Method for circularly heating sea water in culture pond and efficiently utilizing waste water in culture pond
A technology for circulating heating and breeding ponds, applied in the marine field, can solve the problems of not comprehensive utilization of heat, furnace corrosion, and increased production costs.
Inactive Publication Date: 2011-10-05
QINGDAO KEHUI BOILER & PRESSURE VESSEL
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Problems solved by technology
In this method, firstly, because the seawater boiler heats seawater in the furnace, the heated seawater directly enters the culture pond by adjusting the temperature, so it is easy to cause corrosion of the furnace, and the furnace of the seawater boiler needs to be replaced frequently, resulting in increased production costs; secondly, Since the wastewater discharged from the breeding pond is usually about 20 degrees Celsius higher than the ambient temperature or seawater temperature, the remaining heat has not been comprehensively utilized
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[0016] The present invention will be further elaborated below in conjunction with embodiment.
[0017] Methods for circulation heating of seawater in aquaculture ponds and efficient utilization of wastewater in aquaculture ponds:
[0018] Seawater secondary preheating: use the tail gas of the heating gas boiler to preheat the new seawater twice, that is, set a seawater preheater in the flue of the heating gas boiler, and use the high-temperature exhaust gas of the heating gas to treat the waste water from the breeding pond once. The preheated new seawater is preheated twice.
[0019] Seawater is heated three times: the hot fresh water from the gas-fired boiler passes through the heat exchanger to heat the new seawater that has been preheated twice; the temperature of seawater in this process can be entered through seawater and hot fresh water enters the heat exchanger according to the needs of the breeding pond The flow is controlled to achieve the temperature required by the...
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The invention discloses a method for circularly heating sea water in a culture pond and efficiently utilizing waste water in the culture pond. In the method, a normal fresh water hot-gas-fired boiler is used as a heat source. The method comprises the following steps of: preheating the sea water twice, heating the sea water three times, recycling fresh water, heating the culture pond with the sea water, and reutilizing the waste water in the culture pond. By utilizing the method, the conventional sea water boiler can be replaced, the cost for a culturist to maintain the boiler can be lowered, most importantly, the heat of the waste water in the culture pond is fully utilized, a heat supply system of the entire culture pond is optimized, and the aims of comprehensive utilization of the waste heat, higher economy and practicability and low production cost are fulfilled.
Description
technical field [0001] The invention belongs to the marine field, and in particular relates to a method for circulating seawater in a culture pond and a method for efficiently utilizing waste water in the culture pond. Background technique [0002] At present, in the field of mariculture, seawater boilers are usually used to increase the water temperature of the aquaculture pond, and the wastewater discharged from the aquaculture pond is directly discharged. In this method, first of all, because the seawater boiler heats seawater in the furnace, the heated seawater directly enters the culture pond by adjusting the temperature, so it is easy to cause corrosion of the furnace, and the furnace of the seawater boiler needs to be replaced frequently, resulting in increased production costs; secondly, Since the wastewater discharged from the culture pond is usually about 20 degrees Celsius higher than the ambient temperature or seawater temperature, the remaining heat has not been...
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IPC IPC(8): C02F1/02
Inventor 位敏祥林建荣位京民马民强
Owner QINGDAO KEHUI BOILER & PRESSURE VESSEL