Intelligent pump room water shortage protection device
By using a smart pump room water shortage protection device, which utilizes a liquid level sensor and relay control module, the automatic protection problem of railway water supply pump rooms when the water level is too low is solved, preventing the pumps from running dry, protecting the equipment, and improving the reliability and stability of the system.
Patent Information
- Application Number
- CN202520046390.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-09
AI Technical Summary
The railway water supply pump room lacks automatic protection when the water level is too low, which causes the pump to run dry, the motor temperature to rise, and the equipment to be damaged. The existing remote monitoring system cannot cut off the pump control circuit in time.
Design a smart pump station water shortage protection device, including a power supply module, a data acquisition module, a CPU module, a relay control module, a communication module, a display module, and a reserved interface module. It controls the start and stop of the water pump through a liquid level sensor and a relay to achieve automatic protection.
It effectively prevents water pumps from running dry, protects equipment, improves system reliability and stability, and provides protection against water shortages for water pumps.
Smart Images
Figure CN223676479U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of railway water supply pump house maintenance, and relates to a smart pump house water shortage protection device. BACKGROUND
[0002] With the rapid development of railways, the number of railway water supply pump houses is also increasing dramatically, and the data to be monitored is becoming increasingly complex. In the operation process of the existing pump houses, when the water level of the clean water pool is too low, the water pump is caused to idle due to water shortage in the water supply pipeline, and the motor temperature is increased due to long-time idling of the water pump, which may seriously damage the equipment.
[0003] At present, the railway water supply pump house is provided with a remote monitoring system, but lacks a water pump water shortage protection device, and the water pump control circuit cannot be automatically cut off in time when the water pump idles. To solve this problem, a pump house water shortage protection device is developed on the basis of the existing pump house remote monitoring system and is connected to the existing pump house host. The project has small engineering quantity, and the existing pump house equipment does not need to be modified, so the feasibility is good. CONTENT OF THE UTILITY MODEL
[0004] Therefore, in view of the deficiencies of the prior art, the utility model provides a smart pump house water shortage protection device, which comprises a power module (10), a collection module (20), a CPU module (30), a relay control module (40), a communication module (50), a display module (60) and a reserved interface module (70).
[0005] The power module (10) is connected with the acquisition module (20), the liquid level acquisition sensor 1 (21), the liquid level acquisition sensor 2 (22), the CPU module (30), the relay control module (40), the relay 1 (41), the relay 2 (42), the communication module (50), the display module (60) and the reserved interface module (70), converts AC 220V power input into DC 12V, and provides DC 12V working power; the acquisition module (20) is connected with the CPU module (30) through an Ethernet interface, and is used for acquiring the liquid level of the clean water pool in the pump house; the CPU module (30) is connected with the relay control module (40) through an RS485 communication line, and is used for sending a command that the liquid level of the clean water pool is lower than a lower limit or higher than an upper limit; the relay control module (40) has two-way relay control interfaces, and is connected with the relay 1 (41) and the relay 2 (42); if the received command is that the liquid level of the clean water pool is lower than the lower limit, the relay 1 (41) is lifted and the relay 2 (42) is lowered; if the received command is that the liquid level of the clean water pool is higher than the upper limit, the relay 2 (42) is lifted and the relay 1 (41) is lowered; the communication module (50) is connected with the CPU module (30) through an Ethernet interface and connected with the host computer of the pump house through a CAN interface, and is used for sending state data of the clean water pool liquid level acquisition sensor and state data of the relay, and receiving a parameter setting control command of the upper / lower limit of the clean water pool liquid level from the host computer of the pump house; the display module (60) is connected with the CPU module (30) through an RS485 communication line, and is used for displaying clean water pool liquid level data and operating parameters; the reserved interface module (70) is connected with the CPU module (30) through an Ethernet communication line, and is used for system maintenance and upgrading.
[0006] Optionally, the acquisition module (20) has two-way sensor acquisition interfaces, and the liquid level acquisition sensor 1 (21) and the liquid level acquisition sensor 2 (22) are connected through an RS485 communication line; the two liquid level acquisition sensors are installed in the clean water pool, and are redundantly designed; when one-way data is abnormal, the other way sensor can normally operate, so that the reliability and stability of the system are improved.
[0007] Optionally, the relay 1 (41) and the relay 2 (42) are connected with the host computer of the pump house; when the relay 1 (41) is lifted and the relay 2 (42) is lowered, the host computer of the pump house controls the water pump to be turned on; when the relay 2 (42) is lifted and the relay 1 (41) is lowered, the host computer of the pump house controls the water pump to be turned off.
[0008] Optionally, the reserved interface module (70) has two-way communication interfaces, and is used for connecting Type-C and RS485 devices. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1It is a structural block diagram of the intelligent pump house water shortage protection device.
[0010] Figure 2 It is an installation schematic diagram of the intelligent pump house water shortage protection device provided in the embodiment of the utility model. DETAILED DESCRIPTION
[0011] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limit the utility model.
[0012] EMBODIMENT
[0013] Figure 1 It is a structural block diagram of the intelligent pump house water shortage protection device provided in the embodiment of the utility model. Figure 1 The intelligent pump house water shortage protection device comprises a power module (10), an acquisition module (20), a CPU module (30), a relay control module (40), a communication module (50), a display module (60) and a reserved interface module (70), and the pump house host, the water pump and the clean water pool are all existing equipment of the railway water supply pump house. Figure 2 It is an installation schematic diagram of the intelligent pump house water shortage protection device provided in the embodiment of the utility model.
[0014] Reference Figure 1 And Figure 2 The working principle and working process of the whole intelligent pump house water shortage protection device are described.
[0015] The power module (10), the acquisition module (20), the CPU module (30), the relay control module (40), the communication module (50), the display module (60) and the reserved interface module (70) are arranged in the case, and the case is fixed in the existing water supply cabinet.
[0016] The power module (10) is connected with the acquisition module (20), the liquid level acquisition sensor 1 (21), the liquid level acquisition sensor 2 (22), the CPU module (30), the relay control module (40), the relay 1 (41), the relay 2 (42), the communication module (50), the display module (60) and the reserved interface module (70), converts AC 220V power input into DC 12V, and provides DC 12V working power; the acquisition module (20) is connected with the CPU module (30) through an Ethernet interface, and is used for acquiring the liquid level of the clean water pool in the pump house; the CPU module (30) is connected with the relay control module (40) through an RS485 communication line, and is used for sending a command that the liquid level of the clean water pool is lower than a lower limit or higher than an upper limit; the relay control module (40) has two-way relay control interfaces, connects two liquid level alarm relays, and if the received command is that the liquid level of the clean water pool is lower than the lower limit, controls the relay 1 (41) to be pulled up and controls the relay 2 (42) to be pulled down; if the received command is that the liquid level of the clean water pool is higher than the upper limit, controls the relay 2 (42) to be pulled up and controls the relay 1 (41) to be pulled down; the communication module (50) is connected with the CPU module (30) through an Ethernet interface and is connected with the pump house host through a CAN interface, is used for sending clean water pool liquid level acquisition sensor data and liquid level upper / lower limit relay state data, and receiving control commands from the pump house host, such as clean water pool liquid level upper / lower limit parameter setting and device remote debugging, so as to realize remote control of the device; the display module (60) is connected with the CPU module (30) through an RS485 communication line, is used for displaying clean water pool liquid level data and operating parameters, and can set parameters and calibrate time by touch; the reserved interface module (70) is connected with the CPU module (30) through an Ethernet communication line, and is used for system maintenance and upgrading.
[0017] The acquisition module (20) has an analog interface, is used for connecting two liquid level acquisition sensors, the two liquid level acquisition sensors are both installed in the clean water pool and are separated by more than 20 cm, measures real-time liquid level of the clean water pool, and two-way data are uploaded to the CPU module (30); the two liquid level acquisition sensors are designed redundantly, when one-way data is abnormal, the other sensor can normally operate, and the reliability and stability of the system are improved.
[0018] When the pump house host acquires that the relay 2 (42) is pulled up and the relay 1 (41) is pulled down, the pump house host controls the water pump to be turned off, so as to avoid water pump idling at a low water level; when the pump house host acquires that the relay 1 (41) is pulled up and the relay 2 (42) is pulled down, the pump house host controls the water pump to be turned on, so as to realize water shortage protection of the water pump.
[0019] The reserved interface module (70) has two-way communication interfaces, wherein a Type-C interface is used for program updating, and an RS485 interface is used for expanding acquisition sensors.
Claims
1. A water shortage protection device for a smart pump house, characterized in that, include: The power supply module (10), the acquisition module (20), the CPU module (30), the relay control module (40), the communication module (50), the display module (60), and the reserved interface module (70) are included. The power supply module (10) is connected to the acquisition module (20), liquid level acquisition sensor 1 (21), liquid level acquisition sensor 2 (22), CPU module (30), relay control module (40), relay 1 (41), relay 2 (42), communication module (50), display module (60), and reserved interface module (70) to connect the AC power supply module (10). The 220V power input is converted to DC12V to provide DC12V operating power; the acquisition module (20) is connected to the CPU module (30) via an Ethernet interface to acquire the liquid level of the pump room clear water tank; the CPU module (30) is connected to the relay control module (40) via an RS485 communication line to send commands indicating that the liquid level of the clear water tank is below the lower limit or above the upper limit; the relay control module (40) has two relay control interfaces, connected to relay 1 (41) and relay 2 (42). If the relay receives a command indicating that the liquid level of the clear water tank is below the lower limit, relay 1 (41) is activated and relay 2 (42) is deactivated; if the relay receives a command indicating that the liquid level of the clear water tank is below the lower limit, relay 1 (41) is activated and relay 2 (42) is deactivated. When the water level in the pool is higher than the upper limit, relay 2 (42) is activated and relay 1 (41) is deactivated. The communication module (50) is connected to the CPU module (30) via an Ethernet interface and to the pump room host via a CAN interface. It is used to send the status data of the clear water pool level acquisition sensor and the status data of the relays, and to receive the parameter setting control commands for the upper / lower limits of the clear water pool level from the pump room host. The display module (60) is connected to the CPU module (30) via an RS485 communication line. It is used to display the clear water pool level data and operating parameters. The reserved interface module (70) is connected to the CPU module (30) via an Ethernet communication line for system maintenance and upgrades.
2. The water shortage protection device for intelligent pump room according to claim 1, characterized in that, The acquisition module (20) has two sensor acquisition interfaces, which are connected to liquid level acquisition sensor 1 (21) and liquid level acquisition sensor 2 (22) via RS485 communication lines. The two liquid level acquisition sensors are redundantly designed. When one of the data is abnormal, the other sensor can operate normally, thereby improving the reliability and stability of the system.
3. The water shortage protection device for intelligent pump room according to claim 1, characterized in that, The relays 1 (41) and 2 (42) are connected to the pump room host. When the relay 1 (41) is activated and the relay 2 (42) is deactivated, the pump room host controls the water pump to start. When the relay 2 (42) is activated and the relay 1 (41) is deactivated, the pump room host controls the water pump to stop.
4. The water shortage protection device for intelligent pump room according to claim 1, characterized in that, The reserved interface module (70) has two communication interfaces for connecting Type-C and RS485 devices.