JP2013543102A - Flow guide member and duct having the flow guide member - Google Patents

Abstract

A flow guide member and a duct having the flow guide member are provided.
A duct includes a tube and at least one flow guide member, and the flow guide member is detachably disposed at an air outlet of the tube. The diversion member includes a diversion groove corresponding to the outlet, and the diversion groove has a current collecting stage, a rectifying stage, and a diversion stage, and the airflow flowing through the tube passes through the current collecting stage. The air flows through the rectification stage, is discharged to the outside of the duct through the compression of the rectification stage and the conduction stage, and can be used to form an air wall above the tube body in the air stream and to isolate a pollution source drifting in the air.
[Selection] Figure 2A

Description

The present invention relates to a flow guide member and a duct having the flow guide member, and more particularly to a flow guide member that induces an air flow, forms a piece-like air wall (or air curtain), and isolates a contamination source in the air, and the guide. The present invention relates to a duct having a flow member.

  Currently, in workplaces that have pollution sources such as oil smoke, solder, organic solvents, lead, ash dust, or certain chemical substances, exhaust (or dust collection) equipment is generally installed around the workbench, and the pollution source is placed around the workbench. To prevent the operator from inhaling the source of contamination and harming the health. Conventionally, the exhaust equipment that is often seen is an exhaust machine installed above the workbench, for example, an oil smoke exhauster installed above the furnace tool or an exhaust machine installed above the experiment table in the kitchen, and above the workbench. The drifting pollution source is sucked by the exhaust machine and flows upward, and the pollution source is sucked into the exhaust machine and removed from the work table. However, this type of exhaust system suspended above the work table has a considerable distance between the work machine and the work table. It is reduced by the influence of the side wind of the external environment, and the pollutant collecting action of the exhaust machine cannot be effectively performed, and some of the pollutants diffuse around the workbench and spread in the work place.

  In order to solve this problem, the inventor of the present application has previously presented a smoke evacuator, for example, U.S. Pat.No. 6,752,144 discloses a front aircraft and left and right aircraft, and the left and right aircraft are mutually connected. When connected to two opposite ends of the front machine body in parallel, and the smoke evacuator is installed on the work table, the front machine body and the left and right machine bodies surround the work area of the work table. In addition, a motor and a cage wheel are installed in the front and left and right bodies, a plurality of air inlets are installed on the outer sides of the front and left and right bodies, and a plurality of air outlets are installed above the outer bodies. In operation, the motor drives the rotation of the cage wheel to generate an air flow, and external air flows into the front and left and right aircraft from the air inlet, and flows upward from the air outlet. Forming an intangible (transparent) air curtain around the work area, isolating the pollution source drifting above the work table into the work area, and the pollution source diffuses to the side or receives the side wind of the environment, Can be efficiently avoided, and has an effect of assisting in improving the collection efficiency of the exhaust machine.

  However, the above smoke evacuator can solve the problem of contamination sources spreading around the workbench, but the composition mechanism of this type of smoke evacuator is complex and has a certain degree of difficulty in production and production. There is a problem that the production cost cannot be reduced efficiently. Therefore, another type of smoke evacuator adopts a fan instead of a cage wheel installation method, and the front and left and right aircrafts have a hollow tube structure extruded from aluminum, respectively. A duct structure is formed between the fuselage and the interior communicates with each other. The fan is installed at the other end connected to the front fuselage of the left and right fuselage. Can be distributed to the front aircraft. In addition, in the aluminum extrusion process, punching and milling are carried out by combining a plurality of airflow holes above the duct structure such as the front and left and right airframes, and an airflow outlet is formed. The air curtain is allowed to flow out to the outside of the smoke evacuator, and an air curtain is formed around the work area between the work table and the exhaust machine.

  A duct structure that employs this type of aluminum extrusion is simpler than a smoke blasting machine that uses a cage wheel. However, in the aluminum extrusion process, a plurality of flow guide holes each having an appropriate interval, size or direction are punched and milled on the duct, and still have considerable difficulty and are not easy to manufacture. Therefore, the conventional aluminum extrusion type duct still has a problem of high production cost.

US Pat. No. 6,752,144

  In view of the above problems, the present invention provides a flow guide member and a duct having the flow guide member, and the problem is that the composition structure of the duct used by the conventional smoke guide is too complicated and the assembly of the duct is difficult. In addition, the conventional aluminum extrusion type duct improves the problem that the manufacturing cost of the duct cannot be reduced by punching and milling the through holes having an appropriate interval, size or direction in the processing step.

  The duct disclosed by the present invention is disposed on a smoke circulator, and the smoke evacuator includes at least one fan module used to generate an air flow. The duct includes a tube and at least one flow guide member. The tubular body has an air outlet, and the air outlet is installed on the surface of the tubular body along the axial direction of the tubular body. The pipe has a passage communicating with the air outlet, and the airflow circulates in the passage. The diversion member is detachably disposed at the outlet, and the diversion member includes a diversion groove, and the diversion groove has a current collecting stage, a rectifying stage, and a diversion stage. The current stage is connected between the current stage and the current stage, and the width of the current stage is larger than the width of the current stage, and the width of the current stage is larger than the width of the current stage. The airflow collects in the current collecting stage, enters the rectifying stage, and is pushed out of the tube through compression of the rectifying stage and the diversion stage.

  The flow guide member disclosed in the present invention is disposed at the air outlet of the duct, and has an air flow in the duct. This air flow circulates outside the duct via the flow guide member. Is arranged detachably on the air outlet, and the flow guide member includes a flow guide groove, and the flow guide groove has a current collecting stage, a rectifying stage, and a current introducing stage. The width of the current collecting stage is larger than the width of the rectifying stage, the width of the rectifying stage is larger than the width of the current introducing stage, and the airflow is concentrated in the current collecting stage. It is to be pushed out of the duct through the rectification stage and the diversion stage.

  The effect of the present invention is to install the diversion groove on the diversion member, and to be a detachable arrangement between the diversion member and the pipe body, which can simplify the duct manufacturing and assembly process, At the same time, it is possible to overcome the problem that the flow guide hole of the conventional aluminum extrusion type duct is difficult to be machined and the production cost is increased. In addition, the arrangement method in which the width of the diversion groove gradually decreases from the current collecting stage, the rectification stage to the diversion stage, allows the air flow to flow out of the tube uniformly, accelerates the flow velocity of the air flow, A piece of air wall can be formed to isolate sources of air contamination.

It is a three-dimensional explanatory drawing of 1st Example of this invention. It is decomposition | disassembly explanatory drawing of the duct of 1st Example of this invention. It is combination explanatory drawing of the duct of 1st Example of this invention. It is a three-dimensional explanatory drawing of the flow guide device of the first embodiment of the present invention. It is a plane explanatory view of the flow guide device of the first embodiment of the present invention. It is side explanatory drawing of the diversion apparatus of 1st Example of this invention. It is a use condition explanatory view of the 1st example of the present invention. It is use condition explanatory drawing of 2nd Example of this invention. It is three-dimensional explanatory drawing of 3rd Example of this invention. It is use condition explanatory drawing of 3rd Example of this invention. It is decomposition | disassembly explanatory drawing of the duct of 4th Example of this invention. It is combination explanatory drawing of the duct of 4th Example of this invention. It is use condition explanatory drawing of 4th Example of this invention.

  The above description of the content of the present invention and the following description of the implementation scheme are used to demonstrate and explain the principles of the present invention and further illustrate the scope of the claims of the present invention.

  As shown in FIG. 1, the duct 10 disclosed in the first embodiment of the present invention is applied on the smoke guide 1, and the smoke guide 1 includes a plurality of ducts 10, a fuselage 20, and two adapter tubes 30. The plurality of ducts 10 are connected to two relative sides of the fuselage 20, and two adapter pipes 30 are connected to the two ducts 10 on both sides of the fuselage 20, and are located on the same side of the fuselage 20. A sandwiching angle is provided between the two ducts 10, and a longitudinal array and a lateral array are respectively provided relative to the airframe 20. The airframe 20 can be electrically connected to an external power source (not shown). The airframe 20 has a control plate 210, and a control circuit (not shown) that electrically connects to the control plate 210 is installed in the airframe 20. To do. A plurality of air inlet holes 310 are installed on each adapter pipe 30, two fans 40 are installed in the adapter pipe 30, and the two fans 40 are respectively positioned at two adjacent ducts 10 in the adapter pipe 30. Each of them is fixed and electrically connected to a control circuit in the airframe 20, and the two fans 40 are rotated under the control of the airframe 20 to generate airflow. The airflow is circulated in the plurality of ducts 10.

  1, 2 </ b> A, and 2 </ b> B, the duct 10 includes a tube body 110 and a plurality of flow guide members 120, and the tube body 110 is a hollow tube, and a passage through which airflow flows in the tube body 110. Give 111. An air outlet 112 is installed on the tube body 110, and the air outlet 112 penetrates the surface of the tube body 110 and communicates with the passage 111. Further, the air outlet 112 extends along the axial direction of the tube body 110. A strip-shaped air outlet 112 is formed on the surface of the tube body 110.

  The plurality of flow guide members 120 are, but not limited to, an integrally molded member in which a plastic material is manufactured by an injection molding method. The plurality of flow guide members 120 are detachably disposed at the air outlet 112 of each tube body 110. Each of the flow guide members 120 includes a main body 121, a panel 122, and a flow guide groove 123. The main body 121 includes a mounting portion. 1211 and the engaging portion 1212, the panel 122 is installed on one side of the mounting surface 1211 facing the engaging portion 1212, and the width of the panel 122 is larger than the width of the mounting portion 1211. 122 protrudes from at least one side surface of the mounting portion 1211, and the width of the mounting portion 1211 is adapted to the width of the air outlet 112 and is larger than the width of the engaging portion 1212. Therefore, when the flow guide member 120 is disposed at the air outlet 112, the flow guide member 120 is fitted into the air outlet 112 by the main body 121, and the panel 122 protrudes to one side of the mounting portion 1211, and the tube body 110 The main body 121 is suspended in the tube 110.

  The flow guide groove 123 is installed on the flow guide member 120 along the axial direction of the tube body 110, and penetrates the flow guide member 120 along the radial direction of the tube body 110. The diversion groove 123 includes a current collection stage 1231, a rectification stage 1232, and a diversion stage 1233, and the rectification stage 1232 is connected between the current collection stage 1231 and the diversion stage 1233, and the current collection stage 1231 and the rectification stage Reference numeral 1232 is perpendicular to the axis of the tube 110, and the diversion stage 1233 can be inclined to the rectification stage 1232, although not limited thereto. The current collecting stage 1231 penetrates the engaging part 1212 of the main body 121 correspondingly, the rectifying stage 1232 penetrates the mounting part 1211 of the main body 121 correspondingly, and the current introducing stage 1233 corresponds to the panel 122. To penetrate. Further, the rectifying stage 1232 is configured with a plurality of holes 1234 arranged at intervals in the mounting portion 1211 (see FIG. 4), but is not limited thereto. Similarly to the flow stage 1233, the mounting portion 1211 can be penetrated in the form of a strip-type groove. The width of the current collecting stage 1231 is larger than the width of the rectifying stage 1232, the width of the rectifying stage 1232 is larger than the width of the current introducing stage 1233, and the width of the current collecting stage 1231 is from the current collecting stage 1231 to the rectifying stage 1232. Then, the current is gradually reduced to the rectification stage 1232 in the direction of, and the flow guide groove 123 is formed on the flow guide member 120 as a nozzle structure.

  Referring to FIGS. 1 to 5, the plurality of flow guide members 120 are arranged in the air outlet 112 along the axial direction of the tube body 110 in a series manner, and the length of the air outlet 112 is the length of the air outlet 112. A diversion device 130 is formed that fits the length of 112. Further, the plurality of flow guide members 120 each have a convex block 124 and / or a fitting groove 125 that fits the convex block 124 based on the difference in position corresponding to the air outlet 112, for example, a dovetail joint, One of the two matching diversion members 120 is a convex block 124, which can be fitted into the fitting groove 125 of the other diversion member 120 and can be in series with each other (see FIGS. 3 and 4). . In addition, at least one through hole 1213 is opened on the placement portion 1211 of each flow guide member 120, and the through hole 1213 extends along the axial direction of the tube body 110 (that is, along the length direction of the main body 121). ), Penetrating the mounting portion 1211. Therefore, when the plurality of flow guide members 120 are arranged in series, the shaft rod 126 penetrates the through hole 1213 of each of the flow guide members 120, so that the plurality of flow guide members 120 are connected in series to each other, and a strip-type guide is formed. And the shaft rod 126 provides a supporting action between the plurality of flow guide members 120, thereby improving the structural strength of the flow guide device 130, and the shaft One end of the flange 126 has a textured structure 1261 to increase the frictional force in the through hole 1213 of the shaft flange 126 and to prevent the shaft flange 126 from detaching from the through hole. The above is used to explain the difference in the method in which the plurality of flow guide members 120 are in series with each other, but is not limited to the series method of the plurality of flow guide members 120, and other multiple flow guide members are used. Those similar to the manner in which the members 120 are in series are also included within the scope of the present disclosure.

  Referring to FIGS. 1, 3, and 4, after the plurality of flow guide members 120 are in series with each other, the air flow is prevented from passing through a gap between two adjacent flow guide members 120, and On one placement portion 1211 of two adjacent flow guide members 120, the length of the panel 122 is shortened to expose the coupling region 1214, and on the placement portion 1211 of the other flow guide member 120. The length of the panel 122 can be extended to allow the fitting piece 1221 to protrude. When the two adjacent current guide members 120 are in series with each other, the current guide member 120 is further bonded to the coupling region 1214 of the other current guide member 120 by the fitting piece 1221, and the two current guide members 120. It is possible to ensure that the airflow in the tube 110 passes through the flow guide groove 123 and is guided out of the tube 110.

  As shown in FIG. 1, FIG. 2B and FIG. 6, in use, when the smoke tractor 1 is placed on a work table 5 that generates a contamination source, for example, when placed on a chemical laboratory table or kitchen counter, In the present embodiment, the case where the smoke guide 1 is arranged on the cooking table will be described as an example, but the present invention is not limited to this. The smoke circulator 1 surrounds the work area 520 around which the furnace tool 510 on the work table 5 is arranged with the duct 10, and the oil smoke discharger 6 is correspondingly installed above the work area 520, and further installed in the duct 10. The plurality of flow guide members 120 are arranged in series on the tube body 110 in such a manner that the flow guide stages 1233 of the flow guide grooves 123 are inclined toward the work area 520. The user drives the rotation of the fan 40 by pressing the control plate 210 of the machine body 20, generates an air current in the fan 40, and distributes it in the passage 111 of the tube body 110. At this time, the airflow flows to the flow guide member 120 in the form of turbulent flow, and is affected by the width of the current collecting stage 1231 of the flow guiding groove 123 being gradually reduced toward the rectifying stage 1232. To gather. Subsequently, the airflow flows into the rectification stage 1232 via the current collecting stage 1231, and the airflow is guided by the internal structure of the rectification stage 1232 to form a laminar flow having a uniform flow velocity. Then, it flows outside the tube body 110 via the flow guide stage 1233.

  Further, the width of the rectifying stage 1232 is smaller than that of the current collecting stage 1231, and the width of the diverting stage 1233 is smaller than that of the rectifying stage 1232, so that the nozzle structure is formed in the diverting groove 123. In addition, when the airflow enters the rectifying stage 1232 and the diverting stage 1233, the flow velocity inside the diverting groove 123 of the airflow is accelerated by the compression of the rectifying stage 1232 and the diverting stage 1233, and thus the airflow is diverted. The tube is discharged to the outside of the tube body 110 in the direction of the inclination of the step 1233, and a piece of air wall (air curtain) is formed around the work area 520 of the work table 5. The oil smoke (contamination source) to be separated is restricted between the work area 520 and the oil smoke discharger 6 after being separated by the flake-like air wall, and the oil smoke diffuses to the side or receives external air and blows away. It effectively avoids spreading outside, promotes the collection efficiency of the oil smoke discharger 6, and prevents the oil smoke from spreading into the environment and harming the health of the user.

  The duct disclosed in the present invention is a nozzle structure formed by a flow guide groove in the flow guide member, which allows the air flow to flow out of the pipe body uniformly from the flow guide member, increasing the flow velocity of the air flow and increasing the flow rate of the air flow. A wall can be formed to effectively isolate air pollution sources. At the same time, an arrangement method in which a plurality of flow-conducting members are arranged in series with each other can be used to allow the user to perform a corresponding number of series on the basis of different lengths of the pipes. Flexibility and convenience can be improved. In addition, the removable arrangement method between the flow guide member and the pipe body can simplify the manufacturing and assembling process of the duct, and at the same time, it is not easy to process the flow guide hole on the conventional aluminum extrusion-type duct, The problem that the production cost cannot be reduced can be overcome.

The duct disclosed in the present invention can be used to operate the smoke evacuator by the difference in the mutual coupling position between the flow guide member and the pipe body in addition to the method of directly installing on the work bench surface as in the above embodiment. It can be installed below the table surface of the table to maintain the flatness of the table surface of the work table. As shown in FIG. 7, in the duct 10 disclosed in the second embodiment of the present invention, the width of the engaging portion 1212 on the main body 121 of the flow guide member 120 matches the width of the air outlet 112 of the tube body 110. The flow guide member 120 is fitted to the air outlet 112 of the tube body 110 by the engaging portion 1212, and the mounting portion 1211 is locked on the tube body 110 and protrudes from the surface of the tube body 110. A distance suitable for the thickness of the work table surface is formed between the surface of the body 110 and the panel 122 of the flow guide member 120. Therefore, in the arrangement of the duct 10, the tube body 110 is first installed below the surface of the work table 5, and the work surface of the work table 5 is sandwiched between the panel 122 of the flow guide member 120 and the surface of the tube body 110. It is possible to have a well-appointed appearance on the base.

  8 and 9 show a duct 10 disclosed in a third embodiment of the present invention. The third embodiment and the first embodiment disclosed in the present invention are substantially the same in structure, and the difference between the two is that the duct 10 is disposed in the smoke guide 1 having a linear structure in the third embodiment. However, the present invention is not limited to this, but is arranged around the furnace tool 510 having a stirrer used in a general business restaurant. (See FIG. 9). Further, the arrangement method of the duct 10 is not limited to this, but the size of the main body 121 of the flow guide member 120 is set so as to match the size of the air outlet 112 of the tube body 110, and the duct 10 is merely a single unit. An effect of isolating a contamination source in the air by forming the airflow around the furnace tool 510 by the airflow flowing in the tube body 110 by the induction of the flow guide groove 123 by forming the airflow member 120 and the tube body 110 alone. To achieve.

  Referring to FIGS. 10A, 10B, and 11, it is the duct 10 disclosed by the fourth embodiment of the present invention, and the structures of the fourth and third embodiments disclosed by the present invention are substantially the same. Yes, the following only explains the differences between the two. In the duct 10 disclosed in the fourth embodiment of the present invention, the two sides adjacent to the air outlet 112 on the tube body 110 each have a groove 113, and the groove 113 extends in the axial direction of the tube 110. The width of the concave groove 113 is adapted to the thickness of the panel 122 of the flow guide member 120. Accordingly, when the flow guide member 120 and the pipe body 110 are coupled to each other, the opposite side sides of the main body 121 of the panel 122 are fitted into the concave grooves 113 of the pipe body 110, respectively. The flow guide member 120 is stably coupled to the tube body 110 to avoid occurrence of a situation in which the flow guide member 120 separates the tube body 110 from the air outlet 112.

  Therefore, when the duct 10 is disposed in the smoke evacuator 1, the smoke evacuator 1 can be applied to a blow-up type usage environment, for example, in addition to forming a piece-like air wall by a method in which a work table blows upward, The smoke blower 1 can be applied to a use environment of a blow-down method, can be applied to a commercial space such as a department store, a restaurant, or a sales floor, is used above a gate 7 where a staff enters and exits, and is directed downward by a duct 10. A flake-like air wall is formed, and a pollution source floating in the air is isolated outside the commercial space, and air cleanliness in the commercial space is maintained.

In the present invention, the preferred embodiments have been disclosed as described above, but these are not intended to limit the present invention in any way, and anyone who is familiar with the technology can make an equivalent scope without departing from the spirit and scope of the present invention. Of course, various fluctuations and hydration colors can be added.

DESCRIPTION OF SYMBOLS 1 Smoke guide 10 Duct 110 Pipe body 111 Passage 112 Outlet 113 Dent groove 120 Flow guide member 121 Main body 1211 Mounting part 1212 Engagement part 1213 Through-hole 1214 Connection area 122 Panel 1221 Fitting piece 123 Current introduction groove 1231 Current collection Stage 1232 Rectification stage 1233 Flow guide stage 1234 Hole 124 Convex block 125 Fitting groove 126 Shaft 1261 Texture structure 130 Current guide 20 Machine body 210 Control plate 30 Adapter pipe 310 Air inlet 40 Fan 5 Worktable 510 Furnace 520 Work area 6 Oil smoke ejector 7 Electric glass door

Claims (10)

A duct for application on a smoke evacuator, wherein the smoke evacuator comprises at least one fan module and is used to generate an air flow, the duct comprising:
A tubular body having an air outlet, wherein the air outlet is installed on a surface of the tubular body along an axial direction of the tubular body, and has a passage communicating with the air outlet in the tubular body. A pipe that circulates in the passage;
At least one flow member detachably disposed on the air outlet, wherein the flow guide member includes a flow guide groove, and the flow guide groove includes a current collecting stage, a rectifying stage, and a current guide stage; The rectifying stage is connected between the collecting stage and the diverting stage, the width of the collecting stage is larger than the width of the rectifying stage, the width of the rectifying stage is larger than the width of the diverting stage, and The airflow is concentrated in the current collecting stage, enters the rectifying stage, and is discharged to the outside of the tube through compression of the rectifying stage and the diverting stage; and
A duct characterized by including.   The flow guide groove is installed on the flow guide member along the axial direction of the tube, penetrates the flow guide member along the radial direction of the tube, and the current collecting stage and the rectifying stage 2. The duct according to claim 1, wherein the duct is perpendicular to an axis of the tube body, and the flow guide stage is inclined to the rectification stage.   The flow guide member further includes a main body and a panel, the panel is installed on the main body, the flow guide groove passes through the main body, the flow guide stage passes through the panel, and the main body And the width of the panel is larger than the width of the air outlet, the flow guide member is fitted into the air outlet by the main body, and the panel is mounted on the tube body. The duct according to claim 1, wherein the duct is coupled to the duct.   Furthermore, an engaging part and a mounting part are included, the current collecting stage penetrates the engaging part, the rectifying stage and the flow guiding stage penetrate the mounting part, and the width of the engaging part is The width of the air outlet is adapted to the width of the air outlet, and the width of the mounting portion is larger than the width of the air outlet, the flow guide member is engaged with the engaging portion in the air outlet, The duct according to claim 1, wherein the duct is locked on the duct.   The duct according to claim 1, further comprising a plurality of flow guide members, wherein the plurality of flow guide members are arranged in series in the air outlet along the axial direction of the tube body.   One of the two adjacent flow guide members in the plurality of flow guide members has a convex block, the other has a fitting groove that fits the convex block, and the two adjacent flow guide members The duct according to claim 5, wherein the convex blocks are fitted in the fitting grooves and connected in series with each other.   The flow guide member further includes at least one through hole and a shaft rod, and the through hole is installed on the flow guide member along an axial direction of the tube body, and the shaft rod The duct according to claim 1, wherein the duct is installed through the through hole.   A flow guide member disposed at an air outlet of the duct, wherein the air flow is included in the duct, and the air flow passes through the flow guide member and flows out of the duct; The current guide member includes a current guide groove, the current guide groove includes a current collecting stage, a rectifying stage, and a current introducing stage, and the rectifying stage is connected to the current collecting stage. Connected between the current-flow stages, the width of the current-collecting stage is larger than the width of the rectifying stage, the width of the current-rectifying stage is larger than the width of the current-flowing stage, and the airflow is A current-conducting member that collects in a stage, enters the rectifying stage, and is discharged out of the duct through compression of the rectifying stage and the diverting stage.   The panel further includes a main body and a panel, the panel is installed on the main body, the flow guide groove passes through the main body, the flow guide stage passes through the panel, and the width of the main body extends from the main body. The width of the panel is larger than the width of the main body, the flow guide member is fitted into the air outlet by the main body, and the panel is coupled to the duct. The flow guide member according to claim 8.   Furthermore, an engaging part and a mounting part are included, the current collecting stage penetrates the engaging part, the rectifying stage and the flow guiding stage penetrate the mounting part, and the width of the engaging part is The width of the air outlet is adapted to the width of the air outlet, and the width of the mounting portion is larger than the width of the air outlet, the flow guide member is engaged with the engaging portion in the air outlet, The current guide member according to claim 8, wherein the current guide member is locked on the duct.

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