High-temperature and high-pressure ball valve

Abstract

The utility model provides a high-temperature and high-pressure ball valve, which relates to the technical field of high-temperature and high-pressure ball valves and comprises a valve body, a valve rod is rotatably connected onto the valve body, a handle is fixedly connected onto the valve rod, a ball body is fixedly connected onto the valve rod, and a fireproof structure is arranged on the valve body. The fireproof structure is mainly composed of two protective shells, the two protective shells are both arranged on the valve body, inorganic fiber layers are fixedly connected to the interiors of the protective shells, aerogel layers are fixedly connected to the inorganic fiber layers, reflecting layers are fixedly connected to the aerogel layers, supporting layers are fixedly connected to the reflecting layers, and the supporting layers are fixedly connected to the fireproof structure. The utility model solves the problems that the connection point of the ball valve is usually one of the weakest links in the system and is easy to become a fire spreading way, and especially in high-risk environments such as petrochemical engineering, power stations, oil refineries and the like, if additional protection is not carried out on the ball valve, the sealing is easy to damage, and the medium is easy to leak.

Description

Technical Field

[0001] This utility model relates to the field of high temperature and high pressure ball valve technology, and in particular to a high temperature and high pressure ball valve. Background Technology

[0002] High-temperature and high-pressure ball valves are valves specifically designed to control fluid flow in high-temperature and high-pressure environments. They are widely used in petrochemical, power plant, oil refining, natural gas, and long-distance pipeline industries, and are key components for ensuring the safe and efficient operation of industrial processes.

[0003] During the use of current high-temperature and high-pressure ball valves, staff often find that: the outer wall of the current high-temperature and high-pressure ball valve is usually equipped with fireproof and heat-insulating material to ensure that it can maintain a seal and prevent the medium from leaking out in the event of a fire. However, the connection point of the ball valve is usually one of the weakest links in the system and can easily become a path for the spread of fire. Especially in high-risk environments such as petrochemical plants, power plants, and oil refineries, if additional protection is not provided, it can easily lead to the leakage of the medium due to damage to the seal. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-temperature and high-pressure ball valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-temperature and high-pressure ball valve, comprising a valve body, a valve stem rotatably connected to the valve body, a handle fixedly connected to the valve stem, a ball fixedly connected to the valve stem, and a fireproof structure provided on the valve body. The fireproof structure mainly consists of two protective shells, both of which are provided on the valve body, and an inorganic fiber layer is fixedly connected in the protective shell.

[0006] The aforementioned components achieve the following effects: they secure the two protective shells at the valve body connection, covering the connection. The protective shells are made of high-temperature resistant stainless steel, which can withstand direct flame attacks and prevent high temperatures from directly damaging the internal structure. The inorganic fiber layer can be ceramic fiber or aluminum silicate fiber, which has good thermal insulation properties and can effectively slow down heat conduction. This avoids the situation where the connection point of the ball valve is usually one of the weakest links in the system and can easily become a path for fire to spread, especially in high-risk environments such as petrochemical plants, power plants, and oil refineries. Without additional protection, the seal may be damaged and the medium may leak out.

[0007] Preferably, an aerogel layer is fixedly connected to the inorganic fiber layer, a reflective layer is fixedly connected to the aerogel layer, and a support layer is fixedly connected to the reflective layer.

[0008] The effects achieved by the above components are as follows: the inorganic fiber layer can further improve the heat insulation effect; the reflective layer is a highly reflective material, which further reduces heat transfer by reflecting radiant heat; and the supporting layer is a metal mesh, which ensures the stability of the fireproof and heat-insulating layer and enhances the strength of the overall structure.

[0009] Preferably, a connecting block is fixedly connected to one of the protective shells, and a connecting groove is formed on one of the protective shells.

[0010] The effect achieved by the above components is that by inserting the connecting block into the connecting groove, the two protective shells can be connected together.

[0011] Preferably, two round buttons are fixedly connected to each side of the protective shell, and a limit block is rotatably connected to the two round buttons on the protective shell.

[0012] The effect achieved by the above components is that by rotating the limiting block and locking it on the corresponding round button, the protective shell can be limited, making the connection between the two protective shells more stable.

[0013] Preferably, two sealing strips are fixedly connected to the protective shell.

[0014] The effect achieved by the above components is that the sealing strip, when pressed against the inner wall of the valve body, can improve the sealing performance of the connection.

[0015] Preferably, the valve body is provided with a visible structure, which is mainly composed of a spur gear. The spur gear is fixedly connected to the valve stem, and a rack is meshed on the spur gear. A scale is fixedly connected to the rack.

[0016] The effect achieved by the above components is that when the operator manually turns the handle, the valve stem will drive the flat gear to rotate, which in turn will drive the rack to slide. The angle of rotation of the valve stem can be accurately judged by observing the numbers on the scale.

[0017] Preferably, a column is fixedly connected to the valve body, and a pointer is fixedly connected to the column.

[0018] The effect achieved by the above components is that the pointer makes it easier for staff to observe the numbers on the ruler.

[0019] Preferably, the valve body has a sliding groove, in which a sliding rod is slidably connected, and the sliding rod is fixedly connected to the rack.

[0020] The effect achieved by the above components is that the slide bar slides within the groove, making the movement of the rack more stable.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this utility model, by setting a fireproof structure, two protective shells are clamped at the connection of the valve body, covering the connection. The protective shell is made of high-temperature resistant stainless steel, which can resist direct flame attack and prevent high temperature from directly invading the internal structure. The inorganic fiber layer can be ceramic fiber or aluminum silicate fiber, which has good heat insulation performance and can effectively slow down heat conduction. This avoids the situation where the connection point of the ball valve is usually one of the weakest links in the system and is easy to become a path for fire to spread, especially in high-risk environments such as petrochemical plants, power plants, and oil refineries. Without additional protection, the seal is easily damaged and the medium leaks out. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a high-temperature and high-pressure ball valve is provided for this utility model;

[0023] Figure 2 This utility model presents a three-dimensional structural schematic diagram of a high-temperature and high-pressure ball valve from another perspective.

[0024] Figure 3 A cross-sectional view of a high-temperature and high-pressure ball valve is provided for this utility model;

[0025] Figure 4 A partial schematic diagram of the fireproof structure of a high-temperature and high-pressure ball valve proposed in this utility model;

[0026] Figure 5 Another schematic diagram of the fireproof structure of a high-temperature and high-pressure ball valve is provided for this utility model.

[0027] Figure 6 This is a partial schematic diagram of the visible structure of a high-temperature and high-pressure ball valve proposed in this utility model;

[0028] Legend: 1. Valve body; 2. Valve stem; 3. Ball; 4. Handle; 5. Fireproof structure; 51. Protective shell; 52. Inorganic fiber layer; 53. Aerogel layer; 54. Reflective layer; 55. Support layer; 56. Connecting groove; 57. Connecting block; 58. Round button; 59. Limiting block; 510. Sealing strip; 6. Visible structure; 61. Flat gear; 62. Rack; 63. Slide groove; 64. Slide rod; 65. Scale; 66. Column; 67. Pointer. Detailed Implementation

[0029] Example 1, as Figures 1 to 3 As shown, a high-temperature and high-pressure ball valve includes a valve body 1, a valve stem 2 rotatably connected to the valve body 1, a handle 4 fixedly connected to the valve stem 2, and a ball 3 fixedly connected to the valve stem 2.

[0030] Reference Figure 4 and Figure 5The valve body 1 is equipped with a fireproof structure 5, which mainly consists of two protective shells 51. Both protective shells 51 are mounted on the valve body 1, and an inorganic fiber layer 52 is fixedly connected within each protective shell 51. The two protective shells 51 are secured at the connection point of the valve body 1, covering the connection. The protective shells 51 are made of high-temperature resistant stainless steel, capable of resisting direct flame attack and preventing high temperatures from directly damaging the internal structure. The inorganic fiber layer 52 can be ceramic fiber or aluminosilicate fiber, possessing excellent heat insulation properties and effectively slowing down heat conduction. This prevents the connection point of the ball valve from becoming one of the weakest links in the system, easily becoming a pathway for fire spread, especially in high-risk environments such as petrochemical plants, power plants, and oil refineries. Without additional protection, the seal may be damaged, leading to leakage of the medium. An aerogel layer 53 is fixedly connected to the inorganic fiber layer 52, and a reflective layer 54 is fixedly connected to the aerogel layer 53. A support layer 55 is fixedly connected to the upper part of the protective shell 51. The inorganic fiber layer 52 can further improve the heat insulation effect. The reflective layer 54 is a highly reflective material, which further reduces heat transfer by reflecting radiant heat. The support layer 55 is a metal mesh to ensure the stability of the fireproof and heat insulation layer and enhance the strength of the overall structure. A connecting block 57 is fixedly connected to one of the protective shells 51. A connecting groove 56 is opened on one of the protective shells 51. The connecting block 57 is inserted into the connecting groove 56 to connect the two protective shells 51 together. Two round buttons 58 are fixedly connected to each side of the protective shell 51. A limit block 59 is rotatably connected to the two round buttons 58 on one of the protective shells 51. Rotating the limit block 59 so that it is locked on the corresponding round button 58 can limit the protective shell 51 and make the connection between the two protective shells 51 more stable. Two sealing strips 510 are fixedly connected to the protective shell 51. The sealing strips 510 are pressed against the inner wall of the valve body 1 to improve the sealing performance of the connection.

[0031] Reference Figure 6 The valve body 1 is provided with a visual structure 6, which is mainly composed of a spur gear 61. The spur gear 61 is fixedly connected to the valve stem 2. A rack 62 is meshed on the spur gear 61. A scale 65 is fixedly connected to the rack 62. When the operator manually turns the handle 4, the valve stem 2 will drive the spur gear 61 to rotate, which in turn drives the rack 62 to slide. The angle of rotation of the valve stem 2 can be accurately judged by observing the numbers on the scale 65. A column 66 is fixedly connected to the valve body 1. A pointer 67 is fixedly connected to the column 66. The pointer 67 makes it easier for the operator to observe the numbers on the scale 65. A slide groove 63 is opened on the valve body 1. A slide rod 64 is slidably connected in the slide groove 63. The slide rod 64 is fixedly connected to the rack 62. The slide rod 64 slides within the slide groove 63, making the movement of the rack 62 more stable.

[0032] Working principle: Two protective shells 51 are secured at the connection point of the valve body 1, covering the connection. The protective shells 51 are made of high-temperature resistant stainless steel, capable of resisting direct flame attack and preventing high temperatures from directly damaging the internal structure. The inorganic fiber layer 52 can be ceramic fiber or aluminosilicate fiber, which has good heat insulation properties and can effectively slow down heat conduction. This avoids the situation where the connection point of the ball valve is usually one of the weakest links in the system and can easily become a path for fire spread, especially in high-risk environments such as petrochemical plants, power plants, and oil refineries. Without additional protection, the seal can be damaged and the medium can leak out. The inorganic fiber layer 52 can further improve the heat insulation effect. The reflective layer 54 is a highly reflective material that further reduces heat transfer by reflecting radiant heat. The support layer 5... 5 is a metal mesh to ensure the stability of the fireproof and heat-insulating layer and enhance the strength of the overall structure. Connecting block 57 is inserted into connecting groove 56 to connect the two protective shells 51 together. Rotating limit block 59 and locking it onto the corresponding round button 58 can limit the protective shell 51, making the connection between the two protective shells 51 more stable. Sealing strip 510 is pressed against the inner wall of valve body 1 to improve the sealing of the connection. When the operator manually rotates handle 4, valve stem 2 will drive the flat gear 61 to rotate, which in turn drives rack 62 to slide. The angle of rotation of valve stem 2 can be accurately judged by observing the numbers on scale 65. Pointer 67 makes it easier for the operator to observe the numbers on scale 65. Slide rod 64 slides in sliding groove 63 to limit the movement of rack 62, making the movement of rack 62 more stable.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A high-temperature and high-pressure ball valve, comprising a valve body (1), characterized in that: A valve stem (2) is rotatably connected to the valve body (1), a handle (4) is fixedly connected to the valve stem (2), a ball (3) is fixedly connected to the valve stem (2), and a fireproof structure (5) is provided on the valve body (1). The fireproof structure (5) is mainly composed of two protective shells (51), both of which are provided on the valve body (1). An inorganic fiber layer (52) is fixedly connected in the protective shell (51).

2. The high-temperature and high-pressure ball valve according to claim 1, characterized in that: An aerogel layer (53) is fixedly connected to the inorganic fiber layer (52), a reflective layer (54) is fixedly connected to the aerogel layer (53), and a support layer (55) is fixedly connected to the reflective layer (54).

3. The high-temperature and high-pressure ball valve according to claim 2, characterized in that: A connecting block (57) is fixedly connected to one of the protective shells (51), and a connecting groove (56) is provided on one of the protective shells (51).

4. The high-temperature and high-pressure ball valve according to claim 3, characterized in that: Two round buttons (58) are fixedly connected to each side of the protective shell (51), and a limit block (59) is rotatably connected to the two round buttons (58) on the protective shell (51).

5. The high-temperature and high-pressure ball valve according to claim 4, characterized in that: Two sealing strips (510) are fixedly connected to the protective shell (51).

6. The high-temperature and high-pressure ball valve according to claim 5, characterized in that: The valve body (1) is provided with a visible structure (6), which is mainly composed of a spur gear (61). The spur gear (61) is fixedly connected to the valve stem (2). A rack (62) is meshed on the spur gear (61), and a scale (65) is fixedly connected on the rack (62).

7. The high-temperature and high-pressure ball valve according to claim 6, characterized in that: A column (66) is fixedly connected to the valve body (1), and a pointer (67) is fixedly connected to the column (66).

8. The high-temperature and high-pressure ball valve according to claim 7, characterized in that: The valve body (1) is provided with a sliding groove (63), and a sliding rod (64) is slidably connected in the sliding groove (63). The sliding rod (64) is fixedly connected to the rack (62).

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