On-line detection device for compressed air injection control valve of bag-type dust collector

Abstract

The utility model relates to the technical field of bag-type dust removers, in particular to an on-line detection device for a compressed air injection control valve of a bag-type dust remover, which comprises a plurality of air blowing pipes, a plurality of branch pipe control valves mounted at the tops of the air blowing pipes, a plurality of branch pipes mounted at the bottoms of the air blowing pipes, and a plurality of branch pipe control valves used for controlling opening and closing of internal channels of the branch pipes. The bottom end of the branch pipe is connected into an internal cloth bag of the bag-type dust collector, a fixing plate is installed on one side of the interior of the branch pipe, a valve plate is rotationally connected to one side of the fixing plate, a torsion spring is installed on the outer wall of the joint of the valve plate and the fixing plate, and the torsion spring drives the valve plate to keep horizontal sealing, and a contact sensor is installed at the end, close to the valve plate, of the inner wall of the branch pipe; the contact sensor is electrically connected with an alarm through a wire. According to the online detection device for the compressed air injection control valve of the bag-type dust collector, the rotatable valve plate and the contact sensor are arranged in the branch pipe, so that the device can accurately sense the position state of the valve plate and judge whether the control valve works normally or not.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust collectors, in particular to an online detection device for a compressed air injection control valve of a bag dust collector. Background Art

[0002] As a common air purification equipment, bag dust collector is widely used in various industrial production environments to remove dust and particulate matter generated during the production process to maintain the air quality of the production environment and protect the health of workers. During the operation of the bag dust collector, the compressed air injection control valve plays a vital role. It controls the injection of compressed air to remove dust accumulated on the bag and ensure its continuous and effective operation.

[0003] However, in the traditional bag filter system, there is a lack of effective online detection means for the working status of the compressed air injection control valve. Once the control valve fails, the dust removal efficiency of the bag filter may decrease or even fail completely, thus affecting the air quality of the entire production environment. In addition, timely detection and repair of faults has also become a problem due to the lack of real-time fault detection and alarm systems. Utility Model Content

[0004] The purpose of the utility model is to provide an online detection device for a compressed air injection control valve of a bag dust collector, so as to solve the problem raised in the above background technology that in a traditional bag dust collector system, there is a lack of effective online detection means for the working state of the compressed air injection control valve.

[0005] To achieve the above-mentioned purpose, the utility model provides an online detection device for a compressed air blowing control valve of a bag dust collector, comprising a plurality of blowing pipes, a plurality of branch control valves are installed on the top of the blowing pipes, a plurality of branch pipes are installed on the bottom of the blowing pipes, the branch control valves are used to control the opening and closing of internal channels of the branch pipes, the bottom ends of the branch pipes are connected to the internal bags of the bag dust collector, a fixed plate is installed on one side of the interior of the branch pipes, a valve plate is rotatably connected to one side of the fixed plate, a torsion spring is installed on the outer wall of the connection between the valve plate and the fixed plate, the torsion spring drives the valve plate to maintain horizontal closure, a contact sensor is installed on the inner wall of the branch pipe near one end of the valve plate, and the contact sensor is electrically connected to an alarm through a wire.

[0006] Preferably, the air blowing pipes are arranged in parallel with equal intervals, the branch pipes on each of the air blowing pipes are arranged with equal intervals, one end of the air blowing pipes is vertically connected to an air inlet pipe, and the top of the air inlet pipe is connected to an air inlet joint.

[0007] Preferably, the contact sensor is connected to the control system of the bag dust collector through a line. When compressed air passes through the branch pipe, the valve plate flips downward and separates from the contact sensor. The contact sensor transmits data to the control system, and the control system controls the alarm to generate an alarm operation.

[0008] Preferably, a groove is provided on one side of the inner wall of the branch pipe, one end of the valve plate is stuck in the groove, the top of the groove is a horizontal plane for installing a contact sensor, and the lower part is an arc structure to facilitate one end of the valve plate to slide in.

[0009] Preferably, a sealing strip is installed at the outer end of the valve plate, and the outer wall of the sealing strip is an arc-shaped structure, the shape of which is matched with the lower inner wall of the groove.

[0010] Preferably, the valve plate and the fixed plate are rotatably connected via a hinge.

[0011] Preferably, an infrared sensor is installed on the inner wall of the lower side of the branch pipe. When the valve plate is flipped downward to a vertical state, the infrared sensor detects a position signal and transmits it to the control system.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the online detection device of the compressed air injection control valve of the bag filter, by setting a rotatable valve plate and a contact sensor inside the branch pipe, the device can accurately sense the position of the valve plate, so as to determine whether the control valve is working normally. When the control valve fails, such as blockage or leakage, the position of the valve plate will change, and the contact sensor will immediately capture this change and trigger the alarm through the control system to alert the operator to carry out maintenance in time. The infrared sensor in the device further enhances the accuracy and timeliness of fault detection. When the valve plate flips to a specific position, the infrared sensor can quickly detect and transmit the signal to the control system to ensure that any abnormal situation can be discovered and handled in time. The design of the online detection device also takes into account ease of use and maintainability. The layout of each component is reasonable, which is easy to install and disassemble. At the same time, the connection between the sensor and the control system is simple and reliable, which greatly reduces the difficulty of maintenance and overhaul. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the top view of the valve plate in the utility model.

[0017] The meaning of each number in the figure is:

[0018] 1. Blowing pipe; 2. Branch control valve; 3. Branch; 31. Valve plate; 311. Sealing strip; 32. Fixing plate; 321. Torsion spring; 322. Hinge; 33. Groove; 34. Contact sensor; 35. Alarm; 36. Infrared sensor; 4. Bag filter; 5. Intake pipe; 51. Intake joint. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides an online detection device for a compressed air injection control valve of a bag dust collector, such as Figure 1-Figure 3As shown, it includes several air blowing pipes 1, several branch control valves 2 are installed on the top of the air blowing pipe 1, and several branch pipes 3 are installed on the bottom of the air blowing pipe 1. The branch control valve 2 is used to control the opening and closing of the internal channel of the branch 3. The bottom end of the branch 3 is connected to the internal bag of the bag dust collector 4. A fixed plate 32 is installed on one side of the inside of the branch 3. A valve plate 31 is rotatably connected to one side of the fixed plate 32. A torsion spring 321 is installed on the outer wall of the connection between the valve plate 31 and the fixed plate 32. The torsion spring 321 drives the valve plate 31 to maintain horizontal closure. A contact sensor 34 is installed on the inner wall of the branch 3 near one end of the valve plate 31. The contact sensor 34 is electrically connected to an alarm 35 through a wire. The device includes multiple air blowing pipes 1. At the top of each air blowing pipe 1, several branch control valves 2 are installed, and these control valves are responsible for accurately regulating the flow of compressed air. At the bottom of the air blowing pipe 1, several branch pipes 3 are connected, which are the channels for compressed air to enter the bags inside the bag dust collector 4. In order to achieve fine control of the compressed air blowing, a sophisticated mechanism is designed inside each branch pipe 3. On the inner wall of one side of the branch pipe 3, a fixed plate 32 is fixedly installed. On one side of this fixed plate 32, a valve plate 31 is installed by a rotation connection. This valve plate 31 can maintain a horizontal closed state under the action of the torsion spring 321, thereby ensuring that the branch pipe 3 is in a closed state when blowing is not required. In order to realize the online detection function, a contact sensor 34 is installed on the inner wall of the branch pipe 3, near one end of the valve plate 31. This sensor can detect the position state of the valve plate 31 in real time. When the valve plate 31 changes position due to some reasons (such as blockage, leakage or control valve failure), the contact sensor 34 will immediately capture this change. In order to promptly remind the operator to pay attention to abnormal conditions, the contact sensor 34 is electrically connected to the alarm 35 through a wire. Once the contact sensor 34 detects that the position of the valve plate 31 is abnormal, the alarm 35 will be triggered immediately to sound an alarm, thereby ensuring that any potential problems can be discovered and handled in a timely manner.

[0021] In this embodiment, the blowing pipes 1 are arranged in parallel with equal intervals, the branch pipes 3 on each blowing pipe 1 are arranged with equal intervals, one end of the blowing pipes 1 is vertically connected to the air inlet pipe 5, and the top of the air inlet pipe 5 is connected to the air inlet joint 51 to facilitate the introduction of compressed gas.

[0022] Specifically, the contact sensor 34 is connected to the control system of the bag filter 4 through a line. When compressed air passes through the branch pipe 3, the valve plate 31 flips downward and separates from the contact sensor 34. The contact sensor 34 transmits data to the control system, and the control system controls the alarm 35 to generate an alarm operation.

[0023] Furthermore, a groove 33 is provided on one side of the inner wall of the branch pipe 3, and one end of the valve plate 31 is stuck in the groove 33. The top of the groove 33 is a horizontal plane for installing a contact sensor, and the lower part is an arc-shaped structure, which facilitates one end of the valve plate 31 to slide in and ensure the sealing of the valve plate 31 when it is closed.

[0024] Furthermore, a sealing strip 311 is installed at the outer end of the valve plate 31 , and the outer wall of the sealing strip 311 is an arc-shaped structure, and the shape is adapted to the lower inner wall of the groove 33 , so as to further improve the sealing effect.

[0025] Furthermore, the valve plate 31 and the fixed plate 32 are rotatably connected via a hinge 322 , so that the valve plate 31 can be easily rotated.

[0026] Furthermore, an infrared sensor 36 is installed on the inner wall of the lower side of the branch pipe 3. When the valve plate 31 is flipped downward to a vertical state, the infrared sensor 36 detects a position signal and transmits it to the control system, thereby realizing the monitoring of the compressed gas.

[0027] When the online detection device of the compressed air blowing control valve of the bag dust collector of the utility model is used, the compressed air is first introduced into the system through the air inlet pipe 5 and the air inlet joint 51, and then distributed to each blowing pipe 1. A branch control valve 2 is installed on the top of each blowing pipe 1, and these valves are responsible for regulating the flow of compressed air entering the respective branch pipes 3.

[0028] Under normal conditions, the valve plate 31 inside the branch pipe 3 is kept horizontally closed under the action of the torsion spring 321 to ensure that there is no leakage of compressed air. At this time, the contact sensor 34 is kept in contact with the valve plate 31, indicating that the valve is in a closed state.

[0029] When the bag filter 4 needs to perform a spraying operation, the corresponding branch control valve 2 will open, and the compressed air will then enter the branch pipe 3. Under the action of the compressed air, the valve plate 31 will flip downward and separate from the contact sensor 34. This change is captured by the contact sensor 34 in real time, and the signal is transmitted to the control system of the bag filter 4.

[0030] After receiving the signal, the control system will determine whether the signal means an abnormal situation (such as valve blockage, leakage or control valve failure). If it is an abnormal situation, the control system will immediately trigger the alarm 35 to sound an alarm, reminding the operator to pay attention and deal with it in time.

[0031] In addition, an infrared sensor 36 is also provided on the inner wall of the branch pipe 3 to further monitor the position state of the valve plate 31. When the valve plate 31 is flipped downward to a vertical state, the infrared sensor 36 detects the position signal and transmits it to the control system. In this way, the control system can more comprehensively understand the working state of each branch pipe 3 and ensure the normal operation of the bag filter.

[0032] Finally, it should be noted that the alarm 35, infrared sensor 36, etc. in this embodiment, the electronic components in the above parts are all universal standard parts or parts known to technical personnel in this field, and their structures and principles can be known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires respectively. The specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the field.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An online detection device for a compressed air blowing control valve of a bag filter, comprising a plurality of blowing pipes (1), characterized in that: A plurality of branch control valves (2) are installed at the top of the air blowing pipe (1), and a plurality of branch pipes (3) are installed at the bottom of the air blowing pipe (1). The branch control valves (2) are used to control the opening and closing of the internal channels of the branch pipes (3). The bottom ends of the branch pipes (3) are connected to the internal bags of the bag dust collector (4). A fixing plate (32) is installed at one side of the inside of the branch pipe (3), and a valve plate (31) is rotatably connected to one side of the fixing plate (32). A torsion spring (321) is installed at the outer wall of the connection between the valve plate (31) and the fixing plate (32). The torsion spring (321) drives the valve plate (31) to maintain horizontal closure. A contact sensor (34) is installed at one end of the inner wall of the branch pipe (3) close to the valve plate (31), and the contact sensor (34) is electrically connected to an alarm (35) through a wire.

2. The online detection device for the compressed air injection control valve of the bag filter according to claim 1 is characterized in that: The air blowing pipes (1) are arranged in parallel at equal intervals, and the branch pipes (3) on each of the air blowing pipes (1) are arranged at equal intervals. One end of the air blowing pipes (1) is vertically connected to an air intake pipe (5), and the top of the air intake pipe (5) is connected to an air intake joint (51).

3. The online detection device for the compressed air injection control valve of the bag filter according to claim 1 is characterized in that: The contact sensor (34) is connected to the control system of the bag filter (4) through a line. When compressed air passes through the branch pipe (3), the valve plate (31) flips downward and separates from the contact sensor (34). The contact sensor (34) transmits data to the control system, and the control system controls the alarm (35) to generate an alarm operation.

4. The online detection device for the compressed air injection control valve of the bag filter according to claim 1 is characterized in that: A groove (33) is provided on one side of the inner wall of the branch pipe (3), and one end of the valve plate (31) is stuck in the groove (33). The top of the groove (33) is a horizontal surface for installing a contact sensor, and the lower part is an arc-shaped structure to facilitate one end of the valve plate (31) to slide in.

5. The online detection device for the compressed air injection control valve of the bag filter according to claim 1 is characterized in that: A sealing strip (311) is installed at the outer end of the valve plate (31), and the outer wall of the sealing strip (311) is an arc-shaped structure, the shape of which is matched with the lower inner wall of the groove (33).

6. The online detection device for the compressed air injection control valve of the bag filter according to claim 1 is characterized in that: The valve plate (31) and the fixed plate (32) are rotatably connected via a hinge (322).

7. The online detection device for the compressed air injection control valve of the bag filter according to claim 1 is characterized in that: An infrared sensor (36) is installed on the inner wall of one side of the lower part of the branch pipe (3). When the valve plate (31) is turned downward to a vertical state, the infrared sensor (36) detects a position signal and transmits it to the control system.

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