A Y-type filter

Abstract

This utility model provides a Y-type filter, belonging to the technical field of filtration devices. It solves the problem of difficulty in observing the filtration status inside the filter during operation. The technical solution is as follows: A Y-type filter includes a main pipe and a secondary pipe. The secondary pipe is connected to and communicates with the side wall below the main pipe. A filtration device is installed inside the secondary pipe. A sampling tube is connected to and communicates with the outer wall of the secondary pipe. An opening and closing device is provided at the inlet of the sampling tube. The beneficial effect of this utility model is that if the operator wants to test the filtration status of the filter, they can open the opening and closing device on the sampling tube to collect the fluid flowing out of the sampling tube, and then close the opening and closing device; then, the fluid flowing out of the sampling tube can be inspected, thereby achieving the monitoring of the filter's filtration status.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, and in particular to a Y-type filter. Background Technology

[0002] Y-type filters are devices used to remove solid impurities from fluids and protect the normal operation of main equipment in pipelines.

[0003] In the prior art, the Y-type filter includes a main pipe and a secondary pipe. The secondary pipe is connected to the side wall below the main pipe, and a filter element is installed inside the secondary pipe. When fluid flows into the filter, it first enters the filter element, which filters the impurities in the fluid. The filtered fluid passes through the filter element and flows into the secondary pipe, and then further flows into the main pipe, thus completing the filtration.

[0004] Because filters are closed devices, it is difficult to observe the filtration status inside the filter during use. When the filter element reaches the end of its service life, or when a large amount of impurities accumulate on the filter element, causing the filtration effect to decline, it is difficult for staff to observe the situation in time and replace or clean the filter element in a timely manner. Therefore, how to conveniently monitor the filtration status of the filter is a technical problem in this field. Summary of the Invention

[0005] The purpose of this invention is to provide a Y-type filter that allows for convenient monitoring of the filtration status of the filter.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a Y-type filter, comprising a main pipe and a secondary pipe, wherein the secondary pipe is connected to and communicates with the side wall below the main pipe, a filter device is provided inside the secondary pipe, a sampling tube is connected to and communicates with the outer wall of the secondary pipe, and an opening and closing device is provided at the opening of the sampling tube.

[0007] Furthermore, the sampling tube is located on the outer wall of the lower end of the secondary pipe. When the filter element needs to be replaced or cleaned, the sampling tube can be opened first to drain the water in the secondary pipe, and then the filter element can be disassembled and removed from the end of the secondary pipe to avoid the impact of the water in the secondary pipe on the disassembly of the filter element.

[0008] Furthermore, the opening and closing device includes a sealing plate and a pressing plate. The sealing plate is rotatably mounted at the opening of the sampling tube. A positioning buckle is provided on the side of the sealing plate away from the rotatable connection, and the positioning buckle can be fastened to the outer wall of the sampling tube. The pressing plate is located on the side of the sealing plate away from the positioning buckle. Pushing the pressing plate causes the sealing plate to rotate, thus opening the sealing plate. To close, rotate the sealing plate to block the opening of the sampling tube, and then let the positioning buckle fasten to the outer wall of the sampling tube to close it.

[0009] Furthermore, a torsion spring is built into the rotating connection of the sealing plate to twist the sealing plate away from the pipe opening. After the sealing plate is rotated open, the torsion spring twists to open the sealing plate upwards, thus allowing the fully sealed plate to be fully opened without the need for manual support.

[0010] Furthermore, the sampling tube has an angled opening that faces upwards. When fluid flows out of the sampling tube, the angled opening acts as a guide, stabilizing the liquid column and preventing splashing.

[0011] Furthermore, an elastic sealing ring is provided on the end wall of the sampling tube opening. The elastic sealing ring cooperates with the sealing plate to seal the sampling tube. After the tube opening is closed, the sealing plate compresses the sealing ring, and the sealing ring further seals the gap between the sealing plate and the tube opening, thereby improving the sealing performance.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. During the operation of the Y-type filter, if the operator wants to check the filtration performance, they can open the opening and closing device on the sampling tube to collect a portion of the fluid flowing out of the tube, and then close the device. The fluid flowing out of the sampling tube is then inspected to check the impurity content. If it does not meet the filtration standards, the fluid transfer in the pipeline can be stopped, and the filter element can be replaced by opening the secondary pipeline. This allows for convenient monitoring of the filtration performance during the filter's operation.

[0014] 2. The sampling tube allows for easy replacement or cleaning of the filter cartridge. The sampling tube can be opened first to drain the water in the secondary pipe before the filter cartridge can be removed from the end of the secondary pipe, thus avoiding the impact of water accumulation in the secondary pipe on the removal of the filter cartridge. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] Figure 1 This is a cross-sectional structural diagram of a Y-type filter in Embodiment 1 of this utility model.

[0017] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle.

[0018] The attached diagram is labeled as follows: 1. Main pipe; 11. Inclined plate; 2. Secondary pipe; 3. Filter device; 31. Perforated pipe; 32. Filter screen; 4. Sampling tube; 41. Elastic sealing ring; 42. Pin; 43. Torsion spring; 5. Opening and closing device; 51. Sealing plate; 511. Positioning buckle; 52. Pressing plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0020] Example 1

[0021] See Figure 1-2 The present invention provides a technical solution as follows: a Y-type filter, including a main pipe 1 and a secondary pipe 2. The secondary pipe 2 is connected to and communicates with the side wall of the main pipe 1. In this embodiment, the secondary pipe 2 is preferably located below the main pipe 1, so that the fluid entering the main pipe 1 can automatically flow into the secondary pipe 2 under the action of gravity. An inclined plate 11 is connected inside the main pipe 1, and the edge of the inclined plate 11 is adapted to be connected to the inner wall of the main pipe 1.

[0022] Preferably, a filter device 3 is connected inside the secondary pipe 2. The filter device 3 includes a perforated pipe 31 and a filter screen 32. The perforated pipe 31 is formed by rolling a perforated plate. The perforated pipe 31 is coaxially arranged with the secondary pipe 2. The lower end of the perforated pipe 31 is connected to the end of the secondary pipe 2 through a flange structure. An opening is opened on the inclined plate 11, which communicates with the perforated pipe 31. The inner wall of the opening is also provided with an insertion groove for the upper end of the perforated pipe 31 to be inserted. There is a gap between the outer wall of the perforated pipe 31 and the inner wall of the secondary pipe 2. The filter screen 32 is also rolled into a tubular shape and is fitted onto the inner wall of the perforated pipe 31. The filter screen 32 is fixed to the perforated pipe 31 by bolts or welding.

[0023] One end of the inclined plate 11 of the main pipe 1 is the inlet. When the fluid flows into the main pipe 1 through the inlet, it first passes through the inclined plate 11 and enters the filter device 3. The filter screen 32 filters the impurities in the fluid. The filtered fluid flows through the filter screen 32 and the holes on the perforated pipe 31 into the secondary pipe 2, and then further into the main pipe 1, thus completing the filtration.

[0024] Preferably, a sampling tube 4 is connected and communicated on the outer wall of the secondary pipe 2. The sampling tube 4 is located at the lower end of the secondary pipe 2. The opening of the sampling tube 4 is oblique and faces upward. An opening and closing device 5 is provided at the opening of the sampling tube 4. The opening and closing device 5 includes a sealing plate 51 and a pressing plate 52. The sealing plate 51 is rotatably connected to the opening of the sampling tube 4 by a pin 42. A positioning buckle 511 is integrally formed on the side of the sealing plate 51 away from the rotatable connection. The positioning buckle 511 can be fastened to the outer wall of the sampling tube 4. The pressing plate 52 is located on the side of the sealing plate 51 away from the positioning buckle 511. The pin 42 connecting the sealing plate 51 is located between the pressing plate 52 and the sealing plate 51. A torsion spring 43 is sleeved on the pin 42 connecting the sealing plate 51. The torsion spring 43 can twist the sealing plate 51 to rotate away from the opening.

[0025] Preferably, the end wall of the sampling tube 4 is connected to an elastic sealing ring 41 by adhesive. The elastic sealing ring 41 is adapted to the sampling tube 4 opening and is made of corrosion-resistant and high-temperature resistant elastic rubber.

[0026] Example 2

[0027] The difference from Embodiment 1 is that the opening and closing device 5 is a valve. In this embodiment, the valve is a butterfly valve. In other cases, the valve can also be a ball valve, gate valve or other common pipe valves.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A Y-type filter comprising a main duct (1) and a secondary duct (2) connected and communicating on a lateral wall below the main duct (1), a filtering device (3) being provided inside the secondary duct (2), characterized in that, The outer wall of the secondary pipe (2) is connected to and communicates with a sampling tube (4), and an opening and closing device (5) is provided at the opening of the sampling tube (4).

2. The Y-type filter of claim 1, wherein, The sampling tube (4) is located on the outer wall of the lower end of the secondary pipe (2).

3. The Y-type filter of claim 1, wherein, The opening and closing device (5) includes a sealing plate (51) and a pressing plate (52). The sealing plate (51) is rotatably disposed at the opening of the sampling tube (4). A positioning buckle (511) is provided on the side of the sealing plate (51) away from the rotatable connection. The positioning buckle (511) can be fastened to the outer wall of the sampling tube (4). The pressing plate (52) is located on the side of the sealing plate (51) away from the positioning buckle (511).

4. The Y-type filter according to claim 3, characterized in that, The rotating connection of the sealing plate (51) has a built-in torsion spring (43) for twisting the sealing plate (51) to rotate away from the pipe opening.

5. The Y-type filter according to claim 3, characterized in that, The sampling tube (4) has an oblique opening, with the opening of the sampling tube (4) facing upwards.

6. The Y-type filter according to claim 3 or 5, characterized in that, An elastic sealing ring (41) is provided on the end wall of the sampling tube (4), and the elastic sealing ring (41) cooperates with the sealing plate (51) to seal the sampling tube (4).

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