CN106500802A - Measurement apparatus - Google Patents

Measurement apparatus Download PDF

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Publication number
CN106500802A
CN106500802A CN201510564590.5A CN201510564590A CN106500802A CN 106500802 A CN106500802 A CN 106500802A CN 201510564590 A CN201510564590 A CN 201510564590A CN 106500802 A CN106500802 A CN 106500802A
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CN
China
Prior art keywords
adapter tube
flowmeter
shell
measurement apparatus
flange
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Pending
Application number
CN201510564590.5A
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Chinese (zh)
Inventor
袁志
高宇
孙月明
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High Almost Finite Co
Micro Motion Inc
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High Almost Finite Co
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Priority to CN201510564590.5A priority Critical patent/CN106500802A/en
Publication of CN106500802A publication Critical patent/CN106500802A/en
Pending legal-status Critical Current

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Abstract

This disclosure provides a kind of measurement apparatus for cryogen, the measurement apparatus include:Flowmeter;Shell, the flowmeter are contained in the enclosure;And adapter tube, the adapter tube is configured to extend through the side wall of the shell and is hermetically coupled with the side wall of the shell, also, the adapter tube is hermetically coupled with the flowmeter, and wherein, the space of the enclosure is in vacuum state.

Description

Measurement apparatus
Technical field
Present disclosure relates to the measurement apparatus of cryogen.
Background technology
The content of this part provide only the background information related to present disclosure, and which may be not Constitute prior art.
Generally, using measurement apparatus, such as flowmeter (this flowmeter can be Coriolis Flowmeter, ultrasonic flowmeter or electromagnetic flowmeter) to sealing conveying liquid cryogen or Medium, such as at ambient pressure the liquid nitrogen of deep cooling to -196 DEG C, deep cooling is to -162 DEG C at ambient pressure Fluid behaviour (for example, the quality stream of LNG (liquified natural gas), liquefied petroleum gas and liquid oxygen etc. Amount and/or volume flow and/or density and/or temperature) when measuring, as flowmeter is in ring In the air of border, thus there is heat via flowmeter and pipeline with surrounding air and hand in cryogen or medium Change, this can make, and cryogen or medium absorb heat from surrounding air and its temperature can rise therewith And gasify, this causes cryogen to assume the state of gas-liquid two-phase when flowmeter is flow through and make Its density reduces, and this further causes measurement result, the density of such as fluid or mass flow or volume There is deviation in flow.Additionally, be connected in the junction at flowmeter and its two ends and with flowmeter Pipe surface occurs frost.
In addition, it usually needs the flowmeter in fluid pipe line carries out periodically checking and calibrating, To guarantee that flowmeter provides the flow measuring data in the range of specific required precision.Generally, pass through By in proving flowmeter (that is, being calibrated to the flowmeter of predetermined accuracy requirement) and fluid line Flowmeter series connection and make the cryogen in fluid line sequentially pass through flowmeter to be calibrated and Proving flowmeter (also referred to as flowmeter calibrating installation) and simultaneously carry out flow measurement to calibrate stream Flowmeter in fluid line.
However, when using flowmeter calibrating installation, as which is in the feelings being connected in fluid line Also surrounding air is exposed under condition, thus the cryogen in fluid line is flowing through flow meter calibrating During device also there is heat via flowmeter calibrating installation and fluid line with surrounding air in cryogen Exchange, this can also make cryogen absorb heat and its temperature from surrounding air can be therewith rising Gasify, this causes cryogen also to assume gas-liquid two-phase when flowmeter calibrating installation is flow through State and reduce its density, this further also causes the measurement result of flowmeter calibrating installation to occur partially Difference, most causes the calibration of the flowmeter in flowmeter calibrating installation fluid pipe line to occur partially at last Difference, so that affect the calibration result (or meter flow calibration factor) of the flowmeter in fluid pipe line. Additionally, being connected in the junction at flowmeter calibrating installation and its two ends and with flowmeter calibrating installation Fluid line surface there is frost.
Thus, there is the measurement that there is more high measurement accuracy or more high measurement accuracy to cryogen Flowmeter in device and fluid pipe line has higher calibration accuracy or higher calibration accuracy Flowmeter calibrating installation demand.
Content of the invention
According to the one side of present disclosure, there is provided a kind of measurement apparatus for cryogen, The measurement apparatus include:Flowmeter;Shell, the flowmeter are contained in the enclosure;And adaptation Pipe, the adapter tube are configured to extend through the side wall of the shell and are hermetically joined with the side wall of the shell Connect, also, the adapter tube is hermetically coupled with the flowmeter, wherein, at the space of the enclosure In vacuum state.
By provided herein is explanation, other applications will be apparent from.It should be understood that this Particular example and embodiment described in part is for illustration purposes only rather than attempts to limit this Scope of the disclosure.
Description of the drawings
Accompanying drawing as described herein is only in order at illustration purpose and is not intended to limit by any way Scope of the present disclosure, accompanying drawing is not necessarily drawn to scale, and can zoom in or out some features with aobvious Show the details of particular elements.In the accompanying drawings:
Fig. 1 is the strabismus stereogram of the measurement apparatus of the embodiment according to present disclosure, wherein, For the ease of observing and measuring device inside and the remainder by protecgulum with measurement apparatus separates.
Fig. 2 is the front perspective view of the measurement apparatus of the embodiment according to present disclosure, wherein, Protecgulum and bonnet are removed.
Fig. 3 is the exploded perspective view of the measurement apparatus of the embodiment according to present disclosure.
Fig. 4 is the sectional view of the measurement apparatus of the embodiment according to present disclosure, wherein protecgulum It is removed with bonnet, also, the region of dotted line is the region for being coated with thermal radiation resistant material.
Fig. 5 is the zoomed-in view of encircled portion A in Fig. 4, it illustrates the holding group of measurement apparatus Part.
Fig. 6 is the sectional view that the line B-B in Fig. 5 is intercepted.
Fig. 7 is the amplification of the first adapter tube of the measurement apparatus of the embodiment according to present disclosure Sectional view.
Fig. 8 is the zoomed-in view of encircled portion C in Fig. 4, wherein in order to be shown more clearly that sealing Enclose and be shown as separating by two flanges.
Specific embodiment
Following description be substantially only exemplary and be not intended to limit present disclosure, application and Purposes.It should be appreciated that in all these accompanying drawings, corresponding reference numeral indicates similar or corresponding Part and feature.
Below with reference to Fig. 1 to Fig. 8 descriptions according to the embodiment of present disclosure for low temperature The essential structure of the measurement apparatus of fluid.
As shown in Figure 1, Figure 2 and Figure 3, according to the measurement apparatus 1 of the embodiment of present disclosure Flowmeter 10, shell 20 and adapter tube 30 is consisted essentially of, wherein, flowmeter 10 is contained in Inside shell 20.Adapter tube 30 be configured to extend through the side wall 23 of shell 20 and with shell 20 Side wall 23 hermetically couple, also, adapter tube 30 is hermetically coupled with flowmeter 10.Shell Space inside 20 is in vacuum state.
This vacuum state is, for example, after assembling flowmeter 10, adapter tube 30 and shell 20 Realized by carrying out vacuumizing to the space inside shell 20.Although being not shown, But the port for being vacuumized is provided with shell 20, and the port is after completing to vacuumize It is can be hermetically sealed.
As described above, the measurement apparatus for cryogen in the embodiment according to present disclosure In 1, it is set in the space of vacuum state by making the flowmeter 10 of measurement apparatus 1, is reduced The heat transfer (or heat exchange) of flowmeter and air ambient during measurement cryogen, this aspect are prevented The gasification of cryogen is stopped, and then has been effectively improved the fluid properties of measurement apparatus, such as flows Amount and the measurement result and certainty of measurement of density, and improve the model of flow rate test to a certain extent The fluid of more low temperature is enclosed, can for example be measured, flowmeter and its connecting pipe is on the other hand prevented Thermal loss, so as to prevent the surface frosting of flowmeter and its connecting pipe.
More specifically, adapter tube 30 includes the first adapter tube 31 and the second adapter tube 32, first fits The first end (being the right-hand end of the first adapter tube 31 in fig. 2) of pipe arrangement 31 is hermetically attached to The input of flowmeter 10, the second end of the first adapter tube 31 (is the first adapter tube in fig. 2 31 left-hand end) it is located at outside shell 20, also, the first end of the second adapter tube 32 is (in figure It is the left-hand end of the second adapter tube 32 in 2) output end of flowmeter 10 is hermetically attached to, the Second end (being the right-hand end of the second adapter tube 32 in fig. 2) of two adapter tubes 32 is located at shell Outside 20.When measuring, cryogen can be from the second end (example of the first adapter tube 31 Such as, the central corridor in the second end) enter and flow through the first adapter tube 31, flowmeter 10 and Two adapter tubes 32 and the second end (for example, the central corridor in the second end) from the second adapter tube 32 Flow out.Especially, flowmeter 10, the first adapter tube 31, the second adapter tube 32 and shell 20 Inwall between space be in vacuum state.
As shown in figure 3, shell 20 includes perisporium (being hereinafter also referred to as side wall) 23 and sealing Be connected to side wall 23 at least one detachable cover, in the present embodiment be, for example, protecgulum 21 and/ Or bonnet 22, at least one detachable cover can be attached sealingly to side wall 23.In present embodiment In, 20 square in shape of shell, but shell 20 can take on a different shape, such as tubular, with suitable Should be with the flowmeter for accommodating different model and species.First adapter tube 31 and the second adapter tube 32 are distinguished Through in side wall 23 opening 231,232 (that is, the first adapter tube 31 passes through opening 231, second 232) adapter tube 32 is entered in shell 20 and is attached sealingly to side wall 23 through opening.For example, It is closed so as to be formed that protecgulum 21 and bonnet 22 are fastened to side wall 23 by bolt (not shown) respectively Shell 20.Alternatively, it is also possible between protecgulum 21 and side wall 23 and bonnet 22 and side wall 23 it Between sealing ring or sealing strip are set, or protecgulum 21 and bonnet 22 are soldered to side wall 23.
In addition, shell 20 can include framework 24, as shown in figure 3, framework 24 is arranged at side wall 23 The interior bulk strength for strengthening shell 20.However, framework can also be not provided with shell 20, only Want the intensity of perisporium and protecgulum and bonnet of shell enough.In addition, shell 20 can be by impermeable Luminescent material, such as stainless steel are made, to prevent visible radiation to inside shell 20, so as to true Thermal radiation does not affect to protect the flowmeter 10 being contained in inside shell 20.
As shown in figures 1 and 3, the first adapter tube 31 is pipeline of the two ends equipped with flange, its In, the first end of the first adapter tube 31 equipped with first flange 311, the of the first adapter tube 31 Two ends equipped with the second flange 312 and the 3rd flange 313 being spaced apart from each other, as shown in Figure 7. The first flange 311 of the first adapter tube 31 is hermetically attached to (for example by securing members such as bolts Hermetically it is attached to) first flange 11 of flowmeter 10, the second flange of the first adapter tube 31 312 be hermetically connected (such as weld) to first on the outer surface of the side wall 23 of shell 20 Housing flange 233 hermetically couples (for example hermetically coupling), such as Fig. 4 by securing members such as bolts And shown in Fig. 7, the 3rd flange 313 of the first adapter tube 31 can with fluid line on flange (not shown) couples.
In addition, as shown in Figures 1 to 4, the second adapter tube 32 is also two ends equipped with flange Pipeline, wherein, the first end of the second adapter tube 32 is equipped with first flange 321, the second adapter tube 32 the second end is equipped with the second flange 322 and the 3rd flange 323 being spaced apart from each other.Second fits The first flange 321 of pipe arrangement 32 is hermetically attached to (for example by securing members such as bolts hermetically Be attached to) second flange 12 of flowmeter 10, the second flange 322 of the second adapter tube 32 with close Feud connection (for example welding) is to the second housing flange on the outer surface of the side wall 23 of shell 20 234 hermetically connection (for example hermetically being coupled by the securing member such as bolt), as shown in Figure 1, Figure 2 and Shown in Fig. 4, the 3rd flange 323 of the second adapter tube 32 can with fluid line on another method Blue (not shown) connection.Flowmeter is coupled with adapter tube by using each flange and will be fitted Pipe arrangement is coupled with the pipeline of fluid line, it is possible to achieve stronger and easier connection.
Additionally, adapter tube 30 is vacuum tube, specifically, the first adapter tube 31 and the second adapter tube 32 is all vacuum tube, i.e. both there is the bimetallic tube of vacuum layer, wherein, in the bimetallic tube Internal layer and outer layer between vacuumize, in case the first adapter tube 31 and the second adapter tube 32 are crossed in fluid stopping Fluid and surrounding air there is heat exchange, so as to prevent the gasification of cryogen, another aspect energy The thermal loss of adapter tube is enough prevented, so as to prevent the surface frosting of adapter tube.In addition, the bilayer The internal diameter of the internal layer of pipe is roughly the same with the input of flowmeter 10 and the caliber of output end, changes speech It, the external diameter of the outer layer of the bimetallic tube is more than the input of flowmeter and the caliber of output end and in stream The internal diameter of internal layer is substantially transitted near gauge, so that fluid is entering from the first adapter tube 31 Become a mandarin gauge 10 when and fluid flow when the second adapter tube 32 is flowed out into from flowmeter 10 The flowing of body is smoothed out and is not fluctuated, and is entered without producing impact to measurement result.
As shown in Fig. 2, Fig. 4 and Fig. 5, measurement apparatus 1 are also included inside shell 20 Component 40 is kept, keeps component 40 to be configured for adapter tube 30 and the flow that will be linked together The roof of shell 20 is fixed, is for example suspended in meter 10 relative to the inwall of shell 20.In addition, keeping Component 40 can be at position of adapter tube 30, the close adapter tube 30 with 10 connection place of flowmeter The inwall of the adapter tube 30 being linked together and flowmeter 10 relative to shell 20 is fixed.Pass through This connection, flowmeter more securely can be connected in shell, so as to further reduce the convection current such as vibration The impact of gauge.
Specifically, component 40 is kept to include the first holding plate 41, the second holding plate 42 and fastening member 43, as shown in Figure 5 and Figure 6.Side wall is each passed through in the first adapter tube 31 and the second adapter tube 32 Opening 231,232 in 23 enter in shell 20 and respectively with the input 11 of flowmeter 10 and After output end 12 hermetically couples, protected with first in the side (left side in Fig. 2) of flowmeter 10 Plate 41 and the second holding plate 42 are held by the tubular portion of the first adapter tube 31, especially with respect to first The remainder of adapter tube 31 is clamped in diametrically less part, and in the first holding plate 41 Worn using fastening member 43, such as bolt after through-hole alignment in interior through hole and the second holding plate 42 Cross above-mentioned through hole and the first holding plate 41 and the second holding plate 42 are fastened to the roof of shell 20, spy It is not the framework 24 for being fastened to shell 20, outer so as to the tubular portion of the first adapter tube 31 to be suspended in The roof of shell 20 or framework 24.In addition, each having in the first holding plate 41 and the second holding plate 42 There is the recess being consistent with the shape of the tubular portion of the first adapter tube 31.
Equally, the opening in side wall 23 is each passed through in the first adapter tube 31 and the second adapter tube 32 231st, in 232 entrance shells 20 and close with the input 11 of flowmeter 10 and output end 12 respectively After the connection of feud, flowmeter opposite side (right side in Fig. 2) with the first holding plate 41 and second Holding plate 42 by the tubular portion of the second adapter tube 32, especially with respect to the second adapter tube 32 its Remaining part point is clamped in diametrically less part, and the through hole and second in the first holding plate 41 After through-hole alignment in holding plate 42 using fastening member 43, such as bolt through above-mentioned through hole and incite somebody to action First holding plate 41 and the second holding plate 42 are fastened to the roof of shell 20, are particularly fastened to shell 20 framework 24, so as to the tubular portion of the second adapter tube 32 to be suspended in the roof or frame of shell 20 Frame 24.
Component 40 is kept to be not limited to above-mentioned ad hoc structure, as long as which can be by be linked together first Adapter tube 31, flowmeter 10 and the second adapter tube 32 are suspended in the roof or framework of shell 20 ?.
As shown in Fig. 2, Fig. 4, Fig. 5 and Fig. 7, the first adapter tube 31 and the second adapter tube 32 Bellows 33 is may each comprise, wherein, bellows 33 can absorb flowmeter 10 and be adapted to first Relative displacement, vibration and the pipe caused because expanding with heat and contract with cold between pipe 31 and the second adapter tube 32 Road stress.As long as in addition, having an adapter tube bag in the first adapter tube 31 and the second adapter tube 32 Bellows is included, because the bellows in an adapter tube can just absorb the stream being linked together Relative displacement, vibration between gauge and the first adapter tube and the second adapter tube and because expanding with heat and contract with cold The pipe stress for causing.Further, since employing the ripple that can absorb tolerance on length dimension Pipe, also allows this measurement apparatus using different model or various sizes of flowmeter.
Bellows 33 is, for example, corrugated stainless steel tubing, absorbs the same of relative shift and vibration to provide When more preferable other performance, such as corrosion resistance and opaqueness are provided.
On the pipeline of flowmeter 10 and on the part being in inside shell 20 of adapter tube 30 partly Or thermal radiation resistant material is fully coated with, as shown in figure 4, wherein, in the big portion of adapter tube 30 Thermal radiation resistant material is all coated with point length and on the pipeline of flowmeter 10.Especially, first Adapter tube 31 includes that the minor diameter pipeline section with the first end, the second adapter tube 32 include having The minor diameter pipeline section of the first end, and the minor diameter pipeline section of the first adapter tube 31, second fit First adapter tube 31 and second that is connected in of the minor diameter pipeline section and flowmeter 10 of pipe arrangement 32 is fitted Part (represented by the region that the enclosed with dashed lines in by Fig. 4 is come) bag between pipe arrangement 32 Thermal radiation resistant material is covered with, so that visible radiation is prevented to flowing through adapter tube 30 and flowmeter 10 cryogen, particularly prevents visible radiation to the minor diameter for flowing through the first adapter tube 31 The cryogen of the minor diameter pipeline section of pipeline section, flowmeter 10 and the second adapter tube 32, and then reduce The heat transfer that produced by heat radiation, particularly reduce by heat radiation produce near flowmeter 10 Heat transfer.The thermal radiation resistant material can be tinfoil paper, aluminium foil, asbestos, carbon fiber, glass fibers Dimension or its sandwich, but thermal radiation resistant material not limited to this, as long as which can be effectively reduced hot spoke Penetrate.
As shown in figure 5, the first adapter tube 31 by the first end between the first adapter tube 31 the O-ring seals S1 between the first flange 11 of the input of one flange 311 and flowmeter 10 Flowmeter 10 is hermetically attached to, also, the second adapter tube 32 is also by between the second adapter tube Between the second flange 12 of the output end of the first flange 321 of 32 first end and flowmeter 10 O-ring seals (not shown, which is roughly the same with the structure of O-ring seals S1) hermetically join Flowmeter 10 is connected to, so as to realize the sealed attachment and the of the first adapter tube 31 and flowmeter 10 Two adapter tubes 32 and the sealed attachment of flowmeter 10.
In addition, as shown in figure 5 and figure 7, cannelure 3111 can be offered in flange 311, And thickness of the depth of cannelure 3111 less than O-ring seals S1 so that by fastening structure When flange 311 and flange 11 are fastened by part, O-ring seals S1 is deformed, so as to by flange 311 and flange 11 be hermetically linked together.Certainly, O-ring seals S1 can also be direct Be interposed between flange 311 and flange 11 to be sealed.Although not shown, in flange This cannelure can also be provided with 321 so that passing through fastening member by flange 321 and method Blue 12 O-ring seals when fastening are deformed, so as to by flange 321 and flange 12 hermetically It is linked together.
In addition, as shown in figure 8, second flange 312 and shell 20 in the first adapter tube 31 O-ring seals S2 can be provided between first housing flange 233, can be with flange 233 Offer cannelure, and thickness of the depth of the cannelure less than O-ring seals S2 so that The squeezed bucklings of O-ring seals S2 when being fastened flange 312 and flange 233 by fastening member Shape, so as to flange 312 and flange 233 to be hermetically linked together.Although additionally, not shown, But the second flange 322 in the second adapter tube 32 and between the second housing flange 234 of shell 20 O-ring seals (not shown, its structure substantially phase with O-ring seals S2 can also be provided with With) so that the O-ring seals quilt when being fastened flange 322 and flange 234 by fastening member Crimp, so as to flange 322 and flange 234 to be hermetically linked together.
Additionally, as shown in figure 4, electric connector 50, such as socket can be provided with shell 20, One end of electric connector 50 is electrically connected with flowmeter 10 and the other end of electric connector 50 can Electric connector, such as plug electrical coordination with control device (not shown).Electric connector 50 Described one end for example by the sensor electricity of cable 51 and flowmeter 10, particularly flowmeter 10 Connection, so that realize the transmission of data, such as detection signal.
In another embodiment of present disclosure, previously described measurement apparatus 1 be for Scene flowmeter calibrating installation that flowmeter is calibrated, the flowrate calibrating device be connected to containing On the fluid line of flowmeter to be calibrated so that the fluid when being calibrated in fluid line will Sequentially pass through flowmeter to be calibrated and the flowmeter calibrating installation.
The flowmeter calibrating installation is calibrated to accurately known first in other test system Then the flowmeter calibrating installation is connected to existing fluid line by acceptable Precision criterion In by the reserved connectivity port of the flowmeter in calibrating fluid pipeline.Specifically, in this embodiment party In formula, the 3rd flange 313 of the first adapter tube 31 is attached to what flowmeter to be calibrated was located The reserved connectivity port of the first of fluid line, the 3rd flange 323 of the second adapter tube 32 is coupled To the fluid line second reserves connectivity port.Subsequently, make the cryogen in fluid line suitable Sequence flows through flowmeter to be calibrated and flowmeter calibrating installation, and controller is subsequently by be calibrated The measured value of the fluid flow that flowmeter is obtained and the fluid flow obtained from flowmeter calibrating installation Measured value be compared, to calibrate the precision of flowmeter to be calibrated or adjust stream to be calibrated The calibration factor of gauge, the wherein calibration factor are used as calibration instrument to be measured (in present embodiment In for the flowmeter to be calibrated in fluid line) direct measurement result coefficient.
Flowmeter due to accommodating in flowmeter calibrating installation is set at the space of vacuum state In and cause its measurement accuracy and precision higher, thus in flowmeter calibrating installation accommodate flow Meter can be precision identical flowmeter with the flowmeter in fluid line, and this can cause to provide standard Reduce the cost of flowmeter calibrating installation while really calibration.Alternatively, flowmeter calibrating installation The flowmeter of middle receiving can adopt than fluid line in the high grade of flowmeter or multiple etc. The flowmeter of level, this allows to the precision for further improving the flow meter calibrating in fluid pipe line And accuracy.With regard to flow meter calibrating method be not present disclosure improvements, thus Present disclosure does not carry out emphasis description to which.
Although described above is the numerous embodiments and many aspects of present disclosure, this area It is to be understood by the skilled artisans that can to some of present disclosure in terms of make further modification and/ Or remodeling.
For example, in certain aspects, adapter tube includes the first adapter tube and the second adapter tube, described The first end of one adapter tube is hermetically attached to the input of the flowmeter, first adapter tube Second end is located at the housing exterior, also, the first end of second adapter tube is hermetically attached to The output end of the flowmeter, the second end of second adapter tube are located at the housing exterior.
For example, in certain aspects, the first flange of the first end of first adapter tube and described The first flange of the first end of two adapter tubes is hermetically attached to the input of the flowmeter respectively Flange and the flange of output end, also, the second flange at the second end of first adapter tube is hermetically It is attached to the first housing flange being arranged on the shell, the of the second end of second adapter tube The second housing flange that be arranged at the shell on is attached to two flange seals.
For example, in certain aspects, first adapter tube include being spaced apart with its second flange, The 3rd flange coupled with fluid line is treated, also, second adapter tube includes and its second flange Spaced apart, treat the 3rd flange that couples with fluid line.
For example, in certain aspects, first adapter tube and/or second adapter tube include ripple Pipe.The bellows is, for example, corrugated stainless steel tubing.
For example, in certain aspects, on the pipeline of the flowmeter and the adapter tube is in institute State.The thermal radiation resistant Material is, for example, tinfoil paper, aluminium foil, asbestos, carbon fiber, glass fibre or its sandwich
For example, in certain aspects, the shell includes at least one dismountable lid, described at least One dismountable lid can be attached sealingly to the side wall.The shell is for example by light-proof material Make, the light-proof material is, for example, stainless steel.
For example, in certain aspects, the measurement apparatus also include the holding positioned at the enclosure Component, the holding component are configured for the adapter tube that will be linked together and the flow Meter is fixed relative to the inwall of the shell.
For example, in certain aspects, the holding component is in the adapter, the close adaptation By the adapter tube being linked together and the stream at device and the position of the flowmeter connection place Gauge is fixed relative to the inwall of the shell.
For example, in certain aspects, electric connector is provided with the shell, the electric connector One end is electrically connected with the flowmeter and the other end of the electric connector can be with control device Electric connector electrical coordination.
For example, in certain aspects, the adapter tube is the bimetallic tube with vacuum layer.
For example, in certain aspects, the measurement apparatus are for calibrating to flowmeter at the scene Flowmeter calibrating installation, wherein, the flowmeter calibrating installation is connected to containing flow to be calibrated On the fluid line of meter so that the cryogen when being calibrated in fluid line will be sequentially passed through and be treated The flowmeter of calibration and the flowmeter calibrating installation.
Although here has described the various embodiments of present disclosure in detail, it should be appreciated that, Present disclosure is not limited to the specific embodiment for describing in detail here and illustrating, without departing from this May be effected by one skilled in the art in the case of the connotation of disclosure and scope other Modification and remodeling.All these modifications and remodeling are each fallen within scope of the present disclosure interior.

Claims (16)

1. a kind of measurement apparatus (1) for cryogen, measurement apparatus (1) includes:
Flowmeter (10);
Shell (20), it is internal that flowmeter (10) are contained in the shell (20);And
Adapter tube (30), adapter tube (30) are configured to extend through the side of the shell (20) Wall (23) and hermetically couple with side wall (23) of the shell (20), also, described Adapter tube (30) is hermetically coupled with the flowmeter (10),
Wherein, described shell (20) internal space is in vacuum state.
2. according to claim 1 to measurement apparatus (1), wherein, described adapter tube (30) wrap Include the first adapter tube (31) and the second adapter tube (32), the first end of the first adapter tube (31) The input of the flowmeter (10) be hermetically attached to, the second of the first adapter tube (31) End is located at the shell (20) outside, also, the first end sealing of second adapter tube (32) Be attached to the output end of the flowmeter (10), the second end position of the second adapter tube (32) Outside in the shell (20).
3. according to claim 2 to measurement apparatus (1), wherein, the first adapter tube (31) The first end first flange (311) and the first end of second adapter tube (32) First flange (321) is hermetically attached to the flange of the input of the flowmeter (10) respectively (11) and the output end flange (12), also, described the of first adapter tube (31) The second flange (312) at two ends is hermetically attached to the first shell being arranged on the shell (20) Flange (233), second flange (322) sealing at second end of the second adapter tube (32) Be attached to the second housing flange (234) being arranged on the shell (20).
4. according to claim 3 to measurement apparatus (1), wherein, the first adapter tube (31) Including being spaced apart with its second flange (312), treat the 3rd flange (313) coupled with fluid line, Also, the second adapter tube (31) include being spaced apart with its second flange (322), treat and stream 3rd flange (323) of fluid line connection.
5. according to claim 2 to measurement apparatus (1), wherein, the first adapter tube (31) And/or described second adapter tube (32) include bellows (33).
6. according to claim 5 to measurement apparatus (1), wherein, bellows (33) are Corrugated stainless steel tubing.
7. according to claim 1 to measurement apparatus (1), wherein, flowmeter (10) On pipeline and the adapter tube (30) is on the internal part of the shell (20) partly Or fully it is coated with thermal radiation resistant material.
8. according to claim 7 to measurement apparatus (1), wherein, the thermal radiation resistant material is Tinfoil paper, aluminium foil, asbestos, carbon fiber, glass fibre or its sandwich.
9. measurement apparatus (1) according to any one of claim 1 to 8, wherein, described Shell (20) includes at least one dismountable lid (21,22), at least one dismountable lid (21,22) can be attached sealingly to side wall (23).
10. measurement apparatus (1) according to any one of claim 1 to 8, wherein, institute State shell (20) to be made up of light-proof material.
11. measurement apparatus (1) according to claim 10, wherein, the light-proof material is Stainless steel.
12. measurement apparatus (1) according to any one of claim 1 to 8, wherein, institute Stating measurement apparatus (1) also includes the holding component (40) internal positioned at the shell (20), described Holding component (40) is configured for the adapter tube (30) that will be linked together and the stream Gauge (10) is fixed relative to the inwall of the shell (20).
13. measurement apparatus (1) according to claim 12, wherein, holding component (40) Couple with the flowmeter (10) in the adapter (30), the close adapter (30) Will be relative to the adapter tube (30) being linked together and the flowmeter (10) at the position at place Fix in the inwall of the shell (20).
14. measurement apparatus (1) according to any one of claim 1 to 8, wherein, institute State and on shell (20), be provided with electric connector (50), the one end of electric connector (50) with described The other end of flowmeter (10) electrical connection and the electric connector (50) can be with control device Electric connector electrical coordination.
15. measurement apparatus (1) according to any one of claim 1 to 8, wherein, institute It is the bimetallic tube with vacuum layer to state adapter tube (30).
16. measurement apparatus (1) according to any one of claim 1 to 8, wherein, institute It is the flowmeter calibrating installation for being calibrated to flowmeter at the scene to state measurement apparatus (1), wherein, The flowmeter calibrating installation is connected on the fluid line containing flowmeter to be calibrated so that entered Cryogen during row calibration in fluid line will sequentially pass through flowmeter to be calibrated and the stream Gauge calibrating installation.
CN201510564590.5A 2015-09-07 2015-09-07 Measurement apparatus Pending CN106500802A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN111033191B (en) * 2017-08-30 2022-08-02 高准有限公司 Detecting and identifying changes in a vibratory meter

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