Pulsating flow enhanced heat exchange ship cooling water system

A technology for cooling water system and strengthening heat exchange, applied in ship propulsion, ship parts, ship construction, etc., can solve the problems of low reliability, unadjustable duty cycle, complex structure of pulsation generating device, etc., and achieve good strengthening effect , the effect of improving heat exchange efficiency

Pending Publication Date: 2021-06-18
JIANGSU UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the structure of the pulsation generating device is relatively complicated, and the long-term operation reliability of the flow pulsation controlled by the motor rotation is not high, and the pulsation frequency and duty cycle cannot be adjusted

Method used

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  • Pulsating flow enhanced heat exchange ship cooling water system
  • Pulsating flow enhanced heat exchange ship cooling water system
  • Pulsating flow enhanced heat exchange ship cooling water system

Examples

Experimental program
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Embodiment Construction

[0022] Such as figure 1 As shown, the pulsating flow enhanced heat exchange ship cooling water system includes a main engine 11, and the main engine 11 is provided with a main engine liner cooling water outlet 8 and a main engine liner cooling water inlet 9, which are respectively used for entering and leaving cooling water, and a high-temperature water circuit 24 The cooling water outlet 8 of the main engine liner, the high-temperature fresh water circulating pump 23, the cooler 6 of the main engine liner, the first three-way valve 7 and the cooling water inlet 9 of the main engine liner, and the side branch connected to the first three-way valve 7 The pipeline can short-circuit the jacket cooler 6 of the main engine; the low-temperature fresh water circuit 20 connects the jacket cooler 6 of the main engine, the central cooler 18, the second three-way valve 10, the low-temperature fresh water pump 12 and the jacket cooler 6 of the main engine in series to form a circuit , the...

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Abstract

The invention discloses an energy-saving ship cooling water system based on a pulsating flow enhanced heat exchange technology, and belongs to the technical field of heat exchange. In a first pulsation generating device, a one-way check valve and a diaphragm electromagnetic valve are sequentially connected in series through a pipeline in the water flow direction to form a pulsation generating branch, and a flow adjusting valve is installed on the flow adjusting branch; the pulsation generation branch is connected with the flow regulation branch in parallel; a gas diaphragm type hydraulic energy accumulator is connected between the diaphragm electromagnetic valve and the one-way check valve through a three-way piece, the time relay controls opening and closing of the diaphragm electromagnetic valve, and the first pulsation generating device is connected between the high-temperature fresh water circulating pump and the main engine cylinder sleeve cooler in series. The invention has the beneficial effects that the heat exchange efficiency of a cooling system is effectively improved, the pulsating flow strengthening device can effectively control the frequency and the duty ratio, pulsating strengthening work can be completed without an external power supply device, and extra energy consumption is avoided; the strengthening effect is better than that of a strengthening device driven by a transmission motor.

Description

technical field [0001] The invention belongs to the technical field of energy saving and heat exchange, and relates to an enhanced heat exchange device for a ship's cooling water system, specifically comprising an enhanced plate heat exchanger and a device for forced convection heat exchange in a cylinder jacket water cooling chamber of a diesel engine and its working method. Background technique [0002] The ship's cooling water system is an important part of the ship's power plant, and plays an irreplaceable role in ensuring the normal navigation of the ship and the normal operation of various equipment. Relevant research mainly focuses on improving the heat exchange efficiency of the heat exchange equipment of the cooling system, thereby reducing the energy consumption of driving the circulation of the cooling medium. [0003] The invention patent with the patent number 202010986752.5 converts a part of the temperature difference into electric energy by installing a therm...

Claims

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Application Information

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IPC IPC(8): B63H21/38
CPCB63H21/383
Inventor 王军陈浩马李琛王旻琪刘耀辉
Owner JIANGSU UNIV OF SCI & TECH
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