CN202648738U

CN202648738U - Air blowing type liquid level meter

Info

Publication number: CN202648738U
Application number: CN 201220211773
Authority: CN
Inventors: 邵永超; 陈建军; 鲁会清
Original assignee: ZHONGXIANG KAILONG CHUXING CHEMICAL CO Ltd
Current assignee: ZHONGXIANG KAILONG CHUXING CHEMICAL CO Ltd
Priority date: 2012-05-13
Filing date: 2012-05-13
Publication date: 2013-01-02
Anticipated expiration: 2022-05-13

Abstract

An air blowing type liquid level meter comprises a pipe A (1), a pipe B (2), a U-shaped pipe (3) and a blowing device (4). One end of the pipe A (1) is communicated with the pipe B (2), one end of the U-shaped pipe (3) is communicated with one end of the pipe B (2), and the blowing device (4) is mounted at the other end of the pipe A (1). The air blowing type liquid level meter has the advantages that the modified novel air blowing type liquid level meter is simple, convenient and safe to operate in the production process, and measuring failure caused by crystallization and blockage of liquid in a pipeline can be rapidly eliminated.

Description

A kind of blowing type liquid level meter

Technical field

The utility model relates to a kind of blowing type liquid level meter.

Background technology

At present, existing blowing type liquid level meter has passed into the gas of constant rate from an end (A end) when work, a segment pipe that is inserted in the liquid can not stop up because of the crystallization of survey medium, thickness, cause the measurement fault, therefore the blowing type liquid level meter is commonly used to measure the medium than crystallization thickness or easy, and in the ammonium nitrate solution storage tank all be concentration at the ammonium nitrate solution more than 92%, very easily crystallization is also used blowing type liquid level instrumentation amount storage tank liquid level at this.

But, during overhaul of the equipments is carried out in the production line parking, owing to there not being pressurized air, the A end does not just have constant gas flow mistake yet, in this case, being inserted into ducted liquid level in the liquid will crystallization and stop up, cause the measurement fault, and the method for processing takes exactly that the A end is compressed-air actuated to enter pipeline apart, passes into from here steam or water equal solvent, until the dredging of this segment pipe is for extremely, deal with suitable trouble, and owing to inserting that the pipe diameter of liquid is very little to only have 6mm, in the situation that high temperature is when passing into water, current are vaporized very soon and are sprayed, and are easy to the instrumentation personnel are damaged.

The utility model content

The purpose of this utility model is exactly for the above-mentioned deficiency of present blowing type liquid level instrumentation amount, and a kind of blowing type liquid level meter is provided.

The utility model is comprised of A pipe, B pipe, U-shaped pipe and blow device, and A manages an end and communicates with the B pipe, and U-shaped Guan Yiduan manages an end with B and communicates, and blow device is installed in the A pipe other end.

The utility model has the advantages that: the Novel gas blowing liquid level gauge of this repacking operates simply in process of production, safety, can get rid of rapidly the measurement fault that causes because of liquid crystalization obstruction in the pipeline.

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

As shown in Figure 1, the utility model is comprised of A pipe 1, B pipe 2, U-shaped pipe 3 and blow device 4, and A manages 1 one ends and communicates with B pipe 2, and U-shaped pipe 3 one ends are managed 2 one ends with B and communicated, and blow device 4 is installed in A and manages 1 other end.

During use, a threeway is installed at the A place first, respectively fills a valve (such as Fig. 1) at the threeway two ends, connect respectively pressurized air and solvent.During normal operation, only open compressed-air actuated valve, when Crystallization Plugging appearred in the pipeline that inserts liquid, closes compression air valve, unlatching solvent valve passed into the water equal solvent until pipeline is dredged.

Principle of work: be illustrated in fig. 1 shown below, when passing into constant gas from the A end, gas will be discharged to insert the medium in the liquid interior conduit and form steady h and be decided bubble, and the pressure in managing between A, B this moment equates with B port fluid pressure.

If the pressure at B place is P1, atmospheric pressure is P0, P1-P0=Δ P then,

While P1=γ h+P0,

P1-P0=γ h=Δ P then,

Therefore, under the condition of known media density, utilize differential pressure transmitter or pressure survey to go out Δ P, can measure liquid level h.

Claims

1. blowing type liquid level meter, it is characterized in that it is comprised of A pipe (1), B pipe (2), U-shaped pipe (3) and blow device (4), A pipe (1) one end communicates with B pipe (2), and U-shaped pipe (3) one ends communicate with B pipe (2) one ends, and blow device (4) is installed in A pipe (1) other end.