CN104535130B - HTHP ripple self-balancing flowmeter - Google Patents
HTHP ripple self-balancing flowmeter Download PDFInfo
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- CN104535130B CN104535130B CN201410580549.2A CN201410580549A CN104535130B CN 104535130 B CN104535130 B CN 104535130B CN 201410580549 A CN201410580549 A CN 201410580549A CN 104535130 B CN104535130 B CN 104535130B
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- measurement pipe
- measurement
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Abstract
The invention discloses a kind of HTHP ripple self-balancing flowmeter,Including the first measurement pipe,Second measurement pipe,Throttling element,First measurement pipe,Second measurement pipe is welded and fixed with throttling element,First measurement pipe and the second measurement pipe are made up of heat-resisting alloy steel or carbon steel,Throttling element is made of stainless steel,The first pressure guiding pipe is provided with first measurement pipe,The second pressure guiding pipe is provided with second measurement pipe,First measurement pipe offers annular pressure area with the second measurement pipe both of which,Throttling element includes circular throttling element body,Annular rim portion,The connection end of first measurement pipe and the second measurement pipe offers locating slot,Annular rim portion is arranged in locating slot,The both ends of the surface of annular rim portion offer annular groove,The bottom surface of groove has corrugated part,Deflection caused by throttling element when reducing welding different from throttling element material due to measurement pipe,So as to improve flow measurement precision.
Description
Technical field
The present invention relates to flow measurement device, more particularly to a kind of HTHP ripple self-balancing flowmeter.
Background technology
At present in the industry HTHP flow measurement occasion such as power plant, oil, chemical industry, generally using flow-through orifice or stream
Flow nozzle measures to flow, due to consideration that measurement medium is typically high temperature and high pressure steam or some other high-risk Jie
Matter, on the one hand must strictly prevent leakage generation, on the other hand due to all refer to equipment efficiency settle accounts and processing compound,
So the requirement to measurement accuracy is also very high, this requires flow-through orifice or flow nozzle to realize function above.
Traditional design structure is as shown in figure 1, the flow-through orifice or flow nozzle of this form weld shape due to using
Formula, so prevented leakage point, but because the ectosome material of flowmeter is generally heat-resisting alloy steel or carbon steel, internal metering orifice
Plate or flow nozzle are stainless steel, so on the one hand in welding process, due to orifice plate or nozzle it is heated after can expand, and
The limitation of ectosome structure can not outwards expand and can only inwardly expand, so as to cause orifice plate or nozzle just directly to become in welding process
Shape, bore size is caused to change and cause measurement error to increase；On the other hand in actual moving process, temperature in use is typically up to
To more than 450 DEG C, because flowmeter ectosome is different with restricting element material, the throttling element thermal expansion amount of stainless steel is much larger than
The thermal expansion amount of ectosome, can only expand because the limitation of ectosome structure can not outwards expand and inwardly, so causing 2 deformations, cause
Measurement error is set further to increase, so the flow-through orifice or flow nozzle for this structure can be used only in measurement accuracy requirement
Not high occasion.
The content of the invention
It is an object of the invention to overcome defect present in prior art, there is provided a kind of HTHP ripple self-balancing stream
Gauge, deflection caused by throttling element when reducing welding different from throttling element material due to measurement pipe, so as to improve flow measurement
Precision.
To achieve the above object, the technical scheme is that providing a kind of HTHP ripple self-balancing flowmeter,
Including the first measurement pipe, the second measurement pipe and the throttling element between first measurement pipe and second measurement pipe,
First measurement pipe, second measurement pipe and the throttling element three are welded and fixed, first measurement pipe and described
Second measurement pipe is made up of heat-resisting alloy steel or carbon steel, and the throttling element is made of stainless steel, vertical in first measurement pipe
The first pressure guiding pipe is provided with, is vertically installed with the second pressure guiding pipe in second measurement pipe, first measurement pipe and described the
Both two measurement pipes connection end offers annular pressure area, first pressure guiding pipe and second pressure guiding pipe respectively with phase
The pressure area answered is connected, and the throttling element includes circular throttling element body, is arranged at the external annular edge of the throttling element sheet
Edge, the thickness of the annular rim portion are more than the thickness of the circular throttling element body, the diameter of the throttling element body with
The race diameter in the annular pressure area is identical, and the connection end of first measurement pipe and second measurement pipe offers
Locating slot, the annular rim portion are arranged in the locating slot, and it is recessed that the both ends of the surface of the annular rim portion offer annular
Groove, the bottom surface of the groove have corrugated part, and the thickness of the annular rim portion is 12-20mm, and the depth of groove is 3mm,
The thickness of the corrugated part is 2mm.
Preferably, first measurement pipe includes measurement tube body and adapter portion with second measurement pipe,
The thickness in the adapter portion is more than the thickness of the measurement tube body, using cone between the adapter portion and the measurement tube body
Shape transition, first pressure guiding pipe and second pressure guiding pipe are connected with the adapter portion.
Preferably, the end of the measurement tube body has intermediate incline.
Preferably, flow nozzle is offered on the throttling element body.
Preferably, the bottom surface of the groove is in sawtooth waveform.
The advantages of the present invention are：When integral solder, expanded after throttling element is heated, swell increment is by ripple
Body is absorbed, so that throttling element bore size will not cause any change；In actual moving process, temperature in use rise, no
The throttling element thermal expansion amount of rust steel material is also absorbed by corrugated body, so that throttling element bore size will not cause any change
And measurement accuracy is guaranteed, the change of this structure does not influence the intensity of equipment not only, while substantially increases measurement
Precision, welded type flowmeter is set to have obtained further raising in the popularization of HTHP occasion.
Brief description of the drawings
Fig. 1 is prior-art illustration；
Fig. 2 is the schematic diagram of the present invention.
Wherein：1st, the first measurement pipe；2nd, the second measurement pipe；3rd, throttling element；4th, the first pressure guiding pipe；5th, the second pressure guiding pipe；6、
Groove；7th, pressure area.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is further described.Following examples are only
For clearly illustrating technical scheme, and can not be limited the scope of the invention with this.
As shown in Fig. 2 a kind of HTHP ripple self-balancing flowmeter, including the first measurement pipe 1, the second measurement pipe 2 with
And the throttling element 3 between first measurement pipe 1 and second measurement pipe 2, first measurement pipe 1, described second
Measurement pipe 2 is welded and fixed with the three of throttling element 3, and first measurement pipe 1 and second measurement pipe 2 are by heat-resisting alloy
Steel or carbon steel are made, and the throttling element 3 is made of stainless steel, and the first pressure guiding pipe 4 is vertically installed with first measurement pipe 1,
The second pressure guiding pipe 5 is vertically installed with second measurement pipe 2, both first measurement pipe 1 and second measurement pipe 2 are even
Connect end and offer annular pressure area 7, first pressure guiding pipe 4 and second pressure guiding pipe 5 respectively with corresponding pressure area 7
It is connected, the throttling element 3 includes circular throttling element body, is arranged at the external annular rim portion of the throttling element sheet, described
The thickness of annular rim portion is more than the thickness of the circular throttling element body, and diameter and the annular of the throttling element body take
The race diameter of nip 7 is identical, and the connection end of first measurement pipe 1 and second measurement pipe 2 offers locating slot,
The annular rim portion is arranged in the locating slot, and the both ends of the surface of the annular rim portion offer annular groove 6, described
The bottom surface of groove 6 has corrugated part, and the thickness of the annular rim portion is 12-20mm, and the depth of groove 6 is 3mm, the ripple
The thickness in shape portion is 2mm.
As shown in figure 1, first measurement pipe 1 includes measurement tube body and adapter portion with second measurement pipe 2,
The thickness in the adapter portion is more than the thickness of the measurement tube body, using cone between the adapter portion and the measurement tube body
Shape transition, first pressure guiding pipe 4 and second pressure guiding pipe 5 are connected with the adapter portion, the measurement tube body
End there is intermediate incline, so as to ensure that connection size is completely the same, while improve the intensity at flowmeter adapter, so as to
The anti-seismic performance and security intensity for making flowmeter bodies greatly improve.
As shown in Figure 1 and Figure 2, flow nozzle is offered on the throttling element body, throttling element body can be in addition
The form of flow-through orifice.
As shown in Figure 1 and Figure 2, the bottom surface of the groove 6 is in sawtooth waveform, can also be arc waveform in addition
Deng.
In throttling element body both ends of the surface, respectively 1 groove of processing, bottom portion of groove are processed into corrugated, and ripple body thickness is 2mm
Left and right, when integral solder, expanded after orifice plate or nozzle are heated, swell increment is absorbed by corrugated body, so that orifice plate or nozzle
Bore size will not cause any change；In actual moving process, temperature in use rise, the throttling element thermal expansion of stainless steel
Amount is also absorbed by corrugated body, so that orifice plate or nozzle bore size will not cause any change and obtain measurement accuracy
Ensure, the change of this structure does not influence the intensity of equipment not only, while substantially increases measurement accuracy, makes welded type flowmeter
Further raising has been obtained in the popularization of HTHP occasion.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (3)
- A kind of 1. HTHP ripple self-balancing flowmeter, it is characterised in that：Including the first measurement pipe, the second measurement pipe and position Throttling element between first measurement pipe and second measurement pipe, first measurement pipe, second measurement pipe with The throttling element three is welded and fixed, and first measurement pipe and second measurement pipe are by heat-resisting alloy steel or carbon steel system Into the throttling element is made of stainless steel, and the first pressure guiding pipe, second measurement pipe are vertically installed with first measurement pipe On be vertically installed with the second pressure guiding pipe, both first measurement pipe and described second measurement pipe are connected end and offer annular Pressure area, first pressure guiding pipe are connected with corresponding pressure area respectively with second pressure guiding pipe, and the throttling element includes Circular throttling element body, the external annular rim portion of the throttling element sheet is arranged at, flow is offered on the throttling element body Nozzle, the thickness of the annular rim portion are more than the thickness of the circular throttling element body, the diameter of the throttling element body with The race diameter in the annular pressure area is identical, and the connection end of first measurement pipe and second measurement pipe offers Locating slot, the annular rim portion are arranged in the locating slot, and it is recessed that the both ends of the surface of the annular rim portion offer annular Groove, the bottom surface of the groove have corrugated part, and the thickness of the annular rim portion is 12-20mm, and the depth of groove is 3mm, The thickness of the corrugated part is 2mm, and the bottom surface of the groove is in sawtooth waveform.
- 2. HTHP ripple self-balancing flowmeter as claimed in claim 1, it is characterised in that：First measurement pipe and institute Stating the second measurement pipe includes measurement tube body and adapter portion, and the thickness in the adapter portion is more than the thickness of the measurement tube body Degree, tapering transition, first pressure guiding pipe and second impulse are used between the adapter portion and the measurement tube body Adapter portion is connected described in Guan Junyu.
- 3. HTHP ripple self-balancing flowmeter as claimed in claim 2, it is characterised in that：The end of the measurement tube body Portion has intermediate incline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580549.2A CN104535130B (en) | 2014-10-27 | 2014-10-27 | HTHP ripple self-balancing flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580549.2A CN104535130B (en) | 2014-10-27 | 2014-10-27 | HTHP ripple self-balancing flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104535130A CN104535130A (en) | 2015-04-22 |
| CN104535130B true CN104535130B (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410580549.2A Active CN104535130B (en) | 2014-10-27 | 2014-10-27 | HTHP ripple self-balancing flowmeter |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2186342C2 (en) * | 1999-11-17 | 2002-07-27 | Потехин Борис Николаевич | Constricting device to measure gas flow rate |
| CN201293469Y (en) * | 2008-11-10 | 2009-08-19 | 唐其敏 | Solar thermal-collecting tube with double self-compensating structure |
| CN201935708U (en) * | 2011-01-18 | 2011-08-17 | 河北宏业永泰流体机械股份有限公司 | Integrative orifice meter |
| CN202631015U (en) * | 2012-06-11 | 2012-12-26 | 江阴市节流装置厂有限公司 | Nuclear power flow measurement device for |
| CN102937377A (en) * | 2012-09-03 | 2013-02-20 | 杭州金马能源科技有限公司 | High temperature resistant borosilicate hard glass and metal material encapsulated joint and manufacturing method thereof |
| CN203203648U (en) * | 2013-04-16 | 2013-09-18 | 温州市捷达石化仪表有限公司 | Welding type nozzle installation structure |
| CN204330066U (en) * | 2014-10-27 | 2015-05-13 | 江阴市节流装置厂有限公司 | High Temperature High Pressure ripple self-equilibrating flowmeter |
-
2014
- 2014-10-27 CN CN201410580549.2A patent/CN104535130B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2186342C2 (en) * | 1999-11-17 | 2002-07-27 | Потехин Борис Николаевич | Constricting device to measure gas flow rate |
| CN201293469Y (en) * | 2008-11-10 | 2009-08-19 | 唐其敏 | Solar thermal-collecting tube with double self-compensating structure |
| CN201935708U (en) * | 2011-01-18 | 2011-08-17 | 河北宏业永泰流体机械股份有限公司 | Integrative orifice meter |
| CN202631015U (en) * | 2012-06-11 | 2012-12-26 | 江阴市节流装置厂有限公司 | Nuclear power flow measurement device for |
| CN102937377A (en) * | 2012-09-03 | 2013-02-20 | 杭州金马能源科技有限公司 | High temperature resistant borosilicate hard glass and metal material encapsulated joint and manufacturing method thereof |
| CN203203648U (en) * | 2013-04-16 | 2013-09-18 | 温州市捷达石化仪表有限公司 | Welding type nozzle installation structure |
| CN204330066U (en) * | 2014-10-27 | 2015-05-13 | 江阴市节流装置厂有限公司 | High Temperature High Pressure ripple self-equilibrating flowmeter |
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| Publication number | Publication date |
|---|---|
| CN104535130A (en) | 2015-04-22 |
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