CN109116115A - The detection method of engine electromagnetic valve - Google Patents
The detection method of engine electromagnetic valve Download PDFInfo
- Publication number
- CN109116115A CN109116115A CN201811336319.6A CN201811336319A CN109116115A CN 109116115 A CN109116115 A CN 109116115A CN 201811336319 A CN201811336319 A CN 201811336319A CN 109116115 A CN109116115 A CN 109116115A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic valve
- tightness
- detection method
- valve
- engine
- Prior art date
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
- G01M3/14—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/144—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for valves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a kind of detection methods of engine electromagnetic valve.Detection method includes the following steps for the engine electromagnetic valve: step 1 measures the resistance value of electromagnetic valve coil；Step 2 measures the inside air-tightness of solenoid valve；Step 3, the external air-tightness that measurement solenoid valves are opened；Step 4, the air-tightness that measurement solenoid valve power-off is closed.The detection method of the engine electromagnetic valve to the failure cause and function of solenoid valve normally whether carry out on-site test, complete, comprehensive judgement can be made, detection efficiency is high.
Description
Technical field
The present invention relates to engine arts, especially with regard to a kind of detection method of engine electromagnetic valve.
Background technique
Switch of the solenoid valve as gas circuit on natural gas engine, effect are by opening and closing, to control gas cylinder
To the supply of the gas source of engine.Its working principle is that: when electromagnetic valve coil is powered, electromagnetic coil generates electromagnetic force closure member
Lift from electromagnetism valve base, valve is opened；When power-off, electromagnetic force disappears, and spring force is pressed in closure member on valve seat, and valve closes
It closes.In simple terms, it is exactly that electromagnetic valve coil energization excitation generates magnetic force, valve core movement is driven to switch or close.
There are many reason of solenoid valve breaks down, and breakage, failure of sub- part etc. all can cause solenoid valve just normally opened
It opens or closes.Solenoid valve failure will lead to engine and normally can not supply or stop the supple of gas or steam.For the normal work for guaranteeing solenoid valve, need
It is detected.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of detection method of the engine electromagnetic valve of simple and reasonable steps, the engines
The detection method of solenoid valve by multimeter, ventilation pressure maintaining and expanding foam solution to the failure cause and function of solenoid valve normally whether into
Row on-site test, can make complete, comprehensive judgement, and detection efficiency is high.
To achieve the above object, the present invention provides a kind of detection methods of engine electromagnetic valve, comprising the following steps: step
Rapid one, measure the resistance value of electromagnetic valve coil；Step 2 measures the inside air-tightness of solenoid valve；Step 3, measurement solenoid valve are logical
The external air-tightness of electric-opening；Step 4, the air-tightness that measurement solenoid valve power-off is closed.
In a preferred embodiment, step 1 tests its resistance using the resistance of multimeter measurement electromagnetic valve coil
Whether value is in normal range (NR).
In a preferred embodiment, before the inside air-tightness that solenoid valve is measured in step 2, first by electromagnetic valve outlet
Pipeline and electromagnetic valve entrance pipeline are connect with the outlet of solenoid valve and entrance respectively, and in the electromagnetic valve outlet pipeline and electromagnetism
It is respectively corresponded on valve inlet pipeline and lays delivery gauge and inlet pressure gauge.
In a preferred embodiment, it includes: stifled for the specific steps of the inside air-tightness of solenoid valve being measured in step 2
The end of solenoid export pipeline is passed through 2MPa nitrogen at the beginning of electromagnetic valve entrance pipeline, shows number to inlet pressure gauge
After value is stablized, the display numerical value of delivery gauge is observed.
In a preferred embodiment, the specific steps for the external air-tightness that solenoid valves are opened are measured in step 3
Include: the end for blocking electromagnetic valve outlet pipeline, 2MPa nitrogen is passed through at the beginning of electromagnetic valve entrance pipeline, to inlet pressure gauge
It after showing numerical stability, is powered to electromagnetic valve coil, after delivery gauge shows numerical stability, is uniformly smeared with by expanding foam solution
At each position of electromagnetic valve body, pressure stabilizing 3min has seen whether bubble leakage.
In a preferred embodiment, the specific steps packet for the air-tightness that solenoid valve power-off is closed is measured in step 4
It includes: electromagnetic valve coil is powered off, open electromagnetic valve outlet pipeline, show that numerical stability after 0MPa, blocks after delivery gauge
Electromagnetic valve outlet pipeline is passed through 2MPa nitrogen at electromagnetic valve entrance pipeline beginning, after inlet pressure gauge shows numerical stability, sees
Examine the display numerical value of delivery gauge.
Compared with prior art, the detection method of engine electromagnetic valve according to the present invention has the following beneficial effects: this
The detection method of engine electromagnetic valve is normal to the failure cause and function of solenoid valve by multimeter, ventilation pressure maintaining and expanding foam solution
Whether carry out on-site test, complete, comprehensive judgement can be made, detection efficiency is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the detection method of engine electromagnetic valve according to an embodiment of the present invention.
Fig. 2 is the flow chart of the detection method of engine electromagnetic valve according to an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Fig. 2, detection method includes the following steps for engine electromagnetic valve according to the preferred embodiment of the present invention:
Firstly, the resistance value of measurement electromagnetic valve coil；
Using the resistance of multimeter measurement electromagnetic valve coil 2, whether test resistance value is in normal range (NR).
Secondly, the inside air-tightness of measurement solenoid valve；
As shown in Figure 1, first by electromagnetic valve outlet pipeline 3 and electromagnetic valve entrance pipeline 5 respectively with the outlet of solenoid valve 1 and enter
Mouth connection, and respectively corresponded on electromagnetic valve outlet pipeline 3 and electromagnetic valve entrance pipeline 5 and lay delivery gauge 4 and entrance pressure
Power table 6.Then the end for blocking electromagnetic valve outlet pipeline 3 is passed through about 2MPa nitrogen at the beginning of electromagnetic valve entrance pipeline 5, to
After inlet pressure gauge 6 shows numerical stability, delivery gauge 4 is observed, illustrates electromagnetism if pressure value > 0Mpa and≤2Mpa
Airtight sexual abnormality inside valve, pressure is always that 0Mpa then illustrates that inner sealing is good.
Again, the external air-tightness that measurement solenoid valves are opened；
The end for blocking electromagnetic valve outlet pipeline 3 is passed through about 2MPa nitrogen at the beginning of electromagnetic valve entrance pipeline 5, wait enter
It after mouth pressure gauge 6 shows numerical stability, is powered to electromagnetic valve coil, after delivery gauge 4 shows numerical stability, use will foam
Liquid is uniformly applied to each position of electromagnetic valve body, and pressure stabilizing 3min has seen whether bubble leakage；There is bubble then to show solenoid valve gas
Close sexual abnormality, bubble-free solenoid valve function are normal.
Finally, the air-tightness that measurement solenoid valve power-off is closed；
Electromagnetic valve coil is powered off, electromagnetic valve outlet pipeline 3 is opened, shows numerical stability in 0MPa to delivery gauge 4
Afterwards, electromagnetic valve outlet pipeline 3 is blocked, is passed through about 2MPa nitrogen at 5 beginning of electromagnetic valve entrance pipeline, is shown to inlet pressure gauge 6
After numerical stability, delivery gauge 4 is observed, illustrates that solenoid valve closes abnormal, pressure if pressure value > 0Mpa and≤2Mpa
It is always that 0Mpa then illustrates that solenoid valve is closed well.
The detection method of the engine electromagnetic valve, which can be applied, is examining electromagnetic valve quality, judges solenoid valve failure reason
On, a set of more complete method is provided for the production, use, diagnosis of solenoid valve.
To sum up, event of the detection method of the engine electromagnetic valve by multimeter, ventilation pressure maintaining and expanding foam solution to solenoid valve
On-site test is carried out whether hindering reason and function normally, complete, comprehensive judgement can be made, detection efficiency is high.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (6)
1. a kind of detection method of engine electromagnetic valve, which comprises the following steps:
Step 1 measures the resistance value of electromagnetic valve coil；
Step 2 measures the inside air-tightness of solenoid valve；
Step 3, the external air-tightness that measurement solenoid valves are opened；
Step 4, the air-tightness that measurement solenoid valve power-off is closed.
2. the detection method of engine electromagnetic valve as described in claim 1, which is characterized in that the step 1 uses multimeter
Whether the resistance for measuring electromagnetic valve coil, test its resistance value in normal range (NR).
3. the detection method of engine electromagnetic valve as claimed in claim 2, which is characterized in that measure electromagnetism in the step 2
Before the inside air-tightness of valve, first electromagnetic valve outlet pipeline and electromagnetic valve entrance pipeline are connected with the outlet of solenoid valve and entrance respectively
It connects, and is respectively corresponded on the electromagnetic valve outlet pipeline and electromagnetic valve entrance pipeline and lay delivery gauge and inlet pressure
Table.
4. the detection method of engine electromagnetic valve as claimed in claim 3, which is characterized in that measure electromagnetism in the step 2
The specific steps of the inside air-tightness of valve include: to block the end of electromagnetic valve outlet pipeline, at the beginning of electromagnetic valve entrance pipeline
It is passed through 2MPa nitrogen, after inlet pressure gauge shows numerical stability, observes the display numerical value of delivery gauge.
5. the detection method of engine electromagnetic valve as claimed in claim 4, which is characterized in that measure electromagnetism in the step 3
The specific steps for the external air-tightness that valve energization is opened include: to block the end of electromagnetic valve outlet pipeline, in electromagnetic valve entrance pipe
The beginning on road is passed through 2MPa nitrogen, after inlet pressure gauge shows numerical stability, is powered to electromagnetic valve coil, to delivery gauge
After showing numerical stability, with expanding foam solution to be uniformly applied to each position of electromagnetic valve body, pressure stabilizing 3min has seen whether that bubble is let out
Leakage.
6. the detection method of engine electromagnetic valve as claimed in claim 5, which is characterized in that measure electromagnetism in the step 4
The specific steps for the air-tightness that valve power-off is closed include: to power off to electromagnetic valve coil, open electromagnetic valve outlet pipeline, wait export pressure
Power table shows that numerical stability after 0MPa, blocks electromagnetic valve outlet pipeline, is passed through 2MPa nitrogen at electromagnetic valve entrance pipeline beginning,
After inlet pressure gauge shows numerical stability, the display numerical value of delivery gauge is observed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336319.6A CN109116115A (en) | 2018-11-09 | 2018-11-09 | The detection method of engine electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336319.6A CN109116115A (en) | 2018-11-09 | 2018-11-09 | The detection method of engine electromagnetic valve |
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| Publication Number | Publication Date |
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| CN109116115A true CN109116115A (en) | 2019-01-01 |
Family
ID=64853920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201811336319.6A Pending CN109116115A (en) | 2018-11-09 | 2018-11-09 | The detection method of engine electromagnetic valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632424A (en) * | 2019-09-27 | 2019-12-31 | 天长市曙光电子有限公司 | Portable detection equipment for solenoid valve and solenoid valve coil |
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Application publication date: 20190101 |