CN216711696U - Automatic control system suitable for pH value adjustment of hydrogenation acidic water - Google Patents
Automatic control system suitable for pH value adjustment of hydrogenation acidic water Download PDFInfo
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- CN216711696U CN216711696U CN202122550931.7U CN202122550931U CN216711696U CN 216711696 U CN216711696 U CN 216711696U CN 202122550931 U CN202122550931 U CN 202122550931U CN 216711696 U CN216711696 U CN 216711696U
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Abstract
The utility model relates to the technical field of chemical equipment, in particular to an automatic control system suitable for adjusting the pH value of hydrogenated acidic water. The automatic control system suitable for adjusting the pH value of the hydrogenation acidic water comprises a three-phase separator, wherein an underwater spraying device is arranged on the three-phase separator, a pH meter probe is arranged in the three-phase separator, each pH meter probe is connected with a pH value detector, and the pH value detector is connected with a pH value controller; the acid liquor feeding pipeline and the alkali liquor feeding pipeline are also included, and an acid valve and an acid pump are arranged on the acid liquor feeding pipeline; an alkali liquor input pipeline is provided with an alkali valve and an alkali pump; the acid liquor input pipeline and the alkali liquor input pipeline are both communicated with the underwater spraying device; the pH value controller is connected with an acid valve and an alkali valve. Provides an automatic control system for relieving the corrosion of the acidic water to equipment and being suitable for adjusting the pH value of the hydrogenated acidic water.
Description
Technical Field
The utility model relates to the technical field of chemical equipment, in particular to an automatic control system suitable for adjusting the pH value of hydrogenated acidic water.
Background
At present, in the acidic water treatment in the hydrogenation process of petrochemical enterprises, the acidic water has strong corrosivity, and is easy to cause larger corrosion to equipment, so that the service life of the equipment is influenced. In the process, the pH value of the acidic water needs to be kept stable, otherwise, the acidic water has high corrosiveness on equipment and causes environmental pollution.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: overcomes the defects of the prior art, and provides an automatic control system which relieves the corrosion of the acidic water to equipment and is suitable for adjusting the pH value of the hydrogenated acidic water.
The technical scheme adopted by the utility model for solving the technical problem is as follows: the automatic control system suitable for adjusting the pH value of the hydrogenation acidic water comprises a three-phase separator, wherein an underwater spraying device is arranged on the three-phase separator, pH meter probes are arranged in the three-phase separator, each pH meter probe is connected with a pH value detector, and the pH value detector is connected with a pH value controller;
the acid liquor feeding device also comprises an acid liquor feeding pipeline and an alkali liquor feeding pipeline, wherein an acid valve and an acid pump are arranged on the acid liquor feeding pipeline; an alkali valve and an alkali pump are arranged on the alkali liquor input pipeline;
the acid liquor input pipeline and the alkali liquor input pipeline are both communicated with the underwater spraying device;
and the pH value controller is connected with the acid valve and the alkali valve.
The acid pump is a peristaltic pump and is positioned between the acid valve and the underwater spraying device. The acid pump adopts a peristaltic pump and has the characteristic of dry running, so that the pH value controller can control the inflow of acid liquor or alkali liquor of the underwater spraying device only by controlling the switches of the acid valve and the alkali valve.
The alkali pump is a peristaltic pump and is positioned between the alkali valve and the underwater spraying device. The peristaltic pump is used for the same purpose. The pH value controller can be also controlled and connected with the acid pump and the alkali pump, and the acid pump and the alkali pump can be automatically controlled by the pH value controller.
The acid valve is an automatic valve.
The alkali valve is an automatic valve. The acid valve is arranged on the acid liquid input pipeline to control the input of the acid liquid, and the alkali valve is arranged on the alkali liquid input pipeline to control the input of the alkali liquid. The pH value controller controls the on-off of the acid valve and the alkali valve according to the pH value information sent by the pH value detector.
The acid valve and the alkali valve are made of corrosion-resistant materials.
The underwater spraying device comprises a collecting pipe and a plurality of straight pipes connected with the collecting pipe, and one ends of the straight pipes, far away from the collecting pipe, are inserted underwater.
The manifold is in threaded connection with the straight pipe. The collecting pipe is provided with a threaded hole corresponding to the straight pipe, so that later-period replacement is facilitated. The straight pipes are made of inert materials to prevent corrosion, and the spraying density of the acid/alkali liquor is adjusted by setting the number of the straight pipes. For the threaded holes of the header to which the corresponding straight pipes are not connected, these threaded holes may be plugged by a plug or the like. The collecting pipe is in threaded connection with the straight pipe, the length of the straight pipe inserted underwater can be set according to the rotation amount of the threads, and acid/alkali liquor can be injected into different depths, so that the process of adjusting the pH value is quicker.
The number of the pH meter probes is more than or equal to 1, and when the number of the pH meter probes is more than 1, the heights of the pH meter probes in the three-phase separator are different. Namely different pH meter probes respectively measure the pH values of the acidic water at different depths,
and a protection net is arranged outside the pH meter probe. The function of protecting the probe is achieved, and the probe is prevented from being damaged by foreign matters.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides an automatic control system suitable for adjusting the pH value of hydrogenation acidic water, which can automatically control an acid/alkali valve switch to inject acid/alkali liquor into a tank to maintain the pH value in the tank stable according to the pH value of the acidic water in an acidic water storage tank, effectively relieve the corrosion of the acidic water to equipment and reduce environmental pollution; automatic regulation and control are realized, manpower and material resources are saved, and the working strength is reduced.
Drawings
FIG. 1 is a schematic view of the connection structure of the present invention.
In the figure: 1. an acid valve; 2. an acid pump; 3. an alkaline valve; 4. an alkali pump; 5. an underwater spray device; 6. a three-phase separator; 7. a pH meter probe; 8. a pH value detector; 9. a pH value controller.
Detailed Description
Embodiments of the utility model are further described below with reference to the accompanying drawings:
examples
As shown in fig. 1, the device comprises a three-phase separator 6, wherein an underwater spray device 5 is arranged on the three-phase separator 6, a pH meter probe 7 is arranged in the three-phase separator 6, each pH meter probe 7 is connected with a pH value detector 8, and the pH value detector 8 is connected with a pH value controller 9;
the acid liquor feeding device also comprises an acid liquor feeding pipeline and an alkali liquor feeding pipeline, wherein an acid valve 1 and an acid pump 2 are arranged on the acid liquor feeding pipeline; an alkali valve 3 and an alkali pump 4 are arranged on the alkali liquor input pipeline;
the acid liquor input pipeline and the alkali liquor input pipeline are both communicated with the underwater spraying device 5;
the PH value controller 9 is connected with the acid valve 1 and the alkali valve 3.
The acid pump 2 is a peristaltic pump, and the acid pump 2 is positioned between the acid valve 1 and the underwater spraying device 5. In the embodiment, the acid pump 2 is a peristaltic pump and has the characteristic of dry running, so that the pH value controller 9 can control the inflow of acid liquor or alkali liquor of the underwater spraying device 5 only by controlling the switches of the acid valve 1 and the alkali valve 3.
The alkali pump 4 is a peristaltic pump, and the alkali pump 4 is positioned between the alkali valve 3 and the underwater spraying device 5. The peristaltic pump is used for the same purpose. The pH value controller 9 can also be connected with the acid pump 2 and the alkali pump 4 in a control way, and the acid pump 2 and the alkali pump 4 can be automatically controlled by the pH value controller 9.
In this embodiment, automatic valves are used for both the acid valve 1 and the alkali valve 3. The acid valve 1 is arranged on the acid liquid input pipeline to control the input of the acid liquid, and the alkali valve 3 is arranged on the alkali liquid input pipeline to control the input of the alkali liquid. The pH value controller 9 controls the opening and closing of the pH valve 1 and the alkali valve 3 according to the pH value information sent by the pH value detector 8.
The acid valve 1 and the alkali valve 3 are made of corrosion-resistant materials.
The underwater spraying device 5 comprises a collecting pipe and a plurality of straight pipes connected with the collecting pipe, and one ends of the straight pipes, far away from the collecting pipe, are inserted into water.
The manifold is connected with the straight pipe through screw threads. The collecting pipe is provided with a threaded hole corresponding to the straight pipe, so that later-period replacement is facilitated. The straight pipes are made of inert materials to prevent corrosion, and the spraying density of the acid/alkali liquor is adjusted by setting the number of the straight pipes. For the threaded holes of the header to which the corresponding straight pipes are not connected, these threaded holes may be plugged by a plug or the like. The collecting pipe is connected with the straight pipe through threads, the length of the straight pipe inserted into the water can be set through the number of the threads, and acid/alkali liquor can be injected into different depths, so that the process of adjusting the pH value is quicker.
The number of the pH meter probes 7 is more than or equal to 1, and when the number is more than 1, the heights of the pH meter probes 7 in the three-phase separator 6 are different. Different pH meter probes 7 measure the acid water pH value of different degree of depth respectively promptly, refer to fig. 1, and this embodiment sets up 3 pH meter probes 7, and its height reduces from left to right in proper order to the acid water pH value of measuring the different degree of depth through the mode of calculating the average value, obtains actual acid water pH value, guarantees the accuracy of measuring.
And a protection net is arranged outside the pH meter probe 7. The function of protecting the probe is achieved, and the probe is prevented from being damaged by foreign matters.
The working principle is as follows: when the device is used, the pH value of the acidic water in the three-phase separator 6 is measured through the pH meter probe 7, the pH value detector 8 receives the measured pH value of the acidic water in the three-phase separator 6 to judge the pH value information of the acidic water, then the pH value information is sent to the pH value controller 9, the pH value controller 9 controls the opening of a valve and a pump on a corresponding acid-base channel according to the pH value information, and acid/alkali liquor is added into the three-phase separator 6 to achieve the purpose of adjusting the pH value.
Claims (10)
1. An automatic control system suitable for adjusting the pH value of hydrogenation acidic water is characterized by comprising a three-phase separator (6), wherein an underwater spraying device (5) is arranged on the three-phase separator (6), pH meter probes (7) are arranged in the three-phase separator (6), each pH meter probe (7) is connected with a pH value detector (8), and each pH value detector (8) is connected with a pH value controller (9);
the acid liquor feeding device also comprises an acid liquor feeding pipeline and an alkali liquor feeding pipeline, wherein an acid valve (1) and an acid pump (2) are arranged on the acid liquor feeding pipeline; an alkali valve (3) and an alkali pump (4) are arranged on the alkali liquor input pipeline;
the acid liquor input pipeline and the alkali liquor input pipeline are both communicated with an underwater spraying device (5);
the pH value controller (9) is connected with the acid valve (1) and the alkali valve (3).
2. The automatic control system for pH value adjustment of hydrosour water according to claim 1, wherein the acid pump (2) is a peristaltic pump, and the acid pump (2) is located between the acid valve (1) and the underwater spray device (5).
3. The automatic control system for pH value adjustment of hydrosour water according to claim 1, wherein the base pump (4) is a peristaltic pump, and the base pump (4) is located between the base valve (3) and the underwater spray device (5).
4. The automatic control system for pH value adjustment of hydrosour water according to claim 1, wherein the acid valve (1) is an automatic valve.
5. The automatic control system for pH value adjustment of hydrosour water according to claim 1, wherein the base valve (3) is an automatic valve.
6. The automatic control system for pH value adjustment of acidic water for hydrogenation according to claim 1, wherein the acid valve (1) and the base valve (3) are made of corrosion-resistant materials.
7. The automatic control system for pH value adjustment of hydrosour water according to claim 1, wherein the underwater spray device (5) comprises a header and a plurality of straight pipes connected with the header, and one ends of the straight pipes, which are far away from the header, are inserted underwater.
8. The automated control system for pH adjustment of hydrosour water of claim 7, wherein the header is threadably connected to the straight tube.
9. The automatic control system for pH value adjustment of hydrosour water according to claim 1, wherein the number of the pH meter probes (7) is 1 or more, and when the number is more than 1, the heights of the pH meter probes (7) in the three-phase separator (6) are different.
10. The automatic control system suitable for pH value adjustment of hydrogenated acidic water according to claim 1 or 9, characterized in that a protective net is arranged outside the pH meter probe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122550931.7U CN216711696U (en) | 2021-10-22 | 2021-10-22 | Automatic control system suitable for pH value adjustment of hydrogenation acidic water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122550931.7U CN216711696U (en) | 2021-10-22 | 2021-10-22 | Automatic control system suitable for pH value adjustment of hydrogenation acidic water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216711696U true CN216711696U (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122550931.7U Active CN216711696U (en) | 2021-10-22 | 2021-10-22 | Automatic control system suitable for pH value adjustment of hydrogenation acidic water |
Country Status (1)
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| CN (1) | CN216711696U (en) |
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2021
- 2021-10-22 CN CN202122550931.7U patent/CN216711696U/en active Active
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