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Kiev, 2013 Presentation of the «ND TECHNOLOGY» company: “Ultrasonic stationary and portable level gages. Operating experience in Ukraine”.

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Presentation on theme: "Kiev, 2013 Presentation of the «ND TECHNOLOGY» company: “Ultrasonic stationary and portable level gages. Operating experience in Ukraine”."— Presentation transcript:

1 Kiev, 2013 Presentation of the «ND TECHNOLOGY» company: “Ultrasonic stationary and portable level gages. Operating experience in Ukraine”.

2 Presentation plan: 1. Application purposes of modern level gage (why is the level gage bought) 2. Review of Ukrainian market of level gages, used technologies 3. Characteristic features of ultrasonic level measuring method 4. Review of models of ultrasonic level gages and software 5. Technical characteristics of ultrasonic level gages 6. Design features of electroacoustic transducers 7. Certificates and acknowledgment letters 8. Level gage operation experience, realized projects 2

3 - increasing of measuring accuracy; - elimination of possibilities of individual errors at measuring; - automation of measuring process – refusal from gauge stick; - use of measured data in automated accounting systems; - obtaining of information about product density; - use as signalling device in system of EDES; - use as a device for automatic calibration of tanks; - continuous observation of life cycle of tank and product in it during the whole storage period 1. Application purposes of modern level gage Why is the level gage bought: 3

4 According to the used measuring method: - magnetostriction (“float”) ~ 64% - capacity ~ 0,3% - radio frequency ~ 12% -ultrasonic (only “ND”) ~ 17% - others ~ 6,7% 2. Review of Ukrainian market of level gages * All known types of objects are taken into account (filling stations, petroleum storage depots, industry, railway, etc.) 4

5 The main brands, used in Ukraine: - Veeder-Root (TLS…) OPW (Site Sentinel…) Struna (PSD…) - “ND” (UUS, UUP…) ~ 24% - other manufacturers ~ 18% 2. Review of Ukrainian market of level gages ~ 58% * All known types of objects are taken into account (filling stations, petroleum storage depots, industry, railway) 5

6 - conversion of method from military production of USSR; - deep long-term theoretical and practical investigation of ultrasound extension properties in liquid medium; - application practice on hundreds of objects of various sections and areas of practice (filling stations, petroleum storage depots, utility companies, industry, etc.) 3.Characteristic features of ultrasonic level measuring method Background of creation and development of method: 6

7 - possibility of use of noncontact measuring method through metal walls of tanks; - possibility of determination of weight characteristic of fuel of standardized types*, percentage ratio of propane/butane for liquefied gas; -absence of high requirements to wear resistance and strength of equipment design at realization of method ; - simplicity of transducer design and method for their installation in/on tanks, as a result – simplicity of service maintenance and simplified service support procedure, absence of necessity of expensive SPTA; - durability of ultrasonic sensors is not less than 14 years 3.Characteristic features of ultrasonic level measuring method Positive side of the use of ultrasound as “measuring device”: *There is a possibility of identification of oil product manufacturer 7

8 - based on detection and ranging of reflecting surface by means of ultrasound through sound transparent media; - level gage carriers out time measuring between radiation of acoustic signals and arrival of echo signals from reflecting surfaces; - according to the results of detection and ranging a boundary line of material (liquid level) or two unmixed liquids of various density (level of bottom water) is determined, in case of stratification – levels for separation of liquids; - self-diagnostic check – presence of “measuring base”, automatic regulation of signal amplification level, etc. 3.Characteristic features of ultrasonic level measuring method Principle of operation of ultrasonic method: 8

9 - calibration interval of 2 years (rivals – 1 year); - periodic verification can take place directly on object - special imitator is developed for this purpose and verification can be carried out without dismantling of probes (rivals – dismantling and export); - central block of level gage is unified: more than 64 probes of different types (immersion, surface contact, air, OPW probes) can be simultaneously connected to one central block; - absence of moving elements, exception of mechanical wear 3.Characteristic features of ultrasonic level measuring method Unquestionable advantages of ultrasonic level gages, to which it is necessary to pay attention: 9

10 - used for noncontact measuring of liquid level and estimate of density; - are essential for control of tanks with liquefied gas or toxic aggressive liquids; - allow carrying out measuring without opening of tanks on railway vehicles; - while working with gas – determination of propane/butane ratio 4. Review of models of ultrasonic level gages Level gages with SURFACE CONTACT electroacoustic transducers: Stationary level gage UUS-00* with surface contact transducers Portable level gage UUP for railway tanks** ** estimation measuring of product density without opening of tank is possible * There are no any analogs in Ukraine 10

11 4. Review of models of ultrasonic level gages 11

12 4. Review of models of ultrasonic level gages Level gages with IMMERSION electroacoustic transducers - for operative liquid level in stationary SHT and SVT; - calculation of weighted volumetrically density *; - measuring of separation of level of two material (bottom water); - calculation of liquid mass and volume; -signaling of limiting and given levels of liquids; - determination of temperature cut throughout the height of probe; - number of serviced probes – more than 64 * base delivery set comprises a functional for estimation of density 12

13 4. Review of models of ultrasonic level gages 13

14 4. Review of models of ultrasonic level gages Ultrasonic SIGNALING DEVICES - used for signaling of limiting and given levels with further activation of control circuits of instrumentation and automation; - can be immersion or “air” 14

15 - allows controlling of parameters in on-line mode; - monitoring of nonstandard and emergency situations; - remote access; - control of parameters: - level - volume - density - mass - temperature - sound speed* - level of bottom water - deposit level at the bottom 4. Review of models of ultrasonic level gages ND-UUS application software * It is important to control sound speed for prevention of unsanctioned mixing 15

16 - comparison of “book” and actual parameters of fuel entry/withdrawal - autocalibration functional of tanks for determination: tank damage or unauthorized withdrawal of fuel at given level height - work with factors at situation assessment (see then) 4. Review of models of ultrasonic level gages ND-UUS application software 16

17 4. Review of models of ultrasonic level gages ND-UUS (ND-OIL, ND-OFFICE) application software: Monitoring factors of nonstandard situations 1.Lack of fuel sale on filling stations and in separate fuel distribution panels (pistols); 2. Long shift change on filling stations; 3. Absence of connection of accounting system with level gage; 4. Non-standard change of temperature in the tank; 5. Non-standard change of average density in the tank; 6. Change of the level of bottom water in the tank; 7. Acceptable level of bottom water in the tank; 8. Change of actual balance between shifts (at shift change); 9. Growth rate excess in difference of actual and book fuel quantity; 10. Deviation excess in difference of actual and book fuel quantity; 11. Inconsistency between combined and actual density of fuel before and after discharge; 12. Inconsistency between combined and actual volume of fuel before and after discharge; 13. Inconsistency between combined and actual mass of fuel before and after discharge 17

18 - possibility to work with mnemocircuits; - on-line display of parameters of fullness of tanks of filling station or petroleum storage depot 4. Review of models of ultrasonic level gages ND-UUS application software 18

19 5. Technical characteristics of ultrasonic level gages Parameters Stationary level gage with immersion transducers UUS-01 Stationary level gage with surface contact transducers UUS-00 Portable tote level gage UUP “Air” level gage UUS-06 Permissible absolute limits of errors of level measuring +/- 1mm+/- 1mm (from 0,1 to 5m) +/- 6mm (from 0,1 to 5m) Permissible absolute error at measuring of level of bottom water +/- 2mm +/- 5m (from 0,1 to 5m)- Absolute error at measuring of temperature +/- 0,5⁰C Relative error at calculation of volume by means of calibration charts 0,01% - Measuring range of level of bottom water From 0 to 0,1m From 0,15 to 29,8m- Range of temperature measuring from -50⁰C to +80⁰C Level measuring range in the tank From 0,1 to 15m From 0,1 to 30mFrom 0,1 to 15m Overage failure interval hours (14 years) cycles of measuring (10 years) hours (14 years) 19

20 Ultrasonic measuring system consists of: - central block (for installation in control room); - UUS block (for installation in storage area); - set of ultrasonic transducers: - immersion transducer (P25T); - surface contact transducer (P1, P5) 6. Design features of electroacoustic transducers 20

21 6. Design features of electroacoustic transducers Design of immersion transducer (probe) - type of transducer – immersion; - installed to the neck of diameter is not less than 85 mm; - explosion protection marking of transducer 0ЕxiaIIBT4, electronics in pressure compartment of transducer 1ЕxibIIBT4; - a brief description of electroacoustic transducer: A flange is provided for binding, fixing at installation on probe; on the upper end of metal rod the pressure compartment with block of electronics is fixed; transducer represents an integrated structure, the base of which is rod; inside of the rod thermal detectors are fixed, uniformly distributed along its length; to the lower end of the rod a block of piezoelectric transducers is welded, in which two piezoelements are fixed, one of which provides measuring of level and sound speed in liquid, and the second provides measuring of level of bottom water; a sound pipe in a form of tube with holes is attached to the rod above the upper piezoelement by means of special clamps; the sound pipe is filled with liquid; special reflectors (markers) are fixed inside the sound pipe for measuring of sound speed in controlled liquid. 21

22 Installation of immersion probes in SHT and SVT 6. Design features of electroacoustic transducers - P25Т transducer is installed to the upper rod of SHT - P25 transducer is installed to cleaning manhole of SVT; - Installation on the top is possible; 22

23 Installation manner of surface contact transducers 6. Design features of electroacoustic transducers - surface contact transducers are installed to external surface of tank by means of magnetic-adhesive device of the installation; - installation, mounting, metrological check without stoppage of production process (it is not necessary to open the tank, release the pressure or drain a liquid) External placement of transducers on tank: - for noncontact determination of liquid level (2); - measuring of sound speed in liquid (1) 23

24 Measuring conditions for gas 6. Design features of electroacoustic transducers - walls of cisterns (tanks) must be single-layered, thickness is less than 50 mm; - walls must be made of metal or other sound-transparent materials; - design of cisterns (tanks) must provide an access to their bottom part ; - on the bottom of cisterns (tanks) must not be a considerable layer of sound non-transparent deposits; - availability of calibration charts; - absence of inner structures 24

25 7. Certificates and acknowledgment letters - All models of level gages are introduced to the State registers of measuring devices of Ukraine, Belarus, Moldova, Russia and Kazakhstan; have necessary acknowledgment letters for exploitation in stated countries; - All level gages have explosion proof construction : confirmed by “Certificate of explosion proof” (Donetsk, Test certification center of explosion proof electrical equipment ); - All level gages correspond to the requirements of labour protection regulatory documents on chemically hazardous objects, namely: 1. “Safety regulations for plants of the main chemical industry”; 2. “Safety regulations in production, storage, transportation and use of chlorine ”; 3. “Regulations for arrangement and safe use of pressure vessels” 25

26 8. Operation experience in Ukraine and CIS countries The largest projects for delivery of level gages: “ND TECHNOLOGY” clients on delivery of level gages to filling stations and petroleum storage depots: Other projects of “ND TECHNOLOGY”, LLC: - central energetic customs of Ukraine, Georgian customs; -security and metrological services of “Lisichansknefteorgsintez”, SC, “Khersonneftepererabotka”, “Kremenchug NPZ”, “AZOT”, OJSC in Cherkassy, Dneprodzerzhinsk, Severodonetsk, Rovno; - Dolinsk, Gnedintsev, Yablunivskyi and Seletsynskyi gas processing plants; - Kievvodokanal. * Detailed – on or «NEFTEK-OIL», «BRSM-NAFTA», «AZOVNEFTEPRODUCT»; I.C.S. “PETROM MOLDOVA”, «IRPENNEFTEPRODUCT», «ATAN-CRIMEA», WOG, TNK-BP 26

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