CN212779745U - Pipe sealing performance testing machine - Google Patents
Pipe sealing performance testing machine Download PDFInfo
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- CN212779745U CN212779745U CN202021548774.5U CN202021548774U CN212779745U CN 212779745 U CN212779745 U CN 212779745U CN 202021548774 U CN202021548774 U CN 202021548774U CN 212779745 U CN212779745 U CN 212779745U
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Abstract
The utility model relates to a pipe sealing performance testing machine, which comprises a pressure chamber and a sealing structure, wherein the pressure chamber is provided with an inlet, an outlet, a connecting port a and a connecting port b which are communicated with the inner cavity of the pressure chamber, part of pipes to be tested are arranged outside the pressure chamber, and the opening ends of the pipes are hermetically connected with the connecting port a through the sealing structure; the closed end of part of the pipe to be measured is inserted into the pressure chamber through a connecting port b, and the open end of the pipe to be measured is hermetically connected with the connecting port b through a sealing structure; the outlet is provided with a switch valve. The beneficial effects are that: simple structure need not open heavy pressure chamber, can directly follow the externally mounted tubular product, when carrying out the leakproofness test, when guaranteeing to reach test pressure, the operation is used conveniently, can not produce the problem of weeping.
Description
Technical Field
The utility model relates to a leakproofness detects technical field, concretely relates to tubular product leakproofness testing machine.
Background
In the actual use process of the currently used pipe sealing test instrument, a pipe internal pressure test and an external pressure test are respectively two independent and different test instruments. During the internal pressure test, the end part is connected with a pressure test pump, the pressure is increased to a certain pressure, the pressure is maintained for a certain time, whether the pressure leaks or not is observed, if the pressure does not leak, the pressure is increased to a specified pressure, and the condition that the pressure does not leak or deform within the duration time is ensured to be qualified is met. And during the external pressure test, the two external pressure samples are sealed and then placed into the instrument, and the pressure is gradually increased to the specified pressure after the sealing, so that the condition that the leakage and the deformation do not occur within the duration time is ensured, and the condition is qualified.
Utility model application No. 2017200485942's utility model integral type sounding pipe leakproofness testing machine, this utility model adopts the pressure chamber that has the upper cover that can open, and pressure chamber a lateral wall is connected external pressure test pipe, and pressure chamber a lateral wall is connected interior pressure test pipe, and this utility model makes the improvement to the prior art, but, above-mentioned prior art device has following defect when using:
1. when the external pressure test tube is installed, a heavy upper cover needs to be opened, so that the operation is inconvenient;
2. the upper cover and the pressure chamber have larger interfaces, the sealing is difficult, a test machine can generate certain deformation under the action of pressure, and the upper cover sealing interfaces are easy to damage;
3. under high pressure, the leakage of the upper cover of the pressure chamber can cause great potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a tubular product leakproofness testing machine is provided to overcome not enough among the above-mentioned prior art.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a pipe sealing tester comprises a pressure chamber and a sealing structure, wherein the pressure chamber is provided with an inlet, an outlet, a connecting port a and a connecting port b which are communicated with an inner cavity of the pressure chamber, part of pipes to be tested are arranged outside the pressure chamber, and the opening ends of the pipes are in sealing connection with the connecting port a through the sealing structure; the closed end of part of the pipe to be measured is inserted into the pressure chamber through a connecting port b, and the open end of the pipe to be measured is hermetically connected with the connecting port b through a sealing structure; the outlet is provided with a switch valve.
The utility model has the advantages that:
the connector b on the pressure chamber is used for testing the external pressure air tightness of the pipe, the connector a on the pressure chamber is used for testing the internal pressure air tightness of the pipe, when the external pressure air tightness of the pipe is tested, the pipe needs to be immersed in pressure liquid in the pressure chamber, when the internal pressure air tightness of the pipe is tested, the pipe is arranged outside the pressure chamber, after the test pipe is connected, the pressure liquid enters the pressure chamber through the inlet, the outlet is opened to discharge air, the switch valve on the pressure liquid can be closed when the pressure liquid flows out from the outlet, the test is started, the structure is simple, the heavy pressure chamber does not need to be opened, the pipe can be directly installed from the outside, when the tightness test is carried out, when the test pressure is ensured to be reached, the operation.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the connection port a is located on the outer peripheral surface of the pressure chamber, and the connection port b is located on the top of the pressure chamber.
Adopt above-mentioned further beneficial effect to do: through reasonable position arrangement, the volume of the pressure chamber can be reduced.
Further, the connection port a is inclined downward.
Adopt above-mentioned further beneficial effect to do: and the pipe connected with the connecting port a is ensured to have no air when the pressure fluid is injected into the pressure chamber.
Furthermore, the number of the connecting ports a arranged on the pressure chamber is 1-10, and the number of the connecting ports b arranged on the pressure chamber is 1-10.
Adopt above-mentioned further beneficial effect to do: the internal and external pressure detection can be simultaneously carried out on a plurality of pipes.
Furthermore, the connecting port a comprises a through hole a arranged on the peripheral surface of the pressure chamber and a sleeve surrounding the through hole a and having one end connected with the pressure chamber, the sealing structure comprises a ring plate and a pressing sleeve, and the ring plate is sleeved on the opening end of the pipe to be tested and is in seamless connection with the pipe to be tested; the diameter of the ring plate is larger than the inner diameter of the through hole a, the diameter of the ring plate is smaller than the inner diameter of the sleeve, the opening end of the pipe to be tested, which is provided with the ring plate, is inserted in the sleeve, and the compaction sleeve is detachably connected with the sleeve so as to connect or separate the pipe to be tested with the connecting port a;
the connecting port b comprises a cylindrical concave cavity formed by inwards sinking the top wall of the pressure chamber and a through hole b arranged on the bottom of the concave cavity, the inner diameter of the through hole b is larger than the outer diameter of the pipe to be tested, the diameter of the ring plate is larger than that of the through hole b, the inner diameter of the concave cavity is larger than that of the ring plate, and the opening end of the pipe to be tested, provided with the ring plate, is positioned in the concave cavity; the compaction sleeve is detachably connected with the concave cavity so as to connect or separate the pipe to be tested with the connecting port b.
Adopt above-mentioned further beneficial effect to do: convenient operation, difficult oil leak can adapt to different tubular product diameters.
Furthermore, the compacting sleeve is detachably connected with the sleeve through threads, and the compacting sleeve is detachably connected with the concave cavity through threads;
or the like, or, alternatively,
the compacting sleeve is detachably connected with the sleeve through a buckle, and the compacting sleeve is detachably connected with the cavity through a buckle.
Adopt above-mentioned further beneficial effect to do: easy dismounting, stability is good.
Further, the sealing structure further comprises a sealing ring, and the sealing ring is arranged between the compression sleeve and the ring plate.
Furthermore, the ring plate is provided with a ring groove for accommodating the sealing ring.
The beneficial effects of the two steps are as follows: leakage can be reduced, and sealing performance is improved.
Furthermore, the pressure chamber is made of a circular steel structure.
Adopt above-mentioned further beneficial effect to do: can bear stronger positive pressure and negative pressure, and is not easy to deform.
Further, the inlet is located at the bottom of the outer circumferential surface of the pressure chamber, and the outlet is located at the top of the pressure chamber.
Adopt above-mentioned further beneficial effect to do: the air in the pressure chamber can be completely discharged.
Drawings
Fig. 1 is a schematic structural view of the pipe sealing performance testing machine of the present invention;
fig. 2 is a partial structure diagram of the pipe sealing performance testing machine of the present invention viewed from above;
fig. 3 is a partially enlarged view of fig. 1.
In the drawings, the components represented by the respective reference numerals are listed below:
1. pressure chamber, 110, inlet, 120, outlet, 130, connecting ports a, 131, through holes a, 132, sleeve pipes, 140, connecting ports b, 141, concave cavities, 142, through holes b, 2, sealing structures, 210, annular plates, 220, compression sleeves, 3 and pipes.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1 to 3, a pipe sealing tester comprises a pressure chamber 1 and a sealing structure 2, wherein the pressure chamber 1 is provided with an inlet 110 communicated with an inner cavity thereof, the pressure chamber 1 is provided with an outlet 120 communicated with the inner cavity thereof, the pressure chamber 1 is provided with a connecting port a130 communicated with the inner cavity thereof, the pressure chamber 1 is provided with a connecting port b140 communicated with the inner cavity thereof, a part of a pipe 3 to be tested is arranged outside the pressure chamber 1, and the opening end thereof is hermetically connected with the connecting port a130 through the sealing structure 2, so that the internal pressure airtightness of the pipe 3 can be tested; the closed end of part of the pipe 3 to be tested is inserted into the pressure chamber 1 through the connecting port b140, and the open end of the pipe is hermetically connected with the connecting port b140 through the sealing structure 2, so that the external pressure airtightness of the pipe can be tested; the outlet 120 is provided with a switch valve.
Example 2
As shown in fig. 1 to fig. 3, this embodiment is a further improvement on embodiment 1, and is specifically as follows:
the connection port a130 is located on the outer circumferential surface of the pressure chamber 1, and the connection port b140 is located on the top of the pressure chamber 1.
Example 3
As shown in fig. 1 to fig. 3, this embodiment is a further improvement on embodiment 2, and is specifically as follows:
the connection port a130 is inclined downward to ensure that no air is present in the pipe 3 connected to the connection port a130 when the pressure chamber 1 is filled with the hydraulic fluid.
Example 4
As shown in fig. 1 to 3, this embodiment is a further improvement on any one of embodiments 1 to 3, and specifically includes the following steps:
the number of the connection ports a130 provided on the pressure chamber 1 is 1 to 10, while in the drawing shown in the present embodiment, the number of the connection ports a130 is 6, and the number of the connection ports b140 provided on the pressure chamber 1 is 1 to 10, and in the drawing shown in the present embodiment, the number of the connection ports b140 is 6.
Example 5
As shown in fig. 1 to 3, this embodiment is a further improvement on any one of embodiments 1 to 4, and specifically includes the following steps:
the connection port a130 includes a through-hole a131 opened on the outer circumferential surface of the pressure chamber 1, and a sleeve 132 surrounding the through-hole a131 and having one end connected to the pressure chamber 1;
the sealing structure 2 comprises a ring plate 210 and a compaction sleeve 220, the ring plate 210 is sleeved on the opening end of the pipe 3 to be tested, and the ring plate 210 is in seamless connection with the pipe 3 to be tested;
the diameter of the ring plate 210 is larger than the inner diameter of the through hole a131, the diameter of the ring plate 210 is smaller than the inner diameter of the sleeve 132, the opening end of the pipe 3 to be tested provided with the ring plate 210 is inserted into the sleeve 132, the compaction sleeve 220 is detachably connected with the sleeve 132 so as to connect or separate the pipe 3 to be tested with the connecting port a130, and after the compaction sleeve 220 is connected with the sleeve 132 in place, the ring plate 210 on the pipe 3 to be tested is attached to the outer peripheral surface of the pressure chamber 1 to realize sealing;
the connection port b140 comprises a cylindrical cavity 141 formed by the top wall of the pressure chamber 1 sinking inwards, and a through hole b142 formed in the bottom of the cavity 141, wherein the inner diameter of the through hole b142 is larger than the outer diameter of the pipe 3 to be measured, the diameter of the ring plate 210 is larger than the inner diameter of the through hole b142, the inner diameter of the cavity 141 is larger than the diameter of the ring plate 210, and the opening end of the pipe 3 to be measured, provided with the ring plate 210, is positioned in the cavity 141; the compaction sleeve 220 is detachably connected with the concave cavity 141 so that the pipe 3 to be tested is connected with or separated from the connecting port b140, and after the compaction sleeve 220 is connected with the sleeve 132 in place, the annular plate 210 on the pipe 3 to be tested, which is connected with the connecting port b140, is tightly attached to the cavity bottom of the concave cavity 141 to realize sealing;
convenient operation, difficult oil leak, can adapt to different tubular product diameters moreover.
Example 6
As shown in fig. 1 to fig. 3, this embodiment is a further improvement on embodiment 5, and is specifically as follows:
the compaction sleeve 220 is detachably connected with the sleeve 132 through threads, and the compaction sleeve 220 is detachably connected with the cavity 141 through threads;
or the like, or, alternatively,
the press-fit sleeve 220 is detachably connected with the sleeve 132 through a buckle, and the press-fit sleeve 220 is detachably connected with the cavity 141 through a buckle.
Example 7
As shown in fig. 1 to fig. 3, this embodiment is a further improvement on embodiment 6, and is specifically as follows:
the sealing structure 2 further comprises a sealing ring which is arranged between the pressing sleeve 220 and the ring plate 210; the ring plate 210 is provided with a ring groove for accommodating a sealing ring, so that leakage can be reduced, and the sealing performance can be improved.
Example 8
As shown in fig. 1 to 3, the present embodiment is a further improvement on the basis of embodiments 1 to 7, and specifically includes the following steps:
the pressure chamber 1 adopts a circular steel structure, can bear stronger positive pressure and negative pressure, and is not easy to deform.
Example 9
As shown in fig. 1 to 3, the present embodiment is a further improvement on the embodiments 1 to 8, and specifically includes the following steps:
the inlet 110 is located at the bottom of the outer circumferential surface of the pressure chamber 1, and the outlet 120 is located at the top of the pressure chamber 1.
The connection port b140 on the pressure chamber 1 is used for testing the external pressure airtightness of the pipe 3, the connection port a130 on the pressure chamber 1 is used for testing the internal pressure airtightness of the pipe 3, and when the external pressure airtightness of the pipe 3 is tested, the pipe 3 needs to be immersed in the hydraulic fluid in the pressure chamber 1; when testing the pressure gas tightness in tubular product 3, tubular product 3 need be in outside pressure chamber 1, after connect test tubular product, pressure liquid passes through entry 110 and gets into in pressure chamber 1, open export 120 exhaust air simultaneously, can close its overhead valve when treating that pressure liquid flows out from export 120, begin the experiment, if test tubular product quantity is less than 12, tubular product connection interface is stopped up to available structure that suits with the interface, when the tubular product leakproofness is experimental, need not open pressure chamber 1, direct from the external mounting, high convenience and fastness, and this structure sealing performance is good, structure safe and reliable. From above-mentioned content difficult discovery, this tubular product leakproofness testing machine structure is exquisite, and the operation is used conveniently, shortens by a wide margin experimental consuming time, avoids moreover because of the danger that the sudden seepage of hydraulic liquid caused the experimenter.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. The pipe sealing testing machine is characterized by comprising a pressure chamber (1) and a sealing structure (2), wherein the pressure chamber (1) is provided with an inlet (110), an outlet (120), a connecting port a (130) and a connecting port b (140) which are communicated with the inner cavity of the pressure chamber, part of a pipe (3) to be tested is arranged outside the pressure chamber (1), and the opening end of the pipe is in sealing connection with the connecting port a (130) through the sealing structure (2); the closed end of part of the pipe (3) to be measured is inserted into the pressure chamber (1) through a connecting port b (140), and the open end of the pipe is hermetically connected with the connecting port b (140) through a sealing structure (2); and a switch valve is arranged on the outlet (120).
2. The tube tightness testing machine according to claim 1, wherein the connection port a (130) is located on the outer circumferential surface of the pressure chamber (1), and the connection port b (140) is located on the top of the pressure chamber (1).
3. The pipe tightness testing machine according to claim 2, wherein the connection port a (130) is inclined downward.
4. The pipe tightness testing machine according to claim 1, wherein the pressure chamber (1) is provided with 1-10 connecting ports a (130), and the pressure chamber (1) is provided with 1-10 connecting ports b (140).
5. The pipe tightness testing machine according to any one of claims 1 to 4, wherein the connection port a (130) comprises a through hole a (131) formed on the outer circumferential surface of the pressure chamber (1), and a sleeve (132) surrounding the through hole a (131) and having one end connected with the pressure chamber (1), the sealing structure (2) comprises a ring plate (210) and a press-fit sleeve (220), the ring plate (210) is sleeved on the opening end of the pipe (3) to be tested and is connected with the pipe (3) to be tested in a seamless manner; the diameter of the ring plate (210) is larger than the inner diameter of the through hole a (131), the diameter of the ring plate (210) is smaller than the inner diameter of the sleeve (132), the opening end of the pipe (3) to be tested, which is provided with the ring plate (210), is inserted into the sleeve (132), and the compression sleeve (220) is detachably connected with the sleeve (132) so that the pipe (3) to be tested is connected with or separated from the connecting port a (130);
the connecting port b (140) comprises a cylindrical concave cavity (141) formed by inwards recessing the top wall of the pressure chamber (1), and a through hole b (142) formed in the bottom of the cavity of the concave cavity (141), the inner diameter of the through hole b (142) is larger than the outer diameter of the pipe (3) to be tested, the diameter of the ring plate (210) is larger than the inner diameter of the through hole b (142), the inner diameter of the concave cavity (141) is larger than the diameter of the ring plate (210), and the opening end of the pipe (3) to be tested, provided with the ring plate (210), is positioned in the concave cavity (141); the compaction sleeve (220) is detachably connected with the concave cavity (141) so that the pipe (3) to be tested is connected with or separated from the connecting port b (140).
6. The pipe tightness testing machine according to claim 5, characterized in that the compression sleeve (220) is detachably connected with the sleeve (132) through threads, and the compression sleeve (220) is detachably connected with the cavity (141) through threads;
or the like, or, alternatively,
the compression sleeve (220) is detachably connected with the sleeve (132) through a buckle, and the compression sleeve (220) is detachably connected with the cavity (141) through a buckle.
7. The tube tightness testing machine of claim 6, characterized in that the sealing structure (2) further comprises a sealing ring disposed between the packing sleeve (220) and the ring plate (210).
8. The pipe tightness testing machine of claim 7, wherein the ring plate (210) is provided with a ring groove for accommodating a sealing ring.
9. The pipe tightness testing machine according to claim 1, characterized in that the pressure chamber (1) is made of circular steel.
10. The tube tightness testing machine according to claim 1, characterized in that the inlet (110) is located at the bottom of the outer peripheral surface of the pressure chamber (1), and the outlet (120) is located at the top of the pressure chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021548774.5U CN212779745U (en) | 2020-07-30 | 2020-07-30 | Pipe sealing performance testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021548774.5U CN212779745U (en) | 2020-07-30 | 2020-07-30 | Pipe sealing performance testing machine |
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| Publication Number | Publication Date |
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| CN212779745U true CN212779745U (en) | 2021-03-23 |
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| CN202021548774.5U Active CN212779745U (en) | 2020-07-30 | 2020-07-30 | Pipe sealing performance testing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022267075A1 (en) * | 2021-06-25 | 2022-12-29 | 临海伟星新型建材有限公司 | Pipe pressure resistance testing device and testing method thereof |
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2020
- 2020-07-30 CN CN202021548774.5U patent/CN212779745U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022267075A1 (en) * | 2021-06-25 | 2022-12-29 | 临海伟星新型建材有限公司 | Pipe pressure resistance testing device and testing method thereof |
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