CN208092077U - A kind of feedwater piping flow rate measuring device - Google Patents
A kind of feedwater piping flow rate measuring device Download PDFInfo
- Publication number
- CN208092077U CN208092077U CN201820700700.5U CN201820700700U CN208092077U CN 208092077 U CN208092077 U CN 208092077U CN 201820700700 U CN201820700700 U CN 201820700700U CN 208092077 U CN208092077 U CN 208092077U
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- CN
- China
- Prior art keywords
- bend pipe
- feedwater piping
- pipe
- measuring device
- flow rate
- 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
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Abstract
The utility model discloses a kind of feedwater piping flow rate measuring devices, including two pressure sensors being disposed in feedwater piping, one of pressure sensor is arranged in bend pipe I, another pressure sensor is arranged in bend pipe II, the bend pipe I and II lower end of the bend pipe are separately fixed on two sensor installation seats, the sensor installation seat is fixed in the outside of feedwater piping, two pressure sensors are separately mounted on two sensor installation seats, the bend pipe I is arranged in the upstream of the bend pipe II, the bend pipe I and II upper end of the bend pipe are free end, the free end of the bend pipe I meets water setting, the free end backwater setting of the bend pipe II.The utility model is because the structure that measuring device is mounted in pipeline is smaller, and the space occupied in pipeline is smaller, and the water resistance of formation is smaller, therefore measurement result can be made more accurate.
Description
Technical field
The utility model is related to flow rate of water flow measuring device in a kind of pipeline, the flow stream in especially a kind of feedwater piping
Speed measuring device.
Background technology
Although there are many device for currently measuring pipe flow speed, measuring instrument is directly typically installed on pipeline, such as
Pitot tube flow measurement speed variator, vortex-shedding meter speed measuring device, orifice flowmeter speed measuring device and ultrasonic flow rate measurement speed
Device needs to be directly installed in pipeline, and the space occupied in pipeline is larger so that resistance to water-flow is larger, and measurement result is inadequate
Accurately.
Invention content
The utility model provides a kind of flow stream in feedwater piping to solve technical problem present in known technology
The measurement result accuracy of speed measuring device, the device is higher.
The utility model is adopted the technical scheme that solve technical problem present in known technology：A kind of feed pipe
Road flow rate measuring device, including two pressure sensors being disposed in feedwater piping, one of pressure sensor are set
It sets in bend pipe I, another pressure sensor is arranged in bend pipe II, and the bend pipe I and II lower end of the bend pipe are fixed respectively
On two sensor installation seats, the sensor installation seat is fixed in the outside of feedwater piping, two pressure sensors
It is separately mounted on two sensor installation seats, the bend pipe I is arranged in the upstream of the bend pipe II, I He of the bend pipe
II upper end of the bend pipe is free end, and the free end of the bend pipe I meets water setting, and the free end backwater of the bend pipe II is arranged.
The distance between two described pressure sensors >=200mm.
The bend pipe I and the bend pipe II are streamlined reducing pipe, and the diameter of the streamlined reducing pipe is from bottom to up
It is gradually reduced.
The bend pipe I and the bend pipe II are reducing pipe, and the diameter of the reducing pipe is gradually reduced from bottom to up.
The bend pipe I and the bend pipe II are all made of streamlined structure.
In the pipeline section that two pressure sensors are arranged in feedwater piping, it is respectively provided at the both ends of the pipeline section
The distance between one connecting flange, the connecting flange and described pressure sensor for being adjacent to >=200mm.
The pipeline section, the bend pipe I and the bend pipe II are using made of stainless steel tube.
The utility model has the advantages and positive effects of：It is separately positioned on two by using by two pressure sensors
The structure that upstream face and backwater surface pressure are measured in a bend pipe, obtains pressure difference, the flow velocity in pipeline can be calculated by pressure difference, because
The structure that measuring device is mounted in pipeline is smaller, and the space occupied in pipeline is smaller, and the water resistance of formation is smaller, therefore can make survey
It is more accurate to measure result.It can conveniently and efficiently realize the measurement of any one flow velocity in pipeline, not complicated mechanical structure
And instrument, simple in structure, cost is relatively low, highly practical, economical and practical；Be integrally formed after integration, maintenance is convenient, reliability and
High stability, operational process is full-automatic, so only needing to inspect periodically repair, installation maintenance is convenient；It is simple in structure, it adopts
Use the material with good corrosion resistance and wear resistance as fixed material, securely and reliably；Bend pipe uses streamlined undergauge
Pipe, reduces the resistance and turbulence effect of flow so that measurement result accuracy is higher.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the 1-1 sectional views of Fig. 1.
In figure：1, connecting flange；2, pipeline section；3, bend pipe I；4, bend pipe II；5, sensor installation seat.
Specific implementation mode
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Detailed description are as follows for attached drawing：
~Fig. 2, a kind of feedwater piping flow rate measuring device are please referred to Fig.1, including two be disposed in feedwater piping
A pressure sensor, one of pressure sensor are arranged in bend pipe I 3, another pressure sensor is arranged in bend pipe II 4
In, the bend pipe I 3 and II 4 lower end of the bend pipe are separately fixed at 5 on two sensor installation seats, the sensor installation seat 5
It is fixed in the outside of feedwater piping, two pressure sensors are separately mounted on two sensor installation seats 5, described
Bend pipe I 3 is arranged in the upstream of the bend pipe II 4, and the bend pipe I 3 and II 4 upper end of the bend pipe are free end, the bend pipe I 3
Free end meet water setting, the free end backwater setting of the bend pipe II 4.
In the present embodiment, the distance between two described pressure sensors >=200mm, to prevent from mutually doing between the two
It disturbs, reducing water turbulence influences.The bend pipe I 3 and the bend pipe II 4 are streamlined reducing pipe, the streamlined reducing pipe
Diameter be gradually reduced from bottom to up, streamlined avoidable generation vortex, reducing pipe can reduce the resistance of flow so that measure
As a result more accurate.The bend pipe I 3 and the bend pipe II 4 can also use reducing pipe, the diameter of the reducing pipe from down toward
On be gradually reduced；The bend pipe I 3 and the bend pipe II can also use streamlined structure.In order to facilitate the installation of and overhaul, two
In the pipeline section 2 that the pressure sensor is arranged in feedwater piping, a connecting flange is respectively provided at the both ends of the pipeline section 2
1, the distance between the connecting flange 1 and the pressure sensor that is adjacent to >=200mm.In order to reduce wall effect
It influences, the bend pipe I 3 and II 4 free end of the bend pipe are respectively positioned at the central axis of feedwater piping.It is the pipeline section 2, described curved
Pipe I 3 and the bend pipe II 4 are used made of stainless steel tube, because stainless steel tube has good corrosion resistance, wear resistance
And greater hardness, it is ensured that above-mentioned feedwater piping flow rate measuring device has longer service life.
The operation principle of the utility model：
After flow enters feedwater piping, the pressure at upstream face a and at back side b is different.Pressure in bend pipe I 3
Reaction is pressure at upstream face a, and the stress reaction in bend pipe II 4 is pressure at back side b.In bend pipe I 3
Pressure sensor and the pressure sensor in bend pipe II 4 measure the pressure of upstream face and back side respectively, pass through calculating
Go out its pressure difference, and the flow velocity of water in pipeline can be calculated by the relationship of pressure difference and flow velocity.Specific formula is as follows：
The pressure that pressure sensor in bend pipe I 3 measures at upstream face a is：
The pressure that pressure sensor in bend pipe II 4 measures at back side b is：
Pressure difference：
Flow velocity：
Wherein：Pa:The pressure (m) of upstream face；PbZ:The pressure (m) of back side；P:Pressure (Pa)
ρ：Density (kg/cm3)；g:Acceleration of gravity (9.8m/s2)；V:Speed (m/s)
ΔP：Pressure difference (m)；Pressure head；Velocity head
Although the preferred embodiment of the utility model is described above in conjunction with attached drawing, the utility model is not
It is confined to above-mentioned specific implementation mode, the above mentioned embodiment is only schematical, is not restrictive, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under the enlightenment of the utility model
In the case of range, many forms can also be made, these are belonged within the scope of protection of the utility model.
Claims (7)
1. a kind of feedwater piping flow rate measuring device, which is characterized in that including two pressure being disposed in feedwater piping
Sensor, one of pressure sensor are arranged in bend pipe I, another pressure sensor is arranged in bend pipe II, described curved
Pipe I and II lower end of the bend pipe are separately fixed on two sensor installation seats, and the sensor installation seat is fixed in feed pipe
The outside in road, two pressure sensors are separately mounted on two sensor installation seats, and the bend pipe I is arranged in institute
State the upstream of bend pipe II, the bend pipe I and II upper end of the bend pipe are free end, and the free end of the bend pipe I meets water setting, institute
State the free end backwater setting of bend pipe II.
2. feedwater piping flow rate measuring device according to claim 1, which is characterized in that two pressure sensors it
Between distance >=200mm.
3. feedwater piping flow rate measuring device according to claim 1, which is characterized in that the bend pipe I and the bend pipe
II is streamlined reducing pipe, and the diameter of the streamlined reducing pipe is gradually reduced from bottom to up.
4. feedwater piping flow rate measuring device according to claim 1, which is characterized in that the bend pipe I and the bend pipe
II is reducing pipe, and the diameter of the reducing pipe is gradually reduced from bottom to up.
5. feedwater piping flow rate measuring device according to claim 1, which is characterized in that the bend pipe I and the bend pipe
II is all made of streamlined structure.
6. feedwater piping flow rate measuring device according to claim 1, which is characterized in that two pressure sensors are set
Set in a pipeline section in feedwater piping, a connecting flange be respectively provided at the both ends of the pipeline section, the connecting flange and with
The distance between its close described pressure sensor >=200mm.
7. feedwater piping flow rate measuring device according to claim 6, which is characterized in that the pipeline section, I and of the bend pipe
The bend pipe II is using made of stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820700700.5U CN208092077U (en) | 2018-05-11 | 2018-05-11 | A kind of feedwater piping flow rate measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820700700.5U CN208092077U (en) | 2018-05-11 | 2018-05-11 | A kind of feedwater piping flow rate measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208092077U true CN208092077U (en) | 2018-11-13 |
Family
ID=64053049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820700700.5U Expired - Fee Related CN208092077U (en) | 2018-05-11 | 2018-05-11 | A kind of feedwater piping flow rate measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208092077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593957A (en) * | 2018-05-11 | 2018-09-28 | 天津大学 | A kind of feedwater piping flow rate measuring device |
| CN111443217A (en) * | 2020-04-16 | 2020-07-24 | 国网湖南省电力有限公司 | Device and system for measuring flow velocity of pipeline of water cooling system of phase modulator of transformer substation and application method of device and system |
-
2018
- 2018-05-11 CN CN201820700700.5U patent/CN208092077U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593957A (en) * | 2018-05-11 | 2018-09-28 | 天津大学 | A kind of feedwater piping flow rate measuring device |
| CN111443217A (en) * | 2020-04-16 | 2020-07-24 | 国网湖南省电力有限公司 | Device and system for measuring flow velocity of pipeline of water cooling system of phase modulator of transformer substation and application method of device and system |
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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: 20181113 Termination date: 20200511 |