JPH0236722B2 - FURYUDOYUKIKYUINATSUSOHAISHUTSUSOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a snow suction, flow, and discharge device using a jet jet fluid force, which is used particularly in areas with heavy snowfall.

[Conventional technology]

Commonly used tools for removing snow include hand tools such as shovels, mechanical devices such as shovels and rotary blowers, and snow removal channels that drain large amounts of water into snow drifting channels with slopes suitable for snow removal. There are facilities that input and transport snow, as well as truck transportation from specific urban areas to snow storage areas, snow melting methods using hot water, snow melting agents, etc.
Hydraulic transport, in which snow and water are mixed and transported using rotary or reciprocating pumps, has been proposed and researched, but it is still far from being put to practical use.

[Problem that the invention seeks to solve]

Means using shovels, shovels, etc. are not sufficient to secure a narrow living area in areas with extremely low amounts of snow removal, and transportation means using trucks etc. have difficulty securing transportation routes and are continuous. Since snow cannot be removed, the amount of snow removed or removed is larger than the former method, but it is difficult to say that it is an effective snow removal method in terms of economic efficiency. In addition, since the method of using snow-drifting ditches requires a large amount of water and requires a large slope for the snow-drifting, existing equipment such as sewer pipes can be used, and rotary pumps, etc. The conveying distance must be ensured by repeatedly allowing snow to float down to a high place using a snow slide, and the equipment costs are enormous, and this method cannot be used anywhere. Furthermore, the unfinished method of mixing snow and water and pumping it through a primary pump such as a rotary pump has problems such as snow particles adhering to the pump blades, dirt and stones contained in the snow, plastic bags, strings, etc. etc.,
Not only does this reduce the pump transport efficiency, but also the above substances cause clogging, making it impossible to operate, and in the snow-water multiphase flow, snowflakes adhere to each other and grow large, which causes clogging, making it difficult to put into practical use. It was sexually unsatisfactory.

The present invention is basically similar to the proposed snow and water mixed flow method in that it utilizes water, but it does not directly use a primary pump and therefore eliminates snow adhesion to the blades. An object of the present invention is to provide a floating snow suction, pressure, and discharge device capable of extremely economical and efficient snow removal without entanglement of dirt and debris, and without causing mutual bonding and solidification of snow masses within a conveyance pipe. It is something.

[Means for solving problems]

A water jet nozzle that injects high-pressure water from a high-pressure water supply source into a flow pipe passage that is continuously connected to the suction pipe passage faces toward the discharge port of the flow pipe passage. The apparatus is comprised of a water storage part having a drainage passage formed with a snow crushing processing part, and a starting end of a suction passage pipe of the apparatus main body is supported in close proximity to the drainage passage of the water storage part. The main feature of this paper is the floating snow suction, pressure, and discharge device.

〔Example〕

Figure 1 shows an existing water storage tank 1, which has an overflow section 2 added to it and a drainage passage 3.
A water jet nozzle 7 is connected to a high-pressure water supply source 6 such as a plunger pump in the discharge direction within a flow pipe passage 5 which is continuously connected to the suction pipe passage 4. The device main body 8 facing the injection port is installed so that the starting end of the suction pipe passage 4 is opened downstream of the overflow part 2 of the water storage part. In this case, snow is supplied to the water tank 1 by normal means such as truck transport, but
In order to promote the flow of water, a jet of water or a gas such as warm air is blown onto the water surface of the water storage tank 1 to make it flow, and thereby the snow on the floating water surface is crushed. A jet injector 9 is attached as a crushing means. The jet does not necessarily need to be sprayed on the water surface, and may be provided just before the suction pipe passage 4 exclusively for crushing snow. Further, it is convenient to supply water to the high-pressure water supply source 6 and the jet injection body 9 from the bottom of the water tank 1 or from the drainage passage 3.

FIG. 2 shows a rotary crusher 10 disposed in the overflow part 2 of the embodiment shown in FIG. 1 so as to immerse the rotary crushing section.
It has a structure in which radial crushing rods are fixed to the overflow part 2.
It is assembled with supporting legs on both sides.

Note that the objects passing through the suction pipe passage are snow and water containing air sucked in the suction pipe passage or near the water jet injection part, but if air can be reliably sucked from the suction pipe passage 4, Although it is not necessary to intentionally provide an air inlet near the water jet nozzle, the flow efficiency varies greatly depending on the amount of air introduced, so the air to be supplied may be supplied by jet injection. It is optional to use the negative pressure phenomenon that occurs around the air to suck it or to supply pressurized air as needed, but it is recommended to insert a regulating valve in the introduction passage to adjust the amount. preferable.

In addition, the water storage section may be constructed by piling up the surrounding walls with snow and laying a resin sheet in the depression in the center to form an artificial water storage tank. In this case, a water storage section can be easily formed in a place with a large amount of snow, and it can be removed without leaving a trace once the snow season has passed, so there is no need to spend a large amount of money on equipment.

Furthermore, the snow crushing means provided in the path leading to the starting end of the suction pipe passage includes tunnels, grooves, etc. that spray jet from the peripheral wall, and the snow crushing plate is vertically moved to crush the snow above the water surface. There are means to crush or make the floating snow more brittle.

In addition, for the flow pipe passage, flexible pipes may be connected at necessary points to allow for easy piping to the snow removal area, or if the flow pipe distance is long, an auxiliary jet may be interposed in the route. . For piping connections in this case, it is advantageous to use a tube joint that seals by expansion due to gas injection from the perspective of efficiency of piping work, and the auxiliary jet should be directed from the peripheral wall of the flow pipe passage into the pipe. The water jet is formed into a ring shape to serve as an auxiliary jet, and a gas inlet is provided near the water jet nozzle to eliminate the cavitation phenomenon that occurs around the jet and to supply air.

[Operation and effect of the invention]

The device of the present invention described above utilizes the suction force generated by supplying high-pressure water that has been made high-pressure by a primary pump to the jet injection section, and sucks the snow flowing out from the water storage section into the suction pipe passage. It is used to crush and stir water with a water jet and forcefully feed it into the flow pipe passage.

The device of the present invention is configured so that the snow to be discharged is made to float in the water storage section in which a drainage passage is formed and is sucked in. Therefore, in this water storage section, the solidified snow absorbs water, becomes soft, and is contained in the snow. Stones, dirt, etc. that have a higher specific gravity than snow are removed and reach the suction pipe passage. Therefore, solid matter does not enter the flow pipe path, and the suction pipe passage, the water jet nozzle, and the flow pipe passage are not damaged by solid matter.

In addition, various means can be employed to perform preliminary crushing of floating and flowing snow on the open surface, which has the effect of increasing the degree of preliminary crushing and improving suction and flow efficiency. The snow that is sucked in together with air and water and reaches the jet injection part is re-destroyed and agitated by the high-pressure water jet that is injected here, and is forced into the flow pipe passage in the discharge direction. It becomes like this. In this case, the snow in the flow pipe passage is compressed, expanded, and destroyed by the air that has entered together with the water jet.
Since the snow masses are prevented from joining together and the fluidity is ensured by the movement of the fluid and the slight frictional heat generated between the fluids, extremely smooth snow removal can be carried out by force.

When used under conditions in which air is not sucked together, for example, when the starting end of the suction pipe passage is underwater under floating snow, suction may be performed from the gas inlet or pressure may be supplied. When supplying gas artificially, warm air containing heat generated from a driving machine or the like can be supplied.

In addition, in the device of the present invention, high-pressure water supplied from a high-pressure water supply source using a plunger pump or the like is used as a jet and rushes into the flow pipe passageway in a sealed state. The liquid is suctioned and pressure-fed from the suction pipe passage to the flow pipe passage without passing through the inside.

Therefore, there is no need for a snow removal slope, and even if the snow to be suctioned contains garbage such as plastic bags, ropes, strings, etc. that remain without being removed by the water storage section, the snow will not be removed in the suction pipe passage. As long as it enters the pump, it can be pumped without any problems, and it also eliminates the problem of snow adhering to the moving parts of the pump body and solidifying it, or the dirt getting entangled with the pump body, resulting in a decrease in operating efficiency or a situation where operation is impossible. Therefore, a large amount of snow removal treatment is achieved. Furthermore, since it has a simple structure that combines the water jet nozzle and the piping body, not only is the equipment cost low, but the piping equipment is also easy to install, making it possible to install snow removal equipment in each region. This has the effect of greatly contributing to eliminating snow pollution in areas that experience heavy snowfall every year.

[Brief explanation of drawings]

1 and 2 are schematic diagrams of the configuration of an embodiment of the apparatus of the present invention. DESCRIPTION OF SYMBOLS 1...Water tank, 2...Overflow part, 3...Drainage passage, 4...Suction pipe passage, 5...Flow pipe passage, 6...
... High pressure water supply source, 7 ... Water jet nozzle, 8
...Device body, 9...Jet propellant, 10...
Rotary crusher.

Claims (1)

[Scope of Claims] 1. A water jet nozzle that injects high-pressure water from a high-pressure water supply source into a flow pipe passage that is continuously connected to a suction pipe passage is connected to a discharge port of the flow pipe passage. It consists of a main body of the device that faces in the same direction, and a water storage section that has a drainage passage that is equipped with a snow crushing processing section. A floating snow suction, pressure, and discharge device characterized by being supported nearby. 2. The floating snow suction, pressure, and discharge device according to claim 1, wherein the high-pressure water jet is injected into the flow pipe passage at a plurality of locations along the flow pipe passage. 3. The floating snow suction, pressure, and discharge device according to claim 1, wherein each passage area from the starting end of the suction pipe passage to the terminal end of the flow pipe passage maintains at least the opening area of the suction pipe passage. 4. The floating snow suction, pressure, and discharge device according to claim 1, wherein the material passing through the flow pipe passage is snow and water containing air sucked in the suction passage pipe or in the vicinity of the water jet injection part. 5. The floating snow suction, pressure, and discharge device according to claim 4, wherein the air to be suctioned is controlled suction from the vicinity of the water jet injection part. 6. The floating snow suction, pressure, and discharge device according to claim 1, wherein the water storage section is an artificial water storage tank formed by laying a resin sheet and is an overflow type drainage passage. 7. The floating snow suction, pressure, and discharge device according to claim 1, wherein the water storage portion is any one of a natural pond, an irrigation water pond, a pool, etc. 8. The floating snow suction, pressure, and discharge device according to claim 1, wherein the water storage section is provided with snow crushing means in a path leading to the starting end of the suction pipe passage of the device main body. 9. The floating snow suction, pressure, and discharge device according to claim 8, wherein the snow crushing means is a method of injecting a large number of jets onto the surface of the water storage portion. 10. The floating snow suction, pressure, and discharge device according to claim 8, wherein the snow crushing means is a rotary crusher. 11. The floating snow suction, pressure, and discharge device according to claim 1, wherein water is supplied to the high-pressure water supply source by pumping and supplying water from a water storage section or a drainage passage.