KR102460339B1 - Impeller for leak blocking and Blower using the impeller - Google Patents

Abstract

The leak-blocking impeller according to an embodiment of the present invention includes a rotating plate in the form of a disk, a gas boosting unit in which a plurality of blades are spaced apart between the ring-shaped outer and inner walls formed on the outside of the rotating plate, and the outer wall and the inner wall A plurality of first grooves are formed in at least one of the sidewalls to include a blocking unit for preventing the gas pressurized by the gas boosting unit from leaking. Accordingly, it is possible to prevent the gas pressure from being lowered by forming a blocking part and an auxiliary blocking part on the impeller to prevent gas from leaking into the gap between the impeller and the casing.

Description

Impeller for leak blocking and blower using the impeller

The present invention relates to an impeller for blocking leakage and a blower using the same, and more particularly, a technique for increasing the pressure in the blower using an impeller of an improved structure is disclosed.

In general, a ring blower is a mechanical device widely used in industrial sites and machines that require high pressure air, and is also called a regenerative blower, and its official name is a regenerative type turbo-machinery. to be.

These ring blowers are designed and manufactured in various sizes and structures according to the intended use and performance. As a fluid machine capable of producing a large lift at a small flow rate, it is frequently used for air supercharging in small and medium-sized equipment requiring low flow rate and high pressure. is rising It is widely used in industrial automation devices that require air power, such as industrial high-pressure blowers that require high pressure, septic tanks in sewage and wastewater treatment plants, and oxygen supply in farms.

Among the prior art, Korean Patent Publication No. 10-2011-0006413 (published on January 20, 2011) discloses a first casing and a second casing coupled to each other to form an accommodation space therein, and the first casing and and an impeller installed in the receiving space between the second casings and rotated by a motor, wherein the first casing and the second casing each have a flow path groove formed along a circumferential direction on an inner surface facing the impeller, and the flow path groove When the first casing and the second casing are combined at both ends of the inlet and outlet forming parts in the form of grooves forming one inlet and outlet are provided, the impeller is a pressure feeding channel with the channel grooves on both sides in the circumferential direction. It is a technical feature to provide a side channel type regeneration blower in which a flow groove forming a flow groove is formed, and a plurality of vanes are provided at predetermined intervals inside the flow groove.

In the regeneration blower configured as described above, when the impeller is rotated by the motor, the conveying force by the vane and the flow groove is applied to the gas inside the pressure feeding channel to convey the gas from the inlet to the outlet.

However, the prior art has a limit in increasing the pressure of the gas generated in the flow path because the impeller is formed in a structure in which only a single type is installed. In addition, there is a problem in that the quality of the product is deteriorated because the gas leaks between the gap between the casing and the outer side of the impeller, and there is a lot of transport loss due to the pressure drop.

The technical problem to be solved by the present invention is to provide a leak-blocking impeller and a blower using the same, which can prevent gas from leaking through the gap between the casing and the impeller outside.

In addition, it is to provide a leak-blocking impeller and a blower using the same, in which the impeller is installed in multiple stages and the gas passing therethrough can increase the pressure to high pressure.

The leak-blocking impeller according to an embodiment of the present invention includes a rotating plate in the form of a disk, a gas boosting unit in which a plurality of blades are spaced apart between the ring-shaped outer and inner walls formed on the outside of the rotating plate, and the outer wall and the A plurality of first grooves are formed in at least one of the inner walls and include a blocking unit for preventing the gas pressurized by the gas boosting unit from leaking.

In addition, it protrudes in a ring shape between the central axis of the rotating plate and the gas boosting part, a plurality of second grooves are formed on one side may further include an auxiliary blocking part to prevent gas leakage.

In addition, the first groove and the second groove may be formed in any one of a triangular, square, and trapezoidal cross-section.

On the other hand, the blower using the leak-blocking impeller according to another embodiment of the present invention is a gas boosting unit in which a plurality of blades are spaced apart between a circular plate-shaped rotating plate and a ring-shaped outer wall and an inner wall formed on the outside of the rotating plate and A plurality of first grooves are formed in at least one of the outer wall and the inner wall, and the impeller including a blocking unit for preventing the gas pressurized from the gas boosting unit from leaking is coupled to each other by a plurality of casings having flow path grooves formed therein and a body for accommodating at least one or more impellers therein, and a driving unit for rotating the impeller from one side of the body.

In addition, the casing may have a plurality of third grooves formed at positions opposite to the first grooves of the gas boosting unit.

Accordingly, it is possible to prevent the gas pressure from being lowered by forming a blocking portion and an auxiliary blocking portion on the impeller to prevent gas leakage between the casing and the gap on the outside of the impeller.

In addition, the impeller is installed in multiple stages to increase the pressure generated by the pump to improve the quality of the product.

1 is a block diagram of an impeller for blocking leakage according to an embodiment of the present invention.
FIG. 2 is an exemplary view for explaining the impeller for blocking leakage according to FIG. 1 .
3 is a cross-sectional configuration diagram for explaining a blower using the leak-blocking impeller according to FIG. 1 .
4 is a detailed configuration diagram of a blower using the leak-blocking impeller according to FIG. 3 .
5 is an exemplary view for explaining the body portion of the blower using the leak-blocking impeller according to FIG. 3 .
6 is an exemplary view for explaining that the third casing is added to the body part of the blower using the leak-blocking impeller according to FIG. 3 .
7 is an exemplary view for explaining a modified example of the casing of the blower using the leak-blocking impeller according to FIG. 3 .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms used are terms selected in consideration of functions in the embodiment, and the meaning of the terms may vary depending on the intention or precedent of the user or operator. Therefore, the meaning of the terms used in the embodiments to be described below, when specifically defined in the present specification, follow the definition, and when there is no specific definition, it should be interpreted as a meaning generally recognized by those skilled in the art.

1 is a block diagram of an impeller for blocking leakage according to an embodiment of the present invention, and FIG. 2 is an exemplary view for explaining the impeller for blocking leakage according to FIG. 1 .

1 and 2 , the leak blocking impeller 100 according to an embodiment of the present invention includes a rotating plate 110 , a gas boosting unit 120 , and a blocking unit 130 . Here, the impeller 100 is rotatably mounted on the inside of the blower 200 to be described later. In this case, the blower 200 may be a pump having a structure in which external gas is sucked in by the impeller 100 , the pressure is increased to a high pressure, and then discharged. However, the present invention is not limited thereto and the blower 200 may also be used as a fuel pump. For example, it may be a fuel pump that boosts the liquid fuel introduced therein to a high pressure.

Specifically, the rotating plate 110 may be formed in a disk shape. In this case, the shaft hole 111 may be formed in the center of the rotating plate 110 . The shaft hole 111 is formed to be connected to the rotation shaft 222 of the driving unit 220 to be described later. The rotating plate 110 is rotated together with the rotating shaft 222 receiving power from the driving unit 220 . Preferably, the rotating plate 110 may be formed of a metal material, but is not limited thereto. The rotating plate 110 is integrally formed with the gas boosting unit 120 and the blocking unit 130 to be described later.

The gas boosting unit 120 is formed on the outside of the rotating plate 110 to increase the pressure of the gas while rotating together with the rotating plate 110 . For example, the gas boosting unit 120 includes an outer wall 121 , an inner wall 122 , and a plurality of blades 123 . Here, the gas boosting unit 120 may be formed integrally with the rotating plate 110, but may also be formed in a separable structure. Specifically, the outer wall 121 and the inner wall 122 are formed at the edge of the rotating plate 110 in a ring shape. In this case, the outer wall 121 is formed to protrude from the edge of the rotating plate (110). In addition, the inner wall 122 is formed to form a concentric circle with the outer wall 121, is formed to be spaced apart from the inside of the outer wall 121 by a predetermined interval.

A plurality of blades 123 are formed between the outer wall 121 and the inner wall 122 . A plurality of blades 123 are radially formed in a plate shape along the circumferential direction about the central axis of the rotating plate 110 . The blade 123 may be a partition wall dividing a plurality of the outer wall 121 and the inner wall 122 . In this case, the inner bottom between the blade 123 and the neighboring blade 123 forms a flow groove 123-1, which is a gas circulation space.

For example, the flow groove 123-1 may be formed in a semicircular cross-section, but may be formed in an oval or square shape. That is, it may be formed in a deformed form having a different cross-sectional area in consideration of the flow characteristics of the gas. The flow groove 123-1 serves to increase the pressure of the gas by the rotational friction force when the blade 123 rotates together with the rotating plate 110 by securing a gas circulation space.

The blocking unit 130 prevents the gas pressurized by the gas boosting unit 120 from leaking. The blocking part 130 may be formed on the outer wall 121 or the inner wall 122 . However, the present invention is not limited thereto, and may vary according to a design change of a designer. For example, it may be formed on both the inner wall 122 and the outer wall 121 . For example, the blocking part 130 is formed of a plurality of first grooves 131 . Here, the first concave groove 131 may be formed in any one of a triangular, quadrangular, and trapezoidal cross-section.

' 와 같이 사다리꼴 형태로 형성될 수 있다. 복수의 제1 요홈(131)의 단면은 일측이 경사각을 이루고 타측이 직각으로 이루어진 형상으로 형성될 수 있으나, 이에 한정되는 것은 아니다. 본 발명의 도면에서는 외측벽(121)에 형성된 제1 요홈(131)의 단면이 사다리꼴 형상으로 형성되고, 내측벽(122)의 제1 요홈(131)의 단면이 삼각형으로 형성되도록 도시하고 있으나, 이는 설계자에 의해 그 형상 및 위치는 가변될 수 있다. 이러한, 복수의 제1 요홈(131)은 블로워(200)의 케이싱과 외측벽(121) 및 케이싱과 내측벽(122)의 간극사이로 기체가 누설되는 것을 방지하는 역할을 한다.In this case, the cross-section of the plurality of first grooves 131 is '

It may be formed in a trapezoidal shape as in '. The cross-section of the plurality of first grooves 131 may be formed in a shape in which one side has an inclined angle and the other side has a right angle, but is not limited thereto. In the drawings of the present invention, the cross-section of the first groove 131 formed in the outer wall 121 is formed in a trapezoidal shape, and the cross-section of the first groove 131 of the inner wall 122 is shown to be formed in a triangle, but this The shape and position may be varied by the designer. The plurality of first grooves 131 serves to prevent gas from leaking between the gaps between the casing and the outer wall 121 and the casing and the inner wall 122 of the blower 200 .

For example, when the impeller 100 rotates at a high speed, the gas pressurized by the gas boosting unit 120 may leak through a gap between the inner wall and the outer wall 121 and the inner wall 122 of the casing. At this time, as the first grooves 131 are formed in the outer wall 121 and the inner wall 122, respectively, a vortex is generated inside each groove, thereby generating flow resistance. Accordingly, it is possible to block the gas from leaking to one side of the gas boosting unit 120 .

Moreover, when one side of the first groove 131 formed in the outer wall 121 is formed at a right angle, the gas introduced into the first groove 131 collides with the right angle portion to receive resistance. The gas introduced into the plurality of first grooves 131 continuously collides, thereby reducing the amount of leakage. Accordingly, it is possible to prevent the pressure boosted by the gas boosting unit 120 from being lowered by the gas leaking into the gap between the casing and the outer wall 121 and the casing and the inner wall 122 .

On the other hand, the leakage blocking impeller 100 according to the embodiment of the present invention may further include an auxiliary blocking unit (140). The auxiliary blocking unit 140 is formed to protrude in a ring shape between the central axis of the rotating plate 110 and the gas boosting unit 120 to prevent gas leakage. In this case, a plurality of second recesses 141 are formed on one side of the auxiliary blocking unit 140 . Preferably, the plurality of second concave grooves 141 may be formed in a triangular cross-section, but may also be formed in a rectangular or trapezoidal shape. The plurality of second grooves 141 serves to prevent gas from leaking to an area that does not correspond to the gas boosting unit 120 .

Specifically, the gas pressurized by the gas boosting unit 120 may leak toward the rotating plate 110 rather than the channel groove in the casing. At this time, as the second concave grooves 141 are formed in the outer wall 121, a vortex is generated inside and flow resistance is generated. Accordingly, it is possible to prevent gas from leaking into the gap between the casing and the outer side of the rotating plate 110 . Meanwhile, although it has been described that the gas boosting unit 120 , the blocking unit 130 , and the auxiliary blocking unit 140 are formed on one side of the rotating plate 110 , they may be installed on both sides of the rotating plate 110 .

Hereinafter, a blower 200 using a leak-blocking impeller according to another embodiment of the present invention will be described.

3 is a cross-sectional configuration diagram for explaining a blower using the leak-blocking impeller according to FIG. 1, FIG. 4 is a detailed configuration diagram of the blower using the leak-blocking impeller according to FIG. 3, and FIG. 5 is according to FIG. It is an exemplary view for explaining the body part of the blower using the leak-blocking impeller.

1 to 5 , a blower 200 using an impeller for blocking leakage according to another embodiment of the present invention includes an impeller 100 , a body part 210 , and a driving part 220 . Here, since the impeller 100 has the same configuration and operation as the reference numerals shown in FIGS. 1 to 2 , a repetitive description will be omitted.

The body portion 210 is coupled to each other by a plurality of casings 211 and 212 and includes a first casing 211 and a second casing 212 . The first casing 211 and the second casing 212 are coupled to face each other. FIG. 5A is a view showing one side of the first casing 211 , and FIG. 5B is a view showing the other side of the second casing 212 . Referring to Figure 5 (a), the first casing 211 is formed in a circular cover shape. In this case, the second casing 212 has the impeller 100 mounted therein, and the first casing 211 is coupled to the second casing 212 to rotatably support the impeller 100 .

More specifically, the first casing 211 has a suction port 211-1 formed on one side, and a first flow path groove 211-2 is formed on the other side. The suction port 211-1 protrudes in the form of a tube having a predetermined length, and a first communication hole 211-3 is formed inside to communicate with the first flow path groove 211-2. The first communication hole 211-3 connects the suction port 211-1 and the first flow path groove 211-2, so that the gas sucked in the suction port 211-1 is transferred to the first flow path groove 211-2. It provides a passageway for flow.

The first channel groove 211 - 2 is formed in a ring shape along the circumferential direction from the other side of the first casing 211 . Preferably, the cross section of the first flow path groove 211 - 2 may be formed in a semicircular shape, but may be formed in various ways such as an ellipse, a square or a triangle. In this case, the first flow path groove 211 - 2 may be formed at a position facing the gas boosting unit 120 of the impeller 100 . For example, the first flow groove 211 - 2 may be formed to face the flow groove 123 - 1 of the impeller 100 .

The gas in the first flow groove 211 - 2 may be pressurized by the plurality of blades 123 of the impeller 100 . For example, when the impeller 100 rotates, rotational frictional force is generated by the plurality of blades 123 to increase the pressure of the gas in the first flow path groove 211 - 2 . Then, the gas pressurized in the first flow path groove 211 - 2 is pressurized along the rotational direction of the impeller 100 .

In this case, a first hole 211-21 is formed at one end of the first flow path groove 211-2 to communicate with the first communication hole 211-3 of the suction port 211-1. In addition, a first expansion groove 211-22 is formed at the other end of the first flow path groove 211-2. The first expansion grooves 211-22 are formed to partially extend outward from the other end of the first flow path groove 211-2. For example, the first expansion grooves 211 - 22 are formed to be partially exposed to the outside of the impeller 100 . The first expansion groove 211-22 is the impeller 100 through the outer space of the impeller 100 through the first expansion groove 211-22 gas pressure fed from the first flow groove 211-2. to transport it to the rear end of

Referring to (b) of Figure 5, the second casing 212 has an accommodation space in which the impeller 100 is accommodated therein, a discharge port 212-1 is formed on one side, and a second flow path groove on the other side. (212-2) is formed. In addition, the second casing 212 is formed with a second communication hole 212-3 providing a passage for connecting the discharge port 212-1 and the second flow path groove 212-2 on the inner side.

The second flow path groove 212 - 2 is formed in a ring shape along the circumferential direction on the bottom surface of the second casing 212 . In this case, the second channel groove 212-2 has a second extended groove 212-21 formed at one end and a second hole 212-22 communicating with the discharge port 212-1 is formed at the other end. do. More specifically, the second extended groove (212-21) is formed to face the first extended groove (211-22). The second expansion grooves 212-21 are formed to partially extend outwardly from the other end of the second flow path grooves 212-2.

For example, the second expansion grooves 212 - 21 are formed to be partially exposed to the outside of the impeller 100 . In this case, the second expansion grooves 212-21 are formed so that the high-pressure gas discharged from the first expansion grooves 211-22 flows into the second flow path grooves 212-2 through the outer space of the impeller 100. is formed

The second flow path groove 212 - 2 may be formed to face the gas boosting unit 120 formed at the rear end of the impeller 100 . That is, this is to increase the pressure of the gas in the second flow path groove 212 - 2 . For example, when the impeller 100 rotates, rotational frictional force is generated by the plurality of blades 123 so that the gas in the second flow path groove 212 - 2 is pressurized. Then, the gas of the second flow path groove 212 - 2 is pressurized along the rotation direction of the impeller 100 . In this case, the gas in the second flow channel groove 212-2 may be pressurized twice together with the gas pressurized in the first flow channel groove 211-1.

The discharge port 212-1 discharges the gas pressurized in the second flow path groove 212-2, and is formed on the other side of the second casing 212. The discharge port 212-1 protrudes to the outside of the second casing 212 in the form of a tube, and the gas pressurized in the second flow path groove 212-2 through the inner second communication hole 212-3 is discharged through the discharge port. Discharge to (212-1).

The driving unit 220 rotates the impeller 100 from one side of the body 210 , and includes a motor 221 , a rotating shaft 222 , and a bearing 223 . The motor 221 transmits a driving force to the rotation shaft 222 and may be an electric motor. However, the present invention is not limited thereto, and may be various if the driving force is transmitted to the rotating shaft 222 such as a turbine.

The rotating shaft 222 has one side connected to the motor 221 and the other side connected to the body 210 . In this case, one side of the rotation shaft 222 passes through the second casing 212 and is rotatably mounted to the first casing 211 . At this time, the rotating shaft 222 is connected to the shaft hole 211 of the impeller 100 and rotates by the driving force of the motor 211 to rotate the impeller 100 .

The bearing 223 is installed inside the first casing 211 and inside the second casing 212 , respectively. Preferably, the bearing 223 may be a ball bearing, but may be various as long as it serves to rotatably support the rotation shaft 222 .

6 is an exemplary view for explaining that the third casing is added to the body part of the blower using the leak-blocking impeller according to FIG. 3 .

Referring to FIG. 6 , the body 210 of the blower 200 using the leak-blocking impeller according to the embodiment of the present invention may further include a third casing 213 . The third casing 213 is formed so that the blower 200 has a single structure as well as a two-stage structure in which two impellers 100 are mounted, thereby increasing the gas pressure boosting efficiency. For example, the inside of the third casing 213 is partitioned in a cylindrical shape, and an accommodation space is formed at one partitioned side so that the impeller 100 is mounted, and is coupled to the first casing 211 .

In addition, the partitioned other side of the third casing 213 is formed in the shape of a cover and is coupled to the second casing 212 to which the other impeller 100 is mounted. In other words, the impeller 100 is coupled between the first casing 211 and the third casing 213 and the third casing 213 and the second casing 212 , respectively. However, the present invention is not limited thereto, and it is also possible to form a multi-stage structure in which a plurality of impellers 100 are mounted by coupling a plurality of third casings 213 .

6 (a) is a view showing one side coupled to the first casing (211). Referring to FIG. 6A , the third casing 213 has a third flow path groove 213-1 formed on one side, and a fourth flow path groove 213-2 formed on the other side. In addition, a third communication hole 213-3 connecting the third passage groove 213 - 1 and the fourth passage groove 213 - 2 is formed inside the third casing 213 . More specifically, the third channel groove 213 - 1 is formed in a ring shape along the circumferential direction of the third casing 213 . In this case, the third channel groove 213 - 1 has a third extended groove 213 - 11 formed at one end and a third hole 213 - communicating with the fourth channel groove 213 - 2 at the other end. 12) is formed.

Specifically, the third expansion groove 213-11 is formed on one side of the third casing 213 opposite to the first expansion groove 211-22 of the first casing 211 . In this case, the third extended groove 213-11 is formed so that the high-pressure gas discharged from the first extended groove 211-22 flows into the third flow path groove 213-1 through the outer space of the impeller 100. is formed

The third flow path groove 213 - 1 may be formed to face the gas boosting unit 120 formed in the impeller 100 . That is, this is to increase the pressure of the gas in the third flow path groove 213 - 1 . For example, when the impeller 100 rotates, a rotational friction force is generated by the plurality of blades 123 , so that the gas in the third flow path groove 213 - 1 is pressurized. In addition, the gas of the third flow path groove 213 - 1 is pressurized along the rotation direction of the impeller 100 . In this case, the gas in the third flow path groove 213 - 1 may be pressurized twice together with the gas pressurized in the first flow path groove 211 - 2 .

6 (b) is a view showing one side coupled to the second casing (212). Referring to FIG. 6B , the fourth channel groove 213 - 2 is formed in a ring shape from the other side of the third casing 213 in the circumferential direction. A fourth hole 213 - 21 communicating with the third hole 213 - 12 is formed at one end of the fourth passage groove 213 - 2 . In addition, fourth expansion grooves 213-22 are formed at the other end. In this case, the gas pressurized in the third passage groove 213 - 1 flows to the fourth hole 213 - 21 through the third communication hole 213 - 3 .

In this case, the fourth flow path groove 213 - 2 may be formed to face the gas boosting unit 120 formed in the impeller 100 . That is, this is to increase the pressure of the gas in the fourth flow path groove 213 - 2 . Moreover, the gas pressurized twice in the third flow path groove 213 - 1 may be increased three times while the rotational friction force is generated by the plurality of blades 123 when the impeller 100 rotates.

The gas of the fourth flow path groove 213-2 is pressurized along the rotational direction of the impeller 100 and passes through the outer space of the impeller 100 through the fourth expansion groove 213-22 of the impeller 100. It can be compressed to the rear end. That is, the gas of the fourth flow path groove 213 - 2 may be pressurized to the second flow path groove 212 - 2 of the second casing 212 to increase the pressure four times. Accordingly, the impeller 100 is installed in multiple stages to increase the pressure generated by the pump to improve the quality of the product.

7 is an exemplary view for explaining a modified example of the casing of the blower using the leak-blocking impeller according to FIG. 3 .

Referring to FIG. 7 , the blower 200 using an impeller for blocking leakage according to a modified example of the present invention may have a plurality of third recesses 214 formed on the inner surface of the second casing 212 . Although it is indicated that the third groove 214 is formed in the second casing 212 in the drawing, the formation of the third groove 214 in the first casing 211 or the third casing 213 by design modification is also It is possible.

The plurality of third grooves 214 may be formed to face the outer wall 121 of the impeller 100 . For example, as the third recess 214 is formed on the inside of the second casing 212 , a vortex is generated inside, thereby generating flow resistance. Accordingly, it is possible to prevent gas from leaking into the gap between the second casing 212 and the outer side of the rotating plate 110 . However, the present invention is not limited thereto, and the third groove 214 is on the inner wall 122 of the impeller 100 or the casing 211 , 212 opposite to the second groove 141 of the auxiliary blocking part 140 . can be formed.

The third recess 214 may prevent the gas pressurized by the gas boosting unit 120 from leaking into the gap between the second casing 212 and the outside of the impeller 100 . For example, as the third recesses 214 are formed in the outer wall 121 of the second casing 212 , bending of the gas occurs in the internal space, resulting in flow resistance. Accordingly, it is possible to prevent gas from leaking into the gap between the second casing 212 and the outer side of the rotating plate 110 .

Meanwhile, a coating portion 215 may be formed on an inner wall of the second casing 212 . The second casing 212 and the impeller 100 are mounted and rotated with a fine gap, and the impeller 100 may collide with the outer wall of the second casing 212 by vibration or external impact. In this case, the coating part 215 may prevent the impeller 100 from being worn by friction between the second casing 212 and the first recess 131 when the impeller 100 rotates. However, the present invention is not limited thereto, and the coating portion 215 may be formed on the inner wall surface of the first casing 211 or the third casing 213 corresponding to the first groove 131 and the second groove 141 . do.

In the above, the present invention has been mainly described with reference to the preferred embodiments described with reference to the drawings, but is not limited thereto. Therefore, the present invention should be interpreted by the description of the claims intended to cover obvious modifications that can be derived from the described embodiments.

100: Impeller for blocking leakage
110: rotating plate
111: shaft hole
120: gas boosting unit
121: outer wall
122: inner wall
123: plural blades
123-1: floating groove
130: blocking unit
131: first groove
140: auxiliary blocking unit
141: second groove
200: Blower using an impeller for blocking leakage
210: body part
211: first casing
211-1: inlet
211-2: 1st Eurohome
211-21: 1st hole
211-22: first expansion groove
212: second casing
212-1: outlet
212-2: 2nd Euro Home
212-21: second expansion groove
212-22: 2nd hole
212-3: second communication hole
213: third casing
213-1: 3rd Euro Home
213-11: third expansion groove
213-12: 3rd hole
213-2: 4th Euro Home
213-21: 4th hole
213-22: fourth expansion groove
213-3: third communication hole
214: third groove
215: coating part
220: drive unit
221: motor
222: rotation shaft
223: bearing

Claims (5)

a rotating plate in the form of a disk;
a gas boosting unit in which a plurality of blades are spaced apart between the ring-shaped outer wall and the inner wall formed on the outside of the rotating plate;
a blocking unit having a plurality of first grooves formed in at least one of the outer wall and the inner wall to prevent the gas pressurized by the gas boosting unit from leaking; and
It protrudes in a ring shape between the central axis of the rotating plate and the gas boosting part, and a plurality of second grooves are formed on one side to include an auxiliary blocking part to prevent gas leakage,
It is accommodated by the coupling of the first casing and the second casing, and the second casing has a plurality of third grooves formed at positions opposite to the first grooves formed on the outer wall, and the inner wall of the second casing is coated with A leak-blocking impeller accommodated by a plurality of casings in which additional portions are formed. delete According to claim 1,
The first groove and the second groove is a leak-blocking impeller that is formed in any one of a triangular, square, and trapezoidal cross section. A disk-shaped rotating plate, a gas boosting unit in which a plurality of blades are spaced apart between the ring-shaped outer and inner walls formed on the outer side of the rotating plate, and a plurality of first grooves in at least one of the outer wall and the inner wall A blocking part that is formed and prevents the gas pressurized by the gas boosting part from leaking, and protrudes in a ring shape between the central axis of the rotating plate and the gas boosting part, and a plurality of second grooves are formed on one side to prevent the gas from leaking. Impeller including an auxiliary blocking portion to prevent leakage;
Coupled to each other by a first casing and a second casing having a flow path groove, and accommodating at least one or more of the impellers therein, the second casing includes a plurality of third a body portion in which a groove is formed and a coating portion is formed on an inner wall of the second casing; and
A blower using an impeller for blocking leakage including a driving part for rotating the impeller on one side of the body part. delete

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