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

Intelligent measuring and sampling device for generator

A technology of intelligent measurement and sampling devices, which is applied in the direction of measuring devices, measuring device casings, motor generator testing, etc., can solve problems such as complex circuits, being easily affected by harmonics, and unsightly appearance, so as to ensure reliability and transient The effect of good characteristics and fast signal response

Pending Publication Date: 2022-04-22
HUANENG QINGDAO THERMAL POWER CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The intelligent measuring device, because of its strong anti-interference ability, simple circuit, accurate data, and quick response, makes the on-site application intelligent and at the same time more reliable. The current channels between multiple transmitters of traditional transmitters need to be connected in series, The channels need to be connected in parallel, the circuit is complex, the probability of failure increases, and it is not beautiful; the anti-interference ability is poor, the inherent delay is long, and it is easily affected by harmonics
In recent years, there have been many incidents in domestic thermal power generating units due to the distortion of the power signal output by the generator power transmitter, which caused the turbine protection to malfunction, and some even caused the complete stop of the unit, which seriously affected the safe operation of the unit.
At present, the 4-20mA power signal transmitted from the electrical side to the output to DEH, AGC and other control systems generally uses analog power transmitters, which can provide power signals that meet the accuracy requirements when the system is in a steady state. , but when the system has an instantaneous fault (such as lightning strike), the analog power transmitter cannot provide accurate power signals, and tripping accidents caused in recent years have also occurred from time to time

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
  • Intelligent measuring and sampling device for generator
  • Intelligent measuring and sampling device for generator
  • Intelligent measuring and sampling device for generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] refer to Figure 1 to Figure 5 , which is the first embodiment of the present invention, this embodiment provides an intelligent measurement and sampling device for generators, including a turning unit 100; the turning unit 100 includes a turning block 101, a self-locking part 102, an unlocking plate 103, a first card Column 104, second clamping column 105 and different diameter spring 106, self-locking part 102 is arranged on the inside of turning block 101, unlocking plate 103 is arranged in turning block 101 and the left and right ends of unlocking plate 103 protrude outside turning block 101, the first The clamping column 104 and the second clamping column 105 are connected by different diameter springs 106 and the first clamping column 104 is arranged in the overturning block 101, and the second clamping column 105 is arranged outside the overturning block 101, and;

[0036]Sampling unit 200; the sampling unit 200 includes a housing 201, a sampling module 202, an a...

Embodiment 2

[0044] refer to Figure 6 ~ Figure 8 , which is the second embodiment of the present invention, which is based on the previous embodiment. More specifically, the overturning block 101 is provided with a wire hole 101a, a special-shaped groove 101b, a hole groove 101c, a plate groove 101d and a rotating shaft 101e , the wire hole 101a is arranged on the front end face of the turning block 101, the special-shaped groove 101b is arranged in the wire hole 101a and the special-shaped groove 101b passes through the plate groove 101d and connects the self-locking part 102, and the hole groove 101c is arranged on the upper end face of the turning block 101 On the top, the plate groove 101d is arranged inside the turning block 101, and the rotating shaft 101e is connected to the casing 201 by rotation. All are arranged in the special-shaped groove 101b.

[0045] Lock button 102a, track bar 102b, track block 102c, first spring 102d and frame 102e are arranged on self-locking part 102, ...

Embodiment 3

[0049] refer to Figure 9 ~ Figure 11 , is the third embodiment of the present invention. This embodiment is based on the previous embodiment. A slope groove 203a, a first arc-shaped groove 203b and a second arc-shaped groove 203c are also provided in the accommodating groove 203, and the slope groove 203a and the second arc-shaped groove 203c An arc-shaped groove 203b matches the second clamping column 105, and the pressing key 103b passes through the second arc-shaped groove 203c and protrudes out of the housing 201. Since the second clamping column 105 protrudes outside the turning block 101, it rotates in the turning block 101. When the second clamping column 105 will slide along the direction of the first arc groove 203b, because the second clamping column 105 is connected with the different diameter spring 106, when the second clamping column 105 slides to the slope groove 203a, the second clamping column 105 will be snapped into the ramp groove 203a to be stuck, and the...

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 an intelligent measuring and sampling device for a generator. The intelligent measuring and sampling device comprises an overturning unit, the overturning unit comprises an overturning block, a self-locking piece, an unlocking plate, a first clamping column, a second clamping column and a reducing spring, the self-locking piece is arranged in the overturning block, the unlocking plate is arranged in the overturning block, the two ends of the unlocking plate extend out of the overturning block, the first clamping column and the second clamping column are connected through the reducing spring, the first clamping column is arranged in the overturning block, and the second clamping column is arranged in the overturning block. The second clamping column is arranged outside the overturning block; a sampling unit; the sampling unit comprises a shell, a sampling module, a containing groove, a wiring board and a fixing piece, the sampling module is arranged on the shell, the containing groove is formed in the end face of the shell, the wiring board is arranged on the containing groove, the fixing piece is arranged on the shell, and the overturning unit is arranged in the containing groove. The system has the advantages of fast response, strong anti-interference capability and good transient performance, and is enough to be qualified for data acquisition and sampling.

Description

technical field [0001] The invention relates to the field of power transmitters, in particular to an intelligent measurement and sampling device for generators. Background technique [0002] Due to the frequent occurrence of tripping accidents caused by the distortion of analog power transmitters, and the rapid development of power electronics technology and communication technology in power plants, the digital electro-hydraulic regulation system (DEH) has been widely used in the control and regulation of steam turbines in power plants. . With the development of intelligent technology, it is necessary to have good transient performance for power signals and frequency signals, and can transmit signals truly, accurately and quickly no matter in steady state or transient state. Now more and more electrical secondary measurement screens of power plants are also tending to be intelligent. The intelligent measuring device generator intelligent transmission device has good transie...

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 Applications(China)
IPC IPC(8): G01R31/34G01R1/02G01R1/04
CPCG01R31/34G01R1/02G01R1/04
Inventor 赵冉张特特
Owner HUANENG QINGDAO THERMAL POWER CO LTD