CN203672425U - Gas flow wide-range metering device - Google Patents
Gas flow wide-range metering device Download PDFInfo
- Publication number
- CN203672425U CN203672425U CN201320870072.2U CN201320870072U CN203672425U CN 203672425 U CN203672425 U CN 203672425U CN 201320870072 U CN201320870072 U CN 201320870072U CN 203672425 U CN203672425 U CN 203672425U
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- flow
- gas flow
- metering device
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- 238000005259 measurement Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
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Abstract
The utility model relates to a gas flow wide-range metering device which mainly solves the problems that an existing gas flow wide-range device is complicated in wiring and high in price. The device comprises an inlet header pipe and an outlet header pipe, a main pipeline and an auxiliary pipeline are arranged between the inlet header pipe and the outlet header pipe, the main header pipe is formed by sequentially connecting a front main pipe section, a main flow meter, a back main pipe section and a main control valve, the auxiliary pipeline is formed by sequentially connecting a front auxiliary pipe section, an auxiliary flow meter, a back auxiliary pipe section and an auxiliary control valve, and the gas flow wide-range metering device is further provided with an electronic instrument which is used for controlling the main control valve and the auxiliary control valve to be opened and closed to meter flow accurately after the flow measured through the main flow meter and the flow measured through the auxiliary flow meter are judged. The main flow meter, the auxiliary flow meter and interface cables of the main control valve and the auxiliary control valve are connected to the electronic instrument, the electronic instrument is responsible for flow metering and valve control, wiring is convenient to achieve, the structure is simple, and price is relatively low.
Description
Technical field
The utility model relates to a kind of measurement of gas flow device, the measuring apparatus when being suitable for gas flow variation range and exceeding separate unit flow metering scope.
Background technology
For the measurement of gas flow, every flowmeter all has the scope of flow measurement at present, generally adopts separate unit flowmeter directly to measure to the measurement of gas flow.But in a lot of occasions, gas flow variation range exceedes the measurement range of separate unit flowmeter, at this moment meet the flowmeter of lower limit flow as selected, can not meet the metering upper limit; As flowmeter meets the upper limit flow of measuring, can not meet the lower limit flow of measurement.Therefore, need be by the flow meter that is no less than two, by the automatic decision pipeline that the gas flow of flowmeter decides the First Astronautic Research Institute for Measurement and Test to use of flowing through, the range ability of the measuring apparatus being combined into exceedes the range ability of separate unit flowmeter.
Existing gas flow metering device with wide measuring range, main and auxiliary flowmeter is connected by electric interfaces with main and auxiliary valve respectively, main and auxiliary flowmeter connects by electric interfaces, such device needs on main and auxiliary flowmeter, to configure respectively an electronic instrument, the price comparison of electronic instrument is high, so from cost, price is higher, and electrical wiring complexity.
Utility model content
In order to overcome existing gas flow wide-range device wiring complexity, deficiency that price is high, the utility model provides a kind of gas flow wide-range device, adopt an electronic instrument, connect main and auxiliary flowmeter and main and auxiliary by-pass valve control, this electronic instrument receives the flow signal from main and auxiliary flowmeter, after judgement, control is beaten and is opened or closed valve by-pass valve control, reaches the object of automatically selecting the pipeline of metering according to uninterrupted.
The technical scheme that the utility model adopts is: a kind of gas flow metering device with wide measuring range, it comprises entrance house steward and outlet header, between described entrance house steward and outlet header, establish main line and auxiliary pipeline, described main line is by leading front pipeline section, main flow meter, after main, pipeline section and main control valve connect and compose successively, described auxiliary pipeline is by auxiliary front pipeline section, auxiliary flowmeter, auxiliary rear pipeline section, auxiliary by-pass valve control connects and composes successively, described gas flow metering device with wide measuring range is also provided with for judging master, after secondary flow flowmeter measurement uninterrupted, by controlling master, auxiliary control valve opening processed is closed the electronic instrument of realizing flow accurate-metering, described electronic instrument respectively with master, auxiliary flowmeter and master, auxiliary by-pass valve control connects.
Described entrance house steward place sets up filtrator.
On main and auxiliary pipeline, set up corrugated tube.
Between described entrance house steward and main line, set up main valve, between described entrance house steward and auxiliary pipeline, set up auxiliary valve.
Described electronic instrument is arranged on the optional position of gas flow metering device with wide measuring range.
The upper limit flow of described main flow meter is greater than the upper limit flow of auxiliary flowmeter, and the lower limit flow of main flow meter is less than the upper limit flow of auxiliary flowmeter, and is greater than the lower limit flow of auxiliary flowmeter.
The beneficial effects of the utility model are: the interface cable of main and auxiliary flowmeter and main and auxiliary by-pass valve control is connected to an electronic instrument by the utility model, be responsible for flow metering and valve control by electronic instrument, facilitate wiring, simple in structure, and price is comparatively cheap.
Brief description of the drawings
Fig. 1 is structural map of the present utility model.
Fig. 2-Fig. 8 is that gas flow metering device with wide measuring range is implemented structural map.
1-entrance house steward, 2-the first header, pipeline section before 3-master, 4-main flow meter, 5-electronic instrument, pipeline section after 6-master, 7-main control valve, the auxiliary front pipeline section of 8-, the auxiliary flowmeter of 9-, the auxiliary rear pipeline section of 10-, the auxiliary by-pass valve control of 11-, 12-the second header, 13-outlet header, 14-filtrator, 15-main valve, the auxiliary valve of 16-, 17-entrance threeway header, 18-outlet threeway header.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
In Fig. 1, a kind of gas flow metering device with wide measuring range, it comprises entrance house steward 1, outlet header 13, the first header 2, the second header 12 and electronic instrument 5, between described the first header 2 and the second header 12, establish main line and auxiliary pipeline, described main line is by leading front pipeline section 3, main flow meter 4, after main, pipeline section 6 and main control valve 7 connect and compose successively, described auxiliary pipeline is by auxiliary front pipeline section 8, auxiliary flowmeter 9, auxiliary rear pipeline section 10, auxiliary control the family of power and influence 11 processed connect and compose successively, described gas flow metering device with wide measuring range is also provided with for judging master, after secondary flow flowmeter measurement uninterrupted, by controlling master, auxiliary control valve opening processed is closed the electronic instrument 5 of realizing flow accurate-metering, described electronic instrument 5 respectively with master, auxiliary flowmeter and master, auxiliary by-pass valve control connects,
In the time that the gas flow of flowing through increases gradually, first measured by auxiliary pipeline, the main control valve 7 of main line is closed, when flow exceedes the threshold value being preset in electronic instrument 5, the main control valve 7 of main line is opened, the auxiliary by-pass valve control 11 of auxiliary pipeline is closed, and is responsible for metering by main line; In the time that flow is reduced to preset threshold value, the auxiliary by-pass valve control 11 of auxiliary pipeline is opened, the main control valve 7 of main line is closed, be responsible for metering by auxiliary pipeline, adopt the keying of Single Electron instrument 5 by-pass valve controls, be responsible for flow metering and valve control by Single Electron instrument, facilitate wiring, simple in structure, and price is comparatively cheap, reduce Instrument use number in the past, greatly reduce cost.
Main and auxiliary pipeline increases corrugated tube.
Described electronic instrument (5) is arranged on the optional position of gas flow metering device with wide measuring range.
The upper limit flow of described main flow meter 4 is greater than the upper limit flow of auxiliary flowmeter 9, the lower limit flow of main flow meter 4 is less than the upper limit flow of auxiliary flowmeter 9, and be greater than the lower limit flow of auxiliary flowmeter 9, ensure that main and auxiliary flowmeter 9 has enough surpluses between switching, avoid frequent switching, ensureing all can accurate-metering in flow range ability.
In Fig. 2, be with Fig. 1 difference, between entrance house steward 1 and the first header 2, be provided with filtrator 14, filter for gas, to reach the effect of purification.
In Fig. 3, be with Fig. 1 difference, between the first header 2 and main front pipeline section 3, be provided with between main valve 15, the first headers 2 and auxiliary front pipeline section 8 and be provided with auxiliary valve 16.
In Fig. 4, be with Fig. 3 difference, between entrance house steward 1 and the first header 2, be provided with filtrator 14.
In Fig. 5, be with Fig. 1 difference, the first header 2 and the second header 12 replace to respectively entrance threeway header 17 and outlet threeway header 18.
In Fig. 6, be with Fig. 5 difference, between entrance house steward 1 and entrance threeway header 17, be provided with filtrator 14, filter for gas, to reach the effect of purification.
In Fig. 7, be with Fig. 5 difference, between entrance threeway header 17 and main front pipeline section 3, be provided with main valve 15, between entrance threeway header 17 and auxiliary front pipeline section 8, be provided with auxiliary valve 16.
In Fig. 8, be with Fig. 7 difference, between entrance house steward 1 and entrance threeway header 17, be provided with filtrator 14.
Below described embodiment is only preferred implementation of the present utility model by reference to the accompanying drawings, and the not restriction to protection domain of the present utility model, any improvement of doing based on the utility model spirit all ought to be within the utility model protection domain.
Claims (6)
1. a gas flow metering device with wide measuring range, it is characterized in that: it comprises entrance house steward (1) and outlet header (13), between described entrance house steward (1) and outlet header (13), establish main line and auxiliary pipeline, described main line is by leading front pipeline section (3), main flow meter (4), after main, pipeline section (6) and main control valve (7) connect and compose successively, described auxiliary pipeline is by auxiliary front pipeline section (8), auxiliary flowmeter (9), auxiliary rear pipeline section (10), auxiliary by-pass valve control (11) connects and composes successively, described gas flow metering device with wide measuring range is also provided with for judging master, after secondary flow flowmeter measurement uninterrupted, by controlling master, auxiliary control valve opening processed is closed the electronic instrument (5) of realizing flow accurate-metering, described electronic instrument (5) respectively with master, auxiliary flowmeter (4, 9) and main, auxiliary by-pass valve control (7, 11) connect.
2. a kind of gas flow metering device with wide measuring range according to claim 1, is characterized in that: described entrance house steward (1) locates to set up filtrator (14).
3. a kind of gas flow metering device with wide measuring range according to claim 1, is characterized in that: on main and auxiliary pipeline, set up corrugated tube.
4. a kind of gas flow metering device with wide measuring range according to claim 1, is characterized in that: between described entrance house steward (1) and main line, set up main valve (15), set up auxiliary valve (16) between described entrance house steward (1) and auxiliary pipeline.
5. a kind of gas flow metering device with wide measuring range according to claim 1, is characterized in that: described electronic instrument (5) is arranged on the optional position of gas flow metering device with wide measuring range.
6. a kind of gas flow metering device with wide measuring range according to claim 1, it is characterized in that: the upper limit flow of described main flow meter (4) is greater than the upper limit flow of auxiliary flowmeter (9), the lower limit flow of main flow meter (4) is less than the upper limit flow of auxiliary flowmeter (9), and is greater than the lower limit flow of auxiliary flowmeter (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870072.2U CN203672425U (en) | 2013-12-27 | 2013-12-27 | Gas flow wide-range metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870072.2U CN203672425U (en) | 2013-12-27 | 2013-12-27 | Gas flow wide-range metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672425U true CN203672425U (en) | 2014-06-25 |
Family
ID=50968708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320870072.2U Expired - Lifetime CN203672425U (en) | 2013-12-27 | 2013-12-27 | Gas flow wide-range metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672425U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215406A (en) * | 2014-09-12 | 2014-12-17 | 天津博益气动股份有限公司 | Wide-range flow-type leak detector and detection method thereof |
| CN104964715A (en) * | 2015-07-07 | 2015-10-07 | 成都国光电子仪表有限责任公司 | Flow measuring device capable of achieving remote monitoring and improving measuring accuracy conveniently |
| CN105021235A (en) * | 2015-07-13 | 2015-11-04 | 成都国光电子仪表有限责任公司 | Flow metering pipe |
| CN105737911A (en) * | 2016-02-02 | 2016-07-06 | 新疆中元天能油气科技股份有限公司 | Gas-liquid two-phase flow meter |
| CN105737921A (en) * | 2016-02-02 | 2016-07-06 | 新疆中元天能油气科技股份有限公司 | Wide-range gas-liquid two-phase flow meter |
| CN110595560A (en) * | 2019-10-12 | 2019-12-20 | 王俊玉 | Liquid flowmeter |
| US10863667B2 (en) | 2015-09-28 | 2020-12-15 | Precision Planting Llc | Systems and devices for controlling and monitoring liquid applications of agricultural fields |
-
2013
- 2013-12-27 CN CN201320870072.2U patent/CN203672425U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215406A (en) * | 2014-09-12 | 2014-12-17 | 天津博益气动股份有限公司 | Wide-range flow-type leak detector and detection method thereof |
| CN104964715A (en) * | 2015-07-07 | 2015-10-07 | 成都国光电子仪表有限责任公司 | Flow measuring device capable of achieving remote monitoring and improving measuring accuracy conveniently |
| CN105021235A (en) * | 2015-07-13 | 2015-11-04 | 成都国光电子仪表有限责任公司 | Flow metering pipe |
| US10863667B2 (en) | 2015-09-28 | 2020-12-15 | Precision Planting Llc | Systems and devices for controlling and monitoring liquid applications of agricultural fields |
| US11337366B2 (en) | 2015-09-28 | 2022-05-24 | Precision Planting Llc | Systems and devices for controlling and monitoring liquid applications of agricultural fields |
| US11350562B2 (en) | 2015-09-28 | 2022-06-07 | Precision Planting Llc | Systems and devices for controlling and monitoring liquid applications of agricultural fields |
| CN105737911A (en) * | 2016-02-02 | 2016-07-06 | 新疆中元天能油气科技股份有限公司 | Gas-liquid two-phase flow meter |
| CN105737921A (en) * | 2016-02-02 | 2016-07-06 | 新疆中元天能油气科技股份有限公司 | Wide-range gas-liquid two-phase flow meter |
| CN110595560A (en) * | 2019-10-12 | 2019-12-20 | 王俊玉 | Liquid flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |