JPH08240199A - Pump device - Google Patents

Abstract

PURPOSE: To improve forcibly feeding performance of a forcibly feeding medium by supplying high fluid along plural steps of parallel angle in relation to the flow passage of the forcibly feeding medium formed between the intake inlet and injection port of a pump main body, and forming a negative pressure along the injection direction of the forcibly feeding medium. CONSTITUTION: When a pump device is used and when for example various kinds of solids which are mixed in water or under water, sand, and sludge and the like are forcibly fed from the intake inlet 2 of a pump main body 1 toward an injection outlet 3, high pressure fluid is led from each nozzle part 15 into the pump main body 1 passing each high pressure fluid leading hole 11 in a plurality of high pressure fluid supplying means 4, 4A. At this time, high pressure fluid is supplied in a spiral condition while being slantly having an inclining angle of for example 20 degree in relation to the center line of a flow passage. The load range X of a wide range is formed according to the step number of each nozzle part 15, and also a cyclone shaped load range Y is formed in the constant range of a gathering part 22 in the second cylindrical body 6 of the pump main body 1, and thereby, forcibly feed performance of the forcibly feed medium in the pump device is improved.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump device, and more particularly to a pump device capable of efficiently ejecting various pressure-feeding media such as water.

2. Description of the Related Art Conventionally, in this type of pump device for inhaling water and various solid substances mixed in water, pebbles, gravel, etc., and sludge, etc., and jetting them toward a target location, as shown in FIG. The injection nozzle 31 is arranged at a central position inside the pump body 30. That is, the injection nozzle 31 in the pump body 30 and the high-pressure water introduction hole 32 connected to a high-pressure pump (not shown) are connected to each other, and the high-pressure water flowing into the pump body 30 is used to generate a negative pressure (static pressure) in a narrow range. ) Region is formed, and the negative pressure of this negative pressure region is used to suck in water or various solid substances mixed in water, pebbles, gravel, and the like, and a pumping medium such as sludge from the suction port 33, I'm trying to squirt. On the other hand, in addition to the pump device shown in the figure, as a conventional pump device (not shown), a vane portion that is rotated by an electric motor is built in the pump body, and the rotation of the vane portion causes water inside the pump body. There is also a structure in which a pumping medium such as the above is pumped up and discharged.

However, in the case of the above-described conventional pump device, since the injection nozzle is arranged at the central position inside the pump body, water containing no contaminants is sucked and ejected. However, when suctioning or jetting water or sludge or other pressure-feeding medium mixed with solid matter, pebbles, gravel, etc., clogging due to contaminants in water etc. around the injection nozzle inside the pump body may occur. There was a situation that occurred. Therefore, the conventional pump device as shown in FIG. 3 has a problem that it can be used only for the objects for which suction and ejection are extremely limited (for example, water without contaminants). In addition, the conventional pump device as shown has a simple structure in which only one injection nozzle for injecting high-pressure water is installed in the pump body in the horizontal direction. However, the suction power was inferior. On the other hand, in a pump device in which a vane portion that is rotated by an electric motor is built in the pump body described above, due to its structure, water or sludge mixed with solid matter, pebbles, gravel, etc. is pumped and discharged. In this case, there is a problem in that, similar to the above, there will be problems such as clogging due to contaminants in the water around the blade inside the pump body, damage to the blade, and the inside of the pump body being contaminated with oil. There was a problem such as the occurrence of electrical leakage. It is an object of the present invention to solve the above-mentioned conventional problems, and to provide a pump device that can exert strong suction and jetting force of a pressure-feed medium and can be used in a wide range of fields.

A pump device according to claim 1, wherein a pumping medium such as water is sucked from an intake port and ejected from an ejection port, in a pump body extending from the intake port to the ejection port. First and second high-pressure fluid supply means for supplying a high-pressure fluid in a plurality of stages having a parallel angle or a substantially parallel angle to the flow path of No. 1 and forming a negative pressure region along the ejection direction of the pressure-feed medium are provided. It is characterized by that.
A pump device according to a second aspect is the first device according to the first aspect.
The high-pressure fluid supply means of is formed from a tapered tube portion,
The other end of the first cylinder having a suction port for pumping medium such as water at one end is attached to the large-diameter end of the tapered tube portion, and the jetting port for pumping medium at one end is attached to the other end. Second with
Second taper pipe portion formed on the other end of the second cylinder
The end portion side of the maximum diameter position portion of the high-pressure fluid supply means is mounted, and the inside of the large-diameter end portion of the tapered pipe portion communicates with the high-pressure fluid introduction hole for introducing the high-pressure fluid, The high-pressure fluid from the high-pressure fluid introduction hole is obliquely supplied toward the center of the flow path of the pressure-feeding medium in cooperation with the second high-pressure fluid supply means while the nozzle tip end is facing the flow-path of the pressure-feeding medium. 2. The second high-pressure fluid supply means according to claim 1, further comprising two or more nozzles each forming a negative pressure region along the jetting direction, and the one end of the second high-pressure fluid supply means is provided with a jetting port for the pressure-feeding medium. And a configuration similar to that provided in the first high-pressure fluid supply means, which is formed from the same tapered tube portion as the first high-pressure fluid supply means provided at the other end of the second cylindrical body. No. 2 or two or more nozzles are provided. Than it is. The pump device according to claim 3 is a pump device that sucks in a pumping medium such as water from an intake port and ejects it from an ejection port, at a parallel angle or substantially to a flow path in the pump body from the intake port to the ejection port. Supplying high-pressure fluid over a plurality of parallel angles, forming a negative pressure region along the ejection direction of the pressure-feed medium, and arranging so that the high-pressure fluid can be supplied into the pump body in a spiral state, The present invention is characterized in that first and second high-pressure fluid supply means for forming a cyclone-shaped negative pressure region Y are provided along the ejection direction of the pressure-feeding medium. According to a fourth aspect of the present invention, in the pump device according to the third aspect, the first high-pressure fluid supply means according to the third aspect is formed by a tapered pipe portion, and water or the like is pumped to one end of the tapered pipe portion having a large diameter. The other end of the first cylinder having a medium suction port is attached to the other end, and the other end has a tapered tube formed at the other end of the second cylinder having a discharge port for the pressure-feeding medium. Of the second high-pressure fluid supply means, which is attached to the end portion side of the maximum diameter position portion, and communicates with a high-pressure fluid introduction hole for introducing high-pressure fluid inside the large-diameter end portion of the tapered pipe portion. The high-pressure fluid from the high-pressure fluid introduction hole is obliquely directed toward the center of the flow path of the pressure-feeding medium in cooperation with the second high-pressure fluid supply means, while the nozzle tip end faces the flow path of the pressure-feeding medium in the pump body. It forms a negative pressure area along the jet direction of the pressure-feed medium, and Two or more than two or more are arranged so that the fluid can be supplied into the pump body in a swirling state, and form a cyclone-shaped negative pressure region along the ejection direction of the pumping medium in cooperation with the second high-pressure fluid supply means. The second high-pressure fluid supply means according to claim 3, further comprising a plurality of nozzle portions, the second high-pressure fluid supply means being provided at the other end of the second cylindrical body having an ejection port for the pressure-feeding medium at one end. The first high-pressure fluid supply means is formed of the same tapered pipe portion, and is provided with two or more nozzles each having the same configuration as that of the first high-pressure fluid supply means. It is a thing. A pump device according to a fifth aspect is the pumping medium according to the first to fourth aspects,
It is selected from water or various solid substances mixed in water, pebbles, gravel, etc., and sludge, etc. According to a sixth aspect of the present invention, the high pressure fluid according to the first to fourth aspects is high pressure water.

The operation of the pump device of the present invention will be described below.
In the pump device according to claim 1 or 2, when the pumping medium is sucked from the suction port and jetted from the jet port, the first and second high-pressure fluid supply means cause the flow in the pump body from the suction port to the jet port. A high-pressure fluid in a plurality of stages is pumped at a parallel angle or a substantially parallel angle to the passage. As a result, a wide range of negative pressure region is formed in the flow path in the pump body along the jet direction of the pressure-feeding medium, and a strong and amplified pressure-feeding ability can be exerted and a large amount of the pressure-feeding medium can be obtained. Can perform powerful inhalation and ejection. In the pump device according to claim 3 or 4, when the pumping medium is sucked from the suction port and jetted from the jet port, the first and second high-pressure fluid supply means cause the flow in the pump body from the suction port to the jet port. The high-pressure fluid in a plurality of stages is pumped at a parallel angle or a substantially parallel angle to the passage, and the high-pressure fluid is supplied into the pump body in a spiral state. As a result, a wide range of negative pressure region is formed in the flow passage in the pump body along the ejection direction of the pumping medium, and a cyclone-shaped negative pressure region is formed in a certain range of the second tubular body. As a result, it is possible to exert a stronger and amplified pressure feeding ability, and it is possible to perform strong suction and ejection of a large amount of pressure feeding medium. Since the invention according to claim 5 is selected from water, various solids obtained by mixing the pumping medium in the pump device according to any one of claims 1 to 4 in water, pebbles, gravel, and sludge, For example, it can be used as a jet water jet propeller (screw) in ships and the like, and can also be used as a pump device in a wide variety of fields including fishing, civil engineering, and agriculture. Since the invention according to claim 6 uses high-pressure water as the high-pressure fluid in the pump device according to claims 1 to 4, water or various solid substances mixed in water, pebbles, gravel, and the like, and sludge. Can more strongly inhale and eject.

Embodiments of the pump device according to the present invention will be described below in detail with reference to the accompanying drawings. The pump device shown in FIG. 1 has a suction port 2 for a pumping medium selected from water, various solid substances mixed in water, pebbles, gravel, etc., and sludge, etc.
For example, the pump main body 1 is formed into a cylindrical shape and is ejected from the ejection port 3 and ejected from the ejection port 3, and a plurality of first and second high-pressure fluid supply means 4 and 4A provided in the pump main body 1. In this embodiment, the high-pressure fluid supplied from the first and second high-pressure fluid supply means 4, 4A into the pump body 1 is
High pressure water. The pump body 1 has a first cylinder 5 having an intake port 2 at one end, and a first high-pressure fluid supply means 4 having one end attached to the other end of the first cylinder 5. First
One end is attached to the other end side of the high-pressure fluid supply means 4 and the second cylinder body 6 having the ejection port 3 on the other end side is provided.
The second high-pressure fluid supply means 4A is formed on the other end side of the ejection port 3 of the second tubular body 6. O-rings 7 are fitted and tightly joined to the joint end portions of the first cylinder body 5 and the second cylinder body 6 mounted on both ends of the first high-pressure fluid supply means 4. At the same time, a fastener 20 equipped with a high-pressure fluid introducing hole 11 for introducing a high-pressure fluid into the pump body 1 and fitted around the respective mounting portions, and each screw 8 for fastening the fastener 20. Have been concluded using. Further, in the present embodiment, the joining ends of the first tubular body 5 and the second tubular body 6 mounted on both end sides of the first high-pressure fluid supply means 4 are welded at each welding portion 21 to form a single layer. It is installed tightly. The second tubular body 6 has a constricted throat portion, that is, a throat portion state in which the high-pressure fluid to be injected is concentrated between the ejection port 3 and the second high-pressure fluid supply means 4A. Closed part 22
have. The first and second high pressure fluid supply means 4,
4A is a pump body 1 extending from the suction port 2 to the ejection port 3
The high-pressure fluid is pressure-fed over a plurality of stages having a parallel angle or a substantially parallel angle with respect to the inner flow path to form a wide negative pressure region X along the ejection direction of the pressure-feed medium, and A cyclone-shaped negative pressure region Y is formed in a certain range of the constricted portion 22 of the cylindrical body 6. That is, the first and second high-pressure fluid supply means 4, 4A
Is formed from the tapered tube portion 13, and is in a state of communicating with the high pressure fluid introduction hole 11 of the fastener 20 at an internal target position of the tapered tube portion 13 at a substantially maximum diameter position, and
The nozzle body 15 is provided with two nozzles 15 facing the flow path of the pumping medium in the pump body 1. The nozzle portions 15 provided in the first and second high-pressure fluid supply means 4 and 4A obliquely move the high-pressure fluid from the high-pressure fluid introduction hole 11 toward the center of the flow path of the pressure-feeding medium, that is, 2 is configured so as to be supplied at an inclination angle of 20 degrees with respect to the center line CL of the flow path of the pressure-feeding medium, and the high-pressure fluid can be supplied into the pump body 1 in a swirl state. As shown in FIG. 1, since the tips of the nozzles are arranged so as to be directed in different directions with respect to each other under a certain angle inclination, as shown in FIG. 1, the negative pressure region X along the ejection direction of the pressure-feed medium is And a cyclone-shaped negative pressure region Y is formed in a certain range of the constricted portion 22 of the second cylindrical body 6. The high-pressure fluid introduction hole 11 is connected to a high-pressure pump (not shown) so as to supply high-pressure water into the pump body 1 via the nozzle portions 15. Further, in this embodiment, as shown by the arrow in FIG. 1, the high-pressure fluid introduced from the high-pressure fluid introduction hole 11 is the first and second high-pressure fluid supply means 4, 4 respectively.
The high-pressure fluid introduced from the high-pressure fluid introduction hole 11 from each of the nozzle portions 15 provided in A is immediately pumped by the pump body 1.
The high-pressure fluid supplied from the other nozzle section 15 and introduced from the high-pressure fluid introduction hole 11 passes through the space flow path 23 formed inside the nozzle section 15 of each high-pressure fluid supply means 4, 4A. After that, it is supplied into the pump body 1. The operation of the pump device described above will be described below. In this pump device, when pumping medium, that is, for example, water or various solid substances mixed in water, pebbles, gravel, etc., and sludge, etc. are sucked from the suction port 2 and spouted from the spout 3, the first and second The high-pressure fluid, that is, high-pressure water introduced into the pump body 1 from each nozzle portion 15 through each high-pressure fluid introduction hole 11 in the high-pressure fluid supply means 4 and 4A is the first and second high-pressure fluid supply means 4 and 4A. From each of the nozzles, the high-pressure fluid is obliquely supplied with an inclination angle of 20 degrees with respect to the center line CL of the flow path of the pumping medium, and the high-pressure fluid is supplied into the pump body 1 in a spiral state. As a result, a wide range of negative pressure regions corresponding to the number of stages of each nozzle portion 15 of the first and second high-pressure fluid supply means 4, 4A, that is, two stages, in the pump body 1 along the ejection direction of the pressure-feeding medium. X is formed, and a cyclone-shaped negative pressure region Y is formed in a certain range of the constricted portion 22 of the second cylindrical body 6, so that a strong and amplified pressure feeding capability can be exhibited, and a strong pressure of a large amount of pressure feeding medium can be obtained. Inhalation and ejection can be performed. In the pump device of this embodiment having such a configuration, unlike the conventional pump device described above, the injection nozzle and the vane portion are not provided inside the pump body, so the injection nozzle and the vane inside the pump body are provided. There is no possibility that clogging or the like due to contaminants in water will occur in the peripheral portion of the portion, damage to the blade portion, contamination of the inside of the pump body with oil, or leakage of electricity.
A specific example of the performance of the pump device will be described below. As environmental conditions, 200 liters of water was placed in a suitable container such as a drum, and the high-pressure fluid introduction hole 11 of the pump device of this embodiment was connected to a high-pressure pump with an engine through a suitable pipe or tube for operation. . In this case, the diameter of the suction port 2 of the first tubular body 5 and the jet port 3 of the second tubular body 6 in the pump body 1 was 8 cm, and the bank was 1.5 m. As a result, the discharge time of 200 liters of water was 7 seconds, the high-pressure water pressure was 150 kgf / cm ² , and the discharge amount of water was 26 liters / second. The number of the first and second high-pressure fluid supply means 4, 4A, the first and second high-pressure fluid supply means 4, 4A
In addition to the embodiment shown in the figure, the number of nozzles 15 in the above can be increased to 3 stages, 4 stages, ... Here, the pump device according to the present invention is not only used in a situation in which the water or various solids mixed in water, pebbles, gravel, and the like, as well as the pumping medium such as sludge is strongly sucked and ejected. For example, it can be used as a jet water jet propeller (screw) in ships and the like, and can also be used as a pump device in various fields including fishing, civil engineering, and agriculture.

The present invention described in detail above has the following effects. According to the pump device of claim 1 or 2, when the pumping medium is sucked from the suction port and jetted from the jet port,
It can exert a powerful and amplified pumping ability, and can strongly inhale and eject a large amount of pumping medium. According to the pump device according to claim 3 or 4, it is possible to exert an even stronger and amplified pumping capacity than the pump device according to claim 1 or 2, and perform powerful suction and ejection of a large amount of pumping medium. be able to. According to the pump device of claim 5,
The pump device according to any one of claims 1 to 4 can be used for inhaling and ejecting water, various solids mixed with water, pebbles, gravel, etc., and sludge, etc., and is also used as a jet water jet propeller (screw). However, it can also be used as a pump device in a wide variety of fields including fishing, civil engineering, and agriculture. Since the invention according to claim 6 uses high-pressure water as the high-pressure fluid in the pump device according to claims 1 to 4, water or various solid substances mixed in water, pebbles, gravel, and the like, and sludge. Can more strongly inhale and eject.

[Brief description of drawings]

FIG. 1 is a sectional view of an apparatus according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AA in FIG.

FIG. 3 is an explanatory view showing a conventional pump device.

[Explanation of symbols]

 1 Pump Main Body 2 Suction Port 3 Jet Port 4 First High Pressure Fluid Supply Means 4A Second High Pressure Fluid Supply Means 5 First Cylinder 6 Second Cylinder 11 High Pressure Fluid Inlet 13 Tapered Pipe 15 Nozzle 20 Fastener 22 Constricted part 23 Space channel X Negative pressure region Y Cyclone-shaped negative pressure region

Claims (6)

[Claims] 1. A pump device for sucking a pressure-feeding medium such as water from an intake port and ejecting it from an ejection port, with a plurality of parallel or substantially parallel angles to a flow path in the pump body from the intake port to the ejection port. A pump device comprising: first and second high-pressure fluid supply means for supplying a high-pressure fluid across a step and forming a negative pressure region along the ejection direction of the pressure-feed medium. 2. The first high-pressure fluid supply means is formed of a tapered pipe portion, and a large-diameter end portion of the tapered pipe portion is provided with a suction port for a pressure-feeding medium such as water at one end. Second high-pressure fluid supply including a tapered tube portion formed at the other end of the second cylinder having the other end attached to the other end and a pumping medium ejection port at one end The end portion side of the maximum diameter position portion of the means is attached, and inside the large diameter end portion of the tapered pipe portion, the flow of the pressure feeding medium in the pump body is communicated with the high pressure fluid introduction hole for introducing the high pressure fluid. The high-pressure fluid from the high-pressure fluid introduction hole is obliquely supplied toward the center of the flow path of the pressure-feeding medium in cooperation with the second high-pressure fluid supply means while facing the nozzle tip end to the ejection direction of the pressure-feeding medium. Two or more nozzle units forming a negative pressure region along the nozzle unit, The second high-pressure fluid supply means is provided at the other end of the second cylindrical body having an ejection port for the pressure-feeding medium at one end.
Of the same high-pressure fluid supply means as the above-mentioned first high-pressure fluid supply means, and is provided with two or more nozzles each having the same configuration as that of the first high-pressure fluid supply means. The pump device according to claim 1, wherein 3. A pump device for sucking a pressure-feeding medium such as water from an intake port and ejecting it from an ejection port, wherein a plurality of parallel or substantially parallel angles to a flow path in the pump body from the intake port to the ejection port are provided. The high-pressure fluid is supplied over a step to form a negative pressure region along the jet direction of the pressure-feed medium, and the high-pressure fluid is arranged so as to be able to be supplied into the pump body in a spiral state. A pump device comprising first and second high-pressure fluid supply means for forming a cyclone-shaped negative pressure region along a jet direction. 4. The first high-pressure fluid supply means is formed of a tapered pipe portion, and a large-diameter end portion of the tapered pipe portion is provided with a suction port for pumping medium such as water at one end. Second high-pressure fluid supply including a tapered tube portion formed at the other end of the second cylinder having the other end attached to the other end and a pumping medium ejection port at one end The end portion side of the maximum diameter position portion of the means is attached, and inside the large diameter end portion of the tapered pipe portion, the flow of the pressure feeding medium in the pump body is communicated with the high pressure fluid introduction hole for introducing the high pressure fluid. The high-pressure fluid from the high-pressure fluid introduction hole is obliquely supplied toward the center of the flow path of the pressure-feeding medium in cooperation with the second high-pressure fluid supply means while facing the nozzle tip end to the ejection direction of the pressure-feeding medium. Along with forming a negative pressure region, the high pressure fluid is pumped in a spiral state. 2 or more than two nozzle parts which are arranged so as to be able to supply inside and form a cyclone-shaped negative pressure region along the ejection direction of the pressure-feeding medium in cooperation with the second high-pressure fluid supply means. The second high-pressure fluid supply means is provided at the other end of the second cylindrical body having a jetting port for a pressure-feeding medium at one end.
Of the same high-pressure fluid supply means as the above-mentioned first high-pressure fluid supply means, and is provided with two or more nozzles each having the same configuration as that of the first high-pressure fluid supply means. The pump device according to claim 3, wherein 5. The pump device according to claim 1, wherein the pumping medium is selected from water, various solids mixed in water, pebbles, gravel, etc., and sludge, etc. 6. The pump device according to claim 1, wherein the high-pressure fluid is high-pressure water.