TWI606859B - Vacuum distillation apparatu with multiple heat sources and control method thereof - Google Patents
Vacuum distillation apparatu with multiple heat sources and control method thereof Download PDFInfo
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Description
本揭露中所述實施例內容是有關於一種真空蒸餾裝置及其控制方法。特別地，本揭露中所述實施例內容是有關於一種多熱源真空蒸餾裝置及其控制方法。 The contents of the embodiments described in the present disclosure relate to a vacuum distillation apparatus and a control method therefor. In particular, the contents of the embodiments described in the present disclosure relate to a multi-heat source vacuum distillation apparatus and a control method therefor.
蒸餾主要利用混合液體或液-固體中各組分沸點不同，使低沸點組分蒸發，再冷凝以分離整個組分的單元操作過程，因此是蒸發和冷凝兩種單元操作的聯合。相較於其他的分離方法，蒸餾相對較不需使用其它溶劑，故降低引入新的雜質等優點。 Distillation mainly utilizes a mixture of liquid or liquid-solid components with different boiling points to evaporate the low-boiling components, and then condense to separate the unit operations of the entire component, thus being a combination of two unit operations of evaporation and condensation. Compared to other separation methods, distillation requires relatively little use of other solvents, thereby reducing the advantages of introducing new impurities.
真空蒸餾(Vacuum Distilation)則是在減壓的情況下進行，一般用於分離在常壓下加熱至沸點時易於分解的物質，以降低蒸餾溫度並提高分離效率。常用於化學，有機，金屬化合物，金屬醇鹽等的分離提純。真空蒸餾也用於某些品種特種氣體的深度提純。 Vacuum Distilation is carried out under reduced pressure, and is generally used to separate substances which are easily decomposed when heated to a boiling point under normal pressure to lower the distillation temperature and improve the separation efficiency. It is commonly used for separation and purification of chemical, organic, metal compounds, metal alkoxides and the like. Vacuum distillation is also used for the deep purification of certain types of specialty gases.
降低沸騰時的壓力，可以使物質的蒸汽壓，在較低的溫度下就開始沸騰，蒸餾作用即可順利進行。然而，真空 蒸餾必須提供熱源以加熱。而部份的蒸餾設備在剛開始運轉或在部份的運轉條件下，其效率大幅受限，如何提供一種高效率的真空蒸餾裝置，長久以來一直是業界所亟欲解決之課題。 By lowering the pressure at the time of boiling, the vapor pressure of the substance can be started to boil at a lower temperature, and the distillation can proceed smoothly. However, vacuum Distillation must provide a heat source to heat. However, some distillation equipments have been greatly limited in efficiency at the beginning of operation or under partial operating conditions. How to provide a high-efficiency vacuum distillation apparatus has long been a problem that the industry has been trying to solve.
有鑒於此，本揭露內容提出一種多熱源真空蒸餾裝置。 In view of this, the present disclosure proposes a multi-heat source vacuum distillation apparatus.
本揭露內容之一實施態樣是有關於一種多熱源真空蒸餾裝置，包含有一蒸餾桶用以蒸餾一物料，一冷凝器連接於蒸餾桶，一節流閥連接於冷凝器，一多熱源蒸發器模組連接於節流閥，以及一壓縮機連接於多熱源蒸發器模組以及冷凝器。其中，多熱源蒸發器模組包含複數個蒸發器，以根據工作環境選擇蒸發器其中之一進行熱交換，以提供蒸餾桶蒸餾物料所需之熱能。 One embodiment of the present disclosure relates to a multi-heat source vacuum distillation apparatus comprising a distillation barrel for distilling a material, a condenser connected to the distillation barrel, a throttle valve connected to the condenser, and a multi-heat source evaporator mold. The group is connected to the throttle valve, and a compressor is connected to the multi-heat source evaporator module and the condenser. Wherein, the multi-heat source evaporator module comprises a plurality of evaporators for selecting one of the evaporators for heat exchange according to the working environment to provide the heat energy required for distilling the contents of the distillation tub.
其中，上述之多熱源蒸發器模組包含一第一蒸發器、一第二蒸發器與一第三蒸發器，其中第一蒸發器吸收來自於蒸餾桶所蒸發之物料的熱量，第二蒸發器吸收一高溫廢液的熱量或機房的高溫空氣，而第三蒸發器吸收環境空氣的熱量。 Wherein, the multi-heat source evaporator module comprises a first evaporator, a second evaporator and a third evaporator, wherein the first evaporator absorbs heat from the material evaporated by the distillation tub, and the second evaporator The heat of a high-temperature waste liquid or the high-temperature air of the machine room is absorbed, and the third evaporator absorbs the heat of the ambient air.
在一或多個實施例中，多熱源真空蒸餾裝置更包含有一儲水容器連接於第一蒸發器，以將冷卻後的蒸餾桶所蒸發之物料加以儲存。 In one or more embodiments, the multi-heat source vacuum distillation apparatus further includes a water storage tank connected to the first evaporator to store the material evaporated by the cooled distillation tub.
在一或多個實施例中，冷卻後的蒸餾桶所蒸發之物料係水。 In one or more embodiments, the material evaporated by the cooled distillation tub is water.
在一或多個實施例中，多熱源真空蒸餾裝置更包 含有一真空泵，連接於儲水容器，以提供蒸餾桶所需之真空度。 In one or more embodiments, the multi-heat source vacuum distillation apparatus is further included A vacuum pump is included that is connected to the water storage vessel to provide the vacuum required for the distillation tub.
本揭露內容之另一實施態樣是有關於一種多熱源真空蒸餾裝置的控制方法，包含有下列步驟，啟動一熱泵，判斷一蒸餾桶是否有蒸餾桶冷凝回收熱源，若判斷無蒸餾桶冷凝回收熱源，進一步判斷是否有高溫廢液回收熱源或機房內高溫空氣回收熱源；以及若判斷無高溫廢液回收熱源與機房內高溫空氣回收熱源，利用空氣回收熱源，則啟動一第三蒸發器循環以進行蒸餾桶中物料的蒸餾。 Another embodiment of the present disclosure relates to a method for controlling a multi-heat source vacuum distillation apparatus, comprising the steps of: starting a heat pump, determining whether a distillation barrel has a distillation barrel for condensing and recovering a heat source, and judging that no distillation barrel is condensed and recovered. The heat source further determines whether there is a high-temperature waste liquid recovery heat source or a high-temperature air recovery heat source in the equipment room; and if it is judged that the high-temperature waste liquid recovery heat source and the high-temperature air recovery heat source in the equipment room use the air recovery heat source, a third evaporator cycle is started Distillation of the material in the distillation tank is carried out.
在上述之啟動一熱泵之前，更包含有啟動一真空泵，以提供蒸餾桶所需之一真空度。 Before starting a heat pump, the vacuum pump is further activated to provide a vacuum required for the distillation tub.
在一或多個實施例中，多熱源真空蒸餾裝置的控制方法更包含有判斷蒸餾桶之物料是否達到所需的濃度，若尚未達到所需的濃度，持續進行蒸餾。 In one or more embodiments, the control method of the multi-heat source vacuum distillation apparatus further includes determining whether the material of the distillation tub reaches a desired concentration, and if the desired concentration has not been reached, the distillation is continued.
在一或多個實施例中，多熱源真空蒸餾裝置的控制方法，當判斷一蒸餾桶是否有蒸餾桶冷凝回收熱源，若已具有蒸餾桶冷凝回收熱源，則啟動一第一蒸發器循環，以進行蒸餾桶中物料的蒸餾。 In one or more embodiments, the control method of the multi-heat source vacuum distillation apparatus, when determining whether a distillation barrel has a distillation barrel condensing recovery heat source, if there is already a distillation barrel condensation recovery heat source, starting a first evaporator cycle, Distillation of the material in the distillation tank is carried out.
綜上所述，本揭露中的多熱源真空蒸餾裝置及其控制方法可以利用多熱源蒸發器模組適當地選擇合適的熱源進行真空蒸餾裝置的熱量來源，使得真空蒸餾裝置的效率得以提升，更可以降低生產成本，同時可以有效地利用工廠中所產生的額外熱能，維持工作環境的溫度，提高員工的工作效率。 In summary, the multi-heat source vacuum distillation apparatus and the control method thereof in the present disclosure can utilize a multi-heat source evaporator module to appropriately select a suitable heat source to perform heat source of the vacuum distillation apparatus, thereby improving the efficiency of the vacuum distillation apparatus and further improving the efficiency of the vacuum distillation apparatus. It can reduce production costs, and can effectively use the extra heat generated in the factory to maintain the temperature of the working environment and improve the efficiency of employees.
100‧‧‧多熱源真空蒸餾裝置 100‧‧‧Multiple heat source vacuum distillation unit
110‧‧‧冷凝器 110‧‧‧Condenser
120‧‧‧蒸餾桶 120‧‧‧Distilled barrel
130‧‧‧節流閥 130‧‧‧ throttle valve
140‧‧‧多熱源蒸發器模組 140‧‧‧Multiple heat source evaporator module
142‧‧‧第一蒸發器 142‧‧‧First evaporator
144‧‧‧第二蒸發器 144‧‧‧Second evaporator
146‧‧‧第三蒸發器 146‧‧‧ Third evaporator
150‧‧‧壓縮機 150‧‧‧Compressor
160‧‧‧儲水容器 160‧‧‧Water storage container
170‧‧‧真空泵 170‧‧‧Vacuum pump
210~320‧‧‧步驟 210~320‧‧‧Steps
為讓本揭露之上述和其他目的、特徵、優點與實施例能更明顯易懂，所附圖式之說明如下：第1圖是依照本揭露一些實施例所繪示的一種多熱源真空蒸餾裝置示意圖。 The above and other objects, features, advantages and embodiments of the present disclosure will be more apparent and understood. The description of the drawings is as follows: FIG. 1 is a multi-heat source vacuum distillation apparatus according to some embodiments of the present disclosure. schematic diagram.
第2圖是依照本揭露一些實施例所繪示的一種多熱源真空蒸餾裝置的控制方法示意圖。 2 is a schematic view showing a control method of a multi-heat source vacuum distillation apparatus according to some embodiments of the present disclosure.
下文係舉實施例配合所附圖式進行詳細說明，但所提供之實施例並非用以限制本揭露所涵蓋的範圍，而結構運作之描述非用以限制其執行之順序，任何由元件重新組合之結構，所產生具有均等功效的裝置，皆為本揭露所涵蓋的範圍。另外，圖式僅以說明為目的，並未依照原尺寸作圖。為使便於理解，下述說明中相同元件或相似元件將以相同之符號標示來說明。 The following is a detailed description of the embodiments, but the embodiments are not intended to limit the scope of the disclosure, and the description of the structural operation is not intended to limit the order of execution, and any components are recombined. The structure and the device with equal efficiency are all covered by the disclosure. In addition, the drawings are for illustrative purposes only and are not drawn to the original dimensions. For the sake of understanding, the same or similar elements in the following description will be denoted by the same reference numerals.
另外，在全篇說明書與申請專利範圍所使用之用詞(terms)，除有特別註明外，通常具有每個用詞使用在此領域中、在此揭露之內容中與特殊內容中的平常意義。某些用以描述本揭露之用詞將於下或在此說明書的別處討論，以提供本領域技術人員在有關本揭露之描述上額外的引導。 In addition, the terms used in the entire specification and the scope of the patent application, unless otherwise specified, usually have the usual meaning of each word used in the field, in the content disclosed herein and in the special content. . Certain terms used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in the description of the disclosure.
關於本文中所使用之『第一』、『第二』、...等，並非特別指稱次序或順位的意思，亦非用以限定本發明，其僅僅是為了區別以相同技術用語描述的元件或操作而已。 The terms "first", "second", etc., as used herein, are not intended to refer to the order or the order, and are not intended to limit the invention, only to distinguish the elements described in the same technical terms. Or just operate.
其次，在本文中所使用的用詞『包含』、『包括』、 『具有』、『含有』等等，均為開放性的用語，即意指包含但不限於。 Secondly, the terms "including" and "including" are used in this article. "Yes", "include", etc. are all open words, meaning they are included but not limited.
第1圖是依照本揭露一些實施例所繪示的一種多熱源真空蒸餾裝置示意圖。如圖中所示，本發明所揭露之多熱源真空蒸餾裝置100，包含有一蒸餾桶120，其連接一冷凝器110，冷凝器110則連接有一節流閥130，節流閥130連接一多熱源蒸發器模組140，多熱源蒸發器模組140連接一壓縮機150，壓縮機150連接冷凝器110。 1 is a schematic view of a multi-heat source vacuum distillation apparatus according to some embodiments of the present disclosure. As shown in the figure, the multi-heat source vacuum distillation apparatus 100 disclosed in the present invention comprises a distillation barrel 120 connected to a condenser 110, a condenser 110 connected to a throttle valve 130, and a throttle valve 130 connected to a plurality of heat sources. The evaporator module 140, the multi-heat source evaporator module 140 is connected to a compressor 150, and the compressor 150 is connected to the condenser 110.
由於習知的真空蒸餾裝置運轉條件在部分階段會大幅受限，以致處於低能效條件運轉，例如設備剛啟動時對蒸餾桶內物料的加熱階段，由於冷凝器需提供熱量以滿足物料由常溫上升到目標溫度的需求，然而，此時壓縮機所產生的熱量極小，導致蒸餾裝置處於一低效能的運轉條件，因此也增加了蒸餾裝置所需的加熱時間。 Since the operating conditions of the conventional vacuum distillation apparatus are greatly limited in some stages, so as to operate in a low-efficiency condition, for example, the heating stage of the material in the distillation tub just after the start of the equipment, the condenser needs to provide heat to satisfy the rise of the material from normal temperature. The demand to the target temperature, however, at this time the heat generated by the compressor is extremely small, causing the distillation apparatus to be in an inefficient operating condition, thus also increasing the heating time required for the distillation apparatus.
本案之多熱源真空蒸餾裝置100利用壓縮機150的熱力學循環來產生移動熱能的作用，藉由壓縮機150、冷凝器110、節流閥130與多熱源蒸發器模組140的組合有效提高多熱源真空蒸餾裝置100的效率，使得生產成本亦可以因此降低，同時由於有效地利用工廠中所產生的額外熱能，更可降低工作環境的溫度，提高員工的工作效率。 The multi-heat source vacuum distillation apparatus 100 of the present invention utilizes the thermodynamic cycle of the compressor 150 to generate the action of moving thermal energy, and the combination of the compressor 150, the condenser 110, the throttle valve 130 and the multi-heat source evaporator module 140 effectively increases the multi-heat source. The efficiency of the vacuum distillation apparatus 100 can also reduce the production cost, and at the same time, by effectively utilizing the extra heat generated in the factory, the temperature of the working environment can be lowered, and the work efficiency of the employees can be improved.
參閱第1圖，本發明之壓縮機150的管路內充滿冷媒，冷媒蒸氣受壓縮機150壓縮產生了高溫高壓的冷媒蒸氣。當冷媒蒸汽流入冷凝器110後，因排熱而凝結成冷凝液，此時所排出的熱量可有效地加熱蒸餾桶120中的物料，使物料的溫 度上升，以將部份的物料汽化。而冷媒則進一步進入節流閥130，然後進入多熱源蒸發器模組140內蒸發成冷媒蒸氣，而產生吸熱效應。 Referring to Fig. 1, the compressor 150 of the present invention is filled with a refrigerant, and the refrigerant vapor is compressed by the compressor 150 to generate high-temperature and high-pressure refrigerant vapor. When the refrigerant vapor flows into the condenser 110, it condenses into a condensate due to heat removal, and the heat discharged at this time can effectively heat the material in the distillation tub 120 to make the temperature of the material The degree is increased to vaporize part of the material. The refrigerant further enters the throttle valve 130 and then enters the multi-heat source evaporator module 140 to evaporate into a refrigerant vapor, thereby generating an endothermic effect.
多熱源蒸發器模組140的吸熱效應所需的熱源可以是，例如第一蒸發器142所提供的一熱源，蒸餾桶120之汽化的物料的熱量，經由管路進入第一蒸發器142使其溫度降低成為一液體，並進入儲水容器160中儲存。多熱源蒸發器模組140的吸熱效應所需的熱源可以是，例如第二蒸發器144所提供的一熱源，亦即其他的廢回收熱源，可以是製程中所產生的高溫廢液等，將工廠中其他製程所產生多餘的熱量進行回收，例如是機房內高溫空氣回收熱源。多熱源蒸發器模組140的吸熱效應所需的熱源還可以是，例如第三蒸發器146所提供的一熱源，亦即環境空氣熱源，其來自於維持工廠中一般常態的工作溫度所產生的熱源，不僅可以提供多熱源真空蒸餾裝置100同時可以提供員工工作一合適的工作溫度。第三蒸發器146可以吸收此空氣熱源將空氣溫度降低，使更適合工作所需，而將此熱源吸收後進行蒸餾桶120中物料的加熱。 The heat source required for the endothermic effect of the multi-heat source evaporator module 140 may be, for example, a heat source provided by the first evaporator 142, and the heat of the vaporized material of the distillation tub 120 enters the first evaporator 142 via the pipeline. The temperature is lowered into a liquid and stored in the water storage container 160. The heat source required for the heat absorbing effect of the multi-heat source evaporator module 140 may be, for example, a heat source provided by the second evaporator 144, that is, another waste heat recovery source, which may be a high-temperature waste liquid generated in the process, etc. Excess heat generated by other processes in the plant is recovered, such as high temperature air recovery heat sources in the equipment room. The heat source required for the heat absorbing effect of the multi-heat source evaporator module 140 may also be, for example, a heat source provided by the third evaporator 146, that is, an ambient air heat source, which is derived from maintaining a normal normal operating temperature in the factory. The heat source can not only provide multi-heat source vacuum distillation unit 100 but also provide employees with a suitable working temperature. The third evaporator 146 can absorb the air heat source to lower the air temperature to make it more suitable for operation, and absorb the heat source to heat the material in the distillation tub 120.
冷媒蒸氣會再被壓縮機150吸入，重複進行壓縮，以構成一循環迴路。整個循環使得熱量在多熱源蒸發器模組140處被吸收，然後於冷凝器110處被排出以加熱蒸餾桶120中的物料。 The refrigerant vapor is again sucked into the compressor 150 and repeatedly compressed to form a circulation loop. The entire cycle causes heat to be absorbed at the multi-heat source evaporator module 140 and then discharged at the condenser 110 to heat the contents of the distillation tub 120.
本發明之多熱源蒸發器模組140更包含有一真空泵170，以維持蒸餾桶120內所需的真空度，有效地降低蒸餾所需的溫度，進而提高蒸餾的效率。 The multi-heat source evaporator module 140 of the present invention further includes a vacuum pump 170 to maintain the required degree of vacuum in the distillation tub 120, effectively reducing the temperature required for distillation, thereby increasing the efficiency of distillation.
參閱第2圖是依照本揭露一些實施例所繪示的一種多熱源真空蒸餾裝置的控制方法示意圖。如圖所示，本發明之多熱源真空蒸餾裝置的控制方法，在步驟210，濃縮程序開始後，首先步驟220，將真空泵啟動。接著，步驟230，進一步將熱泵啟動。此熱泵及包含有第1圖中的冷凝器110、節流閥130、多熱源蒸發器模組140以及壓縮機150。 2 is a schematic diagram of a control method of a multi-heat source vacuum distillation apparatus according to some embodiments of the present disclosure. As shown in the figure, in the control method of the multi-heat source vacuum distillation apparatus of the present invention, in step 210, after the concentration process is started, first step 220, the vacuum pump is started. Next, in step 230, the heat pump is further activated. The heat pump includes a condenser 110 in FIG. 1 , a throttle valve 130 , a multi-heat source evaporator module 140 , and a compressor 150 .
然後，進入步驟240，判斷蒸餾桶內是否有蒸餾桶冷凝回收熱源。若判斷為是，即蒸餾桶冷凝有回收熱源，則進入步驟250，啟動第一蒸發器循環，使用第一蒸發器進行熱源的回收。若判斷為否，即無蒸餾桶冷凝回收熱源，進入步驟260，進一步判斷是否有其他廢回收熱源，例如是一高溫廢液回收熱源、機房內高溫空氣或其他的可回收熱源。 Then, proceeding to step 240, it is determined whether there is a distillation tank in the distillation tub to condense and recover the heat source. If the determination is YES, that is, the distillation tank condenses the recovered heat source, the process proceeds to step 250, the first evaporator cycle is started, and the heat source is recovered using the first evaporator. If the judgment is no, that is, there is no distillation tank condensing and recovering the heat source, and the process proceeds to step 260 to further determine whether there is another waste heat recovery source, such as a high temperature waste liquid recovery heat source, high temperature air in the equipment room or other recyclable heat source.
若判斷為是，即有其他廢回收熱源，則進入步驟270，啟動一第二蒸發器循環。若判斷為否，即無蒸餾桶冷凝回收熱源，利用環境空氣回收熱源，進入步驟280，啟動一第三蒸發器循環以進行蒸餾桶中物料的蒸餾，亦即以維持一般工作環境溫度所產生之熱量，進行蒸餾桶中物料的蒸餾。 If the determination is yes, that is, there are other waste recovery heat sources, then proceed to step 270 to initiate a second evaporator cycle. If the judgment is no, that is, there is no distillation tank condensing recovery heat source, and the ambient air recovery heat source is used to proceed to step 280 to start a third evaporator cycle to perform distillation of the material in the distillation barrel, that is, to maintain the normal working environment temperature. Heat, the distillation of the material in the distillation tank.
其中真空泵可以提供蒸餾桶所需之一真空度，降低蒸餾所需的溫度，提升蒸餾的效率。 The vacuum pump can provide one degree of vacuum required for the distillation barrel, reduce the temperature required for distillation, and increase the efficiency of distillation.
接著，步驟290，持續判斷蒸餾桶之物料是否達到所需的濃度，若尚未達到所需的濃度，則持續進行蒸餾並重複上述之判斷，以選擇最佳的熱源以及蒸發器循環，以提升多熱源真空蒸餾裝置的效率。 Next, in step 290, it is continuously determined whether the material of the distillation tub reaches the desired concentration. If the desired concentration has not been reached, the distillation is continued and the above judgment is repeated to select the optimal heat source and the evaporator cycle to enhance the increase. The efficiency of the heat source vacuum distillation unit.
當已達到所需的濃度或已達需要的儲水量，進入 步驟300關閉熱泵，步驟310真空泵關閉，以及步驟320結束濃縮程序。 When the required concentration has been reached or the required amount of water has been reached, enter Step 300 turns off the heat pump, step 310 vacuum pump is turned off, and step 320 ends the concentration process.
綜上所述，本揭露中的多熱源真空蒸餾裝置及其控制方法可以利用多熱源蒸發器模組適當地選擇合適的熱源進行真空蒸餾裝置的熱量來源，使得真空蒸餾裝置的效率得以提升，更可以降低生產成本，同時可以有效地利用工廠中所產生的額外熱能，維持工作環境的溫度，提高員工的工作效率。 In summary, the multi-heat source vacuum distillation apparatus and the control method thereof in the present disclosure can utilize a multi-heat source evaporator module to appropriately select a suitable heat source to perform heat source of the vacuum distillation apparatus, thereby improving the efficiency of the vacuum distillation apparatus and further improving the efficiency of the vacuum distillation apparatus. It can reduce production costs, and can effectively use the extra heat generated in the factory to maintain the temperature of the working environment and improve the efficiency of employees.
雖然本揭露已以實施方式揭露如上，然其並非用以限定本揭露，任何本領域具通常知識者，在不脫離本揭露之精神和範圍內，當可作各種之更動與潤飾，因此本揭露之保護範圍當視後附之申請專利範圍所界定者為準。 The present disclosure has been disclosed in the above embodiments, and is not intended to limit the disclosure. Any one of ordinary skill in the art can make various changes and refinements without departing from the spirit and scope of the disclosure. The scope of protection is subject to the definition of the scope of the patent application.
100‧‧‧多熱源真空蒸餾裝置 100‧‧‧Multiple heat source vacuum distillation unit
110‧‧‧冷凝器 110‧‧‧Condenser
120‧‧‧蒸餾桶 120‧‧‧Distilled barrel
130‧‧‧節流閥 130‧‧‧ throttle valve
140‧‧‧多熱源蒸發器模組 140‧‧‧Multiple heat source evaporator module
142‧‧‧第一蒸發器 142‧‧‧First evaporator
144‧‧‧第二蒸發器 144‧‧‧Second evaporator
146‧‧‧第三蒸發器 146‧‧‧ Third evaporator
150‧‧‧壓縮機 150‧‧‧Compressor
160‧‧‧儲水容器 160‧‧‧Water storage container
170‧‧‧真空泵 170‧‧‧Vacuum pump
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| TW105128278A TWI606859B (en) | 2016-09-01 | 2016-09-01 | Vacuum distillation apparatu with multiple heat sources and control method thereof |
| CN201621113841.4U CN206152375U (en) | 2016-09-01 | 2016-10-12 | Multi-heat source vacuum distillation device |
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| CN205235437U (en) * | 2015-11-14 | 2016-05-18 | 封开海蓝化工有限公司 | Vacuum distillation system |
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| TWM467031U (en) * | 2013-07-26 | 2013-12-01 | Yoex Energytek Co Ltd | Compression and circulation system with waste heat recovery and energy-saving mechanisms |
| CN205235437U (en) * | 2015-11-14 | 2016-05-18 | 封开海蓝化工有限公司 | Vacuum distillation system |
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