CN205003557U - Cis -butenedioic anhydride reactor moisture content automatic control device - Google Patents
Cis -butenedioic anhydride reactor moisture content automatic control device Download PDFInfo
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- CN205003557U CN205003557U CN201520746701.XU CN201520746701U CN205003557U CN 205003557 U CN205003557 U CN 205003557U CN 201520746701 U CN201520746701 U CN 201520746701U CN 205003557 U CN205003557 U CN 205003557U
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- butenedioic anhydride
- moisture content
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Abstract
The utility model provides a cis -butenedioic anhydride reactor moisture content automatic control device, the moisturizing device of in locating the cis -butenedioic anhydride reaction system, the moisturizing device is including the moisturizing governing valve that is used for controlling the water yield, the moisturizing governing valve links to each other with control system, the cis -butenedioic anhydride reaction system is still including setting up in the warm and humid acidimeter of the section of thick bamboo department of induced drafting, warm and humid acidimeter links to each other with control system. The utility model discloses following beneficial effect has: the utility model discloses can be through carrying out real -time sampling, analysis to near the atmosphere of air compressor machine sunction inlet to moisture content through in the air of control system in to the reactor feed calculates in succession, with the nimble volume of controlling the moisturizing of these developments, thereby ensures that the moisture content content in the reactor feed is stable, and for infrared analysis appearance scheme, this device investment economizes, and control is simple, reliably.
Description
Technical field
The utility model belongs to field of chemical equipment, is specifically related to a kind of cis-butenedioic anhydride reactor moisture content automaton.
Background technology
Cis-butenedioic anhydride reactor uses air and normal butane to be primary raw material, and under the effect of maleic anhydride catalyst, reaction generates cis-butenedioic anhydride.As the publication number Chinese invention patent " technological process of continuous production of succinic anhydride from hydrogenation of maleic anhydride coproduction succinic acid " that is CN103570650 discloses a kind of technological process of continuous production of succinic anhydride from hydrogenation of maleic anhydride coproduction succinic acid.
The catalyzer used in cis-butenedioic anhydride course of reaction, needs to carry out supplementary moisture content according to atmospheric environment humidity in course of normal operation, to control the humidity of reactor feed gas, thus plays the effect regulating catalyst performance.At present, cis-butenedioic anhydride reactor feed water content carries out sampling analysis mainly through infrared spectrum analyser, but due to the absorption bands of hydrone wider, the error that infrared spectrum analyser detects moisture content is large, therefore detects data and is difficult to as operation reference.Simultaneously because the temperature of air, humidity are in the process of change all the time, the water content in air also changes thereupon.After moisture control is inaccurate or malfunctioning, the water content in reactor feed is uncontrollable, affects catalyst performance, and course of reaction easily fluctuates, and if things go on like this will affect the serviceable life of catalyzer.
Therefore, the utility model has made improvement this side up, provides a kind of cis-butenedioic anhydride reactor moisture content automaton.
Utility model content
The utility model is not enough for prior art, provides a kind of reduced investment for cis-butenedioic anhydride reactor, controls easy moisture content automaton.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of cis-butenedioic anhydride reactor moisture content automaton, comprise the water replanishing device be located in cis-butenedioic anhydride reactive system, described water replanishing device comprises the moisturizing variable valve for controlling the water yield, described moisturizing variable valve is connected with control system, described cis-butenedioic anhydride reactive system also comprises the Hygrothermograph being arranged at wind sucting tube place, and described Hygrothermograph is connected with control system.
In prior art, extremely bother, traditional infrared detection method low precision as the water content detection in the air in the air of cis-butenedioic anhydride reaction raw materials and normal butane, error is large, is therefore difficult to be applied in actual production.The utility model has made improvement to prior art, in cis-butenedioic anhydride reactive system, Hygrothermograph is set, the humiture data of the air of air inlet are reached control system by this Hygrothermograph, control system calculates the water yield of needs by temperature, humidity data, and control the water yield by controlling moisturizing variable valve, reach the object that moisture controls automatically, very convenient.
As preferably, described water replanishing device also comprises the refill flow meter for adding up the water yield, can add up total water current amount.
As preferably, described cis-butenedioic anhydride reactor moisture content automaton also comprises the air compressor machine for providing air, and described wind sucting tube is located on air compressor machine.
As preferably, described control system is DCS control system.
Compared with prior art, the utility model has following beneficial effect: the utility model can by carrying out real-time sampling, analysis to the air near air compressor machine suction inlet, and by control system, Continuous plus is carried out to the moisture content in the air in reactor feed, rate of water make-up is controlled with this dynamic flexible, thus guarantee that the water content in reactor feed is stablized, relative to infrared spectrum analyser scheme, this plant investment is economized, and controls simple, reliable.
Accompanying drawing explanation
Fig. 1 is the utility model process flow diagram.
Fig. 2 is the utility model Automatic Control Theory figure.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
See Fig. 1, a kind of cis-butenedioic anhydride reactor moisture content automaton, comprise the water replanishing device be located in cis-butenedioic anhydride reactive system, described water replanishing device comprises the moisturizing variable valve 8 for controlling the water yield, described moisturizing variable valve 8 is connected with control system 20, described cis-butenedioic anhydride reactive system also comprises the Hygrothermograph 2 being arranged at wind sucting tube 1 place, and described Hygrothermograph 2 is connected with control system 20; Described water replanishing device also comprises the refill flow meter 9 for adding up the water yield, and in the present embodiment, also comprise the air compressor machine 4 for providing air, described wind sucting tube 1 is located on air compressor machine 4; Described control system 20 is DCS control system.
See Fig. 2, control program is loaded with in DCS control system in the present embodiment, the temperature data that this control program can detect according to Hygrothermograph 2 and humidity data, and in conjunction with air mass flow 3 and normal butane flow 6, the rate of water make-up 7 of reactor needs is obtained by the water content inverse of setting, again by rate of water make-up 7 Signal transmissions to moisturizing variable valve 8, jointly realized the automatic control of rate of water make-up by moisturizing variable valve 8 and refill flow meter 9.
During work, a kind of cis-butenedioic anhydride reactor moisture content automaton of the present utility model, send in pipeline by air compressor machine 4 by air mass flow 3, normal butane flow 6 enters in pipeline, rate of water make-up 7 through automatically regulating enters in pipeline, and after mixing, forming reactions material liquid 5 enters in reactor 10 and reacts.Through above-mentioned technological process and the automatic realization controlled, the control accuracy of reactor feed moisture content improves greatly, and the reaction conditions of catalyzer is optimized, and system and device is run more stable, is conducive to the life cycle of extending catalyst.
Claims (4)
1. a cis-butenedioic anhydride reactor moisture content automaton, comprise the water replanishing device be located in cis-butenedioic anhydride reactive system, described water replanishing device comprises the moisturizing variable valve (8) for controlling the water yield, it is characterized in that, described moisturizing variable valve (8) is connected with control system (20), described cis-butenedioic anhydride reactive system also comprises the Hygrothermograph (2) being arranged at wind sucting tube (1) place, and described Hygrothermograph (2) is connected with control system (20).
2. a kind of cis-butenedioic anhydride reactor moisture content automaton according to claim 1, is characterized in that, described water replanishing device also comprises the refill flow meter (9) for adding up the water yield.
3. a kind of cis-butenedioic anhydride reactor moisture content automaton according to claim 1 and 2, it is characterized in that, also comprise the air compressor machine (4) for providing air, described wind sucting tube (1) is located on air compressor machine (4).
4. a kind of cis-butenedioic anhydride reactor moisture content automaton according to claim 3, it is characterized in that, described control system (20) is DCS control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746701.XU CN205003557U (en) | 2015-09-25 | 2015-09-25 | Cis -butenedioic anhydride reactor moisture content automatic control device |
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| CN201520746701.XU CN205003557U (en) | 2015-09-25 | 2015-09-25 | Cis -butenedioic anhydride reactor moisture content automatic control device |
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| CN205003557U true CN205003557U (en) | 2016-01-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497130A (en) * | 2017-10-04 | 2017-12-22 | 山东胜星化工有限公司 | A kind of benzene content control device |
| CN107963999A (en) * | 2016-10-19 | 2018-04-27 | 中国石化仪征化纤有限责任公司 | The method that vpo catalyst auxiliary agent water addition is controlled in MAH preparation process |
-
2015
- 2015-09-25 CN CN201520746701.XU patent/CN205003557U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107963999A (en) * | 2016-10-19 | 2018-04-27 | 中国石化仪征化纤有限责任公司 | The method that vpo catalyst auxiliary agent water addition is controlled in MAH preparation process |
| CN107963999B (en) * | 2016-10-19 | 2021-04-20 | 中国石化仪征化纤有限责任公司 | Method for controlling addition amount of VPO catalyst auxiliary agent water in MAH preparation process |
| CN107497130A (en) * | 2017-10-04 | 2017-12-22 | 山东胜星化工有限公司 | A kind of benzene content control device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |