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Device for introducing cooling water to chilled water circulation system in polyester device

A technology of cooling water and chilled water, which is applied in the field of polyester equipment, can solve problems such as waste of energy resources, no interchangeability, and inability to switch between each other, and achieve the effect of reducing operating costs and costs

Inactive Publication Date: 2012-11-07
JIANGSU SHENJIU CHEM FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing polyester plant, the cooling water circulation system and the chilled water circulation system are independent of each other and cannot be switched to each other. replacement, still need to run two sets of units, resulting in a waste of energy resources

Method used

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  • Device for introducing cooling water to chilled water circulation system in polyester device

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Embodiment

[0015] Such as figure 1 As shown, the present invention provides a device for introducing cooling water into a chilled water circulation system in a polyester plant, comprising a cooling water outlet pipeline 1, a cooling water return pipeline 2, a chilled water outlet pipeline 3 and a chilled water return pipeline 4. The cooling water outlet pipeline 1 is connected to the chilled water outlet pipeline 3 through a first pipeline 5, and the cooling water return pipeline 2 is connected to the chilled water return pipeline 4 through a second pipeline 6. The first pipeline 5 is provided with a first valve 7 , and the second pipeline 6 is provided with a second valve 8 . Preferably, the first valve 7 and the second valve 8 are butterfly valves, the cooling water outlet pipe 1 and the first pipe 5, the chilled water outlet pipe 3 and the first pipe 5, the cooling water return pipe The water pipeline 3 and the second pipeline 6, the chilled water return pipeline 4 and the second pip...

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Abstract

The invention provides a device for introducing cooling water to a chilled water circulation system in a polyester device, relating to the field of polyester devices. The device comprises a cooling water outlet pipeline, a cooling water return pipeline, a chilled water outlet pipeline and a chilled water return pipeline, wherein the cooling water outlet pipeline and the chilled water outlet pipeline are connected by a first pipeline, the cooling water return pipeline and the chilled water return pipeline are connected by a second pipeline, a first valve is arranged on the first pipeline, and a second valve is arranged on the second pipeline. According to the technical scheme that a cooling water circulation system and a chilled water circulation system are in pipeline connection, when the environment temperature in winter is lower, cooling water can be switched to use instead of chilled water and a chilling unit is stopped to run, so that relevant running expenses are reduced, and then, the purposes of energy saving, consumption reduction and cost reduction are achieved.

Description

technical field [0001] The invention relates to the field of polyester devices, in particular to a device for introducing cooling water into a chilled water circulation system in the polyester device. Background technique [0002] The polyester plant system requires a chilled water circulation system, in which the temperature of the circulating chilled water (hereinafter referred to as chilled water) is generally 7-15°C, and the cooling medium of the plate heat exchanger required for the polycondensation ethylene glycol (EG) spray system requires a low temperature. At the same time, the polyester plant also has a cooling water circulation system, in which the circulating cooling water (hereinafter referred to as cooling water) generally has a temperature of 14-34°C, and is used for the surface condenser of the vacuum unit, the esterification steam cooler and other EG spray cooling systems. [0003] Due to the low temperature in winter, especially in the northern regions, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F27/00
Inventor 朱希访邱国全张治义申伟
Owner JIANGSU SHENJIU CHEM FIBER CO LTD
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