WO2019124619A1 - Pipe connector - Google Patents

Abstract

The present invention relates to a pipe connector comprising: an inflow connector having an inflow channel for a fluid formed therein such that a fluid flows in from one end thereof; an outflow connector coupled to the other end of the inflow connector, an outflow channel being formed in the outflow connector for the fluid that has flowed in through the inflow connector; and an acceleration part provided on an inflow channel and an outflow channel for a fluid, which are formed by coupling the inflow connector and the outflow connector, so as to increase the flow velocity of the fluid that has flowed in through the inflow channel, thereby ejecting the fluid at a high velocity toward the outflow channel. Accordingly, the present invention provides a technology capable of instantly generating warm water without requiring a separate preheating time. The present invention is advantageous in that a high-velocity fluid is ejected to a low-velocity fluid staying in a friction space, thereby increasing the type of friction between water molecules; the resulting vortex increases the surface friction at the boundary layer of the pipe wall, thereby heating the fluid inside the conduit without any separate heating source; warm water is generated by converting the kinetic energy of the fluid into thermal energy, instead of increasing the water temperature by a heating source such as a boiler, such that water temperature can be increased more instantly without going through a preheating process; and warm water can be generated continuously or intermittently, thereby substantially reducing elements of energy waste.

Description

Piping connector

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a piping connector for generating a vortex in a pipeline to raise the water temperature.

Generally, when cleaning an object such as a vehicle, a washing machine capable of spraying high-pressure hot water to the object is used. As is known, the cleaner is a cleaning device that removes impurities remaining on the surface or inside of the object using hot water to be sprayed.

Such a washing apparatus is typical of a washing machine for washing clothes such as clothes. For commercial use, it is used for washing a vehicle, cleaning inner and outer walls of a building, washing a chemical tank in a chemical plant, and removing grease in mechanical parts such as heavy equipment do.

At this time, the hot water to be sprayed is preferably sprayed by being heated to an appropriate temperature in order to improve the cleaning efficiency, as well as taking the safety of the user into consideration.

FIG. 1 is a schematic view showing a high temperature and high pressure washing machine disclosed in Korean Registered Patent No. 10-1472547 entitled "High Temperature and High Pressure Washer capable of Hot Water Spraying (Notification Date: Dec. 17, 2014, Patentee: 1 is a view showing a configuration of a washing machine for spraying high-pressure hot water.

As shown in FIG. 1, the conventional vehicle washing machine according to the related art has a configuration of a hot water boiler part 12 for heating cold water supplied through a cold water supply connection pipe 11 through a heat exchanger tube wound several times, Pressure pump 13 for discharging the high-pressure and high-temperature hot water generated by the high-pressure and high-temperature pump 13 to the vehicle.

However, since the hot water provided by the above-described conventional techniques requires a preheating time for heating, there is a problem that the hot water can not be supplied timely, and the energy required to always operate the heating source It has a waste element.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a technique capable of generating hot water immediately without requiring a separate preheating time.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus and method for controlling the same.

In order to achieve the above object, according to one aspect of the present invention, there is provided an inflow connector in which a fluid inflow path is formed therein, An outflow connector coupled to the other end of the inflow connector and having an outflow path for fluid introduced through the inflow connector; And an accelerating portion provided to increase a flow rate of the fluid introduced through the inflow path on the inflow path and the outflow path of the fluid formed by combining the inflow connector and the outflow connector and to inject the high speed fluid toward the outflow path side; .

The outflow path has a friction space whose radius is extended at a portion facing the acceleration portion side, so that the fluid ejected from the acceleration portion can generate friction due to vortex in the friction space.

Further, the acceleration part may have an acceleration path of a smaller diameter than the outflow path formed therein.

In the acceleration portion, an extended acceleration passage having a structure in which the radius of the passage is extended may be formed at the end of the acceleration passage.

Further, the outflow path may be formed to have a diameter smaller than the diameter of the acceleration path.

The outflow connector may be formed as an uneven surface of a shape protruding or drawn along the outflow path on the inner circumferential surface.

Further, the acceleration portion may be formed integrally with the outlet connector, or may be formed separately from each other.

The mesh filter may further include a mesh filter installed in the friction space in a direction crossing the outflow path and having a through hole formed therein in a direction in which fluid flows.

Further, it may further include a spherical shaped flow ball interlocked with the flow of the fluid in the friction space.

The outflow connector may be made of a material having a low thermal conductivity or may be provided with a heat insulating member having a low thermal conductivity along the outflow path.

The solution of the above-mentioned problems is merely illustrative and should not be construed as limiting the present invention. In addition to the exemplary embodiments described above, there may be additional embodiments described in the drawings and the detailed description of the invention.

As described above, the present invention has the following effects.

First, by injecting a high-speed fluid to a low-speed fluid staying in the friction space, it is possible to increase the frictional force between the water molecules and increase the surface frictional force at the boundary layer of the pipe wall by the generated vortex, The heating effect of the fluid can be obtained.

Second, unlike raising the water temperature through a heating source such as a boiler, the kinetic energy of the fluid is converted into thermal energy to generate hot water, so that the water temperature can be raised more promptly without preheating, It can be generated continuously or intermittently, and it can greatly reduce the wasteful energy of the energy.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a front sectional view showing the structure of a high-pressure washer of Patent Document (0001).

2 is an exploded perspective view showing the entire construction of a piping connector according to an embodiment of the present invention.

3 is an exploded cross-sectional view illustrating a coupling structure of a piping connector according to an embodiment of the present invention.

4 is a view showing a principle of vortex formation of a piping connector according to an embodiment of the present invention.

5 is a view showing the principle of vortex formation when the diameter of the outflow path relative to the acceleration path is reduced according to an embodiment of the present invention.

6 is a view showing a principle of generating a vortex due to a structural change of an acceleration path formed in an acceleration part according to an embodiment of the present invention.

7 is a view showing the principle of generating a vortex due to a structural change of a friction space according to an embodiment of the present invention.

8 is a view showing the principle of generating a vortex due to a change in the shape of the inner circumferential surface of the outflow connector according to the embodiment of the present invention.

9 is a view showing the construction of a pipe connector to which a mesh filter and a flow ball structure according to another embodiment of the present invention is attached.

10 is a view showing the construction of a piping connector provided with a heat insulating member according to another embodiment of the present invention.

[Description of Symbols]

100: Piping connector

110: inlet connector

111: Acceleration part receiving groove

111a: Acceleration part fitting groove

112: inlet tightening groove

113: O-ring crimping groove

IR: Inflow path

120: acceleration part

121: Support jaw

122: inserting jaw

AR: with acceleration

EAR: Extended Acceleration

130: Outflow connector

131: Friction space

132: Accelerated partial securing jaw

133:

134: O-ring receiving groove

136: Outflow tightening groove

137: uneven surface

OR: outflow route

140: Nipple

150: O ring

200: Piping connector

210: Mesh filter

211: Through hole

212: spill home

220: Flowed beads

300: Piping connector

310:

The preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings, in which the technical parts already known will be omitted or compressed for simplicity of explanation.

First, all components constituting the piping connector will be described before explaining the water temperature raising function and the enhanced mixing process performed by the piping connector of the present invention.

FIG. 2 is an exploded perspective view illustrating an entire configuration of a piping connector according to an embodiment of the present invention, and FIG. 3 is an exploded cross-sectional view illustrating a coupling structure of a piping connector according to an embodiment of the present invention.

As shown in FIGS. 2 and 3, the piping connector 100 of the present invention increases the shape frictional force between water molecules by jetting a high-speed fluid along a flow of fluid into a low-speed fluid through a change in the diameter of a channel Of course, disturb the normal streamline of the fluid and allow the boundary layer to separate, allowing the fluid to vortex in the channel. As a result, a considerable amount of form frictional force and surface frictional force are formed in the pipeline, and the water temperature of the fluid can instantly be raised.

The piping connector 100 of the present invention includes the configuration of the inlet connector 110, the acceleration portion 120, the outlet connector 130, the nipple 140, and the O-ring 150 in order to perform the above- .

The inflow connector 110 has a fluid inflow path IR therein and is connected to a pipe or a hose at one end to form a fluid supply path. The inflow connector 110 includes an acceleration part receiving groove 111, Grooves 112 and o-ring pressing grooves 113. [0035]

The accelerating portion receiving groove 111 is provided in the shape of being drawn along the longitudinal direction of the flow path at the other end of the inlet connector 110 when the inlet connector 110 is supplied with fluid through one end thereof, So as to be accommodated in the fluid path direction.

At this time, the acceleration part receiving groove 111 may be formed with an acceleration part fitting groove 111a for receiving the acceleration part fixing step 132 to be described later.

The inlet connecting groove 112 is formed with a female screw thread to be screwed into the outlet connecting portion 133 of the outlet connector 130 to be described later so that the inlet connector 110 and the outlet connector 130 are firmly coupled .

The O-ring pressing groove 113 receives the O-ring 150 to be described later, which is provided for water tightness at the joint portion between the inlet connector 110 and the outlet connector 130, and has a shape corresponding to the shape of the O- Respectively.

The acceleration part 120 is formed at the other end of the inlet connector 110, that is, in the acceleration part receiving groove 111, and an acceleration path AR having a reduced diameter of the inflow path IR is formed therein. IR to rapidly raise the flow velocity of the fluid and inject the fluid into the outflow route OR to form the supporting jaw 121 and the fitting jaw 122 for forming the supporting force.

The support jaw 121 extends from the side of the acceleration part 120 in a direction transverse to the acceleration path AR so that when the inflow connector 110 and the outflow connector 130 are coupled, And the acceleration partial securing step 132, thereby supporting the load in the direction of the acceleration path AR by the water pressure.

The fitting jaw 122 extends from the main body of the acceleration part 120 in the direction of the acceleration path AR and is seated in the acceleration part fitting groove 111a described above so that the direction in which the acceleration path 120 intersects the acceleration path AR .

It is a matter of course that the corner portions of the supporting jaw 121 and the fitting jaw 122 are rounded to facilitate the process of fitting the acceleration portion 120 into the inlet connector 110.

As shown in the drawing, the inlet connector 110 and the acceleration part 120 may be separately provided and used. Alternatively, the inlet connector 110 and the acceleration part 120 may be integrally manufactured, It is obvious that it is included in.

The outflow connector OR is formed in the outflow connector 130 and is connected to the other end of the inlet connector 110 so that one end thereof is connected to the outflow path OR of the fluid injected by the acceleration portion 120 As well as to create a frictional structure for the outflowing fluid so that a high velocity fluid ejected from the accelerating portion 120 can be injected into the low velocity fluid.

To this end, the outflow connector 130 includes the configuration of the friction space 131, the acceleration part fixing jaw 132, the outflow coupling part 133, the O-ring receiving groove 134 and the outflow coupling groove 136.

The friction space 131 is a space formed by extending the radius of the outflow route OR to a portion facing the accelerating portion 120 side, 120 to form a swirling motion of the fluid due to the speed difference.

The accelerating portion fixing jaw 132 is extended from one end of the outflow connector 130 to press the supporting jaw 121 of the acceleration portion 120 to move the supporting jaw 121 of the accelerating portion 120 to the inlet connector 110 and the outflow connector 130, respectively.

The outflow connection part 133 extends from one end of the outflow connector 130 and is formed with a male thread on the outer circumference and is screwed to the inflow connection groove 112. Thus, .

The O-ring receiving groove 134 is formed in a shape drawn in a side of one end of the outflow connector 130 to receive the O-ring 150, which will be described later.

The outflow connection groove 136 is provided at the other end of the outflow connector 130 in the direction of the outflow route OR so that a thread is formed so that the nipple 140 to be described later can be coupled.

The nipple 140 is a pipe joint having a male thread cut at both ends in the longitudinal direction, and is provided for connecting the outflow connector 130 to the pipe or the hose.

The O-ring 150 is made of a synthetic resin material and is sandwiched between the O-ring compression groove 113 and the O-ring receiving groove 134 to tightly seal the leakage path between the inlet connector 110 and the outlet connector 130.

The water mills related to the O-ring 150 used in the piping connector 100 of the present invention can be installed and used in a plurality of water leakage paths, and a detailed description thereof will be omitted.

In the following, the shape friction and surface friction generation principle by the vortical flow of the piping connector of the present invention will be described.

FIG. 4 is a view showing a principle of forming a vortex flow in a pipe connector according to an embodiment of the present invention, and FIG. 5 is a view showing a vortex formation principle when a diameter of an outflow passage is reduced according to an embodiment of the present invention. FIG. 6 is a view showing a principle of vortex generation due to a structural change of an acceleration path formed in an acceleration part according to an embodiment of the present invention, and FIG. 7 is a view showing a structural change of a friction space according to an embodiment of the present invention FIG. 8 is a view showing the principle of generating a vortex due to a change in the shape of the inner circumferential surface of the outflow connector according to the embodiment of the present invention.

As shown in FIG. 4, the piping connector 100 according to the present invention is configured such that the fluid accelerated through the acceleration part 120 is injected into the fluid lowered in speed by the retention in the friction space 131, To increase the temperature of water and to expand the flow path of the fluid and disturb the boundary layer through the disturbance of the normal stream of the fluid so that the fluid vortexes the fluid to generate a considerable form friction and surface friction, It can be instantaneously raised.

Specifically, since the outflow route OR formed by the outflow connector 130 forms a horizontal pipe, it can be assumed that the density of the fluid is constant and is a fully developed steady-state flow. At this time, the flowing fluid has a constant viscosity and frictional force acts because of viscosity.

In a straight tube, surface friction occurs between the fluid and the channel surface, but additional friction is generated as the flow rate or flow rate changes. Such friction, which is caused by flow echoes or changes in flow velocity, is called shape friction, and its influence can not be calculated accurately, so it relies on experimental data.

In the case where the cross section of the flow path is rapidly enlarged as in the embodiment of the present invention, the space between the expansion jet (the end of the acceleration part 120) and the flow path is filled with a fluid A considerable amount of shape friction occurs in this space.

The frictional loss h _fe due to the rapid expansion of the cross section appears in proportion to the velocity head in the small flow path.

 Ke: expansion loss coefficient

 Va: Average flow rate in the small passage

As shown in FIG. 4, only the fluid on the inner surface of the large flow path between the cross-sections A-A 'and B-B' in the horizontal ring extension pipe, and the general flow condition is turbulent flow.

Since the tube is horizontal, there is no gravity, the tube is relatively short, and there is little velocity gradient in the tube wall, so that the wall friction (surface friction) is negligible. The friction loss (h _f ) in the Bernoulli equation includes both surface friction and shape friction due to eddy currents. Therefore, in this case, it is considered that the pressure drop due to the shape friction is all. In this case, shape friction can not be distinguished in the momentum balance. The influence of shape friction is included in the change of pressure and fluid momentum, but it can not be distinguished. The loss of mechanical energy due to friction (h _f ) helps to distinguish it from the pressure drop and is a measure of fluid momentum loss.

Referring to FIG. 5, when the cross-section of the flow path is sharply reduced, the fluid is not attached to the wall because it can not flow along the wall due to the flow attached to the wall through the sharp edge. A jet is formed and flows into a small cross-sectional stagnant fluid. The jet initially contracts and then expands again to fill the small cross section, and the normal velocity distribution is restored again at the contraction point (C-C).

The friction loss due to the rapid reduction is also proportional to the velocity head of the small flow path.

Kc = contraction loss coefficient can not be estimated theoretically. According to the experiment, laminar flow is <0.1 and can be neglected,

.

 4 and 5, when the cross-section of the flow path is expanded or contracted, the normal flow line of the fluid is disturbed, the boundary layer is separated, and the fluid is vortically flowed, so that the shape frictional force can be generated. Since a frictional space 131 is separately formed at a portion where the flow path is expanded or contracted, a considerable amount of frictional force due to the swirling motion of the fluid in the friction space 131 is added, and instantaneous temperature rise Can be expected.

Further, as described above, when the end of the outflow path is opened in the structure in which the cross section of the flow path extends, the fluid injected by the acceleration part 120 can not stay in the friction space 131, The end of the outflow path is opened and the outlet end of the outflow path OR is opened as in the case of the pipe connector 100 of the present invention, It is expected that the expected effect of water temperature synergies will be obtained if it is used as an unconnected connector.

On the other hand, in the structure in which the cross section of the flow path is reduced, the fluid injected by the acceleration part 120 stays in the friction space 131 and can be expected to have a desired effect of increasing the temperature of the water. It goes without saying that, for example, it is also possible to use the nozzle of the present invention with the structure of the piping connector 100 of the present invention added to the cleaning gun of the washing machine.

6, the cross section of the end of the acceleration passage AR is formed in an expanded shape, thereby further disturbing the normal flow line of the fluid, and further expanding the friction space 131 to increase the swirling motion of the fluid Which can be expected to result in improved water temperature synergies.

More specifically, an extended acceleration path EAR is formed at the end of the acceleration path AR, the diameter of which is enlarged. At this time, by making the diameter of the extended acceleration path EAR correspond to the diameter of the outflow path OR, The water stream injected through the acceleration path AR can be introduced into the outflow path OR to expand the friction space 131 without violating the flow of the fluid, Shaped friction force and surface friction force.

Referring to FIG. 7, the shape and structure of the friction space 131 are different from each other, and an additional effect of increasing the temperature of the water due to vortical flow can be expected.

Specifically, the structure of the friction space 131 is elongated along the outflow route OR to increase the shape frictional force due to the convection or retention of the fluid injected by the acceleration part 120, At this time, the length of the friction space 131 is preferably set in consideration of the injection pressure of the fluid injected by the acceleration part 120.

In addition, since the shape of the friction space 131 is provided so as to eliminate a blind spot generated when the fluid convects, smooth vortex flow (high-speed rotation) is realized, and the effect of increasing the temperature by the shape frictional force can be expected to be.

The shape of the friction space 131 is preferably set according to the magnitude of the frictional force generated between the fluids and the friction force between the fluid and the inner circumferential surface of the friction space 131. For example, if the fluid and the surface frictional force on the inner circumferential surface of the frictional space 131 can be formed to be larger than the frictional force generated between the fluids, it is preferable to extend without consideration of the blind space of the frictional space 131, If it can be formed larger than the shape frictional force, on the contrary, it is desirable to reduce the blind spot.

8, the inner circumferential surfaces of the friction space 131 and the outflow path OR increase the surface friction of the fluid in the path, and the irregular surface 137, which separates the boundary layer to accelerate swirling flow of the fluid, Can be formed.

Specifically, protrusions or recesses are formed in the inner circumferential surface of the outflow connector 130 for generating a swirling flow for raising the water temperature at regular intervals along the flow of the fluid, and are formed along the inner circumferential surface of the outflow connector 130 It is possible to increase the surface frictional force of the flowing fluid and to separate the fluid from the boundary layer on the inner circumferential surface so that the effect of increasing the water temperature by the vortical flow can be expected.

Hereinafter, a further configuration capable of adding a deep eddy flow of the fluid together with the basic structure of the piping connector of the present invention will be described.

9 is a view showing the construction of a pipe connector to which a mesh filter and a flow ball structure according to another embodiment of the present invention is attached.

9, the pipe connector 200 according to another embodiment of the present invention can be used in the friction space 131 with the structure of the mesh filter 210 and the structure of the flow ball 220 added thereto.

The mesh filter 210 is provided on the front end of the outflow route OR in the friction space 131 of the outflow connector 130 by providing a plurality of air gaps, i.e., through holes 211, To flow along the through hole 211, thereby disturbing the normal stream of the fluid and separating the boundary layer, thereby further deepening the swirling flow of the fluid.

Here, the mesh filter 210 is made of a synthetic resin material having a certain strength or a metal material, and is preferably made of stainless steel (SUS) in consideration of being installed in the flow path. It is preferable that the through hole 211 is formed to have a diameter or a wide diameter close to the diameter of the acceleration part 120 so that the tip of the through hole 211 is formed in a wired form so as not to interfere with the flow of the fluid Do.

In the meantime, the structure of the flow ball 220 in the friction space 131 of the outflow connector 130 may accelerate the swirling flow of the fluid in the friction space 131, and thus the effect of increasing the water temperature may be expected.

Specifically, in consideration of being installed in the flow passage, the flow beads 220, which are made of stainless steel, are formed with a larger diameter than the outflow route OR and flow together by the vortex or convection of the fluid in the friction space 131, So that the boundary layer from the channel surface can be separated.

At this time, it is preferable to remove the remaining blind spots excluding the convection path of the fluid in order to alleviate the stagnation of the flow beads 220 in the blind spot of the fluid flow by the flow of the fluid In order to reduce the stagnation of the flow of fluid by blocking the through holes 211 of the mesh filter 210, the flow beads 220 are formed in the through holes 211 with a plurality of It goes without saying that the outflow groove 212 may be formed.

Hereinafter, the effect of increasing the water temperature by the vortical flow generated by the piping connector of the present invention will be described.

In general, a high-pressure washer for cleaning objects such as a vehicle supplies hot water heated to a temperature used by a boiler through a water purifier and injects the water through a cleaning gun corresponding to the nozzle, .

The high-pressure washer equipped with the piping connector 100 of the present invention can raise the temperature of the hot water supplied to the pipeline between the water pump and the washing gun, and the temperature of the hot water, which is heated in the boiler and supplied to the water pump, It can be provided at a low temperature.

 division Supply water temperature Water temperature in the water pump Runoff temperature Flow time (4ℓ) Common nozzle 20 ℃ 31 C 26 ℃ 30 seconds When installing the connector 20 ℃ 31 C 33 C 30 seconds

Referring to Table 1, in the case of the high-pressure washer without the pipe connector 100, the water temperature of the washing liquid supplied to 20 ° C rises to 31 ° C through the water heater, which is a heating element, .

However, when the piping connector 100 of the present invention was installed between the water pump and the cleaning gun, it was measured that the cleaning liquid which rose to 31 占 폚 through the water pump was sprayed through the cleaning gun at a water temperature of 33 占 폚.

In addition, the flow rate was equal to 30 seconds in the case where the piping connector was installed or not installed, based on 4 liter.

Therefore, when the pipe connector 100 is installed, it can be seen that the temperature increase effect is about 7 캜 without loss of the flow amount. The amount of water flowing seems to be the same irrespective of whether or not the pipe connector 100 is installed because the entrance radius and the exit radius of the supplied hot water are equal.

The result of Table 1 is a water temperature rise value measured only by the basic structure of the piping connector 100 shown in FIG. 3, and is different from that of the piping connector 100 shown in FIGS. 5 to 8, As shown in Fig. 9, if the configuration of the mesh filter 210 and the flow ball 220 is added, it is apparent that the increase in the temperature will be further improved.

On the other hand, apart from the expectation of a temperature increase effect through a change in the structure of the piping connector 100 of the present invention or a further constitution thereof, a thermal insulation function is added to the piping connector 100 to reduce the loss of the increased water temperature, So that the temperature of the fluid to be used can be raised.

10 is a view showing a structure in which a heat insulating member according to another embodiment of the present invention is installed.

10, a heat insulating member 310 having a low thermal conductivity may be additionally provided inside the outflow connector 130 of the piping connector 300 of the present invention so that the friction space 131 and the outflow path OR ) Can reduce the external heat dissipation of the heat conducted at the elevated water temperature.

Here, in the piping connector 300 according to another embodiment, the structure of the heat insulating member 310 is provided inside the outflow connector 130, but the outflow connector 130 itself can be used as a heat insulating material with low thermal conductivity. Of course.

As a result, by spraying the high-speed fluid to the low-speed fluid staying in the friction space, the shape frictional force between the water molecules is increased, and the surface frictional force in the boundary layer of the pipe wall is increased by the generated eddy current, The heating effect of the fluid can be obtained and the temperature of the fluid is increased by converting the kinetic energy of the fluid into heat energy to generate the hot water instead of raising the water temperature through the heating source such as the boiler, In addition, the hot water can be generated continuously or intermittently, thereby significantly reducing the wasteful energy.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. And the scope of the present invention should be understood as the scope of the following claims and their equivalents.

Claims (10)

An inflow connector in which a fluid inflow path is formed inside and a fluid flows from one end; An outflow connector coupled to the other end of the inflow connector and having an outflow path for fluid introduced through the inflow connector; And An accelerating portion provided to increase the flow rate of the fluid introduced through the inflow path on the inflow path and the outflow path of the fluid formed by combining the inflow connector and the outflow connector and to discharge the high speed fluid to the outflow path side; Included Piping connector. The method according to claim 1, The outflow path includes: Characterized in that the fluid ejected from the acceleration portion generates friction by vortex in the friction space by having a friction space whose radius is extended at a portion facing the acceleration portion side Piping connector. The method according to claim 1, The acceleration portion And an acceleration path having a diameter smaller than that of the outflow path is formed inside Piping connector. The method according to claim 1, The acceleration portion And an extended acceleration passage having a structure in which the radius of the passage is extended is formed at an end of the acceleration passage Piping connector. 3. The method of claim 2, The outflow path includes: Is formed with a diameter smaller than the diameter of the acceleration passage Piping connector. The method according to claim 1, Wherein the outlet connector comprises: And an uneven surface of a shape protruding or drawn along the outflow path on the inner circumferential surface thereof. Piping connector. The method according to claim 1, The acceleration portion Are formed integrally with the outflow connector or are formed separately from each other. Piping connector. The method according to claim 1, And a mesh filter installed in the friction space in a direction transverse to the outflow path and having a through hole formed in a direction in which fluid flows, Piping connector. The method according to claim 1, And a spherical shaped flow ball interlocking with the flow of the fluid in the friction space Piping connector. The method according to claim 1, Wherein the outlet connector comprises: And a heat insulating member made of a material having a low thermal conductivity is provided along the outflow path Piping connector.

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