收氟（Fluoride collection）

1、收 氟（Fluoride collection）Collecting fluorine, emptying, fluoride, steps:A; fluoride in air removal:To open a bottle of fluorine, fluorine fluorine gas let the bottle slowly out of about 5 seconds. Then the fluorine pipe fast connection in the air conditioning fluoride mouth, to tighten, this fluorine

2、 air tube out, air conditioning is to flow in fluoride. (emptying when dont drive too much fluoride bottles, gas will be open to the maximum when the fluoride)B received fluoride steps:A refrigeration state: the outdoor unit two connecting pipe valve with a wrench open lid. With six angle wrench 5,

3、into thin (high pressure valve) the valve port, the valve closed quickly, about 20 seconds after the coarse valve (low pressure) closed, and then shut down the power. This machine has received fluoride. So you can disassemble.Two, the installation time and open the valve emptying: as follows: after

4、the machine is fixed inside and outside,1. air conditioners connected, mainly to the inner and outer connection pipe are tight, attention must take a good, to prevent leakage of refrigerant.2. with the inner six angle switch to automatic air conditioning on normal working pressure valve (the valve o

5、pen), in six against the angle fluoride (with fluorine in the thimble mouth, low pressure on the inside of the gas) to run out of 10 seconds or so, not too long, so as not to run the snow too much. So you can make the air inside the pipe out. Then the high and low pressure valves are opened, the pow

6、er line on the inside and outside the machine can. Note: the connecting pipe is a copper disc, not dead corner, otherwise it will affect the flow of refrigerant, can not be caused by the cooling and heating. When you first remove fluorine, otherwise it will cause the leakage of fluorine.C fluoride s

7、teps:Let the air conditioning operation, fluoride in refrigeration condition; if the heating of the state will be required to pull wire four way valve; air conditioning refrigeration condition is that adding fluoride. Fluoride mouth in the thick tube above is low. Will use a wrench to unscrew the ca

8、p, the fluorine pipe connection, the fluoride bottle open, such as fluorine into the air conditioning system, refrigeration condition can fill 4MPa. As the saying goes with 4 pressure. The whole operation is in the running state of the air conditioning in the.The basis and method of accurate fluorid

9、ation1. quantitative fluoride: in three way valve technology export connected three-way valve, pressure gauge, fluoride, fluoride bottle hose or vacuum pump etc. Let f vacuum, slowly adding fluoride. Weighing measuring tool platform balance accurately, when the fluorine fluorine bottle to reduce the

10、 amount of air conditioning is equal to the nameplate on the standard plus fluoride, fluoride bottle valve closed.2.: the measured current is arranged on the air conditioning cooling or heating in high speed wind state (inverter air conditioner arranged in the running state) under operation, low pre

11、ssure valve opening process, while adding fluorine side observation on ammeter changes when the rated current is close to the air conditioner nameplate value, fluorine closed bottle valve. At this time, let the air conditioning continue to operate for a period of time, when the cooling condition at

12、room temperature close to 27 degrees centigrade or under the heating state at room temperature to 20 DEG C, and then consider the outdoor air temperature, the voltage level of the rated current and other factors, at the same time the amount of fine-tuning fluoride to reach the rated current value, a

13、ccurate and fluoride. The reason is because to fine-tuning the rated working current of air conditioning nameplate value is air-conditioning manufacturers in the following conditions: the test data of refrigeration state, the power supply voltage 220V or 380V high speed wind fan, indoor air temperat

14、ure is 27 degrees centigrade, outdoor air temperature of 35 DEG C; the heating state, the power supply voltage 220V or 380V fan speed the wind, the indoor air temperature is 20 degrees centigrade, outdoor air temperature of 7 DEG C. The practice is to fine tune the data: cooling state, the outdoor u

15、nit of air temperature is 35 DEG C as the standard, the outdoor temperature is increased or decreased every 1 degrees, increase or decrease the rated current value of 1.4%; under the heating state, the outdoor unit of air temperature is 7 DEG C as the standard, the outdoor temperature is increased o

16、r decreased every 1 DEG C increase or decrease the rated current value of 1%; the cooling or heating condition to the rated supply voltage of 220V or 380V as the standard,The power supply voltage of each increase or decrease of 1V, reduce or increase the rated current value: a single-phase 0.025A, 1

17、.5 horsepower 0.025A x 1.5, 2 x 2 0.025A horse, horse 3 0.025A * 3 0.025A * 3/3; three-phase 3 horsepower, 5 horsepower 0.025A * 5/3, 0.025A * 10/3 10.3. pressure measurement method: air conditioning refrigeration in high speed wind conditions (winter heating need fluoride, air-conditioning will be

18、arranged in a forced cooling state or will room temperature sensor placed in 27 degrees around the Xia Tian temperature simulation of warm water, let the air conditioning in the cooling condition) operates at low pressure valve technology, while adding fluorine side observation of low pressure vacuu

19、m pressure gauge, when the pressure in the 0.49MPa (Xia Tian) or 0.25MPa (winter), offFluorine valve closed bottle. Consider the outdoor unit of air temperature, indoor cooling load factors such as low pressure, volume and pressure Freon fine-tuning, accurate fluoride. The reason is because of the l

20、ow pressure fine-tuning and indoor cooling load is proportional to the cooling load is larger, the higher the pressure, the lower the contrary; fluoride mouth and process near the pipeline, because installed outdoors, the pressure and evaporation temperature affected by outside temperature, indoor h

21、eat exchanger, the actual pressure and evaporation temperature of summer some of the high, low in winter. Practice in high speed wind fan, indoor temperature is 27 DEG C, low pressure data are shown in the schedule.4. observation method: air conditioning set running in high speed wind cooling or hea

22、ting condition, temperature and fluoride amount accurately when the indoor heat exchanger inlet and outlet 10cm is greater than 12 DEG C when refrigeration, heating is greater than 16 DEG C; refrigeration, indoor heat exchanger, evaporation condensation all sound uniformly low, outdoor the valve of

23、dew and condensation at summer continuously, the indoor heat exchanger and the capillary connection has no frost dew; when heating, the indoor heat exchanger wall temperature greater than 40 DEG C. In actual maintenance, because the accuracy of frequency conversion air conditioning fluoridation requ

24、irement is very high, or because of the fixed frequency air-conditioning refrigeration piping system for vacuum, should adopt the quantitative methods of fluoride. If the pipeline system need to add fluoride, should be used to measure the current and measuring gauge by both observation method.In mos

25、t of the air suction pipe of the compressor to a repair welding process pipe for fluoride; or from the compressor high-pressure process control to add fluorine. But in practice, these two kinds of fluoridation methods have some shortcomings, in front of a fluoride too slow and unsafe, the compressor

26、 is easy to produce liquid hammer; after a fluoride bottle pressure is large enough, it is difficult to add fluoride. The maintenance practice for many years, take the tube to add fluoride by window type air conditioner filter process, fluoride fast, smooth, safe and accurate.A refrigeration pipelin

27、e for oil pipeline, which has a window type air conditioner leak, the specific steps are as follows:1. a short cut to filter process pipe, a one-way valve (refrigeration equipment stores, about 2 yuan) into the remaining process about l0mm tube welding; or to a length of about 200mm, the diameter of

28、 4mm copper tube, one end is inserted into the remaining in the process pipe welding, connection the other end is welded with three brass valve repair.2. will the refrigeration pipeline leak after welding, and open the compressor and vacuum pump, the pipe in air while circulating away, to speed up t

29、he vacuum.3. and three bottles of fluorine connection maintenance valve and connecting pipe in the air. In the air conditioning shutdown, fluoride bottle inverted liquid fluoride, and measuring tool platform balance accurate weighing, when adding fluoride to reduce the amount of fluorine in the bott

30、le is equal to the rated air conditioning fluoride, fluoride bottle valve closed immediately, so as to avoid excessive fluoride.From the process on the filter tube in liquid fluoride, as long as the vacuum piping system is qualified, fluoridation very fast. In general, fluoride amount can be three m

31、inutes to reach the rated filling quantity of air conditioner.Two, for window type air conditioner has been used for many years, the cooling effect of bias, but no pipeline leak, the specific steps are as follows:OneWith the saturation pressure of the pressure meter can detect and record the fluorid

32、e bottle of fluorine in the current environment temperature values, for reference.2. connection valve, three way valve repair thorn and fluoride bottle, and the connection pipe in air discharge.3. air conditioning in shutdown, the first stab into the filter process valve sleeve pipe, rotating the ha

33、ndle through wall pipe, then unscrew the bottle, three fluorine valve and valve repair will sting, adding a small amount of fluoride (fluoride bottle inverted control of fluoride, ibid.) then close three maintenance valve.4. first boot running for 10 minutes, and then observe the pressure of three p

34、ass valve on the pressure gauge maintenance value (high pressure), if the schedule is shown, that in the current environment temperature, saturation pressure of fluorine in the bottle of fluorine (table pressure value) and operation boot when the pressure gauge pressure (high pressure force) is corr

35、espondence between the said fluoride accurately. For example: the environment temperature is 3 DEG C, the saturation pressure of fluorine in the bottle of fluorine is 1.19MPa, high pressure corresponding to 1.67MPa, then adding fluoride accurately.Compressor quality measurement:1. in the above 3 com

36、pressor terminals, including S, M, C, S which is the start winding, M is running, C is the common end of winding2. the multimeter is used to measure the resistance between SC and MC, of which the value add up to MS between the resistance is normal, such as the SC between the resistance between the 5

37、 in Europe, the value of MC is 3.5 in Europe, then MS between 8.5 euro (resistance is allowed to have a littleThe deviation, but not much). If the offset resistance is too large, no resistance, or between the 3 then the compressor is certainly bad!3. multimeter with some time, it is normal, but the

38、internal short-circuit compressor is not out of the measurement. The easiest way is to use a multimeter, if there is electricity, if the electricity does not start, if you can replace a starting powerVolume (50UF), if it does not start with the words, it is a bad compressor!Compressor fault: 1, coil

39、 shorted to ground, check the terminals and the grounding resistance, short circuit is connected. 2, open coil is compressor burned, check the wiring between the column without resistance. 3, compressor cylinder, large starting current, with the dull sound. 4, the efficiency decreased.The first meas

40、urement of windings and the shell is insulated, then measuring the common terminal C and winding if for 20 euro, determined toThe running winding M, C and winding if for 30 euro, determined to start winding S, then start winding and winding operationIs the sum of 50 euros, SM=SC+MC. No matter the en

41、d of outer shell and infinite resistance.The general is the starting winding resistance is greater than the running winding resistance.The resistance between the three terminals is usually ten which has two ohm resistance and another resistance, insulation resistance with the best shake table to mea

42、sure, to see whether the shell of short circuit.The air conditioning compressor damage of the capacitor, is breakdown, or smaller capacity.If the capacitor breakdown, with a multimeter R * 1K gear measurement, the resistance is small or 0. Capacity becomes small, and only a capacitor is good, see R

43、* 1K file when measuring the size of the hand swing judge (charging current size).A look at the two test! A capacitance has no change for the general air conditioning is twenty-five micro method! As for the breakdown of eight yuan to buy a new! Noting that his attention was three not to plug plug pl

44、ug anti or compressor does not start to change! The two is to useDigital multimeter capacitor file 200 direct measurement if 0.01 that if only a dozen shows serious leakage breakdown should be replaced!To see you is the air conditioning compressor frequency or speed, if the resistance measurement can be fixed according to the above mentioned method, if the conversion between the three and 22 lines of the resistance is the same, if not the same (allowable deviatio