CN208244440U - A kind of automatic alkali adding device - Google Patents
A kind of automatic alkali adding device Download PDFInfo
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- CN208244440U CN208244440U CN201820582863.8U CN201820582863U CN208244440U CN 208244440 U CN208244440 U CN 208244440U CN 201820582863 U CN201820582863 U CN 201820582863U CN 208244440 U CN208244440 U CN 208244440U
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- valve
- tail gas
- pipeline
- electric switching
- value
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Abstract
The utility model provides a kind of automatic alkali adding device, including liquid alkaline slot, bypass valve, tail gas absorbing system, electric switching valve, valve control, PH online instrument table, PH sensor and bypass valve；The device carries out on-line real-time measuremen by pH value of the PH sensor to tail gas absorbing system, and numerical value is directly displayed in PH online instrument table, it is very intuitive and accurate, and bound threshold value is set on valve control, electric switching valve is automatically turned on when measuring pH value lower than lower threshold adds alkali to neutralize part peracid, electric switching valve or control water pump water adding are automatically closed when pH value is higher than upper limit threshold and crosses alkali to dilute part, it effectively reduces labor intensity, improves work efficiency and Detection accuracy.
Description
Technical field
The utility model relates to field of chemical equipment more particularly to a kind of automatic alkali adding devices.
Background technique
Hydrofluoric acid tail gas absorbing system is fluctuated because the pH value of production system changes at present, and environmental requirement pH value must be controlled
For system between 6-8, but because production system fluctuation is larger, traditional artificial survey hydrofluoric acid tail gas absorbing system pH value is to manually adjust
Caustic dosage can not carry out real-time control to adder-subtractor according to the variation of pH value, and not only large labor intensity heavy workload can not also
It is precisely controlled, is unable to ensure PH between 6-8, there are large labor intensity and environmentally friendly risks, and in tail gas with situation up to standard
Under still persistently plus alkali, often result in excessive plus alkali, and tail inhales the sour water discharge in tower not in time, the lye of addition is reacted with sour water
It causes lye to waste, increases operating cost, the problems such as that there is also detection efficiencies is low, detection sample representation is poor.
Utility model content
For this purpose, the utility model provides a kind of automatic alkali adding device to overcome the problems of the above-mentioned prior art,
The problems such as to solve low detection efficiency, large labor intensity.
To achieve the above object, inventor provide a kind of automatic alkali adding device, including liquid alkaline slot, tail gas absorbing system,
Electric switching valve, valve control, PH online instrument table, PH sensor and bypass valve；
The liquid alkaline slot is connect with tail gas absorbing system by pipeline, and the bypass valve is parallel to the pipeline；
The electric switching valve is set on the pipeline, and electric switching valve is electrically connected to valve control, the valve control again
Device processed is electrically connected with PH online instrument table, and the PH online instrument table is electrically connected with PH sensor, and the PH sensor is connected to tail again
Gas receives system.
It advanced optimizes, further includes water pump, the control terminal of the water pump is electrically connected to valve control, the input terminal of water pump
It is connected to water source by water pipe, the output end of water pump is connected to pipeline by water pipe.
It advanced optimizes, further includes the first regulating valve, first regulating valve is set between lye tank (vat) and bypass valve
Pipeline on.
It advanced optimizes, further includes the second regulating valve, second regulating valve is set to the first regulating valve and driven opening
It closes on the pipeline between valve.
It advanced optimizes, further includes third regulating valve, the third regulating valve is set to electric switching valve and tail gas is inhaled
On pipeline between receipts system.
It advanced optimizes, the PH upper limit threshold of the valve control is 8.
It advanced optimizes, the PH lower threshold of the valve control is 6.
It advanced optimizes, the valve control is single-chip microcontroller.
It is different from the prior art, above-mentioned technical proposal is carried out online real by pH value of the PH sensor to tail gas absorbing system
When detect, and directly display numerical value in PH online instrument table, it is very intuitive and accurate, and bound threshold is set on valve control
Value automatically turns on electric switching valve when measuring pH value lower than lower threshold and adds alkali, closes automatically when pH value is higher than upper limit threshold
Electric switching valve is closed, labor intensity is effectively reduced, is improved work efficiency and Detection accuracy.
Detailed description of the invention
Fig. 1 is the schematic device of one embodiment of the utility model.
Description of symbols:
1, liquid alkaline slot；
2, tail gas absorbing system；
3, electric switching valve；
4, valve control；
5, PH online instrument table；
6, PH sensor；
7, bypass valve；
8, pipeline；
9, water pump；
10, water source；
11, water pipe；
12, the first regulating valve；
13, the second regulating valve；
14, third regulating valve.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
It preferably include liquid alkaline slot 1, tail gas absorption system referring to Fig. 1, present embodiments providing a kind of automatic alkali adding device
System 2, electric switching valve 3, valve control 4, PH online instrument table 5, PH sensor 6 and bypass valve 7；The liquid alkaline slot 1 is inhaled with tail gas
Receipts system 2 is connected by pipeline 8, and the bypass valve 7 is parallel to the pipeline 8, when which is to consider regulating valve maintenance
Maintenance and be arranged, general state be it is normally closed；The electric switching valve 3 is set on the pipeline 8, and electric switching valve 3 is again electric
It is connected to valve control 4, the valve control 4 is electrically connected with PH online instrument table 5, the PH online instrument table 5 and 6 electricity of PH sensor
Connection, the PH sensor 6 are connected to tail gas again and receive system.Liquid alkaline slot 1 is the container for storing liquid alkaline, and bypass valve 7 is used
In the flow direction and flow of lye in control pipeline 8, tail gas absorbing system 2 is for absorbing and storing hydrofluoric acid tail gas, valve control 4
Place is equipped with pH value bound threshold value, and the device 4 valve-controlled of electric switching valve 3 controls the on-off inside pipeline 8 or the adjusting to flow,
PH online instrument table 5 is used for the pH value that real-time display obtains and the value is sent at valve control 4, and PH sensor 6 is for obtaining
The pH value of tail gas absorbing system 2 simultaneously issues the data at PH online instrument table 5, specifically, PH sensor 6 is to tail gas absorbing system
Hydrofluoric acid tail gas in 2 carries out on-line real-time measuremen, and the pH value data that will acquire are reached and shown at PH online instrument table 5, and PH exists
Line instrument 5 is sent data at valve control 4 again to be compared, when the data are more than the upper limit threshold of valve control 4, valve control
Device 4 controls electric switching valve 3 and progressively closes off, so that the lye stopping in pipeline 8 flows to tail gas absorbing system 2, when the data are low
When the lower threshold of valve control 4, valve control 4 controls electric switching valve 3 and gradually opens, so that the lye in pipeline 8 is opened
Beginning flows to tail gas absorbing system 2, realizes and neutralizes to the acid tail gas part of tail gas absorbing system 2, whole process is uninterrupted, by PH
The PH concentration value of 6 real-time detection tail gas absorbing system 2 of sensor, and tail gas absorbing system is further adjusted by automatic alkali adding
2 PH concentration value, to reach discharge standard as defined in Environmental Protection Agency.
It further include water pump 9 in the embodiment advanced optimized, the control terminal of the water pump 9 is electrically connected to valve control
4, the input terminal of water pump 9 is connected to water source 10 by water pipe 11, and the output end of water pump 9 is connected to pipeline 8 by water pipe 11, works as PH
When the pH value that sensor 6 obtains is higher than the upper limit threshold of valve control 4, valve control 4 controls the unlatching of water pump 9, controls simultaneously
The unlatching of electric switching valve 3, so that water pump 9, which draws water, to import tail gas absorbing system 2 in water flow introduction pipeline 8 and finally, so that
Lye in tail gas absorbing system 2 obtains part of dilution, has stronger practicability.
It further include the first regulating valve 12 in the embodiment advanced optimized, first regulating valve 12 is set to lye
On pipeline 8 between slot and bypass valve 7, which can be manual modulation valve, be mainly used for adjusting from liquid alkaline slot 1
Export the size of flux of alkaline liquor.
In preferred embodiment, liquid alkaline slot 1 can also be pumped with liquid alkaline and be replaced, and is connected electrically by valve control 4
It realizes control caustic dosage, effectively realizes the automation control of liquid feeding alkali pump, remove switch manually without staff, adjust lye
Uninterrupted, the labor intensity of staff is effectively reduced, improves the working efficiency of workpeople.
In the embodiment of certain optimizations, valve control 4, which is also adapted to, is equipped with motor, which can be adapted to driving motor switch
The normal operation of valve 3 and water pump 9 has stronger practicability.
It further include the second regulating valve 13 and third regulating valve 14 in the embodiment advanced optimized, described second is adjusted
Valve 13 is set on the pipeline 8 between the first regulating valve 12 and electric switching valve 3, and the third regulating valve 14 is set to driven opening
It closes on the pipeline 8 between valve 3 and tail gas absorbing system 2.Second regulating valve 13 can be hand-operated valve with third regulating valve 14, have
The function of flux of alkaline liquor size in pipeline 8 is adjusted, the second regulating valve 13 is closed and opens bypass valve 7 in order to carry out in pipeline 8
Maintenance, third regulating valve 14 be then the relatively stable of the main caustic dosage for maintaining to be determined by electric switching valve 3 or amount of water so that
Final water flow or lye flows slowly into tail gas absorbing system 2, to realize the adjusting to pH value, has stronger practicability.
In specific embodiment, the PH upper limit threshold of the valve control 4 is 8, lower threshold 6, which is mainly
In order to meet the regulation of Environmental Protection Agency, so that the final discharge of 2 tail gas of tail gas absorbing system falls within 6 to 8 section of pH value, mainly pass through
The adjusting to the pH value in tail gas absorbing system 2 is added in alkali valve control 4 by adding water to cross alkali to dilute part in real time
With part peracid.
In the embodiment advanced optimized, which is single-chip microcontroller, is model stc89c52 single-chip microcontroller, not only body
Product is small, and control performance is good, and easy to use, and structure is simple, and cost performance is high, and effectively realize to electric switching valve 3 and
The control of water pump 9, and finally realize the adjusting to pH value in tail gas absorbing system 2.
The utility model carries out on-line real-time measuremen when implementing, through pH value of the PH sensor 6 to tail gas absorbing system 2, and
Numerical value is directly displayed in PH online instrument table 5, it is very intuitive and accurate, and bound threshold value is set on valve control 4, when measuring
PH value automatically turns on electric switching valve 3 plus alkali to neutralize part peracid, when pH value is higher than upper limit threshold when being lower than lower threshold
Electric switching valve 3 or control water pump 9 plus water is automatically closed and crosses alkali to dilute part, so that acid-base accommodation better effect, effectively
Labor intensity is reduced, has achieved the purpose that accurate, in time plus alkali, is improved work efficiency and Detection accuracy.
It should be noted that being not intended to limit although the various embodiments described above have been described herein
The scope of patent protection of the utility model.Therefore, based on the innovative idea of the utility model, embodiment described herein is carried out
Change and modification or equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly
Or above technical scheme is used in other related technical areas indirectly, it is included in the protection model of the utility model patent
Within enclosing.
Claims (8)
1. a kind of automatic alkali adding device, it is characterised in that: including liquid alkaline slot, tail gas absorbing system, electric switching valve, valve control
Device, PH online instrument table, PH sensor and bypass valve,
The liquid alkaline slot is connect with tail gas absorbing system by pipeline, and the bypass valve is parallel to the pipeline；
The electric switching valve is set on the pipeline, and electric switching valve is electrically connected to valve control, the valve control again
It is electrically connected with PH online instrument table, the PH online instrument table is electrically connected with PH sensor, and the PH sensor is connected to tail gas again and connects
Receipts system.
2. a kind of automatic alkali adding device according to claim 1, it is characterised in that: it further includes water pump, the water pump
Control terminal is electrically connected to valve control, and the input terminal of water pump is connected to water source by water pipe, and the output end of water pump is connected by water pipe
It is connected to pipeline.
3. a kind of automatic alkali adding device according to claim 1, it is characterised in that: it further includes the first regulating valve, described
First regulating valve is set on the pipeline between lye tank (vat) and bypass valve.
4. according to claim 1 or a kind of automatic alkali adding device described in 3 any one, it is characterised in that: it further includes second
Regulating valve, second regulating valve are set on the pipeline between the first regulating valve and electric switching valve.
5. a kind of automatic alkali adding device according to claim 1, it is characterised in that: it further includes third regulating valve, described
Third regulating valve is set on the pipeline between electric switching valve and tail gas absorbing system.
6. a kind of automatic alkali adding device according to claim 1, it is characterised in that: the PH upper limit threshold of the valve control
It is 8.
7. a kind of automatic alkali adding device according to claim 1, it is characterised in that: the PH lower threshold of the valve control
It is 6.
8. a kind of automatic alkali adding device according to claim 1, it is characterised in that: the valve control is single-chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820582863.8U CN208244440U (en) | 2018-04-23 | 2018-04-23 | A kind of automatic alkali adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820582863.8U CN208244440U (en) | 2018-04-23 | 2018-04-23 | A kind of automatic alkali adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208244440U true CN208244440U (en) | 2018-12-18 |
Family
ID=64637575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820582863.8U Active CN208244440U (en) | 2018-04-23 | 2018-04-23 | A kind of automatic alkali adding device |
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| CN (1) | CN208244440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568582A (en) * | 2022-03-21 | 2022-06-03 | 山东嘉华油脂有限公司 | Automatic control method for neutralization section in soybean protein processing process |
-
2018
- 2018-04-23 CN CN201820582863.8U patent/CN208244440U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568582A (en) * | 2022-03-21 | 2022-06-03 | 山东嘉华油脂有限公司 | Automatic control method for neutralization section in soybean protein processing process |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200520 Address after: 354000 Jinling Road 6, Jintang Industrial Park, Shaowu City, Nanping, Fujian Patentee after: FUJIAN YONGJING TECHNOLOGY Co.,Ltd. Address before: 354000, Nanping, Fujian province Shaowu City drying street new ammonia Road No. 18 Patentee before: FUJIAN SHAOWU YONGFEI CHEMICAL Co.,Ltd. |