Airflow acceleration venturi tube

Abstract

The venturi tube comprises a tube body and a base, the tube body comprises a throat portion, a contraction section and a diffusion section, positioning rods are fixedly connected to the bottom of the contraction section and the bottom of the diffusion section respectively, a filter groove is formed in an end opening of the contraction section, a filter plate is installed in the filter groove, and the base is fixedly connected with the base. A filter screen is installed on the filter plate, a pair of positioning cylinders are fixedly connected to the top of the base, and a heat conduction assembly and an air cooling assembly are installed on the two sides of the base correspondingly. The venturi tube is good in heat dissipation effect, can effectively avoid the situation that normal work of the venturi tube is affected due to the fact that heat dissipation is not timely enough when the venturi tube works in a high-temperature environment, and can filter airflow before the airflow enters the contraction section so as to remove dust and particulate matter in the airflow, thereby effectively avoiding blockage caused by the fact that the dust and the particulate matter are gathered at the throat, and improving the service life of the venturi tube. Meanwhile, abrasion of dust and particles to the inner wall of the pipe body is also avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of venturi tubes, in particular to a venturi tube for accelerating airflow. Background Art

[0002] The Venturi tube is mainly used in the field of fluid control and measurement. Its core principle is to use the contraction and acceleration of air or water flow to produce a vacuum effect, thereby achieving fluid control or measurement. The Venturi tube can accelerate the airflow through its unique contraction section, throat and diffusion section structure. By effectively utilizing the function of the Venturi tube to accelerate the airflow, it can be applied to various industrial and daily life scenarios.

[0003] There are many types of Venturi tubes on the market. For example, a Venturi tube with a publication number of CN206787631U is disclosed on the Chinese Patent Network. Compared with other Venturi tubes on the market, this Venturi tube is lighter in weight, has less consumables, can ensure the accuracy of measurement, has a simple structure, is highly practical, and has a long service life. However, there are some defects and deficiencies that need to be improved: (1) Some existing Venturi tubes lack a heat dissipation structure. When working in a high temperature environment, the surface heat of the Venturi tube is difficult to be discharged in time, thereby affecting its normal operation; (2) When some existing Venturi tubes are accelerating the airflow, it is difficult to filter the airflow before it enters the contraction section, so that dust and particulate matter in the airflow are easily gathered in the throat and cause blockage, thereby affecting the flow and acceleration of the airflow. In addition, the dust and particulate matter in the airflow will also cause wear on the inner wall of the Venturi tube, thereby affecting the service life and performance of the pipeline. Therefore, in view of the above problems, the Venturi tube for airflow acceleration provided by the utility model is of great significance. Utility Model Content

[0004] The utility model provides a venturi tube for accelerating airflow, which can fully absorb the surface heat of the tube body through the heat conduction component and quickly diffuse it into the surrounding air, thereby effectively improving the heat dissipation performance of the tube body, and can accelerate the air flow speed around the tube body and the heat conduction component through the air cooling component, so that the hot air can be discharged in time, thereby further improving the heat dissipation performance of the tube body, and effectively avoiding the normal operation of the venturi tube due to insufficient heat dissipation when working in a high-temperature environment; the filter net on the filter plate can filter the airflow before it enters the contraction section to remove dust and particulate matter in the airflow, thereby effectively avoiding the accumulation of dust and particulate matter in the throat to cause blockage, and also avoiding the wear of the inner wall of the tube body by dust and particulate matter, and in summary, solving the problems in the background technology.

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] The utility model discloses a venturi tube for accelerating airflow, comprising a tube body and a base, wherein the tube body comprises a throat, a contraction section and a diffusion section, the bottoms of the contraction section and the diffusion section are fixedly connected with positioning rods, and a filter groove is provided at the port of the contraction section, the filter groove is a circular stepped groove structure, a filter plate is installed in the groove, a filter screen is installed on the filter plate, the base is located below the tube body, the side surface of the base is U-shaped, and a pair of positioning cylinders are fixedly connected to the top of the base, and a heat conduction component and an air cooling component are respectively installed on both sides of the base;

[0007] The heat conduction assembly comprises a heat conduction plate, which is arc-shaped, with a fixing block fixedly connected between the outer side of the heat conduction plate and the side wall of the base, and a plurality of heat conduction sheets fixedly connected to the inner side of the heat conduction plate;

[0008] The air cooling component includes a blast chamber and an air guide chamber, which are respectively installed on the side wall and the bottom of the base, and both of which have hollow structures inside. A plurality of fans are installed on the blast chamber, and the fan blades of the fans are located in the blast chamber. Air guide ducts are installed on both sides of the blast chamber, one end of the air guide duct is connected to the inner cavity of the blast chamber, and the other end thereof is installed on the side wall of the air guide chamber and connected to the inner cavity of the air guide chamber. A plurality of blowing pipes are fixedly connected to the top of the air guide chamber.

[0009] Furthermore, the heat conducting sheets are in the shape of long strips and are distributed in an equidistant annular array along the inner surface of the heat conducting plate.

[0010] Furthermore, the bottom end of the blowing pipe is connected to the inner cavity of the air guide bin, the top end of the blowing pipe is located directly below the heat conduction plate, and the blowing pipe is equidistantly linearly distributed along the length direction of the air guide bin.

[0011] Furthermore, side panels are fixedly connected on both sides of the air guide bin, the side panels are L-shaped, and a card slot is opened on the inner wall thereof, and a dust shield plate is installed between the side panels, a dust shield net is installed on the dust shield plate and is located above the blowing pipe, and card blocks are fixedly connected on both sides of the dust shield plate, the card block and the card slot are both rectangular, and the thickness of the card block is equal to the width of the card slot.

[0012] Furthermore, a plurality of mounting seats are fixedly connected to the top of the blast chamber, and a mounting hole is opened on the surface of each mounting seat, and a plurality of mounting columns are fixedly connected to the outer walls on both sides of the base, and the surface of the column body of the mounting column is engraved with an external thread, and a nut matching therewith is threadedly connected, the number of the mounting columns is the same as the mounting holes, the diameter is equal, and the center of each mounting column corresponds one-to-one to the center of each mounting hole.

[0013] Furthermore, the filter plate is circular, and its diameter is equal to the diameter of the filter tank, and a plurality of positioning holes are opened at the edge of the filter plate, and a plurality of positioning columns are fixedly connected to the bottom of the filter tank, and the number of the positioning columns and the positioning holes are the same, the diameters are equal, and the center of each positioning column corresponds one-to-one to the center of each positioning hole.

[0014] Furthermore, the positioning cylinder is cylindrical, and its inner diameter is equal to the diameter of the positioning rod, and the center of each positioning cylinder corresponds to the center of each positioning rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) When the airflow accelerating venturi tube of the utility model is in use, the heat conduction component can fully absorb the surface heat of the tube body and quickly diffuse it into the surrounding air, thereby effectively improving the heat dissipation performance of the tube body, and the air cooling component can accelerate the air flow speed around the tube body and the heat conduction component, so that the hot air can be discharged in time, thereby further improving the heat dissipation performance of the tube body, and effectively avoiding the normal operation of the venturi tube being affected by insufficient heat dissipation when working in a high temperature environment;

[0017] (2) When the airflow accelerating venturi tube of the utility model is in use, the filter screen on the filter plate can filter the airflow before it enters the contraction section, so as to remove dust and particulate matter in the airflow, thereby effectively preventing dust and particulate matter from gathering in the throat and causing blockage, and also preventing dust and particulate matter from wearing the inner wall of the tube body.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of a venturi tube for airflow acceleration of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the tube body in the utility model;

[0022] Figure 3 It is a front view of the tube body in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the base in the utility model;

[0024] Figure 5 It is a structural schematic diagram of the heat conduction component in the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the air cooling component in the utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the dust shield in the utility model;

[0027] Figure 8 It is a structural schematic diagram of the filter plate in the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Tube body; 2. Base; 3. Positioning rod; 4. Filter slot; 5. Filter plate; 6. Filter net; 7. Positioning cylinder; 8. Heat transfer plate; 9. Fixing block; 10. Heat transfer sheet; 11. Blowing chamber; 12. Air guide chamber; 13. Fan; 14. Air guide duct; 15. Blowing duct; 16. Side panel; 17. Slot; 18. Dust shield plate; 19. Dust shield net; 20. Block; 21. Mounting seat; 22. Mounting hole; 23. Mounting column; 24. Nut; 25. Positioning hole; 26. Positioning column. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that terms such as "relative", "one end", "inside", "lateral", "end", "two ends", "both sides", "front", "one end face", "the other end face" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] See also Figure 1-8As shown, a venturi tube for airflow acceleration of the utility model comprises a tube body 1 and a base 2, the tube body 1 comprises a throat, a contraction section and a diffusion section, the bottoms of the contraction section and the diffusion section are fixedly connected with positioning rods 3, and a filter slot 4 is provided at the port of the contraction section, the filter slot 4 is a circular stepped slot structure, a filter plate 5 is installed in the slot, a filter screen 6 is installed on the filter plate 5, the filter screen 6 can filter the airflow before it enters the contraction section, so as to remove dust and particulate matter in the airflow, thereby effectively avoiding the dust and particulate matter from gathering in the throat and causing blockage, and also avoiding the dust and particulate matter from wearing the inner wall of the tube body 1, the base 2 is located below the tube body 1, the side surface of which is U-shaped, and a pair of positioning cylinders 7 are fixedly connected to the top of the base 2, and a heat conduction component and an air cooling component are respectively installed on both sides of the base 2;

[0033] The heat conducting assembly includes a heat conducting plate 8, which is arc-shaped, and a fixing block 9 is fixedly connected between the outer side of the heat conducting plate 8 and the side wall of the base 2, and a plurality of heat conducting sheets 10 are fixedly connected to the inner side of the heat conducting plate 8. The heat conducting plate 8 is respectively attached to the front side and the rear side of the tube body 1, and the heat conducting plate 8 and the heat conducting sheets 10 are both made of metal materials with strong thermal conductivity such as copper. When the tube body 1 works for a long time, the heat conducting sheets 10 and the heat conducting plate 8 can fully absorb the surface heat of the tube body 1 and quickly diffuse it into the surrounding air, thereby effectively improving the heat dissipation performance of the tube body 1;

[0034] The air cooling component includes an air blast chamber 11 and an air guide chamber 12, which are respectively installed on the side wall and the bottom of the base 2, and both of which have hollow structures inside. A plurality of fans 13 are installed on the air blast chamber 11, and the blades of the fans 13 are located in the air blast chamber 11. Air guide ducts 14 are installed on both sides of the air blast chamber 11, one end of the air guide duct 14 is connected with the inner cavity of the air blast chamber 11, and the other end thereof is installed on the side wall of the air guide chamber 12 and is connected with the inner cavity of the air guide chamber 12. A plurality of blowing pipes 15 are fixedly connected to the top of the air guide chamber 12, and air can be blown by driving each fan 13. The blown air can be guided to the air guide chamber 12 through the air guide duct 14, and blown to the pipe body 1 and the heat-conducting component through each blowing pipe 15. At this time, the wind force can be used to accelerate the air flow speed around the pipe body 1 and the heat-conducting component, so that the hot air can be discharged in time, thereby further improving the heat dissipation performance of the pipe body 1.

[0035] The heat conducting sheets 10 are long strips and are distributed in an equidistant annular array along the inner surface of the heat conducting plate 8. The heat absorption and heat conduction range of the heat conducting plate 8 can be expanded by using multiple heat conducting sheets 10 to improve the efficiency of the entire heat conducting assembly.

[0036] Among them, the bottom end of the blowing pipe 15 is connected to the inner cavity of the air guide bin 12, and the top end pipe opening is located directly below the heat conduction plate 8, and the blowing pipe 15 is equidistantly linearly distributed along the length direction of the air guide bin 12. The blowing range of the air cooling assembly can be expanded by multiple blowing pipes 15 to improve the efficiency of the entire air cooling assembly.

[0037] Among them, both sides of the air guide bin 12 are fixedly connected with side panels 16, the side panels 16 are L-shaped, and the inner wall thereof is provided with a card slot 17, and a dust shield 18 is installed between the side panels 16, and a dust shield net 19 is installed on the dust shield 18, and is located above the blowing pipe 15, and both sides of the dust shield 18 are fixedly connected with a card block 20, the card block 20 and the card slot 17 are both rectangular, and the thickness of the card block 20 is equal to the slot width of the card slot 17, and the card block 20 can be aligned and fit in the corresponding card slot 17, The dust shield 18 can be fixed between the side panels 16 through the mutual cooperation between the clamping block 20 and the clamping slot 17. When the air-cooling component blows air to the tube body 1 and the heat-conducting component, the dust shield net 19 on the dust shield 18 can be used to block the dust to prevent the dust from being blown onto and adhering to the surface of the tube body 1 and the heat-conducting component due to the action of wind during the blowing process, thereby affecting the heat dissipation effect. The dust shield 18 can be pulled out from between the side panels 16 by sliding it so that the dust shield net 19 can be cleaned.

[0038] Among them, a plurality of mounting seats 21 are fixedly connected to the top of the blast chamber 11, and a mounting hole 22 is opened on the surface of each mounting seat 21. A plurality of mounting posts 23 are fixedly connected to the outer walls on both sides of the base 2. The surface of the column body of the mounting post 23 is engraved with an external thread, and a nut 24 matching it is threadedly connected thereto. The number of the mounting posts 23 and the mounting holes 22 are the same, and the diameters are equal. The center of each mounting post 23 corresponds to the center of each mounting hole 22 one by one. The mounting posts 23 can be aligned with and pass through each corresponding mounting hole 22. At this time, the nuts 24 are threadedly connected to each mounting post 23 and tightened. The blast chamber 11 can be fixed to the base 2 through the mutual cooperation among the mounting posts 23, the mounting holes 22 and the nuts 24. The blast chamber 11 can be removed from the base 2 by unscrewing the nuts 24, so as to maintain and replace related components.

[0039] Among them, the filter plate 5 is circular, and its diameter is equal to the diameter of the filter tank 4, and a plurality of positioning holes 25 are opened at the edge of the filter plate 5. A plurality of positioning posts 26 are fixedly connected to the bottom of the filter tank 4. The number of the positioning posts 26 and the positioning holes 25 are the same, and the diameters are equal. The center of each positioning post 26 corresponds to the center of each positioning hole 25 one by one. When the filter plate 5 is fitted in the filter tank 4, each positioning post 26 can be aligned with and pass through the corresponding positioning hole 25. At this time, the filter plate 5 can be positioned by the mutual cooperation between the positioning posts 26 and the positioning holes 25 to prevent it from loosening and displacement and affecting the filtering effect. The filter plate 5 can be taken out from the filter tank 4 so that the filter net 6 can be cleaned.

[0040] Among them, the positioning cylinder 7 is cylindrical, and its inner diameter is equal to the diameter of the positioning rod 3, and the center of each positioning cylinder 7 corresponds to the center of each positioning rod 3. When the tube body 1 is placed on the top of the base 2, each positioning rod 3 can be aligned and inserted into the corresponding positioning cylinder 7. At this time, the tube body 1 can be positioned through the mutual cooperation between the positioning rod 3 and the positioning cylinder 7 so as to fix it on the base 2, thereby preventing the tube body 1 from rolling and displacement during operation.

[0041] The circuits, electronic components and chip modules involved in the utility model are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0042] The standard parts used in the application documents can all be purchased from the market. All the components in this application document can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art. The electrical components appearing in this article are all electrically connected to the external main controller and 220V AC power, and the main controller can be a conventional known device that controls the LED lamp body, etc.

[0043] The working principle of the utility model is:

[0044] When the utility model is used, firstly, all the related electrical components are connected to the control switch and the power supply through the wires, and then the pipe body 1 is installed on the top of the base 2. When installing, the positioning rods 3 are aligned and inserted into the corresponding positioning cylinders 7. At this time, the pipe body 1 can be positioned by the mutual cooperation between the positioning rods 3 and the positioning cylinders 7 so as to be fixed on the base 2. The filter plate 5 is installed in the filter groove 4 of the contraction section of the pipe body 1. The filter screen 6 on the filter plate 5 can filter the airflow before it enters the contraction section so as to remove dust and particles in the airflow, thereby effectively avoiding the accumulation of dust and particles in the throat to cause blockage, and also avoiding the dust and particles on the inner wall of the pipe body 1. Wear, when the tube body 1 has been working for a long time, the heat conducting sheet 10 and the heat conducting plate 8 can fully absorb the surface heat of the tube body 1 and quickly diffuse it into the surrounding air, thereby effectively improving the heat dissipation performance of the tube body 1. At the same time, each fan 13 can be driven to blow air, and the blown air can be guided to the air guide bin 12 through the air guide pipe 14, and blown to the tube body 1 and the heat conducting component through each blowing pipe 15. At this time, the wind force can be used to speed up the air flow speed around the tube body 1 and the heat conducting component, so that the hot air can be discharged in time, thereby further improving the heat dissipation performance of the tube body 1, and effectively avoiding the normal operation of the venturi tube being affected by the untimely heat dissipation when working in a high temperature environment.

[0045] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A venturi tube for accelerating airflow, characterized in that: It comprises a tube body and a base, wherein the tube body comprises a throat, a contraction section and a diffusion section, the bottoms of the contraction section and the diffusion section are fixedly connected with positioning rods, and a filter groove is provided at the port of the contraction section, wherein the filter groove is a circular stepped groove structure, a filter plate is installed in the groove, and a filter screen is installed on the filter plate, the base is located below the tube body, and its side surface is U-shaped, and a pair of positioning cylinders are fixedly connected to the top of the base, and a heat conduction component and an air cooling component are respectively installed on both sides of the base; The heat conduction assembly comprises a heat conduction plate, which is arc-shaped, with a fixing block fixedly connected between the outer side of the heat conduction plate and the side wall of the base, and a plurality of heat conduction sheets fixedly connected to the inner side of the heat conduction plate; The air cooling component includes a blast chamber and an air guide chamber, which are respectively installed on the side wall and the bottom of the base, and both of which have hollow structures inside. A plurality of fans are installed on the blast chamber, and the fan blades of the fans are located in the blast chamber. Air guide ducts are installed on both sides of the blast chamber, one end of the air guide duct is connected to the inner cavity of the blast chamber, and the other end thereof is installed on the side wall of the air guide chamber and connected to the inner cavity of the air guide chamber. A plurality of blowing pipes are fixedly connected to the top of the air guide chamber.

2. The venturi tube for airflow acceleration according to claim 1, characterized in that: The heat conducting sheets are in the shape of long strips and are distributed in an equidistant annular array along the inner surface of the heat conducting plate.

3. The venturi tube for airflow acceleration according to claim 1, characterized in that: The bottom end of the blowing pipe is connected to the inner cavity of the air guide bin, the top end of the blowing pipe is located directly below the heat conduction plate, and the blowing pipe is equidistantly linearly distributed along the length direction of the air guide bin.

4. The venturi tube for airflow acceleration according to claim 1, characterized in that: Both sides of the air guide bin are fixedly connected with side panels, the side panels are L-shaped, and a card slot is opened on the inner wall thereof, and a dust shield is installed between the side panels, and a dust shield net is installed on the dust shield and is located above the blowing pipe, and both sides of the dust shield are fixedly connected with card blocks, the card block and the card slot are both rectangular, and the thickness of the card block is equal to the slot width of the card slot.

5. The venturi tube for airflow acceleration according to claim 1, characterized in that: The top of the blast chamber is fixedly connected with a plurality of mounting seats, and a mounting hole is opened on the surface of each mounting seat. The outer walls on both sides of the base are fixedly connected with a plurality of mounting columns, and the surface of the column body of the mounting column is engraved with an external thread, and a nut matching therewith is threadedly connected. The number of the mounting columns is the same as that of the mounting holes, and the diameters are equal, and the center of each mounting column corresponds one-to-one to the center of each mounting hole.

6. The venturi tube for airflow acceleration according to claim 1, characterized in that: The filter plate is circular, and its diameter is equal to the diameter of the filter tank. A plurality of positioning holes are opened at the edge of the filter plate. A plurality of positioning columns are fixedly connected to the bottom of the filter tank. The number of the positioning columns is the same as that of the positioning holes, and the diameters are equal. The center of each positioning column corresponds one-to-one to the center of each positioning hole.

7. The airflow accelerating venturi tube according to claim 1, characterized in that: The positioning cylinder is cylindrical, and its inner diameter is equal to the diameter of the positioning rod, and the center of each positioning cylinder corresponds to the center of each positioning rod.

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