Electromagnetic pulse valve with self-monitoring function

Abstract

The utility model provides an electromagnetic pulse valve with a self-monitoring function, which belongs to the technical field of electromagnetic pulse valves and comprises an electromagnetic pulse valve body, a hollow air chamber is arranged inside the electromagnetic pulse valve body, a compressed air inlet and a blowing port which are communicated with the air chamber are arranged on the outer side of the electromagnetic pulse valve body, and a diaphragm for connecting and disconnecting the compressed air inlet and the blowing port is arranged above the blowing port. A membrane opening degree detection assembly is arranged on the top wall of the air chamber, a membrane air leakage detection assembly is arranged on the side wall of the blowing opening, a monitoring box is arranged on the top of the electromagnetic pulse valve body, and a PLC, a data storage unit and a warning lamp are arranged in the monitoring box. The diaphragm opening degree detection assembly, the diaphragm air leakage detection assembly, the data storage unit and the warning lamp are electrically connected with the PLC, and the problems that due to the fact that an existing electromagnetic pulse valve cannot achieve monitoring of the diaphragm damage state and traceability of fault reasons, maintenance response lags behind, and the continuous stability of a dust removal system is poor are solved.

Description

An electromagnetic pulse valve with self-monitoring function Technical Field

[0001] This utility model relates to the field of electromagnetic pulse valve technology, and more specifically, to an electromagnetic pulse valve with self-monitoring function. Background Technology

[0002] In baghouse dust collection systems, the electromagnetic pulse valve, as the core actuator for compressed gas pulse cleaning, rapidly opens and closes the air passage by receiving electrical signals, driving a burst of high-pressure airflow to remove dust accumulation from the filter bags. This plays a crucial role in maintaining stable operating resistance of the dust collector. Its compact size, rapid response, and low energy consumption have led to its widespread application in industries such as steel metallurgy, cement building materials, and waste incineration, making it a core component ensuring the efficient operation of dust collection systems.

[0003] During operation, the internal diaphragm of an electromagnetic pulse valve, acting as an elastic sealing element controlling airflow, must withstand high-frequency mechanical deformation and air pressure impacts. After prolonged operation, the diaphragm is prone to damage such as fatigue, media corrosion, or perforation. These failures directly lead to airtightness failure, triggering a chain reaction of problems including insufficient cleaning pressure and abnormal pulse volume. However, current technologies can only detect faults indirectly through system pressure fluctuations or decreased dust removal efficiency, failing to monitor diaphragm damage and trace the root cause of the fault. This results in delayed maintenance response, frequent downtime for repairs, and hinders the continuous and stable operation of the dust removal system. Summary of the Invention

[0004] To overcome the above deficiencies, this utility model provides an electromagnetic pulse valve with self-monitoring function to solve the aforementioned problems.

[0005] This utility model is implemented as follows:

[0006] An electromagnetic pulse valve with self-monitoring function includes an electromagnetic pulse valve body with a hollow air chamber inside. A compressed air inlet and a nozzle communicating with the air chamber are provided on the outer side of the electromagnetic pulse valve body. A diaphragm for switching the two air chambers on and off is provided above the nozzle. A diaphragm opening / closing degree detection component is provided on the top wall of the air chamber, and a diaphragm leakage detection component is provided on the side wall of the nozzle. A monitoring box is provided on the top of the electromagnetic pulse valve body. The monitoring box contains a PLC controller, a data storage unit, and a warning light. The diaphragm opening / closing degree detection component, the diaphragm leakage detection component, the data storage unit, and the warning light are all electrically connected to the PLC controller.

[0007] Furthermore, the number of the membrane opening degree detection components is at least three, and they are arranged in a circularly equally divided row. When the membrane moves upward to fit against it, any one of the membrane opening degree detection components is located at the top edge of the membrane.

[0008] Furthermore, the diaphragm opening / closing degree detection assembly includes a base plate disposed on the top wall of the air chamber, a squeezing plate disposed below the base plate, a guide rod disposed at the top edge of the squeezing plate, the guide rod penetrating the base plate to the interior of the top wall of the air chamber, and a guide cavity for accommodating the movement of the guide rod being opened inside the interior, a nut disposed at the top end of the guide rod, and a first spring electrode switch disposed between the base plate and the squeezing plate.

[0009] Furthermore, the first spring electrode switch includes a first electrode disposed at the bottom center of the base plate and a second electrode disposed at the top center of the extrusion plate. A first abutting spring is disposed between the first electrode and the second electrode. When the diaphragm is fully opened, the diaphragm abuts against the extrusion plate, and the first electrode contacts the second electrode.

[0010] Furthermore, the first spring electrode switch is electrically connected to the PLC controller, and several of the first spring electrode switches are connected in parallel.

[0011] Furthermore, the diaphragm leakage detection assembly includes a flow switch, a mounting slide is provided on one side of the flow switch, a movable side groove is provided on the side wall of the nozzle, a connecting rod is vertically arranged inside the movable side groove, the mounting slide is movably mounted on the connecting rod, and a second spring electrode switch is provided between the mounting slide and the connecting rod.

[0012] Furthermore, the mounting carriage includes a mounting plate, one side of which is provided with two side carriages, namely an upper side carriage and a lower side carriage, both of which are slidably mounted on the connecting rod. The other side is fixedly connected to the flow switch. The second spring electrode switch includes a second abutting spring provided between the bottom of the movable side groove and the lower side carriage. A third electrode is provided on the top wall of the movable side groove, and a fourth electrode is provided on the top of the lower side carriage.

[0013] Furthermore, when the flow switch is not subjected to external force, the third electrode and the fourth electrode come into contact.

[0014] Furthermore, the second spring electrode switch is connected in series with the flow switch on the PLC controller.

[0015] Furthermore, a rubber pad is provided between the third electrode and the top wall of the movable side groove, and the same rubber pad is provided between the fourth electrode and the upper side slide.

[0016] The beneficial effects of this utility model are as follows: Fault information recording is achieved through integrated dual detection. The diaphragm opening / closing detection component uses a ring array of first spring electrode switches. When the diaphragm is fully open, the edge of the diaphragm simultaneously presses multiple extrusion plates, causing the corresponding first electrode to contact and conduct with the second electrode. The PLC controller records the on / off status of each channel and stores it in the data storage unit. The diaphragm leakage detection component uses a linkage design between the flow switch and the electrode switch. When the diaphragm is normally closed, the second contact spring pushes the lower slide to make the third electrode contact with the fourth electrode to form a closed loop. At this time, the flow switch is in standby mode. When the diaphragm is damaged and leaking air or is not fully closed, the negative pressure generated by the compressed air leakage causes the flow switch to conduct, thereby recording the flow rate at this time. These two types of data are stored in the data storage unit for easy access by subsequent inspection personnel to view specific fault logs. Correspondingly, a warning light is activated based on a set threshold, allowing inspection personnel to determine whether maintenance is needed based on the on / off status of the warning light, saving manpower. This monitoring method breaks through the traditional indirect judgment mode, and achieves rapid fault response by directly detecting the diaphragm displacement and airtightness parameters; the multi-point array detection mechanism can accurately locate the damaged area at the edge of the diaphragm, and combined with the fault log recording function of the data storage unit, it provides a quantitative basis for maintenance decisions. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 is a structural schematic diagram of an electromagnetic pulse valve with self-monitoring function provided by an embodiment of the present invention;

[0019] Figure 2 is a partial cross-sectional view of an electromagnetic pulse valve with self-monitoring function provided by an embodiment of the present invention;

[0020] Figure 3 is an enlarged view of point A in Figure 2;

[0021] Figure 4 is an enlarged view of point B in Figure 2;

[0022] Figure 5 is a communication block diagram provided by an embodiment of this utility model.

[0023] In the diagram: 10. Electromagnetic pulse valve body; 11. Compressed air inlet; 12. Spray nozzle; 13. Diaphragm; 20. Diaphragm opening / closing degree detection assembly; 21. Base plate; 22. Extrusion plate; 23. Guide rod; 24. Guide cavity; 25. First spring electrode switch; 2501. First electrode; 2502. Second electrode; 2503. First contact spring; 30. Diaphragm leakage detection assembly; 31. Movable side groove; 32. Connecting rod; 33. Flow switch; 34. Mounting slide; 3401. Mounting plate; 3402. Side slide; 35. Second spring electrode switch; 3501. Second contact spring; 3502. Third electrode; 3503. Fourth electrode; 40. Monitoring box; 41. PLC controller; 42. Data storage unit; 43. Warning light. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] As shown in Figures 1-2, this utility model provides an electromagnetic pulse valve with self-monitoring function, including an electromagnetic pulse valve body 10, the inside of which is a hollow air chamber. The outer side of the electromagnetic pulse valve body 10 is provided with a compressed air inlet 11 and a blow-out port 12 communicating with the air chamber. A diaphragm 13 for switching the two on and off is provided above the blow-out port 12. A diaphragm opening degree detection component 20 is provided on the top wall of the air chamber, and a diaphragm leakage detection component 30 is provided on the side wall of the blow-out port 12. A monitoring box 40 is provided on the top of the electromagnetic pulse valve body 10. The monitoring box 40 is provided with a PLC controller 41, a data storage unit 42 and a warning light 43. The diaphragm opening degree detection component 20, the diaphragm leakage detection component 30, the data storage unit 42 and the warning light 43 are electrically connected to the PLC controller 41.

[0027] As shown in Figure 2-3, there are at least three diaphragm opening degree detection components 20, which are arranged in a circularly divided row. When the diaphragm 13 moves upward to fit against it, any diaphragm opening degree detection component 20 is located at the top edge of the diaphragm 13. By using multiple diaphragm opening degree detection components 20, it is possible to record whether each edge of the diaphragm 13 is fully opened. The fact that there are more than three of them and they are arranged in a circularly divided row can avoid missing any blind spots.

[0028] In this embodiment, the diaphragm opening and closing degree detection component 20 includes a base plate 21 disposed on the top wall of the air chamber, a pressing plate 22 disposed below the base plate 21, a guide rod 23 disposed at the top edge of the pressing plate 22, the guide rod 23 penetrating the base plate 21 to the interior of the top wall of the air chamber, and a guide cavity 24 for accommodating the movement of the guide rod 23 is provided inside the cavity, a nut is disposed at the top end of the guide rod 23, and a first spring electrode switch 25 is disposed between the base plate 21 and the pressing plate 22.

[0029] Furthermore, the first spring electrode switch 25 includes a first electrode 2501 disposed at the bottom center of the base plate 21 and a second electrode 2502 disposed at the top center of the extrusion plate 22. A first abutting spring 2503 is disposed between the first electrode 2501 and the second electrode 2502. When the diaphragm 13 is fully opened, the diaphragm 13 abuts against the extrusion plate 22, and the first electrode 2501 contacts the second electrode 2502.

[0030] It should be noted that the first contact spring 2503 should be a spring with low elasticity. Its main function is to ensure the rapid reset of the first spring electrode switch 25, that is, the state in which the first electrode 2501 and the second electrode 2502 are separated. Therefore, its elasticity should minimize the resistance to the opening of the diaphragm 13 after meeting the requirement of rapid reset.

[0031] In this embodiment, the first spring electrode switch 25 is electrically connected to the PLC controller 41, and several first spring electrode switches 25 are connected in parallel. It should be noted that the PLC controller 41 is a PLC module with data recording function, that is, the on / off data of any first spring electrode switch 25 in the same interval is recorded and stored in the data storage unit 42, so that the inspection personnel can view the specific error logs later.

[0032] As shown in Figure 4, the diaphragm leakage detection assembly 30 includes a flow switch 33. A mounting slide 34 is provided on one side of the flow switch 33. A movable side groove 31 is provided on the side wall of the blow nozzle 12. A connecting rod 32 is vertically arranged inside the movable side groove 31. The mounting slide 34 is movably mounted on the connecting rod 32. A second spring electrode switch 35 is provided between the mounting slide 34 and the connecting rod 32.

[0033] Furthermore, the mounting slide 34 includes a mounting plate 3401. Two side slides 3402 are provided on one side of the mounting plate 3401, namely an upper side slide 3402 and a lower side slide 3402, both of which are slidably mounted on the connecting rod 32. The other side is fixedly connected to the flow switch 33. The second spring electrode switch 35 includes a second abutting spring 3501 provided between the bottom of the movable side groove 31 and the lower side slide 3402. A third electrode 36 is provided on the top wall of the movable side groove 31, and a fourth electrode 37 is provided on the top of the lower side slide 3402.

[0034] It should be noted that when the flow switch 33 is not subjected to external force, the third electrode 36 and the fourth electrode 37 are in contact. However, when the diaphragm 13 is in a half-open or fully open state, the flow switch 33 moves downward under the action of compressed air, causing the third electrode 36 and the fourth electrode 37 to separate and disconnect. At this time, the flow switch 33 is in an open circuit state. Only when the diaphragm 13 is closed or in a faulty leaking state can the second contact spring 3501 make the third electrode 36 and the fourth electrode 37 contact.

[0035] Furthermore, the second spring electrode switch 35 and the flow switch 33 are connected in series on the PLC controller 41. When the diaphragm 13 is in the closed state or in the fault leakage state, the third electrode 36 and the fourth electrode 37 in the second spring electrode switch 35 are in the closed state, and the flow switch 33 is in the on state. The PLC controller 41 receives the flow data of the nozzle 12 in real time and stores it in the data storage unit 42.

[0036] Correspondingly, the warning rule for the warning light 43 is that either of the following two conditions must be met: First, when the diaphragm 13 is in the closed state or in a faulty leaking state, the flow switch 33 detects that the flow rate has reached the minimum threshold, and the PLC controller 41 controls the warning light 43 to light up; Second, if there are N first spring electrode switches 25, the warning light 43 will light up if there is one or more but less than N, and the warning light 43 can only be turned off after the inspection personnel read and reset the data.

[0037] In a preferred embodiment, a rubber pad is provided between the third electrode 36 and the top wall of the movable side groove 31, and the same rubber pad is provided between the fourth electrode 37 and the upper slide 3402. During the switching process of the diaphragm 13, the fourth electrode 37 is subjected to the elastic force of the second abutment spring 3501 and impacts the third electrode 36. Prolonged impact can easily cause the two electrodes to loosen, and at the same time, it will also have a cascading effect on the flow switch 33. The rubber pad is provided to reduce this impact.

[0038] It should be noted that the specific models and specifications of the flow switch 33, PLC controller 41, data storage unit 42 and warning light 43 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0039] The power supply and operating principle of the flow switch 33, PLC controller 41, data storage unit 42 and warning light 43 are clear to those skilled in the art and will not be described in detail here.

[0040] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. An electromagnetic pulse valve with self-monitoring function, comprising an electromagnetic pulse valve body (10) having a hollow air chamber inside, wherein a compressed air inlet (11) and a blow-off port (12) communicating with the air chamber are provided on the outside of the electromagnetic pulse valve body (10), and a diaphragm (13) for switching the two on and off is provided above the blow-off port (12), characterized in that, A diaphragm opening degree detection component (20) is provided on the top wall of the air chamber, a diaphragm leakage detection component (30) is provided on the side wall of the blow nozzle (12), a monitoring box (40) is provided on the top of the electromagnetic pulse valve body (10), and a PLC controller (41), a data storage unit (42) and a warning light (43) are provided inside the monitoring box (40). The diaphragm opening degree detection component (20), the diaphragm leakage detection component (30), the data storage unit (42) and the warning light (43) are electrically connected to the PLC controller (41) respectively.

2. The electromagnetic pulse valve with self-monitoring function according to claim 1, characterized in that, The number of the membrane opening degree detection components (20) is at least three, and they are arranged in a circularly divided row. When the membrane (13) moves upward to fit against it, any of the membrane opening degree detection components (20) is located at the top edge of the membrane (13).

3. The electromagnetic pulse valve with self-monitoring function according to claim 2, characterized in that, The diaphragm opening and closing degree detection component (20) includes a base plate (21) disposed on the top wall of the air chamber, a squeezing plate (22) disposed below the base plate (21), a guide rod (23) disposed at the top edge of the squeezing plate (22), the guide rod (23) penetrating the base plate (21) to the interior of the top wall of the air chamber, and a guide cavity (24) is provided inside to accommodate the movement of the guide rod (23), a nut is disposed at the top end of the guide rod (23), and a first spring electrode switch (25) is disposed between the base plate (21) and the squeezing plate (22).

4. The electromagnetic pulse valve with self-monitoring function according to claim 3, characterized in that, The first spring electrode switch (25) includes a first electrode (2501) disposed at the bottom center of the base plate (21) and a second electrode (2502) disposed at the top center of the extrusion plate (22). A first abutting spring (2503) is disposed between the first electrode (2501) and the second electrode (2502). When the diaphragm (13) is fully opened, the diaphragm (13) abuts against the extrusion plate (22), and the first electrode (2501) contacts the second electrode (2502).

5. An electromagnetic pulse valve with self-monitoring function according to claim 3 or 4, characterized in that, The first spring electrode switch (25) is electrically connected to the PLC controller (41), and the first spring electrode switches (25) are connected in parallel.

6. The electromagnetic pulse valve with self-monitoring function according to claim 1, characterized in that, The diaphragm leakage detection assembly (30) includes a flow switch (33), a mounting slide (34) is provided on one side of the flow switch (33), a movable side groove (31) is provided on the side wall of the blow nozzle (12), a connecting rod (32) is provided vertically inside the movable side groove (31), the mounting slide (34) is movably mounted on the connecting rod (32), and a second spring electrode switch (35) is provided between the mounting slide (34) and the connecting rod (32).

7. An electromagnetic pulse valve with self-monitoring function according to claim 6, characterized in that, The mounting slide (34) includes a mounting plate (3401). Two side slides (3402) are provided on one side of the mounting plate (3401), which are divided into an upper side slide (3402) and a lower side slide (3402). Both slide on the connecting rod (32). The other side is fixedly connected to the flow switch (33). The second spring electrode switch (35) includes a second abutment spring (3501) provided between the bottom of the movable side groove (31) and the lower side slide (3402). A third electrode (36) is provided on the top wall of the movable side groove (31), and a fourth electrode (37) is provided on the top of the lower side slide (3402).

8. An electromagnetic pulse valve with self-monitoring function according to claim 7, characterized in that, When the flow switch (33) is not subjected to external force, the third electrode (36) and the fourth electrode (37) come into contact.

9. An electromagnetic pulse valve with self-monitoring function according to claim 8, characterized in that, The second spring electrode switch (35) and the flow switch (33) are connected in series on the PLC controller (41).

10. An electromagnetic pulse valve with self-monitoring function according to any one of claims 7-9, characterized in that, A rubber pad is provided between the third electrode (36) and the top wall of the movable side groove (31), and the same rubber pad is provided between the fourth electrode (37) and the upper side slide (3402).

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