Device for recycling cooling water of carbon black exhaust gas boiler draught fans and rubber ball cleaning discharged water
A technology of exhaust gas boiler and recovery device, which is applied to supplementary water supply, liquid degassing, and feedwater heaters, etc., can solve the problems of wasting water resources, increasing the cost of circulating water dosing, increasing the pressure of sewage treatment, and the cost of system operation. , to achieve the effect of reducing water consumption, reducing steam consumption and improving boiler thermal efficiency
Inactive Publication Date: 2017-05-24
WUHAI BLACK CAT CARBON BLACK
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Problems solved by technology
These external drainages are discharged into the canals and flow into the sewage pool, which not only wastes water resources but also increases the pressure of sewage treatment and the cost of system operation, which significantly increases the cost of water and the cost of dosing of circulating water
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[0022] like figure 1 As shown, the cooling water of induced draft fan 1 and induced draft fan 2 is drawn from the main inlet pipe of circulating cooling water through pipe distribution, and water inlet valves 1, 2 3, 4. Install a flow meter 1 and 2 5, 6 after the water inlet valve, and install a thermometer 1, 2, 3, 4 13, 14, 15, 16 at the cooling point of the induced draft fan and on the cooling point, according to the temperature of the mechanical part Switch water inlet valves 1, 2 3, 4 to adjust the water volume, flow meters 1, 2 5, 6, and control the temperature of induced draft fan cooling points 1, 2, 3, 4 7, 8, 9, 10 within a suitable range. Install water outlet valves 1 and 2 11 and 12 after the cooling point of the induced draft fan to facilitate the isolation of the water source during maintenance. Under normal operation, the water outlet valve is fully open, and finally the cooling water outlets of the induced draft fan 1 and induced draft fan 2 are merged into the...
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The invention discloses a device for recycling cooling water of carbon black exhaust gas boiler draught fans and rubber ball cleaning discharged water. Thermometers are respectively mounted on draught fan cooling points of the draught fans; the draught fan cooling points on one side are connected with water discharging valves; the water discharging valves, a heat exchanger, a cooling tower, a circulating water tank, a circulating water pump, water feeding valves, flowmeters and the draught fan cooling points on the other sides of the draught fans are connected through circulating water pipes in sequence to form a passageway; the heat exchanger is further connected with an oxygen extractor and a soft water pump through water pipes; the soft water pump is connected with a soft water tank; the oxygen extractor is connected with a steam turbine and a water feeding pump; the water feeding pump is connected with a boiler. The device has the technical effects that 1, the equipment operation temperature is always kept in the best operation state; 2, by opening and closing of the water feeding valves, the flow can be controlled to adjust the temperature, and the water consumption is reduced; 3, the circulating water temperature is reduced, and the water vapor consumption is reduced; 4, by increase of the soft water temperature, the boiler heat efficiency is improved, and the steam consumption of the oxygen extractor during steam extraction is reduced.
Description
technical field [0001] The invention relates to an external drainage recovery device, in particular to a carbon black tail gas boiler induced draft fan cooling water and rubber ball cleaning external drainage recovery device. Background technique [0002] When producing carbon black in the prior art, the cooling water of the mechanical part of the boiler induced draft fan needs to be cooled by about 3 t / h of water, and the cooling water of the two induced draft fans is discharged at about 7 t / h, about 168 tons per day. Moreover, the cooling effect obtained by this equipment is not obvious, and the temperature of the mechanical part of the induced draft fan cannot be guaranteed to be within a reasonable operating range, and the size of the cooling water is low, so it is impossible to automatically reduce the amount of cooling water and reduce the consumption of cooling water. [0003] The condenser of the generator set is equipped with rubber ball cleaning equipment. In order...
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IPC IPC(8): F22D1/50F22D11/00
CPCF22D1/50F22D11/00
Inventor 牛森李核疆陈忠斌侯少波赵双庆张智广戴议平
Owner WUHAI BLACK CAT CARBON BLACK