High-temperature-resistant explosion-proof stainless steel pipe

Abstract

The utility model discloses a high-temperature-resistant explosion-proof stainless steel pipe which comprises a pipe body, flange plates are installed at the two ends of the pipe body, the high-temperature-resistant explosion-proof stainless steel pipe further comprises a lantern ring, the lantern ring comprises an upper cambered surface plate and a lower cambered surface plate, the rear ends of the upper cambered surface plate and the lower cambered surface plate are hinged to each other, and the upper cambered surface plate and the lower cambered surface plate are buckled up and down. The steel pipe connecting structure comprises the steel pipe, the split type flange plates and the lantern ring, after the steel pipe is connected through the flange plates, the lantern ring can be arranged outside the two attached flange plates in a sleeving mode so as to further achieve sealing, and therefore the steel pipe connecting structure is simple in structure, convenient to use and high in practicability. A water immersion sensor is further mounted in the lantern ring, so that an alarm can be given when leakage occurs at the joint of the steel pipes; a plurality of protrusions and grooves are respectively arranged between the flange plates and the pipe body and between the flange plates, so that a plurality of sealing end faces are formed, the sealing effect is improved, and the leakage phenomenon is reduced.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe technology, and in particular to a high-temperature resistant and explosion-proof stainless steel pipe. Background Technology

[0002] Stainless steel pipes are widely used in media transmission due to their corrosion resistance, high strength, and hygienic properties.

[0003] Currently, as shown in the high-pressure explosion-proof seamless steel pipe disclosed in application number CN202322041471.4, steel pipes are generally connected by flanges, and sealing rings and other sealing components are installed inside the flanges to prevent leakage of the medium during transmission.

[0004] However, after prolonged use, the sealing rings of steel pipes are prone to damage and failure due to pipe vibration, abnormal temperature, or misalignment, leading to media leakage. Currently, steel pipes are generally not equipped with corresponding alarm devices, making it difficult to detect leaks at the connection points and posing production risks. Therefore, improvements are needed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-temperature resistant and explosion-proof stainless steel pipe to solve the problems mentioned in the background section.

[0006] This utility model provides the following technical solution: a high-temperature resistant explosion-proof stainless steel pipe, including a pipe body, flanges at both ends of the pipe body, and a collar, the collar including an upper arc panel and a lower arc panel that are hinged to each other at the rear and interlocked at the top and bottom, a slot is provided in both the upper arc panel and the lower arc panel, the left and right width of the slot is adapted to the width of the two flanges after the two pipe bodies are connected and the two flanges are abutted, the front ends of the upper arc panel and the lower arc panel are respectively integrally formed with a forward-extending connecting plate, and the two connecting plates can be connected by fasteners;

[0007] A water inlet is provided on the bottom surface of the lower arc panel, and a water immersion sensor is also installed on the lower side of the lower arc panel.

[0008] Preferably, the diameter of the left and right ends of the pipe increases so that the pipe is "thick at both ends and thin in the middle". The end face of the pipe is provided with a threaded groove, and the flange is threaded into the threaded groove.

[0009] Preferably, a first convex ring and a first annular groove are provided inside and outside the flange end face installed on one side of the pipe body, and a second annular groove and a second convex ring are provided inside and outside the flange end face installed on the other side of the pipe body, which are respectively adapted to the first convex ring and the first annular groove.

[0010] Preferably, the flange abuts against the bottom surface of the threaded groove, the outer curved surface of the threaded groove is provided with an outwardly penetrating stepped groove, and the outer curved surface of the portion of the flange inserted into the threaded groove is integrally formed with a stepped ring that presses against the end face of the stepped groove.

[0011] Preferably, the lower arc panel has an opening in the middle part in the front-to-back direction that widens in the left-to-right direction, so that a water channel is formed inside the lower arc panel.

[0012] Preferably, there is a gap between the inclined groove surface in the water inlet channel and the outer curved surface and edge of the flange.

[0013] Preferably, the lower end of the lower arc panel is also equipped with a water storage box, the water storage box is provided with a V-shaped groove connected to the seepage port, the immersion sensor is installed on the front inclined surface of the V-shaped groove, and the seepage port faces downward directly to the rear inclined surface of the V-shaped groove, and the bottom of the V-shaped groove is provided with a seepage groove.

[0014] This utility model provides a high-temperature resistant and explosion-proof stainless steel pipe, which has the following beneficial effects:

[0015] This utility model includes a steel pipe, a split flange and a collar. After the steel pipe is connected by the flange, the collar can be fitted over the two fitting flanges to further achieve a seal. The collar is also equipped with a water immersion sensor so that it can alarm when leakage occurs at the steel pipe connection.

[0016] In this invention, multiple protrusions and grooves are provided between the flange and the pipe body, and between the flanges themselves, to form multiple sealing end faces, thereby improving the sealing effect and reducing leakage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of this utility model (right end only);

[0018] Figure 2 This is a schematic diagram of the structure of this utility model when they are interconnected;

[0019] Figure 3 This is a schematic diagram of the appearance of the collar in this utility model;

[0020] Figure 4 This is a schematic diagram of the appearance of the present invention when the collar is connected and installed;

[0021] Figure 5 This is a schematic diagram of the right side of the collar structure in this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the tube body in this utility model.

[0023] In the picture:

[0024] 11. Pipe body; 12. Flange; 13. Collar; 14. Threaded groove; 15. No. 1 convex ring; 16. No. 1 ring groove; 17. No. 2 ring groove; 18. No. 2 convex ring; 19. Stepped groove; 20. Stepped ring; 51. Upper arc panel; 52. Lower arc panel; 53. Slot; 54. Connecting plate; 55. Water sensor; 56. Water storage box; 57. V-shaped cavity; 58. Water inlet trough. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Reference Figures 1-6According to an embodiment of the present invention, a high-temperature resistant explosion-proof stainless steel pipe includes a pipe body 11, and flanges 12 are installed at both ends of the pipe body 11. In this embodiment, the flanges 12 are connected to the pipe body 11 in such a way that the diameters of the left and right ends of the pipe body 11 increase, so that the pipe body 11 forms a shape that is "thick at both ends and thin in the middle". A threaded groove 14 is provided in the end face of the pipe body 11, and the flanges 12 are threadedly connected to the threaded groove 14.

[0030] In addition, such as Figure 3 The diagram also includes a collar 13, which comprises an upper arc panel 51 and a lower arc panel 52 that are hinged together at their rear ends and interlocked vertically. Both the upper arc panel 51 and the lower arc panel 52 have slots 53, the width of which is adapted to the width of the two pipe bodies 11 connected together and the two flanges 12 abutting each other. The front ends of the upper arc panel 51 and the lower arc panel 52 are each integrally formed with forward-extending connecting plates 54, and the two connecting plates 54 can be connected by fasteners (not shown in the diagram). Figure 4 As shown, after the two pipe bodies 11 are connected by the flange 12, the operator can put the collar 13 on the outside of the two mating flanges 12 to match the bolts and nuts (not shown in the figure) between the flanges 12 and further improve the tightness between the two flanges 12.

[0031] In order to enable automatic leak detection at the connection point after the pipe body 11 is connected, such as Figure 5 As shown, a water inlet 91 is provided in the bottom surface of the lower arc panel 52, and a water immersion sensor 55 is also installed on the lower side of the lower arc panel 52. If water seepage occurs between the two flanges 12, it can be sensed by the water immersion sensor 55 and an alarm will be triggered.

[0032] The specific installation method of the immersion sensor 55 is as follows: a water storage box 56 is also installed at the lower end of the lower arc panel 52. The water storage box 56 is provided with a V-shaped groove 57 that communicates with the seepage port. The immersion sensor 55 is installed on the front inclined surface of the V-shaped groove 57, and the seepage port faces downward and is directly opposite the rear inclined surface of the V-shaped groove 57. In addition, the lower arc panel 52 is widened to the left and right in the middle part in the front-back direction so that a water inlet groove 58 is formed in the lower arc panel 52. A seepage groove is provided at the bottom of the V-shaped groove 57. There is a gap between the inclined groove surface in the water inlet groove 58 and the outer curved surface and edge of the flange 12.

[0033] like Figure 4As shown, after the pipe bodies 11 are connected to each other, if leakage occurs between the two flanges 12, it is very obvious that the medium in the pipe body 11 will enter the V-groove 57 and accumulate, triggering the immersion sensor 55 to trigger an alarm. If leakage occurs at the connection between the pipe body 11 and the flange 13, the medium will flow down and enter the V-groove 57 through the water channel 58 and the seepage hole, triggering the immersion sensor 55.

[0034] The purpose of the seepage groove is to prevent condensation on the flange 12 from dripping and accumulating in the V-groove 57 and accidentally triggering the water sensor 55. The water sensor 55 can only be triggered when the leakage reaches a certain flow rate. In addition, if the high-temperature resistant explosion-proof stainless steel pipe is used in an environment with controlled humidity, the seepage groove can be sealed to avoid missed detection.

[0035] In addition, the inside of the tube 11 is coated with a heat-insulating coating to increase the heat resistance of the tube 11 and reduce the possible condensation phenomenon.

[0036] To increase the sealing between the two flanges 12 when the pipe bodies 11 are connected, a first convex ring 15 and a first annular groove 16 are provided inside the end face of the flange 12 installed on one side of the pipe body 11, and a second annular groove 17 and a second convex ring 18 are provided inside the end face of the flange 12 installed on the other side of the pipe body 11, which are respectively adapted to the first convex ring 15 and the first annular groove 16.

[0037] Furthermore, the flange 12 abuts against the bottom surface of the threaded groove 14, and the outer curved surface of the threaded groove 14 is provided with an outwardly penetrating stepped groove 19. The outer curved surface of the portion of the flange 12 inserted into the threaded groove 14 is integrally formed with a stepped ring 20 that presses against the end face of the stepped groove 19.

[0038] Sealing rings can be installed in the bottom surfaces of the first annular groove 16, the second annular groove 17, the stepped ring 20, and the threaded groove 14. Through the above-mentioned labyrinth structure, the sealing performance between the flanges 12 and between the pipe body 11 and the flanges 12 can be greatly increased, reducing the risk of leakage.

[0039] It should be noted that after two or more pipe bodies 11 are connected to each other through the flanges 12, the flanges 12 are locked together by bolts and nuts. In addition, the immersion sensor 55 can have a built-in buzzer or can remotely alarm through a built-in wireless communication module. This is existing technology and will not be described in detail here.

[0040] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A high temperature resistant, explosion-proof, stainless steel pipe comprising a pipe body (11), characterized in that: The pipe body (11) is equipped with flanges (12) at both ends and also includes a collar (13). The collar (13) includes an upper arc panel (51) and a lower arc panel (52) that are hinged to each other at the rear end and interlocked at the top and bottom. The upper arc panel (51) and the lower arc panel (52) are provided with slots (53). The width of the slots (53) is adapted to the width of the two flanges (12) after the two pipe bodies (11) are connected and abut against each other. The front ends of the upper arc panel (51) and the lower arc panel (52) are respectively integrally formed with forward-extending connecting plates (54), and the two connecting plates (54) can be connected by fasteners. A water inlet is provided on the bottom surface of the lower arc panel (52), and a water immersion sensor (55) is also installed on the lower side of the lower arc panel (52).

2. The high temperature resistant explosion-proof stainless steel pipe according to claim 1, characterized in that: The diameter of the left and right ends of the tube (11) increases so that the tube (11) forms a shape that is "thick at both ends and thin in the middle". A threaded groove (14) is provided in the end face of the tube (11), and the flange (12) is threaded into the threaded groove (14).

3. The high temperature resistant explosion-proof stainless steel pipe according to claim 1, characterized in that: The flange (12) installed on one side of the pipe body (11) has a first convex ring (15) and a first annular groove (16) distributed inside and outside. The flange (12) installed on the other side of the pipe body (11) has a second annular groove (17) and a second convex ring (18) distributed inside and outside and adapted to the first convex ring (15) and the first annular groove (16) respectively.

4. The high temperature resistant explosion-proof stainless steel pipe according to claim 2, characterized in that: The flange (12) abuts against the bottom surface of the threaded groove (14). The outer curved surface of the threaded groove (14) is provided with an outwardly penetrating stepped groove (19), and a stepped ring (20) is integrally formed on the outer curved surface of the portion of the flange (12) inserted into the threaded groove (14) and pressed against the end face of the stepped groove (19).

5. The high temperature resistant explosion-proof stainless steel pipe according to claim 2, characterized in that: The lower arc panel (52) is widened to the left and right in the middle part of the front-to-back direction so that a water channel (58) is formed inside the lower arc panel (52).

6. A high temperature resistant explosion-proof stainless steel pipe according to claim 5, characterized in that: There is a gap between the inclined groove surface in the water inlet channel (58) and the outer curved surface and edge of the flange (12).

7. The high temperature resistant explosion-proof stainless steel pipe according to claim 5, characterized in that: The lower end of the lower arc panel (52) is also equipped with a water storage box (56). The water storage box (56) is provided with a V-shaped groove (57) connected to the seepage port. The immersion sensor (55) is installed on the front inclined surface inside the V-shaped groove (57), and the seepage port faces downward directly to the rear inclined surface inside the V-shaped groove (57). The bottom of the V-shaped groove (57) is provided with a seepage groove.

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