CN209612617U - A kind of control system of falling slot of accident chlorine treatment equipment - Google Patents
A kind of control system of falling slot of accident chlorine treatment equipment Download PDFInfo
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- CN209612617U CN209612617U CN201920137955.XU CN201920137955U CN209612617U CN 209612617 U CN209612617 U CN 209612617U CN 201920137955 U CN201920137955 U CN 201920137955U CN 209612617 U CN209612617 U CN 209612617U
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- lye
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Abstract
The utility model embodiment provides a kind of control system of falling slot of accident chlorine treatment equipment, which includes waste chlorine absorption tower, the first lye circulating slot, the second lye circulating slot and DCS controller.The inlet and outlet of first lye circulating slot and the second lye circulating slot connect waste chlorine absorption tower by pipeline respectively, the inlet and outlet of the first lye circulating slot are equipped with the first internally piloted valve, the inlet and outlet of second lye circulating slot are equipped with the second internally piloted valve, and the first internally piloted valve and the second internally piloted valve are connect with DCS controller.The utility model detects the available chlorine content that chlorine gas absorption tower exports lye by effective chlorine detection module, and available chlorine content detected value is sent to DCS controller, when the judgement of DCS controller knows that available chlorine content is not less than default available chlorine content threshold value, DCS controller closes the first internally piloted valve and opens simultaneously the second internally piloted valve, complete the operation of falling slot, it realizes that remote automation falls slot, saves manpower, reduce costs.
Description
Technical field
The utility model embodiment is related to the slot of technical field of chlor-alkali production more particularly to a kind of accident chlorine treatment equipment
Control system.
Background technique
In chlor-alkali production or other production processes using chlorine as raw materials for production, it can usually generate a large amount of chlorine or contain
Chlorine exhaust gas, discharge can cause serious pollution to environment directly into environment, need to handle chlorine or chlorine contained exhaust gas.
The degree of automation of the technique of falling slot of traditional accident chlorine treatment equipment is lower, abnormal feelings occurs in chlor-alkali production system
Condition, when a large amount of chlorine enter accident chlorine treatment equipment, need site operation personnel manually fall slot, control difficulty it is larger, and expend
Manpower and material resources.If site operation personnel can not in time fall slot, will lead to the fast prompt drop of concentration of lye in accident chlorine treatment equipment
It is low, aggravation chlorine it is excessive, the state that causes the accident expand.
Utility model content
Lower, the defect spent human and material resources for the degree of automation of the existing accident chlorine treatment equipment technique of falling slot.This
Utility model embodiment provides a kind of control system of falling slot of accident chlorine treatment equipment.
The utility model embodiment provides a kind of control system of falling slot of accident chlorine treatment equipment, including waste chlorine absorbs
Tower, the first lye circulating slot, the second lye circulating slot and DCS controller；
The first lye circulating slot and the second lye circulating slot connect waste chlorine absorption tower by pipeline respectively, and described the
The inlet and outlet of one lye circulating slot are equipped with the first internally piloted valve, and the inlet and outlet of the second lye circulating slot are equipped with the second internally piloted valve；
First internally piloted valve and the second internally piloted valve are connect with DCS controller；
The chlorine gas absorption tower, which is exported on the pipeline of the first lye circulating slot import, is provided with effective chlorine detector, described
Effective chlorine detector is connect with DCS controller, for detecting the available chlorine content of chlorine gas absorption tower outlet lye and being sent to DCS
Controller, so that DCS controller is according to the switch of available chlorine content adjusting the first internally piloted valve and the second internally piloted valve.
Wherein, the first lye circulating slot and the second lye circulating slot connect waste chlorine by NaOH solution circulating pump and absorb
Tower.
Wherein, described NaOH solution circulating pump one end is separately connected the first lye circulating slot and the second lye circulating slot, the other end
Waste chlorine absorption tower is connected by alkali solution cooler.
Wherein, the DCS controller includes display module, and the display module is for showing that chlorine gas absorption tower exports lye
Available chlorine content.
Wherein, the DCS controller further includes button switch, and the button switch is used to start the work of DCS controller.
Wherein, the one outlet of the first lye circulating slot passes through time sodium pump connection sodium hypochlorite storage tank.
The control system of falling slot of accident chlorine treatment equipment provided by the embodiment of the utility model, passes through effective chlorine detection module
The available chlorine content of chlorine gas absorption tower outlet lye is detected, and available chlorine content detected value is sent to DCS controller, works as DCS
When controller judgement knows that available chlorine content is not less than default available chlorine content threshold value, it is same that DCS controller closes the first internally piloted valve
When open the second internally piloted valve, complete the operation of falling slot, realization remote automation falls slot, saves manpower, reduces costs.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural representation according to the control system of falling slot of accident chlorine treatment equipment provided by the embodiment of the utility model
Figure；
In figure, 1. waste chlorine absorption towers；2. the first lye circulating slot；3. the second lye circulating slot；4. pipeline；5. effective chlorine
Detector；6.DCS controller；7. the first internally piloted valve；8. the second internally piloted valve；9. NaOH solution circulating pump；10. alkali solution cooler.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
It should be noted that in the description of the utility model embodiment, the terms "include", "comprise" or its it is any its
He is intended to non-exclusive inclusion by variant, so that the process, method, article or equipment including a series of elements is not
Only include those elements, but also including other elements that are not explicitly listed, or further include for this process, method,
Article or the intrinsic element of equipment.Term " first ", is used for description purposes only " second ", and should not be understood as instruction or
Imply relative importance.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.Term " on ", "lower" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.Unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on can understanding as the case may be
State the concrete meaning of term in the present invention.
Since the degree of automation of the technique of falling slot of traditional accident chlorine treatment equipment is lower, occur in chlor-alkali production system different
Reason condition, when a large amount of chlorine enter accident chlorine treatment equipment, need site operation personnel manually fall slot, control difficulty it is larger, and
It spends human and material resources.If site operation personnel can not slot, the concentration of lye that will lead in accident chlorine treatment equipment be fast in time
Speed reduces, aggravation chlorine is excessive, and the state that causes the accident expands.
Therefore, the utility model embodiment provides a kind of control system of falling slot of accident chlorine treatment equipment, passes through effective chlorine
Detection module detects the available chlorine content of chlorine gas absorption tower outlet lye, and available chlorine content detected value is sent to DCS control
Device, when the judgement of DCS controller knows that available chlorine content is not less than default available chlorine content threshold value, DCS controller closes first
Internally piloted valve opens simultaneously the second internally piloted valve, completes the operation of falling slot, and realization remote automation falls slot, saves manpower, reduces into
This.It is lower to solve the traditional accident chlorine treatment equipment automation technolo of falling slot degree, the technical issues of labor intensive.
Fig. 1 is the structural representation according to the control system of falling slot of accident chlorine treatment equipment provided by the embodiment of the utility model
Figure, as shown in Figure 1, the system includes waste chlorine absorption tower 1, the first lye circulating slot 2, the second lye circulating slot 3 and DCS control
Device 6.
The first lye circulating slot 2 and the second lye circulating slot 3 connect waste chlorine absorption tower 1 by pipeline 4 respectively.Figure
Arrow in 1 indicates the direction of lye flowing.Wherein, the first lye circulating slot 2 and the second lye circulating slot 3 are used to storage alkali
Liquid, circulation alkali liquor and chlorine in waste chlorine absorption tower 1 occur chemical reaction and generate liquor natrii hypochloritis, while releasing reaction
Heat, circulation alkali liquor temperature increase, and flow into the first lye circulating slot 2 or the second lye circulating slot 3 by potential difference.Waste chlorine absorption tower
The chemical reaction occurred in 1 is specific as follows:
Cl2+ 2NaOH=NaClO+NaCl+H2O+25.31kcal/mol
The inlet and outlet of first lye circulating slot 2 are equipped with the first internally piloted valve 7, and the inlet and outlet of the second lye circulating slot 3 are set
There is the second internally piloted valve 8；First internally piloted valve 7 and the second internally piloted valve 8 are connect with DCS controller 6.Specifically, the first automatic control
Valve 7 and the second internally piloted valve 8 are connect with DCS controller 6 by controlling cable.In the present embodiment, when system brings into operation, first
Internally piloted valve 7 is in the open state and the second internally piloted valve 8 is in close state.
Chlorine gas absorption tower, which is exported on the pipeline of the import of the first lye circulating slot 2, is provided with effective chlorine detector, described
Effective chlorine detector is connect with DCS controller, for detecting the available chlorine content of chlorine gas absorption tower outlet lye and being sent to DCS
Controller, so that DCS controller is according to the switch of available chlorine content adjusting the first internally piloted valve and the second internally piloted valve.Effective chlorine detection
Lye is arranged in from the pipeline that waste chlorine absorption tower enters lye circulating slot in instrument.
Wherein, effective chlorine refers to the comparable chlorine dose of oxidability in chlorine-containing compound, qualitatively says, effective chlorine just refers to and contains
Oxidation state chlorine contained in chlorine compound.Effective chlorine detector 5 can also be electrically connected with DCS controller 6, not limited herein
System.
Specifically, when the control system of the falling slot operation of accident chlorine treatment equipment, effective chlorine detector 5 detects available chlorine content
And signal is transmitted to DCS controller 6.When the judgement of DCS controller 6 knows that available chlorine content detected value is not less than default effective chlorine and contains
When measuring threshold value, DCS controller 6 closes the first internally piloted valve 7 and opens simultaneously the second internally piloted valve 8, by the first lye circulating slot 2 and useless chlorine
Lye circulation canal between aspiration tower 1 switches to the second lye circulating slot 3, completes the operation of falling slot.
For example, when in running order first circulation alkali in groove liquid concentration≤1%, available chlorine content >=10%, DCS
Controller 6 closes the first internally piloted valve 7 and opens simultaneously the second internally piloted valve 8, by the first lye circulating slot 2 and waste chlorine absorption tower 1 it
Between lye circulation canal switch to the second lye circulating slot 3, complete the operation of falling slot.Default available chlorine content threshold value can also root
Other values are taken according to actual conditions, this is not restricted.
The control system of falling slot of accident chlorine treatment equipment provided by the embodiment of the utility model, is examined by effective chlorine detector
It surveys chlorine gas absorption tower outlet lye available chlorine content and is sent to DCS controller, when available chlorine content is known in the judgement of DCS controller
When not less than default available chlorine content threshold value, DCS controller closes the first internally piloted valve and opens simultaneously the second internally piloted valve, completes slot
Operation realizes that remote automation falls slot, eliminates the excessive security risk of chlorine, save manpower, reduce costs.
On the basis of the various embodiments described above, the first lye circulating slot 2 and the second lye circulating slot 3 pass through lye
Circulating pump 9 connects waste chlorine absorption tower.NaOH solution circulating pump 9 is used to provide power for lye circulation.
On the basis of the various embodiments described above, described 9 one end of NaOH solution circulating pump is separately connected the first lye circulating slot 2 and
Two lye circulating slots 3, the other end connect waste chlorine absorption tower 1 by alkali solution cooler 10.
The first lye circulating slot 2 is flowed into through effective chlorine detector from the absorbing liquid of waste chlorine absorption tower outlet outflow, by alkali
Liquid circulating pump 9 is sent out, and returns to waste chlorine absorption tower 1 after alkali solution cooler 10 is cooling, the reaction was continued with chlorine, until waste chlorine
Absorption tower 1 flow out circulation alkali liquor in effective chlorine >=10%, then carry out circulating slot switching, i.e., when enter first circulation slot 2
Lye effective chlorine >=10% after stop circulation, the lye for using second circulation slot 3 instead immediately continues cycling through absorption chlorine.
The present embodiment is cooling by the way that lye is arranged on the pipeline 4 between the first NaOH solution circulating pump 9 and waste chlorine absorption tower
Device 10 is cooled down to circulation alkali liquor using the recirculated water in alkali solution cooler 10, avoids alkali liquid temperature excessively high and side reaction occurs, example
Such as: 3NaClO=NaClO3+2NaCl。
On the basis of the various embodiments described above, the DCS controller 6 includes display module, and the display module is for showing
Show the available chlorine content of chlorine gas absorption tower outlet lye.DCS controller 6 further includes button switch, and the button switch is for opening
The work of dynamic DCS controller 6.
For example, when showing available chlorine content >=10% on display module, operator click on DCS controller 6 " from
Dynamic slot " button switch, DCS controller 6 closes the first internally piloted valve 7 and opens simultaneously the second internally piloted valve 8 at this time, and the first lye is followed
Lye circulation canal between annular groove 2 and waste chlorine absorption tower 1 switches to the second lye circulating slot 3, completes the operation of falling slot.This reality
Applying example reduces the labor intensity of staff, improves work efficiency.
On the basis of the various embodiments described above, the one outlet of the first lye circulating slot 2 also passes through time sodium pump connection
Sodium hypochlorite storage tank.After completing the operation of falling slot, the liquor natrii hypochloritis in the first lye circulating slot 2 is passed through into time sodium pump conveying
New lye is supplemented to sodium hypochlorite storage tank, then into the first lye circulating slot 2, in case the next use of falling slot.
The control system of falling slot of accident chlorine treatment equipment provided by the embodiment of the utility model, is examined by effective chlorine detector
It surveys the available chlorine content of chlorine gas absorption tower outlet lye and is sent to DCS controller, when the judgement of DCS controller knows that effective chlorine contains
When amount is not less than default available chlorine content threshold value, DCS controller closes the first internally piloted valve and opens simultaneously the second internally piloted valve, completes down
Slot operation realizes that remote automation falls slot, eliminates the excessive security risk of chlorine, save manpower, reduce costs.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (6)
1. a kind of control system of falling slot of accident chlorine treatment equipment, which is characterized in that followed including waste chlorine absorption tower, the first lye
Annular groove, the second lye circulating slot and DCS controller；
The first lye circulating slot and the second lye circulating slot connect waste chlorine absorption tower, first alkali by pipeline respectively
The inlet and outlet of liquid circulating slot are equipped with the first internally piloted valve, and the inlet and outlet of the second lye circulating slot are equipped with the second internally piloted valve；It is described
First internally piloted valve and the second internally piloted valve are connect with DCS controller；
The chlorine gas absorption tower, which is exported on the pipeline of the first lye circulating slot import, is provided with effective chlorine detector, described effective
Chlorine detector is connect with DCS controller, for detecting the available chlorine content of chlorine gas absorption tower outlet lye and being sent to DCS control
Device, so that DCS controller is according to the switch of available chlorine content adjusting the first internally piloted valve and the second internally piloted valve.
2. the control system of falling slot of accident chlorine treatment equipment according to claim 1, which is characterized in that first lye
Circulating slot and the second lye circulating slot connect waste chlorine absorption tower by NaOH solution circulating pump.
3. the control system of falling slot of accident chlorine treatment equipment according to claim 2, which is characterized in that the lye circulation
Pump one end is separately connected the first lye circulating slot and the second lye circulating slot, and the other end connects waste chlorine by alkali solution cooler and inhales
Receive tower.
4. the control system of falling slot of accident chlorine treatment equipment according to claim 1, which is characterized in that the DCS control
Device includes display module, and the display module is used to show the available chlorine content of chlorine gas absorption tower outlet lye.
5. the control system of falling slot of accident chlorine treatment equipment according to claim 4, which is characterized in that the DCS control
Device further includes button switch, and the button switch is used to start the work of DCS controller.
6. the control system of falling slot of accident chlorine treatment equipment according to claim 1, which is characterized in that first lye follows
The one outlet of annular groove passes through time sodium pump and connects sodium hypochlorite storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920137955.XU CN209612617U (en) | 2019-01-25 | 2019-01-25 | A kind of control system of falling slot of accident chlorine treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920137955.XU CN209612617U (en) | 2019-01-25 | 2019-01-25 | A kind of control system of falling slot of accident chlorine treatment equipment |
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| CN209612617U true CN209612617U (en) | 2019-11-12 |
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| CN201920137955.XU Active CN209612617U (en) | 2019-01-25 | 2019-01-25 | A kind of control system of falling slot of accident chlorine treatment equipment |
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