397results about How to "Lower energy costs" patented technology

The invention discloses a circulating sludge biological fermentation tower which comprises a tower body, an openable tower cover, a storage tank and a plurality of rotatable fermentation devices, wherein the openable tower cover is arranged on the top of the tower body; the storage tank is arranged at the bottom of the tower body; the rotatable fermentation devices are arranged in the tower body in parallel; the fermentation devices divide an inner cavity of the tower body into a plurality of layers of fermentation bins along the axial direction; the lower part of each layer of fermentation device is provided with a ventilating oxygen supply pipeline communicated with a blower; the upper part of each layer of fermentation device is provided with an air outlet pipeline communicated with aninduced draft fan and a monitoring device; the monitoring device is controlled by a control room; and a mechanism for driving the fermentation devices and the tower cover to move, the blower and the induced draft fan are all controlled by the control room. The invention also discloses a circulating sludge biological processing system and a processing method. By the circulating sludge biological fermentation tower, the circulating sludge biological processing system and the processing method, industrial biological fermentation desiccation treatment can be continuously and stably carried out onsludge under the conditions of high efficiency and low energy consumption.

The invention discloses an energy-saving monitoring system, which comprises a plurality of data acquisition devices, a synthesis tester connected with the data acquisition devices, and a background computer connected with the synthesis tester; the data acquisition devices comprise electric data acquisition devices, heat energy data acquisition devices, and other devices, and are connected with the synthesis tester through bus lines; the synthesis tester comprises a CPU unit, and a data storage unit, a data statistic unit, data computing unit, a bus interface unit, and a long-distance data transmission unit which are connected with the CPU unit; the background computer comprises a data collecting unit, a data storage Unit, and an energy-saving analysis unit connected with the long-distance data transmission unit of the synthesis tester through the data collecting unit by adopting long-distance transmission means. The invention can effectively reduce the energy source waste through the monitoring to the energy consumption condition, thus realizing the preliminary behavior energy conservation; and completes energy saving renovation and realizes technical energy conservation by using technical means.

The rail transportation system of small vehicles is used to replace available underground railway and light rail system, and has small driverless vehicles running in closed rail. The system consists of vehicles, closed rails and stations, the vehicles are computerized automatic ones, the closed rails is provided with vehicle controlling equipment, and the vehicles are started from stations randomly for express service from station to station. The present invention has the advantages of great traffic amount similar to that of main stem transportation, personalized service, low construction investment and low running expensive. It may be used for both passenger transport and cargo transport, and municipal rail transportation network may be constructed.

The invention discloses a low-energy-consumption low-carbon-emission economical energy-saving urban sewage treatment method. The method comprises the steps that: 1, the to-be-treated wastewater is collected by a sewage pipe network and then is filtered by lattices, and is lifted by a pump to enter a pulse water distribution pot of a novel efficient turn-back anaerobic biochemical pool (ABR); 2, the swage subjected to the treatment in step 1 flows into a circulation-flow biological oxidization pool; 3 the effluent water from the step 2 flows into an artificial reinforced biological contact oxidization pool reconstructed by a water body from natural tunnels and reservoirs; and 4, the effluent water from the step 2 or the step 3 flows into constructed wetlands. After the sewage is treated by the above steps, the most pollutants in the water are effectively removed and the treated effluent water reaches the standard first-grade A in GB 18918-2002 ''Discharge standard of pollutants for municipal sewage treatment plant''. The energy-saving sewage treatment purification process with low cost, low energy consumption, low carbon emission and low operating cost is particularly suitable for the sewage treatment in small towns or rural areas.

The invention discloses a particle electrode catalyst filling for three-dimensional electrode and preparation method, calculated by weight percent, the material comprises activated charcoal 50-54%, adhesive 14-19%, the initiating agent comprises 13-16% ferrum oxide, 12-15% copper oxide, 4-7% manganese oxide, 1-1.5% zinc oxide, 0.5-1% zirconium oxide, 0.5-1% cerium oxide.

The invention discloses a technology for direct in-situ treatment and ecological restoration of polluted water body, belonging to the field of environment protection. The technology is a systems engineering which synthesizes three contents: 1, a water flow stirring elevator for generating high-flow water flow is installed, fixed and used in water body, so that the water body which is free of flowability or very low in flowability is changed into running water from dead water, and the biochemical reaction environment of water body can be improved; 2, biological membrane fillers which are provided or enriched with a mass of microbial community are arranged in river and lake water body which is preferably oxygenated, so that the organic pollutants or the other microorganism-degradable pollutants in water can be effectively removed in a degradable way; and 3, aerobiont contact oxidation reaction in polluted and nutrition-enriched river and lake water body is carried out, the aquatic plants are planted and the aquatic animals are bred, and the pollutants in the river and lake water body are biologically degraded and purified, so that the in-situ treatment and purification of the polluted river and lake water body can be realized.

The invention relates to a waste incineration fly ash sintering reduction treatment technique which is especially applicable to treatment and disposition of waste incineration fly ash of which the salt content is lower than 20%. The fly ash is added with a dechloridation fusing assistant to intensify the volatilization of heavy metals and the decomposition of dioxin, heavy metals and chlorine salt are intensively concentrated in secondary fly ash within a relatively low temperature range, and then the secondary fly ash is washed by water so as to further realize concentration of pollutants and reduction of the fly ash. The water-washed fly ash is returned to a rapid sintering device so as to completely degrade dioxin type pollutants; water-washing liquid is evaporated and concentrated to recycle the salt by using the afterheat of a sintering system, the concentrated liquid and mud obtained by evaporation and the obtained sintered body are safely buried or recycled. The treatment technique disclosed by the invention is relatively simple in overall process and equipment, the energy consumption and the treatment cost are relatively low, the environmental friendliness of the obtained end product is improved, and the long-term potential impacts of the fly ash on the environment are minimized.

The invention relates to a method for realizing innocent treatment and comprehensive utilization of kitchen waste, comprising the steps of 1, sorting kitchen waste; 2, separating solid and liquid; 3, separating oil and water; 4, crushing waste; 5, performing homogenate and size mixing; 6, biologically acidifying; 7, performing anaerobic fermenting; and 8, comprehensively utilizing product. The process method is simple; the investment operation cost is low; the oil in the waste can be extracted; the biogas is produced by anaerobic fermentation of the kitchen waste, and the organic fertilizer can be produced, therefore, the innocent treatment of the kitchen waste can be realized, the waste can be converted into energy, and the virtuous circle of resource substance can be realized.

The invention discloses a nitration method of iron-carbon nitrosation, a reactor therefor and a method of sewage water denitrogenation. Iron filings and active carbon are added in the reactor hierarchically or mixed, water containing ammonia nitrogen is supplied in the reactor and oxygen enriched air is blew in thereof, only inorganic iron-carbon in condition of aeration, ammonia nitrogen is conversed into nitrite and nitrate steadily. The reactor is composed of a supporting layer, a back purge system, a water-inlet- distribution device, a air diffuser, iron / carbon composite material, a drift eliminator and bed body, nitrosation or nitration is finished in action of ammonia sewage water. The reactor is combined with a denitrify reactor, a anaerobic bioreactor, or used as a aeration biological filter of biology filler to finish denitrification process of nitrogen sewage water. The reactor has advantages of stable performance, high efficiency, low power cost and simple maintenance. An integrated denitrification technics is formed in the reactor, denitrification efficiency of the whole flow is improved.

The invention discloses a method for preparing cellulose fiber. By using melting spinning technology, the method comprises the following steps of: 1, mixing cellulose and ionic liquid in a mass ratio of 5-8:5-2 to obtain an uniform mixture, wherein the cellulose is wood pulp, cotton pulp or bamboo pulp with degree of polymerization of 400 to 1,000; the ionic liquid consists of cations and anions; the cations are substituent-containing alkyl imidazole ions, wherein the substituent is more than one of hydrogen, C1 to C6 alkyl group, ethyl, propenyl, butenyl, ethoxyl, hydroxypropyl and alkoxy groups; the anions are halogen ions, BF4-, PF4-, SCN-, CN-, OCN-, CNO-, CF3SO3-, CFCOO-, CH3COO-, and (CF3SO2)2N- or (CF3SO2)2Cl-; 2, feeding the mixture into a double-screw extruder for melting spinning and stretching the extruded yarn by 0.5 to 6 times; and 3, washing, performing thermal forming and winding to obtain the cellulose fiber.

The invention discloses a high-temperature aerobic fermentation process for sludge with low energy consumption and no pollution, and relates to the technology for aerobic fermentation treatment on dewatered sludge. The process is used for decontamination, stabilization and reduction treatment of town sewage sludge, sewage sludge, organic industrial wastewater sludge and organic sludge. In the process, the dewatered sludge and auxiliary materials are mixed, the mixture is crushed into composting particles with the diameter less than or equal to 20mm, the composting particles are evenly distributed into a pile with the height of 2m by a spreader, and the pile is covered by fermented decaying products to effectively reduce the odor emitted by the composting. A fermentation bin with two combined or separated bins is provided with a ventilation and oxygen supply system which is detachable, is easy to clear, prevents blockage and has even gas distribution, and a pile turning device inside; and the oxygen concentration, fermentation temperature, water ratio of the pile in the fermentation bin are controlled, so that sludge fermented products meet national standard. The process facilitates air supply and aerobic fermentation of the pile due to small diameter of the composting particles and the loose pile, has thorough fermentation of the particles of the sludge mixture, improves the quality of the sludge fermented products, makes the sludge fermented products meet the decontamination, stabilization and reduction index requirements specified by the national standard, and greatly saves electric energy consumption and reduces operating cost.

The invention relates to a clapboard adsorption device and method for removing boron impurities in a chlorosilane system. The device is divided into four areas by a clapboard which has the same height as a tower type adsorption section and is placed in the middle of the tower: a public rectifying section (1), a tower type adsorption section (2), a side withdrawing section (3) and a public stripping section (4), wherein an adsorbent is filled in the tower type adsorption section (2). A chlorosilane material (5) containing impurities of boron compounds is fed at the middle part of the tower type adsorption section, light components (6) are obtained from the tower top, the purified product trichlorosilane (7) is obtained from the side withdrawing section, heavy components (8) are obtained from the tower bottom, and the operation pressure of the tower is 300-500 KPa. Through the process, the removal rate of the boron impurities is 80%, and the energy consumption is reduced by 60-80%. Compared with the former boron removal process, the flow is greatly simplified, and the energy consumption and equipment expenses are remarkably reduced. Based on effective removal of boron, the key components are separated, the separated components enter corresponding units of polycrystalline silicon production respectively, and the production cost is reduced.

The invention relates to a dissolving and processing method for wood, cotton, bamboo and hemp fiber with ionic liquid, which is characterized in that: (1) the pulverized wood or the pulverized cotton, the pulverized bamboo and the pulverized bast pulp are uniformly mixed with the ionic liquid; the spinning solution of the total solid content of 3 to 40% is formed through dissolving and deaerating for 1 to 120 hours at 35 to 160 degrees centigrade; wherein the weight ratio of the wood or the cotton, the bamboo and the bast is 30 to 80% : 7 to 60% : 10 to 60% ; (2) the spinning and the concreting bathing solidification are carried out after being filtered and deaerated; (3) the oiling and the drying process are carried out after being pulled, rinsed and bleached, so as to obtain a composite fiber. The dissolving and processing method for wood, cotton, bamboo and hemp fiber with ionic liquid has the advantages that: due to use the ionic liquid, the productivity is high, the recovery is easy, the requirement of the green production is satisfied and the prepared composite fiber has good mechanical strength; simultaneously the different fiber characteristics of a plurality of materials such as the wood or the cotton, the bamboo and the bast are synthesized; the source of the material is wide; the cost is low; and the advantages of various natural celluloses can be synthesized according to the requirement.

The invention belongs to a process for treating oil field produced water and belongs to the field of oil field produced water treatment, in particular relates to the process for treating the oil field produced water. In the process, at least a regulating water tank, an air flotation device, a pipeline mixer, a nitrogen power reactor, a sedimentation tank and an ultrasonic filter are adopted and the oil field produced water is treated by adopting a mode of combining air flotation oil and suspended matter removal, nitrogen preparation and ultrasonic filtration. The process for treating the oil field produced water has good treatment effect, high oil removing efficiency, corrosion resistance and low cost and has good effect in the actual application.

The invention relates to a method for removing oxygen-containing compounds in a narrow fraction of Fischer-Tropsch synthetic oil. A dividing-wall extractive distillation tower or a dividing-wall azeotropic distillation tower is adopted. According to a process, the dividing-wall extractive distillation tower or the dividing-wall azeotropic distillation tower is adopted to replace a conventional extraction or azeotropic distillation twin tower structure. After the separation and purification by the process, the mass content of the C5-C12 fraction product can reach 99% or above, and the recoveryrate can be 95% or more. The method has the advantages that a dividing-wall tower technology is combined with extractive distillation or azeotropic distillation, the energy consumption and device costcan be greatly reduced, and high economic benefits are created.

The invention belongs to the field of wastewater treatment and specially, relates to a system for treatment of acid mine drainage and resource recovery of iron, aluminum, copper and zinc in drainage. The system is characterized in that the system is composed of an iron removal system, an aluminum removal system, a copper removal system, a zinc removal system, a sedimentation basin 1 and a sedimentation basin 2 by sequential connection. Based on differences of precipitation performances of a metal ion under pH conditions and differences of solubility products (Ksp) of a reaction between copperand a sulfur-containing organic chelating agent and a reaction between zinc and the sulfur-containing organic chelating agent, through a fractional precipitation method, iron, aluminum, copper, zinc and the like are separated effectively; resource recovery and utilization is realized; hidden troubles of secondary pollution caused by waste residues are eliminated; and treated drainage reaches a reuse standard and can is fed directly into mineral processing pool for reuse. The system has the advantages of simple process, good effect of drainage treatment, stable operation, low costs of treatment, capital construction investment, energy consumption and operation, and wide application prospect.

The invention relates to a method for preparing acetophenone by biomimetic catalytic oxidation of ethylbenzene with oxygen, comprising the following steps: taking ethylbenzene as the raw material, selecting any one of 1-30ppm of mononuclear metalloporphyrin and mu-oxo-dinuclear metalloporphyrin or the composition of the two substances as the catalyst under normal pressure and in the absence of solvents, introducing oxygen at the flow rate of 10-60mL / min, initiating reaction at 130-136 DEG C and then carrying out reaction at 70-110 DEG C for 4-10h, thus obtaining the acetophenone. In the method, the way of high temperature quick initiation and low temperature reaction is adopted, thus minimizing the reaction initiation time, greatly shortening the reaction time, improving the reaction efficiency, reducing the energy consumption, lowering the operation cost and improving the reaction safety.

The invention relates to a preparation method of cellulose acetate fiber, in particular relates to a method for preparing cellulose acetate fiber after the cellulose acetate fiber is plasticized and modified by taking ionic liquid as a plasticizer. The method comprises the following steps of (1) evenly mixing and extruding the cellulose acetate fiber and the ionic liquid; (2) conducting vacuum drying on spinning materials; (3) conducting melt spinning: spinning the spinning materials through a metering pump and a spin sprayed plate, stretching through a hot roll, extracting liquor and washing; and (4) conducting oiling, drying and winding procedures to obtain cellulose acetate fiber with fiber breakage strength of 2.2-6cN / dtex. By adopting the preparation method of cellulose acetate fiber, the problems that the fiber mechanical property is poor, the breakage strength is low, and due to seeping or volatilization of the plasticizer, high fragility of cellulose acetate fiber grafted copolymer and difficulty of processing in the process of plasticizing and melt spinning cellulose acetate fiber, the fiber fineness is larger and the strength is low, and the like in the dry spinning process of cellulose acetate fiber in the prior art can be solved.

The invention relates to a jet-based micro-bubble generation method and a jet micro-bubble aerator. The aerator comprises a water inlet pipe, an air inlet pipe, an air suction chamber, a throat pipe section, and a diffusion pipe section, wherein a nozzle is connected to the water inlet pipe, the nozzle extends into the air suction chamber, and the air inlet pipe is also connected to the air suction chamber; the air suction chamber is a closed chamber, which comprises an outlet, the outlet is connected to the throat pipe section, the throat pipe section is connected to the diffusion pipe section, and ultimately, the diffusion pipe section extends into an external aeration device. Because the shear rate of a flow field at the position of the nozzle and / or in the throat pipe section is greater than the critical shear rate of big bubble breaking when the aerator is used, the geometrical shape of the jet micro-bubble aerator can be determined. The micro-bubble aerator has the advantages ofsimple structure, low cost, no blockage and convenience in repair; by the jet micro-bubble generation method, a large quantity of tiny bubbles can be continuously generated, the oxygen utilization rate is increased, and the energy consumption and cost of water treatment are reduced.

The invention relates to a method of preparing a cellulose fibre releasing anions by using the solvent method and the application. The method has the following steps: firstly, the comminuted cellulose, tourmaline powder and addition agent are well mixed with an ironic liquid, dissolved at a temperature of 35 to 160 DEG C, deaerated for 1 to 120 hours and a homogeneous and stable spinning solution with a total solid content of 3 to 30 percent is formed, wherein, the mixed mass ratio of the tourmaline powder is 0.01 to 20 percent and the added mass ratio of the addition agent is 0 to 10 percent; secondly, the spinning solution is filtered, deaerated, spinned and solidified through a coagulation bath; and thirdly, a composite fibre of cellulose and tourmaline powder is obtained after the procedures of stretching, water cleaning, bleaching, oiling and drying. The composite fibre has the functions of releasing anions, generating far infrared radiation, generating biocurrent and suppressing bacteria and is applicable to the fields of garments, ornaments and medical textiles. The ironic liquid used in the invention has high production efficiency, is easy for callback and conforms to the requirement of a green production. The prepared composite fibre has excellent mechanical strength and mechanical property, and the fabric made of the composite fibre can release anions, resist bacteria and prevent mildew.

The present invention discloses synchronous gas-liquid purifying high voltage DC / pulse discharge method and device. After waste gas and waste liquid is fed to the gas-liquid plasma generator and the hollow nozzle as the corona electrode and the metal net as the earthing electrode are connected separately to the positive pole and negative pole of the high voltage DC / pulse power source, the power source powers is turned on to make the plasma generator generate electric field of strength 1-10 kV / cm and produce corona discharge, so as to excite the free radical source matter molecule in the plasma generator and to generate active particle degrading pollutant and killing bacteria, viruses, micro algae and protozoa, with the purified liquid or gas being exhausted. The present invention has high treating efficiency, simple technological process, low power consumption, low treating cost and no secondary pollution.

The invention relates to an electrocatalysis particle for treating cyanide-containing waste water and a method for treating cyanide-containing waste water, belonging to the field of water treatment. The electrocatalysis particle comprises the following components in mass percentage: 40-44% of activated carbon, 14-19% of bonding agent, 13-16% of iron oxides, 22-25% of copper oxides, 4-7% of magnesium oxides, 1-1.5% of zinc oxides, 0.5-1% of zirconium oxides and 0.5-1% of cerium oxides. The electrocatalysis particle provided by the invention has low preparation cost and high mechanical strength, and the treatment efficiency of the electrocatalysis particle on cyanide-containing waste water is greatly improved as compared with the traditional catalysis particle. In the invention, the electrocatalysis particle is placed in an electrocatalysis device capable of recycling and cleaning the particle, the new electrocatalysis particle and a waste water treatment device capable of cleaning the electrocatalysis particle in place are organically combined to treat cyanide-containing waste water, and the best cooperative treatment effect is obtained by organically combining various treatment parameters. When the concentration of total cyanide is lower than 200 mg / L, the removal rate of cyanide-containing pollutants is greater than 60% by using the method of the invention, the power consumption for treating each ton of waste water is generally 1500-2000 W, and the operating cost is lower than 2.3 RMB. The invention has the advantages of investment saving, low energy consumption, low maintenance expense, fewer sludge amount, no secondary pollution and broad application prospect.

An anaerobic suspension-bed reactor for biologically treating sewage is composed of a biologic reaction unit whose main component is a biologic reaction tower with water distributor and three-phase separator, and a marsh gas circulation unit consisting of march gas buffering cabin, pneumatic pump and gas distributor.

The invention discloses a sewage biochemical treatment process and device utilizing active sludge and biological membrane combined circulating flow. The process comprises the steps that: pre-treated sewage is introduced into an anoxic area from a main water inlet hole; under the state that sewage and bioactive sludge are fully mixed, anoxic biochemical treatment is carried out; then, the mixture is introduced into an anaerobic area and is mixed with sewage entering the anaerobic area from a secondary water inlet hole; under the state that the sewage and the bioactive sludge are fully mixed, anaerobic biochemical treatment is carried out; then the mixture enters an active sludge and the biological membrane synergic treatment area; sewage mixed liquor forms inner-circulating water flow under the action of plug flow aeration, and circularly and repeatedly flows through a biological membrane filler area and an active sludge mixed aeration area; under the mixing and contacting dual-action of the active sludge and the microorganism on the biological membrane, aerobic biochemical treatment is carried out; and the sewage is discharged after reaching the sewage treatment requirement. The sewage biochemical treatment process combines the biological diversity of the active sludge and the dual characteristics of the biological membrane, is strong in capability of resisting impact load, strong in adaptability and good in sewage treatment effect, and realizes synchronous nitrogen and phosphorus removal.

The invention discloses a highly glutinous liquid's revolving liquid loop pipe transport method and device. Through the first pump, loop liquid storage pot is connected with revolving liquid loop synthesizer in which there are two spiral laminas whose phase difference is 180 DEG C. Through the second pump, highly glutinous liquid's storage pot is connected with highly glutinous liquid inner pipe which is in the middle of the synthesizer. Exit end of the synthesizer is connected with exit pipe in which there is spiral lamina. Rotary motion is generated while the liquid loop is moving forward in the invention. Liquid loop with higher density always lies around inner wall of the pipe through centrifugal force field generated by rotary motion. On the contrary, oil phase with lower density lies in the center of the pipe for lesser centrifugal force. Adopting the invention, driver fee and plenty of fuel oil is saved. In the process of fluxion, liquid film at two phases' interface will not break up to beget two phase liquids' blend.

A surface aerating machine with reverse umbrella type compoiste blade wheel for filling O2 in water is composed of motor, drive shaft, blade wheel with radial blades and air sucking holes, and radial air-liquid mixing tubes with air inlet communicated to said air sucking hole.

Disclosed is a method for preparing magnesium and ferro-silicon using ferro-nickel slag which is a by-product of a process for manufacturing ferro-nickel. The present invention provides a method for preparing magnesium from ferro-nickel slag, comprising the steps of: mixing a first material comprising ferro-nickel slang, ferro-silicon slag, ferro-silicon and a magnesium reduction catalyst; evaporating the mixed first material in a vacuum atmosphere of a thermal reduction furnace; and recovering magnesium evaporated in the thermal reduction furnace. In addition, provided is a method for preparing ferro-silicon from magnesium slag which is a by-product of a magnesium preparation for manufacturing a magnesium reducing agent, and preparing magnesium using ferro-silicon slag which is a by-product of a ferro-silicon preparation. According to the present invention, it is possible to resolve environmental problems by reducing energy costs and decreasing carbon monoxide discharge and recycle a resource discarded as a by-product of a process for preparing magnesium and ferro-silicon.

The invention relates to a combined hydrotreating method. According to the method, a wax oil raw material enters a first hydrogenation reaction zone with an up-flow manner, such that a hydrotreating reaction is carried out; a reaction effluent from the first hydrogenation reaction zone enters a thermal high pressure separator; liquid-phase material flow from the bottom of the thermal high pressure separator is further separated by a thermal low pressure separator, such that dissolved gas is separated, and the material is directly used as a feed for a catalytic cracking device; hydrogen-rich gas and hydrocarbon fraction separated from the top of the thermal high pressure separator are mixed with a fresh diesel raw material; the mixture is subjected to a hydrogenation modification reaction in a second hydrogenation reaction zone; a reaction effluent from the second hydrogenation reaction zone is separated, such that a hydrogen-rich gas is obtained; and the hydrogen-rich gas is compressed, and is circulated back to the first hydrogenation reaction zone and the second hydrogenation reaction zone. With the method provided by the invention, device equipment investment and operation cost can be effectively reduced, and oil refining process economic efficiency can be improved to a maximal extent.

The present invention discloses a soft soil foundation treatment construction method by adopting low-position precompressed dewatered dynamic compaction process. It is characterized by that said method includes the following steps: firstly, building horizontal dewatering network on the foundation surface; then placing vertical dewatering body in the soft soil layer, inserting said vertical dewatering body into the bottom portion of soft soil layer; setting water-collecting wells around the periphery of said soft soil foundation, and making them be communicated with water-collecting channel of precompressed zone edge; back-filling broken stone soil and rolling by layers.

The invention discloses a data center liquid cooling and air cooling combined cooling device comprising a liquid cooling mechanism and an air-liquid heat exchanger; the liquid cooling mechanism is arranged in computer equipment, and connected with high heating components in the computer equipment; one side of the computer equipment is provided with an air inlet; the air-liquid heat exchanger used for cooling the air entering the computer equipment is arranged outside the computer equipment; the liquid cooling mechanism and the air-liquid heat exchanger are connected in series or parallel through a liquid cycle pipeline; liquid cycle can cool down the high heating components in the computer equipment; the air-liquid heat exchanger arranged outside the computer equipment can cool down the air entering the computer equipment, thus taking away heats of low heating components (like a hard disc, or a north-south bridge chip), so one liquid cycle system can use the liquid cooling-air cooling combined mode to take away the heating of the whole computer equipment.