219results about How to "Solve the problem of high energy consumption" patented technology

The invention provides an air energy water heater and a control method and device for the same. The control method comprises obtaining historical time data of utilization of hot water in the air energy water heater by users; determining starting time of the air energy water heater according to the historical time data; controlling the air energy water heater to be started to operate according to the determined starting time. By means of the air energy water heater and the control method and device for the same, the air energy water heater can be controlled to be started to operate according to user own water consumption habits, so that hot water can be provided as user required, frequent heating is not required, and energy-saving control is effectively achieved.

The invention discloses an air conditioner and a method and a device for controlling the same. The method includes acquiring a target temperature of the air conditioner when the air conditioner enters a sleep mode; determining a working mode of the air conditioner; controlling a running temperature of the air conditioner to be increased on the basis of the target temperature when the air conditioner runs in a refrigerating mode, and increasing the running temperature by a first preset temperature at each first preset interval; and controlling the running temperature of the air conditioner to be increased on the basis of the target temperature when the air conditioner runs in a heating mode, and reducing the running temperature by the first preset temperature at each first preset interval. The air conditioner, the method and the device have the advantages that when the air conditioner runs in the sleep mode, the requirement of users on comfortableness can be met, and the energy consumption of the air conditioner can be reduced.

The invention relates to an ECG (electrocardiograph) access card identity identification method and system. The method comprises the following steps: a client side collects electrocardio data of users and sends the electrocardio data to a server side; and the server side carries out analysis pretreatment on the electrocardio data, acquires the matching result of the electrocardio data and preset electrocardio data through a preset matching algorithm, and controls the opening and closing of an access control system. According to the invention, human biological characteristics (electrocardiogram) are introduced to the existing access control system for identity identification, and preset electrocardio data is set as matching keys according to the mood of human beings, thus lowering the repeatability of authentification data, strengthening the safety of the access control system. A Zigbee short-distance wireless transmission technique is adopted in the access control system, users can operate the system more conveniently, and the problem of higher energy consumption of the existing wireless transmission can be solved; and the efficient and practical ECG data matching algorithm can be used, thus realizing rapid matching and identification of the data, and improving the identification accuracy and response efficiency of the access control system.

The invention discloses a data communication method and device. The method provided by the invention comprises the steps that a first network device transmits a first beam identification configuration message to a second network device through a low frequency communication link, wherein the first beam identification configuration message is used for indicating the second network device to measure the beams of a currently transmitted beam identification signal and select the first beam with a first measured value which satisfies a first threshold, and the currently transmitted beam is a part of or all beams of the first network device; the first network device receives first beam selection information transmitted by the second network device; and the first network device establishes a high frequency communication link with the second network device according to the first beam selection information and closes a part of beams of the currently transmitted beam identification signal. According to the invention, the problem of large energy consumption of a high frequency station, which is caused by the fact that high frequency station needs to continuously transmit beams in all directions in the high frequency communication manner in the prior art, is solved.

The invention provides an anchor rod drill truck. The anchor rod drill truck includes a machine frame body, a frequency conversion speed regulation walking mechanism, an electrical control system, a hydraulic system, a directional cruise control and step distance measurement system, front and rear stabilizing devices and an anchor drill system. The anchor drill system comprises a telescopic working arm, a drilling frame, a laying net and temporary support mechanism and an automatic catridge jetting system. The frequency conversion speed regulation walking mechanism is installed on a chassis ofthe anchor rod drill truck, the telescopic working arm is connected with the machine frame body in a pinned mode, and the drilling frame is connected with the front end of the telescopic working armthrough a rotating hydraulic device of the telescopic working arm. The hydraulic system and the rotating hydraulic device are arranged correspondingly, and the directional cruise control and step distance measurement system and the variable frequency speed regulating walking mechanism are arranged correspondingly. The front and rear stabilizing devices are arranged at the front and rear ends of the machine frame body separately. The anchor rod drill truck solves the technical problems that in the prior art, installation of an anchor, disassembly and assembly of a drilling rod and catridge workare carried out manually so that physical consumption of operators is large, and the operators are threatened by dust environment and roof collapse which is prone to being occurring in roof areas.

The invention discloses a heat pump air conditioning system, an electric vehicle and a control method thereof. The heat pump air conditioning system comprises an enthalpy compressor (11), a first indoor heat exchanger (32), a flash evaporator (12) and an outdoor heat exchanger (31); an exhaust end of the enthalpy compressor (11) communicates with a refrigerant inlet of the first indoor heat exchanger (32); a refrigerant outlet of the first indoor heat exchanger (32) communicates with a first inlet and outlet end of the flash evaporator (12); a second inlet and outlet end of the flash evaporator (12) communicates with a first refrigerant inlet and outlet of the outdoor heat exchanger (31); a second refrigerant inlet and outlet of the outdoor heat exchanger (31) communicates with a suction end of the enthalpy compressor (11); and an air supply end of the flash evaporator (12) communicates with an air supply opening of the booster compressor (11). According to the scheme, the defects of large energy consumption, inconvenient operation and poor user experience in the prior art can be overcome, and the beneficial effects of small energy consumption, convenient operation and good user experience are achieved.

The invention relates to an inflatable hanging air conditioning comforter and an air conditioning mattress pad, in particular to an inflatable hanging comforter and a mattress pad with an air conditioner for regulating sleeping microenvironment. The air conditioner is arranged inside a bedside cabinet and composed of a refrigerator, a heater, a fan, a fan coil pipe, an air outlet pipe, a cold / hot water tank, a water circulating pump and a throttling valve; an inflatable supporting pipe and a blower pipe are arranged inside the air conditioning comforter, after inflation, the air conditioning comforter has a camp shape with the front, the back, the left, the right and the top five faces, and an air inlet port of the blower pipe is connected with the air outlet pipe of the air conditioner; a snake-shaped water pipe is arranged inside the air conditioning mattress pad, the water inlet port and the water outlet port of the snake-shaped water pipe are connected with the cold / hot water tank of the air conditioner; and the air conditioning comforter is connected with the left, the back and the right sides of the air conditioning mattress pad via zippers to form a sleeping microenvironment. The air conditioner is used for generating and delivering cold air or hot air and cold water or hot water into the comforter and the mattress pad for refrigerating or heating. All the electrical devices in the inventive comforter and mattress pad are arranged inside the bedside cabinet. The inventive comforter and mattress pad have the advantages of low energy consumption, comfort, convenient service, good health care effect, and safety.

The invention belongs to the technical field of water treatment, and relates to a method for removing sulfide from wastewater. In the method, a wastewater treatment container which is provided with a wastewater inlet and a wastewater outlet is arranged, wherein the top of the container is closed and provided with an air outlet; a dissolved air releaser is arranged below the liquid level in the container; an air dissolving device is arranged outside the container, and air is dissolved in the wastewater under high pressure; the wastewater which is needed to be treated passes through the container, and all of or part of the wastewater passes through the air dissolving device, so that a large amount of air is dissolved in the wastewater under the high pressure to form dissolved air water; anda large amount of oxygen dissolved in the dissolved air water reacts with the sulfide under the high pressure to oxidize the sulfide, the dissolved air water enters the container through the dissolved air releaser, pressure is suddenly reduced, the air dissolved in the dissolved air water and the sulfide in the form of hydrogen sulfide in the wastewater are separated out simultaneously to form small bubbles to be separated from the wastewater, and the residual sulfide is removed from the wastewater, so that the sulfide is removed from the wastewater. The process is simple, convenient to operate and stably operated.

The invention discloses an anti-condensation control method and an anti-condensation control device for a combined air conditioner, and the combined air conditioner. The method comprises the following steps: acquiring the wet-bulb temperature of an environment where the combined air conditioner is located under a refrigeration mode of the combined air conditioner; determining whether the wet-bulb temperature is lower than or equal to a preset dew-point temperature; and adjusting the opening degrees of an air valve and / or a water valve of the combined air conditioner when the wet-bulb temperature is lower than or equal to the dew-point temperature, so as to enable the current wet-bulb temperature of the environment after the adjustment to be higher than the dew-point temperature, and realize anti-condensation control for the combined air conditioner. The scheme of the invention is capable of overcoming the defects of high energy consumption, small application range, high possibility of environment pollution, and the like in the prior art, and realizing the beneficial effects of low energy consumption, large application range and low possibility of environment pollution.

The invention discloses an efficient and energy-saving gas-liquid coupling oxidation desulfurization and denitrification device which comprises an absorption tower. A flue gas inlet is formed in the lower portion of the absorption tower, the absorption tower is internally provided with a demisting section, an absorption section, an oxidation section and a concentration section from top to bottom, the demisting section comprises a primary demister arranged on the upper portion of the absorption tower, a water washing layer is arranged below the primary demister, the absorption section comprises absorption layers located below the water washing layer, the concentration section comprises a concentration spray layer arranged above the flue gas inlet and a concentration tank located at the tower bottom of the absorption tower, the oxidation section comprises an oxidation tank, ozone is introduced into the oxidation section, the oxidation tank is arranged between the absorption layer and the concentration spray layer and connected with the concentration spray layer, a hydrogen peroxide solution introducing pipe is arranged on the portion, located above the oxidation tank, of a desulfurization tower oxidation section, the demisting section comprises an absorption tank communicated with the tower top of the absorption tower, the absorption tank is arranged on one side of the absorption tower, a flue gas outlet is formed in the absorption tank, and the flue gas outlet is internally provided with a secondary demister. The efficient and energy-saving gas-liquid coupling oxidation desulfurization and denitrification device has the advantages of improving the adsorption efficiency and saving energy.

The invention discloses a method for producing glass fibre by the utilization of quartzitic sandstone. The method provided by the invention comprises the following steps: S1, respectively weighing the following raw materials for later use: by weight, 25-60 parts of quartzitic sandstone, 5-50 parts of pyrophillite or bauxitic clay, 3-18 parts of quicklime or 4-35 parts of limestone, 0-15 parts of dolomite, 0-17 parts of calciborite and 1-5 parts of fluorite and a clarificant; S2, grinding the raw materials into powders; S3, mixing; S4, founding; S5, entering an operation channel and flowing out; S6, preparing a precursor; and S7, drying to obtain the glass fibre. The method provided by the invention has the following beneficial effects: dependence on pyrophillite is minimized even eliminated; raw material cost is greatly reduced; production technology is stable; environmental pollution and occupational health risk are decreased; there is no need to add a lot of high-purity quartz; mixing is easy; and kiln burdening difficulty is low. The method has characteristics of energy conservation and high market competitive capacity.

The invention belongs to the technical field of nucleic acid detector equipment, and particularly relates to an isothermal amplification nucleic acid detector. The detector comprises a shell, a constant temperature control module, an optical detection module and a control module, wherein the shell comprises an outer shell and a shell upper cover; the constant temperature control module comprises a test tube bearing plate, a heat conducting plate, a heating plate, a cooling fin, a cooling fan and a temperature sensor; the optical detection module comprises a light source generator, a lens, an optical filter, a total reflection mirror and a fluorescence detector; and the control module comprises a control circuit and a data processor. The instrument can quickly perform nucleic acid amplification detection in real time at a constant temperature, has the characteristics of low energy consumption, small size, convenience in carrying, simplicity in operation and the like, and can be applied to multiple fields such as nucleic acid molecule laboratories, medical diagnosis, field detection and the like.

The invention relates to a high-back-pressure heat supply system energy-saving optimization method. A heat supply system comprises a high-back-pressure heat supply unit, a No.1 steam extraction and heat supply unit, a No.2 steam extraction and heat supply unit, a heat supply network first-station heat exchanger, an industrial heat supply user side and a resident heat supply user side; the high-back-pressure heat supply unit, the No.1 steam extraction and heat supply unit and the No.2 steam extraction and heat supply unit are cogeneration units; electricity generating and heat supplying are simultaneously carried out according to an electrical load demand of a power grid and a heat load demand of a heat supply network; the heat supply network first-station heat exchanger is a steam-water heat exchanger; a steam side is connected with steam extraction and heat supply pipelines of the No.1 steam extraction and heat supply unit and the No.2 steam extraction and heat supply unit; a water side is connected with circulating water of the high-back-pressure heat supply unit; the industrial heat supply user side requires high-temperature steam and is heated by the No.1 steam extraction and heat supply unit and the No.2 steam extraction and heat supply unit; and the resident heat supply user side requires high-temperature hot water and is heated by the high-back-pressure heat supply unit,the No.1 steam extraction and heat supply unit and the No.2 steam extraction and heat supply unit through the heat supply network first-station heat exchanger so as to supply heat.

The invention discloses an enzymatic fermented black tea beverage and a preparation method thereof. The enzymatic fermented black tea beverage comprises the following raw materials in percentage by weight: 1 to 30% of enzymatic fermented black tea juice, 1 to 10% of tea concentrated juice, 0.01 to 10% of a sweetener, 0.01 to 0.1% of a preservative, 0.05 to 0.1% of edible essence and the balance of water, and the sum of the raw materials is 100%. The enzymatic fermented black tea beverage prepared by the invention has rich nutriments and good taste, is nutritional and healthy, not only solves the problems of difficult control on the traditional fermented black tea production process and product standards and quality instability, but also greatly shortens the fermentation production cycle of fermented black tea and solves the problem of large energy consumption of the fermented black tea. The prepared fermented black tea beverage disclosed by the invention has the characteristics of clear and bright color, pure tea fragrance, mellow taste, moderate sweetness and mild sourness, and further has the healthcare functions of promoting appetite, invigorating the stomach, helping digestion, increasing appetite and the like, and the characteristics of enhancing the human immunity, regulating the body acid-base balance, improving chronic fatigue and enhancing physical constitution, thereby being superior to the traditional fermented black tea beverage.

The invention relates to the technical field of glass processing, and especially relates to an automobile glass heating method. The method is used for heating coated glass and non-coated glass alternatively loaded on a delivery roller, the coated glass and the non-coated glass are delivered on the delivery roller to a heating furnace, are heated to a preset temperature and are delivered out of the heating furnace, the heating furnace is divided by separator plates into a plurality of linearly arranged heating zones along the delivery direction of the delivery roller, the temperatures of the heating zones monotonously increase along the delivery direction of the delivery roller, and the convection heating air velocities of the heating zones are adjusted according to the automobile glass loaded in all the heating zones. The invention also provides an automobile glass heating device. The method and the device solve the temperature change problem in the furnace and the positioning problem of glass in order to make the glass uniformly and stably heated.

The invention relates to a far-end intelligent energy-saving control system and method for a central air-conditioner. A control interface output end of a terminal controller is in series connection to control fan power and an electromagnetic valve of cold / hot circulating water, and a central control computer sends signal to the terminal controller via a communication control module between layers. The terminal controller directly controls the fan power and the electromagnetic valve of cold / hot circulating water according to optimal control parameters sent by the central control computer. The system is mounted outside of the control system of the central air-conditioner, the terminal controller can be controlled to open and close the fan power and the electromagnetic valve of the cold / hot circulating water in an air outlet directly. In the system, modifying of the controller of a central air conditioning unit is avoided and the operation of the far-end fan power and the electromagnetic valve of the cold / hot circulating water directly is adjusted directly as the central air conditioning unit adjusts the operation of the unit according to the actual temperature or the flow of the return water automatically. The system is superimposed to the prior central air-conditioner other than changing the original set of the central air-conditioner.

The invention discloses a coal pyrolysis method and system. The method comprises the steps that 1, coal is pyrolyzed in a revolving bed pyrolysis reactor to obtain a gas-oil mixture and pyrolysis semicoke; 2, the gas-oil mixture is cooled to obtain tar and coal gas; 3, some pyrolysis semicoke and some coal gas are combusted with air to obtain heat supply smoke and ash; 4, the ash is returned to the step 1 to be mixed with coal to be supplied to the revolving bed pyrolysis reactor, and the heat supply smoke is returned to a radiation heating pipe of the revolving bed pyrolysis reactor in the step 1 to be used as a heat source, so that cooled smoke is obtained. By the adoption of the method, efficient pyrolysis of coal is achieved, the tar yield is high, meanwhile, the problem of the high energy consumption in the prior art can be solved, and therefore the disposal cost is effectively reduced.

The invention discloses a cation polyacrylamide solution which is prepared by the following steps: dissolving acrylamide, a cation monomer, a polyfunctional group monomer in a compound solvent; under the protection of nitrogen, stirring at the temperature of 30-70 DEG C to obtain a mixed solution; while stirring, dropwise adding an initiator into the mixed solution; reacting at constant temperature for 2-8 hours; and then, cooling while stirring, thereby obtaining the cation polyacrylamide solution. The cation polyacrylamide solution provided by the invention can be used as a surface sizing assistant for preparing a surface sizing agent together with AKD (Alkyl Ketene Dimer). The cation polyacrylamide solution can effectively improve the tensile index of corrugated paper, accelerates the curing of the AKD, shortens the forming time of paper, increases the utilization ratio of equipment, and solves the problem of high energy consumption caused by long curing time in the AKD modification process.

The invention relates to a semi-closed self-inert-type vibrating fluidized drying system, which comprises an inert gas generation device, a vibrating fluidized drying device, a tail gas dust removal purification device and a tail gas condensation purification device which are connected through pipes, wherein the gas outlet of the tail gas condensation purification device is communicated with the inert gas generation device through a pipe. The safety performance of the drying system provided by the invention is good and the problem of burning or explosion is avoided during drying. Besides, the drying system provided by the invention can solve the problems of high energy consumption, poor drying effect, poor dust removing effect and environmental pollution of the existing drying system.

The invention provides a refrigerant mixture, a mixed working medium and a compressor, and relates to the technical field of refrigeration, the refrigerant mixture is composed of propane and butane, the butane is isobutane, the propane accounts for 10 wt%-60 wt% of the mass of the composition, and the isobutane accounts for 40 wt%-90 wt% of the mass of the composition; or the butane is n-butane, the propane accounts for 10wt%-70wt% of the mass of the composition, and the n-butane accounts for 30wt%-90wt% of the mass of the composition. According to the refrigerant mixture disclosed by the invention, the refrigerant mixture has a relatively low global warming potential (GWP) value by exerting a synergistic effect among the refrigerants, and the problem that the GWP value of an existing R134a refrigerant is relatively high is solved.

The invention relates to the technical field of textile fabrics and discloses textile equipment performing two-sided drying based on reciprocating motion. The textile equipment comprises a framework body, wherein a drying device is arranged inside the framework body, a textile fabric carrying plate is arranged below the drying device, a pushing block is connected to a shaft rod, a rotating outer-ring gear is arranged at the outer side of the pushing block in a lap-joint mode, and a turnover gear is arranged on the rotating outer-ring gear in a meshed mode. According to the textile equipment performing two-sided drying based on reciprocating motion, in the using process, a transmission gear drives a chain belt to move, a sliding block is fixed to the chain belt and performs up-and-down motion in a sliding slot along with motion of the chain belt, meanwhile the sliding block drives the sliding slot and a reciprocating rod on the sliding block to do reciprocating rectilinear motion, the reciprocating rod drives the drying device connected thereto to do rectilinear reciprocating motion, therefore, the purpose of uniformly drying the surface of the textile fabric is achieved, and the problem that a traditional drying device is fixedly installed at one place and consequently cannot realize uniform drying on the textile fabric is avoided.

The invention discloses a rear energy storage type super-high speed plasticizing injection device, and belongs to the field of high molecular material machining equipment. The device mainly comprises a nozzle, a barrel, a screw, a heating ring, a charging bucket, an injection table, a charging bucket seat, a hydraulic motor, an injection oil cylinder and a spring adjusting device, wherein the nozzle, the barrel, the charging bucket seat, the hydraulic motor and the injection oil cylinder are connected in alignment with an axis in turn; the super-high speed plasticizing injection device is substantially the same as the plasticizing injection device of the normal injection molding machine; the injection oil cylinder consists of a cylinder barrel, an injection piston, an injection piston rod, a pressure sensor and a speed increasing spring; the speed increasing spring is positioned in an oil chamber of the injection oil cylinder and is close to the tail end; and one end of the speed increasing spring is fixed with the end face of the injection piston, and the end close to the tail end of the injection oil cylinder is a free end or is connected with the spring adjusting device. Energyis stored by the rear control spring energy storage device, and is released during injection to improve the screw injection speed, so that the technical requirement of super-high speed injection is met, and the defects of high cost, difficulty in maintenance, high energy consumption and the like of the conventional super-high speed injection molding machine are overcome well.

The invention provides an energy optimization moon-earth transfer orbit design method based on a moon high ladder. The method comprises the steps that 1, a moon-earth transfer scheme based on the moon high ladder is designed; 2, an energy analysis model of the transfer scheme is built; 3, an energy optimization model of the transfer scheme is built; 4, the transfer scheme is subjected to energy optimization. According to the energy optimization moon-earth transfer orbit design method, the novel moon-earth transfer scheme based on the moon high ladder is built, meanwhile, the energy optimization of a transfer orbit is achieved, the energy consumption in the moon-earth transfer process is lowered, and the problems of large energy consumption and high cost in the traditional transfer scheme are solved.

The invention discloses a production method of biodiesel using Aleurites moluccana fruits as raw materials. The method comprises the following steps: adding a diatomite adsorbent, and carrying out pretreatment for Aleurites moluccana fruit oil in order to obtain pure Aleurites moluccana fruit oil; adding the pure Aleurites moluccana fruit oil, methanol and the magnetic nano-catalyst according to a weight ratio 100:25-35:0.3-0.5 into a reaction vessel for carrying out an esterification reaction; and a biodiesel crude product is separated and purified in order to obtain the biodiesel. The magnetic nano-catalyst is introduced into the esterification reaction with high catalysis efficiency and substantial catalysis effects, so that reaction time is shortened, and yield of biodiesel is increased; on the other hand, the magnetic nano-catalyst can be conveniently and rapidly separated and recycled by means of an exterior magnetic field, and multitime cycle and utilization are carried out. The method also has the advantages of short reaction time, high yield, high product purity, etc.; the method has good social efficiency, ecological benefits, and economic benefits; large scale and industrial production are easy to realize.

The invention belongs to the technical field of hybrid power. The invention relates to a hybrid driving system and a vehicle. The hybrid driving comprises an engine, a first motor, a second motor, a first shaft, a first-gear driving gear, a first clutch, a second clutch, a second shaft, a second-gear driving gear, a third shaft, an outer gear ring driven gear, a first synchronizer, a first-gear driven gear, a main reduction driving gear, a second-gear driven gear, a main reduction driven gear and a single-row planetary gear mechanism. According to the hybrid driving system and the vehicle, themulti-stage speed ratio is adopted, and by controlling the engagement state of the two clutches and the synchronizer, the working modes including motor pure electric driving, engine and motor seriesrange extended driving, engine and motor parallel driving, engine direct driving and the like can be achieved. The engine can work in a section with high fuel economy, so that the fuel economy of thevehicle is improved.

The invention relates to a top ventilation structure of an energy saving building, which comprises a heat collecting device 100, a top cover structure 200 and a top connecting structure 300, wherein the heat collecting device 100 comprises a spotlight part 110, a light heat accumulation part 120 and a heat collecting device frame 130; the spotlight part 110 is fixedly arranged at the upper part of the heat collecting device frame 130; the light heat accumulation part 120 is fixedly arranged at the lower part of the heat collecting device frame 130; the top cover structure 200 comprises a top cover structure frame 210 and a plurality of top cover boards 220; the top cover boards 220 are fixedly arranged on the top cover structure frame 210; and a hollow passage is formed by the top cover structure frame 210 and the top cover boards 220. The top ventilation structure for energy saving buildings, provided by the invention, has the advantages that solar energy can be converted into heat energy; and air is enabled to have thermal motion through heating the air at the bottom of the building by utilizing the produced heat energy, thereby driving the air exchange of the indoor air and the outdoor air. The structure has the characteristics of environmental protection and low power consumption.

The invention provides an excavator control handle, a walking system and an excavator. The excavator control handle comprises a handle main body and an electric signal circuit, the handle main body isprovided with rolling knobs, and the rolling knobs are electrically connected with the electric signal circuit; the rolling knobs roll to different positions to connect different circuit parts in theelectric signal circuit so as to output different electric signals, a whole machine controller receives the electric signals output by the rolling knobs of a left handle and a right handle and controls opening of corresponding oil supply loops of hydraulic units and hydraulic oil flow, and walking control is achieved. According to the excavator control handle, the walking system and the excavator, electric control signals are adopted to replace a pilot valve, corresponding walking can be continuously controlled after one-time rolling knob rotation is conducted, no constant operation is needed, the operation comfort is improved, and meanwhile the problem that an excavator walking system in the prior art is large in energy consumption is solved.

The invention discloses a water tank target water temperature control method and an air source heat pump type water heater applying the method. The water tank target water temperature control method comprises the following steps that water demands and water temperatures at different times are set; the water tank target water temperature is worked out according to the volume of a water tank and thewater using time; and the section where the worked-out water tank target water temperature is located is judged, and the final water tank target water temperature is determined. According to the water tank target water temperature control method and the air source heat pump type water heater, fuzzy evaluation of the water supply temperature of the water tank is carried out according to the simulated water supply volume and the water temperature of user water, it can be guaranteed that the water supply temperature of the water tank is reduced as much as possible under the situation that the user water heat is enough, and the air source heat pump energy consumption is reduced.

The invention relates to a method used for producing 1, 4-cyclohexanedimethanol, and more specifically relates to a method used for producing 1, 4-cyclohexanedimethanol from a terephthalate dibasic ester. The method comprises following steps: 1, the terephthalate dibasic ester represented by formula I and hydrogen gas are subjected to hydrogenation reaction in the presence of a first catalyst to obtain 1, 4-cyclohexane diformic acid dibasic ester, wherein in formula I, R1 and R2 are different, and are independently selected from C4-C12 alkyl; 2, the 1, 4-cyclohexane diformic acid dibasic esterobtained in step 1 and hydrogen gas are subjected to hydrogenation reaction in the presence of a second catalyst to obtain a product flow containing 1, 4-cyclohexanedimethanol; and 3, the product flow containing 1, 4-cyclohexanedimethanol obtained in step 2 is subjected to separation to obtain 1, 4-cyclohexanedimethanol product. According to the method, reaction raw materials which are liquid atnormal temperature are adopted to solve a problem that solvent circulation energy consumption is large, full utilization of catalyst activity is realized, product separation technology is simple, andthe method is especially suitable for industrialized production.