CN216479000U - Electrohydraulic type flashboard door with sealing device - Google Patents

Abstract

The utility model belongs to the technical field of gate valves and gate valves, and particularly relates to an electric hydraulic gate with a sealing device. Which can be sealed and does not jam. The gate plate door comprises an upper valve body, a lower valve body, a gate plate and a hydraulic cylinder, wherein the hydraulic cylinder drives the gate plate to move between the upper valve body and the lower valve body so as to realize opening or closing; the gate plate is characterized by comprising two panels, two side plates and a plurality of rib plates, wherein each panel is bent at the position of a middle axis, so that the bent panels form included angles by taking the axis as the center line; the two side plates are bent by taking the horizontal line as the center to form an included angle; during assembly, the side plates and the face plate are welded together to form a rhombic hollow structure. A plurality of rib plates are uniformly distributed in the flashboard in the direction perpendicular to the axis, holes are cut in the centers of the rib plates, and the center holes of all the rib plates are connected with a same flashboard center steel pipe.

Description

Electrohydraulic type flashboard door with sealing device

Technical Field

The utility model belongs to the technical field of gate valves and gate valves, and particularly relates to an electric hydraulic gate with a sealing device.

Background

The gate valve is a valve which is applied to industries such as power plants, thermal heating, environmental protection, metallurgy and chemical engineering, is installed in a desulfurization and denitrification system or other system pipelines and controls medium circulation in the pipelines by opening or closing.

The flashboard door and the flashboard door have similar functions and can be applied to the fields. However, the two working conditions are different, the outer size of the spile door is smaller (generally the whole size is less than 1 meter, the diameter of the spile door is less than 0.5 meter), the spile door can be horizontally and vertically installed, and the driving mode can be manual, electric or pneumatic.

The gate plate door is similar to a gate in name, has large external dimension (generally several meters or even dozens of meters), is generally vertically arranged on a horizontal pipeline, and can be driven by a zipper, a heavy hammer, an electric motor, a pneumatic motor and an electric hydraulic motor. Wherein zippers and weight hammers are more common.

In the pipeline that the flashboard door generally installed, the medium is the sulfur containing harmful gas, and the both ends one end of pipeline is system's equipment, and the other end is the atmosphere discharge port. Traditional flashboard door does not have sealing device, and sealing performance relies on the fit clearance between self flashboard and frame to realize entirely, and the high leakproofness of machining precision is slightly good, and it is poor to do work coarse then the leakproofness, and the whole all can not reach the emission requirement of national environmental protection to atmosphere. The traditional shutter door also determines that a sealing device cannot be used in a driving mode, because the traditional shutter door is opened by adopting a zipper or a heavy hammer to drive, and the closing is realized by the self weight of the shutter. If the sealing device is installed, the self weight of the flashboard is limited during shutoff, the frictional resistance of the sealing device is difficult to overcome, and the blocking phenomenon can occur, so that rapid shutoff can not be realized at a critical moment.

The most important defect of the prior gate door is that the occupied space is overlarge, and the integral size of the gate door is about three times of the caliber of a pipeline after the hydraulic driving device is connected with the gate body. Therefore, the requirement on the space working condition environment is high.

Disclosure of Invention

The utility model aims at the defects in the prior art and provides an electric hydraulic type gate with a sealing device, which can seal and cannot be blocked.

In order to achieve the purpose, the utility model adopts the following technical scheme that the gate comprises a rectangular gate valve body, wherein the gate valve body comprises an upper valve body, a lower valve body, a gate plate and a hydraulic cylinder, and the hydraulic cylinder drives the gate plate to move between the upper valve body and the lower valve body so as to realize opening or closing; the gate plate is characterized by comprising two panels, two side plates and a plurality of rib plates, wherein each panel is bent at the position of a middle axis, so that the bent panels form included angles by taking the axis as the center line; the two side plates are bent by taking the horizontal line as the center to form an included angle; during assembly, the side plates and the face plate are welded together to form a rhombic hollow structure.

A plurality of rib plates are uniformly distributed in the flashboard in the direction perpendicular to the axis, holes are cut in the centers of the rib plates, and the center holes of all the rib plates are connected with a same flashboard center steel pipe.

Furthermore, the tip of the included angle faces the axis after the side plate is bent.

Furthermore, go up the valve body and constitute by last frame, last valve body frame and flashboard door centre sill, go up the valve body frame and be in the valve body with axially parallel's both sides frame, the slide has been inlayed respectively in the frame of both sides, it is provided with pneumatic cylinder fixing support to go up the frame top.

Furthermore, the lower valve body is composed of a lower valve body frame and a lower frame, the lower valve body frame is two frames which are axially parallel and are respectively connected with the gate plate door middle beam.

Further, on the inner surfaces of the two lower valve body frames of the flashboard door, a soft seal fixing device 11 is welded, and the soft seal fixing device is used for fixing a soft sealing material (graphite packing).

Furthermore, the soft sealing fixing device comprises two F-shaped special channel steels, the two F-shaped channel steels are back to back, the notches are outward, the tail ends of the F-shaped channel steels are welded with the inner surface of the frame at an angle of 45 degrees respectively, the two outward notches are back to back at an angle of 90 degrees, the top points are not contacted and do not form top angles, and a certain gap is reserved; the welded soft sealing fixing device and the inner surface of the lower valve body frame form an isosceles triangle cavity with an angle of 45 degrees, a triangular steel pipe is placed in the cavity, and an adjusting gap is reserved between the soft sealing fixing device and the cavity; meanwhile, an adjusting bolt is fixed on the outer side face of the lower valve body frame; when screwing, the bolt is adjusted to push the triangular steel pipe to push two waist edges of the isosceles triangle of the soft seal fixing device to move outwards slightly, so that the graphite packing and the flashboard side plate form soft seal.

Furthermore, on the internal surface of lower frame, with two channel-section steels of frame parallel welding, inside fixed soft sealing material (graphite packing), the flashboard door contacts below the time and forms soft sealing with the valve plate.

Furthermore, four channel steel are welded on the inner surface of one side of the upper valve body of the flashboard door middle beam, the notches are opposite, a rhombic structure is enclosed, soft sealing materials (graphite packing) are fixed in the grooves, and the flashboard door is in contact with a flashboard panel to form soft sealing when closed.

Furthermore, an angular hard sealing device is arranged on the inner surface of the frame of the lower valve body, and the device consists of two fixed square steels parallel to the frame and angular hard sealing elastic steel bands which are respectively fixed on the square steels back to back; the distance between the two fixed square steels is larger than the thickness of the two side edges of the flashboard, and when the flashboard is closed, the two side edges of the flashboard slide down to the lower valve body along the slide way and slide between the two fixed square steels; one edge of the angular hard sealing elastic steel strip is lapped on two panels of the flashboard, and the hard sealing is formed due to the tension action of metal.

Furthermore, arc-shaped hard sealing devices are respectively arranged on the inner surfaces of the lower frame and the flashboard door center sill on one side of the lower valve body; the arc-shaped hard sealing device comprises four pieces of square steel which form a rhombus in a surrounding mode and an arc-shaped hard sealing elastic steel belt which is fixed on one side of the inner surface of the rhombus; when the flashboard door is closed, the arc-shaped hard sealing elastic steel belt is tightly extruded with the flashboard panel by the arc surface; a hard seal is formed.

Furthermore, a hydraulic cylinder of the flashboard door is connected with a hydraulic rod, the hydraulic cylinder is arranged in the upper valve body, and the front end of the hydraulic rod is connected with the bottom edge of the flashboard; when the valve is closed, the hydraulic rod is hidden in the central steel pipe of the flashboard; when the valve is opened, the hydraulic rod retracts into the cylinder, and the cylinder is hidden in the central steel pipe of the flashboard.

Compared with the prior art, the utility model has the beneficial effects.

The utility model adds a soft sealing device, the soft sealing material adopts graphite packing, the friction resistance is small, and the gate plate door can be opened and closed flexibly and stably.

The utility model has unique bolt screwing design and can freely regulate and control the soft sealing gap.

The utility model adds the hard sealing device (comprising the angular hard sealing device and the arc hard sealing device) to further enhance the smoke blocking capability, so that the double sealing protection is obtained when the flashboard door is closed, the strict sealing is realized, and the harmful smoke is effectively prevented from circulating.

The sealing plate of the utility model is made of 1.4529 or 316L stainless steel band, has good toughness and does not rust, so that the gate plate door can be opened and closed smoothly without blockage.

The design structure of the hydraulic rod hidden in the gate plate enables 1/3 space occupied by the gate plate door to be saved.

Drawings

The utility model is further described with reference to the following figures and detailed description. The scope of the utility model is not limited to the following expressions.

Fig. 1-1 is a schematic structural view of the shutter door in an open state.

Fig. 1-2 are schematic structural views of the shutter door in a closed state.

Fig. 1-3 are enlarged partial schematic views of fig. 1-1.

Fig. 2-1A-a is a schematic view of a soft sealing device, an angular hard sealing device and a flashboard matching sealing structure.

Fig. 2-2 is a partially enlarged schematic view of fig. 2-1.

Fig. 3-1B-B is a schematic view of a sealing structure of the soft sealing device, the arc-shaped hard sealing device and the gate plate in cooperation.

FIGS. 3-2 and 3-3 are enlarged partial views of FIG. 3-1.

In the figure, 1 is a hydraulic cylinder fixing support; 2 is an upper valve body; 21 is an upper valve body frame; 22 is an upper frame; 3 is a lower valve body; 31 is a lower valve body frame; 32 is a lower frame; 4 is a flashboard; 41 is a flashboard panel; 42 is a flashboard side plate; 43 is a flashboard rib plate; 44 is a central steel pipe of the gate plate; 5 is a hydraulic cylinder; 51 is a hydraulic rod; 6 is a flashboard door middle beam; 7 is a slideway; 8 is an angular hard sealing elastic steel belt; 9 is fixed square steel; 10 is an angle type hard sealing device; 11 is a soft sealing fixing device; 12 is a graphite packing; 13 is a triangular steel pipe; 14 is an adjusting bolt; 15 is an arc-shaped hard sealing device; 16 is an arc-shaped hard sealing elastic steel belt.

Detailed Description

As shown in fig. 1-1 to 3-3, the electrohydraulic shutter door with a sealing device of the present invention has a generally rectangular shape, and is composed of a hydraulic cylinder fixing support 1, an upper valve body 2, a lower valve body 3, a shutter 4, a hydraulic cylinder 5, a shutter door center sill 6, and a slide way 7. (see, e.g., FIGS. 1-1, 1-2).

In the upper valve body 2, two side frames parallel to the axial direction are upper valve body side frames 21, a slide 7 is embedded in the upper valve body side frames, and the side frame connected with the hydraulic cylinder fixing support 1 is an upper side frame 22. The upper frame 22, the upper valve body frame 21 and the flashboard door middle beam 6 form an upper valve body 2; (see FIG. 1-1, FIG. 1-2).

In the lower valve body 3, two rims parallel to the axial direction are lower valve body rims 31. The lower valve body 3 and the upper valve body 2 are connected by a flashboard door center sill 6, and the other frame except the lower valve body frames 31 at the two sides and the flashboard door center sill 6 is a lower frame 32. The flashboard door middle beam 6, the lower valve body frame 31 and the lower frame 32 form a lower valve body 3; (see, e.g., FIGS. 1-1, 1-2).

The gate plate 4 is a hollow structure and is composed of two face plates 41, two side plates 42 and rib plates 43 with different numbers. The panel is bent at the middle axis position, so that the bent panel forms an included angle by taking the axis as the two sides of the center line. The two side panels and the face panel are bent in the same way and when assembled the side panels 42 are back to back and the face panels 41 are welded together face to form the hollow diamond-like hollow shutter 4.

The inner part of the gate plate 4 is uniformly distributed with rib plates with different numbers in the direction vertical to the axis. The center of the rib plate is cut, and the center holes of all the rib plates are connected by a steel pipe with the same size, namely a central steel pipe 44 of the flashboard. (see fig. 2-1).

Preferably, a soft seal fixing device 11 is welded on the inner surface of the two lower valve body frames 31 of the flashboard door in parallel with the frames and is used for fixing a soft sealing material (graphite packing 12).

This soft sealing device 11 comprises two special type channel-section steels similar to the F type, and these two F type channel-section steels become back to back, and the notch is outwards, and F's tail end becomes 45 degrees angle welding with the frame internal surface respectively, and two outside notches become 90 degrees angles back to back, and the summit does not contact and does not form the apex angle, leaves certain gap.

The welded soft sealing fixing device 11 and the inner surface of the lower valve body frame 31 form an isosceles triangle cavity with an angle of 45 degrees, a triangular steel pipe 13 is placed in the cavity, and an adjusting gap is reserved between the soft sealing fixing device 11 and the cavity.

Meanwhile, an adjusting bolt 14 is fixed on the outer side surface of the lower valve body frame 31. When the flexible seal fixing device is screwed tightly, the adjusting bolt 14 pushes the triangular steel tube 13 to push the two waist edges of the isosceles triangle of the flexible seal fixing device 11 to slightly move outwards, so that the graphite packing 12 and the flashboard side plate 42 form flexible seal (as shown in fig. 2-1).

Preferably, two channel steels are welded on the inner surface of the lower frame 32 of the gate board door in parallel with the frame, a soft sealing material (graphite packing 12) is fixed inside, and the gate board door is in contact with the lower surface of the valve plate to form a soft seal when closed (as shown in fig. 3-1).

Preferably, four channel steel are welded on the inner surface of one side of the upper valve body 2 of the flashboard door center sill 6, the notches are opposite and surround to form a similar rhombus, soft sealing materials (graphite packing 12) are fixed in the grooves, and the flashboard door contacts with the flashboard panel 41 to form soft sealing when being closed (see fig. 3-1).

Preferably, the inner surface of the lower valve body frame 31 of the gate valve is provided with an angular hard sealing device 10. The device comprises two fixed square steels 9 that are parallel to the frame and angular form hard seal elastic steel strip 8 that fixes on square steel 9 back to back respectively, and these two square steels interval slightly is greater than the thickness of two sides of flashboard 4, and when the flashboard door was closed, two sides of flashboard 4 slided to lower valve body 3 along slide 7 in, slided between two fixed square steels 9, and one limit of angular form hard seal elastic steel strip 8 is taken on two panels 41 of flashboard 4 respectively, because the tension effect of metal forms hard seal, (as figure 2-1).

Preferably, the shutter lower frame 32 and the shutter center sill 6 are respectively provided with arc-shaped hard sealing means 15 on one side inner surface of the lower valve body 3. The device consists of four pieces of square steel which is enclosed into a shape (similar to a diamond) which is the same as that of the flashboard panel 41 and an arc-shaped hard sealing elastic steel belt 16 which is fixed on one side of the inner surface of the diamond. When the gate plate door is closed, the arc-shaped hard sealing elastic steel belt is tightly pressed together with the gate plate panel 41 by the arc surface. A hard seal is formed (see fig. 3-1).

Preferably, a hydraulic rod 51 (fig. 1-2) is connected to the hydraulic cylinder 5 of the gate door. The hydraulic cylinder is arranged in the upper valve body 2, and the front end of the hydraulic rod 51 is connected with the bottom edge of the flashboard 4. When the valve is closed, the hydraulic rod is hidden in the central steel pipe 44 of the flashboard 4. When the valve is opened, the hydraulic rod retracts into the cylinder, and the cylinder is hidden in the central steel pipe 44 of the flashboard 4 (as shown in figures 1-1 and 1-2).

Referring to fig. 1-1 and 1-2, when the gate plate door is opened, the hydraulic rod 51 is retracted to drive the gate plate 4 to be pulled upwards until the hydraulic rod 51 is fully retracted into the hydraulic cylinder 5, and simultaneously, the hydraulic cylinder 5 is also retracted into the gate plate center steel pipe 44. When the gate plate door is closed, the hydraulic rod 51 extends out to push the gate plate 4 to descend downwards along the slideway 7 until the lower edge of the gate plate 4 is in contact seal with the lower frame 32.

Referring to fig. 2-1, a soft seal fixing device 11 is welded on the inner surfaces of two lower valve body frames 31 of the flashboard door in parallel with the frames and used for fixing a soft sealing material (graphite packing 12). This soft sealing device 11 comprises two special type channel-section steels similar to the F type, and these two F type channel-section steels become back to back, and the notch is outwards, and F's tail end becomes 45 degrees angle welding with the frame internal surface respectively, and two outside notches become 90 degrees angles back to back, and the summit does not contact and does not form the apex angle, leaves certain gap. The welded soft sealing fixing device 11 and the inner surface of the lower valve body frame 31 form an isosceles triangle cavity with an angle of 45 degrees, a triangular steel pipe 13 is placed in the cavity, and an adjusting gap is reserved between the soft sealing fixing device 11 and the cavity. Meanwhile, an adjusting bolt 14 is fixed on the outer side surface of the lower valve body frame 31. When screwing, the adjusting bolt 14 pushes the triangular steel tube 13 to push the two waist edges of the isosceles triangle of the soft seal fixing device 11 to slightly move outwards, so that the graphite packing 12 and the flashboard side plate 42 form soft seal.

Referring to fig. 3-1, two channel steel are welded on the inner surface of the lower frame 32 of the gate board door in parallel with the frame, a soft sealing material (graphite packing 12) is fixed inside the channel steel, and the gate board door is in contact with the lower surface of the valve plate to form soft sealing when closed.

Referring to fig. 3-1, four channel steel are welded on the inner surface of one side of the upper valve body 2 of the flashboard door center sill 6, the notches are opposite and enclose a similar rhombus, a soft sealing material (graphite packing 12) is fixed in the notches, and the flashboard door contacts with a flashboard panel 41 to form soft sealing when being closed.

Referring to fig. 2-1, the inner surface of the lower valve body frame 31 of the gate valve is provided with an angular hard sealing device 10. The device comprises two fixed square steels 9 that are on a parallel with the frame and angular form hard seal elastic steel strip 8 that fixes on square steel 9 back to back respectively, and these two square steel intervals slightly are greater than the thickness of two sides of flashboard 4, and when the flashboard door was closed, two sides of flashboard 4 when following slide 7 gliding to lower valve body 3, slided between two fixed square steels 9, and an limit of angular form hard seal elastic steel strip 8 is taken respectively on two panels 41 of flashboard 4, because the tension effect of metal forms hard seal.

Referring to fig. 3-1, the shutter lower frame 32 and the shutter center sill 6 are respectively provided with arc-shaped hard seals 15 on one inner surface of the lower valve body 3. The device consists of four pieces of square steel which is enclosed into a shape (similar to a diamond) which is the same as that of the flashboard panel 41 and an arc-shaped hard sealing elastic steel belt 16 which is fixed on one side of the inner surface of the diamond. When the gate plate door is closed, the arc-shaped hard sealing elastic steel belt is tightly pressed together with the gate plate panel 41 by the arc surface. A hard seal is formed.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the utility model.

Claims (10)

1. An electric hydraulic gate plate door with a sealing device comprises a rectangular gate plate door body, wherein the gate plate door comprises an upper valve body, a lower valve body, a gate plate and a hydraulic cylinder, and the hydraulic cylinder drives the gate plate to move between the upper valve body and the lower valve body so as to realize opening or closing; the gate plate is characterized by comprising two panels, two side plates and a plurality of rib plates, wherein each panel is bent at the position of a middle axis, so that the bent panels form included angles by taking the axis as the center line; the two side plates are bent by taking the horizontal line as the center to form an included angle; when the assembly is carried out, the side plates and the panel are welded together to form a rhombic hollow structure;

a plurality of rib plates are uniformly distributed in the flashboard in the direction perpendicular to the axis, holes are cut in the centers of the rib plates, and the center holes of all the rib plates are connected with a same flashboard center steel pipe.

2. The electrohydraulic shutter door with sealing means of claim 1, wherein: the lateral plate is bent, and the tip of the included angle faces the axis.

3. The electrohydraulic shutter door with sealing means of claim 1, wherein: the upper valve body is composed of an upper frame, an upper valve body frame and a flashboard door center sill, the upper valve body frame is two side frames which are parallel to the axial direction in the upper valve body, slide ways are respectively embedded in the two side frames, and a hydraulic cylinder fixing support is arranged at the top of the upper frame; the hydraulic cylinder of the flashboard door is connected with a hydraulic rod, the hydraulic cylinder is arranged in the upper valve body, and the front end of the hydraulic rod is connected with the bottom edge of the flashboard; when the valve is closed, the hydraulic rod is hidden in the central steel pipe of the flashboard; when the valve is opened, the hydraulic rod retracts into the cylinder, and the cylinder is hidden in the central steel pipe of the flashboard.

4. An electrohydraulic shutter door with sealing means according to claim 3 wherein: the lower valve body is composed of a lower valve body frame and a lower frame, the lower valve body frame is two frames which are parallel in the axial direction and are respectively connected with the center sill of the flashboard door.

5. The electrohydraulic shutter door with sealing means of claim 4, wherein: and soft sealing fixing devices are welded on the inner surfaces of the two lower valve body frames of the flashboard door and are used for fixing soft sealing materials.

6. An electrohydraulic shutter door with sealing means according to claim 5 wherein: the soft sealing fixing device comprises two F-shaped special channel steels, the two F-shaped channel steels are back to back, the notches are outward, the tail ends of the F-shaped channel steels are welded with the inner surface of the frame at an angle of 45 degrees respectively, the two outward notches are back to back at an angle of 90 degrees, the vertex is not contacted with the vertex to form a vertex angle, and a certain gap is reserved; the welded soft sealing fixing device and the inner surface of the lower valve body frame form an isosceles triangle cavity with an angle of 45 degrees, a triangular steel pipe is placed in the cavity, and an adjusting gap is reserved between the soft sealing fixing device and the cavity; meanwhile, an adjusting bolt is fixed on the outer side face of the lower valve body frame; when screwing, the bolt is adjusted to push the triangular steel pipe to push two waist edges of the isosceles triangle of the soft seal fixing device to move outwards slightly, so that the graphite packing and the flashboard side plate form soft seal.

7. An electrohydraulic shutter door with sealing means according to claim 6 wherein: on the internal surface of lower frame, with two channel-section steels of frame parallel welding, inside fixed soft sealing material, when the flashboard door was closed with the contact below the valve plate form soft sealing.

8. The electrohydraulic shutter door with sealing means of claim 1, wherein: the gate plate door middle beam is welded with four channel steel on the inner surface of one side of the upper valve body, the notches are opposite, a rhombic structure is enclosed, soft sealing materials are fixed in the grooves, and the gate plate door is in contact with a gate plate panel to form soft sealing when closed.

9. The electrohydraulic shutter door with sealing means of claim 1, wherein: the inner surface of the frame of the lower valve body is provided with an angular hard sealing device which consists of two fixed square steels parallel to the frame and angular hard sealing elastic steel bands which are respectively fixed on the square steels back to back; the distance between the two fixed square steels is larger than the thickness of the two side edges of the flashboard, and when the flashboard is closed, the two side edges of the flashboard slide down to the lower valve body along the slide way and slide between the two fixed square steels; one edge of the angular hard sealing elastic steel strip is lapped on two panels of the flashboard, and the hard sealing is formed due to the tension action of metal.

10. The electrohydraulic shutter door with sealing means of claim 4, wherein: the lower frame and the flashboard door middle beam are respectively provided with an arc-shaped hard sealing device on the inner surface of one side of the lower valve body; the arc-shaped hard sealing device comprises four pieces of square steel which form a rhombus in a surrounding mode and an arc-shaped hard sealing elastic steel belt which is fixed on one side of the inner surface of the rhombus; when the flashboard door is closed, the arc-shaped hard sealing elastic steel belt is tightly extruded with the flashboard panel by the arc surface; a hard seal is formed.

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