CN214787957U

CN214787957U - High-pressure plunger pump packing device

Info

Publication number: CN214787957U
Application number: CN202120644410.5U
Authority: CN
Inventors: 潘易之
Original assignee: Xinjiang Yuxiang Huyang Chemical Co ltd
Current assignee: Xinjiang Yuxiang Huyang Chemical Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-11-19
Anticipated expiration: 2031-03-30

Abstract

The utility model relates to a high-pressure plunger pump packing device, including the plunger, main packing bucket, main packing box, vice packing bucket, vice packing box, be equipped with main packing box on the left part inner wall of main packing bucket, the inner wall of main packing box and the outer wall contact of plunger, the right part inner wall of main packing bucket is equipped with vice packing bucket, be equipped with vice packing box on the inner wall of vice packing bucket, the inner wall of vice packing box and the inner wall contact of plunger, be equipped with the washing water ring between main packing box and the vice packing box, be equipped with the sparge water import and the sparge water export with washing water ring intercommunication on the main packing bucket. Increase washing water ring is along axial length, the diameter of sparge water import, the diameter of sparge water export, simultaneously, and the clearance increase 1mm between washing water ring and the plunger outer wall, can be abundant take away the heat that plunger and filler friction produced, can wash away the piece behind the filler wearing and tearing, effectively improve the washing effect and prevent that washing water ring from blockking up.

Description

High-pressure plunger pump packing device

Technical Field

The utility model discloses a high-pressure plunger pump filler device belongs to chemical production technical field.

Background

At present, a domestic horizontal three-cylinder single-action plunger reciprocating pump is often used for pressurizing and conveying liquid ammonia and ammonium carbamate liquid respectively in a urea device. The plunger pump is designed to be of a continuous operation type, and the flow of the pump is subjected to stepless speed regulation within a process index range by driving a gear speed reducer through a frequency converter by a motor. The plunger pump is the core equipment of urea device, and plunger, filler high temperature damage frequently appears in recent years, seriously influences the stable operation of device, though follow-up has made "safe maintenance regulation" and "maintenance regulation", all overhauls and some inspection work are strictly carried out according to the regulation, but the part high temperature damage condition has not been improved.

Disclosure of Invention

An object of the utility model is to provide a avoid plunger and high pressure plunger pump filler device that packs high temperature and damage.

The purpose of the utility model is realized like this: the high-pressure plunger pump packing device comprises a plunger, a main packing barrel and a main packing box, vice stuffing box, but the inside at main stuffing box is installed to the plunger linear motion ground, be equipped with main stuffing box on the left part inner wall of main stuffing box, the inner wall of main stuffing box and the outer wall contact of plunger, the right part inner wall of main stuffing box is equipped with vice stuffing box, be equipped with vice stuffing box on the inner wall of vice stuffing box, the inner wall of vice stuffing box and the inner wall contact of plunger, be equipped with the washing water ring between main stuffing box and the vice stuffing box, be equipped with the sparge water import and the sparge water export with washing water ring intercommunication on the main stuffing box, the length of washing water ring along axial includes basic length and extra long length, the radius of sparge water import includes import basic radius and import extra long radius, the radius of sparge water export includes export basic radius and export extra long radius, the clearance between washing water ring and the plunger outer wall includes basic clearance and extension clearance.

And sealing rings are arranged between the inner wall of the main packing bucket, the outer wall of the auxiliary packing bucket and the flushing water ring.

Due to the adoption of the technical scheme, the axial length of the flushing water ring, the diameter of a flushing water inlet and the diameter of a flushing water outlet are increased, and meanwhile, the gap between the flushing water ring and the outer wall of the plunger is increased by 1mm, so that heat generated by friction between the plunger and the filler can be sufficiently taken away, the worn filler can be flushed away by scraps, the flushing effect is effectively improved, and the flushing water ring is prevented from being blocked; meanwhile, lubrication can be guaranteed at effective fixed points, the service life of parts is prolonged, and the consumption of auxiliary materials is reduced; the problems of process machine reversing and equipment maintenance frequency are effectively solved, safety accidents are reduced, and the method plays a very obvious role.

Drawings

The specific structure of the utility model is given by the following drawings and embodiments:

FIG. 1 is a schematic sectional front view of a packing device of a high-pressure plunger pump;

FIG. 2 is a schematic view of the length of the flushing water ring;

FIG. 3 is a schematic top view of a flush water inlet;

FIG. 4 is a schematic top view of the flush water outlet;

fig. 5 is a schematic view of the structure of the gap between the flushing water ring and the outer wall of the plunger.

Legend: 1. plunger, 2, main stuffing barrel, 3, main stuffing box, 4, auxiliary stuffing barrel, 5, auxiliary stuffing box, 6, sealing ring, 7, washing water inlet, 8 and washing water outlet.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

Example (b): as shown in figure 1, the high-pressure plunger pump packing device comprises a plunger 1, a main packing barrel 2, a main packing box 3, an auxiliary packing barrel 4 and an auxiliary packing box 5, wherein the plunger is linearly movably arranged in the main packing barrel, the left inner wall of the main packing barrel is provided with the main packing box, the inner wall of the main packing box is contacted with the outer wall of the plunger, the right inner wall of the main packing barrel is provided with the auxiliary packing barrel, the inner wall of the auxiliary packing barrel is provided with the auxiliary packing box, the inner wall of the auxiliary packing box is contacted with the inner wall of the plunger, a flushing water ring is arranged between the main packing box and the auxiliary packing box, the main packing barrel is provided with a flushing water inlet 7 and a flushing water outlet 8 which are communicated with the flushing water ring, the axial length a of the flushing water ring comprises a basic length a0 and an extended length a1, the radius of the flushing water inlet comprises an inlet basic radius b0 and an inlet extended radius b1, the radius of the flushing water outlet comprises an outlet basic radius c0 and an outlet extended radius c1, the gap d between the flushing water ring and the outer wall of the plunger comprises a basal gap d0 and an elongated gap d 1. And a sealing ring 6 is arranged between the inner wall of the main packing bucket, the outer wall of the auxiliary packing bucket and the flushing water ring.

The working principle of the utility model is as follows: the axial length of the flushing water ring, the diameter b of a flushing water inlet and the diameter c of a flushing water outlet are increased, meanwhile, the gap between the flushing water ring and the outer wall of the plunger is increased by 1mm, heat generated by friction between the plunger and the filler can be fully taken away, chips generated by abrasion of the filler can be flushed away, the flushing effect is effectively improved, and the flushing water ring is prevented from being blocked; meanwhile, lubrication can be guaranteed at effective fixed points, the service life of parts is prolonged, and the consumption of auxiliary materials is reduced; the problems of process machine reversing and equipment maintenance frequency are effectively solved, safety accidents are reduced, and the method plays a very obvious role.

The foregoing description is by way of example only and is not intended as limiting the embodiments of the present invention. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.

Claims

1. The utility model provides a high pressure plunger pump packing device which characterized in that: comprises a plunger piston, a main stuffing barrel and a main stuffing box, vice stuffing box, but the inside at main stuffing box is installed to the plunger linear motion ground, be equipped with main stuffing box on the left part inner wall of main stuffing box, the inner wall of main stuffing box and the outer wall contact of plunger, the right part inner wall of main stuffing box is equipped with vice stuffing box, be equipped with vice stuffing box on the inner wall of vice stuffing box, the inner wall of vice stuffing box and the inner wall contact of plunger, be equipped with the washing water ring between main stuffing box and the vice stuffing box, be equipped with the sparge water import and the sparge water export with washing water ring intercommunication on the main stuffing box, the length of washing water ring along axial includes basic length and extra long length, the radius of sparge water import includes import basic radius and import extra long radius, the radius of sparge water export includes export basic radius and export extra long radius, the clearance between washing water ring and the plunger outer wall includes basic clearance and extension clearance.

2. The high pressure plunger pump packing apparatus of claim 1, wherein: and sealing rings are arranged between the inner wall of the main packing bucket, the outer wall of the auxiliary packing bucket and the flushing water ring.