Return-flow seawater direct-current cooling system
A once-through cooling, seawater technology, applied in seawater treatment, heating water/sewage treatment, heat exchange equipment, etc., can solve the problems of large equipment investment, large water intake, complexity, etc., to reduce energy consumption, low equipment investment cost, simple structure
Active Publication Date: 2012-10-10
CISDI ENG CO LTD
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Problems solved by technology
In the north, the temperature of seawater in winter is usually about 10°C. In the prior art, the temperature rise of seawater is generally increased by reducing the amount of seawater entering the cooling heat exchanger, but it is more complicated to use this method to meet the temperature rise requirements. , equipment investment is large, and the temperature of seawater is unstable, which cannot well meet the requirements of seawater reuse
In addition, the existing cooling system takes a large amount of water, and the water intake and treatment of seawater consumes a lot of energy
Method used
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Embodiment Construction
[0013] figure 1 It is a structural schematic diagram of the present invention, figure 2 It is a structural schematic diagram of the present invention with a water storage tank, as shown in the figure: the backflow type seawater direct-flow cooling system of the present embodiment includes a heat exchanger 1 and a water intake pump 2 communicated with the cooling water inlet 1a of the heat exchanger 1, taking The water pump 2 is used to send seawater into the heat exchanger, and the cooling water outlet 1b of the heat exchanger 1 is communicated with the cooling water inlet 1a. A return flow for sending the cooling water from the cooling water outlet 1b back to the cooling water inlet 1a is provided. Pump 3, the sum of the flow rates of the return pump 3 and the water intake pump 2 is a certain value to ensure the stability of the seawater flow entering the heat exchanger, and the cooling water outlet 1b is provided with a water intake pump 2 adjusted according to the water te...
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The invention discloses a return-flow seawater direct-current cooling system, comprising a heat exchanger, and a water-taking pump communicated with an cooling water inlet of the heat exchanger, wherein a reflux pump which returns cooling water at the cooling water outlet to the cooling water inlet is arranged between the cooling water outlet and the cooling water inlet of the heat exchanger in acommunicated manner; the flow rate sum of the reflux pump and the water taking pump is a fixed value; the cooling water outlet is provided with a flow rate adjustment device which is used for adjusting the flow rate of the water taking pump and the reflux pump according to the water temperature of the cooling water outlet, when the temperature of the cooling water outlet is low, the flow rate adjustment device increases the flow rate of the reflux pump and decreases the flow rate of the water taking pump so that the seawater at the cooling water outlet enters the heat exchanger again and circulates for exchanging heat and the seawater at the cooling water outlet finally reaches the needed temperature. The system has simple structure and low equipment investment cost; and the energy consumption of the system can be effectively reduced by recycling the cooling water.
Description
technical field [0001] The invention relates to a cooling device using seawater as a cooling medium. Background technique [0002] Using seawater for equipment cooling is a trend of equipment cooling in coastal cities at present, and seawater direct current cooling is usually used at present. [0003] Warm water after equipment cooling often needs to be reused, such as for seawater desalination, which requires a large temperature rise of cooling water after equipment cooling. In the north, the temperature of seawater in winter is usually about 10°C. In the prior art, the temperature rise of seawater is generally increased by reducing the amount of seawater entering the cooling heat exchanger, but it is more complicated to use this method to meet the temperature rise requirements. , the equipment investment is large, and the temperature of seawater is unstable, which cannot well meet the requirements of seawater reuse. In addition, the existing cooling system takes a large ...
Claims
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IPC IPC(8): F28F27/00C02F1/04C02F103/08
Inventor 邱利祥
Owner CISDI ENG CO LTD