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Microleak automatic protection apparatus based on microflow detection and method thereof

An automatic protection and micro-flow technology, which is applied in the direction of measuring devices, fluid velocity measurement, fluid tightness testing, etc., can solve the problems of short effective service life, high equipment cost, low safety, etc., and achieve long effective service life, High working stability and the effect of increasing fluid velocity

Active Publication Date: 2007-03-28
ACEINNA TRANSDUCER SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention mainly solves the problems existing in the prior art that it is easily affected by various factors. It can only alarm when the gas leaks and reaches a certain concentration. occurrence, low safety and other technical problems; provides a micro-flow detection system with reasonable design, simple structure, high detection accuracy, no interference from external factors, real-time monitoring of pipeline conditions, and automatic cut-off in case of danger. Micro-leakage automatic protection device and method thereof
[0008] Another purpose of the present invention is to solve the technical problems existing in the prior art that the equipment cost is high, the effective service life is short, and it is easy to cause failure in fact and the user is negligent in management and cannot detect it, but there are greater safety hazards. Provides a micro-leakage automatic protection device based on micro-flow detection and its method with low cost, long effective service life, high working stability, and users can use it with confidence without worrying about failure
[0009] Another purpose of the present invention is to solve the technical problems in the prior art that the monitoring sensitivity is not high, the slight leakage cannot be detected in time, and the impurities in the pipeline are easy to affect the monitoring; a branch circuit structure is provided. In the state of the same flow rate, the fluid speed can be effectively increased, the sensor has high sensitivity, and the impurities in the pipeline will not block the branch, so as to ensure safe and smooth micro-leakage automatic protection device and method based on micro-flow detection

Method used

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  • Microleak automatic protection apparatus based on microflow detection and method thereof
  • Microleak automatic protection apparatus based on microflow detection and method thereof
  • Microleak automatic protection apparatus based on microflow detection and method thereof

Examples

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Embodiment 1

[0036] As shown in Figure 1 and Figure 2, the micro-leakage automatic protection device based on micro-flow detection is set on the delivery pipeline. It consists of a micro flow sensor 5, a control circuit 3, a detection channel 4, a detection control valve 2, a main control valve 6 and other components.

[0037] As shown in FIG. 3 , the detection control valve 2 is installed on the main pipeline 1 , and the control circuit 3 is connected with the detection control valve 2 . The main pipeline 1 is connected with a detection channel 4 whose diameter is much smaller than that of the main pipeline 1 . The two ends of the detection channel 4 are respectively located at the two ends of the detection control valve 2 . A micro-flow sensor 5 is arranged in the detection channel 4 , and the micro-flow sensor 5 is connected with the control circuit 3 . The detection channel 4 is set in parallel with the main pipeline 1 as an independent bypass. Wherein, the cross-sectional area of ​​...

Embodiment 2

[0044] As shown in Figure 5, in this embodiment, the detection channel 4 and the main pipeline 1 are arranged on the same pipe, the detection channel 4 is located on the inner wall of the main pipeline 1, and the two ends of the detection channel 4 are respectively connected to the main pipeline 1 . In this scheme, the detection channel and the main pipeline are arranged on the same pipe, and the two are integrated. It can be formed by integral casting with one mold. The rest are the same as in Example 1, and will not be described in detail herein.

Embodiment 3

[0046] As shown in Fig. 6, in this embodiment, the detection channel 4 is located on the outer wall of the main pipeline 1, that is, a channel is opened outside the pipeline, and the rest are the same as in the embodiment 2, and will not be repeated here.

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Abstract

This invention relates to a micro-leakage automatic protection device based on micro-flow test and a method, in which, the device is set on a duct including a test control valve on a main pipeline and a control circuit connected with the test control valve characterizing that a test channel is connected on the main pipeline with the diameter far smaller than that of the main one, both ends of the test channel are at both ends of the control valve, a micro-flow sensor is set in the channel connected with the control circuit.

Description

technical field [0001] The invention relates to the field of safety protection, in particular to an automatic protection device for micro-leakage based on micro-flow detection and a method thereof. Background technique [0002] Combustible gases such as liquefied petroleum gas, coal gas, and natural gas have increasingly become the most important fuels for households. However, due to pipeline aging, quality defects and other reasons, flammable gases often leak. Because the leakage of gas is not easy to be found, it often causes accidents such as poisoning, fire, explosion, personal injury and death. [0003] In order to prevent the occurrence of such accidents, people have carried out long-term exploration and proposed various implementation schemes. However, when common gas alarms leak, they can only report to the police when the gas leaks to a certain concentration. Obviously, the detection of gas concentration is related to many factors, such as the degree of gas conve...

Claims

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Application Information

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IPC IPC(8): F24C3/12G01P5/00G01M3/00
Inventor 毛巨林赵文宏金耀青
Owner ACEINNA TRANSDUCER SYST CO LTD