Ultralow-temperature variable-frequency heating machine water tank filtering device

Abstract

The utility model discloses a water tank filtering device of an ultralow-temperature variable-frequency heating machine. The water tank filtering device comprises a clamping base, a semicircular sleeve piece, a clamping protrusion, a connecting sleeve, an extension pipe and a limiting sleeve. According to the ultra-low-temperature variable-frequency heating machine water tank filtering device, semicircular sleeve pieces are symmetrically arranged on the outer sides of clamping bases, clamping protrusions corresponding to the clamping bases are fixedly connected to the inner sides of the two ends of each semicircular sleeve piece, an extension pipe is slidably sleeved with a connecting sleeve, and a limiting sleeve is arranged on the outer sides of the semicircular sleeve pieces in a sleeving mode and slides in an attached mode; the inner pipe filled with the filter screen piece and the filter material layer is installed in the containing cavity of the two semicircular sleeve pieces, the two semicircular sleeve pieces are clamped and limited through the clamping protrusions and the clamping bases, the connecting sleeve and the limiting sleeve are arranged, the limiting sleeve wraps the outer sides of the semicircular sleeve pieces, the semicircular sleeve pieces are limited, and the limiting sleeve is prevented from sliding off from the semicircular sleeve pieces through the connecting sleeve. Therefore, the whole filter element structure is mounted and connected in a combined sleeving manner, and threaded rotation is not needed, so that the mounting operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of water tank inlet filters, specifically a water tank filtration device for ultra-low temperature variable frequency heating machines. Background Technology

[0002] Ultra-low temperature variable frequency heating units typically include a heat source (variable frequency heating and cooling unit), a buffer water tank, a cooling / heating circulation pump, a terminal circulation pump, a hydraulic distributor (for fan coil units), a manifold (for underfloor heating or radiators), terminals (fan coil units, underfloor heating, and radiators, etc.), and a thermostat. Their working principle involves utilizing low-grade heat energy from the air, exchanging it through components such as a compressor, evaporator, and heat exchanger to produce and utilize high-temperature heat energy. Specifically, the ultra-low temperature variable frequency heating unit uses a small amount of electricity as its driving force. The compressor circulates and absorbs low-temperature heat energy from the air, then heats and compresses this heat energy, converting it into high-temperature heat energy. This high-temperature heat energy is transferred to the cold water in the tank through heat exchange, then the hot water is transferred to the room, and finally, the room is heated through heating terminals such as underfloor heating, fan coil units, and radiators.

[0003] To prevent excessive scale buildup inside the buffer tank, a filter is typically installed at the tank's inlet to filter the circulating water, reducing impurities and improving water quality. However, most existing filters are threaded to the inlet and inlet pipe, requiring multiple turns of the thread for disassembly, which is inconvenient and prone to stripping after repeated disassembly. Therefore, a low-temperature variable frequency heating system water tank filtration device is proposed to optimize the aforementioned existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a water tank filtration device for ultra-low temperature variable frequency heating machines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A water tank filtration device for an ultra-low temperature variable frequency heating unit includes an inner tube installed between the water inlet and the inlet pipe of the water tank. The inner tube is vertically arranged, and both ends of the inner tube have embedding grooves. A filter screen adapted to the grooves is movably embedded in each groove. A filter media layer is filled inside the inner tube between the filter screens. A snap-fit ​​seat is provided on the outer sides of both the upper and lower ends of the inner tube. Semi-circular fittings are symmetrically provided on the outer sides of the snap-fit ​​seats, and the inner sides of both ends of the semi-circular fittings are fixed to the snap-fit ​​seats. The device has a locking protrusion that engages with and fits into a locking seat. The locking seat has an annular groove for the insertion and fitting of the locking protrusion. The two semi-circular components fit together and are sealed by compression, together wrapping around the outside of the inner tube. The inner side of the semi-circular components has a placement cavity that fits the inner tube. The top locking seat is fixedly connected to the extension tube. A connecting sleeve is slidably fitted on the extension tube. The bottom end of the connecting sleeve is fixedly connected to a limiting sleeve that fits the semi-circular components. The limiting sleeve is fitted onto the outside of the semi-circular components and slides in close contact.

[0007] As a further embodiment of this utility model: the top outer edge of the semi-circular kit is provided with a bevel, and the bottom inner edge of the limiting sleeve is also provided with a bevel.

[0008] As a further improvement of this utility model: two inner tubes are symmetrically arranged, a first tee pipe is provided below the bottom of the two inner tubes, and a second tee pipe is provided above the top of the two inner tubes.

[0009] As a further embodiment of this utility model: the first tee pipe is fixedly connected to the water inlet of the water tank, the second tee pipe is fixedly connected to the water inlet pipe, the bottom snap-fit ​​seat is fixedly connected to the corresponding port of the first tee pipe, and the extension pipe is fixedly connected to the corresponding port of the second tee pipe.

[0010] As a further improvement of this utility model, valves are fixedly installed at both ends of the inner pipes of the first tee pipe and the second tee pipe.

[0011] As a further improvement of this utility model: a stop ring is fixedly connected to the outer side of the top end of the extension tube, and a spring is provided between the stop ring and the connecting sleeve, with the spring sleeved on the outer side of the extension tube.

[0012] As a further improvement of this utility model: the embedding groove partially overlaps with the placement cavity, and the filter screen is supported by the inner wall of the top of the placement cavity.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, the inner tube filled with filter screen and filter media layer is installed in the placement cavity of two semi-circular kits. The two semi-circular kits are locked in place by the locking protrusion and the locking seat. The locking sleeve is wrapped around the outside of the semi-circular kit to limit the semi-circular kit. The locking sleeve prevents the locking sleeve from slipping off the semi-circular kit. Thus, the assembly of the entire filter element structure is installed and connected by a combination sleeve without the need for threaded rotation, making the installation operation more convenient.

[0015] 2. This utility model uses a first three-way pipe and a second three-way pipe in conjunction with a valve to switch the filter element structure that allows liquid to flow. This facilitates the replacement of the filter element structure when the filter screen inside the filter element structure is clogged or the filter media layer fails, thereby maintaining the water flow effect and avoiding downtime for replacement.

[0016] 3. This utility model uses a stop ring to support the spring and the spring to apply pressure to the connecting sleeve, so that the connecting sleeve drives the lower limit sleeve to be more stably fitted on the outside of the semi-circular kit, thereby improving the stability of the limit.

[0017] 4. In this utility model, the inner tube is placed in the placement cavity, the filter screen is limited by the inner wall of the placement cavity, and the filter media layer is limited and filled by the filter screen, thus forming an assembled installation effect. During maintenance, the filter screen and filter media layer can be directly removed for easy cleaning and replacement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a water tank filtration device for an ultra-low temperature variable frequency heating machine.

[0019] Figure 2 This is a partial structural explosion diagram of a water tank filtration device for an ultra-low temperature variable frequency heating machine.

[0020] Figure 3 This is a partial structural cross-sectional view of a water tank filtration device for an ultra-low temperature variable frequency heating machine.

[0021] In the diagram: 1. Water tank inlet; 2. Inlet pipe; 3. Inner pipe; 4. Embedded groove; 5. Snap-fit ​​seat; 6. Semi-circular kit; 7. Snap-fit ​​protrusion; 8. Placement cavity; 9. Extension pipe; 10. Connecting sleeve; 11. Limiting sleeve; 12. First tee pipe; 13. Second tee pipe; 14. Valve; 15. Stop ring; 16. Spring; 17. Filter screen; 18. Filter media layer. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-3 In this embodiment of the utility model, a water tank filtration device for an ultra-low temperature variable frequency heating machine includes an inner tube 3 installed between the water inlet 1 and the water inlet pipe 2 of the water tank of the ultra-low temperature variable frequency heating machine. The inner tube 3 is vertically arranged, and both ends of the inner tube 3 are provided with embedding grooves 4. Filter screens 17 adapted to the grooves 4 are movably embedded in each groove. The inner side of the inner tube 3 and between the filter screens 17 is filled with a filter media layer 18. The outer sides of the upper and lower ends of the inner tube 3 are provided with snap-fit ​​seats 5. Semicircular fittings 6 are symmetrically provided on the outer sides of the snap-fit ​​seats 5. The inner sides of both ends of the semicircular fittings 6 are fixedly connected with snap protrusions 7 corresponding to the snap-fit ​​seats 5. 7 is inserted into the card holder 5 and is in contact with the card holder 5. The card holder 5 is provided with an annular groove for inserting and fitting the protrusion 7. The two semi-circular kits 6 are pressed and sealed together, and together they wrap around the outside of the inner tube 3. The inner side of the semi-circular kit 6 is provided with a placement cavity 8 that is adapted to the inner tube 3. The top card holder 5 is fixedly connected to the extension tube 9. The extension tube 9 is slidably fitted with a connecting sleeve 10. The bottom end of the connecting sleeve 10 is fixedly connected with a limiting sleeve 11 that is adapted to the semi-circular kit 6. The limiting sleeve 11 is fitted on the outside of the semi-circular kit 6 and slides in close contact. The inner tube 3, the filter screen 17 and the filter material layer 18 constitute the filter element structure.

[0024] The inner tube 3, filled with filter screen 17 and filter media layer 18, is installed in the placement cavity 8 of the two semi-circular components 6. The two semi-circular components 6 are engaged and limited by the snap-fit ​​7 and the snap-fit ​​seat 5. With the setting of the connecting sleeve 10 and the limiting sleeve 11, the limiting sleeve 11 wraps around the outside of the semi-circular component 6 and limits the semi-circular component 6. The connecting sleeve 10 prevents the limiting sleeve 11 from slipping off the semi-circular component 6. Thus, the assembly of the entire filter element structure is installed and connected by a combination sleeve, without the need for threaded rotation, making the installation operation more convenient.

[0025] The top outer edge of the semicircular kit 6 is beveled, and the bottom inner edge of the limiting sleeve 11 is also beveled.

[0026] The bevel design makes it easier to align the limiting sleeve 11 with the semi-circular kit 6.

[0027] Two inner tubes 3 are symmetrically arranged. A first tee pipe 12 is provided below the bottom of the two inner tubes 3, and a second tee pipe 13 is provided above the top of the two inner tubes 3.

[0028] The first tee pipe 12 is fixedly connected to the water inlet 1 of the water tank, the second tee pipe 13 is fixedly connected to the water inlet pipe 2, the bottom snap-fit ​​seat 5 is fixedly connected to the corresponding port of the first tee pipe 12, and the extension pipe 9 is fixedly connected to the corresponding port of the second tee pipe 13.

[0029] Valves 14 are fixedly installed at both ends of the inner pipe 3 corresponding to the first tee pipe 12 and the second tee pipe 13.

[0030] By using the first three-way pipe 12 and the second three-way pipe 13 in conjunction with the valve 14, the filter element structure that allows liquid to flow can be switched. This facilitates the replacement of the filter element structure when the filter screen 17 inside the filter element structure is clogged or the filter media layer 18 fails, thereby maintaining the water flow effect and avoiding downtime for replacement.

[0031] A stop ring 15 is fixedly connected to the outer side of the top end of the extension tube 9. A spring 16 is provided between the stop ring 15 and the connecting sleeve 10. The spring 16 is sleeved on the outer side of the extension tube 9.

[0032] The stop ring 15 supports the spring 16, and the spring 16 applies pressure to the connecting sleeve 10, so that the connecting sleeve 10 drives the lower limit sleeve 11 to be more stably fitted on the outside of the semi-circular kit 6, thereby improving the stability of the limit.

[0033] The embedding groove 4 partially overlaps with the placement cavity 8, and the filter screen 17 is supported by the inner wall of the top of the placement cavity 8.

[0034] The inner tube 3 is placed in the placement cavity 8, the filter screen 17 is limited by the inner wall of the placement cavity 8, and the filter media layer 18 is limited and filled by the filter screen 17, thus forming a modular installation effect. During maintenance, the filter screen 17 and the filter media layer 18 can be directly removed for easy cleaning and replacement.

[0035] The working principle of this utility model is as follows:

[0036] In use, the first three-way pipe 12 and the second three-way pipe 13 are pre-installed at the ends of the water tank inlet 1 and the water inlet pipe 2, so that the ports of the first three-way pipe 12 and the second three-way pipe 13 correspond. At this time, the filter media layer 18 is filled into the inner tube 3 and the filter screen 17 is used to seal the two ends of the inner tube 3. The inner tube 3 is placed in the placement cavity 8 on a semi-circular kit 6. At this time, the filter screen 17 is confined in the embedding groove 4. The connecting sleeve 10 is slid up, which drives the limiting sleeve 11 to move, so that the two snap-fit ​​seats 5 are exposed. The two semi-circular kits 6 are then assembled between the two snap-fit ​​seats 5, so that the snap-fit ​​protrusion 7 snaps into the snap-fit ​​seat. 5. At this time, release the limiting sleeve 11. Under the action of gravity and the elastic force of the spring 16, the limiting sleeve 11 slides down. At the same time, push it with your hand to make the limiting sleeve 11 fit on the combined semi-circular kit 6, so that the connecting sleeve 10 abuts against the top of the semi-circular kit 6 to form a limit. At this time, switch the passage of the first three-way pipe 12 and the second three-way pipe 13 through the valve 14, so that one of the inner pipes 3 is filled with water, thereby achieving a filtration effect. When replacing the inner pipe 3, switch the passage of the first three-way pipe 12 and the second three-way pipe 13 through the valve 14, so that the other inner pipe 3 is filled with water, and the original inner pipe 3 is cut off, so that the replacement operation can be performed.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water tank filtration device for an ultra-low temperature variable frequency heating machine, comprising an inner pipe (3) installed between the water inlet (1) and the water inlet pipe (2) of the ultra-low temperature variable frequency heating machine water tank, characterized in that: The inner tube (3) is vertically arranged, and both ends of the inner tube (3) are provided with embedding grooves (4). Filter meshes (17) that are adapted to each groove (4) are movably embedded in each groove (4). Filter media (18) is filled inside the inner tube (3) and between the filter meshes (17). A snap-fit ​​seat (5) is provided on the outer sides of both the upper and lower ends of the inner tube (3). Semicircular fittings (6) are symmetrically provided on the outer sides of the snap-fit ​​seats (5). Snap protrusions (7) are fixedly connected to the inner sides of both ends of the semicircular fittings (6) corresponding to the snap-fit ​​seats (5). The card is inserted into the card holder (5) and together with the card holder (5) and the semi-circular kit (6), it wraps around the outside of the inner tube (3). The inner side of the semi-circular kit (6) is provided with a placement cavity (8) that is compatible with the inner tube (3). The top card holder (5) is fixedly connected to the extension tube (9). The extension tube (9) is slidably fitted with a connecting sleeve (10). The bottom end of the connecting sleeve (10) is fixedly connected with a limiting sleeve (11) that is compatible with the semi-circular kit (6). The limiting sleeve (11) is fitted around the outside of the semi-circular kit (6) and slides in close contact.

2. The ultra-low temperature variable frequency heating machine water tank filtration device according to claim 1, characterized in that: The top outer edge of the semicircular kit (6) is beveled, and the bottom inner edge of the limiting sleeve (11) is also beveled.

3. The ultra-low temperature variable frequency heating machine water tank filtration device according to claim 1, characterized in that: Two inner tubes (3) are symmetrically arranged. A first three-way pipe (12) is provided below the bottom of the two inner tubes (3), and a second three-way pipe (13) is provided above the top of the two inner tubes (3).

4. The ultra-low temperature variable frequency heating machine water tank filtration device according to claim 3, characterized in that: The first three-way pipe (12) is fixedly connected to the water inlet (1) of the water tank, the second three-way pipe (13) is fixedly connected to the water inlet pipe (2), the bottom snap-fit ​​seat (5) is fixedly connected to the corresponding port of the first three-way pipe (12), and the extension pipe (9) is fixedly connected to the corresponding port of the second three-way pipe (13).

5. The ultra-low temperature variable frequency heating machine water tank filtration device according to claim 3, characterized in that: Valves (14) are fixedly installed at both ends of the inner pipe (3) of the first tee pipe (12) and the second tee pipe (13).

6. The ultra-low temperature variable frequency heating machine water tank filtration device according to claim 1, characterized in that: A stop ring (15) is fixedly connected to the outer side of the top end of the extension tube (9). A spring (16) is provided between the stop ring (15) and the connecting sleeve (10). The spring (16) is sleeved on the outer side of the extension tube (9).

7. The ultra-low temperature variable frequency heating machine water tank filtration device according to claim 1, characterized in that: The embedding groove (4) partially overlaps with the placement cavity (8).

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