CN117073932A - Leakage detection device for heat exchange tube of condenser and use method of leakage detection device - Google Patents
Leakage detection device for heat exchange tube of condenser and use method of leakage detection device Download PDFInfo
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- CN117073932A CN117073932A CN202311075852.2A CN202311075852A CN117073932A CN 117073932 A CN117073932 A CN 117073932A CN 202311075852 A CN202311075852 A CN 202311075852A CN 117073932 A CN117073932 A CN 117073932A
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- 238000001514 detection method Methods 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000010985 leather Substances 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 24
- 230000008859 change Effects 0.000 claims description 11
- 238000013459 approach Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 2
- 239000000700 radioactive tracer Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
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Abstract
The invention discloses a condenser heat exchange tube leakage detection device and a use method thereof, and relates to the field of pipeline leakage detection devices and use methods thereof. According to the invention, the air tightness of the comparison tube is conveniently detected by arranging the pressure gauge II and the air inflation leather bag II, the air tightness of the two groups of detection shells is conveniently detected by arranging the pressure gauge I and the air inflation leather bag I, the air tightness of the heat exchange tube of the section is conveniently detected, and the device is not easily influenced by the temperature environment in the detection process, and has small volume and convenient and simple operation.
Description
Technical Field
The invention relates to the technical field of a pipeline leakage detection device and a using method thereof, in particular to a condenser heat exchange tube leakage detection device and a using method thereof.
Background
The condenser is an important auxiliary machine of a steam turbine unit of a thermal power plant, and has the main task of condensing steam discharged by a steam turbine into water, establishing and maintaining a certain vacuum degree at a steam discharge port of the steam turbine, wherein the condenser of a power station is a special shell-and-tube surface heat exchanger, a cooling tube of the condenser is mostly built by adopting a copper tube for a long time, and leakage detection equipment is needed to detect before the heat exchange tube is used, wherein the leakage detection is mostly carried out by adopting a tracer gas detection method.
However, in the prior art, the use condition of the tracer gas detection method is harsh, the whole pipeline needs to be inflated, the whole pipeline needs to be used in an environment with better surrounding air diffusion condition, otherwise, the tracer gas is easy to gather to cause false alarm, the equipment is large in size and inconvenient to operate, and the leakage detection device of the heat exchange tube of the condenser and the use method thereof are provided for solving the problems.
Disclosure of Invention
The invention aims to provide a leak detection device for a heat exchange tube of a condenser and a use method thereof, which are used for solving the problems that the use condition of the tracer gas detection method provided by the background technology is harsh, the whole pipeline is required to be inflated, the device is required to be used in an environment with good surrounding air diffusion condition, otherwise, the tracer gas is easy to gather to cause false alarm, and the device is large in size and inconvenient to operate.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a condenser heat exchange tube leak hunting device, includes detection mechanism, detection mechanism includes two sets of detection shell, two sets of the equal fixed mounting in one side of detection shell has the fixed ear, two sets of the equal fixed mounting in one side of detection shell has the screw thread post, two sets of the outer wall threaded connection of screw thread post has a set of screw thread seat, two sets of the equal fixed mounting in one side of detection shell has the sealing strip, a set of the outer wall fixed mounting of detection shell has the manometer one, a set of the outer wall fixed mounting of detection shell has the bellows one, two sets of the one side of detection shell is provided with fixture, fixture includes the dead lever, the equal fixed mounting in both ends of dead lever has the connecting rod, two sets of the one end of connecting rod is all rotated and is connected with the clamping lever, two sets of be provided with the connecting plate between the clamping lever, the internal thread connection of connecting plate has a set of hand threaded rod, the one end fixed mounting of threaded rod has hand threaded bolt, two sets of the inside of detection shell is provided with contrast mechanism, two sets of the top of fixed ear all is provided with fixture.
Preferably, the contrast mechanism comprises a contrast pipe, a sealing cover is fixedly arranged at the top of the contrast pipe, a second pressure gauge is arranged at the top of the sealing cover in a penetrating manner, and a second inflatable leather bag is arranged at the top of the sealing cover in a penetrating manner.
Preferably, the outer wall of the comparison tube is in contact with one sides of the two groups of sealing strips, one end of the second pressure gauge is arranged in the comparison tube, and one end of the second inflatable leather bag is arranged in the comparison tube.
Preferably, the two groups of fixing mechanisms comprise fixing pipes, the two groups of fixing pipes are internally provided with limiting rods, the tops of the two groups of limiting rods are fixedly provided with cylinders, one ends of the two groups of limiting rods are rotatably connected with turning bolts, and one ends of the two groups of limiting rods are fixedly provided with springs.
Preferably, the bottoms of the two groups of fixing pipes are respectively and fixedly connected with the tops of the two groups of clamping rods, and one ends of the two groups of limiting rods respectively penetrate through the two groups of fixing lugs.
Preferably, the tops of the two groups of cylinders respectively penetrate through the two groups of fixed pipes, the other ends of the two groups of springs are respectively and fixedly connected with the inner walls of the two groups of fixed pipes, and one sides of the two groups of turning bolts are respectively contacted with the tops of the two groups of fixed pipes.
Preferably, one sides of the two groups of threaded columns are contacted with each other, one sides of the two groups of sealing strips are contacted with each other, and two ends of the connecting plate are respectively connected with one sides of the two groups of clamping rods in a rotating way.
Preferably, one end of the threaded rod is arranged in the fixing rod, one ends of the two groups of clamping rods are fixedly connected with one ends of the two groups of fixing lugs respectively, and one side of the hand shaking bolt is in contact with one side of the fixing rod.
The application method of the condenser heat exchange tube leakage detection device comprises the following steps:
s1, detecting the tightness of a comparison tube;
s11, mounting a sealing cover at one end of a comparison pipe to ensure that the value of the second pressure gauge is the atmospheric pressure value;
s12, repeatedly pinching the inflatable leather bag II, and observing the numerical change of the pressure gauge II;
s13, stopping pinching the inflatable leather bag II, and observing whether the numerical value of the pressure gauge II is stable at a certain numerical value;
s2, detecting the tightness of the two groups of detection shells;
s21, separating two groups of detection shells, and placing a comparison tube with good air tightness between the two groups of detection shells;
s22, rotating the hand-operated bolt to enable the threaded rod to rotate, enabling the threaded rod to drive the connecting plate to move, enabling the two groups of connecting rods to rotate, driving the two groups of clamping rods to rotate, enabling the two groups of clamping rods to drive the two groups of detection shells to approach to the middle position, and enabling one sides of the two groups of sealing strips to closely contact with the outer wall of the comparison pipe;
s23, one sides of the two groups of screw columns are contacted with each other, the screw seat is rotated to enable the two groups of screw columns to be fixed together, and the installation of the two groups of detection shells is completed;
s24, repeatedly pinching the first inflatable leather bag, observing the change of the numerical value of the first pressure gauge, stopping pinching the first inflatable leather bag, and observing whether the numerical value of the first pressure gauge is stable at a certain numerical value to determine whether the air tightness of the two groups of detection shells is good;
s3, detecting the air tightness of the heat exchange tube;
s31, dismantling the comparison tube;
s32, placing two groups of detection shells on the outer wall of the heat exchange tube, and repeating the step S2.
Preferably, in the step S21, before the step of separating the two sets of detection shells, the clamping mechanism and the two sets of detection shells are mounted, and specifically includes the steps of:
s211, moving the two groups of turning bolts to enable one stressed end of the two groups of turning bolts to be in a vertical upward direction, and enabling the two groups of limiting rods to be in an upward shrinking state;
s212, respectively clamping one ends of the two groups of clamping rods at one ends of the two groups of fixing lugs;
s213, turning two groups of turning bolts, wherein one stressed end of the turning bolts is in the horizontal direction, and the two groups of springs are stretched, so that the two groups of limiting rods move downwards and penetrate through the two groups of fixing lugs.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the air tightness of the comparison tube is conveniently detected by arranging the pressure gauge II and the air inflation leather bag II, the air tightness of the two groups of detection shells is conveniently detected by arranging the pressure gauge I and the air inflation leather bag I, the air tightness of the heat exchange tube of the section is conveniently detected, and the device is not easily influenced by the temperature environment in the detection process, and has small volume and convenient and simple operation.
2. According to the invention, by arranging the two groups of turning bolts and the two groups of springs, the two groups of turning bolts are turned, so that one stressed end of the turning bolts is in the horizontal direction, the two groups of turning bolts drive the two groups of cylinders to move downwards, at the moment, the two groups of springs are extended, so that the two groups of limiting rods move downwards and penetrate through the two groups of fixing lugs, the two groups of fixing lugs and the two groups of clamping rods are further fixed, and when the detection shell is damaged, the two groups of detection shells and the clamping rods are conveniently detached, and the detection shell is conveniently replaced.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of a leak detection device for a heat exchange tube of a condenser;
FIG. 2 is a perspective sectional view of a leak detection device for a heat exchange tube of a condenser;
FIG. 3 is a top view of the leak detection device for the heat exchange tube of the condenser;
FIG. 4 is a schematic perspective view of a threaded column and a threaded seat of a leak detection device for a heat exchange tube of a condenser;
FIG. 5 is an exploded view of a three-dimensional structure of a clamping mechanism of a leak detection device for a heat exchange tube of a condenser;
FIG. 6 is an exploded view of a three-dimensional structure of a fixing mechanism of a leak detection device for a heat exchange tube of a condenser;
FIG. 7 is a cross-sectional view of a fixing mechanism of a leak detection device for a heat exchange tube of a condenser;
FIG. 8 is a flow chart of a method of using a leak detection device for a heat exchange tube of a condenser according to the present invention.
In the figure: 1. a detection mechanism; 11. a detection shell; 12. a fixed ear; 13. a threaded column; 14. a screw seat; 15. a sealing strip; 16. a first pressure gauge; 17. the first inflatable leather bag; 2. a clamping mechanism; 21. a fixed rod; 22. a connecting rod; 23. a clamping rod; 24. a connecting plate; 25. a threaded rod; 26. hand shaking bolt; 3. a contrast mechanism; 31. a comparison tube; 32. sealing cover; 33. a second pressure gauge; 34. an inflatable leather bag II; 4. a fixing mechanism; 41. a fixed tube; 42. a limit rod; 43. a cylinder; 44. turning the bolt; 45. and (3) a spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. 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.
Example 1
Referring to fig. 1-5: the utility model provides a condenser heat exchange tube leak hunting device, including detection mechanism 1, detection mechanism 1 includes two sets of detection shells 11, one side of two sets of detection shells 11 is all fixed mounting has fixed ear 12, one side of two sets of detection shells 11 is all fixed mounting has screw thread post 13, the outer wall threaded connection of two sets of screw thread post 13 has a set of screw thread seat 14, one side of two sets of detection shells 11 is all fixed mounting has sealing strip 15, one set of outer wall fixed mounting of detection shells 11 has manometer one 16, one set of outer wall fixed mounting of detection shells 11 has inflatable bladder one 17, one side of two sets of detection shells 11 is provided with fixture 2, fixture 2 includes dead lever 21, both ends of dead lever 21 are all fixed mounting has connecting rod 22, the one end of two sets of connecting rod 22 is all rotated and is connected with clamping lever 23, be provided with connecting plate 24 between two sets of clamping lever 23, the inside threaded rod 25 is connected with one side of connecting plate 24, one end of threaded rod 25 is fixed mounting has a 26, one side of two sets of screw thread post 13 contacts each other, one side of two sets of sealing strip 15 contacts each other, two sets of connecting plate 24 are respectively with one side of clamping lever 23 rotates one side of one end of two sets of clamping lever 23 and is connected with one end of two sets of inner end of fixed connection rod 21 of connecting rod 21, one end of two sets of connecting rod 12 is fixed with one end of fixed connection of two end of fixed connection rod 12 each other;
the inside of two sets of detection shells 11 is provided with contrast mechanism 3, contrast mechanism 3 includes contrast pipe 31, and the top fixed mounting of contrast pipe 31 has sealed lid 32, and pressure gauge two 33 is installed in the top penetration of sealed lid 32, and the top penetration of sealed lid 32 is installed and is inflated leather bag two 34, and the outer wall of contrast pipe 31 contacts each other with one side of two sets of sealing strips 15, and the one end setting of pressure gauge two 33 is in the inside of contrast pipe 31, and the one end setting of inflated leather bag two 34 is in the inside of contrast pipe 31.
In this embodiment, the sealing cover 32 is first installed at one end of the comparison tube 31, the value of the second pressure gauge 33 is ensured to be the atmospheric pressure value, then the second pressure gauge 34 is repeatedly pinched, the change of the value of the second pressure gauge 33 is observed, then the second pressure gauge 34 is stopped being pinched, whether the value of the second pressure gauge 33 is stabilized at a certain value is observed, by arranging the second pressure gauge 33 and the second pressure gauge 34, if the value of the second pressure gauge 33 is fixed at a certain value, the air tightness of the comparison tube 31 is good, and if the value of the second pressure gauge 33 is gradually reduced to the atmospheric pressure value, the air tightness of the comparison tube 31 is bad;
then separating two groups of detection shells 11, placing a comparison tube 31 with good air tightness between the two groups of detection shells 11, then rotating a hand-operated bolt 26 to enable a threaded rod 25 to rotate, enabling the threaded rod 25 to drive a connecting plate 24 to move, enabling two groups of connecting rods 22 to rotate, driving two groups of clamping rods 23 to rotate, enabling the two groups of clamping rods 23 to drive the two groups of detection shells 11 to approach to the middle position, closely contacting the outer wall of the comparison tube 31 at one side of the two groups of sealing strips 15, contacting one side of the two groups of threaded columns 13 at the moment, rotating a threaded seat 14 to enable the two groups of threaded columns 13 to be fixed together, further, the installation of the two groups of detection shells 11 is completed, then the first inflatable leather bag 17 is repeatedly pinched, the value change of the first pressure gauge 16 is observed, then the first inflatable leather bag 17 is stopped being pinched, whether the value of the first pressure gauge 16 is stabilized at a certain value is observed, and by arranging the first pressure gauge 16 and the first inflatable leather bag 17, the air tightness of the comparison tube 31 is good after the detection in advance, if the value of the first pressure gauge 16 is stabilized, the air tightness of the two groups of detection shells 11 is good, and if the value of the first pressure gauge 16 is gradually reduced to the atmospheric pressure, the air tightness of the two groups of detection shells 11 is bad;
then demolish contrast pipe 31, place two sets of detection shells 11 at the outer wall of heat transfer pipe, rotatory hand bolt 26 makes two sets of detection shells 11 press from both sides tightly the outer wall of heat transfer pipe, rotatory screw thread seat 14 is fixed two sets of screw thread post 13, then repeatedly extrude and aerify the leather bag one 17 and observe the numerical variation of pressure gauge one 16, through setting up pressure gauge one 16 and aerify leather bag one 17, stop extrusion and aerify leather bag one 17, if pressure gauge one 16 numerical stability, then the heat transfer pipe gas tightness that represents this section is good, if the numerical value of pressure gauge one 16 gradually reduces to atmospheric pressure numerical value, then it is not good to represent this section's heat transfer pipe gas tightness, be convenient for detect the gas tightness of every section heat transfer pipe, be difficult for receiving temperature environment's influence, the volume is less and convenient operation is simple.
Example 2
As shown in fig. 1, 6 and 7, the two sets of fixing mechanisms 4 each include a fixing tube 41, limiting rods 42 are disposed inside the two sets of fixing tubes 41, tops of the two sets of limiting rods 42 are fixedly provided with cylinders 43, one ends of the two sets of cylinders 43 are rotatably connected with turning bolts 44, one ends of the two sets of limiting rods 42 are fixedly provided with springs 45, bottoms of the two sets of fixing tubes 41 are fixedly connected with tops of the two sets of clamping rods 23 respectively, one ends of the two sets of limiting rods 42 penetrate through the two sets of fixing lugs 12 respectively, tops of the two sets of cylinders 43 penetrate through the two sets of fixing tubes 41 respectively, the other ends of the two sets of springs 45 are fixedly connected with inner walls of the two sets of fixing tubes 41 respectively, and one sides of the two sets of turning bolts 44 are contacted with tops of the two sets of fixing tubes 41 respectively.
In this embodiment, the two sets of turning pins 44 are moved first, so that the stressed ends of the two sets of turning pins 44 are in the vertical upward direction, at this time, the two sets of limiting rods 42 are in the upward shrinking state, then, one ends of the two sets of clamping rods 23 are respectively clamped at one ends of the two sets of fixing lugs 12, by setting the two sets of turning pins 44 and the two sets of springs 45, the two sets of turning pins 44 are turned, so that the stressed ends of the two sets of turning pins 44 are in the horizontal direction, the two sets of turning pins 44 drive the two sets of cylinders 43 to move downwards, at this time, the two sets of springs 45 stretch, so that the two sets of limiting rods 42 move downwards and penetrate through the two sets of fixing lugs 12, thereby realizing the fixation of the two sets of fixing lugs 12 and the two sets of clamping rods 23, and facilitating the disassembly between the two sets of detecting shells 11 and the clamping rods 23 when the detecting shells 11 are damaged, and facilitating the replacement of the detecting shells 11.
Example 3
According to the application method of the leak detection device of the heat exchange tube of the condenser shown in fig. 1-8, the method specifically comprises the following steps:
step one, the tightness of the contrast tube 31 is detected, which comprises the following steps:
(1) A sealing cover 32 is arranged at one end of the comparison pipe 31, so that the value of a second pressure gauge 33 is ensured to be the atmospheric pressure value;
(2) Repeatedly pinching the second inflatable bladder 34, and observing the numerical change of the second pressure gauge 33;
(3) Stopping pinching the second inflatable leather bag 34, and observing whether the value of the second pressure gauge 33 is stable at a certain value;
step two, detecting the tightness of the two groups of detection shells 11, comprising the following steps:
(1) Separating the two groups of detection shells 11, and placing a contrast tube 31 with good air tightness between the two groups of detection shells 11;
wherein before separating the two sets of test shells 11, the steps are as follows:
(11) Moving the two sets of turning pins 44 so that the stressed ends of the two sets of turning pins 44 are in a vertical upward direction, and at the moment, the two sets of limiting rods 42 are in an upward shrinking state;
(12) One ends of two groups of clamping rods 23 are respectively clamped at one ends of two groups of fixing lugs 12;
(13) Turning over the two sets of turning-over pins 44 so that the stressed end of the turning-over pins 44 is in the horizontal direction, and the two sets of springs 45 are stretched so that the two sets of limiting rods 42 move downwards and penetrate through the two sets of fixing lugs 12;
(2) Rotating the hand bolt 26 to enable the threaded rod 25 to rotate, enabling the threaded rod 25 to drive the connecting plate 24 to move, enabling the two groups of connecting rods 22 to rotate and driving the two groups of clamping rods 23 to rotate, enabling the two groups of clamping rods 23 to drive the two groups of detection shells 11 to approach to the middle position, and enabling one sides of the two groups of sealing strips 15 to closely contact with the outer wall of the comparison tube 31;
(3) One sides of the two groups of screw posts 13 are contacted with each other, and the screw base 14 is rotated to fix the two groups of screw posts 13 together, so that the two groups of detection shells 11 are installed;
(4) Repeatedly pinching the first inflatable leather bag 17, observing the value change of the first pressure gauge 16, stopping pinching the first inflatable leather bag 17, and observing whether the value of the first pressure gauge 16 is stable at a certain value to determine whether the air tightness of the two groups of detection shells 11 is good;
step three: detecting the air tightness of the heat exchange tube, comprising the following steps:
(1) Dismantling the contrast tube 31;
(2) And (3) placing two groups of detection shells 11 on the outer wall of the heat exchange tube, repeating the operation of the step two, and detecting the air tightness of the heat exchange tube.
The application method and the working principle of the device are as follows: firstly, a sealing cover 32 is arranged at one end of a comparison tube 31, the value of a second pressure gauge 33 is ensured to be the atmospheric pressure value, then the second pressure gauge 34 is repeatedly pinched, the change of the value of the second pressure gauge 33 is observed, then the second pressure gauge 34 is stopped being pinched, whether the value of the second pressure gauge 33 is stabilized at a certain value is observed, if the value of the second pressure gauge 33 is fixed at a certain value, the air tightness of the comparison tube 31 is good, and if the value of the second pressure gauge 33 is gradually reduced to the atmospheric pressure value, the air tightness of the comparison tube 31 is poor;
firstly, two groups of turning bolts 44 are moved, so that the stressed ends of the two groups of turning bolts 44 are in a vertical upward direction, at the moment, the two groups of limiting rods 42 are in an upward shrinking state, then one ends of the two groups of clamping rods 23 are respectively clamped at one ends of the two groups of fixed lugs 12, the two groups of turning bolts 44 are turned, so that the stressed ends of the turning bolts 44 are in a horizontal direction, the two groups of turning bolts 44 drive the two groups of cylinders 43 to move downwards, at the moment, the two groups of springs 45 are stretched, so that the two groups of limiting rods 42 move downwards and penetrate through the two groups of fixed lugs 12 to fix the two groups of fixed lugs 12 and the two groups of clamping rods 23;
then separating two groups of detection shells 11, placing a comparison tube 31 with good air tightness between the two groups of detection shells 11, rotating a hand bolt 26 to enable a threaded rod 25 to rotate, enabling the threaded rod 25 to drive a connecting plate 24 to move to enable two groups of connecting rods 22 to rotate to drive two groups of clamping rods 23 to rotate, enabling the two groups of clamping rods 23 to drive the two groups of detection shells 11 to approach to the middle position, enabling the outer walls of the comparison tube 31 on one side of two groups of sealing strips 15 to be in close contact, enabling one sides of two groups of threaded columns 13 to be in contact with each other at the moment, rotating a threaded seat 14 to enable the two groups of threaded columns 13 to be fixed together, further completing the installation of the two groups of detection shells 11, repeatedly pinching an inflatable leather bag I17, observing the numerical value change of the pressure gauge I16, stopping pinching the inflatable leather bag I17, observing whether the numerical value of the pressure gauge I16 is stable at a certain numerical value, and because the air tightness of the comparison tube 31 detected in advance is good, if the numerical value of the pressure gauge I16 is stable, indicating that the air tightness of the two groups of detection shells 11 is good, and if the numerical value of the pressure gauge I16 gradually reduces to atmospheric pressure, then indicating that the air tightness of the two groups of detection shells 11 is bad;
then the contrast tube 31 is removed, two groups of detection shells 11 are placed on the outer wall of the heat exchange tube, the hand-operated bolt 26 is rotated to enable the two groups of detection shells 11 to clamp the outer wall of the heat exchange tube, the threaded seat 14 is rotated to fix the two groups of threaded columns 13, then the first inflation leather bag 17 is repeatedly extruded to observe the numerical value change of the first pressure meter 16, the first inflation leather bag 17 is stopped being extruded, if the first pressure meter 16 is stable in numerical value, the heat exchange tube of the section is good in air tightness, and if the first pressure meter 16 is gradually reduced to the atmospheric pressure value, the heat exchange tube of the section is poor in air tightness.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. The utility model provides a condenser heat exchange tube leak hunting device, includes detection mechanism (1), its characterized in that: the detection mechanism (1) comprises two groups of detection shells (11), one side of each detection shell (11) is fixedly provided with a fixed lug (12), one side of each detection shell (11) is fixedly provided with a threaded column (13), the outer walls of the threaded columns (13) are in threaded connection with a group of threaded seats (14), one side of each detection shell (11) is fixedly provided with a sealing strip (15), the outer walls of each detection shell (11) are fixedly provided with a pressure gauge I (16), and the outer walls of the detection shells (11) are fixedly provided with an inflatable leather bag I (17);
two sets of one side of detecting shell (11) is provided with fixture (2), fixture (2) are including dead lever (21), the equal fixed mounting in both ends of dead lever (21) has connecting rod (22), two sets of the equal rotation of one end of connecting rod (22) is connected with clamping lever (23), two sets of be provided with connecting plate (24) between clamping lever (23), the internal thread connection of connecting plate (24) has threaded rod (25), the one end fixed mounting of threaded rod (25) has hand bolt (26), two sets of the inside of detecting shell (11) is provided with contrast mechanism (3), two sets of the top of fixed ear (12) all is provided with fixture (4).
2. The condenser heat exchange tube leak detection device according to claim 1, wherein: the contrast mechanism (3) comprises a contrast pipe (31), a sealing cover (32) is fixedly arranged at the top of the contrast pipe (31), a pressure gauge II (33) is arranged at the top of the sealing cover (32) in a penetrating manner, and an inflatable leather bag II (34) is arranged at the top of the sealing cover (32) in a penetrating manner.
3. The condenser heat exchange tube leak detection device according to claim 2, wherein: the outer wall of the comparison tube (31) is in contact with one sides of the two groups of sealing strips (15), one end of the second pressure gauge (33) is arranged in the comparison tube (31), and one end of the second inflatable leather bag (34) is arranged in the comparison tube (31).
4. The condenser heat exchange tube leak detection device according to claim 1, wherein: the two groups of fixing mechanisms (4) comprise fixing pipes (41), limiting rods (42) are arranged in the fixing pipes (41), cylinders (43) are fixedly installed at the tops of the two groups of limiting rods (42), turning bolts (44) are rotatably connected to one ends of the cylinders (43), and springs (45) are fixedly installed at one ends of the limiting rods (42).
5. The condenser heat exchange tube leak detection device as defined in claim 4, wherein: the bottoms of the two groups of fixing pipes (41) are fixedly connected with the tops of the two groups of clamping rods (23) respectively, and one ends of the two groups of limiting rods (42) penetrate through the two groups of fixing lugs (12) respectively.
6. The condenser heat exchange tube leak detection device as defined in claim 4, wherein: the tops of the two groups of cylinders (43) respectively penetrate through the two groups of fixed pipes (41), the other ends of the two groups of springs (45) are respectively and fixedly connected with the inner walls of the two groups of fixed pipes (41), and one sides of the two groups of turning bolts (44) are respectively contacted with the tops of the two groups of fixed pipes (41).
7. The condenser heat exchange tube leak detection device according to claim 1, wherein: one sides of the two groups of threaded columns (13) are in contact with each other, one sides of the two groups of sealing strips (15) are in contact with each other, and two ends of the connecting plate (24) are respectively connected with one sides of the two groups of clamping rods (23) in a rotating mode.
8. The condenser heat exchange tube leak detection device according to claim 1, wherein: one end of the threaded rod (25) is arranged in the fixing rod (21), one ends of the two groups of clamping rods (23) are fixedly connected with one ends of the two groups of fixing lugs (12) respectively, and one side of the hand shaking bolt (26) is in contact with one side of the fixing rod (21).
9. The method for using the condenser heat exchange tube leakage detection device is characterized by using the condenser heat exchange tube leakage detection device as claimed in any one of claims 1-8, and comprises the following steps:
s1, detecting the tightness of a comparison tube;
s11, mounting a sealing cover at one end of a comparison pipe to ensure that the value of the second pressure gauge is the atmospheric pressure value;
s12, repeatedly pinching the inflatable leather bag II, and observing the numerical change of the pressure gauge II;
s13, stopping pinching the inflatable leather bag II, and observing whether the numerical value of the pressure gauge II is stable at a certain numerical value;
s2, detecting the tightness of the two groups of detection shells;
s21, separating two groups of detection shells, and placing a comparison tube with good air tightness between the two groups of detection shells;
s22, rotating the hand-operated bolt to enable the threaded rod to rotate, enabling the threaded rod to drive the connecting plate to move, enabling the two groups of connecting rods to rotate, driving the two groups of clamping rods to rotate, enabling the two groups of clamping rods to drive the two groups of detection shells to approach to the middle position, and enabling one sides of the two groups of sealing strips to closely contact with the outer wall of the comparison pipe;
s23, one sides of the two groups of screw columns are contacted with each other, the screw seat is rotated to enable the two groups of screw columns to be fixed together, and the installation of the two groups of detection shells is completed;
s24, repeatedly pinching the first inflatable leather bag, observing the change of the numerical value of the first pressure gauge, stopping pinching the first inflatable leather bag, and observing whether the numerical value of the first pressure gauge is stable at a certain numerical value to determine whether the air tightness of the two groups of detection shells is good;
s3, detecting the air tightness of the heat exchange tube;
s31, dismantling the comparison tube;
s32, placing two groups of detection shells on the outer wall of the heat exchange tube, and repeating the step S2.
10. The method for using a leak detection device for a heat exchange tube of a condenser according to claim 9, wherein in the step S21, before the step of separating two sets of detection shells, the clamping mechanism and the two sets of detection shells are installed, specifically comprising the steps of:
s211, moving the two groups of turning bolts to enable one stressed end of the two groups of turning bolts to be in a vertical upward direction, and enabling the two groups of limiting rods to be in an upward shrinking state;
s212, respectively clamping one ends of the two groups of clamping rods at one ends of the two groups of fixing lugs;
s213, turning two groups of turning bolts, wherein one stressed end of the turning bolts is in the horizontal direction, and the two groups of springs are stretched, so that the two groups of limiting rods move downwards and penetrate through the two groups of fixing lugs.
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| CN202311075852.2A CN117073932A (en) | 2023-08-25 | 2023-08-25 | Leakage detection device for heat exchange tube of condenser and use method of leakage detection device |
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| CN202311075852.2A CN117073932A (en) | 2023-08-25 | 2023-08-25 | Leakage detection device for heat exchange tube of condenser and use method of leakage detection device |
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