System for recycling waste heat of steam condensate water
A technology of waste heat recovery system and steam condensed water, which is applied in the direction of steam generation, preheating, supplementary water supply, etc., can solve the problem of underutilization of water resources and waste heat resources, and achieve saving usage, good effect, and saving steam costs Effect
Inactive Publication Date: 2016-02-10
YICHANG EZHONG CHEM
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The amount of condensed water generated by the steam used in the production unit reaches 38t / h. After the condensed water is used for evaporating liquid ammonia in the ammonia evaporator, the temperature is still about 115°C. Most of the water is directly discharged, and the water resources and waste heat resources are not fully utilized.
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[0014] Such as figure 1 As shown, a steam condensate waste heat recovery system includes a plate heat exchanger 1 and a pipeline system. The plate heat exchanger 1 is provided with a condensate outlet 1.1, a desalinated water outlet 1.2, a desalinated cold water inlet 1.3, and a condensed water hot water inlet 1.4.
[0015] The condensate outlet 1.1 is connected to the raw water tank 2, and the raw water tank 2 is connected to the desalinated water station. The desalinated water outlet 1.2 is connected to the deaerator 4 through the cold water main water pipe 3, and the deaerator 4 is connected to the boiler 5. The condensed water hot water inlet 1.4 is connected to the molten sulfur condensate water return pipe 6.1 and the ammonium phosphate condensate water return pipe 6.2. The condensed water outlet 1.1 and the condensed water hot water inlet 1.4 are connected by a hot water pipe 7. The desalinated cold water inlet 1.3 and the desalinated water outlet 1.2 are connected by a...
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The invention discloses a system for recycling waste heat of steam condensate water. The system comprises a plate heat exchanger. The plate heat exchanger is provided with a condensate water outlet, a desalted water outlet, a cold desalted water inlet and a hot condensate water inlet. The condensate water outlet is connected with a raw water tank, the desalted water outlet is connected with a deaerator through a main cold water pipe, and the deaerator is connected with a boiler. The hot condensate water inlet is connected with a sulfur melting condensate water returning pipe and an ammonium dihydrogen phosphate condensate water returning pipe. The condensate water outlet is connected with the hot condensate water inlet through a hot water pipe. The cold desalted water inlet is connected with the desalted water outlet through a cold water pipe. By means of the system for recycling the waste heat of the steam condensate water, the amount of low-pressure steam required by heating deoxidizing of the deaerator is decreased, and steam is saved; the amount of the use raw water is decreased, and a large quantity of water resources are saved.
Description
Technical field [0001] The present invention is a steam condensed water waste heat recovery system, which relates to the field of energy saving in chemical production. Background technique [0002] A company has two sets of sulphur-burning sulphuric acid plants. The waste heat boiler produces 60t / h high-temperature and medium-pressure steam. In addition to satisfying the requirements of sulfuric acid melting and ammonium phosphate production, the excess steam is used for power generation. The amount of condensed water produced by the steam used in the production device reaches 38t / h. After the amount of condensed water is used in the ammonia evaporator to evaporate the liquid ammonia, the temperature is about 115°C. Most of the water is directly discharged, and the water resources and waste heat resources are not fully utilized. As the steam condensate itself has good water quality, it is directly used without cooling, and the water temperature is too high to affect the resin in ...
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IPC IPC(8): F22D11/06
Inventor 金龙陈广雄申钢刘卫红
Owner YICHANG EZHONG CHEM