CN110542346A - device for removing scale of trioxymethylene heat exchanger - Google Patents
device for removing scale of trioxymethylene heat exchanger Download PDFInfo
- Publication number
- CN110542346A CN110542346A CN201911005744.1A CN201911005744A CN110542346A CN 110542346 A CN110542346 A CN 110542346A CN 201911005744 A CN201911005744 A CN 201911005744A CN 110542346 A CN110542346 A CN 110542346A
- Authority
- CN
- China
- Prior art keywords
- pump
- tank
- communicated
- heat exchanger
- alkali adding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical group C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 239000003513 alkali Substances 0.000 claims abstract description 91
- 238000011084 recovery Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000010865 sewage Substances 0.000 claims abstract description 15
- 239000002699 waste material Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 38
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- 230000001105 regulatory effect Effects 0.000 claims description 29
- 238000002156 mixing Methods 0.000 claims description 24
- 230000003068 static effect Effects 0.000 claims description 22
- 238000011033 desalting Methods 0.000 claims description 18
- 238000010612 desalination reaction Methods 0.000 claims description 11
- 230000003472 neutralizing effect Effects 0.000 claims description 11
- 239000007864 aqueous solution Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 6
- 239000001117 sulphuric acid Substances 0.000 claims description 6
- 235000011149 sulphuric acid Nutrition 0.000 claims description 6
- 238000006386 neutralization reaction Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 10
- 238000002360 preparation method Methods 0.000 abstract description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 9
- 239000000126 substance Substances 0.000 description 7
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003113 alkalizing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- GSNUFIFRDBKVIE-UHFFFAOYSA-N DMF Natural products CC1=CC=C(C)O1 GSNUFIFRDBKVIE-UHFFFAOYSA-N 0.000 description 1
- MHABMANUFPZXEB-UHFFFAOYSA-N O-demethyl-aloesaponarin I Natural products O=C1C2=CC=CC(O)=C2C(=O)C2=C1C=C(O)C(C(O)=O)=C2C MHABMANUFPZXEB-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Classifications
-
- 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
- F28G15/00—Details
-
- 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
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- 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
- F28G15/00—Details
- F28G2015/006—Arrangements for processing a cleaning fluid after use, e.g. filtering and recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention provides a device for removing scale of a trioxymethylene heat exchanger, which comprises a steam heating system, an alkali preparation system and a waste liquid recovery system, and can reduce material waste, reduce the pressure of sewage treatment, improve the operation period of equipment, and achieve the purposes of energy saving, consumption reduction, cost reduction and efficiency improvement.
Description
Technical Field
the invention relates to the technical field of chemical products, in particular to a device for removing scale of a trioxymethylene heat exchanger.
Background
in the trioxymethylene production process, due to the material characteristics of the trioxymethylene production process, the shell pass of the trioxymethylene heat exchanger E6 is frequently blocked, the heat exchanger needs to be disassembled and inspected and the blockage is cleared after the heat exchanger is stopped, the cleaned material is directly discharged to a sewage treatment station, the material waste is caused, the working pressure of the sewage treatment station is increased, and the cost of sewage treatment and the consumption of resources and energy are improved.
disclosure of Invention
The invention aims to solve the technical problems that materials for cleaning a heat exchanger are wasted and the pressure of sewage treatment is high in the trioxymethylene production process. In order to solve the problems, the invention provides a device for removing the scale of the trioxymethylene heat exchanger.
The object of the invention is achieved in the following way:
a device for removing scale of a trioxymethylene heat exchanger comprises a steam heating system, an alkali preparation system and a waste liquid recovery system, wherein the steam heating system comprises a desalination water tank, a first heating pump, a mixing heater, a static mixer and a heat exchanger E6;
the alkali distribution system comprises a first alkali adding tank, a first alkali adding pump, a desalting water pipe, a second alkali adding tank and a second alkali adding pump;
the waste liquid recovery system comprises a recovery tank, a recovery pump, a decanter, a filter press, a solid treatment system, a buffer tank, a buffer pump, a sulfuric acid tank, a sulfuric acid delivery pump, a neutralization tank and a sewage treatment system;
The discharge hole of the desalination water tank is communicated with the inlet of a first heating pump, the outlet of the first heating pump is communicated with a static mixer, the outlet of the static mixer is communicated with the desalination water tank, a mixing heater is arranged between the static mixer and the first heating pump, the outlet of the first heating pump is also communicated with the mixing heater, and the outlet of the mixing heater is communicated with the lower shell pass of a heat exchanger E6;
The discharge pipeline of the first alkali adding tank is communicated with the inlet of a first alkali adding pump, the outlet pipe of the first alkali adding pump is communicated with a second alkali adding tank, a desalted water pipe is arranged between the first alkali adding pump and the second alkali adding tank and is communicated with the outlet pipe of the first alkali adding pump, the outlet pipe of the second alkali adding tank is communicated with the inlet of the second alkali adding pump, and the outlet pipe of the second alkali adding pump is communicated with the shell pass at the upper part of a heat exchanger E6;
The discharge pipe of the shell pass of the heat exchanger E6 is communicated with a recovery tank, the top of the recovery tank is provided with an emptying pipe, the outlet pipe of the recovery tank is communicated with the inlet of a recovery pump, the outlet pipe of the recovery pump is communicated with the middle feed inlet of a decanter, the discharge pipe at the lower part of an inclinator is communicated with a filter press, and the filter press is connected with a solid treatment system;
The discharging pipe at decanter top and the entry linkage of dashpot, the outlet pipe of dashpot and the entry intercommunication of buffer pump, the export pipe and the neutralizing tank intercommunication of buffer pump, the outlet pipe and the entry intercommunication of sulphuric acid delivery pump of sulphuric acid groove, the export pipe and the export pipe intercommunication of buffer pump of sulphuric acid delivery pump, neutralizing tank intercommunication sewage treatment system.
The static mixer is connected with the first steam tank through a first pneumatic regulating valve; a first temperature display meter is arranged at the outlet of the static mixer; the mixing heater is connected with a second steam tank through a second pneumatic regulating valve, and a second temperature display meter is arranged at the outlet of the mixing heater.
A first manual valve is arranged between the mixing heater and the heat exchanger E6, and a second manual valve is arranged between the second alkali adding pump and the heat exchanger E6.
The desalting water pipe is provided with a third pneumatic regulating valve, the water outlet pipe of the first alkali adding groove is provided with a fourth pneumatic regulating valve, the first alkali adding groove is filled with 45% NaOH aqueous solution, the NaOH aqueous solution is converged with the desalting water of the desalting water pipe into low-concentration alkali liquor after passing through the first alkali adding pump, and one end of the water outlet pipe of the first alkali adding pump, which is close to the second alkali adding groove, is provided with an alkali liquor concentration display meter.
1. the apparatus for removing scale in trioxymethylene heat exchanger according to claim 1, wherein: an acid adding flow meter and a fifth pneumatic adjusting valve are arranged on an outlet pipe of the sulfuric acid delivery pump, and a PH display meter is arranged at one end, close to the neutralizing tank, of the outlet pipe of the buffer pump.
An interface liquid level meter is arranged at the lower part of the decanter, and a sixth pneumatic regulating valve is arranged on a discharge pipe at the lower part of the decanter.
compared with the prior art, the invention can reduce material waste, reduce the pressure of sewage treatment, improve the equipment operation period, and realize the purposes of energy saving, consumption reduction, cost reduction and efficiency improvement.
drawings
fig. 1 is a schematic structural view of the present invention.
The system comprises a desalination water tank 1, a desalination water tank 2, a first heating pump 3, a static mixer 4, a mixing heater 5, a heat exchanger E6, a recovery tank 6, a recovery pump 7, a decanter 8, an interface liquid level meter 9, a buffer tank 10, a buffer pump 11, a buffer pump 12, a neutralization tank 13, a sewage treatment system 14, a PH display meter 15, a filter press 16, a solid treatment system 17, a sulfuric acid tank 18, a sulfuric acid delivery pump 19, an acid adding flow meter 20, a first alkali adding tank 21, a first alkali adding pump 22, an alkali liquor concentration display meter 23, a second alkali adding tank 24, a second alkali adding pump 25, a first pneumatic regulating valve 26, a second pneumatic regulating valve 27, a second manual valve 28, a first manual valve 29, a third pneumatic regulating valve 30, a fourth pneumatic regulating valve 31, a fifth pneumatic regulating valve 31 and a sixth pneumatic regulating valve 32.
Detailed Description
As shown in the attached figure 1, the device for removing the scale of the trioxymethylene heat exchanger comprises a steam heating system, an alkali preparation system and a waste liquid recovery system, wherein the steam heating system comprises a desalination water tank 1, a first heating pump 2, a mixing heater 4, a static mixer 3 and a heat exchanger E65;
the alkali distribution system comprises a first alkali adding groove 20, a first alkali adding pump 21, a desalting water pipe, a second alkali adding groove 23 and a second alkali adding pump 24;
the waste liquid recovery system comprises a recovery tank 6, a recovery pump 7, a decanter 8, a filter press 15, a solid treatment system 16, a buffer tank 10, a buffer pump 11, a sulfuric acid delivery pump 18, a neutralization tank 12 and a sewage treatment system 13;
The discharge hole of the desalination water tank 1 is communicated with the inlet of a first heating pump 2, the outlet of the first heating pump 2 is communicated with a static mixer 3, the outlet of the static mixer 3 is communicated with the desalination water tank 1, a mixing heater 4 is arranged between the static mixer 3 and the first heating pump 2, the outlet of the first heating pump 2 is also communicated with the mixing heater 4, and the outlet of the mixing heater 4 is communicated with the lower shell pass of a heat exchanger E65;
The discharge pipeline of the first alkali adding tank 20 is communicated with the inlet of a first alkali adding pump 21, the outlet pipe of the first alkali adding pump 21 is communicated with a second alkali adding tank 23, a desalted water pipe is arranged between the first alkali adding pump and the second alkali adding tank 23 and is communicated with the outlet pipe of the first alkali adding pump 21, the outlet pipe of the second alkali adding tank 23 is communicated with the inlet of a second alkali adding pump 24, and the outlet pipe of the second alkali adding pump 24 is communicated with the upper shell pass of a heat exchanger E65;
the discharge pipe of the shell pass of the heat exchanger E65 is communicated with a recovery tank 6, the top of the recovery tank 6 is provided with a vent pipe, the outlet pipe of the recovery tank 6 is communicated with the inlet of a recovery pump 7, the outlet pipe of the recovery pump 7 is communicated with the middle feed inlet of a decanter 8, the discharge pipe at the lower part of an inclinator is communicated with a filter press 15, and the filter press 15 is connected with a solid treatment system 16;
the discharging pipe at the top of the decanter 8 is connected with the inlet of the buffer tank 10, the outlet pipe of the buffer tank 10 is communicated with the inlet of the buffer pump 11, the outlet pipe of the buffer pump 11 is communicated with the neutralizing tank 12, the outlet pipe of the sulfuric acid tank 17 is communicated with the inlet of the sulfuric acid delivery pump 18, the outlet pipe of the sulfuric acid delivery pump 18 is communicated with the outlet pipe of the buffer pump 11 so as to neutralize caustic soda, reduce the treatment pressure of sewage, and the neutralizing tank 12 is communicated with the sewage treatment system 13.
The main feed of the static mixer 3 is desalted water, the adding amount of 4 kg of steam is controlled by a first pneumatic regulating valve 25, and the static mixer 3 is connected with a first steam tank through the first pneumatic regulating valve 25; a first temperature display meter is arranged at the outlet of the static mixer 3; the main feeding material of the mixing heater 4 is heated desalted water, the adding amount of 12 kg of steam is controlled by a second pneumatic adjusting valve 26, the mixing heater 4 is connected with a second steam tank through the second pneumatic adjusting valve 26, and a second temperature display meter is arranged at the outlet of the mixing heater 4.
A first manual valve 28 is provided between the hybrid heater 4 and the heat exchanger E65, the flow of the hybrid heater 4 into the heat exchanger E65 is controlled by the first manual valve 28, a second manual valve 27 is provided between the second alkalizing pump 24 and the heat exchanger E65, and the flow of the second alkalizing pump 24 into the heat exchanger E65 is controlled by the second manual valve 27.
The desalting water pipe is provided with a third pneumatic regulating valve 29, the water outlet pipe of the first alkali adding tank 20 is provided with a fourth pneumatic regulating valve 30, the first alkali adding tank 20 is filled with 45% NaOH aqueous solution, the adding amount of the 45% NaOH aqueous solution is controlled by the fourth pneumatic regulating valve 30, the NaOH aqueous solution is converged with the desalting water of the desalting water pipe into low-concentration alkali after passing through the first alkali adding pump 21, and one end of the outlet pipe of the first alkali adding pump 21, which is close to the second alkali adding tank 23, is provided with an alkali liquor concentration display meter 22.
An acid adding flow meter 19 and a fifth pneumatic regulating valve 31 are arranged on an outlet pipe of the sulfuric acid conveying pump 18, a PH display meter 14 is arranged at one end, close to the neutralizing tank 12, of the outlet pipe of the buffer pump 11, a sulfuric acid tank 17 is converged with the outlet material of the buffer pump 11 after passing through the sulfuric acid conveying pump 18 and enters the neutralizing tank 12, the acid adding flow meter 19 is arranged on the outlet pipe of the sulfuric acid conveying pump 18, the acid adding amount is controlled by the fifth pneumatic regulating valve 31 to reach the expected PH (the PH is about 7) and then enters the neutralizing tank 12, an interface liquid level meter 9 is arranged on the lower portion of the decanter 8, and a sixth pneumatic regulating valve 32 is arranged on a discharge pipe on the lower portion of the decanter 8.
heat exchanger E65 is a commercially available shell and tube heat exchanger.
The working process of the invention is as follows: 1. a steam heating system: desalted water in the desalted water tank 1 passes through a first heating pump 2 and then is divided into two pipelines, one pipeline passes through a static mixer 3 and then forms reflux with the desalted water tank 1, 4 kilograms of steam are added into the static mixer 3 to heat the desalted water, and the adding amount of the steam is controlled by a first pneumatic regulating valve 25; the other strand is communicated with a shell pass of a heat exchanger E65 after passing through a mixing heater 4, 12 kilograms of steam are added into the mixing heater 4 to carry out secondary temperature rise on desalted water, the adding amount of the steam is controlled by a first pneumatic adjusting valve 25, the desalted water after secondary temperature rise is gasified (the temperature reaches about 150 ℃, scaling substances are easy to dissolve at the temperature) and enters the shell pass at the bottom of the heat exchanger E65 to be steamed and cleaned, and the flow is controlled by a first manual valve 28;
2. Alkali preparation system: the first alkali adding tank 20 (45% NaOH aqueous solution) is conveyed to the second alkali adding tank 23 through the first alkali adding pump 21, the outlet pipe of the first alkali adding pump 21 is communicated with a desalting water pipe in the conveying process, the desalting water pipe is connected with a desalting water tank, the desalting water tank 1 is also connected with the desalting water tank, the adding amount of desalting water is controlled by a third pneumatic regulating valve 29, the adding amount of the conveyed 45% NaOH aqueous solution is controlled by a fourth pneumatic regulating valve 30, the 45% NaOH aqueous solution and the fourth pneumatic regulating valve are mixed to prepare low-concentration (about 10%) alkali liquor according to a certain proportion, the alkali environment promotes the dissolution of scaling substances, the alkali liquor enters the second alkali adding tank 23 after being mixed, the outlet dilute alkali liquor at the bottom of the second alkali adding tank 23 is communicated with the shell side at the upper part of a heat exchanger E65 after passing through the second alkali adding pump 24, and the adding amount of alkali is controlled by;
3. Waste liquid recovery system: the materials cleaned by the heat exchanger E65 are communicated with the recovery tank 6, the top of the recovery tank 6 is provided with an emptying pipe to prevent equipment from being suppressed, the materials in the recovery tank 6 enter the middle part of the decanter 8 after passing through the recovery pump 7, an interface liquid level meter 9 is formed in the decanter 8, the alkali liquor on the upper layer enters the buffer tank 10, is conveyed into the neutralization tank 12 through the buffer pump 11, and is finally conveyed to the sewage treatment system 13; the reboiled substance at the lower part of the decanter 8 is sent into a solid treatment system 16 for further treatment after being filter-pressed by a filter press 15, and the discharge amount of the reboiled substance is controlled by a sixth pneumatic regulating valve 32 according to the height of the interface liquid level meter 9;
It should be noted that the solid treatment system mainly removes the heavy boiling substances, and can refer to the chinese patent with application number CN201820456311.2, named as a system for dewatering, refining and recycling DMAC, DMF or DMSO waste liquid, and the wastewater treatment system can refer to the chinese patent with application number CN201820658554.4, named as a chemical wastewater treatment system.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (6)
1. the utility model provides a get rid of device of trioxymethylene heat exchanger scale deposit, includes steam heating system, joins in marriage alkali system and waste liquid recovery system, its characterized in that: the steam heating system comprises a desalination water tank, a first heating pump, a mixing heater, a static mixer and a heat exchanger E6;
the alkali distribution system comprises a first alkali adding tank, a first alkali adding pump, a desalting water pipe, a second alkali adding tank and a second alkali adding pump;
the waste liquid recovery system comprises a recovery tank, a recovery pump, a decanter, a filter press, a solid treatment system, a buffer tank, a buffer pump, a sulfuric acid tank, a sulfuric acid delivery pump, a neutralization tank and a sewage treatment system;
the discharge hole of the desalination water tank is communicated with the inlet of a first heating pump, the outlet of the first heating pump is communicated with a static mixer, the outlet of the static mixer is communicated with the desalination water tank, a mixing heater is arranged between the static mixer and the first heating pump, the outlet of the first heating pump is also communicated with the mixing heater, and the outlet of the mixing heater is communicated with the lower shell pass of a heat exchanger E6;
The discharge pipeline of the first alkali adding tank is communicated with the inlet of a first alkali adding pump, the outlet pipe of the first alkali adding pump is communicated with a second alkali adding tank, a desalted water pipe is arranged between the first alkali adding pump and the second alkali adding tank and is communicated with the outlet pipe of the first alkali adding pump, the outlet pipe of the second alkali adding tank is communicated with the inlet of the second alkali adding pump, and the outlet pipe of the second alkali adding pump is communicated with the shell pass at the upper part of a heat exchanger E6;
The discharge pipe of the shell pass of the heat exchanger E6 is communicated with a recovery tank, the top of the recovery tank is provided with an emptying pipe, the outlet pipe of the recovery tank is communicated with the inlet of a recovery pump, the outlet pipe of the recovery pump is communicated with the middle feed inlet of a decanter, the discharge pipe at the lower part of an inclinator is communicated with a filter press, and the filter press is connected with a solid treatment system;
The discharging pipe at decanter top and the entry linkage of dashpot, the outlet pipe of dashpot and the entry intercommunication of buffer pump, the export pipe and the neutralizing tank intercommunication of buffer pump, the outlet pipe and the entry intercommunication of sulphuric acid delivery pump of sulphuric acid groove, the export pipe and the export pipe intercommunication of buffer pump of sulphuric acid delivery pump, neutralizing tank intercommunication sewage treatment system.
2. The apparatus for removing scale in trioxymethylene heat exchanger according to claim 1, wherein: the static mixer is connected with the first steam tank through a first pneumatic regulating valve; a first temperature display meter is arranged at the outlet of the static mixer; the mixing heater is connected with a second steam tank through a second pneumatic regulating valve, and a second temperature display meter is arranged at the outlet of the mixing heater.
3. the apparatus for removing scale in trioxymethylene heat exchanger according to claim 1, wherein: a first manual valve is arranged between the mixing heater and the heat exchanger E6, and a second manual valve is arranged between the second alkali adding pump and the heat exchanger E6.
4. The apparatus for removing scale in trioxymethylene heat exchanger according to claim 1, wherein: the desalting water pipe is provided with a third pneumatic regulating valve, the water outlet pipe of the first alkali adding groove is provided with a fourth pneumatic regulating valve, the first alkali adding groove is filled with 45% NaOH aqueous solution, the NaOH aqueous solution is converged with the desalting water of the desalting water pipe into low-concentration alkali liquor after passing through the first alkali adding pump, and one end of the water outlet pipe of the first alkali adding pump, which is close to the second alkali adding groove, is provided with an alkali liquor concentration display meter.
5. The apparatus for removing scale in trioxymethylene heat exchanger according to claim 1, wherein: an acid adding flow meter and a fifth pneumatic adjusting valve are arranged on an outlet pipe of the sulfuric acid delivery pump, and a PH display meter is arranged at one end, close to the neutralizing tank, of the outlet pipe of the buffer pump.
6. the apparatus for removing scale in trioxymethylene heat exchanger according to claim 1, wherein: an interface liquid level meter is arranged at the lower part of the decanter, and a sixth pneumatic regulating valve is arranged on a discharge pipe at the lower part of the decanter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911005744.1A CN110542346B (en) | 2019-10-22 | Get rid of device of trioxymethylene heat exchanger scale deposit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911005744.1A CN110542346B (en) | 2019-10-22 | Get rid of device of trioxymethylene heat exchanger scale deposit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110542346A true CN110542346A (en) | 2019-12-06 |
| CN110542346B CN110542346B (en) | 2024-06-21 |
Family
ID=
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|---|---|---|---|---|
| GB1233005A (en) * | 1967-06-14 | 1971-05-26 | ||
| US20060185691A1 (en) * | 2005-02-24 | 2006-08-24 | National Heat Exchange Cleaning Corp. | Method and system for cleaning heat exchanger tube bundles |
| CN101987755A (en) * | 2010-10-22 | 2011-03-23 | 西安交通大学 | Supercritical water treatment system of organic wastewater with low salt content |
| CN104478848A (en) * | 2015-01-09 | 2015-04-01 | 开封龙宇化工有限公司 | Trioxymethylene light component removal tower separator alkali adding washing device and using method |
| CN107628714A (en) * | 2017-06-04 | 2018-01-26 | 江苏沃尔特环保有限公司 | New DW system demineralized water system and its processing method after a kind of improvement |
| CN207108722U (en) * | 2017-07-04 | 2018-03-16 | 中化重庆涪陵化工有限公司 | Synthesize ammonia Desalting Water System |
| CN207850101U (en) * | 2017-12-02 | 2018-09-11 | 西安市永鑫科技有限公司 | One kind is safe can self-cleaning condenser |
| CN108976194A (en) * | 2018-08-17 | 2018-12-11 | 兖矿鲁南化工有限公司 | The online depolymerization method of by-product paraformaldehyde in a kind of metaformaldehyde synthetic reaction |
| CN208340434U (en) * | 2018-04-11 | 2019-01-08 | 重庆卡贝乐化工有限责任公司 | A kind of cyclic utilization system of carbon dioxide absorption solvent |
| CN211717256U (en) * | 2019-10-22 | 2020-10-20 | 开封龙宇化工有限公司 | Device for removing scale of trioxymethylene heat exchanger |
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1233005A (en) * | 1967-06-14 | 1971-05-26 | ||
| US20060185691A1 (en) * | 2005-02-24 | 2006-08-24 | National Heat Exchange Cleaning Corp. | Method and system for cleaning heat exchanger tube bundles |
| CN101987755A (en) * | 2010-10-22 | 2011-03-23 | 西安交通大学 | Supercritical water treatment system of organic wastewater with low salt content |
| CN104478848A (en) * | 2015-01-09 | 2015-04-01 | 开封龙宇化工有限公司 | Trioxymethylene light component removal tower separator alkali adding washing device and using method |
| CN107628714A (en) * | 2017-06-04 | 2018-01-26 | 江苏沃尔特环保有限公司 | New DW system demineralized water system and its processing method after a kind of improvement |
| CN207108722U (en) * | 2017-07-04 | 2018-03-16 | 中化重庆涪陵化工有限公司 | Synthesize ammonia Desalting Water System |
| CN207850101U (en) * | 2017-12-02 | 2018-09-11 | 西安市永鑫科技有限公司 | One kind is safe can self-cleaning condenser |
| CN208340434U (en) * | 2018-04-11 | 2019-01-08 | 重庆卡贝乐化工有限责任公司 | A kind of cyclic utilization system of carbon dioxide absorption solvent |
| CN108976194A (en) * | 2018-08-17 | 2018-12-11 | 兖矿鲁南化工有限公司 | The online depolymerization method of by-product paraformaldehyde in a kind of metaformaldehyde synthetic reaction |
| CN211717256U (en) * | 2019-10-22 | 2020-10-20 | 开封龙宇化工有限公司 | Device for removing scale of trioxymethylene heat exchanger |
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