CN112414645A - Pressure vessel weld joint detection tool and detection method - Google Patents
Pressure vessel weld joint detection tool and detection method Download PDFInfo
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- CN112414645A CN112414645A CN202011432035.4A CN202011432035A CN112414645A CN 112414645 A CN112414645 A CN 112414645A CN 202011432035 A CN202011432035 A CN 202011432035A CN 112414645 A CN112414645 A CN 112414645A
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- fixedly connected
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- pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a welding seam detection tool and a welding seam detection method for a pressure container, and the welding seam detection tool comprises a base, wherein the top of the base is fixedly connected with a supporting rod, the top end of the supporting rod is fixedly connected with a supporting frame, a driving mechanism is arranged on the base, an air exhaust assembly is arranged on the left side of the top of the base, and an adjusting assembly is arranged on the right side of the top of the base. The pressure vessel welding line detection tool and the detection method have the advantages that the adjustment assembly is matched with the air exhaust assembly, workers can be helped to judge the approximate leakage position in the detection process, the troubleshooting range after leakage detection is reduced, the labor intensity of workers is reduced, the practicability is improved, the supporting plate can be pulled back and forth, when the supporting plate moves to the forefront, the placing seat moves to the front of the base, the tank body is convenient to place, the use is more convenient, the distance between the air exhaust assembly and the adjustment assembly can be adjusted, and the application range is wider.
Description
Technical Field
The invention relates to the technical field of weld joint detection, in particular to a tool and a method for detecting a weld joint of a pressure container.
Background
The pressure container is a closed device which contains gas or liquid and bears certain pressure, has extremely wide application, has important status and function in many departments such as industry, civil use, military industry and the like and many fields of scientific research, is most used in chemical industry and petrochemical industry, and needs a detection tool to detect the welding seam of a welded tank body in the processing process of the pressure container such as a pressure tank so as to judge whether the air tightness of the pressure container meets the requirement.
The existing welding line detection tool for the pressure container, such as the patent with the publication number of CN210037078U, discloses a welding line detection tool for the pressure container, the scheme detects the air tightness of the pressure container by observing whether the latex bag on the pressure container is bulged or not and judging whether the welding line leaks air or not, and the tool has the characteristics of convenience in operation and convenience in use, but the reference case still has the following defects: in the testing process, detect the whole while of jar body, when detecting out to have the leakage phenomenon, need go on getting rid of one by one to the welding seam in different positions, could find the concrete position of leaking, the practicality is not good enough.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a pressure vessel welding line detection tool and a detection method, and solves the problems that when a leakage phenomenon is detected, the specific position of the leakage can be found only by removing welding lines at different positions one by one, and the practicability is poor.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a pressure vessel welding seam detects frock, includes the base, the top fixedly connected with bracing piece of base to the top fixedly connected with support frame of bracing piece, be provided with actuating mechanism on the base, the left side at base top is provided with the subassembly of bleeding to the right side at base top is provided with adjusting part.
The adjusting part comprises a first movable plate which is connected with the right side of the bottom of the support frame in a sliding mode through a sliding rail, a first hydraulic cylinder is fixedly connected to the left side of the first movable plate, a sealing plate is fixedly connected to the output end of the first hydraulic cylinder, guide rods are fixedly connected to the top and the bottom of the right side of the sealing plate, and one ends, far away from the sealing plate, of the guide rods penetrate through the first movable plate and extend to the right side of the first movable plate.
The air exhaust assembly comprises a second movable plate and an air pump, the second movable plate is connected with the left side of the bottom of the support frame in a sliding mode, the air pump is fixed to the left side of the top of the base, a sealing cover is fixedly connected to the right side of the second movable plate, an air inlet of the air pump is communicated with an air inlet pipe, and one end, far away from the air pump, of the air inlet pipe penetrates through the second movable plate and the sealing cover and.
Preferably, actuating mechanism is including fixing the motor on the base right side, the two-way threaded rod of output fixedly connected with of motor, the one end that the motor was kept away from to the two-way threaded rod runs through to the inside of base and is connected with the left side rotation of base inner wall.
Preferably, the two sides of the two-way threaded rod, which are located on the inner surface of the base, are respectively in threaded connection with a movable block, two movable blocks are respectively in fixed connection with a connecting plate, which penetrates through the connecting plate above the base, at the tops of the two connecting plates, and the tops of the two connecting plates are respectively in fixed connection with the bottoms of the first movable plate and the second movable plate.
Preferably, the top of base has the backup pad through slide rail sliding connection to the seat is placed to the top fixedly connected with of backup pad, the equal fixedly connected with supporting leg in both sides that the backup pad bottom is located base the place ahead to the bottom of two supporting legs all is connected with the gyro wheel through the support rotation.
Preferably, the equal fixedly connected with in both sides at support frame top runs through to the second pneumatic cylinder of support frame bottom, two the equal fixedly connected with of output of second pneumatic cylinder presses the seat to the top fixedly connected with pressure sensor who presses the seat inner wall.
The invention also discloses a detection method of the pressure vessel weld joint detection tool, which specifically comprises the following steps:
s1, holding the handle on the supporting plate, pulling the supporting plate forwards to drive the placing seat to move forwards to the forefront, and then placing the tank body to be detected on the placing seat;
s2, pushing the supporting plate to drive the placing seat to move to an initial position, then enabling the second hydraulic cylinder to work through an external control switch, pushing the pressing seat to move downwards, and enabling the pressing seat and the placing seat to be matched with each other to form a sealed cavity;
s3, enabling the motor to work through the external control switch, enabling the bidirectional threaded rod to rotate to drive the two movable blocks to move towards the middle, further driving the first movable plate and the second movable plate to move towards the middle through the connecting plate, enabling the sealing cover to seal the left side of the tank body, enabling the sealing plate to move into the tank body, enabling the first hydraulic cylinder to work through the external control switch, and pushing the sealing plate to move to the deepest position towards the inside of the tank body;
s4, starting the air pump, and simultaneously slowly contracting the first hydraulic cylinder to drive the sealing plate to move in the direction away from the sealing cover, wherein in the moving process of the sealing plate, the pressure sensor constantly monitors the pressure between the pressure seat and the placing seat;
s5, if the pressure sensor detects that the pressure between the pressure seat and the placing seat changes, the welding seam has a leakage point, the leakage point can be judged according to the position of the sealing plate, and if the sealing plate does not detect the pressure change all the time in the movement process, the welding seam of the tank body has no leakage point.
(III) advantageous effects
The invention provides a pressure vessel weld joint detection tool and a detection method. Compared with the prior art, the method has the following beneficial effects:
(1) the left side through the base top is provided with the air exhaust assembly, the right side at the base top is provided with the adjusting assembly, the adjusting assembly comprises a first movable plate which is connected with the right side of the bottom of the support frame in a sliding mode through a sliding rail, the output end of the first hydraulic cylinder is fixedly connected with a sealing plate, the air exhaust assembly comprises a second movable plate which is connected with the left side of the bottom of the support frame in a sliding mode and an air pump which is fixed on the left side of the top of the base, the right side of the second movable plate is fixedly connected with a sealing cover, the adjusting assembly is matched with the air exhaust assembly, the tool can help workers to judge the approximate leakage position in the detection process, the investigation range after leakage detection is reduced, the labor intensity of workers.
(2) According to the pressure container welding line detection tool and the detection method, the supporting plate is connected to the top of the base through the sliding rail in a sliding mode, the supporting seat is fixedly connected to the top of the supporting plate, the supporting legs are fixedly connected to the two sides of the bottom of the supporting plate in front of the base, the idler wheels are connected to the bottoms of the two supporting legs in a rotating mode through the supports, the supporting plate can be pulled back and forth, when the supporting plate moves to the forefront, the supporting plate moves to the front of the base, the tank body is convenient to place, and the.
(3) This pressure vessel welding seam detects frock and detection method, including fixing the motor on the base right side through actuating mechanism, the two-way threaded rod of output fixedly connected with of motor, the equal threaded connection in both sides that the two-way threaded rod is located the base internal surface has the movable block, the equal fixedly connected with in top of two movable blocks runs through the connecting plate to the base top, and the top of two connecting plates respectively with the bottom fixed connection of first fly leaf and second fly leaf, drive assembly can adjust the distance between bleed subassembly and the adjustment subassembly, make the device can be applicable to the jar body detection of different length, application scope is wider.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a side cross-sectional view of the present invention;
fig. 4 is a perspective view of the pressing base and the placing base of the present invention.
In the figure, 1 base, 2 support rods, 3 support frames, 4 driving mechanisms, 41 motors, 42 bidirectional threaded rods, 43 movable blocks, 44 connecting plates, 5 air pumping assemblies, 51 second movable plates, 52 air pumps, 53 sealing covers, 54 air inlet pipes, 6 adjusting assemblies, 61 first movable plates, 62 first hydraulic cylinders, 63 sealing plates, 64 guide rods, 7 support plates, 8 placing seats, 9 support legs, 10 rollers, 11 second hydraulic cylinders, 12 pressure seats and 13 pressure sensors are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention provides a technical solution: a welding line detection tool for a pressure container comprises a base 1, wherein the top of the base 1 is connected with a support plate 7 in a sliding manner through a sliding rail, the top of the support plate 7 is fixedly connected with a handle positioned in front of a placing seat 8 and used for pulling the support plate 7 to move, the top of the support plate 7 is fixedly connected with the placing seat 8, two sides of the bottom of the support plate 7 positioned in front of the base 1 are fixedly connected with support legs 9, the bottom ends of the two support legs 9 are respectively connected with a roller 10 through a support in a rotating manner so as to facilitate the movement of the support plate 7, the top of the base 1 is fixedly connected with a support rod 2, the top end of the support rod 2 is fixedly connected with a support frame 3, two sides of the top of the support frame 3 are respectively and fixedly connected with second hydraulic cylinders 11 penetrating through the bottom of the support, the model of the pressure sensor 13 is PTG501, and is electrically connected with an external control switch and a power supply through a wire, a driving mechanism 4 is arranged on the base 1, an air pumping assembly 5 is arranged on the left side of the top of the base 1 and used for pumping gas in the tank body to be detected, and an adjusting assembly 6 is arranged on the right side of the top of the base 1 and used for adjusting the position of the sealing plate 63.
In the embodiment of the present invention, the adjusting assembly 6 includes a first movable plate 61 slidably connected to the right side of the bottom of the supporting frame 3 through a sliding rail, a first hydraulic cylinder 62 is fixedly connected to the left side of the first movable plate 61, a sealing plate 63 is fixedly connected to an output end of the first hydraulic cylinder 62, guide rods 64 are fixedly connected to the top and the bottom of the right side of the sealing plate 63, and ends of the two guide rods 64, which are far away from the sealing plate 63, extend through the first movable plate 61 and extend to the right side of the first movable plate 61.
In the embodiment of the present invention, the air pumping assembly 5 includes a second movable plate 51 slidably connected to the left side of the bottom of the supporting frame 3 and an air pump 52 fixed to the left side of the top of the base 1, a sealing cover 53 is fixedly connected to the right side of the second movable plate 51, an air inlet of the air pump 52 is communicated with an air inlet pipe 54, and one end of the air inlet pipe 54, which is far away from the air pump 52, penetrates through the second movable plate 51 and the sealing cover 53 and extends into the sealing cover.
In the embodiment of the present invention, the driving mechanism 4 includes a motor 41 fixed on the right side of the base 1, an output end of the motor 41 is fixedly connected with a bidirectional threaded rod 42, one end of the bidirectional threaded rod 42 far away from the motor 41 penetrates into the base 1 and is rotatably connected with the left side of the inner wall of the base 1, two sides of the bidirectional threaded rod 42 located on the inner surface of the base 1 are both in threaded connection with movable blocks 43, the tops of the two movable blocks 43 are both fixedly connected with connecting plates 44 penetrating above the base 1, and the tops of the two connecting plates 44 are respectively fixedly connected with the bottoms of the first movable plate 61 and the second movable plate 51.
The invention also discloses a detection method of the pressure vessel weld joint detection tool, which specifically comprises the following steps:
s1, holding a handle on the supporting plate 7, pulling the supporting plate 7 forwards to drive the placing seat 8 to move forwards to the forefront, and then placing the tank body to be detected on the placing seat 8;
s2, pushing the supporting plate 7 to drive the placing seat 8 to move to an initial position, then enabling the second hydraulic cylinder 11 to work through an external control switch, pushing the pressing seat 12 to move downwards, enabling the pressing seat 12 and the placing seat 8 to be mutually matched, and forming a sealed cavity;
s3, enabling the motor 41 to work through an external control switch, enabling the bidirectional threaded rod 42 to rotate, driving the two movable blocks 43 to move towards the middle, further driving the first movable plate 61 and the second movable plate 51 to move towards the middle through the connecting plate 44, enabling the sealing cover 53 to seal the left side of the tank body, enabling the sealing plate 63 to move into the tank body, enabling the first hydraulic cylinder 62 to work through the external control switch, and pushing the sealing plate 63 to move to the deepest position towards the inside of the tank body;
s4, starting the air pump 52, and simultaneously slowly contracting the first hydraulic cylinder 62 to drive the sealing plate 63 to move away from the sealing cover 53, wherein in the movement process of the sealing plate 63, the pressure sensor 13 monitors the pressure between the pressure seat 12 and the placing seat 8 at any time;
s5, if the pressure sensor 13 detects that the pressure between the pressure seat 12 and the placing seat 8 changes, the welding seam has a leakage point, the leakage point can be judged according to the position of the sealing plate 63, and if the pressure sensor 13 does not detect the pressure change all the time in the movement process of the sealing plate 63, the welding seam of the tank body has no leakage point.
It is noted that, herein, relational terms such as first and second, and the like may 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. Also, 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a pressure vessel welding seam detects frock, includes base (1), the top fixedly connected with bracing piece (2) of base (1) to the top fixedly connected with support frame (3) of bracing piece (2), its characterized in that: the device is characterized in that a driving mechanism (4) is arranged on the base (1), an air exhaust assembly (5) is arranged on the left side of the top of the base (1), and an adjusting assembly (6) is arranged on the right side of the top of the base (1);
the adjusting assembly (6) comprises a first movable plate (61) which is connected with the right side of the bottom of the support frame (3) in a sliding manner through a sliding rail, the left side of the first movable plate (61) is fixedly connected with a first hydraulic cylinder (62), the output end of the first hydraulic cylinder (62) is fixedly connected with a sealing plate (63), the top and the bottom of the right side of the sealing plate (63) are fixedly connected with guide rods (64), and one ends, far away from the sealing plate (63), of the two guide rods (64) penetrate through the first movable plate (61) and extend to the right side of the first movable plate (61);
air extraction subassembly (5) including with support frame (3) bottom left side sliding connection's second fly leaf (51) and fix at base (1) top left side air pump (52), the right side fixedly connected with sealed lid (53) of second fly leaf (51), the air inlet intercommunication of air pump (52) has intake pipe (54), the one end that air pump (52) were kept away from in intake pipe (54) runs through second fly leaf (51) and sealed lid (53) and extends to the inside of sealed lid (53).
2. The pressure vessel weld joint detection tool according to claim 1, characterized in that: actuating mechanism (4) are including fixing motor (41) on base (1) right side, the output fixedly connected with two-way threaded rod (42) of motor (41), the one end that motor (41) were kept away from in two-way threaded rod (42) runs through to the inside of base (1) and is connected with the left side rotation of base (1) inner wall.
3. The pressure vessel weld joint detection tool according to claim 1, characterized in that: the two-way threaded rod (42) is located the equal threaded connection in both sides of base (1) internal surface and has movable block (43), two the equal fixedly connected with in top of movable block (43) runs through to connecting plate (44) of base (1) top to the top of two connecting plates (44) respectively with the bottom fixed connection of first fly leaf (61) and second fly leaf (51).
4. The pressure vessel weld joint detection tool according to claim 1, characterized in that: the top of base (1) has backup pad (7) through slide rail sliding connection to the top fixedly connected with of backup pad (7) places seat (8), backup pad (7) bottom is located the equal fixedly connected with supporting leg (9) in both sides in base (1) the place ahead, and the bottom of two supporting legs (9) all is connected with gyro wheel (10) through the support rotation.
5. The pressure vessel weld joint detection tool according to claim 3, characterized in that: the equal fixedly connected with in both sides at support frame (3) top runs through second pneumatic cylinder (11) to support frame (3) bottom, two the equal fixedly connected with in output of second pneumatic cylinder (11) presses seat (12) to press top fixedly connected with pressure sensor (13) of seat (12) inner wall.
6. The detection method of the pressure vessel weld joint detection tool according to any one of claims 1 to 5, characterized by comprising the following steps: the method specifically comprises the following steps:
s1, holding a handle on the supporting plate (7), pulling the supporting plate (7) forwards to drive the placing seat (8) to move forwards to the forefront, and then placing the tank body to be detected on the placing seat (8);
s2, pushing the supporting plate (7) to drive the placing seat (8) to move to an initial position, then enabling the second hydraulic cylinder (11) to work through an external control switch, pushing the pressing seat (12) to move downwards, and enabling the pressing seat (12) and the placing seat (8) to be matched with each other to form a sealed cavity;
s3, enabling the motor (41) to work through the external control switch, enabling the bidirectional threaded rod (42) to rotate to drive the two movable blocks (43) to move towards the middle, further driving the first movable plate (61) and the second movable plate (51) to move towards the middle through the connecting plate (44), enabling the sealing cover (53) to seal the left side of the tank body, enabling the sealing plate (63) to move into the tank body, enabling the first hydraulic cylinder (62) to work through the external control switch, and pushing the sealing plate (63) to move to the deepest position towards the inside of the tank body;
s4, starting the air pump (52), and simultaneously slowly contracting the first hydraulic cylinder (62) to drive the sealing plate (63) to move towards the direction far away from the sealing cover (53), wherein in the moving process of the sealing plate (63), the pressure sensor (13) monitors the pressure between the pressure seat (12) and the placing seat (8) at any time;
s5, if the pressure sensor (13) detects that the pressure between the pressure seat (12) and the placing seat (8) changes, the situation that a leakage point exists in the welding seam is indicated, the leakage point can be judged according to the position of the sealing plate (63), and if the sealing plate (63) does not move, the pressure sensor (13) does not detect the pressure change all the time, the situation that the leakage point does not exist in the welding seam of the tank body is indicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432035.4A CN112414645A (en) | 2020-12-10 | 2020-12-10 | Pressure vessel weld joint detection tool and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432035.4A CN112414645A (en) | 2020-12-10 | 2020-12-10 | Pressure vessel weld joint detection tool and detection method |
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| Publication Number | Publication Date |
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| CN112414645A true CN112414645A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011432035.4A Withdrawn CN112414645A (en) | 2020-12-10 | 2020-12-10 | Pressure vessel weld joint detection tool and detection method |
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| CN (1) | CN112414645A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076662A (en) * | 2021-11-15 | 2022-02-22 | 蚌埠通达汽车零部件有限公司 | Welding seam detection device for automobile air storage cylinder |
| CN114323505A (en) * | 2022-03-18 | 2022-04-12 | 山西华羽盛泰科技有限公司 | Pressure container detection device |
| CN115290273A (en) * | 2022-09-30 | 2022-11-04 | 中科摩通(常州)智能制造股份有限公司 | Automobile electronic water pump bottom cover spin welding and air tightness test workstation and detection method thereof |
| CN116046278A (en) * | 2023-03-29 | 2023-05-02 | 山东绿屏工业消防设备有限公司 | Weld tightness detection device and method for gas filling tank |
-
2020
- 2020-12-10 CN CN202011432035.4A patent/CN112414645A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076662A (en) * | 2021-11-15 | 2022-02-22 | 蚌埠通达汽车零部件有限公司 | Welding seam detection device for automobile air storage cylinder |
| CN114076662B (en) * | 2021-11-15 | 2023-09-29 | 蚌埠通达汽车零部件有限公司 | Welding seam detection device for automobile air cylinder |
| CN114323505A (en) * | 2022-03-18 | 2022-04-12 | 山西华羽盛泰科技有限公司 | Pressure container detection device |
| CN115290273A (en) * | 2022-09-30 | 2022-11-04 | 中科摩通(常州)智能制造股份有限公司 | Automobile electronic water pump bottom cover spin welding and air tightness test workstation and detection method thereof |
| CN115290273B (en) * | 2022-09-30 | 2023-01-03 | 中科摩通(常州)智能制造股份有限公司 | Automobile electronic water pump bottom cover spin welding and air tightness test workstation and detection method thereof |
| CN116046278A (en) * | 2023-03-29 | 2023-05-02 | 山东绿屏工业消防设备有限公司 | Weld tightness detection device and method for gas filling tank |
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Application publication date: 20210226 |
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