Pipe end sealing device for hydraulic processing of steel pipe
By designing a synchronous compression device for the inner and outer sealing parts of the steel pipe, water injection operations are achieved using water passage holes and slots, the problem of poor sealing of steel pipe hydraulic test in the prior art is solved, and sealing detection is improved Efficiency and ensure the forming effect of the composite layer.
Patent Information
- Application Number
- CN202420076215.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-11
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-01-11
AI Technical Summary
In the prior art, the sealing effect of steel pipes is poor during hydraulic pressure testing, and water leakage is prone to leakage under high pressure, which affects the sealing detection efficiency, and water leakage leads to insufficient water pressure in the steel pipe, affecting the composite effect.
Design a steel pipe hydraulic processing pipe end sealing device, including a relatively fixed and concentric inner seal and an outer sealing part. The steel pipe end is synchronized by the inner seal and the outer sealing part, and the inner sealing ring and the outer sealing ring are used. The inner and outer walls of the steel pipe are tightly sealed, and water passage holes and slots are installed to achieve water injection operations to ensure sealing.
It effectively improves the sealing of the ends of the steel pipe, avoids water leakage, ensures the sealing test effect of high-pressure water in the inner cavity of the steel pipe, and facilitates the forming and inspection of the steel pipe composite layer.
Smart Images
Figure CN222277477U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water pressure sealing of steel pipes, in particular to a water pressure processed pipe end sealing device for steel pipes. Background Art
[0002] During the production and manufacturing process of steel pipes, they need to be subjected to a water pressure test after forming to test their pressure-bearing performance. In addition, for composite steel pipes, a functional layer needs to be bonded to the inner wall of the steel pipe. The commonly used processing method is to fill the inner cavity of the steel pipe with high-pressure water so that the functional layer and the outer wall of the steel pipe are completely bonded and formed. The name disclosed in the prior art is a pressure tester for a spiral steel pipe, and the utility model patent with the announcement number CN210923315U includes a pressure tester body, two guide rails parallel to each other and perpendicular to the side of the pressure tester body are arranged on one side of the pressure tester body, a slide seat is slidably arranged on the guide rail, and a driving device for driving the slide seat to slide along the length direction of the guide rail is arranged on the guide rail, a push rod is vertically hinged on the slide seat, and a limit block is fixed on the side of the push rod away from the pressure tester body on the slide seat for preventing the push rod from flipping in the direction away from the pressure tester body. The patent adopts the pressure tester body to extrude the two end faces of the steel pipe. The prior art including the above-mentioned patent scheme generally has poor end sealing and is prone to water leakage under high pressure, which affects the efficiency of sealing detection. At the same time, water leakage can easily lead to insufficient water pressure in the steel pipe, affecting the composite effect of the steel pipe. Utility Model Content
[0003] The utility model aims to provide a steel pipe water pressure processing pipe end sealing device, which is used to solve the technical problem of poor sealing effect during water pressure testing of steel pipes in the prior art.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A steel pipe water pressure processing pipe end sealing device comprises an inner sealing part and an outer sealing part which are relatively fixed and concentrically installed, a gap for inserting the steel pipe end is provided between the inner sealing part and the outer sealing part, the inner sealing part and the outer sealing part can synchronously press or loosen the steel pipe end inserted into the gap, and the inner sealing part and the outer sealing part seal the steel pipe end when synchronously pressing the steel pipe.
[0006] Furthermore, the inner sealing part includes an inner clamping seat installed on the base and an inner pressure cover installed on the inner clamping seat, and an inner sealing ring is arranged between the inner clamping seat and the inner pressure cover. When the inner sealing ring is injected with water, it is displaced to tighten the inner wall of the end of the steel pipe.
[0007] Furthermore, a water channel through hole is arranged inside the inner card seat, one end of the water channel through hole is connected to the water inlet of the inner sealing ring, and the other end is connected to an external water source.
[0008] Furthermore, an inner groove for installing an inner sealing ring is provided on the outer peripheral surface of the inner card seat, and the bottom of the inner groove is connected to the water channel through hole.
[0009] Furthermore, the outer sealing part includes an outer clamping seat installed on the base and an outer pressure seat installed on the outer clamping seat, an outer sealing ring is arranged between the outer clamping seat and the outer pressure seat, and the outer sealing ring is displaced to tighten the outer wall of the steel pipe end when water is injected.
[0010] Furthermore, the outer card seat and the inner card seat are respectively sealed and installed with the base, the outer card seat and the inner card seat are sealed and installed, the outer pressure seat and the outer card seat are sealed and installed, and an external vertical hole is arranged inside the external pressure seat, one end of the external vertical hole is connected to the external water source, and the other end is connected to the water inlet of the outer sealing ring.
[0011] Furthermore, the outer pressure seat is provided with an outer groove for mounting the outer sealing ring, and the bottom of the outer groove is communicated with the outer vertical hole.
[0012] Furthermore, the water channel through hole of the inner card seat includes a vertical hole a and a horizontal hole, and a penetrating vertical hole b is also provided on the outer card seat. One end of the horizontal hole is connected to the bottom of the inner card slot on the inner card seat, and the other end is connected to the vertical end face of the inner card seat. At the same time, the horizontal hole is connected to the bottom end of the vertical hole a, and the top of the vertical hole a penetrates the inner card seat and is connected to the vertical hole b.
[0013] Furthermore, an inner sealing ring platform is provided on the outer periphery of the inner clamping seat, a first sealing ring is mounted on the inner sealing ring platform, the outer clamping seat is provided with an inner sealing ring surface which is sealed with the first sealing ring, an outer sealing ring platform is provided on the outer periphery of the outer clamping seat, a second sealing ring is installed on the sealing ring platform, and the outer pressure seat is provided with an outer sealing ring surface which is sealed with the second sealing ring.
[0014] Furthermore, an avoidance ring is provided on the outer periphery of the inner clamping seat, a first avoidance hole is provided in the inner cavity of the outer clamping seat, and a second avoidance hole is provided in the inner cavity of the outer pressure seat. The first avoidance hole and the second avoidance hole are both through holes. The avoidance ring, inner sealing ring, inner pressure cover of the inner clamping seat and the first avoidance hole of the outer clamping seat, outer sealing ring and second avoidance hole of the outer pressure seat together form an annular gap for inserting the end of the steel pipe.
[0015] Furthermore, a water injection hole is arranged at the center of the base, and a center hole is arranged at the inner seat, the center hole is connected with the water injection hole of the base, and a plugging head is installed at the end surface of the inner seat through the horizontal hole of the inner seat.
[0016] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:
[0017] (1) The utility model provides an inner sealing part and an outer sealing part to compress and seal the inner wall and outer wall of the end of the steel pipe respectively, thereby achieving a sealing operation on the end of the steel pipe, facilitating the injection of high-pressure water into the inner cavity of the steel pipe to perform a sealing test on the steel pipe and ensure the effect of the sealing test on the steel pipe;
[0018] (2) The utility model fixes the inner sealing ring by setting the inner sealing part as an inner seat and an inner pressure cover, and tightens the inner sealing ring to press and seal the inner wall of the steel pipe by water injection, which is convenient for installation and maintenance, saving time and effort; and the water channel through hole is set to realize the water injection operation of the inner sealing ring;
[0019] (3) The utility model fixes the outer sealing ring by setting the outer sealing part as an outer clamping seat and an outer pressure cover, and tightens the outer sealing ring to seal the outer wall of the steel pipe by water injection;
[0020] (4) The utility model positions the inner sealing ring and the outer sealing ring respectively by providing an inner card slot and an outer card slot, and at the same time connects the inner sealing ring and the outer sealing ring to an external water source through a water channel to realize the water injection operation of the inner sealing ring and the outer sealing ring;
[0021] (5). The utility model provides an outer clamping seat and an inner clamping seat which are respectively sealed with the base. At the same time, the outer clamping seat and the inner clamping seat are sealed, and the outer clamping seat and the outer pressure seat are sealed, so as to ensure the sealing of the connection between the entire sealing device and the steel pipe, avoid water leakage, and improve the steel pipe sealing detection effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the three-dimensional explosion structure of the utility model;
[0023] Figure 2 It is a schematic diagram of the cross-section result of the utility model;
[0024] Figure 3 It is a cross-sectional schematic diagram of the explosion structure of the utility model;
[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the inner card seat of the utility model;
[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the external card holder of the utility model;
[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the external pressure seat of the utility model.
[0028] In the figure, 100 is a base; 101 is a water injection hole;
[0029] 200, inner card seat; 201, vertical hole a; 202, horizontal hole; 203, center hole; 204, inner card slot; 205, inner sealing ring platform; 206, avoidance ring platform;
[0030] 300, outer card seat; 301, vertical hole b; 302, outer sealing ring platform; 303, inner sealing ring surface; 304, first avoidance hole;
[0031] 400, external pressure seat; 401, external vertical hole; 402, external card slot; 403, external sealing ring surface; 404, second avoidance hole;
[0032] 500, outer sealing ring;
[0033] 600, inner sealing ring;
[0034] 700, inner gland. DETAILED DESCRIPTION
[0035] 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.
[0036] The drawings are for illustrative purposes only and should not be construed as limiting the present patent;
[0037] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0038] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.
[0039] In the description of this application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0040] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. The following is a further explanation of the present invention in conjunction with the accompanying drawings and embodiments.
[0041] In order to solve the limitations of the prior art, this embodiment provides a technical solution, and the technical solution of the utility model is further described below in conjunction with the drawings and embodiments.
[0042] The technical solution of the utility model is to seal the ends of the steel pipe at both ends during the sealing test, and then inject high-pressure water into the steel pipe to test the sealing of the inner cavity of the steel pipe. At the same time, when a composite layer needs to be added to the inner wall of the steel pipe, the technical solution of the utility model can also be used to use high-pressure water to press the internal composite layer and the outer wall of the steel pipe into shape.
[0043] Participate in the Figure 1-3A steel pipe water pressure processing pipe end sealing device includes an inner sealing part and an outer sealing part that are relatively fixed and concentrically installed. The relatively fixed installation here can be understood as the inner sealing part and the outer sealing part are respectively installed on the vertical surface of the base 100, and the outer sealing part is arranged on the outer ring of the inner sealing part. A gap is provided between the inner sealing part and the outer sealing part for the steel pipe end to be inserted. The inner sealing part and the outer sealing part can synchronously press or loosen the steel pipe end inserted into the gap. When the inner sealing part and the outer sealing part synchronously press the steel pipe, the steel pipe end is sealed. The inner sealing part includes an inner card seat 200 installed on the base 100 and an inner pressure cover 700 installed on the inner card seat 200, and the outer sealing part includes an outer card seat 300 installed on the base 100 and an outer pressure seat 400 installed on the outer card seat 300. The outer card seat 300 and the inner card seat 200 are respectively sealed and installed with the base 100, an O-ring is installed between the outer card seat 300 and the base 100, and an O-ring is also installed between the inner card seat 200 and the base 100. The card seat 300 and the inner card seat 200 are sealed and installed, and the outer pressure seat 400 and the outer card seat 300 are sealed and installed. The sealing installation here is sealed by a first sealing ring and a second sealing ring. In addition, a water injection hole 101 is set at the center of the base 100, and a center hole 203 is set in the inner card seat 200. Here, the water injection hole 101 and the center hole 203 are both through holes. The center hole 203 is connected with the water injection hole 101 of the base 100. When working, the water injection hole 101 is connected with an external water source. Specifically, an inner sealing ring 600 is arranged between the inner clamping seat 200 and the inner pressure cover 700. When the inner sealing ring 600 is injected with water, it is displaced to tighten the inner wall of the end of the steel pipe. A water channel hole is arranged inside the inner clamping seat 200. The water channel hole is realized by drilling. One end of the water channel hole is connected to the water inlet of the inner sealing ring 600, and the other end is connected to the external water source. An inner groove 204 for installing the inner sealing ring 600 is arranged on the outer peripheral surface of the inner clamping seat 200. The bottom of the inner groove 204 is connected to the water channel hole. The inner groove 204 is arranged to be an annular groove with a concave cross-section. The inner pressure cover 700 is installed on the outer wall of the annular groove and the diameter of the inner pressure cover 700 is larger than the diameter of the outer wall of the annular groove, so as to tighten the inner sealing ring 600. Specifically, an outer sealing ring 500 is arranged between the outer clamping seat 300 and the outer pressure seat 400. When the outer sealing ring 500 is injected with water, it is displaced to tighten the outer wall of the steel pipe end. An outer vertical hole 401 is arranged inside the outer pressure seat 400. The outer vertical hole 401 is realized by drilling. One end of the outer vertical hole 401 is connected with an external water source, and the other end is connected with the water inlet of the outer sealing ring 500. The outer pressure seat 400 is provided with an outer clamping groove 402 for installing the outer sealing ring 500. The bottom of the outer clamping groove 402 is connected with the outer vertical hole 401. The outer sealing ring 500 and the inner sealing ring 600 both adopt radial large gap sealing rings. The application scenario of this kind of radial large gap sealing ring is to inject high-pressure water to achieve a tightening and sealing effect. The radial large gap sealing ring is a saleable product on the market.
[0044] Participate in the Figure 4 The water channel through holes of the inner card seat 200 include a vertical hole a201 and a horizontal hole 202. A penetrating vertical hole b301 is also arranged on the outer card seat 300. One end of the horizontal hole 202 is connected to the bottom of the inner card slot 204 on the inner card seat 200, and the other end is connected to the vertical end face of the inner card seat 200. At the same time, the horizontal hole 202 is connected to the bottom end of the vertical hole a201, and the top of the vertical hole a201 penetrates the inner card seat 200 and is connected to the vertical hole b301. The horizontal hole 202 of the inner card seat 200 penetrates the end face of the inner card seat 200 and a plugging head is installed. The purpose of setting the plugging head here is to facilitate the processing of the horizontal hole 202. The horizontal hole 202, the vertical hole a201 and the vertical hole b301 together constitute the water injection channel of the inner sealing ring 600.
[0045] Participate in the Figure 4-6 An inner sealing ring platform 205 is also arranged on the outer periphery of the inner card seat 200, on which a first sealing ring is mounted, an inner sealing ring surface 303 which is sealed with the first sealing ring is arranged on the outer card seat 300, an outer sealing ring platform 302 is arranged on the outer periphery of the outer card seat 300, on which a second sealing ring is installed, an outer pressure seat 400 is arranged on which an outer sealing ring surface 403 which is sealed with the second sealing ring is arranged, the first sealing ring and the second sealing ring are both Y-shaped sealing rings, and the function of both is to realize the sealing installation between the inner card seat 200 and the outer card seat 300 as well as between the outer card seat 300 and the outer pressure cover. An avoidance ring 206 is also arranged on the outer periphery of the inner clamping seat 200, and the diameter of the avoidance ring 206 is smaller than the diameter of the inner sealing ring 205. A first avoidance hole 304 is arranged in the inner cavity of the outer clamping seat 300, and a second avoidance hole 404 is arranged in the inner cavity of the outer pressure seat 400. Both the first avoidance hole 304 and the second avoidance hole 404 are through holes. The end face between the avoidance ring 206 of the inner clamping seat 200 and the inner sealing ring 205, the avoidance ring 206 of the inner clamping seat 200, the inner sealing ring 600, the inner pressure cover 700 and the first avoidance hole 304 of the outer clamping seat 300, the outer sealing ring 500 and the second avoidance hole 404 of the outer pressure seat 400 jointly form an annular gap for inserting the end of the steel pipe.
[0046] When using the steel pipe water pressure processing pipe end sealing device disclosed in the present application to perform sealing detection operations, first insert the pipe end of the steel pipe into the annular gap between the inner sealing part and the outer sealing part, and inject high-pressure water into the inner sealing ring 600 and the outer sealing ring 500 to tighten the inner sealing ring 600 and the outer sealing ring 500 to compress the inner wall and outer wall of the end of the steel pipe. After both ends of the steel pipe are compressed and sealed, high-pressure water for detection is injected through the water injection hole 101 of the base 100. After the high-pressure water fills the inner cavity of the steel pipe, a water pressure test can be performed to achieve the sealing detection of the inner cavity of the steel pipe. If it is necessary to perform composite layer pressing on the inner wall of the steel pipe, the above operation can also be used.
[0047] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A steel pipe hydraulic processing pipe end sealing device, characterized in that: It includes an inner sealing part and an outer sealing part which are relatively fixed and concentrically installed, and a gap is provided between the inner sealing part and the outer sealing part for the end of the steel pipe to be inserted. The inner sealing part and the outer sealing part can synchronously press or loosen the end of the steel pipe inserted into the gap, and the inner sealing part and the outer sealing part can seal the end of the steel pipe when they synchronously press the steel pipe.
2. A steel pipe hydraulic processing pipe end sealing device according to claim 1, characterized in that: The inner sealing part comprises an inner clamping seat (200) mounted on a base (100) and an inner pressure cover (700) mounted on the inner clamping seat (200); an inner sealing ring (600) is arranged between the inner clamping seat (200) and the inner pressure cover (700); when water is injected, the inner sealing ring (600) is displaced to tighten the inner wall of the end of the steel pipe.
3. A steel pipe hydraulic processing pipe end sealing device according to claim 2, characterized in that: A water channel through hole is provided inside the inner card seat (200), one end of the water channel through hole is connected to the water inlet of the inner sealing ring (600), and the other end is connected to an external water source.
4. A steel pipe hydraulic processing pipe end sealing device according to claim 3, characterized in that: An inner card slot (204) for mounting an inner sealing ring (600) is provided on the outer peripheral surface of the inner card seat (200), and the bottom of the inner card slot (204) is connected to the water channel through hole.
5. A steel pipe hydraulic processing pipe end sealing device according to any one of claims 1 to 4, characterized in that: The outer sealing part comprises an outer clamping seat (300) mounted on the base (100) and an outer pressure seat (400) mounted on the outer clamping seat (300). An outer sealing ring (500) is arranged between the outer clamping seat (300) and the outer pressure seat (400). When water is injected, the outer sealing ring (500) is displaced to tighten the outer wall of the end of the steel pipe.
6. A steel pipe hydraulic processing pipe end sealing device according to claim 5, characterized in that: The outer card seat (300) and the inner card seat (200) are respectively installed in a sealed manner with the base (100), the outer card seat (300) and the inner card seat (200) are installed in a sealed manner, and the outer pressure seat (400) and the outer card seat (300) are installed in a sealed manner. An outer vertical hole (401) is arranged inside the outer pressure seat (400), one end of the outer vertical hole (401) is connected to an external water source, and the other end is connected to a water inlet of an outer sealing ring (500).
7. A steel pipe hydraulic processing pipe end sealing device according to claim 6, characterized in that: The external pressure seat (400) is provided with an external clamping groove (402) for mounting the external sealing ring (500), and the groove bottom of the external clamping groove (402) is communicated with the external vertical hole (401).
8. A steel pipe hydraulic processing pipe end sealing device according to claim 7, characterized in that: The water channel through hole of the inner card seat (200) includes a vertical hole a (201) and a horizontal hole (202). The outer card seat (300) is also provided with a penetrating vertical hole b (301). One end of the horizontal hole (202) is connected to the bottom of the inner card slot (204) on the inner card seat (200), and the other end is connected to the vertical end face of the inner card seat (200). At the same time, the horizontal hole (202) is connected to the vertical hole a (201). The top end of the vertical hole a (201) penetrates the inner card seat (200) and is connected with the vertical hole b (301).
9. A steel pipe hydraulic processing pipe end sealing device according to claim 8, characterized in that: An inner sealing ring platform (205) is also provided on the outer periphery of the inner clamping seat (200), on which a first sealing ring is mounted, and an inner sealing ring surface (303) that is sealingly matched with the first sealing ring is provided on the outer clamping seat (300), an outer sealing ring platform (302) is provided on the outer periphery of the outer clamping seat (300), on which a second sealing ring is mounted, and an outer sealing ring surface (403) that is sealingly matched with the second sealing ring is provided on the outer pressure seat (400).
10. A steel pipe hydraulic processing pipe end sealing device according to claim 9, characterized in that: An avoidance ring (206) is also provided on the outer periphery of the inner clamping seat (200), a first avoidance hole (304) is provided in the inner cavity of the outer clamping seat (300), and a second avoidance hole (404) is provided in the inner cavity of the outer pressure seat (400). The first avoidance hole (304) and the second avoidance hole (404) are both through holes. The avoidance ring (206) of the inner clamping seat (200), the inner sealing ring (600), the inner pressure cover (700) and the first avoidance hole (304) of the outer clamping seat (300), the outer sealing ring (500), and the second avoidance hole (404) of the outer pressure seat (400) together form an annular gap for inserting the end of the steel pipe.