Section valve and burner comprising same

Abstract

The utility model provides a section position valve and a combustor comprising the same, the section position valve comprises a valve body and a closer arranged in the valve body, the valve body is provided with an air supply channel, and the air supply channel is communicated with an inner ring channel of the section position valve from a valve cavity of the valve body; an air supplementing groove is formed in the position, corresponding to the air supplementing channel, of the closer, a plurality of air holes are formed in the air supplementing groove and communicate with an air supply channel of the closer, and the inner ring channel communicates with the air supply channel all the time through the air supplementing groove. By arranging the gas supplementing groove and arranging the gas supplementing groove to be continuously communicated with the gas supplementing channel, the section position valve is replaced into different combustors, gas is supplemented to the inner ring channel through the gas supplementing groove and the gas supplementing channel, and therefore the section position valve can be replaced into the different combustors without the influence of the size of a nozzle, and the fire transferring stability is always kept. And the universality of the section valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sectional valves, in particular to a sectional valve and a burner comprising the sectional valve. Background Art

[0002] The section valve in the burner is used to adjust the fire power of the fire holes on the inner and outer rings of the burner. It is widely used because of its high accuracy in regulating the gas flow.

[0003] The existing segment valve is provided with a shutter, and a plurality of air holes of different diameters are provided on the shutter, so that when the shutter rotates, the air holes of different diameters are connected with the gas channel, thereby accurately adjusting the gas flow rate when delivering gas to the inner and outer rings. However, when the segment valve is set in other burners, because the nozzle settings of other burners are different from the nozzle settings of the original burner, this makes it possible for the segment valve to fail to transfer fire when the shutter is used to connect the inner and outer ring gases and transfer fire. Specifically, after the nozzle size changes, the amount of gas flowing into the inner ring channel or the outer ring channel from the shutter on the original segment valve is insufficient, which makes the segment valve have the problem of poor versatility when used in different burners. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defect of poor universality of the shutter of the sectional valve in the prior art when used on different burners, and to provide a sectional valve and a burner comprising the same.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A sectional valve, comprising a valve body and a stopper arranged in the valve body, wherein the valve body is provided with an air supply channel, and the air supply channel is connected from a valve cavity of the valve body to an inner ring channel of the sectional valve;

[0007] The closure is provided with an air replenishing groove corresponding to the air replenishing channel, a plurality of air holes are provided in the air replenishing groove and the air holes are connected to the air supply channel of the closure, and the inner ring channel is always connected with the air supply channel through the air replenishing groove.

[0008] In this solution, by setting up a gas-supplementing groove and setting the gas-supplementing groove to be continuously connected with the gas-supplementing channel, when the segment valve is replaced in a different burner, the gas-supplementing groove and the gas-supplementing channel are used to supplement the inner ring channel with gas, so that the segment valve can be replaced in different burners regardless of the influence of the nozzle size and always maintain the stability of the flame transmission. Compared with replacing the closure to change the aperture connected to the inner ring channel to adapt to different types of burners, the segment valve does not need to replace the closure and can be used for a variety of burners, reducing redundant product models and manufacturing costs, thereby improving the versatility of the segment valve.

[0009] Preferably, the air supply groove extends in a horizontal direction, and the air supply groove is arranged in a ring on the closure.

[0010] In the present scheme, a continuous air supply groove is obtained by setting the air supply groove ring on the closure and setting it horizontally. Compared with the air supply groove set at an angle, it occupies less space on the closure and the sealing grease is not easy to enter and block the air supply groove. Even when the sealing grease blocks part of the air supply groove, the gas can flow into the air supply channel in time without being affected by the blockage.

[0011] Preferably, the closure is provided with an inner ring air inlet hole and an outer ring air inlet hole in sequence along the height direction, the outer ring air inlet hole is located at a height higher than the inner ring air inlet hole, and the air replenishing groove is located at a height higher than the outer ring air inlet hole.

[0012] In this solution, by setting the height of the air supply groove higher than the outer ring air inlet hole and the inner ring air inlet hole, compared to setting the air supply groove between the outer ring air inlet hole and the inner ring air inlet hole, the space on the closure can be fully utilized and there will be no interference between the air supply groove and the larger outer ring air inlet hole and the inner ring air inlet hole.

[0013] Preferably, the air supplement channel is provided with a flow regulating component, one end of the flow regulating component extends into the air supplement channel and performs reciprocating motion along the extending direction.

[0014] In this solution, a flow regulating component is provided to ensure the stability of fire transmission and prevent abnormal firepower when the stage valve is replaced with different types of burners. The gas supply channel is closed in time when there is no need to replenish gas in the inner ring channel to avoid burner explosion when the user's firepower demand is low.

[0015] Preferably, the air supply channel is an adjusting nail channel, the flow regulating component is an adjusting nail, a threaded hole is provided on the air supply channel, and the adjusting nail is screwed to the threaded hole.

[0016] In this solution, the above-mentioned settings are used to achieve precise regulation of the supplementary gas in the inner ring channel.

[0017] Preferably, the air supplement channel is located above the inner ring channel, the adjusting pin is arranged along the vertical direction, and one end of the adjusting pin away from the air supplement channel is located at the top of the valve body.

[0018] In this solution, the air supply channel is arranged at the top of the valve body so that the user can easily screw the adjustment pin.

[0019] Preferably, a groove is provided on the outer peripheral side of the adjusting pin, the groove is provided close to an end of the adjusting pin away from the air supply channel, and a sealing member is provided in the groove.

[0020] In this solution, a sealing member is provided to seal the outer peripheral side of the adjusting pin, thereby preventing gas from leaking from the adjusting pin when replenishing gas, thereby ensuring the safety of the stage valve.

[0021] Preferably, the size of the connection point between the air supplement channel and the inner ring channel is smaller than the size of the adjusting pin.

[0022] In this solution, the above arrangement is used to further improve the sealing performance of the regulating pin when closing the air supply channel.

[0023] Preferably, the air-supplementing channel is arranged obliquely, and the height of the end of the air-supplementing channel away from the closure is higher than the connecting point between the air-supplementing channel and the air-supplementing groove.

[0024] In this solution, the air supply channel is tilted to reduce the situation where the sealing grease blocks the air supply channel, thereby preventing the air supply channel from being blocked.

[0025] A burner comprises the above-mentioned stage valve.

[0026] In this solution, the burner includes the above-mentioned section valve. The section valve is provided with an air supply groove on the closure and an air supply channel on the valve body to always replenish the inner ring channel with fuel gas, thereby ignoring the size of the burner nozzle to ensure the stability and success rate of flame transmission, improve the versatility of the section valve, reduce the manufacture of redundant parts, and reduce manufacturing costs.

[0027] The positive and progressive effect of the utility model is that the utility model sets a gas-supplementing groove and sets the gas-supplementing groove to be continuously connected with the gas-supplementing channel, so that when the segment valve is replaced in a different burner, the gas-supplementing groove and the gas-supplementing channel are used to supplement the inner ring channel with gas, so that the segment valve can be replaced in different burners regardless of the influence of the nozzle size and always maintain the stability of the flame transmission. Compared with the method of replacing the closure to change the aperture connected to the inner ring channel to adapt to different types of burners, the segment valve does not need to replace the closure, and can be used for a variety of burners, reducing redundant product models and reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional diagram of a segment valve according to a preferred embodiment of the utility model.

[0029] Figure 2 This is a positional relationship diagram of the air supplement channel and the inner ring channel of a preferred embodiment of the utility model.

[0030] Figure 3 This is a diagram showing the position relationship between the adjustment pin and the air supply channel in a preferred embodiment of the utility model.

[0031] Figure 4 It is a three-dimensional diagram of a closure of a preferred embodiment of the utility model.

[0032] Description of reference numerals:

[0033] Valve body 1

[0034] Air supply channel 11

[0035] Inner Ring Channel 12

[0036] Inner ring air inlet 121

[0037] Outer ring air inlet 122

[0038] closed child 2

[0039] Air supply tank 21

[0040] Air hole 211

[0041] Flow regulation component 3

[0042] Seal 4 DETAILED DESCRIPTION

[0043] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0044] This embodiment provides a stage valve, the specific structure is as follows Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the sectional valve comprises a valve body 1 and a stopper 2 arranged in the valve body 1, and an air supply channel 11 is arranged on the valve body 1, and the air supply channel 11 is connected from the valve cavity of the valve body 1 to the inner ring channel 12 of the sectional valve;

[0045] The closure 2 is provided with an air replenishing groove 21 corresponding to the air replenishing channel 11 . A plurality of air holes 211 are provided in the air replenishing groove 21 and the air holes 211 are connected to the air supply channel of the closure 2 . The inner ring channel 12 is always connected to the air supply channel through the air replenishing groove 21 .

[0046] Specifically, a conical valve cavity is provided on the valve body 1, and an inner ring channel 12 and an outer ring channel are also provided on the valve body 1, and the inner ring channel 12 and the outer ring channel are both connected to the valve cavity, and a closure 2 is rotatably connected in the valve cavity, and the closure 2 is also a conical structure, and the outer peripheral side of the closure 2 is respectively provided with an inner ring air inlet hole 121 and an outer ring air inlet hole 122 corresponding to the inner ring channel 12 and the outer ring channel, and when the closure 2 rotates at a certain angle, the inner ring air inlet hole 121 and the outer ring air inlet hole 122 are respectively connected to the corresponding inner ring channel 12 and the outer ring channel. For example, when the stage valve is connected to the inner ring channel 12 and the outer ring channel at the same time, the firepower of the inner ring channel 12 and the outer ring channel is low fire, and for different burners, the size of the nozzle is also different. When the nozzle size is small, the amount of gas entering the inner ring channel 12 is insufficient, which will result in the inability to transmit the firepower to the outer ring, thereby causing the failure of the fire transmission. On this basis, an additional air supply channel 11 is provided on the valve body 1, and an air supply groove 21 is provided on the closure 2. The air supply groove 21 is a rectangular groove and is connected to the air supply channel provided at the axis of the closure 2, and the air supply groove 21 is always connected to the air supply channel 11, so that when the section valve is replaced with a different burner, the air supply groove 21 and the air supply channel 11 can be used to supplement the inner ring channel 12 with gas, so that when the section valve is replaced with a different burner, the influence of the nozzle size can be ignored and the stability of the flame transmission can be always maintained.

[0047] In the present embodiment, by providing the air supply channel 11 and the air supply groove 21 for continuous air supply, compared with the traditional method, when replacing the closure with the inner ring air inlet hole 121 with different apertures, there is no need to additionally manufacture the closure with the inner ring air inlet hole 121 with different apertures, so as to reduce the manufacturing cost and reduce the redundant product models. Moreover, when the section valve is replaced to a different burner, there is no need to additionally replace the closure 2, which reduces the versatility of the replacement, and makes the section valve more applicable and more versatile.

[0048] In this embodiment, the air supply groove 21 extends in the horizontal direction, and the air supply groove 21 is arranged on the closing member 2 in a ring.

[0049] Specifically, the air supply groove 21 extends from the outer surface of the closure 2 in the horizontal direction toward the axis of the closure 2. The air supply groove 21 is an annular groove or a fan-shaped groove, so that when connected with the air supply channel 11, it is not affected by the rotation angle of the closure 2 and is always connected to the air supply channel 11. When part of the air holes 211 are affected by the sealing grease filled between the closure 2 and the valve cavity, the annular groove can also flow into the air supply channel 11 through the other end of the annular groove when there are multiple air holes 211 and the remaining air holes 211 are not blocked. Compared with the air supply groove 21 that is tilted downward from the outer surface of the closure 2 toward the axis of the closure 2, the air supply groove 21 set in the horizontal direction occupies less space on the closure 2 and the sealing grease is not easy to enter and block the air supply groove 21. Even when the sealing grease blocks part of the air supply groove 21, the gas can flow into the air supply channel 11 in time and is not affected by the blockage.

[0050] Of course, in other embodiments, the air-supplying groove 21 can also be arranged to be inclined upward from the outer surface of the closing member 2 toward the axis of the closing member 2 to further enhance the anti-blocking effect of the air-supplying groove 21. This is the prior art and will not be elaborated on here.

[0051] In another embodiment, an annular hole may be further provided on the closure 2 to replace the air supply groove 21, or a plurality of air holes 211 may be directly provided, and the plurality of air holes 211 may be arranged close to each other so that the air supply channel 11 can be connected to two or more air holes 211 at the same time to keep the air supply channel 11 always connected, which can also achieve the purpose of improving the versatility of the stage valve, and will not be elaborated herein.

[0052] In this embodiment, an inner ring air inlet hole 121 and an outer ring air inlet hole 122 are sequentially opened on the closure 2 along the height direction. The height of the outer ring air inlet hole 122 is higher than that of the inner ring air inlet hole 121 , and the height of the air replenishing groove 21 is higher than that of the outer ring air inlet hole 122 .

[0053] Specifically, the height of the inner ring air inlet hole 121 of the closure 2 is lower than the outer ring air inlet hole 122, and the height of the outer ring air inlet hole 122 is lower than the air supplement groove 21. By setting the height of the air supplement groove 21 higher than the outer ring air inlet hole 122 and the inner ring air inlet hole 121, compared with setting the air supplement groove 21 between the outer ring air inlet hole 122 and the inner ring air inlet hole 121, the space on the closure 2 can be fully utilized and there will be no interference between the air supplement groove 21 and the larger outer ring air inlet hole 122 and the inner ring air inlet hole 121. In addition, the improvement of the structure of the closure 2 can be reduced, so that the existing closure 2 can achieve an improvement in versatility on the basis of adding the air supplement groove 21, without the need to re-process and manufacture a new model of the closure 2, thereby reducing the difficulty of transformation.

[0054] In this embodiment, the air supply channel 11 is provided with a flow regulating component 3, and one end of the flow regulating component 3 extends into the air supply channel 11 and reciprocates along the extending direction.

[0055] Specifically, the flow regulating component 3 is located on the side of the air supply channel 11 away from the inner ring channel 12, and the flow regulating component 3 reciprocates so that the position of the end of the flow regulating component 3 extending into the air supply channel 11 can change in the air supply channel 11. When the extending distance is large, the gas flow in the air supply channel 11 is reduced or even the air supply channel 11 can be closed, so that when the nozzle size after the stage valve is replaced is small or no difference from the original nozzle size, the flow of the air supply channel 11 is timely adjusted to reduce the gas entering the inner ring channel 12 and affecting the normal firepower of the inner ring fire hole. Similarly, when the extending distance of the flow regulating component 3 into the air supply channel 11 is reduced, the gas flow increases to continuously supplement the gas to the inner ring channel 12, meet the fire transmission demand, and improve the stability and success rate of the fire transmission. The flow regulating component 3 can select a structure that performs reciprocating motion in the prior art, such as a hydraulic cylinder or a component that drives the slider to perform reciprocating motion. This is the prior art and will not be described in detail here.

[0056] In this embodiment, the air supply channel 11 is an adjusting nail channel, the flow regulating component 3 is an adjusting nail, a threaded hole is provided on the air supply channel 11, and the adjusting nail is screwed to the threaded hole.

[0057] Specifically, the regulating nail channel extends from the inside of the valve body 1, and the regulating nail channel is connected to the inner ring channel 12 through a circular hole. An regulating nail is provided at the corresponding circular hole, and the circular hole is opened or closed by screwing the regulating nail to adjust the gas flow of the gas supply channel 11. At the same time, the gas flow supplemented to the inner ring channel 12 is adjusted by the regulating nail, so that the accuracy of the supplemented gas flow is further improved, and the influence on the fire power of the inner ring fire hole is greatly reduced.

[0058] In this embodiment, the air supply channel 11 is located above the inner ring channel 12 , the adjusting pin is arranged along the vertical direction, and the end of the adjusting pin away from the air supply channel 11 is located at the top of the valve body 1 .

[0059] Specifically, the air supply channel 11 is located above the inner ring channel 12 along the height direction of the valve body 1, and the air supply channel 11 is arranged close to the top of the valve body 1, while the adjusting pin is arranged in the vertical direction, and one end of the adjusting pin extends into the air supply channel 11, and the other end is away from the air supply channel 11 and located at the top of the valve body 1. By arranging the air supply channel 11 at the top of the valve body 1 and arranging the adjusting pin in the vertical direction and at the top of the valve body 1, it is convenient for the user to screw the adjusting pin. This avoids the situation where the adjusting pin is located at the side or bottom of the valve body 1, which causes difficulty in screwing and inconvenience in use.

[0060] In this embodiment, a groove is provided on the outer peripheral side of the adjusting pin, the groove is provided close to the end of the adjusting pin away from the air supply channel 11, and a sealing member 4 is provided in the groove.

[0061] Specifically, the adjusting pin is a screw structure, the end of the adjusting pin away from the gas supply channel 11 is a head for connecting a screwing tool, the end of the adjusting pin extending into the gas supply channel 11 is a rod, the outer peripheral side of the rod is provided with an external thread, the valve body 1 is provided with a receiving hole corresponding to the adjusting pin, the receiving hole is provided with an internal thread, and the receiving hole is communicated with the gas supply channel 11, so that the adjusting pin can extend into the gas supply channel 11 when it is screwed into the receiving hole. In addition, the outer peripheral side of the rod is also provided with a groove formed by a boss, the groove is arranged around the rod and a seal 4 is sleeved in the groove, and the seal 4 is a sealing ring in the prior art, for example, a sealing ring made of rubber material. When the adjusting pin is placed in the receiving hole, the seal 4 is provided to seal the gap between the adjusting pin and the inner wall of the receiving hole, so as to avoid leakage of gas from the adjusting pin when supplementing gas, thereby ensuring the safety of the use of the stage valve.

[0062] In this embodiment, the size of the connection point between the air supplement channel 11 and the inner ring channel 12 is smaller than the size of the adjustment pin.

[0063] Specifically, the gas supply channel 11, that is, the connecting point between the regulating nail channel and the inner ring channel 12, is a circular hole, and the size of the circular hole is smaller than the size of the end of the regulating nail. It can be understood that when the size of the circular hole is larger than the size of the end of the regulating nail, the regulating nail cannot close the gas supply channel 11, so that there will still be gas entering the inner ring channel 12 without replenishing gas to the inner ring channel 12, causing firepower to affect and cause deflagration. When the size of the circular hole is equal to the size of the end of the regulating nail, due to the gap between the structures, part of the gas will still enter the inner ring channel 12 from the gap, that is, the gas supply channel 11 cannot be completely closed. In this embodiment, the size of the circular hole is set to be smaller than the size of the end of the regulating nail, which can effectively avoid the problem of gas entering the inner ring channel 12 when the gas supply channel 11 is closed, so as to further improve the sealing of the regulating nail when closing the gas supply channel 11.

[0064] In this embodiment, the air-supply channel 11 is arranged obliquely, and the end of the air-supply channel 11 away from the shutter 2 is higher than the connecting point between the air-supply channel 11 and the air-supply groove 21 .

[0065] Specifically, the air supply channel 11, that is, the adjusting nail channel, is a cylindrical channel, one end of which is used to communicate with the air supply groove 21 and is lower in height than the other end. This allows the gas entering the air supply channel 11 through the air supply groove 21 to move in an inclined upward direction, so as to prevent the sealing grease from further entering the air supply channel 11 when the valve cavity is filled with sealing grease, thereby preventing the air supply channel 11 from being blocked.

[0066] This embodiment also provides a burner, which includes the above-mentioned stage valve.

[0067] Specifically, the burner is provided with a nozzle, which corresponds to the section valve and is connected with the inner ring channel 12 and the outer ring channel. The section valve is provided with a closure 2, and the closure 2 is provided with an air supply groove 21. The valve body 1 of the section valve is provided with an air supply channel 11, which is always connected with the air supply channel 11 through the air supply groove 21 to continuously replenish gas into the inner ring channel 12, and is not affected by the sealing grease, to prevent the gas supply groove 21 from being blocked and unable to replenish gas to the inner ring channel 12, resulting in insufficient gas in the inner ring channel 12 and unable to transmit fire to the outer ring fire hole, so as to improve the versatility of the section valve, can be replaced with different burners, reduce redundant section valve models or closure 2 models, reduce the manufacture of redundant parts, and reduce manufacturing costs.

[0068] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A sectional valve, comprising a valve body and a stopper arranged in the valve body, characterized in that: The valve body is provided with an air supply channel, and the air supply channel is connected from the valve cavity of the valve body to the inner ring channel of the section valve; The closure is provided with an air replenishing groove corresponding to the air replenishing channel, a plurality of air holes are provided in the air replenishing groove and the air holes are connected to the air supply channel of the closure, and the inner ring channel is always connected with the air supply channel through the air replenishing groove.

2. The sectional valve according to claim 1, characterized in that: The air supply groove extends in a horizontal direction and is arranged on the closure.

3. The sectional valve according to claim 1, characterized in that: An inner ring air inlet hole and an outer ring air inlet hole are sequentially opened on the closure along the height direction. The height of the outer ring air inlet hole is higher than that of the inner ring air inlet hole, and the height of the air replenishing groove is higher than that of the outer ring air inlet hole.

4. The sectional valve according to claim 1, characterized in that: The air supplement channel is provided with a flow regulating component, one end of the flow regulating component extends into the air supplement channel and performs reciprocating motion along the extending direction.

5. The sectional valve according to claim 4, characterized in that: The air supply channel is an adjusting nail channel, the flow regulating component is an adjusting nail, a threaded hole is provided on the air supply channel, and the adjusting nail is screwed to the threaded hole.

6. The sectional valve according to claim 5, characterized in that: The air supplement channel is located above the inner ring channel, the adjusting pin is arranged along the vertical direction, and one end of the adjusting pin away from the air supplement channel is located at the top of the valve body.

7. The sectional valve according to claim 5, characterized in that: A groove is arranged on the outer peripheral side of the adjusting pin, the groove is arranged close to an end of the adjusting pin away from the air supply channel, and a sealing member is arranged in the groove.

8. The sectional valve according to claim 5, characterized in that: The size of the connection point between the air supplement channel and the inner ring channel is smaller than the size of the adjusting pin.

9. The sectional valve according to claim 1, characterized in that: The air-supplementing channel is arranged obliquely, and the height of the end of the air-supplementing channel away from the closure is higher than the connecting point between the air-supplementing channel and the air-supplementing groove.

10. A burner, characterized in that: The burner comprises a stage valve according to any one of claims 1-9.

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