JP2007092741A5 - - Google Patents

Description

Submersible pump with crushing blades

The present invention relates to a submersible pump used when transferring filth and sewage stored in a storage tank included in a disposer to another storage tank.

In the conventional water pump, frequently from garbage reservoir, in order suction port of the water pump is blocked by dust such as potato or soup kelp when transferred to another reservoir, not be able to transfer by the pump To do.

In addition, since all the suction ports of conventional submersible pumps are located at the bottom of the pump, vegetables can float on the surface of the water or swim in the water , especially in the case of garbage crushing and storage. There wasn't. Therefore, vegetables rotted and smelled in the storage tank.

In addition, since the conventional submersible pump can suck only the part directly under the pump, in order to suck sediments such as crushed material that has settled at the bottom part of the storage tank, the stored water in the tank is separately stirred. A stirrer must be installed.

When only one conventional submersible pump is used without adding various functional devices to the facility, there are the following problems.
(1) Large filths block the pump suction port, and transfer by the pump becomes impossible.
(2) Conventional water pump may pump the bottom to the suction port, and further, the pump running minimum water level in the reservoir is defined by the manufacturer, it can be discharged quickly sucked dirt floating on the water surface I can't.
(3) also for sucking dirt precipitates for submersible pump installed in the bottom portion of the reservoir can not only directly under the site to suck, to the pump working lowest level of the manufacturer specified, precipitation throughout the bottom of the reservoir Things are accumulated.

In order to solve the above-mentioned problem, the submersible pump with a crushing blade according to the first aspect of the present invention is provided in a storage tank of a disposer in which filth and sewage are stored, and a pump impeller shaft is provided inside the pump suction port. The pump impeller is rotated to the center to generate a water flow from the outside to the inside of the pump suction port so that filth and sewage are sucked from the pump suction port and discharged from the pump discharge port to the outside of the storage tank. In the pump, the pump impeller shaft extends outside the pump suction port and includes a crushing blade outside the pump suction port.

With this configuration, when the large filth, which is the problem of (1), blocks the pump suction port, the large filth is crushed by the crushing blade attached to the tip of the pump impeller shaft that extends to the outside of the pump suction port .

By installing the submersible pump having the above configuration by the three means shown in the following (A) to (C), it becomes possible to solve the problem (2) and to quickly suck and discharge.

(A) A submersible pump with crushing blades is horizontally laid in the water . This installation means has an effect of cooling the pump motor with water because the pump motor part is constantly underwater . Further, it is possible to pump suction port to face the horizontal direction with respect to the water surface, to dirt also suction floating on the water surface by lowering the water level.
(B) Set the submersible pump with crushing blades upside down in the water , with the pump suction port facing up . By this installation means, it is possible to suck up the dirt that floats preferentially on the water surface.
(C) A plurality of submersible pumps with crushing blades are installed in the water. 1 set the submersible pump with crushing blades horizontally in the water at the bottom of the storage tank , and 2 set the submersible pump with crushing blades upside down in the water, with the pump suction port facing up Install.

Cabbage of the core and leaves floating on the water in the storage tank, half cabbage, etc., have taken nothing days to submerge. However, by this structure, the sewage floating near the water surface can be sucked by lowering the water level in the storage tank and bringing the water surface close to the pump suction port, so the crushing blade attached to the tip of the pump impeller shaft And can be crushed , sucked and discharged in a short time .

Further, the configuration shown (B) and (C), the suction port of the crushing winged submersible pump installed in the headstand shape towards the surface of the water, solid waste by crushing blades simultaneously pump impeller shaft tip and the aspiration of levitation filth It is crushed and can be sucked.

The submersible pump with the crushing blade of the said structure is installed horizontally lying in the bottom part of a storage tank, and the crushing blade area | region with which the impeller shaft tip was mounted | worn is enlarged and it inclines in the shape of a propeller. As a result, the rotation of the pump impeller shaft causes a water flow on the side opposite to the pump suction direction, convection occurs in the sewage in the storage tank, and the precipitated filth blows up. Since the filth blown up is sucked, the filth does not settle on the entire bottom of the storage tank, and the problem (3) can be solved.

JP 2001-207987 A

The length of the pump impeller shaft 3 of each manufacturer's conventional submersible pump is up to the mounting of the impeller at the top of the pump suction casing , and the tip of the pump impeller shaft 3 is tightened with a bolt.

Therefore, the pump impeller 2 is made by turning an extension shaft with a screw threaded at one end of the pump impeller 2 having the same size as the outer diameter of the tightening washer in the central space of the pump impeller 2 by using the tightening bolt tap hole of the pump impeller 2. At the same time as tightening, the pump impeller shaft 3 was extended, and the other end was attached to the tap screw hole of the crushing blade 6 .

Of course, at the stage where the pump manufacturer to design a fracturing winged water pump 1 may be produced by setting the required length of the pump impeller shaft 3.
To improve the submersible pump 1 with crushing blades currently in use , turn the extension shaft mentioned above, remove the fixing bolts of the existing pump impeller 2, and tighten the pump impeller 2 at the tip of the extension shaft It is only necessary to attach the crushing blade 6 to the other tip.

Examples of the shape of the crushing blade 6 according to the embodiment of the present invention are shown in FIGS.
Shape of the crushing blade 6 is simply if the fracture the soil, the area of the crushing blade 6 may be small, but if the cause convection in crushing to simultaneously the installed storage tank, crushing blades The area of 6 may be increased.

As shown in FIG. 3, the submersible pump 1 with crushing blades may be installed horizontally with the submerged pump 1 with crushing blades lying so that the pump suction port 5 is parallel to the water surface . Since the pump suction port 5 is oriented horizontally with the water surface , the suction water flow is in the horizontal direction, and suspended matter in the vicinity of the water surface can be sucked when the water level drops .

If sucking the precipitated contaminants, as shown in FIG. 4, crushing as winged water pump discharge port of the pump 1 is parallel to the water surface, was placed crushing winged water pump 1 and the horizontal bottom of the reservoir Then, the pump impeller shaft 3 is extended to the outside of the pump suction port 5, and the blade inclined crushing blade 7 (crushing blade 6) is attached to the tip of the pump impeller shaft 3 . As the crushing blade 6 rotates, a water flow is generated in the direction of the pump suction port 5 or in the opposite direction . Dirt precipitated on the bottom of the reservoir is stirred by the water flow, blown up in water by addition occurred convection. Since the pump suction port 5 is horizontal, the suction flow generated by the pump is in the horizontal direction, in drawdown time can be sucked suspended solids near the water surface. Thereby, the suction effect which is not seen with the conventional submersible pump is recognized.

Although adapted to all crushing winged submersible pump 1 described above, the high water float detecting sensor and a low water level float detecting sensor is disposed parallel to the crushing winged water pump 1 body.
Crushing winged water pump 1 body, by the inclination angle if the horizontal installation or headstand installed, or is inclined to installed, must be changed the location of each sensing sensor, it can be changed easily location, When making subtle adjustments, install the sensor in an inclined position. As described above, the installation location of each high and low water level float detection sensor can be set to a finer numerical value .

<Example 1>
The submersible pump with crushing blades 1 according to the embodiment of the present invention installed in the storage tank provided in the disposer crushes and sucks even organic substances that are large enough to block the pump suction port 5 because they are not hydrolyzed. Can be discharged and transported.

Organic garbage such a large shape, so that does not block the pump suction port 5 of the crushing winged water pump 1, a pump impeller shaft 3 in which the pump impeller 2 is attached, the casing of the pump suction port 5 The crushing wing 6 was attached to the tip.

The submersible pump 1 with crushing blades can incline the blades of the crushing blades 6 (blade inclined crushing blades 7) in order to improve the suction force . Thus, the pump impeller 2 is sucked by the water flow generated by the rotation, further sucked by organics blade inclined crushing blades 7 of garbage such a large shape which is sucked to the pump suction port 5 of the crushing winged water pump 1 and, to granulated broken in an instant. This was effective even when a conventional submersible pump with a crushing blade was installed upright, and was particularly effective for sediment.

In this case, the installation process of crushing winged water pump 1 that corresponds to both of the waste of a large shape which precipitation or levitation, the dirt precipitate with suction, crushed, but good in the case of a normal upright installation for discharging in the case of such mass and leaf cabbage that swimming emerged near the water surface, the bottom of the reservoir, by installing sideway horizontally, the pump suction port 5 is oriented horizontally, the water surface from a large shape of the waste that is swimming emerged around until dirt has settled to the bottom, with the water flow of the crushing blade 6 over the suction force of the pump impeller 2, there is the effect of crushed attracted to the pump suction port 5 It was.

Besides this, the pump suction port 5 of the crushing winged water pump 1 facing up, when placed in a handstand state, water depth as much as the height of the crushing winged water pump 1 water remaining there because , dirt has emerged sucks well upward pump suction port 5, at the same time the precipitate was floated by stirring water by crushing blade 6, are crushed attracted to the pump suction port 5. Therefore, when there are many suspended objects , the method of installing in a handstand state was effective.

<Example 2>
The submersible pump with crushing blades 1 according to the embodiment of the present invention sucks the crushed material floating near the water surface in the crushed material provided in the disposer after hydrocrushing, and supplies it to another storage tank. Can be transported.

If organic matter such as kitchen garbage such as school lunches is crushed and introduced into the storage tank, it will be settled into two types: meat that settles, fish and other filth that settles in the water, and filth that floats on the water surface such as cabbage core and leaves are categorized.

Crushing winged water pump 1, if the upright installed in the storage tank, dirt precipitates directly below the pump is installed is sucked and discharged. However, dirt and floating on top of the reservoir because it can not be sucked, and increase the dirt surfaced daily, exude odors rot gradually.

In a horizontal direction parallel to the pump discharge port and the water surface, by placing sideway crushed winged water pump 1 horizontally, since the pump suction port 5 is facing sideways in a horizontal direction by sucking Water flow is generated. By approaching the water surface to the pump suction port 5 to lower the water level in the reservoir, it can be sucked dirt floating near the water surface. Thereby, it is possible to solve the problem of accumulation of filth floating near the water surface, which is caused by the conventional pump suction port facing downward.

Further, the pump impeller shaft 3, and extends to the outside of the pump suction port 5, you mount the 攪拌翼 first end of it. Thus, stirring the crushed water stored in the reservoir to cause the water flow, the crushed product precipitates crushed and bottom of the reservoir to rise to the vicinity of the water surface, to prevent the retention was stirred at water, suction and It can be discharged .

By beveled in accordance with the diameter blade of the crushing blade 6, or, in the inclination direction of the blades of the crushing blade 6, it is possible to cause the pull write no water flow stored water toward the pump suction port 5. And when the inclination direction of the blades of the crushing blade 6 is reversed, it is possible to cause a water flow in the direction opposite to the pump suction port 5 .

The pump impeller shaft 3 is rotated at high speed, in the case of crushing blades 6 of larger diameter, the small imbalance, vibrations in the pump will generate, more than necessary large hydropower was sometimes occur. Therefore, when using pump 0.75kw / h crushing winged water pump 1, the diameter of the crushing blade 6, the same as the diameter 50mm pump suction port 5, or were than the larger diameter.

The minimum inclination angle of the crushing blade 6 suitable for two- pole high-speed rotation was around 10 degrees, around 15 degrees, and around 20 degrees, and various implementations were performed at various inclination angles of 45 degrees .
In the submersible pump 1 with the crushing blade 6 in which the crushing blade 6 rotates about 3600 , when the pump suction port 5 has a diameter of 40 mm , the crushing blade 6 has a diameter of 50 mm , and the blade inclination angle of the crushing blade 6 is 25 degrees , When the water flow drawn toward the mouth 5 was generated, it was optimum for sucking floating filth . The diameter and inclination angle of these crushing blades vary depending on the specifications of the submersible pump 1 with crushing blades.

<Example 3>
To suction the precipitate in the storage tank where the disposer is provided is placed flat using crushing winged water pump 1 horizontally. The direction of the water flow generated by the inclination direction of the blades of the crushing blades 6 may be either the suction port direction or the opposite direction, and the precipitate is blown up into the storage tank as the water in the storage tank is stirred by the water flow. , Ru is sucked.
Therefore, the sediment can be sucked and discharged by installing the submersible pump 1 with crushing blades horizontally at the bottom of the storage tank.

Finally, when the submersible pump 1 with crushing blades is not installed upright as in the prior art , that is, when installed with slanting or lying down horizontally, all of the discharge ports are installed facing the upper part . Thereby, the function fall by the air bite and a function stop can be prevented. Moreover, you may use the submersible pump 1 with a crushing wing | blade without an air vent hole.

The existing fracture winged water pump, cross-sectional view of mounting the crushing blades bend corners wings. Sectional drawing which attached the crushing wing | bending which bent the blade | wing to the existing submersible pump with a crushing wing | blade. The existing fracture winged water pump, cross-sectional view mounted crushing blades bend inclined blades was placed horizontally. The existing fracture winged water pumps, equipped with a crushing blade was bent part wings horizontally, installed cross-sectional view of an inverted. The perspective view of the crushing wing | bending which bent the diagonal two points of the substantially circular blade | wing up and down. The perspective view of the crushing wing | blade which bent the both ends of the blade | wing vertically downward. Plan view of the crushing blade vane has planar triangle shape. The top view of the crushing wing | blade of 2 blade | wings propeller shape . The perspective view and partial sectional view which installed the submersible pump which installed the crushing wing upside down in the storage tank of the underwater decomposition and extinction system which can throw in the original form of round garbage. The perspective view and partial sectional view which installed the submersible pump which installed the crushing wing upside down in the storage tank of the underwater decomposition and extinction system which can throw in the original form of the square-shaped garbage. The perspective view and partial sectional view which installed the submersible pump which installed the crushing wing upside down in the storage tank of the underwater decomposition and extinction system which can throw in the original form of round garbage. In purpose of preventing the pump suction port of the existing grinder pump closes a large object, cross-sectional view of mounting the crushing blade outside the pump bottom housing.

Explanation of symbols

1 Submersible pump body with crushing blade 2 Pump impeller 3 Pump impeller shaft 4 Pump bottom housing 5 Pump suction port 6 Crushing blade 7 Blade inclined crushing blade

Claims (3)

Provided in the storage tank of the disposer where filth and sewage are stored, inside the pump suction port, the pump impeller is rotated around the pump impeller shaft to generate a water flow from the outside to the inside of the pump suction port. By this, it is a submersible pump that sucks filth and sewage from the pump suction port and discharges it from the pump discharge port to the outside of the storage tank,
  The submersible pump with a crushing blade, wherein the pump impeller shaft extends outside the pump suction port and includes a crushing blade outside the pump suction port.   The submersible pump with a crushing blade according to claim 1, wherein the crushing blade has a shape that generates a water flow from the outside to the inside of the pump suction port.   2. The submersible pump with a crushing blade according to claim 1, wherein the crushing blade has a shape that generates a water flow from the inside to the outside of the pump suction port.