A cold seal water system
CN224694499UActive Publication Date: 2026-08-28HENAN XINLIANXIN FERTILIZER
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Patent Information
- Application Number
- CN202521544130.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-07-22
AI Technical Summary
Technical Problem
[0002]气化和变换工段通常需要使用机械密封冲洗水进行冲洗，该机械密封冲洗水一般为脱氧水，传统技术中一般使用凉脱盐水进入除氧器中使用蒸汽对其进行热力除氧，热力除氧后的脱氧水温度为130℃左右，然后使用循环水作为换热介质，在换热器中对热力除氧后的脱氧水进行冷却，冷却后送入气化和变换工段作为机械密封冲洗水使用；上述过程中需要消耗大量的蒸汽对其进行热力除氧，同时还需要大量的循环水进行换热；由于热力除氧后的脱氧水和循环水的温差过大，直接导致换热器中的管程和壳程温差较大，极易出现泄漏的情况；即：传统技术中至少存在着如下缺陷：1、消耗大量的蒸汽以及循环水；2、换热器换热的过程中易发生泄漏，导致脱氧水中的氧含量大幅度提高
Benefits of technology
[0015]1、本实用新型的本质是对现有该冷密封水系统的改造，即：在现有冷密封水系统的基础上增设以汽轮机凝液为气化和变换工段的机械密封冲洗水的汽轮机凝液单元，通过利用汽轮机凝液与通过除氧器的脱盐水品质类似，且汽轮机凝液温度(温度为40℃左右)较低的特点，以解决传统技术中需要对了凉脱盐水进行热力除氧以及循环水降温的缺陷；由于上述技术方案可不使用冷密封水换热器，因此避免了换热器换热的过程中发生泄漏的问题。
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Abstract
The utility model belongs to a kind of cold sealing water system;Including cooling desalted water pipeline, cooling desalted water pipeline is connected with the import of deaerator by preheating heat exchanger, and the outlet of deaerator is connected with boiler feed water pump and cold sealing water heat exchanger respectively, cold sealing water heat exchanger is connected with the mechanical seal flushing water pipeline of gasification and shift section by cold sealing water pump, first tee is equipped between cold sealing water heat exchanger and cold sealing water pump, first valve is equipped between cold sealing water heat exchanger and first tee, third end of first tee is connected with steam turbine condensate unit by second valve, and steam turbine condensate unit includes steam turbine condensate delivery pipeline, and buffer portion is arranged between steam turbine condensate delivery pipeline and second valve;Using the characteristics that steam turbine condensate is similar to desalted water quality through deaerator and steam turbine condensate temperature is lower, the use amount of steam and circulating water can be effectively reduced, and the characteristics of energy saving and consumption reduction are realized.
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