260 results about "Heating season" patented technology

The invention relates to a heat quantity apportionment measuring method and a device for central heating. In the method, aiming at a heating system of a switching-on/switching-off type heat supply control mode, the apportionment measurement of the heating heat consumption is carried out according to a switching-on/switching-off time area method, modification with the time is carried out on the opening time of a switching-on/switching-off valve according to an built-in special modification computation program by the real-time measurement of the water supply and return water temperature values of heating users, and accumulation is carried out to calculate a modified opening specific value; when the heating season is over, the final modified opening ratio and the heating area of each user are used for apportioning the total heat quantity to determine heating charge which needs to be charged by each user; and the special modification computation program is designed in such a way that under the opening state of the switching-on/switching-off control valve, the water supply temperature value and the return water temperature value are read, the modified opening ratio is calculated, so the apportionment of the heat quantity used by the users is calculated. The device is suitable for the heat quantity apportionment measuring method for central heating and comprises a room temperature controller, the switching-on/switching-off control valve, a water supply temperature sensor, a return water temperature sensor, a heat supply control/opening time modification integrating instrument and the special modification computation program.

The invention teaches a system and method for reducing energy consumption in commercial buildings. The invention provides development of certain mechanical heat profiles and use of such profiles in an automated optimization method. Outputs communicate with the building management system of the commercial building, and regulate the heating system during a season when the building activates the heating system. Various embodiments are taught.

The invention is applicable to fields of air conditioners and provides a combined multi-source earth-energy central air-conditioning unit. The central air-conditioning unit comprises a primary heat exchanger, a secondary heat exchanger and a heat recovery system which are connected with other parts of a central air conditioner through pipes, wherein the primary heat exchanger, the secondary heat exchanger and the heat recovery system are serially connected through pipes. With the technical proposal, the central air-conditioning unit can use earth source and air source as cold and heat sources and uses the primary heat exchanger and the secondary heat exchanger to achieve a double cooling effect in cooling seasons and uses only the secondary heat exchanger in warming seasons with higher heat exchange efficiency, thereby overcoming the problem of limitation in the use of cold and heat sources and low heat exchange efficiency of earth source heat and air source heat pumps in the prior art. The central air-conditioning unit is also provided with a heat-recovery heat exchanger, so as to enable a user to make hot water for daily use during use of the air conditioner and bring great convenience in use of hot water in daily life.

The invention discloses an energy-saving full-function refrigeration cycle system, which consists of an indoor unit and an outdoor unit, wherein the outdoor unit comprises a compressor, an outdoor heat exchanger, a heating expansion valve, a check valve, a heating dry filter, a liquid receiver, a vapor-liquid separator and a pipe joint; and the indoor unit comprises a blower, an electromagnet valve B, an electromagnetic valve A, a refrigerating dry filter, a refrigerating expansion valve B, a check valve B, an indoor heat exchanger B, a check valve A, a refrigerating expansion valve A, an indoor heat exchanger A, an electromagnetic valve C, and a four-way reversing valve. The refrigeration cycle system can meet the requirement of control precision defined by the national standard under the condition of energy-saving operation. The refrigeration cycle system can greatly save heating energy consumption through the energy-saving operation of partial working condition, improve the energy-efficiency ratio in a heating season and annual performance coefficient, and has important practical value.

The embodiments of the invention disclose an air conditioner control method and an air conditioner, and relates to the technical field of air conditioners. An operating mode can be automatically determined from a professional perspective, the purposes of energy saving and health keeping are achieved, and the comfort of the air conditioner is improved. According to the specific scheme, the currenttemperature and current relative humidity of an indoor environment are detected; and if the current temperature and current relative humidity meet preset conditions, the current operating mode is switched to a target mode, the current operating mode and the target mode are both operation modes included in current season, the current season is any of the cooling season, the heating season and the rainy season, and the air conditioner is controlled to operate according to the target mode. The air conditioner control method disclosed by the embodiments of the invention is used in an intelligent control process of the air conditioner.

The invention relates to an air conditioner and provides a method for calculating the pipeline vibration fatigue life of a frequency conversion air conditioner. The working conditions of the frequency conversion air conditioner in the refrigerating season and the heating season every year and actual contributions of all frequency points to pipeline vibration need to be combined to estimate the pipeline vibration fatigue life of the frequency conversion air conditioner. The average operating frequency of the frequency conversion air conditioner is calculated through weighting, the working conditions of the frequency conversion air conditioner and the weights of all operating frequency points are determined, fatigue damage of pipelines of the frequency conversion air conditioner in a starting state, an operating state and a halt state within a year is calculated according to fatigue features of pipeline materials and tested vibration maximum stress values at all the frequency points, and the pipeline system vibration fatigue life of the frequency conversion air conditioner is calculated through accumulation of the fatigue damage. The method is suitable for the frequency conversion air conditioner.

The invention provides a seasonal heat storage and heating system and a heating method of the seasonal heat storage and heating system and relates to the technical field of heat storage and heat supply. The heat storage and heating system comprises a solar heat collector, a buffer water tank, a first heat exchanger, a second heat exchanger and an underground heat storage system. The solar heat collector heats water in the buffer water tank through the first heat exchanger. The underground heat storage system comprises a heat storage pool and first heat exchange coil pipes, all of which are buried in the ground. The first heat exchange coil pipes are arranged around the heat storage pool. The second heat exchanger communicates with the first heat exchange coil pipes through the heat storage pool and used for heating a heat storage medium in the heat storage pool and heating soil around the heat storage pool. By the adoption of the seasonable heat storage and heating system and the heating method, solar heat in the non-heating season is stored through the heat storage pool, the soil around the heat storage pool is heated through the first heat exchange coil pipes arranged around the heat storage pool, and the heat storage of the soil around the heat storage pool is used effectively; and furthermore, heat emitted by the heat storage pool can be used for the second time due to the arrangement of the first heat exchange coil pipes around the heat storage pool, and the system efficiency is provided.

The invention belongs to the field of seasonal energy accumulation heating, and particularly relates to a seasonal solar energy-phase change energy accumulation graded energy-releasing heating system and method. The system mainly comprises a solar heat collector, a phase change energy accumulation heat exchanger, a heating module and a heat exchanger, all of which are connected together through a pipeline, a valve and a circulating pump. According to the system, in non-heating season, solar heat is stored in phase change materials with different temperature levels capable of realizing stable undercooling, so as to stand in an undercooling liquid state; in heating season, two modes, namely, heating load supply by direct heat exchange between heating medium water and the heat collector and heating load supply by direct heat exchange between the heating medium water and the phase change heat exchanger, can be adopted and the phase change material units with different temperature levels are triggered by grades to be solidified and release energy according to loads in different stages. By utilizing the conception that the seasonal phase change energy accumulation graded released energy is utilized to provide heating load in winter, the system has the characteristics of being large in phase change latent heat, stable in heat release temperature, capable of being adjusted by grades, and the like, thus having wide application prospects in a seasonal heat accumulation heat supply system.

A circulating water-cooled plant factory LED (light-emitting diode) surface light source heat dissipation management system and method. The system comprises an LED panel heat dissipation device, a controller, a temperature measuring instrument, a heat energy replacement system and a water channel circulating system, the LED panel heat dissipation device is mounted at the back of a lamp panel, the temperature measuring instrument is mounted on a pipeline of the water channel circulating system entering and exiting the heat dissipation device, the water channel circulating system penetrates the heat dissipation device, the temperature measuring instrument acquires the temperature of inlet and outlet water passing the heat dissipation device, and the controller calculates heat in a replacement water channel of the heat energy replacement system according to the temperature of the inlet and outlet water and controls the rotating speed of a radiator fan to perform heat dissipation. Heat energy generated by LEDs can be timely dissipated, the light-emitting efficiency of the LEDs is ensured, and light attenuation rate is reduced. Besides, the heat energy dissipated from the LEDs can be used for heating the indoor environment of a plant factory in heating seasons, the heat energy is timely discharged from the indoor environment in non-heating seasons, and energy consumption for cooling in the non-heating seasons is reduced.

The invention relates to a solar energy water heater afterheat comprehensive using device which can maximize the using of the afterheat and realizes the indoor heating and temperature difference powergeneration function through a simple and direct circulating pipeline. In the heating season, the device firstly supplies heating to a bathroom and a bedroom; in other seasons, the afterheat is mainlyused for temperature difference power generation and hot water circulates and returns into the solar energy water heater to be heated again. The whole circulation system is controlled by an electronic self-control device and does not need to be operated manually. In addition, the system is simple and easy to be modified, has strong reliability, high energy utilization efficiency, lower cost and very strong practicability and excellent market development prospect.

The invention provides an analysis method for comprehensive energy consumption of an air conditioning system in a non-heating season. The method comprises the following steps of a meteorological parameter setting step used for setting an indoor meteorological parameter according to a position where the air conditioning system is located; a computation model building and a boundary condition setting step used for determining a computation model and a boundary condition according to a place where the air conditioning system runs; and a comprehensive energy consumption computation step used for computing the comprehensive energy consumption of the air conditioning system by using a formula: FORMULA, according to an annual air-conditioner overall cooling load of the computation model. According to the energy consumption computation method for the air conditioning system in the non-heating season provided by the invention, computation of the energy consumption of the air conditioning system is more accurate, specific computation modes for refrigeration energy consumption, air system transmission energy consumption and water system transmission energy consumption are particularly provided, so that the different air conditioning systems can be provided for different building types of different cities and the air conditioning systems and operation modes can be improved, and thus energy consumption of the air conditioning system can be reduced.

The invention relates to a multi-energy-complementary heating and heat supply system of a nearly zero energy consumption building in an alpine region. The solar energy is combined with building foundation storage energy storage to achieve heating in winter, and the solar energy is combined with an air source heat pump to achieve domestic hot water supply. The multi-energy-complementary heating and heat supply system comprises a solar thermal collector, a heat storage coil, a heat-preservation foundation heat storage layer, a plate heat exchanger, warm air blowers, the air source heat pump, a hot water tank and the like. In non-heating seasons, the solar thermal collector is used for heating domestic water which is then stored in the water tank, and the air source heat pump is used for auxiliary heating if heat energy is insufficient. In heating seasons, part of hot water flows into the heat storage coil to be stored for standby use or to be used for supplying heat to the interior of a room through the warm air blowers, and the other part of the hot water flows into the plate heat exchanger to heat domestic water. When solar radiation is weak, the hot water flows from the building foundation heat storage layer into the warm air blowers to supply heat to the interior of the room, and the air source heat pump operates in daytime with the high temperature to heat domestic water which is then stored for standby use. According to the multi-energy-complementary heating and heat supply system of the nearly zero energy consumption building in the alpine region, renewable energy sources are utilized for multi-energy complementation to achieve heating and domestic heat supply of the alpine region in winter, and nearly zero energy consumption operation of the building can be achieved.

The invention provides a data room heat discharge and waste heat utilization system employing cabinet-level heat pipes. The data room heat discharge and waste heat utilization system employing cabinet-level heat pipes includes a cabinet-level heat pipe system, a water source heat pump system, a user end, and a cold source system, wherein the cabinet-level heat pipe system includes at least one heat discharge end and a plurality of heat-absorbing ends; the heat discharge end is arranged outside the data room, and each heat-absorbing end is arranged on the back panel of each cabinet; the water source heat pump system comprises an evaporator, a condenser, a compressor and a throttle valve; and the cabinet-level heat pipe system is connected with the water source heat pump system, can realizedata room heat discharge and building heating in the heating season at the same time, and is also connected with the cold source system to meet the heat discharge requirement for the data room in thenon-heating season. The data room heat discharge and waste heat utilization system employing cabinet-level heat pipes combines the heat pipe system with the heat pump system, thus being able to realize efficient heat discharge of the data room, being able to utilize the large amount of waste heat generated from the data room to heat a building, and having the advantages of being energy saving, being environmentally friendly, and being economical and practical.

The invention relates to a peak regulation energy storage system for a condensed steam type turbine unit and an operation adjusting method of the peak regulation energy storage system. By means of the optical axis rotor technology, steam is extracted to be used for supplying heat, so that electrical loads of the unit are reduced; and then a heat storing and releasing system is arranged, the functions of peak clipping and valley filling of the system are utilized, and on the premise of meeting heat loads in the heating season, the electrical loads of the unit are reduced to the minimum. The electricity and heat contradiction within the heating period in the northern area can be relieved, flexibility and elasticity of power grid dispatching are improved, and the system is suitable for being vigorously popularized.

The invention relates to a method for regulating critical zero differential pressure state of a distributed water pump variable flow heat supply system, belonging to a method for regulating the critical zero differential pressure state of the water pump variable flow heat supply system and solving the problems of difficult realization on the maintenance of critical zero differential pressure state of the whole heating season, low system stability, difficult tracing measurement of critical zero differential pressure point, no determined index for main circulating pump regulation, weak system interference resistance capacity and long transition time of a regulating system. The method comprises the steps of: regulating a water supply temperature of a heat source by a heat source controller; regulating a near-end heating power station: meeting the demand on a secondary side user through a rotating speed regulating variable of a heat supply network circulating pump, wherein the rotating speed regulating variable is obtained from a near-end heating station controller; and regulating a heating power station with a pressurizing pump: obtaining the rotating speed regulating variable of the pressurizing pump of the user through the heating power station controller with the pressurizing pump, and meeting the demand on the secondary side user in the heating power station with the pressurizing pump. The method is used for regulating the critical zero differential pressure state of the heat supply system.

The present invention discloses a building-type combined cooling heating and power system power device selection method. The method comprises the steps of carrying out dynamic simulation of cooling and heating loads on a target building by using a building CAD drawing in Dest software, thus to obtain full-year cooling and heating load requirements; calculating cooling and heating average daily loads, thus to calculate economic cost and primary energy consumption; calculating average days of a cooling season and a heating season individually, and multiplying the cooling and heating average daily loads by the corresponding days, thus to obtain full-year operation energy consumption and cost situations; and calculating system performance evaluation indexes to different schemes, and determining an ultimate installation model selection result according to performance evaluation optimization. The method is simple, rapid, good in accuracy and capable of comprehensively considering factors at multiple respects; the method can serve as a supplement for a selection method of ordering power by heat; and the method is applicable to a building-type combined cooling heating and power system and also applicable to a regional-type combined cooling heating and power system.

Embodiments of the invention disclose an efficient numerical simulation method and device for an urban scale geothermal field group well system. The method comprises the steps of obtaining geologicaldata of a geothermal field to determine a range of a model calculation area, and building a three-dimensional geological numerical model of a research area according to a geological section map; determining water-heat initial conditions of the model; partitioning heat storage parameters, and distinguishing a heat storage layer and a heat coverage layer; determining water-heat boundary conditions of the whole simulated heat storage system; simplifying geothermal wells into one-dimensional linear geometry, and adding the geothermal well linear geometry into the model according to a distributiondiagram and coordinates of the geothermal wells; setting inflow and outflow boundary conditions of temperatures and fluids for the geothermal wells, and considering a heat exchange process of the fluids in the geothermal wells and surrounding rock masses by adopting an equivalent heat exchange coefficient, wherein the influence of a sleeve pipe and a mortar layer is also contained in the equivalent heat exchange coefficient; and setting a time period function for the model and discretizing each year into two time periods including a heating season and a non-heating season. The difficult problems of grid division and calculation speed of three-dimensional simulation of urban scale geothermal fields can be solved.

The invention discloses a building thermal load prediction method based on a heat storage system. The building thermal load prediction method comprises the following steps: obtaining physical parameters of a building; acquiring a target temperature required by the building and a corresponding time period; obtaining meteorological parameters of the building at each moment; acquiring internal heat source parameters of the building at each moment; building a prediction model by taking the physical parameters, the target temperature, the corresponding time period, the meteorological parameters andthe internal heat source parameters of the building as input quantities and taking the building heat load as an output quantity; and substituting the parameters obtained according to the above stepsinto a prediction model to obtain the building thermal load. According to the technical scheme, the thermal load prediction model is established to obtain hourly thermal load and daily heat demand inthe building heating season, the solid electric heat storage-electric direct heating combined heating equipment power ratio optimization model is established, and the economic optimization in the equipment operation life is taken as the target, the optimal input power ratio of the solid electric heat storage equipment to the electric direct heating equipment is determined, the equipment utilization rate is increased, and meanwhile the equipment initial investment and operation cost are reduced.