CN107559229B - Remote centralized monitoring device for local fan of tunneling working face - Google Patents
Remote centralized monitoring device for local fan of tunneling working face Download PDFInfo
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Abstract
The invention belongs to the field of coal mining, and provides a remote centralized monitoring device of a local ventilator under a coal mine, which comprises a control circuit box, wherein the control circuit box comprises a shell and a circuit monitoring module, and the circuit monitoring module comprises a first relay J1, a second relay J2, a third relay J3, a fourth relay J4, a first loop power supply monitoring relay J I and a second loop power supply monitoring relay J II which are arranged in the shell, and a first indicator lamp L1, a second indicator lamp L2, a third indicator lamp L3, a fourth indicator lamp L4, a first loop power supply monitoring indicator lamp L I, a second loop power supply monitoring indicator lamp L II, a main machine wind pressure indicator lamp LK1, a standby wind barrel wind pressure indicator lamp LK2, a reset switch K3, an audible and visual alarm Y and a local fan fault alarm indicator lamp LY which are arranged on the surface of the shell. The invention can realize the remote monitoring of the working state of the local fan and can be widely applied to the field of coal mining.
Description
Technical Field
The invention belongs to the field of coal mining, and particularly relates to a remote centralized monitoring device of an underground local ventilator of a coal mine.
Background
The underground fully-mechanized mining face of the coal mine and various roadways are developed and tunneled, fresh air flow is provided for the tunneled face by the local ventilator, and management of the underground local ventilator is important and safe work in the first place of the coal mine. In order to ensure reliable, safe and continuous operation of the ventilators and prevent unplanned sudden stop and wind stopping accidents, special people are required to be arranged at each ventilator in general. However, the noise generated when the local ventilator works is large and is generally more than 100-120 dB, the noise allowable standard (45-65 dB) specified by the country is greatly exceeded, the high noise not only affects the physical health of workers, but also causes hearing loss, emotional irritability and labor efficiency reduction for a long time in a high-intensity noise environment; and the loud noise often masks the safety warning signal in the well, causing accidents. And the local ventilators are all installed at the air inlet of the roadway, most of the roadways are supported by anchor nets at present, the section is large, and unpredictable potential safety hazards are brought to the safety nursing work of the fans. For example, in 2014, 8102, a working surface of a certain mine is subjected to roof falling together, so that the casualties of a fan caretaker are caused.
At present, most of local ventilator controllers used underground in coal mines in China are QBZ-80SF type dual-power-supply vacuum electromagnetic starters, and one power supply loop is usually required to operate, and the other loop is hot for standby. If the starter works normally, the driver can only know that the starter is in time until the switch is observed, even part of old-fashioned starter has no display window, and whether the switch works normally cannot be judged. If a power supply loop or a certain control loop in a switch fails, a driver does not find out in time, and once the fan can not realize automatic switching, an unplanned power failure and wind stopping accident can be easily caused, and the safety production of a mine is threatened. Through the teaching and training of more accidents, the device for remotely and safely nursing the fan is designed by means of a technical means, so that a caretaker can remotely nurse the fan at a safer place near the fan.
Disclosure of Invention
The invention overcomes the defects existing in the prior art, and solves the technical problems that: the remote centralized monitoring device for the local fan is provided, so that a caretaker can remotely care the fan at a safer place, and automatic centralized monitoring is realized.
In order to solve the technical problems, the invention adopts the following technical scheme: the remote centralized monitoring device for the local fan of the tunneling working face is provided with a local fan host machine and a local fan standby machine which are controlled by a magnetic starter, and comprises a shell and a circuit monitoring module, wherein the circuit monitoring module comprises a first relay J1, a second relay J2, a third relay J3, a fourth relay J4, a first loop power supply monitoring relay J I and a second loop power supply monitoring relay J II which are arranged in the shell, and a first indicator lamp L1, a second indicator lamp L2, a third indicator lamp L3, a fourth indicator lamp L4, a first loop power supply monitoring indicator lamp L I, a second loop power supply monitoring indicator lamp L II, a host wind pressure indicator lamp LK1, a standby wind pressure indicator lamp LK2, a reset switch K3, an audible and visual alarm Y and a local fan fault alarm indicator lamp LY which are arranged on the surface of the shell; one end of the first loop power supply monitoring relay II is connected with the output positive electrode of the auxiliary power supply of the standby machine controller, and the other end of the first loop power supply monitoring relay II is connected with the output negative electrode of the auxiliary power supply of the standby machine controller through the first loop power supply monitoring indicator lamp L I; one end of the first relay J1 is connected with an auxiliary power supply output positive electrode of the host controller through an auxiliary contact KM1 of a front fan controller of the host, and the other end of the first relay J1 is connected with an auxiliary power supply output negative electrode of the host controller through a first indicator lamp L1; one end of the second relay J2 is connected with an auxiliary power supply output positive electrode of the host controller through an auxiliary contact KM2 of the rear fan controller of the host, and the other end of the second relay J2 is connected with an auxiliary power supply output negative electrode of the host controller through a second indicator lamp L2; one end of the third relay J3 is connected with an auxiliary power supply output positive electrode of the host controller through an auxiliary contact KM3 of a front fan controller of the standby machine, and the other end of the third relay J3 is connected with an auxiliary power supply output negative electrode of the standby machine controller through a third indicator lamp L3; one end of the fourth relay J4 is connected with an auxiliary power supply output positive electrode of the standby machine controller through an auxiliary contact KM4 of the standby machine rear fan controller, the other end of the fourth relay J4 is connected with an auxiliary power supply output negative electrode of the standby machine controller through a fourth indicator lamp L4, and the auxiliary power supply output negative electrode of the host machine controller is connected with the auxiliary power supply output negative electrode of the standby machine controller to form a common end; one end of a normally closed contact J II-1 of the second loop power supply monitoring relay J II is connected with an auxiliary power supply output positive electrode of the host controller, the other end of the normally closed contact J II-1 is connected with the public end after passing through a reset switch K3 and an audible and visual alarm Y, a local fan fault alarm indicator LY is connected in parallel with two ends of the reset switch K3 and the audible and visual alarm Y, a normally closed contact J1-1 of the first relay J1 and a normally closed contact J3-1 of the third relay J3 are connected in series and then connected in parallel with two ends of a normally closed contact J II-1 of the second loop power supply monitoring relay J II, and a normally closed contact J2-1 of the second relay J2 and a normally closed contact J4-1 of the fourth relay J4 are connected in series and then connected in parallel with two ends of a normally closed contact J II-1 of the second loop power supply monitoring relay J II; one end of a normally closed contact J I-1 of the first loop power supply monitoring relay J I is connected with an auxiliary power supply output positive electrode of the standby machine controller, the other end of the first loop power supply monitoring relay J I is connected with the public end after passing through a reset switch K3 and an audible-visual alarm Y, the normally closed contact J1-2 of the first loop power supply monitoring relay J1 and the normally closed contact J3-2 of the third loop power supply monitoring relay J3 are connected in series and then connected in parallel with two ends of the normally closed contact J I-1 of the first loop power supply monitoring relay J I, and the normally closed contact J2-2 of the second relay J2 and the normally closed contact J4-2 of the fourth relay J4 are connected in series and then connected in parallel with two ends of the normally closed contact J I-1 of the first loop power supply monitoring relay J I.
The remote centralized monitoring device for the local fan of the tunneling working face further comprises a first air duct air pressure switch K1 and a second air duct air pressure switch K2 which are respectively arranged at a main machine of the local fan of each tunneling working face, and the circuit monitoring module further comprises a main machine air duct air pressure indicator LK1 and a standby machine air duct air pressure indicator LK2 which are arranged on the shell, wherein the first air duct air pressure switch K1 and the main machine air duct air pressure indicator LK1 are connected in series and then connected in parallel with two ends of a normally closed contact J II-1 of the second loop power supply monitoring relay J II; the second air duct wind pressure switch K2 is connected with the standby air duct wind pressure indicator lamp LK2 in series and then connected in parallel to two ends of the normally closed contact J I-1 of the first loop power supply monitoring relay J I; the first dryer wind pressure switch K1 and the second dryer wind pressure switch K2 comprise a framework, pull rings, switch junction boxes, reed switch, magnetic induction plates and springs, wherein the pull rings are arranged at two ends of the framework, and the first dryer wind pressure switch K1 and the second dryer wind pressure switch K2 are respectively bound on a local fan host dryer and a local fan standby dryer by the pull rings.
The circuit monitoring module further comprises a main machine rear fan selection switch K4 and a standby machine rear fan selection switch K5 which are arranged on the surface of the shell, wherein the main machine rear fan selection switch K4 is connected with a normally closed contact J2-1 of a second relay J2 and a normally closed contact J4-1 of a fourth relay J4 in series and then connected with two ends of a normally closed contact J II-1 of a second loop power supply monitoring relay J II in parallel; the normally-closed contact J2-2 of the second relay J2 and the normally-closed contact J4-2 of the fourth relay J4 of the standby rear fan selection switch K5 are connected in series and then connected in parallel to two ends of the normally-closed contact J I-1 of the first loop power supply monitoring relay J I.
The remote centralized monitoring device for the local fan of the tunneling working face further comprises an alarm relay J5, wherein after the local fan fault alarm indicator LY and the alarm relay J5 are connected in series, the local fan fault alarm indicator LY and the alarm relay J5 are connected in parallel to two ends of the reset switch K3 and the audible-visual alarm Y, and a normally open contact of the alarm relay J5 is used as a fault output relay contact.
And 1-3 circuit monitoring modules are arranged in the shell, and each circuit monitoring module is respectively connected with a magnetic starter of a working face fan of the heading machine.
Compared with the prior art, the invention has the following beneficial effects:
1. the working power supply of the circuit monitoring module is provided by an auxiliary power supply of a magnetic starter of the working face control local fan; the working power supply of the fault alarm part adopts a mode of cross power supply of a main machine auxiliary control power supply and a standby machine auxiliary control power supply of a local fan switch, namely if a power supply loop of a host machine and a control system have faults, an alarm power supply is provided by a standby machine loop; if the II (standby) power supply loop and the control system are in fault, the I (host) loop provides an alarm power supply, so that the circuit links of the device are reduced, the stable and continuous power supply of the device is ensured, and the monitoring alarm is reliable.
2. The invention not only is provided with the first loop power supply monitoring relay J I and the second loop power supply monitoring relay J II to monitor whether the power supply sources (namely I and II double loop power supply sources) of the main fan and the standby fan are normal, but also is provided with the first relay J1, the second relay J2, the third relay J3 and the fourth relay J4 to monitor whether the operation of the primary fan and the secondary fan is normal, so that an alarm signal can be timely found and sent out as long as any link fails, and the corresponding indicator lamp can intuitively know the working condition of the fan.
3. The invention also comprises an air duct air pressure switch arranged on the air duct, and when the air duct air pressure is insufficient due to the occurrence of air leakage, low rotating speed, damage of the fan, separation of the air duct and the like of the fan, the alarm circuit is connected, and an alarm signal is sent.
4. The invention also comprises a fault relay connected in series with the local fan fault alarm indicator lamp, and the fault signal can be timely uploaded to a team duty room or an ore dispatching room through a mine communication network by a signal output by a normally open contact of the fault relay, so that a command department can accurately master the running condition of the underground local fan in real time.
Drawings
FIG. 1 is a schematic diagram of a remote centralized monitoring device for a local fan of a tunneling working face according to an embodiment of the present invention;
fig. 2 is a schematic diagram of circuit connection of a circuit monitoring module according to an embodiment of the invention
Fig. 3 is a schematic diagram of the outline structure of a control circuit box of the remote centralized monitoring device of the local fan of the tunneling working face according to the embodiment of the invention;
FIG. 4 is a side view of FIG. 3;
fig. 5 is a schematic structural diagram of a wind pressure switch of a wind tunnel according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the installation of a wind pressure switch of a wind tunnel on the wind tunnel;
in the figure: 1 is a shell, 2 is a device panel, 3 is a handle, 4 is a wiring horn mouth, 5 is a display window 5 of a 1# switch, a 2# switch and a 3# switch (heading face name), and simultaneously is also used as a display window of a fan fault alarm flashing indicating lamp YL (flashing and shining in fault), 6 is a text indicating the content indicated by the current line indicating lamp, 7 is a text indicating the content indicated by the current line indicating lamp, 8 is each light-emitting diode indicating lamp, 10 is an alarm horn, 11 is an auxiliary grounding bolt, 12 is a panel fastening bolt, 41 is a framework of a wind pressure switch, 42 is a pull ring, 43 is a switch junction box, 44 is a reed switch, 45 is a magnetic induction plate, 46 is a spring, 47 is a wind barrel, and 48 is a band.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-4, in order to provide a remote centralized monitoring device for a tunneling working face local fan according to an embodiment of the present invention, as shown in fig. 1, a circuit according to an embodiment of the present invention includes three relatively independent identical circuit monitoring modules, which are disposed in the same housing, and each circuit monitoring module is a switch of a flameproof dual-power vacuum electromagnetic starter for a fan of a tunneling working face. As shown in fig. 2, each circuit monitoring module includes a first relay J1, a second relay J2, a third relay J3, a fourth relay J4, a first loop power monitoring relay J i and a second loop power monitoring relay J ii, a first indicator lamp L1, a second indicator lamp L2, a third indicator lamp L3, a fourth indicator lamp L4, a first loop power monitoring indicator lamp L and a second loop power monitoring indicator lamp L ii, a main machine wind pressure indicator lamp LK1, a standby machine wind pressure indicator lamp LK2, a main machine rear fan selection switch K4, a standby machine rear fan selection switch K5, a reset switch K3, an audible-visual alarm Y, and a local fan fault alarm indicator lamp LY. The first indicator lamp L1, the second indicator lamp L2, the third indicator lamp L3 and the fourth indicator lamp L4 are all green, and are respectively monitoring indicator lamps of a front fan controller of a host, a rear fan controller of the host, a front fan controller of a standby machine and a rear fan controller of the standby machine.
3-4, the outline structure of the casing is shown, the first relay J1, the second relay J2, the third relay J3, the fourth relay J4, the first loop power supply monitoring relay J I and the second loop power supply monitoring relay J II in each circuit monitoring module are arranged in the casing, and the first indicator lamp L1, the second indicator lamp L2, the third indicator lamp L3, the fourth indicator lamp L4, the first loop power supply monitoring indicator lamp L I and the second loop power supply monitoring indicator lamp L II in each circuit monitoring module, the main machine wind pressure indicator lamp LK1, the standby machine wind pressure indicator lamp LK2, the main machine rear fan selection switch K4, the standby machine rear fan selection switch K5, the reset switch K3, the audible and visual alarm Y and the local fan fault alarm indicator lamp LY are arranged on the casing. The local fan fault alarm indicator LY can be a display window, and in addition, a wiring horn mouth used for being connected with the vacuum electromagnetic starter is further arranged on the shell. In the figure, 1 is a shell of the device, 2 is a device panel, 3 is a handle, 4 is a wiring horn mouth, 5 is a display window 5 of switches 1#, 2#, 3# (heading face name), and simultaneously is also used as a display window of a fan fault alarm flashing indicator lamp YL (flashing and lighting in fault), 6 is a text indicating the content indicated by the current line indicator lamp, 7 is a text indicating the content indicated by the current line indicator lamp, 8 is each light-emitting diode indicator lamp, and 12 is a panel fastening bolt. Fig. 4 is a schematic side view of the housing 1 according to the present invention, in which 10 is an alarm horn and 11 is an auxiliary grounding bolt 11.
In fig. 1, # 2 and # 3 represent the explosion-proof dual-power vacuum electromagnetic starter switch for the fan of 3 tunneling working surfaces respectively. The "host" represents the wiring cavity of the I-loop power switch (normal operation), and the "standby" represents the wiring cavity of the II-loop power switch (normal standby). In fig. 2, KM1 represents an auxiliary contact of a primary fan (front fan) controller of the main machine, KM2 represents an auxiliary contact of a secondary fan (rear fan) controller of the main machine, KM3 represents an auxiliary contact of a primary fan (front fan) controller of the standby machine, and KM4 represents an auxiliary contact of a secondary fan (rear fan) controller of the standby machine. 24v and 0v represent the output positive and negative poles of the auxiliary power supply of the main and standby controllers.
As shown in fig. 2, one end of the first loop power supply monitoring relay cli is connected with the output positive electrode of the auxiliary power supply of the host controller, the other end of the first loop power supply monitoring relay cli is connected with the output negative electrode of the auxiliary power supply of the host controller through the first loop power supply monitoring indicator lamp cli, one end of the second loop power supply monitoring relay cli is connected with the output positive electrode of the auxiliary power supply of the standby controller, and the other end of the second loop power supply monitoring relay cli is connected with the output negative electrode of the auxiliary power supply of the standby controller through the second loop power supply monitoring indicator lamp cli; one end of the first relay J1 is connected with an auxiliary power supply output positive electrode of the host controller through an auxiliary contact KM1 of a front fan controller of the host, and the other end of the first relay J1 is connected with an auxiliary power supply output negative electrode of the host controller through a first indicator lamp L1; one end of the second relay J2 is connected with an auxiliary power supply output positive electrode of the host controller through an auxiliary contact KM2 of the rear fan controller of the host, and the other end of the second relay J2 is connected with an auxiliary power supply output negative electrode of the host controller through a second indicator lamp L2; one end of the third relay J3 is connected with an auxiliary power supply output positive electrode of the host controller through an auxiliary contact KM3 of a front fan controller of the standby machine, and the other end of the third relay J3 is connected with an auxiliary power supply output negative electrode of the standby machine controller through a third indicator lamp L3; one end of the fourth relay J4 is connected with an auxiliary power supply output positive electrode of the standby machine controller through an auxiliary contact KM4 of the standby machine rear fan controller, the other end of the fourth relay J4 is connected with an auxiliary power supply output negative electrode of the standby machine controller through a fourth indicator lamp L4, and the auxiliary power supply output negative electrode of the host machine controller is connected with the auxiliary power supply output negative electrode of the standby machine controller to form a common end; one end of a normally closed contact J II-1 of the second loop power supply monitoring relay J II is connected with an auxiliary power supply output positive electrode of the host controller, the other end of the normally closed contact J II-1 is connected with the public end after passing through a reset switch K3 and an audible and visual alarm Y, a local fan fault alarm indicator LY is connected in parallel with two ends of the reset switch K3 and the audible and visual alarm Y, a normally closed contact J1-1 of the first relay J1 and a normally closed contact J3-1 of the third relay J3 are connected in series and then connected in parallel with two ends of a normally closed contact J II-1 of the second loop power supply monitoring relay J II, a normally closed contact J2-1 of the second relay J2, a normally closed contact J4-1 of the fourth relay J4 and a fan selection switch K4 behind the host are connected in series and then connected in parallel with two ends of a normally closed contact J II-1 of the second loop power supply monitoring relay J II; one end of a normally closed contact J I-1 of the first loop power supply monitoring relay J I is connected with an auxiliary power supply output positive electrode of the standby controller, the other end of the first loop power supply monitoring relay J I is connected with the public end after passing through a reset switch K3 and an audible and visual alarm Y, the normally closed contact J1-2 of the first loop power supply monitoring relay J I and the normally closed contact J3-2 of the third loop power supply monitoring relay J3 are connected in series and then connected in parallel with two ends of the normally closed contact J I-1 of the first loop power supply monitoring relay J I, and a normally closed contact J2-2 of the second loop power supply monitoring relay J2, a normally closed contact J4-2 of the fourth loop power supply monitoring relay J4 and a standby fan selection switch K5 are connected in series and then connected in parallel with two ends of the normally closed contact J I-1 of the first loop power supply monitoring relay J I.
Each tunneling working face is provided with a main machine of a local fan and a standby machine of the local fan, which are controlled by one magnetic starter, so that each circuit monitoring module of the embodiment of the invention can monitor one magnetic starter (such as a dual-power vacuum electromagnetic starter for a QBZ-2X 120, 80/1140 (660) SF type fan) of one tunneling working face, namely two local fans. Therefore, the working states of 6 office fans of 3 tunneling working faces can be monitored simultaneously. In addition, the number of the circuit monitoring modules can be set according to the number of the tunneling working surfaces to be monitored, and the number can be 1, 2 or more than 3.
The working principle of the invention is as follows: under normal conditions, the main machine of the fan operates, and the standby machine is electrified for hot standby. When a front fan (or a front fan and a rear fan) of a host machine or a standby machine normally operates, auxiliary contacts (KM 1, KM2, KM3 and KM 4) of a corresponding fan controller are closed, corresponding relays (J1, J2, J3 and J4) connected with the auxiliary contacts in series are powered on, corresponding indicator lamps (L1, L2, L3 and L4) are on, normally closed contacts (J1-1, J2-1, J3-1 and J4-1) of the corresponding relays are disconnected, and a circuit where an audible and visual alarm Y is positioned is not connected and does not give an alarm; when the fan at the same stage of the main machine breaks down or is powered off, auxiliary contacts (KM 1 and KM 2) of a corresponding fan controller are disconnected, corresponding relays (J1 and J2) connected in series with the auxiliary contacts are powered off, corresponding indicator lamps (L1 and L2) are turned off, normally closed contacts (J1-1 and J2-1) of the corresponding relays are closed, and as the standby machine does not work at this time, normally closed contacts (J3-1 and J4-1) of the relays J3 and J4 are closed, a circuit where an audible and visual alarm Y is positioned is connected, the audible and visual alarm Y emits audible and visual alarm, and meanwhile, red local fan fault alarm indicator lamps YL which are respectively marked with a certain working face word (such as a 8106 working face or a 8110 working face) flash and shine, so as to prompt a fan carer to pay attention to checking treatment; if the fan can be automatically switched to the standby machine to continue working at the moment, auxiliary contacts (KM 3, KM 4) of a fan controller of the standby machine are closed, corresponding relays (J3, J4) connected in series with the auxiliary contacts are powered on, corresponding indicator lamps (L3, L4) are on, normally closed contacts (J3-1, J4-1) of the corresponding relays are disconnected, a loop where an audible and visual alarm Y is located is disconnected, and the alarm is stopped; if the fan can not be automatically switched to the standby machine at the moment, the audible and visual alarm Y continuously alarms until the reset button K3 is pressed or the fan is restored to normal operation.
Whether a secondary (rear motor) ventilator needs to be started or not is determined according to the size and the progress condition of a tunneling working face, if the secondary (rear motor) ventilator needs to be started, a main machine rear fan selection switch K4 and a standby machine rear fan selection switch K5 are in a closed state, and if the secondary (rear motor) ventilator does not need to be started, the main machine rear fan selection switch K4 and the standby machine rear fan selection switch K5 are in an open state, so that false alarm conditions are prevented.
When the fan fault is being examined, in order to reduce the alarm noise, the reset switch K3 can be pressed to stop the audible and visual alarm Y. At this time, the fault indicator LY is still flashing, and the fault relay 5J is still engaged until the fault is completely cleared.
Further, the embodiment of the invention further comprises a first air duct air pressure switch K1 and a second air duct air pressure switch K2 which are respectively arranged at a main machine of a local fan and a standby machine of each tunneling working face, the circuit monitoring module further comprises a main machine air duct air pressure indicator LK1 and a standby machine air duct air pressure indicator LK2 which are arranged on the shell, and the first air duct air pressure switch K1 and the main machine air duct air pressure indicator LK1 are connected in series and then connected in parallel with two ends of a normally closed contact J II-1 of the second loop power supply monitoring relay J II; the second air duct wind pressure switch K2 is connected with the standby air duct wind pressure indicator lamp LK2 in series and then connected in parallel to two ends of the normally closed contact J I-1 of the first loop power supply monitoring relay J I; as shown in fig. 5, the structure of the wind pressure switch K4 or the wind pressure switch K5 of the wind tunnel comprises a framework 41, pull rings 42 at two ends of the framework 41, a switch junction box 43, a reed switch 44, a magnetic induction plate 45 and springs 46, and as shown in fig. 6, the structure of the wind pressure switch of the wind tunnel is shown in fig. 6, and a binding belt 48 binds the wind pressure switch K1 and the wind pressure switch K2 of the wind tunnel on a wind tunnel 47 of a main machine of a local fan and a spare machine of the local fan respectively through the pull rings 42.
When the fan switch works normally and the wind pressure of the air duct is insufficient due to certain reasons (air leakage, low rotating speed, damage to the fan, separation of the air duct and the like), the air duct is loosened, the induction plate 5 is reset to be close to the reed pipe 4 under the action of the spring 6 by the wind pressure switch K bound on the air duct through the pull ring 2 by using the binding belt 8, so that the contact of the induction plate is closed to switch on an alarm loop, the corresponding air duct wind pressure indicator lamps (LK 1 and LK 2) emit light, the audible and visual alarm Y gives out an alarm, and prompts a fan caretaker to carry out inspection treatment, thereby preventing power failure and wind failure accidents.
Further, as shown in fig. 2, the circuit monitoring module further includes an alarm relay J5, after the local fan fault alarm indicator LY and the alarm relay J5 are connected in series, they are connected in parallel to two ends of the reset switch K3 and the audible-visual annunciator Y, and a normally open contact of the alarm relay J5 is used as a fault output relay contact. The fault signal can be timely uploaded to a team duty room or an ore dispatching room through a mine communication network, so that a command department can accurately grasp the running condition of the underground local ventilator in real time.
The remote centralized monitoring device for the office fan of the tunneling working face can realize remote monitoring of the office fan, realize automatic centralized monitoring and save station labor; not only ensures the management level of the mine, but also improves the safety production of the mine.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (3)
1. The remote centralized monitoring device for the local fan of the tunneling working face is characterized by comprising a shell and a circuit monitoring module, wherein the circuit monitoring module comprises a first relay J1, a second relay J2, a third relay J3, a fourth relay J4, a first loop power supply monitoring relay J I and a second loop power supply monitoring relay J II which are arranged in the shell, and a first indicator lamp L1, a second indicator lamp L2, a third indicator lamp L3, a fourth indicator lamp L4, a first loop power supply monitoring indicator lamp L I, a second loop power supply monitoring indicator lamp L II, a host wind pressure indicator lamp LK1, a standby wind pressure indicator lamp LK2, a reset switch K3, an audible and visual alarm Y and a local fault alarm indicator lamp LY which are arranged on the surface of the shell;
one end of the first loop power supply monitoring relay II is connected with the output positive electrode of the auxiliary power supply of the standby machine controller, and the other end of the first loop power supply monitoring relay II is connected with the output negative electrode of the auxiliary power supply of the standby machine controller through the first loop power supply monitoring indicator lamp L I;
one end of the first relay J1 is connected with an auxiliary power supply output positive electrode of the host controller through an auxiliary contact KM1 of a front fan controller of the host, and the other end of the first relay J1 is connected with an auxiliary power supply output negative electrode of the host controller through a first indicator lamp L1; one end of the second relay J2 is connected with an auxiliary power supply output positive electrode of the host controller through an auxiliary contact KM2 of the rear fan controller of the host, and the other end of the second relay J2 is connected with an auxiliary power supply output negative electrode of the host controller through a second indicator lamp L2; one end of the third relay J3 is connected with an auxiliary power supply output positive electrode of the host controller through an auxiliary contact KM3 of a front fan controller of the standby machine, and the other end of the third relay J3 is connected with an auxiliary power supply output negative electrode of the standby machine controller through a third indicator lamp L3; one end of the fourth relay J4 is connected with an auxiliary power supply output positive electrode of the standby machine controller through an auxiliary contact KM4 of the standby machine rear fan controller, the other end of the fourth relay J4 is connected with an auxiliary power supply output negative electrode of the standby machine controller through a fourth indicator lamp L4, and the auxiliary power supply output negative electrode of the host machine controller is connected with the auxiliary power supply output negative electrode of the standby machine controller to form a common end;
one end of a normally closed contact J II-1 of the second loop power supply monitoring relay J II is connected with an auxiliary power supply output positive electrode of the host controller, the other end of the normally closed contact J II-1 is connected with the public end after passing through a reset switch K3 and an audible and visual alarm Y, a local fan fault alarm indicator LY is connected in parallel with two ends of the reset switch K3 and the audible and visual alarm Y, a normally closed contact J1-1 of the first relay J1 and a normally closed contact J3-1 of the third relay J3 are connected in series and then connected in parallel with two ends of a normally closed contact J II-1 of the second loop power supply monitoring relay J II, and a normally closed contact J2-1 of the second relay J2 and a normally closed contact J4-1 of the fourth relay J4 are connected in series and then connected in parallel with two ends of a normally closed contact J II-1 of the second loop power supply monitoring relay J II; one end of a normally closed contact J I-1 of the first loop power supply monitoring relay J I is connected with an auxiliary power supply output positive electrode of the standby controller, the other end of the first loop power supply monitoring relay J I is connected with the public end after passing through a reset switch K3 and an audible and visual alarm Y, the normally closed contact J1-2 of the first loop power supply monitoring relay J1 and the normally closed contact J3-2 of a third relay J3 are connected in series and then connected in parallel to two ends of the normally closed contact J I-1 of the first loop power supply monitoring relay J I, and the normally closed contact J2-2 of the second relay J2 and the normally closed contact J4-2 of a fourth relay J4 are connected in series and then connected in parallel to two ends of the normally closed contact J I-1 of the first loop power supply monitoring relay J I; the circuit monitoring module further comprises a main machine wind pressure indicator LK1 and a standby machine wind pressure indicator LK2 which are arranged on the shell, wherein the first wind pressure switch K1 and the second wind pressure switch K2 are respectively arranged at the main machine of the local fan of each tunneling working face, and the first wind pressure switch K1 and the main machine wind pressure indicator LK1 are connected in series and then connected in parallel at two ends of a normally closed contact J II-1 of the second loop power supply monitoring relay J II; the second air duct wind pressure switch K2 is connected with the standby air duct wind pressure indicator lamp LK2 in series and then connected in parallel to two ends of the normally closed contact J I-1 of the first loop power supply monitoring relay J I; the first air duct wind pressure switch K1 and the second air duct wind pressure switch K2 comprise a framework (1), pull rings (2) positioned at two ends of the framework (1), a switch junction box (3), a reed switch (4), a magnetic induction plate (5) and a spring (6), and the first air duct wind pressure switch K1 and the second air duct wind pressure switch K2 are respectively bound on a local fan main machine air duct and a local fan standby machine air duct through the pull rings (2) by a binding belt (8); the circuit monitoring module further comprises a main machine rear fan selection switch K4 and a standby machine rear fan selection switch K5 which are arranged on the surface of the shell, wherein the main machine rear fan selection switch K4 is connected with a normally closed contact J2-1 of a second relay J2 and a normally closed contact J4-1 of a fourth relay J4 in series and then connected with two ends of a normally closed contact J II-1 of a second loop power supply monitoring relay J II in parallel; the normally-closed contact J2-2 of the second relay J2 and the normally-closed contact J4-2 of the fourth relay J4 of the standby rear fan selection switch K5 are connected in series and then connected in parallel to two ends of the normally-closed contact J I-1 of the first loop power supply monitoring relay J I.
2. The remote centralized monitoring device for the local fan of the tunneling working face according to claim 1, further comprising an alarm relay J5, wherein after the local fan fault alarm indicator LY and the alarm relay J5 are connected in series, the local fan fault alarm indicator LY and the alarm relay J5 are connected in parallel to two ends of the reset switch K3 and the audible and visual alarm Y, and a normally open contact of the alarm relay J5 is used as a fault output relay contact.
3. The remote centralized monitoring device for the heading face local fan according to claim 1, wherein 1-3 circuit monitoring modules are arranged in the shell, and each circuit monitoring module is respectively connected with a magnetic starter of the heading face fan.
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| CN201710785264.6A CN107559229B (en) | 2017-09-04 | 2017-09-04 | Remote centralized monitoring device for local fan of tunneling working face |
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| CN201710785264.6A CN107559229B (en) | 2017-09-04 | 2017-09-04 | Remote centralized monitoring device for local fan of tunneling working face |
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| CN109281673B (en) * | 2018-10-11 | 2021-01-26 | 中国铁建重工集团股份有限公司 | Early warning method and system for remote monitoring system of heading machine |
| CN111156186B (en) * | 2019-12-31 | 2022-02-11 | 深圳粤鹏环保技术股份有限公司 | One-use one-standby two-equipment local/remote start-stop control circuit and method |
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