CN206989731U - A kind of naphthalene method phthalic anhydride precondenser device - Google Patents
A kind of naphthalene method phthalic anhydride precondenser device Download PDFInfo
- Publication number
- CN206989731U CN206989731U CN201720785299.5U CN201720785299U CN206989731U CN 206989731 U CN206989731 U CN 206989731U CN 201720785299 U CN201720785299 U CN 201720785299U CN 206989731 U CN206989731 U CN 206989731U
- Authority
- CN
- China
- Prior art keywords
- precondenser
- shell
- tube
- switch condenser
- discharging opening
- 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.)
- Active
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a kind of naphthalene method phthalic anhydride precondenser device, including some shell and tube precondensers and some switch condensers, the corresponding shell and tube precondenser of every switch condenser, the charging aperture of shell and tube precondenser is in parallel, and the discharging opening of shell and tube precondenser and the connection of corresponding switch condenser charging aperture are simultaneously in parallel with the discharging opening of other shell and tube precondensers；The discharging opening of switch condenser is in parallel, and the gas outlet of switch condenser is in parallel；The gas outlet of switch condenser is connected with burning facility；The discharging opening of switch condenser is connected with thick acid anhydride tank.The utility model have it is simple in construction, it is easy to operate, be not easily blocked pipe-line equipment, the macrocyclic stable operation of phthalic anhydride plant can be ensure that with cleaning on line；Giant cleaning tubular heat exchanger can be utilized, cleaning is thorough, effectively avoids the unsafe factor that molysite blast is brought.
Description
Technical field
It the utility model is related to a kind of naphthalene method phthalic anhydride production equipment, and in particular to a kind of naphthalene method phthalic anhydride precondenser device,
Belong to technical field of chemical.
Background technology
Phthalic anhydride（Phthalic anhydride）It is important basic organic chemical raw material, mainly for the production of plasticizer, alkyd tree
Fat and unsaturated-resin.Existing naphthalene method phthalic anhydride precondenser device is the design done using the ortho-xylene of petroleum as raw material, general
All over oval finned heat exchanger, the heat exchanger structure simple heat exchange efficiency high of this structure is used, shortcoming is oval fin heat exchange
The fin clearance of device is small, easily causes fin coking, so as to cause SR to raise, parking maintenance is needed when serious；Overhaul wing
During coking material between piece, most efficient method is soda boiling heat exchanger, still, because the fin clearance of finned heat exchanger is small, this
The processing method of sample tends not to effectively remove the molysite material at equipment dead angle, and the self-ignition point of molysite is only 142 DEG C, after maintenance
Easily exploded during first driving because device temperature exceedes molysite self-ignition point, safety in production is constituted a threat to；In addition, wing
The cycle of piece heat exchanger coking is essentially two months, due to the necessary parking maintenance of cleaning coking, so results in a whole set of naphthalene method benzene
The cycle of operation of acid anhydride process units is also two months, and production efficiency is affected.
Therefore, develop one kind and be not easily blocked pipe-line equipment, increase the run time of process units, ensure the long period of device
The naphthalene method phthalic anhydride precondenser device of even running is very necessary, and the device also has important application prospect.
The content of the invention
The utility model makes improvement for the above-mentioned problems of the prior art, there is provided a kind of naphthalene method phthalic anhydride precondenser
Device, pipe-line equipment is not easily blocked, increases the run time of process units, ensure the long period even running of process units.
In order to realize above-mentioned target, technical scheme is used by the utility model：
A kind of naphthalene method phthalic anhydride precondenser device, including some shell and tube precondensers（1）With some switching condensations
Device（2）, it is characterised in that every switch condenser（2）A corresponding shell and tube precondenser（1）, the tubulation
Formula precondenser（1）Charging aperture it is in parallel, the shell and tube precondenser（1）Discharging opening and the corresponding switch condenser
（2）Charging aperture connection simultaneously with other shell and tube precondensers（1）Discharging opening it is in parallel；The switch condenser（2）'s
Discharging opening is in parallel, the switch condenser（2）Gas outlet it is in parallel.
A kind of foregoing naphthalene method phthalic anhydride precondenser device, it is characterised in that the switch condenser（2）Gas outlet with
Burning facility connects.
A kind of foregoing naphthalene method phthalic anhydride precondenser device, it is characterised in that the switch condenser（2）Discharging opening with
Thick acid anhydride tank connection.
Compared with prior art, it is of the present utility model to be beneficial in that：
（1）Tubular heat exchanger is simple in construction, easy to operate, is not easily blocked pipe-line equipment, can be ensured with cleaning on line
The macrocyclic stable operation of phthalic anhydride plant；
（2）Giant cleaning tubular heat exchanger can be utilized, cleaning is thorough, effectively avoids molysite blast and brings
Unsafe factor.
Brief description of the drawings
Fig. 1 is the structural representation of naphthalene method phthalic anhydride precondenser device in the prior art；
Fig. 2 is a kind of structural representation of a specific embodiment of naphthalene method phthalic anhydride precondenser device of the present utility model
Figure.
Wherein：
1- shell and tube precondenser 2- switch condensers.
Embodiment
Make specific introduce to the utility model below in conjunction with the drawings and specific embodiments.
Referring to Figures 1 and 2, naphthalene method phthalic anhydride precondenser device of the present utility model, including five shell and tube precondensers 1
With five switch condensers 2, the corresponding shell and tube precondenser 1 of every switch condenser 2, shell and tube precondenser 1 enters
Material mouth is in parallel, the discharging opening of shell and tube precondenser 1 connected with the corresponding charging aperture of switch condenser 2 and meanwhile with other shell and tubes
The discharging opening of precondenser 1 is in parallel；The discharging opening of switch condenser 2 is in parallel, and the gas outlet of switch condenser 2 is in parallel；
Compared with the naphthalene method phthalic anhydride precondenser device of prior art in Fig. 1, naphthalene method phthalic anhydride preliminary condensation of the present utility model
After coking occurs for a certain shell and tube precondenser 1 of device device, can individually it be stopped using high by the Valve controlling on pipeline
Tap cleaning is pressed, now other four shell and tube precondensers 1 work on, and four are opened for one, by the operation of process units
Cycle brought up at least six months from two months, substantially increased production efficiency.
As a kind of preferable scheme, the gas outlet of switch condenser 2 is connected with burning facility.
As a kind of preferable scheme, the discharging opening of switch condenser 2 is connected with thick acid anhydride tank.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (3)
1. a kind of naphthalene method phthalic anhydride precondenser device, including some shell and tube precondensers（1）With some switch condensers
（2）, it is characterised in that every switch condenser（2）A corresponding shell and tube precondenser（1）, the shell and tube
Precondenser（1）Charging aperture it is in parallel, the shell and tube precondenser（1）Discharging opening and the corresponding switch condenser
（2）Charging aperture connection simultaneously with other shell and tube precondensers（1）Discharging opening it is in parallel；The switch condenser（2）'s
Discharging opening is in parallel, the switch condenser（2）Gas outlet it is in parallel.
A kind of 2. naphthalene method phthalic anhydride precondenser device according to claim 1, it is characterised in that the switch condenser
（2）Gas outlet be connected with burning facility.
A kind of 3. naphthalene method phthalic anhydride precondenser device according to claim 1, it is characterised in that the switch condenser
（2）Discharging opening be connected with thick acid anhydride tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720785299.5U CN206989731U (en) | 2017-07-01 | 2017-07-01 | A kind of naphthalene method phthalic anhydride precondenser device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720785299.5U CN206989731U (en) | 2017-07-01 | 2017-07-01 | A kind of naphthalene method phthalic anhydride precondenser device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206989731U true CN206989731U (en) | 2018-02-09 |
Family
ID=61400591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720785299.5U Active CN206989731U (en) | 2017-07-01 | 2017-07-01 | A kind of naphthalene method phthalic anhydride precondenser device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206989731U (en) |
-
2017
- 2017-07-01 CN CN201720785299.5U patent/CN206989731U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20160216033A1 (en) | Method For Recycling Residual Heat and Dust In Flue Gas During Reclaimed Copper Refining | |
| CN105561616B (en) | A kind of gasification ash water low pressure flash heat-energy utilizing device and its heat energy utilization method | |
| CN103756692A (en) | Coke oven tedge waste heat recovery device | |
| CN102249271B (en) | Tube array and remaining tank dissolving-out system and method for gibbsite bauxite | |
| CN206989731U (en) | A kind of naphthalene method phthalic anhydride precondenser device | |
| CN204115519U (en) | A kind of built-in lower perforated plate formula graphite heat exchanger | |
| CN205760487U (en) | A kind of yellow phosphoric tail gas absorption plant | |
| CN209501250U (en) | A kind of trimethyl centrifuge exhaust emissions solvent adsorption recyclable device | |
| CN204213956U (en) | A kind of boiler smoke step waste heat recovery economizer | |
| CN209696311U (en) | A kind of novel thin sulfuric acid thickener | |
| CN202339122U (en) | Gas cooling device | |
| CN206934771U (en) | A kind of naphthalene method phthalic anhydride evaporator | |
| CN205619359U (en) | Device is recycled to tail gas of boiler | |
| CN205317004U (en) | Calcination material waste heat recovery device in spodumene preparation lithium carbonate production technology | |
| CN206027141U (en) | Be used for refine crystallization device of chlorophenol | |
| CN206310577U (en) | Smeltery's low temperature exhaust heat recovery system | |
| CN205746786U (en) | Waste heat boiler is from deaerating type of cycles equipment | |
| CN205878133U (en) | Steam generator distilled water recycling system | |
| CN204005913U (en) | Modified methylaniline steam condensate recycling system | |
| CN203999451U (en) | 10000 tons of adjacent first heat reclaim units | |
| CN209714324U (en) | A kind of novel dilute sulfuric acid concentration purifying plant | |
| CN202808404U (en) | Double-acting phase change seawater desalting device | |
| CN203479090U (en) | Combined pressure-resistant enameled condenser | |
| CN202808423U (en) | Seawater-based water treatment system | |
| CN208292987U (en) | Heating and cooling structure for fermentor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 061100 Industrial Zone, Luqiao Town, Huanghua City, Cangzhou City, Hebei Province Patentee after: Xinnuo Lixing (Huanghua City) Group Co.,Ltd. Address before: 061100 Industrial Zone, Luqiao Town, Huanghua City, Cangzhou City, Hebei Province Patentee before: HUANGHUA XINNUO LIXING FINE CHEMICAL STOCK CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |