On-line self-cleaning heat exchange enhancement sewage source heat pump system
A technology of sewage source heat pump and enhanced heat exchange, applied in heat pump, refrigeration and liquefaction, lighting and heating equipment, etc., can solve problems such as blockage of heat exchange tubes, growth of dirt, machine failure and so on
Inactive Publication Date: 2015-06-10
DALIAN BAOGUANG ENERGY SAVING AIR CONDITIONING EQUIP +1
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Problems solved by technology
[0005] In order to overcome the shortcomings of the above-mentioned prior art and effectively solve the problems of heat exchange tube blockage, dirt growth, low heat exchange efficiency, and machine failure caused by too much dirt and different sizes, the present invention provides a filter that can filter any Sewage source heat pump system with online self-cleaning and enhanced heat exchange
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[0011] like figure 1 As shown, the sewage in the main sewage canal 1 first passes through the mechanical grille 2 to remove large-scale dirt (the size of which is greater than 5mm), and is pumped into the automatic decontamination device 4 by the first-stage pump 3, and further removes the dirt (the size of which is greater than 5mm) size 3-5mm); the filtered sewage is extracted by the secondary pump 5, which is divided into two parts, one part enters the automatic decontamination device 4 through the backwash pipeline 8 to backwash the decontamination filter surface, and will adhere to the filter The dirt and sundries on the surface are washed away, and the control valve 10 installed on the backwash pipeline 8 adjusts the parameters such as the water volume and water pressure of the backwash; the other part enters the hair filter 7 to remove the hair-like dirt and sundries in the sewage , it adds solid particles before entering the sewage heat exchanger 15, strengthens the he...
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Disclosed is an on-line self-cleaning heat exchange enhancement sewage source heat pump system. The whole system comprises a sewage main canal, a mechanical grid, a first-stage pump, an automatic dirt-removal device, a second-stage pump, a heat exchanger water inlet pipeline, a hair filter, a back wash pipeline, a circulation pipe, a control valve a, a control valve b, a control valve c, a control valve d, a control valve e, a sewage heat exchanger, a solid-liquid separator and a heat exchanger water return pipeline. Sewage in the sewage main canal enters the mechanical grid, the automatic dirt-removal device and the hair filter sequentially, dirty impurities are removed stage by stage, part of the filtered sewage does not take part in heat exchange of the heat exchanger, and directly enters the automatic dirt-removal device to carry out back washing on a dirt-removal filtering surface, the dirty impurities attached to the filtering surface are washed to the downstream of the main canal, the other part of the filtered sewage enters the heat exchanger, and solid particles are added to prevent and remove scale and enhance heat exchange. A heat exchange surface is processed in a cladding mode to prevent scale from generating, and sewage pipes are back washed through valve switching to prevent scale from accumulating.
Description
technical field [0001] The invention belongs to a sewage heat exchange system, and relates to an efficient sewage heat exchange system capable of online cleaning and automatic decontamination. Background technique [0002] The use of cold and heat sources of sewage can alleviate the current situation of energy shortage. It has good energy-saving effects, environmental protection benefits and economic benefits. It will save increasingly scarce fresh water resources, open up new fields for energy utilization, and provide comprehensive and comprehensive utilization of water resources. A new train of thought. The main reason why sewage cold and heat sources are not widely used and promoted is that their water quality cannot meet the water quality standards required in the current water circulation system. In actual operation projects, these sewage often block the water pumps and heat exchangers, resulting in system performance. Significantly down, can't even run. [0003] In o...
Claims
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IPC IPC(8): F25B30/06
Inventor 毕海洋姚伟君
Owner DALIAN BAOGUANG ENERGY SAVING AIR CONDITIONING EQUIP