CN103953853B - Device for balancing pressure fluctuation of liquid circulation loop - Google Patents
Device for balancing pressure fluctuation of liquid circulation loop Download PDFInfo
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- CN103953853B CN103953853B CN201410162292.9A CN201410162292A CN103953853B CN 103953853 B CN103953853 B CN 103953853B CN 201410162292 A CN201410162292 A CN 201410162292A CN 103953853 B CN103953853 B CN 103953853B
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- 229910052739 hydrogen Inorganic materials 0.000 description 6
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- 229910052734 helium Inorganic materials 0.000 description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 5
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- 239000007791 liquid phase Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
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Abstract
The invention relates to a method and a device for realizing pressure balance in real time, in particular to a device for balancing the pressure fluctuation of a liquid circulation loop. A pressure fluctuation balancing system is formed by connecting a pressure buffer and a gas buffer tank with a connection pipeline; the pressure buffer is arranged in an outer drum body and the integral structure of the pressure buffer comprises an inner corrugated pipe, an outer corrugated pipe, an inner shaft, a limiting mechanism, an outer container, a mirror surface structure and a displacement measuring system; the inner corrugated pipe and the outer corrugated pipe are connected by the inner shaft, so the motion displacement of the inner corrugated pipe can be transmitted to the outer corrugated pipe for realizing the sealing of the inner shaft; the gas buffer tank is connected to the gas side of the buffer by the connection pipeline so as to realize that the pressure at the gas side is kept instant. The device for balancing the pressure fluctuation of the liquid circulation loop has the characteristics of compact structure, convenient operation, high regulation precision, short pressure balancing time, stable pressure and the like. The device belongs to an efficient and feasible device for regulating the work pressure of the system of the closed liquid circulation loop.
Description
Technical field
The present invention relates to a kind of pressure balanced method and apparatus of real-time implementation, espespecially one kind loops back for balancing liquid
The device of road pressure oscillation.
Background technology
In enclosed liquid circulation loop system, the fluctuation of pressure is very big for the impact of system, usually has percussive pressure
Power is up to ten times or even decades of times of normal operating pressure, in turn results in the phenomenon of blood circulation damage.Especially in Low Temperature Liquid
In body closed circulation system, the change of system heat load generally makes the temperature of cryogenic media change, and then leads to circulate
Operating pressure significantly fluctuates.Normal table for ensureing blood circulation runs, and needs to carry out pressure regulation to system so that circulating
Operating pressure keeps constant within the specific limits.
For the regulation of Normal Atmospheric Temperature Liquid closed circuit system pressure fluctuation, Chinese patent open source literature notification number is
Describe a kind of employing spring in cn201461614u and adjust the device of hydraulic system pressure fluctuation it is characterised in that housing
Lower end is fixed on the oil circuit of hydraulic system, and in housing bore, spring is placed between two slide blocks two slide block slide fits, by spring
The pressure balance to realize hydraulic system for the elastic movement.However, being related to the liquid that some have considerable influence to environment, slide block is close
Can the quality of sealing property will have a strong impact on pressure buffer device and normally run.
Cryogenic liquid closed circuit system pressure is fluctuated and adjusts, conventional method is in cryogenic liquid closed circuit system
In system, Dewar is set, adjusts by gas-liquid phase transition to change the pressure of blood circulation and make it restore balance.Specifically, it is in Du
Electric heater is installed additional in watt.When system heat load increase leads to cryogenic liquid temperature to raise and then pressure increase, pass through
Remove the power of a part of electric heater, in Dewar, a part of vapor condensation becomes liquid phase, so that the pressure in Dewar reduces,
The operating pressure of cryogenic liquid closed circuit system reduces therewith and returns to poised state.On the other hand, work as system heat load
When reducing the temperature reduction leading to cryogenic liquid and then pressure reduction occurring, by increasing the power of electric heater in Dewar, make
Obtain the liquid-phase vaporization of a part in Dewar, so that the operating pressure of cryogenic liquid closed circuit system increases therewith and recovers
To poised state.However, there is certain deficiency when realizing the fluctuation regulation of cryogenic liquid closed circuit system pressure in the method
Part: the gas-liquid phase transition in Dewar adjusts the mode of pressure it is impossible to realize being precisely controlled, thus degree of regulation is poor；And by
Regulation in electric heater capacity has time delay, and control is delayed will to cause system pressure to fluctuate acutely at short notice,
It is unfavorable for the stable operation of liquid circulation loop system；Although China Patent Publication No. is cn101620036a one kind is based on pressure
The detection means of the corrugated tube volume displacement relation of balanced type discloses a kind of position under a certain operating pressure for measuring bellow
Move the device with volume, the ripple based on pressure balance type of espespecially a kind of certainty of measurement that can improve corrugated tube volume and displacement
The detection means of pipe volume displacement relation, but this apparatus structure is complex, deposits with the measuring method in the invention simultaneously
Significantly different.
Content of the invention
In order to make up deficiency of the prior art, it is contemplated that open one kind can be applied to Normal Atmospheric Temperature Liquid or Low Temperature Liquid
In the closed circuit system of body, cubage compensation is realized by the stretching of corrugated tube or the situation of contraction, for adjusting liquid circulation
A kind of device for balancing liquid closed circuit pressure oscillation of the pressure oscillation of circuit system.
For achieving the above object, the technical solution used in the present invention is: one kind is used for balancing liquid closed circuit pressure wave
Dynamic device it is characterised in that:
Described device is connected with a gas buffer tank by connecting line by a pressure buffer and forms pressure wave
Dynamic balance system,
Described pressure buffer is installed in an outer cylinder body, and its overall structure includes inner corrugated pipe, outward corrugated tube, interior
Axle, position-limit mechanism, outer container, mirror surface structure and displacement measurement system, wherein, inner corrugated pipe, interior axle, position-limit mechanism are installed on outer
In container, it is connected by interior axle between inner corrugated pipe and outward corrugated tube, make the moving displacement of inner corrugated pipe can be transferred to outer ripple
Pipe, outward corrugated tube realizes the sealing of interior axle；Described displacement measurement system includes laser displacement sensor or linear variable differential becomes
Depressor, described mirror surface structure is arranged on outer cylinder body end face, and displacement transducer is arranged on mirror surface structure just to top to corrugated tube
Deflection measures, and the moving displacement of monitoring inner corrugated pipe is transferred to the motion conditions of outward corrugated tube, thus monitor in real time pressure
The working condition of power buffer；During normal work, liquid-working-medium will surround inner corrugated pipe the whole sky full of outer container
Between, gassy working media inside inner corrugated pipe, and connected to gas buffer tank by connecting line；
Described gas buffer tank is a gas at normal temperature storage tank, is connected to the gas of pressure buffer by connecting line
Side, keeps constant with the pressure realizing gas side.
Described position-limit mechanism includes top dead centre and lower dead center, limits the deformation extent of inner corrugated pipe by upper and lower stop.
Described inner corrugated pipe can be welding bellows；Outward corrugated tube is welding bellows or molding corrugated tube.
Liquid-working-medium in described liquid circulation loop system is cryogenic liquid or Normal Atmospheric Temperature Liquid.
In described gas buffer tank, gas working dielectric is less than working media in liquid circulation loop system for boiling point
Gas.
Described liquid circulation loop system follow by terminal use, dynamical element, control element and for balancing liquid
The device of loop back path pressure oscillation connects the enclosed cryogenic liquid closed circuit system being formed,
When cryogenic liquid closed circuit normal work, if terminal use causes cryogenic liquid pressure because work produces thermic load
Fluctuation, the corrugated tube of pressure buffer is subject to the effect of hydraulic fluid side and gas side unbalanced pressure to be compressed or stretch, liquid
The volume on side is correspondingly made available compensation or compresses, so that the pressure of hydraulic fluid side returns to balance pressure, thus achieves
The balance of the pressure oscillation of cryogenic liquid closed circuit is controlled.
Outside the outer container of described pressure buffer, parcel adiabator does insulation, is set to true outside outer container
Altitude.
Described liquid circulation loop system follow by executive component, dynamical element, control element and for balancing liquid
The device of loop back path pressure oscillation connects the enclosed Normal Atmospheric Temperature Liquid closed circuit system being formed,
When Normal Atmospheric Temperature Liquid closed circuit normal work, if executive component makes the thermic load of Normal Atmospheric Temperature Liquid because of execution order
Change and then cause fluid pressure to fluctuate, the corrugated tube of pressure buffer is acted on by hydraulic fluid side and gas side unbalanced pressure
And compressed or stretched, the volume of hydraulic fluid side is correspondingly made available compensation or compresses so that the pressure of hydraulic fluid side return to flat
Weighing apparatus pressure, the balance thus achieving the pressure oscillation to Normal Atmospheric Temperature Liquid closed circuit controls.
The invention has the beneficial effects as follows: a kind of device for balancing liquid closed circuit pressure oscillation of the present invention provides one
Plant and with shrinking, the pressure oscillation of liquid-working-medium is transferred to gas buffer using the stretching of the corrugated tube in pressure buffer
Gas working dielectric in tank, thus realizing the method and apparatus that liquid-working-medium pressure oscillation controls, corrugated tube first is good
Good sealing property, is avoided that liquid-working-medium is polluted by gas working dielectric, and secondly the displacement measurement of auxiliary can be directly perceived
Show the motion conditions of corrugated tube exactly, be capable of monitor in real time；Furthermore whole pressure buffer device structure is simple, operation
Convenient；With respect to other pressure oscillation control devices, there is compact conformation, easy to operate, degree of regulation is high, pressure balance time
Short and stable feature, is a kind of efficiently feasible dress of general enclosed liquid circulation loop system fading margin system working pressure
Put.
Brief description
Fig. 1 is the structural representation of pressure buffer device of the present invention；
Fig. 2 is the schematic diagram that the pressure buffer device of the present invention is used for cryogenic liquid closed cycle circuit system；
Fig. 3 is the schematic diagram that the pressure buffer device of the present invention is used for Normal Atmospheric Temperature Liquid closed cycle circuit system.
Accompanying drawing mark explanation:
1- liquid inlet, 2- outer container, 3- position-limit mechanism, 4- inner corrugated pipe, 5- interior axle, 6- outward corrugated tube, 7- outer cylinder body,
8- mirror surface structure, 9- displacement transducer, 10- liquid outlet, 11- connecting line, 12- gas buffer tank.
Specific embodiment
The specific embodiment of the detailed description present invention below in conjunction with the accompanying drawings:
A kind of device for balancing liquid closed circuit pressure oscillation, described device is passed through by a pressure buffer
Connecting line 11 is connected formation pressure oscillation balance system with a gas buffer tank 12, and described pressure buffer is installed on one
In outer cylinder body, its overall structure includes inner corrugated pipe 4, outward corrugated tube 6, interior axle 5, position-limit mechanism 3, outer container 2, mirror surface structure 8
And displacement measurement system, wherein, inner corrugated pipe 4, interior axle 5, position-limit mechanism 3 are installed in outer container 2, inner corrugated pipe 4 and external wave
Connected by interior axle 5 between stricture of vagina pipe 6, make the moving displacement of inner corrugated pipe 4 can be transferred to outward corrugated tube 6, outward corrugated tube 6 is realized interior
The sealing of axle 5；Described displacement measurement system includes laser displacement sensor 9 or linear variable difference transformer, described minute surface
Structure 8 is arranged on outer cylinder body 7 end face, and displacement transducer 9 is arranged on mirror surface structure 8 and just top is surveyed to corrugated tube deflection
Amount, the moving displacement of monitoring inner corrugated pipe 4 is transferred to the motion conditions of outward corrugated tube 6, thus monitor in real time pressure buffer
Working condition；During normal work, liquid-working-medium will surround inner corrugated pipe 4 the whole space full of outer container 2, interior ripple
Pipe 4 inner side gassy working media, and connected to gas buffer tank 12 by connecting line 11；Described gas buffer tank 12
For a gas at normal temperature storage tank, it is connected to the gas side of pressure buffer by connecting line 11, protected with the pressure realizing gas side
Hold constant；Described position-limit mechanism 3 includes top dead centre and lower dead center, limits the deformation journey of inner corrugated pipe 4 by upper and lower stop
Degree.
Described inner corrugated pipe 4 can be welding bellows；Outward corrugated tube 6 is welding bellows or molding corrugated tube, welds ripple
Stricture of vagina pipe, compared to molding corrugated tube, makes because its rigidity is less trickle pressure change enable to corrugated tube and produces displacement,
Or the moving displacement of welding bellows is bigger under same pressure change, cubage compensation ability is bigger and survey that be easy to displacement
Amount, and the good seal performance of corrugated tube can be effectively isolated liquid working substance and gas working medium, thus avoiding between gas-liquid
Mutual pollution.
Working media in described liquid circulation loop system is cryogenic liquid or Normal Atmospheric Temperature Liquid, and wherein cryogenic liquid can be
Liquid nitrogen, liquid oxygen, liquid argon, liquid hydrogen or liquefied natural gas；Normal Atmospheric Temperature Liquid can be water, oil etc.；Gas in described gas buffer tank 12
Working media is less than the gas of working media in liquid circulation loop system for boiling point.
When the working media of liquid circulation loop system is cryogenic liquid, gas work in described gas buffer tank 12
Medium is less than the gas of adopted liquid-working-medium boiling point, for example, when liquid-working-medium is for liquid hydrogen, gas by boiling point
Working media can be helium, and that is, boiling point is less than the gas working medium of liquid hydrogen boiling point；When liquid-working-medium is for liquid nitrogen, gas works
Medium can be helium, hydrogen, and that is, boiling point is less than the gas working medium of liquid nitrogen boiling point；When the working media of liquid circulation loop system is
During Normal Atmospheric Temperature Liquid, in described gas buffer tank 12, gas working dielectric is common room temperature-compressible gas；For example, liquid work
When making medium for oil, gas working dielectric can be helium, hydrogen, nitrogen, argon or air etc..
When the device normal work for balancing liquid closed circuit pressure oscillation, liquid-working-medium is by liquid inlet
1 entrance container is simultaneously full of, and is flowed out by liquid outlet 10, described inner corrugated pipe 4 will be surrounded by liquid-working-medium, using corrugated tube
Contraction and stretching realize the regulation of pressure oscillation, inner corrugated pipe 4 inner chamber gassy working media, by connecting line 11 with
Gas buffer tank 12 is connected, and described displacement measurement system is realized the measurement of corrugated tube deflection, by position by displacement transducer 9
Displacement sensor 9 monitors the motion conditions of corrugated tube, thus the working condition of monitor in real time pressure buffer；Pressure when hydraulic fluid side
During rising, because gas side is connected to gas buffer tank 12 so that the pressure of pressure buffer gas side is held essentially constant, gas
Pressure differential between liquid will make inner corrugated pipe 4 shrink, the volume of hydraulic fluid side be compensated so that the pressure of liquid reduce into
And returning to operating pressure, corrugated tube reaches balance in new position；When the pressure of hydraulic fluid side reduces, the pressure differential between gas-liquid
Inner corrugated pipe 4 will be led to stretch, the volume of hydraulic fluid side is compressed so that the pressure of liquid increases and then returns to work pressure
Power；The present invention utilizes contraction and the stretching of corrugated tube, and the pressure oscillation of hydraulic fluid side is transferred to gas side, by by gas side even
Connect a gas buffer tank 12 to maintain the pressure of pressure buffer gas side constant, realize liquid by changing the displacement of corrugated tube
The control of body pressure oscillation.
A kind of embodiment one: cryogenic liquid closed cycle using the device for balancing liquid closed circuit pressure oscillation
System.
Described liquid circulation loop system follow by terminal use, dynamical element, control element and for balancing liquid
The device of loop back path pressure oscillation connects the enclosed cryogenic liquid closed circuit system being formed, wherein said for balancing liquid
The device of closed circuit pressure oscillation is connected shape by connecting line 11 with a gas buffer tank 12 by a pressure buffer
Become pressure oscillation balance system, the liquid-working-medium of blood circulation is low temperature liquid hydrogen；Described pressure buffer is installed on one
In outer cylinder body 7, its overall structure includes inner corrugated pipe 4, outward corrugated tube 6, interior axle 5, position-limit mechanism 3, outer container 2, mirror surface structure 8
And displacement measurement system, wherein, inner corrugated pipe 4, interior axle 5, position-limit mechanism 3 are installed in outer container 2, inner corrugated pipe 4 and external wave
Connected by interior axle 5 between stricture of vagina pipe 6, make the moving displacement of inner corrugated pipe 4 can be transferred to outward corrugated tube 6, outward corrugated tube 6 is realized interior
The sealing of axle 5；Described displacement measurement system includes laser displacement sensor 9 or linear variable difference transformer, described minute surface
Structure 8 is arranged on outer cylinder body 7 end face, and displacement transducer 9 is arranged on mirror surface structure 8 and just top is surveyed to corrugated tube deflection
Amount, the moving displacement of monitoring inner corrugated pipe 4 is transferred to the motion conditions of outward corrugated tube 6, thus monitor in real time pressure buffer
Working condition；During normal work, liquid-working-medium will surround inner corrugated pipe 4 the whole space full of outer container 2, interior ripple
Pipe 4 inner side gassy working media, and connected to gas buffer tank 12 by connecting line 11；Described gas buffer tank 12
For a gas at normal temperature storage tank, the working media in gas buffer tank 12 is helium, is connected to pressure buffer by connecting line 11
The gas side of device, keeps constant with the pressure realizing gas side；When cryogenic liquid closed circuit normal work, if terminal use
Cause cryogenic liquid pressure oscillation because work produces thermic load, the corrugated tube of pressure buffer is subject to hydraulic fluid side and gas side uneven
The weighing apparatus effect of pressure and compress or stretch, the volume of hydraulic fluid side is correspondingly made available and compensates or compression, so that hydraulic fluid side
Pressure returns to balance pressure, and the balance thus achieving the pressure oscillation to cryogenic liquid closed circuit controls.
A kind of embodiment two: Normal Atmospheric Temperature Liquid closed cycle using the device for balancing liquid closed circuit pressure oscillation
System.
Described liquid circulation loop system follow by executive component, dynamical element, control element and for balancing liquid
The device of loop back path pressure oscillation connects the enclosed Normal Atmospheric Temperature Liquid closed circuit system being formed, wherein said for balancing liquid
The device of closed circuit pressure oscillation is connected shape by connecting line 11 with a gas buffer tank 12 by a pressure buffer
Become pressure oscillation balance system, the liquid-working-medium of blood circulation is room temperature hydraulic oil；Described pressure buffer is installed on
In one outer cylinder body 7, its overall structure includes inner corrugated pipe 4, outward corrugated tube 6, interior axle 5, position-limit mechanism 3, outer container 2, minute surface knot
Structure 8 and displacement measurement system, wherein, inner corrugated pipe 4, interior axle 5, position-limit mechanism 3 are installed in outer container 2, and inner corrugated pipe 4 is with outward
Connected by interior axle 5 between corrugated tube 6, make the moving displacement of inner corrugated pipe 4 can be transferred to outward corrugated tube 6, outward corrugated tube 6 is realized
The sealing of interior axle 5；Described displacement measurement system includes laser displacement sensor 9 or linear variable difference transformer, described mirror
Face structure 8 is arranged on outer cylinder body 7 end face, and displacement transducer 9 is arranged on mirror surface structure 8 just to be carried out to corrugated tube deflection to top
Measurement, the moving displacement of monitoring inner corrugated pipe 4 is transferred to the motion conditions of outward corrugated tube 6, thus monitor in real time pressure buffer
Working condition；During normal work, liquid-working-medium will surround inner corrugated pipe 4 the whole space full of outer container 2, interior ripple
Stricture of vagina pipe 4 inner side gassy working media, and connected to gas buffer tank 12 by connecting line 11；Described gas buffer tank
12 is a gas at normal temperature storage tank, and the working media in gas buffer tank 12 is helium, is connected to pressure by connecting line 11 and delays
Rush the gas side of device, keep constant with the pressure realizing gas side；When Normal Atmospheric Temperature Liquid closed circuit normal work, if executing unit
Part makes the thermic load of Normal Atmospheric Temperature Liquid change and then causes fluid pressure to fluctuate because of execution order, and the corrugated tube of pressure buffer is subject to
Compressed to the effect of hydraulic fluid side and gas side unbalanced pressure or stretched, the volume of hydraulic fluid side is correspondingly made available compensation or presses
Contracting, so that the pressure of hydraulic fluid side returns to balance pressure, thus achieves the pressure oscillation to Normal Atmospheric Temperature Liquid closed circuit
Balance control.
Structure in embodiment one and embodiment two is slightly different, during especially for cryogenic liquid working media, pressure
Power buffer needs to do insulation, i.e. wrapped multiple adiabator outside pressure buffer outer container 2, and sets up outer container
Vacuum environment between 2 outsides and outer cylinder body 7 inner side, additionally, the connecting tube of gas buffer tank 12 and pressure buffer gas side
Road 11 can be longer, to reduce the leakage heat of pressure buffer.
The above, be only presently preferred embodiments of the present invention, not the technical scope of the present invention imposed any restrictions, one's own profession
The technical staff of industry, under the inspiration of the technical program, can make some deformation and modification, every technology according to the present invention
Any modification, equivalent variations and modification that essence is made to above embodiment, all still fall within the scope of technical solution of the present invention
Interior.
Claims (8)
1. a kind of device for balancing liquid closed circuit pressure oscillation it is characterised in that:
Described device is connected with a gas buffer tank by connecting line by a pressure buffer and forms pressure oscillation and put down
Balance system,
Described pressure buffer is installed in an outer cylinder body, and its overall structure includes inner corrugated pipe, outward corrugated tube, interior axle, limit
Position mechanism, outer container, mirror surface structure and displacement measurement system, wherein, inner corrugated pipe, interior axle, position-limit mechanism are installed on outer container
In, it is connected by interior axle between inner corrugated pipe and outward corrugated tube, make the moving displacement of inner corrugated pipe can be transferred to outward corrugated tube, outward
The sealing of interior axle realized by corrugated tube；Described displacement measurement system includes laser displacement sensor or linear variable difference transformer,
Described mirror surface structure is arranged on outer cylinder body end face, and displacement transducer is arranged on mirror surface structure just to top to corrugated tube deflection
Measure, the moving displacement of monitoring inner corrugated pipe is transferred to the motion conditions of outward corrugated tube, thus monitor in real time pressure buffer
The working condition of device；During normal work, liquid-working-medium will surround inner corrugated pipe the whole space full of outer container, interior ripple
Gassy working media inside stricture of vagina pipe, and connected to gas buffer tank by connecting line；
Described gas buffer tank is a gas at normal temperature storage tank, is connected to the gas side of pressure buffer by connecting line, with
The pressure realizing gas side keeps constant.
2. a kind of device for balancing liquid closed circuit pressure oscillation according to claim 1 it is characterised in that: institute
The position-limit mechanism stated includes top dead centre and lower dead center, limits the deformation extent of inner corrugated pipe by upper and lower stop.
3. a kind of device for balancing liquid closed circuit pressure oscillation according to claim 1 it is characterised in that: institute
Stating inner corrugated pipe can be welding bellows；Outward corrugated tube is welding bellows or molding corrugated tube.
4. a kind of device for balancing liquid closed circuit pressure oscillation according to claim 1 it is characterised in that: liquid
Working media in body circulation circuit system is cryogenic liquid or Normal Atmospheric Temperature Liquid.
5. a kind of device for balancing liquid closed circuit pressure oscillation according to claim 1 it is characterised in that: institute
In the gas buffer tank stated, gas working dielectric is less than the gas of working media in liquid circulation loop system for boiling point.
6. a kind of usage right requires a kind of cryogenic liquid of the device for balancing liquid closed circuit pressure oscillation described in 1
Closed cycle circuit system it is characterised in that: described blood circulation is by terminal use, dynamical element, control element and use
Device in balancing liquid closed circuit pressure oscillation connects the enclosed cryogenic liquid closed circuit system being formed,
When cryogenic liquid closed circuit normal work, if terminal use causes cryogenic liquid pressure wave because work produces thermic load
Dynamic, the corrugated tube of pressure buffer is subject to the effect of hydraulic fluid side and gas side unbalanced pressure to be compressed or stretch, hydraulic fluid side
Volume be correspondingly made available compensation or compress so that the pressure of hydraulic fluid side returns to balance pressure, thus achieve to low
The balance of the pressure oscillation of geothermal liquid closed circuit controls, and monitors the displacement of corrugated tube it can be determined that pressing by displacement transducer
The working condition of power buffer.
7. a kind of usage right requires a kind of Normal Atmospheric Temperature Liquid of the device for balancing liquid closed circuit pressure oscillation described in 1
Closed cycle circuit system it is characterised in that: described blood circulation is by executive component, dynamical element, control element and use
Device in balancing liquid closed circuit pressure oscillation connects the enclosed Normal Atmospheric Temperature Liquid closed circuit system being formed,
When Normal Atmospheric Temperature Liquid closed circuit normal work, if executive component makes the thermic load of Normal Atmospheric Temperature Liquid change because of execution order
And then causing fluid pressure to fluctuate, the corrugated tube of pressure buffer is subject to the effect of hydraulic fluid side and gas side unbalanced pressure and quilt
Compression or stretching, the volume of hydraulic fluid side is correspondingly made available compensation or compresses, so that the pressure of hydraulic fluid side returns to balance pressure
Power, the balance thus achieving the pressure oscillation to Normal Atmospheric Temperature Liquid closed circuit controls, and monitors corrugated tube by displacement transducer
Displacement it can be determined that the working condition of pressure buffer.
8. a kind of device for balancing liquid closed circuit pressure oscillation according to claim 1 it is characterised in that:
Outside the outer container of pressure buffer, parcel adiabator does insulation, is set to vacuum environment outside outer container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162292.9A CN103953853B (en) | 2014-04-22 | 2014-04-22 | Device for balancing pressure fluctuation of liquid circulation loop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162292.9A CN103953853B (en) | 2014-04-22 | 2014-04-22 | Device for balancing pressure fluctuation of liquid circulation loop |
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| CN103953853A CN103953853A (en) | 2014-07-30 |
| CN103953853B true CN103953853B (en) | 2017-01-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104848040A (en) * | 2015-05-13 | 2015-08-19 | 苏州思创西玛控制系统有限公司 | Flow pressure stabilizing device and method thereof |
| CN106468322A (en) * | 2015-08-17 | 2017-03-01 | 天津海莱姆科技有限公司 | Heat exchange type fluid buffer |
| CN109268686A (en) * | 2017-07-17 | 2019-01-25 | 国家电投集团科学技术研究院有限公司 | Constant-current stabilizer |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939444A (en) * | 2010-06-09 | 2013-02-20 | 罗伯特·博世有限公司 | Pressure equalization device for hydraulic systems |
| CN103515061A (en) * | 2013-10-25 | 2014-01-15 | 国家电网公司 | Intelligent dynamic sealed liquid storage tank equipped with metal ripple compensator and use method of intelligent dynamic sealed liquid storage tank |
| CN203880399U (en) * | 2014-04-22 | 2014-10-15 | 东莞中子科学中心 | Device for balancing pressure fluctuation of liquid circulation loop |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4919725B2 (en) * | 2006-08-01 | 2012-04-18 | Ｊｆｅエンジニアリング株式会社 | Vibration prevention method in gas piping system |
-
2014
- 2014-04-22 CN CN201410162292.9A patent/CN103953853B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939444A (en) * | 2010-06-09 | 2013-02-20 | 罗伯特·博世有限公司 | Pressure equalization device for hydraulic systems |
| CN103515061A (en) * | 2013-10-25 | 2014-01-15 | 国家电网公司 | Intelligent dynamic sealed liquid storage tank equipped with metal ripple compensator and use method of intelligent dynamic sealed liquid storage tank |
| CN203880399U (en) * | 2014-04-22 | 2014-10-15 | 东莞中子科学中心 | Device for balancing pressure fluctuation of liquid circulation loop |
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