CN217926060U - Temperature control system of diesel engine under extreme conditions - Google Patents
Temperature control system of diesel engine under extreme conditions Download PDFInfo
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- CN217926060U CN217926060U CN202221364840.2U CN202221364840U CN217926060U CN 217926060 U CN217926060 U CN 217926060U CN 202221364840 U CN202221364840 U CN 202221364840U CN 217926060 U CN217926060 U CN 217926060U
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model discloses a diesel engine temperature control system under extreme conditions, which comprises a high-temperature water large circulation pipeline, wherein under the driving of a high-temperature water pump, water flows to the high-temperature water pump after sequentially flowing through the high-temperature water pump, an engine oil cooler, a water channel in a machine body, a high-temperature water three-way thermostat and a high-temperature water radiating unit to form a circulation pipeline; the water inlet and the first water outlet of the high-temperature water three-way thermostat are communicated on the high-temperature water large circulation pipeline, and the second water outlet of the high-temperature water three-way thermostat is communicated with the fuel oil heating device of the high-temperature water small circulation pipeline; the high-temperature water small circulation pipeline; the high-temperature water three-way thermostat is used for controlling cooling water flowing out of the water channel in the machine body to enter the high-temperature water large circulation pipeline or the high-temperature water small circulation pipeline according to the water temperature; the utility model discloses can be under two kinds of operating mode environment of low temperature and high temperature, maintain the inside temperature stability of diesel engine to make each spare part of diesel engine move under the ideal condition.
Description
Technical Field
The utility model belongs to the technical field of the diesel engine, concretely relates to diesel engine temperature control system under extreme condition.
Background
The diesel engine is a power component of the generator set, and the cooling system is an important component of the diesel engine. The well designed cooling system can ensure that all parts of the diesel engine can operate under ideal conditions, and the parts cannot be in an overheat or supercooled state under all operating states, so that the service life of the engine is prolonged, and the maintenance cost is reduced. Under extreme conditions, the temperature of the working environment of the diesel engine changes dramatically, namely, the low temperature is low, the high temperature is high, and the temperature changes rapidly, in the traditional closed self-circulating water cooling diesel engine, under the extreme environmental conditions, parts can be overheated and quickly change to the extremely high temperature from the extremely low temperature, so that the operation of each part of the diesel engine under ideal conditions cannot be guaranteed, the service life of the engine is shortened, and the maintenance cost is increased.
Disclosure of Invention
In order to overcome not enough in the background art, the utility model provides a diesel engine temperature control system under extreme condition, aim at, under the two kinds of operating mode environment of reply low temperature and high temperature, maintains the internal temperature stability of diesel engine to make each spare part of diesel engine move under ideal condition.
In order to achieve the above object, the utility model provides a following technical scheme: a temperature control system of a diesel engine under extreme conditions comprises a high-temperature water large circulation pipeline, wherein the high-temperature water large circulation pipeline is used for enabling water flow to sequentially flow through a high-temperature water pump, an engine oil cooler, a machine body inner water channel, a high-temperature water three-way thermostat and a high-temperature water heat dissipation unit and then flow to the high-temperature water pump to form a circulation pipeline; so that the high-temperature water heat dissipation unit circularly cools the cooling water flowing through the water channel in the machine body;
the water inlet and the first water outlet of the high-temperature water three-way thermostat are communicated on the high-temperature water large circulation pipeline, and the second water outlet of the high-temperature water three-way thermostat is communicated with a fuel oil heating device of the high-temperature water small circulation pipeline; the high-temperature water small circulation pipeline is used for connecting water flow to a water inlet of the engine oil cooler after the water flow passes through the fuel oil heating device for heating; so that the fuel oil heating device circularly heats the cooling water flowing through the water channel in the machine body;
the high-temperature water three-way thermostat is used for controlling cooling water flowing out of the water channel in the machine body to enter the high-temperature water large circulation pipeline or the high-temperature water small circulation pipeline according to the water temperature;
the high-temperature water pump is provided with a driving device, and the starting, the stopping and the rotating speed of the high-temperature water pump can be independently controlled;
the high-temperature water heat dissipation unit is installed in the electrically-driven heat dissipation box, and the heat dissipation fan of the electrically-driven heat dissipation box is provided with a driving device, so that the starting and stopping and the rotating speed of the heat dissipation fan can be independently controlled.
As further optimization, an oil pan heating device is also connected in parallel on the high-temperature water small circulation pipeline; the parallel connection is that the water inlet of the oil pan heating device is communicated with the water outlet of the fuel oil heating device, and the water outlet of the oil pan heating device is communicated with the water outlet of the water channel in the engine body.
As further optimization, the system also comprises a low-temperature water large circulation pipeline, wherein the low-temperature water large circulation pipeline is used for enabling water flow to the low-temperature water pump to form a circulation pipeline after sequentially flowing through the low-temperature water pump, the air cooler, the low-temperature water three-way thermostat and the low-temperature water radiating unit under the driving of the low-temperature water pump; so that the low-temperature water heat dissipation unit circularly cools the cooling water flowing through the air cooler; the water inlet and the first water outlet of the low-temperature water three-way thermostat are communicated with the low-temperature water large circulation pipeline; the second water outlet of the low-temperature water pump is communicated with the water inlet of the low-temperature water pump and is used for forming a low-temperature water small circulation pipeline through which water flows circularly through the low-temperature water pump and the air cooler; the low-temperature water three-way thermostat is used for controlling cooling water flowing out of the air cooler to enter the low-temperature water large circulation pipeline or the low-temperature water small circulation pipeline according to the water temperature; the low-temperature water heat dissipation unit is installed in the electric drive heat dissipation box.
As a further optimization, in the electrically-driven radiator, the radiator fan, the low-temperature water radiating unit and the high-temperature water radiating unit are sequentially arranged from bottom to top, and air flow generated by the radiator fan sequentially blows through the low-temperature water radiating unit and the high-temperature water radiating unit.
As a further optimization, the fuel oil heating device comprises a plurality of fuel oil boiler heaters which are connected in parallel through pipelines; each oil-fired boiler heater can be independently controlled to start and stop and control the heating quantity; and the water inlet and the water outlet of each oil-fired boiler heater are respectively connected with a one-way valve for preventing water flow from circulating among the plurality of oil-fired boiler heaters.
As further optimization, a high-temperature water expansion water tank and a low-temperature water expansion water tank are connected to the high-temperature water large circulation pipeline and the low-temperature water large circulation pipeline; and the high-temperature water expansion water tank and the low-temperature water expansion water tank are both arranged at the highest position in the electrically-driven heat dissipation box.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The system can be used for cooling the diesel engine and heating the diesel engine, and meets the requirement of the extreme environment of the diesel engine working at extremely low or high temperature, so that the diesel engine can normally work at an ideal temperature, the service life of the engine is prolonged, and the maintenance cost is reduced.
(2) The system utilizes the high-temperature water three-way thermostat and the low-temperature water three-way thermostat to automatically control the water circulation route, does not need manual intervention, and has high automation degree.
(3) The heating and heat dissipating device of the system, namely the fuel oil heating device and the electric-drive heat dissipating box, work independently, so that the heating or heat dissipating amount can be controlled conveniently, and the energy consumption of the heating and heat dissipating device can be reduced.
In a word, the utility model discloses can be under two kinds of operating mode environment of low temperature and high temperature, maintain the inside temperature stability of diesel engine to make each spare part of diesel engine move under the ideal condition.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
In the figure: 1. an electrically driven heat dissipation case; 2. a stop valve; 3. a low-temperature water three-way thermostat; 4. a low-temperature water pump; 5. an air cooler; 6. a low-temperature water gas release port; 7. a high-temperature water pump; 8. a high temperature water single phase valve; 9. an oil cooler; 10. a water channel in the machine body; 11. an oil pan heating device; 12. a fuel boiler heater; 13. a one-way valve; 14. a high-temperature water gas release port; 15. a high-temperature water three-way thermostat; 16. a diesel engine.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are only some of the preferred embodiments of the present invention, not all of them. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example 1: please refer to fig. 1;
the embodiment provides the following technical scheme: a diesel engine temperature control system under extreme conditions comprises a high-temperature water large circulation pipeline, wherein the high-temperature water large circulation pipeline is used for enabling water flow to sequentially flow through a high-temperature water pump 7, an engine oil cooler 9, a body internal water channel 10, a high-temperature water three-way thermostat 15 and a high-temperature water radiating unit and then flow to the high-temperature water pump 7 to form a circulation pipeline under the driving of the high-temperature water pump 7; so that the high temperature water heat radiating unit circularly cools the cooling water flowing through the body water passage 10;
wherein, the water inlet and the first water outlet of the high-temperature water three-way thermostat 15 are communicated on the high-temperature water large circulation pipeline, and the second water outlet is communicated with the fuel oil heating device of the high-temperature water small circulation pipeline; the high-temperature water small circulation pipeline is used for connecting water to a water inlet of the engine oil cooler 9 after water flows through the fuel oil heating device for heating; so that the fuel heating apparatus circularly heats the cooling water flowing through the body water passage 10; wherein, the oil cooler 9 is a water-cooled oil cooler.
The system comprises two working modes, namely, when a high-temperature water large circulation pipeline is started, the temperature of the diesel engine is reduced; and when the high-temperature water small circulation pipeline is started, the diesel engine is heated.
The high-temperature water three-way thermostat 15 is used for controlling cooling water flowing out of the body inner water channel 10 to enter the high-temperature water large circulation pipeline or the high-temperature water small circulation pipeline according to water temperature; therefore, the temperature increase or decrease is controlled by the high-temperature water three-way thermostat 15.
In order to heat or cool the diesel engine when the diesel engine is not started or just started, the high-temperature water pump 7 is provided with a driving device and is not connected with the crankshaft torque of the diesel engine, and the starting, the stopping and the rotating speed of the high-temperature water pump 7 can be independently controlled;
the high-temperature water heat dissipation unit is independent of the diesel engine and is installed in the electrically-driven heat dissipation box 1, and the heat dissipation fan of the electrically-driven heat dissipation box 1 is provided with a driving device and is not connected with the crankshaft torque of the diesel engine, so that the starting, the stopping and the rotating speed of the heat dissipation fan can be independently controlled. So as to adjust the air quantity of the heat radiation fan according to the temperature.
In order to accelerate warming-up during low-temperature starting, the engine oil in the oil pan of the diesel engine is warmed, and an oil pan heating device 11 is connected in parallel on the high-temperature water small circulation pipeline; the parallel connection is that the water inlet of the oil pan heating device 11 is communicated with the water outlet of the fuel oil heating device, and the water outlet of the oil pan heating device 11 is communicated with the water outlet of the water channel 10 in the machine body. Therefore, the hot water flowing out of the fuel oil heating device is divided into two paths, one path is supplied to the engine oil cooler 9 and the water channel 10 in the engine body to heat the engine body; the other path is supplied to an oil pan heating device 11 to help the oil pan to heat; thereby ensuring the diesel engine to work in a low-temperature environment.
When the diesel oil is cooled, the temperature of the pressurization system is high, and the cooling requirement is met. Therefore, the system also comprises a low-temperature water large circulation pipeline which is used for leading water flow to the low-temperature water pump 4 to form a circulation pipeline after sequentially flowing through the low-temperature water pump 4, the air cooler 5, the low-temperature water three-way thermostat 3 and the low-temperature water radiating unit under the driving of the low-temperature water pump 4; so that the low-temperature water heat radiating unit circularly cools the cooling water flowing through the air cooler 5; of course, the high temperature is generated after the diesel engine is started, so the low temperature water pump 4 can take power from the crankshaft of the diesel engine and can also be driven by an independent motor. Wherein, the air cooler 5 is a water-cooled air cooler.
However, under low temperature conditions, excessive cooling of the supercharger and the air cooler 5 is not required, for example, under low temperature starting conditions, and therefore, short circuit control is designed for the low temperature water large circulation pipeline, and a low temperature water small circulation pipeline is formed. Specifically, a water inlet and a first water outlet of the low-temperature water three-way thermostat 3 are communicated with the low-temperature water large circulation pipeline; the second water outlet of the low-temperature water circulating device is communicated with the water inlet of the low-temperature water pump 4 and is used for forming a low-temperature water small circulating pipeline through which water flows circularly through the low-temperature water pump 4 and the air cooler 5; the low-temperature water three-way thermostat 3 is used for controlling cooling water flowing out of the air cooler 5 to enter the low-temperature water large circulation pipeline or the low-temperature water small circulation pipeline according to the water temperature; the low temperature water heat dissipation unit is installed in the electric drive heat dissipation case 1.
So far, this system includes two sets of temperature control system, dispels the heat by low temperature water heat dissipation unit and high temperature water heat dissipation unit respectively, and two sets of system autonomous workings for this system is more nimble to the temperature control of diesel engine, and is more accurate.
In the electrically-driven heat dissipation box 1, the heat dissipation fan, the low-temperature water heat dissipation unit and the high-temperature water heat dissipation unit are sequentially arranged from bottom to top, and air flow generated by the heat dissipation fan is used for sequentially blowing through the low-temperature water heat dissipation unit and the high-temperature water heat dissipation unit. The high-temperature component is arranged above the low-temperature component, so that natural convection of air is facilitated, and heat dissipation is facilitated.
In order to flexibly control the heating quantity of the oil heating device, the oil heating device comprises a plurality of oil boiler heaters 12 which are connected in parallel through pipelines; each oil-fired boiler heater 12 can be independently controlled to start and stop and control the heating capacity; a check valve 13 is connected to a water inlet and a water outlet of each oil boiler heater 12 to prevent water from circulating among the plurality of oil boiler heaters 12. Therefore, several oil-fired boiler heaters 12 can be selectively started to work according to requirements, and the heating quantity can be flexibly controlled.
Certainly, gas exists in the circulating pipeline, and liquid expands at high temperature, so that a high-temperature water expansion water tank and a low-temperature water expansion water tank are connected to the high-temperature water large circulating pipeline and the low-temperature water large circulating pipeline; the high-temperature water expansion water tank and the low-temperature water expansion water tank are both arranged at the highest position in the electrically-driven heat dissipation box 1. To avoid overflow of cooling water from the expansion tank. Furthermore, the arrangement of the expansion tank in the electric radiator tank 1 also has the effect of assisting the heat dissipation.
When the engine oil cooler is used, before the engine oil cooler is started at extremely low temperature, only the high-temperature water small circulation pipeline starts to work due to the control of the high-temperature water three-way thermostat 15, the fuel oil heating device heats the cooling water in the pipeline and supplies the cooling water to the engine oil cooler 9, the machine body water channel 10 and the oil pan heating device 11, and the engine oil cooler is quickly warmed up. When the temperature rises, the ignition and the starting of the diesel engine are convenient; after the diesel engine enters an idling state, the fuel oil heating device stops working, and the high-temperature water small circulation pipeline is closed; the diesel engine itself generates heat; after the diesel engine enters a normal working state, the low-temperature water small circulation pipeline starts to work, the temperature continues to rise, and when heat dissipation is needed, the high-temperature water three-way thermostat 15 starts the high-temperature water large circulation pipeline, and the low-temperature water three-way thermostat 3 starts the low-temperature water large circulation pipeline; the temperature of the diesel engine is continuously reduced, so that the diesel engine can normally work in a high-temperature environment.
The advantage of this embodiment is that, compared to the prior art,
(1) The system can be used for cooling the diesel engine and heating the diesel engine, and meets the requirement of the extreme environment of the diesel engine working at extremely low or high temperature, so that the diesel engine can normally work at an ideal temperature, the service life of the engine is prolonged, and the maintenance cost is reduced.
(2) The system utilizes the high-temperature water three-way thermostat 15 and the low-temperature water three-way thermostat 3 to automatically control the water circulation route, does not need manual intervention, and has high automation degree.
(3) The heating and heat dissipating device of the system, namely the fuel oil heating device and the electric-drive heat dissipating box, work independently, so that the heating or heat dissipating amount can be controlled conveniently, and the energy consumption of the heating and heat dissipating device can be reduced.
In a word, this embodiment can be under two kinds of operating mode environment of low temperature and high temperature, and the internal temperature of maintenance diesel engine is stable to make each spare part of diesel engine move under ideal condition.
The part of the utility model which is not detailed is the prior art; for a person skilled in the art, various technical features of the embodiments described above may be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, however, as long as there is no contradiction between the combinations of the technical features, the combinations should be considered as the scope of the present description. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a diesel engine temperature control system under extreme condition which characterized in that: the high-temperature water circulation system comprises a high-temperature water large circulation pipeline, wherein water flows to the high-temperature water pump (7) after sequentially flowing through the high-temperature water pump (7), an engine oil cooler (9), a machine body inner water channel (10), a high-temperature water three-way thermostat (15) and a high-temperature water heat dissipation unit under the driving of the high-temperature water pump (7) to form a circulation pipeline, so that the high-temperature water heat dissipation unit circularly cools cooling water flowing through the machine body inner water channel (10);
the water inlet and the first water outlet of the high-temperature water three-way thermostat (15) are communicated on the high-temperature water large circulation pipeline, and the second water outlet of the high-temperature water three-way thermostat is communicated with a fuel oil heating device of the high-temperature water small circulation pipeline; the high-temperature water small circulation pipeline is used for connecting a water inlet of the engine oil cooler (9) after water flows through the fuel oil heating device for heating; so that the fuel oil heating device circularly heats the cooling water flowing through the water channel (10) in the machine body;
the high-temperature water three-way thermostat (15) is used for controlling cooling water flowing out of the water channel (10) in the machine body to enter the high-temperature water large circulation pipeline or the high-temperature water small circulation pipeline according to the water temperature;
the high-temperature water pump (7) is provided with a driving device, and the starting, the stopping and the rotating speed of the high-temperature water pump (7) can be independently controlled;
the high-temperature water heat dissipation unit is installed in an electrically-driven heat dissipation box (1), and a heat dissipation fan of the electrically-driven heat dissipation box (1) is provided with a driving device and used for independently controlling the starting and stopping and the rotating speed of the heat dissipation fan.
2. The extreme condition diesel engine temperature control system of claim 1, wherein: an oil pan heating device (11) is also connected in parallel on the high-temperature water small circulation pipeline; the parallel connection is that the water inlet of the oil pan heating device (11) is communicated with the water outlet of the fuel oil heating device, and the water outlet of the oil pan heating device (11) is communicated with the water outlet of the water channel (10) in the engine body.
3. The extreme condition diesel engine temperature control system of claim 2, wherein: the water flow sequentially flows through the low-temperature water pump (4), the air cooler (5), the low-temperature water three-way thermostat (3) and the low-temperature water heat dissipation unit under the driving of the low-temperature water pump (4) and then flows to the low-temperature water pump (4) to form a circulation pipeline, so that the low-temperature water heat dissipation unit circularly cools cooling water flowing through the air cooler (5);
the water inlet and the first water outlet of the low-temperature water three-way thermostat (3) are communicated with the low-temperature water large circulation pipeline; the second water outlet of the low-temperature water circulating device is communicated with the water inlet of the low-temperature water pump (4) and is used for forming a low-temperature water small circulating pipeline through which water flows circularly and flows through the low-temperature water pump (4) and the air cooler (5);
the low-temperature water three-way thermostat (3) is used for controlling cooling water flowing out of the air cooler (5) to enter the low-temperature water large circulation pipeline or the low-temperature water small circulation pipeline according to the water temperature;
the low-temperature water heat dissipation unit is installed in the electric heat dissipation box (1).
4. The extreme condition diesel engine temperature control system of claim 3, wherein: in the electrically-driven heat dissipation box (1), the heat dissipation fan, the low-temperature water heat dissipation unit and the high-temperature water heat dissipation unit are sequentially arranged from bottom to top, and air flow generated by the heat dissipation fan sequentially blows through the low-temperature water heat dissipation unit and the high-temperature water heat dissipation unit.
5. The extreme condition diesel engine temperature control system of claim 4, wherein: the oil heating device comprises a plurality of oil boiler heaters (12) which are connected in parallel through pipelines; each oil-fired boiler heater (12) can be independently controlled to start and stop and control the heating quantity;
and the water inlet and the water outlet of each oil boiler heater (12) are connected with one-way valves (13) for preventing water flow from circulating among the oil boiler heaters (12).
6. The extreme condition diesel engine temperature control system of claim 5, wherein: the high-temperature water large circulation pipeline and the low-temperature water large circulation pipeline are also connected with a high-temperature water expansion water tank and a low-temperature water expansion water tank; the high-temperature water expansion water tank and the low-temperature water expansion water tank are both arranged at the highest position in the electrically-driven heat dissipation box (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221364840.2U CN217926060U (en) | 2022-06-02 | 2022-06-02 | Temperature control system of diesel engine under extreme conditions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221364840.2U CN217926060U (en) | 2022-06-02 | 2022-06-02 | Temperature control system of diesel engine under extreme conditions |
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| CN217926060U true CN217926060U (en) | 2022-11-29 |
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| CN202221364840.2U Active CN217926060U (en) | 2022-06-02 | 2022-06-02 | Temperature control system of diesel engine under extreme conditions |
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2022
- 2022-06-02 CN CN202221364840.2U patent/CN217926060U/en active Active
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