CN208872359U - A kind of metering device for engineering flow measurement - Google Patents
A kind of metering device for engineering flow measurement Download PDFInfo
- Publication number
- CN208872359U CN208872359U CN201821832505.4U CN201821832505U CN208872359U CN 208872359 U CN208872359 U CN 208872359U CN 201821832505 U CN201821832505 U CN 201821832505U CN 208872359 U CN208872359 U CN 208872359U
- Authority
- CN
- China
- Prior art keywords
- switching
- section
- pipeline
- flow measurement
- connect
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model belongs to flow measurement technology field, more particularly to a kind of metering device for engineering flow measurement, device is arranged in the fluid inside pipeline, including entrance, switching section, diffuser, detector and switching device, multiple toggle bits are provided in switching section, contraction section and trunnion section are provided in the toggle bit, the cross-sectional area of each trunnion section is all different, switching section is connect for changing the toggle bit of the switching section with switching device, and the outside of pipeline is arranged in the operating side of the switching device, the detector is connect with entrance and switching section respectively by pipeline, the section ratio for changing entrance and trunnion section is realized after switching over, to change the measurement range of device, achieve the effect that the flow velocity for adapting to different fluid, the operating side of switching device is arranged in pipeline external, It does not need to dismantle in device, only need to operate switching device in pipeline external, realize the switching of different station.
Description
Technical field
The utility model belongs to flow measurement technology field more particularly to a kind of instrument for engineering flow measurement fills
It sets.
Background technique
Product quality can be guaranteed for the accurate measurement of flow in the industrial production, improve production efficiency, existing stream
Measurement generallys use, and differential pressure flowmeter, spinner flowmeter, restriction flowmeter etc., wherein differential pressure flowmeter is current
Measuring flow is most mature in production, most common method, and the pressure difference generated when flowing through throttling set to fluid and is realized
Flow measurement；Throttling set generallys use Venturi tube, is retracted when fluid flows through the trunnion portion of Venturi tube, passes through measurement
The entrance of Venturi tube and the pressure difference value of trunnion section calculate uninterrupted, and the sectional area ratio of entrance and trunnion section
Determine the measurement range of flow, flow will cause measurement error in the case where changing, and need to change entrance and trunnion section
Section ratio is adjusted, and existing insert type flow measuring device needing replacing due to being integrally provided in inside pipeline
When need it is whole dismantled, can not complete to switch in pipeline external.
Utility model content
The brief overview about the utility model is given below, in order to provide certain sides about the utility model
The basic comprehension in face.It should be understood as that this general introduction is not the exhaustive general introduction about the utility model.It is not intended to
The key or pith of the utility model are determined, nor intended limitation the scope of the utility model.Its purpose be only with
Simplified form provides certain concepts, using as the preamble in greater detail discussed later.
In consideration of it, the utility model provides a kind of flow measurement device of simple structure and reasonable design, it can be achieved that passing through
Switching device changes the entrance of throttling set and the section ratio of trunnion section in pipeline external, at least to solve existing flow
Measuring device needs the problem of dismantling when adjusting, and realization is switched in pipeline external.
The technical solution of the utility model includes:
A kind of instrument and meter device for engineering flow measurement, described device are arranged in the fluid inside pipeline, packet
Entrance, switching section, diffuser, detector and switching device are included, multiple toggle bits are provided in the switching section, it is each described
Contraction section and trunnion section are provided in toggle bit, the cross-sectional area of each trunnion section is all different, the switching section with
Switching device connection, switching device for changing the switching section toggle bit, and the switching device operating side setting exist
The outside of pipeline, the detector are connect with entrance and switching section respectively by pipeline.
Further, the side of the trunnion section is provided with connecting tube, after switching section changes toggle bit, current location
The pipeline joint that the connecting tube of trunnion section is connect with detector and switching section.
Further, multiple toggle bit circular arrays of the switching section are arranged on switch plate, and switch plate is by switching
Device driving rotation.
Further, the driving device includes: turntable, the body of rod and bevel gear, and one end of the body of rod is connect with turntable,
The other end is connect with bevel gear, and the turntable setting is provided on the outside of pipeline external, the switch plate to be cooperated with bevel gear
Annular tooth.
Further, multiple toggle bits of the switching section switch frame by switching along setting arranged in a straight line on switching frame
Device driving moves up and down.
Further, the driving device includes: drive disk, screw rod and screw rod sliding block, one end of the screw rod and driving
Disk connection, the other end are socketed with screw rod sliding block, and screw rod sliding block is connect with the switching frame, and the drive disk is arranged outside pipeline
Portion.
It further, further include fixing seat, fixing seat provides support to be whole, and fixing seat is connected by welding and pipeline
It connects；
Since fluid is in the flowing for ignoring viscosity loss, the pressure potential of any two points, kinetic energy and geopotential energy on streamline
The sum of remain unchanged, according to Bernoulli equation, it is assumed that the average pressure P of entrance1, average speed V1, sectional area S1, fluid is close
Spend ρ, the average pressure P of trunnion section2, average speed V2, sectional area S2, flow through the flow Q of throttling set1, pipeline flow Q, pipeline
Sectional area S3, it can obtain:
It is equal according to the flow of two o'clock, it can obtain:
Q1=S1V1=S2V2
It can be obtained according to the section of pipeline and entrance ratio:
It calculates:
Therefore it after the pressure for measuring entrance and trunnion section, according to the section ratio of entrance and pipeline, can be obtained
Flow in pipeline.
The utility model has the following beneficial effects:
1) throttling set of the utility model is built-in with several toggle bits, be provided in each toggle bit contraction section and
Trunnion section generates multiple contraction sections that can be switched over and trunnion section, since the diameter of section of each trunnion section is all different,
The section ratio that change entrance and trunnion section are realized after switching over reaches to change the measurement range of device
Adapt to the effect of the flow velocity of different fluid.
2) operating side of the switching device of the utility model is arranged in pipeline external, does not need to fill when switching over
It sets and is dismantled, only need to operate switching device in pipeline external, realize the switching of different station.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the Section A-A schematic diagram in Fig. 1；
Fig. 3 is structural schematic diagram of the utility model in specific embodiment three；
Fig. 4 is structural schematic diagram of the utility model in specific embodiment four；
Fig. 5 is structural schematic diagram of the utility model in specific embodiment five and six；
Fig. 6 is structural schematic diagram of the utility model in specific embodiment seven；
In figure: 1 entrance；2 switching sections；3 diffusers；4 detectors；5 switching devices；6 pipelines；7 fixing seats；2-1 is shunk
Section；2-2 trunnion section；2-3 switch plate；2-4 switches frame；5-1 turntable；The 5-2 body of rod；5-3 bevel gear；5-4 drive disk；5-5 screw rod；
5-6 screw rod sliding block；2-2-1 connecting tube.
Specific embodiment
Below with reference to attached drawing, the utility model is described in detail:
Specific embodiment one
As shown in connection with fig. 1, a kind of instrument and meter device for engineering flow measurement, described device disclosed in the present embodiment
It is arranged in the fluid inside pipeline 6, including entrance 1, switching section 2, diffuser 3, detector 4 and switching device 5, it is described to cut
It changes in section 2 and is provided with multiple toggle bits, contraction section 2-1 and trunnion section 2-2 are provided in each toggle bit, it is each described
The cross-sectional area of trunnion section 2-2 is all different, and the switching section 2 is connect with switching device 5, and switching device 5 is for changing described
The toggle bit of switching section 2, and the outside of pipeline 6 is arranged in the operating side of the switching device 5, the detector 4 passes through pipeline
It is connect respectively with entrance 1 and switching section 2；In the present embodiment, switched by changing in 6 peripheral operation switching device 5 of pipeline
The toggle bit of section 3, docks the trunnion section 2-2 of different cross-sectional with entrance and diffuser 3, is detected by detector 4
The pressure of the trunnion section of entrance 1 and current toggle bit changes the trunnion section sectional area of throttling set, to change the survey of flow
Amount range does not need to be dismantled by the way of peripheral operation, while having multiple trunnion sections for detection, single
It can be switched over when the blocking damage of trunnion section；
Since fluid is in the flowing for ignoring viscosity loss, the pressure potential of any two points, kinetic energy and geopotential energy on streamline
The sum of remain unchanged, according to Bernoulli equation, it is assumed that the average pressure P of entrance1, average speed V1, sectional area S1, fluid is close
Spend ρ, the average pressure P of trunnion section2, average speed V2, sectional area S2, flow through the flow Q of throttling set1, pipeline flow Q, pipeline
Sectional area S3, it can obtain:
It is equal according to the flow of two o'clock, it can obtain:
Q1=S1V1=S2V2
It can be obtained according to the section of pipeline and entrance ratio:
It calculates:
Therefore it after the pressure for measuring entrance and trunnion section, according to the section ratio of entrance and pipeline, can be obtained
Flow in pipeline.
Specific embodiment two
The present embodiment be on the basis of specific embodiment one, specifically, as shown in connection with fig. 2, the trunnion section 2-2's
Side is provided with connecting tube 2-2-1, after switching section 2 changes toggle bit, the connecting tube 2-2-1 of the trunnion section 2-2 of current location
The pipeline joint being connect with detector 4 and switching section 2；
The connection type for present embodiments providing a kind of trunnion section and detector 4, by the side of each trunnion section 2-2
Connecting tube 2-2-1, after trunnion section 2-2 is switched to toggle bit, the connecting tube 2-2-1 of the trunnion section 2-2 of current toggle bit are set
It is docked with the nozzle of detector 4.
Specific embodiment three
The present embodiment be on the basis of specific embodiment one or two, specifically, as shown in connection with fig. 3, the switching section 2
Multiple toggle bit circular arrays be arranged on switch plate 2-3, switch plate 2-3 by switching device 5 drive rotate；
The arrangement for present embodiments providing a kind of toggle bit, by switching the setting of multiple toggle bit annular arrays
On disk 2-3, switch plate 2-3 rotation is driven by switching device 5, realizes the switching of different toggle bits.
Specific embodiment four
The present embodiment is on the basis of specific embodiment three, and specifically, as shown in connection with fig. 4, the driving device 5 is wrapped
Include: turntable 5-1, body of rod 5-2 and bevel gear 5-3, one end of the body of rod 5-2 are connect with turntable 5-1, the other end and bevel gear 5-
3 connections, the turntable 5-1 are arranged outside pipeline 6, and the ring with bevel gear 5-3 cooperation is provided on the outside of the switch plate 2-3
Shape tooth；
The structure for present embodiments providing a kind of switching device 5 of driving switch plate 2-3 rotation, is rotatably arranged on pipeline 6
External turntable 5-1 is rotated by body of rod 5-2 driving bevel gear 5-3, rotates switch plate 2-3.
Specific embodiment five
The present embodiment be on the basis of specific embodiment one or two, specifically, as shown in connection with fig. 5, the switching section 2
Multiple toggle bits along it is arranged in a straight line setting switching frame 2-4 on, switching frame 2-4 by switching device 5 drive move up and down；
The arrangement for present embodiments providing a kind of toggle bit, by cutting multiple toggle bits along setting arranged in a straight line
It changes on frame 2-4, drives switching frame 2-4 to move up and down by switching device 5, realize the switching of different toggle bits.
Specific embodiment six
The present embodiment is on the basis of specific embodiment five, and specifically, as shown in connection with fig. 5, the driving device 5 is wrapped
Include: drive disk 5-4, screw rod 5-5 and screw rod sliding block 5-6, one end of the screw rod 5-5 are connect with drive disk 5-4, other end socket
There are screw rod sliding block 5-6, screw rod sliding block 5-6 to connect with the switching frame 2-4, the drive disk 5-4 is arranged outside pipeline 6；
Present embodiments provide a kind of driving structure of driving device 5 that driving switching frame 2-4 moves up and down, rotation setting
Drive disk 5-4 outside pipeline 6, screw rod 5-5 rotation, screw rod sliding block 5-6 are slided on screw rod 5-5, are driven on switching frame 2-4
Lower movement.
Specific embodiment seven
The present embodiment specifically, as shown in connection with fig. 6, is also wrapped on the basis of specific embodiment one, two, four or six
Fixing seat 7 is included, fixing seat 7 provides support to be whole, and fixing seat 7 is connect by welding with pipeline 6.
Above embodiments are exemplary description of this patent, do not limit its protection scope, those skilled in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (7)
1. a kind of metering device for engineering flow measurement, described device setting is in the internal fluid of pipeline (6), feature
It is, including entrance (1), switching section (2), diffuser (3), detector (4) and switching device (5), in the switching section (2)
Multiple toggle bits are provided with, contraction section (2-1) and trunnion section (2-2), each larynx are provided in each toggle bit
The cross-sectional area of pipeline section (2-2) is all different, and the switching section (2) connect with switching device (5), and switching device (5) is for changing
Become the toggle bit of the switching section (2), and the operating side of the switching device (5) is arranged in the outside of pipeline (6), the detection
Device (4) is connect with entrance (1) and switching section (2) respectively by pipeline.
2. a kind of metering device for engineering flow measurement according to claim 1, which is characterized in that the trunnion section
The side of (2-2) is provided with connecting tube (2-2-1), after switching section (2) change toggle bit, the trunnion section (2-2) of current location
The pipeline joint that is connect with detector (4) and switching section (2) of connecting tube (2-2-1).
3. a kind of metering device for engineering flow measurement according to claim 1 or 2, which is characterized in that described to cut
The multiple toggle bit circular arrays for changing section (2) are arranged on switch plate (2-3), and switch plate (2-3) is driven by switching device (5)
Rotation.
4. a kind of metering device for engineering flow measurement according to claim 3, which is characterized in that the switching dress
Setting (5) includes: turntable (5-1), the body of rod (5-2) and bevel gear (5-3), and one end of the body of rod (5-2) and turntable (5-1) are even
It connects, the other end is connect with bevel gear (5-3), and turntable (5-1) setting is external in pipeline (6), outside the switch plate (2-3)
Side is provided with the annular tooth with bevel gear (5-3) cooperation.
5. a kind of metering device for engineering flow measurement according to claim 1 or 2, which is characterized in that described to cut
The multiple toggle bits for changing section (2) are arranged in switching frame (2-4) along arranged in a straight line, and switching frame (2-4) is driven by switching device (5)
It moves up and down.
6. a kind of metering device for engineering flow measurement according to claim 5, which is characterized in that the switching dress
Setting (5) includes: drive disk (5-4), screw rod (5-5) and screw rod sliding block (5-6), one end and the drive disk (5- of the screw rod (5-5)
4) it connects, the other end is socketed with screw rod sliding block (5-6), and screw rod sliding block (5-6) is connect with the switching frame (2-4), the driving
Disk (5-4) setting is external in pipeline (6).
7. a kind of according to claim 1, metering device for engineering flow measurement described in 2,4 or 6, which is characterized in that also
Including fixing seat (7), fixing seat (7) provides support to be whole, and fixing seat (7) is connect by welding with pipeline (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821832505.4U CN208872359U (en) | 2018-11-07 | 2018-11-07 | A kind of metering device for engineering flow measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821832505.4U CN208872359U (en) | 2018-11-07 | 2018-11-07 | A kind of metering device for engineering flow measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208872359U true CN208872359U (en) | 2019-05-17 |
Family
ID=66471337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821832505.4U Expired - Fee Related CN208872359U (en) | 2018-11-07 | 2018-11-07 | A kind of metering device for engineering flow measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208872359U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833968A (en) * | 2021-01-29 | 2021-05-25 | 江苏华尔威科技集团有限公司 | Wide-range high-temperature-resistant steam two-phase flowmeter |
| CN112833969A (en) * | 2021-01-29 | 2021-05-25 | 江苏华尔威科技集团有限公司 | High-precision vortex shedding flowmeter |
-
2018
- 2018-11-07 CN CN201821832505.4U patent/CN208872359U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833968A (en) * | 2021-01-29 | 2021-05-25 | 江苏华尔威科技集团有限公司 | Wide-range high-temperature-resistant steam two-phase flowmeter |
| CN112833969A (en) * | 2021-01-29 | 2021-05-25 | 江苏华尔威科技集团有限公司 | High-precision vortex shedding flowmeter |
| CN112833969B (en) * | 2021-01-29 | 2024-04-02 | 江苏华尔威科技集团有限公司 | High-precision vortex shedding flowmeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208872359U (en) | A kind of metering device for engineering flow measurement | |
| CN201651418U (en) | Rotary type two-position multichannel reversing valve | |
| CN216742887U (en) | Medium flow adjusting structure of handle butterfly valve | |
| CN208818263U (en) | A kind of detection of natural gas differential pressure flowmeter | |
| CN103424149A (en) | Olive-shaped differential pressure flow meter | |
| CN204344481U (en) | Axial-flow pump device diffuser average exit speed circular rector affects the model test apparatus of outlet passage hydraulic performance | |
| CN206862426U (en) | A kind of shrunk type Venturi meter | |
| WO2015089899A1 (en) | Rotation-type flowmeter | |
| CN104913069B (en) | Adjustable-flow valve | |
| CN110541461A (en) | Drop energy-dividing energy-dissipating plastic inspection well | |
| CN206095319U (en) | Measuring room subassembly of turbine gas table | |
| CN208750057U (en) | Convert the valve rod displacement device of valve water (flow) direction | |
| CN201963948U (en) | Liquid distributing valve | |
| CN211037225U (en) | Drop energy-dividing energy-dissipating plastic inspection well | |
| CN110629728B (en) | Pipeline impact jet flow uniform aeration generating device | |
| CN110672167A (en) | Method for widening flow measurement range of throttling device | |
| CN211626582U (en) | Commutator structure for flow experiment | |
| CN216524165U (en) | Hydraulic engineering is with novel drainage pipe flow monitoring device | |
| CN102141417A (en) | Improved spiral wing water meter | |
| CN210638743U (en) | Throttling flowmeter | |
| CN108375402A (en) | Power station hydraulic turbine inflow-rate of water turbine on-line measurement system based on split-stream sampling method | |
| CN219413616U (en) | Split-flow three-way valve | |
| CN201983808U (en) | Improved Woltmann water meter | |
| CN220508142U (en) | Anti-blocking V-cone flowmeter | |
| CN109596184A (en) | A kind of hybrid water meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20191107 |