CN1942743A - Apparatus for controlling temperature of an inline measuring device - Google Patents
Apparatus for controlling temperature of an inline measuring device Download PDFInfo
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- CN1942743A CN1942743A CN 200580011373 CN200580011373A CN1942743A CN 1942743 A CN1942743 A CN 1942743A CN 200580011373 CN200580011373 CN 200580011373 CN 200580011373 A CN200580011373 A CN 200580011373A CN 1942743 A CN1942743 A CN 1942743A
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Abstract
The disclosed device comprises at least one heat exchanger (30), which is fixed to an in-line measuring device and which, when operating, is traversed at least temporarily by a temperature-control fluid that transports heat, in addition to fixing means (50, 60), which fasten the heat exchanger (30), in particular in a detachable manner, to the exterior of the in-line measuring device (1). The heat exchanger (30) comprises a curved internal wall (32), configured in the form of a groove or shell, whose surface makes contact with some exterior sections of the in-line measuring device (1), in addition to an external wall that is connected to the internal wall (31). The external wall (31) is connected to the internal wall (32) by means of an edge connection seam (90), which runs along an edge region and is impermeable to the temperature-control fluid and by means of a plurality of internal connection points (80) in the form of dots or rings, which are arranged at a distance from one another in an inner region that is at least partially enclosed by the edge connection seam (90). At least one cavity (H), which conducts the temperature-control fluid and comprises a plurality of interconnecting sections, is configured between the internal wall (32) and the external wall (31), said cavity being integrated into the temperature-control conduit system by means of orifices (33A, 34A) that open into the cavity.
Description
Technical field
The present invention relates to a kind of temperature controlled device that is used for the on-line measurement instrument, this on-line measurement instrument has at least one insertion process pipeline and is used to guide the measuring tube of process fluid to be measured.The invention still further relates to a kind of method that is applicable to the heat exchanger of this device and makes this heat exchanger.
Background technology
In the industrial process measuring technique, particularly in chemical process robotization or processing operating aspect, field-mounted process measurement instrument and field measuring instrument promptly, make their near process, to produce the measured value signal of represents physical measurand.
In order to measure the physical measurement variable, such as the quality of the medium that transmits in the pipeline and/or volumetric flow rate, density, viscosity etc., frequent use measurement instrument, they utilize physics-electrical measurement transmitter and connected measurement mechanism electron device to influence the conversion of the physics of measurand to electricity.Measuring transducer inserts the pipeline that transmits medium, this transmitter thereby medium is flowed through during operation.In order to detect these measurands, this Process meter (being called the on-line measurement instrument here) often has measuring transducer, and it has at least one and is directly installed on ducted measuring tube.Those skilled in the art know the example of this on-line measurement instrument, describe to some extent in following document: US-B 66 91 583, US-B 64 50 042, US-B 63 54 154, US-B63 52 000, US-B 63 08 580, US-A 60 06 609, US-A 60 03 384, US-A 5,979 246, US-A 58 50 039, US-A 57 96 011, US-A 56 02 345, US-A 53 01557, US-A 47 68 384, WO-A 03 095 950, WO-A 03 095 949 or WO-A95 16 897.The example of measurand comprises mass rate, density, viscosity, pressure or the temperature etc. of liquid, powder, steam or gas process medium.
For the measurand of the detection of mainly analyzing usually, the Process meter of described type also links together by the data transmission system that is connected to the measurement instrument electron device usually and/or is connected to suitable process computer.Measured value signal is by for example via (4～20mA) current returns and/or digital data bus are sent to other Process meter and/or process computer.In this case, what can be used as data transmission system is the field bus system that is in particular serial, such as PROFIBUS-PA, FOUNDATION FIELDBUS, and corresponding host-host protocol.The measured value signal of transmission can be further processed in process computer, and for example visual on monitor, and/or be converted to the control signal that is used for process topworks (for example solenoid valve, motor etc.) as corresponding measurement result.In order to hold the measurement instrument electron device, this Process meter also comprises electric-device housing, its such as in US-A 63 97 683 or WO-A 00 36 379 record, can be away from Process meter or coupled by flexible cable, perhaps, be set directly at measuring transducer or independently hold on the measuring transducer shell of measuring transducer as record in EP-A 903 651 or EP-A1 008 836.For example shown in EP-A 984 248, US-A 45 94 584, US-A 47 16770 or the US-A 63 52 000, electric-device housing is also through being usually used in additionally holding some mechanical organs of measuring transducer, such as at the film of operated device mechanical deformation, bar-shaped, shelly or tubulose deformation or vibrating elements; About this point, referring to US-B 63 52000 above-mentioned.
Because range of application widely, the on-line measurement instrument with vibration-type measuring transducer has been used for the medium that measuring channel flows.The measuring tube that these oscillating mode transmitters use at least one to vibrate during operation.Cause mechanical reactance in the transmitter medium of flowing through therein of vibration, for example corresponding to the Coriolis force of mass rate, corresponding to the inertial force of Media density and/or corresponding to the friction force of viscosity.This on-line measurement instrument and their mode of operation be for those skilled in the art know and detailed description: US-B 66 91 583 for example arranged in following document, US-B 64 50 042, US-B 63 54 154, US-B 63 08 580, US-A 60 06 609, US-A 59 79 246, US-A 58 50 039, US-A 57 96 011, US-A 56 02 345, US-A 53 01 557, US-A 48 76 898, US-A 47 68 384, WO-A 03 09 5950, WO-A 03 095 949, WO-A 02 088 641 or WO-A 95 16897.
For boot media, this vibration-type measuring transducer comprises the measuring tube that at least one holds in for example tubulose or box-like supporting frame.Measuring tube has crooked or straight pipeline section, and the motor actuator device drives it with suitable mode of oscillation vibration, to produce aforementioned reacting force during operation.In order to detect the vibration of pipeline section, measuring transducer also comprises sensor device, and its motion for the pipeline section of vibration is reacted.Sensor device has physics-electronics, the osciducer of normally electronic or optoacoustic-electronics, and it sends the oscillation measurement signal of the local oscillation of representing measuring tube.
At least one measuring tube and driver and sensor device are centered on by casing cover, and casing cover is connected to supporting frame, particularly be welded to it or integrated with it.The measuring transducer shell of Xing Chenging also is used to protect measuring tube, driver and sensor device and other to be positioned at inner element and is not subjected to external environment condition for example dust or the influence of water smoke and the acoustic radiating that is used to suppress measuring transducer except being used to hold at least one measuring tube like this.
For the situation of on-line measurement instrument as the coriolis mass flowmeters installation, the measurement instrument electron device repeats definite oscillation measurement phase difference between signals of sending from the osciducer of two each intervals, and the measurement instrument electron device sends measured value signal at its output terminal, it is corresponding to the time response of the phase differential of determining, the measured value of representation quality flow.In addition, as what in above-mentioned document WO-A 95/16897, US-A 45 24 610 or US-A 41 87 721, put down in writing, this on-line measurement instrument can be measured the instantaneous density of flow media based at least one the frequency in the oscillation measurement signal that is sent by sensor device.In addition, it is long-pending that this on-line measurement instrument can also directly be measured the viscosity of medium and/or the viscosity-density of the measuring tube that is arranged in vibration; About this point, especially referring to US-B 66 51 513, US-A 55 31126, US-A 52 53 533, US-A 45 24 610 or WO-A 95/16897.In addition; for the compensation for temperature effect that in oscillation measurement, may need; usually also with suitable manner, for example utilize the temperature sensor that is arranged on the measuring tube and/or on the shell, directly the temperature of each element of the temperature of measuring media and/or measuring transducer.
When in testing medium (for example Jia Re hydrocarbon etc.) will as far as possible accurately remain on the situation of predetermined temperature range, using the on-line measurement instrument, often need be with suitable manner, for example by introducing or discharge the temperature that heat is controlled online measurement instrument.In order to control the temperature of online measurement instrument, that is, in order to increase or to discharge heat, verified such instrument is successful, it is combined in on-the-spot installation and guides in the suitable temperature controlling plumbing fixtures system of suitable temperature control fluid, and temperature control fluid for example is water, water vapor, wet goods.This device that is used to control the temperature of online measurement instrument can obtain from market already.
A kind ofly can be considered to represent well present common temperature control equipment from the device that the applicant obtains, it for example schematically shows as Fig. 1 and 2, have two heat exchangers, each heat exchanger has the cavity that can be connected to temperature controlling plumbing fixtures system.These cavitys can utilize suitable setting tool to be installed in the on-line measurement gauge external relative to one another.In this case, because measuring principle is directly installed on the measuring transducer shell.In two heat exchangers each all has inwall, and it is at least partially in outer surface level contact on-line measurement instrument and correspondingly corresponding to the outline of on-line measurement instrument.Basically box-like outer wall is welded on the inwall, is used for forming betwixt cavity.In order to control the temperature of online measurement instrument, two cavitys have their temperature control fluid of flowing through during operation.
A shortcoming of this temperature control equipment is, the design volume of cavity of holding temperature control fluid is very bad.Shown in the size and dimension of cavity cause temperature control equipment to have very large thermal inertia for the temperature change ability that acts on inwall in the cavity, thereby have low-down reaction dynamic perfromance.In addition, in cavity, form significant dead band, almost not circulation therein of root of temperature control fluid.And, do not guarantee flowing of temperature control fluid.Because these factors, this device often has the low-down thermal efficiency for relatively low heating/cooling power, and in fact, this temperature map of being determined by the experiment that shows among Fig. 3 has obtained confirmation.In addition, this device also has very large weight usually, can reach temperature want controlled on-line measurement instrument nominal titre 100%, that is, about 100kg or more.In addition, the very unwelcome outer wall of shape has bigger surf zone, should be noted that aspect heat insulation trap heat flows.
Another shortcoming of this temperature control equipment is, they have quite low nominal resistance to pressure, for example as shown in Figure 4, in the situation for the on-line measurement instrument of nominal diameter DN≤100mm, the nominal resistance to pressure of said apparatus can increase and obviously reduce along with temperature.In addition, the larger volume of cavity usually obviously surpasses 20l, and this causes the requirement of the resistance to pressure of the heat exchanger used and strength test higher.As a result, the use of this device only can be used for relatively low temperature usually, for example is lower than 200 ℃, and/or lower pressure in the temperature control system, for example is lower than the pressure of 3bar.
The temperature control equipment of each described type is very complicated, makes them only can be used for the short run manufacturing, or makes individual unit.
Summary of the invention
So, the purpose of this invention is to provide a kind of temperature controlled device that is used for the on-line measurement instrument, and the heat exchanger that is applicable to this device, it has in higher resistance to pressure and stable on heatingly has higher thermal efficient simultaneously.In addition, this device should be easy to make also thereby also be applicable to a large amount of productions.
In order to realize this target, the invention reside in a kind of temperature controlled device that is used for the on-line measurement instrument, this measurement instrument has at least one insertion process pipeline and is used to guide the measuring tube of process fluid to be measured, and this device comprises:
-at least one is fixed on first heat exchanger on the on-line measurement instrument, and it is flowed through by the temperature control fluid that is used for transfer heat during operation at least discontinuously; With
-setting tool, be used for at least one first heat exchanger particularly external stability releasably in the on-line measurement instrument;
-wherein heat exchanger has inwall and outer wall fixed thereon, special geosyncline shape of this inwall or plate-like arch upward, from the outside to small part plane contact on-line measurement instrument;
-wherein outer wall links to each other with inwall by the edge attachment weld that is used for seal temperature control fluid that distributes along fringe region and the inside link position by a plurality of particularly point-like or ring-type, these inner link positions are arranged in the interior zone that is centered on by the edge attachment weld to small part at each interval, thereby form at least one cavity between inner and outer wall, it has a plurality of parts that communicate with each other and is used to guide temperature control fluid; And
-wherein this cavity connects the temperature controlling plumbing fixtures system that enters the guiding temperature control fluid by the opening that feeds wherein.
In addition, the invention reside in a kind of heat exchanger that is used for the on-line measurement instrument that particularly is applicable to said apparatus, this measurement instrument has at least one can insert the ducted measuring tube of process that is used to guide process fluid to be measured, and this heat exchanger comprises at least two heat exchanger plates:
-wherein particularly inside first heat exchanger plate that arches upward of groove shape or plate-like is suitable for during operation from the outside at the contact area that can be scheduled to small part plane contact on-line measurement instrument, and thereby form the inwall of heat exchanger, and
-wherein be fixed on the outer wall that outside second heat exchanger plate on first heat exchanger plate forms heat exchanger,
-wherein, two heat exchanger plates are connected together by the edge attachment weld that distributes along fringe region and the inside link position by a plurality of particularly point-like or ring-type, these inner link positions are arranged in the interior zone that is centered on by the edge attachment weld to small part at each interval, thereby form the cavity that at least one is surrounded and had the part that communicates with each other by two heat exchanger plates; And
-its cavity can enter temperature controlling plumbing fixtures system by the opening that the is provided with connection that feeds wherein at least one heat exchanger plate, this system bootstrap is used to transmit the temperature control fluid of heat.
In addition, the invention reside in a kind of method that is used to make this heat exchanger, this method may further comprise the steps:
-at least one first opening of first plate member generation that is used for making one of heat exchanger plate, be used for heat exchanger is connected to temperature controlling plumbing fixtures system;
-first plate member is placed on second plate member that is used to make one of heat exchanger plate equally, the thickness of slab of second plate member is different with the thickness of slab of first plate member especially;
-by welding the particularly plate member of two stacks of laser bonding, produce edge attachment weld and inner link position;
-by first opening, with particularly basic incompressible fluid, particularly water, wet goods are introduced in remaining cavity between two plate member connected to one another;
-the fluid of filling in cavity applies static pressure, and this pressure surpasses the static pressure of surrounding environment, particularly surpasses 100bar, makes the expansion that starts cavity; And
-applied the fluid expansion cavity of pressure by utilization, and the main material of one of two plate member of plastic deformation.
In first embodiment of device of the present invention, first heat exchanger power basically is fixed on the on-line measurement instrument ordinatedly.
In the second embodiment of the present invention, device also comprises second heat exchanger, basic second heat exchanger identical of structure particularly with first heat exchanger, wherein setting tool also be used for second heat exchanger particularly external stability releasably in the on-line measurement instrument.
In the 3rd embodiment of device of the present invention, the power that setting tool is used for two heat exchangers cooperates fixing.
In the 4th embodiment of device of the present invention, setting tool section construction at least is the integration component of first and/or second heat exchanger.
In the 5th embodiment of device of the present invention, two heat exchangers utilize setting tool mechanical connection each other.
In the 6th embodiment of device of the present invention, two heat exchangers are arranged on the on-line measurement instrument relative to one another.
In the 7th embodiment of device of the present invention, the edge attachment weld is self-enclosed.
In first embodiment of heat exchanger of the present invention, outside second heat exchanger plate has particularly and the corresponding a plurality of zones of the number of inner attachment weld, there, the material of second heat exchanger plate is made it outwardly-bent enduringly to form the cavity between two heat exchanger plates by plastic deformation.
In second embodiment of heat exchanger of the present invention, at least one is fixed at least one of two heat exchanger plates by the inlet nozzle that first opening feeds cavity, and heat exchanger can particularly releasably link to each other with the first fluid pipeline of guiding temperature control fluid by this inlet nozzle.
In the 3rd embodiment of heat exchanger of the present invention, inlet nozzle is fixed on outside second heat exchanger plate.
In the 4th embodiment of heat exchanger of the present invention, at least one is fixed at least one of two heat exchanger plates by the outlet nozzle that second opening feeds cavity, and heat exchanger can particularly releasably link to each other with second fluid line of exhaust temperature control fluid by this outlet nozzle.
In the 5th embodiment of heat exchanger of the present invention, outlet nozzle is fixed on outside second heat exchanger plate.
In the 6th embodiment of heat exchanger of the present invention, inner at least attachment weld, particularly also having the edge attachment weld is laser welded seam.
In the 7th embodiment of heat exchanger of the present invention, one of at least by stainless steel, particularly the high-quality steel is made in two heat exchanger plates.
In the 8th embodiment of heat exchanger of the present invention, the thickness of slab of inner first heat exchanger plate is different with the thickness of slab of outside second heat exchanger plate.
In the 9th embodiment of heat exchanger of the present invention, the thickness of slab of first heat exchanger plate is greater than the thickness of slab of second heat exchanger plate.
In first embodiment of method of the present invention, also comprise step: deformation by this way, twisted plate parts particularly, make plate member to small part as inner first heat exchanger plate have with the on-line measurement instrument on the corresponding spatial form of outer shape of contact area.
In second embodiment of method of the present invention, also comprise step:
-inlet nozzle or outlet nozzle are fixed on first plate member, make it feed first opening; And
-pressure line of fluid is connected on the inlet or outlet nozzle fixing on the plate member.
In the 3rd embodiment of method of the present invention, also comprise step:
-in one of two plate member, make at least one second opening, be used for heat exchanger is connected to temperature controlling plumbing fixtures system; And
-after fluid is introduced the step of cavity, one of two openings of densification ground sealing.
In the 4th embodiment of method of the present invention, also comprise step:
-inlet nozzle or outlet nozzle are fixed on first plate member, make it communicate with cavity by first opening; With
Be sealed in to-densification inlet nozzle or outlet nozzle fixing on the plate member.
In the 5th embodiment of method of the present invention, fixedly the step of inlet nozzle or outlet nozzle comprises bending and/or the step at the edge of first opening that curls on first plate member.
In the 6th embodiment of method of the present invention, on first plate member fixedly the step of inlet nozzle or outlet nozzle comprise with the edge of first opening at least pointwise be fixed on second plate member step on the part relatively.
The outstanding feature of device of the present invention is that because the volume of cavity is very little, contact area is relatively large, and especially, has the very high thermal efficiency under high heating power.Therefore, this device has relatively low weight, approximately be one type of prior art syringe above-mentioned weight 10%, be starkly lower than 30kg.The heat delivery surface of outer wall can be equally very little.In addition, even device of the present invention also has very high resistance to pressure under the temperature far above 300 ℃.In addition, the dead band that in cavity, does not almost have the circulation of temperature control fluid to be hindered.In addition, the optimization of flowing of temperature control fluid can realize in very simple mode by arranging inner link position suitably.
Description of drawings
Explain the present invention in detail according to embodiment and accompanying drawing now, shown preferred embodiment in the accompanying drawing.In each accompanying drawing, the parts that function is identical have identical Reference numeral, still, and repeat reference numerals in the figure of back just whenever necessary only.
Fig. 1,2 schematically illustrates the temperature controlled device that is used for the on-line measurement instrument well known in the prior art;
Fig. 3,4 has shown for Fig. 1,2 device experiment established data;
Fig. 5,6 schematically illustrates the embodiment of the temperature controlled device of the on-line measurement instrument of utilizing heat exchanger;
Fig. 7-10 has shown the details of the on-line measurement instrument that is applicable to Fig. 5,6 device;
Figure 14-17 has shown the element and the details of the heat exchanger that is applicable to Fig. 5,6 device; With
Figure 18,19 has shown the measurement data of determining for Fig. 5, the experiment of 6 device.
Embodiment
Fig. 5 and 6 has shown the temperature controlled device of the Process meter 1 that is used to be embodied as the on-line measurement instrument.At least one measurand of physics particularly that Process meter 1 is used for detecting medium that pipeline guides, for example mass rate, density and/or viscosity, and it is mapped as the measured value signal of instantaneous this measurand of representative; Pipeline is not shown here.An example utilization of on-line measurement instrument preferably is contained in the vibration-type measuring transducer 10 in the measuring transducer shell 7,6 and utilizes the measurement mechanism electron device 20 that preferably is contained within the electric-device housing 9 and is electrically connected with measuring transducer 10 to detect measurand.This device be used for the temperature of on-line measurement instrument and thereby the temperature maintenance of the medium that also will guide by the on-line measurement instrument within predetermined temperature range.
For boot media, this measuring transducer comprises the measuring tube that at least one communicates with pipeline, and this measuring tube can oscillatorily be contained in the supporting frame.During operation, as common in the situation of this measuring transducer, make measuring tube with suitable mode of oscillation vibration, produce sufficiently high and the corresponding reacting force of measurand, for example Coriolis force, accelerating force and/or friction force in the feasible fluid of flowing through wherein.These power act on the measuring tube of vibration in the mode that can measure (that is, but can by sensor and electronic analysis), for example act on the oscillation form and/or the oscillation frequency of measuring tube.In order to drive measuring tube, measuring transducer 1 comprises the vibratory stimulation device 113 that at least one is particularly electronic.It is used for the excitation power P that presents from measurement instrument electron device 20
ExcBe converted to the exciting force F of this for example pulsation or harmonic wave
ExcThereby, the suitable vibration that it acts at least one measuring tube and produces measuring tube.Exciting force F
ExcCan for example utilize electric current and/or voltage regulator circuit and on amplitude, obtain adjusting with manner known in the art, and for example utilize phaselocked loop and controlled on frequency; About this point, referring to US-A 48 01 897.That be used as measuring-signal in the situation of vibration-type measuring transducer is oscillation measurement signal S114 and/or the S115 that utilizes sensor device to produce, and it is suitable for representing the vibration of at least one measuring tube.Especially, the oscillation measurement signal of this vibration of the measuring tube of the one or more representatives of the known use of those skilled in the art vibration is determined mass rate, density and/or viscosity, and thereby need not further explanation here.About example, with reference to EP-A 1 291639, US-B 66 51 513, US-B 65 13 393, US-A 60 06 609, US-A 56 87 100, US-A 56 48 616, US-A 55 97 949, US-A 53 59 881, US-A 53 17 928, US-A 52 95 084, US-A 49 96 871, US-A 49 84 472, US-A 48 76 879, US-A 45 24 610 or WO-A 9516897.
Have in particular as an embodiment of the on-line measurement instrument of the vibration-type measuring transducer of Coriolis mass and flow, density and/or viscosity transmitter in Fig. 7-10, have shown and below explain together.Other suitable embodiment form of vibration-type measuring transducer for example has disclosed in following document: US-B 66 91 583, US-B 64 50 042, US-B 63 54154, US-B 63 08 580, US-A 60 06 609, US-A 59 79 246, US-A 58 50 039, US-A 57 96 011, US-A 56 02 345, US-A 53 01 557, US-A 47 68 384, WO-A 03 095 950, WO-A 03 095 949 or WO-A 95 16 897.
Here among the embodiment of Xian Shiing, measuring transducer 1 comprises the first crooked measuring tube 4, clearly finds out from Fig. 9 and 10, and it has the first straight pipeline section 101a and have the second straight pipeline section 101b at outlet side at entrance side.But two straight pipeline section 101a, 101b are via the arc with predetermined space shape, and for example the pipeline section 101c of circular arc links together, and directed in fact so each other, make 4 of measuring tubes become a flat surfaces.The material of measuring tube 4 can be actually any material that is generally used for this measuring tube, stainless steel for example, titanium, tantalum or zircaloy etc.Replacing the basic of demonstration here is the measuring tube 4 of V-arrangement, in fact can use all other measuring tubes that are applicable to this on-line measurement instrument.For example from the following document of quoting at first, also can obtain other suitable space form of measuring tube 4: US-A 57 31527, US-A 53 01 557, US-A 48 95 030, WO-A 01,/33 174 or WO-A 00,/57 141.
As shown in Figure 9, measuring tube 4 feeds inlet pipe fitting 103 and feeds outlet pipe fitting 104 with endpiece with inlet end.In the situation of mounted measurement instrument, inlet pipe fitting 103 and outlet pipe fitting 104 respectively with guiding fluid and normally straight pipeline entrance side partly partly link to each other with outlet side.So, two pipe fittings 103,104 preferably be in alignment with each other and with the virtual measuring transducer longitudinal axis A that is connected two pipe fittings
1Alignment.Have advantage, measuring tube 4 and entrance and exit pipe fitting 103,104 can be by single tubular semifinished the making of appropriate length.
Will releasably be assembled into the situation of pipeline for the measuring tube transmitter, inlet pipe fitting 103 also is formed with first flange 2, and outlet pipe fitting 104 is formed with second flange 3, and wherein flange 2,3 also is fixed on the supporting frame 6.Replace utilizing flange 2,3, measuring transducer 1 can also be with alternate manner well known to those skilled in the art, for example utilizes threeway connection or spiral to connect and is connected to above-mentioned pipeline; If desired, inlet pipe fitting 103 and export pipe fitting 104 and can also for example utilize welding or brazing and directly link to each other with pipeline.
Except first measuring tube 4, the measuring transducer 1 among the embodiment shown in also comprises particularly second measuring tube 5 identical and parallel with measuring tube 4 here, and it is flowed through by testing medium equally in operation and can vibrate equally.For this reason, in the measuring transducer of embodiment, inlet pipe fitting 103 feeds inlet distribution member 105, outlet pipe fitting 104 feeds outlet distribution member 106, thereby measuring tube 4 communicates with the pipeline that is connected via entrance and exit pipe fitting 103,104 and entrance and exit distribution member 105,106 during operation.Similarly, measuring tube 5 also links to each other with pipeline via entrance and exit distribution member 105,106.If desired, can be for example by measuring tube 101,102 is utilized at least one first node dish 109 and utilizes at least one Section Point dish 110 mechanical connection each other at outlet side at entrance side in the common mode of this measuring transducer, and minimize the possible mechanical stress that the measuring tube 101,102 by vibration causes in inlet pipe fitting 103 and outlet pipe fitting 104.Here should be noted that, replace having the measuring transducer of two measuring tubes of flowing through by testing medium during operation, can also use the vibration-type measuring transducer that only utilizes a measuring tube, such as the transmitter of in US-A 60 06 609, US-A 55 49 009 or US-B 66 66 098, describing.
At last, measuring tube 4,5 is centered on by the shell that is preferably metal, and this shell is made of supporting frame 6 and casing cover 7.Shell is used for the internal part with respect to external environment influence (such as dust or water smoke) protection measuring transducer 1 on the one hand, such as measuring tube 4, excitation and sensor device etc.On the other hand, shell also is used for for example in the situation of possible danger, the fluid that flows out being remained on enclosure as far as possible fully, until the maximum overpressure of needs owing to forming crackle or explosion at measuring tube 4 or measuring tube 5.In addition, the acoustic emission that is caused by vibration can utilize shell and effectively be suppressed.The material of shell, the particularly material of casing cover 7 can for example be structural steel or or even stainless steel.
As shown in Figures 9 and 10, here, measuring tube 4,5 is supported in the supporting frame 6 of basic tubulose in the entrance and exit side by this way, make their two strippings and slicings 61,62 by supporting frame 6 extend supporting frame 6, thereby extend into casing cover 7 fixing on the supporting frame 6 to one side.Casing cover 7 is used to surround pipeline section 41, schematically shows as Fig. 7 and 8, and casing cover comprises second cover 72 on groove shape first cover 71 and basic plane and the 3rd cover 73 of basic and its mirror image symmetry.Can find out significantly that from Fig. 3 the shape of cover 71 corresponds essentially to the shape of helically coiled shell.Conform to therewith, cover 71 has a substantial arc preferred semicircularly has the xsect that can be scheduled to first radius r, and the edge 71a of first that at least in fact has the substantial arc of second radius R, second radius R is obviously greater than first radius r, also have shape basically with the identical second portion edge 71b in edge of first.If desired, all to need not be desirable circle for xsect and part edge.So they can be the shapes of slight oval, select the elasticity and/or the ductility of the material of casing cover 7 at least, make casing cover 7 be adapted to the tubular shell of desirable helical and react on the internal pressure of increase with the shape of cover 71.
Fig. 7 and 8 has also shown and utilizes neck shape transition piece 8 to be fixed on electric-device housing 9 on the supporting frame 6.The measurement mechanism electron device of on-line measurement instrument is arranged in shell 9; It produces the pumping signal that is fed to described exciting bank on the one hand, and on the other hand, measurement and function circuit receive the signal of described sensor device and therefrom generate the wanted signal of mass rate, density, viscosity or the temperature of the mobile fluid of representative.These wanted signals can be further processed or show.In Figure 10, omitted transition piece 8 and electric-device housing 9, thereby can see the mounting plane 63 that is used for transition piece 8.Arranging electronic passage 64 on mounting plane 63 utilizes it can be implemented to above-mentioned exciting bank and the sensor device and for example electrical connection of temperature sensor of other electronic component that may exist.
Here in the situation of the measuring transducer of Xian Shiing, utilize vibratory stimulation device 113 excitation measuring tubes 4,5 to carry out the cantilevered vibration, wherein two measuring tubes 4,5 vibrate in two tuning fork prong modes inverting each other substantially and lateral excursion separately.For this reason, exciting bank 113 preferably is fixed to the peak of each measuring tube 4,5.In order to detect the vibration of measuring tube 4,5, two particularly electronic osciducers 114,115 also are provided, utilize them to produce oscillation measurement signal S114, the S115 that represents the particularly entrance and exit side vibration of measuring tube 4,5 suitably in the common mode of this measuring transducer.As schematically showing among Fig. 9, oscillation measurement signal S114, S115 are fed to measurement mechanism electron device 20 suitably, are used for further handling electronically.
As illustrated in Figures 5 and 6, the temperature controlled device that is used for the on-line measurement instrument of the present invention comprises that at least one is fixed on first heat exchanger 30 on the on-line measurement instrument, it is flowed through by the temperature control fluid that is used to transmit heat during operation at least discontinuously, this device also comprises corresponding setting tool 50,60, is used for particularly releasably at least the first heat exchanger 30 externally being fixed on the on-line measurement instrument.Schematically show other embodiment of device of the present invention or heat exchanger of the present invention 30 among Figure 11,12 and 13.
Two heat exchanger plates 31 ', 32 ' are via extending along fringe region and linking together with respect to the edge attachment weld 90 of temperature control fluid sealing and via the inside link position 80 of a plurality of particularly point-like or ring-type, wherein inner link position is provided with in the interior zone that is centered on by edge attachment weld 90 to small part at each interval, and in fact form at least one cavity H between inner and outer wall, it is used to guide temperature control fluid and has a plurality of cavity parts that communicate with each other.The cavity H of Xing Chenging connects the temperature controlling plumbing fixtures system (not shown) that enters the suitable temperature control fluid of guiding via the opening that feeds wherein like this.
Outside second heat exchanger plate 31 ' has a plurality of regional 70, and its number is particularly corresponding to the number of inner attachment weld 80.In these zones 70, the material plastic deformation of second heat exchanger plate makes it outwards encircle lastingly and formation and be positioned at cavity H or described cavity part between two heat exchanger plates 31 ', 32 '.
At least the preferably high-intensity almost incorrosive laser welded seam of inner attachment weld 80.Yet if desired, edge attachment weld 90 also can laser bonding.
For heat exchanger 30 being connected to temperature controlling plumbing fixtures system, two heat exchanger plates one of at least on, install on the special externally plate via the first opening 33A and feed the inlet nozzle 33 of cavity H and feed the outlet nozzle 34 of cavity H via the second opening 34A, heat exchanger 30 can particularly releasably link to each other with the first fluid pipeline (not shown) of guiding temperature control fluid by inlet nozzle, and heat exchanger 30 can particularly releasably link to each other with second fluid line (not showing equally) of carrying-off temperature control fluid by outlet nozzle.
In of the present invention further developing, device also comprises second heat exchanger 40, particularly the structure of itself and first heat exchanger 30 is basic identical, and wherein setting tool 50,60 also is used for particularly releasably 40 external stabilities of second heat exchanger in the on-line measurement instrument; Referring to Fig. 5 and 6.Compare with above-mentioned existing instrument, utilize according to this present invention and further develop the obvious minimizing that measurement that the device of structure carries out has shown thermal inertia; Correspondingly, the mode that compares with the data with Fig. 3 in Figure 18 has provided the measurement data of determining for the experiment of this modification of the present invention.
In the embodiment that this further develops of the present invention with advantage, two heat exchanger 30,40 power are fixed on the on-line measurement instrument ordinatedly, wherein in a preferred embodiment of the invention, setting tool 50,60 to small part constitutes the global facility of first and/or second heat exchanger.Here among the embodiment of Xian Shiing, basically bias voltage is fixed on the on-line measurement instrument two heat exchangers 30,40 on the on-line measurement instrument and by connecting each other by suitable spiral by being placed on relative to one another, thereby they " are tied up " on the on-line measurement instrument in the mode of gripping mechanism; Referring to Fig. 5,6,11,12 or 13.For the situation of only using heat exchanger 30, the spring clamp that suitable spiral connection for example is installed can be used as setting tool 50,60.
In order to make heat exchanger 30, in first plate member 31 that is used for making one of heat exchanger plate " make opening 33A, 34A, they are used for heat exchanger is connected to temperature controlling plumbing fixtures system.Then, first plate member 31 " be placed on second plate member 32 " on, the latter is used for making two heat exchanger plates 31 ', 32 ' another and the particularly thickness of slab and first plate member 32 " different plate member.By suitable welding, two of laser bonding plate member 31 of stack mutually particularly ", 32 " and make edge attachment weld 90 and inner link position 80; About this point, also referring to Figure 14 and 15.Welding can for example utilize the automatic welding machine of suitable programmed or welding manipulator to finish.
Now, for example by crooked or other suitable particularly cold forming method, plate member 31 ", 32 " can mate the outline of on-line measurement instrument; About this point, referring to Figure 16 or Figure 17.So plate member is shaped like this, make plate member 32 as inner first heat exchanger plate 32 ' " have the corresponding spatial form of outer shape with contact area on the on-line measurement instrument at least in part.Then, can be for example by welding, in plate member 31 " or 32 " in inlet nozzle 33 and outlet nozzle 34 are installed among relevant opening 33A, the 34A.
In order to make the intended shape of cavity H, the above-mentioned zone in outer wall 70 particularly, utilization is connected to the pressure line of inlet nozzle 33 and incites somebody to action incompressible fluid to a great extent, particularly water, wet goods directed flow enter two plate member 31 connected to one another through the first opening 33A ", 32 " between Space H '.Simultaneously, via second opening from cavity carrying-off air.In case cavity H ' complete filling incompressible fluid, outlet nozzle 34 by densification close, and the fluid that is arranged in cavity H ' is for example loaded static pressure by further presenting high-pressure fluid, this pressure surpasses the static pressure of ambient atmosphere environment, particularly surpass, thereby begin widening of cavity H ' more than 100bar.Utilize the fluid that has applied pressure on it, cavity H ' is widened, thereby obtains plate member 31 ", 32 " the plastic deformation of material.Static pressure is held, and can further be increased if desired, until the shape that reaches cavity H expectation.
By using method of the present invention,, can also realize that the heat exchanger of making like this 30,40 can satisfy the highest demand of withstand voltage test except simplifying the manufacturing greatly.So, by loading the fluid of introducing cavity H ', with the deformation while of cavity H ', the pressure test of each heat exchanger often takes place, particularly for each edge attachment weld 90 and inner link position 80.The result who---is at least 100bar here---as the high pressure that applies, this test for each heat exchanger can be satisfied quite high demand for security.The relatively demonstration of the measurement data that the heat exchanger experiment for making in the above described manner that the measurement curve of Fig. 4 and Figure 19 show is determined, on the one hand, resistance to pressure obviously increases.On the other hand, available temperature range is significantly expanded as can be seen; For example, for the device of being investigated, in addition in required safety factor is four situation, still can be in the resistance to pressure of 300 ℃ of assurances greater than 4bar, this is corresponding to the rated insulation voltage greater than 16bar.
So device of the present invention is specially adapted to high temperature range, US-A48 76 898 for example above-mentioned, WO-A 02 088 641 or the applicant's oneself undocumented PCT/EP2004/002792.
By the plate member 31 of using thickness of slab to differ from one another ", 32 " be used to make heat exchanger plate 31 ', 32 ', can guarantee in very simple mode, two plate member 31 ", 32 " in a plastic deformation owing to make the fluid of cavity H ' deformation is mainly only arranged, and another almost keeps original shapes.Corresponding therewith, select the thickness of slab of the thickness of slab of inner heat exchanger plate 32 ' greater than external heat exchanger plates 31 '.
Tool is advantageous, and entrance nozzle 33 or outlet nozzle 34 are being fixed to first plate member 31 " before, the curved edge of relevant opening and/or curling, thus obtain on the one hand good contact The surface is used for nozzle is soldered to plate member 31 ", and can stop on the other hand cavity H ' to exist Fluid Sealing in the fringe region; About this point, referring to Figure 16. Except these, crooked The edge can be fixed in pointwise, particularly is spot welded to second plate member 32 " relative part, be used for steady The deckle edge.
Claims (31)
1. temperature controlled device that is used for on-line measurement instrument (1), this on-line measurement instrument has at least one insertion process pipeline and is used to guide the measuring tube (4,5) of process fluid to be measured, and this device comprises:
-at least one is fixed on first heat exchanger (30) on the on-line measurement instrument, and it is flowed through by the temperature control fluid that is used for transfer heat during operation at least discontinuously; With
-setting tool (50,60), be used for at least one first heat exchanger (30) particularly external stability releasably in on-line measurement instrument (1);
-wherein heat exchanger (30) has inwall (32) and outer wall (31) fixed thereon, special geosyncline shape of this inwall or plate-like arch upward, from the outside to small part plane contact on-line measurement instrument (1);
-wherein outer wall (31) links to each other with inwall (32) by the edge attachment weld (90) that is used for seal temperature control fluid that distributes along fringe region and the inside link position (80) by a plurality of particularly point-like or ring-type, these inner link positions are arranged in the interior zone that is centered on by edge attachment weld (90) to small part at each interval, thereby form at least one cavity (H) between inwall (32) and outer wall (31), it is used to guide temperature control fluid and has a plurality of parts that communicate with each other; And
-wherein this cavity (H) (33A 34A) connects the temperature controlling plumbing fixtures system that enters the guiding temperature control fluid by feeding wherein opening.
2. device as claimed in claim 1, wherein first heat exchanger (30) basically power be fixed on ordinatedly on the on-line measurement instrument (1).
3. device as claimed in claim 1 or 2, also comprise basic second heat exchanger (40) identical of structure with first heat exchanger (30), wherein setting tool (50,60) also be used for second heat exchanger (40) particularly external stability releasably in on-line measurement instrument (1).
4. device as claimed in claim 3, wherein setting tool (50, the 60) power that is used for two heat exchangers (30,40) cooperates fixing.
5. as claim 3 or 4 described devices, wherein setting tool at least section construction be the integration component of first and/or second heat exchanger (30,40).
6. as arbitrary described device in the claim 3～5, wherein two heat exchangers (30,40) utilize setting tool (50,60) mechanical connection each other.
7. as claim 3 or 4 described devices, wherein two heat exchangers (30,40) are arranged on the on-line measurement instrument (1) relative to one another.
8. be used to insert the temperature controlled purposes of ducted on-line measurement instrument (1) as arbitrary described device in the claim 1～7, described on-line measurement instrument is used for measuring at least one physical measurement variable, particularly mass rate, density and/or the viscosity of the medium that flows at pipeline.
9. the purposes of device as claimed in claim 8 wherein will be comprised that at least one inserts ducted measuring tube (4,5) by temperature controlled on-line measurement instrument (1).
10. the purposes of device as claimed in claim 9, wherein at least the first heat exchanger to small part plane earth contacts at least one measuring tube (1).
11. the purposes of device as claimed in claim 9,
-wherein to also be comprised the shell that centers at least one measuring tube by temperature controlled on-line measurement instrument, and
-wherein at least the first heat exchanger to small part plane earth contacts shell.
12. the purposes of device as claimed in claim 11 wherein makes at least one measuring tube that is used at least one physical descriptor of the mobile medium of measuring channel vibrate.
13. be used for the heat exchanger (30 of on-line measurement instrument (1), 40), this on-line measurement instrument has at least one and can insert the ducted measuring tube of process (4,5) that is used to guide process fluid to be measured, this heat exchanger (30) comprises at least two heat exchanger plates (31 ', 32 ');
-wherein particularly inside first heat exchanger plate (32 ') that arches upward of groove shape or plate-like is suitable for during operation from the outside at the contact area that can be scheduled to small part plane contact on-line measurement instrument (1), and thereby form the inwall (32 ") of heat exchanger (30), and
-wherein be fixed on the outer wall (31) that outside second heat exchanger plate (31 ') on first heat exchanger plate (32 ') forms heat exchanger (30),
-wherein, two heat exchanger plates (31 ', 32 ') be connected together by the edge attachment weld (90) that distributes along fringe region and the inside link position (80) by a plurality of particularly point-like or ring-type, these inner link positions are arranged in the interior zone that is centered on by edge attachment weld (90) to small part at each interval, thereby form at least one was surrounded and had the part that communicates with each other by two heat exchanger plates (31 ', 32 ') cavity (H); And
-its cavity (H) can (33A 34A) connects the temperature controlling plumbing fixtures system that enters, and this piping system guiding is used to transmit the temperature control fluid of heat by the feeding opening that is provided with at least one heat exchanger plate (31 ', 32 ') wherein.
14. heat exchanger as claimed in claim 13, wherein edge attachment weld (90) is self-enclosed.
15. as claim 13 or 14 described heat exchangers, wherein outside second heat exchanger plate (31 ', 32 ') have the particularly corresponding a plurality of zones of number (70) of number and inner attachment weld (80), there, the material of second heat exchanger plate (31 ') is by plastic deformation, make it outwardly-bently enduringly be positioned at cavity (H) between two heat exchanger plates (31 ', 32 ') with formation.
16. as arbitrary described heat exchanger among the claim 13-15, wherein at least one is fixed on two heat exchanger plates (31 ' by the inlet nozzle (33) that first opening (33A) feeds cavity (H), 32 ') at least one, heat exchanger (30) can particularly releasably link to each other with the first fluid pipeline of guiding temperature control fluid by this inlet nozzle.
17. heat exchanger as claimed in claim 16, wherein inlet nozzle (33) is fixed on outside second heat exchanger plate (31 ').
18. as claim 16 or 17 described heat exchangers, wherein at least one is fixed on two heat exchanger plates (31 ' by the outlet nozzle (34) that second opening (34A) feeds cavity (H), 32 ') at least one, heat exchanger can particularly releasably link to each other with second fluid line of exhaust temperature control fluid by this outlet nozzle.
19. heat exchanger as claimed in claim 18, wherein outlet nozzle (34) is fixed on outside second heat exchanger plate (31 ').
20. as arbitrary described heat exchanger among the claim 13-19, wherein inner at least attachment weld (80), particularly also having edge attachment weld (90) is laser welded seam.
21. as arbitrary described heat exchanger among the claim 13-20, wherein in two heat exchanger plates (31 ', 32 ') one of at least by stainless steel, particularly the high-quality steel is made.
22. as arbitrary described heat exchanger among the claim 13-21, the thickness of slab of wherein inner first heat exchanger plate (32 ') is different with the thickness of slab of outside second heat exchanger plate (31 ').
23. heat exchanger as claimed in claim 22, wherein the thickness of slab of first heat exchanger plate (32 ') is greater than the thickness of slab of second heat exchanger plate (31 ').
24. as the use in arbitrary described device in of arbitrary described heat exchanger among the claim 13-23 as claim 1-7.
25. be used for making the method as arbitrary described heat exchanger of claim 13-23, this method may further comprise the steps:
-(33A 34A), is used for heat exchanger is connected to temperature controlling plumbing fixtures system to produce at least one first opening in first plate member that is used to make one of heat exchanger plate (31 ', 32 ') (31 ");
-first plate member (31 ") is placed on second plate member that is used to make one of heat exchanger (31 ', 32 ') plate equally (32 "), the thickness of slab of the thickness of slab of second plate member and first plate member (31 ") is different especially;
-plate member (31 ", 32 ") by welding particularly two stacks of laser bonding produces edge attachment weld (90) and inner link position (80);
-by first opening (33A), will particularly basic incompressible fluid, particularly water, wet goods is introduced in remaining cavity between two plate member connected to one another (H ');
-the fluid of filling in cavity (H ') applies static pressure, and this pressure surpasses the static pressure of surrounding environment, particularly surpasses 100bar, makes the expansion that starts cavity (H '); And
-applied the fluid expansion cavity (H ') of pressure by utilization, and the main material of one of two plate member of plastic deformation (31 ", 32 ").
26. method as claimed in claim 25, also comprise step: deformation by this way, particularly the twisted plate parts (31 "; 32 "), make plate member to small part as inner first heat exchanger plate (32 ') have with on-line measurement instrument (1) on the corresponding spatial form of outer shape of contact area.
27., also comprise step as claim 25 or 26 described methods:
-inlet nozzle (33) or outlet nozzle (34) are fixed on first plate member (31 "), make it feed first opening (33A, 34A); And
-pressure line of fluid is connected to plate member (32 ") go up on the fixing inlet or outlet nozzle (33,34).
28., also comprise step as claim 25 or 26 described methods:
-(33A 34A), is used for heat exchanger (30) is connected to temperature controlling plumbing fixtures system to make at least one second opening in one of two plate member (31 ", 32 "); And
One of-after the step of fluid being introduced cavity (H '), two openings of densification ground sealing (33A, 34A).
29. method as claimed in claim 28 also comprises step:
-inlet nozzle or outlet nozzle are fixed on first plate member, make it pass through first opening and cavity (H ') and communicate; With
Be sealed in to-densification inlet nozzle or outlet nozzle fixing on the plate member.
30. as arbitrary described method among the claim 27-29, wherein on first plate member fixedly the step of inlet nozzle or outlet nozzle comprise bending and/or the step at the edge of first opening that curls.
31. method as claimed in claim 30, wherein on first plate member fixedly the step of inlet nozzle or outlet nozzle comprise with the edge of first opening at least pointwise be fixed on second plate member step on the part relatively.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004019255.3 | 2004-04-16 | ||
| DE102004019255 | 2004-04-16 | ||
| DE102004019390.8 | 2004-04-19 |
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| Publication Number | Publication Date |
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| CN1942743A true CN1942743A (en) | 2007-04-04 |
| CN100432633C CN100432633C (en) | 2008-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800113738A Active CN100432633C (en) | 2004-04-16 | 2005-04-14 | Apparatus for controlling temperature of an inline measuring device |
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| Country | Link |
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| CN (1) | CN100432633C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444282A (en) * | 2019-08-29 | 2021-03-05 | 浙江三花智能控制股份有限公司 | Sensor, heat exchanger and heat exchange system |
| CN113776606A (en) * | 2021-08-18 | 2021-12-10 | 夏罗登工业科技(上海)股份有限公司 | High-bearing type cold-resistant heat-resistant electromagnetic flowmeter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2313650A1 (en) * | 1975-06-05 | 1976-12-31 | Bertin & Cie | COMPACT HEAT EXCHANGER FOR FLUIDS |
| US4584868A (en) * | 1985-05-16 | 1986-04-29 | American Meter Company | Apparatus for determining the supercompressibility factor of a flowing gas |
| CN2126405U (en) * | 1992-05-28 | 1992-12-30 | 聂春分 | External heating inversely flow-collecting radiation heat exchanger |
| US6749014B2 (en) * | 1999-09-23 | 2004-06-15 | Joseph C. Ferraro | External flue heat exchangers |
| US20030056944A1 (en) * | 1999-09-23 | 2003-03-27 | Joseph C. Ferraro | External flue heat exchangers |
-
2005
- 2005-04-14 CN CNB2005800113738A patent/CN100432633C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444282A (en) * | 2019-08-29 | 2021-03-05 | 浙江三花智能控制股份有限公司 | Sensor, heat exchanger and heat exchange system |
| CN113776606A (en) * | 2021-08-18 | 2021-12-10 | 夏罗登工业科技(上海)股份有限公司 | High-bearing type cold-resistant heat-resistant electromagnetic flowmeter |
| CN113776606B (en) * | 2021-08-18 | 2024-02-09 | 夏罗登工业科技(上海)股份有限公司 | High-bearing type cold-resistant and heat-resistant electromagnetic flowmeter |
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| CN100432633C (en) | 2008-11-12 |
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