A three-way sleeve valve specially used for high pressure shower system in steel mills

Abstract

The utility model discloses a three-way sleeve valve for high-pressure shower system of steel plant, which specifically relates to the technical field of three-way sleeve valves, including a valve body, wherein an inlet is arranged at the bottom of the valve body, a lower outlet and an upper outlet are arranged on both sides of the valve body, and a lower sleeve is arranged inside the valve body. The utility model is provided with structures such as a lower sleeve, an upper sleeve, a valve plug, a lower gasket and a polytetrafluoroethylene packing layer. The utility model adopts a guide sealing ring made of high-performance rubber material and a sealing ring made of reinforced polytetrafluoroethylene material as a combined seal between the valve plug and the lower sleeve and the upper sleeve, which will not produce compression deformation, has a harder sealing valve seat, a higher leakage level, a better sealing effect, and is more reliable to use. Compared with the traditional hard-to-hard sealing structure, it completely changes its shortcomings of large leakage and inconvenient processing, has the advantages of high pressure bearing, high leakage level, not easy to get stuck, low friction coefficient, and wear resistance, thereby extending the service life of the valve.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way sleeve valves, and more specifically to a three-way sleeve valve dedicated to a high-pressure shower system of a steel plant. Background Art

[0002] Traditional straight-stroke three-way regulating valves mostly use a single-seat valve sealing structure. No matter it is a diverter or a converging valve, the inlet is either on the left or the right. It is often used for low-pressure regulation. Sometimes a sleeve cage plus a single-seat structure is also used. This structure simply adds a sleeve cage to the valve seat, which can only increase the noise reduction function and cannot be used in high-pressure difference situations. Due to structural limitations, traditional straight-stroke three-way regulating valves are not suitable for use in high-pressure discharge systems in steel plants.

[0003] Therefore, there is an urgent need for a three-way sleeve valve specially designed for a high-pressure shower system in a steel plant to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a three-way sleeve valve specially used for a high-pressure shower system of a steel plant. By providing a lower sleeve, an upper sleeve, a valve plug, a lower gasket and a polytetrafluoroethylene packing layer and other structures, the utility model adopts a guide sealing ring made of a high-performance rubber material and a sealing ring made of a reinforced polytetrafluoroethylene material as a combined seal between the valve plug and the lower sleeve and the upper sleeve. No compression deformation will occur, a harder sealing valve seat has a high leakage level, a better sealing effect, and is more reliable to use. Compared with the traditional hard-to-hard sealing structure, it completely changes its shortcomings of large leakage and inconvenient processing, and has the advantages of high pressure bearing, high leakage level, not easy to get stuck, low friction coefficient, and wear resistance, thereby extending the service life of the valve to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-way sleeve valve specially used for a high-pressure shower outlet system of a steel plant, comprising a valve body, an inlet is arranged at the bottom of the valve body, a lower outlet and an upper outlet are arranged on both sides of the valve body respectively, a lower sleeve is arranged inside the valve body, an upper sleeve is arranged on the top of the lower sleeve, the same valve plug is arranged inside the lower sleeve and the upper sleeve, a guide sealing ring is arranged between the valve plug and the lower sleeve, the guide sealing ring is made of high-performance rubber material, a sealing ring is arranged between the lower sleeve and the inner wall of the valve body, the sealing ring is made of reinforced polytetrafluoroethylene material, a sealing gasket is arranged between the upper sleeve and the valve body and on the top of the upper sleeve, an upper cover is arranged on the top of the valve body, a plurality of upper cover bolts are arranged through the upper cover, nuts are arranged on the tops of the plurality of upper cover bolts, a valve stem is arranged through the upper cover, a lower gasket is arranged between the valve stem and the upper cover, a polytetrafluoroethylene packing layer is arranged on the top of the lower gasket, and a packing pressure plate is arranged on the top of the polytetrafluoroethylene packing layer.

[0006] In a preferred embodiment, the valve stem is slidably connected to the upper cover, and the packing pressure plate is fixedly mounted on the top of the upper cover by screws.

[0007] In a preferred embodiment, the packing pressure plate is sleeved on the valve stem.

[0008] In a preferred embodiment, the plurality of upper cover bolts are fixedly mounted on the top of the valve body, and the plurality of upper cover bolts are evenly distributed in a ring shape on the top of the valve body.

[0009] In a preferred embodiment, the bottom end of the valve stem is fixedly mounted on the top end of the valve plug.

[0010] In a preferred embodiment, the upper cover bolts are threadedly connected to nuts at corresponding positions.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model is provided with a lower sleeve, an upper sleeve, a valve plug, a lower gasket and a polytetrafluoroethylene packing layer. The utility model adopts a guide sealing ring made of a high-performance rubber material and a sealing ring made of a reinforced polytetrafluoroethylene material as a combined seal of the valve plug, the lower sleeve and the upper sleeve. No compression deformation will occur, a harder sealing valve seat has a high leakage level, a better sealing effect, and is more reliable to use. Compared with the traditional hard-to-hard sealing structure, it has completely changed its shortcomings of large leakage and inconvenient processing, and has the advantages of high pressure bearing, high leakage level, not easy to get stuck, low friction coefficient, and wear resistance, thereby extending the service life of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] The accompanying drawings are marked as follows: 1. valve body; 2. inlet; 3. lower outlet; 4. upper outlet; 5. lower sleeve; 6. upper sleeve; 7. valve plug; 8. guide sealing ring; 9. sealing ring; 10. sealing gasket; 11. upper cover; 12. upper cover bolt; 13. nut; 14. valve stem; 15. lower gasket; 16. PTFE packing layer; 17. packing pressure plate. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] As attached Figure 1As shown, the utility model provides a three-way sleeve valve dedicated to a high-pressure drain system of a steel plant, comprising a valve body 1, wherein an inlet 2 is arranged at the bottom of the valve body 1, and a lower outlet 3 and an upper outlet 4 are arranged on both sides of the valve body 1, a lower sleeve 5 is arranged inside the valve body 1, an upper sleeve 6 is arranged on the top of the lower sleeve 5, and the same valve plug 7 is arranged inside the lower sleeve 5 and the upper sleeve 6, a guide sealing ring 8 is arranged between the valve plug 7 and the lower sleeve 5, and the guide sealing ring 8 is made of high-performance rubber material, and a sealing ring is arranged between the lower sleeve 5 and the inner wall of the valve body 1 9. The sealing ring 9 is made of reinforced polytetrafluoroethylene material. A sealing gasket 10 is arranged between the upper sleeve 6 and the valve body 1 and on the top of the upper sleeve 6. An upper cover 11 is arranged on the top of the valve body 1. A plurality of upper cover bolts 12 are penetrated through the upper cover 11. Nuts 13 are arranged on the tops of the plurality of upper cover bolts 12. A valve stem 14 is penetrated through the upper cover 11. A lower gasket 15 is arranged between the valve stem 14 and the upper cover 11. A polytetrafluoroethylene packing layer 16 is arranged on the top of the lower gasket 15. A packing pressure plate 17 is arranged on the top of the polytetrafluoroethylene packing layer 16.

[0017] The valve stem 14 is slidably connected to the upper cover 11 , and the packing pressure plate 17 is fixedly mounted on the top of the upper cover 11 by screws.

[0018] The packing pressure plate 17 is sleeved on the valve stem 14 .

[0019] The plurality of upper cover bolts 12 are fixedly mounted on the top of the valve body 1 , and the plurality of upper cover bolts 12 are evenly distributed in a ring shape on the top of the valve body 1 .

[0020] The bottom end of the valve stem 14 is fixedly mounted on the top end of the valve plug 7 .

[0021] The upper cover bolts 12 are threadedly connected with nuts 13 at corresponding positions.

[0022] The specific implementation method is as follows: when the utility model is used, the utility model adopts a bottom-in and high-out structure, and then the lower sleeve 5 and the upper sleeve 6 form a sealing structure with the valve plug 7 and the guide sealing ring 8 between the valve plug 7 and the lower sleeve 5. The main sealing surface cut off by the valve plug 7 and the lower sleeve 5 and the upper sleeve 6 becomes a single sealing surface. During use, it becomes a single-seal sleeve valve, but it is also different from the traditional single seal. The traditional single-seal sleeve valve can only be used in low pressure difference occasions, while this structure is a balanced type and can still be used in large pressure difference occasions. This structure can be more applicable to Large pressure difference, zero leakage, and various occasions with high on-site requirements. The utility model adopts a guide sealing ring 8 made of high-performance rubber material and a sealing ring 9 made of reinforced polytetrafluoroethylene material as a combined seal of the valve plug 7 and the lower sleeve 5 and the upper sleeve 6. It will not produce compression deformation, has a harder sealing valve seat, a high leakage level, a better sealing effect, and is more reliable to use. Compared with the traditional hard-to-hard sealing structure, it has completely changed its shortcomings of large leakage and inconvenient processing, and has the advantages of high pressure bearing, high leakage level, not easy to get stuck, low friction coefficient, and wear resistance, thereby extending the service life of the valve.

[0023] Working principle of this utility model:

[0024] Refer to the instruction manual Figure 1 When using the utility model, through the lower sleeve 5, the upper sleeve 6, the valve plug 7, the lower gasket 15 and the polytetrafluoroethylene packing layer 16 and other structures, the utility model adopts the guide sealing ring 8 made of high-performance rubber material and the sealing ring 9 made of reinforced polytetrafluoroethylene material as the combined sealing member of the valve plug 7 and the lower sleeve 5 and the upper sleeve 6, which will not produce compression deformation, has a harder sealing valve seat, a high leakage level, a better sealing effect, and is more reliable to use. Compared with the traditional hard-to-hard sealing structure, it completely changes its shortcomings of large leakage and inconvenient processing, and has the advantages of high pressure bearing, high leakage level, not easy to get stuck, low friction coefficient, and wear resistance, thereby extending the service life of the valve.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0026] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A three-way sleeve valve for a high-pressure shower system in a steel plant, comprising a valve body (1), characterized in that: The bottom of the valve body (1) is provided with an inlet (2), and the two sides of the valve body (1) are respectively provided with a lower outlet (3) and an upper outlet (4). A lower sleeve (5) is provided inside the valve body (1), and an upper sleeve (6) is provided on the top of the lower sleeve (5). The lower sleeve (5) and the upper sleeve (6) are provided with a same valve plug (7). A guide sealing ring (8) is provided between the valve plug (7) and the lower sleeve (5), and the guide sealing ring (8) is made of high-performance rubber material. A sealing ring (9) is provided between the lower sleeve (5) and the inner wall of the valve body (1), and the sealing ring (9) is made of reinforced polytetrafluoroethylene material. The valve body (1) is made of a material, a sealing gasket (10) is arranged between the upper sleeve (6) and the valve body (1) and on the top of the upper sleeve (6), an upper cover (11) is arranged on the top of the valve body (1), a plurality of upper cover bolts (12) are arranged through the upper cover (11), nuts (13) are arranged on the top of the plurality of upper cover bolts (12), a valve stem (14) is arranged through the upper cover (11), a lower gasket (15) is arranged between the valve stem (14) and the upper cover (11), a polytetrafluoroethylene packing layer (16) is arranged on the top of the lower gasket (15), and a packing pressure plate (17) is arranged on the top of the polytetrafluoroethylene packing layer (16).

2. According to claim 1, a three-way sleeve valve specially used for high pressure shower system in steel plant, characterized in that: The valve stem (14) is slidably connected to the upper cover (11), and the packing pressure plate (17) is fixedly mounted on the top of the upper cover (11) by screws.

3. According to claim 1, a three-way sleeve valve specially used for high-pressure shower system of a steel plant is characterized by: The packing pressure plate (17) is sleeved on the valve stem (14).

4. According to claim 1, a three-way sleeve valve specially used for high pressure shower system in steel plant, characterized in that: The plurality of upper cover bolts (12) are fixedly mounted on the top of the valve body (1), and the plurality of upper cover bolts (12) are evenly distributed in a ring shape on the top of the valve body (1).

5. According to claim 1, a three-way sleeve valve specially used for high pressure shower system of steel plant, characterized in that: The bottom end of the valve stem (14) is fixedly mounted on the top end of the valve plug (7).

6. The three-way sleeve valve for high-pressure shower system in a steel plant according to claim 1 is characterized by: The upper cover bolts (12) are threadedly connected to nuts (13) at corresponding positions.

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