A bottom-mounted dirt separator for a heating ventilation system

Abstract

The utility model relates to bottom -placed dirt separator technical field discloses a bottom -placed dirt separator for heating ventilation system convenient to blowdown, including dirt separator, the dirt separator bottom fixedly connected with support leg, the dirt separator bottom fixedly connected with blowdown pipe, the dirt separator top is provided with the airtight cover, the dirt separator inside fixedly connected with the inlet pipe, the dirt separator inside is provided with the filter bowl, the filter bowl inside is provided with cleaning assembly, the cleaning assembly includes the scraper, the scraper outer wall sliding connection in the filter bowl inside, the airtight cover top fixedly connected with motor, motor output area fixedly connected with the connecting rod. In the utility model, through the drive of motor to stirring rod and fixed column and cooperate spring no.

Description

Technical Field

[0001] This utility model relates to the technical field of bottom-mounted dirt separators, and in particular to a bottom-mounted dirt separator for HVAC systems that facilitates drainage. Background Technology

[0002] During the operation of HVAC systems, the cleanliness of the water directly affects the system's stability and lifespan. Bottom-mounted sludge filters, as key equipment for ensuring system water quality, intercept impurities such as silt, rust, and suspended solids in the water, preventing these contaminants from causing wear or blockage to core components such as water pumps and heat exchangers. With the increasing scale of buildings and the growing complexity of HVAC systems, the efficient operation of sludge filters has become an important prerequisite for ensuring indoor environmental comfort and energy efficiency.

[0003] Currently, most bottom-mounted screen cleaners for HVAC systems on the market adopt a filter-interception structure. Their working principle is that as water flows through the filter, impurities are blocked and gradually deposited in a collection tank at the bottom of the cleaner. Some cleaners use an inclined angle or backwash water during drainage to assist in removing impurities. However, these cleaners mainly rely on the kinetic energy of the water flow and gravity to separate and remove impurities, lacking a mechanism for actively cleaning the filter. During the process of impurity interception, impurities continuously accumulate on the filter over time.

[0004] However, existing filter screens lack effective means for actively cleaning the filter screen. With prolonged filtration times, impurities accumulate, easily causing clogging. Once clogged, the filter screen significantly increases water flow resistance, leading to a decrease in system flow rate. This not only reduces the heat exchange efficiency of the HVAC system but also increases energy consumption. Furthermore, filter clogging can cause system pressure imbalances, affecting normal equipment operation and even requiring frequent shutdowns for manual cleaning, increasing maintenance costs and manpower burden, and severely impacting the operational stability and economy of the HVAC system. Therefore, a bottom-mounted filter screen for HVAC systems with easy drainage is proposed to address these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a bottom-mounted dirt separator for HVAC systems that facilitates sewage discharge, aiming to improve the problem of clogging caused by long filtration times in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A bottom-mounted dirt separator for HVAC systems, which facilitates sewage discharge, includes a dirt separator, a support leg fixedly connected to the bottom of the dirt separator, a sewage pipe fixedly connected to the bottom of the dirt separator, a sealed cover provided on the top of the dirt separator, a water inlet pipe fixedly connected inside the dirt separator, a filter cartridge provided inside the dirt separator, and a cleaning component provided inside the filter cartridge.

[0008] The cleaning assembly includes a scraper, the outer wall of which is slidably connected to the inside of the filter cartridge. A motor is fixedly connected to the top of the sealed cover. A connecting rod is fixedly connected to the output of the motor. A stirring rod is slidably connected to the outer wall of the connecting rod. A disassembly assembly is provided on the outer wall of the connecting rod. A ring-shaped array of fixing columns is fixedly connected to the outer wall of the stirring rod. A connecting column is fixedly connected to the outer wall of the scraper. A limiting disc is fixedly connected to one end of the fixing column. The outer wall of the limiting disc is slidably connected to the inside of the connecting column. A fitting assembly is provided inside the connecting column.

[0009] As a further description of the above technical solution:

[0010] The bonding assembly includes a spring, the outer wall of which is disposed inside the connecting post. One end of the spring is fixedly connected to the outer wall of the limiting disc, and the other end of the spring is fixedly connected to the inner wall of the connecting post.

[0011] As a further description of the above technical solution:

[0012] The assembly / disassembly assembly includes a locking post, the outer wall of which is fixedly connected to the outer wall of the connecting rod.

[0013] As a further description of the above technical solution:

[0014] The stirring rod has a groove inside, and the outer wall of the clamping post is slidably connected to the inside of the groove.

[0015] As a further description of the above technical solution:

[0016] The stirring rod has an L-shaped groove inside, and the bottom of the connecting rod is rotatably connected to a rotating magnet.

[0017] As a further description of the above technical solution:

[0018] The stirring rod has a groove inside, and the outer wall of the connecting rod is slidably connected to the inside of the groove.

[0019] As a further description of the above technical solution:

[0020] A second spring is installed inside the stirring rod. The top of the second spring is located at the bottom of the rotating magnet, and the bottom of the second spring is fixedly connected to the inner wall of the stirring rod.

[0021] As a further description of the above technical solution:

[0022] A flange is fixedly connected to the top of the dirt separator, and the inner wall of the flange is fixedly connected to the outer wall of the sealed cover.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the scraper achieves its rotation function by starting a motor. When the motor is started, the motor drives the stirring rod and the fixed column, and in conjunction with the spring, the scraper is made to rotate inside the filter cylinder, thereby scraping the inner wall of the filter cylinder to maintain its throughput. This solves the problem of clogging when the filtration time is long and improves the speed of filtration.

[0025] 2. In this utility model, the locking column achieves its movement function by pushing the stirring rod. When the stirring rod is pushed, the stirring rod drives the locking groove and the L-shaped groove, and in conjunction with the second spring, the locking column slides inside the locking groove, thereby facilitating the disassembly and assembly of the stirring rod, making it convenient for maintenance, replacement and movement. This solves the problem that the existing method of disassembling and assembling the stirring rod requires multiple tools and is not convenient to disassemble, thus improving the convenience of disassembling and assembling the stirring rod. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a bottom-mounted dirt collector for HVAC systems that facilitates sewage discharge, as proposed in this utility model.

[0027] Figure 2 This utility model provides a schematic diagram of the internal structure of a bottom-mounted dirt separator for easy sewage discharge in a heating, ventilation, and air conditioning system.

[0028] Figure 3 This utility model provides a schematic diagram of the scraper of a bottom-mounted dirt separator for easy sewage discharge in a heating, ventilation, and air conditioning system.

[0029] Figure 4 This utility model provides a schematic diagram of the internal structure of the connecting column of a bottom-mounted dirt separator for easy sewage discharge in a heating, ventilation, and air conditioning system.

[0030] Figure 5 This utility model provides a schematic diagram of the clamping column of a bottom-mounted dirt separator for easy sewage discharge in a heating, ventilation, and air conditioning system.

[0031] Figure 6 This is a schematic diagram of the internal structure of the stirring rod of a bottom-mounted dirt separator for easy sewage discharge in a heating, ventilation, and air conditioning system, as proposed in this utility model.

[0032] Legend:

[0033] 1. Stain remover; 2. Support leg; 3. Drain pipe; 4. Inlet pipe; 5. Flange; 6. Motor; 7. Filter cartridge; 8. Stirring rod; 9. Sealing cover; 10. Scraper; 11. Connecting column; 12. Fixing column; 13. Connecting rod; 14. Limiting disc; 15. Spring 1; 16. L-shaped groove; 17. Locking column; 18. Locking groove; 19. Spring 2; 20. Rotating magnet; 21. Slide groove. Detailed Implementation

[0034] 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.

[0035] Reference Figures 1-4 This utility model provides an embodiment of a bottom-mounted dirt separator for HVAC systems that facilitates sewage discharge. The dirt separator includes a dirt separator 1. A support leg 2 is fixedly connected to the bottom of the dirt separator 1. The support leg 2 is made of carbon steel and hot-dip galvanized, providing excellent corrosion resistance and stability. A single support leg 2 has a load-bearing capacity of 500 kg, ensuring the dirt separator 1 remains stable during operation. A drain pipe 3 is fixedly connected to the bottom of the dirt separator 1. The drain pipe 3 is made of stainless steel with a smooth inner wall. One end of the drain pipe connects to the dirt collection area at the bottom of the dirt separator 1, and the other end extends to the system's sewage discharge point. This pipe is used to periodically discharge impurities such as mud, rust, and other deposits at the bottom of the dirt separator 1, ensuring system cleanliness. A sealed cover 9 is provided on the top of the dirt separator 1. A water inlet pipe 4 is fixedly connected inside the dirt separator 1. A filter cartridge 7 is installed inside the dirt separator 1, and a cleaning component is installed inside the filter cartridge 7.

[0036] The cleaning component includes a scraper 10, which has an arc-shaped structure and is made of 3mm thick nylon material. Its outer surface is frosted to increase friction with the inner wall of the filter cartridge 7, thus scraping away impurities adhering to the inner wall of the filter cartridge 7, preventing filter clogging, and improving filtration efficiency. The outer wall of the scraper 10 is slidably connected to the inside of the filter cartridge 7. A motor 6 is fixedly connected to the top of the sealed cover 9. A connecting rod 13 is fixedly connected to the output of the motor 6. A stirring rod 8 is slidably connected to the outer wall of the connecting rod 13. A disassembly assembly is provided on the outer wall of the connecting rod 13. The outer wall of the stirring rod 8 is fixedly connected to a ring array of fixed columns 12, and the outer wall of the scraper 10 is fixedly connected to a connecting column 11. One end of the fixed column 12 is fixedly connected to a limiting disk 14, and the outer wall of the limiting disk 14 is slidably connected to the inside of the connecting column 11. The connecting column 11 is provided with a bonding component, which includes a spring 15. The outer wall of the spring 15 is located inside the connecting column 11, one end of the spring 15 is fixedly connected to the outer wall of the limiting disk 14, and the other end of the spring 15 is fixedly connected to the inner wall of the connecting column 11.

[0037] Specifically, in the wastewater purification process, the inlet pipe 4 serves as the initial channel for wastewater introduction, stably injecting the wastewater to be treated into the filter cartridge 1. The core filtration component 7 inside the filter cartridge 1 uses a high-precision stainless steel filter screen to efficiently intercept impurities such as silt and suspended solids in the wastewater. The initially purified water flows out through the drain outlet and enters the subsequent treatment stage. However, as the filtration process continues, impurities accumulate on the surface of the filter cartridge 7, easily causing blockage problems. At this time, the motor 6 at the top of the filter cartridge 1 plays a crucial role. After the motor 6 is started, its powerful force is transmitted through the drive shaft, driving the connecting rod 13 to rotate at a constant speed, which in turn drives the stirring rod 8 to rotate, causing the scraper 10 to move in a circular motion along the inner wall of the filter cartridge 7. During rotation, the scraper 10 scrapes and cleans stubborn impurities adhering to the inner wall of the filter cartridge 7, effectively preventing clogging. At the same time, the spring 15 is located inside the connecting rod 13. Utilizing its own compression and rebound characteristics, it continuously provides pressure to the scraper 10 to adhere tightly to the inner wall of the filter cartridge 7, ensuring that the scraper 10 is always in close contact with the inner wall of the filter cartridge 7. This significantly improves the accuracy of impurity scraping and cleaning efficiency, ensuring the stable and efficient operation of the dirt separator 1.

[0038] Reference Figure 1 , Figure 5 and Figure 6 The disassembly and assembly components include a retaining post 17, which is a cylindrical structure made of high-hardness steel and hardened. Its outer wall is vertically fixed to the outer wall of the connecting rod 13, and it engages with the retaining groove 18 inside the stirring rod 8 to position and fix the stirring rod 8. The outer wall of the retaining post 17 is fixedly connected to the outer wall of the connecting rod 13. The stirring rod 8 has a retaining groove 18 inside, and the outer wall of the retaining post 17 is slidably connected inside the retaining groove 18. The stirring rod 8 has an L-shaped groove 16 inside, which consists of a horizontal groove and a vertical groove, and communicates with the retaining groove 18. Its shape and size are precisely designed to guide the retaining post 17 to change its sliding direction, enabling the disassembly of the stirring rod 8. A rotating magnet 20 is rotatably connected to the bottom of the connecting rod 13. The stirrer 8 has a groove 21 inside, and the outer wall of the connecting rod 13 is slidably connected to the groove 21. The stirrer 8 has a spring 19 inside, the top of the spring 19 is set at the bottom of the rotating magnet 20, and the bottom of the spring 19 is fixedly connected to the inner wall of the stirrer 8. The top of the separator 1 is fixedly connected to a flange 5, and the inner wall of the flange 5 is fixedly connected to the outer wall of the sealing cover 9. The flange 5 is made of carbon steel and is galvanized. Its inner wall is firmly fixed to the outer wall of the sealing cover 9 by welding. The flange 5 is bolted to the external pipe to form a reliable sealing connection structure, which is used to realize the connection and sealing of the separator 1 and the HVAC system pipes to ensure that there is no leakage during system operation. At the same time, it is convenient to disassemble and install the sealing cover 9, and to facilitate the inspection and maintenance of the separator 1.

[0039] Specifically, as the usage time of the separator 1 increases, components such as the stirring rod 8 and scraper 10 will experience wear and tear, and impurities will become entangled due to long-term operation, requiring timely maintenance and replacement. At this time, the operator only needs to hold the stirring rod 8 and push it smoothly along the axial direction. The pre-designed slot 18 and L-shaped groove 16 inside the stirring rod 8 become the key channels. During the pushing process, the locking post 17 will gradually slide out from the slot 18 and move along the trajectory of the L-shaped groove 16. Simultaneously, the displacement of the stirring rod 8 will compress the second spring 19, causing the rotating magnet 20 to slide within the slide groove 21, making space for subsequent operations. Once the locking post 17 has moved to the appropriate position, rotating the stirring rod 8 will allow the locking post 17 to reach the slide outlet. Releasing the stirring rod 8 at this point causes the second spring 19 to quickly rebound, and the resulting elastic force pushes the stirring rod 8 away from the main body of the separator 1, enabling convenient disassembly for deep cleaning and component inspection. When reinstalling after maintenance, align the stirring rod 8 with the installation position and gently push it in. Due to the rotational connection characteristics, the rotating magnet 20 will not cause twisting interference to the second spring 19. Spring 19 rebounds again, precisely engaging the locking post 17 into the slot 18, completing the rapid fixation of the stirring rod 8. The entire process does not require the use of complex tools such as wrenches and screwdrivers, greatly improving maintenance efficiency and reducing downtime.

[0040] Working principle: When treating sewage, sewage is injected into the filter 1 through the inlet pipe 4, filtered through the filter cartridge 7, and then discharged through the drain outlet. At the same time, the motor 6 can be started, which drives the connecting rod 13 to rotate, and then drives the stirring rod 8 to rotate, thereby driving the scraper 10 to rotate on the inner wall of the filter cartridge 7 to scrape the inner wall and avoid blockage. At the same time, the compression and rebound of the spring 15 keeps the scraper 10 in contact with the inner wall of the filter cartridge 7, improving the accuracy of scraping.

[0041] Additionally, when the usage time is long, the stirring rod 8 can be pushed, which will cause the internal slot 18 and L-shaped groove 16 to slide, allowing the locking post 17 to slide out from the slot 18 into the L-shaped groove 16. At the same time, pushing will compress the second spring 19 and cause the rotating magnet 20 to slide inside the slide groove 21. Then, the stirring rod 8 can be rotated to move the locking post 17 to the slide outlet. After that, the stirring rod 8 can be released, and the stirring rod 8 can be removed for maintenance by the spring 19 rebounding. Then, it can be put back. At the same time, because the rotating magnet 20 is a rotating connection, it avoids twisting the spring 19. The spring 19 rebounds and locks the locking post 17 into the slot 18 for fixation.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A bottom-mounted dirt separator for easy drainage in HVAC systems, comprising a dirt separator (1), characterized in that: The bottom of the dirt remover (1) is fixedly connected to a support leg (2), the bottom of the dirt remover (1) is fixedly connected to a drain pipe (3), the top of the dirt remover (1) is provided with a sealed cover (9), the inside of the dirt remover (1) is fixedly connected to a water inlet pipe (4), the inside of the dirt remover (1) is provided with a filter cartridge (7), and the inside of the filter cartridge (7) is provided with a cleaning component. The cleaning assembly includes a scraper (10), the outer wall of which is slidably connected to the inside of the filter cartridge (7). A motor (6) is fixedly connected to the top of the sealed cover (9). A connecting rod (13) is fixedly connected to the output of the motor (6). A stirring rod (8) is slidably connected to the outer wall of the connecting rod (13). A disassembly assembly is provided on the outer wall of the connecting rod (13). A fixed column (12) in a ring array is fixedly connected to the outer wall of the stirring rod (8). A connecting column (11) is fixedly connected to the outer wall of the scraper (10). A limiting disc (14) is fixedly connected to one end of the fixed column (12). The outer wall of the limiting disc (14) is slidably connected to the inside of the connecting column (11). A fitting assembly is provided inside the connecting column (11).

2. A bottom-mounted dirt separator for HVAC systems with easy sewage discharge as described in claim 1, characterized in that: The bonding assembly includes a spring (15), the outer wall of which is disposed inside the connecting post (11), one end of which is fixedly connected to the outer wall of the limiting disc (14), and the other end of which is fixedly connected to the inner wall of the connecting post (11).

3. A bottom-mounted sludge collector for HVAC systems with easy sewage discharge according to claim 2, characterized in that: The assembly / disassembly assembly includes a locking post (17), the outer wall of which is fixedly connected to the outer wall of the connecting rod (13).

4. A bottom-mounted dirt separator for HVAC systems with easy sewage discharge as described in claim 3, characterized in that: The stirring rod (8) has a slot (18) inside, and the outer wall of the locking post (17) is slidably connected to the slot (18).

5. A bottom-mounted dirt separator for HVAC systems with easy sewage discharge according to claim 4, characterized in that: The stirring rod (8) has an L-shaped groove (16) inside, and the bottom of the connecting rod (13) is rotatably connected to a rotating magnet (20).

6. A bottom-mounted dirt separator for HVAC systems with easy sewage discharge according to claim 5, characterized in that: The stirring rod (8) has a groove (21) inside, and the outer wall of the connecting rod (13) is slidably connected to the groove (21).

7. A bottom-mounted dirt separator for HVAC systems with easy sewage discharge according to claim 6, characterized in that: The stirring rod (8) is equipped with a second spring (19), the top of the second spring (19) is located at the bottom of the rotating magnet (20), and the bottom of the second spring (19) is fixedly connected to the inner wall of the stirring rod (8).

8. A bottom-mounted dirt separator for HVAC systems with easy sewage discharge according to claim 1, characterized in that: The top of the dirt remover (1) is fixedly connected to a flange (5), and the inner wall of the flange (5) is fixedly connected to the outer wall of the sealed cover (9).

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