CN215448910U

CN215448910U - Filter material aperture testing arrangement

Info

Publication number: CN215448910U
Application number: CN202121562361.7U
Authority: CN
Inventors: 黄朝强; 黄昊辰
Original assignee: Longyan Gold Particle Testing Service Co ltd
Current assignee: Longyan Haolong Automation Equipment Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-01-07
Anticipated expiration: 2031-07-09

Abstract

The utility model provides a filter material aperture testing device which comprises an upper chamber, a lower chamber and an air source, wherein the upper chamber and the lower chamber form a slit for placing filter materials, the air source is communicated with the lower chamber through a first valve, and the lower part of the lower chamber is provided with a fifth valve; the upper chamber is provided with a first pressure sensor; the lower chamber is provided with a second pressure sensor; the upper cavity is provided with a liquid inlet which is communicated with a liquid adding device through a second valve; an air outlet is formed in the right side of the upper chamber and is externally connected with a flow sensor through a third valve; the top of the upper chamber is provided with an air blowing port which is externally connected with a second air source through a fourth valve; and the control system receives, stores and processes the data of the first pressure sensor, the second pressure sensor and the flow sensor, and controls the air source, the second air source, the first valve, the second valve, the third valve, the fourth valve and the fifth valve to work.

Description

Filter material aperture testing arrangement

Technical Field

The utility model relates to a filter material aperture testing device.

Background

The aperture value of the filter material is an important parameter for confirming the filtering precision, and a wet method commonly used method in the current commonly used detection method is a bubble method (or referred to as an bubbling method) for obtaining the aperture value of the filter material; the principle of the existing filter material aperture testing device is as follows: as shown in fig. 1, a filter material is plugged into a gap between an upper chamber 1 and a lower chamber 2, the filter material is clamped by the upper chamber 1 and the lower chamber 2 through an elastic mechanism or a hydraulic mechanism (not shown in the figure), liquid 3 is injected into the upper chamber 2 through a needle cylinder, gas is introduced into the lower chamber 1 through a gas source 4, when the upper chamber 1 and the lower chamber 2 reach a certain pressure difference, the gas penetrates through the filter material, the liquid 3 above generates bubbles, the liquid level height value of the U-shaped pipe is the pressure difference, one person (a) is required to observe the liquid level height value of the U-shaped pipe during an experiment, the other person (b) observes the bubbles, and when the bubbles explode, the person (b) immediately notifies the person (a) and records the pressure difference at the moment; the accuracy is low and troublesome by manual observation, and the accuracy of measurement is low because two persons are required to cooperate and there is a time difference between two persons observing communication.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and provides a filter material aperture testing device.

The utility model adopts the following technical scheme:

a filter material aperture testing device comprises an upper chamber, a lower chamber and an air source, wherein a slit for placing filter materials is formed in the lower chamber of the upper chamber, the air source is communicated with the lower chamber through a first valve, and a fifth valve is arranged at the lower part of the lower chamber; the upper chamber is provided with a first pressure sensor; the lower chamber is provided with a second pressure sensor; the upper cavity is provided with a liquid inlet which is communicated with a liquid adding device through a second valve; an air outlet is formed in the right side of the upper chamber and is externally connected with a flow sensor through a third valve; the top of the upper chamber is provided with an air blowing port which is externally connected with a second air source through a fourth valve; and the control system receives, stores and processes the data of the first pressure sensor, the second pressure sensor and the flow sensor, and controls the air source, the second air source, the first valve, the second valve, the third valve, the fourth valve and the fifth valve to work.

Preferably, the liquid inlet is arranged on the left side of the upper part of the upper chamber.

Preferably, the third valve is a needle-type ball valve.

Preferably, the first valve, the second valve and the fourth valve are all ball valves.

Preferably, the flow sensor is a 30ml flow sensor.

The utility model has the beneficial effects that: the method can be carried out by only one operator, so that the error generated between the two persons is avoided, the data reading is carried out by the system, and the errors of the height of the liquid level of the U-shaped pipe and the communication time delay when the operator observes the liquid level of the U-shaped pipe through eyes are avoided.

Drawings

Fig. 1 is a schematic diagram of a prior art apparatus.

Fig. 2 is a schematic diagram of the present invention.

Detailed Description

In order to make the purpose and technical solution of the present invention clearer, the present invention is further described with reference to the accompanying drawings and embodiments:

the filter aperture testing device shown in fig. 2 comprises an upper chamber 1, a lower chamber 2 and an air source 4, wherein the upper chamber and the lower chamber form a slit for placing a filter 9, the air source 4 is communicated with the lower chamber through a first valve 51, and a fifth valve 55 is arranged at the lower part of the lower chamber; the upper chamber is provided with a first pressure sensor 61; the lower chamber is provided with a second pressure sensor 62; the upper cavity is provided with a liquid inlet which is communicated with the liquid adding device 8 through a second valve 52; the upper chamber 1 is provided with an air outlet which is externally connected with a flow sensor 7 through a third valve 53; the top of the upper chamber 1 is provided with a blowing port which is externally connected with a second air source 42 through a fourth valve 54; and the control system receives, stores and processes the data of the first pressure sensor 61, the second pressure sensor 62 and the flow sensor 7, and controls the air source 4, the second air source 42, the first valve 51, the second valve 52, the third valve 53, the fourth valve 54 and the fifth valve 55 to work.

Preferably, the liquid inlet is arranged at the left side of the upper part of the upper chamber 1, so that after bubbles are broken, gas can be prevented from blowing part of liquid upwards into the gas outlet.

Preferably, the third valve 53 is a needle-type ball valve.

Preferably, the first valve 51, the second valve 52 and the fourth valve 54 are all ball valves.

Preferably, the flow sensor 7 is a 30ml flow sensor, and the gas generated when bubbles are broken is less, so that the gas can be sensed more sensitively by using the 30ml flow sensor.

The application process of the utility model comprises the following steps:

step one, the second valve 52 is opened, and the second valve 52 is closed after the liquid 3 is added into the upper chamber 1 through the liquid adding device.

And step two, opening the third valve 53, then opening the first valve 51 to pressurize the lower chamber 2 by the gas source 4, and continuously reading the pressure values of the upper chamber and the lower chamber by the first pressure sensor 61 and the second pressure sensor 62.

And step three, generating air flow when bubbles are generated and broken, sensing the air flow by the flow sensor 7, and reading the values of the first pressure sensor 61 and the second pressure sensor 62 at the moment by the control system, storing and processing the values.

And step four, closing the gas source 4, the first valve 51 and the third valve 53, and simultaneously opening the fifth valve 55, so that the lower chamber is recovered to normal pressure.

And step five, opening the fourth valve 54, simultaneously opening the second air source 42, performing back blowing, blowing the liquid 3 into the lower chamber, and discharging the liquid through the fifth valve 55.

And step six, resetting the equipment, and extracting the filter material 9 to prepare for the next test.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The components used in the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.

Claims

1. A filter material aperture testing device comprises an upper chamber, a lower chamber and an air source, wherein a slit for placing filter materials is formed in the lower chamber of the upper chamber, the air source is communicated with the lower chamber through a first valve, and a fifth valve is arranged at the lower part of the lower chamber; the method is characterized in that:

the upper chamber is provided with a first pressure sensor;

the lower chamber is provided with a second pressure sensor;

the upper cavity is provided with a liquid inlet which is communicated with a liquid adding device through a second valve;

an air outlet is formed in the right side of the upper chamber and is externally connected with a flow sensor through a third valve;

the top of the upper chamber is provided with an air blowing port which is externally connected with a second air source through a fourth valve;

and the control system receives, stores and processes the data of the first pressure sensor, the second pressure sensor and the flow sensor, and controls the air source, the second air source, the first valve, the second valve, the third valve, the fourth valve and the fifth valve to work.

2. The filter aperture testing device of claim 1, wherein:

the liquid inlet is arranged on the left side of the upper part of the upper chamber.

3. The filter aperture testing device of claim 1, wherein:

the third valve is a needle-type ball valve.

4. The filter aperture testing device of claim 1, wherein:

the first valve, the second valve, the fourth valve and the fifth valve are all ball valves.

5. The filter aperture testing device of any one of claims 1 to 4, wherein:

the flow sensor is a 30ml flow sensor.