CN220227123U - Oil return device of vertical reciprocating piston compressor and compressor - Google Patents
Oil return device of vertical reciprocating piston compressor and compressor Download PDFInfo
- Publication number
- CN220227123U CN220227123U CN202322252008.4U CN202322252008U CN220227123U CN 220227123 U CN220227123 U CN 220227123U CN 202322252008 U CN202322252008 U CN 202322252008U CN 220227123 U CN220227123 U CN 220227123U
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- 238000002955 isolation Methods 0.000 claims abstract description 86
- 238000007790 scraping Methods 0.000 claims abstract description 44
- 230000000903 blocking effect Effects 0.000 claims abstract description 28
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 266
- 239000010687 lubricating oil Substances 0.000 abstract description 76
- 230000003749 cleanliness Effects 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model provides an oil return device of a vertical reciprocating piston compressor and the compressor, wherein the vertical reciprocating piston compressor comprises: the device comprises a crankcase, a cylinder, an isolation bin and a piston rod; the oil return device comprises: the oil wiper is arranged at the first opening; the oil guide disc is positioned below the oil wiper and provided with a first through hole extending along the thickness direction of the oil guide disc; the oil blocking sleeve is positioned between the oil wiper and the oil guide disc, one end part of the oil blocking sleeve is fixedly connected with the isolation bin, and the other end part of the oil blocking sleeve is fixedly connected with the oil guide disc and is provided with an oil drain port communicated with a sleeve cavity of the oil blocking sleeve; the piston rod passes through the first through hole in a matched mode and stretches into the sleeve cavity, and the sleeve cavity is communicated with the oil discharging end of the oil wiper. The utility model can realize two-pass scraping of the lubricating oil attached to the piston rod, can effectively clean the lubricating oil attached to the piston rod, has high cleanliness of the piston rod, and is favorable for solving the problem that the lubricating oil is brought into the isolation chamber to form lubricating oil leakage.
Description
Technical Field
The embodiment of the utility model relates to the technical field of polysilicon production, in particular to an oil return device of a vertical reciprocating piston compressor and the compressor.
Background
In polysilicon production, the vertical reciprocating compressor takes on the role of providing hydrogen for the plant fluidization reaction.
The crankcase at the bottom of the vertical piston compressor body is used as an oil tank of the compressor and stores lubricating oil of the compressor. When the vertical reciprocating compressor operates, the piston rod reciprocates between the crankcase and the cylinder. By adhering to the piston rod, the lubrication oil in the crankcase is carried upward by the piston rod into the isolation chamber of the compressor isolation bin, creating a lubrication oil leak.
Because vertical reciprocating compressor adopts vertical arrangement form in comparison with traditional compressor, current oil return device is applied to vertical reciprocating compressor back to the clean effect of lubricating oil on adhering to the piston rod poor, and the cleanliness factor of piston rod is low, and lubricating oil still is brought into the isolation cavity in a large number and forms lubricating oil leakage.
Disclosure of Invention
The embodiment of the utility model provides an oil return device of a vertical reciprocating piston compressor and the compressor, which are used for solving the problems that the conventional oil return device has poor cleaning effect on lubricating oil attached to a piston rod after being applied to the vertical reciprocating compressor and the cleanliness of the piston rod is low and the lubricating oil is brought into an isolation chamber in a large amount to form lubricating oil leakage compared with the conventional vertical reciprocating compressor.
In order to solve the technical problems, the utility model is realized as follows:
in a first aspect, embodiments of the present utility model provide an oil return apparatus for a vertical reciprocating piston compressor, the vertical reciprocating piston compressor comprising: the device comprises a crankcase, a cylinder, an isolation bin and a piston rod; the crankcase is positioned below the cylinder, the isolation bin is positioned between the crankcase and the cylinder, the isolation bin is provided with an isolation cavity, and the isolation bin is also provided with a first opening and a second opening which are communicated with the isolation cavity; one end portion of the piston rod extends into the crankcase, the other end portion extends into the isolation chamber through the first opening and into the cylinder through the second opening, the piston rod can reciprocate between the crankcase and the cylinder, and the oil return device comprises:
the oil wiper is arranged at the first opening;
the oil guide disc is positioned below the oil wiper and provided with a first through hole extending along the thickness direction of the oil guide disc;
the oil blocking sleeve is positioned between the oil wiper and the oil guide disc, one end part of the oil blocking sleeve is fixedly connected with the isolation bin, and the other end part of the oil blocking sleeve is fixedly connected with the oil guide disc and is provided with an oil discharge port communicated with a sleeve cavity of the oil blocking sleeve; the piston rod passes through the first through hole in a matched mode and stretches into the sleeve cavity, and the sleeve cavity is communicated with the oil discharging end of the oil wiper.
Alternatively, the process may be carried out in a single-stage,
the oil guiding disc comprises:
the disc body is in a disc shape with an upward concave edge, and the first through hole is positioned in the disc body;
the oil blocking device is arranged on one side disc surface of the disc body opposite to the crankcase.
Alternatively, the process may be carried out in a single-stage,
the oil catcher includes:
the mounting seat is arranged on one side disc surface of the disc body opposite to the crankcase;
oil-blocking ring;
the oil scraper ring and the oil resistance ring are overlapped on the mounting seat, the oil scraper ring is positioned at the lower side of the oil resistance ring, and the piston rod passes through the oil scraper ring and the oil resistance ring in a matched mode.
Alternatively, the process may be carried out in a single-stage,
the oil scraping rings are at least two, the oil scraping rings and the oil resistance rings are overlapped on the mounting seat, and all the oil scraping rings are located on the lower side of the oil resistance rings.
Alternatively, the process may be carried out in a single-stage,
the isolation bin also has a third opening in communication with the isolation chamber;
the oil return device further includes:
the oil discharge pipe is positioned between the isolation bin and the oil guide disc, the first end part of the oil discharge pipe is communicated with the isolation cavity through the third opening, and the second end part of the oil discharge pipe is provided with an oil filter.
Alternatively, the process may be carried out in a single-stage,
the oil drain pipe is a U-shaped pipe, and the connection part between the first end part and the third opening is positioned above the oil filter.
Alternatively, the process may be carried out in a single-stage,
the oil filter is detachably provided at the second end portion.
Alternatively, the process may be carried out in a single-stage,
the oil drain holes are uniformly distributed on the peripheral side wall of the end part of one side, opposite to the oil guide disc, of the oil blocking sleeve.
Alternatively, the process may be carried out in a single-stage,
one side end part of the oil blocking sleeve is connected with the isolation bin through a fastener, and the other end part of the oil blocking sleeve is welded and fixed with the oil guiding disc.
In a second aspect, embodiments of the present utility model provide a vertical reciprocating piston compressor comprising: the device comprises a crankcase, a cylinder, an isolation bin and a piston rod; the crankcase is positioned below the cylinder, the isolation bin is positioned between the crankcase and the cylinder, the isolation bin is provided with an isolation cavity, and the isolation bin is also provided with a first opening and a second opening which are communicated with the isolation cavity; one end portion of the piston rod extends into the crankcase, the other end portion extends into the isolation chamber through the first opening and into the cylinder through the second opening, the piston rod is capable of reciprocating between the crankcase and the cylinder, and the piston rod further comprises: an oil return device as claimed in any one of the first aspects.
In the implementation of the present utility model, the oil return device includes: the oil wiper is arranged at the first opening; the oil guide disc is positioned below the oil wiper and provided with a first through hole extending along the thickness direction of the oil guide disc; the oil blocking sleeve is positioned between the oil wiper and the oil guide disc, one end part of the oil blocking sleeve is fixedly connected with the isolation bin, and the other end part of the oil blocking sleeve is fixedly connected with the oil guide disc and is provided with an oil drain port communicated with a sleeve cavity of the oil blocking sleeve; the piston rod passes through the first through hole in a matched mode and stretches into the sleeve cavity, and the sleeve cavity is communicated with the oil discharging end of the oil wiper. The oil return device provided by the embodiment of the utility model can realize two-pass scraping of the lubricating oil attached to the piston rod, can effectively clean the lubricating oil attached to the piston rod, has high cleanliness of the piston rod, and is beneficial to solving the problem that the lubricating oil is brought into the isolation chamber to form lubricating oil leakage.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic view of a vertical reciprocating piston compressor;
FIG. 2 is an enlarged partial schematic view of an oil return apparatus according to an embodiment of the present utility model corresponding to position A in FIG. 1, wherein the oil return apparatus is also shown in longitudinal section;
wherein: 100. a crankcase; 200 cylinders; 300. an isolation bin; 300a, isolating the chamber; 301. a first opening; 302. a second opening; 303. a third opening; 400. a piston rod; 500. an oil return device; 600. a driving motor;
1. an oil wiper;
2. an oil guiding disc; 2a, a first through hole; 21. a tray body; 22. an oil-blocking device; 23. a mounting base; 24. oil-blocking ring; 25. oil scraper rings;
3. an oil-blocking sleeve; 3a, sleeving the cavity; 31. an oil drain port;
4. an oil drain pipe; 41. an oil filter.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, an embodiment of the present utility model provides an oil return device of a vertical type reciprocating piston compressor, the vertical type reciprocating piston compressor including: crankcase 100, cylinder 200, isolation bin 300 and piston rod 400; the crankcase 100 is located below the cylinder 200, the isolation bin 300 is located between the crankcase 100 and the cylinder 200, the isolation bin 300 has an isolation chamber 300a, and the isolation bin 300 further has a first opening 301 and a second opening 302 that are in communication with the isolation chamber 300 a; one end of the piston rod 400 protrudes into the crankcase 100, the other end protrudes into the isolation chamber 300a through the first opening 301 and protrudes into the cylinder 200 through the second opening 302, the piston rod 400 is capable of reciprocating between the crankcase 100 and the cylinder 200,
referring to fig. 2, the oil return apparatus 500 includes:
the oil wiper 1 is arranged at the first opening 301;
an oil guiding disc 2 positioned below the oil wiper 1 and having a first through hole 2a extending in a thickness direction of the oil guiding disc 2;
the oil resistance sleeve 3 is positioned between the oil wiper 1 and the oil guide disc 2, one end part of the oil resistance sleeve is fixedly connected with the isolation bin 300, and the other end part of the oil resistance sleeve is fixedly connected with the oil guide disc 2 and is provided with an oil discharge port 31 communicated with a sleeve cavity 3a of the oil resistance sleeve 3; the piston rod 400 is inserted into the sleeve cavity 3a through the first through hole 2a in a matched manner, and the sleeve cavity 3a is communicated with the oil discharging end of the oil wiper 1.
In practice, when the vertical reciprocating piston compressor is operated, the piston rod 400 is driven to reciprocate between the crankcase 100 and the cylinder 200, and the reciprocation of the piston rod 400 tends to bring the lubrication oil in the crankcase 100 into the isolation chamber 300a to form a lubrication oil leak. With the oil return device 500 of the embodiment of the utility model, the oil wiper 1 scrapes the lubricating oil attached to the piston rod 400, thereby preventing the lubricating oil from entering the isolation chamber 300a and effectively avoiding the leakage of the lubricating oil. Further, the scraped lubricating oil enters the sleeve cavity 3a of the oil-blocking sleeve 3 through the oil discharge end of the oil wiper 1, and the lubricating oil accumulated in the sleeve cavity 3a is discharged out of the sleeve cavity 3a through the oil discharge port 31 and flows back into the crankcase 100 through the oil guide disc 2.
The first through hole 2a also plays a role of scraping oil, and the first through hole 2a and the oil scraper 1 form a two-pass scraping operation. For example, when the piston rod 400 is driven to move from the crankcase 100 to the cylinder 200, the lubricating oil adhering to the piston rod 400 is scraped once by the first through hole 2a, that is, the first scraping operation. In the first scraping operation, the scraped lubricating oil remains on the surface of the oil guide disc 2 opposite to one side of the crankcase 100, and gradually flows back into the crankcase 100. Subsequently, when the piston rod 400 is driven to move from the crankcase 100 to the cylinder 200 or to move from the cylinder 200 to the crankcase 100, the lubricating oil still attached to the piston rod 400 after the first scraping operation is scraped by the oil scraper 1 once more, that is, the second scraping operation. In the second scraping operation, the lubricating oil scraped by the oil scraper 1 enters the sleeve cavity 3a of the oil-blocking sleeve 3 through the oil discharge end of the oil scraper 1, and the lubricating oil accumulated in the sleeve cavity 3a is discharged out of the sleeve cavity 3a through the oil discharge port 31 and flows back to the crankcase 100 through the oil guide disc 2. By adopting the oil return device 500 provided by the embodiment of the utility model, the lubricating oil attached to the piston rod 400 can be scraped in two passes, the lubricating oil attached to the piston rod 400 can be effectively cleaned, and the lubricating oil can be prevented from being brought into the isolation chamber 300a to form lubricating oil leakage.
In the practice of the present utility model, oil return apparatus 500 comprises: the oil wiper 1 is arranged at the first opening 301; an oil guiding disc 2 positioned below the oil wiper 1 and having a first through hole 2a extending in a thickness direction of the oil guiding disc 2; the oil resistance sleeve 3 is positioned between the oil wiper 1 and the oil guide disc 2, one end part of the oil resistance sleeve is fixedly connected with the isolation bin 300, and the other end part of the oil resistance sleeve is fixedly connected with the oil guide disc 2 and is provided with an oil discharge port 31 communicated with a sleeve cavity 3a of the oil resistance sleeve 3; the piston rod 400 is inserted into the sleeve cavity 3a through the first through hole 2a in a matched manner, and the sleeve cavity 3a is communicated with the oil discharging end of the oil wiper 1. The oil return device 500 provided by the embodiment of the utility model can realize two-pass scraping of the lubricating oil attached to the piston rod 400, can effectively clean the lubricating oil attached to the piston rod 400, has high cleanliness, and is beneficial to solving the problem that the lubricating oil is brought into the isolation chamber 300a to form lubricating oil leakage.
In some embodiments of the present utility model, optionally, referring to fig. 1 and 2, the oil guiding disc 2 includes:
the disk 21 is in a disk shape recessed upward from the edge, and the first through hole 2a is located in the disk 21;
the oil catcher 22 is provided on a side surface of the disc body 21 opposite to the crankcase 100.
In the embodiment of the present utility model, the oil catcher 22 and the oil wiper 1 form a two-pass scraping operation. For example, when the piston rod 400 is driven to move from the crankcase 100 to the cylinder 200, the lubricant adhering to the piston rod 400 is scraped once by the lubricant stopper 22, i.e., the first scraping operation. In the first scraping operation, the scraped lubricating oil remains on the surface of the disk 21 on the side opposite to the crankcase 100, and gradually returns to the crankcase 100. Subsequently, when the piston rod 400 is driven to move from the crankcase 100 to the cylinder 200 or to move from the cylinder 200 to the crankcase 100, the lubricating oil still attached to the piston rod 400 after the first scraping operation is scraped by the oil scraper 1 once more, that is, the second scraping operation. In the second scraping operation, the lubricating oil scraped by the oil scraper 1 enters the sleeve cavity 3a of the oil-blocking sleeve 3 through the oil discharge end of the oil scraper 1, and the lubricating oil accumulated in the sleeve cavity 3a is discharged out of the sleeve cavity 3a through the oil discharge port 31 and flows back to the crankcase 100 through the disc body 21. By adopting the oil return device 500 provided by the embodiment of the utility model, the lubricating oil attached to the piston rod 400 can be scraped in two passes, the lubricating oil attached to the piston rod 400 can be effectively cleaned, and the lubricating oil can be prevented from being brought into the isolation chamber 300a to form lubricating oil leakage.
It should be noted that, compared with the first through hole 2a, the oil resistor 22 is adopted to perform the first scraping, so that less lubricating oil remains in the piston rod 400 after the first scraping, and the cleaning efficiency is higher; compared with the two-pass scraping operation formed by the first through hole 2a and the oil wiper 1, the two-pass scraping operation formed by the oil blocker 22 and the oil wiper 1 can clean the lubricating oil attached to the piston rod 400 more cleanly, and can more effectively prevent the lubricating oil from being brought into the isolation chamber 300a to form lubricating oil leakage.
In the embodiment of the utility model, the disc body 21 is in a disc shape with a concave edge upwards, so that the efficiency of lubricating oil on any side disc surface in the thickness direction of the disc body 21 flowing out of the disc body 21 can be accelerated by utilizing gravity, and the oil return device 500 in the embodiment of the utility model is further beneficial to realizing high-efficiency oil return. Wherein, the lubricating oil on any side of the disk surface in the thickness direction of the disk body 21, for example: in the first scraping operation, scraped lubricating oil remaining on the disc surface of the disc body 21 on the side opposite to the crankcase 100; in the second scraping operation, the lubricating oil flowing into the tray body 21 is discharged from the jacket cavity 3a through the oil drain port 31.
In some embodiments of the present utility model, optionally, the angle formed between the edge of the disc 21 and the center of the disc 21 has a value of 2 °.
In some embodiments of the present utility model, optionally, referring to fig. 1 and 2, the oil catcher 22 includes:
the mounting seat 23 is arranged on one side disc surface of the disc body 21 opposite to the crankcase 100;
an oil-blocking ring 24;
the oil scraper ring 25, the oil scraper ring 25 and the oil resistance ring 24 are superposed on the mounting seat 23, and the oil scraper ring 25 is positioned at the lower side of the oil resistance ring 24, and the piston rod 400 passes through the oil scraper ring 25 and the oil resistance ring 24 in a matched manner.
In the embodiment of the utility model, the oil scraper ring 25 and the oil resistance ring 24 are overlapped on the mounting seat 23, the oil scraper ring 25 is positioned at the lower side of the oil resistance ring 24, and the piston rod 400 passes through the oil scraper ring 25 and the oil resistance ring 24 in a matched manner, and the oil scraper ring 25 and the oil resistance ring 24 are combined for first scraping. The oil scraper ring 25, the oil resistance ring 24 and the oil wiper 1 form a two-pass scraping operation. For example, when the piston rod 400 is driven to move from the crankcase 100 to the cylinder 200, the lubricating oil attached to the piston rod 400 is scraped once, i.e., a first scraping operation, by the oil scraper ring 25 and the oil blocker ring 24 which are stacked on the mount 23. In the first scraping operation, the scraped lubricating oil remains on the surface of the disk 21 on the side opposite to the crankcase 100, and gradually returns to the crankcase 100. Subsequently, when the piston rod 400 is driven to move from the crankcase 100 to the cylinder 200 or to move from the cylinder 200 to the crankcase 100, the lubricating oil still attached to the piston rod 400 after the first scraping operation is scraped by the oil scraper 1 once more, that is, the second scraping operation. In the second scraping operation, the lubricating oil scraped by the oil scraper 1 enters the sleeve cavity 3a of the oil-blocking sleeve 3 through the oil discharge end of the oil scraper 1, and the lubricating oil accumulated in the sleeve cavity 3a is discharged out of the sleeve cavity 3a through the oil discharge port 31 and flows back to the crankcase 100 through the disc body 21. By adopting the oil return device 500 provided by the embodiment of the utility model, the lubricating oil attached to the piston rod 400 can be scraped in two passes, the lubricating oil attached to the piston rod 400 can be effectively cleaned, and the lubricating oil can be prevented from being brought into the isolation chamber 300a to form lubricating oil leakage.
Note that, by specifically providing the oil catcher 22 to include: the mounting seat 23 is arranged on one side disc surface of the disc body 21 opposite to the crankcase 100; an oil-blocking ring 24; the oil scraper ring 25, the oil scraper ring 25 and the oil resistance ring 24 are superposed on the mounting seat 23, and the oil scraper ring 25 is positioned at the lower side of the oil resistance ring 24, and the piston rod 400 passes through the oil scraper ring 25 and the oil resistance ring 24 in a matched manner, and the oil scraper ring 25 and the oil resistance ring 24 superposed on the mounting seat 23 carry out first scraping. Compared with the first through hole 2a, less lubricating oil remains in the piston rod 400 after the first scraping, and the cleaning efficiency is higher; compared with the two-pass scraping operation formed by the first through hole 2a and the oil wiper 1, the two-pass scraping operation formed by the oil wiper 25, the oil baffle 24 and the oil wiper 1 can clean the lubricating oil attached to the piston rod 400 more cleanly, and can more effectively avoid the lubricating oil from being brought into the isolation chamber 300a to form lubricating oil leakage.
In some embodiments of the utility model, optionally, as shown in fig. 2, the oil scraper ring 25 has at least two, at least two oil scraper rings 25 and oil retarding ring 24 are stacked on the mount 23, and all the oil scraper rings 25 are located on the lower side of the oil retarding ring 24.
In the embodiment of the utility model, by adopting at least two oil scraper rings 25 and arranging all the oil scraper rings 25 at the lower side of the oil scraper ring 24, compared with a single oil scraper ring 25 and not arranging the oil scraper ring 25 at the lower side of the oil scraper ring 24, less lubricating oil still remains in the piston rod 400 after the first scraping, and the cleaning efficiency is higher; the two-pass scraping operation of the at least two oil scraper rings 25, 24 and the oil wiper 1 can clean the lubricating oil attached to the piston rod 400 more cleanly, and can more effectively prevent the lubricating oil from being brought into the isolation chamber 300a to form lubricating oil leakage.
In some embodiments of the present utility model, optionally, referring to fig. 2, the isolation cartridge 300 further has a third opening 303 in communication with the isolation chamber 300 a;
the oil return device 500 further includes:
an oil drain pipe 4 located between the isolation bin 300 and the oil guide disc 2, a first end of the oil drain pipe 4 being communicated with the isolation chamber 300a through a third opening 303, and a second end of the oil drain pipe 4 being provided with an oil filter 41.
In the embodiment of the present utility model, the oil drain pipe 4 is used for draining the lubricating oil still leaking into the isolation chamber 300a after two-pass scraping back into the crankcase 100. The lubricating oil still leaking into the isolation chamber 300a after the two-pass scraping flows into the oil drain pipe 4 through the third opening 303, and flows back into the crankcase 100 via the second end portion of the oil drain pipe 4.
It should be noted that, the lubricating oil still leaked to the isolation chamber 300a after two-pass scraping may be polluted by dust and impurities in the isolation chamber 300a, and is directly discharged back to the crankcase 100 through the oil discharge pipe 4, and the polluted lubricating oil may further pollute the crankcase 100, thereby endangering the safe and stable operation of the vertical reciprocating piston compressor. According to the oil return device 500 of the embodiment of the utility model, the oil filter 41 is arranged at the second end part of the oil drain pipe 4, the oil filter 41 can filter polluted lubricating oil, dust and impurities doped in the lubricating oil are eliminated, the lubricating oil drained back to the crankcase 100 through the oil drain pipe 4 is ensured to have high cleanliness, and the damage to the safe and stable operation of the vertical reciprocating piston compressor is avoided.
In some embodiments of the utility model, optionally, as shown in figure 2,
the oil drain pipe 4 is a "U" -shaped pipe, and the junction between the first end and the third opening 303 is located above the oil filter 41.
In the embodiment of the present utility model, the oil drain pipe 4 is a U-shaped pipe, and the connection between the first end and the third opening 303 is located above the oil filter 41, so that the two ends of the oil drain pipe 4 form a height difference.
In practical use, the first end portion is made into an end portion having an outer tube thread for connecting with an internal thread preset in the third opening 303, and a raw material tape is wound around the outer tube thread at the time of connection to improve sealability. The second end part is provided with a welded ring, the inner diameter of the ring is consistent with the inner diameter of the oil discharge pipe 4, and the outer diameter of the ring is larger than the size of the filter element. The drill bit is used for drilling symmetrical 4 round holes in the peripheral outer wall of the circular ring, after the circular ring is welded, the positioning ring of the filter element is welded on the circular ring, the positioning ring is used for guaranteeing that the filter element does not deviate, then the filter element is placed on the positioning ring, the filter element gland is covered, and finally the filter element is pressed by using the bolt. The filter element is tightly pressed by the bolts, so that the contact surface between the filter element and the positioning ring and the contact surface between the filter element and the filter element gland form a sealing state, and unfiltered lubricating oil is prevented from leaking into the oil tank.
In the embodiment of the utility model, the oil drain pipe 4 is a U-shaped pipe, so that liquid seal can be realized, and the condition of mutual blowby between the isolation chamber 300a and the crankcase 100 is avoided; further, the first end portion forms a siphon effect by the oil return, and suction force is formed to the oil in the isolation chamber 300a, so that the oil return can be efficiently realized.
In some embodiments of the utility model, optionally, an oil filter 41 is removably provided at the second end. The oil filter 41 is detachably provided at the second end portion, and a user can conveniently replace the filter element in the oil filter 41, which is advantageous in ensuring that the oil filter 41 maintains a high-efficiency cleaning ability against dust and foreign matter contamination in the lubricating oil for a long period of time.
In some embodiments of the present utility model, optionally, as shown in fig. 2, the oil drain ports 31 have at least two oil drain ports 31, and at least two oil drain ports 31 are uniformly distributed on a peripheral side wall of an end portion of the oil blocking sleeve 3 opposite to the oil guiding disc 2. In the embodiment of the utility model, at least two oil drain ports 31 are uniformly distributed on the peripheral side wall of the end part of the oil blocking sleeve 3 opposite to the oil guiding disc 2, so that the discharge efficiency of lubricating oil accumulated in the sleeve cavity 3a out of the sleeve cavity 3a through the oil drain ports 31 can be improved, and the oil return efficiency of the oil return device 500 in the embodiment of the utility model is improved.
In some embodiments of the present utility model, optionally, the oil drain ports 31 have 6, and the 6 oil drain ports 31 are uniformly distributed on the circumferential side wall of the end portion of the oil blocking sleeve 3 opposite to the oil guiding disc 2.
In some embodiments of the utility model, the method, optionally,
one end of the oil blocking sleeve 3 is connected with the isolation bin 300 through a fastener, and the other end is welded and fixed with the oil guiding disc 2. The above arrangement is advantageous in reducing the manufacturing cost of the oil return device 500 according to the embodiment of the present utility model, and ensuring a high service time of the oil return device 500.
An embodiment of the present utility model provides a vertical type reciprocating piston compressor, as shown in fig. 1, including: crankcase 100, cylinder 200, isolation bin 300 and piston rod 400; the crankcase 100 is located below the cylinder 200, the isolation bin 300 is located between the crankcase 100 and the cylinder 200, the isolation bin 300 has an isolation chamber 300a, and the isolation bin 300 further has a first opening 301 and a second opening 302 that are in communication with the isolation chamber 300 a; one end portion of the piston rod 400 protrudes into the crankcase 100, the other end portion protrudes into the isolation chamber 300a through the first opening 301 and protrudes into the cylinder 200 through the second opening 302, and the piston rod 400 is capable of reciprocating between the crankcase 100 and the cylinder 200, and further includes: the oil return device 500 in the embodiment of the utility model.
It should be noted that, as a whole, the vertical reciprocating piston compressor is available, and further includes: and a driving motor 600, wherein the driving motor 600 drives a crankshaft (not shown) arranged in the crank case 100 to rotate, and the driving motor 600 drives the piston rod 400 to reciprocate between the crank case 100 and the cylinder 200 through the transmission of the crankshaft (not shown), and the piston rod 400 is in driving connection with the crankshaft (not shown) through a cross head part.
The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.
Claims (10)
1. An oil return device of a vertical reciprocating piston compressor, the vertical reciprocating piston compressor comprising: the device comprises a crankcase, a cylinder, an isolation bin and a piston rod; the crankcase is positioned below the cylinder, the isolation bin is positioned between the crankcase and the cylinder, the isolation bin is provided with an isolation cavity, and the isolation bin is also provided with a first opening and a second opening which are communicated with the isolation cavity; one end portion of the piston rod extends into the crankcase, the other end portion extends into the isolation chamber through the first opening and into the cylinder through the second opening, and the piston rod can reciprocate between the crankcase and the cylinder, and the oil return device comprises:
the oil wiper is arranged at the first opening;
the oil guide disc is positioned below the oil wiper and provided with a first through hole extending along the thickness direction of the oil guide disc;
the oil blocking sleeve is positioned between the oil wiper and the oil guide disc, one end part of the oil blocking sleeve is fixedly connected with the isolation bin, and the other end part of the oil blocking sleeve is fixedly connected with the oil guide disc and is provided with an oil discharge port communicated with a sleeve cavity of the oil blocking sleeve; the piston rod passes through the first through hole in a matched mode and stretches into the sleeve cavity, and the sleeve cavity is communicated with the oil discharging end of the oil wiper.
2. The oil return device according to claim 1, characterized in that:
the oil guiding disc comprises:
the disc body is in a disc shape with an upward concave edge, and the first through hole is positioned in the disc body;
the oil blocking device is arranged on one side disc surface of the disc body opposite to the crankcase.
3. The oil return device according to claim 2, characterized in that:
the oil catcher includes:
the mounting seat is arranged on one side disc surface of the disc body opposite to the crankcase;
oil-blocking ring;
the oil scraper ring and the oil resistance ring are overlapped on the mounting seat, the oil scraper ring is positioned at the lower side of the oil resistance ring, and the piston rod passes through the oil scraper ring and the oil resistance ring in a matched mode.
4. An oil return apparatus according to claim 3, wherein:
the oil scraping rings are at least two, the oil scraping rings and the oil resistance rings are overlapped on the mounting seat, and all the oil scraping rings are located on the lower side of the oil resistance rings.
5. The oil return device according to claim 1, characterized in that:
the isolation bin also has a third opening in communication with the isolation chamber;
the oil return device further includes:
the oil discharge pipe is positioned between the isolation bin and the oil guide disc, the first end part of the oil discharge pipe is communicated with the isolation cavity through the third opening, and the second end part of the oil discharge pipe is provided with an oil filter.
6. The oil return apparatus according to claim 5, wherein:
the oil drain pipe is a U-shaped pipe, and the connection part between the first end part and the third opening is positioned above the oil filter.
7. The oil return apparatus according to claim 5, wherein:
the oil filter is detachably provided at the second end portion.
8. The oil return device according to claim 1, characterized in that:
the oil drain holes are uniformly distributed on the peripheral side wall of the end part of one side, opposite to the oil guide disc, of the oil blocking sleeve.
9. The oil return device according to claim 1, characterized in that:
one side end part of the oil blocking sleeve is connected with the isolation bin through a fastener, and the other end part of the oil blocking sleeve is welded and fixed with the oil guiding disc.
10. A vertical reciprocating piston compressor comprising: the device comprises a crankcase, a cylinder, an isolation bin and a piston rod; the crankcase is positioned below the cylinder, the isolation bin is positioned between the crankcase and the cylinder, the isolation bin is provided with an isolation cavity, and the isolation bin is also provided with a first opening and a second opening which are communicated with the isolation cavity; one end portion of the piston rod extends into the crankcase, the other end portion extends into the isolation chamber through the first opening and into the cylinder through the second opening, and the piston rod can reciprocate between the crankcase and the cylinder, and the piston rod is characterized by further comprising: the oil return device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322252008.4U CN220227123U (en) | 2023-08-21 | 2023-08-21 | Oil return device of vertical reciprocating piston compressor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322252008.4U CN220227123U (en) | 2023-08-21 | 2023-08-21 | Oil return device of vertical reciprocating piston compressor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220227123U true CN220227123U (en) | 2023-12-22 |
Family
ID=89194816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322252008.4U Active CN220227123U (en) | 2023-08-21 | 2023-08-21 | Oil return device of vertical reciprocating piston compressor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220227123U (en) |
-
2023
- 2023-08-21 CN CN202322252008.4U patent/CN220227123U/en active Active
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