CN114279068A - Water pump switching control method and device, computer equipment and storage medium - Google Patents
Water pump switching control method and device, computer equipment and storage medium Download PDFInfo
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- CN114279068A CN114279068A CN202111521870.XA CN202111521870A CN114279068A CN 114279068 A CN114279068 A CN 114279068A CN 202111521870 A CN202111521870 A CN 202111521870A CN 114279068 A CN114279068 A CN 114279068A
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Abstract
The invention relates to the technical field of heat pump air conditioners, and particularly discloses a water pump switching control method and device, computer equipment and a storage medium. The water pump switching control method comprises the steps that a water pump unit is started, the water pump comprises a first power water pump and a second power water pump, and the power of the first power water pump is larger than that of the second power water pump; acquiring the operation number of heat pumps of a heat pump unit in the current operation; when the operation number of the heat pumps is larger than or equal to a first preset threshold value, switching to only starting a first power water pump; and when the operation quantity of the heat pumps is less than or equal to a second preset threshold value, switching to only starting the second power water pump. According to the invention, the water pumps are switched by comparing the heat pump operation quantity of the heat pump unit with the first preset threshold and the second preset threshold, so that the water pressure and water quantity output by the water pumps are prevented from being too large to damage pipelines, energy conservation and emission reduction can be realized, a frequency converter is not used, the water pumps with power required by the heat pump unit at different temperature differences can be automatically adapted, and electric energy is saved.
Description
Technical Field
The application relates to the technical field of heat pump air conditioners, in particular to a water pump switching control method and device, computer equipment and a storage medium.
Background
The heat pump central air conditioning system is generally realized by an air-fluorine-water-air heat exchange mode, wherein a water path is used as an important cold and heat carrying medium. A heat pump centralized control system (hereinafter referred to as centralized control) is used as a control core of a central air conditioning system, and is required to be capable of controlling not only a heat pump air conditioning unit, but also a total water pump of an engineering to drive a water circuit to circulate so as to create conditions for cold and heat transportation. The traditional centralized control is generally in linkage control with a machine, and by acquiring whether the machine has a requirement for starting a water pump or not, when the condition that the water pump needs to be started in any machine is detected, the centralized control starts a main water pump; when all the machines are detected to need to be shut down, the centralized control closes the total water pump. The timeliness of water supply is ensured, the water pump is always used for standby, namely, only one main water pump is started at ordinary times, and if the main water pump fails to start, the auxiliary water pump is reused at the moment.
However, different loads exist in different seasons of the heat pump central air-conditioning system, for example, the refrigeration load of a refrigeration project is large in summer, the refrigeration load is small in spring and autumn, the refrigeration load is not large in winter, particularly in Hunan, Hubei, Sichuan and other places, the refrigeration loads in spring, summer and autumn have huge differences, and a large amount of water circulation is needed in summer to ensure the cold supply capacity at the tail end. For the huge difference in temperature that the four seasons changeed, the power of utilization of water pump can't be changed to traditional centralized control, leads to still using the water pump than first power when refrigeration load is low, causes the electric energy waste. If a frequency converter is used, the high cost is increased.
Disclosure of Invention
The embodiment of the invention aims to: the utility model provides a water pump switching control method, a water pump switching control device, a computer device and a storage medium, which can solve the problems in the prior art.
In order to achieve the purpose, the following technical scheme is adopted in the application:
in a first aspect, a water pump switching control method is provided, including:
starting a water pump unit, wherein a water pump comprises a first power water pump and a second power water pump, and the power of the first power water pump is greater than that of the second power water pump;
acquiring the operation number of heat pumps of a heat pump unit in the current operation;
when the operation number of the heat pumps is larger than or equal to a first preset threshold value, switching to only starting the first power water pump;
and when the operation number of the heat pumps is less than or equal to a second preset threshold value, switching to only starting the second power water pump.
As a preferable scheme of the water pump switching control method,
when the operation number of the heat pumps is greater than or equal to the first preset threshold value, switching to only starting the first power water pump comprises the following steps:
timing and recording a first timing duration after the number of the heat pumps in operation is greater than or equal to the first preset threshold;
when the first timing duration reaches a preset duration threshold, switching to only starting the first power water pump;
when the operation number of the heat pumps is less than or equal to the second preset threshold value, switching to only starting the second power water pump comprises:
timing and recording a second timing duration after the heat pump operation number is less than or equal to the second preset threshold and the heat pump operation number is greater than zero;
and when the second timing duration reaches the preset duration threshold, switching to only starting the second power water pump.
As a preferable scheme of the water pump switching control method, the method further comprises the following steps:
when the operation number of the heat pumps is smaller than the first preset threshold value, clearing the first timing duration;
and when the operation number of the heat pumps is greater than the second preset threshold value, clearing the second timing duration.
As a preferable scheme of the water pump switching control method, the method further comprises the following steps:
acquiring opening and closing information of a water pressure transmitter before acquiring the operation quantity of heat pumps of a unit in current operation;
when the opening and closing information of the water pressure transmitter indicates closing, acquiring the operation quantity of heat pumps of the heat pump unit in current operation;
when the opening and closing information of the water pressure transmitter indicates opening, acquiring a water supply and return pressure difference value in a pipeline where the water pump is located, wherein the water supply and return pressure difference value is a pressure difference value between a water supply end and a water return end in the pipeline;
when the pressure difference value of the supplied and returned water is smaller than or equal to a third preset threshold value, switching to only starting the first power water pump;
and when the pressure difference value of the supplied and returned water is greater than or equal to a fourth preset threshold value, switching to only starting the second power water pump.
As a preferable scheme of the water pump switching control method, switching to only starting the first power water pump when the supply and return water pressure difference value is less than or equal to a third preset threshold includes:
timing and recording a third timing length after the pressure difference value of the supplied and returned water is less than or equal to a third preset threshold value;
when the third timing time reaches a preset time threshold value, starting the first power water pump and closing the second power water pump;
when the supply and return water differential pressure value is greater than or equal to a fourth preset threshold value, switching to only starting the second power water pump comprises:
timing and recording a fourth timing duration after the pressure difference value of the supplied and returned water is greater than or equal to a fourth preset threshold;
and when the fourth timing duration reaches the preset duration threshold, closing the first power water pump and opening the second power water pump.
As a preferable scheme of the water pump switching control method, the method further comprises the following steps:
clearing the third timing duration when the supply and return water pressure difference value is greater than a third preset threshold value;
and clearing the fourth timing duration when the supply and return water pressure difference value is smaller than a fourth preset threshold value.
As a preferred scheme of the water pump switching control method, the obtaining of the supply and return water pressure difference value in the pipeline where the water pump is located includes:
the water pressure transmitter is preset at the water supply end and the water return end, and the water supply and return pressure difference value in the pipeline where the water pump is located is obtained through the water pressure transmitter.
As a preferable scheme of the water pump switching control method, the method further comprises the following steps:
and when the water pressure transmitter fails, the opening and closing information of the water pressure transmitter is changed into indication closing.
As a preferable scheme of the water pump switching control method, the method further comprises the following steps:
before starting the water pump unit, acquiring the on-off demand information of the water pump;
starting the water pump unit when the water pump starting and stopping demand information indicates starting;
and when the water pump starting and stopping demand information indicates to be stopped, the water pump unit is stopped.
As a preferable scheme of the water pump switching control method, the method further comprises the following steps:
before starting the water pump unit, acquiring a starting sequence of a water pump of the water pump unit;
and starting the water pump according to the starting sequence recorded by the starting sequence.
As a preferable scheme of the water pump switching control method, the method further comprises the following steps:
when the first power water pump or the second power water pump is closed, acquiring a water temperature value of water in the water pump and an environment temperature value of the environment where the water pump is located;
and when the water temperature value is less than or equal to a first preset temperature threshold value and the environment temperature value is less than or equal to a second preset temperature threshold value, simultaneously starting the first power water pump and the second power water pump.
As a preferable scheme of the water pump switching control method, the method further comprises the following steps:
and when the water temperature value is greater than or equal to a third preset temperature threshold value and the environment temperature value is greater than a fourth temperature threshold value, simultaneously closing the first power water pump and the second power water pump.
In a second aspect, a water pump switching control device is provided, including:
the starting module is used for starting a water pump unit, the water pump comprises a first power water pump and a second power water pump, and the power of the first power water pump is greater than that of the second power water pump;
the acquisition module is used for acquiring the operation number of heat pumps of the heat pump unit in the current operation;
the switching module is used for switching to only starting the first power water pump when the operation number of the heat pumps is greater than or equal to a first preset threshold value; and when the operation number of the heat pumps is less than or equal to a second preset threshold value, switching to only starting the second power water pump.
In a third aspect, a computer device is provided, comprising: a memory and one or more processors;
the memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the water pump switching control method.
In a fourth aspect, a storage medium containing computer-executable instructions for performing the water pump switching control method when executed by a computer processor is provided.
The beneficial effect of this application does:
after the water pump unit is started, the heat pump operation number of the heat pump unit in the current operation is obtained, when the heat pump operation number of the heat pump unit is larger than or equal to a first preset threshold value, the heat pump unit in the current operation can be considered to need to use a water pump with higher power to guarantee water supply, and in order to prevent the heat pump unit at the tail end of some pipelines from having no water flow supply, the first power water pump is started and the second power water pump is closed. In addition, when the operation quantity of the heat pumps of the heat pump unit is smaller than or equal to a second preset threshold value, the power of the currently started water pump is considered to be overlarge, the water pump with the second power can be used, at the moment, the first power water pump is closed, the second power water pump is started, the situation that the pipeline is damaged due to overlarge water pressure and water quantity output by the water pump can be avoided, and energy conservation and emission reduction can be achieved.
Therefore, this application does not use the converter, and the electric energy is saved in the water pump of the required power of different seasons, different difference in temperature of the adaptation heat pump set of ability automation, also reduces the high-pressure impact of pipeline.
Drawings
The present application will be described in further detail below with reference to the accompanying drawings and examples.
Fig. 1 is a flowchart of a water pump switching control method according to an embodiment of the present application.
Fig. 2 is a flowchart of a water pump switching control method according to another embodiment of the present application.
Fig. 3 is a schematic structural diagram of a water pump switching control device according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a computer device according to an embodiment of the present application.
In the figure:
31. a starting module; 32. an acquisition module; 33. a switching module; 34. a change module;
41. a processor; 42. a memory; 43. an input device; 44. and an output device.
Detailed Description
In order to make the technical problems solved, technical solutions adopted, and technical effects achieved by the present application clearer, the following describes technical solutions of embodiments of the present application in further detail, and it is obvious that the described embodiments are only a part of embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In order to automatically adapt to the circulating water pump with power required by the heat pump central air-conditioning system in different seasons and different temperature differences, save electric energy, and also reduce high-pressure impact on the pipeline, as shown in fig. 1, the embodiment provides a water pump switching control method, which includes:
s101, starting a water pump unit, wherein the water pump comprises a first power water pump and a second power water pump, and the power of the first power water pump is greater than that of the second power water pump;
s102, acquiring the operation number of heat pumps of the heat pump unit in the current operation;
s103, when the operation number of the heat pumps is larger than or equal to a first preset threshold value, switching to only starting a first power water pump;
and S104, when the operation number of the heat pumps is less than or equal to a second preset threshold value, switching to only starting a second power water pump.
After the water pump unit is started, the heat pump operation number of the heat pump unit in the current operation is obtained, when the heat pump operation number of the heat pump unit is larger than or equal to a first preset threshold value, the heat pump unit in the current operation can be considered to need to use a water pump with higher power to guarantee water supply, and in order to prevent the heat pump unit at the tail end of some pipelines from having no water flow supply, the first power water pump is started and the second power water pump is closed. In addition, when the operation quantity of the heat pumps of the heat pump unit is smaller than or equal to a second preset threshold value, the power of the currently started water pump is considered to be overlarge, the water pump with the second power can be used, at the moment, the first power water pump is closed, the second power water pump is started, the situation that the pipeline is damaged due to overlarge water pressure and water quantity output by the water pump can be avoided, and energy conservation and emission reduction can be achieved.
Therefore, this application does not use the converter, and the electric energy is saved in the water pump of the required power of different seasons, different difference in temperature of the adaptation heat pump set of ability automation, also reduces the high-pressure impact of pipeline.
Preferably, the present embodiment switches to only turning on the first power water pump when the number of heat pump operations is greater than or equal to a first preset threshold, including:
timing and recording a first timing duration after the operation number of the heat pumps is greater than or equal to a first preset threshold;
when the first timing duration reaches a preset duration threshold, switching to only starting the first power water pump;
because the heat pump operation number of the heat pump unit is changed in real time, when the heat pump operation number of the heat pump unit in the current operation is continuously larger than or equal to a first preset threshold value within a certain time, the water supply power required by the heat pump unit within a first timing duration can be considered to be insufficient, the first power water pump is started again and the second power water pump is closed, otherwise, the first power water pump is not started, and the phenomenon that the first power water pump is started by mistake due to the short fluctuation of the operation number of the heat pump unit can be reduced.
Similarly, when the number of heat pump operations is less than or equal to a second preset threshold, switching to only turning on the second power water pump comprises:
timing and recording a second timing duration after the operation number of the heat pumps is less than or equal to a second preset threshold;
and when the second timing duration reaches the preset duration threshold, switching to only starting the second power water pump.
In order to avoid the short fluctuation of the heat pump unit heat pump operation number changed in real time, the first power water pump is closed and the second power water pump is opened only when the second timing duration reaches the preset duration threshold value by comparing the second timing duration with the preset duration threshold value, and the phenomenon that the first power water pump is closed by mistake due to the short fluctuation of the heat pump unit operation number can be reduced.
Further, the water pump switching control method of the application further comprises the following steps:
when the operation number of the heat pumps is smaller than a first preset threshold value, clearing a first timing duration;
and when the operation number of the heat pumps is greater than a second preset threshold value, clearing a second timing duration.
If the number of the heat pumps of the currently-operated unit is smaller than the first preset threshold value, the currently-operated unit can be considered to be matched with the power of the currently-started circulating water pump, the circulating water pump does not need to be switched at the moment, the first timing duration is reset, and the phenomenon that the first timing duration continues to increase to trigger the operation of switching the water pump by mistake can be avoided.
Similarly, when the operation quantity of the heat pumps is greater than the second preset threshold value, the required water supply power of the currently operated unit can be considered to be enough to be provided by the currently started circulating water pump, and the circulating water pump does not need to be switched at the moment, so that the second timing duration is cleared, and the water pump is prevented from being switched by mistake when the timing is continued.
Optionally, the water pump switching control method of the present application further includes:
acquiring opening and closing information of a water pressure transmitter before acquiring the operation quantity of heat pumps of a unit in current operation;
and when the opening and closing information of the water pressure transmitter indicates closing, acquiring the operation quantity of the heat pumps of the heat pump units in the current operation.
The water pressure transmitter is a pressure sensor and is arranged in the pipeline to detect the water pressure in the pipeline in real time, and if the water pressure transmitter is not used, the operation quantity of the heat pumps of the heat pump unit is continuously used to compare with a first preset threshold value and a second preset threshold value to judge whether the water pumps need to be switched or not.
When the opening and closing information of the water pressure transmitter indicates opening, acquiring a water supply and return pressure difference value in a pipeline where the water pump is located, wherein the water supply and return pressure difference value is a pressure difference value between a water supply end and a water return end in the pipeline;
when the water supply and return pressure difference value is smaller than or equal to a third preset threshold value, the water pressure in the current pipeline is insufficient, the water in the pipeline is driven to flow by the water pump with higher power, and the water supply requirement is met by switching to the state that only the first power water pump is started.
On the contrary, when the water supply and return pressure difference value is larger than or equal to the fourth preset threshold value, the water pressure in the current pipeline is over large, and in order to prevent the pipeline from being broken due to over large water pressure and save electric energy, the current pipeline is switched to only start the second power water pump.
Further, the water pump switching control method of the present application, when the supply-return water pressure difference value is less than or equal to a third preset threshold, switches to only starting the first power water pump, including:
timing and recording the third timing time after the pressure difference value of the supplied and returned water is less than or equal to the third preset threshold value;
and when the third timing time reaches a preset time threshold, starting the first power water pump and closing the second power water pump.
By counting and judging the third timing duration and the preset duration threshold, when the third timing duration is greater than or equal to the preset duration threshold, it is shown that the supply-return water pressure difference of the pipeline is continuously lower than the third preset threshold within the time range of the third timing duration, the higher-power circulating water pump needs to be started to increase the water pressure in the pipeline, the first power water pump is started again and the second power water pump is closed, otherwise, the switching is not performed, and the first power water pump can be prevented from being started by mistake due to short-term water pressure fluctuation in the pipeline.
Similarly, when the supply and return water differential pressure value is greater than or equal to a fourth preset threshold, switching to the step of turning on only the second power water pump includes:
timing and recording a fourth timing duration after the pressure difference value of the supplied and returned water is greater than or equal to a fourth preset threshold;
and when the fourth timing duration reaches the preset duration threshold, closing the first power water pump and starting the second power water pump.
The duration time that the pressure difference value of the supply and return water is too large is recorded through the fourth timing time, when the fourth timing time reaches the preset time threshold value, the pressure difference value of the supply and return water is too large, the first power water pump needs to be closed in time, the second power water pump needs to be opened, and the pipeline is prevented from being broken due to too large water pressure. On the contrary, if the fourth timing duration does not reach the preset duration threshold, the excessive condition of the water supply and return pressure difference may only fluctuate temporarily, and the water pump does not need to be switched.
Further, the water pump switching control method of the present application further includes:
and clearing the third timing duration when the supply and return water pressure difference value is greater than a third preset threshold value.
Because the supply and return water pressure difference value is greater than the third preset threshold value, the supply and return water pressure difference is considered to be recovered to be normal at the moment, the circulating water pump is not needed, the third time length can be reset, and the water pump is prevented from being switched by mistake when the meter is continuously counted.
Similarly, when the supply and return water differential pressure value is smaller than a fourth preset threshold value, the fourth timing duration is cleared.
Because the pressure difference value of the supply water and the return water is smaller than the fourth preset threshold value, the pressure difference value of the supply water and the return water is recovered to be normal, the water pump does not need to be switched, the fourth time length can be reset, and the water pump is prevented from being switched by mistake when the time is continuously counted.
In another embodiment, in the water pump switching control method of the present application, the step of obtaining a supply and return water pressure difference value in a pipeline where the water pump is located includes:
and presetting water pressure transmitters at the water supply end and the water return end, respectively acquiring the pressure of the water supply end and the pressure of the water return end through the water pressure transmitters, and further calculating the pressure difference value of the water supply and the water return in the pipeline where the water pump is located.
Furthermore, when any one of the water pressure transmitters at the water supply end or the water return end breaks down, the opening and closing information of the water pressure transmitter is changed into indication and closing, and the scheme of comparing and judging the running quantity of the heat pumps of the heat pump unit with the first preset threshold value or the second preset threshold value is used, so that the broken water pressure transmitter is avoided.
Preferably, the water pump switching control method of the present application further includes:
before starting the water pump unit, acquiring the on-off demand information of the water pump;
when the water pump starting and stopping demand information indicates starting, starting the water pump unit, acquiring starting and stopping information of the water pressure transmitter, and performing subsequent water pump switching schemes;
when the water pump opening and closing demand information indicates closing, the water pump unit is closed in time, namely all the first power water pumps and all the second power water pumps are closed.
In this embodiment, the information about the water pump start/stop requirement may be from a heat pump unit in operation, or may be from an external remote control instruction, and this embodiment is not particularly limited.
More preferably, after the water pump unit is turned off, the first timing duration, the second timing duration, the third timing duration and the fourth timing duration are reset, and when the water pump on-off demand information indicates to be turned on next time, the first timing duration, the second timing duration, the third timing duration and the fourth timing duration can be started again to avoid switching the water pump by mistake.
In addition, the water pump switching control method of the application further comprises the following steps:
before starting the water pump unit, acquiring a starting sequence of a water pump of the water pump unit;
and starting the water pump according to the starting sequence recorded by the starting sequence.
More preferably, the start-up sequence records the priority of the first power water pump and the second power water pump;
starting the water pump with the highest priority according to the sequence of the starting sequence;
after switching to only starting the first power water pump, recording that the priority of the first power water pump is higher than that of the second power water pump;
and after switching to the state that only the second power water pump is started, recording that the priority of the second power water pump is higher than that of the first power water pump.
Through obtaining the start sequence, can come automatic opening water pump according to the order of start sequence, the highest priority water pump of preferential start-up can reduce the maintenance personal and switch the manual operation who starts the water pump to improve the switching efficiency of water pump, also guaranteed the promptness of water supply, also reduced central air conditioning system's shutdown operation simultaneously, and then improved heat pump central air conditioning system's stability. After the water pumps are switched, the priority order of the water pumps in the starting sequence is replaced, when the water pumps need to be started next time, the last started water pump can still be started, and system faults caused by starting another water pump with another power by mistake are avoided.
Preferably, after all the water pumps are turned off each time, the priority of the second power water pump is recorded to be higher than that of the first power water pump, so that the second power water pump with lower power is turned on preferentially every time the water pumps are turned on again, and high-pressure oscillation on the pipeline is reduced.
Optionally, the water pump switching control method of the present application further includes:
when the first power water pump or the second power water pump is closed, acquiring a water temperature value of water in the water pump and an environment temperature value of an environment where the water pump is located;
when the temperature value of the water is smaller than or equal to the first preset temperature threshold value and the environmental temperature value is smaller than or equal to the second preset temperature threshold value, the water in the pipeline is at risk of icing, at the moment, the first power water pump and the second power water pump are started simultaneously, the water in the pipeline is pushed to move, and icing can be delayed.
Further, the water pump switching control method of the application further comprises
When the water temperature value is greater than or equal to the third preset temperature threshold value and the environmental temperature value is greater than the fourth temperature threshold value, the water in the pipeline is not frozen, and the first power water pump and the second power water pump can be turned off simultaneously.
In addition, referring to fig. 2, an embodiment of the present application further provides another water pump switching control method, including:
s201, acquiring water pump starting and stopping demand information;
s202, when the water pump starting and stopping requirement information indicates stopping, the water pump unit is stopped, and the first timing duration, the second timing duration, the third timing duration and the fourth timing duration are cleared;
s203, when the water pump starting and stopping requirement information indicates starting, acquiring a starting sequence of a water pump of the water pump unit, wherein the starting sequence records the priority of a first power water pump and the priority of a second power water pump, and the power of the first power water pump is greater than that of the second power water pump; starting the water pump with the highest priority according to the sequence of the starting sequence;
s204, presetting water pressure transmitters at a water supply end and a water return end, and acquiring opening and closing information of the water pressure transmitters;
s205, when the start-stop information of the water pressure transmitter indicates to close or when the water pressure transmitter fails, the start-stop information of the water pressure transmitter is changed into indication to close;
s206, acquiring the operation number of heat pumps of the heat pump unit in the current operation;
s207, timing and recording a first timing duration when the operation number of the heat pumps is greater than or equal to a first preset threshold; when the first timing duration reaches a preset duration threshold, switching to start only the first power water pump, and recording that the priority of the first power water pump is higher than that of the second power water pump;
s208, when the operation number of the heat pumps is smaller than a first preset threshold value, clearing a first timing duration;
s209, timing and recording a second timing duration when the operation number of the heat pumps is less than or equal to a second preset threshold; when the second timing duration reaches a preset duration threshold, switching to only starting the second power water pump, and recording that the priority of the second power water pump is higher than that of the first power water pump;
s210, when the operation number of the heat pumps is larger than a second preset threshold value, clearing a second timing duration;
s211, when the opening and closing information of the water pressure transmitter indicates opening, acquiring a water supply and return water pressure difference value in a pipeline where the water pump is located through the water pressure transmitter, wherein the water supply and return water pressure difference value is a pressure difference value between a water supply end and a water return end in the pipeline;
s212, timing and recording the third timing length when the pressure difference value of the supplied and returned water is less than or equal to a third preset threshold value; when the third timing time reaches a preset time threshold, starting the first power water pump and closing the second power water pump, and recording that the priority of the first power water pump is higher than that of the second power water pump;
s213, clearing a third timing duration when the supply and return water differential pressure value is greater than a third preset threshold value;
s214, timing and recording a fourth timing duration when the pressure difference value of the supplied and returned water is greater than or equal to a fourth preset threshold value; when the fourth timing duration reaches a preset duration threshold, closing the first power water pump, starting the second power water pump, and recording that the priority of the second power water pump is higher than that of the first power water pump;
s215, when the pressure difference value of the supply water and the return water is smaller than a fourth preset threshold value, clearing a fourth timing duration;
s216, when the first power water pump or the second power water pump is closed, acquiring a water temperature value of water in the water pump and an environment temperature value of an environment where the water pump is located;
s217, when the water temperature value is smaller than or equal to a first preset temperature threshold value and the environment temperature value is smaller than or equal to a second preset temperature threshold value, simultaneously starting a first power water pump and a second power water pump;
and S218, when the water temperature value is greater than or equal to a third preset temperature threshold value and the environment temperature value is greater than a fourth temperature threshold value, simultaneously closing the first power water pump and the second power water pump.
The water pump switching control method in the embodiment can have the same steps and achieve the same effect as the water pump switching control method in the embodiment, can rapidly switch the water pump with higher power or lower power when the water supply system is faced with insufficient power or overlarge power, reduces electric energy waste, and increases the buffering time to reduce excessive switching so as to adapt to normal fluctuation of the water pressure of the pipeline and reduce misoperation.
Referring to fig. 3, the present application also provides a water pump switching control apparatus, including:
the starting module 31 is used for starting the water pump unit, the water pump comprises a first power water pump and a second power water pump, and the power of the first power water pump is greater than that of the second power water pump;
the obtaining module 32 is configured to obtain the number of heat pump operations of the heat pump unit in current operation;
the switching module 33 is used for switching to only starting the first power water pump when the operation number of the heat pumps is greater than or equal to a first preset threshold value; and when the operation quantity of the heat pumps is less than or equal to a second preset threshold value, switching to only starting the second power water pump.
Above-mentioned, after starting the water pump set, through obtaining the heat pump operation quantity of heat pump set in the current operation, when the heat pump operation quantity of heat pump set is greater than or equal to first preset threshold, can think that the heat pump set of current operation needs to use the water pump of higher power to guarantee to supply water, in order to prevent that some pipeline end's heat pump set from having no rivers supply, open first power water pump and close second power water pump this moment. In addition, when the operation quantity of the heat pumps of the heat pump unit is smaller than or equal to a second preset threshold value, the power of the currently started water pump is considered to be overlarge, the water pump with the second power can be used, at the moment, the first power water pump is closed, the second power water pump is started, the situation that the pipeline is damaged due to overlarge water pressure and water quantity output by the water pump can be avoided, and energy conservation and emission reduction can be achieved.
Therefore, this application does not use the converter, and the electric energy is saved in the water pump of the required power of different seasons, different difference in temperature of the adaptation heat pump set of ability automation, also reduces the high-pressure impact of pipeline.
In a possible embodiment, the switching module 33 is further configured to time and record a first time period after the number of heat pump operations is greater than or equal to the first preset threshold;
when the first timing duration reaches a preset duration threshold, switching to only starting the first power water pump;
timing and recording a second timing duration after the heat pump operation number is less than or equal to the second preset threshold and the heat pump operation number is greater than zero;
and when the second timing duration reaches the preset duration threshold, switching to only starting the second power water pump.
In a possible embodiment, the switching module 33 is further configured to zero the first timing duration when the number of heat pump operations is smaller than the first preset threshold;
and when the operation number of the heat pumps is greater than the second preset threshold value, clearing the second timing duration.
In a possible embodiment, the obtaining module 32 is further configured to obtain start and stop information of the water pressure transmitter before obtaining the number of heat pumps of the unit currently operating;
when the opening and closing information of the water pressure transmitter indicates closing, acquiring the operation quantity of heat pumps of the heat pump unit in current operation;
when the opening and closing information of the water pressure transmitter indicates opening, acquiring a water supply and return pressure difference value in a pipeline where the water pump is located, wherein the water supply and return pressure difference value is a pressure difference value between a water supply end and a water return end in the pipeline;
the switching module 33 is further configured to switch to only start the first power water pump when the supply and return water pressure difference value is less than or equal to a third preset threshold;
and when the pressure difference value of the supplied and returned water is greater than or equal to a fourth preset threshold value, switching to only starting the second power water pump.
In a possible embodiment, the switching module 33 is further configured to time and record a third time duration after the supply-return water pressure difference value is less than or equal to a third preset threshold;
when the third timing time reaches the preset time threshold, starting the first power water pump and closing the second power water pump;
timing and recording a fourth timing duration after the pressure difference value of the supplied and returned water is greater than or equal to a fourth preset threshold;
and when the fourth timing duration reaches the preset duration threshold, closing the first power water pump and opening the second power water pump.
In a possible embodiment, the switching module 33 is further configured to zero the third timing duration when the supply-return water pressure difference value is greater than a third preset threshold;
and clearing the fourth timing duration when the supply and return water pressure difference value is smaller than a fourth preset threshold value.
In a possible embodiment, the obtaining module 32 is configured to obtain a supply and return water pressure difference value in a pipeline where the water pump is located through the water pressure transmitters preset at the water supply end and the water return end.
In one possible embodiment, the water pump switching control device further comprises a modification module 34, wherein the modification module 34 is used for modifying the on-off information of the water pressure transmitter to indicate the off state when the water pressure transmitter fails.
In a possible embodiment, the obtaining module 32 is further configured to obtain information of a water pump start-stop requirement before starting the water pump unit;
the starting module 31 is further configured to start the water pump unit when the water pump start-stop demand information indicates start-up;
and when the water pump starting and stopping demand information indicates to be stopped, the water pump unit is stopped.
In a possible embodiment, the obtaining module 32 is further configured to obtain a start sequence of a water pump of the water pump unit before the water pump unit is started;
the switching module 33 starts the water pump according to the start sequence recorded in the start sequence.
In one possible embodiment, the start sequence of the acquisition module 32 records the priorities of the first power water pump and the second power water pump;
the switching module 33 starts the water pump with the highest priority according to the sequence of the starting sequence;
the switching module 33 is further configured to record that the priority of the first power water pump is higher than that of the second power water pump after switching to only starting the first power water pump;
and after the second power water pump is switched to be only started, recording that the priority of the second power water pump is higher than that of the first power water pump.
In a possible embodiment, the obtaining module 32 is further configured to obtain a water temperature value of water in the water pump and an environmental temperature value of an environment where the water pump is located when the first power water pump or the second power water pump is turned off;
the starting module 31 is further configured to start the first power water pump and the second power water pump simultaneously when the water temperature value is less than or equal to a first preset temperature threshold and the environmental temperature value is less than or equal to a second preset temperature threshold.
In a possible embodiment, the switching module 33 is further configured to simultaneously turn off the first power water pump and the second power water pump when the water temperature value is greater than or equal to a third preset temperature threshold and the environment temperature value is greater than a fourth temperature threshold.
The water pump switching control device in this embodiment may have the same steps and achieve the same effects as the water pump switching control method in the above embodiment, and this embodiment is not described again.
In addition, this application embodiment still provides a computer equipment, and this computer equipment can integrate the water pump switching controlling means that this application embodiment provided. Fig. 4 is a schematic structural diagram of a computer device according to an embodiment of the present application. Referring to fig. 4, the computer apparatus includes: an input device 43, an output device 44, a memory 42, and one or more processors 41; the memory 42 for storing one or more programs; when the one or more programs are executed by the one or more processors 41, the one or more processors 41 are enabled to implement the water pump switching control method provided in the above embodiment. Wherein the input device 43, the output device 44, the memory 42 and the processor 41 may be connected by a bus or other means, for example, in fig. 4.
The memory 42, as a storage medium readable by a computing device, can be used to store software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the water pump switching control method according to any embodiment of the present application (for example, the starting module 31, the obtaining module 32, and the switching module 33 in the water pump switching control apparatus). The memory 42 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory 42 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 42 may further include memory located remotely from processor 41, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 43 may be used to receive input numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 44 may include a display device such as a display screen.
The processor 41 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the memory 42, that is, implements the above-described water pump switching control method.
The water pump switching control device, the equipment and the computer provided by the above can be used for executing the water pump switching control method provided by any of the above embodiments, and have corresponding functions and beneficial effects.
An embodiment of the present application further provides a storage medium containing computer-executable instructions, where the computer-executable instructions are executed by a computer processor to perform the water pump switching control method provided in the foregoing embodiment, and the water pump switching control method includes: starting a water pump unit, wherein the water pump comprises a first power water pump and a second power water pump, and the power of the first power water pump is greater than that of the second power water pump; acquiring the operation number of heat pumps of a heat pump unit in the current operation; when the operation number of the heat pumps is larger than or equal to a first preset threshold value, switching to only starting the first power water pump; and when the operation number of the heat pumps is less than or equal to a second preset threshold value, switching to only starting the second power water pump.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the internet). The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided in the embodiments of the present application and containing the computer-executable instructions is not limited to the water pump switching control method described above, and may also perform related operations in the water pump switching control method provided in any embodiments of the present application.
The water pump switching control device, the water pump switching control apparatus, and the storage medium provided in the foregoing embodiments may execute the water pump switching control method provided in any embodiment of the present application, and refer to the water pump switching control method provided in any embodiment of the present application without detailed technical details described in the foregoing embodiments.
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship merely for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principles of the present application have been described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the present application and is not to be construed in any way as limiting the scope of the application. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present application without inventive effort, which shall fall within the scope of the present application.
Claims (15)
1. A water pump switching control method is characterized by comprising the following steps:
starting a water pump unit, wherein a water pump comprises a first power water pump and a second power water pump, and the power of the first power water pump is greater than that of the second power water pump;
acquiring the operation number of heat pumps of a heat pump unit in the current operation;
when the operation number of the heat pumps is larger than or equal to a first preset threshold value, switching to only starting the first power water pump;
and when the operation number of the heat pumps is less than or equal to a second preset threshold value, switching to only starting the second power water pump.
2. The water pump switching control method according to claim 1,
when the operation number of the heat pumps is greater than or equal to the first preset threshold value, switching to only starting the first power water pump comprises the following steps:
timing and recording a first timing duration after the number of the heat pumps in operation is greater than or equal to the first preset threshold;
when the first timing duration reaches a preset duration threshold, switching to only starting the first power water pump;
when the number of the heat pump operations is less than or equal to the second preset threshold and the number of the heat pump operations is greater than zero, switching to only starting the second power water pump comprises:
timing and recording a second timing duration after the heat pump operation number is less than or equal to the second preset threshold and the heat pump operation number is greater than zero;
and when the second timing duration reaches the preset duration threshold, switching to only starting the second power water pump.
3. The water pump switching control method according to claim 2, further comprising:
when the operation number of the heat pumps is smaller than the first preset threshold value, clearing the first timing duration;
and when the operation number of the heat pumps is greater than the second preset threshold value, clearing the second timing duration.
4. The water pump switching control method according to claim 1, further comprising:
acquiring opening and closing information of a water pressure transmitter before acquiring the operation quantity of heat pumps of a unit in current operation;
when the opening and closing information of the water pressure transmitter indicates closing, acquiring the operation quantity of heat pumps of the heat pump unit in current operation;
when the opening and closing information of the water pressure transmitter indicates opening, acquiring a water supply and return pressure difference value in a pipeline where the water pump is located, wherein the water supply and return pressure difference value is a pressure difference value between a water supply end and a water return end in the pipeline;
when the pressure difference value of the supplied and returned water is smaller than or equal to a third preset threshold value, switching to only starting the first power water pump;
and when the pressure difference value of the supplied and returned water is greater than or equal to a fourth preset threshold value, switching to only starting the second power water pump.
5. The water pump switching control method according to claim 4,
when the supply and return water differential pressure value is less than or equal to a third preset threshold, switching to only starting the first power water pump comprises:
timing and recording a third timing length after the pressure difference value of the supplied and returned water is less than or equal to a third preset threshold value;
when the third timing time reaches a preset time threshold value, starting the first power water pump and closing the second power water pump;
when the supply and return water differential pressure value is greater than or equal to a fourth preset threshold value, switching to only starting the second power water pump comprises:
timing and recording a fourth timing duration after the pressure difference value of the supplied and returned water is greater than or equal to a fourth preset threshold;
and when the fourth timing duration reaches the preset duration threshold, closing the first power water pump and opening the second power water pump.
6. The water pump switching control method according to claim 5, further comprising:
clearing the third timing duration when the supply and return water pressure difference value is greater than a third preset threshold value;
and clearing the fourth timing duration when the supply and return water pressure difference value is smaller than a fourth preset threshold value.
7. The water pump switching control method according to claim 4, wherein the obtaining of the supply and return water pressure difference value in the pipeline where the water pump is located comprises:
the water pressure transmitter is preset at the water supply end and the water return end, and the water supply and return pressure difference value in the pipeline where the water pump is located is obtained through the water pressure transmitter.
8. The water pump switching control method according to claim 7, further comprising:
and when the water pressure transmitter fails, the opening and closing information of the water pressure transmitter is changed into indication closing.
9. The water pump switching control method according to claim 4, further comprising:
before starting the water pump unit, acquiring the on-off demand information of the water pump;
starting the water pump unit when the water pump starting and stopping demand information indicates starting;
and when the water pump starting and stopping demand information indicates to be stopped, the water pump unit is stopped.
10. The water pump switching control method according to claim 1, further comprising:
before starting the water pump unit, acquiring a starting sequence of a water pump of the water pump unit;
and starting the water pump according to the starting sequence recorded by the starting sequence.
11. The water pump switching control method according to claim 1, further comprising:
when the first power water pump or the second power water pump is closed, acquiring a water temperature value of water in the water pump and an environment temperature value of the environment where the water pump is located;
and when the water temperature value is less than or equal to a first preset temperature threshold value and the environment temperature value is less than or equal to a second preset temperature threshold value, simultaneously starting the first power water pump and the second power water pump.
12. The water pump switching control method according to claim 11, further comprising:
and when the water temperature value is greater than or equal to a third preset temperature threshold value and the environment temperature value is greater than a fourth temperature threshold value, simultaneously closing the first power water pump and the second power water pump.
13. A water pump switching control device, comprising:
the starting module is used for starting a water pump unit, the water pump comprises a first power water pump and a second power water pump, and the power of the first power water pump is greater than that of the second power water pump;
the acquisition module is used for acquiring the operation number of heat pumps of the heat pump unit in the current operation;
the switching module is used for switching to only starting the first power water pump when the operation number of the heat pumps is greater than or equal to a first preset threshold value; and when the operation number of the heat pumps is less than or equal to a second preset threshold value, switching to only starting the second power water pump.
14. A computer device, comprising: a memory and one or more processors;
the memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the water pump switching control method according to any one of claims 1 to 12.
15. A storage medium containing computer-executable instructions for performing the water pump switching control method of any one of claims 1-12 when executed by a computer processor.
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