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40results about How to "Lower the inlet water temperature" patented technology
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Quick heating type heat pump water heater for recovering shower waste heat
ActiveCN102607170AShorten the timeIncrease power and efficiencyFluid heatersHeat pumpsEvaporatorHeat pump water heater
A quick heating type heat pump water heater for recovering shower waste heat is composed of a condenser, an evaporator, a throttling device, a compressor, a heat regenerator, a preheater, a primary water tank, an auxiliary water tank, a water mixing controller, a spraying device and a valve. The heat regenerator and the evaporator are installed under the feet of a shower person, the spraying device is arranged above the head and communicated with the water mixing controller, the preheater is arranged in the auxiliary water tank, the condenser is arranged in the primary water tank, the water outlet end of the auxiliary water tank is connected with an inlet of the water mixing controller, and the water inlet end of the auxiliary water tank is connected with a water outlet pipe of the primary water tank. One end of the valve is connected with tap water, the other end of the valve is respectively connected with a water inlet pipe of the primary water tank and a water inlet pipe of the heat regenerator, and the water outlet end of the heat regenerator is communicated with the water mixing controller. The condenser, the throttling device, the evaporator and the compressor form a closed loop, an outlet of the condenser is connected with an inlet of the throttling device, an outlet of the throttling device is connected with an inlet of the evaporator, an outlet of the evaporator is connected with an inlet of the compressor, and an outlet of the compressor is connected with an inlet of the condenser.
Owner:佛山市三角洲电器科技有限公司 +1
Directly-heated type double-source heat pump water heater and control method thereof
ActiveCN104101106AAvoid high voltage protectionLower the inlet water temperatureFluid heatersSolar thermal collectorHeat pump water heater
The invention discloses a directly-heated type double-source heat pump water heater and a control method thereof, and relates to a fluid heater provided with a solar heat collector and utilizing a heat pump and a control method of the fluid heater. The directly-heated type double-source heat pump water heater comprises a directly-heated type variable-frequency heat pump, a solar water heater, a heat storing water tank, water-supplementing flow regulating element and a control device, heat collecting tubes of the solar water heater are of lower-end water inflow and high-end water outflow structures, a cold water supplying pipeline is connected to the directly-heated type variable-frequency heat pump through the water-supplementing flow regulating element, a hot water outlet of the directly-heated type variable-frequency heat pump is connected to the solar water heater, and a water outlet pipeline of the solar water heater is connected to the heat storing water tank. The control device detects water outflow temperature of the solar water heater, changes temperature control strategies according to the water outflow temperature and adapts to different sunlight intensity by changing operation frequency of the directly-heated type variable-frequency heat pump or changing water supplementing speed of the water-supplementing flow regulating element, so that hot water supply requirements can be met while compressor power is reduced, equipment utilization rate is increased, and early investment cost is lowered.
Owner:JIANGSU TENESUN ELECTRICAL APPLIANCE
Heat filler type deaerator with stable deaerating function and atomizing function
InactiveCN103292311AConstant and reliable water levelEnsure water qualityLiquid degasificationBlowoff valveDifferential pressure
The invention discloses a heat filler type deaerator with a stable deaerating function and an atomizing function. The heat filler type deaerator is characterized in that a heat-side inlet of an exhaust heat exchanger is communicated with a blowoff valve through a pipeline, a cold-side inlet of the exhaust heat exchanger is communicated with a deaerator water supply pipe, a cold-side water outlet of the exhaust heat exchanger is communicated with a deaerator water supply inlet through a pipeline, a heat-side inlet of a water outlet heat exchanger is communicated with a deaerator water outlet, a boiler water supply pump is connected to a heat-side outlet pipeline, a cold-side water inlet of the water outlet heat exchanger is communicated with the deaerator water supply pipe, a water supply pump is arranged on the deaerator water supply pipe, a differential pressure transmitter is arranged in a deaerator water tank, detected water level signals in the deaerator water tank are transmitted to a controller through the differential pressure transmitter, the controller transmits signals to a frequency converter, the frequency converter controls rotation speed of the water pump to adjust water supply, a pressure control gauge transmits pressure signals to the controller which controls opening of preheating pipeline electromagnetic valves, a temperature sensor transmits temperature signals to the controller, and then the controller controls opening of reheating steam electromagnetic valves.
Owner:JIHUA 3539 SHOE MAKING
Method of obtaining low-approach cooling water by utilizing cooling tower
InactiveCN103216912ALower the inlet water temperatureReduce the temperature difference between inlet and outletSpace heating and ventilation safety systemsLighting and heating apparatusCooling towerEngineering
The invention discloses a method of obtaining low-approach cooling water by utilizing a cooling tower. A bypass branch passage with a flow regulating valve is connected with a circulating cooling water passage of a condenser of a refrigerating unit in parallel, water from the cooling tower is pressurized by a cooling circulating pump and then is divided into two paths, the water in one path flows through the branch passage of the condenser of the refrigerating unit, and the water in the other path flows through the bypass branch passage. The cooling water from the condenser of the refrigerating unit and the cooling water from of the bypass branch passage are mixed and then enter the cooling tower for circulating cooling. A flow G1 flowing through the branch passage of the refrigerating unit is required to be determined according to a designed cooling load of a refrigerating system, a flow G2 of the bypass branch passage is determined through calculation according to an approach required by circulating cooling water, and the flow of the cooling tower is determined according to the flow G1 of the branch passage of the refrigerating unit and the flow G2 of the bypass branch passage. Through technological improvement, the method obtains the low-approach cooling water by utilizing the cooling tower, and safe operation of the refrigerating system is not affected.
Owner:HENAN POLYTECHNIC UNIV
Water tank and water-cooling fan with same
InactiveCN106091199ALower the inlet water temperatureImprove cooling effectLighting and heating apparatusSpace heating and ventilation detailsCooling effectWater level
The embodiment of the invention discloses a water tank which comprises a water tank body. The water tank body is provided with at least two tank bodies. Any two adjacent tank bodies communicate through an opening. At least one tank body is a water inlet tank body. At least the other tank body is water return tank body. The opening is higher than the lowest water level of the water return tank body. The water tank is divided into the at least two tank bodies, so that the problem that in the prior art, hot water and cold water are mixed in a water tank is solved. Only water in the water inlet tank body needs to be cooled, and water in the whole water tank does not need to be cooled, so that the cooling speed is higher, the water inlet temperature of the water-cooling fan can be enabled to be always in the lower condition, and the cooling effect of the water-cooling fan is improved. The invention further discloses the water-cooling fan.
Owner:GREE ELECTRIC APPLIANCES INC
Cooling system and method of engine
ActiveCN107044332AReduced heat dissipation requirementsReduce volumeLiquid coolingInternal combustion piston enginesCombustionNuclear engineering
The invention provides a cooling system and method of an internal combustion engine, in particular to a cooling system and method of a marine diesel engine. Double heat exchangers are adopted and arranged in a high temperature branch and a low temperature branch correspondingly, internal cooling liquid are divided into a first internal cooling liquid branch and a second internal cooling liquid branch after being heated by an engine body, and the first internal cooling liquid branch comprises a first thermostat, the vice heat exchanger and a high temperature stage intercooler; the second internal cooling liquid branch comprises a second thermostat, the main heat exchanger and a lower temperature stage intercooler; and internal cooling liquid passing through the first internal cooling liquid branch and the second internal cooling liquid branch are converged and then returns to the engine body to form a closed cooling loop. According to the cooling system, size requirement of a whole engine is met, cooling system cost is lowered, the reliability of the cooling system is improved, and the combustion condition of the engine is improved.
Owner:WEICHAI POWER CO LTD
Circulating water cooling system and technical flow thereof
InactiveCN103398523AReduce the temperatureMeet the needs of useLighting and heating apparatusCooling fluid circulationWater dischargeFuel oil
The invention discloses a circulating water cooling system which is applied to water-cooled production equipment. The circulating water cooling system comprises a circulating water tank, a condenser of production equipment and a circulating water cooling device, which are sequentially and cyclically communicated with one another through pipelines, wherein circulating water cyclically flows in the circulating water tank, the condenser of the production equipment and the circulating water cooling device. The invention also discloses a technical flow of the circulating water cooling system. The technical flow comprises the following steps that A, water discharged by the circulating water tank enters the condenser of the production equipment; B, the water discharged by the condenser of the production equipment enters the circulating water cooling device; C, the water discharged by the circulating water cooling device reenters the circulating water tank, and the steps are repeated. According to the circulating water cooling system and the technical flow thereof which are disclosed by the invention, the productivity of the equipment can be improved, fuel oil can be saved, and the consumed energy such as water can be supplemented; therefore, the production cost of capital is greatly reduced.
Owner:DIHON PHARMA GROUP
Synergized heat supply device with CO2 air source heat pump
PendingCN107676845AIncrease heatRaise the water temperatureHeating fuelRefrigeration componentsInlet temperatureEvaporator
The invention discloses a synergized heat supply device with a CO2 air source heat pump. The device mainly comprises a first compressor, a heat regenerator, a gas cooler, an evaporator, a heat exchanger, a condenser, a second compressor and a central processing unit. The heat exchanger, the condenser, the second compressor and a second throttle valve form a simple and easy heat pump nested in a system. According to the synergized heat supply device with the CO2 air source heat pump provided by the invention, an operating principle of a CO2 air source heat pump system is changed, and the central processing unit and the simple and easy heat pump are additionally arranged in the CO2 air source heat pump system, so that the water inlet temperature of the gas cooler of a CO2 air source heat pump in the heat supply device is effectively reduced; and the central processing unit releases heat of collected water into a CO2 refrigerant system, so that the heat of the CO2 refrigerant system is improved, and the temperature of water in a water supply pipeline of heating equipment is improved. The central processing unit and the simple and easy heat pump are combined, so that the comprehensiveenergy efficiency ratio of the CO2 air source heat pump is greatly improved, and the technical problem that a traditional CO2 air source heat pump cannot operate cyclically in heat radiator concentrated heating is solved.
Owner:何铭
Solar water heating device and control method thereof
PendingCN111536573AImprove hot water efficiencyLower the inlet water temperatureSolar heating energyFluid heatersThermodynamicsCollector device
The invention provides a solar water heating device and a control method thereof. The solar water heating device comprises the following components, namely, a heat collecting module, a heat supply module and a controller, the heat collecting module comprises a solar heat collector with a heat collecting water outlet and a heat collecting water inlet, a heating water tank and an air source heat pump, the heat supply module comprises a heat supply water tank and a heat supply water pipe, the controller is connected with the heat collecting module and the heat supply module, the solar heat collector communicates with the heating water tank and the heat supply water tank through a first heat collecting upper circulating pipe, a second heat collecting upper circulating pipe, a first heat collecting lower circulating pipe and a second heat collecting lower circulating pipe correspondingly, the bottom of the heating water tank communicates with the bottom of the heat supply water tank througha second water mixing pipe, the top of the heating water tank communicates with the top of the heat supply water tank through a first water mixing pipe, the bottom of the heating water tank communicates with the heat supply water pipe through a water return pipe communicating with a first cold water supplementing pipe, a water inlet pipe of the air source heat pump communicates with the bottom ofthe heating water tank. The provided solar water heating device can effectively improve the energy utilization rate and prevent overheating.
Owner:ZHUHAI SINGYES RENEWABLE ENERGY TECH +4
System capable of improving cooling effect of cooling tower by means of reducing moisture content of air
InactiveCN102519299AImprove efficiencyLower the inlet water temperatureDispersed particle separationBy chemical separationCooling towerVapor–liquid separator
The invention relates to a system capable of improving a cooling effect of a cooling tower by means of reducing moisture content of air, which is characterized by comprising a cooling water subsystem of a power plant, a CO2 capturing subsystem and a liquor dehumidifying subsystem. The cooling water subsystem of the power plant and the CO2 capturing subsystem are integrated by the aid of the liquor dehumidifying subsystem, the cooling water subsystem of the power plant consists of the cooling tower (18), the CO2 capturing subsystem comprises an absorption tower (1), a rich liquor pump (7), a barren liquor heat exchanger (8), a reboiler (9), a barren liquor cooling heat exchanger (19) and a regeneration gas water cooler (20), and the liquor dehumidifying subsystem consists of a dehumidifierinlet fan (10). By the aid of the system, vacuum degree of a condenser is increased, power generation efficiency is improved, coal consumption is reduced, and influence of the CO2 capturing subsystemto efficiency of the power plant is reduced.
Owner:SOUTHEAST UNIV
Air source heat pump double-water-tank hot water system and control method thereof
The invention relates to an air source heat pump double-water-tank hot water system and a control method. The air source heat pump double-water-tank hot water system comprises a variable-frequency water supply pump, a hot water tank, a warm water tank and a parallel host which are connected in sequence, and further comprises a water return valve and a water replenishing valve which are connected with the warm water tank; the hot water tank, the warm water tank and the parallel host are sequentially connected to form host-water tank circulation; the warm water tank, the hot water tank, the variable-frequency water supply pump and the water return valve are sequentially connected to form water tank-tail end circulation; and the parallel host comprises a plurality of parallel branches which are independently controlled or not independently controlled, and different heat supply modes are achieved by opening a specific number of parallel branches, so that different tail end load requirements are met. Compared with the prior art, the double-water-tank scheme is adopted, so that the mixing loss among return water, replenished water and hot water is reduced; and meanwhile, the water inlet temperature and the water outlet temperature of the heat pump are reduced, the condensation temperature of the heat pump can be well reduced, and the energy efficiency of the heat pump unit is improved while water consumption of a user is guaranteed.
Owner:TONGJI UNIV
Water-cooling type container data center using underground water to assist refrigerating
InactiveCN107690264ALower the inlet water temperatureReduce workloadCooling/ventilation/heating modificationsData centerWater flow
The invention relates to a water-cooling type container data center using underground water to assist refrigerating. The water-cooling type container data center is characterized by comprising an outdoor box body of the container data center, an outdoor water chilling unit and a heat exchanger buried underground, wherein a water-cooling type air conditioner terminal and a server cabinet are arranged in the box body; the water-cooling type air conditioner terminal is respectively connected with the water chilling unit and the heat exchanger buried underground; the heat exchanger is connected with the water chilling unit. The water-cooling type container data center has the advantages that by leading natural cold source of underground water, the water intake temperature of the outdoor waterchilling unit is reduced, namely that the temperature difference of cooling water flow of the water chilling unit is reduced, the working load of the water chilling unit is reduced, and the power consumption of the whole system is decreased.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
Back pressure turbine vacuum deaerator system and condensation water circulation method
ActiveCN105910092AHigh thermal efficiencySave resourcesLiquid degasificationEngineeringWater circulation
Provided are a back pressure turbine vacuum deaerator system and a condensation water circulation method. The system mainly comprises: a vacuum deaerator, a condensate pump, a deironing filter, a shaft-sealing condenser, and a vacuum pump. A low-pressure steam source is used as deoxidized steam and is connected with one end of an electric check valve, and the other end converges into a path and is connected with an electric control valve. The other end of the electric control valve is connected with a check valve. The other end of the check valve is connected with a vacuum stop valve. The vacuum stop valve is connected with the deoxidizing connector of the vacuum deaerator. One end of a vacuum electric valve is connected with the condensed water outlet of the vacuum deaerator, and the other end is connected with the inlet side of the condensate pump. One end of the check valve is connected with the outlet side of the condensate pump, and the other end is connected with an electric sluice valve. The other end of the electric sluice valve is connected with a deironing filter. One end of an electric cut-off valve is connected with a bypass electric cut-off valve, and the other end is connected with the inlet of the shaft-sealing condenser. One end of the electric cut-off valve is connected with the outlet of the shaft-sealing condenser, and the other end is connected with one end of the bypass electric cut-off valve.
Owner:ZHEJIANG ELECTRIC POWER DESIGN INST +1
Spiral type cooling cavity of pump
InactiveCN102086890ARelieve pressureImprove working conditionsPump componentsPumpsEngineeringMechanical engineering
The invention relates to a spiral type cooling cavity of a pump, belonging to the field of cooling cavities and solving the problem that the heat exchange conductivity of a cooling cavity of the traditional pump is limited to influence the service life of a mechanical sealing part of the traditional pump. The spiral type cooling cavity provided by the invention is arranged on a pump cover of a pump and comprises a spiral type sealing cavity and the pump cover, wherein the a spiral type sealing cavity comprises a cavity bottom and a concentric spiral groove body which is integrally formed at the cavity bottom; a single-spiral cooling water channel is formed by welding the cavity bottom and the outer surface of the concentric spiral groove body with the pump cover and is internally provided with a cylindrical through hole; and one end of the single-spiral cooling water channel is connected with a cooling water inlet, and the other end is connected with a cooling water outlet. Compared with the traditional cooling cavity, the spiral type cooling cavity has a cooling length lengthened by approximately 8 times and a cooling area enlarged by approximately 2 times, thereby the conditions for the operating condition of the mechanical sealing part of the pump are improved; and in addition, the spiral type cooling cavity can also achieve the purpose of heat exchange, without being additionally provided with auxiliary measures, even when the temperature of a hot fluid medium inside the pump exceeds 250 DEG C, thereby the operating cost is reduced.
Owner:KSB SHANGHAI PUMP
Preassembled type primary and secondary ring assembly and system applied to floor heating hydraulic system
InactiveCN103499119ASimple structureEasy to installLighting and heating apparatusSpace heating and ventilation detailsRing circuitDifferential pressure
The invention relates to the technical field of floor heating, in particular to a preassembled type primary and secondary ring assembly and system applied to a floor heating hydraulic system. The assembly comprises a primary ring and a secondary ring. The primary ring is composed of an air separator, a front pipeline and a rear pipeline, wherein the two pipelines are connected with the air separator. The secondary ring comprises a water inlet circuit, a water outlet circuit and a circulating pump. The preassembled type primary and secondary ring assembly and system are characterized in that the water inlet circuit and the water outlet circuit of the secondary ring are connected with the pipelines of the primary ring through two tee valves, and the center distance between the two tee valves is four times no larger than the diameter of each pipeline of the primary ring. Hydraulic separation is achieved through loops which are mutually connected and provided with a pair of tee joints, and the distance between two tee joint centers is four times no larger than the diameter of each pipeline of the primary ring circuit. The two tee joints are close as much as possible, so that the differential pressure between the starting point and the terminal point of the secondary circuit is reduced and close to zero. The preassembled type primary and secondary ring assembly and system applied to the floor heating hydraulic system can greatly reduce energy consumption.
Owner:陈康生
Engine cooling system and method
ActiveCN107044332BReduced heat dissipation requirementsReduce volumeLiquid coolingInternal combustion piston enginesPlate heat exchangerCombustion
Owner:WEICHAI POWER CO LTD
Platinum channel water cooling device
PendingCN112479562AImprove cooling effectDamage reductionGlass furnace apparatusSurface coolingRED MATERIAL
The invention discloses a platinum channel water cooling device which comprises a platinum channel and a channel brick wrapping the periphery of the platinum channel, wherein a cooling box is fixed tothe upper end of the channel brick through an installation fixing frame, and a water inlet structure is connected to the upper end of the cooling box. According to the invention, cooling water is continuously introduced into the top surface cooling box and the side surface cooling box through the water inlet structure and then is discharged through a Y-shaped water outlet pipe, so that the top surface and the side surface of the channel brick can be cooled, and the phenomenon of red material leakage caused by thinning of the channel brick due to high temperature is avoided.
Owner:彩虹(合肥)液晶玻璃有限公司
Brackish water supplement circulating and cooling system utilizing forward osmosis technology
ActiveCN106277193AImprove water qualityImprove stabilitySemi-permeable membranesSeawater treatmentCooling towerBrackish water
The invention discloses a brackish water supplement circulating and cooling system utilizing a forward osmosis technology. The system comprises a cooling tower, a technology heat exchanger, a waste heat recovery heat exchanger, a brackish water automatic chemical feeding device, a forward osmosis device, a pretreatment device, a brackish water feeding pump, a circulating water pump, a drawing agent supplement device and a filtering device, and a water pool below the cooling tower is connected with the drawing agent supplement device, the circulating water pump, a circulating and cooling water pipeline, the waste heat recovery heat exchanger and the technology heat exchanger through pipelines. An outlet of the brackish water feeding pump is connected with the pretreatment device, the technology heat exchanger and the forward osmosis device through pipelines. The system treats the brackish water for water supplement of the circulating and cooling system, and solves the running problems that the water quality of brackish water at various regions is different and unstable, it is only needed to add a necessary corrosion inhibitor and necessary biocide, and therefore the cost for usage of chemicals of a traditional system is lowered; heat in circulating water is fully utilized, and the efficiency of a forward osmosis system is improved; the water inlet temperature of the circulating cooling tower is decreased, and initial investment for the cooling tower is reduced.
Owner:天津市中海水处理科技有限公司
Apparatus and method for comprehensive utilization of thermal energy in chlorine dioxide pulp bleaching
ActiveCN107604730ARealize heat exchangeReduce cooling capacityPulp bleachingThermal energyChlorine dioxide
The invention discloses an apparatus and a method for comprehensive utilization of thermal energy in chlorine dioxide pulp bleaching. Heat exchange is carried out between normal temperature process water, which is used for producing ice water, and a low-temperature chlorine dioxide water solution, which is about to be added to pulp, so that after the heat exchange, temperature of the chlorine dioxide water solution is increased; then the chlorine dioxide water solution is mixed with the pulp, so that usage amount of steam for heating the pulp is reduced; furthermore, after the temperature of the process water is reduced after the heat exchange, the process water is sent to an ice water machine to produce ice water, so that the refrigerating load is reduced since the water inlet temperatureis reduced, thus saving energy.
Owner:GUANGXI BOSSCO ENVIRONMENTAL PROTECTION TECH
CO2 heat pump system and method for improving thermal performance
InactiveCN107860050ALower the inlet water temperatureLarge temperature differenceMechanical apparatusHeat pumpsPlate heat exchangerProcess engineering
The invention relates to a CO2 heat pump system and a method for improving thermal performance, and belongs to the field of heating and ventilation. The system comprises a gas cooler and a plate heatexchanger. The plate heat exchanger comprises a first inlet, a second inlet, a first outlet and a second outlet. The gas cooler comprises a third inlet, a fourth inlet, a third outlet and a fourth outlet. The first inlet communicates with high-temperature return water. The first outlet is connected with an inlet of a three-way valve through a circulating water pump. The first outlet is provided with a temperature measuring device. One outlet of the three-way valve is connected with the third inlet. The third outlet is connected with the second inlet. The second outlet discharges hot water. Thefourth inlet and the fourth outlet are sequentially connected with a condensing agent outlet and a condensing agent inlet. The other outlet of the three-way valve and the third inlet are sequentiallyconnected with an auxiliary refrigerating fluid inlet and an auxiliary refrigerating fluid outlet. According to the CO2 heat pump system and the method for improving the thermal performance, the temperature of the return water is reduced, the temperature difference of the two sides of the gas cooler is increased, the frosting time interval is prolonged, and the system performance is overall improved.
Owner:昆明东启科技股份有限公司
Air Humidification Solution Moisture Absorbing Solar Energy Fresh Water Preparation Device and Using Method
ActiveCN103073083BGet fastMore fresh water productionSolar heating energyGeneral water supply conservationAir cycleHigh energy
The invention discloses an air-moistening and solution-moisture-absorption solar fresh water production device and a use method thereof. The device comprises a sea water circulation system, an air circulation system, a solution circulation system and a vapor circulation condensation system, and mainly comprises an evaporation moistener, a solution moisture absorber, an evaporator and a condenser, so that a process that moisture is transferred to air from sea water, the moisture in the air is retransferred to a moisture absorption solution, and then fresh water extraction is conducted from the moisture absorption solution is achieved. The whole device effectively utilizes low-level heat sources such as solar energy, industrial exhaust heat or living waste heat, has a small dependence degree on electric energy, has the characteristics of high sea water production speed, larger production quantity, compact equipment, low cost, high energy utilization efficiency and the like, and is suitable for areas and occasions short of large sea water desalting equipment establishment conditions, such as unwatered islands, power-insufficient coastal non-urban areas, inland remote brackish water areas, and marine ocean transport.
Owner:东南大学常州研究院
A transcritical CO with precooler 2 Heat pump system and water circuit two-way valve control method
ActiveCN109323477BGuaranteed heating capacityGuarantee normal performanceMechanical apparatusHeat pumpsProgrammable logic controllerEngineering
The invention discloses a transcritical CO based on a precooler 2 The heat pump system and the waterway two-way valve control method, the conventional transcritical CO 2 The heat pump system is assisted by a pre-cooler system; the circulating water circuit is divided into two parts in the system through the three-way water diversion valve and the three-way water collection valve, and connected by the two-way water channel regulating valve and the water channel bypass valve; The ambient temperature sensor, evaporator fin temperature sensor and evaporation pressure sensor are used, and the programmable logic controller is used as the core of acquisition, calculation and control. Through the above system configuration and a well-developed joint control method of temperature, pressure and time, transcritical CO 2 The promotion of heat pump systems to the heating field can make up for the impact of high return water temperature on transcritical CO 2 System performance degradation, proper control of units entering and exiting defrost, and addressing transcritical CO 2 The heat pump system stops heating during a relatively long defrosting time, and the average temperature of the circulating water system drops rapidly.
Owner:XI AN JIAOTONG UNIV
Intelligent control type heat exchange unit
ActiveCN111425913ALower the inlet water temperatureExtended service lifeSpace heating and ventilation detailsHeat exchange apparatusPlate heat exchangerCirculator pump
The invention discloses an intelligent control type heat exchange unit. The intelligent control type heat exchange unit is composed of a heat exchange unit and a PLC control cabinet used for the wholemachine control; the heat exchange unit includes a primary network circulating pipeline and a secondary network circulating pipeline with a data acquisition device connected with a plate heat exchanger; the data acquisition device is in communication connection with the PLC control cabinet; a secondary network return water pipeline of the water outlet side of a secondary network circulating pumpgroup is connected with a secondary network water supplementing pipeline with a secondary network water supplementing pump group and a first water supplementing valve; a secondary water supplementingpipeline of the water inlet side of the secondary network water supplementing pump group is connected with a water supplementing box; a primary network water supply pipeline is connected with the secondary network water supplementing pipeline of the water outlet side of the secondary network water supplementing pump group through a primary network water supply branch pipe with a two-way pump and asecond water supplementing valve; and the primary network water supply branch pipe is connected with the water supplementing box through a bypass pipe with a bypass valve. According to the intelligent control type heat exchange unit, the heat exchange efficiency is high, and the service life of the equipment is prolonged.
Owner:山东九泽换热系统有限公司
A level heating domestic hot water storage and supply system and its control method
ActiveCN103925638BConducive to cascading utilizationLower the inlet water temperatureLighting and heating apparatusSpace heating and ventilation detailsAutomatic controlEngineering
Owner:广东申菱热储科技有限公司
Method of Obtaining Cooling Water with Low Cooling Radius by Using Cooling Tower
InactiveCN103216912BLower the inlet water temperatureReduce the temperature difference between inlet and outletSpace heating and ventilation safety systemsLighting and heating apparatusCooling towerEngineering
Owner:HENAN POLYTECHNIC UNIV
Efficient transcritical carbon dioxide refrigerating system
ActiveCN114061164AIncrease the cooling capacity per unit massReduce cooling loadCompressorMechanical apparatusCooling towerEnvironmental engineering
The invention discloses an efficient transcritical carbon dioxide refrigerating system which comprises a water inlet assembly. The water inlet assembly comprises a first water inlet pipe, a second water inlet pipe, a second condenser and a second evaporator. The second water inlet pipe extends out of the first water inlet pipe. The second condenser is arranged on the first water inlet pipe. The second evaporator is arranged on the second water inlet pipe. a gas cooler is arranged at one end, far away from the second evaporator, of the second water inlet pipe; the far ends of the first water inlet pipe and the second water inlet pipe are connected to a water outlet pipe; the system also comprises a compression assembly comprises an oil component, a flash tank connected with the oil component and a first low-pressure-stage compressor connected with the water outlet end of the flash tank; a heat regeneration assembly arranged between the flash tank and the first low-pressure-stage compressor. The water inlet temperature of cooling water is reduced through the second evaporator, the water temperature of an outlet of a cooling tower is reduced to 15-20 DEG C from 25-35 DEG C, the water temperature entering a gas cooler is reduced, the temperature of CO2 at an outlet of the gas cooler is reduced to 20-25 DEG C, and the temperature of CO2 at an outlet of the gas cooler is reduced to 20-25 DEG C; and the refrigerating capacity per unit mass of the first evaporator is increased.
Owner:南京久鼎环境科技股份有限公司
Quick heating type heat pump water heater for recovering shower waste heat
ActiveCN102607170BSolve the problem of heat sourceIncrease powerFluid heatersHeat pumpsClosed loopEngineering
A quick heating type heat pump water heater for recovering shower waste heat is composed of a condenser, an evaporator, a throttling device, a compressor, a heat regenerator, a preheater, a primary water tank, an auxiliary water tank, a water mixing controller, a spraying device and a valve. The heat regenerator and the evaporator are installed under the feet of a shower person, the spraying device is arranged above the head and communicated with the water mixing controller, the preheater is arranged in the auxiliary water tank, the condenser is arranged in the primary water tank, the water outlet end of the auxiliary water tank is connected with an inlet of the water mixing controller, and the water inlet end of the auxiliary water tank is connected with a water outlet pipe of the primary water tank. One end of the valve is connected with tap water, the other end of the valve is respectively connected with a water inlet pipe of the primary water tank and a water inlet pipe of the heat regenerator, and the water outlet end of the heat regenerator is communicated with the water mixing controller. The condenser, the throttling device, the evaporator and the compressor form a closed loop, an outlet of the condenser is connected with an inlet of the throttling device, an outlet of the throttling device is connected with an inlet of the evaporator, an outlet of the evaporator is connected with an inlet of the compressor, and an outlet of the compressor is connected with an inlet of the condenser.
Owner:FOSHAN CITY SANJIAOZHOU ELECTRICAL TECH CO LTD +1
Driving motor cooling system with defrosting function and application method
InactiveCN107776386AAvoid excessive water temperaturePrevent defroster inlet water temperature from being too lowElectric propulsion mountingVehicle cleaningDrive motorEngineering
The invention provides a driving motor cooling system with a defrosting function and an application method. The system comprises a defroster, a radiator, a water pump and a water tank, wherein the defroster is connected with a cooling liquid outlet of a driving motor and a water inlet of the radiator, a water outlet of the radiator is connected with a water inlet of the water pump, a water outletof the water pump is connected with a cooling liquid inlet of the driving motor, and a water inlet of the water pump is further connected with the water tank. Heat of the driving motor is effectivelyutilized in the defroster, so that the problems about heat dissipation of the driving motor and the energy consumption of the defroster are solved, no extra energy consumption is needed for defrosting, resources are fully utilized, and the cost is reduced.
Owner:HUNAN CSR TIMES ELECTRIC VEHICLE
Inclined shaft freezing and cooling capacity recovery device capable of improving safe operation of ammonia system without shutdown
PendingCN113107495AImprove utilization efficiencyImprove cycle efficiencyShaft sinkingSaline waterProcess engineering
The invention discloses an inclined shaft freezing and cooling capacity recovery device capable of improving safe operation of an ammonia system without shutdown, which comprises a saline water system, an ammonia system, a clear water system and a completed stage frozen wall cooling capacity extraction system, the saline water system provides cooling capacity for an uncompleted stage frozen wall, the ammonia system provides cooling capacity for low-temperature saline water of the saline water system, and the clear water system provides cooling capacity for low-temperature saline water of the clear water system. The clear water system provides cold energy for high-temperature and high-pressure ammonia gas of the ammonia system, and the completed stage frozen wall cold energy extraction system provides cold energy for the clear water system. The refrigeration capacity accumulated in the freezing wall at the completed stage is extracted by additionally arranging the refrigeration capacity extraction system for the freezing wall at the completed stage, so that the inclined shaft freezing system can continuously run without shutdown, the running cost is reduced, the waste of water resources and energy is effectively avoided, and the safety of the shaft freezing system is greatly improved.
Owner:TIANDI SCI & TECH CO LTD +1
System capable of improving cooling effect of cooling tower by means of reducing moisture content of air
InactiveCN102519299BImprove efficiencyLower the inlet water temperatureDispersed particle separationBy chemical separationCooling towerVapor–liquid separator
The invention relates to a system capable of improving a cooling effect of a cooling tower by means of reducing moisture content of air, which is characterized by comprising a cooling water subsystem of a power plant, a CO2 capturing subsystem and a liquor dehumidifying subsystem. The cooling water subsystem of the power plant and the CO2 capturing subsystem are integrated by the aid of the liquor dehumidifying subsystem, the cooling water subsystem of the power plant consists of the cooling tower (18), the CO2 capturing subsystem comprises an absorption tower (1), a rich liquor pump (7), a barren liquor heat exchanger (8), a reboiler (9), a barren liquor cooling heat exchanger (19) and a regeneration gas water cooler (20), and the liquor dehumidifying subsystem consists of a dehumidifierinlet fan (10). By the aid of the system, vacuum degree of a condenser is increased, power generation efficiency is improved, coal consumption is reduced, and influence of the CO2 capturing subsystemto efficiency of the power plant is reduced.
Owner:SOUTHEAST UNIV
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