206 results about "Hydronic balancing" patented technology

The invention discloses an intelligent heat supply network integrated system and a control method of the intelligent heat supply network integrated system and relates to a city heating system and a control method of the city heating system. The system comprises a heat source, a heat supply dispatch initial station, a heat exchange station, a primary heat supply pipe network, a secondary heat supply pipe network and a building heat supply pipe network, a main control system, a primary controller, a secondary controller and a building controller are arranged, each stage of heat supply pipe network is provided with a heat meter, a pressure sensor, a temperature sensor and an electric adjusting valve, a circulation pump on the primary network and a circulation pump on the secondary network are respectively provided with a frequency converter, and the building controller, the primary controller and the secondary controller are connected with the main control system; the building controller is electrically connected with the electric adjusting valve of the building heat supply pipe network. The main control system obtains control parameters through the sensors on all the stages of pipe networks, and the working states of the heat supply pipe networks are adjusted and controlled according to the specific values between the parameters and designed values. According to the intelligent heat supply network integrated system, heat and water balance of the heat supply pipe networks is optimally controlled, no utilizable energy is wasted, and the intelligent heat supply network integrated system is green, capable of saving energy, environmentally friendly and beneficial for descendants.

The invention aims to provide a district air-conditioner distributed secondary pump system, which comprises refrigeration main engines 1, chilled water primary pumps 2, a water segregator 3, a water collector 4, and a profit and loss tube 5. According to the invention, in the two forms of an indirect connection 1 and an indirect connection 2, a chilled water secondary pumps 6, plate heat exchangers 7, user chilled water circulating pumps 8, and user tail end air processing devices 9 are mainly arranged on a user side; in the direct connection form, the chilled water secondary pumps 6, the user tail end air processing devices 9, and a bypass pipe 10 of a secondary pump suction inlet with a control valve are mainly arranged in the user side. The invention also provides a connecting form of distributively arranging the secondary pumps to a chilled water distribution system of each user building, and a corresponding operation control method. The system can well realize the hydraulic equilibrium of each paralleled loop circuit of a district cooling system transmission and distribution network, improves the operation efficiency of the secondary pumps, and greatly reduces the water pump energy consumption, thereby improving the energy efficiency ratio of the overall system, and increasing the safety of the overall district cooling system.

The invention relates to a heating supply system hydraulic equilibrium model prediction control method and system. The model prediction control method comprises the following steps that S1, a heating supply system hydraulics simulation model is built; S2, flow distribution schemes of all heating stations are calculated; S3, through the heating supply system hydraulics simulation model, in-station pressure drop of all heating stations corresponding to the flow distribution schemes is calculated; S4, through all heating station running historical data, the congruent relationship between the adjustable valve opening degree or water pump frequency and the heating station hydraulic characteristic is built; and S5, according to target flow and in-station pressure drop conditions of all heating stations, the adjustable valve opening degree or adjustable booster pump frequency in all heating stations are calculated, and control operation is accordingly executed.

The invention relates to the field of advanced control of urban intensive heat supply systems, in particular to a method and a system for controlling variable-flow hydraulic equilibrium of a secondarypipe network by physically fusing information. The method for controlling hydraulic equilibrium comprises the following steps: step S100 of acquiring pipe network data, which corresponds to the heatsupply secondary pipeline network, of each user, and representative room temperature data; step S200 of establishing a hydraulic simulation model of the heat supply secondary pipe network to obtain characteristics of a hydraulic equilibrium relationship of the secondary pipe network on line; step S300 of determining flow needed for each user under a working condition based on the pipe network dataand the room-temperature data; step S400 of calculating unit resistance characteristics which correspond to flow needed by each user through the hydraulic simulation model; and step S500 of determining a control strategy of each user valve which corresponds to the unit resistance characteristics. The method realizes simulation analysis and calculation for a needed working condition, and predicates the control strategy of hydraulic equilibrium under the needed working condition.

The invention relates to a hydraulic balance flow adjusting method based on a data remote transmission system. The system mainly comprises a heat exchange station and a terminal heat user, wherein the heat exchange station and a plurality of parallel branched loops which are supplied with heat by the terminal heat user are subjected to heat exchange on a heat exchanger; a main pipeline loop is provided with an adjustable balance valve and a building calorimeter; each parallel branched loop is provided with an adjustable balance valve or a control valve. The adjusting method comprises the following steps: (1) opening all the valves based on the data remote transmission system; (2) determining a most disadvantaged tail end loop; and (3) adjusting the valve opening degree of each parallel loop to control the flow. By the aid of the adjusting method, the heat source flow can be reasonably controlled, the wastes of a heat source are prevented, the power consumption amount of a water pump is reduced, the adjusting method is rapid and accurate, the cost is low and the practical value is very high; the manpower cost is effectively reduced and the working efficiency is improved.

The invention provides a hydraulic balance temperature adjusting method, and belongs to the technical field of heating, which solves the problem of overlong adjusting time of the existing hydraulic balance adjusting method. The adjusting method comprises the following steps of a, opening all valves, and filling water; b, determining the most adverse loop, wherein the loop with lowest water return temperature is determined as the most adverse loop, and adjusting the most adverse loop; c, adjusting the water return temperature of each main loop and each branch loop, considering compensate temperature, and enabling the water return temperature of each loop to be equal to the total water return temperature; finally, spot-checking a plurality of branch loops, and guaranteeing the accuracy of the adjusted structure. The adjusting method has the advantages that the electric consumption amount of a water pump is less, and the adjusting is rapid and accurate.

The invention provides a secondary side heat supply automatic balance adjustment method based on return water temperature and an intelligent energy consumption monitoring system thereof. Thermodynamicequilibrium of two networks is achieved based on hydraulic equilibrium of the two networks. A target control temperature value and valve opening of heating power inlets of building units are calculated according to real-time operating data at the heating power inlets of building units. By adjusting electric valves at the heating power inlets of secondary side building units uniformly at fixed times, the water return temperatures at the heating power inlets of building units achieve a uniform value to eliminate hydraulic equilibrium of the two network, so that regulating purposes of using heatas needed and performing transmission and distribution in a balanced manner are achieved.

The invention provides a tail end control system and method of a variable-temperature-difference self-adaptive air conditioner. A variable-temperature-difference self-adaptive control method is adopted at the tail end of an air conditioning system, collected data are subjected to calculation to obtain the best temperature difference, a control system is used for controlling the actual temperature difference to reach or to be nearest to the calculated temperature difference, circulating freezing water temperature difference at the tail end of the air conditioner is made to change in a self adaption mode along with work conditions, flow constancy is maintained, and hydraulic balance of the whole air conditioning system is achieved.

The invention discloses a dynamic water power balance adjusting method for a primary side water supply net of a heat exchange station system. The method comprises the following steps that a, data collection is conducted; b, data processing is conducted; c, logic operation is conducted; and d, adjustment control is conducted. The dynamic water power balance adjusting method for the primary side water supply net of the heat exchange station system is provided, the integral structure design is reasonable, the dynamic adjusting method is adopted for controlling water flow of various loops, accordingly, the needs for heat at the tail ends of the loops are met, and dynamic water power balance of the primary side water supply net of the heat exchange station system is truly achieved. Meanwhile, water power balance adjustment and water flow adjustment are organically combined, balanced energy distribution is achieved, the water flow is supplied according to needs, energy waste is effectively reduced, and the energy saving effect is achieved.

The invention discloses an urban intelligent energy resource management system. By the system, on the premise that air conditioner using comfort of end users in an energy source supply area is guaranteed, hydraulic balance of a whole energy supply pipeline system is realized, unnecessary loss of the system is reduced, improving of operation level of building equipment is assisted, and maintaining and managing personnel and huge expense are reduced. A method adopted by the system includes: setting up a simulation system; predicting load of the end users in advance; setting optimal running state of the whole system; feeding back in real time to control the system for real-time optimization adjustment so as to achieve the objective of optimal and most energy-saving operation.

The invention relates to the technical field of heat supply adjustment and in particular relates to a constant-temperature difference and variable-flow hydraulic equilibrium adjusting method. The method comprises the steps of: S1, collecting the indoor temperature ts of users on each loop, the water supply temperature tg of a total loop, the water return temperature ti of each loop and the water return temperature th of the total loop and collecting the data parameters of the pressure difference delta p between a water supply pipe and a water return pipe of the total loop; S2, calculating the indoor temperature deviation delta ts of the users on each loop, the water supply and water return temperature difference delta t of the total loop and the water supply and water return temperature difference delta ti of each loop; S3, performing analytic comparison on the data parameters collected in the step S1 and the data results obtained in the S2 to obtained the required control quantity for the water supply quantity of the total loop and the control quantity for the water supply quantity of each loop; S4, adjusting and controlling the water supply quantity of the total loop according to the control quantity for the water supply quantity of the total loop obtained in the S3 and adjusting and controlling the water supply quantity of each loop according to the control quantity for the water supply quantity of each loop obtained in the S3. The water supply quantities can be controlled in real time by using a dynamic adjusting method, so that hydraulic dynamic equilibrium and thermodynamic equilibrium are achieved.

A multistage distributed water pump heat supply system and a design method thereof relate to a heat supply system and the design method thereof. The system and the method aim at resolving the problem that a traditional direct connection type central heating system is large in ineffective energy consumption, hydraulic power work conditions are mutually coupled, hydraulic power work conditions of a distributed frequency conversion water pump system are coupled and cannot meet the requirement for system extension or load change, balance of hydraulic power of heat users before zero-pressure different point is damaged, and the existing heat supply system adopting a voltage sharing tank is large in ineffective energy consumption and large in voltage sharing tank diameter. The multistage distributed water pump heat supply system comprises a heat source, a heat source position circulation water pump unit, a water supply pipe, a water return pipe and a multistage distribution station. Each-stage distribution station comprises a decoupling tube, a classification pressurization pump and at least one secondary net loop. Each secondary net loop is composed of a heat user pressurization pump and at least one heat user. Decoupling pipes of the multi-stage distribution station are arranged in parallel. The multistage distributed water pump heat supply system is used for centralized heat supply.

The invention belongs to the field of heat supply automation control, and in particular, relates to a heating network hydraulic balance adjusting method and system based on heating station resistancecharacteristics. The heating network hydraulic balance adjusting method based on the heating station resistance characteristics comprises the steps that a global coordination system is set; actual values of all heating station resistance characteristic coefficients are locally analyzed; target values of all the heating station resistance characteristic coefficients are calculated through the global coordination system, and control policies are generated; and the heating network hydraulic balance is adjusted online according to the control policies and the actual values to realize the hydraulicbalance adjustment based on the resistance characteristic coefficients; and due to the characteristic of no coupling influence of the resistance characteristic coefficients from other heating stationadjustment, the hysteresis and oscillation problems in the hydraulic balance adjustment can be effectively prevented, and the quick adjustment of the heating network hydraulic balance is realized.

The invention provides a heating network energy management system and a processing method thereof. The heating network energy management system comprises a plurality of PLC control devices of user side heat exchanging stations, a power plant side heating network origin station DCS, a data acquisition system, a data processing system and an intelligent data management system, wherein each of the PLC control devices is connected with all measure points of the heat exchanging station in which the PLC control device is in; the data acquisition system is connected with all PLC control devices and the power plant side heating network origin station DCS; the data processing system is connected with the data acquisition system and is used for processing according to the data received by the data acquisition system; and the intelligent data management system is connected with the data processing system and obtains the optimization and adjustment results for optimizing and adjusting the flow rate, water supply and return water temperature of the primary network and / or secondary network of each heat exchanging station. The heating network energy management system can realize thermodynamic equilibrium, hydraulic equilibrium and heat distribution according to the demand, so that the energy is utilized to the maximum, and energy consumption is reduced during the transmission process.

The invention provides a secondary side heat supply automatic balance adjusting method based on room temperature and an intelligent energy consumption monitoring system thereof. On the basis of achieving hydraulic equilibrium of two nets, thermodynamic equilibrium of the two nets is achieved, according to real-time running data of an inlet of a building unit heat entrance, in combination with actual indoor average temperature of all building units and reasonable indoor temperature set by the building units, the indoor temperature deviation value of the building units is calculated, an electricvalve on a secondary side building unit heat entrance is adjusted, and the room temperature of the building units reaches the unified value so as to remove the hydraulic unbalance of the two nets. The regulation aim of on-demand heat and equilibrium transmission and distribution is achieved.

The invention relates to a hydraulic equilibrium control system of a secondary network of a centralized heat-supply network and a control method thereof. The hydraulic equilibrium control system of the secondary network of the centralized heat-supply network is characterized by comprising a long-distance central computer control unit and a plurality of horizontal hydraulic disorder control units corresponding to buildings. Each control unit comprises a GPRS (General Packet Radio Service) communicator at the entrance of the corresponding building, a local measurement and control terminal, an electric adjusting valve on a building water supply pipe, a water return temperature sensor on a building water return pipe, and an operated type differential pressure control valve of the building; and an operated type differential pressure control valve of a user is arranged on a user water return pipe inside the building. The control method comprises the following steps of: A, manually and initially adjusting horizontal hydraulic disorder; B, automatically and adaptively adjusting the horizontal hydraulic disorder: calculating a set value t of a building water return temperature by the central computer control unit according to an outdoor temperature, and collecting a building water return temperature T and openness data of an electric adjusting valve, and calculating a deviation value deltaT by each measurement and control terminal, so as to control openness of the electric adjusting valve; and C, manually adjusting vertical hydraulic disorder. The hydraulic equilibrium control system of the secondary network of the centralized heat-supply network and the control method thereof provided by the invention have the advantages that uniform heat supply is ensured, energy is saved, and consumption is reduced.

The invention provides a hydraulic equilibrium debugging device of a heating and ventilating system and a debugging method thereof, which are used for solving a problem that the hydraulic equilibrium debugging process in an existing heating and ventilating system is complex. According to the hydraulic equilibrium debugging device of the heating and ventilating system, the heating and ventilating system comprises a main-pipe pipe network, a branch-pipe pipe network and a plurality of tail-end pipe networks, wherein the main-pipe pipe network is to be communicated with a heating station; the main-pipe pipe network, the branch-pipe pipe network and the tail-end pipe networks are respectively communicated, correspondingly; the debugging device comprises a plurality of regulating valves, flow rate meters, an actuator and a central processor, wherein the plurality of regulating valves are correspondingly connected in a circulation loop formed by the main-pipe pipe network, the branch-pipe pipe network and the tail-end pipe networks, respectively; the flow rate meters are respectively arranged on the regulating valves and used for detecting the flow rates of the regulating valves; the actuator is connected to the regulating valves and used for controlling the regulating valves to act; and the central processor can be used for receiving a flow rate signal sent by the flow rate meters and driving the actuator to adjust the degree of opening of the regulating valves according to the flow rate signal. The hydraulic equilibrium debugging device of the heating and ventilating system and the debugging method thereof disclosed by the invention have the advantages of high debugging efficiency and high debugging precision.

The invention discloses a hydraulic equilibrium adjusting system and adjusting method. The system comprises a hydraulic regime monitoring server, a temperature sensor, a pressure sensor, a water supply pipe valve and a water return pipe valve; the water supply pipe valve and the water return pipe valve are installed at a heating power entrance of a building. The method comprises the steps that thehydraulic equilibrium parameter of a heat supply system is obtained; whether hydraulic disorder occurs is judged according to the hydraulic equilibrium parameter of the heat supply system, and a first judgment result is obtained; when the first judgment result shows yes, an alarm signal is sent out and an adjusting scheme is determined according to the condition of hydraulic disorder; an adjusting command is sent according to the adjusting scheme; and the opening degree of the water return pipe valve is adjusted according to the adjusting command. The adjusting command comprises the appointedopening degree of valve adjustment, field reconfirmation is not needed, errors and time and labor waste caused by repeated adjustment after manual judgment are reduced, the adjusting efficiency and precision are improved, and the problem of hydraulic disorder of the heat supply system is solved.

The invention discloses a variable flow and household metering centralized heating system and a hydraulic balance regulating method. The system comprises household metering modules, a water supply temperature measuring module, a water returning temperature measuring module and a heat supply network monitoring and controlling management platform. The household metering modules are arranged at the positions of users, and the heat supply network monitoring and controlling management platform is in communication connection with the household metering modules and a total circulating pump and collects the water supply temperature and the water returning temperature in pipe network systems through the water supply temperature measuring module and the water returning temperature measuring module; and a frequency changer is arranged on the total circulating pump. The water quantity needs of the users are met, and on the premise that the heat comfort requirement of the users is met, the flow is adjusted according to needs, and energy consumption is reduced; and the cost is saved, the reliability and the stability are higher, and the system is more suitable for long-term utilization.

The invention provides a flow-based secondary side heat supply automatic balance adjustment method and an intelligent energy consumption monitoring system of secondary side heat supply. According to the flow-based secondary side heat supply automatic balance adjustment method and the intelligent energy consumption monitoring system of the secondary side heat supply, on the basis of achieving secondary network hydraulic equilibrium, the secondary network thermodynamic equilibrium is realized; imbalance degree of each building unit is calculated according to the real-time running data of thermodynamic inlets of building units and together with the design flow of each building unit, then electric valves at thermodynamic inlets of secondary side building units are adjusted, so that the real-time flows of the thermodynamic inlets of the building units reach a uniform value to eliminate the secondary network hydraulic imbalance, and the regulating and controlling purposes that heat is used according to needs, and conveying and distribution are balanced are achieved.

The invention discloses a heat supply pipe network hydraulic balance automatic adjustment method. According to the method, a wireless indoor temperature collector, a temperature sensor of return water supplied by a building unit, and an electric adjusting valve on a water return pipeline are connected with a computer control unit, the computer control unit is combined with a target indoor temperature set by an operator, the area of heating radiators in rooms of all users, the outdoor temperature and other parameters for calculation according to acquired data, and therefore the automatic adjusting valve on the water return pipeline can be controlled to perform automatic adjustment, adjustment results are fed back every other time, and conditions of a whole heat supply system can be monitored in real time and adjusted at any time. With the method, labor intensity of workers is reduced, the indoor temperature of the users serves as a target, and the adjustment results are visual and reliable.

The invention provides a dynamic hydraulic balance adjusting method for a centralized heating system. The method comprises the steps that operation data of end users of the centralized heating system are obtained, indoor environment data of the end users are obtained, outdoor environment data are obtained, and water supply temperature data of a main pipeline of the centralized heating pipe network system are obtained; a target indoor environment state of the end users of the centralized heating system are set; control parameter curves of the centralized heating system are calculated according to the target indoor environment state of the end users and the water supply temperature data of the main pipeline, and the control parameter curves comprise at least one of an electric two-way valve control parameter curve of all the end users and a water supply-return pressure difference control parameter curve of the centralized heating main pipeline; and the centralized heating system is controlled to operate according to the control parameter curves. According to the adjusting method, no sensor or dynamic hydraulic balancing valve or other equipment needs to be arranged; dynamic hydraulic balance of the centralized heating system is achieved through dynamic control over electric two-way valves of the end users, the requirement for indoor comfort is met, the energy consumption of the centralized heating system is reduced, and the implementation cost is low.

The invention discloses a regulation and control method and system for a secondary network of a heat exchange station. The regulation and control method comprises the steps that a secondary network return water temperature detection value and an indoor temperature detection value are obtained; a secondary network return water temperature control set value is calculated according to the indoor temperature detection value and a secondary network non-intermediate unit return water temperature correction value; the secondary network return water temperature control set value is compared with the secondary network return water temperature detection value to obtain a return water temperature control error; an opening degree change numerical value of a secondary network regulation and control valve is calculated according to the return water temperature control error and secondary network physical parameters; and the opening degree of the secondary network regulation and control valve is adjusted according to the opening degree change numerical value of the secondary network regulation and control valve. According to the regulation and control method and system for the secondary network of the heat exchange station, the thermal balance degree, the hydraulic balance degree and the control precision of the secondary network and heat consumers are improved, necessary conditions are provided for optimized operation of the heat exchange station, the heat supply quality requirement of the heat consumers is met, free heat of the system is fully utilized, system energy consumption and pollutant emission are reduced, and labor cost and labor intensity are reduced.

The invention provides a water power balancing debugging method of a pipeline system and belongs to the water power system technical field. The water power balancing debugging method of the pipeline system resolves the problem that an existing debugging method of pressure drop is complicated. In the debugging method, a plurality of user ends are parallelly connected between a water inlet pipe and a water outlet pipe, a balancing valve at the position of a tail end user end is selected as a referring valve as debugging, and a tester is utilized to get the pressure drop at the position of the referring valve as a referring valve. The balancing valve at the position of a user end which is adjacent to the tail end user end is opened, the referring valve is further measured by the tester, and the pressure drop at the position of the referring valve is acquired. If a measured differential pressure is different from the referring valve, then an cooperation valve is opened and the differential pressure at the position of the referring valve is changed, so that the differential pressure is matched with the range of the referring valve, and a balancing valve at the position of a reciprocal third user end is opened, and the rest can be done in the same manner. Eventually, the differential pressures of the balancing valves of all user ends in the whole system are basically the same. The debugging method has the advantages of being fast and convenient to debug, low in systematic cost and high in utility value.

The invention provides a variable water temperature control system suitable for an air conditioning secondary pump system, relates to the field of refrigeration control, and aims to improve the refrigerator power and hydraulic equilibrium adjusting accuracy of an air conditioning system and reduce energy consumption. The variable water temperature control system comprises a refrigerator device, a water supply / return pipeline, the air conditioning system and an equalizing pipeline. The air conditioning system comprises one or more air conditioning terminals, and the air conditioning terminals are of multiple types including fan coil pipes. A primary water pump and a secondary water pump are arranged on the water supply / return pipeline. The control system further comprises a refrigerator power preprocessing device, a refrigerator power control device and a secondary water pump variable-frequency control device, the refrigerator power preprocessing device is used for calculating the reflux ratio of the equalizing pipeline and the cold water temperature set value, and the refrigerator power control device is used for controlling the power of the refrigerator device. The secondary water pump variable-frequency control device is used for calculating the cold water equivalent valve position opening degree value of the fan coil pipes, and variable-frequency control is carried out over the secondary water pump according to the maximum valve position opening degree value in all air conditioning terminal cold water adjusting valves in the air conditioning system. The variable water temperature control system can be used for a frequency conversion technology in air conditioning.

The invention discloses a swarm intelligence optimization method for dynamic hydraulic balance of a chilled water pipe network of a central air conditioner. The method is characterized in that intelligent computing nodes CPNs are set in air conditioning cabinets, bypass valves and water pump equipment in the chilled water pipe network; all the intelligent computing nodes CPNs are interconnected according to an actual physical topological connection relationship to form a network communication system of a swarm intelligence architecture; corresponding distributed computation is completed according to the adjustment task, and finally the dynamic hydraulic balance of the chilled water pipe network is achieved with the minimum system total power; the intelligent computing nodes CPNs of the airconditioning cabinets compute through information interaction to obtain the minimum system water supply and return pressure difference and the total flow meeting the flow requirements of all the airconditioning cabinets at the tail end of the system, and compute to obtain the opening degrees of water valves of surface air coolers of the air conditioning cabinets; and the intelligent calculatingnodes CPNs of water pumps compute to obtain an optimal operation strategy of a parallel water pump system according to the obtained system water supply and return pressure difference and the total flow requirement, and finally the purposes of the optimization of the dynamic hydraulic balance of the chilled water pipe network, the energy conservation and the consumption reduction are achieved.

The invention relates to a balance valve, in particular to an Internet of Things balance valve and a control method thereof. The Internet of Things balance valve comprises a balance valve body, a motor support installed on the balance valve body and a communication detecting and controlling module; a reducing mechanism, a motor, an optical-electricity encoder, a pressure difference transmitter and the communication detecting and controlling module are installed on the motor support; a valve element and a copper sleeve matched with the valve element tightly are arranged inside the balance valve body, a threaded rod is arranged inside the copper sleeve, the reducing mechanism is arranged at the top end of the threaded rod, and an electric operation mechanism and a handle operation mechanism are arranged on the reducing mechanism. The whole process of the balance valve is achieved automatically, a site system communicates with a remote server through a wireless ad hoc network and a wireless network gateway, the movement of the valve can be controlled accurately, the evaluation of the whole pipe network hydraulic equilibrium is conducted in an online real-time mode, and therefore the automatic and fast hydraulic equilibrium can be achieved.

The invention discloses an intelligent split-type heat pump hot water supply device and a control method of the intelligent split-type heat pump hot water supply device. The device comprises a first water tank and a first heat pump main machine, a second water tank and a second heat pump main machine, and a third water tank and a third heat pump main machine, wherein each of the water tanks is internally equipped with a condenser, the condenser in the first water tank is connected with the first heat pump main machine, the condenser in the second water tank is connected with the second heat pump main machine, the condenser in the third water tank is connected with the third heat pump main machine, the middle / upper part of each of the water tanks is provided with a water outlet and the lower part of each of the water tanks is provided with a water inlet, the water outlets and the water inlets of the first, second and third water tanks are connected in parallel respectively, the device also comprises a centralized controller, the upper parts of the first water tank, the second water tank and the third water tank are all provided with water temperature sensors and the water outlets of the first water tank, the second water tank and the third water tank are all equipped with electromagnetic valves, and each water temperature sensor and each electromagnetic valve are connected withthe centralized controller. The control method is characterized by utilizing the centralized controller to control the operating state of the electromagnetic valves on the water tanks, thereby guaranteeing the hydraulic equilibrium of water supply of the water tanks.

The invention discloses a debugging method and system for hydraulic balance. The debugging method comprises the steps that a product identification of a hydraulic balance valve to be debugged is determined, and a valve parameter curve corresponding to the product identification is obtained from a preset data base; the valve opening degree of the hydraulic balance valve is obtained, and a flow coefficient corresponding to the valve opening degree is determined according to the valve parameter curve; and the pressure difference of the two ends of the hydraulic balance valve is obtained, and the current flow flowing through the hydraulic balance valve is worked out according to the pressure difference and the flow coefficient. According to the debugging method and system for hydraulic balance, the valve parameter curve corresponding to the product identification of the hydraulic balance valve to be debugged is obtained from the preset data base, and accordingly the flow coefficient corresponding to the valve opening degree of the hydraulic balance valve can be determined; then, the current flow flowing through the hydraulic balance valve can be worked out by combining the pressure difference obtained through measurement; and thus the limitation that a debugging instrument only can be used with the hydraulic balance valve in a matched mode can be relieved, and the debugging difficulty of hydraulic balance is reduced.

The invention relates to an inclined jet turbine which belongs to the field of fluid machinery and is especially applicable to developing and utilizing small and medium water power resources. The inclined jet turbine comprises a diversion ring pipe, a machine shell, nozzles as well as a rotating wheel and a motor which are arranged inside the machine shell. The inclined jet turbine has the key technology that the diversion ring pipe is provided with the 2-6 nozzles which are aligned with the rotating wheel, the included angles between the nozzles and the plane of an inlet of the rotating wheelare 19-21 degrees, the jet flow inlet angle alpha 1 is 19-21 degrees, the outlet width L of the rotating wheel is increased by 25-30%, and the setting angle gamma at an outlet of the rotating wheel is 15-17 degrees. The inclined jet turbine has the advantages that the multi-nozzle inclined jet unit can be vertically or horizontally arranged; all the nozzles are in a state of hydraulic equilibriumand stably run; furthermore, the single-machine capacity is improved, the efficiency of the rotating wheel of the turbine is increased, and the problem of jet interference of the multi-nozzle turbinecan be solved.