Water hammer shock wave impulse heat exchange device applied to ship water waste heat recovery system

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028]like Figure 1 to Figure 7 As shown in the figure, the water hammer shock wave pulsation heat exchange device applied to the ship water waste heat recovery system of the present invention includes a plate heat exchanger 2, and the plate heat exchanger 2 routes the heat generated by the diesel engine cylinder liner water heat source 1 through the plate heat exchanger. 2 heat exchange, circulating heat exchange in the plate heat exchanger 2 through the first water pump 3, and the other way through the centrifugal water pump 9 to drive the cooling medium to flow through the flow regulating valve 5 and the impact valve 6 set on the main circuit to enter the plate heat exchange. There is a three-way valve between the flow regulating valve 5 and the impact valve 6, and one port of the three-way valve is connected to the spring check valve 7, which is located in the energy storage tank 8, and the energy storage The tank material is stainless steel or plastic material, and the shape is a cuboid or a column. The energy storage tank 8 is connected to the main circuit through a branch pipeline, and the nozzle cross-sectional area of ​​the branch pipeline is smaller than that of the main circuit. There is a heat extraction device 10 for cooling the heated cooling medium, and a deaerator 4 is installed at the inlet of the plate heat exchanger 2 and the outlet of the heat extraction device 10 to prevent cavitation from damaging the device. The closing force of the valve body of the impact valve is less than the maximum impact force of the fluid, the closing force of the valve body of the spring one-way valve 7 is less than the maximum pulsating wave pressure generated, and the closing force of the spring one-way valve is 2 of the closing force of the impact valve. times.

[0029] In the present invention, the impact valve includes an inlet end, a steel valve body 63, a shaft 65, an impact washer 64, an O-ring 61, a nut 62 and an outlet end 66, and the steel valve body 63 is a cavity Structure, the steel valve body 63 is provided with an inlet end and an outlet end 66, a shaft 65 moving along the steel valve body is arranged in the steel valve body 63, and an O-ring 61 and an impactor are installed on the shaft 65. Gasket 64, the impact gasket 64 is fixed by the nut 62 installed on the shaft 65, the fluid flows in from the inlet end, when the fluid pressure is too large, the impact gasket 64 pushes upward to close the outlet end, and the fluid stops; when the fluid pressure gradually decreases When the fluid is small or the fluid flows back, the fluid force is not enough to overcome the weight of the impact washer 64 , and the impact washer 64 is separated from the O-ring 61 .

[0030] In the present invention, the spring one-way valve includes a steel spring valve body 73, a steel ball 72, and a spring 71. The steel spring valve body 73 is provided with an inlet and an outlet, and a steel ball 72 is provided at the inlet, and the steel ball 72 and the spring 71 are provided. One end of the spring 71 is mounted on the mounting plate 74, the mounting plate 74 is fixed in the cavity of the steel spring valve body 73, the mounting plate 74 is provided with a number of through holes, and the spring 71 acts to press the steel ball 72 against the steel ball 72. On the spring valve body 73, the pipeline between the one-way valve and the actuator is cut off. The fluid flows in from the inlet end, and a certain opening pressure is required to push the steel ball 72 to be able to open, and the fluid can flow; when the fluid pressure does not reach the opening force, stops working or the fluid returns, the spring 71 pushes the steel ball 72 to the inlet position to form Seal, play a non-return function.

[0031] In the present invention, the heat-extracting equipment 10 is a pan-type heating oil tank. The disk-type heating oil tank includes a coil heat exchanger 12 and an oil tank 13. The coil heat exchanger is communicated with the main circuit, and the pan The tube heat exchanger is located in the oil tank 13, and the coil heat exchanger is provided with an inlet fluid and an outlet fluid, the inlet fluid is the high temperature cooling medium after heat exchange, and the outlet fluid is the low temperature cooling medium after another heat exchange. The oil tank 13 can also be an absorption heat pump air conditioning system, heating, economizer and the like.

[0032] In the present invention, the closing force of the impact valve 6 is much smaller than the closing force of the spring check valve 7. When the flow rate of the cooling medium reaches a certain value, the impact valve 6 is closed due to water pressure, and a hydraulic impact is generated in the main circuit. After time, the impact force is enough to open the spring one-way valve 7, and its positive diffusion wave acts on the air chamber, causing pulsation, the pulse is transmitted to the main circuit through the branch pipe, and the pulsation is generated in the main circuit, waiting for its positive diffusion When the wave is consumed and transformed into a negative diffusion wave, the impact valve 6 is automatically opened to complete a cycle, reciprocating, and pulsation is generated in the plate heat exchanger 2, so that the heat exchange efficiency of the plate heat exchanger 2 is greatly improved. The high temperature water is transported to the heat extraction device 10 through the centrifugal water pump 9 .

[0033] The above is only the preferred embodiment of the present invention, it should be pointed out that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made, and these improvements and modifications are also It should be regarded as the protection scope of the present invention.