3470 results about "Air source heat pumps" patented technology

A heat pump heat pump system, operating with an R-410A refrigerant, comprised of at least one of an air source heat pump system, a water source heat pump system, and a direct expansion heat pump system, preferably for use in a Deep Well Direct Expansion heat pump system, which incorporates a three-mode receiver and an interior air handler, with at least one fan, with such air handler comprised of a combination of two sets of refrigerant to air heat exchange tubing/interior air heat exchange means, with by-pass lines and solenoid valves to facilitate system operation in the desired operational mode, all enabling optimum system performance in one of the desired heating mode, cooling mode, and dehumidification mode of system operation, as controlled by at least one of a thermostat/humidistat.

The invention discloses an efficient direct-expansion solar heat pump and water source heat pump coupled heat supplying system. The system is characterized in that the angle of a solar heat collector is adjusted in real time through a full-automatic solar tracking device, therefore, sunlight vertically irradiates the solar heat collector, and maximum solar radiation energy is achieved; by arranging a phase change heat storage device on a direct-expansion solar heat pump system, the evaporating temperature of a refrigerating agent is kept within a certain range, and then influences of changes of the solar radiation intensity to the system stability are greatly reduced; solar energy is stored through a heat storage water tank, intermediate water is preheated through the heat storage water tank, therefore, heat obtained through the direct-expansion solar heat pump system is effectively transmitted to a user, and then effective coupling of a solar heat collection and heat storage technology and a water source heat pump is completed. The efficient direct-expansion solar heat pump and water source heat pump coupled heat supplying system has the advantages that the problems of intermittency and unstability of solar energy sources are effectively solved, it is guaranteed that the system can stably supply energy, the system performance is significantly improved, and high efficiency and environmental friendliness are achieved.

The invention relates to a non-resistance pressure balance anti-resistance device of heat pump of ground water, and relative system, wherein the outer frame (1) of anti-resistance device has external water inlet (6) and external water outlet (7); the rotation filter cylinder (3) is inside the outer frame (1); the rotation filter cylinder (3) is divided into internal water inlet area (4-1) and internal water outlet area (4-2); the internal water inlet area (4-1) is connected to the internal water inlet area outlet (8) and the internal water outlet area (4-2) is connected to the internal water outlet area inlet (9). The invention has stable water pressure and stable flux, with small size and low cost.

The invention discloses a bulk curer heat supply and ventilation system supplied by combined solar energy-air source heat pump double heat sources, which consists of a solar water heating subsystem, an air source heat pump water heating subsystem, an air-water heat exchanger, a frequency conversion circulating water pump, a heat insulating hot water pipeline, a main controller, a circulating fan, an air supply pipe, a fresh air valve and a curer wet air outlet. A condenser of the air source heat pump water heating subsystem is arranged in a heat accumulating water tank; the air source heat pump water heating subsystem is coupled with the solar water heating subsystem through the heat accumulating water tank; and the air source heat pump water heating subsystem adopts a CO2 high temperature refrigerant to prepare high temperature hot water between 85 and 90DEG C. The bulk curer heat supply and ventilation system adopts the solar water heating system and the air source heat pump water heating system, which are combined to operate, to supply heat to the curer, fully utilizes the clean solar energy and low-grade heat energy in the atmosphere, has the advantages of energy conservation, environmental protection and the like, and can realize loss minimization and value addition in the process of curing tobacco leaves.

The invention relates to a flue gas total-heat recovery device of a gas boiler, belonging to the thermotechnical field. In the invention, the temperature of the flue gas exhausted by the gas boiler can be reduced to lower than 40 DEG C by a gas-water heat exchanger and a mixing cooler, then the cooled flue gas is directly supplied for an air-source heat pump water heater for generating the hot water, and the sensible heat and the latent heat in the flue gas can be totally recovered. Most CO2 and NOx in the flue gas can be absorbed by condensed water in the cooling process, thereby reducing the emission of harmful gas. The device comprises the gas-water heat exchanger, the mixing cooler and the heat pump water heater and is characterized in that the flue gas at 150-200 DEG C is cooled to lower than 90 DEG C by the gas-water heat exchanger and then can be cooled to lower than 40 DEG C in the mixing cooler, and the cooled flue gas can serve as heat source to directly enter an evaporator of the air-source heat pump water heater for heat exchange. The invention solves the problems of frosting and low efficiency of the air-source heat pump water heater due to low temperature in winter in the North while recovering the residual heat of the flue gas of the gas boiler at the same time; meanwhile, the emission of the harmful gas in the flue gas of the gas boiler can be reduced, thereby realizing energy saving and emission reduction.

A heat pump dehumidification system comprised of one of an air source heat pump system, a water source heat pump system, and a direct expansion heat pump system, with an extra interior air heat exchange means situated between the system's compressor's hot refrigerant gas discharge side and the exterior heat exchange means, for activation and use in conjunction with the system's primary interior air heat exchange means, located between the exterior heat exchange means and the system's compressor's refrigerant gas suction side, when operation in a dehumidification mode is desired absent sensible cooling, and optimum design sizes for both interior air exchange means while the system is operating in one of a dehumidification mode, a cooling mode, and a heating mode.

The invention discloses an electric car air conditioning system with an air source heat pump. The electric car air conditioning system has a refrigerating mode, a conventional heating mode, a low-temperature heating mode and a defrosting mode in an electric car, and a main loop of the air conditioning system comprises a compressor, an indoor condenser arranged on an outlet pipeline of the compressor, an indoor evaporator arranged on an air return pipeline of the compressor, an outdoor heat exchanger arranged on a pipeline between the indoor condenser and the indoor evaporator, a first valve arranged between the indoor condenser and the outdoor heat exchanger, a second three-way valve arranged between the outdoor heat exchanger and the indoor evaporator, and a first throttling device arranged between the second three-way valve and an inlet of the indoor evaporator. A by path of the second three-way valve is connected with an inlet of the compressor. In the low-temperature heating mode of the air conditioning system, a middle air supplementing system operates, and the electric car air conditioning system has the advantages of being reliable in operation, high in heating capacity, high in heating efficiency and the like.

The invention discloses a self-balancing integrated application system of a solar energy-ground source heat pump, comprising an air conditioner end system, a ground source heat pump system, a hot water supply system, a solar energy heat-collection system and an automatic control system, wherein the ground source heat pump system comprises a ground buried pipe heat exchanger (6), a compressor (1),an indoor side heat exchanger (3) and an environment side heat exchanger (5), and the automatic control system is used for controlling all the automatic equipment in the self-balancing integrated application system of the solar energy-ground source heat pump. The invention can effectively realize the functions of cold and warm air conditioning and hot water supply, mainly can switch the working modes of the ground source heat pump and a solar energy hot water system automatically by the control system, thereby solving the problem of imbalance of the ground source heat pump in winter and summerand enhancing the utilization rate of regenerative energy (solar energy and geothermal energy) in energy used for construction to the maximum.

The invention provides a heat tower heat pump, mainly consisting of a cold/heat source absorption device closed heat tower and a low-temperature heat tower elevating device low-temperature heat source heat pump. The invention can be used as an efficient water evaporation cooling device in summer and an efficient broadband frost-free air source heat pump in winter, realizing cooling in summer and heating in winter, capable of supplying hot water for households; thereby the invention can be used for the three purposes.

A composite energy system of solar energy, ground source heat pump and chilled water storage comprises an air conditioner, a domestic hot water supply device, one or more device (hereinafter referred to as host) of a solar energy heat-collecting device, a heat storage water tank unit, a cold storage water tank unit and a ground source heat pump system, a ground heat exchanger, an auxiliary heating device, a circulating water pump, a first electric three-way valve, a second electric three-way valve, a first electric two-way valve and a second electric two-way valve, wherein the circulating water pump is communicated with the air conditioner, and the auxiliary heating device is communicated with the domestic hot water supply device. The invention fully utilizes renewable energy sources such as solar energy, geothermal energy and biomass energy to masterly combine the ground source heat pump air-conditioning system with the solar energy hot water system and the chilled water storage system and construct a comprehensive energy system combined by the domestic hot water system, the ground source heat pump, the chilled water storage air-conditioning system and the like; and the invention is completely combined with the entire building so as to greatest reduce the floor space and the investment and increase the energy efficiency and economic performance of the system.

The invention discloses an air source heat pump ultrasonic defrosting system, which relates to the defrosting system of the products such as household and commercial air source heat pump, etc. The invention comprises a compressor, a four-way valve, an indoor heat exchanger, a heating cone-way valve, a heating expansion valve, a refrigeration cone-way valve, a refrigeration expansion valve, an outdoor heat interchanger, and an air-fluid separator, wherein, the four-way valve is respectively connected with the compressor, the indoor heat exchanger, the outdoor heat interchanger and the air-fluid separator, the indoor heat exchanger is connected with the heating cone-way valve and the heating expansion valve, the heating cone-way valve and the heating expansion valve are connected with one end of the refrigeration cone-way valve and the refrigeration expansion valve through a pipeline, and the other ends of the refrigeration cone-way valve and the refrigeration expansion valve are connected with the outdoor heat interchanger. The invention is characterized in that an ultrasonic launcher and a temperature sensor are respectively arranged on the outdoor heat interchanger, and the ultrasonic launcher is connected with the temperature sensor through a controller. The invention realizes the purposes of improving the defrosting speed, reducing the energy consumption of the defrosting, and improving the operation efficiency of the heat pump.

The invention is a kind of system integrated by three casing pipe solar energy with energy storage and air-source heat pump, it relates to a kind of integrated system of heat pump. The aim of the invention is to settle the problem of application of air-source heat pump which makes network load rise gradually, ability of supplying heating of heat pump in winter and demanding of load of buildings not in-phase and makes efficiency of solar heat pump's collection low in the central air-conditioning system, at the same time, the cost is higher and it is often influenced by the weather. Intake of the first energy storage heat exchanger, Intake of the second energy storage heat exchanger and intake of the third energy storage heat exchanger connect with the second pipeline separately. The invention realizes electrical load's peak shifting and valley filling , balances heat pump heat-supplying load day and night in winter, adopts the running pattern of multiple heat sources which include air source, solar power and heat storage source, makes up for existing scarcity when single heat source runs, the air-condition can work at full load as much as possible. The invention can realize 5 kinds of operation patterns in summer and 4 kinds in winter.

The invention relates to an air source heat pump water heater unit, and particularly to an air source heat pump water heater unit with a phase change heat accumulator. An air source heat pump water heater unit with phase change heat accumulation is provided, which comprises a scroll compressor, an oil separator, a plurality of gas-liquid separators, a four-way reversing valve, a plurality of electromagnetic valves, a plurality of check valves, a double-pipe condenser, a water tank, a phase change heat accumulator, an evaporator, a dry filter, a liquid sight glass, and a plurality of thermal expansion valves, wherein the scroll compressor is provided with an air suction port, an air supplement port and an air exhaust port, the air suction port is connected with the evaporator via a pipeline, the air supplement port is connected with the phase change heat accumulator via a pipeline, and the air exhaust port is connected with the double-pipe condenser via a pipeline. Even if in a low-temperature environment (of lower than minus 25 DEG C), because the phase change heat accumulator is used as an auxiliary evaporator for the system, for providing heat to the system and supplementing air to the compressor, thus increasing the air input of the compressor, optimizing the running working condition of the compressor, and ensuring the stable and safe low-temperature running of the compressor.

The invention discloses an energy-saving optimized control method of a water source heat pump, which comprises the following steps of: collecting data actually measured during the operation of the water source heat pump through a PID (Proportion Integration Differentiation) local control module; calculating the integrated energy consumption of a system by using a water source heat pump machine set model, a load side water pump model and a water source side water pump model; determining the optimum operation strategy of the system through the gradient optimization algorithm, such as the heat pump machine set starting number, the water pump speed change operation parameters and the like; and regulating the operation parameters of the water source heat pump system through a DDC (Direct Digital Controller) according to the determined energy-saving optimized operation strategy (the optimum combination of controllable operation parameters) to achieve the goal of minimum total operation energy consumption of the system.

The invention relates to an air source heat pump phase change energy storage defrosting system with super cooling action. When the existing defrosting mode is used for defrosting by an air source heat pump unit, no low level heat source exists during the defrosting process, thus leading to the problems that the defrosting energy source is insufficient and the defrosting time is longer. Pipelines are used for connection between a compressor and a four-way reversing valve, between the compressor and a gas-liquid separator, between the gas-liquid separator and the four-way reversing valve, between the four-way reversing valve and an outdoor heat exchanger, between the outdoor heat exchanger and a capillary tube, between the capillary tube and a device for drying and filtering, between the device for drying and filtering and an indoor heat exchanger, and between the indoor heat exchanger and the four-way reversing valve respectively; and an energy storage heat exchanger is arranged on the pipeline between the device for drying and filtering and the indoor heat exchanger. In the invention, the supercooling is finished by a refrigerant and the phase change material uses the refrigerant to store afterheat, thus improving the performance of the unit, realizing the planeshift of energy, and providing sufficient low level heat source for defrosting.

The invention discloses a frost-less air-source heat pump hot water unit and a proportional-integral-differential control method for the same. The proportional-integral-differential control method includes performing computation according to received air temperature and humidity parameters, received air pressure parameters and received surface temperature parameters of an evaporator when outdoor temperature parameters which are transmitted by a temperature and humidity sensor and are received by a computation controller are lower than 0 DEG C, controlling the opening of an electronic expansion valve according to a computation result and regulating the surface temperature of the evaporator by means of increasing or reducing the opening of the electronic expansion valve so that the surface temperature of the evaporator is constantly higher than a frost formation point; and enabling a silicon-controlled power regulator to judge a suction superheat degree of a compressor according to received suction temperature and suction pressure of the compressor, increasing or reducing the power of an electric heater and maintaining that the suction superheat degree of the compressor only varies within a set value range. The frost-less air-source heat pump hot water unit and the proportional-integral-differential control method have the advantage that adjustment for the opening of the electronic expansion valve is matched with adjustment for the power of the electronic heater, so that the purpose of maintaining safe and efficient running of a system is achieved.

The invention discloses a phase change thermal storage type auxiliary solar hot-water device of an air source heat pump, comprising an indoor air cooled heat exchanger, an outdoor air cooled heat exchanger and a rotator compressor, wherein the outdoor air cooled heat exchanger is connected with the indoor air cooled heat exchanger respectively through a four-way reversing valve and an expansion valve; the rotator compressor is connected with the four-way reversing valve in parallel; the indoor air cooled heat exchanger is connected with a water cool tube heat exchanger; and the outdoor air cooled heat exchanger is connected with a phase change thermal accumulator in parallel. The device of the invention can carry out phase change energy storage when solar radiation is overmuch in summer, thereby avoiding over high water temperature to exceed use requirement, sever water tank heat dissipation and other drawbacks, and when the solar radiation is in short, heat supplement is carried out through phase change to release energy, and an air source heat pump is used to assist heating in necessity.

The invention discloses a fault diagnosis method based on multi-sensor signal analysis. Pressure, temperature, flow and other parameters of a heat pump unit in the operation process are acquired by utilizing multiple sensors, and vibration signals of the unit are acquired by utilizing a vibration sensor so that the equipment state of the air source heat pump unit can be comprehensively mastered. Multiple intelligent technical methods are combined on the basis, and respective advantages of the intelligent technologies are comprehensively applied to perform state monitoring, fault diagnosis and intelligent indication on the air source heat pump unit through enhancing advantages and avoiding disadvantages so that sensitivity and accuracy of a monitoring and diagnosis system can be effectively enhanced and misdiagnosis rate and missed diagnosis rate can be reduced. Meanwhile, a use-facilitating signal processing platform is designed by adopting a GUI design method based on the MATLAB language. An accurate diagnosis decision is provided for general operation personnel without understanding system mechanism or analyzing data.

The invention discloses a gas-driven air source heat pump heat supply unit for a central heating system. The gas-driven air source heat pump heat supply unit for the central heating system comprises an internal combustion engine. The internal combustion engine, a compressor, a condenser and a flue gas waste heat recoverer are connected in sequence, so that a gas-heating hot water system is formed. The condenser is further connected with a first evaporator which is connected back to the compressor, so that an air source heat pump refrigerant system is formed. The flue gas waste heat recoverer is arranged on a flue gas pipeline of the internal combustion engine. A water outlet pipeline of the flue gas waste heat recoverer is connected with a water supply pipeline of a heat supply system, and the heat supply system supplies circulating high-temperature water to users. The internal combustion engine is adopted to drive a heat pump to pump heat in air, then waste heat continues to be applied to the heat supply system, the integral heat energy conversion rate can be 200%, and the heat energy conversion rate is high. The outlet water temperature of the condenser can be 60 DEG C or over by increasing the condensation pressure, water discharged out of the condenser further absorbs flue gas heat through the flue gas waste heat recoverer arranged on the exhaust pipeline of the internal combustion engine, and the water supply temperature can be up to 85 DEG C.

The invention discloses a solar and GSHP (ground source heat pump) combined energy supply system for buildings. The sytsem provided by the invention comprises two subsystems, namely a solar and auxiliary GSHP system and a pure GSHP system, wherein the solar and auxiliary GSHP system comprises a solar thermal collector, a thermal storage water tank, a GSHP unit No.1, a ground heat exchanger No.1, a collected heat circulating water pump, a unit ground source collateral circulation water pump No.1, a unit user collateral circulation water pump No.1, indoor end equipment, a collected heat controlvalve, a heat accumulation control valve, solar supply heat control valves No.1 and No.2, a unit ground source collateral control valve No.1, a unit user collateral control valve No.1, heat accumulation/heat supply operational mode switch control valves No.1-No.4 and a connecting line; the pure GSHP system comprises a GSHP unit No.2, a ground heat exchanger No.2, a unit ground source collateral circulation water pump No.2, a unit user collateral circulation water pump No.2, indoor end equipment, a unit ground source collateral control valve No.2, a unit user collateral control valve No.2 and a connecting line.

The invention discloses a multi-purpose solar energy-air source heat pump cycling dehumidification curing barn. The curing barn comprises a curing barn, a control mechanism, a heat pump heat absorption mechanism and a dehumidification mechanism, wherein the curing barn is divided into a solar energy heat collection chamber, a drying chamber and a heating chamber through an upper baffle plate and partition walls; a cycle exhaust outlet is formed on the upper baffle plate of the curing barn; a solar energy heat collecting plate is arranged in the solar energy heat collection chamber; a condenser and a second evaporator are mounted on the partition walls; a circulating fan is connected with the part of the condenser in the drying chamber; a small circulating fan is mounted on the partition wall between the solar energy heat collection chamber and the heating chamber; one end of the compressor of the heat pump heat absorption mechanism is communicated with one end of the condenser, and a first evaporator branch circuit and a second evaporator branch circuit are parallelly connected between the other end of the compressor and the other end of the condenser; and the control mechanism is used for controlling the working state of the compressor, the blower and the evaporator. Due to the adoption of the curing barn provided by the invention, the problem that the solar energy is unstable is overcome, the continuity of the drying process is ensured, the utilization rate of solar energy is further improved, and the degree of automation is high.

A solar-air source energy storage type solution thermal pumping device is a method and a device for realizing the method, and the method is solar-air source energy storage type solution thermal pumping for refrigeration and heat-production on the basis of refrigerating with cool water in summer and absorbing heat from air with solution in winter and by means of taking advantages of solar energy. The device comprises a refrigerant circulation loop, a solution circulation loop and an air circulation loop, and is composed of main members of a cold and hot water unit, a cooling tower, a solar heat collector, a solution regenerator, a concentrated solution storage device, a dilute solution storage device and the like. In summer, the device can realize water-cooled water chilling unit function, absorb heat by evaporation in the cooling tower with cooling water, cooling agent of the water chilling unit prepares cold water, in winter, solution is used to exchange heat with air in the cooling tower, heat is absorbed for the unit to prepare hot water, thereby radically resolving inescapable frost produced when existing air source heat pump operates to produce heat in winter, and increasing performance coefficient and heat supply efficiency.