Online liquid leakage prevention detection device applied to industrial pipeline

Abstract

The utility model relates to the technical field of pipeline detection, in particular to an on-line liquid leakage prevention detection device applied to an industrial pipeline, which comprises a detection pipeline, and a first manual ball valve, a first pneumatic ball valve, a first pressure sensor, a pressure release valve and a second manual ball valve are sequentially arranged at the left end part of the surface of one side of the detection pipeline from left to right. A third manual ball valve, a second pressure sensor, a second pneumatic ball valve and a fourth manual ball valve are sequentially arranged at the right end of the surface of one side of the detection pipeline from left to right, and an online static pulse pressure device is installed on the pipeline to detect whether the pipeline and pipe fittings are well sealed or not through online detection of the sealing performance of the pipeline after the pipeline is put into use; the device has the advantages of continuous detection, full-system detection and low detection cost, can realize flexible pipeline sealing performance detection on the premise of not influencing a pipeline liquid conveying system, is high in detection result accuracy, can fully cover a pipeline system needing to be detected, and can effectively improve the overall working efficiency of pipeline detection.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline detection technical field especially, relate to an application in industrial pipeline online liquid leakage prevention detection device. BACKGROUND

[0002] Through the retrieval existing announcement number CN221881177U's Chinese patent document, disclosed is a fire control pipeline leakproof detection device, including detection support, the inside fixed cover of detection support is equipped with the casing box, the top fixed mounting of detection support has the air inlet tank, the inside of air inlet tank and the inside of casing box all are equipped with the bushing, the one end of two bushings all is fixedly connected with air inlet cushion plate, the inside of casing box is equipped with detection distance adjusting assembly, the side fixed mounting of detection support has the lifting frame, its device has the distance between two fixed supports by adjusting, thereby can carry out leakproof detection processing to the pipeline of different length, and realize fast leakproof detection processing to whole pipeline.

[0003] Current industrial pipeline (including pipe fitting) leakproof detection usually carries out gas tight experiment, watertight experiment or nondestructive testing before pipeline is put into use, but pipeline can not be effectively detected after being put into use whether the pipeline sealing property is good, and liquid leakage caused by pipeline and pipe fitting sealing property failure often occurs, and further causes major loss. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that the prior art has the defect, provides a kind of application in industrial pipeline online liquid leakage prevention detection device, to solve the technical problem that the existing industrial pipeline detection technology cost is high, detection is not comprehensive, detection has hysteresis.

[0005] To solve the above technical problem, the utility model provides the following technical scheme:

[0006] The utility model relates to an online liquid leakage prevention detection device applied to industrial pipeline, which comprises a detection pipeline, wherein a first manual ball valve, a first pneumatic ball valve, a first pressure sensor, a pressure relief valve and a second manual ball valve are sequentially arranged from left to right on the left end of the side surface of the detection pipeline; a third manual ball valve, a second pressure sensor, a second pneumatic ball valve and a fourth manual ball valve are sequentially arranged from left to right on the right end of the side surface of the detection pipeline; a fifth manual ball valve, a third pneumatic ball valve, a booster pump and a sixth manual ball valve are sequentially arranged from left to right on the bottom end of the left end of the detection pipeline; the first pneumatic ball valve, the first pressure sensor, the second pressure sensor, the second pneumatic ball valve, the third pneumatic ball valve and the booster pump are connected to a controller through a control circuit for operation; and a one-way valve is arranged between the second manual ball valve and the sixth manual ball valve.

[0007] Further description of the above technical solution is as follows:

[0008] The first manual ball valve, the first pneumatic ball valve and the second pneumatic ball valve are sequentially connected in series to the start end of the detection pipeline and fixedly connected; and the third manual ball valve, the second pneumatic ball valve and the fourth manual ball valve are sequentially connected in series to the end of the detection pipeline and fixedly connected.

[0009] Further description of the above technical solution is as follows:

[0010] The fifth manual ball valve, the third pneumatic ball valve, the booster pump, the sixth manual ball valve and the one-way valve are sequentially connected in series and arranged in parallel with the first pneumatic ball valve.

[0011] Further description of the above technical solution is as follows:

[0012] The pressure relief valve is arranged in parallel with the first pneumatic ball valve; the first pressure sensor is arranged between the first pneumatic ball valve and the second manual ball valve; and the second pressure sensor is arranged between the third manual ball valve and the second pneumatic ball valve.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, the online static pulse pressure device is installed on the pipeline to detect whether the pipeline and pipe fittings are sealed well, and the pipeline detection system has the advantages of continuous detection, full-system detection and low detection cost. The pipeline detection system can be flexibly detected without affecting the pipeline infusion system, and the detection result is accurate. The pipeline detection system can fully cover the pipeline system to be detected, and the overall working efficiency of the pipeline detection system can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0016] Figure 1 is the overall structure schematic view of the utility model;

[0017] In the drawing: 1, detection pipeline; 2, first manual ball valve; 3, first pneumatic ball valve; 4, first pressure sensor; 5, pressure relief valve; 6, second manual ball valve; 7, third manual ball valve; 8, second pressure sensor; 9, second pneumatic ball valve; 10, fourth manual ball valve; 11, fifth manual ball valve; 12, third pneumatic ball valve; 13, booster pump; 14, sixth manual ball valve; 15, control circuit; 16, controller; 17, check valve. DETAILED DESCRIPTION

[0018] The preferred embodiments of the utility model are described below in conjunction with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0019] Wherein the same reference numerals in the drawings all refer to the same parts.

[0020] Example 1

[0021] Referring to Figure 1 , the utility model provides an embodiment: an online liquid leakage detection device for industrial pipeline, including detection pipeline 1, detection pipeline 1 one side surface left end is sequentially provided with first manual ball valve 2, first pneumatic ball valve 3, first pressure sensor 4, pressure relief valve 5 and second manual ball valve 6 from left to right, detection pipeline 1 one side surface right end is sequentially provided with third manual ball valve 7, second pressure sensor 8, second pneumatic ball valve 9 and fourth manual ball valve 10 from left to right, detection pipeline 1 left end bottom is sequentially provided with fifth manual ball valve 11, third pneumatic ball valve 12, booster pump 13 and sixth manual ball valve 14 from left to right, first pneumatic ball valve 3, first pressure sensor 4, second pressure sensor 8, second pneumatic ball valve 9, third pneumatic ball valve 12 and booster pump 13 are connected with controller 16 through control circuit 15 and are operated, and check valve 17 is arranged between second manual ball valve 6 and sixth manual ball valve 14.

[0022] First manual ball valve 2, first pneumatic ball valve 3 and second pneumatic ball valve 9 are sequentially connected to the beginning end of detection pipeline 1 and are fixed, and third manual ball valve 7, second pneumatic ball valve 9 and fourth manual ball valve 10 are sequentially connected to the end of detection pipeline 1 and are fixed.

[0023] Fifth manual ball valve 11, third pneumatic ball valve 12, booster pump 13, sixth manual ball valve 14, check valve 17 are sequentially connected in parallel with first pneumatic ball valve 3.

[0024] The pressure relief valve 5 is arranged in parallel with the first pneumatic ball valve 3, the first pressure sensor 4 is arranged between the first pneumatic ball valve 3 and the second manual ball valve 6, and the second pressure sensor 8 is arranged between the third manual ball valve 7 and the second pneumatic ball valve 9.

[0025] Specifically, the structure of the application is formed by the detection pipeline 1, the first manual ball valve 2, the first pneumatic ball valve 3, the first pressure sensor 4, the pressure relief valve 5, the second manual ball valve 6, the third manual ball valve 7, the second pressure sensor 8, the second pneumatic ball valve 9, the fourth manual ball valve 10, the fifth manual ball valve 11, the third pneumatic ball valve 12, the booster pump 13, the sixth manual ball valve 14, the control circuit 15, the controller 16 and the one-way valve 17, which are applied to an online liquid leakage detection device for industrial pipelines. The online liquid leakage detection device for industrial pipelines can be directly applied to the leakage detection of new energy industry, textile industry, chemical industry, such as NMP conveying system, electrolyte conveying system, heat conducting oil conveying system and the like, can timely seal monitoring of the above systems, prevent liquid leakage and avoid accidents. The graphite ball valve is selected for conveying high-temperature liquid through the first manual ball valve 2, the second manual ball valve 6, the third manual ball valve 7, the fourth manual ball valve 10, the third pneumatic ball valve 12 and the sixth manual ball valve 14, and the stainless steel ball valve is selected for conveying corrosive liquid, which are mainly used for maintenance of execution valves, booster pumps and the like. The electric ball valve can be selected when there is no gas source through the first pneumatic ball valve 3, the second manual ball valve 6 and the third pneumatic ball valve 12, which mainly realizes automatic control of opening and closing of the pipeline. The first pressure sensor 4 and the second pressure sensor 8 are both provided with manual valves, which are used for detecting the pressure at both ends of the detection pipeline 1 and controlling the pulse pressure. The pressure relief valve 5 prevents the local pressure of the pipeline from being too high, automatically releases the pressure when the set value is reached, and the booster pump 13 is set according to the program, so that the pressure of the detection pipeline 1 reaches the set value under the control of the first pressure sensor 4 and the second pressure sensor 8. The controller 16 controls the state of the first pneumatic ball valve 3, the second pneumatic ball valve 9, the third pneumatic ball valve 12 and the booster pump 13 according to the data of the first pressure sensor 4 and the second pressure sensor 8. The one-way valve 17 is used as a one-way conduction from the sixth manual ball valve 14 to the second manual ball valve 6, which prevents liquid backflow and protects the booster pump 13, so that the online liquid leakage detection device for industrial pipelines can effectively solve the problems of high cost, incomplete detection and detection hysteresis of the existing industrial pipeline detection technology.

[0026] Working principle: non-detection time, the first manual ball valve 2, the first pneumatic ball valve 3, the second manual ball valve 6, the third manual ball valve 7, the second pneumatic ball valve 9 and the fourth manual ball valve 10 are kept open, the fifth manual ball valve 11 and the sixth manual ball valve 14 are kept open, the third pneumatic ball valve 12 is closed, the booster pump 13 is closed, and the liquid in the detection pipeline 1 flows directly from the first manual ball valve 2 end to the fourth manual ball valve 10.

[0027] Detection time, detection time can be automatically determined by the system, can also be set to a fixed period of detection, but also can be manually activated detection. When the trigger detection, the first pneumatic ball valve 3, the second pneumatic ball valve 9 from the open state to the closed state, the third pneumatic ball valve 12 from the closed state to the open state, the booster pump 13 start to liquid, when the second pressure sensor 8 reaches the set pressure Y1, Y1 refers to the pressure reached by the second pressure sensor 8, this pressure can be set independently, can be 0.2MPa, also can be 0.5MPa, or other values, stop liquid and close the third pneumatic ball valve 12, waiting for the first pressure sensor 4 and the second pressure sensor 8 pressure consistent for Y2, because the first pressure sensor 4 and the second pressure sensor 8 are respectively installed at the starting end and the end of the detection pipeline 1, the two pressures are inconsistent at the beginning of detection, but due to the principle of communicating vessels, the pressures at the two positions will be consistent after a certain period of time, which is Y2. Rest T1 (T1 refers to the detection time of the rest, during the rest detection time, Y2 will decrease due to poor sealing), during T1, the first pressure sensor 4 and the second pressure sensor 8 pressure are greater than ΔY (the maximum allowable pressure drop of the pipeline gas tightness in unit time), indicating that the system gas tightness is good, the system brake returns to the non-detection time state, the opposite system sends a warning to the user, the system is prohibited to start.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. An apparatus for detecting liquid leakage on-line applied to an industrial pipeline, comprising a detection pipeline (1), characterized in that, The left end of one side surface of the detection pipeline (1) is sequentially provided with a first manual ball valve (2), a first pneumatic ball valve (3), a first pressure sensor (4), a pressure relief valve (5) and a second manual ball valve (6) from left to right, the right end of one side surface of the detection pipeline (1) is sequentially provided with a third manual ball valve (7), a second pressure sensor (8), a second pneumatic ball valve (9) and a fourth manual ball valve (10) from left to right, the bottom end of the left end of the detection pipeline (1) is sequentially provided with a fifth manual ball valve (11), a third pneumatic ball valve (12), a booster pump (13) and a sixth manual ball valve (14) from left to right, the first pneumatic ball valve (3), the first pressure sensor (4), the second pressure sensor (8), the second pneumatic ball valve (9), the third pneumatic ball valve (12) and the booster pump (13) are connected and operated with the controller (16) through the control circuit (15), and the one-way valve (17) is arranged between the second manual ball valve (6) and the sixth manual ball valve (14).

2. The device for detecting liquid leakage on-line applied to industrial pipeline according to claim 1, characterized in that, The first manual ball valve (2), the first pneumatic ball valve (3) and the second pneumatic ball valve (9) are sequentially connected and fixed to the beginning end of the detection pipeline (1), and the third manual ball valve (7), the second pneumatic ball valve (9) and the fourth manual ball valve (10) are sequentially connected and fixed to the end of the detection pipeline (1).

3. The device for online detection of liquid leakage in industrial pipelines according to claim 1, characterized in that, The fifth manual ball valve (11), the third pneumatic ball valve (12), the booster pump (13), the sixth manual ball valve (14) and the one-way valve (17) are sequentially connected in parallel with the first pneumatic ball valve (3).

4. The device for online detection of liquid leakage in industrial pipelines according to claim 1, characterized in that, The pressure relief valve (5) is arranged in parallel with the first pneumatic ball valve (3), the first pressure sensor (4) is arranged between the first pneumatic ball valve (3) and the second manual ball valve (6), and the second pressure sensor (8) is arranged between the third manual ball valve (7) and the second pneumatic ball valve (9).

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