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Anti blocking type array type air flow measuring device

ZW-FDS series Anti blocking type array type air flow measuring device The gas flow in the pipeline, …

Description：

、產(chǎn)品概述：">Productoverview:

ZW-FDS series Anti blocking type array type air flow measuring device 。">The gas flow in the pipeline, the ideal state is a straight section of pipe wall is smooth and has long, otherwise the gas flow in the pipeline is not uniform, there are turbulence and swirl, affect the measurement accuracy. ，得到風(fēng)道內(nèi)的平均風(fēng)速

。">But the wind power plant boiler flue is almost impossible to have such ideal conditions, the solution is to use the grid method of arranging a plurality of measuring points in the air duct, obtained the average wind velocity in the duct.

Two, work principle:

，根據(jù)ISO3966:1997《封閉管道中流體流量的測量/采用皮托靜壓管的速度-面積法》******標(biāo)準(zhǔn)設(shè)計(jì)制造的

。">ZW-FDS series of <strong> anti blocking type array type air flow measurement device</strong> is based on the S type pitot tube measurement principle, according to ISO3966:1997 "measurement of fluid flow in closed conduits using Pitot tube velocity - area methods of" international standards of design and manufacture. ，當(dāng)管道內(nèi)有氣流流動(dòng)時(shí)

，迎風(fēng)面受氣流沖擊，在此處氣流的動(dòng)能轉(zhuǎn)換成壓力能

，因而迎風(fēng)面管內(nèi)壓力較高

，其壓力稱為“全壓”，背風(fēng)側(cè)由于不受氣流沖擊

，其管內(nèi)的壓力為風(fēng)管內(nèi)的靜壓力

，其壓力稱為“靜壓”，全壓和靜壓之差稱為差壓

，其大小與管道內(nèi)風(fēng)速有關(guān)

，風(fēng)速越大，差壓越大

；風(fēng)速小

，差壓也小，風(fēng)速與差壓的關(guān)系符合伯努利方程：">Measuring device installed in the pipeline, the probe is inserted into the pipe, when the pipe flow, the windward side by the impact of airflow, converted into kinetic energy in the air pressure here, so the windward side tube of high pressure, the pressure is called "pressure", because the leeward side air flow impact pressure the tube is the static pressure of the wind pipe, the pressure is called "static pressure, total pressure and static pressure difference is called differential pressure, wind speed and the size of the pipe, the greater the wind speed, the greater the pressure; the wind speed is small, the differential pressure is small, the relationship between velocity and pressure accords with the Bernoulli equation:

，單位：m/s；">Type: V - speed unit: m/s;

；">K flow coefficient measuring device;

，單位：Pa；">The P differential pressure, unit: Pa;

，單位：kg/m3

。">The gas density, unit: kg/m3.

，每個(gè)傳感器是以測量整流管以及同軸安裝在測量整流管內(nèi)的節(jié)流件及相應(yīng)的取壓口組成

，整套裝置相當(dāng)于組成了測速陣列進(jìn)行風(fēng)量測量

。">Anti blocking array type air flow measurement device is composed of one or more measuring probes, each probe includes a plurality of gas flow sensor with anti blocking function, each sensor is to measure the throttle and rectifying tube coaxially mounted on the measuring tube rectifier and the corresponding pressure outlet. The whole device for the measurement of air flow is to speed the array. 、靜壓與靜壓并聯(lián)起來

，就可以準(zhǔn)確測量風(fēng)道截面各測點(diǎn)的平均流速。">When the air duct is inserted into the multi branch measuring probe, the probe output total pressure and total pressure, static pressure and static pressure in parallel, can the average velocity of each measuring point accurate measurement of air duct section. 、每支測量探頭盡量多地配置流速傳感器

，就可以避免風(fēng)道內(nèi)由于旋流、紊流造成的流場不均勻?qū)y量帶來的影響

，減少測量誤差

。">This means that if as much as possible in the air duct arranged in the measuring probe, each measuring probe as much velocity sensor configuration, you can avoid the air duct due to the influence of flow field, turbulence caused by the asymmetry of the measurement, reduce the measurement error.

Three, application:

、二次風(fēng)噴口風(fēng)量

、磨煤機(jī)入口一次風(fēng)量（水平風(fēng)道）、冷一次風(fēng)總風(fēng)量

、熱一次風(fēng)總風(fēng)量等測量場合

。">ZW-FDS series of <strong> anti blocking type array type air flow measuring device</strong> is mainly used in two times, two times the total air volume air volume, air jet pulverizer inlet primary air (horizontal duct), a cold wind, the total air volume heat wind air flow measurement occasion.

Three, main features:

、取壓口采用特殊設(shè)計(jì)

，具有高取壓效能；">1, using a specially designed pressure port, with high pressure performance;

、特別設(shè)計(jì)的防堵元件借助測量介質(zhì)的動(dòng)能進(jìn)行取壓管道的實(shí)時(shí)清灰

；適用于含塵量大、雷諾數(shù)低

、介質(zhì)臟物的工況

。">The anti blocking element by measuring the kinetic energy of medium pressure pipeline real-time cleaning 2, specially designed; suitable for containing a large quantity of dust, dirt, medium low Reynolds number condition. ，******不需要外加任何壓縮氣體進(jìn)行吹掃

，無論氣體含塵濃度多大，******可以做到長期運(yùn)行免維護(hù)

；">Completely solve the blocking problem of signal dust airflow air flow measurement device, air flow measurement device itself has self cleaning anti blocking function using the kinetic energy of fluid, absolutely don't need any additional compressed gas purge gas containing dust, no matter how much concentration, can do long-term maintenance free operation;

、采用等截面多點(diǎn)矩陣測量探頭，保證在短直管段

、流場紊流情況下的高精度流量測量

；">3, adopting uniform multi point matrix measurement probe, ensure the accuracy of flow measurement in a short straight pipe, turbulent situation;

，測量精度高

；">4, fluid resistance and sharp edge wear small, high precision measurement;

；">5, the discharge coefficient of stable, reliable performance;

、安裝時(shí)所要求直管段很短,上游要求0至3D,下游要求0至1D；不需要在上游安裝流動(dòng)調(diào)整器

；直管段縮短70%（前直管段<3D,后直管段<1D）

；">6, the installation required a very short straight, 0 to 3D upstream, downstream demand of 0 to 1D; do not need to install the flow regulator in upstream; shorten the 70% straight section (the first straight section of <3D, after the straight section <1D);

，低壓損

；">7, pressure effect is good, low loss;

。">8, specially designed so that the pressure loss is negligible. ，對于整個(gè)大風(fēng)道來說，組合風(fēng)量測量裝置的擋風(fēng)面積幾乎可以忽略不計(jì)

，因此

，其對整個(gè)風(fēng)道流體的壓力損失幾乎沒有，節(jié)能效果十分顯著

，且安裝方便

，特別適用于低靜壓流體的流量測量的使用場合；">Inserted type layout for the whole wind road, combined air flow measurement device in wind area is almost negligible, therefore, the loss of the duct fluid pressure almost no energy saving effect is very significant, and has the advantages of convenient installation, flow measurement occasions is particularly suitable for low pressure fluid;

、冷態(tài)標(biāo)定和熱態(tài)溫度壓力補(bǔ)償技術(shù)有效提高了測量精度

。">The calibration of 9, cold and hot temperature and pressure compensation technology can effectively improve the measurement accuracy.

Four, technical parameters:

、管道尺寸：100≤D≤ 9000 mm

；">1, pipe size: 100 = D = 9000, mm;

；">2, nominal pressure: PN = 4Mpa;

、工作溫度：-50℃≤t≤8000℃；">3, working temperature: -50 degrees C = t = 8000;

、量程比：1：10

，1：15；">4, range: 1:10, 1:15;

、精度等級(jí)：0.5級(jí)

，1級(jí)，1.5級(jí)

；">5, precision grade: grade 0.5, grade 1, grade 1.5;

、重復(fù)性優(yōu)于±0.1%；">6, the repeatability is better than 0.1%;

、參照標(biāo)準(zhǔn)：GB/T2624-2006、JJG640-94及流量測量節(jié)流裝置設(shè)計(jì)手冊

；">7, standard: GB/T2624-2006, JJG640-94 and flow measurement throttling device design manual;

、連接方式：法蘭連接

、焊接、螺紋連接

。">8, connection: flanged, welded, threaded connection.

、選型編碼：">Seven, the selection of encoding:

Specifications						Explain
ZW-FDS	Zhongwei control					Anti blocking type array type air flow measuring device
Layout	I					Single point measurement arrangement
	II					Two measuring arrangement
	III					Three points measurement
Diameter measurement DN		50-				DN50
		65-				DN65
		80-				DN80
		100-				DN100
		125-				DN125
		150-				DN150
		200-				DN200
		225-				DN225
		250-				DN250
		300-				DN300
		350-				DN350
		400-				DN400
		450-				DN450
		500-				DN500
		600-				DN600
		800-				DN800
		900-				DN900
		1000-				DN1000
Working pressure PN			One			0.6 MPa
			Two			1.6 MPa
			Three			2.5 MPa
			Four			4 MPa
			Five			6.4 MPa
			Six			10 MPa
working temperature DEG				One		120 degrees below
				Two		220 degrees below
				Three		380 degrees below
Pipe material					C	carbon steel
					S	Stainless steel
					Zero	Other materials

Types of marking method:

ZW-FDS- - -PN - C/S/O - -DN II anti blocking air flow measurement device sensor.

；- FDS——防堵風(fēng)量測量裝置傳感器

。">ZW - - FDS - basic model; anti blocking air flow measurement device sensor.

II is a two-point arrangement.

，為公稱通徑1000㎜

。">DN - - nominal diameter (mm) such as DN1000, nominal diameter 1000 mm.

。">PN - - nominal pressure (Mpa) such as PN0.1, for the nominal pressure of 0.1 Mpa.

，S為不銹鋼，O其它材質(zhì)

。">C/S/O pipe material: C steel, S stainless steel, O and other materials.

、設(shè)計(jì)選用及訂貨須知：">Eight, design selection and ordering information:

；">1, the measured medium;

、常用、大小流量（m3/h）

；">2 commonly used, and the flow rate (m3/h);

、工作壓力（Mpa）、工作溫度（℃）

、Z高壓力（Mpa）

、Z高溫度（℃）；">3, working pressure (Mpa), temperature (c), Z (Mpa), Z high pressure high temperature (C);

、介質(zhì)密度

、粘度；">4, medium density and viscosity;

、管道材質(zhì)

、內(nèi)徑、外徑

；">5, pipe material, diameter, diameter;

、現(xiàn)場管道敷設(shè)情況和局部阻力件形式。">6, field piping and local resistance piece.

、您需要中偉測控的顯示儀表配套時(shí)

，請參閱相應(yīng)的說明書，選用合適的型號(hào)或由我公司技術(shù)人員根據(jù)您提供的資料替您設(shè)計(jì)選型。">7, you need to display instrument Zhongwei control, please refer to the corresponding instructions, the appropriate choice of models or provided by the technical personnel of our company according to your information for your selection.

、如有特殊要示

，請與我公司銷售部聯(lián)系。">8, if there are special to show, please contact our sales department.

Customer service service commitment:

、我公司所售系列流量計(jì)系列產(chǎn)品在十二個(gè)月以內(nèi)出現(xiàn)質(zhì)量問題的

，負(fù)責(zé)免費(fèi)維修。">1, our series of flowmeter series product quality problems within 12 months, responsible for free maintenance.

、質(zhì)保期內(nèi)如我公司產(chǎn)品出現(xiàn)任何質(zhì)量問題

，我公司負(fù)責(zé)免費(fèi)維修或更換。">2, the warranty period if the products of our company have any quality problems, our company is responsible for free repair or replacement.

、質(zhì)保期內(nèi)如用戶使用不當(dāng)

，造成產(chǎn)品損壞，我公司負(fù)責(zé)維修

，收取損壞部件成本費(fèi)

。">3, the warranty period if the user use undeserved, cause damage to the product, our company is responsible for the maintenance, collect the damaged parts cost.

，我公司負(fù)責(zé)維修

，收取損壞部件成本費(fèi)。">4, the warranty period after the product quality problems, our company is responsible for the maintenance, collect the damaged parts cost.

、如用戶需我公司現(xiàn)場服務(wù)

，對省內(nèi)用戶我公司服務(wù)人員12小時(shí)內(nèi)到達(dá)現(xiàn)場，省外用戶48小時(shí)內(nèi)到達(dá)現(xiàn)場

。">5, if the user needs to our service, our company in the province of the user service personnel arrived at the scene within 12 hours, arrived at the scene 48 hours outside users.

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