CN107131771A - The guard method of esterification condensator tube sheet - Google Patents
The guard method of esterification condensator tube sheet Download PDFInfo
- Publication number
- CN107131771A CN107131771A CN201710223031.7A CN201710223031A CN107131771A CN 107131771 A CN107131771 A CN 107131771A CN 201710223031 A CN201710223031 A CN 201710223031A CN 107131771 A CN107131771 A CN 107131771A
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- CN
- China
- Prior art keywords
- alcohol
- steam
- temperature
- esterification
- liquid
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Esterification condensator tube sheet guard method of the present invention, step is as follows：1) after esterification, the conveying of alcohol steam is passed through into liquid alcohol region；2) pressurizing atomizing is carried out to liquid alcohol, the liquid alcohol being now atomized contacts progress mass-and heat-transfer with alcohol steam；31) via step 2), and temperature is down to 103 DEG C 130 DEG C of alcohol steam and is delivered to condenser；32) in step 31) when synchronously carry out secondary alcohol addition, and step 2 is carried out to the secondary alcohol of addition)；4) temperature is down to 103 DEG C 130 DEG C of alcohol steam and progress continuation cooling is contacted with condenser pipe.The present invention enters back into condenser after the heat by configuring liquid alcohol absorption gas alcohol and condensed, and reduces the temperature of the alcohol steam contacted with tubulation, it is to avoid high temperature alcohol instant steam contacts the larger stress of generation with tubulation and causes panel weld to come off；Reduce tube side and ensure stabilization of equipment performance and service life with shell side temperature；The heat that liquid alcohol absorbs can be repeated for esterification, reduce energy waste.
Description
Technical field
The present invention relates to chemical products preparing technical field, more particularly to plasticizer technology of preparing and its Preparation equipment, tool
Body, it shows a kind of esterification condensator tube sheet guard method.
Background technology
Plasticizer is one of basic material of chemical technology field, needs to carry out by esterification condensator in its preparation process
Condensation；
Condensation method at this stage be alcohol vapor (steam) temperature at 220 DEG C -225 DEG C, directly contacted with esterification condensator tube sheet
Carry out condensation and be cooled to 50 DEG C；High temperature alcohol instant steam is contacted with tubulation to be easy to produce stress, causes panel weld to come off, sternly
The about normal production of recasting, and tube side is big with the shell side temperature difference, causes stress concentration, damages equipment；While a large amount of heat energy of alcohol steam
Removed by water, waste serious.
Therefore, it is necessary to provide a kind of esterification condensator tube sheet guard method to solve the above problems.
The content of the invention
It is an object of the invention to provide a kind of esterification condensator tube sheet guard method, it absorbs gas by configuring liquid alcohol
Condenser is entered back into after the heat of alcohol to be condensed, and reduces the temperature of the alcohol steam contacted with tubulation, it is to avoid high temperature alcohol steam wink
Between the larger stress of generation contacted with tubulation cause panel weld to come off；Tube side is reduced to ensure stabilization of equipment performance with shell side temperature and use
Life-span；Meanwhile, the heat that liquid alcohol absorbs can be repeated for esterification, reduce energy waste.
The present invention is achieved through the following technical solutions above-mentioned purpose：
A kind of esterification condensator tube sheet guard method, step is as follows：
1) after esterification, the conveying of alcohol steam is passed through into liquid alcohol region；
2) pressurizing atomizing is carried out to liquid alcohol, the liquid alcohol being now atomized contacts progress mass-and heat-transfer with alcohol steam；
31) via step 2), and temperature is down to 103 DEG C -130 DEG C of alcohol steam and is delivered to condenser；
32) in step 31) when synchronously carry out secondary alcohol addition, and step 2 is carried out to the secondary alcohol of addition)
4) temperature is down to 103 DEG C -130 DEG C of alcohol steam and progress continuation cooling is contacted with condenser pipe.
Further, step 32) in secondary alcohol addition be 2.5m3/h.
Further, cooling water is led in the tubulation of condenser, cold in-water temperature is with gas phase temperature difference control 100
℃-105℃。
Compared with prior art, a kind of esterification condensator tube sheet guard method of the invention, it is inhaled by configuring liquid alcohol
Condenser is entered back into after the heat of getter body alcohol to be condensed, and reduces the temperature of the alcohol steam contacted with tubulation, it is to avoid high temperature alcohol
Instant steam contacts the larger stress of generation with tubulation and causes panel weld to come off；Reduce tube side and ensure stabilization of equipment performance with shell side temperature
And service life；Meanwhile, the heat that liquid alcohol absorbs can be repeated for esterification, reduce energy waste.
Embodiment
Embodiment：
A kind of esterification condensator tube sheet guard method, step is as follows：
1) after esterification, the conveying of alcohol steam is passed through into liquid alcohol region；
2) pressurizing atomizing is carried out to liquid alcohol, the liquid alcohol being now atomized contacts progress mass-and heat-transfer with alcohol steam；
31) via step 2), and temperature is down to 103 DEG C -130 DEG C of alcohol steam and is delivered to condenser；
32) in step 31) when synchronously carry out secondary alcohol addition, and step 2 is carried out to the secondary alcohol of addition)
4) temperature is down to 103 DEG C -130 DEG C of alcohol steam and progress continuation cooling is contacted with condenser pipe.
Step 32) in secondary alcohol addition be 2.5m3/h.
Lead to cooling water in the tubulation of condenser, cold in-water temperature is with gas phase temperature difference control at 100 DEG C -105 DEG C.
Compared with prior art, a kind of esterification condensator tube sheet guard method of the invention, it is inhaled by configuring liquid alcohol
Condenser is entered back into after the heat of getter body alcohol to be condensed, and reduces the temperature of the alcohol steam contacted with tubulation, it is to avoid high temperature alcohol
Instant steam contacts the larger stress of generation with tubulation and causes panel weld to come off；Reduce tube side and ensure stabilization of equipment performance with shell side temperature
And service life；Meanwhile, the heat that liquid alcohol absorbs can be repeated for esterification, reduce energy waste.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (3)
1. a kind of esterification condensator tube sheet guard method, it is characterised in that：Step is as follows：
1) after esterification, the conveying of alcohol steam is passed through into liquid alcohol region；
2) pressurizing atomizing is carried out to liquid alcohol, the liquid alcohol being now atomized contacts progress mass-and heat-transfer with alcohol steam；
31) via step 2), and temperature is down to 103 DEG C -130 DEG C of alcohol steam and is delivered to condenser；
32) in step 31) when synchronously carry out secondary alcohol addition, and step 2 is carried out to the secondary alcohol of addition)；
4) temperature is down to 103 DEG C -130 DEG C of alcohol steam and progress continuation cooling is contacted with condenser pipe.
2. a kind of esterification condensator tube sheet guard method according to claim 1, it is characterised in that：Step 32) in it is secondary
Alcohol addition is 2.5m3/h.
3. a kind of esterification condensator tube sheet guard method according to claim 1 or 2, it is characterised in that：The row of condenser
Guan Zhongtong cooling waters, cold in-water temperature is with gas phase temperature difference control at 100 DEG C -105 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710223031.7A CN107131771A (en) | 2017-04-07 | 2017-04-07 | The guard method of esterification condensator tube sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710223031.7A CN107131771A (en) | 2017-04-07 | 2017-04-07 | The guard method of esterification condensator tube sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107131771A true CN107131771A (en) | 2017-09-05 |
Family
ID=59715450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710223031.7A Pending CN107131771A (en) | 2017-04-07 | 2017-04-07 | The guard method of esterification condensator tube sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107131771A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB344328A (en) * | 1930-07-26 | 1931-03-05 | Eustace Bradley Gruselle | Method of and means for condensing and cooling vapours |
| CN1031415A (en) * | 1987-08-12 | 1989-03-01 | 达雅·兰吉特·森那纳雅基 | Barometric direct-contact condenser |
| CN1270300A (en) * | 2000-04-26 | 2000-10-18 | 陶骏昌 | Moistening heat exchanger for over-heat dry steam |
| CN204007229U (en) * | 2014-09-02 | 2014-12-10 | 南京国昌化工科技有限公司 | The high-efficiency evaporator with natural circulation |
| CN205495017U (en) * | 2016-02-15 | 2016-08-24 | 江苏森禾化工科技有限公司 | Condenser of esterifying |
-
2017
- 2017-04-07 CN CN201710223031.7A patent/CN107131771A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB344328A (en) * | 1930-07-26 | 1931-03-05 | Eustace Bradley Gruselle | Method of and means for condensing and cooling vapours |
| CN1031415A (en) * | 1987-08-12 | 1989-03-01 | 达雅·兰吉特·森那纳雅基 | Barometric direct-contact condenser |
| CN1270300A (en) * | 2000-04-26 | 2000-10-18 | 陶骏昌 | Moistening heat exchanger for over-heat dry steam |
| CN204007229U (en) * | 2014-09-02 | 2014-12-10 | 南京国昌化工科技有限公司 | The high-efficiency evaporator with natural circulation |
| CN205495017U (en) * | 2016-02-15 | 2016-08-24 | 江苏森禾化工科技有限公司 | Condenser of esterifying |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170905 |
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| RJ01 | Rejection of invention patent application after publication |