A dual-channel delivery reversing valve

Abstract

The utility model relates to a dual-channel delivery reversing valve, including a valve body and a valve core, wherein the valve core is rotatably connected to the inner side of the valve body, and side covers are connected to the two sides of the valve body; shafts are connected to the two sides of the valve core, and the two shafts are rotatably connected to the side covers on both sides; a first port is provided on one side of the valve body, and a second port and a third port are provided on the other side, and a stainless steel pipe is provided in each of the first port, the second port and the third port; a first valve core channel and a second valve core channel are connected in the valve core, and the first valve core channel and the second valve core channel are arranged in parallel; the side wall of the valve body is connected to a driving component for driving the valve core to rotate. The purpose of the utility model is to overcome the existing defects and provide a dual-channel delivery reversing valve, which adopts a 35-degree reversing angle, has a small rotation angle, a short reversing time, a compact structure, and a small installation space.

Description

Technical Field

[0001] The utility model relates to a double-channel delivery reversing valve. Background Art

[0002] Gravity and pneumatic conveying systems and their supporting equipment are important devices for reducing industrial dust pollution and improving resource utilization efficiency. They have been widely used and rapidly developed in many pillar industries of the national economy and their sub-sectors, such as steel, electricity, petrochemicals, cement, food, and pharmaceuticals. They are also in line with the concept of sustainable development guided by energy conservation and environmental protection.

[0003] The reversing valve is an important reversing device in the gravity and pneumatic conveying system. The reversing valve is required in the pneumatic conveying system of all large-scale polyolefin plants. With the continuous increase and innovation of polyolefin product types, the characteristics of its materials are becoming more and more complex and diversified, and the requirements for reversing are becoming higher and higher. The three-way ball or plunger reversing valves commonly used in the market have a long reversing time, and the valve body and pneumatic accessory instrument installation occupy a large space. Therefore, a dual-channel conveying reversing valve is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to overcome the existing defects and provides a dual-channel delivery reversing valve, which adopts a 35-degree reversing angle, has a small rotation angle, a short reversing time, a compact structure and a small installation space.

[0005] The technical solution to achieve the above object is: a dual-channel delivery reversing valve, comprising a valve body and a valve core, wherein the valve core is rotatably connected to the inner side of the valve body, and side covers are connected to both sides of the valve body; rotating shafts are connected to both sides of the valve core, and the two rotating shafts are rotatably connected to the side covers on both sides respectively;

[0006] The valve body has a first opening on one side and a second opening and a third opening on the other side, wherein a stainless steel pipe is disposed in each of the first opening, the second opening and the third opening;

[0007] A first valve core channel and a second valve core channel are connected in the valve core, and the first valve core channel and the second valve core channel are arranged in parallel;

[0008] The side wall of the valve body is connected to a driving assembly for driving the valve core to rotate.

[0009] Preferably, the drive assembly includes a cylinder, the side wall of the valve body is connected to the cylinder mounting tube, the cylinder is connected to the cylinder mounting tube via a retaining ring, and the output end of the cylinder is connected to the valve core via a connecting piece.

[0010] Preferably, the connecting member includes two pins and two hinge connecting plates, the two pins are respectively connected to the two ends of the two hinge connecting plates, and the two ends of each pin are connected to a second retaining spring for fixing, one of the pins is rotatably connected to the fixed plate of the valve core, and the other pin is rotatably connected to the output shaft of the cylinder.

[0011] Preferably, a shield is connected below the cylinder mounting tube, a solenoid valve is connected inside the shield, the solenoid valve is used to control the extension and retraction of the cylinder output end, and the shield is connected to a shield bottom plate for protecting the solenoid valve.

[0012] Preferably, the rotating shaft extends to the outside of the side cover and is connected to a flow direction indicating plate.

[0013] Preferably, side cover sealing rings are provided on the inner sides of the two side covers.

[0014] Preferably, valve core sealing rings are provided at inner ends of the first port, the second port and the third port.

[0015] The beneficial effects of the utility model are:

[0016] 1) The dual-channel delivery reversing valve sets the angle between the second port and the third port at 35 degrees, sets the first valve core channel and the second valve core channel in parallel, and only needs to change the angle of 35 degrees when switching, with a small rotation angle and a short reversing time. The minimum reversing time can be reduced to 2 seconds. The operation time is reduced by about 50% compared with the conventional three-way ball or plunger reversing valve.

[0017] 2) By setting the first valve core channel and the second valve core channel, the two-channel design, the first valve core channel and the second valve core channel correspond to the second port and the third port respectively. When rotating and reversing, the material that has not completely passed through the channel will not enter the other outlet, and the transportation of different materials will not be mixed together. It is often used in working conditions with high quality requirements for food and pharmaceutical materials and has excellent performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an axonometric diagram of the dual-channel delivery reversing valve of the utility model;

[0019] Figure 2 It is a front view of the double-channel delivery reversing valve of the utility model;

[0020] Figure 3 It is an exploded view of the dual-channel delivery reversing valve of the utility model;

[0021] Figure 4 It is a detailed view of the valve body of the utility model;

[0022] Figure 5It is a detailed diagram of the valve core of the utility model;

[0023] Figure 6 It is a detailed diagram of the stainless steel pipe of the utility model;

[0024] Figure 7 It is a detailed view of the first valve core channel and the second valve core channel of the utility model.

[0025] In the figure: 1. valve body; 2. valve core; 3. side cover; 4. rotating shaft; 5. first port; 6. second port; 7. third port; 8. stainless steel pipe; 9. first valve core channel; 10. second valve core channel; 11. cylinder; 12. cylinder mounting pipe; 13. pin shaft; 14. hinge connecting plate; 15. second retaining spring; 16. fixing plate; 17. shield; 18. solenoid valve; 19. shield bottom plate; 20. side cover sealing ring; 21. valve core sealing ring; 22. flow direction indicator plate; 23. retaining spring retaining ring. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] The utility model will be further described below in conjunction with the accompanying drawings.

[0028] like Figure 1-7 As shown, a dual-channel delivery reversing valve includes a valve body 1 and a valve core 2, the valve core 2 is rotatably connected to the inner side of the valve body 1, side covers 3 are connected on both sides of the valve body 1, and side cover sealing rings 20 are arranged on the inner sides of the two side covers 3, and the side cover sealing rings 20 are made of rubber material; rotating shafts 4 are connected on both sides of the valve core 2, and the two rotating shafts 4 are rotatably connected to the side covers 3 on both sides respectively; the valve body 1 is made of cast aluminum and lined with stainless steel pipe, which has strong wear resistance and long service life.

[0029] Specifically, a first port 5 is provided on one side of the valve body 1, and a second port 6 and a third port 7 are provided on the other side. A stainless steel pipe 8 is provided in each of the first port 5, the second port 6 and the third port 7. A valve core sealing ring 21 is provided at the inner end of each of the first port 5, the second port 6 and the third port 7. The valve core sealing ring 21 is made of rubber. The first port 5 and the second port 6 are opposite to each other, and the third port 7 is located below the second port 6. The angle between the second port 6 and the third port 7 is 35 degrees.

[0030] Specifically, the valve core 2 is connected with a first valve core channel 9 and a second valve core channel 10, which are made of stainless steel and are arranged in parallel; the first valve core channel 9 is connected to the first port 5 and the second port 6, and when the valve core 2 rotates 35 degrees, the second valve core channel 10 is connected to the first port 5 and the third port 7, thereby completing the switching of the channels, with a small rotation angle and a short switching time. The switching time can be reduced to 2 seconds at the minimum. The operation time is reduced by about 50% compared with the conventional three-way ball or plunger type reversing valve.

[0031] Specifically, the side wall of the valve body 1 is connected to a driving assembly for driving the valve core 2 to rotate. The driving assembly includes a cylinder 11, and the side wall of the valve body 1 is connected to a cylinder mounting tube 12. The cylinder 11 is connected to the cylinder mounting tube 12 through a retaining ring 23, and the output end of the cylinder 11 is connected to the valve core 2 through a connecting piece. The connecting piece includes two pins 13 and two hinge connecting plates 14. The two pins 13 are respectively connected to the two ends of the two hinge connecting plates 14. The two ends of each pin 13 are connected to a second retaining ring 15 for fixing. One of the pins 13 is rotatably connected to the fixing plate 16 of the valve core 2, and the other pin 13 is rotatably connected to the output shaft of the cylinder 11. The extension and retraction of the output end of the cylinder 11 drives the valve core 2 to rotate, completing the switching of the channel. The cylinder 11 is embedded in the valve body 1, and the instrument accessories are installed in the protective cover, with a compact structure and a small installation space. The cylinder and the instrument accessories are hidden in the valve body 1 and the protective cover, which are well protected, improve the service life, and reduce the number of maintenance times. The maintenance cost can be saved by 30-40%;

[0032] The dual-channel conveying reversing valve is designed with two channels by setting the first valve core channel 9 and the second valve core channel 10. The first valve core channel 9 and the second valve core channel 10 correspond to the second port 6 and the third port 7 respectively. When rotating and reversing, materials that have not completely passed through the channel will not enter the other outlet, and different materials will not be mixed when conveyed. It is often used in working conditions with high quality requirements for food and pharmaceutical materials.

[0033] Specifically, a shield 17 is connected below the cylinder mounting tube 12 , and a solenoid valve 18 is connected inside the shield 17 . The solenoid valve 18 is used to control the extension and retraction of the output end of the cylinder 11 . The shield 17 is connected to a shield bottom plate 19 for protecting the solenoid valve 18 .

[0034] Specifically, the rotating shaft 4 extends to the outside of the side cover 3 and is connected to a flow direction indicator plate 22. The end surface of the rotating shaft 4 is processed with a flow direction groove, which is parallel to the first valve core channel 9 and the second valve core channel 10. The flow direction indicator plate 22 is installed on the flow direction grooves on both sides of the dual-channel valve core. By observing the position of the flow direction indicator plate, it can be determined whether the valve is in the straight-through or bypass position.

[0035] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. 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 utility model.

Claims

1. A dual-channel delivery reversing valve, characterized in that: The valve body (1) comprises a valve core (2), wherein the valve core (2) is rotatably connected to the inner side of the valve body (1), and side covers (3) are connected to both sides of the valve body (1); a rotating shaft (4) is connected to both sides of the valve core (2), and the two rotating shafts (4) are rotatably connected to the side covers (3) on both sides respectively; The valve body (1) has a first opening (5) on one side and a second opening (6) and a third opening (7) on the other side, and a stainless steel pipe (8) is disposed in each of the first opening (5), the second opening (6) and the third opening (7); The valve core (2) is connected with a first valve core channel (9) and a second valve core channel (10), and the first valve core channel (9) and the second valve core channel (10) are arranged in parallel; The side wall of the valve body (1) is connected to a driving component for driving the valve core (2) to rotate.

2. The dual-channel delivery reversing valve according to claim 1, characterized in that: The drive assembly comprises a cylinder (11), the side wall of the valve body (1) is connected to a cylinder mounting tube (12), the cylinder (11) is connected to the cylinder mounting tube (12) via a retaining ring (23), and the output end of the cylinder (11) is connected to the valve core (2) via a connecting piece.

3. The dual-channel delivery reversing valve according to claim 2, characterized in that: The connecting member comprises two pin shafts (13) and two hinge connecting plates (14), the two pin shafts (13) being respectively connected to the two ends of the two hinge connecting plates (14), and the two ends of each pin shaft (13) being connected to a second retaining spring (15) for fixing, wherein one pin shaft (13) is rotatably connected to a fixing plate (16) of the valve core (2), and the other pin shaft (13) is rotatably connected to an output shaft of the cylinder (11).

4. The dual-channel delivery reversing valve according to claim 2, characterized in that: A shield (17) is connected below the cylinder mounting pipe (12), a solenoid valve (18) is connected inside the shield (17), the solenoid valve (18) is used to control the extension and retraction of the output end of the cylinder (11), and the shield (17) is connected to a shield bottom plate (19) for protecting the solenoid valve (18).

5. The dual-channel delivery reversing valve according to claim 1, characterized in that: The rotating shaft (4) extends to the outside of the side cover (3) and is connected to a flow direction indicating plate (22).

6. The dual-channel delivery reversing valve according to claim 1, characterized in that: Side cover sealing rings (20) are provided on the inner sides of the two side covers (3).

7. The dual-channel delivery reversing valve according to claim 1, characterized in that: The inner ends of the first opening (5), the second opening (6) and the third opening (7) are all provided with valve core sealing rings (21).

Images