阅读说明：本技术 一种用于不锈钢管的无损内壁检测装置 (Nondestructive inner wall detection device for stainless steel pipe ) 是由 李飞芳 于 2021-09-23 设计创作，主要内容包括：本发明公开了一种用于不锈钢管的无损内壁检测装置,属于不锈钢管领域,一种用于不锈钢管的无损内壁检测装置,包括不锈钢管主体,不锈钢管主体的两端均连接有检测装置,检测装置包括支撑环,支撑环的两端均转动连接有与不锈钢管主体相匹配的转盘,转盘与不锈钢管主体法兰连接,一对支撑环之间连接有检测线,检测线包括感应基线,感应基线的外侧固定连接有防水套,支撑环的内壁上固定连接有与检测线相匹配的接线装置,本方案通过管道内壁上铺设检测线来对管道的内壁各项参数进行多点检测,且检测线的安装在长度可控,易于适应不同长度的管道,且安装和工作过程不易对管道内壁造成损伤,保证管道的完整性。(The invention discloses a nondestructive inner wall detection device for a stainless steel pipe, which belongs to the field of stainless steel pipes and comprises a stainless steel pipe main body, wherein both ends of the stainless steel pipe main body are connected with detection devices, each detection device comprises a support ring, both ends of each support ring are rotatably connected with a turntable matched with the stainless steel pipe main body, the turntables are connected with the stainless steel pipe main body in a flange way, a detection line is connected between a pair of support rings, the detection line comprises a sensing base line, the outer side of the sensing base line is fixedly connected with a waterproof sleeve, the inner wall of each support ring is fixedly connected with a wiring device matched with the detection line, the scheme carries out multi-point detection on each parameter of the inner wall of a pipeline by laying the detection line on the inner wall of the pipeline, the installation length of the detection line is controllable, the detection line is easy to adapt to pipelines with different lengths, and the inner wall of the pipeline is not easy to be damaged in the installation and working processes, the integrity of the pipeline is ensured.)

1. The utility model provides a nondestructive inner wall detection device for nonrust steel pipe, includes nonrust steel pipe main part (1), its characterized in that: the detection device comprises a support ring (2), turntables (3) matched with the stainless steel pipe body (1) are rotatably connected to the two ends of the support ring (2), the turntables (3) are in flange connection with the stainless steel pipe body (1), a detection line (4) is connected between the support ring (2), the detection line (4) comprises a sensing base line (401), a plurality of sections of temperature-sensitive resistors and a plurality of piezoelectric diaphragms are mounted on the sensing base line (401), a waterproof sleeve (402) is fixedly connected to the outer side of the sensing base line (401), a pair of composite heat-insulating sheets (403) are connected between the sensing base line (401) and the waterproof sleeve (402), the waterproof sleeve (402) is attached to the inner wall of the stainless steel pipe body (1), and a wiring device (5) matched with the detection line (4) is fixedly connected to the inner wall of the support ring (2), the wiring device (5) comprises a shell (501), a guide wheel (502) is connected in the shell (501) in a rotating manner, a sealing clamp (6) is fixedly connected in the shell (501), the sealing clamp (6) comprises an electric push rod (601), a clamping plate (602) matched with a detection line (4) is fixedly connected on a power output end of the electric push rod (601), a plurality of sections of temperature-sensitive resistors on a sensing base line (401) are installed between two piezoelectric diaphragms, the temperature-sensitive resistors are located above the piezoelectric diaphragms, the sensing base line (401) comprises a pair of integrated line pipes, the integrated line pipes are distributed to penetrate through the temperature-sensitive resistors and the piezoelectric diaphragms, a plurality of wires are arranged in the integrated line pipes in a penetrating manner, each piezoelectric diaphragm and the temperature-sensitive resistors are respectively connected with one wire in series, and the composite heat-insulating sheet (403) comprises a heat-insulating film fixedly connected with the piezoelectric diaphragms, the lower end of the heat insulation film is fixedly connected with a support sheet matched with the temperature-sensitive resistor;

the nondestructive inner wall detection device for the stainless steel pipe is applied, and the installation and debugging method comprises the following steps:

s1, firstly, a detection line (4) is arranged in the stainless steel pipe body (1) in a penetrating mode, and the detection line (4) is attached to the bottom end of the inner wall of the stainless steel pipe body (1);

s2, clamping two ends of the detection line (4) into the wiring devices (5) on the two support rings (2) respectively, then starting the stepping motor, enabling the guide wheel to rotate and drawing the detection line (4) to move until one end of the detection line (4) leaves from the other end of the shell (501);

s3, connecting the detection line (4) into a processor, controlling the electric push rod (601) to move at the moment, enabling the clamping plate (602) to seal and fix the connection part of the detection line (4) and the shell (501), sending an electric signal to the processor by the piezoelectric membrane on the detection line (4) at the extrusion part at the moment, storing an activated state of a circuit corresponding to the piezoelectric membrane and the temperature-sensitive resistor between the two piezoelectric membranes sending signals by the processor after the processor receives the signals, and closing the rest circuits;

and S4, finally, connecting the input pipe and the output pipe of the fluid into a pair of support rings (2).

2. The nondestructive inner wall inspection apparatus for a stainless steel pipe according to claim 1, characterized in that: fixedly connected with and carousel (3) assorted sealing ring on the outer wall of support ring (2), be connected with waterproof bearing between carousel (3) and support ring (2).

3. The nondestructive inner wall inspection apparatus for a stainless steel pipe according to claim 1, characterized in that: the stainless steel pipe is characterized in that flange rings matched with the rotary disc (3) are fixedly connected to the two ends of the stainless steel pipe body (1), and the diameter of each flange ring is smaller than that of the rotary disc (3).

4. The nondestructive inner wall inspection apparatus for a stainless steel pipe according to claim 1, characterized in that: fixedly connected with and termination (5) assorted water conservancy diversion ring on the inner wall of support ring (2), set up on the water conservancy diversion ring with detection line (4) assorted bar groove, and bar groove communicates with each other with termination (5), the thickness and the detection line (4) thickness phase-match in bar groove.

5. The nondestructive inner wall inspection apparatus for a stainless steel pipe according to claim 1, characterized in that: the top joint of support ring (2) has servo motor, fixedly connected with driving gear on servo motor's the power take off, seted up on the outer wall of carousel (3) with driving gear assorted tooth's socket.

6. The nondestructive inner wall inspection apparatus for a stainless steel pipe according to claim 1, characterized in that: the control system comprises a controller installed in a wiring device (5), a stepping motor matched with a guide wheel (502) is installed in the wiring device (5), an electric push rod (601) and the stepping motor are both electrically connected with the controller, a processor matched with a detection line (4) is arranged on the outer side of a support ring (2), and the processor is in signal connection with the controller.

7. The nondestructive inner wall inspection apparatus for a stainless steel pipe according to claim 1, characterized in that: waterproof cover (402) are made by waterproof silica gel, and a plurality of evenly distributed's recess is seted up to the lower extreme of waterproof cover (402), 45 chamfers are seted up to the opening part of recess.

Technical Field

The invention relates to the field of stainless steel pipes, in particular to a nondestructive inner wall detection device for a stainless steel pipe.

Background

By selecting the test method and the test device for effectively testing the thermal fatigue, the heating capacity of the pipeline under the actual working condition is simulated, and the obtained test data can accurately reflect the performance of the non-metal pipe. Therefore, the real and effective pipeline heating change data is obtained, and the method has important significance and engineering practical value for a nonmetal pipe production party, a use method and failure analysis.

For the current test of the stainless steel pipeline, a hole is usually drilled on the pipeline and then a thermocouple is installed to obtain the temperature of the pipe wall in the experimental process, but the structural strength of part of the stainless steel pipeline is lower and is not as stable as that of a metal pipeline, the local structural strength is rapidly reduced after the hole is drilled or grooved, and the hole is more easily subjected to thermal fatigue after being heated, so that the stainless steel pipeline after the hole is drilled is not easy to accurately reflect the actual working performance of the pipeline, and a device for nondestructive measurement of the temperature of the pipe wall is needed.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a nondestructive inner wall detection device for a stainless steel pipe.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A nondestructive inner wall detection device for a stainless steel pipe comprises a stainless steel pipe body, wherein two ends of the stainless steel pipe body are both connected with detection devices, each detection device comprises a support ring, two ends of each support ring are rotatably connected with a turntable matched with the stainless steel pipe body, each turntable is connected with the stainless steel pipe body through a flange, a detection line is connected between each pair of support rings, each detection line comprises a sensing base line, a waterproof sleeve is fixedly connected to the outer side of each sensing base line, a pair of composite heat-insulating sheets are connected between each sensing base line and each waterproof sleeve, each waterproof sleeve is attached to the inner wall of the stainless steel pipe body, a wiring device matched with each detection line is fixedly connected to the inner wall of each support ring, each wiring device comprises a shell, a guide wheel is rotatably connected to each shell, a sealing clamp is fixedly connected to each shell, each sealing clamp comprises an electric push rod, fixedly connected with and detection line assorted splint on electric putter's the power take off end, this scheme lays the detection line through the pipeline inner wall and carries out the multiple spot to the inner wall each item parameter of pipeline and detect, and the installation of detection line is controllable in length, easily adapts to the pipeline of different length, and installation and working process are difficult for causing the damage to the pipeline inner wall, guarantees the integrality of pipeline, still can clear up the pipeline inner wall through the detection line, reduces the influence of pipeline inner wall deposit to pipeline detection.

Further, multistage temperature sensitive resistor on the response baseline is installed between two piezoelectric diaphragms, and temperature sensitive resistor is located the piezoelectric diaphragm top, the response baseline includes a pair of integrated spool, and is a pair of integrated spool distributes and runs through a plurality of temperature sensitive resistor and piezoelectric diaphragm, wear to be equipped with a plurality of wires in the integrated spool, every piezoelectric diaphragm and temperature sensitive resistor establish ties with a wire respectively, detect the pressure of water to the response baseline through piezoelectric diaphragm to obtain the pressure of water to the pipe wall, detect the temperature of pipe wall through temperature sensitive resistor.

Furthermore, the composite heat insulation sheet comprises a heat insulation film fixedly connected with the piezoelectric film, the lower end of the heat insulation film is fixedly connected with a support sheet matched with the temperature-sensitive resistor, and the support sheet supports the width of the detection line, so that the detection line is not easy to generate large deformation, and a large gap is not easy to generate when the detection line is collected into the wiring device.

Furthermore, the outer wall of the support ring is fixedly connected with a sealing ring matched with the turntable, and a waterproof bearing is connected between the turntable and the support ring.

Furthermore, the both ends of nonrust steel pipe main part all fixedly connected with carousel assorted flange ring, the diameter of flange ring is less than the diameter of carousel.

Further, fixedly connected with and termination assorted water conservancy diversion ring on the inner wall of support ring, set up on the water conservancy diversion ring with detection line assorted bar groove, and the bar groove communicates with each other with termination, the thickness and the detection line thickness phase-match in bar groove, water conservancy diversion ring cover termination makes the detection line can not outstanding in the inner wall of support ring when inserting termination, reduces detection line and termination and to the interior fluidic resistance of support ring.

Further, the top joint of support ring has servo motor, fixedly connected with driving gear on servo motor's the power take off, seted up on the outer wall of carousel with driving gear assorted tooth's socket, technical staff can install servo motor additional as required and control the carousel rotatory to this makes the detection line decontaminate the stainless steel pipe main part inner wall.

The utility model provides a nondestructive inner wall detection device for nonrust steel pipe includes a control system, control system is including installing the controller in termination, install one in the termination have with guide pulley assorted step motor, electric putter and step motor all with controller electric connection, the outside of support ring be equipped with detection line assorted treater, treater and controller signal connection.

Further, waterproof cover is made by waterproof silica gel, and waterproof cover's lower extreme sets up a plurality of evenly distributed's recess, 45 chamfers are seted up to the opening part of recess, through outer wall set up a plurality of discoid recesses of inhaling under waterproof cover, and detection line can firmly adsorb on nonrust steel pipe main part inner wall when making waterproof cover pressurized, makes the detection line difficult emergence skew.

A nondestructive inner wall detection device for a stainless steel pipe comprises the following installation and debugging methods:

s1, firstly, a detection line is penetrated in the stainless steel pipe main body, and the detection line is attached to the bottom end of the inner wall of the stainless steel pipe main body;

s2, clamping the two ends of the detection line into the wiring devices on the two support rings respectively, and then starting the stepping motor to enable the guide wheel to rotate and pull the detection line to move until one end of the detection line leaves from the other end of the shell;

s3, connecting the detection line to a processor, controlling the electric push rod to move at the moment, sealing and fixing the connection part of the detection line and the shell by a clamping plate, sending an electric signal to the processor by a piezoelectric membrane on the detection line at the extrusion part at the moment, storing an activated state of a circuit corresponding to the piezoelectric membrane and a temperature-sensitive resistor between the two piezoelectric membranes sending signals after the processor receives the signal, and closing the rest circuits;

and S4, finally, connecting the input pipe and the output pipe of the fluid into a pair of support rings.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is laid the detection line through the pipeline inner wall and is come to carry out the multiple spot to the inner wall each item parameter of pipeline and detect, and the installation of detection line is controllable in length, easily adapts to the pipeline of different length, and installation and working process are difficult for causing the damage to the pipeline inner wall, guarantees the integrality of pipeline, still can clear up the pipeline inner wall through the detection line, reduces the influence of pipeline inner wall deposit to pipeline detection.

(2) Multistage temperature sensitive resistor on the response baseline is installed between two piezoelectric diaphragm, and temperature sensitive resistor is located piezoelectric diaphragm top, and the response baseline includes a pair of integrated spool, and a pair of integrated spool distributes and runs through a plurality of temperature sensitive resistor and piezoelectric diaphragm, wears to be equipped with a plurality of wires in the integrated spool, and every piezoelectric diaphragm and temperature sensitive resistor establish ties with a wire respectively, detects the pressure of water to the response baseline through piezoelectric diaphragm to obtain the pressure of water to the pipe wall, detect the temperature of pipe wall through temperature sensitive resistor.

(3) Fixedly connected with and termination assorted water conservancy diversion ring on the inner wall of support ring, set up on the water conservancy diversion ring with detection line assorted bar groove, and the bar groove communicates with each other with termination, the thickness in bar groove and detection line thickness phase-match, water conservancy diversion ring cover termination makes the detection line can not stand out in the inner wall of support ring when inserting termination, reduces detection line and termination to the interior fluidic resistance of support ring.

(4) The waterproof cover is made by waterproof silica gel, and a plurality of evenly distributed's recess has been seted up to the lower extreme of waterproof cover, and 45 chamfers have been seted up to the opening part of recess, sets up a plurality of discoid recesses of inhaling through outer wall under the waterproof cover, and detection line can firmly adsorb on nonrust steel pipe main part inner wall when making waterproof cover pressurized, makes the detection line difficult emergence skew.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention with a servo motor installed;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of the structure at B in FIG. 2;

FIG. 5 is a partial cross-sectional view of a sealing clip according to the present invention;

FIG. 6 is a schematic view of the structure at C in FIG. 5;

FIG. 7 is a functional block diagram of the present invention;

fig. 8 is a flow chart of the use of the present invention.

The reference numbers in the figures illustrate:

the device comprises a stainless steel pipe body 1, a support ring 2, a turntable 3, a detection line 4, a sensing base line 401, a waterproof jacket 402, a composite heat-insulating sheet 403, a wiring device 5, a shell 501, a guide wheel 502, a sealing clamp 6, an electric push rod 601 and a clamping plate 602.

Detailed Description

In this embodiment 1, the technical solution will be clearly and completely described in conjunction with the disclosed drawings, so that the purpose, technical solution and beneficial effects of the embodiments of the present disclosure will be more clear. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" and similar words are intended to mean that the elements or items listed before the word cover the elements or items listed after the word and their equivalents, without excluding other elements or items. "upper", "lower", "inside", "outside", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Example 1:

referring to fig. 1-4, a nondestructive inner wall detection device for a stainless steel pipe comprises a stainless steel pipe body 1, wherein both ends of the stainless steel pipe body 1 are connected with detection devices, each detection device comprises a support ring 2, both ends of each support ring 2 are rotatably connected with a turntable 3 matched with the stainless steel pipe body 1, each turntable 3 is in flange connection with the stainless steel pipe body 1, a detection line 4 is connected between each pair of support rings 2, each detection line 4 comprises a sensing base line 401, a waterproof sleeve 402 is fixedly connected to the outer side of each sensing base line 401, a pair of composite heat insulation sheets 403 are connected between each sensing base line 401 and the waterproof sleeve 402, each composite heat insulation sheet 403 comprises a heat insulation film fixedly connected with a piezoelectric membrane, the lower end of each heat insulation film is fixedly connected with a support sheet matched with a temperature-sensitive resistor, the support sheet supports the width of the detection line 4, and ensures that the detection line 4 is not prone to generate large deformation, the detection line 4 is not easy to generate larger gaps when being collected into the wiring device 5;

referring to fig. 4-6, a waterproof jacket 402 is attached to the inner wall of the stainless steel tube body 1, the waterproof jacket 402 is made of waterproof silica gel, a pair of shaped scrapers is fixedly connected to the outer wall of the waterproof jacket 402, the shaped scrapers are woven from elastic metal fibers, so that pollutants attached to the inner wall of the stainless steel tube body 1 can be scraped off when the waterproof jacket 402 moves along the inner wall of the stainless steel tube body 1, a plurality of uniformly distributed grooves are formed in the lower end of the waterproof jacket 402, 45-degree chamfers are formed at openings of the grooves, and the detection lines 4 can be firmly adsorbed on the inner wall of the stainless steel tube body 1 when the waterproof jacket 402 is pressed, so that the detection lines 4 are not easy to deviate;

multistage temperature sensitive resistor on the response baseline 401 is installed between two piezoelectric diaphragm, and temperature sensitive resistor is located the piezoelectric diaphragm top, and response baseline 401 includes a pair of integrated spool, and a pair of integrated spool distributes and runs through a plurality of temperature sensitive resistor and piezoelectric diaphragm, wears to be equipped with a plurality of wires in the integrated spool, and every piezoelectric diaphragm and temperature sensitive resistor establish ties with a wire respectively, detects the pressure of water to response baseline 401 through piezoelectric diaphragm to obtain the pressure of water to the pipe wall, detect the temperature of pipe wall through temperature sensitive resistor.

Referring to fig. 3 and 5, a wiring device 5 matched with the detection line 4 is fixedly connected to the inner wall of the support ring 2, the wiring device 5 comprises a housing 501, a guide wheel 502 is rotatably connected to the housing 501, a sealing clamp 6 is fixedly connected to the housing 501, the sealing clamp 6 comprises an electric push rod 601, a clamping plate 602 matched with the detection line 4 is fixedly connected to a power output end of the electric push rod 601, the clamping plate 602 comprises a C-shaped plate and a straight plate, the inner diameter of the C-shaped plate is matched with the width of the detection line 4, the straight plate is slidably connected to the C-shaped plate, a plurality of compression springs are connected between the C-shaped plate and the straight plate, when the clamping plate 602 completely descends, the straight plate is not subjected to the action of the compression springs, the upper surface of the straight plate is attached to the bottom end of the detection line 4, and the straight plate does not apply thrust to the detection line 4 at this time;

referring to fig. 3-4, both ends of the stainless steel tube body 1 are fixedly connected with flange rings matched with the rotating disc 3, and the diameter of the flange rings is smaller than that of the rotating disc 3. Fixedly connected with and 3 assorted sealing rings of carousel on the outer wall of support ring 2 are connected with waterproof bearing between carousel 3 and the support ring 2. Fixedly connected with and 5 assorted water conservancy diversion rings of termination on the inner wall of support ring 2, set up on the water conservancy diversion ring with detection line 4 assorted bar groove, and the bar groove communicates with each other with termination 5, the thickness in bar groove and detection line 4 thickness phase-match, water conservancy diversion ring cover termination 5 makes detection line 4 can not outstanding in the inner wall of support ring 2 when inserting termination 5, reduces the resistance of detection line 4 and termination 5 to the interior fluid of support ring 2.

Please refer to fig. 3, a servo motor is clamped at the top end of the support ring 2, the servo motor is detachably mounted, a technician in the field can carry out an additional clamping jaw to assist in driving the rotation of the turntable 3 when the pipe wall needs to be cleaned, a driving gear is fixedly connected to the power output end of the servo motor, a tooth socket matched with the driving gear is formed in the outer wall of the turntable 3, the technician can additionally mount the servo motor to control the rotation of the turntable 3 according to the requirement, so that the detection line 4 can clean the inner wall of the stainless steel pipe body 1, and the flow of fluid in the stainless steel pipe body 1 is reduced when the stainless steel pipe body 1 is cleaned.

Referring to fig. 7, a nondestructive inner wall detection device for a stainless steel pipe comprises a control system, the control system comprises a controller installed in a wiring device 5, a stepping motor matched with a guide wheel 502 is installed in the wiring device 5, an electric push rod 601 and the stepping motor are both electrically connected with the controller, a processor matched with a detection line 4 is arranged on the outer side of a support ring 2, and the processor is in signal connection with the controller.

Referring to fig. 8, a nondestructive inner wall inspection apparatus for a stainless steel pipe, the installation and debugging method thereof is as follows:

s1, firstly, a detection line 4 is arranged in the stainless steel pipe body 1 in a penetrating mode, and the detection line 4 is attached to the bottom end of the inner wall of the stainless steel pipe body 1;

s2, the two ends of the detection wire 4 are respectively clamped into the wiring devices 5 on the two support rings 2, then the stepping motor is started, the guide wheel rotates, and the detection wire 4 is pulled to move until one end of the detection wire 4 leaves from the other end of the shell 501;

s3, connecting the detection line 4 into a processor, controlling the electric push rod 601 to move at the moment, enabling the clamping plate 602 to seal and fix the connection position of the detection line 4 and the shell 501, sending an electric signal to the processor by the piezoelectric membrane on the detection line 4 at the extrusion position, storing an activation state of a circuit corresponding to the piezoelectric membrane and the temperature-sensitive resistor between the two piezoelectric membranes sending signals after the processor receives the signals, and closing the rest circuits;

s4, finally, the input and output pipes of the fluid are connected to a pair of support rings 2.

This scheme lays detection line 4 on through the pipeline inner wall and comes to carry out the multiple spot to the inner wall each item parameter of pipeline and detect, and detection line 4 installs length controllable, easily adapts to the pipeline of different length, and installation and working process are difficult for causing the damage to the pipeline inner wall, guarantees the integrality of pipeline, still can clear up the pipeline inner wall through detection line 4, reduces the influence of pipeline inner wall deposit to pipeline detection.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.