CN203392852U - Interlocking signal system for preventing hydrogen chloride gas from being subjected to superchlorination - Google Patents
Interlocking signal system for preventing hydrogen chloride gas from being subjected to superchlorination Download PDFInfo
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- CN203392852U CN203392852U CN201320486584.9U CN201320486584U CN203392852U CN 203392852 U CN203392852 U CN 203392852U CN 201320486584 U CN201320486584 U CN 201320486584U CN 203392852 U CN203392852 U CN 203392852U
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- hydrogen
- chlorine
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- hydrogen chloride
- synthetic furnace
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Abstract
The utility model relates to the field of chlor-alkali production processes, and particularly discloses an interlocking signal system for preventing hydrogen chloride gas from being subjected to superchlorination. The interlocking signal system comprises a pressure sensor, a hydrogen control valve, a chlorine control valve, a gas supplying valve, an acid making valve and a control system, wherein the pressure sensor is arranged on a hydrogen inlet pipe of a hydrogen chloride synthetic furnace, the hydrogen control valve and the chlorine control valve are respectively arranged on a hydrogen inlet pipe and a chlorine inlet pipe, the gas supplying valve and the acid making valve are arranged on a gas outlet pipe of the hydrogen chloride synthetic furnace, and the control system is respectively connected with the pressure sensor and all the valves. The interlocking signal system is capable of preventing a synthetic process of a hydrogen chloride gas from generating incompletely combusting chlorine, thus the superchlorination of the hydrogen chloride gas is immediately controlled, the terrible accidents such as combustion and explosion caused by an acetylene reaction of excessive free chlorine in hydrogen chloride and synthesized chloroethylene are avoided, the hydrogen chloride synthetic furnace and equipment in subsequent procedures are protected, the labor force is reduced, and the work efficiency is improved.
Description
Technical field
The utility model relates to chlor-alkali production technology field, relate in particular to a kind of while preventing that hydrogenchloride is synthetic hydrogen chloride gas cross the interlocking signal system of chlorine.
Background technology
In process of production, hydrogen and chlorine synthetic furnace internal combustion generate hydrogenchloride be together with extremely crucial production link.If it is improper that hydrogen and chlorine proportioning are adjusted, can cause hydrogenchloride to contain unburnt chlorine (being called for short " crossing chlorine "), these chlorine can be fed in vinylchlorid synthesizer with hydrogen chloride gas, when the concentration of chlorine surpasses certain value, excessive free chlorine can with the acetylene generation vigorous reaction of synthesizing chloroethylene, cause the serious accidents such as burning and blast, to production work, bring very big security threat.In existing hydrogen chloride synthetic furnace when there is chlorine phenomenon, operator cannot effectively regulate common within a short period of time, cannot control in time hydrogen chloride gas and cross chlorine, thereby cannot avoid the generation of above-mentioned serious accident.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide and a kind ofly prevents that hydrogen chloride gas from crossing the interlocking signal system of chlorine, to prevent because chlorine content in hydrogen chloride gas is excessive, and the generation of the security incidents such as the burning causing and blast.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of and has prevented that hydrogen chloride gas from crossing the interlocking signal system of chlorine, comprise pressure transmitter, hydrogen control valve, chlorine control valve, air delivery valve, do sour valve and Controlling System, described pressure transmitter is located on the hydrogen gas pipe of hydrogen chloride synthetic furnace, described hydrogen control valve and chlorine control valve are located at respectively on the hydrogen gas pipe and chlorine inlet pipe of hydrogen chloride synthetic furnace, described air delivery valve and doing on the escape pipe that sour valve is all located at hydrogen chloride synthetic furnace, described Controlling System is connected with each valve with pressure transmitter respectively.
Preferably, one end of described air delivery valve is connected with the escape pipe of hydrogen chloride synthetic furnace, and the other end is connected with vinylchlorid synthesizer, and described Zuo Suanfa one end is connected with the escape pipe of hydrogen chloride synthetic furnace, and the other end is connected with the resorber of manufacturing hydrochloric acid.
Preferably, described hydrogen control valve comprises hydrogen regulating valve and hydrogen trip valve, and described chlorine control valve comprises chlorine variable valve and chlorine trip valve.
Preferably, described hydrogen trip valve is the hydrogen inlet near hydrogen chloride synthetic furnace with respect to hydrogen regulating valve, and described chlorine trip valve is the chlorine inlet mouth near hydrogen chloride synthetic furnace with respect to chlorine variable valve.
(3) beneficial effect
The interlocking signal system that prevents that hydrogen chloride gas from crossing chlorine of the present utility model produces interlocking signal according to the variation of hydrogen pressure in the hydrogen gas pipe of hydrogen chloride synthetic furnace, by Controlling System regulating and controlling valve, trip valve, air delivery valve and make the switch of sour valve etc., prevent from producing unburnt chlorine in the building-up process of hydrogen chloride gas, control timely hydrogen chloride gas and cross chlorine, the serious accidents such as burning that the acetylene reaction of free chlorine excessive in hydrogenchloride and synthesizing chloroethylene causes and blast have been avoided, hydrogen chloride synthetic furnace and postorder equipment thereof are played a protective role, simultaneously, also reduced labor force, realized the object of optimizing personnel, guaranteed security of system, stable, produce continuously.
Accompanying drawing explanation
Fig. 1 is that the hydrogen chloride gas that prevents of the utility model embodiment is crossed the structure iron of the interlocking signal system of chlorine.
In figure, 1: pressure transmitter; 2: hydrogen regulating valve; 3: chlorine variable valve; 4: hydrogen trip valve; 5: chlorine trip valve; 6: air delivery valve; 7: make sour valve; 8: hydrogen chloride synthetic furnace.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but can not be used for limiting scope of the present utility model.
As shown in Figure 1, the interlocking signal system that the placement hydrogen chloride gas of the present embodiment is crossed chlorine comprises pressure transmitter 1, hydrogen control valve, chlorine control valve, air delivery valve 6, does sour valve 7 and Controlling System.Pressure transmitter 1 is located on the hydrogen gas pipe of hydrogen chloride synthetic furnace 8, for detection of the hydrogen pressure in hydrogen gas pipe; Hydrogen control valve comprises hydrogen regulating valve 2 and the hydrogen trip valve 4 on the hydrogen gas pipe that is located at hydrogen chloride synthetic furnace 8, hydrogen regulating valve 2 is for regulating the air input of hydrogen, hydrogen trip valve 4 is for cutting off or opening hydrogen gas pipe, and the position of hydrogen trip valve 4 is more close to the hydrogen inlet of hydrogen chloride synthetic furnace 8 with respect to the position of hydrogen regulating valve 2; Chlorine control valve comprises chlorine variable valve 3 and the chlorine trip valve 5 in the chlorine inlet pipe that is located at hydrogen chloride synthetic furnace 8, chlorine variable valve 3 is for regulating the air input of chlorine, chlorine trip valve 5 is for cutting off or opening chlorine inlet pipe, and the position of chlorine trip valve 5 is more close to the chlorine inlet mouth of hydrogen chloride synthetic furnace 8 with respect to the position of chlorine variable valve 3; Escape pipe Shang，Qi one end that air delivery valve 6 is located at hydrogen chloride synthetic furnace 8 is connected with the escape pipe of hydrogen chloride synthetic furnace 8, and the other end is connected with vinylchlorid synthesizer, for deliver to vinylchlorid synthesis system using hydrogen chloride gas as synthesis material; Making sour valve 7 is located on the escape pipe of hydrogen chloride synthetic furnace 8, and be connected with the escape pipe of hydrogen chloride synthetic furnace 8 with air delivery valve 6 ，Qi in parallel one end, the other end is connected with the resorber of manufacturing hydrochloric acid, for hydrogen chloride gas is delivered to resorber, high purity hydrochloric acid after water absorbs; Described Controlling System regulates meal 2, chlorine variable valve 3, hydrogen trip valve 4, chlorine trip valve 5, air delivery valve 6 and makees sour valve 7 with pressure transmitter 1 and pressure transmitter 1, hydrogen respectively and is connected, for receiving the hydrogen pressure value of the hydrogen gas pipe of the hydrogen chloride synthetic furnace 8 that pressure transmitter 1 detects, and control each and according to default interlocking value, control the switch of each valve.
The hydrogen chloride gas that prevents of the present embodiment is crossed the interlocking signal system of chlorine and can be provided on many hydrogen chloride synthetic furnaces simultaneously, the Controlling System of each interlocking signal system is combined into one, adopt a DCS Controlling System, DCS Controlling System receives the hydrogen pressure that the pressure transmitter of a plurality of hydrogen chloride synthetic furnaces detects simultaneously, and the switch of each valve of a plurality of hydrogen chloride synthetic furnaces of control correspondence simultaneously, realized the same control of a plurality of hydrogen chloride synthetic furnaces, greatly reduced labor force, optimize personnel's configuration, improved production efficiency.
Utilize the interlocking signal system of the present embodiment to prevent that hydrogen chloride gas from crossing the method for chlorine and comprising the following steps:
S1. the interlocking value of hydrogen pressure in the hydrogen gas pipe of a default hydrogen chloride synthetic furnace 8 in Controlling System, the standard value of hydrogen pressure in hydrogen gas pipe when described interlocking value works lower than hydrogen chloride synthetic furnace, while being 80kpa as the standard value of hydrogen pressure, the interlocking value of hydrogen pressure can be 60kpa;
S2. by pressure transmitter 1, detect the hydrogen pressure of the hydrogen gas pipe of hydrogen chloride synthetic furnace 8, and by the data transmission detecting to Controlling System;
S3. adjust the take-off equipment of hydrogen and chlorine, described take-off equipment is the source of hydrogen and chlorine, it is connected with chlorine inlet pipe with hydrogen gas pipe, by adjusting described take-off equipment, make the hydrogen gas pipe of hydrogen chloride synthetic furnace 8 and the gaseous tension of chlorine inlet pipe reach standard value, now, hydrogen regulating valve 2, hydrogen trip valve 4, chlorine variable valve 3, chlorine trip valve 5 and air delivery valve 6 are opened, making sour valve 7 closes, hydrogen chloride synthetic furnace 8 normal operations, synthetic hydrogen chloride gas is sent to vinylchlorid synthesizer, synthesizing chloroethylene gas;
S4. when the hydrogen pressure value of the hydrogen gas pipe of pressure transmitter inspection 1 hydrogen chloride synthetic furnace measuring 8 is during lower than default interlocking value, as changing, hydrogen and chlorine pressure reduction cause hydrogen pressure to reduce, or enter stove hydrogen and chlorine flowrate ratio regulate improper, Controlling System is controlled hydrogen regulating valve 2, hydrogen trip valve 4, chlorine variable valve 3, chlorine trip valve 5 and air delivery valve 6 are closed, making sour valve 7 opens, hydrogen chloride gas in hydrogen chloride synthetic furnace is sent to resorber, high purity hydrochloric acid after water absorbs, now, adjust the take-off equipment of hydrogen and chlorine, hydrogen pressure in the hydrogen gas pipe of increase hydrogen chloride synthetic furnace,
The hydrogen pressure value of the hydrogen gas pipe of the hydrogen chloride synthetic furnace 8 S5. detecting when pressure transmitter 1 is during higher than default interlocking value, Controlling System is controlled hydrogen regulating valve 2, hydrogen trip valve 4, chlorine variable valve 3, chlorine trip valve 5 and air delivery valve 6 and is opened, make sour valve 7 and close, hydrogen chloride synthetic furnace continues normal operation.
While adopting DCS Controlling System to control a plurality of hydrogen chloride synthetic furnace, each hydrogen chloride synthetic furnace all carries out interlocking signal control as stated above.
The interlocking signal system that prevents that hydrogen chloride gas from crossing chlorine of the present utility model produces interlocking signal according to the variation of hydrogen pressure in the hydrogen gas pipe of hydrogen chloride synthetic furnace, by Controlling System regulating and controlling valve, trip valve, air delivery valve and make the switch of sour valve etc., prevent from producing unburnt chlorine in the building-up process of hydrogen chloride gas, control timely hydrogen chloride gas and cross chlorine, the serious accidents such as burning that the acetylene reaction of free chlorine excessive in hydrogenchloride and synthesizing chloroethylene causes and blast have been avoided, hydrogen chloride synthetic furnace and postorder equipment thereof are played a protective role, simultaneously, also reduced labor force, realized the object of optimizing personnel, guaranteed security of system, stable, produce continuously.
Embodiment of the present utility model provides for example with for the purpose of describing, and is not exhaustively or by the utility model to be limited to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the utility model design is suitable for specific end use.
Claims (4)
1. one kind prevents that hydrogen chloride gas from crossing the interlocking signal system of chlorine, it is characterized in that, comprise pressure transmitter, hydrogen control valve, chlorine control valve, air delivery valve, do sour valve and Controlling System, described pressure transmitter is located on the hydrogen gas pipe of hydrogen chloride synthetic furnace, described hydrogen control valve and chlorine control valve are located at respectively on the hydrogen gas pipe and chlorine inlet pipe of hydrogen chloride synthetic furnace, described air delivery valve and doing on the escape pipe that sour valve is all located at hydrogen chloride synthetic furnace, described Controlling System is connected with each valve with pressure transmitter respectively.
2. according to claim 1ly prevent that hydrogen chloride gas from crossing the interlocking signal system of chlorine, it is characterized in that, one end of described air delivery valve is connected with the escape pipe of hydrogen chloride synthetic furnace, the other end is connected with vinylchlorid synthesizer, described Zuo Suanfa one end is connected with the escape pipe of hydrogen chloride synthetic furnace, and the other end is connected with the resorber of manufacturing hydrochloric acid.
3. according to claim 1ly prevent that hydrogen chloride gas from crossing the interlocking signal system of chlorine, it is characterized in that, described hydrogen control valve comprises hydrogen regulating valve and hydrogen trip valve, and described chlorine control valve comprises chlorine variable valve and chlorine trip valve.
4. according to claim 3ly prevent that hydrogen chloride gas from crossing the interlocking signal system of chlorine, it is characterized in that, described hydrogen trip valve is the hydrogen inlet near hydrogen chloride synthetic furnace with respect to hydrogen regulating valve, and described chlorine trip valve is the chlorine inlet mouth near hydrogen chloride synthetic furnace with respect to chlorine variable valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486584.9U CN203392852U (en) | 2013-08-07 | 2013-08-07 | Interlocking signal system for preventing hydrogen chloride gas from being subjected to superchlorination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486584.9U CN203392852U (en) | 2013-08-07 | 2013-08-07 | Interlocking signal system for preventing hydrogen chloride gas from being subjected to superchlorination |
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| Publication Number | Publication Date |
|---|---|
| CN203392852U true CN203392852U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486584.9U Withdrawn - After Issue CN203392852U (en) | 2013-08-07 | 2013-08-07 | Interlocking signal system for preventing hydrogen chloride gas from being subjected to superchlorination |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395745A (en) * | 2013-08-07 | 2013-11-20 | 内蒙古君正化工有限责任公司 | Interlock signal system for preventing perchlorination of hydrogen chloride gas, and method thereof |
| CN106406255A (en) * | 2016-08-16 | 2017-02-15 | 新疆天业（集团）有限公司 | DCS control method for gas supply process in hydrogen chloride production |
| CN106444651A (en) * | 2016-08-16 | 2017-02-22 | 新疆天业（集团）有限公司 | DCS control method of acid making process in hydrogen chloride production |
-
2013
- 2013-08-07 CN CN201320486584.9U patent/CN203392852U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395745A (en) * | 2013-08-07 | 2013-11-20 | 内蒙古君正化工有限责任公司 | Interlock signal system for preventing perchlorination of hydrogen chloride gas, and method thereof |
| CN103395745B (en) * | 2013-08-07 | 2015-12-23 | 内蒙古君正化工有限责任公司 | Prevent hydrogen chloride gas from crossing the interlocking signal system and method for chlorine |
| CN106406255A (en) * | 2016-08-16 | 2017-02-15 | 新疆天业（集团）有限公司 | DCS control method for gas supply process in hydrogen chloride production |
| CN106444651A (en) * | 2016-08-16 | 2017-02-22 | 新疆天业（集团）有限公司 | DCS control method of acid making process in hydrogen chloride production |
| CN106444651B (en) * | 2016-08-16 | 2019-03-19 | 天能化工有限公司 | The DCS control method of relieving haperacidity process in hydrogen chloride production |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140115 Effective date of abandoning: 20151223 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |