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High-precision boiler liquid level detector

A detector and high-precision technology, used in buoy liquid level indicators, liquid/fluid solid measurement, instruments, etc., to solve the problems of easy cavitation of sight glasses, mica chip crush damage, and troublesome detection.

Inactive Publication Date: 2021-01-29
李武鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing boiler liquid level detector includes a pipeline connected to the upper and lower ends of the boiler, a gauge body is connected to the pipeline, a number of mirror bodies are arranged longitudinally on both sides of the gauge body, and a graphite sealing gasket is arranged on the upper end of the mirror. The lower end is provided with graphite gasket and mica sheet, and the sight glass body is pressed into the body together with the graphite gasket, mica sheet, and sight glass, and the end of the sight glass body is welded to the end of the meter body. Its shortcoming is that the sight glass body is press-fitted The pressing force in the watch body is not easy to control, and the sight glass is often crushed due to excessive pressure; the pressing force is too small, the seal is not tight, and the sight glass is easy to be cavitated; the mica sheet is often crushed and damaged; The mirror display is a two-color display of steam red and water green. The interface between water and steam is not clear, which brings trouble to the detection and affects the detection effect. There is a floating ball in the center hole of the meter body. When the boiler liquid level rises or falls, the floating ball rises or falls with the liquid level, and it can be displayed intuitively and clearly through the sight glasses set at different heights of the meter body. Therefore, the liquid The location is easy to observe and the detection effect is good. Because the sealing stopper is set at the lower end of the sight glass, the sight glass body and the watch body are threaded, and the upper sight mirror body and the lower sight mirror body are also threaded. The structure is reasonable. The connection is firm and the seal is reliable; however, there are certain technical defects in the actual operation of this patent. Although the liquid level of the floating ball rises or falls, how to ensure the accurate detection of the position of the floating ball; the visual inspection method will be very inaccurate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see Figure 1~4 , a high-precision boiler liquid level detector, including a detector 11, the detector 11 is erected on the boiler 1, the detector 11 is provided with a support frame plate 12, and the support frame plate 12 is arranged on the boiler On the top of the water storage chamber 13, the support frame plate 12 is respectively provided with a first-level water level detector 2 and a second-level water level detector 4, and the first-level water level detector 2 is provided with an installation base 21, and the installation base A support frame 22 is arranged on the seat 21, and a clamping frame 23 is arranged on the front and rear sides of the support frame 22, and a steering roller shaft 24 is installed on the clamping frame 23, and the outer frame of the steering roller shaft 24 has Bogie 26, the bottom end of the bogie 26 is provided with a lower edge bar 27, the bottom end of the lower edge bar 27 is installed with a first floating ball 28, and the steering ...

Embodiment 2

[0035] see figure 2 , this embodiment is further optimized as Embodiment 1. On the basis of it, a transmission gear 25 is also installed on the steering roller shaft 24, and a driven gear 31 is also arranged at the first-stage water level detector 2, and the driven gear The gear 31 is meshed with the transmission gear 25, and the wheel shaft axis of the driven gear 31 is provided with a wheel shaft 32, and the wheel shaft 32 is externally connected with an automatic water replenishing valve.

[0036] In view of the fact that the boiler 1 often has an automatic water replenishment system, the present application is also equipped with a gear transmission device at the primary water level detector 2, which drives the driven gear 31 to move, thereby connecting an automatic water replenishment valve externally; due to the rise or fall of the liquid level, That is, it drives the transmission gear 25 to move, and then drives the roulette shaft 32 through the meshing of the gears to ...

Embodiment 3

[0038] see Figure 5 , this embodiment is a further optimization of Embodiment 1. On the basis of it, the first floating ball 28 and the second floating ball 48 are assembled with corresponding hollow hemispheres 61, and the adjacent hollow hemispheres 61 pass through The closing bolt 62 is locked, and the hollow hemisphere 61 is provided with a cross-shaped support 63 , and an inner ball net 64 is provided between the cross-shaped support 63 and the inner spherical surface of the hollow hemisphere 61 .

[0039] In view of the fact that the surface of the floating ball may have the risk of being sunken in a high-temperature environment, the application provides a cross-shaped bracket 63 in the hollow hemisphere 61, and installs the inner ball net 64 through an internal branch structure, thereby preventing the risk of the spherical surface being sunken .

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PUM

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Abstract

The invention relates to the technical field of high-temperature and high-pressure boiler liquid level detection, in particular to a high-precision boiler liquid level detector which comprises a detector. The detector is erected on a boiler, a supporting frame plate is arranged on the detector, and the supporting frame plate is arranged at the top of a water storage cavity of the boiler. A first-level water level detector and a second-level water level detector are arranged on the supporting frame plate, a mounting base is erected in the first-level water level detector, a steering roller shaft is arranged on the mounting base, a steering frame is erected outside the steering roller shaft, a lower edge rod piece is arranged at the bottom end of the steering frame, and a first floating ballis mounted at the bottom end of the lower edge rod piece. An infrared detector is arranged at the top of the second-level water level detector, a folding connecting frame is installed at the bottom end of the top frame, a lower straight rod is arranged at the bottom end of the folding connecting frame, and a second floating ball is installed at the bottom end of the lower straight rod. The first-stage water level detector and the second-stage water level detector are designed for mutual correction to assist in checking the boiler liquid level positions on the two sides.

Description

technical field [0001] The invention relates to the technical field of high-temperature and high-pressure boiler liquid level detection, in particular to a high-precision boiler liquid level detector. Background technique [0002] The existing boiler liquid level detector includes a pipeline connected to the upper and lower ends of the boiler, a gauge body is connected to the pipeline, a number of mirror bodies are arranged longitudinally on both sides of the gauge body, and a graphite sealing gasket is arranged on the upper end of the mirror. The lower end is provided with graphite gasket and mica sheet, and the sight glass body is pressed into the body together with the graphite gasket, mica sheet, and sight glass, and the end of the sight glass body is welded to the end of the meter body. Its shortcoming is that the sight glass body is press-fitted The pressing force in the watch body is not easy to control, and the sight glass is often crushed due to excessive pressure; ...

Claims

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Application Information

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IPC IPC(8): G01F23/32G01F23/292G01F23/76
CPCG01F23/292G01F23/32G01F23/76
Inventor 李武鹏毛智利吴连梅
Owner 李武鹏