CN214703507U

CN214703507U - PH flow-through cell

Info

Publication number: CN214703507U
Application number: CN202120571111.3U
Authority: CN
Inventors: 郭永超
Original assignee: Anheng Environmental Technology Beijing Co ltd
Current assignee: Anheng Environmental Technology Beijing Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-11-12
Anticipated expiration: 2031-03-19

Abstract

The utility model relates to the technical field of pH flow-through cells, in particular to a pH flow-through cell, which comprises a first flow-through cell cavity and a second flow-through cell cavity, wherein the end part of the first flow-through cell cavity is provided with a first interface, the end part of the second flow-through cell cavity is provided with a second interface, one side of the second interface is provided with an air vent on the end surface of the second flow-through cell cavity, the bottom of the first flow-through cell cavity is provided with a first water outlet, the bottom of the second flow-through cell cavity is provided with a second water outlet, one side wall of the first flow-through cell cavity is provided with a flow-through cell water inlet close to the first water outlet, one side wall of the second flow-through cell cavity is provided with an overflow port close to the second interface, the utility model designs a water sample pH flow-through cell, which can make the flow-through special volume and special structure have the function of facilitating the calibration and calibration of a sensor, and the pH value is relatively more accurate due to the normal pressure characteristic of the flow cell.

Description

PH flow-through cell

Technical Field

The utility model relates to a pH flow-through cell technical field specifically is a pH flow-through cell.

Background

The current pH flow-through cell mainly accomplishes the function of passing through of water sample, namely accomplishes the soaking function of intaking and play water, pH sensor promptly, and all there is the shortcoming in pH sensor first installation and later stage operation, specifically as follows:

in the initial installation, in the installation and actual maintenance of the pH sensor, the initial installation of the sensor generally needs calibration and 1-2-point calibration, and 1-2 500mL volumetric flasks or 250mL volumetric flasks are needed to dilute a pH standard solution or a pH standard powder bag, but the installation occasions of the sensor generally include newly-built places such as a water works, a sewage plant and a pump station, corresponding experimental devices are lacked, installation and debugging personnel generally go on the spot, are not convenient to carry vessels such as volumetric flasks, and the site purchase needs to search for laboratory equipment stores or companies, so that the installation is very inconvenient.

The first installation, sensor flow-through cell before generally be seal structure, and the water inlet directly links the delivery port, has certain pressure, and water pressure is relevant with the pressure of intaking, and water pressure fluctuation influences oozing of pH sensor electrolyte, can influence the accuracy of pH measured value.

During later operation, calibration and verification of the accuracy of the sensor are often required. The pH is an index to be detected on site, and a water sample needs to be taken out and placed in a container (such as a beaker) carried by a checker, and then a small-sized pH sensor of the portable pH detection device is placed in the container to be calibrated for on-site measurement. And if on-site maintenance personnel temporarily receive the maintenance task, containers such as beakers are not carried, so that the maintenance is inconvenient and rapid.

To sum up, the utility model discloses a design a pH flow-through cell and solve the problem that exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pH flow-through cell to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a pH flow cell comprises a flow cell cavity I and a flow cell cavity II, wherein a first interface is arranged at the end part of the flow cell cavity I, a second interface is arranged at the end part of the second flow cell cavity, a vent hole is arranged on one side of the second interface and positioned on the end surface of the second flow cell cavity, a first water outlet is arranged at the bottom of the first flow cell cavity, a second water outlet is arranged at the bottom of the second flow cell cavity, a flow cell water inlet is arranged on one side wall of the first flow cell cavity and close to the first water outlet, an overflow port is arranged on one side wall of the second flow cell cavity and close to the second interface, the second flow cell cavity is fixedly connected to the side wall of the first flow cell cavity, an L-shaped water baffle is arranged inside the second flow cell cavity and close to the top of the second flow cell cavity, and a water through hole is formed at the joint of the second flow cell cavity and the first flow cell cavity and corresponds to the L-shaped water baffle.

As the utility model discloses preferred scheme, all be provided with marking and marking description 250mL word on flow cell cavity one and the flow cell cavity two, install the pH sensor on the second interface, flow cell cavity one and flow cell cavity two adopt transparent ya keli material to make and form.

As the utility model discloses preferred scheme, first interface, first drain and circulation pond water inlet are the connectivity structure with circulation pond cavity one respectively, second interface, air vent, second outlet and overflow mouth are the connectivity structure with circulation pond cavity two respectively, the air vent is the connectivity structure with circulation pond cavity one and circulation pond cavity two respectively.

As the utility model discloses preferred scheme, be connected with ball valve or angle valve one of them on first drain port, air vent, second outlet and the overflow mouth respectively, first interface, first drain port all adopt the interior screw adapter of anti-tooth.

As the utility model discloses preferred scheme, being located the below one-third of a circulation pond cavity left side wall of circulation pond water inlet, the overflow mouth is located the more than two-thirds of two right side walls of circulation pond cavity, the bore of circulation pond water inlet is less than the overflow mouth.

As the utility model discloses preferred scheme, the lower extreme of L type breakwater is located the position of the one-third of two lateral walls of flow cell cavity or below, the diameter of air vent is below 6mm more than 3mm, flow cell cavity one and two lower extremes of flow cell cavity are triangle-shaped or circular cone.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, provide the container of taking the marking line for the scene through the design for installation and debugging personnel and operation maintenance personnel, comparison check personnel need not to carry the calibration container, only carry calibration and can accomplish the calibration or the check-up of pH sensor with the powder package.

2. The utility model discloses in, through the structure of designing two cavities for the sensor measurement part is not directly restarted to the rivers of intaking, reduces the impact to the sensor, does benefit to the life of extension sensor and the structure of two cavities, makes deposit in the water sample at flow-through pond cavity one, does not influence pH sensor direct contact part, and has the valve, and maintainer opens the release that first drain can accomplish the deposit.

3. In the utility model, the water flow is directly observed by designing the first cavity of the flow cell to adopt a transparent structure, so that the water inlet pressure is convenient to adjust; the sealing cover of the chamber can be closed after the water flow is adjusted;

4. the utility model discloses in, there is the air vent through two upper portions of design flow cell cavity, directly links with the atmosphere for two internal pressures of flow cell cavity at pH sensor place are stable basically, thereby make the water pressure that the sensor was located stable basically, thereby guarantee as far as possible that the interior electrolyte of pH sensor receives hydraulic stability, just also can guarantee the validity of pH sensor measured value.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic cross-sectional view of fig. 1 according to the present invention.

In the figure: 1. a first flow cell cavity; 2. a second flow cell cavity; 3. a first interface; 4. a second interface; 5. a vent hole; 6. a first drain port; 7. a second water discharge port; 8. a water inlet of the flow-through cell; 9. an overflow port; 10. an L-shaped water baffle; 11. a water hole.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.

In order to facilitate understanding of the invention, a number of embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which, however, the invention may be embodied in many different forms and is not limited to the embodiments described herein, but rather these embodiments are provided so as to render the disclosure more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, and that the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a pH flow-through cell, including flow-through cell cavity one 1 and flow-through cell cavity two 2, the tip of flow-through cell cavity one 1 sets up first interface 3, the tip of flow-through cell cavity two 2 is provided with second interface 4, one side of second interface 4 is and be located and be provided with air vent 5 on the terminal surface of flow-through cell cavity two 2, the bottom of flow-through cell cavity one 1 is provided with first drain 6, the bottom of flow-through cell cavity two 2 is provided with second outlet 7, be provided with flow-through cell water inlet 8 on the lateral wall of flow-through cell cavity one 1 and near first drain 6, be provided with overflow mouth 9 on the lateral wall of flow-through cell cavity two 2 and near second interface 4, flow-through cell cavity two 2 fixed connection is on the lateral wall of flow-through cell cavity one 1, the inside of flow-through cell cavity two 2 is provided with L type breakwater 10 and correspond with L type breakwater inlet 10 and seted up the limbers in the junction of flow-through cell cavity one 2 and flow-through cell cavity one 1 11.

In the embodiment, referring to fig. 1, a mark line and a mark line description 250mL character are respectively arranged on a first flow cell cavity 1 and a second flow cell cavity 2, a pH sensor is arranged on a second interface 4, and the first flow cell cavity 1 and the second flow cell cavity 2 are made of transparent acrylic materials, so that the flow cell is easier to process and more convenient to observe;

in an embodiment, referring to fig. 2, the first port 3, the first drain port 6 and the flow cell inlet 8 are respectively in communication with the first flow cell cavity 1, the second port 4, the vent hole 5, the second drain port 7 and the overflow port 9 are respectively in communication with the second flow cell cavity 2, and the vent hole 11 is respectively in communication with the first flow cell cavity 1 and the second flow cell cavity 2.

In the embodiment, referring to fig. 1 and 2, a ball valve or an angle valve is connected to each of the first drain port 6, the vent hole 5, the second drain port 7 and the overflow port 9, and the first connector 3 and the first drain port 6 both adopt reverse-tooth internal and external screw adapters, which have the function of solving the problem that the threads on the conventional flow cell are not used and are used instead of the threads on the flow cell, but the direct threads are inconvenient for disassembling the sensor and need to unscrew the sensor for one circle, but the sensor is generally wired, so that the sensor wires are easy to hinge together, and therefore the first connector 3 and the first drain port 6 are reverse-tooth internal and external screw adapters, and the flow cell can be disassembled only by unscrewing the connectors without screwing the sensor;

in an embodiment, referring to fig. 1 and fig. 2, a water inlet 8 of a flow cell is located below one third of a left side wall of a first flow cell cavity 1, an overflow port 9 is located above two thirds of a right side wall of a second flow cell cavity 2, and a caliber of the water inlet 8 of the flow cell is smaller than that of the overflow port 9, so that water is smoothly drained and water cannot be held back; the lower extreme of L type breakwater 10 is located the position of the one-third of two 2 lateral walls of flow cell cavity or below, its effect lies in, avoid cavity 2 full water time new water inflow appearance direct overflow to walk, it all is new water to guarantee the sensor contact, the diameter of air vent 5 is more than 3mm below 6mm, flow cell cavity one 1 and two 2 lower extremes of flow cell cavity are triangle-shaped or circular cone, its effect lies in, be convenient for with the powder mixing of putting into, also be convenient for discharge deposit or original water sample clean when opening the drain valve.

The utility model discloses work flow: when the pH value is in normal operation, the technology is only used as a flow cell, the vent hole 5 is not sealed and is used for communicating the atmosphere, the water inlet 8 and the overflow port 9 of the flow cell are in an open state, and the first water outlet 6 and the second water outlet 7 are in a closed state and are used as a flow channel of a water sample;

during calibration and verification, the first flow cell cavity 1 and the second flow cell cavity 2 can be used for placing a pH standard product powder bag for calibration during calibration;

if one point is calibrated or verified, the water sample can be filled into the 250mL mark line of the second 2 of the cavity of the flow cell.

If two-point calibration or verification is carried out, firstly, a water sample can be filled into 250mL of marked lines of the second cavity 2 of the flow cell, the water inlet 8 of the flow cell is closed, and the second cavity 2 of the buffer solution flow cell is prepared; and opening the first drainage port 6 again, reducing the liquid level of the water sample to a marked line of 250mL, adding a buffer solution powder bag as another buffer solution for calibration or verification, wherein the process achieves the following effects:

1) a container with a marked line is provided for the field, so that the calibration or the verification of the pH sensor can be completed by installing and debugging personnel, operating and maintaining personnel and comparison and verification personnel without carrying a scale container and only carrying a calibration powder bag;

2) due to the structure of the two cavities, the measuring part of the sensor is not directly restarted by the inflow water flow, so that the impact on the sensor is reduced, and the service life of the sensor is prolonged;

3) the structure of the two chambers ensures that sediments in a water sample are deposited in the first flow-through tank cavity 1, the direct contact part of the pH sensor is not influenced, and a valve is arranged, so that maintenance personnel can complete the release of the sediments by opening the first drainage port 6;

4) the flow cell cavity I1 adopts a transparent structure to directly observe the size of water flow, so that the water inlet pressure can be conveniently adjusted; the sealing cover of the chamber 1 can be closed after the water flow is adjusted;

5) the upper part of the second cavity 2 of the flow cell is provided with a vent hole which is directly connected with the atmosphere, so that the pressure in the second cavity 2 of the flow cell where the pH sensor is positioned is basically stable, the water pressure of the sensor is basically stable, the stability of the water pressure borne by electrolyte in the pH sensor is ensured as much as possible, and the effectiveness of the measured value of the pH sensor can be ensured,

although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pH flow-through cell, includes flow-through cell cavity one (1) and flow-through cell cavity two (2), its characterized in that: the utility model discloses a flow cell, including flow cell cavity (1), flow cell cavity (2), vent hole (5), first drain outlet (6), second drain outlet (7), flow cell cavity (2), overflow port (9), flow cell cavity (2) and first drain outlet (2), the tip of flow cell cavity (1) sets up first interface (3), the tip of flow cell cavity (2) is provided with second interface (4), one side of second interface (4) is and be located and be provided with air vent (5) on the terminal surface of flow cell cavity (2), the bottom of flow cell cavity (1) is provided with first drain outlet (6), be provided with flow cell water inlet (8) on the lateral wall of flow cell cavity (2) and near second interface (4), flow cell cavity (2) fixed connection is on the lateral wall of flow cell cavity (1), the inside of flow cell cavity (2) and the top that is close to flow cell cavity (2) are provided with L type breakwater (10) And a water through hole (11) is formed at the joint of the second flow cell cavity (2) and the first flow cell cavity (1) and corresponds to the L-shaped water baffle (10).

2. A pH flow cell according to claim 1, wherein: all be provided with marking and marking description 250mL word on flow cell cavity one (1) and flow cell cavity two (2), install the pH sensor on second interface (4), flow cell cavity one (1) and flow cell cavity two (2) adopt transparent ya keli material to make and form.

3. A pH flow cell according to claim 1, wherein: the first connector (3), the first drainage port (6) and the flow cell water inlet (8) are respectively communicated with the first flow cell cavity (1), the second connector (4), the vent hole (5), the second drainage port (7) and the overflow port (9) are respectively communicated with the second flow cell cavity (2), and the vent hole (11) is respectively communicated with the first flow cell cavity (1) and the second flow cell cavity (2).

4. A pH flow cell according to claim 3, wherein: the first water discharge port (6), the vent hole (5), the second water discharge port (7) and the overflow port (9) are respectively connected with one of a ball valve and an angle valve, and the first connector (3) and the first water discharge port (6) are respectively provided with an anti-tooth inner and outer screw adapter.

5. A pH flow cell according to claim 1, wherein: the flow cell is characterized in that the position of the flow cell water inlet (8) is less than one third of the left side wall of the flow cell cavity I (1), the overflow port (9) is located more than two thirds of the right side wall of the flow cell cavity II (2), and the caliber of the flow cell water inlet (8) is smaller than the overflow port (9).

6. A pH flow cell according to claim 1, wherein: the lower end of the L-shaped water baffle (10) is positioned at or below one third of the side wall of the second flow cell cavity (2), the diameter of the vent hole (5) is more than 3mm and less than 6mm, and the lower ends of the first flow cell cavity (1) and the second flow cell cavity (2) are triangular or conical.