CN207856852U - A kind of system of continuous automatic dilution hydrazine hydrate - Google Patents
A kind of system of continuous automatic dilution hydrazine hydrate Download PDFInfo
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- CN207856852U CN207856852U CN201721673017.9U CN201721673017U CN207856852U CN 207856852 U CN207856852 U CN 207856852U CN 201721673017 U CN201721673017 U CN 201721673017U CN 207856852 U CN207856852 U CN 207856852U
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- hydrazine hydrate
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- basin
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Abstract
The utility model discloses a kind of system of continuous automatic dilution hydrazine hydrate, including hydrazine hydrate surge tank, static mixer, hydrazine hydrate basin, diluent tank, DCS and connecting pipe, hydrazine hydrate surge tank, static mixer and hydrazine hydrate basin are interconnected；Diluent tank is connected to static mixer；Feeding engine there are one being set in the connecting pipe of hydrazine hydrate surge tank one end, the connecting pipe between feeding engine and static mixer are equipped with No.1 near infrared spectrometer, No.1 flowmeter and No.1 flow control valve；Connecting pipe between diluent tank and static mixer is equipped with No. two flowmeters and No. two flow control valves；No. two near infrared spectrometers there are one being set in connecting pipe between static mixer and hydrazine hydrate basin.Hydrazine hydrate is configured using this system, it is ensured that the accuracy of concentration of hydrazine hydrate avoids the exceeded yield and economic benefit for influencing hydrazine hydrate of concentration of hydrazine hydrate, also, the high degree of automation of this system, will not be damaged to operating personnel.
Description
Technical field
The utility model belongs to chemical products production field more particularly to a kind of system of continuous automatic dilution hydrazine hydrate.
Background technology
Hydrazine hydrate as a kind of important fine chemical material, be widely used it is general, such as：For synthesize AC, D1PA,
The foaming agents such as TSH；The cleaning treatment agent of deoxidation and carbon dioxide removal as boiler and reaction kettle；In medical industry, it is used for
Produce the drug for the treatment of tuberculosis, anti-diabetic；In pesticide industry, for producing herbicide, plant growth blender and sterilization, killing
Worm, raticide；In aerospace field, for producing rocket fuel, developed dye, rubber chemicals etc..
Hydrazine hydrate industrial process mainly has 4 kinds of Raschig process, urea method, ketazine process and hydrogen peroxide method, at present state
Interior main use urea method technique prepares hydrazine hydrate, and the concentration of hydrazine hydrate prepared is usually between 82%~85%, for this purpose, needing
Pure water diluent to be added into hydrazine hydrate solution to be configured to the product of various concentration.But it is special because of hydrazine hydrate property
Property, concentration of hydrazine hydrate can be directly measured there is presently no a kind of instrument, the concentration mensuration of hydrazine hydrate generally uses analysis by titration
It completes.
Currently, the dilution of hydrazine hydrate generally adds water preparation using manual analysis, dilution time is long, technical staff's labour is strong
Degree is big；Meanwhile because the accuracy by hydrazine hydrate craft concentration analysis is poor, finished pot measuring accuracy is relatively low and temperature is influenced
The limitation of factors causes the control accuracy to concentration of hydrazine hydrate inadequate；By taking 80% hydrazine hydrate as an example, HG/T 3259-2012
It is required that concentration of hydrazine hydrate >=80.0%, according to manual analysis, prepares hydrazine hydrate, the concentration of hydrazine hydrate of manufacture is 80.0~80.5%
Between, concentration of hydrazine hydrate highest can exceed 0.5 percentage point of normal concentration, to influence the yield and economic benefit of hydrazine hydrate；
In addition, hydrazine hydrate belongs to poisonous and harmful chemicals, according to manual analysis, hydrazine hydrate is prepared, operating personnel are sampling and analyzing
Cheng Zhong can inevitably touch hydrazine hydrate solution or sucking hydrazine hydrate steam, to which the health to operating personnel damages.
Utility model content
The technical problem to be solved by the utility model is to provide it is a kind of can continuous, automatic, dilution hydrazine hydrate system,
Hydrazine hydrate is configured using the system, it is ensured that the accuracy of concentration of hydrazine hydrate, to avoid concentration of hydrazine hydrate is exceeded and then shadow
Ring the yield and economic benefit of hydrazine hydrate；Meanwhile the system whole process uses automation mechanized operation, and it is diluted to substantially increase hydrazine hydrate
Automatization level, but also the health of operating personnel will not be damaged.
Technical solution adopted by the utility model to solve its technical problems is：A kind of continuous automatic dilution hydrazine hydrate is
System, including hydrazine hydrate surge tank, static mixer, hydrazine hydrate basin, diluent tank, DCS and connecting pipe, the hydration
Hydrazine surge tank, static mixer and hydrazine hydrate basin pass through the connecting pipe successively sequential communication；The diluent tank
It is connected to static mixer by connecting pipe；It is set in the connecting pipe of hydrazine hydrate surge tank one end there are one feeding engine,
Connecting pipe between the feeding engine and static mixer be equipped with No.1 near infrared spectrometer, No.1 flow control valve and
No.1 flowmeter, and the No.1 flowmeter is located at after the No.1 flow control valve；The diluent tank and static state
Connecting pipe between mixer is equipped with No. two flow control valves and No. two flowmeters, and No. two flowmeters are located at institute
After No. two flow control valves stated；No. two there are one being set in connecting pipe between the static mixer and hydrazine hydrate basin
Near infrared spectrometer；The feeding engine, No.1 flow control valve, No.1 flowmeter, No. two flow control valves, No. two flows
Meter, No.1 near infrared spectrometer and No. two near infrared spectrometers are shown and are controlled by the DCS.
Further, it is additionally provided with a company in the connecting pipe between No. two near infrared spectrometers and hydrazine hydrate basin
Branch pipe is connect, the other end of the connecting branch is connected to hydrazine hydrate surge tank；It is connected with connecting pipe in it on connecting branch
One end is set there are one hydrazine hydrate buffering tank valve, the connection between hydrazine hydrate basin and connecting pipe and the joint of connecting branch
It is set on pipeline there are one hydrazine hydrate basin valve, the hydrazine hydrate buffers tank valve and hydrazine hydrate basin valve by described
DCS control.
Further, hydrazine hydrate outlet valve there are one being set in the connecting pipe between the hydrazine hydrate surge tank and feeding engine
, in being set close to one end of diluent tank, there are one dilute in the connecting pipe between the diluent tank and No. two flow control valves
Agent outlet valve is released, the hydrazine hydrate outlet valve and diluent outlet valve are controlled by the DCS.
Further, one, No. two flowmeter and one, No. two flow control valve are high precision flow and high-precision
Spend flow control valve.
Further, the diluent in the diluent tank is pure water diluent.
The utility model has the beneficial effects that：The continuous automatic dilution hydrazine hydrate system of the utility model is by near infrared spectrum
Instrument is applied to analysis and the measurement of concentration of hydrazine hydrate, to ensure that the accuracy of concentration of hydrazine hydrate analysis and measurement result；Together
When, this system again uses near infrared spectrometer and DCS cooperation, to which the on-line analysis to concentration of hydrazine hydrate be furthermore achieved
And on-line determination, the labor intensity of operating personnel is greatly reduced, the diluted automatization level of hydrazine hydrate greatly improved.Its
Secondary, this system selects hydrazine hydrate and pure water diluent minimum controlling flux up to 1kg grades of high-precision flowmeter and high-precision
Flow control valve can further promote the control accuracy of concentration of hydrazine hydrate, to ensure the concentration of hydrazine hydrate after dilution not
It is exceeded, and then ensure the yield of hydrazine hydrate, achieve the purpose that increase economic efficiency；Equally with 80% concentration of HG/T3259-2012
For hydrazine hydrate, between the concentration of hydrazine hydrate made of this system configures controllable 80.00~80.05%, it is clear that using this
The accuracy of concentration of hydrazine hydrate made of system configuration can be effectively ensured.Again, this system only needs operating personnel to operate
The continuous automatic dilution to hydrazine hydrate can be realized in DCS, and operating personnel's whole process is not contacted with hydrazine hydrate solution, will not be sucked
Hydrazine hydrate steam ensure that the personal safety of operating personnel.
Description of the drawings
Fig. 1 is the structural schematic diagram of the continuous automatic dilution hydrazine hydrate system of the utility model；
In figure label for：1- hydrazine hydrate surge tanks, 2- static mixing tanks, 3- hydrazine hydrate basins, 4- diluent tanks, 5- connections
Pipeline, 6- feeding engines, 7- No.1 near infrared spectrometers, 8- No.1 flow control valves, 9- No.1 flowmeters, No. bis- flow tune of 10-
Save valve, No. bis- flowmeters of 11-, No. bis- near infrared spectrometers of 12-, 13- connecting branches, 14- hydrazine hydrates buffering tank valve, 15- water
Close hydrazine basin valve, 16- hydrazine hydrate outlet valves, 17- diluent outlet valves.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1, the system of the continuous automatic dilution hydrazine hydrate of the utility model, including hydrazine hydrate surge tank 1, static state
Mixer 2, hydrazine hydrate basin 3, diluent tank 4, DCS（It is not shown in figure）And connecting pipe 5, the hydrazine hydrate surge tank
1, static mixer 2 and hydrazine hydrate basin 3 pass through the connecting pipe 5 successively sequential communication；The diluent tank 4 passes through
Connecting pipe 5 is connected to static mixer 2, and the diluent in diluent tank 4 is pure water diluent；Close to hydrazine hydrate surge tank 1
It is set in the connecting pipe 5 of one end there are one feeding engine 6, in the connecting pipe 5 between hydrazine hydrate surge tank 1 and the feeding engine 6
If there are one hydrazine hydrate outlet valves 16, the connecting pipe 5 between feeding engine 6 and static mixer 2 is equipped with No.1 near-infrared
Spectrometer 7, No.1 flow control valve 8 and No.1 flowmeter 9, and the No.1 flowmeter 9 is located at the No.1 flow
After regulating valve 8, No.1 flowmeter 9 and No.1 flow control valve 8 are high precision flow and high-precision flow control valve, so that
The minimum controlling flux of hydrazine hydrate can reach 1kg grades；In connecting pipe 5 between the diluent tank 4 and static mixer 2
Equipped with No. two flow control valves 10 and No. two flowmeters 11, and No. two flowmeters 11 are located at No. two flow-rate adjustments
After valve 10, No. two flowmeters 11 and No. two flow control valves 10 are high precision flow and high-precision flow control valve, so that
The minimum controlling flux of pure water diluent can reach 1kg grades；Connecting tube between diluent tank 4 and No. two flow control valves 10
In being set close to one end of diluent tank 4, there are one diluent outlet valves 17 on road 5；The static mixer 2 is store with hydrazine hydrate
No. two near infrared spectrometers 12 there are one being set in connecting pipe 5 between tank 3；The hydrazine hydrate outlet valve 16, feeding engine
6, No.1 flow control valve 8, No.1 flowmeter 9, the flow control valve 10, two of diluent outlet valve 17, two flowmeter 11,
No.1 near infrared spectrometer 7 and No. two near infrared spectrometers 12 are shown and are controlled by the DCS.
A connection branch is additionally provided in connecting pipe 5 between No. two near infrared spectrometers 12 and hydrazine hydrate basin 3
The other end of pipe 13, the connecting branch 13 is connected to hydrazine hydrate surge tank 1；In itself and 5 phase of connecting pipe on connecting branch 13
Even one end set there are one hydrazine hydrate buffer tank valve 14, the joint of hydrazine hydrate basin 3 and connecting pipe 5 and connecting branch 13
Between connecting pipe 5 on set there are one hydrazine hydrate basin valve 15, the hydrazine hydrate buffers tank valve 14 and hydrazine hydrate storage
Tank valve 15 is controlled also by the DCS.
The course of work of the continuous automatic dilution hydrazine hydrate system of the utility model is as follows：
First, operating personnel input the concentration of hydrazine hydrate for needing to prepare on DCS（That is target concentration of hydrazine hydrate）, then beat
Hydrazine hydrate outlet valve 16 and No.1 near infrared spectrometer 7 are opened, starts feeding engine 6, No.1 flow tune is regulated by DCS later
The aperture for saving valve 8, to set the hydrazine hydrate flow of what a suitable size, and by No.1 flowmeter 9 by the flow of hydrazine hydrate
Signal feeds back to DCS and is shown, hydrazine hydrate is pumped by feeding engine 6 in static mixer 2；When hydrazine hydrate flow to No.1
When near infrared spectrometer 7, No.1 near infrared spectrometer 7 automatically can carry out online concentration analysis to hydrazine hydrate and online concentration is surveyed
It is fixed, and concentration of hydrazine hydrate signal is fed back into DCS and is shown；DCS can be according to collected hydrazine hydrate flow signal, dense later
Degree signal and target concentration of hydrazine hydrate signal calculate the flow of required pure water diluent automatically, then dilute required pure water
Agent flux signal is automatically converted into the opening amount signal of No. two flow control valves 10, automatically adjusts No. two flow tune by DCS later
The aperture for saving valve 10, makes its aperture be in valve opening corresponding with No. two 10 opening amount signals of flow control valve；It
Pure water diluent outlet valve 17 is opened afterwards, is made pure water diluent flow to static mixer 2, can be passed through No. two flowmeters at this time
The flow signal of pure water diluent is fed back to DCS by 11 to be shown, it is ensured that the aperture of No. two flow control valves 10 is errorless；Later
Pure water diluent flow, which enters, quickly to be mixed in static mixer 2 with hydrazine hydrate solution, after mixing, the hydrazine hydrate after dilution
Solution continues flow forward by connecting pipe 5 and is beaten when the hydrazine hydrate solution after dilution flow to No. two near infrared spectrometers 12
No. two near infrared spectrometers 12 are opened, No. two near infrared spectrums 12 automatically can carry out online concentration to the hydrazine hydrate solution after dilution
Analysis and online concentration mensuration, and the concentration of hydrazine hydrate signal after dilution is fed back into DCS and is shown；If the water after dilution
Error between conjunction hydrazine concentration and target concentration of hydrazine hydrate within the allowable range, is then determined as that the concentration of hydrazine hydrate after dilution is closed
Lattice open hydrazine hydrate basin valve 15 at this time, so that the hydrazine hydrate solution of concentration qualification is flowed into hydrazine hydrate basin 3 and store,
Convenient for subsequent packaging process；If the error between concentration of hydrazine hydrate and target concentration of hydrazine hydrate after dilution has exceeded permission
Range is then determined as that the concentration of hydrazine hydrate after dilution is unqualified, closes hydrazine hydrate basin valve 15 at this time, opens hydrazine hydrate buffering
Tank valve 14 makes the underproof hydrazine hydrate solution of concentration return in hydrazine hydrate surge tank 1, reconfigures again later.Note：Described
17, No. two hydrazine hydrate outlet valve 16, feeding engine 6, No.1 flow control valve 8, diluent outlet valve flow control valves 10, one
Number 7, No. two near infrared spectrometers 12 of near infrared spectrometer, hydrazine hydrate buffering tank valve 14 and hydrazine hydrate basin valve 15 are logical
Cross the DCS controls.It follows that the present invention realizes continuous, automatic, the stable dilution of hydrazine hydrate.
The beneficial effects of the utility model are：
First, near infrared spectrometer is applied to analysis and the measurement of concentration of hydrazine hydrate by this system, to ensure that hydration
The accuracy of hydrazine concentration analysis and measurement result.Using near infrared spectrometer measure concentration of hydrazine hydrate principle be：Hydrazine hydrate energy
It is mixed with arbitrary proportioning with water, the molecular structure of hydrazine hydrate is sufficiently stable, and chemical formula is：N2H4•H2O, hydrazine hydrate is certain
Under temperature, pressure and flow velocity, in moisture content can be evenly distributed in hydrazine hydrate, near-infrared absorption can be used as a result,
Principle measure the water content in hydrazine hydrate, using two groups of specific wavelength, since hydrazine hydrate is in a certain fixed measurement
It is not absorbed under wavelength, and moisture content has absorption under the fixed measurement wavelength, therefore, according to langbobier law, moisture content
Degree value can be directly proportional to the absorption value of light to itself, and near infrared spectrometer is by measuring absorption of the moisture content to light
Value, to measure the degree of moisture content, it is contemplated that the content of other materials is very low in mixed liquor, is similar to zero, therefore, subtracts
The content of moisture content, remaining is exactly the content of hydrazine hydrate, and the concentration of hydrazine hydrate is measured using near infrared spectrometer, will not be by
The influence of the factors such as temperature, pressure and the flow velocity of hydrazine hydrate ensures that near infrared spectrometer measures concentration of hydrazine hydrate
Accuracy, the measurement accuracy of concentration of hydrazine hydrate is up to 0~0.05%.Meanwhile this system again matches near infrared spectrometer and DCS
It closes and uses, to which on-line analysis and the on-line determination to concentration of hydrazine hydrate be furthermore achieved, greatly reduce operating personnel's
The diluted automatization level of hydrazine hydrate greatly improved in labor intensity.
Secondly, this system selects hydrazine hydrate and pure water diluent minimum controlling flux up to 1kg grades of high-precision flow
Meter and high-precision flow control valve, can further promote the control accuracy of concentration of hydrazine hydrate, to ensure the water after dilution
Conjunction hydrazine concentration is not exceeded, and then ensures the yield of hydrazine hydrate, achievees the purpose that increase economic efficiency；Equally with HG/T3259-
For 2012 80% concentration hydrazine hydrate, the concentration of hydrazine hydrate made of this system configures controllable 80.00~80.05% it
Between, it is clear that the accuracy of concentration of hydrazine hydrate made of this system configures can be effectively ensured.
Again, this system only needs operating personnel's operation DCS that the continuous automatic dilution to hydrazine hydrate, operating personnel can be realized
Whole process is not contacted with hydrazine hydrate solution, will not be sucked hydrazine hydrate steam, be ensure that the personal safety of operating personnel.
It should be understood that the above-mentioned specific implementation mode of the utility model is used only for exemplary illustration or explains this reality
With novel principle, without constituting limitations of the present invention.Therefore, in the spirit and scope without departing from the utility model
In the case of any modification, the equivalent replacement etc. made, should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of system of continuous automatic dilution hydrazine hydrate, it is characterised in that：Including hydrazine hydrate surge tank（1）, static mixer
（2）, hydrazine hydrate basin（3）, diluent tank（4）, DCS and connecting pipe（5）, the hydrazine hydrate surge tank（1）, it is static mixed
Clutch（2）With hydrazine hydrate basin（3）Pass through the connecting pipe（5）Sequential communication successively；The diluent tank（4）Pass through
Connecting pipe（5）With static mixer（2）Connection；Close to hydrazine hydrate surge tank（1）The connecting pipe of one end（5）On set there are one
Feeding engine（6）, the feeding engine（6）With static mixer（2）Between connecting pipe（5）It is equipped with No.1 near infrared spectrometer
（7）, No.1 flow control valve（8）And No.1 flowmeter（9）, and the No.1 flowmeter（9）Positioned at the No.1 stream
Adjustable valve（8）Later；The diluent tank（4）With static mixer（2）Between connecting pipe（5）It is equipped with No. two flows
Regulating valve（10）With No. two flowmeters（11）, and No. two flowmeters（11）Positioned at No. two flow control valves（10）
Later；The static mixer（2）With hydrazine hydrate basin（3）Between connecting pipe（5）On set there are one No. two near infrared lights
Spectrometer（12）；The feeding engine（6）, No.1 flow control valve（8）, No.1 flowmeter（9）, No. two flow control valves（10）、
No. two flowmeters（11）, No.1 near infrared spectrometer（7）And No. two near infrared spectrometers（12）Shown by the DCS
And control.
2. the system of continuous automatic dilution hydrazine hydrate according to claim 1, it is characterised in that：No. two near infrared lights
Spectrometer（12）With hydrazine hydrate basin（3）Between connecting pipe（5）On be additionally provided with a connecting branch（13）, the connecting branch
（13）The other end and hydrazine hydrate surge tank（1）Connection；Connecting branch（13）On in itself and connecting pipe（5）Connected one end is set
There are one hydrazine hydrate surge tanks（1）, hydrazine hydrate basin（3）With connecting pipe（5）With connecting branch（13）Joint between
Connecting pipe（5）On set there are one hydrazine hydrate basin（15）, the hydrazine hydrate buffers tank valve（14）With hydrazine hydrate basin
（15）Valve is controlled by the DCS.
3. the system of continuous automatic dilution hydrazine hydrate according to claim 1 or 2, it is characterised in that：The hydrazine hydrate is slow
Rush tank（1）With feeding engine（6）Between connecting pipe（5）On set there are one hydrazine hydrate outlet valve（16）, the diluent tank
（4）With No. two flow control valves（10）Between connecting pipe（5）On in close to diluent tank（4）One end set there are one dilution
Agent outlet valve（17）, the hydrazine hydrate outlet valve（16）With diluent outlet valve（17）Described is controlled by DCS
System.
4. the system of continuous automatic dilution hydrazine hydrate according to claim 1, it is characterised in that：One, No. two stream
Gauge（9,11）With one, No. two flow control valve（8,10）It is high precision flow and high-precision flow control valve.
5. the system of continuous automatic dilution hydrazine hydrate according to claim 1, it is characterised in that：The diluent tank（4）
Interior diluent is pure water diluent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721673017.9U CN207856852U (en) | 2017-12-05 | 2017-12-05 | A kind of system of continuous automatic dilution hydrazine hydrate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721673017.9U CN207856852U (en) | 2017-12-05 | 2017-12-05 | A kind of system of continuous automatic dilution hydrazine hydrate |
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| Publication Number | Publication Date |
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| CN207856852U true CN207856852U (en) | 2018-09-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107970860A (en) * | 2017-12-05 | 2018-05-01 | 宜宾海丰和锐有限公司 | A kind of system of continuous automatic dilution hydrazine hydrate |
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2017
- 2017-12-05 CN CN201721673017.9U patent/CN207856852U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107970860A (en) * | 2017-12-05 | 2018-05-01 | 宜宾海丰和锐有限公司 | A kind of system of continuous automatic dilution hydrazine hydrate |
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