Gas distribution rod assembly

Abstract

The utility model relates to the technical field of fuel gas distribution rods, and particularly discloses a gas distribution rod assembly which comprises a gas inlet rod, a gas outlet rod and a first control valve. The air outlet rod comprises a main rod and a first mounting seat arranged on the surface of the main rod, and the air inlet rod, the main rod and the first mounting seat are integrally formed; an air inlet channel is formed in the air inlet rod, and a first air outlet communicated with the air inlet channel is formed in the surface of the main rod; the first control valve is mounted on the first mounting seat, the first mounting seat is provided with a first connecting cavity extending into the main rod, the surface of the main rod is provided with a second air outlet hole penetrating through the inner wall of the first connecting cavity, and the air inlet channel communicates with the first connecting cavity; and the first control valve is used for blocking or opening the second air outlet hole. According to the utility model, the complexity of a forming die and the difficulty of later processing can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas distribution rod technical field especially a gas distribution rod assembly. BACKGROUND

[0002] The existing fire row type combustor generally adopts a gas distribution rod to control the heat load of fire row combustion, and through multi-section gas control, the heat load can meet the use needs of users, unnecessary heat loss can be avoided, and gas waste is reduced.

[0003] For example, the Chinese utility model patent with publication number CN221839701U discloses a similar gas distribution rod assembly. In the patent document, a gas distribution cavity is arranged in the gas distribution rod, and a mounting seat for mounting a solenoid valve is arranged on the surface of the gas distribution rod. A connecting cavity that communicates with the gas distribution cavity is arranged in the mounting seat. The connecting cavity and the gas distribution cavity need to be formed by different inserts or machining processes. Therefore, the structure of the existing gas distribution rod is relatively complex, which increases the complexity of the forming mold and the difficulty of subsequent processing. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of gas distribution rod assembly, and the complexity of forming mold and the difficulty of subsequent processing can be reduced.

[0005] To solve the above problems, the utility model adopts the following technical scheme:

[0006] The embodiment of the utility model provides a kind of gas distribution rod assembly, including intake rod, outlet rod and first control valve;The outlet rod includes main rod and the first mounting seat of being arranged on the surface of main rod, the intake rod, main rod and first mounting seat are integrally formed;Intake passage is arranged in the intake rod, and the surface of main rod is provided with the first gas outlet hole that communicates with intake passage;The first control valve is installed in the first mounting seat, and the first mounting seat is provided with the first connecting cavity that extends to the inside of main rod, and the surface of main rod is provided with the second gas outlet hole that penetrates to the inner wall of first connecting cavity, the intake passage is communicated with first connecting cavity, and the first control valve is used to block second gas outlet hole or open second gas outlet hole.

[0007] In some embodiments, a second control valve is also included, and the outlet rod further includes a second mounting seat arranged on the surface of the main rod;The main rod and the second mounting seat are integrally formed;The second control valve is installed in the second mounting seat, and the second mounting seat is provided with a second connecting cavity;The main rod is provided with a gas distribution cavity that communicates with the second connecting cavity;The surface of the main rod is provided with a third gas outlet hole that communicates with the gas distribution cavity;The intake passage is communicated with the second connecting cavity;The second control valve is used to control the communication or disconnection between the second connecting cavity and the gas distribution cavity.

[0008] In some embodiments, the inner wall of the air inlet channel is provided with a connecting hole, the middle part of the connecting hole is in communication with the air inlet channel, and the two ends of the connecting hole respectively penetrate the inner walls of the first connecting cavity and the second connecting cavity.

[0009] In some embodiments, the surface of the air outlet rod is provided with a first opening penetrating the inner wall of the first connecting cavity, the first opening is coaxially arranged with the connecting hole, and a first plug is fixed at the first opening to seal the first opening.

[0010] In some embodiments, the surface of the main rod is integrally formed with a protruding strip, the two ends of the protruding strip are respectively connected with the first mounting seat and the second mounting seat, and at least a part of the connecting hole is located inside the protruding strip.

[0011] In some embodiments, the air inlet channel extends to the inside of the main rod, and the first air outlet hole penetrates the inner wall of the air inlet channel.

[0012] In some embodiments, the main rod comprises a spacing block located inside the main rod, the spacing block separates the gas distribution cavity and the first connecting cavity, and the air inlet channel extends to the spacing block.

[0013] In some embodiments, the end of the gas distribution cavity away from the spacing block forms a second opening penetrating the surface of the main rod, and a second plug is fixed at the second opening to seal the second opening.

[0014] In some embodiments, the extension direction of the air inlet channel is parallel to the length direction of the air inlet rod, the side wall of the air inlet rod is provided with an air inlet in communication with the air inlet channel, the end of the air inlet channel away from the air outlet rod forms a third opening penetrating the surface of the air inlet rod, and a third plug is fixed at the third opening to seal the third opening.

[0015] In some embodiments, the inner wall of the first connecting cavity is provided with a protruding ring around the first air outlet hole, and the first control valve is used to abut against the protruding ring to block the first air outlet hole or to move away from the protruding ring to open the first air outlet hole.

[0016] In some embodiments, the main rod and the air inlet rod are vertically connected, the axial direction of the connecting hole is parallel to the length direction of the main rod, the first control valve and the second control valve are both piston type electromagnetic valves, the opening and closing directions of the first control valve and the second control valve are parallel, the opening and closing direction of the second control valve is perpendicular to the length direction of the main rod, and the opening and closing direction of the second control valve forms a preset included angle with the length direction of the air inlet rod.

[0017] The utility model discloses at least has following beneficial effect: the first connecting cavity of the first mounting seat of the utility model extends to the inside of main stem, and the second gas outlet hole on the surface of main stem is penetrated to the inner wall of first connecting cavity, and the gas in first connecting cavity directly sprays through second gas outlet hole, and first connecting cavity and original gas distribution cavity are combined as a whole, and this kind of structure design is more reasonable, and need not respectively form connecting cavity and gas distribution cavity, can reduce the complexity of forming mould and the difficulty of later processing. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of gas distribution rod subassembly of an embodiment of the utility model;

[0019] Figure 2 It is Figure 1 It is the structure schematic diagram of gas distribution rod subassembly in another visual angle of the utility model;

[0020] Figure 3 It is Figure 1 It is the sectional view schematic drawing of along A-A section line;

[0021] Figure 4 It is Figure 2 It is the sectional view schematic drawing of along B-B section line;

[0022] Figure 5 It is the side view schematic drawing of gas distribution rod subassembly of an embodiment of the utility model.

[0023] Among them, the reference sign is:

[0024] Air inlet rod 100, air inlet 101, air inlet channel 110, connecting hole 120;

[0025] Gas outlet rod 20, main stem 200, first gas outlet hole 201, second gas outlet hole 202, third gas outlet hole 203, convex ring 204, first mounting seat 210, first connecting cavity 211, second mounting seat 220, second connecting cavity 221, gas distribution cavity 230, spacer block 240, convex strip 250, first plug cover 261, second plug cover 262, third plug cover 263;

[0026] First control valve 310, second control valve 320. DETAILED DESCRIPTION

[0027] The utility model provides the following description of reference drawing to help comprehensively understand various embodiments of the utility model as defined in the claim and its equivalents. The description includes various specific details to help understanding, but these details should be regarded as just exemplary. Therefore, those skilled in the art will realize that various changes and modifications can be made to various embodiments described herein without departing from the scope and spirit of the utility model.

[0028] In the description of the utility model, it relates to the direction description, for example the direction or positional relation of the indication such as upper, lower, front, back, left, right is based on the direction or positional relation shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and is not indicating or implying that the indicated device or element must have a particular orientation, is constructed and operated in a particular orientation, therefore it cannot be understood as the limitation of the utility model.

[0029] It should be understood that when an element (e.g., a first element) is "connected" with another element (e.g., a second element), the element can be directly connected with the other element, or there can be an intervening element (e.g., a third element) between the element and the other element.

[0030] The embodiment of the utility model provides a kind of gas distribution rod assembly, as shown in Figures 1-4 The first control valve 310 is installed in the first mounting seat 210, and the first mounting seat 210 is provided with a first connecting cavity 211, which extends to the inside of the main rod 200. The surface of the main rod 200 is provided with a second gas outlet hole 202 that penetrates the inner wall of the first connecting cavity 221. The gas in the first connecting cavity 211 can be directly sprayed out through the second gas outlet hole 202. The gas inlet channel 110 is in communication with the first connecting cavity 211, and the gas in the gas inlet channel 110 can enter the first connecting cavity 211. The first control valve 310 is used to block the second gas outlet hole 202 or open the second gas outlet hole 202.

[0031] When the first control valve 310 blocks the second gas outlet hole 202, only the first gas outlet hole 201 sprays gas outwards. At this time, the thermal load is the smallest. When the first control valve 310 opens the second gas outlet hole 202, the first gas outlet hole 201 and the second gas outlet hole 202 both spray gas outwards. At this time, the thermal load increases, thereby forming multi-segment combustion control. Since the first connecting cavity 211 extends to the inside of the main rod 200, and the second gas outlet hole 202 penetrates the inner wall of the first connecting cavity 211, it is equivalent to the combination of the first connecting cavity 211 and the original gas distribution cavity. This structure design is more reasonable, and it is not necessary to form a connecting cavity and a gas distribution cavity separately, which can reduce the complexity of the forming die and the difficulty of later processing.

[0032] In some embodiments, such as Figures 1-4 As shown, the gas distribution rod assembly in this embodiment also includes a second control valve 320, and the gas outlet rod 20 also includes a second mounting base 220 disposed on the surface of the main rod 200. The main rod 200 and the second mounting base 220 are integrally formed. The second control valve 320 is mounted on the second mounting base 220. The second mounting base 220 is provided with a second connecting cavity 221. The main rod 200 is provided with a gas distribution chamber 230 communicating with the second connecting cavity 221. The surface of the main rod 200 is provided with a third gas outlet 203 communicating with the gas distribution chamber 230. The air inlet channel 110 communicates with the second connecting cavity 221, and the gas in the air inlet channel 110 can enter the second connecting cavity 221. The second control valve 320 is used to control the connection or disconnection of the second connecting cavity 221 and the gas distribution chamber 230.

[0033] When the first control valve 310 blocks the second vent 202 and the second control valve 320 disconnects the second connecting chamber 221 and the gas distribution chamber 230, only the first vent 201 ejects gas, resulting in the lowest heat load, which is the minimum level. When the first control valve 310 opens the second vent 202 and the second control valve 320 disconnects the second connecting chamber 221 and the gas distribution chamber 230, both the first and second vents eject gas, increasing the heat load, which is the intermediate level. When the first control valve 310 opens the second vent 202 and the second control valve 320 connects the second connecting chamber 221 and the gas distribution chamber 230, the first, second, and third vents eject gas, maximizing the heat load, which is the maximum level. Therefore, this embodiment further increases the number of heat load levels, allowing for precise control of the heat load and meeting diverse user needs.

[0034] In this embodiment, the number of second air outlets 202 can be less than the number of third air outlets 203. When the first control valve 310 blocks the second air outlets 202 and the second control valve 320 controls the second connecting chamber 221 and the gas distribution chamber 230 to connect, both the first air outlets 201 and the third air outlets 203 spray out gas, which is a higher grade. Since the number of second air outlets 202 is less than the number of third air outlets 203, the heat load of the higher grade is greater than the heat load of the middle grade, but less than the heat load of the maximum grade, so that the number of heat load grades reaches four, which further subdivides the heat load grades and can better meet the diverse needs of users.

[0035] Further, the inner wall of the air inlet channel 110 is provided with a connecting hole 120, the middle part of the connecting hole 120 is in communication with the air inlet channel 110, and the two ends of the connecting hole 120 respectively penetrate the inner walls of the first connecting cavity 211 and the second connecting cavity 221, so that the air inlet channel 110, the first connecting cavity 211 and the second connecting cavity 221 are communicated through one connecting hole 120, which simplifies the gas path structure, and the connecting hole 120 can be directly drilled or formed by an insert, and at the same time, the connecting hole 120 is arranged on the inner wall of the air inlet channel 110, without the need for additional pipeline structure, which can reduce the complexity of the forming mold and the difficulty of later processing.

[0036] Further, the surface of the air outlet rod 20 is provided with a first opening, the first opening penetrates the inner wall of the first connecting cavity 211, and the first opening is coaxially arranged with the connecting hole 120, and the first opening is fixed with a first plug 261, and the first plug 261 seals the first opening. Since the first opening is coaxially arranged with the connecting hole 120, the insert for forming the connecting hole 120 can be pulled out from the first opening, or drilling can be performed from the first opening to drill the connecting hole 120, which can further reduce the complexity of the forming mold and the difficulty of later processing. After the connecting hole 120 is formed, the first plug 261 seals the first opening, so that the gas does not leak from the first opening.

[0037] In some embodiments, the surface of the main rod 200 is integrally formed with a convex strip 250, the two ends of the convex strip 250 are respectively connected with the first mounting seat 210 and the second mounting seat 220, and at least part of the connecting hole 120 is located inside the convex strip 250. Since the connecting hole 120 is located on the inner wall of the air inlet channel 110, the wall thickness of the main rod 200 is insufficient to form a connecting hole 120 with a corresponding hole diameter, and the presence of the convex strip 250 increases the local wall thickness of the main rod 200, so that the connecting hole 120 inside the main rod 200 can meet the ventilation requirements.

[0038] In some embodiments, the air inlet channel 110 extends to the inside of the main rod 200, the first air outlet hole 201 penetrates the inner wall of the air inlet channel 110, and the gas in the air inlet channel 110 is directly sprayed out through the first air outlet hole 201, which is equivalent to that the air inlet channel 110 and the original gas distribution cavity are combined into one, and there is no need to design a gas distribution cavity connected with the air inlet channel 110, which further improves the rationality, and the air inlet channel 110 and the gas distribution cavity can be formed at one time, which can further reduce the complexity of the forming mold and the difficulty of later processing.

[0039] Further, the main rod 200 comprises a spacer block 240 inside the main rod 200, the spacer block 240 separates the gas distribution cavity 230 and the first connecting cavity 211, so that the gas distribution cavity 230 and the first connecting cavity 211 are not communicated. Compared with the traditional gas distribution rod assembly, the plug cover does not need to be arranged between the gas inlet channel 110 and the first connecting cavity 211, the use of the plug cover can be reduced, and the risk of gas leakage can be reduced. The gas inlet channel 110 extends to the spacer block 240, the distance from the gas inlet channel 110 to the first connecting cavity 211 and the second connecting cavity 221 is closer, the length of the connecting hole 120 can be shortened, and the overall structure is compact.

[0040] At least a part of the connecting hole 120 of the above-mentioned embodiment can also be arranged on the spacer block 240.

[0041] Further, the end of the gas distribution cavity 230 away from the spacer block 240 forms a second opening penetrating to the surface of the main rod 200, and a second plug cover 262 is fixed at the second opening, and the second plug cover 262 seals the second opening. The insert for forming the gas distribution cavity 230 can be pulled out from the second opening, or the gas distribution cavity 230 can be drilled from the second opening. This structure can further reduce the complexity of the forming mold and the difficulty of later processing. After the gas distribution cavity 230 is formed, the second plug cover 262 seals the second opening, so that the gas does not leak from the second opening.

[0042] In some embodiments, as shown in Figures 1-4 The extending direction of the gas inlet channel 110 is parallel to the length direction of the gas inlet rod 100, the side wall of the gas inlet rod 100 is provided with a gas inlet 101 communicated with the gas inlet channel 110, and the gas enters the gas inlet channel 110 through the gas inlet 101. The end of the gas inlet channel 110 away from the gas outlet rod 20 forms a third opening penetrating to the surface of the gas inlet rod 100, and a third plug cover 263 is fixed at the third opening, and the third plug cover 263 seals the third opening.

[0043] The insert for forming the gas inlet channel 110 can be pulled out from the third opening, or the gas inlet channel 110 can be drilled from the third opening. This structure can further reduce the complexity of the forming mold and the difficulty of later processing. After the gas inlet channel 110 is formed, the third plug cover 263 seals the third opening, so that the gas does not leak from the third opening.

[0044] In some embodiments, as shown in Figure 3 and Figure 4As shown, the inner wall of the first connecting cavity 211 is provided with a convex ring 204 around the first gas outlet hole 202, and the first control valve 310 is used to abut against the convex ring 204 to block the first gas outlet hole 202, or the first control valve 310 is used to move away from the convex ring 204 to open the first gas outlet hole 202. Since the nozzle needs to be fixed in the first gas outlet hole 202, the first control valve 310 abuts against the convex ring 204, which can avoid damaging the nozzle, and after the convex ring 204 abuts against the first control valve 310, the sealing performance is better, which guarantees the blocking effect of the second gas outlet hole 202 and avoids gas leakage.

[0045] In some embodiments, as shown in Figures 1-4 As shown, the main rod 200 and the air inlet rod 100 are vertically connected, and correspondingly, the extension direction of the air inlet channel 110 can be vertically arranged with the length direction of the air inlet rod 100.

[0046] In some embodiments, as shown in Figures 1-4 As shown, the axial direction of the connecting hole 120 is parallel to the length direction of the main rod 200, and the first opening can be formed at one end of the length direction of the main rod 200.

[0047] In some embodiments, as shown in Figures 1-5 As shown, the first control valve 310 and the second control valve 320 are both piston type electromagnetic valves, the opening and closing directions of the first control valve 310 and the second control valve 320 are parallel, the opening and closing direction of the second control valve 320 is perpendicular to the length direction of the main rod 200, and correspondingly, the opening and closing direction of the first control valve 310 is also perpendicular to the length direction of the main rod 200. At the same time, the opening and closing direction of the second control valve 320 forms a preset included angle c with the length direction of the air inlet rod 100, compared with the existing gas distribution rod assembly, the opening and closing direction of the control valve 320 is not parallel to the length direction of the air inlet rod 100, and the first control valve 310 and the second control valve 320 can not be blocked by the air inlet rod 100, so that the spacing between the first control valve 310 and the second control valve 320 is smaller, the length of the connecting hole 120 is smaller, and the overall structure is more compact.

[0048] In this embodiment, the preset included angle c can be 30°-90°, preferably, the preset included angle c can be 45°.

[0049] In the above embodiments, the first gas outlet hole 201, the second gas outlet hole 202 and the third gas outlet hole 203 can all be fixed with a nozzle, and the nozzle is used to spray gas outward.

[0050] The terms and words used in the above description and claims are not limited to the bibliographical meanings, but are merely used to enable a clear and complete understanding of the present application by those skilled in the art. Accordingly, it should be apparent to those skilled in the art that the above description of various embodiments of the present application is provided only to explain the present application and it would not be construed as limiting the present application as defined by the appended claims and their equivalents.

Claims

1. A gas distribution rod assembly, characterized by: The air inlet rod, the air outlet rod and the first control valve are included; the air outlet rod includes a main rod and a first mounting seat arranged on the surface of the main rod, and the air inlet rod, the main rod and the first mounting seat are integrally formed; the air inlet rod is provided with an air inlet channel, and the surface of the main rod is provided with a first air outlet hole in communication with the air inlet channel; the first control valve is mounted on the first mounting seat, the first mounting seat is provided with a first connecting cavity extending into the main rod, the surface of the main rod is provided with a second air outlet hole penetrating into the inner wall of the first connecting cavity, the air inlet channel is in communication with the first connecting cavity, and the first control valve is used for blocking the second air outlet hole or opening the second air outlet hole.

2. The air distribution rod assembly of claim 1, wherein: The second control valve is further included, the air outlet rod further includes a second mounting seat arranged on the surface of the main rod; the main rod and the second mounting seat are integrally formed; the second control valve is mounted on the second mounting seat, the second mounting seat is provided with a second connecting cavity, the main rod is provided with a gas distribution cavity in communication with the second connecting cavity, the surface of the main rod is provided with a third air outlet hole in communication with the gas distribution cavity, the air inlet channel is in communication with the second connecting cavity, and the second control valve is used for controlling the second connecting cavity and the gas distribution cavity to be in communication or disconnected.

3. The air distribution rod assembly of claim 2, wherein: The inner wall of the air inlet channel is provided with a connecting hole, the middle part of the connecting hole is in communication with the air inlet channel, and the two ends of the connecting hole penetrate into the inner walls of the first connecting cavity and the second connecting cavity respectively.

4. The air distribution rod assembly of claim 3, wherein: The surface of the air outlet rod is provided with a first opening penetrating into the inner wall of the first connecting cavity, the first opening is coaxially arranged with the connecting hole, a first plug is fixed at the first opening, and the first plug seals the first opening.

5. The air distribution rod assembly of claim 3, wherein: The surface of the main rod is integrally formed with a convex strip, the two ends of the convex strip are connected with the first mounting seat and the second mounting seat respectively, and at least part of the connecting hole is located in the interior of the convex strip.

6. The gas distribution rod assembly of any of claims 1-5, wherein: The air inlet channel extends to the interior of the main rod, and the first air outlet hole penetrates into the inner wall of the air inlet channel.

7. The air distribution rod assembly of claim 6, wherein: The main rod includes a spacing block located in the interior of the main rod, the spacing block separates the gas distribution cavity and the first connecting cavity, and the air inlet channel extends to the spacing block.

8. The air distribution rod assembly of claim 7, wherein: The end of the gas distribution cavity away from the spacing block forms a second opening penetrating into the surface of the main rod, a second plug is fixed at the second opening, and the second plug seals the second opening.

9. The gas distribution rod assembly of any of claims 1-5, wherein: The extension direction of the air inlet channel is parallel to the length direction of the air inlet rod, the side wall of the air inlet rod is provided with an air inlet port in communication with the air inlet channel, the end of the air inlet channel away from the air outlet rod forms a third opening penetrating into the surface of the air inlet rod, a third plug is fixed at the third opening, and the third plug seals the third opening.

10. The gas distribution rod assembly of any of claims 1-5, wherein: The inner wall of the first connecting cavity is provided with a convex ring around the first air outlet hole, and the first control valve is used for abutting against the convex ring to block the first air outlet hole or moving away from the convex ring to open the first air outlet hole.

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