Efficient low-noise pump set of non-negative pressure water supply equipment

Abstract

The utility model relates to an efficient low-noise pump set of non-negative pressure water supply equipment, which belongs to the technical field of water supply equipment and comprises a pump set body, the right side of the pump set body is in bolted connection with a connecting pipe, the lower side of the connecting pipe is communicated with a drainage pipe, and the upper side of the connecting pipe is provided with a filtering device. A noise reduction device is arranged on the outer side of the pump set body. The filtering device comprises a left end water inlet pipe communicated with the upper side of the connecting pipe, an inner wall stop block fixedly connected to the water inlet pipe, an upper side filtering cylinder abutting against the stop block, two filtering plates inserted into the filtering cylinder, and an inner rotating shaft rotationally arranged on the filtering plates in a sleeving manner. According to the efficient and low-noise pump set of the non-negative-pressure water supply equipment, radiography generated by vibration is effectively reduced through the rubber pad, the shock absorber and the rubber spring, then residual noise generated by vibration is isolated in the lower protective shell and the upper protective shell through sound insulation cotton, and therefore the overall noise reduction performance is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply equipment, in particular to a high-efficiency and low-noise pump group for non-negative-pressure water supply equipment. Background Art

[0002] Non-negative pressure water supply equipment is a pressurized water supply unit that is directly connected to the municipal water supply network, and supplies water in series with superimposed pressure based on the residual pressure of the municipal network to ensure that the municipal network pressure is not less than the set protection pressure of the secondary pressurized water supply equipment. There are two types of non-negative pressure water supply equipment: tank-type non-negative pressure water supply equipment and box-type non-negative pressure water supply equipment. In addition to the stabilizing tank, the box-type non-negative pressure water supply equipment also has a water storage tank for water. There are many types of non-negative pressure water supply equipment.

[0003] After searching, the prior art announcement number CN216044445U discloses a high-efficiency, energy-saving and low-noise centrifugal pump, including a protection box, the inner bottom wall of the protection box is fixedly connected to the centrifugal pump body, the left and right side surfaces of the centrifugal pump body are fixedly connected to a fixing plate, the bottom surface of each of the fixing plates is fixedly connected to two reinforcement rods, the inner bottom wall of the protection box is provided with two groups of clamping holes, the bottom end of each of the reinforcement rods is clamped with the inner wall of the clamping hole, a protective cover is provided above the protection box, and the left and right side surfaces of the protective cover are fixedly connected to two first nuts. The utility model utilizes the cooperation of a pressure plate and a spring. When the centrifugal pump body vibrates during operation, the centrifugal pump body will push the pressure plate, allowing the spring to contract. Utilizing the rebound of the spring, the pressure plate will continuously apply force to the centrifugal pump body, making the centrifugal pump body more stable and reducing the noise generated by the operation of the centrifugal pump body.

[0004] However, this utility model cannot effectively reduce the noise of the pump body by only using the sound-absorbing surface inside the sound-absorbing hole, and the heat energy generated during the operation of the pump body cannot be effectively discharged, resulting in the continuous increase of heat energy inside the protection box and damage to the internal parts of the pump body. Therefore, a high-efficiency and low-noise pump group of non-negative pressure water supply equipment is proposed to solve the above problems. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a high-efficiency, low-noise pump group for non-negative pressure water supply equipment, which has the advantages of comprehensive sound absorption effect and effective heat dissipation. It solves the problem that the sound-absorbing surface inside the sound-absorbing hole cannot fully and effectively reduce the noise of the pump body, and the heat energy generated during the operation of the pump body cannot be effectively discharged, resulting in continuous increase in heat energy inside the protective box and damage to internal parts of the pump body.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-efficiency, low-noise pump unit for non-negative-pressure water supply equipment, comprising a pump unit body, a connecting pipe being bolted to the right side of the pump unit body, a drain pipe being connected to the lower side of the connecting pipe, a filtering device being provided on the upper side of the connecting pipe, and a noise reduction device being provided on the outer side of the pump unit body;

[0007] The filtering device includes a water inlet pipe connected to the left end of the upper side of the connecting pipe, a stopper fixedly connected to the inner wall of the water inlet pipe, a filter cartridge abutting against the upper side of the stopper, two filter plates inserted into the interior of the filter cartridge, an internal rotating shaft rotatably sleeved on the filter plates, two cleaning brushes fixedly connected to the left side of the rotating shaft, and a fan blade sleeved on the lower side of the rotating shaft;

[0008] The noise reduction device includes two rubber pads attached to the outside of the pump group body, multiple rubber springs fixedly connected to the side of one of the rubber pads away from the pump group body, three shock absorbers fixedly connected to the side of another rubber pad away from the pump group body, an upper protective shell fixedly connected to the side of the rubber spring away from the rubber pad, sound insulation cotton bonded to the inner wall of the upper protective shell, and two mineral wool boards fixedly connected to the inside of the upper protective shell.

[0009] Furthermore, a positioning structure is provided on the outside of the upper protective shell, and the positioning structure includes a lower protective shell clamped on the lower side of the upper protective shell, two threaded rods fixedly connected to the upper side of the lower protective shell, an outer sleeve plate sleeved on the threaded rod and an outer wall nut threadedly connected to the upper side of the threaded rod.

[0010] Furthermore, one side of the sleeve plate is vertically fixedly connected to the side surface of the upper protective shell, and an installation groove compatible with the mineral wool board is opened inside the upper side of the lower protective shell.

[0011] Furthermore, the plurality of rubber springs are arranged at equal distances in the transverse direction, and the three shock absorbers are arranged at equal distances in the transverse direction.

[0012] Furthermore, the upper side of the water inlet pipe penetrates the upper protective shell and extends to the outside thereof, and the side of the drain pipe away from the connecting pipe penetrates the lower protective shell and extends to the outside thereof.

[0013] Furthermore, the outer side of the filter cartridge is in contact with the inner wall of the water inlet pipe.

[0014] Furthermore, the lower sides of the two cleaning brushes are respectively attached to the upper surface of the filter plate.

[0015] Compared with the prior art, the present invention provides a high-efficiency and low-noise pump set for non-negative pressure water supply equipment, which has the following beneficial effects:

[0016] 1. The high-efficiency and low-noise pump group of the non-negative pressure water supply equipment effectively reduces the noise caused by vibration through rubber pads, shock absorbers and rubber springs, and then uses sound insulation cotton to isolate the remaining noise generated by vibration inside the lower and upper protective shells, thereby effectively improving the overall noise reduction performance.

[0017] 2. The high-efficiency and low-noise pump group of the non-negative pressure water supply equipment absorbs water through the pump group body and effectively filters it through the filter plate. The water then contacts the fan blades and rotates the cleaning brush to clean the filtered matter on the upper side of the filter plate, reducing the occurrence of blockage. It solves the problem that the sound-absorbing surface inside the sound-absorbing hole cannot fully and effectively reduce the noise of the pump body, and the heat energy generated during the operation of the pump body cannot be effectively discharged, resulting in the continuous increase of heat energy inside the protective box and damage to the internal parts of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0019] Figure 2 This is a front view of the structure of the utility model;

[0020] Figure 3 This is a cross-sectional view of the structure of the filter device of the utility model;

[0021] Figure 4 This is an exploded view of the structure of the lower protective shell and the upper protective shell of the utility model.

[0022] In the figure: 1 lower protective shell, 2 upper protective shell, 3 sound insulation cotton, 4 pump unit body, 5 rubber pad, 6 shock absorber, 7 rubber spring, 8 connecting pipe, 9 drain pipe, 10 filter device, 11 mineral wool board, 12 threaded rod, 13 sleeve, 14 nut, 15 water inlet pipe, 16 block, 17 filter cartridge, 18 cleaning brush, 19 filter plate, 20 rotating shaft, 21 fan blade. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 4In this embodiment, a high-efficiency, low-noise pump unit for a non-negative-pressure water supply device includes a pump unit body 4. The right side of the pump unit body 4 is bolted to a connecting pipe 8. The lower side of the connecting pipe 8 is connected to a drain pipe 9. A filter device 10 is provided on the upper side of the connecting pipe 8. A noise reduction device is provided on the outer side of the pump unit body 4. The filter device 10 includes a left-end water inlet pipe 15 connected to the upper side of the connecting pipe 8, an inner wall block 16 fixedly connected to the water inlet pipe 15, a filter cartridge 17 abutting against the upper side of the block 16, two filter plates 19 inserted into the interior of the filter cartridge 17, an internal rotating shaft 20 rotatably sleeved on the filter plates 19, two cleaning brushes 18 fixedly connected to the left side of the rotating shaft 20, and fan blades 21 sleeved on the lower side of the rotating shaft 20. The noise reduction device includes two rubber pads 5 attached to the outside of the pump group body 4, multiple rubber springs 7 fixedly connected to the side of one of the rubber pads 5 away from the pump group body 4, three shock absorbers 6 fixedly connected to the side of the other rubber pad 5 away from the pump group body 4, an upper protective shell 2 fixedly connected to the side of the rubber spring 7 away from the rubber pad 5, sound insulation cotton 3 bonded to the inner wall of the upper protective shell 2, and two mineral wool boards 11 fixedly connected to the inside of the upper protective shell 2.

[0025] Among them, a positioning structure is provided on the outside of the upper protective shell 2, the positioning structure includes a lower protective shell 1 which is clamped on the lower side of the upper protective shell 2, two threaded rods 12 fixedly connected to the upper side of the lower protective shell 1, an outer sleeve 13 sleeved on the threaded rod 12 and an outer wall nut 14 threadedly connected to the upper side of the threaded rod 12, one side of the sleeve 13 is vertically fixedly connected to the side surface of the upper protective shell 2, and an installation groove matching the mineral wool board 11 is provided inside the upper side of the lower protective shell 1, multiple rubber springs 7 are arranged at equal distances laterally, and three shock absorbers 6 are arranged at equal distances laterally. The upper side of the water inlet pipe 15 passes through the upper protective shell 2 and extends to its outside, and the side of the drain pipe 9 away from the connecting pipe 8 passes through the lower protective shell 1 and extends to its outside, the outer side of the filter cartridge 17 is in contact with the inner wall of the water inlet pipe 15, and the lower sides of the two cleaning brushes 18 are respectively in contact with the upper surface of the filter plate 19.

[0026] It should be noted that one filter plate 19 has a plurality of tiny holes therein, and the other filter plate 19 is inlaid with an activated carbon structure, which can filter out the particles in the liquid. The mineral wool board 11 is famous for its internal porous structure, which can effectively absorb and isolate sound and is an excellent sound insulation material. Although the mineral wool board 11 is mainly used for sound insulation, its porous structure also helps air circulation, thereby promoting heat dissipation to a certain extent.

[0027] The working principle of the above embodiment is:

[0028] The output end of the pump group body 4 is fixed to the connecting pipe 8 with bolts and clamped between the two rubber pads 5. The upper protective shell 2 is sleeved on the outside of the threaded rod 12 on the side of the lower protective shell 1 through the two side sleeves 13, and then the lower protective shell 1 and the upper protective shell 2 are fixed with nuts 14, so that the two rubber pads 5 are clamped more firmly with the pump group body 4. The vibration during the operation of the pump group body 4 will be absorbed by the rubber pad 5, and then the shock absorber 6 and rubber spring 7 will reduce the vibration generated by the pump group body 4, thereby reducing the noise generation. The other part is then passed through the sound insulation cotton 3 to achieve noise reduction. When the pump group body 4 absorbs water, the water enters the connecting pipe 8 from the water inlet pipe 15, and the filter plate 19 filters the residual impurities in the water. When the water contacts the fan blades 21 and rotates, the rotating shaft 20 connecting the fan blades 21 drives the cleaning brush 18 to rotate on the upper side of the filter plate 19, effectively cleaning the filtered impurities and reducing blockage. Finally, the water is discharged from the drain pipe 9.

[0029] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical connection methods, and can be implemented as long as they can achieve their beneficial effects. In addition, the electrical components appearing in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Technicians in this field can control the electrical components through simple programming, and the existing disclosed power connection technology is also common knowledge in this field, so the specific structural composition and working principle will not be described in detail in this embodiment.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency, low-noise pump set for non-negative-pressure water supply equipment, characterized by: The pump unit comprises a pump unit body (4), a connecting pipe (8) is connected to the right side of the pump unit body (4) by bolts, a drain pipe (9) is connected to the lower side of the connecting pipe (8), a filtering device (10) is provided on the upper side of the connecting pipe (8), and a noise reduction device is provided on the outer side of the pump unit body (4); The filtering device (10) comprises a left-end water inlet pipe (15) connected to the upper side of the connecting pipe (8), an inner wall block (16) fixedly connected to the water inlet pipe (15), a filter cartridge (17) on the upper side of the block (16) abutting against two filter plates (19) inserted into the interior of the filter cartridge (17), an internal rotating shaft (20) rotatably sleeved on the filter plate (19), two cleaning brushes (18) fixedly connected to the left side of the rotating shaft (20), and a fan blade (21) sleeved on the lower side of the rotating shaft (20); The noise reduction device comprises two rubber pads (5) attached to the outside of the pump group body (4), a plurality of rubber springs (7) fixedly connected to the side of one of the rubber pads (5) away from the pump group body (4), three shock absorbers (6) fixedly connected to the side of the other rubber pad (5) away from the pump group body (4), an upper protective shell (2) fixedly connected to the side of the rubber spring (7) away from the rubber pad (5), sound insulation cotton (3) bonded to the inner wall of the upper protective shell (2), and two mineral wool boards (11) fixedly connected to the inside of the upper protective shell (2).

2. The high-efficiency, low-noise pump set for non-negative-pressure water supply equipment according to claim 1, characterized in that: A positioning structure is provided on the outer side of the upper protective shell (2), and the positioning structure comprises a lower protective shell (1) clamped on the lower side of the upper protective shell (2), two threaded rods (12) fixedly connected to the upper side of the lower protective shell (1), an outer sleeve (13) sleeved on the threaded rods (12), and an outer wall nut (14) threadedly connected to the upper side of the threaded rods (12).

3. The high-efficiency, low-noise pump set for non-negative-pressure water supply equipment according to claim 2, characterized in that: One side of the sleeve plate (13) is vertically fixedly connected to the side surface of the upper protective shell (2), and a mounting groove matching the mineral wool board (11) is provided inside the upper side of the lower protective shell (1).

4. The high-efficiency, low-noise pump set for non-negative-pressure water supply equipment according to claim 1, characterized in that: The plurality of rubber springs (7) are arranged at equal distances in the transverse direction, and the three shock absorbers (6) are arranged at equal distances in the transverse direction.

5. The high-efficiency, low-noise pump set for non-negative-pressure water supply equipment according to claim 2, characterized in that: The upper side of the water inlet pipe (15) penetrates the upper protective shell (2) and extends to the outside thereof, and the side of the drainage pipe (9) away from the connecting pipe (8) penetrates the lower protective shell (1) and extends to the outside thereof.

6. The high-efficiency, low-noise pump set for non-negative-pressure water supply equipment according to claim 1, characterized in that: The outer side of the filter cartridge (17) is in contact with the inner wall of the water inlet pipe (15).

7. The high-efficiency, low-noise pump set for non-negative-pressure water supply equipment according to claim 1, characterized in that: The lower sides of the two cleaning brushes (18) are respectively attached to the upper surface of the filter plate (19).

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