Booster pump capable of reducing bottom pressure fluctuation

Abstract

The utility model discloses a booster pump capable of reducing bottom pressure fluctuation, and belongs to the technical field of booster pumps. A booster pump capable of reducing bottom pressure fluctuation comprises a top frame, an upper cover, a first extension sleeve, a second extension sleeve, a lower sleeve and a base, and further comprises a main body of the booster pump composed of the top frame, the upper cover, the first extension sleeve, the second extension sleeve, the lower sleeve and the base. A water inlet pipe for supplying water to the booster pump is arranged on the lower sleeve; a first water outlet pipe is arranged on a second extension sleeve arranged above the lower sleeve, and a pressure sensor used for monitoring water pressure changes is arranged at the first water outlet pipe; an extension sleeve I is arranged between the lower sleeve and an extension sleeve II provided with a first water outlet pipe; the utility model can solve the problem that the pressure fluctuation at the first outlet at the bottom of the pump body is too large.

Description

Technical Field

[0001] The utility model relates to the technical field of booster pumps, in particular to a booster pump capable of reducing bottom pressure fluctuations. Background Art

[0002] A vertical booster pump is a device that uses centrifugal force to suck fluid from a low-pressure area, then accelerates the rotation of the pump's rotor, and finally outputs the fluid to a high-pressure area. Its principle is to use the low air pressure of a large-area piston to generate high hydraulic pressure of a small-area piston. During operation, the booster pump is first filled with liquid, and then the centrifugal pump is started. The impeller rotates rapidly, and the impeller blades drive the liquid to rotate. When the liquid rotates, it relies on inertia to flow to the outer edge of the impeller. At the same time, the impeller draws liquid from the suction chamber. In this process, the liquid in the impeller flows around the blades. During the circumferential motion, the liquid acts a lift on the blades. In turn, the blades act on the liquid with a force equal to and opposite to the lift. This force does work on the liquid, causing the liquid to gain energy and flow out of the impeller. At this time, the kinetic energy and pressure energy of the liquid are both increased.

[0003] In the field of secondary water supply, vertical booster pumps are widely used because they can effectively boost water supply to high-rise buildings. The existing vertical booster pumps are equipped with multiple outlet pipes to meet multi-regional and multi-functional water supply. However, during the flow of fluid, due to the effect of gravity, the resistance to the fluid at the lowest outlet is relatively large, which may cause the flow velocity and pressure fluctuations of the fluid to increase when flowing through this outlet. Therefore, in response to this problem, the utility model provides a booster pump that can reduce the bottom pressure fluctuation. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and proposes a booster pump which can reduce the bottom pressure fluctuation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A booster pump capable of reducing bottom pressure fluctuations comprises a top frame, an upper cover, an extension sleeve 1, an extension sleeve 2, a lower sleeve and a base, and further comprises: the top frame, the upper cover, the extension sleeve 1, the extension sleeve 2, the lower sleeve and the base constitute the main body of the booster pump; the lower sleeve is provided with a water inlet pipe for supplying water to the booster pump; an extension sleeve 2 placed above the lower sleeve is provided with a first water outlet pipe, and a pressure sensor for monitoring water pressure changes is provided at the first water outlet pipe; an extension sleeve 1 is provided between the lower sleeve and the extension sleeve 2 provided with the first water outlet pipe; a booster assembly is provided in the extension sleeve 1, and a buffer tank is provided on the extension sleeve 2, and a water suction pipe and a water spray pipe are respectively provided on the bottom surface of the buffer tank, the water suction end of the water suction pipe is placed below the booster assembly, and the water spray end of the water spray pipe is placed below the booster assembly; a plurality of buffer tanks are provided.

[0007] Preferably, a motor is provided on the top frame, an output shaft is provided at the output end of the motor, the output shaft is used to drive the boost component to operate, and a fixing rod is provided between the top frame and the base.

[0008] Preferably, in the main body of the booster pump composed of the top frame, upper cover, extension sleeve 1, extension sleeve 2, lower sleeve and base, the upper cover is arranged below the top frame, the extension sleeve 1 is arranged below the upper cover, the extension sleeve 2 is arranged below the extension sleeve 1, the base is placed at the bottom in the main body of the booster pump, and the lower sleeve is arranged on the base.

[0009] Furthermore, an extension sleeve 1 is provided on the lower sleeve, and an extension sleeve 2 is provided on the extension sleeve 1. The extension sleeve 1 and the extension sleeve 2 are provided in multiple groups, and the extension sleeve 1 and the extension sleeve 2 are arranged in a cycle from bottom to top. In the extension sleeve composed of multiple groups of the extension sleeve 1 and the extension sleeve 2, the lowermost end and the uppermost end are both extension sleeve 1.

[0010] Preferably, the second extension sleeve is provided with a second water outlet pipe.

[0011] Preferably, a mounting washer is provided on the second extension sleeve, and the buffer tank is mounted on the mounting washer by fixing screws.

[0012] Preferably, a conical ring is provided at the bottom of the extension sleeve 1, and a side ring is fixedly connected to the edge of the conical ring.

[0013] Preferably, the buffer tank is conical, and the water suction pipe and the water spray pipe are provided in multiple groups.

[0014] Compared with the prior art, the utility model provides a booster pump that can reduce bottom pressure fluctuations, and has the following beneficial effects:

[0015] The booster pump capable of reducing bottom pressure fluctuations absorbs water through a water suction pipe at high pressure through a buffer tank, and discharges water through a water spray pipe at low pressure, thereby reducing pressure fluctuations at the first water outlet pipe, allowing the booster pump to deliver water steadily.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model can solve the problem of excessive pressure fluctuation at the first outlet at the bottom of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a booster pump that can reduce bottom pressure fluctuations proposed by the utility model;

[0018] Figure 2 This is an exploded diagram of a booster pump that can reduce bottom pressure fluctuations proposed by the utility model;

[0019] Figure 3 A booster pump that can reduce bottom pressure fluctuations proposed by the utility model Figure 2 The enlarged structural diagram of part A in the middle;

[0020] Figure 4 This is a cross-sectional view of the bottom of a booster pump that can reduce bottom pressure fluctuations proposed by the utility model;

[0021] Figure 5 A booster pump that can reduce bottom pressure fluctuations proposed by the utility model Figure 4 The enlarged structural diagram of part B in the middle;

[0022] Figure 6 The utility model discloses an exploded view of the extension sleeve 1 and the extension sleeve 2 of a booster pump which can reduce the bottom pressure fluctuation.

[0023] In the figure: 1, top frame; 2, motor; 201, output shaft; 3, upper cover; 4, extension sleeve 1; 5, extension sleeve 2; 6, second water outlet pipe; 7, base; 8, water inlet pipe; 9, first water outlet pipe; 10, pressure sensor; 11, lower sleeve; 12, fixing screw; 13, booster assembly; 14, conical ring; 15, side ring; 16, water suction pipe; 17, water spray pipe; 18, mounting gasket; 19, buffer tank; 20, fixing rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0026] Reference Figure 1-Figure 6A booster pump capable of reducing bottom pressure fluctuations comprises a top frame 1, an upper cover 3, an extension sleeve 1 4, an extension sleeve 2 5, a lower sleeve 11 and a base 7, and further comprises: the top frame 1, the upper cover 3, the extension sleeve 1 4, the extension sleeve 2 5, the lower sleeve 11 and the base 7 constitute the main body of the booster pump; the lower sleeve 11 is provided with a water inlet pipe 8 for supplying water to the booster pump; an extension sleeve 2 5 disposed above the lower sleeve 11 is provided with a first water outlet pipe 9, and the first water outlet pipe 9 is provided with a A pressure sensor 10 for monitoring water pressure changes; an extension sleeve 14 is arranged between the lower sleeve 11 and the extension sleeve 2 5 provided with the first water outlet pipe 9; a booster assembly 13 is arranged in the extension sleeve 14, and a buffer tank 19 is arranged on the extension sleeve 2 5, and a water suction pipe 16 and a water spray pipe 17 are respectively arranged on the bottom surface of the buffer tank 19, the water suction end of the water suction pipe 16 is placed below the booster assembly 13, and the water spray end of the water spray pipe 17 is placed below the booster assembly 13; a plurality of buffer tanks 19 are provided.

[0027] In the utility model, when the pressure in the booster pump increases during use, the pressure sensor 10 located on the first water outlet pipe 9 detects this situation, and absorbs the water at the first water outlet pipe 9 and below the booster assembly 13 into the buffer tank 19 by controlling the water suction pipe 16. Due to the incompressibility of water, the excess water is pushed into the buffer tank 19, thereby reducing the pressure inside the pump body; when the pressure in the booster pump decreases, the pressure sensor 10 located on the first water outlet pipe 9 detects this situation, and controls the water spray pipe 17 to discharge the water in the buffer tank 19 into the pump to supplement the reduced water volume, thereby helping to maintain the pressure inside the pump body stable; this can effectively alleviate or reduce the pressure fluctuation in the booster pump;

[0028] There are multiple groups of buffer tanks 19, and the corresponding water suction pipes 16 and water spray pipes 17 are also provided with multiple groups, see Figure 5 , two groups of buffer tanks 19 are provided, which can absorb and replenish water in the pump one by one, and can more quickly alleviate or reduce the pressure fluctuation in the booster pump;

[0029] The boosting assembly 13 is installed in the cavity area among the water suction pipe 16, the water spray pipe 17 and the output shaft 201, wherein the output shaft 201 can drive the boosting assembly 13 to rotate. Example

[0030] Reference Figure 1-Figure 6, which is basically the same as Example 1, and furthermore: a motor 2 is provided on the top frame 1, an output shaft 201 is provided at the output end of the motor 2, and the output shaft 201 is used to drive the boosting assembly 13 to operate, and a fixing rod 20 is provided between the top frame 1 and the base 7; the main body of the boosting pump is composed of the top frame 1, the upper cover 3, the extension sleeve 1 4, the extension sleeve 2 5, the lower sleeve 11 and the base 7, the upper cover 3 is arranged below the top frame 1, the extension sleeve 1 4 is arranged below the upper cover 3, the extension sleeve 2 5 is arranged below the extension sleeve 1 4, the base 7 is placed at the bottom in the main body of the boosting pump, and the lower sleeve 11 is arranged on the base 7; an extension sleeve is provided on the lower sleeve 11 1, 4, an extension sleeve 2 is provided on the extension sleeve 1 4, and there are multiple groups of extension sleeves 1 4 and extension sleeves 2 5, and the extension sleeves 1 4 and extension sleeves 2 5 are arranged in a cycle from bottom to top. In the extension sleeve composed of multiple groups of extension sleeves 1 4 and extension sleeves 2 5, the lower end and the upper end are both extension sleeves 1 4; a second water outlet pipe 6 is provided on the extension sleeve 2 5; a mounting washer 18 is provided on the extension sleeve 2 5, and a buffer tank 19 is installed on the mounting washer 18 by fixing screws 12; a conical ring 14 is provided at the bottom of the extension sleeve 1 4, and a side ring 15 is fixedly connected to the edge of the conical ring 14; the buffer tank 19 is conical, and there are multiple groups of water suction pipes 16 and water spray pipes 17.

[0031] Reference Figure 6 The water suction pipe 16 and the water spray pipe 17 are arranged on the buffer tank 19 in a circumferential distribution. The lower ends of the water suction pipe 16 and the water spray pipe 17 pass through the conical ring 14. A water spray pipe 17 is provided between every two water suction pipes 16. Similarly, a water suction pipe 16 is provided between every two water spray pipes 17. The water suction pipe 16 and the water spray pipe 17 are arranged in sequence. Multiple groups of water suction pipes 16 and water spray pipes 17 form a ring and are arranged in the buffer tank 19. Through such an arrangement, the water suction pipe 16 or the water spray pipe 17 can absorb or discharge water more evenly, avoiding large pressure fluctuations in local areas of the pump;

[0032] The buffer tank 19 is conical, so that after the external water enters the pump from the water inlet pipe 8 and is pressurized by the booster assembly 13, it can be further pressurized by the combined action of the buffer tank 19 and the booster assembly 13, thereby reducing the pressure drop caused by resistance during the water flow process and improving the pressurization efficiency of the booster pump;

[0033] Likewise, the water suction pipe 16 and the water spray pipe 17 have the same pressurizing effect as the conical buffer tank 19 .

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A booster pump capable of reducing bottom pressure fluctuations, comprising a top frame (1), an upper cover (3), an extension sleeve 1 (4), an extension sleeve 2 (5), a lower sleeve (11) and a base (7), characterized in that: Also includes: The top frame (1), the upper cover (3), the extension sleeve 1 (4), the extension sleeve 2 (5), the lower sleeve (11) and the base (7) constitute the main body of the booster pump; The lower sleeve (11) is provided with a water inlet pipe (8) for supplying water to the booster pump; A first water outlet pipe (9) is provided on an extension sleeve (5) disposed above the lower sleeve (11), and a pressure sensor (10) for monitoring water pressure changes is provided at the first water outlet pipe (9); An extension sleeve 1 (4) is provided between the lower sleeve (11) and the extension sleeve 2 (5) provided with the first water outlet pipe (9); A booster assembly (13) is provided in the extension sleeve 1 (4), a buffer tank (19) is provided on the extension sleeve 2 (5), a water suction pipe (16) and a water spray pipe (17) are provided on the bottom surface of the buffer tank (19), the water suction end of the water suction pipe (16) is placed below the booster assembly (13), and the water spray end of the water spray pipe (17) is placed below the booster assembly (13); The buffer tanks (19) are provided in multiple groups.

2. A booster pump capable of reducing bottom pressure fluctuations according to claim 1, characterized in that: A motor (2) is provided on the top frame (1), an output end of the motor (2) is provided with an output shaft (201), the output shaft (201) is used to drive the booster assembly (13) to operate, and a fixing rod (20) is provided between the top frame (1) and the base (7).

3. A booster pump capable of reducing bottom pressure fluctuation according to claim 1, characterized in that: The main body of the booster pump is composed of the top frame (1), the upper cover (3), the extension sleeve 1 (4), the extension sleeve 2 (5), the lower sleeve (11) and the base (7). The upper cover (3) is arranged below the top frame (1), the extension sleeve 1 (4) is arranged below the upper cover (3), the extension sleeve 2 (5) is arranged below the extension sleeve 1 (4), the base (7) is placed at the bottom of the main body of the booster pump, and the lower sleeve (11) is arranged on the base (7).

4. A booster pump capable of reducing bottom pressure fluctuations according to claim 3, characterized in that: An extension sleeve 1 (4) is provided on the lower sleeve (11), and an extension sleeve 2 (5) is provided on the extension sleeve 1 (4). The extension sleeve 1 (4) and the extension sleeve 2 (5) are provided in multiple groups, and the extension sleeve 1 (4) and the extension sleeve 2 (5) are arranged in a circular manner from bottom to top. In the extension sleeve composed of multiple groups of the extension sleeve 1 (4) and the extension sleeve 2 (5), the lowermost end and the uppermost end are both the extension sleeve 1 (4).

5. A booster pump capable of reducing bottom pressure fluctuation according to claim 1, characterized in that: The second extension sleeve (5) is provided with a second water outlet pipe (6).

6. A booster pump capable of reducing bottom pressure fluctuation according to claim 1, characterized in that: The second extension sleeve (5) is provided with a mounting washer (18), and the buffer tank (19) is mounted on the mounting washer (18) by means of fixing screws (12).

7. A booster pump capable of reducing bottom pressure fluctuation according to claim 1, characterized in that: A conical ring (14) is provided at the bottom of the extension sleeve (4), and a side ring (15) is fixedly connected to the edge of the conical ring (14).

8. A booster pump capable of reducing bottom pressure fluctuations according to claim 6, characterized in that: The buffer tank (19) is conical, and the water suction pipe (16) and the water spray pipe (17) are provided in multiple groups.

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