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Heat exchange system constant pressure variable air volume device and method thereof

A heat exchange system and variable air volume technology, used in the fields of chemical industry and plastic drying, can solve problems such as affecting the performance of plastic products, surface defects, and polymer chain breakage.

Active Publication Date: 2017-08-11
SICHUAN HUINENG ENERGY INVESTMENT MANAGEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the transformation or polymerization process, the particles will melt at a higher temperature, and if there is moisture in the particles, the moisture will become a component in the polymer molecular chain, resulting in the breakage of the polymer chain and the generation of bubbles, pores and bubbles in the polymeric material. / or surface defects, which in turn affect the performance of plastic products

Method used

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  • Heat exchange system constant pressure variable air volume device and method thereof
  • Heat exchange system constant pressure variable air volume device and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0075] The schematic diagram of the device in this embodiment is as figure 1 As shown, the device includes a plastic drying hopper, a plate heat exchanger, an electric heating device, a first fan, a second fan, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, and a pressure regulating mechanism , the first pipeline is provided with a first solenoid valve, and the second pipeline is provided with a second solenoid valve. The pressure regulating mechanism includes a control system, a first pressure sensor arranged on the first pipeline, and a second pressure sensor arranged in the plastic drying hopper, and the control system is respectively connected with the first pressure sensor, the second pressure sensor, the first solenoid valve, The second solenoid valve is connected.

[0076]Wherein, the plate heat exchanger is respectively provided with a cold air inlet, a cold air outlet, a hot air inlet, and a hot air outlet for air entry. ...

Embodiment 2

[0091] The schematic diagram of the device in this embodiment is as figure 2 As shown, the device includes a plastic drying hopper, a plate heat exchanger, an electric heating device, a first fan, a first pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a pressure regulating mechanism, and the first fan is a frequency conversion fan. The plate heat exchanger is respectively provided with a cold air inlet, a cold air outlet, a hot air inlet, and a hot air outlet for air entry. The cold air outlet is connected to the first fan through the first pipe and the gas entering through the cold air inlet passes through the plate heat exchanger after heat exchange. Can enter the first blower through the duct. The first blower is connected with the plastic drying hopper through the third pipeline, the electric heating device is arranged on the third pipeline, and the gas transmitted by the first blower can be heated by the electric heating device and sent into the materia...

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Abstract

The invention discloses a heat exchange system constant pressure variable air volume device and a method thereof, and belongs to the field of plastic drying. The heat exchange system constant pressure variable air volume device comprises a plastic drying hopper, a plate heat exchanger, an electric heating device, an air sucking pump, a draught fan, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline and a pressure adjusting mechanism. The first pipeline is provided with a first electromagnetic valve. The second pipeline is provided with a second electromagnetic valve. According to the heat exchange system constant pressure variable air volume device and the method thereof, the pressure adjusting mechanism is added, so that the pressure of the hot air end and the pressure of the cold air end of the plate heat exchanger are measured and are guaranteed to be equal through mutual cooperation between the components, constant pressure variable air volume adjusting is achieved, and the problems existing in existing devices are effectively solved; an air channel is adjusted in real time, thus, the pressure in a heat exchange system is controlled, the effect that the internal pressure and the external pressure of the plate heat exchanger are consistent is ensured, and the service life of the equipment is prolonged; and the heat exchange system constant pressure variable air volume device is reasonable in design and ingenious in conception and has good application prospects.

Description

technical field [0001] The invention relates to the field of chemical industry, especially the field of plastic drying, and specifically relates to an isobaric variable air volume device for a heat exchange system and a method thereof. Background technique [0002] In the field of transformation of plastic granules, a very important treatment is the drying process of the granules before their transformation or polymerization, for example before they are shaped into shaped objects. During the transformation or polymerization process, the particles will melt at a higher temperature, and if there is moisture in the particles, the moisture will become a component in the polymer molecular chain, resulting in the breakage of the polymer chain and the generation of air bubbles, pores and / or surface defects, thereby affecting the performance of plastic products. Contents of the invention [0003] After research, the inventor found that the tail gas of the existing plastic dryin...

Claims

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Application Information

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IPC IPC(8): B29B13/06
Inventor 陈波王胜生范红军张时东雷卫
Owner SICHUAN HUINENG ENERGY INVESTMENT MANAGEMENT