107results about How to "Improve the cooling factor" patented technology

The refrigerating device of the invention is used to improve the refrigerating capacity of the evaporator in the refrigerating device and improve the performance. The refrigerant flowing out of the heat radiator (105) is divided into two streams, and the first refrigerant stream flows into the first flow path of the intermediate heat exchanger (107) through the auxiliary expansion valve (109), and the second refrigerant stream After flowing through the second flow path of the intermediate heat exchanger, it flows into the evaporator (108) through the main expansion valve (106) as the main throttling device, and in the intermediate heat exchanger, the first refrigerant flow and the second refrigerant flow The refrigerant flow performs heat exchange, the refrigerant flowing out of the evaporator is sucked into the compression element on the low stage side (low pressure part of the compression device), and the above-mentioned first refrigerant flow flowing out from the intermediate heat exchanger is sucked into the compression element on the high stage side ( the middle pressure part of the compression device). The pressure of the intermediate pressure portion of the compression device is determined by controlling the auxiliary expansion valve as the auxiliary throttling device based on the suction pressure and discharge pressure of the compression device.

The invention discloses an injection type refrigerating machine with a middle heat exchanging part. The injection type refrigerating machine with the middle heat exchanging part comprises a first restricting element, an evaporator, a first ejector, a second ejector, a condenser, a second restricting element, a subcooler or an economizer, a circulating pump and a first generator, wherein a working fluid inlet of the first ejector and a working fluid inlet of the second ejector are communicated with a working medium outlet of the first generator, a driving fluid inlet of the first ejector is communicated with a working medium outlet of the evaporator, a working medium outlet of the first ejector is communicated with a driving fluid inlet of the second ejector, and a working medium outlet of the second ejector is communicated with a working medium inlet of the condenser. The injection type refrigerating machine with the middle heat exchanging part has the advantages that constraint of traditional thought is broken through; due to the fact that the middle heat exchanging part such as the economizer or the subcooler is adopted, gas phase working media of the economizer or the subcooler can directly enter the second ejector and do not need to be compressed again through the first ejector, then the load of the first ejector is reduced, and the refrigeration coefficient of a system is improved.

The invention provides a temperature and humidity independent control air conditioning unit based on absorption refrigeration. According to the unit, heat can be effectively dissipated by means of an absorption refrigerator absorber and a condenser, and concentration and regeneration of dilute solutions obtained by dehumidifying solutions are achieved. On the basis that cooling water and cooling air are provided through absorption refrigeration, temperature and humidity independent control of indoor air supply can be effectively achieved, and meanwhile refrigerating performance of an absorption refrigerator and quality of supplied air can be greatly improved compared with traditional cooling and dehumidification.

The invention discloses a high-efficiency ammonia-water absorption-type refrigeration device, which adopts an ejector to substitute the original dilute solution throttling device, adopts dilute solution from a solution heat exchanger as the work fluid of the ejector and adopts ammonia steam from an evaporator as the driving fluid; and the dilute solution and the ammonia steam are injected into an absorber after being mixed and pressurized inside the ejector. The ejector recycles the energy discharged during the depressurization process of the dilute solution to be used for improving the absorption pressure of the absorber, so under the condition that the cooling water temperature and the heat source temperature are equal to that of the conventional ammonia-water absorption refrigeration system, the refrigeration coefficient of the system is improved; and moreover, since the ammonia steam and the ammonia-water dilute solution are adequately mixed inside the ejector, the absorber is simplified to a simple cooler.

The invention discloses an air-conditioning device capable of realizing gradient utilization for waste heat of a ship. The air-conditioning device comprises a heat pump system, an organic Rankine cycle (ORC) system, a seawater cycle system, an air-conditioning terminal system, a smoke pipeline system, a motor, a power generator and a rotary shaft switcher. According to the air-conditioning device disclosed by the invention, a previous utilization manner for waste heat of a diesel engine of a ship is changed, and ORC and a heat pump technology are coupled to realize the gradient utilization for the waste heat, that is, high-temperature smoke drives the ORC system at first, then enters a single-stage waste heat boiler, and finally carries out heat exchange and heating; and a turbine of the ORC system drives a compressor and the power generator, and an effect of 'cold, heat and electricity' cogeneration is achieved. The ORC system, the heat pump system and the seawater cycle system are cooperated, and in a high-temperature environment, a condensation temperature of a refrigerant is lowered by deep low-temperature seawater, so that the problem of poor refrigeration performance of an air conditioner of the ship is solved; and in a low-temperature environment, an evaporation temperature of the refrigerant is raised through condensation heat of an organic working medium, so that the problem of poor heating performance of the air conditioner of the ship is solved. Utilization efficiency for the waste heat of the diesel engine is increased through the gradient utilization for the waste heat of the smoke, so that economical efficiency and energy conservation are achieved.

The invention discloses a dual-circulation fresh air dehumidifying and coil cooling type air conditioning unit which comprises a high-pressure compressor and a low-pressure compressor which are connected in series, and a second heat exchanger is connected between the input end of the high-pressure compressor and the output end of the low-pressure compressor; a four-way reversing valve is connected at the input end of the low-pressure compressor and further connected to a first heat exchanger, the output end of the high-pressure compressor and a third heat exchanger; the first heat exchanger is connected with two electronic expansion valves respectively, namely connected with the second heat exchanger by the first electronic expansion valve and with the third heat exchanger by the second electronic expansion valve; and the second heat exchanger is connected with a dry coil, and the third heat exchanger is connected with the fresh air unit. Dual-stage compression and air temperature and humidity of the air conditioning unit are respectively controlled, on one hand, dual circulation is utilized to improve the refrigeration coefficient of the refrigeration circulation; on the other hand, interior temperature is controlled by high-temperature cold water in the dry coil so as to prevent the interior of the dry coil from generating condensate water.

The invention discloses an evacuated solar energy steam heat collecting pipe, a steam heat collecting board and a steam hot water air conditioner which are composed of the evacuated solar energy steam heat collecting pipe. An open end of the evacuated solar energy steam heat collecting pipe provided with a double-layer jacket is provided with a sealing end cover, and on the sealing end cover a steam discharging port and an liquid intake pipe are provided; an inner cavity of an inner tube is provided with a core tube; a stenochasmus medium liquid membrane layer is formed between the core tube and the inner tube; the liquid intake pipe is serially connected to an adjuster for regulating the status of liquid feed. A plurality of the steam heat collecting pipes are arranged side by side on a framework provided with a reflecting board lined at the back and a transmitting board arranged in the front; the steam discharging ports are gathered to an exhaust manifold while the liquid intake pipes to a return liquid manifold; the exhaust manifold and the return liquid manifold are positioned for heat preservation in the framework with interfaces thereof exposed to form a heat collecting board generating steam. The exhaust manifold and the return liquid manifold of the steam heat collecting board are respectively connected with a water tank to form a steam-heating water heater/or connected with a condensation heat exchanger in a heat receiver to form the water heater or the heater of superconductive heat transmission through a steam transport pipe and a return liquid pipe. An absorption air conditioner is serially connected between the steam transport pipe and the return liquid pipe to form a steam-source solar energy air conditioner.

A dual-temperature radiation household air-conditioner capable of processing fresh air comprises a compressor, wherein an outlet of the compressor is connected with an inlet of a condenser. The outlet pipelines of the condenser are connected with a mental radiation plate and a guiding-type fresh air processor respectively by a first expansion valve and a second expansion valve through a heat regenerator, wherein both inlets of an ejector are respectively connected with the outlet of the mental radiation plate and the outlet of the guiding-type fresh air processor. The outlet pipelines of the ejector are connected with the inlet of the condenser through the heat regenerator. The dual-temperature radiation household air-conditioner is capable of increasing the inlet pressure of the condenser to enable a single condenser to achieve the cooling at two evaporating temperatures, wherein the evaporating temperature of the mental radiation plate which is used as an evaporator is relatively high, thereby being good for improving refrigeration coefficients to achieve the energy-saving effect, avoiding the problem of the secondary heat loss caused by using cold water as refrigerants of radiation air-conditioners, improving indoor air quality and expanding the range of application of air-conditioner systems with independent control of temperature and humidity.

The invention discloses a vacuum solar vapor heat-collecting tube, a vapor heat-collection plate formed by the vacuum solar vapor heat-collecting tube, and a vapor hot water air conditioner, which is characterized in that a sealing end cover is positioned at the open end of a common vacuum solar heat-collecting tube; a plurality of vapor exhaust ports, a plurality of liquid inlet tubes and a standby pipe are positioned on the sealing end cover; a homocentric core tube is positioned in the intracavity of the inner pipe; a liquid membrane gap is formed between the core tube and the inner pipe; the outlet of the liquid inlet tube is introduced into the liquid membrane gap; an adjusting valve, controlled by liquid level in the pipe or the temperature of inner pipe wall, is connected in series with the liquid inlet tube; a plurality of heat-collecting tubes are positioned in parallel in a frame; the back face of the frame is lined with a reflector; a light transmission plate is positioned on the front face of the frame; the vapor exhaust ports converge in a vapor exhaust header; the liquid inlet tube converges in a liquid return header; the vapor exhaust header and the liquid return header are positioned in the frame and simultaneously the heat is preserved; the interfaces of the headers expose to the outside, forming a vapor heat-collection plate; the vapor exhaust header and the liquid return header of the vapor heat-collection plate are connected with a through hole vapor absorber and a water outlet at the bottom part of a water tank by a vapor transportation pipe and a liquid return pipe, forming a water heater; an absorption-type air conditioner is connected in series with the vapor transportation pipe; a steam boiler is connected in parallel between the vapor transportation pipe and the liquid return pipe, forming the hot water air conditioner.

The invention discloses a membrane distillation heat recovery absorption type refrigeration device which relates to the refrigeration technology field, the membrane distillation heat recovery absorption type refrigeration device comprises a generator, a condenser, a throttling device, an evaporator, a refrigerant pump, an absorber, a solution pump and a solution heat exchanger; the membrane distillation heat recovery absorption type refrigeration device is characterized in that: a membrane distillation mass transfer heat exchanger is arranged between the generator and the solution heat exchanger, the membrane distillation mass transfer forms a certain steam pressure difference at the hot side and the cold side solutions of a membrane, thereby realizing the heat recovery process. The membrane distillation heat recovery absorption type refrigeration device of the invention has the advantages that: the requirements on the temperature of a drive heat source are greatly reduced; the refrigeration coefficient is greatly improved; the absorption type refrigeration device is simplified, and the manufacturing process is improved.

Solar energy belongs to refrigeration and building circumstance and equipment engineering technical field which includes solar energy collector, two activated carbon adsorption beds, condensing heat exchanger, throttle valve, evaporating heat exchanger, axial flow fan, padding, shell, spray header, air inlet, air outlet, exhaust pipe and twelve control valve, methyl alcohol steam desorpted by a adsorption bed which works using solar energy flows into the condensing heat exchanger6 is cooled by wet air, changed to liquid state methyl alcohol with low temperature, then enters the evaporating heat exchanger under gravity action cooled down through evaporating heat exchanger, liquid state methyl alcohol in the evaporating heat exchanger is evaporated with heat absorption through another 3adsorption bed, then cool the cooled water which has passed padding ulteriorly. The invention can improve refrigerating unit, raise coefficient of performance, reduce energy cost of refrigerating unit, plays significant role in energy saving of central air conditioning system and has notably social and economic benefit.

The invention relates to an improvement for air condition. It supplies a wall air condition. It could be installed in wall. It distributes compressor, condenser, heat emission fan, evaporator, cold supplying fan to an integration to form a narrow high shaped air condition, decrease occupying area. It is convenient to distribute in wall. The invention could be used in home and in business.

The invention relates to a refrigeration system. The refrigeration system comprises an evaporator, a condenser, a compressor and a U-shaped tube or a straight tube, wherein the mounting position of the condenser is higher than that of the evaporator; and the height H of the U-shaped tube or the depth H that the straight tube is inserted below the liquid level of a refrigerant in the evaporator accords with a formula of rho gH>p2-p1, wherein rho is the density of the refrigerant. For a condition that indoor temperature T1 is lower than outdoor temperature T2, the refrigeration system adopts Carnot reverse cycle; and for a condition that the indoor temperature T1 is higher than the outdoor temperature T2, the refrigeration system adopts Carnot cycle, p2<p1, at the moment, refrigerant steam pushes the compressor to idle, and the refrigerant in the U-shaped tube or the straight pipe completes constant entropy compression by means of self gravity without energy consumption, so that the energy consumption of the system is extremely low. The refrigeration system can use other liquid with the boiling point between 20 and 100 DEG C, such as methanol, ethanol and the like as the refrigerant.

The invention aims to reduce leakage of a freezing medium and restraining sliding resistance and improving the coefficient of performance (COP) at the same time in a rotary compressor. The rotary compressor (10) of the invention comprises a rotary compression factor (32), a cylinder (40), a roller (48), an upper part support part (54) and a lower part support part (56) of a bearing, wherein, the rotary compression factor is driven by a rotary shaft (16) of a driving factor (14); the rotary compression factor (32) is formed from the cylinder; the roller is arranged in the cylinder (40), and is tabled with an eccentric part (44) of the rotary shaft (16) to eccentrically rotate; the bearing is used for obturating the opening surface of the cylinder (40), and is provided with the rotary shaft (16). The ratio A/B is set at 30mm<2>/cm<3> to 60mm<2>/cm<3>, wherein, A is the contact area of the roller (48) contacting with the upper part support part (54) and the lower part support part (56); B is the removal capacity of the roller (48) and the rotary compression factor (32).

The invention provides a solution humidity-regulation air treatment system utilizing geothermal hot spring resources and a treatment method for performing dehumidification and humidification on indoor air. According to the solution humidity-regulation air treatment system, the geothermal hot spring resources are directly utilized as a heat source to achieve regeneration of a humidity regulating solution and accordingly conversion energy sources such as electric energy are avoided so as to achieve energy conservation and emission reduction; meanwhile humidity regulating treatment and temperature regulating treatment on treated air are separated from each other through structural optimization and accordingly refrigeration coefficients of a surface air cooler can be improved, the efficiency of the temperature regulating treatment and the humidity regulating treatment can be improved, the energy consumption of the surface air cooler can be reduced, and energy sources can be saved; dual functions of cooling dehumidification and warming humidification can be achieved and the solution humidity-regulation air treatment system can be suitable for summer and winter air conditioning just through simple conversion control and accordingly the problem that solution humidity-regulation air conditioning systems are single in function in the prior art is solved and the market application prospect of the solution humidity-regulation air treatment system is extended.

The invention discloses a jet type supercooling refrigeration system, and aims at providing a refrigeration system capable of obtaining a large degree of supercooling and low operation cost. The jet type supercooling refrigeration system comprises a main refrigeration cycle and a jet subcooling refrigeration cycle; the cooling heat of the high temperature gas of the compressor exhaust port in themain refrigeration cycle drives an injector in the jet subcooling refrigeration cycle. The refrigeration system can obtain a large degree of subcooling, and the high-pressure refrigerant liquid in a generator is heated by the cooling heat of the high-temperature gas of the compressor exhaust port, so that the jet supercooling cycle can use the waste heat effectively; without other energy input, the operation cost is reduced. Meanwhile, the refrigerant entering a main condenser has a lower temperature, the space occupied by the condenser is reduced, the cooling process is more sufficient, the energy efficiency of the system is improved effectively; and the service life of the compressor is prolonged.

The purpose of this invention is to decrease the leakage of refrigeration preparation in the revolving compressor, and restrain sliding resistance and increase refrigeration coefficient (COP). The revolving compressor of this invention (10) includes: the revolving axletree(16) of factors droved (14), revolving and compressing factors of the drive (32), the bicycle pump (40) of the revolving and compressing factors (32), the eccentric roller (48) set in the pump and tabling to the eccentric part of the revolving axletree, the ringent side of the obdurate pump (40) with the upper supporting parts (54) of the revolving axletree (16) and the lower supporting parts (56), the tangent acreage A of the roller (48) and the upper (54) and the lower supporting parts (56), the vent volume B of the revolving and compressing factors, the ratio of A and B (A/B) is 30 sq mm/cu cm to 60 sq mm/cu cm.

The invention relates to a defrosting-free air cooling and water cooling all-in-one machine air source heat pump. The defrosting-free air cooling and water cooling all-in-one machine air source heat pump is composed of an air heat exchange part and a heat transmission tail end part which are connected through a pipeline, and a circulating medium in the connecting pipeline is a refrigerant or a secondary refrigerant. The air heat exchange part is mainly composed of an exhaust fan, a spraying head, a fin heat exchanger, grid-shaped padding, a liquid storage tank, an automatic antifreezing liquid guiding and discharging pipe, a retaining liquid surface control switch and a spraying water pump. According to the heat transmission tail end part, when a low-power compressor system with a four-way valve is selected, the structure of the defrosting-free air cooling and water cooling all-in-one machine air source heat pump is the same with that of a common air source heat pump; and when a large-power compressor system without a four-way valve is selected, the structure of the defrosting-free air cooling and water cooling all-in-one machine air source heat pump is the same with the structure of a water source heat pump and a water cooling unit. According to the defrosting-free air cooling and water cooling all-in-one machine air source heat pump, defrosting is avoided during operation in winter, the refrigerating coefficient of operation in summer is the same with that of the water cooling unit, the high-power compressor system can be applied to the air source heat pump unit, and the high-power water cooling unit can be applied to the field of heating in winter.

The invention provides a secondary throttle pipe-in-pipe recooling device for an air conditioner. The secondary throttle pipe-in-pipe recooling device is connected with a primary throttling device on a refrigeration loop of the air conditioner and comprises a secondary throttle heat exchanger, a throttling piece and a gas-liquid separator; the secondary throttle heat exchanger comprises a first red copper pipe, a second red copper pipe, a third red copper pipe and a fourth red copper pipe which are connected with one another through welding; the third red copper pipe is communicated with the first red copper pipe and the second red copper pipe; an opening end of the fourth red copper pipe penetrates through the first red copper pipe and the second red copper pipe respectively; an access port of the first red copper pipe and an access port of the fourth red copper pipe are connected with each other in parallel through the throttling piece and are connected with a condenser; and an access port of the second red copper pipe and an access port of the fourth red copper pipe are connected with each other in parallel through the throttling piece and are connected with an evaporator. In the invention, a part of throttled low-temperature saturated liquid is used to reduce an enthalpy value of the liquid output from the condenser and increase the enthalpy value of the low-temperature evaporation liquid; the heat exchange area of the condenser is reduced; and reliability of the system and performance coefficient of the air conditioner are improved.

The invention relates to single-stage integrated drying equipment which is characterized by comprising a box body (10), a drying unit (60) and a heat pump device (80), wherein the box body (10) comprises a baking oven cover (20) and a base (50); a drying cavity (13) and a recovering cavity (14) which are mutually communicated are arranged in the baking oven cover (20), and a gas passage with internal circulation drying is formed; the drying unit comprises a blower (30) and is provided with an air inlet passage (63), an air exhaust passage (64) and an air outlet passage (68); the heat pump device (80) comprises a heat pump compressor (89), a heat pump throttling valve (87), a heat pump condenser (88) and a refrigeration evaporator (96); and the heat pump compressor (89), the heat pump condenser (88), the heat pump throttling valve (87) and the refrigeration evaporator (96) are sequentially connected to form an end-to-end circulation structure. The invention is widely suitable for processing equipment to dry thin belt-shaped objects which move continuously, and has the advantages of small volume and no discharge of waste gas, very obvious social benefit and economic benefit, and energy is saved by more than 60%.