CN104019862B - For the rotary scale of gas orifice flowmeter - Google Patents
For the rotary scale of gas orifice flowmeter Download PDFInfo
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- CN104019862B CN104019862B CN201410189247.2A CN201410189247A CN104019862B CN 104019862 B CN104019862 B CN 104019862B CN 201410189247 A CN201410189247 A CN 201410189247A CN 104019862 B CN104019862 B CN 104019862B
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- scale
- positioning sleeve
- rotary
- fixing screws
- handle
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Abstract
The invention belongs to gas flow measurement technology, is related to the improvement to gas orifice flowmeter scale.Including connection tube assembly (1) and mounting bracket (3), it is characterised in that：By a rotary scale being made up of handle (4), rotary scale fixing screws (5), upper positioning sleeve (6), rotary substrate (7), scale (8), scale fixing screws (9), lower positioning sleeve (10), handle fixing screws (11) and packing ring (12).The present invention proposes a kind of rotary scale of improved gas orifice flowmeter, greatly facilitates the conversion of scale, simplifies conversion operation step, improve measurement efficiency, reduce measurement error.
Description
Technical field
The invention belongs to gas flow measurement technology, is related to the improvement to gas orifice flowmeter scale.
Background technology
, referring to Fig. 1, it is by connecting tube assembly 1, scale 2 and mounting bracket for the structure of current gas orifice flowmeter scale
3 compositions, connection tube assembly 1 and scale 2 are fixed by screws in mounting bracket 3.Display tube and scale in connection tube assembly 1
2 are in plumbness.When there is fluid column in display tube, by the scale of scale 2 read height conversion by fluid column into stream
Value.Which has the disadvantage：When the metering hole of gas orifice flowmeter is changed according to the size of institute's measurement of discharge, scale 2 also will
Corresponding scale is replaced with therewith.Cause cumbersome, time growth, measurement efficiency decline.Meanwhile, change scale and can lead
Cause measurement error increase.
The content of the invention
The purpose of the present invention is：A kind of rotary scale of improved gas orifice flowmeter is proposed, to facilitate scale
Conversion, simplifies conversion operation step, improves measurement efficiency, reduces measurement error.
The technical scheme is that：For the rotary scale of gas orifice flowmeter, including connection tube assembly 1 and installation
Support 3, connection tube assembly 1 are fixed by screws in mounting bracket 3；It is characterized in that：There is one to be fixed in mounting bracket 3
Rotary scale, it is by handle 4, rotary scale fixing screws 5, upper positioning sleeve 6, rotary substrate 7, scale 8, scale fixing screws
9th, lower positioning sleeve 10, handle fixing screws 11 and packing ring 12 are constituted；Upper positioning sleeve 6 is an annulus, and upper positioning sleeve 6 is by rotation
Scale fixing screws 5 are fixed on the top of mounting bracket 3, the position of 1 upper end of close connection tube assembly, the axis of upper positioning sleeve 6
Keep it is vertical and with the diameter parallel for connect display tube in tube assembly 1, lower positioning sleeve 10 and an annulus, lower positioning sleeve 10
The bottom of mounting bracket 3, the close position for connecting 1 lower end of tube assembly, lower positioning sleeve are fixed on by rotary scale fixing screws 5
10 centre bore is coaxial with the centre bore of upper positioning sleeve 6, and rotary substrate 7 is divided into three sections from top to bottom, epimere be upper short axle, stage casing
For section for regular polygon prism, hypomere be lower short axle, upper short axle from bottom to top through upper positioning sleeve 6 centre bore after enter
The center stepped hole of handle 4, has central blind hole on the upper surface of upper short axle, by handle fixing screws 11 and packing ring 12 by handss
Handle 4 and upper short axle are connected as the center interporal lacuna of entirety, the external diameter of upper short axle and upper positioning sleeve 6 and coordinate；Lower short axle is from the top down
Through lower positioning sleeve 10 centre bore and keep gap to coordinate；7 stage casing prism of rotary substrate is regular triangular prism to positive ten prism,
Fix a scale 8 by scale fixing screws 9 on each side of 7 stage casing prism of rotary substrate, the scale of each scale 8 with
The aperture correspondence of one metering hole of gas orifice flowmeter.
It is an advantage of the invention that：A kind of rotary scale of improved gas orifice flowmeter is proposed, mark is greatly facilitated
The conversion of chi, simplifies conversion operation step, improves measurement efficiency, reduce measurement error.
Description of the drawings
Fig. 1 is a kind of structural representation of current gas orifice flowmeter scale.
Fig. 2 is the structural representation of the present invention.
Specific embodiment
Below the present invention is described in further details.Referring to Fig. 2, for the rotary scale of gas orifice flowmeter, bag
Connection tube assembly 1 and mounting bracket 3 are included, connection tube assembly 1 is fixed by screws in mounting bracket 3；It is characterized in that：Have one
The individual rotary scale being fixed in mounting bracket 3, it is by handle 4, rotary scale fixing screws 5, upper positioning sleeve 6, rotary substrate
7th, scale 8, scale fixing screws 9, lower positioning sleeve 10, handle fixing screws 11 and packing ring 12 are constituted；Upper positioning sleeve 6 is a circle
Ring, upper positioning sleeve 6 is fixed on the top of mounting bracket 3 by rotary scale fixing screws 5, near connection tube assembly 1 upper end
Position, the axis of upper positioning sleeve 6 keep it is vertical and with the diameter parallel for connecting display tube in tube assembly 1, lower positioning sleeve 10
It is an annulus, lower positioning sleeve 10 is fixed on the bottom of mounting bracket 3 by rotary scale fixing screws 5, near communicating pipe group
The position of 1 lower end of part, the centre bore of lower positioning sleeve 10 are coaxial with the centre bore of upper positioning sleeve 6, and rotary substrate 7 is divided into from top to bottom
Three sections, epimere is upper short axle, and stage casing is section for the prism of regular polygon, and hypomere is lower short axle, and upper short axle passed through from bottom to top
The center stepped hole of handle 4 is entered after the centre bore of upper positioning sleeve 6, has central blind hole on the upper surface of upper short axle, by handss
Handle 4 and upper short axle are connected as the centre bore of entirety, the external diameter of upper short axle and upper positioning sleeve 6 for handle fixing screws 11 and packing ring 12
Gap coordinates；Lower short axle passes through the centre bore of lower positioning sleeve 10 from the top down and keeps gap to coordinate；7 stage casing prism of rotary substrate
For regular triangular prism to positive ten prism, one is fixed by scale fixing screws 9 on each side of 7 stage casing prism of rotary substrate
Scale 8, the aperture of one metering hole of scale and gas orifice flowmeter of each scale 8 are corresponding.
The present invention using method be：Produced accordingly according to the aperture of gas orifice flowmeter each metering hole in advance
Scale 8, each scale 8 are corresponding with the metering hole of a special pore size distribution.Metering hole one range of flow of correspondence of certain pore size.When
Determine that rotary handle 4 makes corresponding scale 8 occur in display tube after adopted metering hole according to the estimated value of measured flow
Side, you can start flow measurement.Complete by rotary handle 4 is only needed to during conversion scale 8, when greatling save measurement preparation
Between.Due to without dismantling scale 8, it also avoid dismantling and installation cause scale position error.
One embodiment of the present of invention, 7 stage casing prism of rotary substrate are positive seven prism, on 7 stage casing prism of rotary substrate
7 scales 8 are fixed with, can easily be changed according to the metering hole of 7 different pore sizes.
Claims (1)
1. it is used for the rotary scale of gas orifice flowmeter, including connection tube assembly (1) and mounting bracket (3), connects tube assembly
(1) it is fixed by screws in mounting bracket (3)；It is characterized in that：There is a rotation mark being fixed in mounting bracket (3)
Chi, it fixes spiral shell by handle (4), rotary scale fixing screws (5), upper positioning sleeve (6), rotary substrate (7), scale (8), scale
Nail (9), lower positioning sleeve (10), handle fixing screws (11) and packing ring (12) composition；Upper positioning sleeve (6) is an annulus, upper fixed
Position set (6) is fixed on the top of mounting bracket (3) by rotary scale fixing screws (5), near connection tube assembly (1) upper end
Position, the axis of upper positioning sleeve (6) keep it is vertical and with the diameter parallel for connecting display tube in tube assembly (1), lower positioning sleeve
(10) be also an annulus, lower positioning sleeve (10) be fixed on by rotary scale fixing screws (5) mounting bracket (3) bottom,
Near the position of connection tube assembly (1) lower end, the centre bore of lower positioning sleeve (10) is coaxial with the centre bore of upper positioning sleeve (6), rotation
Turn matrix (7) and be divided into three sections from top to bottom, epimere is upper short axle, stage casing is section for the prism of regular polygon, and hypomere is short under being
Axle, upper short axle enter the center stepped hole of handle (4) from bottom to top through after the centre bore of upper positioning sleeve (6), in upper short axle
There is central blind hole on upper surface, handle (4) and upper short axle be connected as by entirety by handle fixing screws (11) and packing ring (12),
The center interporal lacuna of the external diameter of upper short axle and upper positioning sleeve (6) coordinates；Lower short axle is from the top down through in lower positioning sleeve (10)
Heart hole simultaneously keeps gap to coordinate；Rotary substrate (7) stage casing prism be regular triangular prism to positive ten prism any one, in rotary substrate
(7) fix a scale (8) by scale fixing screws (9) on each side of stage casing prism, the scale of each scale (8) with
The aperture correspondence of one metering hole of gas orifice flowmeter.
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 CN104019862A (en) | 2014-09-03 |
| CN104019862B true 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 |
|---|---|
| CN (1) | CN104019862B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3265787A4 (en) * | 2015-03-05 | 2018-11-07 | Nextteq, LLC | Gas detector tube template and methods of reading gas detector tubes |
Citations (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
Patent Citations (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104019862A (en) | 2014-09-03 |
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| CP03 | Change of name, title or address |
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. |