CN217083466U - Plugging device for non-welding leak stoppage of tube type heat exchanger - Google Patents
Plugging device for non-welding leak stoppage of tube type heat exchanger Download PDFInfo
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- CN217083466U CN217083466U CN202122987446.6U CN202122987446U CN217083466U CN 217083466 U CN217083466 U CN 217083466U CN 202122987446 U CN202122987446 U CN 202122987446U CN 217083466 U CN217083466 U CN 217083466U
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- expansion material
- screw rod
- plugging device
- heat exchanger
- fastening screw
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Abstract
The utility model relates to a chemical production equipment technical field, in particular to chemical pipeline's plugging device. The non-welding leakage-stopping plugging device for the shell and tube heat exchanger comprises an expansion material, a fastening screw rod for fixing the expansion material and a fastening nut matched with the fastening screw rod. The expansion material is cylindrical, the outer diameter of the expansion material is matched with the inner diameter of the leakage pipeline, a screw rod through hole is formed in the middle axis of the expansion material, and a fastening screw rod penetrates through the screw rod through hole to be matched with a fastening nut. The material hardness of the expansion material is less than that of the fastening screw material. The material hardness of the expansion material is less than the hardness of the leaking conduit material. The utility model discloses a technical scheme leak the shutoff of pipeline and need not fire, provide a more convenient maintenance mode for the regional maintenance of chemical explosion-proof.
Description
Technical Field
The utility model relates to a chemical production equipment technical field, in particular to chemical pipeline's plugging device.
Background
In the chemical field, the tube type heat exchanger is widely applied in the chemical production field, mainly plays a role in cooling and heat exchange, and when heat exchange is carried out, a fluid enters the heat exchange tube from a connecting tube of the end socket, flows in the heat exchange tube and flows out from an outlet tube at the other end of the end socket, which is called a tube pass; the other fluid enters from the connecting pipe of the shell and flows out from the other connecting pipe on the shell, which is called as a shell pass, and the fluid to be cooled flows in the tube pass and exchanges heat with the cold medium in the shell pass of the heat exchange tube to realize cooling and heat dissipation. However, in the using process, the heat exchange tubes are generally made of carbon steel and are corroded by heat exchange media, the number of the heat exchange tubes is large, and the production quality is uneven, so that the cooling media and the cooled media are mixed due to damage of the heat exchange tubes, the cooling media and the cooled media are mutually polluted, and even accidents such as fire hazard and poisoning can occur when combustible toxic substances enter the cooling media. The standby heat exchanger needs to be switched to be maintained in time. At present, a common treatment method for the tubular heat exchange leakage is to weld and seal two ends of a leaked pipe.
Such maintenance is heavy in chemical plants, increasing the labor capacity of maintenance workers; on the other hand, the fire operation is limited more in a chemical plant, the fire operation is forbidden in some dangerous areas, the maintenance can be carried out during the stop, and the time period and the difficulty of the maintenance are increased.
Therefore, it is necessary to design a simple and fast maintenance method without fire.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a quick plugging device of non-welded when leaking to shell and tube heat exchanger. In order to achieve the above purpose, the utility model adopts the following technical scheme:
the non-welding leakage-stopping plugging device for the shell and tube heat exchanger comprises an expansion material, a fastening screw rod for fixing the expansion material and a fastening nut matched with the fastening screw rod.
The expansion material is cylindrical, the outer diameter of the expansion material is matched with the inner diameter of the leakage pipeline, the matching clearance is 0.1mm-0.2mm, a screw rod through hole is formed along the central axis of the expansion material, and a fastening screw rod penetrates through the screw rod through hole to be matched with a fastening nut.
Furthermore, the end part of the expansion material is provided with a flared part, and the end head of the fastening screw is matched with the flared part so as to achieve the purpose of fixing the plugging device on the sealed pipeline.
Further, the material hardness of the expansion material is less than that of the fastening screw material.
Further, the material hardness of the expansion material is less than the hardness of the leakage conduit material.
Furthermore, the flaring portion is a conical flaring portion, and the end of the fastening screw is provided with a conical surface matched with the conical flaring portion.
Further, the slope of the inner slope of the tapered flared portion is 30 degrees, and the slope of the tapered surface of the end of the fastening screw is 45 degrees.
Furthermore, the plugging device can also be suitable for the pressurized plugging of equipment with regular round holes and round holes as leak points.
Further, the utility model provides a metal connecting piece, including expanding material, and be used for fixing expanding material's fastening screw, with fastening screw matched with fastening nut. The expansion material is cylindrical, a screw rod through hole is formed in the middle axis of the expansion material, and a fastening screw rod penetrates through the screw rod through hole to be matched with the fastening nut.
The utility model discloses a technical scheme have following beneficial effect: the plugging device is suitable for non-welding plugging of the tubular heat exchanger, can quickly plug a leaking pipeline under pressure, does not need to discharge media in a tube pass in the construction process, greatly shortens the maintenance time, and provides better guarantee for production and operation. Use the technical scheme of the utility model the shutoff that leaks the pipeline need not fire, provides a more convenient maintenance mode for the regional maintenance of explosion-proof in chemical industry.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
1. An intumescent material; 2. fastening a screw rod; 3. a leakage conduit; 4. tube sheets of the tube type heat exchanger; 5. fastening a nut;
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
Example 1:
the non-welding leakage-stopping plugging device for the shell and tube heat exchanger comprises an expansion material 1, a fastening screw rod 2 used for fixing the expansion material 1, and a fastening nut 5 matched with the fastening screw rod 2.
The expansion material 1 is cylindrical, the outer diameter of the expansion material is matched with the inner diameter of the leakage pipeline 3, a screw rod through hole is formed in the middle of the expansion material along the central axis of the leakage pipeline, a flared part is formed in the end part of the expansion material 1, and the end head of a fastening screw rod 2 is matched with the flared part to achieve the purposes of sealing the pipeline and fixing the expansion material 1.
The flaring portion is a cone-center flaring portion, a movable seam is formed in the side wall of the cone-shaped flaring portion, and a conical surface matched with the cone-shaped flaring portion is arranged at the end of the fastening screw rod 2. The slope of the inner slope of the conical flared part is 30 degrees, and the slope of the conical surface of the end of the fastening screw 2 is 45 degrees.
The plugging device is a prefabricated part made of materials which are the same as or similar to those of the shell-and-tube heat exchanger. The shell and tube heat exchanger is 45# steel, the fastening screw 2 is 45# steel, the expansion material is 20# steel with lower hardness than the material of the fastening screw
In another embodiment of the present application, the shell and tube heat exchanger is made of stainless steel 4Cr13, the fastening screw 2 is made of stainless steel 4Cr13, and the expansion material 1 is made of 304 with hardness smaller than that of the fastening screw.
In yet another embodiment of the present application, the shell and tube heat exchanger is made of brass, the fastening screw 2 is made of brass, and the expansion material 1 is made of pure copper with a hardness smaller than that of the fastening screw.
Example 2:
the utility model provides a metal connecting piece, including expanding material 1, and be used for fixing expanding material 1's fastening screw 2, with fastening screw 2 matched with fastening nut 5. The expansion material 1 is cylindrical, a screw through hole is formed along the central axis of the expansion material, and a fastening screw 2 penetrates through the screw through hole to be matched with the fastening nut 5.
To sum up, the utility model discloses a plugging device suitable for pipeline, hole leaking stoppage sets up it in leaking the pipeline, and the plugging device who will prefabricate inserts the mouth of pipe, and swivel nut is confined, and because of inflation material is less than pipeline material and screw rod material hardness, under the effect is confined to screw rod and bolt, inflation material plays the sealed effect of inflation. The other purpose of the device can also be used as a metal connecting piece, and the connecting effect is good.
Claims (6)
1. The utility model provides a plugging device of non-welding leaking stoppage of shell and tube heat exchanger which characterized in that: the material hardness of the expansion material is less than that of the fastening screw rod material.
2. The non-welding leakage-stopping plugging device of the shell and tube heat exchanger according to claim 1, characterized in that: the expansion material is cylindrical, the outer diameter of the expansion material is matched with the inner diameter of the leakage pipeline, a screw rod through hole is formed in the middle axis of the expansion material, and a fastening screw rod penetrates through the screw rod through hole to be matched with a fastening nut.
3. The non-welding leakage-stopping plugging device of the shell and tube heat exchanger according to claim 2, wherein: the end part of the expansion material is provided with a flared part, and the end head of the fastening screw is matched with the flared part.
4. A non-welding leakage-stopping plugging device for a tubular heat exchanger according to claim 3, wherein: the flaring part is a conical flaring part, and the end of the fastening screw rod is provided with a conical surface matched with the conical flaring part.
5. The non-welding leakage-stopping plugging device of the shell and tube heat exchanger according to claim 4, wherein: the slope of the inner inclined plane of the conical flaring part is 30 degrees, and the slope of the conical surface of the end head of the fastening screw is 45 degrees.
6. The non-welding leakage-stopping plugging device of the shell and tube heat exchanger according to claim 1, characterized in that: the material hardness of the expansion material is less than the hardness of the leaking conduit material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122987446.6U CN217083466U (en) | 2021-12-01 | 2021-12-01 | Plugging device for non-welding leak stoppage of tube type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122987446.6U CN217083466U (en) | 2021-12-01 | 2021-12-01 | Plugging device for non-welding leak stoppage of tube type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217083466U true CN217083466U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122987446.6U Active CN217083466U (en) | 2021-12-01 | 2021-12-01 | Plugging device for non-welding leak stoppage of tube type heat exchanger |
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| CN (1) | CN217083466U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115282618A (en) * | 2022-08-11 | 2022-11-04 | 济源市万洋冶炼(集团)有限公司 | Reboiler for ionic liquid high-temperature analysis |
-
2021
- 2021-12-01 CN CN202122987446.6U patent/CN217083466U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115282618A (en) * | 2022-08-11 | 2022-11-04 | 济源市万洋冶炼(集团)有限公司 | Reboiler for ionic liquid high-temperature analysis |
| CN115282618B (en) * | 2022-08-11 | 2024-03-22 | 济源市万洋冶炼(集团)有限公司 | Reboiler for ion liquid high-temperature analysis |
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