Staged heating type heat storage type heating system
A heating system and regenerative technology, applied in the field of regenerative air source heat pump, can solve the problems of high equipment cost, poor adaptability to changing working conditions and high failure rate
Pending Publication Date: 2018-05-04
KOCHEM ELECTRICAL
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Problems solved by technology
However, due to the two systems of high and low pressure, the equipment cost is high, the control is complicated, the failure rate is high, and the adaptability to variable working conditions is poor, etc.
Method used
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[0018] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0019] Figure 1 to Figure 3 Some embodiments according to the invention are shown.
[0020] Such as figure 1 As shown, the thermal storage heating system with time-sharing and segmental heating includes a compressor 1, a medium-temperature heat accumulator 2, an expansion valve 3, a first three-way valve 4, a second three-way valve 5, an evaporator 6, and a high-temperature storage Heater 7, four-way valve 8, gas-liquid separator 9, and circulation pump 10.
[0021] Among them, the evaporator 6 and the high-temperature accumulator 7 are arranged in parallel, and the four-way valve 8 controls the medium flow direction of the system, and the figure 1 The medium flow direction in is called th...
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The invention discloses a staged heating type heat storage type heating system. The system comprises a compressor, a gas-liquid separator, a four-way valve and a medium circulation pipeline; the medium circulation pipeline comprises a medium-temperature heat accumulator, an expansion valve, a first three-way valve, a second three-way valve, an evaporator and a high-temperature heat accumulator, wherein the high-temperature heat accumulator and the evaporator are arranged in parallel, and the medium-temperature heat accumulator is connected to a pipeline between the four-way valve and the expansion valve in series. When the system runs in the first stage, the system uses the evaporator to absorb low-grade heat from the low-temperature air, the low-grade heat is stored in the medium-temperature heat accumulator after being heated through a heat pump for the use in the second stage; and when the system runs in the second stage, the system absorbs the heat from the medium-temperature heataccumulator, the heat is stored in the high-temperature heat accumulator after being heated by the heat pump for heating the circulating water, wherein operation at the first stage and the second stage are alternately carried out to realize high-temperature hot water preparation.
Description
technical field [0001] The invention relates to the field of heat storage type air source heat pumps, in particular to a heat storage type heating system for time-sharing and segmental heating. Background technique [0002] In recent years, with the improvement of people's awareness and demand for energy conservation and environmental protection, heating devices with high output-input ratio are attracting more and more attention from individuals and even the entire country. Especially in winter heating in North China and Northwest China, the state vigorously promotes coal-fired transformation projects, completely bans small coal-fired heating boilers for heating, and replaces them with heating devices that are more environmentally friendly and pollution-free, and have a higher input-output ratio. [0003] The current heating transformation is mainly to transform coal-fired boilers into gas-fired boilers and air source heat pumps. Gas-fired boiler heating, the outlet water t...
Claims
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IPC IPC(8): F24D11/02F25B43/00F25B13/00
CPCF24D11/0214F25B13/00F25B43/00
Inventor 杜贤平杭文斌华青梅杨旭
Owner KOCHEM ELECTRICAL