TW201215823A - Water-side facility energy-saving control method of air conditioner system - Google Patents

Abstract

The present invention relates to a water-side facility energy-saving control method of air conditioner system, which carries out energy-saving control for water-side facility of an air conditioner system. The water-side facility of the air conditioner system comprises at least a chiller, at least a cooling tower, and a plurality of water pumps. The method comprises: regressive analysis of power consumption performance of chiller; regressive analysis of performance of the cooling tower; regressive analysis of operation performance of the water pumps; establishment of system and numeral optimum computation; and effecting control according to each operation parameter and effecting data feedback and verification for the data of controlled operation. With the energy-saving control method according to the present invention, regressive analysis model and optimized algorithm are applied to establish energy-saving control model for water-side facility of air conditioner system, which also features the advantages of taking overall energy consumption into consideration, automatic feedback control, autonomous correction coefficient, and requiring separate development of hardware facility.

Description

201215823 VI. Description of the Invention: [Technical Field] The present invention relates to an energy-saving control method for a water-side device of an air-conditioning system, and particularly relates to a water-side device such as an ice water main engine, a cooling water tower, and a water pump, which is optimized The algorithm calculates the operating parameters of each device in the optimal consumption state of the overall air conditioning system, and then controls the operating state of each device to obtain a control method for improving the overall energy saving effect. Also in [prior art] 3 in the current office buildings, department stores, factories, stores, stations, airports, restaurants and other public places, the operation of the ice water host system 4 Μ '工调糸' almost all machines According to statistics, in the air conditioning system, the electricity consumption is about _ _ _ _ _ _ _ m $ electricity when the slave building A building total electricity consumption of 100, and a new set For example, the tens of millions of Taiwanese ice water air-conditioning systems can be used for up to 20 years under appropriate maintenance. The estimated electricity consumption is about NT$-Wei/------- Ten times. & ', the ice water air conditioning system due to the large-scale work _ & standby system power consumption phase of the environment is also the highest proportion of electricity, large, accounting for office? Can produce significant power-saving effect, and save the user; = Control expenditure, this move is also in line with the environmental protection trend of energy saving and carbon reduction. According to the statistics of Taiwan's energy statistics, Hao's air-conditioning chillers have more than three ', no' government departments, and the number of air-conditioning chillers installed in the government departments, _^ enterprises and public places according to industry statistics, at least more than ^ There are clear statistics, but based on the above, the statistics of the official or industry 201215823 sector show that the number of air-conditioning hosts in the public and private sectors is not significant; plus the electricity consumption is extremely impressive, so if it can This energy-saving control will yield excellent results. According to research, large-scale cold; East air-conditioning system power consumption analysis, air side or load side equipment accounted for about 20%, ice water transport equipment accounted for about 20% 'ice water host equipment accounted for about 20% Sixty, because the electricity consumption of water-side equipment in air-conditioning systems accounts for about 80% of the total system. Therefore, if energy-saving equipment is used for these water-side equipments (4), it can be directly targeted for key control. effect. In addition, the water side equipment of the chiller air-conditioning system mainly includes: cold water towers and water pumps. The current situation in the relevant industry is that the respective invested and professional manufacturers, the manufacturers have invested in the improvement of equipment efficiency for energy saving g. However, the efficiency improvement of individual materials does not mean that the overall air conditioning _ "optimization of the second two-tone system in use and energy-saving control of the in-situ factory 芮 °" especially because the various equipment from different Iraqi practice There is indeed a design on the ,, so the chiller air conditioning system silk problem: noisy problems, after preliminary analysis 'counted the following month 1J domestic air conditioning system, whether it is manually adjusted to enter this project, the big change is not Manual T dynamic air conditioning load and external force can be kept at any time; Second, the ice water host group does not have a real load distribution for the system, or only the average ten-nose to switch the ice water host; Or 201215823 to use the system load to do power consumption (household) minimization numerical analysis to allocate the unloading amount of η hosts (household H·)' and control due to the unloading amount of each brand Complex situations without the practice of automation, such as η minPsys=^Pchi /=1 st- p:h.i = a〇.i + au X PLR. + a2i X PLR^

Qsys ~ Σ i x Qch j /=1 where aO, a, and a2 are regression adaptation coefficients; or, the host computer/group load combination table is used as a comparison to switch the host operation. However, the load dynamics cannot be manually manipulated and rigorously practiced. Moreover, this mode is only used for the main ice water energy demand component. 4. The ice water main unit is the largest power device, and the cooling water tower is the performance. The equipment is 'have a significant energy impact due to dynamic changes in external air conditions. At present, there is a fixed cooling tower fan speed running, this method can only eliminate the power consumption caused by over specified design (over specified design); or try to get the lowest possible approach temperature with the wet bulb temperature, this method causes the host to use electricity ® reduces but the cooling tower power is increased, resulting in no reduction in synthetic electricity consumption; or the regression power fitting with the ice water host performance curve and the external gas wet bulb temperature condition to calculate the minimum power consumption, However, this method does not have the group operation analysis control of the performance characteristics of different brand equipments, in order to obtain the minimum power consumption of the real overall operation; Fifth, the ice water pump is used in the ice water mainframe, and it is often installed on the differential pressure meter. Also at the most empty! Weekly equipment such as Air Handling Unit (AHU), Make-up Air Unit (MAU), etc., try to use the fixed setting 201215823 differential pressure to match the inverter to reduce the load of the pump, often the setting value is too small. Can not meet the actual dynamic load demand and complain, in order to avoid such problems and increase the set value and generate energy-saving results discount; 6, cooling water pump power line system layout has a big impact, as much as ice pump power, use frequency converter In combination with attempts to reduce power consumption, the existence of the system's clean water head cannot be substantially energy-saving without careful deduction, and may eliminate the power consumption caused by excessive design (seven specified design); Individual use of high-efficiency equipment, although individual equipment achieves minimum energy consumption, but under the operation of other equipment, it may not be able to achieve the lowest overall energy consumption; v lack of compatibility, this source management system, only independently on individual equipment Power consumption analysis and management control, such as poorly maintained performance changes or aging (Aging) are also not found on management systems, such as c〇p do not host it can be seen, but the overall ice water (ChiUer plant) should c〇p trend is an early indicator of management (performance Index in leading). Therefore, if the relevant researchers can develop an energy-saving control method for the water-side equipment of the air-conditioning system, the problem caused by the operation of the above-mentioned air-conditioning system can be solved, and the energy-saving and carbon-reduction trend can be further improved and the integrity of the air-conditioning system can be obtained. The energy-saving control effect, that is, the invention of the overall c〇p, leads to the energy-saving invention. SUMMARY OF THE INVENTION In order to solve the above-mentioned problem of the energy-saving control of the water-side device of the present air-conditioning system, the present inventors have devoted themselves to the development of a water-side device energy-saving control method for an air-conditioning system, and finally developed the present invention. 201215823 The main purpose of the present invention is to provide an energy-saving control method for a water-side device of an air-conditioning system, in particular to a water-side device such as an ice water host, a cooling water tower, a water pump, etc., and an optimal algorithm for calculating each device in the overall air-conditioning system. The operating parameters in the state of energy consumption, and then control the operating state of each device to obtain an energy-saving control method for the water-side equipment of the air-conditioning system that optimizes the overall energy-saving effect. For the purpose of the above, the water-side equipment energy-saving control method of the air-conditioning system of the present invention is an instant automatic power-saving control for the water-side equipment of the air-conditioning system, and an unloading and switching (Staging) of the ice water host, the water-side equipment of the air-conditioning system includes At least one ice water host, at least one cooling water tower and a plurality of water pumps' the energy saving control method includes: Step A: regression analysis of the power consumption performance of the ice water host, power consumption unloading rate of the ice water host, cooling water temperature, and ice water outlet temperature The function of the three variables, using the parameter of the blessing as the basis of the power consumption calculation, drawing and (4) the data line or the relevant parameters provided by the machine manufacturer, establishing the regression equation, and correcting and calculating the Yanhai ice water host in the actual non- The power consumption value under nominal operating conditions; Step B: Regression analysis of cooling water tower performance, establish the cooling water outside air: heat transfer and mass transfer of the Michael equation (Μ_-〇η), by which; Transfer the unit number (NTU) and the water-gas ratio (6)G) of the commodity design data, and then calculate the coefficient and index in the equation; 〇Step C ··Water pump running performance Regression ^ ^ ^ ^ ^ ^ ^ Lidi gentleman you fight - * τ knife to take the pump operation data case, know the equation, and then according to the regression curve as water ^ 1 ώ ^ (QH) Portuguese reading, to ^ line The coefficients are obtained by regression calculation, and the new 201215823 speed is obtained through the system operation line and the similar law, and the inverter operation command is issued. Step D: System establishment and numerical optimization Calculation, draw the power consumption of the ice water host, regression analysis, cooling tower performance regression analysis, pump run performance regression analysis data into the system minimum total power consumption function, to analyze and obtain the system in the case of the minimum power consumption Item operation parameters; Step E: Control according to each operation parameter, and perform data feedback and store operation data database after the control operation data. Through the above method, the following advantages can be obtained in the energy-saving control of the water-side equipment of the air-conditioning system: 1. The method of the invention can be combined with the energy-saving control device and the software to achieve the efficiency of the automatic operation and reduce the input and management of the operation manpower. First, according to the actual load, the optimal unloading mode can be used to analyze and distribute the unloading amount of each ice water host to perform high-efficiency operation. 3. Establish the performance mathematical mode of the system, including the ice water main unit, cooling water tower and water pump. Performance analysis, and according to the equipment refrigeration load, external gas conditions and depreciation balance control 'to calculate the operating parameters of each device to achieve the minimum total system power consumption; Fourth, develop energy management system from the perspective of integration, in addition to individual equipment In addition to monitoring, recording and analysis of power consumption, it is also possible to integrate the performance coefficient of the total equipment and the trend of total energy consumption, which can be applied to the early management indicators. Therefore, the energy-saving control method for the water-side equipment of the air-conditioning system of the present invention, combined with the related equipment currently performing energy-saving control operations on the market, can solve the shortcomings and defects of the current air-conditioning system in energy-saving control, and it is not necessary to separately develop the 201215823 hardware preparation. The convenience and feasibility of the practical operation can be improved, and the energy-saving efficiency of the air-conditioning system can be improved by the control method, and the novelty and the progress are undoubted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to make the person skilled in the art understand the object of the present invention, the preferred embodiments of the present invention will be described in detail below with reference to the drawings.

Please refer to the figure-picture, the air-saving (four) water-side equipment energy-saving control method of the present invention is an instant automatic power-saving control for the water-side equipment of the air-conditioning system, and the unloading and switching (Staging) of the ice water host, the air-conditioning system water The side device comprises at least one ice water host and at least a water pump. The energy saving control method comprises: a cooling water tower and a plurality of steps A (11): regression analysis of the power consumption performance of the ice water host, and the power consumption of the ice water host is an unloading rate and cooling The function of water temperature and ice water temperature three variables, using the nominal parameters as the basis for power consumption calculation, #取取 and screening database data or relevant parameters provided by the ice water host manufacturer to establish regression adaptation (Caf (four) equation' And correct and calculate the power consumption value of the ice water host in the actual non-nominal operating state; " Step B (12): regression analysis of the cooling water tower performance to establish the heat transfer and mass transfer of the cooling water and the external gas Equation (10) is called Equat, and the equation of the heat transfer unit (Ντυ) and the water-gas ratio ^) are calculated by the Michael equation to calculate the equation (4). According to the regression analysis of sex 4 qumii performance, the regression equation of fruit transport was established, and then the flow curve [head] energy curve was used as the performance curve of water chestnut, and the number of 201215823 was obtained by regression calculation. Through the system operation line and similar law, the new speed is obtained under the established flow demand, and then the inverter running command is issued; Step D (1 4): system establishment and numerical optimization calculation, taking the regression of the power consumption performance of the ice water host Analysis, cooling tower performance regression analysis, pump running performance regression analysis data into the air conditioning system minimum total power consumption function to analyze and obtain the operating parameters of the system in the case of minimum power consumption; Step E (15): Control according to various operating parameters, and carry out data feedback and storage operation database of the controlled operation data. Please refer to the first and second figures, the following is further explained for step A (11), the step A ( Ll) further includes: Step Al (111). Using the nominal parameters as the basis for power consumption calculation, and extracting and selecting data related parameters of the database data 'where The number includes the nominal and actual operating evaporator water temperature, the condenser inlet water temperature 'load rate and power consumption; Step A2 (11 2): the full capacity of the ice water main engine and the power demand with the running ice water outlet temperature, The temperature of the cooling water entering the water and the amount of unloading change. No ice water main unit can operate under the condition of designing the nominal parameters. Therefore, the relevant correction coefficient must be used for correction; by establishing the regression equation and calculating the coefficient of each regression equation. , wherein the regression equation includes:

Ecap=QF,0^QFn Five"Μ is a function of the ice water outlet temperature and the cooling water temperature deviating from the nominal temperature value, calculated as a quadratic equation as follows: /(ΔΤ,,ΔΤ2) = α〇+αχΔΆ +〇 2Δτ2 +α^ +α^ +α^ΔΤΔΤ^ +α()ΔΤ2ΔΤ2 10 201215823 where 'five cap is the correction coefficient of full-load refrigeration capacity; 込. The full-load refrigeration capacity at the actual operating temperature; β/·-+" is the nominal cold; East capacity; the difference between the nominal evaporator outlet water temperature and the actual evaporator outlet water temperature of the ice water host; I is the difference between the nominal condenser inlet water temperature and the actual condenser inlet water temperature of the ice water host;

Ep〇w - Pf ·〇 ′ Pp·η Five is the function of the ice water outlet temperature and the cooling water temperature deviating from the nominal temperature value, calculated as a quadratic equation as follows:

Epow = f(ATx , ΔΤ2 )^b〇+ b[AT, + b2ATx2 + b3AT2 + bAAT} + b5ATxAT2 + where five is the power factor under the non-nominal full-load freezing capacity; The total load power consumption at the actual operating temperature; the nominal full load power consumption; the difference between the nominal evaporator outlet water temperature and the actual evaporator outlet water temperature of the ice water host; ... is called the nominal condenser The difference between the inlet water temperature and the actual condenser inlet water temperature of the ice water host; E-partial = Ppartial. PF 〇fiparnd is a function of the unloading rate and is calculated as a quadratic equation as follows. Epartial = f(PLR) = Ctf+ c, xPiR -\- c 2 x PL R2 where 'Eparna/ is the power consumption ratio of the partial load; 201215823 corpse pari/fl/.o is the power consumption of the partial load; corpse F. For non-nickname actual full-load power consumption; ΡΛΛ is the unloading rate; PLR=Qch^QF〇= Qch^(QF.nxEcap); 2d is the actual running refrigeration capacity of the ice machine; endurance is the full-load power consumption under the nominal state Step; Step A3 (113): According to the actual operation data, the following formula corrects and calculates the power consumption value in the operating state ^*ch ~ E c ap^· E poyv^· E part iaiX P p. n where A is The consumption value of the ice water host in the running state; Step A4 (114): verify that each regression adaptation coefficient is statistically verified to confirm its validity, otherwise return to step A丨(丨丨丨); Step A(1)) can save the operation data base according to the actual measurement value of each parameter at a predetermined time π, and perform self-correction coefficient action on the coefficients of each regression equation according to the data base, and instantly update each regression equation to improve The power consumption performance of the ice water host in this step Α(9) is returned to the reliability; please refer to the first and third figures, the following is further explained in step B (12). The step B (12) further includes: , step B1 (121): Establishing the Michael equation for the heat transfer and f transfer of cooling water and external air Merkel Equation)

KVL

NTU f2 C〇Γ ~^-dt h hf-ha 12 201215823 where NTU is the number of heat transfer units; is the characteristic value of the cooling tower; is the specific heat value of the cooling water; Y is the Enthalpy value of the water surface of the water droplet;烚 is the water temperature in the wet air; ί is the water temperature in the water tower; Step Β 2 (122): The relevant parameters are taken from the database and substituted into the equation, where 'this parameter includes the inlet and outlet water of the cooling tower / the temperature of the Michael dry wet bulb, cooling The circulating water volume of the water tower and the air flow rate. External gas step Β 3 (123): The numerical value of the value of each set of data is obtained by numerical integration method. In this embodiment, the trapezoidal number is used: the transfer order is used; Perform the following operational steps B4 (124): Sexual relations under the premise of calorific value balance

KvL-cmn where, must be the cooling tower characteristic value; % is the water-gas ratio; C, -« is the coefficient obtained by the test and the phase step B5 (125): the establishment number; the matching data table of wn/%; Step B6 (126): Regression solves c and the value. ‘C (13) Further Please refer to the first and fourth figures. The following is for the step month. The step C (13) further includes: 13 201215823 Stream 2 ==::=::=

Hd =αιΩ〇+aiQ〇+a〇..........(1) where ' /f〇 is the design head; what is the design flow; step c2(u2).m^ set the special course and design flow The design and operation of the water pump and the matching system are superb. The static head is:: If there is a static value,;,...He +fan' and the step C3 (133) is obtained: Get the mM phase ^ / see % Feedback of the instantaneous differential pressure data ("P) and water ' ' Ί) 'the operating frequency (4) and the nominal frequency ratio is the speed ratio (four), and the fruit pressure difference (four) is equal to the water system water head (8); Step C4 (134): The law of similarity + / 7 - ^ (1) is the pump flow g = : fll ~ soil 2a2 ' where ' 2 is the instantaneous flow, that is, the system demand water; Step C5 (U5): will be "C1 (131) α and the value obtained in step C3 (133) °2, 〇 ', water and square, ^, data Η, % generation step C4 (134) X pump square 求 instant flow 0; C6(10)^(4)...called cut 35)) (10), substituting step / ^ sudden meaning 'required //, value; step C7 (137): construct another water-filled equation 201215823 with similar law and step C 1 ( 1 3 1) , 〇|, &, step (5 (1 35), 0, step C6 (136), then, enter the pump equation to find the new speed ratio, and then seek a new Motor running frequency; Step C8 (138). The water spring drive motor inverter running command is issued at the new motor running frequency. Please refer to the first and fifth figures. The following is further explained for step D (14), step D (14) Further includes: Step D1 (141): Retrieval analysis of power consumption performance of ice water host, regression analysis of cooling tower performance, regression analysis of pump operation performance, and minimum total power consumption function of air conditioning system mitl' Pkw + Ppj +PcLl) /=1 /, medium, 4 is the function of minimizing the total power consumption value of the air-conditioning chilled water plant system; A is the power consumption value of the ice water main unit; 弋 is the energy consumption value of the fruit; 々π々π is the cold power consumption value ; ζ · subscript, for each chiller, pump, cooling tower limit chromium D2 042). According to the air conditioning system architecture to establish the total power consumption of the phase limit conditions, the constraints include: into the second = host cold beam load absorption The heat and input work and the heat (4) must generate heat equal to the cooling tower The heat taken away; 15 201215823 2 ·...The value of the transfer unit is equal to the running characteristic value of the cooling tower; 3. The sum of the freezing energy provided by the host of the ice water must be equal to the cold demand of the air conditioning system; The ice water main engine load unloading rate, ice water and cooling water flow, and ice water and water temperature must be within the normal operating range. This range complies with the commodity regulations. 巳 Each load unloading rate exceeds the allowable range will promote the addition and subtraction (string); 5 _The pump runs within the normal design operation range. This range complies with the commodity specification φ, and the range is out of range to promote the addition and subtraction. 6: The cold water tower windmill runs within the normal operating range, this range complies with the commodity specification, and the range is extended to promote the addition and subtraction; 7. The outlet water temperature of the cold water tower is higher than the critical value of the external wet bulb temperature by 3 degrees Celsius', that is, the approaching temperature is greater than 3 degrees; 8. The cooling water volume is equal to the ice water main engine cold load, the wheel manpower and the cooling water spring loss The sum of the work is divided by the product of the specific heat of the water and the maximum water temperature; the cooling water quantity must not be less than the minimum flow allowed by the minimum ice water host. Step D3 (143): Take ice water, human water temperature and flow rate, calculate the air conditioning load by the conversion of the frozen tonnage®, freeze the tons of heat = ice water flow QX ice water density ρ χ ice water effluent temperature difference χ ice level Comparison

Cp ; Step D4 (144)·· Assume the cooling fan material, the reading value analysis minimization calculation method calculates the minimum total power consumption function of the air conditioning system by the function of step m and the limiting conditions of step D2 and step D3, and obtains each ice water The unloading value of the main unit, the cooling water inlet and outlet temperature, the fruit speed and the total power consumption value; 16 201215823 Step D5 (145): The calculation results of the relative cooling water temperature under different cooling tower fan speeds are established as data sheets to make the electric quantity For the secondary function of the cooling water temperature 7 'differentiate this function, the cooling water temperature operating parameter of the lowest total system braking value can be obtained and converted to the temperature control reset command. According to the above, the water-side equipment energy-saving control method of the air-conditioning system of the present invention can be used for external operation measuring devices such as an electric meter, a thermometer, a pressure gauge, a flow meter, and an external temperature meter. Data, by which the regression analysis and calculation of the power consumption performance of each device are performed, and various regression adaptation coefficients and various values required for constructing the system model are obtained, and then the calculation of the total power consumption of the overall air conditioning system is minimized. The operating parameters of each device are obtained, and the control commands are issued according to the respective operating parameters, so that the overall air conditioning system can obtain the performance of minimizing the overall power consumption under the control of the water-saving energy-saving control method of the air-conditioning system of the present invention. In addition, in the control process of the water-side equipment energy-saving control method of the air-conditioning system of the present invention, the coefficients of the regression analysis of the power consumption performance of each equipment are automatically corrected according to the actual operation state of each equipment in a predetermined period. Action, in order to update the regression model of each device according to the actual operating state of the device, and further calculate the operating parameters according to the updated regression model, thereby making the issued control command closer to the continuous Operational conditions, thereby improving the efficiency of energy conservation control. Therefore, by the energy-saving control method for the water-side equipment of the air-conditioning system of the present invention, the equipment such as the ice water main engine, the cooling water tower, the water pump, and the like can be controlled, and the entire system consumes the cost of the test, and the optimized algorithm is used to calculate the overall equipment. The operating parameters of the air-conditioning system under the optimal energy consumption state, that is, the calculation of the overall air 17 201215823 adjustment of the energy consumption of the operation of the minimization of the control of the Qing dynasty to control the equipment automatically control the air conditioning system load requirements The operation of the most energy-saving material m is carried out, but the preferred embodiment of the present invention is not limited to the scope of the present invention; therefore, according to the invention, the patent and the invention specification are The simple equivalent changes and modifications made by $ shall remain within the scope of the patent of the present invention. [Simple description of the drawings] The first figure is a flow chart of the method for controlling the energy saving of the water side equipment of the air conditioning system of the present invention. The second figure is a flow chart of the detailed method of the step A of the water-side equipment energy-saving control method of the air-conditioning system of the present invention. The second figure is a flow chart of the detailed method of the step B of the water-side equipment energy-saving control method of the air-conditioning system of the present invention. The fourth figure is a flow chart of the detailed method of the step C of the water-side equipment energy-saving control method of the air-conditioning system of the present invention. The fifth figure is a flow chart of the detailed method of the step D of the water side s and the control method of the air conditioning system of the present invention. [Explanation of main component symbols] (11) Step A (11丨) Step A1 (112) Step A2 (113) Step A3 (114) Step A4

(12) Step B 18 201215823 (121) Step B1 (122) Step B2 (123) Step B3 (124) Step B4 (125) Step B5 (126) Step B6

(13) Step C (1 3 1) Step C 1 # (132)Step C2 (133) Step C3 (134) Step C4 (135) Step C5 (136) Step C6 (137) Step C7 (138) Step C8

(14) Step D • ( 1 4 1) Step D 1 (142) Step D2 (143) Step D3 (144) Step D4 (145) Step D5

(15) Step E

Claims (1)

201215823 VII. Patent application scope: 1 ' An energy-saving control method for water-side equipment of air-conditioning system, which is an instant automatic automation energy-saving control for water-side equipment of air-conditioning system and an unloading and switching (Staging) of ice water main equipment, water-side equipment of the air-conditioning system The utility model comprises at least one ice water host, at least one cooling water tower and a plurality of water pumps. The energy saving control method comprises the following steps: Step A: regression analysis of the power consumption performance of the ice water host, the power consumption of the ice water host is the unloading rate, the cooling water temperature and the ice water. The function of the three variables of the outlet water temperature, using the standard % parameter as the basis for power consumption calculation, extracting and screening the database data or relevant parameters provided by the ice water host manufacturer, establishing a regression equation, and correcting and calculating the actual implementation of the ice water host. The power consumption value in the non-nominal operating state; Step B: Regression analysis of the cooling water tower performance 'Merkel Equati〇n, which establishes the heat transfer and mass transfer of the cooling water and the external gas, by the Michael equation Establish the heat transfer unit number (NTU) and the water vapor ratio (l/g) of the commodity design data, and then calculate the coefficient in the equation Index; Step C: Regression analysis of pump running performance, obtain water reef running data and establish regression equation 're-(four) regression equation to establish flow and head ((4) performance curve as the performance curve of water spring, and calculate the coefficients by regression calculation, and b through the system The transfer line and the similarity law find the rotation speed under the flow demand of ^, and then the inverter operation command is issued; "~ long time double value dare to calculate, take the regression analysis of the main performance of ice water performance regression analysis of cooling tower performance, water Milling operation, the data of regression analysis is substituted into the minimum total power consumption function of the air conditioning system, and the operating parameters of the system are obtained under the condition that the total power consumption is the smallest. ^ 20 201215823 Step E. Control according to various operating parameters, and The control operation data is used for the data feedback and the storage operation database. 2. The energy-saving control method for the water-side system of the air-conditioning system according to claim 1, wherein the step A further comprises: step A1. Parameters are used as the basis for power consumption calculation to extract and filter data related parameters of the database; Step A2: Establish regression equations and calculate regressions The equation is the number of φ, where 'the regression equation includes: Ecap = Qfm Qfm is the function of the ice water outlet temperature and the cooling water temperature deviating from the nominal temperature value' as a quadratic equation as follows: E〇ap = / (ATifAT2) = a〇+a12ir1 +α2ΔΤλ2 +α3ΔΤ2 +αΑΔΤ} +α5ΔΤιΔΤ2 +α6^Γ, 2/1Γ22 where 'five cap is full load cold; east capacity correction coefficient; full load refrigeration capacity at actual operating temperature; „ is the nominal cooling _ capacity; the difference between the nominal outlet water temperature and the actual evaporator outlet water temperature of the ice water main unit; the nominal condenser inlet water temperature and the actual condenser inlet water of the ice water main unit The difference in temperature; Epow = Pf.〇+ PF.n is the function of the ice water outlet temperature and the cooling water temperature deviating from the nominal temperature value' as a quadratic equation as follows: 21 201215823 Epow = /(ΔΤλ , ΔΤ2 h+ bxATx + hAT2 + ^ + + b AT A^ + ^ΔΤ2ΔΤ, where five mvv is the power factor of the non-nominal full-load refrigeration capacity; 4. It is the full-load power consumption at the actual operating temperature; Electricity; for nominal evaporation The difference between the outlet water temperature and the actual evaporator outlet water temperature of the ice water host; ... is called the difference between the nominal condenser inlet water temperature and the actual cold chiller inlet water temperature of the ice water host; Epartial = Ppartial. PF. 〇^partial is a function of the unloading rate and is calculated as a quadratic equation as follows. ^partial ^ f(PLR) ~ C ocj PL RC 2X PLR2 where 'five is the power consumption ratio of the partial load; Ppariia/.e is the partial load Power consumption; /V. For non-nominal actual full-load power consumption; for unloading rate; PLR=Qch — QFo= Qch—(QF nxEcap) ·, is the actual running refrigeration capacity of the ice machine; pn is the full-load power consumption in the nominal state; A3: According to the actual operation data, the following formula corrects the power consumption value of the human 0τ in the nominal state 201215823. Among them, 4 is the power consumption value of the ice water host under the operating state; v a4. Verify the regression coefficient of each regression. Check t to confirm its validity, otherwise return to step A1. 3 'A method for energy-saving control of water-side equipment of an air-conditioning system according to claim 1, wherein the step B further comprises: Step B1. Establishing a Michael equation for heat transfer and mass transfer of cooling water and external air (Merkel Equation) NTU KVl = 1: c. hK dt where ATf/ is the number of heat transfer units; is the cooling tower characteristic value; is the specific heat value of the cooling water; Λ· is the Enthalpy value of the water surface; Enthalpy; Equation ί is the water temperature in the water tower; Step Β2: The relevant parameters are retrieved from the database and substituted into the Michael equation. Step 3: Calculate the heat transfer unit value of each group of data by numerical integration method, Step :4: Balance in the heat value Under the premise, the following operating characteristics are established: k//l-ml/〇y where is the cooling tower characteristic value; 23 4 201215823 % is the water-gas ratio; C -η is the test to obtain the < coefficient and index; Step B 5 : The establishment of the price y and y is still step B6: regression solution c and the distribution data table; value 4, as claimed in the patent scope 丨# # m βϋ 1, the air-side system water-saving device control method, wherein Step c is more scooping Transfer or remaining test data, establish flow according to the following formula _ regression calculation to obtain each adaptation coefficient Step C1: Obtain the water recording head (QH) performance curve, and by «0 * HD=aiQj+a\QD+% ... . . . (1) where ' is not counted by the head; δβ is the countless flow; Step C2: Get the pump set X °ΐ % private and set § ten flow to buy, to construct the pump and the design of the system蝻Τ% of the transfer line, if there is a static head, 'Set the static head, then -, a 2 then % ~ b + where' and obtain the coefficient value heart; Step C3. Get the on-site feedback immediate differential pressure data (" 〇 and pump motor operating frequency (/ / 2), the ratio of operating frequency (sense) to the nominal frequency is the speed ratio (ω,) 'and the pump pressure difference (" is equal to the pump output head (/ 〇; step C4: Taking the similar law into equation (I), the pump flow rate 〇= lf^S±4(a\^s)2 ~^^w2s - η) 2α 2 where '2 is the instantaneous flow rate, that is, the system demand water quantity; 24 201215823 Γ ' C5 _ the coefficient value α2, %, α obtained in step C1, and the step data obtained into the step instant flow rate ρ; Step C6: value, substituted Step Step C7: In Step C2 is obtained, and the value of t obtained in step C5 of the E C2, to obtain good values; Construction other similar laws - Pump equation Ι5£: V (^,02 - ; -------- + and the step C5 obtained in step C1 is obtained... ', 6 is ugly', and is substituted into the pump equation. In order to obtain a new speed ratio, and then to obtain a new motor operating frequency; Step C8 · The pump drive motor inverter running command is issued at a new motor operating frequency. The airside system of the air conditioning system as described in claim 1 The throttling control method 'wherein, the step d further includes: Step D1. Retrieving the regression analysis of the power consumption performance of the ice water host, the cooling water tower! The data of the regression analysis and the regression analysis of the pump running performance, and the minimum total consumption of the air conditioning system. The electric function min=孓[PchJ + PpJ+PctJ) /=1 t, the heart is the function of minimizing the total power consumption value of the air conditioning system ice water plant system; 4 is the power consumption value of the ice water host; A is the water consumption value of the water chestnut 25 201215823 纥 is the cooling tower power consumption value; z subscript 'for each chiller, vegetable, cooling tower step D2. According to the air conditioning system architecture to establish the relevant restrictions; Step D3 'take ice water, water temperature and flow Through the exchange of cold leaves in the cold Adjust the load cold; East mouth, cold reduction ridicule heat = ice water flow q X ice water density p X ice water people water temperature difference χ ice water average specific heat Cp; ... Step D4: Assume cooling tower fan speed, numerical analysis to minimize calculation The method calculates the minimum total power consumption function of the air conditioning system by the number of steps G 1 and B JLt ITff and the limit conditions of step D2 and step D3, and obtains the cold water inlet and outlet temperature and fruit of each ice water host. Speed and total power consumption value; Tian y 2 D5. The relative cooling water under different cooling tower wind speeds: The calculation result is established as a data table, so that the power quantity is the temperature of the cooling water: the term function 'differentiates this function The cooling water temperature operating parameter of the lowest total system power consumption value can be obtained and converted to a temperature control reset command. The method for controlling the water-side equipment of the air-conditioning system according to the scope of the patent scope of the 6-segment patent scope 帛 2, wherein the parameters of the .. and the sudden Al include the nominal and actual operating evaporator water temperature, A, road. „Measurement....Condensation into water temperature, load rate and power consumption. For example, the air-side equipment section of the air-conditioning system described in item 2 of the scope of the towel 4 is exempted from the two methods, wherein the step A is within a predetermined time, according to each The actual measured value of item _ is stored in the operational database, and the action of self-correction coefficient is performed on each regression equation or > according to this database to instantly update each of the knowledge equations. 26 201215823 8. If the patent application scope is the third item The air conditioning system water-side equipment energy-saving control method, wherein the parameter of the step B2 comprises an inlet and outlet water temperature of the cooling water tower, an external air dry-wet bulb temperature, a circulating water volume of the cooling water tower, and an air flow rate. The energy saving control method for the water side equipment of the air conditioning system according to the third item, wherein the numerical integration method of the step B3 is performed by using a trapezoidal numerical approximate integration method. 10. The energy-saving control method for the water-side equipment of the air-conditioning system according to item 5 of the patent application scope is 't'. The limitation condition of the step D2 includes the heat absorbed by the ice water host cold load and the input work and the input power of the cooling system. The heat must be equal to the heat taken by the cooling tower; the number of heat transfer units is equal to the cooling tower operation; the sum of the cold energy provided by all the ice water hosts must be equal to the cold energy of the air conditioning load demand, ice water The main load unloading rate, ice water and cooling water flow, and ice water and cooling water temperature must comply with the normal operating range of the commodity specification; water chest operation must comply with the commodity specification. The normal (4) range; the cooling tower windmill operation complies with the normal operating range of the commodity specification; the cooling water is removed from the ancient ^ ^ " water, the absolute value of the outer wet bulb temperature is 3 degrees Celsius', that is, the temperature is approaching More than 3 choices, people, p曰 enough water host Am M d wire 3 degrees, cooling water is equal to ice specific heat and maximum water., ® * knife I ~ mouth except U water machine allows the widest / rt product 'cooling water volume should not be less than The minimum ice water host allows a small flow rate; ^ ^ m ^ ^ ^ ^ . The normal operation of the operation beyond the commodity specifications will promote the addition and subtraction. Lieutenant Eight, schema: (such as the next page). 27