CN210534048U - Calibrating device for aerator - Google Patents

Abstract

The utility model discloses an aerify appearance calibrating device, including water supply system, air supply system and aqueous vapor mixing system, water supply system with air supply system arranges separately aqueous vapor mixing system upper reaches. According to the utility model discloses an aerify appearance calibrating device, the accessible is adjusted air input and the standard aerification rivers that the inflow obtained different aerification concentrations, calibrates the aerification appearance, and maneuverability is strong, installs simple structure, easily arranges.

Description

Calibrating device for aerator

Technical Field

The utility model relates to an aerify appearance calibrating device.

Background

The electric conduction type aeration instrument is a common instrument for measuring the aeration concentration of high-speed water flow, and obtains the aeration quantity of the aerated water flow by measuring the resistance change before and after water flow aeration and processing the obtained electric signal by using a calculation module. After the conductance formula air entrainment appearance is used for a long time, the equipment can appear the use loss, in order to guarantee its measurement accuracy, need carry out the accent and normalize. However, the calibrating device of present air entrainment appearance still belongs to blank, the utility model provides an utilize standard air entrainment concentration rivers to carry out the device calibrated to the air entrainment appearance.

SUMMERY OF THE UTILITY MODEL

In order to examine the precision of the aeration instrument, the utility model provides an utilize standard aeration concentration rivers to carry out the device calibrated to the aeration instrument. The calibration device obtains the aeration water flow with standard aeration concentration by controlling the water inflow, the air inflow and the corresponding temperature and pressure and fully mixing in the device, and calibrates the value of the aeration concentration measured by the aeration instrument.

The purpose of the utility model is realized like this:

the calibration device for the aerator comprises a water supply system, a gas supply system and a water-gas mixing system, wherein the water supply system and the gas supply system are respectively arranged at the upstream of the water-gas mixing system.

Preferably, the water gas blending system comprises: the device comprises a water-gas contact section, a preliminary mixing section, a standard concentration section and an outlet section which are arranged from upstream to downstream in sequence. The water-gas contact section, the primary mixing section, the standard concentration section and the outlet section are sequentially hermetically connected into a closed whole.

Preferably, the water supply system comprises a water supply pipeline, and the water supply pipeline is internally provided with: a water pump for supplying water; a first valve controlling a flow rate of the supplied water; and a first flow meter that measures an amount of water intake. The water supply pipe is connected to the center of the water-gas admixture system at its upstream end.

Preferably, the air supply system comprises a main air supply conduit and one or more branch conduits branching from the main air supply conduit, the one or more branch conduits being connected to respective sides thereof at an upstream end of the water gas blending system. Set gradually in the air feed trunk line: an air compressor; a second valve that controls an intake air amount; and a second flow meter that measures an intake air amount.

Preferably, the air supply system includes an intake branch pipe branched from between the second valve of the main air supply pipe and the second flow meter, the intake branch pipe directly communicating with the atmosphere, and a third valve is provided in the intake branch pipe to control an amount of intake air.

Preferably, the aerator to be calibrated is arranged at said standard concentration section.

Preferably, the water-gas contact section is provided with a first temperature sensor and a first pressure sensor, and/or the standard concentration section is provided with a second temperature sensor and a second pressure sensor, and the arrangement considers that air is compressible gas, the volume of the air is greatly influenced by pressure and temperature, and the temperature and the pressure are monitored in real time, so that the scientific calculation of the air doping concentration of the standard concentration section is facilitated.

Preferably, the width of the downstream end of the preliminary blending section is 2 to 4 times the width of the water inlet at the upstream end of the water gas contacting section.

Preferably, the length of the standard concentration section is not less than 20 times of the width of the standard concentration section, so as to ensure sufficient mixing of water and gas.

Preferably, the water outlet width of the downstream end of the outlet section is not less than the water inlet width of the water-gas contacting section.

The standard concentration section is used for arranging the electrode of the electric conduction type aerator. Preferably, the electrode position of the aerator to be calibrated is no less than 5 times the width of the standard concentration section from the downstream end of the outlet section.

The utility model has the advantages that: the water flow with the standard aeration concentration is scientifically and accurately manufactured and used for detecting and calibrating the aerator. The method is a simple and direct air entrainment instrument calibration method; standard aeration water flows with different aeration concentrations can be obtained by adjusting air inflow and water inflow, and the operability is strong; the device has simple structure and is easy to arrange.

Drawings

Some example embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings; the present invention may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, the accompanying drawings, together with the description, illustrate some example embodiments of the invention and serve to explain the principles and aspects of the invention.

In the drawings, the size may be exaggerated for clarity of illustration. Like numbers refer to like elements throughout.

FIG. 1 is a schematic structural view of an apparatus for calibrating an aerator according to a first embodiment of the present invention;

FIG. 2 is a schematic structural view of an aerator calibrator according to a second embodiment of the present invention, showing an improved water-gas blending system;

fig. 3 is a plan view showing a third embodiment of the present invention, in which the connection between the gas supply system and the water-gas contact section is improved;

fig. 4 schematically shows a floor plan of a modified air supply system according to a fourth embodiment of the present invention.

Wherein:

a: a water vapor contact section; b: a preliminary blending section; c: a standard concentration section; d: an outlet section;

t: a temperature sensor; p: a pressure sensor; m: a flow meter;

1: a water pump; 2: a first valve; 3: a first flow meter; 4: an air compressor; 5: a second valve; 6: a second flow meter; 7: a first temperature sensor; 8: a first pressure sensor; 9: calibrating the aerator; 10: a second temperature sensor; 11: a second pressure sensor; 12: a third valve; 13: air intake

Detailed Description

In the following detailed description, certain exemplary embodiments of the present invention are shown and described, simply by way of illustration. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

Exemplary embodiments according to the present invention will be described in further detail below with reference to the accompanying drawings.

The first embodiment is as follows:

with reference to fig. 1, fig. 1 shows a schematic structure of an apparatus for calibrating an aerator according to the present invention. The calibration device of the aerator comprises three parts: the water supply system and the air supply system are respectively arranged at the upstream of the water-gas mixing system. Except necessary inlets and outlets, the water and gas mixing system is in a sealed state. The water-gas mixing system consists of a water-gas contact section A, a primary mixing section B, a standard concentration section C and an outlet section D which are sequentially arranged from upstream to downstream.

The water-gas contact section A and the standard concentration section C are respectively provided with a first temperature sensor 7, a second temperature sensor 10, a first pressure sensor 8 and a second pressure sensor 11, and the temperature and the pressure are monitored in real time; the standard concentration section C is used to install the aerator 9 which needs to be calibrated. In other examples, the temperature sensor T and the pressure sensor P may be provided only in the water gas contacting section a or the standard concentration section C. The method mainly considers that air is compressible gas, the volume of the air is greatly influenced by pressure and temperature, and the temperature and the pressure are monitored in real time, so that the method is favorable for scientifically calculating the aeration concentration of the concentration section C of the standard section, and a more accurate result can be obtained.

The water supply system controls and monitors the water inflow. The water supply system comprises a water supply pipeline, and the water supply pipeline is internally and sequentially provided with: a water pump 1 for supplying water, a first valve 2 for controlling the amount of inflow, and a flow meter M (i.e., a first flow meter 3) for measuring the amount of inflow, the water supply pipeline being connected to the center thereof at the upstream end of the water-gas mixing system, specifically, the water supply pipeline being connected to the water inlet at the center of the upstream end of the water-gas contacting section a.

The air supply system controls and monitors the amount of intake air. The air supply system comprises an air supply main pipeline, and a first branch pipe and a second branch pipe which are branched from the air supply main pipeline, wherein the first branch pipe and the second branch pipe are respectively connected with the air supply main pipeline through air inlets at the upstream end of the water-air mixing system, specifically, the upper side and the lower side of the upstream end of the water-air contact section A. Set gradually in the air feed trunk line: an air compressor 4, a second valve 5 that controls the intake air amount, and a flow meter M (i.e., a second flow meter 6) that measures the intake air amount.

Regarding the water-gas blending system, as shown in fig. 1, the water-gas contacting section a and the standard concentration section C take the form of cylindrical pipes, and the preliminary blending section B and the outlet section D take the form of tapered conical pipes from upstream to downstream. Preferably, the width of the downstream end of the preliminary blending section B is 2 to 4 times the width of the water inlet of the upstream end of the water-gas contacting section a. Preferably, the length of the standard concentration section C is not less than 20 times the width of the standard concentration section C to ensure sufficient mixing of water and gas. Preferably, the width of the water outlet at the downstream end of the outlet section D is not less than the width of the water inlet of the water-gas contacting section a. The standard concentration section C is used for arranging the electric conduction type aerator electrode. Preferably, the electrode position of the aerator 9 to be calibrated is no less than 5 times the width of the standard concentration section C from the downstream end of the outlet section. Therefore, the aeration water flow at the position of the electrode of the aeration instrument to be calibrated is ensured to have standard aeration concentration.

Example two:

the embodiment is a modification of the water-gas mixing system in the first embodiment, the widths of the water-gas contact section a, the preliminary mixing section B, and the standard concentration section C are equal, as shown in fig. 2, in this arrangement, the width of the water-gas contact section a should be a value between 0.75m and 1m, the diameter of the water flow nozzle should not be larger than 50mm, the total length of the water-gas contact section a and the preliminary mixing section B should not be smaller than 3m, and the diameter of the outlet hole of the outlet section D should not be smaller than 150 mm.

Example three:

the present embodiment is an improvement of the connection between the gas supply system and the water-gas contacting section of the previous embodiment, as shown in fig. 3. In the first embodiment, the air supply system is connected with the upper side and the lower side of the water-air contact section A through the air supply pipeline, and in the embodiment, two air inlets are added at the upstream end of the water-air contact section A, the positions of the air inlets in the vertical flow direction are located at the 1/3 width from the left side edge of the water-air contact section A, and the air inlets can be added to enable the air inlet to be more uniform.

Example four:

the embodiment relates to the improvement of an air supply system, and adds an air inlet mode directly connected with the atmosphere. Modified air supply system as shown in fig. 4, the present embodiment adds a branch air inlet pipe between the second valve 5 and the second flow meter 6 of the air supply system of the previous embodiment, the end of the branch air inlet pipe is an air inlet 13 communicated with the atmosphere, and the air inlet amount is controlled by a third valve 12.

Finally, it should be noted that the above is only used for illustrating the technical solution of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred arrangement, it should be understood by those skilled in the art that the technical solution of the present invention (such as the length and width of the water-gas contact section a, the arrangement position of the aerator, etc.) can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims (9)

1. The utility model provides an air entrainment appearance calibrating device, includes water supply system, air supply system and aqueous vapor mixing system, water supply system with air supply system arranges respectively aqueous vapor mixing system upstream, its characterized in that: the water-gas mixing system comprises: the device comprises a water-gas contact section (A), a primary mixing section (B), a standard concentration section (C) and an outlet section (D) which are arranged from upstream to downstream in sequence.

2. The apparatus of claim 1, wherein: the water supply system comprises a water supply pipeline, and the water supply pipeline is internally provided with:

a water pump (1), the water pump (1) being for supplying water;

a first valve (2), the first valve (2) controlling the flow rate of the supplied water; and

a first flow meter (3), the first flow meter (3) measuring an amount of intake water,

the water supply pipe is connected to the center of the water-gas admixture system at its upstream end.

3. The apparatus of claim 1, wherein: the gas supply system comprises a main gas supply pipeline and one or more branch pipelines branched from the main gas supply pipeline, and the one or more branch pipelines are respectively connected with the side parts of the main gas supply pipeline at the upstream end of the water-gas mixing system;

set gradually in the air feed trunk line:

an air compressor (4);

a second valve (5), the second valve (5) controlling the amount of intake air; and

a second flow meter (6), the second flow meter (6) measuring an intake air amount.

4. The apparatus of claim 3, wherein: the air supply system comprises an air inlet branch pipe which is branched from the second valve of the main air supply pipeline and the second flowmeter, the air inlet branch pipe is directly communicated with the atmosphere, and a third valve is arranged in the air inlet branch pipe.

5. The apparatus of claim 1, wherein: an aerator (9) to be calibrated is arranged at said standard concentration section (C).

6. The apparatus of claim 1, wherein: the water-gas contact section (A) is provided with a first temperature sensor (7) and a first pressure sensor (8), and/or the standard concentration section (C) is provided with a second temperature sensor (10) and a second pressure sensor (11).

7. The apparatus of claim 1, wherein: the width of the downstream end of the preliminary blending section (B) is 2 to 4 times the width of the water inlet of the upstream end of the water-gas contacting section (A), and/or the length of the standard concentration section (C) is not less than 20 times the width of the standard concentration section (C).

8. The apparatus of claim 1, wherein: the width of the water outlet at the downstream end of the outlet section (D) is not less than the width of the water inlet of the water-gas contact section (A).

9. The apparatus of claim 5, wherein: the distance from the electrode position of the aerator (9) to be calibrated to the downstream end of the outlet section is not less than 5 times the width of the standard concentration section (C).

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