Ejector and upper air inlet burner
By controlling the number of bends of the induction tube body and increasing the shrinkage section, the problem of poor gas and fuel flow is solved, and the induction capacity and combustion effect of the induction tube is significantly improved, ensuring a safe combustion process.
Patent Information
- Application Number
- CN202411384843.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2024-12-24
AI Technical Summary
The large number of bends on the injector leads to poor flow of gas and fuel, weak inducing ability, leading to the risk of insufficient combustion.
By controlling the bend of the pipe body within two points, the contraction section is added to compress the gas fuel, so that it can be sprayed smoothly at the distal end of the induction nozzle, enhancing the induction ability.
It significantly improves the smoothness and induction ability of the gas fuel in the inducer, ensures the smooth delivery of gas fuel, enhances the combustion effect, and reduces the risk of insufficient combustion.
Smart Images
Figure CN119178151A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of burners, and in particular to an ejector and an upper air inlet burner. Background Art
[0002] A gas stove is a kitchen appliance that uses gas fuel for direct fire heating.
[0003] The gas cooker is provided with an ejector, which is used to eject gas fuel for combustion.
[0004] However, the tube body on the ejector has many bends, which makes the gas fuel in the ejector flow poorly, thereby resulting in a weak ejection capacity of the ejector. Summary of the invention
[0005] The present invention provides an ejector and an upper air inlet burner to enhance the ejection capability of the ejector.
[0006] In a first aspect, the present disclosure provides an ejector, which may include: a tube body, a connecting portion and an ejection nozzle, the tube body having a first opening and a second opening, the tube body between the first opening and the second opening being provided with at most two bends, so that the first opening and the second opening have a height difference; the connecting portion is connected to the first opening, and has a first channel connected to the first opening, and the connecting portion is provided with a connecting space; the ejection nozzle is connected to the second opening, and has a second channel connected to the second opening, the second channel including: a contraction section, the contraction section is adjacent to an end of the second channel away from the second opening, and contracts in a direction away from the second opening, and the angle between the first central axis of the contraction section and the inner wall forming the contraction section is less than 60 degrees.
[0007] In some embodiments, multiple sections of the contraction segment are coaxial and connected in sequence, and the angle between the first central axis of each section of the contraction segment and the inner wall forming the contraction segment is in the range of 20-40 degrees. The contraction segment shows a gradual contraction trend and the inner walls relative to each other forming the contraction segment are symmetrical about the first central axis.
[0008] In some embodiments, the second channel further includes: an expansion section, which is connected to an end of the contraction section away from the second opening and expands in a direction away from the second opening, and an angle between a second central axis of the expansion section and an inner wall forming the expansion section is greater than 60 degrees.
[0009] In some embodiments, the tube body includes a first section of the tube body, a second section of the tube body and a third section of the tube body which are vertically connected in sequence, the opening of the first section of the tube body away from one end of the second section of the tube body is the first opening, the opening of the third section of the tube body away from one end of the second section of the tube body is the second opening, and the connection between two adjacent sections of the tube body forms the turning point; wherein the first section of the tube body, the second section of the tube body, the third section of the tube body and the connecting portion are integrally formed.
[0010] In some embodiments, the tube body includes a fourth section of the tube body and a fifth section of the tube body vertically connected to the opening at one end of the fourth section of the tube body, the opening of the fourth section of the tube body away from the end of the fifth section of the tube body is the first opening, the opening of the fifth section of the tube body away from the end of the fourth section of the tube body is the second opening, and the connection between the fourth section of the tube body and the fifth section of the tube body forms the turning point; wherein the fourth section of the tube body, the fifth section of the tube body and the connecting portion are integrally formed.
[0011] In some embodiments, the number of the tube bodies is two, namely the first tube body and the second tube body; the first tube body includes a first section of the tube body, a second section of the tube body and a third section of the tube body which are vertically connected in sequence, the opening of the first section of the tube body away from one end of the second section of the tube body is the first opening, the opening of the third section of the tube body away from one end of the second section of the tube body is the second opening, and the connection between the two adjacent sections of the tube body forms the turning point; the second tube body includes a fourth section of the tube body and a fifth section of the tube body vertically connected to the opening at one end of the fourth section of the tube body, the opening of the fourth section of the tube body away from one end of the fifth section of the tube body is the first opening, the opening of the fifth section of the tube body away from one end of the fourth section of the tube body is the second opening, and the connection between the fourth section of the tube body and the fifth section of the tube body forms the turning point; wherein, the first tube body and the second tube body are connected by a connecting piece.
[0012] In some embodiments, the connecting member has a first surface, the first section of the tube is offset from the connecting member and parallel to the plane where the first surface is located, the third section of the tube is connected to the first surface, a portion of the fourth section of the tube is offset from the connecting member and is opposite to and parallel to the first section of the tube, a portion of the fourth section of the tube is opposite to and parallel to the first surface, and the fifth section of the tube extends toward the first surface.
[0013] In some embodiments, a first vibrating member is connected to an inner wall of the tube body near the second opening, and when the gas fuel entering from the first opening flows through the first vibrating member, the first vibrating member vibrates.
[0014] In a second aspect, the present disclosure provides an upward air inlet burner, which may include: the ejector and burner described in any embodiment of the first aspect, the burner is provided with a gas mixing chamber and an inlet and an outlet connected to the gas mixing chamber, and the inlet is opposite to an end opening of the second channel away from the second opening.
[0015] In some embodiments, the burner has an inner ring mixing chamber and an outer ring mixing chamber arranged around the inner ring mixing chamber, the inlet of the inner ring mixing chamber is opposite to the opening of one end of the second channel of one ejector away from the second opening, and the inlet of the outer ring mixing chamber is opposite to the opening of one end of the second channel of another ejector away from the second opening.
[0016] Through the above technical scheme, the ejector and the upper air inlet burner provided by the present invention can greatly improve the smoothness of the flow of gas fuel (such as natural gas) in the ejector by controlling the turning point to be within two (including two), thereby enhancing the ejection capacity of the ejector; on this basis, a contraction section can be set at the outlet end of the ejector, and the inner diameter of the contraction section becomes smaller and smaller as the gas fuel flows, so that the gas fuel is compressed at the contraction section and then ejected from the opening at one end of the ejector nozzle away from the tube body. In this way, the gas fuel is subjected to the contraction pressure of the contraction section before being sent out from the ejector so as to be sent out more smoothly, thereby further enhancing the ejection capacity of the ejector.
[0017] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present disclosure in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 A schematic diagram of the structure of the ejector (first angle) provided by the present invention;
[0020] Figure 2 A schematic diagram of the structure of the ejector (second angle) provided by the present invention;
[0021] Figure 3 A schematic structural diagram of the ejector (third angle) provided by the present invention;
[0022] Figure 4 A schematic diagram of the structure of the ejector (fourth angle) provided by the present invention;
[0023] Figure 5 A partial perspective structural schematic diagram of the ejector nozzle of the ejector provided by the present invention;
[0024] Figure 6 A partial schematic diagram of a second channel of the ejector nozzle of the ejector provided by the present invention;
[0025] Figure 7 A schematic diagram of the structure of a partial tube body of the ejector provided in the present invention Figure 1 ;
[0026] Figure 8 A schematic diagram of the structure of a partial tube body of the ejector provided in the present invention Figure 2 ;
[0027] Fig. 9 This is a schematic structural diagram of the upper air inlet burner provided in the present invention.
[0028] Description of reference numerals:
[0029] 10. ejector; 11. tube body; 111. first opening; 112. second opening; 113. bend; 114. first section of tube body; 115. second section of tube body; 116. third section of tube body; 117. fourth section of tube body; 118. fifth section of tube body; 119. connector; 1191. first surface; 120. first vibrator; 12. connector; 121. first channel; 122. connecting space; 123. first external thread; 13. ejector nozzle; 131. second channel; 132. contraction section; 1321. first central axis; 1322. first contraction section; 1323. second contraction section; 133. expansion section; 1331. second central axis;
[0030] 100. Upper air inlet burner; 20. Burner; 212. Inner ring mixing chamber; 213. Outer ring mixing chamber. DETAILED DESCRIPTION
[0031] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
[0032] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.
[0033] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply 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 disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0034] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.
[0035] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.
[0036] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.
[0037] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0038] The large number of bends in the tube of the ejector makes the gas fuel in the ejector flow poorly, which in turn leads to weak ejection capacity of the ejector. The weak ejection capacity of the ejector is prone to incomplete combustion, which puts the user in a dangerous environment, so this problem needs to be solved urgently.
[0039] The inventors have discovered that the number of bends can be controlled within two (including two) to greatly improve the smoothness of the flow of gas fuel (such as natural gas) in the ejector, thereby enhancing the ejection capacity of the ejector; on this basis, a contraction section can be provided at the outlet end of the ejector, and the inner diameter of the contraction section becomes smaller and smaller as the gas fuel flows, so that the gas fuel is compressed at the contraction section and then ejected from the opening at one end of the ejector nozzle away from the tube body. In this way, the gas fuel is subjected to the contraction pressure of the contraction section before being sent out from the ejector so that it can be sent out more smoothly, thereby further enhancing the ejection capacity of the ejector.
[0040] First aspect
[0041] The present disclosure provides an ejector 10, see Figures 1 to 9 As shown, the ejector 10 may include: a tube body 11, a connecting portion 12 and an ejection nozzle 13, the tube body 11 has a first opening 111 and a second opening 112, and the tube body 11 between the first opening 111 and the second opening 112 is provided with at most two turning points 113, so that the first opening 111 and the second opening 112 have a height difference; the connecting portion 12 is connected to the first opening 111, and has a first channel 121 connected to the first opening 111, and the connecting portion 12 is provided with a connecting space 122; the ejection nozzle 13 is connected to the second opening 112, and has a second channel 131 connected to the second opening 112, the second channel 131 includes: a contraction section 132, the contraction section 132 is adjacent to an end of the second channel 131 away from the second opening 112, and contracts in a direction away from the second opening 112, and the angle a between the first central axis 1321 of the contraction section 132 and the inner wall forming the contraction section 132 is less than 60 degrees.
[0042] It can also be said that the connection part 12, the tube body 11 and the ejection nozzle 13 are connected in sequence, and the connection space 122 of the connection part 12 is used to connect the gas supply device that provides gas fuel, so that the gas fuel provided by the gas supply device can enter the first channel 121 of the connection part 12, the internal pipeline of the tube body 11 and the second channel 131 of the ejection nozzle 13 in sequence, and mix with air to burn after being sent out through the ejection nozzle 13. In this process, there are at most two bends 113 on the tube body 11, so that the fluidity of the gas fuel therein is smoother, so as to enhance the ejection ability of the ejector 10; on this basis, the inner diameter of the contraction section 132 in the ejection nozzle 13 becomes smaller and smaller as the gas fuel flows, so that the gas fuel is compressed at the contraction section 132, and then ejected from the end opening of the ejection nozzle 13 away from the tube body 11, so that the gas fuel is subjected to the contraction pressure of the contraction section 132 before being sent out from the ejector 10, so that it is sent out more smoothly, thereby further enhancing the ejection ability of the ejector 10.
[0043] In the tube body 11, the bend 113 thereon can be an acute bend, a right-angle bend, or an obtuse bend. When the bend 113 on the tube body 11 is a right-angle bend or an obtuse bend, the gas fuel in the tube body 11 encounters less resistance when flowing, and flows more smoothly. The bend 113 can be a corner formed by connecting two planes, or a curved corner. When it is a curved corner, the gas fuel in the tube body 11 encounters less resistance when flowing, and flows more smoothly. The height difference between the first opening 111 and the second opening 112 can be specifically set according to the height of the gas storage device and the setting height of the burner 20 of different structures, so as to adapt to the gas storage device and the burner 20 of different height differences.
[0044] The connecting portion 12 has a first channel 121 for conveying gas fuel into the tube body 11, and the connecting portion 12 has inner and outer walls. The inner and outer walls of the connecting portion 12 may be provided with a first internal thread and a first external thread 123, respectively. The first internal thread allows the connecting portion 12 to be screwed onto the outer surface of the end of the tube body 11 corresponding to the first opening 111 by rotation, and is connected to the second external thread on the outer surface of the end of the tube body 11 corresponding to the first opening 111. The space around the first external thread 123 forms a connecting space 122 of the connecting portion 12, so that the air outlet pipe of the supply device can be screwed onto the first external thread 123 on the outer surface of the connecting portion 12 by rotation and is located in the connecting space 122, and the second internal thread on the inner surface of the air outlet pipe is connected to the first external thread 123 on the outer surface of the connecting portion 12. This arrangement can The connecting part 12 can be removed from the tube body 11 by rotating so as to perform maintenance, replacement, cleaning and the like. The connecting part 12 can also be integrally formed at one end of the tube body 11 corresponding to the first opening 111, and a first external thread 123 is provided on the outer surface of the connecting part 12. The connecting space 122 around the first external thread 123 allows the air outlet pipe of the supply device to be screwed onto the outer surface of the connecting part 12 by rotation and located in the connecting space 122, and the second internal thread on the inner surface of the air outlet pipe is connected to the first external thread 123 on the outer surface of the connecting part 12. This arrangement can reduce the assembly workload between the connecting part 12 and the tube body 11. The connecting part 12 can also be other arrangements.
[0045] The ejection nozzle 13 has a second passage 131 to deliver the gas fuel in the tube body 11. The inner diameter of the contraction section 132 of the second passage 131 near the second opening 112 is large, while the inner diameter of the end away from the second opening 112 is small, so that the gas fuel passing through the contraction section 132 can be compressed, thereby making the gas fuel flow smoother. The contraction section 132 can be as follows: Figure 5As shown in, it includes a first contraction section 1322 and a second contraction section 1323. The angle between the first central axis 1321 of the first contraction section 1322 and the inner wall forming the first contraction section 1322 is smaller than the angle between the first central axis 1321 of the second contraction section 1323 and the inner wall forming the second contraction section 1323. In this way, the gas fuel first contracts through the first contraction section 1322 and then immediately enters the second contraction section 1323 with a faster inner diameter change, so as to be rapidly contracted through the second contraction section 1323, thereby making the flow of the gas fuel smoother; the contraction section 132 can be a whole section that gradually contracts from the end close to the second opening 112 to the end away from the second opening 112, so as to achieve slow compression of the gas fuel, and the gradual contraction of the whole section does not require adjustment of the manufacturing parameters in the middle, so as to simplify the manufacturing process; the contraction section 132 can also include Figure 6 As shown in the figure, section A gradually contracts from the end close to the second opening 112 to the end far from the second opening 112, section B contracts abruptly over a large distance, section C gradually contracts, section D contracts abruptly over a large distance... In this way, a small amount of gas fuel can be gathered in sections A and C, and the driving force of the subsequent flow of gas fuel can make more gas fuel ejected from the outlet end of the ejector 10 per unit time, thereby further enhancing the ejection capacity of the ejector 10; the contraction section 132 can also be other contraction settings.
[0046] Here, the angle a between the first central axis 1321 of the contraction section 132 and the inner wall forming the contraction section 132 is less than 60 degrees. When the contraction section 132 includes multiple sections (such as the first contraction section 1322 and the second contraction section 1323 mentioned above), the angle a between the inner wall of each section and the first central axis 1321 can be less than 60 degrees.
[0047] In some embodiments, see Figure 5 and Figure 6As shown, multiple contraction sections 132 are coaxial and connected in sequence, and the angle a between the first central axis 1321 of each contraction section 132 and the inner wall forming the contraction section 132 is in the range of 20-40 degrees. The contraction section 132 shows a gradual contraction trend and the inner walls opposite to each other forming the contraction section 132 are symmetrical about the first central axis 1321. When the angle a between the first central axis 1321 of the contraction section 132 and the inner wall forming the contraction section 132 is in the range of 20-40 degrees, the contraction degree of the contraction section 132 is large, so that a greater compression force can be provided to the gas fuel passing through the contraction section 132, so that the flow of the gas fuel is smoother. The contraction section 132 shows a gradual contraction trend and the inner walls opposite to each other forming the contraction section 132 are symmetrical about the first central axis 1321. In this way, the contraction section 132 is of regular design, so that the manufacturing process of the contraction section 132 is simpler, and the compression force can be uniformly provided, so that the combustion of the gas fuel sent through the ejector 10 is more complete.
[0048] In some embodiments, see Figure 5 and Figure 6 As shown, the second channel 131 may also include: an expansion section 133, the expansion section 133 is connected to the end of the contraction section 132 away from the second opening 112, and expands in a direction away from the second opening 112, and the angle β between the second central axis 1331 of the expansion section 133 and the inner wall forming the expansion section 133 is greater than 60 degrees. In other words, after the gas fuel in the ejector 10 is compressed by the contraction section 132, it enters the expansion section 133 to increase the ejection area, so that the amount of gas fuel ejected through the ejector 10 is more per unit time, so as to increase the flame and increase the heat generated per unit time.
[0049] Here, the second central axis 1331 and the first central axis 1321 can be coaxially arranged or non-coaxially arranged. When coaxially arranged, the central position of the gas fuel in the ejection nozzle 13 remains unchanged, so that the flow is smoother. The contraction section 132 and the expansion section 133 can be symmetrically arranged or asymmetrically arranged. When symmetrically arranged, they can be manufactured twice by the same production equipment to reduce production costs, or they can be manufactured simultaneously by two identical production equipments to improve production efficiency.
[0050] In some embodiments, see Figures 1 to 3As shown, the tube body 11 may include a first tube body 114, a second tube body 115 and a third tube body 116 which are connected vertically in sequence, the opening of the first tube body 114 away from the end of the second tube body 115 is the first opening 111, the opening of the third tube body 116 away from the end of the second tube body 115 is the second opening 112, and the connection between the two adjacent tube bodies 11 forms a turning point 113; wherein the first tube body 114, the second tube body 115, the third tube body 116 and the connecting portion 12 are integrally formed. In other words, the tube body 11 has two vertical turning points 113, which not only makes the first opening 111 and the second opening 112 of the tube body 11 have a height difference, so as to adapt to the height difference between the gas supply device and the burner 20 of different structures, but also the two vertical turning points 113 make the tube body 11 have vertical beauty; the integrally formed design can reduce the assembly amount.
[0051] In some embodiments, see Figures 1 to 4 As shown, the tube body 11 may include a fourth tube body 117 and a fifth tube body 118 vertically connected to an opening at one end of the fourth tube body 117, the opening of the fourth tube body 117 away from the end of the fifth tube body 118 is a first opening 111, the opening of the fifth tube body 118 away from the end of the fourth tube body 117 is a second opening 112, and the connection between the fourth tube body 117 and the fifth tube body 118 forms a bend 113; wherein the fourth tube body 117, the fifth tube body 118 and the connecting portion 12 are integrally formed. In other words, the tube body 11 has a vertical bend 113, which not only makes the first opening 111 and the second opening 112 of the tube body 11 have a height difference, so as to adapt to the height difference between the gas supply device and the burner 20 of different structures, but also the vertical bend 113 makes the tube body 11 have a vertical beauty; the integrally formed design can reduce the assembly amount.
[0052] In some embodiments, see Figures 1 to 4As shown, there are two tube bodies 11, namely a first tube body 11 and a second tube body 11; the first tube body 11 may include a first tube body section 114, a second tube body section 115 and a third tube body section 116 which are vertically connected in sequence, the opening of the first tube body section 114 away from the end of the second tube body section 115 is a first opening 111, the opening of the third tube body section 116 away from the end of the second tube body section 115 is a second opening 112, and the connection between the two adjacent tube body sections 11 forms a turning point 113; the second tube body section 114 may include a first tube body section 114, a second tube body section 115 and a third tube body section 116. The tube body 11 includes a fourth tube body 117 and a fifth tube body 118 vertically connected to an opening at one end of the fourth tube body 117. The opening at one end of the fourth tube body 117 away from the fifth tube body 118 is a first opening 111, and the opening at one end of the fifth tube body 118 away from the fourth tube body 117 is a second opening 112. The connection between the fourth tube body 117 and the fifth tube body 118 forms a bend 113; wherein, the first tube body 11 and the second tube body 11 are connected by a connector 119. The first tube body 11 and the second tube body 11 can respectively provide gas fuel to the same or different gas mixing chambers on the same burner 20. The first tube body 11 and the second tube body 11 are designed differently, so that different designs can be made according to raw materials of different sizes; the connector 119 connects the first tube body 11 and the second tube body 11 together, so as to improve the integration and structural strength of the ejector 10.
[0053] In some embodiments, see Figures 1 to 4 As shown, the connecting member 119 has a first surface 1191, the first section of the tube 114 is staggered with the connecting member 119 and is parallel to the plane where the first surface 1191 is located, the third section of the tube 116 is connected to the first surface 1191, part of the fourth section of the tube 117 is staggered with the connecting member 119 and is opposite to and parallel to the first section of the tube 114, part of the fourth section of the tube 117 is opposite to and parallel to the first surface 1191, and the fifth section of the tube 118 extends in the direction of the first surface 1191. In this way, the first section of the tube 114, the second section of the tube 115, the third section of the tube 116, the fourth section of the tube 117 and the fifth section of the tube 118 are either parallel to the first surface 1191, or perpendicular to the first surface 1191, or parallel to and connected to the first surface 1191, so that the visual effect of the ejector 10 formed by connecting the first tube 11, the second tube 11 and the connecting member 119 is more regular, and the vertical and parallel are more convenient in manufacturing.
[0054] In some embodiments, see Figure 1 As shown, the inner wall of the tube body 11 near the second opening 112 is connected to the first vibrating member 120, and the first vibrating member 120 vibrates when the gas fuel entering from the first opening 111 flows through the first vibrating member 120. When the first vibrating member 120 vibrates, an airflow is generated to make the gas fuel in the tube body 11 be sent out more smoothly, thereby further improving the ejection ability of the ejector 10.
[0055] The first vibrating member 120 may be Figure 7 and Figure 8 The vibration plate shown in the figure has one end connected to the inner wall of the tube body 11 near the second opening 112, and the other end is a free end and is opposite to the inner wall of the tube body 11 near the second opening 112. When the gas fuel entering the first opening 111 flows through the vibration plate, the other end of the vibration plate rotates relative to one end to generate airflow, so that the gas fuel in the tube body 11 is driven by the airflow when being sent out to be smoother. When the first vibrating member 120 is a vibration plate, the number of vibration plates can be multiple, and the multiple vibration plates can be as follows. Figure 7 As shown in the figure, the inner wall of the tube body 11 is spirally distributed in the direction of the second opening 112 to gradually provide airflow to the gas fuel flowing through, and as the tube body 11 approaches one end of the second opening 112, the number of vibrating plates passing through increases to receive more airflow, so that the gas fuel in the tube body 11 is sent out more smoothly, thereby further improving the ejection capacity of the ejector 10; multiple vibrating plates can also be as follows Figure 8 The inner wall of the tube body 11 near the second opening 112 shown in FIG. 1 is evenly arranged.
[0056] The first vibrating member 120 may also be a vibrating column, one end of which is connected to the inner wall of the tube body 11 near the second opening 112, and the other end is a free end. When the gas fuel entering the first opening 111 flows through the vibrating column, the other end of the vibrating column vibrates relative to one end to generate airflow, so that the gas fuel in the tube body 11 is driven by the airflow when being sent out to be smoother. When the first vibrating member 120 is a vibrating column, the number of vibrating columns may be multiple, and the multiple vibrating columns may be spirally distributed along the inner wall of the tube body 11 toward the second opening 112 to gradually provide airflow to the gas fuel flowing through, and as the tube body 11 approaches one end of the second opening 112, the number of vibrating columns passing through increases to receive more airflow, so that the gas fuel in the tube body 11 is sent out more smoothly, thereby further improving the ejection capacity of the ejector 10; the multiple vibrating columns may also be evenly arranged on a circle of inner walls near the second opening 112 in the tube body 11.
[0057] The first vibrating member 120 may also be other configurations, which are not limited here.
[0058] In some embodiments, a second vibrator may be provided on one side of the contraction section 132 of the ejector nozzle 13 close to the second opening 112, and when the gas fuel entering from the first opening 111 flows through the second vibrator, the second vibrator vibrates. In this way, on the basis of the first vibrator 120, the vibration of the second vibrator can provide more driving force to the gas fuel entering the contraction section 132, so that the gas fuel in the tube body 11 is sent out more smoothly, thereby further improving the ejection ability of the ejector 10. Here, the second vibrator can refer to the setting of the first vibrator 120, and will not be repeated here.
[0059] In some embodiments, the opening of the ejector nozzle 13 at one end away from the tube body 11 can be relative to the inlet of the gas mixing chamber of the burner 20 below with a gap, so that air can enter the gas mixing chamber through the gap distance and the inlet of the gas mixing chamber, and mix with the gas fuel (such as natural gas) ejected by the ejector 10, and then burn after being sent out from the outlet of the burner 20; the side wall of the ejector nozzle 13 can also be provided with a through hole, so that air can enter the ejector nozzle 13 through the through hole and be pre-mixed with the gas fuel (such as natural gas) in the ejector nozzle 13, and then be mixed again after entering the gas mixing chamber of the burner 20, so that the mixing effect is more uniform.
[0060] When a through hole is provided on the side wall of the injection nozzle 13, the through hole can be located at one end of the contraction section 132 close to the second opening 112, so as to achieve mixing of the gas fuel and air before the contraction section 132 provides the contraction pressure, so that the compression after the contraction section 132 can not only improve the injection ability but also improve the mixing effect.
[0061] Second aspect
[0062] The present disclosure provides a top-inlet burner 100, see Figure 8 As shown, the upper air inlet burner 100 may include: an ejector 10 and a burner 20 in any embodiment of the first aspect, the burner 20 is provided with a gas mixing chamber and an inlet and an outlet connected to the gas mixing chamber, and the inlet is opposite to the opening of one end of the second channel 131 away from the second opening 112.
[0063] The burner 20 may be annular and hollow inside to form a gas mixing chamber. The opening at one end of the second channel 131 away from the second opening 112 is opposite to the inlet of the gas mixing chamber, so that the gas fuel can enter the gas mixing chamber from the inlet, and the air can also enter the gas mixing chamber from the inlet to be mixed in the gas mixing chamber, and finally can be sent out from the outlet in the center of the burner 20 for combustion.
[0064] In some embodiments, see Figure 8As shown, the burner 20 has an inner ring mixing chamber 212 and an outer ring mixing chamber 213 arranged around the outer circumference of the inner ring mixing chamber 212, the inlet of the inner ring mixing chamber 212 is opposite to the opening of one end of the second channel 131 of one ejector 10 away from the second opening 112, and the inlet of the outer ring mixing chamber 213 is opposite to the opening of one end of the second channel 131 of the other ejector 10 away from the second opening 112. That is to say, the burner 20 has an inner ring fire formed by the inner ring mixing chamber 212 and an outer ring fire formed by the outer ring mixing chamber 213, and the inner ring fire can be turned on or off by controlling the ejector 10 connected to the inner ring mixing chamber 212 to supply gas fuel to the inner ring mixing chamber 212 or not. The outer ring fire can also be turned on or off by controlling the ejector 10 connected to the outer ring mixing chamber 213 to supply gas fuel to the outer ring mixing chamber 213 or not. In this way, a variety of applicable modes can be formed, namely: inner ring fire combustion mode, outer ring fire combustion mode, and inner and outer ring fire simultaneous combustion mode.
[0065] It should be noted that the ejector in the upper air inlet burner provided by the present disclosure is similar to the description of the ejector embodiment described above, and has similar beneficial effects as the ejector embodiment described above. For technical details not disclosed in the upper air inlet burner embodiment of the present disclosure, please refer to the description of the ejector embodiment in the present disclosure for understanding, and no further description will be given here.
[0066] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.
[0067] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.
Claims
1. An ejector, characterized in that: include: The tube body has a first opening and a second opening, and the tube body between the first opening and the second opening is provided with at most two bends, so that the first opening and the second opening have a height difference; a connecting portion connected to the first opening and having a first passage communicating with the first opening, and the connecting portion is provided with a connecting space; An injection nozzle is connected to the second opening and has a second channel connected to the second opening, the second channel includes: a contraction section, the contraction section is adjacent to an end of the second channel away from the second opening and contracts in a direction away from the second opening, and the angle between the first central axis of the contraction section and the inner wall forming the contraction section is less than 60 degrees.
2. The ejector according to claim 1, characterized in that: The multiple contraction sections are coaxial and connected in sequence, and the angle between the first central axis of each contraction section and the inner wall forming the contraction section is in the range of 20-40 degrees. The contraction section shows a gradual contraction trend and the inner walls opposite to each other forming the contraction section are symmetrical about the first central axis.
3. The ejector according to claim 1, characterized in that: The second channel also includes: an expansion section, which is connected to an end of the contraction section away from the second opening and expands in a direction away from the second opening, and the angle between the second central axis of the expansion section and the inner wall forming the expansion section is greater than 60 degrees.
4. The ejector according to any one of claims 1 to 3, characterized in that: The tube body comprises a first tube body section, a second tube body section and a third tube body section which are vertically connected in sequence, the opening of the first tube body section away from one end of the second tube body section is the first opening, the opening of the third tube body section away from one end of the second tube body section is the second opening, and the connection between two adjacent tube body sections forms the turning point; Wherein, the first section of the tube body, the second section of the tube body, the third section of the tube body and the connecting portion are integrally formed.
5. The ejector according to any one of claims 1 to 3, characterized in that: The tube body comprises a fourth tube body and a fifth tube body vertically connected to an opening at one end of the fourth tube body, the opening of the fourth tube body away from one end of the fifth tube body is the first opening, the opening of the fifth tube body away from one end of the fourth tube body is the second opening, and the connection between the fourth tube body and the fifth tube body forms the turning point; Wherein, the fourth section of the tube body, the fifth section of the tube body and the connecting portion are integrally formed.
6. The ejector according to any one of claims 1 to 3, characterized in that: The number of the tube bodies is two, namely a first tube body and a second tube body; The first tube body comprises a first tube body section, a second tube body section and a third tube body section which are vertically connected in sequence, an opening of the first tube body section away from one end of the second tube body section is the first opening, an opening of the third tube body section away from one end of the second tube body section is the second opening, and the connection between two adjacent tube body sections forms the turning point; The second tube body comprises a fourth tube body and a fifth tube body vertically connected to an opening at one end of the fourth tube body, the opening of the fourth tube body away from one end of the fifth tube body is the first opening, the opening of the fifth tube body away from one end of the fourth tube body is the second opening, and the connection between the fourth tube body and the fifth tube body forms the turning point; Wherein, the first tube body and the second tube body are connected via a connecting piece.
7. The ejector according to claim 6, characterized in that: The connecting member has a first surface, the first section of the tube is offset from the connecting member and is parallel to the plane where the first surface is located, the third section of the tube is connected to the first surface, part of the fourth section of the tube is offset from the connecting member and is opposite to and parallel to the first section of the tube, part of the fourth section of the tube is opposite to and parallel to the first surface, and the fifth section of the tube extends toward the first surface.
8. The ejector according to claim 1, characterized in that: A first vibrating member is connected to an inner wall of the tube body near the second opening. When the gas fuel entering from the first opening flows through the first vibrating member, the first vibrating member vibrates.
9. An upward air inlet burner, characterized in that: include: The ejector according to any one of claims 1 to 8; A burner is provided with a gas mixing chamber and an inlet and an outlet communicating with the gas mixing chamber, wherein the inlet is opposite to an end opening of the second channel away from the second opening.
10. The upward air inlet burner according to claim 9, characterized in that: The burner comprises an inner ring mixing chamber and an outer ring mixing chamber arranged around the inner ring mixing chamber, the inlet of the inner ring mixing chamber is opposite to the opening of one end of the second channel of one ejector away from the second opening, and the inlet of the outer ring mixing chamber is opposite to the opening of one end of the second channel of another ejector away from the second opening.