Water pump control method, control equipment and heating equipment

Abstract

The invention relates to the technical field of heating equipment, and discloses a water pump control method, control equipment and heating equipment.The water pump control method responds to the situation that the heating equipment enters a standby state, and if water temperature change information corresponding to the current outdoor environment temperature is obtained, inquiry is conducted in the water temperature change information based on the first outlet water temperature of the current heating equipment; the standby state is used for representing that the heating device stops heating and the water pump stops running, and the water temperature change information is used for representing the corresponding relation between the water outlet temperature of the current heating equipment and the pump stopping time; and the water pump is controlled to be started after the first pump stopping duration. Start and stop of the water pump are dynamically adjusted according to the outdoor environment temperature and the outlet water temperature, the far-end heating water temperature and the near-end heating water temperature are balanced, meanwhile, start and stop of the water pump are dynamically adjusted according to the outlet water temperature, work of heating equipment is controlled in time, the situation that the far-end heating water temperature is lower than the set temperature is avoided, local low temperature is avoided, and the indoor heating requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of heating equipment, and in particular to a water pump control method, control equipment and heating equipment. Background Art

[0002] In order to save energy, when it is detected that the outlet water temperature of the gas heating water boiler reaches the set temperature requirement, the gas heating water boiler will stop heating and switch to standby mode. Since the heating water temperature at the far end of the circulating heating pipeline is lower than the heating water temperature at the near end of the circulating heating pipeline, the water pump is controlled to start and stop at a fixed frequency to circulate the water in the heating pipeline and circulate the heating water at the far end of the gas heating water boiler to the near end to achieve the purpose of balancing the indoor temperature. However, in actual applications, such water pump operation logic lacks flexibility and cannot guarantee that the heating water temperature at the far end of the circulating heating pipeline always meets the temperature requirement when the water pump is stopped. The heating water temperature at the far end is lower than the set threshold of the outlet water temperature of the gas heating water boiler, but the outlet water temperature of the gas heating water boiler is still higher than the set threshold. Therefore, the gas heating water boiler does not start heating, resulting in a local low temperature phenomenon, which makes the indoor temperature balancing effect poor and cannot meet the heating needs. Summary of the invention

[0003] The technical problem solved by the present invention is to provide a water pump control method, a control device and a heating device, which effectively solves the problem that the heating device has a poor balancing effect on the indoor temperature and cannot meet the heating demand.

[0004] The above technical problems are solved by the following technical solutions:

[0005] On the one hand, an embodiment of the present invention provides a water pump control method, which is applied to a control device of a heating device, wherein the heating device also includes a heating device and a water pump; the method includes:

[0006] In response to the heating device entering the standby state, if the water temperature change information corresponding to the current outdoor ambient temperature is obtained, the first outlet water temperature of the current heating device is queried in the water temperature change information to obtain the first pump stop time, and the water pump is controlled to start after the first pump stop time; wherein the standby state is used to indicate that the heating device stops heating and the water pump stops running, and the water temperature change information is used to indicate the corresponding relationship between the outlet water temperature of the heating device and the pump stop time;

[0007] Compared with the background technology, the water pump control method described in the present invention has the following beneficial effects: the present invention uses water temperature change information to characterize the corresponding relationship between the outlet water temperature and the pump stop time under the corresponding outdoor ambient temperature, and sets corresponding water temperature change information for each outdoor ambient temperature collected, and at the same time determines the current water pump stop time, i.e., the first pump stop time, based on the water temperature change information corresponding to the current outdoor ambient temperature combined with the outlet water temperature, thereby dynamically adjusting the start and stop of the water pump in combination with the outdoor ambient temperature and the outlet water temperature, and when the heating water temperature at the far end of the heating circulation pipeline reaches the outlet water temperature setting threshold of the heating equipment, the water pump is started in time to balance the heating water temperature at the far end and the heating water temperature at the near end of the heating circulation pipeline, so as to avoid the heating water temperature at the far end being lower than the outlet water temperature setting threshold of the heating equipment, thereby avoiding local low temperature in the room, thereby ensuring the balanced effect on the indoor temperature and meeting the indoor heating needs.

[0008] In one embodiment, the first pump stop time is obtained by querying the water temperature change information based on the first outlet water temperature of the current heating equipment, including:

[0009] Respectively determine a first pump-off time corresponding to the first outlet water temperature in the water temperature change information, and a second pump-off time corresponding to the minimum outlet water temperature threshold of the current heating equipment in the water temperature change information;

[0010] The first pump-off duration is obtained based on the difference between the second pump-off time and the first pump-off time.

[0011] In one embodiment, the method further comprises:

[0012] Determine whether there is corresponding water temperature change information for the current outdoor ambient temperature;

[0013] If there is no corresponding water temperature change information for the current outdoor ambient temperature, determining a reference temperature corresponding to the current outdoor ambient temperature;

[0014] If the reference temperature has corresponding water temperature change information, the water temperature change information corresponding to the reference temperature is determined as the water temperature change information corresponding to the current outdoor ambient temperature.

[0015] In one embodiment, the method further comprises:

[0016] If there is no corresponding water temperature change information for the reference temperature, it is determined that the water temperature change information corresponding to the current outdoor ambient temperature has not been obtained;

[0017] Get the preset pump stop time;

[0018] The preset pump-off time is determined as the first pump-off time.

[0019] In one embodiment, after the step of controlling the water pump to start after the first pump stop time, the step further includes:

[0020] Control the water pump to stop running after a preset running time, and obtain the second outlet water temperature of the current heating equipment;

[0021] Based on the first outlet water temperature, the second outlet water temperature and the first pump stop time, the water temperature change information corresponding to the current outdoor ambient temperature is updated;

[0022] If the second outlet water temperature is greater than the minimum outlet water temperature threshold, the second pump stop time is determined based on the updated water temperature change information corresponding to the current outdoor ambient temperature and the second outlet water temperature;

[0023] The water pump is controlled to start after the second pump stop time.

[0024] In one embodiment, based on the first outlet water temperature, the second outlet water temperature and the first pump stop time, the water temperature change information corresponding to the current outdoor ambient temperature is updated, including:

[0025] Adding the first outlet water temperature, the second outlet water temperature and the first pump stop time to the data set of water temperature change information corresponding to the current outdoor ambient temperature;

[0026] Based on the data set, the water temperature change information corresponding to the current outdoor ambient temperature is fitted to update the water temperature change information corresponding to the current outdoor ambient temperature.

[0027] In one embodiment, after the water temperature change information corresponding to the current outdoor ambient temperature is updated based on the first outlet water temperature, the second outlet water temperature and the first pump stop time, the method further includes:

[0028] If the second outlet water temperature is less than or equal to the minimum outlet water temperature threshold, the water pump and the heating device are controlled to start until the heating equipment enters the standby state.

[0029] In one embodiment, the method further comprises:

[0030] If there is corresponding water temperature change information for multiple outdoor ambient temperatures, the water temperature change information corresponding to the multiple outdoor ambient temperatures is fitted to obtain multi-dimensional water temperature change information; the multi-dimensional water temperature change information is used to characterize the corresponding relationship between the outlet water temperature, the outdoor ambient temperature and the pump stop time.

[0031] On the other hand, an embodiment of the present invention provides a control device, including a memory and a processor, the memory and the processor are communicatively connected to each other, computer instructions are stored in the memory, and the processor executes any of the water pump control methods described above by executing the computer instructions.

[0032] On the other hand, an embodiment of the present invention provides a heating device, including: a control device, a heating device, a heating pipeline, a water pump, a first temperature sensor and a second temperature sensor;

[0033] The heating device is connected to the heating pipeline, and the heating device is used to heat the water in the heating pipeline; the water pump and the second temperature sensor are arranged on the heating pipeline;

[0034] The control device is respectively connected to the heating device, the water pump, the first temperature sensor and the second temperature sensor; the first temperature sensor is used to collect the ambient temperature; the second temperature sensor is used to collect the outlet water temperature of the heating pipeline;

[0035] The control device is used to control the operation of the water pump based on any of the water pump control methods described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 is a flow chart of a water pump control method according to an embodiment of the present invention;

[0038] Figure 2 It is a schematic diagram of a flow chart of determining a first pump stop time length in a water pump control method according to an embodiment of the present invention;

[0039] Figure 3 It is a schematic diagram of a flow chart of determining water temperature change information corresponding to the current outdoor ambient temperature in a water pump control method according to an embodiment of the present invention;

[0040] Figure 4 is a flow chart of another water pump control method according to an embodiment of the present invention;

[0041] Figure 5 It is a structural schematic diagram of a control device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0044] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the related art, in order to balance the indoor temperature, when it is detected that the outlet water temperature reaches the set temperature requirement, the gas heating water boiler will stop heating and switch to standby mode, and at the same time control the water pump to start and stop at a fixed frequency to circulate the water in the heating pipeline, and circulate the heating water from the far end of the gas heating water boiler to the near end. However, the heat dissipation speed of water is different at different outdoor ambient temperatures. The fixed frequency water pump circulation cannot guarantee that the heating water temperature at the far end always meets the temperature requirement, and there will be a phenomenon of local low temperature, resulting in poor indoor temperature balancing effect. Especially when the outdoor ambient temperature is low, the water at the far end of the heating cycle dissipates heat faster and the water temperature is lower. At this time, the water temperature at the far end of the heating may be lower than the set heating water temperature threshold, but the heating water temperature at the temperature sensor is still higher than the heating water temperature threshold, and the indoor temperature is lower than the specified temperature but the heating equipment is still not started, resulting in the heating equipment being unable to meet the heating demand.

[0046] Based on this, an embodiment of the present invention provides a water pump control method, which is applied to a control device of a heating device, wherein the heating device also includes a heating device and a water pump; the method includes: in response to the heating device entering a standby state, if water temperature change information corresponding to the current outdoor ambient temperature is obtained, then based on the first outlet water temperature corresponding to the water pump, the water temperature change information is queried to obtain a first pump stop time, the standby state is used to characterize that the heating device stops heating and the water pump stops running, and the water temperature change information is used to characterize the corresponding relationship between the outlet water temperature corresponding to the water pump and the pump stop time; the water pump is controlled to start after the first pump stop time. The present invention uses water temperature change information to characterize the corresponding relationship between the outlet water temperature and the pump stop time under the corresponding ambient temperature, and sets the corresponding water temperature change information for each outdoor ambient temperature collected, and dynamically adjusts the start and stop of the water pump in combination with the outdoor ambient temperature and the outlet water temperature, balances the heating water temperature at the far end of the heating circulation pipeline and the heating water temperature at the near end, and timely controls the operation of the heating equipment to avoid the heating water temperature at the far end of the heating circulation pipeline being lower than the set temperature, thereby avoiding local low temperature, thereby ensuring the balanced effect on the indoor temperature.

[0047] Combine the following Figures 1 to 5 , describing an embodiment of the present invention.

[0048] According to an embodiment of the present invention, on the one hand, a water pump control method is provided, which is applied to a control device of a heating device, and the heating device also includes a heating device and a water pump. Figure 1 is a flow chart of a water pump control method according to an embodiment of the present invention, such as Figure 1 As shown, the method comprises the following steps:

[0049] Step 110: In response to the heating device entering the standby state, if water temperature change information corresponding to the current outdoor ambient temperature is obtained, the first pump stop duration is obtained by querying the water temperature change information based on the first water outlet temperature of the current heating device.

[0050] In the embodiment of the present invention, the standby state is used to indicate that the heating device stops heating and the water pump stops running, that is, the heating equipment stops working at this time and no longer provides heating. The current outdoor ambient temperature is the outdoor ambient temperature collected when the heating equipment enters the standby state. The outlet water temperature is the outlet water temperature of the heating equipment, and the first outlet water temperature is the outlet water temperature of the heating equipment collected when the heating equipment enters the standby state. The first pump stop time is the time it takes for the water in the heating circulation pipeline to drop from the first outlet water temperature to the minimum outlet water temperature threshold.

[0051] In the embodiment of the present invention, the water temperature change information is used to characterize the corresponding relationship between the outlet water temperature of the current heating equipment and the pump stop time, that is, the change of the outlet water temperature as the pump stop time changes under the outdoor ambient temperature corresponding to the water temperature change information; for each outdoor ambient temperature collected, there is its corresponding water temperature change information. Based on the first outlet water temperature, the water temperature change information is queried, and the first pump stop time corresponding to the first outlet water temperature is determined according to the corresponding relationship between the outlet water temperature and the pump stop time.

[0052] In an embodiment of the present invention, the water temperature change information corresponding to each outdoor ambient temperature is determined based on the collected water outlet temperature and pump stop time. As historical experience data, it can fit the change of water outlet temperature in actual scenarios, and the first pump stop time is determined on this basis. It can ensure that after the pump stops for the first pump stop time at the current outdoor ambient temperature, the water outlet temperature of the heating pipeline is the minimum water outlet temperature threshold or close to the minimum water outlet temperature threshold.

[0053] In an optional implementation, the water temperature change information may be in the form of a curve, a table, a functional relationship, or any other form that can describe the corresponding relationship between the outlet water temperature and the pump stop time, and no specific limitation is made herein.

[0054] Step 120: Control the water pump to start after the first pump-off time.

[0055] In the embodiment of the present invention, during the pump stop process, the temperature of the heating circulation pipeline continues to drop. According to the theoretical situation corresponding to the water temperature change information, after the pump stop time reaches the first pump stop time, the lowest water temperature in the heating circulation pipeline should drop to the lowest outlet water temperature threshold of the heating equipment. Since the heat dissipation capacity of the far and near ends of the heating water circulation corresponding to the heating circulation pipeline is different, the far end of the heating dissipates heat faster, and the lowest water temperature in the heating circulation pipeline is usually the farthest end of the heating circulation pipeline. The water temperature will be lower than the water temperature of the near end of the heating. Therefore, after the pump stops for the first pump stop time, the water pump is started to circulate the water in the heating circulation pipeline, and the water at the near end is circulated to the far end. At this time, the outlet water temperature sensor of the heating equipment detects that the outlet water temperature reaches the lowest outlet water temperature threshold, and the heating device is started, thereby ensuring that the far end heating water temperature always meets the temperature requirements, balancing the water temperature in the heating circulation pipeline, and further balancing the indoor temperature.

[0056] In an optional implementation, since the heating device always enters the standby state when the outlet water temperature reaches the set maximum outlet water temperature threshold, the outlet water temperature of the heating device always starts to decrease from the maximum outlet water temperature threshold, so in the water temperature change information, the starting value of the outlet water temperature is the maximum outlet water temperature threshold, and its corresponding pump stop time is also 0. Based on this, Figure 2 FIG. 1 is a flow chart of determining the first pump stop time in a water pump control method according to an embodiment of the present invention. Figure 2 As shown, in the above step 110, based on the first outlet water temperature of the current heating equipment, querying in the water temperature change information to obtain the first pump stop time may include the following steps:

[0057] Step 210: respectively determine a first pump-off time corresponding to the first outlet water temperature in the water temperature change information, and a second pump-off time corresponding to the minimum outlet water temperature threshold of the heating equipment in the water temperature change information.

[0058] In the embodiment of the present invention, the first outlet water temperature and the minimum outlet water temperature threshold are queried in the water temperature change information corresponding to the current outdoor ambient temperature, respectively, to obtain the first pump stop time corresponding to the first outlet water temperature and the second pump stop time corresponding to the minimum outlet water temperature threshold. The first pump stop time corresponds to the pump stop time required for the water in the heating circulation pipeline to drop from the maximum outlet water temperature threshold to the first outlet water temperature, and the second pump stop time corresponds to the pump stop time required for the water in the heating circulation pipeline to drop from the maximum outlet water temperature threshold to the minimum outlet water temperature threshold. By subtracting the second pump stop time from the first pump stop time, the pump stop time required for the first outlet water temperature to drop to the minimum outlet water temperature threshold can be obtained.

[0059] Step 220: Obtain the first pump-off duration based on the difference between the second pump-off time and the first pump-off time.

[0060] In the embodiment of the present invention, the second pump-off time is subtracted from the first pump-off time to obtain a difference between the second pump-off time and the first pump-off time, and the difference is used as the first pump-off duration.

[0061] In an optional implementation, since the water temperature change information corresponding to each outdoor ambient temperature is determined based on the water outlet temperature and pump stop time collected at the outdoor ambient temperature, if the relevant data of the current outdoor ambient temperature has not been collected before, then there is no corresponding water temperature change information for the current outdoor ambient temperature. At this time, it can be further determined whether there is corresponding water temperature change information for the reference temperature corresponding to the current outdoor ambient temperature. If there is corresponding water temperature change information for the reference temperature, the corresponding water temperature change information for the reference temperature is used as the water temperature change information for the current outdoor ambient temperature to determine the first pump stop duration. If there is no corresponding water temperature change information for the reference temperature, the preset pump stop duration is used as the first pump stop duration. Thus, through the above method, it is ensured that in any case, a first pump stop duration that is more in line with the current actual environment can be determined, so that after the pump is stopped according to the first pump stop duration, the water temperature at the far end of the heating pipeline will not differ greatly from the minimum water outlet temperature threshold, thereby avoiding the situation where the water temperature at the far end of the heating pipeline is already lower than the minimum water outlet temperature threshold and the heating equipment has not yet started.

[0062] Specifically, Figure 3FIG. 1 is a flow chart of determining water temperature change information corresponding to the current outdoor ambient temperature in a water pump control method according to an embodiment of the present invention. Figure 3 As shown, determining the water temperature change information corresponding to the current outdoor ambient temperature according to the reference temperature corresponding to the current outdoor ambient temperature may include the following steps:

[0063] Step 310: Determine whether there is corresponding water temperature change information for the current outdoor ambient temperature.

[0064] In an embodiment of the present invention, the water temperature change information corresponding to each outdoor ambient temperature can be stored uniformly, for example, in a database, cloud, etc., and an association relationship is established between each water temperature change information and its corresponding outdoor ambient temperature for easy query. After obtaining the current outdoor ambient temperature, the stored water temperature change information is queried for water temperature change information associated with it to determine whether there is water temperature change information corresponding to the current outdoor ambient temperature. If the water temperature change information corresponding to the current outdoor ambient temperature is queried in the stored water temperature change information, the above Figure 2 The steps in the shown embodiment determine the first pump stop duration; if the water temperature change information corresponding to the current outdoor ambient temperature is not found in the stored water temperature change information, the water temperature change information corresponding to the current outdoor ambient temperature is further determined based on the reference temperature corresponding to the current outdoor ambient temperature.

[0065] Step 320: If there is no corresponding water temperature change information for the current outdoor ambient temperature, determine a reference temperature corresponding to the current outdoor ambient temperature.

[0066] In the embodiment of the present invention, if there is no corresponding water temperature change information for the current outdoor ambient temperature, a reference temperature corresponding to the current outdoor ambient temperature is determined. The reference temperature may be a temperature close to the current outdoor ambient temperature, for example, a temperature within a temperature range centered on the current outdoor ambient temperature.

[0067] Step 330: If the reference temperature has corresponding water temperature change information, the water temperature change information corresponding to the reference temperature is determined as the water temperature change information corresponding to the current outdoor ambient temperature.

[0068] In the embodiment of the present invention, if the reference temperature has corresponding water temperature change information, the water temperature change information corresponding to the reference temperature is determined as the water temperature change information corresponding to the current outdoor ambient temperature, and according to the water temperature change information, the above Figure 2 The steps in the illustrated embodiment determine the first pump stop duration. It should be noted that the water temperature change information corresponding to the reference temperature is determined as the water temperature change information corresponding to the current outdoor ambient temperature, which is only used to determine the first pump stop duration based on it, and will not be used as the water temperature change information corresponding to the current outdoor ambient temperature in the future.

[0069] In an optional embodiment, the reference temperature corresponding to the current outdoor ambient temperature can be a temperature range, such as a temperature range centered on the current outdoor ambient temperature. If there are multiple outdoor ambient temperatures with corresponding water temperature change information within the temperature range centered on the current outdoor ambient temperature, the outdoor ambient temperature with the smallest difference from the current outdoor ambient temperature among these outdoor ambient temperatures is used as the outdoor ambient temperature corresponding to the current outdoor ambient temperature; if there are multiple outdoor ambient temperatures with the smallest difference from the current outdoor ambient temperature within the temperature range centered on the current outdoor ambient temperature, that is, there is an outdoor ambient temperature that is a certain value less than the current outdoor ambient temperature and an outdoor ambient temperature that is the same value greater than the current outdoor ambient temperature, then considering that the heat dissipation of water in the heating pipeline is faster when the outdoor ambient temperature is lower, the corresponding first pump stop time is also shorter, so the ambient temperature that is lower than the current outdoor ambient temperature can be used as the reference temperature to control the outlet water temperature above the minimum outlet water temperature threshold, so as to avoid the pump stop time being too long, which causes the water temperature at the far end of the heating pipeline to be lower than the minimum outlet water temperature threshold.

[0070] In an optional implementation, if the reference temperature does not have corresponding water temperature change information, or all outdoor ambient temperatures within the temperature range corresponding to the current outdoor ambient temperature do not have corresponding water temperature change information, it is determined that the water temperature change information corresponding to the current outdoor ambient temperature has not been obtained, and the preset pump stop time is obtained at this time, and the preset pump stop time is determined as the first pump stop time. The preset pump stop time may be a pump stop time derived from historical experience, and the historical experience may be obtained based on operating data or test data of other heating equipment, that is, the heating equipment may synchronize its collected data; optionally, a preset pump stop time may be set for each outdoor ambient temperature or outdoor ambient temperature range based on historical experience, so as to avoid the same preset pump stop time not being able to adapt to all outdoor ambient temperatures.

[0071] In an optional implementation, after the heating device enters the standby state, the water pump will continuously repeat the pump stop-start cycle until the outlet water temperature is lower than the minimum outlet water temperature threshold, and the heating device of the heating device is started, thereby maintaining the indoor temperature balance during the standby process of the heating device. Figure 4 FIG. 1 is a flow chart of another water pump control method according to an embodiment of the present invention. Figure 4 As shown, after the above step 120: controlling the water pump to start after the first pump stop time, the following steps may also be included:

[0072] Step 410: Control the water pump to stop running after a preset running time, and obtain the second outlet water temperature of the current heating equipment.

[0073] In an embodiment of the present invention, the water pump is controlled to run, and the water pump is controlled to stop running after the running time reaches a preset running time, so as to fully circulate the water in the heating pipeline, thereby balancing the water temperature of the heating pipeline, that is, balancing the outlet water temperature, so as to achieve the purpose of balancing the indoor temperature, and at the same time, the second outlet water temperature corresponding to the water pump is obtained after the water pump stops running.

[0074] In an optional embodiment, the preset operating time is determined based on the design of the heating equipment. Specifically, the preset operating time is determined by the circulation time of water in the heating equipment, and the circulation time can be determined based on the pipe length and water flow designed for the heating equipment.

[0075] Step 420: Based on the first outlet water temperature, the second outlet water temperature and the first pump stop time, the water temperature change information corresponding to the current outdoor ambient temperature is updated.

[0076] In an embodiment of the present invention, the water temperature change information corresponding to the current outdoor ambient temperature is updated based on the first water outlet temperature, the second water outlet temperature and the first pump-off duration, thereby updating the water temperature change information based on historical data, so that the water temperature change information can be continuously optimized and gradually conform to the actual water temperature trend, thereby making the pump-off duration determined based on the water temperature change information more accurate.

[0077] In an optional implementation, the first water outlet temperature, the second water outlet temperature and the first pump stop time are added to the data set of the water temperature change information corresponding to the current outdoor ambient temperature; if the current outdoor ambient temperature has no corresponding water temperature change information before, the first water temperature, the second water outlet temperature and the first pump stop time are the first set of data in the data set. Based on the data set, the water temperature change information corresponding to the current outdoor ambient temperature is fitted to update the water temperature change information corresponding to the current outdoor ambient temperature. Since new data is added to the data set, the water temperature change information is refitted based on the data set, so that the water temperature change information corresponding to the current outdoor ambient temperature can be updated. For example, if the water temperature change information is a curve, the curve is refitted based on the data set, and the refitted curve is used as the updated water temperature change information; in this way, the first pump stop time when the heating equipment ends each time and enters standby can be updated, so that the pump stop time determined based on the water temperature change information is more accurate, the indoor temperature is more balanced, and the situation of local low temperature in the room is avoided.

[0078] Step 430: If the second outlet water temperature is greater than the minimum outlet water temperature threshold, the second pump stop time is determined based on the updated water temperature change information corresponding to the current outdoor ambient temperature and the second outlet water temperature.

[0079] In the embodiment of the present invention, if the second outlet water temperature is greater than the minimum outlet water temperature threshold, it indicates that the heating device does not need to be started yet, and the heating device continues to remain in the standby state, while the water pump continues the pump stop-start cycle to balance the water temperature of the heating pipeline. At this time, based on the updated water temperature change information corresponding to the current outdoor ambient temperature and the second outlet water temperature, the second pump stop time is determined; the method for determining the second pump stop time can refer to Figure 2 The steps in the illustrated embodiment will not be described in detail here.

[0080] Step 440: Control the water pump to start after the second pump-off time.

[0081] In the embodiment of the present invention, after the water pump is stopped for the second stop time, the water pump is started to circulate the water in the heating circulation pipeline, and the water at the far end is circulated to the near end, thereby balancing the water temperature in the heating circulation pipeline and further balancing the indoor temperature. Thus, the above process is repeated, and when the heating device is in the standby state, the water pump continuously repeats the stop-start cycle until the heating device is started when the outlet water temperature is lower than the minimum outlet water temperature threshold, thereby maintaining the indoor temperature balance during the standby process of the heating device.

[0082] In an optional embodiment, if the second outlet water temperature is less than or equal to the minimum outlet water temperature threshold, it indicates that the heating equipment needs to be started to heat the water in the heating circulation pipeline. At this time, the water pump is controlled to start until the outlet water temperature reaches the maximum outlet water temperature threshold, and the heating equipment enters the standby state; correspondingly, other components or modules in the heating equipment also enter the working state, for example, the heating device starts heating. Thus, through the above method, when the outlet water temperature does not exceed the minimum outlet water temperature threshold, the heating equipment is started to heat the water in the heating pipeline, when the outlet water temperature reaches the maximum outlet water temperature threshold, the heating equipment is controlled to enter the standby state, and when the outlet water temperature is greater than the minimum outlet water temperature threshold, the heating equipment is maintained in the standby state, and at the same time, the water pump is controlled to repeat the pump stop-start cycle to maintain the indoor temperature balance.

[0083] In an optional implementation, as the working time of the heating equipment increases and the number of water pump cycles increases, more outdoor ambient temperatures and their corresponding water temperature change information are collected. At this time, they can be fitted into multi-dimensional water temperature change information, that is, when enough water temperature change curves at different outdoor temperatures are obtained, it is no longer necessary to obtain the water temperature change information corresponding to the current outdoor ambient temperature, but the change in the outlet water temperature can be determined directly based on the multi-dimensional water temperature change information to calculate the pump stop time of the water pump. Specifically, if there is corresponding water temperature change information for multiple outdoor ambient temperatures, the water temperature change information corresponding to the multiple outdoor ambient temperatures can be fitted to obtain multi-dimensional water temperature change information; wherein the multi-dimensional water temperature change information is used to characterize the corresponding relationship between the outlet water temperature and the outdoor ambient temperature and the pump stop time; for example, if the water temperature change information is a curve, the multi-dimensional water temperature change information obtained by fitting multiple water temperature change information is a surface, that is, on the two-dimensional curve, the dimension of ambient temperature is added to obtain a three-dimensional surface.

[0084] The water pump control method provided by an embodiment of the present invention is applied to the control device of a heating equipment, and the heating equipment also includes a heating device and a water pump; the method responds to the heating equipment entering a standby state. If the water temperature change information corresponding to the current outdoor ambient temperature is obtained, the first water outlet temperature of the current heating equipment is queried in the water temperature change information to obtain a first pump stop time, and the standby state is used to characterize that the heating device stops heating and the water pump stops running, and the water temperature change information is used to characterize the corresponding relationship between the water outlet temperature of the current heating equipment and the pump stop time; the water pump is controlled to start after the first pump stop time. The present invention uses water temperature change information to characterize the corresponding relationship between the outlet water temperature and the pump stop time under the corresponding ambient temperature, and sets corresponding water temperature change information for each collected ambient temperature. At the same time, the pump stop time of the current water pump is determined according to the water temperature change information corresponding to the current outdoor ambient temperature in combination with the outlet water temperature, that is, the first pump stop time. The water pump start and stop are dynamically adjusted in combination with the outdoor ambient temperature and the outlet water temperature to balance the remote heating water temperature and the proximal heating water temperature. The remote water is circulated to the proximal end or to the temperature sensor position, so that the temperature sensor can collect the remote heating water temperature, thereby being able to timely control the operation of the heating equipment, avoiding the remote heating water temperature from being lower than the set temperature, thereby avoiding local low temperature, thereby ensuring the balanced effect on the indoor temperature.

[0085] On the other hand, an embodiment of the present invention provides a control device, Figure 5 is a schematic diagram of the structure of a control device according to an embodiment of the present invention. Figure 5As shown, the control device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. The various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the control device, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple control devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 5 A processor 10 is taken as an example.

[0086] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0087] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0088] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required by at least one function; the data storage area may store data created according to the use of the control device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the control device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0089] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0090] On the other hand, an embodiment of the present invention provides a heating equipment, including: a control device, a heating device, a heating pipeline, a water pump, a first temperature sensor and a second temperature sensor; the heating device is connected to the heating pipeline, and the heating device is used to heat the water in the heating pipeline; the water pump and the second temperature sensor are arranged on the heating pipeline; the control device is respectively connected to the heating device, the water pump, the first temperature sensor and the second temperature sensor; the first temperature sensor is used to collect the ambient temperature; the second temperature sensor is used to collect the outlet water temperature of the heating pipeline; the control device is used to control the operation of the water pump based on any of the water pump control methods described above.

[0091] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The specific contents of the above specific implementations only express several implementations of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A water pump control method, characterized in that: In a control device applied to a heating device, the heating device further includes a heating device and a water pump; the method includes: In response to the heating equipment entering the standby state, if the water temperature change information corresponding to the current outdoor ambient temperature is obtained, the water temperature change information is queried based on the current first water outlet temperature of the heating equipment, and the first pump-off time is obtained, and the water pump is controlled to start after the first pump-off time; wherein, the standby state is used to characterize that the heating device stops heating and the water pump stops running, and the water temperature change information is used to characterize the correspondence between the water outlet temperature of the heating equipment and the pump-off time.

2. The method according to claim 1, characterized in that: The first outlet water temperature of the current heating equipment is queried in the water temperature change information to obtain a first pump stop time, including: Respectively determine a first pump-off time corresponding to the first outlet water temperature in the water temperature change information, and a second pump-off time corresponding to the minimum outlet water temperature threshold of the heating equipment in the water temperature change information; The first pump-off duration is obtained based on the difference between the second pump-off time and the first pump-off time.

3. The method according to claim 1, characterized in that The method further comprises: Determine whether there is corresponding water temperature change information for the current outdoor ambient temperature; If there is no corresponding water temperature change information for the current outdoor ambient temperature, determining a reference temperature corresponding to the current outdoor ambient temperature; If the reference temperature has corresponding water temperature change information, the water temperature change information corresponding to the reference temperature is determined as the water temperature change information corresponding to the current outdoor ambient temperature.

4. The method according to claim 3, characterized in that The method further comprises: If there is no corresponding water temperature change information for the reference temperature, it is determined that the water temperature change information corresponding to the current outdoor ambient temperature has not been obtained; Get the preset pump stop time; The preset pump-off time duration is determined as the first pump-off time duration.

5. The method according to claim 1, characterized in that After the step of controlling the water pump to start after the first pump-off time, the step further includes: Controlling the water pump to stop running after a preset running time, and obtaining the second outlet water temperature of the heating equipment; Based on the first outlet water temperature, the second outlet water temperature and the first pump stop time, the water temperature change information corresponding to the current outdoor ambient temperature is updated; If the second outlet water temperature is greater than the minimum outlet water temperature threshold, determining a second pump stop time based on the updated water temperature change information corresponding to the current outdoor ambient temperature and the second outlet water temperature; The water pump is controlled to start after the second pump-off time.

6. The method according to claim 5, characterized in that The updating of the water temperature change information corresponding to the current outdoor ambient temperature based on the first outlet water temperature, the second outlet water temperature, and the first pump stop time includes: adding the first outlet water temperature, the second outlet water temperature and the first pump stop time to the data set of water temperature change information corresponding to the current outdoor ambient temperature; Based on the data set, the water temperature change information corresponding to the current outdoor ambient temperature is fitted to update the water temperature change information corresponding to the current outdoor ambient temperature.

7. The method according to claim 5, characterized in that After the water temperature change information corresponding to the current outdoor ambient temperature is updated based on the first outlet water temperature, the second outlet water temperature and the first pump stop time, the method further includes: If the second water outlet temperature is less than or equal to the minimum water outlet temperature threshold, the water pump and the heating device are controlled to start until the heating equipment enters the standby state.

8. The method according to claim 1, characterized in that The method further comprises: If there is corresponding water temperature change information for multiple outdoor ambient temperatures, the water temperature change information corresponding to the multiple outdoor ambient temperatures is fitted to obtain multi-dimensional water temperature change information; the multi-dimensional water temperature change information is used to characterize the corresponding relationship between the outlet water temperature, the outdoor ambient temperature and the pump stop time.

9. A control device, characterized in that: It comprises a memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the water pump control method according to any one of claims 1 to 8 by executing the computer instructions.

10. A heating device, characterized in that: The device comprises: a control device, a heating device, a heating pipeline, a water pump, a first temperature sensor and a second temperature sensor; The heating device is connected to the heating pipeline, and the heating device is used to heat the water in the heating pipeline; the water pump and the second temperature sensor are arranged on the heating pipeline; The control device is connected to the heating device, the water pump, the first temperature sensor and the second temperature sensor respectively; the first temperature sensor is used to collect the outdoor ambient temperature; the second temperature sensor is used to collect the outlet water temperature of the heating pipeline; The control device is used to control the operation of the water pump based on the water pump control method as described in any one of claims 1-8.

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