CN207395984U - A kind of gas engine sealing detection system - Google Patents
A kind of gas engine sealing detection system Download PDFInfo
- Publication number
- CN207395984U CN207395984U CN201720873477.XU CN201720873477U CN207395984U CN 207395984 U CN207395984 U CN 207395984U CN 201720873477 U CN201720873477 U CN 201720873477U CN 207395984 U CN207395984 U CN 207395984U
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- China
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- signal processing
- air inlet
- gas engine
- communication module
- detection system
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- Measuring Fluid Pressure (AREA)
- Testing Of Engines (AREA)
Abstract
The utility model is related to gas engine combustion gas and automatically controlled control field, specially a kind of gas engine sealing detection system, it can quickly, accurately investigate valve and its seat seal failure, it is applied widely, interpretation of result is convenient, it includes air inlet pipe, it is characterized in that, blind flange is installed on the air inlet of the air inlet pipe, TMAP sensors are installed on the blind flange, the TMAP sensors connect signal processing by signal transmission harness and communication module, the signal processing are connected PC machine with communication module by communication transmission line.
Description
Technical field
The utility model is related to gas engine combustion gas and automatically controlled control field, are specially a kind of gas engine sealing detection
System.
Background technology
At present, domestic electricity generation is in developing stage with gas engine technology, due to valve and its seat ring skill
The influence of the factors such as the influence of art level and combustion gas makings, so as to cause valve and its seat ring generate abrasion and eccentric wear etc. is existing
As, cause gas engine penalty, in tempering and exhaust pipe the failures such as after-burning generation so that gas engine disorderly closedown and production
The harm of raw bigger.
The valve and valve retainer of engine are the important components for forming combustion chamber, and valve retainer cooperation valve ensures burning
The leakproofness of room.Gas engine burns, and indoor mixed gas ignition temperature is high, and the working environment residing for valve and valve retainer is disliked
Bad, high temperature causes the material hardness of valve and its seat ring to decline and soften, and valve and its seat ring is made easily to generate compression or shearing
Deformation, accelerates its abrasion.
The domestic leak check carried out at present using cylinder pressure gage in engine combustion room, operation principle are：Root
According to Hooke's law, for elastomer in the range of elastic limit, active force is directly proportional to deformation.When the compressed gas of cylinder enters instrument
Table opens intake valve, drives transmission mechanism and pointer.At the end of stroke, intake valve is automatically closed, and pointer rests on original position
It puts, pointer can only point out the maximum of boosting in supercharging, and after removing pressure, pointer can just return to zero-bit.
With gas engine reinforcing degree and the continuous improvement of Site Service requirement, the leakproofness of valve and its seat ring is being checked
When, there are following shortcomings for cylinder pressure gage.
1. head gasket of the testing result between by Piston volume tube and cylinder jacket between leakproofness quality and adjacent cylinder is
The no factors such as intact are affected.
2. testing result error is big, as a result low precision.
3. the pressure probe shape and length of push-in type cylinder pressure gage are by the shadow of different types of spark plug mounting means
It rings, and is not suitable for the high gas engine of reinforcing degree.
The content of the invention
In view of the above-mentioned problems, the utility model provides a kind of gas engine sealing detection system, can quickly, essence
Really investigation valve and its seat seal failure, applied widely, interpretation of result is convenient.
Its technical solution is such：A kind of gas engine sealing detection system, including air inlet pipe, feature exists
In, blind flange on the air inlet of the air inlet pipe is installed, TMAP sensors are installed on the blind flange, the TMAP sensings
Device connects signal processing and communication module by signal transmission harness, and the signal processing passes through communication transmission line with communication module
Connect PC machine.
It is further characterized by, and the signal processing includes A/D converter, microcontroller, communication chip with communication module
And voltage stabilizing chip, the signal processing are connected power module with communication module；
The power module is DC 12V power supplys or unit storage battery.
After the system of the utility model, the sealing system pressure change of perception is converted to telecommunications by TMAP sensors
Number, signal processing and communication module are passed to by signal transmission harness, sent after data processing by communication transmission line
To PC machine, by test process by when m- pressure curve in the form of show, setting TMAP sensors and having a wide range of application, measurement is fast
It is fast accurate.
Description of the drawings
Fig. 1 is TMAP sensor fixing structure schematic diagrames；
Fig. 2 is the utility model internal control schematic diagram；
Fig. 3 is signal processing and schematic diagram inside communication module.
Specific embodiment
See Fig. 1, Fig. 2, shown in Fig. 3, a kind of gas engine sealing detection system, including air inlet pipe 1, air inlet pipe 1
Air inlet on blind flange 2 is installed, TMAP sensors 3 are installed, TMAP sensors 3 pass through signal transmssion line on blind flange 2
Beam 4 connects signal processing and communication module 5, and signal processing is connected PC machine 7, PC machine 7 with communication module 5 by communication transmission line 6
Data processing software 8 is inside installed.
Signal processing includes A/D converter 9, microcontroller 10, communication chip 11 and voltage stabilizing chip 12, letter with communication module 5
Number processing with communication module 5 is connected power module 13；Power module is DC 12V power supplys or unit storage battery.14 be cylinder in figure
Lid, 15 be valve.
Combustion gas and ignition system power supply are first turned off, is ensureing that the pad sealing performance between air inlet pipe and cylinder head is good
Under the premise of, the air throttle being connected with air inlet pipe is removed, and with special blind plate by air inlet excellent sealing so that air inlet pipe is gentle
Cylinder cap regards a sealing system as.Secondly the parts such as case, valve rocker, rocker arm bracket and the push rod in cylinder head are removed,
Valve is made to be in closed state.Then special mounting hole TMAP sensors being mounted in air inlet pipe（It is fired for electronic control type
Mechanism of qi）Or the special mounting hole on air inlet mouth of pipe blind plate（For non-electronic control type gas engine）.According to above-mentioned schematic diagram,
Each electric component is electrically connected.
It opens power module to start to power to signal processing and communication module, TMAP sensors are started to work, and will measurement
As a result signal processing and communication module are transferred to by signal transmission harness.Data processing software is run in PC machine, passes through PC
Machine com port is set, and signal processing and the communication work of communication module and PC machine is established, at this time from the operation window of data processing software
Mouth is it is observed that a pressure versus time change curve.Before measurement is not started, which is straight line, i.e. pressure magnitude
Size is local atmospheric pressure.
Starting button is pressed, engine is made to run the rear stoppings of about 15s or so in a start up state.In air inlet pipe
The sealing system pressure change of perception is converted to electric signal by TMAP sensors, by signal transmssion line pass to signal processing with
Communication circuit module is sent to data processing software in PC machine, at software after data processing by communication transmission line
Reason shows test process in graph form, is analyzed convenient for test process.
Each parts function of the system is as follows.
1. TMAP sensors are responsible for measuring the absolute pressure variation in sealing system, and by physics
Signal is converted to the voltage signal of standard.
2. the voltage signal of standard is gone out to be defeated by signal processing and communication module by signal transmission harness.
3. power module provides DC 12V voltages for signal processing and communication module, live unit storage battery can also be used to supply
Electricity.
4. signal processing is with communication module by electronics such as A/D converter, 12 microcontrollers, communication chip and voltage stabilizing chips
Element forms, and is responsible for signal processing and transmission work.
5. signal processing and communication module are established signal communication by communications line with PC machine.
6. PC machine is responsible for the foundation of signal communication and provides operation platform for data processing software.
7. data processing software is responsible for normal data input, the reception of gathered data and processing in real time and display, for
Family is analyzed and compared by test curve.
Claims (3)
- A kind of 1. gas engine sealing detection system, including air inlet pipe, which is characterized in that the air inlet of the air inlet pipe On blind flange is installed, TMAP sensors are installed, the TMAP sensors are connected by signal transmission harness on the blind flange Signal processing and communication module are connect, the signal processing is connected PC machine with communication module by communication transmission line.
- A kind of 2. gas engine sealing detection system according to claim 1, which is characterized in that the signal processing Include A/D converter, microcontroller, communication chip and voltage stabilizing chip with communication module, the signal processing is connected with communication module Power module.
- A kind of 3. gas engine sealing detection system according to claim 2, which is characterized in that the power module For DC 12V power supplys or unit storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720873477.XU CN207395984U (en) | 2017-07-19 | 2017-07-19 | A kind of gas engine sealing detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720873477.XU CN207395984U (en) | 2017-07-19 | 2017-07-19 | A kind of gas engine sealing detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207395984U true CN207395984U (en) | 2018-05-22 |
Family
ID=62418065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720873477.XU Active CN207395984U (en) | 2017-07-19 | 2017-07-19 | A kind of gas engine sealing detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207395984U (en) |
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2017
- 2017-07-19 CN CN201720873477.XU patent/CN207395984U/en active Active
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