High-temperature-resistant three-way blow-off valve

Abstract

The utility model discloses a high-temperature-resistant three-way blow-off valve to solve the problems that an existing three-way distributor is single in function, high-temperature-resistant and distributing functions cannot be achieved at the same time, and the use range is limited under the ultra-high-temperature working condition. The device comprises a shell, a turning plate is arranged in the shell, the turning plate is rotationally connected with the shell through a center shaft, and a driving mechanism is arranged outside the shell; the center shaft is of a hollow structure, a cooling water channel is formed in the center shaft in the axial direction, and a rotating connector is arranged at the end of the center shaft and connected with an external water pipe. A fireproof pouring layer is arranged on the inner side wall of the shell; the device is suitable for the ultrahigh-temperature working condition, has two functions of high temperature resistance and material distribution, is simple in overall structure and efficient, simple and convenient in technological process, can realize synchronous cooling and material distribution in the operation process of equipment, ensures stable operation of the equipment in a high-temperature environment, prolongs the service life of the equipment, and improves the working efficiency.

Description

Technical Field

[0001] This application relates to the field of valve technology, specifically to a high-temperature resistant three-way discharge valve. Background Technology

[0002] A three-way distributor is an industrial device mainly used for material reversal and diversion processes. The electro-hydraulic push rod drives the rotating shaft mechanism of the three-way distributor to control the flip plate to flip, thereby achieving the function of material reversal.

[0003] Most existing three-way distributor housings are made of carbon steel, which is only suitable for materials at normal temperatures. For high-temperature conditions, although the distributor housing is made of stainless steel, its temperature resistance limit is only 500℃, which cannot meet the requirements of higher temperature conditions.

[0004] Furthermore, to cope with higher temperatures, some conventional water-cooled discharge valves (rotary valves) employ water cooling to protect the transmission shaft and bearings through cooling water circulation, enabling the equipment to withstand temperatures up to 800℃. However, while this water-cooling design is effective in conventional rotary valves and can effectively protect the mechanical components, it cannot achieve multi-channel material distribution, failing to meet the needs of multi-channel material distribution under high-temperature conditions. Utility Model Content

[0005] Therefore, this application provides a high-temperature resistant three-way discharge valve to solve the problem that the existing three-way distributor has a single function and cannot simultaneously achieve high temperature resistance and material distribution functions, resulting in a limited range of applications under ultra-high temperature conditions.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A high-temperature resistant three-way discharge valve includes a housing, an inlet at the upper end of the housing, a first outlet and a second outlet at the lower end of the housing, a flap inside the housing located between the inlet and the first and second outlets, and the flap is rotatably connected to the housing via a central shaft. A drive mechanism is provided outside the housing to drive the central shaft to rotate and cause the flap to swing.

[0008] The central shaft is a hollow structure with a cooling water channel formed axially inside. A rotary joint is provided at the end of the central shaft, which is connected to an external water pipe. The inner wall of the shell is provided with a refractory casting layer.

[0009] Optionally, the drive mechanism includes a cylinder and a linkage mechanism, one end of the linkage mechanism is connected to the cylinder, and the other end of the linkage mechanism is connected to the central shaft;

[0010] The two ends of the central shaft are connected to bearing housings via bearings.

[0011] Optionally, the cylinder is mounted on the housing via a cylinder bracket; the bearing seat is mounted on the housing via bolts.

[0012] Optionally, a sealing device is provided between the central shaft and the housing.

[0013] Optionally, the central shaft and the flap are connected by a bushing.

[0014] Compared with the prior art, this application has at least the following beneficial effects:

[0015] Based on further analysis and research of existing technical problems, this application provides a high-temperature resistant three-way discharge valve. Its central shaft is a hollow structure with an axial cooling water channel inside. A rotary joint is provided at the end of the central shaft, connecting to an external water pipe. Cooling water is introduced into the cooling water channel of the central shaft through the external water pipe to cool the central shaft, effectively preventing shaft deformation and bearing damage caused by high temperatures. The inner wall of the shell is also provided with a refractory casting layer. Different refractory casting materials are selected according to different operating temperatures, making it highly targeted and economical. This application is suitable for ultra-high temperature conditions, possessing both high-temperature resistance and material distribution functions. The overall structure is simple, and the process flow is efficient and convenient. It can achieve simultaneous cooling and material distribution during equipment operation, ensuring stable operation of the equipment in high-temperature environments, while extending equipment service life and improving work efficiency. Furthermore, a bushing is provided on the outside of the central shaft, and the bushing is fixedly connected to a flap plate, providing protection for the central shaft. Attached Figure Description

[0016] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0017] Figure 1 A schematic diagram of the structure of a high-temperature resistant three-way discharge valve provided in one embodiment of this application. Figure 1 ;

[0018] Figure 2 A schematic diagram of the structure of a high-temperature resistant three-way discharge valve provided in one embodiment of this application. Figure 2 ;

[0019] Figure 3 for Figure 2 The sectional view shown at the central axis.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Shell; 101. Inlet; 102. First outlet; 103. Second outlet; 2. Refractory casting layer; 3. Central shaft; 4. Bearing seat; 5. Flip plate; 6. Rotary joint; 7. Sealing device; 8. Cylinder; 9. Linkage mechanism. Detailed Implementation

[0022] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] In the description of this application: unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," etc., in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (e.g., they should not be construed as an emphasis on importance or order). Expressions such as "comprising," "including," and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).

[0024] The terms used in this application, such as "upper," "lower," "left," "right," and "middle," are generally used to indicate the general relative positional relationship for the purpose of intuitive understanding by referring to the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product.

[0025] One embodiment of this application, such as Figures 1-3 As shown, a high-temperature resistant three-way discharge valve includes a housing 1. The upper end of the housing 1 is provided with a feed inlet 101, and the lower end of the housing 1 is provided with a first discharge outlet 102 and a second discharge outlet 103. A flap 5 is provided inside the housing 1. The flap 5 is located between the feed inlet 101 and the first discharge outlet 102 and the second discharge outlet 103. The flap 5 is rotatably connected to the housing 1 through a central shaft 3. A drive mechanism is provided outside the housing 1 to drive the central shaft 3 to rotate and drive the flap 5 to swing.

[0026] The central shaft 3 is a hollow structure with a cooling water channel formed axially inside. A rotary joint 6 is provided at the end of the central shaft 3. The rotary joint 6 is connected to the external water pipe. The function of the rotary joint 6 is to allow the central shaft 3 to rotate while preventing the external water pipe from rotating with the central shaft 3, ensuring that the external water pipe remains stationary when supplying water, thereby achieving a continuous supply of cooling water.

[0027] The inner wall of the shell 1 is provided with a refractory casting layer 2. In practical applications, by combining different working temperatures and selecting different refractory casting materials, a targeted and economical design can be achieved. This not only ensures the stable operation of the equipment in high-temperature environments, but also reduces maintenance costs and extends the service life of the equipment.

[0028] Preferably, the drive mechanism includes a cylinder 8 and a linkage mechanism 9. One end of the linkage mechanism 9 is connected to the cylinder 8, and the other end of the linkage mechanism 9 is connected to the central shaft 3, which is used to convert the linear motion of the cylinder 8 into the rotational motion of the central shaft 3.

[0029] The two ends of the central shaft 3 are connected to the bearing housing 4 by bearings. The bearing housing 4 is installed on the housing 1 by bolts, which serves to support the bearings and the central shaft 3.

[0030] More preferably, the cylinder 8 is mounted on the housing 1 via a cylinder bracket;

[0031] A sealing device 7 is also provided between the central shaft 3 and the housing 1.

[0032] Preferably, a bushing is provided on the outside of the central shaft 3, and the bushing is fixedly connected to the flap 5 to protect the central shaft 3.

[0033] The operating principle of the above embodiments:

[0034] The cylinder 8 drives the central shaft 3 to rotate through the linkage mechanism 9, which in turn drives the flap 5 to swing. When the material enters from the feed port 101 of the housing 1, the flap 5 swings to realize the reversal and diversion of the material, and finally the material is discharged from the first discharge port 102 and the second discharge port 103.

[0035] Meanwhile, to ensure the stability of the equipment during operation and the service life of the components, the external water pipe is connected to the central shaft 3 through the rotary joint 6, and cooling water is introduced into the cooling water channel of the central shaft 3 to cool the central shaft 3, effectively avoiding shaft deformation and bearing damage caused by high temperature.

[0036] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A high-temperature resistant three-way discharge valve, characterized in that, The device includes a housing, with a feed inlet at the upper end and a first and a second discharge outlet at the lower end. A flap is located inside the housing between the feed inlet and the first and second discharge outlets, and the flap is rotatably connected to the housing via a central shaft. A drive mechanism is located outside the housing to drive the central shaft to rotate and cause the flap to swing. The central shaft is a hollow structure with a cooling water channel formed axially inside. A rotary joint is provided at the end of the central shaft, which is connected to an external water pipe. The inner wall of the shell is provided with a refractory casting layer.

2. The high-temperature resistant three-way discharge valve according to claim 1, characterized in that, The drive mechanism includes a cylinder and a linkage mechanism, one end of the linkage mechanism is connected to the cylinder, and the other end of the linkage mechanism is connected to the central shaft. The two ends of the central shaft are connected to bearing housings via bearings.

3. The high-temperature resistant three-way discharge valve according to claim 2, characterized in that, The cylinder is mounted on the housing via a cylinder bracket; the bearing seat is mounted on the housing via bolts.

4. The high-temperature resistant three-way discharge valve according to claim 1, characterized in that, A sealing device is provided between the central shaft and the housing.

5. The high-temperature resistant three-way discharge valve according to any one of claims 1-4, characterized in that, The central shaft and the flap are connected by a bushing.

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