CN111664908A - Simple flow monitoring device - Google Patents

Abstract

The invention discloses a simple flow monitoring device, which comprises a monitoring pipe connected to a pipeline to be detected, wherein the pipe wall of the monitoring pipe is provided with a measurement outlet and a measurement inlet, a measurement pipe is connected between the measurement outlet and the measurement inlet, and the measurement pipe is provided with an electromagnetic flow monitoring device; a reducer which can move along the inner wall of the monitoring pipe is arranged in the monitoring pipe, the reducer is positioned between the measuring outlet and the measuring inlet, and the inner diameter of the reducer is gradually reduced along the material flowing direction; the measuring outlet is provided with a filter screen, the monitoring pipe is internally provided with a filter screen cleaning device connected to the reducer cylinder, and the measuring pipe is provided with a reverse flushing pipe. The measuring pipe is provided with a reverse flushing pipe, and when impurities on the filter screen accumulate more, the filter screen can be dredged.

Description

Simple flow monitoring device

Technical Field

The invention relates to the technical field of flow monitoring, in particular to a simple flow monitoring device.

Background

The flowmeter is related to in the industrial field, under the general condition, the technical personnel in the field are with flowmeter direct mount on waiting to examine the pipeline, survey the gaseous flow or the flow of liquid on waiting to examine the pipeline, however, when the flowmeter broke down, need maintain or change the flowmeter, the maintenance or change flowmeter probably causes the influence to the normal work of the pipeline that awaits measuring this moment, so the change of conveniently changing flowmeter or making things convenient for the change of flowmeter, the maintenance, and the change maintenance of flowmeter can not cause the simple and easy flow monitoring device of influence to the pipeline that awaits measuring to have an important meaning.

Disclosure of Invention

The invention aims to provide a simple flow monitoring device which can reduce the blockage problem of a measuring pipe.

In order to solve the technical problems, the invention adopts the following technical scheme:

a simple flow monitoring device comprises a monitoring pipe connected to a pipeline to be detected, wherein a measuring outlet and a measuring inlet are formed in the pipe wall of the monitoring pipe, a measuring pipe is connected between the measuring outlet and the measuring inlet, and an electromagnetic flow monitoring device is arranged on the measuring pipe;

a reducer which can move along the inner wall of the monitoring pipe is arranged in the monitoring pipe, the reducer is positioned between the measuring outlet and the measuring inlet, and the inner diameter of the reducer is gradually reduced along the material flowing direction;

the measuring outlet is provided with a filter screen, the monitoring pipe is internally provided with a filter screen cleaning device connected to the reducer cylinder, and the measuring pipe is provided with a reverse flushing pipe.

Preferably, the maximum inner diameter of the reducer cylinder is the same as the inner diameter of the monitoring pipe.

Preferably, a fixed block is arranged in the monitoring pipe and connected with the reducer cylinder through a spring.

Preferably, a sliding groove is axially arranged on the inner wall of the monitoring pipe along the monitoring pipe, a sliding block is arranged in the sliding groove, and a cleaning brush is arranged between the sliding block and the reducing cylinder.

Preferably, a connecting rod is arranged between the sliding block and the reducer cylinder, more than two cleaning brushes are sequentially arranged on the connecting rod along the axial direction of the monitoring pipe, and a gap is formed between every two adjacent cleaning brushes.

Preferably, the number of the connecting rods is more than two, and the cleaning brushes are arranged on one side, close to the filter screen, of the connecting rods.

Compared with the prior art, the invention has the beneficial effects of at least one of the following:

when the electromagnetic flow detection device in this embodiment breaks down, can close the valve on the survey buret, pull down electromagnetic flow detection device and overhaul or change, can not influence the work of monitoring pipe.

When containing impurity in the liquid in the pipeline, for example use in the sewage treatment field, through long-time work back impurity probably get into survey buret, because the pipe diameter of surveying buret under the prevailing circumstances can be far less than the pipe diameter of monitoring pipe, so survey buret and block up more easily, for reducing the impurity that gets into in surveying the buret, set up the filter screen for the impurity of great granule is held back intraductal at the monitoring.

When the impurity accumulation on the filter screen is more, the flow in the measuring pipe will be reduced, and a back flushing pipe is arranged on the measuring pipe for dredging the filter screen.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the filter screen cleaning device of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment provides a simple flow monitoring device, as shown in fig. 1, which includes a monitoring pipe 1 connected to a pipeline to be measured, a measurement outlet and a measurement inlet are arranged on a pipe wall of the monitoring pipe 1, ameasurement pipe 2 is connected between the measurement outlet and the measurement inlet, and an electromagnetic flow monitoring device 3 is arranged on themeasurement pipe 2;

areducer 4 capable of moving along the inner wall of the monitoring pipe 1 is arranged in the monitoring pipe 1, thereducer 4 is positioned between the measurement outlet and the measurement inlet, and the inner diameter of thereducer 4 is gradually reduced along the material flowing direction;

the measuring outlet is provided with a filter screen, the monitoring pipe is internally provided with a filter screen cleaning device connected to the reducer cylinder, and the measuring pipe is provided with a reverse flushing pipe 5.

The simple flow monitoring device in the embodiment comprises a monitoring pipe 1 installed on a pipeline to be detected, and any connection mode existing in the prior art such as threaded connection and flange connection can be adopted between the monitoring pipe 1 and the pipeline to be detected, so long as the monitoring pipe 1 can be communicated with the pipeline to be detected. Areducer 4 is arranged in the monitoring pipe 1, and the inner diameter of thereducer 4 is gradually reduced, so that the pressure at the measuring outlet is greater than the pressure at the measuring inlet, and part of materials leave the monitoring pipe 1 from the measuring outlet and enter themeasuring pipe 2.

Survey and be provided with electromagnetic flow detection device onburet 2, can survey the flow of surveying the interior material ofburet 2, because survey and to present certain functional relation between the flow inburet 2 and the monitoring pipe 1, can calculate the flow through monitoring pipe 1 through the reading on the electromagnetic flow detection device, can obtain the flow through the pipeline that awaits measuring promptly.

The inner diameter of thereducer 4 in this embodiment gradually decreases in the material flow direction, and is more favorable for maintaining the stable flow of the material in the monitoring pipe 1, compared with the sudden decrease.

When the electromagnetic flow detection device in this embodiment breaks down, the valve on themeasuring pipe 2 can be closed, the electromagnetic flow detection device is detached for maintenance or replacement, and the work of the monitoring pipe 1 cannot be influenced. Survey the exit and be provided with the filter screen, when containing impurity in the liquid in the pipeline, for example use in the sewage treatment field, through long-time work back impurity probably get intosurvey buret 2, because survey buret 2's pipe diameter under the prevailing circumstances can be far less than the pipe diameter of monitoring pipe 1, sosurvey buret 2 and block up more easily, for the impurity that reduces to get into in surveyingburet 2, set up the filter screen for the impurity of great granule is held back in monitoring pipe 1.

When the filter screen has a lot of impurities accumulated, the flow in themeasuring pipe 2 is reduced, and a back washing pipe 5 is arranged on themeasuring pipe 2 for dredging the filter screen. In order to facilitate the replacement of the rotor flow monitoring device, themeasuring pipe 2 is provided with valves at two ends of the rotor flow monitoring device, the back flushing pipe 5 is arranged on themeasuring pipe 2 between the valve at the liquid inlet end of the rotary flow detection device and the filter screen, when the filter screen needs to be dredged, the liquid in the back flushing pipe 5 is only needed to be pressed into themeasuring pipe 2, and then the liquid enters the monitoring pipe 1 through the filter screen, so that the dredging is convenient.

In order to prolong the service life of the filter screen and reduce the blockage of the filter screen, a filter screen cleaning device is also arranged, and the filter screen can be cleaned on the premise that the flow in the monitoring pipe is not influenced.

Further, the maximum inner diameter of thereducer cylinder 4 in the present embodiment is the same as the inner diameter of the monitoring pipe 1.

The direct inner wall laminating with monitoring pipe 1 of feed liquor end of a reducing section ofthick bamboo 4 can avoid the material to flow from the passageway between a reducing section ofthick bamboo 4 and monitoring pipe 1 thereby avoid the granule impurity card in the liquid in the narrow and small space between a reducing section ofthick bamboo 4 and monitoring pipe 1, lead to the narrow and small passageway between a reducing section ofthick bamboo 4 and the monitoring pipe 1 to take place to block up, influence monitoring pipe 1's actual cross-sectional area, reduce the stability of flow detection device measurement.

Further, a fixed block 6 is arranged in the monitoring pipe in the embodiment, and the fixed block 6 is connected with the reducer cylinder through a spring 7, as shown in fig. 2.

When the flow in the monitoring pipe is increased, the thrust applied to the reducer cylinder is also increased, so that the reducer cylinder moves towards the front of the flowing liquid, and the filter screen cleaning device is driven to move to clean the filter screen; flow in the monitoring pipe diminishes, and the thrust that the reducing section of thick bamboo received also can diminish for the rear that the reducing section of thick bamboo flowed to liquid removes, thereby drives filter screen cleaning device and removes, cleans the filter screen.

When the flow in the monitoring pipe tends to be stable, liquid can be supplemented into the monitoring pipe through the back flushing pipe 5, and the flow is manually adjusted, so that the filter screen cleaning device reciprocates to clean the filter screen.

Further, a sliding groove is axially arranged on the inner wall of the monitoring pipe along the monitoring pipe in the embodiment, a slidingblock 8 is arranged in the sliding groove, and acleaning brush 10 is arranged between the slidingblock 8 and the reducer cylinder.

The setting of spout can be so that the position looks adaptation ofcleaning brush 10 and filter screen, avoids long-term the use back, and cleaningbrush 10 is owing to receive the filter screen to the power of monitoring pipe axis direction and keep away from the filter screen gradually, influences clean effect.

Furthermore, a connecting rod 9 is arranged between the slidingblock 8 and the reducer cylinder in the embodiment, more than twocleaning brushes 10 are sequentially arranged on the connecting rod 9 along the axial direction of the monitoring pipe, and a gap is arranged between theadjacent cleaning brushes 10.

Thecleaning brushes 10 are arranged more than two, and gaps are arranged between theadjacent cleaning brushes 10, so that thecleaning brushes 10 can not completely cover the measuring outlet, and when the occupied area of thecleaning brushes 10 is smaller than that of the measuring outlet, the flow in the measuring pipe can not be greatly influenced.

Furthermore, the number of the connecting rods 9 in this embodiment is more than two, and thecleaning brush 10 is disposed on one side of the connecting rods 9 close to the filter screen. The two ends of thecleaning brush 10 are respectively arranged on the two connecting rods 9, so that the cleaning brush is more stable.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a simple and easy flow monitoring device which characterized in that: the device comprises a monitoring pipe (1) connected to a pipeline to be detected, wherein a measuring outlet and a measuring inlet are arranged on the pipe wall of the monitoring pipe (1), a measuring pipe (2) is connected between the measuring outlet and the measuring inlet, and an electromagnetic flow monitoring device (3) is arranged on the measuring pipe (2);

a reducer (4) capable of moving along the inner wall of the monitoring pipe (1) is arranged in the monitoring pipe (1), the reducer (4) is positioned between the measuring outlet and the measuring inlet, and the inner diameter of the reducer (4) is gradually reduced along the material flowing direction;

the measuring outlet is provided with a filter screen, a filter screen cleaning device connected to the reducer cylinder (4) is arranged in the monitoring pipe (1), and a reverse flushing pipe (5) is arranged on the measuring pipe (2).

2. The simplified flow monitoring device according to claim 1, characterized in that the maximum inner diameter of the reducer cylinder (4) is the same as the inner diameter of the monitoring pipe (1).

3. The simple flow monitoring device according to claim 1, characterized in that a fixed block (6) is arranged in the monitoring pipe, and the fixed block (6) is connected with the reducer cylinder (4) through a spring (7).

4. The simple flow monitoring device according to claim 1, wherein a sliding groove is axially arranged on the inner wall of the monitoring pipe along the monitoring pipe (1), a sliding block (8) is arranged in the sliding groove, and a cleaning brush (10) is arranged between the sliding block (8) and the reducer cylinder (4).

5. The simple flow monitoring device according to claim 4, wherein a connecting rod (9) is arranged between the sliding block (8) and the reducer cylinder, more than two cleaning brushes (10) are sequentially arranged on the connecting rod (9) along the axial direction of the monitoring pipe, and a gap is arranged between the adjacent cleaning brushes (10).

6. The simple flow monitoring device according to claim 5, characterized in that the number of the connecting rods (9) is more than two, and the cleaning brush (10) is arranged on one side of the connecting rods (9) close to the filter screen.

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