570A (en) * | 2022-12-05 | 2023-03-07 | 珠海格力电器股份有限公司 | Air purifier capable of dehumidifying and humidifying |
| CN115751570B (en) * | 2022-12-05 | 2024-05-10 | 珠海格力电器股份有限公司 | Air purifier capable of dehumidifying and humidifying |
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