Gas flow rate adjusting device and natural gas supply system
By designing a compact gas flow regulation device in a gas boiler and adjusting the flow rate using components such as threaded pipes and fixed discs, the problems of poor gas ratio mixing effect and difficult installation are solved, and the combustion efficiency and gas supply stability are improved.
Patent Information
- Application Number
- CN202420886061.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-26
AI Technical Summary
In existing gas boilers, the gas ratio mixing effect of the central flame and the peripheral flame is not ideal, resulting in poor combustion effect and reduced steam supply efficiency. The existing flow regulation device is difficult to install, due to the limited pipeline length. question.
A gas flow regulation device is designed, connected to the end of the gas delivery pipeline through a threaded pipe, and the flow adjustment is achieved using components such as fixed discs, adjustment plates and adjustment wheels. The structure is compact and does not require large-size connectors, which simplifies the installation process. .
It achieves a smaller installation space requirement, simplifies the installation process, and improves the gas supply stability and combustion efficiency of the natural gas supply system.
Smart Images
Figure CN222210379U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas boilers, in particular to a gas flow regulating device and a natural gas supply system. Background Art
[0002] The gas boiler uses natural gas as fuel, and the burner is a proportional regulation burner. The intake of natural gas is controlled by a single solenoid valve of the boiler flame disk, and the air supply is controlled by the blower frequency conversion. The two are mixed in different gas ratios and enter the gas boiler for combustion. The existing proportional regulation burner determines the gas ratio under ten load rates, i.e., 10%-100% load rate, and fits a curve of load rate and gas ratio, and uses this curve to control the flame size and gas state of the boiler. When the fire is low, only the central flame gas supply pipeline of the flame disk sprays natural gas. When it is converted to high fire, the central flame gas supply pipeline and the peripheral flame gas supply pipeline simultaneously spray natural gas for combustion. However, the amount of natural gas entering the furnace body is only controlled by a single solenoid valve, and the natural gas supplied by the central flame gas supply pipeline and the peripheral flame gas supply pipeline increases and decreases at the same time, while the combustion characteristics of the two are different, resulting in an unsatisfactory mixing effect of the gas ratio of the central flame and the peripheral flame, resulting in an unsatisfactory combustion effect and reduced steam supply efficiency.
[0003] In this regard, the flow regulating device disclosed in the prior art is set in the middle of the pipeline and changes the flow of the pipeline by moving the internal regulating member. However, the device needs to be set on the pipeline downstream of the central flame gas supply pipeline and the peripheral flame gas supply pipeline split position, and a certain length of straight pipe section is set upstream and downstream of the set position to connect flanges and other connectors. However, in actual use scenarios, the pipeline length is limited, the installation difficulty is relatively large, and the use scenarios are limited. Utility Model Content
[0004] The utility model aims to provide a gas flow regulating device and a natural gas supply system to solve the problem of relatively great difficulty in installation of the existing flow regulating devices.
[0005] The utility model provides a gas flow regulating device, which is arranged at the end of a gas delivery pipeline, comprises a threaded tube, a fixed disk, an adjusting piece and an adjusting wheel, the threaded tube is threadedly connected to the gas delivery pipeline, the fixed disk is threadedly connected to the threaded tube, a vent hole connected to the threaded tube is arranged at the center of the fixed disk, a plurality of slide grooves are arranged on the fixed disk, the plurality of slide grooves are distributed in a circular array on the fixed disk, a plurality of adjusting pieces are arranged, the plurality of adjusting pieces correspond to the plurality of slide grooves one by one, the sides of two adjacent adjusting pieces contact each other, the plurality of adjusting pieces are jointly enclosed to form an adjusting channel coaxial with the vent hole, the adjusting piece can slide along the slide groove to change the size of the adjusting channel, the adjusting wheel can be rotatably sleeved on the fixed disk, and the adjusting wheel is used to drive the plurality of adjusting pieces to slide along the plurality of slide grooves respectively.
[0006] As a preferred technical solution for the gas flow regulating device, the regulating wheel includes an outer ring, an inner ring and multiple spokes. The outer ring can be rotatably mounted on the outer periphery of the fixed plate, the inner ring is coaxially arranged with the outer ring, the two ends of the spoke are respectively fixedly connected to the outer ring and the inner ring, the multiple spokes correspond one by one to the multiple regulating plates, and the spokes are used to drive the regulating plates to slide along the slide grooves.
[0007] As a preferred technical solution of the gas flow regulating device, the extension direction of the spoke plate is inclined relative to the radial direction of the regulating wheel.
[0008] As an optimal technical solution for the gas flow regulating device, a guide groove extending along the length direction of the spoke is opened on the spoke plate, and a slider is fixedly connected to the regulating plate. The slider slides in cooperation with the groove wall of the guide groove, and the slider slides in cooperation with the groove wall of the slide groove.
[0009] As a preferred technical solution of the gas flow regulating device, a locking piece is further provided on the regulating wheel, and the locking piece is used to lock the regulating wheel on the fixed plate.
[0010] As a preferred technical solution for the gas flow regulating device, the slide groove includes a main slide groove and a secondary slide groove that are interconnected. When the regulating piece slides from the main slide groove to the secondary slide groove, the regulating channel expands.
[0011] As a preferred technical solution for the gas flow regulating device, the regulating piece is configured as a triangular plate structure, the two sides of the regulating piece are respectively fixedly connected with the first appendage and the second appendage, and the first appendage and the second appendage of two adjacent regulating pieces are slidably connected.
[0012] As the preferred technical solution for the gas flow regulating device,
[0013] The first accessory comprises a first reference block, a first connecting block and a first sliding block, the first reference block and the first sliding block are fixedly connected via the first connecting block, the first reference block, the first sliding block and the first connecting block form a first connecting groove, the first reference block is fixedly connected to one of the side edges of the adjusting piece, and the first sliding block is spaced apart from one of the side edges of the adjusting piece;
[0014] The second accessory includes a second reference block, a second connecting block and a second sliding block. The second reference block and the second sliding block are fixedly connected via the second connecting block. The second reference block, the second sliding block and the second connecting block form a second connecting groove. The second reference block is fixedly connected to the other side of the adjusting piece. The second sliding block and the other side of the adjusting piece are spaced apart. The first sliding block is slidably connected to the second connecting groove of an adjacent adjusting piece, and the second sliding block is slidably connected to the first connecting groove of another adjacent adjusting piece.
[0015] As a preferred technical solution for the gas flow regulating device, the first reference block is flush with the bottom surface of the regulating plate, the second reference block is flush with the top surface of the regulating plate, the distance between the first sliding block and the top surface is equal to the thickness of the second reference block, and the distance between the second sliding block and the bottom surface is equal to the thickness of the first reference block.
[0016] The utility model provides a natural gas supply system, comprising a central flame gas supply pipeline and a peripheral flame gas supply pipeline connected to each other; and also comprising a gas flow regulating device of any of the above schemes, wherein a threaded pipe is threadedly connected to the end of the central flame gas supply pipeline.
[0017] The beneficial effects of the utility model are:
[0018] The utility model provides a gas flow regulating device, which is connected to the end of the gas delivery pipeline through a threaded pipe, is less restricted by the installation space, and is easier to install. By arranging multiple slide grooves on the fixed plate, multiple adjustment plates slide along the multiple slide grooves respectively and enclose to form an adjustment channel, and the adjustment wheel drives the multiple adjustment plates to slide along the slide grooves to change the size of the adjustment channel to achieve flow regulation. The adjustment plates are arranged on the fixed plate and the adjustment wheel is sleeved on the fixed plate, so that the structure of the flow regulating device is more compact, and there is no need to arrange large-sized connectors such as flanges, and the demand for installation space is smaller. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of the gas flow regulating device in the embodiment of the utility model;
[0020] Figure 2 It is a structural schematic diagram of the fixed plate of the gas flow regulating device in the embodiment of the utility model;
[0021] Figure 3 It is a schematic diagram of the structure of the regulating piece of the gas flow regulating device in the embodiment of the utility model;
[0022] Figure 4 for Figure 3 A partial enlarged view of part A;
[0023] Figure 5 It is a front view of the regulating piece of the gas flow regulating device in the embodiment of the utility model.
[0024] In the figure:
[0025] 1. fixed plate; 11. slide groove; 111. main slide groove; 112. auxiliary slide groove; 12. vent hole;
[0026] 2. Adjustment sheet; 21. Sliding block; 22. First accessory; 221. First reference block; 222. First connecting block; 223. First sliding block; 224. First connecting groove; 225. First matching groove; 23. Second accessory; 231. Second reference block; 232. Second connecting block; 233. Second sliding block; 234. Second connecting groove; 235. Second matching groove;
[0027] 3. Adjusting wheel; 31. Inner ring; 32. Outer ring; 33. Spoke plate; 34. Guide groove; 35. Locking piece;
[0028] 4. Threaded pipe. DETAILED DESCRIPTION
[0029] The following will clearly and completely describe the technical solution of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.
[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0033] like Figure 1-Figure 5 As shown, the utility model provides a gas flow regulating device, which is arranged at the end of the gas delivery pipeline, including a threaded tube 4, a fixed plate 1, an adjusting piece 2 and an adjusting wheel 3, the threaded tube 4 is threadedly connected to the gas delivery pipeline, the fixed plate 1 is threadedly connected to the threaded tube 4, a vent hole 12 connected to the threaded tube 4 is arranged at the center of the fixed plate 1, a plurality of slide grooves 11 are provided on the fixed plate 1, and the plurality of slide grooves 11 are distributed in a circular array on the fixed plate 1, a plurality of adjusting pieces 2 are arranged, and the plurality of adjusting pieces 2 correspond to the plurality of slide grooves 11 one by one, and the sides of two adjacent adjusting pieces 2 contact each other, and the plurality of adjusting pieces 2 are jointly enclosed to form an adjusting channel coaxial with the vent hole 12, and the adjusting piece 2 can slide along the slide groove 11 to change the size of the adjusting channel, and the adjusting wheel 3 can be rotatably sleeved on the fixed plate 1, and the adjusting wheel 3 is used to drive the plurality of adjusting pieces 2 to slide along the plurality of slide grooves 11 respectively. It is connected to the end of the gas delivery pipeline through the threaded tube 4, which is less restricted by the installation space and easier to install. By arranging a plurality of slide grooves 11 on the fixed plate 1, a plurality of adjustment pieces 2 slide along the plurality of slide grooves 11 and enclose to form an adjustment channel, and the adjustment wheel 3 drives the plurality of adjustment pieces 2 to slide along the slide grooves 11, changes the size of the adjustment channel, and realizes the flow adjustment. The adjustment pieces 2 are arranged on the fixed plate 1 and the adjustment wheel 3 is sleeved on the fixed plate 1, and the structure of the flow adjustment device is more compact, and there is no need to arrange large-size connectors such as flanges, and the installation space requirement is smaller.
[0034] Furthermore, if Figure 1As shown, the adjusting wheel 3 includes an outer ring 32, an inner ring 31 and a plurality of spokes 33. The outer ring 32 and the inner ring 31 are located in the same plane and are coaxially arranged with the fixed disk 1. The outer ring 32 can be rotatably sleeved on the outer periphery of the fixed disk 1, and the inner side wall of the outer ring 32 covers the outer edge of the fixed disk 1 and fits with the outer edge of the fixed disk 1 to prevent the adjusting wheel 3 and the fixed disk 1 from moving relative to each other during rotation. One side of the outer ring 32 covers the outer surface of the fixed disk 1, and the other side can be provided with a bendable clamping protrusion (not shown in the figure). During assembly, one side of the outer ring 32 is first sleeved on the outer surface of the fixed disk 1, and then the clamping protrusion is bent to the other side of the outer ring 32 to limit the adjusting wheel 3 and prevent the adjusting wheel 3 from falling off along the axial direction of the fixed disk 1. The plurality of spokes 33 are arranged in a circular array, and the two ends of the spokes 33 are fixedly connected to the outer ring 32 and the inner ring 31 respectively. In this embodiment, the outer ring 32, the inner ring 31 and the plurality of spokes 33 are integrally formed and manufactured. The multiple spokes 33 correspond to the multiple adjustment pieces 2 one by one, and the multiple spokes 33 are used to drive the multiple adjustment pieces 2 to slide along their corresponding slide grooves 11, so that the multiple adjustment pieces 2 slide simultaneously to expand or shrink the adjustment channel.
[0035] Specifically, the spoke plate 33 is provided with a guide groove 34 extending along the length direction of the spoke plate 33, and the adjusting piece 2 is slidably matched with the guide groove 34. Multiple adjusting pieces 2 are located between the fixed plate 1 and the adjusting wheel 3, and each adjusting piece 2 is fixedly connected with a slider 21, and the slider 21 is arranged through the adjusting piece 2. One end of the slider 21 is located in the slide groove 11 of the fixed plate 1 and is slidably matched with the groove wall of the slide groove 11, and the other end of the slider 21 is located in the guide groove 34 of the spoke plate 33 and is slidably matched with the groove wall of the guide groove 34. When the adjusting wheel 3 rotates, the groove wall of the guide groove 34 pushes the slider 21 to slide along the slide groove 11 to change the relative position of the adjusting piece 2 on the fixed plate 1; at the same time, under the constraint of the two adjacent guide pieces, the adjusting piece 2 rotates at a certain angle with the slider 21 as the center, and multiple adjusting pieces 2 cooperate with each other to enclose a regular polygonal adjustment channel, and the side length of the adjustment channel depends on the position of the adjusting piece 2 on the fixed plate 1 and the rotation angle of the adjusting piece 2. During the adjustment process, the inner ring 31 and the outer ring 32 jointly support the spoke plate 33 to ensure good structural strength of the adjusting wheel 3 .
[0036] Furthermore, when the adjusting wheel 3 rotates, the groove wall of the guide groove 34 on the spoke 33 bears the reaction force from the slider 21 and the slider 21 rotates along its own axis during the adjustment process, that is, there is friction between the groove wall of the guide groove 34 and the slider 21. If the spoke 33 is set to extend along the radial direction of the adjusting wheel 3, the guide groove 34 extends along the radial direction of the adjusting wheel 3, and the component of the reaction force along the direction of the groove wall of the guide groove 34 is large, which is easy to wear. Therefore, the extension direction of the spoke 33 in this embodiment is set at a certain angle relative to the radial direction of the adjusting wheel 3. During the adjustment process, the component of the reaction force of the slider 21 on the groove wall of the guide groove 34 along the direction of the groove wall of the guide groove 34 is small, and the slider 21 slides along the guide groove 34 for a long distance, which reduces wear on the one hand, and on the other hand, because the slider 21 slides along the guide groove 34 for a long distance, the wear area is not concentrated in a certain local position, thereby extending the service life.
[0037] Optionally, a locking member 35 is further provided on the adjusting wheel 3, and the locking member 35 is used to lock the adjusting wheel 3 on the fixed disk 1 to prevent the adjusting wheel 3 and the fixed disk 1 from rotating relative to each other, so as to keep the adjusted flow unchanged. In this embodiment, the locking member 35 is preferably a locking screw.
[0038] Furthermore, if Figure 1-Figure 2 As shown, each slide groove 11 includes a main slide groove 111 and a secondary slide groove 112 that are interconnected, wherein two secondary slide grooves 112 are provided and are respectively located at the two ends of the main slide groove 111. When the slider 21 is in the middle position of the main slide groove 111, the distance between the slider 21 and the center of the fixed disk 1 is the shortest, that is, the multiple adjustment plates 2 close the vent 12 of the fixed disk 1. As the slider 21 slides away from the middle position of the main slide groove 111 in the main slide groove 111, the distance between the slider 21 and the center of the fixed disk 1 gradually increases, and the adjustment channel gradually expands. When the slider 21 slides to the secondary slide groove 112, the distance between the slider 21 and the center of the fixed disk 1 further increases, and the adjustment channel further expands. Both ends of the main slide groove 111 are connected to the secondary slide groove 112, so that the flow rate can be adjusted by rotating the adjustment wheel 3 clockwise or counterclockwise.
[0039] Specifically, Figure 3-Figure 5 As shown, combined with Figure 1 , six adjusting pieces 2 are provided, six corresponding chute 11 are provided, and six spokes 33 are provided. The adjusting piece 2 is provided as a triangular plate structure. Since the six adjusting pieces 2 are evenly distributed on the fixed plate 1, the angle between the two sides of the adjusting piece 2 is preferably 60 degrees, so that the adjusting pieces 2 cooperate with each other to form an adjusting channel. In other embodiments, the number of adjusting pieces 2 can also be set to eight, and the number of chute 11 and spokes 33 can be adjusted accordingly. In this case, the angle between the two sides of the adjusting piece 2 should be set to 45 degrees, which will not be described in detail here.
[0040] Furthermore, if Figure 3-Figure 5 As shown, the two sides of the adjusting sheet 2 are respectively fixedly connected with the first appendage 22 and the second appendage 23, and the first appendage 22 and the second appendage 23 of the two adjacent adjusting sheets 2 are slidably connected to ensure that the six adjusting sheets 2 can move synchronously to avoid the occurrence of jamming between two adjacent adjusting sheets 2, resulting in deformation or damage. The first appendage 22 includes a first reference block 221, a first connecting block 222 and a first sliding block 223. The first reference block 221 and the first sliding block 223 are fixedly connected through the first connecting block 222. In this embodiment, the first reference block 221, the first sliding block 223 and the first connecting block 222 are integrally formed and connected. The first reference block 221, the first sliding block 223 and the first connecting block 222 form a first connecting groove 224, the first reference block 221 is fixedly connected to one of the sides of the adjusting sheet 2, and the first sliding block 223 is spaced apart from one of the sides of the adjusting sheet 2. The second appendage 23 includes a second reference block 231, a second connecting block 232 and a second sliding block 233. The second reference block 231 is fixedly connected with the second sliding block 233 through the second connecting hole. In this embodiment, the second reference block 231, the second sliding block 233 and the second connecting block 232 are integrally connected. The second reference block 231, the second sliding block 233 and the second connecting block 232 form a second connecting groove 234. The second reference block 231 is fixedly connected with the other side of the adjusting plate 2, and the second sliding block 233 is spaced apart from the other side of the adjusting plate 2. The first sliding block 223 is slidably connected with the second connecting groove 234 of the adjacent adjusting plate 2, and the first connecting block 222 is located in the gap formed by the second sliding block 233 and the side of the adjacent adjusting plate 2 to avoid interference. The second sliding block 233 is slidably connected with the first connecting groove 224 of another adjacent adjusting plate 2, and the second connecting block 232 is located in the gap formed by the first sliding block 223 and the side of another adjacent adjusting plate 2 to avoid interference. By the first sliding block 223 cooperating with the second connecting groove 234, and the second sliding block 233 cooperating with the first connecting groove 224, the adjacent adjusting pieces 2 can slide along the sides of each other and keep in contact with each other to avoid separation. When one of the spokes 33 of the adjusting wheel 3 is damaged and cannot drive the corresponding adjusting piece 2 to slide, the adjusting piece 2 can also slide along the slide groove 11 driven by the two adjacent adjusting pieces 2.
[0041] For further information, please refer to Figure 3-Figure 5As shown, the first reference block 221 is flush with the bottom surface of the adjusting sheet 2, and the second reference block 231 is flush with the top surface of the adjusting sheet 2. The distance between the first sliding block 223 and the top surface is equal to the thickness of the second reference block 231, and the distance between the second sliding block 233 and the bottom surface is equal to the thickness of the first reference block 221. The first sliding block 223 and the adjusting sheet 2 form a first matching groove 225, and the second reference block 231 can slide and match with the first matching groove 225. A second matching groove 235 is formed between the second sliding block 233 and the adjusting sheet 2, and the first reference block 221 can slide and match with the second matching groove 235. When two adjacent adjusting sheets 2 are connected, the top and bottom surfaces of the two adjusting sheets 2 are located in the same plane, ensuring the sealing performance at the connection position of the adjacent adjusting sheets 2 and avoiding the occurrence of gas blowby. In this embodiment, the structure and size of the first accessory 22 and the second accessory 23 are exactly the same. One is installed flush with the top surface, and the other is installed flush with the bottom surface to form a centrally symmetrical structure. When assembling multiple adjustment plates 2, there is no need to distinguish between the up, down, left and right of the adjustment plates 2, thereby reducing the difficulty of installation.
[0042] The utility model provides a natural gas supply system, comprising a central flame gas supply pipeline and a peripheral flame gas supply pipeline connected to each other. It also comprises a gas flow regulating device in this embodiment, wherein a threaded pipe 4 of the gas flow regulating device is threadedly connected to the end of the central flame gas supply pipeline. By setting the gas flow regulating device in this embodiment, the gas supply stability of the natural gas supply system is improved, and the combustion efficiency of natural gas in the boiler is better and more ideal.
[0043] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. Gas flow regulating device, installed at the end of the gas delivery pipeline, It is characterized in that include: A threaded pipe (4), wherein the threaded pipe (4) is threadably connected to the gas delivery pipeline; A fixed plate (1), the fixed plate (1) being threadedly connected to the threaded tube (4), a vent hole (12) being arranged at the center of the fixed plate (1) and communicating with the threaded tube (4), the fixed plate (1) being provided with a plurality of slide grooves (11), the plurality of slide grooves (11) being distributed in a circular array on the fixed plate (1); An adjusting sheet (2), wherein the adjusting sheet (2) is provided in plurality, the plurality of adjusting sheets (2) correspond one to one with the plurality of slide grooves (11), the sides of two adjacent adjusting sheets (2) contact each other, the plurality of adjusting sheets (2) together enclose an adjusting channel coaxial with the vent hole (12), and the adjusting sheet (2) can slide along the slide groove (11) to change the size of the adjusting channel; An adjusting wheel (3), the adjusting wheel (3) being rotatably sleeved on the fixed plate (1), and the adjusting wheel (3) being used for driving the plurality of adjusting plates (2) to slide respectively along the plurality of sliding grooves (11).
2. The gas flow regulating device according to claim 1, It is characterized in that The regulating wheel (3) comprises an outer ring (32), an inner ring (31) and a plurality of spokes (33); the outer ring (32) is rotatably sleeved on the outer periphery of the fixed plate (1); the inner ring (31) and the outer ring (32) are coaxially arranged; two ends of the spokes (33) are respectively fixedly connected to the outer ring (32) and the inner ring (31); the plurality of spokes (33) correspond to the plurality of regulating plates (2) one by one; the spokes (33) are used to drive the regulating plates (2) to slide along the slide groove (11).
3. The gas flow regulating device according to claim 2, It is characterized in that The extension direction of the spoke plate (33) is arranged to be inclined relative to the radial direction of the adjusting wheel (3).
4. The gas flow regulating device according to claim 3, It is characterized in that The spoke plate (33) is provided with a guide groove (34) extending along the length direction of the spoke plate (33); the adjustment plate (2) is fixedly connected with a slider (21); the slider (21) is slidably matched with the groove wall of the guide groove (34); and the slider (21) is slidably matched with the groove wall of the slide groove (11).
5. The gas flow regulating device according to claim 4, It is characterized in that The adjusting wheel (3) is also provided with a locking piece (35), and the locking piece (35) is used to lock the adjusting wheel (3) on the fixed plate (1).
6. The gas flow regulating device according to claim 1, It is characterized in that The sliding groove (11) comprises a main sliding groove (111) and a secondary sliding groove (112) which are connected to each other, and when the adjusting piece (2) slides from the main sliding groove (111) to the secondary sliding groove (112), the adjusting channel is expanded.
7. The gas flow regulating device according to claim 1, It is characterized in that The adjusting piece (2) is configured as a triangular plate-shaped structure, and two side edges of the adjusting piece (2) are respectively fixedly connected with a first appendage (22) and a second appendage (23), and the first appendage (22) and the second appendage (23) of two adjacent adjusting pieces (2) are slidably connected.
8. The gas flow regulating device according to claim 7, It is characterized in that The first attachment (22) comprises a first reference block (221), a first connecting block (222) and a first sliding block (223); the first reference block (221) and the first sliding block (223) are fixedly connected via the first connecting block (222); the first reference block (221), the first sliding block (223) and the first connecting block (222) form a first connecting groove (224); the first reference block (221) is fixedly connected to one side edge of the adjusting piece (2); the first sliding block (223) is spaced apart from one side edge of the adjusting piece (2); The second attachment (23) comprises a second reference block (231), a second connecting block (232) and a second sliding block (233); the second reference block (231) and the second sliding block (233) are fixedly connected via the second connecting block (232); the second reference block (231), the second sliding block (233) and the second connecting block (232) form a second connecting groove (234); the second reference block (231) is fixedly connected to the other side of the adjusting piece (2); the second sliding block (233) and the other side of the adjusting piece (2) are spaced apart; the first sliding block (223) is slidably connected to the second connecting groove (234) of an adjacent adjusting piece (2); the second sliding block (233) is slidably connected to the first connecting groove (224) of another adjacent adjusting piece (2).
9. The gas flow regulating device according to claim 8, It is characterized in that The first reference block (221) is flush with the bottom surface of the adjustment sheet (2), the second reference block (231) is flush with the top surface of the adjustment sheet (2), the distance between the first sliding block (223) and the top surface is equal to the thickness of the second reference block (231), and the distance between the second sliding block (233) and the bottom surface is equal to the thickness of the first reference block (221).
10. Natural gas supply system, including interconnected central flame gas supply pipeline and peripheral flame gas supply pipeline; It is characterized in that It also comprises the gas flow regulating device according to any one of claims 1 to 9, wherein the threaded pipe (4) is threadedly connected to the end of the central flame gas supply pipeline.