CN202176398U - Marine engine and cooling system thereof - Google Patents
Marine engine and cooling system thereof Download PDFInfo
- Publication number
- CN202176398U CN202176398U CN 201120267131 CN201120267131U CN202176398U CN 202176398 U CN202176398 U CN 202176398U CN 201120267131 CN201120267131 CN 201120267131 CN 201120267131 U CN201120267131 U CN 201120267131U CN 202176398 U CN202176398 U CN 202176398U
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- intercooler
- heat exchanger
- engine
- inlet
- cooling water
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Abstract
The utility model discloses a cooling system of a marine engine, which comprises a water pump, an engine heat exchanger and an intercooler heat exchanger, wherein the outlet of the water pump is communicated with the cooling water inlet of the engine; the cooling water inlet of the engine heat exchanger is communicated with the cooling water inlet of the engine, and the cooling water outlet is communicated with the inlet of the water pump; the cooling water inlet of the intercooler heat exchanger is communicated with the outlet of the water pump, and the cooling water outlet is communicated with the cooling water inlet of an intercooler; and the cooling water outlet of the intercooler is communicated with the inlet of the water pump. The cooling system conducts secondary cooling by adding one intercooler heat exchanger, the air inlet temperature can be reduced to about 70 DEG C, therefore NOx emission is reduced by a large margin, and the emission standard requirement of IMO Tier 2 can be met. The utility model also discloses a marine engine with the cooling system of the marine engine.
Description
Technical field
The utility model relates to the marine engine technical field, particularly a kind of marine engine and cooling system thereof.
Background technique
Engine of boat and ship in the course of the work, its temperature is higher, influences the output power of motor and damages the parts of motor easily and cause that temperature is too high in the cabin; For reducing the operating temperature of motor; On the motor of existing ship water cooling system is installed; The working principle of this water cooling system is to utilize the engine drives water pump with realizing the circulation cooling in the cooling water suction motor in the water tank, and is in the circulation cooling procedure, too high for preventing the cooling water temperature in the water tank; Reduce cooling effect; Putting on the shelf at the water cooling pipeline is provided with radiator, and the cooling water of motor being discharged through radiator cools off to get in the motor through water pump again and circulates, thereby guarantees the cooling effect of motor.
The first two years has been issued the marine engine emission standard, require 2011 after, the boats and ships that are used for running in freewater must satisfy IMO (International Maritime Organization, IMO International Maritime Organization) Tier 2 emission standard requirements.Satisfy this emission standard requirement; Marine engine need adopt refrigeration technique in the low temperature; Promptly the cooling water temperature through the reduction intercooler comes cold back intake temperature in the further reduction, and this just need mate a cool cycles to intercooler, promptly with heat exchanger difference cooled engine and intercooler.
Present marine engine cooling system comprises water pump 1, heat exchanger 5 and thermostat 4; Motor 2 drives water pump 1 with cooling water suction motor in the water tank 2 and intercooler 3 interior realization circulation coolings; The heated cooling water that is flowed out by motor 2 and intercooler 3 flows into thermostat 4, and can distinguish inflow heat exchanger 5 and water pump 1 through the switching of thermostat 4, promptly when the temperature of cooling water is hanged down; Can directly get into water pump 1 and circulate without heat exchanger 5.
Present heat exchanger adopts unit-type heat exchanger, and this unit-type heat exchanger inside is divided into 2 parts, and a part is come the cooled engine cooling water with seawater, and another part cools off the intercooler cooling water with seawater.This unit-type heat exchanger need adopt the plate-fin structure of nickel platinoid material, and needs new design and mould manufacturing, and manufacture cost is very high, is equivalent to 1/3rd of motor cost.If intercooler and the shared heat exchanger of motor are cooled off, i.e. once cooling can be reduced to intake temperature after the supercharging of entering intercooler about 95 ℃ from about 150 ℃, and cooling effect is bad, can't reach IMO Tier 2 emission standard requirements.
How to guarantee under the lower prerequisite of manufacture cost that intake temperature after the supercharging of reduction entering intercooler makes it satisfy IMO Tier 2 emission standard requirements, becomes the technical problem that those skilled in the art need to be resolved hurrily.
The model utility content
In view of this, the utility model provides a kind of marine engine and cooling system thereof, to guarantee under the lower prerequisite of manufacture cost that intake temperature after the supercharging of reduction entering intercooler makes it satisfy IMOTier 2 emission standard requirements.
For realizing above-mentioned purpose, the utility model provides following technological scheme:
A kind of marine engine cooling system comprises:
Water pump, its outlet is connected with the cooling water inlet of motor through pipeline;
Heat exchanger of engine, its cooling water inlet is connected with the coolant outlet of said motor, and its coolant outlet is connected with the inlet of said water pump;
The intercooler heat exchanger, its cooling water inlet is connected with the outlet of said water pump, and its coolant outlet is connected with the cooling water inlet of intercooler, and the coolant outlet of said intercooler is connected with the inlet of said water pump.
Preferably, in above-mentioned marine engine cooling system, said heat exchanger of engine and said intercooler heat exchanger all have the cooled with seawater passage.
Preferably; In above-mentioned marine engine cooling system; Also comprise the motor thermostat that is communicated between said motor and the said heat exchanger of engine; The inlet of said motor thermostat is connected with the coolant outlet of said motor, and two outlets of said motor thermostat are connected with the cooling water inlet of said heat exchanger of engine and the inlet of said water pump respectively.
Preferably; In above-mentioned marine engine cooling system; Also comprise the intercooler thermostat that is communicated between said water pump and the said intercooler heat exchanger; The inlet of said intercooler thermostat is connected with said exit of pump, and two outlets of said intercooler thermostat are connected with the cooling water inlet of said intercooler heat exchanger and the cooling water inlet of said intercooler respectively.
Preferably, in above-mentioned marine engine cooling system, the inlet of said intercooler thermostat is through on the pipeline between pipeline connection to said water pump and the said motor.
A kind of marine engine comprises cooling system, and said cooling system is as above each described marine engine cooling system.
Can find out that from above-mentioned technological scheme the marine engine cooling system that the utility model provides comprises: water pump, its outlet is connected with the cooling water inlet of motor through pipeline; Heat exchanger of engine, its cooling water inlet is connected with the coolant outlet of said motor, and its coolant outlet is connected with the inlet of said water pump; The intercooler heat exchanger, its cooling water inlet is connected with the outlet of said water pump, and its coolant outlet is connected with the cooling water inlet of intercooler, and the coolant outlet of said intercooler is connected with the inlet of said water pump.
Based on above-mentioned setting, the marine engine cooling system that the utility model provides is on the basis of original heat exchanger of engine; Only increase an intercooler heat exchanger; Cool off the intercooler cooling water with seawater,, reach and reduce NO so that further reduce Engine Inlet Temperature
xThe purpose of effulent.The utility model changes through small construction, and still can adopting cheaply, pipe sheet type structure reaches purpose of design to reduce whole cost.Former marine engine; Cool off the intercooler water inlet through a heat exchanger, i.e. once cooling can be reduced to intake temperature after the supercharging that gets into intercooler about 95 ℃ from about 150 ℃; The utility model is through increasing an intercooler heat exchanger; Promptly carry out the secondary cooling, can be reduced to intake temperature about 70 ℃, thereby reduce NO by a relatively large margin
xDischarging makes it satisfy IMO Tier 2 emission standard requirements.
If adopt existing whole plate fin type heat exchanger (integrating heat exchanger of engine and intercooler heat exchanger), cost increases about 35,000 yuan.And be employed on the former pipe type heat exchanger of engine basis, increasing a pipe type intercooler heat exchanger, the motor cost only increases about about 3,000 yuan, and the utility model effectively reduces the motor cost.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing ship with engine-cooling system;
The structural representation of the marine engine cooling system that Fig. 2 provides for the utility model embodiment.
Embodiment
The utility model discloses a kind of marine engine and cooling system thereof, to guarantee under the lower prerequisite of manufacture cost that intake temperature after the supercharging of reduction entering intercooler makes it satisfy IMO Tier 2 emission standard requirements.
To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 2, the structural representation of the marine engine cooling system that Fig. 2 provides for the utility model embodiment.
The marine engine cooling system that the utility model provides comprises water pump 11, heat exchanger of engine 16 and intercooler heat exchanger 17.Wherein, water pump 11 is used to cooling water circulation power is provided, and heat exchanger of engine 16 is used to cool off the cooling water that is flowed out by motor 13, and intercooler heat exchanger 17 is used to cool off the cooling water that is flowed out by intercooler 12.
The outlet of water pump 11 is connected through the cooling water inlet of pipeline with motor 13, can cooling water be pumped in the motor 13, to take away the heat in the motor 13, motor 13 is cooled off.The cooling water inlet of heat exchanger of engine 16 is connected with the coolant outlet of motor 13, and its coolant outlet is connected with the inlet of water pump 11.Be pumped into the coolant outlet outflow that motor 13 interior cooling waters pass through motor 13; And in the cooling water inlet entering heat exchanger of engine 16 through heat exchanger of engine 16, the cooling water that carries the motor heat carries out heat exchange in heat exchanger of engine 16.
The cooling water inlet of intercooler heat exchanger 17 is connected with the outlet of water pump 11, and its coolant outlet is connected with the cooling water inlet of intercooler 12, and the coolant outlet of intercooler 12 is connected with the inlet of water pump 11.Intercooler heat exchanger 17 will be cooled off by the cooling water that its cooling water inlet is pumped in the intercooler heat exchanger 17, and cooled cooling water is cooled off by 12 pairs of intercoolers 12 of coolant outlet inflow intercooler of intercooler heat exchanger 17.
The marine engine cooling system that the utility model provides; On the basis of original heat exchanger of engine, only increase an intercooler heat exchanger 17, cool off the cooling water that flows in the intercooler 12 with seawater; So that further reduce Engine Inlet Temperature, reach and reduce NO
xThe purpose of effulent.The utility model changes through small construction, and still can adopting cheaply, pipe sheet type structure reaches purpose of design to reduce whole cost.Former marine engine; Cool off the intercooler water inlet through a heat exchanger, i.e. once cooling can be reduced to intake temperature after the supercharging that gets into intercooler 12 about 95 ℃ from about 150 ℃; The utility model is through increasing an intercooler heat exchanger 17; Promptly carry out the secondary cooling, can be reduced to intake temperature about 70 ℃, thereby reduce NO by a relatively large margin
xDischarging makes it satisfy the requirement of IMO Tier2 emission standard.
If adopt existing whole plate fin type heat exchanger (integrating heat exchanger of engine and intercooler heat exchanger), cost increases about 35,000 yuan.And be employed on the former pipe type heat exchanger of engine basis, increasing a pipe type intercooler heat exchanger, the motor cost only increases about about 3,000 yuan, and the utility model effectively reduces the motor cost.
Heat exchanger of engine 16 all has the cooled with seawater passage with intercooler heat exchanger 17; Heat exchanger of engine 16 carries out heat exchange with intercooler heat exchanger 17 through the seawater that is got into by its cooled with seawater passage; With the heat transferred seawater, to keep the low-temperature condition of its inner cooling water.
In order accurately to regulate the heat dissipation potential of cooling system; The utility model also can comprise the motor thermostat 15 that is communicated between motor 13 and the heat exchanger of engine 16; The inlet of motor thermostat 15 is connected with the coolant outlet of motor 13, and two outlets of motor thermostat 15 are connected with the cooling water inlet of heat exchanger of engine 16 and the inlet of water pump 11 respectively.Motor thermostat 15 can be regulated the water yield that gets into heat exchanger of engine 16 automatically according to the height of cooling water temperature, changes the range of DO of water, and to regulate the heat dissipation potential of cooling system, the assurance motor is worked in suitable temperature range.Promptly when the temperature of cooling water is low, can be with its and the port closing that heat exchanger of engine 16 is connected, let the cooling water that passes through it directly get into water pump 11 and circulate.When the temperature of cooling water is higher, can be with itself and the port closing that water pump 11 is connected, let at first get into heat exchanger of engine 16 through its cooling water and cool off, get into water pump 11 again and circulate.
In order further accurately to regulate the heat dissipation potential of cooling system; The utility model also can comprise the intercooler thermostat 14 that is communicated between water pump 11 and the intercooler heat exchanger 17; The inlet of intercooler thermostat 14 is connected with water pump 11 outlets, and two outlets of intercooler thermostat 14 are connected with the cooling water inlet of intercooler heat exchanger 17 and the cooling water inlet of intercooler 12 respectively.Intercooler thermostat 14 can be regulated the water yield that gets into intercooler heat exchanger 17 automatically according to the height of cooling water temperature, changes the range of DO of water, and to regulate the heat dissipation potential of cooling system, the assurance motor is worked in suitable temperature range.Promptly when the temperature of cooling water is low, can be with its and the port closing that intercooler heat exchanger 17 is connected, let the cooling water that passes through it directly get into intercooler 12 and cool off.When the temperature of cooling water is higher, can be with itself and the port closing that intercooler 12 is connected, let at first get into intercooler heat exchanger 17 through its cooling water and cool off, get into intercooler 12 again and circulate with water pump 11.
The inlet of intercooler thermostat 14 can to reduce the layout of pipeline, reduce the pipeline occupation space through on the pipeline between pipeline connection to water pump 11 and the motor 13.
The marine engine that the utility model provides comprises cooling system, and wherein, cooling system is the as above disclosed marine engine cooling system of embodiment.The marine engine that the utility model provides can be reduced to intake temperature about 70 ℃, thereby reduce NO by a relatively large margin owing to adopted the disclosed marine engine cooling system of the foregoing description
xDischarging makes it satisfy IMO Tier 2 emission standard requirements.And model utility is through on former pipe type heat exchanger of engine basis; Increase a pipe type intercooler heat exchanger; The motor cost only increases about about 3,000 yuan, compares with the existing motor of whole plate fin type heat exchanger that adopts, and the utility model effectively reduces the motor cost.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiments shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. a marine engine cooling system is characterized in that, comprising:
Water pump (11), its outlet is connected through the cooling water inlet of pipeline with motor (13);
Heat exchanger of engine (16), its cooling water inlet is connected with the coolant outlet of said motor (13), and its coolant outlet is connected with the inlet of said water pump (11);
Intercooler heat exchanger (17), its cooling water inlet is connected with the outlet of said water pump (11), and its coolant outlet is connected with the cooling water inlet of intercooler (12), and the coolant outlet of said intercooler (12) is connected with the inlet of said water pump (11).
2. marine engine cooling system as claimed in claim 1 is characterized in that, said heat exchanger of engine (16) and said intercooler heat exchanger (17) all have the cooled with seawater passage.
3. marine engine cooling system as claimed in claim 1; It is characterized in that; Also comprise the motor thermostat (15) that is communicated between said motor (13) and the said heat exchanger of engine (16); The inlet of said motor thermostat (15) is connected with the coolant outlet of said motor (13), and two outlets of said motor thermostat (15) are connected with the cooling water inlet of said heat exchanger of engine (16) and the inlet of said water pump (11) respectively.
4. like each described marine engine cooling system of claim 1-3; It is characterized in that; Also comprise the intercooler thermostat (14) that is communicated between said water pump (11) and the said intercooler heat exchanger (17); The inlet of said intercooler thermostat (14) is connected with said water pump (11) outlet, and two outlets of said intercooler thermostat (14) are connected with the cooling water inlet of said intercooler heat exchanger (17) and the cooling water inlet of said intercooler (12) respectively.
5. marine engine cooling system as claimed in claim 4 is characterized in that, the inlet of said intercooler thermostat (14) is through on the pipeline between pipeline connection to said water pump (11) and the said motor (13).
6. a marine engine comprises cooling system, it is characterized in that, said cooling system is like each described marine engine cooling system of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120267131 CN202176398U (en) | 2011-07-26 | 2011-07-26 | Marine engine and cooling system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120267131 CN202176398U (en) | 2011-07-26 | 2011-07-26 | Marine engine and cooling system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176398U true CN202176398U (en) | 2012-03-28 |
Family
ID=45866283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120267131 Expired - Fee Related CN202176398U (en) | 2011-07-26 | 2011-07-26 | Marine engine and cooling system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176398U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867285A (en) * | 2014-03-06 | 2014-06-18 | 东风富士汤姆森调温器有限公司 | Retarder cooling system |
| CN111365114A (en) * | 2020-03-28 | 2020-07-03 | 潍柴重机股份有限公司 | Automatic cooling control system and control method for engine |
| CN111648852A (en) * | 2020-07-08 | 2020-09-11 | 安徽华菱汽车有限公司 | Marine engine |
| CN115163285A (en) * | 2022-06-20 | 2022-10-11 | 河南柴油机重工有限责任公司 | Novel self-adaptive circulating cooling system of marine diesel engine |
-
2011
- 2011-07-26 CN CN 201120267131 patent/CN202176398U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867285A (en) * | 2014-03-06 | 2014-06-18 | 东风富士汤姆森调温器有限公司 | Retarder cooling system |
| CN103867285B (en) * | 2014-03-06 | 2016-06-29 | 东风富士汤姆森调温器有限公司 | retarder cooling system |
| CN111365114A (en) * | 2020-03-28 | 2020-07-03 | 潍柴重机股份有限公司 | Automatic cooling control system and control method for engine |
| CN111648852A (en) * | 2020-07-08 | 2020-09-11 | 安徽华菱汽车有限公司 | Marine engine |
| CN115163285A (en) * | 2022-06-20 | 2022-10-11 | 河南柴油机重工有限责任公司 | Novel self-adaptive circulating cooling system of marine diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20170726 |