365results about How to "Reduce cooling energy consumption" patented technology

The invention specifically relates to a multifunctional green environment-friendly waterborne energy-saving building coating and a preparation method thereof, belonging to the technical field of energy-saving building coatings. The multifunctional high-efficiency energy-saving building coating comprises, by weight, 25 to 50% of a high polymer emulsion, 5 to 30% of a light-reflection filling material, 1 to 5% of aerogel powder, 5 to 10% of a heat-insulation filling material, 5 to 15% of a common filling material, 1 to 2% of a surface modifier, 1 to 5% of a dispersing agent, 0.1 to 4% of a film-forming aid, 0.1 to 2% of a thickening agent, 0 to 1% of an antifoaming agent, 0.01 to 0.5% of a pH regulating agent, 0.1 to 2% of a wetting agent and 0.5 to 2% of an antifreezing agent, with the balance being deionized water. The coating provided by the invention has heat-insulation and cooling effect in summer and heat preservation effect in winter, is applicable to energy-saving reconstruction of buildings in tropical zones and subtropical zones, and has the characteristics of safety, no toxicity, environment friendliness and no pollution; moreover, the coating has good weatherability, contamination resistance, flexibility and scrubbing resistance.

Provided are system of value resource in acidic corrosion waste fluid and a recycling method. The recycling method of the invention includes the following steps that adding oxidation agent and concentrated sulfuric acid into the corrosion waste fluid, pre-heating and heating the corrosion waste fluid, evaporating out water vapor and hydrogen chloride under negative pressure and recycling hydrochloric acid, the residue separates hydric sulphate from blue copperas crystal via centrifugal filtration and recycle hydric sulphate, washing blue copperas crystal by blue copperas crystal solution and absolute ethyl alcohol and recycling blue copperas. The recycling system comprises an oxidation ditch, a dosage bunker, a pre-heater, a heat booster, an evaporation tank, a filter, a cooler, a spraying and absorbing device and the like. The recycling method of the invention increases the recovery rate of metal copper and hydrogen chloride, with both recovery rates more than 99%. The method can employ scheme of batch operation or continuous recycling, which is adapted for industry utilization.

A sintering furnace type cooling device relates to the technology field of sintering cooling devices. An outlet of a sintering machine is provided with a single roll crusher; an outlet of the single roll crusher is provided with a hot sinter screen; the hot sinter screen is connected with an inlet of a chute; an outlet of the chute is connected with a furnace opening of a cooling furnace; a distributing device is arranged inside the furnace opening of the cooling furnace; a ventilation device is arranged at the bottom of the cooling furnace; a discharging device is connected under the ventilation device; a belt conveyer is arranged under the discharging device; the cooling furnace comprises a pre-store area which is arranged on the upper portion, a cooling area which is arranged on the lower portion and an annular flue area which is arranged on the periphery of the pre-store area; radial supporting columns which are integrally and radially distributed are arranged at the bottom of the annular flue area; a high-temperature flue gas adjustment plate is coated on two adjacent radial supporting columns; and the high-temperature flue gas adjustment plate is capable of sliding along a diametrical direction of the annular flue. The sintering furnace type cooling device has the advantages of effectively overcoming the defects that an existing sintering cooling system is serious in air infiltration and low in waste heat utilization rate, achieving efficient heat replacement, improving the temperature of the flue gas and reducing energy consumption in cooling.

The invention relates to a method for preparing p-xylene by separating and crystallizing mixed xylenes, and mainly solves the problem of large energy consumption in a crystal separating process in the prior art. To well solve the problem, the invention adopts the following technical scheme of preparing the p-xylene by separating and crystallizing the mixed xylenes that: p-xylene crystal I and crystallization filtered stock I are obtained by crystallizing mixed xylenes in a primary crystallizer and separating crystal mush; the crystal I is melted by heat exchange, is partially returned to a first solid-liquid separator, and partially enters a product tank; the crystallization filtered stock I is separated into two streams, one stream returns to the crystallizer, and the other stream entersa pulping tank; one part of crystal mush in the primary crystallizer is cleared so as to obtain clear crystallization stock I which enters the pulping tank; p-xylene crystal II and crystallization filtered stock II are obtained by separating the crystal mush in a secondary crystallizer by a second solid-liquid separator; the crystal II enters the pulping tank, and separated after mixed heat exchange so as to obtain p-xylene crystal III and crystallization filtered stock III; the crystal III is melted by heat exchange, is partially returned to a third solid-liquid separator to be used as cleaning solution, and partially enters the product tank; the crystallization filtered stock II is separated into two streams, one stream returns to the secondary crystallizer, and the other stream enters the pulping tank; the crystallization filtered stock II and the mixed xylenes are subject to heat exchange and enter a stock tank; and the clear crystallization stock II and the mixed xylenes are subjected to heat exchange and enter the stock tank. The method can be used in p-xylene industrial production.

The invention discloses a heat pipe heat recovery all fresh air dehumidification air-conditioning device. The heat pipe heat recovery all fresh air dehumidification air-conditioning device is composed of heat pump devices, heat pipes, a surface air cooler, a humidifier, a fresh air channel unit and an exhaust channel unit. One set of the heat pump devices comprises a compressor, a four-way reversing valve, a condenser, an evaporator, a refrigerating fluid flow direction control device and a throttle device, wherein the refrigerating fluid flow direction control device is composed of a reservoir, a dry filter, a throttle device and four one-way valves; the other set of the heat pump devices is composed of a compressor, two electromagnetic valves, two condensers, an evaporator and a throttle device. The heat pipe heat recovery all fresh air dehumidification air-conditioning device can dehumidify and cool and humidify and heat fresh air, and by means of an efficient heat recovery device, saves energy sources and can be widely applied to places with high requirements on the fresh air.

The invention relates to the field of defrosting and refrigeration control technology of a refrigerator and discloses a refrigerator defrosting and refrigeration system which utilizes circulating heat of a refrigerating chamber. The system comprises a refrigerating chamber (1), a freezing chamber (2), a chamber body (3) of an evaporator, a first air channel (4) for connecting the freezing chamber (2) and the chamber body (3) of the evaporator and a second air channel (5) for connecting the refrigerating chamber (1) and the chamber body (3) of the evaporator; a first fan (M1) is arranged on the first air channel (4); a second fan (M2) is arranged on the second air channel (5); a connecting port between the first air channel (4) and the chamber body (3) of the evaporator is provided with a first electric air door (K1); and an air return port (8) of the refrigerating chamber and an air return port (9) of the freezing chamber are provided with a second electric air door (K2). In addition, the invention also provides a method for controlling the refrigerator defrosting and refrigeration system which utilizes the circulating heat of the refrigerating chamber. The system and the method can effectively reduce energy consumption of the refrigerator.

The invention discloses heat insulating coating surface glue for insulating heat through reflection and heat conversion. Based on reflection and heat insulation, a heat converting material is added into the heat insulating coating surface glue, after being absorbed by a coating layer, part of unreflected heat energy can be converted by the heat converting material into radiant energy to be released into the atmosphere, thus, 98% of heat from the sun can be insulated. The invention also provides a heat insulating coating which comprises the surface glue, intermediate glue and bottom glue, has excellent heat insulating performance, and can be used for remarkably reducing the temperature of buildings, industrial chemicals tanks and various equipments requiring heat insulation and reducing the energy consumption for temperature reduction.

The invention discloses a method for purifying hydrocyanic acid from mixed gas containing the hydrocyanic acid, which comprises an absorption step and a rectification step, wherein in the absorption step, pressurizing the mixed gas containing the hydrocyanic acid to 0.11-1.5 MPa, then cooling to 10-80 DEG C, introducing into a pressure absorption tower, and pressurizing and absorbing the hydrocyanic acid in the mixed gas with absorption liquid, i.e. acidic aqueous solution with a pH value of 1-6 under the conditions that the pressure in the tower is 0.11-1.0 MPa, and the temperature is 0-60 DEG C to obtain hydrocyanic acid absorption liquid. The method has the beneficial effects that the existing atmospheric absorption method is replaced by a pressure absorption method to absorb the hydrocyanic acid in the mixed gas containing the hydrocyanic acid; the absorption temperature can be improved to 60 DEG C; the concentration of the hydrocyanic acid in the hydrocyanic acid absorption liquid can be improved by 3-10 times, so that the purifying efficiency of the hydrocyanic acid can be remarkably improved; and meanwhile, the energy consumption is greatly reduced and can be reduced by 80 percent to a maximum extent.

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

The invention discloses a motor cooling system, a control method, a device and an electric vehicle. The control method comprises the step that the motor temperature and the motor controller temperature are detected; speed adjusting control is conducted on a cooling water pump when the motor temperature and the motor controller temperature meet the first preset condition; and speed adjusting control is conducted on a heat dissipation fan when the motor temperature and the motor controller temperature meet the second preset condition. According to the control method, the technical problem of large energy consumption of a motor cooling system of an electric vehicle in the prior art is solved.

The invention discloses an energy-saving system and technique for recovering aluminum ions and sulfuric acid in an oxidation tank and shortening the oxidation electrode distance. By means of the system and the technique, the problems that during the existing oxidation process of aluminum alloy, the oxidation temperature of the oxidation interface is high, the dissolved quantity of an oxidation film is large, and oxidation energy consumption is high are solved. An energy-saving device for shortening the oxidation electrode distance comprises the oxidation tank, a refrigerator, a titanium exchanger, a first pump, an overflow tank and a pipeline, and further comprises a mobile oxidation polar plate device. The mobile oxidation polar plate device comprises a plurality of drive motors, a mobile positioning device, a mobile cathode cooling pipe, an anode conductive base and a negative pole conductive device. A master energy-saving oxidation basin / tank aluminum ion and sulfuric acid recovery system with the energy-saving device for shortening the oxidation electrode distance further comprises an aluminum ion crystal product recovery system, a sulfuric acid oxidized liquid recovery system, a gas stirring system and a defrosting system. The oxidation tank aluminum ion and sulfuric acid recovery technique adopting the master energy-saving system comprises the steps of cycle circulation of oxidized liquid, recovery of aluminum ion crystal products, recovery of the sulfuric acid oxidized liquid, gas stirring and defrosting.

The invention relates to the field of low-temperature gas separation, in particular to a system and method for preparing high purity carbon monoxide and hydrogen-enriched co-production liquid methane. The system mainly comprises a raw material gas purification unit, a low-temperature liquefying separation unit, a CO product compressor and a mixed refrigerant compressor. The low-temperature liquefying separation unit comprises a main heat exchanger, a methane washing tower, a dehydrogenation tower, a demethanization tower and a denitrification tower. A first evaporator is arranged at the bottom of the dehydrogenation tower; a second evaporator is arranged at the bottom of the demethanization tower; a first condenser is arranged on the top of the demethanization tower; a third evaporator is arranged at the bottom of the denitrification tower; and a second condenser is arranged on the top of the denitrification tower. According to the system and method, while high purity products rich in H2 and CO are obtained through four-tower process flow, high purity liquid methane can be obtained; the adaptability of a device to raw material gas is high; the requirement for raw material gas purities of the device is lowered; and part of CO is extracted from the tail stage or the middle stage of the CO product compressor to be used as a cold source and a heat source of a rectifying tower circularly according to the pressure of CO product gas, a nitrogen compressor and an expander are omitted, the number of devices is small, and the investment is small.

The invention discloses a controller, a control system and a control method. The controller is applied in an air adjusting system and comprises a receiving module, a control module, and a signal sending module. The receiving module is used for receiving temperature of a space where an air-conditioner is located and outdoor temperature and sending the indoor temperature and the outdoor temperature to the control module. The control module is used for generating control signals according o the indoor temperature and the outdoor temperature and preset control logics and sending the control signals to the signal sending module. The signal sending module is used for receiving the control signals and sending the control signals to the air-conditioner so as to control on-off of the air-conditioner, or sending the control signals to ventilation equipment (including a door / a window or other ventilation equipment) so as to control on-off of the ventilation equipment. The controller, the controller system and the controller method can effectively reduce energy consumption of the air adjusting system.

The invention relates to a method for separating p-xylene from mixed xylene, and mainly solves the problem of high energy consumption during the separation in the prior art. The method comprises the following steps of: crystallizing the mixed xylene in a crystallizer and allowing the crystal magma to flow out from the bottom of the crystallizer; separating the crystal magma by a solid-liquid separator to obtain p-xylene crystals and crystallized and filtered mother liquor; melting the p-xylene crystals after heat exchange, wherein 5 to 30 weight percent of the p-xylene is returned to the solid-liquid separator to serve as washing solution, and 70 to 95 weight percent of the p-xylene serving as a product enter a product can; the crystallized and filtered mother liquor is divided into two streams, of which 5 to 95 weight percent of the crystallized and filtered mother liquor of the first stream is returned to the crystallizer, and 5 to 95 weight percent of the crystallized and filtered mother liquor of the second stream is fed into a mother liquor can after exchanging heat with the mixed xylene; clarifying a part of crystal magma in the crystallizer to obtain crystallized clear mother liquor; allowing the crystallized clear mother liquor to flow out of the side face of the crystallizer; and packaging the crystallized clear mother liquor in the mother liquor can after exchanging heat with the mixed xylene. The technical scheme for separating the p-xylene from the mixed xylene solves the problem well and can be used in the industrial production of the p-xylene.

The present invention is fluid catalytic cracker with fast separation of oil gas from catalyst. The fluid catalytic cracker has a riser with outlet connected to thick coiled pipe inside the tube settler, a stripping device below the tube settler, a catalyst regenerator connected through pipe tot lower end of the stripping device, and a top coiled pipe outside the tube settler. The fluid catalytic cracker can realize the efficient and fast gas-solid separation in the separation efficiency as high as 99.99 %, reduce average oil gas residence time to less than 2-3 sec and decrease scaling, and has compact structure and low cost.

The invention relates to a building structure and equipment integrated passive house and a building method thereof, and belongs to the field of energy conservation of buildings. The building structure and equipment integrated passive house comprises an outer window, a bearing exterior wall plate, floors, a roof panel, a ventilating system pipe, an air inlet, an air supply outlet, an air returning opening, a check valve, an air outlet, an unpowered air hood, a CO condensation sensor, a water storage tank and a valve, wherein the outer window is provided with outer window glass and outer sunshade equipment; the outer window glass is provided with a Low E coating film; the bearing exterior wall plate, the floors and the roof panel have CS plate type structures; a portion, which is inlaid in the CS plate type structures, of the ventilating system pipe is defined as an inlaid type ventilating system pipe; the ventilating system pipe comprises a fresh air pipe and a returned air pipe; and the inlaid type ventilating system pipe comprises an inlaid type fresh air pipe and an inlaid type returned air pipe. Comfort level of an indoor environment can be improved, energy consumption of heating and refrigerating of buildings can be greatly reduced, half prefabrication of bearing components and ventilating pipes of the buildings is realized, the passive house is produced in a factory in a standard and series mode, and is assembled in a field, reliability degree of refinement construction of the passive house is guaranteed, construction efficiency is improved, the indoor environment does not have equipment, and an outdoor environment does not have pipelines.

The invention discloses an oxidation tank aluminum ion and sulfuric acid recovery and modification pulse power supply energy saving system and a process, and solves the problems of high temperature on an oxidation interface, high dissolving quantity of an oxide film and high energy oxidation consumption in traditional aluminum alloy oxidation. A modification pulse power supply energy saving device comprises an oxidation tank, a refrigerator, a titanium exchanger, a pump 1, an overflow tank and a pipe, and further comprises a movable oxidation polar plate device; the movable oxidation polar plate device includes multiple driving motors, a mobile positioning device, a mobile cathode cooling pipe, an anode electric conducting base and a cathode electric conducting device; and a communicated oxidation power supply of the anode electric conducting base is a frequency / amplitude-adjusted pulse direct-current oxidation power supply. A main system using the energy saving device further comprises an aluminum ion crystallization product recovery system, a sulfuric acid oxide liquid recovery system, a gas stirring system and a defrosting system. A recovery process using the energy saving main system comprises an oxide liquid circular cooling step, an aluminum ion crystallization product recovery step, a sulfuric acid oxide liquid recovery step, a gas stirring step and a defrosting step.

The present invention relates to fast oil gas and catalyst separation in hydrocarbon material fluid catalytic cracking, and is especially one catalytic cracker without settler. The catalytic cracker without settler features the stripping unit with lower end connected via a vertical pipe to one regenerator, the first cyclone separator connected to the upper end of the stripping unit, the riser tube with outlet connected to the first cyclone separator via pipeline, and the second cyclone separator connected serially to the upper end of the first cyclone separator and with material feeding structure communicated to the stripping unit. The catalytic cracker can realize the efficient fast gas-solid separation in the separating efficiency up to 99.99 % and average oil gas residence time shortened to 2-3 sec, and has less scaling, compact structure and low cost.

The invention discloses a data center cooling solution. A device for implementing the solution comprises a case and a refrigeration device arranged in the case, the refrigeration device comprises evaporators which are shared by a heat pipe heat exchange system and a heat pump refrigerating system; the case comprises a front wall, a rear wall, a left side wall, a right side wall, an upper wall, a lower wall and a back plate, the front wall is parallel to the rear wall, the left side wall and the right side wall are connected with the front wall and the rear wall, the upper wall and the lower wall are perpendicular to a cabinet, and the back plate is parallel to the front wall and the rear wall of the case; the back plate separates the case into front space and rear space which are first space and second space respectively; the first space and the second space in the case are separated into a plurality of cabinets by a plurality of the parallelly placed evaporators, and the cabinets are device placing areas and fan chambers respectively; a server system is arranged in the device placing areas; and the cabinets which are close to two side walls in the case are fan chambers without the back plate, and the middle cabinet can be arranged to be a corresponding fan chamber according to air quantity requirements. According to the data center cooling solution, by means of fusion of a heat pipe and a heat pump refrigerating device, forced draught cooling efficiencies are improved, refrigeration energy consumption is reduced, and influences of dust on the server system are prevented.

The invention discloses colorful heat insulating and waterproof building paint, which comprises the components in parts by weight as follows: 20-30 parts of styrene-acrylic emulsion, 20-30 parts of natural rubber resin, 3-10 parts of paint dispersant, 10-15 parts of ethylene glycol, 0.5-1 parts of defoamer, 10-20 parts of pigment, 30-50 parts of low heat conductive coefficient filler, 4-8 parts of white carbon black and 10-15 parts of water. The colorful heat insulating and waterproof building paint is abundant in color, and can well meet the requirement of colorful outer wall paint of buildings with excellent heat insulating and waterproof effects which are same as those of white paint. The paint contains neither heavy metals nor formaldehyde and is relatively beneficial to health of human bodies. The paint is applicable for concrete pavements, asphalt pavements, plastic pavements, pavements of glass fiber reinforced plastics, and metal pavements, and is convenient to construct in ways of spray coating, brush coating and rolling coating.

The invention relates to an installation method for thermal insulation and decoration integrated facade panels in the field of construction methods of the construction industry. The method includes the following steps: (Step 1) main wall surface treatment; (Step 2) datum line making; (Step 3) framing installation; (Step 4) thermal insulation and decoration integrated facade panel installation; (Step 5) gap filling; (Step 6) sealant filling; (Step 7) panel surface cleaning. When the method disclosed by the invention is adopted, integral installation is convenient, cost is reduced, the construction period is short, the load of facade panels is reduced greatly, the utilizability of space and land is enhanced, the application range is wide, temperature is kept, heat is insulated, energy consumption is reduced, structural destruction caused by the circulation of rain, snow, freezing, thawing, dryness and wetness is prevented, the worry about the water seepage of wall surfaces is eased after installation, the phenomenon that indoor wall surfaces go moldy is effectively prevented, and the thermal insulation and decoration integrated facade panels are environment-friendly and durable.

The invention discloses a method for supplying air to a telecommunication machine room and a system. The method includes that an ambient temperature monitor monitors outdoor ambient temperature in real time and transmits obtained ambient temperature values to an air supply mode controller; the air supply mode controller receives the ambient temperature values and determines an air supply mode of the telecommunication machine room according to the ambient temperature values; and the air supply mode starts corresponding operation according to the air supply mode. An environment with stable temperature and stable humidity in the machine room is realized by means of effectively utilizing an outdoor cold source and various air supply modes, and refrigeration energy consumption of the machine room is greatly reduced.

The invention discloses a computer room air conditioner system and a computer room refrigerating control method and device. The computer room air conditioner system comprises an air inlet chamber, anair mixing chamber, an air return chamber, an air feeding chamber, indirect refrigerating equipment, a fresh air valve, a first air return valve, a second air return valve, an air exhaust valve and anair feeder, wherein the air inlet chamber, the air mixing chamber and the air return chamber are arranged in sequence and are in the same layer as a computer room ceiling, and the air feeding chamberis in the same layer as a computer room body; an air vent is formed between the air inlet chamber and the air feeding chamber, a first air opening is formed in the side, close to the air mixing chamber, of the air inlet chamber, a second air opening is formed in the side, close to the air inlet chamber, of the air mixing chamber, and the indirect refrigerating equipment is arranged between the first air opening and the second air opening; the fresh air valve is arranged in a fresh air inlet of the air inlet chamber; the first air return valve is arranged between the air mixing chamber and theair return chamber, and the second air return valve is arranged between the air mixing chamber and the air feeding chamber; the air exhaust valve is arranged in the air exhaust of the air return chamber. Compared with the prior art, the air cleanness of a computer room can be improved, and the refrigerating energy consumption of the computer room can be lowered.

The invention relates to an energy-saving engine room heat regulation system of a high-power wind driven generator, which is used for solving the problem of heat regulation of wind driven generators. The heat regulation system consists of a refrigeration circulating system and a liquid cooling circulating system, wherein the refrigeration circulating system is arranged outside the engine room of the generator and is a refrigerant closed loop comprising a compressor, a condenser, a main electromagnetic expansion valve and an evaporator; the liquid cooling circulating system comprises a frequency-conversion control cabinet, a generator, a gearbox, an evaporator and a circulating pump, the frequency-conversion control cabinet, the generator and the gearbox are connected together in parallel and then connected with the evaporator and the circulating pump to form a secondary refrigerant closed loop, and the evaporator is formed by an inner pipe and an outer pipe which are sleeved together; the inner pipe is connected into the refrigeration circulating system; and a cavity between the inner pipe and the outer pipe is connected into the liquid cooling circulating system. The heat regulation system organically combines a refrigerating device and a heating device, has strong cooling capacity and low cooling and heating energy consumption and can guarantee the safe and efficient operation of the high-power wind driven generator.

The invention discloses a recombination device for internal combustion engine cooling cycle and exhaust energy recovery ORC and a control method. The recombination device is characterized in that an electric water pump A is arranged between a condenser in ORC and a heat dissipation water tank outlet in internal combustion engine cooling cycle so as to achieve ORC condensing pressure control and rapid warming of an internal combustion engine. The control method comprises a control method for an ORC controller and a control method for an internal combustion engine cooling cycle controller. The control method for the ORC controller is a control method based on a state machine, the state machine defines running modes of the recombination device such as shutdown, warming, starting, impulse starting, doing work and protection and transfer logical relations of the modes, and the corresponding control operation is performed on the basis of the determined running mode. A technical solution to two application problems including heat source fluctuation and cold source lacking which occur in ORC recycling of vehicle internal combustion engine exhaust energy under the road working conditions is provided.

The invention discloses a green low-radiation reflective glass and a preparation method therefor. The green low-radiation reflective glass comprises a glass substrate, a first nickel-chromium alloy film, a second silicon-aluminium alloy film, a third zinc-aluminium alloy film, a fourth silver layer; a fifth nickel-chromium alloy film, a sixth zinc oxide-aluminium alloy film and a seventh silicon-aluminium alloy film which are sequentially and compactly laminated. The preparation method comprises the following steps: 1) sintering a target material; 2) pre-treating a glass material; and 3) carrying out coating treatment. According to the low-radiation reflective glass prepared by virtue of interference on light by various metal materials on a common colorless transparent float glass substrate, the reflection color of the glass in the sun is green and thus good decorating and energy-saving effects are achieved; the product can be processed in different places, so that the manufacturing cost of an enterprise is lowered; and the glass can be further manufactured to hollow glass, so that better light-controlling and energy-saving effects are achieved.

The invention relates to a method for producing dimethylbenzene by using a multistage suspension crystallization process, mainly solving the problems that the energy consumption is high, crystals are hard to wash, and products are unstable in quality and yield in the prior art. The method comprises the following steps: separating out partial dimethylbenzene products through a high-temperature primary crystallization process; separating out the residual paraxylene by using a secondary crystallization process; collecting crystals in the secondary crystallization process by using a crystal slurry tank with a thickening function; carrying out pulpifying washing and heating aging on the low-temperature crystals prepared by the temperature secondary crystallization process by using a high-temperature primary crystallization mother liquid so that the purity of the product is ensured, thereby obtaining the residual paraxylene products; and thickening the crystal slurry in the bottom of the crystal slurry tank and then introducing thickened crystal slurry into a solid-liquid separator to be separated. The method can be applied to production of paraxylene crystals.

The invention provides a selection method for host equipment applied to an air-conditioning system. The method comprises the steps that an annual air-conditioning load is calculated, a calculation model is determined according to the characteristics and geographic position of a building, relevant parameters of the calculation model are acquired according to boundary conditions, and an annual air-conditioning cooling load is calculated in the calculation model; the running duration of the refrigeration host equipment under a partial load is determined, wherein the running duration of the refrigeration host equipment under the partial load is analyzed and determined according to the annual air-conditioning cooling load obtained through the calculation model; the refrigeration host equipment is selected, and a refrigeration host equipment running scheme with the highest energy-saving rate is selected and determined; and the energy-saving rate of the selected and determined refrigeration host equipment running scheme is verified. The method is a new method for refrigeration host equipment model selection in air-conditioning system design, it is convenient to select different kinds of air-conditioning refrigeration host equipment for different building types of different cities and improve the air-conditioning system and the running mode, therefore, energy is saved, consumption is reduced, and the air-conditioning system is more reasonable in design.

The present invention is fluid catalytic cracker with fast separation of oil gas from catalyst. The fluid catalytic cracker has a riser with outlet connected to thick coiled pipe inside the tube settler, a stripping device below the tube settler, a catalyst regenerator connected through pipe tot lower end of the stripping device, and a top coiled pipe outside the tube settler. The fluid catalytic cracker can realize the efficient and fast gas-solid separation in the separation efficiency as high as 99.99 %, reduce average oil gas residence time to less than 2-3 sec and decrease scaling, and has compact structure and low cost.

The invention discloses an efficient natural-light guide illuminating system applied to buildings, and relates to the technical field of natural light illuminating systems. The efficient natural-light guide illuminating system comprises a light collection device, a light guide system and a diffusion device. The efficient natural-light guide illuminating system is characterized in that the efficient natural-light guide illuminating system further comprises a rainproof device and an anti-theft device, the light collection device comprises a light collection cover, the light guide device comprises a light guide tube, the diffusion device comprises a fixing ring, a diffuser and a decorative ring, the rainproof device is arranged below the light collection cover and connected with the anti-theft device, the light guide tube is arranged below the rainproof device, and the diffuser is arranged below the light guide tube. The efficient natural-light guide illuminating system is simple in structure, convenient to mount, obvious in power-saving effect, good in actual illuminating effect, rainproof effect and anti-theft effect, and wide in application range; life quality of people is greatly improved through application of the system, a healthy, environmental-friendly, safe and energy-saving illuminating mode is provided to people, and a light guide tube system can be applied to the buildings in various styles.