Unlock instant, AI-driven research and patent intelligence for your innovation.

A multifunctional gas density monitor and monitoring system for monitoring temperature difference

A gas density and multi-functional technology, which is applied to determine the specific gravity, instruments, measuring electricity, etc. by measuring the pressure difference.

Active Publication Date: 2022-06-24
SHANGHAI ROYE ELECTRICAL CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is a temperature difference between the two, it will cause errors, and in severe cases, it will affect normal use: false alarm signals
Due to the fact that electrical equipment is sealed, at present, there is no effective method on the market to monitor the temperature difference between the two

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A multifunctional gas density monitor and monitoring system for monitoring temperature difference
  • A multifunctional gas density monitor and monitoring system for monitoring temperature difference
  • A multifunctional gas density monitor and monitoring system for monitoring temperature difference

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] figure 1 and figure 2 It is a schematic structural diagram of a multifunctional gas density monitor for monitoring temperature difference according to the first embodiment. like figure 1 , figure 2 As shown, a multifunctional gas density monitor for monitoring temperature difference includes a mechanical part 1 and an electronic part 2 which is relatively independent from the mechanical part.

[0065]The mechanical part 1 includes: a mechanical part housing 101, and a base 102, an end seat 108, a pressure detector 103 (a Baden tube is used in this case), and a temperature compensation element 104 (this case uses a bimetal), movement 105, pointer 106, dial 1012, signal adjustment mechanism 107, several signal generators 109 (this case uses micro switches). The specific implementation process is as follows: one end of the pressure detector 103 and one end of the temperature compensation element 104 are both fixed on the end seat 108, the other end of the pressure de...

Embodiment 2

[0081] Figure 4 It is a monitoring system composed of a multifunctional gas density monitor based on monitoring temperature difference according to the second embodiment of the present invention. like Figure 4 As shown, a plurality of high-voltage electrical equipment with sulfur hexafluoride gas chambers and a plurality of gas density monitors are connected to the background monitoring terminal through a hub and an IEC61850 protocol converter in turn, wherein each gas density monitor is respectively set in the On the high-voltage electrical equipment of the corresponding sulfur hexafluoride gas chamber.

[0082] Specifically, PC is a background monitoring terminal, HUB is a hub, and Z is a gas density monitor. The background monitoring terminal PC communicates with multiple hubs HUBs (HUB1, HUB2, ... HUBm) through the hub HUB0. Each hub HUB is connected to a group of gas density monitors, such as hub HUB1 is connected to gas density monitors Z11, Z12, ... Z1 n, hub HUB2 ...

Embodiment 3

[0085] Figure 5 It is a monitoring system composed of a multifunctional gas density monitor based on monitoring the temperature difference according to the third embodiment of the present invention. Compared with the second embodiment, this embodiment adds a network switch Gateway, an integrated application server Server, a protocol converter / on-line monitoring intelligent unit ProC.

[0086] In this embodiment, the background monitoring terminal PC is connected to two integrated application servers Server1 and Server2 through the network switch Gateway, and the two integrated application servers Server1 and Server2 are connected to multiple protocol converters / online monitoring intelligence through the station control layer A network and B network. The unit ProC (ProC1, ProC2, ... ProCn) communicates, and the protocol converter / online monitoring intelligent unit ProC communicates with multiple hubs HUB (HUB1, HUB2, ... HUBm) through the R5485 network. Each hub HUB is connec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a multifunctional gas density monitor and a monitoring system for monitoring temperature difference. The gas density monitor includes an intelligent microprocessor, a pressure sensor and a temperature sensor; the intelligent microprocessor collects pressure values, Temperature value and gas density value P 20 , using the average value method to calculate the gas density value monitored within the set time period to obtain an accurate density value P 20DZ准确 , at the same time, the intelligent microprocessor obtains the maximum density value P within the set time period 20max and the minimum density value P 20min , and then get the maximum temperature difference △Tmax corresponding to the time period. The invention can monitor the temperature difference between the gas-insulated electrical equipment and the density relay (or monitor) connected to it, which is beneficial to the type selection of the density relay and the definition of reasonable technical performance requirements, and to improve or reduce the electrical equipment and the density relay The temperature difference between them provides a basis to ensure the safety of the power grid.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a multifunctional gas density monitor and a monitoring system applied to high-voltage and medium-voltage electrical equipment to monitor temperature difference. Background technique [0002] Currently, SF 6 (Sulfur hexafluoride) electrical equipment has been widely used in the power sector, industrial and mining enterprises, and has promoted the rapid development of the power industry. In recent years, with the rapid economic development, the capacity of my country's power system has expanded rapidly. 6 The use of electrical equipment is increasing. SF 6 The role of gas in high-voltage electrical equipment is arc extinguishing and insulation, and SF in high-voltage electrical equipment 6 Density reduction and micro-water content of the gas will seriously affect SF if it exceeds the standard 6 Safe operation of high-voltage electrical equipment: SF 6 A reduction in g...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327G01N9/26
CPCG01R31/3278G01N9/266
Inventor 金海勇夏铁新金海生雷邦文郭正操
Owner SHANGHAI ROYE ELECTRICAL CO LTD