CN106871484B - A kind of gas refrigeration system based on thermal transpiration effect - Google Patents
A kind of gas refrigeration system based on thermal transpiration effect Download PDFInfo
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- CN106871484B CN106871484B CN201710053867.7A CN201710053867A CN106871484B CN 106871484 B CN106871484 B CN 106871484B CN 201710053867 A CN201710053867 A CN 201710053867A CN 106871484 B CN106871484 B CN 106871484B
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Abstract
The invention discloses a kind of gas refrigeration systems based on thermal transpiration effect, it includes refrigerant input pipe, main exert gloomy compressor set, refrigerant efferent duct, cooler, throttle mechanism, vacuum tank, refrigerating medium heat exchanger tube, auxiliary exerts gloomy compressor set, hot chamber heat exchanger and cold chamber heat exchanger, every group of master exerts that gloomy compressor set includes base station body and several exert gloomy compressor, and exerting gloomy compressor includes cold chamber, hot chamber, porous interlayer and interface channel.The hot chamber for exerting gloomy compressor of the invention by hot chamber heat exchanger using industry more than (useless) heat maintain higher temperature, so that refrigerant flow to hot chamber from cold chamber by thermal transpiration effect, to make refrigerant be boosted and in system internal circulation flow, being conveyed to after refrigerating medium absorption cooling capacity needs awkward silence at a meeting to be used, it can save high-grade energy, and refrigerant uses the gas non-hazardous to human body and environment.
Description
Technical field
The present invention relates to refrigeration technology field, in particular to a kind of gas refrigeration system based on thermal transpiration effect.
Background technique
With society, the continuous improvement of economic fast development and living standards of the people, energy and environment problem is increasingly convex
It is aobvious.China has been the world's largest energy-consuming state and CO2State is discharged, wherein industrial energy consumption energy proportion is maximum, mainly
Concentrate on the industries such as electric power, petroleum gas, chemical industry, light industry, building materials and metallurgy.The production process of these industries is often with big
(useless) hot driving more than amount, wherein at least has half not utilized rationally, causes energy waste and environmental pollution；As can rationally sharp
(useless) thermal resource, can effectively improve energy utilization rate more than these, provide strong support for the realization of China's target for energy-saving and emission-reduction.
Industrial production link has many places to need cooling capacity, such as cooling down, the Yi Jishi of some process flows or equipment
The construction etc. of suitable production environment.Refrigeration requirement mainly is solved the problems, such as using two class schemes at present, first is that using the higher steaming of efficiency
Air pressure compression type refrigerating system；Second is that making full use of remaining (useless) heat, absorption or adsorption refrigeration system is used.These two types of schemes are equal
Some problems are individually present.Steam compression type refrigerating need to consume high-grade electric energy or mechanical energy, and its widely used HCFCs
With HFCs class refrigerant because the environmental problems such as ozone layer depletion or generation greenhouse effects have been among superseded process.Absorption system
Cold usually using ammonia-water or water-lithium-bromide solution as working medium pair, ammonia has toxicity and inflammable and explosive, if leakage will cause environment
Pollution and initiation safety accident；Lithium bromide also has certain toxicity and tool corrosivity, also pollutes the environment, as misoperation is also easy to
Crystallization, influences refrigeration effect.Adsorption refrigeration system is usually intermittent duty, needs to increase if being designed to continuous operation and adsorb
Bed makes system structure and operation sequence become complicated.
As it can be seen that research and development can efficiently use remaining (useless) thermal drivers and existing steam compression type, absorption, absorption
The New Refrigerating technology of formula refrigeration disadvantage is of great significance.
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 gas refrigeration systems based on thermal transpiration effect, to overcome existing system
Cooling system or the disadvantages of structure is complicated or needs to consume high-grade energy and the working medium used not environmentally.
To achieve the above object, the present invention provides a kind of gas refrigeration systems based on thermal transpiration effect, wherein packet
It includes: refrigerant input pipe；At least one set master exerts gloomy compressor set, and it includes: base station body that master, which exerts gloomy compressor set, described in every group, sets
It is equipped with a main import and a primary outlet；The main import is connect with the refrigerant input pipe；And several exert gloomy compression
Machine, it includes cold chamber, hot chamber, porous interlayer and interface channel that each this, which exerts gloomy compressor, between the cold chamber and the hot chamber
Separated by the porous interlayer, the aperture in the hole on the porous interlayer is average no more than the molecule of gas refrigerant freely
Journey, the import of the interface channel are connect with the outlet of the hot chamber；Several this exert gloomy compressor be sequentially disposed in series in
In the base station body, the import that the cold chamber of gloomy compressor is exerted described in first is connect with the main import, is exerted described in the latter gloomy
The import of the cold chamber of compressor is connect with the outlet of the previous interface channel for exerting gloomy compressor, described in the last one
The outlet for exerting the interface channel of gloomy compressor is connect with the primary outlet；Refrigerant efferent duct, master described in every group exert gloomy pressure
The primary outlet of the base station body of contracting unit is connect with the refrigerant efferent duct；Cooler, the import of heat passage and the refrigeration
The connection of agent efferent duct；Throttle mechanism, import are connect with the outlet of the heat passage of the cooler；Vacuum tank is provided with
First tank import, the second tank import and tank outlet, the first tank import are gone out by a vacuum valve and the throttle mechanism
Mouth connection；Refrigerating medium heat exchanger tube is set in the vacuum tank, one end of the refrigerating medium heat exchanger tube and a refrigerating medium input pipe
Connection, and the other end of the refrigerating medium heat exchanger tube is connect with a refrigerating medium efferent duct；It is auxiliary to exert gloomy compressor set, structure with it is described
The main structure for exerting gloomy compressor set is identical, and the primary outlet of the auxiliary base station body for exerting gloomy compressor set and the second tank import connect
It connects；Hot chamber heat exchanger, the main all heat for exerting gloomy compressor exerted in gloomy compressor set are intracavitary described in every group is each provided with one
The hot chamber heat exchanger；The auxiliary all heat for exerting gloomy compressor exerted in gloomy compressor set are intracavitary to be also each provided with the heat
Chamber heat exchanger；The import of all hot chamber heat exchangers is connect with a heat-carrying agent inlet tube；All hot chamber heat exchange
The outlet of device is connect with a heat-carrying agent outlet；And cold chamber heat exchanger, the main institute exerted in gloomy compressor set described in every group
What is had described exert the described of gloomy compressor and cold intracavitary is each provided with the cold chamber heat exchanger；All cold chamber heat exchangers
Import is connect with a cooling medium inlet pipe, and the cooling medium inlet pipe and the refrigerant input pipe pass through a threeway
Valve is exported with the tank of the vacuum tank jointly and is connected；The outlet of all cold chamber heat exchangers goes out with a cooling medium
Mouth pipe connection, and the cooling medium outlet is connect with the main import of the auxiliary base station body for exerting gloomy compressor set.
Preferably, in above-mentioned technical proposal, the porous interlayer is porous membrane.
Preferably, in above-mentioned technical proposal, the throttle mechanism is throttle valve or expanding machine.
Preferably, in above-mentioned technical proposal, the hot chamber heat exchanger and the cold chamber heat exchanger are fin tube type heat exchange
Device.
Preferably, in above-mentioned technical proposal, the main base station body for exerting gloomy compressor set described in every group is provided with an epicoele and one
Cavity of resorption, described in every group it is main exert gloomy compressor set it is all exert gloomy compressor be set to it is described intracavitary；The cavity of resorption is provided with
One cavity of resorption import and cavity of resorption outlet, the cavity of resorption are separated into a flow channel and a flow pass by a baffle plate,
The cavity of resorption import is connected to the flow channel, and the cavity of resorption outlet is connected to the flow pass；The cavity of resorption import with
The cooling medium inlet pipe connection, the cavity of resorption outlet are connect with the cooling medium outlet；Each cold chamber heat exchange
The import of device is connected to by an air inlet with the flow channel, and the outlet of each cold chamber heat exchanger passes through a venthole
It is connected to the flow pass.
Preferably, in above-mentioned technical proposal, it is provided with a refrigerant between the throttle mechanism and the cooler and changes
Hot device, the import of the heat passage of the refrigerant heat exchanger are connect with the outlet of the heat passage of the cooler, the section
The import of stream mechanism is connect with the outlet of the heat passage of the refrigerant heat exchanger；The cold flow channel of the refrigerant heat exchanger
Import and the tank of the vacuum tank export and connect, and the cooling medium inlet pipe and the refrigerant input pipe pass through
The triple valve is connect with the outlet in the cold flow channel of the refrigerant heat exchanger jointly.
Preferably, in above-mentioned technical proposal, the refrigerating medium input pipe passes through a refrigerating medium heat exchanger and the refrigerating medium
Heat exchanger tube connection, the import of the heat passage of the refrigerating medium heat exchanger is connect with the refrigerating medium input pipe, and the refrigerating
The outlet of the heat passage of agent heat exchanger is connect with one end of the refrigerating medium heat exchanger tube；The cold flow of the refrigerating medium heat exchanger is logical
The import in road is connect with the outlet of the throttle mechanism, and the first tank import is exchanged heat by the vacuum valve and the refrigerating medium
The outlet in the cold flow channel of device connects.
Compared with prior art, the invention has the following beneficial effects:
1, the hot chamber for exerting gloomy compressor of the invention utilizes more than industry (useless) heat to maintain higher by hot chamber heat exchanger
Temperature so that gas refrigerant exert obtained in gloomy compressor set boosting in system realize automatic cycle flowing,
Can directly be combined with industrial processes, with make full use of industrially generate more than (useless) heat, it is too many not need consumption
High-grade electric energy or mechanical energy.Refrigerating medium is after the cooling capacity that refrigerating medium heat exchanger and vacuum tank interior suction getter cryogen discharge
Can be conveyed to needs awkward silence at a meeting to be used, and is process flow and construction suitable for producing ring so as to partially substitute conventional refrigerant unit
Border etc. provides required cooling capacity.
2, of the invention to exert gloomy compressor be modularized design, and simple structure, can be according to actual needs to exerting gloomy compression
Machine carries out series and parallel combination.
3, structure of the invention is simple, and whole system movement-less part does not need lubricating oil, reliable for operation, and entire system
The refrigerating efficiency of system is higher, and refrigerating capacity can be adjusted according to actual needs.
4, natural environmental-protective and the stable gas of chemical property can be used in refrigerant of the invention, to human body and environment without danger
Evil.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the gas refrigeration system based on thermal transpiration effect according to the present invention.
Fig. 2 is the structural schematic diagram that master according to the present invention exerts gloomy compressor set.
Fig. 3 is the structural schematic diagram of base station body according to the present invention.
Fig. 4 is the structural schematic diagram of the cavity of resorption of base station body according to the present invention.
Fig. 5 is according to the present invention multiple rows of to exert gloomy compressor and be arranged in series in the intracorporal structural schematic diagram of base station.
Fig. 6 is the structural schematic diagram of fin-tube heat exchanger according to the present invention.
Main appended drawing reference explanation:
1- refrigerant input pipe, 2- master exert gloomy compressor set, 3- refrigerant efferent duct, 4- cooler, 5- throttle mechanism, 6-
Refrigerating medium heat exchanger, 7- refrigerating medium input pipe, 8- vacuum tank, 9- the first tank import, 10- the second tank import, the outlet of 11- tank, 12-
Vacuum valve, 13- refrigerating medium heat exchanger tube, 14- refrigerating medium efferent duct, 15- is auxiliary to exert gloomy compressor set, 16- cooling medium inlet pipe,
17- cooling medium outlet, 18- triple valve, 19- refrigerant heat exchanger, 20- heat-carrying agent inlet tube, the outlet of 21- heat-carrying agent
Pipe, 22- base station body, the main import of 23-, 24- primary outlet, the cold chamber of 25-, the hot chamber of 26-, the porous interlayer of 27-, 28- interface channel, 29-
Hot chamber heat exchanger, the cold chamber heat exchanger of 30-, 31- epicoele, 32- cavity of resorption import, 33- cavity of resorption, the outlet of 34- cavity of resorption, 35- baffle plate,
36- flow channel, 37- flow pass, 38- air inlet, 39- venthole, 40- adiabatic insulation, 41- fin-tube heat exchanger, 42-
Bend pipe, 43- copper fin.
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. 6 shows a kind of gas refrigeration system based on thermal transpiration effect according to the preferred embodiment of the present invention
The structural schematic diagram of system, should gas refrigeration system based on thermal transpiration effect include refrigerant input pipe 1, it is at least one set of main exert it is gloomy
Compressor set 2, refrigerant efferent duct 3, cooler 4, throttle mechanism 5, refrigerating medium heat exchanger 6, vacuum tank 8, refrigerating medium heat exchanger tube
13, auxiliary to exert gloomy compressor set 15, hot chamber heat exchanger 29 and cold chamber heat exchanger 30, with reference to Fig. 2, every group of master exerts gloomy compressor set 2
Including base station body 22 and several exert gloomy compressor, base station body 22 is provided with a main import 23 and a primary outlet 24, it is main into
Mouth 23 is connect with refrigerant input pipe 1, and when the main quantity for exerting gloomy compressor set 2 is two or more, these masters exert gloomy compression
Unit 2 is just connect with refrigerant input pipe 1 in parallel, i.e., all masters exert gloomy compressor set 2 respectively by the master of base station body 22 into
Mouthfuls 23 connect with refrigerant input pipe 1, so as to by refrigerant input pipe 1 gas refrigerant be conveyed to each group master exert it is gloomy
Compressor set 2.The main quantity for exerting gloomy compressor set 2 can be determined according to the refrigerating capacity size of system.Each exert gloomy compressor
Including cold chamber 25, hot chamber 26, porous interlayer 27 and interface channel 28, divided between cold chamber 25 and hot chamber 26 by porous interlayer 27
Every the aperture in the hole on porous interlayer 27 is not more than the molecule mean free path of gas refrigerant.Preferably, porous interlayer 27 is
Porous membrane can be Bio-sil film, and the edge of porous membrane is sealingly disposed in base station body 22 by sealing ring.By
It is not more than the molecule mean free path of gas refrigerant in the aperture in the hole on porous interlayer 27, when the temperature of hot chamber 26 is higher than cold
When to meet gas the condition of thermal transpiration effect occurs for chamber 25, the molecule of the gas refrigerant entered in cold chamber 25 will pass through more
Hole interlayer 27 automatically flows into hot chamber 26, and because gas refrigeration agent molecule focuses due to pressure rise in hot chamber 26.Connection is logical
The import in road 28 is connect with the outlet of hot chamber 26, several are exerted gloomy compressor and are sequentially disposed in series in base station body 22, with right
Gas refrigerant is continued for boosting.First import of cold chamber 25 for exerting gloomy compressor and the main import 23 of base station body 22 connect
It connects, the import that the latter exerts the cold chamber 25 of gloomy compressor is connect with the outlet of the previous interface channel 28 for exerting gloomy compressor, most
The latter is exerted the outlet of the interface channel 28 of gloomy compressor and is connect with the primary outlet 24 of base station body 22.When gas refrigerant sequentially passes through
Cross it is all exert gloomy compressor after, the pressure of gas refrigerant will obtain lasting raising.Every group of master exerts in gloomy compressor set 2
The quantity for exerting gloomy compressor determined according to the operating pressure of cooler 4.Gloomy pressure is exerted when every group of master exerts in gloomy compressor set 2
When the quantity of contracting machine is not very much, the gloomy compressor of exerting in group can be made linearly to be together in series front to back certainly, and when every
When the quantity for exerting gloomy compressor that group is main to exert in gloomy compressor set 2 is more, with reference to Fig. 5, it can make to exert gloomy compressor in base station body
It is in several row's parallelly distribute ons in 22, two rows of exerting adjacent at this time is separated between gloomy compressor with adiabatic insulation 40.
It continues to refer to figure 1, every group of master exerts the primary outlet 24 of the base station body 22 of gloomy compressor set 2 and refrigerant efferent duct 3 connects
Connect, when the main quantity for exerting gloomy compressor set 2 is two or more, these masters exert gloomy compressor set 2 just in parallel with refrigerant
Efferent duct 3 connects, so that so that all masters is exerted gloomy compressor set 2 is intensively conveyed to refrigerant output gas refrigerant
Pipe 3.The import of the heat passage of cooler 4 is connect with refrigerant efferent duct 3, and refrigerant efferent duct 3 conveys gas refrigerant
It is cooled down in cooler 4, cooler 4 can be micro-channel heat exchanger.The import of throttle mechanism 5 and the hot-fluid of cooler 4
The outlet in channel connects, and is used to carry out decrease temperature and pressure to cooled device 4 gas refrigerant after cooling.Throttle mechanism 5 can be with
It is specific depending on used gas refrigerant type for throttle valve or expanding machine.For the highest of throttling refrigeration effect occurs
Conversion temperature is higher than most of gas of environment temperature, and throttling can just be such that temperature reduces at ambient temperature, and throttle machine at this time
Structure 5 just uses throttle valve.And the highest conversion temperature for throttling refrigeration effect occurs is far below the gas of environment temperature, such as helium
Gas, argon gas and neon etc., at ambient temperature throttling temperature cannot be made to reduce, at this time throttle mechanism 5 must use expanding machine with
Achieve the purpose that cooling.
Continue to refer to figure 1, vacuum tank 8 is both a pressure vessel and a heat exchanger, outside be covered with heat preservation
Layer.Vacuum tank 8 is provided with the first tank import 9, the second tank import 10 and tank outlet 11, and the first tank import 9 is set to vacuum tank 8
Bottom, the second tank import 10 is set to the top of vacuum tank 8, and tank outlet 11 is set to the centres of vacuum tank 8.First tank import
9 are connect by a vacuum valve 12 with the outlet of throttle mechanism 5, and refrigerating medium heat exchanger tube 13 is set in vacuum tank 8, refrigerating medium heat exchange
One end of pipe 13 is connect with a refrigerating medium input pipe 7, and the other end of refrigerating medium heat exchanger tube 13 and a refrigerating medium efferent duct 14 connect
It connects.Refrigerating medium input pipe 7 is used for the defeated feeding system of refrigerating medium, and refrigerating medium can be the liquid such as water.It enters in vacuum tank 8
Low temperature low pressure gas refrigerant expands under low vacuum environment, and pressure and temperature reduces again, thus increase the refrigerating capacity of system,
After refrigerating medium enters after refrigerating medium heat exchanger tube 13 cooling capacity for absorbing gas refrigerant release, pass through refrigerating medium efferent duct 14
Being conveyed to needs awkward silence at a meeting to be used.It continues to refer to figure 1, it is preferable that refrigerating medium input pipe 7 passes through a refrigerating medium heat exchanger 6 and refrigerating
Agent heat exchanger tube 13 connects, and the import of the heat passage of refrigerating medium heat exchanger 6 is connect with refrigerating medium input pipe 7, and refrigerating medium exchanges heat
The outlet of the heat passage of device 6 is connect with one end of refrigerating medium heat exchanger tube 13, the import in the cold flow channel of refrigerating medium heat exchanger 6 with
The outlet of throttle mechanism 5 connects, and the first tank import 9 is connected by the outlet in the cold flow channel of vacuum valve 12 and refrigerating medium heat exchanger 6
It connects.Refrigerating medium heat exchanger 6 is a cryogenic heat exchanger, can use micro-channel heat exchanger, the gas of refrigerating medium and low-temp low-pressure
Refrigerant exchanges heat wherein, and temperature tentatively increases after the heat absorption of low temperature low pressure gas refrigerant, and refrigerating medium is entering vacuum
Initial absorption cooling capacity before tank 8, to improve refrigerating efficiency.
It continues to refer to figure 1 and Fig. 2, the auxiliary structure for exerting gloomy compressor set 15 is identical as the main structure of gloomy compressor set 2 of exerting, auxiliary
The primary outlet for exerting the base station body of gloomy compressor set 15 is connect with the second tank import 10.Every group of master exerts all in gloomy compressor set 2
The heat for exerting gloomy compressor it is intracavitary be each provided with a hot chamber heat exchanger 29, it is auxiliary exert in gloomy compressor set 15 all exert gloomy pressure
The heat of contracting machine is intracavitary to be also each provided with a hot chamber heat exchanger 29.The import of all hot chamber heat exchangers 29 with a heat-carrying agent
Inlet tube 20 connects, and the outlet of all hot chamber heat exchangers 29 is connect with a heat-carrying agent outlet 21.Heat-carrying agent into
Mouthful pipe 20 be used for carry industry generate more than (useless) hot medium be transported in hot chamber heat exchanger 29, to exert gloomy pressure to each
The hot chamber 26 of contracting machine is heated, and makes to be able to maintain that in higher temperature, after absorbing heat in each hot chamber 26 for exerting gloomy compressor
Medium discharged again from heat-carrying agent outlet 21.Heat-carrying agent can be the liquid such as water, or gas.Every group of master
It exerts and is each provided with a cold chamber heat exchanger 30 in all cold chambers 25 for exerting gloomy compressor in gloomy compressor set 2, it is auxiliary to exert gloomy pressure
Exerting in contracting unit 15 can then be not provided with cold chamber heat exchanger 30 in the cold chamber 25 of gloomy compressor, at this point, auxiliary exert gloomy compressor set 15
The structure of base station body can be not exactly the same with the structure of the main base station body 22 that exert gloomy compressor set 2, and auxiliary exert gloomy compressor set
The arrangement mode for exerting gloomy compressor in 15 can also be incomplete with the main arrangement mode for exerting gloomy compressor exerted in gloomy compressor set 2
It is identical.The import of all cold chamber heat exchangers 30 is connect with a cooling medium inlet pipe 16, cooling medium inlet pipe 16 and system
Cryogen input pipe 1 is connect with the tank of vacuum tank 8 outlet 11 jointly by a triple valve 18.All cold chamber heat exchangers 30 go out
Mouth is connect with a cooling medium outlet 17, and the master of cooling medium outlet 17 and the auxiliary base station body for exerting gloomy compressor set 15
Import connection.Gas refrigerant is conveyed to refrigerant input pipe through triple valve 18 is most of from the tank of vacuum tank 8 outlet 11 again
1, fraction is conveyed to cooling medium inlet pipe 16, so that it is cold so that gas refrigerant is entered cooling in each cold chamber heat exchanger 30
Chamber 25, so that the main each cold chamber 25 for exerting gloomy compressor exerted in gloomy compressor set 2 maintains a lower temperature.From cold chamber
The gas refrigerant that heat exchanger 30 comes out through cooling medium outlet 17 be conveyed to it is auxiliary exert gloomy compressor set 15, it is auxiliary to exert gloomy compressor
Gloomy compressor is exerted sequentially gradually just being transmitted back to vacuum tank 8 after gas refrigerant adherence pressure in group 15.Preferably, hot chamber changes
Hot device 29 and cold chamber heat exchanger 30 are fin-tube heat exchanger 41, are miniature fin-tube heat exchanger, with reference to Fig. 6, wing
The bend pipe 42 of Flat-tube type heat-exchanger 41 including several parallelly distribute ons and several layers are around the copper fin between all bend pipes 42
43.One end of all bend pipes 42 is the import of fin-tube heat exchanger 41, and the other end of all bend pipes 42 changes for fin tube type
The outlet of hot device 41.
With reference to Fig. 3 and Fig. 4, it is preferable that the base station body 22 that every group of master exerts gloomy compressor set 2 is provided with an epicoele 31 and once
Capping is fixed by bolt by the cover board of base station body 22 in chamber 33, epicoele 31.Every group of master exerts all of gloomy compressor set 2 and exerts
Gloomy compressor is set in epicoele 31, and cavity of resorption 33 is provided with a cavity of resorption import 32 and cavity of resorption outlet 34, and cavity of resorption 33 passes through a folding
Flowing plate 35 is separated into a flow channel 36 and a flow pass 37, and cavity of resorption import 32 is connected to flow channel 36, and cavity of resorption goes out
Mouth 34 is connected to flow pass 37.Cavity of resorption import 32 is connect with cooling medium inlet pipe 16, and cavity of resorption outlet 34 goes out with cooling medium
Mouth pipe 17 connects, and the import of each cold chamber heat exchanger 30 is connected to by an air inlet 38 with flow channel 36, and each cold chamber changes
The outlet of hot device 30 is connected to by a venthole 39 with flow pass 37.It is in when master exerts the gloomy compressor of exerting in gloomy compressor set 2
When several row's parallelly distribute ons, just S-shaped sigmoid is distributed in cavity of resorption 33 for flow channel 36 and flow pass 37.Cooling medium into
Mouth pipe 16 passes through each air inlet 38 correspondence and enters after gas refrigerant is conveyed into from cavity of resorption import 32 to flow channel 36
In each cold chamber heat exchanger 30, the gas refrigerant after exchanging heat in cold chamber heat exchanger 30 is discharged to flow pass from venthole 39
37, then concentrate and transfer out from cavity of resorption outlet 34 to cooling medium outlet 17.The main base station body 22 for exerting gloomy compressor set 2 is by setting
The cavity of resorption 33 set concentrates conveying gas refrigerant to each cold chamber heat exchanger 30, so as to simplify structure.Gloomy pressure is exerted due to auxiliary
The cold chamber 25 for exerting gloomy compressor in contracting unit 15 does not need that cold chamber heat exchanger 30 is arranged, therefore the auxiliary base station for exerting gloomy compressor set 15
Body 22 does not need setting cavity of resorption 33.
It continues to refer to figure 1, it is preferable that a refrigerant heat exchanger 19 is provided between throttle mechanism 5 and cooler 4,
It can be micro-channel heat exchanger.The outlet of the heat passage of the import and cooler 4 of the heat passage of refrigerant heat exchanger 19 connects
It connects, the import of throttle mechanism 5 is connect with the outlet of the heat passage of refrigerant heat exchanger 19, and the cold flow of refrigerant heat exchanger 19 is logical
The import in road is connect with the tank of vacuum tank 8 outlet 11, and cooling medium inlet pipe 16 and refrigerant input pipe 1 pass through triple valve 18
It is connect jointly with the outlet in the cold flow channel of refrigerant heat exchanger 19.It can use vacuum tank by adding refrigerant heat exchanger 19
The low temperature low pressure gas refrigerant of 8 outflows exchanges heat with the medium temperature high-pressure gas refrigerant before throttle mechanism 5, makes medium temperature high pressure
Gas refrigerant is pre-chilled before throttling, guarantees it in throttle mechanism 5 by abundant reducing pressure by regulating flow and cooling；On the other hand, make low
There is certain overheat before the main import 23 for exerting gloomy compressor set 2 into master in warm low pressure refrigerant, to improve intake air temperature, into
And increase the pressure of the main primary outlet 24 for exerting gloomy compressor set 2, and reduce each wasted work for exerting gloomy compressor.In short, the system of adding
Cryogen heat exchanger 19 can improve the economy of system circulation, improve refrigerating efficiency.
The operation principle of the present invention is that:
It is a kind of gas boost device based on thermal transpiration effect due to exerting gloomy compressor, when master exerts in gloomy compressor set 2
The hot chamber 26 for exerting gloomy compressor by hot chamber heat exchanger 29 using carry (useless) hot medium more than industry maintain it is higher
Temperature, and when cold chamber 25 maintains lower temperature using the gas refrigerant of low-temp low-pressure by cold chamber heat exchanger 30, if this
When gas refrigerant molecule mean free path be not less than and exert the aperture in the hole on the porous interlayer 27 of gloomy compressor and just can expire
The condition of thermal transpiration effect occurs for foot, and gas refrigerant just moves to the higher hot chamber 26 of temperature from the lower cold chamber 25 of temperature,
So that gas refrigeration agent molecule is assembled and pressure rising in hot chamber 26, exerting gloomy compressor plural serial stage can be improved compression ratio,
Gas refrigerant is set to obtain elevated pressures, but the temperature of gas compressed refrigerant is almost unchanged, this makes master exert gloomy compressor
Group 2 can substitute the increasing apparatus such as traditional compressor, working medium pump, and master exerts gloomy compressor set 2 and passes through preparation input pipe 1 constantly
Gas refrigerant is extracted out and boosted from vacuum tank 8, then cooler 4 is conveyed to from refrigerant efferent duct 3 and is cooled down, therefore
Master exerts gloomy compressor set 2 and also acts as the effect vacuumized to vacuum tank 8, so that gas refrigerant is in system internal circulation flow.It is cold
But device 4 is cooled down to from the main gas refrigerant for exerting the high temperature and pressure being discharged in gloomy compressor set 2, by gas refrigerant
State is changed into medium temperature high pressure.The gas refrigerant of medium temperature high pressure is first carried out before throttling after being flowed into refrigerant heat exchanger 19
It is pre-chilled in advance, enters back into and carry out decrease temperature and pressure in throttle mechanism 5.The low temperature low pressure gas refrigerant come out from throttle mechanism 5
It enters in refrigerating medium heat exchanger 6 after cooling down to refrigerating medium, then is flowed into vacuum tank 8 by vacuum valve 12, and to refrigerating
Further cooling is made in agent, and refrigerating medium is just obtained enough cooling capacity, used with supply and demand awkward silence at a meeting.From the tank of vacuum tank 8 outlet 11
Low temperature low pressure gas refrigerant out is conveyed to system after the preheating of refrigerant heat exchanger 19, by triple valve 18 is most of again
Cryogen input pipe 1, fraction are conveyed to cooling medium inlet pipe 16.Cooling medium inlet pipe 16 is low temperature low pressure gas refrigerant
After being transported to the flow channel 36 of the cavity of resorption 33 of the main base station body 22 for exerting gloomy compressor set 2, then pass through the entrance of each air inlet 38
It exerts each cold chamber 25 for exerting gloomy compressor in gloomy compressor set 2 to master in each cold chamber heat exchanger 30 to cool down, then
This portion gas refrigerant flows to flow pass 37 from venthole 39 again, and is conveyed to through cooling medium outlet 17 and auxiliary exerts gloomy pressure
The main-inlet of the base station body of contracting unit 15, it is auxiliary exert in gloomy compressor set 15 each exert gloomy compressor by thermal transpiration effect sequentially
The lower gas refrigerant of the pressure being discharged from cooling medium outlet 17 is increased into pressure, so that gas refrigerant can flow back
In the vacuum tank 8 relatively high to pressure, circulated to realize.
Gloomy compressor of exerting of the invention is modularized design, and construction is fairly simple, and the hot chamber 26 for exerting gloomy compressor passes through heat
Chamber heat exchanger 29 utilizes (useless) heat more than industry to maintain higher temperature, can directly combine with industrial processes,
With make full use of industrially generate more than (useless) heat, do not need the too many high-grade electric energy of consumption or mechanical energy.Refrigerating medium exists
Can be conveyed to after refrigerating medium heat exchanger 6 and the cooling capacity of 8 interior suction getter cryogen of vacuum tank release needs awkward silence at a meeting to be used, thus
It is that process flow and construction suitable for producing environment etc. provide required cooling capacity that conventional refrigerant unit, which can partially be substituted,.Of the invention
Structure is simple, and whole system movement-less part does not need lubricating oil, reliable for operation, and the refrigeration of whole system is higher, refrigeration
Amount can be adjusted according to actual needs.In addition, natural environmental-protective can be used gas refrigerant of the invention and chemical property is steady
Fixed gas.Gas (such as air, nitrogen) is as the existing very long history of refrigerant, gas refrigerant and conventional refrigerants
(such as ammonia, HFCs, HCFCs) is compared, cheap, is easy to get, completely non-hazardous to human body and environment.
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 (7)
1. a kind of gas refrigeration system based on thermal transpiration effect characterized by comprising
Refrigerant input pipe；
At least one set master exerts gloomy compressor set, and master described in every group exerts gloomy compressor set and includes:
Base station body is provided with a main import and a primary outlet；The main import is connect with the refrigerant input pipe；And
Several exert gloomy compressor, and it includes cold chamber, hot chamber, porous interlayer and interface channel that each this, which exerts gloomy compressor, described
Separated between cold chamber and the hot chamber by the porous interlayer, the aperture in the hole on the porous interlayer is not more than gas refrigeration
The molecule mean free path of agent, the import of the interface channel are connect with the outlet of the hot chamber；Several this exert gloomy compressor
It is sequentially disposed in series and connects in the import and the main import in the base station body, exerting the cold chamber of gloomy compressor described in first
It connects, the import of the cold chamber of gloomy compressor and the outlet of the previous interface channel for exerting gloomy compressor is exerted described in the latter
Connection, the outlet that the interface channel of gloomy compressor is exerted described in the last one is connect with the primary outlet；
Refrigerant efferent duct, the primary outlet of the main base station body for exerting gloomy compressor set described in every group are connect with the refrigerant efferent duct；
Cooler, the import of heat passage are connect with the refrigerant efferent duct；
Throttle mechanism, import are connect with the outlet of the heat passage of the cooler；
Vacuum tank is provided with the first tank import, the second tank import and tank outlet, the first tank import and passes through a vacuum valve
It is connect with the outlet of the throttle mechanism；
Refrigerating medium heat exchanger tube is set in the vacuum tank, and one end of the refrigerating medium heat exchanger tube and a refrigerating medium input pipe connect
It connects, and the other end of the refrigerating medium heat exchanger tube is connect with a refrigerating medium efferent duct；
Auxiliary to exert gloomy compressor set, structure is identical as the structure that the master exerts gloomy compressor set, the auxiliary base for exerting gloomy compressor set
The primary outlet of stage body is connect with the second tank import；
Hot chamber heat exchanger, the main all heat for exerting gloomy compressor exerted in gloomy compressor set are intracavitary described in every group is each provided with one
The hot chamber heat exchanger；The auxiliary all heat for exerting gloomy compressor exerted in gloomy compressor set are intracavitary to be also each provided with the heat
Chamber heat exchanger；The import of all hot chamber heat exchangers is connect with a heat-carrying agent inlet tube；All hot chamber heat exchange
The outlet of device is connect with a heat-carrying agent outlet；And
Cold chamber heat exchanger, described in every group it is main exert in gloomy compressor set all described exert the described of gloomy compressor and cold intracavitary set
It is equipped with the cold chamber heat exchanger；The import of all cold chamber heat exchangers is connect with a cooling medium inlet pipe, described
Cooling medium inlet pipe and the refrigerant input pipe are exported with the tank of the vacuum tank jointly by a triple valve to be connected
It connects；The outlet of all cold chamber heat exchangers is connect with a cooling medium outlet, and the cooling medium outlet with
The main import of the auxiliary base station body for exerting gloomy compressor set connects.
2. the gas refrigeration system according to claim 1 based on thermal transpiration effect, which is characterized in that the porous interlayer
For porous membrane.
3. the gas refrigeration system according to claim 1 based on thermal transpiration effect, which is characterized in that the throttle mechanism
For throttle valve or expanding machine.
4. the gas refrigeration system according to claim 1 based on thermal transpiration effect, which is characterized in that the hot chamber heat exchange
Device and the cold chamber heat exchanger are fin-tube heat exchanger.
5. the gas refrigeration system according to claim 1 based on thermal transpiration effect, which is characterized in that master described in every group exerts
The base station body of gloomy compressor set is provided with an epicoele and a cavity of resorption, main described in every group to exert all of gloomy compressor set and exert gloomy compression
Machine is set to described intracavitary；The cavity of resorption is provided with a cavity of resorption import and cavity of resorption outlet, and the cavity of resorption passes through a baffle plate
It is separated into a flow channel and a flow pass, the cavity of resorption import is connected to the flow channel, the cavity of resorption outlet
It is connected to the flow pass；The cavity of resorption import is connect with the cooling medium inlet pipe, cavity of resorption outlet with it is described cold
But media outlet pipe connects；The import of each cold chamber heat exchanger is connected to by an air inlet with the flow channel, and every
The outlet of a cold chamber heat exchanger is connected to by a venthole with the flow pass.
6. the gas refrigeration system according to claim 1 based on thermal transpiration effect, which is characterized in that the throttle mechanism
Be provided with a refrigerant heat exchanger between the cooler, the import of the heat passage of the refrigerant heat exchanger with it is described
The outlet of the heat passage of cooler connects, and the heat passage of the import of the throttle mechanism and the refrigerant heat exchanger goes out
Mouth connection；The import in the cold flow channel of the refrigerant heat exchanger and the tank of the vacuum tank are exported and are connected, and described cold
But medium inlet and the refrigerant input pipe by the triple valve jointly with the cold flow channel of the refrigerant heat exchanger
Outlet connection.
7. the gas refrigeration system according to claim 1 based on thermal transpiration effect, which is characterized in that the refrigerating medium is defeated
Enter pipe to connect by a refrigerating medium heat exchanger with the refrigerating medium heat exchanger tube, the import of the heat passage of the refrigerating medium heat exchanger
It is connect with the refrigerating medium input pipe, and the outlet of the heat passage of the refrigerating medium heat exchanger and the refrigerating medium heat exchanger tube
One end connection；The import in the cold flow channel of the refrigerating medium heat exchanger is connect with the outlet of the throttle mechanism, first tank
Import is connect by the vacuum valve with the outlet in the cold flow channel of the refrigerating medium heat exchanger.
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| CN109237856B (en) * | 2018-07-18 | 2021-02-05 | 广西大学 | Pressure reduction refrigeration system using Knudsen pump |
| CN109140866B (en) * | 2018-07-18 | 2020-11-03 | 广西大学 | Vacuum precooling device using Knudsen pump |
| CN109269146B (en) * | 2018-07-18 | 2020-06-16 | 广西大学 | Vacuum refrigerating system using Knudsen pump |
| CN109630378A (en) * | 2018-11-26 | 2019-04-16 | 广西大学 | A kind of Zhu Tang workshop section pumped vacuum systems based on thermal transpiration effect |
| CN110897227B (en) * | 2019-12-17 | 2021-07-20 | 广西大学 | Clothing capable of instantly and continuously preparing oxygen-enriched air for health care and outdoor activities |
| CN113418298A (en) * | 2021-07-02 | 2021-09-21 | 河北工业大学 | Heat energy driven steam compression type heat pump hot water system |
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