CN207599321U - Intelligent lubricating device monitoring running state device - Google Patents
Intelligent lubricating device monitoring running state device Download PDFInfo
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- CN207599321U CN207599321U CN201721723786.5U CN201721723786U CN207599321U CN 207599321 U CN207599321 U CN 207599321U CN 201721723786 U CN201721723786 U CN 201721723786U CN 207599321 U CN207599321 U CN 207599321U
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Abstract
The utility model discloses a kind of Intelligent lubricating device monitoring running state device, including：Oil mass detection component, including the first branch pipe, the first temperature sensor and liquid level sensor, the first branch pipe upper and lower side connects respectively with oil storage tank upper and lower side, bottom is recessed upwards to form a holding tank, and the first temperature sensor is mounted in holding tank；Oil quantity alarming component, it includes the second branch pipe, buoy block, laser generator and laser pickoff, second branch pipe is transparent, its upper and lower side connects respectively with oil storage tank upper and lower side; buoy block is in class dumbbell shaped; on its pasta to float in the second branch pipe, buoy block includes upper sphere, connecting rod and lower sphere；Battery capacity detection components；Oil pump detection components.The utility model has the influence for avoiding the swabbing action into oil-feed pump to oil mass detection precision and relies only on the i.e. changeable buoy block position of buoyancy and gravity, reaches effectively blocking laser, improves the advantageous effect of accuracy of detection.
Description
Technical field
The utility model is related to lubricating arrangements to monitor field.More specifically, the utility model is related to a kind of intelligent lubricatings
Device monitoring running state device.
Background technology
With the rapid development of China's oil chemical industry intellectually and automatically, enterprise is safe and stable to process units
Continuous production propose higher requirement, therefore, the daily maintenance of appliance arrangement works increasingly by the weight of enterprise
Depending on.And corrective maintenance head lubricates again, the selection of lubricating system, the quality of lubricant effect, safe and stable, the continuous life to device
Production, which will generate, directly to be influenced.
The lubrication of Technologies in Petrochemical Industry starts to develop towards intelligent lubricating direction at present, has abandoned manual mode of operation, although
Solve the problems, such as control grease injection rate, but it is inadequate for the monitoring accuracy of the operation of Intelligent lubricating device, it is especially right
In the detection of the oil mass in Intelligent lubricating device it is not accurate and supplement oil mass timing it is bad, to oil qualitative effects
Greatly, it in order to meet the needs of China's oil chemical industry is to automatic lubrication installation, needs to develop a suitable for petrochemical industry row
The monitoring device of the lubricating utensil of the various operating modes of industry and application environment, to meet China's oil chemical industry to automatic lubrication installation
Demand.
Utility model content
One purpose of the utility model is to solve at least the above, and provide the advantages of at least will be described later.
The utility model is to provide a kind of Intelligent lubricating device monitoring running state device there are one purpose, can be to avoid
Into influence of the swabbing action to oil mass detection precision of oil-feed pump, buoyancy can also be relied only on and gravity changes position
It puts, so as to have the function that stop laser, achievees the purpose that alarm, react oil mass supplement opportunity in time, ensure oil quality.
In order to realize these purposes and other advantages according to the present utility model, a kind of Intelligent lubricating device operation is provided
State monitoring apparatus, including：
Oil mass detection component, including the first branch pipe, the first temperature sensor and liquid level sensor, described first
Pipe is connected in class rounding mesa-shaped, the upper and lower side of first branch pipe with the oil storage tank upper and lower side of the Intelligent lubricating device respectively,
One holding tank of the concave up sunken formation of first bottom of the tube, first temperature sensor are mounted in the holding tank,
For detecting the oil temperature in first branch pipe, the liquid level sensor is mounted on inside first branch pipe, for detecting
The liquid level of the first branch pipe is stated, wherein, first branch pipe is made of thermal sensitivity metal material；
Oil quantity alarming component, including the second branch pipe, buoy block, laser generator and laser pickoff, described second
Branch pipe is transparent, and the second branch pipe upper and lower side connects respectively with the oil storage tank upper and lower side of the Intelligent lubricating device, described
Buoy block is in class dumbbell shaped, and on the pasta to float in second branch pipe, the buoy block includes solid successively from top to bottom
Upper sphere, connecting rod and the lower sphere connect, the upper sphere include hollow ball and seal coated outside the hollow ball
First rubber layer on surface, the connecting rod are transparent, and are rigid bar, and the lower sphere includes solid sphere, sealing packet
The second rubber layer in the solid sphere outer surface and the gravity block that is contained at the solid sphere centre of sphere are applied, it is described
The diameter of upper sphere and the lower sphere is slightly less than the internal diameter of second branch pipe, material is foam, the laser
Generator and the laser pickoff are oppositely arranged in the second branch pipe exterior side wall, wherein, the laser generator and
Vertical distance of the laser pickoff apart from the second branch pipe lower end is set as：When the lower sphere is located at laser hair
When between raw device and the laser pickoff, vertical distance of the pasta apart from the second branch pipe lower end in second branch pipe
For the first alarm height, when the upper sphere is between the laser generator and the laser pickoff, described second
Vertical distance of the pasta apart from the second branch pipe lower end in branch pipe is the second alarm height；
Battery capacity detection components measure chip and second temperature sensor, institute including mounting blocks, battery capacity
Mounting blocks are stated to include the groove being arranged on the outer casing inner wall for the battery pack for installing the Intelligent lubricating device and be laid in described
Rubber pad in the bottom and side wall of groove, the rubber pad outer surface are equipped with a plurality of groove, are filled on every groove
Asbestos, the thickness of the asbestos are slightly larger than the depth of the groove, and the battery capacity measures chip and the second temperature passes
Sensor is installed on the rubber pad；
Oil pump detection components, including noise transducer, vibrating sensor and third temperature sensor, the noise
Sensor and the vibrating sensor are installed in the shell inside into oil-feed pump of the Intelligent lubricating device, and close to described
Into the rotor-end of oil-feed pump, the third temperature sensor is mounted on the port of export into oil-feed pump.
Preferably, it further includes：Operation console component, including workbench, display, PLC controller and alarm,
The display is mounted on the workbench；
Wherein, the display, the alarm, the liquid level sensor, first temperature sensor, the laser
Generator, the laser pickoff, the battery capacity measure chip, the noise transducer, the vibrating sensor and
The third temperature sensor is respectively connect by 485 connections with the PLC controller；
The battery capacity measures the electricity that chip is used to detect the battery pack, and the second temperature sensor is used to examine
Survey the temperature of the battery pack.
Preferably, the quality settings of the gravity block are：It is described when the buoy block is floated in second branch pipe
Pasta in second branch pipe is higher than the center of circle of the solid sphere, less than the connecting rod upper end.
Preferably, first alarm height is set as 4cm, and second alarm height is set as 2cm.
Preferably, the diameter of second branch pipe is set as 1.5~2cm.
Preferably, the material of first branch pipe is copper, and the material of the connecting rod is plastics.
Preferably, the diameter of the upper sphere is slightly less than the diameter of the lower sphere.
Preferably, the thickness of first rubber layer and second rubber layer is respectively less than 1mm.
The utility model includes at least following advantageous effect：
Firstth, can be to avoid influence of the swabbing action to oil mass detection precision of feeding oil pump, while may also rely on floating
Power acts on and gravity changes position, so as to have the function that stop laser, accurately reacts the opportunity of makeup oil in time, protects
Demonstrate,prove oil quality；
Secondth, it is mainly that swabbing action is directly implemented to the oil in oil storage tank into oil-feed pump, by liquid level in greasing
Sensor be mounted on the first branch pipe in rather than oil storage tank in, can to avoid feeding oil pump swabbing action to liquid level sensor
Damage, and influence the measurement accuracy of liquid level sensor；
Third, when the oil mass in oil storage tank is reduced, pasta declines, and buoy block is driven to decline under the effect of gravity, ball instantly
When body is fallen into place with liquid level between laser generator and laser pickoff, the laser that laser generator is launched is by lower sphere
Blocking, laser pickoff do not receive laser, illustrate that the oil mass in oil storage tank has reached first time alert status, require supplementation with
Oil mass, and if supplementing oil mass not yet, when pasta continues to decline, connecting rod is transparent, so can't stop laser, only
Have when upper sphere is between laser generator and laser pickoff, laser is stopped again by upper sphere, and laser pickoff is again
It is secondary not receive laser, illustrate at this time the oil mass in oil storage tank reached necessarily supplement oil mass position, buoy block, if
Dumbbell shaped, and lightness sensation in the upper and heaviness in the lower are calculated as, changes position by buoyancy and gravity, so as to have the function that stop laser, is reached
It is reliable and intuitive but also energy saving to the purpose of alarm；
4th, mounting blocks include the groove being arranged on the outer casing inner wall of the battery pack of installation Intelligent lubricating device and laying
Rubber pad in the bottom and side wall of groove, rubber pad outer surface are equipped with a plurality of groove, stone are filled on every groove
Cotton, can buffer the violent vibration due to being generated during feeding operation of oil pump, and chip and second is measured so as to improve battery capacity
The accuracy of detection of temperature sensor reduces destruction of the vibration to the two.
Part is illustrated to embody by the further advantage, target and feature of the utility model by following, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the detail view of buoy block described in the utility model；
Fig. 3 is the detail view of battery capacity detection components described in the utility model；
Fig. 4 is the connection schematic diagram of operation console described in the utility model.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be noted that in the description of the present invention, term " on ", " under ", " vertical ", " level ", " top ",
The orientation or position relationship of the instructions such as " bottom ", " interior ", " outer " are based on orientation shown in the drawings or position relationship, merely to just
It is described in description the utility model with simplified, be not instruction or imply that signified device or element must be with specifically sides
Position, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
As shown in figures 1-4, the utility model provides a kind of Intelligent lubricating device monitoring running state device, including：
Oil mass detection component 6, it is described including the first branch pipe 61, the first temperature sensor 62 and liquid level sensor 63
First branch pipe 61 is in class rounding mesa-shaped, the upper and lower side of first branch pipe 61 respectively with the oil storage tank of the Intelligent lubricating device 3
Upper and lower side connects, and the oil in oil storage tank 3 can be entered in the first branch pipe 61, and pasta is respectively positioned in same horizontal line, described
First branch pipe, 61 bottom is recessed to form a holding tank 64 upwards, and first temperature sensor 62 is mounted on the holding tank 64
It is interior, for detecting the oil temperature in first branch pipe 61, the first temperature sensor 62 can be made closer in the first branch pipe 61
Oil makes its measurement more accurate, and the liquid level sensor 63 is mounted on inside first branch pipe 61, for detecting described first
The liquid level of pipe 61, wherein, first branch pipe 61 is made of thermal sensitivity metal material；In greasing, led into oil-feed pump 2
If directly implementing swabbing action to the oil in oil storage tank 3, liquid level sensor 63 is mounted in the first branch pipe 61 rather than stored up
, can be to avoid damage of the swabbing action to liquid level sensor 63 of feeding oil pump 2 in oil tank 3, and influence liquid level sensor 63
Measurement accuracy；
Oil quantity alarming component 7, including the second branch pipe 71, buoy block 72, laser generator 73 and laser pickoff
74, second branch pipe 71 is transparent, 71 upper and lower side of the second branch pipe respectively with the oil storage tank of the Intelligent lubricating device 3
Upper and lower side connects, and the oil in oil storage tank 3 can be entered in the second branch pipe 71, and pasta is respectively positioned in same horizontal line, described
Buoy block 72 is in class dumbbell shaped, and on the pasta to float in second branch pipe 71, the buoy block 72 is included from top to bottom
Affixed upper sphere 100, connecting rod 101 and lower sphere 102 successively, the upper sphere 100 include hollow ball 103 and close
Package applies the first rubber layer 104 in 103 outer surface of hollow ball, and the connecting rod 101 is transparent, and is hardness
Bar, the lower sphere 102 include solid sphere 105, seal coated the second rubber layer in 105 outer surface of solid sphere
106 and the gravity block 107 that is contained at 105 centre of sphere of solid sphere, solid sphere 105 and gravity block 107 can help
The diameter of the holding vertical state of connecting rod 101, the upper sphere 100 and the lower sphere 102 is slightly less than second branch pipe
71 internal diameter, material are foam, prevent upper sphere 100 from falling down and horizontal in the second branch pipe 71, the laser generator
73 and the laser pickoff 74 be oppositely arranged in 71 exterior side wall of the second branch pipe, laser generator 73 is with certain frequency
Launch laser, laser pickoff 74 receives the laser that laser generator 73 is launched, when the oil mass reduction in oil storage tank 3, oil
Face declines, and buoy block 72 is driven to decline under the effect of gravity, when lower sphere 102 is fallen into place with liquid level in 73 He of laser generator
When between laser pickoff 74, the laser that laser generator 73 is launched is stopped that laser pickoff 74 receives not by lower sphere 102
To laser, illustrate that the oil mass in oil storage tank 3 has reached first time alert status, require supplementation with oil mass, and if mended not yet
Oil-filled quantity, when pasta continues to decline, connecting rod 101 is transparent, so will not stop laser, only when upper sphere 100 is located at
When between laser generator 73 and laser pickoff 74, laser is stopped again by upper sphere 100, and laser pickoff 74 receives again
Less than laser, illustrate that the oil mass in oil storage tank 3 has reached the position for necessarily supplementing oil mass at this time, wherein, the laser
The vertical distance of generator 73 and the laser pickoff 74 apart from 71 lower end of the second branch pipe is set as：When the lower sphere
102 between the laser generator 73 and the laser pickoff 74 when, the pasta in second branch pipe 71 is apart from institute
The vertical distance for stating 71 lower end of the second branch pipe is the first alarm height, when the upper sphere 100 is located at the laser generator 73
When between the laser pickoff 74, pasta in second branch pipe 71 apart from 71 lower end of the second branch pipe it is vertical away from
From for the second alarm height；
Battery capacity detection components 8 measure chip 82 and second temperature sensor including mounting blocks, battery capacity
83, the mounting blocks include the groove and the laying that are arranged on the outer casing inner wall for the battery pack 1 for installing the Intelligent lubricating device
Rubber pad 81 in the bottom and side wall of the groove, 81 outer surface of rubber pad are equipped with a plurality of groove, every groove
On filled with asbestos, the thickness of the asbestos is slightly larger than the depth of the groove, and the battery capacity measures chip 82 and institute
Second temperature sensor 83 is stated to be installed on the rubber pad 81；During due to working into oil-feed pump 2, violent shake can be generated
Dynamic, mounting blocks can buffer this vibration, so as to improve the detection that battery capacity measures chip 82 and second temperature sensor 83
Precision reduces destruction of the vibration to the two；
Oil pump detection components 9, including noise transducer 91, vibrating sensor 92 and third temperature sensor 93, institute
It states noise transducer 91 and the vibrating sensor 92 is installed in the shell into oil-feed pump 2 of the Intelligent lubricating device
Side, and close to the rotor-end into oil-feed pump 2, the third temperature sensor 93 is mounted on described into the outlet of oil-feed pump 2
End, it can be realized that into the working condition of oil-feed pump 2, check whether abnormal phenomenon occur.
In the above-mentioned technical solutions, it is mainly that the oil in oil storage tank 3 is directly implemented into oil-feed pump 2 in greasing
Liquid level sensor 63 is mounted in the first branch pipe 61 rather than is directly installed on oil storage tank by swabbing action, oil mass detection component 6
, can be to avoid damage of the swabbing action to liquid level sensor 63 of feeding oil pump 2 in 3, and influence the measurement of liquid level sensor 63
Precision；
The buoy block 72 of oil quantity alarming component 7, is designed as dumbbell shaped, and lightness sensation in the upper and heaviness in the lower, by buoyancy and gravity
Change position, so as to have the function that stop laser, achieve the purpose that alarm, it is reliable and intuitive but also energy saving；
Mounting blocks in battery capacity detection components 8 can be buffered since what is generated when working into oil-feed pump 2 violent shakes
It is dynamic, so as to improve the accuracy of detection that battery capacity measures chip 82 and second temperature sensor 83, reduce vibration and the two is broken
It is bad.
In another technical solution, further include：Operation console component 5, including workbench 51, display 52, PLC controls
Device 53 and alarm 55, the display 52 are mounted on the workbench 51；
Wherein, the display 52, the alarm 55, the liquid level sensor 63, first temperature sensor 62,
The laser generator 73, the laser pickoff 74, the battery capacity measure chip 82, the noise transducer 91, institute
Vibrating sensor 92 and the third temperature sensor 93 are stated respectively by 485 connections 54 and the PLC controller 53
Connection；
The battery capacity measures the electricity that chip 82 is used to detect the battery pack 1, and battery capacity measures chip 82 can
Think LTC2942, the second temperature sensor 83 is used to detect the temperature of the battery pack 1.
In the above-mentioned technical solutions, simple and clear in display 52 it can observe that Intelligent lubricating device runs shape
State, such as oil mass, battery capacity and whether abnormal into oil-feed pump 2.
In another technical solution, the quality settings of the gravity block 107 are：The buoy block 72 floats described
When in two branch pipes 71, the pasta in second branch pipe 71 is higher than the center of circle of the solid sphere 105, less than the connecting rod
101 upper ends can make buoy block 72 is more steady to float in the second branch pipe 71, improve it and react the precision of oil mass.
In another technical solution, first alarm height is set as 4cm, and second alarm height is set as
2cm lubricates required oil mass and does not need to too many in itself, and works under Intelligent lubricating device and hot soak condition,
Therefore fresh oil is supplemented when oil mass is finished as possible, high temperature shape can be chronically to avoid oil, ensure the quality of oil.
In another technical solution, the diameter of second branch pipe 71 is set as 1.5~2cm, reduces for detection
Oil mass.
In another technical solution, the material of first branch pipe 61 is copper, and heat transfer efficiency is high, is measured precisely, described
The material of connecting rod 101 is plastics, and light weight helps to float.
In another technical solution, the diameter of the upper sphere 100 is slightly less than the diameter of the lower sphere 102, helps
Vertical state is kept in buoy block 72, can more accurately react fuel head.
In another technical solution, the thickness of first rubber layer 104 and second rubber layer 106 is respectively less than
1mm, can get prevents oil from entering in hollow ball 103 and solid sphere 105.
Although the embodiment of the utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modification is easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
Specific details and legend shown and described herein are not limited to novel.
Claims (8)
1. a kind of Intelligent lubricating device monitoring running state device, which is characterized in that including：
Oil mass detection component, including the first branch pipe, the first temperature sensor and liquid level sensor, first branch pipe is in
Class rounding mesa-shaped, the upper and lower side of first branch pipe connects respectively with the oil storage tank upper and lower side of the Intelligent lubricating device, described
First bottom of the tube, one holding tank of concave up sunken formation, first temperature sensor are mounted in the holding tank, are used for
Detect the oil temperature in first branch pipe, the liquid level sensor is mounted on inside first branch pipe, for detecting described the
The liquid level of one branch pipe, wherein, first branch pipe is made of thermal sensitivity metal material；
Oil quantity alarming component, including the second branch pipe, buoy block, laser generator and laser pickoff, second branch pipe
It is transparent, the second branch pipe upper and lower side connects respectively with the oil storage tank upper and lower side of the Intelligent lubricating device, the buoy
Block is in class dumbbell shaped, and on the pasta to float in second branch pipe, the buoy block includes affixed successively from top to bottom
Upper sphere, connecting rod and lower sphere, the upper sphere include hollow ball and seal coated in the hollow ball outer surface
The first rubber layer, the connecting rod is transparent, and is rigid bar, the lower sphere include solid sphere, sealing it is coated
Second rubber layer of the solid sphere outer surface and the gravity block being contained at the solid sphere centre of sphere, the upper ball
The diameter of body and the lower sphere is slightly less than the internal diameter of second branch pipe, material is foam, and the laser occurs
Device and the laser pickoff are oppositely arranged in the second branch pipe exterior side wall, wherein, the laser generator and described
Vertical distance of the laser pickoff apart from the second branch pipe lower end is set as：When the lower sphere is located at the laser generator
When between the laser pickoff, vertical distance of the pasta apart from the second branch pipe lower end in second branch pipe is the
One alarm height, when the upper sphere is between the laser generator and the laser pickoff, second branch pipe
Vertical distance of the interior pasta apart from the second branch pipe lower end is the second alarm height；
Battery capacity detection components measure chip and second temperature sensor, the peace including mounting blocks, battery capacity
Dress block includes the groove being arranged on the outer casing inner wall for the battery pack for installing the Intelligent lubricating device and the groove that is laid in
Bottom and side wall on rubber pad, the rubber pad outer surface is equipped with a plurality of groove, filled with asbestos on every groove,
The thickness of the asbestos is slightly larger than the depth of the groove, and the battery capacity measures chip and the second temperature sensor is equal
On the rubber pad；
Oil pump detection components, including noise transducer, vibrating sensor and third temperature sensor, the noise sensing
Device and the vibrating sensor are installed in the shell inside into oil-feed pump of the Intelligent lubricating device, and close to the feeding
The rotor-end of oil pump, the third temperature sensor are mounted on the port of export into oil-feed pump.
2. Intelligent lubricating device monitoring running state device as described in claim 1, which is characterized in that further include：Operation console
Component, including workbench, display, PLC controller and alarm, the display is mounted on the workbench；
Wherein, the display, the alarm, the liquid level sensor, first temperature sensor, the laser occur
Device, the laser pickoff, the battery capacity measure chip, the noise transducer, the vibrating sensor and described
Third temperature sensor is respectively connect by 485 connections with the PLC controller；
The battery capacity measures the electricity that chip is used to detect the battery pack, and the second temperature sensor is used to detect institute
State the temperature of battery pack.
3. Intelligent lubricating device monitoring running state device as described in claim 1, which is characterized in that the matter of the gravity block
Amount is set as：When the buoy block is floated in second branch pipe, the pasta in second branch pipe is higher than the medicine ball
The center of circle of body, less than the connecting rod upper end.
4. Intelligent lubricating device monitoring running state device as described in claim 1, which is characterized in that first early warning is high
Degree is set as 4cm, and second alarm height is set as 2cm.
5. Intelligent lubricating device monitoring running state device as described in claim 1, which is characterized in that second branch pipe
Diameter is set as 1.5~2cm.
6. Intelligent lubricating device monitoring running state device as described in claim 1, which is characterized in that first branch pipe
Material is copper, and the material of the connecting rod is plastics.
7. Intelligent lubricating device monitoring running state device as described in claim 1, which is characterized in that the upper sphere it is straight
Diameter is slightly less than the diameter of the lower sphere.
8. Intelligent lubricating device monitoring running state device as described in claim 1, which is characterized in that first rubber layer
1mm is respectively less than with the thickness of second rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721723786.5U CN207599321U (en) | 2017-12-12 | 2017-12-12 | Intelligent lubricating device monitoring running state device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721723786.5U CN207599321U (en) | 2017-12-12 | 2017-12-12 | Intelligent lubricating device monitoring running state device |
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| CN207599321U true CN207599321U (en) | 2018-07-10 |
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ID=62765266
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| CN201721723786.5U Active CN207599321U (en) | 2017-12-12 | 2017-12-12 | Intelligent lubricating device monitoring running state device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825134A (en) * | 2018-07-27 | 2018-11-16 | 深圳市市政设计研究院有限公司 | A kind of drill bit guidance system and arc large scale piperoof construction method |
| CN109373170A (en) * | 2018-11-30 | 2019-02-22 | 重庆康世德源科技实业有限公司 | A kind of fuel-flow control, monitoring device |
-
2017
- 2017-12-12 CN CN201721723786.5U patent/CN207599321U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825134A (en) * | 2018-07-27 | 2018-11-16 | 深圳市市政设计研究院有限公司 | A kind of drill bit guidance system and arc large scale piperoof construction method |
| CN109373170A (en) * | 2018-11-30 | 2019-02-22 | 重庆康世德源科技实业有限公司 | A kind of fuel-flow control, monitoring device |
| CN109373170B (en) * | 2018-11-30 | 2023-11-07 | 重庆康世德源科技实业有限公司 | Oil mass control, monitoring devices |
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