CN214403993U - Multistage centrifugal pump with noise reduction structure - Google Patents
Multistage centrifugal pump with noise reduction structure Download PDFInfo
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- CN214403993U CN214403993U CN202120599950.6U CN202120599950U CN214403993U CN 214403993 U CN214403993 U CN 214403993U CN 202120599950 U CN202120599950 U CN 202120599950U CN 214403993 U CN214403993 U CN 214403993U
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- centrifugal pump
- silencing
- noise reduction
- sound insulation
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Abstract
The utility model discloses a multistage centrifugal pump with noise reduction structure, which comprises a centrifugal pump body and a stabilizing base which are fixedly connected with each other, wherein the upper side and the lower side of the stabilizing base are sealed by an upper half shell and a lower half shell which are movably connected; the upper half shell comprises a silencing top plate, the silencing top plate is longitudinally and symmetrically connected with a group of sound insulation side plates, the silencing top plate is longitudinally and symmetrically connected with a group of silencing side plates, and the sound insulation side plates are sequentially connected with the silencing side plates at intervals; the lower half shell comprises a damping plate, the stabilizing base and the damping plate form a sealed cavity, and a damping unit is arranged in the sealed cavity. The utility model relates to a multistage centrifugal pump with structure of making an uproar is through setting up the shock attenuation unit, and when the pump body at the during operation, the vibrations that the impeller produced pass through the shock attenuation unit, make the noise that its produced reduce, simultaneously through the syllable-dividing that both sides were equipped with, inhale sound panel for the noise weakens by a wide margin, has reduced the influence of the noise that the pump body produced to the staff.
Description
Technical Field
The utility model belongs to the technical field of centrifugal pump auxiliary assembly, concretely relates to multistage centrifugal pump with structure of making an uproar is fallen.
Background
The centrifugal pump is a pump for conveying liquid by centrifugal force generated when an impeller rotates, and works by causing water to generate centrifugal motion by the rotation of the impeller. The multistage centrifugal pump refers to more than two centrifugal pumps with the same function, which are integrated together, and on the structure of a fluid channel, namely medium pressure relief openings among the centrifugal pumps are communicated with inlets, the multistage centrifugal pump is formed in a series connection mode, the multistage centrifugal pump can improve set pressure, different requirements can be met by changing the number of pump stages, and the multistage centrifugal pump is wider in application range.
Traditional multistage centrifugal pump is at the during operation, and the motor need consume great power and go to drive the impeller and rotate, and a plurality of impellers can produce bigger noise and vibrations at the pivoted in-process, and the long-term existence of these noises can influence staff's auditory nerve, and long-term past can lead to the fact the injury to staff's health, and the vibrations that multistage centrifugal pump brought also can produce the harm for multistage centrifugal pump's base to influence subsequent work.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multistage centrifugal pump with structure of making an uproar falls has solved the great, and strong problem of vibrations of current multistage centrifugal pump noise.
The technical scheme adopted by the utility model is that the multistage centrifugal pump with the noise reduction structure comprises a centrifugal pump body and a stabilizing base which are fixedly connected with each other, wherein the upper side and the lower side of the stabilizing base are sealed by an upper half shell and a lower half shell which are movably connected;
the upper half shell comprises a silencing top plate, the silencing top plate is longitudinally and symmetrically connected with a group of sound insulation side plates, the silencing top plate is longitudinally and symmetrically connected with a group of silencing side plates, and the sound insulation side plates are sequentially connected with the silencing side plates at intervals;
the lower half shell comprises a damping plate, the stabilizing base and the damping plate form a sealed cavity, and a damping unit is arranged in the sealed cavity.
The utility model is also characterized in that,
the shock attenuation unit includes evenly distributed in a plurality of movable grooves of stabilizing the base bottom, is provided with the movable rod in the movable groove, movable rod one end and the shock attenuation board rigid coupling that is located half casing bottom down, and damping spring and solid fixed ring have still cup jointed in proper order from the bottom up on the movable rod.
The outer diameter of the fixing ring is not less than the inner diameter of the movable groove.
A sound insulation hole cover is arranged on the sound attenuation top plate;
the inner wall of the silencing top plate is provided with a plurality of silencing raised lines which are arranged in sequence.
The inner wall of the sound insulation side plate is provided with sound insulation sponge.
The silencing side plate is provided with a connecting hole.
A group of symmetrical first inserting strips a is arranged along the length direction of the silencing top plate;
a group of symmetrical first slots are formed in the longitudinal direction of the sound insulation side plate;
a second insert is arranged along the length direction of the silencing side plate;
a group of first inserting strips b are arranged along the length direction of the damping plate positioned at the top of the lower half shell, and a group of second inserting grooves are longitudinally arranged along the damping plate positioned at the top of the lower half shell; the first inserting strip a and the first inserting strip b are movably connected with the first slot; the second inserting strip is movably connected with the second slot.
The utility model has the advantages that:
(1) the utility model relates to a multistage centrifugal pump with noise reduction structure is through setting up the shock attenuation unit, and when the pump body was worked, the vibrations that the impeller produced passed through the shock attenuation unit, made its noise that produces reduce, simultaneously through the sound insulation that both sides were equipped with, inhale the sound panel, made the noise weaken greatly, reduced the influence of the noise that the pump body produced to the staff;
(2) the utility model relates to a multistage centrifugal pump with structure of making an uproar falls forms the cavity of relative seal with panel through pegging graft, when multistage centrifugal pump long-term work need go overhaul or maintain, only need open the amortization roof, extract the amortization curb plate again, can observe and overhaul the multistage centrifugal pump body, made things convenient for the staff to maintain it, simple structure, convenient operation.
Drawings
Fig. 1 is an external structural view of a multistage centrifugal pump having a noise reduction structure according to the present invention;
FIG. 2 is a schematic structural diagram of a stabilizing base in a multistage centrifugal pump with a noise reduction structure according to the present invention;
FIG. 3 is a schematic structural diagram of a damping unit in the multistage centrifugal pump with a noise reduction structure according to the present invention;
fig. 4 is an exploded schematic view of an upper half casing of the multistage centrifugal pump having a noise reduction structure according to the present invention.
In the figure, 1, a centrifugal pump body, 2, a stabilizing base, 3, a movable groove, 4, a movable rod, 5, a fixing ring, 6, a damping spring, 7, a damping plate, 8, a first inserting strip a, 9, a second inserting strip, 10, a sound insulation side plate, 11, a sound insulation sponge, 12, a first inserting strip, 13, a sound insulation top plate, 14, a sound insulation convex strip, 15, a sound insulation side plate, 16, a second inserting strip, 17, a connecting hole, 18, a sound insulation hole cover and 19 are arranged in sequence.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a multistage centrifugal pump with noise reduction structure, as shown in figure 1 and figure 2, comprising a centrifugal pump body 1 and a stabilizing base 2 which are fixedly connected with each other through bolts, wherein the upper side and the lower side of the stabilizing base 2 are sealed through an upper half shell and a lower half shell which are movably connected;
the upper half shell comprises a silencing top plate 13, the silencing top plate 13 is longitudinally and symmetrically connected with a group of sound insulation side plates 10, the silencing top plate 13 is longitudinally and symmetrically connected with a group of silencing side plates 15, and the sound insulation side plates 10 are sequentially connected with the silencing side plates 15 at intervals;
the lower half shell comprises a damping plate 7, the damping plate 7 is connected to the bottom of the stabilizing base 2 in an inserting mode, a sealing cavity is formed in the bottom of the stabilizing base, and a damping unit is arranged in the sealing cavity. As shown in fig. 3, the damping unit includes a plurality of movable grooves 3 uniformly distributed at the bottom of the stabilizing base 2, movable rods 4 are arranged in the movable grooves 3, one end of each movable rod 4 is fixedly connected with a damping plate 7 positioned at the bottom of the lower half shell, and a damping spring 6 and a fixing ring 5 are further sequentially sleeved on each movable rod 4 from bottom to top; the outer diameter of the fixing ring 5 is not less than the inner diameter of the movable groove 3.
As shown in fig. 4, a sound insulation hole cover 18 is provided on the sound insulation top plate 13, and a sound insulation soft wire is provided on an inner wall of the sound insulation hole cover 18, so that a sound insulation effect is improved.
The inner wall of the silencing top plate 13 is provided with a plurality of silencing convex strips 14 which are arranged in sequence.
The sound insulation sponge 11 is arranged on the inner wall of the sound insulation side plate 10, so that the sound insulation effect is improved;
the silencing side plate 15 is provided with a connecting hole 17, the connecting hole 17 is matched with the output end of the centrifugal pump body 1 in size, and the connecting hole 17 and the sound insulation hole cover 18 are positioned at the same end position of the centrifugal pump body 1.
A set of symmetrical first inserts a8 is arranged along the length direction of the sound-deadening top plate 13; a group of symmetrical first slots 12 are arranged along the length direction of the sound insulation side plate 10;
along amortization curb plate 15 length to being provided with second cutting 16, amortization curb plate 15 still wraps up the rubber pad with amortization roof 13 contact department, has improved syllable-dividing effect.
A group of first inserting strips b19 are arranged along the length direction of the shock absorption plate 7 positioned at the top of the lower half shell, and a group of second inserting grooves 9 are arranged along the longitudinal direction of the shock absorption plate 7 positioned at the top of the lower half shell;
the first inserting strip a8 and the first inserting strip b19 are movably connected with the first slot 12; the second inserting strip 16 is movably connected with the second slot 9, and the movable connection facilitates the disassembly of the whole device.
The utility model relates to a working process of multistage centrifugal pump with structure of making an uproar falls as follows:
the centrifugal pump body 1 is started, the bottom of the centrifugal pump body 1 is connected with the stabilizing base 2 through bolts, the movable rod 4 is driven to move in the vertical direction through the extension and contraction of the damping spring 6, the vibration of the centrifugal pump body 1 is further buffered, the vibration of the centrifugal pump body 1 during working is reduced,
the sound insulation sponge 11 and the silencing raised lines 14 are used for insulating and absorbing noise generated when the centrifugal pump body 1 works, so that the noise is greatly weakened, and the influence of the noise generated by the pump body on workers is reduced; the rubber pads are wrapped at the top ends of the silencing side plates 15, so that the sealing performance of the sound insulation mechanism is better, the sound insulation performance of the sound insulation mechanism is improved, and the noise reduction performance of the sound insulation mechanism is also improved due to the sound insulation soft wires arranged on the sound insulation hole covers 18;
when the centrifugal pump body 1 needs to be overhauled and maintained, the silencing top plate 13 is directly taken out from the top of the centrifugal pump body 1 by disassembling the first inserting strip a8, the first inserting strip b19 and the first slot 12 and disassembling the second inserting strip 16 and the second slot 9, the sound insulation side plates 10 are pulled out from two sides of the damping plate 7 at the moment, and the silencing side plates 15 are pulled out from two ends of the damping plate 7.
The utility model relates to a multistage centrifugal pump with structure of making an uproar is fallen through the shock attenuation unit that is equipped with, has carried out the shock attenuation buffering to multistage centrifugal pump, simultaneously through the syllable-dividing that both sides were equipped with, inhale sound panel to there is the effect of making an uproar to give sound insulation, when the pump body at the during operation, the vibrations that the impeller produced pass through the shock attenuation unit, make its noise reduce, handle the noise through giving sound insulation, amortization curb plate simultaneously, make the noise weaken by a wide margin, reduced the noise that the pump body produced to staff's influence.
Claims (7)
1. The multistage centrifugal pump with the noise reduction structure is characterized by comprising a centrifugal pump body (1) and a stabilizing base (2) which are fixedly connected with each other, wherein the upper side and the lower side of the stabilizing base (2) are sealed by an upper half shell and a lower half shell which are movably connected;
the upper half shell comprises a silencing top plate (13), the silencing top plate (13) is longitudinally and symmetrically connected with a group of sound insulation side plates (10), the silencing top plate (13) is longitudinally and symmetrically connected with a group of silencing side plates (15), and the sound insulation side plates (10) are sequentially connected with the silencing side plates (15) at intervals;
the lower half shell comprises a damping plate (7), the stabilizing base (2) and the damping plate (7) form a sealed cavity, and a damping unit is arranged in the sealed cavity.
2. The multistage centrifugal pump with noise reduction structure according to claim 1, wherein the damping unit comprises a plurality of movable grooves (3) uniformly distributed at the bottom of the stabilization base (2), movable rods (4) are arranged in the movable grooves (3), one end of each movable rod (4) is fixedly connected with a damping plate (7) at the bottom of the lower half-shell, and the movable rods (4) are sequentially sleeved with a damping spring (6) and a fixing ring (5) from bottom to top.
3. A multistage centrifugal pump with a noise reduction structure according to claim 2, wherein an outer diameter of the fixed ring (5) is not smaller than an inner diameter of the movable groove (3).
4. A multistage centrifugal pump with a noise reduction structure according to claim 1, wherein a soundproof hole cover (18) is provided on the noise reduction top plate (13);
the inner wall of the silencing top plate (13) is provided with a plurality of silencing convex strips (14) which are arranged in sequence.
5. A multistage centrifugal pump with a noise reduction structure according to claim 1, wherein the inner wall of the sound insulation side plate (10) is provided with a sound insulation sponge (11).
6. A multistage centrifugal pump with noise reduction structure according to claim 1, characterized in that the noise reduction side plate (15) is provided with a connection hole (17).
7. A multistage centrifugal pump with a noise reduction structure according to claim 1, wherein a set of symmetrical first insertion strips a (8) is arranged along the length direction of the noise reduction top plate (13);
a group of symmetrical first slots (12) are formed along the length direction of the sound insulation side plate (10);
a second inserting strip (16) is arranged along the length direction of the silencing side plate (15);
a group of first inserting strips b (19) are arranged along the length direction of the damping plate (7) positioned at the top of the lower half shell, and a group of second inserting grooves (9) are longitudinally arranged along the damping plate (7) positioned at the top of the lower half shell;
the first inserting strip a (8) and the first inserting strip b (19) are movably connected with the first slot (12); the second inserting strip (16) is movably connected with the second slot (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120599950.6U CN214403993U (en) | 2021-03-24 | 2021-03-24 | Multistage centrifugal pump with noise reduction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120599950.6U CN214403993U (en) | 2021-03-24 | 2021-03-24 | Multistage centrifugal pump with noise reduction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214403993U true CN214403993U (en) | 2021-10-15 |
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ID=78030433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120599950.6U Active CN214403993U (en) | 2021-03-24 | 2021-03-24 | Multistage centrifugal pump with noise reduction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214403993U (en) |
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2021
- 2021-03-24 CN CN202120599950.6U patent/CN214403993U/en active Active
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