292results about How to "Good energy saving effect" patented technology

The invention provides a multifunctional intelligent window. The intelligent window comprises a window frame, an upper suspended window body accommodated in the window frame, a shutter fixed on one inward side of the window frame and a transmission mechanism for adjusting the states of the upper suspended window body and the shutter; the intelligent window also comprises an outdoor environment detector, an indoor environment detector and a control system; the outdoor environment detector and the indoor environment detector are electrically connected with the control system; and the control system adjusts the states of the upper suspended window body and the shutter through the transmission mechanism. The intelligent window has the advantage of more reasonable structural design. The upper suspended window body, the shutter and the execution mechanism of the multifunctional intelligent window are relatively independent, but the signal and the control mode for controlling the intelligent window by the control system are integral, namely the upper suspended window body and the shutter are designed to be independently used in a remote control operating mode and also can be used as a whole for realizing all intelligent functions in a self-control mode.

The invention discloses a power controlling device and way for a hydraulic power system, which is used for a hydraulic power system for which an engine supplies power, and comprises a main-pump pressure sensor arranged at the outlet of the main pump of the hydraulic system for detecting the system pressure, a pilot pressure sensor arranged at the outlet of the pilot handle for detecting the pilot pressure; a load calculator for receiving the output values from the main-pump pressure sensor and the pilot pressure sensor, and calculating the demanded load power; a throttle setter for receiving the demanded load power and selecting the corresponding control strategy depending upon the demanded load power and the current operation condition of the machine, determining the openness setpoint for the engine throttle and outputting the setpoint to the throttle to control the engine throttle according to the control strategy and actual demanded load power. The device in the invention can control the engine to work on a proper operation point, so that the power output matches with the power demand for the engine, and optimal energy saving can be achieved.

This invention discloses a preparing method of ceram site fully using biosolid and sludge, including steps as follows: a, mixing materials; b, preparing particles; c, sintering at temperature of 1000-1300 degrees centigrade after pre-heating for 5-20 minutes; cooling at temperature of 50-200 degrees centigrade for 10-30 minutes after sintering, thereby preparing finished ceram site product. Accordingly, this invention makes effective use of urban mud, and changes industrial waste solid into valuable; further, this utilyit model is low in preparation cost and suitable for large-scaled production.

The invention provides a plate type air preheater with glasses as heat exchange plates, belonging to the technical field of heat exchangers. The plate type air preheater comprises an air preheater frame, the air preheater frame comprises an upper cover plate (10), a lower bottom plate (11) and a stand column (5) and is internally provided with a plurality of heat exchange plates (1) which are correspondingly placed in vertical direction; a sealing strip (4) is arranged between every two heat exchange plates (1) which are adjacent in vertical direction; the sealing strips (4) are mutually staggered at 90 degrees and form a plurality of sealing fluid channels which are adjacent and mutually staggered at 90 degrees by being placed in a staggered way so as to respectively form hot fluid channels and cold fluid channels; rectangular glass plates are adopted as the heat exchange plates (1), and the glass can be silicon-boron glass and boron-free low-alkali glass or quartz glass; and supporting strips (2) which are rectangular or S-shaped nonmetal plate bars are arranged among the fluid channels formed by the upper and lower heat exchange plates (1). The invention has dew point corrosion resistance, efficiently recovers the low-temperature exhaust heat of smoke and can reduce the temperature of discharged smoke and enhance the efficiency of a heating furnace.

The invention provides a floor type air conditioner, which comprises a shell, a main volute, a wind wheel and a first driving mechanism, wherein the shell is provided with an upper air outlet and a lower air outlet; the main volute is arranged in the shell; the main volute is located between the upper air outlet and the lower air outlet; the main volute is provided with an exhaust outlet; the wind wheel is arranged in the main volute; an air inlet which corresponds to the wind wheel is also formed in the shell; the first driving mechanism is used for driving the exhaust outlet to rotate around the wind wheel. According to the floor type air conditioner provided by the invention, the air direction is changed through the rotation of the main volute; when the outlet of the main volute faces up, the upper air outlet is opened to achieve the goal that cold air is blown out from the upper air outlet during refrigeration; when the outlet of the main volute faces down, the lower air outlet is opened to achieve the goal that hot air is blown out from the lower air outlet during heating; the comfort level of the air conditioner is greatly improved, and meanwhile, a very good energy-saving effect is achieved during heating.

The invention provides a combustion control system and method of an industrial furnace. The combustion control system of the industrial furnace comprises a laser spectrum detection device, a combustion control device, an oxidation burning loss detection device, a comparison device and a computing device, wherein the laser spectrum detection device is used for detecting the content of gas in the industrial furnace, the laser spectrum detection device comprises a laser, a detector and an analysis module, the combustion control device is used for optimizing and adjusting the combustion conditions in the industrial furnace according to data transmitted by the laser spectrum detection device, the oxidation burning loss detection device is used for detecting oxidation burning loss of workpieces which pass through the industrial furnace, and transmitting the detection result to the comparison device, the comparison device is used for obtaining the comparison result according to the received detection result and the original oxidation burning loss conditions, and transmitting the comparison result to the computing device, and the computing device is used for obtaining the combustion control result of the industrial furnace according to the received comparison result. The combustion control system and method of the industrial furnace have the advantages that detection accuracy is high, the detection speed is high, the cost is low, and energy is saved.

The invention discloses a flameless combustion heat accumulating type flat flame combustion nozzle. A combustion nozzle body is internally provided with an air or smoke gas passage, a porous heat accumulator, a combustion cavity, a gas pipeline and an ignition device, wherein the tail end of the air or smoke gas passage is provided with a tangential air inlet duct positioned along the tangential direction of the circumferential combustion cavity, and the air or smoke gas passage is connected with the combustion cavity through the tangential air inlet duct; the tail end of the gas pipeline is provided with a flame combustion gas pipe and a flameless combustion gas pipe which are parallel and respectively controlled by a flame combustion control valve and a flameless combustion control valve, and the aperture of a flameless combustion gas spray orifice positioned on the tail end of the flameless combustion gas pipe is smaller than that of a flame combustion gas spray orifice positioned on the tail end of the flame combustion gas pipe. The flameless combustion heat accumulating type flat flame combustion nozzle has high energy utilization efficiency and good furnace temperature uniformity and can greatly reduce the discharge amount of NOX; fuel is sprayed at high speed through the necking spray orifice, thereby effectively controlling the flame temperature and being beneficial tothe sufficient combustion of the fuel; and in addition, the flame sprays into a furnace cavity with a very short spraying distance so as not to spray to parts inside the furnace cavity.

The invention discloses a momordica grosvenori drying process which comprises the following steps: cleaning fresh momordica grosvenori, putting the momordica grosvenori in steam at the temperature of 90-110 DEG C to deactivate enzyme for 2-3 minutes; freezing the momordica grosvenori subjected to enzyme deactivation under the condition of the temperature of 30-35 DEG C below zero for 1-1.5 hours, and performing vacuum low-temperature dehydration on the momordica grosvenori in vacuum microwave drying equipment for 30-35 minutes; and finally, drying the treated momordica grosvenori under the conditions of the temperature of 30-50 DEG C and the humidity of 10-15 percent for 6-10 hours. According to the improved momordica grosvenori process, the momordica grosvenori processing yield and the momordica grosvenori processing quality are improved, the cost and the energy are saved, and the momordica grosvenori is industrially processed and dried in a large scale.

The invention discloses a distributed system which is capable of realizing control of energy saving and consumption reducing and a method thereof. The distributed system comprises a master control set and at least two business processing devices. The control method includes the following steps: A. the master control set configures an energy saving and consumption reducing mode for each business processing device, and the energy saving and consumption reducing mode includes at least one of a resting energy saving mode and a lower electric energy saving mode; B. according to the business load of each business processing device, the master control set decides the energy saving and consumption reducing rule of each business processing device and controls each business processing device to adjust the working state according to the decided energy saving and consumption reducing rule. The distributed system and the method of the invention have the advantages that the load equipartition principle of the distributed system is not changed, good energy saving effect and simple and convenient energy saving and consumption reducing treatment of the whole system.

The invention discloses an energy-saving method of an air conditioner, which comprises the steps of selecting an energy-saving mode according to the current demand, and performing corresponding energy-saving control according to the selected energy-saving mode, wherein the energy-saving mode comprises a low consumption mode, a constant temperature mode, an off-peak mode and an electricity limiting mode. According to the method, one energy-saving mode is selected according to the current demand, and then the corresponding energy-saving control is performed according to the selected energy-saving mode, the corresponding energy-saving mode can be started for different working environments, the problem of a single function of the energy-saving mode in the prior art is solved, and the energy-saving effect of the air conditioner is more ideal. The invention further discloses an energy-saving device of the air conditioner.

The invention provides a distributed solar energy cascade utilization system and belongs to the field of solar energy utilization. The system mainly comprises a main solar energy generating system and a residual heat utilization system. In the main solar energy generating system, a high-temperature heat collector, a steam turbine, a first heat exchanger and a circulating pump are connected in turn to form a water circulating passage; an electric generator is connected with the steam turbine; and an electrical storage device is connected with the electric generator. In the residual heat utilization system, a first heat exchanger, a hot water system, a refrigerating system or a heating system and a circulating pump are connected in turn to form a water circulating passage, wherein the main generating system is connected with the residual heat utilization system through the first heat exchanger. The system aims to realize synchronous supply of cold, heat and electricity by using solar energy so as to meet the requirements of residents on basic energy sources in daily life.

The invention provides a hot water supply system and method using solar energy preferentially. The system comprises a water heating tank and a heat accumulation tank, bilateral control of water flow between the water heating tank and the heat accumulation tank is achieved through two pipelines, one pipeline is provided with a water changing circulating pump, the water heating tank is in two-way connection with a solar thermal collector, the other pipeline is provided with a solar circulating pump, and the bottom of the water heating tank is respectively connected with a cold water opening and an air source heat pump. The system and the method of the invention can enable the solar circulating pump and the air source heat pump to alternatively heat and give play to the advantages of each other, take full advantage of solar energy while giving play to the energy-saving advantage of the air source heat pump, ensure available hot water at any time while meeting hot water supply during the hot water use peak in the afternoon and in the evening. In addition, the system is easy to control and the energy saving effect is very good.

The invention relates to a heat pump type fruit and vegetable drying machine. The heat pump type fruit and vegetable drying machine comprises a drying box, an internal partition board, a circulating fan, fruit and vegetable plate shelves, a compressor, a condenser, a first evaporator, a second evaporator, a throttling valve, a first electromagnetic stop valve, a second electromagnetic stop valve and a water pan. The drying box is divided into an air processing chamber and a drying chamber by the internal partition board. The circulating fan is mounted at the upper portion in the drying box. The compressor, the condenser, the throttling valve, the first electromagnetic stop valve and the first evaporator are connected in an end-to-end mode to form a circulating loop. The pipeline from the throttling valve to the first electromagnetic stop valve is outwards connected with the second electromagnetic stop valve and the second evaporator in sequence. An outlet of the second evaporator is connected with the pipeline from the first electromagnetic stop valve to the compressor. The condenser is mounted above the air processing chamber in the drying box. The second evaporator is mounted below the air processing chamber in the drying box. The first evaporator and the compressor are mounted outside the drying box. The heat pump type fruit and vegetable drying machine has the advantages of being capable of saving energy and keeping the original quality of fruits and vegetables, and being free of secondary pollution and the like.

The invention relates to an energy-saving self-heat-insulation ceramsite building block and its manufacturing method and forming mould. The energy-saving self-heat-insulation ceramsite building block is made of, by weight, 35-50% of ceramsite, 20-29% of cement, 15-30% of coal ash, 0.5-1% of fibers, 2-5% of foaming agent, 0.3-0.5% of water reducing agent, 0.1-0.3% of waterproof agent and 0.2-0.5% of catalyst, wherein the volume of the ceramsite accounts for more than 80% of that of the whole building block. The manufacturing method of the building block includes steps of material selecting, metering, stirring, pouring, vibrating, steaming, tube drawing for demoulding, cutting forming and stacking for rest. The forming mould of the building block can be used for once forming of multiple medium-sized rectangular ceramsite building blocks, and each building block can be conveniently cut into standard small ceramsite building blocks. The energy-saving self-heat-insulation ceramsite building block is high in ceramsite content and has the advantages of light weight, warm retention, heat insulation, sound insulation, sound adsorption, low water adsorption, fire resistance, freezing resistance, quake proofing, corrosion resistance and the like.

The invention discloses an invisible intelligent full-automatic outer sun-shading system, comprising a roller shade box, wherein two ends of the roller shade box are connected to the wall by a head installing seat and a trail installing seat. The invisible intelligent full-automatic outer sun-shading system also comprises a plurality of roller shade pieces, wherein one end sof the roller shade pieces are connected to the roller shade box and the other ends are vertically arranged. The invisible intelligent full-automatic outer sun-shading system also comprises a temperature/light sensor, a controller, a clock controller, an electric rotating motor, an unrolling and rolling electric motor and a turning wheel which are sequentially electrically connected, wherein the clock controller, the electric rotating motor, the unrolling and rolling electric motor and the turning wheel are arranged in the roller shade box; and a leading cable is connected with the electric rotating motor, and one ends of the roller shade pieces are connected to the leading cable. The three-dimensional full-weather automatic control of the outer sun-shading system is realized, the heat-proof quality of the sun-shading system is effectively improved, most of sunlight heat can be reflected and shaded; the outer sun-shading system can avoid that the solar radiation directly enter into the indoor room, is beneficial to the prevention of the fluctuation of the indoor temperature, reduces the cold and hot load loss of the air-condition, greatly improves the heat insulation and daylighting performance of the common sun-shading system and the performance of the air-condition system, and achieves better energy saving effect.

The invention provides a CO sulfur tolerant shift method for preparing methanol synthesis gas. The method at least comprises the following two stages of shift: crude gas is pretreated and is heated up to 180 to 260 DEG C, the gas enters a first reactor for the shift reaction when a water to gas volume ratio is 0.1 to 0.55, the bed temperature is 330 to 420 DEG C, and the CO volume content is 36 to 48 percent after the first shift reaction; and the gas from the first reactor is cooled down to 200 to 280 DEG C through heat exchange and water spray, the gas enters a second reactor for the shift reaction when a water to gas volume ratio is 0.1 to 0.75, the bed temperature is 390 to 450 DEG C, and the dry basis CO volume content in the final outputted gas is 8 to 35 percent. A CO sulfur tolerant shift catalyst is used during the two stages of shift. The outputted gas at the second stage can be directly used or for preparing the methanol synthesis gas or be used for preparing the methanol synthesis gas after a third stage of deep shift gas distribution. The method has the advantages of low water to gas ratio, energy conservation, low equipment cost, wide raw material sources, and the like.

A mining explosion-proof all-insulation dry type transformer with an amorphous alloy iron core for a mobile transformer substation comprises an integral winding, the iron core, an upper clamp, a lower clamp and a shell, wherein the integral winding includes low-voltage coils and high-voltage coils. The mining explosion-proof all-insulation dry type transformer is characterized in that insulation layers are arranged among layers of the low-voltage coils, the high-voltage coils are arranged on the outer layer of the low-voltage coils, each insulation layer is arranged between each two adjacent layers of the high-voltage coils, an outer insulation layer covers the high-voltage coil, and the integral winding has the square section. The iron core is the amorphous alloy iron core, and an assembling lap joint of the iron core is arranged on the lower portion. The upper clamp and the lower clamp are non-metallic parts cast by epoxy resin and reinforced by filled glass fibers, the U-shaped sections of the upper clamp and the lower clamp cap the upper yoke and the lower yoke to press the upper end face and the lower end face of the winding and are fastened by pull bolts, and the pull bolts are symmetrically mounted on the low-voltage side and the high-voltage side to fasten the upper clamp and the lower clamp. The mining explosion-proof all-insulation dry type transformer has the advantages of long service life, low loss, low noise, no maintenance or pollution, high reliability, flame retardance, fire resistance, recyclability after being used up and the like.

The gently water energy conserving warm-air valve sloves the techonology problem that the blast funace warm-air pipeline valve can not be used normally, which includes valve body, valve cover, valve board. The valve body, valve cover and right-and-left flange shell uses layered refractory material lining covering, the water-cool pipeline is arranged on the right-and-left flange seal surface. And the symmetry face of the outside valve board also uses layered refractory material lining covering, the water-cool pipeline is arranged in its inner part. The related used layered lining covering includes heat preservation layer, heat insulation layer and hegh temperature layer; each one can use fire-proof lightening cast material and heavy cast material. Wherein the water using quantum is only equal to 25í½30úÑ water quantum of the warm-air valve, and it can reduce wind temperature lost, improve the wind temperature by 10í½20íµ, bear some large heat impact and heat fluctuate, have long longevity.

The invention discloses a testing system for testing a wind generating set pitch system comprising an upper computer, a pitch system and a loading system, wherein the pitch system and the loading system are respectively connected to the upper computer through communication cables, and the pitch system is connected with the loading system; the pitch system comprises a pitch drive and a pitch motor, and the pitch drive is connected with the pitch motor; the loading system comprises a loading controller, a DC motor and a torque speed sensor, the loading controller is a DC speed regulator, the upper end of the DC speed regulator is connected with an AC power supply, the lower end of the DC speed regulator is connected with a DC motor, the DC motor is connected with a pitch crank set through a booster engine, and the pitch crank set is connected with the pitch motor through a speed reducer; the torque speed sensor is respectively connected with the upper computer, the booster engine and the pitch crank set, and the torque speed sensor and the pitch drive are connected with the upper computer through communication cables; and the testing system tests the blower pitch system in a workshop by simulating the actual working condition.

The invention discloses a high-precision hydraulic power source which uses a speed regulating motor to drive an oil pump directly, and belongs to the technical field of hydraulic power installation. The high-precision hydraulic power source comprises an actuating mechanism, a reversing valve, an oil tank, servo drive units, a data acquisition and control system, and a feedback unit, wherein the reversing valve is connected with the actuating mechanism, the servo drive units are connected with the reversing valve, the data acquisition and control system is connected with the servo drive units, the feedback unit is connected with the data acquisition and control system, and the actuating mechanism is connected with the feedback unit; and the servo drive units have two groups which are parallelly connected with the reversing valve, one group of the servo drive units is in charge of controlling the oil feed for the actuating mechanism, while the other group is in charge of controlling the oil discharge for the actuating mechanism. The high-precision hydraulic power source has the advantages of energy conservation and high control precision.

The invention discloses a novel solar heat tube heat collection and storage radiant heating system, and belongs to the field of solar energy utilization. The system comprises a heat insulation light transmitting cover, an internal heat tube group, an external heat tube group, a heat conduction external box, a fixing device and an indoor heat radiation device, wherein an evaporation end of the internal heat tube group can be provided with a selective coating, so that the system performance is enhanced; and heat exchange coil heating water can be placed in the heat conduction external box in summer, so that domestic hot water is provided. The system uses the unidirectional heat conduction characteristic of gravity assisted heat tubes, solar energy is absorbed at evaporation ends of the heat tubes, and heat is released from condensation ends, so that heat is transferred to the interior continuously, and radiant heating is realized through the indoor heat radiation device. The system is cheap and practical, requires no secondary cost, and also can be used as an auxiliary heating device and a main heating system.

The invention claims a composite gas drag reducer and a preparation method thereof. The method comprises the following step of: reacting organic dibasic acid or organic binary acid anhydride, organic amine and monocarboxylic acid with a long carbon chain, thereby obtaining the composite gas drag reducer, wherein the specific steps the reaction are as follows: (1) reacting the organic dibasic acid or organic binary acid anhydride and the organic amine in an inert atmosphere, (2) adding the monocarboxylic acid with the long carbon chain to the reaction system of the finished reaction in the step (1), thereby obtaining the composite gas drag reducer via reaction. The composite gas drag reducer is obvious in drag reduction of the pipeline gas and energy conservation, and has the advantages of cheap and easily available raw material, simplicity in operation, mild reaction conditions, simple processes, low equipment requirements and easiness for industrial production.

The invention relates to an energy-saving system of a double-speed same electrical system and synchronous diesel generator assembly, which comprises a diesel generator assembly, at least one breaker, a central control system, a function choosing module, a diesel generator assembly control module and a power switching module. A signal of the function choosing module enters the central control system which controls the on and off of the breaker by outputting a signal according to the input signal; the speed of the diesel generator assembly is controlled by the output signal of the central control system via the diesel generator assembly control module; the power which meets the requirements of the national grid is obtained from the output power of the diesel generator assembly through the power switching module. The system overcomes the problem of low efficiency of a variable-speed generator and has high overall efficiency and obvious energy-saving effects; the invention does not change the structure and working pattern of the existing generator, protects the existing investment and ensures that the project can be easily promoted.

The invention discloses a system and a method for recycling waste heat of cooling circulated water of an air compression station. The system comprises an upper computer, a distributed control system (DCS) control cabinet, a cooling circulated water pipeline of an air compressor, a water charging pipeline of a boiler deaerator, an absorption heat pump unit and a cooling tower pipeline. The method for recycling the waste heat comprises the following steps of: extracting the waste heat of the cooling circulated water of the air compressor by the absorption heat pump unit to heat the boiler deaerator for water charging; and delivering redundant waste heat to a cooling tower for cooling so as to ensure the normal operation of the air compressor. By the system and the method, the waste heat of the cooling circulated water of the air compressor can be completely or partially recycled according to heat supply demand to achieve the purposes of remarkably saving energy and water resources.

The invention discloses a method for lowering the power consumption of a base station base band plate. Each base band plate respectively comprises a plurality of digital signal processors. The method comprises the following steps: calculating the amount of users accessing into the digital signal processors of the base band plate; according to the change of the accessing user amount, adjusting frequency/ or electrifying and cutting power to the digital signal processors of the base band plate. The invention can use smaller power consumption to adjust granularity to obtain better energy saving effect. The invention also provides a system for lowering the power consumption of the base station base band plate, a frequency modulator, a power-on/ power-off device, a main frequency point DSP electrifying rotation device and the like.

The invention discloses a method for quenching medium and low carbon alloy structural steel workpieces, which comprises the following steps: a, placing medium and low carbon alloy structural steel workpieces to be quenched into a quenching furnace, heating until the furnace temperature is higher than normal austenitizing temperature by 100-200 DEG C for preserving the temperature till the workpieces are sufficiently burnt; b, selecting quenching liquid corresponding to materials of the workpieces, adding the quenching liquid into a quenching groove and intensively stirring; sufficiently burning and then placing the workpieces into the quenching liquid to quench. The quenching method can overcome the defects of large energy consumption, poor environmental protection, and the like in the prior art so as to realize the advantages of low energy consumption, good environmental protection, high toughness and difficult rustiness and can meet the requirement of low-temperature impact toughness of a hoisting rigging industry.

The invention provides a CO2 gas-stripping parallel/serial connection medium-pressure urea energy-saving and yield-increasing novel technology. The conventional CO2 gas-stripping urea technology equipment is parallelly connected to a medium-pressure decomposition system, is serially connected to a medium-pressure pre-separator and an evaporation pre-condensation system, and is added with a medium-pressure methylamine recycling system. In a urea synthesis tower, materials are divided into two parts according to a certain ratio, one part of the materials is transported to the medium-pressure decomposition system and is subjected to processes of flash separation, liquid rectification, thermal decomposition, and CO2 air stripping; the other part of the materials is discharged from a CO2 stripping tower, then is decompressed, and finally is subjected to flash separation in the medium-pressure pre-separator; the urine in the medium-pressure system is decompressed and then transported to a low-pressure rectification tower; the medium-pressure decomposition gas phase and the low-pressure methylamine are mixed and transported to the heat utilization section shell pass of an evaporation pre-condensation device, and the urine in the tube pass is heated to evaporate and thus is condensed by utilizing the heat generated by bubbling reactions. The CO2 air-stripping parallel/serial connection medium-pressure urea energy-saving and yield-increasing novel technology can increase the production capacity by 30 to 60% or more compared to that of original CO2 air-stripping urea device, and has the advantages of simple technology process, convenient operation control, reduction on steam and electricity consumption, and high reconstruction investment profit.

The invention provides a machine room air-conditioning energy-saving operation control system, mainly comprising a control host (1), a temperature compensation box (2) and a temperature sensor (3). The system is characterized in that the temperature compensation box (2) and the temperature sensor (3) are connected with the control host (1) through a data wire to form a complete control system, wherein the control host (1) comprises a temperature set module (11), a temperature detection module (12), a difference comparison module (13), a different determination module (14) and a compensation output module (15); the temperature sensor (3) is arranged on equipment required to be refrigerated; a target object is strictly taken as direction to realize accurate temperature control; the temperature compensation box (2) is made of refrigerating semi-conductor, and is connected with a return air temperature probe on an air return port (41) of an air conditioner (4); and the control host (1) controls the temperature compensation box (2) to perform temperature correction and compensation on return air temperature of the air conditioner (4) at proper time, and controls and adjusts the start and stop operation of a compressor of the air conditioner (4) so as to achieve the designing aim.

The invention belongs to the technical field of air source heat pumps, and particularly relates to an energy-saving control method for a variable-frequency heating heat pump. The method comprises thesteps that firstly, an operation frequency control mathematical model of a variable-frequency compressor is built, and the operation frequency of the variable-frequency compressor is set according tothe real-time load requirement, wherein the real-time load requirement is related with environment temperature, water temperature, set target water temperature, water temperature change rate and the corresponding optimal efficiency frequency under the environment temperature and water temperature; secondly, the function relation of the optimal energy efficiency superheat degree phi with the operation frequency of the compressor, environment temperature and water temperature under different environment temperature and water temperature is built, and the opening degree of an electronic expansionvalve is adjusted according to the deviation value of the real-time superheat degree and the real-time optimal energy efficiency superheat degree. A control system built on the basis of the control method can make the variable-frequency heating heat pump always operate with the optimal energy efficiency and achieve the best energy-saving effect, and the energy-saving advantage of the variable-frequency heating heat pump is fully played.

The invention discloses a control device of an air compressor. The control device comprises an air storage tank communicated with the air compressor, a clutch connected between the air compressor and an engine as well as a control unit, wherein the clutch is an air clutch and is communicated with the atmosphere or the air storage tank through a first directional control valve; a pressure sensor is arranged on the air storage tank; the control unit controls the directional control valve to switch according to the detection value of the pressure sensor so as to enable the air clutch to be in an engaged state or a disengaged state. According to the control device, no additional energy such as a power generator and the like is required, the power loss of the engine can be effectively reduced, so that the power performance of the engine is improved, the oil consumption of the engine can be reduced, and the energy saving performance is good.