Flexible joint false tube and installation method thereof

Abstract

The invention provides a flexible joint false tube and a mounting method thereof, the flexible joint false tube comprises a first flange and a second flange, an included angle is formed between the second flange and the axis of the first flange, and the first flange and the second flange extend outwards to form a first eye plate and a second eye plate respectively; and the studs are connected in a penetrating manner through bolt holes which are oppositely formed in the first eye plate and the second eye plate, and are bidirectionally locked through nuts. By adjusting the distance between the two flanges, the length of the false pipe is equal to that of a replaced flexible joint, and the technical problem that the flexible joint deforms in the links such as hoisting installation is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of assembly technology, in particular to a flexible joint dummy pipe and a method for installing the same. BACKGROUND

[0002] Currently, a plurality of devices that generate relatively large vibrations during operation are equipped on a ship. In order to reduce the damage of the vibrating devices to the interface pipeline, especially for the ships with high requirements for noise and vibration, a general measure is to use a flexible joint on the device interface pipeline. Most of such flexible joints are rubber flexible joints.

[0003] In modern shipbuilding, in order to reduce construction difficulty and speed up construction speed, a large number of devices, pipes, electrical and outfitting integrated comprehensive functional units are designed, and these units are generally assembled in a ground workshop. If a real rubber flexible joint is used to connect the devices and their inlet and outlet pipelines during the unit manufacturing and installation process, the flexible joint will be deformed to different degrees during the later unit hoisting process, and it cannot be ensured that the flexible joint can be normally used on the ship after hoisting. The flexible joint that cannot be used needs to be scrapped and replaced.

[0004] Therefore, a flexible joint dummy pipe and a method for installing the same are urgently needed to help solve the technical problem of deformation of the flexible joint during hoisting and installation. SUMMARY

[0005] The present application provides a flexible joint dummy pipe, which is equal in length to the replaced flexible joint by adjusting the distance between two flanges, and helps to solve the technical problem of deformation of the flexible joint during hoisting and installation.

[0006] The flexible joint dummy pipe comprises:

[0007] a first flange;

[0008] a second flange, which is arranged at an included angle with the axis of the first flange, and the first flange and the second flange extend outward to form respective first eye plates and second eye plates;

[0009] a plurality of full-thread studs, which are connected by penetrating through bolt holes oppositely arranged on the first eye plate and the second eye plate, and are locked in both directions by nuts.

[0010] In an embodiment, the first flange has a first mounting hole, and the second flange has a second mounting hole.

[0011] In an embodiment, the included angle a is 0 degrees or 90 degrees.

[0012] In an embodiment, the bolt holes are oppositely arranged and uniformly distributed on the circumference.

[0013] In an embodiment, the length of the docking flexible joint is 95-325mm, and the length of the stud is 250mm.

[0014] In an embodiment, the stud 5 is formed by a right angle bend when the included angle is 90 degrees.

[0015] In an embodiment, the present application further provides a method for installing a flexible joint dummy pipe based on the flexible joint dummy pipe as described, the method further comprising:

[0016] inserting the flexible joint into the first flange and the second flange;

[0017] adjusting the distance between the first flange and the second flange by the nut.

[0018] In an embodiment, the step of adjusting the distance between the first flange and the second flange by the nut comprises:

[0019] loosening the outer nut;

[0020] adjusting the distance of the inner nut;

[0021] tightening the outer nut.

[0022] In an embodiment, after the step of adjusting the distance between the first flange and the second flange by the nut, the method further comprises:

[0023] hoisting the flexible joint dummy pipe.

[0024] In an embodiment, the bosses of the first flange and the second flange are outwardly arranged. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a top view schematic diagram of a first type of flexible joint dummy pipe in an embodiment of the present application;

[0026] Figure 2 is a side view schematic diagram of a first type of flexible joint dummy pipe in another embodiment of the present application;

[0027] Figure 3 is a top view schematic diagram of a second type of flexible joint dummy pipe in another embodiment of the present application;

[0028] Figure 4 is a side view schematic diagram of a second type of flexible joint dummy pipe in another embodiment of the present application;

[0029] Figure 5 is a side view schematic diagram of a third type of flexible joint dummy pipe in another embodiment of the present application;

[0030] Figure 6 is a schematic diagram of a first spatial position of an equipment unit in another embodiment of the present application;

[0031] Figure 7 Fig. 2 is a schematic view of a second spatial position of the device unit in another embodiment of the application.

[0032] Reference numerals:

[0033] First flange 1

[0034] First mounting hole 11

[0035] Second flange 2

[0036] Second mounting hole 21

[0037] First eye plate 3

[0038] Second eye plate 4

[0039] Stud 5

[0040] Nut 6

[0041] Angle a DETAILED DESCRIPTION

[0042] In order to better understand the technical solutions of the present application, the present application will be described in detail below in combination with the drawings and specific embodiments.

[0043] The various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0044] These and other characteristics of the present application will become apparent from the following description of the preferred forms given, by way of non-limiting example, with reference to the attached drawings.

[0045] It is also to be understood that even though a number of specific examples have been described herein, many other equivalents and modifications thereof are possible in light of the above teachings. It is therefore to be understood that the present application is not to be limited to the specific examples set forth above nor to the examples shown in the drawings. Rather, the scope of the present application is to be defined as set forth in the appended claims, and equivalents thereof, as broadly as the technical sphere covered by the claims permits.

[0046] The above and other aspects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:

[0047] Specific embodiments of the present application are described herein with reference to the accompanying drawings. However, it should be understood that the application is not limited to the particular embodiments described herein, but is capable of a variety of arrangements and functions. The specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present application.

[0048] This specification can use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments" to convey that one or more of the same or different embodiments can be used.

[0049] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be described in detail below in conjunction with the drawings and specific embodiments.

[0050] The various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0051] These and other characteristics of the present application will become apparent from the following description of the preferred forms thereof given, by way of non-limiting example only, with reference to the accompanying drawings.

[0052] It should also be understood that, although the present application has been described herein with reference to particular embodiments thereof, many other embodiments will be readily apparent to those skilled in the art and can be made without departing from the spirit and scope of the application, which are indicated by the appended claims.

[0053] The above and other aspects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:

[0054] Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the claimed embodiments are merely examples of the present application, which can be implemented in numerous ways. Well-known and / or redundant functions and structures are not described in detail to avoid obscuring the present application unnecessarily in accordance with the user's history of operation, to determine the true intention, to avoid unnecessary or redundant details that would make the present application obscure. Therefore, the specific structural and functional details described herein are not intended to be limiting, but are merely used as a basis for the claims and a representative basis for teaching those skilled in the art to use the present application in substantially any appropriate detailed structure.

[0055] This specification can use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments" to convey that one or more of the same or different embodiments can be used.

[0056] The present application solves the problem of deformation of the flexible joint during hoisting, and saves the time and cost of re-purchasing and installing the flexible joint by making a dummy pipe instead.

[0057] An eye plate is welded on the flanges at both ends, a stud is penetrated through the hole of the eye plate, and a nut is used to adjust the distance between the two flanges, and the fastening of the stud and the nut is used to realize that the length of the dummy pipe is consistent with that of the replaced flexible joint.

[0058] Figure 1 Fig. 1 is a top view of a first type of flexible joint false pipe according to an embodiment of the present application; Figure 2 Fig. 2 is a side view of a first type of flexible joint false pipe according to another embodiment of the present application; Figure 3 Fig. 3 is a top view of a second type of flexible joint false pipe according to another embodiment of the present application; Figure 4 Fig. 4 is a side view of a second type of flexible joint false pipe according to another embodiment of the present application; Figure 5 Fig. 5 is a side view of a third type of flexible joint false pipe according to another embodiment of the present application.

[0059] As shown in Fig. 1, in an embodiment, the present application provides a flexible joint false pipe, which comprises: Figures 1 to 5 a first flange 1;

[0060] a second flange 2, which is arranged at an angle a with respect to the axis of the first flange 1, and the first flange 1 and the second flange 2 extend outwardly to form respective first eye plates 3 and second eye plates 4;

[0061] a plurality of full-thread studs 5, which are connected by being inserted through bolt holes arranged oppositely on the first eye plates 3 and the second eye plates 4, and are locked in both directions by nuts 6.

[0062] In an embodiment, the first flange 1 has a first mounting hole 11, and the second flange 2 has a second mounting hole 21.

[0063] In an embodiment, the angle a is 0 degrees or 90 degrees.

[0064] In an embodiment, the bolt holes are arranged oppositely and uniformly distributed on the circumference.

[0065] In an embodiment, the length of the flexible joint is 95-325 mm, and the length of the stud is 250 mm.

[0066] In an embodiment, when the angle a is 90 degrees, the stud 5 is formed by a right-angle bend.

[0067] In an embodiment, the present application further provides a mounting method of a flexible joint false pipe, which is based on the flexible joint false pipe as described, and further comprises:

[0068] inserting the flexible joint into the first flange 1 and the second flange 2;

[0069] adjusting the distance between the first flange 1 and the second flange 2 by the nuts 6.

[0070] In an embodiment, the adjusting the distance between the first flange and the second flange by the nuts comprises:

[0071]

[0072] ​Loosen the outer nut;

[0073] Adjust the distance of the inner nut;

[0074] Lock the outer nut.

[0075] In an embodiment, after the step of adjusting the distance between the first flange and the second flange by the nut, the method further comprises:

[0076] Hoist the flexible joint pipe.

[0077] In an embodiment, the bosses of the first flange 1 and the second flange 2 are outwardly arranged.

[0078] Components:

[0079] Flange

[0080] Eye plate

[0081] 3, stud

[0082] 4, nut

[0083] The number of eye plates and studs can be appropriately selected, such as 3 or 4.

[0084] The length of the stud is appropriately selected according to the length of the commonly used flexible joint, such as a flexible joint length of 95-325mm, a small diameter flange can select a 250mm long stud, and a large diameter flange can select a 400mm long stud, to achieve better adjustment capability of the pipe.

[0085] The size of the stud nut thread is selected to match the eye plate hole, such as an eye plate hole of ￠18, and a stud and nut of M16.

[0086] Assembly relationship:

[0087] The eye plate is welded to the outer circle of the flange plate, and is uniformly distributed;

[0088] A stud is screwed into each end of the nut;

[0089] The stud is assembled with the flange plate at both ends;

[0090] A stud is screwed into each end of the nut.

[0091] Common types:

[0092] Straight through equal diameter pipe:

[0093] The same outer diameter flange is used at both ends, and the same size eye plate, straight stud and nut are used.

[0094] The scheme is as shown in Figure 1 .

[0095] Straight through unequal diameter pipe:

[0096] Two ends adopt different outer diameter flanges, use the same size straight stud and nut, at this moment, different size eye plate needs to be used.

[0097] The height of the eye plate hole of two ends is consistent by increasing the small flange end eye plate (the eye plate increase value is the difference of the radius of the large and small flanges).

[0098] The scheme is shown as Figure 2 .

[0099] Right angle equal diameter false pipe:

[0100] Two ends adopt the same outer diameter flange, use the same size eye plate and nut, at this moment, different length right angle stud needs to be used. The right angle stud can be obtained by bending operation on the straight stud.

[0101] The scheme is shown as Figure 3 .

[0102] Beneficial effects:

[0103] Simple structure, convenient material taking, convenient and fast disassembly and installation. Strong function, can flexibly adjust the installation length according to actual needs. Green and environmental protection, all parts can be reused. Mainly can replace and protect the flexible joint, save the repeated purchase cost of the flexible joint.

[0104] Figure 6 It is a first space position schematic view of the equipment unit in another embodiment of the application; Figure 7 It is a second space position schematic view of the equipment unit in another embodiment of the application. As shown in Figures 6 to 7 , in actual application, many equipment can be pre-assembled in the assembly workshop. In the assembly method, the equipment units are first fixedly connected in space, but even if the fixed equipment units are fixedly connected, the joints of the flexible pipelines are prone to dislocation and damage between them, and the space position of the flexible pipelines is directly connected or has a certain angle (i.e. 90 degrees). If it is not a regular angle, the angle of the stud can be corrected by heating.

[0105] The installation method comprises:

[0106] Placing the equipment unit in a predetermined position, and installing a fixing frame to form a rigid whole structure;

[0107] Hoisting the rigid whole structure to a loading tool;

[0108] Installing a flexible joint false pipe on the flexible interface of the equipment unit.

[0109] Specifically, the installation of the flexible joint false pipe on the flexible interface of the equipment unit should further comprise:

[0110] The first flange and the second flange are installed on the flexible interface in butt joint by the flanges on the equipment units;

[0111] Then the distance is adjusted by the position of the nut on the stud, and finally the nut is locked, so that the rigid overall structure is further improved in rigidity at the flexible interface, resisting the damage of vibration in transportation to the interface.

[0112] The above embodiments are only exemplary embodiments of the present application, and are not used to limit the present application, and the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements shall also be considered to fall within the protection scope of the present application.

Claims

1. A flexible joint false pipe, characterized in that: The flexible joint false pipe comprises: a first flange (1); a second flange (2) arranged at an angle (a) with the axis of the first flange (1), the first flange (1) and the second flange (2) extending outward to form a respective first eye plate (3) and second eye plate (4); A plurality of fully threaded studs (5) are connected through bolt holes arranged opposite to each other in the first eye plate (3) and the second eye plate (4), and are bidirectionally locked by nuts (6).

2. The flexible joint false pipe according to claim 1, characterized in that: The first flange (1) has a first mounting hole (11), and the second flange (2) has a second mounting hole (21).

3. The flexible joint false pipe according to claim 2, characterized in that: The angle (a) is 0 degrees or 90 degrees.

4. The flexible joint false pipe according to claim 3, characterized in that: The bolt holes are arranged relatively to each other and are evenly distributed around the circumference.

5. The flexible joint false pipe according to claim 4, characterized in that: The length of the butted flexible joint is 95-325 mm, and the length of the stud is 250 mm.

6. The flexible joint false pipe according to claim 5, characterized in that: When the included angle is 90 degrees, the stud (5) is formed by bending at a right angle.

7. A method for installing a flexible joint false pipe, characterized in that: Based on the flexible joint false pipe according to any one of claims 1 to 6, the installation method further comprises: Inserting a flexible joint into the first flange (1) and the second flange (2); The distance between the first flange (1) and the second flange (2) is adjusted by the nut (6).

8. The method for installing a flexible joint false pipe according to claim 7, characterized in that: The adjusting the distance between the first flange and the second flange by the nut includes: Loosen the outer nut; Adjust the distance of the inner nut; Tighten the outer nut.

9. The method for installing a flexible joint false pipe according to claim 8, characterized in that: After the step of adjusting the distance between the first flange and the second flange by using the nut, the method further includes: The flexible joint false pipe is hoisted.

10. The method for installing a flexible joint false pipe according to claim 9, wherein: The bosses of the first flange (1) and the second flange (2) are arranged outwards.

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