Electric double-plug type gate valve for flue gas pipeline

Abstract

The utility model relates to the technical field of flue gas pipeline valves, in particular to an electric double-plug type gate valve for a flue gas pipeline, which comprises a valve body frame, an on-off plate, an auxiliary sealing cross beam, an adjusting mechanism and a driving mechanism which are arranged in the valve body frame, and the adjusting mechanism and the driving mechanism are connected with the on-off plate. The on-off plate piece comprises two groups of insertion plates which are oppositely arranged in the valve body frame; the auxiliary sealing cross beam is transversely mounted on the valve body frame; the adjusting mechanism comprises a positioning plate installed on the auxiliary sealing cross beam, and compared with an existing structure which adopts two sets of independent driving devices to control insertion plates at the two ends to move correspondingly, only one telescopic air cylinder serves as the driving mechanism, the number of the driving devices is reduced, the overall cost of equipment and the follow-up debugging and maintenance cost are reduced, and the service life of the equipment is prolonged. Meanwhile, the on-off plate piece comprises a sealing interlayer which is assembled on the inserting plate and attached to the auxiliary sealing cross beams at the upper end and the lower end, the sealing effect is enhanced, and smoke leakage is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to flue gas pipeline valve technical field, concretely is a kind of electric double insertion type gate valve for flue gas pipeline. BACKGROUND

[0002] Electric double insertion type gate valve for flue gas pipeline is a kind of equipment specially used to control the on-off and flow of flue gas in flue gas pipeline.

[0003] At present, the existing electric double insertion type gate valve for flue gas pipeline usually adopts two independent driving devices to control the movement of two end gates, this structure can realize the opposite movement of gate to control the on-off of flue gas pipeline, but there is certain defect, i.e. the use of two independent driving devices, which greatly increases the overall cost of equipment, not only including equipment procurement cost, but also involving subsequent installation, debugging and maintenance cost, therefore, the utility model provides an electric double insertion type gate valve for flue gas pipeline to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an electric double insertion type gate valve for flue gas pipeline to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: an electric double insertion type gate valve for flue gas pipeline, comprising valve body frame, the valve body frame is equipped with on-off plate piece, auxiliary sealing crossbeam, and adjusting mechanism and driving mechanism connected with on-off plate piece, the on-off plate piece includes two groups of gates oppositely arranged in valve body frame;The auxiliary sealing crossbeam is transversely installed on valve body frame;The adjusting mechanism includes positioning plate installed on auxiliary sealing crossbeam, the positioning plate is movably connected with first connecting rod below through movable peg, the first connecting rod is connected with second connecting rod at both ends respectively, and the second connecting rod is movably connected with the gate at left and right ends;The driving mechanism includes telescopic cylinder, and the output end of telescopic cylinder is connected with one of the gates.

[0006] Preferably, the on-off plate piece further includes sealing partition, the sealing partition is assembled on the gate, and the sealing partition is attached to the auxiliary sealing crossbeam at upper and lower ends respectively.

[0007] Preferably, the insertion interface part of left gate is provided with insertion block, and correspondingly, the insertion interface of right gate is structured with square groove structure matched with the insertion block.

[0008] Preferably, a plurality of through holes are arranged on the positioning plate, and the plurality of through holes are distributed in array on the positioning plate.

[0009] Preferably, the auxiliary sealing crossbeam is installed on the valve body frame through the connecting blocks at both ends, and sealing strips are further arranged at the upper and lower ends of the auxiliary sealing crossbeam.

[0010] Preferably, the telescopic cylinder is provided with a U-shaped clamp block, and the telescopic cylinder can drive one group of the plug-in plates to move in the sliding groove of the valve body frame through the U-shaped clamp block.

[0011] Preferably, the telescopic cylinder is provided with a U-shaped clamp block, and the telescopic cylinder can drive one group of the plug-in plates to move in the sliding groove of the valve body frame through the U-shaped clamp block.

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

[0013] Compared with the prior art, the beneficial effects of the utility model are: BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model.

[0015] Figure 2 It is another view structure schematic view of the utility model.

[0016] Figure 3 It is a plug-in plate installation structure schematic view of the utility model.

[0017] Figure 4 It is an auxiliary sealing crossbeam structure schematic view of the utility model.

[0018] In the drawing: 1, valve body frame; 11, sliding groove; 2, on-off plate; 21, plug-in plate; 22, sealing partition layer; 23, plug-in block; 3, auxiliary sealing crossbeam; 31, sealing strip; 32, connecting block; 4, adjusting mechanism; 41, positioning plate; 411, movable bolt; 412, through hole; 42, first connecting rod; 43, second connecting rod; 5, telescopic cylinder; 51, U-shaped clamp block; 52, controller. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer toFigures 1 to 4 The utility model provides a technical scheme: a kind of electric double plug-in type gate valve for flue gas pipeline, including valve body frame 1, cut-off plate 2, auxiliary sealing crossbeam 3 are equipped in valve body frame 1, and with the adjusting mechanism 4 of cut-off plate 2 connection, driving mechanism, cut-off plate 2 includes two groups of plug-in plate 21 being oppositely arranged in valve body frame 1;Auxiliary sealing crossbeam 3 is transversely installed on valve body frame 1;Adjusting mechanism 4 includes locating plate 41 installed on auxiliary sealing crossbeam 3, locating plate 41 is movably connected with the first connecting rod 42 below by movable peg 411, and the first connecting rod 42 two ends are connected with second connecting rod 43 respectively, and second connecting rod 43 is movably connected with plug-in plate 21 at left and right ends;Driving mechanism includes telescopic cylinder 5, and telescopic cylinder 5 output end is connected with one group of plug-in plate 21, compared with the structure that the present adoption two independent driving devices respectively control two end plug-in plate 21 movement, the present application only passes through one telescopic cylinder 5 as driving mechanism, reduces the number of driving device, reduces the overall cost of equipment, and subsequent debugging and maintenance cost.

[0021] Please refer to Figures 1 to 4 , cut-off plate 2 further includes sealing interlayer 22, sealing interlayer 22 is assembled on plug-in plate 21, and sealing interlayer 22 is attached with auxiliary sealing crossbeam 3 at its upper and lower ends respectively, sealing interlayer 22 is closely attached with auxiliary sealing crossbeam 3, can form double sealing structure between plug-in plate 21 and auxiliary sealing crossbeam 3, effectively fill the gap between plug-in plate 21 and auxiliary sealing crossbeam 3, prevent flue gas from leaking from these gaps.

[0022] Please refer to Figures 1 to 4 , the plug-in interface part of left plug-in plate 21 is provided with plug-in block 23, and correspondingly, the plug-in interface of right plug-in plate 21 is configured with the rectangular groove structure matched with plug-in block 23, by the close cooperation of plug-in block 23 and rectangular groove, certain external force and pressure can be resisted, the connection strength between the two plug-in plates 21 is enhanced, so that the device can still maintain stable structure when facing flue gas pressure change or external vibration, and is not easy to loosen or damage.

[0023] Please refer to Figures 1 to 4 , a plurality of through holes 412 are formed on the locating plate 41, and the plurality of through holes 412 are arranged in an array on the locating plate 41, when the flue gas flows in the pipeline, if the blocking area of the locating plate 41 is large, the resistance of the flue gas flow will be increased, the existence of the through holes 412 reduces the blocking of the flue gas by the locating plate 41, so that the flue gas can flow more smoothly, the pressure loss of the airflow in the pipeline is reduced, which helps to improve the flue gas emission efficiency and reduce energy consumption.

[0024] Please refer to Figures 1 to 4The auxiliary sealing crossbeam 3 is installed on the valve body frame 1 through the connecting blocks 32 at both ends, and the sealing strips 31 are arranged at the upper and lower ends of the auxiliary sealing crossbeam 3, which can be tightly attached to the sealing layers 22 in the on-off plate 2, and can effectively fill the gap between the on-off plate 21 and the valve body frame 1 when the on-off plate 21 moves to the closed position, thereby reducing the leakage of flue gas and improving the sealing performance of the device.

[0025] Please refer to Figures 1 to 4 The output end of the telescopic air cylinder 5 is provided with a U-shaped clamp block 51, and the telescopic air cylinder 5 can drive one group of on-off plates 21 to move in the sliding groove 11 of the valve body frame 1 through the U-shaped clamp block 51, and the U-shaped clamp block 51 can provide stable support and guidance for the on-off plate 21 when driving the on-off plate 21 to move, and can limit the shaking and deviation of the on-off plate 21 when the on-off plate 21 moves in the sliding groove 11, so as to ensure the stable movement of the on-off plate 21 along the direction of the sliding groove 11, thereby improving the stability and reliability of the on-off plate 21 valve, and helping to maintain good sealing performance.

[0026] In use, the controller 52 integrated on the telescopic air cylinder 5 is used to control the on-off state of the flue gas pipeline, and the controller 52 is integrated with an external automatic system to receive a remote control signal, wherein the connection technology is a mature existing technology, and details are not described herein, when it is necessary to change the on-off state of the flue gas pipeline, the controller 52 starts the telescopic air cylinder 5, and the telescopic air cylinder 5 starts to work, and the telescopic action of the output end drives the on-off plate 21 connected thereto to move in the sliding groove 11 of the valve body frame 1, and in the above movement process of the on-off plate 21, the first connecting rod 42 connected with the on-off plate 21 through the second connecting rod 43 also moves, since the first connecting rod 42 is movably connected with the positioning plate 41 mounted on the auxiliary sealing crossbeam 3 through the movable bolt 411, and a plurality of through holes 412 are arranged on the positioning plate 41 in an array, the movement of the first connecting rod 42 drives the other group of on-off plates 21 to move correspondingly, and in the movement process of the two groups of on-off plates 21, the sealing layers 22 assembled on the on-off plates 21 are always attached to the upper and lower auxiliary sealing crossbeams 3, and the sealing strips 31 at the upper and lower ends of the auxiliary sealing crossbeams 3 also play a role in enhancing the sealing, when the on-off plate 21 moves to the predetermined position, the plug-in block 23 at the plug-in interface part of the left on-off plate 21 is plugged into the rectangular groove structure at the plug-in interface of the right on-off plate 21, so as to further ensure the sealing and stability between the on-off plates 21, and the on-off state of the flue gas pipeline and good sealing effect are realized.

[0027] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An electric double-plug plug valve for flue gas ducts, comprising a valve body frame (1), a switching plate (2), an auxiliary sealing beam (3), an adjusting mechanism (4) and a driving mechanism connected with the switching plate (2) arranged in the valve body frame (1), characterized in that: the switching plate (2) comprises two groups of plug plates (21) arranged oppositely in the valve body frame (1); the auxiliary sealing beam (3) is transversely arranged on the valve body frame (1); the adjusting mechanism (4) comprises a positioning plate (41) arranged on the auxiliary sealing beam (3), the positioning plate (41) is movably connected with a first connecting rod (42) below through a movable bolt (411), the first connecting rod (42) is connected with a second connecting rod (43) at both ends, and the second connecting rod (43) is movably connected with the plug plates (21) at both ends; the driving mechanism comprises a telescopic cylinder (5), and an output end of the telescopic cylinder (5) is connected with one of the plug plates (21). The switching plate (2) further comprises a sealing partition layer (22) arranged on the plug plate (21), and the sealing partition layer (22) is attached to the auxiliary sealing beams (3) at both ends. The plug interface part of the left plug plate (21) is provided with a plug block (23), and a rectangular groove structure matched with the plug block (23) is arranged at the plug interface of the right plug plate (21). The positioning plate (41) is provided with a plurality of through holes (412) arranged in an array on the positioning plate (41). The auxiliary sealing beam (3) is arranged on the valve body frame (1) through the connecting blocks (32) at both ends, and the auxiliary sealing beam (3) is further provided with sealing strips (31) at both ends.

2. A motor-operated double-acting plug valve for use in a flue gas duct according to claim 1, characterized in that: The output end of the telescopic cylinder (5) is provided with a U-shaped clamp block (51), and the telescopic cylinder (5) can drive one of the plug plates (21) to move in the sliding groove (11) of the valve body frame (1) through the U-shaped clamp block (51).

3. A motor-operated double-acting plug valve for use in a flue gas duct according to claim 2, characterized in that: The telescopic cylinder (5) is integrated with a controller (52).

4. A motor operated double plug insert valve for use in a flue gas duct according to claim 1, characterized in that: ​ 5. A motor operated double plug insert valve for use in a flue gas duct as defined in claim 1, characterized in that: ​ 6. A motor operated double plug insert valve for use in a flue gas duct as defined in claim 1, characterized in that: ​ 7. A motor-operated double-acting plug valve for use in a flue gas duct according to claim 6, characterized in that: ​

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