The invention discloses a combined space and water heating system, and a controller and a control method thereof. The combined space and water heating system includes a first heat source. The control method of a combined space and water heating system includes the following steps: controlling the first heat source to supply a water heating load until the water heating load is met by the first heat source; and changing, when the water heating load is met by the first heat source and there is a demand for a space heating load, an operating state of the first heat source such that the space heating load is supplied on the basis that the water heating load is met; or controlling the first heat source to supply a space heating load until the space heating load is met by the first heat source; and changing, when the space heating load is met by the first heat source and there is a demand for a water heating load, an operating state of the first heat source such that the water heating load is supplied on the basis that the space heating load is met. The combined space and water heating system of this application can intelligently supply the water heating load and the space heating load.
Legal claims defining the scope of protection, as filed with the USPTO.
. A control method of a combined space and water heating system, characterized in that the combined space and water heating system comprises a first heat source, and the control method of a combined space and water heating system comprises the following steps:
. The control method of a combined space and water heating system according to, characterized in that the first heat source comprises at least two first sub-heat sources connected in parallel, and the step of changing the operating state of the first heat source comprises:
. The control method of a combined space and water heating system according to, characterized in that if there is a first sub-heat source not in operation, the number of such first sub-heat sources not in operation to be activated is determined based on the demand for the space heating load or the demand for the water heating load, and the newly activated first sub-heat source(s) is/are used for supplying the space heating load on the basis that the water heating load is met or used for supplying the water heating load on the basis that the space heating load is met.
. The control method of a combined space and water heating system according to, characterized in that if all the first sub-heat sources are activated and a total operating power of all the first sub-heat sources does not reach a total maximum rated power of all the first sub-heat sources, the operating power(s) of at least part of all the first sub-heat sources is/are increased.
. The control method of a combined space and water heating system according to, characterized in that if there is a first sub-heat source not in operation and a total operating power of such first sub-heat sources not in operation fails to meet a new demand for the space heating load or a new demand for the water heating load, when a total operating power of the first sub-heat sources that have been in operation does not reach a total maximum rated power of the first sub-heat sources that have been in operation, the first sub-heat source(s) not in operation is/are activated and the operating power(s) of at least part of the first sub-heat sources that have been in operation is/are increased.
. The control method of a combined space and water heating system according to, characterized in that changing the operating state of the first heat source further comprises: reallocating all the first sub-heat sources that have been in operation such that a part of the first sub-heat sources that have been in operation supplies the water heating load and the other part supplies the space heating load.
. The control method of a combined space and water heating system according to, characterized in that the first heat source comprises at least two first sub-heat sources connected in parallel, and
. The control method of a combined space and water heating system according to any of, characterized in that the combined space and water heating system further comprises a second heat source, and the second heat source is at least used for meeting the water heating load or the space heating load; and
. The control method of a combined space and water heating system according to, characterized in that if the space heating load or the water heating load fails to be met after the step of changing the operating state of the first heat source is performed, the second heat source is operated.
. The control method of a combined space and water heating system according to any of, characterized in that the combined space and water heating system further comprises a second heat source, and the second heat source is at least used for meeting the water heating load or the space heating load;
. The control method of a combined space and water heating system according to, characterized in that the step of changing the operating state of the first heat source, and operating the second heat source such that the water heating load is supplied on the basis that the space heating load is met comprises:
. The control method of a combined space and water heating system according to any of, characterized in that the combined space and water heating system further comprises a second heat source, and the second heat source is at least used for meeting the water heating load or the space heating load; and
. The control method of a combined space and water heating system according to, characterized in that after the second heat source is preferentially operated, if the space heating load or the water heating load is not met, the operating state of the first heat source is changed such that the space heating load or the water heating load is supplied.
. The control method of a combined space and water heating system according to, characterized in that the first heat source comprises a heat pump or a gas water heater or an electric water heater, and the second heat source comprises a gas water heater or an electric water heater or a heat pump.
. The control method of a combined space and water heating system according to any of, characterized in that after the operating state of the first heat source is changed such that the space heating load is supplied on the basis that the water heating load is met, if the water heating load increases, the number of the first sub-heat sources in operation for supplying the space heating load is reduced and the reduced number of the first sub-heat sources are used for supplying the increased water heating load;
. The control method of a combined space and water heating system according to, characterized in that the combined space and water heating system further comprises a second heat source, and if the number of the first sub-heat sources in operation for supplying the water heating load is reduced, the second heat source is operated to supply the water heating load; or
. A controller of a combined space and water heating system, characterized in that the controller of a combined space and water heating system performs the control method of a combined space and water heating system according to any of.
. A combined space and water heating system, characterized by comprising: the controller of a combined space and water heating system according to; a first heat source; a first flow channel and a second flow channel which can respectively communicate with the first heat source; and
. The combined space and water heating system according to, characterized in that the first heat source comprises a plurality of first sub-heat sources, the plurality of first sub-heat sources are connected in parallel, the first flow control device comprises a plurality of first sub-flow control devices, the first flow channel comprises a plurality of first sub-flow channels, the second flow channel comprises a plurality of second sub-flow channels, and the first sub-flow control devices are each configured to control the flows of the fluid of the corresponding first sub-heat source diverted to the corresponding first sub-flow channel and the corresponding second sub-flow channel.
. The combined space and water heating system according to, characterized in that the combined space and water heating system further comprises: a second heat source; a third flow channel and a fourth flow channel which can respectively communicate with the second heat source; and
. The combined space and water heating system according to, characterized in that the second heat source comprises a plurality of second sub-heat sources, the plurality of second sub-heat sources are connected in parallel, the second flow control device comprises a plurality of second sub-flow control devices, the third flow channel comprises a plurality of third sub-flow channels, the fourth flow channel comprises a plurality of fourth sub-flow channels, and the second sub-flow control devices are each configured to control the flows of the fluid of the corresponding second sub-heat source diverted to the corresponding third sub-flow channel and the corresponding fourth sub-flow channel.
. The combined space and water heating system according to, characterized in that outlets of the second flow channel and the fourth flow channel are configured to communicate with the second terminal.
. The combined space and water heating system according to, characterized in that the combined space and water heating system further comprises: a first heat exchanger having a first heat exchange flow channel and a second heat exchange flow channel, the second flow channel comprises the second heat exchange flow channel, the fourth flow channel comprises the first heat exchange flow channel, and the second flow channel is configured to communicate with the second terminal.
. The combined space and water heating system according to, characterized in that the first heat exchanger comprises a plate heat exchanger.
. The combined space and water heating system according to, characterized in that outlets of the first flow channel and the third flow channel are configured to communicate with the first terminal.
. The combined space and water heating system according to, characterized in that the combined space and water heating system further comprises a second heat exchanger having a third heat exchange flow channel, and the first flow channel is configured to communicate with the third heat exchange flow channel; or
. The combined space and water heating system according to, characterized in that the combined space and water heating system further comprises a second heat exchanger having a third heat exchange flow channel and a fourth heat exchange flow channel; the first flow channel is configured to communicate with the third heat exchange flow channel; and the third flow channel is configured to communicate with the third heat exchange flow channel.
. The combined space and water heating system according to, characterized in that the combined space and water heating system further comprises a second heat exchanger having a third heat exchange flow channel and a third heat exchanger having a fourth heat exchange flow channel, and the third heat exchanger communicates with the second heat exchanger; the first flow channel is configured to communicate with the third heat exchange flow channel; and the third flow channel is configured to communicate with the fourth heat exchange flow channel.
. The combined space and water heating system according to, characterized in that the second heat exchanger has a first water storage chamber for storing water; the third heat exchanger has a second water storage chamber for storing water, and the first water storage chamber communicates with the second water storage chamber; the third heat exchange flow channel can exchange heat with the water stored in the first water storage chamber; the fourth heat exchange flow channel can exchange heat with the water stored in the second water storage chamber;
. The combined space and water heating system according to, characterized in that in the case that if there is a first sub-heat source not in operation, at least part of such first sub-heat sources not in operation is/are activated and the newly activated first sub-heat source(s) is/are used for supplying the space heating load on the basis that the water heating load is met or used for supplying the water heating load on the basis that the space heating load is met,
. The combined space and water heating system according to, characterized in that in the case that the newly activated first sub-heat source(s) is/are used for supplying the space heating load on the basis that the water heating load is met, the on-off valve(s) in the second sub-flow channel(s) corresponding to the newly activated first sub-heat source(s) is/are opened, and the on-off valve(s) in the first sub-flow channel(s) corresponding to the newly activated first sub-heat source(s) is/are closed; or the three-way valve(s) corresponding to the newly activated first sub-heat source(s) is/are switched to such a position that the second sub-flow channel communicates with the first sub-heat source and the first sub-flow channel does not communicate with the first sub-heat source.
. The combined space and water heating system according to, characterized in that in the step that the newly activated first sub-heat source(s) is/are used for supplying the water heating load on the basis that the space heating load is met, the on-off valve(s) in the first sub-flow channel(s) corresponding to the newly activated first sub-heat source(s) is/are opened, and the on-off valve(s) in the second sub-flow channel(s) corresponding to the newly activated first sub-heat source(s) is/are closed; or the three-way valve(s) corresponding to the newly activated first sub-heat source(s) is/are switched to such a position that the first sub-flow channel communicates with the first sub-heat source and the second sub-flow channel does not communicate with the first sub-heat source.
. The combined space and water heating system according to, characterized in that each of the second sub-flow control devices comprises on-off valves respectively disposed in the third sub-flow channel and the fourth sub-flow channel or a three-way valve disposed at a position where the third sub-flow channel communicates with the fourth sub-flow channel.
. The combined space and water heating system according to, characterized in that the second terminal comprises at least one of a fan coil unit, a floor heating system, a radiator and in-wall heat exchange equipment.
. The combined space and water heating system according to, characterized in that the first heat source comprises a heat pump or a gas water heater or an electric water heater, and the second heat source comprises a gas water heater or an electric water heater or a heat pump.
. The combined space and water heating system according to, characterized in that the controller is configured to communicate with the first heat source and the second heat source by means of power line carrier communication or serial communication.
. The combined space and water heating system according to, characterized in that the controller is further configured to communicate with the first flow control device and the second flow control device by means of power line carrier communication or serial communication.
Complete technical specification and implementation details from the patent document.
The invention relates to the field of heating technology, and in particular to a combined space and water heating system, and a controller and a control method thereof.
A combined space and water heating system can supply heat required by water heating as well as heat required by space heating. Due to the uncertain water heating load and heating time required by water heating and the uncertain load and time required by space heating, how to intelligently adjust the operating mode of the combined space and water heating system to meet the water heating load and the space heating load intelligently is a problem to be solved.
In order to overcome the above defect in the prior art, the technical problem to be solved by embodiments of the invention is to provide a combined space and water heating system, and a controller and a control method thereof, which can ensure that the combined space and water heating system intelligently supplies the water heating load and the space heating load.
The specific technical solutions of the embodiments of the invention are as follows:
A control method of a combined space and water heating system is provided. The combined space and water heating system comprises a first heat source, and the control method of a combined space and water heating system comprises the following steps:
controlling the first heat source to supply a water heating load until the water heating load is met by the first heat source; and
changing, when the water heating load is met by the first heat source and there is a demand for a space heating load, an operating state of the first heat source such that the space heating load is supplied on the basis that the water heating load is met;
or
controlling the first heat source to supply a space heating load until the space heating load is met by the first heat source; and
changing, when the space heating load is met by the first heat source and there is a demand for a water heating load, an operating state of the first heat source such that the water heating load is supplied on the basis that the space heating load is met.
Preferably, the first heat source comprises at least two first sub-heat sources connected in parallel, and the step of changing the operating state of the first heat source comprises:
increasing the number of the first sub-heat sources in operation; and/or increasing the operating power(s) of at least part of the first sub-heat sources that have been in operation.
Preferably, if there is a first sub-heat source not in operation, the number of such first sub-heat sources not in operation to be activated is determined based on the demand for the space heating load or the demand for the water heating load, and the newly activated first sub-heat source(s) is/are used for supplying the space heating load on the basis that the water heating load is met or used for supplying the water heating load on the basis that the space heating load is met.
Preferably, if all the first sub-heat sources are activated and a total operating power of all the first sub-heat sources does not reach a total maximum rated power of all the first sub-heat sources, the operating power(s) of at least part of all the first sub-heat sources is/are increased.
Preferably, if there is a first sub-heat source not in operation and a total operating power of such first sub-heat sources not in operation fails to meet a new demand for the space heating load or a new demand for the water heating load, when a total operating power of the first sub-heat sources that have been in operation does not reach a total maximum rated power of the first sub-heat sources that have been in operation, the first sub-heat source(s) not in operation is/are activated and the operating power(s) of at least part of the first sub-heat sources that have been in operation is/are increased.
Preferably, changing the operating state of the first heat source further comprises: reallocating all the first sub-heat sources that have been in operation such that a part of the first sub-heat sources that have been in operation supplies the water heating load and the other part supplies the space heating load.
Preferably, the first heat source comprises at least two first sub-heat sources connected in parallel, and
when the first heat source supplies the space heating load, the space heating load is a cooling load and there is the demand for the water heating load, the step of changing the operating state of the first heat source comprises:
keeping the number of the first sub-heat sources in a cooling state unchanged, and allowing, if there is a first sub-heat source not in operation, at least part of such first sub-heat sources not in operation to be used for supplying the water heating load;
or
when the first heat source supplies the water heating load, there is the demand for the space heating load and the space heating load is the cooling load, the step of changing the operating state of the first heat source comprises:
keeping the number of the first sub-heat sources in a heating state unchanged, and allowing, if there is a first sub-heat source not in operation, at least part of such first sub-heat sources not in operation to be used for cooling to supply the space heating load.
Preferably, the combined space and water heating system further comprises a second heat source, and the second heat source is at least used for meeting the water heating load or the space heating load; and
if an operation of the first heat source is more advantageous than an operation of the second heat source,
when the water heating load is met by the first heat source and there is the demand for the space heating load, the operating state of the first heat source is changed such that the space heating load is supplied on the basis that the water heating load is met;
or
when the space heating load is met by the first heat source and there is the demand for the water heating load, the operating state of the first heat source is changed such that the water heating load is supplied on the basis that the space heating load is met.
Preferably, if the space heating load or the water heating load fails to be met after the step of changing the operating state of the first heat source is performed, the second heat source is operated.
Preferably, the combined space and water heating system further comprises a second heat source, and the second heat source is at least used for meeting the water heating load or the space heating load;
changing, when the water heating load is met by the first heat source and there is the demand for the space heating load, the operating state of the first heat source, and operating the second heat source such that the space heating load is supplied on the basis that the water heating load is met;
or
changing, when the space heating load is met by the first heat source and there is the demand for the water heating load, the operating state of the first heat source, and operating the second heat source such that the water heating load is supplied on the basis that the space heating load is met.
Preferably, the step of changing the operating state of the first heat source, and operating the second heat source such that the water heating load is supplied on the basis that the space heating load is met comprises:
controlling the first heat source to first heat water to a first preset temperature, and then controlling the second heat source to preform secondary heating on the water.
Preferably, the combined space and water heating system further comprises a second heat source, and the second heat source is at least used for meeting the water heating load or the space heating load; and
if an operation of the second heat source is more advantageous than an operation of the first heat source,
when the water heating load is met by the first heat source and there is the demand for the space heating load, the second heat source is preferentially operated such that the space heating load is supplied on the basis that the water heating load is met;
or
when the space heating load is met by the first heat source and there is the demand for the water heating load, the second heat source is preferentially operated such that the water heating load is supplied on the basis that the space heating load is met.
Preferably, after the second heat source is preferentially operated, if the space heating load or the water heating load is not met, the operating state of the first heat source is changed such that the space heating load or the water heating load is supplied.
Preferably, the first heat source comprises a heat pump or a gas water heater or an electric water heater, and the second heat source comprises a gas water heater or an electric water heater or a heat pump.
Preferably, after the operating state of the first heat source is changed such that the space heating load is supplied on the basis that the water heating load is met, if the water heating load increases, the number of the first sub-heat sources in operation for supplying the space heating load is reduced and the reduced number of the first sub-heat sources are used for supplying the increased water heating load;
or
after the operating state of the first heat source is changed such that the water heating load is supplied on the basis that the space heating load is met, if the space heating load increases, the number of the first sub-heat sources in operation for supplying the water heating load is reduced and the reduced number of the first sub-heat sources are used for supplying the space heating load.
Preferably, the combined space and water heating system further comprises a second heat source, and if the number of the first sub-heat sources in operation for supplying the water heating load is reduced, the second heat source is operated to supply the water heating load; or
if the number of the first sub-heat sources in operation for supplying the space heating load is reduced, the second heat source is operated to supply the space heating load.
Provided is a controller of a combined space and water heating system. The controller of a combined space and water heating system performs the control method of a combined space and water heating system according to any of the above.
A combined space and water heating system is provided. The combined space and water heating system comprises: the controller of a combined space and water heating system as described above; a first heat source; a first flow channel and a second flow channel which can respectively communicate with the first heat source; and
a first flow control device, configured to control the flows of a fluid of the first heat source diverted to the first flow channel and the second flow channel, the first flow channel and the second flow channel being configured to provide heat for a first terminal and a second terminal, respectively, the first terminal being configured to supply a water heating load, and the second terminal being configured to supply a space heating load.
Preferably, the first heat source comprises a plurality of first sub-heat sources, the plurality of first sub-heat sources are connected in parallel, the first flow control device comprises a plurality of first sub-flow control devices, the first flow channel comprises a plurality of first sub-flow channels, the second flow channel comprises a plurality of second sub-flow channels, and the first sub-flow control devices are each configured to control the flows of the fluid of the corresponding first sub-heat source diverted to the corresponding first sub-flow channel and the corresponding second sub-flow channel.
Unknown
November 6, 2025
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