Three-way diverter valve

Abstract

The utility model provides a three-way diverter valve. The three-way diverter valve comprises a diverter valve body, an air cylinder and a valve plate. One end of the diverting valve body is provided with a feeding port, the other end of the diverting valve body is provided with two discharging branch pipes, and an included angle is formed between the center lines of the two discharging branch pipes. The part, close to the diverting valve body, of the discharging branch pipe is a square pipe section, and the section of the inner pipe wall of the square pipe section of the discharging branch pipe is square; the air cylinder is connected to a Y-shaped diverting point of the diverting valve body, and the air cylinder is located between the two discharging branch pipes; the valve plate is a square plate, the valve plate is arranged in the diverting valve body, one end of the valve plate is connected with a rotating shaft of the air cylinder, and the air cylinder can drive the valve plate to rotate through the rotating shaft until the square pipe section of one discharging branch pipe is closed or opened.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a three-way directional valve. Background Art

[0002] For Y-type solid or gas-solid feeding and discharging systems with one-to-two (one inlet and two outlets or two inlets and one outlet) working conditions (such as a feeding system from a two-in-one dryer to two dryers below), valves need to be installed at the Y-type dividing point to divert the solid conveying direction.

[0003] The current conventional practice is to install a three-way ball valve at the Y-type split point or to install ball valves, gate valves, butterfly valves, plug valves, etc. on both sides of the Y-type split port. However, the above solutions all have certain disadvantages, as follows:

[0004] 1. Installing a three-way ball valve at the Y-shaped branch point: The volume and weight of a three-way ball valve and its supporting cylinder increase significantly with size. Solid material discharge pipes are generally around DN150 to DN350. Three-way valves of this size are inconvenient to install and are costly. To facilitate discharge, the L-shaped channel angle of the three-way valve core needs to be around 120-150°, which is also difficult to manufacture.

[0005] 2. Installing ball valves on both sides of the Y-shaped split port: This solution has similar disadvantages to the three-way valve. The volume and weight of the ball valve and its supporting cylinder increase significantly with the size of the valve. In addition, two ball valves must be installed on both sides of the Y-shaped split port, making this solution inconvenient and expensive to install. During installation, a straight pipe short-circuit will exist between the ball valve and the split point. This short-circuit may cause solids to form bridges and block materials, affecting the smoothness of solid discharge. The short-circuit also causes material mixing, which is not conducive to product quality control.

[0006] 3. Install gate valves on both sides of the Y-type split port: The volume and weight of the gate valve do not increase significantly with the change of size. It is easier to install than the ball valve and is cheaper than the ball valve. However, this solution also has the problem of a short connection between the gate valve and the split point during installation, which also has the short-circuit disadvantage of the ball valve solution.

[0007] 4. Install butterfly valves on both sides of the Y-type split port: The butterfly valve solution is similar to the gate valve solution. In addition to the disadvantages of the gate valve, the butterfly valve solution also has the problem of a butterfly valve disc in the middle of the discharge pipe, which leads to a higher frequency of solid material bridging and blocking.

[0008] 5. Install gate valves on both sides of the Y-shaped branch port: The gate valve solution can solve the problems of size, weight, installation short circuit and bridging blockage in the above solution, but its sealing effect is poor, there is a possibility of material contact with the environment, and it cannot be automated and can only be operated manually. The gate valve solution is inconvenient to use for working conditions with high installation height. Summary of the Invention

[0009] The embodiment of the present application provides a three-way directional valve, comprising a directional valve body, a cylinder, and a valve plate;

[0010] One end of the diverter valve body is provided with a feed port, and the other end of the diverter valve body is provided with two discharge branches, and the center lines of the two discharge branches form an angle;

[0011] The portion of the discharge branch pipe close to the diverter valve body is a square pipe section, and the cross-sectional shape of the inner pipe wall of the square pipe section of the discharge branch pipe is a square;

[0012] The cylinder is connected to the Y-shaped diversion point of the diversion valve body, and the cylinder is located between the two discharge branches;

[0013] The valve plate is a square plate, which is arranged in the diverter valve body, and one end of the valve plate is connected to the rotating shaft of the cylinder. The cylinder can drive the valve plate to rotate through the rotating shaft to close or open the square pipe section of one of the discharge branches.

[0014] In one possible embodiment, the three-way directional valve provided in the embodiment of the present application has a square shape in the feed port, an adapter is connected to the feed port, one end of the adapter connected to the feed port has a square port, and the other end of the adapter has a circular port.

[0015] In one possible implementation manner, in the three-way directional valve provided in the embodiment of the present application, the angle between the center lines of the two discharge branches is 40~150°.

[0016] Beneficial effects: The three-way directional valve of the present application has a small resistance to valve plate rotation, so the size of its matching cylinder is also small, which can effectively reduce the overall valve volume. The main part of the directional valve body is square, and the design pressure is normal pressure. It can be welded using 6~8mm steel plates. It is easy to process, the valve body has good sealing performance, and it is light and easy to install. There is no short circuit in the directional valve body. Only the valve plate controls the direction of inlet and outlet, and there is no solid bridging and blocking phenomenon. Automatic switching can be achieved by installing a cylinder, and the valve signal can be transmitted to the DCS or PLC system for automatic control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 1. It is a top view schematic diagram of a three-way directional valve;

[0019] Figure 2 It is a front view schematic diagram of the diverter valve body;

[0020] Figure 3 It is a side view schematic diagram of the diverter valve body.

[0021] Description of reference numerals:

[0022] 10-diverter valve body;

[0023] 11-feed port;

[0024] 12-discharge branch pipe;

[0025] 121-square tube section;

[0026] 20-cylinder;

[0027] 30-valve plate;

[0028] 40-Adapter. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] See also Figures 1 to 3 As shown, the embodiment of the present application provides a three-way directional valve, including a directional valve body 10, a cylinder 20 (pneumatic actuator), and a valve plate 30, wherein:

[0031] One end of the diverter valve body 10 has an inlet 11, and the other end has two outlet branches 12. The centerlines of the two outlet branches 12 are angled (typically 40° to 150°), forming a Y-shaped bifurcation. The inlet 11 is square in shape and is connected to an adapter 40. The adapter 40 has a square opening on one end connected to the inlet 11 and a circular opening on the other end (this opening can be squared depending on the operating conditions). The circular opening is used to connect to a solids inlet and outlet pipe with a circular opening.

[0032] The portion of the discharge branch pipe 12 that is close to the diverter valve body 10 and connected to the diverter valve body 10 is a square pipe section 121 , and the cross-section of the inner pipe wall of the square pipe section 121 of the discharge branch pipe 12 is a square.

[0033] The cylinder 20 is connected to the Y-shaped dividing point of the diverter valve body 10 , and the cylinder 20 is located between the two discharge branches 12 .

[0034] The valve plate 30 is a square plate. The valve plate 30 is arranged in the diverter valve body 10, and one end of the valve plate 30 is connected to the rotating shaft of the cylinder 20. The cylinder 20 can drive the valve plate 30 to rotate through the rotating shaft to close or open the square pipe section 121 of one of the discharge branches 12.

[0035] The three-way directional valve in the embodiment of the present application has low rotational resistance of the valve plate 30, resulting in a compact cylinder 20. The directional valve body 10 is designed for atmospheric pressure and can be welded from 6-8mm steel plates. This makes it easy to manufacture, provides excellent sealing, and is lightweight and easy to install. There are no short circuits in the directional valve body 10; only the valve plate 30 controls the inlet and outlet directions, eliminating the risk of solid bridging and material blockage. Installing the cylinder 20 enables automated switching, and valve signals can be transmitted to a DCS or PLC system.

[0036] In the description of the embodiments of the present application, it should be understood that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. The orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In the description of this application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0037] The terms "first," "second," "third," "fourth," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential sequence. It should be understood that the numbers used in this manner are interchangeable where appropriate, so that the embodiments of the application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, methods, products, or apparatus.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A three-way directional valve, characterized in that: Including directional valve body, cylinder and valve plate; One end of the diverter valve body is provided with a feed port, and the other end of the diverter valve body is provided with two discharge branches, and the center lines of the two discharge branches form an angle; The portion of the discharge branch pipe close to the diverter valve body is a square pipe section, and the cross-sectional shape of the inner pipe wall of the square pipe section of the discharge branch pipe is a square; The cylinder is connected to the Y-shaped diversion point of the diversion valve body, and the cylinder is located between the two discharge branches; The valve plate is a square plate, which is arranged in the diverter valve body, and one end of the valve plate is connected to the rotating shaft of the cylinder. The cylinder can drive the valve plate to rotate through the rotating shaft to close or open the square pipe section of one of the discharge branches.

2. The three-way directional valve according to claim 1, characterized in that: The feed port is in a square shape and is connected to a converter. One end of the converter connected to the feed port has a square opening, and the other end of the converter has a circular opening.

3. The three-way directional valve according to claim 2, characterized in that: The angle between the center lines of the two discharge branch pipes is 40-150°.

Images