CN210953282U - Cylinder block, turbo charger and seal chamber leak quick detection device - Google Patents

Cylinder block, turbo charger and seal chamber leak quick detection device Download PDF

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Publication number
CN210953282U
CN210953282U CN201922471798.9U CN201922471798U CN210953282U CN 210953282 U CN210953282 U CN 210953282U CN 201922471798 U CN201922471798 U CN 201922471798U CN 210953282 U CN210953282 U CN 210953282U
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China
Prior art keywords
pipeline
detection device
quick
sealed cavity
hose
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CN201922471798.9U
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Chinese (zh)
Inventor
杨鹏程
鞠沛显
张亮
黄友
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Chongqing Zongshen Aviation Engine Manufacturing Co.,Ltd.
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Chongqing Zongshen Aircraft Engine Manufacturing Co ltd
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Abstract

The utility model discloses a cylinder block, a turbocharger and a sealed cavity leakage rapid detection device, which comprises a pipeline with joints at two ends, wherein the pipeline is respectively connected with two pressure gauges, a pipeline inner cavity between the two pressure gauges is provided with a cut-off hole with an inner diameter D smaller than the inner diameter of the pipeline, and the two pressure gauges have the same specification; one end of the two ends of the pipeline can be connected with the cavity of the piece to be detected, and the other end is connected with an external air source. Through the utility model discloses a quick detection device can judge whether there is leakage and let out leakage quantity by convenient and fast ground seal chamber directly perceivedly to can be used for detecting and judge whether qualified the leakage quantity that lets out of half seal chamber, just the utility model discloses a quick detection device convenient to use, swift, with low costs, portable.

Description

Cylinder block, turbo charger and seal chamber leak quick detection device
Technical Field
The utility model relates to a quick detection device for detecting whether seal chamber leaks, especially use the quick detection device of leakage on engine cylinder body or turbo charger casing.
Background
Generally, the airtightness of a sealing element or a semi-sealing element such as an engine cylinder block or a turbocharger shell needs to be detected after the manufacturing is finished, and the airtightness can be ensured in the work after the assembly.
Chinese patent CN202994400U discloses a box body gas leakage detector, and specifically discloses: the gas circuit system comprises a supporting plate and a gas circuit system arranged on the supporting plate, wherein the supporting plate is fixed on a box body provided with a sealing structure, the gas circuit system comprises a pressure regulating filter, a flow meter and a flow control valve which are all fixed on the supporting plate, a gas inlet of the pressure regulating filter is connected with an external gas source, the flow meter is communicated with the pressure regulating filter and the flow control valve, and a gas inlet hole communicated with the flow control valve is formed in the supporting plate. In the patent document, an external air source passes through a pressure regulating filter, a flow meter and a flow control valve of an air path system and is injected into a box body through an air inlet hole in a supporting plate, and the flow meter can detect the air leakage flow of the air in the box body to be detected under specific air pressure.
The box gas leakage detector in the above patent needs to fix the box support plate in advance and measure through a plurality of instruments and controllers, such as a pressure regulating filter, an independent pressure gauge, a flow meter, a flow control valve, etc. The structure is complicated, the cost is high, and the detection is time-consuming and labor-consuming.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a use is convenient, quick seal chamber leakage detection device.
In order to achieve the above object, the present invention is realized as follows: the utility model provides a seal chamber body leaks quick detection device, includes that both ends have the pipeline of joint be connected with two manometers on the pipeline respectively, the pipeline inner chamber between two manometers is provided with an internal diameter D and is less than the closure hole of pipeline internal diameter, the specification of two manometers is the same, and pipeline both ends one end can connect and detect a cavity, and another termination external air source. Through the arrangement, one end of the pipeline at one end of the detection device is connected with the sealed cavity to be detected, and the other end of the pipeline is connected with an external air source. And introducing gas into the to-be-detected forehand through a pipeline by external origin, if the pressure values of the two pressure gauges are consistent, indicating that the sealed cavity is not leaked, and if the displayed pressure value of the pressure gauge close to the external origin is greater than the displayed pressure value of the pressure gauge close to the sealed cavity, indicating that the sealed cavity is leaked, and obtaining the leakage amount of the sealed cavity by the difference of the pressure values of the two pressure gauges.
Preferably, the cutoff hole has a length L.
In order to further improve the detection precision, the inner diameter D of the intercepting hole is less than or equal to 1mm, and the length L =3-10 mm.
Preferably, the inner walls of the pipeline at the two ends of the cut-off hole are conical walls with the inner diameter being reduced near the cut-off hole.
For further realizing the rapid detection, the conical wall and the intercepting hole are independent pipeline joints with interfaces at two ends, one end of each pipeline joint is connected with a pipeline connected with one pressure gauge, and the other end of each pipeline joint is connected with a pipeline connected with another pressure gauge.
For further ease of connection, the conduit is a hose.
For further realizing the rapid detection, one end of the hose is connected with a quick-connection male joint, and the other end of the hose is connected with a quick-connection female joint. The quick-connecting male head and the quick-connecting female head are existing products directly bought in the market.
The utility model provides a leak short-term test device for engine cylinder block, includes the aforesaid seal chamber leak short-term test device, the inlet connection of the quick-connected mesh head of hose and engine cylinder block, the quick-connected public head and the compressed gas jar of hose are connected.
The utility model provides a leak quick detection device for turbo charger cavity, includes the aforesaid seal chamber leak quick detection device, the quick-witted first and turbo charger's access connection of connecing of hose, the quick-connection male joint and the compressed gas jar of hose are connected.
Has the advantages that:
the utility model discloses a seal chamber leaks quick detection device only needs two manometer and a pipeline to set up a cut flow hole and can realize the leak testing to seal chamber between two manometer. Through connecting pipeline one end on seal chamber, the other end is connected the compression other, can judge whether seal chamber exists the leakage through the pressure numerical value display of two blocks of manometer to the numerical value difference table of further accessible two blocks of manometer judges seal chamber's leakage quantity.
Through the utility model discloses a short-term test device can judge whether there is leakage in seal chamber convenient and fast directly perceivedly, just the utility model discloses a short-term test device convenient to use, swift, with low costs, portable.
Drawings
FIG. 1 is a structural diagram of the device for rapidly detecting leakage of a sealed cavity of the present invention;
FIG. 2 is a usage diagram of the device for rapidly detecting leakage of a sealed cavity of the present invention;
fig. 3 is a partial cross-sectional view of fig. 1.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and any modifications or replacements within the basic spirit of the embodiments still fall within the scope of the present invention claimed in the claims.
Example (b): as shown in fig. 1-3, a rapid detection device for seal cavity leakage comprises a pipeline 1 with joints at two ends, two pressure gauges, namely a pressure gauge a2 and a pressure gauge B3, are respectively connected to the pipeline, and a closure hole 4 with an inner diameter D smaller than that of the pipeline is arranged in an inner cavity of the pipeline between the two pressure gauges. When the device is used, two ends of the pipeline are respectively connected with a compressed air source and a sealed cavity, such as an engine cylinder body or a turbocharger shell. Compressed gas is introduced into the sealed cavity through a pipeline by a compressed gas source, and if the pressure values of the pressure gauge A and the pressure gauge B are consistent, the sealed cavity is indicated to be free of leakage. If the pressure value of the pressure gauge A close to the compressed air source is larger than that of the pressure gauge B close to the sealed cavity, the sealed cavity is indicated to have leakage, and the leakage amount of the sealed cavity can be obtained by looking up the table according to the pressure difference value of the pressure gauge A and the pressure gauge B.
The table may be prepared by the inventor in advance, for example, when the measured pressure difference is 1 unit, the leakage amount of the sealed cavity is detected and recorded, when the measured pressure difference is 2 units, the leakage amount of the sealed cavity is detected and recorded, and so on. Finally, a table corresponding to the pressure difference value and the leakage amount is worked out. In subsequent detection, the leakage amount of the sealing cavity can be read according to the pressure difference.
In addition, the rapid detection device of the embodiment can also be used for detecting the air tightness of the semi-sealed cavity, and when the semi-sealed cavity is detected, the leakage amount range of the semi-sealed cavity is obtained by looking up the table, and the pressure difference range of the pressure gauge A and the pressure gauge B is M. During detection, if the pressure difference value between the pressure gauge A and the pressure gauge B is within a specified range M, the detected leakage rate of the semi-sealed cavity is qualified, if the pressure difference value between the pressure gauge A and the pressure gauge B is greater than M, the detected leakage rate of the semi-sealed cavity exceeds the standard, and the leakage rate of the sealed cavity is obtained by looking up a table according to the pressure difference value and the pressure difference between the pressure difference value and M.
In addition, the shut-off hole in this embodiment is a hole having a certain length L. In this embodiment, the inner diameter D of the cutoff hole is not greater than 1mm, and may be selected but not limited to 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1 mm. The cutoff hole length L =3-10mm, which may be selected but not limited to 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or 10 mm. And the inner walls of the pipelines at the two ends of the cut-off hole are positioned near the cut-off hole and are conical walls with the inner diameters becoming smaller.
Wherein, the intercepting hole can be directly arranged in the inner cavity of the pipeline and integrated with the pipeline.
As another embodiment of this embodiment, the conical wall and the cutoff hole are independent pipe joints 5 with interfaces at two ends, one end of each pipe joint is connected with a pipe connected with one pressure gauge, and the other end of each pipe joint is connected with a pipe connected with another pressure gauge. The two ends of the pipeline joint are respectively connected with the pipeline through threads, and a sealing ring is arranged at the thread.
As another implementation in this embodiment, the conduit is a hose.
As another embodiment in this embodiment, one end of the hose is connected to a quick-coupling male joint 6, and the other end of the hose is connected to a quick-coupling female joint 7. The quick-connecting male head and the quick-connecting female head are existing products directly bought in the market. The quick-connection female head can be quickly connected with an input port of the cavity to be detected, and the quick-connection female head can be quickly connected with an output port of a compressed air source.
The embodiment also provides a leakage quantity quick detection device for the engine cylinder body, which comprises the sealing cavity leakage quick detection device, wherein the quick-connection female head of the hose is connected with an inlet of the engine cylinder body, and the quick-connection male head of the hose is connected with the compressed gas tank.
The utility model provides a let out leakage quantity short-term test device for turbo charger cavity, includes the aforesaid sealed cavity leak short-term test device, female head of connecing soon of hose and turbo charger's access connection, the male head of connecing soon of hose is connected with the compressed gas jar.
The quick detection device of the leakage quantity of the seal cavity of the embodiment only needs two pressure meters and one pipeline, and a cutoff hole is arranged between the two pressure meters to realize the leakage detection of the seal cavity. Through connecting pipeline one end on seal chamber, the other end is connected the compression other, can judge whether seal chamber exists the leakage through the pressure numerical value display of two blocks of manometer to the numerical value difference table of further accessible two blocks of manometer judges seal chamber's leakage quantity.
Through the short-term test device of this embodiment, can convenient and fast judge directly perceivedly whether seal chamber exists and leak the leakage quantity to can be used for detecting and judging whether qualified the leakage quantity of half seal chamber, just the utility model discloses a short-term test device convenient to use, swift, with low costs, portable.

Claims (8)

1. The utility model provides a seal chamber body leaks quick detection device which characterized in that: the pipeline comprises a pipeline with joints at two ends, wherein the pipeline is respectively connected with two pressure gauges, a cut-off hole with the inner diameter D smaller than that of the pipeline is arranged in an inner cavity of the pipeline between the two pressure gauges, and the two pressure gauges have the same specification; one end of the two ends of the pipeline can be connected with the cavity of the piece to be detected, and the other end is connected with an external air source.
2. The sealed cavity leakage rapid detection device according to claim 1, characterized in that: the cutoff orifice has a length L.
3. The sealed cavity leakage rapid detection device according to claim 1 or 2, characterized in that: the inner walls of the pipelines at the two ends of the cut-off hole are conical walls with the inner diameters being reduced at the position close to the cut-off hole.
4. The sealed cavity leakage rapid detection device according to claim 3, characterized in that: the pipeline that toper wall and intercepting orifice are independent both ends have the interface connects, pipeline joint one end is connected with the pipeline that is connected with a manometer, the pipeline connects the other end and is connected with the pipeline that is connected with another manometer.
5. The sealed cavity leakage rapid detection device according to claim 4, characterized in that: the pipeline is a hose.
6. The sealed cavity leakage rapid detection device according to claim 5, characterized in that: one end of the hose is connected with a quick-connection male joint, and the other end of the hose is connected with a quick-connection female joint.
7. The utility model provides a cylinder block leaks quick detection device which characterized in that: the sealed cavity leakage rapid detection device comprises the sealed cavity leakage rapid detection device of claim 6, wherein a quick-connection female joint of the hose is connected with an inlet of an engine cylinder body, and a quick-connection male joint of the hose is connected with a compressed gas tank.
8. The utility model provides a quick detection device of turbo charger leakage which characterized in that: the sealed cavity leakage rapid detection device comprises the sealed cavity leakage rapid detection device of claim 6, wherein a quick-connection female head of the hose is connected with an inlet of a turbocharger, and a quick-connection male head of the hose is connected with a compressed gas tank.
CN201922471798.9U 2019-12-31 2019-12-31 Cylinder block, turbo charger and seal chamber leak quick detection device Active CN210953282U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922471798.9U CN210953282U (en) 2019-12-31 2019-12-31 Cylinder block, turbo charger and seal chamber leak quick detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922471798.9U CN210953282U (en) 2019-12-31 2019-12-31 Cylinder block, turbo charger and seal chamber leak quick detection device

Publications (1)

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CN210953282U true CN210953282U (en) 2020-07-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114397066A (en) * 2022-01-11 2022-04-26 沪东中华造船(集团)有限公司 Method for testing tightness of gas kinetic energy joint in ship construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114397066A (en) * 2022-01-11 2022-04-26 沪东中华造船(集团)有限公司 Method for testing tightness of gas kinetic energy joint in ship construction

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Address after: Building 14, No. 126, Yunan Avenue, Banan District, Chongqing

Patentee after: Chongqing Zongshen Aviation Engine Manufacturing Co.,Ltd.

Address before: Building 14, No. 126, Yunan Avenue, Banan District, Chongqing

Patentee before: CHONGQING ZONGSHEN AIRCRAFT ENGINE MANUFACTURING CO.,LTD.

CP01 Change in the name or title of a patent holder