CN208350347U - Mechanical seal start and stop experimental provision - Google Patents
Mechanical seal start and stop experimental provision Download PDFInfo
- Publication number
- CN208350347U CN208350347U CN201820823290.3U CN201820823290U CN208350347U CN 208350347 U CN208350347 U CN 208350347U CN 201820823290 U CN201820823290 U CN 201820823290U CN 208350347 U CN208350347 U CN 208350347U
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- CN
- China
- Prior art keywords
- pressure testing
- mechanical seal
- pump
- pump case
- main shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of mechanical seal start and stop experimental provision, including a hydraulic test pump main shaft motor-driven, it is provided with speed probe on the main shaft, mechanical seal to be measured is mounted on axle sleeve；It further include pressure testing pump case, the hydraulic test pump main shaft runs through into pressure testing pump case；The gland, mechanical seal, pressure testing pump case piece together closed pressure testing cavity；Temperature sensor and pressure sensor are installed in the pressure testing cavity；The water inlet pipe and outlet pipe of sensible pressure testing cavity are provided in the pressure testing pump case, the water inlet pipe is connect with water pump.Mechanical seal start and stop experimental provision with above structure simulates true water pump using motor-driven hydraulic test pump main shaft and pressure testing pump case, by filling the water simulation actual condition into pressure testing pump case.Controller facilitates the operation of automatic control motor, water pump of intaking, and multiple sensors are for obtaining and recording experimental data, so that experimentation is without human intervention, experimental result is also more accurate.
Description
Technical field
The utility model relates to the devices that a kind of progress mechanical seal carries out start and stop experiment.
Background technique
Mechanical seal is a kind of gland seal device of rotating machinery.For example centrifugal pump, centrifuge, reaction kettle and compressor etc. are set
It is standby.Since transmission shaft is applied in inside and outside equipment, in this way, the medium in equipment is logical there are a circumferential clearance between axis and equipment
It crosses the gap to leak out, if pressure is subatmospheric in equipment, air is to equipment internal leakage, it is therefore necessary to have a resistance
The gland seal device of stopping leak leakage.There are many type of axle envelope, since mechanical seal has many advantages, such as that leakage rate is few and the service life is long, so generation
Mechanical seal is in the most important sealing mode of these equipment in boundary.Mechanical seal is called end face seal, in the related mark of country
It is defined such that in standard " by least a pair of end face perpendicular to rotation axis in Fluid pressure and compensation mechanism elastic force (or magnetic
Power) effect and auxiliary seal cooperation under keep be bonded and constituted with respect to sliding prevent fluid leak device."
The abrasion of mechanical seal is largely due to caused by start and stop.The durable degree of mechanical seal can be passed through
It is continuous to carry out start and stop experiment to verify.Existing experimental method be all the equipment that is installed to mechanical seal in practice such as
It is carried out in water pump, it is all very inconvenient to the adjustment of the record, experiment method of its parameter, so that conventional efficient is low, experimental data
Inaccurately.
Utility model content
In view of this, the present invention provides a kind of mechanical seal start and stop experimental provisions, convenient to open mechanical seal
Stop testing.
In order to solve the above technical problems, the technical solution of the utility model are as follows: a kind of mechanical seal start and stop experimental provision, packet
A hydraulic test pump main shaft motor-driven is included, is provided with speed probe on the main shaft, it is characterised in that: the hydraulic test pump
Axle sleeve is fixed on main shaft；Mechanical seal to be measured is mounted on axle sleeve；The axle sleeve front end is pushed against using pressure ring；Further include
Pressure testing pump case, the hydraulic test pump main shaft run through into pressure testing pump case；It further include for connecting mechanical seal and pressure testing pump case
Gland；The gland, mechanical seal, pressure testing pump case piece together closed pressure testing cavity；It is equipped in the pressure testing cavity
Temperature sensor and pressure sensor；The water inlet pipe and outlet pipe of sensible pressure testing cavity, institute are provided in the pressure testing pump case
Water inlet pipe is stated to connect with water pump.
As an improvement being provided with shut-off valve on the water inlet pipe, solenoid valve is provided on the outlet pipe.Pass through electricity
Magnet valve and shut-off valve control the intracorporal water flow of pressure testing chamber.
As an improvement further including a controller, the controller and speed probe, temperature sensor, pressure
Sensor, solenoid valve, motor, water pump connection.Equipment is integrally uniformly controlled using a controller, is programmed by PLC
The temporal frequency etc. of experiment is set, and data are recorded by sensor.
The mechanical seal start and stop experimental provision having the beneficial effect that with above structure of the utility model, utilizes motor
The hydraulic test pump main shaft and pressure testing pump case of drive simulate true water pump, simulate practical work by filling the water into pressure testing pump case
Condition.Controller facilitates the operation of automatic control motor, water pump of intaking, and multiple sensors make for obtaining and recording experimental data
Obtain experimentation without human intervention, experimental result is also more accurate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Marked in the figure: 1 pressure ring, 2 axle sleeves, 3 mechanical seals, 4 glands, 5 pressure testing pump cases, 6 solenoid valves, 7 temperature sensors,
8 pressure sensors, 9 controllers, 10 motors, 11 speed probes, 12 hydraulic test pump main shafts, 13 shut-off valves, 14 water pumps, 15 water inlets
Pipe, 16 outlet pipes.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, below with reference to specific implementation
The utility model is described in further detail for mode.
As shown in Figure 1, the utility model includes a hydraulic test pump main shaft motor-driven, it is provided with and turns on the main shaft
Fast sensor, it is characterised in that: be fixed with axle sleeve on the hydraulic test pump main shaft；Mechanical seal to be measured is mounted on axle sleeve；
The axle sleeve front end is pushed against using pressure ring；It further include pressure testing pump case, the hydraulic test pump main shaft runs through into pressure testing pump case；Also wrap
Include the gland for connecting mechanical seal and pressure testing pump case；The gland, mechanical seal, pressure testing pump case piece together closed
Pressure testing cavity；Temperature sensor and pressure sensor are installed in the pressure testing cavity；It is provided in the pressure testing pump case logical
Up to the water inlet pipe and outlet pipe of pressure testing cavity, the water inlet pipe is connect with water pump.Shut-off valve, the water outlet are provided on water inlet pipe
Solenoid valve is provided on pipe.It further include a controller, the controller and speed probe, temperature sensor, pressure sensing
Device, solenoid valve, motor, water pump connection.
Experimental procedure is as follows:
1, mechanical seal 3 is installed on axle sleeve 2, and is connect by gland 4 with pressure testing pump case 5, push against axis using pressure ring 1
Set 2, finally removes the limiting device of mechanical seal.
2, controller 9 is operated, electromagnetic valve for adjusting 6 is shown in a fully open operation.
3, shut-off valve 13 is fully opened, water pump 14 is started, enters Experimental Flowing Object in pressure testing cavity through water inlet pipe 15, makes reality
Fluid is tested to fill full pressure testing cavity and overflow from the pipeline of connection solenoid valve 6.It keeps water pump 14 to operate always, makes in pressure testing cavity
Always Experimental Flowing Object is filled up.
4, controller 9 is operated, motor 10 is started, adjusting motor speed is revolving speed needed for experiment.
5, controller 9 is operated, setting pressure is 1MPa.Console manipulates 6 closure degree of electromagnetic valve for adjusting automatically, works as pressure testing
When cavity internal pressure rises to 1MPa, it is automatically stopped electromagnetic valve for adjusting 6 and to remain closed degree constant, start simultaneously at timing.If
Setting runing time is 12h, and the every 2h of controller 9 automatically records the pressure once tested, time, temperature and revolving speed, artificial irregular
Product leakage situation is observed, relative recording is carried out.
6,12h is run under 1MPa pressure, setting controller 9 operates solenoid valve 6 and opens, and drops pressure to normal pressure, continues
12h is operated, the every 2h of controller automatically records the pressure once tested, time, temperature and revolving speed, and artificial irregularly observation product is let out
Situation is leaked, relative recording is carried out.
7, after normal pressure operation 12h, controller 9 controls motor 10 and powers off, and motor 10 shuts down, and setting dwell time is
2min。
8, it is arranged in the enterprising line program of controller 9, setting motor 10 reruns with solenoid valve 6 according to step 5,6,7.Directly
Reach 500h to the cumulative time.
7, after runing time expires 500 hours, 10 power supply of motor is cut off, stops test.Mechanical seal 3 is exported from controller
Data during test.
8, it switches off the pump 14, dismantles 3 product of mechanical seal, the abrasion loss of 3 drag ring of mechanical seal is measured, and remembers
Record.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (3)
1. a kind of mechanical seal start and stop experimental provision, including a hydraulic test pump main shaft motor-driven, it is arranged on the main shaft
There is speed probe, it is characterised in that: be fixed with axle sleeve on the hydraulic test pump main shaft；Mechanical seal to be measured is mounted on axle sleeve
On；The axle sleeve front end is pushed against using pressure ring；It further include pressure testing pump case, the hydraulic test pump main shaft runs through into pressure testing pump case；
It further include the gland for connecting mechanical seal and pressure testing pump case；The gland, mechanical seal, pressure testing pump case piece together close
The pressure testing cavity closed；Temperature sensor and pressure sensor are installed in the pressure testing cavity；It is arranged in the pressure testing pump case
There are the water inlet pipe and outlet pipe of sensible pressure testing cavity, the water inlet pipe is connect with water pump.
2. a kind of mechanical seal start and stop experimental provision according to claim 1, it is characterised in that: be arranged on the water inlet pipe
There is shut-off valve, is provided with solenoid valve on the outlet pipe.
3. a kind of mechanical seal start and stop experimental provision according to claim 2, it is characterised in that: further include a control
Device, the controller are connect with speed probe, temperature sensor, pressure sensor, solenoid valve, motor, water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823290.3U CN208350347U (en) | 2018-05-30 | 2018-05-30 | Mechanical seal start and stop experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823290.3U CN208350347U (en) | 2018-05-30 | 2018-05-30 | Mechanical seal start and stop experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208350347U true CN208350347U (en) | 2019-01-08 |
Family
ID=64891559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820823290.3U Expired - Fee Related CN208350347U (en) | 2018-05-30 | 2018-05-30 | Mechanical seal start and stop experimental provision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208350347U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024329A (en) * | 2019-12-28 | 2020-04-17 | 清华大学 | High-pressure rotation combined sealing element performance detection and test device and method |
| CN113358895A (en) * | 2021-06-29 | 2021-09-07 | 北京化工大学 | System and method for measuring opening rotation speed of rotary lip-shaped sealing ring |
-
2018
- 2018-05-30 CN CN201820823290.3U patent/CN208350347U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024329A (en) * | 2019-12-28 | 2020-04-17 | 清华大学 | High-pressure rotation combined sealing element performance detection and test device and method |
| CN111024329B (en) * | 2019-12-28 | 2021-09-07 | 清华大学 | High-pressure rotation combined sealing element performance detection and test device and method |
| CN113358895A (en) * | 2021-06-29 | 2021-09-07 | 北京化工大学 | System and method for measuring opening rotation speed of rotary lip-shaped sealing ring |
| CN113358895B (en) * | 2021-06-29 | 2022-04-05 | 北京化工大学 | System and method for measuring opening rotation speed of rotary lip-shaped sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20210530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |