High-pressure mechanical sealing surface damage repairing device

Abstract

The utility model discloses a high-pressure mechanical sealing surface damage repairing device which comprises a machine base, a gear motor is arranged on the upper portion of the machine base, a transmission shaft of the gear motor penetrates through the machine base, the lower portion of the transmission shaft is connected with an automatic feeding tool table, and a turning tool is arranged on the lower portion of the automatic feeding tool table. Fastening bolts are further arranged on the lower portion of the machine base, when the repairing device is installed, the machine base is fixedly installed on the overflowing part needing to be repaired, and it is ensured that fixation is compact. The device can be used for repairing a rotten and damaged sealing surface in an ore pulp pipeline system, so that field equipment can be put into use as soon as possible to recover production, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sealing surface repair, specifically relates to a high pressure mechanical sealing surface damage repair device. BACKGROUND

[0002] The realization of the pipeline conveying process cannot be separated from the guarantee of equipment, when the fatigue of the equipment accumulates to a certain degree, especially at the part (hereinafter referred to as the flow part) through which the iron ore concentrate slurry passes, there are corrosion of the slurry and stress change of the pressure difference, etc., which are still relatively serious to the damage of the equipment. The most typical one is the diaphragm pump, which is the core equipment of pipeline conveying, mainly for pressurizing the slurry to meet the pressure requirement (such as 20MPa) of pipeline conveying, the flow part runs in the working condition of large pressure difference, and it is relatively easy to appear leakage and other conditions. The main reason for its damage is the high pressure slurry leakage caused by the corrosion damage of the sealing surface of the flow part due to long time operation, and the high pressure, high concentration iron ore concentrate high speed flushing of the flow part, causing the damage of the flow part. If the damaged sealing surface of the flow part can be repaired on site, the damaged equipment can be repaired in the shortest time, and put into production process as soon as possible, so as to improve the production efficiency. Traditionally, for the damage of the sealing surface of the flow part, it is often necessary to stop after disassembling, transporting to the professional repair site for repair or replacement, which takes a long time, and because the equipment is large in size and heavy in weight, the transportation and maintenance cost is high. In addition, frequent shutdown and maintenance will seriously affect the production progress and reduce the overall production efficiency.

[0003] Therefore, there is an urgent need in the market for a device that can be installed at the repair position at any time, and can quickly and effectively repair the damage of the high pressure mechanical sealing surface. The device should have portability, easy operation, and the ability to quickly adapt to different working conditions and complete the repair work, so as to minimize downtime, ensure the continuous and stable operation of the production line, and improve the overall production efficiency and economic benefit. The utility model is proposed based on the actual needs in the above background technology, and aims to provide a high pressure mechanical sealing surface damage repair device and its use method, which can be directly installed at the sealing surface position to be repaired, without disassembling the equipment, so as to realize on-site quick repair, greatly improve the maintenance efficiency and production continuity, and reduce the maintenance cost and production loss. UTILITY MODEL CONTENTS

[0004] The utility model aims at: in view of the above existing problems, provide a kind of high pressure mechanical sealing surface damage repair device, can repair the sealing surface of the corrosion damage in the slurry pipeline system, so as to reach the production recovery of the on-site equipment as soon as possible, improve production efficiency.

[0005] The technical scheme of the utility model is as follows:

[0006] The utility model discloses a high pressure mechanical sealing surface damage repair device, including the base (1), the base (1) upper portion is provided with the speed reducer motor (2), and the transmission shaft (21) of speed reducer motor (2) passes through the base (1), and the automatic feed tool rest (3) is connected to the transmission shaft (21) lower part, and the automatic feed tool rest (3) lower part is provided with the turning tool (4), the lower part of base is also provided with the fastening bolt, when installing the repair device, install and fix the base on the overcurrent component that needs to be repaired, ensure compact fixation.

[0007] Further, the base (1) is fixed on the upper part of the valve box (5) of the overcurrent component to be repaired by the fastening bolt.

[0008] Further, the speed reducer motor (2) is installed on the base (1) through the motor base (6), the rotating speed of the speed reducer motor (2) is less than 150n / min, the rotating speed range should be 0-150n / min, if the rotating speed is too high, the vibration of the device will be increased, and the accuracy and safety of the repair work will be affected.

[0009] Further, the bearing (22) is arranged in the motor base (6), and the transmission shaft (21) passes through the base (1) from the inside of the bearing (22).

[0010] Further, the transmission shaft (21) is telescopic, so that the automatic feed tool rest can be displaced in the vertical position.

[0011] Further, the automatic control application single-chip microcomputer is further included, and the automatic control application single-chip microcomputer is used for inputting a repair scheme and converting the repair scheme into an instruction output to the automatic control tool rest for repairing the overcurrent component to be repaired.

[0012] Further, the turning tool (4) includes a turning tool, a chamfering tool and an end face tool, and the turning tool (4) is selected according to needs and is made of a hard alloy tool, so that the hardness and hot hardness of the turning tool can meet the working requirements.

[0013] In conclusion, due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0014] 1. The high pressure mechanical sealing surface damage repair device and the using method thereof can realize on-site rapid repair without disassembling the equipment, greatly improve the maintenance efficiency and production continuity, and reduce the maintenance cost and production loss.

[0015] 2. The utility model can accurately control the repair work through the automatic control application single-chip microcomputer, effectively improve the accuracy of the repair work, reduce the subsequent failure frequency and improve the production efficiency. DRAWINGS

[0016] The utility model will be explained by examples and with reference to the drawings, in which:

[0017] Figure 1 is a working state schematic view of the high-pressure mechanical seal surface damage repairing device and the using method thereof.

[0018] Reference signs: 1 - machine base, 2 - speed reducer motor, 21 - transmission shaft, 22 - bearing, 3 - automatic feeding tool rest, 4 - turning tool, 5 - valve box of overcurrent part to be repaired, 6 - motor base. DETAILED DESCRIPTION

[0019] All features disclosed in this specification, and all steps of any methods or processes disclosed, may be combined in any combination, except combinations where at least some of the features and / or steps are mutually exclusive.

[0020] Any feature disclosed in this specification, unless stated otherwise, can be replaced by any equivalent or similar feature, or combination thereof. That is, each feature disclosed is only one example of a number of equivalent or similar features that could be substituted for it.

[0021] The utility model discloses a high-pressure mechanical seal surface damage repairing device, including machine base 1, the upper portion of machine base 1 is provided with speed reducer motor 2, the transmission shaft 21 of speed reducer motor 2 passes through machine base 1, and the lower part of transmission shaft 21 is connected with automatic feeding tool rest 3, and automatic feeding tool rest 3 lower part is provided with turning tool 4, the lower part of machine base is also provided with fastening bolt, when installing repairing device, install and fix machine base on the overcurrent part that needs to be repaired, ensure compact fixation.

[0022] The high-pressure mechanical seal surface damage repairing device comprises the following steps:

[0023] S1: the seal surface that needs to be repaired is surveyed and mapped, a size drawing is made, a repairing scheme is determined, the original size of the seal surface is determined first, the overcurrent part is surveyed and mapped on site, and computer mapping is performed; the size of the corresponding seal surface is surveyed and mapped, and computer mapping is performed; initial data are obtained, corresponding industrial simulation is determined by research and analysis, and the processing size of the mode surface is determined;

[0024] S2: the data of the repairing scheme are input into the automatic control application single-chip microcomputer;

[0025] S3: the damaged seal surface is manually repaired, the seal surface is repaired, generally welding repair method, laser accumulation, electroplating accumulation and other methods are used, considering the cost and construction difficulty, welding repair method is mainly used in the production site;

[0026] S4: the high-pressure mechanical seal surface damage repairing device is fixed on the overcurrent part that needs to be repaired through the fastening bolt, and is leveled, so that the automatic feeding tool rest 3 and the seal surface are on the same horizontal plane;

[0027] S5: Start the geared motor 2, use the microcontroller of the automatic control application to control the automatic feed tool table 3 to slowly move downwards, start fine repair according to the repair plan, and stop and push out the tool edge after the required measurement dimensions are met;

[0028] S6: Disassemble the high-pressure mechanical seal surface damage repair device; repair complete.

[0029] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0030] like Figure 1 As shown, based on the material characteristics of the flow-through components and the erosion angle, range, and depth, the corresponding repair method is selected to ensure that the selected material has good wear resistance and corrosion resistance. Currently known repair methods include welding, laser deposition, and electroplating. Considering cost and construction difficulty, welding is the primary method used in production. However, the welding method requires determining the correct welding process based on different materials, as a correct welding process can achieve twice the result with half the effort. This necessitates researching the material properties of the base material, determining its physical and chemical characteristics, and developing a suitable welding process to fill and repair the erosion points. The final repair method for the erosion points is then determined. For example, for the repair of the sealing surface of a knife valve, tungsten inert gas welding can be used, resulting in a beautiful weld formation and a small heat-affected zone, ensuring that the repaired knife valve has good wear resistance and sealing performance. Similarly, for the repair of the sealing surface of a ball valve, insert welding can meet the high precision and alignment requirements of ball valve sealing surface repair, ensuring the sealing performance after welding.

[0031] After the repair material has cured, the repaired area needs to be trimmed to ensure the sealing surface meets installation dimensions and can be installed in the corresponding position. The repaired flow components undergo quality inspection to identify surface defects, and appropriate processing methods and dimensional restoration are determined based on the material properties. This process begins by determining the original dimensions of the sealing surface, performing on-site surveying and computer-generated mapping (CAD) of the abraded flow components; then, measuring and mapping the dimensions of the corresponding sealing surface for installation, and performing CAD drawing; obtaining initial data, analyzing and determining the corresponding industrial simulation, and finally determining the processing dimensions of the model surface.

[0032] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A high pressure mechanical seal face damage repair device comprising a housing (1), characterized in that, The upper part of the base (1) is provided with a speed reducer motor (2), the transmission shaft (21) of the speed reducer motor (2) passes through the base (1), the lower part of the transmission shaft (21) is connected with an automatic feeding tool rest (3), the lower part of the automatic feeding tool rest (3) is provided with a turning tool (4); the lower part of the base is also provided with a fastening bolt.

2. A high pressure mechanical seal face damage repair device according to claim 1, wherein, The base (1) is fixed on the upper part of the valve box (5) of the repaired overcurrent component by the fastening bolt.

3. A high pressure mechanical seal face damage repair device as defined in claim 1, wherein, The speed reducer motor (2) is installed on the base (1) through a motor base (6), and the rotating speed of the speed reducer motor (2) is less than 150n / min.

4. A high pressure mechanical seal face damage repair device according to claim 3, wherein, A bearing (22) is arranged in the motor base (6), and the transmission shaft (21) passes through the base (1) from the inside of the bearing (22).

5. A high pressure mechanical seal face damage repair device in accordance with claim 1, wherein, The transmission shaft (21) is telescopic.

6. A high pressure mechanical seal face damage repair device in accordance with claim 1, wherein, An automatic control single-chip microcomputer is further included.

7. A high pressure mechanical seal face damage repair device in accordance with claim 1, wherein, The turning tool (4) includes a turning tool, a chamfering tool and a face tool, and the turning tool (4) adopts a hard alloy tool.

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