CN214947312U - Pipe orifice sealing device for heat exchange pipe of heat exchanger - Google Patents
Pipe orifice sealing device for heat exchange pipe of heat exchanger Download PDFInfo
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- CN214947312U CN214947312U CN202021792650.1U CN202021792650U CN214947312U CN 214947312 U CN214947312 U CN 214947312U CN 202021792650 U CN202021792650 U CN 202021792650U CN 214947312 U CN214947312 U CN 214947312U
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- pipe
- exchange tube
- adjusting sleeve
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Abstract
The utility model provides a heat exchanger heat exchange tube mouth of pipe sealing device, include: the quick connector and the fixed connector are sleeved on the heat exchange tube, and one end of the quick connector, which is close to the tube opening of the heat exchange tube, is connected with the fixed connector; one end of the sealing column is inserted into the pipe orifice of the heat exchange pipe, and a step end face is arranged on the sealing column; one end is sealed and other end open-ended adjusting sleeve, adjusting sleeve open end cover locate fixed joint on and with fixed joint threaded connection, sealed post passes adjusting sleeve seals the end just the ladder terminal surface quilt sealed end supports, adjusting sleeve is used for through rotatory propelling movement sealed post gets into inside the heat exchange tube mouth of pipe, seal the heat exchange tube mouth of pipe. The utility model has the advantages that: the sealing device has the advantages that the sealing device does not need pre-tightening force, forms sealing through the extrusion effect of the sealing column and the inner wall of the heat exchange pipe, prevents the sealing column from falling off, is simple and convenient to operate, saves labor, is reliable in sealing, and is suitable for large-range pressure test from low pressure to high pressure.
Description
Technical Field
The utility model relates to a heat exchanger technical field especially relates to a heat exchanger heat exchange tube mouth of pipe sealing device.
Background
The shell-and-tube heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, generally comprises a shell, a heat transfer tube bundle (heat exchange tube), a tube plate, a baffle plate (baffle plate), a tube box and other parts, and a single-tube pressure test needs to be carried out on the heat exchange tube in the manufacturing process of the heat exchanger. When the pressure is high, the manufacturing cost of the process is increased and the quality is difficult to ensure because the batch size of the pressure test pipes is large and the pipe openings are difficult to seal. The sealing of the pipe orifice of the existing heat exchange pipe is mainly forced by a sealing gasket during a pressure test, but the pre-tightening force of the forced sealing is difficult to accurately judge, the pre-tightening force is not enough and leaks when the pressure test is carried out, the sealing gasket is damaged when the pre-tightening force is too large, and the sealing gasket also leaks during the pressure test, so that the sealing gasket forced sealing is difficult to meet the sealing requirement of the pressure test of the heat exchange pipe.
SUMMERY OF THE UTILITY MODEL
In view of this, in order to solve the orificial sealed problem of heat exchange tube among the heat exchange tube pressure test process, the embodiment of the utility model provides a heat exchanger heat exchange tube mouth of pipe sealing device.
An embodiment of the utility model provides a heat exchanger heat exchange tube mouth of pipe sealing device, include:
the quick connector and the fixed connector are sleeved on the heat exchange tube, and one end of the quick connector, which is close to the tube opening of the heat exchange tube, is connected with the fixed connector;
one end of the sealing column is inserted into the pipe orifice of the heat exchange pipe, and a step end face is arranged on the sealing column;
one end is sealed and other end open-ended adjusting sleeve, adjusting sleeve open end cover locate fixed joint on and with fixed joint threaded connection, sealed post passes adjusting sleeve seals the end just the ladder terminal surface quilt sealed end supports, adjusting sleeve is used for through rotatory propelling movement sealed post gets into inside the heat exchange tube mouth of pipe, seal the heat exchange tube mouth of pipe.
Further, the sealing post is a stepped shaft with a large diameter at one end of the inner side and a small diameter at one end of the outer side, the stepped transition position of the sealing post is the stepped end face, a limiting hole is formed in the middle of the sealing end of the adjusting sleeve, and the diameter of the limiting hole is smaller than that of one end of the inner side of the sealing post and larger than that of one end of the outer side of the sealing post.
Furthermore, the quick coupling is close to the inner wall of one end of the heat exchange tube orifice, a conical limiting groove is formed in the inner wall of the other end of the heat exchange tube orifice, the fixed coupling is far away from one end of the heat exchange tube orifice, a conical limiting bulge is formed in the end of the heat exchange tube orifice, and the limiting bulge is limited between the limiting groove and the outer wall of the heat exchange tube.
Furthermore, the sealing column is inserted the outer wall of one end in the heat exchange tube orifice is equipped with a plurality of seal grooves, each be equipped with a sealing washer in the seal groove, the sealing washer quilt the extrusion of heat exchange tube inner wall.
Further, the quick connector is of a pipe hoop structure and comprises two semi-tubular hoops, and the two hoops surround the heat exchange pipe and are detachably connected.
Further, each the inner wall of clamp is equipped with the rubber endotheca, the laminating of rubber endotheca and heat exchange tube outer wall, the clamp will the rubber endotheca compresses tightly.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the utility model discloses a heat exchanger heat exchange tube mouth of pipe sealing device sets up fixed joint in the heat exchange tube outside, through adjusting sleeve and fixed joint threaded connection, and the rotatory sealed heat exchange tube mouth of pipe of sealed post that promotes of adjusting sleeve, do not need the pretightning force, it is sealed to form through the squeezing action of sealed post and heat exchange tube inner wall, and the adjusting sleeve forms the restraint to sealed post, prevent that sealed post from droing, have easy and simple to handle, laborsaving, sealed reliable advantage, the heat exchange tube that is applicable to various models is from the low pressure to highly compressed pressure testing experimental.
Drawings
Fig. 1 is a schematic view of a heat exchange tube orifice sealing device of the present invention.
In the figure: 1-quick joint, 2-fixed joint, 3-sealing column, 4-sealing column, 5-heat exchange tube, 6-clamp, 7-rubber inner sleeve, 8-limiting groove, 9-limiting bulge, 10-step end face, 11-limiting hole, 12-sealing ring and 13-bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides a heat exchanger tube orifice sealing device for a heat exchanger, including a quick coupling 1, a fixed coupling 2, a sealing post 4, and an adjusting sleeve 3.
Specifically, quick-operation joint 1 is located on the heat exchange tube 5 of treating the experiment with detachable mode cover, makes quick-operation joint 1 apart from the heat exchange tube 5 mouth of pipe certain distance, for fixed joint 2's installation reservation position. Here quick-operation joint 1 is the pipe hoop structure, including two semi-tubular clamps 6, two clamp 6 is split type metal clamp, two the both ends of clamp 6 are connected through bolt 13 respectively, two like this clamp 6 encloses the heat exchange tube can dismantle the connection, is convenient for quick-operation joint 1's quick installation and dismantlement.
Further, in order to guarantee quick-operation joint 1 is stably fixed in on the heat exchange tube 5, each the inner wall of clamp 6 sets up rubber endotheca 7, two when clamp 6 folds up rubber endotheca 7 and the laminating of 5 outer walls of heat exchange tube, clamp 6 will rubber endotheca 7 compresses tightly, rubber endotheca 7 direct with the contact of 5 outer walls of heat exchange tube, greatly increased quick-operation joint 1 with the frictional force of heat exchange tube 5 prevents quick-operation joint 1 slides.
The fixed joint 2 is also sleeved on the heat exchange tube 5 and is positioned between the tube opening of the heat exchange tube 5 and the quick joint 1. Quick-operation joint 1 is close to 5 mouth of pipe one ends of heat exchange tube are connected fixed joint 2, here quick-operation joint 1 is close to 5 mouth of pipe one end inner walls of heat exchange tube are equipped with toper spacing groove 8, fixed joint 2 is kept away from 5 mouth of pipe one ends of heat exchange tube are equipped with the spacing arch 9 of toper, spacing arch 9 by spacing in spacing groove 8 with between the outer wall of heat exchange tube 5, like this fixed joint 2 passes through spacing arch 9 with quick-operation joint 1 is connected, just spacing groove 8 will spacing arch 9 compresses tightly, makes fixed joint 2 fixed and unable rotation on horizontal.
The sealing column 4 is used for being inserted into the pipe orifice of the heat exchange pipe 5 to seal the inside of the heat exchange pipe 5. The sealing column 4 is a stepped shaft with one end at the inner side and the other end at the outer side, the inner end of the sealing column 4 is inserted into the pipe orifice of the heat exchange pipe 5, one end at the outer side of the sealing column 4 is left outside the heat exchange pipe 5, and a stepped end face 10 is formed at the stepped transition position in the middle of the sealing column 4.
In addition, the sealing post 4 inserts the outer wall of 5 pipe mouths internal one end of heat exchange tube is equipped with a plurality of seal grooves, each be equipped with a sealing washer 12 in the seal groove, sealing washer 12 is O shape rubber circle, sealing washer 12 cover is located in the seal groove, sealing post 4 is inserting 5 pipe mouths internal back sealing washer 12 quilt the 5 inner wall extrusion of heat exchange tube, through the squeezing action of sealing washer 12 forms good sealed effect.
The adjusting sleeve 3 is arranged on the outer side of the pipe orifice of the heat exchange pipe 5, one end of the adjusting sleeve is sealed, the other end of the adjusting sleeve is opened, the opening end of the adjusting sleeve 3 is sleeved on the fixed joint 2, the inner wall of the adjusting sleeve 3 is connected with the outer wall of the fixed joint 2 through threads, and the adjusting sleeve 3 can move transversely relative to the fixed joint 2 in a rotating mode. Sealing post 4 passes 3 sealing end of adjusting sleeve just ladder terminal surface 10 quilt sealing end supports, and here the middle part of 3 sealing end of adjusting sleeve is equipped with spacing hole 11, spacing hole 11 diameter is less than 4 inboard one end diameters of sealing post, be greater than 4 outside one end diameters of sealing post, 4 outside one end of sealing post can freely pass spacing hole 11, and 4 inboard one end of sealing post can't pass spacing hole 11, consequently ladder terminal surface 10 receives adjusting sleeve's pushing action.
When the pipe orifice sealing device of the heat exchange pipe of the heat exchanger works, the quick connector 1 and the fixed connector 2 are sleeved on the outer wall of the heat exchange pipe 5, and the quick connector 1 is fixed after the limiting groove 8 of the quick connector 1 is connected with the limiting bulge 9 of the fixed connector 2; then, one end of the inner side of the sealing column 4 is inserted into the pipe orifice of the heat exchange pipe 5, the limiting hole 11 of the adjusting sleeve 3 penetrates through one end of the outer side of the sealing column 4, the adjusting sleeve 3 is connected with the fixed joint 2, the adjusting sleeve 3 is rotated, the sealing column 4 is pushed into the pipe orifice of the heat exchange pipe 5 by means of the pushing effect of the sealing end of the adjusting sleeve 3 on the stepped end face 10, and the pipe orifice of the heat exchange pipe 5 is sealed under the action of the sealing column 4 and a sealing ring 12 on the sealing column 4. The sealing device has the advantages of no need of pretightening force, sealing by the extrusion action of the sealing ring 12 and the inner wall of the heat exchange tube 5, restraint of the sealing column by the adjusting sleeve 3, and prevention of falling off of the sealing column 4, simplicity and convenience in operation, labor saving and reliable sealing, and is suitable for pressure test tests of various types of heat exchange tubes 5 from low pressure to high pressure.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A heat exchanger tube orifice sealing device of a heat exchanger is characterized by comprising:
the quick connector and the fixed connector are sleeved on the heat exchange tube, and one end of the quick connector, which is close to the tube opening of the heat exchange tube, is connected with the fixed connector;
one end of the sealing column is inserted into the pipe orifice of the heat exchange pipe, and a step end face is arranged on the sealing column;
one end is sealed and other end open-ended adjusting sleeve, adjusting sleeve open end cover locate fixed joint on and with fixed joint threaded connection, sealed post passes adjusting sleeve seals the end just the ladder terminal surface quilt sealed end supports, adjusting sleeve is used for through rotatory propelling movement sealed post gets into inside the heat exchange tube mouth of pipe, seal the heat exchange tube mouth of pipe.
2. A heat exchanger tube orifice sealing device as claimed in claim 1, wherein: the sealing post is a stepped shaft with a large diameter at one end at the inner side and a small diameter at one end at the outer side, the stepped transition position of the sealing post is a stepped end face, a limiting hole is formed in the middle of the sealing end of the adjusting sleeve, and the diameter of the limiting hole is smaller than that of the end at the inner side of the sealing post and larger than that of the end at the outer side of the sealing post.
3. A heat exchanger tube orifice sealing device as claimed in claim 1, wherein: the quick-operation joint is close to heat exchange tube mouth of pipe one end inner wall is equipped with the toper spacing groove, fixed joint is kept away from heat exchange tube mouth of pipe one end is equipped with the spacing arch of toper, spacing arch by spacing in the spacing groove with between the outer wall of heat exchange tube.
4. A heat exchanger tube orifice sealing device as claimed in claim 1, wherein: the outer wall of the inner end of the heat exchange tube opening, into which the sealing column is inserted, is provided with a plurality of sealing grooves, and each sealing groove is internally provided with a sealing ring which is extruded by the inner wall of the heat exchange tube.
5. A heat exchanger tube orifice sealing device as claimed in claim 1, wherein: the quick-operation joint is the pipe hoop structure, includes two semi-tubular clamps, two the clamp surrounds the heat exchange tube can dismantle the connection.
6. A heat exchanger tube orifice sealing device as claimed in claim 5, wherein: each the inner wall of clamp is equipped with the rubber endotheca, the laminating of rubber endotheca and heat exchange tube outer wall, the clamp compresses tightly the rubber endotheca.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021792650.1U CN214947312U (en) | 2020-08-24 | 2020-08-24 | Pipe orifice sealing device for heat exchange pipe of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021792650.1U CN214947312U (en) | 2020-08-24 | 2020-08-24 | Pipe orifice sealing device for heat exchange pipe of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214947312U true CN214947312U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021792650.1U Active CN214947312U (en) | 2020-08-24 | 2020-08-24 | Pipe orifice sealing device for heat exchange pipe of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214947312U (en) |
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2020
- 2020-08-24 CN CN202021792650.1U patent/CN214947312U/en active Active
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