CN100490590C - Induction heating device for processing crank red sleeve of low speed diesel engine for ship - Google Patents
Induction heating device for processing crank red sleeve of low speed diesel engine for ship Download PDFInfo
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- CN100490590C CN100490590C CNB2005100308403A CN200510030840A CN100490590C CN 100490590 C CN100490590 C CN 100490590C CN B2005100308403 A CNB2005100308403 A CN B2005100308403A CN 200510030840 A CN200510030840 A CN 200510030840A CN 100490590 C CN100490590 C CN 100490590C
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- inductor
- control device
- low speed
- diesel engine
- induction heating
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Abstract
This invention relates to an induction heating device and a method for processing low speed diesel engine crank hot jackets used in ships, in which, the device includes a first inducer, a second inducer, a first control device and a second control device and a cooling system, in which, the first control device is used in controlling power of the first inducer to control heating temperature of hot jacket holes, the second control device is used in controlling power of the second inducer to control the temperature compensation for heating the crank hot jacket hole, the cooling system includes a water tank and a water-tube system for cooling, the bellcrank temperature rises steadily and is heated uniformly and the hot jacket hole is enlarged uniformly strictly according to roundness so as to meet the needs of the processing.
Description
Technical field
The present invention relates to a kind of induction heating equipment of crank red sleeve of low speed diesel engine for ship processing.
Background technology
At present, the heater of crank red sleeve of low speed diesel engine for ship processing is generally gas-operated thermal bath facility, comprises a circular shape heater that has a plurality of nozzles and a straight tube heater that has plurality of nozzles equally that is connected by the gas connection pipe road.This combustion gas heating means obviously have the following disadvantages when reality is used:
1. dangerous: because this kind mode of heating adopts the naked light heating, be again to adopt the propane gas of proportion greater than air specific weight, in case propane gas has leakage in time not found, then this gas can produce depositional phenomenon at the scene.When depositing to certain proportion, running into Mars will set off an explosion.There is bigger potential safety hazard in therefore this mode of heating.
2. hot jacket hole heating back ovality is bigger: because heated air is a kind of mist, must after the pressure-reducing valve decompression, send into propane gas and compressed air in the gas mixer respectively more earlier, draw pipeline again to heater by blender, crank is heated by the plurality of nozzles that distributes on the heater.Owing to passed through these links, the heated at various points temperature on the circular shape heater is uneven.And flame can't be accomplished stepless, continuous conciliation.Therefore, the temperature of heated ring-type object also is uneven, and the each point temperature difference big (generally at 20-50 degree).Therefore, the hot jacket hole ovality after the heating also is bigger (generally at 30-50).Work has brought certain risk to hot jacket for this, has increased work difficulty.
3. increased polishing man-hour:, cause hot jacket hole and crank surface that a large amount of carbon distributions, putty are arranged because handle alkane gas is difficult to burning cmpletely during heating.When having increased the artificial polishing behind the cover, cleaner.
4. heating cost is higher: during the combustion gas heating, heat imports heated object into by external flame, have a large amount of heats directly to be dispersed in the atmosphere during heating, so efficient is lower.
5. heating time is long: winter, because ambient temperature is low, heating time was long when heating, and therefore, temperature is difficult to control evenly.
Summary of the invention
In order to overcome the defective of above-mentioned combustion gas mode of heating, it is low to the invention provides a kind of safe, cleaning, saving of labor, efficiency of heating surface height, expense, has improved the induction heating equipment of crank red sleeve of low speed diesel engine for ship processing of the control precision of hot jacket heating simultaneously again.
The induction heating equipment of a kind of crank red sleeve of low speed diesel engine for ship processing provided by the present invention, comprise that first inductor and that is round shape is positioned at second inductor of this first inductor below, it is characterized in that, it also comprises: a first control device that links to each other with first inductor and a second control device that links to each other with second inductor, and a cooling system; Wherein: first control device is used to control the power of first inductor, by the adjustment of this power, reaches the control to crankshaft red shrinkage hole heating-up temperature; Second control device is used to control the power of second inductor, by the adjustment of this power, reaches the control to the temperature-compensating of crankshaft red shrinkage hole heating; Cooling system comprises the water pipe system that cools off for first inductor, second inductor, first control device and second control device respectively that a water tank and links to each other with this water tank.
In the induction heating equipment of above-mentioned crank red sleeve of low speed diesel engine for ship processing, also comprise two be connected in parallel between first inductor and the first control device respectively, first, second capacitive means between second inductor and the second control device, be used for moment started and carry out current compensation.
In the induction heating equipment of above-mentioned crank red sleeve of low speed diesel engine for ship processing, first inductor is a rounded pipeloop that is turned to by square copper pipe.
In the induction heating equipment of above-mentioned crank red sleeve of low speed diesel engine for ship processing, second inductor is a pipeloop that is turned to by the square copper pipe of straight shape or bending.
In the induction heating equipment of above-mentioned crank red sleeve of low speed diesel engine for ship processing, water pipe system comprises respectively feed pipe and the return pipe that links to each other with second control device with first inductor, second inductor, first control device.
In the induction heating equipment of above-mentioned crank red sleeve of low speed diesel engine for ship processing, first inductor all is to link to each other by the Water cooling cable capacitive means corresponding with it with second inductor.
In the induction heating equipment of above-mentioned crank red sleeve of low speed diesel engine for ship processing, on the feed pipe in water tank exit, connect a tubing pump, a Pressure gauge and a ball valve respectively successively.
In the induction heating equipment of above-mentioned crank red sleeve of low speed diesel engine for ship processing, on the feed pipe of first control device, second control device, connect a water inlet control valve respectively.
The present invention also provides a kind of induction heating method of crank red sleeve of low speed diesel engine for ship processing, it is characterized in that: in the crankshaft red shrinkage hole, place first inductor that a shape and hot jacket hole are complementary, and below this is positioned at this first inductor, place one second inductor; To this first inductor energising, utilize the inductive loop that produces in place, hot jacket hole that its crank throw is heated, simultaneously second inductor is switched on, to the heating of compensating property of crank throw, to keep hot jacket hole temperature equalization.
Adopted above-mentioned technical solution, the present invention is used in the hot jacket course of processing of crank axle for vessel, the crank throw temperature of heated object bent axle rises stable, be heated evenly, temperature control precision height, the temperature difference are controlled in 10 degree, and after heating, the hot jacket hole of bent axle heated object evenly enlarges in strict accordance with circle, thereby meets the technological requirement of crankshaft red shrinkage processing.The present invention has advantages such as safety, cleaning, saving of labor, efficiency of heating surface height and expense are low.
Description of drawings
Fig. 1 is the structural representation of induction heating equipment of the present invention;
Fig. 2 is the structural representation that the present invention is used for crankshaft red shrinkage processing.
Embodiment
Shown in Fig. 1～2, the present invention, a kind of induction heating equipment of crank red sleeve of low speed diesel engine for ship processing, comprise that first inductor 11 and that is round shape is positioned at second inductor 12 of these first inductor, 11 belows, first control device 21 that links to each other with first inductor 11 and the second control device 22 that links to each other with second inductor 12, two be connected in parallel between first inductor and the first control device respectively, first, second capacitive means 31,32 between second inductor and the second control device, an and cooling system.
First control device can adopt common output control device, is used to control the power of first inductor, by the adjustment of this power, reaches the control to crankshaft red shrinkage hole heating-up temperature.
Second control device can adopt common output control device, is used to control the power of second inductor, by the adjustment of this power, reaches the control to the temperature-compensating of crankshaft red shrinkage hole heating.
First, second capacitive means 31,32 is used for current compensation is carried out in the moment startup.
Cooling system comprises the water pipe system that cools off for first inductor, second inductor, first control device and second control device respectively that a water tank 4 and links to each other with this water tank 4.
Water pipe system comprises respectively feed pipe and the return pipe that links to each other with second control device with first inductor, second inductor, first control device.
On the feed pipe in water tank exit, connect a tubing pump 41, a Pressure gauge 42 and a ball valve 43 respectively successively.
On the feed pipe of first control device 21, second control device 22, connect a water inlet control valve 44 respectively.
The present invention also provides a kind of induction heating method of crank red sleeve of low speed diesel engine for ship processing, referring to Fig. 2, in the crankshaft red shrinkage hole, place first inductor 11 that a shape and hot jacket hole are complementary, and below this is positioned at this first inductor 11, place one second inductor 12; To these first inductor, 11 energisings, utilize the inductive loop that produces in place, hot jacket hole that its crank throw is heated, simultaneously second inductor 12 is switched on, to the heating of compensating property of crank throw, to keep hot jacket hole temperature equalization.
In sum, the present invention is in the hot jacket course of processing of crankshaft used for large boat, make the hot jacket hole be heated evenly, the maximum temperature difference at each position, hot jacket hole has been controlled in 10 degrees centigrade, and temperature rises stable, stopped temperature and risen too fast and the too high phenomenon of temperature, that has taken into account hot jacket simultaneously carries out quality with hot jacket smoothly, meets the requirement of processing technology comprehensively.In addition, on heating cost, through repeatedly surveying, calculate, the electricity consumption heating cost is than usefulness gas heating cost low by 10%-15% (because of electric heating time, heat results from the inside of heated object, so thermal loss is few, the efficient height).
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong within the category of the present invention, should be limited by each claim.
Claims (6)
1. the induction heating equipment of crank red sleeve of low speed diesel engine for ship processing comprises that first inductor and that is round shape is positioned at second inductor of this first inductor below, is characterized in that it also comprises:
One first control device that links to each other with first inductor and a second control device that links to each other with second inductor,
Two be connected in parallel between first inductor and the first control device respectively, first, second capacitive means between second inductor and the second control device, this first, second capacitive means is used for current compensation is carried out in the moment startup, and described first inductor all is to link to each other by the Water cooling cable capacitive means corresponding with it with second inductor; And
One cooling system; Wherein:
First control device is used to control the power of first inductor, by the adjustment of this power, reaches the control to crankshaft red shrinkage hole heating-up temperature;
Second control device is used to control the power of second inductor, by the adjustment of this power, reaches the control to the temperature-compensating of crankshaft red shrinkage hole heating;
Cooling system comprises the water pipe system that cools off for first inductor, second inductor, first control device and second control device respectively that a water tank and links to each other with this water tank.
2. the induction heating equipment of crank red sleeve of low speed diesel engine for ship according to claim 1 processing is characterized in that: described first inductor is a rounded pipeloop that is turned to by square copper pipe.
3. the induction heating equipment of crank red sleeve of low speed diesel engine for ship according to claim 2 processing is characterized in that: described second inductor is a pipeloop that is turned to by the square copper pipe of straight shape or bending.
4. the induction heating equipment of crank red sleeve of low speed diesel engine for ship according to claim 1 processing is characterized in that: described water pipe system comprises respectively feed pipe and the return pipe that links to each other with second control device with first inductor, second inductor, first control device.
5. the induction heating equipment of crank red sleeve of low speed diesel engine for ship processing according to claim 1 is characterized in that: connect a tubing pump, a Pressure gauge and a ball valve respectively successively on the feed pipe in described water tank exit.
6. the induction heating equipment of crank red sleeve of low speed diesel engine for ship processing according to claim 4 is characterized in that: connect a water inlet control valve respectively on the feed pipe of described first control device, second control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100308403A CN100490590C (en) | 2005-10-28 | 2005-10-28 | Induction heating device for processing crank red sleeve of low speed diesel engine for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100308403A CN100490590C (en) | 2005-10-28 | 2005-10-28 | Induction heating device for processing crank red sleeve of low speed diesel engine for ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1956608A CN1956608A (en) | 2007-05-02 |
| CN100490590C true CN100490590C (en) | 2009-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100308403A Expired - Fee Related CN100490590C (en) | 2005-10-28 | 2005-10-28 | Induction heating device for processing crank red sleeve of low speed diesel engine for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100490590C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009339B (en) * | 2009-09-04 | 2012-06-13 | 上海船厂船舶有限公司 | Method for shrinking overlength bush |
| CN109587855A (en) * | 2018-11-30 | 2019-04-05 | 上海海事大学 | A kind of electromagnetic induction heater for crankshaft red shrinkage |
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2005
- 2005-10-28 CN CNB2005100308403A patent/CN100490590C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
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| CN1956608A (en) | 2007-05-02 |
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| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20091130 |