CN208968829U - A kind of MTU956 diesel engine main valve Performance Test System - Google Patents
A kind of MTU956 diesel engine main valve Performance Test System Download PDFInfo
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- CN208968829U CN208968829U CN201821920354.8U CN201821920354U CN208968829U CN 208968829 U CN208968829 U CN 208968829U CN 201821920354 U CN201821920354 U CN 201821920354U CN 208968829 U CN208968829 U CN 208968829U
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Abstract
A kind of MTU956 diesel engine main valve Performance Test System, including performing leak test system and opening time test macro, performing leak test system includes providing the gas source quick coupling of compressed air for entire performing leak test system, compressed air is divided into the two-position three way magnetic valve of two-way, and the pressure pipeline one and pressure pipeline two being connected respectively with the first gas port Z and flange P of main valve, it further include the pressure gauge M3 being connected to the blind plate of main valve, pressure reducing valve and pressure gauge M1 is arranged in sequence on pressure pipeline one from two-position three way magnetic valve to main valve, pressure pipeline two is equipped with pressure gauge M2；Opening time test macro include for and meanwhile be two-position three way magnetic valve and main valve positional relationship sensor S power supply 24V DC power supply, and the oscillograph being connect simultaneously with two-position three way magnetic valve and main valve.The utility model measuring accuracy is high, it is not necessary that main valve is returned to external producer, reduces production cost, saves the repair time.
Description
Technical field
The utility model relates to diesel engine main valve performance test fields, and in particular to a kind of MTU956 diesel engine main valve performance
Test macro.
Background technique
Nuclear power plant MTU956 diesel oil owner's trigger valve uses piston type pneumatic pilot valve, the compact complexity of the valve mechanism, valve
Door is internal to be made of piston, spring, all kinds of sealing elements and valve opening position sensor, because rubber parts is limited using the phase in longevity,
Maintenance department, power plant needs periodically to carry out the replacement of main valve sealing element.And nuclear power plant requires Emergency diesel in bus power loss signal
Starting is completed in 10S after appearance, therefore very high to the performance requirement of main trigger valve, will lead to main valve evidence as maintenance process is improper
Dynamic or slow movement influences diesel engine starting success rate and starting time, wants to guarantee that the performance after main valve maintenance meets use
It asks, needs to test the performance of main valve, including performing leak test and opening time test, but power plant is not able to carry out this
Tool is suppressed in work, and the maintenance of the valve at present relies primarily on the German factory repair test of return, influences nuclear power plant's work effect
Rate, maintenance cost are high.
Utility model content
The purpose of the utility model is to provide a kind of MTU956 diesel engine main valve Performance Test Systems, to solve the prior art
Main valve testing time too long technical problem；And solve the problems, such as that prior art production cost is excessively high.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of MTU956 diesel engine main valve Performance Test System, which is characterized in that including performing leak test system and unlatching
Time test system, the performing leak test system include that the gas source that provides compressed air for entire performing leak test system is quick
Compressed air is divided into the two-position three way magnetic valve of two-way by connector, and is connected respectively with the first gas port Z and flange P of main valve
Pressure pipeline one and pressure pipeline two, further include the pressure gauge M3 being connected to the blind plate of main valve, on the pressure pipeline one from
Pressure reducing valve and pressure gauge M1 is arranged in sequence to main valve in two-position three way magnetic valve, and the pressure pipeline two is equipped with pressure gauge M2；
The opening time test macro include for and meanwhile be two-position three way magnetic valve and main valve positional relationship sensor S
The 24V DC power supply of power supply, and the oscillograph being connect simultaneously with two-position three way magnetic valve and main valve.
It is further preferred that the pressure of the compressed air of the gas source quick coupling access is 38~42bar.
Further, the pressure of the compressed air of the gas source quick coupling access is 40bar.
Further, compressed air is depressurized to 6-7bar by the pressure reducing valve, after being passed through first gas port Z, to drive master
The mechanical pilot mechanism of valve.
Further, the main valve is piston type pneumatic pilot valve.
In addition, the connection electric wire between the 24V DC power supply and two-position three way magnetic valve is equipped with and is spaced apart.
It is further preferred that the main valve includes mandril, piston, valve body, spring, limit sleeve, upper slide valve, lower slide valve, guiding
Bushing, end cap, slide valve lever, valve position switch, sealing ring, exhaust valve and handle.
Implement the utility model can achieve it is following the utility model has the advantages that
The utility model can realize that main valve seal tightness test, function test, opening time test are triple under identical platform
Function purchases after comprehensive verifying maintenance or newly the quality for main trigger valve spare part of showing up, it is ensured that the starting of diesel-engine equipment is reliable
Property；
The utility model measuring accuracy is high, ease in use, save the cost, and the platform is using high-precision oscillograph to main starting
Valve opening time is tested, and measuring accuracy is high, it is not necessary that main valve is returned to external producer, production cost is reduced, when saving maintenance
Between.
The utility model scalability is strong.The platform is after can be used for overhauling in addition to the test of main trigger valve, it may also be used for main
The analysis of the reason of trigger valve defect and comparison, can realize by adjusting each connection size and air pressure and test other similar valves
Card, scalability is strong, and use scope is wide.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of MTU956 diesel engine main valve Performance Test System of the utility model；
Fig. 2 be the utility model relates to main valve structural schematic diagram.
The drawing reference numeral of specific embodiment illustrates:
1- gas source quick coupling；2- two-position three way magnetic valve；3- elder generation gas port Z；4- flange P；5- pressure pipeline one；6- pressure
Hydraulic piping two；7- main valve；71- mandril；72- piston；73- valve body；74- spring；75- limit sleeve；The upper slide valve of 76-；77- glides
Valve；78- pilot bushing；79- end cap；80- slide valve lever；81- valve position switch；82- sealing ring；83- exhaust valve；84- handle；8- subtracts
Pressure valve；9- pressure gauge M1；10- pressure gauge M2；11- blind plate；12- pressure gauge M3；13- positional relationship sensor S；14- oscillograph；
15-24V DC power supply；16- is spaced apart.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.Obviously, the described embodiments are only a part of the embodiments of the utility model,
Instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creation
Property labour under the premise of every other embodiment obtained, fall within the protection scope of the utility model.
A kind of MTU956 diesel engine main valve Performance Test System, as shown in Figure 1, when including performing leak test system and opening
Between test macro, performing leak test system includes providing the gas source quick coupling 1 of compressed air for entire performing leak test system,
Compressed air is divided into the two-position three way magnetic valve 2 of two-way, and be connected respectively with the first gas port Z3 and flange P4 of main valve 7
Pressure pipeline 1 and pressure pipeline 26, further include the pressure gauge M312 being connected to the blind plate 11 of main valve 7, on pressure pipeline 1
Pressure reducing valve 8 and pressure gauge M19 are arranged in sequence from two-position three way magnetic valve 2 to main valve 7, pressure pipeline 26 is equipped with pressure gauge
Compressed air is depressurized to 6-7bar by M210, pressure reducing valve 8, after being passed through first gas port Z3, to drive mechanical guide's machine of main valve 7
Structure.
Opening time test macro include for and meanwhile be two-position three way magnetic valve 2 and main valve 7 positional relationship sensor S13
The 24V DC power supply 15 of power supply, and the oscillograph 14 being connect simultaneously with two-position three way magnetic valve 2 and main valve 7.The fast quick access of gas source
The pressure of the compressed air of first 1 access is 38~42bar, and the pressure for the compressed air that gas source quick coupling 1 accesses is preferably
Connection electric wire between 40bar, 24V DC power supply 15 and two-position three way magnetic valve 2, which is equipped with, is spaced apart 16.
Main valve 7 is piston type pneumatic pilot valve, as shown in Fig. 2, main valve 7 includes the mandril for valve transmission to be manually operated
71, for bearing the piston 72 of Pneumatic Transmission, valve body 73, restoring the spring 74 of valve seal power, for limiting work for providing
Fill in limit sleeve 75, the upper slide valve 76 for guide's valve action, the lower slide valve for being switched on/off compressed air of extreme position
77, for guiding the pilot bushing 78 of downslide valve piston direction of action, for valve seal and limitation downslide valve piston movement pole
The end cap 79 of limit, the slide valve lever 80 for guiding downslide valve piston direction of action, the valve whether fully opened for feeding back valve
Bit switch 81, for the sealing ring 82 of sealing, the exhaust valve 83 for residual compression air to be discharged and for valve to be manually operated
Handle 84.
A kind of MTU956 diesel engine main valve Performance Test System, which comprises the following steps:
S1, the leakproofness for judging main valve 7: two-position three way magnetic valve 2 is closed, pressure gauge M19 and pressure gauge M312 show at this time
Number is 0bar；Pressure gauge M210 registration maintains 40bar, and pressure maintaining 5min simultaneously carries out leakage detection to main valve 7 using leakage detection liquid；Such as pressure
Table M210 pressure is stable and pressure gauge M19 and pressure gauge M312 are constant, then judges that 7 leakproofness of main valve is good；
S2, the test of 7 opening time of main valve: it opens power supply and is spaced apart 16, adjust pressure reducing valve 8, it is ensured that pressure gauge M19 pressure gauge is aobvious
When showing that registration is identical on 5bar, pressure gauge M210 and pressure gauge M312, oscillograph 14 calculates two-position three way magnetic valve 2 and obtains electric and position
The time interval for setting relationship sensors S13 triggering valve opening signal is within 0.5S；
The sealing propertytest of S3, guide's atmospheric pressure deficiency main valve 7: first adjustment pressure reducing valve 8 to pressure gauge M19 is shown
0.5bar, i.e., guide's atmospheric pressure is insufficient at this time, checks that pressure gauge M312 pressure recovery is 0, pressure gauge M210 pressure is still
40bar, it is ensured that main valve 7 is not opened at this time；
S4,7 switch performance of manual test main valve, the handle 84 of Manual press main valve 7, observation pressure gauge M19 registration are kept
It is 0, pressure gauge M210 and pressure gauge M312 measure pressure as 40bar, and valve position sensor S should trigger valve opening signal；
S5, reinspection: sequentially repeating aforesaid operations step 2-3 times, and repeated authentication result is qualified then to illustrate 7 performance of main valve just
Often.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (7)
1. a kind of MTU956 diesel engine main valve Performance Test System, which is characterized in that when including performing leak test system and opening
Between test macro, the performing leak test system includes the fast quick access of gas source for providing compressed air for entire performing leak test system
Head (1), compressed air is divided into the two-position three way magnetic valve (2) of two-way, and respectively with the first gas port Z (3) of main valve (7) and
Flange P (4) connected pressure pipeline one (5) and pressure pipeline two (6), further includes the pressure being connected to the blind plate (11) of main valve (7)
Power table M3 (12), be arranged in sequence from two-position three way magnetic valve (2) to main valve (7) on the pressure pipeline one (5) pressure reducing valve (8) and
Pressure gauge M1 (9), the pressure pipeline two (6) are equipped with pressure gauge M2 (10)；
The opening time test macro includes being while being the positional relationship sensing of two-position three way magnetic valve (2) and main valve (7)
The 24V DC power supply (15) of device S (13) power supply, and the oscillograph being connect simultaneously with two-position three way magnetic valve (2) and main valve (7)
(14)。
2. a kind of MTU956 diesel engine main valve Performance Test System as described in claim 1, it is characterised in that: the gas source is fast
The pressure of the compressed air of quick coupling (1) access is 38~42bar.
3. a kind of MTU956 diesel engine main valve Performance Test System as described in claim 1, it is characterised in that: the gas source is fast
The pressure of the compressed air of quick coupling (1) access is 40bar.
4. a kind of MTU956 diesel engine main valve Performance Test System as described in claim 1, it is characterised in that: the pressure reducing valve
(8) compressed air is depressurized to 6-7bar, after being passed through first gas port Z (3), to drive the mechanical pilot mechanism of main valve (7).
5. a kind of MTU956 diesel engine main valve Performance Test System as described in claim 1, it is characterised in that: the main valve
It (7) is piston type pneumatic pilot valve.
6. a kind of MTU956 diesel engine main valve Performance Test System as described in claim 1, it is characterised in that: the 24V is straight
Connection electric wire between galvanic electricity source (15) and two-position three way magnetic valve (2), which is equipped with, is spaced apart (16).
7. a kind of MTU956 diesel engine main valve Performance Test System as described in claim 1, it is characterised in that: the main valve
(7) include mandril (71), piston (72), valve body (73), spring (74), limit sleeve (75), upper slide valve (76), lower slide valve (77),
Pilot bushing (78), end cap (79), slide valve lever (80), valve position switch (81), sealing ring (82), exhaust valve (83) and handle
(84)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920354.8U CN208968829U (en) | 2018-11-21 | 2018-11-21 | A kind of MTU956 diesel engine main valve Performance Test System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920354.8U CN208968829U (en) | 2018-11-21 | 2018-11-21 | A kind of MTU956 diesel engine main valve Performance Test System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208968829U true CN208968829U (en) | 2019-06-11 |
Family
ID=66765643
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821920354.8U Active CN208968829U (en) | 2018-11-21 | 2018-11-21 | A kind of MTU956 diesel engine main valve Performance Test System |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374305A (en) * | 2018-11-21 | 2019-02-22 | 阳江核电有限公司 | A kind of MTU956 diesel engine main valve Performance Test System and its test method |
-
2018
- 2018-11-21 CN CN201821920354.8U patent/CN208968829U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374305A (en) * | 2018-11-21 | 2019-02-22 | 阳江核电有限公司 | A kind of MTU956 diesel engine main valve Performance Test System and its test method |
| CN109374305B (en) * | 2018-11-21 | 2024-03-08 | 阳江核电有限公司 | MTU956 diesel engine main valve performance test system and test method thereof |
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