CN101450894B - Thermal insulation and supplementary heating system for acroleic acid and ester apparatus - Google Patents
Thermal insulation and supplementary heating system for acroleic acid and ester apparatus Download PDFInfo
- Publication number
- CN101450894B CN101450894B CN2009100664073A CN200910066407A CN101450894B CN 101450894 B CN101450894 B CN 101450894B CN 2009100664073 A CN2009100664073 A CN 2009100664073A CN 200910066407 A CN200910066407 A CN 200910066407A CN 101450894 B CN101450894 B CN 101450894B
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- Prior art keywords
- water
- holding tank
- vinylformic acid
- thermal insulation
- heat tracing
- 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.)
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- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000009413 insulation Methods 0.000 title claims abstract description 17
- 150000002148 esters Chemical class 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 title claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000000498 cooling water Substances 0.000 claims abstract description 5
- 239000007791 liquid phase Substances 0.000 claims abstract description 4
- 239000002826 coolant Substances 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 239000004173 sunset yellow FCF Substances 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract 3
- 239000006244 Medium Thermal Substances 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a thermal insulation heat tracing system for an acrylic acid and ester device. The system uses cooling water in the device for medium thermal insulation heat tracing at a liquid phase state. The system is characterized in that water is heated up to the temperature of between 35 and 43 DEG C by a cooler, heated up to the temperature of between 60 and 70 DEG C by a heater, and sent to all production zones for thermal insulation heat tracing, after heat tracing, the water is sent to collecting tanks in the zones, flows in a collecting tank of the device, and then is pumped back to a water re-circulating station for reutilization. The system has the advantages that the water for thermal insulation heat tracing is cooling water in the cooler in an acrylic acid reaction unit and is utilized after being heated by the heater, and after thermal insulation heat tracing, the cooling water is not discharged in a sewer tunnel, but sent back to the device for cyclical utilization, so vapor consumption is saved and water loss is reduced; for example, the technical proposal can save nearly 7 million Yuan of device operational cost for an acrylic acid and ester device with annual output of 80,000 tons annually and has economic and social benefits are obviously improved.
Description
Technical field
The present invention relates to the equipment and the piping insulation tracing system of organic chemicals vinylformic acid and acrylate production equipment.
Background technology
Vinylformic acid and ester apparatus are because of the special property of its medium, and most equipment and pipeline all need insulation companion heat.When vinylformic acid and ester medium exist with gas phase state, need low-pressure steam companion heat, need the hotwater tracing when existing with liquid phase state.In its companion's thermal process, because vinylformic acid and ester apparatus unit are many, equipment layout is comparatively disperseed.Handle bad, can cause the tracing system mutual restriction, cause local companion's heat overheated or cold excessively, by companion's thermal medium polymerization or crystallization, influence long-term safety, the steady running of device, simultaneously, low-pressure steam heat water be used to be incubated companion heat be the waste of the energy, water after the insulation companion heat enters trench and bleeds off, and is not reclaimed a kind of especially wasting of resources.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of new vinylformic acid and ester apparatus insulation tracing system is provided.
Technical scheme of the present invention is the water coolant of existing processing unit in the use device, adopt the interior existing processing unit of this device that above-mentioned water coolant is heated, heated hot water is used for the insulation companion heat of equipment and pipeline, is respectively equipped with holding tank by different sites, water is reclaimed, utilize again.
A kind of vinylformic acid and ester apparatus insulation tracing system, the vinylformic acid reaction generates gas by absorption tower absorption operation in the vinylformic acid reaction member, the last water temp of the water cooler E-110 water coolant at the bottom of its tower is 25～33 ℃, it is characterized in that, by water cooler E-110, its return water temperature rises to 35～43 ℃, this backwater is sent into well heater E-760, temperature of cooling water after the heating rises to 60～70 ℃, be used in equipment and the pipeline that medium is incubated companion's heat under the liquid phase state, layout distribution situation according to processing unit, be respectively equipped with finished product acrylate district holding tank, vinylformic acid production area holding tank, acrylate production area holding tank, acrylate intermediate tank farm holding tank, vinylformic acid is produced intermediate tank farm holding tank, the water coolant of above-mentioned each holding tank, access to plant holding tank, deliver to the circulation water station with heat pump P-761 again, recycling.
The invention has the advantages that the insulation side het water makes without low-pressure steam, and with the water coolant of vinylformic acid reaction member water cooler, forms by heater heats, the water coolant after the heat is accompanied in insulation, does not arrange to trench, again return mechanism.Resource and energy recovery utilization.
With 80,000 tons of/year vinylformic acid and ester apparatus is example, can save about 7,000,000 yuan of working cost every year, and its economic and social benefit is remarkable.
Description of drawings
Fig. 1 constitutes sketch for system of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific examples the present invention is made detailed description further.
Certain 80,000 tons of/year vinylformic acid and ester apparatus project, water cooler needs recirculated water to cool off at the bottom of the absorption Tata, with the temperature that requires at the bottom of the assurance absorption Tata.Needing the amount of 30 ℃ of water coolants is 332 tons/hour.After water cooler E-110 cooling at the bottom of the tower, water coolant temperature be 40 ℃.332 tons/hour, 40 ℃ recirculated water backwater are heated by hot water heater E-760, this strand hot water is heated to 65 ℃, and consuming steam is 16.74 tons/hour, and original device is before implementing this programme, 30 ℃ of water coolants are heated, and consuming steam is 22.5 tons/hour.Can save 5.76 tons/hour of steam with the present invention, with 138.5 yuan of/ton calculating of steam, 1 year can reduce 638.2 ten thousand yuan of working costs.Reduced the one-time investment of E-760 simultaneously.
80,000 tons of/year vinylformic acid and ester apparatus project, device are arranged and are divided into vinylformic acid master device district, vinylformic acid and ester intermediate tank farm and vinylformic acid finished product tank field.Since tank field and main device be subjected to safe distance restriction, the distance of layout is far away.And each zone all needs the hotwater tracing, as not collecting reallocation, will cause individual device and pipeline the hot water of the insulation companion phenomenon of quarrelling to occur.The part will occur overheated and cross cold situation, causes material crystallization or polymerization, causes equipment and line clogging, causes unnecessary parking.The present invention has overcome the shortcoming of existing apparatus.The hot water backwater is carried out subregion collect, finally be aggregated in the device holding tank.For this reason, be respectively equipped with finished product tank field holding tank, vinylformic acid district holding tank, acrylate district holding tank, acrylate intermediate tank farm holding tank, vinylformic acid intermediate tank farm holding tank, more than the water coolant of each holding tank, access to plant holding tank again, P-761 sends with hot water pump, recycles.Conserve water nearly 300 tons/hour.With 0.4 yuan of/ton calculating of recirculated water, but 960,000 yuan of cost savings in a year.
Claims (1)
1. vinylformic acid and ester apparatus insulation tracing system, the vinylformic acid reaction generates gas by absorption tower absorption operation in the vinylformic acid reaction member, the last water temp of the water cooler at the bottom of its tower (E-110) water coolant is 25～33 ℃, it is characterized in that, by water cooler (E-110), its return water temperature rises to 35～43 ℃, this backwater is sent into well heater (E-760), temperature of cooling water after the heating rises to 60～70 ℃, be used in equipment and the pipeline that medium is incubated companion's heat under the liquid phase state, layout distribution situation according to processing unit, be respectively equipped with finished product acrylate district holding tank, vinylformic acid production area holding tank, acrylate production area holding tank, acrylate intermediate tank farm holding tank, vinylformic acid is produced the intermediate tank farm holding tank, the water coolant of above-mentioned each holding tank, the access to plant holding tank, use heat pump (P-761) to deliver to the circulation water station again, recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100664073A CN101450894B (en) | 2009-01-01 | 2009-01-01 | Thermal insulation and supplementary heating system for acroleic acid and ester apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100664073A CN101450894B (en) | 2009-01-01 | 2009-01-01 | Thermal insulation and supplementary heating system for acroleic acid and ester apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101450894A CN101450894A (en) | 2009-06-10 |
| CN101450894B true CN101450894B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100664073A Active CN101450894B (en) | 2009-01-01 | 2009-01-01 | Thermal insulation and supplementary heating system for acroleic acid and ester apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN101450894B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115108943A (en) * | 2022-08-09 | 2022-09-27 | 山东禹城易澳科技有限公司 | Process for stabilizing water temperature of hot water in carbamate production |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030205451A1 (en) * | 2002-05-01 | 2003-11-06 | Briegel Keith Frederick | Process for manufacturing high purity methacrylic acid |
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- 2009-01-01 CN CN2009100664073A patent/CN101450894B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030205451A1 (en) * | 2002-05-01 | 2003-11-06 | Briegel Keith Frederick | Process for manufacturing high purity methacrylic acid |
Non-Patent Citations (2)
| Title |
|---|
| 戚学贵等.伴热***及外伴热管体系性能优化技术评述.《天然气工业》.2007,第27卷(第4期),108-111. * |
| 马俊.丙烯酸的工业储存要点.《广东化工》.2008,第35卷(第6期),58-60. * |
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| CN101450894A (en) | 2009-06-10 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Li Inventor after: Li Yinghui Inventor after: Guo Xiaoyu Inventor after: Liu Chunyan Inventor after: Gong He Inventor after: Gong Chuanzhi Inventor after: Shi Guangming Inventor after: Li Zhiyuan Inventor after: Liu Xuexian Inventor after: Li Yanhong Inventor after: Zhao Liping Inventor after: Qiao Shihong Inventor after: Xu Deren Inventor before: Liu Li Inventor before: Li Yinghui Inventor before: Guo Xiaoyu Inventor before: Liu Chunyan Inventor before: Gong Chuanzhi Inventor before: Shi Guangming Inventor before: Li Zhiyuan Inventor before: Liu Xuexian Inventor before: Li Yanhong Inventor before: Zhao Liping Inventor before: Qiao Shihong Inventor before: Xu Deren |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU LI GONG CHUANZHI SHI GUANGMING LI ZHIYUAN LIU XUEXIAN LI YANHONG ZHAO LIPING QIAO SHIHONG XU DEREN LI YINGHUI GUO XIAOYU LIU CHUNYAN TO: LIU LI GONG CHUANZHI SHI GUANGMING LI ZHIYUAN LIU XUEXIAN LI YANHONG ZHAO LIPING QIAO SHIHONG XU DEREN LI YINGHUI GUO XIAOYU LIU CHUNYAN GONG HE |
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| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Changyi District of Jilin city of Jilin Province on the 132002 road at the eastern end of Lake Jilin Trade Building Patentee after: Jilin Design Institute of Northeast Refining & Chemical Engineering Co., Ltd., CNPC Address before: Changyi District of Jilin city of Jilin Province on the 132022 road at the eastern end of Lake Jilin Trade Building Patentee before: PetroChina Northeast Refining & Chemical Engineering Co., Ltd. Jilin Design Institute |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200928 Address after: 132002 3-6 and 9-13 floors of Block A, Jihua Economic and Trade Center, Tongtan Road, Changyi District, Jilin Province Patentee after: PetroChina Jilin Chemical Engineering Co.,Ltd. Address before: Changyi District of Jilin city of Jilin Province on the 132002 road at the eastern end of Lake Jilin Trade Building Patentee before: JILIN DESIGNING INSTITUTE OF CNPC NORTHEAST REFINING & CHEMICAL ENGINEERING Co.,Ltd. |
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