CN104340556B - Liquid level measuring device for liquid storage measuring tank - Google Patents
Liquid level measuring device for liquid storage measuring tank Download PDFInfo
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- CN104340556B CN104340556B CN201410591093.XA CN201410591093A CN104340556B CN 104340556 B CN104340556 B CN 104340556B CN 201410591093 A CN201410591093 A CN 201410591093A CN 104340556 B CN104340556 B CN 104340556B
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- liquid
- flange
- liquid level
- liquid storage
- oil
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention relates to the technical field of liquid level measuring devices for tank bodies, particularly to a liquid level measuring device for a liquid storage measuring tank. The measuring device comprises a liquid storage measuring tank body, a liquid level sensor, a transmission line and a liquid level displayer, wherein a produced liquid inlet which is communicated with the inner part of the liquid storage measuring tank body is formed in the liquid storage measuring tank body, a measuring opening which is communicated with an inner cavity of the liquid storage measuring tank body is formed in the right side of the lower part of the liquid storage measuring tank body, the liquid level sensor is fixedly mounted on the measuring opening, a data output interface is arranged on the liquid level sensor, and a data input interface is arranged on the liquid level displayer. The structure of the measuring device is reasonable and compact, the operation is simple and convenient, the time and the labor are saved, an operator can be away from the positions such as a measuring opening from which hydrogen sulfide is likely to overflow, the generated potential safety hazard can be eliminated, and the operational safety is improved; besides, an oil-water separator and a water storage pond are additionally arranged to improve the purity of the produced liquid in the liquid storage measuring tank, so that the liquid level height of produced oil in the produced liquid is improved, the measurement is more accurate, at the same time, the water is recycled, and the resources are saved.
Description
Technical field
The present invention relates to tank liquid level measuring device technical field, is a kind of liquid storage measuring tank liquid level emasuring device.
Background technology
In formation testing production scene, each hour is required to measure the Liquid output in this hour, due to the metering of onsite application
High about 2.5 meters to 2.8 meters or so of tank, workmen generally need to estimate liquid level using measuring scale to tank deck.The measurement
There is artificial range estimation error greatly in process, measure inaccurate problem.And due to being often possible to contain hydrogen sulfide in well, sulfuration
Hydrogen will be entered in liquid storage measuring tank body with production fluid；And when workmen carries out level gauging, need to open dip hatch, this
When hydrogen sulfide in liquid storage measuring tank body will be overflowed by dip hatch, be easily caused workmen's hydrogen sulfide poisoning, here
In the case of, even if workmen wears protective garment, there is also larger potential safety hazard.
In addition, production fluid is directly inputted in liquid storage measuring tank body by output channel at present, which mostly is oil mixing with water, and
Ratio differs, it is difficult to accurately measure the true altitude of the yield of crude oil yield and water, causes its measurement result inaccurate.
The content of the invention
The invention provides a kind of liquid storage measuring tank liquid level emasuring device, overcomes the deficiency of above-mentioned prior art, its energy
The error that the existing production fluid liquid level measurement of effectively solving is present is big, and measurement is inaccurate, there is potential safety hazard.
The technical scheme is that by following measures to realize：A kind of liquid storage measuring tank liquid level emasuring device, bag
Liquid storage metering tank body, liquid level sensor, transmission line and height displaying instrument are included, has the product communicated with inside which on liquid storage metering tank body
Liquid import, has on the right side of the bottom of liquid storage metering tank body and measures the measurement mouth that tank inner chamber is communicated with liquid storage, fixed peace on measurement mouth
Equipped with liquid level sensor, on liquid level sensor, there is data output interface, on height displaying instrument, have Data Input Interface, data output
It is electrically connected by transmission line between interface and Data Input Interface.
The further optimization and/or improvements to foregoing invention technical scheme are presented herein below：
It is above-mentioned to may also include cistern and oil water separator；There are the water inlet communicated with its inner chamber, profit point on cistern
Inlet, discharge outlet and oil-out are distributed with device；The left bottom of liquid storage metering tank body has what is communicated with its inner chamber to go out liquid
Mouthful, the upper left-hand of liquid storage metering tank body has the oil return opening communicated with its inner chamber；Liquid outlet is communicated with inlet and is fixedly mounted
Together, oil-out is communicated with oil return opening and is fixedly installed togather, and water inlet is communicated with discharge outlet and is fixedly installed togather.
Feed pathway, drainage channel and oil discharge passage can be respectively fixed with above-mentioned inlet, discharge outlet and oil-out, be entered
Feed liquor flange, drainage flange and fuel-displaced flange are respectively fixed with liquid passage, drainage channel and oil discharge passage；Liquid outlet and oil return
Mouth is respectively fixed with liquid outlet channel and drainback passage, and liquid flange and oil return method are respectively fixed with out on liquid outlet channel and drainback passage
It is blue；Go out liquid flange to be fixedly installed togather by connecting bolt and be provided with seal washer between the two with feed liquor flange；Go out oil process
It is provided with oil return pipe between blue and oil return flange, oil return pipe is respectively fixed at two ends with oil return adpting flange, two oil return connection methods
Orchid is fixedly installed togather by connecting bolt with corresponding fuel-displaced flange and oil return flange respectively, and adjacent is set between the two
There is seal washer；Drain pipe is provided between water inlet and drainage flange, one end of drain pipe is fixed with draining adpting flange, draining
Adpting flange and drainage flange are fixedly installed togather by connecting bolt and are provided with seal washer between the two, drain pipe it is another
One end is located in water inlet.
Above-mentioned liquid level sensor can be diaphragm type liquid level sensor, be fixed with Measurement channel on measurement mouth, Measurement channel
Right-hand member is fixed with measurement adpting flange, and sensor mounting flange, measurement adpting flange and sensor are fixed with liquid level sensor
Mounting flange is fixedly installed togather by connecting bolt and is provided with seal washer between the two.
Protection steel pipe can be set with the outside of above-mentioned transmission line, on protection steel pipe, Duct fixing clamp is intervally distributed with.
The upper left-hand of above-mentioned cistern can have the upper shed communicated with inside which, and capable of opening and closing top is provided with upper shed
Lid, water inlet are located on top cover, and are had on top cover and can be seen observation panel inside cistern；The water-retention of correspondence top cover right positions
It has been sequentially distributed oil water separator, liquid storage metering tank body, diaphragm type liquid level sensor, protection steel pipe and liquid on the upside of pond from left to right
Position display instrument, between the bottom of oil water separator and the upside of cistern, seat has separator support, liquid storage metering tank body and diaphragm
Formula liquid level sensor seat protects steel pipe that the top of cistern, liquid level are fixedly mounted on by Duct fixing clamp in the top of cistern
Between the bottom of display instrument and the upside of cistern, seat has display instrument support.
On above-mentioned display instrument support can seat cover on the outside of height displaying instrument and capable of opening and closing shield.
Present configuration is reasonable and compact, easy to use, and which is set up liquid level sensor and can carry out real-time monitoring to its liquid level,
And be displayed on height displaying instrument by transmission line, make workmen check that liquid storage measures the liquid of tank body by height displaying instrument
Position, and the Liquid output of interval time is calculated by liquid level difference twice；The process operation is simple and convenient, time saving and energy saving, can make
Operator may overflow the position of hydrogen sulfide away from measurement mouth etc., eliminate the potential safety hazard thus brought, improve the peace of the operation
Quan Xing；Oil water separator is set up in addition and cistern can improve the purity of production fluid in liquid storage measuring tank body, so as to improve output
The liquid level of output oil in liquid so as to which measurement is more accurate, while Water Sproading is recycled, economizes on resources.
Description of the drawings
Main view broken section structural representation of the accompanying drawing 1 for preferred embodiment.
Overlooking the structure diagram of the accompanying drawing 2 for accompanying drawing 1.
Exploded perspective structural representation of the accompanying drawing 3 for accompanying drawing 1.
Accompanying drawing 4 is partial enlargement structural representation of the accompanying drawing 1 at A.
Accompanying drawing 5 is the three-dimensional mplifying structure schematic diagram of oil water separator in accompanying drawing 1.
Accompanying drawing 6 is the partial enlargement structural representation in accompanying drawing 3 at the B.
Accompanying drawing 7 is the three-dimensional mplifying structure schematic diagram of oil return pipe in accompanying drawing 1.
Coding in accompanying drawing is respectively：1 is that liquid storage measures tank body, and 2 is liquid level sensor, and 3 is transmission line, and 4 is aobvious for liquid level
Show instrument, 5 are measurement mouth to produce liquid import, 6, and 7 is data output interface, and 8 is cistern, and 9 is oil water separator, and 10 are water inlet
Mouthful, 11 is feed pathway, and 12 is drainage channel, and 13 is oil discharge passage, and 14 is feed liquor flange, and 15 is drainage flange, and 16 is fuel-displaced
Flange, 17 is liquid outlet channel, and 18 is drainback passage, and 19 is liquid flange, and 20 is oil return flange, and 21 is oil return pipe, and 22 is oil return
Adpting flange, 23 is Measurement channel, and 24 are measurement adpting flange, and 25 is sensor mounting flange, and 26 are protection steel pipe, and 27 is solid
Fixed tube is pressed from both sides, and 28 is top cover, and 29 is observation panel, and 30 is display instrument support, and 31 is shield, and 32 is seal washer, and 33 is drain pipe.
Specific embodiment
The present invention is not limited by following embodiments, can technology according to the present invention scheme and practical situation determining specifically
Embodiment.
In the present invention, for the ease of description, the description of the relative position relation of each part is according to Figure of description 1
Butut mode being described, such as：The position relationship of forward and backward, upper and lower, left and right etc. is the Butut according to Figure of description
Direction is determining.
With reference to embodiment and accompanying drawing, the invention will be further described：
As shown in accompanying drawing 1 to 7, the liquid storage measuring tank liquid level emasuring device include liquid storage metering tank body 1, liquid level sensor 2,
Transmission line 3 and height displaying instrument 4, have the product liquid import 5 communicated with inside which on liquid storage metering tank body 1, liquid storage metering tank body 1
Have on the right side of bottom and the measurement mouth 6 that 1 inner chamber of tank body is communicated is measured with liquid storage, be installed with liquid level sensor 2, liquid on measurement mouth 6
There is data output interface 7 on level sensor 2, on height displaying instrument 4, have Data Input Interface, data output interface 7 and data are defeated
It is electrically connected by transmission line 3 between incoming interface.When in use, production fluid can be produced liquid import by output channel connection
5, thus by production fluid input liquid storage metering tank body 1, liquid level sensor 2 can carry out real-time monitoring to its liquid level, and by passing
Defeated line 3 is displayed on height displaying instrument 4, and now workmen can pass through the liquid that height displaying instrument 4 checks liquid storage metering tank body 1
Position, and the Liquid output of interval time is calculated by liquid level difference twice.The process operation is simple and convenient, time saving and energy saving, can make
Operator may overflow the position of hydrogen sulfide away from measurement 6 grade of mouth, eliminate the potential safety hazard thus brought, improve the peace of the operation
Quan Xing.According to demand, liquid storage metering tank body 1, liquid level sensor 2 and height displaying instrument 4 can adopt existing known technology.
According to actual needs above-mentioned liquid storage measuring tank liquid level emasuring device can be made further optimization and/or improvements：
As shown in accompanying drawing 1 to 7, also including cistern 8 and oil water separator 9；Have on cistern 8 and entering that its inner chamber is communicated
The mouth of a river 10, is distributed with inlet, discharge outlet and oil-out on oil water separator 9；The left bottom of liquid storage metering tank body 1 has and which
The liquid outlet that inner chamber is communicated, the upper left-hand of liquid storage metering tank body 1 have the oil return opening communicated with its inner chamber；Liquid outlet and inlet
Communicate and be fixedly installed togather, oil-out is communicated with oil return opening and is fixedly installed togather, water inlet 10 is communicated with discharge outlet
And be fixedly installed togather.In use, liquid storage metering tank body 1 adopts existing known technology, is equipped with its liquid outlet
Ball-cock assembly, and can be turned on and off according to the profit delamination in liquid storage metering tank body 1；As production fluid mostly is oil mixing with water
Thing, wherein oil is different with the density of water and immiscible, can produce upper lower leaf after production fluid is entered in liquid storage metering tank body 1
Phenomenon, and oil reservoir be located at water layer top, when water layer reach it is a certain amount of after will open ball-cock assembly, the liquid of water layer will pass through
Liquid mouth is flowed out in inlet, and as physical layering is not thorough, by containing a small amount of oil, this is a small amount of for the liquid in water layer
Oil will be separated by oil water separator 9 after Jing oil-outs and oil return opening enter in liquid storage metering tank body 1, and pass through oil-water separation
The water that device 9 is isolated enters Jing discharge outlet and water inlet 10 in cistern 8, thus can improve output in liquid storage metering tank body 1
The purity of liquid, so as to improve the liquid level of output oil in production fluid so as to which measurement is more accurate, while Water Sproading is sharp again
With economizing on resources.
As shown in accompanying drawing 1 to 7, feed pathway 11, drainage channel 12 on inlet, discharge outlet and oil-out, are respectively fixed with
With oil discharge passage 13, on feed pathway 11, drainage channel 12 and oil discharge passage 13, feed liquor flange 14, drainage flange is respectively fixed with
15 and fuel-displaced flange 16；Liquid outlet and oil return opening are respectively fixed with liquid outlet channel 17 and drainback passage 18, liquid outlet channel 17 and return
Liquid flange 19 and oil return flange 20 are respectively fixed with out on oily passage 18；Go out liquid flange 19 and pass through connecting bolt with feed liquor flange 14
It is fixedly installed togather and is provided with seal washer between the two；Oil return pipe 21 is provided between fuel-displaced flange 16 and oil return flange 20,
Oil return pipe 21 is respectively fixed at two ends with oil return adpting flange 22, two oil return adpting flanges 22 respectively with corresponding fuel-displaced flange
16 and oil return flange 20 be fixedly installed togather by connecting bolt, and adjacent be provided with seal washer between the two；Water inlet
Drain pipe 33 is provided between 10 and drainage flange 15, one end of drain pipe 33 is fixed with draining adpting flange, draining adpting flange
Seal washer, the other end of drain pipe 33 are fixedly installed togather and are provided between the two with drainage flange 15 by connecting bolt
In water inlet 10.The sealing of flow process is can ensure that by setting up seal washer.
As shown in accompanying drawing 1 to 7, liquid level sensor 2 is diaphragm type liquid level sensor, is fixed with Measurement channel on measurement mouth 6
23, the right-hand member of Measurement channel 23 is fixed with measurement adpting flange 24, and sensor mounting flange 25 is fixed with liquid level sensor 2,
Measurement adpting flange 24 and sensor mounting flange 25 are fixedly installed togather by connecting bolt and are provided with sealing between the two
Packing ring 32.The characteristics of diaphragm type liquid level sensor has high sensitivity, high accuracy, high stability energy, so as to improve certainty of measurement,
Reduce error.
As shown in accompanying drawing 1 to 7,3 outer sheath of transmission line is intervally distributed with fixation on protection steel pipe 26 equipped with protection steel pipe 26
Pipe clamp 27.In use, protection steel pipe 26 is fixed on into predeterminated position by Duct fixing clamp 27, so that it is guaranteed that protection steel pipe
26 arbitrarily will not move, and thus protect steel pipe 26 shield to transmission line 3, effectively prevent which to be damaged.
As shown in accompanying drawing 1 to 7, the upper left-hand of cistern 8 has the upper shed communicated with inside which, is provided with upper shed
Capable of opening and closing top cover 28, water inlet 10 are located on top cover 28, and are had on top cover 28 and can be seen observation panel 29 inside cistern 8；
It has been sequentially distributed oil water separator 9, liquid storage metering tank body 1, liquid on the upside of the cistern 8 of correspondence 28 right positions of top cover from left to right
Level sensor 2, protection steel pipe 26 and height displaying instrument 4, between the bottom of oil water separator 9 and the upside of cistern 8, seat has point
From device support, 2 tops in cistern 8 of liquid storage metering tank body 1 and liquid level sensor, protection steel pipe 26 pass through Duct fixing clamp 27
The top of cistern 8 is fixedly mounted on, seat has display instrument support 30 between the bottom of height displaying instrument 4 and the upside of cistern 8.
According to demand, the height of separator support can make the position of the discharge outlet of oil water separator 9 higher than the position of water inlet 10, so
Draining can be made more laborsaving；Display instrument support 30 can be Height Adjustable support, can so be easy to observer to be adjusted
To rational position so as to observe convenient.
As shown in accompanying drawing 1 to 7,30 seat of honour of display instrument support is covered on the outside of height displaying instrument 4 and capable of opening and closing shield 31.
Height displaying instrument 4 can be so protected, extends its service life.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and which has stronger adaptability and optimal enforcement effect
Really, non-essential technical characteristic can be increased and decreased according to actual needs, meets the demand of different situations.
Claims (5)
1. a kind of liquid storage measuring tank liquid level emasuring device, it is characterised in that including liquid storage metering tank body, liquid level sensor, transmission line
And height displaying instrument, there is the product liquid import communicated with inside which on liquid storage metering tank body, have on the right side of the bottom of liquid storage metering tank body
The measurement mouth that tank inner chamber is communicated is measured with liquid storage, liquid level sensor is installed with measurement mouth, is had number on liquid level sensor
According to output interface, on height displaying instrument, there is Data Input Interface, by transmission between data output interface and Data Input Interface
Line is electrically connected；Wherein：Also include cistern and oil water separator；There is the water inlet communicated with its inner chamber on cistern,
Inlet, discharge outlet and oil-out are distributed with oil water separator；The left bottom of liquid storage metering tank body is had and is communicated with its inner chamber
Liquid outlet, liquid storage metering tank body upper left-hand have the oil return opening communicated with its inner chamber；Liquid outlet is communicated with inlet and is consolidated
Dingan County is fitted together, and oil-out is communicated with oil return opening and is fixedly installed togather, and water inlet is communicated with discharge outlet and fixedly mounted
Together；Transmission line outer sheath is intervally distributed with Duct fixing clamp on protection steel pipe equipped with protection steel pipe；The upper left-hand of cistern
There is the upper shed communicated with inside which, capable of opening and closing top cover is installed in upper shed, water inlet is located on top cover, and is had on top cover
The observation panel inside cistern can be seen；Profit point has been sequentially distributed from left to right on the upside of the cistern of correspondence top cover right positions
From device, liquid storage metering tank body, liquid level sensor, protection steel pipe and height displaying instrument, bottom and the cistern of oil water separator
Between upside, seat has separator support, liquid storage metering tank body and liquid level sensor seat in the top of cistern, and protection steel pipe passes through
Duct fixing clamp is fixedly mounted on the top of cistern, and between the bottom of height displaying instrument and the upside of cistern, seat has display instrument
Frame.
2. liquid storage measuring tank liquid level emasuring device according to claim 1, it is characterised in that inlet, discharge outlet and fuel-displaced
Feed pathway, drainage channel and oil discharge passage are respectively fixed with mouthful, it is solid respectively on feed pathway, drainage channel and oil discharge passage
Surely there are feed liquor flange, drainage flange and fuel-displaced flange；Liquid outlet and oil return opening are respectively fixed with liquid outlet channel and drainback passage, go out
Liquid flange and oil return flange are respectively fixed with out on liquid passage and drainback passage；Go out liquid flange and pass through connecting bolt with feed liquor flange
It is fixedly installed togather and is provided with seal washer between the two；Oil return pipe, oil return pipe are provided between fuel-displaced flange and oil return flange
Be respectively fixed at two ends with oil return adpting flange, two oil return adpting flanges are logical with corresponding fuel-displaced flange and oil return flange respectively
Cross connecting bolt to be fixedly installed togather, and adjacent be provided with seal washer between the two；Set between water inlet and drainage flange
The one end for having drain pipe, drain pipe is fixed with draining adpting flange, and draining adpting flange is solid by connecting bolt with drainage flange
Dingan County is fitted together and is provided between the two seal washer, and the other end of drain pipe is located in water inlet.
3. liquid storage measuring tank liquid level emasuring device according to claim 1 and 2, it is characterised in that liquid level sensor is diaphragm
Formula liquid level sensor, is fixed with Measurement channel on measurement mouth, and the right-hand member of Measurement channel is fixed with measurement adpting flange, level sensing
Sensor mounting flange is fixed with device, measurement adpting flange and sensor mounting flange are fixedly mounted on one by connecting bolt
Rise and be provided with seal washer between the two.
4. liquid storage measuring tank liquid level emasuring device according to claim 1 and 2, it is characterised in that the display instrument support seat of honour has
Cover on the outside of height displaying instrument and capable of opening and closing shield.
5. liquid storage measuring tank liquid level emasuring device according to claim 3, it is characterised in that there is cover at the display instrument support seat of honour
On the outside of height displaying instrument and capable of opening and closing shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410591093.XA CN104340556B (en) | 2014-10-29 | 2014-10-29 | Liquid level measuring device for liquid storage measuring tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410591093.XA CN104340556B (en) | 2014-10-29 | 2014-10-29 | Liquid level measuring device for liquid storage measuring tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104340556A CN104340556A (en) | 2015-02-11 |
| CN104340556B true CN104340556B (en) | 2017-05-17 |
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ID=52497134
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410591093.XA Expired - Fee Related CN104340556B (en) | 2014-10-29 | 2014-10-29 | Liquid level measuring device for liquid storage measuring tank |
Country Status (1)
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| CN (1) | CN104340556B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564860B (en) * | 2016-02-02 | 2019-03-12 | 珠海格力智能装备有限公司 | Vehicle urea solution storage device, processing system and liquid level control method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2134220Y (en) * | 1992-09-04 | 1993-05-26 | 张国瑞 | Water cutting device for oil product storage tank |
| CN2563124Y (en) * | 2002-07-12 | 2003-07-30 | 中国石油天然气股份有限公司 | Automatic control device for oil tank dehydration |
| CN200968870Y (en) * | 2006-11-01 | 2007-10-31 | 佛山市海天调味食品有限公司 | High precision liquid constant volume apparatus |
| CN103376142A (en) * | 2012-04-29 | 2013-10-30 | 刘铮 | Single chip microcomputer based weighing type liquid level meter |
| CN202836676U (en) * | 2012-08-15 | 2013-03-27 | 河南东风汽车油品有限公司 | Liquid-level sensor |
| CN203211820U (en) * | 2013-03-29 | 2013-09-25 | 龙岩烟草工业有限责任公司 | Oil pressure monitoring device for oil storage tank of oil pool of combustion furnace for cut tobacco drying |
| CN204223559U (en) * | 2014-10-29 | 2015-03-25 | 中国石油集团西部钻探工程有限公司 | Liquid storage dump tank liquid level emasuring device |
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2014
- 2014-10-29 CN CN201410591093.XA patent/CN104340556B/en not_active Expired - Fee Related
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| CN104340556A (en) | 2015-02-11 |
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