CN105588721A - Closed heating system of heat transfer test stand for oscillating oil chamber of engine piston - Google Patents
Closed heating system of heat transfer test stand for oscillating oil chamber of engine piston Download PDFInfo
- Publication number
- CN105588721A CN105588721A CN201510934694.0A CN201510934694A CN105588721A CN 105588721 A CN105588721 A CN 105588721A CN 201510934694 A CN201510934694 A CN 201510934694A CN 105588721 A CN105588721 A CN 105588721A
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder sleeve
- heat transfer
- heating system
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
Abstract
The invention provides a closed heating system of a heat transfer test stand for the oscillating oil chamber of an engine piston. The system comprises an engine body, a cylinder sleeve, a piston, a tee joint, an air-intake duct, an air-outlet duct and a heating channel. The piston is arranged inside the cylinder sleeve while being capable of sliding up and down inside the cylinder sleeve. The sidewall of the piston is in contact with and in seal fit with the inner wall of the cylinder sleeve. The outer-end opening of the cylinder sleeve is in sealed connection with the interface of the first channel of the tee joint. The interface of the second channel of the tee joint is internally provided with a first one-way valve. The interface of the second channel of the tee joint is in sealed communication with the outlet of the air-intake duct. The inlet of the air-intake duct is in sealed communication with the outlet of the heating channel. The interface of the third channel of the tee joint is internally provided with a second one-way valve. The interface of the third channel is in sealed communication with the inlet of the air-outlet duct. The outlet of the air-outlet duct is in sealed communication with the inlet of the heating channel. According to the technical scheme of the closed heating system of the heat transfer test stand for the oscillating oil chamber of the engine piston, the closed-loop circulation is realized and the one-way flow of the air flow is enabled. Meanwhile, the air backflow problem caused by the reciprocating motion of the piston is overcome.
Description
Technical field
The invention belongs to closed heating system technical field, especially relate to the closed heating system of a kind of engine piston concussion oil pocket Experimental Study of Heat Transfer platform.
Background technology
Piston is the key components and parts of engine, in engine operation process, bears periodically effect of high-temperature fuel gas, has high thermic load. Follow the increase of HP, hp/litre, the thermic load of piston significantly promotes, and thermic load how to evaluate piston has become the key technology of new work engine research and development. Whether the key of carrying out at present simulation evaluation Study on Thermal Load can obtain a set of accurate thermal boundary condition, piston temperature field calculating is simultaneously the pith of pistons work reliability consideration, as the most effectual way that reduces piston temperature, flowing in piston oil spout concussion cooling procedure can be calculated more accurate third boundary condition is provided for piston temperature field with diabatic process, draw piston temperature field distribution more accurately, thereby rational design is provided and evaluates foundation for piston oil spout concussion is cooling.
Piston concussion oil pocket Experimental Study of Heat Transfer is difficult to carry out on engine complete machine. How effectively to simulate hot conditions in cylinder, piston is distributed and approach with actual, and can simulate piston concussion heat exchange and become the key technology of piston test assessment. Aspect the heat transfer of piston concussion oil pocket, " cooling steady, the transient simulation of piston oil spout concussion calculates and piston temperature field analysis " of Shandong University, " piston inner-cooling oil recess and the cooling jet Primary Study " of Bohai Piston Co., Ltd., Bingzhou City, Shandong Prov. all do not relate to heater at present. Design effective piston concussion oil pocket heating system and become the bottleneck problem that restriction concussion oil pocket experimental technique urgent need breaks through.
The gas that the present invention has solved the generation in the time moving back and forth of component-level testing stand piston by a kind of simple closed heater again flows into the problem of air intake duct backflow and can ensure the gas for higher temperature that enters cylinder, and can calculate fast and effectively recuperated gas flow, and measure into air outlet temperature, further calculate gas converting heat amount.
Summary of the invention
In view of this, the present invention is intended to propose the closed heating system of a kind of engine piston concussion oil pocket Experimental Study of Heat Transfer platform, to solve the not smart problem of recuperated gas flow rate calculation.
For achieving the above object, technical scheme of the present invention is achieved in that
The closed heating system of a kind of engine piston concussion oil pocket Experimental Study of Heat Transfer platform, comprises body, cylinder sleeve, piston, threeway, intake stack, wind pipe and heat tunnel;
Described cylinder sleeve is fixed on described body, and described piston can slide up and down to be arranged in described cylinder sleeve, and the sidewall of this piston and the inwall of described cylinder sleeve contact and be sealed and matched, and the outer end opening of described cylinder sleeve is communicated with the first passage sealing joint of described threeway;
In the second channel interface of described threeway, be provided with the first check valve, this second channel interface is communicated with the exit seal of described intake stack, and the import of this intake stack is communicated with the exit seal of described heat tunnel;
In the third channel interface of described threeway, be provided with the second check valve, this third channel interface is communicated with the inlet seal of described wind pipe, and the outlet of this wind pipe is communicated with the inlet seal of described heat tunnel.
Further, described first passage interface is communicated with the outer end opening sealing of described cylinder sleeve by the first flange.
Further, described second channel interface is communicated with the exit seal of described intake stack by the second flange.
Further, described heat tunnel comprises burner hearth and is installed in the nickel chromium triangle electric furnace heating wire in described burner hearth by ceramic terminal.
Further, described the first check valve and the second check valve are EGR check valve, the highest 20HZ that is not less than of open frequency of this EGR check valve.
Further, the edge of described the first flange and the second flange passes through bolted.
With respect to prior art, the closed heating system of engine piston concussion oil pocket Experimental Study of Heat Transfer platform of the present invention has following advantage:
(1) the closed heating system of engine piston concussion oil pocket Experimental Study of Heat Transfer platform of the present invention, reduce energy consumption, device is simple, be easy to purchase, there is the advantages such as energy-saving and emission-reduction, hot conditions in simulation cylinder, the long-time 650K hot gas of left and right can be provided, the circulation of remaining silent, air-flow one-way flow, can overcome the gas backstreaming problem that reciprocating motion of the pistons produces.
Brief description of the drawings
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is the closed heating system structural representation of engine piston concussion oil pocket Experimental Study of Heat Transfer platform described in the embodiment of the present invention;
Description of reference numerals:
1-body; 2-cylinder sleeve; 3-piston; 4-threeway; 41-first passage interface; 42-second channel interface; 43-third channel interface; 44-the first flange; 45-the second flange; 46-bolt; 5-intake stack; 6-wind pipe; 7-heat tunnel; 71-burner hearth; 72=pottery terminal; 73-nickel chromium triangle electric furnace heating wire; 81-the first check valve; 82-the second check valve.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the present invention can combine mutually.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of instructions such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention. in addition, term " first ", " second " etc. are only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic. thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second " etc. in description of the invention, except as otherwise noted, the implication of " multiple " is two or more.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals. For the ordinary skill in the art, can understand above-mentioned term concrete meaning in the present invention by concrete condition.
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
As shown in Figure 1, the present invention includes body 1, cylinder sleeve 2, piston 3, threeway 4, intake stack 5, wind pipe 6 and heat tunnel 7;
Cylinder sleeve 2 is fixed on body 1, and piston 3 can slide up and down to be arranged in cylinder sleeve 2, and the sidewall of this piston 3 contacts and be sealed and matched with the inwall of cylinder sleeve 2, and the outer end opening of cylinder sleeve 2 is communicated with first passage interface 41 sealings of threeway 4;
In the second channel interface 42 of threeway 4, be provided with the first check valve 81, this second channel interface 42 is communicated with the exit seal of intake stack 5, and the import of this intake stack 5 is communicated with the exit seal of heat tunnel 7;
In the third channel interface 43 of threeway 4, be provided with the second check valve 82, this third channel interface 43 is communicated with the inlet seal of wind pipe 6, and the outlet of this wind pipe 6 is communicated with the inlet seal of heat tunnel 7.
First passage interface 41 is communicated with the outer end opening sealing of cylinder sleeve 2 by the first flange 44.
Second channel interface 42 is communicated with the exit seal of intake stack 5 by the second flange 45.
Heat tunnel 7 comprises burner hearth 71 and is installed in the nickel chromium triangle electric furnace heating wire 73 in burner hearth 71 by ceramic terminal 72.
The first check valve 81 and the second check valve 82 are EGR check valve, the highest 20HZ that is not less than of open frequency of this EGR check valve.
The edge of the first flange 44 and the second flange 45 is fastening by bolt 46.
The course of work of the present invention is: in the descending process of piston 3, threeway 4 internal pressures reduce, and the first check valve 81 is opened, and the second check valve 82 is closed, and the hot blast after heat tunnel 7 heating enters threeway 4 inside by intake stack 5 and the first check valve 81; In the up process of piston 3, threeway 4 internal pressures raise, and the first check valve 81 is closed, the second check valve 82 is opened, and the hot blast in threeway 4 enters heat tunnel 7 by the second check valve 82 and wind pipe 6 and reheats, hot blast by piston 3 move up and down change pressure, the circulation of remaining silent in heat tunnel 7, heating piston 3, under nickel chromium triangle electric furnace heating wire 71 high temperature, intensity is high, nonmagnetic, corrosion-resistant, be fixed on ceramic terminal 72, the controlled air themperature that heats, heats more even. The controlled flow direction that heats wind of air-flow one-way flow, EGR check valve open frequency can reach 20Hz, meets the large-scale diesel engine that flow and switching frequency is had to requirement.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. the closed heating system of engine piston concussion oil pocket Experimental Study of Heat Transfer platform, is characterized in that: comprise body, cylinder sleeve, piston, threeway, intake stack, wind pipe and heat tunnel;
Described cylinder sleeve is fixed on described body, and described piston can slide up and down to be arranged in described cylinder sleeve, and the sidewall of this piston and the inwall of described cylinder sleeve contact and be sealed and matched, and the outer end opening of described cylinder sleeve is communicated with the first passage sealing joint of described threeway;
In the second channel interface of described threeway, be provided with the first check valve, this second channel interface is communicated with the exit seal of described intake stack, and the import of this intake stack is communicated with the exit seal of described heat tunnel;
In the third channel interface of described threeway, be provided with the second check valve, this third channel interface is communicated with the inlet seal of described wind pipe, and the outlet of this wind pipe is communicated with the inlet seal of described heat tunnel.
2. the closed heating system of engine piston concussion oil pocket Experimental Study of Heat Transfer platform according to claim 1, is characterized in that: described first passage interface is communicated with the outer end opening sealing of described cylinder sleeve by the first flange.
3. the closed heating system of engine piston concussion oil pocket Experimental Study of Heat Transfer platform according to claim 2, is characterized in that: described second channel interface is communicated with the exit seal of described intake stack by the second flange.
4. the closed heating system of engine piston concussion oil pocket Experimental Study of Heat Transfer platform according to claim 1, is characterized in that: described heat tunnel comprises burner hearth and is installed in the nickel chromium triangle electric furnace heating wire in described burner hearth by ceramic terminal.
5. the closed heating system of engine piston concussion oil pocket Experimental Study of Heat Transfer platform according to claim 1, is characterized in that: described the first check valve and the second check valve are EGR check valve the highest 20HZ that is not less than of open frequency of this EGR check valve.
6. the closed heating system of engine piston concussion oil pocket Experimental Study of Heat Transfer platform according to claim 3, is characterized in that: the edge of described the first flange and the second flange passes through bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934694.0A CN105588721B (en) | 2015-12-14 | 2015-12-14 | A kind of engine piston shakes the closed heating system of oil pocket Experimental Study of Heat Transfer platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934694.0A CN105588721B (en) | 2015-12-14 | 2015-12-14 | A kind of engine piston shakes the closed heating system of oil pocket Experimental Study of Heat Transfer platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105588721A true CN105588721A (en) | 2016-05-18 |
| CN105588721B CN105588721B (en) | 2018-05-04 |
Family
ID=55928467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510934694.0A Active CN105588721B (en) | 2015-12-14 | 2015-12-14 | A kind of engine piston shakes the closed heating system of oil pocket Experimental Study of Heat Transfer platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105588721B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668738A (en) * | 2019-02-28 | 2019-04-23 | 北京理工大学 | A kind of piston temperature field simulation test device and test method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5744705A (en) * | 1995-08-07 | 1998-04-28 | Chevron U.S.A. Inc. | Method and apparatus for engine testing |
| US6561014B1 (en) * | 2000-10-20 | 2003-05-13 | Delphi Technologies, Inc. | Altitude simulator for dynamometer testing |
| CN101793606A (en) * | 2010-03-30 | 2010-08-04 | 山东大学 | Machine-heating load fatigue test device of engine cylinder head |
| CN203114490U (en) * | 2013-01-18 | 2013-08-07 | 中国石油大学(华东) | Fuel electric-water-combining heating system of diesel engine |
| CN103234739A (en) * | 2013-04-01 | 2013-08-07 | 中国北方发动机研究所(天津) | Apparatus and method for testing thermal fatigue of cylinder covers |
| CN103604592A (en) * | 2013-11-18 | 2014-02-26 | 北京理工大学 | Engine piston heat-mechanical load coupling fatigue test system |
-
2015
- 2015-12-14 CN CN201510934694.0A patent/CN105588721B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5744705A (en) * | 1995-08-07 | 1998-04-28 | Chevron U.S.A. Inc. | Method and apparatus for engine testing |
| US6561014B1 (en) * | 2000-10-20 | 2003-05-13 | Delphi Technologies, Inc. | Altitude simulator for dynamometer testing |
| CN101793606A (en) * | 2010-03-30 | 2010-08-04 | 山东大学 | Machine-heating load fatigue test device of engine cylinder head |
| CN203114490U (en) * | 2013-01-18 | 2013-08-07 | 中国石油大学(华东) | Fuel electric-water-combining heating system of diesel engine |
| CN103234739A (en) * | 2013-04-01 | 2013-08-07 | 中国北方发动机研究所(天津) | Apparatus and method for testing thermal fatigue of cylinder covers |
| CN103604592A (en) * | 2013-11-18 | 2014-02-26 | 北京理工大学 | Engine piston heat-mechanical load coupling fatigue test system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668738A (en) * | 2019-02-28 | 2019-04-23 | 北京理工大学 | A kind of piston temperature field simulation test device and test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105588721B (en) | 2018-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105606386B (en) | A kind of testing stand suitable for compact instantaneous heat exchanger is pre-chilled by force | |
| CN203702312U (en) | Bypass type engine cooling system | |
| CN107196011A (en) | A kind of New energy automobile motor coolant recovery system and recovery method | |
| CN207856896U (en) | A kind of energy saving TCU systems and the reaction kettle equipped with energy saving TCU systems | |
| CN202928802U (en) | Deep thermal shock and constant-temperature test device | |
| CN105588721A (en) | Closed heating system of heat transfer test stand for oscillating oil chamber of engine piston | |
| CN103175732B (en) | Test bed for simulating thermal fatigue phenomenon of nuclear power station pipeline | |
| CN208653804U (en) | A kind of EGR cooling experiment device | |
| CN104635794A (en) | Apparatus for precisely regulating intake temperature by water cooling | |
| CN105156235A (en) | Explosion-proof electrically controlled EGR system for mine | |
| CN205157202U (en) | Experimental intercooler simulation temperature control device of engine | |
| CN204492956U (en) | A kind of use for diesel engine water-cooled and air-cooled interactive sink | |
| CN206648823U (en) | High temperature oil fluid power pulsating fatigue pilot system | |
| CN102374079A (en) | Oil level sensor assembly with heating function | |
| CN104634586A (en) | Quick safety cooling device for organic heat transfer material heater of heat source simulation system | |
| CN206479415U (en) | A kind of test device for high temperature tension test cooling system | |
| CN112461888B (en) | High-temperature and high-pressure examination test device and method for heat storage hollow brick and furnace lining | |
| CN205744599U (en) | A kind of volute of blower waste-heat recovery device | |
| CN207847802U (en) | A kind of gas supply device | |
| CN203164047U (en) | Test rack for simulating pipeline thermal fatigue phenomenon of nuclear power plant | |
| CN206555029U (en) | A kind of Stirling engine air manager | |
| CN202300705U (en) | Pneumatic-internal combustion mixed dynamic system based on cooling water waste heat multi-level utilization | |
| CN205823489U (en) | A kind of cooler for recycled exhaust gas for electromotor | |
| CN209147050U (en) | A kind of steam-heated conduction oil temperature control system | |
| CN207832452U (en) | A kind of experimental provision for strengthening cooling engine piston using nano-fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |