Low-water-pressure water adding pipeline system

Abstract

The air conditioner comprises an indoor unit, an outdoor unit and a pair of conveying pipes. A cold water receiving opening and a hot water output opening are formed in the outer side of the indoor unit. A cold water output port and a hot water receiving port are formed in the bottom outside the outdoor unit; a first feed pump is mounted in the outdoor unit; the input end of the first feed pump is connected with a cold water input pipe; the cold water input pipe extends to the bottom from the top of the outdoor unit and is connected to the input end of the first water feeding pump. The cold water input pipe close to the input end of the first water feeding pump is connected with a water supplementing pipeline. A cold water input pipe at the top of the outdoor unit is communicated with the exhaust pipeline; the output end of the first feed pump is connected with a cold water output pipe; cooling water flows to the cold water input pipe from the water supplementing pipeline and flows to the indoor unit from the cold water output pipe. The water supplementing pipeline and the exhaust pipeline are arranged in a matched mode, water can be continuously supplied to the indoor unit under the low-water-pressure condition, heat generated when the indoor unit operates is taken away, and therefore the refrigerating effect of the indoor unit is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline systems, in particular to a low-pressure water-adding pipeline system. Background Art

[0002] Household cooling units are commonly used in homes to achieve indoor cooling. Typically, a household cooling unit consists of an indoor unit, an outdoor unit, and a cooling pipe. The indoor unit generates a significant amount of heat during operation, requiring cooling water to be delivered to the indoor unit through the cooling pipe. This cooling water then flows through the pipe, dissipating the heat generated by the indoor unit and achieving the cooling function.

[0003] The household unit can continuously supply cooling water to the indoor unit when the municipal water pressure is high or a booster pump is used. However, when the municipal water pressure is low or there is no booster pump, the outdoor unit cannot supply water to the indoor unit normally, resulting in the heat generated by the indoor unit not being discharged in time, poor heat exchange effect, and reduced refrigeration function, which greatly affects people's quality of life.

[0004] Therefore, the above problems need to be solved urgently. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the utility model provides a low-pressure water supply pipeline system. The purpose is to continuously supply water to the indoor unit under low water pressure conditions through the coordinated arrangement of the water supply pipeline and the exhaust pipeline, and take away the heat generated by the indoor unit during operation to achieve the cooling effect of the indoor unit.

[0006] To achieve the above-mentioned objectives, the present invention provides a low-pressure water supply piping system, comprising an indoor unit, an outdoor unit, and a pair of delivery pipes; a cold water receiving port and a hot water outlet are provided on the outside of the indoor unit; a cold water outlet and a hot water receiving port are provided on the outside bottom of the outdoor unit; the delivery pipe delivers cooling water flowing through the cold water outlet to the cold water receiving port, and the delivery pipe delivers hot water flowing out of the hot water outlet to the hot water receiving port; a first water supply pump is installed in the outdoor unit, and the input end of the first water supply pump is connected to the cold water input pipe; the cold water input pipe extends from the top to the bottom of the outdoor unit and is connected to the input end of the first water supply pump; the cold water input pipe near the input end of the first water supply pump is connected to a water supply pipe; the cold water input pipe located at the top of the outdoor unit is connected to an exhaust pipe; the output end of the first water supply pump is connected to the cold water output pipe; cooling water flows from the water supply pipe to the cold water input pipe, and flows out from the cold water output pipe to the indoor unit.

[0007] The indoor unit generates heat during operation, requiring the outdoor unit to continuously exchange heat for the indoor unit. The outdoor unit delivers cooling water to the indoor unit. Cooling water enters through the cold water receiving port, flows through the indoor unit, removes heat, and is output to the outdoor unit through the hot water outlet.

[0008] The cold water inlet pipe near the input of the first water supply pump has the lowest pressure. When the municipal water supply pressure is low, the piping system cannot supply water normally. At this time, cooling water flows from the make-up water pipe, flows through the cold water inlet pipe, and then flows to the first water supply pump. The first water supply pump uses the high-speed rotation of the impeller to generate centrifugal force. The centrifugal force creates a pressure difference under the cooling water, and the cooling water flows out of the cold water output pipe and is transported to the indoor unit through the delivery pipe. The make-up water pipe continuously supplies cooling water to the indoor unit, ensuring continuous and stable operation of the indoor unit, thereby achieving the cooling effect. The cooling water entering the cold water inlet pipe carries a small amount of air. When the make-up water pipe continuously supplies water to the indoor unit, the low-density air gathers along the cold water inlet pipe to the highest point of the pipe. The exhaust pipe can promptly expel the air accumulated in the cold water inlet pipe, thereby preventing water hammer and improving water supply safety.

[0009] Furthermore, a water supply interface is provided at the inlet end of the water supply pipeline; a water supply valve is provided near the water supply interface. When the municipal water supply pressure is low, the water supply valve is opened, and water flows from the water supply interface into the water supply pipeline; when the pipeline system does not need water supply, the water supply valve is closed.

[0010] Furthermore, the system includes a second water supply pump; the output end of the second water supply pump is connected to the water supply interface via a pipe; a filter is installed between the water supply interface and the second water supply pump. When the municipal water supply pressure is low, the second water supply pump can supply water to the pipeline system. The second water supply pump uses the centrifugal force generated by the high-speed rotation of the impeller to create a pressure differential in the cooling water. The cooling water enters the water supply pipeline through the water supply interface, continuously supplying water to the pipeline system. The filter removes insoluble large particles in the water to meet the water requirements of the indoor units.

[0011] Furthermore, the exhaust pipe away from one end of the cold water inlet pipe is provided with an exhaust valve. When the water supply pipe supplies water to the indoor unit, the exhaust valve is opened, and the air in the cold water inlet pipe gathers upward and is discharged from the exhaust pipe.

[0012] Furthermore, the exhaust valve includes a valve body and an exhaust valve port with external threads; the exhaust valve port is threadedly connected to a valve cap. When the exhaust valve is opened, the valve cap is loosened or removed, and air flows from the exhaust pipe to the valve body and is finally discharged from the exhaust valve port.

[0013] Furthermore, a hot water cooler is provided within the outdoor unit; a hot water delivery pipe is connected between the hot water cooler and the hot water receiving port. After absorbing heat generated by the operation of the indoor unit, the cooling water is output from the hot water output port to the hot water receiving port, and is ultimately delivered to the hot water cooler via the hot water delivery pipe.

[0014] Furthermore, the water replenishment pipeline near one end of the cold water inlet pipe has a branch connected to an expansion tank. The expansion tank balances water pressure fluctuations in the piping system and provides temporary water supply. When the water pressure in the piping system exceeds that in the expansion tank, cooling water in the piping system can flow into the expansion tank. When the water pressure in the piping system falls below that in the expansion tank, cooling water in the expansion tank can be added to the piping system to maintain the water pressure in the piping system within a normal fluctuation range.

[0015] Furthermore, the water supply line and the exhaust line are both connected to the cold water inlet pipe via a tee joint. The tee joint can change the direction of the fluid, so that the cooling water flows from the water supply line to the cold water inlet pipe, and the air gathers at the highest point of the cold water inlet pipe and is discharged from the exhaust line.

[0016] Furthermore, a fan is provided on the side of the outdoor unit to remove heat generated by the operation of the first water supply pump inside the outdoor unit, thereby ensuring that the temperature inside the outdoor unit remains constant.

[0017] Furthermore, an air inlet and an air outlet are respectively provided on both sides of the indoor unit; the air inlet is opposite to the air outlet.

[0018] Beneficial effects

[0019] This new piping system features a water supply line installed at the lowest point of the cold water inlet pipe's water pressure, and an exhaust line installed at the highest point of the cold water inlet pipe. When the piping system fails to supply water normally, cooling water can enter the system through the water supply line, continuously supplying water to the indoor unit, while the exhaust line promptly exhausts air from the piping system. By coordinating the water supply and exhaust lines, the outdoor unit can continuously supply water to the indoor unit even under low water pressure conditions, removing heat generated by the indoor unit's operation and thus achieving the indoor unit's cooling function. This system features convenient piping installation, a simple structure, and strong practicality, making it suitable for low-pressure water supply.

[0020] Through the setting of the second water supply pump, when the pipeline system cannot supply water normally, the second water supply pump is turned on and the second water supply pump transports water to the water supply pipeline; through the setting of the filter, insoluble large particles of impurities in the water can be filtered out to meet the water requirements of the indoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first-person structural diagram of the low-pressure processing piping system;

[0022] Figure 2 A second perspective structural diagram of the low-pressure processing piping system;

[0023] Figure 3 is a first schematic diagram of the internal structure of the outdoor unit;

[0024] Figure 4 is a second schematic diagram of the internal structure of the outdoor unit;

[0025] Figure 5 This is a schematic diagram of the water supply pipeline for the low-pressure processing pipeline system;

[0026] Figure 6 Schematic diagram of the exhaust pipe system for low-pressure processing.

[0027] In the attached figure: 1. Indoor unit; 11. Cold water receiving port; 12. Hot water output port; 13. Air inlet; 14. Air outlet; 2. Outdoor unit; 21. Cold water output port; 22. Hot water receiving port; 23. Hot water delivery pipe; 24. Cold water input pipe; 25. Cold water output pipe; 26. Hot water cooler; 27. Expansion tank; 28. Fan; 3. Delivery pipe; 4. Water supply pipeline; 41. Water supply interface; 42. Water supply valve; 5. Exhaust pipeline; 51. Exhaust valve; 511. Valve body; 512. Exhaust valve port; 6. First water supply pump; 7. Second water supply pump; 8. Filter; 9. Three-way connector. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below. The embodiments described below are examples and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0029] See also Figures 1 to 6 As shown, the utility model provides a technical solution:

[0030] A low-pressure water supply piping system includes an indoor unit 1, an outdoor unit 2, and a pair of delivery pipes 3. The indoor unit 1 is provided with a cold water inlet 11 and a hot water outlet 12 on its exterior. The outdoor unit 2 is provided with a cold water outlet 21 and a hot water inlet 22 on its exterior bottom. The delivery pipes 3 deliver cooling water flowing through the cold water outlet 21 to the cold water inlet 11, and deliver hot water flowing out of the hot water outlet 12 to the hot water inlet 22. A household unit comprises the indoor unit 1, the outdoor unit 2, and the delivery pipes 3. During operation, the indoor unit 1 generates heat, requiring the outdoor unit 2 to continuously exchange heat for the indoor unit 1. The outdoor unit 2 delivers cooling water to the indoor unit 1. The cooling water enters through the cold water inlet 11, flows through the indoor unit 1, removes heat, and is output through the hot water outlet 12 to the outdoor unit 2.

[0031] A first water supply pump 6 is installed in the outdoor unit 2. The input of the first water supply pump 6 is connected to a cold water inlet pipe 24. The cold water inlet pipe 24 extends from the top to the bottom of the outdoor unit 2 and is connected to the input of the first water supply pump 6. The cold water inlet pipe 24 near the input of the first water supply pump 6 is connected to a make-up water pipe 4. The cold water inlet pipe 24 at the top of the outdoor unit 2 is connected to an exhaust pipe 5. The output of the first water supply pump 6 is connected to a cold water output pipe 25. Cooling water flows from the make-up water pipe 4 to the cold water inlet pipe 24 and then out of the cold water output pipe 25 to the indoor unit 1. The pressure in the cold water inlet pipe 24 near the input of the first water supply pump 6 is the lowest. When the municipal water pressure is low, the piping system cannot supply water normally. At this time, cooling water flows from the water supply line 4, flows through the cold water inlet pipe 24, and then flows to the first water supply pump 6. The first water supply pump 6 uses the high-speed rotation of the impeller to generate centrifugal force. Under the action of centrifugal force, the cooling water generates a pressure difference and flows out of the cold water outlet pipe 25. It is then transported to the indoor unit 1 through the delivery pipe 3. The water supply line 4 continuously provides cooling water to the indoor unit 1, ensuring continuous and stable operation of the indoor unit 1, thereby achieving a cooling effect. When the cooling water enters the cold water inlet pipe 24, it will carry a small amount of air. When the water supply line 4 continuously supplies water to the indoor unit 1, the low-density air will gather along the cold water inlet pipe 24 to the highest point of the pipe. The exhaust line 5 can promptly discharge the air accumulated in the cold water inlet pipe 24, thereby preventing water hammer and improving water supply safety.

[0032] In this embodiment, the inlet end of the water supply pipeline 4 is preferably provided with a water supply interface 41; a water supply valve 42 is provided near the water supply interface 41. When the municipal water supply pressure is low, the water supply valve 42 is opened, and water flows from the water supply interface 41 into the water supply pipeline 4; when the pipeline system does not need water supply, the water supply valve 42 is closed.

[0033] This embodiment preferably also includes a second water supply pump 7; the output end of the second water supply pump 7 is connected to the water supply interface 41 via a pipe; a filter 8 is provided between the water supply interface 41 and the second water supply pump 7. When the municipal water pressure is low, the second water supply pump 7 can supply water to the pipeline system. The second water supply pump 7 uses the centrifugal force generated by the high-speed rotation of the impeller to create a pressure differential in the cooling water. The cooling water then enters the water supply pipeline 4 through the water supply interface 41, continuously supplying the pipeline system. The filter 8 removes insoluble large particles of impurities in the water to meet the water requirements of the indoor unit 1.

[0034] In this embodiment, preferably, the exhaust pipe 5 away from one end of the cold water inlet pipe 24 is provided with an exhaust valve 51. When the water supply pipe 4 supplies water to the indoor unit 1, the exhaust valve 51 is opened, and the air in the cold water inlet pipe 24 gathers upward and is discharged from the exhaust pipe 5.

[0035] In this embodiment, the exhaust valve 51 preferably includes a valve body 511 and an externally threaded exhaust valve port 512. A valve cap is threadedly connected to the exhaust valve port 512. When the exhaust valve 51 is opened, the valve cap is loosened or removed, allowing air to flow from the exhaust line 5 to the valve body 511 and ultimately be exhausted from the exhaust valve port 512.

[0036] In this embodiment, a hot water cooler 26 is preferably provided within the outdoor unit 2. A hot water delivery pipe 23 is connected between the hot water cooler 26 and the hot water receiving port 22. After absorbing heat generated by the operation of the indoor unit 1, the cooling water is output from the hot water output port 12 to the hot water receiving port 22, and is ultimately delivered to the hot water cooler 26 via the hot water delivery pipe 23.

[0037] In this embodiment, the water replenishment pipeline 4 preferably has a branch near one end of the cold water inlet pipe 24, which is connected to an expansion tank 27. The expansion tank 27 balances water pressure fluctuations in the piping system and provides temporary water supply. When the water pressure in the piping system is greater than that in the expansion tank 27, cooling water in the piping system can flow into the expansion tank 27. When the water pressure in the piping system is less than that in the expansion tank 27, cooling water in the expansion tank 27 can be added to the piping system to maintain the water pressure in the piping system within a normal fluctuation range.

[0038] In this embodiment, preferably, both the water supply line 4 and the exhaust line 5 are connected to the cold water inlet pipe 24 via a tee joint 9. The tee joint 9 can change the direction of the fluid so that the cooling water flows from the water supply line 4 into the cold water inlet pipe 24, and the air gathers at the highest point of the cold water inlet pipe 24 and is discharged from the exhaust line 5.

[0039] In this embodiment, preferably, a fan 28 is provided on the side of the outdoor unit 2. The fan 28 removes the heat generated by the operation of the first water supply pump 6 inside the outdoor unit 2, ensuring that the temperature inside the outdoor unit 2 is kept constant.

[0040] In this embodiment, preferably, an air inlet 13 and an air outlet 14 are respectively provided on both sides of the indoor unit 1 ; the air inlet 13 is directly opposite to the air outlet 14 .

Claims

1. A low-pressure water supply pipeline system, characterized by: The invention comprises an indoor unit (1), an outdoor unit (2), and a pair of delivery pipes (3); a cold water receiving port (11) and a hot water output port (12) are provided on the outside of the indoor unit (1); a cold water output port (21) and a hot water receiving port (22) are provided on the bottom of the outside of the outdoor unit (2); the delivery pipe (3) delivers cooling water flowing through the cold water output port (21) to the cold water receiving port (11), and the delivery pipe (3) delivers hot water flowing out of the hot water output port (12) to the hot water receiving port (22); A first water supply pump (6) is installed in the outdoor unit (2), and the input end of the first water supply pump (6) is connected to a cold water input pipe (24); the cold water input pipe (24) extends from the top to the bottom of the outdoor unit (2) and is connected to the input end of the first water supply pump (6); the cold water input pipe (24) near the input end of the first water supply pump (6) is connected to a water supply pipe (4); the cold water input pipe (24) located at the top of the outdoor unit (2) is connected to an exhaust pipe (5); the output end of the first water supply pump (6) is connected to a cold water output pipe (25); cooling water flows from the water supply pipe (4) to the cold water input pipe (24), and flows out from the cold water output pipe (25) to the indoor unit (1).

2. The low-pressure water supply pipeline system according to claim 1, characterized in that: A water supply interface (41) is provided at the inlet end of the water supply pipeline (4); and a water supply valve (42) is provided near the water supply interface (41).

3. The low-pressure water supply pipeline system according to claim 1, characterized in that: It also includes a second water supply pump (7); the output end of the second water supply pump (7) is connected to the water supply interface (41) through a pipeline; and a filter (8) is provided between the water supply interface (41) and the second water supply pump (7).

4. The low-pressure water supply pipeline system according to claim 1, characterized in that: The exhaust pipe (5) away from one end of the cold water inlet pipe (24) is provided with an exhaust valve (51).

5. The low-pressure water supply pipeline system according to claim 4, characterized in that: The exhaust valve (51) comprises a valve body (511) and an exhaust valve port (512) with external threads; the exhaust valve port (512) is threadedly connected to a valve cap.

6. The low-pressure water supply pipeline system according to claim 1, characterized in that: A hot water cooler (26) is provided inside the outdoor unit (2); a hot water delivery pipe (23) is connected between the hot water cooler (26) and the hot water receiving port (22).

7. The low-pressure water supply pipeline system according to claim 1, characterized in that: A branch is provided on the water supply pipe (4) near one end of the cold water input pipe (24), and the branch is connected to the expansion tank (27).

8. The low-pressure water supply pipeline system according to claim 1, characterized in that: The water supply pipeline (4) and the exhaust pipeline (5) are both connected to the cold water input pipe (24) via a three-way joint (9).

9. The low-pressure water supply pipeline system according to claim 1, characterized in that: A fan (28) is provided on the side of the outdoor unit (2).

10. The low-pressure water supply pipeline system according to claim 1, characterized in that: An air inlet (13) and an air outlet (14) are respectively provided on both sides of the indoor unit (1); the air inlet (13) is directly opposite to the air outlet (14).

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