Automatic pH adjusting device

Abstract

The utility model discloses an automatic pH adjusting device which comprises a mixing cylinder, the mixing cylinder is used for mixing to-be-treated water and an adjusting agent, the bottom of the mixing cylinder is connected with a vertical pipeline, the bottom of the vertical pipeline is vertically connected with a horizontal pipeline, the horizontal pipeline is connected with a liquid storage tank, and a water wheel is arranged in the vertical pipeline; the axis of the water wheel is a horizontal line and deviates from the axis of the vertical pipeline, one side of the water wheel is connected with a transmission mechanism movably penetrating through the side wall of the vertical pipeline, the transmission mechanism is connected with a first rotating shaft, one section of the first rotating shaft movably extends into the horizontal pipeline, and a plurality of stirring blades located in the horizontal pipeline are arranged on the first rotating shaft; and a first waterproof bearing matched with the first rotating shaft is arranged on the horizontal pipeline. The device has the advantages that the working efficiency is improved, and the equipment cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of water treatment, and in particular to an automatic pH adjustment device. Background Art

[0002] When treating sewage or regulating water quality, it is necessary to adjust the pH value of the treated water for subsequent use or further treatment. The existing pH regulating device uses a conditioning tank to mix the treated water with a regulator (acid or alkali), and then uses a stirring mechanism in the conditioning tank to fully stir the mixed liquid to achieve the effect of adjusting the pH value of the mixed liquid. The setting of the conditioning tank and its internal stirring mechanism not only increases the equipment cost, but also reduces the work efficiency due to the required stirring time, and has low practicality. Utility Model Content

[0003] The main purpose of the present application is to provide an automatic pH adjustment device, aiming to solve the technical problem of low working efficiency of the pH adjustment device.

[0004] To achieve the above-mentioned purpose, the present application provides an automatic pH adjustment device, including a mixing drum, which is used to mix the water to be treated and the regulator. The bottom of the mixing drum is connected to a vertical pipe, the bottom of the vertical pipe is vertically connected to a horizontal pipe, the horizontal pipe is connected to a liquid storage tank, a water wheel is arranged in the vertical pipe, the axis of the water wheel is a horizontal line and deviates from the axis of the vertical pipe, one side of the water wheel is connected to a transmission mechanism that movably penetrates the side wall of the vertical pipe, the transmission mechanism is connected to a first rotating shaft, a section of the first rotating shaft movably extends into the horizontal pipe, the first rotating shaft is provided with a plurality of stirring blades located in the horizontal pipe, and the horizontal pipe is provided with a first waterproof bearing that cooperates with the first rotating shaft.

[0005] Optionally, the transmission mechanism includes a second rotating shaft connected to one side of the water wheel, the second rotating shaft movably passes through the side wall of the vertical pipe and is connected to a driving bevel gear, the side wall of the vertical pipe is provided with a second waterproof bearing that cooperates with the second rotating shaft, the driving bevel gear is meshedly connected to a driven bevel gear, and the driven bevel gear is connected to the top of the first rotating shaft.

[0006] Optionally, the mixing cylinder is a conical cylinder, and a liquid infusion tube is connected to a tangent position of the side wall of the mixing cylinder, and the liquid infusion tube is used to transport the water to be treated and the regulator.

[0007] Optionally, a spiral flow channel is provided on the inner wall of the mixing cylinder.

[0008] Optionally, the infusion tube is connected to a water pump, which is connected to a water tank through a water pipe. The water tank is used to hold water to be treated. The infusion tube is connected to a regulator adding mechanism located between the water pump and the mixing cylinder, and the regulator adding mechanism is used to add regulator into the infusion tube.

[0009] Optionally, the regulator adding mechanism includes two liquid adding tubes connected to the infusion tube, both of which are provided with metering pumps, and the two liquid adding tubes are respectively connected to an acid tank and an alkali tank.

[0010] Optionally, a first pH sensor is provided in the water tank, the first pH sensor is electrically connected to a PLC controller, and both metering pumps are electrically connected to the PLC controller.

[0011] Optionally, a second pH sensor electrically connected to the PLC controller is provided in the liquid storage tank, and the liquid storage tank is connected to a reflux mechanism, the other end of the reflux mechanism is connected to an infusion tube, and the reflux mechanism is used to transport the liquid in the liquid storage tank to the infusion tube.

[0012] Optionally, the reflux mechanism includes a reflux pump connected to the liquid storage tank, the reflux pump is connected to a reflux pipe, the reflux pipe is connected to a first solenoid valve, the first solenoid valve is connected to the infusion pipe at a position between the water pump and the liquid adding pipe, and the first solenoid valve and the reflux pump are both electrically connected to the PLC controller.

[0013] Optionally, the liquid storage tank is connected to a second solenoid valve, and the second solenoid valve is connected to a liquid outlet pipe.

[0014] The beneficial effects that this application can achieve are as follows:

[0015] The present application mixes the water to be treated and the regulator through a mixing drum to form a mixed liquid and flows downward into the vertical pipe. The mixed liquid will impact the water wheel in the process of falling due to its own weight. Since the axis line of the water wheel deviates from the axis line of the vertical pipe, that is, the water wheel deviates from the center of the mixing drum, most of the weight of the mixed liquid is concentrated on one side of the water wheel, so that the gravity impact of the mixed liquid can be used to drive the water wheel to rotate. The rotation of the water wheel can have a certain stirring and mixing effect on the mixed liquid. At the same time, the water wheel drives the first rotating shaft to rotate through the transmission mechanism, so that the stirring blades also rotate accordingly. When the mixed liquid flows from the vertical pipe through the horizontal pipe, it is stirred for the second time under the action of the stirring blades to ensure sufficient stirring, so that the mixed liquid is stirred while flowing in the pipe. There is no need to set up a separate tempering tank for stirring and mixing, which improves work efficiency. Since the setting of the tempering tank is omitted, the equipment cost is also reduced, and the practicability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0017] Figure 1This is a schematic structural diagram of an automatic pH adjustment device in an embodiment of the present application;

[0018] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0019] Figure 3 Schematic diagram of the connection structure between the mixing cylinder and the infusion tube in the embodiment of the present application (top view).

[0020] Reference numerals:

[0021] 110-mixing cylinder, 111-spiral flow channel, 120-vertical pipeline, 130-horizontal pipeline, 140-liquid storage tank, 150-water wheel, 160-transmission mechanism, 161-second rotating shaft, 162-driving bevel gear, 163-driven bevel gear, 164-second waterproof bearing, 170-first rotating shaft, 180-stirring blade, 190-first waterproof bearing, 210-infusion tube, 220-water pump, 230-water tank, 240-regulator adding mechanism, 241-liquid adding tube, 242-metering pump, 243-acid tank, 244-alkali tank, 250-first pH sensor, 260-PLC controller, 270-second pH sensor, 280-reflux mechanism, 281-reflux pump, 282-reflux pipe, 283-first solenoid valve, 290-second solenoid valve, 310-liquid outlet pipe.

[0022] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0025] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] Example

[0028] Reference Figure 1-Figure 3 The present embodiment provides a pH automatic adjustment device, including a mixing drum 110, the mixing drum 110 is used to mix the water to be treated and the adjusting agent, the bottom of the mixing drum 110 is connected to a vertical pipe 120, the bottom of the vertical pipe 120 is vertically connected to a horizontal pipe 130, the horizontal pipe 130 is connected to a liquid storage tank 140, a water wheel 150 is arranged in the vertical pipe 120, the axis of the water wheel 150 is a horizontal line and deviates from the axis of the vertical pipe 120, one side of the water wheel 150 is connected to a transmission mechanism 160 that movably penetrates the side wall of the vertical pipe 120, the transmission mechanism 160 is connected to a first rotating shaft 170, a section of the first rotating shaft 170 movably extends into the horizontal pipe 130, a plurality of stirring blades 180 located in the horizontal pipe 130 are arranged on the first rotating shaft 170, and a first waterproof bearing 190 matched with the first rotating shaft 170 is arranged on the horizontal pipe 130.

[0029] In this embodiment, after the water to be treated and the conditioning agent (acid or alkali) are mixed by the mixing drum 110 to form a mixed liquid and flow downward into the vertical pipe 120, the mixed liquid will impact the water wheel 150 during the process of falling under its own weight, and because the axis of the water wheel 150 deviates from the axis of the vertical pipe 120, that is, the water wheel 150 is deviated from the center of the mixing drum 110, most of the weight of the mixed liquid is concentrated on one side of the water wheel 150, so that the gravity impact of the mixed liquid can be used to drive the water wheel 150 to rotate, and the rotation of the water wheel 150 can play a certain stirring and mixing effect on the mixed liquid, and at the same time, the water wheel 150 is driven by the transmission mechanism 1 60 drives the first rotating shaft 170 to rotate, so that the stirring blade 180 also rotates. When the mixed liquid flows from the vertical pipe 120 through the horizontal pipe 130, it is stirred for the second time under the action of the stirring blade 180 to ensure sufficient stirring, so that the mixed liquid is stirred while flowing in the pipe. After sufficient stirring, the pH value of the water to be treated can be adjusted, and there is no need to set up a separate conditioning tank for stirring and mixing. The water after the pH is adjusted can be temporarily stored in the liquid storage tank 140. Therefore, this embodiment not only improves the work efficiency, but also reduces the equipment cost due to the omission of the conditioning tank, and has high practicality.

[0030] It should be noted that the axis line of the first rotating shaft 170 can be set to deviate from the axis line of the horizontal pipe 130, that is, the first rotating shaft 170 is also set to deviate from the center of the horizontal pipe 130, so that most of the mixed liquid acts on the stirring blade 180 on one side of the first rotating shaft 170, thereby promoting the first rotating shaft 170 to rotate faster in its own rotation direction, so that the water wheel 150 and the first rotating shaft 170 can promote each other's rotation and improve the stirring effect. The structural design is ingenious, using water impact as the power drive, without the need to set up a motor drive, and the cost is low; the first waterproof bearing 190 is set on the upper wall of the horizontal pipe 130 to simultaneously cooperate with the rotation and support the first rotating shaft 170.

[0031] As an optional embodiment, the transmission mechanism 160 includes a second rotating shaft 161 connected to one side of the water wheel 150, the second rotating shaft 161 movably passes through the side wall of the vertical pipe 120 and is connected to a driving bevel gear 162, the side wall of the vertical pipe 120 is provided with a second waterproof bearing 164 that cooperates with the second rotating shaft 161, the driving bevel gear 162 is meshedly connected to the driven bevel gear 163, and the driven bevel gear 163 is connected to the top of the first rotating shaft 170.

[0032] In this embodiment, when the water wheel 150 rotates, the second rotating shaft 161 is driven to rotate, thereby driving the active bevel gear 162 and the driven bevel gear 163 to rotate, and finally driving the first rotating shaft 170 to rotate, thereby realizing a transmission effect.

[0033] As an optional embodiment, the mixing cylinder 110 is a conical cylinder, and a liquid infusion tube 210 is connected to the tangent position of the side wall of the mixing cylinder 110. The liquid infusion tube 210 is used to transport the water to be treated and the regulator.

[0034] In this embodiment, when the water to be treated and the regulator simultaneously enter the mixing barrel 110 through the infusion tube 210, they have a certain initial flow rate. At the same time, since the infusion tube 210 is connected to the mixing barrel 110 in the tangential direction of the side wall of the mixing barrel 110, and the mixing barrel 110 has a conical structure, the liquid can enter the mixing barrel 110 in the tangential direction to form a vortex, and finally flow into the bottom of the mixing barrel 110 in the form of a vortex, which has the effect of initially mixing the water to be treated and the regulator, and further improves the mixing effect.

[0035] As an optional implementation, a spiral flow channel 111 is provided on the inner wall of the mixing barrel 110 , and the spiral flow channel 111 can guide the mixed liquid to better form a vortex, thereby improving the mixing effect.

[0036] As an optional embodiment, the infusion tube 210 is connected to a water pump 220, and the water pump 220 is connected to a water tank 230 through a water pipe. The water tank 230 is used to hold water to be treated. The infusion tube 210 is connected to a regulator adding mechanism 240 located between the water pump 220 and the mixing barrel 110, and the regulator adding mechanism 240 is used to add a regulator into the infusion tube 210.

[0037] In this embodiment, when the pH value of the water to be treated in the water tank 230 needs to be adjusted, the water to be treated is pumped to the infusion pipe 210 by the water pump 220, and at the same time, a regulator such as acid or alkali is added to the infusion pipe 210 by the regulator adding mechanism 240, so that the regulator is mixed into the water to be treated and transported to the mixing barrel 110 at the same time.

[0038] As an optional embodiment, the regulator adding mechanism 240 includes two liquid adding tubes 241 connected to the infusion tube 210, both of which are provided with a metering pump 242, and the two liquid adding tubes 241 are respectively connected to an acid tank 243 and an alkali tank 244.

[0039] In this embodiment, through the independent acid tank 243, alkali tank 244 and liquid adding pipe 241, corresponding doses of acid or alkali can be added through corresponding metering pumps 242 respectively, so as to avoid the acid and alkali using the same pipeline to cause mutual neutralization and affect the accuracy of pH adjustment. At the same time, the dosage can be precisely controlled, thereby improving the accuracy of pH adjustment.

[0040] As an optional implementation, a first pH sensor 250 is disposed in the water tank 230 , the first pH sensor 250 is electrically connected to a PLC controller 260 , and both metering pumps 242 are electrically connected to the PLC controller 260 .

[0041] In this embodiment, the pH detection value of the water to be treated in the water tank 230 can be detected by the first pH sensor 250. According to the pH target value that needs to be adjusted, the PLC controller 260 can calculate the corresponding dosage of acid or alkali solution according to the difference between the pH target value and the pH detection value, thereby separately controlling the opening of the corresponding metering pump 242 to add the corresponding dosage of acid or alkali solution, thereby realizing automatic addition control of acid or alkali solution with high accuracy. It should be noted that the model of the PLC controller 260 can be S7-200.

[0042] As an optional embodiment, a second pH sensor 270 electrically connected to the PLC controller 260 is provided in the liquid storage tank 140, and the liquid storage tank 140 is connected to a reflux mechanism 280, and the other end of the reflux mechanism 280 is connected to the infusion tube 210, and the reflux mechanism 280 is used to transport the liquid in the liquid storage tank 140 to the infusion tube 210.

[0043] In this embodiment, the second pH sensor 270 can detect the pH value of the liquid in the liquid storage tank 140. If it is significantly different from the pH target value, the liquid in the liquid storage tank 140 can be re-transported to the infusion tube 210 through the reflux mechanism 280, and the corresponding dose of acid or alkali solution can be added again to ensure the accuracy of pH adjustment. The entire process can be automatically controlled and operated by the PLC controller 260 without the need for manual management, and has a high degree of automation.

[0044] As an optional embodiment, the reflux mechanism 280 includes a reflux pump 281 connected to the liquid storage tank 140, the reflux pump 281 is connected to a reflux pipe 282, the reflux pipe 282 is connected to a first solenoid valve 283, the first solenoid valve 283 is connected to the infusion tube 210 at a position between the water pump 220 and the liquid adding tube 241, and the first solenoid valve 283 and the reflux pump 281 are both electrically connected to the PLC controller 260.

[0045] In this embodiment, when reflux is required, the first solenoid valve 283 is opened (the water pump 220 is not working at this time), and the reflux pump 281 is started to pump the liquid in the liquid storage tank 140 to the reflux pipe 282, and finally flows into the infusion tube 210 to achieve the reflux effect.

[0046] As an optional embodiment, the liquid storage tank 140 is connected to a second solenoid valve 290, and the second solenoid valve 290 is connected to a liquid outlet pipe 310. When the liquid in the liquid storage tank 140 meets the pH target value, the second solenoid valve 290 is opened to discharge the liquid through the liquid outlet pipe 310 for use or for the next processing step.

[0047] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A pH automatic adjustment device, characterized in that: It includes a mixing drum, which is used to mix the water to be treated and the regulator. The bottom of the mixing drum is connected to a vertical pipe, the bottom of the vertical pipe is vertically connected to a horizontal pipe, the horizontal pipe is connected to a liquid storage tank, a water wheel is arranged in the vertical pipe, the axis of the water wheel is a horizontal line and deviates from the axis of the vertical pipe, one side of the water wheel is connected to a transmission mechanism that movably passes through the side wall of the vertical pipe, the transmission mechanism is connected to a first rotating shaft, a section of the first rotating shaft movably extends into the horizontal pipe, the first rotating shaft is provided with a plurality of stirring blades located in the horizontal pipe, and the horizontal pipe is provided with a first waterproof bearing that cooperates with the first rotating shaft.

2. The automatic pH adjustment device according to claim 1, characterized in that: The transmission mechanism includes a second rotating shaft connected to one side of the water wheel, the second rotating shaft movably passes through the side wall of the vertical pipe and is connected to a driving bevel gear, the side wall of the vertical pipe is provided with a second waterproof bearing that cooperates with the second rotating shaft, the driving bevel gear is meshedly connected to a driven bevel gear, and the driven bevel gear is connected to the top of the first rotating shaft.

3. A pH automatic adjusting device as claimed in claim 1 or 2, characterized in that: The mixing cylinder is a conical cylinder, and a liquid infusion tube is connected to the tangent position of the side wall of the mixing cylinder. The liquid infusion tube is used to transport the water to be treated and the regulator.

4. A pH automatic adjustment device as claimed in claim 3, characterized in that: The inner wall of the mixing cylinder is provided with a spiral flow channel.

5. The automatic pH adjustment device according to claim 3, characterized in that: The infusion tube is connected to a water pump, and the water pump is connected to a water tank through a water pipe. The water tank is used to hold water to be treated. The infusion tube is connected to a regulator adding mechanism located between the water pump and the mixing cylinder, and the regulator adding mechanism is used to add a regulator into the infusion tube.

6. The automatic pH adjustment device according to claim 5, characterized in that: The regulator adding mechanism comprises two liquid adding tubes connected with the infusion tube, both of which are provided with metering pumps, and the two liquid adding tubes are respectively connected with an acid tank and an alkali tank.

7. The automatic pH adjustment device according to claim 6, characterized in that: A first pH sensor is arranged in the water tank, the first pH sensor is electrically connected to a PLC controller, and both of the metering pumps are electrically connected to the PLC controller.

8. The automatic pH adjustment device according to claim 7, characterized in that: The liquid storage tank is provided with a second pH sensor electrically connected to the PLC controller. The liquid storage tank is connected to a reflux mechanism, the other end of which is connected to the infusion tube. The reflux mechanism is used to transport the liquid in the liquid storage tank to the infusion tube.

9. The automatic pH adjustment device according to claim 8, characterized in that: The reflux mechanism includes a reflux pump connected to the liquid storage tank, the reflux pump is connected to a reflux pipe, the reflux pipe is connected to a first solenoid valve, the first solenoid valve is connected to the infusion pipe at a position between the water pump and the liquid adding pipe, and the first solenoid valve and the reflux pump are both electrically connected to the PLC controller.

10. The automatic pH adjustment device according to claim 1, characterized in that: The liquid storage tank is connected to a second solenoid valve, and the second solenoid valve is connected to a liquid outlet pipe.

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