CN214309418U - Pressure testing device of floating head heat exchanger - Google Patents
Pressure testing device of floating head heat exchanger Download PDFInfo
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- CN214309418U CN214309418U CN202022976392.9U CN202022976392U CN214309418U CN 214309418 U CN214309418 U CN 214309418U CN 202022976392 U CN202022976392 U CN 202022976392U CN 214309418 U CN214309418 U CN 214309418U
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- floating head
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Abstract
The application provides a pressure testing device of floating head heat exchanger belongs to the heat exchanger and maintains technical field. The device that this application embodiment provided, through set up the second barrel in the sleeve unit, and at the first end overcoat dress sealing snap ring of second barrel, can shutoff this first casing flange of floating head heat exchanger, avoid follow-up pressure testing in-process, fluid leaks from the gap between the first end of second barrel and the first casing flange, through set up a section of thick bamboo unit in the inner chamber of sleeve unit, the first end of the first barrel in the section of thick bamboo unit can offset with the first tube sheet of floating head heat exchanger, thereby play fixed and sealed effect to first tube sheet, avoid follow-up pressure testing in-process, fluid leaks from the gap between the first end of first barrel and the first tube sheet, guarantee to seal tightly, thereby be favorable to the pressure testing work of heat exchanger to go on smoothly.
Description
Technical Field
The application relates to the technical field of heat exchanger maintenance, in particular to a pressure testing device of a floating head heat exchanger.
Background
The heat exchanger is a chemical device widely applied in petrochemical production. In the process of oil refining and chemical device maintenance, the heat exchanger core-pulling pressure test work is very important.
For a floating head heat exchanger, a pressure testing device commonly used at present generally consists of a plugging piece and a filler, and the pressure testing device is fixed on the outer side of a floating first tube plate of the heat exchanger to seal the heat exchanger, so that subsequent pressure testing work is performed.
However, in the oil refining chemical industry production workshop, the packing is used for sealing, and when pressure is applied to the heat exchanger, the high pressure can cause the sealing of the packing to be poor, so that the pressure test working progress of the heat exchanger is influenced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a pressure testing device of a floating head heat exchanger, which can ensure tight sealing, thereby being beneficial to smooth pressure testing of the heat exchanger. The technical scheme is as follows:
the utility model provides a pressure testing device of floating head heat exchanger, the device includes: a cylinder sealing unit and a sleeve unit;
the cylinder sealing unit is connected in the inner cavity of the sleeve unit, and the first end of the cylinder sealing unit is positioned on the inner side of the first end of the sleeve unit;
this seal a section of thick bamboo unit includes: the first end of the first cylinder is used for abutting against a first tube plate of the floating head heat exchanger;
the sleeve unit includes: the first shell flange that should connect the cardboard and be used for connecting this sealed snap ring and this floating head heat exchanger offsets with the first shell flange of floating head heat exchanger.
In one possible design, the cartridge unit further includes: the first flange is sleeved at the second end of the first cylinder;
the sleeve unit further includes: the second flange is sleeved at the second end of the second cylinder;
the first flange and the second flange are connected through a plurality of adjusting bolts.
In one possible design, the cartridge unit further includes: and the first O-shaped sealing ring is connected to the end face of the first end of the first cylinder.
In one possible design, the cartridge unit further comprises: at least one second O-ring seal;
the end face of the sealing snap ring is provided with at least one annular groove, and the annular groove is used for accommodating the second O-shaped sealing ring.
In one possible design, the connector comprises a clamping plate and a connecting plate which are vertically connected;
the clamping plate is used for clamping and stopping the end face, far away from the first shell flange, of the sealing clamping ring, and the connecting plate is used for connecting the first shell flange.
In a possible design, the edge of the end face of the clamping plate is provided with a strip-shaped bulge, and the strip-shaped bulge is abutted to the sealing clamping ring.
In one possible embodiment, the connecting plate is provided with a first through hole, and the first through hole on the connecting plate is connected with a flange hole on the first housing flange through a connecting bolt.
In one possible design, a blind hole is provided on the end face of the connecting plate, an internal thread is provided in the blind hole, and the blind hole on the connecting plate is connected with the flange hole on the first housing flange through a screw.
In one possible design, the apparatus further includes: hoisting the assembly;
this hoist and mount unit includes: the lifting ring is fixed on the outer wall of the second cylinder through the two fixing plates.
In one possible design, the apparatus further includes: a flange snap ring;
the flange clamping ring is provided with a plurality of second through holes which are matched with second shell flanges of various floating head heat exchangers, and the second shell flanges and the first shell flanges are respectively positioned at two opposite ends of the floating head heat exchangers;
the flange snap ring is used for clamping and stopping the second tube plate of the floating head heat exchanger by connecting the second shell flange.
The device that this application embodiment provided, through set up the second barrel in the sleeve unit, and at the first end overcoat dress sealing snap ring of second barrel, can shutoff this first casing flange of floating head heat exchanger, avoid follow-up pressure testing in-process, fluid leaks from the gap between the first end of second barrel and the first casing flange, through set up a section of thick bamboo unit in the inner chamber of sleeve unit, the first end of the first barrel in the section of thick bamboo unit can offset with the first tube sheet of floating head heat exchanger, thereby play fixed and sealed effect to first tube sheet, avoid follow-up pressure testing in-process, fluid leaks from the gap between the first end of first barrel and the first tube sheet, guarantee to seal tightly, thereby be favorable to the pressure testing work of heat exchanger to go on smoothly.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pressure testing device of a floating head heat exchanger provided in an embodiment of the present application;
fig. 2 is a schematic cross-sectional structure view of a pressure testing device of a floating head heat exchanger according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram illustrating the use of a pressure testing device of a floating head heat exchanger according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a cartridge sealing unit 1 of a pressure testing device of a floating-head heat exchanger provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a sleeve unit 2 of a pressure testing device of a floating-head heat exchanger provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of a flange snap ring 4 of a pressure testing device of a floating head heat exchanger according to an embodiment of the present application.
The reference numerals for the various parts in the drawings are illustrated below:
1-a cylinder sealing unit;
11-a first cylinder;
12-a first flange;
13-a first O-ring seal;
2-a sleeve unit;
21-a second cylinder;
22-sealing snap ring;
23-a connector;
231-a clamping plate;
2311-raised strips;
232-connecting plate;
2321 — first via;
24-a second flange;
241-adjusting the bolt;
25-a second O-ring seal;
3-hoisting the unit;
31-hoisting rings;
32-a fixed plate;
4-a flange snap ring;
41-a second through hole;
01-a first tubesheet;
02-a first housing flange;
03-a second housing flange;
04-second tubesheet.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Fig. 1 is a schematic structural diagram of a pressure testing device of a floating head heat exchanger provided in an embodiment of the present application, and fig. 2 is a schematic sectional structural diagram of a pressure testing device of a floating head heat exchanger provided in an embodiment of the present application, please refer to fig. 1 and fig. 2, the device includes: a cylinder sealing unit 1 and a sleeve unit 2; the cylinder sealing unit 1 is connected in the inner cavity of the sleeve unit 2, and the first end of the cylinder sealing unit 1 is positioned at the inner side of the first end of the sleeve unit 2; the cartridge unit 1 includes: a first cylinder 11, wherein a first end of the first cylinder 11 is used for abutting against a first tube plate 01 of the floating head heat exchanger; the cartridge unit 2 includes: the first end of the second cylinder 21 is fixed on the outer wall of the first end of the second cylinder 21, the sealing snap ring 22 is used for abutting against the first shell flange 02 of the floating head heat exchanger, and the connecting piece 23 is used for connecting the sealing snap ring 22 and the first shell flange 02 of the floating head heat exchanger.
The working principle of the device is described in detail below:
when the pressure test is performed on the floating head heat exchanger, the tube box at the end of the floating head heat exchanger needs to be detached, so that the first shell flange 02 at the first end of the floating head heat exchanger and the first tube plate 01 inside the first shell flange 02 are exposed, and the tube sealing unit 1 and the sleeve unit 2 in the device are installed at the first end of the floating head heat exchanger, specifically, because the first tube 11 in the tube sealing unit 1 is connected to the inner cavity of the second tube 21 in the sleeve unit 2 and the first tube 11 can move, after the second tube 21 is connected to the first shell flange 02, the first tube 11 and the first shell flange 02 are relatively fixed, so that the first tube 11 can play a role in fixing the first tube plate 01. Meanwhile, the first cylinder 11 and the first tube plate 01 are connected with each other, the second cylinder 21 and the first shell flange 02 are connected with each other, and therefore a sealing effect can be achieved, and high-pressure fluid is prevented from leaking in the pressure testing process.
The device provided by the embodiment of the application, through set up the second barrel 21 in the sleeve unit 2, and at the first end overcoat dress sealing snap ring 22 of the second barrel 21, can shutoff the first casing flange 02 of this floating head heat exchanger, avoid follow-up pressure testing in-process, fluid leaks from the gap between the first end of second barrel 21 and the first casing flange 02, through set up a section of thick bamboo unit 1 in the inner chamber of sleeve unit 2, the first end of the first barrel 11 in a section of thick bamboo unit 1 can offset with the first tube sheet 01 of floating head heat exchanger, thereby play fixed and sealed effect to first tube sheet 01, avoid follow-up pressure testing in-process, fluid leaks from the gap between the first end of first barrel 11 and the first tube sheet 01, guarantee to seal tightly, thereby be favorable to the pressure testing work of heat exchanger to go on smoothly.
In the device, a structure of a sealing snap ring 22 and at least two connecting pieces 23 is adopted, each device is provided with a plurality of sets of connecting pieces 23 with different specifications, and when the device is operated, a corresponding set of connecting pieces 23 can be selected according to the diameter of a first shell flange 02 of the floating head heat exchanger, the diameter of a flange hole and the distance between the flange holes, so that the device can be suitable for various floating head heat exchangers. The tool with different diameters or different pressures only needs to replace the connecting piece 23, so that the pressure test cost is reduced, and the universality of the tool is improved. Thereby the device has the advantages of convenient operation, good universality, low cost, good sealing performance and the like.
The following details the structure and the working principle of each part of the device:
fig. 4 is a schematic structural diagram of a cartridge sealing unit 1 of a pressure testing device of a floating-head heat exchanger provided in an embodiment of the present application, please refer to fig. 4, and in a possible design, the cartridge sealing unit 1 further includes: a first flange 12, wherein the first flange 12 is sleeved at the second end of the first cylinder 11; the cartridge unit 2 further includes: a second flange 24, wherein the second flange 24 is sleeved at the second end of the second cylinder 21; the first flange 12 and the second flange 24 are connected by a plurality of adjusting bolts 241.
The first flange 12 and the first cylinder 11 may be welded, the second flange 24 and the second cylinder 21 may be welded, and the second flange 24 and the sealing cylinder may be welded.
The sealing unit 1 and the sleeve unit 2 can be movably connected together through the detachable connection between the first flange 12 and the second flange 24, and the position of the first tube plate 01 is adjusted through adjusting the relative position between the first flange 12 and the second flange 24, so that different pressure test requirements of different floating head heat exchangers are met.
In one possible design, the cartridge unit 1 further comprises: the first O-ring 13 is connected to the end surface of the first end of the first cylinder 11, so as to perform a sealing function and prevent the pressure-testing fluid from leaking, and specifically, the first O-ring 13 may be made of rubber, which is not limited in this embodiment.
Fig. 5 is a schematic structural diagram of a sleeve unit 2 of a pressure testing device of a floating-head heat exchanger provided in an embodiment of the present application, please refer to fig. 5, and in a possible design, the sleeve unit 2 further includes: at least one second O-ring seal 25; the end face of the sealing snap ring 22 is provided with at least one annular groove, and the annular groove is used for accommodating the second O-shaped sealing ring 25, so that a sealing effect is achieved, and leakage of a pressure test fluid is prevented. The number of the second O-rings 25 may be set according to the structure of the first housing flange 02, but the present embodiment is not limited thereto, and may be, for example, 1 to 4.
In one possible design, the connector 23 includes a vertically connected arrangement of a catch plate 231 and a connecting plate 232; the clamping plate 231 is used for being clamped on the end face, away from the first housing flange 02, of the sealing clamping ring 22, and the connecting plate 232 is used for being connected with the first housing flange 02.
In the above structure, the clamping plate 231 and the connecting plate 232 are connected to form an L shape for connecting the first housing flange 02 through the connecting plate 232, so that the clamping plate 231 can stop the sealing snap ring 22, and the sleeve unit 2 is fixed on the first housing flange 02.
The number of the connecting members 23 can be set according to the requirement, for example, the number can be 2-36, and the embodiment is not limited thereto.
In a possible design, the edge of the end face of the snap plate 231 is provided with a strip-shaped protrusion 231, and the strip-shaped protrusion 231 abuts against the seal snap ring 22.
The strip-shaped protrusion 231 is used for contacting the sealing snap ring 22, so that the sealing performance of the clamping plate 231 and the sealing snap ring 22 on the first shell flange 02 is improved, and insufficient contact between the end surface of the clamping plate 231 and the sealing snap ring 22 due to the fact that the included angle between the end surface of the clamping plate 231 and the connecting plate 232 is too large is avoided.
In the above-mentioned connecting member 23, there are many possible designs of the connecting plate 232, two of which are described below as examples.
The first method comprises the following steps: in one possible design, the connecting plate 232 is provided with a first through hole 2321, and the first through hole 2321 of the connecting plate 232 is connected to the flange hole of the first housing flange 02 through a connecting bolt.
The connection between the connection plate 232 and the first housing flange 02 is achieved by passing the connection bolt through the first through hole 2321 and the flange hole on the first housing flange 02, and fixing the head of the connection bolt and the nut at the outer side of the connection plate 232 and the first housing flange 02, respectively.
And the second method comprises the following steps: in one possible embodiment, a blind hole is provided in the end face of the connecting plate 232, an internal thread is provided in the blind hole, and the blind hole in the connecting plate 232 is connected to the flange hole in the first housing flange 02 by a screw.
The first end of the screw penetrates through the flange hole in the first housing flange 02 and is continuously screwed into the blind hole, the screw is fixedly connected with the connecting plate 232, and the nut is screwed to abut against the first housing flange 02 at the second end of the screw, so that the screw is fixedly connected with the first housing flange 02.
In one possible design, the apparatus further includes: hoist unit 3, this hoist unit 3 includes: a lifting ring 31 and two fixing plates 32, wherein the lifting ring 31 is fixed on the outer wall of the second cylinder 21 through the two fixing plates 32.
Through this hoist and mount unit 3, can hoist the device, the site worker of being convenient for installs the device.
Fig. 3 is a schematic diagram of a pressure testing device of a floating head heat exchanger according to an embodiment of the present disclosure, fig. 6 is a schematic diagram of a structure of a flange snap ring 4 of the pressure testing device of the floating head heat exchanger according to an embodiment of the present disclosure, please refer to fig. 3 and fig. 6, and in a possible design, the device further includes: a flange snap ring 4; the flange snap ring 4 is provided with a plurality of second through holes 41, the plurality of second through holes 41 are matched with second shell flanges 03 of various floating head heat exchangers, and the second shell flanges 03 and the first shell flange 02 are respectively positioned at two opposite ends of the floating head heat exchanger; the flange snap ring 4 is used for clamping the second tube plate 04 of the floating-head heat exchanger by connecting the second shell flange 03.
Based on the structure, the device can block the floating head heat exchanger from two opposite ends of the floating head heat exchanger. Wherein, a plurality of second through-holes 41 on the flange snap ring 4 and the second shell flange 03 looks adaptation of multiple floating head heat exchangers make the device can be applicable to multiple different floating head heat exchangers.
All the above optional technical solutions may be combined arbitrarily to form optional embodiments of the present application, and are not described herein again.
The device provided by the embodiment of the application, through set up the second barrel 21 in the sleeve unit 2, and at the first end overcoat dress sealing snap ring 22 of the second barrel 21, can shutoff the first casing flange 02 of this floating head heat exchanger, avoid follow-up pressure testing in-process, fluid leaks from the gap between the first end of second barrel 21 and the first casing flange 02, through set up a section of thick bamboo unit 1 in the inner chamber of sleeve unit 2, the first end of the first barrel 11 in a section of thick bamboo unit 1 can offset with the first tube sheet 01 of floating head heat exchanger, thereby play fixed and sealed effect to first tube sheet 01, avoid follow-up pressure testing in-process, fluid leaks from the gap between the first end of first barrel 11 and the first tube sheet 01, guarantee to seal tightly, thereby be favorable to the pressure testing work of heat exchanger to go on smoothly.
In the device, a structure of a sealing snap ring 22 and at least two connecting pieces 23 is adopted, each device is provided with a plurality of sets of connecting pieces 23 with different specifications, and when the device is operated, a corresponding set of connecting pieces 23 can be selected according to the diameter of a first shell flange 02 of the floating head heat exchanger, the diameter of a flange hole and the distance between the flange holes, so that the device can be suitable for various floating head heat exchangers. The tool with different diameters or different pressures only needs to replace the connecting piece 23, so that the pressure test cost is reduced, and the universality of the tool is improved. Thereby the device has the advantages of convenient operation, good universality, low cost, good sealing performance and the like.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A pressure testing device of a floating head heat exchanger is characterized by comprising: a cylinder sealing unit (1) and a sleeve unit (2);
the cylinder sealing unit (1) is connected into the inner cavity of the sleeve unit (2), and the first end of the cylinder sealing unit (1) is positioned on the inner side of the first end of the sleeve unit (2);
the cartridge sealing unit (1) comprises: the first end of the first cylinder (11) is used for abutting against a first tube plate (01) of the floating head heat exchanger;
the sleeve unit (2) comprises: second barrel (21), sealing snap ring (22) and two at least connecting pieces (23), sealing snap ring (22) are fixed on the outer wall of the first end of second barrel (21), sealing snap ring (22) are used for offsetting with first casing flange (02) of floating head heat exchanger, connecting piece (23) are used for connecting sealing snap ring (22) with first casing flange (02) of floating head heat exchanger.
2. The device according to claim 1, wherein the cartridge unit (1) further comprises: the first flange (12), the second end of the first cylinder (11) is sleeved with the first flange (12);
the cartridge unit (2) further comprises: the second flange (24), the second flange (24) is sleeved on the second end of the second cylinder (21);
the first flange (12) and the second flange (24) are connected through a plurality of adjusting bolts (241).
3. The device according to claim 1, wherein the cartridge unit (1) further comprises: the first O-shaped sealing ring (13) is connected to the end face of the first end of the first cylinder (11).
4. The device according to claim 1, wherein the cartridge unit (2) further comprises: at least one second O-ring seal (25);
the end face of the sealing snap ring (22) is provided with at least one annular groove, and the annular groove is used for containing the second O-shaped sealing ring (25).
5. The device according to claim 1, wherein the connector (23) comprises a vertically connected arrangement of a catch plate (231) and a connecting plate (232);
the clamping plate (231) is used for being clamped on the end face, far away from the first shell flange (02), of the sealing clamping ring (22), and the connecting plate (232) is used for being connected with the first shell flange (02).
6. A device according to claim 5, characterised in that the edge of the end face of the catch plate (231) is provided with a strip-like projection (2311), said strip-like projection (2311) abutting the sealing collar (22).
7. The device according to claim 5, characterized in that the connecting plate (232) is provided with a first through hole (2321), and the first through hole (2321) of the connecting plate (232) is connected with a flange hole of the first housing flange (02) through a connecting bolt.
8. The device according to claim 5, characterized in that the connecting plate (232) is provided with a blind hole on its end face, in which a female thread is provided, and the blind hole on the connecting plate (232) is connected to the flange hole on the first housing flange (02) by means of a screw.
9. The apparatus of claim 1, further comprising: a hoisting unit (3);
the hoisting unit (3) comprises: the lifting device comprises a lifting ring (31) and two fixing plates (32), wherein the lifting ring (31) is fixed on the outer wall of the second cylinder (21) through the two fixing plates (32).
10. The apparatus of claim 1, further comprising: a flange snap ring (4);
a plurality of second through holes (41) are formed in the flange clamping ring (4), the second through holes (41) are matched with second shell flanges (03) of various floating head heat exchangers, and the second shell flanges (03) and the first shell flanges (02) are respectively located at two opposite ends of the floating head heat exchangers;
the flange snap ring (4) is used for clamping a second tube plate (04) of the floating head heat exchanger by connecting the second shell flange (03).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022976392.9U CN214309418U (en) | 2020-12-08 | 2020-12-08 | Pressure testing device of floating head heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022976392.9U CN214309418U (en) | 2020-12-08 | 2020-12-08 | Pressure testing device of floating head heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN214309418U true CN214309418U (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022976392.9U Active CN214309418U (en) | 2020-12-08 | 2020-12-08 | Pressure testing device of floating head heat exchanger |
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| CN (1) | CN214309418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114993846A (en) * | 2022-08-05 | 2022-09-02 | 山西阳煤化工机械（集团）有限公司 | Device for testing pressure of heat exchanger and using method thereof |
-
2020
- 2020-12-08 CN CN202022976392.9U patent/CN214309418U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114993846A (en) * | 2022-08-05 | 2022-09-02 | 山西阳煤化工机械（集团）有限公司 | Device for testing pressure of heat exchanger and using method thereof |
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