CN207866296U - A kind of accurate metering system of grease unloading - Google Patents
A kind of accurate metering system of grease unloading Download PDFInfo
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- CN207866296U CN207866296U CN201820169277.0U CN201820169277U CN207866296U CN 207866296 U CN207866296 U CN 207866296U CN 201820169277 U CN201820169277 U CN 201820169277U CN 207866296 U CN207866296 U CN 207866296U
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Abstract
The utility model is related to the accurate measurement technical fields of grease unloading, refer in particular to a kind of accurate metering system of grease unloading, including rectification tank, lifting platform, oil pump, flowmeter and vacuum pump, rectification tank can realize a certain range of raising by lifting platform and reduce, rectification tank side is equipped with inlet tube, the rectification tank other side is equipped with out liquid hose, go out the oil pump inlet that liquid hose is connected to oil pump by pumping inlet tube, the oil pump liquid outlet of oil pump, which is connected with, pumps out liquid pipe, it pumps out in liquid pipe equipped with valve after pump, on pipeline after flowmeter is set to oil pump liquid outlet and pumps between valve, vacuum pump is connected to rectification tank top by exhaust tube.The system can eliminate mixed large quantity of air during RTC unloading fat and stablize liquid stream automatically, flow meters work environment is allowed to be maintained at optimum state, to reach its nominal measuring accuracy, it ensure that the reliability of grease metering, whole system floor space is small, low cost, high degree of automation, metering are accurate.
Description
Technical field
The utility model is related to the accurate measurement technical fields of grease unloading, refer in particular to a kind of accurate measurement system of grease unloading
System, and in particular to a method of by system and the metering of grease unloading, pumping and accurate measurement on edible oil transport vehicle.
Background technology
Edible bulk oil high-volume, which is transported, generally uses edible oil transport vehicle, is commonly called as oil truck, tank car etc..Currently, edible
The more accurate method of metering of oily transport vehicle innage is to be weighed to vehicle using weighbridge, load front and back vehicle quality it
Difference, the edible oil quality as loaded.According to the size of oil tank in vehicle, the useful load of bulk oil is generally 20~50 tons, in addition
The dead weight of vehicle, total weight is at 30~70 tons.In order to be precisely weighed so big weight, the requirement to the loading component in weighbridge is very
Height causes the construction cost of weighbridge higher.For example, an amount wide range is 80 tons, the weighbridge that precision is 0.2, cost is 150,000
Left and right.Moreover, weighbridge floor space is larger (general width is 3 meters, 8~20 meters long), is not appropriate for the limited factory in space
To install.There is no suitable vacant lot sky to fill for the factory of weighbridge those, is become to measure handling oil mass using flowmeter
A kind of inevitable choice.Although the nominal accuracy of some delicate flow meters can reach 0.2, even higher, in practical applications
Measurement error but be significantly larger than 0.2%, error is substantially 2% or more.So big error can give food in bulk oil trade
Bring very big problem and dispute.Why there are so high error, main cause using flowmeter come the oil mass for measuring oil truck
It is：It is mixed into large quantity of air in oil loads and unloads pumping procedure, especially in the coda of RTC unloading, oil level sees the bottom, and is mixed into sky
Gas is inevitable.
Utility model content
In view of the above problems, the utility model provides a kind of accurate metering system of grease unloading, the system is in oil tank
Vehicle can eliminate mixed large quantity of air and stable liquid stream automatically during unloading grease, and flow meters work environment is allowed to be maintained at best shape
State ensure that the reliability of grease metering to reach its nominal measuring accuracy, and whole system floor space is small, low cost,
High degree of automation, metering are accurate.
To achieve the goals above, the technical solution adopted in the utility model is as follows：
A kind of accurate metering system of grease unloading, including rectification tank, lifting platform, oil pump, flowmeter and vacuum pump, rectification
Tank can realize a certain range of raising by lifting platform and reduce that rectification tank side is equipped with inlet tube, and the rectification tank other side is set
There is liquid hose, go out the oil pump inlet that liquid hose is connected to oil pump by pumping inlet tube, the oil pump liquid outlet of oil pump is connected with
Liquid pipe is pumped out, is pumped out equipped with valve after pump in liquid pipe, on the pipeline after flowmeter is set to oil pump liquid outlet and pumps between valve, vacuum pump
It is connected to rectification tank top by exhaust tube.
Furthermore, the rectification tank includes cylinder, upper cover and pedestal, is connect with upper cover sealed bottom at the top of cylinder,
Cylinder body bottom is equipped with the inclined bottom plate of sealed set, and liquid level gauge is housed on cylinder side, pressure gauge is housed on upper tops, pedestal is logical
Fastening bolt is crossed to be fixedly connected with lifting platform.
Furthermore, be equipped with shell flange at the top of the cylinder, upper cover bottom is equipped with upper cover flange, shell flange with it is upper
Lid flange is tightly connected by fastening bolt.
Furthermore, the inclined bottom plate tilts certain angle setting, the lower end sealing welding of inclined bottom plate surrounding and cylinder
It connects.
Furthermore, the upper cross over pipe of the liquid level gauge is loaded on the shell flange position at the top of cylinder, liquid level gauge
Lower cross over pipe be loaded on position on the lower side in the middle part of the cylinder, and with loaded on cylinder body bottom to go out liquid hose spaced apart.
Furthermore, the inlet tube is set to the position of upper middle on the left of cylinder, and inlet tube is vertically arranged with cylinder,
Liquid feed valve is housed on inlet tube.
Furthermore, it is described go out liquid hose be set on the right side of cylinder close to position base, pump on inlet tube equipped with valve before pump
With gas-guide tube, vent valve is housed on gas-guide tube.
Furthermore, the exhaust tube is vertically loaded on upper cover top center, and extraction valve is housed on exhaust tube.
Furthermore, the rectification tank is touched equipped with A liquid levels trigger point, B liquid levels trigger point, C liquid levels successively from top to bottom
Point is sent out, (center flushes, and B liquid levels trigger point is set to slightly above inlet tube, C with the upper cross over pipe of liquid level gauge for A liquid levels trigger point
Liquid level trigger point is flushed with the lower cross over pipe center of liquid level gauge.
A kind of accurate metering system of grease unloading, metering method include the following steps：
Step 1: the oil discharge pipe of oil truck is connected with the inlet tube of rectification tank, lifting platform height is adjusted, inlet tube is made
Position is immediately lower than oil truck baseplane lowest point, opens liquid feed valve, allows the oil in oil truck to flow under gravity whole
Tank is flowed, valve allows oil to be full of liquid hose and pump inlet tube before opening simultaneously pump, opens the vent valve of gas-guide tube upper end, is emptied
Gas operates, until closing vent valve after having oil stream to go out；
Step 2: when entering the fluid position in rectification tank by flow by gravity and reaching on B liquid levels trigger point, after opening pump
Valve, oil pump, extraction valve and vacuum pump, the oil in rectification tank is constantly extracted out under the action of oil pump, and the contained sky in oil
Gas then constantly pumps out rectification tank by vacuum pump, and when entering the oil mass in rectification tank and being more than extracted amount, oily liquid level can be into
One step rises, and when more than the liquid level trigger points A, closes vacuum pump and extraction valve, and the oil to deaerate in rectification tank then continues to be taken out by oil pump
Valve is admitted in oil tank after going out after the metering of flowmeter to flow through pump, is less than extracted amount when entering the oil mass in rectification tank
When, oily liquid level can constantly decline in rectification tank, when liquid level drops to the liquid level trigger points A under when, open extraction valve and vacuum
Pump closes vacuum pump and extraction valve when liquid level continues to drop under B liquid levels trigger point, when dropping to the liquid level trigger points C, closes
Oil pump stops pump oil, and the oil in oil truck can also flow under the influence of gravity into rectification tank at this time, until liquid level reaches the triggering of B liquid levels
This step 2 is then repeated on point and starts operation, until the oil that oil truck loads is drained only, is no longer flow into rectification tank；
Step 3: when the oil in oil truck is no longer flow into rectification tank, liquid level one oily in rectification tank is settled in B at this time
Between liquid level trigger point and C liquid levels trigger point, manually opened oil pump, until fluid potential drop is to C liquid levels trigger point, due into becoming a mandarin
The oil stream of gauge is all the oil by degassing, can accurately be measured by flowmeter, and the volume of rectification tank is much smaller than oil truck
Oil reserve, the remaining grease being finally deposited in rectification tank is less and amount is certain, can measure to obtain exact value in advance, because
The oil mass unloaded in this entire oil truck can be measured accurately.
The utility model advantageous effect：
The utility model uses such structure setting, the system that can eliminate and be mixed into automatically during RTC unloading fat
Large quantity of air and stablize liquid stream, allow flow meters work environment to be maintained at optimum state, to reach its nominal measuring accuracy,
It ensure that the reliability of grease metering, whole system floor space is small, low cost, high degree of automation, and metering is accurate.
Description of the drawings
Fig. 1 is the utility model of the whole structure diagram；
Fig. 2 is utility model works structure chart.
1. rectification tank；10. cylinder；100. shell flange；11. upper cover；110. upper cover flange；12. pedestal；13. inclined bottom plate；
14. inlet tube；140. liquid feed valve；15. going out liquid hose；16. liquid level gauge；Cross over pipe on 160.；161. times cross over pipes；17. pumping
Pipe；170. extraction valve；18. pressure gauge；2. lifting platform；3. oil pump；30. oil pump inlet；31. oil pump liquid outlet；4. flowmeter；
5. vacuum pump；6. pumping inlet tube；60. valve before pump；7. pumping out liquid pipe；70.
Valve after pump；8. gas-guide tube；80. vent valve.
Specific implementation mode
The technical solution of the utility model is illustrated with embodiment below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, the accurate metering system of a kind of grease unloading described in the utility model, including rectification tank 1,
Lifting platform 2, oil pump 3, flowmeter 4 and vacuum pump 5, rectification tank 1 can realize a certain range of raising and drop by lifting platform 2
Low, 1 side of rectification tank is equipped with inlet tube 14, and 1 other side of rectification tank is equipped with out liquid hose 15, goes out liquid hose 15 by pumping inlet tube
6 are connected to the oil pump inlet 30 of oil pump 3, and the oil pump liquid outlet 31 of oil pump 3, which is connected with, pumps out liquid pipe 7, pumps out and is equipped in liquid pipe 7
Valve 70 after pump, on the pipeline between valve 70 after oil pump liquid outlet 31 and pump, vacuum pump 5 is connected flowmeter 4 by exhaust tube 17
It is connected to 1 top of rectification tank.Using such structure setting, operation principle：Connected by the oil discharge pipe of inlet tube 14 and oil truck
It is logical, by adjusting lifting platform 2 to adjust 1 most suitable height of rectification tank, the liquid feed valve 140 on inlet tube 14 is opened, allows oil
Grease on tank car flows into rectification tank 1, and valve 60 allows oil to enter liquid hose with oil pump 3 before opening simultaneously the pump on pump inlet tube 6
15, it is accurately calculated by flowmeter 4.The effect of its intermediate pump 5 is to pump the air in rectification tank 1.Preferably, originally
The volume of rectification tank 1 described in utility model be mating oil pump 3 with metered flow 20~90s of pump oil when amount, the Gao Jing of rectification tank 1
Than being 2~4：1；Gear oil pump can be selected in oil pump 3；Oval gear flowmeter or mass flowmenter, flow essence can be selected in flowmeter 4
Degree is not less than 0.2.
More specifically, the rectification tank 1 includes cylinder 10, upper cover 11 and pedestal 12,10 top of cylinder and 11 bottom of upper cover
Portion is tightly connected, and 10 bottom of cylinder is equipped with the inclined bottom plate 13 of sealed set, and liquid level gauge 16 is housed on 10 side of cylinder, and upper cover 11 is pushed up
Pressure gauge 18 is housed, pedestal 12 is fixedly connected by fastening bolt with lifting platform 2 in portion.10 top of cylinder is equipped with shell flange
100,11 bottom of upper cover is equipped with upper cover flange 110, and shell flange 100 is tightly connected with upper cover flange 110 by fastening bolt.Tiltedly
Bottom plate 13 tilts certain angle setting, the lower end sealing welding of 13 surrounding of inclined bottom plate and cylinder 10.It is set using such structure
It sets, upper cover 11 and the effect of pedestal 12 are that, by 1 upper-lower seal of rectification tank, the effect of inclined bottom plate 13 is to make in rectification tank 1
Oil it is more convenient enter liquid hose 15, liquid level gauge 16 is used to observe the oil level in rectification tank 1, and pressure gauge 18 is to test rectification
Pressure in tank 1.
More specifically, the upper cross over pipe 160 of the liquid level gauge 16 is loaded on the shell flange 100 close to 10 top of cylinder
It sets, the lower cross over pipe 161 of liquid level gauge 16 is loaded on close to 10 middle part of cylinder position on the lower side, and goes out liquid with loaded on 10 bottom of cylinder
Hose 15 is spaced apart.Liquid level gauge 16 is used to observe the oil level in rectification tank 1, it is preferred that liquid level described in the utility model
Count 16 optional remote level indicators.
More specifically, the inlet tube 14 is set to the position of 10 left side upper middle of cylinder, inlet tube 14 and cylinder 10
It is vertically arranged, liquid feed valve 140 is housed on inlet tube 14.Using such structure setting, keep the oil of oil truck more convenient into whole
It flows in tank 1.
More specifically, it is described go out liquid hose 15 be set to the right side of cylinder 10 close to 12 position of pedestal, pump and be equipped on inlet tube 6
Preceding valve 60 and gas-guide tube 8 are pumped, vent valve 80 is housed on gas-guide tube 8.Using such structure setting, make in rectification tank 1 oil more
Facilitate and enter liquid hose 15, while the air in liquid hose 15 can be emptied out by gas-guide tube 8.
More specifically, the exhaust tube 17 is vertically loaded on 11 top center of upper cover, and pumping is housed on exhaust tube 17
Valve 170.Using such structure setting, realizes and the air in rectification tank 1 is subjected to pump drainage.
More specifically, the rectification tank 1 is touched equipped with A liquid levels trigger point, B liquid levels trigger point, C liquid levels successively from top to bottom
Point is sent out, A liquid levels trigger point is flushed with 160 center of upper cross over pipe of liquid level gauge 16, and B liquid levels trigger point is set to slightly above feed liquor
Pipe 14, C liquid levels trigger point are flushed with 161 center of lower cross over pipe of liquid level gauge 16.
A kind of accurate metering system of grease unloading, metering method include the following steps：
Step 1: the oil discharge pipe of oil truck is connected with the inlet tube 14 of rectification tank 1,2 height of lifting platform is adjusted, feed liquor is made
The position of pipe 14 is immediately lower than oil truck baseplane lowest point, opens liquid feed valve 140, allows oil in oil truck in the effect of gravity
Lower inflow rectification tank 1, valve 60 allows oil to be full of liquid hose 15 and pump inlet tube 6 before opening simultaneously pump, opens 8 upper end of gas-guide tube
Vent valve 80 carries out air-discharging operation, until closing vent valve 80 after having oil stream to go out；
Step 2: when entering the fluid position in rectification tank 1 by flow by gravity and reaching on B liquid levels trigger point, pump is opened
Valve 70, oil pump 3, extraction valve 170 and vacuum pump 5 afterwards, the oil in rectification tank 1 are constantly extracted out under the action of oil pump 3, and in oil
Contained air rectification tank 1 is constantly then pumped out by vacuum pump 5, when enter rectification tank 1 in oil mass be more than extracted amount when,
The liquid level of oil can be further up, when more than the liquid level trigger points A, closes vacuum pump 5 and extraction valve 170, deaerates in rectification tank 1
Valve 70 is admitted in oil tank after oily then continuation flows through pump by the extraction of oil pump 3 after the metering of flowmeter 4, when entrance rectification tank
When oil mass in 1 is less than extracted amount, oily liquid level can constantly decline in rectification tank 1, when liquid level drops to the liquid level trigger points A under
When, extraction valve 170 and vacuum pump 5 are opened, when liquid level continues to drop under B liquid levels trigger point, closes vacuum pump 5 and extraction valve
170, it when dropping to the liquid level trigger points C, closes oil pump 3 and stops pump oil, the oil in oil truck can also flow under the influence of gravity at this time
Rectification tank 1, until liquid level, which reaches, then repeats the beginning operation of this step 2 on B liquid levels trigger point, until the oil that oil truck loads
It is drained only, is no longer flow into rectification tank 1；
Step 3: when the oil in oil truck is no longer flow into rectification tank 1, liquid level one oily in rectification tank 1 is settled down at this time
Between B liquid levels trigger point and C liquid levels trigger point, manually opened oil pump 3, until fluid potential drop is to C liquid levels trigger point, due into
The oil stream of gauge 4 of becoming a mandarin all is oil by degassing, can accurately be measured by flowmeter 4, and the volume of rectification tank 1 is much smaller than oil
The oil reserve of tank car, the remaining grease being finally deposited in rectification tank 1 is less and amount is certain, can measure to obtain standard in advance
Really value, therefore the oil mass unloaded in entire oil truck can be measured accurately.
The utility model in order to better understand is expanded on further with reference to multiple embodiments in the utility model
Hold.
Embodiment one：It is 30m by oil-metering system associated gear oil pump metered flow3/ h, the volume 250L of rectification tank are high
Diameter ratio is 2:1；Flowmeter selects mass flowmenter, precision 0.2；Liquid level is calculated as remote level indicator, each valve in system
It, can be in the corresponding valve opening and closing of tri- liquid level trigger point automatic triggers of A, B, C and vacuum pump, oil pump start and stop for electrically operated valve.
Edible oil transport vehicle charge of oil 30t, when carrying out unloading metering, it is 29.89t, rectification tank Residual oil that emptying, which finishes mass flowmenter reading,
Quality 50kg, then it is 0.2% to measure relative error.
Embodiment two：It is 30m by oil-metering system associated gear oil pump metered flow3/ h, the volume 250L of rectification tank are high
Diameter ratio is 3:1；Flowmeter selects mass flowmenter, precision 0.2；Liquid level is calculated as remote level indicator, each valve in system
It, can be in the corresponding valve opening and closing of tri- liquid level trigger point automatic triggers of A, B, C and vacuum pump, oil pump start and stop for electrically operated valve.
Edible oil transport vehicle charge of oil 30t, when carrying out unloading metering, it is 29.91t, rectification tank Residual oil that emptying, which finishes mass flowmenter reading,
Quality 40kg, then it is 0.13% to measure relative error.
Embodiment three：It is 40m by oil-metering system associated gear oil pump metered flow3/ h, the volume 1000L of rectification tank,
Ratio of height to diameter is 4:1；Flowmeter selects mass flowmenter, precision 0.2；Liquid level is calculated as remote level indicator, each valve in system
Door is electrically operated valve, can be opened in the corresponding valve opening and closing of tri- liquid level trigger point automatic triggers of A, B, C and vacuum pump, oil pump
Stop.Edible oil transport vehicle charge of oil 50t, when carrying out unloading metering, it is 49.81t that emptying, which finishes mass flowmenter reading, and rectification tank is residual
Oil quality 80kg, then it is 0.22% to measure relative error.
Example IV：It is 40m by oil-metering system associated gear oil pump metered flow3/ h, the volume 223L of rectification tank are high
Diameter ratio is 4:1；Flowmeter selects oval gear flowmeter, precision 0.2；Liquid level is calculated as remote level indicator, each in system
Valve is electrically operated valve, can be opened in the corresponding valve opening and closing of tri- liquid level trigger point automatic triggers of A, B, C and vacuum pump, oil pump
Stop.Edible oil transport vehicle charge of oil 25m3, when carrying out unloading metering, it is 24.90m that emptying, which finishes mass flowmenter reading,3, rectification tank
Residuum 30L, then it is 0.28% to measure relative error.
Embodiment five：It is 30m by oil-metering system associated gear oil pump metered flow3/ h, the volume 750L of rectification tank are high
Diameter ratio is 2:1；Flowmeter selects oval gear flowmeter, precision 0.2；Liquid level is calculated as remote level indicator, each in system
Valve is electrically operated valve, can be opened in the corresponding valve opening and closing of tri- liquid level trigger point automatic triggers of A, B, C and vacuum pump, oil pump
Stop.Edible oil transport vehicle charge of oil 50m3, when carrying out unloading metering, it is 49.70m that emptying, which finishes mass flowmenter reading,3, rectification tank
Residuum 130L, then it is 0.34% to measure relative error.
The embodiments of the present invention are described above in association with attached drawing, but the utility model be not limited to it is above-mentioned
Specific implementation mode, the above mentioned embodiment is only schematical, rather than restrictive, the common skill of this field
Art personnel are not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the scope of protection of the utility model.
Claims (9)
1. a kind of accurate metering system of grease unloading, it is characterised in that：Including rectification tank (1), lifting platform (2), oil pump (3),
Flowmeter (4) and vacuum pump (5), the rectification tank (1) can be achieved a certain range of raising by lifting platform (2) and reduce,
Rectification tank (1) side is equipped with inlet tube (14), and rectification tank (1) other side is equipped with out liquid hose (15), it is described go out liquid
Hose (15) is connected to the oil pump inlet (30) of oil pump (3), the oil pump liquid outlet of the oil pump (3) by pumping inlet tube (6)
(31) it is connected with and pumps out liquid pipe (7), it is described to pump out to go out set on oil pump equipped with valve (70) after pump, the flowmeter (4) in liquid pipe (7)
On pipeline after liquid mouth (31) and pump between valve (70), the vacuum pump (5) is connected to rectification tank (1) by exhaust tube (17) and pushes up
Portion.
2. a kind of accurate metering system of grease unloading according to claim 1, it is characterised in that：The rectification tank (1)
Including cylinder (10), upper cover (11) and pedestal (12), it is connect with upper cover (11) sealed bottom at the top of the cylinder (10), the cylinder
Body (10) bottom is equipped with the inclined bottom plate (13) of sealed set, and liquid level gauge (16), the upper cover are housed on cylinder (10) side
(11) pressure gauge (18) is housed, the pedestal (12) is fixedly connected by fastening bolt with lifting platform (2) on top.
3. a kind of accurate metering system of grease unloading according to claim 2, it is characterised in that：Cylinder (10) top
Portion is equipped with shell flange (100), and upper cover (11) bottom is equipped with upper cover flange (110), the shell flange (100) and upper cover
Flange (110) is tightly connected by fastening bolt.
4. a kind of accurate metering system of grease unloading according to claim 2, it is characterised in that：The inclined bottom plate (13)
Tilt certain angle setting, the lower end sealing welding of inclined bottom plate (13) surrounding and cylinder (10).
5. a kind of accurate metering system of grease unloading according to claim 2, it is characterised in that：The liquid level gauge (16)
Upper cross over pipe (160) be loaded on shell flange (100) position at the top of the cylinder (10), the lower unicom of the liquid level gauge (16)
It manages (161) and is loaded on position on the lower side in the middle part of cylinder (10), and go out liquid hose (15) interval with loaded on cylinder (10) bottom
Certain distance.
6. a kind of accurate metering system of grease unloading according to claim 1, it is characterised in that：The inlet tube (14)
Position set on upper middle on the left of cylinder (10), the inlet tube (14) are vertically arranged with cylinder (10), the inlet tube
(14) liquid feed valve (140) is housed on.
7. a kind of accurate metering system of grease unloading according to claim 1, it is characterised in that：It is described go out liquid hose
(15) it is set on the right side of cylinder (10) on pedestal (12) position, the pump inlet tube (6) equipped with valve (60) and gas-guide tube before pump
(8), vent valve (80) is housed on the gas-guide tube (8).
8. a kind of accurate metering system of grease unloading according to claim 1, it is characterised in that：The exhaust tube (17)
It is vertically loaded on upper cover (11) top center, extraction valve (170) is housed on the exhaust tube (17).
9. a kind of accurate metering system of grease unloading according to claim 1, it is characterised in that：The rectification tank (1)
It is equipped with A liquid levels trigger point, B liquid levels trigger point, C liquid levels trigger point, A liquid levels trigger point and liquid level gauge successively from top to bottom
(16) upper cross over pipe (160) center flushes, and B liquid levels trigger point is set to slightly above inlet tube (14), the C liquid levels
Trigger point is flushed with lower cross over pipe (161) center of liquid level gauge (16).
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|---|---|---|---|
| CN201820169277.0U CN207866296U (en) | 2018-01-31 | 2018-01-31 | A kind of accurate metering system of grease unloading |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820169277.0U CN207866296U (en) | 2018-01-31 | 2018-01-31 | A kind of accurate metering system of grease unloading |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593013A (en) * | 2018-01-31 | 2018-09-28 | 中国农业科学院油料作物研究所 | A kind of accurate metering system and metering method of grease unloading |
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2018
- 2018-01-31 CN CN201820169277.0U patent/CN207866296U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593013A (en) * | 2018-01-31 | 2018-09-28 | 中国农业科学院油料作物研究所 | A kind of accurate metering system and metering method of grease unloading |
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