WO2020168771A1 - 用于热泵机组的自动补水***以及补水方法 - Google Patents

用于热泵机组的自动补水***以及补水方法 Download PDF

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Publication number
WO2020168771A1
WO2020168771A1 PCT/CN2019/121481 CN2019121481W WO2020168771A1 WO 2020168771 A1 WO2020168771 A1 WO 2020168771A1 CN 2019121481 W CN2019121481 W CN 2019121481W WO 2020168771 A1 WO2020168771 A1 WO 2020168771A1
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Prior art keywords
water
water flow
heat pump
pump unit
main controller
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PCT/CN2019/121481
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English (en)
French (fr)
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罗亚军
杨继坤
陆扬明
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艾默生环境优化技术(苏州)有限公司
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Priority claimed from CN201910132544.6A external-priority patent/CN111609597A/zh
Priority claimed from CN201920227490.7U external-priority patent/CN209944800U/zh
Application filed by 艾默生环境优化技术(苏州)有限公司 filed Critical 艾默生环境优化技术(苏州)有限公司
Publication of WO2020168771A1 publication Critical patent/WO2020168771A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Definitions

  • the present disclosure relates to the field of heat pump units, and in particular to an automatic water replenishment system for heat pump units and a water replenishment method for heat pump units.
  • the heat pump unit system is a device that uses media in nature such as air, water and soil to transfer heat to achieve temperature regulation. Specifically, the heat pump system can transfer heat from the air, soil, or water around the house to the room to heat the indoor air, thereby realizing the role of heating in winter. In addition, in summer, the heat pump system can transfer indoor heat to the surrounding environment of the house, so as to reduce the indoor temperature.
  • the mechanical automatic water supply valve is widely used.
  • the principle of the mechanical automatic water replenishment valve is: if the water pressure difference before and after the valve reaches the valve opening pressure, then the water system of the heat pump is short of water. At this time, under the action of the water pressure difference, the water in the tap water pipe will automatically replenish Into the water system, until the water pressure difference decreases, the water supply valve is closed.
  • the purely mechanical make-up valve works solely on the pressure difference before and after the make-up valve.
  • This kind of water supplement valve has no detection induction system, and no feedback system, which is an open-loop control system. If the pressure difference between the front and rear of the water make-up valve always exists, it will supply water to the system without restriction. Therefore, this purely mechanical water supplement valve has a major drawback: if there is a large water leakage on the user's water system side, because the pressure difference between the front and rear of the valve always exists, the mechanical water supplement valve will continue to supply water. This may cause the water in the user-side water system to continuously leak, which will eventually cause the user's house to be soaked by water and the entire heat pump system will fail.
  • the present disclosure aims to provide an automatic water replenishment system and water replenishment method for heat pump units with automatic detection and automatic alarm functions and capable of realizing reasonable water replenishment.
  • an automatic water supplement system for a heat pump unit includes: a water flow detection device, which is used to monitor the water flow in the water flow pipeline of the heat pump unit to determine whether the water flow pipeline needs to be supplemented, and sends a water supplement signal when the water flow pipeline needs to be supplemented;
  • the water supply valve is opened when water supply is needed to supply water to the water flow pipeline;
  • the main controller the main controller is connected with the water flow detection device and the water supply valve through electrical communication, and the main controller is configured to control the water supply according to the judgment information of the water flow detection device
  • the opening and closing of the valve where the main controller opens the water replenishment valve when receiving the water replenishment signal;
  • the locking device the locking device is configured to perform the lock of the heat pump unit, wherein, after replenishing water for a predetermined number of times within a predetermined time, If the water flow detection device still determines that the water flow pipeline needs to be supplemented, the main controller determines that the heat pump unit has
  • the automatic water supplement system also includes an alarm device, which is configured to send an alarm signal when the main controller determines that the heat pump unit has a leak.
  • the locking device is configured to perform locking of the heat pump unit after receiving an alarm signal from the alarm device.
  • the water flow detection device is a water flow switch.
  • the main controller includes a water supplement control module for receiving a water supplement signal and controlling the water supplement process.
  • a heat pump unit having the above-mentioned automatic water supplement system is provided.
  • a method for replenishing water for a heat pump unit by using the above-mentioned automatic water replenishment system includes: a determining step: using a water flow detection device to monitor the water flow in the water flow pipeline of the heat pump unit to determine whether it is necessary Replenish the water flow pipeline; water replenishment step: When the water flow detection device determines that it is necessary to replenish the water flow pipeline, it sends a water replenishment signal to the main controller of the automatic water replenishment system, and the main controller opens the water replenishment valve to replenish the water flow pipe according to the water replenishment signal Replenish water; lock step: after repeating the predetermined number of replenishing steps within a predetermined time, if the water flow detection device still determines that the water flow pipeline needs to be refilled, the main controller determines that the heat pump unit is leaking and locks the entire heat pump The unit is locked.
  • the method further includes: after receiving the water supplement signal, the main controller stops each device of the heat pump unit and sends an opening instruction to the water supplement valve. Alternatively, after the heat pump unit stops running for a preset shutdown time, the main controller sends an opening command to the water supplement valve.
  • the method further includes: after automatically replenishing water to the water flow pipeline for a preset replenishing time, the main controller closes the replenishing valve.
  • the determining step includes: when the water flow switch determines that it is not necessary to replenish the water flow pipeline, the water flow switch is closed, the water replenishment valve is closed, and the heat pump unit operates normally.
  • the method further includes: after repeating the water replenishment step for a predetermined number of times within a predetermined time, if the water flow detection device still determines that the water flow pipeline needs to be refilled, the alarm device sends an alarm signal, and after the alarm signal is issued, the heat pump The unit is locked.
  • a computer-readable medium for performing the above method is provided.
  • Fig. 1 is a schematic diagram showing an exemplary connection pipeline of a heat pump unit according to the present disclosure.
  • Fig. 2 is a schematic diagram of the connection of the main controller of the automatic water supplement system according to an embodiment of the present disclosure.
  • Fig. 3 is a control flowchart of the automatic water supplement system according to an embodiment of the present disclosure.
  • the heat pump system usually includes a heat exchange side and a user side.
  • the heat exchange side is used to heat or cool the water supplied to the user side through, for example, heat exchange between refrigerant and water to meet the heat demand of the user side.
  • the heat exchange side usually has a heat exchanger, a refrigerant pipe, and a water pipe.
  • the user side usually includes air conditioning components such as a fan coil assembly and/or a geothermal assembly. The heated or cooled water flows in the fan coil assembly and/or the geothermal assembly to heat or cool the environment on the user side.
  • Fig. 1 shows a schematic diagram of a fluid connection pipeline of an exemplary heat pump system according to the present disclosure.
  • the heat pump system according to the present disclosure has a heat exchanger 2, a refrigerant pipe 3, a water pipe 4, a water pump 5, and a water expansion tank 6 on the heat exchange side, and also includes a water supplement valve 1.
  • the water make-up valve 1 is used to add water to the heat pump system before the initial startup of the system or when the system leaks.
  • the heat pump system according to the present disclosure can adopt an electronically controlled automatic water supplement valve.
  • the downstream of the water make-up valve 1 (in this context, upstream and downstream refer to the upstream and downstream in the direction of water or refrigerant flow) is also provided with a check valve 7 to prevent the water in the system from flowing through the water-up valve in reverse. 1 in.
  • a water filter 12 for filtering impurities in the water to be input to the heat pump system is provided upstream of the water supplement valve 1.
  • a ball valve 13 is also provided upstream of the water filter 12 upstream of the water supplement valve.
  • a water flow detection device is provided in the water flow pipeline 4. Here, the water flow detection device is a water flow switch 19, and the water flow switch 19 is used to detect the water flow in the heat pump system.
  • a water expansion tank 6 is provided downstream of the check valve 7, and the water expansion tank 6 is used to balance the water pressure fluctuations in the water circulation pipeline.
  • a water pump 5 for pumping water to the heat exchanger 2 is provided downstream of the water expansion tank 6.
  • a water inlet temperature sensor 8 and a water outlet temperature sensor 9 are respectively provided on the inlet side and the outlet side of the heat exchanger. The water inlet temperature sensor 8 and the water outlet temperature sensor 9 are respectively used to measure the water temperature on the water inlet side and the water outlet side of the heat exchanger.
  • a water tank 10 for storing water flowing in the heat pump system is provided in the outdoor water circuit on the user side.
  • An exhaust valve 101 and a pressure buffer valve 102 are provided on the water tank 10 to balance the pressure in the water tank.
  • an anti-vibration connecting portion 11 and a drain valve 18 are provided in the water circuit.
  • a fan coil assembly 14 and a floor heating assembly 15 for adjusting the indoor temperature on the user side are provided in the room on the user side.
  • valves, tanks, and sensors are described above in terms of upstream and downstream of the water flow, those skilled in the art should understand that these devices can be deleted or added according to specific conditions, and these devices can be adjusted according to specific conditions. s position. The above-mentioned adjusted implementations all fall within the protection scope of the present disclosure.
  • the heat pump system according to the present disclosure has the functions of automatic detection and automatic judgment.
  • the water flow detection device provided in the water circuit of the heat pump system according to the present disclosure can detect the water flow in the user-side water system, generate corresponding electrical signals, and send the detected information to the main controller. If the judgment result is that the water flow in the water flow pipe of the heat pump unit is insufficient, the main controller will open the water supplement valve to replenish water to the heat pump system; if the judgment result is that the water flow pipe is sufficient, there is no need to replenish water to the heat pump unit. The water supply valve is closed.
  • the automatic detection and water replenishment system of the heat pump unit system further includes the following judgment process: after a predetermined replenishment cycle within a predetermined time, if the water flow detection device still judges that the water in the water flow pipeline is insufficient, the heat pump unit is explained If there is water leakage in the water flow pipeline, the heat pump system is no longer supplied with water, and the main controller locks the entire heat pump unit. In this way, it is possible to prevent the possibility that the user will be flooded when the user's side water system leaks while still refilling the water.
  • the automatic water replenishment system can use an existing water flow switch in the water flow pipeline of the heat pump unit, and the water flow switch can be configured by default in the heat pump unit system to avoid the water pump being damaged due to changes in water flow.
  • the water supplement logic of the main controller is based on the signal input of the water flow switch, so no additional components and costs are added.
  • the main controller 20 is connected with devices such as the water flow switch 19, the water pump 5, the water supplement valve 1, the heat exchanger 2, the fan coil 14, and the locking device 30 in a communication manner.
  • the water flow switch 19 may be a target water flow switch. When water flows through the target water flow switch, the baffle in the target water flow switch will deflect. The water flow switch sends an open or closed signal according to the preset water flow. The water flow switch 19 is turned off when the water flow in the water flow pipeline is less than the set water flow, so as to send a water supplement signal to the main controller 20.
  • the main controller 20 sends instructions to each executive component connected to it to stop or close to stop the entire heat pump unit, and sends instructions to the water supply valve 1 to open it to supply water to the heat pump unit . After a predetermined number of water replenishment cycles are performed within a predetermined time, if the main controller still receives the water replenishment signal from the water flow switch, the main controller sends an instruction to the locking device 30 to stop the entire heat pump unit and lock the machine.
  • the main controller according to the present disclosure includes a water supplement control module for controlling the above-mentioned water supplement process.
  • Fig. 3 shows a flowchart of an automatic water replenishment method according to an embodiment of the present disclosure.
  • the hydrating method includes the following steps.
  • Step S00 The water flow switch monitors the current water flow in the water flow pipeline of the heat pump unit. For example, the water flow switch monitors the water flow Qc in the water flow pipeline.
  • Step S10 When the water flow switch detects that the current water flow rate Qc is less than the predetermined water flow rate (ie, the water flow rate required by the system) Qp, it is determined that the amount of water in the water flow pipe is insufficient, and the water flow switch is turned off and sends out to the main controller indicating the water flow pipe. Water supply signal Ss for insufficient internal water flow.
  • the predetermined water flow rate ie, the water flow rate required by the system
  • Step S11 After receiving the water supplement signal Ss, the main controller sends instructions to various execution devices such as compressors, fans, and water pumps to stop or close these devices, that is, stop the entire heat pump unit;
  • Step S12 Main control The device sends a command to the water make-up valve 1 to open it, thereby starting to make up water to the heat pump unit.
  • Tc preset shutdown time
  • the main controller sends a command to the water pump to start running, and at the same time sends a command to the water makeup valve 1 to open it, thereby giving the heat pump unit Replenish water.
  • Step S13 Automatic water replenishment preset After water replenishment time Ts, for example, 10-50 seconds after automatic water replenishment, the main controller sends a command to the water replenishment valve to close it, and at the same time sends a command to the water pump to continue to run so that the heat pump unit continues to run. After that, return to step S00. If the water flow in the water flow pipeline of the heat pump unit is sufficient, the water flow switch is closed, and the main controller no longer sends the water replenishment command to the water replenishment valve, the water replenishment valve is closed, and the heat pump unit operates normally, namely: Step S20. If the water flow in the water flow pipe of the heat pump unit still does not meet the requirements, repeat the above steps S10-S13.
  • the monitoring result of the water flow switch shows that the water volume in the heat pump unit system still does not meet the requirements
  • the main controller determines that there is a leak in the system, and the alarm device sends out an alarm signal to stop the entire heat pump unit and lock the entire heat pump unit by the locking device, that is, step S30.
  • the detection time for the main controller to detect whether the water flow switch is open or closed may be 2-10 seconds, and the time may be determined according to the requirements of a specific system. For other heat pump units, the detection time is not limited to the above range.
  • the heat pump unit can make use of the time gap between the alarm recovery of the detection element and the system restart to replenish water, so that no additional time consumption is generated, and can respond to the water replenishment demand more quickly, thereby realizing more reasonable water replenishment.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

本公开涉及一种用于热泵机组的自动补水***及其补水方法。该自动补水***包括水流检测装置、补水阀、锁定装置和主控制器。水流检测装置用于监测热泵机组的水流管路中的水流量以判定是否需要对水流管路进行补水，在需要对水流管路进行补水时发出补水信号。主控制器构造成根据水流检测装置发出的补水信号使补水阀打开以向热泵机组补水。其中，在预定时间内重复执行了预定次数的补水之后，如果水流检测装置仍然判定需要对水流管路进行补水时，主控制器确定热泵机组存在泄漏并由锁定装置锁定整个热泵机组。

Description

用于热泵机组的自动补水***以及补水方法
本申请要求以下中国专利申请的优先权：于2019年02月22日提交中国专利局的申请号为201910132544.6、发明创造名称为“用于热泵机组的自动补水***以及补水方法”的中国专利申请；以及于2019年02月22日提交中国专利局的申请号为201920227490.7、发明创造名称为“用于热泵机组的自动补水***”的中国专利申请。上述专利申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及热泵机组领域，并且具体地涉及一种用于热泵机组的自动补水***以及对热泵机组进行补水方法。
背景技术
本部分的内容仅提供了与本公开相关的背景信息，其不一定是现有技术。
热泵机组***是一种利用自然界中的例如空气、水和土壤之类的介质转移热量以实现温度调节的设备。具体地，热泵***能够将住宅周围的空气、土壤或水中的热量转移至室内以对室内空气进行加热，从而实现冬季供暖的作用。此外，在夏季，热泵***能够将室内的热量转移至住宅周围的环境中，从而能够实现室内温度的降低。
在热泵***中，首次安装这种热泵***之后或者在运行过程中发生泄漏后需要对***进行补水。补水时需要将自来水对接到热泵的水***中，所以需要一个补水阀来完成这项工作。
目前，应用比较广泛的是机械式的自动补水阀。机械式的自动补水阀的原理是：如果阀前后的水压差达到了开阀压力，那么代表热泵的水***缺水，此时在水压差的作用下，自来水管中的水会自动补到水***中，直到水压差降低，补水阀关闭。
纯机械式的补水阀单纯靠的是补水阀前后的压差进行工作的。这种补水阀没有检测感应***，也没有反馈***，属于开环控制***。如果补水阀的前后压差一直存在，就会向***毫无限制地补水。所以这种纯机械式的补水阀存在一个比较大的弊端是：如果用户水***侧发生较大的水泄漏，由于阀前后的压 差始终存在，那么机械式的补水阀将会持续补水。这样可能造成用户侧水***中的水不断地泄漏，最终会导致用户的房子会被水泡掉，整个热泵***失效。
发明内容
为了克服现有技术中存在的上述缺陷，本公开旨在提供一种用于热泵机组的具有自动检测和自动报警功能、能够实现合理补水的自动补水***和补水方法。
根据本公开一方面提供了一种用于热泵机组的自动补水***。该自动补水***包括：水流检测装置，水流检测装置用于监测热泵机组的水流管路中的水流量以判定是否需要对水流管路进行补水，在需要对水流管路进行补水时发出补水信号；补水阀，在需要补水时打开以向水流管路补水；主控制器，主控制器与水流检测装置和补水阀以电通信的方式联接，主控制器构造成根据水流检测装置的判定信息控制补水阀的打开和关闭，其中，主控制器当收到补水信号时使补水阀打开；锁定装置，锁定装置构造成执行热泵机组的锁定，其中，在预定时间内重复执行了预定次数的补水之后，如果水流检测装置仍然判定需要对水流管路进行补水时，主控制器确定热泵机组存在泄漏并由锁定装置锁定整个热泵机组。
其中，自动补水***还包括报警装置，报警装置构造成在主控制器确定热泵机组存在泄漏时发出报警信号。
其中，锁定装置构造成在接收到报警装置的报警信号之后执行热泵机组的锁定。
其中，水流检测装置为水流开关。
其中，主控制器包括用于接收补水信号并控制补水过程的补水控制模块。
根据本公开的另一方面提供了一种具有上述自动补水***的热泵机组。
根据本公开的又一方面提供了一种利用上述自动补水***对热泵机组进行补水的方法，该方法包括：判定步骤：利用水流检测装置监测热泵机组的水流管路中的水流量以判定是否需要对水流管路进行补水；补水步骤：当水流检测装置判定需要对水流管路进行补水时向自动补水***的主控制器发送补水信号，主控制器根据补水信号而打开补水阀以对水流管路进行补水；锁定步骤：在预定时间内重复执行了预定次数的补水步骤之后，如果水流检测装置仍然判 定需要对水流管路进行补水时，主控制器确定热泵机组存在泄漏并通过锁定装置使整个热泵机组锁定。
其中，该方法还包括：主控制器收到补水信号后使热泵机组的各个设备停止运行并向补水阀发出打开指令。替代性地，在热泵机组停止运行预设停机时间之后，主控制器向补水阀发出打开指令。
其中，该方法还包括：向水流管路自动补水预设补水时间之后，主控制器关闭补水阀。
其中，判定步骤包括：当水流开关判定不需要对水流管路进行补水时，水流开关闭合，补水阀关闭，热泵机组正常运行。
其中，该方法还包括：在预定时间内重复执行了预定次数的补水步骤之后，如果水流检测装置仍然判定需要对水流管路进行补水时，由报警装置发出报警信号，发出报警信号之后，将热泵机组锁定。
根据本公开的又一方面提供了一种用于执行上述方法的计算机可读介质。
附图说明
本文中所描述的附图仅出于示出示例性实施方式的目的而并非意在限制本公开的范围。
图1是示出了根据本公开的示例性的热泵机组的连接管路的示意图。
图2是根据本公开的实施方式的自动补水***的主控制器的联接示意图。
图3是根据本公开的实施方式的自动补水***的控制流程图。
具体实施方式
热泵***通常包括热交换侧和用户侧。热交换侧用于通过例如制冷剂与水之间的热交换对供应至用户侧的水进行加热或冷却以满足用户侧的热量需求。热交换侧通常具有热交换器、制冷剂管路和水管路。用户侧通常包括诸如风机盘管组件和/或地热组件之类的空气调节部件。被加热或冷却的水在风机盘管组件和/或地热组件中流动以对用户侧的环境进行加热或冷却。
图1示出了根据本公开的示例性的热泵***的流体连接管路的示意图。具体地，根据本公开的热泵***在热交换侧具有热交换器2、制冷剂管路3、水管路4、水泵5和水膨胀箱6，并且还包括补水阀1。该补水阀1用于在*** 初始启动之前或者在***出现漏水时向热泵***补充水。根据本公开的热泵***能够采用电控式自动补水阀。补水阀1的下游(本文中的上游、下游指的是沿水或制冷剂流动的方向上的上游、下游)还设置有止回阀7用以防止***中的水反向流动穿过补水阀1中。在补水阀1的上游设置有用以过滤待被输入至热泵***中的水中的杂质的水过滤器12。在补水阀的上游的水过滤器12的上游还设置有球阀13。在水流管路4中设置有水流检测装置。在此，水流检测装置为水流开关19，该水流开关19用于检测热泵***中的水流量。
在热交换侧，在止回阀7的下游设置有水膨胀箱6，该水膨胀箱6用以平衡水循环管路中的水压波动。在水膨胀箱6下游设置有用于将水泵送至热交换器2的水泵5。在热交换器的入口侧和出口侧分别设置有水入口温度传感器8和水出口温度传感器9。该水入口温度传感器8和水出口温度传感器9分别用以测量热交换器的水入口侧和水出口侧的水温。
如图1所示，在用户侧的室外的水回路中设置有用以存储热泵***中流动的水的水箱10。在水箱10上设置有排气阀101和压力缓冲阀102，用以平衡水箱中的压力。并且在水回路中设置有抗振连接部11以及排放阀18。在用户侧的室内设置有用于调节用户侧的室内温度的风机盘管组件14和地暖组件15。
尽管上文中以水流的上游、下游的方式说明了各个阀、箱以及传感器的位置，然而本领域的技术人员应该理解可以根据具体情况对这些器件进行删除或者添加，而且可以根据具体情况调整这些器件的位置。上述这些调整的实施方式均落入本公开的保护范围之内。
为了克服现有技术中对热泵机组进行补水时不能及时检测所存在的泄漏而造成用户侧被淹的缺陷，根据本公开的热泵***具有自动检测和自动判断的功能。具体地，根据本公开的热泵***在水回路中设置的水流检测装置能够检测用户侧水***中的水流量，产生相应的电信号并且将检测到的信息发送给主控制器。如果判断结果为热泵机组的水流管路中的水流量不足，则主控制器会使补水阀打开以向热泵***补水；如果判断结果为水流管路中的水量充足，则不用向热泵机组补水，补水阀关闭。进一步地，根据本公开的热泵机组***的自动检测和补水***还包括如下判断过程：在预定时间内经过预定次补水循环后，如果水流检测装置仍判定水流管路中水量不足，则说明热泵机组的水流管 路中存在漏水情况，则不再向热泵***补水，主控制器使整个热泵机组锁定。通过这种方式，可以防止用户侧水***发生泄漏时仍进行补水而造成用户被淹的可能性。
根据本公开的自动补水***可以利用热泵机组的水流管路中已有的水流开关，该水流开关可以是热泵机组***为了避免水流量变化而造成水泵被破坏的情况而默认配置的。主控制器的补水逻辑是根据水流开关的信号输入进行的，因此并没有增加额外的部件及成本。
下面，将结合附图对根据本公开的自动补水***的工作原理进行更详细的介绍。如图2所示，主控制器20与诸如水流开关19、水泵5、补水阀1、热交换器2、风机盘管14以及锁定装置30之类的装置以通信的方式联接。水流开关19可以是靶式水流开关。当水流过靶式水流开关时，靶式水流开关内的挡板会发生偏转。水流开关根据预先设定的水流量发出断开或闭合的信号。水流开关19在水流管路中的水流量小于设定的水流量时断开，从而向主控制器20发出补水信号。主控制器20根据水流开关19发出的补水信号向与其联接的各个执行部件发指令使其停止或关闭以使整个热泵机组停止运行，并且向补水阀1发指令使其打开以向热泵机组进行补水。在预定时间内进行了预定次数的补水循环之后，如果主控制器仍收到水流开关发出的补水信号，则主控制器向锁定装置30发送指令使整个热泵机组停止运行并锁机。根据本公开的主控制器包括用以控制上述补水过程的补水控制模块。
图3示出了根据本公开的实施方式的自动补水方法的流程图。该补水方法包括如下步骤。步骤S00：水流开关监测热泵机组的水流管路中的当前的水流情况。例如，水流开关监测水流管路中的水流量Qc。步骤S10：水流开关当检测到当前的水流量Qc小于预定水流量(即，***要求的水流量)Qp时判定水流管路中水量不足，水流开关断开并向主控制器发出表示水流管路内水流量不足的补水信号Ss。步骤S11：主控制器收到该补水信号Ss后向诸如压缩机、风机和水泵等各个执行器件发出指令，使这些器件停止运行或者关闭，即：使整个热泵机组停止运行；步骤S12：主控制器向补水阀1发出命令使其打开，从而开始向热泵机组补水。替代性地，在整个热泵机组关闭预设停机时间Tc之后，例如2-10分钟之后，主控制器向水泵发出命令使其开始运行，同时向补水阀1发出命令使其打开，从而向热泵机组补水。步骤S13：自动补水预设 补水时间Ts之后，例如自动补水10-50秒后，主控制器向补水阀发出命令使其关闭，同时向水泵发出命令使其继续运转以使热泵机组继续运行。此后，返回步骤S00，如果热泵机组的水流管路内的水流量充足，则水流开关闭合，主控制器不再向补水阀发送进行再次补水命令，补水阀关闭，热泵机组正常运行，即：步骤S20。如果热泵机组的水流管路内的水流量仍不满足要求，则重复上述步骤S10-S13。
进一步地，如果在预定时间内上述步骤S10-S13进行了预定次数之后，例如，在1个小时内重复上述步骤3次之后，水流开关的监测结果显示热泵机组***内的水量仍不满足要求，则主控制器判定***内存在泄漏，则报警装置发出报警信号，进而使整个热泵机组停止运行并由锁定装置将整个热泵机组锁定，即：步骤S30。
其中，主控制器检测水流开关是断开或者闭合的检测时间可以为2-10秒，该时间可以根据特定***的要求确定。针对其他热泵机组该检测时间不限于上述范围。
根据本公开的热泵机组能够利用检测元件报警恢复和***重启的时间空档进行补水，这样不产生额外的时间耗费，能够更快速的响应补水需求，因此能够实现更合理的补水。
为了详细地描述本公开而公开了示例性的联接和/或构型。为了更透彻地对本公开进行说明，提供了对特定细节比如特定部件、结构和方法的详细描述。然而，对于本领域的普通技术人员来说明显的是，不一定要采用特定细节，这些示例性联接和/或构型可以以许多不同形式来实施，并且这些特定细节和示例性构型不应该被解释为限制本公开的范围。
附图标记
1 补水阀
2 热交换器
3 制冷剂管路
4 水流管路
5 水泵
6 水膨胀箱
7 止回阀
8 水入口温度传感器
9 水出口温度传感器
10 水箱
101 排气阀
102 压力缓冲阀
11 抗振连接件
12 水过滤器
13 球阀
14 风机盘管
15 地暖组件
16 双向阀
17 压力平衡阀
18 排放阀
19 水流开关
20 主控制器
30 锁定装置

Claims (14)

  1. 一种用于热泵机组的自动补水***，所述自动补水***包括：
    水流检测装置，所述水流检测装置用于监测所述热泵机组的水流管路中的水流量以判定是否需要对所述水流管路进行补水，在需要对所述水流管路进行补水时发出补水信号；
    补水阀，在需要补水时打开以向所述水流管路补水；
    主控制器，所述主控制器与所述水流检测装置和所述补水阀以电通信的方式联接，所述主控制器构造成根据所述水流检测装置的判定信息控制所述补水阀的打开和关闭，其中，所述主控制器当收到所述补水信号时使所述补水阀打开；
    锁定装置，所述锁定装置构造成执行所述热泵机组的锁定；
    其中，在预定时间内重复执行了预定次数的补水之后，如果所述水流检测装置仍然判定需要对所述水流管路进行补水时，所述主控制器确定所述热泵机组存在泄漏并由所述锁定装置锁定整个所述热泵机组。
  2. 根据权利要求1所述的自动补水***，其中，所述自动补水***还包括报警装置，所述报警装置构造成在所述主控制器确定所述热泵机组存在泄漏时发出报警信号。
  3. 根据权利要求2所述的自动补水***，其中，所述锁定装置构造成在接收到所述报警装置的所述报警信号之后执行所述热泵机组的锁定。
  4. 根据权利要求1至3中任一项所述的自动补水***，其中，所述水流检测装置为水流开关。
  5. 根据权利要求1至3中任一项所述的自动补水***，其中，所述主控制器包括用于接收所述补水信号并控制补水过程的补水控制模块。
  6. 一种具有根据权利要求1至5所述的自动补水***的热泵机组。
  7. 一种利用权利要求1至5中的任一项所述的自动补水***对热泵机组进行补水的方法，所述方法包括：
    判定步骤：利用所述水流检测装置监测所述热泵机组的水流管路中的水流量以判定是否需要对所述水流管路进行补水；
    补水步骤：当所述水流检测装置判定需要对所述水流管路进行补水时向所述自动补水***的所述主控制器发送补水信号，所述主控制器根据所述补水信号而打开所述补水阀以对所述水流管路进行补水；
    锁定步骤：在预定时间内重复执行了预定次数的所述补水步骤之后，如果所述水流检测装置仍然判定需要对所述水流管路进行补水时，所述主控制器确定所述热泵机组存在泄漏并通过锁定装置使整个所述热泵机组锁定。
  8. 根据权利要求7所述的方法，其中，所述方法还包括：
    所述主控制器收到所述补水信号后使所述热泵机组的各个设备停止运行并向所述补水阀发出打开指令。
  9. 根据权利要求7所述的方法，其中，所述方法还包括：
    所述主控制器收到所述补水信号后使所述热泵机组的各个设备停止运行；
    在所述热泵机组停止运行预设停机时间之后，所述主控制器向所述补水阀发出打开指令。
  10. 根据权利要求7所述的方法，其中，所述方法还包括：
    向所述水流管路自动补水预设补水时间之后，所述主控制器关闭所述补水阀。
  11. 根据权利要求7所述的方法，其中，所述水流检测装置为水流开关。
  12. 根据权利要求11所述的方法，其中，所述判定步骤包括：当所述水流开关判定不需要对所述水流管路进行补水时，所述水流开关闭合，所述补水阀关闭，所述热泵机组正常运行。
  13. 根据权利要求7所述的方法，其中，所述方法还包括：在所述主控制器确定所述热泵机组存在泄漏时，由报警装置发出报警信号。
  14. 一种用于执行权利要求7至13中所述的方法的计算机可读介质。
PCT/CN2019/121481 2019-02-22 2019-11-28 用于热泵机组的自动补水***以及补水方法 WO2020168771A1 (zh)

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