CN213899421U

CN213899421U - Mechanical seal flushing device

Info

Publication number: CN213899421U
Application number: CN202022485891.8U
Authority: CN
Inventors: 崔航; 陈昭霖; 王昊; 高健凯; 殷硕; 周毅; 孟庆学; 李晓刚
Original assignee: Qingdao University of Technology
Current assignee: Qingdao University of Technology
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-08-06
Anticipated expiration: 2030-10-30

Abstract

A mechanical seal flushing device belongs to the technical field of mechanical seal and comprises a filtering assembly, wherein the filtering assembly comprises a shell, a filtering part is coaxially arranged in the shell, the filtering part comprises a corrugated framework, the framework comprises a plurality of folding parts, a filtering layer is connected between every two opposite folding parts, a filtering net covers the framework, a rotating shaft is coaxially arranged in the framework, and the rotating shaft is connected with a motor; the top of the shell is provided with a liquid conveying pipe which is connected with a pump to be flushed; the bottom of casing is equipped with the detachable bottom plate, is equipped with the guiding gutter on the bottom plate, and the guiding gutter intercommunication has the drain pipe, and the drain pipe is connected with the cooler, and the cooler is connected with the controller, and the cooler still communicates has the transport assembly who provides power for the flush fluid, is equipped with the feed liquor pipe on the transport assembly, feed liquor pipe and mechanical seal intercommunication. Through filtering component's setting, can reduce solid particle's deposit, reduced mechanical seal washing unit's washing cost, improved washing efficiency.

Description

Mechanical seal flushing device

Technical Field

The utility model relates to a mechanical seal technical field, concretely relates to mechanical seal washing unit.

Background

The mechanical sealing device is used for solving the problem of sealing between a rotating shaft and a machine body, can prevent fluid leakage, and is widely applied to pump mechanical parts. When some pump machines transport fluid media containing solids, solid particles in the fluid media may enter between two end faces of a mechanical seal to cause end face abrasion, so that the mechanical seal is damaged, and solid particles are deposited in a seal cavity of a pump body to influence the transport efficiency of the fluid media, so that the mechanical seal device needs to be flushed.

The purpose of mechanical seal washing is to take away heat, reduce the temperature of the seal cavity, prevent the liquid film from gasifying, improve lubrication regulation, and prevent dry running and impurity deposition. The flushing of the mechanical seal is the most effective measure for controlling the temperature and prolonging the service life of the mechanical seal. The mechanical seal of the pump to be flushed is easily damaged due to excessive heat, and solid particles are easily deposited; when the mechanical seal of the pump to be flushed is flushed, a large amount of flushing liquid is needed, and the cost is high.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned shortcoming that prior art exists, the utility model discloses a mechanical seal washing unit can reduce the deposit of solid particle, has reduced mechanical seal washing unit's washing cost, has improved cooling efficiency.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a mechanical seal flushing device comprises a filtering assembly, wherein the filtering assembly comprises a shell, a filtering part is coaxially arranged in the shell, the filtering part comprises a corrugated framework, the diameter of the framework is smaller than the inner diameter of the shell, a rotating shaft is coaxially connected in the framework, the rotating shaft is connected with a motor, the framework comprises a plurality of folding parts, a filtering layer is connected between every two opposite folding parts, and a filtering screen is covered on the framework;

the top of the shell is provided with a perfusion tube which is connected with a pump to be flushed; the bottom of casing is equipped with the detachable bottom plate, be equipped with the guiding gutter on the bottom plate, the guiding gutter intercommunication has the drain pipe, the drain pipe is connected with the cooler, the cooler is connected with the controller, the cooler still communicates the transport assembly who provides power for the flush fluid, be equipped with the feed liquor pipe on the transport assembly, the feed liquor pipe communicates with mechanical seal.

Preferably, the conveying assembly is a power pump, and the power pump is provided with a liquid injection port and a liquid discharge port.

Preferably, a flow control valve is arranged on the liquid inlet pipe and connected with the controller.

Preferably, the inner wall of casing is established to smooth wall, one side that the drain pipe was kept away from to the casing bottom is equipped with and hinders the liquid board, it sets up to hinder the slope of liquid board.

Preferably, a temperature detector is arranged on the liquid outlet pipe and connected with the controller.

Preferably, a filter screen is arranged at the joint of the liquid outlet pipe and the shell.

The utility model has the advantages of that:

1. the filtering layer, the filtering screen and other structures in the filtering component provided by the utility model can reduce the deposition of solid particles; the setting of cooler and temperature detector, if the flushing liquid temperature is higher, when the cooler, the cooling with higher speed has improved cooling efficiency.

2. The utility model discloses a flush fluid gets into filtering component, cooler in proper order and handles from treating the export back of washer pump, makes but the flush fluid cyclic utilization, has reduced mechanical seal washing unit's washing cost.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

fig. 1 is a schematic view of the mechanical seal flushing device of the present invention.

In the figure: 1-shell, 2-filtering part, 21-framework, 22-filtering layer, 23-filtering screen, 3-transfusion tube, 4-pump to be washed, 5-bottom plate, 51-diversion groove, 6-liquid outlet pipe, 7-cooler, 8-conveying component, 9-liquid inlet pipe, 10-mechanical seal, 11-flow control valve, 12-liquid blocking plate and 13-temperature detector.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings.

As shown in fig. 1, the utility model comprises a filtering component, the filtering component comprises a casing 1, a filtering part 2 is coaxially arranged in the casing 1, the filtering part 2 comprises a corrugated framework 21, the diameter of the framework 21 is smaller than the inner diameter of the casing 1, a rotating shaft is coaxially connected in the framework 21, and the rotating shaft is connected with a motor to ensure that the framework 21 can smoothly rotate in the casing 1; the framework 21 comprises a plurality of folding parts, a filter layer 22 is connected between two opposite folding parts, and a filter screen 23 is covered on the framework 21; so as to filter particles in the washing process and reduce particle deposition.

The top of the shell 1 is provided with a transfusion tube 3, and the transfusion tube 3 is connected with a pump 4 to be washed; the bottom of the housing 1 is provided with a removable bottom plate 5 to facilitate the removal and replacement of the filter screen 23 and the filter layer 22. A diversion trench 51 is arranged on the bottom plate 5, the diversion trench 51 is communicated with a liquid outlet pipe 6, the liquid outlet pipe 6 is connected with a cooler 7, and the cooler 7 is connected with a controller so as to accelerate cooling when the temperature of the washing liquid is higher and the washing liquid passes through the cooler 7; the cooler 7 is also communicated with a conveying assembly 8 for providing power for flushing liquid, a liquid inlet pipe 9 is arranged on the conveying assembly 8, and the liquid inlet pipe 9 is communicated with a mechanical seal 10. So as to reduce the washing cost of the washing device of the mechanical seal 10 and improve the washing efficiency.

The conveying assembly 8 is set as a power pump, and a liquid injection port and a liquid discharge port are arranged on the power pump so as to conveniently inject flushing liquid and discharge the used flushing liquid. The liquid inlet pipe 9 is provided with a flow control valve 11, and the flow control valve 11 is connected with a controller so as to control the energy output by the conveying assembly 8 to be monitored in real time.

The inner wall of the shell 1 is a smooth wall, one side of the bottom of the shell 1, which is far away from the liquid outlet pipe 6, is provided with a liquid blocking plate 12, and the liquid blocking plate 12 is obliquely arranged so that washing liquid can smoothly flow out.

A temperature detector 13 is arranged on the liquid outlet pipe 6 so as to monitor the temperature of the filtered flushing liquid. A filter screen 23 is arranged at the joint of the liquid outlet pipe 6 and the shell 1 to prevent sundries from flowing out of the liquid outlet pipe 6.

When the washing machine is used, firstly, washing liquid is injected through the liquid injection port of the conveying assembly 8, enters the mechanical seal 10 through the liquid inlet pipe 9, washes the mechanical seal 10, and after washing is finished, the washing liquid is discharged through the outlet of the to-be-washed pump 4; then, the washing liquid enters the filtering component, the motor drives the rotating shaft to start working, the filtering part 2 rotates along with the rotating shaft, the washing liquid is filtered through the filter screen 23 or the filtering layer 22, and solid particles such as residues are filtered; the flush fluid after the filtration passes through guiding gutter 51 inflow cooler 7, when passing through drain pipe 6, detects the temperature of flush fluid, gets into the coolant liquid and cools off, gets into conveying assembly 8 at last, circulates in proper order, if the flush fluid needs to be changed, discharges through conveying assembly 8's leakage fluid dram. The device can reduce the deposition of solid particles, reduce the washing cost of the mechanical seal 10 washing device and improve the washing efficiency.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims

1. A mechanical seal flushing device comprises a filtering assembly and is characterized in that the filtering assembly comprises a shell, a filtering part is coaxially arranged in the shell and comprises a corrugated framework, the diameter of the framework is smaller than the inner diameter of the shell, a rotating shaft is coaxially connected in the framework and is connected with a motor, the framework comprises a plurality of folding parts, a filtering layer is connected between every two opposite folding parts, and a filtering screen is covered on the framework;

2. The mechanical seal flushing device of claim 1, wherein the delivery assembly is configured as a power pump, and the power pump is provided with a liquid injection port and a liquid discharge port.

3. The mechanical seal flushing device of claim 1, wherein the liquid inlet pipe is provided with a flow control valve, and the flow control valve is connected with the controller.

4. The mechanical seal flushing device of claim 1, wherein a liquid blocking plate is disposed on a side of the bottom of the housing away from the liquid outlet pipe, and the liquid blocking plate is disposed obliquely.

5. The mechanical seal flushing device of claim 1, wherein a temperature detector is disposed on the liquid outlet pipe, and the temperature detector is connected to the controller.

6. The mechanical seal flushing device of claim 1, wherein a filter screen is disposed at a connection of the liquid outlet pipe and the housing.