CN217484059U - Insulating joint pressure test device - Google Patents
Insulating joint pressure test device Download PDFInfo
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- CN217484059U CN217484059U CN202221421270.6U CN202221421270U CN217484059U CN 217484059 U CN217484059 U CN 217484059U CN 202221421270 U CN202221421270 U CN 202221421270U CN 217484059 U CN217484059 U CN 217484059U
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- insulating joint
- pressure
- insulating
- pressure test
- joint body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses an insulating joint pressure test device, include the press and install a pneumatic cylinder and the insulating joint body in the press, the pressure disk is installed to the bottom of a pneumatic cylinder, the insulating joint body is located the bottom of pressure disk, this internal interior account formula sealing device who highly is higher than the insulating joint body of installing of insulating joint. The utility model discloses this equipment can not cause secondary pressure to the insulating pad that insulating connects, can not increase insulating joint's sealing coefficient temporarily, utilizes the pressurized inflation of interior expanding sealing device, carries out inside seal to insulating joint, carries out pressure test under insulating joint's natural state, and is accurate effective.
Description
Technical Field
The utility model relates to a gas pipeline technical field especially relates to an insulating joint pressure test device.
Background
The insulating joint is an important part installed on a gas pipeline, and the insulating joint bears internal pressure for a long time, and the pressure-resistant sealing performance of the insulating joint becomes an important technical prerequisite.
At present, most of means for detecting the pressure of the insulating joint are used for plugging and compressing ports of connecting pipes at two ends to seal the connecting pipes, then a pressure test is carried out, the method directly applies the pressure to the two ends of the insulating joint, the pressure enables an insulating pad in the middle of the insulating joint to be compressed for the second time, the sealing coefficient of the insulating joint is temporarily increased, the insulating pad can bounce and recover after the pressure is removed after the test is finished, the result obtained by the detection method is incorrect, and the true sealing performance of the insulating joint cannot be detected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving following shortcoming among the prior art, the sealing coefficient that has increased insulating joint temporarily in the process of the test leads to unable true sealing performance who detects out insulating joint, and the insulating joint pressure test device who proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an insulating joint pressure test device comprises a press machine, a first hydraulic cylinder and an insulating joint body, wherein the first hydraulic cylinder and the insulating joint body are installed in the press machine;
the internal account type sealing device comprises an internal support, the upper end of the internal support is connected with an upper base through a pressure-expandable upper expansion rubber ring, and the lower end of the internal support is connected with a lower base through a pressure-expandable lower expansion rubber ring.
Preferably, the upper expansion rubber ring is fixedly connected with the pressure plate through a plurality of connecting lugs.
Preferably, still install track and sliding connection on the track and be located the portable chassis of interior account formula sealing device bottom in the press, install a plurality of rail wheels between portable chassis and the track, be equipped with the recess of restriction rail wheel direction on the track, No. two pneumatic cylinders are still installed to one side of portable chassis.
Preferably, a threaded hole with two free ends is formed in the center of the lower base, and a hollow screw for fixing the lower base on the movable chassis is installed in the threaded hole.
Preferably, an O-shaped ring is further arranged between the lower base and the movable chassis.
Preferably, a plurality of support plates are further mounted between the presses of the movable chassis.
Preferably, the outer side wall of the insulating joint body is provided with an air leakage hole, an air inlet channel is arranged in the movable chassis, one end of the air inlet channel is communicated with the hollow screw, and the other end of the air inlet channel is an air inlet.
Preferably, the inner support comprises two disc rings and a plurality of support rods.
Compared with the prior art, the utility model discloses there is following beneficial effect at least:
this equipment can not cause secondary pressure to the insulating pad that insulating joint connects, can not increase insulating joint's sealing coefficient temporarily, utilizes interior expanding sealing device's pressurized inflation, carries out inside seal to insulating joint, carries out compression test under insulating joint's natural state, and is accurate effective.
Drawings
Fig. 1 is a schematic front structural view of an insulating joint pressure testing apparatus provided by the present invention;
fig. 2 is a schematic view of a partial cross-sectional structure of an insulation joint pressure testing apparatus provided by the present invention;
fig. 3 is a schematic side sectional structural view of an insulating joint pressure testing apparatus provided by the present invention;
fig. 4 is an exploded view of the internal expanding seal.
In the figure: the device comprises a press machine 1, a first hydraulic cylinder 2, a second hydraulic cylinder 3, an internal expansion type sealing device 4, an insulating joint body 5, a track 6, a movable chassis 7, a supporting plate 8, a track wheel 9, an air inlet channel 10, an air leakage hole 11, a connecting lug 12, an upper expansion rubber ring 13, an inner support 14, a lower base 15, an O-shaped ring 16, an upper base 17, a hollow screw 18 and a lower expansion rubber ring 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the present invention, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, but not for limiting the range of the present invention, and the relative relationship changes or adjustments without substantial technical changes should be regarded as the scope of the present invention.
Referring to fig. 1-4, an insulation joint pressure test device comprises a press machine 1, a first hydraulic cylinder 2 and an insulation joint body 5 which are arranged in the press machine 1, wherein a pressure plate is arranged at the bottom end of the first hydraulic cylinder 2, the insulation joint body 5 is arranged at the bottom end of the pressure plate, an inner account type sealing device 4 which is higher than the insulation joint body 5 is arranged in the insulation joint body 5, the inner account type sealing device 4 comprises an inner support 14, the upper end of the inner support 14 is connected with an upper base 17 through a pressure expandable upper expansion rubber ring 13, the upper expansion rubber ring 13 is sleeved on the upper base 17, the lower end of the inner support 14 is connected with a lower base 15 through a pressure expandable lower expansion rubber ring 19, the lower expansion rubber ring 19 is sleeved on the lower base 15, the inner support 14 is composed of two disc rings and a plurality of support rods, the circular cross section surrounded by the plurality of support rods is smaller than the disc rings, the upper and lower circular disc rings are respectively attached to the upper base 17 and the lower base 19, when the first hydraulic cylinder 2 in the press machine 1 drives the pressure plate to press downwards, since the height of the internal account type sealing device 4 is higher than that of the insulation joint body 5, the pressure acts on the upper base 17, the upper expansion rubber ring 13 close to the top and the lower expansion rubber ring 19 close to the bottom of the internal account type sealing device 4 deform and expand outwards under the action of pressure and are tightly attached to the inner side wall of the insulating joint body 5 until a completely sealed space is formed inside the insulating joint body 5, thereby not causing secondary pressure to the insulating pad of the insulating joint body 5, not temporarily increasing the sealing coefficient of the insulating joint body 5, and utilizing the pressure expansion of the internal account type sealing device 4, the insulating joint is internally sealed, and a pressure test is carried out in a natural state of the insulating joint body 5, so that the method is accurate and effective.
The upper expansion rubber ring 13 is fixedly connected with the pressure plate through a plurality of connecting lugs 12, one side of each connecting lug 12 is fixedly connected with the pressure plate, the other side of each connecting lug is fixedly connected with a connecting plate, the connecting plates are arranged in an L shape and fixedly connected to the upper expansion rubber ring 13, and when the pressure plate is driven by the first hydraulic cylinder 2 to move upwards, the upper expansion rubber ring 13 is also driven to move upwards; the internal structure of the internal account type sealing device 4 is exposed, the disassembly is convenient, and the connecting lug 12 can be purchased in the market, belongs to the prior art and is not described in detail.
Still install track 6 and sliding connection in the press 1 on track 6 and be located the portable chassis 7 of interior account formula sealing device 4 bottom, install a plurality of rail wheels 9 between portable chassis 7 and the track 6, be equipped with the recess of restriction rail wheel 9 direction on the track 6, pneumatic cylinder 3 No. two is still installed to one side of portable chassis 7, track 6 of taking the recess, when press 1 is exerted pressure, portable chassis removes 7 to pneumatic cylinder 2 below No. one, in the recess of track 6 is gone into to rail wheel 9 this moment, portable chassis 7 position reduces.
The center of the lower base 15 is provided with a two-way threaded hole which is a free end, a hollow screw 18 which is used for fixing the lower base 15 on the movable chassis 7 is arranged in the threaded hole, and the hollow screw 18 is used for fixing the lower base 15 on the movable chassis 7, so that the stability of the internal account type sealing device 4 is improved.
An O-shaped ring 16 is further arranged between the lower base 15 and the movable base plate 7, the O-shaped ring 16 can play a role in buffering, and deformation and damage caused by mutual extrusion between the lower base 15 and the movable base plate 7 under the action of pressure are avoided.
Still install a plurality of backup pads 8 between the press 1 of portable chassis 7, backup pad 8 bears pressure, and protection rail wheel 9 makes it not atress, avoids damaging.
The air leakage hole 11 has been seted up on the lateral wall of the insulation joint body 5, be equipped with inlet channel 10 in the portable chassis 7, inlet channel's one end and hollow screw 18 intercommunication, the other end is the air inlet, and compressed air gets into the air inlet, gets into the inside confined space of insulation joint body 5, if insulation joint body 5 is inside to receive rated pressure to lead to sealed nonconforming, and the air comes out from air leakage hole 11, judges that the product is unqualified.
In conclusion, when a product is tested, the internal account type sealing device 4 is placed in the insulating joint body 5, then the movable chassis 7 is moved to the position below the pressure plate by using the second hydraulic cylinder 3, equipment is started to apply pressure, detergent liquid capable of generating bubbles is coated on the air leakage hole 11, then compressed air enters the air inlet and enters a sealing space inside the insulating joint body 5, if the inside of the insulating joint body 5 is unqualified in sealing due to rated pressure, air comes out of the air leakage hole 11 and generates bubbles, the product is judged to be unqualified, and the product is judged to be qualified if no bubbles are generated.
In the present application, the terms "mounted," "connected," and "secured" are to be construed broadly unless otherwise specifically indicated and limited.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. An insulating joint pressure test device comprises a press machine (1), a first hydraulic cylinder (2) and an insulating joint body (5), wherein the first hydraulic cylinder (2) and the insulating joint body (5) are installed in the press machine (1), a pressure plate is installed at the bottom end of the first hydraulic cylinder (2), and the insulating joint body (5) is located at the bottom end of the pressure plate, and is characterized in that an internal account type sealing device (4) higher than the insulating joint body (5) is installed in the insulating joint body (5);
the internal account type sealing device (4) comprises an internal support (14), the upper end of the internal support (14) is connected with an upper base (17) through a pressure-expandable upper expansion rubber ring (13), and the lower end of the internal support (14) is connected with a lower base (15) through a pressure-expandable lower expansion rubber ring (19).
2. An insulation joint pressure testing device according to claim 1, characterized in that the upper expansion rubber ring (13) is fixedly connected with the pressure plate through a plurality of connecting lugs (12).
3. The insulating joint pressure test device according to claim 1, wherein a rail (6) and a movable chassis (7) which is connected to the rail (6) in a sliding manner and is located at the bottom end of the internal account type sealing device (4) are further installed in the press machine (1), a plurality of rail wheels (9) are installed between the movable chassis (7) and the rail (6), a groove for limiting the direction of the rail wheels (9) is formed in the rail (6), and a second hydraulic cylinder (3) is further installed on one side of the movable chassis (7).
4. The insulating joint pressure test device according to claim 3, characterized in that a threaded hole with two free ends is formed in the center of the lower base (15), and a hollow screw (18) for fixing the lower base (15) on the movable chassis (7) is installed in the threaded hole.
5. An insulated joint pressure test device according to claim 4, characterized in that an O-ring (16) is arranged between the lower base (15) and the movable bottom plate (7).
6. An insulated joint pressure test device according to claim 4, characterized in that a plurality of support plates (8) are further mounted between the presses (1) of the movable chassis (7).
7. The insulation joint pressure test device according to claim 5, wherein the outer side wall of the insulation joint body (5) is provided with an air leakage hole (11), an air inlet channel (10) is arranged in the movable chassis (7), one end of the air inlet channel is communicated with the hollow screw (18), and the other end of the air inlet channel is an air inlet.
8. An insulated joint pressure test unit according to claim 5, characterized in that the inner carrier (14) comprises two disc rings and a plurality of support rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221421270.6U CN217484059U (en) | 2022-06-09 | 2022-06-09 | Insulating joint pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221421270.6U CN217484059U (en) | 2022-06-09 | 2022-06-09 | Insulating joint pressure test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217484059U true CN217484059U (en) | 2022-09-23 |
Family
ID=83312503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221421270.6U Active CN217484059U (en) | 2022-06-09 | 2022-06-09 | Insulating joint pressure test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217484059U (en) |
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2022
- 2022-06-09 CN CN202221421270.6U patent/CN217484059U/en active Active
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