SU1204485A1 - Ship system of high-temperature cooling of diesel engine with heat waste recovery - Google Patents

Description

The invention relates to shipbuilding, in particular to ship systems for high-temperature cooling of diesel engines with the utilization of its heat.

The purpose of the invention is to reduce the loss of heat from the cooling water and increase the efficiency of the diesel.

The drawing shows schematically the proposed ship's system of high-temperature diesel cooling with its heat recovery.

The ship system contains a diesel engine 1 with cooling cavities, which via pipelines is connected to a circulation pump 2, the output of which is hydraulically connected to the inputs of parallel-installed vacuum desalination unit (HEU) 3, air conditioning unit 4 (VHF), and drinking water heaters 5 and wash 6 water, fuel 7 before diesel, fuel 8 before its separator, circulating oil 9 before its separator, circulating oil tanks 10 and fuel 11. The outputs of these heaters HEU 3 and VHF 4 are connected to a throttle device 12, which is connected to the pair separator 13. The pair separator 13 is connected to the valve.

cooking oil, coolants 28 cooling pistons and nozzles 29. The outputs of these coolers 27-29 are connected to the inlet of the air cooler 30, the output of which is connected to the diesel engine 1.

Ship system works as follows.

The heat carrier heated in the cooling cavity of diesel 1 to a temperature of 100-110 ° C goes to the circulation pump 2 and then passes through HEA 3, VHF 4, heaters 5-11.

The coolant, while cooling, gives off heat to these consumers. Then the coolant through the throttle device 12 enters the steam separator 13, where the pressure is 0.3-0.5 bar less. With the passage of the coolant through the throttle device 12 is its partial evaporation. A portion of the coolant that does not evaporate is fed by the circulation pump 15 to the steam generating section 16 of the utilization boiler 17, where it is completely evaporated and turned into saturated steam. Saturated steam from section 16 enters the steam separator 13, where it is separated and after that enters the superheater section 18. At the steam supply separator 14 to the general 2.5 otor of the steam 13, steam is taken to customers. By means of the pipeline, the steam separator 13 is connected to circulating pump 15, which is connected by pipeline with the steam generating section 16 of the utilization boiler 17. The outlet of this section 16 is connected to the steam separator 13. In addition, the steam separator 13 is connected to the steam generating section 18 of the utilization boiler 17. The output of section 18 is connected by a steam pipe to the input of the utilization turbine 19, which is connected to the generator 20 and the gearbox 21, transmitting excess power to the propeller 22. The output of the turbine 19 is connected to the input a condenser 23, the outlet of which is connected to the inlet of the condensing pump 24. The condensate pump 24 is connected to a warm box 25. An additional circulating pump 26 is connected to the warm box 25, which is connected to the coolers 27 c by piping p35

40

general ship consumers through the valve box 14.

Superheated steam from section 18 enters the turbine 19, where it gives up its thermal energy. Then the exhaust steam enters the condenser 23 where it condenses. From condenser 23, condensate with a temperature of 33 ° C by condensate pump 24 is fed to a warm box 25, from where an additional circulation pump 26 is pumped through oil cooler 27 and coolers 28 and 29 of coolants for pistons and nozzles, where the condensate is heated to a temperature of 40-45 ° WITH. After that, the coolant (condensate) enters the air cooler 30, where it is heated to a temperature of 95–100 ° C and the charge air is cooled to a temperature of 45–50 ° C. Next, the coolant enters the cooling cavity of diesel 1.

cooking oil, coolants 28 cooling pistons and nozzles 29. The outputs of these coolers 27-29 are connected to the inlet of the air cooler 30, the output of which is connected to the diesel engine 1.

Ship system works as follows.

The heat carrier heated in the cooling cavity of diesel 1 to a temperature of 100-110 ° C goes to the circulation pump 2 and then passes through HEA 3, VHF 4, heaters 5-11.

The coolant, while cooling, gives off heat to these consumers. Then the coolant through the throttle device 12 enters the steam separator 13, where the pressure is 0.3-0.5 bar less. With the passage of the coolant through the throttle device 12 is its partial evaporation. A portion of the coolant that does not evaporate is fed by the circulation pump 15 to the steam generating section 16 of the utilization boiler 17, where it is completely evaporated and turned into saturated steam. The saturated steam from section 16 enters the steam separator 13, where it is separated and then goes to the steam superheater section 18. At the steam separator 13, steam is provided for

Torah 13 pair provides for the selection of steam on

general ship consumers through the valve box 14.

Superheated steam from section 18 enters the turbine 19, where it gives up its thermal energy. Then the exhaust steam enters the condenser 23 where it condenses. From condenser 23, condensate with a temperature of 33 ° C is fed by condensate pump 24 to a warm box 25, from where an additional circulation pump 26 is pumped through oil cooler 27 and coolers 28 and 29 of coolants for pistons and nozzles, where the condensate is heated to 40-45 ° C . After that, the coolant (condensate) enters the air cooler 30, where it is heated to a temperature of 95-100 ° C and the charge air is cooled to a temperature of 45-50 ° C. Next, the coolant enters the cooling cavity of diesel 1.

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Compiled by A. Strokov

Editor Y. SeredaTehred I. VeresKorrektor A. Zimokosov

Order 8474/18 Circulation 434Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (1)

(56) Krivov V.G., Sinatov S.A. Improving the efficiency of diesel power plants. - Engine building, 1979, No. 10, p. 14-18. (54) (57) SHIP SYSTEM OF HIGH-TEMPERATURE COOLING OF A DIESEL WITH DISPOSAL OF ITS HEAT, containing a circulation pump, an evaporator, a recovery boiler connected to a gas exhaust device of a diesel engine, an oil cooler and an air cooler, which is connected to a steam recovery steam boiler at the outlet with a condenser and condensate pump, characterized in that, in order to reduce heat loss with cooling water and increase the efficiency of the diesel engine, it is equipped with an additional circuit circulation pump, vacuum desalination plant, air conditioning installation, heaters for drinking and washing water, fuel in front of the diesel engine and in front of its separator, circulation oil in front of its separator, circulation oil and fuel tanks, throttle device, steam separator, valve box for supplying steam to general ship consumers , with a warm box, coolers for coolants of pistons and diesel injectors, while the output of the circulation pump is hydraulically connected to the inputs in parallel nnyh vacuum desalination plant, air conditioning units, heaters drinking and washing water, and diesel fuel prior to its cage, before oil circulation separator tank circulation of oil and fuel. moreover, the outputs of the heaters, as well as the desalination plant and the air conditioning unit are communicated with the input of the throttle device, and the output of the throttle device is communicated with the input of the steam separator, selected by the steam supply box to general ship consumers and with a recovery boiler, which is through a steam turbine, condenser and the condensate pump is in communication with the inlet of the warm box, the output of which through the additional circulation pump is communicated with the input of the piston and nozzle coolant coolers installed in parallel a diesel engine, and outputs these coolers communication with the input air cooler and then through to the input of the aforementioned diesel main circulation pump.