CN112081656B - Device and method for detecting air tightness of bypass valve of turbocharger - Google Patents
Device and method for detecting air tightness of bypass valve of turbocharger Download PDFInfo
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- CN112081656B CN112081656B CN202010966924.2A CN202010966924A CN112081656B CN 112081656 B CN112081656 B CN 112081656B CN 202010966924 A CN202010966924 A CN 202010966924A CN 112081656 B CN112081656 B CN 112081656B
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- Prior art keywords
- bypass valve
- sealing sleeve
- outer sealing
- pressure measuring
- side driving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
- F02B37/162—Control of the pumps by bypassing charging air by bypassing, e.g. partially, intake air from pump inlet to pump outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a device and a method for detecting the air tightness of a bypass valve of a turbocharger, and particularly relates to the technical field of air tightness detection of bypass valves. According to the invention, through the combined action of the lifting driving device, the side driving device, the outer sealing sleeve, the pressure measuring device and the aerator, the bypass valve is directly placed in the outer sealing sleeve and fixed, so that the high-accuracy air tightness detection work can be carried out on the bypass valve.
Description
Technical Field
The invention relates to the technical field of bypass valve airtightness detection, in particular to a turbocharger bypass valve airtightness detection device and method.
Background
The turbocharger is actually an air compressor, the air intake is increased by compressing air, the turbine in a turbine chamber is pushed by the inertia impulse force of exhaust gas discharged by an engine, the turbine drives a coaxial impeller, the impeller pumps the air sent by an air filter pipeline to pressurize the air to enter an air cylinder, and the turbocharger system comprises an air inlet bypass valve, an exhaust bypass valve control device and the like besides the turbocharger.
In the production completion or daily maintenance work of bypass valve, need carry out gas tightness detection achievement, gas tightness detection device structure among the prior art is complicated, the operation degree of difficulty is big, and the convenience is extremely poor in daily use.
Disclosure of Invention
In order to solve the technical problems, the invention provides a device and a method for detecting the air tightness of a bypass valve of a turbocharger, which comprises a detection platform and a lifting driving device arranged on the detection platform, the output shaft of the lifting driving device is connected with two side driving devices which are fixed on the bypass valve, the number of the side driving devices is two, the two side driving devices move relatively to fix the two sides of the bypass valve, an outer sealing sleeve corresponding to the positions of the two side driving devices is arranged below the side driving devices, the inner part of the outer sealing sleeve is hollow, the outer sealing sleeve is communicated with the output end of the aerator through the shunt pipe and the column flow hole in sequence, after the bypass valve is fixed in the inner cavity of the outer sleeve, a sealed cavity is formed between the outer sleeve and the shunt pipe, the side face of the outer sealing sleeve is communicated with the input end of a pressure measuring device, and the pressure measuring device and the aerator are respectively installed on the detection platform.
In a preferred embodiment, a hollow cavity is opened in a side wall of the outer sleeve, a through hole communicated with the hollow cavity is opened on an inner side wall of the outer sleeve, and an input end of the pressure measuring device is communicated with an inner cavity of the outer sleeve through the hollow cavity and the through hole.
In a preferred embodiment, the lifting driving device is connected with the side driving devices through connecting brackets distributed transversely, and no less than two groups of side driving devices are mounted at the bottom of each connecting bracket.
In a preferred embodiment, a pressure plate is mounted on the opposite end of each set of two side drives, the shape of the pressure plate being adapted to the outer shape of the bypass valve, and a non-slip mat is mounted on the side of the pressure plate facing away from the side drives.
In a preferred embodiment, the inner cavity wall of the outer sealing sleeve is provided with a step plate for fixing bypass valves with different sizes, and the diameter value of the inner cavity of the outer sealing sleeve is reduced from top to bottom.
In a preferred embodiment, a spacing plate for fixing the spacing between the bypass valve and the bottom of the outer sealing sleeve is mounted at the bottom of the outer sealing sleeve, and a sealing plate for enhancing the sealing performance of the outer sealing sleeve is mounted outside the outer sealing sleeve.
A detection method of a turbocharger bypass valve airtightness detection apparatus, the detection method comprising:
the bypass valve is placed between two side driving devices, the two side driving devices move relatively, so that two pressing plates are respectively clamped at two sides of the bypass valve to fix the bypass valve;
the working lifting driving equipment drives the fixed bypass valve to vertically move into the outer sealing sleeve, and the bypass valve is sealed and fixed relative to the outer sealing sleeve; the air flow generated by the working aerator sequentially passes through the column flow hole and the shunt pipe and is injected into the outer sealing sleeve, the pressure measuring device detects the sealing performance of the bypass valve according to the air flow output by the aerator and the air flow value in the outer sealing sleeve, the air flow output by the aerator and the air flow and the pressure in the outer sealing sleeve can be efficiently and accurately judged according to the conversion relation of the air flow and the pressure.
The invention has the technical effects and advantages that:
through the combined action of the lifting driving device, the side driving device, the outer sealing sleeve, the pressure measuring device and the aerator, the bypass valve is directly placed in the outer sealing sleeve and fixed, and then the high-accuracy air tightness detection work can be carried out on the bypass valve.
Drawings
FIG. 1 is a left side view of the present invention;
FIG. 2 is a schematic diagram of the right view structure of the present invention;
FIG. 3 is a partial cross-sectional structural schematic of the present invention;
FIG. 4 is a schematic view of the combination structure of the connecting bracket, the lifting driving device and the side driving device in the present invention;
FIG. 5 is a schematic diagram of the independent structure of the outer boot of the present invention;
fig. 6 is a partially enlarged view of the structure shown at a in fig. 3 according to the present invention.
Description of reference numerals: the device comprises a test table 1, a lifting driving device 21, a side driving device 22, a connecting bracket 3, a pressure plate 4, an external sealing sleeve 51, a 511-step plate, a 512 through hole, a sealing plate 52, a 53-interval plate, a 6-pressure measuring device, a 7-inflator, a 71-column flow hole and a 72-shunt tube.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
As shown in fig. 1-6, the turbocharger bypass valve airtightness detection device and detection method comprises a detection table 1 and a lifting driving device 21 installed on the detection table 1, a side driving device 22 fixed to a bypass valve is connected to an output shaft of the lifting driving device 21, the number of the side driving devices 22 is two, two side driving devices 22 move relatively and are fixed to two sides of the bypass valve, an outer jacket 51 corresponding to the two side driving devices 22 is installed below the side driving device 22, the inner part of the outer jacket 51 is hollow, and the outer sealing sleeve 51 is communicated with the output end of the aerator 7 through a shunt tube 72 and a columnar flow hole 71 in sequence, after the bypass valve is fixed in the inner cavity of the outer sealing sleeve 51, a sealed cavity is formed between the outer sealing sleeve 51 and the shunt pipe 72, the side surface of the outer sealing sleeve 51 is communicated with the input end of the pressure measuring device 6, and the pressure measuring device 6 and the inflator 7 are respectively installed on the detection table 1.
A detection method of a turbocharger bypass valve airtightness detection device comprises the following steps:
the bypass valve is placed between two side driving devices 22, the two side driving devices 22 move relatively, and two pressing plates 4 are respectively clamped at two sides of the bypass valve to fix the bypass valve; the working lifting driving device 21 drives the fixed bypass valve to vertically move into the outer sealing sleeve 51, and the bypass valve is sealed and fixed relative to the outer sealing sleeve 51; the air flow generated by the working inflator 7 is injected into the outer sealing sleeve 51 through the cylindrical flow hole 71 and the shunt tube 72 in sequence, the pressure measuring device 6 detects the sealing performance of the bypass valve according to the air flow output by the inflator 7 and the air flow value in the outer sealing sleeve 51, the air flow output by the inflator 7 and the air flow and the pressure in the outer sealing sleeve 51 can efficiently and accurately judge the air sealing of the bypass valve according to the conversion relation of the air flow pressure.
A hollow cavity is arranged in the side wall of the outer sealing sleeve 51, a through hole 512 communicated with the hollow cavity is arranged on the inner side wall of the outer sealing sleeve 51, and the input end of the pressure measuring device 6 is communicated with the inner cavity of the outer sealing sleeve 51 through the hollow cavity and the through hole 512; under the effect of the through hole 512, the bypass valve is placed in the inner cavity of the outer sealing sleeve 51, the pressure measuring device 6 and the inflator 7 to perform air tightness detection on the bypass valve, the bypass valve is not in contact with the input end of the pressure measuring device 6, and the stability of the whole detection process is higher.
Connecting bracket 3 through transverse distribution links to each other between lift drive equipment 21 and the side drive equipment 22, and connecting bracket 3's bottom is installed and is no less than two sets of side drive equipment 22, through multiunit side drive equipment 22, fixed, carry out airtight detection to a plurality of bypass valves simultaneously, and whole testing process efficiency is higher.
The opposite ends of the two side driving devices 22 in each group are respectively provided with a pressing plate 4, the shape of each pressing plate 4 is matched with the external shape of the bypass valve, and one side of each pressing plate 4, which is far away from the side driving device 22, is provided with an anti-skid pad; when the side driving device 22 clamps and fixes the two sides of the bypass valve, the pressing plate 4 and the anti-slip pads on the pressing plate further enhance the clamping fixing strength of the bypass valve and prevent accidental slipping in the air tightness detection process.
The bottom of the outer sealing sleeve 51 is provided with a spacing plate 53 which enables the spacing between the bypass valve and the bottom of the outer sealing sleeve 51 to be fixed, the outer part of the outer sealing sleeve 51 is provided with a sealing plate 52 which strengthens the sealing performance of the outer sealing sleeve, an airflow cavity is formed between the bottom of the outer sealing sleeve 51 and the bypass valve through the effect of the spacing plate 53, airflow guided out by the inflator 7 is buffered, and the accuracy and the high efficiency of the air tightness detection of the bypass valve are further ensured under the combined effect of the sealing plate 52.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (6)
1. A turbocharger bypass valve airtightness detection device is characterized in that: the device comprises a detection table and lifting driving equipment arranged on the detection table, wherein side driving equipment fixed to a bypass valve is connected to an output shaft of the lifting driving equipment, the number of the side driving equipment is two, two side driving equipment move relatively to fix two sides of the bypass valve, an outer sealing sleeve corresponding to the positions of the two side driving equipment is arranged below the side driving equipment, the inner part of the outer sealing sleeve is hollow, the outer sealing sleeve is communicated with an output end of an aerator through a flow dividing pipe and a column flow hole in sequence, a sealing cavity is formed between the outer sealing sleeve and the flow dividing pipe after the bypass valve is fixed in an inner cavity of the outer sealing sleeve, the side surface of the outer sealing sleeve is communicated with an input end of a pressure measuring device, and the pressure measuring device and the aerator are arranged on the detection table respectively;
the pressure measuring device comprises an outer sealing sleeve, a pressure measuring device and a pressure measuring device, wherein a hollow cavity is arranged in the side wall of the outer sealing sleeve, a through hole communicated with the hollow cavity is formed in the inner side wall of the outer sealing sleeve, and the input end of the pressure measuring device is communicated with the inner cavity of the outer sealing sleeve through the hollow cavity and the through hole.
2. The turbocharger bypass valve airtightness detection apparatus according to claim 1, characterized in that: lifting drive equipment links to each other through transversely distributed's linking bridge between with the side drive equipment, and linking bridge's bottom is installed and is no less than two sets of side drive equipment.
3. The turbocharger bypass valve airtightness detection apparatus according to claim 2, characterized in that: and the opposite ends of the two side driving devices in each group are respectively provided with a pressing plate, the shape of the pressing plate is matched with the external shape of the bypass valve, and one side of the pressing plate, which deviates from the side driving devices, is provided with an anti-skid pad.
4. The turbocharger bypass valve airtightness detection apparatus according to claim 1, characterized in that: the inner cavity wall of the outer sealing sleeve is provided with a step plate for fixing bypass valves of different sizes, and the diameter value of the inner cavity of the outer sealing sleeve is sequentially reduced from top to bottom.
5. The turbocharger bypass valve airtightness detection apparatus according to claim 1 or 4, characterized in that: and a spacing plate for fixing the spacing between the bypass valve and the cavity bottom of the outer sealing sleeve is arranged at the cavity bottom of the outer sealing sleeve, and a sealing plate for enhancing the sealing property of the outer sealing sleeve is arranged outside the outer sealing sleeve.
6. A detection method of a turbocharger bypass valve airtightness detection apparatus applied to the turbocharger bypass valve airtightness detection apparatus according to any one of claims 1 to 5, characterized by comprising:
the bypass valve is placed between two side driving devices, the two side driving devices move relatively, so that two pressing plates are respectively clamped at two sides of the bypass valve to fix the bypass valve;
the working lifting driving equipment drives the fixed bypass valve to vertically move into the outer sealing sleeve, and the bypass valve is sealed and fixed relative to the outer sealing sleeve;
the air flow generated by the working aerator is injected into the outer sealing sleeve through the column flow hole and the shunt pipe in sequence, and the pressure measuring device detects the sealing performance of the bypass valve according to the air flow output by the aerator and the air flow value in the outer sealing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010966924.2A CN112081656B (en) | 2020-09-15 | 2020-09-15 | Device and method for detecting air tightness of bypass valve of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010966924.2A CN112081656B (en) | 2020-09-15 | 2020-09-15 | Device and method for detecting air tightness of bypass valve of turbocharger |
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| Publication Number | Publication Date |
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| CN112081656A CN112081656A (en) | 2020-12-15 |
| CN112081656B true CN112081656B (en) | 2022-05-17 |
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| CN202010966924.2A Active CN112081656B (en) | 2020-09-15 | 2020-09-15 | Device and method for detecting air tightness of bypass valve of turbocharger |
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| CN104024598B (en) * | 2011-12-27 | 2016-08-17 | 三菱重工业株式会社 | Exhaust gas by-pass valve and the exhaust-driven turbo-charger exhaust-gas turbo charger being furnished with exhaust gas by-pass valve |
| CN204679256U (en) * | 2015-04-27 | 2015-09-30 | 中航锂电（洛阳）有限公司 | Technique valve detects use gas seat and lithium battery technique valve detection device |
| CN105043744A (en) * | 2015-08-14 | 2015-11-11 | 太仓源凯汽车配件有限公司 | Performance test instrument of intake air bypass valve and using method thereof |
| CN206223372U (en) * | 2016-11-29 | 2017-06-06 | 常州市夏桑机电有限公司 | Coal gas valve chest leak-checking apparatus |
| CN207019848U (en) * | 2017-07-21 | 2018-02-16 | 宁波实隆轴承有限公司 | A kind of sealing property detection device of bearing |
| CN107654725A (en) * | 2017-09-28 | 2018-02-02 | 镇江三联泵业机械成套设备有限公司 | Valve gas leak detection device |
| CN207263402U (en) * | 2017-09-29 | 2018-04-20 | 驻马店中集华骏铸造有限公司 | Wheel hub air-tightness detection device |
| CN107843396B (en) * | 2017-09-30 | 2019-12-06 | 和县创智科技信息服务有限公司 | Sealing valve tightness detection device |
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| CN109060275B (en) * | 2018-07-26 | 2024-10-01 | 青岛华瑞汽车零部件股份有限公司 | Automobile speed reducer shell airtight detection device and detection method thereof |
| CN209027745U (en) * | 2018-11-02 | 2019-06-25 | 北京金迪创业科技有限公司 | A kind of by-pass valve actuator automatic detection device |
| CN109374236B (en) * | 2018-12-25 | 2020-12-15 | 嘉兴日昌汽车配件有限公司 | Performance detection device for air inlet bypass valve capable of accurately leaking by matching rotating speed with oil pressure |
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