CN107228695B - Integrated gas roots flowmeter box - Google Patents
Integrated gas roots flowmeter box Download PDFInfo
- Publication number
- CN107228695B CN107228695B CN201710544233.1A CN201710544233A CN107228695B CN 107228695 B CN107228695 B CN 107228695B CN 201710544233 A CN201710544233 A CN 201710544233A CN 107228695 B CN107228695 B CN 107228695B
- Authority
- CN
- China
- Prior art keywords
- box body
- air inlet
- pipeline
- air outlet
- filter
- 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.)
- Active
Links
- 239000012535 impurity Substances 0.000 claims description 28
- 239000010865 sewage Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 22
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001681 protective effect Effects 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 an integrated gas roots flowmeter case; comprising the following steps: a filter and a gas roots flowmeter positioned in the box body, wherein the filter and the gas roots flowmeter are fixed in the box body by adopting a pipeline positioning hoop; the air outlet of the air inlet pipeline is connected with the air inlet of the filter, the air outlet of the filter is connected with the air inlet of the gas roots flowmeter through a U-shaped connecting pipe, and the air inlet of the air outlet pipeline is connected with the air outlet of the gas roots flowmeter; the air inlet of the air inlet pipeline is positioned at the outer side of the upper end face of the box body, and the air outlet of the air outlet pipeline is positioned at the outer side of the upper end face of the box body. The invention adopts the air inlet pipeline and the air outlet pipeline which are arranged at the upper end of the box body, so that the pipeline connection is very convenient when the diaphragm gas meter is installed and replaced on site, the allocation of an elbow is reduced, and the pressure loss value of the whole equipment can be greatly reduced; and because the connection is more convenient, the actual installation height of the box body can be positioned according to the visual field requirement of daily meter reading.
Description
Technical Field
The invention provides a flow metering box, and particularly relates to a novel gas roots flow metering box.
Background
At present, the installation of a unit gas-using type intelligent Roots gas flowmeter device or a mechanical Roots gas flowmeter device requires the construction of a special installation chamber by using a gas unit, so that the unit gas-using type intelligent Roots gas flowmeter device has the advantages of long period, high manufacturing cost, space occupation, inconvenient installation, incapability of ensuring the installation reliability due to the limitation of the site and the external conditions of detection equipment, easiness in air leakage and the like; secondly, effective supervision cannot be realized, and individual illegal users can use the defects existing in the air supply device, such as illegal air stealing behavior under the conditions of no protective shell, no monitoring anti-theft equipment and the like, so that unnecessary serious loss is caused to an air supply unit.
Disclosure of Invention
In view of the foregoing deficiencies of the prior art, it is an object of the present invention to provide an integrated gas roots flowmeter case.
The present invention provides an integrated gas roots flowmeter case comprising: a filter and a gas roots flowmeter positioned in the box body, wherein the filter and the gas roots flowmeter are fixed in the box body by adopting a pipeline positioning hoop;
the air outlet of the air inlet pipeline is connected with the air inlet of the filter, the air outlet of the filter is connected with the air inlet of the gas roots flowmeter through a U-shaped connecting pipe, and the air inlet of the air outlet pipeline is connected with the air outlet of the gas roots flowmeter;
the air inlet of the air inlet pipeline is positioned at the outer side of the upper end face of the box body, and the air outlet of the air outlet pipeline is positioned at the outer side of the upper end face of the box body.
According to the existing gas roots flowmeter box, the general design is a mode of lower inlet and lower outlet; however, this design has the following problems: most of the existing gas pipelines are higher in design and installation, and the traditional flowmeter pipelines are more troublesome to wind from the upper side;
the integrated gas flow meter box adopts the gas inlet and outlet which are preferentially arranged above the box body, so that the pipeline connection is very convenient when the membrane gas meter is installed and replaced on site, the allocation of an elbow is reduced, and the pressure loss value of the whole equipment can be greatly reduced.
Preferably, the U-shaped connecting pipe is provided with an impurity storage chamber and a switch with a plug as a sewage draining interface, and the impurity storage chamber and the switch with the plug are sequentially arranged at the lower part of the U-shaped connecting pipe. Because the air inlet mode of the filter goes in and out from top to bottom, after slight particle impurities pass through the filter screen of the filter, the impurity storage chamber is arranged below the U-shaped pipe below the filter, and impurities and fine garbage inside the pipeline can be timely removed by using the arranged switch with the plug as a sewage discharging interface, so that the pollution and the service life of the filter caused by the accumulation of the slight particle impurities inside the filter are avoided.
Preferably, the method comprises the steps of, the front and rear faces of the box body are of a door expansion structure, and meter reading observation windows are arranged on the doors, so that meter reading data is facilitated.
Preferably, the flowmeter head is arranged on the gas roots flowmeter and is rotatable by 350 degrees, and the flowmeter head is designed into a rotatable structure, so that direct conversion of left-in and right-out and right-in and left-out of a product on-line installation mode can be realized, and the environmental adaptability of the product is stronger.
Preferably, the left and right sides of the box body are of a door expansion structure, and the left and right sides of the box body can release the internal locking device (a bolt or a door lock) after the box door is opened, so that the left and right sides can be expanded, the overhaul space is increased, and convenience is provided for daily maintenance.
Preferably, a pressure taking port with a valve for locking is arranged on the air inlet pipeline, so that the pipeline air inlet pressure of the air inlet can be conveniently monitored at any time, and pressure data support is provided for troubleshooting of daily operation.
Preferably, the air inlet and outlet pipeline is connected in a movable flange or threaded connection mode.
Preferably, the upper air inlet and outlet of the box body is sealed by a water blocking combination plate, so that outdoor rainwater cannot enter the box body from above when the outdoor box body is installed in open air. Even if slight rainwater enters, the shutter is arranged below the box body, so that the rainwater can be discharged in time.
Preferably, the side and bottom of the box body are provided with louver air-diffusing windows, so that ventilation in the box body can be kept conveniently.
Preferably, a reading observation window is further arranged on the side portion of the box body, so that meter reading data are convenient.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention has novel, unique, simple, reliable and practical structure, and initiates the integration of metering and installation of the gas metering device;
(2) The invention has compact mechanism, convenient installation, improved working efficiency, small occupied space, labor saving and reduced installation cost;
(3) The occurrence of illegal gas stealing behavior can be effectively prevented;
(4) The invention realizes industrialized mass production and installation, has stable and reliable metering performance, and can not generate bad phenomena such as air leakage and the like;
(5) The invention adopts the air inlet pipeline and the air outlet pipeline which are arranged at the upper end of the box body, so that the pipeline connection is very convenient when the diaphragm gas meter is installed and replaced on site, the allocation of an elbow is reduced, and the pressure loss value of the whole equipment can be greatly reduced; and because the connection is more convenient, the actual installation height of the box body can be positioned according to the visual field requirement of daily meter reading.
(6) According to the invention, the flowmeter gauge outfit in the box body is designed into a rotatable 350-degree structure, so that the direct conversion of left-in and right-in and left-out of a product on-line installation mode is realized, and the environmental adaptability of the product is stronger.
(7) The left side and the right side of the box body can release the internal locking device (the bolt or the door lock) after the box door is opened, so that the left side and the right side can be unfolded, the overhaul space is enlarged, and convenience is provided for daily maintenance.
(8) The invention sets the impurity storage room and the switch with the plug as the sewage discharging interface at the lower part of the filter, because the air inlet mode of the filter is up-down in-out, when the slight particle impurities pass through the filter screen of the filter, the impurity storage room can be piled up under the U-shaped pipe under the filter, and the impurities and the tiny garbage in the pipeline can be timely discharged by the switch with the plug as the sewage discharging interface, thereby avoiding the pollution and the service life of the filter caused by the accumulation of the slight particle impurities in the filter.
(9) The air outlet is designed at the upper end of the box body, and the air outlet is arranged at the upper end of the box body in a running mode of the flowmeter, so that impurities cannot flow into the cavity of the flowmeter easily to cause meter clamping due to dead weight of the impurities.
(10) According to the invention, the water blocking combination plate is adopted to seal the air inlet and the air outlet at the upper part of the box body, so that outdoor rainwater can not enter the box body from the upper part during outdoor installation, and even if slight rainwater enters the box body, the shutter is arranged at the lower part of the box body, so that the rainwater can be discharged in time.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of an integrated gas roots flowmeter case of the present invention;
FIG. 2 is a side view of an integrated gas roots flowmeter case of the present invention;
FIG. 3 is an oblique view of an integrated gas roots flowmeter case of the present invention;
fig. 4 is a top view of the integrated gas roots flowmeter case of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
Example 1
This embodiment relates to an integrated gas roots flowmeter case, as shown in fig. 1, 2, 3, 4, comprising: a filter 3 and a gas roots flowmeter 8 which are positioned in the box body, wherein the filter 3 and the gas roots flowmeter 8 are fixed in the box body by a pipeline positioning hoop 7;
the air outlet of the air inlet pipeline 1 is connected with the air inlet of the filter 3, the air outlet of the filter 3 is connected with the air inlet of the gas roots flowmeter 8 through a U-shaped connecting pipe 4, and the air inlet of the air outlet pipeline 11 is connected with the air outlet of the gas roots flowmeter 8;
the air inlet of the air inlet pipeline 1 is positioned at the outer side of the upper end face of the box body, and the air outlet of the air outlet pipeline 11 is positioned at the outer side of the upper end face of the box body.
According to the existing gas roots flowmeter box, the general design is a mode of lower inlet and lower outlet; however, this design has the following problems: most of the existing gas pipelines are higher in design and installation, and the traditional flowmeter pipelines are more troublesome to wind from the upper side;
the gas flow meter box related to the embodiment is arranged above the box body by adopting the gas inlet and outlet preferentially, so that the pipeline connection is very convenient when the diaphragm gas meter is installed and replaced on site, the elbow is reduced, and the pressure loss value of the whole equipment can be greatly reduced.
Further, the U-shaped connecting pipe 4 is provided with an impurity storage chamber 5 and a switch with a plug as a sewage draining interface 6, and the impurity storage chamber 5 and the switch with a plug as the sewage draining interface 6 are sequentially arranged at the lower part of the U-shaped connecting pipe 4. Because the air inlet mode of the filter 4 goes in and out from top to bottom, after slight particulate impurities pass through the filter screen of the filter 4, the impurity storage chamber 5 is arranged below the U-shaped connecting pipe below the filter and can timely remove impurities and fine garbage in the pipeline by using the arranged switch with the plug as the sewage discharging interface 6, thereby avoiding the pollution and the service life of the filter 4 caused by the accumulation of the slight particulate impurities in the filter.
Further, the front and rear faces of the box body are of door expansion structures, and meter reading observation windows are arranged on the doors, so that meter reading data are convenient.
Further, the flowmeter head 9 is arranged on the gas roots flowmeter 8, and the flowmeter head 9 is rotatable for 350 degrees.
Furthermore, the left side and the right side of the box body are of a door expansion structure, and the left side and the right side of the box body can release an internal locking device (a bolt or a door lock) after the box door is opened, so that the left side and the right side can be expanded, the overhaul space is enlarged, and convenience is provided for daily maintenance.
Further, a pressure taking port 2 with a valve for locking is arranged on the air inlet pipeline 1, so that the pipeline air inlet pressure of the air inlet can be conveniently monitored at any time, and pressure data support is provided for troubleshooting of daily operation.
Further, the connection mode of the air inlet pipeline 1 and the air outlet pipeline 11 is movable flanges or threaded connection.
Further, the upper air inlet and outlet of the box body is sealed by adopting a water blocking composite board 12, so that outdoor rainwater cannot enter the box body from the upper side when the outdoor box body is installed in open air. Even if slight rainwater enters, the shutter 13 is arranged below the box body, so that the rainwater can be discharged in time.
Further, louver air-diffusing windows 13 are arranged on the side parts and the bottom of the box body, so that ventilation inside the box body can be kept conveniently.
Further, a reading observation window 14 is further arranged on the side portion of the box body, so that meter reading data are facilitated.
Compared with the prior art, the invention has the following beneficial effects: the invention has novel, unique, simple, reliable and practical structure, and initiates the integration of metering and installation of the gas metering device; the invention has compact mechanism, convenient installation, improved working efficiency, small occupied space, labor saving and reduced installation cost; the invention can effectively prevent illegal gas stealing behavior; the invention realizes industrialized mass production and installation, has stable and reliable metering performance, and can not generate bad phenomena such as air leakage and the like; the invention adopts the air inlet pipeline and the air outlet pipeline which are arranged at the upper end of the box body, so that the pipeline connection is very convenient when the diaphragm gas meter is installed and replaced on site, the allocation of an elbow is reduced, and the pressure loss value of the whole equipment can be greatly reduced; and because the connection is more convenient, the actual installation height of the box body can be positioned according to the visual field requirement of daily meter reading. According to the invention, the flowmeter gauge outfit in the box body is designed into a rotatable 350-degree structure, so that the direct conversion of left-in and right-in and left-out of a product on-line installation mode is realized, and the environmental adaptability of the product is stronger. The left side and the right side of the box body can release the internal locking device (the bolt or the door lock) after the box door is opened, so that the left side and the right side can be unfolded, the overhaul space is enlarged, and convenience is provided for daily maintenance. The invention sets the impurity storage room and the switch with the plug as the sewage discharging interface at the lower part of the filter, because the air inlet mode of the filter is up-down in-out, when the slight particle impurities pass through the filter screen of the filter, the impurity storage room can be piled up under the U-shaped pipe under the filter, and the impurities and the tiny garbage in the pipeline can be timely discharged by the switch with the plug as the sewage discharging interface, thereby avoiding the pollution and the service life of the filter caused by the accumulation of the slight particle impurities in the filter. The air outlet is designed at the upper end of the box body, and the air outlet is arranged at the upper end of the box body in a running mode of the flowmeter, so that impurities cannot flow into the cavity of the flowmeter easily to cause meter clamping due to dead weight of the impurities. According to the invention, the water blocking combination plate is adopted to seal the air inlet and the air outlet at the upper part of the box body, so that outdoor rainwater can not enter the box body from the upper part during outdoor installation, and even if slight rainwater enters the box body, the shutter is arranged at the lower part of the box body, so that the rainwater can be discharged in time.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (1)
1. Integration gaseous roots flow metering tank, its characterized in that includes: a filter and a gas roots flowmeter positioned in the box body, wherein the filter and the gas roots flowmeter are fixed in the box body by adopting a pipeline positioning hoop;
the air outlet of the air inlet pipeline is connected with the air inlet of the filter, the air outlet of the filter is connected with the air inlet of the gas roots flowmeter through a U-shaped connecting pipe, and the air inlet of the air outlet pipeline is connected with the air outlet of the gas roots flowmeter;
the air inlet of the air inlet pipeline is positioned at the outer side of the upper end face of the box body, and the air outlet of the air outlet pipeline is positioned at the outer side of the upper end face of the box body;
the U-shaped connecting pipe is provided with an impurity storage chamber and a switch with a plug as a sewage draining interface, and the impurity storage chamber and the switch with the plug are sequentially arranged at the lower part of the U-shaped connecting pipe;
the front and rear faces of the box body are of door expansion structures, and meter reading observation windows are arranged on the doors;
the flowmeter head is arranged on the gas roots flowmeter and can rotate for 350 degrees;
the left side part and the right side part of the box body are door expansion structures;
the air inlet pipeline is provided with a pressure taking port with a valve for locking;
the air inlet and outlet at the upper part of the box body are sealed by adopting a water retaining composite board;
a shutter air-diffusing window is arranged at the side part and the bottom of the box body;
the lateral part of box still is equipped with the 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 CN107228695A (en) | 2017-10-03 |
| CN107228695B true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (9)
| 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 |
| CN103890551A (en) * | 2011-10-12 | 2014-06-25 | 液体比重计有限公司 | Gas meter |
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010051594B4 (en) * | 2010-11-16 | 2013-04-11 | Hydrometer Gmbh | gas Meter |
| EP2813824B1 (en) * | 2013-06-12 | 2019-04-17 | Itron GmbH | Gas meter and particle trap |
| JP6330141B2 (en) * | 2014-02-07 | 2018-05-30 | パナソニックＩｐマネジメント株式会社 | Gas flow meter |
-
2017
- 2017-07-05 CN CN201710544233.1A patent/CN107228695B/en active Active
Patent Citations (9)
| 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 |
| CN103890551A (en) * | 2011-10-12 | 2014-06-25 | 液体比重计有限公司 | Gas meter |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107228695A (en) | 2017-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107228695B (en) | Integrated gas roots flowmeter box | |
| CN214893872U (en) | Pump station packing box detection device that leaks | |
| CN207964185U (en) | A kind of door and window physical property detection device | |
| CN210196583U (en) | Exhaust valve with buffering and filtering device | |
| CN216360765U (en) | Device for preventing water from flowing backwards | |
| CN107167204B (en) | Integrated IC card gas roots flowmeter box | |
| CN201672132U (en) | Exhaust valve with anti-leakage protection device | |
| CN107990148B (en) | Novel gas pipeline siphon drainage device and method | |
| CN210913827U (en) | High-efficient horizontal reflux tank | |
| CN211215746U (en) | Pipeline filter | |
| CN203425628U (en) | Self-cleaning steam filter | |
| CN203123678U (en) | Backflow preventer | |
| CN202778044U (en) | Emptying structure of lock ring type quick-opening filter | |
| CN206990037U (en) | Integrated gas rotz flowmeter measuring tank | |
| CN201429531Y (en) | Uninterrupted gas sampling device of transformer | |
| CN117489318B (en) | Fracturing manifold with multistage filtering structure and adjustable mounting device thereof | |
| CN218480244U (en) | Novel block valve | |
| CN219161383U (en) | High-rise water meter convenient to overhaul | |
| CN205534811U (en) | Mounting instrument valve of exempting from to stop work | |
| CN204758238U (en) | Diesel engine packing box leakproofness detection device | |
| CN218718944U (en) | Valve with filter | |
| CN215177958U (en) | Flowmeter convenient to disassemble and clean | |
| CN221034258U (en) | Composite exhaust valve with monitoring function | |
| CN215762499U (en) | High-efficient hydraulic power unit | |
| CN213448814U (en) | External closed sewage lifting device with back flush |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |