Dustproof packing sealing device of reciprocating compressor
By designing a packing seal device that includes a throttling ring, a sealing ring assembly, and a nitrogen pipeline, the problem of seal wear in dusty environments was solved, achieving effective protection of the sealing ring and stable operation of the equipment, reducing the frequency of failures and costs.
Patent Information
- Application Number
- CN202520632608.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Traditional packing seals are prone to wear and failure in dusty environments, leading to frequent air leaks and equipment malfunctions, increasing waste of process media and maintenance costs.
Design a packing sealing device that includes a throttling ring, a sealing ring assembly, a reverse sealing ring assembly, a tangential ring assembly, a purge gas pipeline, and a nitrogen pipeline. Through a specific combination and pipeline arrangement, dust recovery and effective protection of the sealing rings can be achieved.
It improves the operational reliability of reciprocating compressors under dusty conditions, reduces air leakage and failure frequency, and lowers equipment maintenance costs and process media waste.
Smart Images
Figure CN223814355U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to sealing equipment technical field, concretely relates to a reciprocating compressor dustproof packing sealing device. BACKGROUND
[0002] The reciprocating compressor medium contains dust only in a few special cases, which is greatly related to the previous system process and drying agent characteristics, and the dustproof packing seal can ensure the reliability of the reciprocating compressor operation under the working condition, reduce air leakage, reduce the failure frequency, reduce the process medium waste and equipment maintenance cost.
[0003] The traditional packing seal causes the axial gap of each sealing ring in the packing box to become smaller, and the end face of the ring and the box to become worse, so that the ring is stuck in the box and cannot float freely, and the sealing ring is worn out.
[0004] Therefore, the dustproof packing sealing device of the reciprocating compressor is developed to replace the prior art. INVENTION CONTENTS
[0005] The utility model aims at providing a reciprocating compressor dustproof packing seal to solve the sealing wear and leakage problem when the reciprocating compressor medium contains dust.
[0006] A reciprocating compressor dustproof packing sealing device, comprising a cylinder body, a packing box and a piston rod, characterized in that: the piston rod and the cylinder body are sealed with the packing box.
[0007] The packing box comprises a throttle ring, a sealing ring group, a reverse sealing ring group, a tangential ring group, a purge gas pipeline, a high-pressure leakage recovery pipeline, a low-pressure leakage recovery pipeline and an isolation nitrogen pipeline, the throttle ring, the sealing ring group, the reverse sealing ring group and the tangential ring group are sequentially arranged on the piston rod from right to left, the purge gas pipeline is arranged between the tangential ring group and the reverse sealing ring group, and the low-pressure leakage recovery pipeline and the isolation nitrogen pipeline are intermittently arranged between the tangential ring group.
[0008] The purge gas pipeline and the isolation nitrogen pipeline are both provided with self-operated regulating valves.
[0009] Compared with the prior art, the utility model has the following advantages:
[0010] The utility model has the following advantages: the packing box is combined by the throttle ring, the sealing ring group, the reverse sealing ring group and the tangential ring group in a specific way. The high-pressure leakage recovery pipeline and the hydrogen purge pipeline are added. The dust and packing leakage of the drying machine are recovered, the packing operation environment is improved, the dustproof packing seal can ensure the reliability of the reciprocating compressor operation under the working condition, reduce air leakage, reduce the failure frequency, reduce the process medium waste and equipment maintenance cost. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 is the initial state perspective view of the utility model. DETAILED DESCRIPTION
[0012] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model.
[0013] In one embodiment, as shown in Figure 1 A reciprocating compressor dust-resistant packing seal device, comprising a cylinder body 1, a packing box 2 and a piston rod 3, characterized in that the piston rod 3 is sealed with the packing box 2 and the cylinder body 1.
[0014] In one embodiment, the packing box 2 comprises a throttle ring 5, a sealing ring group 6, a reverse sealing ring group 7, a tangential ring group 8, a purge gas pipeline 9, a high-pressure leakage recovery pipeline 10, a low-pressure leakage recovery pipeline 11 and an isolation nitrogen pipeline 12, the throttle ring 5, the sealing ring group 6, the reverse sealing ring group 7 and the tangential ring group 8 are sequentially arranged on the piston rod 3 from right to left, the purge gas pipeline 9 is arranged between the tangential ring group 8 and the reverse sealing ring group 7, and the low-pressure leakage recovery pipeline 11 and the isolation nitrogen pipeline 12 are intermittently arranged between the tangential ring group 8.
[0015] In one embodiment, the purge gas pipeline 9 and the isolation nitrogen pipeline 12 are both provided with self-operated regulating valves 4.
[0016] The pressure side gas medium enters the four sealing ring groups 6 through two throttle rings 5, the sealing ring groups 6 are combined with radial rings and tangential rings, the radial rings are arranged on the pressure side, a small amount of leakage gas and dust particles are recovered through the high-pressure leakage recovery pipeline 10, the purge gas enters the packing box 2 cavity through the purge gas pipeline 9, the medium side passes through two reverse sealing ring groups 7, and the dust particles are swept to the high-pressure leakage recovery pipeline 10, the sealing ring groups 6 are combined with radial rings and tangential rings, the radial rings are reversely arranged, the low-pressure leakage recovery pipeline 11 gas side adopts two tangential ring groups 8, the isolation nitrogen side adopts one tangential ring group 8, the low-pressure leakage recovery pipeline 11 introduces a small amount of leakage gas into an external flare system, the isolation nitrogen atmosphere side adopts one tangential ring group 8, and the medium gas is prevented from leaking out.
[0017] The raw material gas compressor has not appeared fault maintenance for 6 months after running after the packing seal of the utility model, the packing seal is good, the low-pressure leakage recovery temperature is less than 40 DEG C (alarm temperature 65 DEG C), the compressor running state is good, and the long-term stable operation of the device is ensured.
Claims
1. A dust-proof packing seal device for reciprocating compressor, comprising a cylinder (1), a packing box (2) and a piston rod (3), characterized in that: The piston rod (3) is sealed with the cylinder (1) by a stuffing box (2); The stuffing box (2) comprises a throttle ring (5), a sealing ring group (6), a reverse sealing ring group (7), a tangential ring group (8), a purge gas pipeline (9), a high-pressure leakage recovery pipeline (10), a low-pressure leakage recovery pipeline (11) and an isolation nitrogen pipeline (12), the throttle ring (5), the sealing ring group (6), the reverse sealing ring group (7) and the tangential ring group (8) are sequentially arranged on the piston rod (3) from right to left, the purge gas pipeline (9) is arranged between the tangential ring group (8) and the reverse sealing ring group (7), and the low-pressure leakage recovery pipeline (11) and the isolation nitrogen pipeline (12) are intermittently arranged between the tangential ring group (8).
2. A dust-proof packing seal device for a reciprocating compressor according to claim 1, characterized in that: The purge gas pipeline (9) and the isolation nitrogen pipeline (12) are each provided with a self-operated regulating valve (4).