CN102182929B - Device and method for detecting pipeline blockage - Google Patents

Device and method for detecting pipeline blockage Download PDF

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Publication number
CN102182929B
CN102182929B CN 201010597387 CN201010597387A CN102182929B CN 102182929 B CN102182929 B CN 102182929B CN 201010597387 CN201010597387 CN 201010597387 CN 201010597387 A CN201010597387 A CN 201010597387A CN 102182929 B CN102182929 B CN 102182929B
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CN
China
Prior art keywords
described
pipeline
module
pump
handover module
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CN 201010597387
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Chinese (zh)
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CN102182929A (en
Inventor
佘检求
常春普
陈人
王健
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聚光科技(杭州)股份有限公司
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Priority to CN 201010597387 priority Critical patent/CN102182929B/en
Publication of CN102182929A publication Critical patent/CN102182929A/en
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Abstract

The invention provides a device for detecting pipeline blockage, which comprises a pump and a pipeline and also comprises a measuring module, an analyzing module and a judging module, wherein the measuring module is used for measuring working parameters of the pump and transmitting the working parameters to the analyzing module; the analyzing module is used for obtaining the flow quantity of fluid in the pipeline according to the received working parameters and transmitting the flow quantity to the judging module; and the judging module is used for judging whether the pipeline is blocked according to the received flow quantity of the fluid in the pipeline. The device has the advantages of high reliability, low cost, simple structure, etc.

Description

A kind of detection device of line clogging and method

Technical field

The present invention relates to the detection of line clogging, particularly go to detect the apparatus and method of line clogging according to the working state of pump, and fluid feed system and the method for using said apparatus and method.

Background technique

Jam detection is the important step that the portable gas alarm detects gas circuit when adopting pump suction mode to carry out gas collecting.Tradition gas circuit clogging detecting system comprises sampling pump, air inlet pipeline, pressure sensing cell.Sampling pump is indicated gas pressure in the current pipeline with sample gas suction air inlet pipeline by pressure sensing cell.The sampling pump indicatrix comprises flow-pressure diagram, finds out its corresponding flow, i.e. current piping flow according to current pressure.Sampling pump power is certain, judges according to piping flow whether management stops up.When pipeline blockage occurring, alarm is reported to the police and is artificially processed blocking pipeline.

Such detection technique has the following disadvantages:

1, increase pressure transducer in the pipeline, expensive;

2, working pressure sensor, the whole system jam detection is determined by sampling pump self and pressure transducer two aspect factors;

Mainly by artificial handling failure, degree of intelligence is low during pipeline blockage.

Summary of the invention

In order to solve above shortcomings in the prior art, the invention provides the detection device of the line clogging that a kind of reliability is high, simple in structure, cost is low and use the fluid feed system of this detection device, the detecting method of the high line clogging of a kind of reliability also is provided and has used the fluid supply processes of the method.

The objective of the invention is to be achieved through the following technical solutions:

A kind of detection device of line clogging comprises pump, pipeline, and described detection device further comprises:

Measurement module, described measurement module are used for recording the running parameter of described pump, and are sent to analysis module;

Analysis module, described analysis module is used for obtaining according to the described running parameter that receives the flow of the fluid in the described pipeline, and is sent to judge module;

Judge module, described judge module are used for judging according to the flow of the fluid in the pipeline that receives whether described pipeline stops up.

According to above-mentioned detection device, described running parameter is operating current.

Purpose of the present invention also is achieved through the following technical solutions:

A kind of fluid feed system, described supply system comprises above-mentioned detection device, also further comprises:

The first stream handover module, described the first stream handover module are arranged on the pipeline in the described detection device, optionally make pump be communicated with described pipeline or the external world under the control module effect;

The second stream handover module, described the second stream handover module is arranged on the downstream of the pump in the described detection device, optionally makes described pump be communicated with the pipeline of extraneous or described the first stream handover module upstream under described control module effect;

Control module, described control module are used for removing to control described the first stream handover module and the second stream handover module according to the judged result that described judge module sends.

According to above-mentioned supply system, the running parameter of pump is operating current in the described detection device.

According to above-mentioned supply system, described the first stream handover module has the first port of being communicated with described pipeline, be communicated with the second extraneous port and be communicated with the 3rd port of described pump, and described the 3rd port optionally is communicated with the first port or the second port.

According to above-mentioned supply system, described the second stream handover module has the five-port that is communicated with the 4th extraneous port, the described pipeline of connection and the 6th port that is communicated with described pump, and described the 6th port optionally is communicated with the 4th port or five-port.

According to above-mentioned supply system, described the first stream handover module and/or the second stream handover module adopt three-way valve.

Purpose of the present invention also is achieved through the following technical solutions:

A kind of detecting method of line clogging, described detecting method may further comprise the steps:

Record the running parameter of pump, the upstream connecting tube of described pump;

Obtain the flow of the fluid in the described pipeline according to described running parameter;

Judge according to the flow of the fluid in the pipeline that receives whether described pipeline stops up.

According to above-mentioned detecting method, according to described running parameter and utilize power and the mapping relations of flow obtain the flow of described pipeline inner fluid.

According to above-mentioned detecting method, judge according to the flow of described pipeline inner fluid and the ability to work of described pump whether described pipeline stops up.

Purpose of the present invention also is achieved through the following technical solutions:

A kind of Supply Method of fluid, described Supply Method is:

Above-mentioned fluid feed system is provided;

Under the effect of pump, fluid passes through to flow to the external world behind described pipeline, the first stream handover module, pump and the second stream handover module, with accommodating fluid;

In above-mentioned work, use above-mentioned detecting method and judge whether described pipeline stops up;

If judged result is for stopping up, control module is controlled described the first stream handover module and the second stream handover module, so that extraneous fluid flows to the pipeline of described the first stream handover module upstream after by described the first stream handover module, pump and the second stream handover module, clear up the inside of described pipeline.

According to above-mentioned detecting method, according to described running parameter and utilize power and the mapping relations of flow obtain the flow of described pipeline inner fluid.

According to above-mentioned detecting method, judge according to the flow of described pipeline inner fluid and the ability to work of described pump whether described pipeline stops up.

Compared with prior art, the beneficial effect that has of the present invention is:

1, system cost is low.Do not re-use expensive pressure transducer, reduced cost.

2, increase system's signal piping and stop up reliability.Original system makes up to judge the pipeline blockage situation by the current state of pressure transducer, sampling pump two-part equipment; Only the performance characteristic with sampling pump self is relevant for pipeline blockage among the present invention.

3, increase the automatic back blow function, instrument is more intelligent.

Description of drawings

With reference to accompanying drawing, disclosure of the present invention will be easier to understand.Those skilled in the art are understood that easily: these accompanying drawings only are used for illustrating technological scheme of the present invention, and are not to be intended to protection scope of the present invention is construed as limiting.Among the figure:

Fig. 1 is the basic block diagram according to the detection device of the embodiment of the invention;

Fig. 2 is the flow chart according to the detecting method of the embodiment of the invention;

Fig. 3 is according to the supply system of the embodiment of the invention basic block diagram when the accommodating fluid;

Fig. 4 is according to the supply system of the embodiment of the invention basic block diagram when the blowback pipeline;

Fig. 5 is the schematic representation that concerns according to the working power of the pump of the embodiment of the invention and pipeline inner fluid flow;

Fig. 6 is the flow chart according to the Supply Method of the embodiment of the invention.

Embodiment

Fig. 1-6 and following declarative description optional mode of execution of the present invention how to implement with instruction those skilled in the art and reproduce the present invention.In order to instruct technical solution of the present invention, simplified or omitted some conventional aspects.Those skilled in the art should understand that the modification that is derived from these mode of executions or replace will be within the scope of the invention.Those skilled in the art should understand that following characteristics can make up to form a plurality of modification of the present invention in every way.Thus, the present invention is not limited to following optional mode of execution, and is only limited by claim and their equivalent.

Embodiment:

Fig. 1 has schematically provided the basic block diagram of detection device of the line clogging of the embodiment of the invention.As shown in Figure 1, described detection device comprises:

The pump 2 of withdrawn fluid (gas or liquid);

The pipeline 1 that is communicated with described pump;

The measurement module (not shown) is used for recording the running parameter of described pump, and is sent to analysis module;

The analysis module (not shown) is used for obtaining according to the described running parameter that receives the flow of the fluid (gas or liquid) in the described pipeline, and is sent to judge module;

The judge module (not shown) is used for judging according to the flow of the fluid (gas or liquid) in the pipeline that receives, the flow that the ability to work of pump reaches whether described pipeline stops up.

Preferably, described running parameter is operating current.

Fig. 2 has schematically provided the flow chart of detecting method of the line clogging of the embodiment of the invention.As shown in Figure 2, described detecting method comprises the steps:

A kind of detecting method of line clogging, described detecting method may further comprise the steps:

Record the running parameter of pump, the upstream connecting tube of described pump;

Obtain the flow of the fluid (gas or liquid) in the described pipeline according to described running parameter;

Judge according to the flow of the fluid in the pipeline that receives (gas or liquid) whether described pipeline stops up.

Alternatively, according to described running parameter and utilize operating current and the mapping relations of flow (such as Fig. 5) obtain as described in the flow of pipeline inner fluid (gas or liquid).

Alternatively, the flow that reaches according to the ability to work of the flow of described pipeline inner fluid (gas or liquid) and described pump judges whether described pipeline stops up.

Fig. 3 has schematically provided the basic block diagram of the fluid feed system of the embodiment of the invention.As shown in Figure 3, described supply system comprises:

Above-mentioned detection device;

The first stream handover module 3 is arranged on the pipeline 1 in the described detection device, optionally makes pump 2 be communicated with described pipeline 1 or the external world under the control module effect;

The second stream handover module 4 is arranged on the downstream of the pump 2 in the described detection device, optionally makes described pump 2 be communicated with the pipeline 1 of extraneous or described the first stream handover module 3 upstreams under described control module effect;

Control module is used for removing to control described the first stream handover module 3 and the second stream handover module 4 according to the judged result that described judge module sends.

Alternatively, described the first stream handover module 3 has the first port 31 of being communicated with described pipeline 1, be communicated with the second extraneous port 32 and be communicated with the 3rd port 33 of described pump 2, and described the 3rd port 33 optionally is communicated with the first port 31 or the second port 32.

Alternatively, described the second stream handover module 4 has the five-port 42 that is communicated with the 4th extraneous port 41, the described pipeline of connection and the 6th port 43 that is communicated with described pump, and described the 6th port 43 optionally is communicated with the 4th port 41 or five-port 42.

Alternatively, described the first stream handover module and/or the second stream handover module adopt three-way valve.

Fig. 6 has schematically provided the flow chart of the fluid supply processes of the embodiment of the invention.As shown in Figure 6, described Supply Method comprises the steps:

Above-mentioned fluid feed system is provided;

Under the effect of pump, fluid (gas or liquid) passes through to flow to the external world behind described pipeline, the first stream handover module, pump and the second stream handover module, with accommodating fluid (gas or liquid);

In above-mentioned work, use above-mentioned detecting method and judge whether described pipeline stops up;

If judged result is for stopping up, control module is controlled described the first stream handover module and the second stream handover module, so that extraneous fluid (gas or liquid) flows to the pipeline of described the first stream handover module upstream after by described the first stream handover module, pump and the second stream handover module, clear up the inside of described pipeline, as shown in Figure 4.

The application examples of fluid feed system according to the present invention in gas detecting and alarming instrument.Concrete mode is: under the effect of pump, gas to be measured flows to gas transducer after by described pipeline, the first stream handover module, pump and the second stream handover module, detects for described gas transducer; In above-mentioned work, the operating current of measurement module testing pump, analysis module utilize the electric current-flow curve of pump to learn the gas flow that described pipeline is interior; Judge module is compared this flow with the nominal operation flow of pump, thereby learns whether described pipeline stops up; If judged result is for stopping up, control module is controlled described the first stream handover module and the second stream handover module, so that extraneous gas flows to described pipeline after by described the first stream handover module, pump and the second stream handover module, clear up the inside of described pipeline, thereby effectively prevented the obstruction of pipeline.

Claims (8)

1. fluid feed system, it is characterized in that: described supply system comprises detection device, described detection device comprises pump, pipeline, also comprises:
Measurement module, described measurement module are used for recording the running parameter of described pump, and are sent to analysis module;
Analysis module, described analysis module is used for obtaining according to the described running parameter that receives the flow of the fluid in the described pipeline, and is sent to judge module;
Judge module, described judge module are used for judging according to the flow of the fluid in the pipeline that receives whether described pipeline stops up
Described supply system also further comprises:
The first stream handover module, described the first stream handover module are arranged on the pipeline in the described detection device, optionally make pump be communicated with described pipeline or the external world under the control module effect;
The second stream handover module, described the second stream handover module is arranged on the downstream of the pump in the described detection device, optionally makes described pump be communicated with the pipeline of extraneous or described the first stream handover module upstream under described control module effect;
Control module, described control module are used for removing to control described the first stream handover module and the second stream handover module according to the judged result that described judge module sends.
2. supply system according to claim 1, it is characterized in that: the running parameter of pump is operating current in the described detection device.
3. supply system according to claim 1, it is characterized in that: described the first stream handover module has the first port of being communicated with described pipeline, be communicated with the second extraneous port and be communicated with the 3rd port of described pump, and described the 3rd port optionally is communicated with the first port or the second port.
4. supply system according to claim 1, it is characterized in that: described the second stream handover module has the five-port that is communicated with the 4th extraneous port, the described pipeline of connection and the 6th port that is communicated with described pump, and described the 6th port optionally is communicated with the 4th port or five-port.
5. supply system according to claim 1 is characterized in that: described the first stream handover module and/or the second stream handover module employing three-way valve.
6. the Supply Method of a fluid is characterized in that, described Supply Method is:
Provide such as the arbitrary described fluid feed system of claim 1 to 5;
Under the effect of pump, fluid passes through to flow to the external world behind described pipeline, the first stream handover module, pump and the second stream handover module, with accommodating fluid;
In above-mentioned work, use detecting method and judge whether described pipeline stops up;
Described detecting method may further comprise the steps:
Record the running parameter of pump, the upstream connecting tube of described pump;
Obtain the flow of the fluid in the described pipeline according to described running parameter;
Judge according to the flow of the fluid in the pipeline that receives whether described pipeline stops up
If judged result is for stopping up, control module is controlled described the first stream handover module and the second stream handover module, so that extraneous fluid flows to the pipeline of described the first stream handover module upstream after by described the first stream handover module, pump and the second stream handover module, clear up the inside of described pipeline.
7. Supply Method according to claim 6 is characterized in that: according to described running parameter and utilize power and the mapping relations of flow obtain the flow of described pipeline inner fluid.
8. Supply Method according to claim 6 is characterized in that: judge according to the flow of described pipeline inner fluid and the ability to work of described pump whether described pipeline stops up.
CN 201010597387 2010-12-10 2010-12-10 Device and method for detecting pipeline blockage CN102182929B (en)

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CN105302169A (en) * 2014-07-29 2016-02-03 盛美半导体设备(上海)有限公司 Flow control method
CN104295907B (en) * 2014-08-12 2017-02-15 上海中联重科桩工机械有限公司 System and method for detecting blockage position of pipeline
CN104214520B (en) * 2014-08-28 2017-12-15 武汉光谷节能技术有限公司 District cooling and heating transmission and distribution network health check system
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CN107225166A (en) * 2017-05-22 2017-10-03 广东美的暖通设备有限公司 Pipeline fitting shaping is with surveying stifled system and its control method
CN109780449B (en) * 2018-12-26 2020-03-17 西安交通大学 Device and method for detecting ice blockage position of natural gas pipeline
CN109882738A (en) * 2019-03-07 2019-06-14 常州富兴机电有限公司 A kind of electromotor cooling system fault detection means and method

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