673results about How to "Realize the purpose of energy saving" patented technology

The present invention provides energy-saving interior lighting wireless intelligent control system based on ZigBee wireless communication technology and the control method. The control method is comprises of ZigBee communication network composed of a plurality of wireless network nodes and PC machine; the wireless network node comprises coordinator node, route node and terminal node; the coordinator node is connected with the PC machine to compose lighting control center; the unique coordinator node and all the route nodes compose the two-level network; the route node and the terminal node in the room compose the lighting sub-system for controlling the lighting mode of each room; the lighting control center controls the state of each node of the lighting sub-system and the preset lighting mode; the lighting sub-system automatically controls the lighting mode in the current room according to the collected environmental information. The present invention causes the lighting control to be intelligent, ensures the illuminance consistency; and the luminaires have long life, convenient management, low maintenance cost and are energy conservation and environmental protection.

The invention discloses an intelligent oil fume exhaust ventilator wind speed adjustment method, which comprises: collecting an image below an oil fume exhaust ventilator; detecting the edge of the image to obtain the target area of the stove in the image; treating the target area of the stove in the image or treating the video stream of the target area of the stove to obtain smoke information; generating and outputting a wind speed adjustment command to a wind speed adjustment device according to the smoke area and the smoke level; and adjusting the wind speed of the oil fume exhaust ventilator by the wind speed adjustment device. The invention further discloses an intelligent oil fume exhaust ventilator wind speed adjustment apparatus using the intelligent oil fume exhaust ventilator wind speed adjustment method, wherein the intelligent oil fume exhaust ventilator wind speed adjustment apparatus comprises a camera, a control chip and a wind speed adjustment device, wherein the camerais used for collecting the image below the oil fume exhaust ventilator, and the camera and the wind speed adjustment device are respectively connected to the control chip. According to the present invention, with the method and the apparatus, the stove area is imaged, and the obtained image is treated to obtain the smoke area and the smoke level, such that the smoke concentration can be accurately judged, and the wind speed of the oil fume exhaust ventilator can be accurately adjusted.

The invention provides a server integration method oriented to minimum energy consumption. The server integration method oriented to minimum energy consumption includes that resource states and performance data of servers and virtual machines on the servers are periodically obtained, and meanwhile, energy consumption of the servers is periodically measured by an external-connected wattmeter on a physical server to be stored; resource state data of the servers, resource state data of the virtual machines, performance data of the servers and the performance data of the virtual machines are periodically collected, and data pre-processing is performed; a server energy consumption model is established; a virtual machine transfer cost prediction model is established; transfer cost prediction value of each virtual machine is obtained; virtual machine comprehensive assessment is performed by means of an improved analytic hierarchy process; service stability index of the servers is calculated; a server integration scheme is determined; server integration is performed. According to the server integration method oriented to minimum energy consumption, the virtual machines are transferred to proper servers by means of a dynamic packing algorithm according to virtual machine resource required quantity and server resource surplus, and the number of starting servers is the minimum under the condition of stable service operation.

The invention relates to an emergency traction system applied to urban mass transit. The system comprises a power supply network, an auxiliary system of an urban mass vehicle, a main traction invertor, a traction motor, a power conversion device, an energy storage component and a master controller; the output end of the power supply network is connected with the power conversion device, the main traction invertor and the auxiliary system of the urban mass vehicle respectively; one end of the energy storage component is connected with the high-voltage side of the power supply network, and one end of the energy storage component is connected with the power supply network; the high-voltage side of the power conversion device is connected with the main traction invertor and the auxiliary system of the urban mass vehicle, and the low-voltage side of the power conversion device is connected with the energy storage component; and the traction motor is connected with the output end of the main traction invertor, and drives a train to run; and the power supply network, the auxiliary system of the urban mass vehicle, the main traction invertor, the traction motor, the power conversion device and the energy storage component are connected with the master controller through a communication bus. The system is suitable for high voltage grades, has a smaller volume and long service life, is high in reliability, and wide in an application range, and can be controlled flexibly, the traction load and distance are larger; and time of return on investment is short.

The invention provides an optimization energy-saving dedusting control method and system of a cloth bag pulse dust collector. The system comprises a main control system electrically connected with a control system of a craft room, a first pressure sensor, a second pressure sensor, a third pressure sensor, a temperature sensor, a humidity sensor, an air detector, a rain sensor, a pulse control valve and a frequency converter, wherein the first pressure sensor, the second pressure sensor, the third pressure sensor, the temperature sensor, the humidity sensor, the air detector, the rain sensor, the pulse control valve and the frequency converter are respectively connected with the main control system. The pulse control valve is arranged in a compressed air pipeline, and the frequency converter is respectively connected with the main control system and an induced draft fan. According to the optimization energy-saving dedusting control method and system, gas temperature and pressure of dust gases at the inlet of the cloth bag dust collector, gas pressure at the outlet of the cloth bag dust collector, pressure of blown compressed air, production process parameters and other data are detected, on the basis of the data, the main control system controls the frequency converter according to set values to control the rotation speed of the induced draft fan, additionally, the main control system is connected with an air detection instrument to achieve closed-loop control of the air speed, the energy-saving purpose is achieved through an optimization control mode, and the optimization energy-saving dedusting control method and system have the advantages of being high in dedusting efficiency and environmentally friendly, saving energy and prolonging the service life of a dedusting cloth bag.

The invention discloses a multi-mode electromagnetic energy-regenerative vehicle active suspension actuator. The multi-mode electromagnetic energy-regenerative vehicle active suspension actuator comprises an actuator main body and an actuator controller, wherein the actuator main body comprises a piston cylinder, a permanent magnet linear motor module, an adjustable damping vibration absorber module, an actuator upper end cover and a lower lifting lug. The permanent magnet linear motor module comprises a secondary piston rod, a linear motor upper end cover, a linear motor lower end cover, a plurality of silicon steel sheets, a plurality of primary coils and a permanent magnet; the adjustable damping vibration absorber module comprises a vibration absorber piston rod, a sleeve, an upper lifting lug, a sealing separation plate, a big piston, a small piston, a damping liquid passage and a proportional electromagnetic valve; and an input end of the actuator controller is connected with an acceleration sensor, a sprung mass speed sensor and an unsprung mass speed sensor. The invention further discloses a control method for the multi-mode electromagnetic energy-regenerative vehicle active suspension actuator. The invention is advantaged in that the energy-regenerative efficiency of the multi-mode electromagnetic energy-regenerative vehicle active suspension actuator is high, the service life of a vehicle-mounted storage battery can be effectively prolonged and an active suspension is in an optimal vibration absorbing state.

The invention discloses an air conditioner with a waste heat recovery function. The air conditioner comprises a compressor, an outer unit fan and a thermal electricity device, wherein the compressor is used for outputting a high-temperature high-pressure refrigerant through an exhaust pipe; the outer unit fan is used for dissipating heat of the air conditioner; the thermal electricity device is used for generating power through cold and hot temperature difference and comprises a power generation module, a cold-end module and a hot-end module; the cold-end module is connected with one side of the power generation module in an attached mode; the hot-end module is connected with the other side of the power generation module in an attached mode; the hot-end module is connected with a high-temperature exhaust pipe of the compressor and is used for absorbing heat of the exhaust pipe of the compressor; and the cold-end module is used for cooling by utilizing the outer unit fan, so that a temperature difference is generated between the hot-end module and the cold-end module. The thermal electricity device fully utilizes the temperature difference generated by high-temperature gas discharged by the compressor and cooling of the outer unit fan, so that the power generation module emits electric energy according to a thermo-electric effect. The waste heat generated during air conditioning refrigeration is recovered for generating power by using the thermal electricity device, the generated electricity is directly fed back to internal components of the air conditioner to be used, and the energy consumption of the air conditioner is reduced, so that the energy-saving aim is achieved.

The invention relates to a tracking method aiming at single axis solar energy and provides a solar energy tracking method with umbra versa tracking. The solar energy tracking method with the umbra versa tracking accurately calculates positions of the Sun based on modern astronomical algorithms, calculates shadow length of solar panel assemblies and adjusts angles of the solar panel assemblies according to the width of the assemblies and distance between the front and back rows of the solar panel assemblies. Therefore, at any time no shadow can be generated along the east-and-west directions of the front and back rows of the solar panel assemblies, the effects that the sun light is perpendicular to the solar panel assemblies and the light intensity is maximized are achieved, and the photovoltaic conversion rate is increased. The solar energy tracking method with the umbra versa tracking is small in energy consumption, applicable to various latitudes, free from the restraint of the geographical location, capable of being directed at the Sun to the maximum extent and receiving direct solar radiation and capable of effectively avoiding that the east and west assemblies are shaded by the shadow. The technical problems existing in the prior art that the solar panel assemblies shade each other and form the shadows, the sun light receiving is affected, and thereby the photovoltaic conversion rate is affected are solved.

The invention discloses a self-air-entraining jet mechanism for an axial fan / compressor, and relates to the technology of combustion turbines. According to the self-air-entraining jet mechanism for the axial fan / compressor, diffusion deceleration is achieved by adopting an increasing pipe as an outlet at the rear stage of the axial fan / compressor, and the flow loss is reduced; and the air inlet nozzle end adopts a Laval nozzle to achieve the purposes of acceleration and decompression, so that the momentum of the outlet of the air inlet nozzle is maximized and the purpose of improving the stability margin is achieved to the largest extent. When the self-air-entraining jet mechanism for the axial fan / compressor is in operation, gas at the rear stage is guided into the top area of a movable vane at the front stage to be jetted, so that the purposes of improving the stall speed and increasing the stability margin are achieved, and therefore the axial fan / compressor can run under the working conditions of higher pressure ratio and wide stall margin.

The invention provides an air conditioner control method and an air conditioner control system. The air conditioner control method includes the following steps that room information is acquired, wherein the room information comprises room sizes and / or room heat leakage; according to the room information, operating information of an air conditioner is acquired; and the operating information is transmitted to the air conditioner to be executed. According to the air conditioner control method and the air conditioner control system, the problems that in the air conditioner operating process, temperature control is inaccurate, and energy is wasted in the prior art are effectively solved.

The invention discloses a device for widening a stable operation area of a centrifugal compressor. The device comprises a plurality of high frequency response dynamic pressure sensors, a high frequency response dynamic strain indicator, signal conditioning equipment, a signal processing digital signal processor (DSP) module, and an air jet device, wherein the dynamic pressure sensors and the dynamic strain indicator acquire dynamic signals of the compressor during operation; the signal conditioning equipment transmits the signals to the DSP module; and the DSP module processes the signals and sends a command to a controller so as to make the air jet device act. The device can widen the stable operation area of the centrifugal compressor, namely a stability working range, and eliminates or reduces the harm of flow instability, namely stall and surge. The invention also discloses a method for widening the stable operation area of the centrifugal compressor, and a centrifugal compressor provided with the device for widening the stable operation area of the centrifugal compressor.

The invention provides a garbage can with a garbage identification and classification function. The garbage can is provided with a weighing device, a first camera, a second camera, a garbage can coverand a host machine, wherein the weighing device is used for weighing garbage which is put each time; the first camera is used for acquiring image data of the garbage which is put each time and transmitting the image data to the host machine; the second camera is used for acquiring image data of people who put the garbage and transmitting the image data to the host machine; the host machine is used for controlling the weighing device and the first camera and / or the second camera to be activated or enter a dormant state based on an opening or closing state of the garbage can cover. The garbagecan provided by the invention is set in a manner of being closer to garbage collection habits of nearby inhabitants; the type of the garbage which is put each time and corresponding people who put thegarbage are analyzed, identified and recorded; excitation or warning is pertinently carried out aiming at garbage putting behaviors of the specific people who put the garbage, so that the accuracy ofclassified putting of the garbage in a community is improved, and furthermore, a garbage classification condition of the whole community is improved.

The invention discloses a self-regulating phase change Trombe wall. The self-regulating phase change Trombe wall is composed of a glass layer (1), an air layer (2), a first phase change wall layer (3), a first thermal insulating layer (4), a concrete wall layer (5), a second thermal insulating layer (6) and a second phase change wall layer (7) which are sequentially arranged from outside to inside, wherein the phase change temperature of the first phase change wall layer (3) is 27-29 DEG C; the phase change temperature of the second phase change wall layer (7) is 17-19 DEG C; both the first phase change wall layer (3) and the second phase change wall layer (7) are obtained by melting and blending the raw materials including high-density polyethylene, expanded graphite and paraffin. By improving the key heat storage wall structure, the setting manner of the heat storage wall structure, the setting mode of a ventilation port, the switching conditions of opening and closing states and the like, the self-regulating phase change Trombe wall can effectively solves the problem in the prior art that Trombe walls are insufficient in heat supply in winter days without sun or too hot in summer.

The invention provides an air conditioning system which independently controls temperature and humidity and a refrigeration / dehumidifying method. A cooling media circulation system, a water circulation system and an air supply system of an air duct machine are assembled to realize independent control of the temperature and the humidity, thus greatly improving comfort of a user and realizing energy saving.

The invention relates to a system for avoiding startup and shutdown peaking by matching a heat and power cogeneration unit with a pure condensing thermal power unit, which comprises the heat and power cogeneration unit, the pure condensing thermal power unit, a heat pump of an air conditioner, an electric energy meter, a radiator, a heat consumption meter and a dispatching control device, wherein the electric energy meter is used for detecting power consumption data, the heat consumption meter is used for detecting heating heat consumption data, the dispatching control device is further used for collecting the power consumption data, the heating heat consumption data and all energy consumption during one startup and shutdown of the pure condensing thermal power unit and further generating a dispatching control signal, and the dispatching control device is used for sending the dispatching control signal to the heat and power cogeneration unit, the pure condensing thermal power unit, the heat pump of the air conditioner and the radiator, and controlling the operation of the heat and power cogeneration unit, the pure condensing thermal power unit, the heat pump of the air conditioner and the radiator. The system can effectively avoid the startup and shutdown peaking of the pure condensing thermal power unit, and further reduce the fuel loss caused by the startup and shutdown peaking.

The present invention provides a multi-source photoelectric integrated power supply, storage and saving method and a device. The device system is at least provided with a wind power storage unit and a photoelectric storage unit and can also be increasedly provided with a circuit redundancy storage unit to simultanesouly implement the energy recovery at a plurality of points. The method complements the energy time difference of nature so as to meet the work requirement of the system when multiple points carry out power storage, charging and supply to one point by the intelligent control method. The present invention can recover and store the optical energy at the same time of using power for illumination; the fully charged battery can directly light a plurality of lamps. In addition, the power in the battery can be DC / AC converted so as to drive fan, computer, TV and other household appliances, thus achieving the aim of fully utilizing the energy of the nature and combining with commercial power to save energy through the system optimization treatment. The present invention adopts a plurality of technologies for comprehensive treatment of light, wind and power and optimal utilization and the energy saving rate is up to 89.2%.

The invention discloses an electric water heater. The electric water heater comprises inner containers and a control part, and is characterized in that: the two inner containers are arranged side by side and are connected in series end to end; a group of corresponding heaters are arranged in each inner container; each group of heaters are provided with corresponding temperature sensors; a cold water inlet of one inner container is provided with a flow sensor which is used for sensing water flow to judge whether a system is in a used state or an unused state; the control part comprises a central processing unit (CPU) master control circuit; the temperature sensors corresponding to each group of heaters are connected with the CPU master control circuit; the flow sensor is connected with the CPU master control circuit; the CPU master control circuit is connected with a group of corresponding heaters in each inner container and is used for controlling the two groups of heaters through input signals of all the temperature sensors and the flow sensor; and the two groups of heaters can automatically, alternately and interactively heat water along with the change of the water temperature in the inner containers, and can automatically change the current heating power along with the difference of the current water temperatures of the inner containers, namely heat the water by using lower-grade power at high temperature and heat the water by using higher-grade power at low temperature. The electric water heater has the advantages of reducing waste of redundant heat and effectively saving energy.

The invention relates to a circulating water cooling system, in particular to a circulating water cooling system for cooling towers, which is used for intelligent energy-saving and comprehensively uses devices such as a cooling tower, a heat exchanger, a circulating water pipeline, a cooling tower water pump and the like. The cooling system comprises a cooling tower, a heat exchanger, a circulating water pipeline and a cooling tower water pump, wherein a water kinetic energy wheel fan is arranged in an air tube; a circulating water input port is dead against the water kinetic energy wheel fan, and the kinetic energy of circulating water directly drives the water kinetic energy wheel fan to rotate; and an ultrasonic scale preventing and removing device is arranged in a second water feeding pipe behind the heat exchanger. The circulating water cooling system for cooling towers, disclosed by the invention, adopts a closed-loop intelligent control mode; and the flow and pressure of cooling water in the cooling tower circulating pipeline are main physical parameters of heat exchange efficiency, and the rotating speed of a water turbine blade, the frequency control of the water pump and the starting of the ultrasonic scale preventing and removing device are controlled through sampling the change values of the flow and pressure, thereby achieving an effect of improving the heat exchange efficiency according to the heat exchange requirements.

The invention provides a washing machine, which comprises an outer tub (43) hung inside a tank (41), an inner tub (44) supported inside the outer tub, a driving part (48) for driving the rotation of the inner tub, a detergent feeding device (64) and an inlet valve (70) arranged on the upper part of the tank, a drain pipe (75) communicated with the bottom of the outer tub, a drain valve (74) for discharging the water inside the outer tub via the drain pipe, a temperature detection part (97) arranged inside the drain pipe, a cleaning hose (72) for connecting the inlet valve (70) with the drain pipe and a control part (87) for controlling the cleaning process, the rinsing process and the dehydration process. The time of the dissolution process for the detergent is determined by the control part according to the temperature of the added water. Therefore, clothes can be cleaned through an appropriate washing process.

The invention relates to a suspension-type public bicycle frame, and discloses an energy-saving suspension-type public bicycle parking station. The energy-saving suspension-type public bicycle parking station comprises a suspension-type frame main body, a canopy and a solar power generation panel, wherein the frame main body is fixed on a base, a U-shaped oblique groove is formed in the middle of the base, a bicycle storage wall is arranged above the U-shaped oblique groove, a first track cavity and a fixing lock outlet are formed in the left side of the bicycle storage wall, and a second track cavity, a lifting lock hole and a fixing lock hole are formed in the right side of the bicycle storage wall; a first supporting seat, a second supporting seat, a hydraulic lifting rod, a first casing pipe, a second casing pipe, a first electronic push-pull rod, a second electronic push-pull rod, a lifting lock and a fixing lock are installed inside the frame main body; a convex monitoring camera, an infrared detector, an LED touch screen, a card punching groove, a card read chip and an indicator lamp are installed at the outer side of the frame main body; the canopy is fixed on stand columns, and the solar power generation panel is installed on the canopy by virtue of a rotatable supporting seat. By utilizing the energy-saving suspension-type public bicycle parking station, not only can the energy conservation and environmental protection be realized, but also the floor occupation space is reduced, bicycles are protected, and the bicycles are convenient for travelers to borrow and return.

The invention belongs to the field of field irrigation and fertilizer distribution and discloses a mobile multifunctional constant-pressure irrigation fertilizer distributor and an irrigation and fertilizer distribution method thereof. The irrigation fertilizer distributor comprises a main pipeline, a water pump and a fertilizer applicator. The main pipeline is used for conveying water-fertilizer fixed liquid. The water pump is used for extracting irrigation water of the main pipeline and adjusting water inflow of the irrigation water. The water pump is controlled by a variable frequency constant-pressure control device to pressurize the irrigation water. The fertilizer applicator is used for conveying fertilizer and nutrient solution to the main pipeline. The variable frequency constant-pressure control device is connected with the main pipeline through a pressure sensor and used for receiving pressure signals acquired by the pressure sensor and controlling rotation speed of the water pump. By the irrigation fertilizer distributor and the irrigation and fertilizer distribution method thereof , irrigation pressure and flow can be controlled simultaneously, stable system fertilizer distribution concentration can be guaranteed while blocking and corrosion of the irrigation system can be prevented, the requirements for even and high-quality irrigation and fertilizer distribution can be satisfied, and energy conservation can be achieved.

The invention provides a train operation control method and system. The method comprises the following steps that: when a train departs in advance during a train parking period, an automatic train operation device sends in-advance departure notice information to a comprehensive monitoring center; the comprehensive monitoring center obtains inter-station operating time according to departure time of the train, obtains a corresponding preset train operation stage and a driving strategy according to the inter-station operating time, and sends the inter-station operating time and the driving strategy to the automatic train operation device; and the automatic train operating device obtains an energy-saving target operation curve according to the inter-station operation time and the driving strategy, and controls operation of the train according to the energy-saving target operation curve. The train operation control method can be combined with an operation plan and an operation stage of the comprehensive monitoring center, and utilizes redundant stop time, and distributes the time into operation time of a next region, so that region operation time is prolonged, average speed is reduced, traction is reduced, and energy saving is realized.

The invention relates to an energy-saving driving control method matched with a mechanical automatic transmission vehicle. The energy-saving driving control method comprises energy-saving slide detection and energy-saving slide control and is characterized in that energy-saving slide detection comprises slide entrance detection and slide exit detection so as to determine whether a vehicle enters or exits an energy-saving slide mode; the energy-saving slide control comprises trial slide control, confirmed slide control and slide exit control, and enables the vehicle to work in a state of breaking or recovering a transmission system on the basis of a judgment result that the vehicle enters or exits the energy-saving slide mode; a manual slide habit of a driver can be imitated, firstly, a clutch is separated to carry out trail sliding for a certain time, and when sliding is confirmed, a neutral position is switched into, so that when a certain energy-saving aim is fulfilled, increase of abrasion on a mechanical mechanism is avoided; moreover, in the process of entering or exiting the slide mode, power flow of the power transmission system can be rapidly and smoothly switched or recovered so as to fulfill the aims of safety and comfort.

The invention discloses a phase change wall system capable of controlling storage and release of heat. The phase change wall system comprises a phase change wall, a heat preservation veneer, a heat exchanging pipeline, a connecting pipeline and a heat source device, wherein the phase change wall is made of a shaped phase change material; the heat preservation veneer movably covers the surface of the phase change wall; the circulating heat exchanging pipeline is arranged in the phase change wall; the heat source device arranged at the external part of the phase change wall is connected with the heat exchanging pipeline through the connecting pipeline to form a closed circulating pipeline. According to the phase change wall system, the heat exchanging pipeline is arranged in the phase change wall made of the shaped phase change material and with the surface movably provided with the heat preservation veneer, and the heat source device arranged at the external part of the phase change wall is connected with the heat exchanging pipeline through the connecting pipeline to form the closed circulating pipeline, so that the phase change wall system stores heat of the heat source device in the phase change wall, during the heat storage process, the heat is isolated by the heat preservation veneer, and during the heat release process, the heat preservation veneer is moved away to release heat in the wall; therefore, the heat using demand of a room is reduced, and the purpose of energy conservation is realized.

The invention provides a building energy consumption monitoring and management system comprising a remote terminal, a server, an integral controller and at least one monitoring terminal; the at least one monitoring terminal is used for monitoring state information and / or energy consumption information of the corresponding room, and sending the state information and / or energy consumption information to the integral controller; the server receives the state information and / or energy consumption information from the integral controller, parses the information so as to determine whether the corresponding room has energy consumption abnormity or not, and if yes, the abnormity condition is sent to the remote terminal; the remote terminal receives a user order on the abnormity conditions, and sends the order to the server. The system and method can detect and present the energy consumption information in real time, can detect energy consumption abnormity in real time, such as positioning fault equipment and determining room payment skipping conditions, thus timely and easily eliminating faults, ensuring the whole building energy consumption safety, and the maintenance is simple and fast.

The invention provides an ecological restoration system for agricultural non-point source polluted farmland tail water. The system comprises a compound biological purification bed, wherein the compound biological purification bed is sequentially divided into an anaerobic section, an anoxic section and an aerobic section in the horizontal direction; the anaerobic section and the anoxic section are separated by a first partition plate provided with a water flow hole; the anoxic section and the aerobic section are separated by another first partition plate provided with a water flow hole; a height difference is formed between the water inlet and the water outlet of each of the anaerobic section, the anoxic section and the aerobic section; the anaerobic section and the aerobic section are filled with a filler for biofilm formation; the anoxic section is divided into n+1 sections by n guide plates provided with water flow holes; a height difference is formed between the water inlet and the water outlet of each section in the anoxic section; and an aeration pipe is further arranged in the aerobic section. The ecological restoration system achieves the effects of continuous purification process, adjustable biological treatment time, no need of sewage pumping, energy saving and consumption reduction. The compound biological purification bed is combined with other units to form a better ecological restoration system which is formed by sequentially connecting a grassed swale, a desilting basin, a simulated ecological ditch, a bioretention pond, the compound biological purification bed and an ecological system pond. The preferred system is more comprehensive in treatment process and higher in purification efficiency.

The washing machine comprises a drain pipe (75) communicated with the bottom of an outer tub (43), a feculent degree detection part (92) arranged inside the drain pipe for detecting the feculent degree of water according to the light transmittance degree, a cleaning hose (72) for connecting a water inlet valve (70) with the drain pipe and a control part (87). The feculent degrees of the tap waterentered via an inlet valve into the drain pipe and the cleaning liquid containing a cleaning agent in the drain pipe via the outer tub are compared by the control part so as to determine the type of the cleaning agent. Meanwhile, the time and the number during the washing and rinsing process are controlled by the control part, so that the cleaning agent is determined and the turbidity is detectedat an early stage with high precision.

The invention mainly discloses an air compressor energy-saving control method. A a frequency conversion starting mode and a power frequency starting mode are set for a motor of an air compressor; and the selection of the two modes are realized by a control circuit which is formed by a contactor. Frequency conversion starting is driven by a transducer; and control signals of the transducer for the motor are determined according to a pressure transmitter on an air reservoir of the air compressor. At the same time, in the method, a distributed control system DCS is adopted; the pressure transmitter is a data acquiring station of the DCS; the transducer is a controlled object of the DCS; and a remote computer or an industrial computer is used as an operator station or an engineer station of the DCS. The method has the characteristics of energy conservation, high control accuracy, low energy consumption and excellent performance.

The invention discloses a computer managing and controlling system for supplying heat to rooms according to demand. It is characterized in that: it is formed by a computer, a hose computer, sub computers, junction box, rooms and heat gas temperature detecting sensor, a three-way electric steering valve for controlling heating and a signal emitter controlled by user. Wherein, said computer collects the temperatures of room and heating gas all the time, and the heating demand parameters of each room set by users; then according to the set and temperatures to emit control order, to control the electric steering valve and / or user controls the electric steering valve to switch the connected ways; when the heating period is completed, it can automatically calculate the cost of each user according to the heating area and the time, and share collected information via internet, to improve the management level and detect heating quality.