CN209342180U - A kind of Pi Tuoba flowmeter - Google Patents

A kind of Pi Tuoba flowmeter Download PDF

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Publication number
CN209342180U
CN209342180U CN201920160712.8U CN201920160712U CN209342180U CN 209342180 U CN209342180 U CN 209342180U CN 201920160712 U CN201920160712 U CN 201920160712U CN 209342180 U CN209342180 U CN 209342180U
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pressure
static
tube
ram
air pipe
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CN201920160712.8U
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赵元福
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Nanjing Shan Yuanchenbo Automation Equipment Co Ltd
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Nanjing Shan Yuanchenbo Automation Equipment Co Ltd
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Abstract

The utility model relates to a kind of Pi Tuoba flowmeters, including pressure head, Pitot tube and inductive head, the Pitot tube connects the pressure head and the inductive head, the pressure head includes static pressure hole and full pressure hole, the Pitot tube includes static tube and ram-air pipe, more inductive heads includes static pressure inlet and total pressure connector, the static tube connects the static pressure hole and static pressure inlet, the ram-air pipe connection full pressure hole and total pressure connector, cooling duct is installed in the static tube and ram-air pipe peripheral tray, circulation has recirculated cooling water in the cooling duct, the cooling duct is connected with micromotor and cooling water, the cooling water is under the action of the micromotor in the cooling duct internal circulation flow;Temperature sensor is equipped in the ram-air pipe and static tube, the temperature sensor connects the micromotor.The flowmeter is suitable for the high temperature measurement of fluid.

Description

A kind of Pi Tuoba flowmeter
Technical field
The present invention relates to a kind of flowmeter more particularly to a kind of Pi Tuoba flowmeters.
Background technique
Pi Tuoba flowmeter is that a curved double-layer hollow at right angle answers platform bone, has multiple pressure ports, can measure simultaneously Fluid stagnation pressure and static pressure.It is matched with differential pressure speed changer, Flow Measurement Display Meter.It petrochemical industry, metallurgy, power plant, electric power, It is widely used in the production process of the industries such as light textile, flow measurement is carried out to fluids such as gas, liquid, steam, water, air quantity.
An aperture is provided in the Pitot tube head direction Ying Liu and is known as full pressure hole, " stationary point " is formed at this, away from head At a certain distance from be provided with it is several perpendicular to fluid flow direction the surveyed static pressure of each static pressure hole of static pressure hole exported after equal pressure chamber is pressed, Since the flow velocity of the stagnation pressure of fluid and the difference of static pressure and detected fluid has determining numerical relation, can be measured with Pitot tube Fluid flow rate is to calculate the size of measured flux.
Pitot tube have crushing it is small, it is cheap, it is small in size, it is easy to carry, installation and measurement the advantages that, be suitable in, The fluid flow rate at any point and velocity flow profile measurement in the flow measurement and air hose of big-diameter pipeline, water pipe and mine.
The measurement environment of existing pitot tube flowmeter has certain requirement to temperature, is higher than measurement result after certain temperature It is affected, and then leads to measurement inaccuracy.
Summary of the invention
The present invention is temperature limited in order to solve existing pitot tube flowmeter measurement, and temperature is excessively high to cause measurement result inaccurate The problem of, a kind of Pi Tuoba flowmeter is provided, which is suitable for the high temperature measurement of fluid.
The technical solution used in the present invention are as follows: a kind of Pi Tuoba flowmeter, including pressure head, Pitot tube and inductive head, The Pitot tube connects the pressure head and the inductive head, the pressure head include static pressure hole and full pressure hole, the Pitot tube Including static tube and ram-air pipe, more inductive heads includes static pressure inlet and total pressure connector, and the static tube connects the static pressure hole And static pressure inlet, the ram-air pipe connection full pressure hole and total pressure connector, it is installed in the static tube and ram-air pipe peripheral tray cold But channel, circulation has recirculated cooling water in the cooling duct, and the cooling duct is connected with micromotor and cooling water, described Cooling water is under the action of the micromotor in the cooling duct internal circulation flow;In the ram-air pipe and static tube Equipped with temperature sensor, the temperature sensor connects the micromotor, in the static pressure inlet and total pressure connector respectively Equipped with first pressure sensor and second pressure sensor.
Further, the inductive head is arranged in mounting base, and the flowmeter is fixed on pipe under test by mounting base On.
Further, the axis of the ram-air pipe and the static tube is parallel to each other.
Further, the temperature sensor is connected with display screen, and the display screen is for showing the temperature sensor The temperature value sensed.
Further, the static pressure hole vertical fluid flow direction setting, the full pressure hole aperture is arranged in inclined-plane.
Further, full pressure hole aperture inclined-plane and ram-air pipe axis angle are 40 ~ 60 °.
Further, the total pressure bore is greater than the static pressure bore.
Beneficial effect caused by the present invention includes: that the Pi Tuoba flowmeter in the present invention is provided with temperature regulating device, can be right Fluid to be measured temperature is controlled, the micromotor driving flow of cooling water when fluid temperature (F.T.) is excessively high, in static tube and ram-air pipe It is equipped with temperature sensor, the cooling duct of periphery is relatively independent, opposite micromotor is connected separately with, when in ram-air pipe When the temperature is excessively high, the water in the cooling duct outside ram-air pipe goes into circulation cooling, when static tube and excessively high ram-air pipe temperature, Water in two cooling ducts flows;The present invention is respectively arranged with first pressure sensor on static pressure inlet and total pressure connector With second pressure sensor, pressure compensation is carried out convenient for the monitoring result to flow;Full pressure hole uses incline plane type, protects well Impact of the Fluid pressure to full pressure hole has been protected, the service life of Pi Tuoba flowmeter is increased.
Detailed description of the invention
The structural schematic diagram of Pi Tuoba flowmeter in Fig. 1 present invention;
1, static pressure hole in figure, 2, full pressure hole, 3, static tube, 4, ram-air pipe, 5, static pressure inlet, 6, total pressure connector, 7, installation Seat, 8, cooling duct, 9, temperature sensor.
Specific embodiment
Further details of explanation is done to the present invention with reference to the accompanying drawings and detailed description, it should be appreciated that The protection scope of the present invention is not limited by the specific implementation manner.
As shown in Figure 1, the present invention relates to a kind of Pi Tuoba flowmeter, including pressure head, Pitot tube and inductive head, the skin Trustship connects the pressure head and the inductive head, the pressure head include static pressure hole 1 and full pressure hole 2, and the Pitot tube includes Static tube 3 and ram-air pipe 4, more inductive heads include static pressure inlet 5 and total pressure connector 6, and the static tube 3 connects the static pressure hole 1 and static pressure inlet 5, the ram-air pipe 4 connects full pressure hole 2 and total pressure connector 6, spirals in the static tube 3 and 4 periphery of ram-air pipe Equipped with cooling duct 8, circulation has a recirculated cooling water in the cooling duct 8, and the cooling duct 8 is connected with micromotor and cold But water, the cooling water is under the action of the micromotor in 8 internal circulation flow of cooling duct;In the ram-air pipe 4 With temperature sensor 9 is equipped in static tube 3, the temperature sensor 9 connects the micromotor by controller, works as temperature The temperature that sensor 9 detects is higher than the Applicable temperature of flowmeter, then starts micromotor by controller, connect in the static pressure First 5 and total pressure connector 6 in be respectively equipped with first pressure sensor and second pressure sensor.
Pi Tuoba flowmeter in the present invention is provided with temperature regulating device, i.e. cooling duct 8, micromotor and temperature sensor 9, fluid to be measured temperature can be controlled, when fluid temperature (F.T.) is excessively high, micromotor drives flow of cooling water, static tube 3 and complete Temperature sensor 9 is equipped in pressure pipe 4, the cooling duct 8 of periphery is relatively independent, it is connected separately with opposite micromotor, When the temperature is excessively high, the water in cooling duct 8 outside ram-air pipe 4 goes into circulation cooling, when static tube 3 and total pressure in ram-air pipe 4 When 4 temperature of pipe is excessively high, the water in two cooling ducts 8 flows;The present invention distinguishes on static pressure inlet 5 and total pressure connector 6 It is provided with first pressure sensor and second pressure sensor, carries out pressure compensation convenient for the monitoring result to flow;
Pi Tuoba flowmeter in the present invention needs to be fixed in pipe under test, so that full pressure hole 2 is towards fluid, therefore the stream Meter is fixed in pipe under test by mounting base 7, and pressure head protrudes into pipeline.
The axis of the ram-air pipe 4 and the static tube 3 is parallel to each other.The temperature sensor 9 is connected with display screen, institute Display screen is stated for showing the temperature value that the temperature sensor 9 senses, convenient for temperature regime in observation tube.
The setting of 1 vertical fluid of static pressure hole flow direction, 2 aperture of full pressure hole are arranged in inclined-plane in the present invention.2 aperture of full pressure hole Inclined-plane and 4 axis angle of ram-air pipe are 40 ~ 60 °, and full pressure hole 2 uses incline plane type, protect Fluid pressure to total pressure well The impact in hole 2 increases the service life of Pi Tuoba flowmeter.Ram-air pipe 4 in order to guarantee the precision of measurement result, in the present invention Internal diameter is greater than 3 internal diameter of static tube.
The above is only a preferred embodiment of the present invention, and the present invention is not limited in the content of embodiment.For in this field Technical staff for, can have various change and change within the scope of technical solution of the present invention, made any variation and Change, within that scope of the present invention.

Claims (8)

1. a kind of Pi Tuoba flowmeter, it is characterised in that: including pressure head, Pitot tube and inductive head, the Pitot tube connects institute Pressure head and the inductive head are stated, the pressure head includes static pressure hole and full pressure hole, and the Pitot tube includes static tube and total pressure Pipe, more inductive heads include static pressure inlet and total pressure connector, and the static tube connects the static pressure hole and static pressure inlet, described complete Pressure pipe connects full pressure hole and total pressure connector, is installed with cooling duct in the static tube and ram-air pipe peripheral tray, the cooling is logical Circulation has recirculated cooling water in road, and the cooling duct is connected with micromotor and cooling water, and the cooling water is described miniature In the cooling duct internal circulation flow under the action of motor;It is equipped with temperature sensor in the ram-air pipe and static tube, The temperature sensor connects the micromotor.
2. Pi Tuoba flowmeter according to claim 1, it is characterised in that: the inductive head is arranged in mounting base, institute Flowmeter is stated to be fixed in pipe under test by mounting base.
3. Pi Tuoba flowmeter according to claim 1, it is characterised in that: the axis of the ram-air pipe and the static tube It is parallel to each other.
4. Pi Tuoba flowmeter according to claim 1, it is characterised in that: the temperature sensor is connected with display screen, The display screen is for showing the temperature value that the temperature sensor senses arrive.
5. Pi Tuoba flowmeter according to claim 1, it is characterised in that: the static pressure hole vertical fluid flow direction setting, The full pressure hole aperture is arranged in inclined-plane.
6. Pi Tuoba flowmeter according to claim 5, it is characterised in that: full pressure hole aperture inclined-plane and ram-air pipe axis Wire clamp angle is 40 ~ 60 °.
7. Pi Tuoba flowmeter according to claim 1, it is characterised in that: the total pressure bore is greater than the static tube Internal diameter.
8. Pi Tuoba flowmeter according to claim 1, it is characterised in that: divide in the static pressure inlet and total pressure connector It She You not first pressure sensor and second pressure sensor.
CN201920160712.8U 2019-01-30 2019-01-30 A kind of Pi Tuoba flowmeter Active CN209342180U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920160712.8U CN209342180U (en) 2019-01-30 2019-01-30 A kind of Pi Tuoba flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920160712.8U CN209342180U (en) 2019-01-30 2019-01-30 A kind of Pi Tuoba flowmeter

Publications (1)

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CN209342180U true CN209342180U (en) 2019-09-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111551219A (en) * 2020-05-18 2020-08-18 重庆市科学技术研究院 Pitot tube structure
CN111551218A (en) * 2020-05-18 2020-08-18 重庆市科学技术研究院 Pitot tube flow measuring instrument
CN114252112A (en) * 2021-12-15 2022-03-29 无锡欧百仪表科技有限公司 Vortex flowmeter with high heat dissipation performance

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111551219A (en) * 2020-05-18 2020-08-18 重庆市科学技术研究院 Pitot tube structure
CN111551218A (en) * 2020-05-18 2020-08-18 重庆市科学技术研究院 Pitot tube flow measuring instrument
CN111551218B (en) * 2020-05-18 2021-11-09 重庆市科学技术研究院 Pitot tube flow measuring instrument
CN111551219B (en) * 2020-05-18 2021-11-09 重庆市科学技术研究院 Pitot tube structure
CN114252112A (en) * 2021-12-15 2022-03-29 无锡欧百仪表科技有限公司 Vortex flowmeter with high heat dissipation performance

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