Fault detection and early warning device for fan in tunnel

Abstract

The utility model discloses a fault detection and early warning device for a fan in a tunnel. The fault detection and early warning device comprises an assembly shell, the side wall of the assembly shell is fixedly connected with a connecting block, an installation mechanism is fixedly assembled in the assembly shell, a vibration sensor is fixedly assembled on the assembly shell through the installation mechanism, and an alarm is fixedly assembled on the top of the assembly shell. The state of the fan in the operation process can be detected through the vibration sensor assembled in the assembly shell, when the fan operates abnormally, vibration of different frequencies can occur, and when the vibration frequency exceeds the range set by the vibration sensor, the alarm gives an alarm, so that the fan is prevented from being damaged. According to the utility model, the operation state of the fan is monitored in the tunnel, the structure is simpler, the installation process is convenient, the debugging process of the vibration sensor is simpler and more convenient through the arranged installation mechanism, and the time for erecting a ventilation system is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel ventilation technical field, concretely relates to a tunnel inside fan fault detection early warning device. BACKGROUND

[0002] In the process of tunnel construction, ventilation pipeline is erected in the hole in time, ventilation pipeline can effectively carry out gas exchange in the tunnel, and the harmful gas generated in the construction process is discharged to the outside in time, and the freshness of the air in the tunnel is improved. The fan and the ventilation pipeline are used in cooperation in the process of tunnel ventilation, and the fan drives the circulation of air as a power source. If the fan fails, the air flow in the tunnel may be affected, thereby affecting the discharge of harmful gas in the tunnel and the exchange of external air into the tunnel. The monitoring equipment needs to be used to monitor the fan during operation. However, the existing fan monitoring equipment is large in size and complex in setting, and is not convenient to apply in the ventilation pipeline of tunnel construction. Therefore, we propose a tunnel inside fan fault detection early warning device. UTILITARIAN CONTENT

[0003] The utility model aims at providing a tunnel inside fan fault detection early warning device to solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a tunnel inside fan fault detection early warning device, including assembly shell, the lateral wall of assembly shell is fixedly connected with connecting block, the installation mechanism is fixedly installed in the assembly shell, the vibration sensor is fixedly installed in the assembly shell through the installation mechanism, the top of assembly shell is fixedly installed with alarm;

[0005] The installation mechanism includes a fixing frame and an adjusting frame, the adjusting screw is screwed in the fixing frame, one end of the adjusting screw is fixedly connected with the handle wheel, the other end of the adjusting screw is rotatably connected with the lateral wall of the adjusting frame, and the limiting assembly is assembled between the adjusting frame and the assembly shell.

[0006] Preferably, the fixing frame includes a first fixed body, a connecting shaft is fixedly connected between the first fixed body and the assembly shell, the number of connecting shafts is four, and the four connecting shafts are evenly distributed in a circle at the center of the first fixed body.

[0007] Preferably, the adjusting frame includes a second fixed body, a connecting groove is integrally formed in one side wall of the second fixed body, a supporting shaft is fixedly connected to the other side wall of the second fixed body, and an assembly block is fixedly connected to the end of the supporting shaft.

[0008] Preferably, the limiting assembly comprises a limiting shaft, one end of the limiting shaft is fixedly connected to the side wall of the second fixed body, and the other end of the limiting shaft is slidably connected in a limiting groove, and the limiting groove is arranged in the inner cavity side wall of the assembly shell.

[0009] Compared with the prior art, the tunnel fan fault detection and early warning device has the advantages that the assembly shell is installed between the fan and the ventilation pipeline, the vibration sensor installed in the assembly shell can detect the state of the fan during operation, different frequencies of vibration occur when the fan operates abnormally, the alarm alarm when the frequency of vibration exceeds the range set by the vibration sensor, the operation state of the fan in the tunnel is monitored by the utility model, the structure is simpler, the installation process is convenient, and the adjustment process of the vibration sensor is also simpler and more convenient through the installed mounting mechanism, thereby saving the time used in erecting the ventilation system. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a perspective view of the utility model.

[0011] Figure 2 It is a structural schematic view of the utility model.

[0012] Figure 3 It is a structural schematic view of the utility model after being assembled with the fan.

[0013] Figure 4 It is an internal structural schematic view of the utility model after being assembled with the fan.

[0014] In the figure: 1, assembly shell; 2, connecting block; 3, mounting mechanism; 31, fixed frame; 311, first fixed body; 312, connecting shaft; 32, adjusting frame; 321, second fixed body; 322, connecting groove; 323, supporting shaft; 324, assembly block; 33, adjusting screw; 34, handle wheel; 4, vibration sensor; 5, alarm; 6, limiting assembly; 61, limiting shaft; 62, limiting groove. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model.

[0016] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model provides a technical scheme: a tunnel inside fan fault detection early warning device, including assembly shell 1, assembly shell 1 is annular, the left and right two ends of assembly shell 1 are integrally formed with connecting block 2, assembly shell 1 is used for installing between fan and ventilation pipe, connecting block 2 is used for the assembly fixed of fixed bolt and fixed nut, and assembly shell 1 is connected and fixed with fan and ventilation pipe through the cooperation of fixed bolt and fixed nut, and assembly shell 1 is assembled with mounting mechanism 3, assembly shell 1 is assembled with vibration sensor 4 through mounting mechanism 3, vibration sensor 4 is MVA-LF low frequency vibration sensor, can monitor the vibration frequency in the running process of fan in the process of using, when vibration frequency exceeds the normal value set when fan runs, then can judge the running state of fan, alarm 5 is fixedly assembled at the top of assembly shell 1, and alarm 5 is explosion-proof sound and light alarm, and the outside is provided with protective fence and can protect the main body of alarm 5, alarm 5 is provided with control module inside, and alarm 5 is electrically connected with external power supply and vibration sensor 4, when vibration sensor 4 detects that vibration data is abnormal in the running process of fan, then sends electric signal to alarm 5, alarm 5 alarms, reminds construction personnel to maintain and maintain fan in time in the tunnel.

[0017] Mounting mechanism 3 includes fixed frame 31 and adjusting frame 32, and the fixed frame 31 is fixedly assembled in the inner cavity of the assembly shell 1. The center of the fixed frame 31 is screwed with an adjusting screw 33. One end of the adjusting screw 33 is rotatably connected with the side wall of the adjusting frame 32. The other end of the adjusting screw 33 is fixedly connected with a handle wheel 34. The adjusting frame 32 and the assembly shell 1 are fixedly assembled with a limiting component 6. The limiting component 6 can adjust the assembly position of the adjusting frame 32 during the rotation of the adjusting screw 33. The position of the adjusting frame 32 can be adjusted to debug the installation position of the vibration sensor 4 during installation, so that the vibration sensor 4 is fitted with the middle position of the fan, and the vibration sensor 4 monitors the state of the fan during operation.

[0018] As shown in Figure 2 The fixed frame 31 includes a first fixed body 311. One end of the connecting shaft 312 is fixedly connected with the side wall of the first fixed body 311. The other end of the connecting shaft 312 is fixedly connected with the inner cavity side wall of the assembly shell 1. The number of the connecting shaft 312 is four. The four connecting shafts 312 are evenly distributed in a circle at the center of the first fixed body 311. The four connecting shafts 312 can improve the stability of the fixation of the first fixed body 311. The adjusting screw 33 is screwed in the middle of the first fixed body 311.

[0019] The adjusting frame 32 comprises a second fixed body 321, the second fixed body 321 is integrally formed with a connecting groove 322 close to the side wall of the fixed frame 31, the end of the adjusting screw 33 is rotationally connected in the connecting groove 322, the other side wall of the second fixed body 321 is integrally formed with a supporting shaft 323, the end of the supporting shaft 323 is fixedly connected with an assembly block 324, the assembly block 324 is used for assembly and fixation of the vibration sensor 4, and the length distance of the adjusting frame 32 can be strengthened through the supporting shaft 323, so that the vibration sensor 4 is conveniently attached to the fan.

[0020] The limiting assembly 6 comprises limiting shafts 61, one end of the limiting shafts 61 is welded and fixed on the side wall of the second fixed body 321, the other end of the limiting shafts 61 is slidingly connected in limiting grooves 62, the limiting grooves 62 are opened in the inner cavity side wall of the assembly shell 1, the number of the limiting shafts 61 is four, the four limiting shafts 61 are evenly distributed in a circle at the center of the second fixed body 321, and the position of the adjusting frame 32 in the assembly shell 1 can be adjusted in the process of rotating the adjusting screw 33 through limiting of the limiting shafts 61 by the limiting grooves 62.

[0021] Working principle: as Figure 3 and Figure 4 shown in the utility model structure is simple, in the process of using, through the mutual cooperation of the fixing bolt and the fixing nut, the assembly shell 1 is fixedly assembled between the fan and the ventilation pipeline, and the specific installation process is that the assembly shell 1 is connected and fixed with the fan first, then the handle wheel 34 of the installation mechanism 3 is rotated according to the distance between the vibration sensor 4 and the fan, the position of the vibration sensor 4 is adjusted through the rotating adjusting screw 33, the vibration sensor 4 is attached to the side wall of the fan inside the fan, and the vibration sensor 4 does not affect the normal rotation and operation of the fan, after the installation and debugging of the vibration sensor 4 are completed, the assembly shell 1 is connected with the ventilation pipeline, in the process of using, the air in the ventilation pipeline is driven by the fan to circulate the gas in the tunnel, if the fan fails during operation, exceeds the detection range set by the vibration sensor 4, then the vibration sensor 4 transmits an electric signal to the alarm 5, the alarm 5 alarms, reminding the staff to repair the fan, and the stability of the ventilation performance of the fan is ensured.

Claims

1. A fault detection and early warning device for ventilation fans in tunnels, comprising an assembly housing (1), characterized in that: The side wall of the assembly shell (1) is fixedly connected to a connecting block (2), the assembly shell (1) is fixedly assembled with an installation mechanism (3), the assembly shell (1) is fixedly assembled with a vibration sensor (4) through the installation mechanism (3), and the top of the assembly shell (1) is fixedly assembled with an alarm (5). The installation mechanism (3) includes a fixed frame (31) and an adjusting frame (32). An adjusting screw (33) is screwed into the fixed frame (31). One end of the adjusting screw (33) is fixedly connected to a handle wheel (34). The other end of the adjusting screw (33) is rotatably connected to the side wall of the adjusting frame (32). A limit component (6) is assembled between the adjusting frame (32) and the assembly shell (1).

2. The tunnel ventilation fan fault detection and early warning device according to claim 1, characterized in that: The fixing frame (31) includes a first fixing body (311), and a connecting shaft (312) is fixedly connected between the first fixing body (311) and the assembly shell (1). There are four connecting shafts (312), and the four connecting shafts (312) are evenly distributed in a circle around the center of the first fixing body (311).

3. The tunnel ventilation fan fault detection and early warning device according to claim 1, characterized in that: The adjustment frame (32) includes a second fixing body (321), one side wall of the second fixing body (321) is integrally formed with a connecting groove (322), the other side wall of the second fixing body (321) is fixedly connected with a support shaft (323), and the end of the support shaft (323) is fixedly connected with an assembly block (324).

4. The tunnel ventilation fan fault detection and early warning device according to claim 1, characterized in that: The limiting component (6) includes a limiting shaft (61), one end of which is fixedly connected to the side wall of the second fixing body (321), and the other end of which is slidably connected to the limiting groove (62), which is opened in the inner cavity side wall of the assembly shell (1).

Images