CN206862562U - A kind of pressure transmitter adjustment structure and pressure transmitter - Google Patents
A kind of pressure transmitter adjustment structure and pressure transmitter Download PDFInfo
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- CN206862562U CN206862562U CN201721139084.2U CN201721139084U CN206862562U CN 206862562 U CN206862562 U CN 206862562U CN 201721139084 U CN201721139084 U CN 201721139084U CN 206862562 U CN206862562 U CN 206862562U
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- adjustment structure
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- 230000004888 barrier function Effects 0.000 claims abstract description 39
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims description 11
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 238000010926 purge Methods 0.000 abstract description 18
- 238000005259 measurement Methods 0.000 abstract description 16
- 238000004140 cleaning Methods 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
Diaphragm pressure transmitter field is the utility model is related to, in particular to a kind of pressure transmitter adjustment structure and pressure transmitter.The utility model provides a kind of pressure transmitter adjustment structure, and it includes main channel, first passage and second channel.Main channel both ends are connected with barrier film flange and root valve respectively.The pressure transmitter adjustment structure, its is simple in construction, easy to use, and is provided simultaneously with the function of cleaning purging and zeroing.The utility model additionally provides a kind of pressure transmitter, and it includes transmitter measuring chamber, instrument board and above-mentioned pressure transmitter adjustment structure.The pressure transmitter measurement is accurate, and alleviates labor intensity when staff is cleared up diaphragm membrane.
Description
Technical field
Diaphragm pressure transmitter field is the utility model is related to, in particular to a kind of pressure transmitter adjustment structure
And pressure transmitter.
Background technology
Pressure transmitter is a kind of sensor the most commonly used in industrial practice, and it is widely used in various industrial automatic control rings
Border, be related to water conservancy and hydropower, railway traffic, intelligent building, production automatic control, Aero-Space, military project, petrochemical industry, oil well, electric power, ship,
Numerous industries such as lathe, pipeline.Diaphragm pressure is made up of the barrier film table of a system barrier film isolator and universal manometer.
Diaphragm mainly has threaded connection with equipment connection mode and flange is connected and sanitary clamp formula etc..It is strong that table is applied to measurement
Burn into high temperature, high viscosity, easily crystallization, the pressure medium that easily solidifies, have solid floating material and measurement medium must be avoided direct
Into universal manometer and the occasion for preventing sediment accumulation and easy cleaning.
Pressure transmitter septation flange diaphragm in use for some time, can make diaphragm pressure transmitter in the prior art
Zero point produce skew, while influence measurement accuracy and sensitivity.
Utility model content
The purpose of this utility model is, there is provided a kind of pressure transmitter adjustment structure, it includes main channel, first logical
Road and second channel.Main channel both ends are connected with barrier film flange and root valve respectively.The pressure transmitter adjustment structure, its structure
Simply, it is easy to use, and it is provided simultaneously with the function of cleaning purging and zeroing.
Second purpose of the present utility model is, there is provided a kind of pressure transmitter, it includes transmitter measuring chamber, instrument
Dial plate and above-mentioned pressure transmitter adjustment structure.The pressure transmitter measurement is accurate, and alleviates staff to diaphragm membrane
Labor intensity during cleaning.
What embodiment of the present utility model was realized in：
A kind of pressure transmitter adjustment structure, it includes：
Main channel, main channel both ends are connected with barrier film flange plate and root valve respectively；
First passage, first passage one end connect with main channel；First passage is provided with the first valve；
Second channel, second channel one end connect with main channel；Second channel is provided with the second valve, and second channel is located at
First passage is close to the side of barrier film flange plate.
The pressure transmitter adjustment structure, its is simple in construction, easy to use, and is provided simultaneously with cleaning purging and the work(of zeroing
Energy.
In a kind of embodiment of the present utility model：
The one end of first passage away from main channel is connected with vavuum pump.
In a kind of embodiment of the present utility model：
Side of first valve away from main channel also includes subchannel；Subchannel one end connects with first passage；Subchannel
On be provided with the 3rd valve.
In a kind of embodiment of the present utility model：
3rd valve is stop valve.
In a kind of embodiment of the present utility model：
The one end of second channel away from main channel is provided with blowning installation.
In a kind of embodiment of the present utility model：
First valve is ball valve.
In a kind of embodiment of the present utility model：
Barrier film flange plate includes two adpting flanges and diaphragm membrane；Diaphragm membrane is between two adpting flanges.
In a kind of embodiment of the present utility model：
Diaphragm membrane is made up of resistant material.
A kind of pressure transmitter, it includes transmitter measuring chamber, instrument board and above-mentioned pressure transmitter adjustment structure；Pressure
Transmitter adjustment structure, transmitter measuring chamber and instrument board are sequentially connected.
The pressure transmitter measurement is accurate, and alleviates labor intensity when staff is cleared up diaphragm membrane.
In a kind of embodiment of the present utility model：
Pressure transmitter also includes amplification electric change deliverer, and amplification electric change deliverer is located at transmitter measuring chamber and instrument
Between dial plate.
The technical solution of the utility model at least possesses following beneficial effect：
The utility model provides a kind of pressure transmitter adjustment structure, and it is logical that it includes main channel, first passage and second
Road.Main channel both ends are connected with barrier film flange and root valve respectively.The pressure transmitter adjustment structure, its is simple in construction, uses
It is convenient, and it is provided simultaneously with the function of cleaning purging and zeroing.
The utility model additionally provides a kind of pressure transmitter, and it includes transmitter measuring chamber, instrument board and above-mentioned pressure
Transmitter adjustment structure.The pressure transmitter measurement is accurate, and the work alleviated when staff is cleared up diaphragm membrane is strong
Degree.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of pressure transmitter adjustment structure in the utility model embodiment 1；
Fig. 2 is the structural representation of the septation flange plate of the utility model embodiment 1；
Fig. 3 is the structural representation of pressure transmitter in the utility model embodiment 2.
In figure：100- pressure transmitter adjustment structures；110- main channels；120- first passages；The valves of 121- first；130-
Second channel；The valves of 131- second；140- subchannels；The valves of 141- the 3rd；150- barrier film flange plates；151- adpting flanges；
153- diaphragm membranes；160- root valves；170- vavuum pumps；180- purges device of air；200- pressure transmitters；210- transmitters are surveyed
Measure room；220- instrument boards.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.In addition, term " the
One ", " second " etc. is only used for distinguishing description, and it is not intended that instruction or hint relative importance.
, it is necessary to explanation in the description of the utility model embodiment, term " interior ", " outer ", " on " etc. instruction
Orientation or position relationship are based on orientation shown in the drawings or position relationship, or are usually put during the utility model product use
The orientation or position relationship put, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
New limitation.
Pressure transmitter is a kind of sensor the most commonly used in industrial practice, and it is widely used in various industrial automatic control rings
Border, be related to water conservancy and hydropower, railway traffic, intelligent building, production automatic control, Aero-Space, military project, petrochemical industry, oil well, electric power, ship,
Numerous industries such as lathe, pipeline.Diaphragm pressure is made up of the barrier film table of a system barrier film isolator and universal manometer.
Diaphragm mainly has threaded connection with equipment connection mode and flange is connected and sanitary clamp formula etc..It is strong that table is applied to measurement
Burn into high temperature, high viscosity, easily crystallization, the pressure medium that easily solidifies, have solid floating material and measurement medium must be avoided direct
Into universal manometer and the occasion for preventing sediment accumulation and easy cleaning.
Pressure transmitter septation flange diaphragm in use for some time, can make diaphragm pressure transmitter in the prior art
Zero point produce skew, while influence measurement accuracy and sensitivity.
According to the deficiencies in the prior art, there is provided embodiment once：
Embodiment 1
With reference to figure 1, a kind of pressure transmitter adjustment structure 100 of micropore the present embodiment offer in figure, it includes main channel
110th, first passage 120 and second channel 130.
Pipeline of the main channel 110 as pressure transmitter, its both ends connect with barrier film flange plate 150 and root valve 160 respectively
Connect.The one end of root valve 160 away from barrier film flange plate 150 connects with measurement medium, and the pressure change for measuring medium passes through main lead to
Road 110 influences barrier film flange plate 150 for monitoring.
The one end of first passage 120 is connected with main channel 110, and the first valve 121 is provided with first passage 120.Second is logical
The one end of road 130 connects with main channel 110, and second channel 130 is provided with the second valve 131, and second channel 130 is located at first passage
120 close to the side of barrier film flange plate 150.
First passage 120 is in use with second channel 130, and main channel 110 is evacuated and ventilated respectively, to pressure
Transmitter is according to being actually needed the work that purged and returned to zero.Its is simple in construction, easy to use.
In the present embodiment, in order to preferably realize purging and zeroing work, first passage 120 is away from main channel 110
One end is connected with vavuum pump 170.Vavuum pump 170 refers to be evacuated to being taken out container using machinery, method physically or chemically
And obtain the device or equipment of vacuum.For popular, vavuum pump 170 is to be improved with various methods in a certain closing space, produced
Device that is raw and maintaining vacuum.By the operation principle of vavuum pump 170, vavuum pump 170 can substantially be divided into two types, i.e. gas
Body traps pump and gas transmission pump.The equipment common as this area of vavuum pump 170, is not repeated excessively herein.Need what is illustrated
It is that in other specific implementations take mode, above-mentioned vavuum pump 170 can also be substituted using aspiration pump.
Above-mentioned vavuum pump 170 mainly uses in work is purged, and is necessarily born because it be able to can be formed in first passage 120
Pressure, if using the vavuum pump 170 in zeroing, the difficulty of zeroing may be increased.Therefore in order to ensure the accuracy of zeroing, at this
In embodiment, the first side of the valve 121 away from main channel 110 also includes subchannel 140, and the one end of subchannel 140 is logical with first
Road 120 connects.In addition, in order to ensure that subchannel 140 will not impact to the work of vavuum pump 170 when purging work,
In the present embodiment, the 3rd valve 141 is additionally provided with subchannel 140.By the break-make of the 3rd valve 141, to control subchannel 140
Pass through the connection and disconnection of first passage 120 and main channel 110.
The 3rd valve 141 selects stop valve in the present embodiment, and it belongs to forced seal formula valve, so being closed in valve
When, it is necessary to apply pressure to flap, do not leaked with forced seal face.When medium below flap by entering valve, operating physical force institute
The resistance overcome is needed, is the frictional force of valve rod and filler and thrust, the Li Bikai of closing valve as caused by the pressure of medium
The power of valve is big, so the diameter of valve rod is big, the failure of valve rod bending otherwise can occur.It is divided into three kinds by connected mode：Method
Blue connection, screwed connection, it is welded to connect.Subchannel 140 is fixed in using flange connection in the present embodiment.Need to illustrate
, in other embodiments, according to actual needs, the 3rd valve 141 can also be butterfly valve or ball valve.
Further, in purging at work, it is necessary to be ventilated using second channel 130 into main channel 110 at this
In embodiment, the one end of second channel 130 away from main channel 110 is provided with purging device of air 180.In addition purging device of air 180 can
To be substituted with devices such as air blower or air pumps, when needing to carry out purge operations, the valve 141 of root valve 160 and the 3rd is closed, is beaten
The second valve 131 and the first valve 121 are opened, device of air 180 and vavuum pump 170 are purged all in working condition, with to diaphragm process
Blue piece 150 is purged.
Control first passage 120 identical with the structure of the second valve 131 with the first valve 121 of second channel 130, in this reality
Apply in example, the first valve 121 and the second valve 131 are all ball valve.The opening and closing element (spheroid) of ball valve is driven by valve rod, and around ball valve
The valve that axis rotates.Also it can be used for the regulation and control of fluid, wherein sealing its V-type core of V-type ball valve and heap firmly
There is very strong shearing force, Jie especially suitable for fibre-bearing, small solid pellet etc. between the metal seat valve of weldering hard alloy
Matter.It should be noted that in other embodiments, the first valve 121 and the second valve 131 can also be butterfly valve, this
Outside, the first valve 121 and the second valve 131 can also be different valve mechanisms.
With reference to figure 2, in the present embodiment, the barrier film flange plate 150 in pressure transmitter adjustment structure 100 includes two companies
Acting flange 151 and barrier film film 153, barrier film film 153 is between two adpting flanges 151.Pass through the barrier film film 153
Change, to detect and react by other equipment, embody the change of pressure.Because pressure transmitter is used for strong corruption in the present embodiment
In the pressure test for losing medium, to ensure the normal use of barrier film film 153, barrier film film 153 is made from resistant material.
316L stainless steels are selected according to actual conditions in the present embodiment, it possesses good decay resistance.It is in addition, specific real at other
Apply in mode, according to actual needs, the material of above-mentioned barrier film film 153 can also be C series Hastelloy or have pole
The tantalum of high corrosion resistance is made.
Barrier film film 153 on barrier film flange plate 150 is in use for some time due to the chemical form knot of measurement medium
Brilliant and measurement medium impurity etc. can be attached on barrier film film 153, the zero point of pressure transmitter is produced skew, simultaneously
Influence the accuracy and sensitivity of measurement, it is therefore desirable to barrier film film 153 is cleaned, maintained, it is necessary to takes barrier film flange apart
The firm bolt of piece 150, barrier film film is cleaned for 153 using the pressure transmitter adjustment structure 100 in the present embodiment, and
Zero point check and correction is carried out after being installed in place.
Therefore a kind of pressure transmitter adjustment structure 100 in the present embodiment so works：
Cleaning purging work：The valve 141 of root valve 160 and the 3rd is first shut off, opens the first valve 121 and the second valve
Door 131, then start vavuum pump 170 and purging device of air 180.To barrier film film, 153 carry out cleaning purging, second channel 130
Purge gass are passed through main channel 110 and purged, the impurity after purging is discharged by first passage 120.
Zeroing work：First choice closes the valve 131 of root valve 160 and second；Open the first valve 121 and the 3rd valve
141, and vavuum pump 170 and purging device of air 180 are closed.To being returned to zero on the pressure transmitter.
A kind of pressure transmitter adjustment structure 100 in the present embodiment, its is simple in construction, easy to use, and is provided simultaneously with
Cleaning purging and the function of zeroing.
Embodiment 2
With reference to figure 3, in figure for the present embodiment provide a kind of pressure transmitter 200, it include transmitter measuring chamber 210,
A kind of pressure transmitter adjustment structure 100 in instrument board 220 and embodiment 1.Pressure transmitter adjustment structure 100 includes main logical
Road 110, first passage 120 and second channel 130.Pipeline of the main channel 110 as pressure transmitter 200, its both ends respectively with
Barrier film flange plate 150 and root valve 160 connect.The one end of root valve 160 away from barrier film flange plate 150 connects with measurement medium,
Measure the pressure change of medium influences barrier film flange plate 150 for monitoring by main channel 110.The one end of first passage 120 and master
Passage 110 is connected, and the first valve 121 is provided with first passage 120.The one end of second channel 130 connects with main channel 110, the
Two passages 130 are provided with the second valve 131, and second channel 130 is located at first passage 120 close to the side of barrier film flange plate 150.
The transmitter measuring chamber 210 of pressure transmitter adjustment structure 100 and instrument board 220 are sequentially connected.Barrier film in use
153 pressure for bearing medium of film, and by the capillary full of silicone oil by pressure conduction to transmitter measuring chamber 210.
For the signal that the pressure signal conversion of more preferable barrier film film 153 is intuitively observed for ease of staff, at this
Pressure transmitter 200 also includes amplification electric change deliverer in embodiment, and amplification electric change deliverer is located at transmitter measuring chamber
Between 210 and instrument board 220.It should be noted that in other embodiments, according to actual needs, can not
Set above-mentioned amplification electric change deliverer.
Finally embodied in treated signal on instrument board 220.Pressure transmitter 200 in use is inaccurate in measurement
Or when needing zeroing, pressure transmitter 200 is adjusted using pressure transmitter adjustment structure 100.
The pressure transmitter 200 measures accurately, and work when alleviating staff to the cleaning of barrier film film 153 is strong
Degree.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. pressure transmitter adjustment structure, it is characterised in that including：Main channel, the main channel both ends are connected with barrier film flange plate and root valve respectively；First passage, described first passage one end connect with the main channel；The first passage is provided with the first valve；Second channel, described second channel one end connect with the main channel；The second channel is provided with the second valve, described Second channel is located at the first passage close to the side of the barrier film flange plate.
- A kind of 2. pressure transmitter adjustment structure according to claim 1, it is characterised in that：The one end of the first passage away from the main channel is connected with vavuum pump.
- A kind of 3. pressure transmitter adjustment structure according to claim 2, it is characterised in that：The side of first valve away from the main channel also includes subchannel；Described subchannel one end and the first passage Connection；The 3rd valve is provided with the subchannel.
- A kind of 4. pressure transmitter adjustment structure according to claim 3, it is characterised in that：3rd valve is stop valve.
- A kind of 5. pressure transmitter adjustment structure according to claim 1, it is characterised in that：The one end of the second channel away from the main channel is provided with blowning installation.
- A kind of 6. pressure transmitter adjustment structure according to claim 1, it is characterised in that：First valve is ball valve.
- A kind of 7. pressure transmitter adjustment structure according to claim 1, it is characterised in that：The barrier film flange plate includes two adpting flanges and diaphragm membrane；The diaphragm membrane is located at two adpting flanges Between.
- A kind of 8. pressure transmitter adjustment structure according to claim 7, it is characterised in that：The diaphragm membrane is made up of resistant material.
- A kind of 9. pressure transmitter, it is characterised in that：The pressure transmitter includes any one described pressure in transmitter measuring chamber, instrument board and the claims 1-6 Transmitter adjustment structure；The pressure transmitter adjustment structure, the transmitter measuring chamber and the instrument board are sequentially connected.
- A kind of 10. pressure transmitter according to claim 9, it is characterised in that：The pressure transmitter also includes amplification electric change deliverer, and the amplification electric change deliverer is surveyed located at the transmitter Measure between room and the instrument board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721139084.2U CN206862562U (en) | 2017-09-06 | 2017-09-06 | A kind of pressure transmitter adjustment structure and pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721139084.2U CN206862562U (en) | 2017-09-06 | 2017-09-06 | A kind of pressure transmitter adjustment structure and pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206862562U true CN206862562U (en) | 2018-01-09 |
Family
ID=60832673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721139084.2U Active CN206862562U (en) | 2017-09-06 | 2017-09-06 | A kind of pressure transmitter adjustment structure and pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206862562U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871440A (en) * | 2018-06-28 | 2018-11-23 | 中国轻工业长沙工程有限公司 | A kind of liquid level and density are online every liquid measuring device |
| WO2024051234A1 (en) * | 2022-09-06 | 2024-03-14 | 重庆四联测控技术有限公司 | Online calibration system and method for pressure transmitter |
-
2017
- 2017-09-06 CN CN201721139084.2U patent/CN206862562U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871440A (en) * | 2018-06-28 | 2018-11-23 | 中国轻工业长沙工程有限公司 | A kind of liquid level and density are online every liquid measuring device |
| CN108871440B (en) * | 2018-06-28 | 2020-06-12 | 中国轻工业长沙工程有限公司 | Liquid level and density online liquid isolation measuring device |
| WO2024051234A1 (en) * | 2022-09-06 | 2024-03-14 | 重庆四联测控技术有限公司 | Online calibration system and method for pressure transmitter |
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Effective date of registration: 20220209 Address after: 611400 No. 445, Qingyun South Road, Puxing street, Xinjin District, Xinjin County, Chengdu, Sichuan Patentee after: Sichuan mintian Technology Development Co.,Ltd. Address before: 610000 Xincai 18th Road, new material industrial functional zone, Xinjin Industrial Park, Xinjin County, Chengdu City, Sichuan Province Patentee before: CHENGDU SHULING TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Effective date of registration: 20240313 Address after: 610000 Xincai 18th Road, new material industrial functional zone, Xinjin Industrial Park, Xinjin County, Chengdu City, Sichuan Province Patentee after: CHENGDU SHULING TECHNOLOGY DEVELOPMENT Co.,Ltd. Country or region after: China Address before: 611400 No. 445, Qingyun South Road, Puxing street, Xinjin District, Xinjin County, Chengdu, Sichuan Patentee before: Sichuan mintian Technology Development Co.,Ltd. Country or region before: China |
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