CN107101691A - A kind of test device and method of new stern shaft seal gland leakage rate - Google Patents
A kind of test device and method of new stern shaft seal gland leakage rate Download PDFInfo
- Publication number
- CN107101691A CN107101691A CN201710265312.9A CN201710265312A CN107101691A CN 107101691 A CN107101691 A CN 107101691A CN 201710265312 A CN201710265312 A CN 201710265312A CN 107101691 A CN107101691 A CN 107101691A
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- catch box
- liquid
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- leakage
- solenoid valve
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of test device and method of new stern shaft seal gland leakage rate, its device includes catch box and the PLC being connected with computer, the top of the catch box is provided with leakage fluid entrance, the leakage fluid porch is provided with inlet solenoid valve, the bottom of the catch box is exported provided with leakage fluid, the leakage fluid exit is provided with outlet solenoid valve, ultrasonic level gage and liquid-level switch sensor are additionally provided with the catch box, the PLC respectively with inlet solenoid valve, outlet solenoid valve, ultrasonic level gage, liquid-level switch sensor is connected.The advantage of the invention is that：It realizes the automatic test to stern shaft seal gland leakage liquid, and data upload preservation in real time, the need for meeting stern shaft seal gland monitoring system to the real-time collection of leakage fluid, is easy to the state analysis and fault diagnosis of monitoring system.
Description
Technical field
The present invention relates to mechanical device sealing property technical field of measurement and test, and in particular to a kind of new stern shaft seal gland is let out
The test device and method of leakage quantity.
Background technology
Stern shaft seal gland is the important part of marine shafting, and it is to prevent seawater from penetrating into hull from stern tube that it, which is acted on,
And stern tube shaft lubrication leakage polluted seawater.
Stern shaft seal gland is located at hull bottom, and a part is goed deep into seawater, and this brings inconvenience to the maintaining of device, and
It easily breaks down, therefore the operation of the reliability of stern shaft seal gland, stability and durability to ship is most important.
In the Design and manufacturing process of stern shaft seal gland, the sealed working parameters of test mechanical are required for, for commenting
Estimate the stability, reliability and the ability for adapting to variable working condition of sealing pair, and design, including end face knot are optimized to sealing device
Structure, annular seal space operating pressure and spring pre compressed magnitude etc..Test wherein to sealing device leakage rate is important one side.It is existing
Stage typically uses steady state measurement in laboratory to the measurement of stern shaft seal gland leakage rate, i.e., in sealing device stable operation
When, leakage fluid is collected in leakage hole with measurer, leakage rate is recorded at regular intervals.But automatization level is low, it is necessary to test
Personnel's real-time recorded data at the scene, it is impossible to the need for adapting to monitoring in real time, computer measurement and control field, institute are sealed particularly with stern
Some state parameters are required for real-time detection, carry out Treatment Analysis by the incoming computer of network, status display is simultaneously entered to device
Row fault diagnosis.
The content of the invention
Present invention aim to the deficiency for existing apparatus, there is provided a kind of new stern shaft seal gland leakage rate
Test device and method, can both improve automatization level low, it is not necessary to tester's real-time recorded data at the scene, adapt to
In real time the need for monitoring, and state parameter without detecting in real time, you can carries out fault diagnosis to device.
To achieve the above object, a kind of test device of new stern shaft seal gland leakage rate involved in the present invention and side
Method, its device includes catch box and the PLC being connected with computer, and the top of the catch box is provided with leakage fluid entrance,
The leakage fluid porch is provided with inlet solenoid valve, and the bottom of the catch box is exported provided with leakage fluid, the leakage fluid outlet
Place is provided with outlet solenoid valve, the catch box and is additionally provided with ultrasonic level gage and liquid-level switch sensor, the PLC
Connected respectively with inlet solenoid valve, outlet solenoid valve, ultrasonic level gage, liquid-level switch sensor.
Further, the ultrasonic level gage is arranged at the top of catch box, and has 10cm~20cm setting height(from bottom).This
Sample, can preferably eliminate the measurement blind area of ultrasonic level gage.
Further, the liquid-level switch sensor is arranged at the top of catch box, the biography of the liquid-level switch sensor
Sense head is arranged at the preset height of catch box.
As preference, the catch box bottom is provided with support.
As preference, the leakage fluid entrance is provided with funnel.
Its method comprises the following steps：
Step 1：PLC sends instruction, and Driver Entry closed electromagnetic valve, outlet solenoid valve is opened, and catch box starts
Original leakage liquid is discharged, while PLC starts timing；
Step 2：After the timing time of PLC reaches the outlet solenoid valve opening time pre-set, now collect
Liquid case internal leakage liquid has been emptied, and PLC sends instruction, and Driver Entry magnetic valve is opened, and outlet solenoid valve is closed, liquid collecting
Case starts to collect leakage liquid, and now PLC starts the timing of this measurement period；
Step 3：When the liquid level of catch box internal leakage liquid reaches setting height, liquid-level switch sensor is to PLC controls
Device output switch amount signal, PLC stops timing and sends control instruction, and Driver Entry closed electromagnetic valve exports electromagnetism
Valve is opened, and catch box starts discharge opeing, one-shot measurement end cycle；
Step 4：This cycle time of measuring is uploaded to computer and shown by PLC, while being surveyed into next
Amount cycle, i.e. repeat step 2,3,4.
Both further, in step 1~4, the inlet solenoid valve and outlet solenoid valve use interlock protection, i.e.,
It can not open or simultaneously close off simultaneously.
Further, in the step 3, when the liquid level of the catch box internal leakage liquid reaches setting height, that is, let out
When leakage body is contacted with sensing head, liquid-level switch sensor starts to PLC output switch amount signal.
The advantage of the invention is that：It is low that it can both improve automatization level, it is not necessary to which tester remembers in real time at the scene
Data are recorded, the need for adapting to monitoring in real time, and state parameter without detecting in real time, you can carries out fault diagnosis to device.
It realizes the automatic test to stern shaft seal gland leakage liquid, and data upload preservation, meet stern shaft seal gland in real time
The need for monitoring system is to the real-time collection of leakage fluid, it is easy to the state analysis and fault diagnosis of monitoring system.
Brief description of the drawings
Fig. 1 is attachment structure schematic diagram of the invention；
Fig. 2 is the structural representation of catch box；
In figure：Catch box 1 is (wherein：Support 1.1), leakage fluid entrance 2 (wherein：Funnel 2.1), inlet solenoid valve 3, leakage
Liquid outlet 4, outlet solenoid valve 5, ultrasonic level gage 6, liquid-level switch sensor 7 are (wherein：Sensing head 7.1), PLC 8,
Computer 9.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
The test device and method of a kind of new stern shaft seal gland leakage rate as shown in Fig. 1~2, its device include collection
Liquid case 1 and the PLC 8 being connected with computer 9, the top of the catch box 1 are provided with leakage fluid entrance 2, the leakage fluid
Inlet solenoid valve 3 is provided with entrance 2, the bottom of the catch box 1 is provided with leakage fluid outlet 4, and the leakage fluid is exported to be provided with 4
Ultrasonic level gage 6 and liquid-level switch sensor 7, the PLC 8 are additionally provided with outlet solenoid valve 5, the catch box 1
Connected respectively with inlet solenoid valve 3, outlet solenoid valve 5, ultrasonic level gage 6, liquid-level switch sensor 7.The ultrasonic solution
Position meter 6 is arranged on the top of catch box 1, and has 15cm setting height(from bottom).The liquid-level switch sensor 7 is pushed up installed in catch box 1
Portion, the sensing head 7.1 of the liquid-level switch sensor 7 is arranged at the preset height of catch box 1.The bottom of catch box 1 is set
There is support 1.1.The leakage fluid entrance 2 is provided with funnel 2.1.
Its method comprises the following steps：
Step 1：PLC 8 sends instruction, and Driver Entry magnetic valve 3 is closed, and outlet solenoid valve 5 is opened, catch box 1
Start to discharge original leakage liquid, while PLC 8 starts timing；
Step 2：After the timing time of PLC 8 reaches 5 opening time of outlet solenoid valve pre-set, now
The internal leakage liquid of catch box 1 has been emptied, and PLC 8 sends instruction, and Driver Entry magnetic valve 3 is opened, and outlet solenoid valve 5 is closed
Close, catch box 1 starts to collect leakage liquid, and now PLC 8 starts the timing of this measurement period；
Step 3：When the liquid level of the internal leakage liquid of catch box 1 reaches setting height, i.e., leakage liquid connects with sensing head 7.1
When touching, liquid-level switch sensor 7 starts to the output switch amount signal of PLC 8, and PLC 8 stops timing and sends control
System instruction, Driver Entry magnetic valve 3 is closed, and outlet solenoid valve 5 is opened, and catch box 1 starts discharge opeing, one-shot measurement end cycle；
Step 4：This cycle time of measuring is uploaded to computer 9 and shown by PLC 8, while into next
Measurement period, i.e. repeat step 2,3,4.
In step 1~4, the inlet solenoid valve 3 and outlet solenoid valve 5 use interlock protection, i.e., both can not be same
When open or simultaneously close off.
Finally it is pointed out that above example is only the more representational example of the present invention.It is clear that the invention is not restricted to
Above-described embodiment, can also there is many deformations.All technical spirits according to the present invention are to made for any of the above embodiments any simple
Modification, equivalent variations and modification, are considered as belonging to protection scope of the present invention.
Claims (8)
1. a kind of test device of new stern shaft seal gland leakage rate, it is characterised in that：Including catch box (1) and and computer
(9) PLC (8) of connection, the top of the catch box (1) is provided with leakage fluid entrance (2), the leakage fluid entrance (2)
Place is provided with inlet solenoid valve (3), and the bottom of the catch box (1) is provided with leakage fluid outlet (4), and the leakage fluid exports (4) place
Provided with outlet solenoid valve (5), ultrasonic level gage (6) and liquid-level switch sensor (7), institute are additionally provided with the catch box (1)
PLC (8) is stated to sense with inlet solenoid valve (3), outlet solenoid valve (5), ultrasonic level gage (6), liquid-level switch respectively
Device (7) is connected.
2. a kind of test device method of new stern shaft seal gland leakage rate, it is characterised in that：
Comprise the following steps：
Step 1：PLC (8) sends instruction, and Driver Entry magnetic valve (3) is closed, and outlet solenoid valve (5) is opened, catch box
(1) start to discharge original leakage liquid, while PLC (8) starts timing；
Step 2：After the timing time of PLC (8) reaches outlet solenoid valve (5) opening time pre-set, now
Catch box (1) internal leakage liquid has been emptied, and PLC (8) sends instruction, and Driver Entry magnetic valve (3) is opened, and exports electromagnetism
Valve (5) is closed, and catch box (1) starts to collect leakage liquid, and now PLC (8) starts the timing of this measurement period；
Step 3：When the liquid level of catch box (1) internal leakage liquid reaches setting height, liquid-level switch sensor (7) is controlled to PLC
Device (8) output switch amount signal processed, PLC (8) stops timing and sends control instruction, and Driver Entry magnetic valve (3) is closed
Close, outlet solenoid valve (5) is opened, catch box (1) starts discharge opeing, one-shot measurement end cycle；
Step 4：This cycle time of measuring is uploaded to computer (9) and shown by PLC (8), while into next
Measurement period, i.e. repeat step 2,3,4.
3. a kind of test device of new stern shaft seal gland leakage rate according to claim 1, it is characterised in that：It is described
Ultrasonic level gage (6) is arranged at the top of catch box (1), and has 10cm~20cm setting height(from bottom).
4. a kind of test device of new stern shaft seal gland leakage rate according to claim 3, it is characterised in that：It is described
Liquid-level switch sensor (7) is arranged at the top of catch box (1), and the sensing head (7.1) of the liquid-level switch sensor (7) is arranged on
At the preset height of catch box (1).
5. a kind of test device of new stern shaft seal gland leakage rate according to claim 4, it is characterised in that：It is described
Catch box (1) bottom is provided with support (1.1).
6. a kind of test device of new stern shaft seal gland leakage rate according to any one in claim 3~5, its
It is characterised by：The leakage fluid entrance (2) is provided with funnel (2.1).
7. a kind of method of testing of new stern shaft seal gland leakage rate according to claim 2, it is characterised in that：It is described
In step 1~4, the inlet solenoid valve (3) and outlet solenoid valve (5) use interlock protection, i.e., both can not open simultaneously or
Simultaneously close off.
8. a kind of method of testing of new stern shaft seal gland leakage rate according to any one in claim 2 or 7, its
It is characterised by：In the step 3, when the liquid level of catch box (1) the internal leakage liquid reaches setting height, i.e., leakage liquid with
When sensing head (7.1) is contacted, liquid-level switch sensor (7) starts to PLC (8) output switch amount signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265312.9A CN107101691A (en) | 2017-04-21 | 2017-04-21 | A kind of test device and method of new stern shaft seal gland leakage rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265312.9A CN107101691A (en) | 2017-04-21 | 2017-04-21 | A kind of test device and method of new stern shaft seal gland leakage rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107101691A true CN107101691A (en) | 2017-08-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265312.9A Pending CN107101691A (en) | 2017-04-21 | 2017-04-21 | A kind of test device and method of new stern shaft seal gland leakage rate |
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| CN (1) | CN107101691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000861A (en) * | 2018-05-31 | 2018-12-14 | 沪东中华造船(集团)有限公司 | A kind of ship stern sealing pressure oil test method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2406229Y (en) * | 1999-12-28 | 2000-11-15 | 柯青云 | Rain gauge |
| JP2001124886A (en) * | 1999-10-25 | 2001-05-11 | Hitachi Ltd | Leakage monitoring device |
| WO2005108281A1 (en) * | 2004-04-22 | 2005-11-17 | Gilbarco Inc. | Leak container for fuel dispenser |
| CN103122862A (en) * | 2013-01-29 | 2013-05-29 | 武汉船用机械有限责任公司 | Liquid leakage monitoring device |
| CN204303359U (en) * | 2014-11-28 | 2015-04-29 | 中广核工程有限公司 | A kind of nuclear power plant auxiliary feedwater system pneumatic pump water leakage tapping equipment |
-
2017
- 2017-04-21 CN CN201710265312.9A patent/CN107101691A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001124886A (en) * | 1999-10-25 | 2001-05-11 | Hitachi Ltd | Leakage monitoring device |
| CN2406229Y (en) * | 1999-12-28 | 2000-11-15 | 柯青云 | Rain gauge |
| WO2005108281A1 (en) * | 2004-04-22 | 2005-11-17 | Gilbarco Inc. | Leak container for fuel dispenser |
| CN103122862A (en) * | 2013-01-29 | 2013-05-29 | 武汉船用机械有限责任公司 | Liquid leakage monitoring device |
| CN204303359U (en) * | 2014-11-28 | 2015-04-29 | 中广核工程有限公司 | A kind of nuclear power plant auxiliary feedwater system pneumatic pump water leakage tapping equipment |
Non-Patent Citations (1)
| Title |
|---|
| 齐文征: "船舶艉轴后密封泄漏故障分析及处理", 《航海技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000861A (en) * | 2018-05-31 | 2018-12-14 | 沪东中华造船(集团)有限公司 | A kind of ship stern sealing pressure oil test method |
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Application publication date: 20170829 |
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| RJ01 | Rejection of invention patent application after publication |