60results about How to "Raise the temperature of the water supply" patented technology

A cold regulation device in cold supplying system of local centralized type is prepared as connecting server of refrigerating station (SRS) to controller of refrigerating station (CRS) and controller of secondary cold exchanging station (CSCES) through converter, connecting multiple remote monitor computer to CRS and multiple CSCES through converter, connecting each CSCES to local monitor computer and multiple tail end controllers separately through industrial control network, carrying out cold regulation on tail device of central air-conditioning and on secondary cold exchanging station, carrying out water temperature regulation on local centralizing cold supplying network.

The invention relates to a novel low-temperature combined cooling, heating and power (CCHP) system based on a heat pump. Currently, no novel low-temperature CCHP system based on the heat pump with a simple structure and a reasonable design exists. The novel low-temperature CCHP system based on the heat pump comprises a high-pressure steam pipe, a steam turbine, a power generator, a condenser and a boiler connecting pipe, and is characterized by also consisting of a heating low-pressure steam pipe, a heating condensate pipe, a power plant after-heat single-effect heat pump unit, a refrigeration single-effect absorbing heat pump unit, a heat pump unit loop pipe, a loop circulating pump, a user refrigeration pipe, a cooling tower, a cooling tower water inlet pipe, a cooling tower water outlet pipe, a cooling water circulating pump, a power plant circulating cooling water pipe, a heat pump cooling tower, a cooling tower circulating pipe, a heating single-effect absorbing heat pump unit, a heating heating pipe, a heat pump circulating pipe and a user heating pipe; the heating low-pressure steam pipe is connected with the refrigeration single-effect absorbing heat pump unit; and the heating condensate pipe is connected with the power plant after-heat single-effect heat pump unit. The novel low-temperature CCHP system based on the heat pump has the advantages of reasonable structural design, energy saving, environmental friendliness and high heat utilization rate.

The invention discloses an air-conditioner control method and device. The air-conditioner control method includes steps of detecting a first temperature difference between a first water supply temperature and a first water return temperature of the air conditioning unit; judging whether a first difference between the first temperature difference and a preset temperature is larger than a first preset threshold or not; if the first difference is larger than the first preset threshold, adjusting frequency of a freezing water pump in the air conditioning unit, so that a second difference between a second temperature difference between a second water supply temperature and a second water return temperature of the air conditioning unit and the preset temperature is smaller than or equal to the first preset threshold under the adjusted frequency of the freezing water pump. The air-conditioner control method solves the technical problem of instable system load caused by variable water temperature or flow control of the air conditioners in the prior art and has the technical advantages that system load stability is maintained, refrigeration and moisturizing of the tail end of the air conditions are guaranteed and system energy consumption is lowered.

The invention provides an energy-saving control device and method for a data center air conditioning terminal. The device and method are applied to a data center air conditioning terminal structure composed of a cold water coil pipe, a draught fan, a regulating valve, a speed regulation execution device, a chilled water inflow pipeline, a chilled water outflow pipeline, an air supply channel and an air return channel. The energy-saving control device comprises a supplied air temperature sensor, a supplied air static pressure sensor, a returned air temperature sensor, an optimization control module, a supplied air temperature control module, a static pressure module and the like. By the adoption of the device and method, the returned air temperature control accuracy can be improved, local hot spots are avoided, the supplied air is controlled in an environment-friendly safe section, the energy consumption of the draught fan of the data center air conditioning terminal can be saved as well, and the energy effect of a whole water cooling air conditioner system is improved.

The invention discloses a solar photovoltaic-thermal combined intelligent water supply system in low rise buildings. Solar energy is converted into electric energy and thermal energy through a photovoltaic-thermal integrated device, the electric energy is used for electric heating of user insulation water tanks, and when the electric energy is surplus, the electric energy is stored in energy storage battery devices. The thermal energy is from cooling water of the photovoltaic-thermal integrated device, the water temperature is low, the low-temperature water is delivered to a trough-type concentrating solar thermal utilization device to be reheated, the temperature of hot water is increased, the hot water is stored in a concentrated insulation water tank, and hot water resources are distributed reasonably. Electric heating units are mounted in the user insulation water tanks and used for electric heating in cloudy and rainy weather. Even on the weather conditions of cloudy days, winter and the like, the system can provide hot water meeting user demand continuously.

A waste heat recovery steam cabinet comprises a cabinet body and a cavity inside the cabinet body. An intake pipe is arranged on one side of the cabinet body, an exhaust pipe is arranged on the other side of the cabinet body, the intake pipe and the exhaust pipe are respectively communicated with the cavity, the intake pipe is communicated with a steam generator, the exhaust pipe penetrates the inside of a heat exchange water tank, and the inside of the heat exchange water tank is communicated with the steam generator through a water pump and a water inlet pipe. By the aid of a waste steam recovery device, most exhausted waste steam is recovered by a condenser of the water tank to realize heat exchange, emission of the waste steam can be decreased, a water supply water tank can exchange heat, energy is saved, environments are protected, normal work of the steam cabinet cannot be affected, and the pressure of the steam cabinet can be maintained. The waste heat recovery steam cabinet can be in a safe working state for a long time, normal work is ensured, and the steam cabinet is stable and reliable in usability, ingenious in design, excellent in performance, convenient and practical.

The invention discloses an adsorption type heat exchanger unit, which comprises a hot water adsorption type heat pump unit, a water-water heat exchanger, a primary side pipeline and a secondary side pipeline, wherein the primary side pipeline successively passes through the generator of the heat pump unit, the water-water heat exchanger and the evaporator of the heat pump unit from water supply to water return; the secondary side pipeline passes through the absorber of the heat pump unit, a condenser and the water-water heat exchanger; the heat exchanger unit also comprises a heat supply network heater; before the primary side pipeline enters the generator of the heat pump unit, the primary side pipeline firstly passes through the heat supply network heater. Compared with the prior art, the adsorption type heat exchanger unit has the characteristics that the primary side pipeline is heated by the heat supply network heater before the primary side pipeline enters a heat exchange pump unit to realize a heat supplementation function and further improve the water supply temperature of the primary side pipeline so as to improve the water supply and water return temperature difference of primary side hot water, and therefore the initial investment and operation cost of the adsorption type heat exchanger unit can be further reduced.

A water mixer, which can mix water in double directions and adjust the proportion of the mixed water in the process of heating, relates to a water mixer. The invention has the target of solving the problem of that: when an equalizer tank is installed in a heating net system, the interface is also fixed which can not be readjusted, and the proportion of the mixed water can not be changed, which is to say that the supply water temperature can not be adjusted in the process of running of the equalizer tank. An upper guide plate is arranged on the upper side of the cavity of a tube body. A lower guide plate is arranged on the lower side of the cavity of the tube body. An upper shaft is connected between the upper guide plate and the tube wall of the tube body. A lower shaft is connected between the lower guide plate and the tube wall of the tube body. The invention has the benefits that the water mixer can separately adjust the intake port water temperature of each building, which not only can satisfy the heating demands of various users, but also can reduce the overheat phenomena caused by improper regulating of the heat source, and the phenomenon of uneven cold and heat caused by different heating system design parameters between the different buildings in the same district. The invention has good water mixing effect, and can achieve a plurality of adjusting means of the heating net.

The invention belongs to the technical field of heating and ventilation air conditioners, and particularly relates to a medium and low temperature heat energy heat supply system based on heating typeabsorption-compression type heat exchange. The system comprises a medium and low temperature heat source, a heat source station, a primary net, a heat station and a secondary net which are connected in sequence; the heat source station is a first water-water heat exchanger, and the heat station is a compression type heat exchange unit or a second water-water heat exchanger; and the medium and lowtemperature heat source is medium and low temperature industrial waste heat, or medium-and-deep geothermal heat, or medium and low temperature circulating water from a solar heat collector. Accordingto the medium and low temperature heat energy carrier characteristics, the heat exchanger is reasonably configured in the medium and low temperature heat source station, the compression type heat exchange unit is reasonably configured in the heat station according to the characteristics of the heat user so that the water return temperature of a primary heat network can be greatly reduced and the primary water supply temperature can be increased, and the industrial waste heat economic heat transfer distance is greatly improved; and high-efficiency utilization of the medium and low temperature heat energy is facilitated so that a heat supply heat source support is provided for surrounding towns, and the fossil energy consumption of the heat supply system and the discharge amount of pollutants are reduced.

The invention discloses an absorptive heat exchanger unit which comprises a hot water type absorptive heat pump unit, a water-water heat exchanger and a primary side pipeline and a secondary side pipeline. The primary side pipeline sequentially passes a generator of the heat pump unit and the water-water heat exchanger from water supply to water return. The heat exchanger unit further comprises a heat supply network heater, and the primary side pipeline has to pass the heat supply network heater before entering the generator. Compared with the prior art, the absorptive heat exchanger unit has the advantages that the heat supply network heater can heat the primary side pipeline before the primary side pipeline enters the heat exchanger pump unit, heat compensation is realized, water supply temperature of the primary side pipeline can be further increased, temperature difference between supply and return of primary-side hot water is increased, and initial investment and operation cost of the absorptive heat exchanger unit can be reduced.

The invention relates to the technical field of indoor heating and ventilation, in particular to a control method of an intelligent comfortable cooling and heating household air conditioning system. The control method comprises the following steps: in a heating mode, valves of a capillary network and a ground temperature adjusting pipe network are controlled to be opened through a valve controller for heating; in a refrigerating mode, the valves of the capillary network and the ground temperature adjusting pipe network are controlled to be opened, meanwhile, water supply at the set temperature is controlled and provided through a water mixing temperature adjusting controller for cooling; when the control result of the capillary network and the ground temperature adjusting pipe network cannot meet the set requirement, a fan coil is opened in a linkage mode; and when the control result of the capillary network and the ground temperature adjusting pipe network can meet the set requirement, the temperature is controlled by controlling a proportional integral valve through the water mixing temperature adjusting controller in the heating mode, and the temperature is controlled by opening and closing the valves of the capillary network and the ground temperature adjusting pipe network in the refrigerating mode. Radiation temperature adjustment is mainly adopted, the temperature can be rapidly adjusted, the blowing feeling is reduced, and the comfort degree is improved.

The invention discloses an electric vehicle air-conditioning system using a capillary network radiation end. The electric vehicle air-conditioning system using a capillary network radiation end comprises a heat pump type refrigeration system, a battery box heat management system and a capillary network radiation end air-conditioning system, wherein the heat pump type refrigeration system comprises a heat pump type water chiller, a circulating water pump, a solenoid valve and the like; the battery box heat management system comprises a battery box, a first controller, a power battery pack, a microchannel cold plate and a temperature sensor; a temperature signal of the battery box is transmitted to the first controller, so that a control instruction is issued to a first solenoid valve and the heat pump type water chiller; the capillary network radiation end air-conditioning system comprises a second controller, a capillary network radiation end and a passenger compartment temperature sensor; and a temperature signal of a passenger compartment is transmitted to the second controller, so that a control instruction is issued to a second solenoid valve and an auxiliary electric heating system. According to the electric vehicle air-conditioning system using a capillary network radiation end disclosed by the invention, the same circulation loop is adopted, so that the heat management requirements of the battery box are met, and requirements for supplying cold for the passenger compartment in summer and supplying heat for the passenger compartment in winter are met.

Overlap super high temperature water source thermal pump comprises a low, high temperature compressor in a cabinet in which the medium outlet of evaporizer is connected with the medium inlet of the high temperature gas / liquid heat exchanger by a connecting pipe while its outlet is connected with the medium inlet of a high temperature compressor, the outlet of which is connected with the medium inlet of a condenser and the outlet of which is connected with the inlet of a high temperature electromagnetic valve, which outlet is connected with the inlet of a high temperature gas / liquid heat exchanger, the outlet of which is connected with the inlet of the high temperature expansion valve and its outlet is connected with the evaporizer, with the supplied water temperature by 70-90 deg.C..

The invention discloses application of a low-pressure cylinder zero-output technology to a heat supply unit. The application comprises the following steps that S1, a medium and low-pressure guide pipe bypass regulating valve is adjusted, and low-pressure cylinder zero output operation cannot be started unless the cooling steam flow is more than 20t / h and a low-pressure cylinder spray cooling device is placed to prevent overtemperature of a last-stage blade and a cylinder body; S2, during the low-pressure cylinder zero-output operation, a flow area with increased blade dynamic stress is rapidly avoided to reduce blade vibration stress; S3, in the process of placing the low-pressure cylinder spray cooling device, the temperature of the last-stage blade is adjusted to be 5-8 DEG C higher than the saturation temperature under corresponding steam exhaust pressure to prevent water erosion of the last-stage blade; and S4, the time for starting the low-pressure cylinder zero-output operation every time is not less than two hours, and before the low-pressure cylinder zero-output operation is quit, the water supply temperature of a heat supply network is increased, and the heat storage capacity of the heat supply network is increased, so that the stability of the water supply temperature of the heat supply network after the operation is quit is ensured.

This invention relates to a single-baffler-water mixer mixing water in two ways and adjusting proportion of water while heating, in which interfaces of return pipes of this invented heat net and users are fixed on two side walls of a pipe underside of them, the baffler is set in the cavity of the pipe and is connected with the pipe wall by a shaft, which is advantaged that water temperature of entry of each building can be adjusted separately to meet the requirements of different users to heat.

The invention relates to a control method of monitored parameters under the working condition of high-backpressure heating. By reasonably configuring steps and controlling the operation of a heating unit which can realize large-area large-flow high-backpressure circulating water, the control method solves the problems of tedious operation steps and higher implementation costs of relevant methods in the prior art, and overcomes the defect that the relevant methods are higher in investment cost and lower in economic benefit, saves less energy, and has poorer field technical innovation adaptability and safe reliability. The control method meets the needs of the actual situation.

The invention relates to a novel air conditioning system in a machine room based on underfloor air distribution and an air distribution method thereof. A cold / hot water output end of an air source cold / hot water unit is connected with the input end of a water pump. The input end of the water pump is connected with the input end of an electrically operated valve. The output end of the electrically operated valve is connected with the first input end of an air handling unit, and the first output end of the air handling unit is connected with the input end of the air source cold / hot water unit. The second output end of the air handling unit is connected with the air input end of the room through a first pipeline. The air output end of the room is connected with the second input end of the air handling unit through a second pipeline. The third input end of the air handling unit is communicated with atmosphere. An inner air distribution cabinet is placed on an elevated floor. An air distribution opening of an air distribution channel of the inner air distribution cabinet is connected with an air distribution opening of the elevated floor. According to the system, air is directly distributed to nearby computers in layers of the air distribution cabinet, so that high air distribution temperature is allowed, thereby further improving the water supply temperature of the air source cold / hot water unit, improving the energy efficiency ratio and saving the energy source.

The invention relates to the technical field of air source heat pump high-efficiency heating under multiple working conditions particularly a low-temperature environment, in particular to a device forhigh-efficiency energy heating under a low temperature condition, and a control method thereof. A low-temperature air source module is connected between an energy storage water tank and a high-temperature water source screw rod unit; the high-temperature water source screw rod unit outputs high-temperature water to an end user side; electric auxiliary heating is arranged between the high-temperature water source screw rod unit and the end user side; an end water supplement pump is arranged on the water outlet side from the energy storage water tank to an end pipe network; a low-temperature condenser of the low-temperature air source module and a high-temperature system evaporator of the high-temperature water source screw rod unit are cyclically coupled through a waterway; and the low-temperature water source module prepares low-temperature hot water used as a low-temperature heat source of the high-temperature water source screw rod unit. According to the device for high-efficiency energy heating under the low temperature condition, and the control method thereof provided by the invention, the low-temperature adaptability of the air source heat pump can be improved, and a low-temperature heating performance is improved.

The invention relates to a cascade energy utilization heat supply system under a low-load working condition and a control method thereof. The cascade energy utilization heat supply system comprises aboiler, a turbine high-pressure cylinder, a turbine medium-pressure cylinder, a turbine low-pressure cylinder, a first ejector, a second ejector, a first heat supply network heater and a second heat supply network heater. The boiler, the turbine high-pressure cylinder, the turbine medium-pressure cylinder and the turbine low-pressure cylinder sequentially communicate through pipelines. A steam outlet of the turbine medium-pressure cylinder separately communicates with a power steam inlet of the first ejector, a power steam inlet of the second ejector and the first heat supply network heater through pipelines. A steam outlet of the turbine low-pressure cylinder communicates with a low-pressure steam inlet of the first ejector through a pipeline. An outlet of the first ejector separately communicates with a low-pressure steam inlet of the second ejector and an outlet of the second ejector through pipelines. The outlet of the first ejector and the outlet of the second ejector further communicate with the second heat supply network heater through pipelines. The first heat supply network heater communicates with the second heat supply network heater through a pipeline.

The invention relates to a thermal power plant heat network energy saving system and method, and belongs to a firepower coal fired power generation heat supply unit. In the prior art, the energy consumption of a thermal network circulation pump is difficult to be obviously reduced. The system comprises a heat source side pipeline, and is characterized by also comprising a heat network heater, a primary heat network circulation water pump frequency converter, a primary heat network circulation water pump, a secondary heat network circulation water pump, a heat user pressure boosting pump, a heat user part temperature instrument and a user side pipeline, wherein the primary heat network circulation water pump is arranged on the heat source side pipeline; the secondary heat network circulation water pump, the heat user pressure boosting pump and the heat user part temperature instrument are arranged on the user side pipeline; the heat source side pipeline and the user side pipeline are connected with the heat network heater. The method provided by the invention comprises the following steps that during the system operation, the water supply temperature is raised; the primary heat network water supply and water return temperature differences are increased; the primary heat network circulation water flow rate is further reduced. The system and the method have the advantages that the energy consumption of the heat network circulation pump can be obviously reduced; the integral efficiency of a thermal power plant unit and the profits of thermoelectric enterprises are improved.

A water mixer, which can mix water in double directions and adjust the proportion of the mixed water in the process of heating, relates to a water mixer. The invention has the target of solving the problem of that: when an equalizer tank is installed in a heating net system, the interface is also fixed which can not be readjusted, and the proportion of the mixed water can not be changed, which isto say that the supply water temperature can not be adjusted in the process of running of the equalizer tank. An upper guide plate is arranged on the upper side of the cavity of a tube body. A lower guide plate is arranged on the lower side of the cavity of the tube body. An upper shaft is connected between the upper guide plate and the tube wall of the tube body. A lower shaft is connected between the lower guide plate and the tube wall of the tube body. The invention has the benefits that the water mixer can separately adjust the intake port water temperature of each building, which not only can satisfy the heating demands of various users, but also can reduce the overheat phenomena caused by improper regulating of the heat source, and the phenomenon of uneven cold and heat caused by different heating system design parameters between the different buildings in the same district. The invention has good water mixing effect, and can achieve a plurality of adjusting means of the heatingnet.

The invention belongs to the technical field of heating, ventilating and air-conditioning, and in particular relates to a medium and low temperature thermal energy heating system based on heating-up absorption-compression heat exchange, which includes sequentially connected: medium and low temperature heat source, heat source station, primary network, heat power station and secondary Secondary network; the heat source station is the first water-to-water heat exchanger, and the heat station is a compression heat exchange unit or the second water-to-water heat exchanger; the medium and low temperature heat source is medium and low temperature industrial waste heat, or medium and deep geothermal heat , or medium and low temperature circulating water from solar collectors. According to the characteristics of the medium and low temperature heat energy carrier, the present invention rationally configures the heat exchanger in the medium and low temperature heat source station, and rationally configures the compression heat exchange unit in the heat power station according to the characteristics of the heat user, which can greatly reduce the return water temperature of the primary heating network and increase the primary water supply temperature , greatly increase the economical heat transfer distance of industrial waste heat; it helps to efficiently use medium and low temperature heat energy to provide heating source support for surrounding towns, and reduce the consumption of fossil energy and the emission of pollutants in the heating system.

The invention discloses a heat pump seawater desalinating device utilizing waste heat of a power plant cooling tower. The heat pump seawater desalinating device comprises a seawater tank, a circulating pump, a steam condenser, a spray head, a filler and a fan; the fan, the spray head and the filler are sequentially arranged in the cooling tower from top to bottom; the seawater tank, the circulating pump, the steam condenser and the spray head are sequentially connected; a steam turbine exhausts gas into the condenser; the circulating pump pumps seawater from the seawater tank into the steam condenser, the seawater is sprayed out from the spray head to be fragmented into small water drops, the small water drops enter the filler, the seawater evaporates, and thus the cooling effect of the cooling tower is achieved. The power plant cooling tower uses seawater evaporation cooling to replace fresh water evaporation cooling, and fresh water resources are saved. Through a heat pump technology, steam evaporated by the seawater is collected to prepare fresh water, and ocean energy sources are utilized. A heat pump evaporator absorbs heat from steam condensation, then heats heat-supplying return water at the condenser end and supplies heat to a central heat-supplying pipe network, or heats power plant circulating water, the water supplying temperature is increased, the waste heat is fully recycled, and the energy sources are saved.

The invention provides a heat recovery system, a control method and an air conditioning unit. The heat recovery system comprises a heat recoverer, a hot water pipe is arranged in the heat recoverer, the hot water pipe is provided with a hot water outlet pipe and a hot water return pipe, a second bypass pipe is arranged between the hot water outlet pipe and the hot water return pipe, a second control valve is arranged on the second bypass pipe, the flow of the second bypass pipe and the water supply temperature of the hot water outlet pipe are adjusted through the second control valve, and the water supply temperature is in direct proportion to the opening degree of the second control valve. According to the heat recovery system, the bypass pipe is additionally arranged between the hot water outlet pipe and the hot water return pipe of the heat recoverer, part of hot water is guided into the heat recoverer again through the bypass pipe, and hot water exchanges heat with the gas refrigerant again, so that the effect of increasing the water supply temperature is achieved; when the opening of the control valve is greater, the water quantity participating in secondary heat exchange is larger, so that the water supply temperature is higher.

The invention belongs to the technical field of heat storage water tank energy application, and discloses an efficient heat storage and heat release heat storage device, a heat exchange method and application of the efficient heat storage and heat release heat storage device. Cold water and hot water in the heat storage water tank are uniformly mixed in a heat convection manner; during heat release, hot water distributed at the upper part of the heat storage water tank uniformly and slowly flows out from the upper part to be supplied to a heat utilization system, and low-temperature water after heat release is uniformly and slowly introduced into the water tank from the lower part of the heat storage water tank, so that different cold water and hot water are layered. Cold water and hot water in the water tank are rapidly and evenly mixed in a convection heat exchange mode, no obvious temperature gradient exists, the cold water and hot water mixing speed is increased, and the energy storage efficiency of the heat storage water tank is improved. According to the heat storage water tank, the good water temperature layering effect is guaranteed during heat release, the water supply temperature is relatively increased, and the heat release time is prolonged.

The invention discloses an automatic optimization energy-saving control system based on the human body thermal comfort level and people number optimization grouping. The system comprises a fresh air ventilator, an air conditioner, a fan, a variable frequency speed regulation control box, an image camera, a laser matrix multipoint temperature detector, a variable flow controller and a full-automatic control cabinet. The fresh air ventilator is provided with an air inlet temperature sensor, a fresh air cold water coil, a fresh air stepless speed regulation fan and an air outlet temperature sensor. The air conditioner is provided with a relative humidity sensor, a carbon oxide sensor, an air return temperature sensor, an air conditioner cold water coil and an air conditioner stepless speed regulation fan. The image camera is used to recognize the number of people in an area. The laser matrix multipoint temperature detector is used to detect the shell temperature of a human body. The variable flow controller is connected to the air return temperature sensor, the air conditioner cold water coil and the air conditioner stepless speed regulation fan. The full-automatic control cabinet isconnected to the air inlet temperature sensor, the fresh air cold water coil, the fresh air stepless speed regulation fan, the air outlet temperature sensor, the relative humidity sensor, the carbon oxide sensor, the variable frequency speed regulation control box, the image camera, the laser matrix multipoint temperature detector and the variable flow controller.

The invention discloses a water mixing device of a water distributing and collecting device. The water mixing device is characterized in that an electric three-way regulating valve, a circulating water pump and a water temperature sensor are arranged on a water supply pipeline where a cooling and heating water inlet pipe is connected with a water distributor, a three-way pipe and an electric stop valve are arranged on a water return pipeline where a water collector is connected with a cooling and heating water outlet pipe, and the three-way pipe is combined with a water return branch pipe for connecting return water on the water return pipeline into the electric three-way regulating valve; and the water mixing device further comprises an indoor dew point temperature probe, an indoor temperature sensor, a temperature control panel, an electric three-way regulating valve, a circulating water pump, a water temperature sensor and an electric stop valve, wherein the indoor dew point temperature probe and the indoor temperature sensor are electrically connected with the temperature control panel. Meanwhile, the invention further discloses a control method of the water mixing device. The water mixing device is simple in structure and stable in operation, the water mixing device is arranged at the radiation tail end of a fresh air conditioning system and can be directly connected into a conventional air conditioning water system, condensation caused by too low water supply temperature in summer can be avoided, and the situation that the service life of components and radiant tubes is affected by too high water supply temperature in winter can be prevented.

The invention discloses an air energy water heater capable of achieving rapid defrosting and stable water temperature and a using method.The air energy water heater comprises a refrigerant loop, a water control loop and a frequency conversion controller, the structures and pipe network layout of the refrigerant loop and the water control loop are simpler, switching control over working modes is convenient, the functions are comprehensive, and the water temperature is stable. The switching control of circulating heating, return water heating and constant-temperature and constant-pressure water supply can be realized only by controlling the four-way valve, so that the simplicity of the control system is realized, and the stability of water supply temperature and pressure can be effectively improved on the basis of greatly simplifying the system structure, hardware cost and energy consumption cost. According to the method, whether the copper pipe is frosted or not and the frosting degree can be accurately and reliably predicted, and a basis is provided for optimization control of subsequent defrosting. Vibration defrosting, thermal expansion defrosting and hot defrosting are organically combined, the defrosting effect can be effectively improved, the defrosting process is accelerated, and the overall performance of the air energy water heater is improved.

The present invention provides cold volume governing system for regionally concentrated cold supply second-stage cold volume exchange station, including a second-stage cold volume exchange station controller and a remote, local supervisory computer respectively connecting to the converter. The second-stage cold volume exchange station controller is connected with a cold architecture cold-supplying pipe net supply water temperature sensor, a return water temperature sensor, a frequency conversion cycle water pump, a backwater-supplying differential pressure transducer and an outdoor environment humiture sensor through the analog quantity input module, and connected with the cold architecture cold-supplying pipe net frequency conversion cycle water pump through the digital quantity input module, an analog quantity, a digital quantity output module, also connected with the second-stage cold volume exchange station plate exchanger secondary side backwater flow control valve and the by-pass control valve through the analog quantity input, the output module. The invention can greatly advance the cold architecture freeze supply water temperature and the second-stage cold volume exchange station plate exchanger secondary side backwater temperature, which has good energy saving effect and good popularizing applied cost.