CN211292306U - Flange gland type pressure test mould for floating head heat exchanger - Google Patents
Flange gland type pressure test mould for floating head heat exchanger Download PDFInfo
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- CN211292306U CN211292306U CN201922300925.9U CN201922300925U CN211292306U CN 211292306 U CN211292306 U CN 211292306U CN 201922300925 U CN201922300925 U CN 201922300925U CN 211292306 U CN211292306 U CN 211292306U
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Abstract
The utility model discloses a pressure test mould of floating head heat exchanger flange gland formula, including first flange, first flange circumference equipartition first bolt hole, first flange passes through the flange joint of bolt and heat exchanger tip, first flange sets up the ring channel towards heat exchanger one side, set up first sealing washer in the ring channel, first flange opposite side connects first barrel, first barrel keeps away from first flange one end inboard clearance and sets up the second barrel, the anchor ring of second barrel inner sets up the inclined plane, the inclined plane is towards the second barrel outside, the inclined plane outside sets up the second sealing washer, the second barrel outer end sets up the second flange, second flange circumference equipartition second bolt hole, first barrel keeps away from first flange one end and sets up the third flange, third flange circumference equipartition third bolt hole; the utility model discloses the pressure testing mould is not only sealed effectual difficult emergence is revealed, can satisfy the change of unsteady tube sheet extension length again, exchange the commonality good, and structural strength requires lowly, and the labour saving and convenience of operation moreover.
Description
Technical Field
The utility model belongs to the technical field of heat exchanger pressure testing equipment, in particular to floating head heat exchanger flange gland formula pressure testing mould.
Background
The floating head heat exchanger is not only important cold exchange process equipment in the petrochemical industry, but also widely applied in other fields. The hydrostatic test is used as an essential inspection process of the floating head heat exchanger in manufacturing, maintenance and overhaul, the pressure test effect reflects the product quality to a certain extent, and the pressure test clamping fixture of the heat exchanger is used as a necessary tool in the pressure test process of a heat exchanger tube bundle, so that the performance of the pressure test clamping fixture directly influences the pressure test efficiency, quality, cost and labor intensity.
The problem that prior art is used for pressure testing mould of floating head heat exchanger to exist has: the size is large, the weight is large, and the installation is time-consuming and labor-consuming; the universality is poor, the pressure testing mould is mostly made of steel independent parts, the connection size of the pressure testing mould is limited by the axial distance between a shell flange of the heat exchanger and a tube plate, and the axial distance between the shell flange of the heat exchanger and the tube plate is not a standard size, so that the pressure testing mould has various sizes and specifications, and the universality is poor; the sealing effect is poor, and the traditional pressure testing mould seals the end part of the floating tube plate in the middle of the outer circle of the floating tube plate, so that the outer circle surface part of the floating tube plate is damaged by the moving medium. Therefore, the flange gland type pressure test mould for the floating head heat exchanger is efficient, universal and reliable in sealing.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a floating head heat exchanger flange gland formula pressure testing mould, not only sealed effectual difficult emergence is revealed, can satisfy the change of unsteady tube sheet extension length again, exchange the commonality good, structural strength requires lowly, and the labour saving and convenient operation moreover.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a first flange of floating head heat exchanger gland formula pressure testing mould, including first flange, the first bolt hole of first flange circumference equipartition, first flange passes through the flange joint of bolt and heat exchanger tip, first flange sets up the ring channel towards heat exchanger side, set up first sealing washer in the ring channel, first flange opposite side connects first barrel, first barrel is kept away from the inboard clearance of first flange one end and is set up the second barrel, the interior anchor ring of second barrel sets up the inclined plane, the inclined plane is towards the second barrel outside, the inclined plane outside sets up the second sealing washer, second barrel outer end sets up the second flange, second flange circumference equipartition second bolt hole, first flange one end is kept away from to first barrel sets up the third flange, third flange circumference equipartition third bolt hole, second bolt hole and third bolt hole one-to-one, second flange and third flange pass through bolted connection.
Preferably, the outer side of one end of the first cylinder is connected with the inner side face of the first flange, and the first cylinder is connected with the first flange in a welding mode.
Preferably, the inclination angle of the inclined surface is 15 to 30 degrees.
Preferably, the outer diameter of the second flange is the same as the outer diameter of the third flange, and the inner diameter of the second bolt hole is the same as the inner diameter of the third bolt hole.
Preferably, the center lines of the second cylinder and the first cylinder are located on the same straight line, and the width of a gap between the second cylinder and the first cylinder is one fourth of the outer diameter of the second sealing ring.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model has simpler structure and easy manufacture; the second sealing ring is arranged on the outer sealing end face of the floating tube plate through the inclined face, and under the ordinary condition, the defects of corrosion of a long-period operation medium of the heat exchanger to the excircle of the floating tube plate, external damage during maintenance and the like are more, so that the structure at the position is selected as sealing, the operation medium is not in contact with the excircle of the floating tube plate, and the sealing effect is better; convenient to use, high-efficient: the second cylinder can adapt to floating tube plates with different extension lengths, and when the floating tube plate is used, a gasket does not need to be disassembled and assembled to adjust the extension length of the core floating tube plate, so that one working procedure is reduced; the utility model discloses requirement to structural strength is lower, needn't set up thicker tubular construction, and weight is lighter, material saving, reduce cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic structural view of the first sealing ring of the present invention.
Fig. 3 is an enlarged schematic structural view of the second seal ring of the present invention.
In the figure: 1. the floating tube plate comprises a first flange, 2, a first bolt hole, 3, an annular groove, 4, a first sealing ring, 5, a first cylinder, 6, a second cylinder, 7, an inclined surface, 8, a second sealing ring, 9, a second flange, 10, a second bolt hole, 11, a third flange, 12, a third bolt hole, 13 and a floating tube plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, this embodiment provides a flange press-cover type pressure testing mold for a floating head heat exchanger, including a first flange 1, first bolt holes 2 are uniformly distributed on the circumference of the first flange 1, the first flange 1 is connected with a flange at the end of the heat exchanger through bolts, an annular groove 3 is arranged on one side surface of the first flange 1 facing the heat exchanger, a first sealing ring 4 is arranged in the annular groove 3, the other side of the first flange 1 is connected with a first cylinder 5, a second cylinder 6 is arranged on the inner side of one end of the first cylinder 5 far from the first flange 1 in a gap manner, an annular surface 7 is arranged on the inner end of the second cylinder 6, the inclined surface 7 faces the outer side of the second cylinder 6, a second sealing ring 8 is arranged on the outer side of the inclined surface 7, a second flange 9 is arranged on the outer end of the second cylinder 6, second bolt holes 10 are uniformly distributed on the circumference of the second flange 9, a third flange 11 is arranged on one, the second bolt holes 10 correspond to the third bolt holes 12 one by one, and the second flange 9 and the third flange 11 are connected through bolts.
In this embodiment, the outer side of one end of the first cylinder 5 is connected to the inner side of the first flange 1, and the first cylinder 5 is connected to the first flange 1 by welding.
In this embodiment, the inclined surface 7 has an inclination angle of 15 to 30 degrees.
In this embodiment, the outer diameter of the second flange 9 is the same as the outer diameter of the third flange 11, and the inner diameter of the second bolt hole 10 is the same as the inner diameter of the third bolt hole 12.
In this embodiment, the center lines of the second cylinder 6 and the first cylinder 5 are located on the same straight line, and the width of the gap between the second cylinder 6 and the first cylinder 5 is one fourth of the outer diameter of the second seal ring 8.
When the utility model is implemented, the first flange 1 is fixedly connected with the end flange of the heat exchanger by bolts, and the first sealing ring 4 seals the gap between the first flange 1 and the end flange of the heat exchanger; a floating tube plate 13 of the heat exchanger extends into the first cylinder 5, the second cylinder 6 is supported outside the floating tube plate 13, the second cylinder 6 and an inclined surface 7 thereof tightly press a second sealing ring 8 on the outer edge of the side surface of the floating tube plate 13, and the second sealing ring 8 seals a gap between the second cylinder 6 and the floating tube plate 13; bolts penetrate through the second bolt holes 10 and the third bolt holes 12 to be connected with the second flange 9 and the third flange 11, and nuts are matched with the bolts to fix the second flange 9 and the second cylinder 6, so that the second cylinder 6 presses the second sealing ring 8; because the second cylinder 6 has a certain length, under the condition that the floating tube plate 13 extends out of the end flange of the heat exchanger for different lengths, the second cylinder 6 extends into the first cylinder 5 for different lengths, thereby realizing the matching sealing of the second cylinder 6, the second sealing ring 8 and the floating tube plate 13; and finally, carrying out pressure test on the heat exchange tube on the floating tube plate 13.
The utility model discloses change in the past that the pressure testing mould compulsory sealed easily reveal, heavy, the operation degree of difficulty is big, experience requires high, the poor history of commonality, the substitute is that sealing performance is good, simple structure, be convenient for processing and use, the better novel flange gland formula pressure testing mould of commonality, increase substantially the maintenance quality, reduce workman's intensity of labour and cost by a wide margin.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a floating head heat exchanger flange gland formula pressure testing mould, includes first flange, its characterized in that: the first bolt holes are uniformly distributed on the circumference of the first flange, the first flange is connected with a flange at the end part of the heat exchanger through bolts, an annular groove is formed in the first flange towards one side surface of the heat exchanger, a first sealing ring is arranged in the annular groove, the other side of the first flange is connected with a first barrel, a second barrel is arranged at the inner side gap of one end, away from the first flange, of the first barrel, an inclined surface is arranged at the inner end annular surface of the second barrel, the inclined surface faces the outer side of the second barrel, a second sealing ring is arranged at the outer side of the inclined surface, a second flange is arranged at the outer end of the second barrel, second bolt holes are uniformly distributed on the circumference of the second flange, a third flange is arranged at one end, away from the first flange, third bolt holes are uniformly distributed on the circumference of the.
2. The floating head heat exchanger flange gland type pressure test clamping fixture of claim 1, wherein: the outer side of one end of the first cylinder is connected with the inner side face of the first flange, and the first cylinder is connected with the first flange in a welding mode.
3. The floating head heat exchanger flange gland type pressure test clamping fixture of claim 1, wherein: the inclined angle of the inclined plane is 15-30 degrees.
4. The floating head heat exchanger flange gland type pressure test clamping fixture of claim 1, wherein: the outer diameter of the second flange is the same as that of the third flange, and the inner diameter of the second bolt hole is the same as that of the third bolt hole.
5. The floating head heat exchanger flange gland type pressure test clamping fixture of claim 1, wherein: the center lines of the second cylinder and the first cylinder are located on the same straight line, and the width of a gap between the second cylinder and the first cylinder is one fourth of the outer diameter of the second sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922300925.9U CN211292306U (en) | 2019-12-20 | 2019-12-20 | Flange gland type pressure test mould for floating head heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922300925.9U CN211292306U (en) | 2019-12-20 | 2019-12-20 | Flange gland type pressure test mould for floating head heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211292306U true CN211292306U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922300925.9U Expired - Fee Related CN211292306U (en) | 2019-12-20 | 2019-12-20 | Flange gland type pressure test mould for floating head heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211292306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790950A (en) * | 2021-09-17 | 2021-12-14 | 长春市镨策试验仪器有限责任公司 | Pressure-bearing device for simulating high-energy-storage rock mass excavation unloading test and sealing method |
-
2019
- 2019-12-20 CN CN201922300925.9U patent/CN211292306U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790950A (en) * | 2021-09-17 | 2021-12-14 | 长春市镨策试验仪器有限责任公司 | Pressure-bearing device for simulating high-energy-storage rock mass excavation unloading test and sealing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 Termination date: 20211220 |