CN220961005U - Pressure testing assembly for inner and outer double-layer casting pipes - Google Patents
Pressure testing assembly for inner and outer double-layer casting pipes Download PDFInfo
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- CN220961005U CN220961005U CN202322724682.8U CN202322724682U CN220961005U CN 220961005 U CN220961005 U CN 220961005U CN 202322724682 U CN202322724682 U CN 202322724682U CN 220961005 U CN220961005 U CN 220961005U
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- 238000005266 casting Methods 0.000 title claims abstract description 50
- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 50
- 239000000463 material Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 16
- 238000005058 metal casting Methods 0.000 abstract description 7
- 241000238631 Hexapoda Species 0.000 description 10
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
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Abstract
The application relates to the technical field of pipe fitting pressure test, in particular to an inner and outer double-layer casting pipe pressure test assembly, which comprises an air inlet pipe and an air outlet pipe, wherein the air inlet pipe and the air outlet pipe are respectively arranged at two ends of a casting pipe; the air outlet hole is communicated with the outlet of the inner pipe of the casting pipe. The application aims to effectively improve the efficiency of pressure test detection of a metal casting pipe.
Description
Technical Field
The application relates to the technical field of pipe fitting pressure test, in particular to an inner and outer double-layer casting pipe pressure test assembly.
Background
After the metal cast pipe is processed and molded, pressure test detection is often needed to be carried out on the cast pipe so as to eliminate the possibility of worm holes in the cast pipe.
In the related art, for a cast pipe comprising an inner pipe and an outer pipe, a conventional detection mode is to detect the inner pipe and the outer pipe respectively through two sets of pressure test assemblies. When detecting the inner tube: one end of the inner tube is plugged by one set of pressure testing component, then high-pressure gas is introduced to the other end of the inner tube, and after no pressure drop is detected, the outer tube is detected by the other set of pressure testing component.
Therefore, when the double-layer metal casting pipe is detected, two sets of pressure test assemblies are required to be used repeatedly, so that the detection steps are complex and the detection efficiency is low.
Disclosure of utility model
The application provides an inner and outer double-layer casting pipe pressure test assembly, and aims to effectively improve the efficiency of pressure test detection of a metal casting pipe.
The application provides an inner and outer double-layer casting pipe pressure test assembly, which adopts the following technical scheme:
The pressure test assembly comprises an air inlet pipe and an air outlet pipe, wherein the air inlet pipe and the air outlet pipe are respectively arranged at two ends of a casting pipe, the air inlet pipe and the air outlet pipe are respectively provided with an air inlet hole and an air outlet hole, the air inlet holes are communicated with an outer pipe of the casting pipe, a sealing piece is additionally arranged between the air inlet holes and an inlet of the inner pipe of the casting pipe, and the sealing piece is used for preventing air in the air inlet holes from entering the inner pipe from the inlet of the inner pipe; the air outlet hole is communicated with the outlet of the inner pipe of the casting pipe.
By adopting the technical scheme, when the cast tube is subjected to pressure test detection: high-pressure gas is supplied into the outer tube through the gas inlet tube, and if the outer tube has insect holes, the high-pressure gas leaks from the insect holes of the outer tube to the outside of the casting tube to generate pressure drop; because the sealing piece exists, high-pressure gas can not enter the inner tube from the inlet of the inner tube, if the inner tube has insect holes, the high-pressure gas can only enter the inner tube from the insect holes of the inner tube, and then enter the air outlet hole through the outlet of the inner tube to leak out of the casting tube to generate pressure drop.
This kind of setting up mode, through adding on the casting pipe and establishing intake pipe, outlet duct and sealing member, when carrying out the pressure testing to the casting pipe and examining, can once only accomplish the detection of whether there is the worm hole of product, need not two sets of pressure testing subassembly to divide twice to detect outer tube, inner tube respectively, and then can effectively improve the efficiency that metal casting pipe pressure testing detected.
Preferably, the air outlet pipe is arranged at the end part of the outer pipe of the casting pipe in a threaded manner.
Through adopting above-mentioned technical scheme, link to each other outlet duct and outer tube screw thread, when conveniently installing and removing the outlet duct, seal through the screw thread between outlet duct and the outer tube, be favorable to further strengthening the leakproofness between outlet duct and the outer tube.
Preferably, the sealing element is in plug-in fit with the inlet of the inner pipe of the casting pipe, and the inner wall of the sealing element is abutted to the outer wall of the inner pipe of the casting pipe.
By adopting the technical scheme, the sealing element and the inner tube are in a spliced sealing mode, so that gas in the air inlet tube is effectively prevented from entering the inner tube from the inlet of the inner tube.
Preferably, a slot is arranged at one end of the sealing element connected with the inner tube, and the end part of the inner tube of the casting tube is inserted into the slot.
Through adopting above-mentioned technical scheme, utilize the slot to carry out the spacing of certain degree to the inner tube to stability when effectively guaranteeing that the inner tube links to each other with the sealing member.
Preferably, a sealing ring is additionally arranged between one side of the air outlet pipe and the inner pipe of the casting pipe.
Through adopting above-mentioned technical scheme, utilize the sealing washer to further strengthen the leakproofness between outlet duct lateral wall and the inner tube, when high-pressure gas got into the inner tube, effectively ensured that gas can only reveal outside the casting pipe from venthole department, and then be favorable to the accuracy of guarantee pressure testing result.
Preferably, the end part of the air outlet pipe is inwards sunk with a caulking groove in the direction away from the inner pipe, and the sealing ring is embedded in the caulking groove.
Through adopting above-mentioned technical scheme, utilize the caulking groove to effectively ensure the stability of sealing washer installation on the outlet duct.
Preferably, the sealing ring is made of wear-resistant materials.
Through adopting above-mentioned technical scheme, establish the sealing washer into wear-resisting material, effectively increase the friction between sealing washer and the outlet duct, further strengthen the stability that the sealing washer links to each other with the outlet duct, simultaneously, wear-resisting material's sealing washer life is longer.
Preferably, the air inlet pipe and the air outlet pipe are made of stainless steel.
By adopting the technical scheme, the high-pressure impact-resistant device is high in structural strength, more stable and better in effect when bearing high-pressure gas impact.
In summary, the present application includes at least one of the following beneficial technical effects:
1. specifically, when the cast tube is subjected to pressure test and detection: high-pressure gas is supplied into the outer tube through the gas inlet tube, and if the outer tube has insect holes, the high-pressure gas leaks from the insect holes of the outer tube to the outside of the casting tube to generate pressure drop; because the sealing piece exists, high-pressure gas can not enter the inner tube from the inlet of the inner tube, if the inner tube has insect holes, the high-pressure gas can only enter the inner tube from the insect holes of the inner tube, and then enter the air outlet hole through the outlet of the inner tube to leak out of the casting tube to generate pressure drop.
According to the arrangement mode, the air inlet pipe, the air outlet pipe and the sealing piece are additionally arranged on the casting pipe, so that when the casting pipe is subjected to pressure test, whether a product has a worm hole or not can be detected at one time, the outer pipe and the inner pipe are not required to be respectively detected by two sets of pressure test assemblies, and the pressure test detection efficiency of the metal casting pipe can be effectively improved;
2. The air outlet pipe is connected with the outer pipe through threads, so that the air outlet pipe is conveniently detached, and meanwhile, the air outlet pipe and the outer pipe are sealed through the threads, so that the tightness between the air outlet pipe and the outer pipe is further enhanced;
3. The sealing ring is utilized to further strengthen the tightness between the side wall of the air outlet pipe and the inner pipe, when high-pressure air enters the inner pipe, the air is effectively ensured to leak out of the casting pipe from the air outlet hole, and the accuracy of the pressure test detection result is further guaranteed.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application.
Reference numerals: in the figure, 1, an air inlet pipe; 2. an air outlet pipe; 3. an air inlet hole; 4. an air outlet hole; 5. a seal; 6. a slot; 7. a seal ring; 8. and (5) caulking grooves.
Detailed Description
The present application will be described in further detail with reference to fig. 1.
Examples:
The embodiment of the application discloses an internal and external double-layer casting pipe pressure test assembly, which referring to fig. 1, comprises an air inlet pipe 1 and an air outlet pipe 2, wherein the air inlet pipe 1 and the air outlet pipe 2 are respectively arranged at two external ends of a casting pipe, the air inlet pipe 1 and the air outlet pipe 2 are respectively provided with an air inlet hole 3 and an air outlet hole 4, the air inlet hole 3 is communicated with an outer pipe of the casting pipe, a sealing piece 5 is additionally arranged between the air inlet hole 3 and an inlet of an inner pipe of the casting pipe, and the sealing piece 5 is used for preventing gas in the air inlet hole 3 from entering the inner pipe from the inlet of the inner pipe; the air outlet hole 4 is communicated with the outlet of the inner pipe of the casting pipe.
Specifically, when the cast tube is subjected to pressure test and detection: high-pressure gas is supplied into the outer tube through the gas inlet tube 1, and if the outer tube has a worm hole, the high-pressure gas leaks out of the casting tube from the worm hole of the outer tube to generate pressure drop; because of the existence of the sealing piece 5, high-pressure gas cannot enter the inner pipe from the inlet of the inner pipe, if the inner pipe has insect holes, the high-pressure gas can only enter the inner pipe from the insect holes of the inner pipe, and then enter the air outlet 4 through the outlet of the inner pipe to leak out of the casting pipe to generate pressure drop.
The pressure test device has the advantages that in the pressure test detection process, whether the outer pipe is provided with the worm hole or the inner pipe is provided with the worm hole is not needed, and the product can be directly judged to be defective for scrapping as long as pressure drop occurs, and then the product is melted and cast again.
This kind of setting up mode, through adding on the casting pipe and establishing intake pipe 1, outlet duct 2 and sealing member 5, when carrying out the pressure testing to the casting pipe and examining, can once only accomplish the detection of whether there is the worm hole of product, need not two sets of pressure testing subassembly divide twice to detect outer tube, inner tube respectively, and then can effectively improve the efficiency that metal casting pipe pressure testing detected.
In this embodiment, intake pipe 1 and outlet duct 2 all select for use stainless steel material, and structural strength is high, and when bearing high-pressure gas impact, more stable, the effect is better.
In this embodiment, outlet duct 2 screw thread installs the tip at the cast pipe outer tube, links to each other outlet duct 2 and outer tube screw thread, when conveniently installing and removing outlet duct 2, carries out screw thread seal with between outlet duct 2 and the outer tube through the screw thread, is favorable to further strengthening the leakproofness between outlet duct 2 and the outer tube.
The sealing element 5 is inserted into the inlet of the inner tube, and the outer wall of the inner tube is abutted against the inner wall of the sealing element 5. The sealing element 5 and the inner pipe are in a plug-in sealing mode, so that gas in the gas inlet pipe 1 is effectively prevented from entering the inner pipe from the inlet of the inner pipe.
Further, referring to fig. 1, a slot 6 is arranged at one end of the sealing element 5 connected with the inner tube, the inner tube is matched with the slot 6, during specific installation, the end part of the inner tube is inserted into the slot 6, and the inner tube is limited to a certain extent by the slot 6, so that the stability of the inner tube when the inner tube is connected with the sealing element 5 is effectively ensured.
Further, referring to fig. 1, a sealing ring 7 is additionally arranged between one side of the air outlet pipe 2 and the inner pipe of the casting pipe, the sealing performance between the side wall of the air outlet pipe 2 and the inner pipe is further enhanced by using the sealing ring 7, when high-pressure air enters the inner pipe, the air is effectively ensured to leak out of the casting pipe only from the air outlet hole 4, and further the accuracy of the pressure test detection result is guaranteed.
Referring to fig. 1, the end of the air outlet pipe 2 is inwards sunk with a caulking groove 8 in a direction away from the inner pipe, and the sealing ring 7 is embedded in the caulking groove 8, so that the stability of the sealing ring 7 mounted on the air outlet pipe 2 is effectively ensured by using the caulking groove 8.
In this embodiment, the seal ring 7 is made of wear-resistant material. The sealing ring 7 is made of a wear-resistant material, friction between the sealing ring 7 and the air outlet pipe 2 is effectively increased, stability of connection between the sealing ring 7 and the air outlet pipe 2 is further enhanced, and meanwhile, the service life of the sealing ring 7 made of the wear-resistant material is longer.
The embodiment of the application provides an implementation principle of an inner and outer double-layer casting pipe pressure test assembly, which comprises the following steps:
Through adding air inlet pipe 1, outlet duct 2 and sealing member 5 on the casting pipe, when carrying out the pressure testing to the casting pipe and examining, can once only accomplish the detection of whether there is the worm hole in the product, need not two sets of pressure testing subassembly to divide twice to detect outer tube, inner tube respectively, and then can effectively improve the efficiency that metal casting pipe pressure testing detected.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. An inside and outside double-deck cast tube pressure testing subassembly, its characterized in that:
the air inlet pipe (1) and the air outlet pipe (2) are respectively arranged at two ends of a casting pipe, the air inlet pipe (1) and the air outlet pipe (2) are respectively provided with an air inlet hole (3) and an air outlet hole (4), the air inlet hole (3) is communicated with an outer pipe of the casting pipe, a sealing piece (5) is additionally arranged between the air inlet hole (3) and an inlet of the inner pipe of the casting pipe, and the sealing piece (5) is used for preventing air in the air inlet hole (3) from entering the inner pipe from the inlet of the inner pipe; the air outlet hole (4) is communicated with the outlet of the inner pipe of the casting pipe.
2. The inner and outer double layer cast tube pressure test assembly as defined in claim 1 wherein:
The air outlet pipe (2) is arranged at the end part of the outer pipe of the casting pipe in a threaded manner.
3. The inner and outer double layer cast tube pressure test assembly as defined in claim 1 wherein:
the sealing piece (5) is in plug-in fit with the inlet of the inner pipe of the casting pipe, and the inner wall of the sealing piece (5) is abutted to the outer wall of the inner pipe of the casting pipe.
4. A pressure test assembly for an inner and outer double-layer cast tube as defined in claim 3, wherein:
One end of the sealing piece (5) connected with the inner pipe is provided with a slot (6), and the end part of the inner pipe of the casting pipe is inserted into the slot (6).
5. The inner and outer double layer cast tube pressure test assembly as defined in claim 1 wherein:
A sealing ring (7) is additionally arranged between one side of the air outlet pipe (2) and the inner pipe of the casting pipe.
6. The inner and outer double layer cast tube pressure test assembly as defined in claim 5 wherein:
The end part of the air outlet pipe (2) is inwards sunk with an embedded groove (8) in a direction far away from the inner pipe, and the sealing ring (7) is embedded in the embedded groove (8).
7. The inner and outer double layer cast tube pressure test assembly as defined in claim 6 wherein:
The sealing ring (7) is made of wear-resistant materials.
8. The inner and outer double layer cast tube pressure test assembly as defined in claim 1 wherein:
The air inlet pipe (1) and the air outlet pipe (2) are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322724682.8U CN220961005U (en) | 2023-10-10 | 2023-10-10 | Pressure testing assembly for inner and outer double-layer casting pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322724682.8U CN220961005U (en) | 2023-10-10 | 2023-10-10 | Pressure testing assembly for inner and outer double-layer casting pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220961005U true CN220961005U (en) | 2024-05-14 |
Family
ID=90981426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322724682.8U Active CN220961005U (en) | 2023-10-10 | 2023-10-10 | Pressure testing assembly for inner and outer double-layer casting pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220961005U (en) |
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2023
- 2023-10-10 CN CN202322724682.8U patent/CN220961005U/en active Active
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