Pressurizing and exhausting device for circulating water system of air conditioner

Abstract

The utility model relates to the technical field of air-conditioning water systems, in particular to an air-conditioning circulating water system pressurizing and exhausting device which comprises an expansion water tank. The other end of the main pipeline is fixedly connected with the upper end of the water return tank; the side wall of the expansion water tank is connected with a pressurizing exhaust mechanism; a detachable filtering mechanism is arranged on the upper side of the pressurizing and exhausting mechanism and is connected to the side wall of the main pipeline; the pressurizing exhaust mechanism comprises a branch pipeline I, a main pipeline valve I, a pressurizing pump, an inlet valve and an outlet valve; the upper and lower ends of the branch pipeline I are fixedly connected with the right end of the main pipeline; the main pipeline valve I is fixedly connected to the side wall of the main pipeline; the inlet valve and the outlet valve are fixedly connected with one side wall of the branch pipeline; by controlling the opening and closing of the main pipeline valve I, the inlet valve and the outlet valve and cooperating with the periodical starting of the booster pump, the circulating water is pressurized at regular intervals, and the phenomenon that the refrigeration or heating effect of the air conditioner is influenced due to bubble retention in the main pipeline is avoided.

Description

[Technical Field]

[0001] This utility model relates to the field of air conditioning water system technology, specifically to a pressurization and exhaust device for an air conditioning circulating water system. [Background Technology]

[0002] In modern building environmental control, air conditioning water systems occupy a crucial position. With the acceleration of urbanization and the continuous expansion of building scale, people's requirements for indoor comfort are increasing, leading to the widespread application of air conditioning water systems.

[0003] Air conditioning is widely used in industry and daily life. To maintain a stable positive pressure in the air conditioning circulating water system, an expansion tank is typically installed on the roof. This tank is directly connected to the return water tank of the air conditioning circulating water system via water pipes. During operation, pressure fluctuations in the air conditioning circulating water system can generate air bubbles in the pipes, especially when the system is first turned on. When the rooftop expansion tank is under low water pressure, it cannot expel the air bubbles from the pipes, causing air to become trapped and forming an "airlock," which will seriously affect the cooling or heating performance of the air conditioner. To remove the "airlock," the height of the expansion tank can be increased to raise the water level and thus increase the pressure inside the tank. However, placing the expansion tank on the roof and raising it not only increases construction costs but also negatively impacts the building's load-bearing capacity and the aesthetics of the roof.

[0004] Based on this, the present invention designs a pressurization and exhaust device for an air conditioning circulating water system to solve the above problems. [Utility Model Content]

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a pressurization and exhaust device for an air conditioning circulating water system.

[0006] To achieve the above objectives, a pressurization and exhaust device for an air conditioning circulating water system is designed, including an expansion tank;

[0007] The expansion tank is connected to the return water tank through a main pipe; one end of the main pipe is fixedly connected to the lower end of the expansion tank, and the other end of the main pipe is fixedly connected to the upper end of the return water tank; a pressurization and venting mechanism for pressurizing the return water tank is connected to the side wall of the expansion tank; a disassembly and assembly filter mechanism for filtering the circulating water inside the main pipe is provided on the upper side of the pressurization and venting mechanism, and the disassembly and assembly filter mechanism is connected to the side wall of the main pipe.

[0008] The pressurized exhaust mechanism includes a branch pipe, a main pipe valve, a booster pump, an inlet valve, and an outlet valve. The upper and lower ends of the branch pipe are fixedly connected to the right end of the main pipe. The main pipe valve is fixedly connected to the side wall of the main pipe. The booster pump is fixedly connected to the side wall of the branch pipe. An inlet valve is provided on the upper side of the branch pipe, and an outlet valve is provided on the lower side of the branch pipe. Both the inlet valve and the outlet valve are fixedly connected to the side wall of the branch pipe.

[0009] Furthermore, the disassembly and assembly filtration mechanism includes a second branch pipe, a second main pipe valve, a branch pipe valve, and a filter assembly. The upper and lower ends of the second branch pipe are fixedly connected to the right end of the main pipe. The second main pipe valve is fixedly connected to the side wall of the main pipe. The side wall of the second branch pipe is fixedly connected to the branch pipe valve. Filter assemblies for filtering the circulating water inside the main pipe are provided on the lower side of both the second main pipe valve and the branch pipe valve. The filter assembly on the left side is fixedly connected to the side wall of the main pipe, and the filter assembly on the right side is fixedly connected to the side wall of the second branch pipe.

[0010] Furthermore, the filter assembly includes a connecting cylinder, a fixing ring block, a filter screen, a fixing cylinder, a telescopic cylinder, and a limiting component. The lower end of the connecting cylinder is threadedly connected to the lower main pipe, and the upper end of the connecting cylinder is fixedly connected to the fixing ring block. The filter screen is fixedly connected to the inner wall of the fixing ring block. The fixing cylinder is fixedly connected to the upper end of the fixing ring block. The outer wall of the fixing cylinder is fitted with a telescopic cylinder. A limiting component is provided on the lower side of the telescopic cylinder, and the upper end of the telescopic cylinder is threadedly connected to the upper main pipe.

[0011] Furthermore, the limiting component includes an outer ring block and an inner ring block, with the outer ring block fixedly connected to the upper end of the fixed cylinder and the inner ring block fixedly connected to the lower end of the inner wall of the telescopic cylinder.

[0012] Furthermore, a leak-proof rubber ring is fixedly connected to the lower end of the outer ring block.

[0013] Furthermore, a water-proof rubber ring is fixedly connected to the lower end of the fixing ring block.

[0014] Furthermore, the main pipeline valve 1, the inlet valve, and the outlet valve are all electric valves.

[0015] Furthermore, the booster pump is configured to start periodically.

[0016] Compared with the prior art, this utility model filters the circulating water by disassembling and assembling a filter mechanism, preventing impurities carried by the circulating water from clogging the pipes and causing air conditioning equipment malfunctions. By controlling the opening and closing of the main pipe valve, inlet valve, and outlet valve, and coordinating the periodic start of the booster pump, the circulating water is periodically pressurized, preventing air bubbles from accumulating in the main pipe and affecting the cooling or heating effect of the air conditioner. When the booster pump needs to be repaired, the main pipe valve is opened and the inlet and outlet valves are closed, facilitating the repair of the booster pump without affecting the operation of the circulating water system. [Image Description]

[0017] Figure 1 The three-dimensional representation of this utility model Figure 1 ;

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3 The three-dimensional representation of this utility model Figure 2 ;

[0020] Figure 4 The explosion of the filter assembly of this utility model Figure 1 ;

[0021] Figure 5 The explosion of the filter assembly of this utility model Figure 2 ;

[0022] In the diagram: 10. Expansion tank; 11. Main pipe; 12. Return water tank; 2. Pressure boosting and exhaust mechanism; 21. Branch pipe one; 22. Main pipe valve one; 23. Booster pump; 24. Inlet valve; 25. Outlet valve; 3. Filter assembly / disassembly mechanism; 31. Branch pipe two; 32. Main pipe valve two; 33. Branch pipe valve; 34. Filter assembly; 341. Connecting cylinder; 342. Fixing ring block; 343. Filter screen; 344. Fixing cylinder; 346. Telescopic cylinder; 347. Outer ring block; 348. Inner ring block. [Detailed Implementation]

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0024] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-5 A pressurization and exhaust device for an air conditioning circulating water system, comprising an expansion tank 10;

[0025] The expansion tank 10 is connected to the return water tank 12 through the main pipe 11; one end of the main pipe 11 is fixedly connected to the lower end of the expansion tank 10, and the other end of the main pipe 11 is fixedly connected to the upper end of the return water tank 12; the side wall of the expansion tank 10 is connected to a pressurization and exhaust mechanism 2 for pressurizing the return water tank 12; a disassembly and assembly filter mechanism 3 for filtering the circulating water inside the main pipe 11 is provided on the upper side of the pressurization and exhaust mechanism 2, and the disassembly and assembly filter mechanism 3 is connected to the side wall of the main pipe 11.

[0026] The booster exhaust mechanism 2 includes a branch pipe 21, a main pipe valve 22, a booster pump 23, an inlet valve 24, and an outlet valve 25. The upper and lower ends of the branch pipe 21 are fixedly connected to the right end of the main pipe 11. The main pipe valve 22 is fixedly connected to the side wall of the main pipe 11. The booster pump 23 is fixedly connected to the side wall of the branch pipe 21 and is set to start periodically, for example, starting for one minute every hour and then shutting down. An inlet valve 24 is provided on the upper side of the branch pipe 21, and an outlet valve 25 is provided on the lower side of the branch pipe 21. Both the inlet valve 24 and the outlet valve 25 are fixedly connected to the side wall of the branch pipe 21. The main pipe valve 22, the inlet valve 24, and the outlet valve 25 are all electric valves.

[0027] In this invention, as the circulating water flows from the expansion tank 10 through the inner side of the main pipe 11 and finally to the return water tank 12, it is filtered by the disassembly and assembly filter mechanism 3. The booster pump 23 periodically starts to pressurize the circulating water. When the booster pump 23 starts, the main pipe valve 22 is closed and the inlet valve 24 and outlet valve 25 are opened. At this time, the circulating water flows through the branch pipe 21 and is pressurized by the booster pump 23. After the booster pump 23 is turned off, the main pipe valve 22 is opened and the inlet valve 24 and outlet valve 25 are closed. At this time, the circulating water flows through the main pipe valve 22. When the booster pump 23 needs to be repaired, the main pipe valve 22 is opened and the inlet valve 24 and outlet valve 25 are closed to facilitate the repair of the booster pump 23.

[0028] In this invention, the circulating water is filtered by the disassembly and assembly of the filter mechanism 3 to prevent impurities carried by the circulating water from clogging the pipes and causing air conditioning equipment malfunctions. By controlling the opening and closing of the main pipe valve 22, the inlet valve 24, and the outlet valve 25, and in conjunction with the periodic start of the booster pump 23, the circulating water is periodically pressurized to prevent air bubbles from accumulating in the main pipe 11 and affecting the cooling or heating effect of the air conditioner. When the booster pump 23 needs to be repaired, the main pipe valve 22 is opened and the inlet valve 24 and the outlet valve 25 are closed, which facilitates the repair of the booster pump 23 without affecting the operation of the circulating water system.

[0029] The disassembly and assembly filter mechanism 3 includes a second branch pipe 31, a second main pipe valve 32, a second branch pipe valve 33, and a filter assembly 34. The upper and lower ends of the second branch pipe 31 are fixedly connected to the right end of the main pipe 11. The second main pipe valve 32 is fixedly connected to the side wall of the main pipe 11. The second branch pipe valve 33 is fixedly connected to the side wall of the second branch pipe 31. The second main pipe valve 32 and the second branch pipe valve 33 are both provided with filter assemblies 34 for filtering the circulating water inside the main pipe 11. The filter assembly 34 on the left side is fixedly connected to the side wall of the main pipe 11, and the filter assembly 34 on the right side is fixedly connected to the side wall of the second branch pipe 31.

[0030] In this invention, when the main pipe valve 2 32 is opened and the branch pipe valve 33 is closed, the circulating water flows from the expansion tank 10 through the inside of the main pipe 11 and finally to the return water tank 12. During this process, the circulating water flows through the main pipe valve 2 32 and is filtered by the filter assembly 34 on the side wall of the main pipe 11. When it is necessary to repair the filter assembly 34 on the side wall of the main pipe 11, the main pipe valve 2 32 is closed and the branch pipe valve 33 is opened. The circulating water flows through the branch pipe valve 33 and is filtered by the filter assembly 34 on the side wall of the branch pipe 2 31. At this time, the filter assembly 34 on the side wall of the main pipe 11 can be disassembled for repair without affecting the operation of the circulating water system.

[0031] The filter assembly 34 includes a connecting cylinder 341, a fixing ring block 342, a filter screen 343, a fixing cylinder 344, a telescopic cylinder 346, an outer ring block 347, and an inner ring block 348. The lower end of the connecting cylinder 341 is threaded to the lower main pipe 11, and the upper end of the connecting cylinder 341 is fixedly connected to the fixing ring block 342. The inner wall of the fixing ring block 342 is fixedly connected to the filter screen 343. The upper end of the fixing ring block 342 is fixedly connected to the fixing cylinder 344. The upper end of the fixing cylinder 344 is fixedly connected to the outer ring block 347. The outer wall of the fixing cylinder 344 is fitted with a telescopic cylinder 346. The lower end of the inner side wall of the telescopic cylinder 346 is fixedly connected to the inner ring block 348, and the upper end of the telescopic cylinder 346 is threaded to the upper main pipe 11. The lower ends of the outer ring block 347 and the lower ends of the fixing ring block 342 are both fixedly connected to leak-proof rubber rings.

[0032] In this invention, the branch pipe valve 33 is opened and the main pipe valve 2 32 is closed. Circulating water flows through the branch pipe 2 31 and through the branch pipe valve 33. At this time, the telescopic cylinder 346 is rotated to release the lock between the telescopic cylinder 346 and the upper main pipe 11. The telescopic cylinder 346 slides downward along the fixed cylinder 344. At this time, the connecting cylinder 341 is rotated to release the lock between the connecting cylinder 341 and the lower main pipe 11, facilitating the rinsing and maintenance of the filter screen 343. The lower end of the connecting cylinder 341 is aligned with the lower main pipe 11, and the connecting cylinder 341 is rotated. The connecting cylinder 341 is threadedly connected to the lower main pipe 11, and the connecting cylinder 341 drives the fixed ring block. 342 and filter screen 343 move downwards, and filter screen 343 drives rubber ring to move downwards until the lower end of rubber ring abuts against the upper end of the lower main pipe 11. At this time, the telescopic cylinder 346 is pulled upwards to align the telescopic cylinder 346 with the upper main pipe 11 and rotate the telescopic cylinder 346. The telescopic cylinder 346 is threadedly connected to the upper main pipe 11 and the telescopic cylinder 346 drives the inner ring block 348 to move upwards. When the upper end of the inner ring block 348 abuts against the lower end of the rubber ring of the outer ring block 347, the filter screen 343 can be disassembled, cleaned and repaired, and the airtightness of the main pipe 11 is ensured to prevent water leakage, while not affecting the operation of the circulating water system and the filtration effect of the circulating water.

[0033] In this invention, by rotating the connecting cylinder 341 and the fixed cylinder 344, it is convenient to disassemble, clean, and repair the filter screen 343, avoiding the blockage of the filter screen 343 by impurities at the upper end of the filter screen 343, which would cause pipe blockage. Opening the branch pipe valve 33 and closing the main pipe valve 2 32 allows circulating water to flow through the branch pipe 2 31 and through the branch pipe valve 33. The circulating water is also filtered through the filter screen 343 below the branch pipe valve 33, which facilitates the disassembly and assembly of the filter screen 343 below the main pipe valve 2 32 without affecting the operation of the circulating water system or the filtration effect of the circulating water.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art. The standard parts used can be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.

[0035] This utility model is not limited to the above-described embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of this utility model shall be considered equivalent substitutions and shall be included within the protection scope of this utility model.

Claims

1. A pressurization and exhaust device for an air conditioning circulating water system, comprising an expansion tank (10), characterized in that: It also includes a main pipe (11), a return water tank (12), a pressurization and exhaust mechanism (2), and a disassembly and assembly filter mechanism (3); The expansion tank (10) is connected to the return water tank (12) through the main pipe (11); one end of the main pipe (11) is fixedly connected to the lower end of the expansion tank (10), and the other end of the main pipe (11) is fixedly connected to the upper end of the return water tank (12); the side wall of the expansion tank (10) is connected to a pressurizing and venting mechanism (2) for pressurizing the return water tank (12); the upper side of the pressurizing and venting mechanism (2) is provided with a disassembly and assembly filter mechanism (3) for filtering the circulating water inside the main pipe (11), and the disassembly and assembly filter mechanism (3) is connected to the side wall of the main pipe (11); The booster exhaust mechanism (2) includes a branch pipe (21), a main pipe valve (22), a booster pump (23), an inlet valve (24), and an outlet valve (25). The upper and lower ends of the branch pipe (21) are fixedly connected to the right end of the main pipe (11). The main pipe valve (22) is fixedly connected to the side wall of the main pipe (11). The booster pump (23) is fixedly connected to the side wall of the branch pipe (21). An inlet valve (24) is provided on the upper side of the branch pipe (21), and an outlet valve (25) is provided on the lower side of the branch pipe (21). Both the inlet valve (24) and the outlet valve (25) are fixedly connected to the side wall of the branch pipe (21).

2. The pressurization and exhaust device for the air conditioning circulating water system according to claim 1, characterized in that: The disassembly and assembly filter mechanism (3) includes a second branch pipe (31), a second main pipe valve (32), a branch pipe valve (33), and a filter assembly (34). The upper and lower ends of the second branch pipe (31) are fixedly connected to the right end of the main pipe (11). The second main pipe valve (32) is fixedly connected to the side wall of the main pipe (11). The side wall of the second branch pipe (31) is fixedly connected to the branch pipe valve (33). The lower side of the second main pipe valve (32) and the branch pipe valve (33) are both provided with filter assemblies (34) for filtering the circulating water inside the main pipe (11). The filter assembly (34) on the left side is fixedly connected to the side wall of the main pipe (11), and the filter assembly (34) on the right side is fixedly connected to the side wall of the second branch pipe (31).

3. The pressurization and exhaust device for the air conditioning circulating water system according to claim 2, characterized in that: The filter assembly (34) includes a connecting cylinder (341), a fixing ring block (342), a filter screen (343), a fixing cylinder (344), a telescopic cylinder (346), and a limiting component. The lower end of the connecting cylinder (341) is threadedly connected to the lower main pipe (11), and the upper end of the connecting cylinder (341) is fixedly connected to the fixing ring block (342). The inner wall of the fixing ring block (342) is fixedly connected to the filter screen (343). The upper end of the fixing ring block (342) is fixedly connected to the fixing cylinder (344). The outer wall of the fixing cylinder (344) is fitted with a telescopic cylinder (346). A limiting component is provided on the lower side of the telescopic cylinder (346), and the upper end of the telescopic cylinder (346) is threadedly connected to the upper main pipe (11).

4. The pressurization and exhaust device for the air conditioning circulating water system according to claim 3, characterized in that: The limiting component includes an outer ring block (347) and an inner ring block (348). The outer ring block (347) is fixedly connected to the upper end of the fixed cylinder (344), and the inner ring block (348) is fixedly connected to the lower end of the inner sidewall of the telescopic cylinder (346).

5. The pressurization and exhaust device for the air conditioning circulating water system according to claim 4, characterized in that: The lower end of the outer ring block (347) is fixedly connected with a water-proof rubber ring.

6. The pressurization and exhaust device for the air conditioning circulating water system according to claim 3, characterized in that: The lower end of the fixed ring block (342) is fixedly connected with a water-proof rubber ring.

7. The pressurization and exhaust device for an air conditioning circulating water system according to claim 1, characterized in that: The main pipeline valve (22), inlet valve (24), and outlet valve (25) are all electric valves.

8. The pressurization and exhaust device for an air conditioning circulating water system according to claim 1, characterized in that: The booster pump (23) is configured to start periodically.

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