CN207832253U - Rotate orifice plate metered flow device - Google Patents
Rotate orifice plate metered flow device Download PDFInfo
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- CN207832253U CN207832253U CN201820219621.2U CN201820219621U CN207832253U CN 207832253 U CN207832253 U CN 207832253U CN 201820219621 U CN201820219621 U CN 201820219621U CN 207832253 U CN207832253 U CN 207832253U
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- orifice plate
- grip block
- orifice
- plate body
- rotation
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Abstract
The utility model provides a kind of rotation orifice plate metered flow device, the edge of left grip block and right grip block is linked into an integrated entity by studs, two connecting tubes are installed on blocking for straight pipe and are welded at position and respectively with straight pipe, the docking site setting of two connecting tubes has the gap, circular orifice plate plate body is set in the gap between two connecting tubes, the center of orifice plate plate body is overlapped with the center of rotary shaft, orifice plate plate body is socketed in rotary shaft and is driven by rotary shaft and rotated, along the circumferential direction uniform intervals are further opened with the throttle orifice of multiple and different bores on orifice plate plate body, in rotation process, the axis of throttle orifice is overlapped with the axis of connecting tube successively.It measures medium and forms pressure difference in orifice plate plate body throttle orifice both sides, driver drives the rotation of orifice plate plate body by gear-box and rotary shaft, the throttle orifice of different bores, which is sequentially located at, on switching orifice plate plate body measures in pipeline, the measuring device is set to have the throttle orifice of different β value so that the device has broader range ratio.
Description
Technical field
The utility model is related to a kind of full packages fluid flow, tool are measured with the differential pressure device being mounted in circular cross-section pipeline
For body, it is related to a kind of rotation orifice plate measurement fluid flow device.
Background technology
Orifice flowmeter be natural gas measure use in most commonly used equipment, it by generation differential pressure primary device ---
Standard orifice plate throttling set, the compositions such as secondary detection instrument --- difference gauge, pressure gauge, thermometer and Flow Measurement Display Meter.
The variation of metering pipeline flow range is the case where being frequently encountered in actual use, and especially flow increases above flow
The range upper limit of meter, causes differential pressure transmitter to outrange operation, and metering device cannot accurate metered flow.Above-mentioned ask is solved at present
There are many method of topic, such as by big flow segmentation multi-channel parallel combination, replace hole plate change β value and measure, with an orifice plate
Flowmeter different range difference gauges in parallel measure, but each technology has the limitation and deficiency of oneself, and big flow is segmented
Multi-channel parallel, which is combined and measured with an orifice flowmeter different range difference gauges in parallel, needs to configure a large amount of primary dress
It sets or secondary detection instrument, technical fee height, replacement hole plate changes β value and measure the seasonality for being only applicable to the long period
The case where flow changes by a relatively large margin or difference gauge is caused to exceed regulation use scope for the suddenly change of flow, and certain operating modes
Do not have the condition for replacing orifice plate.
Invention content
The main purpose of the utility model is to provide a kind of rotation orifice plates simple in structure to measure fluid flow device, leads to
The throttle orifice for circumferentially uniformly opening different β value in one piece of orifice plate is crossed, is rotated by driver drives orifice plate, according to operating mode flow model
It encloses, the throttle orifice for switching different β value is located in measurement pipeline, and a throttling set front and back end differential pressure is made to remain at differential pressure change
It send in the range ability of device, greatly extends the range ratio of flowmeter.
To achieve the goals above, the utility model provides a kind of rotation orifice plate metered flow device, including straight pipe,
Connecting tube, left grip block, right grip block, left sealing ring, right sealing ring, waveform spring, orifice plate plate body, pressure pipe, rotary shaft, tooth
The edge of roller box, driver, left grip block and right grip block is linked into an integrated entity by studs, and straight pipe is measuring position
It is truncated, two connecting tubes are installed on blocking for straight pipe and are welded at position and respectively with straight pipe, the docking of two connecting tubes
Position setting has the gap, the outer wall of opposite one end of two connecting tubes respectively with the eccentric through-hole of corresponding left grip block and the right side
The eccentric through-hole of grip block welds, and left stepped hole, waveform spring and left sealing ring peace are provided at the eccentric through-hole of left grip block
Loaded on right stepped hole in left stepped hole, is provided at the eccentric through-hole of right grip block, right sealing ring is installed in right stepped hole, circle
The orifice plate plate body of shape is set in the gap between left sealing ring and right sealing ring and between two connecting tubes, left grip block
Offer the through-hole parallel with connecting tube with the center of right grip block, rotary shaft is installed in through-hole, the center of orifice plate plate body with
The center of rotary shaft overlaps, and orifice plate plate body is socketed in rotary shaft and is driven by rotary shaft and rotated, on orifice plate plate body circumferentially
Direction uniform intervals are further opened with the throttle orifice of multiple and different bores, in rotation process, the axis of throttle orifice successively with connecting tube
Axis overlap, rotary shaft is stretched out right grip block right end and connect with gear-box, and gear-box left end passes through screw and the right grip block right side
End connection, gear-box right end are connect with driver, and the pressure channel in left grip block and right grip block is connect with pressure pipe, pressure
Channel is connected to by ring casing, annular space with pipeline is measured.
Further, rotary shaft corresponds to the position of orifice plate plate body and is provided with step outer circle outstanding, and through-hole corresponds to outside step
Round position is provided with stepped hole, and the step outer circle of stepped hole and rotary shaft coordinates, and spline, orifice plate plate body are provided in step outer circle
Centre bore on be provided with and the matched spline of spline.
Further, the throttling that the straight pipe centre bore of the connecting tube centre bore and straight pipe of connecting tube passes through orifice plate plate body
Hole is connected to.
Further, the one end of two connecting tubes being connected to each other is provided with step outer circle, the platform of eccentric through-hole and connecting tube
Rank outer circle position forms ring casing.
Further, the annular space of the end face of two connecting tubes being connected to each other and orifice plate plate body end face formation width 2mm.
Further, driver is handwheel or Electric Motor Wheel, and user is by rotating handwheel or In-wheel-motor driving orifice plate plate body
Rotation.
Further, pressure channel is set in left grip block and right grip block, and pressure channel passes through ring casing, annular space and survey
Buret road is connected.
Using the technical solution of the utility model, medium is measured from rotation orifice plate metered flow device right end into from left end
Go out, pressure difference is formed in the throttle orifice both sides of orifice plate plate body.In use, rotation orifice plate metered flow device is accessed the measurement pipe
In road, rotation orifice plate metered flow device front and back end is respectively connected to gate valve and is shown in a fully open operation, the rotation orifice plate metered flow
Device measures pipeline and is connected to by-pass line, and gate valve is housed on by-pass line and is closed, when medium flow field in measurement pipeline
Amount changes, and when throttle orifice front and back end pressure difference exceeds differential pressure transmitter range ability, by-pass line gate valve is opened, will be rotated
Orifice-plate flow meter flow apparatus front and back end gate valve is closed, and medium is made to be passed through by by-pass line, function driver rotation, by gear-box,
Rotary shaft drives the rotation of orifice plate plate body, and according to the range of flow, the throttle orifice for switching suitable β value is located in measurement pipeline, then
Rotation orifice plate metered flow device front and back end gate valve is opened, and by-pass line gate valve is closed, makes measurement medium from new section
Discharge orifice passes through, and ensures that throttle orifice front and back end pressure difference is always positioned in differential pressure transmitter range ability, to greatly extend stream
The range ratio of gauge compares the mode of other expanded flowmeter range ratios, and the installation cost is low, convenient operating maintenance.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality
Novel illustrative embodiments and their description are not constituted improper limits to the present invention for explaining the utility model.
In the accompanying drawings：
Fig. 1 shows the overall structure diagram of the rotation orifice plate metered flow device of the utility model；
Fig. 2 shows the enlarged structure schematic diagrams of the portion P in Fig. 1；
Fig. 3 shows the structural schematic diagram of the orifice plate plate body in Fig. 1；
Fig. 4 shows the structural schematic diagram of the rotary shaft in Fig. 1；
Fig. 5 shows the left view of the step outer circle of the rotary shaft in Fig. 1；
Fig. 6 shows that the rotation orifice plate metered flow device of the utility model is installed on the structural representation measured on pipeline
Figure.
Fig. 7 shows structural schematic diagram when driver is handwheel.
Wherein, above-mentioned attached drawing includes the following drawings label：
1, straight pipe；2, connecting tube；3, left grip block；4, right grip block；5, pressure pipe；6, waveform spring；7, left sealing
Ring；8, right sealing ring；9, orifice plate plate body；10, rotary shaft；11, gear-box；12, driver；13, studs；14, left step
Hole；15, right stepped hole；16, throttle orifice；17, through-hole；18, screw；19, pressure channel；20, gate valve；21, orifice-plate flow meter is rotated
Flow apparatus；22, pipeline is measured；23, by-pass line；24, gate valve；25, step outer circle；26, spline；27, stepped hole；28, flower
Keyway；29, connecting tube centre bore；30, straight pipe centre bore；31, step outer circle；32, eccentric through-hole；33, ring casing；34, annular space；
35, handwheel.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually
It is for direction shown in the drawings, or for component itself is on vertical, vertical or gravity direction；Together
Sample, it for ease of understanding and describes, " inside and outside " refers to the inside and outside of the profile relative to each component itself, but the above-mentioned noun of locality is simultaneously
It is not used in limitation the utility model.
As shown in Figures 1 to 6, rotation orifice plate metered flow device includes straight pipe 1, connecting tube 2, left grip block 3, right folder
Hold plate 4, left sealing ring 7, right sealing ring 8, waveform spring 6, orifice plate plate body 9, pressure pipe 5, rotary shaft 10, gear-box 11, driving
The edge of device 12, left grip block 3 and right grip block 4 is linked into an integrated entity by studs 13, and straight pipe 1 is measuring position quilt
It blocks, two connecting tubes 2 are installed on blocking for straight pipe 1 and are welded at position and respectively with straight pipe 1, pair of two connecting tubes 2
The setting of socket part position has the gap, the outer wall of opposite one end of two connecting tubes 2 respectively with the eccentric through-hole of corresponding left grip block 3
32 and the eccentric through-hole 32 of right grip block 4 weld, be provided with left stepped hole 14, waveform bullet at the eccentric through-hole 32 of left grip block 3
Spring 6 and left sealing ring 7 are installed in left stepped hole 14, and right stepped hole 15 is provided at the eccentric through-hole 32 of right grip block 4, right close
Seal ring 8 is installed in right stepped hole 15, and circular orifice plate plate body 9 is set between left sealing ring 7 and right sealing ring 8 and is located at two
In gap between a connecting tube 2, the center of left grip block 3 and right grip block 4 offers the through-hole 17 parallel with connecting tube 2,
Rotary shaft 10 is installed in through-hole 17, and the center of orifice plate plate body 9 is overlapped with the center of rotary shaft 10, and orifice plate plate body 9 is socketed on rotation
Driven in shaft 10 and by rotary shaft 10 and rotated, on orifice plate plate body 9 along the circumferential direction uniform intervals be further opened with it is multiple and different
The throttle orifice 16 of bore, in rotation process, the axis of throttle orifice 16 is overlapped with the axis of connecting tube 2 successively, and rotary shaft 10 is stretched out
4 right end of right grip block is connect with gear-box 11, and 11 left end of gear-box is connect by screw 18 with 4 right end of right grip block, gear-box
11 right ends are connect with driver 12, and the pressure channel 19 in left grip block 3 and right grip block 4 is connect with pressure pipe 5, pressure channel
19 are connected to by ring casing 33, annular space 34 with pipeline 22 is measured.
As shown in Figures 1 to 5, the position of the correspondence orifice plate of rotary shaft 10 plate body 9 is provided with step outer circle 25 outstanding, through-hole
The position of 17 correspondence step outer circles 25 is provided with stepped hole 27, and stepped hole 27 and the step outer circle 25 of rotary shaft 10 coordinate, step
It is provided with spline 26 in outer circle 25, is provided on the centre bore of orifice plate plate body 9 and 26 matched spline 28 of spline.
As depicted in figs. 1 and 2,2 centre bore of connecting tube of connecting tube 2 passes through orifice plate with 1 centre bore of straight pipe of straight pipe 1
The throttle orifice 16 of plate body 9 is connected to.
As depicted in figs. 1 and 2, the one end of two connecting tubes 2 being connected to each other is provided with step outer circle 25, eccentric through-hole 32 with
25 position of step outer circle of connecting tube 2 forms ring casing 33.
As shown in Figure 1 and Figure 7, driver 12 is handwheel 35 or Electric Motor Wheel, wherein Fig. 1 show Electric Motor Wheel, shown in Fig. 7
For manual pulley, user is rotated by rotating handwheel 35 or In-wheel-motor driving orifice plate plate body 9.
As depicted in figs. 1 and 2, the end face of two connecting tubes 2 being connected to each other is with 9 end face formation width 2mm's of orifice plate plate body
Annular space 34, pressure channel 19 are set in left grip block 3 and right grip block 4, and pressure channel 19 is by ring casing 33, annular space 34 and surveys
Buret road 22 is connected, to realize pressure and pressure measurement.
Medium is measured from rotation 21 right end of orifice plate metered flow device into going out from left end, in 16 liang of orifice plate plate body throttle orifice
Side forms pressure difference, is measured in pipeline 22 in use, rotation orifice plate metered flow device 21 is accessed, rotation orifice plate metered flow dress
It sets 21 front and back ends to be respectively connected to gate valve 20 and be shown in a fully open operation, rotation orifice plate metered flow device measures pipeline 22 and is connected to bypass pipe
Road 23 equipped with gate valve 24 and is closed on by-pass line 23, changes when measuring rate-of flow in pipeline 22, orifice plate
When 16 front and back end pressure difference of throttle orifice exceeds differential pressure transmitter range ability, by-pass line gate valve 24 is opened, orifice plate meter will be rotated
It measures 21 front and back end gate valve 20 of flow apparatus to close, medium is made to be passed through by by-pass line 23, function driver 12 rotates, by gear-box
11, rotary shaft 10 drives orifice plate plate body 9 to rotate, and according to the range of flow, the throttle orifice 16 for switching suitable β value is located at measurement pipeline
In 22, then rotation 21 front and back end gate valve 20 of orifice plate metered flow device is opened, and by-pass line gate valve 24 is closed, make survey
Amount medium passes through from new throttle orifice 16, ensures that 16 front and back end pressure difference of throttle orifice is always positioned in differential pressure transmitter range ability,
To greatly extend the range ratio of flowmeter, the mode of other expanded flowmeter range ratios is compared, the installation cost is low, behaviour
Make easy to maintain.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or combination thereof.
It should be noted that the term " comprising " in the description and claims of this application and above-mentioned attached drawing and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps or unit
Process, method, system, product or equipment those of are not necessarily limited to clearly to list step or unit, but may include without clear
It is listing to Chu or for these processes, method, product or equipment intrinsic other steps or unit.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of rotation orifice plate metered flow device, which is characterized in that including straight pipe（1）, connecting tube（2）, left grip block
（3）, right grip block（4）, left sealing ring（7）, right sealing ring（8）, waveform spring（6）, orifice plate plate body（9）, pressure pipe（5）, rotation
Shaft（10）, gear-box（11）, driver（12）, the left grip block（3）With the right grip block（4）Edge pass through it is double
Header stud（13）It links into an integrated entity, the straight pipe（1）It is truncated measuring position, two connecting tubes（2）It is installed on institute
State straight pipe（1）Block at position and respectively with the straight pipe（1）Welding, two connecting tubes（2）Docking site
Setting has the gap, two connecting tubes（2）Opposite one end outer wall respectively with the corresponding left grip block（3）It is inclined
Heart through-hole（32）With the right grip block（4）Eccentric through-hole（32）Welding, the left grip block（3）Eccentric through-hole（32）Place
It is provided with left stepped hole（14）, the waveform spring（6）With the left sealing ring（7）It is installed on the left stepped hole（14）It is interior,
The right grip block（4）Eccentric through-hole（32）Place is provided with right stepped hole（15）, the right sealing ring（8）It is installed on the right side
Stepped hole（15）It is interior, the circular orifice plate plate body（9）It is set to the left sealing ring（7）With the right sealing ring（8）Between
And it is located at two connecting tubes（2）Between gap in, the left grip block（3）With the right grip block（4）Center open
Equipped with the connecting tube（2）Parallel through-hole（17）, the rotary shaft（10）It is installed on the through-hole（17）It is interior, the orifice plate
Plate body（9）Center and the rotary shaft（10）Center overlap, the orifice plate plate body（9）It is socketed on the rotary shaft（10）On
And pass through the rotary shaft（10）Drive rotation, the orifice plate plate body（9）On along the circumferential direction uniform intervals be further opened with it is multiple
The throttle orifice of different bores（16）, in rotation process, the throttle orifice（16）Axis successively with the connecting tube（2）Axis
It overlaps, the rotary shaft（10）Stretch out the right grip block（4）Right end and the gear-box（11）Connection, the gear-box（11）
Left end passes through screw（18）With the right grip block（4）Right end connects, the gear-box（11）Right end and the driver（12）
Connection, the left grip block（3）With the right grip block（4）Interior pressure channel（19）With the pressure pipe（5）Connection, it is described
Pressure channel（19）Pass through ring casing（33）, annular space（34）With measurement pipeline（22）Connection.
2. rotation orifice plate metered flow device according to claim 1, which is characterized in that the rotary shaft（10）Corresponding institute
State orifice plate plate body（9）Position be provided with step outer circle outstanding（25）, the through-hole（17）The corresponding step outer circle（25）
Position be provided with stepped hole（27）, the stepped hole（27）With the rotary shaft（10）Step outer circle（25）Cooperation, it is described
Step outer circle（25）On be provided with spline（26）, the orifice plate plate body（9）Centre bore on be provided with and the spline（26）Match
The spline of conjunction（28）.
3. rotation orifice plate metered flow device according to claim 1, which is characterized in that the connecting tube（2）Connection
Pipe（2）Centre bore and the straight pipe（1）Straight pipe（1）Centre bore passes through the orifice plate plate body（9）Throttle orifice（16）Even
It is logical.
4. rotation orifice plate metered flow device according to claim 1, which is characterized in that two connecting tubes（2）'s
The one end being connected to each other is provided with step outer circle（25）, the eccentric through-hole（32）With the connecting tube（2）Step outer circle（25）
Position forms the ring casing（33）.
5. according to rotation orifice plate metered flow device described in claim 1, which is characterized in that two connecting tubes（2）Phase
The end face of docking and the orifice plate plate body（9）The annular space of end face formation width 2mm（34）.
6. rotation orifice plate metered flow device according to claim 1, which is characterized in that the driver（12）For handwheel
（35）Or Electric Motor Wheel, user is by rotating the handwheel（35）Or In-wheel-motor driving orifice plate plate body（9）Rotation.
7. rotation orifice plate metered flow device according to claim 1, which is characterized in that the pressure channel（19）Setting
In the left grip block（3）With the right grip block（4）It is interior, the pressure channel（19）Pass through the ring casing（33）, the ring
Gap（34）With measurement pipeline（22）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820219621.2U CN207832253U (en) | 2018-02-08 | 2018-02-08 | Rotate orifice plate metered flow device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820219621.2U CN207832253U (en) | 2018-02-08 | 2018-02-08 | Rotate orifice plate metered flow device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207832253U true CN207832253U (en) | 2018-09-07 |
Family
ID=63397627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820219621.2U Active CN207832253U (en) | 2018-02-08 | 2018-02-08 | Rotate orifice plate metered flow device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207832253U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168627A (en) * | 2018-02-08 | 2018-06-15 | 北京大漠石油工程技术有限公司 | Rotate orifice plate metered flow device |
| CN111735588A (en) * | 2020-08-10 | 2020-10-02 | 罗浮阀门集团有限公司 | Delivery test device and method for breather valve |
-
2018
- 2018-02-08 CN CN201820219621.2U patent/CN207832253U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168627A (en) * | 2018-02-08 | 2018-06-15 | 北京大漠石油工程技术有限公司 | Rotate orifice plate metered flow device |
| CN108168627B (en) * | 2018-02-08 | 2023-10-20 | 北京大漠石油工程技术有限公司 | Flow metering device with rotary orifice plate |
| CN111735588A (en) * | 2020-08-10 | 2020-10-02 | 罗浮阀门集团有限公司 | Delivery test device and method for breather valve |
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