A heat pump and gas boiler combined heating system and its control method
A gas-fired boiler and combined heating technology, which is applied in heating systems, hot water central heating systems, heating methods, etc., can solve problems such as incorrect operation cut-off points, and achieve reduced heating costs, COP optimization, and system Simple and reasonable design
Active Publication Date: 2021-12-14
太原大四方节能环保股份有限公司
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Problems solved by technology
[0002] Since the COP of the heat pump is related to the outdoor temperature, the COP of the heat pump is much lower when the outside temperature is low, especially when frost occurs frequently, the COP is lower, which means that the same amount of heat needs to be consumed. Electric energy; in order to ensure that the COP of the heat pump is high enough and save electric energy, the heat pump is often operated in combination with the gas boiler, but it is often found that the cut-off point of the operation cannot be correct to switch the heat pump or the gas boiler
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[0040] The present invention will be described through embodiments below in conjunction with the accompanying drawings.
[0041] Such as figure 1 A combined heat supply system of a heat pump and a gas boiler includes a heat pump, a gas boiler, a control controller and a heat meter, a temperature and pressure sensor, a room temperature monitoring system, a water pump and a heat user, the gas boiler water supply pipe 48 and the gas boiler return water pipe 49 A plurality of gas boilers are connected between them, and the gas boiler is connected to the gas boiler gas meter 2; the gas boiler water supply pipe 48 is connected to the gas boiler water supply temperature sensor 16, the gas boiler water supply pressure sensor 17 and the gas boiler water supply ball valve 29, and the end of the gas boiler water supply pipe 48 It is connected to the T joint 54 connected to the gas boiler; the gas boiler return pipe 49 is connected to the gas boiler circulation pump 12, the gas boiler hea...
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The present invention relates to the technical field of HVAC, in particular to a combined heat supply system of a heat pump and a gas boiler and a control method thereof, including a heat pump, a gas boiler, a control controller and a heat meter, a temperature and pressure sensor, a room temperature monitoring system, a water pump, and an electric energy meter , input interface, output interface and heat user, the structure is simple and easy to operate, and the energy-saving control method of the heating system is also given. Since the coefficient of performance COP of the heat pump is affected by the external temperature and the heating temperature, it is necessary to do as much as possible for energy-saving operation. It is possible to increase the COP. One is to use a gas boiler to share the heat when the external temperature is too low. The other is to change the heating temperature according to the heat demand of the heat user, which can not only reduce the waste of heat, but also effectively improve the COP of the heat pump.
Description
technical field [0001] The invention relates to the technical field of heating, ventilating and air-conditioning, in particular to a combined heating system of a heat pump and a gas boiler and a control method thereof. Background technique [0002] Since the COP of the heat pump is related to the outdoor temperature, the COP of the heat pump is much lower when the outside temperature is low, especially when frost occurs frequently, the COP is lower, which means that the same amount of heat needs to be consumed. Electric energy: In order to ensure that the COP of the heat pump is high enough and save electric energy, the heat pump is often operated in combination with the gas boiler, but it is often found that the cut-off point of the operation cannot be correct to switch the heat pump or the gas boiler. [0003] When the COP of the heat pump is high enough, the COP of the heat pump system is not high. Heat supply will lead to high water temperature of the heat pump, which i...
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IPC IPC(8): F24D3/18F24D3/02F24D3/10F24D19/10F24H1/10F24H9/18F24H9/20F24H4/02
CPCF24D3/18F24D3/02F24D3/1066F24D19/1039F24H1/107F24H9/1836F24H9/2035F24H4/02
Inventor 夏路易胡庆彦
Owner 太原大四方节能环保股份有限公司