CN213364157U - Nonrust steel pipe side by side formula gas tightness testing machine - Google Patents
Nonrust steel pipe side by side formula gas tightness testing machine Download PDFInfo
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- CN213364157U CN213364157U CN202021596859.0U CN202021596859U CN213364157U CN 213364157 U CN213364157 U CN 213364157U CN 202021596859 U CN202021596859 U CN 202021596859U CN 213364157 U CN213364157 U CN 213364157U
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Abstract
The utility model belongs to the technical field of nonrust steel pipe quality testing equipment, concretely relates to nonrust steel pipe side by side formula gas tightness testing machine improves work efficiency for reducing intensity of labour. Comprises a support frame body and a water tank, wherein a pipe frame is arranged in the water tank; the lifting mechanisms are arranged at two ends of the water tank and comprise roller assemblies and driving elements, one end of each traction rope is connected with the pipe frame, and the other end of each traction rope is connected to the driving elements by bypassing the roller assemblies; a telescopic cylinder is arranged on one side of the pipe frame, a movable rod of the telescopic cylinder is connected with a first sleeve, a second sleeve is arranged on the other side of the pipe frame, an air delivery hole is formed in the inner bottom of the second sleeve, and the second sleeve is communicated with the air inlet pipe; the inner bottoms of the first sleeve and the second sleeve are provided with sealing gaskets, and the sealing gaskets in the second sleeve are provided with through holes penetrating through the air delivery holes. The utility model has the advantages of compact integral structure, reliable linking, simultaneously air tightness test operation for a plurality of stainless steel pipes, greatly improved production efficiency and reduced labor intensity of workers.
Description
Technical Field
The utility model belongs to the technical field of nonrust steel pipe quality testing equipment, concretely relates to nonrust steel pipe side by side formula gas tightness testing machine.
Background
Since stainless steel pipes are generally used for gas transportation, they are used more often in particular for natural gas pipelines. In the existing stainless steel tube production process, after the stainless steel tube is produced, the airtightness test must be carried out, if the airtightness of the stainless steel tube is not good, gas leakage can occur, and especially, the harm of combustible and toxic gas leakage is huge. The existing air tightness test is generally an underwater test, two ends of a stainless steel pipe are sealed by placing the stainless steel pipe in water, pressurized air is injected into the steel pipe, whether bubbles are generated at the side wall of the stainless steel pipe or not is observed, if the bubbles are generated, a gap exists in the steel pipe, the steel pipe is an unqualified product, and if the bubbles are not generated, the air tightness of the steel pipe is good, and the steel pipe is a qualified product.
The air-tight test method is one of simple and effective means for testing the processing quality, particularly the weld quality, of the stainless steel pipe, however, in the current process and equipment for the air-tight test of the stainless steel pipe, the sealing plugs are sealed at two ports of the stainless steel pipe, compressed air is introduced into the stainless steel pipe through the sealing plugs, then the stainless steel pipe is immersed into the water tank, and after the test is finished, the tested stainless steel pipe is taken out from the water tank.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a higher nonrust steel pipe gas tightness test device of degree of automation of mechanization to reduce intensity of labour, improve work efficiency by a wide margin.
The technical solution for realizing the purpose is as follows: a stainless steel pipe side-by-side air tightness testing machine comprises a support frame body and a water tank horizontally arranged on the support frame body, wherein a pipe frame is arranged in the water tank, and the top ends of support columns positioned at four corners of the water tank on the support frame body extend to the upper part of the water tank; two ends of the water tank in the length direction are provided with lifting mechanisms, each lifting mechanism comprises a roller component arranged between the tops of two support columns on the same side and a driving element fixed on the outer wall of the water tank, and one end of each of at least two traction ropes is connected with the pipe frame, and the other end of each traction rope bypasses the roller component and is connected with the driving element together; one side of the pipe support is provided with a plurality of telescopic cylinders which are longitudinally arranged along the width direction of the pipe support, a movable rod of each telescopic cylinder is connected with a first sleeve, the other side of the pipe support is provided with a second sleeve which coaxially corresponds to the first sleeve, the inner bottom of the second sleeve is provided with an air delivery hole, and the plurality of second sleeves are communicated with an air inlet pipe; the inner bottoms of the first sleeve and the second sleeve are provided with sealing gaskets, and the sealing gaskets in the second sleeve are provided with through holes penetrating through the air delivery holes.
Further, a pipe clamp is arranged on the pipe frame and between the first sleeve and the second sleeve; the pipe clamp comprises a first mounting plate, a fixed clamping strip and a sliding clamping strip which are arranged on the first mounting plate in parallel, and clamping blocks which are arranged on the sliding clamping strip and the fixed clamping strip at intervals; the sliding clamping strip is connected with a guide rail, and the first mounting plate is provided with a guide groove matched with the guide rail; have the logical groove parallel with the guide slot on the first mounting panel, the bolt is worn to locate to lead to the inslot and is fastened the extension board and the first mounting panel of first mounting panel.
The pipe clamp is at the middle part auxiliary positioning stainless steel pipe of being surveyed, through removing the slip holding strip, adjusts the cooperation interval of the clamp splice on slip holding strip and the fixed holding strip, and then presss from both sides the stainless steel pipe of tight different external diameters.
Furthermore, the roller component comprises a rotating shaft and two chain wheels coaxially and fixedly connected with the rotating shaft, and two end heads of the rotating shaft are fixed on the support through shaft seats; the haulage rope is the chain that matches with the sprocket, and drive element is hydraulic cylinder, and the diaphragm is all connected at the both ends of two chains, and one of them diaphragm and pipe support activity overlap joint, another diaphragm are connected with hydraulic cylinder.
Furthermore, a plurality of telescoping cylinder sets up on the second mounting panel, and the second sleeve setting is on the third mounting panel, and first mounting panel or second mounting panel or third mounting panel pass through U type bolt fastening on the pipe support.
The distance between the first mounting plate, the second mounting plate and the third mounting plate can be adjusted according to the length of the stainless steel pipe by adopting a U-shaped bolt connection mode, and then the stainless steel pipe with any length can be tightly clamped by the first sleeve and the second sleeve.
Further, the pipe support is a triangular prism frame.
Compared with the prior art, the utility model has the advantages that:
the utility model provides a pair of nonrust steel pipe side by side formula air tightness testing machine, overall structure is compact, links up reliably, and degree of automation is higher, can carry out airtight test operation to many nonrust steel pipes simultaneously, has improved production efficiency greatly, has alleviateed workman's intensity of labour.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a schematic view of the structure of the pipe clamp.
Fig. 4 is a schematic view of the connection of the first mounting plate, the second mounting plate or the third mounting plate to the pipe frame.
In the figure: 1-supporting a frame body; 2-a water tank; 3-pipe frame; 4-a telescopic cylinder; 5-a first sleeve; 6-a second sleeve; 7-pipe clamp; 8-a rotating shaft; 9-a sprocket; 10-a chain; 11-a hydraulic oil cylinder; 12-connecting the transverse plates; 13-a second mounting plate; 14-third mounting plate.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
A side-by-side type airtightness testing machine for stainless steel pipes, which is shown in fig. 1 and 2; including supporting support body 1, the level sets up water tank 2 on supporting support body 1, and water tank 2 is for not having top surface cuboid groove. Be provided with pipe support 3 in the water tank 2, pipe support 3 is triangular prism frame that the cross-section is isosceles triangle, and the bottom surface sets up upwards. The top ends of the support columns 101 positioned at four corners of the water tank 2 on the support frame body 1 extend to the upper part of the water tank 2; the length of the portion of the support 101 that exceeds the top surface of the water tank 2 is determined according to the vertical displacement distance of the pipe frame 3. The two ends of the water tank 2 in the length direction are provided with lifting mechanisms, the lifting mechanisms are connected with the two ends of the pipe frame 3, and the two groups of lifting mechanisms work synchronously to lift and drop the pipe frame 3. The lifting mechanism comprises a roller component arranged between the top ends of the two support columns 101 on the same side, the roller component comprises a rotating shaft 8 and two chain wheels 9 coaxially and fixedly connected with the rotating shaft 8, and two end heads of the rotating shaft 8 are fixed on the support columns 101 through shaft seats; the water tank is characterized by further comprising a hydraulic oil cylinder 11 fixedly arranged on the outer wall of the water tank 2, one end of each of two chains 10 which are respectively matched with the chain wheel 9 is connected with the pipe support 3, and the other end of each chain bypasses the chain wheel 9 and is connected with the hydraulic oil cylinder 11 together. The two ends of the two chains 10 are hinged with transverse plates 12, one transverse plate is movably lapped with the two longitudinal rods of the pipe frame 3, and the other transverse plate is connected with a piston rod of the hydraulic oil cylinder 11. A piston rod of the hydraulic oil cylinder 11 is retracted, and the pipe frame 3 is lifted up through the chain 10; the piston rod of the hydraulic oil cylinder 11 extends out, and the pipe frame 3 descends under the action of the self gravity.
A second mounting plate 13 is mounted on one side of the pipe frame 3 through a U-shaped bolt, and a plurality of telescopic cylinders 4 are longitudinally arranged on the second mounting plate 13 along the width direction of the pipe frame 3; the telescopic cylinder 4 is a cylinder and is connected with an external air source. The movable rod of each telescopic cylinder 4 is connected with a first sleeve 5. A third mounting plate 14 is mounted on the other side of the pipe support 3 through a U-shaped bolt, a second sleeve 6 which is coaxial and corresponding to the first sleeve 5 is arranged on the third mounting plate 14, an air delivery hole is formed in the inner bottom of the second sleeve 6, and the second sleeves 6 are communicated with an air inlet pipe; the air inlet pipe is communicated with an external high-pressure air source. The inner bottoms of the first sleeve 5 and the second sleeve 6 are provided with sealing gaskets, and the sealing gaskets in the second sleeve 6 are provided with through holes penetrating through the air transmission holes.
A pipe clamp 7 is arranged on the pipe frame 3 and between the first sleeve 5 and the second sleeve 6; the pipe clamp 7 includes a first mounting plate 701, a fixed clip strip 702 and a sliding clip strip 703 provided in parallel to each other on the first mounting plate 701. Clamping blocks 704 are arranged on the sliding clamping strip 703 and the fixed clamping strip 702 at intervals; the number of clamping blocks 704 on the sliding clamping strip 703 or the fixed clamping strip 702 is one more than the number of first sleeves 5; and the distance between the clamping blocks 704 on the sliding clamping strip 703 or the fixed clamping strip 702 is larger than the inner diameter of the first sleeve 5. The sliding clamping bar 703 is connected with a guide rail 7031, and the first mounting plate 701 is provided with a guide groove 7012 matched with the guide rail 7031; the first mounting plate 7011 is provided with a through groove 7011 parallel to the guide groove 7012, and a bolt is inserted into the through groove 7011 to fasten the extension plate 7032 of the first mounting plate 701 to the first mounting plate 701.
Before the air tightness test is carried out; injecting a proper amount of water into the water tank 2; starting the hydraulic oil cylinder 11, lifting the pipe frame 3 to the top surface to be flush with the wall of the water tank 2, then lifting the stainless steel pipes one by one, placing the stainless steel pipes in the grooves of the pipe clamps 7, and respectively extending two ends of each stainless steel pipe into the first sleeve 5 and the second sleeve 6; starting the telescopic cylinder 4 to tightly press the stainless steel pipe; after the stainless steel pipes are completely installed, the pipe frame 3 is lowered to the water to ensure that the stainless steel pipes are completely submerged by the water; opening an external high-pressure gas source, and observing whether bubbles are generated near the stainless steel pipe to be detected; after the test is finished, the pipe frame 3 is lifted, the first sleeve 5 retracts, and the stainless steel pipe is taken down.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides a nonrust steel pipe side by side formula air tightness test machine which characterized in that: the water tank support comprises a support frame body (1) and a water tank (2) horizontally arranged on the support frame body (1), wherein a pipe frame (3) is arranged in the water tank (2), and the top ends of support columns (101) positioned at four corners of the water tank (2) on the support frame body (1) extend to the upper part of the water tank (2); lifting mechanisms are arranged at two ends of the water tank (2) in the length direction, each lifting mechanism comprises a roller component arranged between the top ends of the two support columns (101) on the same side and a driving element fixed on the outer wall of the water tank (2), and one end of each of at least two traction ropes is connected with the pipe frame (3) while the other end of each of the at least two traction ropes bypasses the roller component and is connected with the driving element; a plurality of telescopic cylinders (4) which are longitudinally arranged along the width direction of the pipe frame (3) are arranged on one side of the pipe frame (3), a first sleeve (5) is connected to a movable rod of each telescopic cylinder (4), a second sleeve (6) which is coaxial and corresponding to the first sleeve (5) is arranged on the other side of the pipe frame (3), an air delivery hole is formed in the inner bottom of the second sleeve (6), and the plurality of second sleeves (6) are communicated with an air inlet pipe; the inner bottoms of the first sleeve (5) and the second sleeve (6) are provided with sealing gaskets, and the sealing gaskets in the second sleeve (6) are provided with through holes penetrating through the air delivery holes.
2. The stainless steel pipe side-by-side type air tightness testing machine according to claim 1, characterized in that: a pipe clamp (7) is arranged on the pipe frame (3) and between the first sleeve (5) and the second sleeve (6); the pipe clamp (7) comprises a first mounting plate (701), a fixed clamping strip (702) and a sliding clamping strip (703) which are arranged on the first mounting plate (701) in parallel, and clamping blocks (704) which are arranged on the sliding clamping strip (703) and the fixed clamping strip (702) at intervals; a guide rail (7031) is connected to the sliding clamping bar (703), and a guide groove (7012) matched with the guide rail (7031) is arranged on the first mounting plate (701); the first mounting plate (701) is provided with a through groove (7011) parallel to the guide groove (7012), and a bolt is arranged in the through groove (7011) in a penetrating manner to fasten an extension plate (7032) of the first mounting plate (701) with the first mounting plate (701).
3. The stainless steel pipe side-by-side type air tightness testing machine according to claim 1, characterized in that: the roller component comprises a rotating shaft (8) and two chain wheels (9) coaxially and fixedly connected with the rotating shaft (8), and two ends of the rotating shaft (8) are fixed on the support (101) through shaft seats; the haulage rope is chain (10) that matches with sprocket (9), and drive element is hydraulic cylinder (11), and the both ends of two chain (10) all connect diaphragm (12), and one of them diaphragm and pipe support (3) activity overlap joint, another diaphragm are connected with hydraulic cylinder (11).
4. The stainless steel pipe side-by-side type airtightness testing machine according to claim 2, wherein: the telescopic cylinder (4) is arranged on the second mounting plate (13), the second sleeve (6) is arranged on the third mounting plate (14), and the first mounting plate (701) or the second mounting plate (13) or the third mounting plate (14) is fixed on the pipe frame (3) through U-shaped bolts.
5. The stainless steel pipe side-by-side type air tightness testing machine according to claim 1, characterized in that: the pipe support (3) is a triangular prism frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021596859.0U CN213364157U (en) | 2020-08-05 | 2020-08-05 | Nonrust steel pipe side by side formula gas tightness testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021596859.0U CN213364157U (en) | 2020-08-05 | 2020-08-05 | Nonrust steel pipe side by side formula gas tightness testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213364157U true CN213364157U (en) | 2021-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021596859.0U Active CN213364157U (en) | 2020-08-05 | 2020-08-05 | Nonrust steel pipe side by side formula gas tightness testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213364157U (en) |
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2020
- 2020-08-05 CN CN202021596859.0U patent/CN213364157U/en active Active
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Address after: 030600 north of No.7 Road, Huitong Industrial Park, Jinzhong Development Zone, Shanxi Province Patentee after: Zhonggang Stainless Steel Pipe Industry Technology Shanxi Co.,Ltd. Address before: 030600 north of No.7 Road, Huitong Industrial Park, Jinzhong Development Zone, Shanxi Province Patentee before: SINOSTEEL STAINLESS STEEL PIPE TECHNOLOGY SHANXI CO.,LTD. |