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Reciprocating engine waste heat recovery system and method

A waste heat recovery system and engine technology, which is applied to engine components, combustion engines, machines/engines, etc., can solve the problem of energy loss and achieve the effect of reducing energy consumption

Active Publication Date: 2018-01-12
SHANGHAI POWER TECH SCREW MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The reciprocating engine will generate a large amount of waste heat. Nowadays, there is no better way to recover the waste heat of the reciprocating engine, thus losing a lot of energy virtually.

Method used

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  • Reciprocating engine waste heat recovery system and method
  • Reciprocating engine waste heat recovery system and method
  • Reciprocating engine waste heat recovery system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] See figure 1 The present invention discloses a reciprocating engine waste heat recovery system, which includes: a first heat exchanger 1, a second heat exchanger 2, an evaporator 3, an expander 4, a generator 5, an oil separator 6, a condenser Device 7, liquid pump 8, circulating pump 10, preheater 9.

[0047] The first heat exchanger 1 is provided with a flue gas inlet and is connected to the reciprocating engine 100 through the flue gas inlet. The first heat exchanger 1 is also provided with a flue gas outlet to discharge the flue gas after heat exchange. The second heat exchanger 2 is provided with a jacket water inlet and a jacket water outlet respectively connected with the reciprocating engine.

[0048] The evaporator 3, expander 4, oil-water separator 6, condenser 7, liquid pump 8, and preheater 9 are connected in sequence (to form a loop); the preheater 9 is connected to the evaporator 3, and the expander 4 is connected to the generator 5. The evaporator 3, the exp...

Embodiment 2

[0058] See figure 2 , The present invention discloses a reciprocating engine waste heat recovery system, the waste heat recovery system includes: a first heat exchanger 1, a second heat exchanger 2, an evaporator 3, an expander 4, a generator 5, a flash drum 13, The oil separator 6, the condenser 7, the first liquid pump 8, the second liquid pump 12, the first circulation pump 11, the second circulation pump 10, and the preheater 9.

[0059] The first heat exchanger 1 is provided with a flue gas inlet and is connected to the reciprocating engine 100 through the flue gas inlet. The first heat exchanger 1 is also provided with a flue gas outlet; Connected jacket water inlet and jacket water outlet.

[0060] The evaporator 3, the expander 4, the oil-water separator 6, the condenser 7, the first liquid pump 8, and the preheater 9 are connected in sequence, the preheater 9 is connected to the evaporator 3, and the expander 4 is connected to the generator 5; The heat exchanger 9, the f...

Embodiment 3

[0072] See image 3 The difference between this embodiment and the second embodiment is that in this embodiment, the waste heat recovery system includes two expanders and two generators, specifically including a first expander 41, a second expander 42, and a first power generator. 机51, a second generator 52.

[0073] The evaporator 3, the first expander 41, and the oil separator 6 are connected in sequence, the preheater 9, the flash barrel 13, the second expander 42, and the oil separator 6 are connected in sequence; the first expander 41 is connected to the first The generator 51 and the second expander 42 are connected to the second generator 52.

[0074] The flue gas of the reciprocating engine 100 enters the first heat exchanger 1 through the flue gas inlet to exchange heat, and the flue gas after the heat exchange is discharged through the flue gas outlet; the first carrier medium passes through the first heat exchanger 1 and evaporates The device 3 and the first circulating...

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PUM

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Abstract

The invention discloses a reciprocating engine afterheat recovery system and a method. The system comprises a first heat exchanger, a second heat exchanger, an evaporator, an expander, a generator, an oil separator, a condenser, a liquid pump, a circulating pump and a preheater; the first heat exchanger is provided with a smoke inlet, is connected with a reciprocating engine through the smoke inlet, and is additionally provided with a smoke outlet; the second heat exchanger is provided with a cylinder jacket water inlet and a cylinder jacket water outlet respectively connected with the reciprocating engine; the evaporator, the expander, the oil separator, the condenser, the liquid pump and the preheater are connected in sequence; the preheater is connected with the evaporator; the expander is connected with the generator; the second heat exchanger, the first heat exchanger, the evaporator, the preheater and the circulating pump are connected in sequence to form a loop; and a current carrying medium is circulated in the loop. The reciprocating engine afterheat recovery system and method, proposed by the invention, can use afterheat of the reciprocating engine for generating electricity to achieve the effects of energy conservation and environmental protection.

Description

Technical field [0001] The invention belongs to the technical field of energy saving, and relates to a waste heat recovery system, in particular to a reciprocating engine waste heat recovery system; at the same time, the invention also relates to a reciprocating engine waste heat recovery method. Background technique [0002] A reciprocating engine is also called a piston engine. It is an engine that uses one or more pistons to convert pressure into rotational kinetic energy. It is also a machine that converts the kinetic energy of the piston into other mechanical energy. It mainly uses the heat generated by fuel combustion to pass through the liquid ( Such as the expansion of water) or gas, which pushes the piston and converts thermal energy into kinetic energy. [0003] The reciprocating engine generates a large amount of waste heat. Nowadays, there is no better way to recover the waste heat of the reciprocating engine, thus virtually losing a large amount of energy. [0004] In v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K25/10F01K23/10F01K23/04F02G5/04
CPCF01K23/04F01K23/065F01K23/10F01K25/10F02G5/04F02G2260/00Y02E20/14Y02T10/12
Inventor 汤炎齐井文
Owner SHANGHAI POWER TECH SCREW MACHINERY