CN108956356A - A kind of chemical fertilizer dissolubility sensing equipment and method - Google Patents
A kind of chemical fertilizer dissolubility sensing equipment and method Download PDFInfo
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- CN108956356A CN108956356A CN201810402878.6A CN201810402878A CN108956356A CN 108956356 A CN108956356 A CN 108956356A CN 201810402878 A CN201810402878 A CN 201810402878A CN 108956356 A CN108956356 A CN 108956356A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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Abstract
The present invention relates to a kind of chemical fertilizer dissolubility sensing equipments, including holding tank, container, controller, insulating box, liquid absorption device, temperature sensor, pH sensor and weighing device.Method is as follows: the holding tank for being loaded with saturation solution being put into insulating box, the saturation solution in holding tank is heated to preset temperature；When temperature sensor is shown as the temperature of setting and pH sensor does not change, the measured value m of pH value at this time and weighing device is automatically recorded0, then allow saturation solution to be sucked into container, automatically record the measured value m of weighing device at this time again1；Container is moved into insulating box and carries out heating, drying, records the quality m of container at this time2；Calculate the solubility S of solution1=(m2‑m0)100/(m1‑m2)(m1‑m2).Solubility of chemical fertilizer under the conditions of different temperatures and different acid-base property in different water sources can be measured.
Description
Technical field
The present invention relates to field of agricultural irrigation more particularly to a kind of chemical fertilizer dissolubility sensing equipment and methods.
Background technique
It in agricultural water fertilizer integrated technique, needs for fertilizer to be dissolved in irrigation water, keep the skin wet to crop and nutrient.
Fertilizer dissolubility influence factor mainly has 4 aspects: (1) water temperature；(2) acid-base property of water；(3) pressure；(4) fertilizer type.By
In water condition difference, after having dissolved same amount of fertilizer, the acid-base property of solution has very big difference, influences to be also not on crop
The same.Even same water condition, due to irrigation time difference, water temperature is also different, influences on fertilizer dissolubility
It is not identical.But our fertilizer solubilities usually grasped are characterisitic parameters at a certain temperature, under specific condition of water quality,
There is very big difference with actual conditions in production process.Therefore, it is necessary to measure solubility of the various fertilizer under different water conditions,
To ensure that concentration of fertilizer is more accurate, while meeting plant growth and need, will not pollute.Currently, measurement solid solubility
Method mainly have balancing method and dynamic method, measuring principle is simple, but continuous mode is cumbersome, and temperature should not control, institute
There is bigger difference needed for the solubility and production of measurement.
Therefore, it is necessary to a kind of chemical fertilizer dissolubility automatic checkout equipments, and it is molten in irrigation water can quickly to measure fertilizer
Xie Du.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of chemical fertilizer dissolubility sensing equipment and methods, to overcome
Above-mentioned deficiency in the prior art.
The technical scheme to solve the above technical problems is that a kind of chemical fertilizer dissolubility sensing equipment, including
Holding tank, container, controller and the insulating box being electrically connected with the controller respectively, liquid absorption device, temperature sensor, pH sensor
And weighing device, holding tank are arranged in insulating box, temperature sensor and pH sensor are arranged in holding tank, institute in holding tank
The solution of splendid attire is transferred in container by liquid absorption device, and container is arranged on weighing device.
The beneficial effects of the present invention are: chemical fertilizer can be measured under the conditions of different temperatures and different acid-base property in difference
Solubility in water source, measured fertilizer solubility parameter are more in line with production actual conditions, are more advantageous to water-fertilizer integral skill
Art promotes and applies.
Based on the above technical solution, the present invention can also be improved as follows.
Further, liquid absorption device includes vacuum pump and pipeline, and one end of pipeline is extend into holding tank, the other end of pipeline
The top of container is extended to, vacuum pump is arranged on pipeline, and vacuum pump is electrically connected with the controller.
It is using above-mentioned further beneficial effect: easily controllable to be transferred to solution in container from holding tank.
Further, liquid absorption device further includes telescopic end, and telescopic end includes telescoping tube and aeration ring, and telescoping tube is vertically arranged in
In holding tank, one end of telescoping tube is located at one end in holding tank with pipeline and is connected, and the other end of telescoping tube is arranged aeration ring.
Be using above-mentioned further beneficial effect: when solution is more in holding tank, aeration ring float, telescoping tube due to
Weight saving and shorten；When solution is less in holding tank, aeration ring decline, telescoping tube is extended since weight increases,
Telescopic end can increase with the solution of holding tank and be shortened, and as the solution of holding tank is reduced and extend, even if when solution exists
When temperature reduction has solute that precipitating is precipitated, telescopic end can also be directly sucked in upper layer saturation solution well and flow into container.
Further, telescopic end further includes horn mouth, and bell-mouthed miner diameter end is connected with telescoping tube far from one end of pipeline.
It is using above-mentioned further beneficial effect: even if stretching when solution is when temperature reduction has solute that precipitating is precipitated
End can also be directly sucked in upper layer saturation solution well and flow into container, block pipeline without sucking solute.
Further, pipeline is equipped at least one liquid outlet far from one end of holding tank, is equipped with below each liquid outlet
Container is equipped with weighing device below each container, the first solenoid valve, each first solenoid valve is equipped on each liquid outlet
It is electrically connected with the controller；The pipeline being between vacuum pump and holding tank is equipped with second solenoid valve, second solenoid valve and control
Device electrical connection processed.
It is using above-mentioned further beneficial effect: can satisfy chemical fertilizer in different temperatures and different acid-base property conditions
Under the measurement of solubility in irrigation water avoid influencing next measurement result convenient for evacuating the solution in pipeline.
Further, holding tank is placed in insulating box on grid pedestal.
It is using above-mentioned further beneficial effect: is conducive to holding tank and is heated evenly.
Further, holding tank includes slot cover and slot body, slot cover be arranged in slot body it is ported on；Pipeline is through slot cover and stretches
Enter into slot body, and pipeline is fixedly connected with slot cover.
It is using above-mentioned further beneficial effect: avoids in heating process that pressure has too big variation in holding tank, causes
The solubility measurement of solute is inaccurate.
A kind of chemical fertilizer dissolubility measuring method, includes the following steps:
It is continuously added chemical fertilizer in S100, the water contained into holding tank, until there is the analysis of chemical fertilizer crystal in water
Out, saturation solution is obtained, then puts the holding tank for being loaded with saturation solution in insulating box into, and will be accommodated using insulating box
Saturation solution in slot is heated to preset temperature；
S200, it is being set when temperature sensor measured temperature is shown as pH sensor under preset temperature value and Current Temperatures
When not changing in time range, controller records the measured value m of the surveyed pH value of pH sensor and weighing device at this time0,
Then second solenoid valve, vacuum pump and the first solenoid valve are successively opened, saturation solution is sucked into container by telescopic end, then according to
Secondary closing second solenoid valve, vacuum pump and the first solenoid valve, controller record the measured value m of weighing device at this time again1；
S300, container is moved to insulating box progress heating, drying, be then placed on weighing device, controller is recorded
The measured value m of weighing device at this time2；
S400, solubility S of saturation the used water source of solution under the preset temperature is calculated1=(m2-m0)*100/
(m1-m2)*(m1-m2)。
Detailed description of the invention
Fig. 1 is the structural schematic diagram of chemical fertilizer dissolubility sensing equipment of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
1, controller, 2, temperature sensor, 3, pH sensor, the 4.1, first solenoid valve, 4.2, second solenoid valve, 5, vacuum
Pump, 6, telescopic end, 6.1, telescoping tube, 6.2, aeration ring, 6.3, horn mouth, 7, holding tank, 7.1, slot cover, 7.2, slot body, 8, appearance
Device, 9, weighing device, 10, insulating box, 11, station, 12, liquid outlet, 13, pipeline.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in Figure 1, a kind of chemical fertilizer dissolubility sensing equipment, including holding tank 7, container 8, controller 1, insulating box
10, liquid absorption device, temperature sensor 2, pH sensor 3, weighing device 9 and station 11, wherein insulating box 10, liquid absorption device,
Temperature sensor 2, pH sensor 3 and weighing device 9 are electrically connected with controller 1 respectively, and holding tank 7 is arranged in insulating box 10,
And holding tank 7 is preferably placed in insulating box 10 on grid pedestal, is conducive to holding tank 7 in this way and is heated evenly.Temperature sensor 2
It is arranged in holding tank 7 with pH sensor 3, the temperature of solution of the temperature sensor 2 for being contained in real-time monitoring holding tank 7
Value, and measured temperature Value Data is transmitted to controller 1, solution of the pH sensor 3 for being contained in real-time monitoring holding tank 7
PH value, and surveyed pH value data are transmitted to controller 1, the solution contained in holding tank 7 is transferred to container 8 by liquid absorption device
Interior, container 8 can be the high temperature-resistant acid-resistants alkali containers such as evaporating dish or beaker, and container 8 is arranged on weighing device 9, weighing device 9
It can be weighing sensor, the quality and container 8 that weighing device 9 is used to weigh container 8 are loaded with the gross mass after solution,
The gross mass after drying solvent after solution is contained with container 8, and institute's measured data is transmitted to controller 1, weighing device 9 is arranged
On station 11.
In the present embodiment, the specific structure of liquid absorption device is as follows:
Liquid absorption device includes vacuum pump 5 and pipeline 13, and pipeline 13 is fabricated using polytetrafluoroethylene (PTFE), one end of pipeline 13
It extend into holding tank 7, the other end of pipeline 13 extends to the top of container 8, and vacuum pump 5 is arranged on pipeline 13, vacuum pump 5
It is electrically connected with controller 1, after vacuum pump 5 is opened, the solution in holding tank 7 can be drawn to by pipeline 13 by corresponding container 8
It is interior.
In addition, liquid absorption device further includes telescopic end 6, telescopic end 6 includes telescoping tube 6.1 and aeration ring 6.2, telescoping tube 6.1
It is fabricated with aeration ring 6.2 by the polytetrafluoroethylene (PTFE) of acid and alkali-resistance, telescoping tube 6.1 is vertically arranged in holding tank 7, telescoping tube
6.1 one end is located at one end in holding tank 7 with pipeline 13 and is connected, and aeration ring 6.2 is slidably arranged on telescoping tube 6.1, i.e.,
Aeration ring 6.2 can be slided up and down with telescoping tube 6.1, and when solution is more in holding tank 7, aeration ring 6.2 floats, telescoping tube
6.1 shorten due to weight saving；When solution is less in holding tank 7, aeration ring 6.2 declines, and telescoping tube 6.1 increases due to weight
Add and extend, therefore, telescopic end 6 can increase with the solution of holding tank 7 and be shortened, with the solution reduction of holding tank 7
Elongation, when solution is when temperature reduction has solute that precipitating is precipitated, telescopic end 6 can also be directly sucked in upper layer saturation solution stream well
Enter in container 8.
Telescopic end 6 further includes horn mouth 6.3, and horn mouth 6.3 is fabricated by the polytetrafluoroethylene (PTFE) of acid and alkali-resistance, horn mouth
6.3 miner diameter end is connected with telescoping tube 6.1 far from one end of pipeline 13, when solution has solute that precipitating is precipitated in temperature reduction
When, telescopic end 6 may insure that horn mouth 6.3 is directly sucked in upper layer saturation solution and flows into container 8, block up without sucking solute
Fill in pipeline 13.
Pipeline 13 far from holding tank 7 one end be equipped at least one liquid outlet 12, be specifically as follows one, two, three,
Four, five, six etc., the lower section of each liquid outlet 12 is equipped with container 8, and the lower section of each container 8 is equipped with weighing device
9, the first solenoid valve 4.1 is equipped on each liquid outlet 12, and each first solenoid valve 4.1 is electrically connected with controller 1, container 8
It is identical as institute's measured data number with the quantity of weighing device 9, can increase or decrease according to actual needs, and at least 1 with
On.The pipeline 13 being between vacuum pump 5 and holding tank 7 is equipped with second solenoid valve 4.2, second solenoid valve 4.2 and controller 1
Electrical connection, and in the present embodiment, second solenoid valve 4.2 are located at 13 highest point of pipeline, in solution suction process, open simultaneously the
Two solenoid valves 4.2 and corresponding first solenoid valve 4.1 after solution sucks, first close second solenoid valve 4.2, to fertile in pipeline 13
After liquid is drained, it is then shut off the first solenoid valve 4.1, avoids the fertilizer solution concentration of primary sample under the influence of residual solution in pipeline 13,
Measurement error is caused, the effect of setting second solenoid valve 4.2 is: convenient for evacuating the solution in pipeline 13, avoiding influencing next survey
Measure result；Solution in pipeline 13, which is flow to end, needs vacuum pump 5 to provide power, because the sequence for closing solenoid valve is first second
Solenoid valve 4.2, rear first solenoid valve 4.1, if assisted without vacuum pump 5, the closing sequence of solenoid valve if, will reverse, no
Then, the second sub-sampling cannot carry out, if the closing sequence of solenoid valve reverses, the solution in pipeline 13 can not flow
To the greatest extent, it also will affect measurement accuracy next time.
Holding tank 7 include slot cover 7.1 and slot body 7.2, slot cover 7.1 be arranged in slot body 7.2 it is ported on, 7.1 He of slot cover
Slot body 7.2 is that polytetrafluoroethylene (PTFE) is fabricated, and temperature sensor 2 and pH sensor 3 are above insulating box 10, slot cover 7.1
Preformed hole enter in slot body 7.2, pipeline 13 is through slot cover 7.1 and extending into slot body 7.2, and pipeline 13 and slot cover 7.1
It is fixedly connected.
A kind of chemical fertilizer dissolubility measuring method, includes the following steps:
S100, it takes the water source of twice of the volume of holding tank 7 to filter by 200 mesh filters, filtered water is poured into receiving
Slot 7, the depth of water are more than the half of 7.2 depth of inner cavity of slot body, while container 8 and weighing device 9 being numbered, it is ensured that the two number
Unanimously, it then is continuously added chemical fertilizer into the holding tank 7 for being loaded with the water source after filtration treatment, stirred, until having
Enough chemical fertilizer is not soluble in water to put the holding tank 7 for being loaded with saturation solution in insulating box 10 into get to saturation solution,
And the saturation solution in holding tank 7 is heated to preset temperature using insulating box 10；
S200, it is being set when 2 measured temperature of temperature sensor is shown as pH sensor 3 under preset temperature value and Current Temperatures
When not changing in range of fixing time, controller 1 records the measurement of the surveyed pH value of pH sensor 3 and weighing device 9 at this time
Value m0, second solenoid valve 4.2, vacuum pump 5 and the first solenoid valve 4.1 are then successively opened, saturation solution is sucked by telescopic end 6
To container 8, then successively closes second solenoid valve 4.2, vacuum pump 5 and the first solenoid valve 4.1, controller 1 and record this again
When weighing device 9 measured value m1；
S300, container 8 being moved to the progress heating, drying of insulating box 10, specific heating time is determined by solution sampling amount, then
It is cooled to room temperature, is then placed on weighing device 9 in insulating box 10, controller 1 records the survey of weighing device 9 at this time
Magnitude m2；
S400, solubility S of saturation the used water source of solution under the preset temperature is calculated1=(m2-m0)*100/
(m1-m2)*(m1-m2)；
S500, insulating box 10 successively cool down or are warming up to the temperature spot of setting, repeat S200, S300 and S400 step, to
The solution sampling of all temperature spots finishes, and can calculate the solubility S of same saturation the used water source of solution at different temperatures；
Or insulating box 10 successively cools down or is warming up to the temperature spot of setting, repeats S100, S200, S300 and S400
Step, the solution sampling to all temperature spots finish, can calculate different saturation solutions and use different water sources at different temperatures
Solubility S.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (8)
1. a kind of chemical fertilizer dissolubility sensing equipment, which is characterized in that including holding tank (7), container (8), controller (1) with
And insulating box (10), liquid absorption device, temperature sensor (2), pH sensor (3) and the weighing being electrically connected respectively with controller (1)
Device (9), holding tank (7) setting is in the insulating box (10), the temperature sensor (2) and the pH sensor
(3) in the holding tank (7), the solution contained in the holding tank (7) is transferred to container (8) by liquid absorption device for setting
Interior, the container (8) is arranged on the weighing device (9).
2. a kind of chemical fertilizer dissolubility sensing equipment according to claim 1, which is characterized in that the liquid absorption device packet
Vacuum pump (5) and pipeline (13) are included, one end of the pipeline (13) is extend into the holding tank (7), the pipeline (13)
The other end extends to the top of the container (8), and the vacuum pump (5) is arranged on the pipeline (13), the vacuum pump (5)
It is electrically connected with the controller (1).
3. a kind of chemical fertilizer dissolubility sensing equipment according to claim 2, which is characterized in that the liquid absorption device is also
Including telescopic end (6), the telescopic end (6) includes telescoping tube (6.1) and aeration ring (6.2), and the telescoping tube (6.1) sets vertically
It sets in the holding tank (7), one end and the pipeline (13) of the telescoping tube (6.1) are located at one end in holding tank (7)
It is connected, the other end of the telescoping tube (6.1) is arranged the aeration ring (6.2).
4. a kind of chemical fertilizer dissolubility sensing equipment according to claim 3, which is characterized in that the telescopic end (6)
It further include horn mouth (6.3), the one end of miner diameter end and the telescoping tube (6.1) far from pipeline (13) of the horn mouth (6.3)
It is connected.
5. according to a kind of described in any item chemical fertilizer dissolubility sensing equipments of claim 2-4, which is characterized in that the pipe
Road (13) is equipped at least one liquid outlet (12) far from the one end of the holding tank (7), is all provided with below each liquid outlet (12)
Have the container (8), be equipped with the weighing device (9) below each container (8), is equipped on each liquid outlet (12)
One solenoid valve (4.1), each first solenoid valve (4.1) are electrically connected with the controller (1)；Be in the vacuum pump (5) with
The pipeline (13) between the holding tank (7) is equipped with second solenoid valve (4.2), the second solenoid valve (4.2) and institute
State controller (1) electrical connection.
6. a kind of chemical fertilizer dissolubility sensing equipment according to claim 1-4, which is characterized in that the appearance
Slot (7) of receiving is placed on the interior grid pedestal of the insulating box (10).
7. a kind of chemical fertilizer dissolubility sensing equipment according to claim 6, which is characterized in that the holding tank (7)
Including slot cover (7.1) and slot body (7.2), the slot cover (7.1) setting the slot body (7.2) it is ported on；The pipeline
(13) run through slot cover (7.1) and extend into slot body (7.2), and the pipeline (13) is fixedly connected with the slot cover (7.1).
8. a kind of chemical fertilizer dissolubility measuring method, which is characterized in that use a kind of any chemistry of claim 1 to 7
Fertilizer dissolubility sensing equipment, described method includes following steps:
It is continuously added chemical fertilizer in S100, the water contained into holding tank (7), until there is the analysis of chemical fertilizer crystal in water
Out, saturation solution is obtained, is then put the holding tank (7) for being loaded with saturation solution in insulating box (10) into, and utilize constant temperature
Saturation solution in holding tank (7) is heated to preset temperature by case (10)；
S200, it is being set when temperature sensor (2) measured temperature is shown as pH sensor (3) under preset temperature value and Current Temperatures
When not changing in range of fixing time, controller (1) records the surveyed pH value of pH sensor (3) and weighing device (9) at this time
Measured value m0, second solenoid valve (4.2), vacuum pump (5) and the first solenoid valve (4.1) are then successively opened, saturation solution is logical
It crosses telescopic end (6) to be sucked into container (8), then successively closes second solenoid valve (4.2), vacuum pump (5) and the first solenoid valve
(4.1), controller (1) records the measured value m of weighing device (9) at this time again1；
S300, container (8) is moved to insulating box (10) progress heating, drying, be then placed on weighing device (9), controller
(1) the measured value m of weighing device (9) at this time is recorded2；
S400, solubility S of saturation the used water source of solution under the preset temperature is calculated1=(m2-m0)*100/(m1-m2)*
(m1-m2)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402878.6A CN108956356B (en) | 2018-04-28 | 2018-04-28 | Chemical fertilizer solubility determination equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402878.6A CN108956356B (en) | 2018-04-28 | 2018-04-28 | Chemical fertilizer solubility determination equipment and method |
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| Publication Number | Publication Date |
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| CN108956356A true CN108956356A (en) | 2018-12-07 |
| CN108956356B CN108956356B (en) | 2020-09-25 |
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| CN201810402878.6A Active CN108956356B (en) | 2018-04-28 | 2018-04-28 | Chemical fertilizer solubility determination equipment and method |
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-
2018
- 2018-04-28 CN CN201810402878.6A patent/CN108956356B/en active Active
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| JPS5587869A (en) * | 1978-12-26 | 1980-07-03 | Nippon Kokan Kk <Nkk> | Suction bell mouth built in tank |
| CN101858919A (en) * | 2009-02-16 | 2010-10-13 | 株式会社东芝 | Automatic analysing apparatus |
| US20150024505A1 (en) * | 2013-07-17 | 2015-01-22 | Saudi Arabian Oil Company | Apparatus for evaluating carbonate solubility |
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| CN105910942A (en) * | 2016-04-14 | 2016-08-31 | 梧州市产品质量检验所 | Detection method for effective potassium content of compound fertilizer |
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