CN202961940U - Secondary recovery device of steam at top of tower - Google Patents
Secondary recovery device of steam at top of tower Download PDFInfo
- Publication number
- CN202961940U CN202961940U CN 201220571128 CN201220571128U CN202961940U CN 202961940 U CN202961940 U CN 202961940U CN 201220571128 CN201220571128 CN 201220571128 CN 201220571128 U CN201220571128 U CN 201220571128U CN 202961940 U CN202961940 U CN 202961940U
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- condenser
- acid
- return tank
- gas
- primary
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Abstract
The utility model discloses a secondary recovery device of steam at the top of a tower. The secondary recovery device comprises a secondary acidifying tower, a tertiary acidifying tower rebuilder, a primary preheater, a primary acidifying tower rebuilder, a primary condenser, a secondary condenser, a condenser collection tank and a return tank; the top of the secondary acidifying tower is respectively connected with the primary condenser, the primary preheater and the primary acidifying tower rebuilder; the primary condenser is connected with the condenser collection tank; the condenser collection tank is respectively connected with the secondary condenser and the return tank; the secondary condenser is connected with the return tank; the return tank is provided with a gas-liquid separation tank; the tail gas separated by the gas-liquid separation tank is connected with the inlet of the primary condenser; and the inlet of the gas-liquid separation tank is respectively connected with the tertiary acidifying tower rebuilder, the primary preheater and the primary acidifying tower rebuilder.
Description
Technical field
The utility model relates to the technology that a kind of overhead vapours reasonable distribution is used, reduced energy consumption, relates in particular to a kind of second-time recycling device of overhead vapours.
Background technology
in the production process of formic acid, the diacid column overhead produces a large amount of rising steam, the processing mode of these steam replaces steam to use for being assigned in other heat exchangers, this processing mode can reduce the use amount of steam, reduce energy resource consumption, but exist at present the drawback on a kind of the use, be exactly that arranging of distribution channels exists defective, present distribution channels is: tower top removes all to be designed with on each heat transmission equipment valve, and going there is no valve on the pipeline of overhead condenser, the condensate liquid of each heat transmission equipment directly enters in return tank besides, cause gas-liquid mixed, not only affect the stable of return tank liquid level, intermittent delivery appears in the distribution that has directly affected overhead vapours simultaneously due to the increase of condensate liquid resistance, a large amount of overhead vapours is processed by tail gas emptying.The existence of this phenomenon not only makes overhead vapours can not get optimizing and uses, and also the stable operation of two acid towers is brought impact.
The utility model content
The shortcoming that exists for solving prior art, the utility model provides a kind of second-time recycling device of overhead vapours.
The technical solution adopted in the utility model is as follows:
a kind of second-time recycling device of overhead vapours, comprise two acid towers, three acid tower reboilers, the one-level preheater, one acid tower reboiler, first-stage condenser, secondary condenser, condenser feeder and return tank, the top of described two acid towers respectively with first-stage condenser, the one-level preheater, one acid tower reboiler is connected with first-stage condenser, described first-stage condenser is connected with the condenser feeder, described condenser feeder respectively with secondary condenser, return tank is connected, described secondary condenser is connected with return tank again, described return tank is provided with the gas-liquid diversion cans, the isolated tail gas of described gas-liquid diversion cans is connected to the entrance of first-stage condenser, the entrance of gas-liquid diversion cans respectively with three acid tower reboilers, the one-level preheater, one acid tower reboiler is connected.
The entrance of described three acid tower reboilers, one-level preheater, an acid tower reboiler is respectively equipped with control valve I, control valve II, control valve III.
The pipeline that the top of described two acid towers is connected with first-stage condenser is provided with the control valve IV.
Described knockout drum is of a size of φ 530mm*600mm.
The beneficial effect that the utility model produces: in the utility model, the gas-liquid diversion cans is set on return tank, realized the secondary recovery of the isolated tail gas in return tank the inside, and condensate liquid and steam with the generation of three acid tower reboilers, one-level preheater, an acid tower reboiler, again be transported to return tank, when having realized gas-liquid separation, not only stablized the return tank liquid level, reduced the resistance of condensate liquid, and made whole system stable.Be provided with the control valve IV in addition on the top of two acid towers and pipeline that first-stage condenser is connected, the control valve IV can be adjusted according to tower top pressure, makes the pressure stability of whole system, and then has guaranteed Systems balanth.
Description of drawings
Fig. 1 structural representation of the present utility model;
1. 2 acid towers in figure, 2. first-stage condenser, 3. secondary condenser, 4. condenser feeder, 5. return tank, 6. gas-liquid diversion cans, 7. control valve IV, 8. pipeline, 9. three acid tower reboilers, 10. one-level preheater, 11. 1 acid tower reboilers, 12. control valve I, 13. control valve II, 14. control valve III.
The specific embodiment
as shown in Figure 1, the utility model comprises two acid towers 1, three acid tower reboilers 9, one-level preheater 10, one acid tower reboiler 11, first-stage condenser 2, secondary condenser 3, condenser feeder 4 and return tank 5, the top of two acid towers 1 respectively with first-stage condenser 2, one-level preheater 10, one acid tower reboiler 11 is connected with first-stage condenser 2, first-stage condenser 2 is connected with condenser feeder 4, condenser feeder 4 respectively with secondary condenser 3, return tank 5 is connected, secondary condenser 3 is connected with return tank 5 again, return tank 5 is provided with gas-liquid diversion cans 6, the isolated tail gas of gas-liquid diversion cans 6 is connected to the entrance of first-stage condenser 2 by pipeline 8, the entrance of gas-liquid diversion cans 6 respectively with three acid tower reboilers 9, one-level preheater 10, the outlet of one acid tower reboiler 11 is connected.The entrance of three acid tower reboilers 9, one-level preheater 10, an acid tower reboiler 11 is respectively equipped with control valve I 12, control valve II 13, control valve III 14.The pipeline 8 that the top of two acid towers 1 is connected with first-stage condenser 2 is provided with control valve IV 7.
Claims (4)
1. the second-time recycling device of an overhead vapours, comprise two acid towers, three acid tower reboilers, the one-level preheater, one acid tower reboiler, first-stage condenser, secondary condenser, condenser feeder and return tank, the top of described two acid towers respectively with first-stage condenser, the one-level preheater, one acid tower reboiler is connected with first-stage condenser, described first-stage condenser is connected with the condenser feeder, described condenser feeder respectively with secondary condenser, return tank is connected, described secondary condenser is connected with return tank again, it is characterized in that: described return tank is provided with the gas-liquid diversion cans, the isolated tail gas of described gas-liquid diversion cans is connected to the entrance of first-stage condenser, the entrance of gas-liquid diversion cans respectively with three acid tower reboilers, the one-level preheater, one acid tower reboiler is connected.
2. the second-time recycling device of a kind of overhead vapours as claimed in claim 1, it is characterized in that: the entrance of described three acid tower reboilers, one-level preheater, an acid tower reboiler is respectively equipped with control valve I, control valve II, control valve III.
3. the second-time recycling device of a kind of overhead vapours as claimed in claim 1, it is characterized in that: the pipeline that the top of described two acid towers is connected with first-stage condenser is provided with the control valve IV.
4. the second-time recycling device of a kind of overhead vapours as claimed in claim 1, it is characterized in that: described knockout drum is of a size of
530mm*600mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220571128 CN202961940U (en) | 2012-11-01 | 2012-11-01 | Secondary recovery device of steam at top of tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220571128 CN202961940U (en) | 2012-11-01 | 2012-11-01 | Secondary recovery device of steam at top of tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202961940U true CN202961940U (en) | 2013-06-05 |
Family
ID=48503071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220571128 Expired - Fee Related CN202961940U (en) | 2012-11-01 | 2012-11-01 | Secondary recovery device of steam at top of tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202961940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974118A (en) * | 2012-11-01 | 2013-03-20 | 聊城煤杉新材料科技有限公司 | Secondary recovery apparatus for tower top steam |
-
2012
- 2012-11-01 CN CN 201220571128 patent/CN202961940U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974118A (en) * | 2012-11-01 | 2013-03-20 | 聊城煤杉新材料科技有限公司 | Secondary recovery apparatus for tower top steam |
| CN102974118B (en) * | 2012-11-01 | 2014-10-08 | 聊城煤杉新材料科技有限公司 | Secondary recovery apparatus for tower top steam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131101 |