小风量风机性能测试台

A small amount of fan performance test bench

采用吸风式和风室的方法来设计和测量，满足标准GB/T1236-2000(等效ISO5801)的要求。

Design and measurement of the air suction and air chamber method to meet the requirements of standard GB/T1236-2000 (equivalent ISO5801).

风机性能试验台设备组成:主要部件：压力传感器、横河变送器两个、温湿度变送器、噪声计、进口PLC、风机变频器、直流稳定电源、辅助风机等

The main components of the wind turbine performance test rig are: pressure sensor, Henghe transmitter two, temperature and humidity transducer, noise meter, imported PLC, fan inverter, DC stabilized power supply, auxiliary fan, etc.

技术参数：1.被测风机风量范围：350~100000m3/h

Technical parameters: 1 wind machine air volume range: 350~100000m3/h

2.重复性测量精度：±2%

2 repeatability measurement accuracy: 2%

3.使用环境：

3 use environment:

温度：20±15℃

Temperature: 20 + 15

湿度：65±20%

Humidity: 65 + 20%

4.客户风机最大尺寸约：1000mm（根据客户需要制定）

4 the maximum size of the client is about 1000mm (according to customer needs).

5.风压：-500~3000pa

5 wind pressure: -500~3000pa

6.风速：0~10000R/min

6 wind speed: 0~10000R/min

7.被测风机电源电压控制方式：自动调节

7 wind power machine voltage control mode: automatic adjustment

8.被测风机转速控制方式：可选择控制电压调节

8 by measuring fan speed control mode: optional control voltage regulator

9.控制参数：风洞静压、喷嘴前后压差、风洞温湿度、被测风机电压等

9 control parameters: static pressure, nozzle pressure difference before and after the wind tunnel, wind tunnel, wind temperature and humidity are machine voltage etc.

10.测量参数：风洞静压、喷嘴压差、被测风机电压、被测风机电流、被测风机转速、风洞温度、风洞湿度、大气压力等

10. Of the measurement parameters: wind tunnel pressure, nozzle pressure difference and voltage of wind machine, wind machine current or wind speed, wind temperature, wind, humidity, atmospheric pressure

测量风机的风量、风压、功率、效率、转速等性能参数，再通过风

The performance parameters, such as the air quantity, air pressure, wind pressure, power, efficiency and speed of the wind turbine are measured.

量与其他几个参数之间的关系得出的曲线称为风机特性曲线或风机性能曲线。

The curves of the relationship between the amount and the other parameters are derived from the wind turbine characteristic curve or the wind turbine performance curve.

实测的风机参数数据，并不一定是完美的，一般的风机性能曲线都是通过实测数据根据一定的算法拟合而来产生的一条拟合曲线

The measured wind turbine parameters data is not necessarily perfect, the general wind turbine performance curve is a fitting curve generated by fitting the measured data according to a certain algorithm.

本试验台由4个主要部分组成：

This test rig is made up of 4 main parts:

1． 液压系统：循环泵、脉冲发生器。

1 hydraulic system: circulating pump, pulse generator.

2． 试验柜：主要用于安装待试验的热交换器，调压及系统压力指示。

2 test cabinet: mainly for the installation of the test of the heat exchanger, pressure and system pressure.

3． 温度控制系统（箱体温度控制系统，流质温度控制系统）

3 temperature control system (box temperature control system, liquid temperature control system)

4． 电器控制柜及计算机测试系统：启动按钮和仪表均安装在操纵台上，便于集中控制和监测情况，计算机系统可以采集试验压力波形、试验次数、脉冲频率、介质温度等参数且具备报表打印功能，并有故障通告功能。

4 electric control cabinet and computer test system: the start button and the instrument are installed on the operating table. It is convenient for centralized control and monitoring.

下面就这几个方面实现的功能进行介绍

The functions described below are introduced in this paper.

一、液压脉冲系统

Hydraulic impulse system

系统框图：

System block diagram:

因为我们知道，液压系统是实现压力脉冲模拟以及压力控制的基础，主要设计难点是压力的控制，压力上升的速率，以及测量件故障损坏告知和自动处理。

Because we know that the hydraulic system is the basis of the pressure pulse simulation and pressure control, the main design difficulty is the pressure control, the pressure rise rate, as well as the measurement of the fault damage to inform and automatic processing.

在设计压力控制中，我们采用变排量的液压泵以及电子溢流控制阀等部件组成的回路进行高压的控制，低压由电子泄流阀等组成的低压控制回路。但是压力上升的速度是由于压力泵的排量决定的。（我们知道，压力升高，测量件将会变形，容积会增进。增进的压力和容积有个相对应的关系）因此，在最快速的脉冲试验中，在多短的时间中，注入测试件的液体容积是关键，这也是我们计算泵排量的基础。

In the design of pressure control, we use the variable displacement hydraulic pump and electronic overflow control valve and other components of the circuit to control the high voltage, low voltage control circuit composed of electronic discharge valve and so on. But the pressure rise is due to the pressure of the pump's displacement. (we know that the pressure rise, the measurement will be deformed, the volume will increase. Therefore, in the most rapid pulse test, in a number of short time, the volume of the injection of the test piece is the key, which is the basis for the calculation of the displacement of the pump.

二．箱体设计

Two. Box design

我们知道，一个系统是有很多小系统组成的，箱体是由液压系统和热交换系统，控制仪表等组成的一个有机体，在设计中我们首先根据设计要求必须双开门，就是正面和反面都可以开门。在门都安装闭合检测开关，进行测量检测，以满足试验安全性。

We know that a system is composed of many small system. The box body is by the hydraulic system and heat exchange system and control instrument consisting of an organism, in the design we first according to the design requirements must be double door is positive and negative could open the door. The doors are installed with a closed switch, which is measured to meet the safety of the test.

整个箱体外围是个空气循环系统，到测试室的空气，进行充分的热交换，保证箱体的控制温度。当然，箱体间的隔热处理也是十分重要的。

The whole cabinet is a peripheral air circulation system, to the test chamber of the air, the full heat exchange, to ensure the control of the box temperature. Of course, heat insulation between the box is also very important.

箱体尺寸：1500*1000*1000。

Box size: 1500*1000*1000.

箱体材料：内部采用不锈钢（SUS），外部保温处理。并安装有2个观测口（250*300），2开门。

Box material: stainless steel (SUS), external heat preservation. And install 2 observation port (250*300), 2 open the door.

三、箱体温度控制和液压系统控制。

Three, box temperature control and hydraulic system control.

箱体的温度控制，我们在上面进行了说明。按标准由于液压部分的温度达到140度，加热系统必须在有压力的情况下进行，液压部分的加热，在压力泵输出后端进行加热。整个系统采用智能PID控制，保证温度的控制达到要求精度。

Temperature control of the box body, we are described above. According to the standard due to the hydraulic part of the temperature reached 140 degrees, the heating system must be in the case of pressure, the hydraulic part of the heating, the output of the pressure pump heating. The whole system adopts intelligent PID control, and the control of temperature can reach the required precision.

四、控制系统选择

Four, control system selection

整个控制系统，我们采用工业控制计算机＋二次控制仪表系统＋传感器开关控制模式，并对所有的开关量进行闭合PLC监控，并采用逻辑关系，保证系统的安全和可靠，能够进行故障记录，自动系统锁定逻辑，保证无人值班的试验安全。主要测量仪表设备采用进口著名厂。并有网络操作功能。（可以记录压力曲线，温度曲线，脉冲次数）

The whole control system, we use the industrial control computer + two control instrument system + sensor switch control mode, and all the switches are closed PLC monitoring, and the use of logical relations, to ensure the safety and reliability of the system, can carry out fault records, automatic system lock logic, to ensure no one on duty test safety. The main measuring instruments and equipment imported famous factory. And have network operation function. (you can record the pressure curve, the temperature curve, the number of pulses).

计算机：Pentium-4 CPU : 2.8 GHz HDD : 80 GB SONY DVD ROM, 512MB RAM , 15” 显示器

Computer: CPU Pentium-4: 2.8 HDD GHz: 80 SONY DVD ROM 512MB, RAM GB, 15.

四、适用范围：

Four, applicable scope:

本试验设备主要适用于对各种管道及其总成进行性能试验，包括：

This test equipment is mainly used in the performance test of all kinds of pipes and their assemblies, including:

对管道总成及其组件高压冲击（脉冲压力）试验，以考核管道及其组件的使用寿命。任何测试件故障不会影响其他试验件的试验，并可以无人值班。

Test of the high pressure impulse (pulse pressure) of the pipeline assembly and its components, in order to examine the service life of the pipeline and its components. Any failure of the test piece will not affect the test of the other test pieces, and no one will be on duty.