【 Weak current College 】 stage machinery of the testing and acceptance criteria---Power By 【 China power house network 】

In recent years, the theatre building boom spurred the stage machinery industry rapid development, domestic provinces, municipalities and County, district proposed or under construction of a large number of theatre stage, are equipped with all kinds of mechanized stage machinery, the stage is not only equipped with a complete range of equipment on the platform, also equipped with a wide variety of equipment in the audience. Throughout the construction of a number of theatre, some are nearing completion of civil works, equipment installation engineering has already begun or close to completion. Faced with a complex variety of stage machinery equipment, how to test and acceptance as owners and contractors face a major issue. Since there is no stage mechanical inspection and acceptance of norms and standards, the stage machinery manufacturing and installation team's lack of experience, allows the construction of the theatre in the past the stage machinery of the testing and acceptance, there are a lot of randomness. The majority of construction party (or owners) of the missing stage mechanical technicians, most stage machinery manufacturer and installation company technicians are just getting started with the stage machinery or contact stage machinery, the same lack of stage mechanical inspection and acceptance the work experience, some works even without the stage machinery of the testing and acceptance of this important program, however, have used, for later use and management implications.

In order to stage machinery industry health and sustainable development, doing Theatre construction stage machinery during measurement and inspection work, combined with work experience and reference to relevant information and abroad, on the stage machinery of the testing and acceptance of recommendations and opinions, for reference.

1. inspection and acceptance conditions

Formal examination and acceptance should be in the following conditions before you start:

1) devices (including all control equipment, sensors and other accessories) installation has been completed and the certificate is installed, the device already has operating conditions.

2) permanent power supply wiring already paving, can be a normal power supply. Temporary power supply line can only be used on some devices and parts to experiment.

3) device major parts and individual institutions of movement and performance test has been carried out and a basic up the contract specifications.

4) from device to device installation contractors or companies to test and acceptance procedures, practices, standards, requirements specifications, use of the instrument, assessment standards and work plan have been the owners or/and the owner of a consulting company.

5) submitted by the equipment the contractor for test and acceptance of information (this information can also be provided by the equipment design) has been prepared. These materials include:

Unit is the main material of the factory-qualified certificates or test reports;

Standard mechanical and electrical products factory-qualified certificate;

Main machine parts inspection certificates of competency;

Wire ropes and accessories, chains, high-strength bolts and other mechanical components of the factory-qualified certificate;

Components and parts of the factory Assembly quality inspection certificate of competency;

Welding quality inspection certificate of competency;

Hydraulic element, devices and accessories product certificate of competency;

Coating inspection certificate, etc.

6) from device contractor or installation company submitted consistent with the situation of the drawings are completed. These designs include:

The stage machinery of the process of configuring the graph (including planes, longitudinal profile, cross profile);

Total single mechanical assembly drawings, main part and represents a safety device and the other relevant drawings;

Equipment strength calculation of steel structures;

Control system schematic diagram, block diagram, and control equipment layout;

Electrical system schematics, wiring diagrams and equipment layout;

Hydraulic, pneumatic schematics, equipment layout and specification;

Equipment operation and maintenance manual;

For security reasons to add additional information provided by the other or file, and so on.

2. acceptance of the inspection and test equipment

1. Visual inspection

Appearance inspection to visually inspect, sometimes supplemented with simple tools. Major inspection equipment specifications and status, the focus is on driving, support, load-bearing, balance, steering, and other institutions, safety devices, wire rope winding systems, electrical and control equipment, etc. Visual inspection of the main elements are as follows:

1) devices installed location is correct, quantity is complete;

2) all bodies and equipment are installed securely;

3) are there for all the structural deformation or damage, if any deformation or damage must be repaired; should pay particular attention to the field welding of steel structure for the joint weld quality is good;

4) limit switch, safety devices and locking device, the location is correct, the installation was solid;

5) electrical and control equipment layout is correct, the installation was solid;

6) electrical and control equipment for cable wire connector is firmly, mark is accurate, routing to the neat appearance;

7) painted the color is uniform, there is no leakage brush, crack and fall off, and other defects; in the field of welding, and other processing of its paint is invigorating, etc.

2. equipment overall check

The device overall check mainly check device in use of material and manufacturing workmanship meets the design and manufacture of file requests, hoisting devices and safety device location is also the focus of the inspection. Who has provided the raw materials and parts (such as steel wire ropes and accessories, hydraulic cylinder and pipeline accessories, gear, brakes, couplings, etc) of the product certificate, parts, components, factory processing, Assembly and inspection certificate, welding parts Shi welders ' qualifications and factory effective quality assurance system certification, the device checks can be simplified.

The device overall checks, should develop a detailed test plan.

3. functional test

Testing refers to a single device and multiple similar or different classes of device performance, operation and control function equipment and device noise, etc., compliance testing.

1) a single device performance test

A single device performance test is directed at its main technical parameters of the equipment load, speed, stop-bit precision, and other parameters as well as equipment for determination of the safety facilities, in order to assess the capacity of its driver, the intensity of transmission systems, load and position keeping devices (such as brake, hydraulic valves, etc), stop-bit accuracy, safety protection device actions are sensitive inaccurate.

A large number of different devices (such as scenery boom), you can first random number as a quarter of the total number of devices for testing, there are no qualified equipment, to double the number for testing. If there are no qualified equipment appears, all equipment shall be tested.

The audience should be tested against each.

2) multiple device performance test

Multiple units of performance testing in a single device performance test is completed, the same type or different types of equipment should be provided for under the design movement status be combined test approved their movement, precision, accuracy and chain synchronization program meets requirements. On the device and the device under test are combined in a scene parameters, the bench equipment and devices in the audience and stop bit of campaign is coordinated and effective.

3) operations and control equipment for functional testing

On the operation and control devices for various requirements of functionality, such as manual, automatic, presets, programming, modify, insert, omitted, default, display, print, and other test on one system of electrical protection devices in particular, emergency shutdown system to separate test. On the system in a redundant configuration device testing should be conducted on an individual basis.

4) noise test

Noise test should be based on the provisions of the contract, the technical requirements on a single device running noise in accordance with the testing conditions. -Side noise is commonly used to indirectly reflect equipment manufacturing quality, and to decide whether to adopt the necessary noise reduction measures and noise reduction measures to be adopted. While the audience Hall of the noise is the actual requirements of the theatre, the Auditorium at a specific location on the measured equipment operation noise level. Noise tests in accordance with the provisions of the contract conditions as background noise test, stage state (side one door is closed, the boom is hanging curtains, etc.), measuring positions and height, the audience Hall of the State (around or empty field).

Noise test conditions are met, the noise tests and equipment performance tests were carried out at the same time. When the device performance test of environmental conditions do not meet the conditions of noise tests, the noise test must be carried out separately.

4. the order of performance testing

Typically, a no-load state of performance testing, as well as various limit switch, safety switch, and then load performance testing to assess their ability to drive, the drive system of strength, load and position keeping devices (such as brake, hydraulic valves, etc.).

Before performance testing a single device, after more than one device performance test, according to the design of all kinds of sports State Combinatorial testing to approve its movement precision, synchronization accuracy and interlocking program meets requirements.

In a single device and multiple device performance test, operation and control system of tests to verify the operation and control of the device capabilities of the various provisions.

As mentioned earlier, the test condition to meet the requirements, noise test
4. test and test again

In tests, if a particular parameter or parameters do not meet design requirements or provisions of the contract, is regarded as defect testing and recorded in the test defect list.

To test the defect must take steps to eliminate and to test again as required until qualified. Only in all test projects meets the requirements before they may handle the acceptance procedures.

5. types of test and acceptance

This test and acceptance is the following:

1) new stage machinery and equipment for testing and acceptance;

2) old stage machinery and equipment for significant modifications of the test and acceptance;

The major changes include:

System changes and itinerary range or stroke play,/the beginning point of change;

Lifting capacity of change;

Drive and braking device of the change;

Support or suspension device structure of change;

Operation, control, equipment or operations, control system changes, etc.

3) equipment overhaul after testing and acceptance

Equipment overhaul means support, load-bearing or suspension structure and major components of the drive system of the repair or replacement. The same model, same specification of standard components such as rope, hydraulic cylinder and pipeline accessories, motor, reducer, coupling, brakes, etc. is not in the overhaul of the replacement.

4) regular maintenance of test and acceptance

Theatre machinery and equipment should be subject to periodic maintenance system, in continuous use for some time, according to the actual situation on the device or rotation overhaul. In Europe, the stage machinery of the periodic inspection and test cycle normally once a year.

Periodic inspection and testing, including visually inspect and test two content, check the device status and support and load-bearing parts, transmission system, suspension system, load and position hold agencies, security appliances, electrical, hydraulic and pneumatic components, features, focusing on safety, load and position keeping, suspension devices. Typically, only the part of the structure or the performance of major doubts existed before the disintegration of the inspection of the part.

This article is about the only stage machinery equipment testing and acceptance of basic principles and fundamental content, in the specific work practices, according to the actual situation develop specific test content, test procedures, test methods and test plan when to determine the test tools and precision level, the development of acceptance criteria. The entire testing process all data are recorded, test after the completion of the report you want to write a test, and test report for acceptance stage machinery equipment.