Wear-resistant nipple for coal gasification high-pressure ash discharge

Abstract

The utility model discloses a coal gasification high-pressure ash-discharging wear-resistant pup joint, which belongs to the technical field of pup joints and comprises a straight tube, first threads are arranged at two ends of the straight tube, a plurality of limit guide rails are arranged on the inner side of the straight tube, a ceramic tube is further arranged on the inner side of the straight tube, and the ceramic tube is arranged on the straight tube. A plurality of limiting grooves are formed in the outer side of the ceramic cylinder, first inserting grooves are formed in the two ends of the ceramic cylinder correspondingly, two second inserting grooves are formed in the inner side of the ceramic cylinder, the inner sides of the two first threads are in threaded connection with limiting covers correspondingly, and threaded holes are formed in the limiting covers; an annular groove is formed in the end, close to the ceramic cylinder, of the limiting cover. The wear resistance of the ceramic cylinder is high, so that the wear resistance of the coal gasification high-pressure ash discharging short section is greatly improved, and the problems that the existing coal gasification high-pressure ash discharging wear-resistant short section is worn in the coal gasification high-pressure ash discharging process, the short section needs to be replaced regularly, and time and labor are wasted are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of short sections, and more specifically, particularly relates to a coal gasification high-pressure ash unloading wear-resistant short section. Background Art

[0002] A short joint is a commonly used accessory in industrial pipeline connections. Common threaded short joints include double-end male threads, single-end male threads, and flat-end male threads. In addition, there are short joints connected with flanges. Existing wear-resistant short joints for coal gasification high-pressure ash unloading need to be replaced regularly due to wear during the coal gasification high-pressure ash unloading process, which is time-consuming and laborious. Therefore, a wear-resistant short joint for coal gasification high-pressure ash unloading is proposed. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a coal gasification high-pressure ash unloading wear-resistant short section. The ceramic tube has strong wear resistance, thereby greatly improving the wear resistance of the coal gasification high-pressure ash unloading short section, so as to solve the problem of the existing coal gasification high-pressure ash unloading wear-resistant short section proposed in the above background technology. Due to wear during the coal gasification high-pressure ash unloading process, the short section needs to be replaced regularly, which is time-consuming and labor-intensive.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a coal gasification high-pressure ash unloading wear-resistant short section, including a straight cylinder, both ends of the straight cylinder are provided with a first thread, the inner side of the straight cylinder is provided with a plurality of limit guide rails, the inner side of the straight cylinder is also provided with a ceramic cylinder, the outer side of the ceramic cylinder is provided with a plurality of limit grooves, both ends of the ceramic cylinder are provided with a first slot, the inner side of the ceramic cylinder is provided with two second slots, the inner sides of the two first threads are threadedly connected to a limit cover, a threaded hole is provided inside the limit cover, an annular groove is provided at one end of the limit cover close to the ceramic cylinder, the outer side of the annular groove is in sliding contact with the inner side of the first slot, a gasket is provided between the limit cover and the ceramic cylinder, and a nut is provided at one end of the limit cover away from the ceramic cylinder.

[0005] As a preferred technical solution of the utility model, the outer diameter of the ceramic cylinder is equal to the inner diameter of the straight cylinder.

[0006] As a preferred technical solution of the present utility model, the position of the limiting groove corresponds to the position of the limiting guide rail.

[0007] As a preferred technical solution of the present utility model, the second slot and the first slot are both annular structures, and the diameter of the second slot is smaller than the diameter of the first slot.

[0008] As a preferred technical solution of the present utility model, the diameter of the threaded hole is the same as the diameter of the second slot.

[0009] As a preferred technical solution of the present utility model, the diameter of the annular groove is the same as the diameter of the first slot.

[0010] As a preferred technical solution of the present utility model, the gasket is located inside the first slot.

[0011] The utility model provides a coal gasification high-pressure ash unloading wear-resistant short section, which has the following beneficial effects:

[0012] 1. The coal gasification high pressure ash unloading wear-resistant short section has strong wear resistance of the ceramic tube, which greatly improves the wear resistance of the coal gasification high pressure ash unloading short section, thereby solving the problem of the existing coal gasification high pressure ash unloading wear-resistant short section, which needs to be replaced regularly due to wear during the coal gasification high pressure ash unloading process, which is time-consuming and laborious.

[0013] 2. The coal gasification high-pressure ash unloading wear-resistant short section, the ceramic cylinder and the straight cylinder adopt an assembled structure, and the worn ceramic cylinder can be replaced without replacing the entire cylinder, thus reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a coal gasification high-pressure ash unloading wear-resistant short section.

[0015] Figure 2 The utility model is a schematic diagram of the split structure of a coal gasification high-pressure ash unloading wear-resistant short section.

[0016] Figure 3 The utility model is a coal gasification high pressure ash unloading wear-resistant short section Figure 2 A is an enlarged schematic diagram.

[0017] Figure 4 The utility model is a coal gasification high pressure ash unloading wear-resistant short section Figure 2 The enlarged schematic diagram of point B in FIG.

[0018] In the figure: 1, straight cylinder; 2, first thread; 3, limit guide rail; 4, ceramic cylinder; 5, limit groove; 6, first slot; 7, second slot; 8, limit cover; 9, threaded hole; 10, annular groove; 11, gasket; 12, nut. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0020] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figures 1 to 4 The utility model provides a technical solution: a coal gasification high-pressure ash unloading wear-resistant short section, comprising a straight cylinder 1, both ends of the straight cylinder 1 are provided with a first thread 2, the inner side of the straight cylinder 1 is provided with a plurality of limit guide rails 3, the inner side of the straight cylinder 1 is also provided with a ceramic cylinder 4, the outer side of the ceramic cylinder 4 is provided with a plurality of limit grooves 5, both ends of the ceramic cylinder 4 are provided with a first slot 6, the inner side of the ceramic cylinder 4 is provided with two second slots 7, the inner sides of the two first threads 2 are threadedly connected with a limit cover 8, the inner side of the limit cover 8 is provided with a threaded hole 9, and the end of the limit cover 8 close to the ceramic cylinder 4 is provided with an annular groove 1 0, the outer side of the annular groove 10 is in sliding contact with the inner side of the first slot 6, a gasket 11 is provided between the limit cover 8 and the ceramic tube 4, a nut 12 is provided at the end of the limit cover 8 away from the ceramic tube 4, the outer diameter of the ceramic tube 4 is equal to the inner diameter of the straight tube 1, the position of the limit groove 5 corresponds to the position of the limit guide rail 3, the second slot 7 and the first slot 6 are both annular structures, the diameter of the second slot 7 is smaller than the diameter of the first slot 6, the diameter of the threaded hole 9 is the same as the diameter of the second slot 7, the diameter of the annular groove 10 is the same as the diameter of the first slot 6, and the gasket 11 is located inside the first slot 6;

[0023] During installation, align the limiting groove 5 on the ceramic tube 4 with the limiting guide rail 3 on the straight tube 1, and then put the ceramic tube 4 into the straight tube 1. Afterwards, put the gasket 11 into the first slot 6 on the ceramic tube 4, and thread the limiting cover 8 with the first thread 2 on the straight tube 1. The limiting cover 8 is gradually screwed into the straight tube 1 so that the end of the limiting cover 8 with the annular groove 10 is inserted into the first slot 6. The ceramic tube 4 is clamped by the limiting covers 8 at both ends, thereby fixing the ceramic tube 4. Afterwards, the external pipe is threadedly connected to the threaded hole 9 on the limiting cover 8, and one end of the external pipe is inserted into the second slot 7 on the ceramic tube 4, so that the gasification high-pressure ash coming out of the external pipe is directly in contact with the ceramic tube 4. The ceramic tube 4 has strong wear resistance, thereby greatly improving the wear resistance of the gasification high-pressure ash unloading short section, thereby solving the problem of the existing gasification high-pressure ash unloading wear-resistant short section, which needs to be replaced regularly due to wear during the gasification high-pressure ash unloading process, which is time-consuming and labor-intensive.

[0024] Specific usage and function of this embodiment: When installing the utility model, align the limit groove 5 on the ceramic cylinder 4 with the limit guide rail 3 on the straight cylinder 1, and then put the ceramic cylinder 4 into the straight cylinder 1, then put the gasket 11 into the first slot 6 on the ceramic cylinder 4, thread the limit cover 8 with the first thread 2 on the straight cylinder 1, and gradually screw the limit cover 8 into the straight cylinder 1, so that the end of the limit cover 8 with the annular groove 10 is inserted into the first slot 6, and the ceramic cylinder 4 is clamped by the limit covers 8 at both ends, so as to fix the ceramic cylinder 4, then, thread the external pipe with the threaded hole 9 on the limit cover 8, and insert one end of the external pipe into the second slot 7 on the ceramic cylinder 4, so that the gasification high-pressure ash coming out of the external pipe is in direct contact with the ceramic cylinder 4, and the ceramic cylinder 4 has strong wear resistance, thereby greatly improving the wear resistance of the gasification high-pressure ash unloading short section.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coal gasification high pressure ash unloading wear-resistant short section, comprising a straight tube (1), characterized in that: Both ends of the straight cylinder (1) are provided with a first thread (2), the inner side of the straight cylinder (1) is provided with a plurality of limit guide rails (3), the inner side of the straight cylinder (1) is also provided with a ceramic cylinder (4), the outer side of the ceramic cylinder (4) is provided with a plurality of limit grooves (5), both ends of the ceramic cylinder (4) are provided with a first slot (6), the inner side of the ceramic cylinder (4) is provided with two second slots (7), the inner sides of the two first threads (2) are threadedly connected to a limit cover (8), a threaded hole (9) is provided inside the limit cover (8), an annular groove (10) is provided at one end of the limit cover (8) close to the ceramic cylinder (4), the outer side of the annular groove (10) is in sliding contact with the inner side of the first slot (6), a gasket (11) is provided between the limit cover (8) and the ceramic cylinder (4), and a nut (12) is provided at one end of the limit cover (8) away from the ceramic cylinder (4).

2. A coal gasification high pressure ash unloading wear-resistant short section according to claim 1, characterized in that: The outer diameter of the ceramic cylinder (4) is equal to the inner diameter of the straight cylinder (1).

3. A coal gasification high pressure ash unloading wear-resistant short section according to claim 1, characterized in that: The position of the limiting groove (5) corresponds to the position of the limiting guide rail (3).

4. A coal gasification high pressure ash unloading wear-resistant short section according to claim 1, characterized in that: The second slot (7) and the first slot (6) are both annular structures, and the diameter of the second slot (7) is smaller than the diameter of the first slot (6).

5. The coal gasification high pressure ash unloading wear-resistant short section according to claim 1, characterized in that: The diameter of the threaded hole (9) is the same as the diameter of the second slot (7).

6. A coal gasification high pressure ash unloading wear-resistant short section according to claim 1, characterized in that: The diameter of the annular groove (10) is the same as the diameter of the first slot (6).

7. The coal gasification high pressure ash unloading wear-resistant short section according to claim 1, characterized in that: The gasket (11) is located inside the first slot (6).

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