Automatic air leakage detection and alarm device of compressed air conveying system for mining

Abstract

The utility model discloses an air leakage automatic detection alarm device of a compressed air conveying system for mining, and belongs to the technical field of compressed air systems. An automatic air leakage detecting and alarming device of a compressed air conveying system for mining comprises an air compressor, a conveying pipeline communicated with the outlet end of the air compressor and a sealing cover covering the joint of the conveying pipeline, a communicating pipe is arranged on one side of the sealing cover and communicated with the interior of the sealing cover, and the communicating pipe is communicated with the interior of the sealing cover. An airflow sensor is arranged in the communicating pipe; the air leakage detection device has the advantages that whether the conveying pipeline in the compressed air system leaks air or not can be conveniently and quickly detected, and the specific position of an air leakage point can be confirmed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pressurized air system technical field especially relates to a mine exploitation pressurized air conveying system's air leakage automatic detection alarm device. BACKGROUND

[0002] The mine environment in the mine is special, there are a lot of gas and dust, adopt the mine pressurized air system as the power source of the underground mining equipment, compared with the electric equipment and more safety.

[0003] With the development of mining technology, the depth of the mine increases greatly, and the mining equipment also increases, the gas pipeline of the mine pressurized air system, air compressor equipment, gas storage tank etc., when the equipment of the pressurized air system in the mine is reformed, safety upgrades, how to avoid the air leakage of the trunk gas pipeline and avoid the leakage, has been the problem that the pressurized air system needs to solve, in addition to the daily inspection, maintain the airtightness of the equipment, the existing pressurized air system lacks the detection equipment that can find the leakage position in time. UTILITY MODEL CONTENT

[0004] The utility model discloses a mine exploitation pressurized air conveying system's air leakage automatic detection alarm device to solve the problem that the existing pressurized air system lacks the detection equipment that can find the leakage position in time.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A mine exploitation pressurized air conveying system's air leakage automatic detection alarm device, including the conveying pipeline that communicates with the export end of air compressor, and the seal cover that covers the connecting place of conveying pipeline, one side of seal cover is provided with the communicating pipe, the communicating pipe communicates with the inside of seal cover, the inside of communicating pipe is provided with the air flow sensor.

[0007] Further, the seal cover includes two semicircular covers, the two semicircular covers are fixed on the outside of the flange by butt joint and fastening, and the communicating pipe communicates with the inside of the semicircular cover.

[0008] Further, the inside of the semicircular cover is provided with a sealing lining, the semicircular cover and the conveying pipeline are sealed and connected by the sealing lining, and the communicating pipe communicates with the inside of the sealing lining.

[0009] Further, the inside of the seal cover contains a detection liquid.

[0010] Further, the seal cover is a transparent structure.

[0011] Further, the inside of the communicating pipe is provided with a liquid level sensor for detecting the change of the liquid level of the detection liquid.

[0012] Further, the axis of the communication pipe is arranged along the axial direction of the conveying pipe, or along the radial direction of the conveying pipe.

[0013] Compared with the prior art, the mine exploitation air leakage automatic detection alarm device with compressed air conveying system has the following beneficial effects:

[0014] The mine exploitation air leakage automatic detection alarm device with compressed air conveying system, when laying the conveying pipe, installs the sealing cover, the communication pipe and the airflow sensor at the connecting position between the two conveying pipes, when air leakage occurs at a certain connecting position, the airflow flows in the sealing cover and flows out from the communication pipe, when the airflow flows out from the communication pipe 3, the airflow sensor detects the airflow change, thereby discovering air leakage in time and determining the air leakage position, as a supplement to daily inspection, can effectively avoid the situation that artificial inspection cannot discover air leakage all day and in time, and reduce losses.

[0015] Other advantages, objects and features of the present application will be set forth in part in the following description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned from practice of the present application; and the advantages of the present application can be realized and attained by means of the instrumentalities and combinations particularly pointed out in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is one of the overall structure perspective schematic view of the present application;

[0017] Figure 2 It is an overall structure explosion effect schematic view of the present application;

[0018] Figure 3 It is an overall structure cross-section effect perspective schematic view of the present application;

[0019] Figure 4 It is an overall structure cross-section effect front view schematic view of the present application;

[0020] Figure 5 It is the second overall structure perspective schematic view of the present application.

[0021] In the drawings:

[0022] 1, conveying pipe; 101, flange; 2, sealing cover; 201, semicircular cover; 202, sealing lining; 3, communication pipe; 301, airflow sensor; 302, liquid level sensor. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments.

[0024] With reference to Figures 1-5 The utility model discloses a mine is with compressed air conveying system's air leakage automatic detection alarm device, including the air compressor that is the compressed air output of whole compressed air system, the outlet end intercommunication of air compressor, and the seal cover 2 of cover in the junction of conveying pipeline 1, the end of conveying pipeline 1 is welded with flange 101, and the intercommunication of two conveying pipeline 1 is through flange 101, because the junction of flange 101 is the position that the most often air leakage occurs, therefore installs seal cover 2 at this position, and seal cover 2 is used to cover flange 101.

[0025] The side of seal cover 2 is fixedly connected with the communicating pipe 3, the communicating pipe 3 is communicated with the inside of seal cover 2, and the inside of communicating pipe 3 is installed with airflow sensor 301, when the gap between two flanges 101 appears air leakage, because two flanges 101 are covered by seal cover 2, therefore airflow flows in seal cover 2, and finally is discharged from communicating pipe 3, when compressed air flows through communicating pipe 3, airflow sensor detects the air flow, and airflow sensor is connected with remote control platform, and sends signal to remote control platform and alarms, and the remote control platform that is used to receive airflow sensor can know the position of conveying pipeline 1 through the number of airflow sensor, thereby discovering air leakage in time, and the position of air leakage is clear.

[0026] Seal cover 2 includes two semicircular covers 201, and the cross-sectional structure of the axial view of semicircular cover 201 along conveying pipeline 1 is annular structure, and the cross-sectional structure of the radial direction of conveying pipeline 1 is semicircular arc structure, and the radius of the inner circle of annular structure is equal to the outer diameter of conveying pipeline 1, and two semicircular covers 201 are oppositely arranged and sealed on conveying pipeline 1, and are fixedly connected together through bolts.

[0027] Specifically, two semicircular covers 201 are butt-jointed and fixed on the outside of flange 101, and wrap two flanges 101, and communicating pipe 3 is communicated with the inside of semicircular cover 201, for making compressed air leaked in conveying pipeline 1 discharge from communicating pipe 3.

[0028] The inside of semicircular cover 201 is installed with sealing lining 202, the shape of sealing lining 202 is similar to the shape of semicircular cover 201, sealing lining 202 is made of rubber pad and other sealing materials, semicircular cover 201 and conveying pipeline 1 are sealed and connected through sealing lining 202, communicating pipe 3 is communicated with the inside of sealing lining 202, and sealing cover has sealing effect through sealing lining 202, to avoid the influence of air leakage of sealing cover on the accuracy of detection.

[0029] The inside of the sealing cover 2 contains detection liquid, which can be water, oil, or other non-volatile safe liquid. Since the conveying pipeline 1 is a pressure pipeline, there is no need to worry about the detection liquid entering the inside of the conveying pipeline 1 when the pipeline leaks. When the flange 101 of the sealing cover 2 leaks, the compressed air enters the water and is discharged from the communication pipe 3. This can be observed by the naked eye, and in addition to being detected by the air flow sensor 301, it can also be directly observed by a human.

[0030] The sealing cover 2 is transparent, which facilitates direct observation of whether there are bubbles in the detection liquid inside the sealing cover 2. Of course, in this case, the sealing liner 202 is a semicircular ring-shaped sealing ring, which is mainly installed in the gap between the semicircular outer cover 201 and the circumferential outer wall of the conveying pipeline 1, so as to avoid blocking the observation line of sight of the semicircular outer cover 201 covering the flange 101 outside the main body part.

[0031] The inside of the communication pipe 3 is provided with a liquid level sensor 302 for detecting the change of the liquid level of the detection liquid, which is used to detect the change of the liquid level of the detection liquid in the sealing cover 2, so as to avoid the situation that the leakage of the sealing cover 2 itself leads to the reduction of the detection liquid and affects the detection of the leakage.

[0032] The axis of the communication pipe 3 is arranged along the axial direction of the conveying pipeline 1, or along the radial direction of the conveying pipeline 1. Specifically, the axial arrangement of the communication pipe 3 has two cases, as shown in Figure 1 and Figure 5 The axis of the communication pipe 3 is arranged along the axial direction of the conveying pipeline 1, which is used in the case that the pipeline conveying pipeline 1 is laid along the horizontal direction. The axis of the communication pipe 3 is arranged along the radial direction of the conveying pipeline 1, which is used in the case that the conveying pipeline 1 is laid along the vertical direction, so that the communication pipe 3 always maintains a vertical upward state.

[0033] Working principle: when laying the conveying pipeline, the sealing cover 2 is installed at the connection of the flange 101 between two conveying pipelines 1, and the detection liquid is filled. When leakage occurs at a certain connection, air bubbles are formed in the detection liquid, and the air bubbles flow in the sealing cover 2 and are discharged from the communication pipe 3. When the air bubbles flow out of the communication pipe 3, the air flow sensor 301 detects the air flow carried in the air bubbles, so as to timely discover the leakage and send a signal to the remote control console for alarm and to determine the location of the leakage.

[0034] Alternatively, when manually inspecting, whether there is leakage at the connection can also be judged by observing whether there are air bubbles in the detection liquid in the sealing cover 2, so as to quickly detect whether the conveying pipeline 1 leaks.

[0035] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical scope disclosed by the present application, and all of them should be covered within the protection scope of the present application.

[0036] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0037] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A mine air leakage automatic detection alarm device for mine air pressure conveying system, characterized in that, The utility model relates to a sealing cover for air compressor, which comprises a conveying pipeline communicated with the outlet end of an air compressor, and a sealing cover (2) covering the joint of the conveying pipeline (1), wherein one side of the sealing cover (2) is provided with a communicating pipe (3) communicated with the inside of the sealing cover (2), and the inside of the communicating pipe (3) is provided with an air flow sensor (301).

2. The mine air leakage automatic detection and alarm device for pressure air conveying system of mine exploitation according to claim 1, characterized in that, The sealing cover (2) comprises two semicircular outer covers (201) fixedly connected to the outer side of a flange (101) by butt joint, and the communicating pipe (3) is communicated with the inside of the semicircular outer cover (201).

3. The air leakage automatic detection and alarm device for mine using compressed air conveying system according to claim 2, characterized in that, The inside of the semicircular outer cover (201) is provided with a sealing inner liner (202), the semicircular outer cover (201) and the conveying pipeline (1) are sealedly connected by the sealing inner liner (202), and the communicating pipe (3) is communicated with the inside of the sealing inner liner (202).

4. The air leakage automatic detection and alarm device for mine using compressed air conveying system according to claim 1, characterized in that, The inside of the sealing cover (2) contains a detection liquid.

5. The air leakage automatic detection and alarm device for mine using compressed air conveying system according to claim 4, characterized in that, The sealing cover (2) is transparent.

6. The air leakage automatic detection and alarm device for mine using compressed air conveying system according to claim 5, characterized in that, The inside of the communicating pipe (3) is provided with a liquid level sensor (302) for detecting the change of the liquid level of the detection liquid.

7. The mine air leakage automatic detection and alarm device for pressure air conveying system of mine exploitation according to claim 1, characterized in that, The axis of the communicating pipe (3) is arranged along the axial direction of the conveying pipeline (1), or along the radial direction of the conveying pipeline (1).

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