CN202280113U - Novel variable-frequency constant-pressure water supply system - Google Patents
Novel variable-frequency constant-pressure water supply system Download PDFInfo
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Abstract
本实用新型涉及一种新型变频恒压供水系统，包括水泵吸口管、水泵、水泵出口管、压力传感器和变频恒压供水控制装置，所述压力传感器安装在水泵出口管上并与变频恒压供水控制装置电连接，在所述水泵吸口管上安装有一液位传感器和一与吸口管相连通的真空泵，所述液位传感器和真空泵与变频恒压供水控制装置电连接。本实用新型设计科学合理，结构简单，安装方便，并简化了操作过程，降低了劳动强度，有效提高了系统的安全性和可靠性。
The utility model relates to a novel frequency conversion constant pressure water supply system, comprising a water pump suction pipe, a water pump, a water pump outlet pipe, a pressure sensor and a frequency conversion constant pressure water supply control device, the pressure sensor is installed on the water pump outlet pipe and connected with the frequency conversion constant pressure water supply The control device is electrically connected, and a liquid level sensor and a vacuum pump connected with the suction pipe are installed on the suction pipe of the water pump, and the liquid level sensor and the vacuum pump are electrically connected with the variable frequency constant pressure water supply control device. The utility model has scientific and reasonable design, simple structure, convenient installation, simplifies the operation process, reduces labor intensity, and effectively improves the safety and reliability of the system.
Description
技术领域 technical field
本实用新型属于供水设备领域，尤其是一种新型变频恒压供水系统。The utility model belongs to the field of water supply equipment, in particular to a novel frequency conversion constant pressure water supply system.
背景技术 Background technique
恒压供水系统对于市政供水、高层建筑供水和一些特殊用户供水是非常重要的。若城市供水压力过高会引起管路爆裂，压力过低则会使自来水无法到达居住位置较高的居民家中，影响人们的正常生活。又如当发生火警时，若供水压力不足或无水供应，不能迅速灭火，可能引起重大经济损失和人员伤亡。所以采用恒压供水系统，具有较大的经济和社会意义。Constant pressure water supply system is very important for municipal water supply, water supply for high-rise buildings and water supply for some special users. If the pressure of urban water supply is too high, the pipeline will burst, and if the pressure is too low, the tap water will not be able to reach the homes of residents with higher living positions, which will affect people's normal life. Another example is when a fire occurs, if the water supply pressure is insufficient or there is no water supply, the fire cannot be extinguished quickly, which may cause heavy economic losses and casualties. Therefore, the use of constant pressure water supply system has great economic and social significance.
现在所使用的恒压供水系统一般包括储水装置、水泵、水泵吸口管和水泵排出管、安装在水泵排出管上的压力传感器和供水控制装置。目前，供水控制装置多采用变频技术控制水泵电动机的工作，以达到节能的效果。该变频恒压供水控制装置包括PLC控制模块、水泵电动机控制模块、变频调速模块、电源模块。所述压力传感器与PLC控制模块的输入端电连接，电源模块与PLC控制模块、水泵电动机控制模块、变频调速模块的电源输入端电连接，PLC控制模块的输出端与水泵电动机控制模块、变频调速模块电连接，变频调速模块的输出端与水泵电动机控制模块的输入端电连接，水泵电动机控制模块的输出端与水泵电动机电连接。The constant pressure water supply system used now generally includes a water storage device, a water pump, a water pump suction pipe and a water pump discharge pipe, a pressure sensor and a water supply control device installed on the water pump discharge pipe. At present, most water supply control devices use frequency conversion technology to control the work of water pump motors to achieve energy-saving effects. The frequency conversion constant pressure water supply control device includes a PLC control module, a water pump motor control module, a frequency conversion speed regulation module and a power supply module. The pressure sensor is electrically connected to the input end of the PLC control module, the power supply module is electrically connected to the power supply input end of the PLC control module, the water pump motor control module, and the frequency conversion speed regulation module, and the output end of the PLC control module is connected to the water pump motor control module, frequency conversion The speed regulation module is electrically connected, the output end of the frequency conversion speed regulation module is electrically connected with the input end of the water pump motor control module, and the output end of the water pump motor control module is electrically connected with the water pump motor.
在恒压供水系统中，经常会有水泵安装位置高于储水装置的情况，此时由于水泵吸口高于储水装置，需要水泵具有一定的自吸能力才能将水排出。但是，目前所使用的水泵多为离心水泵，无自吸能力，需要人为向管路内灌水才能将储水装置中的水排出，非常费时费力；如果储水装置中存在污物将水泵吸口阻塞，水泵会由于吸入阻力过大而在泵的吸口处产生穴蚀吸，影响水泵的正常使用，严重时还会由于水泵吸空而将水泵烧毁。In the constant pressure water supply system, the installation position of the water pump is often higher than the water storage device. At this time, since the suction port of the water pump is higher than the water storage device, the water pump needs to have a certain self-priming ability to discharge the water. However, most of the water pumps currently used are centrifugal water pumps, which have no self-priming ability. It is necessary to artificially pour water into the pipeline to discharge the water in the water storage device, which is very time-consuming and laborious; if there is dirt in the water storage device, the suction port of the water pump will be blocked. , The water pump will produce cavitation suction at the suction port of the pump due to excessive suction resistance, which will affect the normal use of the water pump. In severe cases, the water pump will be burned due to the suction of the water pump.
发明内容 Contents of the invention
本实用新型的目的在于克服现有技术的不足之处，提供一种能够给水泵自动引水并能够在吸口管出现赃堵时停止水泵运转保证水泵安全的新型变频恒压供水系统。The purpose of this utility model is to overcome the deficiencies of the prior art and provide a new frequency conversion constant pressure water supply system that can automatically divert water to the water pump and stop the operation of the water pump when the suction pipe is blocked to ensure the safety of the water pump.
本实用新型的目的是这样实现的：The purpose of this utility model is achieved in that:
一种新型变频恒压供水系统，包括水泵吸口管、水泵、水泵出口管、压力传感器和变频恒压供水控制装置，所述压力传感器安装在水泵出口管上并与变频恒压供水控制装置电连接，在所述水泵吸口管上安装有一液位传感器和一与吸口管相连通的真空泵，所述液位传感器和真空泵与变频恒压供水控制装置电连接。A new frequency conversion constant pressure water supply system, comprising a water pump suction pipe, a water pump, a water pump outlet pipe, a pressure sensor and a frequency conversion constant pressure water supply control device, the pressure sensor is installed on the water pump outlet pipe and is electrically connected to the frequency conversion constant pressure water supply control device , a liquid level sensor and a vacuum pump connected with the suction pipe are installed on the suction pipe of the water pump, and the liquid level sensor and the vacuum pump are electrically connected with the variable frequency constant pressure water supply control device.
而且，所述变频恒压供水控制装置包括PLC控制模块、水泵电动机控制模块、真空泵电动机控制模块、变频调速模块、电源模块。所述压力传感器和液位传感器与PLC控制模块的输入端电连接，电源模块与PLC控制模块、水泵电动机控制模块、变频调速模块的电源输入端电连接，PLC控制模块的输出端与水泵电动机控制模块、真空泵电动机控制模块和变频调速模块电连接，变频调速模块的输出端与水泵电动机控制模块的输入端电连接，水泵电动机控制模块的输出端与水泵电动机电连接。Moreover, the variable frequency constant pressure water supply control device includes a PLC control module, a water pump motor control module, a vacuum pump motor control module, a frequency conversion speed regulation module, and a power supply module. The pressure sensor and the liquid level sensor are electrically connected to the input end of the PLC control module, the power supply module is electrically connected to the power input end of the PLC control module, the water pump motor control module, and the frequency conversion speed regulation module, and the output end of the PLC control module is connected to the water pump motor The control module, the vacuum pump motor control module and the frequency conversion speed regulation module are electrically connected, the output end of the frequency conversion speed regulation module is electrically connected with the input end of the water pump motor control module, and the output end of the water pump motor control module is electrically connected with the water pump motor.
本实用新型的优点和积极效果是：Advantage and positive effect of the present utility model are:
1、本系统在水泵吸口管上安装有一液位传感器和一与吸口管相连通的真空泵，因此可在系统投入使用时对水泵进行抽真空引水，无需人工引水，因此极大地节省了人力，简化了操作。1. This system is equipped with a liquid level sensor and a vacuum pump connected to the suction pipe on the water pump suction pipe. Therefore, when the system is put into use, the water pump can be vacuumed and water diverted without manual water diversion, which greatly saves manpower and simplifies operation.
2、本系统在水泵吸口管出现脏堵时，会停止水泵的运行，避免水泵的损坏，增加了系统的安全行。2. When the water pump suction pipe is dirty and blocked, the system will stop the operation of the water pump to avoid damage to the water pump and increase the safety of the system.
3、本实用新型设计科学合理，结构简单，安装方便，并简化了操作过程，降低了劳动强度，有效提高了系统的安全性和可靠性。3. The design of the utility model is scientific and reasonable, the structure is simple, the installation is convenient, the operation process is simplified, the labor intensity is reduced, and the safety and reliability of the system are effectively improved.
附图说明 Description of drawings
图1为本实用新型的示意图；Fig. 1 is the schematic diagram of the utility model;
图2为本实用新型变频恒压供水控制装置的原理框图。Fig. 2 is a functional block diagram of the frequency conversion constant pressure water supply control device of the present invention.
具体实施方式 Detailed ways
下面结合附图详细叙述本实用新型的实施例；需要说明的是，本实施例是叙述性的，不是限定性的，不能以此限定本实用新型的保护范围。The embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings; it should be noted that the present embodiments are descriptive, not restrictive, and cannot limit the protection scope of the present utility model with this.
一种新型变频恒压供水系统，如图1所示，包括储水装置1、水泵5、水泵吸口管2、水泵排出管6、安装在水泵排出管上的压力传感器7和变频恒压供水控制装置8。所述变频恒压供水控制装置包括PLC控制模块、水泵电动机控制模块、变频调速模块、电源模块。所述压力传感器与PLC控制模块的输入端电连接，电源模块与PLC控制模块、水泵电动机控制模块、变频调速模块的电源输入端电连接，PLC控制模块的输出端与水泵电动机控制模块、变频调速模块电连接，变频调速模块的输出端与水泵电动机控制模块的输入端电连接，水泵电动机控制模块的输出端与水泵电动机电连接。上述内容均为现有技术，不再赘述。A new frequency conversion constant pressure water supply system, as shown in Figure 1, includes a water storage device 1, a water pump 5, a water pump suction pipe 2, a water pump discharge pipe 6, a pressure sensor 7 installed on the water pump discharge pipe, and a frequency conversion constant pressure water supply control system. device 8. The frequency conversion constant pressure water supply control device includes a PLC control module, a water pump motor control module, a frequency conversion speed regulation module, and a power supply module. The pressure sensor is electrically connected to the input end of the PLC control module, the power supply module is electrically connected to the power supply input end of the PLC control module, the water pump motor control module, and the frequency conversion speed regulation module, and the output end of the PLC control module is connected to the water pump motor control module, frequency conversion The speed regulation module is electrically connected, the output end of the frequency conversion speed regulation module is electrically connected with the input end of the water pump motor control module, and the output end of the water pump motor control module is electrically connected with the water pump motor. The above-mentioned content is the prior art, and will not be repeated here.
本实用新型的创新点在于：The innovation point of the present utility model is:
1、在水泵吸口管上安装有一液位传感器3和一与吸口管相连通的真空泵4，所述液位传感器和真空泵与变频恒压供水控制装置电连接。1. A liquid level sensor 3 and a vacuum pump 4 connected to the suction pipe are installed on the suction pipe of the water pump, and the liquid level sensor and vacuum pump are electrically connected to the frequency conversion constant pressure water supply control device.
2、变频恒压供水控制装置增设一真空泵电动机控制模块，所述液位传感器与PLC控制模块的输入端电连接，电源模块与真空泵电动机控制模块的电源输入端电连接，PLC控制模块的输出端与真空泵电动机控制模块电连接，真空泵电动机控制模块的输出端与真空泵电动机电连接。2. A vacuum pump motor control module is added to the frequency conversion constant pressure water supply control device, the liquid level sensor is electrically connected to the input end of the PLC control module, the power supply module is electrically connected to the power input end of the vacuum pump motor control module, and the output end of the PLC control module It is electrically connected with the vacuum pump motor control module, and the output end of the vacuum pump motor control module is electrically connected with the vacuum pump motor.
该系统的工作原理为：The system works as follows:
起动系统，液位传感器将检测到的水泵吸口管无水的信号送至PLC控制模块，PLC控制模块控制真空泵起动为水泵抽真空引水。待水泵吸口管内充满水后液位传感器将该信息送至PLC控制模块，PLC控制模块发出一控制指令停止真空泵运转，同时向水泵电动机控制模块发出指令，起动水泵，供水系统进入正常工作状态。Start the system, the liquid level sensor will send the detected signal that there is no water in the suction pipe of the water pump to the PLC control module, and the PLC control module will control the start of the vacuum pump to draw water for the pump to vacuum. After the suction pipe of the water pump is filled with water, the liquid level sensor sends the information to the PLC control module, and the PLC control module sends a control command to stop the vacuum pump, and at the same time sends a command to the pump motor control module to start the water pump, and the water supply system enters the normal working state.
当水泵吸口管出现脏堵时，水泵吸口管内的水量减少，当水泵吸口管内的水无法与液位传感器相接触时，液位传感器将检测到的无水的信号送至PLC控制模块，PLC控制模块控制真空泵起动为水泵抽真空引水并停止水泵的运转，当经过一定延时后，水位仍无法达到液位传感器的位置时，系统会发出声光报警，通知操作人员进行故障检查。避免了水泵因吸口脏堵而产生的穴蚀或水泵的烧毁，有效保证了设备的安全，提高了系统的可靠性。When the suction pipe of the water pump is dirty and blocked, the amount of water in the suction pipe of the pump decreases. When the water in the suction pipe of the water pump cannot contact the liquid level sensor, the liquid level sensor sends the signal of no water detected to the PLC control module, and the PLC controls The module controls the start of the vacuum pump to draw water for the pump and stop the operation of the pump. When the water level still cannot reach the position of the liquid level sensor after a certain delay, the system will send out an audible and visual alarm to notify the operator to check the fault. It avoids the cavitation or the burning of the water pump caused by the dirty suction of the water pump, effectively guarantees the safety of the equipment and improves the reliability of the system.
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| CN2011203590515U CN202280113U (en) | 2011-09-23 | 2011-09-23 | Novel variable-frequency constant-pressure water supply system |
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| CN2011203590515U CN202280113U (en) | 2011-09-23 | 2011-09-23 | Novel variable-frequency constant-pressure water supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620343A (en) * | 2017-10-13 | 2018-01-23 | 重庆蒙塔纳科技发展有限公司 | A kind of constant pressure water supply control system for carrying water pump exhaust apparatus |
| CN110953923A (en) * | 2019-12-23 | 2020-04-03 | 信息产业电子第十一设计研究院科技工程股份有限公司 | Control method of process cooling water system |
-
2011
- 2011-09-23 CN CN2011203590515U patent/CN202280113U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620343A (en) * | 2017-10-13 | 2018-01-23 | 重庆蒙塔纳科技发展有限公司 | A kind of constant pressure water supply control system for carrying water pump exhaust apparatus |
| CN110953923A (en) * | 2019-12-23 | 2020-04-03 | 信息产业电子第十一设计研究院科技工程股份有限公司 | Control method of process cooling water system |
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Granted publication date: 20120620 Termination date: 20120923 |