There is a possibility of permanent status monitoring of vacuum systems and vacuum pumps within these systems.
Almost finding faults in the vacuum system starts only then, when there was already some sort of major breakdown in the equipment, incoming into the vacuum system, and vacuum system does not issue the necessary technical specifications. Typically, this occurs during the process that leads to the expensive marriage and, as a consequence, to the failure of the timing of responsible contracts. Service of vacuum equipment requires highly qualified staff. However, even typing the required number of qualified staff, sometimes it is impossible to quickly determine the condition of a vacuum pump in the absence of objective information about his condition. Modern technology allows for the comprehensive handling of information about the condition of each vacuum pump, using a variety of sensors and displaying information in real time on the computer. Pumps, depending on the principle of their operation, can be equipped with various sensors – vacuum, temperature, level sensors, flow, vibration, time, etc. Information from sensors, stored on the computer in a convenient form for handling. Using this information, you can collect statistics on any of interest at a particular point in time parameters.In each case, the set of sensors should be determined according to the principle "necessary and sufficient". In the most primitive form of useful and objective information can be obtained from the installation of vacuum gauges. Evaluating the readings from vacuum sensor (installed before each pump), both in real time and in studying the chart (stored in computer) the magnitude of the pressure before each pump for a period of time, it is possible to draw conclusions about the technical condition of a pump. All of the above information can be sent via the network to a separate server where it will be stored indefinitely. In fact it is possible to create a permanent monitoring and forecasting of the status of each pump, included in the vacuum system. By setting specific criteria upon receiving from the sensors information you can programmatically determine the state of any vacuum system and any pump that is included in it, namely: normal, abnormal, emergency. As a set of statistics possible issuance of more specific information about the malfunction of the vacuum equipment. Bringing all the information from the sensors of all vacuum pumps and systems of the Customer on a single server, will be able to fully control and predict the condition of the entire fleet of vacuum equipment regardless of its location. This will avoid costly major repairs of vacuum pumps, to a greater extent to eliminate the marriage by reason of the vacuum systems will allow you to set any modes in vacuum during technological processes. A transition to automated vacuum system. Provided equipment systems of the above sensors, before each run the vacuum system can be forced or automatic operation with self diagnostic results information on the state of the vacuum system. Below are details for real vacuum systems:
Below are details for real vacuum systems:
The figures shows the graphical dependence of the pressure before the pumps DVN-5000 "red line" (in the monitoring program was not yet fixed a name with ARPw-15,000 DVN-5000), DVN-1500 "yellow line" and jet "black line" during the same melting No. 8-25-0659 held on 31.07.2007 with a 19-18 to 01-27.
Accommodation in the one drawing all the graphs of pressure not shown due to scale. On the General chart of Fig. 3 bottom 3 lines merge into odnoi practically invisible, so the graphics pump 150-SZO and other pumps posted on 2 figures.
The graphs show that the apparent poor condition of the pump 150-SZO (the average pressure during melting in front of him was 130 mm. Hg.St. at the rate of 80 - 90 mm of mercury.St.) However, the vacuum system, with pump DVN-5000 worked steadily. The compression ratios of the pumps were as follows: k = 5.5 for DVN-5000, k= 6.3 for DVN-1500, k= 46 for a two-stage ejector.
The program information processing will certainly be subjected to improvement for the convenience of operators.
