CN2287297Y

CN2287297Y - Universal magnet buoy

Info

Publication number: CN2287297Y
Application number: CN 96232310
Authority: CN
Inventors: 朱丹; 叶浩源; 贡建岗; 金海鸥
Original assignee: CHANGZHOU ENERGY SOURCE FACILITIES GENERAL FACTORY
Current assignee: CHANGZHOU ENERGY SOURCE FACILITIES GENERAL FACTORY
Priority date: 1996-07-10
Filing date: 1996-07-10
Publication date: 1998-08-05
Anticipated expiration: 2006-07-10

Abstract

The utility model relates to a universal magnetic buoy belonging to the important monitoring components of level gauges in various channels, cans and towers in industry, medicine, etc. The utility model comprises a casing, a magnetic force source arranged in the casing, a ventilating pipe arranged in the casing and a protection cover with vent holes. The magnetic force source is extruded, positioned and fixed to the axial position of the inner wall of the casing in axial position according to medium density. The utility model is free from pressure limitation and is suitable for various mediums of different medium density. The utility model has the function of automatic liquor drainage and has the advantages of thin casing wall, less material consumption, light weight, simple and reasonable structure, simple manufacturing process, low cost, etc.

Description

General magnetic buoy

The utility model relates to a kind of general magnetic buoy, belongs to liquid level monitoring vitals in all kinds of grooves of industry such as oil, chemical industry, medicine, light industry, jar, the tower.

At present, all kinds of liquid level gauges are buoys of making different length according to different medium density, make the buoy of different housings thickness according to different pressure, and processing and manufacturing is inconvenience very, and when pressure greater than 6.4mPa, Media density less than 1g/cm ³The time, just can't make at all.

China utility model patent CN87207917U discloses a kind of " high pressure resistant thin-walled open type float ", solve height and forced down the Media density problem, but, the through hole of this patent is nearer apart from liquid level, when the less and level fluctuation of Media density, medium is very easy to enter float inside through through hole, thereby causes float to sink; When Media density is 0.3 gram per centimeter ³The time, entering 4 gram media, buoy will sink 10 millimeters, finally cause buoy to sink; The non-round transition arcs of its protective cover, the float in the lifting is easily stuck.

Order of the present utility model ground is to avoid the above-mentioned weak point of prior art and a kind of general magnetic buoy that adapts to various pressure and Media density and have the automatic drain function is provided.

The purpose of this utility model realizes by following technical proposal.

The utility model includes shell and protective cover, and the following cylinder of shell at the bottom of by the ladder female cap, cylindrical shell and the circular arc that have mesopore welds successively to be made, and shell is made by stainless aluminium or teflon.

Be provided with the circular magnetic inductive block that has the hole in the cylindrical shell (2), the magnetic signal of magnetic inductive block is convertible into the display that electric signal, light signal or mechanical motion signal are given liquid level gauge, realizes measurement and control to liquid level.Magnetic inductive block is connected with magnetic support through securing member, and the magnetic inductive block upper and lower faces is provided with magnet steel, and the last magnetosheath and the following magnetosheath that are enclosed within on the magnet steel are threaded with magnetic support.According to different medium density, magnetic inductive block periphery extruding positioning and fixing is on the different axial locations of cylinder inboard wall, and the variation of magnetic inductive block axial location in cylindrical shell can adapt to the requirement of liquid level gauge different medium density.

The ladder female cap that has mesopore has the circular arc protective cover of pore with securing member connection one.The protective cover pore is as the inside and outside equipressure of buoy under condition of work.The circular arc protective cover can make buoy in the lifting of liquid level gauge body interior freely.The ladder female cap is convenient to cooperate with protective cover.One snorkel passes ladder female cap mesopore (16) and magnetic inductive block hole (18), and its lower end mouth of pipe touches cylinder to the circular arc, and its upper end mouth of pipe is away from the peak of ladder female cap, and snorkel welds with ladder female cap mesopore (16).

When working temperature reduction or maloperation, medium may enter buoy inside, adopts the snorkel lower end to touch the beneath cylinder of circular arc, uses pascal's principle, and the medium in the buoy is discharged automatically.

The utility model compared with prior art has following advantage:

1, the utility model is used Archimedes principle, and buoy buoyancy equals to arrange the volume of this liquid, equals the buoy dead weight simultaneously, is formulated:

F＝ρ·v (1)

In F=G (2) formula: F-buoyancy,

ρ-Media density,

The V-buoy arranges liquid volume,

The deadweight of G-buoy.Remain unchanged from focusing under the various Media densities at the utility model, formula (3) is promptly arranged: G=ρ V (3), when Media density (ρ) becomes big, arranging liquid volume (V) diminishes, Media density (ρ) diminishes, arrange liquid volume (V) and become big, variation along with Media density, the circular magnetic inductive block consistent with the liquid level level also changes at the axial location of cylinder (2) inwall thereupon, therefore, the utility model only need change the axial location of magnetic inductive block at the buoy cylindrical shell, can satisfy general requirement, and this brings great convenience for manufacturing and check.

2, be provided with snorkel and protective cover pore in the utility model, therefore, buoy is under condition of work, and the buoy external and internal pressure equates, the size that is not stressed restriction; When the inoperative situation; the buoy external pressure descends; and the pressure of its internal pressure when remaining on working condition, when having pressure reduction, according to pascal's principle: P=h ρ; the required pressure reduction of P-discharge opeing in the formula; h-discharge opeing height, ρ-fluid density, the buoy interior media will be discharged automatically from buoy is inner; so the utility model reduces and maloperation makes liquid enter buoy when inner in occurrence temperature, has the automatic drain function.

3, the utility model applying pressure equilibrium principle is provided with pore on protective cover, external and internal pressure is equated, thereby reduced the buoy wall thickness, has alleviated own wt, is applicable in the low-density medium and uses.

4, shell of the present utility model is used stainless aluminium or teflon is made, and is applicable to various strong corrosive medias such as various strong acid, highly basic and strong oxidizer.

5, the utility model shell wall is thin, and in light weight, simple and reasonable, technology is simple, greatly reduces cost.

The explanation of accompanying drawing drawing:

Fig. 1 is a structural representation of the present utility model.

Following the utility model will describe in detail embodiment (in conjunction with the accompanying drawings).

The utility model shown in Figure 1 includes shell 3 and protective cover 14; the following cylinder 1 of shell 3 at the bottom of by the ladder female cap 11 that has mesopore 16, cylinder 2 and circular arc welds successively to be made; it is made by rustproof aluminum alloy or teflon, and the ladder female cap 11 usefulness securing members 12 that have mesopore 16 are connected with the circular arc protective cover 14 that has pore 15.

In cylindrical shell 2, be provided with the magnetic source 18 that peripheral magnetic field intensity is not less than 0.1T, the magnetic support 8 that this magnetic source 18 is connected with magnetic inductive block 7 by with holes 17 circular magnetic inductive block 7, with securing member 6 and the magnet steel that is with upper and lower magnetosheath (10 and 4) (9 and 5) of magnetic inductive block 7 upper and lower faces are formed, and last magnetosheath 10 is connected with magnetic support 8 screw threads 19 with following magnetosheath 4.

Snorkel 13 passes ladder female cap 11 and magnetic inductive block hole 17, and its lower end mouth of pipe touches cylinder 1 to the circular arc, and its upper end mouth of pipe is away from the peak of ladder female cap 11, snorkel 13 and 16 welding of ladder female cap hole.During manufacturing, push magnetic inductive blocks 7 peripheral positioning and fixing on the suitable axial location of cylinder inner wall with roller roll extrusion housing cylinder 2.

When the utility model is implemented on liquid level gauge, be that 16Mpa, working temperature are 200 ℃ with the working pressure, Media density is 0.5g/cm ³Be example, open liquid level gauge gas phase valve earlier, allow pressure enter inside and outside the buoy, external and internal pressure equates, slowly open liquid level gauge liquid phase valve then, when liquid level rose to magnetic inductive block 7 places, the utility model rose with liquid level, the magnetic signal of magnetic inductive block 7 converts electricity, light or mechanical motion signal to, realizes level gauging and control.

Claims

1, a kind of general magnetic buoy includes shell [3] and protective cover [14], it is characterized in that:

A) the following cylinder [1] of shell [3] at the bottom of by the ladder female cap [11] that has mesopore [16], cylinder [2] and circular arc welds successively and makes,

B) in cylindrical shell [2], be provided with magnetic source [18], the magnetic support [8] that described magnetic source [18] connects with magnetic inductive block [7] by the circular magnetic inductive block [7] that has hole [17], with securing member [6] and the magnet steel that is with upper and lower magnetosheath [10 and 4] [9 and 5] of magnetic inductive block [7] upper and lower faces are formed, last magnetosheath [10] is connected with magnetic support [8] screw thread [19] with following magnetosheath [4], according to different medium density, magnetic inductive block [7] periphery extruding positioning and fixing is on the different axial locations of cylindrical shell [2] inwall

C) the ladder female cap [11] that has a mesopore [16] connects a circular arc protective cover [14] that has a pore [15] with securing member [12],

D) snorkel [13] passes mesopore [16] and magnetic inductive block hole [17] of ladder female cap [11], and its lower end mouth of pipe touches cylinder [1] to the circular arc, and its upper end mouth of pipe is away from the peak of ladder female cap [11], snorkel [13] and ladder female cap hole [16] welding.

2, general magnetic buoy according to claim 1 is characterized in that shell [3] makes with rustproof aluminum alloy or teflon.

3, general magnetic buoy according to claim 1 is characterized in that the peripheral magnetic field intensity of magnetic inductive block [7] is greater than 0.1T.