Method for operating a heat pump installation
A heat pump device and cycle operation technology, applied in heat pump, household heating, heating methods, etc., can solve the problems of temperature correlation, loss, and power factor of the circulating medium and the heating circulation loop.
Inactive Publication Date: 2016-04-06
ROBERT BOSCH GMBH
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Problems solved by technology
[0009] The disadvantages of the prior art result from the fact that the best possible hysteresis curves differ depending on the heat pump installation and mainly on the state of the overall installation (use side, additional heating, etc.) The temperature dependence of the circulation loop
Correspondingly, it is very difficult for the assembler to arrive at the correct setting, which will no longer be optimal when the temperature changes, especially the given temperature and the temperature of the circulating medium
In addition, losses will be formed when a given temperature is exceeded due to the relatively hot heating medium ahead of the bypass line in the delivery line
Therefore, the power factor (COP) will not reach the theoretically achievable height
Method used
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Embodiment Construction
[0062] figure 1 A heat pump device 1 with a heating circuit 10 and a regulating unit 60 is shown.
[0063] The heating circuit 10 through which a heating medium 11 flows here consists of a first heat exchanger 41 and a second heat exchanger 42, which are passed through a supply line 101 and a return line 102 are connected. A bypass line 80 hydraulically connects the delivery line 101 to the return line 102 . Furthermore, a first pump 21 is arranged downstream of the bypass line 80 in the delivery line 101 and a second pump 22 is arranged downstream of the bypass line 80 in the return line 102 .
[0064] The heat pump device 1 has a circuit through which the coolant 6 flows, and the second heat exchanger 42 is arranged in this circuit in such a way that a communication between the coolant 6 and the heating medium 10 can take place in the second heat exchanger 42 . heat transfer between them. Furthermore, the second heat exchanger 42 is connected to an evaporator 5 , in part...
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The invention relates to a method for operating a heat pump device with an associated heating circuit in which a heating medium circulates and which has a first heat exchanger and a second heat exchanger, which The two heat exchangers are connected by a flow pipeline and a return pipeline, wherein the bypass pipeline makes the flow pipeline and the return pipeline form a hydraulic connection, and a first pump is arranged on the flow pipeline The back of the bypass line in the pipeline or the front of the bypass line in the return line, and a second pump is set in front of the bypass line in the delivery line or It is arranged behind the bypass pipeline in the return pipeline, wherein the heat pump device is thermally coupled with the heating cycle through the second heat exchanger. The object of the invention is to increase the power factor (COP) of the heat pump arrangement by means of an improved arrangement of the start-up phase and the shutdown phase. Here, this solution has economical advantages and is reliable and simple to operate. The method according to the invention is characterized in that the regulating unit shuts down the heat pump device as soon as the efficiency loss is greater than the start-up loss of the heat pump device upon a new start-up.
Description
technical field [0001] The invention relates to a method for operating a heat pump installation. Background technique [0002] Heat pumps are known from the prior art for obtaining heat, which are used, for example, as heating systems in buildings or motor vehicles. The heat gain is achieved here in that the temperature of the coolant in a heat exchanger is lower than the temperature of the circulating medium by the generated low pressure, so that the circulating medium transfers heat to the flowing coolant via the heat exchanger. In this way, for example, with an air heat pump, heat can be transferred from the circulating air to the coolant even at very low ambient temperatures, eg below 0° C., as long as the temperature of the coolant in the heat exchanger is also below 0° C. [0003] The coolant heated in the heat exchanger then flows to a second heat exchanger under pressure. Due to the high pressure that occurs here, the temperature of the coolant is significantly hig...
Claims
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IPC IPC(8): F24D3/18F24D19/10F25B49/02
CPCF24D3/18F24D19/1039F25B30/02F25B49/022F25B2339/047F25B2700/21161Y02B30/12F24H15/38F24H15/375
Inventor M·托儿斯滕
Owner ROBERT BOSCH GMBH