CN204925846U - Integrated monitoring device of switchgear humiture - Google Patents

Abstract

The utility model provides a temperature and humidity integrated monitoring device for switchgear. The system collects the temperature and humidity information of each cabinet through the intelligent temperature and humidity monitoring device installed in the intelligent control cabinet, and the temperature and humidity information is sent to the temperature and humidity monitoring device through an optical fiber. background monitoring system. The utility model realizes the real-time online monitoring of the temperature and humidity of all intelligent control cabinets, and prevents the failure of heating, cooling and dehumidification equipment in the intelligent control cabinet from affecting the normal operation of the intelligent equipment in the intelligent control cabinet and causing accidents.

Description

A temperature and humidity integrated monitoring device for switchgear

【Technical field】

The utility model belongs to the technical field of intelligent on-line monitoring equipment for high-voltage electrical appliances in a smart grid, and in particular relates to an integrated temperature and humidity monitoring device for switchgear for monitoring the environmental state in an intelligent control cabinet.

【Background technique】

Gas-insulated metal-enclosed combined electrical appliances smart components are important components of smart grids. They are important equipment for protecting the safety of power system operations and controlling power system circuits. Therefore, the working environment of smart components is related to the safe operation of equipment. On this basis, the environmental indicators in the intelligent control cabinet have attracted much attention. The intelligent temperature and humidity monitoring system for switchgear is a system for monitoring the environmental status in the intelligent control cabinet.

【Content of utility model】

The purpose of this utility model is to develop a temperature and humidity integrated monitoring device for switchgear. Its function is to monitor the environmental indicators in the intelligent control cabinet, and to ensure that the equipment in the cabinet works in a suitable environment by controlling the temperature and humidity state in the cabinet.

The technical scheme of the utility model is:

A temperature and humidity integrated monitoring device for switchgear, comprising: multiple temperature and humidity monitoring devices, an optical switch, and a temperature and humidity background monitoring system; wherein, the output ports of the multiple temperature and humidity monitoring devices are connected to the optical switch The input end is connected, and the output end of the optical switch is connected with the input end of the temperature and humidity background monitoring system; each of the temperature and humidity monitoring devices includes a temperature sensor for collecting temperature data and a humidity sensor for collecting humidity data, The output end of the temperature and humidity monitoring device is also connected with heating equipment, cooling equipment, and dehumidification equipment.

The temperature and humidity integrated monitoring device of the switchgear further includes a plurality of optical fiber distribution frames, the output end of each temperature and humidity monitoring device is connected to the corresponding optical fiber distribution frame, and is collected in the optical switch through the optical fiber distribution frame .

The temperature and humidity monitoring device includes an A/D conversion module, an isolated power supply module, and a central processing unit module, wherein the output ends of the temperature sensor and the humidity sensor are respectively connected to the input ends of the A/D conversion module, and the A/D The output terminal of the D conversion module is connected to the input terminal of the central processing module, and the input terminal of the central processing module is further connected with an isolated power supply module, and the isolated power supply module is connected with the power supply device.

The temperature and humidity monitoring device further includes a network module and a photoelectric conversion module for uploading the collected temperature data and humidity data to the temperature and humidity background monitoring system.

The temperature and humidity integrated monitoring device of the switchgear adopts the MODBUS protocol based on TCP/IP to transmit the temperature and humidity data, and the temperature and humidity data are transmitted through the optical fiber.

The central processing unit module adopts MSP430F5438 single-chip microcomputer chip.

The temperature and humidity monitoring device adopts an independent power supply device. The power supply device adopts LD05-20B24 chip to convert AC/DC220V to +24V to supply power for the sensor module. IB2405LS and TPS76033 are used in the module to convert +24V to +5V and +3.3V is supplied to each module.

The output of the temperature sensor and the humidity sensor is a voltage signal of 0-5V.

The temperature and humidity monitoring device and the temperature and humidity background monitoring system are connected by optical cables, and optical fiber distribution frames are arranged at both ends of the optical cables.

Compared with the prior art, the utility model has at least the following beneficial effects: the utility model monitors the ambient temperature and ambient humidity in the intelligent control cabinet through the temperature sensor and the humidity sensor, and when the parameter is too high or too low, it can Keep abreast of and adjust the ambient temperature and humidity through heating equipment, cooling equipment, and dehumidification equipment to ensure that the intelligent control cabinet maintains a reasonable temperature and humidity environment. At the same time, the data is also uploaded to the temperature and humidity background monitoring system for subsequent analysis work.

【Description of drawings】

Fig. 1 shows the system connection diagram of the utility model.

Fig. 2 shows the principle diagram of the intelligent temperature and humidity monitoring device in the utility model.

Fig. 3 shows a schematic structural view of the panel of the device of the present invention.

Figure 4 shows a schematic view of the back of the device of the present invention.

【Detailed ways】

Please refer to Figure 1, which is a system connection diagram of the present invention, the system is connected to one or more intelligent temperature and humidity monitoring devices; each intelligent temperature and humidity monitoring device can be connected to a temperature sensor and a humidity sensor ;Each intelligent temperature and humidity monitoring device has 3 independent control outputs, controlling 1 heating device, 1 cooling device and 1 dehumidification device; Wire frame; all intelligent temperature and humidity monitoring devices are summarized through optical switches, and then sent to the temperature and humidity background monitoring system in a unified manner.

As shown in Figure 2, an intelligent temperature and humidity monitoring device is mainly composed of a temperature and humidity acquisition module (i.e. a temperature sensor and a humidity sensor), an A/D conversion module, an isolated power supply module, a central processing unit module, a relay control module, a keyboard module, It consists of a display module, a network module and a photoelectric conversion module. Wherein, the sensor and the intelligent temperature and humidity monitoring device are connected by cables, and the output of the sensor is a voltage signal of 0-5V. The intelligent temperature and humidity monitoring device collects the signal of the sensor, and converts the signal to obtain real-time temperature information and humidity information; the intelligent temperature and humidity monitoring device controls the opening and closing of the relay according to the obtained temperature and humidity data and the temperature and humidity range set in the device, thereby operating The heating, cooling and dehumidification equipment adjust the temperature in the intelligent control cabinet. At the same time, the intelligent temperature and humidity monitoring device sends the collected temperature and humidity data through the optical fiber Ethernet to the temperature and humidity background monitoring system. The temperature and humidity background monitoring system collects data from all intelligent temperature and humidity monitoring devices, processes and stores them. The central control module is mainly used to process the data received by the A/D module. When the temperature and/or humidity data is too high or too low, it can ensure that the intelligent control cabinet maintains a reasonable temperature and humidity environment through heating, cooling, and dehumidification equipment adjustment. At the same time, the central processing module sends the data collected by the temperature and humidity sensor to the temperature and humidity background monitoring system through the network module and the photoelectric conversion module using optical fiber.

The central control module adopts the MSP430F5438 single-chip microcomputer of TI Company, and is mainly responsible for receiving the data collected by the temperature and humidity sensor.

The intelligent temperature and humidity monitoring device adopts an independent power supply system to avoid the influence of external crosstalk of the power supply system on the device. The power supply of the device adopts LD05-20B24 chip, which converts AC/DC220V to +24V to supply power for the sensor module. The module uses IB2405LS And TPS76033 converts +24V to +5V and +3.3V for each module.

The display module is responsible for displaying the currently monitored temperature and humidity values, as well as the operating status of heating, cooling, and dehumidification equipment; the circuit diagram of the relay control module adopts PA1a-5V single-open contact relay, the contact withstand voltage is AC5A250V, and the relay coil is powered by 5V , to control the on-off operation of the contact. In order to control the working status of heating, cooling and dehumidification equipment.

Please refer to Figure 3, Figure 4 shows the appearance and structure of the intelligent temperature and humidity monitoring device. The device is mainly composed of a chassis, a display module, a control keyboard, an alarm status light, a power interface, a control output interface and an optical fiber interface. 1 is the temperature display window, which is displayed by digital tubes; 2 is the humidity display window, which is displayed by digital tubes; 3 is the control keyboard, through which the normal range of temperature and humidity can be set; 4 is the alarm display, which uses 10 alarm lights; 5 In order to control the output interface, this interface can be connected to a relay to expand its control capability; 6 is the power interface; 7 is the optical fiber network interface, which is connected to the background, and each device has 2 sets of optical fiber interfaces; 8 is the grounding interface to ensure the reliable grounding of the device .

The utility model has the following advantages:

1. The utility model can monitor the temperature and humidity in the cabinet in real time, and return the data to the temperature and humidity background monitoring system, so as to realize the real-time monitoring of the temperature in the intelligent switch equipment cabinet and ensure the reliable operation of the intelligent equipment in the intelligent cabinet.

2. The data of the utility model adopts the MODBUS communication protocol based on TCP/IP and is transmitted by optical fiber, which has the advantages of simple communication protocol and no interference in transmission.

3. The utility model uses a database to store temperature and humidity information, and provides functions such as historical viewing of temperature and humidity information, waveform drawing, and trend analysis.

4. The temperature and humidity monitoring device in the utility model is connected with heating, cooling, and dehumidification equipment through standard connector interfaces, and has good versatility.

5. The temperature and humidity monitoring device in the utility model is equipped with an independent isolated power supply system, and the operating status of the entire system is not affected by the operating status of other components in the cabinet, which improves the operating reliability of the device.

6. The temperature and humidity monitoring device in the utility model is equipped with a relay control module, which can directly control the power supply system of the heating, cooling and dehumidification equipment through the relay, so as to realize the rapid start of these equipment.

Claims (9)

1. a humiture integrated monitoring device for switchgear, is characterized in that: comprising: multiple humiture monitoring device, optical switch, and humiture backstage monitoring system; Wherein, the output port of described multiple humiture monitoring device is all connected with the input end of optical switch, and the output terminal of described optical switch is connected with the input end of humiture backstage monitoring system; Humiture monitoring device described in each includes for the temperature sensor of collecting temperature data and the humidity sensor for gathering humidity data, and the output terminal of described humiture monitoring device is also connected with heating device, cooling system, and dehumidification equipment.

2. the humiture integrated monitoring device of switchgear as claimed in claim 1, it is characterized in that: the humiture integrated monitoring device of described switchgear includes multiple fibre distribution frame further, the output terminal of each humiture monitoring device is connected on corresponding fibre distribution frame, is collected in optical switch by fibre distribution frame.

3. the humiture integrated monitoring device of switchgear as claimed in claim 1, it is characterized in that, described humiture monitoring device comprises A/D modular converter, insulating power supply module, and CPU module, wherein, the output terminal of described temperature sensor and humidity sensor is connected to the input end of A/D modular converter, the output terminal of A/D modular converter is connected to the input end of CPU module, the input end of described CPU module is connected with insulating power supply module further, and this insulating power supply module is connected with electric supply installation.

4. the humiture integrated monitoring device of switchgear as claimed in claim 1, it is characterized in that, described humiture monitoring device includes mixed-media network modules mixed-media and photoelectric conversion module further, for the temperature data of collection and humidity data are uploaded to humiture backstage monitoring system.

5. the humiture integrated monitoring device of switchgear as claimed in claim 1, it is characterized in that, the humiture integrated monitoring device of described switchgear adopts the MODBUS protocol transmission humiture data based on TCP/IP, and described humiture data pass through Optical Fiber Transmission.

6. the humiture integrated monitoring device of switchgear as claimed in claim 3, is characterized in that, described CPU module adopts MSP430F5438 singlechip chip.

7. the humiture integrated monitoring device of switchgear as claimed in claim 3, it is characterized in that, described humiture monitoring device adopts independently electric supply installation, this electric supply installation adopts LD05-20B24 chip, AC/DC220V is converted to+24V, for sensor assembly is powered, adopt IB2405LS and TPS76033+24V to be converted to+5V and+3.3V in module and supply modules use.

8. the humiture integrated monitoring device of switchgear as claimed in claim 1, is characterized in that, the voltage signal of what described temperature sensor and humidity sensor exported is 0-5V.

9. the humiture integrated monitoring device of switchgear as claimed in claim 1, it is characterized in that, adopt optical cable to be connected between described humiture monitoring device with humiture backstage monitoring system, optical cable two ends arrange fibre distribution frame.