Y-shaped reversing valve for conveying

Abstract

The utility model relates to a Y-shaped reversing valve for conveying, which comprises a valve body, a channel valve core is rotatably connected in the valve body, and a channel of the channel valve core is a 45-degree bent pipe; a first channel opening, a second channel opening and a third channel opening are formed in the outer side of the valve body, and the included angle between the second channel opening and the third channel opening is 90 degrees. The upper end face of the valve body is connected with an upper end cover, and the lower end face of the valve body is connected with a lower end cover. The upper end cover is connected with a limiting assembly used for limiting rotation of the channel valve element. According to the Y-shaped reversing valve for conveying, the existing defects are overcome, material circulation is smooth, and blockage cannot be formed.

Description

Technical Field

[0001] The utility model relates to a Y-shaped reversing valve for conveying. Background Art

[0002] As an important device for reducing industrial dust pollution and improving resource utilization efficiency, the bulk material conveying system and its supporting equipment have been widely used and developed rapidly in many pillar industries of the national economy such as steel, power, petrochemical, cement, food, and pharmaceutical industries and their subdivisions, and also conform to the concept of the sustainable development view guided by energy conservation and environmental protection.

[0003] The reversing valve is an important material flow reversing device in bulk material conveying systems such as gravity and pneumatic systems, and reversing valves are required in the pneumatic conveying systems of all large polyolefin plants. With the continuous increase and innovation of polyolefin product types, the characteristics of its materials are becoming more and more complex and diverse, and the requirements for reversing are also getting higher and higher.

[0004] The commonly used three-way spherical or plunger reversing valves on the market have a 90° bending angle. When conveying some special materials, such as materials with very small particle size, certain viscosity, and poor fluidity, they are prone to blockage. During the opening and closing process of the valve, the materials are likely to remain in the gap between the valve core and the housing. The long-term retention of materials will accumulate into blocks, affecting the material quality. Therefore, a Y-shaped reversing valve for conveying is proposed to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a Y-shaped reversing valve for conveying, which overcomes the existing defects and enables the material to flow smoothly without blockage.

[0006] The technical solution to achieve the above purpose is: a Y-shaped reversing valve for conveying, including a valve body. A channel valve core is rotatably connected inside the valve body, and the channel of the channel valve core is a 45° elbow. First, second, and third channel openings are respectively provided on the outer side of the valve body, and the included angle between the second channel opening and the third channel opening is 90°. The upper end face of the valve body is connected to an upper end cover, and the lower end face is connected to a lower end cover. A switching drive assembly is connected to the outer side of the upper end cover. A limiting assembly for restricting the rotation of the channel valve core is connected to the upper end cover.

[0007] Preferably, the switching drive assembly includes a pneumatic actuator and a solenoid valve. The pneumatic actuator is connected to the upper end cover, the pneumatic actuator is connected to the channel valve core through a first connecting shaft, and the pneumatic actuator is connected to the solenoid valve.

[0008] Preferably, the limiting component includes an eccentric bolt, an eccentric bolt mounting plate and a positioning cam; the positioning cam is connected to the channel spool; the eccentric bolt mounting plate is connected to the inner side of the upper end cover, and the eccentric bolt is connected to the eccentric bolt mounting plate, and the eccentric bolt is used to limit the positioning cam.

[0009] Preferably, a second connecting shaft is rotatably connected to the lower end cover, and the inner end of the second connecting shaft is connected to the channel spool; a first bearing is provided between the second connecting shaft and the lower end cover.

[0010] Preferably, a second bearing is provided between the first connecting shaft and the upper end cover.

[0011] Preferably, sealing strips are provided at the inner ends of the first channel port, the second channel port and the third channel port.

[0012] Preferably, the sealing strip is made of silicone rubber.

[0013] The beneficial effects of the present utility model are as follows: The Y-shaped reversing valve for conveying of the present utility model adopts a design in which the plunger rotates 135°. Its flow channel is not a straight pipe design, but is assembled by three sections. The middle section is a 45° elbow pipe, and the upper and lower sections are straight pipes, which together form the flow channel of the Y-shaped reversing valve, ensuring precise cooperation between the spool and the valve body after it rotates in place. The conveying channel is smooth and bright, ensuring smooth material flow without blockage, enabling powder and granular media to pass through smoothly, with small fluid resistance and rapid commutation, and it is very easy to complete commutation. The Y-shaped reversing valve body is symmetrical. The special feature compared with other reversing valves is the included angle of the outlet pipeline: 90°. The overall valve body is in a "Y" shape. The main components need to be closely cast, with a solid structure, high strength and not easy to deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view of the Y-shaped reversing valve for conveying of the present utility model;

[0015] Figure 2 is the side view of the Y-shaped reversing valve for conveying of the present utility model;

[0016] Figure 3 is the sectional view of the Y-shaped reversing valve for conveying of the present utility model;

[0017] Figure 4 is the schematic diagram of the first state of the Y-shaped reversing valve for conveying of the present utility model;

[0018] Figure 5 is the schematic diagram of the second state of the Y-shaped reversing valve for conveying of the present utility model.

[0019] In the figure: 1. Valve body; 2. Upper end cover; 3. Pneumatic actuator; 4. Solenoid valve; 6. Eccentric bolt; 7. Eccentric bolt mounting plate; 8. First connecting shaft; 9. Lower end cover; 10. Positioning cam; 11. First bearing; 12. Channel spool; 13. Sealing strip; 15. First channel port; 16. Second channel port; 17. Third channel port; 18. Second connecting shaft; 19. Second bearing. Detailed implementation mode

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] As Figures 1-5 shown, a Y-type reversing valve for conveying includes a valve body 1, a channel spool 12 is rotatably connected inside the valve body 1, and the channel of the channel spool 12 is a 45° elbow; a first channel port 15, a second channel port 16 and a third channel port 17 are respectively opened on the outer side of the valve body 1, and the included angle between the second channel port 16 and the third channel port 17 is 90°; the upper end face of the valve body 1 is connected to the upper end cover 2, the lower end face is connected to the lower end cover 9, and a switching drive assembly is connected to the outside of the upper end cover 2; a limiting assembly for restricting the rotation of the channel spool 12 is connected to the upper end cover 2.

[0023] Specifically, the valve body 1, the upper end cover 2 and the lower end cover 9 can be made of stainless steel and cast aluminum; the channel spool 12 is made of cast aluminum lined with a stainless steel pipe; the positioning cam 10, the first connecting shaft 8 and the second connecting shaft 18 are made of stainless steel; the sealing strip is made of silicone rubber.

[0024] Specifically, the switching drive assembly includes a pneumatic actuator 3 and a solenoid valve 4; the pneumatic actuator 3 is connected to the upper end cover 2, the pneumatic actuator 3 is connected to the channel spool 12 through a first connecting shaft 8; the pneumatic actuator 3 is connected with the solenoid valve 4. The action of the pneumatic actuator 3 is controlled by the switching of the solenoid valve 4, and the action of the pneumatic actuator 3 drives the channel spool 12 to rotate through the first connecting shaft 8 to complete the switching of the channel. A second connecting shaft 18 is rotatably connected to the lower end cover 9, and the inner end of the second connecting shaft 18 is connected to the channel spool 12; a first bearing 11 is provided between the second connecting shaft 18 and the lower end cover 9. A second bearing 19 is provided between the first connecting shaft 8 and the upper end cover 2. Sealing strips 13 are provided at the inner ends of the first channel port 15, the second channel port 16 and the third channel port 17. The sealing strip 13 is made of silicone rubber.

[0025] Specifically, the limiting assembly includes an eccentric bolt 6, an eccentric bolt mounting plate 7 and a positioning cam 10; the positioning cam 10 is connected to the channel spool 12; the eccentric bolt mounting plate 7 is connected to the inner side of the upper end cover 2, and the eccentric bolt 6 is connected to the eccentric bolt mounting plate 7, and the eccentric bolt 6 is used to limit the positioning cam 10.

[0026] As Figure 4 , 5 shown, materials enter through the first channel port 15 on the valve body 1, and the second channel port 16 and the third channel port 17 are material outlets. As Figure 4 , 5 shown are two working states of the Y-type reversing valve. As Figure 4 is the state where the left channel is closed and the right channel is open. At this time, the flow port of the channel spool 12 is biased to the right, so that the material flows out from the right side. As Figure 5 is the state where the right channel is closed and the left channel is open. At this time, the flow port of the channel spool 12 is biased to the left, so that the material flows out from the left side.

[0027] Specifically, when it is necessary to switch the flow direction of the valve outlet, the solenoid valve 4 issues an instruction to control the pneumatic equipment in the air circuit to switch the air inlet and outlet directions of the pneumatic actuator 3 to complete the flow direction switching. As Figure 4 the state changes to Figure 5 the state, the channel spool 12 rotates counterclockwise by 135°, and vice versa, it rotates clockwise by 135°.

[0028] Specifically, the Y-type reversing valve body is symmetrical, the included angle between the outlet pipelines of the second channel port 16 and the third channel port 17 is 90°, and the shape is approximately "Y" when viewed from the front. It is suitable for the scenario where the pipeline layout is symmetrical with respect to the center line of the valve body, and this scenario is common in the pneumatic conveying system. The valve body and the valve core are precision cast, with a strong structure, high strength and not easy to deform, beautiful appearance, and its overall structure is more compact, which is convenient for installation and use;

[0029] Specifically, a positioning cam 10 is designed on the channel valve core 12, which is used for reversing positioning when the channel valve core 12 rotates. An eccentric bolt mounting plate 7 is installed on the end cover on the same side of the positioning cam 10. The positioning cam 10 rotates simultaneously with the channel valve core 12. The eccentric bolt mounting plate 7 adjusts the rotation position of the positioning cam 10 by adjusting the eccentric bolt 6, and the precise reversing positioning of the Y-type reversing valve is completed. The precise positioning of the channel valve core 12 ensures smooth flow of materials without blockage;

[0030] Specifically, the Y-type reversing valve has a plunger-type valve core design. After the Y-type reversing valve is assembled, there is enough clearance between the valve body and the valve core, and the inner wall of the valve body and the surface of the valve core are polished. There will be no internal material accumulation during the operation of the Y-type reversing valve, so that the Y-type reversing valve can operate safely and stably for a long time;

[0031] Specifically, the flow channel of the valve core of the Y-type reversing valve is different from that of other reversing valves. Its flow channel is not a straight pipe design, but is assembled from three sections. The middle section is a 45° elbow, and the upper and lower sections are straight pipes, which together form the flow channel of the Y-type reversing valve, ensuring that the valve core is accurately matched with the valve body after it is turned into place, achieving smooth material flow and achieving an ideal reversing effect.

[0032] This Y-type reversing valve for conveying adopts a design in which the plunger rotates 135°. Its flow channel is not a straight pipe design, but is assembled from three sections. The middle section is a 45° elbow, and the upper and lower sections are straight pipes, which together form the flow channel of the Y-type reversing valve. This ensures that the valve core is precisely matched with the valve body after it is turned into place, and the conveying channel is smooth and clean, ensuring smooth material flow without blockage, allowing powder and granular media to pass smoothly, with low fluid resistance and rapid reversal, and it is easy to complete the reversal. The Y-type reversing valve body is symmetrical, which is special compared to other reversing valves. The outlet pipeline angle is 90°, and the overall valve body is in a "Y" shape. The main components must be tightly cast, with a solid structure, high strength and not easy to deform.

[0033] This Y-type reversing valve for conveying has smooth material flow without blockage, allowing powder and granular media to pass smoothly, with low fluid resistance and rapid reversal, making it easy to switch the material flow direction. The equipment operates stably, and the main components must be tightly cast, with a solid structure, high strength and not easy to deform, to ensure efficient operation reliability. The production efficiency is high, and the production schedule can be flexibly controlled according to project requirements. The supporting accessories are assembled and debugged by the factory itself, and the later installation and maintenance are convenient and fast. It completely replaces complete sets of purchased products, saving 20-30% of the overall cost, with considerable economic benefits.

[0034] ​The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A Y-type reversing valve for conveying, characterized in that: The invention comprises a valve body (1), wherein a channel valve core (12) is rotatably connected inside the valve body (1), and the channel of the channel valve core (12) is a 45° elbow; a first channel opening (15), a second channel opening (16) and a third channel opening (17) are respectively provided on the outer side of the valve body (1), and the angle between the second channel opening (16) and the third channel opening (17) is 90°; the upper end surface of the valve body (1) is connected to an upper end cover (2), and the lower end surface is connected to a lower end cover (9); the outer side of the upper end cover (2) is connected to a switching drive component; and a limit component for limiting the rotation of the channel valve core (12) is connected to the upper end cover (2).

2. The Y-type reversing valve for conveying according to claim 1, characterized in that: The switching drive assembly comprises a pneumatic actuator (3) and a solenoid valve (4); the pneumatic actuator (3) is connected to the upper end cover (2), and the pneumatic actuator (3) is connected to the channel valve core (12) via a first connecting shaft (8); the pneumatic actuator (3) is connected to the solenoid valve (4).

3. The Y-type reversing valve for conveying according to claim 1, characterized in that: The limiting assembly comprises an eccentric bolt (6), an eccentric bolt mounting plate (7) and a positioning cam (10); the positioning cam (10) is connected to the channel valve core (12); the eccentric bolt mounting plate (7) is connected to the inner side of the upper end cover (2), the eccentric bolt (6) is connected to the eccentric bolt mounting plate (7), and the eccentric bolt (6) is used to limit the positioning cam (10).

4. The Y-type reversing valve for conveying according to claim 2, characterized in that: The lower end cover (9) is rotatably connected to a second connecting shaft (18), and the inner end of the second connecting shaft (18) is connected to the channel valve core (12); a first bearing (11) is provided between the second connecting shaft (18) and the lower end cover (9).

5. The Y-type reversing valve for conveying according to claim 2, characterized in that: A second bearing (19) is provided between the first connecting shaft (8) and the upper end cover (2).

6. The Y-type reversing valve for conveying according to claim 1, characterized in that: The inner ends of the first channel opening (15), the second channel opening (16) and the third channel opening (17) are all provided with sealing strips (13).

7. The Y-type reversing valve for conveying according to claim 6, characterized in that: The sealing strip (13) is made of silicone rubber.

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