CN104697717A - Leak detection tool box and leak detection method thereof - Google Patents
Leak detection tool box and leak detection method thereof Download PDFInfo
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- CN104697717A CN104697717A CN201310653201.7A CN201310653201A CN104697717A CN 104697717 A CN104697717 A CN 104697717A CN 201310653201 A CN201310653201 A CN 201310653201A CN 104697717 A CN104697717 A CN 104697717A
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- detect aperture
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- 238000001514 detection method Methods 0.000 title claims abstract description 74
- 239000001307 helium Substances 0.000 claims abstract description 18
- 229910052734 helium Inorganic materials 0.000 claims abstract description 18
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000007689 inspection Methods 0.000 claims description 8
- 235000004443 Ricinus communis Nutrition 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 240000000528 Ricinus communis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a leak detection tool box which is used for detecting the leak of a heat exchanger and comprises a box body used for accommodating the heat exchanger, wherein a movable door used for sealing the box body is arranged on the side part of the box body, a first detection hole used for penetrating through a detection probe and a detection hole opening and closing device used for opening and closing the first detection hole are arranged on the movable door, and a connecting device used for communicating the inside and the outside of the box body is also arranged on the box body. A leak detection method is also disclosed. The leak detection tool box and the leak detection method thereof have the advantages of strong universality, low cost, simple operation, convenient maintenance, high production efficiency of the leak detection method, safety and reliability. And the alarm points reach the required precision of the helium detector at the leakage detection rate.
Description
Technical field
The present invention relates to field of heat exchangers, particularly relate to a kind of leak detection tool equipment case and leak hunting method thereof.
Background technology
Micro-channel heat exchanger is a kind of new type high efficient heat exchanger, there is the advantages such as heat transfer efficiency is high, volume is little, lightweight, charging amount is few, use in a large number in family expenses, commercial refrigerating device at present, but it is many also to there is welding position, Product jointing process need be carried out in soldering oven, pilot process cannot complete monitoring, can only reduce leakage by production and assembly, welding parameter adjustment, to be tested control by helium inspection.Current used helium inspection machine carries out production testing, and the mode adopting casing entirety to vacuumize is tested.Along with the increase of product size, volume and the evacuated time of leak detection casing increase considerably, and have a strong impact on product leak detection efficiency.And helium inspection machine purchase cost is higher, during product leakage, also cannot determine concrete leak source position, can not take appropriate measures and improve.
Summary of the invention
In view of the present situation of prior art, the object of the present invention is to provide a kind of leak detection tool equipment case and leak hunting method thereof, leak detection tool equipment case highly versatile, cost is low, simple to operate, easy to maintenance, and leak hunting method production efficiency is high, safe and reliable.For achieving the above object, technical scheme of the present invention is as follows:
A kind of leak detection tool equipment case, hunting leak for heat exchanger, comprising the casing for holding described heat interchanger;
The sidepiece of described casing is provided with the dodge gate for closing described casing, described dodge gate is provided with the first detect aperture for running through detection probe and the detect aperture closing device for the first detect aperture described in folding;
Described casing is also provided with the coupling arrangement be communicated with inside and outside described casing.
Wherein in an embodiment, described casing is in the V-shaped of standing upside down.
Wherein in an embodiment, described dodge gate comprises the sealing strip, sealing strip erecting frame, the first panel, framework, flexible glue band and the second panel that are cascading.
Wherein in an embodiment, one end of described dodge gate and the framework pivot joint of described casing, the other end is by snap component and described framework clamping.
Wherein in an embodiment, described leak detection tool equipment case also comprises for carrying out spacing chain to described dodge gate, and one end of described chain connects described framework, and the other end connects described dodge gate.
Wherein in an embodiment, described leak detection tool equipment case also comprises the fan be arranged in described casing.
Wherein in an embodiment, described leak detection tool equipment case also comprises the timer be arranged on described dodge gate.
Wherein in an embodiment, described leak detection tool equipment case also comprises the cushion block for supporting described heat interchanger and the cushion block installing plate for supporting fixing described cushion block, described cushion block and described cushion block installing plate are all placed in described casing, described cushion block installing plate is arranged on the bottom of described casing, and described cushion block is fixed on described cushion block installing plate.
Further, the quantity of described cushion block is multiple, and multiple described cushion block interval is arranged, described cushion block and described heat interchanger suitable.
Wherein in an embodiment, described leak detection tool equipment case also comprises the chassis for supporting described casing, and the bottom on described chassis is provided with castor.
Wherein in an embodiment, described in described leak detection tool equipment case, coupling arrangement is connecting pipe, and the quantity of described connecting pipe is two, is respectively the first connecting pipe and the second connecting pipe;
One end of described first connecting pipe is for connecting the feeder inflated described heat interchanger, and the other end is for connecting the import of heat interchanger;
One end of described second connecting pipe is for connecting described feeder, and the other end is for connecting the outlet of described heat interchanger.
Wherein in an embodiment, described detect aperture closing device comprises sliding panel, the first mount pad, the second mount pad, pin and knob;
Described sliding panel is embedded between described first mount pad and described second mount pad, can move relative to described first mount pad and the second mount pad at the length direction of described sliding panel;
One end of described sliding panel is provided with slotted hole, and the other end is provided with mounting hole; Described pin is arranged on described dodge gate, is placed in described slotted hole, for spacing to described sliding panel; The connected mode of described knob and described dodge gate is that screw thread removably connects, and described knob runs through described mounting hole, for fixing described sliding panel;
Described sliding panel is also provided with the second detect aperture, described second detect aperture is placed between described slotted hole and described mounting hole, described second detect aperture is used for matching with described first detect aperture, when described second detect aperture is relative with described first detect aperture, described detection probe can run through described second detect aperture and the first detect aperture successively; When described second detect aperture and described first detect aperture stagger, described first detect aperture is sealed by described sliding panel.
Also relate to a kind of leak hunting method, adopt the leak detection tool equipment case of above-mentioned arbitrary technical scheme, comprise the following steps:
S1, heat interchanger is placed in described leak detection tool equipment case, and one end of the coupling arrangement on casing connects the import and export of described heat interchanger, and the other end connects the feeder described heat interchanger being filled to helium, closes dodge gate;
S2, opens feeder, uses leak locator to carry out detecting leakage to described heat interchanger, if qualified, then enters step S3, otherwise enter step S6;
S3, heat exchanger inflation is complete, starts timer, arrives Preset Time, and timer alarm is pointed out;
S4, detects in casing whether have helium from the first detect aperture, if having, detects, find out leak source, then enter step S6 to each pad; If without, directly enter step S5;
S5, starts and reclaims button recovery helium;
S6, takes out heat interchanger, enters the leak detection of next heat interchanger.
Wherein in an embodiment, in step S3, after arrival Preset Time, also comprise and start fan carries out flow-disturbing step to the air in described casing.
Wherein in an embodiment, before step S1, also comprise the step of inspection empty van, to guarantee box house noresidue helium.
The invention has the beneficial effects as follows:
Leak detection tool equipment case of the present invention and leak hunting method thereof, leak detection tool equipment is simple to operate, easy to maintenance, low cost of manufacture, and leak hunting method production efficiency is high, and production run is safe and reliable; Successfully solve because product size becomes greatly, the problem that product leak detection cost increases and the leak detection time increases; Simultaneously in leakage recall rate, alarm set point all reaches the precision of required helium inspection machine.
Accompanying drawing explanation
Fig. 1 is the schematic front view of leak detection tool equipment case one embodiment of the present invention;
Fig. 2 is for looking schematic diagram in a left side for the case of leak detection tool equipment shown in Fig. 1;
Fig. 3 is the schematic perspective view of the case of leak detection tool equipment shown in Fig. 1;
The framework decomposition schematic diagram that Fig. 4 is casing shown in Fig. 1;
Fig. 5 is the schematic front view of framework shown in Fig. 4;
Fig. 6 is for looking schematic diagram in a left side for framework shown in Fig. 4;
Fig. 7 is the decomposing schematic representation of dodge gate shown in Fig. 2;
Fig. 8 is the schematic front view of dodge gate shown in Fig. 2;
Fig. 9 is for looking schematic diagram in a left side for dodge gate shown in Fig. 2;
Figure 10 is the schematic front view of the closing device of detect aperture shown in Fig. 2;
Figure 11 is for looking schematic diagram in a left side for the shedding motion of detect aperture shown in Fig. 2;
Figure 12 is the decomposing schematic representation of the closing device of detect aperture shown in Fig. 2;
Figure 13 is the schematic front view of the installing plate of cushion block shown in Fig. 1;
Figure 14 is the schematic top plan view of the installing plate of cushion block shown in Fig. 1;
Figure 15 is the schematic front view of cushion block shown in Fig. 1;
Figure 16 is the schematic top plan view of cushion block shown in Fig. 1;
Figure 17 is for looking schematic diagram in a left side for cushion block shown in Fig. 1;
Figure 18 is the schematic perspective view of cushion block shown in Fig. 1.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, leak detection tool equipment case of the present invention and leak hunting method thereof are further elaborated.Should be appreciated that specific embodiment described herein only for explaining the present invention, being not intended to limit the present invention.
Referring to figs. 1 through Figure 18, leak detection tool equipment case one embodiment of the present invention is used for heat exchanger and hunts leak, comprise the casing 2 for holding heat interchanger, the sidepiece of casing 2 is provided with the dodge gate 3 for closed box 2, dodge gate 3 being provided with for running through the first detect aperture (not shown) of detection probe and the detect aperture closing device 6 for folding first detect aperture, casing 2 being also provided with the coupling arrangement be communicated with inside and outside casing 2.Preferably, casing 2 is in the V-shaped of standing upside down.
Leak detection tool equipment case also comprises the cushion block 5 for supporting heat interchanger and the cushion block installing plate 4 for supporting fixing cushion block 5, and cushion block 5 and cushion block installing plate 4 are all placed in casing 2, and cushion block installing plate 4 is arranged on the bottom of casing 2, and cushion block 5 is fixed on cushion block installing plate 4.Preferably, the quantity of cushion block 5 is multiple, and multiple cushion block 5 interval is arranged, and cushion block 5 is suitable with heat interchanger.Cushion block installing plate 4 and cushion block 5 all adopt polyurethane material to make, in order to prevent from scratching heat interchanger.
Coupling arrangement is connecting pipe 9, connecting pipe 9 can be flexible pipe, be arranged on the top of casing 2, run through the roof of casing 2, the quantity of connecting pipe 9 is two, be respectively the first connecting pipe and the second connecting pipe, the feeder (not shown) that one end of the first connecting pipe carries out inflating for connecting heat exchanger, the other end is for connecting the import of heat interchanger; One end of second connecting pipe is for connecting described feeder, and the other end is for connecting the outlet of heat interchanger.
Detect aperture closing device 6 comprises sliding panel 61, first mount pad 62, second mount pad 64, pin 63 and knob 65; Wherein, sliding panel 61 is embedded between the first mount pad 62 and the second mount pad 64, can move relative to the first mount pad 62 and the second mount pad 64 at the length direction of sliding panel 61.
One end of sliding panel 61 is provided with slotted hole 66, and the other end is provided with mounting hole 68, and pin 63 is arranged on dodge gate 3, is placed in slotted hole 66, for spacing to sliding panel 61; Knob 65 is that screw thread removably connects with the connected mode of dodge gate 3, knob 65 penetrating mounting holes 68, for fixing sliding panel 61, when knob 65 is threaded with dodge gate 3, sliding panel 61 is fixed on dodge gate 3, rotating knob 65 makes it depart from dodge gate 3, and sliding panel 61 can move left and right by relative motion door 3, is undertaken spacing in the process moved left and right by pin 63.
Sliding panel 61 is also provided with the second detect aperture 67, second detect aperture 67 is placed between slotted hole 66 and mounting hole 68, second detect aperture 67 is for matching with the first detect aperture on dodge gate 3, when second detect aperture 67 is relative with the first detect aperture, detection probe can run through the second detect aperture 67 and the first detect aperture successively; When second detect aperture 67 staggers with described first detect aperture, described first detect aperture is sealed by sliding panel 61.
Leak detection tool equipment case also comprises the chassis 1 for supporting box 2, and the bottom on chassis 1 is provided with castor 15, and castor 15 is universal caster wheel preferably, and the quantity of castor 15 is four, and wherein two castors have brake function.Castor 15 is set, facilitates the movement of leak detection tool equipment case.
As a kind of embodiment, dodge gate 3 comprises the sealing strip 36, sealing strip erecting frame 35, first panel 32, framework 31, flexible glue band 33 and the second panel 34 that are cascading.This kind of mode, makes dodge gate 3 easy disassembly, good airproof performance.
As a kind of embodiment, one end of dodge gate 3 and the framework pivot joint of casing 2, the other end is by the framework clamping of snap component 12 with casing 2.One end of dodge gate 3 and the framework of casing 2 preferably adopt hinge 11 pivot joint.The framework of casing 2 comprises skeleton 21, truss 22, side plate 24 and shell 23, be embedded in after truss 22 and skeleton 21 stack between shell 23 and side plate 24, two frameworks of casing 2 are connected to form the V-shaped of handstand, and the framework of casing 2 also arranges handle 14, facilitate push-and-pull leak detection tool equipment case.Leak detection tool equipment case also comprises for carrying out spacing chain 10 to dodge gate 3, the framework of one end connect box 2 of chain 10, and the other end connects dodge gate 3.Chain 10 is set, prevents dodge gate 3 aperture too large and damage hinge 11.
As a kind of embodiment, leak detection tool equipment case also comprises the fan 7 be arranged in casing 2, and fan 7 is for carrying out flow-disturbing to the air in casing 2, and make the distribution of gas in casing even, fan 7 is powered by rechargeable battery 13.Preferably, leak detection tool equipment case also comprises the timer 8 be arranged on dodge gate 3, so that observe the dwell time after detected heat interchanger inflation.
Above-mentioned leak detection tool equipment case comprises the following steps in heat exchanger testing process:
S1, is placed in leak detection tool equipment case by heat interchanger, one end of the coupling arrangement on casing 2 connects the import and export of described heat interchanger, and the other end connects heat exchanger and carries out the feeder filling helium, and close dodge gate, heat interchanger is sealed in leak detection tool equipment case; That is the pneumatic head of connecting pipe 9 is docked with heat interchanger by rapid-acting coupling, then shut dodge gate 3, dodge gate 3 is locked by snap component 6;
S2, opens feeder, uses leak locator to carry out detecting leakage (tentatively hunting leak) to the heat interchanger in casing 2, if qualified, then enters step S3, otherwise enter step S6;
S3, heat exchanger inflation is complete, starts timer, arrives Preset Time, and timer alarm is pointed out;
S4, the detection probe of leak locator stretches into the first detect aperture and detects in casing 2 whether have helium, if having, each pad of heat exchanger detects, and finds out leak source, then enters step S6; If without, qualified, directly enter step S5;
S5, starts and reclaims button recovery helium;
S6, takes out heat interchanger, enters the leak detection of next heat interchanger.
As a kind of embodiment, in step S3, after arrival Preset Time, also comprise the step that the air started in fan 7 pairs of casings 2 carries out flow-disturbing.
As a kind of embodiment, before step S1, also comprise the step of inspection empty van, to guarantee the inner noresidue helium of casing 2.
The leak detection tool equipment case of above embodiment and leak hunting method thereof, leak detection tool equipment is simple to operate, easy to maintenance, low cost of manufacture, and leak hunting method eliminates the step vacuumized, and production efficiency is high, and production run is safe and reliable; Successfully solve because product size becomes greatly, the problem that product leak detection cost increases and the leak detection time increases; Simultaneously in leakage recall rate, alarm set point all reaches the precision of required helium inspection machine.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (15)
1. a leak detection tool equipment case, hunts leak for heat exchanger, it is characterized in that:
Comprise the casing for holding described heat interchanger;
The sidepiece of described casing is provided with the dodge gate for closing described casing, described dodge gate is provided with the first detect aperture for running through detection probe and the detect aperture closing device for the first detect aperture described in folding;
Described casing is also provided with the coupling arrangement be communicated with inside and outside described casing.
2. leak detection tool equipment case according to claim 1, is characterized in that:
Described casing is in the V-shaped of standing upside down.
3. leak detection tool equipment case according to claim 2, is characterized in that:
Described dodge gate comprises the sealing strip, sealing strip erecting frame, the first panel, framework, flexible glue band and the second panel that are cascading.
4. leak detection tool equipment case according to claim 2, is characterized in that:
One end of described dodge gate and the framework pivot joint of described casing, the other end is by snap component and described framework clamping.
5. leak detection tool equipment case according to claim 4, is characterized in that;
Also comprise for carrying out spacing chain to described dodge gate, one end of described chain connects described framework, and the other end connects described dodge gate.
6. leak detection tool equipment case according to claim 2, is characterized in that:
Also comprise the fan be arranged in described casing.
7. leak detection tool equipment case according to claim 2, is characterized in that:
Also comprise the timer be arranged on described dodge gate.
8. the leak detection tool equipment case according to any one of claim 1-7, is characterized in that:
Also comprise the cushion block for supporting described heat interchanger and the cushion block installing plate for supporting fixing described cushion block, described cushion block and described cushion block installing plate are all placed in described casing, described cushion block installing plate is arranged on the bottom of described casing, and described cushion block is fixed on described cushion block installing plate.
9. leak detection tool equipment case according to claim 8, is characterized in that:
The quantity of described cushion block is multiple, and multiple described cushion block interval is arranged, described cushion block and described heat interchanger suitable.
10. the leak detection tool equipment case according to any one of claim 1-7, is characterized in that:
Also comprise the chassis for supporting described casing, the bottom on described chassis is provided with castor.
11. leak detection tool equipment casees according to any one of claim 1-7, is characterized in that;
Described coupling arrangement is connecting pipe, and the quantity of described connecting pipe is two, is respectively the first connecting pipe and the second connecting pipe;
One end of described first connecting pipe is for connecting the feeder inflated described heat interchanger, and the other end is for connecting the import of heat interchanger;
One end of described second connecting pipe is for connecting described feeder, and the other end is for connecting the outlet of described heat interchanger.
12. leak detection tool equipment casees according to any one of claim 1-7, is characterized in that;
Described detect aperture closing device comprises sliding panel, the first mount pad, the second mount pad, pin and knob;
Described sliding panel is embedded between described first mount pad and described second mount pad, can move relative to described first mount pad and the second mount pad at the length direction of described sliding panel;
One end of described sliding panel is provided with slotted hole, and the other end is provided with mounting hole; Described pin is arranged on described dodge gate, is placed in described slotted hole, for spacing to described sliding panel; The connected mode of described knob and described dodge gate is that screw thread removably connects, and described knob runs through described mounting hole, for fixing described sliding panel;
Described sliding panel is also provided with the second detect aperture, described second detect aperture is placed between described slotted hole and described mounting hole, described second detect aperture is used for matching with described first detect aperture, when described second detect aperture is relative with described first detect aperture, described detection probe can run through described second detect aperture and the first detect aperture successively; When described second detect aperture and described first detect aperture stagger, described first detect aperture is sealed by described sliding panel.
13. 1 kinds of leak hunting methods, adopt the leak detection tool equipment case described in any one of claim 1-12, it is characterized in that, comprise the following steps:
S1, heat interchanger is placed in described leak detection tool equipment case, and one end of the coupling arrangement on casing connects the import and export of described heat interchanger, and the other end connects the feeder described heat interchanger being filled to helium, closes dodge gate;
S2, opens feeder, uses leak locator to carry out detecting leakage to described heat interchanger, if qualified, then enters step S3, otherwise enter step S6;
S3, heat exchanger inflation is complete, starts timer, arrives Preset Time, and timer alarm is pointed out;
S4, detects in casing whether have helium from the first detect aperture, if having, detects, find out leak source, then enter step S6 to each pad; If without, directly enter step S5;
S5, starts and reclaims button recovery helium;
S6, takes out heat interchanger, enters the leak detection of next heat interchanger.
14. leak hunting methods according to claim 13, is characterized in that:
In step S3, after arrival Preset Time, also comprise and start fan carries out flow-disturbing step to the air in described casing.
15. leak hunting methods according to claim 13, is characterized in that:
The step of inspection empty van was also comprised, to guarantee box house noresidue helium before step S1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653201.7A CN104697717A (en) | 2013-12-05 | 2013-12-05 | Leak detection tool box and leak detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653201.7A CN104697717A (en) | 2013-12-05 | 2013-12-05 | Leak detection tool box and leak detection method thereof |
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| CN104697717A true CN104697717A (en) | 2015-06-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197917A (en) * | 2020-10-12 | 2021-01-08 | 苏州钢盾人防工程有限公司 | Air-raid door tightness detection method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197917A (en) * | 2020-10-12 | 2021-01-08 | 苏州钢盾人防工程有限公司 | Air-raid door tightness detection method |
| CN112197917B (en) * | 2020-10-12 | 2023-08-25 | 苏州钢盾人防工程有限公司 | Air door tightness detection method |
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