阅读说明：本技术 一种高温蒸汽氧化实验管道三向限位装置及其安装方法 (High-temperature steam oxidation experiment pipeline three-way limiting device and installation method thereof ) 是由 董红年 周陈龙 闫爱军 范志东 马翼超 韦宣 李江 于 2021-09-18 设计创作，主要内容包括：本发明公开了一种高温蒸汽氧化实验管道三向限位装置及其安装方法,该装置抱箍,抱箍用于包裹住实验管道,抱箍的上部被弹簧支吊架限位竖直方向的移动,水平方向被梯形支撑块、滑动杆和滑动头限位。该装置既可对实验过程中的高温高压S形串联管道起到支撑作用,又可以实现三向限位的效果。既可以限制S型串联管道的膨胀位移量,又不至于过度限制进而引起局部应力过大或开裂。从而对管道的长时间实验或服役提供保障。(The invention discloses a three-way limiting device for a high-temperature steam oxidation experiment pipeline and an installation method thereof. The device not only can play a supporting role for the high-temperature high-pressure S-shaped series pipeline in the experimental process, but also can realize the effect of three-dimensional spacing. The expansion displacement of the S-shaped series pipeline can be limited, and the expansion displacement is not limited too much so as not to cause excessive local stress or cracking. Thereby providing guarantee for long-time experiment or service of the pipeline.)

1. A three-way limiting device for a high-temperature steam oxidation experiment pipeline is characterized by comprising a pair of oppositely arranged anchor ears (10), wherein the upper ends of the two anchor ears (10) are connected to a spring support hanger (1) together;

the outer end part of each hoop (10) is abutted by the inner end face of a trapezoidal supporting block (9), the inner end face of the trapezoidal supporting block (9) is an arc face, the outer end face of the trapezoidal supporting block (9) is connected with a sliding rod (7), a transverse spring (8) is sleeved on the sliding rod (7), and the length of the transverse spring (8) is greater than that of the sliding rod (7); the outer end face of the sliding rod (7) is connected with a sliding head (18), the outer end face of the sliding head (18) props against a stainless steel base plate (6), and the stainless steel base plate (6) is connected with a limiting frame (5);

staple bolt (10) are used for parcel experiment pipeline (11), staple bolt (10) and experiment pipeline (11) are interference fit.

2. The high-temperature steam oxidation experiment pipeline three-way limiting device as claimed in claim 1, wherein a semicircular protrusion (16) is arranged in the middle of each hoop (10), the semicircular protrusion (16) is abutted by the inner end face of the trapezoidal supporting block (9), and the upper end and the lower end of the semicircular protrusion (16) are respectively and integrally connected with a rectangular limiting piece (17).

3. The high-temperature steam oxidation experiment pipeline three-way limiting device as claimed in claim 1, wherein the diameter of the semicircular bulge (16) is not larger than that of the experiment pipeline (11).

4. The high-temperature steam oxidation experiment pipeline three-way limiting device as claimed in claim 2, wherein the two upper rectangular limiting pieces (17) are connected with the spring support and hanger (1) through bolt structures.

5. The high-temperature steam oxidation experiment pipeline three-way limiting device as claimed in claim 1, wherein the spring support and hanger (1) comprises a hanging ring (12), a vertical spring (13) and a connecting rod (14) which are sequentially connected from top to bottom, a sleeve (15) is sleeved outside the vertical spring (13), and the lower end of the connecting rod (14) is connected with the hoop (10).

6. The high-temperature steam oxidation experiment pipeline three-way limiting device as claimed in claim 1, wherein the area of the outer end surface of the trapezoid supporting block (9) is smaller than that of the inner end surface.

7. The high-temperature steam oxidation experiment pipeline three-way limiting device as claimed in claim 1, wherein the trapezoidal supporting block (9) is of a hollow structure.

8. The high-temperature steam oxidation experiment pipeline three-way limiting device as claimed in claim 1, wherein the outer end face of the sliding head (18) is a curved surface.

9. The high-temperature steam oxidation experiment pipeline three-way limiting device as claimed in claim 7, wherein the outer end face of the sliding head (18) is a spherical crown face.

10. The installation method of the high-temperature steam oxidation experiment pipeline three-way limiting device as claimed in claim 1, is characterized by comprising the following steps:

step 1, installing a spring support and hanger (1);

step 2, wrapping the anchor ear (10) on an experimental pipeline (11), connecting the anchor ear (10) and the spring support hanger (1) through bolts, wherein the anchor ear (10) on each side is abutted by a trapezoidal supporting block (9), the outer end face of the trapezoidal supporting block (9) is connected with a sliding rod (7), and the sliding rod (7) is abutted by a sliding head (18);

and 3, compressing the transverse spring (8), and fixing the stainless steel base plate (6) and the limiting frame (5).

Technical Field

The invention belongs to the field of support and hanger and pipeline fixing, and particularly relates to a three-way limiting device for a high-temperature steam oxidation experiment pipeline and an installation method thereof.

Background

In the operation process of a thermal power plant unit, the S-shaped high-temperature high-pressure steam oxidation online experiment pipeline made of various different materials is connected in series, and the problem of pipeline expansion displacement is easily caused due to the high-temperature effect in the experiment process. If effective limiting measures cannot be taken for the experimental pipeline, local stress of the experimental pipeline is easily overlarge, and then local stress concentration or cracking is caused. Resulting in termination or failure of the experiment. Although related supporting and hanging bracket devices exist, most of the devices only have the function of limiting up and down, and cannot effectively restrict expansion in the front, back, left and right directions and achieve the effect of three-direction omnibearing restriction.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a three-way limiting device for a high-temperature steam oxidation experiment pipeline and an installation method thereof, so as to solve the problem that the three-way limiting constraint cannot be effectively carried out on the high-temperature experiment pipeline in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:

a three-way limiting device for a high-temperature steam oxidation experiment pipeline comprises a pair of oppositely arranged hoops, wherein the upper ends of the two hoops are connected to a spring support hanger together;

the outer end part of each hoop is abutted by the inner end face of a trapezoidal supporting block, the inner end face of the trapezoidal supporting block is an arc face, the outer end face of the trapezoidal supporting block is connected with a sliding rod, a transverse spring is sleeved on the sliding rod, and the length of the transverse spring is greater than that of the sliding rod; the outer end face of the sliding rod is connected with a sliding head, the outer end face of the sliding head abuts against a stainless steel base plate, and the stainless steel base plate is connected with a limiting frame;

the staple bolt is used for wrapping up the experiment pipeline, staple bolt and experiment pipeline are interference fit.

The invention is further improved in that:

preferably, the middle of each hoop is provided with a semicircular bulge, the semicircular bulge is abutted by the inner end face of the trapezoidal supporting block, and the upper end and the lower end of the semicircular bulge are respectively and integrally connected with a rectangular limiting piece.

Preferably, the diameter of the semicircular projection is not larger than that of the experimental pipe.

Preferably, the two upper rectangular limiting pieces are connected with the spring support and hanger through a bolt structure.

Preferably, the spring support and hanger comprises a hanging ring, a vertical spring and a connecting rod which are sequentially connected from top to bottom, a sleeve is sleeved outside the vertical spring, and the lower end of the connecting rod is connected with the hoop.

Preferably, the area of the outer end surface of the trapezoidal support block is smaller than that of the inner end surface.

Preferably, the trapezoidal supporting block is of a hollow structure.

Preferably, the outer end surface of the sliding head is a curved surface.

Preferably, the outer end face of the sliding head is a spherical crown face.

The mounting method of the three-way limiting device for the high-temperature steam oxidation experiment pipeline comprises the following steps:

step 1, installing a spring support and hanger;

step 2, wrapping the anchor ear on the experimental pipeline, connecting the anchor ear and the spring support hanger through bolts, wherein the anchor ear on each side is abutted by the trapezoidal supporting block, the outer end face of the trapezoidal supporting block is connected with a sliding rod, and the sliding rod and a sliding head are abutted;

and 3, compressing the transverse spring, and fixing the stainless steel backing plate and the limiting frame.

Compared with the prior art, the invention has the following beneficial effects:

the invention discloses a three-way limiting device for a high-temperature steam oxidation experiment pipeline, which comprises a pair of hoops, wherein the hoops are used for wrapping the experiment pipeline, the upper parts of the hoops are limited by spring support hangers to move in the vertical direction, and the upper parts of the hoops are limited by trapezoidal supporting blocks, sliding rods and sliding heads in the horizontal direction. The device not only can play a supporting role for the high-temperature high-pressure S-shaped series pipeline in the experimental process, but also can realize the effect of three-dimensional spacing. The expansion displacement of the S-shaped series pipeline can be limited, and the expansion displacement is not limited too much so as not to cause excessive local stress or cracking. Thereby providing guarantee for long-time experiment or service of the pipeline.

Further, the middle of staple bolt is provided with semi-circular arch for experimental pipeline is lived in the parcel that can be better.

Furthermore, the diameter of the semicircular bulge is smaller than or equal to that of the experiment pipeline, and then the semicircular bulge can be in interference fit with the experiment pipeline.

Furthermore, the rectangular limiting piece is used for connecting the hoop and the spring support and hanger.

Furthermore, the spring in the spring support hanger can be used as a support to fully absorb the up-and-down expansion amount.

Furthermore, the area of the outer end face of the trapezoidal supporting block is smaller than that of the inner end face, the sliding rod can provide enough supporting force for the hoop, and the hoop can be stressed more uniformly through the arc face with larger area.

Furthermore, the trapezoidal supporting block is of a hollow structure, so that the weight of the whole supporting device is reduced.

Further, the slider is curved, more preferably spherical, and is retractable back and forth and cooperates with the spring to absorb the amount of expansion back and forth.

The invention also discloses an installation method of the three-way limiting device for the high-temperature steam oxidation experiment pipeline. Thereby providing guarantee for long-time experiment or service of the pipeline.

Drawings

FIG. 1 is a front view of the device structure of the present invention;

FIG. 2 is a detail view of the clamping portion of the device structure of the present invention;

FIG. 3 is a detail view of the spring portion of the present invention;

wherein: the method comprises the following steps of 1-spring supporting and hanging frame, 2-U-shaped joint, 3-screw rod, 4-nut, 5-limiting frame, 6-stainless steel backing plate, 7-sliding rod, 8-transverse spring, 9-trapezoidal supporting block, 10-hoop and 11-experimental pipeline. 12-a hoisting ring; 13-vertical spring, 14-connecting rod; 15-a sleeve; 16-semicircular bulges; 17-rectangular limiting piece; 18-sliding head.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and encompass, for example, both fixed and removable connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention discloses a high-temperature steam oxidation experiment pipeline three-direction limiting device and an installation method thereof. The vertical direction limiting module comprises a spring support and hanger 1, a U-shaped joint 2, a screw rod 3 and a nut 4; the radial limiting device comprises a limiting frame 5, a stainless steel base plate 6, a sliding rod 7, a transverse spring 8 and a trapezoidal support 9; the axial limiting module comprises a hoop 10.

Referring to fig. 1, 2 and 3, the spring support and hanger 1 sequentially comprises a hanging ring 12, a vertical spring 13, a connecting rod 14, a sleeve 15 and a U-shaped joint 2 from top to bottom, the lower end of the hanging ring 12 is connected with the vertical spring 13 through a connecting piece, the vertical spring 13 is vertically placed, the lower end of the vertical spring 13 is connected with the connecting rod 14, the outer end of the vertical spring 13 is sleeved inside the sleeve 15, the upper end of the sleeve 15 is connected with the connecting piece, the lower end of a hanging rod 12 is connected with the U-shaped joint 2, the bottom (closed end) of the U-shaped joint 2 is integrally connected with the lower end of the hanging rod 12, and the open end of the U-shaped joint 2 is connected with two hoops 10.

The two hoops 10 are oppositely arranged, a semicircular bulge 16 is arranged in the middle of each hoop 10, and the upper part and the lower part of each semicircular bulge 16 are respectively provided with a rectangular limiting sheet 17 which are integrally connected; the two hoops 10 are consistent in structure and are arranged oppositely, the diameter of each semicircular bulge 16 is not larger than the outer diameter of the test pipeline 11, the two semicircular bulges 16 relatively form a hollow cylindrical pipeline, and the inner diameter of the formed cylindrical pipeline is the outer diameter of the test pipeline 11. More preferably, hollow cylinder pipeline and experiment pipeline 11 are interference fit, guarantee to give the sufficient power of centre gripping of experiment pipeline 11, guarantee that experiment pipeline 11 can not take place to remove in radial and axial direction.

Radial limiting devices are arranged on two sides of the hoop 10. The end part close to the experimental pipeline 11 is set as an inner end part, and the opposite direction is set as an outer end part, which is not described again in the following by taking the inner end part as a reference.

Specifically, the outside of each semicircular projection 16 is supported by the inner end part of one trapezoidal support block 9, the inner end face of each trapezoidal support block 9 is arc-shaped, the radian is the same as the radian of the outer arc face of each semicircular projection 16, and the rest faces are planes, as one of the preferable schemes, the trapezoidal support block 9 is provided with a through hole along the axis direction of the experiment pipeline 11, so that the whole trapezoidal support block 9 is a hollow trapezoidal support block, the weight of the whole support device is reduced, the outer end face of the trapezoidal support block 9 is connected with the inner end part of the sliding rod 7, the outer end face of the trapezoidal support block 9 is a small end face of a trapezoidal structure, the inner arc face is a large end face, the sliding rod 7 is ensured to give enough supporting force to the hoop 10, and the hoop 10 can be stressed more uniformly through the arc face with a larger area. The cover is equipped with horizontal spring 8 on the slide bar 7, the length of slide bar 7 is less than the length of horizontal spring 8, outer tip body coupling of slide bar 7 has slider 18, the interior terminal surface of slider 18 is the circular plane, the outer terminal surface is the spherical crown face of coaxial line, the outer edge and the circular plane body coupling of spherical crown face, make the two constitute a slider 18, slider 18 and slide bar 7 coaxial line, the interior terminal surface and the slide bar 7 body coupling of slider 18, the tip of spherical crown face supports the inside wall of stainless steel backing plate 6, the fixed setting of lateral wall of stainless steel backing plate 6 is on spacing 5, the length of spacing 5 is set for according to the demand, make whole device can support on ground or other devices. 4. The limiting frame 5 is used as a support of the stainless steel backing plate 6 and is welded with the stainless steel backing plate to ensure that the pipe system moves in a certain position.

The two trapezoid supporting blocks 9, the two sliding rods 7, the two transverse springs 8, the two sliding heads 18, the two stainless steel base plates 6 and the two limiting frames 5 are arranged symmetrically relative to a vertical plane where the axis of the experimental pipeline 11 is located.

The device not only can play a supporting role for the high-temperature high-pressure S-shaped series pipeline in the experimental process, but also can realize the effect of three-dimensional spacing. The expansion displacement of the S-shaped series pipeline can be limited, and the expansion displacement is not limited too much so as not to cause excessive local stress or cracking. Thereby providing guarantee for long-time experiment or service of the pipeline.

The device of the invention is required to be installed and used on the premise of ensuring safety, and the specific installation method comprises the following steps:

step 1, selecting a proper position as a rooting point, and installing a spring support and hanger 1;

step 2, assembling the radial limiting module (the trapezoidal supporting block, the spring and the sliding rod) and the axial limiting module (the hoop) with the pipeline;

specifically, two hoops 10 are oppositely arranged, the experimental pipeline 11 is wrapped on two sides of the experimental pipeline 11, the screw 3 penetrates through the U-shaped connector 2 and the upper parts of the two hoops 10 and is in limited connection through the nut 4, and the experimental pipeline 11 is wrapped by the hoops 10 at the moment; the anchor ear 10 on each side is propped against by the trapezoidal supporting block 9, the sliding rod 7 and the sliding head 18 from inside to outside in sequence, and the horizontal direction is limited;

(4) the installation of the device can be completed by compressing the transverse spring 8, fixing the position of the horizontal limiting module (stainless steel backing plate and support frame) on the premise that the transverse spring 8 on the sliding rod 7 bears a certain pretightening force, supporting the stainless steel backing plate 6 against the sliding head 18, and further fixing the position of the limiting frame 5 connected with the stainless steel backing plate 6.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.