CN219840800U

CN219840800U - Low-energy-consumption zero-pressure circulating pump

Info

Publication number: CN219840800U
Application number: CN202320110914.8U
Authority: CN
Inventors: 范卫华; 冯金茂; 顾林丹
Original assignee: Linhai Weixing New Building Materials Co Ltd
Current assignee: Linhai Weixing New Building Materials Co Ltd
Priority date: 2023-01-18
Filing date: 2023-01-18
Publication date: 2023-10-17
Anticipated expiration: 2033-01-18

Abstract

The utility model discloses a low-energy-consumption zero-pressure circulating pump, which comprises a pump shell, an impeller and a driving mechanism, wherein a first water inlet, a water return port and a second water inlet are formed in the pump shell, a separation assembly is arranged in the pump shell, a separation cavity is formed from the separation assembly to the bottom of the pump shell, the separation cavity is communicated with the water inlet, a third water inlet is formed in the center of the separation assembly, a sealing cover is arranged on the third water inlet, the bottom of the sealing cover is inserted in the third water inlet, a bearing is arranged in the center of the sealing cover, the impeller comprises a movable sleeve and a group of blades fixedly arranged on the movable sleeve, the end part of each blade is provided with an inclined surface, the bottom of the movable sleeve is inserted in the bearing, the driving mechanism in transmission connection with the impeller is arranged at the top of the pump shell, and water can slide downwards along the inclined surface when the circulating pump runs, so that the sealing cover is driven to seal the third water inlet, and the indoor circulating pipe network pressure becomes pressureless.

Description

Low-energy-consumption zero-pressure circulating pump

Technical Field

The utility model relates to the technical field of circulating pumps, in particular to a low-energy-consumption zero-pressure circulating pump.

Background

The conventional hot water circulation system is shown in fig. 1, and has no circulation pipeline, and because the hot water pipe dissipates heat and cools, when hot water is needed, cold water in the hot water pipe network is often needed to be discharged, on one hand, water resource waste is caused, and on the other hand, waiting for hot water also needs time, and the conventional hot water circulation system operates in a water supply pressure environment, and under the working condition, the resistance between water and the inner wall surface of the pipeline is increased due to the water supply pressure (reference friction formula f=mu×fn).

Disclosure of Invention

In view of the problems existing in the prior art, the utility model aims to provide a low-energy-consumption zero-pressure circulating pump, which has the advantages of low resistance, high hot water circulating speed and shortened hot water waiting time.

The technical scheme of the utility model is as follows:

the utility model provides a low energy consumption zero pressure quick circulation pump, includes pump case, impeller and actuating mechanism, be equipped with water inlet one, return water mouth and water inlet two on the pump case, be equipped with the partition assembly in the pump case, the partition assembly has formed the partition chamber to the bottom of pump case, the partition chamber link up with the water inlet two-phase, the center department of partition assembly is equipped with water inlet three, be equipped with sealed lid on the water inlet three, the bottom of sealed lid is pegged graft in water inlet three, be equipped with the bearing in the center of sealed lid, the impeller includes movable sleeve and a set of blade of fixed setting on the movable sleeve, and the tip of every blade is established to the inclined plane, peg graft in the bearing in the bottom of movable sleeve, actuating mechanism who is connected with the impeller transmission is installed at the pump case top.

Further, the separation assembly comprises a first annular separation plate and a second annular separation plate, the first annular separation plate is provided with a second annular separation plate along the wall thickness downwards, the second annular separation plate and the first annular separation plate form a step-shaped structure, and the third water inlet is arranged at the center of the second annular separation plate.

Further, the sealing cover is located on the second partition plate, the sealing cover comprises a sealing cover main body and a connecting part arranged at the bottom of the sealing cover main body, a first mounting hole is formed in the center of the sealing cover main body, and the bearing is arranged in the first mounting hole.

Further, the size of the sealing cover main body is matched with that of the partition plate II, the outer diameter of the connecting part is smaller than that of the inner diameter of the water inlet III, and the connecting part is inserted into the water inlet III.

Further, a plurality of blades are fixedly arranged on the movable sleeve along the circumferential direction of the movable sleeve, a connecting column matched with the inner diameter of the bearing is arranged at the bottom of the movable sleeve, a central sleeve hole is formed in the center of the movable sleeve, and the movable sleeve is inserted into the bearing through the connecting column.

Further, the sealing device comprises a gasket, wherein the gasket is arranged between the sealing cover and the second partition plate.

Further, the motor comprises a pump shell upper cover, the pump shell upper cover is arranged on the pump shell, and the driving mechanism comprises a motor and an output shaft arranged at the end part of the motor.

Further, the output shaft penetrates through the upper cover of the pump shell and is fixedly connected with the central sleeve hole.

Further, the first water inlet and the water return port are positioned on two sides of the second water inlet, and the first water inlet is communicated with the inner cavity of the pump shell and the water return port.

Compared with the prior art, the utility model has the beneficial effects that:

1) By adopting the technical scheme of the utility model, as the end part of each blade is provided with the inclined plane, when the circulating pump runs, water can slide downwards along the inclined plane, so that the sealing cover is driven to seal the water inlet III, and the indoor circulating pipe network pressure becomes pressureless;

2) The circulating energy-saving pump is more energy-saving, and the hot water circulating speed is high due to small resistance, so that the hot water waiting time is shortened.

Drawings

FIG. 1 is a diagram of the background art;

FIG. 2 is an exploded view of the overall structure of the present utility model;

FIG. 3 is a cross-sectional view I of the present utility model;

FIG. 4 is a schematic view of the pump housing of the present utility model;

FIG. 5 is a schematic view of the circulation pump of the present utility model in an operational state;

fig. 6 is a schematic structural view of the circulation pump of the present utility model when not in operation.

In the figure: 1. a pump housing; 101. a first water inlet; 102. a water return port; 103. a second water inlet; 104. a separation chamber; 2. an impeller; 3. a water inlet III; 4. sealing cover; 401. a seal cover main body; 4011. a first mounting hole; 402. a connection part; 5. a bearing; 6. a movable sleeve; 601. a connecting column; 602. a central trepanning; 7. a blade; 8. a first partition plate; 9. a second partition plate; 10. a gasket; 11. a pump shell upper cover; 12. a motor; 13. an output shaft.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, but the scope of protection of the utility model is not limited to the described scope.

As shown in fig. 2-4, a low-energy-consumption zero-pressure rapid circulating pump comprises a pump shell 1, an impeller 2 and a driving mechanism, wherein a first water inlet 101, a water return port 102 and a second water inlet 103 are arranged on the pump shell 1, the first water inlet 101 is connected with a cold water inlet of a water heater, the second water inlet 103 is connected with a tap water pipe network, the first water inlet 101 and the water return port 102 are positioned on two sides of the second water inlet 103, and the first water inlet 101 is communicated with an inner cavity of the pump shell 1 and the water return port 102.

The inside of the pump shell 1 is provided with a separation component, a separation cavity 104 is formed from the separation component to the bottom of the pump shell 1, the separation cavity 104 is communicated with a second water inlet 103, the separation component comprises a first annular separation plate 8 with a wall thickness and a second annular separation plate 9, the second annular separation plate 9 is fixedly arranged at the center of the first annular separation plate 8 along the wall thickness downwards, the second annular separation plate 9 and the first annular separation plate 8 form a step-shaped structure, a third water inlet 3 is formed at the center of the second annular separation plate 9, and the third water inlet 3 is communicated with the separation cavity 104 and the second water inlet 103.

The water inlet III 3 is provided with a sealing cover 4, the bottom of the sealing cover 4 is inserted into the water inlet III 3, a bearing 5 is arranged in the center of the sealing cover 4, the impeller 2 comprises a movable sleeve 6 and a group of blades 7 fixedly arranged on the movable sleeve 6, the end part of each blade 7 is provided with an inclined surface, when the circulating pump runs, water can slide downwards along the inclined surface, thereby the sealing cover 4 is driven to seal the water inlet III 3, the pressure of an indoor circulating pipe network is changed into non-pressure, the bottom of the movable sleeve 6 is inserted into the bearing 5, and the top of the pump shell 1 is provided with a driving mechanism in transmission connection with the impeller 2.

The sealing cover 4 is located on the partition plate II 9, the sealing cover 4 comprises a sealing cover main body 401 and a connecting part 402 arranged at the bottom of the sealing cover main body 401, a first mounting hole 4011 is formed in the center of the sealing cover main body 401, and the bearing 5 is arranged in the first mounting hole 4011.

The size of the sealing cover main body 401 is matched with that of the partition plate II 9, the outer diameter of the connecting part 402 is smaller than that of the inner diameter of the water inlet III 3, and the connecting part 402 is inserted into the water inlet III 3.

A gasket 10 is arranged between the sealing cover 4 and the partition plate II 9, so that the tightness is improved, and the gasket 10 is made of elastic materials.

The movable sleeve 6 is fixedly provided with a plurality of blades 7 along the circumferential direction, the bottom of the movable sleeve 6 is provided with a connecting column 601 which is matched with the inner diameter of the bearing 5, the center of the movable sleeve is provided with a central sleeve hole 602, and the movable sleeve 6 is inserted into the bearing 5 through the connecting column 601.

The upper cover 11 of the pump casing is arranged on the pump casing 1, the driving mechanism comprises a motor 12 and an output shaft 13 arranged at the end part of the motor 12, and the output shaft 13 penetrates through the upper cover 11 of the pump casing and is fixedly connected with the central sleeve hole 602.

Specifically, as shown in fig. 5-6, the motor 12 is started, the output shaft 13 rotates to drive the blades 7 to rotate, the blades 7 rotate to drive water to form vortex, meanwhile, the end part of each blade 7 is an inclined plane, water flow can flow downwards along the inclined plane, and the downward water flow enables the sealing cover 4 to seal the water inlet III 3, so that the indoor circulation pipe network pressure becomes pressureless, and the energy is saved; when the circulating pump stops, the running water pressure pushes up the sealing cover 4 to drive the turbine blade to move upwards, so that water is normally supplied.

Claims

1. The utility model provides a low energy consumption zero pressure circulating pump, includes pump case (1), impeller (2) and actuating mechanism, be equipped with water inlet one (101), return water mouth (102) and water inlet two (103) on pump case (1), be equipped with separation subassembly in pump case (1), separation subassembly to the bottom of pump case (1) have formed separation chamber (104), separation chamber (104) link up with water inlet two (103), separation subassembly's center department is equipped with water inlet three (3), its characterized in that be equipped with sealed lid (4) on water inlet three (3), peg graft in water inlet three (3) in the bottom of sealed lid (4), be equipped with bearing (5) in the center of sealed lid (4), impeller (2) are including movable sleeve (6) and a set of blade (7) of fixing on movable sleeve (6), and the tip of every blade (7) is established to the inclined plane, peg graft in bearing (5) in the bottom of movable sleeve (6), actuating mechanism who is connected with impeller (2) transmission is installed at pump case (1) top.

2. The low-energy zero-pressure circulating pump of claim 1, wherein the separation assembly comprises a first annular separation plate (8) and a second annular separation plate (9), the second annular separation plate (9) is fixedly arranged at the center of the first annular separation plate (8) along the wall thickness downwards, the second annular separation plate (9) and the first annular separation plate (8) form a step-shaped structure, and the third water inlet (3) is arranged at the center of the second annular separation plate (9).

3. The low-energy zero-pressure circulating pump according to claim 2, characterized in that the sealing cover (4) is located on the partition plate II (9), the sealing cover (4) comprises a sealing cover main body (401) and a connecting part (402) arranged at the bottom of the sealing cover main body (401), a mounting hole (4011) is formed in the center of the sealing cover main body (401), and the bearing (5) is arranged in the mounting hole (4011).

4. A low-energy zero-pressure circulating pump according to claim 3, characterized in that the size of the sealing cover main body (401) is matched with the size of the partition plate II (9), the outer diameter of the connecting part (402) is smaller than the inner diameter of the water inlet III (3), and the connecting part (402) is inserted into the water inlet III (3).

5. The low-energy-consumption zero-pressure circulating pump according to claim 4, characterized in that a plurality of blades (7) are fixedly arranged on the movable sleeve (6) along the circumferential direction of the movable sleeve, a connecting column (601) matched with the inner diameter of the bearing (5) is arranged at the bottom of the movable sleeve (6), a central sleeve hole (602) is formed in the center of the movable sleeve, and the movable sleeve (6) is inserted into the bearing (5) through the connecting column (601).

6. A low energy zero pressure circulation pump according to claim 5, characterized by comprising a gasket (10), said gasket (10) being arranged between the sealing cover (4) and the partition plate two (9).

7. A low energy zero pressure circulation pump according to claim 6, characterized by comprising a pump housing upper cover (11), said pump housing upper cover (11) being provided on the pump housing (1), said drive mechanism comprising a motor (12) and an output shaft (13) provided at an end of the motor (12).

8. A low energy zero pressure circulation pump according to claim 7, characterized in that the output shaft (13) is fixedly connected to the central bore (602) through the pump housing upper cover (11).

9. The low-energy-consumption zero-pressure circulating pump according to claim 8, wherein the first water inlet (101) and the water return port (102) are positioned at two sides of the second water inlet (103), and the first water inlet (101) is communicated with the inner cavity of the pump shell (1) and the water return port (102).