External heating type evaporator
An evaporator and external heating technology, applied in the field of external heating evaporators, can solve the problems of difficult cleaning and low circulation speed of the heating chamber of the evaporation chamber
Inactive Publication Date: 2015-02-25
常州互联天健信息科技有限公司
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Problems solved by technology
Most of the existing evaporators are central standard circulation tube evaporators. This type of evaporator has a compact structure and a low circulation speed, generally below 0.4-0.5m / s, and the heating chamber of the evaporation chamber is not easy to clean
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[0011] like figure 1 The shown external heat evaporator includes a heating chamber 1 and a separation chamber 2, the separation chamber 2 is located at the upstream end of the heating chamber 1, the bottom of the heating chamber 1 and the separation chamber 2 The bottom is connected by a circulation pipe 3, a number of heating pipes 4 are arranged in the heating chamber 1, a heating steam inlet 5 and a hot raw material outlet 6 are arranged on the upper part of the heating chamber 1, and a Raw material liquid inlet 7 and condensed water outlet 8, the bottom of the separation chamber 2 is provided with a feed port 9, the top of the separation chamber 2 is provided with a secondary steam outlet 10, and the bottom of the separation chamber 2 is also provided with a finishing Liquid 11 is exported. The aspect ratio of the heating tube 4 is 50-100:1.
[0012] The present invention is simple in structure, and its heating pipe is longer, and the length-diameter ratio of heating pip...
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The invention discloses an external heating type evaporator. The external heating type evaporator comprises a heating chamber and a separation chamber, wherein the separation chamber is located at the upstream end of the heating chamber; the bottom of the heating chamber is connected with the bottom of the separation chamber by a circulating pipe; the heating chamber is internally provided with a plurality of heating pipes; a heating steam inlet and a hot raw material outlet are formed in the upper part of the heating chamber; a raw material liquid inlet and a condensed water outlet are formed in the lower part of the heating chamber; a feeding hole is formed in the lower part of the separation chamber; a secondary steam outlet is formed in the top of the separation chamber; and a finished liquid outlet is further formed in the bottom of the separation chamber. According to the external heating type evaporator, the heating pipes are longer and the heating chamber is connected with the separation chamber by the circulating pipe; and the solution in the circulating pipe is not heated by steam and the density of the solution is greater than that of the solution in the heating pipes, so that the solution can do circulating movement of descending along the circulating pipe and ascending along the heating pipes, and the circulating speed can be up to be 1.5m / s.
Description
technical field [0001] The invention relates to the field of evaporators, in particular to an external heating evaporator. Background technique [0002] Evaporation is a unit operation that uses heating to heat a solution containing a non-volatile solute to a boiling state, so that part of the solvent is vaporized and removed, thereby increasing the concentration of the solute in the solvent. Most of the existing evaporators are central standard circulation tube evaporators. This type of evaporator has a compact structure and a low circulation speed, generally below 0.4-0.5m / s, and the heating chamber of the evaporation chamber is not easy to clean. Contents of the invention [0003] In order to overcome the disadvantages of the above-mentioned technical problems, the present invention provides an external heating evaporator with fast circulation speed and easy cleaning. [0004] The technical scheme that solves the above-mentioned technical problem is as follows: [000...
Claims
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IPC IPC(8): B01D1/00B01D1/12
Inventor 庞小刚
Owner 常州互联天健信息科技有限公司