Method and device for exchanging heat between sea water and clear water

Abstract

The invention relates to a method for exchanging heat between sea water and clear water. The method includes the steps as follows: step one, a refrigerant flows into a sea water space to exchange heat with the sea water, and simultaneously, the refrigerant has a phase change; step two, after the refrigerant exchanges heat with the sea water, the refrigerant flows into a clear water heat exchanger and exchanges heat with the clear water through a dividing wall, and the refrigerant has a phase change again; and step three, the step one is repeated again. The method is characterized in that heat exchange between the refrigerant and the sea water is achieved by direct contact. The invention further discloses a device for exchanging heat between the sea water and the clear water. The device takes an appearance of a vertical pressure vessel and comprises upper and lower elliptical heads, a lower elliptical head, an intermediate cylindrical barrel, a sea water loop, a clear water loop and a refrigerant loop, wherein the sea water loop, the clear water loop and the refrigerant loop are arranged inside the device. The specific structure includes a refrigerant layer and a sea water chamber arranged at the lower part of the barrel, the clear water heat exchanger hung at the upper part of the barrel, and a sea water spray heat exchange chamber arranged in a middle space, formed between the clear water heat exchanger and the refrigerant layer, of the barrel. The device is characterized in that the sprayed sea water is mixed with the refrigerant in the sea water spray heat exchange chamber, so that heat exchange by direct contact is achieved.

Description

technical field [0001] The invention relates to heat exchange technology, in particular to a seawater-clear water heat exchange method and a seawater-clear water heat exchanger. Background technique [0002] Using seawater as a cold and heat source, heating and air-conditioning buildings through seawater source heat pumps can directly reduce the consumption of other energy shortages, and at the same time achieve the purpose of waste utilization. important measures of the environment. [0003] The seawater source heat pump realizes the recycling of waste heat and turns waste into treasure. It is a new type of renewable and clean energy utilization technology, which meets the requirements of sustainable development and building a resource-saving society. The combination of water source heat pump system technology and urban seawater has far-reaching significance in expanding the scope of urban seawater utilization and expanding the benefits of urban seawater treatment. [000...

AI Technical Summary

Problems solved by technology

[0020] 2. The direct seawater source heat pump unit using the seawater-clear water heat exchange method and seawater-clear water heat exchanger uses primary seawater as the heat source, which is easier to pollute and block than the general seawater-clear water heat exchange method and seawater-clear water heat exchanger , so that the efficiency of the sea water source heat pump decreases, and even cannot work

The seawater-clear water heat exchange method is very different from the seawater-clear water heat exchanger and the working conditions of ordinary heat exchangers. The design method and experience of ordinary heat exchangers cannot be simply used in the seawater-clear water heat exchange method and seawater- Fresh water heat exchangers, especially seawater-refrigerant heat exchangers

[0023] Although the design method and manufacturing process of ordinary heat exchangers are very mature, the seawater-clean water heat exchange method and the seawater-clear water heat exchanger scientific design method have not yet been well resolved.

Images