Oil scraper ring device of reciprocating compressor

Abstract

The utility model relates to the technical field of reciprocating compressors, and discloses an oil scraping ring device of a reciprocating compressor, which comprises an oil scraping tank, a nitrogen leakage sealing ring component is arranged at one end of the oil scraping tank, a gland is arranged at one end of the nitrogen leakage sealing ring component, and an oil seal seat is arranged at the other end of the oil scraping tank. A framework oil seal is arranged at one end of the oil seal seat, and an oil seal cover is arranged at one end of the framework oil seal; an oil scraping ring assembly is arranged in the oil seal seat and the oil scraping box; the axial distance between the oil seal seat and the oil scraping box is enlarged by 40-60 filaments; by increasing the axial distance between the oil seal seat and the oil scraping box and enlarging the axial clearance among the oil scraping ring, the packing seal assembly and the oil scraping box, the oil scraping ring can fully scrape lubricating oil on the piston rod, the phenomenon of incomplete oil scraping is reduced, and the problems that oil scraping is insufficient and the oil scraping effect is gradually reduced along with the increase of service time are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of reciprocating compressors, in particular to an oil scraper ring device for a reciprocating compressor. Background Art

[0002] With the continuous development of China's industry, reciprocating compressors are commonly used compression equipment in chemical production. The oil scraper ring device is used to scrape oil in reciprocating compressors. However, oil leakage occurs during the scraping process, and the lubricating oil on the piston rod cannot be scraped off, resulting in high oil discharge of the unit, increased lubricating oil usage, and increased lubricating oil usage costs. Secondly, it will also cause oil to enter the hydrogen seal packing without oil, resulting in poor sealing effect, and hydrogen leakage to the crankcase causing oil deterioration.

[0003] At present, most of the existing oil scrapers in China for reciprocating compressor oil scraper ring assemblies use two sets of oil scraping devices and two sets of sealing devices, with a partition between the oil scraping device and the sealing device. The traditional oil scrapers have poor oil scraping effect, and the compressor consumes a lot of oil. In addition, there are problems such as incomplete oil scraping and the oil scraping effect gradually decreases with the increase of use time. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides a reciprocating compressor oil scraper ring device, which has the advantages of increasing the oil scraping effect and extending the service life of the effect, and solves the problem that most of the existing domestic oil scrapers of the reciprocating compressor oil scraper ring assembly use two sets of oil scrapers and two sets of sealing devices, and there is a partition between the oil scraper device and the sealing device. The traditional oil scraper has poor oil scraping effect, and the compressor consumes a lot of oil. There are also problems such as incomplete oil scraping and the oil scraping effect gradually decreasing with the increase of service time.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reciprocating compressor oil scraper ring device, comprising an oil scraper box, one end of the oil scraper box is provided with a nitrogen leakage sealing ring assembly, one end of the nitrogen leakage sealing ring assembly is provided with a gland, the other end of the oil scraper box is provided with an oil seal seat, one end of the oil seal seat is provided with a skeleton oil seal, and one end of the skeleton oil seal is provided with an oil seal cover;

[0008] An oil scraper ring assembly is provided inside the oil seal seat and the oil scraper box;

[0009] The axial distance between the oil seal seat and the oil scraper box is enlarged by 40-60 mm.

[0010] Preferably, the skeleton oil seal and the oil seal cover are connected via a stud and a nut.

[0011] Preferably, a pad is provided on the outer side wall of the oil scraper box, and the pad and the oil scraper box are connected via a stud bolt and the second stud.

[0012] Preferably, the gland and the oil scraper box are connected via stud three and nut two.

[0013] Preferably, there are five oil scraper ring assemblies in total.

[0014] Preferably, the axial distance between the oil seal seat and the oil scraper box is enlarged by 50 wires.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a reciprocating compressor oil scraper ring device, which has the following beneficial effects:

[0017] 1. The oil scraper ring device of the reciprocating compressor increases the axial distance between the oil seal seat and the oil scraper box, expands the axial clearance between the oil scraper ring, the packing seal assembly and the oil scraper box, allows the oil scraper ring to fully scrape the lubricating oil on the piston rod, reduces the phenomenon of incomplete oil scraping, and solves the problem of insufficient oil scraping and the gradual reduction of oil scraping effect with the increase of use time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the utility model.

[0020] In the figure:

[0021] 1. Pressure cap; 2. Nitrogen leakage sealing ring assembly; 3. Oil scraper ring assembly; 4. Oil seal seat; 5. Skeleton oil seal; 6. Oil seal cover; 7. Stud one; 8. Nut; 9. Oil scraper box; 10. Gasket; 11. Stud bolt; 12. Stud two; 13. Stud three; 14. Nut two. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0024] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] In the related technology, the existing domestic oil scrapers for reciprocating compressor oil scraper ring assemblies mostly use two sets of oil scraping devices and two sets of sealing devices, with a partition between the oil scraping device and the sealing device. The traditional oil scrapers have poor oil scraping effect, and the compressor consumes a lot of oil. In addition, the oil scraping is incomplete, and the oil scraping effect gradually decreases with the increase of use time.

[0027] In order to solve the problems in the related technology to a certain extent, the embodiment of the present application provides a reciprocating compressor oil scraper ring device, which increases the axial distance between the oil seal seat and the oil scraper box, expands the axial clearance between the oil scraper ring, the packing seal assembly and the oil scraper box, allows the oil scraper ring to fully scrape the lubricating oil on the piston rod, reduces the phenomenon of incomplete oil scraping, and solves the problem of insufficient oil scraping and the gradual decrease in oil scraping effect with increasing usage time.

[0028] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0029] Combination Figure 1-Figure 2 The embodiment of the present application provides a reciprocating compressor oil scraper ring device, including an oil scraper box 9, one end of the oil scraper box 9 is provided with a nitrogen leakage sealing ring assembly 2, one end of the nitrogen leakage sealing ring assembly 2 is provided with a gland 1, the other end of the oil scraper box 9 is provided with an oil seal seat 4, one end of the oil seal seat 4 is provided with a skeleton oil seal 5, and one end of the skeleton oil seal 5 is provided with an oil seal cover 6;

[0030] An oil scraper ring assembly 3 is provided inside the oil seal seat 4 and the oil scraper box 9;

[0031] The axial distance between the oil seal seat 4 and the oil scraper box 9 is enlarged by 40-60 wires.

[0032] In some embodiments, the skeleton oil seal 5 and the oil seal cover 6 are connected via a stud 7 and a nut 8.

[0033] In some embodiments, a gasket 10 is provided on the outer side wall of the oil scraper box 9 , and the gasket 10 and the oil scraper box 9 are connected via stud bolts 11 and studs 12 .

[0034] In some embodiments, the gland 1 and the oil scraper box 9 are connected via stud three 13 and nut two 14 .

[0035] In some embodiments, five oil scraper ring assemblies 3 are provided.

[0036] In some embodiments, the axial distance between the oil seal seat 4 and the oil scraper box 9 is enlarged by 50 wires.

[0037] In this embodiment, based on the original oil seal seat 4 and oil scraper box 9, the position where the oil scraper ring 3 and the nitrogen leakage sealing ring assembly 2 are installed inside is machined 40-60 threads to expand the axial spacing and ensure that the oil scraper ring 3 and the nitrogen leakage sealing ring assembly 2 can move easily axially in the oil scraper box after reinstallation.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0039] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reciprocating compressor oil scraper ring device, characterized in that: It comprises an oil scraper box (9), one end of the oil scraper box (9) is provided with a nitrogen leakage sealing ring assembly (2), one end of the nitrogen leakage sealing ring assembly (2) is provided with a gland (1), the other end of the oil scraper box (9) is provided with an oil seal seat (4), one end of the oil seal seat (4) is provided with a skeleton oil seal (5), and one end of the skeleton oil seal (5) is provided with an oil seal cover (6); An oil scraper ring assembly (3) is provided inside the oil seal seat (4) and the oil scraper box (9); The axial distance between the oil seal seat (4) and the oil scraper box (9) is enlarged by 40-60 mm.

2. The oil scraper ring device for a reciprocating compressor according to claim 1, characterized in that: The skeleton oil seal (5) and the oil seal cover (6) are connected via a stud (7) and a nut (8).

3. The oil scraper ring device for a reciprocating compressor according to claim 1, characterized in that: The outer side wall of the oil scraper box (9) is provided with a pad (10), and the pad (10) and the oil scraper box (9) are connected via a stud bolt (11) and a second stud (12).

4. The oil scraper ring device for a reciprocating compressor according to claim 1, characterized in that: The gland (1) and the oil scraper box (9) are connected via stud three (13) and nut two (14).

5. The oil scraper ring device for a reciprocating compressor according to claim 1, characterized in that: The oil scraper ring assemblies (3) are provided with five in total.

6. The oil scraper ring device for a reciprocating compressor according to claim 1, characterized in that: The axial distance between the oil seal seat (4) and the oil scraper box (9) is enlarged by 50 threads.

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