CN112882168A - Oil supply system for filling ointment of central reinforcement of high-reliability optical cable - Google Patents
Oil supply system for filling ointment of central reinforcement of high-reliability optical cable Download PDFInfo
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- CN112882168A CN112882168A CN202110121678.5A CN202110121678A CN112882168A CN 112882168 A CN112882168 A CN 112882168A CN 202110121678 A CN202110121678 A CN 202110121678A CN 112882168 A CN112882168 A CN 112882168A
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- ointment
- optical cable
- storage cylinder
- filling
- oil supply
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- 230000003287 optical effect Effects 0.000 title claims abstract description 18
- 230000002787 reinforcement Effects 0.000 title claims abstract description 8
- 239000002674 ointment Substances 0.000 title claims description 36
- 238000003860 storage Methods 0.000 claims abstract description 78
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 3
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 3
- 241001330002 Bambuseae Species 0.000 abstract description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 3
- 239000011425 bamboo Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4483—Injection or filling devices
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention provides an oil supply system for filling factice of a central reinforcement of an optical cable with high reliability, which comprises at least one storage cylinder, wherein an end cover is detachably arranged at the upper end of the storage cylinder; the end cover comprises a cover body part and a matching part at the lower end of the cover body part, the matching part is columnar, a sealing groove is arranged on the outer wall of the matching part, and a sealing ring is arranged in the sealing groove; the outer edge of the cover body part is provided with a connecting plate extending downwards, the storage cylinder is provided with a connecting seat corresponding to the connecting plate, and the connecting plate and the connecting seat are fixed through a connecting piece; the main air inlet at the upper end of the storage cylinder is connected with an air supply assembly; the lower end of the discharge pipeline extends to the bottom of the storage barrel. In this oil supply system, the atmospheric pressure that produces by the air feed unit impresses the oleamen in the ejection of compact pipeline, is difficult for breaking down, and oleamen filling device job stabilization nature is good, and in addition, the end cover combines firmly with storage section of thick bamboo, and the leakproofness is good, because the end cover is detachable construction design, and the assembly of structure is very convenient in the system, and operational environment's neatly degree is higher, pollutes for a short time.
Description
Technical Field
The invention belongs to the technical field of optical cable production equipment, and particularly relates to an oil supply system for filling factice of a central reinforcement of an optical cable with high reliability.
Background
In order to ensure that the cable core of the optical cable has water-blocking performance, the water-blocking of the optical cable is generally carried out by adopting an ointment filling method. In the factice filling process, the reinforcing piece is placed in an oil filling mold, then the factice is filled to the surface of the reinforcing piece, and the sleeve is twisted on the reinforcing piece through twisting. In the prior art, the factice filling mainly comprises that factice is pumped out by a factice pump and is supplied to a factice filling device through a hose, a reinforcing piece penetrates through the filling device again, the factice is distributed on the reinforcing piece and then enters a twisting table, but the factice can enter the factice pump during pumping through a pipeline, the factice pump has extremely high fault, once the factice pump breaks down, the machine needs to be stopped for maintenance, the work efficiency is influenced, meanwhile, the pollution to the work environment is serious during maintenance, and therefore improvement is needed.
Disclosure of Invention
In view of the above, the invention provides an oil supply system for filling factice of a central reinforcement of an optical cable, which aims to overcome the defects in the prior art, and not only effectively improves the stability of oil supply, but also is convenient to assemble and time-saving and labor-saving in maintenance.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an oil supply system for filling factice of a central reinforcement of a high-reliability optical cable comprises at least one storage cylinder, wherein an end cover is detachably arranged at the upper end of the storage cylinder;
the end cover comprises a cover body part and a matching part at the lower end of the cover body part, the matching part is columnar, a sealing groove is arranged on the outer wall of the matching part, and a sealing ring is arranged in the sealing groove; the outer edge of the cover body part is provided with a connecting plate extending downwards, the storage cylinder is provided with a connecting seat corresponding to the connecting plate, and the connecting plate and the connecting seat are fixed through a connecting piece;
the end cover is provided with a feeding pipeline and a discharging pipeline, and the feeding pipeline of each storage cylinder is connected with the main oil tank; the upper end of the storage cylinder is provided with a main air inlet, and an air supply assembly is connected to the main air inlet; the lower end of the discharge pipeline extends to the bottom of the storage barrel.
Further, install the feeding control valve on the inlet pipe way, install liquid level controller in the storage cylinder, liquid level controller and feeding control valve electricity are connected.
Furthermore, one end of the feeding pipeline extending into the storage barrel is provided with an inclined part which inclines towards the inner wall of the storage barrel, and the lower end of the inclined part is close to the inner wall of the storage barrel.
Furthermore, a control valve is arranged on the feeding pipeline.
Furthermore, the lower end of the discharge pipeline is provided with a chamfer.
Further, the storage barrel is a stainless steel barrel.
Further, the gas supply assembly includes a compressed gas supply line connected to the primary gas inlet.
Further, the connecting piece adopts a screw or a pin.
Compared with the prior art, the invention has the following advantages:
this oil feeding system structural design is reasonable, and the oleamen keeps in storing up a section of thick bamboo, and during the filling oleamen, the discharge pipeline is impressed the oleamen to atmospheric pressure by the production of air feed unit, supplies for corresponding oleamen filling device, and in the oleamen can not get into the pipeline of air feed unit, it is good to store up a section of thick bamboo discharge pipeline patency, is difficult for breaking down, ensures that oleamen filling device steady operation, improves and packs work efficiency. Simultaneously, the end cover combines firmly with storage cylinder, and the leakproofness is good, because the end cover is detachable construction design, the assembly of structure spare is very convenient in the system, and operational environment's neatness is higher, and the discharging pipeline is difficult for breaking down, and storage cylinder part oleamen also is difficult for running out to emit, pollutes littleer.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the present invention with a high level controller and a low level controller;
FIG. 3 is a schematic view of the alternate gas source in the practice of the invention;
FIG. 4 is a schematic view illustrating a bottom of a cartridge having a recessed portion according to an embodiment of the present invention;
FIG. 5 is a schematic view illustrating a connecting plate disposed outside an end cap according to an embodiment of the present invention;
fig. 6 is a schematic view of the structure of the end cap portion of fig. 5.
Description of reference numerals:
1-storage cylinder; 2-end cap; 3-a feed line; 4-a discharge pipeline; 5-a cap portion; 6-a mating portion; 7-a guiding conical surface; 8-sealing ring; 9-a connecting plate; 10-a connecting seat; 11-a primary air inlet; 12-a gas supply unit; 13-a feed control valve; 14-a liquid level controller; 15-an inclined portion; 16-spare air inlet; 17-standby gas source; 18-a pressure sensor; 19-groove section.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
The utility model provides a high reliability optical cable center reinforcement oleamen fills uses oil feeding system, as shown in fig. 1 to 4, includes at least one storage cylinder 1, storage cylinder upper end demountable installation has end cover 2, installs feed line 3 and discharge pipe 4 on the end cover, and the feed line of each storage cylinder all is connected with main oil tank, and the discharge pipe of each storage cylinder all is connected with the feed end of the oleamen filling device that corresponds. Preferably, the storage cylinder is a stainless steel cylinder.
The main oil tank concentrates and stores the factice, when the amount of the factice in the storage cylinder is lower, the factice in the storage cylinder is supplemented, the main oil tank does not directly supply oil to the factice filling device in real time, but the storage cylinder supplies oil to the factice filling device, the oil supply device is higher in use reliability and better in use effect, the condition of halt due to faults is avoided to the maximum extent, and the production efficiency is guaranteed.
The end cover comprises a cover body part 5 and a matching part 6 at the lower end of the cover body part, the matching part is columnar, a guide conical surface 7 is arranged at the lower end of the outer wall of the matching part, 1-2 sealing grooves are formed in the outer wall of the matching part, and a sealing ring 8 is arranged in each sealing groove. The guiding conical surface is convenient for the matching part to be inserted into the opening at the upper end of the storage cylinder, and the sealing ring is matched with the inner wall of the storage cylinder to keep the sealing performance of the storage cylinder. The end cover adopts detachable structural design, and parts such as feed line, liquid level controller all can directly assemble on the end cover, and the integrated level is high, and the storage cylinder can be assembled to the modularization production assembly operation on whole for oil feeding system assembly is more convenient, and is more labour saving and time saving. Meanwhile, the storage barrel can be integrally detached, modular overhaul and maintenance of the end cover part are facilitated, and the working efficiency is improved.
In an alternative embodiment, as shown in fig. 5 and 6, a downwardly extending connecting plate 9 is provided at the outer edge of the cover portion, and a connecting seat 10 corresponding to the connecting plate is provided on the cartridge, the connecting plate and the connecting seat being required to avoid the main air inlet and the pipeline of the air supply unit.
The connecting plate is fixed with the connecting seat through the connecting piece on the connecting plate, and then the end cover and the storage cylinder are fixed. For example, the connecting piece adopts a connecting screw or a bolt, and when the connecting piece is fixed, the connecting screw (or the bolt) passes through a through hole on the connecting plate and is fixed in a mounting hole of the connecting seat, so that the situation that the pressure in the storage cylinder is increased and the end cover is pushed open is effectively prevented.
The upper end of the storage cylinder is provided with a main air inlet 11, and an air supply unit 12 is connected to the main air inlet; the lower end of the discharge pipeline extends to the bottom of the storage barrel. It is noted that for large production lines, a plurality of oil supply units may be arranged, the reservoir of each oil supply unit being supplied with factice from a main tank. The upper end of the storage cylinder is provided with a main air inlet, and an air supply unit is connected to the main air inlet; the lower end of the discharge pipeline extends to the bottom of the storage barrel.
Usually, a feed control valve 13 is installed on the feed pipe, and when ointment is required to be injected into the storage barrels, the control valve can be opened to inject ointment into the storage barrels from the main oil tank, the ointment is temporarily stored in each storage barrel, and the ointment is pressed into the discharge pipe by the pressure of the air supply unit according to the requirement and is supplied to the corresponding ointment filling device.
In an alternative embodiment, a level controller 14 is mounted within the cartridge and is electrically connected to the feed control valve. The amount of ointment in the storage cylinder is detected in real time through a liquid level controller (a commercially available liquid level sensor can be adopted), when the liquid level of the ointment is lower than a set value, a signal is fed back to a feeding control valve, the feeding control valve is opened, and the ointment is supplied to the storage cylinder.
For example, the level controller includes a high level sensor and a low level sensor, both of which are connected to the feeding control valve, and when the level of the grease in the barrel is higher than that of the high level controller, the feeding is stopped, and when the level of the grease in the barrel is lower than that of the low level controller, the feeding is performed. Of course, a person skilled in the art may also select a liquid level controller by himself, as long as liquid level detection can be achieved and a signal is fed back to the feeding control valve, and the liquid level controller (liquid level sensor) is applied to the conventional technology, and therefore, the details are not repeated.
The end of the feed line extending into the reservoir has an inclined portion 15 which is inclined towards the inner wall of the reservoir and the lower end of which is adjacent to the inner wall of the reservoir. Usually, the lower end of the discharging pipeline is provided with a bevel face, so that a certain gap is ensured between the tail end of the discharging pipeline and the bottom of the storage barrel, and the ointment can be smoothly pressed into the discharging pipeline. Preferably, the tail end of the feeding pipeline is also provided with a chamfer, so that a certain gap is ensured between the tail end of the feeding pipeline and the inner wall of the storage cylinder, and the ointment can be smoothly injected into the storage cylinder.
In an alternative embodiment, the gas supply unit comprises a compressed gas supply line connected to the gas inlet. During the concrete implementation, the compressed gas supply pipeline can be connected with the compressor, the compressed air generated by the compressor pressurizes the storage cylinder, and the ointment in the storage cylinder is pressed into the discharge pipeline and supplied to the ointment filling device. Each storage cylinder is supplied with oil by pressure generated by compressed gas, so that ointment is prevented from entering an ointment pump during oil supply, and adverse effects caused by damage of the ointment pump are greatly reduced. In addition, each storage cylinder is connected with the main oil tank, the storage cylinders serve as intermediate transition containers and temporarily store ointment with a certain volume, and even if a pipeline connected with the main oil tank and the main oil tank, a feeding pump connected with the main oil tank and used for supplying oil to the storage cylinders and the like fail, the ointment in the storage cylinders can supply the ointment to the ointment filling device for a period of time, so that production halt is avoided.
In order to ensure the normal use of the device, a pressure sensor 18 can be arranged at the main air inlet and is connected with an alarm device, when the pressure sensor detects that the pressure of the gas supplied by the compressed gas supply pipeline is lower than a set value, a signal is fed back to the alarm device, and the alarm device gives an alarm to remind field workers of processing in time.
In an optional embodiment, a standby air inlet 16 may be further disposed on the storage cylinder, and a standby air source 17 is connected to the standby air inlet, for example, a gas control valve may be installed at the standby air inlet, the control valve may be manual, or may be electrically connected to a pressure sensor at the main air inlet by using an interlock circuit or a relay, so as to implement automatic control, and when the pressure at the main air inlet is smaller than a set value, the standby air at the standby air inlet is controlled to be opened, so as to automatically connect the standby air source.
Namely, once the compressed gas supply pipeline has abnormal gas supply (for example, the gas supply pipeline is damaged or the gas supply is interrupted or the pressure is insufficient due to the failure of the compressor of the gas source and the like), the standby gas source is connected through the standby gas inlet, the standby gas source is used for supplying gas into the storage cylinder, the ointment is pressed into the discharge pipeline from the storage cylinder, and the ointment is supplied to the ointment filling device for use. For example, the spare air source may be a commercially available accumulator, and when the control valve of the spare air inlet is opened, the accumulator applies pressure to the ointment in the reservoir to press the ointment into the discharge pipeline.
In an alternative embodiment, in order to ensure the stable oil supply of the storage cylinder and to maximize the advantage of the storage cylinder as an intermediate storage tank, the center of the bottom of the storage cylinder is provided with a groove portion 19, the bottom surface of the storage cylinder is obliquely arranged, the groove portion is positioned at the lowest part of the bottom of the storage cylinder, the lower end of the discharge pipeline extends to the groove portion, ointment in the storage cylinder is gathered towards the groove portion all the time along with the reduction of the dosage, and the ointment in the storage cylinder can be smoothly pressed into the discharge pipeline.
The invention has reasonable structural design, the factice is temporarily stored in the storage cylinder, when the factice is filled, the factice is pressed into the discharge pipeline by the air pressure generated by the air supply unit and is supplied to the corresponding factice filling device, the factice cannot enter the pipeline of the air supply unit, the discharge pipeline of the storage cylinder has good smoothness and is not easy to break down, the stable work of the factice filling device is ensured, the discharge pipeline is not easy to break down, and the factice in the storage cylinder is not easy to leak, so the working environment has higher cleanliness and less pollution.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a high reliability optical cable center reinforcement oleamen fills uses oil feeding system which characterized in that: the device comprises at least one storage barrel, wherein an end cover is detachably arranged at the upper end of the storage barrel;
the end cover comprises a cover body part and a matching part at the lower end of the cover body part, the matching part is columnar, a sealing groove is arranged on the outer wall of the matching part, and a sealing ring is arranged in the sealing groove; the outer edge of the cover body part is provided with a connecting plate extending downwards, the storage cylinder is provided with a connecting seat corresponding to the connecting plate, and the connecting plate and the connecting seat are fixed through a connecting piece;
the end cover is provided with a feeding pipeline and a discharging pipeline, and the feeding pipeline of each storage cylinder is connected with the main oil tank; the upper end of the storage cylinder is provided with a main air inlet, and an air supply assembly is connected to the main air inlet; the lower end of the discharge pipeline extends to the bottom of the storage barrel.
2. The oil supply system for filling the ointment of the central reinforcing member of the optical cable with high reliability as claimed in claim 1, wherein: the feeding pipeline is provided with a feeding control valve, the storage barrel is internally provided with a liquid level controller, and the liquid level controller is electrically connected with the feeding control valve.
3. The oil supply system for filling the ointment of the central reinforcing member of the optical cable with high reliability as claimed in claim 1, wherein: one end of the feeding pipeline extending into the storage barrel is provided with an inclined part which inclines towards the inner wall of the storage barrel, and the lower end of the inclined part is close to the inner wall of the storage barrel.
4. The oil supply system for filling the ointment of the central reinforcing member of the optical cable with high reliability as claimed in claim 1, wherein: and a control valve is arranged on the feeding pipeline.
5. The oil supply system for filling the ointment of the central reinforcing member of the optical cable with high reliability as claimed in claim 1, wherein: the lower end of the discharging pipeline is provided with a chamfer.
6. The oil supply system for filling the ointment of the central reinforcing member of the optical cable with high reliability as claimed in claim 1, wherein: the storage barrel is a stainless steel barrel.
7. The oil supply system for filling the ointment of the central reinforcing member of the optical cable with high reliability as claimed in claim 1, wherein: the gas supply assembly includes a compressed gas supply line connected to the primary gas inlet.
8. The oil supply system for filling the ointment of the central reinforcing member of the optical cable with high reliability as claimed in claim 1, wherein: the connecting piece adopts a screw or a pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110121678.5A CN112882168A (en) | 2021-01-28 | 2021-01-28 | Oil supply system for filling ointment of central reinforcement of high-reliability optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110121678.5A CN112882168A (en) | 2021-01-28 | 2021-01-28 | Oil supply system for filling ointment of central reinforcement of high-reliability optical cable |
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| Publication Number | Publication Date |
|---|---|
| CN112882168A true CN112882168A (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110121678.5A Pending CN112882168A (en) | 2021-01-28 | 2021-01-28 | Oil supply system for filling ointment of central reinforcement of high-reliability optical cable |
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| CN (1) | CN112882168A (en) |
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|---|---|---|---|---|
| CN202162103U (en) * | 2011-07-29 | 2012-03-14 | 朱之义 | Barrel body of atomizer |
| CN203877126U (en) * | 2014-04-23 | 2014-10-15 | 东华大学 | Iron drum for holding chemical materials |
| CN204022453U (en) * | 2014-08-05 | 2014-12-17 | 九江力山环保科技有限公司 | The device of oil plant or other liquid in a kind of air pressure metal bucket |
| CN104492345A (en) * | 2014-12-01 | 2015-04-08 | 浙江华康药业股份有限公司 | Discharging device and process for catalytic hydrogenation reaction |
| CN205868640U (en) * | 2016-07-21 | 2017-01-11 | 江苏亨通光电股份有限公司 | Optical cable oleamen spraying device |
| CN207482394U (en) * | 2017-11-15 | 2018-06-12 | 浙江实美润滑科技有限公司 | A kind of industrial chemicals metal bucket |
| CN111498780A (en) * | 2020-03-26 | 2020-08-07 | 中海石油深海开发有限公司 | Automatic recovery device for leakage medium of plunger pump packing |
| CN112090657A (en) * | 2020-09-23 | 2020-12-18 | 湖南中科光电有限公司 | Factice spraying device for optical cable manufacturing and using method thereof |
-
2021
- 2021-01-28 CN CN202110121678.5A patent/CN112882168A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202162103U (en) * | 2011-07-29 | 2012-03-14 | 朱之义 | Barrel body of atomizer |
| CN203877126U (en) * | 2014-04-23 | 2014-10-15 | 东华大学 | Iron drum for holding chemical materials |
| CN204022453U (en) * | 2014-08-05 | 2014-12-17 | 九江力山环保科技有限公司 | The device of oil plant or other liquid in a kind of air pressure metal bucket |
| CN104492345A (en) * | 2014-12-01 | 2015-04-08 | 浙江华康药业股份有限公司 | Discharging device and process for catalytic hydrogenation reaction |
| CN205868640U (en) * | 2016-07-21 | 2017-01-11 | 江苏亨通光电股份有限公司 | Optical cable oleamen spraying device |
| CN207482394U (en) * | 2017-11-15 | 2018-06-12 | 浙江实美润滑科技有限公司 | A kind of industrial chemicals metal bucket |
| CN111498780A (en) * | 2020-03-26 | 2020-08-07 | 中海石油深海开发有限公司 | Automatic recovery device for leakage medium of plunger pump packing |
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Application publication date: 20210601 |
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