Compressor high-pressure packing

Abstract

The utility model relates to the technical field of compressor packing, and discloses compressor high-pressure packing which comprises a packing flange, the right end of the packing flange is fixedly connected with a rod shell, the inner wall of the rod shell is connected with a piston rod in a sliding mode, and the inner wall of the rod shell is fixedly connected with a plurality of radial notch rings. A radial notch ring is fixedly connected to the left end of the rod shell, a tangential notch ring is fixedly connected to the right end of the radial notch ring, a first supporting ring is fixedly connected to the right end of the tangential notch ring, a second supporting ring is fixedly connected to the right end of the first supporting ring, a sealing assembly used for preventing air leakage is fixedly connected to the left end of the rod shell, and two pressure reduction rings are fixedly connected to the inner wall of the right end of the rod shell. According to the utility model, the main problems of unsatisfactory service life and low working efficiency of the stuffing box component under the high-pressure working condition of the compressor are solved, so that the service life is prolonged, the reliability is increased, the manufacturing and the installation are convenient, and the cooling water channel is moved to the stuffing box body, so that the structure of the cylinder is simplified and the cooling effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor packings, in particular to a high-pressure compressor packing. Background Art

[0002] A compressor is a mechanical device mainly used to increase the pressure of gas and transport gas. In industry and daily life, compressors have a wide range of applications, from air conditioners and refrigerators to large industrial equipment. Among them, the high-pressure compressor packing is a sealing element used in compressors under high-pressure environments. Its main function is to prevent gas leakage and maintain the effective operation of the compressor under high-pressure environments.

[0003] In the prior art, during the exhaust process of some compressors, gas will leak through the gap between the cylinder block and the piston rod. In order to prevent the piston rod from leaking, a sealing ring component must be provided. However, due to long-term contact with gas, the service life of the sealing ring component will be reduced, resulting in reduced reliability and affecting the normal use of the piston rod. For this reason, a high-pressure compressor packing is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a high-pressure compressor packing, aiming to improve the problem that the service life of the sealing ring in the prior art is reduced and affects the normal use.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A high-pressure compressor packing includes a packing flange. The right end of the packing flange is fixedly connected to a rod housing. The inner wall of the rod housing is slidably connected to a piston rod. The inner wall of the rod housing is fixedly connected with a plurality of radially cut rings. The right end of the radially cut ring is fixedly connected to a tangentially cut ring. The right end of the tangentially cut ring is fixedly connected to a support ring one. The right end of the support ring one is fixedly connected to a support ring two. The left end of the rod housing is fixedly connected with a sealing component for preventing air leakage. The inner wall of the right end of the rod housing is fixedly connected with two pressure-reducing rings. The inner wall of the rod housing is provided with a plurality of cooling water channels;

[0007] As a further description of the above technical solution:

[0008] The sealing component includes two three-lobe cut rings one. The outer parts of the two three-lobe cut rings one are fixedly connected to the inner wall of the left end of the rod housing. The right end of the three-lobe cut ring one is fixedly connected to a three-lobe cut ring two. The right end of the three-lobe cut ring two is fixedly connected to a spring ring;

[0009] As a further description of the above technical solution:

[0010] An air leakage recovery port is provided outside the packing flange and recovered through a dedicated pipeline connection;

[0011] As a further description of the above technical solution:

[0012] The second support ring is a metal block.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, the main problems of the packing box component with unsatisfactory life and working efficiency under the high-pressure condition of the compressor are solved, thereby improving the service life, increasing the reliability, and being convenient for manufacturing and installation. The cooling water channel is moved to the packing box body, simplifying the cylinder structure and having a better cooling effect. Description of the Drawings

[0015] Figure 1 is a three-dimensional schematic diagram of a high-pressure packing of a compressor proposed by the utility model;

[0016] Figure 2 is a structural schematic diagram of the cooling water channel of a high-pressure packing of a compressor proposed by the utility model;

[0017] Figure 3 is a structural schematic diagram of a tangential cut ring of a high-pressure packing of a compressor proposed by the utility model;

[0018] Figure 4 is a structural schematic diagram of a spring ring of a high-pressure packing of a compressor proposed by the utility model.

[0019] Legend Explanation:

[0020] 1, radial cut ring; 2, tangential cut ring; 3, first support ring; 4, second support ring; 5, first three-lobe cut ring; 6, second three-lobe cut ring; 7, spring ring; 8, pressure reducing ring; 9, packing flange; 10, piston rod; 11, cooling water channel; 12, rod shell; 13, air leakage recovery port. Detailed Implementation Modes

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Refer to Figure 1, An embodiment provided by the present utility model: A high-pressure packing for a compressor, including a packing flange 9. The material of the packing flange 9 is usually made of high-pressure resistant steel to ensure safety and stability in a high-pressure environment. The right end of the packing flange 9 is fixedly connected to a rod shell 12. The inner wall of the rod shell 12 is slidably connected to a piston rod 10. The surface of the piston rod 10 is finely polished to reduce frictional losses and improve sealing performance.

[0023] Reference Figures 2 to 4 , The inner wall of the rod shell 12 is fixedly connected with a plurality of radially cut rings 1. The radially cut rings 1 are made of wear-resistant non-metallic materials, which can maintain a stable shape at high temperatures and prevent leakage. This material has excellent heat-resistant performance to adapt to the high-temperature environment during the operation of the compressor. The right end of the radially cut ring 1 is fixedly connected to a tangentially cut ring 2. The tangentially cut ring 2 adopts a six-lobe structure design to provide a more uniform pressure distribution and improve the reliability of sealing.

[0024] The right end of the tangentially cut ring 2 is fixedly connected to a support ring one 3. The support ring one 3 is made of a softer material and can be appropriately deformed under high-pressure conditions, thereby protecting the sealing ring from being extruded. This design ensures the stability of the sealing ring under high pressure and allows a certain degree of deformation to adapt to pressure changes. The right end of the support ring one 3 is fixedly connected to a support ring two 4. The support ring two 4 is made of a metal material to provide additional support to prevent the non-metallic seal from deforming under high pressure. The support ring two 4 is a metal block, and its hard characteristics enable it to maintain its shape under high-pressure conditions and ensure the integrity of the sealing ring.

[0025] The left end of the rod shell 12 is fixedly connected with a sealing component for preventing air leakage. The design of the sealing component can effectively prevent harmful gases from leaking to the external environment and ensure safe operation. The sealing component is designed to handle various types of gases and provide efficient sealing performance. The inner wall of the right end of the rod shell 12 is fixedly connected with two pressure-reducing rings 8. The pressure-reducing rings 8 reduce the pressure of the passing gas, relieve the burden on the sealing ring, and extend its service life. This design helps to reduce the working load of the main sealing ring and improve its durability and reliability.

[0026] The inner wall of the rod housing 12 is provided with a plurality of cooling water channels 11. The arrangement of the cooling water channels 11 greatly reduces the working temperature of the stuffing box body and improves the working environment of the sealing ring. The design of the cooling system ensures that the equipment operates efficiently without performance degradation due to overheating. The sealing assembly includes two three-lobe cut rings one 5. The design of the three-lobe cut ring one 5 enables effective sealing of gas at low pressure, reducing gas loss. The outer parts of the two three-lobe cut rings one 5 are fixedly connected to the inner wall of the left end of the rod housing 12. Its unique three-lobe design enhances the sealing effect, especially when the low-pressure gas is close to atmospheric pressure. The right end of the three-lobe cut ring one 5 is fixedly connected to a three-lobe cut ring two 6. The three-lobe cut ring two 6 further improves the tightness of the seal and coordinates with the three-lobe cut ring one 5.

[0027] The right end of the three-lobe cut ring two 6 is fixedly connected to a spring ring 7. The spring ring 7 provides dynamic compensation ability for the entire sealing system, ensuring tight fit after long-term use. This elastic design can maintain the sealing effect after long-term use and avoid leakage.

[0028] An air leakage recovery port 13 is provided outside the stuffing flange 9 and is recovered through a connected dedicated pipeline. The design of the air leakage recovery port 13 allows for efficient recovery and reuse of the leaked gas, improving economic efficiency and environmental protection. This gas recovery mechanism not only protects the environment but also effectively reduces operating costs, meeting the requirements of sustainable development.

[0029] Working principle: When the high-pressure stuffing system of the compressor is working, first, high-pressure gas is introduced into the system through the stuffing flange 9. The stuffing flange 9 is made of high-pressure-resistant steel and can provide stable structural support under high-pressure conditions. Next, the gas enters the rod housing 12, and the piston rod 10 slides on the inner wall of the rod housing 12. The fine polishing treatment of the piston rod 10 can reduce friction and ensure the efficient operation of the seal. During the operation of the compressor, the radial cut ring 1 in the rod housing 12 provides preliminary sealing. This ring is made of wear-resistant non-metallic material and can maintain its shape under high-temperature conditions to prevent gas leakage. The radial cut ring 1 can adapt to temperature changes and avoid seal failure caused by expansion. Subsequently, the tangential cut ring 2 further enhances the sealing effect. The tangential cut ring 2 adopts a six-lobe structure, which can evenly distribute pressure, reduce wear, and adapt to the deformation requirements in a high-pressure environment.

[0030] Next, the first support ring 3, due to its flexible material properties, prevents the non-metallic seal from being extruded under high-pressure conditions. It can deform when the pressure changes to adapt to the system load and protects the seal ring from damage. The subsequent second support ring 4 is made of hard metal, providing additional structural support for the entire sealing system and ensuring stability under high pressure. A key function of the sealing assembly is to prevent harmful gases from leaking into the environment. The assembly includes multiple sealing rings, including the first three-lobe cut ring 5 and the second three-lobe cut ring 6, which can continue to effectively seal gases under low-pressure conditions close to atmospheric pressure. The three-lobe cut rings work together with the spring coil 7 to enable the sealing system to dynamically adjust and ensure the sealing effect after long-term use. The spring coil 7 provides additional compressive force to help the sealing ring fit more tightly against the piston rod 10.

[0031] The pressure relief ring 8 provided inside the rod housing 12 effectively reduces the pressure of the high-pressure gas leaking from the cylinder. This design not only reduces the pressure burden on the main seal ring but also extends its service life. The pressure relief ring 8 also allows the gas to return to the cylinder during the intake stroke, improving the efficiency of the entire system.

[0032] The cooling water channels 11 run through the rod housing 12, providing the necessary cooling effect to prevent the system from overheating. The cooling water circulating through these channels can keep the stuffing box at a low temperature, ensuring that the seal ring operates at an appropriate temperature and thus extending its life. Finally, the gas leakage recovery port 13 of the stuffing flange 9 is connected to a dedicated recovery pipeline, which can efficiently recover and reuse the leaked gas. This not only improves the economic benefits of the system but also meets the requirements of modern environmental protection.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A compressor high-pressure packing, comprising a packing flange (9), characterized in that: The right end of the packing flange (9) is fixedly connected to a rod housing (12), the inner wall of the rod housing (12) is slidably connected to a piston rod (10), the inner wall of the rod housing (12) is fixedly connected to a plurality of radial cut rings (1), the right end of the radial cut ring (1) is fixedly connected to a tangential cut ring (2), the right end of the tangential cut ring (2) is fixedly connected to a support ring 1 (3), the right end of the support ring 1 (3) is fixedly connected to a support ring 2 (4), the left end of the rod housing (12) is fixedly connected to a sealing assembly for preventing air leakage, the inner wall of the right end of the rod housing (12) is fixedly connected to two pressure reducing rings (8), and the inner wall of the rod housing (12) is provided with a plurality of cooling water channels (11).

2. A compressor high pressure packing according to claim 1, characterized in that: The sealing assembly comprises two three-petal incision rings (5), the outer parts of the two three-petal incision rings (5) are fixedly connected to the inner wall of the left end of the rod shell (12), the right end of the three-petal incision ring (5) is fixedly connected to the three-petal incision ring (6), and the right end of the three-petal incision ring (6) is fixedly connected to the spring ring (7).

3. A compressor high pressure packing according to claim 1, characterized in that: The packing flange (9) is provided with a leaking gas recovery port (13) outside thereof, and the leaking gas is recovered by connecting to a special pipeline.

4. A compressor high pressure packing according to claim 1, characterized in that: The supporting ring 2 (4) is a metal block.

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