CN205991503U - A kind of flue damper plate valve - Google Patents

Abstract

A flue gate valve, comprising a frame body, a gate plate accommodated in the frame body, a gate opening is opened on the upper end of the frame body, guide rails matching the gate plate are recessed on the inner side of the frame body, and the gate plate passes through the gate Accommodated in the frame, the side of the gate is set in the guide rail, and can move up and down along the guide rail. The inner side of the frame is provided with a sealing mechanism at the guide rail. sheet group, the other ends of the two elastic metal sheet groups are respectively held against the two sides of the flashboard. The flue gate valve described in the utility model is provided with a ceramic carbon fiber material seal at the upper end of the gate, and a sealing mechanism is provided in the guide rail to ensure the sealing between the gate and the frame, and has a long service life, prevents leakage, and ensures Safety of production; on both sides of the ram, set multiple pulley blocks that fit the side of the ram to prevent the ram from being deformed due to temperature changes, and ensure the flexible opening and closing of the ram without blocking.

Description

A flue gate valve

technical field

The utility model relates to the field of sealing devices, in particular to a flue gate valve.

Background technique

In the electric power, metallurgy, petrochemical industries, etc., large-diameter gate valves are often used to open and close the flue. However, during the work process, the gate valve is not closed tightly and the sealing performance is not high, and it is easy to leak harmful gases, causing environmental pollution. Ecological pollution will pose a danger to human safety in the process of production and maintenance.

Utility model content

In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a flue gate valve, in which a sealing mechanism is provided in the guide rail to ensure the sealing between the gate and the frame.

In order to solve the above problems, the technical scheme adopted in the utility model is as follows:

A flue gate valve, comprising a frame body and a gate plate accommodated in the frame body, a gate opening is opened on the upper end of the frame body, and guide rails matching the gate plate are recessed on the inner side of the frame body, so that The gate is accommodated in the frame through the gate, the side of the gate is set in the guide rail, and can move up and down along the guide rail, the inside of the frame is also provided with a sealing mechanism at the guide rail, and the sealing mechanism includes There are two elastic metal sheet groups, one end of which is respectively fixed on both sides of the guide rail, and the other ends of the two elastic metal sheet groups are held against two opposite sides of the gate respectively.

Further, the group of elastic metal sheets is multi-layered stainless steel sheets fixed together.

Further, the frame body is provided with an upper sealing device on the upper end of the gate, and the upper sealing device includes a sealing block fixedly arranged on the upper end of the frame body, and a receiving groove communicating with the gate is opened on the sealing block, and the gate The plate is accommodated in the frame through the receiving groove, and the two sides of the gate plate are filled with sealing packing in the receiving groove.

Further, the upper sealing device also includes a pressing plate arranged on the upper end of the sealing block, a protrusion matching the receiving groove protrudes in the middle of the pressing plate, both ends of the pressing plate are connected with the sealing block through adjusting bolts, and the protrusion It can squeeze the sealing packing, so that the sealing between the sealing packing and the gate plate is tight.

Further, the sealing packing is made of ceramic carbon fiber material.

Further, the sealing mechanism is also arranged on the frame at the lower end of the gate, and one ends of the two elastic metal sheet groups are respectively fixed on the frames on both sides of the gate, and the other ends are respectively held against two opposite sides of the gate. side.

Further, the frame body is erected with a plurality of pulley blocks arranged on both sides of the gate, the pulley block includes a support shaft erected on the frame body, and a plurality of pulleys sleeved on the support shaft, the gate plate The two sides of the pulley fit together.

Further, the pulley blocks are set opposite to each other, and the two opposite pulley blocks are located on the same horizontal plane.

Further, it also includes a driving mechanism fixedly arranged on the upper end of the frame body, the driving mechanism includes a screw rod, and a connecting piece fixedly arranged on the upper end of the gate plate, the connecting piece is provided with an internal thread matching the screw rod, The screw rod is rotatably connected in the connecting piece.

Compared with the prior art, the utility model has the beneficial effect that: a flue gate valve described in the utility model is provided with a ceramic carbon fiber material seal at the upper end of the gate, and a sealing mechanism is provided in the guide rail to ensure the gap between the gate and the frame. The tightness between the gates, long service life, prevent leakage, and ensure production safety; multiple pulley blocks that fit the sides of the gate are arranged on both sides of the gate to prevent the gate from being deformed due to temperature changes and ensure that the gate is opened. Close flexible, non-blocking.

Description of drawings

Fig. 1 shows the schematic diagram of a kind of flue gate valve described in the utility model;

Fig. 2 shows the sectional view of Fig. 1 along line A-A;

Fig. 3 shows the sectional view of Fig. 2 along line B-B;

Figure 4 shows an enlarged view at C in Figure 2;

FIG. 5 shows an enlarged view at D in FIG. 3 .

Among them, 1 is the frame body, 11 is the gate, 12 is the guide rail, 13 is the pulley block, 131 is the support shaft, 132 is the pulley, 14 is the upper sealing device, 141 is the sealing block, 142 is the pressure plate, 143 is the storage tank, 144 is Seal packing, 145 is protrusion, 15 is sealing mechanism, 151 is fixture, 152 is elastic sheet metal group, 2 is flashboard, 3 is driving mechanism, 31 is screw mandrel, 32 is connector, and 33 is fixed frame.

detailed description

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.

As shown in Figure 1-5, a flue gate valve described in the utility model includes a frame body 1, a gate plate 2 accommodated in the frame body 1, and a driving mechanism 3 fixedly arranged on the upper end of the frame body 1 . The upper end of the frame body 1 is provided with a gate 11, the bottom end of the inner side of the frame body 1 is provided with a sealing groove (not shown) that matches the gate plate 2, and the inner side of the frame body 1 is concavely provided with a The gate 2 is matched with the guide rail 12 , the gate 2 is accommodated in the frame 1 through the gate 11 , the side of the gate 2 is arranged in the guide rail 12 , and can move up and down along the guide rail 12 .

As shown in FIG. 2 , the frame body 1 is erected with a plurality of pulley blocks 13 arranged on both sides of the gate plate 2 , and the pulley blocks 13 are arranged oppositely in pairs, and the two opposite pulley blocks 13 are located on the same horizontal plane. The pulley block 13 includes a support shaft 131 erected on the frame body 1 , and a plurality of pulleys 132 sheathed on the support shaft 131 . The flashboard 2 is arranged between two opposite pulley blocks 13 , and the opposite side surfaces of the flashboard 2 are attached to the pulleys 132 . The pulley block 13 is used to guide the direction of movement of the gate 2 and provide support to the side of the gate 2 to prevent the gate 2 from being deformed due to temperature changes, causing the gate 2 to be blocked and inflexible in opening and closing.

As shown in FIG. 4 , the frame body 1 is provided with an upper sealing device 14 on the upper end of the gate 11 for sealing the gate 2 and the gate 11 to prevent smoke from leaking from the gate 11 . The upper sealing device 14 includes a sealing block 141 fixedly arranged on the upper end of the frame body 1 , and a pressing plate 142 arranged on the upper end of the sealing block 141 . The middle of the pressure plate 142 protrudes downwards with a protrusion 145 matching the receiving groove 143, and the pressure plate 142 and the protrusion 145 are provided with a through groove (not shown) that matches the gate plate 2. The sealing The block 141 is provided with a receiving groove 143 communicating with the gate 11 and the through groove, and the gate plate 2 is accommodated in the frame body 1 through the through groove and the receiving groove 143 . The housing groove 143 is filled with sealing packing 144 on both sides of the gate 2 , and the protrusion 145 squeezes the sealing packing 144 . Both ends of the pressure plate 142 are connected to the sealing block 141 by adjusting bolts (not shown in the figure), and the adjustment bolts can adjust the height of the pressure plate 142. When the sealing packing 144 is worn, the height of the pressure plate 142 is adjusted, and the protrusion 145 moves downward. Squeeze the reverse sealing packing 144 so that the seal between the sealing packing 144 and the gate plate 2 is tight. In this embodiment, the sealing filler 144 is a ceramic carbon fiber material, which has the characteristics of high density, strong impact resistance, good friction resistance, certain flexibility, and long service life.

As shown in Figure 5, a sealing mechanism 15 is provided inside the frame body 1, and the sealing mechanism 15 includes two fixing pieces 151, and two elastic metal sheet groups 152 respectively fixed on the fixing pieces 151, and the two fixing pieces 151 are fixed on both sides of the guide rail 12 respectively. One ends of the two elastic metal sheet groups 152 are respectively fixed on the two fixing parts 151, and the other ends are held against the two sides of the gate plate 2 respectively, and the elastic metal sheet groups 152 are deformed to generate elastic force so that the elastic metal sheet groups 152 are attached to the gate plate 2. close tightly to prevent smoke from leaking from track 12. In this embodiment, the elastic metal sheet group 152 is three layers of stainless steel sheets fixed together, which can be more strongly supported on the gate plate 2 , with better sealing performance, corrosion resistance, and high temperature resistance. The flashboard 2 is made by finishing and grinding, which ensures the installation accuracy and tightness of the flashboard 2 and the track 12 .

As shown in Figure 4, preferably, the inner side of the frame 1 is also provided with a sealing mechanism 15 at the lower end of the gate 11, and the fixing member 151 is fixed on the frame 1 on both sides of the gate 11, further ensuring that the gate 2 and the tightness between gate 11.

The driving mechanism 3 includes a fixed frame 33 fixed above the frame body 1 , a screw rod 31 rotatably connected to the fixed frame 33 , and a connecting piece 32 fixedly arranged on the upper end of the shutter 2 . The connecting piece 32 is provided with an internal thread that matches the screw rod 31, and the screw rod 31 is rotatably connected in the connecting piece 32, and the rotating screw rod 31 can make the connecting piece 32 drive the shutter 2 to move up and down along the screw rod 31 , to achieve the effect of opening and closing gate 2.

A flue gate valve described in the utility model is provided with a ceramic carbon fiber material seal on the upper end of the gate 11, and a sealing mechanism 15 is provided in the guide rail 12 to ensure the sealing between the gate 2 and the frame body 1, and has a long service life. Prevent leakage and ensure the safety of production; on both sides of the gate 2, a plurality of pulley blocks 13 that fit the sides of the gate 2 are arranged to prevent the gate 2 from being deformed due to temperature changes and ensure the flexible opening and closing of the gate 2. non-blocking.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and ideas described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims (9)

1. A flue gate valve, comprising a frame (1), a gate (2) accommodated in the frame (1), characterized in that: the upper end of the frame (1) is provided with a gate (11) The inner side of the frame (1) is recessed with a guide rail (12) matching the gate (2), and the gate (2) is accommodated in the frame (1) through the gate (11) Inside, the side of the shutter (2) is set in the guide rail (12), and can move up and down along the guide rail (12), and the inner side of the frame (1) is also provided with a sealing mechanism at the guide rail (12) (15), the sealing mechanism (15) includes two elastic metal sheet groups (152) whose one ends are respectively fixed on both sides of the guide rail (12), and the other ends of the two elastic metal sheet groups (152) hold against the On two opposite sides of the flashboard (2). 2. A flue gate valve according to claim 1, characterized in that: the elastic metal sheet group (152) is a multi-layered stainless steel sheet fixed together. 3. A flue gate valve according to claim 1, characterized in that: the frame (1) is provided with an upper sealing device (14) at the upper end of the gate (11), and the upper sealing device (14) ) includes a sealing block (141) fixedly arranged on the upper end of the frame body (1), the sealing block (141) is provided with a receiving groove (143) communicating with the gate (11), and the gate (2) runs through The accommodation groove (143) is accommodated in the frame body (1), and the two sides of the shutter (2) are filled with sealing packing (144) in the accommodation groove (143). 4. A flue gate valve according to claim 3, characterized in that: the upper sealing device (14) further comprises a pressing plate (142) arranged on the upper end of the sealing block (141), and the pressing plate (142) ) is provided with a protrusion (145) that matches the receiving groove (143), and the two ends of the pressure plate (142) are connected with the sealing block (141) through adjusting bolts, and the protrusion (145) can be squeezed and sealed The packing (144) makes the sealing between the sealing packing (144) and the flashboard (2) tight. 5. A flue gate valve according to claim 3 or 4, characterized in that: the sealing packing (144) is made of ceramic carbon fiber material. 6. A flue gate valve according to claim 1, characterized in that: the sealing mechanism (15) is also arranged on the frame (1) at the lower end of the gate (11), and the two elastic metal sheets One end of the group (152) is respectively fixed on the frames (1) on both sides of the gate (11), and the other end is held against two opposite sides of the gate (2). 7. A flue gate valve according to claim 1, characterized in that: the frame (1) is provided with a plurality of pulley blocks (13) arranged on both sides of the gate, and the pulley blocks (13 ) includes a support shaft (131) erected on the frame (1), and a plurality of pulleys (132) sleeved on the support shaft (131), the two sides of the gate (2) and the pulley (132) fit together. 8 . A flue gate valve according to claim 7 , characterized in that: the pulley blocks ( 13 ) are arranged oppositely in pairs, and the two opposite pulley blocks ( 13 ) are located on the same horizontal plane. 9. A flue gate valve according to claim 1, characterized in that: it also includes a driving mechanism (3) fixedly arranged on the upper end of the frame body (1), and the driving mechanism (3) includes a screw rod ( 31), and the connector (32) fixedly arranged on the upper end of the gate (2), the connector (32) is provided with an internal thread matched with the screw rod (31), and the screw rod (31) rotates Connected in the connector (32).