WO2021012884A1 - Procédé et appareil de commande de vidange automatique de pompe à eau, dispositif correspondant, et support d'informations - Google Patents

Procédé et appareil de commande de vidange automatique de pompe à eau, dispositif correspondant, et support d'informations Download PDF

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Publication number
WO2021012884A1
WO2021012884A1 PCT/CN2020/098666 CN2020098666W WO2021012884A1 WO 2021012884 A1 WO2021012884 A1 WO 2021012884A1 CN 2020098666 W CN2020098666 W CN 2020098666W WO 2021012884 A1 WO2021012884 A1 WO 2021012884A1
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WO
WIPO (PCT)
Prior art keywords
water pump
operation state
determined
load
collected
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Application number
PCT/CN2020/098666
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English (en)
Chinese (zh)
Inventor
张秋俊
凌威
巨姗
汪春节
施芬芬
Original Assignee
珠海格力电器股份有限公司
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Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Publication of WO2021012884A1 publication Critical patent/WO2021012884A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers

Definitions

  • the present disclosure relates to the technical field of electromechanical control, and in particular, to a control method, device corresponding equipment and storage medium of an automatic emptying water pump.
  • Water pumps usually work underwater, and the working environment is poor, often causing failures. Therefore, it is necessary to set a protection function for the water pump.
  • the embodiments of the present disclosure provide a control method, device corresponding equipment, and storage medium for automatically emptying a water pump, so as to at least solve at least one of the above-mentioned related technologies.
  • the present disclosure provides a water pump control method, the method includes:
  • the water pump is operated and protected.
  • the operating protection of the water pump according to the determined load operating state includes:
  • a start-stop cycle control method is adopted to control the operation of the water pump.
  • a start-stop cycle control method to control the operation of the water pump includes:
  • the water pump is controlled to cyclically operate in an alternate manner of running and stopping.
  • the determining the load operating state of the water pump according to the collected operating parameter value includes:
  • the load operating state of the water pump is determined.
  • the determining the load operation state of the water pump according to the collected water pump rotation speed value and the rotation speed interval corresponding to each load operation state includes:
  • the n is the collected rotational speed value of the water pump
  • the n1 is the pre-collected rotational speed value of the water pump in the no-load operation state
  • the n2 is the pre-collected rotational speed of the water pump at rated water discharge Value
  • the ⁇ n is a preset rotational speed error threshold
  • the n3 is a preset rotational speed threshold.
  • the collection of operating parameter values of the water pump includes
  • the water pump rotation speed value is collected through a preset water pump rotation speed detection device; the water pump rotation speed detection device is one or more of the following:
  • the determining the load operating state of the water pump according to the collected operating parameter value includes:
  • the I is the collected current value of the water pump
  • the I1 is the pre-collected current value of the water pump in the no-load operating state
  • the I2 is the pre-collected current of the water pump at the rated water discharge Value
  • the ⁇ I is a preset current error threshold
  • the I3 is a preset current threshold.
  • a water pump control device which includes:
  • the collection module is set to collect the operating parameter values of the pump
  • the state determination module is set to determine the load operation state of the water pump according to the collected operating parameter values
  • the protection module is set to perform operation protection on the water pump according to the determined load operation state.
  • the protection module includes:
  • the first protection unit is configured to control the water pump to stop operation according to the time when the water pump is in the corresponding load operation state when it is determined that the water pump is in the no-load operation state, stuck or locked-rotor operation state;
  • the second protection unit is configured to use a start-stop cycle control method to control the operation of the water pump when it is determined that the water pump has air.
  • the present disclosure further provides a device, which includes the control device of the water pump as described above.
  • the present disclosure provides a computer storage medium that stores a control program of a water pump, and the program can be executed by at least one processor to realize the operation of the water pump as described in any one of the above Control method steps.
  • the application of the technical solution of the present disclosure realizes the direct determination of the load operation status of the pump based on the direct collection of the operating parameter values of the pump, and then the operation protection of the pump, instead of indirectly determining the load of the pump based on the collection of water flow, pressure and other signals
  • the operation status effectively improves the detection accuracy during the operation and protection of the pump, effectively simplifies the existing detection method, and effectively reduces the detection cost.
  • Fig. 1 is a flowchart of a control method for automatically emptying a water pump according to an embodiment of the present disclosure
  • Figure 2 is a schematic structural diagram of a submersible pump according to an embodiment of the present disclosure
  • Figure 3 is a flowchart of a control method for optionally automatically emptying a water pump according to an embodiment of the present disclosure
  • Fig. 4 is a schematic structural diagram of a water pump control device according to an embodiment of the present disclosure.
  • Fig. 1 is a flowchart of a control method for automatically emptying a water pump according to an embodiment of the present disclosure. As shown in Fig. 1, the method includes the following steps:
  • Step S101 collecting operating parameter values of the water pump
  • Step S102 Determine the load operating state of the water pump according to the collected operating parameter values
  • Step S103 Perform operation protection on the water pump according to the determined load operating state.
  • the operating parameters belong to the direct operating parameters of the water pump, such as rotational speed and current.
  • the load operation state may include no-load operation state, stuck operation state, locked-rotor operation state, etc.
  • the water pump speed value can be collected through a preset water pump speed detection device; the water pump speed detection device is one or more of the following: Hall sensor, reed switch, photoelectric sensor.
  • the water pump may be a submersible pump. As shown in FIG. 2, the submersible pump may include a water inlet, a water outlet, a drain cavity, and a water pump controller. The method in the embodiment of the present disclosure may be executed in the water pump controller.
  • the embodiments of the present disclosure collect preset operating parameter values of the water pump, and determine the load operation state of the water pump according to the collected operating parameter values, and then perform operation protection on the water pump according to the determined load operation state, thereby achieving According to the direct collection of the operating parameter values of the water pump, the load operation status of the water pump is directly determined, and then the operation protection of the water pump is carried out, instead of indirectly determining the load operation status of the water pump based on the collection of water flow, pressure and other signals, thereby effectively improving the pump
  • the detection accuracy rate in the operation protection process effectively simplifies the existing detection methods and effectively reduces the detection cost.
  • the operating protection of the water pump according to the determined load operating state may include:
  • a start-stop cycle control method is adopted to control the operation of the water pump until the water pump is in a normal load operation state, then the start-stop cycle control method is stopped.
  • the time of the corresponding load operating state includes no-load operating time, stuck or locked-rotor operating time.
  • the start-stop cycle can also be described as the start-stop cycle.
  • the water pump when it is determined that the water pump is in a no-load operation state, that is, the water pump is no-load operation.
  • the no-load operation time exceeds the preset no-load time threshold (preferably 5 minutes), the power supply of the water pump is cut off and the water pump is stopped. , Realize the no-load protection of the pump.
  • the stuck or locked-rotor operation time exceeds the preset stuck Or the blocking time threshold (preferably 5 minutes), the power supply of the water pump is cut off, the operation of the water pump is stopped, and the blocking or blocking protection of the water pump is realized.
  • the start-stop cycle control method when it is determined that the water pump has air, it is necessary to operate the emptying mode, that is, the start-stop cycle control method is adopted to control the operation of the water pump.
  • the pump can be quickly emptied, effectively solving the situation that the pump is slow or unable to pump water.
  • a start-stop cycle control method to control the operation of the water pump may include:
  • the water pump is controlled to run repeatedly in a cycle of alternating running and stopping.
  • control the water pump to run for a preset running time (preferably 3 seconds) and stop the preset stop time (preferably 3 seconds), and run intermittently and repeatedly, and at the same time, it can also detect the speed. Run, exit the drain mode operation and enter the continuous operation state.
  • the determining the load operating state of the water pump according to the collected operating parameter value includes:
  • the load operating state of the water pump is determined.
  • determining the load operation state of the water pump according to the collected water pump rotation speed value and the rotation speed interval corresponding to each load operation state includes:
  • the n is the collected rotational speed value of the water pump
  • the n1 is the pre-collected rotational speed value of the water pump in the no-load operation state
  • the n2 is the pre-collected rotational speed of the water pump at rated water discharge
  • the ⁇ n is a preset rotational speed error threshold
  • the n3 is a preset rotational speed threshold, preferably 250.
  • the determining the load operation state of the water pump according to the collected operating parameter values may also include:
  • the I is the collected current value of the water pump
  • the I1 is the pre-collected current value of the water pump in the no-load operating state
  • the I2 is the pre-collected current of the water pump at the rated water discharge Value
  • the ⁇ I is a preset current error threshold
  • the I3 is a preset current threshold.
  • the following uses a Hall sensor as an example to describe in detail the control method of the automatic emptying pump in the embodiment of the present disclosure.
  • control method for automatically emptying the water pump may include:
  • S202 Detect the speed of the water pump.
  • the hall sensor is used to sense the rotation speed of the rotor magnetic field, and the actual rotation speed of the water pump rotor is calculated by the number of output pulses.
  • S203 Determine the load operation state of the water pump according to the collected operating parameter value, and perform operation protection on the water pump according to the determined load operation state.
  • the rotation speed error threshold ⁇ n (generally 50 to 80, preferably 50 rotations) is set.
  • n>n1- ⁇ n it is judged that the pump is running without load.
  • the no-load operation time exceeds a certain time (preferably 5 minutes)
  • the power supply of the water pump is cut off, and the operation of the water pump is stopped to realize the water pump No-load protection.
  • the speed of the water pump will decrease.
  • n1- ⁇ n ⁇ n>n2- ⁇ n it is determined that there is air in the pump and the drain mode is required.
  • the drain mode means that the pump runs for a certain time (preferably 3 seconds) ) Stop for a certain period of time (preferably 3 seconds), run intermittently and repeatedly, and at the same time check the speed.
  • the speed n2-250 ⁇ n ⁇ n2- ⁇ n it is determined that the pump has entered normal load operation and exits the emptying mode operation. Enter the continuous operation state.
  • n ⁇ n2-250 it is judged that the water pump is stuck or blocked.
  • the temperature rise is too high, which affects the service life of the water pump.
  • the stuck or locked-rotor operation time exceeds a certain time (preferably 5 minutes)
  • the power supply of the water pump is cut off, and the operation of the water pump is stopped to realize the stuck water pump. Or stall protection.
  • the detection accuracy in the process of pump operation protection is effectively improved, the existing detection methods are effectively simplified, and the detection cost is effectively reduced; and the pump can be quickly emptied, effectively solving the problem of slow pumping or failure of pumping.
  • this embodiment provides a control device for the automatic emptying of the water pump, and the device includes:
  • the collection module 10 is set to collect the operating parameter values of the water pump
  • the state determining module 12 is configured to determine the load operating state of the water pump according to the collected operating parameter values
  • the protection module 14 is configured to perform operation protection on the water pump according to the determined load operation state.
  • the protection module 14 includes:
  • the first protection unit is configured to control the water pump to stop operation according to the time when the water pump is in the corresponding load operation state when it is determined that the water pump is in the no-load operation state, stuck or locked-rotor operation state;
  • the second protection unit is configured to use a start-stop cycle control method to control the operation of the water pump when it is determined that the water pump has air.
  • the water pump is controlled to cyclically operate in an alternate manner of running and stopping.
  • the operating parameter value is a water pump speed value
  • the state determining module 12 is specifically configured to determine the load at which the water pump is located according to the collected water pump speed value and the speed interval corresponding to each load operating state. Operating status.
  • determining the load operation state of the water pump according to the collected water pump rotation speed value and the rotation speed interval corresponding to each load operation state may include:
  • the n is the collected rotational speed value of the water pump
  • the n1 is the pre-collected rotational speed value of the water pump in the no-load operation state
  • the n2 is the pre-collected rotational speed of the water pump at rated water discharge
  • the ⁇ n is a preset rotational speed error threshold
  • the n3 is a preset rotational speed threshold.
  • the collection module 10 is specifically configured to collect the water pump rotation speed value through a preset water pump rotation speed detection device; the water pump rotation speed detection device is one or more of the following:
  • the I is the collected current value of the water pump
  • the I1 is the pre-collected current value of the water pump in the no-load operating state
  • the I2 is the pre-collected current of the water pump at the rated water discharge
  • the ⁇ I is a preset current error threshold
  • the I3 is a preset current threshold.
  • An embodiment of the present disclosure provides a device, which includes a water pump control device as described in any one of the second embodiment.
  • An embodiment of the present disclosure provides a computer storage medium that stores a control program for a water pump, and the program can be executed by at least one processor to implement the method for controlling a water pump as described in any one of the first embodiment A step of.
  • the present disclosure directly collects the rotation speed of the water pump, so as to realize the lock-rotation and idling protection of the water pump.
  • the load of the pump is determined, and the cycle start-stop control method is adopted to enable the pump to be drained quickly and solve the situation that the pump is slow or unable to pump water.
  • the main core points of this disclosure are:

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

L'invention concerne un procédé et un appareil de commande de la vidange automatique d'une pompe à eau, un dispositif correspondant, et un support d'informations. Le procédé consiste : à acquérir des valeurs prédéfinies des paramètres de fonctionnement d'une pompe à eau ; à déterminer un état de fonctionnement en charge de la pompe à eau en fonction des valeurs acquises des paramètres de fonctionnement ; et à effectuer une protection de fonctionnement sur la pompe à eau en fonction de l'état de fonctionnement en charge déterminé. Selon le procédé et l'appareil de commande de la vidange automatique d'une pompe à eau, le dispositif correspondant, et le support d'informations, l'état de fonctionnement en charge de la pompe à eau est déterminé directement en fonction des valeurs des paramètres de fonctionnement de la pompe à eau acquises directement, de sorte que le fonctionnement de la pompe à eau soit protégé ; au lieu de déterminer indirectement l'état de fonctionnement en charge de la pompe à eau en fonction de signaux acquis tels que le débit et la pression de l'écoulement d'eau, le taux de précision de détection dans le procédé de protection du fonctionnement de la pompe à eau est amélioré efficacement, un mode de détection existant est simplifié, et les coûts de détection sont réduits.
PCT/CN2020/098666 2019-07-23 2020-06-29 Procédé et appareil de commande de vidange automatique de pompe à eau, dispositif correspondant, et support d'informations WO2021012884A1 (fr)

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CN201910667957.4 2019-07-23
CN201910667957.4A CN110332102B (zh) 2019-07-23 2019-07-23 自动排空水泵的控制方法、装置相应设备及存储介质

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CN110332102B (zh) * 2019-07-23 2021-08-20 珠海格力电器股份有限公司 自动排空水泵的控制方法、装置相应设备及存储介质
CN110594168A (zh) * 2019-10-11 2019-12-20 珠海格力电器股份有限公司 一种水泵的控制方法及控制装置
CN110617208A (zh) * 2019-10-18 2019-12-27 峰岧科技(上海)有限公司 直流无刷水泵及其空载保护方法
CN112166252B (zh) * 2019-11-05 2023-05-30 深圳市大疆创新科技有限公司 水泵的排气控制方法、可移动设备、喷洒装置及存储介质
CN111054688B (zh) * 2019-12-31 2020-08-04 浙江万得凯流体设备科技股份有限公司 一种超声波清洗装置的控制方法
CN111503013B (zh) * 2020-05-09 2020-10-30 蜂巢动力系统(江苏)有限公司 一种电子水泵干转保护方法
CN111734648A (zh) * 2020-06-16 2020-10-02 珠海格力电器股份有限公司 一种水泵的排气控制方法、装置、电子设备及存储介质
CN111734652B (zh) * 2020-07-13 2021-07-27 珠海格力电器股份有限公司 水泵运行控制方法、装置、系统及家电设备
CN115264744B (zh) * 2021-04-30 2024-05-28 佛山市顺德区美的电子科技有限公司 空调器的控制方法、空调器及空调器的控制装置
CN114483562B (zh) * 2022-02-09 2023-03-21 宁波方太厨具有限公司 水泵的故障检测方法、系统、电子设备和存储介质

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