CN207301734U - A kind of pH value automaton with titration mechanism - Google Patents
A kind of pH value automaton with titration mechanism Download PDFInfo
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- CN207301734U CN207301734U CN201721373766.XU CN201721373766U CN207301734U CN 207301734 U CN207301734 U CN 207301734U CN 201721373766 U CN201721373766 U CN 201721373766U CN 207301734 U CN207301734 U CN 207301734U
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- titration
- pump
- mcu
- value
- acid
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Abstract
The utility model discloses a kind of pH value automaton with titration mechanism, including MCU, memory, display screen, acidity-basicity sensor, liquid level sensor, pH value adjusting mechanism and titration mechanism；Acidity-basicity sensor and liquid level sensor are arranged in reaction vessel；PH value adjusting mechanism includes acid-base accommodation flow container and conduit；One end connection acid-base accommodation flow container of conduit, other end coupled reaction container；Conduit, which is equipped with, adjusts pump (B1)；The current supply circuit for adjusting pump is equipped with the first electronic switch (K1) for being controlled by MCU；Titrating mechanism includes titration flow container and buret, buret one end connection titration flow container, other end coupled reaction container；Buret is equipped with titration pump (B2)；The current supply circuit of titration pump is equipped with manual switch (K3) or is controlled by the first electronic switch (K2) of MCU.This has the pH value automaton integrated level height of titration mechanism, feature-rich.
Description
Technical field
It the utility model is related to a kind of pH value automaton with titration mechanism.
Background technology
Existing pH value automaton function is single, without titration function, can not meet the application of many occasions.
Therefore, it is necessary to design a kind of pH value automaton with titration mechanism.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of pH value automaton with titration mechanism,
This has the pH value automaton integrated level of titration mechanism high, has the function of the function of titrating and adjust pH value.
The technical solution of utility model is as follows：
A kind of pH value automaton with titration mechanism, including MCU, memory, display screen, acid-base value sensing
Device, liquid level sensor, pH value adjusting mechanism and titration mechanism；
Memory, display screen, acidity-basicity sensor and liquid level sensor are connected with MCU；Acidity-basicity sensor and liquid level
Sensor is arranged in reaction vessel；
PH value adjusting mechanism includes acid-base accommodation flow container and conduit；One end connection acid-base accommodation flow container of conduit, the other end
Coupled reaction container；Conduit is equipped with to adjust and pumps；The current supply circuit for adjusting pump is equipped with the first electronic switch for being controlled by MCU；
Titrating mechanism includes titration flow container and buret, buret one end connection titration flow container, and other end coupled reaction is held
Device；Buret is equipped with titration and pumps；The current supply circuit of titration pump is equipped with manual switch or is controlled by the first electronic cutting of MCU
Close.
The current supply circuit of titration pump is equipped with manual switch and the second electronic switch, and manual switch and the second electronic switch are simultaneously
Connection.
PH value adjusting mechanism includes 2 acid-base accommodation flow containers and 2 conduits；2 acid-base accommodation flow containers are respectively acid solution tank
And alkali liquid tank；The first end of 2 conduits connects acid solution tank and alkali liquid tank respectively；The second end of 2 conduits with reaction vessel phase
Even；The first adjusting pump and second is respectively equipped with 2 conduits and adjusts pump；First, which adjusts pump and second, is adjusted on the current supply circuit of pump
It is respectively equipped with the first sub switch for being controlled by MCU and the second sub switch for being controlled by MCU.
MCU is microcontroller or DSP or arm processor, such as uses 89C51 processors.
Liquid level sensor uses ultrasonic liquid level sensor or photoelectric liquid level sensor；
Acidity-basicity sensor pops one's head in (pH combination electrodes) for pH.
Memory includes internal RAM and FLASH memory, further includes the USB flash disk and SD card of outside.
MCU is connected by CAN bus or RS485 serial ports with host computer.
Beneficial effect：
The pH value automaton with titration mechanism of the utility model, in existing pH value automaton base
Titration function is added on plinth so that function is more perfect, more conducively ensures that reaction is smoothed out.In addition, titration pump can pass through
Manual switch is directly opened, shielding MCU controls.
Using embodiment 2 device when, can neatly add acid solution and lye, flexibility is good, easily controllable.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram (corresponding embodiment 1) of the pH value automaton with titration mechanism；
Fig. 2 is general structure schematic diagram (the corresponding embodiment 2 for the pH value automaton with titration mechanism；
Fig. 3 adjusts circuit diagram for brightness of display screen.
Embodiment
The utility model is described in further details below with reference to the drawings and specific embodiments：
Embodiment 1：Such as Fig. 1~2, a kind of pH value automaton with titration mechanism, including it is MCU, memory, aobvious
Display screen, acidity-basicity sensor, liquid level sensor, pH value adjusting mechanism and titration mechanism；
Memory, display screen, acidity-basicity sensor and liquid level sensor are connected with MCU；Acidity-basicity sensor and liquid level
Sensor is arranged in reaction vessel；
PH value adjusting mechanism includes acid-base accommodation flow container and conduit；One end connection acid-base accommodation flow container of conduit, the other end
Coupled reaction container；Conduit, which is equipped with, adjusts pump B1；The current supply circuit for adjusting pump is equipped with the first electronic switch for being controlled by MCU
K1；
Titrating mechanism includes titration flow container and buret, buret one end connection titration flow container, and other end coupled reaction is held
Device；Buret is equipped with titration pump B2；The current supply circuit of titration pump is equipped with manual switch K3 and is controlled by the first electronics of MCU
Switch K2.Manual switch is in parallel with the second electronic switch.
PH value adjusting mechanism includes 2 acid-base accommodation flow containers and 2 conduits；2 acid-base accommodation flow containers are respectively acid solution tank
And alkali liquid tank；The first end of 2 conduits connects acid solution tank and alkali liquid tank respectively；The second end of 2 conduits with reaction vessel phase
Even；The first adjusting pump B1A and second is respectively equipped with 2 conduits and adjusts pump B1B；First, which adjusts pump and second, adjusts the power supply of pump
The the first sub switch K1A for being controlled by MCU and the second sub switch K1B for being controlled by MCU are respectively equipped with circuit.
In Fig. 1 and Fig. 2, K1, K1A, the corresponding liquid pump of a termination of K1B and K2, K3, the other end (upper end in figure) connects
Power supply (such as 3.3V or 5V DC power supplies).
Such as Fig. 3, the utility model also has light adjusting circuit, i.e. brightness regulating circuit, can adjust the brightness of display backlight.
The brightness regulating circuit includes LED light string (lamp string that multiple LED light in i.e. annular light compensating lamp are in series), three poles
Pipe, potentiometer Rx and A/D converter；Triode is NPN type triode；Rotary switch and electricity on the casing of automaton
Position device Rx is coaxially connected；
Potentiometer Rx and first resistor R1 concatenates to form partial pressure branch, and partial pressure branch one terminates positive pole Vcc, partial pressure branch
The other end ground connection on road；The tie point of potentiometer Rx and first resistor R1 connect the input terminal of A/D converter；A/D converter it is defeated
Go out to terminate the data-in port of MCU；
LED light string includes the LED light of multiple concatenations；The cathode of LED light string meets positive pole Vcc；The anode of LED light string connects
The C poles of triode, the E poles of triode are grounded through second resistance R2；The output terminal for meeting MCU of the B poles of triode.Positive pole
Vcc is 5V, and A/D converter is 8 Bits Serial output type converters.
Claims (3)
1. a kind of pH value automaton with titration mechanism, it is characterised in that including MCU, memory, display screen, acid
Alkalinity sensor, liquid level sensor, pH value adjusting mechanism and titration mechanism；
Memory, display screen, acidity-basicity sensor and liquid level sensor are connected with MCU；Acidity-basicity sensor and level sensing
Device is arranged in reaction vessel；
PH value adjusting mechanism includes acid-base accommodation flow container and conduit；One end connection acid-base accommodation flow container of conduit, other end connection
Reaction vessel；Conduit, which is equipped with, adjusts pump (B1)；The current supply circuit for adjusting pump is equipped with the first electronic switch for being controlled by MCU
(K1)；
Titrating mechanism includes titration flow container and buret, buret one end connection titration flow container, other end coupled reaction container；Drop
Fixed tube is equipped with titration pump (B2)；The current supply circuit of titration pump is equipped with manual switch (K3) or is controlled by the first electronics of MCU
Switch (K2).
2. the pH value automaton with titration mechanism according to claim 1, it is characterised in that titrate the confession of pump
Electrical circuit is equipped with manual switch (K3) and the second electronic switch (K2), manual switch are in parallel with the second electronic switch.
3. the pH value automaton with titration mechanism according to claim 1 or 2, it is characterised in that pH value tune
Section mechanism includes 2 acid-base accommodation flow containers and 2 conduits；2 acid-base accommodation flow containers are respectively acid solution tank and alkali liquid tank；2 are led
The first end of pipe connects acid solution tank and alkali liquid tank respectively；The second end of 2 conduits is connected with reaction vessel；Divide on 2 conduits
She You not the first adjusting pump (B1A) and the second adjusting pump (B1B)；First, which adjusts pump and second, is adjusted on the current supply circuit of pump respectively
Equipped with being controlled by the first sub switch (K1A) of MCU and be controlled by the second sub switch (K1B) of MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721373766.XU CN207301734U (en) | 2017-10-10 | 2017-10-10 | A kind of pH value automaton with titration mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721373766.XU CN207301734U (en) | 2017-10-10 | 2017-10-10 | A kind of pH value automaton with titration mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207301734U true CN207301734U (en) | 2018-05-01 |
Family
ID=62273937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721373766.XU Active CN207301734U (en) | 2017-10-10 | 2017-10-10 | A kind of pH value automaton with titration mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207301734U (en) |
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2017
- 2017-10-10 CN CN201721373766.XU patent/CN207301734U/en active Active
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