Wear-resistant butterfly valve for catalytic device

Abstract

The utility model particularly relates to a wear-resistant butterfly valve for a catalytic device, which comprises a valve body, a valve rod, a driving mechanism and a valve clack, a valve seat is arranged on the valve body, the driving mechanism is arranged on the valve seat, the valve rod sequentially penetrates through the valve seat and the valve body and is integrated with the valve clack, a valve cavity is arranged in the valve body, and the valve clack is arranged in the valve cavity. The driving mechanism drives the valve rod and enables the valve clack to be rotatably arranged in the valve cavity to achieve opening and closing of the valve clack, a heat dissipation mechanism is arranged on the valve seat and comprises an air cooling heat dissipation mechanism and a liquid cooling heat dissipation mechanism, a heat dissipation fan of the air cooling heat dissipation mechanism is installed on the top face of the installation cavity and blows air to heat dissipation fins, and the liquid cooling heat dissipation mechanism is installed on the top face of the installation cavity. And the water-cooling heat dissipation mechanism dissipates heat through the liquid storage cooling box, and the heat dissipation performance is good by combining the water-cooling heat dissipation mechanism and the liquid storage cooling box. The beneficial effects of the utility model are that: can carry out active heat dissipation under the high temperature environment, and the heat dissipation effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a valve technical field, specifically to a kind of wear-resistant butterfly valve for catalytic device. BACKGROUND

[0002] Butterfly valve is a kind of valve by rotating valve stem and simultaneously driving valve plate to rotate to open and close, in the passage of butterfly valve body, valve plate rotates around axis, butterfly valve has smaller flow resistance when completely open.

[0003] When opening between about 15 °~70 °, it can also carry out sensitive flow control, so in the regulation field of large-diameter, butterfly valve has become one of the fastest growing valve varieties in recent ten years due to good flow regulation function and closing sealing characteristics, and use range is very extensive.

[0004] And the variety and quantity of butterfly valve continue to expand, and develop to high temperature, high pressure, large-diameter, high sealing, long life, convenient adjustment and one valve multi-functional direction.

[0005] The fin structure of the butterfly valve for high-temperature flue gas treatment of the environmental protection cremator in the prior utility model application No. 201711054888.7 is in the shape of a circular disc uniformly arranged from top to bottom, and the heat dissipation area is increased to increase the heat dissipation capacity, but it does not have the active heat dissipation capacity in the high-temperature environment. SUMMARY

[0006] The utility model solves the technical problem of the prior art, and provides a wear-resistant butterfly valve for catalytic device, which can actively dissipate heat in a high-temperature environment and has good heat dissipation effect.

[0007] To achieve the above purpose, the following technical scheme is adopted: a wear-resistant butterfly valve for catalytic device, comprising a valve body, a valve stem, a driving mechanism and a valve flap, the valve body is provided with a valve seat, the driving mechanism is arranged on the valve seat, the valve stem passes through the valve seat and the valve body in sequence and is integrally arranged with the valve flap, the valve body is provided with a valve cavity, the driving mechanism drives the valve stem and makes the valve flap rotatably arranged in the valve cavity to realize the opening and closing of the valve flap, the valve body, the valve seat and the valve stem are provided with a heat dissipation mechanism, the heat dissipation mechanism comprises an air-cooled heat dissipation mechanism and a liquid-cooled heat dissipation mechanism, the air-cooled heat dissipation mechanism comprises heat dissipation fins and a heat dissipation fan, an installation cavity is arranged between the valve seat and the valve body, the heat dissipation fins are circumferentially arranged on the outer circumferential surface of the valve stem located in the installation cavity, the heat dissipation fan is installed on the top surface of the installation cavity and blows air to the heat dissipation fins for heat dissipation, the liquid-cooled heat dissipation mechanism comprises a heat conduction pipe wound in a spring shape on the surface of the valve body, and the heat conduction pipe is a hollow structure, the heat conduction pipe is connected with a liquid storage cooling box at both ends, and the liquid storage cooling box is arranged below the valve body and transports cooling liquid into the heat conduction pipe.

[0008] The existing heat dissipation fin is in the shape of a round sheet uniformly arranged from top to bottom, which can only increase the heat dissipation area and cannot achieve active heat dissipation. The heat dissipation fin is arranged in the circumferential direction of the valve rod to increase the heat dissipation area, and the heat dissipation fan is arranged on the top surface of the mounting cavity to actively blow and dissipate heat from the heat dissipation fin. Since the valve disc and the valve rod are arranged integrally, when the valve disc is placed in a high-temperature environment for a long time, the temperature of the valve disc will also be conducted to the valve rod. The heat dissipation fin can be arranged integrally with the valve rod, so that the heat on the valve rod can be conducted away through the heat dissipation fin, and the efficiency of heat dissipation is further increased by the heat dissipation fan for active blowing and heat dissipation, so that the entire valve body can withstand higher temperature and has good working condition adaptability. The driving mechanism can be pneumatic or electric, or can be in the form of pneumatic auxiliary rotating rod to open and close the valve disc. The air cooling heat dissipation mechanism may not have sufficient heat dissipation capacity, so a liquid cooling heat dissipation mechanism is needed to further dissipate heat from the valve body. The heat conducting pipe spirally arranged on the valve body transfers the cooling liquid such as water or other liquids. The liquid storage cooling box is arranged below the valve body and can transport the water cooling liquid. The air cooling heat dissipation mechanism and the water cooling heat dissipation mechanism can simultaneously dissipate heat from the valve rod and the valve body, and the heat dissipation effect is better.

[0009] The wear-resistant butterfly valve for catalytic device can be further provided with: the liquid storage cooling box is connected with one end of the heat conducting pipe through a water pump.

[0010] The above technical scheme increases the water pump, so that no matter which end of the heat conducting pipe the cooling liquid is transported into, the water flow can be clockwise or counterclockwise. The water pump can quickly send the cooling liquid into the heat conducting pipe and quickly cool the valve body through the heat conducting pipe.

[0011] The wear-resistant butterfly valve for catalytic device can be further provided with: the two side surfaces of the heat dissipation fin are provided with a plurality of arc protrusions, and the heat dissipation fan air duct directly blows on the surface of the arc protrusion.

[0012] The above technical scheme provides the irregular shape of the arc protrusion arranged on the two sides of the heat dissipation fin. Since the two sides of the heat dissipation fin are not flat but composed of a plurality of arc protrusions in a wave shape, the heat dissipation area can be increased.

[0013] The wear-resistant butterfly valve for catalytic device can be further provided with: the heat dissipation fan is at least four and arranged on the top surface of the mounting cavity, and the heat dissipation fan air duct directly blows on the arc protrusion surface of the heat dissipation fin on the front, rear, left and right sides of the valve rod.

[0014] The technical scheme is adopted, the heat dissipation fins are circumferentially arranged on the outer circumferential surface of the valve rod, therefore, the heat dissipation fans can be arranged as 4-6, so that the heat dissipation fins of four sides or even six sides can be blown and convected by the 4-6 heat dissipation fans at the same time, the butterfly valve can be quickly cooled on four sides or even six sides when working in a high temperature environment, thereby increasing the overall working condition adaptability of the butterfly valve and being more resistant to high temperature.

[0015] The wear-resistant butterfly valve for catalytic device can be further provided with the arc-shaped convex surface provided with the air guide groove.

[0016] The technical scheme is adopted, the original groove is arranged between every two adjacent arc-shaped convexities, the air guide groove is arranged on the surface of the arc-shaped convexity, so that the contact area between the arc-shaped convexity and the air guide groove is further increased, and the heat dissipation capacity is further increased.

[0017] The wear-resistant butterfly valve for catalytic device can be further provided with the dust screen arranged below the top surface of the mounting cavity, the dust screen is arranged below the heat dissipation fan and fixedly connected with the top surface of the mounting cavity.

[0018] The technical scheme is adopted, the dust screen can prevent a large amount of external dust from entering the heat dissipation fan without affecting the blowing of the heat dissipation fan, so that the heat dissipation fan is prevented from running slowly, the dust screen can effectively protect the heat dissipation fan, and the service life of the heat dissipation fan is increased.

[0019] The wear-resistant butterfly valve for catalytic device can be further provided with the air inlet arranged on the front side or the rear side of the top surface of the mounting cavity.

[0020] The technical scheme is adopted, the air inlet can suck external air through the air inlet when the fan rotates and blow the cold air to the outer surface of the arc-shaped convexity, so that rapid cooling is realized.

[0021] The utility model will be further explained in detail in connection with the drawings and embodiments. DRAWINGS

[0022] Figure 1 It is the overall schematic view of the embodiment of the utility model.

[0023] Figure 2 It is the structural schematic view of the embodiment of the utility model Figure 1 after removing the valve rod, the valve disc and the water-cooled heat dissipation mechanism.

[0024] Figure 3 It is the structural schematic view of the embodiment of the utility model Figure 2 after removing the dust screen.

[0025] Figure 4 It is the structural schematic view of the embodiment of the utility model Figure 1Structure schematic view of middle drive mechanism, valve rod and valve clapper.

[0026] Figure 5 A part enlarged view of the embodiment of the utility model Figure 4

[0027] Figure 6 Structure schematic view of the embodiment of the utility model Figure 2 when using six heat dissipation fans.

[0028] In the figure: 1, valve body; 2, valve rod; 3, drive mechanism; 4, valve clapper; 5, heat dissipation mechanism; 5A, air-cooled heat dissipation mechanism; 5B, water-cooled heat dissipation mechanism; 11, valve cavity; 21, valve seat; 22, installation cavity; 23, dust screen; 51, heat dissipation fin; 52, heat dissipation fan; 221, air inlet; 511, arc-shaped protrusion; 512, air guide groove; 551, heat conduction pipe; 552, liquid storage cooling box; 553, water pump. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely 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.

[0030] Embodiment 1: as Figures 1-5 ​The wear-resistant butterfly valve for a catalytic converter shown includes a valve body 1, a valve stem 2, a drive mechanism 3, and a valve disc 4. A valve seat 21 is provided on the valve body 1, and the drive mechanism 3 is mounted on the valve seat 21. The valve stem 2 passes sequentially through the valve seat 21 and the valve body 1 and is integrally formed with the valve disc 4. A valve cavity 11 is provided inside the valve body 1. The drive mechanism 3 drives the valve stem 2, rotatably positioning the valve disc 4 within the valve cavity 11 to achieve opening and closing of the valve disc 4. A heat dissipation mechanism 5 is provided on the valve seat 21 and the valve stem 2. The heat dissipation mechanism 5 includes an air-cooled heat dissipation mechanism 5A and a liquid-cooled heat dissipation mechanism 5B. The air-cooled heat dissipation mechanism 5A includes heat dissipation fins 51 and a cooling fan 52. An installation cavity 22 is provided between the valve seat 21 and the valve body 1. The heat dissipation fins 51 are circumferentially disposed on the outer circumferential surface of the portion of the valve stem 2 located in the installation cavity 22. The cooling fan 52 is mounted in the installation cavity 22. The top surface of the mounting cavity 22 is equipped with air inlets 221 on the front or rear side of the top surface. By circumferentially arranging heat dissipation fins 51 on the valve stem 2, the heat dissipation area is increased. A cooling fan 52 is installed on the top surface of the mounting cavity 22 to actively dissipate heat from the heat dissipation fins 51. Since the valve disc 4 is integrally formed with the valve stem 2, when the valve disc is placed in a high-temperature environment for a long time, its temperature will also be conducted to the valve stem 2. The heat dissipation fins 51 can be integrally formed with the valve stem 2, allowing the heat on the valve stem 2 to be conducted away through the heat dissipation fins 51. The addition of a cooling fan 52 for active air dissipation further increases the heat dissipation efficiency, enabling the entire valve body to withstand higher temperatures and exhibiting good adaptability to operating conditions. The cooling fan 52 is installed on the top surface of the mounting cavity 22 and blows air onto the heat dissipation fins 51 for heat dissipation. Figures 2-5As shown, the top surface of the mounting cavity 22 is provided with a dust screen 23, which is installed below the heat dissipation fan 52 and fixedly connected with the top surface of the mounting cavity 22. The dust screen 23 can prevent a large amount of external dust from entering the heat dissipation fan 52 while not affecting the blowing of the heat dissipation fan 52, so as to cause the heat dissipation fan 52 to run sluggish. The dust screen 23 can effectively protect the heat dissipation fan 52 and increase the service life of the heat dissipation fan 52. The two side surfaces of the heat dissipation fin 51 are provided with a plurality of arc protrusions 511. The air duct of the heat dissipation fan 52 directly blows on the surface of the arc protrusion 511. The heat dissipation fan 52 is provided with four heat dissipation fans 52 and is arranged on the top surface of the mounting cavity 22. The air duct of the heat dissipation fan 52 directly blows on the surface of the arc protrusion 511 of the heat dissipation fin 51 on the front, rear, left and right sides of the valve stem 2. The arc protrusion 511 is an irregular shape arranged on the two sides of the heat dissipation fin 51. Since the two sides of the heat dissipation fin 51 are not flat but are composed of a plurality of arc protrusions 511 in a wave shape, the heat dissipation area is increased. The surface of the arc protrusion 511 is provided with a wind guide groove 512. The four heat dissipation fans 52 blow on the four sides of the heat dissipation fin 51 at the same time to achieve convective heat dissipation. The butterfly valve can quickly dissipate heat on the four sides of the valve stem 2 when working in a high-temperature environment, thereby increasing the overall working condition adaptability of the butterfly valve and making it more resistant to high temperatures. The wind guide groove 512 corresponding to the air duct is arranged on the surface of the arc protrusion 511, thereby further increasing the contact area between the arc protrusion 511 and the air duct and further increasing the heat dissipation capacity. Figure 1 As shown, the liquid cooling heat dissipation mechanism 5B includes a heat-conducting pipe 551 wound in a spring shape on the surface of the valve body 1. The heat-conducting pipe 551 is a hollow structure. The two ends of the heat-conducting pipe 551 are connected with a liquid storage cooling box 552. The liquid storage cooling box 552 is arranged below the valve body 1 and delivers cooling liquid into the heat-conducting pipe 551. The liquid storage cooling box 552 is connected with one end of the heat-conducting pipe 551 through a water pump 553. Only the air cooling heat dissipation mechanism 5A may not have sufficient heat dissipation capacity, so the liquid cooling heat dissipation mechanism 5B is additionally provided to further dissipate heat from the valve body 1. The heat-conducting pipe 551 spirally arranged on the valve body 1 delivers cooling liquid such as water or other liquids. The liquid storage cooling box 552 is arranged below the valve body 1 and can deliver water cooling liquid. The air cooling heat dissipation mechanism 5A and the water cooling heat dissipation mechanism 5B can simultaneously dissipate heat from the valve stem 2 and the valve body 1, thereby achieving better heat dissipation effect.

[0031] Example 2: as Figures 1-6The illustrated catalytic device wear-resistant butterfly valve, including valve body 1, valve stem 2, drive mechanism 3 and valve 4, the valve body 1 is provided with valve seat 21, the drive mechanism 3 is arranged on the valve seat 21, the valve stem 2 passes through the valve seat 21 and the valve body 1 in turn and is integrally arranged with the valve 4, the valve body 1 is provided with valve cavity 11, the drive mechanism 3 drives the valve stem 2 and makes the valve 4 rotatably arranged in the valve cavity 11 to realize the opening and closing of the valve 4, the valve seat 21 and the valve stem 2 are provided with heat dissipation mechanism 5A, the heat dissipation mechanism 5A includes heat dissipation fin 51 and heat dissipation fan 52, the mounting cavity 22 is arranged between the valve seat 21 and the valve body 1, the front side or the rear side of the top surface of the mounting cavity 22 is provided with air inlet 221, the heat dissipation fin 51 is circumferentially arranged on the outer circumferential surface of the valve stem 2 located in the mounting cavity 22 part, the heat dissipation area is increased by arranging the heat dissipation fin 51 on the circumference of the valve stem 2, the heat dissipation fin 51 is actively blown and cooled by installing the heat dissipation fan 52 on the top surface of the mounting cavity 22, since the valve 4 is integrally arranged with the valve stem 2, when the valve 4 is placed in a high temperature environment for a long time, the temperature of the valve 4 will also be conducted to the valve stem 2, the heat dissipation fin 51 can be integrally arranged with the valve stem 2, so that the heat on the valve stem 2 can be conducted away through the heat dissipation fin 51, and the efficiency of heat dissipation is further increased by increasing the heat dissipation fan 52 for active blowing and cooling, so that the whole valve body can withstand higher temperature, the working condition adaptability is good, the heat dissipation fan 52 is installed on the top surface of the mounting cavity 22 and blows and cools the heat dissipation fin 51, the dust screen 23 is arranged below the top surface of the mounting cavity 22, the dust screen 23 is installed below the heat dissipation fan 52 and is fixedly connected with the top surface of the mounting cavity 22, the dust screen 23 can prevent a large amount of external dust from entering the heat dissipation fan 52 without affecting the blowing of the heat dissipation fan 52, so as to cause the heat dissipation fan 52 to run sluggish, the dust screen 23 can effectively protect the heat dissipation fan 52 and increase the service life of the heat dissipation fan 52, the both sides of the heat dissipation fin 51 are provided with a plurality of arc protrusions 511, the air duct of the heat dissipation fan 52 directly blows on the surface of the arc protrusion 511, and the like Figure 6As shown, the heat dissipation fan 52 is provided with 4 or 6 and arranged on the top surface of the mounting cavity 22, the air duct of the heat dissipation fan 52 directly blows on the four sides or six sides of the valve stem 2 and the surface of the arc-shaped protrusion 511 of the heat dissipation fin 51, the arc-shaped protrusion 511 is irregularly arranged on both sides of the heat dissipation fin 51, because the two sides of the heat dissipation fin 51 are not flat but are composed of a plurality of arc-shaped protrusions 511 in a wave shape to increase the heat dissipation area, the surface of the arc-shaped protrusion 511 is provided with a wind guide groove 512, the four or six heat dissipation fans 52 simultaneously blow on the four sides or six sides of the heat dissipation fin 51 to achieve convective heat dissipation, which can quickly dissipate heat on the four sides of the valve stem 2 when the butterfly valve works in a high temperature environment, thereby increasing the overall working condition adaptability of the butterfly valve and making it more resistant to high temperature, the wind guide groove 512 corresponding to the air duct is arranged on the surface of the arc-shaped protrusion 511 to further increase the contact area between the arc-shaped protrusion 511 and the air duct and further increase the heat dissipation capacity.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application and does not limit the present application, although the foregoing detailed description of the present application, for those skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made in the spirit and principles of the present application, shall be included in the scope of protection of the present application.

Claims

1. A wear-resistant butterfly valve for catalytic device, comprising a valve body (1), a valve rod (2), a driving mechanism (3) and a valve flap (4), a valve seat (21) is arranged on the valve body (1), the driving mechanism (3) is arranged on the valve seat (21), the valve rod (2) passes through the valve seat (21) and the valve body (1) in sequence and is integrally arranged with the valve flap (4), a valve cavity (11) is arranged in the valve body (1), the driving mechanism (3) drives the valve rod (2) and the valve flap (4) is rotatably arranged in the valve cavity to realize opening and closing of the valve flap (4), characterized in that: The valve body (1), the valve seat (21) and the valve stem (2) are provided with a heat dissipation mechanism (5), the heat dissipation mechanism (5) comprises a air-cooled heat dissipation mechanism (5A) and a liquid-cooled heat dissipation mechanism (5B), the air-cooled heat dissipation mechanism (5A) comprises a heat dissipation fin (51) and a heat dissipation fan (52), the valve seat (21) and the valve body (1) are provided with a mounting cavity (22), the heat dissipation fin (51) is circumferentially arranged on the outer circumferential surface of the valve stem (2) located in the mounting cavity (22) portion, the heat dissipation fan (52) is mounted on the top surface of the mounting cavity (22) and blows air to the heat dissipation fin (51) for heat dissipation, the liquid-cooled heat dissipation mechanism (5B) comprises a heat conduction pipe (551) which is wound on the surface of the valve body (1) in a spring shape, and the heat conduction pipe (551) is a hollow structure, the heat conduction pipe (551) is connected with a liquid storage cooling tank (552) at both ends, and the liquid storage cooling tank (552) is arranged below the valve body (1) and transports cooling liquid into the heat conduction pipe (551). ​ 2. The wear-resistant butterfly valve for catalytic device according to claim 1, characterized in that: The liquid storage cooling tank (552) and one end of the heat conduction pipe (551) are connected through a water pump (553).

3. The abrasion resistant butterfly valve for catalytic devices according to claim 1, characterized in that: The two side surfaces of the heat dissipation fin (51) are provided with a plurality of arc protrusions (511), and the air duct of the heat dissipation fan (52) directly blows on the surface of the arc protrusion (511).

4. The abrasion resistant butterfly valve for catalytic devices according to claim 3, characterized in that: The heat dissipation fan (52) is provided as at least four and is arranged on the top surface of the mounting cavity (22), and the air duct of the heat dissipation fan (52) directly blows on the surface of the arc protrusion (511) of the heat dissipation fin (51) on the front, rear, left and right sides of the valve stem (2).

5. A wear resistant butterfly valve for catalytic devices according to claim 3 or 4, characterized in that: The surface of the arc protrusion (511) is provided with a wind guide groove.

6. A wear resistant butterfly valve for catalytic devices according to claim 4, characterized in that: The top surface of the mounting cavity (22) is provided with a dust screen (23) below, and the dust screen (23) is installed below the heat dissipation fan (52) and is fixedly connected with the top surface of the mounting cavity (22).

7. The abrasion resistant butterfly valve for catalytic devices of claim 4, wherein: The front side or the rear side of the top surface of the mounting cavity (22) is provided with an air inlet (221).

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