CN215410273U

CN215410273U - Novel gate valve

Info

Publication number: CN215410273U
Application number: CN202121732452.0U
Authority: CN
Inventors: 高松; 李腾飞; 韩永辉; 纪晓毅; 吴克元; 宁石东
Original assignee: Henan Fangyuan Industrial Furnace Design And Manufacturing Co ltd
Current assignee: Henan Fangyuan Industrial Furnace Design And Manufacturing Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-01-04
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a novel gate valve, which comprises a valve plate, a frame, a movable pulley, a steel wire rope, a fixed pulley, a sealing pressing strip, a lifting lug and an electric driving device, wherein the valve plate is arranged on the frame; the valve plate is arranged in the frame, the upper edge of the valve plate is fixedly connected with two movable pulleys, and two sealing pressing strips are respectively fixed on the end faces of two sides of the upper edge; the frame is of a rectangular frame structure, two fixed pulleys are arranged on the right side of the top of the frame side by side, and a lifting lug is arranged on the left side of the top of the frame; one end of the steel wire rope is connected to the lifting lug, and the other end of the steel wire rope is connected to the electric driving device at the bottom of the frame vertically and downwards through the two movable pulleys and the two fixed pulleys in sequence. The gate valve is simple in structure and convenient to operate, the valve plate moves up and down through the steel wire rope by the movable pulley and the fixed pulley, and the force borne by the tail end of the steel wire rope is reduced in the ascending process of the valve plate, so that the load of the electric driving device is reduced, the ascending of the valve plate is more convenient, and the working efficiency is greatly improved.

Description

Novel gate valve

Technical Field

The utility model belongs to the technical field of design of gate valves, and particularly relates to a novel gate valve capable of running safely and stably.

Background

The gate valves are of various types, most of the gate valves on the market are small-sized manually operated gate valves, a screw is arranged in the middle of each gate valve, a handle on the upper portion of the screw is rotated to control the opening and closing of a valve plate, and the screw type gate valve is only suitable for small-diameter pipelines. For the flue gas wind passageway on the petrochemical industry stove, the size is bigger usually, if adopt screw rod type's slide valve on the market, not only needs bigger operating space, can improve the processing cost of slide valve moreover greatly, and because of the dead weight of flashboard, the operation is unstable when whereabouts, has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel gate valve, wherein a fixed pulley is arranged on the top of a frame, a movable pulley is arranged on a valve plate, an electric driving device is utilized, the valve plate is pulled to ascend and descend by the movement of a steel wire rope on the pulley, a channel is automatically opened and closed, the electric driving device is automatically locked and does not rotate when the power is off, the valve plate stops moving, and the stable, safe and reliable operation of the gate valve is ensured.

The purpose of the utility model can be realized by adopting the following technical scheme: a novel gate valve comprises a valve plate, a frame, a movable pulley, a steel wire rope, a fixed pulley, a sealing pressing strip, a lifting lug and an electric driving device; the valve plate is arranged in the frame, the upper edge of the valve plate is fixedly connected with two movable pulleys, and the end surfaces of two sides of the upper edge are respectively and fixedly connected with sealing pressing strips; the frame is of a rectangular frame structure, the rectangular frame is composed of channel steel and is fixed together by welding, horizontally symmetrical connecting angle steel is respectively arranged on the outer sides of the middle parts of the two vertical channel steel of the frame, the connecting angle steel is fixed on the outer side surfaces of the two vertical channel steel by bolts to divide the frame into an upper part and a lower part, two fixed pulleys are arranged on the right side of the top of the upper part of the frame side by side and are fixed on the channel steel by bolts, a lifting lug is fixedly connected on the left side of the frame, and the lower part of the frame is provided with a square valve channel interface; the electric driving device is arranged at the bottom of the right side outside the frame; one end of the steel wire rope is connected to the lifting lug, and the other end of the steel wire rope is vertically and downwards connected to a motor of the electric driving device through two movable pulleys on the valve plate and two fixed pulleys on the top of the frame in sequence.

The inner sides of the connecting angle steels are respectively fixedly connected with two horizontally symmetrical supporting angle steels through bolts, gaps are reserved between the two supporting angle steels, and the horizontal steel plates of the supporting angle steels are respectively fixedly connected with two symmetrically arranged positioning channel steels through bolts.

The gap between the two supporting angle steels is larger than the thickness of the valve plate, and the bottoms of the two supporting angle steels are fixedly connected with heat-insulating cotton linings for heat insulation; the distance between the two positioning channel steels is matched with the sum of the valve plate and the sealing pressing strips fixed on the two sides of the valve plate.

The inner sides of two vertical channel steels on the upper part of the frame are respectively provided with a group of vertically symmetrical guide rail angle steels with guiding functions, the guide rail angle steels are fixedly connected with the channel steels together, the positions of the guide rail angle steels are corresponding to the positions of the valve plates in the frame, and gaps between every two groups of guide rail angle steels are matched with the thicknesses of the valve plates.

The inner sides of two vertical channel steels on the upper part of the frame and the tops of the two vertical channel steels corresponding to the guide rail angle steel are respectively provided with a limiting block, the limiting blocks are fixed on the channel steels through bolts, and the heights of the limiting blocks are matched with the upward running stroke of the valve plate.

The channel steel at the bottom of the frame is symmetrically provided with a guide sealing strip for sealing and a heat insulation cotton lining for heat insulation, and the back of the upper part of the frame is fixedly connected with a reinforcing rib plate for stabilizing the frame.

The valve plate is of a square flat plate structure, is arranged between the two supporting angle steels and pulls the movable pulley to slide up and down between the supporting angle steels through the steel wire rope.

The valve plate is of a rectangular flat plate structure with semicircular bottom edges, a circular valve channel pipe is arranged at the center of the lower portion of the frame and fixed on channel steel on two sides of the frame through welding, the circular valve channel pipe is formed by rolling steel plates, the length of the circular valve channel pipe is larger than the thickness of the frame, the middle portion of the length direction is divided into two halves, a middle gap is matched with the thickness of the valve plate, supporting rods in the shape of a symmetrical 'eight' are arranged below the outer wall of the circular valve channel pipe, one end of each supporting rod is fixedly connected to the outer wall of the circular valve channel pipe, and the other end of each supporting rod is fixedly connected to the lower portions of the vertical channel steel on two sides.

The upper portion of circular valve passageway pipe and frame lower part between set up supplementary sealed section, supplementary sealed section comprises two-layer steel sheet and the cotton lining of heat preservation of clamp between two-layer steel sheet, the symmetric arrangement is in the front and back both sides face of valve board, the height of supplementary sealed section and the semicircular radius phase-match in valve board lower part, the inside below equipartition of circular valve passageway pipe sets up symmetrical guide seal strip, set up the cotton lining of heat preservation around the outer wall of circular valve passageway pipe.

The right side edge of the upper part of the valve plate is fixedly connected with a gate valve pointer for prompting an operator to open and close the valve plate; switch marks for prompting the valve plate to move up and down are arranged on the outer side faces of the upper end and the lower end of the right channel steel on the upper portion of the frame, and the positions of the switch marks correspond to gate valve pointers when the valve plate moves up and down in place.

The utility model has the beneficial effects that: the valve plate of the gate valve moves up and down through the steel wire rope by the movable pulley and the fixed pulley, and the force borne by the tail end of the steel wire rope is reduced in the ascending process of the gate valve, so that the load of the electric driving device is reduced, and the ascending of the valve plate is more convenient; a sealing depression bar and a heat-insulating cotton lining are arranged between the valve plate and the frame, so that the sealing and heat-insulating effects are achieved; the motor is automatically locked and does not rotate during power failure, the valve plate is paused, the safety and reliability of an operation site are ensured, the gate valve is simple in structure and convenient to operate, and the working efficiency is greatly improved.

Drawings

FIG. 1 is a schematic side view of a square valve port connection structure according to the present invention;

FIG. 2 is a schematic front view of a square valve channel interface connection structure according to the present invention;

FIG. 3 is a schematic right sectional view of FIG. 2;

FIG. 4 is an enlarged view of portion A-A of FIG. 3;

FIG. 5 is a schematic side view of the circular valve passage tube connection structure of the present invention;

FIG. 6 is a schematic front view of a circular valve passage tube connection structure according to the present invention;

FIG. 7 is a schematic right sectional view of FIG. 6;

FIG. 8 is a side view of a circular valve plate of the present invention;

the labels in the figure are: 1. the device comprises a valve plate, 2, a frame, 3, a movable pulley, 4, a steel wire rope, 5, a fixed pulley, 6, a lifting lug, 7, a sealing pressing strip, 8, an electric driving device, 9, a gate valve pointer, 10, a switch identifier, 11, guide rail angle steel, 12, a limiting block, 13, connecting angle steel, 14, support angle steel, 15, a positioning channel steel, 16, a heat insulation cotton lining, 17, a guide sealing strip, 18 and a reinforcing rib plate; 19. circular valve passageway pipe, 20, bracing piece, 21, supplementary seal segment.

Detailed Description

The following detailed description of embodiments of the utility model is provided in connection with the accompanying drawings.

The first embodiment is as follows: as shown in fig. 1, 2, 3 and 4, a novel gate valve comprises a valve plate 1, a frame 2, a movable pulley 3, a steel wire rope 4, a fixed pulley 5, a lifting lug 6, a sealing pressing strip 7 and an electric driving device 8; when the smoke and air passage opening is square, the valve plate 1 is of a square flat plate structure, the valve plate 1 is arranged inside the frame 2, the upper edge of the valve plate is fixedly connected with the two movable pulleys 3, the two side end faces of the upper edge are respectively and fixedly connected with the sealing pressing strips 7, and the sealing pressing strips 7 are always kept to be tightly attached to the valve plate 1 along with the up-and-down movement of the valve plate 1, so that the sealing performance of the passage is ensured; the frame 2 is of a rectangular frame structure, the rectangular frame is composed of channel steel and is fixed together by welding, horizontally symmetrical connecting angle steels 13 are respectively arranged on the outer sides of the middle parts of two vertical channel steel of the frame 2, the connecting angle steels 13 are fixed on the outer side surfaces of the two vertical channel steel by bolts to divide the frame 2 into an upper part and a lower part, two fixed pulleys 5 are arranged on the right side of the top of the upper part of the frame 2 side by side and are fixed on the channel steel by bolts, a lifting lug 6 is fixedly connected on the left side, the lower part of the frame 2 is provided with a square valve channel interface, and the interface corresponds to an externally connected square smoke and air channel port; the inner sides of the connecting angle steels 13 are fixedly connected with two horizontally symmetrical supporting angle steels 14 through bolts respectively, the horizontal steel plates of the supporting angle steels 14 are fixedly connected with two symmetrically arranged positioning channel steels 15 through bolts respectively, a gap is reserved between the two supporting angle steels 14 and is larger than the thickness of the valve plate 1, the distance between the two positioning channel steels 15 is matched with the sum of the valve plate 1 and sealing pressing strips 7 fixed on the two sides of the valve plate 1, the valve plate 1 is ensured to run smoothly up and down between the two positioning channel steels 15, and the bottoms of the two supporting angle steels 14 are fixedly connected with heat-insulating cotton linings 16 to play a role in heat insulation on the gate valve; a group of vertically symmetrical guide rail angle steels 11 are respectively arranged on the inner sides of two vertical channel steels on the upper part of the frame 2, the guide rail angle steels 11 are fixedly connected with the channel steels, the arranged positions of the guide rail angle steels correspond to the position of the valve plate 1 in the frame 2, the gap between each group of guide rail angle steels 11 is matched with the thickness of the valve plate 1, and the guide rail angle steels 11 play a role in guiding, so that the valve plate 1 can be conveniently and smoothly moved between the guide rail angle steels 11; limiting blocks 12 are respectively arranged on the inner sides of two vertical channel steels on the upper part of the frame 2 and the tops of the two vertical channel steels corresponding to the guide rail angle steel 11, the limiting blocks 12 are fixed on the channel steels through bolts, the heights of the limiting blocks 12 are matched with the upward running stroke of the valve plate 1, and the valve plate 1 is guaranteed to run upwards and just touch the limiting blocks when a channel opening is completely opened; the valve plate 1 is arranged between two support angle steels 14, the valve plate 1 pulls the movable pulley 3 to slide up and down between the support angle steels 14 through a steel wire rope 4, and the right side edge of the upper part of the valve plate 1 is fixedly connected with a gate valve pointer 9 for prompting an operator to switch on and off the valve plate 1; the channel steel at the bottom of the frame 2 is symmetrically provided with a guide sealing strip 17 and a heat insulation cotton lining 16 which have sealing effects, so that the valve plate 1 is ensured to accurately fall into the guide sealing strip 17, the sealing performance of a channel opening is reliable, and the heat insulation effect is realized around the channel opening, the back of the upper part of the frame 2 is fixedly connected with a reinforcing rib plate 18 for stabilizing the frame 2, the stability and reliability of the frame 2 are ensured, the outer side surfaces of the upper end and the lower end of the right channel steel at the upper part of the frame 2 are provided with switch marks 9 for prompting the valve plate 1 to move up and down, the opening and closing mark positions correspond to gate valve pointers 9 when the valve plate 1 is in place to move up and down, and an operator can conveniently know the opening and closing running direction of the valve plate 1; the electric driving device 8 is arranged at the bottom of the right side outside the frame 2; one end of the steel wire rope 4 is connected to the lifting lug 6, and the other end of the steel wire rope is connected to a motor of the electric driving device 8 vertically and downwards through the two movable pulleys 3 on the valve plate 1 and the two fixed pulleys 5 on the top of the frame 2 in sequence.

Example two: as shown in fig. 5, 6, 7, and 8, when the smoke passage opening is circular, the valve plate 1 is a rectangular flat plate structure with a semicircular bottom edge, a circular valve passage tube 19 is arranged at the center of the lower portion of the frame 2 and fixed on the channel steel at the two sides of the frame 2 by welding, the circular valve passage tube 19 is formed by rolling a steel plate, the length of the circular valve passage tube is greater than the thickness of the frame 2, the middle portion of the length direction is divided into two halves, the middle gap is matched with the thickness of the valve plate 1, an eight-shaped support rod 20 is arranged below the outer wall of the circular valve passage tube 19, one end of the support rod 20 is fixedly connected with the outer wall of the circular valve passage tube 19, and the other end is fixedly connected to the lower portions of the vertical channel steel at the two sides to form a stable triangular structure with the channel steel, so as to effectively avoid the deformation of the frame 2; when the valve plate door 1 rises and is fully opened, the lower part of the valve plate door is semicircular, two side surfaces of the valve plate 1 can be separated from the sealing pressing strips 7, so that an internal medium is communicated with the outside, if the inside is positive pressure, the internal medium is leaked outwards, if the inside is negative pressure, the external air is permeated inwards, an auxiliary sealing section 21 is fixedly arranged between the upper part of the circular valve channel pipe 19 and the lower part of the frame 2, the auxiliary sealing section 21 consists of two layers of steel plates and heat preservation cotton linings 16 clamped between the two layers of steel plates, the auxiliary sealing section is symmetrically arranged on the front side surface and the rear side surface of the valve plate 1, the height of the auxiliary sealing section 21 is matched with the radius of the semicircle at the lower part of the valve plate 1, the semicircle at the lower part of the valve plate 1 is still remained in the auxiliary sealing section 19 when the valve plate door 1 is fully opened and is not separated from the sealing pressing strips 7 on the support angle steel 14, and thus the leakage of the internal medium and the infiltration of the external air are avoided; the guide sealing strips 17 are uniformly distributed below the inner part of the circular valve channel pipe 19, the valve plate 1 accurately falls into the guide sealing strips 17, so that the channel opening is reliable in sealing performance, and the heat insulation cotton lining 16 is arranged around the outer wall of the circular valve channel pipe 19 and plays a heat insulation role around the channel opening.

The utility model discloses a concrete use does: starting an electric driving device 8, pulling a steel wire rope 4 to move downwards when a motor rotates forwards, pulling a valve plate 1 to move upwards between two positioning channel steels 15 by the steel wire rope 4 through two fixed pulleys 5 and two movable pulleys 3, and stopping the motor from moving until a limiting block 12 through a guide rail angle steel 11, wherein the gate valve is in a state of opening a channel opening at the moment; when the motor rotates reversely, the steel wire rope 4 is loosened, the valve plate 1 drives the steel wire rope 4 to fall through the two fixed pulleys 5 and the two movable pulleys 3 by means of the gravity of the valve plate, the steel wire rope falls between the guide sealing strips 17 at the bottom of the frame 2, the passage opening is closed, and the gate valve is in a state of closing the passage opening; if the motor is automatically locked and does not rotate during power failure, the valve plate 1 stops moving temporarily, and the safety of an operation site is ensured.

The detailed parts of the utility model are not prior art, the common general knowledge of the specific structures and characteristics of the embodiments is not described, and the same similar parts can be referred to each other. The utility model discloses a simple structure, convenient operation has improved work efficiency greatly, and is effectual at this enterprise's application, the suggestion is promoted.

Claims

1. The utility model provides a novel gate valve, includes valve plate (1), frame (2), movable pulley (3), wire rope (4), fixed pulley (5), lug (6), sealing strip (7) and electric drive device (8), characterized by: the valve plate (1) is arranged in the frame (2), the upper edge of the valve plate is fixedly connected with the two movable pulleys (3), and the end surfaces of the two sides of the upper edge are respectively and fixedly connected with the sealing pressing strips (7); the frame (2) is of a rectangular frame structure, the rectangular frame is composed of channel steel and is fixed together by welding, horizontally symmetrical connecting angle steel (13) is arranged on the outer sides of the middle parts of two vertical channel steel of the frame (2) respectively, the connecting angle steel (13) is fixed on the outer side surfaces of the two vertical channel steel through bolts, the frame (2) is divided into an upper part and a lower part, two fixed pulleys (5) are arranged on the right side of the top of the upper part of the frame (2) side by side and are fixed on the channel steel through bolts, a lifting lug (6) is fixedly connected on the left side, and the lower part of the frame (2) is arranged as a square valve channel interface; the electric driving device (8) is arranged at the bottom of the right side outside the frame (2); one end of the steel wire rope (4) is connected to the lifting lug (6), and the other end of the steel wire rope is vertically and downwards connected to a motor of the electric driving device (8) through two movable pulleys (3) on the valve plate (1) and two fixed pulleys (5) at the top of the frame (2) in sequence.

2. The novel gate valve as claimed in claim 1, wherein: the inner sides of the connecting angle steels (13) are respectively fixedly connected with two horizontally symmetrical supporting angle steels (14) through bolts, a gap is reserved between the two supporting angle steels (14), and the horizontal steel plates of the supporting angle steels (14) are respectively fixedly connected with two symmetrically arranged positioning channel steels (15) through bolts.

3. The novel gate valve as claimed in claim 2, wherein: the gap between the two supporting angle steels (14) is larger than the thickness of the valve plate (1), and the bottoms of the two supporting angle steels (14) are fixedly connected with heat-insulating cotton linings (16) with the heat-insulating function; the distance between the two positioning channel steels (15) is matched with the sum of the valve plate (1) and the sealing pressing strips (7) fixed on the two sides of the valve plate.

4. The novel gate valve as claimed in claim 1, wherein: the inner sides of two vertical channel steels on the upper part of the frame (2) are respectively provided with a group of vertically symmetrical guide rail angle steels (11) with guiding functions, the guide rail angle steels (11) are fixedly connected with the channel steels, the positions of the guide rail angle steels (11) are corresponding to the positions of the valve plates (1) in the frame (2), and the gaps between every two groups of guide rail angle steels (11) are matched with the thickness of the valve plates (1).

5. The novel gate valve as claimed in claim 1, wherein: the inner sides of two vertical channel steels on the upper part of the frame (2) and the tops corresponding to the guide rail angle steels (11) are respectively provided with a limiting block (12), the limiting blocks (12) are fixed on the channel steels through bolts, and the heights of the limiting blocks (12) are matched with the upward running stroke of the valve plate (1).

6. The novel gate valve as claimed in claim 1, wherein: the steel channel at the bottom of the frame (2) is symmetrically provided with a guide sealing strip (17) with a sealing function and a heat insulation cotton lining (16) with a heat insulation function, and the back of the upper part of the frame (2) is fixedly connected with a reinforcing rib plate (18) for stabilizing the frame.

7. The novel gate valve as claimed in claim 1, wherein: the valve plate (1) is of a square flat plate structure, the valve plate (1) is arranged between two support angle steels (14), and the valve plate (1) pulls the movable pulley (3) to slide up and down between the support angle steels (14) through a steel wire rope (4).

8. The novel gate valve as claimed in claim 1, wherein: the valve plate (1) is of a rectangular flat plate structure with a semicircular bottom edge, a circular valve channel pipe (19) is arranged at the center of the lower portion of the frame (2) and fixed on channel steel on the two sides of the frame (2) in a welding mode, the circular valve channel pipe (19) is formed by rolling steel plates, the length of the circular valve channel pipe is larger than the thickness of the frame (2), the middle of the length direction is divided into two halves, a middle gap is matched with the thickness of the valve plate (1), supporting rods (20) in a symmetrical 'eight' shape are arranged below the outer wall of the circular valve channel pipe (19), one end of each supporting rod (20) is fixedly connected with the outer wall of the circular valve channel pipe (19), and the other end of each supporting rod is fixedly connected to the lower portions of the vertical channel steel on the two sides.

9. The novel gate valve as claimed in claim 8, wherein: the upper portion of circular valve passageway pipe (19) and frame (2) between the lower part set up supplementary seal section (21), supplementary seal section (21) comprise two-layer steel sheet and the cotton lining of heat preservation (16) of clamp between two-layer steel sheet, the symmetrical arrangement is in the front and back both sides face of valve board (1), the height and the semicircular radius phase-match in valve board (1) lower part of supplementary seal section (21), the inside below equipartition of circular valve passageway pipe (19) sets up symmetrical direction sealing strip (17), set up the cotton lining of heat preservation (16) around the outer wall of circular valve passageway pipe (19).

10. The novel gate valve as claimed in claim 1, wherein: the right side edge of the upper part of the valve plate (1) is fixedly connected with a gate valve pointer (9) for prompting an operator to open and close the valve plate (1); and switch marks (10) for prompting the valve plate (1) to move up and down are arranged on the outer side surfaces of the upper end and the lower end of a right channel steel on the upper part of the frame (2), and the positions of the switch marks correspond to gate valve pointers (9) when the valve plate (1) moves up and down in place.