Petrochemical engineering pipeline connecting structure

Abstract

The utility model discloses a petrochemical engineering pipeline connecting structure, and relates to the technical field of pipeline connecting structures, the petrochemical engineering pipeline connecting structure comprises a mounting mechanism, the mounting mechanism comprises a first butt joint pipeline and a C-shaped ring arranged on the outer wall of the end part of the first butt joint pipeline, and the upper half inner wall of the C-shaped ring is fixedly connected with the outer wall of the first butt joint pipeline; the sealing mechanism comprises a fixing ring fixedly arranged on the inner wall of the first butt joint pipeline, and a first sealing gasket is fixedly connected to one side wall of the fixing ring. According to the petrochemical engineering pipeline connecting structure, a worker rotates the handle end to drive the lead screw to rotate, the characteristic that the lead screw is movably connected into the internal thread groove hole is utilized, then the lead screw moves downwards, the lower end of the lead screw extrudes the pressure bearing plate, and due to the fact that the inner wall of the upper half of the C-shaped ring is fixedly connected with the outer wall of the first butt joint pipeline, the pressure bearing plate is clamped. The lower half inner wall of the C-shaped ring makes contact with but is not fixedly connected with the outer wall of the first butt joint pipeline, then the lower half portion of the C-shaped ring is driven to be expanded, and workers can complete assembling work conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection structures, in particular to a petrochemical pipeline connection structure. Background Art

[0002] At present, pipeline connection refers to connecting the prefabricated pipe sections into a complete system according to the requirements of the design drawings; the connection methods include threaded connection, flange connection, welding connection, socket connection, pipe bonding connection and other methods, among which welding is one of the common methods for connecting pipes. In the petrochemical industry, commonly used welding methods include arc welding, gas welding, TIG (tungsten inert gas welding) and MIG (metal inert gas welding). Welding connection can provide strong connection strength and sealing, and is suitable for high-pressure, high-temperature and special medium pipeline systems.

[0003] When the petrochemical pipelines in the prior art are butt-jointed by welding, the welding sleeve on the outer wall of the pipeline is made of rigid material, and its inner diameter is consistent with the outer diameter of the welding sleeve on the outer wall of the other end of the pipeline, in order to ensure the sealing during assembly. However, in the actual assembly process, it is difficult for the staff to easily insert and assemble the two welding sleeves, and the sealing ring may be affected by temperature, which may lead to poor sealing at the joint. Utility Model Content

[0004] The purpose of the utility model is to provide a petrochemical pipeline connection structure to solve the problems raised in the above background technology.

[0005] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0006] A petrochemical pipeline connection structure, comprising

[0007] The installation mechanism comprises a first docking pipe and a C-shaped ring arranged on the outer wall of the end of the first docking pipe, the upper inner wall of the C-shaped ring is fixedly connected to the outer wall of the first docking pipe, one end of the first docking pipe is plugged and connected to the second docking pipe, the outer wall of the end of the second docking pipe is fixedly connected to a welding sleeve, the outer wall of the welding sleeve is in contact with the inner wall of the C-shaped ring, and a spreading component is provided on one side of the C-shaped ring;

[0008] The sealing mechanism includes a fixing ring fixedly arranged on the inner wall of the first docking pipe, a first sealing ring gasket is fixedly connected to one side wall of the fixing ring, a mounting ring seat is fixedly connected to the inner wall of the second docking pipe, a second sealing ring gasket is provided on one side of the mounting ring seat, a side wall of the second sealing ring gasket is in extrusion contact with a side wall of the first sealing ring gasket, and an elastic connecting component is provided between the second sealing ring gasket and the mounting ring seat.

[0009] Preferably, the expansion assembly includes a perforated plate and a pressure plate, one end of the perforated plate is fixedly connected to the upper outer wall of the C-shaped ring, and one end of the pressure plate is fixedly connected to the lower outer wall of the C-shaped ring.

[0010] Preferably, the expansion assembly further includes a screw rod and a handle end, an internal threaded slot hole is provided on the upper wall of the orifice plate, the screw rod is movably connected in the internal threaded slot hole, and the lower end of the handle end is fixedly connected to the upper end of the screw rod.

[0011] Preferably, the elastic connection assembly includes a spring, a side wall of the mounting ring seat is provided with a plurality of mounting holes, and one end of the spring is fixedly connected to the inner wall of the mounting hole.

[0012] Preferably, the elastic connection assembly further comprises a movable column, which is slidably disposed in the mounting hole, and two ends of the movable column are respectively fixedly connected to the other end of the spring and a side wall of the second sealing ring gasket.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model enables a staff member to rotate the handle end to drive the screw rod to rotate, and utilizes the characteristic that the screw rod is movably connected to the internal threaded groove hole, thereby moving the screw rod downward and causing the lower end of the screw rod to squeeze the pressure plate. Since the upper inner wall of the C-shaped ring is fixedly connected to the outer wall of the first docking pipe, its lower inner wall is in contact with the outer wall of the first docking pipe but is not fixedly connected, thereby driving the lower half of the C-shaped ring to expand, making it convenient for staff to complete the assembly work.

[0015] When one end of the first butt-jointed pipe is plugged and connected with one end of the second butt-jointed pipe, one side wall of the second sealing ring gasket is in contact and squeezed with one side wall of the first sealing ring gasket to play a sealing role. When the temperature changes and the volume of the sealing ring changes, the spring and the movable column are provided to facilitate elastic squeezing to ensure high sealing performance at the pipe connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the external structure of a petrochemical pipeline connection structure;

[0017] Figure 2 It is a first-view structural schematic diagram of a petrochemical pipeline connection structure;

[0018] Figure 3 It is a schematic diagram of the structure of the installation mechanism of a petrochemical pipeline connection structure;

[0019] Figure 4 This is a schematic diagram of the explosion structure of a petrochemical pipeline connection structure.

[0020] In the figure: 100, installation mechanism; 101, first docking pipe; 102, C-ring; 103, second docking pipe; 104, welding sleeve; 105, orifice plate; 106, pressure plate; 107, screw rod; 108, handle end; 200, sealing mechanism; 201, fixing ring; 202, first sealing ring gasket; 203, mounting ring seat; 204, second sealing ring gasket; 205, spring; 206, mounting hole; 207, movable column. DETAILED DESCRIPTION

[0021] 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.

[0022] Embodiment 1:

[0023] See also Figure 1-Figure 4 As shown, the utility model is a petrochemical pipeline connection structure, including

[0024] The installation mechanism 100 includes a first docking pipe 101 and a C-shaped ring 102 arranged on the outer wall of the end of the first docking pipe 101. The upper inner wall of the C-shaped ring 102 is fixedly connected to the outer wall of the first docking pipe 101. One end of the first docking pipe 101 is plugged and connected with a second docking pipe 103. The outer wall of the end of the second docking pipe 103 is fixedly connected with a welding sleeve 104. The outer wall of the welding sleeve 104 is in contact with the inner wall of the C-shaped ring 102. A spreading component is provided on one side of the C-shaped ring 102.

[0025] The sealing mechanism 200 includes a fixing ring 201 fixedly arranged on the inner wall of the first docking pipe 101, a first sealing ring gasket 202 is fixedly connected to one side wall of the fixing ring 201, a mounting ring seat 203 is fixedly connected to the inner wall of the second docking pipe 103, a second sealing ring gasket 204 is provided on one side of the mounting ring seat 203, a side wall of the second sealing ring gasket 204 is in compression contact with a side wall of the first sealing ring gasket 202, and an elastic connecting component is provided between the second sealing ring gasket 204 and the mounting ring seat 203.

[0026] Depend on Figure 1-Figure 3 It can be seen that the expansion assembly includes a perforated plate 105 and a pressure plate 106 , one end of the perforated plate 105 is fixedly connected to the upper outer wall of the C-shaped ring 102 , and one end of the pressure plate 106 is fixedly connected to the lower outer wall of the C-shaped ring 102 .

[0027] The expansion assembly also includes a screw rod 107 and a handle end 108 . An internal threaded slot is provided on the upper wall of the orifice plate 105 . The screw rod 107 is movably connected in the internal threaded slot. The lower end of the handle end 108 is fixedly connected to the upper end of the screw rod 107 .

[0028] As can be seen from the above, when the staff needs to dock one end of the second docking pipe 103 with one end of the first docking pipe 101 during use, in order to prevent the staff from having difficulty in completing the docking more conveniently, at this time, the staff rotates the handle end 108 to drive the screw rod 107 to rotate, and uses the characteristic that the screw rod 107 is movably connected to the internal threaded slot hole, thereby moving the screw rod 107 downward, and causing the lower end of the screw rod 107 to squeeze the pressure plate 106. Since the upper inner wall of the C-shaped ring 102 is fixedly connected to the outer wall of the first docking pipe 101, its lower inner wall is in contact with the outer wall of the first docking pipe 101 but is not fixedly connected, thereby driving the lower half of the C-shaped ring 102 to expand, making it easier for the staff to complete the assembly work;

[0029] After insertion, the personnel rotate the screw rod 107 in the opposite direction so that one end of the screw rod 107 no longer presses against the pressure plate 106, so that the inner wall of the C-shaped ring 102 is completely in contact with the outer wall of the first docking pipe 101. After that, the personnel weld the C-shaped ring 102 and the welding sleeve 104 to complete the docking work.

[0030] Embodiment 2:

[0031] The installation mechanism 100 includes a first docking pipe 101 and a C-shaped ring 102 arranged on the outer wall of the end of the first docking pipe 101. The upper inner wall of the C-shaped ring 102 is fixedly connected to the outer wall of the first docking pipe 101. One end of the first docking pipe 101 is plugged and connected with a second docking pipe 103. The outer wall of the end of the second docking pipe 103 is fixedly connected with a welding sleeve 104. The outer wall of the welding sleeve 104 is in contact with the inner wall of the C-shaped ring 102. A spreading component is provided on one side of the C-shaped ring 102.

[0032] The sealing mechanism 200 includes a fixing ring 201 fixedly arranged on the inner wall of the first docking pipe 101, a first sealing ring gasket 202 is fixedly connected to one side wall of the fixing ring 201, a mounting ring seat 203 is fixedly connected to the inner wall of the second docking pipe 103, a second sealing ring gasket 204 is provided on one side of the mounting ring seat 203, a side wall of the second sealing ring gasket 204 is in compression contact with a side wall of the first sealing ring gasket 202, and an elastic connecting component is provided between the second sealing ring gasket 204 and the mounting ring seat 203.

[0033] refer to Figure 1 and Figure 4 As shown, the elastic connection assembly includes a spring 205 , and a plurality of mounting holes 206 are formed on one side wall of the mounting ring seat 203 . One end of the spring 205 is fixedly connected to the inner wall of the mounting hole 206 .

[0034] The elastic connection assembly further includes a movable column 207 , which is slidably disposed in the mounting hole 206 , and two ends of the movable column 207 are fixedly connected to the other end of the spring 205 and a side wall of the second sealing ring gasket 204 , respectively.

[0035] As can be seen from the above, when one end of the first docking pipe 101 is plugged into and docked with one end of the second docking pipe 103, one side wall of the second sealing ring gasket 204 is in contact and squeezed with one side wall of the first sealing ring gasket 202 to play a sealing role, and when the temperature changes and causes the volume of the sealing ring to change, the spring 205 and the movable column 207 are provided to facilitate elastic squeezing to ensure high sealing of the pipe connection.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0039] 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.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A petrochemical pipeline connection structure, characterized in that: include The installation mechanism (100) comprises a first docking pipe (101) and a C-shaped ring (102) arranged on the outer wall of the end of the first docking pipe (101), the upper inner wall of the C-shaped ring (102) being fixedly connected to the outer wall of the first docking pipe (101), one end of the first docking pipe (101) being plugged and connected to a second docking pipe (103), the outer wall of the end of the second docking pipe (103) being fixedly connected to a welding sleeve (104), the outer wall of the welding sleeve (104) being in contact with and in contact with the inner wall of the C-shaped ring (102), and a spreading component being provided on one side of the C-shaped ring (102); The sealing mechanism (200) comprises a fixing ring (201) fixedly arranged on the inner wall of a first docking pipe (101), a first sealing ring gasket (202) being fixedly connected to one side wall of the fixing ring (201), a mounting ring seat (203) being fixedly connected to the inner wall of the second docking pipe (103), a second sealing ring gasket (204) being provided on one side of the mounting ring seat (203), a side wall of the second sealing ring gasket (204) being in compression contact with a side wall of the first sealing ring gasket (202), and an elastic connection component being provided between the second sealing ring gasket (204) and the mounting ring seat (203).

2. A petrochemical pipeline connection structure according to claim 1, characterized in that: The expansion assembly comprises a perforated plate (105) and a pressure plate (106), one end of the perforated plate (105) being fixedly connected to the upper outer wall of the C-shaped ring (102), and one end of the pressure plate (106) being fixedly connected to the lower outer wall of the C-shaped ring (102).

3. A petrochemical pipeline connection structure according to claim 2, characterized in that: The expansion assembly also includes a screw rod (107) and a handle end (108). An internal threaded slot hole is provided on the upper wall of the orifice plate (105). The screw rod (107) is movably connected in the internal threaded slot hole. The lower end of the handle end (108) is fixedly connected to the upper end of the screw rod (107).

4. A petrochemical pipeline connection structure according to claim 1, characterized in that: The elastic connection component comprises a spring (205), a side wall of the mounting ring seat (203) is provided with a plurality of mounting holes (206), and one end of the spring (205) is fixedly connected to the inner wall of the mounting hole (206).

5. A petrochemical pipeline connection structure according to claim 4, characterized in that: The elastic connection assembly also includes a movable column (207), which is slidably disposed in the mounting hole (206), and the two ends of the movable column (207) are respectively fixedly connected to the other end of the spring (205) and a side wall of the second sealing ring gasket (204).

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