161results about How to "Realize the effect of energy saving and emission reduction" patented technology

The present invention discloses a soot cleaning descaling robot for a heat medium heater which comprises a robot body, a drive chain wheel and a driven chain wheel which are arranged at both sides of the robot body, a track supported by the drive chain wheel and the driven chain wheel, a motor for driving the robot to go forward or back off, a soot cleaning descaling brush arranged at one side of the robot body and a soot cleaning speed reducing motor for driving the soot cleaning descaling brush to rotate. The robot also comprises a travel switch arranged in the front of one side of the robot body, a running deviation prevention mechanism arranged at the bottom of the robot body, and wheeled pressure bars which are used for preventing overturning and are respectively formed by projecting at both forward and backward ends of the robot body. The track is an adsorption type track, the shape of the outside surface of the track is corresponding with the shape of the outside surface of the heat medium heater tube, and a magnetic sucking disc is arranged at the bottom of the robot. The robot of the present invention can replace soot cleaning and descaling in the heat medium heater by manpower, avoid body damage to the soot cleaning work labor, reduce environmental pollution and improve the efficiency of soot cleaning.

A heat-dissipating system of an equipment cabinet comprises a hot airflow collection cavity, wherein a first side face of the hot airflow collection cavity serves as an equipment cabinet back plate, a plurality of ventilation holes are formed in the first side face, a controller and a first temperature sensor connected with the controller are arranged on the first side face, at least one fan set connected with the controller is arranged inside the hot airflow collection cavity, a second temperature sensor connected with the controller is arranged at the position of an airflow inlet of the equipment cabinet, a hot airflow discharge port is formed in the hot airflow collection cavity and is used for being connected with an airflow return inlet of an airflow conditioner in a machine room through an airflow return guide pipe, the controller is used for outputting a control signal to control fans of the fan set to accelerate when the temperature difference of the temperature of discharged airflow of the equipment cabinet and the temperature of inlet airflow of the equipment cabinet is smaller than a set value, or the controller is used for outputting the control signal to control fans of the fan set to slow down when the temperature difference is larger than or equal to the set value, and the hot airflow discharged from the fans of the fan set is output from the hot airflow discharge port. By means of the heat-dissipating method, the equipment cabinet can be effectively cooled, cold airflow and hot airflow are effectively isolated, and refrigerating efficiency is improved.

The invention relates to the technical field of optimizing a furnace temperature set value of a walking beam type heating furnace in the combustion process, in particular to a system for optimizing the optimal furnace temperature set value based on data mining. The system comprises a data processing module and a data mining analysis module. A data processing process mainly comprises the following steps: acquiring the real-time data, and acquiring the temperature, flow and related production data of each furnace section in the heating furnace; combining the acquired production data and steel billet rolling data into a data mining analysis sample object, and storing a mining result in a background database according to a certain rule model, thereby forming a rule knowledge base; and finally acquiring the optimal furnace temperature set values of different steel billets in each section of the heating furnace from the knowledge base. The system provided by the invention can be used for optimizing and setting an optimal furnace temperature set value curve of the walking beam type heating furnace. For various steel billets, the optimal control guidance can be supplied to the control system, thereby improving the combustion process of the steel billets in the heating furnace, increasing the heating quality and lowering the energy consumption of the heating furnace.

The invention discloses a diazotization continuous tubular reactor which comprises liquid storage tanks, a tubular reactor, a diazotization salt separation storage tank and a circular cooling system, wherein all liquid storage tanks are connected with the tubular reactor through a mixer which can be used for sufficiently mixing all reaction materials and feeding the mixture into the tubular reactor; a flow controller is arranged between each liquid storage tank and the mixer; the mixer and the tubular reactor are in sealed connection; the circular cooling system comprises a quencher, a mediumstorage tank, a quencher nozzle and a recycling mechanism, wherein the quencher is used for connecting the outlet of the tubular reactor with the liquid inlet tube of the diazotization salt separation storage tank; the medium storage tank is used for storing a cooling medium; the quencher nozzle is used for quickly spraying the cooling medium into the quencher; the recycling mechanism is connected with the diazotization salt separation storage tank and used for recycling the cooling medium and cooling the recycled cooling medium; the recycling mechanism and the medium storage tank are connected; the cooling medium is low-temperature high-pressure CO2; and the top of the diazotization salt separation storage tank is provided with an exhaust port. The diazotization continuous tubular reactor disclosed by the invention has the advantages of high reaction yield, low energy consumption and strong generality.

The invention relates to the technical field of adhesives, solves the problem of using low solid content solvent-based composite adhesive in traditional reflective cloth, provides a preparation methodof a high solid content low viscosity acrylic resin adhesive and its application on a reflective cloth. The preparation method comprises the following steps: adding acrylate soft monomer, hard monomer, functional monomer, part by weight of organic solvent and part by weight of initiator into the bottom of a reaction kettle, heating to 78-85 DEG C, reacting for 1-2 hours, making the remaining initiator into initiator solution by using the part of the remaining organic solvent, and continuously dropping into the reaction kettle for a dropping time of 3-5 hours, controlling the temperature to 76-83 DEG C, keeping the temperature for 2-3 hours, adding the remaining organic solvent into the reaction system, adding the modified acrylate oligomer, and cooling to 50-60 DEG C and obtaining the acrylate adhesive with high solid content and low viscosity and the solid content of the obtained adhesive can reach more than 50%, and the adhesive has low viscosity characteristics at the same time.

The invention provides a device and method for reducing generating and discharging of sintered dioxin. The device comprises a sintering machine, sintering machine air bellows and a sintering machine large flue. The sintering machine large flue is divided into a discharging flue body and a circulating flue body which are mutually independent. The discharging flue body is communicated with a sintering machine front section air bellow, and the circulating flue is communicated with a sintering machine rear section air bellow. An outlet of the discharging flue is communicated with a discharging pipeline, the front section of the sintering machine is provided with a sealing cover, the circulating flue is connected with an inlet of a circulating fan through a waste gas circulating pipeline, and an outlet of the circulating fan is communicated with the sealing cover through a gas conveying pipeline. An annular cold air circulating pipeline in parallel connection with the waste gas circulating pipeline is communicated with the inlet of the circulating fan, and an inlet of the annular cold air circulating pipeline is communicated with an annular cold air cover of an annular cooler. According to the device and method for reducing generating and discharging of the sintered dioxin, most of the sintered dioxin in sintering waste gas is introduced into a sintering material layer and decomposed in a sintering combustion zone, and therefore generating amount and discharging amount of the sintered dioxin in the whole sintering process are reduced.

The invention discloses a casting resin sand regeneration production line. The production line comprises a vibration shakeout machine. A material outlet is arranged under the vibration shakeout machine. A vibration conveyor is arranged in the material outlet. The vibration conveyor delivers the materials to a bucket elevator (A). The bucket elevator (A) transports the materials to a sand bin (A). The sand bin (A) delivers the materials into a grinding machine to grind the materials. Then the materials are transported to a sand bin (B) through a bucket elevator (B). The materials in the sand bin (B) are delivered to a boiling cooling bed so as to cool the materials. After cooling, the materials are delivered to a sand bin (C) through a bucket elevator (C). The materials in the sand bin (C) are transported to a sand bin (D) by a force regenerator. The material outlet of the sand bin (D) is provided with a sand temperature regulator. After the temperature is adjusted by the sand temperature regulator, and the materials are delivered to a sand bin (E) through a bucket elevator (D) and then transported to a sand mixing machine by a pressure feeding system so as to reclaim the materials. The provided casting resin sand regeneration production line can improve the recovery rate of resin sand, moreover, the recovering effect is good, the cost is low, and no pollution is generated.

The invention discloses a rotary type magnetic refrigerator-based upright air-cooled multiple-temperature zone refrigerator and a control method thereof. The multiple-temperature zone refrigerator comprises a cold storage chamber and a freezing chamber; a thermometer bulb is built in each of the cold storage chamber and the freezing chamber; when the multiple-temperature zone refrigerator works ina normal refrigeration mode, a rotary type magnetic refrigerator located in an engine room is capable of supplying cold energy for the cold storage chamber and the freezing chamber alternately through heat-exchange fluid and three-way valves; meanwhile, heat is emitted to the environment through a high-temperature heat exchanger; and a motor rotation speed controller and a drive pump rotation speed controller are dynamically adjusted by a controller through a difference value of room temperature and set temperature input by a user to realize automatic efficient temperature control. When the user selects a fast cooling mode, motor rotation speed is set to be maximum rotation speed so as to guarantee that the cold storage chamber and the freezing chamber reach the respective set temperatureas soon as possible; and when the air-cooled refrigerator frosts during operation to worsen refrigeration performance, the controller can automatically judge the condition to enter a defrosting mode;cold storage chamber is defrosted in manner of return air defrosting; and the freezing chamber is defrosted in manner of reverse circulation.

The invention provides a production process for manufacturing wheels through martensitic steel, and relates to the technical field of production of steel spoke plate type truck wheels. According to the production process, boron-containing materials are applied to multi-step workpiece products of wheel spokes and rims of the wheels; the material structure is converted by heating and cooling; and finally a martensite structure is formed. The tensile strength of the wheels can be improved from 600 MPa of common products to 1000 MPa or above, and the safety performance of the products can be improved completely; and in the wheel products with the same strength, the thickness can be reduced by about 50%, raw materials are saved, energy consumption in use of the wheels is reduced, and the effects of energy saving and emission reduction are achieved.

The invention relates to an intelligent toilet and bathroom water saving apparatus and a water saving method thereof. The water saving apparatus comprises, a water saving floor drain, a self priming type pump and a water storage tank which are sequentially connected through a pipeline, and also comprises an automatic control system. The water saving floor drain with substantial water collecting ability and the high water storage tank provided with the water pump are appropriately laid to realize efficient collection of shower water and water saving of automatic flushing closestools. The water saving apparatus has the characteristics of high automation degree, accurate control, simple structure, use convenience, safety, reliability, low cost, and effective saving of water resources.

The invention discloses an industrial energy conservation and emission reduction type smoke dust purifier. The smoke dust purifier comprises a smoke dust purifier shell, wherein a microcomputer controller is mounted on one side of the smoke dust purifier shell, the smoke dust purifier shell is connected with a universal air-suction arm through a fixed flange, a flame arrestor is mounted in the universal air-suction arm, a settling chamber is mounted in the smoke dust purifier shell, a first-stage filter element and a second-stage filter element are mounted in the settling chamber, the first-stage filter element is located above the second-stage filter element, an electromagnetic valve is mounted at the bottom of the settling chamber, a dust collection bin is arranged below the electromagnetic valve, the settling chamber is connected with a clean chamber through an air transmission pipeline, and an activated carbon filter is mounted in the clean chamber. By mounting the activated carbon filter in the clean chamber, clean air is further adsorbed and purified by virtue of the activated carbon filter and reaches the emission standard, so that the environmental pollution caused by emitted gas is avoided.

The invention provides a high temperature heat pump circulation system by adopting natural working medium water and a working method of the high temperature heat pump circulation system. The high temperature heat pump circulation system comprises a water working medium heat pump circulation system, a water vapor compressor water replenishment system, a waste heat source water supplying system anda high temperature water outlet system. The water working medium heat pump circulation system and the water vapor compressor water replenishment system are connected through a water circulation pipe and a water vapor compressor. The waste heat source water supplying system and the water working medium heat pump circulation system are connected through an evaporator. The high temperature water outlet system and the water working medium heat pump circulation system are connected through a condenser. According to the high temperature heat pump circulation system, the natural working medium waterserves as a circulation working medium of the system, waste heat in waste heat sources is effectively recycled, high temperature outlet water is provided for being used by a user, and the temperatureof the outlet water can reach 120 DEG C or above; and meanwhile, the natural working medium water serves as the circulation working medium of the system, damage of chlorofluorocarbon artificial synthetic working mediums to the environment is avoided, the environment is effectively protected, and the effects of energy saving, emission reduction and environmental protection are achieved.

The invention provides an intelligent sentry box and a method for regulating the duty environment state by using the intelligent sentry box. The intelligent sentry box comprises a sentry platform (2) and a ceiling (4) arranged above the sentry platform (2), wherein an air guide device (41) which is provided with a first air outlet opening (17) and is used for guiding temperature regulating air flow to flow to people standing on the sentry platform (2) from the first air outlet opening (17) is arranged on the bottom surface of the ceiling (4). The intelligent sentry box also comprises an air conditioner, an air filter (20) and a negative ion generator (21), wherein the air conditioner is used for generating the temperature regulating air flow; the air filter (20) is used for purifying the temperature regulating air flow; and the negative ion generator (21) is used for generating negative oxygen ions in the temperature regulating air flow. The intelligent sentry box can provide good work environment for sentry personnel of military, police and civil sentry boxes, and the practicability is high.

The invention provides an energy saving method for Ethernet equipment and the Ethernet equipment. The energy saving method comprises that: if the operating mode of the Ethernet equipment is judged to be switched from a non-energy saving mode to an energy saving mode, analyzing the states of links of all ports at a current moment; and closing an interface channel of an in-board link corresponding to the port of which the link is in an ineffective state, or resetting an in-board network chip with the ports of which the links are all in the ineffective state. By the energy saving method and the Ethernet equipment, the online disabling of idle ports and related chips of the Ethernet equipment is realized by controlling the operating mode of the Ethernet equipment so as to reduce the power consumption of the idle chips and interfaces and effectively reduce the whole power consumption of the equipment.

The invention discloses a preparation method of a solid waste regenerated foamed ceramic material for a heat preservation and insulation wall. According to the preparation method, screening, refining, foaming and curing are performed on solid wastes such as industrial tailings and construction wastes to form fireproof foamed ceramic for heat preservation and insulation of a building wall. The method specifically comprises the following steps of: enabling the performance of the solid wastes to meet the requirements of a foamed ceramic raw material on fineness and purity through processes such as carbon removal and ball milling; mixing the solid wastes with a foaming agent and a curing agent, preparing the foamed ceramic through technological processes such as foaming, curing and hydration; and finally cutting and grading the foamed ceramic material with a low heat conductivity coefficient so as to apply the material to the thermal insulation wall. With the material adopted, not only can the problem of environmental pollution caused by solid wastes be solved, but also heat energy consumption of buildings can be reduced, and a good strategy is provided for turning waste into wealth.

The invention aims to provide a coal mine ventilation air methane oxidation system characterized by stable operation, short system startup time and high heat recovery efficiency. Through matching combination of a gas distribution device, a device body, a reversing device, an actuating device and a measuring and control device, especially the reversing device composed of two three-way valves, the ventilation air methane loss in the pipeline is effectively reduced. The whole system operation, which includes switching of the reversing device, flow measurement and adjustment, pressure and temperature measurement, methane concentration monitoring and feedback, is all carried out under monitoring of the monitoring device. The monitoring and measurement data can be acquired in real time, and a ventilation air methane oxidation operation adjustment scheme can be worked out timely, thus realizing the effects of energy saving and emission reduction. The coal mine ventilation air methane oxidation system provided by the invention has the advantages of stable operation, short system startup time, and high heat recovery efficiency.

The invention discloses a sintering segregation distribution controlling method for stabilizing material layer thickness. In the method, a material layer thickness feed-forward cascade intelligent control system with a two-layer hierarchical structure is provided for stabilizing the material layer thickness, wherein a feed-forward compensation decoupling control algorithm is adopted in the upper layer structure to decouple the material layer thickness, the rotation speed of a round roller feeder and the opening of a discharging gate and eliminate the coupling relation of the material layer thickness, the rotation speed of the round roller feeder and the opening of the discharging gate; in the lower layer structure, a discharging gate opening controller and a round roller rotation speed controller are arranged aiming at the two operation parameters, namely the decoupled rotation speed of the round roller feeder and the decoupled opening of the discharging gate, so that stabilization control over the material layer thickness is realized; and in order to eliminate deviation between an actual value and a set value of the material layer thickness, a thickness difference controller is arranged to correct the material layer thickness feed-forward cascade intelligent control system. By the control technique, the stable and smooth sintering of a thick material layer can be effectively guaranteed, the sintering energy consumption is reduced, and the quality and the yield of sintered ore are improved.

The invention relates to the field of recovery and reuse of tail gas of a continuous distillation blowing pot in a pulping industry and discloses a method for recovery and reuse of tail gas of a pulping continuous distillation blowing pot. The method comprises preheating pulp in an obliquely spiral dehydrator, a preheating spiral conveyer, a digestion liquor barrel and a spiral conveyer in a bleaching vacuum pulp washer through tail vapor of a blowing pot so that the temperature of bagasse is increased. The method fully utilizes tail vapor of the blowing pot, reduces energy consumption and a production cost and protects the environment.

The invention provides a dual-mode intelligent air conditioner control system, comprising a plurality of air conditioners and / or air conditioner units; a plurality of controllers, an intelligent router and a control platform, wherein the controllers are connected with the air conditioners or air conditioner units in one-to-one correspondence and used for controlling the air conditioners or air conditioner units and acquiring operating state data and environmental data of the air conditioners or air conditioner units; the intelligent router is connected with the controller and used for transmitting the operating state data and the environmental data; the control platform is connected with the intelligent router and used for analyzing the operating state data and the environmental data and sending out control signals; and power line or wireless communication is adopted between the controllers and the intelligent router and between the intelligent router and the control platform. According to the dual-mode intelligent air conditioner control system, data are transmitted in multiple communication modes, and the controllers are controlled in multiple modes of infrared control, relay control and the like, so that an air conditioner system is controlled on the whole and then the effects of energy conservation and emission reduction are achieved.

The invention discloses a library based on a self-power-generation technology. After being processed, circulating air in the library is compressed through a compression device, passes through a jetting device, is mixed with compressed fresh air which is processed in the same way in an injection or injected mode, and is sprayed into a turbine power generation device to generate power for self-power-generation and air conditioning. The generated power is stored together with external energy and is supplied to electric equipment of the library independently or in a mixed mode for use. The neededair humidification amount is provided through injected air. The needed fresh air amount is provided through fresh air. By the adoption of the scheme, the processed fresh air and the circulating air are injected or injected and mixed according to needs and then are used for self-power-generation and air conditioning, and the purpose of reducing dependence on external energy is achieved on the basisof meeting the requirements of the library for temperature, humidity and cleanliness. Compared with a central air conditioning system of an existing library, the structure is simple, and more energyis saved.

The invention discloses a switch power supply device compatible with various power supply modes for a base station, relates to power supply technologies of communication base stations, and aims to provide the switch power supply device compatible with various power supply modes of new energy, power frequency alternating current, high frequency alternating current and the like for the base station. According to the technical key points of the switch power supply device, the switch power supply device comprises a power frequency / high frequency switching device, a switch power supply monitoring unit, an alternating-current power distribution unit, a rectifying module, a direct-current distribution power supply, a storage battery and a high-frequency power generator, wherein the power frequency / high frequency switching device is provided with a power frequency alternating current input end, a high frequency alternating current input end and an alternating current output end; the high frequency alternating current input end is connected with the alternating current output end of the high-frequency power generator; the power frequency alternating current input end is connected to a commercial power supply; the power frequency / high frequency switching device, the alternating-current power distribution unit and the rectifying module are connected with a direct-current power distribution unit in sequence; the direct-current power distribution unit is connected with the storage battery, base station electric equipment and the like respectively.

The invention discloses a diazotization continuous tubular reactor which comprises liquid storage tanks, a tubular reactor, a diazotization salt separation storage tank and a circular cooling system, wherein all liquid storage tanks are connected with the tubular reactor through a mixer which can be used for sufficiently mixing all reaction materials and feeding the mixture into the tubular reactor; a flow controller is arranged between each liquid storage tank and the mixer; the mixer and the tubular reactor are in sealed connection; the circular cooling system comprises a quencher, a mediumstorage tank, a quencher nozzle and a recycling mechanism, wherein the quencher is used for connecting the outlet of the tubular reactor with the liquid inlet tube of the diazotization salt separation storage tank; the medium storage tank is used for storing a cooling medium; the quencher nozzle is used for quickly spraying the cooling medium into the quencher; the recycling mechanism is connected with the diazotization salt separation storage tank and used for recycling the cooling medium and cooling the recycled cooling medium; the recycling mechanism and the medium storage tank are connected; the cooling medium is low-temperature high-pressure CO2; and the top of the diazotization salt separation storage tank is provided with an exhaust port. The diazotization continuous tubular reactor disclosed by the invention has the advantages of high reaction yield, low energy consumption and strong generality.

The invention discloses a secondary water supply device, and belongs to the technical field of water supply devices. The secondary water supply device comprises a water storage type pressure stabilizing tank, wherein a backflow main pipe is clamped and connected onto the side end surface of the water storage type pressure stabilizing tank; and a pair of anode water wheels and cathode water wheels is arranged inside the backflow main pipe. Through the conversion and utilization of wind energy and municipal water supply pipe network water power, the comprehensive purification of drinking water can be favorably realized; the long-time and uninterrupted drinking water circulation purification effect can also be achieved; through micro electrolysis sterilization, the microbe propagation process is blocked; through the circulation reciprocating action of a descaling brush on the cathode water wheels, the contact area of the cathode water wheels and the drinking water is effectively ensured; the micro electrolysis sterilization and mite removal effect of the drinking water is improved; the multi-stage automatic pressurization effect of the drinking water can also be realized by using an anode shaft, a cathode shaft, a movable vortex disc and a static vortex disc; and the occurrence of problems of insufficient water pressure and the like during the subsequent solid-liquid separation of the drinking water can be avoided.

The invention provides an energy conservation control method and system in vehicle slope rushing travel and belongs to the technical field of vehicle energy conservation. The method includes the stepsthat geographic information related to slope rushing travel is acquired; a slope rushing operation physical model is established; based on the current working state of a vehicle engine, the geographic information and vehicle parameters, the slope bottom working state and the slope top working state of the engine are calculated, and the slope rushing situation type to which a vehicle belongs is confirmed; based on the slope rushing operation physical model, the slope bottom vehicle speed allowing the vehicle to travel to the slope top from the slope bottom without downshifting is calculated; adriver is reminded of the slope bottom vehicle speed obtained through calculation in a voice mode; and based on a received slope bottom vehicle speed reminder, the driver adjusts the speed used whenthe vehicle reaches the slope bottom to the slope bottom vehicle speed. In addition, the invention provides the energy conservation control system in vehicle slope rushing travel. By the adoption of the technical scheme, on the premise that it is guaranteed that the vehicle smoothly climbs a slope, fuel consumption is reduced, and the effects of energy conservation and emission reduction are achieved.

The invention provides a converter steelmaking gravity dry method dedusting and afterheat recycling device, comprising a converter which is connected with a gravity deduster through a flue, wherein, the gravity deduster is connected with a ripple compensator through the flue, the ripple compensator is connected with a dedusting boiler through the flue, the dedusting boiler is connected with a thermotube exchanger through the flue, the thermotube exchanger is connected with a woven bag deduster through the flue, the woven bag deduster is connected with a flue gas spraying device through the flue, the flue gas spraying device is connected with an induced draft fan through the flue, the periphery of one section of the flue between the converter and the gravity deduster is provided with a vaporizing cooling device, the upper end of the vaporizing cooling device is provided with a vaporizing steam pipeline, the upper end of the dedusting boiler is provided with a boiler steam pipeline, the upper ends of the vaporizing steam pipeline and the boiler steam pipeline are communicated with a main steam pipeline, the periphery of the gravity deduster is provided with a vaporizing spraying device. The converter steelmaking gravity dry method dedusting and afterheat recycling device can recycle the powder particle high-heat flue gas generated by the converter after the treatments of decreasing the temperature and dedusting by a series of devices and realize the good performance of energy conservation and emission reduction.

The invention relates to a comprehensive heat source system applied to the fields of ships and ocean engineering. The comprehensive heat source system comprises a high-temperature subsystem and a low-temperature subsystem. The high-temperature subsystem comprises a plurality of exhaust gas boilers connected in parallel, an oil burning boiler, a plurality of high-temperature heat utilizing devices connected in parallel and a high-low-temperature heat exchanger. High temperature media circulate under power of high-temperature circulating pumps and supply heat to the high-temperature heat utilizing devices and the high-low-temperature heat exchanger. The high temperature media are steam or hot oil. The low-temperature subsystem comprises a plurality of fresh water heat exchangers and a plurality of low-temperature heat utilizing devices connected in parallel, wherein the fresh water heat exchangers are connected in parallel and connected with the high-temperature fresh water outlet ends of diesel engines respectively. The low-temperature heat utilizing devices connected in parallel are connected with the high-low-temperature heat exchanger in series. Low temperature media circulate under power of low-temperature circulating pumps, heat is further absorbed through the high-low-temperature heat exchanger after heat is absorbed through the fresh water heat exchangers, and finally heat is supplied to the low-temperature heat utilizing devices. The low temperature media are water.

The invention relates to the technical field of air conditioning and provides a compressor pump body, a compressor and a multi-split air conditioner system. The compressor pump body comprises a crankshaft and three or more air cylinders, wherein the air cylinders are sequentially arranged on the crankshaft; each of the air cylinders forms an independent refrigerant compression passageway; each aircylinder of the pump body is provided with independent air suction and exhausting control and can provide one refrigerating cycle to solve the problem that the refrigerant is not uniformly distributed. Each air cylinder works independently, and when one indoor unit does not work, the air cylinder is controlled to idle so as to reduce the energy consumption and realize the effects of energy conservation and emission reduction.

The invention provides a cerium-based rare-earth catalytic combustion improver. A preparation method of the cerium-based rare-earth catalytic combustion improver comprises the following steps of: forming a carrier by C16H35O4P and / or phosphorous or kerosene; dissolving rear-earth oxide in an H2SO4 or HCI solution to obtain rare-earth feed liquid; mixing the carrier and the feed liquid to obtain a load organic phase; and mixing the load organic phase and cerium-based rare-earth oxide to obtain the cerium-based rare-earth catalytic combustion improver. The invention also discloses the preparation method of the cerium-based rare-earth catalytic combustion improver. The cerium-based rare-earth catalytic combustion improver provided by the invention is low in cost and simple in preparation and operation processes, and the adjustable range of component parameters is wide. After the cerium-based rare-earth catalytic combustion improver is added, the heat value of fuel oil is increased by 10-15%, the content of CO, CH and NOx in discharged exhaust gas is reduced by 50-60%, an energy saving and emission reduction effect can be realized very well, and simultaneously carbon deposits can be effectively cleared away. The cerium-based rare-earth catalytic combustion improver is wide in the application range, has no side effects on equipment and is simple and convenient to add and operate.