CN217278311U

CN217278311U - Water quality analyzer metering device

Info

Publication number: CN217278311U
Application number: CN202220772677.7U
Authority: CN
Inventors: 王立田; 郑应俊
Original assignee: Anhui Wanyi Science and Technology Co Ltd
Current assignee: Anhui Wanyi Science and Technology Co Ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-08-23
Anticipated expiration: 2032-04-01

Abstract

The utility model provides a water quality analyzer metering device, which comprises a metering frame, a metering pipe, an upper liquid level detector, a lower liquid level detector, a multi-way valve, an upper channel, a reaction tank, a reagent delivery pipe and a solenoid valve, wherein the metering pipe is arranged at the middle position inside the metering frame through a gland nut, the liquid inside the metering pipe is powered by a power device, the upper liquid level detector is arranged at the upper part of the metering frame, the lower liquid level detector is arranged at the lower part of the metering frame, the multi-way valve is arranged at the bottom of the metering frame, one end of the upper channel is connected with the metering pipe through an interface, the other end of the upper channel is communicated with the multi-way valve through a multi-way valve connecting pipe, the upper channel is connected with the reaction tank through the reagent delivery pipe, and the solenoid valve is arranged on the reagent delivery pipe, the utility model can reduce the metering error caused by the change of the diameter of a liquid inlet pipe in the metering mode, the precision of the metering method of the metering tube is obviously improved.

Description

Water quality analyzer metering device

Technical Field

One or more embodiments of the present description relate to the field of water quality analysis, in particular to a water quality analyzer metering device.

Background

The water quality analysis is closely related to the life of people, and the online water quality monitor is used for online monitoring of a pollution source and surface water, so that people can more clearly recognize the water quality change of the pollution source and the surface water, the accuracy of the online water quality monitor is very important, and the metering precision is the key for the online water quality monitor to accurately analyze the result.

At present, most quality of water on-line monitoring appearance all adopt the mode of measurement pipe to measure, because measurement pipe diameter is different with the connecting pipe diameter of being connected the reaction tank and the contained angle appears, at the in-process that shifts the intraductal liquid of measurement to the reaction tank, because the surface tension effect of liquid, be difficult to avoid can appearing liquid remaining phenomenon in the place of above-mentioned contained angle, lead to the liquid that the measurement is accurate can not be complete to shift to the reaction tank, cause the error of analysis result, to sum up, this application now provides a quality of water analysis accurate metering device and solves the problem that the aforesaid appears.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of one or more embodiments of the present disclosure is to provide a water quality analyzer metering device to solve the problems in the background art.

Based on the above purpose, one or more embodiments of the present specification provide a water quality analyzer metering device, which includes a metering frame, a metering tube, an upper liquid level detector, a lower liquid level detector, a multi-way valve, an upper channel, a reaction tank, a reagent delivery tube and an electromagnetic valve, wherein the metering tube is installed at a middle position inside the metering frame through a compression nut, liquid inside the metering tube is powered by a power device, the upper liquid level detector is arranged at an upper portion of the metering frame, the lower liquid level detector is arranged at a lower portion of the metering frame, the upper liquid level detector and the lower liquid level detector are used for metering the volume of each liquid inlet, the multi-way valve is arranged at the bottom of the metering frame, one end of the upper channel is connected with the metering tube through a port, the other end of the upper channel is communicated with the multi-way valve through a multi-way valve connecting tube, the upper channel is connected with the reaction tank through the reagent delivery tube, the electromagnetic valve is arranged on the reagent delivery pipe.

Preferably, the top of the metering frame is provided with a threaded groove matched with the compression nut, and the bottom of the metering frame is provided with an installation groove matched with the multi-way valve.

Preferably, the inner diameter of the upper channel is adapted to the inner diameter of the metering tube.

Preferably, the reagent delivery tube is in communication with an intermediate location of the upper channel.

Preferably, the power device is a peristaltic pump or a metering pump, and the power device provides power for transferring the reagent inside the equipment.

Preferably, the compression nut is made of polytetrafluoroethylene.

Preferably, the metering tube is a quartz round tube or a fat quartz round tube.

From the above, the utility model has the advantages that: the utility model discloses can reduce the metering error that metering tube metering mode leads to because the feed liquor pipe diameter changes, show the precision that improves metering tube metering method.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a partial structural schematic diagram of a conventional metering tube.

In the reference symbols: 1. a power plant; 2. a compression nut; 3. a metrology frame; 4. a metering tube; 5. an upper liquid level detector; 6. a lower liquid level detector; 7. a multi-way valve; 8. a reaction tank; 9. an interface; 10. an upper channel; 11. a multi-way valve connecting pipe; 12. a reagent delivery tube; 13. a first included angle is formed; 14. and a second included angle.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.

It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Examples

Referring to fig. 1-2, a water quality analyzer metering device includes a metering frame 3, a metering tube 4, an upper liquid level detector 5, a lower liquid level detector 6, a multi-way valve 7, an upper channel 10, a reaction tank 8, a reagent delivery tube 12 and an electromagnetic valve, wherein the metering tube 4 is installed at a middle position inside the metering frame 3 through a gland nut 2, the liquid inside the metering tube 4 is powered by a power device 1, the upper liquid level detector 5 is arranged at the upper part of the metering frame 3, the lower liquid level detector 6 is arranged at the lower part of the metering frame 3, the upper liquid level detector 5 and the lower liquid level detector 6 are used for measuring the volume of each liquid inlet amount, and the upper liquid level detector 5 and the lower liquid level detector 6 are preferably double and can be symmetrically arranged inside the metering frame 3 to enable the liquid level detection to be more accurate, the multi-way valve 7 is arranged at the bottom of the metering frame 3, the one end of upper portion passageway 10 is passed through interface 9 and is connected with measuring pipe 4, and the other end of upper portion passageway 10 passes through multi-way valve connecting pipe 11 and 7 intercommunications with the multi-way valve, upper portion passageway 10 is connected with reaction tank 8 through reagent contact tube 12, the solenoid valve sets up on reagent contact tube 12, the utility model discloses can reduce measuring pipe 4 metering mode because the feed liquor pipe diameter changes the measuring error that leads to, show the precision that improves measuring pipe 4 metering method.

As an improvement of the scheme, the top of the metering frame 3 is provided with a threaded groove matched with the compression nut 2 and used for fixing the compression nut 2, and the bottom of the metering frame 3 is provided with an installation groove matched with the multi-way valve 7 and used for fixing the multi-way valve 7.

As a modified scheme of the scheme, the inner diameter of the upper passage 10 is matched with the inner diameter of the measuring pipe 4, the upper passage 10 and the measuring pipe 4 with the same inner diameter are preferably arranged, the diversion dead angle is eliminated, and the measuring error is reduced.

As a modification of the above, the reagent delivery pipe 12 communicates with an intermediate position of the upper passage 10.

As a modification of the scheme, the power device 1 is a peristaltic pump or a metering pump, and the power device 1 provides power for reagent transfer inside the device.

As an improvement of the scheme, the compression nut 2 is made of polytetrafluoroethylene.

As an improvement of the scheme, the metering tube 4 is a quartz round tube or a fat quartz round tube.

The working process is as follows: when measuring liquid, one of the valves of the multi-way valve 7 is opened, the power device 1 is utilized, the multi-way valve can be a peristaltic pump or a metering pump, the liquid is pumped to the metering pipe 4, at the moment, the upper channel 10 is filled with the metered liquid, the metering is carried out by matching the upper liquid level detector 5 and the lower liquid level detector 6, after the metering is completed, the inlet of the multi-way valve 7 is closed, the electromagnetic valve is opened, the liquid above the reagent delivery pipe 12 to the metering liquid level is transferred to the reaction tank 8, the metering mode can transfer all the metered liquid to the reaction tank 8, and the liquid residue phenomenon cannot occur.

It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit or scope of the disclosure are intended to be included within the scope of the disclosure.

Claims

1. A water quality analyzer metering device is characterized by comprising:

a metrology frame (3);

the metering pipe (4) is installed at the middle position inside the metering frame (3) through the compression nut (2), and liquid inside the metering pipe (4) is powered by the power device (1);

the liquid level measuring device comprises an upper liquid level detector (5) and a lower liquid level detector (6), wherein the upper liquid level detector (5) is arranged at the upper part of a metering frame (3), and the lower liquid level detector (6) is arranged at the lower part of the metering frame (3);

the multi-way valve (7), the said multi-way valve (7) is set up in the bottom of the metering frame (3);

one end of the upper channel (10) is connected with the metering pipe (4) through a connector (9), and the other end of the upper channel (10) is communicated with the multi-way valve (7) through a multi-way valve connecting pipe (11);

a reaction tank (8);

the upper channel (10) is connected with the reaction tank (8) through the reagent delivery pipe (12); and

an electromagnetic valve, which is arranged on the reagent delivery pipe (12).

2. A water quality analyzer metering device according to claim 1, wherein a threaded groove matched with the compression nut (2) is formed in the top of the metering frame (3), and a mounting groove matched with the multi-way valve (7) is formed in the bottom of the metering frame (3).

3. A water quality analyser metering device according to claim 1 wherein the inner diameter of the upper passage (10) is adapted to the inner diameter of the metering tube (4).

4. A water quality analyzer metering device according to claim 1, wherein the reagent delivery pipe (12) communicates with an intermediate position of the upper passage (10).

5. A water quality analyser metering device according to claim 1 wherein the power means (1) is a peristaltic pump or a metering pump.