CN113074873A - Leak detection device and system - Google Patents

Abstract

The application relates to a leakage detection device and a system, wherein the leakage detection device comprises a connecting piece, a shell, a float switch and a warning module. The connecting piece is connected with the pipeline, the shell is connected with the connecting piece, and the shell is provided with an accommodating cavity; the liquid in the pipeline flows into the containing cavity through the connecting piece; the pipeline is provided with a first valve; the float switch is arranged in the accommodating cavity and connected with the warning module. The float switch is used for putting through when holding inflow liquid in the chamber to make the warning module send cue signal, cue signal is used for whether the suggestion first valve takes place to leak. The application provides a leak detection device can realize detecting whether the valve that should be used for on the pipeline leaks.

Description

Leak detection device and system

Technical Field

The application relates to the technical field of valve detection, in particular to a leakage detection device and system.

Background

With the rapid development of intelligent power grids in China, electric valves are more and more widely used. Generally, the electric valve is arranged on a pipeline of a device needing to convey liquid, and the opening and closing of the pipeline can be controlled by controlling the opening and closing of the electric valve. When the electric valve is closed, the pipeline is interrupted, and liquid cannot be conveyed, however, the detection of whether the electric valve leaks or not is lacked in the prior art.

Disclosure of Invention

In view of the above, it is necessary to provide a leak detection apparatus and system for solving the above technical problems.

In one aspect, an embodiment of the present application provides a leak detection apparatus, including: the device comprises a connecting piece, a shell, a float switch and a warning module;

the connecting piece is connected with the pipeline, the shell is connected with the connecting piece, and the shell is provided with an accommodating cavity; liquid in the pipeline flows into the accommodating cavity through the connecting piece, and the pipeline is provided with a first valve; the float switch is arranged in the accommodating cavity and is connected with the warning module;

the float switch is used for putting through when holding inflow liquid in the chamber to make the warning module send cue signal, cue signal is used for whether the suggestion first valve takes place to leak.

In one embodiment, the float switch includes: the ball-cock device comprises a ball-cock rod, a first magnetic reed switch and a first floating ball;

the ball float rod is arranged in the accommodating cavity; the ball arm is provided with an accommodating cavity, and the first magnetic reed switch is arranged at one end, far away from the connecting piece, of the accommodating cavity of the ball arm; the first floating ball is sleeved at one end of the floating ball rod, which is far away from the connecting piece, and is arranged at an interval with the first magnetic reed switch;

when liquid flows into the accommodating cavity, the first floating ball moves along the floating ball rod to switch on the first magnetic reed switch, so that the warning module sends out a prompt signal to prompt that the first valve does not leak.

In one embodiment, the float switch further comprises: a second magnetic reed switch and a second floating ball;

the second magnetic reed switch is arranged at one end, close to the connecting piece, of the accommodating cavity of the ball lever; the second floating ball is sleeved at one end of the floating ball rod close to the connecting piece and is arranged at an interval with the second magnetic reed switch;

the second floater is used for moving along the ball lever when liquid flows into the accommodating cavity, and the second magnetic reed switch is switched on, so that the warning module sends a prompt signal to prompt the first valve to leak.

In one embodiment, the warning module outputs a prompt signal in a first form to prompt that the first valve is not leaked;

the warning module outputs a prompt signal in a second form to prompt the first valve to leak.

In one embodiment, the end of the housing adjacent the connector is provided with a filter assembly for filtering contaminants from the liquid entering the receiving chamber.

In one embodiment, the leak detection apparatus further comprises: the iron inner shell is arranged in the accommodating cavity and connected with the shell.

In one embodiment, the end of the iron inner shell far away from the connecting piece is in a conical structure.

In another aspect, an embodiment of the present application further provides a leak detection system, including:

the leak detection apparatus provided in the above embodiment;

and the liquid drainage device is used for draining the liquid in the accommodating cavity of the leakage detection device.

In one embodiment, a drain includes:

the infusion pipeline is connected with the shell of the leakage detection device;

the second valve is arranged at one end of the infusion pipeline close to the leakage detection device and used for controlling the on-off of the infusion pipeline;

and the liquid discharge nozzle is arranged at one end of the transfusion pipeline far away from the leakage detection device.

In one embodiment, the drain further comprises:

and the control assembly is connected with the second valve and used for controlling the on-off of the second valve.

The embodiment of the application provides a leakage detection device and system, and the leakage detection device comprises a connecting piece, a shell, a float switch and a warning module. The connecting piece is connected with the pipeline, and the casing is connected with the connecting piece, and the casing has been seted up and has been held the chamber, and liquid in the pipeline passes through the connecting piece and flows in and hold the chamber, and the pipeline is provided with first valve, and the float switch sets up in holding the chamber, and is connected with the warning module. The leak detection device that this application embodiment provided closes the back at first valve, can instruct whether still have liquid to flow in the pipeline through the float switch that holds in the chamber to whether take place to leak through warning module suggestion staff first valve, realize the detection to first valve. Therefore, the leakage first valve can be maintained by the working personnel in time, and the reliability and the practicability of the first valve can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a leak detection apparatus according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a float switch according to an embodiment of the present disclosure;

FIG. 3 is an electrical connection diagram of a float switch according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a leak detection apparatus according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a leak detection system according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a leak detection system according to an embodiment of the present application.

Description of reference numerals:

10. a leak detection device; 11. a pipeline; 12. a first valve; 20. a leak detection system; 21. a liquid discharge device; 22. a fluid delivery conduit; 23. a second valve; 24. a liquid discharge nozzle; 100. a connecting member; 200. a housing; 201. an accommodating chamber; 202. a filter assembly; 300. a float switch; 310. a cue stick; 311. an accommodating chamber; 320. a first reed switch; 330. a first floating ball; 340. a second reed switch; 350. a second floating ball; 400. a warning module; 500. an iron inner shell.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Generally, the liquid is transported by a pipeline, and a valve is arranged on the pipeline to control whether the liquid flows in the pipeline or not. However, when the valve is used for a long time or otherwise damaged, the valve may leak, and even after the valve is closed, liquid may still flow through the valve. The device for detecting the leakage of the valve is lacked in the prior art, so that after the valve is closed, when liquid still flows in a pipeline, a worker is required to check the leaked device, and manpower and material resources can be wasted. To this problem, the present application provides a leak detection device detects the valve, and this leak detection device sets up in the valve along the one side of the liquid flow direction in the pipeline. For example, the flow direction of the liquid in the pipe is from left to right, and the leak detection device is provided on the right side of the valve.

The following describes the technical solutions of the present application and how to solve the technical problems with the technical solutions of the present application in detail with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

Referring to fig. 1, one embodiment of the present application provides a leak detection apparatus 10. The leakage detecting device 10 includes a connecting member 100, a housing 200, a float switch 300, and a warning module 400. Wherein,

the connecting piece 100 is connected with the pipeline 11, the shell 200 is connected with the connecting piece 100, and the shell 200 is provided with an accommodating cavity 201; the liquid in the pipe 11 flows into the containing chamber 201 through the connecting member 100, and the pipe 11 is provided with the first valve 12. The connector 100 is provided on the side of the first valve 12 in the direction of flow of the liquid in the pipe 11. For example: the flow direction of the liquid in the pipe 11 is from left to right, and the connection member 100 is disposed at the right side of the first valve 12.

The connector 100 is welded to the pipe 11 and may be connected by a fastener. The pipe 11 is provided with a first opening, the connector 100 is provided with a second opening, the first opening and the second opening correspond such that the liquid in the pipe 11 can flow into the accommodation chamber 201 through the first opening of the pipe 11 and the second opening of the connector 100. The shape of the connecting member 100 may be a cube, or other irregular three-dimensional structures such as a rectangular parallelepiped, and the shape and structure of the connecting member 100 and the connection manner between the connecting member 100 and the pipeline 11 are not limited in this embodiment as long as the functions thereof can be achieved.

The housing 200 and the connecting member 100 may be welded together or may be connected together by a fastener. The housing 200 is opened with a third opening corresponding to the second opening of the connector 100, and the liquid in the pipe 11 flows into the accommodating cavity 201 of the housing 200 through the first opening of the pipe 11, the second opening of the connector 100 and the third opening of the housing 200. The shape of the housing 200 may be a cylinder, or other irregular three-dimensional structures such as a diamond cylinder. The present embodiment does not impose any limitation on the shape and structure of the housing 200 and the manner of connecting the housing 200 and the connecting member 100, as long as the function thereof can be achieved. The housing 200 is provided with an accommodating cavity 201, the shape of the accommodating cavity 201 can be set according to the shape of the housing 200, and the shape of the accommodating cavity 201 is not limited in this embodiment. The housing 200 is arranged below the pipe 11 so that the liquid in the pipe 11 can flow into the accommodating cavity 201 of the housing 200 through the connecting element 100.

The float switch 300 is disposed in the accommodating cavity 201 and connected to the warning module 400. Float switch 300 is used for putting through when holding chamber 201 inflow liquid to make warning module 400 send cue signal, cue signal is used for indicateing whether first valve 12 takes place to leak. The liquid in the pipe 11 flows into the containing chamber 201 from the connecting member 100, and when the liquid in the containing chamber 201 reaches a certain amount, the float switch 300 is turned on. The float switch 300 provides a signal to the alarm module 400 after being turned on, so that the alarm module 400 sends a prompt signal. Based on the indication signal, it can be determined whether the first valve 12 is leaking. The float switch 300 is a liquid level control device with simple structure and convenient use, the float switch 300 does not need to provide power supply, has no complex circuit, and has the advantages of small volume, long service life and the like compared with a common mechanical switch. And the float switch 300 does not include a bellows, a spring, a seal and the like which cause a failure, and has high reliability. The specific structure of the float switch 300 is not limited in this embodiment, as long as the function thereof can be realized.

The warning module 400 can be a warning light, a warning bell or an audible and visual alarm. The present embodiment does not limit the type of the warning module 400, and the user can select the warning module according to the actual application scenario.

In a specific embodiment, a relay is connected between the float switch 300 and the warning module 400, and after the float switch 300 is turned on, a signal is sent to the relay, and the relay controls the warning module 400 to send a prompt signal.

The leakage detecting device 10 provided in the embodiment of the present application includes a connecting member 100, a housing 200, a float switch 300, and a warning module 400. The connecting piece 100 is connected with the pipeline 11, the shell 200 is connected with the connecting piece 100, the shell 200 is provided with an accommodating cavity 201, and liquid in the pipeline 11 flows into the accommodating cavity 201 through the connecting piece 100; the pipe 11 is provided with a first valve 12; the float switch 300 is disposed in the accommodating cavity 201 and connected to the warning module 400. The leak detection device 10 that this application embodiment provided can instruct whether still have liquid to flow in the pipeline 11 through the float switch 300 that holds in the chamber 201 after first valve 12 closes to indicate staff first valve 12 to take place to leak through warning module 400, realize the detection to first valve 12. Therefore, the leaked first valve 12 can be maintained by workers in time, and the reliability and the practicability of the first valve 12 can be improved.

Referring to fig. 2, in one embodiment, the float switch 300 includes a float rod 310, a first reed switch 320, and a first float 330. Wherein, the cue 310 is arranged in the accommodation chamber 201; the ball arm 310 has a receiving cavity 311, the first reed switch 320 is disposed at an end of the receiving cavity 311 of the ball arm 310 away from the connecting element 100, and the first ball float 330 is sleeved at an end of the ball arm 310 away from the connecting element 100 and spaced from the first reed switch 320. The first floating ball 330 is used for moving along the floating ball rod 310 when the liquid flows into the accommodating cavity 201, and turning on the first magnetic reed switch 320, so that the warning module 400 sends out a warning signal to warn that the first valve 12 is not leaked.

The cue 310 is fixed in the accommodation chamber 201, and the cue 310 is opened with the accommodation chamber 311, that is to say, the cue 310 is hollow structure. The length of the cue stick 310 may be set according to the volume of the receiving chamber 201. The present embodiment does not set any limit to the length, shape, etc. of the cue 310 as long as the function thereof can be achieved. The first reed switch 320 is disposed at an end of the receiving cavity 311 of the ball float 310 away from the connector 100. When the liquid in the accommodating chamber 201 reaches a certain amount, the first floating ball 330 needs to float upward to the position of the first reed switch 320, so that the first reed switch 320 contacts, and the first floating ball 330 is disposed on the floating ball rod 310, below the first reed switch 320, and spaced from the first reed switch 320. The length of the interval between the first floating ball 330 and the first reed switch 320 can be set according to the actual scene. The present embodiment does not limit the structure, type, and the like of the first float ball 330 and the first reed switch 320, as long as the functions thereof can be achieved. In one embodiment, the length of the gap between the first float 330 and the first reed switch 320 is in the range of 15mm to 30 mm.

When a certain amount of liquid flows into the accommodating cavity 201, the first floating ball 330 floats upwards, and along with the increase of the liquid flowing into the accommodating cavity 201, the first floating ball 330 floats upwards to the first reed switch 320, and the first floating ball 330 has magnetism, so that the first reed switch 320 is closed, and a prompt signal is sent to the warning module 400. Since in practical terms, when the first valve 12 is closed, liquid may remain in the pipe 11, and when the liquid flows into the accommodating chamber 201, the first reed switch 320 is turned on. At this time, only the liquid left in the pipeline 11 makes the warning module 400 send out a prompt signal, and the prompt signal can prompt that the liquid flowing into the accommodating cavity 201 is left in the pipeline 11, and is not that the first valve 12 leaks.

In the present embodiment, the occurrence of erroneous judgment by the leak detection device 10 is prevented in consideration of the presence of the missing liquid in the pipe 11, and the reliability and usability of detection by the leak detection device 10 can be improved.

With continued reference to fig. 2, in one embodiment, the float switch 300 further includes a second reed switch 340 and a second float 350. The second reed switch 340 is arranged at one end of the accommodating cavity of the floating ball rod 310 close to the connecting piece 100; the second float ball 350 is sleeved on one end of the float rod 310 close to the connecting member 100, and is spaced from the second reed switch 340. The second float ball 350 is used for moving to the second reed switch 340 along the float rod 310 when the liquid flows into the accommodating cavity 201, so that the second reed switch 340 is turned on, and the warning module 400 sends out a warning signal to warn that the first valve 12 leaks.

In the initial state, even when there is no liquid in the accommodating chamber 201, the second float ball 350 is far away from the second reed switch 340; when the liquid in the accommodation chamber 201 floats the second float 350, the second float 350 gradually floats upward and moves toward the second reed switch 340. The interval between the second float ball 350 and the second reed switch 340 can be set according to the actual application scenario, and the present embodiment does not limit the structure, the kind, and the like of the second float ball 350 and the second reed switch 340, as long as the functions thereof can be realized. The second float ball 350 may be identical to the first float ball 330, and similarly, the second reed switch 340 may be identical to the first reed switch 320. In one specific embodiment, the length of the gap between the second float ball 350 and the second reed switch 340 is in the range of 15mm to 30 mm. In this embodiment, the second float ball 350 and the second reed switch 340 can be used to more accurately detect whether the first valve 12 leaks.

After the warning module 400 sends out the prompt signal, if the liquid flowing into the accommodating chamber 201 is still gradually increased, the second float ball 350 will float up to the second reed switch 340. Second float ball 350 is magnetic, and when second float ball 350 reaches second reed switch 340, second reed switch 340 is turned on, so that warning module 400 sends a warning signal, which warns first valve 12 of leakage. If the liquid flowing into the accommodating cavity 201 increases all the time after the first valve 12 is closed, which means that the first valve 12 leaks, the second reed switch 340 is turned on along with the increase of the liquid in the accommodating cavity 201, and a signal is sent to the warning module 400, so that the warning module 400 sends a prompt message to prompt the first valve 12 to leak.

The electrical connection between the first reed switch 320 and the second reed switch 340 is shown in fig. 3, wherein the switch between 1 and 2 corresponds to the first reed switch 320, and when the first float 330 floats to the first reed switch 320, the switch between 1 and 2 is closed; the switch between 3 and 2 corresponds to the second reed switch 340, and the switch between 3 and 2 is closed when the second float 350 floats up to the second reed switch 340.

In one embodiment, the warning module 400 outputs a warning signal in a first form to indicate that the first valve 12 is not leaking. The warning module 400 outputs a warning signal in a second form to warn of the first valve 12 leaking. That is to say, the warning module 400 sends different prompt messages for the first valve 12 not leaking and the first valve 12 leaking, so as to better distinguish whether the first valve 12 leaks, and make the leak detection apparatus 10 more practical. The first form and the second form of the warning module 400 are not limited in this embodiment, as long as the functions thereof can be realized.

In an alternative embodiment, the warning module 400 is a warning light, the first form of the warning module 400 is a bright yellow light, and the second form is a bright red light. That is, if the warning module 400 lights a yellow light, it indicates that the first valve 12 is not leaked, and the liquid in the accommodating cavity 201 is left in the pipeline 11; if the alarm module 400 is illuminated with a red light, it indicates that the first valve 12 is leaking.

In another alternative embodiment, the warning module 400 is an audible and visual warning, and the first mode of the warning module 400 is a light only and the second mode is a light and a warning sound. That is, if the warning module 400 only lights, it indicates that the first valve 12 is not leaking; if the warning module 400 is both on and off, it indicates that the first valve 12 is leaking.

Referring to fig. 4, in one embodiment, a filter assembly 202 is disposed at an end of the housing 200 near the connector 100, and the filter assembly 202 is used for filtering impurities in the liquid entering the accommodating chamber 201.

An end of the housing 200 near the connector 100, that is, a third opening of the housing 200. That is, the filter assembly 202 is disposed at the third opening of the housing 200. When the liquid in the pipe 11 flows into the accommodating cavity 201 through the third opening, the liquid flows into the filter assembly 202 first, and flows into the accommodating cavity 201 after being filtered. The present embodiment does not set any limit to the kind, structure, and the like of the filter assembly 202 as long as the function thereof can be achieved. In a particular embodiment, the filter assembly 202 is a filter screen.

In this embodiment, the impurity in the liquid flowing into the accommodating cavity 201 can be filtered through the filtering assembly 202, so that the impurity can be prevented from entering the accommodating cavity 201 to affect the float switch 300, and the detection error is caused.

With continued reference to fig. 4, the leakage detecting device 10 further includes an iron inner casing 500 disposed in the accommodating chamber 201 and connected to the housing 200. In other words, the housing of the leak detection apparatus 10 has two layers, one layer being a casing (i.e., the housing 200) which is placed in the external environment; the other layer is an inner shell (i.e., iron inner shell 500) disposed in the accommodating chamber 201. The shape of the iron inner case 500 may be set according to the shape of the case 200. The present embodiment does not impose any limitation on the structure of the iron inner case 500 as long as the function thereof can be achieved. In this embodiment, the iron inner case 500 is used to prevent the magnetic field existing in the external environment from affecting the float switch 300, so as to improve the reliability and practicability of the leakage detecting apparatus 10.

With continued reference to fig. 4, the end of the iron inner shell 500 remote from the connector 100 is tapered. That is to say, the end (the lower end of the accommodating chamber 201) of the accommodating chamber 201 far away from the connecting piece 100 is a tapered structure, and the farther away from the connecting piece 100, the smaller the volume of the accommodating chamber 201, so that when the liquid left over in the pipeline 11 flows into the accommodating chamber 201, the first reed switch 320 can be turned on, so that the warning module 400 sends out a prompt signal to prompt that the liquid flowing into the accommodating chamber 201 is left over in the pipeline 11, and is not leaked into the first valve 12, that is, the first valve 12 does not leak, so that the practicability and reliability of the leakage detection device 10 can be improved.

Referring to fig. 5, one embodiment of the present application provides a leak detection system 20. The leak detection system 20 includes the leak detection apparatus 10 and the drain 21 provided as the above-described embodiments. The drain 21 is used to drain the liquid in the housing chamber 201 of the leak detection apparatus 10. The drain 21 includes a first end and a second end, the first end of the drain 21 penetrates the housing 200 of the leak detector 10 into the accommodating cavity 201, and the second end of the drain 21 is far away from the accommodating cavity 201. If it is desired to collect the liquid in the receiving chamber 201, the second end of the draining device 21 is connected to a collecting tank for collecting the liquid in the receiving chamber 201. The present embodiment does not set any limitation to the structure of the liquid discharge device 21 as long as the function thereof can be achieved.

After the leak detector 10 determines that the first valve 12 is not leaking and the liquid in the accommodating chamber 201 is the liquid left in the pipe 11, the liquid in the accommodating chamber 201 can be discharged through the liquid discharge device 21. If the leak detector 10 determines that the first valve 12 is leaking, the liquid in the accommodating chamber 201 is drained by the drain 21 after the first valve 12 is repaired.

The leak detection system 20 provided in the embodiment of the present application includes the leak detection apparatus 10, and the leak detection system 20 has all the structures and beneficial effects of the leak detection apparatus 10, and will not be described herein again.

Referring to FIG. 6, in one embodiment, drain 21 includes an infusion line 22, a second valve 23, and a drain nozzle 24. The infusion tube 22 is connected to the housing 200 of the leak detection apparatus 10; the second valve 23 is arranged at one end of the infusion pipeline 22 close to the leakage detection device 10 and is used for controlling the on-off of the infusion pipeline 22; a drain nozzle 24 is provided at the end of the infusion line 22 remote from the leak detection device 10.

The administration line 22 includes a first end and a second end, the second end of the administration line 22 being the end of the administration line 22 distal from the leak detection apparatus 10. A first end of the infusion tube 22 is inserted into the housing 200 of the leak detection apparatus 10 and the accommodating cavity 201, and a liquid discharge nozzle 24 is disposed at a second end of the infusion tube 22. The second valve 23 is disposed at an end of the infusion tube 22 close to the leak detector 10, i.e. a joint between the infusion tube 22 and the housing 200, and the second valve 23 is used for controlling on/off of the infusion tube 22. This ensures that the liquid in the pipe 11 flowing into the accommodating chamber 201 is in the accommodating chamber 201 when the second valve 23 is closed. If the second valve 23 is disposed at an end away from the leak detector 10, a portion of the liquid flowing into the accommodating chamber 201 from the pipe 11 may flow into the infusion pipe 22, resulting in inaccurate detection by the leak detector 10. The discharge nozzle 24 may be provided to facilitate the discharge of liquid from the administration line 22. In the present embodiment, the length, shape, material, etc. of the infusion tube 22 are not limited at all, and the user can select the length, shape, material, etc. according to the application scenario. In the present embodiment, the kind, structure, and the like of the second valve 23 and the liquid discharge nozzle 24 are not limited as long as the functions can be realized. In one particular embodiment, the second valve 23 is an electrically actuated valve. The liquid discharge device 21 provided in this embodiment has a simple structure and is easy to implement.

With continued reference to fig. 6, in one embodiment, the drain 21 further includes a control assembly 25. The control assembly 25 is connected to the second valve 23 for controlling the on/off of the second valve 23. The control component 25 may be a computer device, which may be, but not limited to, various industrial computers, notebook computers, smart phones, tablet computers, portable wearable devices, and the like, and may also be a control chip. When it is determined that the liquid in the housing chamber 201 is the liquid left in the pipe 11, the control unit 25 controls the second valve 23 to be opened, so that the liquid in the housing chamber 201 is discharged through the liquid feed pipe 22 and the liquid discharge nozzle 24. Upon determining that the liquid in the housing chamber 201 is leaked into the first valve 12, the control unit 25 disconnects the second valve 23 after the first valve 12 is repaired, so that the liquid in the housing chamber 201 is discharged through the liquid feed pipe 22 and the liquid discharge nozzle 24. In this embodiment, it is convenient to control the on/off of the second valve 23 by using the control assembly 25.

In one embodiment, the control component 25 may be connected to the alarm module 400 of the leak detection apparatus 10. The control component 25 can receive the signal sent by the warning module 400. The control module 25 controls according to the received various signals. For example: if the control module 25 receives a signal indicating that the first valve 12 is not leaking, the control module 25 directly controls the second valve 23 to open, so that the liquid in the accommodating chamber 201 is discharged through the liquid conveying pipe 22 and the liquid discharging nozzle 24. If the control module 25 receives a signal indicating that the first valve 12 is leaking, the control module 25 will control the second valve 23 to be opened to discharge the liquid in the accommodating chamber 201 only after receiving a signal that the operator inputs that the first valve 12 is being serviced.

In one embodiment, the electrical connection between the float switch 300 and the alarm module 400 includes a protective cover to prevent electrical leakage and other safety accidents.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A leak detection apparatus, characterized in that the leak detection apparatus comprises: the device comprises a connecting piece, a shell, a float switch and a warning module;

the connecting piece is connected with a pipeline, the shell is connected with the connecting piece, and the shell is provided with an accommodating cavity; the liquid in the pipeline flows into the accommodating cavity through the connecting piece, and the pipeline is provided with a first valve; the float switch is arranged in the accommodating cavity and is connected with the warning module;

the float switch is used for being switched on when liquid flows into the accommodating cavity, so that the warning module sends a prompt signal, and the prompt signal is used for prompting whether the first valve leaks or not.

2. The leak detection device of claim 1, wherein the float switch comprises: the ball-cock device comprises a ball-cock rod, a first magnetic reed switch and a first floating ball;

the ball float rod is arranged in the accommodating cavity; the ball arm is provided with an accommodating cavity, and the first magnetic reed switch is arranged at one end, far away from the connecting piece, of the accommodating cavity of the ball arm; the first floating ball is sleeved at one end of the floating ball rod, which is far away from the connecting piece, and is arranged at an interval with the first magnetic reed switch;

the first floating ball is used for moving along the floating ball rod when liquid flows into the accommodating cavity and switching on the first magnetic reed switch, so that the warning module sends out the warning signal to warn that the first valve is not leaked.

3. The leak detection device of claim 2, wherein the float switch further comprises: a second magnetic reed switch and a second floating ball;

the second magnetic reed switch is arranged at one end, close to the connecting piece, of the accommodating cavity of the ball lever; the second floating ball is sleeved at one end of the floating ball rod close to the connecting piece and is arranged at an interval with the second magnetic reed switch;

the second floating ball is used for moving along the floating ball rod when liquid flows into the accommodating cavity and switching on the second magnetic spring switch, so that the warning module sends out the warning signal to prompt the first valve to leak.

4. The leak detection device according to claim 2 or 3, wherein the warning module outputs the prompt signal in a first form to prompt that the first valve is not leaking;

the warning module outputs the prompt signal in a second form to prompt the first valve to leak.

5. The leak detection apparatus as recited in claim 1, wherein an end of the housing proximate the connector is provided with a filter assembly for filtering contaminants from the liquid entering the receiving chamber.

6. The leak detection apparatus according to claim 1, further comprising: and the iron inner shell is arranged in the accommodating cavity and connected with the shell.

7. The leak detection apparatus as recited in claim 6, wherein an end of the ferrous inner housing remote from the connector is of a tapered configuration.

8. A leak detection system, comprising:

the leak detection apparatus according to any one of claims 1 to 7;

and the liquid drainage device is used for draining the liquid in the accommodating cavity of the leakage detection device.

9. The leak detection system of claim 8, wherein the drain comprises:

a transfusion tube connected to a housing of the leak detection apparatus;

the second valve is arranged at one end of the infusion pipeline close to the leakage detection device and used for controlling the on-off of the infusion pipeline;

and the liquid discharge nozzle is arranged at one end of the transfusion pipeline, which is far away from the leakage detection device.

10. The leak detection system of claim 9, wherein the drain further comprises:

and the control assembly is connected with the second valve and used for controlling the on-off of the second valve.

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