M373235 五、新型說明： 【新型所屬之技術領域】 本創作係有關一種揮發性有機廢氣處理系統之節能裝 置，尤指一種增設一熱交換器將經焚化爐焚化後之淨化氣 流，再次進行熱回收後才對外排放之設計者。 【先前技術】 按，生活和生産中廣泛應用的有機溶劑極易揮發成氣 體，故又名揮發性有機物（Volatile Organic Compounds， VOCs)，而多數的VOCs對人體有一定毒性，必須加以處理； 其中，焚化法為VOCs廢氣處理方式之一種，在適當條件下 之VOCs去除率可達99%以上，燃燒後之產物通常為水、二 氧化碳、氮氧化物、硫氧化物…等，故為一種可有效處理 廢氣中所含之VOCs之方法；然而，一般會先以轉輪式濃縮 器（Rotor type rotary concentrator)、轉環式濃縮器 (Carousel type rotary concentrator)或流體化床濃縮器 (Fluidized bed concentrator)將 VOCs 廢氣濃縮，再把濃 縮之VOCs廢氣送入焚化爐淨化處理，而利用吸附一濃縮脫 附一焚化等三項連續程序，使VOCs裂解為無害之水及二氧 化碳，而利用濃縮器提升焚化爐之焚化效能。 次按，轉輪式或轉環式濃縮器搭配焚化爐之揮發性有 機廢氣處理系統，其設備特性適合處理高流量（l〇〇〇〇Nm3/hr 以上）、中低污染物濃度（l〇〇〇ppmv@solvent以下）及含多物 種之VOCs廢氣；其中，轉輪式（或轉環式）濃縮器通常可分 為較大之吸附區（Adsorption zone ; Process zone)及較小 -3- M373235 之脫附區（Desorption zone ; Regeneration zone ;也稱為 再生區），或是進一步於脫附區與吸附區之間增加面積與脫 附區相當之冷卻區（Cool ing zone ; Purge zone ;也稱為隔 離區）；其三者的面積比可為3:1:1或5:2:1或6:1: 1或10: 1: 1或其他比例；而轉輪（或轉環）的基體（Matrix) 是由一些特定的固體基材（Substrate)塗佈上一層吸附劑 粉末所組成，基材是以陶瓷或玻璃或活性碳纖維紙經燒結 所作成，陶瓷纖維因具備耐高溫、熱穩定性高、可水洗、 不可燃及耐酸鹼的特性而最受廣泛使用，吸附劑的種類則 視欲處理的臭味氣體成份而有所不同，一般可採用活性碳 或沸石。 於是，轉輪（或轉環）因減速機（Geared motor)之帶動 而轉動（1〜10RPH ;大部份為2〜6RPH)，轉輪（或轉環）位於 吸附區内之吸附劑，乃進行第一階段之吸附程序，將VOCs 廢氣於常溫下予以吸附，淨化後之氣體直接排放至大氣； 而隨著轉輪（或轉環）之轉動，當吸附VOCs廢氣後之吸附劑 轉至脫附區時，即進入第二階段之脫附程序，此脫附程序 所須之熱空氣，是由冷卻區出口之預熱空氣與後端焚化爐 熱交換後之熱空氣（約160〜300°C ;大部份為180〜220°C) 來提供，藉熱空氣自進入脫附區之吸附劑將有機物濃縮脫 附出來，此時出流污染物濃度大約為入流廢氣之5〜2 0倍 左右，而脫附出來之有機物則可於第三階段之焚化爐進行 高溫（600°C以上；若為觸媒式直燃爐則為200〜450°C)焚 化，如此可以減少後續之廢氣處理單元尺寸，並節省初設 費用及運轉費用。 M373235 然而，如第一圖所示，習知之揮發性有機廢氣處理系 統，其處理揮發性有機廢氣之過程，係藉一第一風機（11) 將揮發性有機廢氣抽送流經一轉輪式濃縮器（30)之吸附區 (31)，致使揮發性有機廢氣中之有機物質被位於吸附區（31) 之吸附劑所吸附，吸附處理後之淨化氣體則經該第一風機 (11)排放；此後，當已吸附揮發性有機廢氣之吸附劑轉至 脫附區（32)時，則將經一第一熱交換器（21)加熱之脫附氣 流由一第二風機（12)抽送通過，被吸附劑吸附的有機物質 因受熱脫附到濃縮氣流中，該濃縮氣流再被導引至一第二 熱交換器（22)預熱，而導入一直燃式焚化爐（40)燃燒淨化 成水及二氧化碳為主的物質，燃燒後之淨化氣流由該第二 熱交換器（22)及該第一熱交換器（21)進行熱回收之後，對 外排放；其中，該直燃式焚化爐（40)與第二熱交換器（22) 之組合可稱為恢復式直燃焚化爐（Recuperative Thermal Oxidizer)，但由於該第二熱交換器（22)及該第一熱交換器 (21)進行熱回收後，所排放之淨化氣流溫度仍甚高（245°C 以上），足堪再加以熱回收利用。 【新型内容】 本創作之主要目的，係欲提供一種揮發性有機廢氣處 理系統之節能裝置，而具有增設一熱交換器俾以節能之功 效。 為達上述功效，本創作之結構特徵，係包括有： 一濃縮器，至少區分有一吸附區及一脫附區； 一第一風機，設置於該濃縮器之吸附進氣管或吸附排 氣管； M373235 一第二風機，設置於該濃縮器之脫附進氣管或脫附排 氣管； 一直燃式焚化爐，設置於該濃縮器之脫附排氣管下游 端’而連接有一焚化排氣管； 一第一熱交換器，令該脫附進氣管由該焚化排氣管之 中游段回收熱能； 一第二熱交換器，令該脫附排氣管之下游段由該焚化 排氣管之上游段回收熱能；以及 一第三熱交換器，令該脫附排氣管之上游段由該焚化 排氣管之下游段回收熱能者。 其中，該直燃式焚化爐亦可於燃燒室上游端增設觸媒 床’而成為觸媒直燃式焚化爐（Catalytic Recuperative "Thermal .Oxidizer)。 此外，該濃縮器為轉輪式濃縮器或轉環式濃縮器。另’ 該第一熱交換器、第二熱交換器與第三熱交換器為管殼式 或板.式熱交換器。又，進一步於該濃縮器之脫附區與吸附 區之間增加一冷卻區（Cooling Zone ; Purge Zone ;又稱隔 離區），而於其冷卻進氣管連接有冷卻氣源，且將其冷卻排 氣管連接至該脫附進氣管之上游，並可作為脫附氣源。 【實施方式】 首先，請參閱第二圖所示，本創作係包括有： 一濃縮器（30)，可為圖示之轉輪式濃縮器或圖未示之 轉ί哀式濃縮器，而至少區分有一吸附區（31)及一脫附區 (32)； 一第一風機⑴），設置於該濃縮器（30)之吸附進氣管 -6- M373235 (311)或吸附排氣管（312); 一第二風機（12)，設置於該濃縮器（30)之脫附進氣管 (321)或脫附排氣管（322); 一直燃式焚化爐（40)，設置於該濃縮器（30)之脫附排 氣管（322)下游端，而連接有一焚化排氣管（41); 一第一熱交換器（21)，令該脫附進氣管（321)由該焚化 排氣管（41)之中游段回收熱能； 一第二熱交換器（22)，令該脫附排氣管（322)之下游段 由該焚化排氣管（41)之上游段回收熱能；以及 一第三熱交換器（23)，令該脫附排氣管（322)之上游段 由該焚化排氣管（41)之下游段回收熱能者。 此外，該第一熱交換器（21)、第二熱交換器（22)與第 三熱交換器（23)為管殼式或板式熱交換器；又，進一步於 該濃縮器（30)之脫附區（32)與吸附區（31)之間增加一冷卻 區（33)，該冷卻區（33)乃具有隔離、冷卻與熱回收之功能， 而於其冷卻進氣管（331)連接有冷卻氣源（34)，且將其冷卻 排氣管（332)連接至該脫附進氣管（321)之上游，而成為脫 附氣流之氣源。 基於如是之構成，本創作係較習知技術增設一第三熱 交換器（23)，而將經該直燃式焚化爐（40)焚化後之淨化氣 流，進行第三度之熱回收再對外排放，根據實機之測試結 果，可將淨化氣流最終之排放溫度，再增設該第三熱交換 器（23)之後，由習知技術之245°C降低至158°C ;而此階段 所回收之熱能，則用以將脫附後之濃縮氣流進行本創作所 增添之節能加熱，把濃縮氣流先由習知技術之71°C升溫至 M373235 155°C，而將經過第二熱交換器（22)後之濃縮氣流，再由習 知技術之480°C升溫至545°C ;是以，本創作可將導入焚化 爐之濃縮氣流升溫約6 5 °C，進而節省焚化爐所需耗費之燃 料（能源），具有增設一熱交換器俾以節能之功效。 綜上所述’本創作所揭示之構造，為昔所無，且確能 達到功效之增進’並具可供產業利用性，完全符合新型專 利要件，祈凊貴審查委員核賜專利，以勵創新，無任德感。 惟’上述所揭露之圖式、說明，僅為本創作之較佳實 施例，大凡熟悉此項技藝人士，依本案精神範疇所作之修 飾或等效變化，仍應包括在本案申請專利範圍内。 M373235 【圖式簡單說明】 第一圖係習知揮發性有機廢氣處理系統之結構說明圖。 第二圖係本創作之結構說明圖。 【主要元件符號說明】 (11) 第一風機 (12) 第二風機 (21) 第一熱交換器 (22) 第二熱交換器 (23) 第三熱交換器 (30) 濃縮器 (31) 吸附區 (311) 吸附進氣管 (312) 吸附排氣管 (32) 脫附區 (321) 脫附進氣管 (322) 脫附排氣管 (33) 冷卻區 (331) 冷卻進氣管 (332) 冷卻排氣管 (34) 冷卻氣源 (40) 直燃式焚化爐 (41) 焚化排氣管M373235 V. New description: [New technical field] This is an energy-saving device for a volatile organic waste gas treatment system, especially a heat exchanger that adds a heat exchanger to incinerate the incinerator and reheat it. The designer of the external emissions. [Prior Art] According to the widely used organic solvents in life and production, they are highly volatile, so they are also known as Volatile Organic Compounds (VOCs). Most VOCs are toxic to human body and must be treated. The incineration method is one of the treatment methods of VOCs, and the removal rate of VOCs under appropriate conditions can reach over 99%. The products after combustion are usually water, carbon dioxide, nitrogen oxides, sulfur oxides, etc., so it is effective. A method of treating VOCs contained in exhaust gas; however, a Rotor type rotary concentrator, a Carousel type rotary concentrator or a Fluidized bed concentrator is generally used first. The VOCs exhaust gas is concentrated, and the concentrated VOCs waste gas is sent to the incinerator for purification treatment, and the VOCs are cleaved into harmless water and carbon dioxide by using three successive procedures of adsorption-concentration desorption and incineration, and the incinerator is lifted by the concentrator. Incineration efficiency. The secondary press, rotary or rotary concentrator is combined with the volatile organic waste gas treatment system of the incinerator. Its equipment characteristics are suitable for handling high flow rate (above l〇〇〇〇Nm3/hr) and medium and low pollutant concentration (l〇 〇〇ppmv@solvent below) and VOCs containing multi-species; among them, rotary (or rotary) concentrators can usually be divided into larger adsorption zones (Adsorption zone; Process zone) and smaller -3- The desorption zone (Regeneration zone; also known as the regeneration zone) of M373235, or the cooling zone (Cool ing zone; Purge zone; further added between the desorption zone and the adsorption zone) Known as the isolation zone; the area ratio of the three can be 3:1:1 or 5:2:1 or 6:1:1 or 10:1:1 or other ratio; and the runner (or swivel) The matrix is composed of some specific solid substrate (Substrate) coated with a layer of adsorbent powder. The substrate is made of ceramic or glass or activated carbon fiber paper. The ceramic fiber is resistant to high temperature and heat. Highly versatile, washable, non-flammable and acid and alkali resistant With, depending on the type of adsorbent odor gas components to be treated varies, generally can be activated carbon or zeolites. Thus, the runner (or the swivel) is rotated by the geared motor (1~10RPH; most of it is 2~6RPH), and the runner (or the swivel) is located in the adsorption zone. The adsorption process of the first stage is carried out, and the exhaust gas of the VOCs is adsorbed at normal temperature, and the purified gas is directly discharged to the atmosphere; and with the rotation of the runner (or the rotating ring), the adsorbent after the adsorption of the VOCs is turned to the off When the area is attached, the second stage of the desorption process is entered. The hot air required for the desorption process is the hot air after the heat exchange between the preheated air at the exit of the cooling zone and the back end incinerator (about 160~300°). C; most of the 180~220 °C) to provide, by the hot air from the sorbent into the desorption zone to concentrate and desorb the organic matter, the concentration of the outflow pollutant is about 5 to 20 times the inflowing exhaust gas Left and right, and the desorbed organic matter can be incinerated in the third stage incinerator at a high temperature (above 600 ° C; if it is a catalytic direct-fired furnace, 200 to 450 ° C), so that the subsequent exhaust gas treatment can be reduced. Unit size and save on initial and operating costs. M373235 However, as shown in the first figure, the conventional volatile organic waste gas treatment system processes the volatile organic waste gas by pumping a volatile organic waste gas through a first wheel (11). The adsorption zone (31) of the device (30) causes the organic matter in the volatile organic waste gas to be adsorbed by the adsorbent located in the adsorption zone (31), and the purified gas after the adsorption treatment is discharged through the first fan (11); Thereafter, when the adsorbent having adsorbed the volatile organic waste gas is transferred to the desorption zone (32), the desorbed gas stream heated by the first heat exchanger (21) is pumped through a second fan (12). The organic matter adsorbed by the adsorbent is desorbed into the concentrated gas stream by heat, and the concentrated gas stream is further guided to a second heat exchanger (22) for preheating, and is introduced into the constant combustion incinerator (40) for purification and purification into water. And the carbon dioxide-based substance, after the combustion purified gas stream is heat-recovered by the second heat exchanger (22) and the first heat exchanger (21), and discharged to the outside; wherein the direct-fired incinerator (40) ) in combination with the second heat exchanger (22) It is called a Recuperative Thermal Oxidizer, but after the heat recovery of the second heat exchanger (22) and the first heat exchanger (21), the temperature of the purified purge gas is still very high ( More than 245 ° C), can be reused for heat recovery. [New content] The main purpose of this creation is to provide an energy-saving device for a volatile organic waste gas treatment system, and to add a heat exchanger to save energy. In order to achieve the above effects, the structural features of the present invention include: a concentrator that distinguishes at least one adsorption zone and one desorption zone; a first fan disposed in the concentrator suction adsorption pipe or the adsorption exhaust pipe M373235 a second fan disposed in the desorbing or desorbing exhaust pipe of the concentrator; a constant-burning incinerator disposed at a downstream end of the desorbing exhaust pipe of the concentrator and connected to an incineration row a first heat exchanger for recovering thermal energy from a portion of the incineration exhaust pipe; a second heat exchanger for causing a downstream portion of the desorbed exhaust pipe to be incinerated The upstream section of the trachea recovers thermal energy; and a third heat exchanger causes the upstream section of the desorbed exhaust pipe to recover heat from the downstream section of the incineration exhaust pipe. Among them, the direct-fired incinerator can also be added to the catalyst bed at the upstream end of the combustion chamber to become a Catalytic Recuperative "Thermal.Oxidizer. In addition, the concentrator is a rotary concentrator or a rotary concentrator. Further, the first heat exchanger, the second heat exchanger and the third heat exchanger are a shell-and-tube type heat exchanger. Further, a cooling zone (Cooling Zone; Purge Zone; also referred to as an isolation zone) is further added between the desorption zone and the adsorption zone of the concentrator, and a cooling gas source is connected to the cooling inlet pipe and cooled. An exhaust pipe is connected upstream of the desorption intake pipe and serves as a source of desorption gas. [Embodiment] First, as shown in the second figure, the creation includes: a concentrator (30), which can be a rotary concentrator as shown or a condensed concentrator not shown. At least one adsorption zone (31) and one desorption zone (32) are distinguished; a first fan (1)) is disposed on the adsorption inlet pipe -6-M373235 (311) or the adsorption exhaust pipe of the concentrator (30) ( 312); a second fan (12), a desorption intake pipe (321) or a desorption exhaust pipe (322) disposed in the concentrator (30); a constant combustion incinerator (40) disposed at the The concentrator (30) is detached from the downstream end of the exhaust pipe (322), and is connected with an incineration exhaust pipe (41); a first heat exchanger (21), the desorption intake pipe (321) is Recovering thermal energy from the upstream portion of the incineration exhaust pipe (41); a second heat exchanger (22) for recovering thermal energy from the upstream portion of the incineration exhaust pipe (41) And a third heat exchanger (23) such that the upstream section of the desorption exhaust pipe (322) recovers heat from the downstream section of the incineration exhaust pipe (41). In addition, the first heat exchanger (21), the second heat exchanger (22) and the third heat exchanger (23) are shell-and-tube heat exchangers; further, further to the concentrator (30) A cooling zone (33) is added between the desorption zone (32) and the adsorption zone (31). The cooling zone (33) has the functions of isolation, cooling and heat recovery, and is connected to the cooling intake pipe (331). There is a cooling air source (34), and its cooling exhaust pipe (332) is connected upstream of the desorption intake pipe (321) to become a source of desorption gas flow. Based on the composition of the present invention, the third heat exchanger (23) is added to the prior art, and the purified gas stream incinerated by the direct-fired incinerator (40) is subjected to a third degree of heat recovery. Emission, according to the test result of the actual machine, the final discharge temperature of the purified gas stream can be reduced to 158 ° C by the conventional technology after adding the third heat exchanger (23); and recovered at this stage. The heat energy is used to carry out the energy-saving heating added by the present invention after the desorption of the concentrated gas stream, and the concentrated gas stream is first heated from the conventional technology at 71 ° C to M373235 155 ° C, and will pass through the second heat exchanger ( 22) The concentrated gas stream is then heated to 545 °C by the conventional technology at 480 ° C. Therefore, the concentrated gas stream introduced into the incinerator can be heated to about 65 ° C, thereby saving the cost of the incinerator. Fuel (energy), with the addition of a heat exchanger to save energy. In summary, the structure disclosed in this creation is nothing for the past, and it can indeed achieve the improvement of efficacy. It is also available for industrial use, and it fully complies with the new patent requirements. Innovation, no sense of morality. However, the drawings and descriptions disclosed above are only preferred embodiments of the present invention. Those who are familiar with the art, and the modifications or equivalent changes made in accordance with the spirit of the case should still be included in the scope of the patent application. M373235 [Simple description of the drawings] The first figure is a structural explanatory diagram of a conventional volatile organic waste gas treatment system. The second picture is a structural illustration of the creation. [Explanation of main component symbols] (11) First fan (12) Second fan (21) First heat exchanger (22) Second heat exchanger (23) Third heat exchanger (30) Concentrator (31) Adsorption zone (311) Adsorption inlet pipe (312) Adsorption exhaust pipe (32) Desorption zone (321) Desorption intake pipe (322) Desorption exhaust pipe (33) Cooling zone (331) Cooling intake pipe (332) Cooling exhaust pipe (34) Cooling gas source (40) Direct-fired incinerator (41) Incineration exhaust pipe