Super large electro-hydraulic plug-in valve

Abstract

The application discloses a super-large electro-hydraulic plug-in plate valve, which comprises a gate frame, a gate plate and a hydraulic cylinder, two gate plates are oppositely arranged in the gate frame, the hydraulic cylinder is arranged on the two sides of the gate frame, and the gate plate is connected with the gate frame through a cross beam and is driven by the cross beam. The plug-in plate adopts a panel+vertical and horizontal beam lattice structure, and has a larger bearing capacity; the left and right plug-in plates are staggered upwards and downwards, the front end of the plug-in plate is formed in a blade shape or a rod shape, the plug-in plate can cut materials, and is more easily inserted; the gate frame support wheel is formed in a box shape, the support wheel bearing can bear a large bending moment, and the support wheel group can support heavier materials; the support wheel group adopts a self-lubricating bearing, can be maintained and oiled for a long time, and the valve frame and the valve plate are not easy to be abraded and deformed; the hydraulic system is stable in starting and stopping, has high stability and high control precision, is suitable for a harsh environment, and is remote and automatic.

Description

Technical Field

[0001] This invention relates to the field of valve device technology, specifically to an ultra-large electro-hydraulic slide gate valve. This electro-hydraulic slide gate valve has a diameter exceeding 3 meters and a length or width of up to 5 meters, and can withstand extremely high pressure. Background Technology

[0002] A slide gate valve is an industrial valve mainly used for flow regulation and shut-off of solid or mixed media such as powder, granular material, coal slurry, and slag water. It features compact structure, good sealing performance, wear resistance, and flexible operation, and is widely used in metallurgy, mining, building materials, chemical, and power industries.

[0003] Slide gate valves are typically horizontally installed at the outlet of stored materials to control material discharge. The valve plates reciprocate on both sides to open and close. Currently, electro-hydraulic slide gate valves have small diameters, with length / width values ​​below 3 meters. The slide plates are mainly made of single-layer steel plates, which can only withstand low silo pressure. Material can easily get stuck between the two valve plates, making it difficult for the valve plates to close. The valve plates use a slider guide method without lubricated steel wheel guides, making the valve frame and valve plates prone to wear and deformation. The hydraulic system of slide gate valves has low automation. The slide gate valve frame has low resistance to deformation and load-bearing capacity. Summary of the Invention

[0004] The purpose of this invention is to provide an ultra-large electro-hydraulic slide gate valve with a diameter exceeding 3 meters and a length or width of up to 5 meters, capable of withstanding extremely high pressure.

[0005] To achieve the above objectives, the present invention provides an ultra-large electro-hydraulic gate valve, comprising a gate frame, gate plates, and a hydraulic cylinder. Two gate plates are arranged opposite each other within the gate frame. The hydraulic cylinder is located on both sides of the gate frame and is connected to the gate plates via a crossbeam, thereby driving the gate plates.

[0006] Furthermore, the two gate plates are positioned opposite each other within the valve opening formed in the gate frame. When the gate plates are opened, the valve opening is opened; when the valve is closed, the valve opening is closed. The size of the valve opening is determined by the degree to which the valve plates are opened.

[0007] Furthermore, the gate and gate frame of the electro-hydraulic slide gate valve are ≥3 meters long or wide, preferably about 5 meters long or wide, which can be applied to a wider range of application scenarios.

[0008] Furthermore, the four hydraulic cylinders are divided into two groups, and each group is arranged on one side of the gate frame. The telescopic ends of the two hydraulic cylinders on the same side are connected to the side of the gate plate through the crossbeam. When the hydraulic cylinder pushes, the gate plate opens; when the hydraulic cylinder retracts, the gate closes.

[0009] Furthermore, the distance from the crossbeam to one end of the gate frame is greater than or equal to half the distance of the valve port inside the gate frame, thus ensuring that the crossbeam can completely push the valve plate out of the valve port under the action of the hydraulic cylinder.

[0010] Furthermore, the two gate plates are staggered vertically, and the front end of the gate plate is made into a blade shape or a rod shape, which can cut the material. The material is less likely to get stuck between the two valve plates and is easier to open and close.

[0011] Furthermore, the inner side of the gate frame is made into a box-shaped structure, and multiple gate frame support rollers are provided on the opposite inner sides of both ends of the gate frame to form a support roller group. The gate frame support rollers adopt self-lubricating bearings, and the support roller group can support the moving gate plate and bear heavier materials. The gate frame support rollers are fitted with self-lubricating sleeves.

[0012] Furthermore, the gate frame is reinforced with a hanging steel wire rope mechanism on both sides to enhance the frame's resistance to deformation and bearing capacity.

[0013] Furthermore, a guide wheel assembly is provided on the upper side of the gate to ensure that the gate moves synchronously and stably.

[0014] Furthermore, the hydraulic cylinder is connected to the hydraulic pump station via an oil pipe, and the hydraulic pump station is electrically connected to the electrical control box, which controls the hydraulic pump station.

[0015] The beneficial effects of this invention are: 1. The insert plate of this invention adopts a panel + longitudinal and transverse beam lattice structure, which has greater load-bearing capacity; 2. In this invention, the left and right insert plates are staggered vertically, and the front end of the insert plate is made into a blade shape or a rod shape, which can cut the material and make it easier to insert. 3. The gate frame support roller of the present invention is made into a box shape, the support roller bearing is subjected to a large bending moment, and the support roller assembly can lift heavier materials; 4. The roller assembly of this invention uses self-lubricating bearings, which can be maintained without lubrication for a long time, and the valve frame and valve plate are not easily worn or deformed; 5. When the gate is closed, if a block of material is stuck between the two plates and cannot be closed, the hydraulic system pressure increases and automatically retracts, allowing the block to fall and close again. This process can be repeated several times. It will not cause the valve to not close properly or leak due to large blocks of material blocking it. The hydraulic system starts and stops smoothly, has high stability and precise control, is adaptable to harsh environments, and can be remotely and automatically controlled.

[0016] 6. The frame of this invention is equipped with a hanging steel wire rope mechanism on both sides to improve the frame's resistance to deformation; 7. The upper part of the gate plate of this invention is equipped with a guide wheel assembly, which ensures mechanical synchronization and stable synchronous movement of the gate plate, eliminating the need for a complex hydraulic synchronization system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the main structure of the ultra-large electro-hydraulic slide gate valve of the present invention; Figure 2 This is a top view schematic diagram of the ultra-large electro-hydraulic slide gate valve of the present invention; Figure 3 for Figure 2 Schematic diagram of the structure at point AA; Figure 4 This is a front view of the hydraulic system in this invention; Figure 5 This is a top view of the hydraulic system in this invention; In the attached diagram: 1. Gate frame; 2. Gate plate; 3. Hydraulic cylinder; 4. Crossbeam; 5. Valve port; 6. Gate frame support roller; 7. Self-lubricating sleeve; 8. Hanging wire rope mechanism; 9. Guide wheel assembly; 10. Oil pipe; 11. Hydraulic pump station; 12. Electrical control box. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0021] An ultra-large electro-hydraulic slide gate valve includes a gate frame 1, a gate plate 2, and a hydraulic cylinder 3. Two gate plates 2 are arranged opposite each other in the valve port 5 formed in the gate frame. Four hydraulic cylinders 3 are arranged on both sides of the gate frame 1, with two cylinders arranged opposite each other on each side. The telescopic ends of the two hydraulic cylinders 3 are connected to the side ends of the gate plate 2 through a crossbeam 4. The hydraulic cylinders 3 are connected to a hydraulic pump station 11 through an oil pipe 10. The hydraulic pump station 11 is electrically connected to an electrical control box 12, and the hydraulic pump station 11 is controlled by the electrical control box 12. The electrical control box 12 controls the hydraulic pump station 11, which in turn controls the hydraulic cylinder 3 via the hydraulic oil in the oil pipe 10. When the hydraulic cylinder 3 extends, it drives the two gate plates 2 on the left and right to push out of the valve port 5 via the crossbeam 4, thus opening the gate. When the hydraulic cylinder 3 retracts, it drives the two gate plates 2 on the left and right to push into the valve port 5 via the crossbeam 4, thus closing the gate. The two gate plates 2 are staggered vertically, and the front end of the gate plates 2 is made into a blade shape or a rod shape, which can shear the material and makes it easier to open and close. Furthermore, if a block of material is stuck between the two gate plates 2 and cannot be closed when the gate is closing, a sensor is installed at the gate, and the sensor wire is connected to the electrical control box 12. The sensor transmits an electrical signal to the electrical control box 12, which controls the hydraulic pump station 11 to increase the pressure. The gate plates 2 are then automatically retracted by the hydraulic cylinder 3, allowing the block of material to fall. The gate is then closed again by the hydraulic cylinder 3, and this process can be repeated several times.

[0022] The gate 2 and gate frame 1 of this electro-hydraulic slide gate valve are ≥3 meters long or wide, preferably up to about 5 meters long or wide, and can withstand extremely high pressure, making it suitable for a wider range of applications.

[0023] Gate 2 adopts a panel + longitudinal and transverse beam lattice structure, which has greater load-bearing capacity. Example 2

[0024] Based on the technical solution of Embodiment 1, the inner side of the gate frame 1 is made into a box-shaped material guide trough, so that the material can be smoothly fed along the inner side, and it is not easy to cause blockage on the inner side of the gate frame 1 and affect the opening and closing of the gate plate 2. Multiple gate frame support rollers 6 are provided on the opposite inner sides of both ends of the gate frame 1 to form a support roller group. The gate frame support rollers 6 adopt self-lubricating bearings, which can be maintained without oiling for a long time. The support roller group can support the moving gate plate 2 and bear heavier materials. A self-lubricating sleeve 7 is fitted on the gate frame support rollers 6. Example 3

[0025] Based on the technical solution of Embodiment 1, the two sides of the gate frame 1 are equipped with a hanging steel wire rope mechanism 8 to enhance the frame's resistance to deformation and bearing capacity, and the upper side of the gate plate 2 is equipped with a guide wheel group 9 to ensure that the mechanical movement of the gate plate 2 is synchronous and stable. Example 4

[0026] Based on the technical solution of Embodiment 2, the gate frame 1 is equipped with a hanging steel wire rope mechanism 8 on both sides to enhance the frame's resistance to deformation, and a guide wheel group 9 is set on the upper side of the gate plate 2 to ensure that the mechanical movement of the gate plate 2 is synchronous and stable.

[0027] Unless otherwise specified in the above description, all parts are prior art, or can be implemented using existing technology. Furthermore, the specific embodiments described in this invention are merely preferred embodiments and are not intended to limit the scope of this invention. That is, all equivalent changes and modifications made within the scope of this invention should be considered within the technical scope of this invention.

Claims

1. A super-large electro-hydraulic slide gate valve, characterized in that, It includes a gate frame (1), a gate plate (2) and a hydraulic cylinder (3). Two gate plates (2) are arranged opposite each other inside the gate frame (1). The hydraulic cylinder (3) is located on both sides of the gate frame (1) and is connected to the gate plate (2) through a crossbeam (4) and drives the gate plate (2).

2. The ultra-large electro-hydraulic slide gate valve according to claim 1, characterized in that, The two gate plates (2) are arranged opposite each other in the valve port (5) formed in the gate frame.

3. The ultra-large electro-hydraulic slide gate valve according to claim 1 or 2, characterized in that, The gate (2) and gate frame (1) of the electro-hydraulic gate valve have a length or width of ≥3 meters.

4. The ultra-large electro-hydraulic slide gate valve according to claim 1, characterized in that, The four hydraulic cylinders (3) are divided into two groups, and each group is arranged on one side of the gate frame (1). The extension and retraction ends of the two hydraulic cylinders (3) on the same side are connected to the side of the gate plate (2) through the crossbeam (4).

5. The ultra-large electro-hydraulic slide gate valve according to claim 2, characterized in that, The distance from the crossbeam (4) to one end of the gate frame (1) is greater than or equal to half the distance of the valve port (5) inside the gate frame (1).

6. The ultra-large electro-hydraulic slide gate valve according to claim 1, characterized in that, The two gates (2) are staggered vertically, and the front end of the gate (2) is made into a blade shape or a rod shape, which can cut the material and make it easier to open and close.

7. The ultra-large electro-hydraulic slide gate valve according to claim 1, characterized in that, The inner side of the gate frame (1) is made into a box-shaped structure. Multiple gate frame rollers (6) are provided on the opposite inner sides of both ends of the gate frame (1) to form a roller group. The gate frame rollers (6) adopt self-lubricating bearings. The roller group can support the moving gate plate (2) and bear heavier materials. The gate frame rollers (6) are fitted with self-lubricating sleeves (7).

8. The ultra-large electro-hydraulic slide gate valve according to claim 1, characterized in that, The gate frame (1) is reinforced by a hanging steel wire rope mechanism (8) on both sides to enhance the frame's resistance to deformation.

9. The ultra-large electro-hydraulic slide gate valve according to claim 1, characterized in that, The upper side of the gate (2) is provided with a guide wheel group (9) to ensure that the gate (2) moves synchronously and stably.

10. The ultra-large electro-hydraulic slide gate valve according to claim 1, characterized in that, The hydraulic cylinder (3) is connected to the hydraulic pump station (11) via the oil pipe (10). The hydraulic pump station (11) is electrically connected to the electrical control box (12) and the hydraulic pump station (11) is controlled by the electrical control box (12).

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