The invention relates to an energy-saving control method of a hot water system integrating solar energy, a heat pump and fuel gas The energy-saving control method is characterized by comprising the control steps that the electricity price, the fuel gas price, the water using peak time t1 and an upper limit water temperature T3 of the local are input by a user through an input module; a first circulating water pump is started at 6 am to 8 am, and a solar water heater starts to heat a water tank; and through heat, obtained by heating of the solar water heater, predicted by a microprocessor according to the total heat needed all day long and an outdoor ambient temperature-time function relational expression, the microprocessor works out auxiliary heating quantity which needs to be obtained through heating of a heat pump water heater or heating of a fuel gas water heater and compares the economy of operating the heat pump water heater for heating and the economy of operating the fuel gas water heater for heating, and the maximum energy efficiency ratio is regarded as a target value The energy-saving control method has the advantages that heat obtained through solar heating all day long can be predicted, the solar energy is utilized as much as possible, the energy saving effect is good, and auxiliary heating is made more economical

Energy-saving control method of hot water system integrating solar energy, heat pump and fuel gas

The invention provides a multi-energy combined hot water system and a control method. The hot water system adopts three heat sources including a heat collector, an air source heat pump and an electric heater for heating, and comprises a water tank temperature sensor, a heat collector temperature sensor and an air temperature sensor; the control method comprises the steps: if the temperature of a vacuum tube of the heat collector is higher than the water temperature of a water tank and a difference value is greater than a set heat collector and water tank temperature difference, the heat collector is started; if the water temperature of the water tank is lower than a set water tank water temperature, a water tank temperature rise curve does not meet a temperature rise requirement, and an air temperature is greater than an air source starting temperature, the air source heat pump is started; if the water tank water temperature is lower than the set water tank water temperature, the water tank temperature rise curve does not meet the temperature rise requirement, the electric heat is started; whether the three heat sources are started is judged in sequence, the start of the heat collector considers the influence of the heat collector receiving a natural energy source such as sunlight, and the start of the air source heat pump considers the influence of the air temperature, so that the system reaches effects of safe operation and energy conservation.

Multi-energy combined hot water system and control method

The invention relates to an intelligent energy-saving control method for an air source heat pump water heater. The method includes the steps that the heat pump water heater is powered on, and when an energy saving mode is selected, water using peak time t1, an upper limit water temperature T3 of a heat pump water tank and a lower limit water temperature T4 of the heat pump water tank are set; an outdoor environment temperature T1, an actual temperature T2 of the heat pump water tank and a cold water supply temperature T5 are collected; a microprocessor receives the outdoor environment temperature T1 and the actual temperature T2 of the heat pump water tank and automatically works out the best starting time t2 of the heat pump water heater according to the outdoor environment temperature-time function relational expression in the microprocessor, the relational expression between instant heating capacity of the heat pump water heater and the outdoor environment temperature and the actual temperature of the heat pump water tank and the calculation formula for the needed heat pump heating capacity; and intervention in the control mode can be conducted by selecting a manual mode through an input module anytime. The method has the advantages that in different seasons, a user can automatically adjust set water temperatures of the heat pump water tank according to the heat consumption amount, the hot water supply temperature is lowered as much as possible under the condition that the heat consumption requirement of the user is met, and therefore operation energy efficiency of a heat pump is improved, and energy is saved.

Intelligent energy-saving control method for air source heat pump water heater

The invention relates to a multi-energy hybrid heat supply system control method, device and equipment. The method comprises the following steps that the real-time temperature of water in a water storage tank in a preset water consumption period is acquired; when the difference value between the real-time temperature and the preset temperature in the preset water time period is larger than or equal to the first temperature difference value, a heat source device corresponding to the external connection is started to heat water in the water storage tank, and the real-time temperature in the preset water time period reaches the preset temperature; the corresponding heat source equipment is a completed networking, and the current energy level is higher than or equal to the preset energy levelequipment; and the energy level is divided according to a preset division rule and corresponds to each operation time period, based on the energy consumption of the heat source equipment and the energy cost in each operation time period. According to the method, the external heat source equipment can be flexibly used, the energy levels of the heat source equipment in various running time periods can be fully utilized, the corresponding heat source equipment is started to meet the hot water requirement of the user, energy is saved, and equipment energy consumption is reduced.

Multi-energy hybrid heat supply system control method, device and equipment

The invention is applicable to the technical field of energy-saving heating, and provides energy-saving heating equipment and a control method and system thereof. The method comprises the following steps of receiving instructions of demands of users; collecting the information of each heater; collecting the environmental information, specifically, the collection of the environmental information comprises the collection of outdoor temperature, indoor temperature and/or water temperature; according to the collected environmental information matching the collected information of the heaters, selecting the appropriate heater to prepare for executing instructions; and executing the instructions. By means of the energy-saving heating equipment and the control method and system thereof, the degree of automation is effectively improved, and energy is saved by collecting the environmental information and matching the most suitable heater according to the environmental information for heating.

Energy-saving heating equipment and control method and system thereof

The invention provides a multi-energy combination hot water system and a multi-energy control switching method. According to the multi-energy combination hot water system, when a water heater is used by a large number of users, solar energy, a heat pump, gas and electric heating are started sequentially by a system controller, so that comfortable water experience is provided for the users quickly to achieve an optimum energy-saving effect; each heating unit is an independent heating unit; the modular design of the heating units is adopted, interfaces are unified, and later-period maintenance and replacement are convenient, so that the cost is reduced; and a gas heater and an electric heater are arranged on the upper side, so that hot water can be provided quickly when external environment is poor.

Multi-energy combination hot water system and multi-energy control switching method

The invention discloses a solar water heater and a method for measuring the amount of saved energy of the solar water heater. According to the solar water heater and the method for measuring the amount of saved energy of the solar water heater, comprehensive detection is conducted by combining the characteristics of a pressure-bearing water tank and the temperature rise characteristic of a solar water heating system, the amount of saved energy accumulated after the solar water heater is installed is provided for a user according to measuring data, and the amount of saved energy is converted into electric quantity to be presented. According to the solar water heater and the method for measuring the amount of saved energy of the solar water heater, a customer can easily and clearly learn the energy-saving effect of the solar water heater, the overall performance and quality of the solar water heater are improved, and the market competitiveness of the solar water heater is improved.

Yang Chuntao

Papers

Multi-energy combination hot water system and multi-energy control switching method

Solar water heater and method for measuring amount of saved energy of solar water heater