Analysis and Calculation of Vibration of U-Tube Heat Exchanger and Its Countermeasures

U型 管 换 热器振动的分析计算及处理对策

Failure analysis of tube-to-tubesheet joints of dual-shell U-tube heat exchanger

双壳程 U型 管 换 热 器管子与管板连接失效分析

Three kinds of simple heat transfer models of ground source heat pump systems equipped with vertical U-tube ground heat exchanger are introduced . G-function and conduction shape factors are employed to calculate the sidewall temperature of tube-well .

本文介绍了土壤源 热泵垂直 埋 管 式 换热器的三种不同简易计算模型，引入不同的导热形状因子，并利用G函数来确定管井井壁的温度。

Use of New-Type U-Tube Heat Exchanger in Crude Methanol System

新型 U 形 管 换 热 器在粗甲醇系统中的应用

Failure analysis of U-tube in high pressure heat exchanger

高压 换 热 器 U 形 管 管口开裂分析

Based on analytic theory the temperature distributing analytic expression in the ground around the U-tube heat exchanger was obtained .

基于解析解理论，得出 垂直 埋 管周围土壤温度场分布解析表达式。

Then it can provide reference for U-tube heat exchanger with self-tight design . Furthermore the paper still compared the overall modeling and local modeling of tube sheet stress analysis .

为自紧密封U型 管 式 换 热 器的结构设计提供参考。本文对自紧密封 U型 管 式 换 热 器整体建模与局部建模的管板受力进行对比。

Discussion on vertical U-tube heat exchanger design for ground-source heat pump systems

地源热泵系统竖直 U 形 管 换 热 器设计中的问题探讨

Design of tubesheet in high pressure U-tube type heat exchanger

高压 U 形 管 换 热 器管板设计

In this paper a full-scale 3D numerical model of a single U-tube ground heat exchanger was built . The effectiveness of the model was verified by comparing the computed results with the field test data .

本文建立了单 U型 管地下 换 热 器的真实尺寸三维数值模型，通过模拟结果同试验实测数据的对比，验证了模型的正确性。

Analysis of the Borehole Resistance in the Vertical U-tube Heat Exchanger

垂直 U型 管 式 埋地 换 热 器热阻分析

This paper analyzed the design methods of the vertical U-tube ground heat exchanger ( VGHE ) based on the line-source model ( LSM ) and cylindrical-source model ( CSM ) .

介绍了基于线热源理论和柱 热源理论的竖直 U形地埋 管 换 热器的设计计算方法。

In the present work a rarely observed failure mode of dual-shell U-tube heat exchanger was studied and the preliminary reason of the failure was discussed .

介绍了双壳程 U型 管 换 热 器的一种极为少见的失效形式，并对这种失效的原因进行了初步的分析。

Research for Craft Equipment of Large-scale U-tube Heat Exchanger

大型 U 形 管 热 交换 设备工艺装备研制

A transient heat transfer model for the simulation of a single vertical U-tube heat exchanger is built and the controlled equation is dispersed in terms of Finite Volume Method . The temperatures of soil and fluid in U-tube are simulated and simulation results and experiment datum are consistent .

针对垂直 U型 埋 管 换 热 器建立瞬态传热模型，采用控制容积法对方程进行离散， 对换 热 器周围土壤温度场和管内流体温度进行数值模拟，模拟结果与实验数据吻合的较好。

Numerical Simulation and Analysis of U-tube Ground Heat Exchanger Used in Ground Source Heat Pump ; Numerical Simulation of Vertical U-tube Underground Heat Exchanger for GSHP

地源热泵U型 管地下换热器的数值模拟与分析土壤源热泵垂直 U型 地埋管 换热的数值模拟

Research on Mechanical Behavior of Self-Tight Seal Tubesheet for U-Tube Heat Exchanger

自紧密封 U型 管 式 换 热器管板的力学行为研究

The design and research of the paper has certain reference value to shell-and-tube heat exchanger especially U-tube heat exchanger engineering design .

本文的设计与研究对于管壳式换热器尤其是 U 形 管 式 换 热 器的工程设计具有一定的参考价值。

It also represents the material selection fabrication installation and detection of U-tube heat exchanger .

对 U 形 管 式 换 热 器选材、制造、安装和检验等方面进行了阐述；

The Study on the Long-Term Cooling of the Vertical U-Tube Ground Heat Exchanger

垂直 U型土壤 换 热 器长期供冷问题的研究

At the same time there is nobody to do the finite element analysis of U-tube heat exchanger with self-tight seal .

同时，自紧密封 U型 管 式 换 热 器的整体有限元分析还没有人开展。

A description is made of the structural characteristics of the new-type U-tube heat exchanger and an introduction is given to its use in the crude methanol system .

阐述了新型 U 形 管 换 热 器的结构特点，介绍了该种 换 热 器在粗甲醇系统中的应用情况。

Through stress analysis of tubesheet we can find out the most dangerous operating case and position and then it can provide reference for tubesheet design . Furthermore the paper still studies the self-tight seal tubesheet of U-tube heat exchanger deeply .

通过对管板的应力分析，找出最危险工况及危险部位，为管板的结构设计提供参考。除了上述工作，本文还深入研究了自紧密封 U型 管 式 换 热 器管板的结构特点。

The analysis of cracking failure for U-tube in high pressure heat exchanger was made by means of Chemical composition analysis mechanical properties tests microstructure test SEM analysis of fracture and energy spectrum analysis of corrosion product .

对高压 换 热器 U型 管 泄漏进行了化学成分分析、力学性能测试、显微组织和断口的宏微观分析。

An investigation on vibration frequency of U-tube heat exchanger

U 形 管 热 交换器振动频率的研究

Base on several common U-tube heat transfer models of ground source heat pump this paper proposes a transient heat transfer model for single U-tube vertical heat exchanger .

介绍了几种常见土壤源热泵U型 埋 管 换 热 器传热模型，建立了单 U型 垂直 埋 管 换 热器的非稳态传热模型。

Analysis on Leakage Reason of Stainless Steel U-tube Used as Heat Exchanger

热 交换器用不锈钢 U型 管泄漏原因分析

Comparison of Vertical U-Tube Ground Heat Exchanger Thermal Resistance Calculation Methods

竖直 U 形 地埋 管 换 热 器传热热阻计算方法比较

Vertical heat exchanger is mainly divided into single U-tube heat exchanger and double U-tube heat exchanger .

垂直 U型 管换热器主要分为两种：单 U型 管 换 热 器和双U型管换热器。

GSHP with the adoption of the vertical U-tube heat exchanger has become increasingly popular because of such outstanding advantages as fewer area requirement fewer limits more steady and effective performance etc.

采用 U型垂直 埋 管 换 热 器的土壤源热泵以其占地面积小、适用范围广、性能稳定、 换 热效率高等优势得到了越来越广泛的关注和应用。