CN218066960U - Resistance performance testing device for ventilation elbow pipeline - Google Patents

Resistance performance testing device for ventilation elbow pipeline Download PDF

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Publication number
CN218066960U
CN218066960U CN202221907866.7U CN202221907866U CN218066960U CN 218066960 U CN218066960 U CN 218066960U CN 202221907866 U CN202221907866 U CN 202221907866U CN 218066960 U CN218066960 U CN 218066960U
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China
Prior art keywords
pressure
pipeline
fan
measuring pipe
ventilation
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CN202221907866.7U
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Chinese (zh)
Inventor
倪岷樑
包柳花
王永春
曾毅你
方思民
仲忠堂
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Shanghai Electric Power Construction And Repair Co ltd
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Shanghai Electric Power Construction And Repair Co ltd
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Abstract

The utility model discloses a ventilation elbow pipeline resistance capability test device, including air regulation valve, the air regulation valve right side is connected with the fan, and the fan right side is connected with soft joint, and soft joint right side is connected with the air quantity control valve, and the air quantity control valve right side is equipped with pressure-measuring pipe I, and I right side of pressure-measuring pipe is equipped with the pressure-measuring return bend, and pressure-measuring return bend bottom is equipped with pressure-measuring pipe II, and the fan center is equipped with the pipeline center, and the pipeline center outside is equipped with pitot tube amount of wind pressure tester I. The resistance performance testing device for the ventilation elbow pipeline effectively calculates the wind pressure resistance performance of the elbow ventilation pipeline, is simple to operate and convenient to test, and aims to solve the problem of the wind pressure resistance performance of the elbow of the ventilation pipeline and verify the design under the condition that the traditional pressure drop test for testing the ventilation pipeline cannot test the wind pressure of the elbow.

Description

Resistance performance testing device for ventilation elbow pipeline
Technical Field
The utility model belongs to the technical field of marine wind power elbow air pipe wind pressure amount of wind test, concretely relates to ventilation elbow pipeline resistance capability test device.
Background
At present, sheet elbows of 45 degrees, 60 degrees and 90 degrees in offshore wind power projects are subjected to air leakage rate tests and operating pressure tests according to requirements of customers to check the performance of manufactured products, and pressure drop tests (on-way resistance measurement or friction resistance measurement) are used for verifying the designed types. The customer only provides the performance curve, does not have specific standard and requirement, experimental precision etc. and traditional person in charge's pressure drop test can't satisfy the requirement of return bend, so need a neotype ventilation elbow pipeline resistance capability test device of a section to solve above-mentioned problem, satisfies people's demand.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a ventilation elbow pipeline resistance capability test device to solve the problem that its experimental precision is low down.
In order to achieve the above object, the utility model provides a following technical scheme: a resistance performance testing device for a ventilation elbow pipeline comprises
Air regulation valve, the air regulation valve right side is connected with the fan, the fan right side is connected with the soft joint, the soft joint right side is connected with the air quantity control valve, the air quantity control valve right side is equipped with pressure-measuring pipe I, I right side of pressure-measuring pipe is equipped with the pressure measurement return bend, pressure measurement return bend bottom is equipped with pressure-measuring pipe II, the fan center is equipped with the pipeline center, the pipeline center outside is equipped with pitot tube amount of wind pressure tester I.
Preferably, the fan is connected with the air quantity control valve through a soft joint.
Preferably, the cross section centers of the pressure measuring pipe I and the fan are located on the same horizontal straight line.
Preferably, the pressure measuring pipe I and the pressure measuring pipe II are connected through a pressure measuring bent pipe.
Preferably, a pitot tube air volume and air pressure tester II is installed at the outlet of the pressure measuring pipe II.
Preferably, the pitot tube air volume and air pressure tester I is arranged at an inlet of the pressure measuring pipe I.
The utility model discloses a technological effect and advantage: the resistance performance testing device for the ventilation elbow pipeline effectively calculates the wind pressure resistance performance of the elbow ventilation pipeline, is simple to operate and convenient to test, and aims to solve the problem of the wind pressure resistance performance of the elbow of the ventilation pipeline and verify the design under the condition that the traditional pressure drop test for testing the ventilation pipeline cannot test the wind pressure of the elbow.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic view of the connection between the fan and the air duct of the present invention.
In the figure: the device comprises an air volume adjusting valve 1, an air blower 2, a soft joint 3, an air volume control valve 4, a pressure measuring pipe I, a pressure measuring pipe 6, a test bent pipe 5, a pressure measuring pipe II, a pitot tube air volume and air pressure tester I, a pitot tube air volume and air pressure tester 9, and a pipeline center.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a ventilation elbow pipeline resistance capability test device as shown in figure 1, figure 2, include
Air regulation valve 1, air regulation valve 1 right side is connected with fan 2, 2 right sides of fan are connected with soft joint 3, 3 right sides of soft joint are connected with air quantity control valve 4, 4 right sides of air quantity control valve are equipped with pressure-measuring pipe I5, pressure-measuring pipe I5 right side is equipped with pressure-measuring return bend 6, 6 bottoms of pressure-measuring return bend are equipped with pressure-measuring pipe II 7, fan 2 center is equipped with pipeline center 9, the pipeline center 9 outside is equipped with pitot tube amount of wind pressure tester I8.
Specifically, the fan 2 is connected with the air volume control valve 4 through a soft joint 3.
Specifically, the cross section centers of the pressure measuring pipe I5 and the fan 2 are positioned on the same horizontal straight line.
Specifically, the pressure measuring pipe I5 and the pressure measuring pipe II 7 are connected through a pressure measuring bent pipe 6.
Specifically, a pitot tube air volume and air pressure tester II is installed at the outlet of the pressure measuring pipe II 7.
Specifically, pitot tube amount of wind pressure tester I8 is installed in pressure-measuring pipe I5 import department.
The working principle is as follows: this ventilation elbow pipeline resistance capability test device is in the use, is connected fan 2 with the tuber pipe, has adorned equipment such as pressure-measuring pipe I5, pressure-measuring return bend 6 and pressure-measuring pipe II 7 simultaneously, and fan 2's range and precision are 0-14 grades, and the measuring amount of wind equipment chooses for use DP3000 intelligent wind speed wind pressure air gauge, pressure range: 9999Pa to 9999Pa, and the precision is 1Pa; wind speed range 0.1-130m/s, precision: 0.01m/s, install pitot tube amount of wind pressure tester I8 on pressure-measuring pipe I5 import simultaneously, test ambient temperature and atmospheric pressure start fan 2, adjust converter frequency record amount of wind and wind pressure. And installing a pitot tube air quantity and air pressure tester at the outlet pressure measuring tube, adjusting the same air quantity, recording the air pressure, calculating the pressure drop, then adjusting the frequency of the frequency converter, repeating the steps after changing the air quantity, and recording the result. The pitot tube air quantity and air pressure testers at the inlet and the outlet simultaneously measure and collect test data, the sensors should measure air flow data of the central position of the pipeline, the pressure drop obtained by calculation forms a curve, and the curve is compared with a reference curve, and the test curve is qualified under the reference curve. Meanwhile, the tested pressure drop is compared with the value in the reference curve, and the value smaller than the reference value is qualified. It is checked before use. And recording the environmental temperature and the atmospheric pressure in the test result, testing the wind pressure of each air quantity for 3 times, taking an average value, finally converting the average value obtained in the test environment into an average value in a standard environment according to an ideal gas equation, and calculating a pressure drop forming curve.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.

Claims (6)

1. The utility model provides a ventilation elbow pipeline resistance capability test device which characterized in that: comprises that
Air regulation valve (1), air regulation valve (1) right side is connected with fan (2), fan (2) right side is connected with soft joint (3), soft joint (3) right side is connected with air quantity control valve (4), air quantity control valve (4) right side is equipped with pressure-measuring pipe I (5), pressure-measuring pipe I (5) right side is equipped with pressure measurement return bend (6), pressure measurement return bend (6) bottom is equipped with pressure-measuring pipe II (7), fan (2) center is equipped with pipeline center (9), the pipeline center (9) outside is equipped with pitot tube amount of wind pressure tester I (8).
2. The resistance performance testing device for the ventilation elbow pipeline as claimed in claim 1, wherein: the fan (2) is connected with the air volume control valve (4) through a soft joint (3).
3. The resistance performance testing device for the ventilation elbow pipeline as claimed in claim 1, wherein: the cross section centers of the pressure measuring pipe I (5) and the fan (2) are positioned on the same horizontal straight line.
4. The resistance performance testing device for the ventilation elbow pipeline as claimed in claim 1, wherein: and the pressure measuring pipe I (5) is connected with the pressure measuring pipe II (7) through a pressure measuring bent pipe (6).
5. The resistance performance testing device for the ventilation elbow pipeline as claimed in claim 1, wherein: and a pitot tube air quantity and air pressure tester II is installed at the outlet of the piezometric tube II (7).
6. The resistance performance testing device for the ventilation elbow pipeline as claimed in claim 1, wherein: and the pitot tube air quantity and air pressure tester I (8) is arranged at an inlet of the pressure measuring tube I (5).
CN202221907866.7U 2022-07-21 2022-07-21 Resistance performance testing device for ventilation elbow pipeline Active CN218066960U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221907866.7U CN218066960U (en) 2022-07-21 2022-07-21 Resistance performance testing device for ventilation elbow pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221907866.7U CN218066960U (en) 2022-07-21 2022-07-21 Resistance performance testing device for ventilation elbow pipeline

Publications (1)

Publication Number Publication Date
CN218066960U true CN218066960U (en) 2022-12-16

Family

ID=84399728

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221907866.7U Active CN218066960U (en) 2022-07-21 2022-07-21 Resistance performance testing device for ventilation elbow pipeline

Country Status (1)

Country Link
CN (1) CN218066960U (en)

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GR01 Patent grant
GR01 Patent grant
CB03 Change of inventor or designer information

Inventor after: Ni Minliang

Inventor after: Bao Liuhua

Inventor after: Wang Yongchun

Inventor after: Zeng Yi

Inventor after: Fang Simin

Inventor after: Zhong Zhongtang

Inventor before: Ni Minliang

Inventor before: Bao Liuhua

Inventor before: Wang Yongchun

Inventor before: Zeng Yini

Inventor before: Fang Simin

Inventor before: Zhong Zhongtang

CB03 Change of inventor or designer information