This technology is suitable for the installation and commissioning of the compressor control system in the industrial and civil surface engineering.
According to the compressor installation drawings and current installation specifications, the quality control of the project is divided into the following main elements: electrical interlocking table test; these units as the key control unit, strict quality control of the construction process, and according to the installation characteristics of each unit, list the quality control standard of different units and specific implementation project measures respectively.
The 2.2 unit project quality control equipment installation table is generally follow the compressor compressor with the transportation package; inspection and acceptance, should carefully check the compressor random table list of all tables and the number of specifications and main technical parameters of installation should comply with the requirements of design drawings; carefully check whether there are cracks, broken shell, oil leakage; spare parts and spare parts are complete. Check the PLC control part of the control cabinet to see if there is any shedding, lack and damage of parts, and whether the control part is consistent with the signal transmitted on the field table, so as to avoid the phenomenon of not matching each other, and can not normally receive signals, and timely put forward.
Before the installation of the 2.2.1.2.1 control cabinet and the on-site inspection table, it is convenient to maintain and operate according to the random construction drawings and relevant specifications.
All of the 2.2.1.2.2 pressure gauge, pressure transmitter, temperature change etc. all random table should have a table calibration and inspection before installation; on the part of the random set detection element and table should be removed, the motor stator, rotor and bearing temperature measuring element in the unit performed at room temperature and voltage test you can. Other single tables must be carried out in accordance with the relevant calibration specification and calibration of the one table.
2.2.1.2.3 all the test table adjustment process requirements, the heart should be fine, the action must be slow, no use of brute force, in order to prevent damage to the table.
The installation and laying of 2.2.1.2.4 dial boxes, measuring pipes and electrical pipelines shall be carried out according to the location and path required by design and random data requirements, so that the operation of convenient tables can not affect the operation and maintenance of units, but not clogging operation and safety passages.
The test records should be done for the single adjustment and single loop test of all 2.2.1.2.5.
2.2.1.2.6 all compressor test, control and interlocking alarm system test shall meet the design requirements of compressor random data and Design Institute, and test according to the data provided by the above two party.
Install the meter body pressure, installation unit installation unit 3.1 sets of instrument meter body temperature, liquid level and other conventional table before installation check the drawings for each table using a compressor parts, because there are a large part of the pipeline is high, so it makes a part is not the same confirm the installation position, after the scene to be marked, and one by one account to the pipeline construction personnel, to avoid mistakes, for the subsequent construction inconvenience.
The following points should be noted for the installation of a temperature measuring element for the shaft temperature: the installation should be placed before the unit builders have finally closed the bearing box.
The cable or compensating wire of the temperature measuring element is fixed in the bearing box with a steel card to prevent damage.
The cable of the temperature measuring element and the shaft chamber interface of the compensating wire should be sealed as required to prevent the leakage of the oil in the bore.
3.2, the installation of the instrument panel and the tray rack, the installation of the dial box and the tray rack shall be installed according to the design documents, the unit installation manual and the specification requirements. The dial box and the meter should have reliable grounding, and the grounding resistance should meet the requirements.
Test test system interlock alarm detection control unit 3.3 test parameters, according to the design requirements of the function and the compressor random data and other related content, before the test of the electric control cabinet in the interlock switch to test position, the testing process to avoid misoperation will host up cause unnecessary damage.
Table 3.3.2 control cabinet in power before, be sure to check whether UPS is working properly, then the detection and control cabinet into line power is 220V, check the PLC power line by a small transformer, otherwise it will damage the PLC, after confirmation, to send the UPS switch, then send power circuit breaker cabinet look at PLC, indicating whether normal.
3.3.3 pressure gauges and pressure transmitter, open the root sampling valve all before test, to see the scene table and PLC indication is consistent, if not consistent, the site exhaust treatment, to be measured in the pipeline gas emission after installation on the site, and then PLC instructions are compared, to reach consensus so far.
3.4 lubricating oil heating control system test 3.4.2 when the table below 17 degrees temperature detection and alarm indication of low temperature, PLC and electrical control cabinet for a signal when the electric control cabinet motor protector action, heater start, until the oil temperature is above 35 degrees and loud alarm lamp cabinet table indicating high oil temperature, at the same time to PLC the electrical control cabinet, a signal, electrical control cabinet motor protector action heater should stop working. (attached, 5) 3.5 the test of the main oil pump / standby pump on the other side: the condition is that the normal oil level of the lubricating oil tank can start the oil pump, and transfer the switch to 1 or 2 position, and specify an oil pump as the main oil pump and start.
3.5.1 when the total tubing pressure is low and 0.1Mpa, the alarm lights in the cabinet are loud and alert, and give a signal to the electrical. At this time, the motor protector acts in the electrical control cabinet, and the 2 oil pumps start at the same time. When the oil pressure is more than 0.15Mpa, the auxiliary oil pump stops working, and the main oil pump continues to run.
3.5.2 lubricating oil general pipe pressure low and 0.15Mpa