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Mechanical vapor recompression main heat exchanger outlet arrangement method

A main heat exchanger, mechanical steam technology, applied in the direction of instruments, computer-aided design, special data processing applications, etc., to achieve the effect of reducing the loss of heat energy

Pending Publication Date: 2017-06-06
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Disadvantages of the current technology: the current design of the main heat exchanger is mostly one inlet and one condensing outlet, and the outlet position is determined based on experience

Method used

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  • Mechanical vapor recompression main heat exchanger outlet arrangement method
  • Mechanical vapor recompression main heat exchanger outlet arrangement method
  • Mechanical vapor recompression main heat exchanger outlet arrangement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] Step 1: Draw a high-precision and complete three-dimensional model of the main heat exchanger in ANSYS WORKBENCH. The drawn solid model of the main heat exchanger is as follows figure 2 shown;

[0041] Step 2: Import the 3D solid model of the helicopter reducer gearbox drawn by ANSYS WORKBENCH into FLUENT, set the fluid medium as water vapor through menu operations, and divide the finite element mesh, and divide the mesh to obtain the finite element model such as image 3 As shown, when the number of outlets is 2, the finite element model is as Figure 4 As shown, the steam inlet pressure is a relative pressure of 0.06MPa, and the outlet pressure is 1 atmosphere;

[0042] Step 3: When the number of outlets of the main heat exchanger is constant, the flow velocity analysis is carried out at different sections. Such as Figure 5 Shown is the cross-sectional flow velocity distribution cloud map at the inlet position, as shown in Figure 6 Shown is the cloud diagram of...

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Abstract

The invention discloses a mechanical vapor recompression main heat exchanger outlet arrangement method which includes the steps: firstly, building a three-dimensional model of a main heat exchanger; secondly, building a finite element model of the main heat exchanger; thirdly, performing flow rate analysis for fluid media of the main heat exchanger; fourthly, determining the number and the position of outlets of the main heat exchanger. According to the method, the number and the position of the outlets of the main heat exchanger can be rapidly determined, the heat exchange efficiency of the mechanical vapor recompression main heat exchanger is sufficiently improved, and energy-saving effects are improved.

Description

technical field [0001] The invention relates to a method for arranging the outlet of a mechanical vapor recompression main heat exchanger, belonging to the technical field of sewage physical treatment. Background technique [0002] Mechanical vapor recompression technology (Mechanical Vapor Recompression, referred to as MVR), also known as heat pump technology, this technology reduces the demand for external energy in the evaporation and concentration process by reusing the condensation latent heat of the secondary steam generated in the evaporation and concentration process. energy saving technology. At present, this technology has been widely used in chemical industry (papermaking, recycling sulfur dioxide to produce sulfur ammonia), beverage industry, salt industry, food industry (starch, dairy products, sugar), environmental protection technology (industrial wastewater treatment), seawater desalination, garbage filling Landfill leachate treatment, etc. MVR technology h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23G06F30/17G06F2119/08
Inventor 苏勋文王东林张建忠
Owner BEIJING FORESTRY UNIVERSITY