Electric hydraulic gate valve with good durability

Abstract

The electric hydraulic gate valve with the good durability comprises a frame, a fixing plate is fixedly connected to the top of the frame, a hydraulic cylinder is installed at the bottom of the fixing plate, sliding grooves which are symmetrically distributed are formed in the frame, an inserting plate is slidably connected between the two sliding grooves, and the hydraulic rod end of the hydraulic cylinder is fixedly connected with the top of the inserting plate; sealing grooves are formed in the left side and the right side of the inserting plate correspondingly, sealing blocks and V-shaped sealing strips symmetrically distributed relative to the sealing blocks are arranged in the two sliding grooves correspondingly, the two V-shaped sealing strips and the sealing blocks are fixed through a plurality of first bolts, and sealing rubber wheels are arranged in the two sliding grooves correspondingly; the sealing block and the V-shaped sealing strip are arranged in the sealing groove, the sealing performance between the inserting plate and the sliding groove is further guaranteed, meanwhile, the sealing performance between the inserting plate and the sliding groove is further enhanced through the sealing rubber wheel, three seals are achieved in total, smoke is prevented from leaking from the sliding groove when the inserting plate is used, and zero leakage of the smoke is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hydraulic gate valves, in particular to an electric hydraulic gate valve with good durability. Background Art

[0002] The electric hydraulic gate valve is a gate valve that uses an electric hydraulic push rod as a driving device. It is mainly composed of a valve body, a gate, an electric hydraulic push rod, etc. Its working principle is to drive the gate to move in the valve body through the telescopic movement of the electric hydraulic push rod, thereby realizing the opening and closing of the valve. The electric hydraulic gate valve can be connected to the control system to realize automatic control, improve production efficiency and work accuracy, and the electric hydraulic gate-type damper door is used to connect the equipment of the boiler system and the desulfurization system. It has a great impact on the application of the boiler system and the desulfurization system. The electric hydraulic damper door is mostly used as the inlet damper door of the desulfurization system, the outlet damper door of the desulfurization system, and the bypass damper door in the desulfurization system. However, the existing technology has the following shortcomings when used:

[0003] Most of the electric hydraulic gate valves adopt single or double sealing. The gate is driven by hydraulic pressure to slide in the slide. After the gate is used for a long time, a small amount of smoke may leak from the slide, and the seal needs to be further strengthened.

[0004] Therefore, an electric hydraulic gate valve with good durability is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to address the problem that most of the existing electric hydraulic gate valves adopt single or double sealing, and the gate is driven by hydraulic pressure to slide in the slide groove. After the gate is used for a long time, a small amount of smoke may leak from the slide groove, and the sealing needs to be further strengthened.

[0006] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0007] The invention discloses an electric hydraulic gate valve with good durability to improve the above problems.

[0008] The specific application is as follows:

[0009] An electric hydraulic gate valve with good durability comprises a frame, a fixed plate is fixedly connected to the top of the frame, a hydraulic cylinder is installed at the bottom of the fixed plate, symmetrically distributed slide grooves are provided on the frame, a gate plate is slidably connected between two of the slide grooves, a hydraulic rod end of the hydraulic cylinder is fixedly connected to the top of the gate plate, sealing grooves are provided on the left and right sides of the gate plate, sealing blocks and V-shaped sealing strips symmetrically distributed about the sealing blocks are provided in the two slide grooves, the two V-shaped sealing strips are fixed to the sealing blocks by first bolts, and the number of first bolts is several, and sealing rubber wheels are provided in the two slide grooves.

[0010] As a preferred technical solution of the present application, the bottom of the plug board is an inverted triangle, a slot is provided on the frame, a sealing gasket is provided in the slot, and the bottom of the plug board is placed in the slot and fits with the sealing gasket.

[0011] As a preferred technical solution of the present application, the sealing block and the V-shaped sealing strip are placed in the sealing groove.

[0012] As a preferred technical solution of the present application, the front end face and the rear end face of the plug board are both of diamond-shaped design.

[0013] As a preferred technical solution of the present application, the hydraulic rod end of the hydraulic cylinder movably penetrates the fixed plate.

[0014] As a preferred technical solution of the present application, the interior of the plug board is a hollow structure.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the scheme of this application:

[0017] 1. The sealing groove, sealing block, V-shaped sealing strip, first bolt and sealing rubber wheel are arranged, and the sealing block and V-shaped sealing strip are placed in the sealing groove, so as to further ensure the sealing between the plug plate and the slide groove. Meanwhile, the sealing rubber wheel further enhances the sealing between the plug plate and the slide groove. There are three seals in total, so as to prevent the smoke from leaking from the slide groove when the plug plate is in use. This solves the problem that most of the electric hydraulic plug plate valves in the prior art adopt single or double seals, and the plug plate is driven by hydraulic pressure to slide in the slide groove. After the plug plate is used for a long time, a small amount of smoke may leak from the slide groove, and the sealing needs to be further strengthened.

[0018] 2. Through the provision of the card slot and the sealing gasket, the bottom of the plug plate is placed in the card slot and fits with the sealing gasket, ensuring the sealing between the plug plate and the frame when the plug plate valve is in the closed state, so that the plug plate achieves a better smoke blocking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1A schematic diagram of the front view structure of an electric hydraulic gate valve with good durability provided in the present application.

[0020] Figure 2 A schematic diagram of the overall structure of an electric hydraulic gate valve with good durability provided in this application.

[0021] Figure 3 A schematic diagram of the explosion structure of an electric hydraulic gate valve with good durability provided in this application.

[0022] Figure 4 A schematic diagram of a top-view cross-sectional structure of an electric hydraulic gate valve with good durability provided in the present application.

[0023] Indicated in the figure:

[0024] 1. Frame; 2. Fixed plate; 3. Hydraulic cylinder; 4. Slide; 5. Insert plate; 6. Sealing groove; 7. Sealing block; 8. V-shaped sealing strip; 9. First bolt; 10. Sealing rubber wheel; 11. Slot; 12. Sealing pad. DETAILED DESCRIPTION

[0025] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0026] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Example

[0030] like Figure 1-4 As shown, an electric hydraulic gate valve with good durability proposed in this embodiment includes a frame 1, a fixed plate 2 is fixedly connected to the top of the frame 1, a hydraulic cylinder 3 is installed at the bottom of the fixed plate 2, the gate 5 is driven by the hydraulic cylinder 3, the operating cost is low, a symmetrically distributed slide groove 4 is provided on the frame 1, a gate 5 is slidably connected between the two slide grooves 4, the hydraulic rod end of the hydraulic cylinder 3 is fixedly connected to the top of the gate 5, sealing grooves 6 are provided on the left and right sides of the gate 5, sealing blocks 7 and V-shaped sealing strips 8 symmetrically distributed about the sealing blocks 7 are provided in the two slide grooves 4, the sealing blocks 7 and the V-shaped sealing strips 8 are placed in the sealing grooves 6, and the sealing between the gate 5 and the slide groove 4 is further ensured. The two V-shaped sealing strips 8 are fixed to the sealing block 7 by first bolts 9, and the number of first bolts 9 is several, and sealing rubber wheels 10 are provided in the two slide grooves 4, and the sealing rubber wheels 10 further enhance the sealing between the gate 5 and the slide groove 4.

[0031] like Figure 3 As shown, the bottom of the plug plate 5 is an inverted triangle, a card slot 11 is opened on the frame 1, a sealing gasket 12 is arranged in the card slot 11, and the bottom of the plug plate 5 is placed in the card slot 11 and fits with the sealing gasket 12, which ensures that the plug plate valve is in a closed state. The sealing between the plug plate 5 and the frame 1 enables the plug plate 5 to achieve a better smoke blocking effect.

[0032] like Figure 4 As shown, the sealing block 7 and the V-shaped sealing strip 8 are placed in the sealing groove 6 , which further ensures the sealing between the plug board 5 and the slide groove 4 .

[0033] like Figure 3 As shown, the front end face and the rear end face of the plug board 5 are both diamond-shaped. The plug board 5 is designed from the mechanical and thermal perspectives, adopts a diamond composite plate structure, and the internal rib plate is computer numerically controlled to ensure that it will not deform under high temperature and large temperature difference conditions, is resistant to tensile deformation, and has a longer service life.

[0034] like Figure 1 As shown, the hydraulic rod end of the hydraulic cylinder 3 movably penetrates the fixed plate 2.

[0035] like Figure 1 As shown, the interior of the plug plate 5 is a hollow structure, the plug plate 5 and the frame 1 are both made of carbon steel, the outer surfaces of the plug plate 5 and the frame 1 are coated with high-temperature silver paint for corrosion prevention, and the plug plate 5 is filled with sealing material to achieve zero smoke leakage.

[0036] Specifically, when the electric hydraulic gate valve with good durability is in use: the sealing block 7 and the V-shaped sealing strip 8 are placed in the sealing groove 6, which further ensures the sealing between the gate 5 and the slide groove 4. At the same time, the sealing rubber wheel 10 further enhances the sealing between the gate 5 and the slide groove 4. There are three seals in total to prevent smoke from leaking from the slide groove 4 when the gate 5 is in use. The hydraulic cylinder 3 is connected to the external control device, and the gate 5 is driven to rise and fall by the hydraulic cylinder 3. When the bottom of the gate 5 is placed in the card groove 11 and fits with the sealing gasket 12, the sealing between the gate 5 and the frame 1 is ensured when the gate valve is in a closed state, so that the gate 5 achieves a better smoke blocking effect.

[0037] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. An electric hydraulic gate valve with good durability, comprising a frame (1), characterized in that: The frame (1) is fixedly connected to a fixed plate (2) at the top, a hydraulic cylinder (3) is installed at the bottom of the fixed plate (2), the frame (1) is provided with symmetrically distributed slide grooves (4), a plug plate (5) is slidably connected between two of the slide grooves (4), a hydraulic rod end of the hydraulic cylinder (3) is fixedly connected to the top of the plug plate (5), the plug plate (5) is provided with sealing grooves (6) on both sides, the two slide grooves (4) are provided with sealing blocks (7) and V-shaped sealing strips (8) symmetrically distributed about the sealing blocks (7), the two V-shaped sealing strips (8) are fixed to the sealing blocks (7) by first bolts (9), and the number of the first bolts (9) is several, and the two slide grooves (4) are provided with sealing rubber wheels (10).

2. The electric hydraulic gate valve with good durability according to claim 1, characterized in that: The bottom of the plug board (5) is in the shape of an inverted triangle. A slot (11) is provided on the frame (1). A sealing gasket (12) is provided in the slot (11). The bottom of the plug board (5) is placed in the slot (11) and fits the sealing gasket (12).

3. The electric hydraulic gate valve with good durability according to claim 1, characterized in that: The sealing block (7) and the V-shaped sealing strip (8) are placed in the sealing groove (6).

4. The electro-hydraulic gate valve with good durability according to claim 1, characterized in that: The front end face and the rear end face of the plug board (5) are both of diamond-shaped design.

5. The electric hydraulic gate valve with good durability according to claim 1, characterized in that: The hydraulic rod end of the hydraulic cylinder (3) movably penetrates the fixed plate (2).

6. The electro-hydraulic gate valve with good durability according to claim 1, characterized in that: The interior of the plug plate (5) is a hollow structure.

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