CN117782449B - Pressing tool for heat exchanger and use method - Google Patents
Pressing tool for heat exchanger and use method Download PDFInfo
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- CN117782449B CN117782449B CN202410205888.6A CN202410205888A CN117782449B CN 117782449 B CN117782449 B CN 117782449B CN 202410205888 A CN202410205888 A CN 202410205888A CN 117782449 B CN117782449 B CN 117782449B
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- 238000003825 pressing Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 75
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention belongs to the technical field of heat exchanger manufacturing, and particularly relates to a heat exchanger pressing tool and a use method thereof. According to the invention, bubbles seeping from a single tube of the heat exchanger can be collected through the gathering mechanism, the seeped bubbles are collected and conveyed into the detection mechanism, the third round tube is pushed to move upwards through the gathered bubbles, and the air leakage condition of the heat exchanger can be clearly known according to the situation of observing the upward movement of the third round tube.
Description
Technical Field
The invention relates to the technical field of heat exchanger manufacturing, in particular to a heat exchanger pressing tool and a using method thereof.
Background
The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, is also called a heat exchanger, and plays an important role in chemical industry, petroleum, power, food and other industrial production, and can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and has wide application, and in the production process of a built-in pipe of the heat exchanger, the heat exchanger is essentially tested for tightness, for example, a single pipe pressing device of the heat exchanger is disclosed in patent number CN 214010692U.
However, some existing pressing devices need to place the detected workpiece in water when in use, whether the workpiece leaks air is judged by observing whether bubbles are generated in the pressing process, and if some tiny cracks are realized on a single tube of the heat exchanger, only tiny bubbles are generated in the pressing process, and the bubbles are formed slowly and are not easily perceived by naked eyes, so that errors are easy to judge.
Disclosure of Invention
The invention provides a pressing tool for a heat exchanger and a use method thereof, aiming at solving the defects in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a frock is suppressed to heat exchanger, includes fixed connection's frame and basin, slidable mounting has installation mechanism in the frame, installation mechanism is in directly over the basin, install two air feed clamping mechanism that are used for centre gripping heat exchanger single tube on the installation mechanism, two air feed clamping mechanism are mirror image distribution, install the mechanism that gathers together that is used for wrapping up heat exchanger single tube on the installation mechanism, install the detection mechanism who gathers together and collect the bubble that oozes from the heat exchanger single tube on the mechanism.
Preferably, two guide rails are fixedly installed on the frame, sliding sleeves are respectively arranged on the two guide rails, the installation mechanism comprises an installation frame fixedly connected with the two sliding blocks, a first telescopic cylinder is fixedly installed on the frame, the bottom end of a piston rod of the first telescopic cylinder is fixedly connected with the installation frame, two installation plates are arranged below the installation frame, and a plurality of springs which are linearly distributed are fixedly installed between the installation plates and the installation frame.
Preferably, the air supply clamping mechanism comprises a rectangular plate penetrating through the mounting plate and fixedly connected with the mounting plate, a second telescopic cylinder is fixedly installed on the rectangular plate in a penetrating mode, a circular plate is fixedly installed at the end portion of a piston rod of the second telescopic cylinder, a conical rubber block is fixedly installed on one side, far away from the second telescopic cylinder, of the circular plate, two guide rods are installed on the rectangular plate in a penetrating and sliding mode, one ends, close to the circular plate, of the two guide rods are fixedly connected with the circular plate, air holes are formed in the rubber block, an air pipe is fixedly installed on the rectangular plate and the circular plate in a penetrating mode, and the bottom end of the air pipe is fixedly connected with the rubber block and communicated with the air holes.
Preferably, the gathering mechanism comprises a gathering cover I fixedly installed between two mounting plates, the gathering cover I is in an arch shape, mounting holes are formed in two sides of the gathering cover I, two rectangular plates penetrate through the corresponding mounting holes and are fixedly connected with the inner walls of the corresponding mounting holes in a sealing mode, a gathering cover II is fixedly installed at the top of the gathering cover I, and the inner walls of the top of the gathering cover II are in an arc shape.
Preferably, vibration motors are fixedly arranged on two sides of the outer side of the gathering cover I.
Preferably, the detection mechanism comprises a first circular pipe penetrating through a second gathering cover and fixedly connected with the second gathering cover, the first circular pipe is located at the center of the second gathering cover, a circular box is fixedly installed at the top of the first circular pipe in a penetrating mode, a third circular pipe is installed on the circular box in a penetrating and sliding mode, a top plate is fixedly installed at the top end of the third circular pipe, a second circular pipe is fixedly installed at the bottom end of the third circular pipe, an annular sealing plate is fixedly installed at the bottom end of the second circular pipe, and the annular sealing plate is in sliding connection with the inner wall of the circular box.
Preferably, a plurality of through holes distributed in a circumferential array are formed in the inner wall of the top of the round box, and two rectangular holes distributed symmetrically are formed in the inner wall of the round tube III.
Preferably, a miniature electric push rod is arranged in the second round tube, a support is fixedly sleeved on the outer side of the miniature electric push rod, the support is in hollow arrangement, the outer side of the support is fixedly connected with the inner wall of the second round tube, a sealing groove is formed in the bottom of the annular sealing plate, and a sealing plug is fixedly mounted at the end part of an output shaft of the miniature electric push rod.
The application method of the heat exchanger pressing tool is suitable for the heat exchanger pressing tool, and comprises the following steps:
S1, placing a single heat exchanger tube to be pressed between two air supply clamping mechanisms, clamping the single heat exchanger tube by the two air supply clamping mechanisms and inflating the interior of the single heat exchanger tube;
s2, driving the mounting mechanism to move downwards to enable the heat exchanger single tube, the gathering mechanism and the round box to be completely immersed in water in the water tank;
s3, observing the floating condition of the round tube III after a period of time to judge whether the single tube of the heat exchanger leaks air.
Compared with the prior art, the invention has the beneficial effects that:
1. The two air supply clamping mechanisms can fix heat exchanger single pipes with various lengths and various inner diameters and seal the opening end parts of the heat exchanger single pipes, then the two air supply clamping mechanisms are used for supplying air to the heat exchanger single pipes, and whether the heat exchanger single pipes immersed in water leak air can be judged according to whether air bubbles are generated on the heat exchanger single pipes;
2. The device can collect bubbles seeping from a single tube of the heat exchanger through the gathering mechanism, collect and convey the seeped bubbles into the detection mechanism, push the round tube III to move upwards through gathering tiny bubbles and pushing the round tube III to move upwards according to the situation of observing the upward movement of the round tube III, and can clearly know the air leakage of the heat exchanger.
Drawings
Fig. 1 is a schematic diagram of the whole structure of a pressing tool for a heat exchanger;
fig. 2 is a schematic diagram of a part of the structure of a pressing tool for a heat exchanger according to the present invention;
FIG. 3 is a schematic structural view of a mounting mechanism, an air supply clamping mechanism, a gathering mechanism and a detection mechanism in a heat exchanger pressing tool provided by the invention;
fig. 4 is a schematic structural diagram of an air supply clamping mechanism in a pressing tool of a heat exchanger;
FIG. 5 is a side sectional view of a gathering mechanism and a detection mechanism in a heat exchanger pressing tool provided by the invention;
FIG. 6 is an enlarged schematic view of the portion A in FIG. 5;
fig. 7 is an enlarged schematic view of the portion B in fig. 6.
In the figure: 1. a frame; 11. a telescopic cylinder I; 12. a guide rail; 13. a slide block; 2. a water tank; 3. a mounting mechanism; 31. a mounting frame; 32. a mounting plate; 33. a spring; 4. a gas supply clamping mechanism; 41. a rectangular plate; 42. a telescopic cylinder II; 43. a circular plate; 44. a guide rod; 45. a rubber block; 46. air holes; 47. an air pipe; 5. a gathering mechanism; 51. gathering the first cover; 52. gathering a second cover; 53. a vibration motor; 54. a mounting hole; 6. a detection mechanism; 61. a round tube I; 62. a round box; 63. a through hole; 64. an annular sealing plate; 641. sealing grooves; 65. a second round tube; 66. a round tube III; 67. a rectangular hole; 68. a top plate; 69. a bracket; 610. a miniature electric push rod; 611. and (5) sealing plugs.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, the present invention provides a technical solution: the utility model provides a frock is suppressed to heat exchanger, including fixed connection's frame 1 and basin 2, slidable mounting has installation mechanism 3 on the frame 1, and installation mechanism 3 is in directly over the basin 2, installs two air feed clamping mechanism 4 that are used for centre gripping heat exchanger single tube on the installation mechanism 3, and two air feed clamping mechanism 4 are mirror image distribution, installs on the installation mechanism 3 and is used for wrapping up heat exchanger single tube and gathers together mechanism 5, gathers together and installs on the mechanism 5 and collect the detection mechanism 6 that oozes the bubble from heat exchanger single tube.
Two guide rails 12 are fixedly mounted on the frame 1, sliding sleeves are respectively provided with a sliding block 13 on the two guide rails 12, the mounting mechanism 3 comprises a mounting frame 31 fixedly connected with the two sliding blocks 13, a telescopic cylinder I11 is fixedly mounted on the frame 1, the bottom end of a piston rod of the telescopic cylinder I11 is fixedly connected with the mounting frame 31, two mounting plates 32 are arranged below the mounting frame 31, and a plurality of springs 33 which are linearly distributed are fixedly mounted between the mounting plates 32 and the mounting frame 31.
The air supply clamping mechanism 4 comprises a rectangular plate 41 penetrating through the mounting plate 32 and fixedly connected with the mounting plate 32, a second telescopic cylinder 42 is fixedly installed on the rectangular plate 41 in a penetrating mode, a circular plate 43 is fixedly installed at the end portion of a piston rod of the second telescopic cylinder 42, a conical rubber block 45 is fixedly installed on one side, far away from the second telescopic cylinder 42, of the circular plate 43, two guide rods 44 are installed on the rectangular plate 41 in a penetrating and sliding mode, one ends, close to the circular plate 43, of the two guide rods 44 are fixedly connected with the circular plate 43, air holes 46 are formed in the rubber block 45, an air pipe 47 is fixedly installed on the rectangular plate 41 and the circular plate 43 in a penetrating mode, and the bottom end of the air pipe 47 is fixedly connected with the rubber block 45 and communicated with the air holes 46.
Further, since the rubber blocks 45 are arranged in a conical shape, when the two rubber blocks 45 clamp the heat exchanger single tube, the heat exchanger single tube and the two rubber blocks 45 are located on the same axis, the end part of the heat exchanger single tube can be abutted against the slope of the rubber blocks 45, the effect of blocking the opening of the end part of the heat exchanger single tube can be achieved, an air source is externally connected through the air pipe 47, and compressed air is discharged through the air hole 46 and can enter the heat exchanger single tube.
The gathering mechanism 5 comprises a gathering cover I51 fixedly installed between the two mounting plates 32, the gathering cover I51 is in an arch shape, mounting holes 54 are formed in two sides of the gathering cover I51, the two rectangular plates 41 penetrate through the corresponding mounting holes 54 and are fixedly connected with the inner walls of the corresponding mounting holes 54 in a sealing mode, a gathering cover II 52 is fixedly installed at the top of the gathering cover I51, and the inner walls of the tops of the gathering cover II 52 are in an arc shape.
Vibration motors 53 are fixedly mounted on two sides of the outer side of the first gathering cover 51.
Further, when the vibration motor 53 vibrates and can drive surrounding water to vibrate, if the gas leaked from the leakage part of the single tube of the heat exchanger is attached to the single tube of the heat exchanger and cannot float upwards, the gas bubbles can be separated from the single tube of the heat exchanger and move upwards under the vibration of the water, and when the gas bubbles float upwards and fall on the inner walls of the first gathering cover 51 and the second gathering cover 52, the vibration motor 53 drives the first gathering cover 51 and the second gathering cover 52 to vibrate, so that the gas bubbles attached to the inner walls of the first gathering cover 51 and the second gathering cover 52 can enter the first circular tube 61 and move upwards continuously, and the mounting frame 31 and the mounting plate 32 are flexibly connected through the springs 33, so that the vibration generated by the vibration motor 53 cannot greatly affect the mounting frame 31.
The detection mechanism 6 comprises a first circular tube 61 which penetrates through the second gathering cover 52 and is fixedly connected with the second gathering cover 52, the first circular tube 61 is positioned at the center of the second gathering cover 52, a circular box 62 is fixedly installed at the top of the first circular tube 61 in a penetrating mode, a third circular tube 66 is installed on the circular box 62 in a penetrating and sliding mode, a top plate 68 is fixedly installed at the top end of the third circular tube 66, a second circular tube 65 is fixedly installed at the bottom end of the third circular tube 66, an annular sealing plate 64 is fixedly installed at the bottom end of the second circular tube 65, and the annular sealing plate 64 is in sliding connection with the inner wall of the circular box 62.
Further, the outside of the third tube 66 is engraved with a 0 degree line of the outside gauge of the third tube 66 being flush with the top of the circular box 62 when the bottom of the annular seal plate 64 is in engagement with the bottom inner wall of the circular box 62.
The inner wall of the top of the round box 62 is provided with a plurality of through holes 63 distributed in a circumferential array, and the inner wall of the round tube III 66 is provided with two rectangular holes 67 symmetrically distributed.
The second round tube 65 is internally provided with a miniature electric push rod 610, a bracket 69 is fixedly sleeved on the outer side of the miniature electric push rod 610, the bracket 69 is in hollow arrangement, the outer side of the bracket 69 is fixedly connected with the inner wall of the second round tube 65, the bottom of the annular sealing plate 64 is provided with a sealing groove 641, and the end part of an output shaft of the miniature electric push rod 610 is fixedly provided with a sealing plug 611.
Further, when the sealing plug 611 seals the sealing groove 641, air in the first circular tube 61 cannot move upwards, so that when bubbles under the annular sealing plate 64 are increased, the annular sealing plate 64 is pushed upwards, and when the sealing plug 611 does not seal the sealing groove 641, the whole detection mechanism 6 is in a penetrating condition, so that in the process of immersing the detection mechanism 6 in water, the water completely submerges the part of the detection mechanism 6 immersed in water, and air of the submerged part of the detection mechanism 6 is exhausted.
The application method of the heat exchanger pressing tool is suitable for the heat exchanger pressing tool, and comprises the following steps:
S1, placing a single heat exchanger tube to be pressed between two air supply clamping mechanisms 4, clamping the single heat exchanger tube by the two air supply clamping mechanisms 4 and inflating the interior of the single heat exchanger tube;
s2, driving the mounting mechanism 3 to move downwards so that the heat exchanger single tube, the gathering mechanism 5 and the round box 62 are completely immersed in water in the water tank 2;
s3, observing the floating condition of the round tube III 66 after a period of time to judge whether the single tube of the heat exchanger leaks air.
In this embodiment: when the heat exchanger single tube is used, the heat exchanger single tube is placed between the two rubber blocks 45, then the two telescopic cylinders II 42 are controlled to extend, so that the two rubber blocks 45 are close to each other and abut against the two ends of the heat exchanger single tube, the two rubber blocks 45 block openings at the two ends of the heat exchanger single tube, and then the heat exchanger single tube is inflated through the two air pipes 47;
Then the telescopic cylinder I11 is controlled to extend, the telescopic cylinder I11 drives the mounting mechanism 3 to move downwards, the round box 62 is completely immersed into water in the water tank 2, in the process, the gas in the gathering cover I51, the gathering cover II 52 and the round tube I61 is ejected by the water, the gas enters the round tube II 65 and the round tube III 66 through the sealing groove 641 and is ejected through the two rectangular holes 67, meanwhile, the water in the water tank 2 enters the round box 62 through the plurality of through holes 63 and enters the round tube III 66 through the two rectangular holes 67, so that the submerged parts of the gathering mechanism 5 and the detection mechanism 6 are ensured not to leave air, and then the micro electric push rod 610 is controlled to be shortened, so that the sealing plug 611 moves upwards and seals the sealing groove 641;
then waiting for a period of time, if the single tube of the heat exchanger has a part with air leakage, air in the single tube of the heat exchanger is discharged from the part with air leakage and forms bubbles in water, the bubbles float upwards, and in the waiting process, two vibrating motors 53 are started to vibrate the gathering cover I51 and nearby water, and the rising of the bubbles can be accelerated through vibration;
The air bubbles which float up directly enter the circular tube I61 or enter the circular tube I61 along the inner walls of the gathering cover I51 and the gathering cover II 52, then the air bubbles are accumulated below the annular sealing plate 64, the air bubbles continuously accumulate below the annular sealing plate 64 and float up against the annular sealing plate 64, the circular tube III 66 floats up synchronously along with the annular sealing plate 64, and the air leakage condition of the single tube of the heat exchanger can be known by judging the floating up condition of the circular tube III 66.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. Frock is suppressed to heat exchanger, including fixed connection's frame (1) and basin (2), its characterized in that: the device is characterized in that a mounting mechanism (3) is slidably mounted on the frame (1), the mounting mechanism (3) is positioned right above the water tank (2), two air supply clamping mechanisms (4) for clamping a single tube of the heat exchanger are mounted on the mounting mechanism (3), the two air supply clamping mechanisms (4) are distributed in a mirror image mode, a gathering mechanism (5) for wrapping the single tube of the heat exchanger is mounted on the mounting mechanism (3), and a detection mechanism (6) for collecting bubbles seeping from the single tube of the heat exchanger is mounted on the gathering mechanism (5);
Two guide rails (12) are fixedly mounted on the frame (1), sliding sleeves are respectively arranged on the two guide rails (12) and are provided with sliding blocks (13), the mounting mechanism (3) comprises a mounting frame (31) fixedly connected with the two sliding blocks (13), a telescopic cylinder I (11) is fixedly mounted on the frame (1), the bottom end of a piston rod of the telescopic cylinder I (11) is fixedly connected with the mounting frame (31), two mounting plates (32) are arranged below the mounting frame (31), and a plurality of springs (33) which are in linear distribution are fixedly mounted between the mounting plates (32) and the mounting frame (31);
The gathering mechanism (5) comprises a gathering cover I (51) fixedly installed between two mounting plates (32), the gathering cover I (51) is in an arch shape, mounting holes (54) are formed in two sides of the gathering cover I (51), two rectangular plates (41) penetrate through the corresponding mounting holes (54) and are fixedly connected with the inner walls of the corresponding mounting holes (54) in a sealing mode, a gathering cover II (52) is fixedly installed at the top of the gathering cover I (51), and the inner walls of the tops of the gathering cover II (52) are in an arc shape;
The detection mechanism (6) comprises a first circular tube (61) penetrating through the second gathering cover (52) and fixedly connected with the second gathering cover (52), the first circular tube (61) is positioned at the center of the second gathering cover (52), a circular box (62) is fixedly installed at the top of the first circular tube (61) in a penetrating mode, a third circular tube (66) is installed on the circular box (62) in a penetrating and sliding mode, a top plate (68) is fixedly installed at the top end of the third circular tube (66), a second circular tube (65) is fixedly installed at the bottom end of the third circular tube (66), an annular sealing plate (64) is fixedly installed at the bottom end of the second circular tube (65), and the annular sealing plate (64) is in sliding connection with the inner wall of the circular box (62);
A plurality of through holes (63) distributed in a circumferential array are formed in the inner wall of the top of the round box (62), and two rectangular holes (67) symmetrically distributed are formed in the inner wall of the round tube III (66);
Be equipped with miniature electric push rod (610) in pipe two (65), the outside fixed cover of miniature electric push rod (610) is equipped with support (69), support (69) are the fretwork setting, the outside of support (69) and the inner wall fixed connection of pipe two (65), seal groove (641) have been seted up to the bottom of annular closing plate (64), output shaft tip fixed mounting of miniature electric push rod (610) has sealing plug (611).
2. The heat exchanger pressing tool according to claim 1, wherein: the air supply clamping mechanism (4) comprises a rectangular plate (41) penetrating through the mounting plate (32) and fixedly connected with the mounting plate (32), a telescopic cylinder II (42) is fixedly installed on the rectangular plate (41), a circular plate (43) is fixedly installed at the end part of a piston rod of the telescopic cylinder II (42), a conical rubber block (45) is fixedly installed on one side, far away from the telescopic cylinder II (42), of the circular plate (43), two guide rods (44) are fixedly connected with the circular plate (43) through penetrating sliding installation on the rectangular plate (41), one ends, close to the circular plate (43), of the two guide rods (44), air holes (46) are formed in the rubber block (45), an air pipe (47) is fixedly installed on the rectangular plate (41) and the circular plate (43), and the bottom end of the air pipe (47) is fixedly connected with the rubber block (45) and is communicated with the air holes (46).
3. The heat exchanger pressing tool according to claim 2, wherein: vibration motors (53) are fixedly arranged on two sides of the outer side of the gathering cover I (51).
4. The utility model provides a frock application method is suppressed to heat exchanger, is applicable to the frock is suppressed to heat exchanger that claim 3 is described, its characterized in that: the method comprises the following steps:
S1, placing a single heat exchanger tube to be pressed between two air supply clamping mechanisms (4), clamping the single heat exchanger tube through the two air supply clamping mechanisms (4) and inflating the interior of the single heat exchanger tube;
S2, driving the mounting mechanism (3) to move downwards to enable the heat exchanger single tube, the gathering mechanism (5) and the round box (62) to be completely immersed in water in the water tank (2);
s3, observing the floating condition of the round tube III (66) after a period of time to judge whether the single tube of the heat exchanger leaks air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410205888.6A CN117782449B (en) | 2024-02-26 | 2024-02-26 | Pressing tool for heat exchanger and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410205888.6A CN117782449B (en) | 2024-02-26 | 2024-02-26 | Pressing tool for heat exchanger and use method |
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| Publication Number | Publication Date |
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| CN117782449A CN117782449A (en) | 2024-03-29 |
| CN117782449B true CN117782449B (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410205888.6A Active CN117782449B (en) | 2024-02-26 | 2024-02-26 | Pressing tool for heat exchanger and use method |
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