TWI458926B - Closed air cycle sludge dryer - Google Patents

Closed air cycle sludge dryer Download PDF

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TWI458926B
TWI458926B TW101111364A TW101111364A TWI458926B TW I458926 B TWI458926 B TW I458926B TW 101111364 A TW101111364 A TW 101111364A TW 101111364 A TW101111364 A TW 101111364A TW I458926 B TWI458926 B TW I458926B
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air
sludge drying
condenser
sludge
heat exchange
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TW101111364A
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TW201317529A (en
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Wenhung Chien
Chunjung Chen
Taijui Chiang
Chihhsi Liang
Jenkang Tiao
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Au Optronics Corp
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密閉空氣循環污泥乾燥機Closed air circulation sludge dryer

本發明是有關於一種污泥乾燥機,且特別是有關於一種密閉空氣循環污泥乾燥機。This invention relates to a sludge dryer, and more particularly to a closed air circulating sludge dryer.

設有汙水處理場的工廠通常需要污泥乾燥機來將污泥脫水後乾燥,以達到降低污泥含水量,進而實現污泥減量及安定化之目的,並可降低污泥棄置之運送與最終處理的費用。為了達到污泥減量與降低污泥運送費用,目前市場上已有多種不同結構的污泥乾燥設備。現有的污泥乾燥設備中,很多是利用冷媒降溫以達到除濕的功能,並使用加熱設備提供加熱空氣所需要的熱源。這些設備成本較高、結構複雜,且在工作時要利用大量電力,會消耗大量能源。A plant with a sewage treatment plant usually needs a sludge dryer to dewater the sludge and then dry it, so as to reduce the water content of the sludge, thereby achieving the purpose of sludge reduction and stabilization, and reducing the transportation of sludge disposal. The cost of the final treatment. In order to achieve sludge reduction and reduce sludge transportation costs, there are many different types of sludge drying equipment on the market. Many of the existing sludge drying equipments use a refrigerant to cool down to achieve the function of dehumidification, and use a heating device to provide a heat source required for heating the air. These devices are costly, complex, and use a lot of power when they are working, which consumes a lot of energy.

有鑒於此,如何設計出一種污泥乾燥設備,以節約能量與降低設備成本,是業內技術人員亟需解決的一項課題。In view of this, how to design a sludge drying equipment to save energy and reduce equipment cost is an urgent problem for the technicians in the industry.

本發明的目的就是在提供一種使用廢熱的密閉空氣循環污泥乾燥機,用以節約能源與降低設備成本。It is an object of the present invention to provide a closed air circulating sludge dryer using waste heat to save energy and reduce equipment costs.

依照本發明一實施例,提出一種密閉空氣循環污泥乾燥機,包含污泥乾燥箱、冷凝器、熱交換裝置、封閉式空氣循環迴路、廢熱熱源與冰水機。封閉式空氣循環迴路連通污泥乾燥箱、冷凝器與熱交換裝置。廢熱熱源用以供應熱能至熱交換裝置。冰水機用以移除冷凝器產生之熱能。其中污泥乾燥箱產生含水分之空氣,含水分之空氣經由冷凝器降溫除濕與熱交換裝置加熱後,進入污泥乾燥箱帶走污泥乾燥箱中之水分後,再產生含水分之空氣而循環使用。進一步說,在於密閉空氣循環污泥乾燥機內使用的空氣是屬於一種循環空氣的狀態,尤其是在封閉式空氣循環迴路的空氣,其不與外界進行任何的交換處理。According to an embodiment of the invention, a closed air circulating sludge dryer comprising a sludge drying tank, a condenser, a heat exchange device, a closed air circulation circuit, a waste heat source and a chiller is provided. The closed air circulation circuit is connected to the sludge drying tank, the condenser and the heat exchange device. The waste heat source is used to supply thermal energy to the heat exchange device. The chiller is used to remove the heat generated by the condenser. The sludge drying box generates air containing water, and the air containing water is heated by the condenser to cool and dehumidify and heat the heat exchange device, and then enters the sludge drying box to take away the moisture in the sludge drying box, and then generates moisture containing air. recycle. Further, the air used in the closed air circulation sludge dryer belongs to a state of circulating air, especially in the air of the closed air circulation circuit, which does not perform any exchange process with the outside.

密閉空氣循環污泥乾燥機更包含一風機,設置於熱交換裝置與污泥乾燥箱之間,驅使加熱後的空氣進入污泥乾燥箱。封閉式空氣循環迴路包含冷風進氣管路,連接冷凝器與熱交換裝置。封閉式空氣循環迴路包含熱風進氣管路,連接熱交換裝置與污泥乾燥箱。熱風進氣管路之排氣口連接污泥乾燥箱的下半部。封閉式空氣循環迴路包含熱風排氣管路,連接污泥乾燥箱與冷凝器。其中廢熱熱源包含一壓縮空氣。熱交換裝置可包含一腔體與一分隔機構,分隔機構將腔體分為第一流道與第二流道,降溫除濕後的空氣與壓縮空氣分別進入第一流道與第二流道以藉由分隔機構進行熱交換。或者,熱交換裝置可包含腔體、第一交換器、第二熱交換器以及液態循環迴路。腔體位於冷凝器與污泥乾燥箱之間。第一熱交換器用以與廢熱熱源進行熱交換。第二熱交換器設置於腔體中,用以與降溫除濕後的空氣進行熱交換。液態循環迴路連接第一熱交換器與第二熱交換器。其中廢熱熱源之溫度小於或是等於攝氏130度。The closed air circulation sludge dryer further comprises a fan disposed between the heat exchange device and the sludge drying tank to drive the heated air into the sludge drying box. The enclosed air circulation circuit contains a cold air intake line connecting the condenser to the heat exchange unit. The enclosed air circulation circuit includes a hot air intake line connecting the heat exchange unit and the sludge drying tank. The exhaust port of the hot air intake pipe is connected to the lower half of the sludge drying tank. The enclosed air circulation circuit includes a hot air exhaust line connecting the sludge drying tank and the condenser. The waste heat source contains a compressed air. The heat exchange device may include a cavity and a partitioning mechanism. The partitioning mechanism divides the cavity into a first flow channel and a second flow channel, and the air and compressed air after cooling and dehumidification enter the first flow channel and the second flow channel respectively. The separation mechanism performs heat exchange. Alternatively, the heat exchange device can include a chamber, a first exchanger, a second heat exchanger, and a liquid recycle loop. The cavity is located between the condenser and the sludge drying oven. The first heat exchanger is for heat exchange with the waste heat source. The second heat exchanger is disposed in the cavity for heat exchange with the air after cooling and dehumidification. The liquid circulation circuit connects the first heat exchanger and the second heat exchanger. The temperature of the waste heat source is less than or equal to 130 degrees Celsius.

由於通過污泥乾燥箱的空氣為封閉循環使用,因此不易有臭味外洩、影響環境之困擾。此外,利用工廠中的低階廢熱作為加熱空氣的熱源,除可具有節約能源之功效之外,更可將廢熱降溫,具有節能減碳之效果。Since the air passing through the sludge drying box is closed and used, it is not easy to have odor leakage and affect the environment. In addition, by using the low-order waste heat in the factory as the heat source for heating the air, in addition to the energy-saving effect, the waste heat can be cooled, and the effect of energy saving and carbon reduction can be achieved.

以下將以圖式及詳細說明清楚說明本發明之精神,任何所屬技術領域中具有通常知識者在瞭解本發明之較佳實施例後,當可由本發明所教示之技術,加以改變及修飾,其並不脫離本發明之精神與範圍。The spirit and scope of the present invention will be apparent from the following description of the preferred embodiments of the invention. The spirit and scope of the invention are not departed.

參照第1圖,其繪示本發明之密閉空氣循環污泥乾燥機一實施例的方塊圖。密閉空氣循環污泥乾燥機100包含污泥乾燥箱110、冷凝器120、熱交換裝置130、封閉式空氣循環迴路140、廢熱熱源150,以及冰水機160。其中封閉式空氣循環迴路140連通污泥乾燥箱110、冷凝器120與熱交換裝置130。廢熱熱源150用以供應熱能至熱交換裝置130,冰水機160則是用以移除冷凝器120所產生之熱能。密閉空氣循環污泥乾燥機100更包含有風機170,設置於熱交換裝置130與污泥乾燥箱110之間。Referring to Fig. 1, there is shown a block diagram of an embodiment of a closed air circulating sludge dryer of the present invention. The closed air circulating sludge dryer 100 includes a sludge drying tank 110, a condenser 120, a heat exchange device 130, a closed air circulation circuit 140, a waste heat source 150, and a chiller 160. The closed air circulation circuit 140 is connected to the sludge drying tank 110, the condenser 120 and the heat exchange device 130. The waste heat source 150 is used to supply thermal energy to the heat exchange device 130, and the chiller 160 is used to remove the heat energy generated by the condenser 120. The closed air circulating sludge dryer 100 further includes a fan 170 disposed between the heat exchange device 130 and the sludge drying tank 110.

空氣經由熱交換裝置130加熱之後,會成為含水量較低的高溫乾燥空氣,此加熱後的高溫乾燥空氣經由風機170驅動,從封閉式空氣循環迴路140進入污泥乾燥箱110,帶走污泥乾燥箱110中的水氣後,變成中溫潮濕空氣,此含有水分的中溫潮濕空氣再經由封閉式空氣循環迴路140送至冷凝器120,經由冷凝器120降溫除濕變成乾燥低溫空氣之後,再由封閉式空氣循環迴路140送至熱交換裝置130加熱成為高溫乾燥空氣後,再次循環使用。After the air is heated by the heat exchange device 130, it becomes a high-temperature dry air having a low water content. The heated high-temperature dry air is driven by the blower 170, enters the sludge drying tank 110 from the closed air circulation circuit 140, and takes away the sludge. After the water vapor in the drying box 110 is turned into medium-temperature humid air, the medium-temperature humid air containing moisture is sent to the condenser 120 via the closed air circulation circuit 140, and after being cooled and dehumidified by the condenser 120 to become dry low-temperature air, After being sent to the heat exchange device 130 by the closed air circulation circuit 140 to be heated to a high temperature dry air, it is recycled again.

所謂的廢熱熱源150主要是指工廠中的低階廢熱,更具體地說,可以為空氣壓縮機所排出的壓縮空氣、或是高溫水蒸氣等廢熱,此些廢熱熱源的溫度為小於或是等於攝氏130度。由於本發明之密閉空氣循環污泥乾燥機100是利用廢熱熱源150提供熱能予熱交換裝置130,因此,可以節省傳統使用電力加熱空氣所需的能源,更可以節省過去需要降溫處理這些廢熱所需要的能量。The so-called waste heat source 150 mainly refers to low-order waste heat in the factory, more specifically, it can be compressed air discharged from an air compressor or waste heat such as high-temperature steam, and the temperature of the waste heat source is less than or equal to 130 degrees Celsius. Since the closed air circulating sludge dryer 100 of the present invention provides the thermal energy preheating device 130 by using the waste heat source 150, the energy required for the conventional use of electric heating air can be saved, and the need for cooling the waste heat in the past can be saved. energy.

本發明之熱交換裝置130與廢熱熱源150之間的熱交換可以透過氣體對液體的熱交換形式或是氣體對氣體的熱交換形式進行,以下將分別以實施例具體說明之。The heat exchange between the heat exchange unit 130 of the present invention and the waste heat source 150 can be carried out by means of a heat exchange form of the gas to the liquid or a heat exchange form of the gas to the gas, which will be specifically described below by way of examples.

參照第2圖,其為本發明之密閉空氣循環污泥乾燥機另一實施例的示意圖。密閉空氣循環污泥乾燥機200包含有污泥乾燥箱210、冷凝器220、熱交換裝置230、封閉式空氣循環迴路240、廢熱熱源250、冰水機260以及風機270。污泥212為存放在污泥乾燥箱210中。封閉式空氣循環迴路240連通污泥乾燥箱210、冷凝器220與熱交換裝置230。廢熱熱源250用以供應熱能至熱交換裝置230,冰水機260則是用以移除冷凝器220所產生之熱能。風機270設置於熱交換裝置230與污泥乾燥箱210之間,以驅使加熱後的空氣從熱交換裝置230進入污泥乾燥箱210。Referring to Figure 2, there is shown a schematic view of another embodiment of a closed air circulating sludge dryer of the present invention. The closed air circulating sludge dryer 200 includes a sludge drying tank 210, a condenser 220, a heat exchange device 230, a closed air circulation circuit 240, a waste heat source 250, a chiller 260, and a blower 270. The sludge 212 is stored in the sludge drying tank 210. The enclosed air circulation circuit 240 communicates with the sludge drying tank 210, the condenser 220, and the heat exchange device 230. The waste heat source 250 is used to supply thermal energy to the heat exchange device 230, and the chiller 260 is used to remove the heat energy generated by the condenser 220. The fan 270 is disposed between the heat exchange device 230 and the sludge drying tank 210 to drive the heated air from the heat exchange device 230 into the sludge drying tank 210.

封閉式空氣循環迴路240包含有冷風進氣管路242,連接冷凝器220與熱交換裝置230,使得經由冷凝器220降溫除濕後的低溫乾燥空氣經由冷風進氣管路242進入熱交換裝置230中加熱升溫。具體而言,密閉空氣循環污泥乾燥機200包含有第一腔體222,冷凝器220位於第一腔體222之中,冷風進氣管路242連接第一腔體222與熱交換裝置230。The enclosed air circulation circuit 240 includes a cold air intake line 242 that connects the condenser 220 and the heat exchange device 230 such that the low temperature dry air cooled and dehumidified via the condenser 220 enters the heat exchange device 230 via the cold air intake line 242. Heat up. Specifically, the closed air circulation sludge dryer 200 includes a first cavity 222, the condenser 220 is located in the first cavity 222, and the cold air intake pipe 242 is connected to the first cavity 222 and the heat exchange device 230.

封閉式空氣循環迴路240包含熱風進氣管路244,連接熱交換裝置230與污泥乾燥箱210。風機270設置於熱風進氣管路中,使得經由熱交換裝置230加熱後的高溫乾燥空氣藉由風機270的驅動經由熱風進氣管路244進入污泥乾燥箱210,帶走污泥212的水分。為了增加高溫乾燥空氣與污泥212的接觸時間,以提升污泥乾燥箱210的乾燥效果,熱風進氣管路244之排氣口245較佳地為連接於污泥乾燥箱210的下半部,使得高溫乾燥空氣在上升的過程中與污泥212充分接觸,以帶走污泥212所含之水氣而變成中溫潮濕空氣。The enclosed air circulation circuit 240 includes a hot air intake line 244 that connects the heat exchange unit 230 to the sludge drying tank 210. The fan 270 is disposed in the hot air intake pipe, so that the high-temperature dry air heated by the heat exchange device 230 enters the sludge drying tank 210 via the hot air intake pipe 244 by the driving of the fan 270, and takes away the moisture of the sludge 212. . In order to increase the contact time of the high temperature dry air with the sludge 212 to improve the drying effect of the sludge drying tank 210, the exhaust port 245 of the hot air intake line 244 is preferably connected to the lower half of the sludge drying tank 210. The high-temperature dry air is brought into full contact with the sludge 212 during the ascending process to take away the moisture contained in the sludge 212 and become the medium-temperature humid air.

封閉式空氣循環迴路240包含有熱風排氣管路246,連接污泥乾燥箱210與冷凝器220,更具體地說,熱風排氣管路246連接污泥乾燥箱210與第一腔體222。熱風排氣管路246之入風口247較佳地為位於污泥乾燥箱210的上半部,以便於收集中溫潮濕空氣。含有水分的中溫潮濕空氣經由熱風排氣管路246進入第一腔體222後,利用冷凝器220降溫除濕。密閉空氣循環污泥乾燥機200更包含有集水盤224,集水盤224設置於第一腔體222之中,並位於冷凝器220下方,以收集凝結的水氣。The enclosed air circulation circuit 240 includes a hot air exhaust line 246 that connects the sludge drying tank 210 with the condenser 220, and more specifically, the hot air exhaust line 246 connects the sludge drying tank 210 with the first chamber 222. The air inlet 247 of the hot air exhaust line 246 is preferably located in the upper half of the sludge drying tank 210 to facilitate collection of moderate temperature humid air. The medium-temperature humid air containing moisture enters the first cavity 222 via the hot air exhaust line 246, and is cooled and dehumidified by the condenser 220. The closed air circulating sludge dryer 200 further includes a water collecting tray 224 disposed in the first cavity 222 and located below the condenser 220 to collect the condensed moisture.

冰水機260則是與冷凝器220連接,以移除冷凝器220進行降溫時所產生的熱量。冰水機260可以為獨立主機,或是與廠房中的其他機具共用,以節省空間配置與設備成本。The chiller 260 is coupled to the condenser 220 to remove heat generated by the condenser 220 for cooling. The chiller 260 can be a standalone host or shared with other implements in the plant to save space and equipment costs.

本實施例中的熱交換裝置230為氣體對液體的熱交換形式。熱交換裝置230包含第二腔體232、第一熱交換器234、第二熱交換器236與液態循環迴路238。第二腔體232設置於冷凝器220與污泥乾燥箱210之間,第二腔體232分別與冷風進氣管路242與熱風進氣管路244連接。第一熱交換器234設置於第二腔體232中。第二熱交換器234則是設置於鄰近廢熱熱源250。液態循環迴路238連接第一熱交換器234與第二熱交換器236。第二熱交換器236與廢熱熱源250之熱氣進行熱交換之後,其內之的高溫流體,如水或冷煤等液態流體,經由液態循環迴路238進入第一熱交換器234中,使第一熱交換器234利用高溫流體與冷凝器220降溫後之低溫乾燥空氣進行熱交換,之後,第一熱交換器234中被降溫的流體再經由液態循環迴路238送入第二熱交換器236中再次與廢熱熱源250進行熱交換而循環使用。The heat exchange device 230 in this embodiment is a heat exchange form of a gas to a liquid. The heat exchange device 230 includes a second chamber 232, a first heat exchanger 234, a second heat exchanger 236, and a liquid recycle circuit 238. The second cavity 232 is disposed between the condenser 220 and the sludge drying tank 210, and the second cavity 232 is connected to the cold air intake pipe 242 and the hot air intake pipe 244, respectively. The first heat exchanger 234 is disposed in the second cavity 232. The second heat exchanger 234 is disposed adjacent to the waste heat source 250. The liquid circulation circuit 238 connects the first heat exchanger 234 and the second heat exchanger 236. After the second heat exchanger 236 exchanges heat with the hot gas of the waste heat source 250, the high temperature fluid therein, such as water or cold coal, enters the first heat exchanger 234 via the liquid circulation circuit 238 to make the first heat The exchanger 234 exchanges heat with the low temperature dry air cooled by the condenser 220 by the high temperature fluid, and then the cooled fluid in the first heat exchanger 234 is sent to the second heat exchanger 236 via the liquid circulation circuit 238 again. The waste heat source 250 is subjected to heat exchange for recycling.

由於密閉空氣循環污泥乾燥機200是利用廢熱熱源250提供熱交換裝置230所需要的熱能,可以節省傳統使用電力加熱空氣所需的能源,更可以節省過去需要降溫處理這些廢熱所需要的能量,達到環保的功效。除此之外,此種氣體對液體的熱交換形式適用於較高階的廢熱,如溫度達攝氏130度的廢熱或是輸送管路較遠的地方。先將熱源轉成液體型式再輸送至遠端,對於設置成本及空間皆較省。Since the closed air circulating sludge dryer 200 is the heat energy required to provide the heat exchange device 230 by using the waste heat source 250, the energy required for the conventional use of electric heating air can be saved, and the energy required to cool the waste heat in the past can be saved. Reach environmental protection. In addition, the heat exchange form of the gas to the liquid is suitable for higher-order waste heat, such as waste heat of 130 degrees Celsius or a place farther from the transfer line. First, the heat source is converted into a liquid type and then transported to the far end, which is more economical for installation cost and space.

參照第3圖,其為本發明之密閉空氣循環污泥乾燥機又一實施例的示意圖。密閉空氣循環污泥乾燥機200包含有污泥乾燥箱210、冷凝器220、熱交換裝置230’、封閉式空氣循環迴路240、廢熱熱源250、冰水機260以及風機270。污泥212為存放在污泥乾燥箱210中。封閉式空氣循環迴路240連通污泥乾燥箱210、冷凝器220與熱交換裝置230’。廢熱熱源250用以供應熱能至熱交換裝置230’,冰水機260則是用以移除冷凝器220所產生之熱能。風機270設置於熱交換裝置230’與污泥乾燥箱210之間,以驅使加熱後的空氣從熱交換裝置230’進入污泥乾燥箱210。Referring to Figure 3, there is shown a schematic view of yet another embodiment of a closed air circulating sludge dryer of the present invention. The closed air circulating sludge dryer 200 includes a sludge drying tank 210, a condenser 220, a heat exchange unit 230', a closed air circulation circuit 240, a waste heat source 250, a chiller 260, and a blower 270. The sludge 212 is stored in the sludge drying tank 210. The enclosed air circulation circuit 240 communicates with the sludge drying tank 210, the condenser 220, and the heat exchange unit 230'. The waste heat source 250 is used to supply thermal energy to the heat exchange unit 230', and the chiller 260 is used to remove the heat energy generated by the condenser 220. The fan 270 is disposed between the heat exchange unit 230' and the sludge drying tank 210 to drive the heated air from the heat exchange unit 230' to the sludge drying tank 210.

本實施例與前一實施例之差異在於本實施例中的熱交換裝置230’是氣態對氣態的熱交換形式。以下僅針對與熱交換裝置230’相關的元件進行描述,其餘元件之結構與功用請參見前一實施例,在此不再贅述。The difference between this embodiment and the previous embodiment is that the heat exchange device 230' in this embodiment is in a gaseous to gaseous heat exchange form. The following description is only for the components related to the heat exchange device 230'. For the structure and function of the remaining components, refer to the previous embodiment, and details are not described herein again.

熱交換裝置230’包含有第二腔體232與一分隔機構231,分隔機構231將第二腔體232分為相互隔離的第一流道233與第二流道235。第一流道233連接冷風進氣管路242與熱風進氣管路244。經由冷凝器220降溫除濕後之空氣流入第一流道233。廢熱熱源250,如約攝氏100度的低階廢熱蒸氣則是進入第二流道235中,第一流道233中之較為低溫的空氣與第二流道235中較為高溫的空氣,藉由分隔機構231進行熱交換,以升溫低溫乾燥空氣為高溫乾燥空氣。由於密閉空氣循環污泥乾燥機200是利用廢熱熱源250提供熱交換裝置230’所需要的熱能,可以節省傳統使用電力加熱空氣所需的能源,此外,回收低階廢熱以直接當作熱交換裝置230之熱源,亦可減少需降溫亦或升溫其他溫度之廢熱所需的能量,達到環保的功效。此種氣態對氣態的熱交換形式適用於較為低階,如溫度在攝氏100度左右的氣體廢熱,或是傳送距離較短的設備中,具有良好的熱交換效率。The heat exchange device 230' includes a second cavity 232 and a partitioning mechanism 231. The partitioning mechanism 231 divides the second cavity 232 into first and second flow paths 233, 235, which are isolated from each other. The first flow passage 233 connects the cold air intake line 242 and the hot air intake line 244. The air cooled and dehumidified by the condenser 220 flows into the first flow path 233. The waste heat source 250, such as low-order waste heat steam of about 100 degrees Celsius, enters the second flow channel 235, the relatively low temperature air in the first flow channel 233 and the relatively high temperature air in the second flow channel 235, by the partition mechanism 231 performs heat exchange to heat the low-temperature dry air to dry air at a high temperature. Since the closed air circulation sludge dryer 200 is the heat energy required to supply the heat exchange device 230' by using the waste heat source 250, the energy required for the conventional use of electric heating air can be saved, and in addition, the low-order waste heat is recovered to directly serve as a heat exchange device. The 230 heat source can also reduce the energy required to cool down or heat the waste heat at other temperatures to achieve environmental protection. This gaseous to gaseous heat exchange form is suitable for lower order, such as gas waste heat at a temperature of about 100 degrees Celsius, or a device with a short transmission distance, and has good heat exchange efficiency.

由上述本發明較佳實施例可知,應用本發明具有下列優點。由於通過污泥乾燥箱的空氣為封閉循環使用,因此不易有臭味外洩、影響環境之困擾。此外,利用工廠中的低階廢熱作為加熱空氣的熱源,除可具有節約能源之功效之外,更可將廢熱降溫,具有節能減碳之效果。It will be apparent from the above-described preferred embodiments of the present invention that the application of the present invention has the following advantages. Since the air passing through the sludge drying box is closed and used, it is not easy to have odor leakage and affect the environment. In addition, by using the low-order waste heat in the factory as the heat source for heating the air, in addition to the energy-saving effect, the waste heat can be cooled, and the effect of energy saving and carbon reduction can be achieved.

雖然本發明已以一較佳實施例揭露如上,然其並非用以限定本發明,任何熟習此技藝者,在不脫離本發明之精神和範圍內,當可作各種之更動與潤飾,因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been described above in terms of a preferred embodiment, it is not intended to limit the invention, and it is obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100...密閉空氣循環污泥乾燥機100. . . Closed air circulation sludge dryer

110、210...污泥乾燥箱110, 210. . . Sludge drying oven

120、220...冷凝器120, 220. . . Condenser

130、230、230’...熱交換裝置130, 230, 230’. . . Heat exchange device

140、240...封閉式空氣循環迴路140, 240. . . Closed air circulation circuit

150、250...廢熱熱源150, 250. . . Waste heat source

160、260...冰水機160, 260. . . Ice water machine

170、270...風機170, 270. . . Fan

212...污泥212. . . sludge

222...第一腔體222. . . First cavity

224...集水盤224. . . Water tray

231...分隔機構231. . . Separation mechanism

232...第二腔體232. . . Second cavity

233...第一流道233. . . First runner

234...第一熱交換器234. . . First heat exchanger

235...第二流道235. . . Second flow path

236...第二熱交換器236. . . Second heat exchanger

238...液態循環迴路238. . . Liquid circulation circuit

242...冷風進氣管路242. . . Cold air intake pipe

244...熱風進氣管路244. . . Hot air intake pipe

245...排氣口245. . . exhaust vent

246...熱風排氣管路246. . . Hot air exhaust pipe

247...入風口247. . . Air inlet

為讓本發明之上述和其他目的、特徵、優點與實施例能更明顯易懂,所附圖式之詳細說明如下:The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

第1圖繪示本發明之密閉空氣循環污泥乾燥機一實施例的方塊圖。Fig. 1 is a block diagram showing an embodiment of a closed air circulating sludge dryer of the present invention.

第2圖為本發明之密閉空氣循環污泥乾燥機另一實施例的示意圖。Fig. 2 is a schematic view showing another embodiment of the closed air circulating sludge dryer of the present invention.

第3圖為本發明之密閉空氣循環污泥乾燥機又一實施例的示意圖。Fig. 3 is a schematic view showing still another embodiment of the closed air circulating sludge dryer of the present invention.

100...密閉空氣循環污泥乾燥機100. . . Closed air circulation sludge dryer

110...污泥乾燥箱110. . . Sludge drying oven

120...冷凝器120. . . Condenser

130...熱交換裝置130. . . Heat exchange device

140...封閉式空氣循環迴路140. . . Closed air circulation circuit

150...廢熱熱源150. . . Waste heat source

160...冰水機160. . . Ice water machine

170...風機170. . . Fan

Claims (8)

一種密閉空氣循環污泥乾燥機,包含:一污泥乾燥箱;一冷凝器;一廢熱熱源;一熱交換裝置,包含:一腔體,位於該冷凝器與該污泥乾燥箱之間;一第一熱交換器,用以與該廢熱熱源進行熱交換;一第二熱交換器,設置於該腔體中;以及一液態循環迴路,連接該第一熱交換器與該第二熱交換器;一封閉式空氣循環迴路,連通該污泥乾燥箱、該冷凝器與該熱交換裝置;以及一冰水機,以移除該冷凝器產生之熱能,其中該污泥乾燥箱產生一含水分之空氣,該含水分之空氣經由該冷凝器降溫除濕與該第二熱交換器加熱後,進入該污泥乾燥箱帶走該污泥乾燥箱中之水分後,再產生該含水分之空氣而循環使用。 A closed air circulating sludge dryer comprises: a sludge drying tank; a condenser; a waste heat source; a heat exchange device comprising: a cavity between the condenser and the sludge drying tank; a first heat exchanger for exchanging heat with the waste heat source; a second heat exchanger disposed in the cavity; and a liquid circulation circuit connecting the first heat exchanger and the second heat exchanger a closed air circulation loop connecting the sludge drying tank, the condenser and the heat exchange device, and a chiller to remove heat energy generated by the condenser, wherein the sludge drying tank generates a moisture content Air, the moisture-containing air is cooled and dehumidified by the condenser and heated by the second heat exchanger, and then enters the sludge drying box to take away the moisture in the sludge drying box, and then the moisture-containing air is generated. recycle. 一種密閉空氣循環污泥乾燥機,包含:一污泥乾燥箱;一冷凝器; 一廢熱熱源,該廢熱熱源包含壓縮空氣;一熱交換裝置,包含一腔體與一分隔機構,該分隔機構將該腔體分為一第一流道與一第二流道;以及一冰水機,以移除該冷凝器產生之熱能,其中該污泥乾燥箱產生一含水分之空氣,該含水分之空氣經由該冷凝器降溫除濕,該降溫除濕後的空氣與該壓縮空氣分別進入該第一流道與該第二流道以藉由該分隔機構進行熱交換,該空氣接著進入該污泥乾燥箱帶走該污泥乾燥箱中之水分後,再產生該含水分之空氣而循環使用。 A closed air circulating sludge dryer comprising: a sludge drying tank; a condenser; a waste heat source comprising compressed air; a heat exchange device comprising a cavity and a partitioning mechanism, the partitioning mechanism dividing the cavity into a first flow path and a second flow path; and an ice water machine And removing the heat energy generated by the condenser, wherein the sludge drying box generates a moisture-containing air, and the moisture-containing air is cooled and dehumidified via the condenser, and the cooled and dehumidified air and the compressed air respectively enter the first The first-class road and the second flow path are heat-exchanged by the partitioning mechanism, and then the air enters the sludge drying box to take away the moisture in the sludge drying box, and then the moisture-containing air is generated and recycled. 如申請專利範圍第1或2項所述之密閉空氣循環污泥乾燥機,更包含一風機,設置於該熱交換裝置與該污泥乾燥箱之間,驅使該加熱後的空氣進入該污泥乾燥箱。 The closed air circulating sludge dryer according to claim 1 or 2, further comprising a fan disposed between the heat exchange device and the sludge drying tank to drive the heated air into the sludge Drying box. 如申請專利範圍第1或2項所述之密閉空氣循環污泥乾燥機,其中該封閉式空氣循環迴路包含一冷風進氣管路,連接該冷凝器與該熱交換裝置。 A closed air circulating sludge dryer according to claim 1 or 2, wherein the closed air circulation circuit comprises a cold air intake line connecting the condenser and the heat exchange device. 如申請專利範圍第1或2項所述之密閉空氣循環污泥乾燥機,其中該封閉式空氣循環迴路包含一熱風進氣管路,連接該熱交換裝置與該污泥乾燥箱。 The closed air circulating sludge dryer according to claim 1 or 2, wherein the closed air circulation circuit comprises a hot air inlet pipe connected to the heat exchange device and the sludge drying tank. 如申請專利範圍第4項所述之密閉空氣循環污泥乾燥機,其中該熱風進氣管路之一排氣口連接該污泥乾燥箱的下半部。 The closed air circulating sludge dryer according to claim 4, wherein an exhaust port of the hot air intake pipe is connected to a lower half of the sludge drying tank. 如申請專利範圍第1或2項所述之密閉空氣循環污泥乾燥機,其中該封閉式空氣循環迴路包含一熱風排氣管路,連接該污泥乾燥箱與該冷凝器。 The closed air circulating sludge dryer according to claim 1 or 2, wherein the closed air circulation circuit comprises a hot air exhaust line connecting the sludge drying tank and the condenser. 如申請專利範圍第1或2項所述之密閉空氣循環污泥乾燥機,其中該廢熱熱源之溫度小於或是等於攝氏130度。The closed air circulating sludge dryer according to claim 1 or 2, wherein the waste heat source has a temperature of less than or equal to 130 degrees Celsius.
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