CN107088442A - A kind of low energy consumption ultralow temperature experimental system and method based on time device for cooling - Google Patents
A kind of low energy consumption ultralow temperature experimental system and method based on time device for cooling Download PDFInfo
- Publication number
- CN107088442A CN107088442A CN201710145544.0A CN201710145544A CN107088442A CN 107088442 A CN107088442 A CN 107088442A CN 201710145544 A CN201710145544 A CN 201710145544A CN 107088442 A CN107088442 A CN 107088442A
- Authority
- CN
- China
- Prior art keywords
- gas
- temperature
- low
- cooling
- energy consumption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/02—Laboratory benches or tables; Fittings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1894—Cooling means; Cryo cooling
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The present invention relates to a kind of based on the low energy consumption ultralow temperature experimental system and method for returning device for cooling：Including source of the gas (1), flow regulator (2), return cooler (3), cryogenic heat exchanger (4), rectification section (5), experimental section (6) and time cold pipeline (7), it is characterised in that：Cooler (3) is installed back before the cryogenic heat exchanger (4) of experimental system, the gas exported with source of the gas (1) as cooling medium using experimental section (6) low exit temperature gas in cooler (3) is returned to be exchanged heat, Incoming gas is previously cooled to lower temperature, the gas for going back to cooler (3) outlet is further cooled in cryogenic heat exchanger (4) afterwards, to provide the import condition of ultralow temperature of experimental section (6) requirement.The present invention disclosure satisfy that the requirement of ultralow temperature experimental section (6) import inlet flow conditions, and the energy consumption and low-temperature receiver consumption that can be greatly lowered in the course of work, can be widely applied to the related experiment in various low temperature fields.
Description
Technical field
The present invention relates to a kind of based on the low energy consumption ultralow temperature experimental system and method for returning device for cooling, belong to experimental technique neck
Domain.
Background technology
Low temperature environment is in military projects such as Aero-Space, bio-pharmaceuticals, cryotronics, coating operation and semiconductor manufacturing and civilian
There is extensive demand in field, for equipment working condition at low ambient temperatures in research association area and improve equipment
Performance is tested, it is necessary to simulate actual low-temperature working environment to it.Accordingly, it would be desirable to build related experiment platform to provide experiment
Required low temperature environment.But existing experimental bench, due to lacking effective technological means, generally existing low-temperature receiver consumption is big, the energy
The low defect of utilization rate.In addition, existing low temperature test platform is all directly to be expelled directly out the Cryogenic air of experimental section, not only make
Into the waste of cold, exhaust apparatus is also more complicated.
The content of the invention
The technology of the present invention solves problem：The deficiencies in the prior art are overcome to surpass there is provided a kind of based on the low energy consumption for returning device for cooling
Low temperature test system and method, efficiently solves existing cryonetic wind tunnel full utilization low temperature cold source cold to the progress of wind-tunnel inlet gas
But experimental section low exit temperature gas is directly discharged and the problem of the energy utilization rate brought is low, low-temperature receiver consumption is big, also letter
The tapping equipment of existing wind tunnel experiment section low exit temperature gas is changed.
The technology of the present invention solution：A kind of low energy consumption ultralow temperature experimental system based on time device for cooling：Including source of the gas
(1), flow regulator (2), time cooler (3), cryogenic heat exchanger (4), rectification section (5), experimental section (6), time cold pipeline (7),
It is characterized in that：Cooler (3) is installed back before the cryogenic heat exchanger (4) of experimental system, returns in cooler (3) and utilizes experimental section (6)
The gas that low exit temperature gas is exported as cooling medium with source of the gas (1) is exchanged heat, and Incoming gas is previously cooled to relatively low
Temperature, afterwards further cools the gas for going back to cooler (3) outlet in cryogenic heat exchanger (4), to provide experimental section (6) requirement
Import condition of ultralow temperature.The present invention disclosure satisfy that the requirement of ultralow temperature experimental section (6) import inlet flow conditions, and can significantly drop
Energy consumption and low-temperature receiver consumption in the low course of work, can be widely applied to the related experiment in various low temperature fields.
The course of work of experimental bench is：The high pressure dry gas stream that source of the gas (1) is provided adjusts flow through flow regulator (2)
To after design load, temperature is set to drop to a certain degree into returning in cooler (3), then by cryogenic heat exchanger (4) to the further drop of gas
Temperature, reaches design temperature.Gas enters the rectification section (5) with multilayer gauze and honeycomb after cryogenic heat exchanger (4) outflow
Rectified action after, air-flow becomes stable and uniform, performance of the observation experiment part in low temperature environment in experimental section (6).
The cryogenic gas of experimental section (6) outlet is flowed into back in cooler (3) by returning cold pipeline (7) again, is carried out with source of the gas (1) exit gas
It is discharged into after heat exchange in air.
The condition of ultralow temperature refers to -120 DEG C~-30 DEG C of low temperature environment；Source of the gas (1) can using high-pressure bottle or from
Heart blower fan or axial flow blower, and gas drying apparatus is connect in high-pressure bottle/centrifugation/axial flow blower outlet, to reduce gas dew
Point prevents that frosting blocks heat exchanger in cooler (3) and cryogenic heat exchanger (4) is returned；Flow regulator (2) can be using regulation
Valve is controlled；Cryogenic heat exchanger (4) can use liquid nitrogen heat exchanger.Rectification section (5) is using the knot with multilayer gauze and honeycomb
Structure.
Advantage of the invention compared with existing low temperature test platform：
1. the present invention installs back cooler (3) before cryogenic heat exchanger (4), return low using experimental section (8) outlet in cooler (3)
The gas that wet body is exported as cooling medium with source of the gas (1) is exchanged heat, and Incoming gas is previously cooled into lower temperature, it
The gas for going back to cooler (3) outlet is further cooled in cryogenic heat exchanger (4) afterwards, to provide the import of experimental section (6) requirement
Condition of ultralow temperature, thus efficiently solve existing cryonetic wind tunnel full utilization low temperature cold source wind-tunnel inlet gas is cooled down and
Experimental section (6) low exit temperature gas is directly discharged to the problem of energy utilization rate brought is low, low-temperature receiver consumption is big.
Experimental section 2. (6) low exit temperature gas is being raised in returning cooler (3) with temperature after the heat exchange of source of the gas (1) exit gas,
So as to simplify existing wind tunnel experiment section (6) low exit temperature gas discharging apparatus.
3. the present invention disclosure satisfy that the requirement of ultralow temperature experimental section (6) import inlet flow conditions, and work can be greatly lowered
During energy consumption and low-temperature receiver consumption, can be widely applied to the related experiment in various low temperature fields.
4. low-temperature receiver consumption of the present invention is low, capacity usage ratio is high, and exhaust apparatus is simple, and working range is wide, can normal work
Flow, pressure limit are big, and application field is wide, with very strong adaptability.
Brief description of the drawings
Fig. 1 is principle schematic diagram of the present invention；
Fig. 2 is a kind of typical structure schematic diagram based on the low energy consumption ultralow temperature experimental system for returning device for cooling；
Specific embodiment
As shown in figure 1, the present invention is a kind of based on the low energy consumption ultralow temperature experimental system for returning device for cooling, including source of the gas 1, flow
Adjusting means 2, time cooler 3, cryogenic heat exchanger 4, rectification section 5, experimental section 6, time cold pipeline 7.Source of the gas 1 first produces air-flow, air-flow
Enter back precooling in cooler 3 after flow regulator 2 again, enter back into cryogenic heat exchanger 4 and cool down afterwards.Air-flow is rectified
Enter experimental section 6 after 5 rectifications of section, the gas that experimental section 6 is discharged passes through back cold pipeline 7 and flows into back the cold end of cooler 3 works off one's feeling vent one's spleen with source of the gas 1
Discharged after body heat exchange.
Certain experiment will test an experimental piece in incoming-flow pressure 0.217Mpa, temperature 233.9K, the performance under speed 6.9m/s,
Experimental system is arranged as shown in Fig. 2 source of the gas 1 is supplied using centrifugal blower 1, is followed by drying machine 8, and flow regulator 2 is using adjusting
Section valve 2 is adjusted, and the flow of air is observed with Venturi tube 9.Honeycomb 10 is installed in rectification section 5 and two layers of gauze 11 is used for water conservancy diversion
And reduce air turbulence degree.The sectional area of experimental section 6 is set to 0.0625m2, experiment is calculated according to pressure, temperature, the relation of density
6 current densities of section are 3.24kg/m3, the flow according to needed for being calculated the relation of flow, speed and density is 1.4kg/s.Control
Regulating valve 2 makes flow reach 1.4kg/s, so that the speed needed for experimental section 6 reaches desin speed 6.9m/s.Returning, cooler 3 is cold
Bring out mouth and pressure-reducing valve 13 is installed, regulation pressure-reducing valve 13 makes the pressure of experimental section 6 reach 0.217Mpa.The low-temperature receiver of cryogenic heat exchanger 4
Using liquid nitrogen, temperature of incoming flow is controlled by adjusting the flow of liquid nitrogen, and air-flow is after returning cooler 3, and temperature is down to about by 300K
250K, then liquid nitrogen flow is adjusted to about 0.13kg/s, so that it may install and survey before reaching the temperature required by experimental piece, experimental section 6
Section 12 is measured, the inside of measuring section 12 arrangement temperature, pressure, velocity sensor are used for measuring to flow parameter, and then observation experiment part exists
Performance under this inlet flow conditions.
Non-elaborated part of the present invention belongs to the known technology of those skilled in the art.
For one of ordinary skill in the art, it is also possible to make other with reference to embodiment described above
Embodiment.All embodiments above are all exemplary rather than limitation.All power in the present invention
Profit requires that the modification within the essence of technical scheme belongs to its scope claimed.
Claims (8)
1. it is a kind of based on the low energy consumption ultralow temperature experimental system for returning device for cooling, including：It is source of the gas (1), flow regulator (2), low
Warm heat exchanger (4), rectification section (5), experimental section (6) and time cold pipeline (7), it is characterised in that：Installed before cryogenic heat exchanger (4)
Cooler (3) is returned, the gas exported in cooler (3) by the use of experimental section (6) low exit temperature gas as cooling medium and source of the gas (1) is returned
Exchanged heat, Incoming gas is previously cooled to lower temperature, cooler (3) outlet will be gone back in cryogenic heat exchanger (4) afterwards
Gas further cools, to provide the import condition of ultralow temperature of experimental section (6) requirement.
2. it is according to claim 1 based on the low energy consumption ultralow temperature experimental system for returning device for cooling, it is characterised in that：It is described compared with
Low temperature is -10 DEG C~-50 DEG C.
3. it is according to claim 1 based on the low energy consumption ultralow temperature experimental system for returning device for cooling, it is characterised in that：It is described super
Low temperature is -120 DEG C~-30 DEG C.
4. it is according to claim 1 based on the low energy consumption ultralow temperature experimental system for returning device for cooling, it is characterised in that：Described
Source of the gas (1) uses high-pressure bottle or centrifugal blower or axial flow blower, and connects gas in high-pressure bottle/centrifugation/axial flow blower outlet
Body drying equipment, to reduce gas dew point, prevents the frosting in cooler (3) and cryogenic heat exchanger (4) is returned.
5. it is according to claim 1 based on the low energy consumption ultralow temperature experimental system for returning device for cooling, it is characterised in that：The stream
Quantity regulating device (2) uses regulating valve.
6. it is according to claim 1 based on the low energy consumption ultralow temperature experimental system for returning device for cooling, it is characterised in that：It is described low
Warm heat exchanger (4) uses liquid nitrogen heat exchanger.
7. it is according to claim 1 based on the low energy consumption ultralow temperature experimental system for returning device for cooling, it is characterised in that：It is described whole
Section (5) is flowed using the structure with multilayer gauze and honeycomb.
8. it is a kind of based on the low energy consumption ultralow temperature experimental method for returning device for cooling, it is characterised in that：Step is：What source of the gas (1) was provided
After flow is transferred to design load by high pressure dry gas stream through flow regulator (2), into returning in cooler (3), utilize experimental section (6)
The gas that low exit temperature gas is exported as cooling medium with source of the gas (1) is exchanged heat, and temperature is dropped to lower temperature, then by low
Warm heat exchanger (4) reaches the import condition of ultralow temperature of experimental section (6) requirement to the further cooling of gas；Gas is from low-temperature heat exchange
Enter after device (4) outflow after the rectified action of rectification section (5), air-flow becomes stable and uniform, and observation is real in experimental section (6)
Test performance of the part in low temperature environment；The ultralow temperature gas of experimental section (6) outlet flows into back cooler by returning cold pipeline (7) again
(3) in, it is discharged into after being exchanged heat with source of the gas (1) exit gas in air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710145544.0A CN107088442B (en) | 2017-03-13 | 2017-03-13 | A kind of low energy consumption ultralow temperature experimental system and method based on time device for cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710145544.0A CN107088442B (en) | 2017-03-13 | 2017-03-13 | A kind of low energy consumption ultralow temperature experimental system and method based on time device for cooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107088442A true CN107088442A (en) | 2017-08-25 |
| CN107088442B CN107088442B (en) | 2019-04-09 |
Family
ID=59649245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710145544.0A Active CN107088442B (en) | 2017-03-13 | 2017-03-13 | A kind of low energy consumption ultralow temperature experimental system and method based on time device for cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107088442B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976097A (en) * | 2017-12-18 | 2018-05-01 | 刘国斌 | A kind of system that air storage waste heat is pressed in use |
| CN115582150A (en) * | 2022-11-03 | 2023-01-10 | 江苏拓米洛环境试验设备有限公司 | Air duct structure and environmental test chamber |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503505A (en) * | 2014-12-02 | 2015-04-08 | 兰州华宇航天技术应用有限责任公司 | Back heating type gas closed circulation refrigeration heating and temperature adjustment system |
| CN105606386A (en) * | 2015-12-23 | 2016-05-25 | 北京航空航天大学 | Test bench used for high precooling compact fast heat exchanger |
-
2017
- 2017-03-13 CN CN201710145544.0A patent/CN107088442B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503505A (en) * | 2014-12-02 | 2015-04-08 | 兰州华宇航天技术应用有限责任公司 | Back heating type gas closed circulation refrigeration heating and temperature adjustment system |
| CN105606386A (en) * | 2015-12-23 | 2016-05-25 | 北京航空航天大学 | Test bench used for high precooling compact fast heat exchanger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976097A (en) * | 2017-12-18 | 2018-05-01 | 刘国斌 | A kind of system that air storage waste heat is pressed in use |
| CN115582150A (en) * | 2022-11-03 | 2023-01-10 | 江苏拓米洛环境试验设备有限公司 | Air duct structure and environmental test chamber |
| CN115582150B (en) * | 2022-11-03 | 2024-01-16 | 江苏拓米洛高端装备股份有限公司 | Air duct structure and environment test box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107088442B (en) | 2019-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104089328B (en) | Air-conditioning system and the method that air-conditioning system is controlled | |
| CN107200147A (en) | Jelly cloud icing temperature control simulation laboratory suitable for middle-size and small-size aircraft | |
| CN109004250B (en) | Device and method for rapidly adjusting temperature and humidity of pipeline gas | |
| CN206984424U (en) | Jelly cloud icing temperature control simulation laboratory suitable for middle-size and small-size aircraft | |
| CN104568369B (en) | A kind of air heat exchanger wind tunnel testing system | |
| CN104503505A (en) | Back heating type gas closed circulation refrigeration heating and temperature adjustment system | |
| CN112129136B (en) | Low-temperature cold air generating device capable of stabilizing temperature and pressure and control method | |
| CN110440505A (en) | A kind of wind-tunnel temperature control system of Two-way Cycle refrigerating medium Collaborative Control | |
| CN104571183A (en) | Backheating gas mixed circulating refrigeration, heating and temperature adjustment system | |
| CN107088442B (en) | A kind of low energy consumption ultralow temperature experimental system and method based on time device for cooling | |
| CN108386953A (en) | A kind of control system and adjusting method generating constant humiture gas | |
| CN208091081U (en) | It is a kind of can fast cooling vacuum drying oven | |
| CN206610182U (en) | A kind of device of control high/low temperature circulation change and constant temperature | |
| CN102539108B (en) | Energy-saving wind tunnel for enthalpy potential method experiment device | |
| CN107940853A (en) | Gas nitrogen thermostat units for heat sink thermoregulating system | |
| CN108181345A (en) | A kind of device and method for being used to test condensed water formation | |
| CN110332762A (en) | Gas nitrogen cycle method for regulating temperature and system | |
| CN113006881B (en) | Blade leading edge double-cyclone impact cooling experiment test system and method | |
| CN110131913A (en) | A kind of supercritical carbon dioxide cryogenic treating process and its device and gas reclaiming system | |
| CN213899191U (en) | Cooling system of wind generating set and wind generating set | |
| CN201476395U (en) | Multi-functional air cooler | |
| CN106020277A (en) | Work temperature control method and casing of low-temperature friction wear machine | |
| CN205861296U (en) | Combustible refrigerant simulated leakage detecting system | |
| CN106091473B (en) | A kind of big warm area refrigerating plant of satellite normal pressure heat test | |
| CN116972340A (en) | Integrated management system and method for liquid hydrogen aircraft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |