CN2345962Y - Liquid level interface measuring instrument with safety device for preventing strong leakage - Google Patents

Abstract

The utility model relates to a liquid level and interface measuring instrument with a strong leakage preventing device, composed of main parts, such as a transparent pressure resisting pipe, a color plate, a temperature adjusting pipe, an adjustable float, a strong leakage preventing device, etc. Liquid levels and interfaces between liquid and gas and between the liquid and the liquid can be simultaneously indicated through observing the image position difference and the shape difference of the color plate and the position of the float, and the utility model can be separately used as a liquid level meter or an interface meter. When the pressure resisting pipe ruptures, the strong leakage preventing safety device can be used to carry out automatic plugging so as to prevent accidents from spreading. The utility model has the advantages of simple structure, clear and reliable observing indication, high using safety and convenient maintenance, and the utility model makes up for the defects of an existing liquid level meter from multi-aspect.

Description

The liquid level interface level measurement instrument of the anti-strong leakage safety feature of band

The utility model belongs to the measurement liquid level of the anti-strong leakage safety feature of band and the measurement instrument at interface.It can utilize multiple color to show liquid-gas-liquid face and liquid-liquid interface, and can implement shutoff automatically under the accident condition of pipe break, and the accident of preventing spreads.It can be widely used in petrochemical complex, boiler, and light industry, medicine, all need observe the field of measuring liquid level and interface food etc.

The double-colored liquid level meter of using of optics all is to utilize a transparent quartz ampoule or glass tube to make main body at present.Because some has problem because of the quality of pipe own, some is because of being subjected to extraneous factor as shaking, and the accident of pipe break can take place under pressure in influences such as bump.In case this accident takes place, because the latus rectum of pipe is bigger, has a large amount of materials and run damage, even related accidents such as breaking out of fire blast and environmental pollution.

General in the past way is at table body two ends the valve that has steel ball to be installed., in case when breaking, a large amount of liquid flows or air-flows can be shifted steel ball onto assigned address the path of valve is blocked when pipe, thereby avoided the development of leakage accident.But be to use this valve that two shortcomings are arranged, one is because steel ball and valve all are steel, if be failure to actuate for a long time, steel ball meeting rust joint is at valve internal, and when accident took place, liquid stream or air-flow did not promote the steel ball rolling, do not play plugging action.The secondth, in case steel ball with the path shutoff after, just can not get back to original position automatically, wanting to recover path must pull down valve, very bothersome.

The purpose of this utility model is the shortcoming that overcomes present tubular type liquid (boundary) face meter, that designs a kind ofly can indicate liquid-gas interface, can indicate liquid-liquid interface again, in case but also can when pipe breaks, carry out the liquid level interface level measurement instrument of the anti-strong leakage safety feature of band of shutoff automatically.

The purpose of this utility model is achieved in that in the enclosure, adopts a transparent pipe of circular hole resistance to compression, and on the table body, following connector utilizes packing seal and last, and lower communicating tube is connected.Dead astern at pipe is equipped with colour table, the twice of focal length when the distance at itself and pipe center forms biconvex lens for being full of by pipe behind the medium.At tube interior the adjustable float that can regulate internal capacity is installed.At the pipe rear portion two temperature adjustment pipes that are made of metal are installed, are used for heating or cooling medium.Last, anti-strong leakage safety feature is installed on the following connecting pipe, in safety feature, be equipped with one by nonmetal or non-ferrous metal is made can free movable ball sealer, use in case when pipe break, carry out automatic shutoff.When making the liquid level meter and use, during gassy, can see two colour tables installing at the pipe rear portion when no liquid in the tube interior from the front of pipe, its color position is identical with the installation site.After entering transparency liquid in the pipe, pipe becomes a biconvex lens.According to the image-forming principle of falling of convex lens, seen from the pipe front this moment be two color positions opposite the colour table image.In the boundary of these two kinds of images part is the physical location of liquid level.When doing the level meters use, before use, measure the rate of specific gravity of tested two media earlier, regulate the adjusting screw on the float then, float internal cavity volume is transferred to proper range, the proportion that makes float this moment is between the proportion of tested two media.The float that mixes up is packed in the pipe, and float will rest on two kinds of interface locations between the liquid.When in a single day pipe breaks, band press liquid in the container or gas can be to install to the rent diffluence by this at a high speed.According to the Bernoulli equation in the fluid mechanics as can be known, the variation of rate of flow of fluid can bring the variation of pressure.Bead in the anti-strong leakage device will reduce to be subjected to below pressure effect rise that passage is blocked because of the pressure of its top.When the pipe that breaks processed good after, be screwed into the outside jackscrew of this device, pushing bead exposes the slit, and the pipe internal pressure is recovered normally.This moment, bead can fall automatically because of action of gravity, and table body inner gateway recovers automatically, at last the jackscrew of this device outside is twisted back original position, in order to using next time.

Owing to adopt such scheme, can clear and accurate observe the physical location that measures container inner medium liquid level or interface, can ensure the safety under the accident condition simultaneously.

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is that master of the present utility model looks cut-open view.

Fig. 2 is a vertical view cutaway drawing of the present utility model.

1. connectors, 2. shells, 3. fillers, 4. gland screws, 5. glands, 6. transparent pressure pipe 7. adjustable float 8. anti-strong leakage safety feature 9. ball sealers 10. jackscrews 11. colour tables 12. temperature adjustment pipes among the figure

In Fig. 1, in the shell (2), transparent pressure pipe (6) is connected with the connector (1) at two ends by filler (3), and by gland (5) and gland screw (4) it is compressed.Be equipped with adjustable float (7) in the transparent pressure pipe (6), the size of float internal volume regulates in advance according to survey medium proportion.Anti-strong leakage safety feature (8) is installed on the gateway pipeline of two ends connector (1), at anti-strong leakage safety feature (8) but a nonmetal ball sealer of free rolling (9) is equipped with in inside, ball sealer (9)) diameter be as the criterion can satisfy the shutoff purposes.

In Fig. 2, at transparent pressure pipe (6) rear portion center position the colour table (11) of two different colours is installed, itself and transparent pressure pipe (6)) twice of the distance of tube hub focal length during for formation biconvex lens when transparent pressure pipe is full of medium after.Two temperature adjustment pipes (12) are installed in the space between transparent pressure pipe (6) and colour table (11), and its position is viewed as standard not hinder.

Claims (7)

1. be with the liquid level interface level measurement instrument of preventing the strong leakage safety feature for one kind, by connector (1), shell (2), filler (3), gland bolt (4), gland (5), pressure pipe (6), adjustable float (7), safety feature (8), bead (9), adjusting screw (10), red green plate (11), temperature adjustment pipe (12) are formed, and it is characterized in that installing side by side at the pressure pipe rear each one of red green plate, be provided with one of adjustable float in the pressure pipe, two of temperature adjustment pipes are installed in the housing, each cover of safety feature is installed on the connecting pipe of table body two ends, connecting pipe is connected with the institute xylometer by flange.

2. as the liquid level interface level measurement instrument of the anti-strong leakage safety feature of the described band of claim 1., it is characterized in that pressure pipe is to be made by transparency material, tube wall, pore is round.

3. as the liquid level interface level measurement instrument of the anti-strong leakage safety feature of the described band of claim 1., it is characterized in that the red green plate must be installed in the dead astern of pressure pipe side by side.

4. as the liquid level interface level measurement instrument of the anti-strong leakage safety feature of the described band of claim 1., it is characterized in that adjustable float can move freely in withstand voltage tube chamber.

5. as the liquid level interface level measurement instrument of the anti-strong leakage safety feature of the described band of claim 1., it is characterized in that the temperature adjustment pipe that is installed in the table body is to be made by metal material.

6. as the liquid level interface level measurement instrument of the anti-strong leakage safety feature of the described band of claim 1., it is characterized in that showing the body two ends each cover of safety feature is installed.

7. as the liquid level interface level measurement instrument of the anti-strong leakage safety feature of claim 1. or 6. described bands, it is characterized in that being equipped with in the safety feature one can free movable bead, and bead can be made by nonmetallic materials or by non-ferrous metal.Shutoff face one end is by the non-ferrous metal manufacturing in the device.

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