CN210376077U - Full-automatic pH value adjusting device for salt spray test - Google Patents
Full-automatic pH value adjusting device for salt spray test Download PDFInfo
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- CN210376077U CN210376077U CN201920724016.5U CN201920724016U CN210376077U CN 210376077 U CN210376077 U CN 210376077U CN 201920724016 U CN201920724016 U CN 201920724016U CN 210376077 U CN210376077 U CN 210376077U
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Abstract
The utility model discloses a full-automatic adjusting device of salt fog test PH value, it includes salt concentration preparation container, is equipped with PH meter A, manometer, temperature table and agitator on salt concentration preparation container, links to each other with sodium hydroxide solution bucket and hydrochloric acid bucket respectively through flow control device in the top of salt concentration preparation container, links to each other with solenoid valve A, salt fog case and shower nozzle in proper order through the pipeline in the bottom of salt concentration preparation container, PH meter A, manometer, temperature table, solenoid valve, flow control device and solenoid valve A all link to each other with PLC control system, is equipped with the funnel that collects the spray solution in the salt fog case, connects gradually solenoid valve B, stock solution container and solenoid valve C from top to bottom in the below of funnel, is equipped with PH meter B in the stock solution container, solenoid valve B, solenoid valve C and PH meter B all link to each other with PLC control system, the utility model discloses can be automatically to the more accurate regulation of PH value.
Description
Technical Field
The utility model relates to a full-automatic adjusting device of experimental pH value of salt fog belongs to salt fog test tool field.
Background
The salt spray environment test is to use a salt spray test box as a test device with a certain volume space, and to use a manual method in the volume space to cause the salt spray environment to check the salt spray corrosion resistance quality of the product. Compared with the natural environment, the salt concentration of the chloride in the salt spray environment can be several times or dozens of times of that in the salt spray environment, so that the corrosion speed is greatly improved, the time for obtaining the result is greatly shortened when the salt spray test is carried out on the product, and the salt concentration needs to be adjusted because the pH value of the salt spray is changed in the salt spray test process.
The prior patent No. CN205613355U, the patent name ' a device for preparing sodium chloride solution for salt spray test ', the technical means ' comprises a control panel, a box body, a pH automatic regulating device, an acid liquor storage bottle and an alkali liquor storage bottle, wherein the lower part of the box body is provided with a drain pipe with a corrosion-resistant switch, the bottom of the box body is provided with a magnetic stirrer and four support legs, one side of the box body is connected with an L-shaped graduated tube, the other side of the box body is provided with a control panel, the control panel is connected with the magnetic stirrer and the pH automatic regulating device, the pH automatic regulating device is connected with a pH meter probe, the acid liquor storage bottle and the alkali liquor storage bottle are connected through a peristaltic pump and a capillary tube, the control panel is provided with a power controller, a magnetic stirrer controller and the pH automatic regulating device, the lower part of the box body is connected with a drain pipe with a, one side of the box body is provided with an L-shaped graduated tube, and the power controller controls the power on/off of the equipment; the magnetic stirrer controller controls the opening/closing of the magnetic stirrer at the bottom of the box body; the pH automatic adjusting device can set the pH value of the solution to be prepared, is connected with a pH meter probe and can control two peristaltic pumps through a data processor, and the two peristaltic pumps are respectively connected with an acid liquor storage bottle and an alkali liquor storage bottle; the L-shaped graduated tube on one side of the box body is provided with volume scales, so that the volume of the solution in the box body can be accurately displayed; and a drain pipe below the box body can drain the residual solution in the box body. Although it has a function of adjusting PH, the PH of the salt solution cannot be accurately measured by the PH meter probe directly used in the process of using the salt spray due to the relationship of concentration and the like, and the inaccuracy of preparing the salt solution is also directly related.
Namely: there is a need for a full-automatic PH adjustment device that can automatically adjust the PH more precisely.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a full automatic adjusting device of experimental pH value of salt fog, can be automatically to the more accurate regulation of pH value, can overcome prior art's not enough.
The technical scheme of the utility model is that: a full-automatic PH value adjusting device for a salt spray test comprises a salt concentration preparation container, wherein a PH measuring meter A, a pressure gauge, a water temperature meter and a stirrer are arranged on the salt concentration preparation container, the upper part of the salt concentration preparation container is respectively connected with a sodium hydroxide solution barrel and a hydrochloric acid barrel through a flow control device, the bottom of the salt concentration preparation container is connected with an electromagnetic valve A, a salt spray box and a spray nozzle in turn through pipelines, the PH meter A, the pressure gauge, the water temperature gauge, the electromagnetic valve, the flow control device and the electromagnetic valve A are all connected with the PLC control system, a funnel for collecting spraying solution is arranged in the salt spray box, a solenoid valve B, a liquid storage container and a solenoid valve C are sequentially connected below the funnel from top to bottom, and a PH measuring meter B is arranged in the liquid storage container, and the electromagnetic valve B, the electromagnetic valve C and the PH measuring meter B are all connected with a PLC control system.
The flow control device comprises an electromagnetic valve D and a flowmeter D which are arranged between a salt concentration preparation container and a sodium hydroxide solution barrel, and an electromagnetic valve E and a flowmeter E between the salt concentration preparation container and a hydrochloric acid barrel.
And the stirrer is provided with an electromagnetic valve F connected with a PLC control system.
Compared with the prior art, the utility model discloses full-automatic adjusting device of salt spray test PH value is equipped with the funnel that collects the solution usefulness of spraying in the salt fog incasement, has connected gradually solenoid valve B, stock solution container and solenoid valve C from top to bottom in the below of funnel, is equipped with PH meter B in stock solution container, solenoid valve B, solenoid valve C and PH meter B all link to each other with PLC control system, can collect spraying vaporific solution through the funnel in real time like this, after certain time interval or accumulation certain solution, the solenoid valve B of controlling again is opened and is put into stock solution container with the solution that the accumulation was collected, PH meter B in the stock solution container surveys PH again, carry out the flowing back through solenoid valve C at last, the mode of surveying is become liquid again to the fog that passes through like this, can more accurate assurance come out the change condition of solution concentration from the salt fog case, thereby PLC control system calculates the sodium hydroxide or the hydrochloric acid that need add, controlling a sodium hydroxide solution barrel and a hydrochloric acid barrel to discharge a proper amount of sodium hydroxide or hydrochloric acid in a salt concentration preparation container through a flow control device to perform accurate preparation;
the flow control device comprises an electromagnetic valve D and a flowmeter D which are arranged between a salt concentration preparation container and a sodium hydroxide solution barrel, and an electromagnetic valve E and a flowmeter E which are arranged between the salt concentration preparation container and a hydrochloric acid barrel, so that the amount of the sodium hydroxide solution can be accurately discharged through the electromagnetic valve D and the flowmeter D; accurately discharging the amount of hydrochloric acid through an electromagnetic valve E and a flow meter E;
the electromagnetic valve F connected with the PLC control system is arranged on the stirrer, so that the stirring of the stirrer can be controlled through the electromagnetic valve F when the stirring is needed.
Drawings
Fig. 1 is a schematic view of the connection structure of the present invention.
Wherein, the salt concentration preparation container 1; pH meter A2; a pressure gauge 3; a water temperature gauge 4; a stirrer 5; a sodium hydroxide solution barrel 6; a hydrochloric acid bucket 7; solenoid valve A8; a salt spray tank 9; a PLC control system 10; a hopper 11; solenoid valve B12; a liquid storage container 13; solenoid valve C14; pH meter B15; solenoid valve D16; a flow meter D17; a solenoid valve E18; a flow meter E19; solenoid valve F20.
Detailed Description
Embodiment 1. as shown in fig. 1, a full automatic PH adjusting device for salt spray test comprises a salt concentration preparation container 1, wherein a PH meter a2, a pressure gauge 3, a water temperature gauge 4 and a stirrer 5 are arranged on the salt concentration preparation container 1, and a solenoid valve F20 connected with a PLC control system 10 is arranged on the stirrer 5; the device is characterized in that the upper part of a salt concentration preparation container 1 is respectively connected with a sodium hydroxide solution barrel 6 and a hydrochloric acid barrel 7 through a flow control device, the bottom of the salt concentration preparation container 1 is sequentially connected with an electromagnetic valve A8 and a salt fog box 9 through pipelines, a spray nozzle is arranged in the salt fog box 9, a pH meter A2, a pressure gauge 3, a water temperature gauge 4, an electromagnetic valve A8, a flow control device and an electromagnetic valve A8 are all connected with a PLC control system 10, a funnel 11 for collecting spray solution is arranged in the salt fog box 9, an electromagnetic valve B12, a liquid storage container 13 and an electromagnetic valve C14 are sequentially connected below the funnel 11 from top to bottom, a pH meter B15 is arranged on the liquid storage container 13, and the electromagnetic valve B12, the electromagnetic valve C14 and the pH meter B15 are all connected with the PLC control system 10; the flow control device comprises an electromagnetic valve D16 and a flow meter D17 which are arranged between a salt concentration preparation container 1 and a sodium hydroxide solution barrel 6, an electromagnetic valve E18 and a flow meter E19 which are arranged between the salt concentration preparation container 1 and a hydrochloric acid barrel 7, and the electromagnetic valve D16, the flow meter D17, the electromagnetic valve E18 and the flow meter E19 are all connected with the PLC control system 10; the PLC control system 10 is selected as Siemens SIEMENS S71200.
According to the invention, the pH value of the collected solution is monitored by the pH meter B15, and then the pH value of the initial salt solution is adjusted in real time by the PLC control system 10.
Specific working principle
The PLC control system 10 controls an electromagnetic valve B12 and an electromagnetic valve C14 to collect solution in a liquid storage container 13 in a timing mode, meanwhile, a pH meter B15 measures the solution in real time, signals are transmitted to the PLC control system 10, if the PLC control system 10 finds that the pH value needs to be adjusted, the PLC control system 10 collects the pH value of the salt solution in the current salt concentration preparation container 1, the temperature of the salt solution, the pressure of the water bottom of the current salt solution, the volume V1 of a stirrer in equipment and the inner diameter of the salt concentration preparation container 1, the volume of the sodium hydroxide solution or hydrochloric acid with known concentration which needs to be added in the pH adjustment of the current salt solution is calculated through a data processor, and finally, the PLC control system 10 controls the addition of the sodium hydroxide solution and the hydrochloric acid into the salt solution, and adjusts the pH value until the pH value detected by the pH meter A2 and the pH value of the salt solution collected by the pH.
Claims (3)
1. A full-automatic PH value adjusting device for a salt spray test comprises a salt concentration preparation container (1), a PH measuring meter A (2), a pressure gauge (3), a water temperature gauge (4) and a stirrer (5) are arranged on the salt concentration preparation container (1), the upper part of the salt concentration preparation container (1) is respectively connected with a sodium hydroxide solution barrel (6) and a hydrochloric acid barrel (7) through a flow control device, the bottom of the salt concentration preparation container (1) is connected with an electromagnetic valve A (8) and a salt mist box (9) in sequence through pipelines, a spraying nozzle is arranged in the salt spray box (9), the PH measuring meter A (2), the pressure gauge (3), the water temperature meter (4), the electromagnetic valve A (8), the flow control device and the electromagnetic valve A (8) are all connected with a PLC control system (10), be equipped with data processor in PLC control system (10) links to each other, its characterized in that: be equipped with in salt fog case (9) and collect funnel (11) that spray solution used, from top to bottom be connected with solenoid valve B (12), stock solution container (13) and solenoid valve C (14) in proper order in the below of funnel (11), be equipped with PH meter B (15) on stock solution container (13), solenoid valve B (12), solenoid valve C (14) and PH meter B (15) all link to each other with PLC control system (10).
2. The full-automatic pH value adjusting device for the salt spray test of claim 1, which is characterized in that: the flow control device comprises an electromagnetic valve D (16) and a flow meter D (17) which are arranged between the salt concentration preparation container (1) and the sodium hydroxide solution barrel (6), and an electromagnetic valve E (18) and a flow meter E (19) which are arranged between the salt concentration preparation container (1) and the hydrochloric acid barrel (7).
3. The full-automatic pH value adjusting device for the salt spray test of claim 1, which is characterized in that: an electromagnetic valve F (20) connected with the PLC control system (10) is arranged on the stirrer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920724016.5U CN210376077U (en) | 2019-05-20 | 2019-05-20 | Full-automatic pH value adjusting device for salt spray test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920724016.5U CN210376077U (en) | 2019-05-20 | 2019-05-20 | Full-automatic pH value adjusting device for salt spray test |
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| Publication Number | Publication Date |
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| CN210376077U true CN210376077U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920724016.5U Active CN210376077U (en) | 2019-05-20 | 2019-05-20 | Full-automatic pH value adjusting device for salt spray test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114994143A (en) * | 2022-05-26 | 2022-09-02 | 中国兵器装备集团西南技术工程研究所 | Method for online regulating and controlling concentration of chloride ions in salt spray test box |
| CN115096796A (en) * | 2022-05-31 | 2022-09-23 | 东莞市众志时代试验设备有限公司 | Partition-based PH calibration method for salt spray test chamber |
-
2019
- 2019-05-20 CN CN201920724016.5U patent/CN210376077U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114994143A (en) * | 2022-05-26 | 2022-09-02 | 中国兵器装备集团西南技术工程研究所 | Method for online regulating and controlling concentration of chloride ions in salt spray test box |
| CN114994143B (en) * | 2022-05-26 | 2024-02-20 | 中国兵器装备集团西南技术工程研究所 | Method for online regulating and controlling chloride ion concentration in salt spray test box |
| CN115096796A (en) * | 2022-05-31 | 2022-09-23 | 东莞市众志时代试验设备有限公司 | Partition-based PH calibration method for salt spray test chamber |
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