JP2016217303A - Pump stand - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pump stand that has an inexpensive structure and can reduce noise caused by vibration.SOLUTION: A pump stand 1 according to the present invention comprises: at least two pieces of H-section steel 2 erected; and steel plates 3 arranged between the adjacent pieces of H-section steel 2. The steel plates 3 are welded to the pieces of H-section steel 2. The pieces of H-section steel 2 and the steel plates 3 constitute a structure 18 that comprises at least one internal space 18a. Damping materials 5 are attached to inner surfaces and/or outer surfaces of the structure 18.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a pump mount for supporting a pump.

  Conventionally, a pump device including a pump and an electric motor connected to the pump is known. The pump is supported by a pump mount fixed on the base of the pump device. The drive shaft of the electric motor is connected to the rotary shaft of the pump via, for example, a coupling (shaft coupling) or a speed reducer. In the pump device, the torque of the drive shaft of the electric motor is transmitted to the rotary shaft of the pump via the coupling or the speed reducer, and thereby the impeller fixed to the rotary shaft is rotated. Thus, the pump device is a rotating machine that rotates the impeller of the pump by an electric motor.

  When the pump device is operated, vibration and noise peculiar to the rotating machine are generated from the pump device. In particular, the vibration generated in the pump is transmitted to the pump base that supports the pump, and the pump base vibrates, and as a result, the pump base itself becomes a noise source of the pump device.

  Conventionally, as a countermeasure against noise of the pump device, a vibration isolation mat is installed under the pump device, or the pump device is covered with a noise prevention cover. However, providing a vibration-proof mat and / or a noise-preventing cover increases the cost of the pump device. Therefore, a technique capable of reducing noise caused by vibration with an inexpensive configuration is desired.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a pump mount that can reduce noise caused by vibration with an inexpensive configuration.

  One aspect of the present invention for solving the above-described problem is a pump mount for supporting a pump, which is arranged between at least two H-section steels standing upright and the adjacent H-section steels. A steel plate, wherein the steel plate is welded to the H-shaped steel, the at least two H-shaped steels and the steel plate constitute a structure having at least one internal space, and an inner surface of the structure and / or Or it is the pump mount characterized by the damping material being affixed on the outer surface.

In a preferred aspect of the present invention, a sound absorbing material is disposed in the internal space.
In a preferred aspect of the present invention, the entire internal space is filled with the sound absorbing material.

  According to the present invention, the vibration transmitted from the pump to the pump mount is absorbed by the damping material attached to the structure of the pump mount. As a result, the vibration of the pump mount is reduced, and noise caused by the vibration can be reduced. Moreover, since the structure is composed of an H-shaped steel and a steel plate welded to the H-shaped steel, the pump mount can be manufactured at a very low cost. Therefore, it is possible to provide a pump mount with noise countermeasures at a low cost.

It is a front view of the pump apparatus provided with the pump supported by the pump mount which concerns on one Embodiment of this invention. It is an AA arrow line view of FIG. FIG. 3A is a front view of the pump mount shown in FIG. 1, and FIG. 3B is a top view of the pump mount shown in FIG. 3A. FIG. 4 is a cross-sectional view taken along line BB in FIG. It is sectional drawing of the structure with which the whole interior space was filled with the sound-absorbing material.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a front view of a pump device 100 including a pump 10 supported by a pump mount 1 according to an embodiment of the present invention. FIG. 2 is a view taken along line AA in FIG. As shown in FIG. 1, the pump device 100 includes a pump 10 and an electric motor 11. The rotary shaft 15 of the pump 10 protrudes from the main body 10 a of the pump 10 in the horizontal direction and extends toward the electric motor 11. The drive shaft 17 of the electric motor 11 extends in the horizontal direction toward the pump 10. A drive shaft 17 of the electric motor 11 is connected to a rotary shaft 15 of the pump 10 via a coupling (shaft coupling) 12. Instead of the coupling 12, a reduction gear may be arranged.

  The pump 10 has a suction port 6 and a discharge port 7 protruding upward from the main body 10a. When the rotating shaft 15 of the pump 10 is rotated by the electric motor 11, an impeller (not shown) disposed inside the main body 10a rotates, and as a result, fluid (for example, water) is supplied from the suction port 6 to the main body 10a. And discharged from the discharge port 7.

  As shown in FIGS. 1 and 2, the pump 10 is supported by two pump mounts 1 fixed to the base 9 of the pump device 100. Four pump support jigs 8 protrude from the main body 10a of the pump 10 in the horizontal direction. Although only two pump support jigs 8 are illustrated in FIG. 1, two pump support jigs 8 are also provided on the opposite side of these pump support jigs 8. These pump support jigs 8 are placed on two pump mounts 1 arranged in parallel, whereby the pump 10 is supported by the pump mount 1.

  FIG. 3A is a front view of the pump mount 1 shown in FIG. 1, and FIG. 3B is a top view of the pump mount 1 shown in FIG. 3A. FIG. 4 is a cross-sectional view taken along line BB in FIG. Hereinafter, the pump mount 1 will be described with reference to FIGS. 3 (a), 3 (b), and 4.

  As shown in FIGS. 3A, 3 </ b> B, and 4, the pump mount 1 is disposed between three standing H-sections 2 and adjacent H-sections 2. A steel plate 3. Each steel plate 3 is provided to fill a gap between two adjacent H-shaped steels 2. In the present embodiment, since three H-section steels 2 are provided, four steel plates 3 are provided in order to fill the gaps between these H-section steels 2. A steel plate 3 disposed between adjacent H-section steels 2 is welded to the H-section steel 2. More specifically, the steel plate 3 is welded to the flange portion of the H-section steel 2.

  The three H-section steels 2 and the four steel plates 3 constitute a structure 18 having two internal spaces 18a. The number of H-section steel 2 may be two, or four or more. For example, when the structure 18 has two H-shaped steels 2, one internal space 18 a is formed in the structure 18, and when the structure 18 has four H-shaped steels 2, Three internal spaces 18a are formed.

  A bottom plate 19 made of a steel plate is fixed to the lower end of the structure 18. The pump base 1 is fixed to the base 9 by fixing the bottom plate 19 to the base 9 (see FIG. 1). A lid member 20 made of a steel plate is fixed to the upper end of the structure 18, and the lid member 20 closes a part of the internal space 18 a. The pump 10 is supported on the pump base 1 by placing the pump support jig 8 protruding from the main body 10 a of the pump 10 on the lid member 20.

  The damping material 5 is affixed to the outer surface and inner surface of the structure 18 (that is, the outer surface and the inner surface of the H-section steel 2 and the steel plate 3). The damping material 5 may be attached to either the outer surface or the inner surface of the structure 18. The damping material 5 is a material that can absorb vibration by converting vibration energy into heat energy, for example. By affixing the damping material 5 to the outer surface and / or inner surface of the structure 18, vibration transmitted from the pump 10 to the pump mount 1 can be reduced. Such a damping material 5 is available on the market. For example, EDKEL (registered trademark) manufactured by Nippon Special Paint Co., Ltd. can be used as the damping material 5. The main material of this EDKEL (registered trademark) is asphalt.

  According to the pump mount 1 of the present embodiment, vibration transmitted from the pump 10 to the pump mount 1 is absorbed by the damping material 5 attached to the structure 18 of the pump mount 1. As a result, since the vibration of the pump mount 1 can be reduced, noise caused by the vibration can be reduced. The structure 18 includes an H-section steel 2 and a steel plate 3 welded to the H-section steel 2. Furthermore, the bottom plate 19 fixed to the lower part of the structure 18 and the lid member 20 fixed to the upper part of the structure 18 are also made of steel plates. Therefore, since the pump mount 1 can be manufactured at a very low cost, noise countermeasures can be taken with an inexpensive configuration.

  As illustrated in FIGS. 3A, 3 </ b> B, and 4, the sound absorbing material 4 may be disposed in the internal space 18 a of the structure 18. The sound absorbing material 4 is made of, for example, a porous material mainly composed of fibers, and the air between the fibers absorbs sound energy. Such a sound absorbing material 4 is available on the market. For example, Sepatone (registered trademark) manufactured by Teijin Limited can be used as the sound absorbing material 4. The main material of Sepatone (registered trademark) is polyester fiber.

  By arranging the sound absorbing material 4 in the internal space 18a, the sound absorbing material 4 can absorb the energy of noise generated due to the vibration that cannot be reduced by the vibration damping material 5. Therefore, the noise generated from the pump mount 1 can be further reduced. The sound absorbing material 4 is preferably disposed in a noise resonance portion in the internal space 18a. The resonant part of the noise can be identified by experiment. In the experiment, the pump 10 mounted on the pump mount 1 is actually operated.

  The entire internal space 18 a of the structure 18 may be filled with the sound absorbing material 4. FIG. 5 is a cross-sectional view of the structure 18 in which the entire internal space 18 a is filled with the sound absorbing material 4. As shown in FIG. 5, noise can be further reduced by filling the entire internal space 18 a with the sound absorbing material 4.

  You may use the pump mount 1 which concerns on above-described embodiment for the pump apparatus 100 test-operated in a factory. Before the pump device 100 is shipped, the pump device 100 is subjected to a test operation in a factory in order to determine whether or not the performance requested by the customer is satisfied. When the pump gantry of the pump device 100 that is test-operated in the factory is the pump gantry 1 according to the above-described embodiment, noise generated from the pump device 100 during the test operation of the pump device 100 is reduced.

  The embodiment described above is described for the purpose of enabling the person having ordinary knowledge in the technical field to which the present invention belongs to implement the present invention. Various modifications of the above embodiment can be naturally made by those skilled in the art, and the technical idea of the present invention can be applied to other embodiments. Accordingly, the present invention is not limited to the described embodiments, but is to be construed in the widest scope according to the technical idea defined by the claims.

DESCRIPTION OF SYMBOLS 1 Pump mount 2 H-section steel 3 Steel plate 4 Sound absorbing material 5 Damping material 6 Suction port 7 Discharge port 8 Pump support jig 9 Base 10 Pump 11 Electric motor 12 Coupling 15 Rotating shaft 17 Drive shaft 18 Structure 19 Bottom plate 20 Lid member 100 Pumping device

Claims (3)

A pump mount for supporting the pump,
At least two H-sections standing upright;
A steel plate disposed between the adjacent H-shaped steels,
The steel plate is welded to the H-shaped steel,
The at least two H-section steel and the steel plate constitute a structure having at least one internal space;
A pump mount, wherein a damping material is attached to an inner surface and / or an outer surface of the structure.   The pump mount according to claim 1, wherein a sound absorbing material is disposed in the internal space.   The pump mount according to claim 2, wherein the entire internal space is filled with the sound absorbing material.

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