CN105466510B - Orifice metre with linear resistance adjuster - Google Patents
Orifice metre with linear resistance adjuster Download PDFInfo
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- CN105466510B CN105466510B CN201510964943.0A CN201510964943A CN105466510B CN 105466510 B CN105466510 B CN 105466510B CN 201510964943 A CN201510964943 A CN 201510964943A CN 105466510 B CN105466510 B CN 105466510B
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- linear
- plate
- aperture
- casing
- linear resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/001—Means for regulating or setting the meter for a predetermined quantity
- G01F15/002—Means for regulating or setting the meter for a predetermined quantity for gases
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a kind of orifice metres with linear resistance adjuster, dragulator, aperture component and flowmeter host including realizing vapour lock linear regulation；The linear resistance adjuster solves the problems, such as that negative pressure regulating valve is difficult to realize resistance linear regulation, port is provided on two plates up and down of adjuster, with the linear change of two plate relative rotation angles, vapour lock is generated between two plates to change linearly, it is pushed by operating stick and adjusts ring rotation, it adjusts ring and drives upper plate to rotate relative to lower plate by magnet steel, to realize vapour lock linear change, the calibrating of the fluctuation range and regulation performance of atmosphere equipment thief hatch flow under different vapour lock environment can be realized.In addition, organically combining dragulator in orifice metre, two functions of traffic alignment and Flow Adjusting Performance calibrating are completed at the same time, reduce the instrument quantity of atmosphere class equipment calibrating link.The inventive structure is simple, and production cost is low, and installation maintenance is convenient, carries and easy to operate.
Description
Technical field
The present invention relates to the orifice metres of the measurement of gas flow, more particularly to one kind to be suitable for the flow measurement of atmosphere equipment
And have linear resistance regulatory function concurrently orifice flow metering device, belong to atmosphere equipment Calibration Technology field.
Background technique
Currently, the orifice metre for the flow measurement of atmosphere class equipment, calibration, calibration, calibrating, due to its carrying side
Face, simple installation calibrate the advantages such as direct and are widely used in the samplers such as environmental protection industry (epi) dust, TSP, PM10, PM2.5 and ring
Border monitors the fields such as the flow verification of atmosphere class sampler in field.
Because of the direct reaction environment pollution index of the monitoring result of the equipment such as atmosphere class sampler, pretend as sampler upper level
Flow verification calibration instrument, the accuracy and calibration method of orifice metre are most important, it will directly affect environmental monitoring
The accuracy and reliability of index.
In the verification process of the thief hatch speed of evacuation and precision for carrying out atmosphere class equipment, carried out using orifice metre
The assay calibration of flow, meanwhile, a negative pressure regulating valve is also needed, for adjusting different vapour lock values, to simulate different negative
Under the conditions of lotus, the fluctuation range and regulation performance of the thief hatch speed of evacuation are examined and determine.
However, it is connected to the negative pressure regulating valve that air resistance regulatory function is carried out between orifice metre and atmosphere equipment,
Generally existing air resistance linear regulation is difficult, structure is complicated, high production cost, maintenance of equipment expense are high, bulky and pacify
The problems such as dress is inconvenient.For solve the problems, such as air resistance can linear regulation, a kind of patent (CN 1176373C) " resistance tune
Section device " propose a kind of linear air resistance regulating device, it can be achieved that resistance is continuous, equably adjusts, but manufactures difficult processing,
Installation is inconvenient, and sealing structure is difficult.
It is therefore proposed that a kind of structure it is simple, convenient for manufacture, easy for installation and linear adjustable air resistance adjuster, use
It is most important in the calibration operation of atmosphere class equipment.Separately linear resistance adjuster and orifice metre are organically combined, while complete
At two functions that traffic alignment and Flow Adjusting Performance are examined and determine, the instrument quantity of atmosphere class equipment calibrating link is reduced, is reduced
The Connection Step of detecting instrument and the air-leakage test number of each tie point when examining and determine atmosphere class equipment effectively improve work effect
Rate.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of linear air resistance adjuster, the companies of realization
The vapour lock of continuous linear change, thus the fluctuation range and tune of calibrating atmosphere equipment thief hatch speed of evacuation under different vapour lock environment
Save performance；And organically combine dragulator in orifice metre, in the flow measurement function base for keeping orifice metre
On plinth, increase linear air resistance regulating device, adequately judges stream of the atmosphere equipment in any change condition of vapour lock
Regulation performance is measured, the accuracy of atmosphere equipment performance evaluation is improved；The flowmeter can be used for the flow of multi-field gas apparatus
In the work of measurement, calibration, calibration, calibrating and Flow Adjusting Performance analysis, reduce the instrument of atmosphere class equipment calibrating link
Device quantity, the Connection Step of detecting instrument and the air-leakage test number of each tie point, carry when reducing calibrating atmosphere class equipment
More convenient, acquisition data are accurate.
Purpose to realize the present invention, the present invention is achieved by the following scheme:
A kind of orifice metre with linear resistance adjuster, including mechanical part and flowmeter host；The Machinery Ministry
Part includes aperture component and the linear resistance adjuster for adjusting gas flow；The aperture component is by one end connection atmosphere
Aperture, the pressure pipe of aperture lower part and the pressure tappings composition on pressure pipe, and junction is realized using sealing ring, adhesive means
Sealing, aperture connect with lower part pressure pipe by screw thread, adhesive means, passes through screw thread and gluing between pressure tappings and pressure pipe
Mode connects；The pressure tappings of aperture component are connected by hose with the air inlet of flowmeter host.
Further, the linear resistance adjuster connects atmosphere equipment thief hatch by the upper casing of connection aperture component
Lower casing, the lower plate being fixed in upper casing, the upper plate being mounted on above lower plate covers the adjusting ring with operating stick outside upper casing
Composition；Lower plate is fastened in upper casing by lower plate locating piece, and upper plate lower surface is fitted closely with lower plate upper surface, while on
Plate can be rotated around lower plate axle center, will be installed and connected between two plates by magnet steel method, and upper plate and lower plate are the plate with through-hole,
With the linear change of upper and lower two plates relative rotation angle, the vapour lock value between two plates is also changed linearly, between upper casing and lower casing
It is connected through a screw thread, and realizes the sealing of junction by gasket, lower casing is connect with thief hatch by connecting tube, and by close
The sealing of junction is realized in seal, guarantees the leakproofness of junction, and covering the adjusting ring outside upper casing can rotate around upper casing, is pushed
The operating stick on ring is adjusted, the rotation angle of ring is controlled to adjust, the magnet steel on upper plate is sucked in shell in the magnet steel adjusted on ring, drives
Upper plate rotates jointly equal angular, realizes that two plates above and below in control shell are operated outside shell to be relatively rotated, and realizes the linear of air resistance
It adjusts.
Further, the flowmeter host, by hose by the air inlet on the pressure tappings and host on the component of aperture
It is connected, the gas flow at aperture is calculated by arithmetic system, flow value shows that host connects with charger by display screen
The DC power supply of mouth, electric quantity of power supply are shown on a display screen.
Further, limit plate is installed on the upper casing of the linear resistance adjuster, to limit the tune of dragulator
Save ring axial float.
The advantages of orifice metre of the present invention with linear resistance adjuster, is:
1, dragulator can realize air resistance linear regulation；
2, scale value and adjustable range are indicated outside dragulator on adjustment disk, air resistance adjusts easy to operate, straight
It sees；
3, orifice metre and dragulator organically combine, and realize the atmosphere equipment gas under air resistance contingent condition
The calibrating of body flow and regulation performance；
4, flowmeter host uses high-precision differential pressure pick-up, singlechip technology, and measurement is quickly, accurately；
5, orifice metre has the energy of detection atmospheric pressure, ambient temperature and humidity, operating condition flow, mark condition flow, orifice differential
Power.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the orifice metre overall structure diagram with linear resistance adjuster.
Fig. 2 is the structure and scheme of installation of the aperture component in Fig. 1.
Fig. 3 is the perspective view of the explosion of the linear resistance adjuster in Fig. 1.
Fig. 4 is the diagrammatic cross-section of the linear resistance adjuster in Fig. 1.
In figure: 1- mechanical part；2- flowmeter host；The aperture 11- component；12- linear resistance adjuster；13- filter membrane group
Part；101- hose；102- connecting tube；103- sealing ring；104- gasket；The aperture 111-；112- pressure pipe；113- pressure tappings；
121- adjusts ring；122- operating stick；123- magnet steel；124- upper plate；125- lower plate；126- lower plate locating piece；127- upper casing；128-
Lower casing；129- limit plate；201- air inlet；202- display screen.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment:
It as shown in Figure 1, Figure 2, Figure 3 and Figure 4, is a kind of implementation of the orifice metre of the invention with linear resistance adjuster
Example, the mechanical part 1 and signal which is mainly combined by aperture component 11 and linear resistance adjuster 12 receive, data meter
The flowmeter host 2 for calculating storage display forms.
As shown in Fig. 2, aperture component 11 is made of aperture 111, pressure pipe 112 and pressure tappings 113, aperture 111 with take
Pressure pipe 112 is connected by way of gluing, and pressure tappings 113 are connected through a screw thread with pressure pipe 112, and realizes connection using gluing
The sealing at place.
As shown in Figure 3 and Figure 4, linear resistance adjuster 12 by adjusting ring 121, operating stick 122, magnet steel 123, upper plate 124,
Lower plate 125, lower plate locating piece 126, upper casing 127, lower casing 128, limit plate 129 form, and upper casing 127 and pressure pipe 112 pass through spiral shell
Line connection, and by the sealing of the realization of sealing ring 103 junction, upper plate 124 is connect with lower plate 125 by magnet steel 123, lower plate
125 are fixed in upper casing 127 by the threaded connection of lower plate locating piece 126, are connected between upper casing 127 and lower casing 128 by screw thread
It connects, and realizes the sealing of junction by gasket 104, filter membrane component is installed between lower plate locating piece 126 and lower casing 128
13,121 sets of ring are adjusted on upper casing 127, and operating stick 122 is fixed on by gluing and is adjusted on ring 121, and 129 sets of limit plate upper
At the shaft shoulder of shell 127, limitation adjusts ring 121 in the axial float of upper casing 127, and lower casing 128 is connected with thief hatch by connecting tube 102
It connects, and realizes the sealing of junction by sealing ring 103.
The air inlet 201 of flowmeter host 2 is connected to the pressure tappings 113 of aperture component 11 by hose 101.
Application method:
Operating stick 122 is pushed, drives and adjusts the rotation of ring 121, the magnetic on upper plate 124 is sucked in the magnet steel 123 adjusted on ring 121
Steel 123 drives upper plate 124 to rotate jointly equal angular, makes to relatively rotate between upper plate 124 and lower plate 125, gas between two plates
Passable area changes, and is rotated at required resistance value position, can be examined and determine according to the vapour lock scale value adjusted on ring 121
Whether the fluctuation range of the thief hatch speed of evacuation of atmosphere equipment and regulation performance comply with standard when this vapor lock condition, while flow
Information at air inlet 201 is accurately calculated the gas flow at aperture 111 by sensor and computing circuit by meter host 2, and
It is shown by display screen 202, assay calibration is carried out to the flow of atmosphere equipment.
Vapour lock linear continuous variation can be obtained in linear rotating adjustment ring 121, realizes all vapour lock items within the scope of vapour lock
The calibrating of atmosphere equipment flowed fluctuation range and regulation performance under part.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, the art
Those of ordinary skill, within the essential scope of the present invention, the variations, modifications, additions or substitutions made all should belong to the present invention
Protection scope.
Claims (3)
1. the orifice metre with linear resistance adjuster, it is characterised in that: including mechanical part (1), flowmeter host (2)；
The mechanical part (1) includes aperture component (11) and the linear resistance adjuster (12) for adjusting gas flow；The hole
Mouth component (11) is by the aperture (111) of one end connection atmosphere, the pressure pipe (112) and pressure pipe (112) of aperture (111) lower part
On pressure tappings (113) composition, and realize using sealing ring (103) sealing of junction, aperture (111) and lower part pressure pipe
(112) it is connected by screw thread or adhesive means, is connected between pressure tappings (113) and pressure pipe (112) by screw thread and adhesive means
It connects；The pressure tappings (113) of aperture component (11) pass through the connection of the air inlet (201) of hose (101) and flowmeter host (2)；
The linear resistance adjuster (12) connects atmosphere equipment thief hatch by the upper casing (127) of connection aperture component (11)
Lower casing (128), the lower plate (125) being fixed in upper casing (127) is mounted on the upper plate (124) of lower plate (125) above, covers
Adjusting ring (121) composition with operating stick (122) of upper casing (127) outside；Lower plate (125) is connected by lower plate locating piece (126)
It connects and is fixed in upper casing (127), upper plate (124) lower surface is fitted closely with lower plate (125) upper surface, while upper plate (124) can
It is rotated around lower plate (125) axle center, will be installed and connected between two plates by magnet steel (123), upper plate (124) and lower plate (125) are
Plate with through-hole, with the linear change of upper and lower two plates relative rotation angle, the vapour lock value between two plates is also changed linearly, on
Connect between shell (127) and lower casing (128) by sealing ring, engagement thread, it is ensured that the leakproofness of junction, lower casing (128) with
Thief hatch is connected by connecting tube (102), and the sealing of junction is realized by sealing ring (103), guarantees the sealing of junction
Property, while filter membrane component (13) can be installed between lower plate locating piece (126) and lower casing (128), it covers external in upper casing (127)
Adjusting ring (121) can be rotated around upper casing (127), push adjust ring (121) on operating stick (122), control to adjust ring (121)
Rotation angle, the magnet steel (123) adjusted on ring (121) is sucked the magnet steel (123) on upper plate in shell (124), drives upper plate
(124) equal angular is rotated jointly, realizes that operating two plates above and below in control shell outside shell relatively rotates, and realizes the linear of air resistance
It adjusts.
2. the orifice metre according to claim 1 with linear resistance adjuster, it is characterised in that: the flowmeter master
Pressure tappings (113) on aperture component (11) are connected by machine (2) by hose (101) with the air inlet (201) on host (2)
It connects, the gas flow at aperture (111) is calculated by arithmetic system, flow value is shown by display screen (202), and host, which has, to be filled
The DC power supply of electrical apparatus interface, electric quantity of power supply are shown on display screen (202).
3. the orifice metre according to claim 1 with linear resistance adjuster, it is characterised in that: the linear resistance
Limit plate (129) are installed on the upper casing (127) of adjuster (12), are axially altered with limiting the adjusting ring (121) of dragulator
It is dynamic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964943.0A CN105466510B (en) | 2015-12-17 | 2015-12-17 | Orifice metre with linear resistance adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964943.0A CN105466510B (en) | 2015-12-17 | 2015-12-17 | Orifice metre with linear resistance adjuster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105466510A CN105466510A (en) | 2016-04-06 |
| CN105466510B true CN105466510B (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510964943.0A Active CN105466510B (en) | 2015-12-17 | 2015-12-17 | Orifice metre with linear resistance adjuster |
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| Country | Link |
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| CN (1) | CN105466510B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852759A (en) * | 2019-04-29 | 2020-10-30 | 甘肃慧风节能有限公司 | Airflow flow adjusting device and power generation device |
| CN114001805B (en) * | 2021-11-22 | 2023-11-03 | 金华市弘驰科技有限公司 | Automatic pressure sensor adjusting equipment and adjusting method |
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| CN1417579A (en) * | 2001-11-09 | 2003-05-14 | 中国科学院大连化学物理研究所 | Resistance regulator |
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| CN201795815U (en) * | 2010-08-25 | 2011-04-13 | 刘琨 | Anti-blocking type low-speed pipe flow meter |
| CN104121951A (en) * | 2014-08-11 | 2014-10-29 | 深圳国技仪器有限公司 | Multifunctional air resistance piece |
| CN204177634U (en) * | 2014-10-24 | 2015-02-25 | 青岛海纳光电环保有限公司 | Overall suspended pellet sampling thief load resistance regulating device |
| CN104865150A (en) * | 2015-04-23 | 2015-08-26 | 云南方源科技有限公司 | Method for detection of dust content in air |
-
2015
- 2015-12-17 CN CN201510964943.0A patent/CN105466510B/en active Active
Patent Citations (8)
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|---|---|---|---|---|
| CN1417579A (en) * | 2001-11-09 | 2003-05-14 | 中国科学院大连化学物理研究所 | Resistance regulator |
| CN201034649Y (en) * | 2007-04-20 | 2008-03-12 | 项家从 | Semi-ring voltage equalizing type flange pressure sampling stephanoporate hole plate flow rate sensor |
| CN201508286U (en) * | 2009-04-21 | 2010-06-16 | 青岛崂山电子仪器总厂有限公司 | Air particulate matter sampling device |
| CN201488757U (en) * | 2009-08-27 | 2010-05-26 | 岑慕初 | Dry type direct reading base table with anti-blocking high sensitive rotor |
| CN201795815U (en) * | 2010-08-25 | 2011-04-13 | 刘琨 | Anti-blocking type low-speed pipe flow meter |
| CN104121951A (en) * | 2014-08-11 | 2014-10-29 | 深圳国技仪器有限公司 | Multifunctional air resistance piece |
| CN204177634U (en) * | 2014-10-24 | 2015-02-25 | 青岛海纳光电环保有限公司 | Overall suspended pellet sampling thief load resistance regulating device |
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Non-Patent Citations (1)
| Title |
|---|
| 智能孔口流量计校准方法研究;赵宁 等;《河北大学学报》;20151013(第05期);第546页最后一段、第547页第1.1节，附图1、2 |
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| CN105466510A (en) | 2016-04-06 |
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