CN201527286U - Porous rectifier type throttling component - Google Patents

Porous rectifier type throttling component Download PDF

Info

Publication number
CN201527286U
CN201527286U CN2009203154491U CN200920315449U CN201527286U CN 201527286 U CN201527286 U CN 201527286U CN 2009203154491 U CN2009203154491 U CN 2009203154491U CN 200920315449 U CN200920315449 U CN 200920315449U CN 201527286 U CN201527286 U CN 201527286U
Authority
CN
China
Prior art keywords
hole
holes
small
throttling component
porous
Prior art date
Application number
CN2009203154491U
Other languages
Chinese (zh)
Inventor
童复来
刘德宇
Original Assignee
天津市润泰自动化仪表有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 天津市润泰自动化仪表有限公司 filed Critical 天津市润泰自动化仪表有限公司
Priority to CN2009203154491U priority Critical patent/CN201527286U/en
Application granted granted Critical
Publication of CN201527286U publication Critical patent/CN201527286U/en

Links

Abstract

The utility model relates to a porous rectifier type throttling component which comprises a circular plate and through holes manufactured on the circular plate and is characterized in that the through holes manufactured on the circular plate consist of big through holes and small through holes; and the big through holes are symmetrically and uniformly arranged in radial direction, and the small through holes are symmetrically and uniformly arranged around the circumferential direction. The throttling component adopts uniformly distributed porous combined structure, can effectively eliminate the influence of fluid fluctuation in a pipeline on the measurement precision, greatly shortens the length of the straight pipe section at the front end of the throttling component, has small compression loss, high flow measurement precision, low medium noise and convenient installation and maintenance, is widely applied to the flow measurement of industries such as metallurgy, electrical power, chemical industry, textiles, light industry and the like.

Description

Porous rectifier type throttling element
Technical field
The utility model belongs to the flow measurement technology field, relates to flowmeter, especially a kind of porous rectifier type throttling element.
Background technology
Flowmeter is the measurement of fluid flow instrument: comprise throttling element, pressure obtaning device, differential pressure transmitter, Displaying Meter (also can directly connect computer system), its principle of work is: when fluid is flowed through throttling element, rate of flow of fluid is accelerated, thereby static pressure reduces, before and after throttling element, produce a differential static pressure, by measurement, realize the measurement of fluid flow to differential pressure.At present, the employed throttling element of flowmeter is that a plectane is installed in pressure obtaning device, is shaped on a circular hole in the middle of this plectane, and this plectane with holes is called " orifice plate " in the flow instrument industry, and the manufacturing of orifice plate all has national standard and international standard now.By measuring the differential pressure measurement flow of these orifice plate front and back.The shortcoming of this orifice plate throttling element is: 1, owing to be single hole, the media flow resistance is bigger, and media noise is higher, and the pressure loss is bigger.2, in order to eliminate pipeline inner fluid fluctuation influence to measuring accuracy, the throttling element front end need the length of straight length be internal diameter of the pipeline 30-50 doubly, cause the flowmeter pipeline longer, usable range is subjected to very big restriction.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides that a kind of simple in structure, design science, measuring accuracy height, required straight length are short, the porous rectifier type throttling element of applied range.
The utility model solves its technical matters and is achieved through the following technical solutions:
A kind of porous rectifier type throttling element, by plectane and on plectane made through hole constitute, it is characterized in that: the made through hole of plectane is made of large through-hole and small through hole, large through-hole is the uniform setting of radial symmetry, small through hole is arranged on large through-hole periphery and symmetrical uniform setting.
And the made large through-hole of described plectane radial symmetry is six to ten, and small through hole is four to eight; Small through hole is 1 with the diameter ratio of large through-hole: 1.3-2.1.
And the rear end of described large through-hole and small through hole all is shaped on cone angle, and the angle of this cone angle is 40-50 °.
Advantage of the present utility model and beneficial effect are:
1, this throttling element adopts uniform porous unitized construction, can effectively eliminate the influence of pipeline inner fluid fluctuation to measuring accuracy, shortens the length of throttling element front end straight length greatly; By experiment, the length of the required straight length of this throttling element is 5~10 times of internal diameter of the pipeline to the maximum, has also improved the anti-dirty performance of instrument simultaneously, and has been difficult for stopping up.
2, the porous structure of this throttling element, crushing is little, flow measurement precision height, media noise is low, and the signal of transmission is more stable.
3, the utility model is particularly suitable for the fluid measurement that on-the-spot straight length is short, medium is dirtier, flow velocity is lower, simultaneously because it is simple in structure, convenient for installation and maintenance, therefore can be widely used in the flow measurement of industry such as metallurgy, electric power, chemical industry, weaving, light industry.
Description of drawings
Fig. 1 is a structural front view of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to the structure cut-open view;
Fig. 3 is the structural front view of the utility model embodiment 2.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
Embodiment 1, referring to Fig. 1, Fig. 2.
A kind of porous rectifier type throttling element, by plectane 1 and on plectane made through hole constitute.Through hole in the present embodiment is made of large through-hole 3 and small through hole 2, and large through-hole is symmetrical uniform setting with one heart, and quantity is six to ten, and present embodiment is eight; Small through hole is uniform to be arranged between the large through-hole periphery with one heart, and quantity is four to eight, and present embodiment is four.Small through hole is 1 with the diameter ratio of large through-hole: 1.3-2.1.In order to reduce crushing, obtain the higher pressure reduction of precision, the rear end of throttling element large through-hole and small through hole all is shaped on cone angle, and the angle of this cone angle is 40-50 °.
Embodiment 2, referring to Fig. 3.
The difference of itself and embodiment 1 is that large through-hole 4 is the radial symmetry setting, and present embodiment is ten large through-holes; Small through hole 5 is for being symmetricly set on the large through-hole both sides of symmetry, and quantity is four.
Other are same as embodiment 1.

Claims (3)

1. porous rectifier type throttling element, by plectane and on plectane made through hole constitute, it is characterized in that: the made through hole of plectane is made of large through-hole and small through hole, and large through-hole is the uniform setting of radial symmetry, and small through hole is arranged on large through-hole periphery and symmetrical uniform setting.
2. porous rectifier type throttling element according to claim 1 is characterized in that: the made large through-hole of described plectane radial symmetry is six to ten, and small through hole is four to eight; Small through hole is 1 with the diameter ratio of large through-hole: 1.3-2.1.
3. porous rectifier type throttling element according to claim 1 and 2, it is characterized in that: the rear end of described large through-hole and small through hole all is shaped on cone angle, and the angle of this cone angle is 40-50 °.
CN2009203154491U 2009-11-23 2009-11-23 Porous rectifier type throttling component CN201527286U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009203154491U CN201527286U (en) 2009-11-23 2009-11-23 Porous rectifier type throttling component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009203154491U CN201527286U (en) 2009-11-23 2009-11-23 Porous rectifier type throttling component

Publications (1)

Publication Number Publication Date
CN201527286U true CN201527286U (en) 2010-07-14

Family

ID=42518571

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009203154491U CN201527286U (en) 2009-11-23 2009-11-23 Porous rectifier type throttling component

Country Status (1)

Country Link
CN (1) CN201527286U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102645411A (en) * 2011-02-22 2012-08-22 贺明志 Ozone sensor
CN103115042A (en) * 2013-02-18 2013-05-22 西安拓普电气有限责任公司 Airflow rectifier
CN103452969A (en) * 2013-08-19 2013-12-18 无锡杰尔压缩机有限公司 Porous rectifying device with pressure reduction function
CN103573759A (en) * 2013-11-12 2014-02-12 无锡杰尔压缩机有限公司 Throttling and pressure reduction combined device of triangular hole throttling valve
CN104482615A (en) * 2014-12-30 2015-04-01 天津正本自控系统有限公司 Optical sterilization device installation structure for air purifier
CN107478284A (en) * 2017-08-30 2017-12-15 华南理工大学 A kind of new isometrical multi-hole orifice adjuster
CN108931270A (en) * 2018-09-05 2018-12-04 河北大学 Diphasic stream parameter detection method based on porous restriction and acoustic emission

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102645411A (en) * 2011-02-22 2012-08-22 贺明志 Ozone sensor
CN103115042A (en) * 2013-02-18 2013-05-22 西安拓普电气有限责任公司 Airflow rectifier
CN103452969A (en) * 2013-08-19 2013-12-18 无锡杰尔压缩机有限公司 Porous rectifying device with pressure reduction function
CN103573759A (en) * 2013-11-12 2014-02-12 无锡杰尔压缩机有限公司 Throttling and pressure reduction combined device of triangular hole throttling valve
CN104482615A (en) * 2014-12-30 2015-04-01 天津正本自控系统有限公司 Optical sterilization device installation structure for air purifier
CN107478284A (en) * 2017-08-30 2017-12-15 华南理工大学 A kind of new isometrical multi-hole orifice adjuster
CN108931270A (en) * 2018-09-05 2018-12-04 河北大学 Diphasic stream parameter detection method based on porous restriction and acoustic emission
CN108931270B (en) * 2018-09-05 2020-12-01 河北大学 Two-phase flow parameter detection method based on porous throttling and acoustic emission technology

Similar Documents

Publication Publication Date Title
CN100595524C (en) Flow sensor
CN105716779A (en) Dynamic pressure blade type probe
US20060053902A1 (en) Devices, installations and methods for improved fluid flow measurement in a conduit
CN203477388U (en) Flow-adjustable current-limiting orifice plate
CN206422208U (en) A kind of chamber power divider
CN201034650Y (en) Semi-ring voltage equalizing type ring casing pressure sampling stephanoporate shaped hole plate flow rate sensor
CN201034649Y (en) Semi-ring voltage equalizing type flange pressure sampling stephanoporate hole plate flow rate sensor
CN105974153B (en) A kind of intelligent pipeline stream monitor based on piezoelectric beam
CN203477909U (en) Pipeline leakage automatic monitoring positioning device based on low-frequency sound waves and negative-pressure waves
CN109579928A (en) A kind of hot type micro-flow measurement sensor flow passage and sealing structure
CN102538882A (en) Flowmeter sensor based on electromagnetic correlation method
Peng et al. Experimental investigations of Strouhal number for flows past dual triangulate bluff bodies
CN102411062A (en) Gas-liquid two-phase flow velocity and gas content sensor
CN208805237U (en) A kind of double vortex street sensor fluid measurement instruments of shock type
CN203479342U (en) Gas flowmeter
CN205506129U (en) Multichannel square needle tubing flow measuring device
CN107179105A (en) Flow measurement device
CN203732108U (en) Ultrasonic water meter pipeline structure with high stability and small initial motion
CN201697644U (en) Integrated differential pressure flowmeter
CN204945097U (en) For the waveguide rod of acoustic emission detection
CN201707077U (en) Balance flow meter
CN201476819U (en) Balanced-type V-shaped cone flow meter
CN201615818U (en) Leak detector for flange
CN2935097Y (en) Slotted orifice plate for multiphase metering device
CN105953849A (en) Natural gas flow measurer

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100714

Termination date: 20141123