CN107228695A - Integrated gas rotz flowmeter measuring tank - Google Patents
Integrated gas rotz flowmeter measuring tank Download PDFInfo
- Publication number
- CN107228695A CN107228695A CN201710544233.1A CN201710544233A CN107228695A CN 107228695 A CN107228695 A CN 107228695A CN 201710544233 A CN201710544233 A CN 201710544233A CN 107228695 A CN107228695 A CN 107228695A
- Authority
- CN
- China
- Prior art keywords
- gas
- casing
- flowmeter
- measuring tank
- air inlet
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 206010069747 Burkholderia mallei infection Diseases 0.000 title claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 239000012535 impurity Substances 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 9
- 239000008187 granular material Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000004531 microgranule Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
- G01F15/14—Casings, e.g. of special material
-
- 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
-
- 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
- G01F15/12—Cleaning arrangements; Filters
- G01F15/125—Filters
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F11/00—Coin-freed apparatus for dispensing, or the like, discrete articles
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/06—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for prepaying basic charges, e.g. rent for meters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides integrated gas rotz flowmeter measuring tank；Including：Positioned at the filter and gas roots flowmeter of box house, and the filter and gas roots flowmeter are fixed in casing using pipeline location hoop；The gas outlet of the admission line is connected with the filtering air inlet, and the gas outlet of the filter is connected with the air inlet of the gas roots flowmeter by U-shaped connecting tube, and the air inlet of outlet pipe is connected with the gas outlet of gas roots flowmeter；The air inlet of the admission line is located at the outside of casing upper surface, and the gas outlet of the outlet pipe is located at the outside of casing upper surface.The present invention is arranged at the upper end of casing using air inlet, outlet pipe, and when installing at the scene and replacing deaphragm gas meter, pipeline connection is very convenient, and reduces the outfit of elbow, can substantially reduce the pressure loss value of complete equipment；And because connecting more convenient, actual height can be installed according to the visual field demand positioning casing of daily meter reading.
Description
Technical field
The invention provides a kind of flowmeter measuring tank, more particularly to a kind of new gas roots flowmeter measuring tank.
Background technology
At present, unit gas, the installation of either intellectual or mechanical Roots's gas flow counter device, is required
Special installation room is built with gas unit, not only cycle length, cost are high, and space-consuming, it has not been convenient to install, particularly scene
Installation is limited by the external condition of place and detection device, it is impossible to is ensured its reliability installed, is also easy to produce the phenomenons such as gas leakage；
Secondly, it is impossible to which realization is effectively supervised, indivedual illegal users utilize the imperfection that feeder exists in itself, as do not protected
Shell, without carried out when monitoring anti-theft equipment it is illegal steal gas behavior, cause unnecessary heavy losses to supply unit.
The content of the invention
For deficiencies of the prior art, it is an object of the invention to provide integrated gas rotz flowmeter amount
Case.
The present invention provides integrated gas rotz flowmeter measuring tank, including：Positioned at the filter and gas waist of box house
Flowmeters, and the filter and gas roots flowmeter be fixed in casing using pipeline location hoop；
The gas outlet of the admission line is connected with the filtering air inlet, the gas outlet of the filter and the gas waist
The air inlet of flowmeters is connected by U-shaped connecting tube, the air inlet of outlet pipe and the gas outlet phase of gas roots flowmeter
Even；
The air inlet of the admission line is located at the outside of casing upper surface, and the gas outlet of the outlet pipe is located at casing upper end
The outside in face.
According to existing gas roots flowmeter measuring tank, be typically designed all be under enter under the mode that goes out；But the design is deposited
For topic be：Position is higher when most Gas Pipeline Design is installed at present, installs traditional flowmeter pipeline from top
It is cumbersome around getting off；
Integrated gas rotz flowmeter measuring tank of the present invention is preferentially located above casing using air inlet/outlet, is installed and is put at the scene
When changing deaphragm gas meter, pipeline connection is very convenient, and reduces the outfit of elbow, can substantially reduce the pressure of complete equipment
Penalty values.
Preferably, the U-shaped connecting tube is provided with impurity storage room and the switch with plug makees blowdown interface, the impurity
Storage room and switch with plug make the bottom that blowdown interface is successively set on the U-shaped connecting tube.Due to filter
Intake method upper entering and lower leaving, when slight granule foreign is after the filter screen of filter, can be deposited in the U-tube below filter
There is an impurity storage room lower section, and can make blowdown interface by the switch with plug of setting by impurity inside pipeline and thin
Small rubbish is excluded in time, so as to avoid because slight granule foreign is deposited in filter interior, filter is polluted and
Service life.
Preferably, the front and rear face of the casing is door expansion structure, and meter reading observation window is all set on door, is easy to copy
Table data.
Preferably, flowmeter meter is set on the gas roots flowmeter, and the flowmeter meter is rotatable 350 °
The gauge outfit of flowmeter is designed as the structure of rotary type by type, the present invention, it is possible to achieve the right side is entered on a left side for On-line Product mounting means
Go out to enter a left side with the right side and go out direct conversion, make the environmental suitability of product stronger.
Preferably, the left and right sides of the casing is door expansion structure, and casing left and right sides of the invention is opening chamber door
Internal locking device can be released afterwards（Latch or door lock）, deploy left and right sides, increase space for maintenance, be daily dimension
Shield provides facility.
Preferably, the pressure tappings locked with valve are provided with the admission line, are easy to monitor the pipe of air inlet at any time
Road admission pressure, pressure data support is provided for the failture evacuation of day-to-day operation.
Preferably, the air inlet/outlet pipeline connected mode is that loose flange is either threadedly coupled.
Preferably, the top air inlet/outlet of the casing is sealed using dash compoboard, it is ensured that outdoor during outdoor installation
Rainwater will not enter casing from top.Even if there is slight rainwater to enter, shutter is provided with below casing, can be discharged in time.
Preferably, the sidepiece of the casing and bottom offer Baiyesan-medicinal powder transom window, are easy to keep the ventilation of box house.
Preferably, the sidepiece of the casing is additionally provided with reading observation window, is easy to meter reading data.
Compared with prior art, the present invention has following beneficial effect：
（1）Structure of the present invention is novel, unique, simple, reliable, practical, has started combustible gas metering arrangement metering, has installed integration；
（2）Mechanism of the present invention is compact, conveniently installs, improves operating efficiency, and occupies little space, and saving of labor reduces and is mounted to
This；
（3）The illegal generation for stealing gas behavior can effectively be prevented；
（4）The present invention realizes industrialized mass production and installation, and Targets stabilization, reliable, will not produce gas leakage etc. bad
Phenomenon；
（5）The present invention is arranged at the upper end of casing using air inlet, outlet pipe, installs and replace deaphragm gas meter at the scene
When, pipeline connection is very convenient, and reduces the outfit of elbow, can substantially reduce the pressure loss value of complete equipment；And
Because connection is more convenient, actual height can be installed according to the visual field demand positioning casing of daily meter reading.
（6）The flowmeter meter of box house is designed as rotatable 350 ° of structures by the present invention, realizes that On-line Product is installed
A left side for mode enters the right side and goes out to enter a left side with the right side and go out direct conversion, makes the environmental suitability of product stronger.
（7）The casing left and right sides of the present invention can release internal locking device after chamber door is opened（Latch or door
Lock）, deploy left and right sides, increase space for maintenance, facility is provided for regular maintenance.
（8）The present invention sets impurity storage room and the switch with plug to make blowdown interface in the bottom of filter, due to mistake
The intake method upper entering and lower leaving of filter, when slight granule foreign is after the filter screen of filter, can be deposited in below filter
U-tube below have impurity storage room, and blowdown interface can be made by the switch with plug of setting by inside pipeline
Impurity and small garbage are excluded in time, so as to avoid because slight granule foreign is deposited in filter interior, filter is made
Into pollution and service life.
（9）The present invention designs gas outlet in the upper end of casing, due to the drive manner bottom in and top out of flowmeter, because of impurity
Deadweight, so that will not circulate easily into flowmeter cavity causes card table.
（10）The present invention is sealed in the top air inlet/outlet of casing using dash compoboard, it is ensured that during outdoor installation, outdoor
Rainwater will not enter casing from top, even if there is slight rainwater to enter, shutter is provided with below casing, can be discharged in time.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the structural representation of integrated gas rotz flowmeter measuring tank of the present invention；
Fig. 2 is the side view of integrated gas rotz flowmeter measuring tank of the present invention；
Fig. 3 is integrated gas rotz flowmeter measuring tank oblique view of the present invention；
Fig. 4 is integrated gas rotz flowmeter measuring tank top view of the present invention.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
The present embodiment is related to integrated gas rotz flowmeter measuring tank, and such as Fig. 1,2,3,4 include：Positioned at the filter of box house
3 and gas roots flowmeter 8, and the filter 3 and gas roots flowmeter 8 be fixed in casing using pipeline location hoop 7；
The gas outlet of the admission line 1 is connected with the air inlet of filter 3, gas outlet and the gas of the filter 3
The air inlet of body rotz flowmeter 8 is connected by U-shaped connecting tube 4, air inlet and the gas roots flowmeter 8 of outlet pipe 11
Gas outlet is connected；
The air inlet of the admission line 1 is located at the outside of casing upper surface, and the gas outlet of the outlet pipe 11 is located at casing
The outside of upper surface.
According to existing gas roots flowmeter measuring tank, be typically designed all be under enter under the mode that goes out；But the design is deposited
For topic be：Position is higher when most Gas Pipeline Design is installed at present, installs traditional flowmeter pipeline from top
It is cumbersome around getting off；
The gas roots flowmeter measuring tank that the present embodiment is related to preferentially is located above casing using air inlet/outlet, install at the scene and
When replacing deaphragm gas meter, pipeline connection is very convenient, and reduces the outfit of elbow, can substantially reduce the pressure of complete equipment
Power penalty values.
Further, the U-shaped connecting tube 4 is provided with impurity storage room 5 and the switch with plug makees blowdown interface 6, institute
State impurity storage room 5 and the switch with plug makees the bottom that blowdown interface 6 is successively set on the U-shaped connecting tube 4.Due to
The intake method upper entering and lower leaving of filter 4, when slight granule foreign is after the filter screen of filter 4, can be deposited in filter
There is impurity storage room 5 below the U-shaped connecting tube of lower section, and blowdown interface 6 can be made by the switch with plug of setting
Impurity inside pipeline and small garbage are excluded in time, so that avoid because slight granule foreign is deposited in filter interior,
Filter 4 is polluted and service life.
Further, the front and rear face of the casing is door expansion structure, and meter reading observation window is all set on door, is easy to
Meter reading data.
Further, flowmeter meter 9 is set on the gas roots flowmeter 8, and the flowmeter meter 9 is rotatable
The gauge outfit 9 of flowmeter is designed as the structure of rotary type by 350 ° of types, the present invention, it is possible to achieve a left side for On-line Product mounting means
Enter the right side and go out to enter a left side with the right side and go out direct conversion, make the environmental suitability of product stronger.
Further, the left and right sides of the casing is door expansion structure, and casing left and right sides of the invention is opening case
Internal locking device can be released after door（Latch or door lock）, deploy left and right sides, increase space for maintenance, be daily
Safeguard and facility is provided.
Further, the pressure tappings 2 locked with valve are provided with the admission line 1, are easy to monitor air inlet at any time
Pipeline air-inlet pressure, for day-to-day operation failture evacuation provide pressure data support.
Further, the air inlet duct 1, the connected mode of gas outlet pipeline 11 are that loose flange either screw thread connects
Connect.
Further, the top air inlet/outlet of the casing is sealed using dash compoboard 12, it is ensured that during outdoor installation, room
Outer rainwater will not enter casing from top.Even if there is slight rainwater to enter, shutter 13 is provided with below casing, can be arranged in time
Go out.
Further, the sidepiece of the casing and bottom offer Baiyesan-medicinal powder transom window 13, are easy to keep the logical of box house
Wind.
Further, the sidepiece of the casing is additionally provided with reading observation window 14, is easy to meter reading data.
Compared with prior art, the present invention has following beneficial effect：Structure of the present invention is novel, unique, simple, can
Lean on, it is practical, started combustible gas metering arrangement metering, integration be installed；Mechanism of the present invention is compact, conveniently installs, improves work
Efficiency, and occupy little space, saving of labor reduces installation cost；The present invention can effectively prevent the illegal generation for stealing gas behavior；
The present invention realizes industrialized mass production and installation, and Targets stabilization, reliable, will not produce the bad phenomenons such as gas leakage；This
Invention is arranged at the upper end of casing using air inlet, outlet pipe, when installing at the scene and replacing deaphragm gas meter, pipeline connection
It is very convenient, and the outfit of elbow is reduced, the pressure loss value of complete equipment can be substantially reduced；And because connection is compared
It is convenient, actual height can be installed according to the visual field demand positioning casing of daily meter reading.Flowmeter of the invention by box house
Gauge outfit is designed as rotatable 350 ° of structures, realizes that a left side for On-line Product mounting means enters the right side and goes out to enter a left side with the right side and go out direct conversion, makes
The environmental suitability of product is stronger.The casing left and right sides of the present invention can release internal locking device after chamber door is opened（Insert
Pin or door lock）, deploy left and right sides, increase space for maintenance, facility is provided for regular maintenance.The present invention is in filter
Bottom sets impurity storage room and the switch with plug to make blowdown interface, due to the intake method upper entering and lower leaving of filter, when light
Micro- granule foreign is after the filter screen of filter, and can be deposited in below the U-tube below filter has an impurity storage room, and
And blowdown interface can be made by the switch with plug of setting exclude impurity inside pipeline and small garbage in time, so as to keep away
Exempt from, because slight granule foreign is deposited in filter interior, to pollute filter and service life.The present invention is by outlet
Mouthful design is in the upper end of casing, due to the drive manner bottom in and top out of flowmeter, because of impurity deadweight, thus will not circulate easily to
Card table is caused in flowmeter cavity.The present invention is sealed in the top air inlet/outlet of casing using dash compoboard, it is ensured that outdoor peace
During dress, outdoor rainwater will not enter casing from top, even if there is slight rainwater to enter, shutter is provided with below casing, can
Discharge in time.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (10)
1. integrated gas rotz flowmeter measuring tank, it is characterised in that including：Positioned at the filter and gas waist wheel of box house
Flowmeter, and the filter and gas roots flowmeter be fixed in casing using pipeline location hoop；
The gas outlet of the admission line is connected with the filtering air inlet, the gas outlet of the filter and the gas waist
The air inlet of flowmeters is connected by U-shaped connecting tube, the air inlet of outlet pipe and the gas outlet phase of gas roots flowmeter
Even；
The air inlet of the admission line is located at the outside of casing upper surface, and the gas outlet of the outlet pipe is located at casing upper end
The outside in face.
2. integrated gas rotz flowmeter measuring tank as claimed in claim 1, it is characterised in that the U-shaped connecting tube is provided with
Impurity storage room and switch with plug make blowdown interface, and the impurity storage room and the switch with plug make blowdown interface successively
It is arranged on the bottom of the U-shaped connecting tube.
3. integrated gas rotz flowmeter measuring tank as claimed in claim 1, it is characterised in that the front and rear face of the casing is
Door expansion structure, and meter reading observation window is all set on door.
4. integrated gas rotz flowmeter measuring tank as claimed in claim 1, it is characterised in that on the gas roots flowmeter
Flowmeter meter is set, and the flowmeter meter is rotatable 350 ° of types.
5. integrated gas rotz flowmeter measuring tank as claimed in claim 1, it is characterised in that the left and right sides of the casing is
Door expansion structure.
6. integrated gas rotz flowmeter measuring tank as claimed in claim 1, it is characterised in that be provided with the admission line
The pressure tappings locked with valve.
7. integrated gas rotz flowmeter measuring tank as claimed in claim 1, it is characterised in that the air inlet/outlet pipeline connection
Mode is that loose flange is either threadedly coupled.
8. integrated gas rotz flowmeter measuring tank as claimed in claim 1, it is characterised in that enter outlet above the casing
Mouth is using the sealing of dash compoboard.
9. integrated gas rotz flowmeter measuring tank as claimed in claim 1, it is characterised in that the sidepiece of the casing and bottom
Offer Baiyesan-medicinal powder transom window.
10. integrated gas rotz flowmeter measuring tank as claimed in claim 1, it is characterised in that the sidepiece of the casing is also set
There is reading observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710544233.1A CN107228695B (en) | 2017-07-05 | 2017-07-05 | Integrated gas roots flowmeter box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710544233.1A CN107228695B (en) | 2017-07-05 | 2017-07-05 | Integrated gas roots flowmeter box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107228695A true CN107228695A (en) | 2017-10-03 |
| CN107228695B CN107228695B (en) | 2024-02-27 |
Family
ID=59956509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710544233.1A Active CN107228695B (en) | 2017-07-05 | 2017-07-05 | Integrated gas roots flowmeter box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107228695B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031649A (en) * | 2019-05-07 | 2019-07-19 | 衢州职业技术学院 | A kind of capacity checking apparatus and its detection method of air velocity |
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|---|---|---|---|---|
| EP0522757A1 (en) * | 1991-07-09 | 1993-01-13 | Honeywell Inc. | Safe channel design for flow sensor chip microbridges |
| JP2004101303A (en) * | 2002-09-06 | 2004-04-02 | Yazaki Corp | Gas meter, its mounting structure, and assembling method of gas meter |
| CN101074887A (en) * | 2006-09-26 | 2007-11-21 | 上海埃科燃气测控设备有限公司 | Gauging box of Roots gas flowmeter |
| CN201107073Y (en) * | 2007-09-30 | 2008-08-27 | 重庆前卫仪表厂 | Electronic type gas meter |
| CN101387533A (en) * | 2007-12-25 | 2009-03-18 | 上海埃科燃气测控设备有限公司 | IC card gas Roots flowmeter measuring pocket and measuring method |
| JP2009186430A (en) * | 2008-02-08 | 2009-08-20 | Toyo Gas Meter Kk | Gas meter |
| KR20100117776A (en) * | 2009-04-27 | 2010-11-04 | 주식회사 부산도시가스 | Fixture of gas meter |
| US20120118407A1 (en) * | 2010-11-16 | 2012-05-17 | Hydrometer Gmbh | Gas meter |
| CN103890551A (en) * | 2011-10-12 | 2014-06-25 | 液体比重计有限公司 | Gas meter |
| US20160109274A1 (en) * | 2013-06-12 | 2016-04-21 | Itron Gmbh | Gas meter and particle trap |
| US20160320218A1 (en) * | 2014-02-07 | 2016-11-03 | Panasonic Intellectual Property Management Co. Ltd | Gas flowmeter |
| CN206990037U (en) * | 2017-07-05 | 2018-02-09 | 上海埃科燃气测控设备有限公司 | Integrated gas rotz flowmeter measuring tank |
-
2017
- 2017-07-05 CN CN201710544233.1A patent/CN107228695B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0522757A1 (en) * | 1991-07-09 | 1993-01-13 | Honeywell Inc. | Safe channel design for flow sensor chip microbridges |
| JP2004101303A (en) * | 2002-09-06 | 2004-04-02 | Yazaki Corp | Gas meter, its mounting structure, and assembling method of gas meter |
| CN101074887A (en) * | 2006-09-26 | 2007-11-21 | 上海埃科燃气测控设备有限公司 | Gauging box of Roots gas flowmeter |
| CN201107073Y (en) * | 2007-09-30 | 2008-08-27 | 重庆前卫仪表厂 | Electronic type gas meter |
| CN101387533A (en) * | 2007-12-25 | 2009-03-18 | 上海埃科燃气测控设备有限公司 | IC card gas Roots flowmeter measuring pocket and measuring method |
| JP2009186430A (en) * | 2008-02-08 | 2009-08-20 | Toyo Gas Meter Kk | Gas meter |
| KR20100117776A (en) * | 2009-04-27 | 2010-11-04 | 주식회사 부산도시가스 | Fixture of gas meter |
| US20120118407A1 (en) * | 2010-11-16 | 2012-05-17 | Hydrometer Gmbh | Gas meter |
| CN103890551A (en) * | 2011-10-12 | 2014-06-25 | 液体比重计有限公司 | Gas meter |
| US20160109274A1 (en) * | 2013-06-12 | 2016-04-21 | Itron Gmbh | Gas meter and particle trap |
| US20160320218A1 (en) * | 2014-02-07 | 2016-11-03 | Panasonic Intellectual Property Management Co. Ltd | Gas flowmeter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031649A (en) * | 2019-05-07 | 2019-07-19 | 衢州职业技术学院 | A kind of capacity checking apparatus and its detection method of air velocity |
| CN110031649B (en) * | 2019-05-07 | 2023-10-27 | 衢州职业技术学院 | Air flow velocity capacity detection device and detection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107228695B (en) | 2024-02-27 |
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