CN218782228U

CN218782228U - Automatic PH electrode washing and calibrating device

Info

Publication number: CN218782228U
Application number: CN202222188561.1U
Authority: CN
Inventors: 周敏
Original assignee: Guangdong Hongrui Energy Technology Co ltd
Current assignee: Guangdong Hongrui Energy Technology Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2023-03-31
Anticipated expiration: 2032-08-18

Abstract

The utility model relates to a PH value measurement field of magma mixed liquid provides a PH electrode automatic washing, calibration device, the buffer tank that is provided with in the pipeline of magma mixed liquid, utilize first motorised valve to fifth motorised valve to realize the mechanized isolation control to PH electrode and magma mixed liquid, set up at the top of buffer tank simultaneously and wash the subassembly and insert tap water and high-purity water inlet pipeline, realize the automation of running water, high-purity water and introduce, the emission subassembly of cooperation bottom can carry out automatic washing, calibration in the buffer tank, realize that sealed automatic washing PH electrode and mark liquid automatic configuration, automatic calibration PH electrode; the jar body is airtight, need not to remove the PH electrode to avoided near the excessive corrosion equipment of mark liquid, reduced the operation degree of difficulty height, improved detection efficiency.

Description

Automatic PH electrode washing and calibrating device

Technical Field

The utility model relates to a pH value of magma mixed liquid measures technical field, especially relates to a PH electrode is automatic to be washed, calibration device.

Background

The PH value of the corrosive crystal slurry mixed liquid is measured often because of the particularity of the medium, if the PH electrode is washed irregularly, the crystal slurry mixed liquid can be gradually adhered to and block the electrode, the service life of the PH electrode is influenced, in addition, in order to ensure the accuracy of electrode measurement, the electrode is generally washed and calibrated once every month, and whether the frequency needs to be increased or decreased can be judged according to a calibration result. Such as zero drift, a new zero and slope is obtained after each calibration.

The conventional method for automatically and periodically cleaning the PH electrode is to introduce water into a bulb port of a PH electrode sensitive membrane for periodic automatic cleaning, but the cleaning effect is not thorough because the cleaning is only carried out towards the bulb of the PH electrode sensitive membrane. In addition, when every month with the mark liquid mark PH electrode, need pull down the PH electrode from equipment, put the electrode again in the household utensils that contain the PH mark liquid after pulling down the back water sanitization, because the adnexed corrosive liquids of PH electrode often drips subaerial in this operation process, if ground is the steel grating, then can corrode the steel grating. In addition, the used standard liquid needs to be manually placed in a vessel, and the calibration is very inconvenient.

Disclosure of Invention

The utility model provides a PH electrode is automatic to be washed, calibration device has solved the technical problem that the operation degree of difficulty that current PH electrode self-cleaning, calibration process need dismantle the PH electrode and lead to is high, detection efficiency is low.

In order to solve the technical problem, the utility model provides an automatic PH electrode washing and calibrating device, which comprises a buffer tank, a PH electrode arranged in the buffer tank, a washing component, a calibrating component, a discharging component and a flow guide component, wherein the washing component, the calibrating component, the discharging component and the flow guide component are arranged on the buffer tank; the flow guide assemblies are assembled on two sides of the buffer tank, one end of each flow guide assembly guides the crystal slurry mixed liquid into the buffer tank, and the other end of each flow guide assembly guides the crystal slurry mixed liquid out of the buffer tank; the flushing assembly comprises a first flushing module and a second flushing module; the middle part of the top surface of the buffer tank is provided with a T-shaped guide pipe, the bottom of the T-shaped guide pipe is assembled with the discharge assembly, the bottom of the T-shaped guide pipe is communicated with the buffer tank, and inlets at two ends of the upper part of the T-shaped guide pipe are respectively communicated with the first washing module and the second washing module.

In a further embodiment, the first flushing module comprises a first electric valve, a first access pipe and a first check valve, one end of the first access pipe is connected with tap water, the other end of the first access pipe is connected with an inlet at one end of the T-shaped guide pipe and communicated with the buffer tank, and the first electric valve is installed between the first access pipe and the T-shaped guide pipe; the first check valve is installed between the first electric valve and the T-shaped conduit;

the second flushing module comprises a second electric valve, a second access pipeline and a second check valve, wherein one end of the second access pipeline is connected with high-purity water, the other end of the second access pipeline is connected with an inlet at the other end of the T-shaped guide pipe and communicated with the buffer tank, and the second electric valve is arranged between the second access pipeline and the T-shaped guide pipe; the second check valve is mounted between the second electrically operated valve and the T-shaped conduit.

In a further embodiment, the calibration component comprises a movable stirring rod and a dosing port which are arranged on the top surface of the buffer tank, the top of the movable stirring rod is a horizontally arranged limiting top cover, the middle part of the movable stirring rod is of a cylindrical structure, and the bottom of the movable stirring rod is of a disc-shaped stirring structure; wherein the upper part of the cylindrical structure is also provided with external threads; the dosing port comprises a threaded opening fixed on the top surface of the buffer tank and a threaded rotary cover installed in a matched mode, and the threaded opening is a connecting position which extends upwards to form a cylindrical shape and is externally provided with threads.

In a further embodiment, the drain assembly comprises a third electric valve and a first drain conduit, the first drain conduit being disposed at the lowest point of the bottom of the surge tank in communication with the surge tank, the third electric valve being mounted on the first drain conduit.

In a further embodiment, the flow directing assembly comprises a fourth electrically operated valve and a third access conduit; one end of the third access pipeline is connected with the crystal slurry mixed liquid, the other end of the third access pipeline is installed at the lower part of one side of the buffer tank and communicated with the buffer tank, and the fourth electric valve is installed on the third access pipeline;

the diversion assembly further comprises a fifth electric valve and a second discharge pipeline, one end of the second discharge pipeline is installed on the upper portion of the other side of the buffer tank and communicated with the buffer tank, the other end of the second discharge pipeline is used as a crystal slurry mixed liquid outlet, and the fifth electric valve is installed on the second discharge pipeline.

In a further embodiment, one side of the top of the buffer tank is provided with an installation block in threaded connection with the movable stirring rod and a through hole for installing the threaded opening, the middle part of the installation block penetrates through the through hole, and the inner side wall of the installation block is provided with an internal thread in threaded connection with the movable stirring rod; the other side is provided with a mounting hole for mounting the PH electrode, and the top of the PH electrode is fixed on the upper part and the middle lower part of the mounting hole to extend into the inner cavity of the buffer tank.

In a further embodiment, the buffer tank is of a cylindrical tank body structure, and calibration scale marks are arranged on the lower part of the side wall of the buffer tank and below the second discharge pipeline; the buffer tank is a transparent tank body made of PFA plastics.

In a further embodiment, the utility model discloses still include the controller, the controller with first motorised valve, second motorised valve, third motorised valve, fourth motorised valve, fifth motorised valve electric connection.

The utility model has the advantages as follows:

(1) A buffer tank with a PH electrode is arranged in a conveying pipeline of the crystal slurry mixed liquid, the mechanical isolation control of the PH electrode and the crystal slurry mixed liquid is realized by utilizing a first electric valve to a fifth electric valve, meanwhile, a flushing component is arranged at the top of the buffer tank and connected into a tap water inlet pipeline and a high-purity water inlet pipeline, so that the automatic introduction of the tap water and the high-purity water is realized, the automatic flushing and calibration can be carried out in the buffer tank by matching with a discharging component at the bottom, and the automatic configuration of the sealed automatic flushing PH electrode and the standard liquid and the automatic calibration of the PH electrode are realized; the tank body is closed, and a PH electrode does not need to be moved, so that the phenomenon that standard liquid overflows to corrode nearby equipment is avoided, the operation difficulty is reduced, and the detection efficiency is improved.

(2) The transparent tank body made of PFA plastic is used as a buffer tank, and the calibration scale marks are arranged on the tank body, so that the corrosion resistance and transparency of PFA materials can be realized, the injection amount of water when the PH electrode is washed and the calibration liquid is prepared can be visually observed, the detection and observation are facilitated, and the detection precision and the calibration precision are further improved.

(3) Set up the installation position that inserts the pipeline into the third and set up to be less than the second and discharge the pipeline, set up the installation position of second discharge pipeline on buffer tank upper portion and be higher than the demarcation scale mark for the crystal thick liquid that the velocity of flow is very fast gets into the buffer tank bottom and is reduced by the buffering velocity of flow, avoids the PH electrode to be damaged by the impact, can improve the accuracy of PH value test.

(4) Check valves are arranged on the first access pipeline and the second access pipeline, so that backflow caused by the fact that the buffer tank is full is effectively prevented from polluting a tap water system and a high-purity water system.

(5) The movable stirring rod of setting spiro union adds the medicine mouth for under the non-circumstances of adding medicine, movable stirring rod is in airtight state, and movable stirring rod is through the internal thread spiral shell of screwing with the installation piece, can accomplish the stirring action under the prerequisite of not opening the buffer tank, thereby it dissolves in high-purity water to accelerate PH buffer, in order to improve calibration efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an automatic PH electrode washing and calibrating device provided in an embodiment of the present invention;

fig. 2 is a top plan view of the buffer tank of fig. 1 provided by an embodiment of the present invention;

FIG. 3 is a schematic view of the movable stirring rod of FIG. 1 according to an embodiment of the present invention;

wherein: a buffer tank 1,T-shaped conduit 11 and an installation block 12; the flushing component 2 comprises a first electric valve 21, a first access pipeline 22, a first check valve 23, a second electric valve 24, a second access pipeline 25 and a second check valve 26; a calibration component 3, a movable stirring rod 31 and a dosing port 32; the discharge assembly 4, the third electric valve 41, the first discharge duct 42; the diversion assembly 5, a fourth electric valve 51, a third access pipeline 52, a fifth electric valve 53 and a second discharge pipeline 54; a PH electrode 6 and a controller 7.

Detailed Description

The following embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are given for illustrative purposes only and are not to be construed as limiting the invention, including the drawings, which are only used for reference and illustration, and do not constitute a limitation to the scope of the invention, since many changes may be made thereto without departing from the spirit and scope of the invention.

The embodiment of the utility model provides a PH electrode automatic flushing, calibration device, as shown in fig. 1-3, in this embodiment, including buffer tank 1 and PH electrode 6 installed in buffer tank 1, and install flushing component 2, calibration component 3, discharge component 4 and diversion component 5 on buffer tank 1; the flow guide assemblies 5 are assembled on two sides of the buffer tank 1, one end of each flow guide assembly guides the crystal slurry mixed liquid into the buffer tank 1, and the other end of each flow guide assembly guides the crystal slurry mixed liquid out of the buffer tank 1; the flushing assembly 2 comprises a first flushing module and a second flushing module; the middle part of the top surface of the buffer tank 1 is provided with a T-shaped conduit 11, the bottom of the T-shaped conduit is provided with a discharge assembly 4,T, the bottom of the T-shaped conduit 11 is communicated with the buffer tank 1, and inlets at two ends of the upper part of the T-shaped conduit are respectively communicated with the first washing module and the second washing module.

In this embodiment, the first flushing module includes a first electric valve 21, a first access pipe 22 and a first check valve 23, one end of the first access pipe 22 is connected to tap water, the other end is connected to an inlet at one end of the T-shaped conduit 11 and is communicated with the buffer tank 1, and the first electric valve 21 is installed between the first access pipe 22 and the T-shaped conduit 11; a first non-return valve 23 is mounted between the first electric valve 21 and the T-shaped duct 11;

the second flushing module comprises a second electric valve 24, a second access pipeline and a second check valve 26, wherein one end of the second access pipeline is connected with the high-purity water, the other end of the second access pipeline is connected with an inlet at the other end of the T-shaped guide pipe 11 and communicated with the buffer tank 1, and the second electric valve 24 is arranged between the second access pipeline and the T-shaped guide pipe 11; a second non-return valve 26 is mounted between the second electro valve 24 and the T-shaped duct 11.

In this embodiment, the calibration assembly 3 includes a movable stirring rod 31 and a dosing port 32 installed on the top surface of the buffer tank 1, the top of the movable stirring rod 31 is a horizontally arranged limit top cover, the middle part is a cylindrical structure, and the bottom is a disc-shaped stirring structure; wherein the upper part of the cylindrical structure is also provided with external threads; the dosing port 32 comprises a threaded opening fixed on the top surface of the buffer tank 1 and a threaded rotary cover installed in a matching manner, and the threaded opening extends upwards to form a cylindrical connecting position with external threads.

Preferably, the movable stirring rod 31 is made of PTFE material, the external thread on the upper part of the movable stirring rod 31 is NPT conical external thread, the NPT thread is standard 60-degree taper pipe thread, the NPT thread does not need to form sealing completely through the NPT thread under the condition of lubricant or filler, the NPT thread length is larger than the NPT conical internal thread and the wall thickness of the buffer tank 1, the NPT thread is downward of a non-threaded structure and a disc, and the disc thickness is about 2mm.

When the pH buffering agent is added into the prepared standard solution, the top cover of the movable stirring rod 31 is manually rotated to rotate anticlockwise, the disc at the bottom of the movable stirring rod 31 is driven to rotate, then the movable stirring rod is rotated clockwise to be screwed down, the disc at the bottom of the movable stirring rod 31 is also driven to rotate, and the pH buffering agent is accelerated to be dissolved in the high-purity water in the process.

In this embodiment, the discharge assembly 4 includes a third electric valve 41 and a first discharge pipe 42, the first discharge pipe 42 is disposed at the lowest point of the bottom of the buffer tank 1 and communicated with the buffer tank 1, and the third electric valve 41 is installed on the first discharge pipe 42.

In the present embodiment, the flow directing assembly 5 comprises a fourth electric valve 51 and a third access duct 52; one end of a third access pipeline 52 is accessed into the crystal slurry mixed solution, the other end of the third access pipeline is installed at the lower part of one side of the buffer tank 1 and is communicated with the buffer tank 1, and a fourth electric valve 51 is installed on the third access pipeline 52;

the diversion assembly 5 further comprises a fifth electric valve 53 and a second discharge pipe 54, one end of the second discharge pipe 54 is installed at the upper part of the other side of the buffer tank 1 and is communicated with the buffer tank 1, the other end of the second discharge pipe is used as a crystal slurry mixed liquid outlet, and the fifth electric valve 53 is installed on the second discharge pipe 54.

In this embodiment, one side of the top of the buffer tank 1 is provided with a mounting block 12 screwed with the movable stirring rod 31 and a through hole with a threaded opening, the middle part of the mounting block 12 penetrates through the through hole, and the inner side wall of the mounting block is provided with an internal thread screwed with the movable stirring rod 31; the other side is provided with a mounting hole for mounting the PH electrode 6, and the top of the PH electrode 6 is fixed on the upper part and the middle lower part of the mounting hole and extends into the inner cavity of the buffer tank 1.

In the embodiment, the buffer tank 1 is a cylindrical tank structure, and calibration scale marks are arranged on the lower part of the side wall and below the second discharge pipeline 54; the buffer tank 1 is a transparent tank body made of PFA plastic.

In this embodiment, the present invention further includes a controller 7, and the controller 7 is electrically connected to the first electrically operated valve 21, the second electrically operated valve 2424, the third electrically operated valve 41, the fourth electrically operated valve 51, and the fifth electrically operated valve 53. Wherein the controller 7 comprises any control element with an activation triggering function, such as a remote control or a host computer.

Preferably, the first electrically operated valve 21 to the fifth electrically operated valve 53 adopt electrically operated valves whose sealing grade is to meet the VI grade, the electrically operated valve body is made of PTFE (which can resist multiple corrosion conditions), and other materials meeting the requirements of the working conditions may be selected according to the working conditions.

The working principle of the utility model is as follows:

comprises automatic tap water flushing, automatic high-purity water flushing and dosing calibration (the arrow direction in the figure is the liquid flowing direction).

The tap water automatic flushing is specifically that the third electric valve 41 is started by the controller 7 to open the first discharge pipeline 42, and the crystal slurry mixed liquid in the buffer tank 1 is released; closing the second electric valve 24 to the fifth electric valve 53 (i.e. closing the second access pipeline, the first discharge pipeline 42, the third access pipeline 52 and the second discharge pipeline 54), starting the first electric valve 21 (i.e. opening the first access pipeline 22) to inject tap water into the buffer tank 1 for washing, and opening the first discharge pipeline 42 and the second discharge pipeline 54 for discharging after washing is completed, so that one or more times of washing is performed as required.

The automatic high-purity water flushing is specifically that the controller 7 starts the third electric valve 41 to open the first discharge pipeline 42, and the crystal slurry mixed liquid in the buffer tank 1 is discharged; the first electric valve 21, the third electric valve 41 to the fifth electric valve 53 are closed (i.e. the first access pipeline 22, the first discharge pipeline 42, the third access pipeline 52 and the second discharge pipeline 54 are closed), the second electric valve 24 is started (i.e. the second access pipeline is opened) to inject high-purity water into the buffer tank 1 for flushing, and after flushing is completed, the first discharge pipeline 42 and the second discharge pipeline 54 are opened for discharging, so that one or more times of flushing are performed as required.

The dosing calibration specifically comprises the steps that dosing operators confirm that water in the buffer tank 1 is discharged completely, when the first discharge pipeline 42 and the second discharge pipeline 54 are both in a closed state, the second electric valve 24 is started to inject high-purity water, only calibration scale marks are marked, the dosing port 32 is opened to add a PH buffering agent, the stirring is movable, the dissolution is accelerated, and finally the PH electrode 6 is calibrated according to the calibration and calibration operation procedures of PH analyzers of different manufacturers.

The embodiment of the utility model provides a beneficial effect as follows:

(1) The method comprises the following steps that a buffer tank 1 with a PH electrode 6 is arranged in a conveying pipeline of crystal slurry mixed liquid, mechanical isolation control of the PH electrode 6 and the crystal slurry mixed liquid is achieved through a first electric valve 21-a fifth electric valve 53, meanwhile, a washing component 2 is arranged at the top of the buffer tank 1 and connected into a tap water inlet pipeline and a high-purity water inlet pipeline, automatic introduction of the tap water and the high-purity water is achieved, automatic washing and calibration can be conducted in the buffer tank 1 by matching with a discharge component 4 at the bottom, and automatic configuration of the sealed automatic washing PH electrode 6 and a standard liquid and automatic calibration of the PH electrode 6 are achieved; the tank body is closed, and the PH electrode 6 does not need to be moved, so that the phenomenon that the standard solution overflows to corrode nearby equipment is avoided, the operation difficulty is reduced, and the detection efficiency is improved.

(2) The transparent tank body made of PFA plastic is used as the buffer tank 1, the calibration scale marks are arranged on the tank body, and the PFA material is corrosion-resistant and transparent, so that the injection amount of water when the PH electrode 6 is washed and provided with the calibration liquid can be visually observed, detection and observation are facilitated, and the detection precision and the calibration precision are improved.

(3) The installation position of the third access pipeline 52 is set to be lower than the second discharge pipeline 54, the installation position of the second discharge pipeline 54 is set on the upper part of the buffer tank 1 and is higher than the calibration scale mark, so that the magma mixed liquid with the fast flow rate enters the bottom of the buffer tank 1 and is reduced by the buffer flow rate, the PH electrode 6 is prevented from being damaged by impact, and the accuracy of the PH value test can be improved.

(4) Check valves are arranged on the first access pipeline 22 and the second access pipeline, so that backflow caused by the fact that the buffer tank 1 is full is effectively prevented from polluting a tap water system and a high-purity water system.

(5) The medicine adding port 32 of the movable stirring rod 31 is arranged in a screwed connection mode, under the condition that medicine is not added, the buffer tank 1 is in a closed state, the movable stirring rod 31 is screwed with the internal thread of the mounting block 12, stirring action can be completed on the premise that the buffer tank 1 is not opened, and therefore the PH buffer is dissolved in high-purity water at an accelerated speed, and calibration efficiency is improved.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. The utility model provides a PH electrode is automatic to be washed, calibration equipment which characterized in that: the device comprises a buffer tank, a PH electrode arranged in the buffer tank, and a flushing component, a calibration component, a discharge component and a flow guide component which are arranged on the buffer tank; the flow guide assemblies are assembled on two sides of the buffer tank, one end of each flow guide assembly guides the crystal slurry mixed liquid into the buffer tank, and the other end of each flow guide assembly guides the crystal slurry mixed liquid out of the buffer tank; the flushing assembly comprises a first flushing module and a second flushing module; the middle part of the top surface of the buffer tank is provided with a T-shaped guide pipe, the bottom of the T-shaped guide pipe is assembled with the discharge assembly, the bottom of the T-shaped guide pipe is communicated with the buffer tank, and inlets at two ends of the upper part of the T-shaped guide pipe are respectively communicated with the first washing module and the second washing module.

2. A PH electrode automatic rinsing and calibration device as defined in claim 1, wherein: the first flushing module comprises a first electric valve, a first access pipeline and a first check valve, wherein one end of the first access pipeline is connected with tap water, the other end of the first access pipeline is connected with an inlet at one end of the T-shaped guide pipe and communicated with the buffer tank, and the first electric valve is arranged between the first access pipeline and the T-shaped guide pipe; the first check valve is installed between the first electric valve and the T-shaped conduit;

3. The PH electrode automatic rinsing and calibrating device according to claim 2, wherein: the calibration assembly comprises a movable stirring rod and a medicine feeding port, the movable stirring rod is mounted on the top surface of the buffer tank, the top of the movable stirring rod is a horizontally arranged limiting top cover, the middle of the movable stirring rod is of a cylindrical structure, and the bottom of the movable stirring rod is of a disc-shaped stirring structure; wherein the upper part of the cylindrical structure is also provided with external threads; the dosing port comprises a threaded opening fixed on the top surface of the buffer tank and a threaded rotary cover installed in a matched mode, and the threaded opening is a connecting position which extends upwards to form a cylindrical shape and is externally provided with threads.

4. A PH electrode automatic rinsing and calibration device as defined in claim 3, wherein: the discharge assembly comprises a third electric valve and a first discharge pipeline, the first discharge pipeline is arranged at the lowest point of the bottom of the buffer tank and communicated with the buffer tank, and the third electric valve is installed on the first discharge pipeline.

5. A PH electrode automatic washing and calibrating device according to claim 4, wherein: the flow guide assembly comprises a fourth electric valve and a third access pipeline; one end of the third access pipeline is connected with the crystal slurry mixed solution, the other end of the third access pipeline is installed at the lower part of one side of the buffer tank and communicated with the buffer tank, and the fourth electric valve is installed on the third access pipeline;

6. A PH electrode automatic rinsing and calibrating device according to claim 3, wherein: one side of the top of the buffer tank is provided with an installation block in threaded connection with the movable stirring rod and a through hole for installing the threaded opening, the middle part of the installation block penetrates through the through hole, and the inner side wall of the installation block is provided with an internal thread in threaded connection with the movable stirring rod; the other side is provided with a mounting hole for mounting the PH electrode, and the top of the PH electrode is fixed on the upper part and the middle lower part of the mounting hole and extends into the inner cavity of the buffer tank.

7. An automatic PH electrode rinsing and calibration apparatus as defined in claim 6, wherein: the buffer tank is of a cylindrical tank body structure, and calibration scale marks are arranged on the lower portion of the side wall of the buffer tank and below the second discharge pipeline; the buffer tank is a transparent tank body made of PFA plastic.

8. A PH electrode automatic washing and calibrating device according to claim 5, wherein: the controller is electrically connected with the first electric valve, the second electric valve, the third electric valve, the fourth electric valve and the fifth electric valve.