CN207729830U - A kind of hot and cold air ratio mixing high-precision Quick temperature adjustment - Google Patents
A kind of hot and cold air ratio mixing high-precision Quick temperature adjustment Download PDFInfo
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- CN207729830U CN207729830U CN201721742320.XU CN201721742320U CN207729830U CN 207729830 U CN207729830 U CN 207729830U CN 201721742320 U CN201721742320 U CN 201721742320U CN 207729830 U CN207729830 U CN 207729830U
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Abstract
The utility model belongs to gas fast regulating temperature application field.A kind of hot and cold air ratio mixing high-precision Quick temperature adjustment is provided, including：Heating device 1, triple valve 2；1 input terminal of heating device is connect with compressed air source, and 1 output end of heating device is connect with an input terminal of triple valve 2；Another input terminal of triple valve 2 is connect with compressed air source, and the output end of triple valve 2 is connect with aircraft inerting unit.1 output end of heating device is also connect with emptying solenoid valve 3.The first safety valve 4 is equipped between 1 output end of heating device and an input terminal of triple valve 2.Compressed air source front end is equipped with the second safety valve 5.The utility model overcomes the thermal inertia of pipeline at output system, to realize fast temperature regulative mechanism.
Description
Technical field
The invention belongs to gas fast regulating temperature application fields.
Background technology
Engine bleed be carry out the flight parameter boundary condition that must simulate of aircraft fuel system ground simulation test it
One, since aircraft fuel system increases airborne nitrogen-making device, the inerting performance of the size of bleed temperature to inerting unit
It produces bigger effect, for the engine bleed state of more real simulation inerting unit, ground simulation test is in addition to simulating bleed
It outside pressure, while must be heated to introducing inerting unit gas, with the size of simulated engine bleed temperature.
Carriage angle need to be simulated due to carrying out Fuel System Ground Simulation Test, simultaneously because fuel system testpieces fires
Aviation kerosine is carried in fuel tank, safety is the matter of utmost importance that fuel oil platform considers, therefore heating device cannot be mounted on turntable, and
Temperature simulation point is airborne nitrogen-making device gasinlet temperature, causes heating device in this way to distance between airborne nitrogen-making device
Farther out, thermal inertia is larger.On the other hand, aircraft engine oil consumption changes with the variation of flight profile, mission profile, in small oil consumption state,
Fuel system is also small therewith to engine bleed amount, and the state that this thermal inertia is big, throughput is small is quick to gas high-precision
Temperature adjustment brings huge challenge.
Currently, the gas fast regulating temperature technology under the larger application scenarios of heating equipment rear end thermal inertia, it is general use with
Lower two ways：
1, gas flow is sufficiently large when being enough to overcome rear end thermal inertia, and high-power heating coordinates high-power refrigeration to carry out fast velocity modulation
Determine gas temperature.Disadvantage：1. large flow-rate gas stream is needed, to ensure that its thermal capacity is enough to overcome the thermal inertia of rear end；2. a large amount of energy
Source consumes；3. must be introduced into high-power refrigeration link, the complexity of system is increased.
2, rear end thermal inertia is reduced：Shorten rear end pipe-line system, reducing pipeline quality, (pipeline quality is bigger, thermal capacity
It is bigger) within the thermal inertia value that can overcome to enough small flows.Disadvantage：1. not being suitable for rear end needs answering for long pipe road
With scene, there is harsh requirement to ductwork design；2. the higher occasion of pressure can not be applied, because pressure is higher, pipeline
Wall thickness just needs to increase, and thermal inertia accordingly increases, and forms the contradiction that can not be reconciled.
Invention content
Goal of the invention
The present invention provides a kind of hot and cold air ratio mixing high-precision Quick temperature adjustment, overcomes pipeline at output system
Thermal inertia, to realize fast temperature regulative mechanism.
Technical solution
A kind of hot and cold air ratio mixing high-precision Quick temperature adjustment, including：
Heating device 1, triple valve 2；
1 input terminal of heating device is connect with compressed air source, an input terminal of 1 output end of heating device and triple valve 2
Connection；Another input terminal of triple valve 2 is connect with compressed air source, and the output end of triple valve 2 is connect with aircraft inerting unit.
1 output end of heating device is also connect with emptying solenoid valve 3.
The first safety valve 4 is equipped between 1 output end of heating device and an input terminal of triple valve 2.
Compressed air source front end is equipped with the second safety valve 5.
Advantageous effect
1. suitable for the occasion of any required air temperature control, the rear end especially suitable for flow small (i.e. specific heat capacity is small)
Thermal inertia is big, requires the technical applications that temperature-responsive is fast, accurately tracks.
2. this is technically simple reliable, technical risk and cost-effective is reduced, larger economic benefit is brought.
3. being more energy-saving and environmentally friendly, larger economical, societal benefits are brought.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Specific implementation mode
Gas flow is small, rear end thermal inertia is big and requires quickly to change gas temperature to meet, or meet gas temperature by
Time/temp curve accurately tracks, and the influence of device specific heat capacity itself is reduced or avoided, and proposes a kind of hot and cold air ratio mixing
High-precision Quick temperature adjustment, as shown in Figure 1, including：
Heating device 1, triple valve 2；
1 input terminal of heating device is connect with compressed air source, an input terminal of 1 output end of heating device and triple valve 2
Connection；Another input terminal of triple valve 2 is connect with compressed air source, and the output end of triple valve 2 is connect with aircraft inerting unit.
In use, compressed air source heats the input terminal be used as hot-air and be input to triple valve 2 by heating device 1 all the way, separately
Another input terminal of triple valve 2 is input to as cold air all the way, adjusting hot and cold air ratio by triple valve 2 reaches needs
Gas temperature.
1 output end of heating device is also connect with emptying solenoid valve 3.For being managed between 2 input terminal of heating device 1 and triple valve
The discharge of road preheated air.
The first safety valve 4 is equipped between 1 output end of heating device and an input terminal of triple valve 2.
Compressed air source front end is equipped with the second safety valve 5.
The present invention is within the temperature range of needing to adjust, the two strands of benchmark constant temperature sources accurately controlled using high and low temperature, base
The thermal capacity of quasi- constant temperature source itself is as high as possible, by heat gas by two benchmark constant temperature sources, is mixed in a certain ratio to obtain
The gas temperature needed.
The change rate of gas temperature determines by mixed proportion valve, and gas mixing temperature is by two gas flows and respective
Initial temperature determines.
The control accuracy of gas temperature determines by sensor and a reference source temperature fluctuation, and the precision of sensor can be with
Reach very high precision, the thermostatic control of benchmark source temperature is also easily realized.It is mixed by changing by two strands of gases of steady temperature
Composition and division in a proportion example can quickly track the gas setting temperature of needs, when input air source it is homologous when, can be according to two bursts of fiducial temperatures and defeated
Go out set temperature, preset mixed proportion makes gas temperature rate of change significantly improve.The proportioning valve of electromagnetic drive is used at present,
Total travel positioning time is less than 1s or 7s.When the thermal capacity in gas reference source should be such that regulation maximum gas flow passes through, temperature
Fluctuation is no more than specified value.Carrier is done using the high liquid of specific heat capacity, temperature speed control is high.
Claims (4)
1. a kind of hot and cold air ratio mixes high-precision Quick temperature adjustment, which is characterized in that including：
Heating device (1), triple valve (2)；
Heating device (1) input terminal is connect with compressed air source, an input of heating device (1) output end and triple valve (2)
End connection；Another input terminal of triple valve (2) is connect with compressed air source, and output end and the aircraft inerting of triple valve (2) fill
Set connection.
2. a kind of hot and cold air ratio as described in claim 1 mixes high-precision Quick temperature adjustment, which is characterized in that heating
Device (1) output end is also connect with emptying solenoid valve (3).
3. a kind of hot and cold air ratio as described in claim 1 mixes high-precision Quick temperature adjustment, which is characterized in that heating
The first safety valve (4) is equipped between device (1) output end and an input terminal of triple valve (2).
4. a kind of hot and cold air ratio as described in claim 1 mixes high-precision Quick temperature adjustment, which is characterized in that compression
Air-source front end is equipped with the second safety valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721742320.XU CN207729830U (en) | 2017-12-13 | 2017-12-13 | A kind of hot and cold air ratio mixing high-precision Quick temperature adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721742320.XU CN207729830U (en) | 2017-12-13 | 2017-12-13 | A kind of hot and cold air ratio mixing high-precision Quick temperature adjustment |
Publications (1)
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| CN207729830U true CN207729830U (en) | 2018-08-14 |
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| CN201721742320.XU Active CN207729830U (en) | 2017-12-13 | 2017-12-13 | A kind of hot and cold air ratio mixing high-precision Quick temperature adjustment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398748A (en) * | 2018-09-26 | 2019-03-01 | 中国航空工业集团公司西安飞机设计研究所 | A kind of comprehensive experimental device for simulating the control of aircraft ring and inerting system heat load |
| CN112495568A (en) * | 2020-12-01 | 2021-03-16 | 西安热工研究院有限公司 | Coal mill coal type switching device and discrimination method based on specific heat change of coal |
| CN114294447A (en) * | 2021-12-15 | 2022-04-08 | 中国航空工业集团公司成都飞机设计研究所 | Fluid distribution proportion continuous accurate adjusting device, flow distribution system and method |
-
2017
- 2017-12-13 CN CN201721742320.XU patent/CN207729830U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398748A (en) * | 2018-09-26 | 2019-03-01 | 中国航空工业集团公司西安飞机设计研究所 | A kind of comprehensive experimental device for simulating the control of aircraft ring and inerting system heat load |
| CN112495568A (en) * | 2020-12-01 | 2021-03-16 | 西安热工研究院有限公司 | Coal mill coal type switching device and discrimination method based on specific heat change of coal |
| CN114294447A (en) * | 2021-12-15 | 2022-04-08 | 中国航空工业集团公司成都飞机设计研究所 | Fluid distribution proportion continuous accurate adjusting device, flow distribution system and method |
| CN114294447B (en) * | 2021-12-15 | 2023-10-20 | 中国航空工业集团公司成都飞机设计研究所 | Fluid distribution proportion continuous accurate adjusting device, flow distribution system and method |
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