CN107300202B - Control method and system of hydraulic module, computer equipment and readable storage medium - Google Patents
Control method and system of hydraulic module, computer equipment and readable storage medium Download PDFInfo
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- CN107300202B CN107300202B CN201710548358.1A CN201710548358A CN107300202B CN 107300202 B CN107300202 B CN 107300202B CN 201710548358 A CN201710548358 A CN 201710548358A CN 107300202 B CN107300202 B CN 107300202B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
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Abstract
The invention provides a control method, a control system, computer equipment and a computer readable storage medium of a hydraulic module. The control method comprises the following steps: acquiring a water flow value Q monitored by the flowmeter, a water temperature T1 of a water inlet detected by a water inlet temperature sensor and a water temperature T2 of a water outlet detected by a water outlet temperature sensor; judging whether the difference value of the inlet and outlet water temperatures of the water temperature T2 and the water temperature T1 exceeds a first preset range and whether the water flow value Q exceeds a second preset range; and when the inlet and outlet water temperature difference value exceeds a first preset range and the water flow value Q exceeds a second preset range, sending an alarm signal for reminding of cleaning the filter. The invention can remind users and manufacturers of impurities in the after-sales service treatment filter and cleaning dirt in the air source heat pump water system in time, ensures good heat exchange effect of the hydraulic module and good operation of the water pump in a safe and reliable environment, improves product quality and prolongs the service life of the unit.
Description
Technical Field
The invention relates to the technical field of air source heat pumps, in particular to a control method, a control system, computer equipment and a computer readable storage medium of a hydraulic module.
Background
The air source heat pump unit in the coal-to-electricity system in the north, especially individual family formula user group, the installation work of coal-to-electricity system project mainly demolishs original boiler heat source, and installation air source heat pump unit is the replacement heat source, and the leaving water temperature is up to more than 60 degrees based on original boiler heat supply, will lead to heating terminal inside quality of water calcification scale deposit to cause the valve member dirty stifled phenomenon. If scale deposit impurity gets into the water system of water conservancy module, will abrade and corrode water side heat exchanger, influence the heat transfer effect and cause the water pump card to die, finally lead to changing the water pump and wash dirty stifled water system, cause the loss of changing the part, increased the maintenance cost, also corresponding influence the quality of product simultaneously and bring discontented for the user.
Therefore, how to solve the problem that the heat exchanger is reminded to be cleaned after sale by users and manufacturers in time when the working condition parameters in the water system of the air source heat pump reach the preset range becomes urgent to be solved.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the invention proposes a control method.
A second aspect of the invention is directed to a control system.
A third aspect of the invention is directed to a computer device.
A fourth aspect of the present invention is directed to a computer-readable storage medium.
In view of the above, according to an aspect of the present invention, a control method is provided for controlling a hydraulic module in an air source heat pump, a water inlet and a water outlet of the hydraulic module are respectively provided with a water inlet temperature sensor and a water outlet temperature sensor, a water inlet of the hydraulic module is connected with a filter through a pipeline, and a flow meter is arranged on the pipeline, where the control method includes: acquiring a water flow value Q monitored by the flowmeter, a water temperature T1 of a water inlet detected by a water inlet temperature sensor and a water temperature T2 of a water outlet detected by a water outlet temperature sensor; judging whether the difference value of the inlet and outlet water temperatures of the water temperature T2 and the water temperature T1 exceeds a first preset range and whether the water flow value Q exceeds a second preset range; and when the inlet and outlet water temperature difference value exceeds a first preset range and the water flow value Q exceeds a second preset range, sending an alarm signal for reminding of cleaning the filter.
The control method provided by the invention comprises the steps of respectively obtaining the water outlet water temperature T2 detected by a water inlet temperature sensor arranged at a water inlet of a hydraulic module and a water outlet temperature sensor arranged at a water outlet of the hydraulic module, obtaining the water flow value Q of a pipeline detected by a water flow meter arranged on a pipeline of a hydraulic module water system, comparing the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q with preset working condition parameters (a first preset range and a second preset range), and if the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q simultaneously exceed the preset working condition parameters, sending an alarm signal for reminding the cleaning of a filter, wherein the alarm signal can be a buzzing sound to prevent the continuous startup operation time from being too long, possibly leading in impurities to a water pump to be blocked and not to rotate, and finally reporting the unit to stop, the water pump realizes timely reminding of users and manufacturers of impurities in the after-sale service treatment filter and cleaning of dirt in the air source heat pump water system, ensures good heat exchange effect of the hydraulic module and good operation of the water pump in a safe and reliable environment, improves product quality and prolongs service life of the unit.
According to the above control method of the present invention, the following technical features may be further provided:
in the above technical solution, preferably, the ambient temperature T outside the storage chamber is stored in advance0The corresponding relation between the range of the difference value of the inlet and outlet water temperatures and the range of the water flow value Q.
In the technical scheme, no matter the air source heat pump unit is a constant speed machine type or a variable frequency machine type, the air source heat pump unit runs in a heating mode in winter or a cooling mode in summer, and has different outdoor environment temperatures T0The corresponding normal inlet and outlet water temperatures have different difference values and different outdoor environment temperatures T0Corresponding normal water flow values Q are different, and the ambient temperature outside the pre-storage chamber is T0And setting working condition parameters (the allowable range of the inlet and outlet water temperature difference value and the allowable range of the water flow value Q) of the hydraulic module so as to judge whether the current working condition of the hydraulic module is normal or not.
In any of the above technical solutions, before obtaining the water flow rate value Q monitored by the flow meter, the water temperature T1 of the water inlet detected by the water inlet temperature sensor, and the water temperature T2 of the water outlet detected by the water outlet temperature sensor, the method further preferably includes: the current outdoor ambient temperature T is monitored while the air-source heat pump is operating in cooling/heating mode.
According to the technical scheme, when the air source heat pump operates in a cooling/heating mode, the current outdoor environment temperature T is detected, so that the normal working condition parameter range of the current hydraulic module is determined according to the current outdoor environment temperature.
In any of the above technical solutions, before determining whether the difference between the current water temperature T2 and the current water temperature T1 exceeds the first preset range and whether the current water flow value Q exceeds the second preset range, the method further includes: acquiring the current outdoor environment temperature T; comparing the current outdoor ambient temperature T with the outdoor ambient temperature T0(ii) a When the current outdoor environment temperature T and the outdoor environment temperature T0When the difference value is in a third preset range, the outdoor environment temperature T is measured0The corresponding range of the temperature difference of the inlet and the outlet water and the range of the water flow value are respectively set as a first preset range and a second preset range.
In the technical scheme, before judging whether the difference value between the current water temperature T2 and the current water temperature T1 exceeds a first preset range or not and whether the current water flow value Q exceeds a second preset range or not, the detected current outdoor environment temperature T is firstly acquired, and then the current outdoor environment temperature T and the prestored outdoor environment temperature T are compared0Comparing the current outdoor environment temperature T with the outdoor environment temperature T0When the difference value is in a third preset range, the stored outdoor environment temperature is T0The corresponding range of the temperature difference of the inlet water and the outlet water and the range of the water flow value are respectively set as a first preset range and a second preset range, so that the normal range of the current working condition parameters of the water system is determined according to the current outdoor environment temperature T. Preferably, the third preset range is-1 ℃ to 1 ℃, on one hand, the third preset range is not too large, so that the precision of the working condition parameter range of the water system corresponding to the outdoor environment temperature can be ensured to be higher, on the other hand, the third preset range is not too small, the number of the prestored working condition parameter range data can be controlled, and the requirement on the capacity of the memory is reduced.
In any of the above technical solutions, preferably, when the inlet and outlet water temperature difference does not exceed the first preset range and/or the water flow rate Q does not exceed the second preset range, a normal operation reminding signal is sent.
In the technical scheme, when the inlet and outlet water temperature difference value does not exceed a first preset range or the water flow value Q does not exceed a second preset range or the inlet and outlet water temperature difference value and the water flow value Q do not exceed the preset ranges at the same time, the fact that the water flow of the existing air conditioning unit is normal and the water filter is not required to be cleaned is indicated, then a normal operation reminding signal is sent out, and a word of 'normal operation' can be displayed on a display screen of the air source heat pump or a user remote controller, so that a user can know the current operation condition of the air source heat pump.
According to a second aspect of the present invention, there is provided a control system comprising: a first obtaining unit, configured to obtain a water flow rate value Q monitored by the flowmeter, a water temperature T1 at the water inlet detected by the water inlet temperature sensor, and a water temperature T2 at the water outlet detected by the water outlet temperature sensor; the judging unit is used for judging whether the inlet and outlet water temperature difference value of the water temperature T2 and the water temperature T1 exceeds a first preset range or not and whether the water flow value Q exceeds a second preset range or not; and the alarm unit is used for sending an alarm signal for reminding of cleaning the filter when the inlet and outlet water temperature difference value exceeds a first preset range and the water flow value Q exceeds a second preset range.
The control system provided by the invention respectively obtains the water outlet temperature T2 detected by a water inlet temperature sensor arranged at a water inlet of a hydraulic module and a water outlet temperature sensor arranged at a water outlet of the hydraulic module through a first obtaining unit, and obtains the water flow value Q of a pipeline detected by a water flow meter arranged on the pipeline of the hydraulic module water system, a judging unit compares the difference value between the water outlet temperature T2 and the water inlet temperature T1 and the water flow value Q with preset working condition parameters (a first preset range and a second preset range), if the difference value between the water outlet temperature T2 and the water inlet temperature T1 and the water flow value Q simultaneously exceed the preset working condition parameters, an alarm unit sends an alarm signal for reminding to clean a filter, the alarm signal can be a buzzer to prevent the continuous startup operation time, and possibly introduce water pump impurities to block too long and not to stop rotating, finally, the unit is shut down when reporting a water flow fault, so that the impurities in an after-sale service treatment filter and dirt in an air source heat pump water system can be timely reminded to users and manufacturers, the good heat exchange effect of the hydraulic module and the good operation of the water pump in a safe and reliable environment can be ensured, the product quality is improved, and the service life of the unit is prolonged.
The control system according to the present invention may further have the following features:
in the above technical solution, preferably, the storage unit is used for storing the ambient temperature T outside the chamber in advance0The corresponding relation between the range of the difference value of the inlet and outlet water temperatures and the range of the water flow value Q.
In the technical scheme, no matter the air source heat pump unit is a constant speed machine type or a variable frequency machine type, the air source heat pump unit runs in a heating mode in winter or a cooling mode in summer, and has different outdoor environment temperatures T0The corresponding normal inlet and outlet water temperatures have different difference values and different outdoor environment temperatures T0The corresponding normal water flow values Q are different, and the storage unit stores the external environment temperature of the chamber in advance as T0And setting working condition parameters (the allowable range of the inlet and outlet water temperature difference value and the allowable range of the water flow value Q) of the hydraulic module so as to judge whether the current working condition of the hydraulic module is normal or not.
In any of the above technical solutions, preferably, the detection unit is configured to detect the current outdoor environment temperature T when the air-source heat pump operates in the cooling/heating mode.
In the technical scheme, when the air source heat pump operates in a cooling/heating mode, the detection unit detects the current outdoor environment temperature T so as to determine the normal working condition parameter range of the current hydraulic module according to the current outdoor environment temperature.
In any of the above technical solutions, preferably, the second obtaining unit is configured to obtain a current outdoor environment temperature T; a comparison unit for comparing the current outdoor environment temperature T with the outdoor environment temperature T0(ii) a A setting unit for setting the current outdoor environment temperature T and the outdoor environment temperature T0When the difference value is in a third preset range, the outdoor environment temperature T is measured0The corresponding range of the difference value of the inlet and outlet water temperatures and the range of the water flow value are respectively set as a first preset range and a second preset range.
In the technical scheme, before judging whether the difference value between the current water temperature T2 and the current water temperature T1 exceeds a first preset range and whether the current water flow value Q exceeds a second preset range, firstly, a second obtaining unit obtains the detected current outdoor environment temperature T,the comparison unit then compares the current outdoor ambient temperature T with the prestored outdoor ambient temperature T0Comparing the current outdoor environment temperature T with the outdoor environment temperature T0When the difference value is within a third preset range, the setting unit sets the stored outdoor environment temperature to be T0The corresponding range of the temperature difference of the inlet water and the outlet water and the range of the water flow value are respectively set as a first preset range and a second preset range, so that the normal range of the current working condition parameters of the water system is determined according to the current outdoor environment temperature T. Preferably, the third preset range is-1 ℃ to 1 ℃, on one hand, the third preset range is not too large, so that the precision of the working condition parameter range of the water system corresponding to the outdoor environment temperature can be ensured to be higher, on the other hand, the third preset range is not too small, the number of the prestored working condition parameter range data can be controlled, and the requirement on the capacity of the memory is reduced.
In any of the above technical solutions, preferably, the reminding unit is configured to send a normal operation reminding signal when the inlet and outlet water temperature difference does not exceed the first preset range and/or the water flow rate Q does not exceed the second preset range.
In the technical scheme, when the inlet and outlet water temperature difference value does not exceed a first preset range or the water flow value Q does not exceed a second preset range or the inlet and outlet water temperature difference value and the water flow value Q do not exceed the preset ranges at the same time, the fact that the water flow of the existing air conditioning unit is normal and the water filter does not need to be cleaned is indicated, the reminding unit sends a normal operation reminding signal, and a word of 'normal operation' can be displayed on a display screen of the air source heat pump or a user remote controller, so that a user can know the current operation condition of the air source heat pump.
According to a third aspect of the present invention, there is provided a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program: acquiring a water flow value Q monitored by the flowmeter, a water temperature T1 of a water inlet detected by a water inlet temperature sensor and a water temperature T2 of a water outlet detected by a water outlet temperature sensor; judging whether the difference value of the inlet and outlet water temperatures of the water temperature T2 and the water temperature T1 exceeds a first preset range and whether the water flow value Q exceeds a second preset range; and when the inlet and outlet water temperature difference value exceeds a first preset range and the water flow value Q exceeds a second preset range, sending an alarm signal for reminding of cleaning the filter.
The invention provides a computer device, which realizes that when a processor executes a computer program: the method comprises the steps of respectively obtaining water outlet water temperature T2 detected by a water inlet temperature sensor arranged at a water inlet of a hydraulic module and a water outlet temperature sensor arranged at a water outlet of the hydraulic module, obtaining a water flow value Q of a pipeline detected by a water flow meter arranged on a pipeline of a hydraulic module water system, comparing the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q with preset working condition parameters (a first preset range and a second preset range), and if the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q simultaneously exceed the preset working condition parameters, sending an alarm signal for reminding a cleaning filter, wherein the alarm signal can be a buzzer to prevent the continuous start-up operation time from being too long, possibly leading a water pump to be mixed with impurities, to be blocked and not rotated, and finally a set reports a water flow fault to stop, so that a user and an after-sale service treatment filter are reminded in time, and the water pump heat exchanger ensures good heat exchange effect of the hydraulic module and good operation of the water pump in a safe and reliable environment, improves product quality and prolongs service life of the unit.
According to a fourth aspect of the invention, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of: acquiring a water flow value Q monitored by the flowmeter, a water temperature T1 of a water inlet detected by a water inlet temperature sensor and a water temperature T2 of a water outlet detected by a water outlet temperature sensor; judging whether the difference value of the inlet and outlet water temperatures of the water temperature T2 and the water temperature T1 exceeds a first preset range and whether the water flow value Q exceeds a second preset range; and when the inlet and outlet water temperature difference value exceeds a first preset range and the water flow value Q exceeds a second preset range, sending an alarm signal for reminding of cleaning the filter.
The present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements: the method comprises the steps of respectively obtaining water outlet water temperature T2 detected by a water inlet temperature sensor arranged at a water inlet of a hydraulic module and a water outlet temperature sensor arranged at a water outlet of the hydraulic module, obtaining a water flow value Q of a pipeline detected by a water flow meter arranged on a pipeline of a hydraulic module water system, comparing the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q with preset working condition parameters (a first preset range and a second preset range), and if the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q simultaneously exceed the preset working condition parameters, sending an alarm signal for reminding a cleaning filter, wherein the alarm signal can be a buzzer to prevent the continuous start-up operation time from being too long, possibly leading a water pump to be mixed with impurities, to be blocked and not rotated, and finally a set reports a water flow fault to stop, so that a user and an after-sale service treatment filter are reminded in time, and the water pump heat exchanger ensures good heat exchange effect of the hydraulic module and good operation of the water pump in a safe and reliable environment, improves product quality and prolongs service life of the unit.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a flow diagram of a control method of one embodiment of the invention;
FIG. 2 shows a flow diagram of a control method of another embodiment of the invention;
FIG. 3 shows a schematic block diagram of a control system of one embodiment of the present invention;
FIG. 4 shows a schematic block diagram of a control system of another embodiment of the present invention;
FIG. 5 shows a schematic block diagram of a computer device of an embodiment of the present invention;
fig. 6 shows a hydraulic module control principle schematic diagram of an air source heat pump according to an embodiment of the invention.
Reference numerals:
wherein, the correspondence between the reference numbers and the names of the components in fig. 6 is:
602 outdoor unit, 604 end heating equipment, 606 hydro module, 608 drain pipe, 610 flow meter, 612 circulation pump, 614 filter, 616 drain valve, 618 gate valve, 620 tap water valve, 622 inlet temperature sensor, 624 outlet temperature sensor.
Detailed Description
So that the manner in which the above recited aspects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
In an embodiment of the first aspect of the present invention, a control method is provided, and fig. 1 shows a schematic flow chart of the control method according to an embodiment of the present invention:
102, acquiring a water flow value Q monitored by the flowmeter, a water temperature T1 of a water inlet detected by a water inlet temperature sensor and a water temperature T2 of a water outlet detected by a water outlet temperature sensor;
104, judging whether the inlet and outlet water temperature difference value of the water temperature T2 and the water temperature T1 exceeds a first preset range and whether the water flow value Q exceeds a second preset range;
and 106, when the inlet and outlet water temperature difference value exceeds a first preset range and the water flow rate value Q exceeds a second preset range, sending an alarm signal for reminding of cleaning the filter.
The control method provided by the invention comprises the steps of respectively obtaining the water outlet water temperature T2 detected by a water inlet temperature sensor arranged at a water inlet of a hydraulic module and a water outlet temperature sensor arranged at a water outlet of the hydraulic module, obtaining the water flow value Q of a pipeline detected by a water flow meter arranged on a pipeline of a hydraulic module water system, comparing the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q with preset working condition parameters (a first preset range and a second preset range), and if the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q simultaneously exceed the preset working condition parameters, sending an alarm signal for reminding the cleaning of a filter, wherein the alarm signal can be a buzzing sound to prevent the continuous startup operation time from being too long, possibly leading in impurities to a water pump to be blocked and not to rotate, and finally reporting the unit to stop, the water pump realizes timely reminding of users and manufacturers of impurities in the after-sale service treatment filter and cleaning of dirt in the air source heat pump water system, ensures good heat exchange effect of the hydraulic module and good operation of the water pump in a safe and reliable environment, improves product quality and prolongs service life of the unit.
Fig. 2 shows a flow chart of a control method of another embodiment of the present invention. Wherein, the method comprises the following steps:
step 202, storing the ambient temperature T outside the chamber in advance0Corresponding relation between the range of the difference value of the inlet and outlet water temperatures and the range of the water flow value Q;
step 206, acquiring a water flow value Q monitored by the flowmeter, a water inlet water temperature T1 detected by a water inlet temperature sensor and a water outlet water temperature T2 detected by a water outlet temperature sensor;
Step 212, when the current outdoor temperature T and the outdoor temperature T are reached0When the difference value is in a third preset range, the outdoor environment temperature T is measured0The corresponding range of the temperature difference of the inlet water and the outlet water and the range of the water flow value are respectively set as a first preset range and a second preset range;
In one embodiment of the invention, it is preferred that the ambient temperature T outside the reservoir is pre-stored0The corresponding relation between the range of the difference value of the inlet and outlet water temperatures and the range of the water flow value Q.
In the embodiment, no matter the air source heat pump unit is a constant speed machine type or a variable frequency machine type, the air source heat pump unit runs in a heating mode in winter or a cooling mode in summer, and has different outdoor environment temperatures T0The corresponding normal inlet and outlet water temperatures have different difference values and different outdoor environment temperatures T0Corresponding normal water flow values Q are different, and the ambient temperature outside the pre-storage chamber is T0And setting working condition parameters (the allowable range of the inlet and outlet water temperature difference value and the allowable range of the water flow value Q) of the hydraulic module so as to judge whether the current working condition of the hydraulic module is normal or not.
In an embodiment of the present invention, before obtaining the water flow rate value Q monitored by the flow meter, the water temperature T1 of the water inlet detected by the water inlet temperature sensor, and the water temperature T2 of the water outlet detected by the water outlet temperature sensor, it is preferable that: the current outdoor ambient temperature T is monitored while the air-source heat pump is operating in cooling/heating mode.
In this embodiment, when the air-source heat pump operates in the cooling/heating mode, the current outdoor ambient temperature T is detected so as to determine the current normal operating condition parameter range of the hydro module according to the current outdoor ambient temperature.
In an embodiment of the present invention, before determining whether the difference between the current water temperature T2 and the current water temperature T1 is beyond a first preset range and whether the current water flow Q is beyond a second preset range, the method further includes: obtaining the current outdoor environment temperatureDegree T; comparing the current outdoor ambient temperature T with the outdoor ambient temperature T0(ii) a When the current outdoor environment temperature T and the outdoor environment temperature T0When the difference value is in a third preset range, the outdoor environment temperature T is measured0The corresponding range of the temperature difference of the inlet and the outlet water and the range of the water flow value are respectively set as a first preset range and a second preset range.
In this embodiment, before determining whether the difference between the current water temperature T2 and the current water temperature T1 exceeds the first preset range and the current water flow Q exceeds the second preset range, the detected current outdoor environment temperature T is first obtained, and then the current outdoor environment temperature T is compared with the prestored outdoor environment temperature T0Comparing the current outdoor environment temperature T with the outdoor environment temperature T0When the difference value of (a) is within a third preset range (-1 ℃ to 1 ℃), the stored outdoor environment temperature is T0The corresponding range of the temperature difference of the inlet water and the outlet water and the range of the water flow value are respectively set as a first preset range and a second preset range, so that the normal range of the current working condition parameters of the water system is determined according to the current outdoor environment temperature T. Preferably, the third preset range is-1 ℃ to 1 ℃, on one hand, the third preset range is not too large, so that the precision of the working condition parameter range of the water system corresponding to the outdoor environment temperature can be ensured to be higher, on the other hand, the third preset range is not too small, the number of the prestored working condition parameter range data can be controlled, and the requirement on the capacity of the memory is reduced.
In one embodiment of the present invention, preferably, when the difference value of the inlet and outlet water temperatures does not exceed the first preset range and/or the water flow rate Q does not exceed the second preset range, a normal operation reminding signal is sent out.
In this embodiment, when the inlet and outlet water temperature difference does not exceed the first preset range or the water flow value Q does not exceed the second preset range or the inlet and outlet water temperature difference and the water flow value Q do not exceed the preset ranges at the same time, which indicates that the water flow of the existing lighting unit is normal and the water filter is not required to be cleaned, a normal operation reminding signal is sent out, and a word of "normal operation" can be displayed on a display screen of the air source heat pump or a user remote controller, so that a user can know the current operation condition of the air source heat pump.
In an embodiment of the second aspect of the present invention, a control system is proposed, and fig. 3 shows a schematic block diagram of a control system 300 of an embodiment of the present invention:
a first obtaining unit 302, configured to obtain a water flow rate value Q monitored by the flowmeter, a water temperature T1 at the water inlet detected by the water inlet temperature sensor, and a water temperature T2 at the water outlet detected by the water outlet temperature sensor;
the judging unit 304 is configured to judge whether the difference between the inlet water temperature T2 and the outlet water temperature T1 exceeds a first preset range and whether the water flow Q exceeds a second preset range;
and the alarm unit 306 is used for sending an alarm signal for reminding of cleaning the filter when the inlet and outlet water temperature difference value exceeds a first preset range and the water flow rate value Q exceeds a second preset range.
The control system 300 provided by the present invention respectively obtains the water outlet temperature T2 detected by the water inlet temperature sensor arranged at the water inlet of the hydraulic module and the water outlet temperature sensor arranged at the water outlet of the hydraulic module through the first obtaining unit 302, and obtains the water flow value Q of the pipeline detected by the water flowmeter arranged on the pipeline of the hydraulic module water system, the judging unit 304 compares the difference between the water outlet temperature T2 and the water inlet temperature T1 and the water flow value Q with the preset working condition parameters (the first preset range and the second preset range), if the difference between the water outlet temperature T2 and the water inlet temperature T1 and the water flow value Q exceed the preset working condition parameters at the same time, the alarm unit 306 sends an alarm signal for reminding the cleaning of the filter, the alarm signal may be a buzzer, so as to prevent the water pump from continuing to run for a long time, possibly leading the water pump to mix in impurities and block, finally, the unit is shut down when reporting a water flow fault, so that the impurities in an after-sale service treatment filter and dirt in an air source heat pump water system can be timely reminded to users and manufacturers, the good heat exchange effect of the hydraulic module and the good operation of the water pump in a safe and reliable environment can be ensured, the product quality is improved, and the service life of the unit is prolonged.
Fig. 4 shows a schematic block diagram of a control system 400 of another embodiment of the present invention. Among other things, the control system 400 includes:
a first obtaining unit 402, configured to obtain a water flow rate value Q monitored by the flowmeter, a water temperature T1 at the water inlet detected by the water inlet temperature sensor, and a water temperature T2 at the water outlet detected by the water outlet temperature sensor;
the judging unit 404 is configured to judge whether the difference between the inlet water temperature T2 and the outlet water temperature T1 exceeds a first preset range and whether the water flow Q exceeds a second preset range;
the alarm unit 406 is used for sending an alarm signal for reminding of cleaning the filter when the inlet and outlet water temperature difference value exceeds a first preset range and the water flow rate value Q exceeds a second preset range;
a storage unit 408 for storing the ambient temperature T outside the chamber in advance0Corresponding relation between the range of the difference value of the inlet and outlet water temperatures and the range of the water flow value Q;
a detecting unit 410, configured to detect a current outdoor environment temperature T when the air-source heat pump operates in a cooling/heating mode;
a second obtaining unit 412, configured to obtain a current outdoor environment temperature T;
a comparing unit 414 for comparing the current outdoor environment temperature T with the outdoor environment temperature T0；
A setting unit 416 for setting the current outdoor environment temperature T and the outdoor environment temperature T0When the difference value is in a third preset range, the outdoor environment temperature T is measured0The corresponding range of the inlet and outlet water temperature difference value and the range of the water flow value are respectively set as a first preset range and a second preset range;
and the reminding unit 418 is configured to send a normal operation reminding signal when the inlet and outlet water temperature difference value does not exceed the first preset range and/or the water flow rate value Q does not exceed the second preset range.
In one embodiment of the present invention, storage unit 408 is preferably used to pre-store the ambient temperature T outside the chamber0The corresponding relation between the range of the difference value of the inlet and outlet water temperatures and the range of the water flow value Q.
In the embodiment, no matter the air source heat pump unit is a constant speed machine type or a frequency converter type, the air source heat pump unit runs for heating in winter or in summerSeasonal cooling mode, different outdoor ambient temperature T0The corresponding normal inlet and outlet water temperatures have different difference values and different outdoor environment temperatures T0The corresponding normal water flow value Q is different, and the storage unit 408 stores the external environment temperature T in advance0And setting working condition parameters (the allowable range of the inlet and outlet water temperature difference value and the allowable range of the water flow value Q) of the hydraulic module so as to judge whether the current working condition of the hydraulic module is normal or not.
In one embodiment of the present invention, it is preferable that the detecting unit 410 is configured to detect the current outdoor ambient temperature T when the air-source heat pump operates in the cooling/heating mode.
In this embodiment, when the air-source heat pump operates in the cooling/heating mode, the detection unit 410 detects the current outdoor ambient temperature T, so as to determine the current normal operating condition parameter range of the hydro module according to the current outdoor ambient temperature.
In an embodiment of the present invention, preferably, the second obtaining unit 412 is configured to obtain a current outdoor environment temperature T; a comparing unit 414 for comparing the current outdoor environment temperature T with the outdoor environment temperature T0(ii) a A setting unit 416 for setting the current outdoor environment temperature T and the outdoor environment temperature T0When the difference value is in a third preset range, the outdoor environment temperature T is measured0The corresponding range of the difference value of the inlet and outlet water temperatures and the range of the water flow value are respectively set as a first preset range and a second preset range.
In this embodiment, before determining whether the difference between the current water temperature T2 and the current water temperature T1 exceeds the first preset range and the current water flow Q exceeds the second preset range, the second obtaining unit 412 first obtains the detected current outdoor environment temperature T, and then the comparing unit 414 compares the current outdoor environment temperature T with the prestored outdoor environment temperature T0Comparing the current outdoor environment temperature T with the outdoor environment temperature T0When the difference value is within the third preset range, the setting unit 416 sets the stored outdoor environment temperature to T0The range of the temperature difference of the inlet and the outlet water and the range of the water flow value are respectively setAnd determining the normal range of the current water system working condition parameters according to the current outdoor environment temperature T. Preferably, the third preset range is-1 ℃ to 1 ℃, on one hand, the third preset range is not too large, so that the precision of the working condition parameter range of the water system corresponding to the outdoor environment temperature can be ensured to be higher, on the other hand, the third preset range is not too small, the number of the prestored working condition parameter range data can be controlled, and the requirement on the capacity of the memory is reduced.
In an embodiment of the present invention, preferably, the reminding unit 418 is configured to send out a normal operation reminding signal when the difference between the inlet and outlet water temperatures does not exceed the first preset range and/or the water flow rate Q does not exceed the second preset range.
In this embodiment, when the inlet and outlet water temperature difference does not exceed the first preset range or the water flow value Q does not exceed the second preset range or the inlet and outlet water temperature difference and the water flow value Q do not exceed the preset ranges at the same time, which indicates that the water flow of the existing lighting unit is normal and the water filter is not cleaned, the reminding unit 418 sends a normal operation reminding signal, and the word of "normal operation" can be displayed on the display screen of the air source heat pump or the user remote controller, so that the user can know the current operation condition of the air source heat pump.
In a third aspect of the present invention, a computer device is provided, and fig. 5 shows a schematic block diagram of a computer device 500 according to an embodiment of the present invention. Wherein the computer device 500 comprises:
a memory 502, a processor 504, and a computer program stored on the memory 502 and executable on the processor 504, the processor 504 when executing the computer program implementing the steps of: acquiring a water flow value Q monitored by the flowmeter, a water temperature T1 of a water inlet detected by a water inlet temperature sensor and a water temperature T2 of a water outlet detected by a water outlet temperature sensor; judging whether the difference value of the inlet and outlet water temperatures of the water temperature T2 and the water temperature T1 exceeds a first preset range and whether the water flow value Q exceeds a second preset range; and when the inlet and outlet water temperature difference value exceeds a first preset range and the water flow value Q exceeds a second preset range, sending an alarm signal for reminding of cleaning the filter.
In the computer device 500 provided by the present invention, the processor 504, when executing the computer program, implements: the method comprises the steps of respectively obtaining water outlet water temperature T2 detected by a water inlet temperature sensor arranged at a water inlet of a hydraulic module and a water outlet temperature sensor arranged at a water outlet of the hydraulic module, obtaining a water flow value Q of a pipeline detected by a water flow meter arranged on a pipeline of a hydraulic module water system, comparing the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q with preset working condition parameters (a first preset range and a second preset range), and if the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q simultaneously exceed the preset working condition parameters, sending an alarm signal for reminding a cleaning filter, wherein the alarm signal can be a buzzer to prevent the continuous start-up operation time from being too long, possibly leading a water pump to be mixed with impurities, to be blocked and not rotated, and finally a set reports a water flow fault to stop, so that a user and an after-sale service treatment filter are reminded in time, and the water pump heat exchanger ensures good heat exchange effect of the hydraulic module and good operation of the water pump in a safe and reliable environment, improves product quality and prolongs service life of the unit.
An embodiment of the fourth aspect of the present invention provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of: acquiring a water flow value Q monitored by the flowmeter, a water temperature T1 of a water inlet detected by a water inlet temperature sensor and a water temperature T2 of a water outlet detected by a water outlet temperature sensor; judging whether the difference value of the inlet and outlet water temperatures of the water temperature T2 and the water temperature T1 exceeds a first preset range and whether the water flow value Q exceeds a second preset range; and when the inlet and outlet water temperature difference value exceeds a first preset range and the water flow value Q exceeds a second preset range, sending an alarm signal for reminding of cleaning the filter.
The present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements: the method comprises the steps of respectively obtaining water outlet water temperature T2 detected by a water inlet temperature sensor arranged at a water inlet of a hydraulic module and a water outlet temperature sensor arranged at a water outlet of the hydraulic module, obtaining a water flow value Q of a pipeline detected by a water flow meter arranged on a pipeline of a hydraulic module water system, comparing the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q with preset working condition parameters (a first preset range and a second preset range), and if the difference value between the water outlet water temperature T2 and the water inlet water temperature T1 and the water flow value Q simultaneously exceed the preset working condition parameters, sending an alarm signal for reminding a cleaning filter, wherein the alarm signal can be a buzzer to prevent the continuous start-up operation time from being too long, possibly leading a water pump to be mixed with impurities, to be blocked and not rotated, and finally a set reports a water flow fault to stop, so that a user and an after-sale service treatment filter are reminded in time, and the water pump heat exchanger ensures good heat exchange effect of the hydraulic module and good operation of the water pump in a safe and reliable environment, improves product quality and prolongs service life of the unit.
Fig. 6 shows a hydraulic module control principle schematic diagram of an air source heat pump according to an embodiment of the invention.
As shown in fig. 6, the air-source heat pump includes an outdoor unit 602, an end heating device 604, a hydraulic module 606, a drain pipe 608, a flow meter 610, a circulation pump 612, a filter 614, a drain valve 616, a gate valve 618, a tap water valve 620, a water inlet temperature sensor 622, and a water outlet temperature sensor 624. The water inlet and the water outlet of the hydraulic module 606 are respectively provided with a water inlet temperature sensor 622 and a water outlet temperature sensor 624, the water inlet of the hydraulic module 606 is connected with the filter 614 through a pipeline, and the pipeline is provided with a flow meter 610.
In this particular embodiment, the hydraulic module 606 controls the principle as follows: no matter the air source heat pump unit is the constant speed model or the frequency converter model, the unit heats or summer refrigeration mode in winter, through presetting in PCB main control program as table 1 in the outdoor ambient temperature and the operating mode parameter value's of water system corresponding relation:
TABLE 1
When the current operating outdoor environment temperature T4 of the unit is close to a certain group of data in the table (the difference is +/-1 ℃), the detected water flow Q and the inlet and outlet water temperature difference delta T are checked with the group of data. For example: when the temperature T4-3+1 ℃ is not less than T4 not less than T4-3-1 ℃, the detected water flow Q and the water temperature difference delta T are checked with the preset value of the sequence 3, when the water flow Q exceeds the range of Q3 +/-Q3 and the temperature difference delta T of inlet water and outlet water exceeds the range of delta T3 +/-T3, and only if the water flow Q and the temperature difference delta T both meet the condition of exceeding the ranges, an outdoor main control board or a line controller sends out a cleaning reminding alarm signal to remind users and manufacturers of performing after-sale service treatment on impurities in a filter and cleaning dirt in an air source heat pump water system, so that the good heat exchange effect of a hydraulic module and the good operation of a water pump in a safe and reliable environment are ensured, the product quality is improved, and the service life.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A control method is used for controlling a hydraulic module in an air source heat pump, a water inlet and a water outlet of the hydraulic module are respectively provided with a water inlet temperature sensor and a water outlet temperature sensor, the water inlet is connected with a filter through a pipeline, a flow meter is arranged on the pipeline, and the control method is characterized by comprising the following steps:
acquiring a water flow value Q monitored by the flowmeter, the water temperature T1 of the water inlet detected by the water inlet temperature sensor and the water temperature T2 of the water outlet detected by the water outlet temperature sensor;
judging whether the difference value of the inlet and outlet water temperatures of the water temperature T2 and the water temperature T1 exceeds a first preset range and whether the water flow value Q exceeds a second preset range;
when the difference value of the inlet water temperature and the outlet water temperature exceeds the first preset range and the water flow value Q exceeds the second preset range, sending an alarm signal for reminding of cleaning the filter;
the control method further comprises the following steps:
prestorage external environment temperature T0Corresponding relation between the range of the difference value of the inlet and outlet water temperatures and the range of the water flow value Q;
before the obtaining of the water flow rate value Q monitored by the flow meter, the water temperature T1 of the water inlet detected by the water inlet temperature sensor, and the water temperature T2 of the water outlet detected by the water outlet temperature sensor, the method further comprises:
and detecting the current outdoor environment temperature T when the air source heat pump operates in a cooling/heating mode.
2. The control method according to claim 1, wherein before said determining whether the difference between the inlet and outlet water temperatures of the water temperature T2 and the water temperature T1 is beyond a first preset range and the water flow value Q is beyond a second preset range, further comprising:
acquiring the current outdoor environment temperature T;
comparing the current outdoor environment temperature T with the outdoor environment temperature T0；
When the current outdoor environment temperature T and the outdoor environment temperature T0When the difference value is in a third preset range, the outdoor environment temperature T is measured0And the corresponding range of the temperature difference of the inlet and the outlet water and the range of the water flow value are respectively set as the first preset range and the second preset range.
3. The control method according to claim 1 or 2, characterized by further comprising:
and when the inlet and outlet water temperature difference value does not exceed the first preset range and/or the water flow value Q does not exceed the second preset range, sending a normal operation reminding signal.
4. A control system is used for controlling a hydraulic module in an air source heat pump, a water inlet and a water outlet of the hydraulic module are respectively provided with a water inlet temperature sensor and a water outlet temperature sensor, the water inlet is connected with a filter through a pipeline, a flow meter is arranged on the pipeline, and the control system is characterized by comprising:
a first obtaining unit, configured to obtain a water flow rate value Q monitored by the flow meter, a water temperature T1 of the water inlet detected by the water inlet temperature sensor, and a water temperature T2 of the water outlet detected by the water outlet temperature sensor;
the judging unit is used for judging whether the inlet and outlet water temperature difference value of the water temperature T2 and the water temperature T1 exceeds a first preset range or not and whether the water flow value Q exceeds a second preset range or not;
the alarm unit is used for sending an alarm signal for reminding of cleaning the filter when the inlet and outlet water temperature difference value exceeds the first preset range and the water flow value Q exceeds the second preset range;
the control system further comprises:
a storage unit for storing the ambient temperature T outside the chamber in advance0Corresponding relation between the range of the difference value of the inlet and outlet water temperatures and the range of the water flow value Q;
and the detection unit is used for detecting the current outdoor environment temperature T when the air source heat pump operates in a cooling/heating mode.
5. The control system of claim 4, further comprising:
a second obtaining unit, configured to obtain the current outdoor environment temperature T;
a comparison unit for comparing the current outdoor environment temperature T with the outdoor environment temperature T0；
A setting unit for setting the current outdoor environment temperature T and the outdoor environment temperature T0When the difference value is in a third preset range, the outdoor environment temperature T is measured0And the corresponding range of the difference value of the inlet and outlet water temperatures and the range of the water flow value are respectively set as the first preset range and the second preset range.
6. The control system according to claim 4 or 5, characterized by further comprising:
and the reminding unit is used for sending a normal operation reminding signal when the inlet and outlet water temperature difference value does not exceed the first preset range and/or the water flow value Q does not exceed the second preset range.
7. A computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the control method according to any of claims 1 to 3 are implemented when the computer program is executed by the processor.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the control method according to any one of claims 1 to 3.
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| CN109210789B (en) * | 2018-09-21 | 2020-07-31 | 宁波奥克斯电气股份有限公司 | Air source heat pump control method and device and air source heat pump |
| CN110986141B (en) * | 2019-11-13 | 2021-01-29 | 珠海格力电器股份有限公司 | Automatic control method for heat pump heating machine, computer readable storage medium and heating machine |
| CN113834214B (en) * | 2021-09-06 | 2022-11-25 | 宁波奥克斯电气股份有限公司 | Air source heat pump water heater and control method and control device thereof |
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