A refrigerating unit oil separator visual oil mirror dismounting device and system

By designing a sight glass disassembly device that includes a base and claws, the problem of difficult disassembly and installation of the sight glass is solved, achieving safe and convenient disassembly and installation and improving work efficiency.

CN224295786UActive Publication Date: 2026-05-29BINGSHAN TECH SERVICE (DALIAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BINGSHAN TECH SERVICE (DALIAN) CO LTD
Filing Date
2025-07-23
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The sight glass of the oil separator is difficult to disassemble and install, easily damaged, and inconvenient to operate.

Method used

A sight glass disassembly device for a refrigeration unit oil separator is designed, comprising a base and a wrench. The wrench engages with the notch of the clamping nut, and the base is rotated by a lever, thereby enabling easy disassembly and installation of the sight glass.

Benefits of technology

It enables safe and convenient disassembly and installation of the oil sight glass, improving work efficiency and reducing the risk of damage to the oil sight glass.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to refrigerating unit oil separator visual oil glass maintenance technical field provides a kind of refrigerating unit oil separator visual oil glass dismounting device and system, disclose a kind of refrigerating unit oil separator visual oil glass dismounting device, including pedestal, still include several wrench jaws, the number of wrench jaw is consistent with the number of gap on compression nut, wrench jaw is fixedly installed on pedestal, all wrench jaws can be simultaneously and one-to-one correspondingly clamped in all gaps on compression nut;Still disclose a kind of refrigerating unit oil separator visual oil glass dismounting system, including oil separator cylinder body, visual oil glass and compression nut, still include the above-mentioned disclosure a kind of refrigerating unit oil separator visual oil glass dismounting device.The utility model solves the problem that oil separator visual oil glass dismounting and installing are difficult, make the dismounting and installation work of oil separator visual oil glass more safe and convenient.
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Description

Technical Field

[0001] This utility model relates to the field of oil sight glass repair technology for refrigeration unit oil separators, and in particular to a disassembly device and system for oil sight glass of refrigeration unit oil separators. Background Technology

[0002] An oil separator is an essential component of a screw compressor unit. The oil separator performs multi-stage separation of the mixture of refrigerant and refrigeration oil discharged during the operation of the refrigeration compressor, minimizing the possibility of refrigerant carrying refrigeration oil into the refrigeration system, thereby minimizing the impact of such situations on refrigeration efficiency. At the same time, the separated refrigeration oil accumulates at the bottom of the oil separator and returns to the refrigeration compressor after passing through an oil filter and an oil cooler, allowing the refrigeration oil to be recycled.

[0003] To observe the amount of refrigerant oil in the oil separator, several sight glasses are typically installed on the separator cylinder. These sight glasses allow observation of the refrigerant oil level inside the separator, enabling determination of whether the oil level meets the operating requirements of the refrigeration unit. After prolonged operation, the sight glasses often become contaminated due to the accumulation of oil, rust, and other contaminants within the refrigeration system, making it difficult to clearly observe the refrigerant oil level. Therefore, the sight glasses need to be periodically disassembled and cleaned to restore their normal observation function.

[0004] The sight glass has a simple structure and is usually secured in the mounting hole on the oil separator cylinder by a clamping nut. To remove the sight glass, the clamping nut must be unscrewed first, then the sight glass should be removed, cleaned, and reinstalled. Several notches are provided on one end of the clamping nut along its circumference to facilitate the use of disassembly tools.

[0005] During the maintenance of the oil separator sight glass, disassembly and installation are difficult due to the large radius and small notch of the clamping nut. Improper operation can easily damage the sight glass. This utility model aims to design an oil separator sight glass disassembly device for refrigeration units to solve the problem of difficult disassembly and installation of the oil separator sight glass, making the disassembly and installation of the oil separator sight glass safer and more convenient. Utility Model Content

[0006] In response to the aforementioned technical problems, a device and system for disassembling the sight glass of a refrigeration unit oil separator are provided.

[0007] The technical means adopted in this utility model are as follows:

[0008] In a first aspect, a sight glass removal device for an oil separator of a refrigeration unit includes a base and a plurality of claws; the number of claws is consistent with the number of notches on the clamping nut, the claws are fixedly installed on the base, and all the claws can be simultaneously and one-to-one engaged in all the notches on the clamping nut.

[0009] Furthermore, the base is a cylindrical structure with one end open and the other end closed. Several mounting slots are provided on the open end of the base along its circumferential direction. The number of mounting slots is the same as the number of wrenches. All the wrenches are corresponding one-to-one and fixedly installed in all the mounting slots.

[0010] Furthermore, the base has a first insertion hole and a second insertion hole respectively on both sides in the radial direction; it also includes a force-adding rod, which can be installed through the first insertion hole and the second insertion hole simultaneously.

[0011] Secondly, a system for disassembling an oil separator sight glass in a refrigeration unit includes an oil separator cylinder, an oil separator sight glass, and a clamping nut. The oil separator cylinder has a mounting hole, which includes a first section and a second section. Both the first and second sections are cylindrical, with the radius of the first section being larger than that of the second section. A clamping thread is provided on the side of the first section. One end of the first section is located on the outer surface of the oil separator cylinder, and the other end of the first section is coaxially connected to one end of the second section. The other end of the section is located on the inner side of the oil separator cylinder; the radius of the sight glass is larger than the radius of the second hole section, the clamping nut and the clamping thread cooperate with each other, the sight glass is pressed into the first hole section by the clamping nut, and a number of notches are opened along its circumferential direction on the end of the clamping nut away from the sight glass; it also includes the oil separator sight glass disassembly device of the refrigeration unit as described in any one of the first aspects; all the claws in the oil separator sight glass disassembly device of the refrigeration unit are simultaneously and one-to-one engaged in all the notches on the clamping nut.

[0012] This utility model has the following advantages:

[0013] 1. In this utility model, all the claws are first simultaneously and one-to-one engaged with all the notches on the clamping nut. Then, the base is rotated to unscrew the clamping nut from the first hole section. Finally, the sight glass is removed, allowing for maintenance. After maintenance, the sight glass is placed back into the first hole section, and the clamping nut is screwed into the first hole section using the refrigeration unit oil separator sight glass disassembly device provided in this utility model. This clamping nut then presses the sight glass firmly, completing the installation of the sight glass. This utility model solves the problem of difficult disassembly and installation of the oil separator sight glass, making the disassembly and installation of the oil separator sight glass safer and more convenient.

[0014] 2. In this utility model, the base is rotated by the force-adding rod, and the force-adding rod can be adjusted in the first and second insertion holes, which has a torque adjustment function. It can easily disassemble the sight glass, which is convenient, safe and reliable and can significantly improve work efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view of a sight glass disassembly device for a refrigeration unit oil separator according to Embodiment 1 of this utility model;

[0017] Figure 2 for Figure 1 Sectional view along axis AA;

[0018] Figure 3 This is an overall structural diagram of a refrigeration unit oil separator sight glass disassembly system according to Embodiment 2 of this utility model;

[0019] Reference numerals in the attached drawings: 1-claw; 2-base; 3-force bar; 4-oil separator cylinder; 5-sight glass; 6-compression nut; 7-mounting hole; 701-second hole section; 702-first hole section. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example 1:

[0022] like Figures 1 to 2 As shown, a sight glass removal device for an oil separator of a refrigeration unit includes a base 2 and a plurality of claws 1; the number of claws 1 is consistent with the number of notches on the clamping nut 6, the claws 1 are fixedly installed on the base 2, and all the claws 1 can be simultaneously and one-to-one engaged in all the notches on the clamping nut 6.

[0023] Specifically, the claw 1 is provided with four claws.

[0024] In this embodiment, the base 2 is a cylindrical structure with one end open and the other end closed. Several mounting slots are provided on the open end of the base 2 along its circumferential direction. The number of mounting slots is the same as the number of claws 1. All the claws 1 are corresponding one-to-one and fixedly installed in all the mounting slots.

[0025] Specifically, four mounting slots are evenly distributed along the circumferential direction on the open end of the base 2, and the length direction of the mounting slots is consistent with the radial direction of the base 2.

[0026] In this embodiment, a first insertion hole and a second insertion hole are respectively provided on both sides of the base 2 in the radial direction; it also includes a force-adding rod 3, which can be installed through the first insertion hole and the second insertion hole simultaneously.

[0027] Example 2:

[0028] like Figures 1 to 3 As shown, a system for disassembling the sight glass of a refrigeration unit oil separator includes an oil separator body 4, a sight glass 5, and a clamping nut 6. The oil separator body 4 has a mounting hole 7, which includes a first section 702 and a second section 701. Both the first section 702 and the second section 701 are cylindrical. The radius of the first section 702 is larger than the radius of the second section 701. A clamping thread is provided on the side of the first section 702. One end of the first section 702 is located on the outer surface of the oil separator body 4, and the other end of the first section 702 is coaxial with one end of the second section 701. The connection is made such that the other end of the second hole section 701 is located on the inner side of the oil separator cylinder 4; the radius of the sight glass 5 is larger than the radius of the second hole section 701, the clamping nut 6 and the clamping thread cooperate with each other, the sight glass 5 is pressed into the first hole section 702 by the clamping nut 6, and a number of notches are opened along its circumferential direction on the end of the clamping nut 6 away from the sight glass 5; it also includes the oil separator sight glass disassembly device of any one of the embodiments 1; all the claws 1 in the oil separator sight glass disassembly device of the refrigeration unit are simultaneously and one-to-one engaged in all the notches on the clamping nut 6.

[0029] Specifically, the clamping nut 6 has four notches evenly distributed along its circumferential direction on the end away from the sight glass 5.

[0030] The working principle of this embodiment:

[0031] When the sight glass 5 needs maintenance, first, simultaneously and one by one, engage all the claws 1 into all the notches on the clamping nut 6. Then, use the lever 3 to rotate the base 2 to unscrew the clamping nut 6 from the first hole section 702. At this time, the torque can be adjusted by adjusting the exposed length of the lever 3 to easily disassemble the sight glass 5. After unscrewing the clamping nut 6 from the first hole section 702, remove the sight glass 5 from the first hole section 702. At this time, the sight glass 5 can be maintained.

[0032] When it is necessary to fix the sight glass 5 on the oil separator cylinder 4, first put the sight glass 5 into the first hole section 702, and then use the oil separator sight glass disassembly device of the refrigeration unit provided in this embodiment to screw the clamping nut 6 into the first hole section 702, so that the clamping nut 6 clamps the sight glass 5, and the installation of the sight glass 5 is completed.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for disassembling the sight glass of a refrigeration unit oil separator, characterized in that, It includes a base (2) and several claws (1); The number of the claws (1) is the same as the number of notches on the clamping nut (6). The claws (1) are fixedly installed on the base (2). All the claws (1) can be simultaneously and one-to-one engaged in all the notches on the clamping nut (6).

2. The oil sight glass disassembly device for a refrigeration unit oil separator according to claim 1, characterized in that, The base (2) is a cylindrical structure with one end open and the other end closed. Several mounting slots are provided on the open end of the base (2) along its circumferential direction. The number of mounting slots is the same as the number of claws (1). All the claws (1) are installed one-to-one and fixedly installed in all the mounting slots.

3. The oil sight glass removal device for a refrigeration unit oil separator according to claim 2, characterized in that, The base (2) has a first insertion hole and a second insertion hole respectively on both sides in the radial direction; It also includes a force-adding rod (3), which can be installed through both the first and second sockets.

4. A system for removing the sight glass of an oil separator in a refrigeration unit, comprising an oil separator body (4), a sight glass (5), and a clamping nut (6); The oil separator cylinder (4) is provided with an installation hole (7), which includes a first hole section (702) and a second hole section (701). The first hole section (702) and the second hole section (701) are both cylindrical structures. The radius of the first hole section (702) is larger than the radius of the second hole section (701). The side of the first hole section (702) is provided with a clamping thread. One end of the first hole section (702) is located on the outer side of the oil separator cylinder (4). The other end of the first hole section (702) is coaxially connected to one end of the second hole section (701). The other end of the second hole section (701) is located on the inner side of the oil separator cylinder (4). The radius of the sight glass (5) is greater than the radius of the second hole section (701). The clamping nut (6) and the clamping thread cooperate with each other. The sight glass (5) is clamped in the first hole section (702) by the clamping nut (6). Several notches are opened along its circumferential direction on the end of the clamping nut (6) away from the sight glass (5). Its features are, It also includes the oil sight glass removal device for the refrigeration unit oil separator as described in any one of claims 1 to 3; All the claws (1) in the oil separator sight glass removal device of the refrigeration unit are simultaneously and correspondingly engaged in all the notches on the clamping nut (6).