Premixing burner
By adding air mixing components to the premixed burner, the full mixing of gas and air is solved, and the problem of poor carbon monoxide and nitrogen oxide emissions of traditional burners is improved, and the energy utilization efficiency is reduced and the burner cost is reduced.
Patent Information
- Application Number
- CN202421962684.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-14
AI Technical Summary
The carbon monoxide and nitrogen oxide emissions of traditional wall-mounted burners are not ideal, and the complex structure of the burner leads to high prices. How to improve the economy of the premixed burner and reduce the emissions of carbon monoxide and nitrogen oxides has become an urgent problem.
A premix burner is designed, adding an air mixing assembly to allow the gas and air to be fully mixed before entering the combustion chamber, and the full mixing of air and gas is achieved using an electromagnetic pump and a connecting pipe.
By fully mixing gas and air, emissions of carbon monoxide and nitrogen oxides are reduced, energy utilization efficiency is improved, and the burner structure is simplified to reduce costs.
Smart Images
Figure CN222992891U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of burners, in particular to a premix burner. Background Art
[0002] For traditional wall-mounted boilers, the emissions of carbon monoxide and nitrogen oxides are not ideal. However, with the further popularization of fully premixed wall-mounted boilers, the emissions of carbon monoxide and nitrogen oxides have been relatively well improved. In practical applications, generally, the burner structure of a fully premixed wall-mounted boiler consists of a blower and a Venturi. The blower starts to rotate upon receiving an ignition signal, draws air into the furnace through a filter, and simultaneously draws gas into the furnace through the Venturi. The air and gas are mixed inside the blower, and then blown into the furnace through a pipeline, where they come into contact with an electric spark for combustion. Generally, the burner and heat exchanger structures of fully premixed wall-mounted boilers are relatively complex, so the price is relatively high.
[0003] For traditional wall-mounted boiler burners, the gas is directly sprayed from the nozzle into the pipeline of the burner grate and is ignited without being fully mixed with air. Therefore, their emissions of carbon monoxide and nitrogen oxides are not as good as those of fully premixed burners. How to improve the economy of premix burners while reducing the emissions of carbon monoxide and nitrogen oxides has become an urgent problem to be solved. Summary of the Utility Model
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a premix burner, aiming to reduce the emissions of carbon monoxide and nitrogen oxides and thus improve the energy utilization efficiency.
[0005] In a first aspect, the utility model provides a premix burner, which is characterized by comprising:
[0006] A burner assembly provided with a gas inlet pipeline, and the gas inlet pipeline includes a gas inlet and a connection port;
[0007] An air mixing assembly provided with a connection pipeline and an electromagnetic pump. One end of the connection pipeline is connected to the electromagnetic pump, the other end of the connection pipeline is communicated with the gas inlet pipeline, and the electromagnetic pump is provided with an air inlet.
[0008] The premix burner according to the embodiment of the present application has at least the following beneficial effects: On the basis of the burner, a new air mixing assembly is added, enabling the gas and air to be fully mixed before entering the combustion chamber, reducing the emissions of carbon monoxide and nitrogen oxides, and improving the energy utilization efficiency.
[0009] According to some embodiments of the utility model, the air mixing assembly is provided with a check valve, and the bottom of the check valve is connected to the connection port.
[0010] According to some embodiments of the present utility model, the air mixing assembly is further provided with a premixing chamber, and the premixing chamber is connected to one end of the gas inlet pipe.
[0011] According to some embodiments of the present utility model, the burner assembly further includes a nozzle and a combustion chamber.
[0012] According to some embodiments of the present utility model, the number of the nozzles and the combustion chambers is at least one, and the nozzles and the combustion chambers are sequentially and correspondingly installed.
[0013] According to some embodiments of the present utility model, the connecting pipe is composed of multiple sections of pipes sequentially connected to form a specific curved shape, and the pipe is composed of a continuous circumferential side without end caps.
[0014] According to some embodiments of the present utility model, the material of the connecting pipe is copper.
[0015] According to some embodiments of the present utility model, the electromagnetic pump further includes an air inlet pipe.
[0016] According to some embodiments of the present utility model, it further includes a base and a bracket.
[0017] According to some embodiments of the present utility model, the burner assembly is installed on the left part of the bracket, one end of the connecting pipe is installed in front of the bottom of the burner assembly, and the other end of the connecting pipe extends to the right and is connected to the top of the electromagnetic pump.
[0018] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:
[0020] Figure 1 is a schematic structural diagram of a premix burner provided by an embodiment of the present utility model;
[0021] Figure 2 is a schematic structural diagram of a premix burner from another angle provided by an embodiment of the present utility model;
[0022] Figure 3 is a schematic structural diagram of the connecting pipe provided by an embodiment of the present utility model;
[0023] Figure 4 is a schematic structural diagram of the electromagnetic device provided by an embodiment of the present utility model;
[0024] Reference numerals: premixed burner 100, burner assembly 200, air mixing assembly 300, base 400, bracket 500, gas inlet pipe 210, gas inlet 211, connection port 212, nozzle 220, combustion chamber 230, connection pipe 310, electromagnetic pump 320, air inlet 330, check valve 340, premixing chamber 350, air inlet pipe 360. Detailed implementation manners
[0025] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.
[0026] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention.
[0027] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0028] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.
[0029] In a first aspect, the present application provides a premixed burner 100, including: a burner assembly 200, an air mixing assembly 300.
[0030] Refer to Figure 1 and Figure 2, the premixed burner assembly 100 includes a burner assembly 200 provided with a gas inlet pipe 210, the gas inlet pipe 210 including a gas inlet 211 and a connection port 212; an air mixing assembly 300 provided with a connection pipe 310 and an electromagnetic pump 320, one end of the connection pipe 310 being connected to the electromagnetic pump 320, the other end of the connection pipe 310 being in communication with the gas inlet pipe 210, and the electromagnetic pump 320 being provided with an air inlet 330.
[0031] It should be noted that the cross-section of one end of the connection pipe 310 matches the cross-section at the connection with the electromagnetic pump 320, and the cross-section of the other end of the connection pipe 310 matches the cross-section of the connection port 212 of the gas inlet pipe 210. The application does not make specific restrictions on the area and shape of the cross-section, which can be adjusted according to the actual situation.
[0032] It should be noted that the connection between the connection pipe 310 and the electromagnetic pump 320 can be a detachable connection, or the connection pipe and the electromagnetic pump can be fixedly connected; the connection between the connection pipe 310 and the gas inlet pipe 210 can be a detachable connection, or the connection pipe and the gas inlet pipe can be fixedly connected. The application does not make specific restrictions.
[0033] It can be understood that air enters the electromagnetic pump from the air inlet 330, then reaches the gas inlet pipe 210 through the connection pipe 310. At the same time, gas enters from the gas inlet 211 of the gas inlet pipe 210, so that air and gas are fully mixed, thereby reducing the emissions of carbon monoxide and nitrogen oxides in subsequent combustion and improving the energy utilization efficiency.
[0034] Furthermore, the air mixing assembly 300 is provided with a check valve 340, and the bottom of the check valve 340 is connected to the connection port 212.
[0035] Refer to Figure 1 and Figure 2 , the air mixing assembly 300 is provided with a check valve 340, the bottom of the check valve 340 is connected to the connection port 212, and the top of the check valve 340 is in communication with the connection pipe 310.
[0036] It can be understood that when air enters the connection pipe 310, it then enters the gas pipe 210 through the check valve 340 to be mixed with gas. The check valve 340 can prevent gas from entering the connection pipe 310 and overflowing through the air inlet 330, thus causing waste of resources.
[0037] It can be understood that the check valve 340 allows air to flow unidirectionally while ensuring that gas does not leak, thereby improving the safety of the entire combustion process.
[0038] Furthermore, the air mixing component 300 is further provided with a premixing chamber 350, and the premixing chamber 350 is connected to one end of the gas inlet pipe 210.
[0039] Referring to Figures 1 - 4 , the air mixing component 300 is further provided with a premixing chamber 350, and the premixing chamber 350 is connected to one end of the gas inlet pipe 210.
[0040] It should be noted that the connection mode between the premixing chamber 350 and the gas inlet pipe 210 can be a detachable connection, or the premixing chamber and the gas inlet pipe can be fixedly connected. For the specific connection mode, this application does not make specific limitations.
[0041] It can be understood that after the air enters the gas pipeline through the one-way valve and then enters the premixing chamber together with the gas for mixing. This method can enable the air and the gas to be fully mixed in the premixing chamber before combustion. During the subsequent combustion process, this method can reduce the emissions of carbon monoxide and nitrogen oxides, thereby improving the energy utilization efficiency.
[0042] Furthermore, the burner assembly 200 further includes a nozzle 220 and a combustion chamber 230.
[0043] Referring to Figure 1 and Figure 2 , the burner assembly 200 further includes a nozzle 220 and a combustion chamber 230. The nozzle 220 is installed above the premixing chamber 350, and the combustion chamber 230 is installed above the corresponding nozzle 220.
[0044] It should be noted that after the air and the gas enter the premixing chamber 350 for full mixing, they are then sprayed upward through the nozzle 220 and sprayed into the upper combustion chamber 230, so that the mixed gas and air are combusted in the combustion chamber 230.
[0045] It should be noted that for the shape and size of the nozzle, this application does not make specific limitations.
[0046] Furthermore, the number of the nozzles and the combustion chambers is at least one, and the nozzles and the combustion chambers are installed corresponding to each other in sequence.
[0047] Referring to Figure 1 and Figure 2 , the number of the nozzle 220 and the combustion chamber 230 is at least one, and the nozzle 220 and the combustion chamber 230 are installed corresponding to each other in sequence.
[0048] It should be noted that the number of the nozzle 220 and the combustion chamber 230 is the same. The number of the nozzle 220 can be one or more. Correspondingly, the number of the combustion chamber 230 can also be one or more corresponding to it.
[0049] It can be understood that when the number of nozzles 220 is set to one, a combustion chamber corresponding thereto is provided above the nozzle 220 at the same time; when the number of nozzles 220 is set to multiple, multiple combustion chambers corresponding thereto are provided above the nozzles 220 at the same time.
[0050] In one embodiment, when the number of nozzles 220 is set to one, a combustion chamber corresponding thereto is provided above the nozzle 220 at the same time. After air and gas enter the premixing chamber 350 and are fully mixed, they are then sprayed upward through one nozzle 220 and sprayed into one combustion chamber 230 above, so that the mixed gas and air are combusted in the combustion chamber 230.
[0051] In another embodiment, when the number of nozzles 220 is set to multiple, multiple combustion chambers corresponding thereto are provided above the nozzles 220 at the same time. After air and gas enter the premixing chamber 350 and are fully mixed, they are then sprayed upward through multiple nozzles 220 and sprayed into the corresponding multiple combustion chambers 230 above, so that the mixed gas and air are combusted in the combustion chamber 230. This method enables the fully combustion of the mixed gas and improves the utilization efficiency of energy.
[0052] In one embodiment, the nozzle 220 is detachably installed above the premixing chamber. When the nozzle 220 is damaged, only the damaged nozzle needs to be replaced. This method can save costs and improve work efficiency at the same time.
[0053] Furthermore, the connecting pipe 310 is composed of multiple sections of pipes connected in sequence to form a specific bent shape, and the pipe is composed of a continuous circumferential side without end caps.
[0054] Refer to Figure 3 , the connecting pipe 310 is composed of multiple sections of pipes connected in sequence to form a specific bent shape, and the pipe is composed of a continuous circumferential side without end caps.
[0055] It should be noted that the connecting pipe 310 is composed of multiple sections of pipes connected in sequence. The connection method can be a fixed connection or a detachable connection. For the specific connection method, this application does not make a specific limitation.
[0056] Furthermore, the material of the connecting pipe 310 is copper.
[0057] It should be noted that the materials of multiple sections of pipes are all copper. For other materials that may be used at the connection, this application does not make specific requirements.
[0058] Furthermore, the electromagnetic pump further includes an air intake pipe 360.
[0059] Refer to Figures 1 - 4, the electromagnetic pump further includes an air intake pipe 360. Air enters the air intake pipe 360 through the air intake port 330, then reaches the solenoid valve 320, and then enters the connecting pipe 310. After passing through the check valve 340, it enters the gas inlet pipe 210 and then enters the premixing chamber 350 together with the gas.
[0060] Furthermore, it also includes a base 400 and a bracket 500.
[0061] Referring to Figure 1 and Figure 2 , the premix burner 100 further includes a base 400 and a bracket 500. The premixing chamber 350 is installed above the base, and the combustion chamber 230 is installed above the bracket 500.
[0062] It should be noted that the base 400 includes a first base and a second base. The first base and the second base cooperate with each other, and the first base and the second base are respectively located on the left and right sides of the premixing chamber 350.
[0063] Furthermore, the burner assembly 200 is installed on the left part of the bracket 500. One end of the connecting pipe 310 is installed in front of the bottom of the burner assembly 200, and the other end of the connecting pipe 310 extends to the right and is connected to the top of the electromagnetic pump 320.
[0064] Referring to Figures 1 - 4 , the burner assembly 200 is installed on the left part of the bracket 500. One end of the connecting pipe 310 is installed in front of the bottom of the burner assembly 200, and the other end of the connecting pipe 310 extends to the right and is connected to the top of the electromagnetic pump 320.
[0065] It should be noted that for the angle and length of the extended section of the connecting pipe 310, the present application does not make specific restrictions.
[0066] In one embodiment, air enters the air intake pipe 360 from the air intake port 330, then reaches the solenoid valve 320, passes through the connecting pipe 310 to reach the check valve 340. After passing through the check valve 340, the air reaches the gas inlet pipe 210. At the same time, gas enters the gas inlet pipe from the gas inlet 211. The air and the gas then enter the premixing chamber 350 for sufficient mixing. The mixed gas is sprayed into a corresponding combustion chamber 230 through a nozzle 220 for combustion.
[0067] In one embodiment, air enters the air intake duct 360 from the air inlet 330, then reaches the solenoid valve 320, passes through the connecting duct 310 to reach the check valve 340. After passing through the check valve 340, the air reaches the gas inlet duct 210. Meanwhile, gas enters the gas inlet duct from the gas inlet 211. The air and gas then enter the premixing chamber 350 for sufficient mixing. The mixed gas is sprayed into the corresponding plurality of combustion chambers 230 through a plurality of nozzles 220 for combustion. This method reduces the emissions of carbon monoxide and nitrogen oxides, thereby improving the energy utilization efficiency.
[0068] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0069] The above is the preferred solution of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.
Claims
1. A premix burner, characterized in that: include: The burner assembly is provided with a gas inlet pipeline, wherein the gas inlet pipeline comprises a gas inlet and a connecting port; The air mixing component is provided with a connecting pipe and an electromagnetic pump, one end of the connecting pipe is connected to the electromagnetic pump, the other end of the connecting pipe is communicated with the gas inlet pipe, and the electromagnetic pump is provided with an air inlet.
2. The premix burner according to claim 1, characterized in that: The air mixing assembly is provided with a one-way valve, and the bottom of the one-way valve is installed on the connecting port.
3. The premix burner according to claim 1, characterized in that: The air mixing assembly is also provided with a premixing chamber, and the premixing chamber is connected to one end of the gas inlet pipeline.
4. The premix burner according to claim 1, characterized in that: The burner assembly also includes a nozzle and a combustion chamber.
5. The premix burner according to claim 4, characterized in that: The number of the nozzles and the number of the combustion chambers are both multiple, and the multiple nozzles and the multiple combustion chambers are installed in sequence and correspondingly.
6. The premix burner according to claim 1, characterized in that: The connecting pipe is formed by connecting a plurality of pipe sections in sequence to form a specific curved shape, and the pipe is formed by a continuous circumferential side surface without an end cover.
7. The premix burner according to claim 6, characterized in that: The material of the connecting pipe is metal copper.
8. The premix burner according to claim 1, characterized in that: The electromagnetic pump also includes an air intake conduit.
9. The premix burner according to claim 1, characterized in that: Also includes base and stand.
10. The premix burner according to claim 9, characterized in that: The burner assembly is installed on the left part of the bracket, one end of the connecting pipe is installed in front of the bottom of the burner assembly, and the other end of the connecting pipe extends to the right side to be connected with the top of the electromagnetic pump.