LCD screen installation by our company (Sichuan Changhong Electronic Systems Co., Ltd.) is responsible for the Lei Ma screen prison project designated installation site. The tools and instruments required for equipment installation and commissioning are provided by our company. When our engineers install their equipment on site, they will comply with the provisions of the Lei Ma Ping Prison Project and local laws and ordinances, and provide installation methods and installation procedures approved by both parties.
(1) System Installation Program
Installation Base
Installation Bracket
Installation Screen
System Wiring
System Debugging
System Commissioning
(2) Wiring Specification
The wiring in the identified location should be in place and reserved length of 1 meter. Can not determine the location of the wiring to reserve a sufficient length, the middle can not be transferred
Buried in the renovation of the non-removable wiring, each type of cable must be reserved for a spare line
Equipment connection using connector mode, the connector comes with interconnecting cables with grouping and chromatography;
Pipeline laying in accordance with the JBJ16-83 "Building Electrical Design Technical Specification" of the Provisions;
Each line must be marked with a line marking number that can not be easily erased;
AC grounding resistance is required to be less than 1 Ω;
The path of the wiring is as short as possible;
Tie the wires should be neat, try to straighten out each line, it is best not to cross the line.
(3) system debugging program
We are responsible for the quality of the whole system debugging, in accordance with the requirements of the work schedule in order to carry out.
LCD display system is composed of LCD display unit, other necessary control and interface equipment for high-performance display wall system. The display wall can be considered a large area ` logic screen. Under the control of the control host, a variety of signals can be arbitrarily opened on the entire screen, scaling. The following is the system debugging configuration flow chart.
(4), the equipment trial run
The equipment trial run start time in strict accordance with the provisions of the Lei Ma screen prison, during the trial run, we arranged for a person to guard the equipment, subject to unified management.
Work content:
In the morning, according to the Leimapin Prison's prescribed time to turn on the machine
Play the prescribed program content
Monitor the operation of the equipment
Discover the abnormalities in time to deal with
In the afternoon, in accordance with the prescribed time to shut down the machine
. Part II: electrical equipment installation and commissioning programelectromechanical equipment buried engineering
1, the foundation channel steel buried
The pumping station does not have a control room, high and low-voltage distribution room *** four cable trench above the two sides of the foundation channel steel to be buried. According to the drawing requirements every 500mm welding "several" type iron to increase the strength, and welded firmly. Channel steel surface should be straight, 100mm above the ground, and the inner moldboard tight, with a level meter for elevation measurements and adjustments, its level deviation control within 1/1000, the full length of the level of not more than 5mm
2, cable bracket foundation depth
According to the specifications required by the drawings of the model in the cable trench pre-buried two Through the long flat iron, used to weld the cable bracket, buried before the flat iron on the lower side of every interval of 500mm welded an iron foot φ6 L = 100, the flat iron on the top of the template, and fixed firmly with rebar, up and down the two flat steel spacing difference is not more than 10mm, iron foot level deviation is not more than 10mm.
3, through the line steel pipe buried
< p> 3.1 buried and underground or concrete slab piping distortion radius should be greater than or equal to 10D.3.2 a buried pipe no more than two right-angle bends, distortion radius in line with the requirements. Pre-embedded piping and pre-embedded box should be good protective measures to avoid clogging, the installation position is correct and firm.
3.3 Steel pipe butt welding requirements are firm and reliable, the side of the side with a steel bar to pull the welding, φ40 the following steel pipe should be threaded, the mouth of the pipe should be plugged seal.
3.4 In the closed circle of steel pipe with in and out of the line mouth, the mouth of the pipe should be blocked with paper or fiber bags, top in the stencil, reinforced with steel welding, not welded to the stencil.
3.5 lighting pipeline through the building expansion joints, should be buried in the expansion joints on one side of the junction box (steel) and spot welding with the lighting pipeline, expansion joints on the other side of the pipeline into the junction box, shall not be welded, through the settlement joints of the building buried pipe to be disconnected, and set a suitable casing, pipe joints with hemp treatment.
4, grounding buried
Grounding line should be lap welding, weld length and quality requirements in line with the requirements of the construction drawings and the provisions of GB50169 (weld length: flat steel for twice its width, and at least three prongs welded: round steel and flat steel connection, the length of its diameter of the round steel 6 times): Welding After welding, the weldment and weld seam should be cleaned up. And add anticorrosive coating. Where the extension from the grounding device should be clearly marked, and take anti-corrosion and protection measures.
(2), the acceptance of electrical equipment
Acceptance of electrical equipment: the main electrical equipment, including electrical equipment, including high and low-voltage switchgear, station transformers, electrical equipment, cables, capacitive compensation devices: other distribution boxes and trays, control and protection panels, and so on arrived at the site, we will be in the Party Material Division, the supervision engineer with the supplier under the auspices of ****. After the arrival of the site, we will be under the auspices of the material department of the Party, the supervisory engineer and the supply side *** with the equipment for the unpacking inspection, mainly on the type of equipment, specifications, quantities, appearance, accessories, spare parts, technical documents, such as comprehensive and detailed inspection, do a good job of the records, the three *** with the signatures of the recognition of the equipment, equipment, the internal quality of the installation to be carried out after the installation.
(C), high and low voltage distribution screen installation
High voltage switchgear installation
1.1 in the cable trench concrete construction, according to the drawings or disk cabinet specifications for the installation of basic channel steel, the installation position must comply with the requirements of the drawings, the level of verticality, in line with the regulations and standards. Unstraightness level should be less than 5 millimeters.
1.2 disk cabinet, screen foundation must be reliably connected to the grounding network, must ensure that the grounding flat steel cross-section to meet the design requirements, and do a good job of anti-corrosion treatment.
1.3 panel cabinet equipment
Part III: diesel generator set installation and commissioning programThis project diesel generator set installed in the basement generator room, mainly by the diesel generator set, daily fuel tank, accident fuel tank, accidental fuel pumps, air inlet muffler, exhaust muffler, fuel pipe system, smoke exhaust system and electrical systems.
In the basement equipment lifting in place program has described the main equipment into the field, acceptance, unpacking, lifting, in place program. This program mainly describes the installation and commissioning work after the generator is in place.
A generator set installation
1, the generator set in place in accordance with the requirements of the equipment to install the appropriate shock absorbing devices, grounding devices.
2, inlet and exhaust muffler installation should be sealed with the wall, and fixed reliably. Install the rain-proof system outside the muffler.
3, before the installation of the oil pipe to ensure that the inner wall of the pipe is clean, the tank, piping, valves and other components need to be reliably grounded.
4, the pipeline flange gasket using graphite metal winding gasket.
5, flue, flue muffler, flue expansion joints should be fixed firmly, expansion joints and mufflers set spring hangers.
Second, the preparation before starting
1, all systems of the generator has been checked. Grounding is good.
2, according to the provisions of the fire extinguishers, yellow sand firefighting equipment.
3, the generator room other civil construction, fire and other work all completed. No fire, cutting and other operations.
4, after the completion of the above work, return to the management company, the supervisory company, to be approved after refilling diesel fuel.
Third, the diesel generator set electrical commissioning program
1, the generator body commissioning
Measured with 10,000V megohm meter insulation resistance should be greater than 0.5M.
Measured DC resistance converted to the generator factory test at the same temperature resistance error should be less than 0.5M. Under the resistance error should be less than 2%.
2, the generator protection circuit of the whole test
Fourth, the generator put into operation before the test
generator outlet switch is disconnected, all input, the generator boost to the no-load rated voltage, in the busbar and the generator output voltage on both sides of the nuclear phase test. The generator output voltage out of the line marking and bus phase sequence in line.
Fifth, the unit commissioning debugging.
1, the unit no-load operation: start the diesel generator manually with the unit's starting device without load test drive, check the unit's rotation and mechanical transmission with or without anomalies, whether the oil supply and oil pressure is normal, whether the cooling water temperature is too high, whether the speed of the automatic and manual control to meet the requirements. If problems are found, solve them in time.
2, diesel generator no load test qualified, and then check the temperature rise of the body and bearings; only the unit no-load test qualified, can be tested with load.
3, testing the unit's protection performance: the use of instruments were simulated to send out low oil pressure, high cooling water temperature, overvoltage, and other signals, the unit should immediately start the protection function, and alarm.
4, the use of phase sequence table on the utility and generator power to verify the phase sequence should be the same.
5, the unit with load test: the unit at the rated speed of power generation, check the unit with load operation of the main indicators. Respectively in the 25% load operation for 1 hour, 50% load operation for 1 hour, 75% load operation for 2 hours and 100% load operation for 0.5 hours, the test results should be consistent with the unit design requirements.
6, unit full-load test: full-load condition of the unit's performance tests, according to the requirements of the completion of the unit's full-load running time.
7, and the system's linkage debugging: artificially cut off the utility power supply, the main unit should be able to automatically start and supply power to the load within the time required by the design. Restore utility power, the unit automatically shut down.
8, test run acceptance: the switchgear on the receiving side, automatic or manual and protection devices, etc., after passing the test, according to the design of the standby power supply using the distribution program, the load test, the unit and the electrical device to run continuously without failures. Only then can the handover acceptance.