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Variable concentrations of air-conditioning system capacity adjustment mechanism and pilot study

Line 14 of a moxibustion Pavilion ● <Towel Pavilion gown bladder violence and composition of the condensation pressure in Figure 5 the relationship between the concentration and composition of the cooling capacity in Figure 6 the relationship between the concentration of power and composition of the compressor in Figure 7 the relationship between the concentration of 2. Close all control valves distillation system, the main circulatory system and the distillation system 2004, 2 ring system. 3. Adjusting the concentration of the system. First, open the valve D, E, ready to start the distillation system. If the increase in the main circulation system of high boiling point working fluid component, open the solenoid valve A and B, then the Lord will reduce the load on the circulatory system; if open the solenoid valve A and C, the main circulatory system works to increase the quality of the low boiling components The system load will increase. Turn about 40 minutes after the distillation system, turn off all control valves distillation system, the concentration adjusted to complete. 4. Change the condenser circulating water flow, and adjust the heating chamber A load, so the circulating water temperature and A room temperature of a given condition. In the adjustment process, every 1O minutes of recording time data (reference value). According to national standard GB7725-87 requirements: A room dry bulb temperature fluctuation should be less than ± 0.5cI =, wet bulb temperature fluctuation less than ± 0.3cI =. Import and export of recycled water temperature maintained at ± 1cI = range. System operation to stable condition when the start recording data. Figure 47 shows the R22/R142b and R32/R124 test results. According to the test measured the import and export of capillary pressure and temperature values can be obtained by LKP equation of the concentration of the working fluid composition. Figures 3 and 4 measured the evaporation pressure, condensing pressure and mixture composition of the relationship between the concentration can be seen with the increase of low-boiling components, evaporating pressure and condensing pressure is increased. Figure 5 shows the measured values of air conditioner cooling capacity and the relationship between the concentration of the working fluid can be seen when the system is a low boiling point working fluid loop group element increases, the cooling capacity is increased, with the theoretical analysis is consistent with This not only verify the distillation system has changed Circulation Elements of the role of quality, but also proved that the regulation of variable capacity modulation effect of the concentration. Similarly, Figure 6 also shows the compressor power and the relationship between concentration, the figure shows the results of group elements with low boiling point increases, the compressor power consumption is increased. Variable Conditions 4.2 Performance Test and Analysis of steady-state tests to verify the characteristics of the system to follow the environmental changes, by changing test conditions (regulating the circulating water flow to simulate changes in the environment) method, respectively, and measure the mixture R22/R142b pure t122 in the same working conditions under the steady-state performance of the circulatory system can be a variable design performance parameters. Test methods are as follows: 1. First of all arrangements for test conditions, by adjusting the condenser circulating water flow rate and inlet temperature to simulate the external environment, the trials of adjusting the circulating water flow using only way to change the test conditions. 2. t122 variable steady-state test conditions. Distillation system at this time all the control valves is closed, the system filling pure t122, start the heat balance of all the control room, measuring equipment, running air-conditioning system, change the circulating water flow, when the system reaches a steady condition, the recording system at this time cooling capacity, compressor power consumption. The same method can be measured in other conditions of the steady-state system cooling capacity and power consumption. 3. R22/R142b variable steady-state test conditions. First of all valves closed distillation system, start the air conditioning system, test cycle by changing the way water flow to simulate the changes in the external environment, and then open the distillation system control valves. Adjustment method is given conditions, when the external load decreases, reducing the condenser circulating water flow and increase the circulating water inlet and outlet temperature difference (temperature due to its imports remained unchanged, in fact, increased circulating water outlet temperature) , then open valve A distillation system and B, the main circulatory system to increase the working fluid in the concentration of high boiling point, reduce the system's cooling capacity, the system's cooling capacity output load change caused by environmental change is consistent; if the external load increases when the opposite is true, then open the solenoid valve A distillation system, and C, the main circulatory system to increase the low boiling components, increasing the system's cooling capacity, which still need to constantly adjust the circulating water flow to ensure the stable operation of the system to normal operating conditions given. Stable condition in the system after the performance testing. Repeat the above steps, followed by stable conditions can be measured by the system cooling capacity and power consumption, and finally obtained the coefficient of performance. ● moxibustion is a lip whore Figure 8 Measured cooling capacity and the relationship between the circulating water temperature rise observed in Figure 9 and the compressor power relationship between the circulating water temperature rise of a 15 -

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