CN111115042A - Oil weight measuring device of explosion-proof servo oil tank - Google Patents

Oil weight measuring device of explosion-proof servo oil tank Download PDF

Info

Publication number
CN111115042A
CN111115042A CN201811297520.8A CN201811297520A CN111115042A CN 111115042 A CN111115042 A CN 111115042A CN 201811297520 A CN201811297520 A CN 201811297520A CN 111115042 A CN111115042 A CN 111115042A
Authority
CN
China
Prior art keywords
measuring
wheel
meter
explosion
density
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.)
Pending
Application number
CN201811297520.8A
Other languages
Chinese (zh)
Inventor
时大卫
童小海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Shitong Kechuang Technology Co ltd
Original Assignee
Beijing Shitong Kechuang Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Shitong Kechuang Technology Co ltd filed Critical Beijing Shitong Kechuang Technology Co ltd
Priority to CN201811297520.8A priority Critical patent/CN111115042A/en
Publication of CN111115042A publication Critical patent/CN111115042A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/48Arrangements of indicating or measuring devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

The invention relates to an explosion-proof servo oil tank oil weight measuring device which comprises a density measuring meter, a height measuring meter and a processor, wherein the density measuring meter is connected with a traction device, the traction device is installed at the top of an oil tank, the density measuring meter is hung in the oil tank, the height measuring meter is installed at a moving part of the traction device, and the density measuring meter and the height measuring meter are both connected with the processor. The invention has the effect of improving the accuracy of measuring the residual quantity of the oil in the oil tank.

Description

Oil weight measuring device of explosion-proof servo oil tank
Technical Field
The invention relates to the technical field of oil weight measurement in oil tanks, in particular to an anti-explosion servo oil tank oil weight measuring device.
Background
The oil tank is used for the storage, because the oil in the oil tank is because of different pressure and temperature all are different under the co-altitude, and pressure and temperature all influence the density of oil, and the density of position oil is different at different altitudes to when measuring the weight of the oil in the oil tank, it is more difficult.
The patent application publication No. CN107305176A discloses a measurement device for average density of oil in an oil tank, a differential pressure transmitter and a density integrating instrument, wherein the differential pressure transmitter is used for measuring the pressure at the bottom of the oil tank, and the density integrating instrument obtains the average density of the oil through a density calculation formula P = rho gh according to the liquid level height of the oil in the oil tank and the pressure at the bottom of the oil tank.
However, the average sealing value measured by such a density measuring device needs to be established that the density of the oil in the oil tank is uniformly distributed in the height direction, and the weight of the oil obtained after the average density is measured is inaccurate because the density distribution of the oil is not uniformly distributed.
Disclosure of Invention
The invention aims to provide an anti-explosion servo oil tank oil weight measuring device which has the effect of improving the accuracy of measuring the residual quantity of oil in an oil tank.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides an explosion-proof servo oil tank oil weight measuring device, includes density measurement meter, height measurement meter and treater, and the density measurement meter is connected with draw gear, and draw gear installs the top at the oil tank, and the density measurement meter hangs in the oil tank, and the height measurement meter is installed in draw gear's moving part department, and density measurement meter and height measurement meter all connect in the treater.
By adopting the technical scheme, during use, the height positions of the density measuring meter are adjusted up and down under the action of the traction device, the height measuring meter is used for measuring the height of the density measuring meter, the processor calculates, the data of the density measuring meter is simultaneously sent to the processor, the density value of the density measuring meter and the height value of the density measuring meter are combined with the cross section of the oil tank, so that the weight of the oil at the height position of each layer is calculated, the sum of the oil at each layer is the weight of all the oil, and the accuracy of the residual quantity of the oil in the oil tank is improved.
The invention is further configured to: the traction device comprises a body, a winch, a traction line and a driving assembly, wherein the body is fixed at the top of the oil tank, the winch is rotatably supported on the body, the driving assembly is fixed on the body, the output end of the driving assembly is coaxially fixed with the winch, one end of the traction line is wound on the winch, and the other end of the traction line is vertically downward used for being connected with a density meter.
Through adopting above-mentioned technical scheme, drive assembly takes the capstan winch to rotate, and the one end of pulling wire is fixed on the capstan winch to make the winding of pulling wire on the capstan winch, make the lower extreme of pulling wire rise upwards, the opposite density measurement meter is pulling wire upwards, thereby makes the height of density measurement meter adjust.
The invention is further configured to: the pulling wire is a cable, and the lower end of the pulling wire is electrically connected to the density measuring meter; one end of the pulling wire wound on the winch is connected with an electric slip ring, the stator part of the electric slip ring is fixed on the body, the rotor part of the electric slip ring is coaxially fixed with the winch, and the pulling wire is connected to the processor through the electric slip ring.
Through adopting above-mentioned technical scheme, the tractive line is the cable, makes the one end that the density measurement meter was kept away from to the cable connect on the treater through electric slip ring to the signal of telecommunication that makes the density measurement meter passes through on the cable conveyer belt treater.
The invention is further configured to: the driving assembly comprises a machine body, a motor, a driving shaft, a driving gear and a driven gear, wherein the driving shaft is a hollow shaft, the driving shaft is rotatably supported on the machine body, one end of the driving shaft is coaxially fixed with the winch, a rotor part of the electric slip ring is coaxially fixed at one end of the driving shaft, which is far away from the winch, the traction line is arranged at the middle part of the driving shaft in a penetrating manner, the driving gear and the driven gear are bevel gears which are meshed with each other, the driving gear is coaxially fixed at the shaft outlet end of the motor, the motor is.
Through adopting above-mentioned technical scheme, the motor drive driving gear, the driving gear drives driven gear to make the drive shaft rotate, draw and act as go-between and be located the middle part of drive shaft, and separate through electric slip ring, thereby the convenient drive capstan winch winding of motor draws and act as go-between.
The invention is further configured to: the density meter includes a tuning fork vibrating densitometer and a temperature sensor.
Through adopting above-mentioned technical scheme, the density measurement meter includes the tuning fork vibration densimeter, makes the liquid density of density measurement meter position measure, and the temperature sensor who still includes in addition is used for measuring the temperature of survey liquid oil position, through revising the temperature coefficient to further improve the measurement to the weight of oil.
The invention is further configured to: the cross section of the pulling line is rectangular.
Through adopting above-mentioned technical scheme, because the volume of oil tank is great, the cross section of tractive line is the rectangle to the volume of tractive line on winding on the capstan winch is littleer.
The invention is further configured to: the height measuring meter comprises a measuring wheel and a clamping wheel, the axis of the measuring wheel and the axis of the clamping wheel are horizontally arranged, a measuring block is arranged at the edge of the measuring wheel on the end surface of the measuring wheel, a Hall sensor is arranged at the position corresponding to the measuring block, and the Hall sensor is connected to the processor; the side surface of the measuring wheel and the side surface of the clamping wheel are oppositely clamped on the pulling line.
Through adopting above-mentioned technical scheme, measuring wheel and clamp tight round of clamp press from both sides relatively and draw-off the line, draw-off the line when up-and-down motion, draw-off the line and drive measuring wheel and press from both sides tight round of rotation, measuring wheel is when rotating, and the measuring block on the measuring wheel passes through from hall sensor's position, carries out the rotation number of turns of record measuring wheel through hall sensor to reach the movement distance who draws-off the line, make the position that is located the density meter of drawing-off the line lower extreme obtain measuring.
The invention is further configured to: the clamping wheel is connected with a clamping device, the clamping device comprises a support, a guide rod and a spring, the clamping wheel is rotatably supported on the support, the guide rod is fixed on the support, the axis of the guide rod is parallel to the central connecting line of the measuring wheel and the clamping wheel, the spring is sleeved on the guide rod, a guide hole matched with the guide rod is formed in the body, the guide rod is inserted into the guide hole, the spring abuts against the body, and the spring elasticity is used for driving the support to be close to the measuring wheel.
Through adopting above-mentioned technical scheme, the effort of spring is supporting the support, makes the support be close to the position of measuring wheel to install the tight pulley of clamp on the support and extrude to measuring wheel, make measuring wheel and tight pulley clamp tightly draw the line, avoid drawing the slip between line and the measuring wheel, improve the position measurement accuracy to the density meter.
The invention is further configured to: the measuring wheel is a spool, and the edge of the clamping wheel is pressed into an I-shaped opening of the measuring wheel.
By adopting the technical scheme, the measuring wheel is a spool, the wheel edge of the clamping wheel is pressed into the I-shaped opening of the measuring wheel, so that the pulling line positioned between the clamping wheels of the measuring wheel is positioned in the I-shaped opening of the measuring wheel, and the pulling line is prevented from being separated in the movement process.
The invention is further configured to: scales are arranged on the surface of the traction line along the length direction of the traction line.
Through adopting above-mentioned technical scheme, the surface setting of tractive line is followed tractive line length direction's scale, can measure oil tank high position when preliminary adjustment through the scale interval, can make things convenient for the staff to judge tractive line position in addition.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the density measuring meter is arranged in the oil tank and continuously adjusted up and down in the height direction of the oil tank, and the height measuring meter is used for measuring the position of the density measuring meter, so that the quality of oil materials in the oil tank can be accurately measured at different heights, and the measurement accuracy of the oil materials in the oil tank is improved;
2. the density measuring meter comprises a tuning fork type vibration densimeter and a temperature sensor, the temperature sensor and the tuning fork type vibration densimeter simultaneously measure the oil material states of different point positions, and finally, a processor carries out comparison calculation, so that the measuring accuracy of the weight of the oil material in the oil tank is further improved;
3. through setting up the height measurement meter and including measuring wheel and pinch roller to pinch roller is connected with clamping device, makes pinch roller and measuring wheel press from both sides and draws the line, prevents to draw the relative slip between line and the measuring wheel, thereby improves and accurately measures drawing the line height.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the present invention with the oil tank omitted;
fig. 3 is a schematic structural view of the driving assembly of the present invention.
In the figure, 1, a traction device; 11. a body; 12. a cable; 121. calibration; 13. a winch; 14. a drive assembly; 141. a body; 142. a motor; 143. a drive shaft; 144. a driving gear; 145. a driven gear; 2. an oil tank; 3. a density meter; 31. a tuning fork vibrating densitometer; 32. a temperature sensor; 4. a height gauge; 41. a measuring wheel; 42. a pinch wheel; 43. a measuring block; 44. a Hall sensor; 5. a processor; 6. a clamping device; 61. a support; 62. a guide bar; 63. a spring; 64. a guide hole; 7. an electrical slip ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the explosion-proof servo oil tank oil weight measuring device disclosed by the invention comprises a traction device 1, wherein the traction device 1 is arranged at the top of an oil tank 2, the traction device 1 is connected with a density measuring meter 3 extending into the oil tank 2, the density measuring meter 3 moves on the height position of the oil tank 2 under the action of the traction device 1, and the oil density of the position where the density measuring meter 3 is located is measured; the traction device 1 is also connected with a height measuring meter 4, and the height measuring meter 4 is used for measuring the height position of the density measuring meter 3; the height meter 4 and the density meter 3 are both connected with a processor 5. The processor 5 calculates the data of the height gauge 4 and the density gauge 3 and then obtains the mass of the oil in the oil tank 2 according to the cross section of the oil tank 2 itself.
Referring to fig. 1 and 2, towing device 1 includes a body 11, a cable 12, a winch 13, and a drive assembly 14, and density meter 3 includes a tuning fork vibrating densitometer 31 and a temperature sensor 32, both tuning fork vibrating densitometer 31 and temperature sensor 32 being electrically connected to a lower end of cable 12. The cross section of the cable 12 is rectangular, scales 121 are arranged on the surface of the cable 12 along the length direction of the cable 12, one end of the cable 12, far away from the density measuring meter 3, is wound on a winch 13, the body 11 is fixed on the top of the oil tank 2, and the winch 13 is supported on the body 11 in a rotating mode. The driving assembly 14 comprises a machine body 141, a motor 142, a driving shaft 143, a driving gear 144 and a driven gear 145, the machine body 141 and the body 11 are relatively fixed, the driving shaft 143 is a hollow shaft structure, the driving shaft 143 is rotatably supported on the machine body 141, one end of the driving shaft 143 is coaxially fixed at one end of the winch 13, one end of the cable 12 close to the winch 13 is arranged at the central position of the driving shaft 143 in a penetrating way, one end of the driving shaft 143 far away from the winch 13 is provided with an electric slip ring 7, a rotor part of the electric slip ring 7 is coaxially fixed with the driving shaft 143 and connected to the end part of the cable 12, and the cable 12 is connected; the motor 142 is fixed on the machine body 141, the output end of the motor 142 is coaxially fixed with the driving gear 144, the driven gear 145 is coaxially fixed on the driving shaft 143, the driving gear 144 and the driven gear 145 are both bevel gears, the driven gear 145 is meshed with the driving gear 144, the axial line of the motor 142 is perpendicular to the axial line of the driving shaft 143, and the transverse length of the whole structure is shortened.
The motor 142 is started, the motor 142 drives the driving gear 144 to rotate, the driving gear 144 drives the driven gear 145 again, so that the driving shaft 143 drives the winch 13 to rotate, the cable 12 is wound on the winch 13, one end of the cable 12, which is connected to the electric slip ring 7, rotates through the electric slip ring 7, and therefore the height of the density meter 3 fixed at the lower end of the cable 12 can be adjusted through the change of the height of the lower end of the cable 12, and the density and the temperature of the oil at different height positions are transmitted into the processor 5 through the cable 12.
Referring to fig. 3, the height measuring gauge 4 includes a measuring wheel 41 and a clamping wheel 42, the measuring wheel 41 is an i-shaped wheel, the clamping wheel 42 is at the same height as the measuring wheel 41, and the axes of the clamping wheel 42 and the measuring wheel 41 are horizontally arranged, the wheel edge of the measuring wheel 41 is pressed into the i-shaped opening of the measuring wheel 41 so that the side surface of the measuring wheel 41 is opposite to the side surface of the clamping wheel 42, and the cable 12 is clamped between the side surface of the measuring wheel 41 and the side surface of the clamping wheel 42. A clamping device 6 is connected to the clamping wheel 42, and the clamping device 6 is used to drive the clamping wheel 42 toward the measuring wheel 41, so that the clamping wheel 42 and the measuring wheel 41 clamp the cable 12 together.
Referring to fig. 3, the clamping device 6 includes a bracket 61, a guide rod 62 and a spring 63, the clamping wheel 42 is rotatably supported on the bracket 61, the guide rod 62 is fixed on the bracket 61, a guide hole 64 matched with the guide rod 62 is formed on the body 11, the guide rod 62 is inserted in the guide hole 64, the length direction of the guide rod 62 simultaneously passes through the center points of the clamping wheel 42 and the measuring wheel 41, the spring 63 is sleeved on the guide rod 62, one end of the spring 63 abuts against the body 11, the other end abuts against the bracket 61, the elastic direction of the spring 63 drives the guide rod 62 to slide along the guide hole 64 and tends to the direction of the measuring wheel 41, so that the clamping wheel 42 and the measuring wheel 41 clamp the cable 12, and the cable 12 is prevented from sliding with the measuring wheel 41 during the movement process.
Referring to fig. 3, a measuring block 43 is disposed on an end surface of the measuring wheel 41, the measuring block 43 is located at an edge of the measuring wheel 41, the measuring block 43 rotates along with the measuring wheel 41, a hall sensor 44 is further fixed on the body 11, the hall sensor 44 corresponds to the measuring block 43, the measuring block 43 generates a signal to the hall sensor 44 along with the rotation of the measuring wheel 41, the hall sensor 44 is connected with the processor 5, so as to measure the number of rotation turns of the measuring wheel 41, and the height position of the cable 12 is obtained through the number of turns of the measuring wheel 41.
The use process of the anti-explosion servo oil tank oil weight measuring device comprises the following steps:
1. the motor 142 is started, the motor 142 drives the winch 13 to rotate, the upper end of the cable 12 is wound on the winch 13, the cable 12 moves upwards, and the lower end of the cable 12 is pulled upwards;
2. the processor 5 is electrically connected with the density measuring meter 3 through a cable 12, the processor 5 can measure the measured value of the density measuring meter 3, and the measurement can be close to different measurement modes according to the depth of the oil material or the measurement accuracy of the oil material, wherein the measurement modes are single-point measurement, multi-point measurement or continuous measurement and are used for measuring the density values of the oil material at different heights respectively;
3. the measuring wheel 41 and the clamping wheel 42 clamp the cable 12, the cable 12 pulls the measuring wheel 41 to rotate, the measuring block 43 and the Hall sensor 44 generate electric signal changes during the rotation of the measuring wheel 41, the processor 5 receives the measuring signal of the Hall sensor 44, so that the processor 5 can obtain the number of turns of the measuring wheel 41, the height position of the density measuring meter 3 at the lower end of the cable 12 and the mass of the oil in the oil tank 2 according to the cross sections of the density measuring meter 3, the height measuring meter 4 and the oil tank 2.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (10)

1. The utility model provides an explosion-proof servo oil tank oil weight measuring device which characterized in that: the oil tank height measuring device comprises a density measuring meter (3), a height measuring meter (4) and a processor (5), wherein the density measuring meter (3) is connected with a traction device (1), the traction device (1) is installed at the top of an oil tank (2), the density measuring meter (3) is hung in the oil tank (2), the height measuring meter (4) is installed at a moving part of the traction device (1), and the density measuring meter (3) and the height measuring meter (4) are both connected to the processor (5).
2. The explosion-proof servo tank oil weight measuring device of claim 1, characterized in that: traction device (1) includes body (11), capstan winch (13), draws line and drive assembly (14), and body (11) are fixed at oil tank (2) top, and capstan winch (13) gyration is supported on body (11), and drive assembly (14) are fixed on body (11) to the output and the coaxial fixed of capstan winch (13) of drive assembly (14), draw line one end winding on capstan winch (13), draw line other end is vertical downwards to be used for connecting density meter (3).
3. The explosion-proof servo tank oil weight measuring device of claim 2, characterized in that: the pulling wire is a cable (12), and the lower end of the pulling wire is electrically connected to the density measuring meter (3); one end of the pulling wire wound on the winch (13) is connected with the electric slip ring (7), the stator part of the electric slip ring (7) is fixed on the body (11), the rotor part of the electric slip ring (7) is coaxially fixed with the winch (13), and the pulling wire is connected to the processor (5) through the electric slip ring (7).
4. The explosion-proof servo tank oil weight measuring device of claim 3, characterized in that: the driving assembly (14) comprises a machine body (141), a motor (142), a driving shaft (143), a driving gear (144) and a driven gear (145), the driving shaft (143) is a hollow shaft, the driving shaft (143) is rotatably supported on the machine body (141), one end of the driving shaft (143) is coaxially fixed with the winch (13), a rotor part of the electric slip ring (7) is coaxially fixed at one end, away from the winch (13), of the driving shaft (143), a pulling wire is arranged in the middle of the driving shaft (143) in a penetrating mode, the driving gear (144) and the driven gear (145) are mutually meshed bevel gears, the driving gear (144) is coaxially fixed at an output end of the motor (142), the motor (142) is fixed on the machine body (141), and the driven gear (145) is coaxially fixed on the driving shaft (.
5. The explosion-proof servo tank oil weight measuring device of claim 1, characterized in that: the density meter (3) comprises a tuning fork type vibrating densitometer (31) and a temperature sensor (32).
6. The explosion-proof servo tank oil weight measuring device of claim 2, characterized in that: the cross section of the pulling line is rectangular.
7. The explosion-proof servo tank oil weight measuring device of claim 6, characterized in that: the height measuring meter (4) comprises a measuring wheel (41) and a clamping wheel (42), the axis of the measuring wheel (41) and the axis of the clamping wheel (42) are horizontally arranged, a measuring block (43) is arranged on the end face of the measuring wheel (41) at the edge of the measuring wheel (41), a Hall sensor (44) is arranged at the position corresponding to the measuring block (43), and the Hall sensor (44) is connected to the processor (5); the side surface of the measuring wheel (41) and the side surface of the clamping wheel (42) are oppositely clamped on the pulling line.
8. The explosion-proof servo tank oil weight measuring device of claim 7, characterized in that: the clamping wheel (42) is connected with a clamping device (6), the clamping device (6) comprises a support (61), a guide rod (62) and a spring (63), the clamping wheel (42) is rotatably supported on the support (61), the guide rod (62) is fixed on the support (61), the axis of the guide rod (62) is parallel to the central connecting line of the measuring wheel (41) and the clamping wheel (42), the spring (63) is sleeved on the guide rod (62), a guide hole (64) matched with the guide rod (62) is formed in the body (11), the guide rod (62) is inserted into the guide hole (64), the spring (63) abuts against the body (11), and the elastic force of the spring (63) is used for driving the support (61) to be close to the measuring wheel (41).
9. The explosion-proof servo oil tank oil weight measuring device of claim 7 or 8, characterized in that: the measuring wheel (41) is an I-shaped wheel, and the wheel edge of the clamping wheel (42) presses into an I-shaped opening of the measuring wheel (41).
10. The explosion-proof servo tank oil weight measuring device of claim 2, characterized in that: scales (121) are arranged on the surface of the traction line along the length direction of the traction line.
CN201811297520.8A 2018-11-01 2018-11-01 Oil weight measuring device of explosion-proof servo oil tank Pending CN111115042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811297520.8A CN111115042A (en) 2018-11-01 2018-11-01 Oil weight measuring device of explosion-proof servo oil tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811297520.8A CN111115042A (en) 2018-11-01 2018-11-01 Oil weight measuring device of explosion-proof servo oil tank

Publications (1)

Publication Number Publication Date
CN111115042A true CN111115042A (en) 2020-05-08

Family

ID=70494949

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811297520.8A Pending CN111115042A (en) 2018-11-01 2018-11-01 Oil weight measuring device of explosion-proof servo oil tank

Country Status (1)

Country Link
CN (1) CN111115042A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112034038A (en) * 2020-08-31 2020-12-04 北京同创新明科技有限责任公司 Storage tank water content detection system and control method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201191204Y (en) * 2008-04-14 2009-02-04 河南省许昌水文水资源勘测局 Rope length meter for hydrographic cableway
EP2995912A1 (en) * 2014-09-12 2016-03-16 Deere & Company Computer-implemented method, control system and sprayer vehicle with such
CN107091791A (en) * 2017-07-06 2017-08-25 青岛澳邦量器有限责任公司 A kind of on-line automatic gauge of storage tank
CN206959943U (en) * 2017-07-18 2018-02-02 中铁建港航局集团勘察设计院有限公司 A kind of fairway depth measurement apparatus
CN207866650U (en) * 2017-12-27 2018-09-14 北京世通科创技术有限公司 A kind of tuning fork densitometer with heating function
CN208206230U (en) * 2018-06-20 2018-12-07 中国石油天然气股份有限公司重庆仓储分公司 A kind of oil plant liquid level density measurement device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201191204Y (en) * 2008-04-14 2009-02-04 河南省许昌水文水资源勘测局 Rope length meter for hydrographic cableway
EP2995912A1 (en) * 2014-09-12 2016-03-16 Deere & Company Computer-implemented method, control system and sprayer vehicle with such
CN107091791A (en) * 2017-07-06 2017-08-25 青岛澳邦量器有限责任公司 A kind of on-line automatic gauge of storage tank
CN206959943U (en) * 2017-07-18 2018-02-02 中铁建港航局集团勘察设计院有限公司 A kind of fairway depth measurement apparatus
CN207866650U (en) * 2017-12-27 2018-09-14 北京世通科创技术有限公司 A kind of tuning fork densitometer with heating function
CN208206230U (en) * 2018-06-20 2018-12-07 中国石油天然气股份有限公司重庆仓储分公司 A kind of oil plant liquid level density measurement device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李树森: "《木材抓斗理论与设计》", 31 March 2001, 东北林业大学出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112034038A (en) * 2020-08-31 2020-12-04 北京同创新明科技有限责任公司 Storage tank water content detection system and control method thereof

Similar Documents

Publication Publication Date Title
CN111115042A (en) Oil weight measuring device of explosion-proof servo oil tank
CN111457984A (en) Liquid interface and material deposition thickness detection device and detection method
CN112816030A (en) Hydrogeology exploration ground water level observer
CN101382410A (en) Automatic detection apparatus for thin camber
CN205175378U (en) Pulling wire type displacement sensor
CN211954321U (en) Liquid interface and material deposition thickness detection device
CN219141792U (en) Electronic meter counter for plastic hose coil
JPH0785489B2 (en) Single crystal diameter measurement method
CN209069477U (en) A kind of device for detecting pulling-out force of balance weight of automobile wheels
CN216869849U (en) Force measuring device for traction force of self-propelled tractor
CN103091202B (en) Liquid density measurement device
CN210893131U (en) Multi-functional land mapping device
CN210981439U (en) Liquid level transmitter capable of adjusting cable length
CN218956334U (en) Device for measuring slump flow of autoclaved aerated concrete slurry
CN218968514U (en) Meter counting device for cable looping machine
CN219823266U (en) Length measuring device
CN213956518U (en) Guided wave radar level gauge
CN215114448U (en) Level bar for measuring large-span part deflection
CN211904325U (en) High-stability float type water level gauge
US1429269A (en) Fermentation meter
CN110686580A (en) Meter counter for cable production
CN218878988U (en) Wire take-up device
CN219031398U (en) Geological measuring device using geological measuring rope
CN211602806U (en) Mobility detection device for semi-fluid solvent
CN220982703U (en) Quality detection device

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20200508

RJ01 Rejection of invention patent application after publication