Ventilation system capable of guaranteeing non-stop ventilation during power failure in coal mine production

Abstract

The utility model discloses a ventilation system capable of ensuring non-stop ventilation during power failure in coal mine production, which comprises a local ventilator, a processing module, a power supply module, a power supply module, a power supply module, a power supply module and a power supply module, and is characterized in that the processing module is used for detecting the working state of the local ventilator; the electrical storage device is used for charging and storing energy in valley electricity, is positioned in the underground ventilation tunnel and is electrically connected with the local ventilation machine; the electrical storage device is used for receiving the starting signal and supplying power to the local ventilator to enable the local ventilator to work normally; the gas sensor is arranged at the working face of the roadway and used for collecting the gas concentration of the working face of the roadway; according to the utility model, the electrical storage device is used for charging and energy storage during valley electricity, and is used for supplying power to the local ventilator during peak electricity, and in addition, the electrical storage device can be used for supplying power to the local ventilator under the special condition of large-area power failure of a mine, so that the situation that the local ventilator stops working is avoided, and the gas over-limit accident is further avoided.

Description

Technical Field

[0001] The utility model belongs to the field of coal mine production ventilation, in particular to a ventilation system which ensures that the ventilation does not stop during power outage in coal mine production. Background Art

[0002] With the rapid development of the national economy, the demand for coal is also increasing, which makes the safe production management of coal mines face a very serious problem. Nowadays, the occurrence of coal mine safety accidents is mainly because the company's safe production "long-term mechanism" has not been truly established. The foundation and support for establishing a safe production "long-term mechanism" is to establish a sound and reasonable underground ventilation system.

[0003] In the existing technology, once a power outage occurs, the underground ventilation system is paralyzed. In addition, the mine ventilation safety monitoring system is not perfect, and the ventilation system cannot be adjusted in time according to the gas concentration in various places, so that the wind speed of the ventilation system is always at full speed, and there is a phenomenon of one wind blowing, which causes waste. Utility Model Content

[0004] The utility model aims to provide a ventilation system which can ensure that the ventilation does not stop during power outage in coal mine production, so as to solve the problem that the ventilation system in the mine is in a paralyzed state and the ventilation state cannot be adjusted once a power outage occurs.

[0005] The utility model adopts the following technical solution: a ventilation system that ensures that the ventilation does not stop during power outages in coal mine production, comprising:

[0006] The local ventilator is installed at the top of the underground ventilation tunnel and is located in the ventilation duct in the ventilation tunnel. The ventilation duct is set along the tunnel.

[0007] A processing module is used to detect the working status of the local ventilator and send a start signal when the local ventilator stops working;

[0008] An electric storage device is provided for charging and storing energy during off-peak hours and is located in an underground ventilation tunnel and is electrically connected to a local ventilator. The electric storage device is used to receive a start signal and supply power to the local ventilator to enable the local ventilator to operate normally.

[0009] Gas sensors are installed at the working face of the tunnel to collect the gas concentration of the working face;

[0010] Among them, the processing module is also used to send a signal to reduce the air volume of the local fan when the gas concentration of the working face is less than the preset value, and is also used to send a signal to increase the air volume of the local fan when the gas concentration of the working face is greater than or equal to the preset value. The preset value is the lower limit gas concentration + (upper limit gas concentration - lower limit gas concentration) / 2.

[0011] Furthermore, the power storage device is also directly electrically connected to the local ventilator and is used to supply power to the local ventilator during peak power consumption.

[0012] Furthermore, it also includes:

[0013] A vibration sensor, mounted on the local ventilator, for detecting the vibration frequency of the local ventilator;

[0014] A sound sensor, mounted on the local ventilation fan, for detecting noise from the local ventilation fan;

[0015] A temperature sensor is installed on the motor bearing of the local ventilator and is used to detect the temperature of the local ventilator;

[0016] The processing module is also used to receive the vibration frequency of the vibration sensor, the noise of the sound sensor and the temperature of the temperature sensor, and compare them with the corresponding preset ranges respectively, and send an alarm signal when the vibration frequency, noise and temperature of the local fan are outside the corresponding preset ranges.

[0017] The beneficial effects of the utility model are:

[0018] The utility model utilizes the storage device to charge and store energy during off-peak hours and supplies power to local ventilators during peak hours. In addition, the storage device can also be used to supply power to local ventilators in the special case of a large-scale power outage in the mine, thereby preventing the local ventilators from stopping working and thus avoiding gas over-limit accidents.

[0019] The utility model is provided with a gas sensor, and the air volume of the local ventilator can be adjusted according to the gas concentration detected by the gas sensor, so as to avoid the wind speed being always at full speed and the phenomenon of one wind blowing;

[0020] The utility model can detect the performance of the local ventilator by arranging a vibration sensor, a sound sensor and a temperature sensor, and can give an alarm when relevant parameters of the local ventilator are abnormal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the present utility model.

[0022] Among them: 10. Local ventilation fan; 20. Processing module; 30. Power storage device; 40. Gas sensor; 50. Vibration sensor; 60. Sound sensor; 70. Temperature sensor. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] The utility model discloses a ventilation system that ensures that the ventilation does not stop during power outage in coal mine production. Figure 1 As shown, it includes a local ventilator 10 , a processing module 20 , a power storage device 30 , and a gas sensor 40 .

[0026] The local fan 10 is installed at the top of the underground ventilation tunnel. The local fan 10 is located in the ventilation duct in the ventilation tunnel, and the ventilation duct is arranged along the tunnel; the processing module 20 is used to detect the working status of the local fan 10 and send a start signal when the local fan 10 stops working.

[0027] The power storage device 30 is charged and stores energy during off-peak hours and is located in the underground ventilation tunnel. The power storage device 30 is electrically connected to the local ventilation fan 10. The power storage device 30 is used to receive a start signal and supply power to the local ventilation fan 10 so that the local ventilation fan 10 can operate normally. The gas sensor 40 is arranged at the tunnel working face and is used to collect the gas concentration of the tunnel working face.

[0028] The processing module 20 is further configured to send a signal to reduce the air volume of the local ventilator 10 when the gas concentration at the working face is less than a preset value, and to send a signal to increase the air volume of the local ventilator 10 when the gas concentration at the working face is greater than or equal to a preset value. The preset value is the lower limit gas concentration + (upper limit gas concentration - lower limit gas concentration) / 2. The power storage device 30 is also directly electrically connected to the local ventilator 10 and is configured to power the local ventilator 10 during peak electricity hours.

[0029] The present invention further includes: a vibration sensor 50 , a sound sensor 60 , and a temperature sensor 70 .

[0030] A vibration sensor 50 is installed on the local ventilator 10, and is used to detect the vibration frequency of the local ventilator 10; a sound sensor 60 is installed on the local ventilator 10, and is used to detect the noise of the local ventilator 10; a temperature sensor 70 is installed on the motor bearing of the local ventilator 10, and is used to detect the temperature of the local ventilator 10.

[0031] The processing module 20 is also used to receive the vibration frequency of the vibration sensor 50, the noise of the sound sensor 60 and the temperature of the temperature sensor 70, and compare them with the corresponding preset ranges respectively, and send an alarm signal when the vibration frequency, noise and temperature of the local fan 10 are outside the corresponding preset ranges.

[0032] The present invention can realize ventilation on demand. When the gas concentration of the working surface is between the lower limit gas concentration and the preset value, the air volume of the local ventilation fan 10 is reduced. When the gas concentration of the working surface is between the preset value and the upper limit gas concentration, or equal to the preset value, the air volume of the local ventilation fan 10 is increased. The preset value is the lower limit gas concentration + (upper limit gas concentration - lower limit gas concentration) / 2, thereby realizing automatic adjustment of the air volume.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ventilation system that ensures continuous ventilation during power outages in coal mine production, characterized in that: include: A local ventilator (10) is installed at the top of an underground ventilation tunnel and is located in a ventilation duct in the ventilation tunnel, wherein the ventilation duct is arranged along the tunnel; A processing module (20) is used to detect the working state of the local ventilator (10) and send a start signal when the local ventilator (10) stops working; An electric storage device (30) is charged and stored during off-peak hours and is located in an underground ventilation tunnel, and is electrically connected to the local ventilator (10); the electric storage device (30) is used to receive a start signal and supply power to the local ventilator (10) to enable the local ventilator (10) to operate normally; A gas sensor (40) is arranged at the working face of the tunnel and is used to collect the gas concentration of the working face of the tunnel; The processing module (20) is further configured to send a signal to reduce the air volume of the local ventilator (10) when the gas concentration of the working surface is less than a preset value, and to send a signal to increase the air volume of the local ventilator (10) when the gas concentration of the working surface is greater than or equal to a preset value, wherein the preset value is the lower limit gas concentration + (upper limit gas concentration - lower limit gas concentration) / 2.

2. A ventilation system for ensuring continuous ventilation during power outages in coal mine production according to claim 1, characterized in that: The power storage device (30) is also directly electrically connected to the local ventilator (10) and is used to supply power to the local ventilator (10) during peak electricity hours.

3. A ventilation system that ensures continuous ventilation during power outages in coal mine production according to claim 1, characterized in that: Also includes: a vibration sensor (50) mounted on the local ventilator (10) for detecting the vibration frequency of the local ventilator (10); a sound sensor (60) mounted on the local ventilator (10) for detecting noise from the local ventilator (10); a temperature sensor (70) mounted on a motor bearing of the local ventilator (10) for detecting the temperature of the local ventilator (10); The processing module (20) is further configured to receive the vibration frequency of the vibration sensor (50), the noise of the sound sensor (60), and the temperature of the temperature sensor (70), and compare them with corresponding preset ranges, respectively, and send an alarm signal when the vibration frequency, noise, and temperature of the local ventilator (10) are outside the corresponding preset ranges.

Images