A detachable filter for heating pipes

Abstract

The utility model relates to filter field, concretely is a kind of filter for detachable heating pipeline, including inner tube, the limit ring is fixedly installed on the inner tube outer wall, the outer tube is slidably connected to the inner tube outer side, the filter assembly is installed on the inner tube, the filter assembly carries out filtration to water flow, the inner tube one end is connected with intermediate pipe, the intermediate pipe bottom middle position is connected with drain pipe, the valve is installed in the drain pipe bottom;The utility model in use, the outer tube can along the sliding of inner tube, so that when disassembling inner tube and outer tube, by shortening distance, inner tube and outer tube can be easily disassembled, without force even with the aid of hammer and other tools to disassemble, disassembly labor-saving;And by the continuous sliding of outer tube along the inner tube, the entire filter assembly can also be exposed, so that there is no excessive hindrance around filter assembly, facilitate operator to disassemble and maintain filter assembly.

Description

Technical Field

[0001] This utility model relates to the field of filters, specifically a detachable filter for heating pipelines. Background Technology

[0002] Filters are an indispensable device in pipelines that transport media. They filter the water flow in the pipeline to ensure the cleanliness and hygiene of the water. Due to the special nature of filters, they often need to be disassembled for maintenance.

[0003] Existing filters for heating pipelines, such as the filter device for heating pipelines disclosed in CN217594026U, involve opening a flushing pipe via an inlet three-way valve and simultaneously opening a drain valve during filter pipe maintenance. Water flows through the flushing pipe into the filter pipe and exits through the drain pipe, flushing the filter screen and removing impurities, thus cleaning the filter screen and extending its service life. However, the filter pipe is installed between the inlet and outlet connecting pipes, and both are secured together by flanges and bolts. This results in a very tight fit between the filter pipe and the inlet / outlet connecting pipes. Even after removing the bolts, force or tools like a hammer are required to disassemble the filter pipe, making disassembly inconvenient. Therefore, we propose a detachable filter for heating pipelines. Utility Model Content

[0004] The purpose of this utility model is to provide a detachable filter for heating pipelines, including an inner pipe, a limit ring fixedly installed on the outer wall of the inner pipe, an outer pipe slidably connected to the outer side of the inner pipe, a filter assembly installed on the inner pipe, the filter assembly filtering the water flow, an intermediate pipe connected to one end of the inner pipe, a drain pipe connected to the middle of the bottom of the intermediate pipe, and a valve installed at the bottom of the drain pipe.

[0005] Preferably, both ends of the intermediate tube are higher than the middle position of the intermediate tube.

[0006] Preferably, the filter assembly includes a mounting bracket, which is fixedly mounted on the inner tube by bolts. The mounting bracket is rotatably mounted with a rotating shaft via a sealed bearing. One end of the rotating shaft is fixedly connected to a fan blade, and the other end of the rotating shaft is fixedly connected to a filter screen.

[0007] Preferably, a sealing ring one is fixedly installed on the outer wall of the filter screen, a sealing ring two is movably fitted to the outer side of the sealing ring one, and the sealing ring two is embedded in the inner tube.

[0008] Preferably, the outer wall of the inner tube and the limiting ring are both fixedly connected to the sealing ring three, and the inner wall of the outer tube is fixedly installed with the sealing ring four, the inner side of the sealing ring slidingly adhering to the outer wall of the inner tube.

[0009] Preferably, the end of the intermediate pipe furthest from the inner pipe is connected to a three-way valve, and the three-way valve is connected to the water inlet pipe.

[0010] Preferably, one end of the outer pipe is connected to a three-way valve two, the three-way valve two is connected to a water outlet pipe, and a flushing pipe is connected between the three-way valve two and the three-way valve one.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. When using this utility model, the outer tube can slide along the inner tube, so that when disassembling the inner tube and the outer tube, the distance can be shortened and the inner tube and the outer tube can be easily disassembled without the need for force or even the use of tools such as hammers, making disassembly effortless; and the continuous sliding of the outer tube along the inner tube can also expose the entire filter assembly, so that there are not too many obstacles around the filter assembly, making it convenient for operators to disassemble and maintain the filter assembly.

[0012] 2. In this invention, when rinsing the filter screen, the water after rinsing the filter screen will enter the middle pipe. At the same time, the valve is opened. Since both ends of the middle pipe are higher than the middle position, the water in the middle pipe will gradually flow towards the middle and eventually be discharged from the drain pipe. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 A schematic diagram of the inner and outer tubes; Figure 3 This shows a cross-sectional view of the outer tube and a schematic diagram of the inner tube.

[0014] In the diagram: 1. Inner tube; 2. Limiting ring; 3. Outer tube; 4. Filter assembly; 401. Mounting bracket; 402. Shaft; 403. Fan blade; 404. Filter screen; 5. Intermediate tube; 6. Drain pipe; 7. Valve; 8. Sealing ring one; 9. Sealing ring two; 10. Sealing ring three; 11. Sealing ring; 12. Three-way valve one; 13. Inlet pipe; 14. Three-way valve two; 15. Outlet pipe; 16. Flushing pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Reference Figure 1 - Figure 3 This utility model discloses a detachable filter for heating pipelines, comprising an inner pipe 1, a limiting ring 2 fixedly installed on the outer wall of the inner pipe 1, an outer pipe 3 slidably connected to the outer side of the inner pipe 1, a filter assembly 4 installed on the inner pipe 1, the filter assembly 4 filtering the water flow, an intermediate pipe 5 connected to one end of the inner pipe 1, a drain pipe 6 connected to the middle of the bottom of the intermediate pipe 5, and a valve 7 installed at the bottom of the drain pipe 6.

[0017] Both ends of the intermediate pipe 5 are higher than the middle position of the intermediate pipe 5. When the work is stopped, the valve 7 is opened. Since both ends of the intermediate pipe 5 are higher than the middle position of the intermediate pipe 5, the water in the intermediate pipe 5 will gradually flow towards the middle and eventually be discharged from the drain pipe 6.

[0018] The filter assembly 4 includes a mounting bracket 401, which is fixedly mounted on the inner tube 1 by bolts. A rotating shaft 402 is rotatably mounted on the mounting bracket 401 via a sealed bearing. One end of the rotating shaft 402 is fixedly connected to a fan blade 403, and the other end is fixedly connected to a filter screen 404. When hot water flowing in the inner tube 1 enters the outer tube 3 through the filter screen 404, impurities in the hot water are filtered out. Furthermore, the flow of hot water in the outer tube 3 drives the fan blade 403 to rotate, which in turn drives the rotating shaft 402 to rotate, thus rotating the filter screen 404 and preventing it from remaining stationary, reducing the amount of impurities adhering to it. It should be noted that all parts of the filter assembly 4 are made of stainless steel, making the filter assembly 4 durable.

[0019] A sealing ring 8 is fixedly installed on the outer wall of the filter screen 404. A second sealing ring 9 is movably fitted to the outer side of the first sealing ring 8. The second sealing ring 9 is embedded in the inner tube 1. Both the first sealing ring 8 and the second sealing ring 9 are made of rubber. The movable fit between the first sealing ring 8 and the second sealing ring 9 ensures good sealing between them and prevents impurities from passing through between them.

[0020] The outer wall of the inner tube 1 and the limiting ring 2 are both fixedly connected to the sealing ring 3 10. The inner wall of the outer tube 3 is fixedly installed with the sealing ring 4 11. The inner side of the sealing ring 11 slides against the outer wall of the inner tube 1. Both the sealing ring 3 10 and the sealing ring 4 11 are made of rubber. When the sealing ring 3 10 and the sealing ring 4 11 are squeezed against each other, the inner tube 1 and the outer tube 3 will maintain good sealing and prevent hot water from leaking between the inner tube 1 and the outer tube 3. When one end of the inner tube 1 is connected to the intermediate tube 5 and one end of the outer tube 3 is connected to the three-way valve 2 14, the sealing ring 3 10 and the sealing ring 4 11 will squeeze against each other.

[0021] The end of the intermediate pipe 5 away from the inner pipe 1 is connected to a three-way valve 12, and the three-way valve 12 is connected to the inlet pipe 13. During normal heating, the water flows through the inlet pipe 13 and into the three-way valve 12, and then into the intermediate pipe 5.

[0022] One end of the outer pipe 3 is connected to a three-way valve 2 14, which is connected to the outlet pipe 15. A flushing pipe 16 is connected between the three-way valve 2 14 and the three-way valve 1 12. During normal heating, water flows through the outer pipe 3 into the three-way valve 2 14 and then flows backward through the outlet pipe 15. When it is necessary to flush the filter screen 404, the flushing pipe 16 is opened through the three-way valve 1 12, so that the hot water entering the three-way valve 1 12 cannot enter the intermediate pipe 5 but enters the flushing pipe 16.

[0023] The working principle of this utility model is as follows: During normal heating, water flows through the inlet pipe 13 into the three-way valve 12 and then into the intermediate pipe 5. The water in the intermediate pipe 5 flows into the inner pipe 1. When the hot water flowing in the inner pipe 1 enters the outer pipe 3 through the filter screen 404, the filter screen 404 can filter out impurities in the hot water. When the hot water flows in the outer pipe 3, it will drive the fan blade 403 to rotate. The rotation of the fan blade 403 will drive the rotating shaft 402 to rotate. The rotation of the rotating shaft 402 will drive the filter screen 404 to rotate, preventing the filter screen 404 from being stationary and reducing the amount of impurities adhering to the filter screen 404. After that, the water in the outer pipe 3 will pass through the three-way valve 14 and finally flow backward through the outlet pipe 15. When the filter screen 404 needs to be rinsed, the rinsing pipe 16 is opened and the intermediate pipe 5 is closed through the three-way valve 12, and the rinsing pipe 16 is opened and the outlet pipe 15 is closed through the three-way valve 2. At this time, the water in the inlet pipe 13 enters the rinsing pipe 16 through the three-way valve 12, and the water in the rinsing pipe 16 enters the outer pipe 3 through the three-way valve 2. The water in the outer pipe 3 flows into the inner pipe 1 and rinses the filter screen 404. The rinsed water enters the intermediate pipe 5. At the same time, the valve 7 is opened. Since both ends of the intermediate pipe 5 are higher than the middle position of the intermediate pipe 5, the water in the intermediate pipe 5 will gradually flow towards the middle and eventually be discharged from the drain pipe 6. When the filter assembly 4 needs to be disassembled for maintenance, the connecting fixing bolts are removed one by one. Then, the outer tube 3 can be slid along the inner tube 1 to shorten the distance between the inner tube 1 and the outer tube 3, so that the entire inner tube 1 and the outer tube 3 can be easily disassembled. Continuing to slide the outer tube 3 along the inner tube 1 will expose the entire filter assembly 4, making it convenient for operators to disassemble and maintain.

[0024] It should be noted that the inner pipe 1 and the intermediate pipe 5 are connected by flanges and fixing bolts, and the outer pipe 3 and the three-way valve 14 are also connected by flanges and fixing bolts.

[0025] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A removable filter for heating pipelines, comprising an inner tube (1), characterized in that: A limiting ring (2) is fixedly installed on the outer wall of the inner tube (1). An outer tube (3) is slidably connected to the outer side of the inner tube (1). A filter assembly (4) is installed on the inner tube (1). The filter assembly (4) filters the water flow. One end of the inner tube (1) is connected to an intermediate tube (5). A drain pipe (6) is connected to the middle position at the bottom of the intermediate tube (5). A valve (7) is installed at the bottom of the drain pipe (6).

2. A detachable filter for heating pipelines according to claim 1, characterized in that: Both ends of the intermediate tube (5) are higher than the middle position of the intermediate tube (5).

3. A detachable filter for heating pipelines according to claim 1, characterized in that: The filter assembly (4) includes a mounting bracket (401), which is fixedly mounted on the inner tube (1) by bolts. The mounting bracket (401) is rotatably mounted with a rotating shaft (402) through a sealed bearing. One end of the rotating shaft (402) is fixedly connected to a fan blade (403), and the other end of the rotating shaft (402) is fixedly connected to a filter screen (404).

4. A detachable filter for heating pipelines according to claim 3, characterized in that: A sealing ring 1 (8) is fixedly installed on the outer wall of the filter screen (404), and a sealing ring 2 (9) is movably fitted to the outer side of the sealing ring 1 (8). The sealing ring 2 (9) is embedded in the inner tube (1).

5. A detachable filter for heating pipelines according to claim 1, characterized in that: The outer wall of the inner tube (1) and the limiting ring (2) are both fixedly connected to the sealing ring three (10), and the inner wall of the outer tube (3) is fixedly installed with the sealing ring four (11), and the inner side of the sealing ring four (11) slides against the outer wall of the inner tube (1).

6. A detachable filter for heating pipelines according to claim 1, characterized in that: The end of the intermediate pipe (5) away from the inner pipe (1) is connected to the three-way valve (12), and the three-way valve (12) is connected to the water inlet pipe (13).

7. A detachable filter for heating pipelines according to claim 1, characterized in that: One end of the outer pipe (3) is connected to the second three-way valve (14), the second three-way valve (14) is connected to the outlet pipe (15), and a flushing pipe (16) is connected between the second three-way valve (14) and the first three-way valve (12).

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