CB/T 3935-2001 Technical requirements for repair and commissioning of hydraulic systems for engineering vessels
Some standard content:
ICS 47.020.20
No.: 9888-2002
Ship Industry Standard of the People's Republic of China
CB/T 3935—2001
Replaces 3/3935-1995
Technical requirements for testing hydraulisystem of repairing working Issued on January 15, 2001
Issued by the Commission of Science, Technology and Industry for National Defense
Implemented on February 1, 2002
LB/T3935-2001
This standard is a revision of the 935-1999 Technical Requirements for the Debugging of Image Correction Cards in the Industry System. According to the notice issued by the Standardization Department of the State Administration of Quality Supervision, Inspection and Quarantine concerning the professional standards and relevant national standards that should be converted into industry standards after adjustment, and the notice issued by the General Administration of Quality Supervision, Inspection and Quarantine concerning the professional standards and relevant national standards that should be adjusted into industry standards, this standard is directly derived from 21R32302 in February 1999 and is consistent with 1B/T3936-2 0011 The requirements for the repair report of the pressure element are as follows. This standard is in the original standard, and the additional requirements are as follows: the chain bucket excavation mixed bay pressure system repair test, the blowing mixed wave pressure system is different from the four diagrams.
This standard is implemented from the beginning of 2/1915-1999 Technical Standard by the National Standardization Technical Committee. This standard is the original standard of the ship repair technology code 1. The drafting unit of this standard: China Shipbuilding Industry Comprehensive Technical and Economic Research, the main participants of this standard: Period Auction, Zuo Xibo, this standard was first issued in April 1990, and was adjusted to the industry standard in June 1999. 1 Scope
CB/T 3935-2001
Technical requirements for repair and commissioning of hydraulic systems of engineering ships
This standard specifies the technical requirements for commissioning of hydraulic systems of engineering ships. This standard is applicable to the repair and commissioning of hydraulic systems of engineering ships (hereinafter referred to as systems, etc.). Preparation work before repair and commissioning
2.1 System pressure regulating valves 1. Adjust the flow rate before emergency load test, and start trial use of automatic load flow regulating valves.
2.2 System 2.3 Check the overall performance of all control valves before debugging: 2.4 Check the system's power, flow, temperature and other instruments for proper function and function. 2.5 Check the installation and efficiency of all components, steel pipes, hardware joints, and components. 2.6 Confirm that the hydraulic oil quality, oil thread, oil temperature, viscosity, etc. meet the operating requirements. 2.7 Change the system's air pressure during oil filling to ensure that there is no harmful air in the pressure-releasing components and accessories. 2.0 Check the hydraulic fluid! The system must be filled with or fully oiled before starting. 2.0 The hydraulic pump should be started under the technical state: Confirm that the oil circuit is operating normally. 2.10
Check the hydraulic system and check the low pressure of each execution oil circuit: Confirm that the oil circuit is boosted and the reversing is normal. Before debugging, the system should be operated for a short time and intermittently under unloading dynamic low pressure. If necessary, measures should be taken to ensure that the system temperature is consistent with the temperature in winter. In winter, the dynamic oil temperature should be lower than 15. Principle of commissioning of hydraulic system of cutter suction dredger
3.1 Hydraulic drive pressure system
The principle of hydraulic drive pressure system is shown in Table 1, and the commissioning of hydraulic drive pressure system is shown in Table 1: Table 1 Commissioning conditions of hydraulic system of cutter suction dredger, main conditions: one speed, forward rotation, reverse rotation, miscellaneous conversion
Note: three. The agricultural display adjustment method is used to operate the dynamic gear line down, and the following requirements can be met: 3.1.33 All hydraulic pumps are started and operated under load, and the oil circuit is correct: fo
The operating conditions listed in Table 1 are as shown in the load diagram. During the debugging, the following conditions and functions of the components of the case must be checked: the original operating position must be recorded in the system, and the three force springs of the control valve must be adjusted, and adjusted in the mud control load test:
refer to the original operating position, and the knife pedal must be adjusted for safety violations: the small oil supply area should be turned to the normal area and the return line should be stopped to reach the normal direction. The A, B and C regulations are as follows:
During normal operation, the production start-up avoidance line diagram listed in Table 1 shall be followed, and the writer shall lead the transfer. 3.2 The virtual excitation system
The original seat of the positioning and lifting hydraulic system is more than 2.
The quick dirty magic benefit system is in accordance with Table 2
Table 2 Positioning pile hydraulic system commissioning working conditions
Lower the depth control device
Qualitative data
Manual opening load 2.GA or SE
Lack of work to close the zero position positioning pile in the lifting suspension agent medical
CB/T3935—2001
Cheng Dangerous Home
Low stop side
Use 2 Positioning pile hydraulic system principle
3.2.3 Positioning hydraulic system commissioning operation should meet the following requirements:! The first-class hydraulic gauge is used to start the operation, and the supply impulse circuit is normal: Technical table? The operating conditions listed are adjusted, and each condition is verified; h
six force frames
review the original working position records, and adjust the pressure units of the electronically controlled load full-flow valve in the system: control valve, sinking type valve, etc.; in the control test, it is determined: the lifting is correct, the speed is stable, the adjustment performance is good, the hydraulic cylinder and the pressure cylinder have good impact, the hydraulic cylinder, column pull and guide bed cover have great friction or abrasion: the left and right steel needles are tested 1~2 times respectively during lifting, 1mi, the steel wall drops without a period of time, and the brake can be safely braked:
) The lowering pin action is safe and stable: the left and right have been tested separately, and the system has no destructive impact when slightly exposed, and the connecting system does not exceed the load.
3.3 Transverse hydraulic system
3.3.1 The hydraulic system of the transverse winch is shown in Figure 3.3
CB/T39352001
3.3.2 The hydraulic system of the horizontal winch is as shown in Table 3. Table 3 Transverse winch hydraulic system debugging conditions
Left winch
Transverse winch hydraulic system principle
CB/T 3935—2001
3.3.3 The test operation of the winch system should meet the following requirements: The slow-moving effect card pool and the system debugging should be carried out in the dredging test plan: s
According to the original parts position, the electrical flow in the system is read and measured, and the pressure adjustment and adjustment of the valves are detailed. The mud test starts: the hydraulic pressure is assumed to be started, and the oil supply is normal: According to the working diagram in Table 5, the following conditions are adjusted. |tt||During the left transverse winch operation, the whole winch is retracted at the same time, the blade level 3 should be able to release the cable, in the car accessories: tension force activity: 1-hob phenomenon occurs: adjust the speed regulation or auxiliary current, observe the speed regulation of the wide effect car, its readability is full of the actual ship pay mouth evil, 3.4 winch hydraulic system
3.4.1 winch hydraulic system principle diagram 4.
Figure 4 winch hydraulic system principle
CB/T 3935-2001
3.4.2 reamer winch hydraulic system debugging condition control table 4. Table 4 reamer winch hydraulic system debugging condition lake test work said
teaching no frame stop plan
qinyuandong continued rise
according to the ban slow
relative no frame fast Ze
wheel trick frame row, Wen hand
suction error section elimination water, Aner frame in the production year electric row. The support should meet the following requirements according to the three systems of the frame age test: the opening and closing of the system should be carried out in the test of the hydraulic pressure display system, and the final test should be carried out in the test: b. Refer to the existing operating tax in Beijing, and make initial adjustments to the seven connections in the system: the electric air sequence valve, the level gradually change, the safety enterprise and other pressure adjustment small elastic resources: in the control source test: the pressure reduction policy at all levels is started and turned, and the oil supply circuit is confirmed to be normal: according to the external working magnetic line diagram in Table 4, the working point is inquired: the oil consumption is electric: the filter frame can display the energy and the elasticity is relatively large d. The filter pressure motor drive operation:
three full-load grapes are adjusted, and the power-off movement in the channel is required to be a.
brake support, and the system has no return The overall pressure is low, and there is no bottom;) the flow in the middle or the price in the middle is reduced, and the performance of the car is better. The performance of the electric adjustment is improved. The actual picture makes the 35-coin anchor machine hydraulic system
15.1 The system principle is shown in Figure 5
Tianzi emergency system
Go to the dumpling knife holder
Positioning
Medical 5 boom anchor machine hydraulic system original buried
CB/T3935-2001
a.5.2 Compared with the wrong beautiful liquid industry system test T table 5 table 5 boom anchor machine wave opening system debugging working conditions
West test soil liquid
Ancient harmonious release
3.5.3 The hydraulic system should meet the above requirements:) Dream test the original working position, and unload the electronic control flow in the system. Electric control Shun Ning, the use of the detailed information for the adjustment:
all levels of liquid main requirements to welcome the south! Dynamic technology: confirm that the pool circuit is normal: connect the government to the above version of the micro-line diagram: carry out the adjustment: the case of loose white out of the mountain in the training work should not be negative working conditions, and set the back yard, check the health attention back industry is a derivative combination of requirements:
do! Simple dynamic explosion: flow rate reading: use a fixed starting speed: release the wrong control test, the error in the lower cause lightly enter the brake note, the movable sliding connection is required to be appropriate, the overall energy can be called the support time 1.2mi;
adjust the adjustment note within the range or auxiliary protection: observe the winch adjustment performance: the specific speed performance should meet the actual ship pressure needs target suction dredger hydraulic system repair and debugging
4.1 Target head winch pressure system
4.1.1: The hydraulic system of the target head winch is shown in Figure 6: National
CB/T3936—2001
Figure 6 Principle of the pressure system of the drag head wwW.bzxz.Net
4.1.2 The pressure system of the target head winch is tested according to Table 6. Table 6 hydraulic system debugging working conditions for the rake head
times the "
" is small, the system is running, the vehicle system, learn braking! The head pressure system debugging should meet the following requirements. The original operating position, the system external electronic control has the flow, the flow, the standard time, the back pressure valve and other karma for initial adjustment:
The service level pressure is proud of the flower room dynamic continuous rotation, and the oil supply is normal: b)
<.) According to the following conditions listed in Table 6, the magnetic line is read and the T condition debugging is carried out: d) When the system is supplied with oil, the drain can immediately release the winch: e: The system is powered off during the process of retracting and releasing the head, and the instruction trap is triggered After that, the target is braked, and there is no falling phenomenon: 1; the speed of collecting and releasing the target is adjusted.
4.2 Related pipe hanger hydraulic system
4.2.1, the principle of the hydraulic oil offline of the pipe hanger is shown in Figure 8
CB/T99952001
Figure 8 shows the principle of the hydraulic system of the pipe hanger
4.2.2 Standard pipe convex dyeing pressure system debugging.. Conditions in Table 7? Target pipe hanger hydraulic system debugging working conditions 2
The target hanger is outward
The target hanger is in the station, and the center of the station is broken
The hydraulic system of the pipe hanger should meet the following requirements 4.2. 3
, refer to the original steps of the inspection: check the overflow and throttling of the system, and conduct initial start-up comparison of the pressure valves at all levels to confirm that the oil supply is on the belt; operate the motor for several circles according to the working conditions listed in Table 7, and conduct working condition test: r:
d) Retract the kidney hanger outward and inward to an adjustable level;) During the process of retracting and retracting the target pipe, the driver will brake the brake. 4.3 Single-liter hydraulic stop valve system
CB/T3935—2001| |tt||4.3.1 The principle of the single-side down-opening mud gate hydraulic system is shown in Figure 8. Area
Figure 8 Principle of the beach pressure system of the single-side down-opening mud gate 4.3.2 Debugging of the single-side down-opening distance gate wave stop system T element according to Table 8, install 8 Single-side down-opening mud gate hydraulic system adjustment reduction working condition debugging two said
Low stop and star mud gate
Low melon closing flow gate
E common closed mud gate
Jingchi gate installation, test and test the certificate
spare::Installation of 8 single-side open down-opening mud door hydraulic system adjustment reduction working condition debugging second statement
low stop and star mud door
low melon closing flow door
E common closing mud door
Jingchi door installation, test live year certificate
spare::Installation of 8 single-side open down-opening mud door hydraulic system adjustment reduction working condition debugging second statement
low stop and star mud door
low melon closing flow door
E common closing mud door
Jingchi door installation, test live year certificate
spare::
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