CN205826238U - A kind of cavity part high temperature leak detection system - Google Patents
A kind of cavity part high temperature leak detection system Download PDFInfo
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- CN205826238U CN205826238U CN201620496539.5U CN201620496539U CN205826238U CN 205826238 U CN205826238 U CN 205826238U CN 201620496539 U CN201620496539 U CN 201620496539U CN 205826238 U CN205826238 U CN 205826238U
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Abstract
The utility model discloses a kind of cavity part high temperature leak detection system, it includes hydraulic system, heating system and preventer；Workpiece for measurement is placed in preventer, and heating system is connected with hydraulic system, and the relief valve of hydraulic system is connected with workpiece for measurement；Heater in heating system heats to the hydraulic oil in hydraulic system top tank, and the hydraulic oil of heating flows to relief valve by hydraulic system and flows into workpiece for measurement again；When pressure system reaches to test load, start test, observe the situation of change of the pressure gauge of hydraulic system, the sealing of detection workpiece for measurement.The cavity part high temperature leak detection system that this utility model provides, it is rational in infrastructure, simulates workpiece applying working condition, it is possible to accurately detect the sealing of cavity at high operating temperatures, gets rid of the nonconformances such as cavity sand holes, it is ensured that the quality level of cavity.
Description
Technical field
This utility model relates to high temperature and leaks hunting field, particularly relates to a kind of cavity part high temperature leak detection system.
Background technology
In auto industry produces, sealing propertytest is the key technology that many part qualities ensure.At present, gas or the principle of liquid flowing can be caused by pressure difference, utilize the phenomenon that fluid occurs when passing small opening, the sealing of detection part.
Evolution Development goes out various different leak hunting method according to the method described above, as, suds leak detecting, leak detection by inflation pressure method, vacuum testing, halogen leak detection, fluorescent traccer technique, laser system detection method and helium mass analyzer method etc., said method or accuracy of detection not, cost the highest, or detection speed is too slow, poor repeatability, all there is a certain degree of defect.
Summary of the invention
The purpose of this utility model is for above-mentioned technical problem, thering is provided a kind of cavity part high temperature leak detection system rational in infrastructure, it simulates workpiece applying working condition, it is possible to accurately detect the sealing of cavity at high operating temperatures, get rid of the nonconformances such as cavity sand holes, it is ensured that the quality level of cavity.
The technical solution of the utility model:
For solving above-mentioned technical problem, this utility model provides cavity part high temperature leak detection system, and it includes hydraulic system, heating system and preventer.
Workpiece for measurement is placed in preventer, and heating system is connected with hydraulic system, and the relief valve of hydraulic system is connected with workpiece for measurement；Heater in heating system heats to the hydraulic oil in hydraulic system top tank, and the hydraulic oil of heating flows to relief valve by hydraulic system and flows into workpiece for measurement again；When pressure system reaches to test load, start test, observe the situation of change of the pressure gauge of hydraulic system, the sealing of detection workpiece for measurement.
Further, the heating-up temperature that described heater is arranged is 130 DEG C.
Further, the test load of described hydraulic system is 0.75-0.8Mpa.
Further, described hydraulic system includes fuel tank, gear pump, overflow valve, switching valve, relief valve and pressure gauge, hydraulic oil in fuel tank is pumped out by gear pump, the lower end of gear pump connects overflow valve, switching valve, relief valve are arranged on the lower end of overflow valve, the output pipe of relief valve is connected with workpiece for measurement, and pressure gauge is arranged between switching valve and relief valve.
Further, described heating system includes that heater and temperature controller, heater, temperature controller are arranged in hydraulic oil, heater is hydraulic oil heating, the temperature of hydraulic oil in temperature controller detection fuel tank, can control the temperature of hydraulic oil in fuel tank by arranging the temperature on temperature controller.
Further, described cavity part high temperature leak detection system also includes air bleeding valve, and it is connected with the fabrication hole at workpiece for measurement top by exhaust hose, and air bleeding valve is connected with fuel tank；So, if being full of hydraulic oil in the cavity of workpiece for measurement, then fuel tank can be back to by air bleeding valve, it can be ensured that workpiece for measurement is full of hydraulic oil.
Further, described preventer is protective door, relief valve, and in off position, relief valve just allows protective door to workpiece for measurement topping up, and protective door can block workpiece for measurement, places high-temperature liquid force feed and spills, causes unnecessary injury to leak detection personnel.
Further, described hydraulic system also includes filter, and it is arranged on the upper end of gear pump.
This utility model beneficial effect:
The cavity part high temperature leak detection system that this utility model provides, it is rational in infrastructure, simulates workpiece applying working condition, it is possible to accurately detect the sealing of cavity at high operating temperatures, gets rid of the nonconformances such as cavity sand holes, it is ensured that the quality level of cavity.
Accompanying drawing explanation
By the detailed description made in conjunction with the following drawings, of the present utility model above-mentioned and/or other aspects and advantage will be apparent from and be easier to understand, and these accompanying drawings the most schematically, are not limiting as this utility model, wherein:
Fig. 1 is this utility model structural representation.
In accompanying drawing, the parts representated by each label are as follows:
1. fuel tank；2. gear pump；3. overflow valve；4. switching valve；5. relief valve；6. workpiece for measurement；7. air bleeding valve；8. heater；9. temperature controller；10. filter；11. pressure gauges；12. protective doors.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, this utility model cavity part high temperature leak detection system is described in detail.
The embodiment recorded at this is specific detailed description of the invention of the present utility model, is used for illustrating design of the present utility model, is all explanatory and exemplary, should not be construed as this utility model embodiment and the restriction of this utility model scope.In addition to the embodiment recorded at this, those skilled in the art can also use other technical scheme obvious based on the application claims and description disclosure of that, and these technical schemes include using the technical scheme making any obvious substitutions and modifications to the embodiment recorded at this.
The accompanying drawing of this specification is schematic diagram, aids in illustrating design of the present utility model, it is schematically indicated the shape of each several part and mutual relation thereof.Fig. 1 is this utility model structural representation, and it includes hydraulic system, heating system and preventer.
Workpiece for measurement 6 is placed in preventer, and heating system is connected with hydraulic system, and the relief valve 5 that unloads of hydraulic system is connected with workpiece for measurement 6；The hydraulic oil heating in hydraulic system top tank 1 given by heater 8 in heating system, and the hydraulic oil of heating flows to relief valve 5 by hydraulic system and flows into workpiece for measurement 6 again；When pressure system arrives certain load, start test, observe the situation of change of the pressure gauge 11 of hydraulic system, the sealing of detection workpiece for measurement 6.
Described hydraulic system includes fuel tank 1, gear pump 2, overflow valve 3, switching valve 4, relief valve 5, filter 10 and pressure gauge 11, hydraulic oil in fuel tank 1 is pumped out by gear pump 2, the lower end of gear pump 2 connects overflow valve 3, switching valve 4, relief valve 5 are arranged on the lower end of overflow valve 3, the output pipe of relief valve 5 is connected with workpiece for measurement 6, pressure gauge 11 is arranged between switching valve 4 and relief valve 5, and filter 10 is arranged on the upper end of gear pump 2.
Described heating system includes that heater 8 and temperature controller 9, heater 8, temperature controller 9 are arranged in hydraulic oil, and heater 8 heats for hydraulic oil, and temperature controller 9 detects the temperature of the hydraulic oil in fuel tank 1；The heating-up temperature that heater 8 is arranged is 130 DEG C, is controlled hydraulic fluid temperature at 130 DEG C by temperature controller 9.
Described preventer is protective door 12, relief valve 5, and in off position, relief valve 5 just allows protective door 12 to workpiece for measurement topping up, and protective door 12 can block workpiece for measurement 6, places high-temperature liquid force feed and spills, causes unnecessary injury to leak detection personnel.
The load of described hydraulic system is 0.75-0.8Mpa；Described cavity part high temperature leak detection system also includes air bleeding valve 7, and it is connected with the fabrication hole at workpiece for measurement 6 top by exhaust hose, and air bleeding valve 7 is connected with fuel tank 1.
Cavity part high temperature leak detection system described herein is used cavity part on automobile to be hunted leak, as it is shown in figure 1, its concrete operation step is as follows:
First, connect leak detection system, the hydraulic oil in fuel tank 1 is heated to 130 DEG C, regulate load by overflow valve 3, by test load control to 0.75-0.8Mpa；Switching valve 4 switches to closed position, and air bleeding valve 7 is in an open position；
Then, workpiece for measurement 6 is loaded in preventer, use hand clamp to compress workpiece for measurement 6；
Then, by exhaust hose, the fabrication hole at workpiece for measurement 6 top is connected with air bleeding valve 7；
Then, close protective door 12, relief valve 5 is connected the cavity of workpiece for measurement 6；
Then, operation switching valve 4, switch it to open position, now, system, by 130 DEG C of high temperature oil pumps in fuel tank 1 to the cavity of workpiece for measurement 6, after high temperature oil is full of cavity, is back to fuel tank 1 by air bleeding valve 7；
Then, closing air bleeding valve 7, start test, whether the display pressure observing pressure gauge 11 changes；If pressure is in the range of technological requirement, then workpiece for measurement 6 No leakage, if the pressure of pressure gauge 11 is not in the range of technological requirement, then there is leakage in workpiece for measurement 6；
Finally, switching valve 4 switching to closed position, air bleeding valve 7 is in an open position, opening protection function door 12, unclamps the hand clamp of fixing workpiece for measurement 6, dismantles workpiece for measurement 6.
The cavity part high temperature leak detection system that this utility model provides, it is rational in infrastructure, simulates workpiece applying working condition, it is possible to accurately detect the sealing of cavity at high operating temperatures, gets rid of the nonconformances such as cavity sand holes, it is ensured that the quality level of cavity.
Claims (8)
1. a cavity part high temperature leak detection system, it is characterised in that include hydraulic system, heating system and preventer；Workpiece for measurement (6) is placed in preventer, and heating system is connected with hydraulic system, and the relief valve (5) of hydraulic system is connected with workpiece for measurement (6)；The hydraulic oil heating in hydraulic system top tank (1) given by heater (8) in heating system, and the hydraulic oil of heating flows to relief valve (5) by hydraulic system and flows into workpiece for measurement (6) again；When pressure system reaches to test load, start test, observe the situation of change of the pressure gauge (11) of hydraulic system, the sealing of detection workpiece for measurement (6).
Cavity part high temperature leak detection system the most according to claim 1, it is characterised in that the heating-up temperature that described heater (8) is arranged is 130 DEG C.
Cavity part high temperature leak detection system the most according to claim 1, it is characterised in that the test load of described hydraulic system is 0.75-0.8Mpa.
Cavity part high temperature leak detection system the most according to claim 1, it is characterised in that described hydraulic system include fuel tank (1), gear pump (2), overflow valve (3), switching valve (4),
Relief valve (5) and pressure gauge (11), hydraulic oil in fuel tank (1) is pumped out by gear pump (2), the lower end of gear pump (2) connects overflow valve (3), switching valve (4), relief valve (5) are arranged on the lower end of overflow valve (3), the output pipe of relief valve (5) is connected with workpiece for measurement (6), and pressure gauge (11) is arranged between switching valve (4) and relief valve (5).
Cavity part high temperature leak detection system the most according to claim 1, it is characterized in that, described heating system includes heater (8) and temperature controller (9), heater (8), temperature controller (9) are arranged in hydraulic oil, heater (8) is hydraulic oil heating, the temperature of the hydraulic oil in temperature controller (9) detection fuel tank (1).
Cavity part high temperature leak detection system the most according to claim 1, it is characterized in that, described cavity part high temperature leak detection system also includes air bleeding valve (7), and it is connected with the fabrication hole at workpiece for measurement (6) top by exhaust hose, and air bleeding valve (7) is connected with fuel tank (1).
Cavity part high temperature leak detection system the most according to claim 1, it is characterised in that described preventer is protective door (12), relief valve (5).
Cavity part high temperature leak detection system the most according to claim 4, it is characterised in that described hydraulic system also includes filter (10), it is arranged on the upper end of gear pump (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620496539.5U CN205826238U (en) | 2016-05-27 | 2016-05-27 | A kind of cavity part high temperature leak detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620496539.5U CN205826238U (en) | 2016-05-27 | 2016-05-27 | A kind of cavity part high temperature leak detection system |
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| CN205826238U true CN205826238U (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620496539.5U Expired - Fee Related CN205826238U (en) | 2016-05-27 | 2016-05-27 | A kind of cavity part high temperature leak detection system |
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| CN (1) | CN205826238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507726A (en) * | 2018-02-28 | 2018-09-07 | 重庆广福科技有限公司 | The mechanism of detectable auto parts machinery air-tightness |
-
2016
- 2016-05-27 CN CN201620496539.5U patent/CN205826238U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507726A (en) * | 2018-02-28 | 2018-09-07 | 重庆广福科技有限公司 | The mechanism of detectable auto parts machinery air-tightness |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20180527 |
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| CF01 | Termination of patent right due to non-payment of annual fee |