Internal filtering device for pressure test tool

Abstract

The utility model relates to the field of air pressure experiments, and discloses an internal filtering device for a pressure test tool, which comprises parallel filtering kettles, the parallel filtering kettles are formed by fixedly connecting a first filtering kettle and a second filtering kettle in a left-right parallel manner, the first filtering kettle and the second filtering kettle are in bilateral symmetry, and the tops of the joints of the first filtering kettle and the second filtering kettle are communicated. A cover plate is fixedly connected to the top of the parallel filtering kettle, the bottom of the cover plate is tightly attached to the upper portions of two partition plates, the two partition plates are symmetrically distributed and located in the first filtering kettle and the second filtering kettle respectively, the partition plates are fixedly connected with the front inner wall and the rear inner wall of the first filtering kettle and the front inner wall and the rear inner wall of the second filtering kettle, and the bottom of each partition plate extends to the lower position of the middle of the parallel filtering kettle. The top of the cover plate is fixedly connected with an inlet pipe and an outlet pipe, and the inlet pipe penetrates through the cover plate and extends into the first filtering kettle.

Description

Technical Field

[0001] The utility model relates to the field of air pressure experiment, and specifically relates to an internal filtering device for a pressure test tool. Background Art

[0002] When conducting air pressure tests on pressure vessels, the air pump, as a key device for providing air pressure, often carries a certain amount of oil during its operation. These oils will enter the interior of the pressure vessel equipment as the gas flows, causing adverse effects on the experimental results and the cleanliness of the equipment. Oil pollution will not only reduce the accuracy of the experimental results, but may also damage the equipment and shorten its service life. Utility Model Content

[0003] In order to overcome the above-mentioned deficiencies, the utility model provides an internal filtering device for a pressure testing tool.

[0004] The technical solution adopted by this utility model:

[0005] The filtration unit is connected to the filter press by the filter press, and the filter press is connected to the filter press by the filter press.

[0006] Beneficial effects of the utility model:

[0007] The utility model adopts the principle of hookah and a parallel double-pot design to achieve double filtration of gas, greatly improving the filtering effect and effectively removing oil and dirt contained in the gas. The partition not only separates the two filtering pots, but also guides the flow of gas, ensuring that the fluid in the filtering pot is fully in contact with the filtered liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 yes Figure 1 Left view of;

[0010] Figure 3 yes Figure 2 Cross-section at AA;

[0011] Figure 4 yes Figure 1 Front view of

[0012] Figure 5 yes Figure 4 Cross-section view at the middle BB.

[0013] The specific reference numerals in all the drawings are: 1. filter pot one; 2. filter pot two; 3. partition; 4. cover plate; 5. inlet pipe; 6. outlet pipe; 7. liquid adding pipe; 8. liquid draining pipe. DETAILED DESCRIPTION

[0014] like Figure 1-5 As shown: an internal filtering device for a pressure test tool, including a parallel filter pot, the parallel filter pot is fixedly connected by a filter pot 1 and a filter pot 2 2 in parallel, the filter pot 1 and the filter pot 2 2 are symmetrical, the top of the connection between the filter pot 1 and the filter pot 2 2 is connected, the top of the parallel filter pot is fixedly connected with a cover plate 4, the bottom of the cover plate 4 is tightly fitted on the upper part of two partitions 3, the two partitions 3 are symmetrically distributed, the two partitions 3 are respectively inside the filter pot 1 and the filter pot 2 2, and the partitions 3 are fixed to the front and rear inner walls of the filter pot 1 and the filter pot 2 2. The bottom of the partition 3 extends to the lower middle part of the parallel filter pot, and the top of the cover plate 4 is fixedly connected with an inlet pipe 5 and an outlet pipe 6. The inlet pipe 5 passes through the cover plate 4 and extends to the interior of the filter pot 1. The lower end of the inlet pipe 5 is located below the partition 3. The bottom of the outlet pipe 6 passes through the cover plate 4 and extends to the top of the interior of the filter pot 2 2. The middle of the outer wall of the filter pot 1 and the filter pot 2 2 are fixedly connected with a liquid adding pipe 7, and the bottom of the filter pot 1 and the filter pot 2 2 are fixedly connected with a drain pipe 8. The inlet pipe 5, the outlet pipe 6, the liquid adding pipe 7 and the drain pipe 8 are all equipped with valves.

[0015] Filter pot 1 and filter pot 2 are in a standby state. Open the valve to make the internal and external air pressures of filter pot 1 and filter pot 2 consistent, inject filtrate into filter pot 1 and filter pot 2, and close the valve when the liquid level of the filtrate is above the inlet pipe 5 and the lower end of the partition 3.

[0016] Open the valves on inlet pipe 5 and outlet pipe 6. Connect inlet pipe 5 to the suction pump, which draws gas into filter pot 1. Connect outlet pipe 6 to the exhaust pump, which exhausts gas from filter pot 2. Oily gas enters filter pot 1 through inlet pipe 5. Due to the presence of partition 3, the gas flows downward within filter pot 1 and is initially filtered by the filtrate. The suction and exhaust pumps accelerate gas flow.

[0017] The gas after preliminary filtration rises to the top through the gap between the partition 3 and the inner wall of the filter pot 1 and enters the filter pot 2 2.

[0018] In the filter pot 2, the gas is filtered again through the filtrate to further remove oil stains.

[0019] Open the valve on the outlet pipe 6, and the clean gas or liquid after two filtrations is discharged through the outlet pipe 6 and supplied to the pressure vessel for air pressure test.

[0020] When necessary, filtered liquid can be added to the filter pot 1 and the filter pot 2 or the filter medium can be replaced through the liquid adding pipe 7.

[0021] After cleaning or maintenance, open the valve on the drain pipe 8 to discharge the waste liquid.

Claims

1. An internal filter device for a pressure test tool, characterized in that: The invention comprises a parallel filter pot, wherein the parallel filter pot is fixedly connected by a filter pot (1) and a filter pot (2) in parallel, the filter pot (1) and the filter pot (2) are symmetrical, the top of the connection between the filter pot (1) and the filter pot (2) is connected, the top of the parallel filter pot is fixedly connected with a cover plate (4), the bottom of the cover plate (4) is tightly fitted on the upper part of two partitions (3), the two partitions (3) are symmetrically distributed, the two partitions (3) are respectively inside the filter pot (1) and the filter pot (2), the partitions (3) are fixedly connected to the front and rear inner walls of the filter pot (1) and the filter pot (2), and the bottom of the partition (3) extends to The top of the cover plate (4) is fixedly connected to an inlet pipe (5) and an outlet pipe (6) at a lower middle position of the parallel filter pot. The inlet pipe (5) passes through the cover plate (4) and extends to the interior of the first filter pot (1). The lower end of the inlet pipe (5) is located below the partition plate (3). The bottom of the outlet pipe (6) passes through the cover plate (4) and extends to the top of the interior of the second filter pot (2). The middle of the outer wall of the first filter pot (1) and the second filter pot (2) are fixedly connected to a liquid adding pipe (7). The bottom of the first filter pot (1) and the second filter pot (2) are fixedly connected to a liquid draining pipe (8). The inlet pipe (5), the outlet pipe (6), the liquid adding pipe (7) and the liquid draining pipe (8) are all installed with valves.

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