Sealing ring for oil-free oxygen supercharger

Abstract

The utility model provides a sealing ring for a full oil-free oxygen supercharger, which relates to the technical field of full oil-free oxygen superchargers, and comprises a sealing ring body, the sealing ring body is formed by splicing a plurality of same sealing splicing blocks end to end, and a sealing partition plate is arranged at the circular section of each sealing splicing block. Mounting plates are arranged at the positions, away from the sealing partition plates, in the sealing splicing blocks, springs are connected to the sides, away from the sealing partition plates, of the mounting plates, and the other ends of the springs are connected to the sealing partition plates at the tails of the adjacent sealing splicing blocks. When the wear-resistant block needs to be replaced, the sealing ring body is taken out, the sealing splicing blocks are separated, only the tail sections of the sealing splicing blocks are provided with the sealing partition plates, the front end sections of the sealing splicing blocks are sealed through the sealing partition plates at the tails of the adjacent sealing splicing blocks, and therefore the separated front end sections are provided with the notches, and the wear-resistant block can be replaced. Therefore, the wear-resistant block can be pushed out through fingers, and the effect of rapidly replacing the wear-resistant block is achieved.

Description

Technical Field

[0001] This utility model relates to the field of oil-free oxygen booster technology, and in particular to a sealing ring for an oil-free oxygen booster. Background Technology

[0002] Oil-free oxygen booster compressor sealing rings refer to the sealing rings used in oil-free oxygen booster compressors. Oil-free oxygen booster compressors are typically used in gas boosting systems to pressurize oxygen to the required pressure level. The sealing rings in these compressors play a sealing role, ensuring efficient operation and preventing gas leakage.

[0003] In the prior art, since oil-free oxygen boosters are typically used to provide high-purity oxygen, the sealing rings must avoid releasing any contaminants or oil lubricants. Furthermore, since such oxygen boosters are used in the human respiratory system, lubrication with oil is not possible to ensure that the oxygen provided is pure and uncontaminated. This renders traditional sealing rings unusable. Therefore, a wear-resistant sealing ring that is lubricant-free and easy to replace is needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. Traditional sealing rings cannot adapt to the high pressure and wear resistance of turbochargers in environments without lubrication, thus failing to guarantee reliable operation over long periods.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a sealing ring for an oil-free oxygen booster, comprising a sealing ring body, wherein the sealing ring body is composed of several identical sealing splicing blocks joined end to end, a sealing partition is provided at the annular cross-section of the sealing splicing block, an mounting plate is provided inside the sealing splicing block away from the sealing partition, a spring is connected to the side of the mounting plate away from the sealing partition, the other end of the spring is connected to the sealing partition at the tail of the adjacent sealing splicing block, a slot is provided on the inner side of the sealing splicing block, and a wear-resistant block is installed inside the slot.

[0006] Optionally, the left and right sides of the sealing ring body are the top surface and the bottom surface of the sealing ring, respectively.

[0007] Optionally, the inner and outer sides of the sealing ring body are respectively the outer surface of the sealing ring and the inner surface of the sealing ring.

[0008] Optionally, several slots and wear-resistant blocks are provided and arranged in a ring at equal intervals on one side of the inner surface of the sealing ring body.

[0009] Optionally, the sealing splice block has an arc-shaped groove corresponding to the outer surface of the sealing ring and the side of the spring.

[0010] Optionally, the wear-resistant block is made of polytetrafluoroethylene, polyetheretherketone, or hydroxyapatite.

[0011] Optionally, the wear-resistant block is fan-shaped, with one end of the smaller annular surface of the wear-resistant block inserted into the slot.

[0012] Optionally, sealing sleeves are installed on both sides of the sealing ring body near the top and bottom surfaces of the sealing ring.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this invention, the sealing ring body is composed of several sealing splicing blocks joined end to end and connected by springs. When the sealing ring body is working, it is pressed by the springs to tighten the sealing ring body onto the sealing component. When the wear-resistant block needs to be replaced, the sealing ring body is removed and the several sealing splicing blocks are separated. Only the tail section of the sealing splicing block is equipped with a sealing partition, and the front section is sealed by the sealing partition at the tail of the adjacent sealing splicing block. Therefore, the front section after separation has a notch, so the wear-resistant block can be pushed out by finger, achieving the function of quickly replacing the wear-resistant block. Attached Figure Description

[0015] Figure 1 A perspective view of the sealing ring for an oil-free oxygen booster provided by this utility model;

[0016] Figure 2 A cross-sectional structural schematic diagram of the sealing ring for the oil-free oxygen booster provided by this utility model;

[0017] Figure 3 The sealing ring for the oil-free oxygen booster provided by this utility model Figure 2 Cross-sectional schematic diagram of the central sealing splice block structure;

[0018] Figure 4 The sealing ring for the oil-free oxygen booster provided by this utility model Figure 2 A cross-sectional structural diagram of the replacement wear-resistant block.

[0019] Legend:

[0020] 1. Sealing ring body; 11. Sealing ring top surface; 12. Sealing ring bottom surface; 13. Sealing ring outer surface; 14. Sealing ring inner surface; 15. Sealing splice block; 151. Arc groove; 152. Spring; 153. Sealing partition; 154. Wear-resistant block; 155. Slot; 156. Mounting plate; 21. Sealing sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a technical solution: a sealing ring for an oil-free oxygen booster, including a sealing ring body 1. The sealing ring body 1 is formed by splicing several identical sealing splicing blocks 15 end to end. A sealing partition 153 is provided at the annular cross-section of the sealing splicing block 15. An installation plate 156 is provided inside the sealing splicing block 15 away from the sealing partition 153. A spring 152 is connected to the side of the installation plate 156 away from the sealing partition 153. The other end of the spring 152 is connected to the sealing partition 153 at the tail of the adjacent sealing splicing block 15. A slot 155 is opened on the inner side of the sealing splicing block 15. A wear-resistant block 154 is installed inside the slot 155.

[0024] In this embodiment, the sealing ring body 1 is mounted on the sealing component, and a wear-resistant block 154 is provided on the inner surface 14 of the sealing ring that contacts the sealing component, increasing the wear resistance of the sealing ring body 1. The sealing component and the wear-resistant block 154 rotate and rub against each other, and the wear-resistant block 154 is specially designed to withstand long-term frictional contact. Therefore, it can work for a long time in an environment without lubricating oil. In addition, the sealing ring body 1 is composed of several sealing splicing blocks 15 spliced ​​end to end and connected by springs 152. When the sealing ring body 1 is working, it is subjected to the pressure of the springs 152, thereby sealing the ring. The main body 1 is stretched on the sealing component. When the wear-resistant block 154 needs to be replaced, the sealing ring main body 1 is removed and several sealing splice blocks 15 are separated. The sealing splice block 15 only has a sealing partition 153 installed on its tail section. The front section is sealed by the sealing partition 153 at the tail of the adjacent sealing splice block 15. Therefore, there is a notch on the front section after separation, so that the wear-resistant block 154 can be pushed out by finger, achieving the function of quickly replacing the wear-resistant block 154. The flat design of the mounting plate 156 prevents the formation of a sealed space inside the sealing splice block 15.

[0025] The left and right sides of the sealing ring body 1 are the top surface 11 and the bottom surface 12 of the sealing ring, respectively. The inner and outer sides of the sealing ring body 1 are the outer surface 13 and the inner surface 14 of the sealing ring, respectively. Several slots 155 and wear-resistant blocks 154 are provided and are arranged in a ring at equal intervals on one side of the inner surface 14 of the sealing ring body 1. The sealing splicing block 15 is provided with an arc-shaped groove 151 on the side close to the outer surface 13 of the sealing ring and the spring 152.

[0026] In this embodiment, the arc-shaped groove 151 provides working space for the spring 152.

[0027] The wear-resistant block 154 is made of polytetrafluoroethylene, polyetheretherketone and hydroxyapatite. The wear-resistant block 154 is fan-shaped. One end of the smaller annular surface of the wear-resistant block 154 is inserted into the slot 155. Both sides of the sealing ring body 1 are equipped with sealing sleeves 21 near the top surface 11 and the bottom surface 12 of the sealing ring.

[0028] In this embodiment, the polytetrafluoroethylene, polyetheretherketone, and hydroxyapatite materials not only have good wear resistance but are also harmless to the human body, making them suitable for the working environment of oxygen booster. In addition, the fan-shaped design of the wear-resistant block 154, along with the matching slot 155, ensures that the wear-resistant block 154 is always pressed against the sealing component on one side of the inner surface 14 of the sealing ring. At the same time, it also facilitates pushing out from the inside and replacing the wear-resistant block 154.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A sealing ring for an oil-free oxygen booster, comprising a sealing ring body (1), Features: The sealing ring body (1) is formed by splicing a plurality of identical sealing splicing blocks (15) end to end. A sealing baffle (153) is provided at the circular section of the sealing splicing block (15). A mounting plate (156) is provided inside the sealing splicing block (15) away from the sealing baffle (153). A spring (152) is connected to the side of the mounting plate (156) away from the sealing baffle (153). The other end of the spring (152) is connected to the sealing baffle (153) at the tail of an adjacent sealing splicing block (15). A slot (155) is provided inside the sealing splicing block (155), and a wear-resistant block (154) is installed inside the slot (155).

2. The sealing ring for the fully oil-free oxygen booster according to claim 1, Features: The left and right sides of the sealing ring body (1) are respectively a sealing ring top surface (11) and a sealing ring bottom surface (12).

3. The sealing ring for the fully oil-free oxygen booster according to claim 1, Features: The inner and outer sides of the sealing ring body (1) are respectively a sealing ring outer surface (13) and a sealing ring inner surface (14).

4. The sealing ring for an oil-free oxygen booster according to claim 1, Features: A plurality of the clamping grooves (155) and the wear-resistant blocks (154) are provided and are arranged in an annular manner at equal intervals on one side of the sealing ring inner surface (14) of the sealing ring body (1).

5. The sealing ring for the fully oil-free oxygen booster according to claim 1, Features: The sealing splicing block (15) is provided with an arc groove (151) corresponding to one side close to the outer surface (13) of the sealing ring and the spring (152).

6. The sealing ring for the fully oil-free oxygen booster according to claim 1, Features: The wear-resistant block (154) is made of polytetrafluoroethylene, polyetheretherketone or hydroxyapatite.

7. The sealing ring for an oil-free oxygen booster according to claim 1, Features: The wear-resistant block (154) is fan-shaped, and one end of the smaller annular surface of the wear-resistant block (154) is inserted into the slot (155).

8. The sealing ring for an oil-free oxygen booster according to claim 1, Features: Sealing sleeves (21) are installed on both sides of the sealing ring body (1) near the sealing ring top surface (11) and the sealing ring bottom surface (12).

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