418results about How to "Lower condensation temperature" patented technology

The invention relates to a middle/low-temperature geothermic efficient thermoelectric coupling combined supply system based on an organic Rankine cycle (ORC), which has the main technical structure as follows: an ORC system, an absorption refrigeration system, a direct heat utilization system and an indirect heat utilization system are connected in series through a geothermic water supply pipeline. Specifically, after geothermic water supply is orderly connected to a first evaporator, a generator, a plate type heat exchanger and a third evaporator, the geothermic water supply is connected to inlets of a first condenser and a second evaporator in parallel, and the water discharged from the first condenser is introduced to a geothermic recharge well. Water discharged from a low-temperature side of the plate type heat exchanger is divided into two paths, one path is connected to a hot water storage box; and the other path is connected to a tail end device of the direct heat utilization system and then returns to a low-temperature water inlet of the plate type heat exchanger by means of a water pump. A valve and a water pump are orderly arranged between water sides of the first condenser and the second evaporator in series. According to the invention, geothermic tail water is adopted as a heat source so as to conform to energy saving and emission reduction requirements and be beneficial to environmental protection; and besides the utilization efficiency of the geothermic resources is improved, the system has a remarkable effect on reducing the emission of contaminants.

The invention discloses an air-conditioning/water-heating compound machine which comrprises (1) a circulation loop for an air-conditioning system, consisting of a first compressor, a first heat exchanger, a second heat exchanger and a first throttle mechanism; and (2) a circulation loop for a water-heating system, consisting of a second compressor, a third heat exchanger, a fourth heat exchanger and a second throttle mechanism. The second heat exchanger and the third heat exchanger form a heat-transfer connection. The fourth heat exchanger and a hot-water pipeline form a water-passage connection. The hot-water pipeline is provided thereon with a water inlet and a water outlet. The invention can reduce energy consumption and has simple structure.

The invention relates to a preparation process of a metal-organic framework porous adsorption material for C4-C8 normal paraffin and isoparaffin adsorption separation. According to the preparation method of the synthesized metal-organic framework porous adsorption material, metal ion nitrate and an organic ligand are dissolved according to the mass ratio of 1:1-15 in a mixed solution of N,N-dimethylformamide and N,N-diethyl formamide; stirring is carried out for 0.5-12 h; reaction temperature is controlled to 80-250 DEG C, and reaction time is 12-120 h; and by a hydrothermal synthesis method, the metal-organic framework porous adsorption material is prepared. The material has characteristics as follows: specific surface area is large; pore structure height is ordered; pore size is controllable; surface potential energy is controllable; and adsorption capacity of normal paraffin is large. The material can selectively adsorb normal paraffin from mixed materials of normal paraffin and isoparaffin, has high selectivity and has a wide practical application prospect in normal paraffin and isoparaffin separation.

The invention relates to a multi-condenser and double-return-air bypass dehumidification fresh air unit and an air conditioning method. The multi-condenser and double-return-air bypass dehumidification fresh air unit comprises an air feed channel and an exhaust channel. A first heat exchanger and an air feeder are sequentially arranged at the position of the air feed channel. A second heat exchanger and an exhaust fan are sequentially arranged at the position of the exhaust channel. The second heat exchanger is connected with an auxiliary heat exchanger. A first return air bypass valve and a second return air bypass valve are arranged between the air feed channel and the exhaust channel. According to the multi-condenser and double-return-air bypass dehumidification fresh air unit, during refrigerating, the second heat exchanger serves as a condenser, a refrigerant is condensed through the indoor low-temperature exhaust air, the condensation temperature of the unit is reduced, and reheating is conducted through mixing of bypass return air and low-temperature fed air on the air feed side so that cooling capacity losses caused by cold and heat offset can be avoided; in a heating inner circulation mode, an outdoor unit can be started to rapidly increase the indoor environment temperature; and in an outer circulation mode, the second heat exchanger serves as an evaporator, the refrigerant is made to be evaporated through the heat of indoor exhaust air, the evaporation pressure and the heating capacity of the unit are increased, the power consumption of the unit is reduced, and the frosting risk of the unit is avoided.

The invention relates to an internally-cooled solution dehumidifying fresh air handling unit driven by a heat pump, which is characterized by comprising a solution circulating system consisting of an internally-cooled dehumidifying module, an internally-thermal regeneration module and an evaporative cooling module, a heat pump system and an evaporative cooling water system, wherein the internally-cooled dehumidifying module is a fresh air channel; the internally-thermal regeneration module and the evaporative cooling module are arranged in parallel to form a regeneration air stream channel; the solution circulating system comprises an interstage solution circulation loop formed by connecting a dehumidifying sprinkler with a regeneration sprinkler through a solution circulating pump, and saline solution is filled into the interstage solution circulation loop; the heat pump system comprises a circulation loop performing heat exchange with solution and a circulation loop performing heat exchange with water, which are formed by connecting a dehumidifying heat exchange tube with a regeneration heat exchange tube and an evaporative cooling heat exchange tube in parallel through a compressor, and refrigeration working media are filled into the two circulation loops; and the evaporative cooling water system comprises a cooling water circulation loop formed by the evaporative cooling sprinkler through a water circulating pump. The internally-cooled solution dehumidifying fresh air handling unit can be widely applied on occasions where dry fresh air is needed to be supplied.

The invention discloses a solution-spraying type air-conditioner heat pump unit, belonging to the field of refrigerating air-conditioning equipment. The solution-spraying type air-conditioner heat pump unit is technically characterized in that with the adoption of the solution spraying, the unit diffuses condensation heat to the environment in summer and takes heat from the outdoor air environment in winter; and the solution is regenerated by the using of exhausted gas of the compressor or hot water manufactured by the unit. Compared with an air source heat pump unit, the solution-spraying type air-conditioner heat pump unit has the obvious characteristics that the refrigeration efficiency is high, the continuous heating operation can be realized without defrosting in winter and the heating efficiency is high, and in addition, the structure of the unit is compact and the early-investment of the equipment is low.

The invention relates to an all-year cold supply chiller with natural cooling function. A compressor, an air connecting pipe, a condenser, a liquid connecting pipe, a throttling gear and an evaporator form a steam compression type refrigeration circulation loop; the evaporator, the air connecting pipe, the condenser arranged on the evaporator and the liquid connecting pipe, which are all in the steam compression type refrigeration circulation loop form a cold medium natural circulation loop by opening a heat pipe air valve on a heat pipe branch and a heat pipe liquid valve connected in parallel with the throttling gear, and closing a refrigeration air valve on an air suction pipe of the compressor. The all-year cold supply chiller can adopt an integral structure or a split structure, keeps the function of making air conditioning cold water in summer, can sufficiently utilize the natural cold energy of outdoor air to make cold water in transition seasons and winter, provides cold water for all-year cold supply areas, such as inner zone of buildings and highly heating areas, and has the remarkable advantages of simple structure, high efficiency and energy saving.

This invention relates to an improved method for producing disperse red 60. The method comprises: bromizing and hydrolyzing 1-aminoanthraquinone in sulfuric acid medium to obtain 1-amino-2-bromo-4-hydroxylanthraquinone wet filter cake, condensing in the presence of phenol medium and acid-attaching agent, cooling to 95-100 deg.C at the condensation end-point, adding water, dropping alkali solution, cooling to 50-52 deg.C, filtering, washing, and drying to obtain 1-amino-2-bromo-4-hydroxylanthraquinone (disperse red 60). The method directly utilizes disperse red 60 wet filter cake to avoid the drying procedure, thus simplifying the operation, lowering the equipment investment, improving the operation conditions, and reducing the labor intensity. Besides, the method also increases product yield and quality, as well as reduces phenol amount.

The invention relates to a cold storage density improving method for the cold storage air conditioning system and a cold storage air conditioning system. The method of the invention adopts the technical proposal that during the cold discharging stage, under the state that the refrigerating unit is started, a part of high-temperature cooling water is taken as low-temperature cooling water to replace the water cooling system to be supplied to the condenser of the refrigerating unit; when the cold storage is required, the high-temperature cooling water is refrigerated and is changed into the low-temperature refrigerated water by the condenser of the refrigerating unit. The cold storage air conditioning system of the invention comprises a refrigerating unit, a cold storage equipment, a chilled water pump, an air conditioning unit, a cooling water system, one to a plurality of low-temperature cooling water circulating pipelines and two to a plurality of high-temperature refrigerated water refrigeration pipelines. The cold storage density improving method for the cold storage air conditioning system and the cold storage air conditioning system have the advantages that electric power consumption in the power consumption peak time can be more reduced, the operation cost can be reduced, and the cold storage density can be increased, thereby a positive effect can be taken on the peak load shifting of the electric network.

Disclosed is an apparatus that provides refrigerant based energy storage and cooling. When connected to a condensing unit, the system has the ability to store energy capacity during one time period and provide cooling from the stored energy during a second time period. The system requires minimal energy to operate during either time period, and only a fraction of the energy required to operate the system during the first time period is required to operate the system during the second time period using an optional refrigerant pump.

The invention discloses a pump-free organic Rankine cycle power generation system with compression refrigeration efficiency. The system comprises a supersonic steam-liquid two-phase flow jet pump, anevaporator, an expansion machine, an evaporation condenser, an expansion pressure reduction device, a cooler, a throttling valve, a compressor and a generator which are connected with one another to form an organic Rankine cycle and a steam compression refrigeration cycle. According to the pump-free organic Rankine cycle power generation system with the compression refrigeration efficiency, the supersonic steam-liquid two-phase flow jet pump is adopted to replace a working medium pump in a conventional system, the organic Rankine cycle is coupled with the steam compression refrigeration cyclethrough the evaporation condenser, cooling capacity is provided for the organic Rankine cycle through refrigerating capacity produced by the refrigeration cycle, and the condensation temperature of exhaust gas at an outlet of the expansion machine is reduced; and meanwhile, the expansion pressure reduction device is adopted to recycle pressure energy of the high-pressure liquid working medium in aloop in the steam compression refrigeration circulation, and the irreversible loss of the side throttling process of the refrigeration cycle is reduced.

The invention relates to a heat recovery solution dehumidifying fresh air handling unit, which is characterized by comprising a solution circulating system, a heat pump system and an evaporative cooling water system, wherein the solution circulating system comprises a two-stage total heat recovery module, a dehumidifying module and a regeneration module; the two-stage total heat recovery module is connected with a solution circulating pump to form a total heat recovery unit; the dehumidifying module is connected with the regeneration module to form an inter-stage solution circulation loop; the heat pump system comprises a heat pump circulation loop, which is comprised of a compressor, a first condenser, a throttle valve, an evaporator and a second condenser; the heat exchange end of the second condenser is connected with the corresponding regeneration module through the solution circulating pump to form a solution heating loop; the heat exchange end of the evaporator is connected with the corresponding dehumidifying module through the solution circulating pump to form a solution cooling loop; and the evaporative cooling water system comprises a water heating loop formed by communicating an evaporative cooling module with the heat exchange end of the first condenser through a water circulating pump. The heat recovery solution dehumidifying fresh air handling unit can be widely applied on occasions where dry fresh air is needed to be supplied.

The invention provides an integrated all-fresh air conditioner which comprises a housing, a fresh air inlet for introducing fresh air, electrical elements such as a compressor, etc., a condenser, an evaporator, a water tank, a pipeline system of all parts, a blower arranged at the rear part of the evaporator, an air outlet communicated with the blower, a return air inlet for absorbing indoor air, a condensate fan arranged at the rear part of the condenser, and an air outlet communicated with the condensing fan; wherein, a chemical filter and a fresh-air pre-cooled film are arranged at the front part of the evaporator, and a humidification film is arranged at the rear part of the evaporator, and a filter is arranged at the front part of the condenser. The integrated all-fresh air conditioner is designed into a whole body, and is condensed by the return air in an air conditioned room and the precooled fresh air, which can realize all-fresh-air effect while saving energy.

The invention provides an air conditioning system and a control method thereof. The air conditioning system comprises a compressor, a first indoor heat exchanger and a second indoor heat exchanger; the air conditioner further comprises a valve set structure, and through switching control of the valve set structure, in the refrigeration mode, the indoor first heat exchanger communicates with an airsuction port of the compressor, and the indoor second heat exchanger communicates with the air suction port of the compressor; in the heating mode, the indoor first heat exchanger communicates with an exhaust port of the compressor, and the indoor second heat exchanger communicates with the exhaust port of the compressor; in the reheating dehumidification mode, the indoor first heat exchanger communicates with the air suction port of the compressor, and the indoor second heat exchanger communicates with the exhaust port of the compressor; and air flow can sequentially flow through the indoorfirst heat exchanger and the indoor second heat exchanger to complete heat exchange. According to the air conditioning system, the leeward side heat exchanger can be converted into the reheating heatexchanger under the control of the valve when the air conditioning system operates in the dehumidification mode in the transition season, so that the air supply temperature when the air conditioning system operates in the dehumidification mode is increased, the condensation temperature is reduced, the supercooling degree of the outlet of a condenser is increased, and the system energy efficiency is improved.

The invention relates to the technical field of total heat recovery, in particular to a rotating wheel type total-heat-recovery fresh air unit which comprises a unit shell. The unit shell is provided with a fresh air inlet cavity, a recovery cavity, an air supply cavity, an air return cavity and an exhaust cavity. A primary filter and a medium-efficiency filter are sequentially arranged in the fresh air inlet cavity from outside to inside. An energy recovery rotating wheel is arranged in the recovery cavity. A second heat exchanger, a condensation heat recoverer, a humidifier and a blower are sequentially arranged in the air supply cavity from inside to outside. A compressor and a four-way reversing valve are sequentially arranged in the air return cavity from outside to inside. A first heat exchanger and an exhaust fan are arranged in the exhaust cavity. The rotating wheel type total-heat-recovery fresh air unit has the beneficial effects that fresh air and exhausted air are subjected to total heat recovery firstly through a rotating wheel heat recovery device, then an evaporator of a heat pump system is used for cooling and dehumidifying the fresh air, a condenser of the heat pump system is then used for carrying out proper heating treatment, and therefore the risk of moisture condensation caused by the too low air outlet temperature is avoided. In addition, the structure is simple, design is reasonable, and manufacturing cost is low.

The invention discloses a heat pump system utilizing solar energy-air energy. The heat pump system utilizing solar energy-air energy comprises a solar heat collecting unit, a solar absorption type heat pump unit and a compression type heat pump unit. A solar drive absorption type refrigerating cycle and a compression type heat pump cycle are used for forming a cascade cycle, the condensation temperature of a compression type heat pump unit is lowered, and the power consumption of a compressor is reduced; and the problem of system continuous refrigerating or heating under the condition of insufficient solar energy or the lack of solar energy is solved through an air source heat pump unit. According to the system, solar energy and other low-grade energy are efficiently utilized, and the system has the beneficial effects of being all-weather and ceaseless, stable and reliable in running, high in energy utilization rate and the like, and has wide application prospects.

The invention discloses a wearable air conditioning suit based on a bionic honeycomb structure. A throttling device of the wearable air conditioning suit is respectively connected with a condenser and an evaporator; a miniature compressor is respectively connected with the condenser and the evaporator; the evaporator is also connected with a miniature water pump and a honeycomb structural pipeline, and the miniature water pump is connected with the honeycomb structural pipeline through a small water storage tank; a lithium ion battery pack is connected with a controller; the throttling device adopts a capillary pipe with the diameter of 0.5-0.8mm; a wearing assembly is divided into a plurality of layers; a comfortable layer, a breathable layer, a heat insulation layer and a surface layer are sequentially arranged from inside to outside; the evaporator adopts a plate heat exchanger; a pipe network of a water cooling system is distributed in a net shape by using a honeycomb structure; the condenser adopts a parallel flow heat exchanger; and a small fan is parallel to the parallel flow heat exchanger. By using the wearable air conditioning suit, the temperature of a microenvironment in the suit is maintained within the range of +/-1.5 DEG C based on the temperature set by a user, and therefore, a comfortable microenvironment inside the suit is provided for a human body.

The invention discloses an efficient condenser which comprises a shell. A condensation heat exchange area and a supercooling area are formed in the shell from top to bottom through a plurality of heat exchange pipes and a supercooling pipe. The condensation heat exchange area is divided into an upper layer and a lower layer. The heat exchange pipes on the upper layer and the lower layer are separated by a fluid baffle penetrating through supporting plates. The whole fluid baffle tilts by 10-15 degrees towards one side in the width direction. The condensation heat exchange area and the supercooling area are separated by a supercooling area upper sealing plate covering the supercooling area. According to the efficient condenser, due to the fact that the fluid baffle is arranged between the upper layer and the lower layer of the condensation heat exchange area and the supercooling area upper sealing plate is arranged between the condensation heat exchange area and the supercooling area, the thickness of fluid films outside the heat exchange pipes below the fluid baffle is effectively reduced, the heat exchange performance of the supercooling area is enhanced, and the energy efficiency of a refrigeration system is obviously improved.