CN112146511A - Treatment method based on foreign matters in condensation recovery system - Google Patents
Treatment method based on foreign matters in condensation recovery system Download PDFInfo
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- CN112146511A CN112146511A CN202011050877.3A CN202011050877A CN112146511A CN 112146511 A CN112146511 A CN 112146511A CN 202011050877 A CN202011050877 A CN 202011050877A CN 112146511 A CN112146511 A CN 112146511A
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- Prior art keywords
- heat exchanger
- resin
- hot air
- heating
- heated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G13/00—Appliances or processes not covered by groups F28G1/00 - F28G11/00; Combinations of appliances or processes covered by groups F28G1/00 - F28G11/00
- F28G13/005—Appliances or processes not covered by groups F28G1/00 - F28G11/00; Combinations of appliances or processes covered by groups F28G1/00 - F28G11/00 cleaning by increasing the temperature of heat exchange surfaces
Abstract
The invention relates to the technical field of removal of resin on fins in a heat exchanger, in particular to a treatment method based on foreign matters in a condensation recovery system, which is used for solving the problems of time and labor consumption and low removal efficiency of removing desublimed resin on the fins of the heat exchanger in the prior art. The invention comprises the following steps: the method comprises the following steps: stopping the water circulation device on the heat exchanger from circulating the water in the heat exchanger; step two: heating the resin in the heat exchanger by adopting hot air until the resin is heated and sublimated, and falling off from the heat exchanger, and blowing the heated resin out of the heat exchanger along with the hot air to ensure that a channel is smooth; step three: and stopping heating the heat exchanger by hot air until the resin on the heat exchanger is treated, and restarting the water circulating device. According to the properties of the resin, the resin in the heat exchanger is heated by hot air, the resin heated to a certain temperature can fall off from the heat exchanger and is blown out of the heat exchanger along the hot air, so that the channel is smooth, and the resin on the fins of the heat exchanger is removed more efficiently.
Description
Technical Field
The invention relates to the technical field of removal of resin on fins in a heat exchanger, in particular to a treatment method based on foreign matters in a condensation recovery system.
Background
The condensation recovery system is used for recovering a solvent, waste gas of the condensation recovery system is an organic solvent, the organic solvent contains resin impurities, a heat exchanger is in an operating state in the production process, circulating cooling water cools a biogas, the resins can be desublimated when the temperature of the biogas is reduced to about zero DEG C by the heat exchanger in the cooling process, the resins can be attached to fins of the heat exchanger, a thick layer of resins is formed after accumulation for a long time, pipelines of the heat exchanger are blocked and cannot be used, and at the moment, the resin impurities on the fins need to be removed.
In the prior art, when resin impurities desublimed on fins are removed, the fins are usually taken down, and then resin is scraped off by a tool, so that time and labor are consumed, and the efficiency of removing the resin impurities is low. Therefore, a treatment method with higher resin removal efficiency on the fins is urgently needed.
Disclosure of Invention
Based on the above problems, the present invention aims to: the method is used for solving the problems that in the prior art, the removal of desublimed resin on the fins of a heat exchanger consumes time and labor and is low in removal efficiency. According to the properties of the resin, the resin in the heat exchanger is heated by hot air, the resin heated to a certain temperature can fall off from the heat exchanger and is blown out of the heat exchanger along the hot air, so that the channel is smooth, and the resin on the fins of the heat exchanger is removed more efficiently.
The invention specifically adopts the following technical scheme for realizing the purpose:
a treatment method based on foreign matters appearing in a condensation recovery system comprises the following steps:
the method comprises the following steps: stopping the water circulation device on the heat exchanger from circulating the water in the heat exchanger;
step two: heating the resin in the heat exchanger by adopting hot air until the resin is heated and sublimated, and falling off from the heat exchanger, and blowing the heated resin out of the heat exchanger along with the hot air to ensure that a channel is smooth;
step three: and stopping heating the heat exchanger by hot air until the resin on the heat exchanger is treated, and restarting the water circulating device.
Preferably, the heat conducting oil in the heating box is used for indirectly heating in the step two.
Preferably, the heating temperature for the resin is 100-.
The invention has the following beneficial effects:
(1) according to the properties of the resin, the resin in the heat exchanger is heated by hot air, the resin heated to a certain temperature can fall off from the heat exchanger and is blown out of the heat exchanger along the hot air, so that the channel is smooth, and the resin on the fins of the heat exchanger is removed more efficiently.
(2) The waste gas in the invention is organic solvent, is inflammable and explosive, and is safer by indirect heating through the heat conduction oil in the heating box.
Drawings
FIG. 1 is a schematic view of a connection structure of a heating box and a heat exchanger according to the present invention;
reference numerals: 1 heating box, 2 heat exchanger, 3 channels.
Detailed Description
For a better understanding of the present invention by those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and the following examples.
Example (b):
as shown in fig. 1, a method for treating foreign matters in a condensation recovery system comprises the following steps:
the method comprises the following steps: stopping the water circulation device on the heat exchanger 2 from circulating the water in the heat exchanger 2;
step two: heating the resin in the heat exchanger 2 by using hot air until the resin is heated and sublimated, and dropping off from the heat exchanger 2, and blowing out of the heat exchanger 2 along with the hot air to ensure that the channel 3 is smooth;
step three: and stopping heating the heat exchanger 2 by hot air until the resin on the heat exchanger 2 is treated, and restarting the water circulating device.
The working principle is as follows: the foreign matter refers to resin material or simple substance mixture, the chemical property of the resin can be sublimated into macromolecular granular gas at the temperature of 100-200 ℃, the resin can be re-sublimated into the resin after the temperature is reduced to normal temperature, and the resin can be dissolved in the organic solvent. When the resin on the fins of the heat exchanger 2 is accumulated to a certain degree and needs to be cleaned, the thick layer of resin in the heat exchanger 2 is heated by hot air, a water circulation device of the heat exchanger 2 needs to be closed before the resin is heated, and when the resin is heated to a sublimable temperature (generally, the heating temperature of the resin is 100-plus-200 ℃), the resin falls off from the heat exchanger 2 and is blown out of the heat exchanger 2 along the hot air, so that the channel 3 is smooth, and the resin on the fins of the heat exchanger 2 can be cleaned. The resin is removed by heating with hot air by utilizing the property that the chemical property of the resin can be sublimated into macromolecular granular gas at the temperature of 100-200 ℃, and the treatment mode has higher efficiency compared with the prior art.
Preferably, the heat conducting oil in the heating box 1 is used for indirectly heating in the step two. Waste gas is organic solvent, and is flammable and explosive, and is safer through indirect heating of the conduction oil in the heating box 1.
The above is an embodiment of the present invention. The embodiments and specific parameters in the embodiments are only for the purpose of clearly illustrating the verification process of the invention and are not intended to limit the scope of the invention, which is defined by the claims, and all equivalent structural changes made by using the contents of the specification and the drawings of the present invention should be covered by the scope of the present invention.
Claims (3)
1. A treatment method based on foreign matters appearing in a condensation recovery system is characterized in that: the method comprises the following steps:
the method comprises the following steps: stopping the water circulation device on the heat exchanger (2) from circulating the water in the heat exchanger (2);
step two: heating the resin in the heat exchanger (2) by adopting hot air until the resin is heated and sublimated, and falling off from the heat exchanger (2), and blowing out the resin from the heat exchanger (2) along with the hot air to ensure that the channel (3) is smooth;
step three: and stopping heating the heat exchanger (2) by hot air until the resin on the heat exchanger (2) is treated, and restarting the water circulating device.
2. The method for treating foreign matters in a condensation recovery system according to claim 1, wherein the method comprises the following steps: and in the second step, the heating is indirectly carried out through the heat conduction oil in the heating box (1).
3. The method for treating foreign matters in a condensation recovery system according to claim 1, wherein the method comprises the following steps: the heating temperature for the resin is 100-200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011050877.3A CN112146511A (en) | 2020-09-29 | 2020-09-29 | Treatment method based on foreign matters in condensation recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011050877.3A CN112146511A (en) | 2020-09-29 | 2020-09-29 | Treatment method based on foreign matters in condensation recovery system |
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| Publication Number | Publication Date |
|---|---|
| CN112146511A true CN112146511A (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011050877.3A Pending CN112146511A (en) | 2020-09-29 | 2020-09-29 | Treatment method based on foreign matters in condensation recovery system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993014364A1 (en) * | 1992-01-15 | 1993-07-22 | A. Ahlstrom Corporation | Method and apparatus for removing a deposit from the inlet duct wall of a gas cooler |
| CN101543390A (en) * | 2008-03-26 | 2009-09-30 | 迈科机械制造有限及两合公司 | Heat reclaim device with self-cleaning |
| CN101882566A (en) * | 2006-08-24 | 2010-11-10 | 东京毅力科创株式会社 | Method for removing metal attachments |
| CN205324295U (en) * | 2015-12-30 | 2016-06-22 | 上海夏普电器有限公司 | Condenser grease blowdown device |
| US20180328680A1 (en) * | 2017-05-11 | 2018-11-15 | Larry Baxter | Apparatus and Method for Intrachannel Defouling of a Heat Exchanger using Induction Heaters |
| CN209465434U (en) * | 2018-11-26 | 2019-10-08 | 陕西石羊农业科技股份有限公司 | A kind of animal fat pipe dredging device |
| CN209550190U (en) * | 2018-10-26 | 2019-10-29 | 创建节能玻璃（贵州）有限公司 | For making the decontamination cleaning device of hollow glass |
| CN110940227A (en) * | 2019-12-18 | 2020-03-31 | 彭香莲 | Heat exchanger with self-cleaning function |
-
2020
- 2020-09-29 CN CN202011050877.3A patent/CN112146511A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993014364A1 (en) * | 1992-01-15 | 1993-07-22 | A. Ahlstrom Corporation | Method and apparatus for removing a deposit from the inlet duct wall of a gas cooler |
| CN101882566A (en) * | 2006-08-24 | 2010-11-10 | 东京毅力科创株式会社 | Method for removing metal attachments |
| CN101543390A (en) * | 2008-03-26 | 2009-09-30 | 迈科机械制造有限及两合公司 | Heat reclaim device with self-cleaning |
| CN205324295U (en) * | 2015-12-30 | 2016-06-22 | 上海夏普电器有限公司 | Condenser grease blowdown device |
| US20180328680A1 (en) * | 2017-05-11 | 2018-11-15 | Larry Baxter | Apparatus and Method for Intrachannel Defouling of a Heat Exchanger using Induction Heaters |
| CN209550190U (en) * | 2018-10-26 | 2019-10-29 | 创建节能玻璃（贵州）有限公司 | For making the decontamination cleaning device of hollow glass |
| CN209465434U (en) * | 2018-11-26 | 2019-10-08 | 陕西石羊农业科技股份有限公司 | A kind of animal fat pipe dredging device |
| CN110940227A (en) * | 2019-12-18 | 2020-03-31 | 彭香莲 | Heat exchanger with self-cleaning function |
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Application publication date: 20201229 |