Ventilation capacity detection device for air filtering sheet

Abstract

The utility model relates to a ventilation capacity detection device for an air filtering sheet. Belongs to the technical field of lead-acid storage battery air filter ventilatory capacity detection. The device mainly solves the problems that the air permeability of the air filter cannot be effectively measured when the air filter is blown through compressed air at present, misjudgment is easily caused by sensory judgment, and whether the air permeability of the air filter meets the requirement cannot be effectively detected and judged. The device is mainly characterized by comprising a flow meter, a base, a pressure meter and a pressing cover, a three-way gas channel is arranged in the base, the top of the base is provided with a gas filtering piece installation position right opposite to a first exhaust hole in the gas channel, and a flow meter and a pressure meter are installed at a flow meter installation port and a pressure meter installation port in the gas channel respectively; the pressing cover is provided with a second exhaust hole right opposite to the first exhaust hole. The device has the characteristics of being capable of accurately detecting the air permeability value, improving the detection efficiency and judging whether the air displacement of the air filter meets the requirement or not, and is mainly used for judging whether the air displacement of the air filter with different material standards meets the requirement or not.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of lead -acid battery filter gas piece ventilation quantity detection, specifically related to a filter gas piece ventilation quantity detection device. BACKGROUND

[0002] The storage battery produced by our company is mainly used for automobile starting maintenance-free lead-acid battery, and one exhaust hole is designed on the positive and negative sides of the storage battery, and one filter gas piece is arranged in the exhaust hole. The filter gas piece has hydrophobicity, which ensures that the acid liquid cannot be discharged through the exhaust hole, and only gas can be discharged to the outside of the storage battery through the filter gas piece. Hydrogen and oxygen are generated by electrolysis of water in the later stage of battery charging, and the generated gas needs to be discharged through the exhaust hole in time, so the air permeability of the filter gas piece is particularly important.

[0003] At present, compressed air is used to blow the filter gas piece, and whether a certain amount of gas passes through is determined by the sense of touch. If the pressure of the compressed gas is too high, the filter gas piece will be damaged and scrapped. The existing method has the following problems and defects: the air permeability of the filter gas piece cannot be effectively measured; the sense of touch is easy to misjudge; because the filter gas piece materials used in different types of storage batteries are different, the air permeability of the filter gas piece of different materials cannot be effectively detected and determined whether it meets the requirements.

[0004] Therefore, a tool needs to be designed to measure whether the air permeability value meets the requirements, so as to ensure that the hydrogen and oxygen generated during the charging process are discharged in time. Utility model content

[0005] The utility model aims at the above-mentioned insufficient place and provides a filter gas piece ventilation quantity detection device, which can accurately detect the air permeability value, improve the detection efficiency, and formulate reasonable air permeability requirements for filter gas pieces of different materials and filter gas pieces with different air permeability requirements, so as to effectively detect and judge.

[0006] The technical solution of the utility model is: a filter gas piece ventilation quantity detection device, characterized by: comprising a flow meter, a base, a pressure gauge and a compression cover; wherein the base is provided with a three-way gas channel, the top is provided with a filter gas piece mounting position opposite to the first exhaust hole in the gas channel, and the flow meter mounting port and the pressure gauge mounting port in the gas channel are respectively provided with a flow meter and a pressure gauge; the compression cover is matched with the filter gas piece mounting position, and is provided with a second exhaust hole opposite to the first exhaust hole.

[0007] The three-way gas channel in the technical solution of the utility model is composed of a horizontal channel and a vertical channel; the two ports of the horizontal channel are respectively a flow meter mounting port and a pressure gauge mounting port; the upper port of the vertical channel is a first exhaust hole.

[0008] The technical solution of the utility model discloses the filter piece installation position is set up on the upper surface of the base, and the convex platform cooperates with the filter piece clamping.

[0009] The technical solution of the utility model discloses the press cover is equipped with the recess that cooperates with the convex platform.

[0010] The technical solution of the utility model discloses the base is rectangular body, and the press cover is rectangular body or cylinder.

[0011] The technical solution of the utility model discloses the flowmeter is connected with the compressed gas source through the air pipe.

[0012] The technical solution of the utility model discloses the air pipe is equipped with the pressure stabilizing valve.

[0013] The technical solution of the utility model discloses the diameter of the second exhaust hole is greater than the diameter of the first exhaust hole.

[0014] The technical solution of the utility model discloses the recess depth of the press cover is equal or slightly less than the height of the convex platform.

[0015] The utility model discloses a kind of filter piece ventilation quantity detection devices constituted by flowmeter, base, pressure gauge and press cover, wherein, three-way gas passage is equipped in base, top is equipped with the filter piece installation position that is directly opposite with the first exhaust hole in gas passage, flowmeter installation port and pressure gauge installation port in gas passage are respectively installed flowmeter and pressure gauge, press cover cooperates with filter piece installation position, and it is equipped with the second exhaust hole that is directly opposite with the first exhaust hole, so when detecting, round filter piece is placed on the filter piece installation position on the top of base, press cover is covered, flowmeter is connected with compressed gas source, compressed gas source switch is opened, the pressure of pressure gauge is maintained stable at set value and remains unchanged, gas passes through filter piece from the first exhaust hole, then exhausts again through the second exhaust hole, records the flow value V that flowmeter shows, the area of second exhaust hole is S, unit area ventilation quantity=V / S, corresponding material filter piece can be judged whether exhaust capacity meets the requirement.

[0016] The utility model has the characteristics that can accurately detect the air permeability value, improve detection efficiency and judge whether the exhaust capacity of filter piece meets the requirement, and is mainly used for judging whether the exhaust capacity of filter piece of different material standards meets the requirement. DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model.

[0018] Reference numerals: 1-compressed gas source, 2-flowmeter, 3-pressure stabilizing valve;4-press cover;5-second exhaust hole;6-filter piece;7-first exhaust hole;8-gas passage;9-pressure gauge;10-base. DETAILED DESCRIPTION

[0019] The utility model will be further described below in combination with the drawings.

[0020] As Figure 1 shown, one embodiment of the air filter ventilation quantity detection device of the utility model is composed of a compressed air source 1, a pressure stabilizing valve 3, a flowmeter 2, a base 10, a pressure gauge 9 and a compression cover 4.

[0021] The base 10 is a rectangular body. The base 10 is provided with a three-way gas passage 8, which is composed of a horizontal passage and a vertical passage. The two ports of the horizontal passage are respectively a flowmeter mounting port and a pressure gauge mounting port. The upper port of the vertical passage is a first exhaust hole 7. The top of the base 10 is provided with an air filter mounting position opposite to the first exhaust hole 7 in the gas passage 8. The air filter mounting position is a boss provided on the upper surface of the base 10 and matched with the air filter 6. The height of the boss is equal to or slightly smaller than the thickness of the air filter 6.

[0022] The compression cover 4 is a rectangular body. The compression cover 4 is provided with a groove matched with the boss, matched with the air filter mounting position, and provided with a second exhaust hole 5 opposite to the first exhaust hole 7. The diameter of the second exhaust hole 5 is greater than that of the first exhaust hole 7. The area of the first exhaust hole 7 is S. The depth of the groove of the compression cover 4 is equal to or slightly smaller than the height of the boss.

[0023] The air inlet end of the flowmeter 2 is connected with the compressed air source 1 through an air inlet pipe. The air outlet end is connected with the flowmeter mounting port in the gas passage 8 through an air outlet pipe. The air inlet pipe is provided with the pressure stabilizing valve 3.

[0024] The connecting end of the pressure gauge 9 is connected with the pressure gauge mounting port in the gas passage 8 through an air pipe.

[0025] During detection, the circular air filter 6 is placed in the air filter mounting position on the top of the base 10, and the compression cover 4 is covered. The air filter 6 is fixed on the tool. The switch of the compressed air source 1 is turned on. The pressure stabilizing valve 3 is adjusted. The pressure of the pressure gauge 9 is maintained at 0.1 KPa. The gas passes through the air filter 6 from the first exhaust hole 7 and is discharged through the second exhaust hole 5. The flow value V displayed by the flowmeter 2 is recorded. The area of the first exhaust hole 7 is S. The ventilation quantity per unit area is V / S. Whether the exhaust quantity meets the requirements is determined by comparing the corresponding material air filter.

Claims

1. A filter element airflow detection device, characterized in that: The utility model relates to a gas flow meter, which comprises a flow meter (2), a base (10), a pressure gauge (9) and a compression cover (4), wherein the base (10) is internally provided with a three-way gas passage (8), the top of the base (10) is provided with a gas filter mounting position opposite to a first exhaust hole (7) in the gas passage (8), the flow meter mounting port and the pressure gauge mounting port in the gas passage (8) are respectively provided with the flow meter (2) and the pressure gauge (9), and the compression cover (4) is matched with the gas filter mounting position and is provided with a second exhaust hole (5) opposite to the first exhaust hole (7).

2. The air filter cartridge airflow detection device of claim 1, wherein: The three-way gas passage (8) is composed of a horizontal passage and a vertical passage, the two ports of the horizontal passage are respectively the flow meter mounting port and the pressure gauge mounting port, and the upper port of the vertical passage is the first exhaust hole (7).

3. The device according to claim 2, wherein: The gas filter mounting position is a boss arranged on the upper surface of the base (10) and matched with the gas filter (6).

4. The air filter cartridge airflow detection device of claim 3, wherein: The compression cover (4) is provided with a groove matched with the boss.

5. The air filter cartridge airflow detection device of claim 4, wherein: The base (10) is a rectangular body, and the compression cover (4) is a rectangular body or a cylindrical body.

6. The gas filter ventilation amount detection device according to any one of claims 1 to 5, characterized by: The flow meter (2) is connected with the compressed gas source (1) through a gas pipe.

7. The air filter cartridge airflow detection device of claim 6, wherein: The gas pipe is provided with a pressure stabilizing valve (3).

8. The gas filter ventilation amount detection device according to any one of claims 1 to 5 and 7, characterized by: The diameter of the second exhaust hole (5) is greater than that of the first exhaust hole (7).

9. The gas passage detection device according to claim 4 or 5, wherein: The depth of the groove of the compression cover (4) is equal to or less than the height of the boss.

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