KR20170012691A - Venturi Unit and Flushing Device for Atomizer using it - Google Patents

Venturi Unit and Flushing Device for Atomizer using it Download PDF

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Publication number
KR20170012691A
KR20170012691A KR1020150103770A KR20150103770A KR20170012691A KR 20170012691 A KR20170012691 A KR 20170012691A KR 1020150103770 A KR1020150103770 A KR 1020150103770A KR 20150103770 A KR20150103770 A KR 20150103770A KR 20170012691 A KR20170012691 A KR 20170012691A
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KR
South Korea
Prior art keywords
main passage
passage
spray
area
connection
Prior art date
Application number
KR1020150103770A
Other languages
Korean (ko)
Inventor
한태희
Original Assignee
한태희
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Publication date
Application filed by 한태희 filed Critical 한태희
Priority to KR1020150103770A priority Critical patent/KR20170012691A/en
Publication of KR20170012691A publication Critical patent/KR20170012691A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/04—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by a combination of operations

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)

Abstract

An embodiment of the present invention relates to a spray pipe cleaning system which is able to effectively clean an inside of a spray pipe blocked by foreign substances or residues by enabling to form negative pressure on an inlet of the spray pipe by passing through air to clean into a venturi unit connected to the inlet of the spray pipe to spray liquid.

Description

(Venturi Unit and Flushing Device for Atomizer using it)

An embodiment of the present invention relates to a venturi unit and a spray pipe cleaning apparatus using the venturi unit.

The contents described in this section merely provide background information on the embodiment of the present invention and do not constitute the prior art.

The device for spraying a liquid is widely used in various fields such as various combustion devices, spraying devices for painting, chemical spraying devices necessary for sterilization and control, etc., There is an inconvenience that the spray pipe or nozzles are easily clogged so as to stop the injection frequently and to clean the pipe.

In order to solve this inconvenience, conventionally, a high-pressure air is blown into the chemical liquid duct to blow out residue or remaining liquid in the duct, or a cleaning solvent tank is separately installed. After the chemical liquid is sprayed for a predetermined time There has been disclosed a method of automatically cleaning a nozzle while spraying a cleaning solvent in a cleaning solvent tank in place of a chemical liquid for a predetermined time or providing an automated back and forth reciprocating fin to a nozzle to punch a liquid medicine hole, The pressure is applied in the same direction as the flow direction of the original chemical liquid to blow the air. Therefore, when the spray pipe or the nozzle end is narrower than the supply pipe, the residue may accumulate in the nozzle or pipe, Is not able to suck the debris of the spray pipe in the reverse direction, and in particular, A sticky residue, the less effect the same problem with the state.

In the embodiment of the present invention, negative pressure is formed at the inlet of the spray pipe by passing air for cleaning the duct into a Venturi unit connected to the inlet of the liquid spray pipe, Or a spray device capable of effectively cleaning the interior of a spray nozzle clogged with debris.

One embodiment of the present invention is a venturi unit (10) provided in a cleaning apparatus (100) with a spray tube, wherein a main passage (21) is formed in the venturi unit And the spray liquid and the cleaning air are selectively supplied to the one connection port 23 of the main passage 21 so as to be connected to the other connection port 24 of the main passage 21, A housing in which the main passage is formed so that a liquid or the cleaning air flows out; And a portion of the interior of the main passage 21 or a portion of the connection passage 22 extending from the portion of the main passage 21 so as to reduce the volume of the passage at the crossing portion of the main passage 21 with the connection passage 22 And a projection (30).

The protrusion 30 may be positioned at a position between the position where the connection passage 22 is formed at one side of the central portion of the main passage 21 and the connection port 23 of the main passage 21, So as to obliquely protrude in such a manner as to cover the connection portion of the connection passage 22 by the spray pipe.

According to the embodiment, the projections 30 are formed,

The main passage 21 can be shaped to protrude obliquely from the position adjacent to the one side connection 23 of the main passage 21 toward the main passage 21 on the inner peripheral surface of the connection pipe 22. The cross sectional area of the first main passage area 41 which is the area from the one side connector 23 of the main passage 21 to the tip end of the projection 30 is larger than the cross sectional area of the first main passage area 41, Sectional area of the second main passage area 42, which is an area from the area of the first main passage 21 to the other side connection 24 of the main passage 21. [ The tip end of the projection 30 is located at a central portion of the region where the connection passage 22 is connected to the main tube 21.

According to another aspect of the present invention, in the venturi unit (10) provided in the cleaning device (100) by the spray pipe, the main passage (21) And spray liquid and cleaning air are selectively supplied to one side connection port 23 of the main channel 21 to connect the other side connection port 24 of the main channel 21 (22) is connected from one end (23) of the main passage (21) to the spray pipe (22), and the main passage (21) Sectional area of the first main passage area 51 which is the area from the other side connecting hole 24 of the main passage 21 to the area where the connection passage 22 is connected to the second main passage area 52) having a cross-sectional area smaller than that of the venturi It provides 10.

In this case, the end portion 511 of the first main passage region 51 may be extended to the central portion of the region where the connection passage 22 is connected to the main passage 21.

According to another aspect of the present invention, there is provided a venturi unit (10) including a venturi unit (10) connected to a spray conduit through which a liquid material moves and is ejected, wherein the venturi unit (10) includes a main passageway (21) 21 is connected to one side surface of the central portion of the main passage 21 and the spray liquid and the cleaning air selectively supplied to the one connection port 23 of the main passage 21 are connected to the other side An air supply control valve (not shown) which is formed to flow out intermittently by an outlet valve 64 provided in the connection port 24 and regulates the supply of the cleaning air supplied from the air tank 40 for supplying the cleaning air 44) and a liquid material control valve for regulating the supply of the spray liquid supplied from a liquid material tank (50) for supplying the spray liquid, the apparatus comprising: The air supply And a valve control unit 60 for controlling opening and closing operations of the control valve 44 or the outlet valve 64. The valve control unit 60 controls the opening and closing operations of the air supply control valve 44 and the outlet valve 64, Closing operation of the air supply control valve (44) and the outlet valve (64) so as to be simultaneously opened or closed at the same time.

According to an embodiment of the present invention, since the duct cleaning air is passed through the venturi unit connected to the inlet of the spray duct, negative pressure is formed at the inlet of the spray duct to effectively remove the foreign matter or residue left in the spray duct have.

Further, there is an advantage that a combination of the conventional blowing method and the negative pressure forming method can be used by controlling the opening and closing of the valve provided at the outlet of the venturi unit.

In addition, there is an advantage that foreign substances can be effectively removed when a plurality of spray pipes are washed at a time.

1 is a block diagram schematically showing the construction of a spray tube cleaning apparatus according to an embodiment of the present invention.
FIG. 2 is a sectional view for explaining the internal structure of a venturi unit provided in the spray pipe cleaning apparatus according to an embodiment of the present invention.
FIG. 3 is a view showing a shape of the venturi unit 10 viewed in the X direction in FIG.
4 is a cross-sectional view for explaining the internal structure of the venturi unit according to another embodiment in detail.
5 is a sectional view for explaining the internal structure of the venturi unit according to another embodiment in detail.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."

In this embodiment, a negative pressure is formed at the inlet of the spray pipe by passing air for cleaning the duct to a venturi unit connected to the inlet of the liquid spray pipe, so that foreign matter or debris A cleaning device is proposed which can effectively clean the inside of the spraying duct closed by the spray pipe. According to one embodiment of the present invention, the cleaning air is blown into the venturi unit connected to the inlet of the spray pipe, without blowing the cleaning air in the advancing direction of the chemical solution as in the prior art, It is possible not only to effectively remove impurities or debris trapped in the spray pipe or the chemical liquid pipe, but also to provide a combination of a conventional blowing method and a negative pressure forming method by controlling the opening and closing of the valve provided at the outlet of the venturi unit We propose a cleaning device that can be used as an atomizer.

FIG. 1 is a block diagram schematically showing the structure of a spray tube cleaning apparatus 100 according to an embodiment of the present invention. FIG. 2 is a schematic view of a spray tube cleaning apparatus 100 according to an embodiment of the present invention. FIG. 3 is a view showing a configuration of the venturi unit 10 viewed in the X direction in FIG. 2. FIG. 3 is a cross-sectional view illustrating the internal structure of the venturi unit 10. Hereinafter, the structure and operation of the spray apparatus 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.

1, the spray device 100 includes a venturi unit 10, an air tank 40, a liquid material tank 50, a valve control unit 60, a spray line 80, A control valve 44, a liquid material control valve 54, and an outlet valve 64. [ In this embodiment, the spray apparatus 100 is provided with the venturi unit 10, the air tank 40, the liquid material tank 50, the valve control unit 60, the spray line 80, the air supply control valve 44 ), The liquid material control valve 54, and the outlet valve 64. However, this is merely illustrative of the technical idea of the present embodiment, and it is to be understood that the present invention is not limited thereto, Various modifications and variations of the components included in the cleaning apparatus 100 by the spray pipe may be possible without departing from the essential characteristics of the present embodiment.

When washing the pipeline by blowing high-pressure air to clean the piping of the atomizer which is configured to spray the chemical liquid by the two-fluid nozzle, high-pressure air is blown into the liquid material tank to flood the chemical liquid, A control valve 54 is disposed to prevent the problem of not providing sufficient air pressure for cleaning the pipeline, and it is preferable to include a check valve that allows the liquid to flow only in one direction in order to prevent backflow of the liquid Do. This is because when the chemical liquid is drawn from the liquid material tank 50 toward the spray conduit 80 by the negative pressure generated by the spray pipe 80, the liquid material control valve 54 is opened and the liquid material tank 50 to the spray conduit 80 and when the pressure of the high-pressure air supplied to the conduit becomes higher than the pressure on the side where the liquid material tank 50 is disposed, the liquid material control valve 54) is closed to block the jet of air into the chemical material tank and to supply sufficient high-pressure air for cleaning to the pipeline.

1, only one spray conduit 80 is connected to the chemical liquid supply conduit 52. However, in general, a plurality of spray conduits are connected in parallel. In the case of a greenhouse or a house for agriculture, Although there may be some differences depending on the type of spraying, approximately 200 to 300, or more than 1,000, spraying lines may be connected.

The venturi unit 10 may be configured to generate a negative pressure at the inlet of the spray conduit 80. To this end, the venturi unit 10 includes a housing 20 and a projection 30, as shown in Fig.

The housing 20 has a main passage 21 through which liquid or gas can flow and a distributor pipe connecting passage 22 connected to the main passage 21 at one side of the central portion of the main passage 21, . 2, a central connection port 76 of the T-shaped connection pipe 70 is connected to one side connection port 23 located on the upper side of the main passage 21, An outlet valve 64 is connected to the other connection port 24 for interrupting the flow of the liquid or gas flowing through the main channel 21 and is connected to the channel connection port 25 The inlet of the spraying line 80 is connected.

The protrusion 30 protrudes from a part of the main passage inner circumferential surface 26 on one side of the inner circumferential surface in which the connection passage 22 is formed and extends in the direction of the other connection port 24 located below the main passage 21, And is formed so that the branch passage 22 is located between the protruding point 32 and the extended tip 34.

That is, the projection 30 protrudes from a position where the connection passage 22 is formed from the one side of the central portion of the main passage 21 and the one side connection 23 of the main passage 21, And projects obliquely in such a manner as to cover the connection portion of the passage 22.

The reason why the branch pipe connecting passage 22 is positioned between the protruding point 32 and the tip end 34 of the protrusion 30 protruded from a part of the main passage inner circumferential surface 26 is as follows. The negative pressure is formed in the connecting portion 28 of the connecting passage 22 by the venturi effect by the cleaning air flowing from the connecting port 23 toward the other connecting port 24. [ This is because the volume through which the cleaning air flowing in the direction of the other connector 24 from the one connector 23 on the main passage 21 is passed by the projection 30 near the connection portion 28 of the connection pipe 22 So that the volume of the position of the connecting portion 28 of the connecting passage 22 or the position of the connecting portion 28 is suddenly increased on the main passage 21 by the venturi effect, It is possible to increase the negative pressure generated in the connecting portion 28 of the first and second heat exchangers 22 and 22.

The first fitting member 92 is provided at the end of the one side connecting hole 23 of the main passage 21 to be firmly connected to the center connecting hole 76 of the T- 2 fitting member 94 allows the inlet between the spraying ducts 80 to be firmly connected to the duct connecting port 25. [

In the description of the configuration and operation of the present embodiment, the case where the protrusions 30 are formed in the shape of a plate is described as an example, but the present invention is not limited thereto.

4 is a cross-sectional view for explaining the internal structure of the venturi unit according to another embodiment in detail.

4, the projections 30 are formed on the inner circumferential surface of the connection passage 22 at an angle from the position adjacent to the one connection port 23 of the main passage 21 toward the main passage 21 It may be a protruding form.

The cross sectional area of the first main passage area 41 which is the area from the one side connector 23 of the main passage 21 to the tip of the projection 30 is larger than the cross sectional area of the main passage area 41 from the area where the connection passage 22 is connected by the spray pipe Is smaller than the cross sectional area of the second main passage area (42), which is the area leading to the other connector (24) of the passage (21). The tip end of the projection 30 is positioned at the central portion of the region where the connection passage 22 is connected by the spray pipe on the main passage 21 and is efficiently washed by the spray pipe It is preferable that the front end portion of the projection 30 protrude to the main passage 21 region.

5 is a sectional view for explaining the internal structure of the venturi unit according to another embodiment in detail.

5, the venturi unit 10 has a main passage 21 formed therein, a spray passage 22 is connected to one side of a central portion of the main passage 21, A housing 20 in which a main passage is formed so that spray liquid and cleaning air are selectively supplied to one connection port 23 of the main passage 21 to discharge spray liquid or cleaning air to the other connector 24 of the main passage 21, . In this case, the cross-sectional area of the first main passage area 51, which is an area from the one-side connecting port 23 of the main passage 21 to the area where the connection passage 22 is connected to the main passage 21, Sectional area of the second main passage area 52, which is an area from the second main passage area 24 to the area where the connection passage 22 is connected.

The end portion 511 of the first main passage region 51 extends to the central position of the region where the connection passage 22 is connected to the main passage 21 by the spray pipe.

On the other hand, as shown in Fig. 5, several housings 20 may be connected. In this case, a tube located in the first main passage area 51 of the first housing 201 is inserted into a tube located in the second main passage area 52 of the second housing 202, Sectional area of the tube located in the first main passage area 51 of the second housing 202 is smaller than the sectional area of the tube located in the second main passage area 52 of the second housing 202, .

4 and 5, the illustration of the outlet valve 64 and fitting members 92 and 94 is omitted.

An outlet valve 64 for interrupting the outflow of a chemical liquid or a gas (cleaning air) flowing through the main passage 21 may be disposed on the other side connector 24 of the venturi unit 10. The outlet valve 64 may be configured to include a check valve that is operated to open when pressure is generated in the direction of the other connector 24. When the outlet valve 64 is configured to be opened when the pressure is generated in the direction of the other connector 24, when the cleaning air flows in the direction of the other connector 24 from the one connector 23 So that the outlet valve 64 is opened. If the negative pressure is generated by the spray conduit 80 and the chemical liquid flows into the main passage 21 from the one connection port 23, the pressure of the connection portion 28 of the connection passage 22 to the distribution pipe 22, The outlet valve 64 is closed because the pressure of the outlet valve 64 is lower than the pressure of the outlet valve 24. Further, the outlet valve 64 may be configured to be driven by an opening / closing signal of the valve control unit 60. [ For this purpose, the outlet valve 64 preferably comprises a check valve or an electrically operated ball valve, but is not limited thereto.

The central connector 76 of the T-shaped connecting pipe 70 for connecting the chemical solution supply line 52 and the cleaning air supply line 42 together is connected to the one connector 23 of the venturi unit 10 . As described above, when the one end connector 23 of the venturi unit 10 is connected to the chemical liquid supply line 52 and the cleaning air supply line path 42 by the T-shaped connection pipe 70, The liquid material control valve 54 is opened so that the pesticide flows through the chemical liquid supply line 52 and the liquid material tank side connection port 74 of the T-shaped connection pipe 70 And flows into the main passage 21 of the venturi unit 10. [ At this time, the air supply control valve 44 is controlled to be kept closed by the valve control unit 60. [ At this time, since the outlet valve 64 is also closed by the negative pressure generated by the spray line 80, the chemical liquid flowing into the main passage 21 flows to the connection portion 28 of the connection passage 22 through the spray pipe And then reaches the spraying duct 80. 2, the spraying duct 80 is directly connected to the duct connecting port 25 by a fitting member 94. However, the spray duct 80 may be directly connected to the duct connecting hole 25 But may be configured to be connected by a nozzle connecting conduit (not shown).

The valve control unit 60 controls the air supply control valve 60 so that the air supply control valve 44 is opened to clean the inside of the spray conduit 80 or the nozzle connection conduit Thereby controlling the operation of the valve 44.

When the air supply control valve 44 is opened by the valve control unit 60, the liquid material control valve 54 is closed by the pressure of the cleaning air, and the main passage 21 of the venturi unit 10 is supplied with the cleaning air . When the cleaning air is supplied to the main passage 21 of the venturi unit 10, the outlet valve 64 is opened by the pressure of the cleaning air, so that the cleaning air passes through the main passage 21, The venturi effect generated in the connection portion 28 of the connection passage 22 by the spray pipe 24 while flowing into the spray pipe 24 causes a flow of air in the direction opposite to the spraying of the chemical solution into the spray pipe 80 (Hereinafter, referred to as a 'first cleaning operation') in the interior of the spray conduit 80 or the nozzle connection conduit (not shown), particularly, the nozzle hole or the hole.

When the outlet valve 64 includes the electrically operated valve capable of opening and closing control by the valve control unit 60 as described above, the outlet valve 64 is opened when the air supply control valve 44 is opened The valve control unit 60 controls the operation of the outlet valve 64 so as to be opened together. The valve control unit 60 controls the operation of the outlet valve 64 so that the outlet valve 64 closes when the outlet valve 64 is configured to include the electrically operated valve.

Further, when the outlet valve 64 is configured to include a motor-operated valve that can be controlled by the valve control unit 60, the cleaning operation may be configured to proceed as follows. That is, during the cleaning by the cleaning air, the outlet valve 64 is closed for a predetermined time, so that the cleaning air is jetted out of the outlet of the spray conduit 80 in the same direction as the flow of the chemical solution when the chemical solution is sprayed The first cleaning operation is performed by causing the outlet valve 64 to be opened for a further predetermined period of time after discharging debris or foreign matter (hereinafter, referred to as a "second cleaning operation") or performing the first and second cleaning operations It is possible to control the operation of the cleaning apparatus 100 so that the first and second cleaning operations are executed in the set order by the alternate execution or by the set combination.

The venturi unit 10 is connected to the spray passage through which the liquid material moves and is sprayed. The venturi unit 10 includes a main passage 21, And one end of the main passage 21 is connected to a part of the inner circumferential surface 26 of the main passage 21 A T-shaped connecting pipe 70 for selectively supplying air for spraying and cleaning air is connected to the other connecting port 24 of the main passage 21 and the outlet of the liquid or gas flowing through the main passage 21 is connected to the other connecting port 24 of the main passage 21. [ An outlet valve 64 for interrupting the flow of air is connected to the end of the connection pipe 22 and a spray pipe is connected to the end of the connection pipe 22. The air tank 40 and the T- And an air supply control valve (44) is provided between one of the side connectors It controls the cleaning of the device with a liquid material in the control valve between the other side connector 74 of the liquid material tank 50 and the main passage 21.

Although the venturi unit 10 and the connecting pipe 70 are T-shaped in the present embodiment, the present invention is not limited to this, and the venturi unit 10 or the connecting pipe 70 may have a Y- Shape.

The valve control unit 60 controls the opening and closing operations of the air supply control valve 44 or the outlet valve 64 and controls the air supply control valve 44 and the outlet valve 64 to be opened or closed at the same time, Closing operation of at least one of the valve (44) and the outlet valve (64).

The valve control unit 60 controls the air supply control valve 44 and the outlet valve 64 to be closed at the same time, opens the liquid material control valve to supply the liquid material to be sprayed, When it is desired to perform a cleaning operation, the air supply control valve 44 and the outlet valve 64 are controlled to be opened at the same time, and the liquid material control valve is closed so that the spraying solvent is not supplied and the cleaning air is supplied.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them.

The description above is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas which are within the scope of the same should be interpreted as being included in the scope of the present invention.

100: Split tube cleaning device
10: Venturi unit
20: housing 21: main passage
201: first housing 202: second housing
22: Connection pipe to the spray pipe 23: Connection pipe at one side of the main passage
24: main passage other side connection port 25: pipe connection port
26: inner peripheral surface of main passage 28: connection port
30: projection
32: protrusion protrusion point 34: extended tip
40: air tank 44: air supply control valve
41, 51: first main passage area 42, 52: second main passage area
50: Liquid material tank 54: Liquid material control valve
60: valve control section 64: outlet valve
70: T-shaped connector 80: Spray pipe
92, 94: Fitting member

Claims (8)

In a venturi unit provided in a cleaning apparatus by a spray pipe,
Wherein a main passage is formed in the main passage, and a spray passage is connected to one side of a central portion of the main passage, spray liquid and cleaning air are selectively supplied to one end of the main passage, A housing having the main passage formed therein to allow the spray liquid or the cleaning air to flow out; And
A projection that protrudes from a part of the main passage or a part of the connection passage by the distribution pipe to reduce the volume of the passage of the cross-
And a venturi unit. The apparatus according to claim 1,
Wherein the venturi protrudes obliquely from a position between a position where the connection passage is formed at one side of the central portion of the main passage and the one connection port of the main passage and covers the connection portion of the connection passage by the distribution pipe. unit. 3. The apparatus according to claim 2,
Wherein the venturi unit is shaped to protrude obliquely from a position adjacent to one side of the main passage toward the main passage on the inner circumferential surface of the connection passage. 4. The apparatus according to claim 3,
Sectional area of the first main passage area which is an area extending from one end of the main passage to the tip of the protrusion is larger than a cross sectional area of the second main passage area which is an area from the area where the connection passage is connected to the other end of the main passage Sectional area of the venturi unit. 4. The apparatus according to claim 3,
Wherein the venturi unit is located at a central portion of an area where the connection passage is connected to the spray pipe on the main passage. In a venturi unit provided in a cleaning apparatus by a spray pipe,
Wherein a main passage is formed in the main passage, and a spray passage is connected to one side of a central portion of the main passage, spray liquid and cleaning air are selectively supplied to one end of the main passage, A housing having the main passage formed therein to allow the spray liquid or the cleaning air to flow out;
/ RTI >
Sectional area of the first main passage region which is an area from the one end of the main passage to the region where the connection passage is connected to the spray pipe is a region extending from the other end of the main passage to the region to which the connection passage is connected, 2 < / RTI > main passage area. 7. The fuel cell system according to claim 6, wherein an end of the first main passage region
Wherein the venturi unit extends to a central position of an area where the connection passage is connected to the main pipe. And a venturi unit connected to a spraying line through which the liquid material is moved and ejected, wherein the venturi unit connects the main passage and the one side of the central portion of the main passage with a spray passage, The supplied spray liquid and the cleaning air are formed so as to flow out intermittently by an outlet valve provided at the other end of the main passage, and the supply of the cleaning air supplied from the air tank for supplying the cleaning air is controlled There is provided a spray apparatus for controlling cleaning of an apparatus having an air supply control valve and a liquid material control valve for regulating the supply of the spray liquid supplied from a liquid material tank for supplying the spray liquid,
A valve control unit for controlling opening and closing operations of the air supply control valve or the outlet valve;
Lt; / RTI >
The valve control unit includes:
Wherein the opening and closing operation of the air supply control valve and the outlet valve is controlled so that the air supply control valve and the outlet valve are simultaneously opened or closed simultaneously.
KR1020150103770A 2015-07-22 2015-07-22 Venturi Unit and Flushing Device for Atomizer using it KR20170012691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150103770A KR20170012691A (en) 2015-07-22 2015-07-22 Venturi Unit and Flushing Device for Atomizer using it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150103770A KR20170012691A (en) 2015-07-22 2015-07-22 Venturi Unit and Flushing Device for Atomizer using it

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KR20170012691A true KR20170012691A (en) 2017-02-03

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KR1020150103770A KR20170012691A (en) 2015-07-22 2015-07-22 Venturi Unit and Flushing Device for Atomizer using it

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KR (1) KR20170012691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107965043A (en) * 2017-12-28 2018-04-27 徐州徐工环境技术有限公司 Sewer dredging cleaning vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107965043A (en) * 2017-12-28 2018-04-27 徐州徐工环境技术有限公司 Sewer dredging cleaning vehicle
CN107965043B (en) * 2017-12-28 2024-05-17 徐州徐工环境技术有限公司 Sewer dredging and cleaning vehicle

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