CN213506142U - Automatic dosing device for adjusting pH value of liquid - Google Patents
Automatic dosing device for adjusting pH value of liquid Download PDFInfo
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- CN213506142U CN213506142U CN202022246916.9U CN202022246916U CN213506142U CN 213506142 U CN213506142 U CN 213506142U CN 202022246916 U CN202022246916 U CN 202022246916U CN 213506142 U CN213506142 U CN 213506142U
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- metering pump
- acid solution
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- solution tank
- mixer
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Abstract
The utility model relates to the technical field of chemical feeding devices, in particular to an automatic chemical feeding device for adjusting the pH value of liquid, which comprises an acid solution tank, an alkali solution tank, a mixer and a control cabinet, wherein liquid level meters are arranged in the acid solution tank and the alkali solution tank, an outlet of the acid solution tank is connected with an acid solution metering pump, an outlet of the alkali solution tank is connected with an alkali solution metering pump, an outlet of the acid solution metering pump and an outlet of the alkali solution metering pump are connected with an inlet of the mixer, and an outlet of the mixer is connected with a pH meter for detecting the pH value of the liquid in the mixer; the acid solution and the alkali solution of the acid solution tank and the alkali solution tank are finally collected into the mixer through the acid solution metering pump and the alkali solution metering pump which are respectively connected with each other to form a closed-loop control loop.
Description
Technical Field
The utility model relates to a charge technical field specifically is an automatic reagent feeding device for adjusting liquid pH value.
Background
In the existing system, the pH value is balanced by manual operation, but the manual medicine adding operation has high labor intensity, the pH value in water cannot be accurately controlled, the pH value adjustment control fluctuation is large, the control is difficult, and the danger that an operator is burnt by acid and alkali exists.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model aims to provide an automatic medicine adding device which is used for adjusting the pH value of liquid, is easy to control and has high adjusting speed.
The utility model discloses the task is realized through following technical scheme:
the utility model provides an automatic reagent feeding device for adjusting liquid pH value, including acid solution case, the alkaline solution case, blender and switch board, all be equipped with the level gauge in acid solution case and the alkaline solution incasement, the exit linkage of acid solution case has the acid solution measuring pump, the connecting line between acid solution case and the acid solution measuring pump is equipped with acid solution and goes out the liquid valve, the exit linkage of alkaline solution case has the alkaline solution measuring pump, the connecting line between alkaline solution case and the alkaline solution measuring pump is equipped with alkaline solution and goes out the liquid valve, the export of acid solution measuring pump and the export of alkaline solution measuring pump are all connected the import of blender, the exit linkage of blender has the pH table that is used for detecting its interior liquid pH value, the switch board is connected with acid solution measuring pump, alkaline solution measuring pump, level gauge and pH table electricity respectively.
Preferably, the connecting pipeline between the acid solution tank and the acid solution metering pump is further provided with an inlet valve of the acid solution metering pump and an acid solution filter, and the connecting pipeline between the alkaline solution tank and the alkaline solution metering pump is provided with an inlet valve of the alkaline solution metering pump and an alkaline solution filter.
Preferably, a stirrer is arranged in each of the acid solution tank and the alkali solution tank, and the stirrer is electrically connected with the control cabinet.
Preferably, a pipeline between the outlet of the acid solution metering pump and the inlet of the mixer is provided with an acid solution metering pump check valve and an acid solution metering pump outlet valve; and an alkaline solution metering pump check valve and an alkaline solution metering pump outlet valve are arranged on a pipeline between the outlet of the alkaline solution metering pump and the inlet of the mixer.
Preferably, an acid adding pressure gauge is further arranged on a pipeline between the outlet of the acid solution metering pump and the inlet of the mixer; and an alkali adding pressure gauge is also arranged on a pipeline between the outlet of the alkali solution metering pump and the inlet of the mixer.
Preferably, the acid solution tank and the alkaline solution tank are both connected with an emptying pipeline and an emptying valve.
Compared with the prior art, the acid solution and the alkali solution in the acid solution tank and the alkali solution tank are collected in the mixer finally through the acid solution metering pump and the alkali solution metering pump which are connected with each other to form a closed loop control loop, the pH meter detects the pH value in the mixer, the control cabinet receives the detected signal and then automatically adds acid or alkali according to the set pH value range in the water, so that the control cabinet controls the acid solution metering pump and the alkali solution metering pump of the acid solution tank and the alkali solution tank to realize automatic acid or alkali adding, further the pH value in the water is maintained in a certain value or a certain range, the acid-alkali adjusting speed is high, the tracking is timely, compared with manual adding operation, the labor intensity is high, the danger of acid and alkali burning exists, the automatic dosing degree of the embodiment is high, the automatic dosing can be realized without manual operation, the danger coefficient is reduced, the pH value adjusting control fluctuation is small, the control is easy, is suitable for old and small systems to automatically regulate pH value and improve the pH value.
The conception, the specific structure and the effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic diagram of the automatic medicine adding device for adjusting the pH value of liquid of the present invention.
Wherein: the system comprises an acid solution tank 1, an alkaline solution tank 2, a mixer 3, a control cabinet 4, a liquid level meter 5, an acid solution metering pump 6, an acid solution outlet valve 7, an alkaline solution metering pump 8, an alkaline solution outlet valve 9, a pH meter 11, an acid solution metering pump inlet valve 12, an acid solution Y-shaped filter 13, an alkaline solution metering pump inlet valve 14, an alkaline solution Y-shaped filter 15, a stirrer 16, an acid solution metering pump check valve 17, an acid solution metering pump outlet valve 18, an alkaline solution metering pump check valve 19, an alkaline solution metering pump outlet valve 21, an acid adding pressure gauge 22, an alkali adding pressure gauge 23 and an emptying valve 24.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the description of the specific embodiments is intended to be illustrative only and is not intended to be limiting.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element through intervening elements. Also, the terms "upper", "lower", "left", "right", "upper", "lower", "lateral", "vertical", and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
As shown in fig. 1, the automatic chemical feeding device for adjusting the pH value of a liquid comprises an acid solution tank 1, an alkali solution tank 2, a mixer 3 and a control cabinet 4, wherein liquid level meters 5 are respectively arranged in the acid solution tank 1 and the alkali solution tank 2, an outlet of the acid solution tank 1 is connected with an acid solution metering pump 6, a connecting pipeline between the acid solution tank 1 and the acid solution metering pump 6 is provided with an acid solution outlet valve 7, an outlet of the alkali solution tank 2 is connected with an alkali solution metering pump 8, a connecting pipeline between the alkali solution tank 2 and the alkali solution metering pump 8 is provided with an alkali solution outlet valve 9, an outlet of the acid solution metering pump 6 and an outlet of the alkali solution metering pump 8 are respectively connected with an inlet of the mixer 3, an outlet of the mixer 3 is connected with a pH meter 11 for detecting the pH value of the liquid, the alkaline solution metering pump 8, the liquid level meter 5 and the pH meter 11 are electrically connected. In this embodiment, the acid solution and the alkali solution in the acid solution tank 1 and the alkali solution tank 2 are collected into the mixer 3 through the acid solution metering pump 6 and the alkali solution metering pump 8 respectively connected to each other, and are combined into a closed-loop control loop, the pH meter 11 detects the pH value in the mixer 3, the control cabinet 4 controls the acid solution metering pump 6 and the alkali solution metering pump 8 of the acid solution tank 1 and the alkali solution tank 2 to realize automatic acid or alkali addition according to the set range of the pH value in water after receiving the detected signal, so as to control the acid solution metering pump 6 and the alkali solution metering pump 8 of the water tank 2 to maintain the pH value in water at a certain value or a certain range, the acid and alkali adjustment speed is fast, and the tracking is timely, compared with the manual dosing operation, the labor intensity is high, the danger of acid and alkali burn exists, the degree of automation is high, the automatic dosing can be performed without manual operation, the control precision is improved, the automatic dosing level is improved, and the automatic pH regulation device is suitable for old people and is improved and perfected by automatic pH regulation of a small system.
An acid solution metering pump inlet valve 12 and an acid solution Y-type filter 13 are further arranged on a connecting pipeline between the acid solution tank 1 and the acid solution metering pump 6, an alkali solution metering pump inlet valve 14 and an alkali solution Y-type filter 15 are arranged on a connecting pipeline between the alkali solution tank 2 and the alkali solution metering pump 8, and the acid solution metering pump inlet valve 12 and the alkali solution metering pump inlet valve 14 are used for controlling the amount of the acid solution and the alkali solution entering the metering pump, so that the solution entering the metering pump can be conveniently controlled. The acid solution Y-shaped filter 13 and the alkali solution Y-shaped filter 15 can filter the solution entering the acid solution metering pump 6 and the alkali solution metering pump 8, and play a role in protection.
The acid solution tank 1 and the alkali solution tank 2 are both internally provided with a stirrer 16, the stirrer 16 is electrically connected with the control cabinet 4, and the stirrer 16 can be used for fully stirring the liquid in the acid solution tank 1 or the alkali solution tank 2.
An acid solution metering pump check valve 17 and an acid solution metering pump outlet valve 18 are arranged on a pipeline between the outlet of the acid solution metering pump 6 and the inlet of the mixer 3; an alkaline solution metering pump check valve 19 and an alkaline solution metering pump outlet valve 21 are arranged on a pipeline between the outlet of the alkaline solution metering pump 8 and the inlet of the mixer 3.
An acid adding pressure gauge 22 is further arranged on a pipeline between the outlet of the acid solution metering pump 6 and the inlet of the mixer 3; and an alkali adding pressure gauge 23, an acid adding pressure gauge 22 and an alkali adding pressure gauge 23 are further arranged on the pipeline between the outlet of the alkali solution metering pump 8 and the inlet of the mixer 3, and the acid and alkali pressure values in the pipeline can be detected.
The acid solution tank 1 and the alkali solution tank 2 are both connected with an emptying pipeline and an emptying valve 24.
In this embodiment, the control cabinet 4 is a pl c frequency converter electric control cabinet system.
The working process of the above embodiment is as follows:
(1) preparing an acid solution and an alkali solution: closing an emptying valve 24 connected with outlets of the acid solution tank 1 and the alkali solution tank 2, respectively injecting diluent into the acid solution tank 1 and the alkali solution tank 2 to required liquid levels, adding a proper amount of acid and alkali solution according to required concentration, controlling the stirrer 16 to start by the control cabinet 4, and uniformly mixing the liquid (regularly stirring by the stirrer 16) for later use.
(2) Setting the lowest value and the highest value of the pH value required to be controlled by the process medium in the electric control cabinet 4;
(3) and opening an acid solution outlet valve 7, an acid solution Y-shaped filter 13 and an acid solution metering pump inlet valve 12 of the acid solution tank 1, an alkali solution outlet valve 9, an alkali solution Y-shaped filter 15 and an alkali solution metering pump 8 inlet pump of the alkali solution tank 2, switching the control cabinet 4 to an automatic operation state at the moment, and adjusting the pH value dosing device to be in a standby state.
(4) When the pH meter 11 detects that the pH value of the mixed solution in the mixer 3 is smaller than the lowest control value required by the process medium and the delta pH (the difference between the control value required by the process medium and the pH value of the inlet water is a negative number) is smaller than 0, the control cabinet 4 controls the alkaline solution metering pump 8 to be automatically started to realize alkaline addition regulation, the flow of the alkaline solution metering pump 8 is automatically regulated by frequency conversion along with the change of the pH value, and the control cabinet 4 controls the alkaline solution metering pump 8 to stop running when the pH value reaches the control range required by the process medium.
(5) When the pH meter 11 detects that the pH value of the mixed solution in the mixer 3 is greater than the lowest control value required by the process medium and the delta pH (the difference between the control value required by the process medium and the pH value of the inlet water is a positive number) is greater than 0, the control cabinet 4 controls the acid solution metering pump 6 to be automatically started to realize acid addition regulation, the flow of the acid solution metering pump 6 is automatically regulated by frequency conversion along with the change of the pH value, and the control cabinet 4 controls the acid solution metering pump 6 to stop running when the pH value reaches the control range required by the process medium.
(6) The agitators 16 in the acid solution tank 1 and the alkaline solution tank 2 are controlled by the programming in the control cabinet 4, and are started at regular time and run intermittently.
(7) The acid solution metering pump 6 and the alkali solution metering pump 8 are respectively subjected to signal interlocking protection of the liquid level meter 5 in the acid solution tank 1 and the liquid level meter 5 in the alkali solution tank 2, alarm is given at high liquid level and low liquid level, and the operation of the metering pumps is stopped at ultralow liquid level.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (6)
1. The utility model provides an automatic reagent feeding device for adjusting liquid pH value which characterized in that: the device comprises an acid solution tank, an alkaline solution tank, a mixer and a control cabinet, wherein level meters are arranged in the acid solution tank and the alkaline solution tank, an outlet of the acid solution tank is connected with an acid solution metering pump, a connecting pipeline between the acid solution tank and the acid solution metering pump is provided with an acid solution liquid outlet valve, an outlet of the alkaline solution tank is connected with an alkaline solution metering pump, an alkaline solution liquid outlet valve is arranged on a connecting pipeline between the alkaline solution tank and the alkaline solution metering pump, an outlet of the acid solution metering pump and an outlet of the alkaline solution metering pump are connected with an inlet of the mixer, an outlet of the mixer is connected with a pH meter for detecting the pH value of liquid in the mixer, and the control cabinet is respectively electrically connected with the acid solution metering pump, the alkaline solution.
2. The automatic reagent feeding device for adjusting the pH value of liquid according to claim 1, wherein the connecting pipeline between the acid solution tank and the acid solution metering pump is further provided with an inlet valve of the acid solution metering pump and an acid solution filter, and the connecting pipeline between the alkaline solution tank and the alkaline solution metering pump is provided with an inlet valve of the alkaline solution metering pump and an alkaline solution filter.
3. The automatic reagent feeding device for adjusting the pH value of liquid according to claim 1, wherein a stirrer is arranged in each of the acid solution tank and the alkali solution tank, and the stirrer is electrically connected with the control cabinet.
4. The automatic dosing device for adjusting the pH of a liquid according to claim 1, wherein a check valve of an acid solution metering pump and an outlet valve of the acid solution metering pump are provided on a pipeline between the outlet of the acid solution metering pump and the inlet of the mixer; and an alkaline solution metering pump check valve and an alkaline solution metering pump outlet valve are arranged on a pipeline between the outlet of the alkaline solution metering pump and the inlet of the mixer.
5. The automatic medicine adding device for adjusting the pH value of liquid according to claim 1, wherein an acid adding pressure gauge is further arranged on a pipeline between the outlet of the acid solution metering pump and the inlet of the mixer; and an alkali adding pressure gauge is also arranged on a pipeline between the outlet of the alkali solution metering pump and the inlet of the mixer.
6. The automatic dosing device for adjusting the pH value of a liquid according to claim 1, wherein an emptying pipeline and an emptying valve are connected to the acid solution tank and the alkali solution tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022246916.9U CN213506142U (en) | 2020-10-09 | 2020-10-09 | Automatic dosing device for adjusting pH value of liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022246916.9U CN213506142U (en) | 2020-10-09 | 2020-10-09 | Automatic dosing device for adjusting pH value of liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213506142U true CN213506142U (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022246916.9U Active CN213506142U (en) | 2020-10-09 | 2020-10-09 | Automatic dosing device for adjusting pH value of liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213506142U (en) |
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2020
- 2020-10-09 CN CN202022246916.9U patent/CN213506142U/en active Active
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