CN109140866A - It is a kind of to use the vacuum precooling device for exerting gloomy pump - Google Patents
It is a kind of to use the vacuum precooling device for exerting gloomy pump Download PDFInfo
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- CN109140866A CN109140866A CN201810790617.6A CN201810790617A CN109140866A CN 109140866 A CN109140866 A CN 109140866A CN 201810790617 A CN201810790617 A CN 201810790617A CN 109140866 A CN109140866 A CN 109140866A
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- outlet
- gloomy pump
- connect
- import
- cooling
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- 238000001816 cooling Methods 0.000 claims abstract description 133
- 238000009434 installation Methods 0.000 claims abstract description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 230000008676 import Effects 0.000 claims description 76
- 239000003507 refrigerant Substances 0.000 claims description 34
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 235000019441 ethanol Nutrition 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 108091006146 Channels Proteins 0.000 description 20
- 239000003795 chemical substances by application Substances 0.000 description 20
- 102000010637 Aquaporins Human genes 0.000 description 13
- 108010063290 Aquaporins Proteins 0.000 description 13
- 239000012530 fluid Substances 0.000 description 10
- 239000011229 interlayer Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000005068 transpiration Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
Abstract
The vacuum precooling device for exerting gloomy pump is used the invention discloses a kind of, comprising: vacuum pre-cooling case；The cooling cylinder being connect with vacuum pre-cooling case；First connect with cooling cylinder exerts gloomy pump installation；Second connect with the evaporator in cooling cylinder exerts gloomy pump installation；The cooling heat exchanger that gloomy pump installation is connect is exerted with second；The first triple valve being connect with cooling cylinder；Gloomy pump installation and second, which is exerted, with first exerts the second triple valve that gloomy pump installation connect, water at low temperature in cooling cylinder is conveyed to first by the first triple valve respectively exerts gloomy pump installation and second and exerts gloomy pump installation, and a part of water at low temperature is discharged into outside environment by the second triple valve, another part water at low temperature is transmitted back in cooling cylinder.Of the invention first is exerted gloomy pump installation and second and exerts gloomy pump installation and can directly be driven using low grade heat energy, environmental protection and energy saving, and the simple movement-less part of structure, reduces the cost of initial outlay and operation and maintenance.
Description
Technical field
The present invention relates to vacuum pre-cooling technology fields, in particular to a kind of to use the vacuum precooling device for exerting gloomy pump.
Background technique
With the continuous improvement of living standards, requirement of the people to food quality is also higher and higher, and the one of food quality
A important indicator is exactly freshness, and the vacuum pre-cooling technology occurred in recent years is exactly a kind of method that can effectively keep food freshness.
Vacuum pre-cooling has fresh keeping time long, cooling time is exceedingly fast, to the original sense organ of food and product compared with other storage modes
Quality guarantee is held, and bacterium and microorganism can be inhibited or kill, and has " thin layer drying effect ", it is excellent can to extend Food Shelf-life etc.
Point.
But there are following two main problems for vacuum precooling machine used at present:
Structure is complicated for 1 vacuum precooling machine, assembles also relatively difficult, the higher cost of initial outlay and operation and maintenance.
2 vacuum precooling machines nearly all use steam compression type refrigerating mode, and when operation needs to consume a large amount of high-grade electricity
Energy or mechanical energy, and refrigerant used is environmentally hazardous HCFCs or HFCs substance, does not adapt to current energy-saving and emission-reduction
Growth requirement.
In view of these problems existing for current vacuum precooling machine, design usable low grade heat energy driving, it is cheap,
There is realistic meaning using environmental protection refrigerant and the relatively simple vacuum pre-cooling equipment of structure, it is gloomy thus to propose that a kind of use is exerted
The vacuum precooling device of pump.The vacuum pump and compressor of this vacuum precooling device are all substituted with exerting gloomy pump, therefore can be directly by low
Product heat-driven, and structure has greater advantage simply without moving component in terms of initial cost and operation and maintenance.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of using the vacuum precooling device for exerting gloomy pump, to overcome existing vacuum pre-
Structure is complicated for cold, refrigerant endangers environment, initial outlay and operation expense are high, and needs when vacuum precooling machine operation
The shortcomings that consuming a large amount of high-grade electric energies.
To achieve the above object, the vacuum precooling device for exerting gloomy pump is used the present invention provides a kind of, comprising: vacuum pre-cooling
Case；Cooling cylinder, gas feed are connect with the outlet of the vacuum pre-cooling case；First exerts gloomy pump installation, gas introduction tube
Import is connect with the gas vent of the cooling cylinder, this first exert gloomy pump installation gas eduction tube first outlet and exhaust outlet
Connection, the second outlet of first gas eduction tube for exerting gloomy pump installation connect with the import of the vacuum pre-cooling case, and this
One second outlet for exerting the gas eduction tube of gloomy pump installation is provided with a vacuum valve；Second exerts gloomy pump installation, gas introduction tube
Import connect with the outlet of the gilled tube of the evaporator in the cooling cylinder；Cooling heat exchanger, the import of cooling duct with
Described second exerts the outlet connection of the gas eduction tube of gloomy pump installation, the outlet of the cooling duct of the cooling heat exchanger and the steaming
The import connection of the gilled tube of device is sent out, and the import of the gilled tube of the evaporator is provided with a throttle mechanism；First triple valve,
Its import is connect with the low temperature water out of the cooling cylinder, and the first outlet of first triple valve and described first exerts gloomy pump installation
Water at low temperature water inlet pipe import connection, and the water at low temperature that the second outlet of first triple valve exerts gloomy pump installation with described second
The import of water inlet pipe connects；And second triple valve, the water at low temperature outlet pipe that import exerts gloomy pump installation with described first respectively
The outlet of the outlet water at low temperature outlet pipe of exerting gloomy pump installation with described second connect, the first outlet of second triple valve and row
Mouth of a river connection, the second outlet of second triple valve are connect with the low temperature water inlet of the cooling cylinder, and second triple valve
Second outlet is provided with a regulating valve.
It preferably, further include first filter in above-mentioned technical proposal, the import of the first filter and the condensation
The gas vent of case connects, and the import for exporting the gas introduction tube for exerting gloomy pump installation with described first of the first filter
Connection.
It preferably, further include the second filter in above-mentioned technical proposal, the import and the evaporation of second filter
The outlet of the gilled tube of device connects, and the outlet of second filter gas introduction tube of exerting gloomy pump installation with described second
Import connection.
It preferably, further include third filter in above-mentioned technical proposal, the import of the third filter passes through diversion pipe
It is connect with the low temperature water out of the cooling cylinder, and the outlet of the third filter and the import of first triple valve connect
It connects.
It preferably, further include storage room in above-mentioned technical proposal, the entrance of the storage room and the cooling heat exchanger
The outlet of cooling duct connects, and the outlet of the storage room is connect with the import of the gilled tube of the evaporator.
Preferably, in above-mentioned technical proposal, the throttle mechanism is throttle valve.
Preferably, in above-mentioned technical proposal, the refrigerant in the gilled tube of the evaporator is water, ammonia or ethyl alcohol.
Preferably, in above-mentioned technical proposal, the vacuum pre-cooling case and the cooling cylinder are provided with insulating layer.
Compared with prior art, the invention has the following beneficial effects:
1. of the invention first, which exerts gloomy pump installation, can replace conventional vacuum pump, to be vacuumized to vacuum pre-cooling case, the
Two, which exert gloomy pump installation, can replace conventional compressor, to drive the movement of evaporator inner refrigerant, keep low temperature in cooling cylinder
State, first, which exerts gloomy pump installation and second, is exerted gloomy pump installation and can directly be driven using low grade heat energy, environmental protection and energy saving, and is tied
The simple movement-less part of structure reduces the cost of initial outlay and operation and maintenance；It is evaporated from the food in vacuum pre-cooling case
Vapor enters cooling cylinder, and the vapor liquefaction that is condensed forms water at low temperature in cooling cylinder, the water at low temperature recoverable, into one
Step reduces energy consumption.
2. vacuum precooling device of the invention is avoided using working medium such as water, ammonia or the ethyl alcohol of environmental sound using harm
HCFCs the or HFCs class refrigerant of environment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to the present invention using the vacuum precooling device for exerting gloomy pump.
Fig. 2 is the structural schematic diagram according to the present invention for individually exerting gloomy pump.
Fig. 3 is according to the present invention first to exert gloomy pump installation or second exert the structural schematic diagram of gloomy pump installation.
Main appended drawing reference explanation:
1- vacuum pre-cooling case；2- connecting tube；3- cooling cylinder；4- first filter；5- first exerts gloomy pump installation；6- exhaust
Mouthful；7- vacuum valve；The second filter of 8-；9- second exerts gloomy pump installation；10- cooling heat exchanger；11- storage room；12- throttling machine
Structure；13- evaporator；14- third filter；The first triple valve of 15-；16- water at low temperature water inlet pipe；17- water at low temperature outlet pipe；18-
Second triple valve；19- regulating valve；20- diversion pipe；21- heat-carrying agent inlet tube；22- heat-carrying agent outlet；23- heat insulation layer；
24- base station body；The cold chamber heat exchanger of 25-；26- temperature-detecting device；The cold chamber of 27-；The porous interlayer of 28-；The hot chamber heat exchanger of 29-；30-
Hot chamber；31- heat-carrying agent channel；32- interface channel；33- exerts gloomy pump；34- low temperature aquaporin；35- keeps the temperature sleeve；36- gas
Ingress pipe；37- gas eduction tube；38- exerts gloomy pump group.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
Fig. 1 to Fig. 3 shows that the vacuum precooling device of gloomy pump is exerted in a kind of use according to the preferred embodiment of the present invention
Structural schematic diagram, the use exert gloomy pump vacuum precooling device include vacuum pre-cooling case 1, cooling cylinder 3, first exert gloomy pump installation 5,
Second exerts gloomy pump installation 9, cooling heat exchanger 10, the first triple valve 15 and the second triple valve 18.With reference to Fig. 1, vacuum pre-cooling case 1
For placing and handling food, the gas feed of cooling cylinder 3 is connect by connecting tube 2 with the outlet of vacuum pre-cooling case 1, and first exerts
Gloomy pump installation 5 is connect by gas introduction tube 36 with the gas vent of cooling cylinder 3, and vacuum pre-cooling case 1 exerts gloomy pump installation 5 by first
It constantly extracts air out, its internal pressure is made to insist on continuous reduction, since the boiling point of water declines with the reduction of atmospheric pressure, lead to food
Interior moisture constantly, rapidly evaporates, and keeps food cooled because moisture evaporates the heat for absorbing food, vacuum pre-cooling case 1
The vapor that interior air and food is evaporated can be flowed into cooling cylinder 3 by connecting tube 2, and vapor is in cooling cylinder 3
It is condensed into low temperature liquid water and separates, remaining air is exerted gloomy pump installation 5 by first and taken away.
Referring to figs. 2 and 3, first exert gloomy pump installation 5 include at least one set exert gloomy pump group 38, exerting gloomy pump group 38 for every group includes
Base station body 24 and at least one exert it is gloomy pump 33, base station body 24 is provided with a main import and a primary outlet.Each exert gloomy pump 33
Including cold chamber 27, hot chamber 30, porous interlayer 28 and interface channel 32, divided between cold chamber 27 and hot chamber 30 by porous interlayer 28
Every the aperture in the hole on porous interlayer 28 is not more than the molecule mean free path of air.Wherein, porous interlayer 28 is porous thin
Film can be Bio-sil film, and the edge of porous membrane is sealingly disposed in base station body 24 by sealing ring.Due to porous
The aperture in the hole on interlayer 28 be not more than air molecule mean free path, when hot chamber 30 temperature be higher than cold chamber 27 temperature with
When meeting the condition that thermal transpiration effect occurs, the molecule of the air entered in cold chamber 27 will pass through porous interlayer 28 and be flowed into heat
In chamber 30, and because air molecule is assembled due to pressure rise in hot chamber 30, which achieves air to flow to high pressure from low-pressure state
State, i.e., hot chamber 30 vacuumize cold chamber 27.When the quantity for exerting gloomy pump 33 that every group is exerted gloomy pump group 38 is one, cold chamber 27
Import is connect by interface channel 32 with the main import of base station body 24, and the outlet of hot chamber 30 passes through interface channel 32 and base station body 24
Primary outlet connection；When the quantity for exerting gloomy pump 33 that every group is exerted gloomy pump group 38 is two or more, all exerts gloomy pump
33 exert the import of the cold chamber 27 of gloomy pump 33 with the outlet of the previous hot chamber 30 for exerting gloomy pump 33 by interface channel 32 and the latter
The mode of connection is sequentially disposed in series in base station body 24, the import of first cold chamber 27 for exerting gloomy pump 33 and base station body 24
Main import connection, the last one outlet for exerting the hot chamber 30 of gloomy pump 33 is connect with the primary outlet of base station body 24, when air sequentially passes through
Cross it is all it is concatenated exert it is gloomy pump 33 after, air pressure will be increased constantly.It is exerted in gloomy pump group 38 when every group and exerts gloomy pump
When 33 quantity is not very much, the gloomy pump 33 of exerting in group can be made linearly to be together in series front to back certainly, and be exerted when every group
When the quantity for exerting gloomy pump 33 in gloomy pump group 38 is more, it can make to exert gloomy pump 33 to be in several row's parallelly distribute ons in base station body 24,
Two rows of exerting adjacent at this time is separated between gloomy compressor with adiabatic insulation.It exerts gloomy pump group 38 for every group and is provided with a heat-carrying agent
Channel 31, and 31 surface of heat-carrying agent channel package heat preservation sleeve 35, to reduce the thermal loss in channel；Every group is exerted gloomy pump group 38
It is provided with a low temperature aquaporin 34, and 34 surface of low temperature aquaporin package heat preservation sleeve 35, to reduce the loss of refrigeration capacity in channel.For
Every group of reduction cold chamber 27 for exerting gloomy pump group 38 and hot chamber 30 and extraneous heat exchange, the base station body 24 of gloomy pump group 38 is exerted at every group
Outer surface be provided with heat insulation layer 23, to reduce the loss of cooling capacity in cold chamber 27 and reduce the loss of heat in hot chamber 30.Often
Group exert gloomy pump group 38 respectively exert it is gloomy pump 33 hot chamber 30 in be provided with a temperature-detecting device 26, to detect the temperature in hot chamber 30
Degree, every group exert gloomy pump group 38 exert it is gloomy pump 33 cold chamber 27 in be provided with a temperature-detecting device 26, to detect in cold chamber 27
Temperature, it can thus be appreciated that every group exert gloomy pump group 38 exert it is gloomy pump 33 hot chamber 30 and cold chamber 27 between the temperature difference.Every group exert it is gloomy
It is each provided with a hot chamber heat exchanger 29 in the hot chamber 30 for respectively exerting gloomy pump 33 of pump group 38, all hot chamber heat exchangers 29 are with previous
The import of the hot-fluid pipeline of the outlet and hot chamber heat exchanger 29 of the latter of the hot-fluid pipeline of a hot chamber heat exchanger 29 is situated between by heat-carrying
The mode that matter channel 31 is attached is sequentially connected in series, and the import and first of the hot-fluid pipeline of first hot chamber heat exchanger 29
The outlet in a heat-carrying agent channel 31 connects, the outlet and the last one heat-carrying of the hot-fluid pipeline of the last one hot chamber heat exchanger 29
The import of medium channel 31 connects, so that hot fluid is by heat-carrying agent channel 31 followed by the hot-fluid of each hot chamber heat exchanger 29
Pipeline；Every group exert gloomy pump group 38 exert it is gloomy pump 33 cold chamber 27 in be each provided with a cold chamber heat exchanger 25, all cold chambers
Heat exchanger 25 is with the cold flow pipeline of the outlet of the cold flow pipeline of previous cold chamber heat exchanger 25 and the cold chamber heat exchanger 25 of the latter
Import is sequentially connected in series in such a way that low temperature aquaporin 34 is attached, and the cold flow pipeline of first cold chamber heat exchanger 25
Import connect with the outlet of first low temperature aquaporin 34, the outlet of the cold flow pipeline of the last one cold chamber heat exchanger 25 with most
The import of the latter low temperature aquaporin 34 connects, so that water at low temperature is by low temperature aquaporin 34 followed by each cold chamber heat exchanger 25
Cold flow pipeline.Exert that 33 concatenated quantity of gloomy pump are more, and the suction capactity for exerting gloomy pump group 38 is stronger, very in gloomy pump group 38 because exerting
The vacuum degree that empty pre-cooling box 1 can reach is higher, so the first every group for exerting gloomy pump installation 5 is exerted in gloomy pump group 38 and exert gloomy pump
33 quantity is determined according to the vacuum degree that vacuum pre-cooling case 1 requires.
With reference to Fig. 1 and Fig. 3, when the quantity for exerting gloomy pump group 38 that first exerts gloomy pump installation 5 is two or more, this
It exerts gloomy pump group 38 to connect with gas introduction tube 36 in parallel, i.e. each group main import and the gas of exerting the base station body 24 of gloomy pump group 38
The outlet of ingress pipe 36 connects；And these exert connecting with gas eduction tube 37 for gloomy 38 parallel connection of pump group, i.e., each group exerts gloomy pump group 38
The primary outlet of base station body 24 connect with the import of gas eduction tube 37.First exerts the quantity for exerting gloomy pump group 38 of gloomy pump installation 5
It can be determined according to the capacity of system requirements.First exerts the import of the gas introduction tube 36 of gloomy pump installation 5 and cooling cylinder 3
Gas vent connection, the first first outlet for exerting the gas eduction tube 37 of gloomy pump installation 5 are connect with exhaust outlet 6, and first exerts gloomy pump
The second outlet of the gas eduction tube 37 of device 5 is connect with the import of vacuum pre-cooling case 1, and the first gas for exerting gloomy pump installation 5
The second outlet of delivery line 37 is provided with a vacuum valve 7, to adjust the vacuum degree of vacuum pre-cooling case 1.Sky in vacuum pre-cooling case 1
The vapor that gas and food are evaporated enters cooling cylinder 3 by connecting tube 2, after cooling cylinder 3 separates vapor therein, is left
Air be inhaled into each group that first exerts gloomy pump installation 5 via gas introduction tube 36 and exert gloomy pump group 38, exert gloomy pump group 38 from each group
Air out is divided into two tributaries after converging inflow gas eduction tube 37: first tributary is connect with exhaust outlet 6, and air is arranged
Into external environment, to achieve the purpose that pumped down, the pressure of vacuum pre-cooling case 1 is reduced, improves the true of vacuum pre-cooling case 1
Reciprocal of duty cycle；Article 2 tributary flows into vacuum pre-cooling case 1, increases the pressure of vacuum pre-cooling case 1, is adjusted jointly by being evacuated with air inlet
The size of the pressure of vacuum pre-cooling case 1, so that vacuum pre-cooling case 1 can reach and maintain required vacuum degree, to meet processing
The requirement of food in vacuum pre-cooling case 1.Preferably, vacuum pre-cooling case 1 and cooling cylinder 3 are provided with insulating layer, because of cooling cylinder 3
Temperature it is lower and the range of setting need to be maintained at, and the temperature of vacuum pre-cooling case 1 is also required to be maintained at the range of setting, so
The connecting tube 2 of vacuum pre-cooling case 1, cooling cylinder 3 and connection vacuum pre-cooling case 1 and cooling cylinder 3 has required heat insulation effect, therefore
Insulating layer is provided in the outer surface of the outer surface of vacuum pre-cooling case 1, the outer surface of cooling cylinder 3 and connecting tube 2.
With reference to Fig. 1 and Fig. 3, enter evaporator in the air and vapor and cooling cylinder 3 of cooling cylinder 3 from vacuum pre-cooling case 1
Refrigerant in 13 gilled tube carries out heat exchange, the heat gasification of refrigerant suction air and vapor, the temperature drop of air
Low and Water vapor condensation forms water at low temperature.The refrigerant of the gilled tube of evaporator 13 is conveyed to second by gas introduction tube 36 and exerts
Gloomy pump installation 9, second, which exerts gloomy pump installation 9, exerts gloomy pump group 38 including at least one set, and the second every group for exerting gloomy pump installation 9 exerts gloomy pump
The structure of group 38 is consistent with every group of structure for exerting gloomy pump group 38 that first exerts gloomy pump installation 5, wherein second exerts gloomy pump installation 9
Every group of aperture for exerting the hole on the porous interlayer 28 for exerting gloomy pump 33 of gloomy pump group 38 is average no more than the molecule of gaseous refrigerant certainly
By journey.When the quantity for exerting gloomy pump group 38 that second exerts gloomy pump installation 9 is two or more, it is in parallel that these exert gloomy pump group 38
Ground is connect with gas introduction tube 36, i.e., each group exerts the main import of the base station body 24 of gloomy pump group 38 and the outlet of gas introduction tube 36 connects
It connects；And these exert connecting with gas eduction tube 37 for gloomy 38 parallel connection of pump group, i.e., the master that each group exerts the base station body 24 of gloomy pump group 38 goes out
Mouth is connect with the import of gas eduction tube 37.Second exerts the import of the gas introduction tube 36 of gloomy pump installation 9 and the steaming in cooling cylinder 3
Send out the outlet connection of the gilled tube of device 13；So that refrigerant in evaporator 13 by gas introduction tube 36 be conveyed to second exert it is gloomy
The each group of pump installation 9 exerts gloomy pump group 38.Because exerting gloomy pump 33 can be improved compression ratio by plural serial stage, so that refrigerant obtains
Higher pressure, so second exerts gloomy pump installation 9 and can substitute traditional compressor, therefore each group exert it is concatenated in gloomy pump group 38
The quantity for exerting gloomy pump 33 can determine according to the compression ratio needed for system, and second exerts and in parallel in gloomy pump installation 9 exert gloomy pump
The quantity of group 38 can be determined according to the refrigerating capacity of system.Gloomy pump is exerted in the import of the cooling duct of cooling heat exchanger 10 and second
The outlet of the gas eduction tube 37 of device 9 connects, the outlet of the cooling duct of cooling heat exchanger 10 and the gilled tube of evaporator 13
Import connection, and the import of the gilled tube of evaporator 13 is provided with a throttle mechanism 12.Preferably, throttle mechanism 12 is throttling
Valve, so that refrigerant cools down and is depressured.The each group for exerting gloomy pump installation 9 from second is exerted the gaseous refrigerant that gloomy pump group 38 comes out and is converged
Inflow gas delivery line 37 and the cooling duct that cooling heat exchanger 10 is transported to by gas eduction tube 37, cooling heat exchanger 10
Low temperature path is connect with external cold source, and the cooling medium from external cold source is made to flow through the low temperature path of cooling heat exchanger 10, with
Heat exchange is carried out with the gaseous refrigerant in the cooling duct of cooling heat exchanger 10, refrigerant is absorbed from air and vapor
Heat discharge into external environment, gaseous refrigerant because heat release cause temperature reduce due to become liquid refrigerant, then again general
Liquid refrigerant is transmitted back in the gilled tube of evaporator 13, is so recycled.Preferably, the refrigerant in evaporator 13 is water, ammonia
Or the working medium of the environmental sounds such as ethyl alcohol, liquid refrigerant in the gilled tube of evaporator 13 with the air and water in cooling cylinder 3
Steam carries out heat exchange, and liquid refrigerant heat absorption evaporation becomes gaseous refrigerant, and gaseous refrigerant exerts gloomy pump installation 9 by second
High temperature and high pressure gaseous refrigerant is formed after pressurization heating, high temperature and high pressure gaseous refrigerant is absorbed sky by cooling heat exchanger 10
The heat of gas and vapor forms high temperature and pressure liquid refrigerant after being released to external environment, and high temperature and pressure liquid refrigerant passes through
Throttle valve throttle decrease temperature and pressure, become low-temp low-pressure liquid refrigerant and be fed to the gilled tube of evaporator 13, with condensation
Air in case 3 and vapor carry out heat exchange, keep the low-temperature condition of cooling cylinder 3 and make vapor therein condense to be formed it is low
Warm water so recycles.
With reference to Fig. 3, the first every group for exerting gloomy pump installation 5 exert the import in first heat-carrying agent channel 31 of gloomy pump group 38 with
Heat-carrying agent inlet tube 21 connects, and the first every group for exerting gloomy pump installation 5 exerts the last one heat-carrying agent channel 31 of gloomy pump group 38
Outlet connect with heat-carrying agent outlet 22；First water at low temperature that first every group for exerting gloomy pump installation 5 exerts gloomy pump group 38 is logical
The import in road 34 is connect with the outlet of water at low temperature water inlet pipe 16, and the first every group for exerting gloomy pump installation 5 exerts last of gloomy pump group 38
The outlet of a low temperature aquaporin 34 is connect with the import of water at low temperature outlet pipe 17.Second every group for exerting gloomy pump installation 9 exerts gloomy pump group
The import in 38 first heat-carrying agent channel 31 is connect with heat-carrying agent inlet tube 21, and the second every group for exerting gloomy pump installation 9 is exerted
The outlet in the last one heat-carrying agent channel 31 of gloomy pump group 38 is connect with heat-carrying agent outlet 22；Second exerts gloomy pump installation 9
The import of every group of first low temperature aquaporin 34 for exerting gloomy pump group 38 connect with the outlet of water at low temperature water inlet pipe 16, second exert it is gloomy
Every group of pump installation 9 exerts the outlet of the last one low temperature aquaporin 34 of gloomy pump group 38 and the import of water at low temperature outlet pipe 17 connects
It connects.
With reference to Fig. 1, the vapor that air and food in vacuum pre-cooling case 1 are evaporated flow into cooling cylinder 3 and with condensation
Refrigerant in case 3 in the gilled tube of evaporator 13 carries out heat exchange, to reduce the temperature in cooling cylinder 3 and steam water therein
Air cooling is solidifying to form water at low temperature.The import of first triple valve 15 is connect with the low temperature water out of cooling cylinder 3, because in cooling cylinder 3
Water at low temperature is predominantly located at the bottom of cooling cylinder 3, therefore the low temperature water out of cooling cylinder 3 is set to the bottom of cooling cylinder 3, and the one or three
The import for the water at low temperature water inlet pipe 16 that the first outlet of port valve 15 exerts gloomy pump installation 5 with first is connect, and the first triple valve 15
The import for the water at low temperature water inlet pipe 16 that second outlet exerts gloomy pump installation 9 with second is connect.After water at low temperature flows into the first triple valve 15
Be divided into two tributaries: first tributary flows through the low temperature aquaporin 34 that the first every group for exerting gloomy pump installation 5 exerts gloomy pump group 38, conveying
Water at low temperature, with each cold chamber 27 of cooling, keeps the low-temperature condition of cold chamber 27 to each cold chamber heat exchanger 25；Article 2 tributary flows through
Second every group for exerting gloomy pump installation 9 exerts the low temperature aquaporin 34 of gloomy pump group 38, transporting low temperature water to each cold chamber heat exchanger 25 with
Cooling each cold chamber 27, keeps the low-temperature condition of cold chamber 27.Cooling each cold chamber 27, to maintain between cold chamber 27 and hot chamber 30
It is suitable for the temperature difference, improves driving force, generate more significant thermal transpiration effect.The import of second triple valve 18 exerts gloomy pump with first respectively
The outlet for the water at low temperature outlet pipe 17 that gloomy pump installation 9 is exerted with second in the outlet of the water at low temperature outlet pipe 17 of device 5 connects, and the two or three
The first outlet of port valve 18 is connect with discharge outlet, and the second outlet of the second triple valve 18 is connect with the low temperature water inlet of cooling cylinder 3,
And second the second outlet of triple valve 18 be provided with a regulating valve 19, to adjust the flow for the water at low temperature for flowing into cooling cylinder 3.From
One exert gloomy pump installation 5 and second exert gloomy pump installation 9 come out water at low temperature converge flow into the second triple valve 18 after be divided into two tributaries:
First tributary is connect with discharge outlet, and part water at low temperature is directly discharged in external environment；Cooling cylinder is flowed back in Article 2 tributary
3, part water at low temperature is recycled, into next circulation.
It continues to refer to figure 1, it is further preferred that the vacuum precooling device further includes first filter 4, first filter 4
Import connect with the gas vent of cooling cylinder 3, and first filter 4 outlet with first exert gloomy pump installation 5 gas import
The import of pipe 36 connects.First filter 4 for filtering air in impurity, prevent its blocking from first exerting each of gloomy pump installation 5
The porous interlayer 28 of gloomy pump 33 is exerted, gloomy pump installation 5 is exerted in guarantee first to be operated normally.
It continues to refer to figure 1, it is further preferred that the vacuum precooling device further includes the second filter 8, the second filter 8
Import connect with the outlet of the gilled tube of evaporator 13, and the gas that gloomy pump installation 9 is exerted with second in the outlet of the second filter 8
The import of ingress pipe 36 connects.Second filter 8 is used to filter the impurity in refrigerant, prevents its blocking second from exerting gloomy pump installation
The 9 porous interlayer 28 for respectively exerting gloomy pump 33, gloomy pump installation 9 is exerted in guarantee second to be operated normally.
It continues to refer to figure 1, it is further preferred that the vacuum precooling device further includes third filter 14, third filter
14 import is connect by diversion pipe 20 with the low temperature water out of cooling cylinder 3, and the outlet of third filter 14 and the first threeway
The import of valve 15 connects.The low temperature water out of the bottom of cooling cylinder 3 is connect with the import of diversion pipe 20, the outlet of diversion pipe 20 with
The import of third filter 14 connects, and diversion pipe 20 is for the water at low temperature in water conservancy diversion and Collection utilization cooling cylinder 3.Third filter
14, for filtering the impurity in water at low temperature, prevent its blocking two from exerting the low temperature aquaporin 34 of gloomy pump installation and leading to water at low temperature
The cold flow pipeline for each cold chamber heat exchanger 25 that road 34 connects, to keep the low-temperature condition of cold chamber 27, to guarantee that first exerts gloomy pump
Device 5 and second is exerted gloomy pump installation 9 and can be operated normally.
It continues to refer to figure 1, it is further preferred that the vacuum precooling device further includes storage room 11, the entrance of storage room 11
It is connect with the outlet of the cooling duct of cooling heat exchanger 10, and the import of the gilled tube of the outlet of storage room 11 and evaporator 13 connects
It connects.The high temperature and pressure liquid refrigerant come out from cooling heat exchanger 10 flows into storage room 11 and accumulates in it, avoids refrigerant
Flowed fluctuation has an adverse effect to the performance of the present apparatus.
The heat-carrying agent that of the invention first exerts the heat-carrying agent inlet tube 21 of gloomy pump installation 5 and second exerts gloomy pump installation 9
Inlet tube 21 is connect with external heat source.The hot fluid of external heat source flows separately through the first every group for exerting gloomy pump installation 5 and exerts gloomy pump
The heat-carrying agent channel 31 of group 38 and second exert gloomy pump installation 9 every group exert the heat-carrying agent channel 31 of gloomy pump group 38, conveying heat
Fluid, to heat to each hot chamber 30, keeps the condition of high temperature in hot chamber 30, after carrying out heat exchange to each hot chamber heat exchanger 29
Hot fluid again from corresponding heat-carrying agent outlet 22 flow out.Wherein, heating hot chamber 30 is to make hot chamber 30 and cold chamber 27
Between more effectively generate and maintain the suitable temperature difference, it is ensured that generate more significant thermal transpiration effect.The hot fluid of external heat source
Can be by industry generate more than the low grade heat energies such as (useless) heat, solar energy or the geothermal energy gas or liquid that heat, be not required to
Consume excessive high-grade energy, energy conservation and environmental protection.The structure of vacuum precooling device of the invention is simple, and whole device does not need
Consume excessive high-grade energy, it is reliable for operation, the refrigerating efficiency of whole device with to vacuumize efficiency higher, and its refrigerating capacity with
And it vacuumizes performance and can be adjusted according to actual needs.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (8)
1. a kind of use the vacuum precooling device for exerting gloomy pump characterized by comprising
Vacuum pre-cooling case (1)；
Cooling cylinder (3), gas feed are connect with the outlet of the vacuum pre-cooling case (1)；
First exerts gloomy pump installation (5), and the import of gas introduction tube (36) is connect with the gas vent of the cooling cylinder (3), should
First first outlet for exerting the gas eduction tube (37) of gloomy pump installation (5) is connect with exhaust outlet (6), this first exerts gloomy pump installation
(5) second outlet of gas eduction tube (37) is connect with the import of the vacuum pre-cooling case (1), and this first exerts gloomy pump installation
(5) second outlet of gas eduction tube (37) is provided with a vacuum valve (7)；
Second exerts gloomy pump installation (9), the import of gas introduction tube (36) and the rib of the evaporator (13) in the cooling cylinder (3)
The outlet of piece pipe connects；
Cooling heat exchanger (10), the gas eduction tube (37) that the import of cooling duct exerts gloomy pump installation (9) with described second
Outlet connection, the outlet of the cooling duct of the cooling heat exchanger (10) are connect with the import of the gilled tube of the evaporator (13),
And the import of the gilled tube of the evaporator (13) is provided with a throttle mechanism (12)；
First triple valve (15), import are connect with the low temperature water out of the cooling cylinder (3), and the of first triple valve (15)
The import for the water at low temperature water inlet pipe (16) that gloomy pump installation (5) is exerted with described first in one outlet is connect, and first triple valve (15)
The import of the second outlet water at low temperature water inlet pipe (16) of exerting gloomy pump installation (9) with described second connect；And
The outlet of the water at low temperature outlet pipe (17) of gloomy pump installation (5) is exerted in second triple valve (18), import with described first respectively
The outlet for the water at low temperature outlet pipe (17) for exerting gloomy pump installation (9) with described second connects, and the first of second triple valve (18) goes out
Mouth is connect with discharge outlet, and the second outlet of second triple valve (18) is connect with the low temperature water inlet of the cooling cylinder (3), and should
The second outlet of second triple valve (18) is provided with a regulating valve (19).
2. according to claim 1 use the vacuum precooling device for exerting gloomy pump, which is characterized in that further include first filter
(4), the import of the first filter (4) is connect with the gas vent of the cooling cylinder (3), and the first filter (4)
The import of the outlet gas introduction tube (36) of exerting gloomy pump installation (5) with described first connect.
3. according to claim 1 use the vacuum precooling device for exerting gloomy pump, which is characterized in that further include the second filter
(8), the import of second filter (8) is connect with the outlet of the gilled tube of the evaporator (13), and second filtering
The import for the gas introduction tube (36) that gloomy pump installation (9) are exerted with described second in the outlet of device (8) is connect.
4. according to claim 1 use the vacuum precooling device for exerting gloomy pump, which is characterized in that further include third filter
(14), the import of the third filter (14) is connect by diversion pipe (20) with the low temperature water out of the cooling cylinder (3), and
The outlet of the third filter (14) is connect with the import of first triple valve (15).
5. according to claim 1 use the vacuum precooling device for exerting gloomy pump, which is characterized in that further include storage room
(11), the entrance of the storage room (11) is connect with the outlet of the cooling duct of the cooling heat exchanger (10), and the storage
The outlet of room (11) is connect with the import of the gilled tube of the evaporator (13).
6. according to claim 1 use the vacuum precooling device for exerting gloomy pump, which is characterized in that the throttle mechanism (12)
For throttle valve.
7. according to claim 1 use the vacuum precooling device for exerting gloomy pump, which is characterized in that the evaporator (13)
Refrigerant in gilled tube is water, ammonia or ethyl alcohol.
8. according to claim 1 use the vacuum precooling device for exerting gloomy pump, which is characterized in that the vacuum pre-cooling case
(1) and the cooling cylinder (3) is provided with insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790617.6A CN109140866B (en) | 2018-07-18 | 2018-07-18 | Vacuum precooling device using Knudsen pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790617.6A CN109140866B (en) | 2018-07-18 | 2018-07-18 | Vacuum precooling device using Knudsen pump |
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| CN109140866B CN109140866B (en) | 2020-11-03 |
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| CN201810790617.6A Active CN109140866B (en) | 2018-07-18 | 2018-07-18 | Vacuum precooling device using Knudsen pump |
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| CN109140866B (en) | 2020-11-03 |
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