CN104655349B - Device for pressure measurement and pressure measurement method - Google Patents
Device for pressure measurement and pressure measurement method Download PDFInfo
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- CN104655349B CN104655349B CN201310578163.3A CN201310578163A CN104655349B CN 104655349 B CN104655349 B CN 104655349B CN 201310578163 A CN201310578163 A CN 201310578163A CN 104655349 B CN104655349 B CN 104655349B
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Abstract
A kind of device for pressure measurement, including：Pressure guiding pipe, one end of pressure guiding pipe extends in space to be measured and limits impulse point, the other end of pressure guiding pipe closing and outside space to be measured, and space content to be measured receives liquid；Liquid-column height measuring appliance, the liquid-column height for the liquid level being configured to measure in pressure guiding pipe in from impulse point to pressure guiding pipe；Gas inlet tube, is configured to introduce gases into the other end of pressure guiding pipe；And pressure sensor, it is configured to measure the gas pressure in pressure guiding pipe.Alternatively, the space to be measured is the fused salt loop used in fusedsalt reactor, and the liquid is fused salt；The gas does not chemically react with the fused salt.
Description
Technical field
The present invention relates to pressure measxurement, more particularly, to the pressure measxurement in high-temperature molten salt loop.
Background technology
Fusedsalt reactor (MSR) is all in itself as one of six kinds of heap-type of Generation IV, its cooling agent even fuel
Fused salt mixture.In many designs, what is praised highly the most is that nuclear fuel is dissolved in the villiaumite cooling agent of melting.The work of villiaumite
Make pressure relatively low, general a little higher than 1 atmospheric pressure, operating temperature is up to 800 DEG C, but its fusing point is at 450 DEG C or so, and high temperature
Villiaumite has very strong corrosivity, is that pipeline pressure measurement brings very big difficulty.
Existing pressure sensor, as sensing element, in so high temperature, and has very strong typically using metallic membrane
Corrosivity, sensing element corroded and with thermal stress, makes it can not normal work.While usual pressure sensor requirements
There is pressure pipe, if being not added with safeguard procedures, the solidification of fused salt will be caused.Even if sensing element can be adapted to working environment, its
Only 310 DEG C of transmitting medium (silicone oil or other oil) highest heatproof, it is impossible to complete the pressure measxurement of high-temperature molten salt.
In terms of metallic sodium circuit pressure measurement, patent CN102435381A has carried out relevant discussion, its pressure experience
Part still uses foil gauge, it is impossible to suitable for high temperature corrosion fused salt environment.
Patent CN101750181A has carried out the discussion about high-temperature molten salt pressure measuring, but its temperature in use is not higher than
450 DEG C, and due to corrosion and thermal stress, diaphragm membrane structure should not be used under villiaumite environment.
The content of the invention
To solve to inscribe between pressure experience thermal stress of components and corrosion, the pressure in such as high temperature corrosion fused salt loop is realized
Measurement, proposes the present invention.
The invention provides a kind of device for pressure measurement, including：Pressure guiding pipe, one end of pressure guiding pipe is extended in space to be measured
And impulse point is limited, the other end of pressure guiding pipe closing and outside space to be measured, space content to be measured receives liquid；Liquid-column height is surveyed
Measuring device, the liquid-column height for the liquid level being configured to measure in pressure guiding pipe in from impulse point to pressure guiding pipe；Gas inlet tube, be configured to by
Gas is incorporated into the other end of pressure guiding pipe；And pressure sensor, it is configured to measure the gas pressure in pressure guiding pipe.
Alternatively, the lower end of pressure guiding pipe extends in space to be measured and limits impulse point, the upper end closed of pressure guiding pipe and position
In outside space to be measured；Gas inlet tube is configured to the ullage introduced gases into the pressure guiding pipe.
Alternatively, the upper end of pressure guiding pipe extends in space to be measured and limits impulse point, the lower end closed of pressure guiding pipe and position
In outside space to be measured；Gas inlet tube is configured to introduce gases into below the liquid level in the pressure guiding pipe.
Alternatively, the space to be measured is the fused salt loop used in fusedsalt reactor, and the liquid is fused salt；The gas
Body does not chemically react with the fused salt.Further, the gas includes one kind in nitrogen, helium, carbon dioxide.Enter
One step, the gas inlet tube is communicated with source of the gas, and is incorporated into the gas pressure in pressure guiding pipe and can be adjusted.
Alternatively, the pressure guiding pipe has enlarged-diameter portion, and the liquid level is located at the enlarged-diameter portion.
Alternatively, the device for pressure measurement also includes heat-insulation layer, around the pressure guiding pipe setting positioned at outside to be measured.
In above-mentioned device for pressure measurement, alternatively, the liquid-column height measuring appliance is included along liquid-column height direction successively cloth
The multipair smooth transmitting terminal and optical receiving end put, the radial direction of the light transmitting terminal and optical receiving end of each centering along pressure guiding pipe is each other
Level is relative, and the light that each centering is sent from light transmitting terminal is received by optical receiving end.Further, each light transmitting terminal and every
Individual optical receiving end includes optical fiber and is arranged on the sleeve pipe of outer fiber；It is provided with the tube wall of pressure guiding pipe and light transmitting terminal and light
The corresponding multiple through holes of receiving terminal, sleeve pipe is arranged in corresponding through hole；And each sleeve pipe is in the footpath of its through hole installed
The tube wall of neighbouring and pressure guiding pipe is welded outward.Or alternatively, the liquid-column height measuring appliance includes being arranged on the impulse
Transmitting terminal and receiving terminal on the inwall of the end wall of the other end of pipe, light or ultrasonic wave are from the transmitting terminal described in
Liquid level outgoing, is reflected by the liquid level and enters the optical receiving end.
Alternatively, above-mentioned device for pressure measurement also includes：Directintermination joint, is arranged on the peace on the wall in space to be measured
Fill in hole, described one end of the pressure guiding pipe is entered in the space to be measured through the directintermination joint.Further
Ground, the pressure guiding pipe is suitable to change the depth extended in the space to be measured.
The present invention also proposes a kind of pressure-measuring system, including multiple above-mentioned device for pressure measurement, plurality of pressure
The impulse point of two device for pressure measurement in measurement apparatus respectively positioned at pressure guiding pipe inner wall surface at and pressure guiding pipe pipe
Road center.
The present invention also relates to a kind of pressure measurement method, including：Pressure guiding pipe is provided, the lower end of the pressure guiding pipe, which is extended to, treats
Survey in space and limit impulse point the liquid in space to be measured is incorporated into the pressure guiding pipe, the upper end seal of the pressure guiding pipe
Close and positioned at the outside in the space to be measured；Into the pressure guiding pipe gas is introduced positioned at the space of ullage；Measurement is described
In the pressure and pressure guiding pipe of gas from impulse point to pressure guiding pipe in liquid level liquid-column height；And produced by liquid-column height
Pressure and measure gas pressure and as the Fluid pressure in space to be measured at impulse point.
The invention further relates to a kind of pressure measurement method, including：Pressure guiding pipe is provided, the upper end of the pressure guiding pipe, which is extended to, treats
Survey in space and limit impulse point the liquid in space to be measured is incorporated into the pressure guiding pipe, the lower end seal of the pressure guiding pipe
Close and positioned at the outside in the space to be measured；From the lower end gas is introduced into the pressure guiding pipe；Measure the pressure of the gas
In power and pressure guiding pipe from impulse point to pressure guiding pipe in liquid level liquid-column height；And fluid column is subtracted by the gas pressure measured
The result of the pressure highly produced is used as the Fluid pressure in space to be measured at impulse point.
The above method may also include step：Gas pressure is adjusted to change the position of liquid level in pressure guiding pipe.
In the above method, alternatively, the space to be measured is the fused salt loop that uses in fusedsalt reactor, and the liquid is
Fused salt；The gas does not chemically react with the fused salt.
The above method may also include step：The distance that regulation pressure guiding pipe is extended in space to be measured.
Brief description of the drawings
Fig. 1 is the structural representation of the device for pressure measurement according to one exemplary embodiment of the present invention；
Fig. 2 is the close-up schematic view of the device for pressure measurement according to one exemplary embodiment of the present invention.
Embodiment
The embodiment of the exemplary of the present invention is described below in detail, the example of embodiment is shown in the drawings, wherein identical
Or similar label represents same or analogous element.Below with reference to the accompanying drawings the embodiment described is exemplary, it is intended to explained
The present invention, and be not construed as limiting the claims.
As shown in Figure 1-2, the invention provides a kind of device for pressure measurement, including：
Pressure guiding pipe 1, one end of pressure guiding pipe 1 extends in space to be measured and limits impulse point A, the other end closing of pressure guiding pipe
And outside space S to be measured, liquid is accommodated in space S to be measured；
Liquid-column height measuring appliance (corresponds to 204 and 205 referred to below), is configured in measurement pressure guiding pipe 1 from impulse point A
The liquid-column height of liquid level in pressure guiding pipe；
Gas inlet tube 2, is configured to introduce gases into the other end of pressure guiding pipe；And
Pressure sensor 3, is configured to measure the gas pressure in pressure guiding pipe.
Alternatively, as shown in figure 1, the lower end of pressure guiding pipe 1 extends in space S to be measured and limits impulse point A, pressure guiding pipe 1
Upper end closed and outside the space S to be measured；Gas inlet tube 2 is configured to introduce gases on the liquid level in the pressure guiding pipe
Side.
It should be pointed out that the liquid-column height referred in the present invention is the effective depth of fluid column in the height direction, that is, exist
In short transverse, the distance between impulse point and liquid level.Therefore, in Fig. 1-2, pressure guiding pipe 1 can be in tilted layout, and can also erect
Straight arrangement.
Thus, a kind of pressure measurement method is it is also proposed, including step：
There is provided pressure guiding pipe 1, the lower end of the pressure guiding pipe extends in space S to be measured and limits impulse point A with by sky to be measured
Interior liquid is incorporated into the pressure guiding pipe, the upper end closed of the pressure guiding pipe and the outside for being located at the space to be measured；
Into the pressure guiding pipe gas is introduced positioned at the space of ullage；
Measure in the pressure and pressure guiding pipe of the gas liquid-column height of the liquid level in from impulse point to pressure guiding pipe；And
The pressure produced by liquid-column height and gas pressure and as impulse point in the space to be measured stream measured
Body pressure.
It is not shown, alternatively, the upper end of pressure guiding pipe extends in space to be measured and limits impulse point, pressure guiding pipe
Lower end closed and outside the space to be measured；Gas inlet tube is configured to introduce gases into below the liquid level in the pressure guiding pipe.
Correspondingly, it is proposed that a kind of pressure measurement method, including：
Pressure guiding pipe is provided, the upper end of the pressure guiding pipe extends in space to be measured and limits impulse point with by space to be measured
Liquid be incorporated into the pressure guiding pipe, the lower end closed of the pressure guiding pipe and positioned at the space to be measured outside；
From the lower end gas is introduced into the pressure guiding pipe；
Measure in the pressure and pressure guiding pipe of the gas liquid-column height of the liquid level in from impulse point to pressure guiding pipe；And
The result of pressure of liquid-column height generation is subtracted by the gas pressure measured as impulse point in space to be measured
Fluid pressure.
Alternatively, the space to be measured is the fused salt loop used in fusedsalt reactor, and the liquid is fused salt；The gas
Body does not chemically react with the fused salt.Further, the gas includes one kind in nitrogen, helium, carbon dioxide.Enter
One step, the gas inlet tube is communicated with source of the gas, and is incorporated into the gas pressure in pressure guiding pipe and can be adjusted.For example,
When liquid level is higher than the scope that can measure of liquid-column height measuring appliance, be such as higher than the light transmitting terminal of highest point in Fig. 2 with
When optical receiving end or the light transmitting terminal and optical receiving end less than the lowest part in Fig. 2, thus it is possible to vary introduce the pressure of gas, with
The height of regulating liquid surface is in suitable scope.
In above-mentioned device for pressure measurement, alternatively, as shown in Fig. 2 the liquid-column height measuring appliance is included along liquid-column height
Multipair smooth transmitting terminal 204 and optical receiving end 205 that direction is sequentially arranged, the light transmitting terminal and optical receiving end of each centering are along impulse
The radial direction of pipe is horizontally opposite to each other, and the light that each centering is sent from light transmitting terminal is received by optical receiving end.Further, often
One light transmitting terminal and each optical receiving end include optical fiber and are arranged on the sleeve pipe of outer fiber；Set on the tube wall of pressure guiding pipe
Multiple through holes corresponding with light transmitting terminal and optical receiving end are equipped with, sleeve pipe is arranged in corresponding through hole；And each sleeve pipe exists
The tube wall welding of the radial outer end of its through hole installed nearby with pressure guiding pipe.Or alternatively, the liquid-column height measuring appliance
Transmitting terminal and receiving terminal on the inwall of end wall including the other end that is arranged on the pressure guiding pipe, light or ultrasonic wave from
The transmitting terminal is reflected by the liquid level towards the liquid level outgoing and enters the optical receiving end.
The characteristic that fused salt easily solidifies is made full use of, the sealing between optical fiber and stainless steel sleeve pipe is solved.Laser occurs and connect
Each single data optical fiber of receiving end is all cased with stainless steel sleeve pipe, and the outside wall surface of sleeve pipe and expansion chamber is connected in a welding manner, melts
Salt can be exosmosed by the gap between optical fiber and sleeve pipe, once through outside with the heat-insulation layer heated, because environment temperature is relatively low
And occur fused salt solidification, serve the effect of self sealss.
Alternatively, as shown in figure 1, above-mentioned device for pressure measurement also includes：Directintermination joint 5, is arranged on space to be measured
Wall on mounting hole in, described one end of the pressure guiding pipe 1 is entered described to be measured through the directintermination joint 5
In space S.Further, the pressure guiding pipe 1 is suitable to change the depth extended in the space to be measured.Thus, can obtain
The distribution of pressure radially, is that velocity analysis and flow rate calculation provide reference.Pressure guiding pipe is such as set to be close to inner-walls of duct face and cloth
The heart in the duct is put, being surveyed by the pressure of measurement can be with pipeline center's fused salt flow velocity, with reference to associated temperature measurement, physical property inquiry and stream
Mechanics correlation theory can obtain fused salt velocity flow profile on measurement section, can be with finally by integration of the flow velocity on cross section
Obtain flow rate of molten salt.
The present invention also proposes a kind of pressure-measuring system, including multiple above-mentioned device for pressure measurement, plurality of pressure
The impulse point of two device for pressure measurement in measurement apparatus respectively positioned at pressure guiding pipe inner wall surface at and pressure guiding pipe pipe
Road center.It is that velocity analysis and flow rate calculation provide reference thus, the distribution of pressure radially can be obtained.
Below using space to be measured be used in fusedsalt reactor fused salt loop, the liquid as fused salt specific example join
Illustrated according to Fig. 1,2.
If fiber optic liquid height meter (corresponding to multipair smooth transmitting terminal 204 and optical receiving end 205) is topmost away from impulse point A distances
L, it is 0 point of liquid level to take impulse point, and height H of the pressure guiding pipe fused salt upper surface apart from impulse point can be measured by fiber optic liquid height meter.
The registration of pressure guiding pipe upper gas pressure sensor 3 is Pa, then measured point fused salt pressure be represented by P=Pa+ ρ gH, wherein ρ are
The density of fused salt, g is acceleration of gravity.Once liquid level, which is shown, reaches L, then suitably to increase the pressure of the top headroom of pressure guiding pipe 1
Power, it is ensured that the accuracy of fused salt level gauging.Measured point fused salt pressure can be obtained according to hydromechanical static equation.Pass through light
Fine liquid level gauge carries out the measurement of pressure guiding pipe fused salt liquid level, then obtains measured point fused salt pressure according to hydromechanical static equation
Power, due to Fibre Optical Sensor fast response time, can realize the seizure of Pressure Fluctuation Signal.
In the specific example of the device for pressure measurement shown in Fig. 1-2, device for pressure measurement includes：Pressure guiding pipe 1, straight-through end
End connector 5, the heat-insulation layer 4 with heating, data, control line lead wire outlet 6, thermal insulation ceramicses ring 7 (prevent that lead is heated excessively, no
Cross lead wire outlet 6 and be not adjacent to be formed space S to be measured pipeline 8 tube wall set in the case of, thermal insulation ceramicses can be not provided with
Ring), table valve 9, pressure sensor 3, air bleeding valve 10, nitrogen cylinder 11, nitrogen pressure-reducing valve 12, stop valve 13, directintermination joint 5 welds
It is connected on pipeline 8, pressure guiding pipe 1 realizes connection and sealing with directintermination joint 5 by cutting ferrule and snap ring, the heat-insulation layer with heating
4 ensure that fused salt does not solidify in pressure guiding pipe.
Because the pressure of measured point fused salt is higher than the top atmospheric pressure of pressure guiding pipe 1, fused salt will be gushed out by pressure guiding pipe 1, press
Contracting upper gas, finally by gas as transmitting medium by pressure signal transmission to pressure sensor 3.In order to measure impulse point
Fused salt pressure, it must be understood that the liquid level of fused salt in pressure guiding pipe 1, devises the pressure guiding pipe of measurable liquid level as shown in Figure 2, it
It is main by lower linking tube 201, it is upper directintermination joint 202, expansion chamber 203, Laser emission end 204, laser pick-off end 205, lower straight
Logical terminal fitting 206, upper connecting tube 207.Lower linking tube 201 is connected with directintermination joint 5, and fused salt will pour in expansion chamber 203, expansion
Chamber sectional area is big compared with lower linking tube 201, it is to avoid influence of the capillarity to measurement.From left side laser occurs for Laser emission end 204,
Fused salt liquid level is the position reached, and laser pick-off end 205 will receive optical signal, high electricity is converted into by follow up device
Flat, once transmitting terminal is flooded by fused salt, then receiving terminal can not obtain optical signal, show low level, by every a pair of transmittings and
Receiving terminal is positioned and numbered, and the liquid level that fused salt in current pressure guiding pipe is analyzed by numbering corresponding low and high level is high
Degree.
Before use, nitrogen pressure-reducing valve 12 is adjusted into rational position first, stop valve 13 is opened, passes through protective gas
(N2) discharge the air in loop.Table valve 9 is opened, starts pump for liquid salts and fills salt to loop, now pass through the reading of pressure sensor 3
Count to operate air bleeding valve 10, adjusted pressure guiding pipe top air pressure in 1 standard atmospheric pressure or so by being vented.
When carrying out the higher loop molten salt pressure measuring of pressure, during operating pressure as described in patent CN101750181A,
By nitrogen cylinder 11 and pressure-reducing valve 12, the boost process for being combined with fused salt loop sets up the air pressure on the top of pressure guiding pipe 2.
Using technical scheme, one of following technique effect can be at least realized：
Using not with fused salt react gas carry out pressure conduction when, can meet transmitting medium high temperature resistant and not with height
The requirement that temperature molten salt chemically reacts so that pressure sensor has good working environment；
The measurement of fused salt liquid level is carried out by optical fiber, fast response time, measurement accuracy is high；
The pressure for the gas being incorporated into by regulation in pressure guiding pipe so that the scope of measurement apparatus application obtains very big
Extension；
By setting directintermination joint on wall and pressure guiding pipe, it can arbitrarily change the depth that pressure guiding pipe inserts pipeline
Degree, obtains the distribution of pressure radially, is that velocity analysis and flow rate calculation provide reference；
By using the characteristic of fused salt self-solidifying to the cold, it can solve to inscribe between sealing between optical fiber and sleeve pipe.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can be changed to these embodiments without departing from the principles and spirit of the present invention.The applicable model of the present invention
Enclose and be defined by the appended claims and the equivalents thereof.
Claims (16)
1. a kind of device for pressure measurement, including：
Pressure guiding pipe, one end of pressure guiding pipe is extended in space to be measured and limits impulse point, and the other end of pressure guiding pipe is closed and is located at
Outside space to be measured, space content to be measured receives liquid；
Liquid-column height measuring appliance, the liquid-column height for the liquid level being configured to measure in pressure guiding pipe in from impulse point to pressure guiding pipe；
Gas inlet tube, is configured to introduce gases into the other end of pressure guiding pipe；And
Pressure sensor, is configured to measure the gas pressure in pressure guiding pipe,
Wherein, the liquid-column height measuring appliance includes the multipair smooth transmitting terminal and light-receiving being sequentially arranged along liquid-column height direction
End, the light transmitting terminal and optical receiving end of each centering is horizontally opposite to each other along the radial direction of pressure guiding pipe, and each centering is sent out from light
Penetrate and hold the light sent to be received by optical receiving end.
2. device for pressure measurement according to claim 1, wherein：
The lower end of pressure guiding pipe extends in space to be measured and limits impulse point, the upper end closed of pressure guiding pipe and positioned at space to be measured
Outside；
Gas inlet tube is configured to the ullage introduced gases into the pressure guiding pipe.
3. device for pressure measurement according to claim 1, wherein：
The upper end of pressure guiding pipe extends in space to be measured and limits impulse point, the lower end closed of pressure guiding pipe and positioned at space to be measured
Outside；
Gas inlet tube is configured to introduce gases into below the liquid level in the pressure guiding pipe.
4. device for pressure measurement according to claim 1, wherein：
The space to be measured is the fused salt loop used in fusedsalt reactor, and the liquid is fused salt；
The gas does not chemically react with the fused salt,
The gas includes one kind in nitrogen, helium, carbon dioxide.
5. device for pressure measurement according to claim 4, wherein：
The gas inlet tube is communicated with source of the gas, and is incorporated into the gas pressure in pressure guiding pipe and can be adjusted.
6. device for pressure measurement according to claim 1, wherein：
The pressure guiding pipe has an enlarged-diameter portion, and enlarged-diameter portion is positioned next to pressure measurement pipeline, and the liquid level is located at described straight
At the expansion section of footpath.
7. device for pressure measurement according to claim 1, also includes：
Heat-insulation layer, around the pressure guiding pipe setting positioned at outside to be measured.
8. device for pressure measurement according to claim 1, wherein：
Each light transmitting terminal and each optical receiving end include optical fiber and are arranged on the sleeve pipe of outer fiber；
Multiple through holes corresponding with light transmitting terminal and optical receiving end are provided with the tube wall of pressure guiding pipe, sleeve pipe is arranged on corresponding logical
In hole；And
Each sleeve pipe is welded near the radial outer end of its through hole installed with the tube wall of pressure guiding pipe.
9. device for pressure measurement according to claim 1, wherein：
The liquid-column height measuring appliance includes the transmitting terminal being arranged on the inwall of the end wall of the other end of the pressure guiding pipe
And receiving terminal, light or ultrasonic wave are reflected by the liquid level from the transmitting terminal towards the liquid level outgoing and enter the light
Receiving terminal.
10. the device for pressure measurement according to any one of claim 1-7, also includes：
Directintermination joint, is arranged in the mounting hole on the wall in space to be measured, and described one end of the pressure guiding pipe passes through institute
State directintermination joint and enter in the space to be measured.
11. device for pressure measurement according to claim 10, wherein：
The pressure guiding pipe is suitable to change the depth extended in the space to be measured.
12. a kind of pressure measurement method, including：
There is provided pressure guiding pipe, the lower end of the pressure guiding pipe extends in space to be measured and limits impulse point with by the liquid in space to be measured
Body is incorporated into the pressure guiding pipe, the upper end closed of the pressure guiding pipe and the outside for being located at the space to be measured, plurality of pressure
The impulse points of two device for pressure measurement in force measuring device is respectively at the inner wall surface of pressure guiding pipe and pressure guiding pipe
Pipeline center；
Into the pressure guiding pipe gas is introduced positioned at the space of ullage；
Measure in the pressure and pressure guiding pipe of the gas liquid-column height of the liquid level in from impulse point to pressure guiding pipe；And by liquid
Pressure and measure gas pressure that pillar height degree is produced and as the Fluid pressure in space to be measured at impulse point.
13. a kind of pressure measurement method, including：
There is provided pressure guiding pipe, the upper end of the pressure guiding pipe extends in space to be measured and limits impulse point with by the liquid in space to be measured
Body is incorporated into the pressure guiding pipe, the lower end closed of the pressure guiding pipe and the outside for being located at the space to be measured, plurality of pressure
The impulse points of two device for pressure measurement in force measuring device is respectively at the inner wall surface of pressure guiding pipe and pressure guiding pipe
Pipeline center；
From the lower end gas is introduced into the pressure guiding pipe；
Measure in the pressure and pressure guiding pipe of the gas liquid-column height of the liquid level in from impulse point to pressure guiding pipe；And
The result for subtracting the pressure that liquid-column height is produced by the gas pressure measured is used as the fluid of impulse point in space to be measured
Pressure.
14. the method according to claim 12 or 13, also including step：
Gas pressure is adjusted to change the position of liquid level in pressure guiding pipe.
15. the method according to claim 12 or 13, wherein：
The space to be measured is the fused salt loop used in fusedsalt reactor, and the liquid is fused salt；
The gas does not chemically react with the fused salt.
16. the method according to claim 12 or 13, also including step：
The distance that regulation pressure guiding pipe is extended in space to be measured.
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| CN201310578163.3A CN104655349B (en) | 2013-11-18 | 2013-11-18 | Device for pressure measurement and pressure measurement method |
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|---|---|---|---|
| CN201310578163.3A CN104655349B (en) | 2013-11-18 | 2013-11-18 | Device for pressure measurement and pressure measurement method |
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| CN104655349A CN104655349A (en) | 2015-05-27 |
| CN104655349B true CN104655349B (en) | 2017-07-18 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136390A (en) * | 2015-08-08 | 2015-12-09 | 昆山泰莱宏成传感技术有限公司 | High-temperature pressure sensor testing device and preparation method therefor |
| CN106932137B (en) * | 2017-03-08 | 2019-05-14 | 清华大学 | A kind of long-range real-time measurement system of fluid pressure |
| CN109000844B (en) * | 2018-06-14 | 2020-11-06 | 王志华 | Pipeline pressure measuring device for thermal power plant |
| CN113465700A (en) * | 2021-06-21 | 2021-10-01 | 中国原子能科学研究院 | System and method for measuring melt level in container |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750181A (en) * | 2008-12-15 | 2010-06-23 | 贵阳铝镁设计研究院 | High-temperature molten salt pressure measuring device |
| CN102274012A (en) * | 2010-06-13 | 2011-12-14 | 衡欣医疗器材股份有限公司 | Pressure detection apparatus for electronic sphygmomanometers |
| CN203177515U (en) * | 2013-04-02 | 2013-09-04 | 淮南中科储能科技有限公司 | Sleeve type high-temperature molten salt heat exchanger |
| CN203561474U (en) * | 2013-11-18 | 2014-04-23 | 国核（北京）科学技术研究院有限公司 | Pressure measurement apparatus and pressure measurement assembly |
-
2013
- 2013-11-18 CN CN201310578163.3A patent/CN104655349B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750181A (en) * | 2008-12-15 | 2010-06-23 | 贵阳铝镁设计研究院 | High-temperature molten salt pressure measuring device |
| CN102274012A (en) * | 2010-06-13 | 2011-12-14 | 衡欣医疗器材股份有限公司 | Pressure detection apparatus for electronic sphygmomanometers |
| CN203177515U (en) * | 2013-04-02 | 2013-09-04 | 淮南中科储能科技有限公司 | Sleeve type high-temperature molten salt heat exchanger |
| CN203561474U (en) * | 2013-11-18 | 2014-04-23 | 国核（北京）科学技术研究院有限公司 | Pressure measurement apparatus and pressure measurement assembly |
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| CN104655349A (en) | 2015-05-27 |
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