CN104019862A - Rotary ruler for gas orifice plate flowmeter - Google Patents
Rotary ruler for gas orifice plate flowmeter Download PDFInfo
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- CN104019862A CN104019862A CN201410189247.2A CN201410189247A CN104019862A CN 104019862 A CN104019862 A CN 104019862A CN 201410189247 A CN201410189247 A CN 201410189247A CN 104019862 A CN104019862 A CN 104019862A
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- scale
- locating sleeve
- minor axis
- handle
- gib screw
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Abstract
The invention belongs to the gas flow measurement technology and relates to the improvement of a ruler for a gas orifice plate flowmeter. A rotary ruler for the gas orifice plate flowmeter comprises a communicating pipe component (1) and an installation support (3) and is characterized by further comprising a rotary ruler body which is composed of a handle (4), a rotary ruler fixing screw (5), an upper positioning sleeve (6), a rotary base body (7), a ruler part (8), a ruler part fixing screw (9), a lower positioning sleeve (10), a handle fixing screw (11) and a washer (12). According to the improved rotary ruler for the gas orifice plate flowmeter, ruler switching is facilitated greatly, switching processes are simplified, measurement efficiency is improved, and measurement errors are reduced.
Description
Technical field
The invention belongs to gas flow measurement technology, relate to the improvement to gas orifice flowmeter scale.
Background technology
The structure of current gas orifice flowmeter scale is referring to Fig. 1, it by communicating pipe assembly 1, scale 2 and mounting bracket 3 form, communicating pipe assembly 1 and scale 2 be fixed by screws on mounting bracket 3.Display tube in communicating pipe assembly 1 and scale 2 are all in plumbness.In the time that fluid column appears in display tube, read the flow value being become by the height conversion of fluid column by the scale of scale 2.Its shortcoming is: in the time that the metering hole of gas orifice flowmeter is changed according to the size of institute's measurement of discharge, scale 2 also will be replaced with corresponding scale thereupon.Cause complex operation, setup time increases, and measures decrease in efficiency.Meanwhile, changing scale can cause measuring error to increase.
Summary of the invention
The object of the invention is: propose a kind of rotation scale of improved gas orifice flowmeter, to facilitate the conversion of scale, simplify conversion operations step, improve and measure efficiency, reduce measuring error.
Technical scheme of the present invention is: for the rotation scale of gas orifice flowmeter, comprise communicating pipe assembly 1 and mounting bracket 3, communicating pipe assembly 1 be fixed by screws on mounting bracket 3, it is characterized in that: have a rotation scale being fixed on mounting bracket 3, it is made up of handle 4, rotation scale gib screw 5, upper locating sleeve 6, rotary substrate 7, scale 8, scale gib screw 9, lower locating sleeve 10, handle gib screw 11 and packing ring 12, upper locating sleeve 6 is annulus, upper locating sleeve 6 is fixed on the top of mounting bracket 3 by rotation scale gib screw 5, near the position of communicating pipe assembly 1 upper end, it is vertical and parallel with the axis of display tube in communicating pipe assembly 1 that the axis of upper locating sleeve 6 keeps, lower locating sleeve 10 is also an annulus, lower locating sleeve 10 is fixed on the bottom of mounting bracket 3 by rotation scale gib screw 5, near the position of communicating pipe assembly 1 lower end, the center pit of lower locating sleeve 10 is coaxial with the center pit of upper locating sleeve 6, rotary substrate 7 is divided into three sections from top to bottom, epimere is upper minor axis, stage casing is that cross section is the prism of regular polygon, hypomere is lower minor axis, upper minor axis from bottom to top through the center pit of upper locating sleeve 6 laggard enter the center stepped hole of handle 4, on the upper surface of upper minor axis, there is central blind hole, by handle gib screw 11 and packing ring 12, handle 4 and upper minor axis are connected to entirety, the center pit clearance fit of the external diameter of upper minor axis and upper locating sleeve 6, lower minor axis passes from the top down the center pit of lower locating sleeve 10 and keeps clearance fit, rotary substrate 7 stage casing prisms are extremely positive ten prisms of regular triangular prism, on each side of rotary substrate 7 stage casing prisms, fix a scale 8 by scale gib screw 9, and the scale of each scale 8 is corresponding with the aperture of a metering hole of gas orifice flowmeter.
Advantage of the present invention is: proposed a kind of rotation scale of improved gas orifice flowmeter, greatly facilitated the conversion of scale, simplified conversion operations step, improved measurement efficiency, reduced measuring error.
Brief description of the drawings
Fig. 1 is the structural representation of current a kind of gas orifice flowmeter scale.
Fig. 2 is structural representation of the present invention.
Embodiment
Below the present invention is described in further details.Referring to Fig. 2, for the rotation scale of gas orifice flowmeter, comprise communicating pipe assembly 1 and mounting bracket 3, communicating pipe assembly 1 be fixed by screws on mounting bracket 3, it is characterized in that: have a rotation scale being fixed on mounting bracket 3, it is made up of handle 4, rotation scale gib screw 5, upper locating sleeve 6, rotary substrate 7, scale 8, scale gib screw 9, lower locating sleeve 10, handle gib screw 11 and packing ring 12, upper locating sleeve 6 is annulus, upper locating sleeve 6 is fixed on the top of mounting bracket 3 by rotation scale gib screw 5, near the position of communicating pipe assembly 1 upper end, it is vertical and parallel with the axis of display tube in communicating pipe assembly 1 that the axis of upper locating sleeve 6 keeps, lower locating sleeve 10 is also an annulus, lower locating sleeve 10 is fixed on the bottom of mounting bracket 3 by rotation scale gib screw 5, near the position of communicating pipe assembly 1 lower end, the center pit of lower locating sleeve 10 is coaxial with the center pit of upper locating sleeve 6, rotary substrate 7 is divided into three sections from top to bottom, epimere is upper minor axis, stage casing is that cross section is the prism of regular polygon, hypomere is lower minor axis, upper minor axis from bottom to top through the center pit of upper locating sleeve 6 laggard enter the center stepped hole of handle 4, on the upper surface of upper minor axis, there is central blind hole, by handle gib screw 11 and packing ring 12, handle 4 and upper minor axis are connected to entirety, the center pit clearance fit of the external diameter of upper minor axis and upper locating sleeve 6, lower minor axis passes from the top down the center pit of lower locating sleeve 10 and keeps clearance fit, rotary substrate 7 stage casing prisms are extremely positive ten prisms of regular triangular prism, on each side of rotary substrate 7 stage casing prisms, fix a scale 8 by scale gib screw 9, and the scale of each scale 8 is corresponding with the aperture of a metering hole of gas orifice flowmeter.
Using method of the present invention is: produce corresponding scale 8 according to the aperture of the each metering hole of gas orifice flowmeter in advance, each scale 8 is corresponding with the metering hole of a special pore size distribution.The corresponding flow range of metering hole of certain pore size.When determining that according to the estimated value of measured flow after the metering hole adopting, rotary handle 4 makes corresponding scale 8 appear at display tube side, can start flow measurement.When conversion scale 8, only need rotary handle 4 to complete, greatly saved measurement setup time.Owing to need not dismantling scale 8, also avoid dismounting and installation to cause scale positioning error.
One embodiment of the present of invention, rotary substrate 7 stage casing prisms are positive seven prisms, on rotary substrate 7 stage casing prisms, are fixed with 7 scales 8, can change easily according to the metering hole of 7 different pore sizes.
Claims (1)
1. for the rotation scale of gas orifice flowmeter, comprise communicating pipe assembly (1) and mounting bracket (3), communicating pipe assembly (1) is fixed by screws on mounting bracket (3), it is characterized in that: have a rotation scale being fixed on mounting bracket (3), it is made up of handle (4), rotation scale gib screw (5), upper locating sleeve (6), rotary substrate (7), scale (8), scale gib screw (9), lower locating sleeve (10), handle gib screw (11) and packing ring (12), upper locating sleeve (6) is an annulus, upper locating sleeve (6) is fixed on the top of mounting bracket (3) by rotation scale gib screw (5), near the position of communicating pipe assembly (1) upper end, it is vertical and parallel with the axis of display tube in communicating pipe assembly (1) that the axis of upper locating sleeve (6) keeps, lower locating sleeve (10) is also an annulus, lower locating sleeve (10) is fixed on the bottom of mounting bracket (3) by rotation scale gib screw (5), near the position of communicating pipe assembly (1) lower end, the center pit of lower locating sleeve (10) is coaxial with the center pit of upper locating sleeve (6), rotary substrate (7) is divided into three sections from top to bottom, epimere is upper minor axis, stage casing is that cross section is the prism of regular polygon, hypomere is lower minor axis, upper minor axis from bottom to top through the center pit of upper locating sleeve (6) laggard enter the center stepped hole of handle (4), on the upper surface of upper minor axis, there is central blind hole, by handle gib screw (11) and packing ring (12), handle (4) and upper minor axis are connected to entirety, the center pit clearance fit of the external diameter of upper minor axis and upper locating sleeve (6), lower minor axis passes from the top down the center pit of lower locating sleeve (10) and keeps clearance fit, rotary substrate (7) stage casing prism is that regular triangular prism is to positive ten prisms, on each side of rotary substrate (7) stage casing prism, fix a scale (8) by scale gib screw (9), the aperture of a metering hole of the scale of each scale (8) and gas orifice flowmeter is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189247.2A CN104019862B (en) | 2014-05-07 | 2014-05-07 | For the rotary scale of gas orifice flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189247.2A CN104019862B (en) | 2014-05-07 | 2014-05-07 | For the rotary scale of gas orifice flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104019862A true CN104019862A (en) | 2014-09-03 |
| CN104019862B CN104019862B (en) | 2017-04-05 |
Family
ID=51436743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410189247.2A Active CN104019862B (en) | 2014-05-07 | 2014-05-07 | For the rotary scale of gas orifice flowmeter |
Country Status (1)
| Country | Link |
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| CN (1) | CN104019862B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107533009A (en) * | 2015-03-05 | 2018-01-02 | 耐斯特科技有限公司 | Detector pipe die plate and the method for reading detector pipe |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2033523A5 (en) * | 1969-02-26 | 1970-12-04 | Commissariat Energie Atomique | Measuring volume of radioactive sample |
| US4151745A (en) * | 1977-10-06 | 1979-05-01 | Cordy Roger W | Orifice meter having tampering indicator |
| CN201047768Y (en) * | 2007-06-25 | 2008-04-16 | 太平洋医材股份有限公司 | Gas flow rate indicating equipment |
| CN101408440A (en) * | 2008-11-26 | 2009-04-15 | 天津大学 | Convenient changing type hole-plate flowmeter |
| CN201955109U (en) * | 2010-11-30 | 2011-08-31 | 永嘉县吉达特种阀门有限公司 | Gas, liquid and orifice flowmeter |
-
2014
- 2014-05-07 CN CN201410189247.2A patent/CN104019862B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107533009A (en) * | 2015-03-05 | 2018-01-02 | 耐斯特科技有限公司 | Detector pipe die plate and the method for reading detector pipe |
| CN107533009B (en) * | 2015-03-05 | 2021-02-05 | 耐斯特科技有限公司 | Gas detector tube template and method for reading gas detector tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104019862B (en) | 2017-04-05 |
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Address after: 230051 No. 35 Yan'an Road, Baohe Industrial Zone, Hefei City, Anhui Province Patentee after: Hefei Jianghang Aircraft Equipment Co., Ltd. Address before: 230051 Anhui Province, Hefei City Industrial Park Yanan Baohe Road No. 35 Patentee before: Hefei Jianghang Aircraft Equipment Co., Ltd. |
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