CN210087525U - Low-temperature starting diesel engine and generator set - Google Patents
Low-temperature starting diesel engine and generator set Download PDFInfo
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- CN210087525U CN210087525U CN201921038713.1U CN201921038713U CN210087525U CN 210087525 U CN210087525 U CN 210087525U CN 201921038713 U CN201921038713 U CN 201921038713U CN 210087525 U CN210087525 U CN 210087525U
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Abstract
The utility model relates to an internal-combustion engine field provides a low temperature start diesel engine and generating set, the low temperature start diesel engine includes: the oil pump is communicated with the shell through the oil inlet pipe and the oil outlet pipe respectively, an oil inlet hole and an oil outlet hole are formed in a box body of the heat insulation box, and the oil inlet hole and the oil outlet hole are communicated with the oil outlet pipe through the first electromagnetic valve and the second electromagnetic valve respectively. The utility model discloses a low temperature starting diesel engine is on the one hand through when the shutdown, utilizes the heat engine oil of oil pump in with the casing to carry and keep warm in the insulation can, on the other hand, the utility model discloses a low temperature starting diesel engine keeps warm to heat engine oil through utilizing the insulation can, need not other energy and heats engine oil, has simplified equipment structure, has strengthened the steady setting of equipment operation.
Description
Technical Field
The utility model relates to an internal-combustion engine technical field, in particular to low temperature start diesel engine and generating set.
Background
The diesel engine (diesel engine for short) burns diesel oil to obtain energy and release, and has the advantages of large torque and good economic performance, so the diesel engine is widely applied to large-scale engineering machinery.
Each working cycle of the diesel engine comprises four strokes of air intake, compression, work application and exhaust, and because the fuel for the diesel engine is diesel oil, the viscosity of the fuel is higher than that of gasoline, the fuel is not easy to evaporate, and the self-ignition temperature of the fuel is lower than that of the gasoline, the mixed gas in the cylinder of the diesel engine is compression-ignited.
The temperature and the pressure in the cylinder of the diesel engine are too low at the end of a compression stroke due to low temperature and low rotating speed of the crankshaft in winter, so that the temperature cannot reach the spontaneous combustion ignition temperature of fuel, and the diesel engine is difficult to start.
SUMMERY OF THE UTILITY MODEL
The inventor of the utility model discovers through research: because the mobility of the engine oil in the crankcase is poor under the low-temperature environment, the viscosity is high, the resistance of the crankshaft rotation is increased, the rotating speed of the crankshaft is influenced, the rotating speed of the crankshaft is low, the moving speed of the piston is low, the time of a compression stroke is prolonged, heat loss is large, the temperature in the cylinder of the diesel engine cannot reach the spontaneous ignition temperature of fuel, and finally the diesel engine is difficult to start.
In view of this, the utility model aims at providing a low temperature start diesel engine and generating set, this low temperature start diesel engine can utilize the oil pump to carry the hot engine oil in the casing to the heat-preserving box in keep warm, when using next time, carries the machine oil to the casing in again, avoids machine oil to obstruct the crankshaft when the diesel engine starts and rotates.
In order to achieve the above object, the utility model provides a low temperature starting diesel engine on the one hand, include: a shell, an oil pump, a heat preservation box, an oil inlet pipe, an oil outlet pipe, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a storage battery and a controller,
the oil pump is respectively communicated with the shell through an oil inlet pipe and an oil outlet pipe,
an oil inlet and an oil outlet are arranged on the box body of the heat preservation box, the oil inlet and the oil outlet are respectively communicated with the oil outlet pipe through the first electromagnetic valve and the second electromagnetic valve,
the third electromagnetic valve is connected with the heat insulation box in parallel and is arranged on the oil outlet pipe,
the first solenoid valve, the second solenoid valve and the third solenoid valve are simultaneously electrically connected with the controller and the storage battery.
Preferably, the periphery of the box body of the heat preservation box is wrapped with a heat preservation material.
Preferably, the periphery of the oil inlet pipe and the oil outlet pipe is wrapped with a heat insulation material.
Preferably, the low-temperature starting diesel engine further comprises an electric heater, the electric heater is installed in the heat insulation box, and the electric heater is electrically connected with the storage battery.
Preferably, install temperature sensor in the oil inlet pipe, temperature sensor with the controller electricity is connected.
Preferably, the low-temperature starting diesel engine further comprises a motor, a rotating shaft of the motor is connected with the oil pump to drive the oil pump to rotate, and the motor is electrically connected with the storage battery.
Preferably, the oil inlet hole and the oil outlet hole are respectively arranged at the lower part and the upper part of the heat preservation box.
And simultaneously, the utility model provides a generating set, generating set include the generator with the low temperature start diesel engine, the generator includes the rotor, the low temperature start diesel engine pass through drive mechanism with the rotor is connected in order to drive the generator rotates.
Compared with the prior art, the utility model discloses a low temperature start diesel engine is on the one hand through when the shutdown, utilizes the heat engine oil of oil pump in with the casing to carry to the insulation can in keep warm, when starting the diesel engine next time, utilizes the oil pump to carry the machine oil in with the insulation can to the casing in, and such setting makes machine oil can not become sticky because of outside low temperature environment to make machine oil can not influence the rotation of bent axle in the start-up process of diesel engine, be favorable to the diesel engine to start under low temperature environment, on the other hand, the utility model discloses a low temperature start diesel engine keeps warm heat engine oil through utilizing the insulation can, need not other energy and heats machine oil, has simplified equipment structure, has strengthened the steady shape of equipment operation.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural diagram of a low-temperature start diesel engine of the present invention;
fig. 2 is a schematic diagram of the low-temperature starting diesel engine of the present invention.
Description of reference numerals:
1 casing 2 oil pump
3 motor 4 insulation can
5 oil inlet pipe and 6 oil outlet pipe
7 first solenoid valve 8 second solenoid valve
9 third electromagnetic valve 10 generator
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
According to an aspect of the present invention, there is provided a low temperature start diesel engine, as shown in fig. 1 and 2, comprising: a shell 1, an oil pump 2, a heat preservation box 4, an oil inlet pipe 5, an oil outlet pipe 6, a first electromagnetic valve 7, a second electromagnetic valve 8, a third electromagnetic valve 9, a storage battery and a controller,
the oil pump 2 is respectively communicated with the shell 1 through an oil inlet pipe 5 and an oil outlet pipe 6, one end of the oil inlet pipe 5 is connected with the oil pump 2, the other end of the oil inlet pipe is connected with the bottom of the shell 1, the arrangement is favorable for the oil pump 2 to pump the oil, in addition, the oil pump 2 is matched with a driving gear on a camshaft of the diesel engine, so that the oil pump 2 is driven to rotate when the camshaft rotates,
an oil inlet and an oil outlet are arranged on the box body of the heat preservation box 4, the oil inlet and the oil outlet are respectively communicated with the oil outlet pipe 6 through the first electromagnetic valve 7 and the second electromagnetic valve 8,
the third electromagnetic valve 9 is connected with the heat insulation box 4 in parallel and is arranged on the oil outlet pipe 6, so that the engine oil flowing out of the engine oil pump 2 can enter the shell 1 through the first electromagnetic valve 7, the heat insulation box 4 and the second electromagnetic valve 8, or can directly enter the shell 1 through the third electromagnetic valve 9,
the first solenoid valve 7, the second solenoid valve 8 and the third solenoid valve 9 are electrically connected to the controller and the battery at the same time.
The utility model discloses a low temperature start diesel engine is through when the shutdown, utilize the heat engine oil of oil pump 2 in with casing 1 to carry to the insulation can 4 in keep warm, when the diesel engine is started next time, utilize the oil pump 2 to carry the machine oil in the insulation can 4 to the casing 1 in, the machine oil at this moment can not become sticky because of outside low temperature environment, thereby make machine oil can not influence the rotation of bent axle in the start-up process of diesel engine, simultaneously, machine oil can also utilize the heat of self to heat casing 1, is favorable to the diesel engine to start under low temperature environment, the utility model discloses a low temperature start diesel engine keeps warm through utilizing insulation can 4 to heat engine oil, need not other energy and heats machine oil, has simplified equipment structure, has strengthened the steady shape of equipment operation.
In the above, in order to slow down the heat dissipation speed of the engine oil in the heat insulation box 4, the outer periphery of the box body of the heat insulation box 4 is wrapped with a heat insulation material.
In order to further improve the heat preservation effect on the engine oil, the peripheries of the oil inlet pipe 5 and the oil outlet pipe 6 are wrapped with heat preservation materials.
In the above, the thermal insulation material comprises a vacuum insulation panel.
In order to facilitate the starting of the diesel engine, the low-temperature starting diesel engine further comprises an electric heater, the electric heater is installed in the heat insulation box 4, and the electric heater is electrically connected with the storage battery. Due to the arrangement, the electric heater can heat the engine oil in the heat insulation box 4, the temperature of the engine oil is increased, and the viscosity of the engine oil is reduced so as to reduce the resistance of a crankshaft in the starting process.
In order to facilitate the control of the temperature of the engine oil, a temperature sensor is arranged in the oil inlet pipe 5 and is electrically connected with the controller. When the temperature sensor detects that the temperature of the engine oil in the oil inlet pipe 5 rises to a certain value, the controller can control the oil pump 2 or the electric heater to stop working.
The low-temperature starting diesel engine also comprises a motor 3, a rotating shaft of the motor 3 is connected with the oil pump 2 to drive the oil pump 2 to rotate, and the motor 3 is electrically connected with the storage battery. By the arrangement, the motor 3 drives the oil pump 2 to operate before the starting process of the diesel engine, the oil circulates between the shell 1 and the heat preservation box 4 through the oil inlet pipe 5 and the oil outlet pipe 6, and the shell 1 is heated by the oil in the circulating process, so that the air in the cylinder is prevented from losing more heat in the compression stroke, and the starting of the diesel engine is facilitated.
In order to make the temperature of the engine oil more uniform, the oil inlet and the oil outlet are respectively arranged at the lower part and the upper part of the heat preservation box 4. The arrangement ensures that the engine oil entering the heat insulation box 4 from the oil inlet hole stirs the engine oil in the heat insulation box 4, so that the temperature of the engine oil in the heat insulation box 4 is more uniform.
And simultaneously, the utility model provides a generating set, generating set include generator 10 with the low temperature start diesel engine, generator 10 includes the rotor, the low temperature start diesel engine pass through drive mechanism with the rotor is connected in order to drive generator 10 rotates.
When using the low temperature start diesel engine, when the diesel engine stops operating, the controller controls the first electromagnetic valve 7 and the second electromagnetic valve 8 to open, the third electromagnetic valve 9 to close, the motor 3 drives the oil pump 2 to operate, the oil pump 2 conveys the heat engine oil in the casing 1 to the heat preservation box 4 through the oil inlet pipe 5, then, the controller controls the first electromagnetic valve 7 and the second electromagnetic valve 8 to close, when the diesel engine is started next time, the controller controls the first electromagnetic valve 7 and the second electromagnetic valve 8 to open, the third electromagnetic valve 9 to close, the motor 3 drives the oil pump 2 to operate, the oil pump 2 conveys the oil in the heat preservation box 4 to the casing 1, and simultaneously, the electric heater works to heat the oil until the oil reaches a certain temperature, the controller controls the electric heater to stop working, and the controller controls the first electromagnetic valve 7 and the second electromagnetic valve 8 to close, The third solenoid valve 9 is opened.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A cold-start diesel engine, comprising: a shell (1), an oil pump (2), a heat preservation box (4), an oil inlet pipe (5), an oil outlet pipe (6), a first electromagnetic valve (7), a second electromagnetic valve (8), a third electromagnetic valve (9), a storage battery and a controller,
the oil pump (2) is respectively communicated with the shell (1) through an oil inlet pipe (5) and an oil outlet pipe (6),
an oil inlet hole and an oil outlet hole are formed in the box body of the heat preservation box (4), the oil inlet hole and the oil outlet hole are respectively communicated with the oil outlet pipe (6) through the first electromagnetic valve (7) and the second electromagnetic valve (8),
the third electromagnetic valve (9) is connected with the heat preservation box (4) in parallel and is arranged on the oil outlet pipe (6),
the first electromagnetic valve (7), the second electromagnetic valve (8) and the third electromagnetic valve (9) are simultaneously electrically connected with the controller and the storage battery.
2. The low-temperature starting diesel engine as set forth in claim 1, wherein the outer periphery of the case body of the heat-insulating case (4) is wrapped with a heat-insulating material.
3. The cold-start diesel engine of claim 1, wherein the outer peripheries of the oil inlet pipe (5) and the oil outlet pipe (6) are wrapped with thermal insulation materials.
4. The cold start diesel engine of claim 1, further comprising an electric heater installed in the heat insulation box (4), wherein the electric heater is electrically connected with the storage battery.
5. The cold-start diesel engine of claim 1, wherein a temperature sensor is mounted in the oil inlet pipe (5), and the temperature sensor is electrically connected with the controller.
6. The low-temperature starting diesel engine according to claim 1, further comprising a motor (3), wherein a rotating shaft of the motor (3) is connected with the oil pump (2) to drive the oil pump (2) to rotate, and the motor (3) is electrically connected with the storage battery.
7. The cold start diesel engine of claim 1, wherein said oil inlet and said oil outlet are provided at the lower and upper portions of said insulation can (4), respectively.
8. An electric power generating unit, characterized in that the electric power generating unit comprises an electric power generator (10) and a cold start diesel engine according to any one of claims 1 to 7, the electric power generator (10) comprising a rotor, and the cold start diesel engine is connected to the rotor through a transmission mechanism to drive the electric power generator (10) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921038713.1U CN210087525U (en) | 2019-07-04 | 2019-07-04 | Low-temperature starting diesel engine and generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921038713.1U CN210087525U (en) | 2019-07-04 | 2019-07-04 | Low-temperature starting diesel engine and generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087525U true CN210087525U (en) | 2020-02-18 |
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ID=69484646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921038713.1U Active CN210087525U (en) | 2019-07-04 | 2019-07-04 | Low-temperature starting diesel engine and generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087525U (en) |
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2019
- 2019-07-04 CN CN201921038713.1U patent/CN210087525U/en active Active
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