CN207446212U - The safety instrumented systems of sulfur dioxide preparation facilities - Google Patents
The safety instrumented systems of sulfur dioxide preparation facilities Download PDFInfo
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- CN207446212U CN207446212U CN201721416914.1U CN201721416914U CN207446212U CN 207446212 U CN207446212 U CN 207446212U CN 201721416914 U CN201721416914 U CN 201721416914U CN 207446212 U CN207446212 U CN 207446212U
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- safety
- water passage
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- stop valve
- instrumented systems
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Abstract
The utility model is related to a kind of safety instrumented systems of sulfur dioxide preparation facilities,Belong to chemical industry equipment technical field,Including the chuck outside primary first-order equation kettle and reaction kettle,Reaction kettle is connected with feed passageway,Pressure detecting access,Temperature detection access,PH value detection path and safety relief access,Chuck is connected with Xun Huan water passage I,Further include secondary response kettle,The output of secondary response kettle is connected with condenser,Condenser cycles water passage II by outside and cools down,Feed passageway is equipped with metering pump,Safety relief access,Stop valve is equipped on Xun Huan water passage I and Xun Huan water passage II,Above equipment is set by safety instrumented systems interlocking and forms temperature safety circuit,Pressure security circuit and recirculated water safety return circuit,Overtemperature is occurring,In the case that superpressure or equipment corrosion are perforated,Reaction system releasing pressure automatically,Cut off circulating water pipeline,Stop charging,Whole system is made to be in safely controllable state.
Description
Technical field
The utility model is related to the safety instrumented systems of sulfur dioxide preparation facilities, belong to chemical industry equipment and technology neck
Domain.
Background technology
Sulfur trioxide method production sulfur dioxide is using sulfur trioxide, sulphur as raw material, and the concentrated sulfuric acid is anti-through two-stage for catalyst
Kettle is answered to generate sulfur dioxide, reaction process belongs to exothermic reaction.In the event of primary first-order equation kettle and condenser apparatus corrosion failure,
Easily cause highly exothermic after severe corrosive material contact recirculated water, existing preparation facilities is generally using reaction kettle, reaction system
Once generation overtemperature, superpressure, safety valve not timely take-off situations such as, larger security incident will be caused.
Utility model content
The purpose of the utility model is to overcome drawbacks described above existing for existing sulfur dioxide device, it is proposed that a kind of dioxy
Change the safety instrumented systems of sulphur preparation facilities, using safety instrumented systems, overtemperature, superpressure or equipment corrosion occurs in reaction system
In the case of perforation, reaction system releasing pressure automatically cuts off circulating water pipeline, stops charging, and whole system is made to be in safely controllable
State.
The utility model is realized using following technical solution：
A kind of safety instrumented systems of sulfur dioxide preparation facilities, including the chuck outside primary first-order equation kettle and reaction kettle,
It is characterized in that：Reaction kettle is connected with feed passageway, pressure detecting access, temperature detection access, pH value detection path and safety
It releases access, chuck is connected with cycle water passage I, further includes secondary response kettle, and the output of secondary response kettle is connected with condenser,
The condenser cycles water passage II by outside and cools down, and the feed passageway is equipped with metering pump, the safety
Release and be equipped with stop valve on access, cycle water passage I and cycle water passage II, the pressure detecting access, metering pump and
Stop valve on safety relief access interlocks to form pressure security circuit by safety instrumented systems, the temperature detection access
It interlocks to form temperature safety circuit by safety instrumented systems with metering pump, pH value detection path, metering pump and the safety
The stop valve released on access and cycle water passage interlocks to form recirculated water safety return circuit by safety instrumented systems.
Further, the cycling water passage I and Xun Huan water passage II are divided into inlet channel and water return pipeline.
Further, the pH value detection path is connected with the water return pipeline of Xun Huan water passage I and cycle water passage II.
Further, the stop valve on the Xun Huan water passage I includes stop valve XV-01 and stop valve XV-02.
Further, the stop valve on the Xun Huan water passage II includes stop valve XV-03 and stop valve XV-04.
The beneficial effects of the utility model are：
Using safety instrument (SIS) system, pass through charging in sulfur dioxide reaction process, recirculated water, pressure detecting
Interlock is added in in temperature detection access, realizes pressure security circuit, temperature safety circuit and recirculated water safety return circuit,
In the case where overtemperature, superpressure or equipment corrosion perforation occur for reaction system, reaction system releasing pressure automatically stops charging, cut-out
Circulating water pipeline makes whole system be in safely controllable state.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the safety instrumented systems of sulfur dioxide preparation facilities described in the utility model, including primary first-order equation
Chuck outside kettle and reaction kettle, reaction kettle are connected with feed passageway, pressure detecting access, temperature detection access, pH value detection
Access and safety relief access, chuck are connected with Xun Huan water passage I, further include secondary response kettle, and the output of secondary response kettle connects
Condenser is connected to, the condenser cycles water passage II by outside and cools down, and the feed passageway is equipped with metering pump,
Stop valve is equipped on the safety relief access, cycle water passage I and cycle water passage II, the pressure detecting is led to
Stop valve on road, metering pump and safety relief access interlocks to form pressure security circuit by safety instrumented systems, described
Temperature detection access and metering pump interlock to form temperature safety circuit by safety instrumented systems, the pH value detection path,
Metering pump interlocks to form cycling water security by safety instrumented systems with the stop valve on safety relief access and Xun Huan water passage
Circuit.Xun Huan water passage I and Xun Huan water passage II are divided into inlet channel and water return pipeline, and pH value detection path is led to recirculated water
Road I is connected with the water return pipeline of Xun Huan water passage II, and the stop valve cycled on water passage I includes stop valve XV-01 and stop valve
XV-02, the stop valve cycled on water passage II include stop valve XV-03 and stop valve XV-04.
The use process of the utility model is as follows：
The ceiling value and high ceiling value of set temperature and pressure in safety instrumented systems, and PH lower limit values are set.
(1) under safety instrumented systems control, temperature is high to alarm in limited time, and metering pump P-O1 is turned off in high limit interlocking, stops
The injection of molten sulfur；
(2) the high limit alarm of pressure, high limit interlocking turn off metering pump P-O1, stop the injection of molten sulfur, and open stop valve
XV-05 carries out safety relief；
(3) the pH meter pHIA-O1 and pHIA-02 in recirculated water water return pipeline, lower bound alarm, while metering pump is turned off in interlocking
P-O1 closes stop valve XV-O1, XV-02, XV-03, XV-04, cuts off circulating water pipeline, opens stop valve XV-05 and is let out
Pressure, simultaneous reactions object and product release, prevent from continuing to overflow soluble in water.
Certainly, the above is only the preferred embodiment of the utility model, it is impossible to is construed as limiting new to this practicality
The scope of embodiments of type.The utility model is also not limited to the example above, and those skilled in the art are in this reality
With all the changes and improvements made in new essential scope etc., the patent covering scope of the utility model should all be belonged to
It is interior.
Claims (5)
1. a kind of safety instrumented systems of sulfur dioxide preparation facilities, including the chuck outside primary first-order equation kettle and reaction kettle,
It is characterized in that：Reaction kettle is connected with feed passageway, pressure detecting access, temperature detection access, pH value detection path and safety and lets out
Access is put, chuck is connected with Xun Huan water passage I, further includes secondary response kettle, the output of secondary response kettle is connected with condenser, institute
It states condenser by outside cycle water passage II to cool down, the feed passageway is equipped with metering pump, and the safety is let out
It puts and is equipped with stop valve, pressure detecting access, metering pump and the peace on access, Xun Huan water passage I and Xun Huan water passage II
The full stop valve released on access interlocks to form pressure security circuit by safety instrumented systems, the temperature detection access and
Metering pump interlocks to form temperature safety circuit by safety instrumented systems, and the pH value detection path, metering pump and safety are let out
The stop valve put access and cycled on water passage interlocks to form recirculated water safety return circuit by safety instrumented systems.
2. the safety instrumented systems of sulfur dioxide preparation facilities according to claim 1, it is characterised in that：The cycling
Water passage I and Xun Huan water passage II are divided into inlet channel and water return pipeline.
3. the safety instrumented systems of sulfur dioxide preparation facilities according to claim 1, it is characterised in that：The pH value
Detection path is connected with the water return pipeline of Xun Huan water passage I and cycle water passage II.
4. the safety instrumented systems of sulfur dioxide preparation facilities according to claim 2, it is characterised in that：The cycling
Stop valve on water passage I includes stop valve XV-01 and stop valve XV-02.
5. the safety instrumented systems of sulfur dioxide preparation facilities according to claim 2, it is characterised in that：The cycling
Stop valve on water passage II includes stop valve XV-03 and stop valve XV-04.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416914.1U CN207446212U (en) | 2017-10-30 | 2017-10-30 | The safety instrumented systems of sulfur dioxide preparation facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416914.1U CN207446212U (en) | 2017-10-30 | 2017-10-30 | The safety instrumented systems of sulfur dioxide preparation facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207446212U true CN207446212U (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721416914.1U Active CN207446212U (en) | 2017-10-30 | 2017-10-30 | The safety instrumented systems of sulfur dioxide preparation facilities |
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| CN (1) | CN207446212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558351A (en) * | 2020-06-23 | 2020-08-21 | 湖北文理学院 | Device for controlling working circuit to be on or off at regular time through chemical reaction |
-
2017
- 2017-10-30 CN CN201721416914.1U patent/CN207446212U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558351A (en) * | 2020-06-23 | 2020-08-21 | 湖北文理学院 | Device for controlling working circuit to be on or off at regular time through chemical reaction |
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