2890results about How to "Reduce operating energy consumption" patented technology

The invention discloses an air conditioner for controlling the thermal comfort feeling of a human body and a control method. The method comprises the following steps of: acquiring relevant parameters of the comfort level of the human body; according to the relevant parameters of the comfort level of the human body and in accordance with a preset PMV (Predicted Mean Vote) formula, acquiring a corresponding computed result of the thermal comfort feeling of the human body; according to the computed result, acquiring an optimal control strategy; and according to the optimal control strategy, controlling a relevant operating mode of the air conditioner so as to realize comfort control for the air conditioner. The invention has the advantages that the need for thermal comfort of the human body is met, simultaneously different indoor environmental parameters are selected for combination according to the activity level and the wearing condition of a person, and the operating energy consumption of the air conditioner is least, so that the energy-saving effect of the air conditioner is improved; and the operating method is simple and is easy to control.

The invention provides a device and method based on BIM (Building Information Modeling) and operation and maintenance information interaction in intelligent building management. The device comprises asource data layer, a data storage layer, an external access layer, a platform application layer and a mobile and WeChat terminal, wherein the source data layer is used for extracting information, including the BIM, a GIS (Geographic Information System) model, an equipment standing book, equipment dynamic data and the like; the data storage layer is used for storing and matching models, information and data; the external access layer is used for extracting and accessing intelligent subsystem information; the platform application layer is used for BIM data interaction management and receiving and releasing an instruction; and the mobile and WeChat terminal is used for the mobile office of field management personnel. By use of the method, the "intensive construction, resource sharing and standard management" of the whole BIM operation and maintenance platform can be realized, on a premise of non-repetitive construction, the practical situation of a project is combined, big data, cloud computation, a BIM technology and an IOT (Internet Of Things) technology are used to comprehensively integrate each subsystem, data information and service resource on the basis of a uniform platform, and the operation and maintenance management level and the integrated service ability of a building are improved.

The invention discloses an autotrophic nitrogen removal method for biological phosphorus removal of urban sewage based on short-cut denitrification for providing nitrite. The method comprises the following steps: firstly feeding urban sewage into an anaerobic zone of a biological phosphorus removal nitrogen removal reactor, wherein short-cut denitrification is firstly carried out on denitrifying bacteria on a biological membrane so as to reduce nitrate nitrogen in return sludge to nitrite nitrogen, anaerobic ammonium oxidation bacteria on the biological membrane further convert nitrite nitrogen and nitrite nitrogen into nitrogen while anaerobic phosphorus release is carried out on phosphorus-accumulating bacteria in floc sludge; then feeding the sewage into the anaerobic zone again, wherein short-cut denitrification is carried out on the denitrifying bacteria on the biological membrane so as to reduce nitrate nitrogen in return sludge to nitrite nitrogen, and anaerobic ammonium oxidation bacteria on the biological membrane further convert nitrite nitrogen and nitrite nitrogen into nitrogen; then feeding the sewage into an aerobic zone and ammonia oxidizing bacteria and nitrite oxidizing bacteria in the floc sludge oxidize residual ammonia nitrogen in the sludge to nitrate nitrogen; and finally, implementing residual phosphorus removal and autotrophic nitrogen removal of urban sewage of a continuous flow, wherein the treatment energy consumption of an urban sewage plant is reduced.

The invention provides a deep neural network system based on a memristor, which comprises an input layer, an output layer and multiple hidden layers, wherein the input layer receives an external information input mode, the external information input mode is calculated and converted layer by layer, and an external output result is generated finally by the output layer. A synaptic weight of the deep neural network adopts the memristor for simulation, and the feature that resistance of the memristor changes along with applied electric signals is used to simulate a connection strength behavior of a connection synapse between neural networks. The invention further provides an information processing system for the deep neural network system based on the memristor.

The invention discloses a convolution neural network on-chip learning system based on non-volatile memory, comprising an input module, a convolution neural network module, an output module and a weight update module. The on-chip learning of the convolution neural network module utilizes the characteristic that the conductance of the memristor changes with the applied pulse to realize the synapticfunction, and the convolution kernel value or the synaptic weight value is stored in the memristor unit. The input module converts the input signal into the voltage signal required by the convolutional neural network module. The convolutional neural network module transforms the input voltage signal layer by layer and transmits the result to the output module to get the output of the network. Theweight updating module adjusts the conductance value of the memristor in the convolutional neural network module according to the result of the output module, and updates the convolution core value orsynaptic weight value of the network. The invention aims at realizing the on-chip learning of the convolution neural network, realizing the on-line processing of the data, and realizing the requirements of high speed, low power consumption and low hardware cost based on the high parallelism of the network.

The invention relates to a low-energy-loss six-foot robot which is suitable for long-time non-person working in mountain areas. The low-energy-loss six-foot robot comprises six legs and one body. Each leg is provided with three controllable single-freedom-degree joints relative to the body, the joints are driven in a rope-driving mode. The body comprises a driving wheel array, a driving wheel locking control mechanism array, one or more main driver modules, an annular track module, a function expanding platform and a supporting structure. The main driver modules drive the joints, the number of the main driver modules can be smaller than that of the joints, and accordingly one driver can control moving of a plurality of joints. Various slow step states are used in a sub-step moving mode. Compared with the prior art, the problem that the drivers doing negative work, so that energy loss is caused can be avoided, leg inertia is small, moving is slow, friction is low, when self weight is supported, the joints can be locked under control, supporting moment does not need to be provided, the low-energy-loss six-foot robot can be used in various existing six-foot robot slow step states, rugged terrain adaptability is kept, and meanwhile the problem of high energy loss of the six-foot robot is fundamentally solved.

The invention belongs to the technical field of sulfur recovery and particularly relates to a zero-emission sulfur recovery technology combined with low-temperature methanol washing acid gas treatment. In the zero-emission sulfur recovery technology, a low-temperature methanol washing acid gas treatment unit and a Claus sulfur recovery unit are set to a closed loop. The zero-emission sulfur recovery technology comprises the following steps: firstly, acid gas emitted from low-temperature methanol washing is subjected to sulfur production and recovery by the Claus sulfur recovery unit; sulfur production tail gas enters a low-temperature methanol washing unit after being subjected to hydrogenation reduction, cooling and compression; H2S in the tail gas is absorbed by low-temperature methanol and waste gas is exhausted from the top of a tower; methanol at the bottom of a hydrogen sulfide removal tower enters a methanol thermal regeneration tower; concentrated H2S acid gas is obtained at the top of the tower; and the concentrated H2S acid gas together with the H2S-containing acid gas produced in low-temperature methanol washing enters the Claus sulfur recovery unit for sulfur production. The zero-emission sulfur recovery technology is free of limitation by balance absorption of amine-method tail gas treatment, can obtain theoretic 100% sulfur recovery rate and has remarkable economical and environmental benefits; and the process is shortened greatly and the construction investment, operating cost and energy consumption are reduced by over 30%.

The invention belongs to the technical field of urban mass transit and particularly relates to an energy-saving method of train operation of the urban mass transit. The energy-saving method comprises the steps of 1, analyzing operation matching rules of adjacent trains and computing the size of utilized regeneration energy; 2, establishing an optimization model of the train operation by taking the utilized regeneration energy as the target; 3, solving the optimization model to obtain an energy-saving time table of the train operation of the urban mass transit. By means of the energy-saving method, energy consumption during train operation is reduced, and security of an overhead line system is improved. Furthermore, the energy-saving method has the advantages of (1) being high in operation speed and applicable to large-scale computer simulation by adopting an integer programming method; (2) considering comprehensive factors, being high in modeling accuracy and strong in applicability of the planned operation time table; (3) being capable of embedded into hardware of a train energy-saving driving auxiliary system in an online mode, easy to implement, low in cost and wide in application range.

The invention relates to a recycling treatment process for coal coking high-salinity wastewater. The process comprises the following steps: (1) fluorine removing; (2) silicon removing; (3) softening;(4) treatment with a multi-medium filter; (5) ultrafiltration; (6) resin softening; (7) FDG; (8) nanofiltration and salt separation; (9) reverse osmosis concentration; (10) advanced oxidation; (11) resin adsorption; and (12) evaporative crystallization. The process has the advantages that the process of pretreatment, nanofiltration salt separation, reverse osmosis concentration, advanced oxidationand evaporative crystallization is adopted, so that zero emission and quality-divided resource utilization of the coal coking high-salinity wastewater are realized.

The invention provides an air conditioner control method and system based on a PID algorithm. The air supply temperature, the air returning temperature and humidity of an air conditioner in a machine room are collected; according to the air supply temperature, the air returning temperature and the preset machine room temperature, the starting frequency and the starting time of a compressor in the air conditioner are controlled; the incremental PID algorithm is utilized, and according to the temperature difference value between the air supply temperature and the air returning temperature and the preset machine room temperature, the optimal output frequency of the compressor is calculated; meanwhile, according to the optimal output frequency of the compressor, the optimal rotating speed of a draught fan is adjusted; the compressor is controlled to carry out cold amount output at the optimal output frequency, and the draught fan is controlled to rotate at the adjusted rotating speed. According to the method and system, a frequency converter adjusts the rotating speed of the compressor, the air conditioner outputs the smaller cold amount, balance of the cold amount and the heat amount in the machine room is achieved, the starting and stopping frequency of the compressor is reduced, the running energy consumption of the compressor is reduced, and therefore the air conditioner runs in a more energy-saving manner.

The invention provides a solid heat storage device which is formed by combining at least one heat storage unit in series and / or parallel. The heat storage unit comprises a casing, a solid heat storage medium arranged in the casing and a heat insulation layer arranged outside the casing. The outer surface of the solid heat storage medium is a heat exchange interface. Heat insulation layers are regularly arranged in the heat storage unit, an inclined temperature layer is arranged in the axial direction, and a layering control system is arranged in the heat storage unit to ensure high grade storage and output of heat. The heat storage unit of an array can be vertically arranged and can also be horizontally arranged with a certain inclined angle. The solid heat storage medium utilizes solid sensible heat to store heat, and is safe in running, simple to process and low in cost. The surface of the solid heat storage medium has good heat exchange efficiency and good heat storage performance and can be widely applied to various heat storage applications, especially a solar photo-thermal utilization system.

The invention discloses a waste heat recovery device of an air compressor and a control method of the waste heat recovery device. The waste heat recovery device comprises heat exchanging modules and enhanced heat exchanging modules, wherein the heat exchanging modules are arranged in parallel at the two ends of an oil-channel electric valve; the reinforcing heat exchanging modules are arranged in parallel at the two ends of the air-channel electric valve; the heat exchanging modules and the reinforcing heat exchanging modules are utilized to recover and store the heat energy in circulating oil and the heat energy in compressed air lost and wasted when the air compressor operates; the heat energy of the compressed air can be recycled at highest efficiency under the premise that the operation of the air compressor is not impacted. According to the waste heat recovery device of the air compressor and the control method of the waste heat recovery device, the collected data are analyzed and operated so as to realized effective high intelligent control; not only is the efficiency of the operation of the air compressor improved, but also the energy input of the heat energy utilizing modules can be reduced, the energy consumption or fuels for heating are lowered, and energy comprehensive utilizing degree is improved. Therefore, the waste heat recovery device has the advantages that the energy-saving effect is good, the intelligent degree is high, and the stability is excellent.

The invention discloses a household air conditioner refrigerating system capable of separately controlling latent heat and sensible heat. The household air conditioner refrigerating system comprises a double-cylinder compressor, two liquid reservoirs, two evaporators, two electronic expansion valves, a condenser, an indoor fan and an outdoor fan, wherein the double-cylinder compressor is respectively provided with an air exhaust port and two air suction ports; two air suction ports of the double-cylinder compressor are respectively connected with the two liquid reservoirs; the air suction ends of the two liquid reservoirs are respectively connected with one ends of the two evaporators; the other ends of the two evaporators are respectively connected with one end of the condenser through the two electronic expansion valves; the other end of the condenser is connected with the air exhaust port of the double-cylinder compressor; the indoor fan is arranged at the side close to the two evaporators; the outdoor fan is arranged at the side of the condenser. According to the household air conditioner refrigerating system, the disadvantages of the traditional commercial temperature-humidity independent control air conditioning system are overcome; the household air conditioner refrigerating system is simple in equipment and achieves the purpose of dehumidification and temperature reduction without adding special dehumidifying equipment, the energy consumption for system operation is effectively reduced, and the indoor comfortableness and air quality are improved.

The invention provides a recovering system and a method of C2 in refinery dry gas by a compound adsorption method. The recovering system comprises a compressor, a pretreatment unit, a refinery dry gas cooling unit, a compound adsorption unit and a rectification unit. The adsorption unit comprises a gas-liquid separating tank, a C2 adsorption tower, and a methane desorption tower. The rectification unit comprises a C2 removing tower and an ethylene rectification tower. The refinery dry gas, after being compressed, pretreated and cooled, is subjected to gas-liquid separation to obtain a gas phase and a liquid phase. The gas phase is fed into the C2 adsorption tower and subjected to C2 adsorption by using a C4 mixture or a C5 mixture as an absorbent. The liquid phase is fed into the methane desorption tower, and subjected to methane desorption through stripping. The mixed adsorption oil at the bottom of the C2 adsorption tower and desorption gas at the top of the methane desorption tower are returned to the gas-liquid separation tank after being mixed and cold with the refinery dry gas. Tower bottom of the methane desorption tower is cooled and fed into the C2 removing tower and the ethane rectification tower to be rectified to obtain an ethylene product and an ethane product. The method provided by the invention adopts moderate operating conditions. The ethylene and the ethane both have the high recovering rate and the high purity.

The invention discloses a sewage treatment device which comprises a biological reaction pool and membrane separation equipment. The membrane separation equipment is arranged outside the biological reaction pool, the interior of which is provided with mixing equipment. The interior of the membrane separation equipment or the interior of the container that holds the membrane separation equipment isprovided with aeration equipment, and the membrane separation equipment or the container that holds the membrane separation equipment is communicated with the biological reaction pool through a pipeline. The interior of the membrane separation equipment is provided with the mixing equipment in the invention, and leads the concentrated solution which reflows through the membrane separation equipment or the container that holds the membrane separation equipment to be fully mixed with the mixing solution in the biological reaction pool, thereby avoiding the wasting phenomenon of energy consumption caused by high strength aeration in a membrane filter pool, which is common in existing negative pressure external membrane bioreactors; therefore, the gas-water ratio of the membrane bioreactor isgenerally reduced to 12:1 and even less than 10:1, which is basically close to other sewage biological treatment techniques of a traditional active sludge method, etc., thus leading the energy consumption in operation of a sewage treatment system to be maintained at a relatively low level.

The invention belongs to the technical field of water treatment, and particularly relates to a coking wastewater membrane concentration salt separation zero-emission treatment system and a coking wastewater membrane concentration salt separation zero-emission treatment method. The method comprises: coking wastewater pretreatment, wherein the coking wastewater pretreatment comprises full-automaticsand filtration, active carbon adsorption regeneration, ultra-filtration and softening; membrane salt separation and concentration treatment, wherein the membrane salt separation and concentration treatment comprises low-pressure nano-filtration, high-pressure nano-filtration, purification nano-filtration and reverse osmosis treatment; and concentration treatment, fluorine and silicon removal, electrodialysis concentration and evaporative crystallization, wherein an industrial-grade sodium chloride product with a purity of more than 92% is obtained, a sodium sulfate concentrated solution enters a freezing crystallization device to generate mirabilite, the mirabilite is heated and melted and then enters an evaporation crystallization, centrifugation and drying system, and an industrial-grade sodium sulfate product with a purity of more than 95% is obtained. According to the invention, with the system and the method, the zero discharge of coking wastewater is achieved, and the process technology is an innovative coking wastewater zero discharge process at home and abroad.

The invention discloses an urban-railway-system train intelligent control method based on driving experience and online study. The method obtains output of a controller through simulation of a driving strategy of an experienced driver, use of real-time data of train operation and reasoning and induction, and uses real-time information and speed-limit information of the trains to reasonably distribute the remaining time of train operation so that a time precision estimation value and a speed estimation value are obtained, and based on an MTDA algorithm of the real-time information, the method uses a train operation limit speed and current position, speed and time to deduct an expectation operation time and an expectation operation speed of train operation. Compared with a simulation result of automatic train operation (ATO) of a Yizhuang line of the Beijing city, the intelligent control method is capable of saving energy and improving on-time performance.

The invention belongs to the technical field of sulfur recovery, and particularly relates to a liquid-phase treatment process of tail gas from sulfur recovery. The liquid-phase treatment process comprises the following steps: recovering sulfur from acid gas through a Claus sulfur recovery device to generate sulfur production tail gas; introducing the sulfur production tail gas into a water film reactor, wherein all the sulfur dioxide and excessive hydrogen sulfide react to generate sulfur and H2S-containing tail gas; enabling the H2S-containing tail gas to be in direct contact with water to cool the H2S-containing tail gas, and discharging the condensed process waste water; oxidating the H2S-containing tail gas in an oxidation reactor to generate in-process gas; cooling the in-process gas through a sulfur cooler, and then further reacting in the water film reactor; and incinerating the waste gas, and then discharging. According to the process, the water film reactor is utilized to solve the problem on sulfur fog collection, and the water film reaction is used in the sulfur production tail gas treatment for the first time, thereby greatly improving the sulfur conversion rate, greatly shortening the process, and greatly reducing the construction investment, the operating cost and the energy consumption.

The invention belongs to the technical field of agricultural product processing, and particularly relates to a rotary disk type air jet impact drying machine. The rotary disk type air jet impact drying machine comprises an air flow circulation system, a rotary disk system, a weighing system and an automatic control system. In the drying process, hot air flow with certain pressure is jetted into a drying chamber (23) through an adjustable strip-shaped air flow jet (38), multiple layers of round material racks (6) evenly distributed in the drying chamber (23) in the axial direction of a rotary material shaft (8) carry a material disk (7) to rotate in the horizontal plane, the rotary disk system can conduct drying in a rotation speed changing and rotation mode changing mode and the weighing system can indicate the drying condition of materials. The rotary disk type air jet impact drying machine solves the problems that an existing air jet impact drying machine is limited in carrying capacity, hard to meet the drying requirements of batch agricultural materials and high in manufacturing cost, and air flow adjustment is inconvenient; meanwhile, the rotary disk type air jet impact drying machine can realize the batch-type drying process of drying-tempering-drying-tempering, improve the drying efficiency, and lower the running energy consumption of the rotary disk system, and is high in automation degree and good in material adaptability.

The invention relates to a container gantry crane lifting appliance path optimization control system based on a laser scanning positioning technology. The lifting appliance path optimization control system mainly comprises components such as a lifting appliance path control module, a laser scanning range finder, a video surveillance camera and a touch control type display screen, and can carry out positioning identification and path optimization on the contour of a storage yard and a lifting appliance (or a lifted container) according to a scheduling instruction of a wharf operating system and range finding information of a small vehicle-borne laser scanning range finder by using intelligent algorithms such as scanning positioning identification and path optimization control, so that the lifting appliance (or the lifted container) can be loaded and unloaded in place along an optimized path. The lifting appliance path optimization control system can significantly improve the operation efficiency, and reduce the operation energy consumption, container collision accidents and the labor intensity, thus further expanding the scheduling function of the wharf operating system, and being widely used for various tire type and rail type gantry cranes in container yards.

The invention relates to a loading and unloading system for a distribution center type automated container terminal. The loading and unloading system comprises a plurality of quay cranes, a nearshore multipath rectangular-ambulatory-plane automatic transportation system, an elevated container automatic loading and unloading system, a storage yard, a container evacuating port side multipath rectangular-ambulatory-plane automatic transportation system, a container evacuating port transportation system, an annular special container channel and a control system. Compared with the scheme of an existing automated container terminal, the loading and unloading system for the distribution center type automated container terminal is advantaged in that the loading and unloading system is creative and unique, and is high in production efficiency, safety, automation degree and stability, and is simple in structure, simple to control and complete in scheme.

The invention pertains to a field of the technique development of sewage treatment system. The invention is designed to solve the problem of instability and low standard-reaching rate of biological denitrification and phosphorus removal technic A2 / O. The problem is caused by the competition of carbon source. The invention is based on the theory of dephosphorization and denitrification by denitrification and reasonably takes the advantage of the idea that intake carbon sources can be used instead of additional carbon sources to improve denitrification rate. The invention is designed to update the technic A2 / O to the technic (A2 / O+A / O) of anaerobia-anoxia 1-aerobic 2-anoxia 2-aerobic 2, and the invention can also optimize the nutrient removal ability of the technic (A2 / O+A / O) by starting the switches of aeration and stirring and side-flow pump in anoxia 2 zone according to different quality and quantity of intake water. The invention can also fully exert the denitrification phosphorus removal performance and effectively use the intake carbon source within the technic (A2 / O+A / O), can effectively improve water quality, evidently reduces operation cost and reforms operation status. The invention is applicable to urban sewage treatment which demands on a nutritive matter emission standard.

The invention discloses a heat pump air-conditioning system which comprises a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, a throttling device, an outdoor environmental temperature sensor, an outdoor pipe temperature sensor and a controller, wherein the outdoor heat exchanger is provided with at least two flow channels which are independent from each other; and a switch valve which is used for cutting off the flow channel is arranged on each of the flow channels respectively. By adopting the mode that the outdoor heat exchanger is divided into a plurality of flow channels and the on-off of each flow channel is controlled, the defrosting and heating of the air-conditioning system are carried out at the same time, a room can be heated continuously during the defrosting process, thereby ensuring that continuous hot air is blown into the room while defrosting, the room is more uniform in temperature field and high in comfort, and moreover the consumption on operation of an air-conditioner is saved.

The invention provides a centralized flue variable air volume device and a variable air volume control method for high-rise residence kitchens. The system comprises a centralized flue penetrating floors of a high-rise residence, a plurality of kitchen exhaust branch pipes located in the floors of the high-rise residence correspondingly, communicating with the centralized flue and provided with range hoods, a roof draught fan communicating with the top end of the centralized flue, a plurality of signal collecting devices and a signal processing device. The signal collecting devices are arranged at the positions of the range hoods correspondingly so that after the states of the range hoods are recognized, position signals and start and stop signals of the range hoods can be collected and sent out. The signal processing device is connected with the signal collecting devices and the roof draught fan through a signal transmission channel so that after the position signals and the start and stop signals are received, statistics can be made on the positions and the number of the started range hoods, and a frequency conversion control instruction is sent to the roof draught fan. The centralized flue variable air volume device and the variable air volume control method solve the problem that in an existing centralized flue, the total exhaust volume design, calculation and running energy consumption is large and the problem about running optimization.

Disclosed are an air-cooled water chiller with a natural cooling function and a control method for the water chiller. The air-cooled water chiller with the natural cooling function comprises a compressor, a condenser, a throttler and an evaporator which are sequentially connected, a condensate fan is arranged on the condenser, the air-cooled water chiller further comprises a natural cooling coil, a three-way valve, an inlet chilled water temperature sensor, an outlet chilled water temperature sensor, an outdoor environment temperature sensor and a controller, the natural cooling coil is arranged on an air inlet side of the condenser, the three-way valve comprises a first joint, a second joint and a third joint and is serially connected onto a water inlet pipe of the evaporator through the first joint and the second joint, a water inlet pipe of the natural cooling coil is communicated with the water inlet pipe of the evaporator, and a water outlet pipe of the natural cooling coil is communicated with the third joint of the three-way valve. The air-cooled water chiller has the advantages of remarkable energy-saving effect, high running reliability, simple control method, compact structure, small occupied space and low production cost.

The invention relates to a process of preparing ethanol through distillation from fermentation liquor by using three- tower heat integrated device. The whole ethaol distillation system at least comprises crude distillation column, low- pressure azeotropic rectifying tower, high- pressure azeotropic rectifying tower and other corollary equipment. The heat integration in said three towers and the application of heat exchange, energy saving technology and steam injector greatly reduce operational energy consumption. The optimized heat exchange system combines the molecular screen and rectifying system organically, which improves the stability and flexibility for the whole rectifying system. The invention can reduce operational energy consumption by more than 30%, and the practicity and economical benefit are high.

The invention discloses an energy-saving control method and an energy-saving control system for constant-temperature constant-humidity air conditioning unit based on variable parameter adjustment, and relates to the field of air-conditioning energy-saving control. The energy-saving control method comprises the following steps: detecting temperature and humidity of outdoor fresh air, and calculating a fresh air enthalpy value ho according to the detected temperature value To and the detected humidity value Ho of the fresh air; detecting a return air temperature Tr and the humidity value Hr in a return air duct, calculating a return air enthalpy value hr; comparing the fresh air enthalpy value h0 with the return air enthalpy value hr in the return air duct, and adjusting an output signal according to a size for controlling the opening degree of a fresh air electric valve and a return air electric valve; a step of adjusting an variable air rate; a step of controlling and adjusting a variable air supply temperature; and a step of controlling a variable air supply dew point temperature. By virtue of variable parameter adjustment, the system is matched with load of the tail end better, so that the temperature deviation of an air-conditioning area is reduced, and operation energy consumption required by the system is greatly reduced; and when the indoor air quality is guaranteed, the system operation is more stable and efficient.

The present invention relates to a preparation method of ethylene using the dehydration of ethanol, which is to solve the problem in the prior technology that: the reaction temperature is higher; the hollow speed is lower and the energy consumption is higher. The present invention uses ethanol as the raw material and water as the thinner; under the condition that the reaction temperature is 200- 400 Celsius system, the reaction pressure calculated by a pressure meter is 0-2MPa and the reaction weight hollow speed is 0.1-10 hours, the raw material is contacted with ZSM molecule screen catalyzer to produce a ethylene flow; thereinto the molar ratio between water and ethanol is 0-10: 1. The technical scheme can solve the problem greatly, which can be used in the industrial production of ethylene.

The invention discloses an energy-saving air conditioner using outdoor cold source indirectly, which is suitable for occasions having great heating quantity and needing refrigeration in winter, such as communication machine rooms and computer rooms. The energy-saving air conditioner consists of indoor machine subassemblies, and an air-cooled condenser, a liquid reservoir, a fluorine pump and a capillary tube which are positioned outside the room, wherein the indoor machine subassemblies comprise a compressor, an evaporator and the like and are connected with an inlet of the air-cooled condenser through a connecting pipeline; the liquid reservoir is installed on a connecting pipeline between an outlet of the air-cooled condenser and the indoor machine; and the fluorine pump is connected with another branch at the outlet of the liquid reservoir, thus forming a separate refrigerating circulation system with the air-cooled condenser, the evaporator and the capillary tube. The air conditioner lowers the temperature by a refrigerating system in summer. When the outdoor temperature is lower than a certain pre-set temperature, the fluorine pump energy-saving system operates. A fluorine pump refrigerating circulation system is added, and outdoor cold source can be utilized at appropriate outdoor ambient temperature without opening the compressor, thus reducing the running energy consumption of the air conditioner, shortening the working time of the compressor and prolonging the service life of the compressor.

The invention discloses an integrative rotatable type adsorber. The adsorber comprises a circular inner cylinder and a circular outer cylinder which have the same mandrel, wherein the middle of the inner cylinder is provided with a baffle plate. The structure of the integrative rotatable type adsorber is equivalent to that of a double-tank adsorber; the center of a top cover (29) of the inner cylinder is provided with a rotating shaft (32), and the rotating shaft (32) is connected with driving equipment by an outlet (3) of the rotating shaft on a top cover (7) of the outer cylinder; the inner side of a bottom cover (25) of the outer cylinder is provided with an annular roller groove (21) which has the same mandrel with the outer cylinder, and an outer layer of the bottom cover of the inner cylinder is provided with a roller (20) matched with the roller groove (21); and a cylinder body (9) of the outer cylinder is provided with a magnetron (27). The adsorption and the recovery of oil gas are realized by the rotatable type adsorber through utilizing the processes of microwave heating and low-vacuum integrated desorption. According to the adsorber, the integration of adsorption and desorption is realized, the structure is simple, and the miniaturization of equipment is realized.