Mounting device for gate position sensor of discharge gate valve of pressure filter

Abstract

The utility model relates to the technical field of pressure filters, in particular to a mounting device for a gate position sensor of a discharge gate valve of a pressure filter, which comprises a gate position sensor, and the upper end of the gate position sensor is screwed in the lower end of a first connecting cylinder. A sensor locking nut used for abutting against the lower end of the first connecting cylinder is screwed on the gate plate position sensor. The upper end of the first connecting cylinder is screwed in the lower end of the second connecting cylinder, and a first connecting cylinder locking nut used for abutting against the lower end of the second connecting cylinder is screwed on the first connecting cylinder; the second connecting cylinder is screwed on the connecting flange, the second connecting cylinder vertically penetrates through the connecting flange, and a second connecting cylinder locking nut used for abutting against one side of the connecting flange is screwed on the second connecting cylinder; the locking nut of the second connecting cylinder is loosened, the second connecting cylinder is screwed to rotate relative to the connecting flange, and then the flashboard position sensor is driven to move up and down, so that the gap between the flashboard position sensor and the flashboard is conveniently adjusted.

Description

Technical Field

[0001] This utility model relates to the field of pressure filter technology, specifically to a pressure filter discharge gate valve gate position sensor installation device. Background Technology

[0002] Disc pressure filters are a new type of high-efficiency, energy-saving, and fully automatic liquid-solid separation equipment widely used in process industries. The filter cake separated after pressure filtration is conveyed to the discharge device by a scraper conveyor. Discharge is achieved by intermittently opening the discharge gate valve based on selected time or material level. Figure 1 An installation device for the gate position sensor of an existing gate valve is provided: a threaded tube 13 with internal threads at both ends is welded onto a flange 15. The lower end of the threaded tube 13 is connected to the gate position sensor 1 by thread and locked with a sensor locking nut 2. A square hole 14 is opened at an appropriate position at the lower end of the threaded tube 13 to observe the working status indicator light of the gate position sensor 1. The sensor cable 10 is led out through a sealing joint 16 connected to the upper end of the threaded tube 13.

[0003] In existing technologies, gate position sensors are easily encapsulated by sticky, fine materials, causing unstable signals received by the control system or discrepancies between the position signal and the actual gate position. This results in the control program failing to operate or malfunctioning, requiring the entire sensor mounting device to be disassembled for cleaning. Furthermore, the gap between the gate position sensor and the gate is very small, and this gap changes during actual gate operation. When the gap widens, the signal received by the control system becomes unstable or is not received at all. This necessitates disassembling the entire sensor mounting device and then unscrewing the gate position sensor from its internal threaded tube to increase its length and reduce the gap with the gate. This process requires repeated adjustments multiple times. When the gap between the gate and the gate position sensor becomes smaller due to material accumulation or other reasons, the roller under the gate will scratch or directly cut and damage the gate position sensor. If the gate position sensor is deformed and damaged, it is difficult to remove the metal housing of the sensor connected in the internal threaded tube without damaging the internal thread of the internal threaded tube. If the internal thread of the internal threaded tube is damaged, the new gate position sensor cannot be installed normally. It is necessary to clean the internal thread of the internal threaded tube again, or cut off the damaged end of the internal threaded tube and re-machine a section of tube with internal thread and weld it on.

[0004] The existing gate valve position sensor installation device requires removing the bolts on the flange to take out the gate position sensor, which makes the disassembly, installation, inspection and maintenance of the gate position sensor time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of this utility model is to provide a gate position sensor installation device for a pressure filter discharge gate valve, which facilitates the adjustment of the gate position sensor's installation position and makes disassembly and assembly convenient, thereby solving the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gate position sensor mounting device for a pressure filter discharge gate valve includes a gate position sensor. The upper end of the gate position sensor is screwed into the lower end of a first connecting cylinder, and a sensor locking nut for pressing against the lower end of the first connecting cylinder is screwed onto the gate position sensor. The upper end of the first connecting cylinder is screwed into the lower end of a second connecting cylinder, and a first connecting cylinder locking nut for pressing against the lower end of the second connecting cylinder is screwed onto the first connecting cylinder. The second connecting cylinder is screwed onto a connecting flange, and the second connecting cylinder vertically penetrates the connecting flange. A second connecting cylinder locking nut for pressing against one side of the connecting flange is screwed onto the second connecting cylinder.

[0008] As a further improvement, the second connecting sleeve locking nut is used to abut against the upper side of the connecting flange.

[0009] As a further improvement, the upper outer side of the second connecting cylinder is provided with an external thread section, which is screwed onto the connecting flange; the lower outer diameter of the second connecting cylinder, the outer circle diameter of the locking nut of the first connecting cylinder, the outer diameter of the first connecting cylinder, the outer circle diameter of the locking nut of the sensor, and the outer diameter of the gate position sensor are all smaller than the outer diameter of the external thread section.

[0010] As a further improvement, a sealing assembly is screwed into the upper end of the second connecting cylinder.

[0011] As a further improvement, the upper end of the gate position sensor is connected to a sensor cable, which extends upward through the sealing assembly and is connected to a light-emitting diode assembly for indicating the working status of the gate position sensor.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Loosen the locking nut of the second connecting cylinder, use a wrench to hold the square head at the upper end of the second connecting cylinder and turn the second connecting cylinder relative to the connecting flange to rotate, thereby driving the second connecting cylinder, the first connecting cylinder and the gate position sensor to move up and down, so as to facilitate the adjustment of the gap between the gate position sensor and the gate.

[0014] 2. Loosen the locking nut of the second connecting cylinder, use a wrench to rotate the second connecting cylinder relative to the connecting flange, and unscrew the second connecting cylinder from the connecting flange. This allows you to easily remove the gate position sensor, the first connecting cylinder, and the second connecting cylinder from the filter hopper without disassembling the connecting flange, making it quick and convenient to replace the gate position sensor.

[0015] 3. Loosen the locking nut of the first connecting cylinder, and the damaged first connecting cylinder can be unscrewed from the lower end of the second connecting cylinder. Then, the machined first connecting cylinder can be re-threaded to the lower end of the second connecting cylinder without welding, making the replacement of the first connecting cylinder more convenient.

[0016] 4. The LED assembly is located on the outside of the sealing assembly, which makes it easier for staff to observe the working status of the gate position sensor more intuitively. Furthermore, by eliminating the square hole, the sealing assembly can use a general waterproof cable connector, which facilitates sealing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the existing gate valve gate position sensor mounting device;

[0019] Figure 2 This is a structural schematic diagram of an embodiment of the present utility model.

[0020] In the diagram: 1-Gate position sensor; 2-Sensor locking nut; 3-First connecting cylinder; 4-First connecting cylinder locking nut; 5-Second connecting cylinder; 6-Connecting flange; 7-Second connecting cylinder locking nut; 8-Sealing assembly; 9-Light emitting diode assembly; 10-Sensor cable; 11-External thread section; 12-Threaded hole; 13-Threaded pipe; 14-Square hole; 15-Flange; 16-Sealing joint. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 2 As shown, a gate position sensor mounting device for a pressure filter discharge gate valve includes a cylindrical gate position sensor 1. The gate position sensor 1 has an external thread on its outer side. The upper end of the gate position sensor 1 is screwed into the lower end of a hollow first connecting cylinder 3. The inner side of the lower end of the first connecting cylinder 3 has an internal thread matching the gate position sensor 1. A sensor locking nut 2 is screwed onto the gate position sensor 1 located below the first connecting cylinder 3 to secure it against the lower end of the first connecting cylinder 3. After the upper end of the gate position sensor 1 is threadedly connected to the lower end of the first connecting cylinder 3, the sensor locking nut 2 is tightened around the gate position sensor 1, causing it to press upwards against the lower end of the first connecting cylinder 3. The sensor locking nut 2 and the first connecting cylinder 3 apply opposite axial forces to the gate position sensor 1, achieving a locking and fixing between the gate position sensor 1 and the first connecting cylinder 3.

[0023] The upper outer side of the first connecting cylinder 3 is provided with an external thread. The upper end of the first connecting cylinder 3 is screwed into the lower end of the hollow second connecting cylinder 5. The lower inner side of the second connecting cylinder 5 is provided with an internal thread that matches the upper end of the first connecting cylinder 3. A first connecting cylinder locking nut 4 for pressing against the lower end of the second connecting cylinder 5 is also screwed onto the external thread of the upper end of the first connecting cylinder 3. The first connecting cylinder locking nut 4 is located below the second connecting cylinder 5. After the upper end of the first connecting cylinder 3 and the lower end of the second connecting cylinder 5 are threaded together, the first connecting cylinder locking nut 4 is tightened around the first connecting cylinder 3 so that it presses against the lower end of the second connecting cylinder 5. The first connecting cylinder locking nut 4 and the second connecting cylinder 5 apply axial forces in opposite directions to the first connecting cylinder 3, thereby achieving locking and fixing between the first connecting cylinder 3 and the second connecting cylinder 5.

[0024] The upper outer side of the second connecting cylinder 5 is provided with an external thread section 11, which is screwed onto the connecting flange 6. The center of the connecting flange 6 is provided with a threaded hole 12 that matches the external thread section 11. The connecting flange 6 is connected and fixed to the interface flange of the filter body by bolts. The second connecting cylinder 5 vertically penetrates the connecting flange 6, and both the upper and lower sides of the connecting flange 6 are provided with external thread sections 11 of a certain length to adjust the installation position of the second connecting cylinder 5. A second connecting cylinder locking nut 7 is screwed onto the external thread section 11 located above the connecting flange 6 to press down against the connecting flange 6. After the external thread section 11 at the upper end of the second connecting cylinder 5 is threadedly connected to the connecting flange 6, the second connecting cylinder locking nut 7 is tightened around the second connecting cylinder 5 to press down against the connecting flange 6. The second connecting cylinder locking nut 7 and the connecting flange 6 apply axial forces in opposite directions to the second connecting cylinder 5 to achieve locking and fixing between the second connecting cylinder 5 and the connecting flange 6.

[0025] The second connecting cylinder locking nut 7 is used to abut against the upper side of the connecting flange 6, that is, the second connecting cylinder locking nut 7 is located on the outside of the filter hopper so that the second connecting cylinder locking nut 7 can be disassembled from the outside.

[0026] The outer diameter of the lower end of the second connecting cylinder 5, the outer diameter of the circumscribed circle of the first connecting cylinder locking nut 4, the outer diameter of the first connecting cylinder 3, the outer diameter of the circumscribed circle of the sensor locking nut 2, and the outer diameter of the gate position sensor 1 are all smaller than the outer diameter of the external thread section. After the second connecting cylinder 5 is removed from the connecting flange 6, the second connecting cylinder 5, the first connecting cylinder locking nut 4, the first connecting cylinder 3, the sensor locking nut 2, and the gate position sensor 1 can be taken out together through the screw hole 12 on the connecting flange 6.

[0027] The upper end of the second connecting cylinder 5 is internally screwed with a sealing component 8, which is specifically an IP65 waterproof cable connector.

[0028] The upper end of the gate position sensor 1 is connected to a sensor cable 10. The sensor cable 10 passes through the sealing assembly 8 and is connected to a light-emitting diode assembly 9 for indicating the working status of the gate position sensor 1. The light-emitting diode assembly 9 is connected in parallel to the signal circuit of the sensor cable 10.

[0029] In addition, to facilitate the use of tools to turn the second connecting cylinder 5, a square head is provided at the upper end of the second connecting cylinder 5 located above the external thread section 11.

[0030] During use:

[0031] If the gap between the gate position sensor 1 and the gate increases, loosen the locking nut 7 of the second connecting cylinder, use a wrench to hold the square head at the upper end of the second connecting cylinder 5 and turn the second connecting cylinder 5 relative to the connecting flange 6 to rotate, thereby driving the second connecting cylinder 5, the first connecting cylinder 3 and the gate position sensor 1 to move up and down, so that the gap between the gate position sensor 1 and the gate can be easily adjusted.

[0032] If the gate position sensor 1 is damaged, loosen the locking nut of the second connecting cylinder, use a wrench to rotate the second connecting cylinder 5 relative to the connecting flange 6, and unscrew the second connecting cylinder 5 from the connecting flange 6. This allows the gate position sensor 1, the first connecting cylinder 3, and the second connecting cylinder 5 to be easily removed from the filter hopper without disassembling the connecting flange 6, enabling quick and convenient replacement of the gate position sensor 1. If the internal thread at the lower end of the first connecting cylinder 3 is damaged, loosen the locking nut 4 of the first connecting cylinder, unscrew the damaged first connecting cylinder 3 from the lower end of the second connecting cylinder 5, and re-thread the machined first connecting cylinder 3 to the lower end of the second connecting cylinder 5 without welding.

[0033] An LED assembly 9 is installed on the sensor cable 10 that extends outward from the sealing assembly 8, allowing operators to more intuitively observe the working status of the gate position sensor 1. Furthermore, the pressure filter discharge device operates at approximately 0.3 MPa during normal operation. Due to the presence of the square hole 14 at the lower end of the existing gate valve position sensor mounting device, certain requirements are placed on the sealing assembly 8. This application eliminates the square hole 14, allowing the sealing assembly 8 to utilize a standard waterproof cable connector.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for installing a gate position sensor on a discharge gate valve of a pressure filter, characterized in that: The system includes a gate position sensor, the upper end of which is screwed into the lower end of a first connecting cylinder, and a sensor locking nut screwed onto the gate position sensor to abut against the lower end of the first connecting cylinder; the upper end of the first connecting cylinder is screwed into the lower end of a second connecting cylinder, and a first connecting cylinder locking nut screwed onto the first connecting cylinder to abut against the lower end of the second connecting cylinder; the second connecting cylinder is screwed onto a connecting flange, the second connecting cylinder vertically penetrating the connecting flange, and a second connecting cylinder locking nut screwed onto the second connecting cylinder to abut against one side of the connecting flange.

2. The pressure filter discharge gate valve gate position sensor installation device as described in claim 1, characterized in that: The second connecting sleeve locking nut is used to abut against the upper side of the connecting flange.

3. The device for installing a gate position sensor on a discharge gate valve of a pressure filter as described in claim 1, characterized in that: The upper outer side of the second connecting cylinder is provided with an external thread section, which is screwed onto the connecting flange; the lower outer diameter of the second connecting cylinder, the outer circle diameter of the locking nut of the first connecting cylinder, the outer diameter of the first connecting cylinder, the outer circle diameter of the locking nut of the sensor, and the outer diameter of the gate position sensor are all smaller than the outer diameter of the external thread section.

4. The installation device for the gate position sensor of the discharge gate valve of a pressure filter as described in claim 1, characterized in that: A sealing assembly is screwed into the upper end of the second connecting cylinder.

5. The pressure filter discharge gate valve gate position sensor installation device as described in claim 4, characterized in that: The upper end of the gate position sensor is connected to a sensor cable, which extends upward through the sealing assembly and is connected to a light-emitting diode assembly for indicating the working status of the gate position sensor.

Images