水汽分析取样装置说明书(英文)

GRAND POWER Water and Steam Integrated Sampling Unit INSTRUCTION Model: CXD JILIN CITY GRAND POWER EQUIPMENT CO., LTD. GRAND POWER 光大电力 I. Summary This unit is adapted to pre-treatment the sample of water and steam for chemical analysis of thermo-equipment, manual sampling, on-line quality analysis of water and steam, computer supervising of the checked parameters. This unit composes of three basic sections: CXD series Sampling Unit of Chemical analysis, which functions in pre-treatment, manual sampling, providing eligible sample for on-line chemical analysis; Analysis instrument screen, on which installs on-line chemical analysis instrument and record displayer etc.; Computer control system, which functions in data collection, treatment, display, reports print, supervising, and epigynous computer control communication etc. Clients can select part of the unit or select all according to demand. II. CXD series sampling unit of chemical analysis 1. Technical characteristic Using a total complete new techno-route, this unit acquires outstanding benefit that other sampling units cannot match, either domestic or overseas. In detail, the characteristics are as below: (1) The sampling unit adopts high-efficiency temperature-pressure reductor (with patent) for fluid of high-temperature and high-pressure. When fluid of high-temperature and high-pressure (such as water, steam etc.), flows along this unit, the temperature and pressure will be reduced, that is the unit works with double functions, one is as the cooler of traditional sampling unit, the other is as the reductor. (2) The sampling unit is not set with pressure-only reductor, which puts an end to the traditional disadvantage caused by reductor block resulted in too much maintenance. (3) The sample flows along the high-efficiency temperature-pressure reductor in a status of deep puffing, with high heat-exchange efficiency. Under the same condition, the usage of the cooling water is only 1/2 2/3 that of the existing cooler. (4) The sample flows along the pipes of the high-efficiency temperature-pressure reductor with speediness that helps the wall of pipes self-clean. (5) The sampling unit adopts a new-type filter, pole-style filter (with patent), barring mechanical impurity granule with diameter over 1.4mm without changing the composition of the water sample basically. Pole-style filter can self-clean for the large flux of the sample, block-proof, if need be, the exhaust drainage valve can be started to clean the filter. The pole-style filter is solid and durable, exempt from maintenance. (6) The sampling unit has a compact structure occupying little space, for example, ten-point of sampling unit is 2.5m long, 0.65m wide, and 1.6m high, every point of sampling added, only 0.2m longer needed, without changing of width and height, therefore, the occupying area is only 3/5 of the current sampling unit. 2. Working conditions (1) Temperature of the environment:540 (2) Power supply: 230V10%,50Hz, 2KVA (3) Cooling water: A: Temperature: 0.2MPa C: Flux: subject to the number and the temperature of sampling points, fifteen points of sampling designed according to 30T/h D: The cooling water of the temperature-pressure reductor adopts de-salted water, without rot, dirt or pollute. 3. Main technical index (1) Under the condition of the temperature not higher than 560 and the pressure not bigger than 35Mpa, the temperature of the treated water is about that of the cooling water plus 5(1 GRAND POWER 光大电力 ), the pressure is smaller than 0.3Mpa. (2) The flux of water sample: 1500ml/min (3) Temperature of the outlet water can be set an alarming rating by the round detector by which the max absolute error measured should not be higher/lower than 1. Any exceeding of the alarm value will cause automatic alarming. The normal alarm is set at 4050. (4) Pressure safety valve of the outlet water sample is set at 0.62.8Mpa, adjustable. Inlet of cooling water has pressure-overloading alarm, with lowest setting at 0.2MPa and highest setting at 0.8MPa. 4. Formal dimensions Seventeen-points sampling unit is 3.6m long, 0.65m wide and 1.60m high. 5. Debugging procedure 5.1. Preparation before operation 5.1.1. According to the system diagram, be familiar with the positions and functions of all sections for the sampling unit. 5.1.2. Regulate the pressure limits on the contacts of cooling water, and check the alarm system if normal. (1) Set the pressure meter on the contacts of the inlet cooling water pipe with a limit at 0.2MPa0.8MPa. (2) Set the pressure meter on the contacts of the outlet cooling water pipe with a limit at 0MPa, and the pressure difference to the inlet not lower than 0.2MPa 5.1.3. Power on the round detector, set the sampling cycle and alarm values according to Instruction settings. (1) Max. value of alarm is set at 4045 (2) Min. value of alarm is set at 0 5.1.4. Check the nodes, airproof parts, fastening parts of the sampling unit if loosed, check the valves if closed. 5.2. Pour in cooling water 5.2.1. Open all in/out ball-valves at all points of sampling for cooling water 5.2.2. Open the valves for in/out cooling water pipes. Pressure difference between inlet and outlet of cooling water pipes should not be lower than 0.2Mpa, as normal. 5.2.3. Check the alarm (1) Regulate the inlet pressure on the contacts of cooling water at maximum (actual pressure of the cooling water, if alarmed, regard the alarm as normal. Then recover the pressure 0.8MPa. (2) Regulate the inlet pressure on the contacts of cooling water at minimum (actual pressure of the cooling water, if alarmed, regard the alarm as normal. Then recover the pressure 0.2MPa. (3) After finishes the alarm debugging, regulate the pressure difference between inlet and outlet at a stable status of 0.2MPa. 5.3. Operation of high-temperature and high-pressure system Only if the cooling water works in normal condition, the high-temperature and high-pressure system can be operated. 5.3.1. Manual sampling valve and the flowmeter knob are all opened 5.3.2. Close first inlet and second inlet valves of sampling water, drainage valve and flow control valve. 5.3.3. Slowly open the first inlet valve of the sampling unit, watch the connections of filter, the second inlet valve, contamination-drain valve to check if leaking, if leaks, fasten with special spanner (Be careful, work with gloves against scald). GRAND POWER 光大电力 5.3.4. After the connections of the first inlet valve, contamination-drain valve and filter are confirmed no leakage, slowly open the contamination-drain valve to drain away the water in the pipe, with the temperature of water heighten to a stable point, fully open the contamination-drain valve then close immediately, repeat the operation of on and off for about three times, then close the valve. 5.3.5. Slowly open the second inlet valve, watch the system of high-temperature and high pressure if leaking, if leaks, close the first inlet valve, repair the leakage, then open the second inlet valve. 5.3.6. Slowly open flux-control valve, watch the floater of the flowmeter rising, if the water sample flows smoothly, that will be considered normal. 5.3.7. Regulate the flux-limit valve of manual sampling, make the flowmeter displaying a flux about 500ml/min, and regulate the instrument valve to let the instrument start working. 5.4. Temperature overloading protection test for the electromagnetic valve 5.4.1. Sizing down the inlet flux of the cooling water (smaller the opening of the valve), watch the display of the temperature round detector, when exceeds the alarm temperature, alarms, and at the same time the electromagnetic valve starts working to cut off the flow of the sample water, that certifies the normality of temperature overloading protection, then sizing up the inlet flux of cooling water (bigger the opening of the valve), recover the normal working status. 5.4.2. Close the first valve, open the contamination-drain valve, the pressure of the water-flow system is reduced, open the water circuit which has been cut off by the replacement of the electromagnetic valve, then close the contamination-drain valve, open the first valve, recover the normal working status. When the decontamination system pressured, the above-mentioned operation could not open the electromagnetic valve. In case of that, close the flow-control valve on the manual sampling board, then go to the rear of the manual sampling board, loose the outlet running tie-in of the flow-control valve, discharging the air as well as the pressure, so then the electromagnetic valve will automatically open. 5.5. Cooling water pressure reducing alarm During the operation, when the inlet pressure of cooling water lower than 0.2MPa, alarms, at the same time, the electromagnetic valve closes all its actions, cuts off the water circuit, when things happened like that, find the reasons then repair it(reasons, see the descriptions in the malfunction analysis column), the cooling water recovers the normal working status. If the electromagnetic valve does not actionnot opened, do according to 5.4.2. 5.6. Debugging of the safe valve 5.6.1. The safe valve is set between the flux-control valve and the flowmeter, setting working pressure of 0.6MPa, acting pressure of 0.8MPa, when the flow circuit has overloading pressure, the safe valve automatically unloads. The safe valve is regulated well when leaving the factory, normally does not need regulating during the unit working. When it operates for a period of time or finds any malfunction, if need be, rechecks and regulates the safe valve as below: Connect pressure meters at the rear of the safe valve and between the connective pipes of the safe valve (range of 1MPa), close the water circuit to the instrument, regulate the manual sampling valve to raise the interior pressure of the sample water pipe to 0.60.8MPa. The safe valve starts to work, and be closed when the pressure lowers to 0.50.6MPa, then recover the normal working status. Otherwise, regulate the settings of the safe valve to the status above mentioned. Unload the pressure meter and install the safe valve. 5.7. Operation Stop First, close the first inlet valve of the sample water, then close the second inlet valve of the sample water and the contamination-drain valve, when the sample water stops flowing, close the inlet and outlet valve of cooling water, then close the power supply of the temperature detector. 5.8. Maintenance Open the contamination-drain valve timely, according to 5.3.4. The period of contamination drain is subject to the purity of the sample water and the operational experience. GRAND POWER 光大电力 Frequently Seen Malfunctions and Treatment Serial Number Division of malfunctions PhenomenonPossible reasonsTreatment advice (1) inlet pressure of cooling water is not enough 1. outlet pressure of the pump is lower Raise the pressure of the pump outlet (2) pressure difference between the inlet and outlet of cooling water (1) pressure of original inlet is lower (2) outlet pipe is block Raise the pressure of the pump inlet Dredge the pipes, enlarge the outlet valve I System of cooling water (3) flux of cooling water is not sufficient (1) outlet diameter pump is smaller (2) diameter of pipes are smaller (3) pipes or pump has leakage Enlarge the diameter of the pipes or the pump outlet, check the pump and pipes if leak (1) temperature of sample water is higher 1. temperature of cooling water is higher (2) cooling water is not sufficient (1) cooling water pipes blocked (2) pump or pipes of cooling water leaked (3) pressure difference between the inlet and outlet of cooling water is lower (4) inlet and outlet valves of cooling water not opened enough (5) filter net blocked (1) lower the temperature of cooling water (2) dredge the cooling water pipes (3) check the water pump and piping if leaks (4) increase the outlet water drainage (5) enlarge the opening of cooling water valves (6) clean the filter net 2. the flux of water is not sufficient or there is no sample water flux a) first, second high-pressure valves are not fully opened b) flowmeter, flux-control valve, flux-limit valve not opened enough c) temperature and pressure reductor blocked or dirty d) incoming pressure of sample water is not enough (1) enlarge the opening of the first and second high-pressure valves (2) reasonably enlarge the opening of the flowmeter, flux-control vlave and flux- limt valve (3)check the reason and dredge the pipes (4) chemical ceaning II System of sample water 3. sample water is not clear 1. pipe way is not clean 2. contamination drain is not completely 1. clean control 2. timely drain contamination (reasonably shorten the period of contamination drain) GRAND POWER 光大电力 Serial Number Division of malfunctions PhenomenonPossible reasonsTreatment advice III System of piping Inlet and outlet of cooling water and contacts leaked, system of electromagnetic valve leaked and low-pressure pipe contacts leaked (1) fastening cap loosed (2) sealing washer not well-positioned or damaged (1) fasten the screw caps (2) reseal or change the sealing washer 1. No alarm output (1) wrong setting of parameter (2) malfunction of round detector (3) heat resistance damaged (4) wiring off Reset Repair the detector Change Change the wires 2. alarms but not electromagnetic motion (1) wrong way wiring (2) winding burned off (3) diode damaged (4) action pole in the valve blocked Change the wiring Change the winding Change the diode Open and repair 3. electromagnetic cant open automatically after closed (1) higher pressure of the flow circuit (2) temperature of pipe way not reduced (3) spring blocked (1) open the contamination-drain valve, unload and reduce pressure (2) waiting for the time of temperature lowered (3) repair the spring and let it move freely 4. electromagnetic cant fully close after motion 1. flow circuit not clean with some dirt addicted 2. action pole in the valve blocked 3. sealing washer damaged 1. clean the flow circuit and the closing contact surface of the valve 2. uninstall and repair 3. change the sealing washer 5. safe valve does not move 1. sliding piece in the valve blocked 2. jaws of safe valve blocked 3. safe valve with too high pressure checked Uninstall and repair Clean pipes and the inlet Lower the pressure of spring (ordinarily not occured) 6. safe valve unclosed 1. seat of the valve not clean 2. spring damaged 3. needle surface of the valve damaged Clean the seat of the valve Change the spring Change the needle of valve IV Overloading Protection system for temperature and pressure 7. safe valve not closed enough Same as aboveSame as above GRAND POWER 光大电力 1. 135MW sampling points of water and steam and matching instruments Measurement meter value and flux (ml/min) Serial Number Sampling point Pressure (MPa) Tempe- Rature () MCCSCPHO2PO43-PNa (1) CondensatePump Outlet2.050 500300300250 (2) Deaerator Outlet0.9176 500250 (3)Econmizer Inlet15.24248 500300300 (4)Boiler Water, Left Side15.05343 500300300200 (5)Boiler Water, Right Side15.05343 500300300200 (6)Saturated Steam, Left Side15.05343 500300 (7) Saturated Steam, Right Side 15.05343 500300 (8) Superheated Steam, Left Side 13.8540 500100 (9) Superheated Steam, Right Side 13.8540 500100 (10)Reheated steam2.646540 500300 (11)Closed Cooling Water0.6442 500300300 (12) High Pressure Heater Drain 17248 500 (13)Low PressureHeater Drain2.0149.3 500 (14) Deaerator Water-tank Outlet 0.9176 500 (15) Boiler Continuous Drainage 15.85347 500 (16)Boiler Regular Drainage15.85347 500 (17)Make-up Water0.2 Regular Temperatur e 500300 Note: Sampling point; CC Sampling point through ion exchange pole; Changed by the valves of left or right side. GRAND POWER 光大电力 Operating Rules for chemical analysis of CXD water and steam Sampling Unit I. Preparation Before operates, check the valves of all points if they are closed, such as first high-pressure valve, second high-pressure valve, high-pressure contamination-drain valve and manual flux-regulate valve on the panel; check the screws if they are loosed, such as that of the high-pressure contacts on the unit (pipe joints of first/second class on the temperature and pressure reductor), cooling water piping, if need be, fasten the loosed. II. Cooling water Before operates, let the cooling water into operation with required condition. Requirements of the cooling water as below: 1. Inlet temperature of cooling water 35; 2. In/out pressure difference of cooling water should be not lower than 0.2MPa, (lower than 0.1MPa is definitely forbidden), calculated as inlet pressure outlet pressure (read from the pressure meters of inlet and outlet) 3. Flux of cooling water should reach the required amount. If In/out pressure difference of cooling water is eligible, the flux is satisfying. 4. After the normal working of the unit, the cooling water should not be stopped to prevent accident of persons and equipment. In order to prevent accident, clients should set a spare power supply for the temperature round detector, if need be, contact the manufacturer for detail information. III. Temperature round detector and electromagnetic valve As powers on, the temperature round detector shows temperatures of all points, alarms when pressure- loss, alarms when temperature overloading, electromagnetic valve working and some other functions. IV. Operation After finishes the above items, the unit could be started, according the procedure as blow: 1. Open the manual sampling valve, floater flowmeter valve on the panel of manual sampling to prevent the result of pressure increased of low-pressure piping, or leakage, damage of flow meter. Above two valves can be often kept opened even if the boiler is stopped working. 2. Open and close the high-pressure valves(first valve, second valve, contamination-drain valve) on t