JPS6243077B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in self-connecting submersible blowers.

The present applicant previously proposed Japanese Patent Application Laid-Open No. 54-85405 as an installation device for a submersible blower in which the suction and discharge piping is fixed on the land side and the blower assembly and part of the suction and discharge pipes are immersed in the water tank. In this device, the flanges at the ends of the suction and discharge pipes on the blower side are opened downward, and the flanges at the ends of the suction and discharge pipes are fixed on the land side and open upward. In addition to being supported, the blower assembly was guided when going up and down by engaging with a guide device provided on the water tank side. Therefore, even if a cushioning material is interposed between the flange abutting portions, the vibration generated by the blower is and noise are all propagated to the aquarium wall.

There is no problem if there is little vibration or noise or if there are no buildings above the tank, but if a blower is installed in a hotel, condominium, building, etc. for air conditioning, water treatment, or other purposes. When installed in an underground aquarium for space or noise prevention purposes, vibration and noise may propagate toward the building walls above the aquarium wall, causing unexpected noise pollution. Ta.

Therefore, in order to improve the above-mentioned drawbacks, a patent application was filed in 1983.
In No. 167006, an application was filed for a device in which the blower assembly is made completely independent from the aquarium wall to prevent vibrations and noise generated from the blower body from propagating to the aquarium wall. However, in this invention, the connecting flange portion is on the same plane as the center of gravity of the blower main body, so that the structure is sufficiently durable even for use with a large blower, so the overall structure is somewhat complicated.

The object of the present invention is to provide a small blower which has the simplest structure and which does not require direct connection between the blower body and the wall of the water tank.

To describe the first invention in detail with reference to the embodiment shown in FIGS. 1 to 3, 1 and 2 are suction pipes and discharge pipes arranged in parallel on land and fixed by clamps 4 on a common platform 3 provided with an arcuate cutout. The piping has connection flanges 1a and 2a whose tips on the blower side protrude slightly above the water tank 5 and have openings that are slightly upwardly inclined.
6 is a silencer provided at the other end of the suction pipe 1.

Reference numeral 7 denotes a submersible Roots blower assembly in which a motor 8 and a blower main body 9 are directly connected in a watertight manner, and vibration-proof joints are provided at the upper ends of a second muffler 10 and a discharge muffler 11 connected to the suction port and the discharge port, respectively. Intermediate piping 13, 1 whose upper end is bent toward the outside of the water tank through 12
4 are connected, and connecting flanges 13a and 14a are provided at the ends of both the pipes 13 and 14, the opening end faces thereof being inclined downward at the same angle of inclination as the flanges 1a and 2a, respectively, and having the same spacing.

Further, the flanges 13a, 14a have locking claws 15, 16 that are bent downward beyond the upper part and are integrally fixed thereto.
Flanges 1a and 13 are sandwiched between a and 2a in a wedge shape.
a, and the flanges 2a and 14a are connected so that the blower assembly 7 can be held.

17 is a connecting member that connects the vertical portions of the intermediate pipes 13 and 14; 18 is a connecting member that connects the locking claws 15 and 16; and suspension rings 19 and 20 are provided, respectively, to enable the blower assembly 7 to move up and down.

Further, as shown in detail in FIG. 3, the anti-vibration joint 12 has a flange portion of a flanged rubber joint 12c sandwiched between large flanges 12a and 12b connected to intermediate piping 13 and 14 side flanges at both ends, respectively, Long bolt 12 fixed to large flange 12b
The nut 12e and the large flange 1 are commercially available, in which the nut 12e is screwed through the large flange 12a and the nut 12e is screwed into the large flange 12a.
A rubber cushioning material 12f is interposed between 2a.

Figures 4 to 6 show an embodiment of the second invention which is provided with a lifting guide device, and the same members as those in Figures 1 and 2 are given the same reference numerals and explanations will be omitted, and different parts will be omitted. state

Reference numerals 113 and 114 indicate intermediate pipes connected to the vibration-proof joint 12, and the upper part of each pipe is spaced closer to the center, and the open end surface at the tip bent toward the outside of the water tank has the same inclination angle as the flanges 1a and 2a. A downwardly inclined integral connecting flange 115 is provided, which flange 1a,
A locking pawl 115 is integrally formed that bends downward beyond the upper part of both flanges when in abutting state with flange 2a, and engages with an inclined surface formed on the upper rear surface of flanges 1a and 2a to wedge-shape both flanges. The blower assembly 7 can be held by connecting the suction pipe 1 and the intermediate pipe 113 and the discharge pipe 2 and the intermediate pipe 114.

Reference numeral 121 is a guide rod of an appropriate length that is erected at both ends of the common platform 3 and has a tapered upper end.
Reference numeral 2 denotes guide arm fittings protruding from both ends of the connecting flange 115, the tips of which are semicircular and guide the blower body 7 when it is raised or lowered by engagement with the two guide rods 121. It's as good as it gets.

Next, the effect will be explained. The blower assembly 7 is connected via the suspension rings 19 and 20 to a suitable chain block, etc.
If there is no guide device, visually align the connection position, and if there is a guide device, hang the arm bracket 1.
22 and the guide rod 121 and lower it together, the flans 1a and 13a, guided by the guide rod 121,
2a and 14a or flanges 1a, 2a and 11
5 automatically collide, and the locking claws 15, 16 or 1
15a holds the blower assembly 7.

In this case, the entire weight of the blower assembly 7 is supported by the cushioning material 12f interposed in the anti-vibration joint 12. Since a considerable amount of load is reduced underwater due to buoyancy, a small cushioning material 12f can withstand the load sufficiently.

If you start operation in this state, the blower body 9
All of the vibrations and noise generated are absorbed by the vibration-proof joint 12 and hardly transmitted to the upper pipes after the intermediate pipes 13 and 14 and to the wall surface of the water tank 5.

Of course, the intake noise and air supply noise of the blower, the gear noise generated in the timing gear room, etc. can be muffled by the illustrated silencers 6, 10, 11 and by a separate appropriate soundproofing means (not shown).

In this way, since all vibrations are blocked by the vibration-proof joint 12, there is no propagation to the connection flanges 1a, 2a, arm fittings 122 and guide rod 121, and therefore the vibrations are not transmitted to the connection flanges 13a, 14a, 115. No jumping phenomenon occurs.

In addition, the connecting flange may be formed integrally with the suction and discharge sides, or may be provided separately and connected by a connecting member.
It is best to make the end face sloped, but even if it is vertical, it will adhere well because it is given a degree of freedom by the anti-vibration joint 12 and receives a wedge action from the locking claws 15, 16 or 115a. Although it is best to use two guide rods 121, it is also possible to use a rectangular one, or a round one with an appropriate key-shaped detent, and the arm metal shape However, the present invention is not limited to the above-mentioned embodiments.

In addition, although the blower body 9 has been described as a roots type, it can be implemented in the same manner even if other types are used.
3 and 114 remain wide as shown in FIG. 1, the guide rod 121 may be erected between the suction and discharge pipes 1 and 2.

As detailed above, when using the submersible blower of the present invention, the extremely simple configuration eliminates the need to directly connect the blower assembly and the water tank, which are sources of vibration and noise, and is effective in the tensile direction by interposing the blower assembly in the middle of the piping. All vibration from the blower assembly side is absorbed by the anti-vibration joint with a shock absorbing material, so there is no vibration propagation to the tank wall, and the guide device for raising and lowering the blower assembly is also free from vibration due to the anti-vibration joint. It is possible to obtain a self-connecting submersible blower device that can be installed at a transmission position and does not cause pollution at an extremely low cost.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the first invention and a fourth embodiment of the invention.
Figures 1 to 6 show an embodiment of the second invention, of which Figures 1 and 4 are front views, Figures 2 and 5 are side views,
FIG. 3 is an enlarged partial cross-sectional view showing details of the vibration-proof joint, and FIG. 6 is a plan view. In the figure, 1 and 2 are suction and discharge pipes, 7 is a blower assembly, 12 is a vibration-proof joint, 12f is a buffer material, 1
3, 14, 113, 114 are intermediate piping, 15, 1
6, 115a is a locking claw, 121 is a guide rod, 12
2 is arm fitting, 1a, 2a, 13a, 114a, 1
15 indicates a connecting flange.

Claims (1)

[Scope of Claims] 1. In a blower assembly and a part of the suction/discharge piping that are submerged in water, the ends of the automatic connection side of the suction/discharge piping fixed side by side on land are connected to the tip by protruding an appropriate length above the water tank. Separately, the suction/discharge pipes connected to the blower assembly are connected via a vibration-proof joint with a damping material effective in the tensile direction midway through the vertical section, and the upper end is connected to the above-mentioned land-side piping. The connecting flanges are bent horizontally so that the intervals are parallel, and the connecting flanges are fixed at the tips, and the blower side flanges have locking claws protruding outward from the top to prevent engagement with the land side connecting flanges. An automatic connection submersible blower, characterized in that the blower assembly can be held when both pipes are connected. 2. The self-connecting submersible blower according to claim 1, wherein the land side connection flange has an end face inclined slightly upward, and the blower side connection flange has an end face inclined downward at the same angle as the land side. 3. The automatically connecting submersible blower according to claim 1 or 2, wherein the blower side connection flange is capable of being suspended by connecting both the suction and discharge sides with a connecting member as appropriate. 4. For blower assemblies and parts of the suction/discharge piping that are submerged in water, the ends of the automatic connection side of the suction/discharge piping fixed side by side on land should protrude an appropriate length above the water tank, and a connecting flange shall be fixed to the tip; Separately, the suction/discharge pipes connected to the blower assembly are arranged in parallel with the above-mentioned land-side piping at the same spacing at the upper end via a vibration-proof joint with a damping material added in the vertical direction that is effective in the tensile direction. The blower side flange has locking claws protruding outward from the top, and when engaged with the land side connecting flange, both pipes are connected. In addition, two guide rods are installed at an appropriate interval and length at the middle of both land-side pipes or at both outer sides, and the blower assembly is held by engaging with both guide rods. A self-connecting submersible blower, characterized in that an arm fitting is appropriately protruded from the blower-side piping section above the vibration-proof joint so as to provide guidance during three-dimensional elevation. 5. The self-connecting submersible blower according to claim 4, wherein the land-side connection flange has an end surface inclined slightly upward, and the blower-side connection flange has an end surface inclined downward at the same angle as the land side. 6 The blower side piping above the vibration-proof joint is
The connecting flange and the vertical part of the piping were connected with appropriate connecting materials to enable suspension. An automatically connecting submersible blower according to claim 4 or 5.