SVPI型 級閃蒸器（Super VPI）

一．應用范圍

YunTek 級閃蒸器適用于帶壓力液體樣品進入分析儀器進行分析的前端氣化以及樣品傳輸。其設計與性能與國內(nèi)同種產(chǎn)品相比有一定優(yōu)勢。

YunTek Super VPI is suitable for front-end gasification and sample transfer with pressure liquid samples entering the analysis instrument for analysis. Its design and performance have certain advantages compared with the same kind of domestic products.

本產(chǎn)品適用于下述分析前的樣品處理：

This product is suitable for sample processing prior to the following analysis：

1. 各類工業(yè)用烯烴中微量一氧化碳、二氧化碳的分析，配合氣相色譜儀使用。Analysis of trace amounts of carbon monoxide and carbon dioxide in various kinds of industrial olefins, used in conjunction with gas chromatography.

2. 液態(tài)烴組成分析，配合氣相色譜儀使用。

Analysis of the composition of liquid hydrocarbons, used in conjunction with gas chromatography.

3. 其他組分分析，如烴類中硫化物分析。

Other component analyses, such as sulphide analysis in hydrocarbons.

二．儀器特點

1.本儀器相比一般的液體進樣閥更加方便，而且分析結(jié)果更加。

This instrument is more convenient than the general liquid sample valve and the analysis results are more accurate.

2.所有液樣品均在恒壓環(huán)境中被汽化和傳輸，克服了液態(tài)樣品在氣化過程中，由于其密度變化而導致的錯誤，確保了分析譜圖出峰良好。

All liquid samples are vaporized and transmitted in a constant pressure environment, which overcomes the errors caused by the change of density in the liquid sample during the gasification process, and ensures that the analysis spectrum peaks well.

3.全程傳輸管線具有可調(diào)伴熱功能，保證樣品不會冷凝。

The whole transmission pipeline has adjustable thermal function to ensure that the sample does not condense.

4.可以實現(xiàn)液體和氣體樣品的進樣

Sampling of liquid and gas samples can be achieved

5.高樣品通量

High sample flux

6.系統(tǒng)自帶吹掃功能，減少交叉污染

The system has its own cleaning function to reduce cross-contamination

三．產(chǎn)品優(yōu)勢

1.全程惰性化管路及惰性化處理過濾器，杜絕腐蝕、吸附。

The whole process of inert pipeline and inert treatment filter, to prevent corrosion, adsorption.

2.可用于硫化物及氧化物的痕量物質(zhì)檢測。

Trace substances that can be used for the detection of sulfides and oxides.

3.具備壓力控制功能，使每次進樣壓力一致，保證分析效果。

Has the pressure accurate control function, makes each sample pressure consistent, guarantees the analysis effect.

4.設計帶有用戶可調(diào)式加熱器兩個，分別對閃蒸溫度 及進樣管路進行溫度控制，實現(xiàn)全程伴熱，防止樣品氣化后二次冷凝。

Two user-adjustable heaters are designed to control the temperature of theflash steam and the feeding pipe respectively, so as to achieve the full range of heat and prevent the second condensation after the sample is vaporized.

5.經(jīng)閃蒸后樣品，進行重復進樣分析，分析結(jié)果相對標準偏差大控制在 0.5%，優(yōu)于同類國內(nèi)產(chǎn)品。

After the flash steam sample, repeated sample analysis, the analysis results relative to the standard deviation of the maximum control at 0.5 %, superior to the same domestic products.

四．技術(shù)參數(shù)

項目

參數(shù)

產(chǎn)品貨號Product number

YXY01702

高進樣壓力 Maximum liquid pressure（已修改）

閃蒸器可根據(jù)特殊要求進行定制，用于承受高約 70 barg 的液體進樣壓力

高氣化溫度 Maximum gasification temperature

200℃

溫控精度 Temperature control accuracy

±0.1℃

標準液體進樣壓力 Standard liquid injection pressure

40 barg

儀器 RSD% Instrument RSD %

≤0.5%

外觀尺寸 Dimensions

W x D x H= 254x500x200mm

重量 weight

11 公斤

供電power supply

220V / 50Hz

控制管路 Control Pipeline

全程鈍化管路，杜絕吸附、腐蝕，全程伴熱管路，杜絕二次冷凝

五．應用分析

石化客戶樣品組分以液態(tài)碳四為主，理論上液態(tài)樣品熱水浴氣化進樣存在揮發(fā)不完全的問題，揮發(fā)性組分的重現(xiàn)性較差（重烴組分重復性很差，甚至大于 50%）。實際數(shù)據(jù)也驗證了，客戶直接氣態(tài)進樣數(shù)據(jù)重復性很差，即使用國產(chǎn)閃蒸器，由于使用了過大的傳輸管路，導致樣品不能夠被完全氣化，進而會導致樣品分析結(jié)果的不完整以及其它錯誤，亦存在重烴組分揮發(fā)不充分或二次冷凝的現(xiàn)象。通過閃蒸進樣的硫化物分析結(jié)果譜圖中，羰基硫組分峰面積相對標準偏差低于 0.5%，保證了分析結(jié)果的重復性。證明了 YunTek 閃蒸器對硫化物組分的進果。

Petrochemical customers 'sample components are dominated by liquid carbon. Theoretically, there is a problem of incomplete volatilisation in the gaseous sample of hot water bath in liquid samples, and the recurrence of volatile components is poor(the repeatability of heavy hydrocarbon components is poor, even greater than 50 %). The actual data also verified that the customer's direct gaseous sample data is poorly repeatable, that is, the use of domestic brand flash evaporators. Due to the use of excessive transmission lines, the sample can not be completely gasified, which in turn will lead to incomplete sample analysis results and other errors., There is also the phenomenon of insufficient volatilisation or secondary condensation of heavy hydrocarbon components. The peak area of carbonyl sulfur component is less than 0.5 % of the standard difference in the spectrum of sulphide analysis by Flash steaming sample, which ensures the repeatability of the analysis results. The results of YunTek flash evaporator on sulphide composition were proved.

六．系統(tǒng)需求

1.分析儀器需安裝氣體進樣閥

A gas sample valve on the analyzer interface.

2.分析儀器需具備外部連接端口

The analytical instrument needs an external connection port.