CN116929660B - Leak detection device for barrel helium and leak detection method thereof - Google Patents
Leak detection device for barrel helium and leak detection method thereof Download PDFInfo
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- CN116929660B CN116929660B CN202311188379.9A CN202311188379A CN116929660B CN 116929660 B CN116929660 B CN 116929660B CN 202311188379 A CN202311188379 A CN 202311188379A CN 116929660 B CN116929660 B CN 116929660B
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- 238000001514 detection method Methods 0.000 title claims abstract description 99
- 239000001307 helium Substances 0.000 title claims abstract description 68
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 68
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000005192 partition Methods 0.000 claims abstract description 18
- 230000017105 transposition Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 77
- 230000000903 blocking effect Effects 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 21
- 230000003068 static effect Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/226—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a leak detection device and a leak detection method for barrel helium, and relates to the technical field of helium leak detection. According to the invention, the transposition support connector is arranged, when the barrel body completely enters the detection cover, the top of the barrel body is attached to the bottom of the annular partition plate, at the moment, the bottom of the barrel body is contacted with the roller, the reciprocating screw rod can be driven to rotate when the motor operates, the sliding block extrudes the shifting block through the inclined ejector rod, the transposition spring stretches at the moment, the shifting block moves towards a position far away from the circle center of the cover plate, and similarly, when the sliding block moves downwards relative to the support guide frame, the shifting block moves towards the circle center of the cover plate, so that the support position of the bottom of the barrel body can be changed, the bottom of the barrel body is prevented from being blocked to influence the detection effect, and the detection accuracy is improved.
Description
Technical Field
The invention relates to the technical field of helium leakage detection, in particular to a leakage detection device for barrel helium and a leakage detection method thereof.
Background
Since many chemicals such as pesticides and chemical solvents must be stored in a sealed environment due to requirements of safety, environmental protection and the like, the sealing performance of steel barrels for containing various chemicals is very important, and the steel barrels are generally detected by helium mass spectrum leak detection technology.
According to the 'bucket helium leakage detection device' with the bulletin number of 'CN 111649878B' disclosed by the Chinese patent network, the device comprises a frame, a leakage detection cover, a vacuum pump, a helium leakage detector, a workbench and a lifting mechanism, wherein the leakage detection cover is arranged at the upper end of the front side of the frame and is connected with the vacuum pump and the helium leakage detector; the structure is simple and reasonable, and the device can be applied to industrial production line.
Although accessible vacuum pump, helium leak detector detect the staving in the above-mentioned patent, and need place the staving on the workstation when detecting, just so can lead to the bottom of staving to receive sheltering from, when the crack exists in the staving bottom, helium in the staving just can't be discharged through the staving bottom, leads to unable detection staving bottom, leads to the fact the influence to the detection accuracy of staving, needs in addition to fill a large amount of helium in the staving that is detected and detects, so can cause the helium consumption big, the detection cost is high, and cause the helium extravagant easily.
Disclosure of Invention
The invention aims at: in order to solve the problems that the bottom of the barrel body is blocked to influence the detection effect and the amount of helium consumed in detection is large, the leakage detection device and the leakage detection method for the barrel body helium are provided.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a leak hunting detection device that staving helium was used, includes the detection cover, the support frame is installed to the outer wall of detection cover, the first cylinder that is located the detection cover outside is installed to the inboard of support frame, the output of first cylinder is connected with the apron, and the apron is located the below of detection cover, the second cylinder that is located first cylinder one side is installed to the outside of support frame, the top of apron is provided with transposition support connector, the staving has been placed through transposition support connector in the top of apron, the helium detector is installed to the outer wall of detection cover, the detection cover is kept away from the outer wall of helium detector and is installed the air pump, the inner wall of detection cover is fixed with annular baffle, the output of second cylinder is provided with the quantitative accuse gas spare that links to each other with annular baffle, and quantitative accuse gas spare is used for controlling the volume of detecting required helium, the bottom of annular baffle is provided with and links to each other with the apron, and is used for carrying out spacing blocking the position spare to the staving;
the transposition support connector comprises a support guide frame fixed at the top of a cover plate, a placement plate is fixed at the top end of the support guide frame, a chute penetrating to the bottom of the placement plate is formed in the top of the placement plate, a shifting block is slidably connected to the inner side of the chute, a connecting spring connected with the inner wall of the chute is arranged on one side of the shifting block, a roller is rotatably connected to the top of the shifting block through a bearing, a motor is mounted at the bottom of the cover plate, a reciprocating screw is connected to the output end of the motor, the reciprocating screw is located on the inner side of the support guide frame, a sliding block is sleeved on the outer side of the reciprocating screw, an oblique ejector rod is rotatably connected to the outer side of the sliding block through a rotating shaft, and one end of the oblique ejector rod, away from the sliding block, is rotatably connected with the shifting block through the rotating shaft.
As still further aspects of the invention: the inner side of the sliding block is provided with a crescent pin matched with the outer side of the reciprocating screw rod, the sliding block is slidably connected to the inner side of the supporting guide frame, the number of the sliding grooves and the number of the shifting blocks are multiple, and the sliding grooves and the shifting blocks are distributed at equal intervals along the circle center of the cover plate.
As still further aspects of the invention: the quantitative air control piece is including installing in the connecting plate of second cylinder output, the bottom of connecting plate is provided with the push rod that runs through to detecting the cover inboard, the valve is installed on the top of push rod, the bottom of push rod is fixed with the first closing plate that is located annular baffle inboard, the bottom of first closing plate is provided with the gas connecting pipe, the bottom of gas connecting pipe sets up in the second closing plate, and the second closing plate is located the inboard of annular baffle, the gas vent has been seted up at the top of second closing plate, and the gas vent runs through the second closing plate, the inboard grafting of gas vent has the cock stem that runs through to first closing plate top, the top of cock stem is fixed with the connecting rod, and the connecting rod extends to detecting the top of cover, the top of connecting rod is fixed with the screens board, and the push rod runs through the below of screens board from the top of screens board, and the top of first closing plate is provided with the reset spring that links to each other with the connecting rod bottom.
As still further aspects of the invention: the diameter of the first sealing plate and the diameter of the second sealing plate are equal to the diameter of the inner wall of the barrel body, and sealing gaskets are arranged at the bottom of the annular partition plate, at the outer side of the first sealing plate and at the outer side of the second sealing plate.
As still further aspects of the invention: the blocking piece comprises an arc-shaped blocking plate inserted at the top of the placing plate, the arc-shaped blocking plate and the chute are arranged in a staggered way, a connecting ring is fixed at the bottom of the arc-shaped blocking plate and positioned below the placing plate, a pushing spring connected with the top of the cover plate is arranged at the bottom of the connecting ring, a fixed rod is fixed at the bottom of the annular partition plate and positioned above the arc-shaped blocking plate, the bottom of apron is provided with even storehouse, even storehouse is located one side of motor, the battery is installed to the bottom in even storehouse, even the bottom of position ring is fixed with and runs through to even inboard the linking piece pole in storehouse, even the bottom of piece pole is provided with and is located the inboard movable contact piece in storehouse, even the inboard in storehouse is installed the static contact piece, and the static contact piece is located the below of movable contact piece.
As still further aspects of the invention: the movable contact piece is electrically connected with the motor through a wire, and the static contact piece is electrically connected with the storage battery through a wire.
As still further aspects of the invention: the width of the arc-shaped baffle plate is larger than the diameter of the fixed rod, and the inner radian of the arc-shaped baffle plate is equal to the radian of the outer wall of the barrel body.
As still further aspects of the invention: the top of detection cover is provided with the through-hole that is greater than the connecting rod diameter.
The invention also discloses a leak detection method for the barrel helium, which adopts the leak detection device for the barrel helium and comprises the following steps:
s1: when the barrel body is detected, the barrel body is firstly placed at the top of the roller, the barrel body can be limited through the arc-shaped baffle plate, then the first air cylinder is started, and the cover plate drives the barrel body to move upwards through the shrinkage of the first air cylinder;
s2: the fixed rod can block the arc-shaped baffle along with the upward movement of the barrel body, at the moment, the barrel body can move relative to the placement plate by continuing to move upwards, so that the arc-shaped baffle can be separated from the outer wall of the barrel body, when the barrel body completely enters the detection cover, the arc-shaped baffle is flush with the top of the placement plate under the block of the fixed rod, so that the arc-shaped baffle is prevented from shielding the outer wall of the barrel body, and meanwhile, the movable contact piece can also contact with the static contact piece along with the downward movement of the arc-shaped baffle, so that the storage battery can supply power to the motor;
s3: when the motor operates, the reciprocating screw rod can be driven to rotate, the sliding block can reciprocate up and down along the reciprocating screw rod, when the sliding block moves up relative to the supporting guide frame, the sliding block can extrude the shifting block through the inclined ejector rod, the connecting spring stretches at the same time, the shifting block moves towards a position far away from the circle center of the cover plate, and when the sliding block moves down relative to the supporting guide frame, the shifting block moves towards the circle center of the cover plate under the cooperation of the connecting spring and the sliding block, so that the supporting position of the bottom of the barrel body can be changed, the bottom of the barrel body is prevented from being shielded to influence the detection effect, and the detection accuracy is improved;
s4: then starting an air pump, enabling a cavity of the inner wall between the barrel body and the detection cover to be in a vacuum state through the operation of the air pump, and then opening a helium detector;
s5: then helium is injected between the first sealing plate and the second sealing plate through the valve and the push rod, and then the second cylinder is started to enable the first sealing plate and the second sealing plate to enter the barrel body through shrinkage of the second cylinder, and at the moment, the inner wall of the detection cover and the outer wall of the barrel body are in a vacuum state;
s6: if the side wall of the barrel body is provided with a crack, helium between the first sealing plate and the second sealing plate is discharged through the crack of the side wall of the barrel body under the action of pressure, the side wall of the barrel body is detected in all directions along with the downward movement of the push rod, when the connecting rod moves to the lowest position, the plug can be separated from the air entraining hole along with the downward movement of the second sealing plate, part of helium between the first sealing plate and the second sealing plate can diffuse to the lower part of the second sealing plate, so that the bottom of the inner wall of the barrel body is detected, and in the process, less helium is needed to detect the barrel body, so that the operation is simple, and meanwhile, the quantity of helium required for detection is reduced.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up the transposition prop connector, when the staving fully gets into the detection cover, the bottom of staving just can laminate with annular baffle's bottom mutually, the bottom of staving is contacted with the gyro wheel this moment, can drive reciprocating screw rod and rotate when the motor is operated, the slider can extrude the shifting block through the oblique ejector pin, even the position spring stretches this moment, the shifting block just can move towards the position that keeps away from the apron centre of a circle simultaneously, in the same way, when the slider moves down relative to the support guide frame, the shifting block just can move towards the centre of a circle of apron, so alright change the support position of staving bottom, thereby prevent that the bottom of staving from receiving and sheltering from and influence the measuring effect, the rate of accuracy of detection has been improved;
2. through setting up quantitative gas control piece, after the staving fully gets into the detection cover, the top of staving is laminated with the bottom of annular baffle mutually, afterwards pour into helium between first closing plate and the second closing plate through valve, push rod, then start second cylinder and make first closing plate, the second closing plate get into the staving through the shrink of second cylinder, because the inner wall of detection cover and the outer wall of staving are vacuum state at this moment, if the lateral wall of staving has the crack, helium between first closing plate, the second closing plate is discharged through the crack of staving lateral wall at this moment under the effect of pressure, move down along with the push rod and carry out the omnidirectional to the lateral wall of staving, when the connecting rod moves to the bottom, can make plug and bleed hole along with the lower of second closing plate, partial helium between first closing plate and the second closing plate just can diffuse to the below of second closing plate, so detect the inner wall bottom of staving, the process only needs less helium to detect the staving, easy operation has reduced the quantity of helium that detects simultaneously;
3. through setting up the position spare, when placing the staving in the top of apron, the accessible arc resistive plate is spacing to the staving, thereby increase the stability of staving in-process that moves up, can make to decide the pole and hinder the arc resistive plate along with the upward movement of staving, the staving continues to move up and just makes the arc resistive plate place the board relatively this moment and remove, so alright make arc resistive plate and staving outer wall separation, when the staving fully gets into the detection cover, the arc resistive plate is with the top parallel and level of placing the board under the hindrance of deciding the pole, thereby prevent that the arc resistive plate from causing the shielding to the outer wall of staving, the movable contact piece also can move down along with the arc resistive plate and contact with the static contact piece simultaneously, so alright make the battery carry out the power supply processing for the motor, thereby control the operation opportunity of motor, for the detection of follow-up staving has provided convenience.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the test cover according to the present invention;
FIG. 3 is a schematic view illustrating the connection of a first sealing plate and a second sealing plate according to the present invention;
FIG. 4 is a schematic diagram illustrating the connection of the tub and the cover plate according to the present invention;
FIG. 5 is a schematic diagram of the connection of the motor to the placement plate of the present invention;
FIG. 6 is a schematic view of a stopper according to the present invention;
FIG. 7 is a schematic diagram of the internal structure of the connecting bin of the invention;
fig. 8 is a schematic diagram illustrating connection between the detection cover and the tub body according to the present invention.
In the figure: 1. a detection cover; 2. a tub body; 3. a support frame; 4. a cover plate; 5. a helium detector; 6. an air pump; 701. placing a plate; 702. a first cylinder; 703. a second cylinder; 704. a connecting plate; 705. a clamping plate; 706. a valve; 707. a push rod; 708. a connecting rod; 709. an annular partition plate; 710. a fixed rod; 711. a movable connecting contact piece; 712. a first sealing plate; 713. a second sealing plate; 714. a return spring; 715. a connecting pipe; 716. an air vent; 717. a plug; 718. a connecting ring; 719. a push spring; 720. a support guide frame; 721. a motor; 722. a storage battery; 723. connecting bins; 724. an arc-shaped baffle plate; 725. a slide block; 726. a reciprocating screw rod; 727. an inclined ejector rod; 728. a connecting spring; 729. a chute; 730. a roller; 731. a connecting rod; 732. a stationary contact; 733. and (5) shifting the block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
Referring to fig. 1-8, in an embodiment of the invention, a leak detection device for tank helium includes a detection cover 1, a support frame 3 is installed on an outer wall of the detection cover 1, a first cylinder 702 located outside the detection cover 1 is installed on an inner side of the support frame 3, an output end of the first cylinder 702 is connected with a cover plate 4, the cover plate 4 is located below the detection cover 1, a second cylinder 703 located at one side of the first cylinder 702 is installed on an outer side of the support frame 3, a transposition support connector is arranged at a top of the cover plate 4, a tank 2 is placed at a top of the cover plate 4 through the transposition support connector, a helium detector 5 is installed on an outer wall of the detection cover 1, an air pump 6 is installed on an outer wall of the detection cover 1 far away from the helium detector 5, an annular partition 709 is fixed on an inner wall of the detection cover 1, a quantitative air control piece connected with the annular partition 709 is arranged at an output end of the second cylinder 703, and the bottom of the annular partition 709 is provided with a blocking piece connected with the cover plate 4 and used for limiting the tank 2.
In this embodiment: when detecting staving 2, will need detect staving 2 earlier place in the top of apron 4 through transposition prop even, it is spacing to the staving 2 of placing through blocking the position spare this moment, then start first cylinder 702, shrink through first cylinder 702 drives and makes apron 4 drive staving 2 and shift up, when staving 2 gets into in detecting cover 1 completely, it loses the spacing to staving 2 to block the position spare, transposition prop even carries out the operation simultaneously, afterwards start air pump 6, make the cavity of staving 2 and detecting the inner wall between cover 1 be the vacuum state through the operation of air pump 6, then open helium detector 5, afterwards detect staving 2 through the cooperation between second cylinder 703 and the ration accuse gas spare.
Referring to fig. 1, 4 and 5, the transposition prop comprises a support guide frame 720 fixed at the top of a cover plate 4, a placing plate 701 is fixed at the top of the support guide frame 720, a chute 729 penetrating to the bottom of the placing plate 701 is arranged at the top of the placing plate 701, a shift block 733 is slidably connected to the inner side of the chute 729, a connecting spring 728 connected with the inner wall of the chute 729 is arranged at one side of the shift block 733, a roller 730 is rotatably connected to the top of the shift block 733 through a bearing, a motor 721 is mounted at the bottom of the cover plate 4, a reciprocating screw 726 is connected to the output end of the motor 721, the reciprocating screw 726 is located at the inner side of the support guide frame 720, a sliding block 725 is sleeved on the outer side of the reciprocating screw 726, an oblique top rod 727 is rotatably connected to the outer side of the sliding block 725 through a rotating shaft, and one end of the oblique top rod 727 away from the sliding block 725 is rotatably connected to the shift block 733 through the rotating shaft.
In this embodiment: when the barrel body 2 completely enters the detection cover 1, the top of the barrel body 2 is attached to the bottom of the annular partition 709, at the moment, the bottom of the barrel body 2 is in contact with the roller 730, the motor 721 can drive the reciprocating screw rod 726 to rotate, at the moment, the sliding block 725 can reciprocate up and down along the reciprocating screw rod 726, when the sliding block 725 moves up relative to the support guide frame 720, the sliding block 725 extrudes the shifting block 733 through the inclined ejector rod 727, at the moment, the connecting spring 728 stretches, and meanwhile, the shifting block 733 moves towards a position far away from the center of the cover plate 4.
Referring to fig. 5, a crescent pin matched with the outer side of the reciprocating screw rod 726 is disposed on the inner side of the sliding block 725, the sliding block 725 is slidably connected to the inner side of the supporting guide frame 720, a plurality of sliding grooves 729 and shifting blocks 733 are disposed, and the sliding grooves 729 and shifting blocks 733 are distributed at equal intervals along the circle center of the cover plate 4.
In this embodiment: through setting up this structure and can make reciprocating screw 726 carry out reciprocating motion along reciprocating screw 726 when rotating slider 725 to this increases the stability that slider 725 moved, carries out stable support to staving 2 bottom through equidistance setting up a plurality of spouts 729, shifting piece 733 simultaneously.
Referring to fig. 1, 2, 3 and 8, the quantitative air control member includes a connecting plate 704 mounted at an output end of a second air cylinder 703, a push rod 707 penetrating through an inner side of a detection cover 1 is disposed at a bottom of the connecting plate 704, a valve 706 is mounted at a top end of the push rod 707, a first sealing plate 712 located inside of an annular partition 709 is fixed at a bottom of the push rod 707, an air connecting pipe 715 is disposed at a bottom of the first sealing plate 712, a bottom end of the air connecting pipe 715 is disposed at a second sealing plate 713, the second sealing plate 713 is located inside of the annular partition 709, a gas introducing hole 716 is formed at a top of the second sealing plate 713, the gas introducing hole 716 penetrates through the second sealing plate 713, a plug column 717 penetrating through an upper side of the first sealing plate 712 is inserted into an inner side of the gas introducing hole 716, a connecting rod 708 is fixed at a top end of the plug column 717, the connecting rod 708 extends to a top of the detection cover 1, a clamping plate 705 is fixed at a top of the connecting rod 708, the push rod 707 penetrates a lower side of the clamping plate 705 from an upper side of the clamping plate 705, and a reset spring connected to a bottom of the connecting rod 708 is disposed at a top of the first sealing plate.
In this embodiment: after the barrel body 2 completely enters the detection cover 1, the top of the barrel body 2 is attached to the bottom of the annular partition 709, helium is injected between the first sealing plate 712 and the second sealing plate 713 through the valve 706 and the push rod 707, then the second cylinder 703 is started to enable the first sealing plate 712 and the second sealing plate 713 to enter the barrel body 2 through shrinkage of the second cylinder 703, at the moment, as the inner wall of the detection cover 1 and the outer wall of the barrel body 2 are in a vacuum state, if the side wall of the barrel body 2 is provided with cracks, helium between the first sealing plate 712 and the second sealing plate 713 is discharged through the cracks of the side wall of the barrel body 2 under the action of pressure, the side wall of the barrel body 2 is detected in an omnibearing manner along with the downward movement of the push rod 707, when the connecting rod 708 is moved to the lowest position, the plug column 717 and the air entraining hole 716 can be separated along with the downward movement of the second sealing plate 713, and part of helium between the first sealing plate 712 and the second sealing plate 713 can be diffused to the lower part of the second sealing plate 713, so that the bottom of the inner wall of the barrel body 2 is detected, in this process, less helium is needed to be detected, and the operation is simple to detect the barrel body 2, and the required helium is detected, and the quantity is reduced.
Referring to fig. 8, the diameters of the first sealing plate 712 and the second sealing plate 713 are equal to the diameter of the inner wall of the barrel 2, and sealing gaskets are disposed at the bottom of the annular partition 709, at the outer side of the first sealing plate 712, and at the outer side of the second sealing plate 713.
In this embodiment: by providing this structure, sealability between the first sealing plate 712, the second sealing plate 713, the annular partition 709, and the tub 2 is increased, thereby improving accuracy of detection.
Referring to fig. 4, 5, 6 and 7, the blocking member includes an arc-shaped blocking plate 724 inserted at the top of the placing plate 701, the arc-shaped blocking plate 724 and the chute 729 are staggered, a connecting ring 718 is fixed at the bottom of the arc-shaped blocking plate 724, the connecting ring 718 is located below the placing plate 701, a pushing spring 719 connected with the top of the cover plate 4 is arranged at the bottom of the connecting ring 718, a fixed rod 710 is fixed at the bottom of the annular partition plate 709, the fixed rod 710 is located above the arc-shaped blocking plate 724, a connecting bin 723 is arranged at the bottom of the cover plate 4, the connecting bin 723 is located at one side of the motor 721, a storage battery 722 is mounted at the bottom of the connecting bin 723, a connecting rod 731 penetrating to the inner side of the connecting bin 723 is fixed at the bottom of the connecting rod 718, a movable connecting piece 711 located at the inner side of the connecting bin 723 is arranged at the bottom of the connecting rod 731, a static contact 732 is mounted at the inner side of the connecting bin 723, and the static contact 732 is located below the movable connecting piece 711.
In this embodiment: when the barrel body 2 is placed above the cover plate 4, the barrel body 2 can be limited through the arc-shaped baffle 724, so that the stability of the barrel body 2 in the upward moving process is improved, the fixed rod 710 can block the arc-shaped baffle 724 along with the upward movement of the barrel body 2, at the moment, the barrel body 2 can move upwards to enable the arc-shaped baffle 724 to move relative to the placement plate 701, so that the arc-shaped baffle 724 is separated from the outer wall of the barrel body 2, when the barrel body 2 completely enters the detection cover 1, the arc-shaped baffle 724 is flush with the top of the placement plate 701 under the blocking of the fixed rod 710, the blocking of the arc-shaped baffle 724 on the outer wall of the barrel body 2 is prevented, meanwhile, the movable connecting contact 711 can also contact the static contact 732 along with the downward movement of the arc-shaped baffle 724, so that the storage battery 722 can supply power to the motor 721, so that the operation time of the motor 721 is controlled, and convenience is provided for the detection of the subsequent barrel body 2.
Referring to fig. 5, 6 and 7, the movable contact 711 is electrically connected to the motor 721 via a wire, and the stationary contact 732 is electrically connected to the battery 722 via a wire.
In this embodiment: by providing this structure, the battery 722 supplies power to the motor 721 when the movable contact 711 contacts the stationary contact 732, thereby precisely controlling the operation time of the motor 721.
Referring to fig. 6, the width of the arc-shaped blocking plate 724 is larger than the diameter of the fixed rod 710, and the inner arc of the arc-shaped blocking plate 724 is equal to the outer arc of the tub 2.
In this embodiment: when the arc-shaped baffle 724 is pressed by the fixed rod 710, the fixed rod 710 is contacted with the outer wall of the barrel body 2, so that the fixed rod 710 is prevented from shielding the outer wall of the barrel body 2.
Referring to fig. 1 and 2, the top of the detecting cover 1 is provided with a through hole larger than the diameter of the connecting rod 708.
In this embodiment: by providing this structure, the friction force between the link 708 and the detection hood 1 is reduced.
The following provides a leak detection method for the barrel helium by combining the leak detection device for the barrel helium, which specifically comprises the following steps:
s1: when the barrel 2 is detected, the barrel 2 is firstly placed on the top of the roller 730, the barrel 2 can be limited through the arc-shaped baffle 724 at the moment, then the first cylinder 702 is started, and the cover plate 4 drives the barrel 2 to move upwards through the contraction of the first cylinder 702;
s2: along with the upward movement of the barrel body 2, the fixed rod 710 can block the arc-shaped blocking plate 724, at the moment, the barrel body 2 can move upwards continuously to enable the arc-shaped blocking plate 724 to move relative to the placing plate 701, so that the arc-shaped blocking plate 724 can be separated from the outer wall of the barrel body 2, when the barrel body 2 completely enters the detection cover 1, the arc-shaped blocking plate 724 is flush with the top of the placing plate 701 under the block of the fixed rod 710, so that the arc-shaped blocking plate 724 can be prevented from shielding the outer wall of the barrel body 2, and meanwhile, the movable contact piece 711 can also contact with the static contact piece 732 along with the downward movement of the arc-shaped blocking plate 724, so that the storage battery 722 can supply power to the motor 721;
s3: when the motor 721 operates, the reciprocating screw rod 726 can be driven to rotate, at the moment, the sliding block 725 can reciprocate up and down along the reciprocating screw rod 726, when the sliding block 725 moves up relative to the supporting guide frame 720, the sliding block 725 can extrude the shifting block 733 through the inclined ejector rod 727, at the moment, the connecting spring 728 stretches, meanwhile, the shifting block 733 can move towards a position far away from the circle center of the cover plate 4, and similarly, when the sliding block 725 moves down relative to the supporting guide frame 720, the shifting block 733 can move towards the circle center of the cover plate 4 under the cooperation of the connecting spring 728 and the sliding block 725, so that the supporting position of the bottom of the barrel 2 can be changed, the bottom of the barrel 2 is prevented from being blocked, the detection effect is prevented from being influenced, and the detection accuracy is improved;
s4: then starting the air pump 6, enabling the cavity of the inner wall between the barrel body 2 and the detection cover 1 to be in a vacuum state through the operation of the air pump 6, and then opening the helium detector 5;
s5: helium gas is injected between the first sealing plate 712 and the second sealing plate 713 through the valve 706 and the push rod 707, and then the second cylinder 703 is started to enable the first sealing plate 712 and the second sealing plate 713 to enter the barrel body 2 through the contraction of the second cylinder 703, and at this time, a vacuum state is formed between the inner wall of the detection cover 1 and the outer wall of the barrel body 2;
s6: if the side wall of the barrel body 2 has a crack, helium between the first sealing plate 712 and the second sealing plate 713 is discharged through the crack of the side wall of the barrel body 2 under the action of pressure, the side wall of the barrel body 2 is detected in all directions along with the downward movement of the push rod 707, when the connecting rod 708 moves to the lowest position, the plug 717 and the air entraining hole 716 can be separated along with the downward movement of the second sealing plate 713, part of helium between the first sealing plate 712 and the second sealing plate 713 can diffuse to the lower part of the second sealing plate 713, so that the bottom of the inner wall of the barrel body 2 is detected, less helium is needed to detect the barrel body 2 in the process, the operation is simple, and the amount of helium required for detection is reduced.
The foregoing description 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 solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a leak hunting detection device that staving helium was used, includes detection cover (1), its characterized in that, support frame (3) are installed to the outer wall of detection cover (1), first cylinder (702) that is located the outside of detection cover (1) are installed to the inboard of support frame (3), the output of first cylinder (702) is connected with apron (709), and apron (4) are located the below of detection cover (1), second cylinder (703) that is located first cylinder (702) one side are installed to the outside of support frame (3), the top of apron (4) is provided with the transposition and props the connector, barrel (2) have been placed through the transposition props the connector in the top of apron (4), helium detector (5) are installed to the outer wall of detection cover (1), air pump (6) are installed to the outer wall that is kept away from helium detector (5) to detection cover (1), the inner wall of detection cover (1) is fixed with annular baffle (709), the output of second cylinder (703) is provided with the quantitative control piece that links to each other with annular baffle (709), and the required quantity of control piece that detects to carry out the annular baffle (709 is used for carrying out the position control to the annular baffle (2);
the transposition prop connector comprises a supporting guide frame (720) fixed at the top of a cover plate (4), a placing plate (701) is fixed at the top of the supporting guide frame (720), a sliding groove (729) penetrating through the bottom of the placing plate (701) is formed in the top of the placing plate (701), a shifting block (733) is connected to the inner side of the sliding groove (729) in a sliding mode, a connecting spring (728) connected with the inner wall of the sliding groove (729) is arranged on one side of the shifting block (733), a roller (730) is connected to the top of the shifting block (733) in a rotating mode through a bearing, a motor (721) is mounted at the bottom of the cover plate (4), a reciprocating screw (726) is connected to the output end of the motor (721), the reciprocating screw (726) is located on the inner side of the supporting guide frame (720), a sliding block (725) is sleeved on the outer side of the reciprocating screw (726), an oblique top rod (727) is connected to the outer side of the sliding block (725) in a rotating mode through a rotating shaft, and one end of the oblique top rod (727) away from the sliding block (725) is connected with the shifting block (733) in a rotating mode.
2. The leak detection device for the helium in the barrel body according to claim 1, wherein crescent pins matched with the outer side of the reciprocating screw rod (726) are arranged on the inner side of the sliding block (725), the sliding block (725) is slidably connected to the inner side of the supporting guide frame (720), a plurality of sliding grooves (729) and shifting blocks (733) are arranged, and the sliding grooves (729) and the shifting blocks (733) are distributed at equal intervals along the circle center of the cover plate (4).
3. The leak detection device for the helium in the barrel body according to claim 2, wherein the quantitative gas control piece comprises a connecting plate (704) arranged at the output end of a second cylinder (703), a push rod (707) penetrating through the inner side of a detection cover (1) is arranged at the bottom of the connecting plate (704), a valve (706) is arranged at the top end of the push rod (707), a first sealing plate (712) positioned at the inner side of an annular partition plate (709) is fixed at the bottom of the push rod (707), a gas connecting pipe (715) is arranged at the bottom of the first sealing plate (712), the bottom end of the gas connecting pipe (715) is arranged at a second sealing plate (713), the second sealing plate (713) is positioned at the inner side of the annular partition plate (709), a gas guiding hole (716) is formed at the top of the second sealing plate (713), a plug column (717) penetrating through the upper side of the first sealing plate (716) is inserted at the inner side of the gas guiding hole (716), a connecting rod (708) is fixed at the top end of the plug column (717), the connecting rod (708) is fixed at the top of the connecting rod (705) extending from the top of the upper side of the detection cover (705) to the upper side of the fixing plate (707), the top of the first sealing plate (712) is provided with a return spring (714) connected with the bottom of the connecting rod (708).
4. A leak detection apparatus for a tank helium gas according to claim 3, wherein the diameters of the first sealing plate (712) and the second sealing plate (713) are equal to the diameter of the inner wall of the tank (2), and sealing gaskets are provided at the bottom of the annular partition plate (709), at the outer side of the first sealing plate (712), and at the outer side of the second sealing plate (713).
5. The leak detection device for the helium gas in the barrel body according to claim 4, wherein the blocking piece comprises an arc blocking plate (724) inserted at the top of the placing plate (701), the arc blocking plate (724) is staggered with the sliding groove (729), a connecting ring (718) is fixed at the bottom of the arc blocking plate (724), the connecting ring (718) is located below the placing plate (701), a pushing spring (719) connected with the top of the cover plate (4) is arranged at the bottom of the connecting ring (718), a fixed rod (710) is fixed at the bottom of the annular partition plate (709), the fixed rod (710) is located above the arc blocking plate (724), a connecting bin (723) is arranged at the bottom of the cover plate (4), the connecting bin (723) is located at one side of the motor (721), a storage battery (722) is mounted at the bottom of the connecting bin (723), a connecting piece rod (731) penetrating into the inner side of the connecting bin (723) is fixed at the bottom of the connecting ring (718), a fixed piece (732) is arranged at the bottom of the connecting bin (723), and a contact piece (723) is located at the inner side of the connecting bin (723).
6. The leak detection apparatus for helium in a tank according to claim 5, wherein said movable contact (711) is electrically connected to a motor (721) through a wire, and said stationary contact (732) is electrically connected to a battery (722) through a wire.
7. The leak detection apparatus for helium gas in a tank according to claim 6, wherein the width of the arc-shaped baffle (724) is larger than the diameter of the fixed rod (710), and the inner arc of the arc-shaped baffle (724) is equal to the outer arc of the tank (2).
8. A leak detection apparatus for tank helium according to claim 3, wherein the top of the detection cover (1) is provided with a through hole larger than the diameter of the connecting rod (708).
9. A leak detection method for helium in a tank, characterized in that a leak detection device for helium in a tank according to claim 5 is used, comprising the steps of:
s1: when the barrel body (2) is detected, the barrel body (2) is firstly placed at the top of the roller (730), the barrel body (2) can be limited through the arc-shaped baffle plate (724), then the first air cylinder (702) is started, and the cover plate (4) drives the barrel body (2) to move upwards through the shrinkage of the first air cylinder (702);
s2: the fixed rod (710) can be enabled to block the arc-shaped baffle plate (724) along with the upward movement of the barrel body (2), at the moment, the barrel body (2) can be enabled to move relative to the placement plate (701) by continuing to move upwards, the arc-shaped baffle plate (724) can be separated from the outer wall of the barrel body (2), when the barrel body (2) completely enters the detection cover (1), the arc-shaped baffle plate (724) is flush with the top of the placement plate (701) under the blocking of the fixed rod (710), so that the arc-shaped baffle plate (724) is prevented from shielding the outer wall of the barrel body (2), and meanwhile, the movable contact piece (711) can be contacted with the static contact piece (732) along with the downward movement of the arc-shaped baffle plate (724), so that the storage battery (722) can supply power for the motor (721);
s3: when the motor (721) operates, the reciprocating screw rod (726) can be driven to rotate, the sliding block (725) can reciprocate up and down along the reciprocating screw rod (726), when the sliding block (725) moves up relative to the supporting guide frame (720), the sliding block (725) can extrude the shifting block (733) through the inclined ejector rod (727), the connecting spring (728) stretches, meanwhile, the shifting block (733) moves towards a position far away from the center of the cover plate (4), and when the sliding block (725) moves down relative to the supporting guide frame (720), the shifting block (733) moves towards the center of the cover plate (4) under the cooperation of the connecting spring (728) and the sliding block (725), so that the supporting position at the bottom of the barrel body (2) can be changed, the bottom of the barrel body (2) is prevented from being blocked, the detection effect is prevented, and the detection accuracy is improved;
s4: then starting an air pump (6), enabling a cavity of the inner wall between the barrel body (2) and the detection cover (1) to be in a vacuum state through the operation of the air pump (6), and then opening a helium detector (5);
s5: then helium is injected between the first sealing plate (712) and the second sealing plate (713) through the valve (706) and the push rod (707), and then the second cylinder (703) is started to enable the first sealing plate (712) and the second sealing plate (713) to enter the barrel body (2) through the shrinkage of the second cylinder (703), and at the moment, the inner wall of the detection cover (1) and the outer wall of the barrel body (2) are in a vacuum state;
s6: if the side wall of the barrel body (2) is provided with a crack, helium between the first sealing plate (712) and the second sealing plate (713) is discharged through the crack of the side wall of the barrel body (2) under the action of pressure, the side wall of the barrel body (2) is detected in all directions along with the downward movement of the push rod (707), when the connecting rod (708) moves to the lowest position, the plug (717) and the air entraining hole (716) can be separated along with the downward movement of the second sealing plate (713), and part of helium between the first sealing plate (712) and the second sealing plate (713) can be diffused below the second sealing plate (713) so as to detect the bottom of the inner wall of the barrel body (2).
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| CN219265600U (en) * | 2023-04-11 | 2023-06-27 | 南京创协德工业自动化科技有限公司 | Frock leak hunting equipment to helium leak hunting |
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| FR2678733A1 (en) * | 1991-07-04 | 1993-01-08 | Renovation Emballages Metalliq | METHOD AND INSTALLATION FOR TESTING SIMILAR FUTS OR CONTAINERS. |
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Effective date of registration: 20240124 Address after: 745000 No. 1, A1 Road, Xifeng Industrial Park, Xifeng District, Qingyang City, Gansu Province Patentee after: Gansu Qingyang ruihaijia Energy Technology Co.,Ltd. Country or region after: China Address before: 745000 No.1 A1 Road, Industrial Park, Xifeng District, Qingyang City, Gansu Province Patentee before: Qingyang Ruihua Energy Co.,Ltd. Country or region before: China |