Mechanical type refrigerating cold trap system for sewage source of pharmaceutical factory

A sewage source, mechanical technology, applied in refrigerators, refrigeration components, mechanical equipment, etc., can solve the problems of insufficient use of high-grade energy, increased heat transfer resistance, difficult to control, etc., to improve energy efficiency and reliability. High performance, the effect of eliminating ice blockage

Active Publication Date: 2020-07-03
EAST CHINA JIAOTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Liquid nitrogen direct expansion refrigeration has a series of problems such as high cost and difficult control; thermoelectric refrigeration is relatively simple, but there are also problems such as low efficiency and insufficient use of high-grade energy
In addition, when the gas is separated ...

Method used

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  • Mechanical type refrigerating cold trap system for sewage source of pharmaceutical factory
  • Mechanical type refrigerating cold trap system for sewage source of pharmaceutical factory
  • Mechanical type refrigerating cold trap system for sewage source of pharmaceutical factory

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Embodiment Construction

[0024] The present invention will be further explained below in conjunction with accompanying drawing, it is necessary to point out here that the following specific embodiments are only used to further illustrate the present application, and should not be interpreted as limiting the protection scope of the present application. Application content Some non-essential improvements and adjustments are made to this application.

[0025] Please refer to the accompanying drawings, a pharmaceutical factory sewage source mechanical refrigeration cold trap system, which includes a sewage source refrigeration cold trap system, a jacketed ice melting system, and a waste cold recovery system.

[0026] First, the gas is separated and processed. When the condensation temperature required for the gas to be captured in the cold trap 1 is relatively high, the sewage source refrigeration cold trap system starts the cold trap 1, the evaporator coil 2, the low-level refrigeration compressor 3, and ...

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PUM

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Abstract

The invention discloses a mechanical type refrigerating cold trap system for a sewage source of a pharmaceutical factory, and relates to the technical field of pharmaceutical factory cold trap separation. The system mainly comprises a sewage source refrigerating cold trap system, a jacket type ice melting system and an excessive cold recycling system, wherein a refrigerant working medium loop in the sewage source refrigerating cold trap system and a circulating water loop in the jacket type ice melting system separately define a closed-type cycle; an ice melting cold water pipeline in an excessive cold recycler is connected to a cold trap and a pharmaceutical factory sewage tank; and a condensing gas pipeline of the excessive cold recycling system is connected to the cold trap and the excessive cold recycler. The sewage source refrigerating cold trap system adopts pharmaceutical factory sewage with relatively stable flow as a condenser coiled tube side heat exchange medium, and can improve system operation stability and operation efficiency; a refrigerating system adopts two-stage compression, and can meet gas trap temperature requirements of different gases; the jacket type ice melting system recycles heat at the high-temperature condenser coiled tube side for removing ice blockage for the cold trap; and the excessive cold recycler can effectively recycle cold amount of condensed gas and ice molten water.

Description

technical field [0001] The invention relates to the technical field of cold trap separation in pharmaceutical factories, in particular to a mechanical refrigeration cold trap system for sewage sources in pharmaceutical factories. Background technique [0002] At present, domestic cold traps mostly use liquid nitrogen direct expansion and thermoelectric refrigeration. Liquid nitrogen direct expansion refrigeration has a series of problems such as high cost and difficult control; thermoelectric refrigeration is relatively simple, but there are also problems such as low efficiency and insufficient use of high-grade energy. In addition, when the gas is separated in the cold trap, the water vapor in the air exchanges heat with the refrigerant working fluid and then solidifies into ice crystals that adhere to the surface of the heat transfer coil, increasing the heat transfer resistance, which is not conducive to the normal operation of the refrigeration cycle. [0003] Pollutant...

Claims

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Application Information

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IPC IPC(8): F25B1/10F25B41/06F25B27/02F25B43/04F25B41/34
CPCF25B1/10F25B27/02F25B43/043F25B41/31Y02A30/274Y02B30/70Y02P80/10
Inventor 张娜王庆港谢红王鑫谢越
Owner EAST CHINA JIAOTONG UNIVERSITY
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