STC TRADING SERVICE CO., LTD
110 Hoa Cuc Street, Ward 7, Phu Nhuan District, HCMC
Regards,
Mr.Hòa
[Senior Sales Eng. ]
[Senior Sales Eng. ]
[Cellphone]: 0973.940.975
01273.991.622
01273.991.622
01273.991.622
[Email]: hoa@songthanhcong.com
[Yahoo]: Sagittarius_1610
[Skype]: hoadinh_stc
THƯ NGỎ - STC VIỆT NAM
Công ty TNHH TM DV Song Thành Công (STC) chúng tôi luôn tự hào là một trong những nhà cung cấp vật tư và thiết bị hàng đầu chuyên dùng cho ngành công nghiệp trong các dây chuyền sản xuất và trong các hệ thống điều khiển toàn bộ hệ thống hoạt động của nhà máy, xí nghiệp hay các sản phẩm của công nghệ cao và chất lượng.
Chúng tôi là công ty hàng đầu chuyên về Xuất Nhập Khẩu các thiết bị như: Cảm biến, Encoder, Relays, PLC, HMI, Inverter,Thiết bị đo nhiệt độ, áp suất, lưu lương, đo mức, motor, Pump…
Continuous Mercury Monitoring system (CMM)
The Gasmet CMM mercury monitoring system can measure the lowest concentrations of total mercury in samples containing high amounts of dust and gases such as SO2, which traditionally have complicated mercury measurement in e.g. installations such as coal fired power plants stations and power plants co-incinerating refuse derived fuels. Cold Vapor Atomic Fluoresence (CVAF) offers detection of nanograms of Mercury in a cubic metre (ng/Nm3), which allows effetive sample dilution. The potentially interfering SO2 absorption is completely avoided by the technique.
Technical Data
General parameters
| |
| Measuring principle: | Cold vapour atomic fluorescence (CVAF) with extractive filtration, dilution, and thermal conversion |
| Performance: | Minimum range 0 – 10 µg/m3, tested range up to 0 – 1000 µg/m3. Minimum detection limit for total mercury 0.02 µg/m3 (complete system, with dilution) |
| Operating temperature: | 5 – 40 °C, non-condensing, dust free ambient air |
| Storage temperature: | -20 – 60 °C, non-condensing |
| Response time, T90: | Typically < 120 s, depending on the sample line length and measurement time |
| Power supply: | 100 – 115 or 230 V / 50 – 60 Hz |
Spectrometer with integrated thermal converter
| |
| Operation principle: | Direct cold vapour atomic fluorescence (CVAF) in vacuum pressure |
| Detector: | Photon detection unit with photon counting |
| Source: | Low pressure mercury vapour lamp |
| Operation wavelength: | 253.7 nm |
| Sample conversion: | Integrated high temperature thermal converter |
Calibrator for Hg0 and/or HgCl2
| |
| Operation principle (Hg0): | Vapour generation from saturated source and dilution |
| Operation principle (HgCl2): | HgCl2 solution dosing and evaporation |
| Calibration gas: | Dried, and Hg scrubbed instrument air |
| Dilution gas flow control: | MFC 0 – 30 l/min |
| Span gas flow control: | MFC 0 – 30 ml/min |
| Hg source temperature: | 0 – 15 °C |
Calibration concentration ranges converted to Hg0:
| |
| Saturated Hg source: | 1 – 200 µg/m3 |
| HgCl2 solution dosing: | 1 – 1000 µg/m3 |
Measurement parameters
| |
| Zero point calibration: | 24 hours |
| Span calibration: | 24 hours |
| Calibration linearity test: | 1 week |
| Zero point drift: | < 2% of measuring range per calibration interval |
| Sensitivity drift: | < 2% of measuring range per calibration interval |
| Linearity deviation: | < 2% of measuring range |
| Temperature drifts: | < 2% of measuring range |
Instrument air preparation
| |
| Instrument air inlet: | 6 – 10 bar, 80 l/min, 8 mm Swagelok fittings |
| Instrument air filtration: | 3-stage filter unit |
| Nitrogen generator: | Capacity 99 % N2, 8 l/min, 5-6 bars, efficiency ratio 20 % |
| Calibration gas drying: | Absorption dryer, capacity -30 °C |
| Mercury scrubber: | Absorption scrubber |
| Vacuum pump: | WOB-L Piston twin headed |
Alarm outputs
| |
| System alarm: | Gasmet CVAF mercury analyzer and application software |
| Service request | Gasmet CVAF mercury analyzer and application software |
| Maintenance status: | Gasmet CVAF mercury analyzer and application software |
| Result valid: | Gasmet CVAF mercury analyzer and application software |
| Concentration alarm: | Gasmet CVAF mercury analyzer and application software |
Air conditioning
| |
| Cooling capacity: | A35 °C / A35 °C 1500 W |
| Internal circulation: | 500 m3/h |
Dilution probe
| |
| Operating principle: | Ejector with critical orifice |
| Material: | SS 316, glass coated sample wetted parts |
| Operating temperature: | Maximum 250 °C |
| Filter element: | Glass coated SS 316, 2 µm |
| Dust load: | < 2 g/m3 |
Heated probe tube
| |
| Material: | SS 316, glass coated sample wetted parts |
| Temperature: | Maximum 250 °C |
| Length: | 122 cm |
| Other materials, lengths, and temperatures are available on request. | |
Heated line
| |
| Tube size: | 2 * 6/8 mm |
| Core material: | PFA Teflon core |
| Temperature: | Maximum 200 °C |
| Fittings: | 8 mm Swagelok |
| Power supply: | 230 VAC or 115 VAC |
| Power density: | 200 watts/meter |
| The maximum length for the heated line is 30 m with 230 VAC and 15 m with 115 VAC power supply. Analyzer and calibrator are connected to dilution probe with combined heated line which divides into two parts on both ends. There are also 2 unheated 4/6 mm lines for dilution and blowback gases. | |
Electrical connections
| |
| Main supply: | 3 * 16 A |
| Power consumption: | ~ 6 kW (the full CMM with heated lines, 20 m) |
Measuring data outputs
| |
| Gasmet measuring system is equipped with analog output representing the result total Hg concentration. | |
| Analog output range: | 4 – 20 mA |
Enclosure
| |
| Material: | Bake painted steel |
| Dimensions (mm): | 2030 * 600 * 600 (cooling unit on top) |
| Weight: | ~ 500 kg (full system) |
| Protection: | Cabinet IP 54, air conditioning unit IP 34 |
Không có nhận xét nào:
Đăng nhận xét