TWI337242B - Flue gas sampling unit of flue gas system and the method for the same - Google Patents
Flue gas sampling unit of flue gas system and the method for the same Download PDFInfo
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- TWI337242B TWI337242B TW096101873A TW96101873A TWI337242B TW I337242 B TWI337242 B TW I337242B TW 096101873 A TW096101873 A TW 096101873A TW 96101873 A TW96101873 A TW 96101873A TW I337242 B TWI337242 B TW I337242B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
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Description
13372421337242
九、發明說明： 【發明所屬之技術領域】 本發明係一種煙氣系統之煙氣取樣單元及其取樣方 法，尤指一種可連續地且均勻地取樣之煙氣系統之煙氣 取樣單元及其取樣方法。 【先前技術】 有效的燃燒可以提高燃燒設備的效率，並且降低燃 料的成本，且在適當的燃燒調整控制下，可進一步地降 低空氣汙染排放，並符合環保標準。一般來說，用來判 斷燃燒爐内燃燒品質之優劣時，常採用燃燒所產生之煙 氣成份做為主要判斷的標的物；請參考第六圖，係顯示 習知煙氣取樣系統之示意圖，傳統取樣煙氣係於煙囪20 出口處進行煙氣2取樣。然而，位於煙囪20處之煙氣2， 屬於系統後段處，其經過了如空氣預熱器、污染防治設 備、具有過濾材32之除塵設備等，可能已經失去原有的 煙氣2組成成份，亦可能受到外在空氣洩露至煙氣2管 道，故往往無法忠實呈現燃燒爐之實際燃燒狀況。除此 之外，一般傳統煙氣2取樣之管路，也大多曝露於大氣 之中，取樣煙氣2中之水蒸氣會凝結成水，而凝結後之 水經常堵住煙氣2取樣之管路，導致煙氣2取樣不均勻 或煙氣2取樣不足等現象。 此外，對於不同的燃料種類，也須對應不同的煙氣2 取樣處理方式。對於燃油或燃氣燃燒爐而言，在煙氣2 取樣時，因其燃料屬性之故，其煙氣2組成成份粒狀汙 染物較低，可與分析儀直接接觸進行分析。但對於使用 5 1337242IX. Description of the Invention: [Technical Field] The present invention relates to a flue gas sampling unit of a flue gas system and a sampling method thereof, and more particularly to a flue gas sampling unit of a flue gas system capable of continuously and uniformly sampling Sampling method. [Prior Art] Effective combustion can increase the efficiency of combustion equipment and reduce the cost of fuel, and under the appropriate combustion adjustment control, can further reduce air pollution emissions and meet environmental standards. Generally speaking, when judging the quality of combustion in a combustion furnace, the smoke component produced by combustion is often used as the main object of judgment; please refer to the sixth figure, which shows a schematic diagram of a conventional smoke sampling system. The traditional sampled flue gas is taken at the exit of the chimney 20 for flue gas 2 sampling. However, the flue gas 2 located at the chimney 20 belongs to the rear section of the system, and after passing through, for example, an air preheater, a pollution prevention device, a dust removal device having a filter material 32, etc., may have lost the original composition of the flue gas 2, It is also possible that the external air leaks into the flue gas 2 pipeline, so it is often impossible to faithfully present the actual combustion condition of the combustion furnace. In addition, the pipes of the traditional flue gas 2 sampling are mostly exposed to the atmosphere, and the water vapor in the sampling flue gas 2 will condense into water, and the water after the condensation often blocks the flue gas. Road, resulting in uneven sampling of flue gas 2 or insufficient sampling of flue gas 2 . In addition, for different fuel types, different flue gas 2 sampling treatment methods are also required. For fuel or gas burners, when the flue gas 2 is sampled, due to its fuel properties, its particulate matter consists of low particulate pollutants, which can be directly contacted with the analyzer for analysis. But for use 5 1337242
燃煤=大型燃燒爐機組而s，由於煤碳成份已經有較多 的灰，存在，再加上燃燒後的副產物中，有一定比例的 飛灰隨之散佈於煙氣中，因此，常須要裝設過濾材32， 用以過;慮煙氣中之飛灰等塵粒，也須要花費人力常常去 更換新的過濾材32以保持之後的分析數據的取得，也基 於過濾材32的特性限制，其煙氣的取樣往往無法連續的 取得，對於須要利用電腦31操作一控制器34來長時間 的記錄煙氣分析結果的系統，常無法得到完整的取樣數 據，而且分析儀的壽命減損與功能失效。 有鑑於此，目前很須要一種煙氣取樣設備與方法， 來降低在煙氣取樣設備上所需投入的人力與過濾耗材的 成本、克服無法連續取樣煙氣的缺點、克服取樣煙氣不 均勻的現象以及真實呈現煙氣取樣的内容並進一步藉由 煙氣取樣分析後，在適當的燃燒調整控制下提高燃燒設 備的效率，並且降低燃料的成本並符合環保標準。 【發明内容】 本發明之目的在於提供一種煙氣系統之煙氣取樣單 元及其取樣方法’來降低傳統煙氣取樣上人力與過濾耗 材的成本’並克服無法連續取樣煙氣的缺點，以及克服 取樣煙氣不均勻與如何真實呈現取樣煙氣等。 本發明之另一目的在於提供避免取樣煙氣中之水蒸 氣會凝結成水而堵住煙氣的問題。 本發明之另一目的在於提供長時間連續煙氣取樣。 6 |337242Coal burning = large-scale combustion furnace unit and s, because the coal carbon component already has more ash, and there is a certain proportion of fly ash in the by-product after combustion, so it is often scattered in the flue gas. It is necessary to install the filter material 32 for the purpose of passing the dust particles such as fly ash in the flue gas, and it is necessary to manually replace the new filter material 32 to maintain the subsequent analysis data, and also based on the characteristics of the filter material 32. Restriction, the sampling of its flue gas is often not continuously obtained. For systems that need to use the computer 31 to operate a controller 34 to record the flue gas analysis results for a long time, it is often impossible to obtain complete sampling data, and the life loss of the analyzer is degraded. The function is invalid. In view of this, there is a need for a flue gas sampling device and method to reduce the labor and filter consumables required for the flue gas sampling device, overcome the disadvantages of not being able to continuously sample the flue gas, and overcome the uneven sampling smoke. Phenomenon and the actual content of the flue gas sampling and further analysis by flue gas sampling, improve the efficiency of the combustion equipment under appropriate combustion adjustment control, and reduce the cost of fuel and meet environmental standards. SUMMARY OF THE INVENTION The object of the present invention is to provide a flue gas sampling unit of a flue gas system and a sampling method thereof to reduce the cost of manpower and filter consumables on conventional flue gas sampling, and overcome the disadvantages of being unable to continuously sample flue gas, and overcome Sampling smoke is uneven and how to accurately present the sampled flue gas. Another object of the present invention is to provide a problem of avoiding the condensation of water vapor in the sampled flue gas into water and blocking the flue gas. Another object of the present invention is to provide long-term continuous smoke sampling. 6 |337242
達到上述目的之一種煙氣系統，包含一供煤裝置， 提供一煤；一鍋爐，與該供煤裝置相連接，使該供煤裝 置所供應的煤送到該鍋爐内燃燒而產生一煙氣；一第一 熱交換器，與該鍋爐連接；一第二熱交換器，與該第一 熱交換連接；及一煙氣取樣單元，係連接該第一熱交換 器與該第二熱交換器間並從該煙氣中取樣。 較佳地，該供煤裝置包含一進料槽、一餵煤器及一 磨煤裝置，該進料槽存放煤，使該餵煤器將該進料槽中 的煤輸送至該磨煤裝置磨碎。 較佳地，該鍋爐底部設有一閘門，使排放燃燒後之 煤渣。 較佳地，該煙氣取樣單元包括有複數個取樣元件設 置於該第一熱交換器與該第二熱交換器間。其中該取樣 元件係均勻分佈在該第一熱交換器與該第二熱交換器的 截面積上。 而該第一熱交換器上的取樣元件較佳地有6個，以 及該第二熱交換器上的取樣元件較佳地有4個。 較佳地，該第一熱交換器係為節煤器。 較佳地，該第二熱交換器係為空氣預熱器。 此外，本發明亦提供一種煙氣系統之煙氣取樣單 元，包含複數個取樣元件，使自煙氣取樣；複數個電磁 閥組件，分別連接該複數個取樣元件；複數個氣動閥組 件，係分別連接該電磁閥組件；一控制器，係控制該電 磁閥組件與該氣動閥組件的啟閉；一過濾器，與該氣動 7 1337242 閥組件連接，使過濾該煙氣；及一分析儀，與該過遽器 連接，使分析該煙氣。 較佳地，該煙氣取樣單元，更包括一加熱暨保溫組 件包覆於該過濾器後端的管件上，避免取樣煙氣中之水 蒸氣會凝結成水而堵住煙氣。 較佳地，該煙氣取樣單元，其中該過濾器與該分析 儀間設置有一第一過濾器與一第二過濾器。 本發明亦提供一種煙氣取樣單元之煙氣取樣方法， 包括：提供複數個取樣元件於該第一熱交換器與該第二 熱交換器；啟動對應於複數個取樣元件的每一電磁閥組 件；啟動對應該電磁閥組件的每一氣動閥組件取樣煙 氣；過濾該煙氣；及分析該煙氣。其中啟動每一電磁閥 組件與每一氣動閥組件步驟更進一步包括：啟動一第一 電磁閥組件與一第一氣動閥組件，間隔一定時間，關閉 該第一電磁閥組件與該第一氣動閥組件，並啟動一第二 電磁閥組件與一第二氣動閥組件，如此依序地啟動/關閉 每一電磁閥組件與每一氣動閥組件，使每一取樣元件自 該第一熱交換器與該第二熱交換器中取樣煙氣；及啟動 所有電磁閥組件與所有氣動閥組件，使每一取樣元件同 時於該第一熱交換器與該第二熱交換器中取樣煙氣。 較佳地，為使取樣管路能保持清潔，本發明使一空 氣自該氣動閥組件經該電磁閥組件輸入該取樣元件進行 清潔。其中更進一步包括：啟動一第一電磁閥組件與一 第一氣動閥組件，間隔一定時間，關閉該第一電磁閥組 件與該第一氣動閥組件，並啟動一第二電磁閥組件與一 8 1337242 9¾ 1 · 2 6修正 年月曰補充 第二氣動閥組件，如此依序地啟動/關閉每一電磁閥組件 與每一氣動閥組件，使清潔每一取樣元件；及啟動一第 七電磁閥組件與一第七氣動閥組件，間隔一定時間，關 閉該第七電磁閥組件與該第七氣動閥組件，並啟動一第 八電磁閥組件與一第八氣動閥組件，如此依序地啟動/關 閉每一電磁閥組件與每一氣動閥組件，使清潔每一取樣 元件。 由此，本發明可以達到降低在煙氣取樣上所需投入 的人力與過濾耗材的成本、可以成功的進行連續取樣煙 氣、取樣煙氣均勻且真實呈獻煙氣的内容等具體功效。 【實施方式】 雖然本發明將參閱含有本發明較佳實施例之所附圖 式予以充分描述，但在此描述之前應瞭解熟悉本行之人 士可修改本文中所描述之發明，同時獲致本發明之功 效。因此，須瞭解以下之描述對熟悉本行技藝之人士而 言為一廣泛之揭示，且其内容不在於限制本發明。 請參閱第一圖，係顯示本發明煙氣系統之煙氣取樣 單元之架構示意圖。本發明煙氣系統包含一供煤裝置 10、一風機14、一锅爐15、一第一熱交換器17、一第二 熱交換器18、一除塵器19、一煙囪20及一煙氣取樣單 元3，其中該第一熱交換器17係一節煤器，而該第二熱 交換器18係一空氣預熱器。該除塵器19可為一靜電除 塵器或袋式除塵器。 該供煤裝置10與鍋爐15連接，而該節煤器17與該 9 5·. ^ ^ 1337242 9A flue gas system for achieving the above object comprises: a coal supply device providing a coal; a boiler connected to the coal supply device, wherein the coal supplied by the coal supply device is sent to the boiler for combustion to generate a flue gas a first heat exchanger connected to the boiler; a second heat exchanger connected to the first heat exchange; and a flue gas sampling unit connecting the first heat exchanger and the second heat exchanger And sampled from the smoke. Preferably, the coal feeding device comprises a feeding trough, a coal feeding device and a coal grinding device, the feeding trough storing coal, so that the coal feeding device transports the coal in the feeding trough to the coal grinding device grinding. Preferably, a gate is provided at the bottom of the boiler to discharge the burnt cinder. Preferably, the flue gas sampling unit includes a plurality of sampling elements disposed between the first heat exchanger and the second heat exchanger. Wherein the sampling element is evenly distributed over the cross-sectional area of the first heat exchanger and the second heat exchanger. Preferably, there are six sampling elements on the first heat exchanger and four sampling elements on the second heat exchanger. Preferably, the first heat exchanger is an economizer. Preferably, the second heat exchanger is an air preheater. In addition, the present invention also provides a flue gas sampling unit of a flue gas system, comprising a plurality of sampling elements for sampling from a flue gas; a plurality of solenoid valve assemblies respectively connected to the plurality of sampling elements; and a plurality of pneumatic valve assemblies respectively Connecting the solenoid valve assembly; a controller controlling the opening and closing of the solenoid valve assembly and the pneumatic valve assembly; a filter coupled to the pneumatic 7 1337242 valve assembly to filter the flue gas; and an analyzer, and The filter is connected to allow analysis of the smoke. Preferably, the flue gas sampling unit further comprises a heating and heat insulating component coated on the pipe member at the rear end of the filter to prevent the water vapor in the sampling flue gas from condensing into water and blocking the flue gas. Preferably, the flue gas sampling unit has a first filter and a second filter disposed between the filter and the analyzer. The present invention also provides a method for sampling a flue gas of a flue gas sampling unit, comprising: providing a plurality of sampling elements to the first heat exchanger and the second heat exchanger; and initiating each solenoid valve assembly corresponding to the plurality of sampling elements Sampling the flue gas of each pneumatic valve assembly corresponding to the solenoid valve assembly; filtering the flue gas; and analyzing the flue gas. The step of starting each solenoid valve assembly and each pneumatic valve assembly further includes: starting a first solenoid valve assembly and a first pneumatic valve assembly, and closing the first solenoid valve assembly and the first pneumatic valve at intervals And actuating a second solenoid valve assembly and a second pneumatic valve assembly to sequentially activate/deactivate each solenoid valve assembly and each pneumatic valve assembly such that each sampling element is coupled to the first heat exchanger The second heat exchanger samples the flue gas; and activates all of the solenoid valve assemblies and all of the pneumatic valve assemblies such that each sampling element simultaneously samples the flue gas in the first heat exchanger and the second heat exchanger. Preferably, to maintain the sampling line clean, the present invention causes an air to be purged from the pneumatic valve assembly through the solenoid valve assembly into the sampling element. The method further includes: starting a first solenoid valve assembly and a first pneumatic valve assembly, closing the first solenoid valve assembly and the first pneumatic valve assembly at a time, and starting a second solenoid valve assembly and an 8 1337242 93⁄4 1 · 2 6 Revision Year 曰Supply the second pneumatic valve assembly, thus sequentially opening/closing each solenoid valve assembly and each pneumatic valve assembly to clean each sampling element; and starting a seventh solenoid valve The assembly and a seventh pneumatic valve assembly are spaced apart for a period of time to close the seventh solenoid valve assembly and the seventh pneumatic valve assembly, and activate an eighth solenoid valve assembly and an eighth pneumatic valve assembly, thereby sequentially starting/ Each solenoid valve assembly and each pneumatic valve assembly are closed to clean each sampling element. Thus, the present invention can achieve the specific effects of reducing the labor required for the sampling of the flue gas and the cost of the filter consumables, and the possibility of successfully sampling the flue gas continuously, sampling the flue gas uniformly and actually presenting the flue gas. The present invention will be fully described with reference to the accompanying drawings in which the preferred embodiments of the present invention are described, but it should be understood that those skilled in the art can modify the invention described herein while obtaining the invention. The effect. Therefore, it is to be understood that the following description is not to be construed as limiting the invention. Please refer to the first figure for a schematic diagram showing the structure of the flue gas sampling unit of the flue gas system of the present invention. The flue gas system of the present invention comprises a coal feeding device 10, a fan 14, a boiler 15, a first heat exchanger 17, a second heat exchanger 18, a dust collector 19, a chimney 20 and a smoke sampling. Unit 3, wherein the first heat exchanger 17 is a lumper and the second heat exchanger 18 is an air preheater. The dust remover 19 can be an electrostatic precipitator or a baghouse. The coal feeding device 10 is connected to the boiler 15, and the economizer 17 is connected with the 9 5·. ^ ^ 1337242 9
鍋爐15連接。該節煤器17與該空氣預熱器】8連接。該 空氣預熱器18則與該除塵器19連接，最後該除塵器= 與該煙囪20相連，使煙氣得以排放。本發明的主要特徵 在於該煙氣取樣單元3係自該空氣預熱器18與該節煤器 17間取樣煙氣，從而由判斷煙氣的條件來調整鍋爐的燃 燒效率。 該供煤裝置10係包含一進料槽1丨、一傲煤器及 一磨煤裝置13’該進料槽U用以進料存放煤，提供煤料 籲 給該餵煤器12。該餵煤器12與該進料槽11連接，將存 放之媒料輸送至該饒煤器12。而該磨煤裝置13係與該發 煤器12連接，將該餵煤器12輸送來的煤料在該裝 f 13中磨碎。本發明進-步利用—風機14來輸送磨^ 的媒枓進入鍋爐15中燃燒。而該鍋爐15底部具有— 中。由於，節煤1 17係為熱交換器，因此可以將8〇(rc 參 的高溪煙氣透過熱交換轉為60(TC較低溫之煙氣。該節煤 g ] 7所回收的鈦铬·5Γ ,、，M , u、人，.、_ ,_The boiler 15 is connected. The economizer 17 is connected to the air preheater 8 . The air preheater 18 is connected to the precipitator 19, and finally the precipitator = is connected to the chimney 20 to allow the flue gas to be discharged. The main feature of the present invention is that the flue gas sampling unit 3 samples flue gas from the air preheater 18 and the economizer 17, thereby adjusting the combustion efficiency of the boiler by determining the condition of the flue gas. The coal feeding device 10 comprises a feed tank 1 , an arson and a coal grinding device 13 ′ for feeding the coal, and supplying the coal to the coal feeder 12 . The coal feeder 12 is connected to the feed tank 11 to deliver the stored medium to the boker 12. The coal grinding device 13 is connected to the coal conditioner 12, and the coal material fed from the coal feeder 12 is ground in the f 13 . The present invention further utilizes the blower 14 to transport the milled media into the boiler 15 for combustion. The bottom of the boiler 15 has a medium. Because the coal-saving 1 17 series is a heat exchanger, it is possible to convert 8 〇 (the rc gin's Gaoxi flue gas through heat exchange to 60 (TC lower temperature flue gas. The coal gang g] 7 recovered titanium chrome ·5Γ , , , M , u , person , . , _ , _
門16,當煤料燃燒完後的煤渣可藉由該閘門16排出系二 外收集送走。而煤料燃燒產生之煙氣則進入該 哭' 10 1337242 96. 1. 26修正年月曰補充 樣單元3自該空氣預熱器18與該節煤器17間取樣煙氣， 從而由判斷煙氣的條件來調整鍋爐的燃燒效率，從而可 以控制系統有較佳的燃燒效率。 由於傳統煙氣系統的煙氣中粉塵量大，且溫度又 高，因此採用本發明煙氣取樣單元是較佳的方法。The door 16 can be collected and sent away by the discharge of the gate 16 after the coal material is burned. The flue gas generated by the combustion of the coal material enters the crying '10 1337242 96. 1. 26 revised year 曰 replenishment sample unit 3 samples the flue gas from the air preheater 18 and the economizer 17, thereby judging the smoke The gas conditions adjust the combustion efficiency of the boiler so that the system can be controlled to have better combustion efficiency. Since the amount of dust in the flue gas of the conventional flue gas system is large and the temperature is high, it is a preferred method to use the flue gas sampling unit of the present invention.
本發明之煙氣取樣單元3係設置在該節煤器17與該 空氣預熱器18間進行煙氣取樣。請進一步參閱第二a圖 及第一 B圖，係顯示本發明第一圖八_八剖線示意圖及第 一圖B-B剖線示意圖。本發明之煙氣取樣單元3係於該 節煤器17的截面積上設有複數個取樣元件4a。較佳地， 是與該空氣預熱器18連接一端的該節煤器17的截面積 上均勻地分佈設有6個取樣元件4a，如第二a圖所示。 而於該空氣預熱器18的戴面積上設有複數個取樣元件 4b，較佳地，是與該節煤器17連接一端的該空氣預熱器 18的截面積上均勻地分佈設有4個取樣元件4b，如第二 B圖所示。因此，本發明可以達到取樣煙氣均勻且真實 呈現煙氣系統内部的煙氣狀態與瞭解組成成份 ，並在分 析後適當地由減絲與㈣、等條絲雜碱15的燃 燒效率’使，燒效率達㈣佳化，並且可降低燃料的成 本’降低空氣汙染排放’並符合環保標準。 请^第三圖’係顯示本發明_種煙氣取樣單元之 ί 本發_氣取樣單元3包含複數個取樣元 件(4a，4b)、管件(4c，4d，4e，4f)、—控制器％…第—電磁 Ί27、一氣動閥組件28、一第二電磁閥組件29、一 加熱暨保溫㈣24、-過渡器、—第—過渡器％、一第 11 1337242The flue gas sampling unit 3 of the present invention is disposed between the economizer 17 and the air preheater 18 for flue gas sampling. Please refer to the second a diagram and the first diagram B, which are schematic diagrams of the first figure VIII of the present invention and the line diagram of the first diagram B-B. The flue gas sampling unit 3 of the present invention is provided with a plurality of sampling elements 4a on the cross-sectional area of the economizer 17. Preferably, six sampling elements 4a are evenly distributed across the cross-sectional area of the economizer 17 connected to one end of the air preheater 18, as shown in the second a diagram. A plurality of sampling elements 4b are disposed on the wearing area of the air preheater 18, and preferably, the air preheater 18 connected to one end of the economizer 17 is evenly distributed across the cross-sectional area of the air preheater 18. Sampling elements 4b, as shown in Figure B. Therefore, the present invention can achieve uniform and true representation of the flue gas state inside the flue gas system and the composition of the constituents, and appropriately after the analysis, the combustion efficiency of the filaments and (4), etc. The burning efficiency is up to (four), and the cost of fuel can be reduced to reduce air pollution emissions and meet environmental standards. Please ^ the third figure ' shows the invention _ kind of flue gas sampling unit ί _ gas sampling unit 3 contains a plurality of sampling elements (4a, 4b), pipe fittings (4c, 4d, 4e, 4f), - controller %...Electromagnetic cymbal 27, a pneumatic valve assembly 28, a second solenoid valve assembly 29, a heating and holding (four) 24, a transition, a - transition -%, a 11 1337242
二過濾器36及一分析儀4〇，該過濾器係一濕式除塵桶 25該氟動閥組件28係與該管件(4c，4d)連接，而管件 (4c，4d)與取樣元件（4a，4b)連接，使當需要清潔該取樣元 件(4a，4b)與管路時或需要對煙氣進行取樣時啟動，以便 進行煙氣之取樣或嘴入空氣清潔之動作。該第一電磁閥 組件27藉由一信號傳輸線21b與該控制器26連接該 控制器26係用以控制及作動該氣動閥組件28,啟動進行 煙氣取樣。該第二電磁閥組件29藉由該信號傳輸線21b 與δ玄控制器26連接，該控制器26係用以控制及作動該 氣動閥組件28，啟動進行空氣喷入用以清潔該取樣元件 (4a，4b)，其中控制煙氣取樣及空氣喷入清潔作動之方 式，於後段會有詳盡之描述。而每一取樣元件(4&，扑）中 的煙氣會經過該煙氣取樣單元3之管件4c後，進入該濕 式除塵桶25，該管件4c可以延伸進入該濕式除塵桶25 内之液體部份，用以將煙氣中的粉塵等雜質過濾，然後 煙氣會上升浮出水面上，再經由該管件4d送到該分析儀 40。其中該液體可為水。而該加熱暨保溫組件24係包覆 於濕式除塵桶25後之管件4d上，用以確保煙氣經過濕 式除塵桶25後之溫度高於水蒸氣冷凝之溫度，以免煙氣 内水伤凝結堵塞管件4d。另，該加熱暨保溫組件241則 係使内部的管線可以保持在一定溫度以上，避免上述水 份凝結堵塞的問題發生。在該濕式除塵桶25後到進入該 分析儀40之管件4d上設有該第一過濾器35及該第二過 濾器36，用以再過滤煙氣令之塵粒，使煙氣可以更乾淨 避免損壞分析儀。此外，該控制器26係一可程式邏輯控 12 1337242a filter 36 and an analyzer 4, the filter is a wet dust bucket 25, the fluorine valve assembly 28 is connected to the pipe (4c, 4d), and the pipe (4c, 4d) and the sampling element (4a) , 4b) the connection is activated when the sampling element (4a, 4b) needs to be cleaned or when the flue gas needs to be sampled for sampling of the flue gas or cleaning of the mouth into the air. The first solenoid valve assembly 27 is coupled to the controller 26 via a signal transmission line 21b for controlling and actuating the pneumatic valve assembly 28 to initiate flue gas sampling. The second solenoid valve assembly 29 is coupled to the delta controller 26 by the signal transmission line 21b for controlling and actuating the pneumatic valve assembly 28 to initiate air injection for cleaning the sampling element (4a). 4b), in which the method of controlling smoke sampling and air injection cleaning is described in detail in the following paragraph. The flue gas in each of the sampling elements (4&) passes through the tube 4c of the flue gas sampling unit 3, and enters the wet dust removing barrel 25, and the tube 4c can extend into the wet dust removing barrel 25. The liquid portion is used for filtering impurities such as dust in the flue gas, and then the flue gas rises and floats out of the water surface, and is sent to the analyzer 40 via the pipe member 4d. Wherein the liquid can be water. The heating and thermal insulation component 24 is wrapped on the pipe fitting 4d behind the wet dust removing bucket 25 to ensure that the temperature of the flue gas after passing through the wet dust removing bucket 25 is higher than the temperature of the water vapor condensation, so as to avoid water damage in the flue gas. Condensate the tube 4d. In addition, the heating and heat preservation component 241 is such that the internal pipeline can be kept above a certain temperature to avoid the problem that the above water condensation is blocked. The first filter 35 and the second filter 36 are disposed on the pipe member 4d entering the analyzer 40 after the wet dust removing bucket 25, so as to filter the dust particles to make the flue gas more Clean to avoid damage to the analyzer. In addition, the controller 26 is a programmable logic control 12 1337242
26曰S 補 制器’並外接一訊號線或網路線22至外部一電腦23上’ 藉由該電腦23，來修改或設定符合設計者所需之新程 式，並用以更新該可程式邏輯控制器。甚或可以將分析 數據記錄或進行各種條件設定等。The 26曰S complementer 'and an external signal line or network route 22 to the external computer 23' is used to modify or set a new program that meets the designer's needs and is used to update the programmable logic control. Device. It is even possible to record analytical data or perform various conditions and so on.
正 % 請參考第四A圖及第四b圖係顯示本發明煙氣取樣 單元之作動流程圖及作動方塊圖。本發明煙氣取樣單元 在作動前’煙氣會於該節煤器17與該空氣預熱氣I8處 進入取樣元件(4a，4b)，使用者藉由電腦23上設定一符合 取樣需求之可程式邏輯程式，並藉由該程式於心疋之時 間内控制該取樣元件(4a,4b)進行煙氣取樣。較佳地’該 節煤器17的截面積上設有6個取樣元件4a，而該空氣預 熱器18的截面積上則有4個取樣元件4b ’如第二A與 二B圖所示。當需要進行煙氣取樣時’啟動該第一電磁 閥組件27,並藉由切換該第一電磁闊組件27中每一電磁 閥依序開啟/關閉便可切換不同的取樣元件(4a，4b)對煙氣 進行取樣工作。該煙氣取樣的動力來自該氣動閥組件 28,當啟動該氣動閥組件28,該氣動閥組件28的每一氣 動閥依序啟動配合該第一電磁閥組件27的每一電磁閥的 切換使該取樣元件(4a，4b)進行取樣。當該氣動閥組件28 與該第一電磁閥組件27作動時，即使該取樣元件(4a，4b) 進行吸入煙氣並取樣，而煙氣取樣後進入如澄式除塵桶 之過濾器25用以過濾煙氣中之塵粒等雜質，再經過管件 進入該分析儀40。該管件4d外部包覆有該加熱暨保 溫組件24,用以確保煙氣之溫度高於水蒸氣冷凝之溫 度，使煙氣不會產生凝結成水堵住管件4d之現象。較佳 13Positive % Please refer to the fourth A and fourth b diagrams for the flow chart and actuation block diagram of the flue gas sampling unit of the present invention. The flue gas sampling unit of the present invention enters the sampling element (4a, 4b) at the economizer 17 and the air preheating gas I8 before the operation, and the user can set a sampling requirement on the computer 23. A program logic program that controls the sampling elements (4a, 4b) for smoke sampling during the heart's time. Preferably, the cross-sectional area of the economizer 17 is provided with six sampling elements 4a, and the cross-sectional area of the air preheater 18 has four sampling elements 4b' as shown in the second A and B diagrams. . When the smoke sampling is required, the first solenoid valve assembly 27 is activated, and the different sampling elements (4a, 4b) can be switched by switching each solenoid valve in the first electromagnetic wide assembly 27 sequentially to be turned on/off. Sampling the flue gas. The power of the flue gas sampling is from the pneumatic valve assembly 28, and when the pneumatic valve assembly 28 is activated, each pneumatic valve of the pneumatic valve assembly 28 sequentially activates the switching of each solenoid valve that cooperates with the first solenoid valve assembly 27. The sampling elements (4a, 4b) are sampled. When the pneumatic valve assembly 28 and the first solenoid valve assembly 27 are actuated, even if the sampling element (4a, 4b) is sucked into the flue gas and sampled, the flue gas is sampled and then enters the filter 25 of the clear dust bucket for use. Impurities such as dust particles in the flue gas are filtered and then passed through the tube to the analyzer 40. The tube 4d is externally coated with the heating and temperature-preserving assembly 24 to ensure that the temperature of the flue gas is higher than the temperature at which the water vapor condenses, so that the flue gas does not condense into water and block the tube 4d. Better 13
地，煙氣再經過該第一過濾器35及該第二過濾器36,用 以再過;慮其中之雜質等，使煙氣更乾淨，最後進入該分 析儀40時’可以保護該分析儀4〇避免損壞與延長壽命。 進入該分析儀40内的煙氣可分析煙氣之狀態來了解燃燒 爐内燃燒之狀況。 清參考第四C圖係顯示本發明清潔煙氣取樣元件之 作動流程圖，即使用者藉由電腦23上設定一符合空氣噴 入清潔需求之可程式邏輯程式。本發縣氣取樣單元在 煙氣取樣作動外’尚可進行喷人空氣以清潔取樣元件 (4a，4b)。本發明係利用煙氣進氣取樣空樓之時間内，控 制與取樣元件(4a，4b)相對應之第二電磁閥組件29之每一 電磁閥作動，並啟動氣動閥組件28，進而送人线來清 件Η，，防止有塵粒塵積在取樣元件(4a，4b) 〇月參閱第五A圖係顯示本發明煙氣取樣單元之煙 取樣方^取樣流程控制圖，在取樣煙氣之過程，係利用6 個位=煤器17肖4個位於空氣職H之取樣元件 (4a，4b)來取樣，於此，先行定義均 之6個取樣元件4a係备取樣元件4a至第六7 第布位於空氣預熱器18之4個取樣元件 4b係第七取樣7C件4b至第十取樣元件仆，1係以每15 而取樣元件4a開始取樣至第六取 樣兀件4a，而再間隔15分鐘後，使第一至 4a皆同時開啟取樣煙氣。因此，藉 ^樣 4a進行取樣’然後全部開啟一起取樣，二 =: 丄幻7242The flue gas passes through the first filter 35 and the second filter 36 to be used again; the impurities and the like are considered to make the flue gas cleaner, and finally the analyzer 40 can be used to protect the analyzer. 4〇 Avoid damage and extend life. The flue gas entering the analyzer 40 analyzes the state of the flue gas to understand the state of combustion in the furnace. Referring to the fourth C diagram, the flow chart of the cleaning smoke sampling component of the present invention is shown, that is, the user sets a programmable logic program on the computer 23 that meets the air injection cleaning requirements. The gas sampling unit of this county is outside the sampling of smoke, and air can be sprayed to clean the sampling elements (4a, 4b). The invention controls the actuation of each solenoid valve of the second solenoid valve assembly 29 corresponding to the sampling element (4a, 4b) during the time when the flue gas intake sampling the empty building, and activates the pneumatic valve assembly 28, thereby sending the person The line is cleaned to prevent dust particles from accumulating in the sampling element (4a, 4b). See Figure 5A for the month to show the smoke sampling method of the flue gas sampling unit of the present invention. The process is to sample by using six bit=kerchers 17 and four sampling elements (4a, 4b) located in the air position H. Here, six sampling elements 4a are defined first, and the sampling elements 4a to sixth are prepared. 7 The fourth sampling element 4b of the air preheater 18 is the seventh sampling 7C piece 4b to the tenth sampling element servant, and the first sampling element 4a is sampled every 15th to the sixth sampling element 4a, and then After 15 minutes, the first to 4a were simultaneously turned on to sample the flue gas. Therefore, sampling is performed by sample 4a' and then all are turned on and sampled together, two =: 丄幻7242
均且均勻地煙氣取樣。之後，再以每間隔15分鐘，依序 由第七取樣元件4b開始取樣至第十取樣元件4b，而再間 隔15分鐘後，將第七至第十取樣元件4b皆同時開啟取 樣煙氣，如上述一樣，可以達到平均且均勻地煙氣取樣。 如此，即完成一煙氣取樣之循環。Both are uniformly and smoked. Then, sampling is started from the seventh sampling element 4b to the tenth sampling element 4b at intervals of 15 minutes, and after another 15 minutes, the seventh to tenth sampling elements 4b are simultaneously turned on to sample the flue gas, such as As described above, average and uniform smoke sampling can be achieved. In this way, a cycle of flue gas sampling is completed.
再請參考第五B圖係顯示本發明煙氣取樣單元之清 表煙氣取樣元件方法流程控制圖。在清潔時，係利用外 部空氣供應源（圖中未示）連接於該第二電磁閥組件29, 且連通於該氣動閥組件28，當需進行取樣元件(4a，4b)與 管件等的清潔工作時’啟動該第二電磁閥組件29的每— 電磁閥’且啟動該氣動閥組件28時，空氣即可喷入該取 樣元件(4a，4b)將積塵進行噴除清潔。該作動說明如後， 首先，係以母30秒鐘為間隔，依序地且逐一由位於節煤 器17之第一取樣元件4a開始噴入空氣至第六取樣元件 4a，及位於空氣預熱器18之第七取樣元件扑開始噴入 空氣至第十取樣元件4b，如此完成一輪循環，執行下一 輪迴之清潔亦與上述相同，且其每次清潔係2分鐘。如 果取樣時間結束時，清潔的進度不管到何處，即停止清 潔作動；亦即清潔作動係隨取樣作動的啟閉。如此，本 發明煙氣取樣單元3利用控制器2 6來控制煙氣進氣取樣 或喷入空氣清潔進行煙氣之取樣或取樣元件(4 a，4 b )之清 潔，以達到可以省去耗費人力去更換過濾材之成本，亦 可達到可以連續取樣不須中斷的功效以及防止煙氣在進 入分析儀刖凝結堵塞管路的缺點。 在詳細β明本發明的較佳實施例之後’熟悉該項技 15 / · _· 1337242Referring again to Figure 5B, the flow control diagram of the method for cleaning the flue gas sampling component of the flue gas sampling unit of the present invention is shown. When cleaning, an external air supply source (not shown) is connected to the second solenoid valve assembly 29, and communicates with the pneumatic valve assembly 28, when the sampling elements (4a, 4b) and the pipe fittings are required to be cleaned. When the 'starting solenoid valve' of the second solenoid valve assembly 29 is activated and the pneumatic valve assembly 28 is activated, air can be injected into the sampling element (4a, 4b) to clean the dust. The operation is as follows. First, the air is injected into the sixth sampling element 4a from the first sampling element 4a of the economizer 17 in sequence, one by one at intervals of 30 seconds, and is preheated in the air. The seventh sampling element of the device 18 begins to inject air into the tenth sampling element 4b, thus completing one cycle, and performing the cleaning of the next cycle is also the same as above, and each cleaning is performed for 2 minutes. If the sampling time is over, the cleaning progress will stop cleaning regardless of where it is going; that is, the cleaning actuation system will open and close with the sampling action. Thus, the flue gas sampling unit 3 of the present invention uses the controller 26 to control the flue gas intake sampling or the injection air cleaning to perform the sampling of the flue gas or the cleaning of the sampling elements (4 a, 4 b ), so that the consumption can be saved. The cost of replacing the filter material by manpower can also achieve the effect of continuous sampling without interruption and preventing the smoke from clotting into the analyzer and clogging the pipeline. After the detailed description of the preferred embodiment of the invention, the user is familiar with the technique 15 / · _· 1337242
術人士可清楚的瞭解，在不脫離下述申請專利範圍與精 神下可進行各種變化與改變，且本發明亦不受限於說明 書中所舉實施例的實施方式。It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the scope of the inventions.
< 5 > 1337242 一_ 96. 1. 26 修正 年月曰補充 【圖式簡單說明】 第一圖顯示本發明煙氣系統之煙氣取樣單元之架構 示意圖。 第一 A圖顯示本發明第一圖A-A剖線示意圖。 第一 B圖顯示本發明第一圖B-B剖線示意圖。 第三圖顯示本發明煙氣取樣單元之架構示意圖。 第四A圖顯示本發明煙氣取樣單元之作動流程圖。 第四B圖顯示本發明煙氣取樣單元之作動方塊圖。 • 第四C圖顯示本發明清潔煙氣取樣元件之作動流程 圖。 第五A圖顯示本發明煙氣取樣單元之煙氣取樣方法 取樣流程控制圖。 第五B圖顯示本發明煙氣取樣單元之清潔煙氣取樣 元件方法流程控制圖。 第六圖顯示習知煙氣取樣系統之示意圖。 φ 【主要元件符號對照說明】 1— 煙氣系統 2— 煙氣 3…煙氣取樣單元 4 a.—取樣元件 4b---取樣元件 4c…管件 4d…管件 4e…管件 17 1337242 96· 1. 26 修正 年月曰補充 4f…管件 10…供煤裝置 11 —進料槽 12—-餵煤器 13…磨煤裝置 14- 風機 15- --銷爐 16- 閘門< 5 > 1337242 A _ 96. 1. 26 Amendment Year Month 曰 Supplement [Simplified Schematic] The first figure shows the schematic diagram of the structure of the flue gas sampling unit of the flue gas system of the present invention. Figure 1A is a cross-sectional view showing the first line A-A of the present invention. Figure 1B is a cross-sectional view showing the first Figure B-B of the present invention. The third figure shows the schematic diagram of the structure of the flue gas sampling unit of the present invention. Figure 4A shows a flow chart of the operation of the flue gas sampling unit of the present invention. Figure 4B shows an actuating block diagram of the flue gas sampling unit of the present invention. • Figure 4C shows the flow diagram of the cleaning smoke sampling element of the present invention. Fig. 5A is a graph showing the sampling flow control chart of the flue gas sampling method of the flue gas sampling unit of the present invention. Fig. 5B is a flow chart showing the flow of the cleaning flue gas sampling element method of the flue gas sampling unit of the present invention. The sixth figure shows a schematic diagram of a conventional smoke sampling system. Φ [Main component symbol comparison description] 1 - Flue gas system 2 - Flue gas 3... Flue gas sampling unit 4 a. - Sampling element 4b - Sampling element 4c... Pipe fitting 4d... Pipe fitting 4e... Pipe fitting 17 1337242 96· 1. 26 Revision Year 曰 Supplement 4f... Pipe fitting 10... Coal feeding device 11 - Feed tank 12 - Feeder 13... Coal mill 14 - Fan 15 - Pin furnace 16 - Gate
17- --節煤器 18- —空氣預熱器 19…除塵器 20…煙囪 21a—彳& 5虎傳輸線 21b—信號傳輸線 22—網路線 23 —電腦17- -- Economizer 18 - - Air preheater 19... Dust collector 20... Chimney 21a - 彳 & 5 Tiger transmission line 21b - Signal transmission line 22 - Network route 23 - Computer
24…加熱暨保溫組件 241--加熱暨保溫組件 25…濕式除塵桶 26…控制器 27…第一電磁閥組件 28…氣動閥組件 29—第二電磁闊組件 31 —電腦 32—過滤材 18 133724224...heating and heat insulating component 241--heating and heat insulating component 25...wet dusting bucket 26...controller 27...first solenoid valve component 28...pneumatic valve component 29—second electromagnetic wide component 31—computer 32—filter material 18 1337242
34…控制器 35 —第一過滤 36—第二過滤 4〇…分析儀34...controller 35 - first filter 36 - second filter 4 〇...analyzer
1919
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Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW096101873A TWI337242B (en) | 2007-01-18 | 2007-01-18 | Flue gas sampling unit of flue gas system and the method for the same |
| KR1020070038533A KR100921135B1 (en) | 2007-01-18 | 2007-04-19 | Flue gas sampling method |
| KR1020090049776A KR101004223B1 (en) | 2007-01-18 | 2009-06-05 | Flue gas system and sampling unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW096101873A TWI337242B (en) | 2007-01-18 | 2007-01-18 | Flue gas sampling unit of flue gas system and the method for the same |
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| Publication Number | Publication Date |
|---|---|
| TW200831829A TW200831829A (en) | 2008-08-01 |
| TWI337242B true TWI337242B (en) | 2011-02-11 |
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| TW096101873A TWI337242B (en) | 2007-01-18 | 2007-01-18 | Flue gas sampling unit of flue gas system and the method for the same |
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| KR (2) | KR100921135B1 (en) |
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| WO1998025078A1 (en) | 1996-12-06 | 1998-06-11 | Nkk Corporation | Burning apparatus and method for restricting the occurrence of dioxins |
| JP2003126648A (en) | 2001-10-22 | 2003-05-07 | Ishikawajima Harima Heavy Ind Co Ltd | Method for injecting ammonia in combustion gas and apparatus thereof |
| KR20050099808A (en) * | 2004-04-12 | 2005-10-17 | 한국전력공사 | Combustion gas auto-sampling measuring apparatus for multi-point |
| US7846405B2 (en) * | 2004-05-21 | 2010-12-07 | General Electric Company | Method and apparatus for measuring and controlling selective catalytic reduction (SCR) emission control systems |
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2007
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| KR20080068508A (en) | 2008-07-23 |
| KR100921135B1 (en) | 2009-10-12 |
| TW200831829A (en) | 2008-08-01 |
| KR20090064522A (en) | 2009-06-19 |
| KR101004223B1 (en) | 2010-12-24 |
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