CN111895275A - Water leakage detection device for inner wall of heat transfer pipe of heat exchanger - Google Patents
Water leakage detection device for inner wall of heat transfer pipe of heat exchanger Download PDFInfo
- Publication number
- CN111895275A CN111895275A CN202010814857.2A CN202010814857A CN111895275A CN 111895275 A CN111895275 A CN 111895275A CN 202010814857 A CN202010814857 A CN 202010814857A CN 111895275 A CN111895275 A CN 111895275A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a device for detecting water leakage on the inner wall of a heat transfer pipe of a heat exchanger, which comprises a mounting block, wherein a travelling mechanism is arranged in the mounting block, the travelling mechanism comprises four first sliding cavities uniformly arranged in the mounting block, the openings of the first sliding cavities face outwards, first sliding blocks are arranged in the first sliding cavities in a sliding manner, wheel grooves with openings far away from the mounting block are arranged in the first sliding blocks, and travelling wheels are rotationally arranged in the wheel grooves. And subsequently, the heat exchanger is discarded after the scrapped memory of the heat transfer pipes reaches a certain amount.
Description
Technical Field
The invention relates to heat exchange equipment, in particular to a water leakage detection device for the inner wall of a heat transfer pipe of a heat exchanger.
Background
The shell of the shell-and-tube heat exchanger is circular, parallel heat transfer tubes are arranged inside the shell, two ends of the tube bundle are fixed on the tube plate, two fluids for heat exchange are arranged in the shell-and-tube heat exchanger, one fluid flows in the tube and the other fluid flows outside the tube, the wall surface of the tube bundle is a heat transfer surface, the tube type heat exchanger has the advantages of small volume and high exchange efficiency, the length of the copper tube inside the tube cannot be checked, the copper tube cannot be replaced, the exchanger can generate water scale in the using process, and due to the erosion of hot water and the scraping corrosion during descaling, the conditions that the water flow is small and the water outlet is not too hot are met after several.
Disclosure of Invention
The invention aims to provide a device for detecting water leakage on the inner wall of a heat exchange heat transfer pipe, and solves the problems that the condition in the pipe cannot be detected after descaling operation is carried out on the heat transfer pipe, whether the water leakage causes low heat transfer efficiency or not and the like.
The invention is realized by the following technical scheme.
The invention relates to a device for detecting water leakage of the inner wall of a heat transfer pipe of a heat exchanger, which comprises a mounting block, wherein a travelling mechanism is arranged in the mounting block, the travelling mechanism comprises four first sliding cavities which are uniformly arranged in the mounting block, the openings of the first sliding cavities face outwards, first sliding blocks are arranged in the first sliding cavities in a sliding manner, wheel grooves with openings far away from the mounting block are arranged in the first sliding blocks, travelling wheels are arranged in the wheel grooves in a rotating manner, first rotating shafts are fixedly arranged in the travelling wheels, the first rotating shafts are rotatably arranged in the wheel grooves, first bevel gears are fixedly arranged on the first rotating shafts, the first bevel gears are in meshing connection with second bevel gears, second rotating shafts are fixedly arranged on the second bevel gears, small gears are fixedly arranged on the second rotating shafts, first transmission cavities with openings facing the mounting block are arranged in the first sliding blocks, the second rotating shafts are in rotational connection with the inner wall of the first transmission cavities, the small gear is meshed with the big gear, a third rotating shaft is fixedly arranged on the lower end face of the big gear, a second sliding cavity with a downward opening is arranged in the third rotating shaft, a fourth rotating shaft is arranged in the second sliding cavity in a sliding mode, a third bevel gear is fixedly arranged on the lower end face of the fourth rotating shaft, a first spring is fixedly arranged on the inner wall of the lower side of the first sliding cavity, and the upper end face of the first spring is fixedly connected with the lower end face of the first sliding block; the rear side of the walking mechanism is provided with two detection mechanisms, each detection mechanism comprises a third sliding cavity provided with a first spring and a third spring, the third sliding cavity is provided with an opening in the direction away from the center of the placement block, the inner wall of the lower side of the third sliding cavity at the upper side is fixedly provided with a second spring, the upper end surface of the second spring is fixedly provided with a first pressure block, the first pressure block is in sliding connection with the third sliding cavity, the upper end surface of the first pressure block is fixedly provided with an induction block, the outer wall of the induction block is slidably provided with a floating block, the lower end surface of the floating block is fixedly provided with a third spring, the lower end surface of the third spring is fixedly provided with a second pressure block, the second pressure block is fixedly connected with the outer wall of the placement block, the detection mechanism at the rear side and the detection mechanism at the front side form a fifteen-degree rotation angle, and the two; a mounting cavity with a backward opening is arranged in the mounting block, a first motor is fixedly arranged on the inner wall of the front side of the mounting cavity, the front end surface of the first motor controls a fifth rotating shaft, a fourth bevel gear is fixedly arranged on the front end surface of the fifth rotating shaft, the fourth bevel gear is meshed with four third bevel gears, a repairing mechanism is arranged on the rear side of the first motor, the repairing mechanism comprises a second motor fixedly connected with the rear end surface of the first motor, a sixth rotating shaft is fixedly arranged on the rear end surface of the second motor, a fourth sliding cavity with a backward opening is arranged in the sixth rotating shaft, a third motor is fixedly arranged on the inner wall of the front side of the fourth sliding cavity, a first screw rod is fixedly arranged on the rear end surface of the third motor, a second sliding block is slidably arranged on the sixth rotating shaft, the second sliding block is in threaded connection with the first screw rod, and a welding rod is fixedly arranged on the upper end surface of the second sliding block, the welding rod is internally provided with a fifth sliding cavity with an upward opening, a fourth motor is fixedly arranged on the inner wall of the lower side of the fifth sliding cavity, a second lead screw is fixedly arranged at the upper end of the fourth motor, a third sliding block is slidably arranged in the fifth sliding cavity, the third sliding block is in threaded connection with the second lead screw, a fifth motor is arranged in the third sliding block, and a welding gun is arranged on the upper end face of the fifth motor.
Preferably, settle the chamber downside and be equipped with water absorption mechanism, water absorption mechanism is including settling the chamber that the chamber downside was equipped with and retaining the chamber, the fixed water suction pump that is equipped with of chamber downside inner wall, the fixed water pipe that is equipped with of terminal surface under the water suction pump, water pipe intercommunication external space.
Preferably, a sixth sliding cavity with a downward opening is formed in the placement block, a sixth motor is fixedly arranged on the inner wall of the left side of the sixth sliding cavity, a third screw rod is fixedly arranged on the right end face of the sixth motor, the right end face of the third screw rod is rotatably connected with the inner wall of the right side of the sixth sliding cavity, the baffle is slidably connected with the sixth sliding cavity, and the baffle is in threaded connection with the third screw rod.
Preferably, a memory block is fixedly arranged on the inner wall of the upper side of the placing cavity.
The invention has the beneficial effects that: the invention can detect cracks through heat transfer pipes with different diameters on the market by an in-pipe walking mechanism, and the invention can detect the cracks through two rings of spring pressure detecting heads and assist the floating block to measure the water level of water leakage.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the embodiment of the present invention at A in FIG. 1;
FIG. 3 is a schematic view of the embodiment of the present invention in the direction B-B in FIG. 1;
FIG. 4 is a schematic view of the embodiment of the present invention in the direction of C-C in FIG. 1;
FIG. 5 is a schematic view of the embodiment of the present invention in the direction D-D in FIG. 4;
FIG. 6 is a schematic view of the embodiment of the present invention in the direction E-E of FIG. 4;
FIG. 7 is a schematic view of the embodiment of the present invention in the direction F-F shown in FIG. 4.
Detailed Description
The invention will now be described in detail with reference to fig. 1-7, wherein for ease of description the orientations described below are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The device for detecting water leakage in the inner wall of a heat transfer tube of a heat exchanger described in conjunction with fig. 1-7 comprises a placement block 10, a traveling mechanism 70 is arranged in the placement block 10, the traveling mechanism 70 comprises four first sliding cavities 11 uniformly arranged in the placement block 10, openings of the first sliding cavities 11 face outward, first sliding blocks 18 are arranged in the first sliding cavities 11 in a sliding manner, wheel grooves 26 with openings far away from the placement block 10 are formed in the first sliding blocks 18, traveling wheels 25 are rotatably arranged in the wheel grooves 26, first rotating shafts 23 are fixedly arranged in the traveling wheels 25, the first rotating shafts 23 are rotatably arranged in the wheel grooves 26, first bevel gears 22 are fixedly arranged on the first rotating shafts 23, the first bevel gears 22 are in meshed connection with second bevel gears 21, second rotating shafts 19 are fixedly arranged on the second bevel gears 21, and small gears 20 are fixedly arranged on the second rotating shafts 19, a first transmission cavity 28 with an opening facing the mounting block 10 is formed in the first sliding block 18, the second rotating shaft 19 is rotatably connected with the inner wall of the first transmission cavity 28, the pinion 20 is connected with the gearwheel 27 in a meshed manner, a third rotating shaft 16 is fixedly arranged on the lower end face of the gearwheel 27, a second sliding cavity 17 with a downward opening is formed in the third rotating shaft 16, a fourth rotating shaft 14 is slidably arranged in the second sliding cavity 17, a third bevel gear 13 is fixedly arranged on the lower end face of the fourth rotating shaft 14, a first spring 15 is fixedly arranged on the inner wall of the lower side of the first sliding cavity 11, and the upper end face of the first spring 15 is fixedly connected with the lower end face of the first sliding block 18;
two detection mechanisms 71 are arranged on the rear side of the travelling mechanism 70, each detection mechanism 71 comprises a first spring 15 third sliding cavities 36 which are arranged in the mounting block 10 and open towards the direction far away from the center of the mounting block 10, a second spring 37 is fixedly arranged on the inner wall of the lower side of the third sliding cavity 36 on the upper side, a first pressure block 54 is fixedly arranged on the upper end surface of the second spring 37, the first pressure block 54 is connected with the third sliding cavity 36 in a sliding way, the upper end surface of the first pressure block 54 is fixedly provided with an induction block 32, the outer wall of the induction block 32 is provided with a floating block 33 in a sliding way, a third spring 34 is fixedly arranged on the lower end surface of the floating block 33, a second pressure block 35 is fixedly arranged on the lower end surface of the third spring 34, the second pressure block 35 is fixedly connected with the outer wall of the mounting block 10, the rear side detection mechanism 71 and the front side detection mechanism 71 form a fifteen-degree corner, and two walking mechanisms 70 for staggered detection can enable a detection surface to be more accurate;
a mounting cavity 38 with a backward opening is arranged in the mounting block 10, a first motor 31 is fixedly arranged on the inner wall of the front side of the mounting cavity 38, the front end surface of the first motor 31 controls a fifth rotating shaft 30, a fourth bevel gear 29 is fixedly arranged on the front end surface of the fifth rotating shaft 30, the fourth bevel gear 29 is meshed with four third bevel gears 13, a repairing mechanism 72 is arranged on the rear side of the first motor 31, the repairing mechanism 72 comprises a second motor 12 fixedly connected with the rear end surface of the first motor 31, a sixth rotating shaft 42 is fixedly arranged on the rear end surface of the second motor 12, a fourth sliding cavity 57 with a backward opening is arranged in the sixth rotating shaft 42, a third motor 39 is fixedly arranged on the inner wall of the front side of the fourth sliding cavity 57, a first screw rod 40 is fixedly arranged on the rear end surface of the third motor 39, a second sliding block 41 is slidably arranged on the sixth rotating shaft 42, and the second sliding block 41 is in threaded connection with the first screw rod 40, the fixed welding pole 46 that is equipped with of second slider 41 up end, be equipped with the ascending fifth sliding chamber 58 of opening in the welding pole 46, the fixed fourth motor 43 that is equipped with of fifth sliding chamber 58 downside inner wall, the fixed second lead screw 44 that is equipped with in fourth motor 43 upper end, it is equipped with third slider 45 to slide in the fifth sliding chamber 58, third slider 45 with second lead screw 44 threaded connection, be equipped with fifth motor 47 in the third slider 45, fifth motor 47 up end is equipped with welder 48.
Beneficially, a water sucking mechanism 73 is arranged on the lower side of the placement cavity 38, the water sucking mechanism 73 comprises a water storage cavity 51 arranged on the lower side of the placement cavity 38, a water sucking pump 53 is fixedly arranged on the inner wall of the lower side of the water storage cavity 51, a water pipe 52 is fixedly arranged on the lower end face of the water sucking pump 53, and the water pipe 52 is communicated with the external space.
Beneficially, a sixth sliding cavity 55 with a downward opening is arranged in the mounting block 10, a sixth motor 56 is fixedly arranged on the inner wall of the left side of the sixth sliding cavity 55, a third screw rod 50 is fixedly arranged on the right end face of the sixth motor 56, the right end face of the third screw rod 50 is rotatably connected with the inner wall of the right side of the sixth sliding cavity 55, the baffle 49 is slidably connected with the sixth sliding cavity 55, and the baffle 49 is in threaded connection with the third screw rod 50.
Advantageously, a memory block 59 is fixedly arranged on the inner wall of the upper side of the placing cavity 38.
Application method
Initially, the present invention is put into a heat transfer pipe, according to different pipe diameters, the third rotating shaft 16 and the fourth rotating shaft 14 slide close to each other, the first spring 15 is compressed, the sensing block 32 slides to the bottom of the third sliding cavity 36, the second spring 37 is compressed, and the space outside the pipe is filled with water.
When the device walks in the pipe, the first motor 31 controls the fifth rotating shaft 30 to rotate, the fifth rotating shaft 30 drives the fourth bevel gear 29 to rotate, the fourth bevel gear 29 is meshed with four third bevel gears 13, namely, the upper, the lower, the left and the right, the third bevel gear 13 drives the fourth rotating shaft 14 to rotate, the fourth rotating shaft 14 drives the third rotating shaft 16 to rotate, the third rotating shaft 16 drives the large gear 27 to rotate in the first transmission cavity 28, the large gear 27 drives the small gear 20 to rotate, the small gear 20 drives the second rotating shaft 19 to rotate, the second rotating shaft 19 drives the second bevel gear 21 to rotate, the second bevel gear 21 drives the first bevel gear 22 to rotate in a meshed mode, the first bevel gear 22 drives the first rotating shaft 23 to rotate, the first rotating shaft 23 drives the traveling wheels 25 to rotate in the wheel grooves 26, and the four.
When the crack is detected, the sensing block 32 is slightly ejected, the second spring 37 is stretched, the first pressure block 54 senses the pressure change, the fifth rotating shaft 30 stops, the device stops, and the water quantity detection is carried out.
When the water leakage amount is detected, water flowing into the tube enables the floating block 33 to float, the floating block 33 stretches or compresses the third spring 34, the second pressure block 35 senses pressure change from the third spring 34, when the water inflow amount is large, the heat transfer tube cannot be repaired, the memory block 59 conducts scrapping memory on the heat transfer tube, and when the water inflow amount is not large, the heat transfer tube can be repaired.
Before repair, the water is temporarily stopped to flow into the space outside the pipe, and the water leaking into the space inside the pipe is absorbed, and when the water is absorbed, the water absorption pump 53 pumps the water into the water storage cavity 51 through the water pipe 52.
Before welding, the sixth motor 56 controls the third screw rod 50 to rotate, and the third screw rod 50 drives the baffle 49 to open, so that the accommodating cavity 38 is communicated with the external space.
During welding, the third motor 39 controls the first screw 40 to rotate, the first screw 40 drives the second slider 41 to move backwards and extend out of the accommodating cavity 38, the second motor 12 controls the sixth rotating shaft 42 to rotate and drive the welding rod 46 to turn to the position of a crack, the fourth motor 43 controls the second screw 44 to rotate, the second screw 44 drives the third slider 45 to slide outwards and reach the crack, and the fifth motor 47 is started to control the welding gun 48 to weld the crack.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (4)
1. The utility model provides a heat exchanger heat-transfer pipe inner wall detection device that leaks, is including settling the piece, its characterized in that: the mounting block is internally provided with a travelling mechanism, the travelling mechanism comprises four first sliding cavities uniformly arranged in the mounting block, openings of the first sliding cavities face outwards, first sliding blocks are arranged in the first sliding cavities in a sliding manner, wheel grooves with openings far away from the mounting block are formed in the first sliding blocks, travelling wheels are arranged in the wheel grooves in a rotating manner, first rotating shafts are fixedly arranged in the travelling wheels, the first rotating shafts are rotatably arranged in the wheel grooves, first bevel gears are fixedly arranged on the first rotating shafts, the first bevel gears are in meshed connection with second bevel gears, second rotating shafts are fixedly arranged on the second bevel gears, small gears are fixedly arranged on the second rotating shafts, first rotating cavities with openings facing the mounting block are arranged in the first sliding blocks, the second rotating shafts are in meshed connection with the inner walls of the first rotating cavities, and the small gears are in meshed connection with the large gears, a third rotating shaft is fixedly arranged on the lower end face of the large gear, a second sliding cavity with a downward opening is arranged in the third rotating shaft, a fourth rotating shaft is arranged in the second sliding cavity in a sliding mode, a third bevel gear is fixedly arranged on the lower end face of the fourth rotating shaft, a first spring is fixedly arranged on the inner wall of the lower side of the first sliding cavity, and the upper end face of the first spring is fixedly connected with the lower end face of the first sliding block; the rear side of the walking mechanism is provided with two detection mechanisms, each detection mechanism comprises a third sliding cavity provided with a first spring and a third spring, the third sliding cavity is provided with an opening in the direction away from the center of the placement block, the inner wall of the lower side of the third sliding cavity at the upper side is fixedly provided with a second spring, the upper end surface of the second spring is fixedly provided with a first pressure block, the first pressure block is in sliding connection with the third sliding cavity, the upper end surface of the first pressure block is fixedly provided with an induction block, the outer wall of the induction block is slidably provided with a floating block, the lower end surface of the floating block is fixedly provided with a third spring, the lower end surface of the third spring is fixedly provided with a second pressure block, the second pressure block is fixedly connected with the outer wall of the placement block, the detection mechanism at the rear side and the detection mechanism at the front side form a fifteen-degree rotation angle, and the two; a mounting cavity with a backward opening is arranged in the mounting block, a first motor is fixedly arranged on the inner wall of the front side of the mounting cavity, the front end surface of the first motor controls a fifth rotating shaft, a fourth bevel gear is fixedly arranged on the front end surface of the fifth rotating shaft, the fourth bevel gear is meshed with four third bevel gears, a repairing mechanism is arranged on the rear side of the first motor, the repairing mechanism comprises a second motor fixedly connected with the rear end surface of the first motor, a sixth rotating shaft is fixedly arranged on the rear end surface of the second motor, a fourth sliding cavity with a backward opening is arranged in the sixth rotating shaft, a third motor is fixedly arranged on the inner wall of the front side of the fourth sliding cavity, a first screw rod is fixedly arranged on the rear end surface of the third motor, a second sliding block is slidably arranged on the sixth rotating shaft, the second sliding block is in threaded connection with the first screw rod, and a welding rod is fixedly arranged on the upper end surface of the second sliding block, the welding rod is internally provided with a fifth sliding cavity with an upward opening, a fourth motor is fixedly arranged on the inner wall of the lower side of the fifth sliding cavity, a second lead screw is fixedly arranged at the upper end of the fourth motor, a third sliding block is slidably arranged in the fifth sliding cavity, the third sliding block is in threaded connection with the second lead screw, a fifth motor is arranged in the third sliding block, and a welding gun is arranged on the upper end face of the fifth motor.
2. The device for detecting water leakage in the inner wall of the heat transfer pipe of the heat exchanger according to claim 1, wherein: the water sucking mechanism is arranged on the lower side of the placement cavity and comprises a water storage cavity arranged on the lower side of the placement cavity, a water sucking pump is fixedly arranged on the inner wall of the lower side of the water storage cavity, a water pipe is fixedly arranged on the lower end face of the water sucking pump, and the water pipe is communicated with the external space.
3. The device for detecting water leakage in the inner wall of the heat transfer pipe of the heat exchanger according to claim 1, wherein: the mounting block is internally provided with a sixth sliding cavity with a downward opening, the inner wall of the left side of the sixth sliding cavity is fixedly provided with a sixth motor, the right end face of the sixth motor is fixedly provided with a third screw rod, the right end face of the third screw rod is rotatably connected with the inner wall of the right side of the sixth sliding cavity, the baffle is in sliding connection with the sixth sliding cavity, and the baffle is in threaded connection with the third screw rod.
4. The device for detecting water leakage in the inner wall of the heat transfer pipe of the heat exchanger according to claim 1, wherein: and a memory block is fixedly arranged on the inner wall of the upper side of the mounting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010814857.2A CN111895275A (en) | 2020-08-13 | 2020-08-13 | Water leakage detection device for inner wall of heat transfer pipe of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010814857.2A CN111895275A (en) | 2020-08-13 | 2020-08-13 | Water leakage detection device for inner wall of heat transfer pipe of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111895275A true CN111895275A (en) | 2020-11-06 |
Family
ID=73228885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010814857.2A Withdrawn CN111895275A (en) | 2020-08-13 | 2020-08-13 | Water leakage detection device for inner wall of heat transfer pipe of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111895275A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923434A (en) * | 2021-03-05 | 2021-06-08 | 河南裕鸿建筑工程有限公司 | Water heating air pipeline structure for assembly type building wall |
-
2020
- 2020-08-13 CN CN202010814857.2A patent/CN111895275A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923434A (en) * | 2021-03-05 | 2021-06-08 | 河南裕鸿建筑工程有限公司 | Water heating air pipeline structure for assembly type building wall |
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Application publication date: 20201106 |