JP6362004B2 - Cleaning apparatus for snowpipe piping and cleaning method using the same - Google Patents

Description

  The present invention relates to a cleaning device for a snow extinguishing pipe for cleaning an adhering matter such as a scale attached to an inner peripheral surface of a snow extinguishing pipe meandering on a road or the like by supplying a fluid to the pipe, and the same In particular, there is provided a cleaning device for a snow-dissipating pipe capable of preventing an excessively high pressure in the snow-dissipating pipe from being supplied with a fluid and preventing damage to the pipe and the connecting portion, and It relates to the cleaning method used.

For example, a non-sprinkling snow extinguishing facility is known for snow extinguishing such as roads. Non-water sprinkling snow smelting equipment smelts snow with the heat of groundwater without irrigating water directly on the road, etc. by burying snow-pipe piping in the road and circulating groundwater through it. It is.
However, if deposits accumulate on the inner peripheral surface of the pipe, the amount of groundwater circulation decreases, the heat dissipation effect decreases, and the function of snow removal decreases. Moreover, when the amount of deposits increases, it leads to an overload of the pump that supplies groundwater to the snowpipe, and the pump life is shortened. Therefore, cleaning has been performed to remove deposits in the snowpipe. As a cleaning method, a cleaning fluid is supplied into the pipe, and the deposit is removed from the inner peripheral surface by water pressure (see “Patent Document 1”), or a cleaning ball or the like is put in the pipe to remove the deposit. It is known to peel and remove by contact (see “Patent Document 2”).

  When replacing snowpipe pipes, it is necessary to peel off the road pavement, remove the clogged pipes, and bury new pipes. Therefore, if the original snow-removing function can be recovered by cleaning the pipe, the cost can be greatly reduced as compared with the case of replacing it. In addition, the replacement takes several weeks to several months, during which the road user is inconvenienced. However, since it takes only a few tens of minutes for cleaning, the burden on the road user can be reduced.

JP 2003-93990 A Japanese Patent Laid-Open No. 06-320129

  The snow-pumping pipe includes a pumping main and a water collecting main to which groundwater and the like are supplied, and a plurality of heat radiating pipes disposed between the pumping main and the water collecting main. The heat radiating pipe has a plurality of curved portions, is smaller in diameter than the pumped water main pipe and the water collecting main pipe, and has a very long overall length. In addition, the pumping main, water collecting main, radiator pipe and connecting parts of these pipes are not premised on high pressure from the beginning, so the pressure resistance is higher than that of factory piping intended for factory drainage. Low.

  Patent Document 1 discloses a method for removing deposits by supplying a cleaning fluid to a heat radiating pipe by a pump or the like and cleaning the deposits on a snowpipe pipe. However, since the diameter of the heat radiating pipe is small and long, the inside of the pipe is likely to be high pressure, and the pressure is suddenly increased in the portion where the deposit is present, and excessive pressure acts on the pipe. Since the pressure resistance of the piping is low, the piping may be damaged by an excessive increase in pressure. In addition, there is a possibility that the connection portion between the pumping main pipe, the water collecting main pipe and the heat radiating pipe may be disconnected due to such an increase in pressure. Since the inside of the pipe cannot be visually observed, the amount of deposits and the like cannot be confirmed, and it is difficult to grasp how much pressure is increased unless the cleaning fluid is supplied. However, since the adhering matter is removed by the water pressure of the cleaning fluid, it is necessary to apply a certain amount of pressure, and it is difficult to solve these contradictory problems at the same time. In many cases, the current situation is that abandoning the snowpipe and replacing it with a new one.

  Patent Document 2 discloses a method for removing deposits by placing a cleaning ball in a pipe and moving it using groundwater. However, in places where a large amount of deposits adhere and become clumps, the cleaning balls may be caught by the deposits and cause clogging of the piping. Further, in a state where a large amount of deposits are accumulated on the inner peripheral surface of the pipe and the pipe is clogged, it is not possible to even insert a cleaning ball, and cleaning by this method is impossible.

  The present invention relates to a cleaning device for supplying a cleaning fluid into a snow extinguishing pipe to perform cleaning, and cleaning is possible even when a large amount of deposits are accumulated, and the pressure in the pipe is excessive during cleaning. The purpose is to prevent the pipe from rising and to prevent damage to the piping.

This invention includes the first to fourth inventions.
A first aspect of the present invention is a cleaning device for a snow removal pipe that injects a cleaning fluid from one of snow removal pipes embedded in a road or the like, and cleans the inside of the snow removal pipe, wherein the cleaning fluid is pressurized to a high pressure. to discharge high pressure pumps are indirectly or directly connected with a fluid injection means for supplying high pressure of the cleaning fluid to the piping snow melting, the fluid injection means comprises a pump which is detachably connected to the high pressure pump A connection part, a pipe connection part that is detachably connected to the snowpipe, a main flow path that is located between the pump connection part and the pipe connection part, and through which the cleaning fluid flows, and A pressure gauge for measuring pressure, and a safety device for discharging pressure when the pressure measured by the pressure gauge becomes a predetermined value or more are provided.

A second aspect of the present invention is a snow removal pipe cleaning apparatus for injecting a cleaning fluid from one of snow removal pipes embedded in a road or the like and cleaning the inside of the snow removal pipe, wherein the cleaning fluid is pressurized to a high pressure. to discharge high pressure pumps are indirectly or directly connected with a fluid injection means for supplying high pressure of the cleaning fluid to the piping snow melting, the fluid injection means comprises a pump which is detachably connected to the high pressure pump A connection part, a pipe connection part detachably connected to the snowpipe, a main flow path between the pump connection part and the pipe connection part, through which the cleaning fluid flows, and the main flow path A main valve that can be opened and closed, and a pressure adjusting unit that is located between the pump connecting part and the main valve and that can adjust the pressure of the cleaning fluid.

The fluid injection means may be connected to either the pumped main pipe or the water collecting main pipe of the snow-fighting pipe via the pipe connecting portion.

A third invention is, while the cleaning fluid is injected from the piping melting snow embedded in roads, the A cleaning method of melting snow pipe to clean the snow melting for the pipe, a high pressure the cleaning fluid A fluid injection means for supplying the high-pressure cleaning fluid to the snowpipe, which is indirectly or directly connected to a high-pressure pump for discharging , the fluid injection means including a main flow path through which the cleaning fluid flows; A pressure gauge that measures the pressure in the main flow path, and a safety device that exhausts the pressure when the pressure measured by the pressure gauge exceeds a certain value , and a pump connection part is detachably connected to the high-pressure pump. The pipe connecting portion is detachably connected to the snow-pumping pipe .

A fourth invention, while the cleaning fluid is injected from the piping melting snow embedded in roads, the A cleaning method of melting snow pipe to clean the snow melting for the pipe, a high pressure the cleaning fluid A fluid injection means for supplying the high-pressure cleaning fluid to the snowpipe, which is indirectly or directly connected to a high-pressure pump for discharging , the fluid injection means including a main flow path through which the cleaning fluid flows; A main valve capable of opening and closing a main flow path; and a pressure adjusting unit located upstream of the main valve and capable of adjusting the pressure of the cleaning fluid ; and a pump connection unit detachably connected to the high-pressure pump, and a pipe A cleaning method , wherein the connecting portion is detachably connected to the snowpipe.

  According to the cleaning device and the cleaning method using the same according to the present invention, it is possible to inject the cleaning fluid into the snowpipe using the fluid injection means. Since the fluid injection means is provided with a pressure adjustment unit that can adjust and supply the pressure of the fluid from the high-pressure pump, even if a large amount of deposits are accumulated, the pressure in the pipe is increased. Accordingly, a cleaning fluid can be supplied, and cleaning can be performed without damaging the piping.

Explanatory drawing of piping for snow-melting. FIG. The partial cross section figure of a fluid injection | pouring means.

  The snow extinguishing facility 1 according to one embodiment of the present invention can be used by being buried under asphalt such as a road. According to FIG. 1, the snowpipe 10 constituting the snowplow 1 has a pumped main 11 supplied with groundwater from a pumped well 14 by a pump 15 and a snowpipe 10 after being circulated through the snowpipe 10. It has a water collecting main pipe 12 that returns groundwater to the water collecting well 16, and a radiator pipe 13 that has one end connected to the pumped main pipe 11 and the other end connected to the water collecting main pipe 12. In practice, a large number of the heat radiating tubes 13 are arranged in the lateral direction of the drawing.

  A three-way switching valve 17a is attached to a connecting portion between the pumped water main pipe 11 and the heat radiating pipe 13 via a connecting tube (not shown). Similarly, a connecting portion between the water collecting main pipe 12 and the heat radiating pipe 13 is connected. A three-way switching valve 17b is attached via a tube (not shown). Accordingly, the groundwater in the pumping well 14 is supplied to the heat radiating pipe 13 through the pumping main pipe 11, and the groundwater that has passed through the radiating pipe 13 is returned to the water collecting well 16 through the water collecting main pipe 12.

The heat radiating pipe 13 has a diameter of about 15 to 20 mm, and the length from the three-way switching valve 17a to the three-way switching valve 17b can be about 100 m. The heat radiating tube 13 has a plurality of straight portions 18 and a plurality of curved portions 19 provided between the straight portions 18 so that the straight portions 18 are parallel to each other. The distance between the parallel straight portions 18 is about 150 to 200 mm, and the curvature radius R of the curved portion 19 is about 75 to 100 mm.
Further, the pumping main pipe 11 and the water collecting main pipe 12 have a diameter of about 50 to 100 mm and can have a total length of about 500 m, and a plurality of radiating pipes 13 are arranged in the pumping main pipe 11 and the water collecting main pipe. can do.

Each of the three-way switching valve 17a and the three-way switching valve 17b has three openings, one of the openings is attached with the heat radiating pipe 13, and one is attached with the pumping main pipe 11 or the water collecting main pipe 12. One is used as an inspection port. The inspection port normally allows the inside of the three-way switching valves 17a and 17b to be visually observed without piping or the like being connected.
The three-way switching valves 17a and 17b are provided with flow path switching valves (not shown). During snow-melting when ground water is supplied to the snow-melting pipe 10 to melt snow, the pumping main pipe 11, the radiator pipe 13 and the water collecting pipe The switching valve is switched so that the main pipes 12 communicate with each other. Further, the inspection port and the heat radiating pipe 13 can be communicated with each other by the switching valve.

  In the snow extinguishing equipment 1 as described above, during snow extinguishing, groundwater is supplied from the pumping well 14 to the pumping main pipe 11, the water collecting main pipe 12 and the radiator pipe 13 by the pumping pump 15, and the snow on the road is removed by the heat of the groundwater. Can be solved. During snow-melting, the inspection tube is covered to prevent dust from entering.

  When a scale or the like adheres to the snowpipe 10, the attached material can be removed using the cleaning device 2. Referring to FIGS. 2 and 3, the cleaning device 2 is indirectly or directly connected to the tank 21 in which the cleaning fluid is stored, the high-pressure pump 22 that discharges the cleaning fluid in the tank 21 at a high pressure, and the high-pressure pump 22. Fluid injection means 23. The fluid injection means 23 includes a first member 3 located upstream and a second member 4 located downstream. The first member 3 and the second member 4 are detachable and are kept watertight when connected.

  The first member 3 has a pump connection portion 31 connected to the high-pressure pump 22 and a first connection portion 32 with the second member 4, and the second member 4 is connected to the snow-dissipating pipe 10. It has the pipe connection part 41 and the 2nd connection part 42 with the 1st member 3. As shown in FIG. A so-called quick fluid coupling can be used for the first connecting part 32 and the second connecting part 42, the first member 3 and the second member 4 can be easily attached and detached, and can withstand high pressure. The cleaning device 2 connects the first member 3 and the second member 4, thereby forming a main flow path 5 communicating from the pump connection portion 31 to the pipe connection portion 41.

  The first member 3 is provided with a main valve 33 that can open and close the main flow path 5, and supplies the cleaning fluid from the high-pressure pump 22 to the downstream side by opening the main valve 33. A pressure adjustment unit 34 is provided on the upstream side of the main valve 33, that is, between the pump connection unit 31 and the main valve 33. The pressure adjusting unit 34 is rotatable in the left-right direction in the drawing, and can adjust the pressure of the fluid from the pumping pump 15 by rotation and supply the fluid downstream. Specifically, a variable throttle valve can be used as the pressure adjusting unit 34, and the flow rate of the main flow path 5 can be controlled.

  A pressure gauge 35 for measuring the pressure downstream of the main valve 33 and the pressure gauge 35 between the main valve 33 and the first connecting portion 32 downstream of the main valve 33 of the first member 3. And a safety device 36 that is discharged when the applied pressure exceeds a certain value. The safety device 36 sets a drain portion 36a capable of communicating the main flow path 5 to the outside, a switching valve 36b provided between the drain section 36a and the main flow path 5, and a pressure value when exhausted. And an overload adjusting handle 36c that can be used. When the pressure set by the overload adjustment handle 36c becomes a certain level or more, the switching valve 36b communicates the main flow path 5 and the drain portion 36a and exhausts the main flow path 5. Therefore, even if the pressure rises more than expected, it is possible to prevent excessive pressure from acting on the snowpipe 10.

  A pressure relief valve 37 is provided on the downstream side of the safety device 36, that is, between the safety device 36 and the first connecting portion 32. The pressure release valve 37 can release pressure downstream of the main valve 33 at the closed position of the main valve 33. If an air compressor is connected to the pressure release valve 37 at the open position of the main valve 33, air can be mixed with the cleaning fluid to enable so-called bubble cleaning. It is possible to send only air to the snowpipe 10 without supplying the cleaning fluid.

  A liquid cleaning fluid is separately injected into the second member 4 or a cleaning body 6 such as a pig is injected, and the cleaning fluid and the cleaning body are pressurized and supplied into the snowpipe. You can also As the liquid cleaning fluid injected into the second member 4, for example, a viscous fluid such as a polymer solution of sodium polyacrylate, a surfactant, or the like can be used.

  In the fluid injection means 23 configured as described above, the pipe connection portion 41 of the second member 4 is inserted into one of the inspection ports of the three-way switching valve 17a or 17b, and the cleaning fluid is injected, thereby releasing heat. The tube 13 can be cleaned. Specifically, a male screw is formed in the pipe connecting portion 41, and a corresponding female screw is formed inside the inspection tube. By screwing these together, the fluid injection means 23 is connected to the three-way switching valve 17a. , 17b. When attaching the fluid injection means 23 to the inspection port, the first member 3 and the second member 4 are separated, and only the second member 4 is attached to the snowpipe 10 so that the attachment work can be easily performed. Can do.

  When cleaning the heat radiating pipe 13, the switching valve of the three-way switching valve 17 a is operated, the communication between the pumped main pipe 11 and the heat radiating pipe 13 is cut off, and the heat radiating pipe 13 and the inspection port are communicated. Further, the switching valve of the three-way switching valve 17b is operated, the communication between the water collecting main pipe 12 and the heat radiating pipe 13 is cut off, and the heat radiating pipe 13 and the inspection port are communicated. By switching the three-way switching valves 17a and 17b in this way, the wash water can be supplied from one inspection port to the other inspection port without passing through the pumping main pipe 11 and the water collecting main pipe 12.

  For example, when the fluid injection means 23 is connected to the three-way switching valve 17a, a drain pipe equipped with a flow meter can be attached to the three-way switching valve 17b. Specifically, the drainage pipe includes a member similar to the second member 4 of the fluid injection means 23 provided with a flow meter, and a hose that can be attached and detached from the member in a watertight manner. When the heat radiating pipe 13 is washed by the fluid injection means 23, fluid including scales flows out from the drain pipe, but this is collected through a hose to prevent the roads and the like from being soiled. Further, by providing a flow meter in the drain pipe, the flow rate before cleaning and the flow rate after cleaning can be compared, and the effect of cleaning can be easily confirmed.

  In the cleaning of the snowpipe 10, the fluid injection means 23 includes the pressure adjustment unit 34. Therefore, scales and the like accumulate in the snowpipe 10, and the flow path becomes narrower. When the internal pressure rises, the supply amount from the high-pressure pump 22 can be immediately reduced to suppress the pressure rise.

  Further, since the main flow path 5 is provided with the pressure gauge 35, the pressure adjusting unit 34 can be operated while viewing the pressure. In the snowpipe 10, the heat radiating pipe 13 has a small diameter and a long total length, so that the pressure is likely to rise. Also, even if scales and the like are accumulated inside the snowpipe 10, it is impossible to visually check the inside, and how much pressure rises if the fluid is not supplied Although it is not known at present, according to the fluid injection means 23, it is possible to suppress a rapid pressure increase by including the pressure gauge 35 and the pressure adjusting unit 34. By suppressing the rapid pressure increase, it is possible to prevent breakage of the snowpipe 10. Specifically, it is possible to prevent cracks from occurring in the pumped main pipe 11, the water collecting main pipe 12 and the heat radiating pipe 13, and to prevent these pipes from being detached from the joint portion.

  Even if the adjustment in the pressure adjusting unit 34 is delayed or the pressure in the main flow path 5 rises, the fluid injection means 23 is provided with a safety device 36, and when the pressure exceeds a certain pressure, Since the pressure is exhausted, it is possible to prevent the pressure of the snowpipe 10 from excessively rising.

  A method for cleaning the snowpipe 10 using the fluid injection means 23 will be described. When the heat radiating pipe 13 is washed, the three-way switching valves 17a and 17b are switched to block communication between the pumped main pipe 11, the water collecting main pipe 12 and the heat radiating pipe 13, and the inspection port and the heat radiating pipe 13 are connected to each other. In such an inspection port, for example, a fluid injection means 23 is attached to the three-way switching valve 17a side, and a drain pipe is attached to the three-way switching valve 17b side. In the first stage in which the cleaning fluid is first injected into the heat radiating tube 13, the supply pressure is adjusted by the pressure adjusting unit 34 of the fluid injection means 23 so as to gradually increase. This is because the amount of scale is unknown at this stage to avoid sudden pressure rises. For example, tap water can be used as the cleaning fluid.

  In the first stage, when the cleaning fluid hardly passes through the heat radiating pipe 13 and is closed by deposits such as a scale, the fluid injection means 23 attached to the three-way switching valve 17a is connected to the three-way switching valve 17b. Alternatively, the cleaning fluid may be made to flow backward. This is because the scale may be swept away by causing the cleaning fluid to flow backward in this manner.

Further, when the cleaning fluid hardly passes in the first stage, the first member 3 of the fluid injecting means 23 is removed from the second member 4, and a polymer polymer is separately provided in the main channel 5 located in the second member 4. A viscous fluid such as a solution or a surfactant may be added and supplied to the heat radiating tube 13. Specifically, after an appropriate amount of viscous fluid or the like is put into the second member 4, the first member 3 is connected again, and the cleaning fluid from the tank 21 is pumped to supply the viscous fluid to the radiating pipe 13. can do. By using a viscous fluid or the like in this way, clogging may be eliminated.
Further, when the snow-pumping pipe 10 is blocked by deposits, an air compressor can be connected to the pressure relief valve 37, and air can be mixed with the cleaning fluid for bubble cleaning. The clogging may be eliminated by bubble cleaning.

  In the first stage, when a certain amount of fluid has passed, the process proceeds to the second stage. In the second stage, a cleaning body 6 such as a pig is used. The cleaning body 6 uses a small-diameter cleaning body having a diameter smaller than that of the heat radiating tube 13. In this way, by supplying the small diameter cleaning body in the second stage, the scale and the like in the snowpipe 10 are removed.

In the third stage, the snowpipe 10 is cleaned using a large diameter cleaning body having a diameter larger than that of the small diameter cleaning body. The large diameter cleaning body has a size larger than the diameter of the heat radiating tube 13. By using the cleaning body 6 having a large diameter in this manner, the cleaning body 6 can move while being in close contact with the inner periphery of the heat radiating tube 13, so that more scale and the like can be removed.
As the above-described small diameter cleaning body and large diameter cleaning body, for example, an elastic body such as foaming polyurethane can be used. The small diameter cleaning body and the large diameter cleaning body preferably have a cylindrical shape and are inclined so that the diameter decreases in the traveling direction. Further, it is desirable that the diameter and length of the small diameter cleaning body and the large diameter cleaning body are sized so as to pass through the three-way switching valves 17a and 17b and the curved portion 19 of the heat radiating pipe 13.

  By washing through the first stage, the second stage, and the third stage as described above, it is possible to prevent the heat radiating pipe 13 from becoming a high pressure, and it is possible to remove many deposits. However, when the amount of the deposit is small, the first stage and the second stage can be omitted, or only one of the stages can be adopted depending on the state of the deposit. In addition, any stage of cleaning can be performed multiple times.

Next, the fourth stage process will be described. The fourth stage process is performed separately from the first to third stage processes.
The snow extinguishing equipment 1 circulates groundwater through the snowpipe 10 only during a snowfall season, and the circulation of the groundwater is stopped when this season is over. However, the accumulation of deposits proceeds when the groundwater remains in the snowpipe 10 and is left until the next season. Therefore, when stopping the circulation of the groundwater, it is desirable to drain the groundwater from the snowpipe 10. The fourth stage is a process for removing groundwater.

  In the fourth stage, similarly to the first stage, the three-way switching valves 17a and 17b are switched to cut off the communication between the pumped main pipe 11, the water collecting main pipe 12 and the heat radiating pipe 13, respectively. To communicate. In such an inspection port, for example, a fluid injection means 23 is attached to the three-way switching valve 17a side, and a drain pipe is attached to the three-way switching valve 17b side. The fluid injection means 23 separates the first member 3 and the second member 4, attaches only the second member 4 to the inspection port, and wipes and cleansed body such as a pig for wiping moisture inside the second member 4. Insert. The diameter of the wiped cleaning body is larger than the diameter of the heat radiating tube 13. By using a cleaning body having a large diameter in this way, it is possible to move while closely adhering to the inner periphery of the heat radiating tube 13, so that it is possible to move while wiping off moisture inside the heat radiating tube 13. As the wiping cleaning body, for example, a porous material such as sponge can be used, and the shape thereof preferably has a columnar shape.

  If the wiping cleaning body is put in the inside of the 2nd member 4, the 1st member 3 will be connected. The high-pressure pump 22 is not connected to the tank 21 so that air is supplied to the fluid injection means 23 instead of a liquid cleaning fluid such as water. Alternatively, the main valve 33 is set to the closed position, and air is supplied from the pressure release valve 37 by an air compressor. By supplying air in this way, water can be drained from the snowpipe 10. Furthermore, since moisture in the pipe can be wiped with the wiping and cleaning body, it is possible to prevent moisture from remaining in the pipe and to suppress the generation of deposits. By storing the unused period of the snow removal equipment in this way, it is possible to efficiently remove snow on the road or the like by the snow removal pipe 10 which is not clogged in the next snowfall season.

  According to the cleaning device 2 of this embodiment, it is possible to prevent the snow-dissipating pipe 10 from becoming excessively high in pressure and to sufficiently clean the inside of the pipe. Therefore, even if it is the snow extinguishing equipment 1 in which the snow extinguishing function fell by the clogging of the snow extinguishing pipe 10, the function can be recovered in a short period of time without replacing the pipe. In this embodiment, the cleaning of the heat radiating pipe 13 of the snowpipe 10 has been described in detail. However, in the case where the pumping main pipe 11, the water collecting main pipe 12 and the heat radiating pipe 13 are connected by a connecting tube. Can also wash the connecting tube. Moreover, the pumping main pipe 11 and the water collecting main pipe 12 can be washed by switching the three-way switching valves 17a and 17b.

  Since the fluid injection means 23 can be installed using the inspection ports of the three-way switching valves 17a and 17b, there is no need to process the snow-pumping pipe 10 for cleaning. Since the fluid injection means 23 can be divided into the first member 3 and the second member 4, the fluid injection means 23 can be easily attached to the snow extinguishing pipe 10, and a cleaning fluid and a cleaning body are separately provided in the second member 4. It can be inserted and supplied to the snowpipe.

In addition to the materials described in the present specification, various known materials that are usually used in this type of field can be used for each constituent member constituting the cleaning device 2 without limitation.
In the specification and claims of this invention, the terms “first” and “second” are used merely to distinguish between like-named elements, positions, and the like.

DESCRIPTION OF SYMBOLS 1 Snow extinguishing equipment 2 Cleaning apparatus 3 1st member 4 2nd member 5 Main flow path 10 Snow piping 11 Lifting main pipe 12 Catchment main pipe 13 Radiation pipe 15 Pumping pump 18 Straight line part 19 Curved part 21 Tank 22 High pressure pump 23 Fluid injection means 31 Pump connection portion 32 First connection portion 34 Pressure adjustment portion 36 Safety device 41 Pipe connection portion 42 Second connection portion

Claims (5)

A cleaning device for a snowpipe for injecting a cleaning fluid from one of snowpipes buried in a road or the like and cleaning the inside of the snowpipe,
A fluid injection means for supplying the high-pressure cleaning fluid to the snowpipe, which is indirectly or directly connected to a high-pressure pump that discharges the cleaning fluid at a high pressure ;
The fluid injecting means includes a pump connection portion detachably connected to the high pressure pump, a pipe connection portion detachably connected to the snow-melting pipe, and the pump connection portion and the pipe connection portion. A main flow path that is located and through which the cleaning fluid flows, a pressure gauge that measures the pressure of the main flow path, and a safety device that discharges when the pressure measured by the pressure gauge exceeds a certain value. A cleaning device for snow-pipe for featured snow. A cleaning device for a snowpipe for injecting a cleaning fluid from one of snowpipes buried in a road or the like and cleaning the inside of the snowpipe,
A fluid injection means for supplying the high-pressure cleaning fluid to the snowpipe, which is indirectly or directly connected to a high-pressure pump that discharges the cleaning fluid at a high pressure ;
The fluid injecting means includes a pump connection portion detachably connected to the high pressure pump, a pipe connection portion detachably connected to the snow-melting pipe, and the pump connection portion and the pipe connection portion. A main flow path through which the cleaning fluid flows; a main valve capable of opening and closing the main flow path; and a pressure adjusting unit positioned between the pump connection portion and the main valve and capable of adjusting the pressure of the cleaning fluid ; An apparatus for cleaning a snow-dissipating pipe, comprising: 3. The snow extinguishing unit according to claim 1, wherein the fluid injecting means is connected to either the pumping main or the water collecting main of the snow extinguishing pipe through the pipe connecting portion. Pipe cleaning equipment. A method for cleaning a snow-pumping pipe, injecting a cleaning fluid from one side of a snow-pumping pipe buried in a road or the like, and cleaning the inside of the snow-pumping pipe ,
Using fluid injection means for supplying the high-pressure cleaning fluid to the snowpipe pipe indirectly or directly connected to a high-pressure pump that discharges the cleaning fluid at high pressure ;
The fluid injection unit includes a main flow path wherein the cleaning fluid flows, a pressure gauge for measuring the pressure of the main flow passage, the pressure measured by the pressure gauge and discharge pressure safety device when a certain value or more And a pump connection part detachably connected to the high-pressure pump, and a pipe connection part detachably connected to the snow-pumping pipe . A method for cleaning a snow-pumping pipe, injecting a cleaning fluid from one side of a snow-pumping pipe buried in a road or the like, and cleaning the inside of the snow-pumping pipe ,
Using fluid injection means for supplying the high-pressure cleaning fluid to the snowpipe pipe indirectly or directly connected to a high-pressure pump that discharges the cleaning fluid at high pressure ;
Said fluid injection means, wherein comprises a main flow path cleaning fluid flows, said main flow path can be opened and closed main valve, and said main valve situated upstream pressure capable of adjusting the pressure adjusting portion of the washing fluid The cleaning method is characterized in that a pump connection part is detachably connected to the high-pressure pump, and a pipe connection part is detachably connected to the snow-dissipating pipe .

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