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38results about How to "Reduce transmission and distribution energy consumption" patented technology
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Solution type full-air air conditioning unit equipped with cold source and heat source completely
InactiveCN104197435AAccurate humidityAccurate supply air temperatureHeating and refrigeration combinationsAir conditioning systemsFresh airEngineering
The invention relates to the technical field of air conditioning devices in civil and industrial projects, in particular to a solution type full-air air conditioning unit equipped with a cold source and a heat source completely. A cold source unit or a heat source unit can prepare and output refrigerants / cold water or heating media / heat water and can provide all cold energy and heat energy for the unit for processing thermal-humidity load of air without being connected with other cold sources or heat sources. A full-air unit can perform cooling and dehumidification processing or heating and humidification processing on fresh air and mixed air. The cold source unit or the heat source unit comprises a compressor, an expansion valve and a refrigerant circulation pipeline, wherein the refrigerant circulation pipeline comprises a first main pipeline, a second main pipeline, a third main pipeline and a fourth main pipeline. The first main pipeline is connected with a fresh air thermal-humidity processing unit through a first refrigerant input branch pipeline. The fresh air thermal-humidity processing unit is connected with the input end of the compressor through the second main pipeline. A second refrigerant input branch pipeline is connected with a mixed air heat humidity processing unit. Refrigerants flowing back from the mixed air thermal-humidity processing unit flow to the second main pipeline from a second refrigerant output branch pipeline.
Owner:BEIJING GEAREA LEADER AIR CONDITIONING TECHCO
Large temperature rise compression heat pump units
InactiveCN101256042AIncrease temperature differenceImprove the coefficient of performanceHeat pumpsWater source heat pumpWater source
The invention pertains to heating and hot water supply field, relating to a high efficiency large temperature rise compression heat pump set with a big inlet-outlet temperature difference at both a heat sink side and a head source side. The large temperature rise compression heat pump set is configured by assembling two water source heat pump devices, and each heat pump set comprises separately in series or in parallel a compressor, a condenser, an evaporator, a subcooler, and a throttling device, or an added economizer, and forms a separate working medium circulation loop. The inventive large temperature rise compression heat pump set can heat returned hot water step by step from a low temperature to a high temperature, the cold water is cooled step by step in a reverse direction of the temperature rise of the cooling water, and temperature difference between the hot water and cold water at the inlet and outlet of the heat pump is enlarged; and the performance coefficient of the heat pump set is further enhanced comparing with a simple two-stage compression heat pump in series, so that the comprehensive energy utilization efficiency and economy of the inventive system are increased greatly comparing with a common heat pump set.
Owner:TSINGHUA UNIV +1
Biomass combined heat and power generation system capable of recycling steam exhaust and smoke waste heat at the same time
PendingCN109681281AAchieve optimal utilizationReduce water consumptionHeat recovery systemsLighting and heating apparatusCooling towerEngineering
The invention provides a biomass combined heat and power generation system capable of recycling steam exhaust and smoke waste heat at the same time, and belongs to the technical field of biomass energy use. The system comprises a biomass boiler, a steam turbine, a steam exhaust heat exchanger, a condenser, a cooling tower, a boiler water supply heater, a smoke emission reduction and waste heat recycling integrated unit, a smoke spraying water heat exchanger, a chimney, a power grid, an end electric heat pump, a user heat exchanger, a connecting pipeline and a valve. The smoke emission reduction and waste heat recycling integrated unit comprises a desulfurizing tower and a waste heat recycling tower; the electric heat pump mixed water heat supply manner is adopted on the user side to reducethe heat supply network water returning temperature, through direct heat exchange, smoke condensation latent heat and steam exhaust waste heat in a power plant can be recycled in a gradient manner, the heat supply capacity of a biomass power plant can be increased, and the optimal biomass energy comprehensive use efficiency is obtained.
Owner:TSINGHUA UNIV
Ice storage air conditioning system based on pneumatic transport and distribution
InactiveCN108019859AReduce disturbanceSlow startupRefrigeration componentsAir conditioning systemsElectricityBuilding energy
The invention provides an ice storage air conditioning system based on pneumatic transport and distribution. The ice storage air conditioning system is composed of an ice making and storage device, aconnecting device, a channel valve, air blowers, exhaust fans, transport pipelines, a pipeline reverser and an air conditioning terminal device. The ice storage air conditioning system has the beneficial effects that the system is combined with a solar photovoltaic power generation system, electricity generated by solar energy maintains operation of a central air conditioning in a non-ice storagestate, disturbance to a power grid during peak-load hours is reduced, and more energy is saved. The air conditioning system adopts the pneumatic transport and distribution mode, transport and distribution energy consumption is small, and the starting speed is high. Compared with a traditional water pump, the building energy consumption can be reduced by at least 15%. In the energy-saving reconstruction process of a building, the applicability is high, the capacity of a refrigerating unit is smaller, the service life is longer, the refrigerating capacity is improved by 30-50%, and the operationcost is reduced by 60%.
Owner:TIANJIN CHENGJIAN UNIV +1
Air conditioning device capable of manufacturing coolants or heating media and simultaneously treating air heat loads and humidity loads
InactiveCN103712291ASmall footprintReduce transmission and distribution energy consumptionEnergy recovery in ventilation and heatingSpace heating and ventilation detailsEngineeringAir conditioning
The invention relates to the technical field of air conditioning devices in civilian and industrial projects, in particular to an air conditioning device capable of manufacturing coolants or heating media and simultaneously treating air heat loads and humidity loads. The air conditioning device comprises a cold source or heat source unit and an air heat and humidity treatment unit, and the cold source or heat source unit is used for providing cold or heat for treating the air heat loads and humidity loads and simultaneously manufacturing the coolants or heating media which are output and use refrigerating fluid as a carrier. The air heat and humidity treatment unit can carry out cooling and dehumidification treatment or heating and humidification treatment on air. The cold source or heat source unit comprises a compressor, an expansion valve and refrigerating fluid circulating pipelines, the refrigerating fluid circulating pipelines comprise a first main pipeline, a second main pipeline, a third main pipeline and a fourth main pipeline, the first main pipeline is connected with the air heat and humidity treatment unit through a first refrigerating fluid input branch, the air heat and humidity treatment unit is connected with the input end of the compressor through the second main pipeline, a second refrigerating fluid input branch is directly connected with the outside, and refrigerating fluid flowing back from the outside flows into the second main pipeline through a second refrigerating fluid output branch.
Owner:格瑞智慧人居环境科技(江苏)有限公司
Building-type absorption-type heat exchange station
ActiveCN106091071AIncrease the temperature difference between supply and return waterSimple hydraulic distributionLighting and heating apparatusSpace heating and ventilation detailsCirculator pumpTemperature difference
The invention discloses a building-type absorption-type heat exchange station. The building-type absorption-type heat exchange station is an integral heat exchange station consisting of an absorption-type heat exchanger, a water-supplying and pressure-stabilizing device, a two-stage circulation pump and a primary network water path and a secondary network water path in the station; primary network inlet water is divided into two branches after entering the station, wherein one path is connected with the hot side inlet of the absorption-type heat exchanger, and the other path is connected with the water inlet of the water-supplying and pressure-stabilizing device; the hot side outlet of the absorption-type heat exchanger is connected with the primary water outlet of the heat exchange station through a flowmeter; secondary network returning water is divided into two branches after entering the station and passing by a water treatment device, wherein one branch is connected with the cold side inlet of the absorption-type heat exchanger, and the other branch is connected with the water outlet of the water-supplying and pressure-stabilizing device; the cold side outlet of the absorption-type heat exchanger is connected with the inlet of the two-stage circulation pump; and the outlet of the two-stage circulation pump is connected with the secondary water outlet of the heat exchange station. According to the building-type absorption-type heat exchange station disclosed by the embodiment of the invention, the temperature of the primary network returning water is lowered; and the temperature difference between the primary network supplying water and the primary network returning water is increased, so that secondary network water power distribution is simpler.
Owner:TSINGHUA UNIV
Refrigeration dehumidifying all-air conditioning unit with all cold and heat sources
InactiveCN104819523AReduce transmission and distribution energy consumptionEliminate distribution systemAir treatment detailsLighting and heating apparatusDistribution systemFresh air
The invention relates to the technical field of air conditioners, in particular to a refrigeration dehumidifying all-air conditioning unit with all cold and heat sources. The refrigeration dehumidifying all-air conditioning unit comprises a cold or heat source unit, an all-air heat and moisture treatment unit and a heat recovery unit, the all-air heat and moisture treatment unit comprises a fresh air heat and moisture treatment unit and a mixed air heat and moisture treatment unit, the cold or heat source unit is sued for providing all cold or heat quantity for treatment of air heat and moisture load, the temperature of the fresh air can be reduced by the fresh air heat and moisture treatment unit, fresh air can be dehumidified or heated and humidified by the fresh air heat and moisture treatment unit, the temperature of the mixed air of return air and the fresh air can be reduced by the mixed air heat and moisture treatment unit, and the mixed air can be dehumidified or heated by the mixed air heat and moisture treatment unit. By the aid of the structure, cold or heat source devices, cold or heat source machine rooms and transmission and distribution systems among the cold and heat sources and the air conditioning unit can be omitted, cold water and heat water transmission and distribution energy consumption of an air conditioning system is completely omitted, the refrigeration dehumidifying all-air conditioning unit solves the problem of difficulty in distribution and adjustment of cold and heat quantity among the concentrated cold and heat sources and air conditioning zones, and energy is remarkably saved.
Owner:格瑞智慧人居环境科技(江苏)有限公司
Air conditioning device capable of treating air heat and humidity load and producing cold water or hot water simultaneously
InactiveCN103697543AReduce energy consumptionLow costFluid circulation arrangementHeating and refrigeration combinationsHeat flowEngineering
The invention relates to the technical field of air conditioning devices in civil and industrial projects, in particular to an air conditioning device capable of treating air heat and humidity load and producing cold water or hot water simultaneously. The air conditioning device comprises a cold or heat source unit and an air heat and humidity treatment unit; the cold or heat source unit is used for treating the air heat and humidity load to provide cold flow or heat flow and producing cold water or hot water delivered to the outside simultaneously; the air heat and humidity treatment unit can perform cooling and dehumidification or heating and humidification on air; the cold or heat source unit comprises a compressor, an expansion valve and a cooling agent circulating pipeline, the cooling agent circulating pipe comprises a first main pipeline, a second main pipeline, a third main pipeline and a fourth main pipeline, the first main pipeline is connected with the air heat and humidity treatment unit through a first cooling agent input branch, the air heat and humidity treatment unit is connected with the input end of the compressor through the second main pipeline, and the first main pipeline is connected with a cold or hot water input end of an in-out unit through a second cooling agent input branch, and used for cooling or heating cold or hot water of the in-out unit.
Owner:刘拴强
Regulation method and device for reducing return water temperature of heating system
ActiveCN104633766AReduce energy consumptionImprove transmission and distribution distanceLighting and heating apparatusSpace heating and ventilation detailsRoom temperatureEngineering
The invention relates to a regulation method and device for reducing the return water temperature of a heating system. The device comprises a room temperature on-off control valve, a room temperature controller and a return water temperature monitoring sensor which are respectively arranged in each house. The regulation method includes the steps: 1) arranging the room temperature on-off control valve at an inlet of a water supply branch pipeline of each house, arranging the room temperature controller indoors and arranging the return water temperature monitoring sensor at a position of each return water branch pipeline before entering a main return water pipeline; 2) setting indoor temperature through the room temperature controller by a user; 3) transmitting measured indoor temperature signals and indoor temperature signals set by the user to the room temperature on-off control valve by the room temperature controller, and transmitting measured return water temperature signals to the room temperature on-off control valve by the return water temperature monitoring sensor; 4) controlling the on-off period of the room temperature on-off control valve: 4.1) determining on time according to the return water temperature; 4.2) adjusting the duration of a next on-off period according to room temperature deviation of the current on-off period and indoor temperature change rate.
Owner:TSINGHUA UNIV
Fresh air handling unit provided with cold/heat source without auxiliary heat exchange device and capable of outputting refrigerant/heat medium
InactiveCN105371526ASave construction areaLow costEnergy recovery in ventilation and heatingEvaporators/condensersDistribution systemAir treatment
The invention discloses a fresh air handling unit provided with a cold / heat source without an auxiliary heat exchange device and capable of outputting a refrigerant / heat medium. The fresh air handling unit comprises a cold / heat source unit without the auxiliary heat exchange device, a fresh air heat-humidity treatment unit and a refrigerant / heat medium output unit. The cold / heat source unit without the auxiliary heat exchange device dissipates heat or heats through exhaust air or fresh air and can provide all cold / heat energy for air heat and humidity load treatment of the unit without externally arranging auxiliary heat dissipation or heating devices. The fresh air heat-humidity treatment unit can cool, dehumidify, heat and humidify the fresh air. The refrigerant / heat medium output unit can output the refrigerant / heat medium to provide cold / heat energy to other devices. By means of the fresh air handling unit, centralized cold / heat source equipment, externally-arranged heat dissipation or heating devices, transportation and distribution systems among the cold / heat source and the air conditioning unit or other air treatment terminals can be reduced or omitted, meanwhile transportation and distribution energy consumption of a fresh air system is saved, the problem that cold energy / heat energy distribution and adjustment among the centralized cold / heat source and air conditioner partitions are difficult is solved, and energy is saved remarkably.
Owner:BEIJING GEAREA LEADER AIR CONDITIONING TECHCO
Heat multiplication type hot site heat exchanger unit
InactiveCN101793423AReduce transmission and distribution energy consumptionHuge potential for energy savingsLighting and heating apparatusEnergy efficient heating/coolingWater sourceWater flow
The invention discloses a heat multiplication type hot site heat exchanger unit belonging to the field of heat supply and heating. The invention has the technical characteristics that primary side heating medium is firstly connected with an absorption type heat pump unit to serve as a drive source on the basis that the existing intensive heat supply primary side heating medium is converted into secondary side hot water by a heat exchanger, and heat is obtained from the environmental heat source by the absorption type heat pump unit so as to realize the purpose of secondary side heat multiplication. The invention can directly utilize primary side hot water or steam as the heating medium to drive the absorption type heat pump unit to obtain heat from ambient air or water source environment to realize secondary side heat multiplication heat exchange; according to working condition variation, the outlet heating medium of the absorption type heat pump unit can be used to further heat the secondary side hot water flowing out of the absorption type heat pump unit. On the premise of ensuring the using function of the secondary side, the invention reduces primary network supply heat and heating medium flow of unit heating area so as to reduce the size of a heat supply network pipeline and lower primary energy consumption and transportation and distribution energy consumption thereof, so that the invention has obvious energy saving effect.
Owner:TSINGHUA UNIV
Method for reducing return water temperature of heat supply pipeline
ActiveCN101629733BLower return water temperatureReduce initial investmentLighting and heating apparatusEnergy efficient heating/coolingEnergy technologyAbsorption heat pump
Owner:TSINGHUA UNIV +1
Low-temperature water supply large-temperature-difference cold source and air conditioning system
PendingCN108224621AIncrease temperature differenceReduce capacityMechanical apparatusLighting and heating apparatusPlate heat exchangerTemperature difference
The invention discloses a low-temperature water supply large-temperature-difference cold source and an air conditioning system. The low-temperature water supply large-temperature-difference cold source and the air conditioning system are characterized in that an air inlet of an indirect evaporative cooling water supply device is provided with a surface cooler; the indirect evaporative cooling water supply device is connected to an inlet of a primary side of a plate heat exchanger, and an outlet of the primary side of the plate heat exchanger is connected to an inlet tube of the surface cooler;a freezing water outlet pipe of an evaporator is connected to a user water supply, and an outlet pipe of a user water return is connected to an inlet of a secondary side of the plate heat exchanger;and an outlet pipe of the surface cooler is connected to a cooling water inlet of a condenser of a mechanical compression type cold water machine, and a cooling water outlet pipe of the condenser is connected to a spraying device of the indirect evaporative cooling water supply device. The low-temperature water supply large-temperature-difference cold source and the air conditioning system have the advantages that the structure is reasonable, the cold water temperature of users is reduced, and the problems that the indirect evaporative cooling water supply device is high in water outlet temperature and the comfort requirement of an air conditioner cannot be met are solved; the capacity of a refrigerating unit is effectively reduced; and the cold amount of the cold water is fully released,the temperature difference of the indirect evaporative cooling water supply device is improved, and the energy-saving performance is obvious.
Owner:于向阳
Central heating system for segmented cooling of multipath backwater of circulating cooling water
ActiveCN108679685AReduce transmission and distribution energy consumptionSave construction investmentLighting and heating apparatusEnergy efficient heating/coolingCooling towerResource consumption
The invention relates to a central heating system for segmented cooling of multipath backwater of circulating cooling water. The system comprises a heat exchange device, a reheater, a waste heat energy allocating center and water quality and temperature monitoring control equipment. The system is characterized in that the circulating cooling water in a circulating water pipeline successively exchanges heat through the heat exchange device and the reheater to obtain directly used heat, heat is then released in the waste heat energy allocating center, and finally, a closed cycle is formed by means of the water quality and temperature monitoring control equipment. According to the system provided by the invention, waste heat of a process medium originally discharged to an environment througha cooling tower becomes a direct heat source output by the waste heat energy allocating center to surrounding heat consumers, so that a lot of energy sources used for heating are saved, and meanwhile,the resource consumption for treating the circulating cooling water is reduced greatly.
Owner:陈连祥
Method for reducing transmission and distribution energy consumption of regional central heat supply network
InactiveCN104848412AReduce transmission and distribution flowReduce transmission and distribution energy consumptionLighting and heating apparatusSpace heating and ventilation detailsElectricityProcess engineering
The invention discloses a method for reducing transmission and distribution energy consumption of a regional central heat supply network. The method comprises the steps of establishing a building heating entry jet flow mixing device of a building according to all of heat supply building heating entry within a heat supply range of a heat supply system, adjusting the opening degree of an electric valve of the building heating entry jet flow mixing device and the jet mixing ratio of the water jet flow mixing device, adjusting a transmission and distribution water pump configured for the heat supply network according to building heating mass requirement so as to adjust transmission and distribution flow of the heat supply network and achieve adjustment of all building heating entry positions. Under the situation that the flow of the heat supply system in the building is constant, the flows of the building heating entries connected with the heat supply network is reduced to reduce the transmission and distribution energy consumption of the heat supply network, electricity consumption of the transmission and distribution water pump, improve the temperature difference of supply water and return water and the ratio of the transmission and distribution flows of the building heating entries connected with the heat supply network to the flow of the building heat supply system, improve the adjustability and stability of hydraulic power and heating power of the building heat supply system, save device and maintain cost.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
AI-based adaptive variable pressure difference control method for air conditioning variable flow water system
ActiveCN112254320BLarge openingPrediction results are accurate and reliableMechanical apparatusDigital data information retrievalControl engineeringTerminal equipment
Owner:CHONGQING UNIV
Heat pump type large temperature difference heat exchange system and method
ActiveCN105805946ALow investment costReduce transmission and distribution energy consumptionFluid heatersMechanical apparatusEngineeringTemperature difference
The invention discloses a heat pump type large temperature difference heat exchange system and method. A generator, an absorber, a condenser and evaporators are arranged in a heat pump / refrigerator. The heat pump / refrigerator, water-water heat exchangers, a first-network-water water way and a second-network-water water way are combined and connected through valves and pipelines. The multiple evaporators are arranged. One or more water-water heat exchangers are arranged. When the multiple water-water heat exchangers are arranged, the water-water heat exchangers are connected in series, and the multiple evaporators are connected in series or independently and externally connected. When the multiple evaporators are connected in series, the multiple evaporators, primary parts of the water-water heat exchangers and the generator in the heat pump / refrigerator are connected in the first-network-water water way in series together. When the multiple evaporators are independently and externally connected, the multiple evaporators are connected in the first-network-water water way and the second-network-water water way in series correspondingly. The water supply and return temperature difference of first-network water is enlarged, the heating network conveying capability is improved, due to the low water return temperature of the first-network water, the problems about heat insulation, heat compensation and the like of a water return pipe network can be solved, and the pipe network investment cost and the transmission and distribution energy consumption of the first-network water can be greatly reduced.
Owner:HUNAN TOWN ENERGY TECH
Air-conditioning water system control system
ActiveCN113587414ALarge openingPrediction results are accurate and reliableMechanical apparatusDigital data information retrievalControl systemControl engineering
The invention discloses an air-conditioning water system control system. The system is characterized by comprising a terminal load anticipator connected with an outdoor data detection instrument outside a room where each air-conditioning terminal is located, a terminal equipment instantaneous required flow calculation module used for obtaining the maximum supply and return water temperature difference of safe and stable operation of each air-conditioning terminal, a control differential pressure generator connected with the terminal equipment instantaneous required flow calculation module at one end and connected with a water pump controller at the other end, and a water pump controller connected with a secondary pump in a power unit of the air-conditioning water system, wherein the water pump controller can conduct PID control on the water pump number and frequency of the secondary pump according to the deviation of the actual water supply and return pressure difference and the control pressure difference set value which are collected in real time. The system can more accurately meet terminal requirements, and has the advantages of simplicity, accuracy, safety and stability in control.
Owner:CHONGQING UNIV
Secondary parallel heat pump unit
InactiveCN109751769ASimple structureSmall temperature differenceFluid heatersHeat pumpsEngineeringThermal water
The invention relates to a secondary parallel heat pump unit. The heat pump unit comprises the first heat pump unit and the second heat pump unit are arranged in parallel, and a heat exchange unit isarranged between the first heat pump unit and the second heat pump unit. A lower hot water step can be heated to a higher temperature in a gradient manner, the cold water is cooled in a gradient manner according to the direction opposite to the heating temperature of the hot water, the temperature difference between hot water and cold water at the inlet and outlet of the heat pump is increased, and the comprehensive energy utilization efficiency of the system is improved.
Owner:耿艳
Refrigeration and dehumidifying type air-conditioning device provided with all cold and heat sources and capable of preparing cold and hot water
InactiveCN104964480ASmall footprintReduce energy consumptionHeating and refrigeration combinationsAir conditioning systemsEngineeringAir conditioning
The invention relates to a refrigeration and dehumidifying type air-conditioning device provided with all cold and heat sources and capable of preparing cold and hot water. The refrigeration and dehumidifying type air-conditioning device comprises a compressor, a first refrigeration or heating device, a second refrigeration or heating device, a first cold exchange or heat exchange device, a second cold exchange or heat exchange device, a humidifying module, a reheating module, a throttling valve and a rotary wheel heat recycling module, wherein new air passes through a rotary wheel in the rotary wheel heat recycling module to be cooled, dehumidified or heated, then passes through the first refrigeration or heating device, the humidifying module and the reheating module, is mixed with mixed air and enters the second refrigeration or heating device to be cooled and dehumidified. Most of the new air is fed into a room, and the left is returned to the rotary wheel in the rotary wheel heat recycling module, so that energy conversion is realized. The first cold exchange or heat exchange device outputs cold or hot water. The refrigeration and dehumidifying type air-conditioning device resolves the problems that a common full-air air-conditioning system is high in energy consumption, large in building occupied space, long in construction cycle, complex in process and the like.
Owner:格瑞智慧人居环境科技(江苏)有限公司
Water-mixing high-temperature-difference heat supply equipment and heat supply method
InactiveCN109780611AReduce transmission and distribution energy consumptionRealize small flowLighting and heating apparatusHot-water central heatingPower stationTemperature difference
The invention discloses water-mixing high-temperature-difference heat supply equipment and method. The water-mixing high-temperature-difference heat supply equipment comprises a first heat pump, wherein the first heat pump comprises a first heater, a second heater and a first cooler; secondary water return water of a downstream heat user comprises first-path return water and second-path return water; primary water supply water of an upstream heat source, and the first-path return water are heated via the first heater and the second heater separately, and are collected to form collected water,and the collected water is output to the downstream heat user; and the second-path return water is cooled via the first cooler and output to the upstream heat source. The water-mixing high-temperature-difference heat supply equipment and method are capable of carrying out high-temperature-difference heat supply in a relay power station, and the temperature of primary return water is lowered on thepremise of ensuring the heat supply parameters of the downstream heat user; and meanwhile, the temperature of the return water is further lowered, the temperature difference between the supply waterand the return water is increased, and the transmission and distribution energy consumption of a trunk network is reduced by adequately utilizing the many energy of gas, steam, electric energy and thelike existing in the relay power station.
Owner:北京华源泰盟节能设备有限公司
Classified water mixing pump user unit
PendingCN109506282AReduce transmission and distribution energy consumptionImprove delivery efficiencyDucting arrangementsLighting and heating apparatusMotor speedWater flow
The invention provides a classified water mixing pump user unit which comprises a water mixing pipe arranged between a water supply pipe and a water return pipe, a water mixing pump arranged on the water supply pipe in the rear of the water mixing pipe, and a classifying pump arranged on the water return pipe in the rear of the water mixing pipe. The classifying pump provides power for flowing water in a main transmission and distribution water supply pipe network to the water supply pipe; and the water mixing pump is used for mixing water in the water supply pipe and returned water in the water return pipe to obtain the water with the temperature required by a user, and then the water is supplied to the user. According to the classified water mixing pump user unit provided by the invention, the flows of a classifying pump and the water mixing pump can be changed through adjusting the motor speeds of the classifying pump and the water mixing pump, so that the problems of the oversupplyof the flow at the front end of the pipe network and the undersupply of the flow at the tail end of the pipe network are effectively solved.
Owner:西安市建筑设计研究院有限公司
All-air unit with its own cold and heat source, no auxiliary cooling device and external cooling and heating medium
ActiveCN105371394BRealize integrationReduce heatingEnergy recovery in ventilation and heatingLighting and heating apparatusDistribution systemEngineering
The invention relates to a full-air unit provided with cold / heat sources without an auxiliary heat dissipation device and capable of outputting a refrigerant / heat medium. The full-air unit comprises cold / heat source units, an air heat-humidity treatment unit and a heat dissipation / heat absorption unit. The air heat-humidity treatment unit comprises a fresh air heat-humidity treatment unit and a mixed air heat-humidity treatment unit. The cold / heat source units prepare the refrigerant and the heat medium to provide all cold energy or heat energy for air heat-humidity load treatment of the unit without other external cold sources or heat sources and meanwhile output the refrigerant and the heat medium to the outside of the unit. The heat dissipation / heat absorption unit conducts heat dissipation treatment or heat absorption treatment through unit exhaust air and part of fresh air without an external auxiliary heat dissipation device. By means of the full-air unit, refrigerating / heating devices are integrated into the full-air air conditioning unit based on a solution manner, cold / heat source devices and transportation and distribution systems between cold / heat sources and a tail end air conditioning unit are omitted, meanwhile all cooling water and hot water transportation and distribution energy consumption is saved, the problem that cold energy / heat energy distribution and adjustment among the cold / heat sources and air conditioner partitions are difficult is solved, and energy is saved remarkably.
Owner:格瑞海思人居环境科技(江苏)有限公司
A hydraulic decoupling tank for central heating system
InactiveCN103453579BReduce transmission and distribution energy consumptionEnsure safe workLighting and heating apparatusSpace heating and ventilation detailsEngineeringHeat load
The invention discloses a hydraulic decoupling tank for a central heating system. The hydraulic decoupling tank comprises a tank body. A heat source water-supply pipe joint and a heat source water-return pipe joint are respectively distributed on the upper portion and the lower portion of one side wall of the tank body, a heat supply network water-supply pipe joint and a heat supply network water-return pipe joint are respectively distributed on the upper portion and the lower portion of the other side wall of the tank body. The heat source water-supply pipe joint and the heat supply network water-supply pipe joint are arranged at the same level, and the heat source water-return pipe joint and the heat supply network water-return pipe joint are arranged at the same level. An upper end socket and an air bleeder are respectively arranged on the top of the tank body, and a lower end socket and a blow-off valve are respectively arranged at the bottom of the tank body. The hydraulic decoupling tank decouples a heat source water system and a heat supply network system, and circular flow of the heat supply network is adjusted according to changes of heat load, so that an energy saving effect of a distributed variable-frequency water pump heating system is functioned fully and energy consumption in transmission and distribution of the heating system is reduced.
Owner:TIANJIN UNIV
A heat pump type large temperature difference heat exchange system and method
ActiveCN105805946BLow investment costReduce transmission and distribution energy consumptionFluid heatersMechanical apparatusCondenser (heat transfer)Engineering
A heat pump type large temperature difference heat exchange system and method. The heat pump / refrigerator is equipped with a generator, an absorber, a condenser and an evaporator, the heat pump / refrigerator, a water-water heat exchanger, a water network and a secondary network The water channel is combined and connected through valves and pipelines; there are multiple evaporators, one or more water-water heat exchangers, and multiple water-water heat exchangers are connected in series, and multiple evaporators Series connection or independent external connection; when multiple evaporators are connected in series, multiple evaporators are connected in series with the primary water-water heat exchanger and the generator in the heat pump / refrigerator; multiple evaporators When connected externally independently, multiple evaporators are connected in series in the first network water channel and the second network water channel respectively. The invention increases the temperature difference between water supply and return water in one network, improves the heat transfer capacity of the heat network, and the low temperature of return water in one network can avoid problems such as heat preservation and thermal compensation of the return water pipe network, thereby greatly reducing the investment cost of the pipe network And a network of water transmission and distribution energy consumption.
Owner:HUNAN TOWN ENERGY TECH
A data center cabinet with its own temperature control device and servers arranged vertically
ActiveCN109379883BEvenly distributedImprove heat transfer effectServersCooling/ventilation/heating modificationsTemperature controlCooling effect
Owner:NORTHEASTERN UNIV LIAONING
Building type absorption heat exchange station
ActiveCN106091071BIncrease the temperature difference between supply and return waterSimple hydraulic distributionLighting and heating apparatusSpace heating and ventilation detailsCold sideCirculator pump
The invention discloses a building-type absorption heat exchange station, which is composed of an absorption heat exchanger, a water replenishment constant pressure device, a secondary circulation pump, a primary network waterway and a secondary network waterway in the station to form an integrated heat exchange station, and the primary network After the water enters, it is divided into two branches, one branch is connected to the hot side inlet of the absorption heat exchanger, and the other branch is connected to the water inlet of the water supply constant pressure device, and the hot side outlet of the absorption heat exchanger passes through the flowmeter It is connected with the primary water outlet of the heat exchange station; the return water from the secondary network is divided into two branches after entering the water treatment device, one branch is connected to the cold side inlet of the absorption heat exchanger, and the other branch is connected to the water supply and constant pressure The water outlet of the device and the cold side outlet of the absorption heat exchanger are connected to the inlet of the secondary circulation pump, and the outlet of the secondary circulation pump is connected to the secondary water outlet of the heat exchange station. The building-type absorption heat exchange station according to the embodiment of the present invention reduces the return water temperature of the primary network, increases the temperature difference between the supply and return water of the primary network, and makes the hydraulic distribution of the secondary network simpler.
Owner:TSINGHUA UNIV
Full-air unit provided with cold/heat sources without auxiliary heat dissipation device and capable of outputting refrigerant/heat medium
ActiveCN105371394ARealize integrationReduce heatingEnergy recovery in ventilation and heatingLighting and heating apparatusDistribution systemProcess engineering
The invention relates to a full-air unit provided with cold / heat sources without an auxiliary heat dissipation device and capable of outputting a refrigerant / heat medium. The full-air unit comprises cold / heat source units, an air heat-humidity treatment unit and a heat dissipation / heat absorption unit. The air heat-humidity treatment unit comprises a fresh air heat-humidity treatment unit and a mixed air heat-humidity treatment unit. The cold / heat source units prepare the refrigerant and the heat medium to provide all cold energy or heat energy for air heat-humidity load treatment of the unit without other external cold sources or heat sources and meanwhile output the refrigerant and the heat medium to the outside of the unit. The heat dissipation / heat absorption unit conducts heat dissipation treatment or heat absorption treatment through unit exhaust air and part of fresh air without an external auxiliary heat dissipation device. By means of the full-air unit, refrigerating / heating devices are integrated into the full-air air conditioning unit based on a solution manner, cold / heat source devices and transportation and distribution systems between cold / heat sources and a tail end air conditioning unit are omitted, meanwhile all cooling water and hot water transportation and distribution energy consumption is saved, the problem that cold energy / heat energy distribution and adjustment among the cold / heat sources and air conditioner partitions are difficult is solved, and energy is saved remarkably.
Owner:格瑞海思人居环境科技(江苏)有限公司
Air conditioning cold water and hot water conveying and distribution system and method
InactiveCN109282398AReduce transmission and distribution energy consumptionEliminate ineffective energy consumptionMechanical apparatusLighting and heating apparatusDevice formDistribution system
The invention relates to an air conditioning cold water and hot water conveying and distribution system and method. The system comprises a cold and hot source device and an N-stage pump, wherein the cold and hot source device is used for providing cold water and hot water for an air conditioner, the cold and hot source device forms a cold and hot station comprising a cold and hot source device through a pipeline, and the cold and hot station is used for providing cold water and hot water; N in the N-stage pump is a natural number larger than or equal to 3; the cold and hot source device passesthrough a main pipeline and a plurality of auxiliary pipelines to be connected with a tail end device; for the N-stage pump, a first-stage pump is arranged in the cold and hot station containing thecold and hot source device and is used for controlling generation of the cold water and the hot water in the cold and hot source device; a second-stage pump is arranged on the main pipeline, and is used for controlling conveying of the cold water and the hot water on the main pipeline, and controlling flow rates and pressure heads on the main pipeline at the same time; and pumps from the second-stage pump to the N-stage pump are used for jointly adjusting the flow rates and the pressure heads of the cold water and the hot water in the tail end device, so that distribution of the cold water andhot water generated from the cold and hot source device when the cold water and hot water enter the tail end device is controlled.
Owner:CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD
Stage pump and water mixing pump unit for users applied to building with low terrain
InactiveCN109469942AReduce transmission and distribution energy consumptionImprove delivery efficiencyDucting arrangementsLighting and heating apparatusMotor speedTerrain
The invention provides a stage pump and water mixing pump unit for users applied to a building with low terrain, which comprises a water mixing pipe arranged between a water supply pipe and a water return pipe, and a stage pump and a water mixing pump which are arranged on the water return pipe; one end of the water mixing pipe is arranged on the water return pipe between the stage pump and the water mixing pump; and the stage pump provides power for water in a main transmission and distribution water supply pipe network flowing to the water supply pipe, and the water mixing pump mixes water in the water supply pipe and return water in the water return pipe to be at a temperature required by a user and then supplies the mixed water to the user. The flows of the stage pump and the water mixing pump can be changed only by adjusting the motor speeds of the stage pump and the water mixing pump, so that the problems of excessive flow supply at the front end of the pipe network and insufficient flow supply at the tail end of the pipe network are effectively solved.
Owner:西安市建筑设计研究院有限公司
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