High-temperature and high-pressure welded steel pipe

Abstract

The utility model relates to the technical field of welded steel pipes, and discloses a high-temperature and high-pressure welded steel pipe which comprises a steel pipe body, a filtering assembly is fixedly installed in the steel pipe body, the top of the filtering assembly is connected with an adjusting assembly, and the upper end of the adjusting assembly extends to the position above the steel pipe body. The filtering assembly comprises a left filtering plate and a right filtering plate which are mutually buckled in a sealed mode, a packaging cavity is formed between the two filtering plates, a plurality of through holes which are evenly distributed are formed in the two filtering plates, one ends of the through holes communicate with the steel pipe body, and the other ends of the through holes communicate with the packaging cavity. Due to the arrangement of the adjusting assembly, the air pressure in the packaging cavity can be conveniently adjusted, namely, the adjustable filter pipes can be expanded and contracted under the matching of external air pressure, so that the size of the inner drift diameter of the adjustable filter pipes is changed, and the effect of filtering impurities with different sizes and volumes is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding steel pipe technical field more specifically, the utility model relates to a kind of high-temperature high-pressure welded steel pipe. BACKGROUND

[0002] Steel pipe has hollow section, and its length is much greater than diameter. According to sectional shape, it is divided into round, square, rectangular and special-shaped steel pipe;Steel pipe has a variety of materials, and it is divided into carbon structural steel pipe, low alloy structural steel pipe, alloy steel pipe and composite steel pipe;According to production process, it is divided into seamless steel pipe and welded steel pipe, wherein seamless steel pipe is divided into hot rolling and cold rolling two, and welded steel pipe is divided into straight seam welded steel pipe and spiral seam welded steel pipe.

[0003] The existing welded steel pipe can meet the needs of daily work and life production, but still has some deficiencies, such as the existing welded steel pipe lacks a good physical filtering mechanism, cannot adjust the filtering flow according to different dredging media, the filtering effect is poor, and thus the anti-clogging effect is poor, so a new welded steel pipe needs to be developed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a high-temperature high-pressure welded steel pipe.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a high-temperature high-pressure welded steel pipe, comprising a steel pipe body, a filtering assembly is fixedly installed inside the steel pipe body, an adjusting assembly is connected to the top of the filtering assembly, and the upper end of the adjusting assembly extends above the steel pipe body.

[0006] The filtering assembly comprises two filtering plates sealed and buckled with each other, an encapsulation cavity is formed between the two filtering plates, a plurality of through holes are uniformly distributed inside the two filtering plates, one end of the through hole is communicated with the steel pipe body, the other end of the through hole is communicated with the encapsulation cavity, and a plurality of adjustable filter tubes are fixedly connected between the two filtering plates.

[0007] As a preferred technical scheme of the utility model, the inner diameter size of the adjustable filter tube is the same as the inner diameter size of the encapsulation cavity, and a gap is left between adjacent adjustable filter tubes.

[0008] As a preferred technical scheme of the utility model, the two ends of the inner cavity of the adjustable filter tube are smoothly connected with the inner wall of the encapsulation cavity, and the inner walls of the encapsulation cavity and the adjustable filter tube are smooth.

[0009] As a preferred technical scheme of the utility model, the adjusting assembly comprises an adjusting column arranged above the steel pipe body, and a communicating pipe is fixedly connected to the bottom of the adjusting column, the lower end of the communicating pipe is inserted into the inside of the steel pipe body and communicates with the packaging cavity between the two filter plates.

[0010] As a preferred technical scheme of the utility model, the adjusting column is internally provided with an adjusting cavity, the bottom of the adjusting cavity communicates with the packaging cavity through the communicating pipe, and an adjusting piston plate is sealingly sleeved in the inside of the adjusting cavity.

[0011] As a preferred technical scheme of the utility model, the top of the adjusting piston plate is provided with an adjusting screw rod, the bottom of the adjusting screw rod is fixedly connected with a rotating clasp ring, the rotating clasp ring is movably sleeved in the inside of the adjusting piston plate, the upper end of the adjusting screw rod penetrates the adjusting cavity and extends above the adjusting column and is fixedly connected with an adjusting knob.

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] 1. The utility model discloses a adjusting assembly can be conveniently adjusted to the air pressure in the packaging cavity, that is, under the cooperation of the external air pressure, the adjustable filter pipe can be expanded or contracted, thereby the inside diameter size is changed, so that the effect of filtering different size impurities is achieved.

[0014] 2. The utility model discloses an adjustable filter pipe, when the inside diameter size is changed by changing the air pressure, the dust or impurities attached to the surface can be conveniently removed, and by quickly changing the inside diameter size, the effect of dredging the blockage can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a side view of the utility model;

[0017] Figure 3 It is a sectional view of the front of the utility model;

[0018] Figure 4 It is Figure 3 It is a local schematic view of the adjustable filter pipe;

[0019] Figure 5 It is a sectional view of the filter assembly and the adjusting assembly of the utility model;

[0020] Figure 6 It is Figure 5 It is a local schematic view of the adjusting cavity.

[0021] In the figure: 1, steel pipe body; 2, filter assembly; 21, filter plate; 22, encapsulation cavity; 23, through hole; 24, adjustable filter tube; 3, adjusting assembly; 31, adjusting column; 32, adjusting cavity; 33, communication pipe; 34, adjusting piston plate; 35, adjusting screw; 36, rotating clasp; 37, adjusting knob. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] As Figures 1 to 5 shown, the utility model provides a kind of high temperature high pressure welded steel pipe, including steel pipe body 1, the inside fixed installation of steel pipe body 1 is equipped with filter assembly 2, filter assembly 2 top is connected with adjusting assembly 3, and the upper end of adjusting assembly 3 extends to the above of steel pipe body 1;

[0024] Filter assembly 2 includes left and right two mutually sealed buckling filter plates 21, and the encapsulation cavity 22 is opened between the two filter plates 21, and the several through holes 23 that are evenly distributed are opened in the inside of two filter plates 21, one end of through hole 23 is communicated with steel pipe body 1, the other end of through hole 23 is communicated with encapsulation cavity 22, and the several adjustable filter tubes 24 are fixedly connected between the two filter plates 21, and the two ends of adjustable filter tube 24 are communicated with the encapsulation cavity 22 in the two filter plates 21 respectively;Because of the setting of adjusting assembly 3, the air pressure in encapsulation cavity 22 can be conveniently adjusted, i.e. adjustable filter tube 24 can be expanded and contracted under the cooperation of external air pressure, to change the inside diameter size, so that the effect of filtering different size impurities is achieved.

[0025] Among them, the inner diameter size of adjustable filter tube 24 is same with the inner diameter size of encapsulation cavity 22, and gap is left between adjacent adjustable filter tubes 24;Because adjacent adjustable filter tubes 24 do not contact each other, when the air pressure in encapsulation cavity 22 changes, it can simultaneously act on several adjustable filter tubes 24, so that several adjustable filter tubes 24 are expanded and contracted simultaneously, to ensure that the flow rate of several encapsulation cavities 22 through adjustable filter tube 24 remains consistent.

[0026] Among them, the two ends of adjustable filter tube 24 inner cavity are smoothly connected with the inner wall of encapsulation cavity 22, and the inner wall of encapsulation cavity 22 and adjustable filter tube 24 is smooth;Because of the setting of adjustable filter tube 24, when changing the size of its diameter by changing air pressure, it can help to facilitate the removal of dust or impurities attached to its surface, and by quickly changing its diameter size, the effect of unblocking blockage can be achieved.

[0027] The adjusting assembly 3 comprises an adjusting column 31 arranged above the steel pipe body 1, and the bottom of the adjusting column 31 is fixedly connected with a communicating pipe 33, the lower end of the communicating pipe 33 is inserted into the inside of the steel pipe body 1 and communicates with the packaging cavity 22 between the two filter plates 21.

[0028] The inside of the adjusting column 31 is provided with an adjusting cavity 32, the bottom of the adjusting cavity 32 communicates with the packaging cavity 22 through the communicating pipe 33, and the inside of the adjusting cavity 32 is sealingly sleeved with an adjusting piston plate 34.

[0029] The top of the adjusting piston plate 34 is provided with an adjusting screw rod 35, the bottom of the adjusting screw rod 35 is fixedly connected with a rotating clasp 36, the rotating clasp 36 is movably sleeved in the inside of the adjusting piston plate 34, the upper end of the adjusting screw rod 35 penetrates through the adjusting cavity 32 and extends above the adjusting column 31 and is fixedly connected with an adjusting knob 37; due to the arrangement of the rotating clasp 36, the adjusting screw rod 35 can drive the adjusting piston plate 34 to move up and down along the inside of the adjusting cavity 32, and the adjusting piston plate 34 is prevented from rotating with the adjusting screw rod 35, so that the outer surface of the adjusting piston plate 34 and the inner wall of the adjusting cavity 32 are prevented from being abraded.

[0030] The working principle and use process of the utility model are as follows:

[0031] The filter assembly 2 and the adjusting assembly 3 are integrally installed in the inside of the steel pipe body 1, the adjusting knob 37 is rotated to drive the adjusting screw rod 35 to rotate, the adjusting screw rod 35 is slowly moved up and down under the cooperation of the adjusting column 31, the adjusting piston plate 34 is driven to slowly move up and down along the inside of the adjusting cavity 32 under the cooperation of the rotating clasp 36, the air in the adjusting cavity 32 is pressed to enter the packaging cavity 22 through the communicating pipe 33 due to the movement of the adjusting piston plate 34, the air in the packaging cavity 22 is simultaneously sucked into the adjusting cavity 32, the air pressure in the packaging cavity 22 is changed, the adjustable filter pipe 24 is pressed to reduce the middle diameter when the air pressure in the packaging cavity 22 increases, so that the impurities with small volume are filtered in front of the steel pipe body 1; when the air pressure in the packaging cavity 22 decreases, the inside diameter of the adjustable filter pipe 24 is increased under the deformation recovery of the adjustable filter pipe 24, so that the impurities with large volume are filtered in front of the steel pipe body 1.

[0032] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0033] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature high-pressure welded steel pipe comprising a steel pipe body (1), characterized by: The inside of the steel pipe body (1) is fixedly installed with a filtering assembly (2), the top of the filtering assembly (2) is connected with an adjusting assembly (3), the upper end of the adjusting assembly (3) extends above the steel pipe body (1); The filtering assembly (2) comprises two filtering plates (21) sealed and buckled with each other, an encapsulation cavity (22) is arranged between the two filtering plates (21), a plurality of through holes (23) are evenly arranged in the inside of the two filtering plates (21), one end of the through hole (23) is communicated with the steel pipe body (1), the other end of the through hole (23) is communicated with the encapsulation cavity (22), a plurality of adjustable filter tubes (24) are fixedly connected between the two filtering plates (21), and two ends of the adjustable filter tube (24) are communicated with the encapsulation cavities (22) in the two filtering plates (21) respectively.

2. The high-temperature high-pressure welded steel pipe according to claim 1, characterized by: The inner diameter size of the adjustable filter tube (24) is same with the inner diameter size of the encapsulation cavity (22), and a gap is left between adjacent adjustable filter tubes (24).

3. The high-temperature high-pressure welded steel pipe according to claim 1, characterized by: Both ends of the inner cavity of the adjustable filter tube (24) are smoothly connected with the inner wall of the encapsulation cavity (22), and the inner walls of the encapsulation cavity (22) and the adjustable filter tube (24) are smooth.

4. The high-temperature high-pressure welded steel pipe according to claim 1, characterized by: The adjusting assembly (3) comprises an adjusting column (31) arranged above the steel pipe body (1), the bottom of the adjusting column (31) is fixedly connected with a communication pipe (33), the lower end of the communication pipe (33) is inserted into the inside of the steel pipe body (1) and communicated with the encapsulation cavities (22) between the two filtering plates (21).

5. A high-temperature high-pressure welded steel pipe according to claim 4, characterized in that: An adjusting cavity (32) is arranged in the inside of the adjusting column (31), the bottom of the adjusting cavity (32) is communicated with the encapsulation cavities (22) through the communication pipe (33), and an adjusting piston plate (34) is sealingly sleeved in the inside of the adjusting cavity (32).

6. A high-temperature high-pressure welded steel pipe according to claim 5, characterized by: An adjusting screw rod (35) is arranged at the top of the adjusting piston plate (34), the bottom of the adjusting screw rod (35) is fixedly connected with a rotating clasp (36), the rotating clasp (36) is movably sleeved in the inside of the adjusting piston plate (34), the upper end of the adjusting screw rod (35) penetrates through the adjusting cavity (32) and extends above the adjusting column (31) and is fixedly connected with an adjusting knob (37).

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