CN217996868U - Practical pH adjustment system - Google Patents

Abstract

The utility model provides a practical pH governing system, includes pH adjusting barrel I and pH adjusting barrel II, be connected with the inlet tube I of taking water inlet valve I on the pH adjusting barrel I, take medicine adding pipe I and the aeration pipe I of taking aeration valve I with medicine adding valve I, aeration pipe I stretches into pH adjusting barrel I bottom to be connected with aeration dish I, pH adjusting barrel I bottom one side is connected with the outlet pipe I of taking water outlet valve I, be connected with the inlet tube II of taking water inlet valve II on the pH adjusting barrel II, take medicine adding pipe II and the aeration pipe II of taking aeration valve II with medicine adding valve II, aeration pipe II stretches into pH adjusting barrel II bottoms to be connected with aeration dish II, II bottoms one side of pH adjusting barrel is connected with the outlet pipe II of taking water outlet valve II. The utility model discloses a pH governing system adopts the twin-tub to adjust, can guarantee the incessant inflow of medium, adds medicine flow steerable, adds the medicine volume according to pH value automatically regulated in the bucket, because the cushioning effect of pH adjusting barrel can solve medium flow discontinuous, the undulant big problem of pH value.

Description

Practical pH adjustment system

Technical Field

The utility model relates to a practical pH governing system.

Background

In various engineering projects, the pH of the medium is required to be adjusted to a relatively precise value, as required by certain processes. The common acid adjusting mode at the present stage is to add medicine in a pipeline to adjust the pH value, mix the medicine and a medium through a pipeline mixer, and adjust the medicine adding amount through the feedback value of a pH meter at the outlet of the pipeline mixer by using PID control so as to achieve the purpose of adjusting the pH value.

However, the application range of the prior art is narrow, the mixing effect of the pipeline mixer is required to reach an ideal state, the medium flow is stable and continuous, and the pH value cannot fluctuate greatly. In actual use, the ideal working condition is difficult to achieve, and due to the fact that many working conditions are very complex, the harsh requirements of the existing pH adjusting scheme on the operating conditions are difficult to meet under most conditions, the pH of a medium needs to be adjusted to be close to neutral 7 in some processes, and the requirements can not be met due to slight fluctuation of the adding amount. For example, in a salt recovery system, the pH of the produced concentrated brine needs to be strictly controlled at 7~8, and the closer to neutrality, the better. The pH of the produced strong brine is influenced by raw water, the pH change is large, and continuous water production cannot be realized. Due to the fact that the hysteresis quality of adjustment in the prior art is serious, thorough mixing of the mixer is difficult to achieve, and the pH value of the strong brine is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough of above-mentioned current device, provide a practical pH governing system, under the condition of various complicated operating modes, can both guarantee that medium pH adjusts to required scope.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a practical pH governing system, includes pH adjusting barrel I and pH adjusting barrel II, be connected with the inlet tube I of taking water inlet valve I on the pH adjusting barrel I, take medicine adding pipe I and the aeration pipe I of taking aeration valve I with medicine adding valve I, aeration pipe I stretches into pH adjusting barrel I bottom to be connected with aeration dish I, pH adjusting barrel I bottom one side is connected with the outlet pipe I of taking water outlet valve I, be connected with the inlet tube II of taking water inlet valve II on the pH adjusting barrel II, take medicine adding pipe II and the aeration pipe II of taking aeration valve II with medicine adding valve II, aeration pipe II stretches into pH adjusting barrel II bottoms to be connected with aeration dish II, II bottoms one side of pH adjusting barrel is connected with the outlet pipe II of taking water outlet valve II. The pH adjusting system adopts a PLC control system, a delivery pump connected with a water inlet pipe, a dosing pipe and an aeration pipe is respectively arranged outside the pH adjusting system, the pH adjusting barrel is used as a mixing container for medicament and medium, and the medicament and the medium are added into the barrel. The water inlet valve and the water inlet pipe are used for adding a medium, the water outlet valve is used for discharging the medium after the pH is adjusted, the medicine adding valve and the medicine adding pipe are used for adding a medicine, and the aeration valve, the aeration pipe and the aeration disc accelerate the mixing of the medicine and the medium by adding air. And the control system controls the action coordination of each actuator according to the written program.

As the preferred, I top one side in pH adjusting barrel is equipped with overflow pipe I, and overflow pipe I is connected with outlet pipe I, II top one side in pH adjusting barrel are equipped with overflow pipe II, and overflow pipe II is connected with outlet pipe II. The overflow pipe keeps the pH adjusting barrel at a certain liquid level and quickly discharges redundant liquid.

Preferably, the pH adjusting barrel I is connected with a pH meter I, and the pH adjusting barrel II is connected with a pH meter II. The pH meter is used for measuring the pH value of the solution in the pH adjusting barrel.

Preferably, the probe of the pH meter I extends into the pH adjusting barrel I to the position close to the water outlet, and the probe of the pH meter II extends into the pH adjusting barrel II to the position close to the water outlet.

Preferably, the aeration disc I is positioned on the side opposite to the pH meter I, the aeration disc II is positioned on the side opposite to the pH meter II, and the aeration disc is kept at a certain distance from the pH probe.

Preferably, the bottom of the pH adjusting barrel I is connected with a liquid level meter I, and the bottom of the pH adjusting barrel II is connected with a liquid level meter II. The liquid level meter is used for measuring the height of liquid in the pH adjusting barrel.

The beneficial effects of the utility model reside in that: the utility model discloses a pH governing system adopts the twin-tub to adjust, can guarantee the incessant inflow of medium, adds medicine flow steerable, adds the medicine volume according to pH value automatically regulated in the bucket, because the cushioning effect of pH adjusting barrel can solve medium flow discontinuous, and the undulant big problem of pH value lets the user obtain the pH value that oneself wanted, adjusts accurate height moreover.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The main elements in the figures are symbolically illustrated: 101. the device comprises a pH adjusting barrel I, a pH adjusting barrel 102, a water inlet valve I, a water inlet valve 103, a water inlet pipe I, a water inlet pipe 104, a dosing valve I, a dosing valve 105 and a dosing pipe I; 106. the device comprises aeration valves I and 107, aeration pipes I and 108, aeration discs I and 109, water outlet valves I and 110, water outlet pipes I and 111, overflow pipes I and 112, pH meters I and 113, liquid level meters I and 201, pH adjusting barrels II and 202, water inlet valves II and 203, water inlet pipes II and 204, dosing valves II and 205 and a dosing pipe II; 206. aeration valves II, 207, aeration pipes II, 208, aeration discs II, 209, water outlet valves II, 210, water outlet pipes II, 211, overflow pipes II, 212, pH meters II, 213 and a liquid level meter II.

Detailed Description

The invention will be further explained by means of the following description and the attached drawings.

The implementation mode is as follows: as shown in figure 1, a practical pH adjusting system comprises a pH adjusting barrel I101 and a pH adjusting barrel II 201, wherein a water inlet pipe I103 with a water inlet valve I102, a medicine feeding pipe I105 with a medicine feeding valve I104 and an aeration pipe I107 with an aeration valve I106 are connected to the pH adjusting barrel I101, the aeration pipe I107 extends into the bottom of the pH adjusting barrel I101 and is connected with an aeration disc I108, a water outlet pipe I110 with a water outlet valve I109 is connected to one side of the bottom of the pH adjusting barrel I101, a water inlet pipe II 203 with a water inlet valve II 202, a medicine feeding pipe II 205 with a medicine feeding valve II 204 and an aeration pipe II 207 with an aeration valve II 206 are connected to the pH adjusting barrel II 201, the aeration pipe II 207 extends into the bottom of the pH adjusting barrel II 201 and is connected with an aeration disc II 208, and a water outlet pipe II 210 with a water outlet valve II is connected to one side of the bottom of the pH adjusting barrel II 201.

Wherein, I101 top one side of pH adjusting barrel is equipped with overflow pipe I111, and overflow pipe I111 is connected with outlet pipe I110, II 201 top one side of pH adjusting barrel is equipped with overflow pipe II 211, and overflow pipe II 211 is connected with outlet pipe II 210.

The pH adjusting barrel I101 is connected with a pH meter I112, and the pH adjusting barrel II 201 is connected with a pH meter II 212. The probe of the pH meter I112 extends into the pH adjusting barrel I101 to the position near the water outlet, and the probe of the pH meter II 212 extends into the pH adjusting barrel II 201 to the position near the water outlet. And the aeration disc I108 is positioned at the opposite side of the pH meter I112, and the aeration disc II 208 is positioned at the opposite side of the pH meter II 212.

In addition, the bottom of the pH adjusting barrel I101 is connected with a liquid level meter I113, and the bottom of the pH adjusting barrel II 201 is connected with a liquid level meter II 213.

The working process is as follows: a water inlet valve I102 of a pH adjusting barrel I101 is opened, a medium is added along a water inlet pipe I103, after a set liquid level is reached, the pH adjusting barrel I101 enters a pH adjusting state, a water inlet valve II 202 of a pH adjusting barrel II 201 is opened, and the pH adjusting barrel II 201 enters a water inlet state. A water inlet valve I102 of a pH adjusting barrel I101 is closed, a medicine adding valve I104 and an aeration valve I106 are opened at the same time, and medicine adding aeration is started through a medicine adding pipe I105 and an aeration pipe I107. Stopping adding the chemicals when the pH value reaches the middle set value; after the aeration is carried out for a period of time, the aeration valve I106 is closed, the mixture is kept still for a period of time, if the pH value reaches a discharge set value, the water outlet valve I109 is opened, the medium is discharged out through the water outlet pipe I110, and if the pH value does not reach the discharge value, the fine adjustment stage is carried out. The fine adjustment stage is divided into aeration dosing, aeration and standing, dosing is stopped after a fixed period of time, dosing is stopped after a period of time, standing is performed after a period of time of aeration, if the pH value reaches the discharge value, the water outlet valve I109 is opened, the medium is discharged, and if the pH value does not reach the discharge value, the fine adjustment stage enters the aeration dosing stage again, and circulation is performed according to the steps until the discharge value is reached. And after the discharge is finished, waiting. When the medium in the pH adjusting barrel II 201 is added to the set liquid level, the pH adjusting barrel II 201 enters an adjusting stage, the pH adjusting barrel I101 opens the water inlet valve I102 to enter a water inlet stage, and the steps are alternately carried out.

The above description is only the specific embodiments of the present invention, but the structural features of the present invention are not limited thereto, the present invention can be used in similar products, and any person skilled in the art is in the field of the present invention, and all the changes or modifications made are covered by the claims of the present invention.

Claims (6)

1. A practical pH adjustment system, characterized in that: the automatic water-saving device comprises a pH adjusting barrel I (101) and a pH adjusting barrel II (201), wherein a water inlet pipe I (103) with a water inlet valve I (102), a medicine feeding pipe I (105) with a medicine feeding valve I (104) and an aeration pipe I (107) with an aeration valve I (106) are connected to the pH adjusting barrel I (101), the aeration pipe I (107) extends into the bottom of the pH adjusting barrel I (101) and is connected with an aeration disc I (108), one side of the bottom of the pH adjusting barrel I (101) is connected with a water outlet pipe I (110) with a water outlet valve I (109), the pH adjusting barrel II (201) is connected with a water inlet pipe II (203) with a water inlet valve II (202), a medicine feeding pipe II (205) with a medicine feeding valve II (204) and an aeration pipe II (207) with an aeration valve II (206), the aeration pipe II (207) extends into the bottom of the pH adjusting barrel II (201) and is connected with an aeration disc II (208), and one side of the bottom of the pH adjusting barrel (201) is connected with a water outlet pipe (210) with a water outlet valve II (209 II (II).

2. A practical pH adjustment system according to claim 1, characterized in that: one side of the top of the pH adjusting barrel I (101) is provided with an overflow pipe I (111), the overflow pipe I (111) is connected with a water outlet pipe I (110), one side of the top of the pH adjusting barrel II (201) is provided with an overflow pipe II (211), and the overflow pipe II (211) is connected with a water outlet pipe II (210).

3. A practical pH adjusting system according to claim 1, characterized in that: the pH adjusting barrel I (101) is connected with a pH meter I (112), and the pH adjusting barrel II (201) is connected with a pH meter II (212).

4. A practical pH adjustment system according to claim 3, characterized in that: the probe of the pH meter I (112) extends into the pH adjusting barrel I (101) to the position near the water outlet, and the probe of the pH meter II (212) extends into the pH adjusting barrel II (201) to the position near the water outlet.

5. A practical pH regulating system according to claim 4, characterized in that: the aeration disc I (108) is positioned on the side opposite to the pH meter I (112), and the aeration disc II (208) is positioned on the side opposite to the pH meter II (212).

6. A practical pH regulating system according to any of claims 1-5, wherein: the bottom of the pH adjusting barrel I (101) is connected with a liquid level meter I (113), and the bottom of the pH adjusting barrel II (201) is connected with a liquid level meter II (213).

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